--- /dev/null
+variables:
+ coverage: false
+
+trigger: ['main', '3.11', '3.10', '3.9', '3.8', '3.7']
+
+jobs:
+- job: Prebuild
+ displayName: Pre-build checks
+
+ pool:
+ vmImage: ubuntu-20.04
+
+ steps:
+ - template: ./prebuild-checks.yml
+
+
+- job: Docs_PR
+ displayName: Docs PR
+ dependsOn: Prebuild
+ condition: and(succeeded(), eq(dependencies.Prebuild.outputs['docs.run'], 'true'))
+
+ pool:
+ vmImage: ubuntu-20.04
+
+ steps:
+ - template: ./docs-steps.yml
+ parameters:
+ upload: true
+
+
+- job: macOS_CI_Tests
+ displayName: macOS CI Tests
+ dependsOn: Prebuild
+ #condition: and(succeeded(), eq(dependencies.Prebuild.outputs['tests.run'], 'true'))
+ # bpo-39837: macOS tests on Azure Pipelines are disabled
+ condition: false
+
+ variables:
+ testRunTitle: '$(build.sourceBranchName)-macos'
+ testRunPlatform: macos
+
+ pool:
+ vmImage: macos-10.15
+
+ steps:
+ - template: ./macos-steps.yml
+
+
+- job: Ubuntu_CI_Tests
+ displayName: Ubuntu CI Tests
+ dependsOn: Prebuild
+ condition: and(succeeded(), eq(dependencies.Prebuild.outputs['tests.run'], 'true'))
+
+ pool:
+ vmImage: ubuntu-20.04
+
+ variables:
+ testRunTitle: '$(build.sourceBranchName)-linux'
+ testRunPlatform: linux
+ openssl_version: 1.1.1q
+
+ steps:
+ - template: ./posix-steps.yml
+ parameters:
+ dependencies: apt
+
+
+- job: Ubuntu_Coverage_CI_Tests
+ displayName: Ubuntu CI Tests (coverage)
+ dependsOn: Prebuild
+ condition: |
+ and(
+ and(
+ succeeded(),
+ eq(variables['coverage'], 'true')
+ ),
+ eq(dependencies.Prebuild.outputs['tests.run'], 'true')
+ )
+
+ pool:
+ vmImage: ubuntu-20.04
+
+ variables:
+ testRunTitle: '$(Build.SourceBranchName)-linux-coverage'
+ testRunPlatform: linux-coverage
+ openssl_version: 1.1.1q
+
+ steps:
+ - template: ./posix-steps.yml
+ parameters:
+ dependencies: apt
+ coverage: true
+
+
+- job: Windows_CI_Tests
+ displayName: Windows CI Tests
+ dependsOn: Prebuild
+ condition: and(succeeded(), eq(dependencies.Prebuild.outputs['tests.run'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ strategy:
+ matrix:
+ win32:
+ arch: win32
+ buildOpt: '-p Win32'
+ testRunTitle: '$(Build.SourceBranchName)-win32'
+ testRunPlatform: win32
+ win64:
+ arch: amd64
+ buildOpt: '-p x64'
+ testRunTitle: '$(Build.SourceBranchName)-win64'
+ testRunPlatform: win64
+ maxParallel: 4
+
+ steps:
+ - template: ./windows-steps.yml
+
+ - template: ./windows-layout-steps.yml
+ parameters:
+ kind: nuget
+ - template: ./windows-layout-steps.yml
+ parameters:
+ kind: embed
+ - template: ./windows-layout-steps.yml
+ parameters:
+ kind: appx
+ fulltest: true
--- /dev/null
+parameters:
+ latex: false
+ upload: false
+
+steps:
+- checkout: self
+ clean: true
+ fetchDepth: 5
+
+- task: UsePythonVersion@0
+ displayName: 'Use Python 3.6 or later'
+ inputs:
+ versionSpec: '>=3.6'
+
+- script: python -m pip install -r requirements.txt
+ workingDirectory: '$(build.sourcesDirectory)/Doc'
+ displayName: 'Install build dependencies'
+
+- ${{ if ne(parameters.latex, 'true') }}:
+ - script: make check html PYTHON=python
+ workingDirectory: '$(build.sourcesDirectory)/Doc'
+ displayName: 'Build documentation'
+
+- ${{ if eq(parameters.latex, 'true') }}:
+ - script: sudo apt-get update && sudo apt-get install -qy --force-yes texlive-full
+ displayName: 'Install LaTeX'
+
+ - script: make dist PYTHON=python SPHINXBUILD='python -m sphinx' BLURB='python -m blurb'
+ workingDirectory: '$(build.sourcesDirectory)/Doc'
+ displayName: 'Build documentation'
+
+- ${{ if eq(parameters.upload, 'true') }}:
+ - task: PublishBuildArtifacts@1
+ displayName: 'Publish docs'
+
+ inputs:
+ PathToPublish: '$(build.sourcesDirectory)/Doc/build'
+ ArtifactName: docs
+ publishLocation: Container
+
+ - ${{ if eq(parameters.latex, 'true') }}:
+ - task: PublishBuildArtifacts@1
+ displayName: 'Publish dist'
+ inputs:
+ PathToPublish: '$(build.sourcesDirectory)/Doc/dist'
+ ArtifactName: docs_dist
+ publishLocation: Container
--- /dev/null
+# Locate a set of the tools used for builds
+
+steps:
+ - template: windows-release/find-sdk.yml
+ parameters:
+ toolname: 'signtool.exe'
+
+ - powershell: |
+ $vcvarsall = (& "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" `
+ -prerelease `
+ -latest `
+ -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 `
+ -find VC\Auxiliary\Build\vcvarsall.bat)
+ Write-Host "Found vcvarsall at $vcvarsall"
+ Write-Host "##vso[task.setVariable variable=vcvarsall]$vcvarsall"
+ displayName: 'Find vcvarsall.bat'
+
+ - powershell: |
+ $msbuild = (& "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" `
+ -prerelease `
+ -latest `
+ -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 `
+ -find MSBuild\Current\Bin\msbuild.exe)
+ Write-Host "Found MSBuild at $msbuild"
+ Write-Host "##vso[task.setVariable variable=msbuild]$msbuild"
+ displayName: 'Find MSBuild'
--- /dev/null
+name: $(SourceTag)_$(Date:yyyyMMdd)$(Rev:.rr)
+
+variables:
+ IntDir: '$(Build.BinariesDirectory)'
+ OutDir: '$(Build.ArtifactStagingDirectory)'
+
+ # MUST BE SET AT QUEUE TIME
+ # SigningCertificate: 'Python Software Foundation'
+ # SourcesRepo: 'https://github.com/python/cpython-source-deps'
+ # SourceTag: 'libffi-3.4.2'
+
+jobs:
+- job: Build_LibFFI
+ displayName: LibFFI
+ pool:
+ vmImage: windows-latest
+
+ workspace:
+ clean: all
+
+ steps:
+ - checkout: none
+
+ - template: ./find-tools.yml
+
+ - powershell: |
+ mkdir -Force "$(IntDir)\script"
+ iwr "https://github.com/python/cpython/raw/main/PCbuild/prepare_libffi.bat" `
+ -outfile "$(IntDir)\script\prepare_libffi.bat"
+ displayName: 'Download build script'
+
+ - powershell: |
+ git clone $(SourcesRepo) -b $(SourceTag) --depth 1 -c core.autocrlf=false -c core.eol=lf .
+ displayName: 'Check out LibFFI sources'
+
+ - script: 'prepare_libffi.bat --install-cygwin'
+ workingDirectory: '$(IntDir)\script'
+ displayName: 'Install Cygwin and build'
+ env:
+ VCVARSALL: '$(vcvarsall)'
+ LIBFFI_SOURCE: '$(Build.SourcesDirectory)'
+ LIBFFI_OUT: '$(OutDir)'
+
+ - powershell: |
+ if ((gci *\*.dll).Count -lt 4) {
+ Write-Error "Did not generate enough DLL files"
+ }
+ if ((gci *\Include\ffi.h).Count -lt 4) {
+ Write-Error "Did not generate enough include files"
+ }
+ failOnStderr: true
+ workingDirectory: '$(OutDir)'
+ displayName: 'Verify files were created'
+
+ - publish: '$(OutDir)'
+ artifact: 'unsigned'
+ displayName: 'Publish unsigned build'
+
+- job: Sign_LibFFI
+ displayName: Sign LibFFI
+ dependsOn: Build_LibFFI
+ pool:
+ name: 'Windows Release'
+
+ workspace:
+ clean: all
+
+ steps:
+ - checkout: none
+ - download: current
+ artifact: unsigned
+
+ - template: ./find-tools.yml
+
+ - powershell: |
+ signtool sign /q /a `
+ /n "Python Software Foundation" `
+ /fd sha256 `
+ /tr http://timestamp.digicert.com/ /td sha256 `
+ /d "LibFFI for Python" `
+ (gci "$(Pipeline.Workspace)\unsigned\*.dll" -r)
+ displayName: 'Sign files'
+
+ - publish: '$(Pipeline.Workspace)\unsigned'
+ artifact: 'libffi'
+ displayName: 'Publish libffi'
--- /dev/null
+steps:
+- checkout: self
+ clean: true
+ fetchDepth: 5
+
+- script: ./configure --with-pydebug --with-openssl=/usr/local/opt/openssl --prefix=/opt/python-azdev
+ displayName: 'Configure CPython (debug)'
+
+- script: make -j4
+ displayName: 'Build CPython'
+
+- script: make pythoninfo
+ displayName: 'Display build info'
+
+- script: make buildbottest TESTOPTS="-j4 -uall,-cpu --junit-xml=$(build.binariesDirectory)/test-results.xml"
+ displayName: 'Tests'
+ continueOnError: true
+ timeoutInMinutes: 30
+
+- task: PublishTestResults@2
+ displayName: 'Publish Test Results'
+ inputs:
+ testResultsFiles: '$(build.binariesDirectory)/test-results.xml'
+ mergeTestResults: true
+ testRunTitle: $(testRunTitle)
+ platform: $(testRunPlatform)
+ condition: succeededOrFailed()
--- /dev/null
+name: $(SourceTag)_$(Date:yyyyMMdd)$(Rev:.rr)
+
+variables:
+ IntDir: '$(Build.BinariesDirectory)'
+ OutDir: '$(Build.ArtifactStagingDirectory)'
+
+ # MUST BE SET AT QUEUE TIME
+ # SigningCertificate: 'Python Software Foundation'
+ # SourcesRepo: 'https://github.com/python/cpython-source-deps'
+ # SourceTag: 'openssl-1.1.1k'
+
+jobs:
+- job: Build_SSL
+ displayName: OpenSSL
+ pool:
+ name: 'Windows Release'
+ #vmImage: windows-latest
+
+ strategy:
+ matrix:
+ win32:
+ Platform: 'win32'
+ VCPlatform: 'amd64_x86'
+ OpenSSLPlatform: 'VC-WIN32 no-asm'
+ amd64:
+ Platform: 'amd64'
+ VCPlatform: 'amd64'
+ OpenSSLPlatform: 'VC-WIN64A-masm'
+ arm32:
+ Platform: 'arm32'
+ VCPlatform: 'amd64_arm'
+ OpenSSLPlatform: 'VC-WIN32-ARM'
+ arm64:
+ Platform: 'arm64'
+ VCPlatform: 'amd64_arm64'
+ OpenSSLPlatform: 'VC-WIN64-ARM'
+
+ workspace:
+ clean: all
+
+ steps:
+ - checkout: none
+
+ - template: ./find-tools.yml
+
+ - powershell: |
+ git clone $(SourcesRepo) -b $(SourceTag) --depth 1 .
+ displayName: 'Check out OpenSSL sources'
+
+ - powershell: |
+ $f = gi ms\uplink.c
+ $c1 = gc $f
+ $c2 = $c1 -replace '\(\(h = GetModuleHandle\(NULL\)\) == NULL\)', '((h = GetModuleHandleA("_ssl.pyd")) == NULL) if ((h = GetModuleHandleA("_ssl_d.pyd")) == NULL) if ((h = GetModuleHandle(NULL)) == NULL /*patched*/)'
+ if ($c2 -ne $c1) {
+ $c2 | Out-File $f -Encoding ASCII
+ } else {
+ Write-Host '##warning Failed to patch uplink.c'
+ }
+ displayName: 'Apply uplink.c patch'
+
+ - script: |
+ call "$(vcvarsall)" $(VCPlatform)
+ perl "$(Build.SourcesDirectory)\Configure" $(OpenSSLPlatform)
+ nmake
+ workingDirectory: '$(IntDir)'
+ displayName: 'Build OpenSSL'
+
+ - script: |
+ call "$(vcvarsall)" $(VCPlatform)
+ signtool sign /q /a /n "$(SigningCertificate)" /fd sha256 /tr http://timestamp.digicert.com/ /td sha256 /d "OpenSSL for Python" *.dll
+ workingDirectory: '$(IntDir)'
+ displayName: 'Sign OpenSSL Build'
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ - task: CopyFiles@2
+ displayName: 'Copy built libraries for upload'
+ inputs:
+ SourceFolder: '$(IntDir)'
+ Contents: |
+ lib*.dll
+ lib*.pdb
+ lib*.lib
+ include\openssl\*.h
+ TargetFolder: '$(OutDir)'
+
+ - task: CopyFiles@2
+ displayName: 'Copy header files for upload'
+ inputs:
+ SourceFolder: '$(Build.SourcesDirectory)'
+ Contents: |
+ include\openssl\*
+ TargetFolder: '$(OutDir)'
+
+ - task: CopyFiles@2
+ displayName: 'Copy applink files for upload'
+ inputs:
+ SourceFolder: '$(Build.SourcesDirectory)\ms'
+ Contents: applink.c
+ TargetFolder: '$(OutDir)\include'
+
+ - task: CopyFiles@2
+ displayName: 'Copy LICENSE for upload'
+ inputs:
+ SourceFolder: '$(Build.SourcesDirectory)'
+ Contents: LICENSE
+ TargetFolder: '$(OutDir)'
+
+ - publish: '$(OutDir)'
+ artifact: '$(Platform)'
+ displayName: 'Publishing $(Platform)'
--- /dev/null
+#!/bin/sh
+apt-get update
+
+apt-get -yq install \
+ build-essential \
+ zlib1g-dev \
+ libbz2-dev \
+ liblzma-dev \
+ libncurses5-dev \
+ libreadline6-dev \
+ libsqlite3-dev \
+ libssl-dev \
+ libgdbm-dev \
+ tk-dev \
+ lzma \
+ lzma-dev \
+ liblzma-dev \
+ libffi-dev \
+ uuid-dev \
+ xvfb
+
+if [ ! -z "$1" ]
+then
+ echo ##vso[task.prependpath]$PWD/multissl/openssl/$1
+ echo ##vso[task.setvariable variable=OPENSSL_DIR]$PWD/multissl/openssl/$1
+ python3 Tools/ssl/multissltests.py --steps=library --base-directory $PWD/multissl --openssl $1 --system Linux
+fi
--- /dev/null
+parameters:
+ coverage: false
+ sudo_dependencies: sudo
+ dependencies: apt
+ patchcheck: true
+ xvfb: true
+
+steps:
+- checkout: self
+ clean: true
+ fetchDepth: 5
+
+# Work around a known issue affecting Ubuntu VMs on Pipelines
+- script: sudo setfacl -Rb /home/vsts
+ displayName: 'Workaround ACL issue'
+
+- script: ${{ parameters.sudo_dependencies }} ./.azure-pipelines/posix-deps-${{ parameters.dependencies }}.sh $(openssl_version)
+ displayName: 'Install dependencies'
+
+- script: ./configure --with-pydebug
+ displayName: 'Configure CPython (debug)'
+
+- script: make -j4
+ displayName: 'Build CPython'
+
+- ${{ if eq(parameters.coverage, 'true') }}:
+ - script: ./python -m venv venv && ./venv/bin/python -m pip install -U coverage
+ displayName: 'Set up virtual environment'
+
+ - script: ./venv/bin/python -m test.pythoninfo
+ displayName: 'Display build info'
+
+ - script: |
+ $COMMAND -m coverage run --pylib -m test \
+ --fail-env-changed \
+ -uall,-cpu \
+ --junit-xml=$(build.binariesDirectory)/test-results.xml \
+ -x test_multiprocessing_fork \
+ -x test_multiprocessing_forkserver \
+ -x test_multiprocessing_spawn \
+ -x test_concurrent_futures
+ displayName: 'Tests with coverage'
+ env:
+ ${{ if eq(parameters.xvfb, 'true') }}:
+ COMMAND: xvfb-run ./venv/bin/python
+ ${{ if ne(parameters.xvfb, 'true') }}:
+ COMMAND: ./venv/bin/python
+
+ - script: ./venv/bin/python -m coverage xml
+ displayName: 'Generate coverage.xml'
+
+ - script: source ./venv/bin/activate && bash <(curl -s https://codecov.io/bash) -y .github/codecov.yml
+ displayName: 'Publish code coverage results'
+
+
+- ${{ if ne(parameters.coverage, 'true') }}:
+ - script: make pythoninfo
+ displayName: 'Display build info'
+
+ - script: $COMMAND buildbottest TESTOPTS="-j4 -uall,-cpu --junit-xml=$(build.binariesDirectory)/test-results.xml"
+ displayName: 'Tests'
+ env:
+ ${{ if eq(parameters.xvfb, 'true') }}:
+ COMMAND: xvfb-run make
+ ${{ if ne(parameters.xvfb, 'true') }}:
+ COMMAND: make
+
+- ${{ if eq(parameters.patchcheck, 'true') }}:
+ - script: |
+ git fetch origin
+ ./python Tools/scripts/patchcheck.py --ci true
+ displayName: 'Run patchcheck.py'
+ condition: and(succeeded(), eq(variables['Build.Reason'], 'PullRequest'))
+
+
+- task: PublishTestResults@2
+ displayName: 'Publish Test Results'
+ inputs:
+ testResultsFiles: '$(build.binariesDirectory)/test-results.xml'
+ mergeTestResults: true
+ testRunTitle: $(testRunTitle)
+ platform: $(testRunPlatform)
+ condition: succeededOrFailed()
--- /dev/null
+variables:
+ coverage: false
+
+pr: ['main', '3.11', '3.10', '3.9', '3.8', '3.7']
+
+jobs:
+- job: Prebuild
+ displayName: Pre-build checks
+
+ pool:
+ vmImage: ubuntu-20.04
+
+ steps:
+ - template: ./prebuild-checks.yml
+
+
+- job: Docs_PR
+ displayName: Docs PR
+ dependsOn: Prebuild
+ condition: and(succeeded(), eq(dependencies.Prebuild.outputs['docs.run'], 'true'))
+
+ pool:
+ vmImage: ubuntu-20.04
+
+ steps:
+ - template: ./docs-steps.yml
+
+
+- job: macOS_PR_Tests
+ displayName: macOS PR Tests
+ dependsOn: Prebuild
+ #condition: and(succeeded(), eq(dependencies.Prebuild.outputs['tests.run'], 'true'))
+ # bpo-39837: macOS tests on Azure Pipelines are disabled
+ condition: false
+
+ variables:
+ testRunTitle: '$(system.pullRequest.TargetBranch)-macos'
+ testRunPlatform: macos
+
+ pool:
+ vmImage: macos-10.15
+
+ steps:
+ - template: ./macos-steps.yml
+ parameters:
+ targetBranch: $(System.PullRequest.TargetBranch)
+
+
+- job: Ubuntu_PR_Tests
+ displayName: Ubuntu PR Tests
+ dependsOn: Prebuild
+ condition: and(succeeded(), eq(dependencies.Prebuild.outputs['tests.run'], 'true'))
+
+ pool:
+ vmImage: ubuntu-20.04
+
+ variables:
+ testRunTitle: '$(system.pullRequest.TargetBranch)-linux'
+ testRunPlatform: linux
+ openssl_version: 1.1.1q
+
+ steps:
+ - template: ./posix-steps.yml
+ parameters:
+ dependencies: apt
+
+
+- job: Ubuntu_Coverage_PR_Tests
+ displayName: Ubuntu PR Tests (coverage)
+ dependsOn: Prebuild
+ condition: |
+ and(
+ and(
+ succeeded(),
+ eq(variables['coverage'], 'true')
+ ),
+ eq(dependencies.Prebuild.outputs['tests.run'], 'true')
+ )
+
+ pool:
+ vmImage: ubuntu-20.04
+
+ variables:
+ testRunTitle: '$(Build.SourceBranchName)-linux-coverage'
+ testRunPlatform: linux-coverage
+ openssl_version: 1.1.1q
+
+ steps:
+ - template: ./posix-steps.yml
+ parameters:
+ dependencies: apt
+ coverage: true
+
+
+- job: Windows_PR_Tests
+ displayName: Windows PR Tests
+ dependsOn: Prebuild
+ condition: and(succeeded(), eq(dependencies.Prebuild.outputs['tests.run'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ strategy:
+ matrix:
+ win32:
+ arch: win32
+ buildOpt: '-p Win32'
+ testRunTitle: '$(System.PullRequest.TargetBranch)-win32'
+ testRunPlatform: win32
+ win64:
+ arch: amd64
+ buildOpt: '-p x64'
+ testRunTitle: '$(System.PullRequest.TargetBranch)-win64'
+ testRunPlatform: win64
+ winarm64:
+ arch: arm64
+ buildOpt: '-p arm64'
+ maxParallel: 4
+
+ steps:
+ - template: ./windows-steps.yml
+ parameters:
+ targetBranch: $(System.PullRequest.TargetBranch)
--- /dev/null
+steps:
+- checkout: self
+ fetchDepth: 5
+
+- script: echo "##vso[task.setvariable variable=diffTarget]HEAD~1"
+ displayName: Set default diff target
+
+- script: |
+ git fetch -q origin $(System.PullRequest.TargetBranch)
+ echo "##vso[task.setvariable variable=diffTarget]HEAD \$(git merge-base HEAD FETCH_HEAD)"
+ displayName: Fetch comparison tree
+ condition: and(succeeded(), variables['System.PullRequest.TargetBranch'])
+
+- script: |
+ if ! git diff --name-only $(diffTarget) | grep -qE '(\.rst$|^Doc|^Misc)'
+ then
+ echo "No docs were updated: docs.run=false"
+ echo "##vso[task.setvariable variable=run;isOutput=true]false"
+ else
+ echo "Docs were updated: docs.run=true"
+ echo "##vso[task.setvariable variable=run;isOutput=true]true"
+ fi
+ displayName: Detect documentation changes
+ name: docs
+
+- script: |
+ if ! git diff --name-only $(diffTarget) | grep -qvE '(\.rst$|^Doc|^Misc)'
+ then
+ echo "Only docs were updated: tests.run=false"
+ echo "##vso[task.setvariable variable=run;isOutput=true]false"
+ else
+ echo "Code was updated: tests.run=true"
+ echo "##vso[task.setvariable variable=run;isOutput=true]true"
+ fi
+ displayName: Detect source changes
+ name: tests
--- /dev/null
+name: tcl$(TkSourceTag)_$(Date:yyyyMMdd)$(Rev:.rr)
+
+variables:
+ IntDir: '$(Build.BinariesDirectory)\obj'
+ ExternalsDir: '$(Build.BinariesDirectory)\externals'
+ OutDir: '$(Build.ArtifactStagingDirectory)'
+ Configuration: 'Release'
+
+ # MUST BE SET AT QUEUE TIME
+ # SigningCertificate: 'Python Software Foundation'
+ # SourcesRepo: 'https://github.com/python/cpython-source-deps'
+ # TclSourceTag: 'tcl-core-8.6.12.0'
+ # TkSourceTag: 'tk-8.6.12.0'
+ # TixSourceTag: 'tix-8.4.3.6'
+
+jobs:
+- job: Build_TclTk
+ displayName: 'Tcl/Tk'
+ pool:
+ name: 'Windows Release'
+ #vmImage: windows-latest
+
+ workspace:
+ clean: all
+
+ steps:
+ - template: ./find-tools.yml
+
+ - powershell: |
+ git clone $(SourcesRepo) -b $(TclSourceTag) --depth 1 "$(ExternalsDir)\$(TclSourceTag)"
+ displayName: 'Check out Tcl sources'
+
+ - powershell: |
+ git clone $(SourcesRepo) -b $(TkSourceTag) --depth 1 "$(ExternalsDir)\$(TkSourceTag)"
+ displayName: 'Check out Tk sources'
+
+ - powershell: |
+ git clone $(SourcesRepo) -b $(TixSourceTag) --depth 1 "$(ExternalsDir)\$(TixSourceTag)"
+ displayName: 'Check out Tix sources'
+
+ # This msbuild.rsp file will be used by the build to forcibly override these variables
+ - powershell: |
+ del -Force -EA 0 msbuild.rsp
+ "/p:IntDir=$(IntDir)\" >> msbuild.rsp
+ "/p:ExternalsDir=$(ExternalsDir)\" >> msbuild.rsp
+ "/p:tclDir=$(ExternalsDir)\$(TclSourceTag)\" >> msbuild.rsp
+ "/p:tkDir=$(ExternalsDir)\$(TkSourceTag)\" >> msbuild.rsp
+ "/p:tixDir=$(ExternalsDir)\$(TixSourceTag)\" >> msbuild.rsp
+ displayName: 'Generate msbuild.rsp'
+
+ - powershell: |
+ & "$(msbuild)" PCbuild\tcl.vcxproj "@msbuild.rsp" /p:Platform=Win32 /p:tcltkDir="$(OutDir)\win32"
+ & "$(msbuild)" PCbuild\tk.vcxproj "@msbuild.rsp" /p:Platform=Win32 /p:tcltkDir="$(OutDir)\win32"
+ & "$(msbuild)" PCbuild\tix.vcxproj "@msbuild.rsp" /p:Platform=Win32 /p:tcltkDir="$(OutDir)\win32"
+ displayName: 'Build for win32'
+
+ - powershell: |
+ & "$(msbuild)" PCbuild\tcl.vcxproj "@msbuild.rsp" /p:Platform=x64 /p:tcltkDir="$(OutDir)\amd64"
+ & "$(msbuild)" PCbuild\tk.vcxproj "@msbuild.rsp" /p:Platform=x64 /p:tcltkDir="$(OutDir)\amd64"
+ & "$(msbuild)" PCbuild\tix.vcxproj "@msbuild.rsp" /p:Platform=x64 /p:tcltkDir="$(OutDir)\amd64"
+ displayName: 'Build for amd64'
+
+ - powershell: |
+ & "$(msbuild)" PCbuild\tcl.vcxproj "@msbuild.rsp" /p:Platform=ARM64 /p:tcltkDir="$(OutDir)\arm64"
+ & "$(msbuild)" PCbuild\tk.vcxproj "@msbuild.rsp" /p:Platform=ARM64 /p:tcltkDir="$(OutDir)\arm64"
+ & "$(msbuild)" PCbuild\tix.vcxproj "@msbuild.rsp" /p:Platform=ARM64 /p:tcltkDir="$(OutDir)\arm64"
+ displayName: 'Build for arm64'
+
+ - publish: '$(OutDir)'
+ artifact: 'tcltk'
+ displayName: 'Publishing tcltk'
--- /dev/null
+parameters:
+ kind: nuget
+ extraOpts: --precompile
+ fulltest: false
+
+steps:
+- script: .\python.bat PC\layout -vv -s "$(Build.SourcesDirectory)" -b "$(Py_OutDir)\$(arch)" -t "$(Build.BinariesDirectory)\layout-tmp-${{ parameters.kind }}-$(arch)" --copy "$(Build.BinariesDirectory)\layout-${{ parameters.kind }}-$(arch)" ${{ parameters.extraOpts }} --preset-${{ parameters.kind }} --include-tests
+ displayName: Create ${{ parameters.kind }} layout
+
+- script: .\python.exe -m test.pythoninfo
+ workingDirectory: $(Build.BinariesDirectory)\layout-${{ parameters.kind }}-$(arch)
+ displayName: Show layout info (${{ parameters.kind }})
+
+- ${{ if eq(parameters.fulltest, 'true') }}:
+ - script: .\python.exe -m test -q -uall -u-cpu -rwW --slowest --timeout=1200 -j0 --junit-xml="$(Build.BinariesDirectory)\test-results-${{ parameters.kind }}.xml" --tempdir "$(Build.BinariesDirectory)\tmp-${{ parameters.kind }}-$(arch)"
+ workingDirectory: $(Build.BinariesDirectory)\layout-${{ parameters.kind }}-$(arch)
+ displayName: ${{ parameters.kind }} Tests
+ env:
+ PREFIX: $(Build.BinariesDirectory)\layout-${{ parameters.kind }}-$(arch)
+
+ - task: PublishTestResults@2
+ displayName: Publish ${{ parameters.kind }} Test Results
+ inputs:
+ testResultsFiles: $(Build.BinariesDirectory)\test-results-${{ parameters.kind }}.xml
+ mergeTestResults: true
+ testRunTitle: ${{ parameters.kind }}-$(testRunTitle)
+ platform: $(testRunPlatform)
+ condition: succeededOrFailed()
--- /dev/null
+name: Release_$(Build.SourceBranchName)_$(SourceTag)_$(Date:yyyyMMdd)$(Rev:.rr)
+
+parameters:
+- name: GitRemote
+ displayName: "Git remote"
+ type: string
+ default: python
+ values:
+ - 'python'
+ - 'pablogsal'
+ - 'ambv'
+ - '(Other)'
+- name: GitRemote_Other
+ displayName: "If Other, specify Git remote"
+ type: string
+ default: 'python'
+- name: SourceTag
+ displayName: "Git tag"
+ type: string
+ default: main
+- name: DoPublish
+ displayName: "Publish release"
+ type: boolean
+ default: false
+- name: SigningCertificate
+ displayName: "Code signing certificate"
+ type: string
+ default: 'Python Software Foundation'
+ values:
+ - 'Python Software Foundation'
+ - 'TestSign'
+ - 'Unsigned'
+- name: SigningDescription
+ displayName: "Signature description"
+ type: string
+ default: 'Built: $(Build.BuildNumber)'
+- name: DoARM64
+ displayName: "Publish ARM64 build"
+ type: boolean
+ default: true
+# Because there is no ARM64 Tcl/Tk pre-3.11, we need a separate option
+# to keep those builds working when the files are going to be absent.
+# Eventually when we stop releasing anything that old, we can drop this
+# argument (and make it implicitly always 'true')
+- name: ARM64TclTk
+ displayName: "Use Tcl/Tk for ARM64 (3.11 and later)"
+ type: boolean
+ default: true
+- name: DoPGO
+ displayName: "Run PGO"
+ type: boolean
+ default: true
+- name: DoCHM
+ displayName: "Produce compiled help document (pre-3.11)"
+ type: boolean
+ default: false
+- name: DoLayout
+ displayName: "Produce full layout artifact"
+ type: boolean
+ default: true
+- name: DoMSIX
+ displayName: "Produce Store packages"
+ type: boolean
+ default: true
+- name: DoNuget
+ displayName: "Produce Nuget packages"
+ type: boolean
+ default: true
+- name: DoEmbed
+ displayName: "Produce embeddable package"
+ type: boolean
+ default: true
+- name: DoMSI
+ displayName: "Produce EXE/MSI installer"
+ type: boolean
+ default: true
+- name: BuildToPublish
+ displayName: "Build number to publish (0 to skip)"
+ type: number
+ default: '0'
+
+variables:
+ __RealSigningCertificate: 'Python Software Foundation'
+ ${{ if ne(parameters.GitRemote, '(Other)') }}:
+ GitRemote: ${{ parameters.GitRemote }}
+ ${{ else }}:
+ GitRemote: ${{ parameters.GitRemote_Other }}
+ SourceTag: ${{ parameters.SourceTag }}
+ DoPGO: ${{ parameters.DoPGO }}
+ ${{ if ne(parameters.SigningCertificate, 'Unsigned') }}:
+ SigningCertificate: ${{ parameters.SigningCertificate }}
+ SigningDescription: ${{ parameters.SigningDescription }}
+ DoCHM: ${{ parameters.DoCHM }}
+ DoLayout: ${{ parameters.DoLayout }}
+ DoMSIX: ${{ parameters.DoMSIX }}
+ DoNuget: ${{ parameters.DoNuget }}
+ DoEmbed: ${{ parameters.DoEmbed }}
+ DoMSI: ${{ parameters.DoMSI }}
+ DoPublish: ${{ parameters.DoPublish }}
+ PublishARM64: ${{ parameters.DoARM64 }}
+# QUEUE TIME VARIABLES
+# PyDotOrgUsername: ''
+# PyDotOrgServer: ''
+
+trigger: none
+pr: none
+
+stages:
+- ${{ if eq(parameters.BuildToPublish, '0') }}:
+ - stage: Build
+ displayName: Build binaries
+ jobs:
+ - template: windows-release/stage-build.yml
+ parameters:
+ ARM64TclTk: ${{ parameters.ARM64TclTk }}
+
+ - stage: Sign
+ displayName: Sign binaries
+ dependsOn: Build
+ jobs:
+ - template: windows-release/stage-sign.yml
+
+ - stage: Layout
+ displayName: Generate layouts
+ dependsOn: Sign
+ jobs:
+ - template: windows-release/stage-layout-full.yml
+ parameters:
+ ARM64TclTk: ${{ parameters.ARM64TclTk }}
+ - template: windows-release/stage-layout-embed.yml
+ - template: windows-release/stage-layout-nuget.yml
+
+ - stage: Pack
+ dependsOn: Layout
+ jobs:
+ - template: windows-release/stage-pack-nuget.yml
+
+ - stage: Test
+ dependsOn: Pack
+ jobs:
+ - template: windows-release/stage-test-embed.yml
+ - template: windows-release/stage-test-nuget.yml
+
+ - ${{ if eq(parameters.DoMSIX, 'true') }}:
+ - stage: Layout_MSIX
+ displayName: Generate MSIX layouts
+ dependsOn: Sign
+ jobs:
+ - template: windows-release/stage-layout-msix.yml
+ parameters:
+ ARM64TclTk: ${{ parameters.ARM64TclTk }}
+
+ - stage: Pack_MSIX
+ displayName: Package MSIX
+ dependsOn: Layout_MSIX
+ jobs:
+ - template: windows-release/stage-pack-msix.yml
+
+ - ${{ if eq(parameters.DoMSI, 'true') }}:
+ - stage: Build_MSI
+ displayName: Build MSI installer
+ dependsOn: Sign
+ jobs:
+ - template: windows-release/stage-msi.yml
+ parameters:
+ ARM64TclTk: ${{ parameters.ARM64TclTk }}
+
+ - stage: Test_MSI
+ displayName: Test MSI installer
+ dependsOn: Build_MSI
+ jobs:
+ - template: windows-release/stage-test-msi.yml
+
+ - ${{ if eq(parameters.DoPublish, 'true') }}:
+ - ${{ if eq(parameters.DoMSI, 'true') }}:
+ - stage: PublishPyDotOrg
+ displayName: Publish to python.org
+ dependsOn: ['Test_MSI', 'Test']
+ jobs:
+ - template: windows-release/stage-publish-pythonorg.yml
+
+ - ${{ if eq(parameters.DoNuget, 'true') }}:
+ - stage: PublishNuget
+ displayName: Publish to nuget.org
+ ${{ if eq(parameters.DoMSI, 'true') }}:
+ dependsOn: ['Test_MSI', 'Test']
+ ${{ else }}:
+ dependsOn: 'Test'
+ jobs:
+ - template: windows-release/stage-publish-nugetorg.yml
+
+ - ${{ if eq(parameters.DoMSIX, 'true') }}:
+ - stage: PublishStore
+ displayName: Publish to Store
+ ${{ if eq(parameters.DoMSI, 'true') }}:
+ dependsOn: ['Test_MSI', 'Pack_MSIX']
+ ${{ else }}:
+ dependsOn: 'Pack_MSIX'
+ jobs:
+ - template: windows-release/stage-publish-store.yml
+
+- ${{ else }}:
+ - stage: PublishExisting
+ displayName: Publish existing build
+ dependsOn: []
+ jobs:
+ - ${{ if eq(parameters.DoMSI, 'true') }}:
+ - template: windows-release/stage-publish-pythonorg.yml
+ parameters:
+ BuildToPublish: ${{ parameters.BuildToPublish }}
+
+ - ${{ if eq(parameters.DoNuget, 'true') }}:
+ - template: windows-release/stage-publish-nugetorg.yml
+ parameters:
+ BuildToPublish: ${{ parameters.BuildToPublish }}
+
+ - ${{ if eq(parameters.DoMSIX, 'true') }}:
+ - template: windows-release/stage-publish-store.yml
+ parameters:
+ BuildToPublish: ${{ parameters.BuildToPublish }}
--- /dev/null
+parameters:
+ ShouldPGO: false
+
+steps:
+- template: ./checkout.yml
+
+- powershell: |
+ $d = (.\PCbuild\build.bat -V) | %{ if($_ -match '\s+(\w+):\s*(.+)\s*$') { @{$Matches[1] = $Matches[2];} }};
+ Write-Host "##vso[task.setvariable variable=VersionText]$($d.PythonVersion)"
+ Write-Host "##vso[task.setvariable variable=VersionNumber]$($d.PythonVersionNumber)"
+ Write-Host "##vso[task.setvariable variable=VersionHex]$($d.PythonVersionHex)"
+ Write-Host "##vso[task.setvariable variable=VersionUnique]$($d.PythonVersionUnique)"
+ Write-Host "##vso[build.addbuildtag]$($d.PythonVersion)"
+ Write-Host "##vso[build.addbuildtag]$($d.PythonVersion)-$(Name)"
+ displayName: 'Extract version numbers'
+
+- ${{ if eq(parameters.ShouldPGO, 'false') }}:
+ - powershell: |
+ $env:SigningCertificate = $null
+ .\PCbuild\build.bat -v -p $(Platform) -c $(Configuration)
+ displayName: 'Run build'
+ env:
+ IncludeUwp: true
+ Py_OutDir: '$(Build.BinariesDirectory)\bin'
+
+- ${{ if eq(parameters.ShouldPGO, 'true') }}:
+ - powershell: |
+ $env:SigningCertificate = $null
+ .\PCbuild\build.bat -v -p $(Platform) --pgo
+ displayName: 'Run build with PGO'
+ env:
+ IncludeUwp: true
+ Py_OutDir: '$(Build.BinariesDirectory)\bin'
+
+- powershell: |
+ $kitroot = (gp 'HKLM:\SOFTWARE\Microsoft\Windows Kits\Installed Roots\').KitsRoot10
+ $tool = (gci -r "$kitroot\Bin\*\x64\signtool.exe" | sort FullName -Desc | select -First 1)
+ if (-not $tool) {
+ throw "SDK is not available"
+ }
+ Write-Host "##vso[task.prependpath]$($tool.Directory)"
+ displayName: 'Add WinSDK tools to path'
+
+- powershell: |
+ $env:SigningCertificate = $null
+ $(_HostPython) PC\layout -vv -b "$(Build.BinariesDirectory)\bin" -t "$(Build.BinariesDirectory)\catalog" --catalog "${env:CAT}.cdf" --preset-default --arch $(Arch)
+ makecat "${env:CAT}.cdf"
+ del "${env:CAT}.cdf"
+ if (-not (Test-Path "${env:CAT}.cat")) {
+ throw "Failed to build catalog file"
+ }
+ displayName: 'Generate catalog'
+ env:
+ CAT: $(Build.BinariesDirectory)\bin\$(Arch)\python
+ PYTHON_HEXVERSION: $(VersionHex)
+
+- task: PublishPipelineArtifact@0
+ displayName: 'Publish binaries'
+ condition: and(succeeded(), not(and(eq(variables['Configuration'], 'Release'), variables['SigningCertificate'])))
+ inputs:
+ targetPath: '$(Build.BinariesDirectory)\bin\$(Arch)'
+ artifactName: bin_$(Name)
+
+- task: PublishPipelineArtifact@0
+ displayName: 'Publish binaries for signing'
+ condition: and(succeeded(), and(eq(variables['Configuration'], 'Release'), variables['SigningCertificate']))
+ inputs:
+ targetPath: '$(Build.BinariesDirectory)\bin\$(Arch)'
+ artifactName: unsigned_bin_$(Name)
+
+- task: CopyFiles@2
+ displayName: 'Layout Artifact: symbols'
+ inputs:
+ sourceFolder: $(Build.BinariesDirectory)\bin\$(Arch)
+ targetFolder: $(Build.ArtifactStagingDirectory)\symbols\$(Name)
+ flatten: true
+ contents: |
+ **\*.pdb
+
+- task: PublishBuildArtifacts@1
+ displayName: 'Publish Artifact: symbols'
+ inputs:
+ PathToPublish: '$(Build.ArtifactStagingDirectory)\symbols'
+ ArtifactName: symbols
--- /dev/null
+parameters:
+ depth: 3
+
+steps:
+- checkout: none
+
+- script: git clone --progress -v --depth ${{ parameters.depth }} --branch $(SourceTag) --single-branch https://github.com/$(GitRemote)/cpython.git .
+ displayName: 'git clone ($(GitRemote)/$(SourceTag))'
+ condition: and(succeeded(), and(variables['GitRemote'], variables['SourceTag']))
+
+- script: git clone --progress -v --depth ${{ parameters.depth }} --branch $(SourceTag) --single-branch $(Build.Repository.Uri) .
+ displayName: 'git clone (<default>/$(SourceTag))'
+ condition: and(succeeded(), and(not(variables['GitRemote']), variables['SourceTag']))
+
+- script: git clone --progress -v --depth ${{ parameters.depth }} --branch $(Build.SourceBranchName) --single-branch https://github.com/$(GitRemote)/cpython.git .
+ displayName: 'git clone ($(GitRemote)/<default>)'
+ condition: and(succeeded(), and(variables['GitRemote'], not(variables['SourceTag'])))
+
+- script: git clone --progress -v --depth ${{ parameters.depth }} --branch $(Build.SourceBranchName) --single-branch $(Build.Repository.Uri) .
+ displayName: 'git clone'
+ condition: and(succeeded(), and(not(variables['GitRemote']), not(variables['SourceTag'])))
--- /dev/null
+# Locate the Windows SDK and add its binaries directory to PATH
+#
+# `toolname` can be overridden to use a different marker file.
+
+parameters:
+ toolname: signtool.exe
+
+steps:
+ - powershell: |
+ $kitroot = (gp 'HKLM:\SOFTWARE\Microsoft\Windows Kits\Installed Roots\').KitsRoot10
+ $tool = (gci -r "$kitroot\Bin\*\${{ parameters.toolname }}" | sort FullName -Desc | select -First 1)
+ if (-not $tool) {
+ throw "SDK is not available"
+ }
+ Write-Host "##vso[task.prependpath]$($tool.Directory)"
+ Write-Host "Adding $($tool.Directory) to PATH"
+ displayName: 'Add WinSDK tools to path'
--- /dev/null
+steps:
+- task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_$(HostArch)'
+ condition: and(succeeded(), variables['HostArch'])
+ inputs:
+ artifactName: bin_$(HostArch)
+ targetPath: $(Build.BinariesDirectory)\bin_$(HostArch)
+
+- powershell: >
+ Write-Host (
+ '##vso[task.setvariable variable=LayoutCmd]&
+ "$(Python)"
+ "{1}\PC\layout"
+ -vv
+ --source "{1}"
+ --build "{0}\bin"
+ --arch "$(Name)"
+ --temp "{0}\layout-temp"
+ --include-cat "{0}\bin\python.cat"
+ --doc-build "{0}\doc"'
+ -f ("$(Build.BinariesDirectory)", "$(Build.SourcesDirectory)")
+ )
+ displayName: 'Set LayoutCmd'
--- /dev/null
+parameters:
+ DllToolOpt: -m i386:x86-64
+ #DllToolOpt: -m i386 --as-flags=--32
+
+steps:
+- powershell: |
+ git clone https://github.com/python/cpython-bin-deps --branch binutils --single-branch --depth 1 --progress -v "binutils"
+ gci "bin\$(Arch)\python*.dll" | %{
+ & "binutils\gendef.exe" $_ | Out-File -Encoding ascii tmp.def
+ & "binutils\dlltool.exe" --dllname $($_.BaseName).dll --def tmp.def --output-lib "$($_.Directory)\lib$($_.BaseName).a" ${{ parameters.DllToolOpt }}
+ }
+ displayName: 'Generate MinGW import library'
+ workingDirectory: $(Build.BinariesDirectory)
--- /dev/null
+parameters:
+ ARM64TclTk: true
+
+steps:
+ - template: ./checkout.yml
+
+ - powershell: |
+ $d = (.\PCbuild\build.bat -V) | %{ if($_ -match '\s+(\w+):\s*(.+)\s*$') { @{$Matches[1] = $Matches[2];} }};
+ Write-Host "##vso[task.setvariable variable=SigningDescription]Python $($d.PythonVersion)"
+ displayName: 'Update signing description'
+ condition: and(succeeded(), not(variables['SigningDescription']))
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: doc'
+ inputs:
+ artifactName: doc
+ targetPath: $(Build.BinariesDirectory)\doc
+
+ - task: CopyFiles@2
+ displayName: 'Merge documentation files'
+ inputs:
+ sourceFolder: $(Build.BinariesDirectory)\doc
+ targetFolder: $(Build.SourcesDirectory)\Doc\build
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_win32'
+ inputs:
+ artifactName: bin_win32
+ targetPath: $(Build.BinariesDirectory)\win32
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_win32_d'
+ inputs:
+ artifactName: bin_win32_d
+ targetPath: $(Build.BinariesDirectory)\win32
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_amd64'
+ inputs:
+ artifactName: bin_amd64
+ targetPath: $(Build.BinariesDirectory)\amd64
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_amd64_d'
+ inputs:
+ artifactName: bin_amd64_d
+ targetPath: $(Build.BinariesDirectory)\amd64
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_arm64'
+ condition: and(succeeded(), eq(variables['PublishARM64'], 'true'))
+ inputs:
+ artifactName: bin_arm64
+ targetPath: $(Build.BinariesDirectory)\arm64
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_arm64_d'
+ condition: and(succeeded(), eq(variables['PublishARM64'], 'true'))
+ inputs:
+ artifactName: bin_arm64_d
+ targetPath: $(Build.BinariesDirectory)\arm64
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: tcltk_lib_win32'
+ inputs:
+ artifactName: tcltk_lib_win32
+ targetPath: $(Build.BinariesDirectory)\tcltk_lib_win32
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: tcltk_lib_amd64'
+ inputs:
+ artifactName: tcltk_lib_amd64
+ targetPath: $(Build.BinariesDirectory)\tcltk_lib_amd64
+
+ - ${{ if eq(parameters.ARM64TclTk, true) }}:
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: tcltk_lib_arm64'
+ condition: and(succeeded(), eq(variables['PublishARM64'], 'true'))
+ inputs:
+ artifactName: tcltk_lib_arm64
+ targetPath: $(Build.BinariesDirectory)\tcltk_lib_arm64
+
+ - powershell: |
+ copy $(Build.BinariesDirectory)\amd64\Activate.ps1 Lib\venv\scripts\common\Activate.ps1 -Force
+ displayName: 'Copy signed files into sources'
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ - script: |
+ call Tools\msi\get_externals.bat
+ call PCbuild\find_python.bat
+ echo ##vso[task.setvariable variable=PYTHON]%PYTHON%
+ call PCbuild/find_msbuild.bat
+ echo ##vso[task.setvariable variable=MSBUILD]%MSBUILD%
+ displayName: 'Get external dependencies'
+
+ - script: |
+ %PYTHON% -m pip install blurb
+ %PYTHON% -m blurb merge -f Misc\NEWS
+ displayName: 'Merge NEWS file'
+
+ - script: |
+ %MSBUILD% Tools\msi\launcher\launcher.wixproj
+ displayName: 'Build launcher installer'
+ env:
+ Platform: x86
+ Py_OutDir: $(Build.BinariesDirectory)
+
+ - script: |
+ %MSBUILD% Tools\msi\bundle\releaselocal.wixproj /t:Rebuild /p:RebuildAll=true
+ displayName: 'Build win32 installer'
+ env:
+ Platform: x86
+ Py_OutDir: $(Build.BinariesDirectory)
+ PYTHON: $(Build.BinariesDirectory)\win32\python.exe
+ PythonForBuild: $(Build.BinariesDirectory)\win32\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ TclTkLibraryDir: $(Build.BinariesDirectory)\tcltk_lib_win32
+ BuildForRelease: true
+
+ - script: |
+ %MSBUILD% Tools\msi\bundle\releaselocal.wixproj /t:Rebuild /p:RebuildAll=true
+ displayName: 'Build amd64 installer'
+ env:
+ Platform: x64
+ Py_OutDir: $(Build.BinariesDirectory)
+ PYTHON: $(Build.BinariesDirectory)\amd64\python.exe
+ PythonForBuild: $(Build.BinariesDirectory)\amd64\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ TclTkLibraryDir: $(Build.BinariesDirectory)\tcltk_lib_amd64
+ BuildForRelease: true
+
+ - script: |
+ %MSBUILD% Tools\msi\bundle\releaselocal.wixproj /t:Rebuild /p:RebuildAll=true
+ displayName: 'Build arm64 installer'
+ condition: and(succeeded(), eq(variables['PublishARM64'], 'true'))
+ env:
+ Platform: ARM64
+ Py_OutDir: $(Build.BinariesDirectory)
+ PYTHON: $(Build.BinariesDirectory)\win32\python.exe
+ PythonForBuild: $(Build.BinariesDirectory)\win32\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ BuildForRelease: true
+ ${{ if eq(parameters.ARM64TclTk, true) }}:
+ TclTkLibraryDir: $(Build.BinariesDirectory)\tcltk_lib_arm64
+
+ - task: CopyFiles@2
+ displayName: 'Assemble artifact: msi (win32)'
+ inputs:
+ sourceFolder: $(Build.BinariesDirectory)\win32\en-us
+ targetFolder: $(Build.ArtifactStagingDirectory)\msi\win32
+ contents: |
+ *.msi
+ *.cab
+ *.exe
+
+ - task: CopyFiles@2
+ displayName: 'Assemble artifact: msi (amd64)'
+ inputs:
+ sourceFolder: $(Build.BinariesDirectory)\amd64\en-us
+ targetFolder: $(Build.ArtifactStagingDirectory)\msi\amd64
+ contents: |
+ *.msi
+ *.cab
+ *.exe
+
+ - task: CopyFiles@2
+ displayName: 'Assemble artifact: msi (arm64)'
+ condition: and(succeeded(), eq(variables['PublishARM64'], 'true'))
+ inputs:
+ sourceFolder: $(Build.BinariesDirectory)\arm64\en-us
+ targetFolder: $(Build.ArtifactStagingDirectory)\msi\arm64
+ contents: |
+ *.msi
+ *.cab
+ *.exe
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish MSI'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\msi'
+ artifactName: msi
--- /dev/null
+parameters:
+ ARM64TclTk: true
+
+jobs:
+- job: Build_Docs
+ displayName: Docs build
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ steps:
+ - template: ./checkout.yml
+
+ - script: Doc\make.bat html
+ displayName: 'Build HTML docs'
+ env:
+ BUILDDIR: $(Build.BinariesDirectory)\Doc
+
+ - script: Doc\make.bat htmlhelp
+ displayName: 'Build CHM docs'
+ condition: and(succeeded(), eq(variables['DoCHM'], 'true'))
+ env:
+ BUILDDIR: $(Build.BinariesDirectory)\Doc
+
+ - task: CopyFiles@2
+ displayName: 'Assemble artifact: Doc'
+ inputs:
+ sourceFolder: $(Build.BinariesDirectory)\Doc
+ targetFolder: $(Build.ArtifactStagingDirectory)\Doc
+ contents: |
+ html\**\*
+ htmlhelp\*.chm
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish artifact: doc'
+ inputs:
+ targetPath: $(Build.ArtifactStagingDirectory)\Doc
+ artifactName: doc
+
+
+- job: Build_Python
+ displayName: Python build
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ win32:
+ Name: win32
+ Arch: win32
+ Platform: x86
+ Configuration: Release
+ _HostPython: .\python
+ win32_d:
+ Name: win32_d
+ Arch: win32
+ Platform: x86
+ Configuration: Debug
+ _HostPython: .\python
+ amd64_d:
+ Name: amd64_d
+ Arch: amd64
+ Platform: x64
+ Configuration: Debug
+ _HostPython: .\python
+ arm64:
+ Name: arm64
+ Arch: arm64
+ Platform: ARM64
+ Configuration: Release
+ _HostPython: python
+ arm64_d:
+ Name: arm64_d
+ Arch: arm64
+ Platform: ARM64
+ Configuration: Debug
+ _HostPython: python
+
+ steps:
+ - template: ./build-steps.yml
+
+- job: Build_Python_NonPGO
+ displayName: Python non-PGO build
+ condition: and(succeeded(), ne(variables['DoPGO'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ amd64:
+ Name: amd64
+ Arch: amd64
+ Platform: x64
+ Configuration: Release
+ _HostPython: .\python
+
+ steps:
+ - template: ./build-steps.yml
+
+
+- job: Build_Python_PGO
+ displayName: Python PGO build
+ condition: and(succeeded(), eq(variables['DoPGO'], 'true'))
+
+ # Allow up to five hours for PGO
+ timeoutInMinutes: 300
+
+ pool:
+ name: 'Windows Release'
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ amd64:
+ Name: amd64
+ Arch: amd64
+ Platform: x64
+ Configuration: Release
+ _HostPython: .\python
+
+ steps:
+ - template: ./build-steps.yml
+ parameters:
+ ShouldPGO: true
+
+
+- job: TclTk_Lib
+ displayName: Publish Tcl/Tk Library
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ steps:
+ - template: ./checkout.yml
+
+ - script: PCbuild\get_externals.bat --no-openssl --no-libffi
+ displayName: 'Get external dependencies'
+
+ - task: MSBuild@1
+ displayName: 'Copy Tcl/Tk lib for publish'
+ inputs:
+ solution: PCbuild\tcltk.props
+ platform: x86
+ msbuildArguments: /t:CopyTclTkLib /p:OutDir="$(Build.ArtifactStagingDirectory)\tcl_win32"
+
+ - task: MSBuild@1
+ displayName: 'Copy Tcl/Tk lib for publish'
+ inputs:
+ solution: PCbuild\tcltk.props
+ platform: x64
+ msbuildArguments: /t:CopyTclTkLib /p:OutDir="$(Build.ArtifactStagingDirectory)\tcl_amd64"
+
+ - ${{ if eq(parameters.ARM64TclTk, true) }}:
+ - task: MSBuild@1
+ displayName: 'Copy Tcl/Tk lib for publish'
+ inputs:
+ solution: PCbuild\tcltk.props
+ platform: ARM64
+ msbuildArguments: /t:CopyTclTkLib /p:OutDir="$(Build.ArtifactStagingDirectory)\tcl_arm64"
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish artifact: tcltk_lib_win32'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\tcl_win32'
+ artifactName: tcltk_lib_win32
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish artifact: tcltk_lib_amd64'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\tcl_amd64'
+ artifactName: tcltk_lib_amd64
+
+ - ${{ if eq(parameters.ARM64TclTk, true) }}:
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish artifact: tcltk_lib_arm64'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\tcl_arm64'
+ artifactName: tcltk_lib_arm64
--- /dev/null
+jobs:
+- job: Make_Embed_Layout
+ displayName: Make embeddable layout
+ condition: and(succeeded(), eq(variables['DoEmbed'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ win32:
+ Name: win32
+ Python: $(Build.BinariesDirectory)\bin\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ amd64:
+ Name: amd64
+ Python: $(Build.BinariesDirectory)\bin\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ arm64:
+ Name: arm64
+ HostArch: amd64
+ Python: $(Build.BinariesDirectory)\bin_amd64\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+
+ steps:
+ - template: ./checkout.yml
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_$(Name)'
+ inputs:
+ artifactName: bin_$(Name)
+ targetPath: $(Build.BinariesDirectory)\bin
+
+ - template: ./layout-command.yml
+
+ - powershell: |
+ $d = (.\PCbuild\build.bat -V) | %{ if($_ -match '\s+(\w+):\s*(.+)\s*$') { @{$Matches[1] = $Matches[2];} }};
+ Write-Host "##vso[task.setvariable variable=VersionText]$($d.PythonVersion)"
+ displayName: 'Extract version numbers'
+
+ - powershell: >
+ $(LayoutCmd)
+ --copy "$(Build.ArtifactStagingDirectory)\layout"
+ --zip "$(Build.ArtifactStagingDirectory)\embed\python-$(VersionText)-embed-$(Name).zip"
+ --preset-embed
+ displayName: 'Generate embeddable layout'
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish Artifact: layout_embed_$(Name)'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\layout'
+ artifactName: layout_embed_$(Name)
+
+ - task: PublishBuildArtifacts@1
+ displayName: 'Publish Artifact: embed'
+ inputs:
+ PathtoPublish: '$(Build.ArtifactStagingDirectory)\embed'
+ ArtifactName: embed
--- /dev/null
+parameters:
+ ARM64TclTk: true
+
+jobs:
+- job: Make_Layouts
+ displayName: Make layouts
+ condition: and(succeeded(), eq(variables['DoLayout'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ win32:
+ Name: win32
+ Python: $(Build.BinariesDirectory)\bin\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ TclLibrary: $(Build.BinariesDirectory)\tcltk_lib\tcl8
+ amd64:
+ Name: amd64
+ Python: $(Build.BinariesDirectory)\bin\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ TclLibrary: $(Build.BinariesDirectory)\tcltk_lib\tcl8
+ arm64:
+ Name: arm64
+ HostArch: amd64
+ Python: $(Build.BinariesDirectory)\bin_amd64\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ ${{ if eq(parameters.ARM64TclTk, true) }}:
+ TclLibrary: $(Build.BinariesDirectory)\tcltk_lib\tcl8
+
+ steps:
+ - template: ./checkout.yml
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_$(Name)'
+ inputs:
+ artifactName: bin_$(Name)
+ targetPath: $(Build.BinariesDirectory)\bin
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_$(Name)_d'
+ inputs:
+ artifactName: bin_$(Name)_d
+ targetPath: $(Build.BinariesDirectory)\bin
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: doc'
+ inputs:
+ artifactName: doc
+ targetPath: $(Build.BinariesDirectory)\doc
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: tcltk_lib_$(Name)'
+ condition: and(succeeded(), variables['TclLibrary'])
+ inputs:
+ artifactName: tcltk_lib_$(Name)
+ targetPath: $(Build.BinariesDirectory)\tcltk_lib
+
+ - powershell: |
+ copy "$(Build.BinariesDirectory)\bin\Activate.ps1" Lib\venv\scripts\common\Activate.ps1 -Force
+ displayName: 'Copy signed files into sources'
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ - template: ./layout-command.yml
+
+ - powershell: |
+ $(LayoutCmd) --copy "$(Build.ArtifactStagingDirectory)\layout" --preset-default
+ displayName: 'Generate full layout'
+ env:
+ TCL_LIBRARY: $(TclLibrary)
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish Artifact: layout_full_$(Name)'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\layout'
+ artifactName: layout_full_$(Name)
--- /dev/null
+parameters:
+ ARM64TclTk: true
+
+jobs:
+- job: Make_MSIX_Layout
+ displayName: Make MSIX layout
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ #win32:
+ # Name: win32
+ # Python: $(Build.BinariesDirectory)\bin\python.exe
+ # PYTHONHOME: $(Build.SourcesDirectory)
+ # TclLibrary: $(Build.BinariesDirectory)\tcltk_lib\tcl8
+ amd64:
+ Name: amd64
+ Python: $(Build.BinariesDirectory)\bin\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ TclLibrary: $(Build.BinariesDirectory)\tcltk_lib\tcl8
+ arm64:
+ Name: arm64
+ HostArch: amd64
+ Python: $(Build.BinariesDirectory)\bin_amd64\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ ${{ if eq(parameters.ARM64TclTk, true) }}:
+ TclLibrary: $(Build.BinariesDirectory)\tcltk_lib\tcl8
+
+ steps:
+ - template: ./checkout.yml
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_$(Name)'
+ inputs:
+ artifactName: bin_$(Name)
+ targetPath: $(Build.BinariesDirectory)\bin
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_$(Name)_d'
+ inputs:
+ artifactName: bin_$(Name)_d
+ targetPath: $(Build.BinariesDirectory)\bin
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: tcltk_lib_$(Name)'
+ condition: and(succeeded(), variables['TclLibrary'])
+ inputs:
+ artifactName: tcltk_lib_$(Name)
+ targetPath: $(Build.BinariesDirectory)\tcltk_lib
+
+ - powershell: |
+ copy "$(Build.BinariesDirectory)\bin\Activate.ps1" Lib\venv\scripts\common\Activate.ps1 -Force
+ displayName: 'Copy signed files into sources'
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ - template: ./layout-command.yml
+
+ - powershell: |
+ Remove-Item "$(Build.ArtifactStagingDirectory)\appx-store" -Recurse -Force -EA 0
+ $(LayoutCmd) --copy "$(Build.ArtifactStagingDirectory)\appx-store" --preset-appx --precompile
+ displayName: 'Generate store APPX layout'
+ env:
+ TCL_LIBRARY: $(TclLibrary)
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish Artifact: layout_appxstore_$(Name)'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\appx-store'
+ artifactName: layout_appxstore_$(Name)
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: cert'
+ condition: and(succeeded(), variables['SigningCertificate'])
+ inputs:
+ artifactName: cert
+ targetPath: $(Build.BinariesDirectory)\cert
+
+ - powershell: |
+ $info = (gc "$(Build.BinariesDirectory)\cert\certinfo.json" | ConvertFrom-JSON)
+ Write-Host "Side-loadable APPX must be signed with '$($info.Subject)'"
+ Write-Host "##vso[task.setvariable variable=APPX_DATA_PUBLISHER]$($info.Subject)"
+ Write-Host "##vso[task.setvariable variable=APPX_DATA_SHA256]$($info.SHA256)"
+ displayName: 'Override signing parameters'
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ - powershell: |
+ Remove-Item "$(Build.ArtifactStagingDirectory)\appx" -Recurse -Force -EA 0
+ $(LayoutCmd) --copy "$(Build.ArtifactStagingDirectory)\appx" --preset-appx --precompile --include-symbols --include-tests
+ displayName: 'Generate sideloading APPX layout'
+ env:
+ TCL_LIBRARY: $(TclLibrary)
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish Artifact: layout_appx_$(Name)'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\appx'
+ artifactName: layout_appx_$(Name)
--- /dev/null
+jobs:
+- job: Make_Nuget_Layout
+ displayName: Make Nuget layout
+ condition: and(succeeded(), eq(variables['DoNuget'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ win32:
+ Name: win32
+ Python: $(Build.BinariesDirectory)\bin\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ amd64:
+ Name: amd64
+ Python: $(Build.BinariesDirectory)\bin\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+ arm64:
+ Name: arm64
+ HostArch: amd64
+ Python: $(Build.BinariesDirectory)\bin_amd64\python.exe
+ PYTHONHOME: $(Build.SourcesDirectory)
+
+ steps:
+ - template: ./checkout.yml
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: bin_$(Name)'
+ inputs:
+ artifactName: bin_$(Name)
+ targetPath: $(Build.BinariesDirectory)\bin
+
+ - powershell: |
+ copy $(Build.BinariesDirectory)\bin\Activate.ps1 Lib\venv\scripts\common\Activate.ps1 -Force
+ displayName: 'Copy signed files into sources'
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ - template: ./layout-command.yml
+
+ - powershell: |
+ $(LayoutCmd) --copy "$(Build.ArtifactStagingDirectory)\nuget" --preset-nuget
+ displayName: 'Generate nuget layout'
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish Artifact: layout_nuget_$(Name)'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\nuget'
+ artifactName: layout_nuget_$(Name)
--- /dev/null
+parameters:
+ ARM64TclTk: true
+
+jobs:
+- job: Make_MSI
+ displayName: Make MSI
+ condition: and(succeeded(), not(variables['SigningCertificate']))
+
+ pool:
+ vmImage: windows-2022
+
+ variables:
+ ReleaseUri: http://www.python.org/{arch}
+ DownloadUrl: https://www.python.org/ftp/python/{version}/{arch}{releasename}/{msi}
+ Py_OutDir: $(Build.BinariesDirectory)
+
+ workspace:
+ clean: all
+
+ steps:
+ - template: msi-steps.yml
+ parameters:
+ ARM64TclTk: ${{ parameters.ARM64TclTk }}
+
+- job: Make_Signed_MSI
+ displayName: Make signed MSI
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ pool:
+ name: 'Windows Release'
+
+ variables:
+ ReleaseUri: http://www.python.org/{arch}
+ DownloadUrl: https://www.python.org/ftp/python/{version}/{arch}{releasename}/{msi}
+ Py_OutDir: $(Build.BinariesDirectory)
+
+ workspace:
+ clean: all
+
+ steps:
+ - template: msi-steps.yml
+ parameters:
+ ARM64TclTk: ${{ parameters.ARM64TclTk }}
--- /dev/null
+jobs:
+- job: Pack_MSIX
+ displayName: Pack MSIX bundles
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ amd64:
+ Name: amd64
+ Artifact: appx
+ Suffix:
+ ShouldSign: true
+ amd64_store:
+ Name: amd64
+ Artifact: appxstore
+ Suffix: -store
+ Upload: true
+ arm64:
+ Name: arm64
+ Artifact: appx
+ Suffix:
+ ShouldSign: true
+ arm64_store:
+ Name: arm64
+ Artifact: appxstore
+ Suffix: -store
+ Upload: true
+
+ steps:
+ - template: ./checkout.yml
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: layout_$(Artifact)_$(Name)'
+ inputs:
+ artifactName: layout_$(Artifact)_$(Name)
+ targetPath: $(Build.BinariesDirectory)\layout
+
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download artifact: symbols'
+ inputs:
+ artifactName: symbols
+ downloadPath: $(Build.BinariesDirectory)
+
+ - powershell: |
+ $d = (.\PCbuild\build.bat -V) | %{ if($_ -match '\s+(\w+):\s*(.+)\s*$') { @{$Matches[1] = $Matches[2];} }};
+ Write-Host "##vso[task.setvariable variable=VersionText]$($d.PythonVersion)"
+ Write-Host "##vso[task.setvariable variable=VersionNumber]$($d.PythonVersionNumber)"
+ Write-Host "##vso[task.setvariable variable=VersionHex]$($d.PythonVersionHex)"
+ Write-Host "##vso[task.setvariable variable=VersionUnique]$($d.PythonVersionUnique)"
+ Write-Host "##vso[task.setvariable variable=Filename]python-$($d.PythonVersion)-$(Name)$(Suffix)"
+ displayName: 'Extract version numbers'
+
+ - powershell: |
+ ./Tools/msi/make_appx.ps1 -layout "$(Build.BinariesDirectory)\layout" -msix "$(Build.ArtifactStagingDirectory)\msix\$(Filename).msix"
+ displayName: 'Build msix'
+
+ - powershell: |
+ 7z a -tzip "$(Build.ArtifactStagingDirectory)\msix\$(Filename).appxsym" *.pdb
+ displayName: 'Build appxsym'
+ workingDirectory: $(Build.BinariesDirectory)\symbols\$(Name)
+
+ - task: PublishBuildArtifacts@1
+ displayName: 'Publish Artifact: MSIX'
+ condition: and(succeeded(), or(ne(variables['ShouldSign'], 'true'), not(variables['SigningCertificate'])))
+ inputs:
+ PathtoPublish: '$(Build.ArtifactStagingDirectory)\msix'
+ ArtifactName: msix
+
+ - task: PublishBuildArtifacts@1
+ displayName: 'Publish Artifact: MSIX'
+ condition: and(succeeded(), and(eq(variables['ShouldSign'], 'true'), variables['SigningCertificate']))
+ inputs:
+ PathtoPublish: '$(Build.ArtifactStagingDirectory)\msix'
+ ArtifactName: unsigned_msix
+
+ - powershell: |
+ 7z a -tzip "$(Build.ArtifactStagingDirectory)\msixupload\$(Filename).msixupload" *
+ displayName: 'Build msixupload'
+ condition: and(succeeded(), eq(variables['Upload'], 'true'))
+ workingDirectory: $(Build.ArtifactStagingDirectory)\msix
+
+ - task: PublishBuildArtifacts@1
+ displayName: 'Publish Artifact: MSIXUpload'
+ condition: and(succeeded(), eq(variables['Upload'], 'true'))
+ inputs:
+ PathtoPublish: '$(Build.ArtifactStagingDirectory)\msixupload'
+ ArtifactName: msixupload
+
+
+- job: Sign_MSIX
+ displayName: Sign side-loadable MSIX bundles
+ dependsOn:
+ - Pack_MSIX
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ pool:
+ name: 'Windows Release'
+
+ workspace:
+ clean: all
+
+ steps:
+ - template: ./checkout.yml
+ - template: ./find-sdk.yml
+
+ - powershell: |
+ $d = (.\PCbuild\build.bat -V) | %{ if($_ -match '\s+(\w+):\s*(.+)\s*$') { @{$Matches[1] = $Matches[2];} }};
+ Write-Host "##vso[task.setvariable variable=SigningDescription]Python $($d.PythonVersion)"
+ displayName: 'Update signing description'
+ condition: and(succeeded(), not(variables['SigningDescription']))
+
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download Artifact: unsigned_msix'
+ inputs:
+ artifactName: unsigned_msix
+ downloadPath: $(Build.BinariesDirectory)
+
+ # MSIX must be signed and timestamped simultaneously
+ #
+ # Getting "Error: SignerSign() failed." (-2147024885/0x8007000b)"?
+ # It may be that the certificate info collected in stage-sign.yml is wrong. Check that
+ # you do not have multiple matches for the certificate name you have specified.
+ - powershell: |
+ $failed = $true
+ foreach ($retry in 1..3) {
+ signtool sign /a /n "$(SigningCertificate)" /fd sha256 /tr http://timestamp.digicert.com/ /td sha256 /d "$(SigningDescription)" (gi *.msix)
+ if ($?) {
+ $failed = $false
+ break
+ }
+ sleep 1
+ }
+ if ($failed) {
+ throw "Failed to sign MSIX"
+ }
+ displayName: 'Sign MSIX'
+ workingDirectory: $(Build.BinariesDirectory)\unsigned_msix
+
+ - task: PublishBuildArtifacts@1
+ displayName: 'Publish Artifact: MSIX'
+ inputs:
+ PathtoPublish: '$(Build.BinariesDirectory)\unsigned_msix'
+ ArtifactName: msix
--- /dev/null
+jobs:
+- job: Pack_Nuget
+ displayName: Pack Nuget bundles
+ condition: and(succeeded(), eq(variables['DoNuget'], 'true'))
+
+ pool:
+ name: 'Windows Release'
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ amd64:
+ Name: amd64
+ win32:
+ Name: win32
+ arm64:
+ Name: arm64
+
+ steps:
+ - checkout: none
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: layout_nuget_$(Name)'
+ inputs:
+ artifactName: layout_nuget_$(Name)
+ targetPath: $(Build.BinariesDirectory)\layout
+
+ - task: NugetToolInstaller@0
+ displayName: 'Install Nuget'
+ inputs:
+ versionSpec: '>=5.0'
+
+ - powershell: >
+ nuget pack
+ "$(Build.BinariesDirectory)\layout\python.nuspec"
+ -OutputDirectory $(Build.ArtifactStagingDirectory)
+ -NoPackageAnalysis
+ -NonInteractive
+ condition: and(succeeded(), not(variables['OverrideNugetVersion']))
+ displayName: 'Create nuget package'
+
+ - powershell: >
+ nuget pack
+ "$(Build.BinariesDirectory)\layout\python.nuspec"
+ -OutputDirectory $(Build.ArtifactStagingDirectory)
+ -NoPackageAnalysis
+ -NonInteractive
+ -Version "$(OverrideNugetVersion)"
+ condition: and(succeeded(), variables['OverrideNugetVersion'])
+ displayName: 'Create nuget package'
+
+ - powershell: |
+ gci *.nupkg | %{
+ nuget sign "$_" -CertificateSubjectName "$(SigningCertificate)" -Timestamper http://timestamp.digicert.com/ -Overwrite
+ }
+ displayName: 'Sign nuget package'
+ workingDirectory: $(Build.ArtifactStagingDirectory)
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ - task: PublishBuildArtifacts@1
+ displayName: 'Publish Artifact: nuget'
+ inputs:
+ PathtoPublish: '$(Build.ArtifactStagingDirectory)'
+ ArtifactName: nuget
--- /dev/null
+parameters:
+ BuildToPublish: ''
+
+jobs:
+- job: Publish_Nuget
+ displayName: Publish Nuget packages
+ condition: and(succeeded(), eq(variables['DoNuget'], 'true'), ne(variables['SkipNugetPublish'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ steps:
+ - checkout: none
+
+ - ${{ if parameters.BuildToPublish }}:
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download artifact from ${{ parameters.BuildToPublish }}'
+ inputs:
+ artifactName: nuget
+ downloadPath: $(Build.BinariesDirectory)
+ buildType: specific
+ project: $(System.TeamProject)
+ pipeline: $(Build.DefinitionName)
+ buildVersionToDownload: specific
+ buildId: ${{ parameters.BuildToPublish }}
+
+ - ${{ else }}:
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download artifact: nuget'
+ inputs:
+ artifactName: nuget
+ downloadPath: $(Build.BinariesDirectory)
+
+
+ - powershell: 'gci pythonarm*.nupkg | %{ Write-Host "Not publishing: $($_.Name)"; gi $_ } | del'
+ displayName: 'Prevent publishing ARM64 packages'
+ workingDirectory: '$(Build.BinariesDirectory)\nuget'
+ condition: and(succeeded(), ne(variables['PublishARM64'], 'true'))
+
+ - task: NuGetCommand@2
+ displayName: Push packages
+ condition: and(succeeded(), eq(variables['SigningCertificate'], variables['__RealSigningCertificate']))
+ inputs:
+ command: push
+ packagesToPush: '$(Build.BinariesDirectory)\nuget\*.nupkg'
+ nuGetFeedType: external
+ publishFeedCredentials: 'Python on Nuget'
--- /dev/null
+parameters:
+ BuildToPublish: ''
+
+jobs:
+- job: Publish_Python
+ displayName: Publish python.org packages
+ condition: and(succeeded(), eq(variables['DoMSI'], 'true'), eq(variables['DoEmbed'], 'true'), ne(variables['SkipPythonOrgPublish'], 'true'))
+
+ pool:
+ #vmImage: windows-2022
+ name: 'Windows Release'
+
+ workspace:
+ clean: all
+
+ steps:
+ - template: ./checkout.yml
+
+ - task: UsePythonVersion@0
+ displayName: 'Use Python 3.6 or later'
+ inputs:
+ versionSpec: '>=3.6'
+
+ - ${{ if parameters.BuildToPublish }}:
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact from ${{ parameters.BuildToPublish }}: Doc'
+ inputs:
+ artifactName: Doc
+ targetPath: $(Build.BinariesDirectory)\Doc
+ buildType: specific
+ project: $(System.TeamProject)
+ pipeline: $(Build.DefinitionName)
+ buildVersionToDownload: specific
+ buildId: ${{ parameters.BuildToPublish }}
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact from ${{ parameters.BuildToPublish }}: msi'
+ inputs:
+ artifactName: msi
+ targetPath: $(Build.BinariesDirectory)\msi
+ buildType: specific
+ project: $(System.TeamProject)
+ pipeline: $(Build.DefinitionName)
+ buildVersionToDownload: specific
+ buildId: ${{ parameters.BuildToPublish }}
+
+ # Note that embed is a 'build' artifact, not a 'pipeline' artifact
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download artifact from ${{ parameters.BuildToPublish }}: embed'
+ inputs:
+ artifactName: embed
+ downloadPath: $(Build.BinariesDirectory)
+ buildType: specific
+ project: $(System.TeamProject)
+ pipeline: $(Build.DefinitionName)
+ buildVersionToDownload: specific
+ buildId: ${{ parameters.BuildToPublish }}
+
+ - ${{ else }}:
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: Doc'
+ inputs:
+ artifactName: Doc
+ targetPath: $(Build.BinariesDirectory)\Doc
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: msi'
+ inputs:
+ artifactName: msi
+ targetPath: $(Build.BinariesDirectory)\msi
+
+ # Note that embed is a 'build' artifact, not a 'pipeline' artifact
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download artifact: embed'
+ inputs:
+ artifactName: embed
+ downloadPath: $(Build.BinariesDirectory)
+
+
+ # Note that ARM64 MSIs are skipped at build when this option is specified
+ - powershell: 'gci *embed-arm*.zip | %{ Write-Host "Not publishing: $($_.Name)"; gi $_ } | del'
+ displayName: 'Prevent publishing ARM64 packages'
+ workingDirectory: '$(Build.BinariesDirectory)\embed'
+ condition: and(succeeded(), ne(variables['PublishARM64'], 'true'))
+
+
+ - task: DownloadSecureFile@1
+ name: gpgkey
+ inputs:
+ secureFile: 'python-signing.key'
+ displayName: 'Download GPG key'
+
+ - powershell: |
+ git clone https://github.com/python/cpython-bin-deps --branch gpg --single-branch --depth 1 --progress -v "gpg"
+ gpg/gpg2.exe --import "$(gpgkey.secureFilePath)"
+ $files = gci -File "msi\*\*", "embed\*.zip"
+ if ("$(DoCHM)" -ieq "true") {
+ $files = $files + (gci -File "doc\htmlhelp\*.chm")
+ }
+ $files.FullName | %{
+ gpg/gpg2.exe -ba --batch --passphrase $(GPGPassphrase) $_
+ "Made signature for $_"
+ }
+ displayName: 'Generate GPG signatures'
+ workingDirectory: $(Build.BinariesDirectory)
+
+ - powershell: |
+ $p = gps "gpg-agent" -EA 0
+ if ($p) { $p.Kill() }
+ displayName: 'Kill GPG agent'
+ condition: true
+
+
+ - powershell: >
+ $(Build.SourcesDirectory)\Tools\msi\uploadrelease.ps1
+ -build msi
+ -user $(PyDotOrgUsername)
+ -server $(PyDotOrgServer)
+ -doc_htmlhelp doc\htmlhelp
+ -embed embed
+ -skippurge
+ -skiptest
+ -skiphash
+ condition: and(succeeded(), eq(variables['SigningCertificate'], variables['__RealSigningCertificate']))
+ workingDirectory: $(Build.BinariesDirectory)
+ displayName: 'Upload files to python.org'
+
+ - powershell: >
+ python
+ "$(Build.SourcesDirectory)\Tools\msi\purge.py"
+ (gci msi\*\python-*.exe | %{ $_.Name -replace 'python-(.+?)(-|\.exe).+', '$1' } | select -First 1)
+ workingDirectory: $(Build.BinariesDirectory)
+ condition: and(succeeded(), eq(variables['SigningCertificate'], variables['__RealSigningCertificate']))
+ displayName: 'Purge CDN'
+
+ - powershell: |
+ $failures = 0
+ gci "msi\*\*.exe" -File | %{
+ $d = mkdir "tests\$($_.BaseName)" -Force
+ gci $d -r -File | del
+ $ic = copy $_ $d -PassThru
+ "Checking layout for $($ic.Name)"
+ Start-Process -wait $ic "/passive", "/layout", "$d\layout", "/log", "$d\log\install.log"
+ if (-not $?) {
+ Write-Error "Failed to validate layout of $($inst.Name)"
+ $failures += 1
+ }
+ }
+ if ($failures) {
+ Write-Error "Failed to validate $failures installers"
+ exit 1
+ }
+ condition: and(succeeded(), eq(variables['SigningCertificate'], variables['__RealSigningCertificate']))
+ workingDirectory: $(Build.BinariesDirectory)
+ displayName: 'Test layouts'
+
+ - powershell: |
+ $files = gci -File "msi\*\*.exe", "embed\*.zip"
+ if ("$(DoCHM)" -ieq "true") {
+ $files = $files + (gci -File "doc\htmlhelp\python*.chm")
+ }
+ $hashes = $files | `
+ Sort-Object Name | `
+ Format-Table Name, @{
+ Label="MD5";
+ Expression={(Get-FileHash $_ -Algorithm MD5).Hash}
+ }, Length -AutoSize | `
+ Out-String -Width 4096
+ $d = mkdir "$(Build.ArtifactStagingDirectory)\hashes" -Force
+ $hashes | Out-File "$d\hashes.txt" -Encoding ascii
+ $hashes
+ workingDirectory: $(Build.BinariesDirectory)
+ displayName: 'Generate hashes'
+
+ - powershell: |
+ "Copying:"
+ $files = gci -File "msi\*\python*.asc", "embed\*.asc"
+ if ("$(DoCHM)" -ieq "true") {
+ $files = $files + (gci -File "doc\htmlhelp\*.asc")
+ }
+ $files.FullName
+ $d = mkdir "$(Build.ArtifactStagingDirectory)\hashes" -Force
+ move $files $d -Force
+ gci msi -Directory | %{ move "msi\$_\*.asc" (mkdir "$d\$_" -Force) }
+ workingDirectory: $(Build.BinariesDirectory)
+ displayName: 'Copy GPG signatures for build'
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish Artifact: hashes'
+ inputs:
+ targetPath: '$(Build.ArtifactStagingDirectory)\hashes'
+ artifactName: hashes
--- /dev/null
+parameters:
+ BuildToPublish: ''
+
+jobs:
+- job: Publish_Store
+ displayName: Publish Store packages
+ condition: and(succeeded(), eq(variables['DoMSIX'], 'true'), ne(variables['SkipMSIXPublish'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ steps:
+ - checkout: none
+
+ - ${{ if parameters.BuildToPublish }}:
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download artifact: msixupload'
+ inputs:
+ artifactName: msixupload
+ downloadPath: $(Build.BinariesDirectory)
+ buildType: specific
+ project: cpython
+ pipeline: Windows-Release
+ buildVersionToDownload: specific
+ buildId: ${{ parameters.BuildToPublish }}
+
+ - ${{ else }}:
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download artifact: msixupload'
+ inputs:
+ artifactName: msixupload
+ downloadPath: $(Build.BinariesDirectory)
+
+ # TODO: eq(variables['SigningCertificate'], variables['__RealSigningCertificate'])
+ # If we are not real-signed, DO NOT PUBLISH
--- /dev/null
+parameters:
+ Include: '*.exe, *.dll, *.pyd, *.cat, *.ps1'
+ Exclude: 'vcruntime*, libffi*, libcrypto*, libssl*'
+
+jobs:
+- job: Sign_Python
+ displayName: Sign Python binaries
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ pool:
+ name: 'Windows Release'
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ win32:
+ Name: win32
+ amd64:
+ Name: amd64
+ arm64:
+ Name: arm64
+
+ steps:
+ - template: ./checkout.yml
+ - template: ./find-sdk.yml
+
+ - powershell: |
+ $d = (.\PCbuild\build.bat -V) | %{ if($_ -match '\s+(\w+):\s*(.+)\s*$') { @{$Matches[1] = $Matches[2];} }};
+ Write-Host "##vso[task.setvariable variable=SigningDescription]Python $($d.PythonVersion)"
+ displayName: 'Update signing description'
+ condition: and(succeeded(), not(variables['SigningDescription']))
+
+ - powershell: |
+ Write-Host "##vso[build.addbuildtag]signed"
+ displayName: 'Add build tags'
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: unsigned_bin_$(Name)'
+ inputs:
+ artifactName: unsigned_bin_$(Name)
+ targetPath: $(Build.BinariesDirectory)\bin
+
+ - powershell: |
+ copy "$(Build.SourcesDirectory)\Lib\venv\scripts\common\Activate.ps1" .
+ displayName: 'Copy files from source'
+ workingDirectory: $(Build.BinariesDirectory)\bin
+
+ - powershell: |
+ $files = (gi ${{ parameters.Include }} -Exclude ${{ parameters.Exclude }})
+ signtool sign /a /n "$(SigningCertificate)" /fd sha256 /d "$(SigningDescription)" $files
+ displayName: 'Sign binaries'
+ workingDirectory: $(Build.BinariesDirectory)\bin
+
+ - powershell: |
+ $files = (gi ${{ parameters.Include }} -Exclude ${{ parameters.Exclude }})
+ $failed = $true
+ foreach ($retry in 1..10) {
+ signtool timestamp /tr http://timestamp.digicert.com/ /td sha256 $files
+ if ($?) {
+ $failed = $false
+ break
+ }
+ sleep 5
+ }
+ if ($failed) {
+ Write-Host "##vso[task.logissue type=error]Failed to timestamp files"
+ }
+ displayName: 'Timestamp binaries'
+ workingDirectory: $(Build.BinariesDirectory)\bin
+ continueOnError: true
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish artifact: bin_$(Name)'
+ inputs:
+ targetPath: '$(Build.BinariesDirectory)\bin'
+ artifactName: bin_$(Name)
+
+
+- job: Dump_CertInfo
+ displayName: Capture certificate info
+ condition: and(succeeded(), variables['SigningCertificate'])
+
+ pool:
+ name: 'Windows Release'
+
+ steps:
+ - checkout: none
+
+ - powershell: |
+ $m = 'CN=$(SigningCertificate)'
+ $c = ((gci Cert:\CurrentUser\My), (gci Cert:\LocalMachine\My)) | %{ $_ } | `
+ ?{ $_.Subject -match $m -and $_.NotBefore -lt (Get-Date) -and $_.NotAfter -gt (Get-Date) } | `
+ select -First 1
+ if (-not $c) {
+ Write-Host "Failed to find certificate for $(SigningCertificate)"
+ exit
+ }
+ $d = mkdir "$(Build.BinariesDirectory)\tmp" -Force
+ $cf = "$d\cert.cer"
+ [IO.File]::WriteAllBytes($cf, $c.Export("Cer"))
+ $csha = (certutil -dump $cf | sls "Cert Hash\(sha256\): (.+)").Matches.Groups[1].Value
+
+ $info = @{ Subject=$c.Subject; SHA256=$csha; }
+
+ $d = mkdir "$(Build.BinariesDirectory)\cert" -Force
+ $info | ConvertTo-JSON -Compress | Out-File -Encoding utf8 "$d\certinfo.json"
+ displayName: "Extract certificate info"
+
+ - task: PublishPipelineArtifact@0
+ displayName: 'Publish artifact: cert'
+ inputs:
+ targetPath: '$(Build.BinariesDirectory)\cert'
+ artifactName: cert
+
+
+- job: Mark_Unsigned
+ displayName: Tag unsigned build
+ condition: and(succeeded(), not(variables['SigningCertificate']))
+
+ pool:
+ vmImage: windows-2022
+
+ steps:
+ - checkout: none
+
+ - powershell: |
+ Write-Host "##vso[build.addbuildtag]unsigned"
+ displayName: 'Add build tag'
--- /dev/null
+jobs:
+- job: Test_Embed
+ displayName: Test Embed
+ condition: and(succeeded(), eq(variables['DoEmbed'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ win32:
+ Name: win32
+ amd64:
+ Name: amd64
+
+ steps:
+ - checkout: none
+
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download artifact: embed'
+ inputs:
+ artifactName: embed
+ downloadPath: $(Build.BinariesDirectory)
+
+ - powershell: |
+ $p = gi "$(Build.BinariesDirectory)\embed\python*embed-$(Name).zip"
+ Expand-Archive -Path $p -DestinationPath "$(Build.BinariesDirectory)\Python"
+ $p = gi "$(Build.BinariesDirectory)\Python\python.exe"
+ Write-Host "##vso[task.prependpath]$(Split-Path -Parent $p)"
+ displayName: 'Install Python and add to PATH'
+
+ - script: |
+ python -c "import sys; print(sys.version)"
+ displayName: 'Collect version number'
+
+ - script: |
+ python -m site
+ displayName: 'Collect site'
--- /dev/null
+jobs:
+- job: Test_MSI
+ displayName: Test MSI
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ win32_User:
+ ExeMatch: 'python-[\dabrc.]+\.exe'
+ Logs: $(Build.ArtifactStagingDirectory)\logs\win32_User
+ InstallAllUsers: 0
+ win32_Machine:
+ ExeMatch: 'python-[\dabrc.]+\.exe'
+ Logs: $(Build.ArtifactStagingDirectory)\logs\win32_Machine
+ InstallAllUsers: 1
+ amd64_User:
+ ExeMatch: 'python-[\dabrc.]+-amd64\.exe'
+ Logs: $(Build.ArtifactStagingDirectory)\logs\amd64_User
+ InstallAllUsers: 0
+ amd64_Machine:
+ ExeMatch: 'python-[\dabrc.]+-amd64\.exe'
+ Logs: $(Build.ArtifactStagingDirectory)\logs\amd64_Machine
+ InstallAllUsers: 1
+
+ steps:
+ - checkout: none
+
+ - task: DownloadPipelineArtifact@1
+ displayName: 'Download artifact: msi'
+ inputs:
+ artifactName: msi
+ targetPath: $(Build.BinariesDirectory)\msi
+
+ - powershell: |
+ $p = (gci -r *.exe | ?{ $_.Name -match '$(ExeMatch)' } | select -First 1)
+ Write-Host "##vso[task.setvariable variable=SetupExe]$($p.FullName)"
+ Write-Host "##vso[task.setvariable variable=SetupExeName]$($p.Name)"
+ displayName: 'Find installer executable'
+ workingDirectory: $(Build.BinariesDirectory)\msi
+
+ - script: >
+ "$(SetupExe)"
+ /passive
+ /log "$(Logs)\install\log.txt"
+ TargetDir="$(Build.BinariesDirectory)\Python"
+ Include_debug=1
+ Include_symbols=1
+ InstallAllUsers=$(InstallAllUsers)
+ displayName: 'Install Python'
+
+ - powershell: |
+ $p = gi "$(Build.BinariesDirectory)\Python\python.exe"
+ Write-Host "##vso[task.prependpath]$(Split-Path -Parent $p)"
+ displayName: 'Add test Python to PATH'
+
+ - script: |
+ python -c "import sys; print(sys.version)"
+ displayName: 'Collect version number'
+
+ - script: |
+ python -m site
+ displayName: 'Collect site'
+
+ - powershell: |
+ gci -r "${env:PROGRAMDATA}\Microsoft\Windows\Start Menu\Programs\Python*"
+ displayName: 'Capture per-machine Start Menu items'
+ - powershell: |
+ gci -r "${env:APPDATA}\Microsoft\Windows\Start Menu\Programs\Python*"
+ displayName: 'Capture per-user Start Menu items'
+
+ - powershell: |
+ gci -r "HKLM:\Software\WOW6432Node\Python"
+ displayName: 'Capture per-machine 32-bit registry'
+ - powershell: |
+ gci -r "HKLM:\Software\Python"
+ displayName: 'Capture per-machine native registry'
+ - powershell: |
+ gci -r "HKCU:\Software\Python"
+ displayName: 'Capture current-user registry'
+
+ - script: |
+ python -m pip install "azure<0.10"
+ python -m pip uninstall -y azure python-dateutil six
+ displayName: 'Test (un)install package'
+
+ - script: |
+ python -m test -uall -v test_ttk_guionly test_tk test_idle
+ displayName: 'Test Tkinter and Idle'
+
+ - script: >
+ "$(SetupExe)"
+ /passive
+ /uninstall
+ /log "$(Logs)\uninstall\log.txt"
+ displayName: 'Uninstall Python'
+
+ - task: PublishBuildArtifacts@1
+ displayName: 'Publish Artifact: logs'
+ condition: true
+ continueOnError: true
+ inputs:
+ PathtoPublish: '$(Build.ArtifactStagingDirectory)\logs'
+ ArtifactName: msi_testlogs
--- /dev/null
+jobs:
+- job: Test_Nuget
+ displayName: Test Nuget
+ condition: and(succeeded(), eq(variables['DoNuget'], 'true'))
+
+ pool:
+ vmImage: windows-2022
+
+ workspace:
+ clean: all
+
+ strategy:
+ matrix:
+ win32:
+ Package: pythonx86
+ amd64:
+ Package: python
+
+ steps:
+ - checkout: none
+
+ - task: DownloadBuildArtifacts@0
+ displayName: 'Download artifact: nuget'
+ inputs:
+ artifactName: nuget
+ downloadPath: $(Build.BinariesDirectory)
+
+ - task: NugetToolInstaller@0
+ inputs:
+ versionSpec: '>= 5'
+
+ - powershell: >
+ nuget install
+ $(Package)
+ -Source "$(Build.BinariesDirectory)\nuget"
+ -OutputDirectory "$(Build.BinariesDirectory)\install"
+ -Prerelease
+ -ExcludeVersion
+ -NonInteractive
+ displayName: 'Install Python'
+
+ - powershell: |
+ $p = gi "$(Build.BinariesDirectory)\install\$(Package)\tools\python.exe"
+ Write-Host "##vso[task.prependpath]$(Split-Path -Parent $p)"
+ displayName: 'Add test Python to PATH'
+
+ - script: |
+ python -c "import sys; print(sys.version)"
+ displayName: 'Collect version number'
+
+ - script: |
+ python -m site
+ displayName: 'Collect site'
+
+ - script: |
+ python -m pip install "azure<0.10"
+ python -m pip uninstall -y azure python-dateutil six
+ displayName: 'Test (un)install package'
--- /dev/null
+steps:
+- checkout: self
+ clean: false
+ fetchDepth: 5
+
+- powershell: |
+ # Relocate build outputs outside of source directory to make cleaning faster
+ Write-Host '##vso[task.setvariable variable=Py_IntDir]$(Build.BinariesDirectory)\obj'
+ # UNDONE: Do not build to a different directory because of broken tests
+ Write-Host '##vso[task.setvariable variable=Py_OutDir]$(Build.SourcesDirectory)\PCbuild'
+ #Write-Host '##vso[task.setvariable variable=Py_OutDir]$(Build.BinariesDirectory)\bin'
+ Write-Host '##vso[task.setvariable variable=EXTERNALS_DIR]$(Build.BinariesDirectory)\externals'
+ displayName: Update build locations
+
+- script: PCbuild\build.bat -e $(buildOpt)
+ displayName: 'Build CPython'
+ env:
+ IncludeUwp: true
+
+- script: python.bat -m test.pythoninfo
+ displayName: 'Display build info'
+ condition: and(succeeded(), variables['testRunPlatform'])
+
+- script: PCbuild\rt.bat -q -uall -u-cpu -rwW --slowest --timeout=1200 -j0 --junit-xml="$(Build.BinariesDirectory)\test-results.xml" --tempdir="$(Build.BinariesDirectory)\test"
+ displayName: 'Tests'
+ condition: and(succeeded(), variables['testRunPlatform'])
+ env:
+ PREFIX: $(Py_OutDir)\$(arch)
+
+- task: PublishTestResults@2
+ displayName: 'Publish Test Results'
+ inputs:
+ testResultsFiles: '$(Build.BinariesDirectory)\test-results.xml'
+ mergeTestResults: true
+ testRunTitle: $(testRunTitle)
+ platform: $(testRunPlatform)
+ condition: and(succeededOrFailed(), variables['testRunPlatform'])
--- /dev/null
+# Binary data types
+*.aif binary
+*.aifc binary
+*.aiff binary
+*.au binary
+*.bmp binary
+*.exe binary
+*.icns binary
+*.gif binary
+*.ico binary
+*.jpg binary
+*.pck binary
+*.png binary
+*.psd binary
+*.tar binary
+*.wav binary
+*.whl binary
+*.zip binary
+
+# Specific binary files
+Lib/test/sndhdrdata/sndhdr.* binary
+PC/classicAppCompat.* binary
+
+# Text files that should not be subject to eol conversion
+[attr]noeol -text
+
+Lib/test/cjkencodings/* noeol
+Lib/test/coding20731.py noeol
+Lib/test/decimaltestdata/*.decTest noeol
+Lib/test/test_email/data/*.txt noeol
+Lib/test/test_importlib/data01/* noeol
+Lib/test/test_importlib/namespacedata01/* noeol
+Lib/test/xmltestdata/* noeol
+
+# CRLF files
+[attr]dos text eol=crlf
+
+*.bat dos
+*.proj dos
+*.props dos
+*.ps1 dos
+*.sln dos
+*.vcxproj* dos
+PC/readme.txt dos
+PCbuild/readme.txt dos
+
+# Language aware diff headers
+# https://tekin.co.uk/2020/10/better-git-diff-output-for-ruby-python-elixir-and-more
+# https://gist.github.com/tekin/12500956bd56784728e490d8cef9cb81
+*.c diff=cpp
+*.h diff=cpp
+*.css diff=css
+*.html diff=html
+*.py diff=python
+*.md diff=markdown
+
+# Generated files
+# https://github.com/github/linguist/blob/master/docs/overrides.md
+#
+# To always hide generated files in local diffs, mark them as binary:
+# $ git config diff.generated.binary true
+#
+[attr]generated linguist-generated=true diff=generated
+
+**/clinic/*.c.h generated
+*_db.h generated
+Doc/data/stable_abi.dat generated
+Doc/library/token-list.inc generated
+Include/internal/pycore_ast.h generated
+Include/internal/pycore_ast_state.h generated
+Include/internal/pycore_opcode.h generated
+Include/opcode.h generated
+Include/token.h generated
+Lib/keyword.py generated
+Lib/test/test_stable_abi_ctypes.py generated
+Lib/token.py generated
+Objects/typeslots.inc generated
+PC/python3dll.c generated
+Parser/parser.c generated
+Parser/token.c generated
+Programs/test_frozenmain.h generated
+Python/Python-ast.c generated
+Python/opcode_targets.h generated
+Python/stdlib_module_names.h generated
+Tools/peg_generator/pegen/grammar_parser.py generated
+aclocal.m4 generated
+configure generated
--- /dev/null
+# See https://help.github.com/articles/about-codeowners/
+# for more info about CODEOWNERS file
+
+# It uses the same pattern rule for gitignore file
+# https://git-scm.com/docs/gitignore#_pattern_format
+
+# GitHub
+.github/** @ezio-melotti
+
+# asyncio
+**/*asyncio* @1st1 @asvetlov
+
+# Core
+**/*context* @1st1
+**/*genobject* @1st1 @markshannon
+**/*hamt* @1st1
+Objects/set* @rhettinger
+Objects/dict* @methane @markshannon
+Objects/type* @markshannon
+Objects/codeobject.c @markshannon
+Objects/frameobject.c @markshannon
+Objects/call.c @markshannon
+Python/ceval.c @markshannon
+Python/compile.c @markshannon
+Python/ast_opt.c @isidentical
+Lib/test/test_patma.py @brandtbucher
+Lib/test/test_peepholer.py @brandtbucher
+
+# Exceptions
+Lib/traceback.py @iritkatriel
+Lib/test/test_except*.py @iritkatriel
+Lib/test/test_traceback.py @iritkatriel
+Objects/exceptions.c @iritkatriel
+Python/traceback.c @iritkatriel
+Python/pythonrun.c @iritkatriel
+
+# Hashing
+**/*hashlib* @tiran
+**/*pyhash* @tiran
+**/*sha* @tiran
+**/*md5* @tiran
+**/*blake* @tiran
+/Modules/_blake2/** @tiran
+/Modules/_sha3/** @tiran
+
+# logging
+**/*logging* @vsajip
+
+# venv
+**/*venv* @vsajip
+
+# Launcher
+/PC/launcher.c @vsajip
+
+# HTML
+/Lib/html/ @ezio-melotti
+/Lib/_markupbase.py @ezio-melotti
+/Lib/test/test_html*.py @ezio-melotti
+
+# Import (including importlib).
+# Ignoring importlib.h so as to not get flagged on
+# all pull requests that change the emitted
+# bytecode.
+**/*import*.c @brettcannon @encukou @ericsnowcurrently @ncoghlan @warsaw
+**/*import*.py @brettcannon @encukou @ericsnowcurrently @ncoghlan @warsaw
+
+# Dates and times
+**/*datetime* @pganssle @abalkin
+**/*str*time* @pganssle @abalkin
+Doc/library/time.rst @pganssle @abalkin
+Lib/test/test_time.py @pganssle @abalkin
+Modules/timemodule.c @pganssle @abalkin
+Python/pytime.c @pganssle @abalkin
+Include/pytime.h @pganssle @abalkin
+
+# Email and related
+**/*mail* @python/email-team
+**/*smtp* @python/email-team
+**/*mime* @python/email-team
+**/*imap* @python/email-team
+**/*poplib* @python/email-team
+
+# Garbage collector
+/Modules/gcmodule.c @pablogsal
+/Doc/library/gc.rst @pablogsal
+
+# Parser
+/Parser/ @pablogsal @lysnikolaou
+/Tools/peg_generator/ @pablogsal @lysnikolaou
+/Lib/test/test_peg_generator/ @pablogsal @lysnikolaou
+/Grammar/python.gram @pablogsal @lysnikolaou
+
+# AST
+Python/ast.c @isidentical
+Parser/asdl.py @isidentical
+Parser/asdl_c.py @isidentical
+Lib/ast.py @isidentical
+
+# Mock
+/Lib/unittest/mock.py @cjw296
+/Lib/unittest/test/testmock/* @cjw296
+
+# SQLite 3
+**/*sqlite* @berkerpeksag @erlend-aasland
+
+# subprocess
+/Lib/subprocess.py @gpshead
+/Lib/test/test_subprocess.py @gpshead
+/Modules/*subprocess* @gpshead
+
+# Windows
+/PC/ @python/windows-team
+/PCbuild/ @python/windows-team
+
+# Urllib
+**/*robotparser* @berkerpeksag
+
+# Windows installer packages
+/Tools/msi/ @python/windows-team
+/Tools/nuget/ @python/windows-team
+
+# Misc
+**/*itertools* @rhettinger
+**/*collections* @rhettinger
+**/*random* @rhettinger
+**/*queue* @rhettinger
+**/*bisect* @rhettinger
+**/*heapq* @rhettinger
+**/*functools* @rhettinger
+**/*decimal* @rhettinger
+
+**/*dataclasses* @ericvsmith
+
+**/*idlelib* @terryjreedy
+
+**/*typing* @gvanrossum @Fidget-Spinner @JelleZijlstra @AlexWaygood
+
+**/*asyncore @giampaolo
+**/*asynchat @giampaolo
+**/*ftplib @giampaolo
+**/*shutil @giampaolo
+
+**/*enum* @ethanfurman
+**/*cgi* @ethanfurman
+**/*tarfile* @ethanfurman
+
+**/*tomllib* @encukou
+
+# macOS
+/Mac/ @python/macos-team
+**/*osx_support* @python/macos-team
+
+# pathlib
+**/*pathlib* @brettcannon
--- /dev/null
+Contributing to Python
+======================
+
+Build Status
+------------
+
+- main
+
+ + `Stable buildbots <https://buildbot.python.org/3.x.stable/>`_
+
+- 3.9
+
+ + `Stable buildbots <https://buildbot.python.org/3.9.stable/>`_
+
+- 3.8
+
+ + `Stable buildbots <https://buildbot.python.org/3.8.stable/>`_
+
+- 3.7
+
+ + `Stable buildbots <https://buildbot.python.org/3.7.stable/>`_
+
+
+Thank You
+---------
+First off, thanks for contributing to the maintenance of the Python programming
+language and the CPython interpreter! Even if your contribution is not
+ultimately accepted, the fact you put time and effort into helping out is
+greatly appreciated.
+
+
+Contribution Guidelines
+-----------------------
+Please read the `devguide <https://devguide.python.org/>`_ for
+guidance on how to contribute to this project. The documentation covers
+everything from how to build the code to submitting a pull request. There are
+also suggestions on how you can most effectively help the project.
+
+Please be aware that our workflow does deviate slightly from the typical GitHub
+project. Details on how to properly submit a pull request are covered in
+`Lifecycle of a Pull Request <https://devguide.python.org/getting-started/pull-request-lifecycle.html>`_.
+We utilize various bots and status checks to help with this, so do follow the
+comments they leave and their "Details" links, respectively. The key points of
+our workflow that are not covered by a bot or status check are:
+
+- All discussions that are not directly related to the code in the pull request
+ should happen on `GitHub Issues <https://github.com/python/cpython/issues>`_.
+- Upon your first non-trivial pull request (which includes documentation changes),
+ feel free to add yourself to ``Misc/ACKS``
+
+
+Setting Expectations
+--------------------
+Due to the fact that this project is entirely volunteer-run (i.e. no one is paid
+to work on Python full-time), we unfortunately can make no guarantees as to if
+or when a core developer will get around to reviewing your pull request.
+If no core developer has done a review or responded to changes made because of a
+"changes requested" review, please feel free to email python-dev to ask if
+someone could take a look at your pull request.
+
+
+Code of Conduct
+---------------
+All interactions for this project are covered by the
+`PSF Code of Conduct <https://www.python.org/psf/codeofconduct/>`_. Everyone is
+expected to be open, considerate, and respectful of others no matter their
+position within the project.
--- /dev/null
+---
+name: Bug report
+about: Submit a bug report
+labels: "type-bug"
+---
+
+<!--
+ If you're new to Python and you're not sure whether what you're experiencing is a bug, the CPython issue tracker is not
+ the right place to seek help. Consider the following options instead:
+
+ - reading the Python tutorial: https://docs.python.org/3/tutorial/
+ - posting in the "Users" category on discuss.python.org: https://discuss.python.org/c/users/7
+ - emailing the Python-list mailing list: https://mail.python.org/mailman/listinfo/python-list
+ - searching our issue tracker (https://github.com/python/cpython/issues) to see if
+ your problem has already been reported
+-->
+
+**Bug report**
+
+A clear and concise description of what the bug is.
+Include a minimal, reproducible example (https://stackoverflow.com/help/minimal-reproducible-example), if possible.
+
+**Your environment**
+
+<!-- Include as many relevant details as possible about the environment you experienced the bug in -->
+
+- CPython versions tested on:
+- Operating system and architecture:
+
+<!--
+You can freely edit this text. Remove any lines you believe are unnecessary.
+-->
--- /dev/null
+contact_links:
+ - name: "Getting help"
+ about: "Ask questions about using Python and debugging errors on Discourse."
+ url: "https://discuss.python.org/c/users/7"
+ - name: "Proposing new features"
+ about: "Submit major feature proposal (e.g. syntax changes) to an ideas forum first."
+ url: "https://discuss.python.org/c/ideas/6"
--- /dev/null
+---
+name: Crash report
+about: A hard crash of the interpreter, possibly with a core dump
+labels: "type-crash"
+---
+
+<!--
+ Use this template for hard crashes of the interpreter, segmentation faults, failed C-level assertions, and similar.
+ Do not submit this form if you encounter an exception being unexpectedly raised from a Python function.
+ Most of the time, these should be filed as bugs, rather than crashes.
+
+ The CPython interpreter is itself written in a different programming language, C.
+ For CPython, a "crash" is when Python itself fails, leading to a traceback in the C stack.
+-->
+
+**Crash report**
+
+Tell us what happened, ideally including a minimal, reproducible example (https://stackoverflow.com/help/minimal-reproducible-example).
+
+**Error messages**
+
+Enter any relevant error message caused by the crash, including a core dump if there is one.
+
+**Your environment**
+
+<!-- Include as many relevant details as possible about the environment you experienced the bug in -->
+
+- CPython versions tested on:
+- Operating system and architecture:
+
+<!--
+You can freely edit this text. Remove any lines you believe are unnecessary.
+-->
--- /dev/null
+---
+name: Documentation
+about: Report a problem with the documentation
+labels: "docs"
+---
+
+**Documentation**
+
+(A clear and concise description of the issue.)
--- /dev/null
+---
+name: Feature or enhancement
+about: Submit a proposal for a new CPython feature or enhancement
+labels: "type-feature"
+---
+
+**Feature or enhancement**
+
+(A clear and concise description of your proposal.)
+
+**Pitch**
+
+(Explain why this feature or enhancement should be implemented and how it would be used.
+ Add examples, if applicable.)
+
+**Previous discussion**
+
+<!--
+ New features to Python should first be discussed elsewhere before creating issues on GitHub,
+ for example in the "ideas" category (https://discuss.python.org/c/ideas/6) of discuss.python.org,
+ or the python-ideas mailing list (https://mail.python.org/mailman3/lists/python-ideas.python.org/).
+ Use this space to post links to the places where you have already discussed this feature proposal:
+-->
+
+
+<!--
+You can freely edit this text. Remove any lines you believe are unnecessary.
+-->
--- /dev/null
+<!--
+Thanks for your contribution!
+Please read this comment in its entirety. It's quite important.
+
+# Pull Request title
+
+It should be in the following format:
+
+```
+gh-NNNNN: Summary of the changes made
+```
+
+Where: gh-NNNNN refers to the GitHub issue number.
+
+Most PRs will require an issue number. Trivial changes, like fixing a typo, do not need an issue.
+
+# Backport Pull Request title
+
+If this is a backport PR (PR made against branches other than `main`),
+please ensure that the PR title is in the following format:
+
+```
+[X.Y] <title from the original PR> (GH-NNNN)
+```
+
+Where: [X.Y] is the branch name, e.g. [3.6].
+
+GH-NNNN refers to the PR number from `main`.
+
+-->
--- /dev/null
+# Security Policy
+
+## Supported Versions
+
+The Python team applies security fixes according to the table
+in [the devguide](
+https://devguide.python.org/#status-of-python-branches
+).
+
+## Reporting a Vulnerability
+
+Please read the guidelines on reporting security issues [on the
+official website](https://www.python.org/dev/security/) for
+instructions on how to report a security-related problem to
+the Python team responsibly.
+
+To reach the response team, email `security at python dot org`.
--- /dev/null
+version: 2
+updates:
+ - package-ecosystem: "github-actions"
+ directory: "/"
+ schedule:
+ interval: "monthly"
+ labels:
+ - "skip issue"
+ - "skip news"
+ ignore:
+ - dependency-name: "*"
+ update-types:
+ - "version-update:semver-minor"
+ - "version-update:semver-patch"
--- /dev/null
+{
+ "__comment": "Taken from vscode-cpptools's Extension/package.json gcc rule",
+ "problemMatcher": [
+ {
+ "owner": "gcc-problem-matcher",
+ "pattern": [
+ {
+ "regexp": "^(.*):(\\d+):(\\d+):\\s+(?:fatal\\s+)?(warning|error):\\s+(.*)$",
+ "file": 1,
+ "line": 2,
+ "column": 3,
+ "severity": 4,
+ "message": 5
+ }
+ ]
+ }
+ ]
+}
\ No newline at end of file
--- /dev/null
+{
+ "__comment": "Taken from vscode's vs/workbench/contrib/tasks/common/problemMatcher.ts msCompile rule",
+ "problemMatcher": [
+ {
+ "owner": "msvc-problem-matcher",
+ "pattern": [
+ {
+ "regexp": "^(?:\\s+\\d+\\>)?([^\\s].*)\\((\\d+),?(\\d+)?(?:,\\d+,\\d+)?\\)\\s*:\\s+(error|warning|info)\\s+(\\w{1,2}\\d+)\\s*:\\s*(.*)$",
+ "file": 1,
+ "line": 2,
+ "column": 3,
+ "severity": 4,
+ "code": 5,
+ "message": 6
+ }
+ ]
+ }
+ ]
+ }
\ No newline at end of file
--- /dev/null
+{
+ "problemMatcher": [
+ {
+ "owner": "sphinx-problem-matcher",
+ "pattern": [
+ {
+ "regexp": "^(.*):(\\d+):\\s+(\\w*):\\s+(.*)$",
+ "file": 1,
+ "line": 2,
+ "severity": 3,
+ "message": 4
+ }
+ ]
+ },
+ {
+ "owner": "sphinx-problem-matcher-loose",
+ "pattern": [
+ {
+ "_comment": "A bit of a looser pattern, doesn't look for line numbers, just looks for file names relying on them to start with / and end with .rst",
+ "regexp": "(\/.*\\.rst):\\s+(\\w*):\\s+(.*)$",
+ "file": 1,
+ "severity": 2,
+ "message": 3
+ }
+ ]
+ },
+ {
+ "owner": "sphinx-problem-matcher-loose-no-severity",
+ "pattern": [
+ {
+ "_comment": "Looks for file names ending with .rst and line numbers but without severity",
+ "regexp": "^(.*\\.rst):(\\d+):(.*)$",
+ "file": 1,
+ "line": 2,
+ "message": 3
+ }
+ ]
+ }
+ ]
+}
\ No newline at end of file
--- /dev/null
+name: Tests
+
+# gh-84728: "paths-ignore" is not used to skip documentation-only PRs, because
+# it prevents to mark a job as mandatory. A PR cannot be merged if a job is
+# mandatory but not scheduled because of "paths-ignore".
+on:
+ workflow_dispatch:
+ push:
+ branches:
+ - 'main'
+ - '3.11'
+ - '3.10'
+ - '3.9'
+ - '3.8'
+ - '3.7'
+ pull_request:
+ branches:
+ - 'main'
+ - '3.11'
+ - '3.10'
+ - '3.9'
+ - '3.8'
+ - '3.7'
+
+permissions:
+ contents: read
+
+concurrency:
+ group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+ cancel-in-progress: true
+
+jobs:
+ check_source:
+ name: 'Check for source changes'
+ runs-on: ubuntu-latest
+ outputs:
+ run_tests: ${{ steps.check.outputs.run_tests }}
+ run_ssl_tests: ${{ steps.check.outputs.run_ssl_tests }}
+ steps:
+ - uses: actions/checkout@v3
+ - name: Check for source changes
+ id: check
+ run: |
+ if [ -z "$GITHUB_BASE_REF" ]; then
+ echo "run_tests=true" >> $GITHUB_OUTPUT
+ echo "run_ssl_tests=true" >> $GITHUB_OUTPUT
+ else
+ git fetch origin $GITHUB_BASE_REF --depth=1
+ # git diff "origin/$GITHUB_BASE_REF..." (3 dots) may be more
+ # reliable than git diff "origin/$GITHUB_BASE_REF.." (2 dots),
+ # but it requires to download more commits (this job uses
+ # "git fetch --depth=1").
+ #
+ # git diff "origin/$GITHUB_BASE_REF..." (3 dots) works with Git
+ # 2.26, but Git 2.28 is stricter and fails with "no merge base".
+ #
+ # git diff "origin/$GITHUB_BASE_REF.." (2 dots) should be enough on
+ # GitHub, since GitHub starts by merging origin/$GITHUB_BASE_REF
+ # into the PR branch anyway.
+ #
+ # https://github.com/python/core-workflow/issues/373
+ git diff --name-only origin/$GITHUB_BASE_REF.. | grep -qvE '(\.rst$|^Doc|^Misc)' && echo "run_tests=true" >> $GITHUB_OUTPUT || true
+ git diff --name-only origin/$GITHUB_BASE_REF.. | grep -qE '(ssl|hashlib|hmac|^.github)' && echo "run_ssl_tests=true" >> $GITHUB_OUTPUT || true
+ fi
+
+ check_abi:
+ name: 'Check if the ABI has changed'
+ runs-on: ubuntu-20.04
+ needs: check_source
+ if: needs.check_source.outputs.run_tests == 'true'
+ steps:
+ - uses: actions/checkout@v2
+ - uses: actions/setup-python@v2
+ - name: Install Dependencies
+ run: |
+ sudo ./.github/workflows/posix-deps-apt.sh
+ sudo apt-get install -yq abigail-tools
+ - name: Build CPython
+ env:
+ CFLAGS: -g3 -O0
+ run: |
+ # Build Python with the libpython dynamic library
+ ./configure --enable-shared
+ make -j4
+ - name: Check for changes in the ABI
+ run: |
+ if ! make check-abidump; then
+ echo "Generated ABI file is not up to date."
+ echo "Please, add the release manager of this branch as a reviewer of this PR."
+ echo ""
+ echo "To learn more about this check, please visit: https://devguide.python.org/setup/?highlight=abi#regenerate-the-abi-dump"
+ echo ""
+ exit 1
+ fi
+
+ check_generated_files:
+ name: 'Check if generated files are up to date'
+ runs-on: ubuntu-latest
+ needs: check_source
+ if: needs.check_source.outputs.run_tests == 'true'
+ steps:
+ - uses: actions/checkout@v3
+ - uses: actions/setup-python@v3
+ - name: Install Dependencies
+ run: sudo ./.github/workflows/posix-deps-apt.sh
+ - name: Add ccache to PATH
+ run: echo "PATH=/usr/lib/ccache:$PATH" >> $GITHUB_ENV
+ - name: Configure ccache action
+ uses: hendrikmuhs/ccache-action@v1.2
+ - name: Check Autoconf version 2.69 and aclocal 1.16.3
+ run: |
+ grep "Generated by GNU Autoconf 2.69" configure
+ grep "aclocal 1.16.3" aclocal.m4
+ grep -q "runstatedir" configure
+ grep -q "PKG_PROG_PKG_CONFIG" aclocal.m4
+ - name: Configure CPython
+ run: |
+ # Build Python with the libpython dynamic library
+ ./configure --with-pydebug --enable-shared
+ - name: Regenerate autoconf files with container image
+ run: make regen-configure
+ - name: Build CPython
+ run: |
+ # Deepfreeze will usually cause global objects to be added or removed,
+ # so we run it before regen-global-objects gets rum (in regen-all).
+ make regen-deepfreeze
+ make -j4 regen-all
+ make regen-stdlib-module-names
+ - name: Check for changes
+ run: |
+ git add -u
+ changes=$(git status --porcelain)
+ # Check for changes in regenerated files
+ if test -n "$changes"; then
+ echo "Generated files not up to date."
+ echo "Perhaps you forgot to run make regen-all or build.bat --regen. ;)"
+ echo "configure files must be regenerated with a specific version of autoconf."
+ echo "$changes"
+ echo ""
+ git diff --staged || true
+ exit 1
+ fi
+ - name: Check exported libpython symbols
+ run: make smelly
+ - name: Check limited ABI symbols
+ run: make check-limited-abi
+
+ build_win32:
+ name: 'Windows (x86)'
+ runs-on: windows-latest
+ needs: check_source
+ if: needs.check_source.outputs.run_tests == 'true'
+ env:
+ IncludeUwp: 'true'
+ steps:
+ - uses: actions/checkout@v3
+ - name: Build CPython
+ run: .\PCbuild\build.bat -e -d -p Win32
+ timeout-minutes: 30
+ - name: Display build info
+ run: .\python.bat -m test.pythoninfo
+ - name: Tests
+ run: .\PCbuild\rt.bat -p Win32 -d -q -uall -u-cpu -rwW --slowest --timeout=1200 -j0
+
+ build_win_amd64:
+ name: 'Windows (x64)'
+ runs-on: windows-latest
+ needs: check_source
+ if: needs.check_source.outputs.run_tests == 'true'
+ env:
+ IncludeUwp: 'true'
+ steps:
+ - uses: actions/checkout@v3
+ - name: Register MSVC problem matcher
+ run: echo "::add-matcher::.github/problem-matchers/msvc.json"
+ - name: Build CPython
+ run: .\PCbuild\build.bat -e -d -p x64
+ timeout-minutes: 30
+ - name: Display build info
+ run: .\python.bat -m test.pythoninfo
+ - name: Tests
+ run: .\PCbuild\rt.bat -p x64 -d -q -uall -u-cpu -rwW --slowest --timeout=1200 -j0
+
+ build_macos:
+ name: 'macOS'
+ runs-on: macos-latest
+ needs: check_source
+ if: needs.check_source.outputs.run_tests == 'true'
+ env:
+ PYTHONSTRICTEXTENSIONBUILD: 1
+ steps:
+ - uses: actions/checkout@v3
+ - name: Prepare homebrew environment variables
+ run: |
+ echo "LDFLAGS=-L$(brew --prefix tcl-tk)/lib" >> $GITHUB_ENV
+ echo "PKG_CONFIG_PATH=$(brew --prefix openssl@1.1)/lib/pkgconfig:$(brew --prefix tcl-tk)/lib/pkgconfig" >> $GITHUB_ENV
+ - name: Configure CPython
+ run: ./configure --with-pydebug --prefix=/opt/python-dev
+ - name: Build CPython
+ run: make -j4
+ - name: Display build info
+ run: make pythoninfo
+ - name: Tests
+ run: make buildbottest TESTOPTS="-j4 -uall,-cpu"
+
+ build_ubuntu:
+ name: 'Ubuntu'
+ runs-on: ubuntu-20.04
+ needs: check_source
+ if: needs.check_source.outputs.run_tests == 'true'
+ env:
+ OPENSSL_VER: 1.1.1q
+ PYTHONSTRICTEXTENSIONBUILD: 1
+ steps:
+ - uses: actions/checkout@v3
+ - name: Register gcc problem matcher
+ run: echo "::add-matcher::.github/problem-matchers/gcc.json"
+ - name: Install Dependencies
+ run: sudo ./.github/workflows/posix-deps-apt.sh
+ - name: Configure OpenSSL env vars
+ run: |
+ echo "MULTISSL_DIR=${GITHUB_WORKSPACE}/multissl" >> $GITHUB_ENV
+ echo "OPENSSL_DIR=${GITHUB_WORKSPACE}/multissl/openssl/${OPENSSL_VER}" >> $GITHUB_ENV
+ echo "LD_LIBRARY_PATH=${GITHUB_WORKSPACE}/multissl/openssl/${OPENSSL_VER}/lib" >> $GITHUB_ENV
+ - name: 'Restore OpenSSL build'
+ id: cache-openssl
+ uses: actions/cache@v3
+ with:
+ path: ./multissl/openssl/${{ env.OPENSSL_VER }}
+ key: ${{ runner.os }}-multissl-openssl-${{ env.OPENSSL_VER }}
+ - name: Install OpenSSL
+ if: steps.cache-openssl.outputs.cache-hit != 'true'
+ run: python3 Tools/ssl/multissltests.py --steps=library --base-directory $MULTISSL_DIR --openssl $OPENSSL_VER --system Linux
+ - name: Add ccache to PATH
+ run: |
+ echo "PATH=/usr/lib/ccache:$PATH" >> $GITHUB_ENV
+ - name: Configure ccache action
+ uses: hendrikmuhs/ccache-action@v1.2
+ - name: Setup directory envs for out-of-tree builds
+ run: |
+ echo "CPYTHON_RO_SRCDIR=$(realpath -m ${GITHUB_WORKSPACE}/../cpython-ro-srcdir)" >> $GITHUB_ENV
+ echo "CPYTHON_BUILDDIR=$(realpath -m ${GITHUB_WORKSPACE}/../cpython-builddir)" >> $GITHUB_ENV
+ - name: Create directories for read-only out-of-tree builds
+ run: mkdir -p $CPYTHON_RO_SRCDIR $CPYTHON_BUILDDIR
+ - name: Bind mount sources read-only
+ run: sudo mount --bind -o ro $GITHUB_WORKSPACE $CPYTHON_RO_SRCDIR
+ - name: Configure CPython out-of-tree
+ working-directory: ${{ env.CPYTHON_BUILDDIR }}
+ run: ../cpython-ro-srcdir/configure --with-pydebug --with-openssl=$OPENSSL_DIR
+ - name: Build CPython out-of-tree
+ working-directory: ${{ env.CPYTHON_BUILDDIR }}
+ run: make -j4
+ - name: Display build info
+ working-directory: ${{ env.CPYTHON_BUILDDIR }}
+ run: make pythoninfo
+ - name: Remount sources writable for tests
+ # some tests write to srcdir, lack of pyc files slows down testing
+ run: sudo mount $CPYTHON_RO_SRCDIR -oremount,rw
+ - name: Tests
+ working-directory: ${{ env.CPYTHON_BUILDDIR }}
+ run: xvfb-run make buildbottest TESTOPTS="-j4 -uall,-cpu"
+
+ build_ubuntu_ssltests:
+ name: 'Ubuntu SSL tests with OpenSSL'
+ runs-on: ubuntu-20.04
+ needs: check_source
+ if: needs.check_source.outputs.run_tests == 'true' && needs.check_source.outputs.run_ssl_tests == 'true'
+ strategy:
+ fail-fast: false
+ matrix:
+ openssl_ver: [1.1.1q, 3.0.5]
+ env:
+ OPENSSL_VER: ${{ matrix.openssl_ver }}
+ MULTISSL_DIR: ${{ github.workspace }}/multissl
+ OPENSSL_DIR: ${{ github.workspace }}/multissl/openssl/${{ matrix.openssl_ver }}
+ LD_LIBRARY_PATH: ${{ github.workspace }}/multissl/openssl/${{ matrix.openssl_ver }}/lib
+ steps:
+ - uses: actions/checkout@v3
+ - name: Register gcc problem matcher
+ run: echo "::add-matcher::.github/problem-matchers/gcc.json"
+ - name: Install Dependencies
+ run: sudo ./.github/workflows/posix-deps-apt.sh
+ - name: Configure OpenSSL env vars
+ run: |
+ echo "MULTISSL_DIR=${GITHUB_WORKSPACE}/multissl" >> $GITHUB_ENV
+ echo "OPENSSL_DIR=${GITHUB_WORKSPACE}/multissl/openssl/${OPENSSL_VER}" >> $GITHUB_ENV
+ echo "LD_LIBRARY_PATH=${GITHUB_WORKSPACE}/multissl/openssl/${OPENSSL_VER}/lib" >> $GITHUB_ENV
+ - name: 'Restore OpenSSL build'
+ id: cache-openssl
+ uses: actions/cache@v3
+ with:
+ path: ./multissl/openssl/${{ env.OPENSSL_VER }}
+ key: ${{ runner.os }}-multissl-openssl-${{ env.OPENSSL_VER }}
+ - name: Install OpenSSL
+ if: steps.cache-openssl.outputs.cache-hit != 'true'
+ run: python3 Tools/ssl/multissltests.py --steps=library --base-directory $MULTISSL_DIR --openssl $OPENSSL_VER --system Linux
+ - name: Add ccache to PATH
+ run: |
+ echo "PATH=/usr/lib/ccache:$PATH" >> $GITHUB_ENV
+ - name: Configure ccache action
+ uses: hendrikmuhs/ccache-action@v1.2
+ - name: Configure CPython
+ run: ./configure --with-pydebug --with-openssl=$OPENSSL_DIR
+ - name: Build CPython
+ run: make -j4
+ - name: Display build info
+ run: make pythoninfo
+ - name: SSL tests
+ run: ./python Lib/test/ssltests.py
+
+
+ build_asan:
+ name: 'Address sanitizer'
+ runs-on: ubuntu-20.04
+ needs: check_source
+ if: needs.check_source.outputs.run_tests == 'true'
+ env:
+ OPENSSL_VER: 1.1.1q
+ PYTHONSTRICTEXTENSIONBUILD: 1
+ ASAN_OPTIONS: detect_leaks=0:allocator_may_return_null=1:handle_segv=0
+ steps:
+ - uses: actions/checkout@v3
+ - name: Register gcc problem matcher
+ run: echo "::add-matcher::.github/problem-matchers/gcc.json"
+ - name: Install Dependencies
+ run: sudo ./.github/workflows/posix-deps-apt.sh
+ - name: Configure OpenSSL env vars
+ run: |
+ echo "MULTISSL_DIR=${GITHUB_WORKSPACE}/multissl" >> $GITHUB_ENV
+ echo "OPENSSL_DIR=${GITHUB_WORKSPACE}/multissl/openssl/${OPENSSL_VER}" >> $GITHUB_ENV
+ echo "LD_LIBRARY_PATH=${GITHUB_WORKSPACE}/multissl/openssl/${OPENSSL_VER}/lib" >> $GITHUB_ENV
+ - name: 'Restore OpenSSL build'
+ id: cache-openssl
+ uses: actions/cache@v3
+ with:
+ path: ./multissl/openssl/${{ env.OPENSSL_VER }}
+ key: ${{ runner.os }}-multissl-openssl-${{ env.OPENSSL_VER }}
+ - name: Install OpenSSL
+ if: steps.cache-openssl.outputs.cache-hit != 'true'
+ run: python3 Tools/ssl/multissltests.py --steps=library --base-directory $MULTISSL_DIR --openssl $OPENSSL_VER --system Linux
+ - name: Add ccache to PATH
+ run: |
+ echo "PATH=/usr/lib/ccache:$PATH" >> $GITHUB_ENV
+ - name: Configure ccache action
+ uses: hendrikmuhs/ccache-action@v1.2
+ - name: Configure CPython
+ run: ./configure --with-address-sanitizer --without-pymalloc
+ - name: Build CPython
+ run: make -j4
+ - name: Display build info
+ run: make pythoninfo
+ - name: Tests
+ run: xvfb-run make buildbottest TESTOPTS="-j4 -uall,-cpu"
--- /dev/null
+name: TestsMSI
+
+on:
+ workflow_dispatch:
+ push:
+ branches:
+ - 'main'
+ - '3.11'
+ - '3.10'
+ - '3.9'
+ - '3.8'
+ - '3.7'
+ paths:
+ - 'Tools/msi/**'
+ pull_request:
+ branches:
+ - 'main'
+ - '3.11'
+ - '3.10'
+ - '3.9'
+ - '3.8'
+ - '3.7'
+ paths:
+ - 'Tools/msi/**'
+
+permissions:
+ contents: read
+
+concurrency:
+ group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+ cancel-in-progress: true
+
+jobs:
+ build_win32:
+ name: 'Windows (x86) Installer'
+ runs-on: windows-latest
+ steps:
+ - uses: actions/checkout@v3
+ - name: Build CPython installer
+ run: .\Tools\msi\build.bat -x86
+
+ build_win_amd64:
+ name: 'Windows (x64) Installer'
+ runs-on: windows-latest
+ steps:
+ - uses: actions/checkout@v3
+ - name: Build CPython installer
+ run: .\Tools\msi\build.bat -x64
+
+ build_win_arm64:
+ name: 'Windows (ARM64) Installer'
+ runs-on: windows-latest
+ steps:
+ - uses: actions/checkout@v3
+ - name: Build CPython installer
+ run: .\Tools\msi\build.bat -arm64
--- /dev/null
+name: Docs
+
+on:
+ workflow_dispatch:
+ #push:
+ # branches:
+ # - 'main'
+ # - '3.11'
+ # - '3.10'
+ # - '3.9'
+ # - '3.8'
+ # - '3.7'
+ # paths:
+ # - 'Doc/**'
+ pull_request:
+ branches:
+ - 'main'
+ - '3.11'
+ - '3.10'
+ - '3.9'
+ - '3.8'
+ - '3.7'
+ paths:
+ - 'Doc/**'
+ - 'Misc/**'
+ - '.github/workflows/doc.yml'
+
+permissions:
+ contents: read
+
+concurrency:
+ group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+ cancel-in-progress: true
+
+jobs:
+ build_doc:
+ name: 'Docs'
+ runs-on: ubuntu-latest
+ steps:
+ - uses: actions/checkout@v3
+ - name: Register Sphinx problem matcher
+ run: echo "::add-matcher::.github/problem-matchers/sphinx.json"
+ - name: 'Set up Python'
+ uses: actions/setup-python@v4
+ with:
+ python-version: '3'
+ cache: 'pip'
+ cache-dependency-path: 'Doc/requirements.txt'
+ - name: 'Install build dependencies'
+ run: make -C Doc/ venv
+ - name: 'Check documentation'
+ run: make -C Doc/ check
+ - name: 'Build HTML documentation'
+ run: make -C Doc/ SPHINXOPTS="-q" SPHINXERRORHANDLING="-W --keep-going" html
+ - name: 'Upload'
+ uses: actions/upload-artifact@v3
+ with:
+ name: doc-html
+ path: Doc/build/html
+
+ # Run "doctest" on HEAD as new syntax doesn't exist in the latest stable release
+ doctest:
+ name: 'Doctest'
+ runs-on: ubuntu-latest
+ steps:
+ - uses: actions/checkout@v3
+ - name: Register Sphinx problem matcher
+ run: echo "::add-matcher::.github/problem-matchers/sphinx.json"
+ - uses: actions/cache@v3
+ with:
+ path: ~/.cache/pip
+ key: ubuntu-doc-${{ hashFiles('Doc/requirements.txt') }}
+ restore-keys: |
+ ubuntu-doc-
+ - name: 'Install Dependencies'
+ run: sudo ./.github/workflows/posix-deps-apt.sh && sudo apt-get install wamerican
+ - name: 'Configure CPython'
+ run: ./configure --with-pydebug
+ - name: 'Build CPython'
+ run: make -j4
+ - name: 'Install build dependencies'
+ run: make -C Doc/ PYTHON=../python venv
+ # Use "xvfb-run" since some doctest tests open GUI windows
+ - name: 'Run documentation doctest'
+ run: xvfb-run make -C Doc/ PYTHON=../python SPHINXOPTS="-q" SPHINXERRORHANDLING="-W --keep-going" doctest
--- /dev/null
+name: new-bugs-announce notifier
+
+on:
+ issues:
+ types:
+ - opened
+
+permissions:
+ issues: read
+
+jobs:
+ notify-new-bugs-announce:
+ runs-on: ubuntu-latest
+ steps:
+ - uses: actions/setup-node@v3
+ with:
+ node-version: 14
+ - run: npm install mailgun.js form-data
+ - name: Send notification
+ uses: actions/github-script@v6
+ env:
+ MAILGUN_API_KEY: ${{ secrets.PSF_MAILGUN_KEY }}
+ with:
+ script: |
+ const Mailgun = require("mailgun.js");
+ const formData = require('form-data');
+ const mailgun = new Mailgun(formData);
+ const DOMAIN = "mg.python.org";
+ const mg = mailgun.client({username: 'api', key: process.env.MAILGUN_API_KEY});
+ github.rest.issues.get({
+ issue_number: context.issue.number,
+ owner: context.repo.owner,
+ repo: context.repo.repo,
+ })
+ .then(function(issue) {
+ const payload = {
+ author : issue.data.user.login,
+ issue : issue.data.number,
+ title : issue.data.title,
+ url : issue.data.html_url,
+ labels : issue.data.labels.map(label => { return label.name }).join(", "),
+ assignee : issue.data.assignees.map(assignee => { return assignee.login }),
+ body : issue.data.body
+ };
+
+ const data = {
+ from: "CPython Issues <github@mg.python.org>",
+ to: "new-bugs-announce@python.org",
+ subject: `[Issue ${issue.data.number}] ${issue.data.title}`,
+ template: "new-github-issue",
+ 'o:tracking-clicks': 'no',
+ 'h:X-Mailgun-Variables': JSON.stringify(payload)
+ };
+ return mg.messages.create(DOMAIN, data)
+ })
+ .then(msg => console.log(msg));
--- /dev/null
+#!/bin/sh
+apt-get update
+
+apt-get -yq install \
+ build-essential \
+ pkg-config \
+ ccache \
+ gdb \
+ lcov \
+ libb2-dev \
+ libbz2-dev \
+ libffi-dev \
+ libgdbm-dev \
+ libgdbm-compat-dev \
+ liblzma-dev \
+ libncurses5-dev \
+ libreadline6-dev \
+ libsqlite3-dev \
+ libssl-dev \
+ lzma \
+ lzma-dev \
+ tk-dev \
+ uuid-dev \
+ xvfb \
+ zlib1g-dev
--- /dev/null
+set -ex
+
+export DEBIAN_FRONTEND=noninteractive
+./.github/workflows/posix-deps-apt.sh
+apt-get install -yq abigail-tools python3
+export CFLAGS="-g3 -O0"
+./configure --enable-shared && make
+make regen-abidump
--- /dev/null
+name: Mark stale pull requests
+
+on:
+ schedule:
+ - cron: "0 0 * * *"
+
+permissions:
+ pull-requests: write
+
+jobs:
+ stale:
+ if: github.repository_owner == 'python'
+
+ runs-on: ubuntu-latest
+
+ steps:
+ - name: "Check PRs"
+ uses: actions/stale@v5
+ with:
+ repo-token: ${{ secrets.GITHUB_TOKEN }}
+ stale-pr-message: 'This PR is stale because it has been open for 30 days with no activity.'
+ stale-pr-label: 'stale'
+ days-before-issue-stale: -1
+ days-before-pr-stale: 30
+ days-before-close: -1
+ ascending: true
+ operations-per-run: 120
--- /dev/null
+name: Verify bundled pip and setuptools
+
+on:
+ workflow_dispatch:
+ push:
+ paths:
+ - 'Lib/ensurepip/_bundled/**'
+ - '.github/workflows/verify-ensurepip-wheels.yml'
+ - 'Tools/scripts/verify_ensurepip_wheels.py'
+ pull_request:
+ paths:
+ - 'Lib/ensurepip/_bundled/**'
+ - '.github/workflows/verify-ensurepip-wheels.yml'
+ - 'Tools/scripts/verify_ensurepip_wheels.py'
+
+permissions:
+ contents: read
+
+concurrency:
+ group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+ cancel-in-progress: true
+
+jobs:
+ verify:
+ runs-on: ubuntu-latest
+ steps:
+ - uses: actions/checkout@v3
+ - uses: actions/setup-python@v4
+ with:
+ python-version: '3'
+ - name: Compare checksums of bundled pip and setuptools to ones published on PyPI
+ run: ./Tools/scripts/verify_ensurepip_wheels.py
--- /dev/null
+#####
+# First, rules intended to apply in all subdirectories.
+# These contain no slash, or only a trailing slash.
+
+*.cover
+*.iml
+*.o
+*.a
+*.so
+*.so.*
+*.dylib
+*.dll
+*.wasm
+*.orig
+*.pyc
+*.pyd
+*.pyo
+*.rej
+*.swp
+*~
+*.gc??
+*.profclang?
+*.profraw
+*.dyn
+.gdb_history
+.purify
+__pycache__
+.hg/
+.svn/
+.idea/
+tags
+TAGS
+.vs/
+.vscode/
+gmon.out
+.coverage
+.mypy_cache/
+.pytest_cache/
+.DS_Store
+
+*.exe
+!Lib/distutils/command/*.exe
+
+# Ignore core dumps... but not Tools/msi/core/ or the like.
+core
+!core/
+
+
+#####
+# Then, rules meant for a specific location relative to the repo root.
+# These must contain a non-trailing slash (and may also have a trailing slash.)
+
+Doc/build/
+Doc/venv/
+Doc/.venv/
+Doc/env/
+Doc/.env/
+Include/pydtrace_probes.h
+Lib/distutils/command/*.pdb
+Lib/lib2to3/*.pickle
+Lib/site-packages/*
+!Lib/site-packages/README.txt
+Lib/test/data/*
+!Lib/test/data/README
+/_bootstrap_python
+/Makefile
+/Makefile.pre
+Mac/Makefile
+Mac/PythonLauncher/Info.plist
+Mac/PythonLauncher/Makefile
+Mac/PythonLauncher/Python Launcher
+Mac/PythonLauncher/Python Launcher.app/*
+Mac/Resources/app/Info.plist
+Mac/Resources/framework/Info.plist
+Mac/pythonw
+/*.framework/
+Misc/python.pc
+Misc/python-embed.pc
+Misc/python-config.sh
+Modules/Setup.bootstrap
+Modules/Setup.config
+Modules/Setup.local
+Modules/Setup.stdlib
+Modules/config.c
+Modules/ld_so_aix
+Programs/_freeze_module
+Programs/_testembed
+PC/python_nt*.h
+PC/pythonnt_rc*.h
+Modules/python.exp
+PC/*/*.exp
+PC/*/*.lib
+PC/*/*.bsc
+PC/*/*.dll
+PC/*/*.pdb
+PC/*/*.user
+PC/*/*.ncb
+PC/*/*.suo
+PC/*/Win32-temp-*
+PC/*/x64-temp-*
+PC/*/amd64
+PCbuild/*.user
+PCbuild/*.suo
+PCbuild/*.*sdf
+PCbuild/*-pgi
+PCbuild/*-pgo
+PCbuild/*.VC.db
+PCbuild/*.VC.opendb
+PCbuild/amd64/
+PCbuild/arm32/
+PCbuild/arm64/
+PCbuild/obj/
+PCbuild/win32/
+Tools/unicode/data/
+/autom4te.cache
+/build/
+/builddir/
+/config.cache
+/config.log
+/config.status
+/config.status.lineno
+# hendrikmuhs/ccache-action@v1
+/.ccache
+/platform
+/profile-clean-stamp
+/profile-run-stamp
+/Python/deepfreeze/*.c
+/pybuilddir.txt
+/pyconfig.h
+/python-config
+/python-config.py
+/python.bat
+/python-gdb.py
+/python.exe-gdb.py
+/reflog.txt
+/coverage/
+/externals/
+/htmlcov/
+Tools/msi/obj
+Tools/ssl/amd64
+Tools/ssl/win32
+Tools/freeze/test/outdir
+
+# The frozen modules are always generated by the build so we don't
+# keep them in the repo. Also see Tools/scripts/freeze_modules.py.
+Python/frozen_modules/*.h
+# The manifest can be generated at any time with "make regen-frozen".
+Python/frozen_modules/MANIFEST
+
+# Two-trick pony for OSX and other case insensitive file systems:
+# Ignore ./python binary on Unix but still look into ./Python/ directory.
+/python
+!/Python/
document processor specifically written for the Python documentation.
.. _reStructuredText: https://docutils.sourceforge.io/rst.html
-.. _Sphinx: http://sphinx-doc.org/
+.. _Sphinx: https://www.sphinx-doc.org/
.. In the online version of these documents, you can submit comments and suggest
changes directly on the documentation pages.
status = converter(object, address);
where *object* is the Python object to be converted and *address* is the
- :c:type:`void*` argument that was passed to the ``PyArg_Parse*`` function.
+ :c:expr:`void*` argument that was passed to the ``PyArg_Parse*`` function.
The returned *status* should be ``1`` for a successful conversion and ``0`` if
the conversion has failed. When the conversion fails, the *converter* function
should raise an exception and leave the content of *address* unmodified.
The wrappers ensure that ``str[size-1]`` is always ``'\0'`` upon return. They
never write more than *size* bytes (including the trailing ``'\0'``) into str.
Both functions require that ``str != NULL``, ``size > 0``, ``format != NULL``
-and ``size < INT_MAX``.
+and ``size < INT_MAX``. Note that this means there is no equivalent to the C99
+``n = snprintf(NULL, 0, ...)`` which would determine the necessary buffer size.
The return value (*rv*) for these functions should be interpreted as follows:
.. c:function:: PyObject* PyDict_GetItemString(PyObject *p, const char *key)
This is the same as :c:func:`PyDict_GetItem`, but *key* is specified as a
- :c:type:`const char*`, rather than a :c:expr:`PyObject*`.
+ :c:expr:`const char*`, rather than a :c:expr:`PyObject*`.
Note that exceptions which occur while calling :meth:`__hash__` and
:meth:`__eq__` methods and creating a temporary string object
See also :ref:`Reflection <reflection>`.
+.. c:var:: PyTypeObject PyFrame_Type
+
+ The type of frame objects.
+ It is the same object as :py:class:`types.FrameType` in the Python layer.
+
+ .. versionchanged:: 3.11
+
+ Previously, this type was only available after including
+ ``<frameobject.h>``.
+
+.. c:function:: int PyFrame_Check(PyObject *obj)
+
+ Return non-zero if *obj* is a frame object.
+
+ .. versionchanged:: 3.11
+
+ Previously, this function was only available after including
+ ``<frameobject.h>``.
.. c:function:: PyFrameObject* PyFrame_GetBack(PyFrameObject *frame)
.. note::
None of these API functions handle memory management on behalf of the
- :c:type:`void*` values. You need to allocate and deallocate them yourself.
- If the :c:type:`void*` values happen to be :c:expr:`PyObject*`, these
+ :c:expr:`void*` values. You need to allocate and deallocate them yourself.
+ If the :c:expr:`void*` values happen to be :c:expr:`PyObject*`, these
functions don't do refcount operations on them either.
.. _thread-specific-storage-api:
.. note::
A freed key becomes a dangling pointer. You should reset the key to
- `NULL`.
+ ``NULL``.
Methods
.. c:member:: int configure_locale
- Set the LC_CTYPE locale to the user preferred locale?
+ Set the LC_CTYPE locale to the user preferred locale.
If equals to ``0``, set :c:member:`~PyPreConfig.coerce_c_locale` and
:c:member:`~PyPreConfig.coerce_c_locale_warn` members to ``0``.
.. c:function:: long PyMarshal_ReadLongFromFile(FILE *file)
- Return a C :c:type:`long` from the data stream in a :c:expr:`FILE*` opened
+ Return a C :c:expr:`long` from the data stream in a :c:expr:`FILE*` opened
for reading. Only a 32-bit value can be read in using this function,
regardless of the native size of :c:expr:`long`.
.. c:function:: int PyMarshal_ReadShortFromFile(FILE *file)
- Return a C :c:type:`short` from the data stream in a :c:expr:`FILE*` opened
+ Return a C :c:expr:`short` from the data stream in a :c:expr:`FILE*` opened
for reading. Only a 16-bit value can be read in using this function,
regardless of the native size of :c:expr:`short`.
Allocator Domains
=================
+.. _allocator-domains:
+
All allocating functions belong to one of three different "domains" (see also
:c:type:`PyMemAllocatorDomain`). These domains represent different allocation
strategies and are optimized for different purposes. The specific details on
See also :c:member:`PyPreConfig.allocator` and :ref:`Preinitialize Python
with PyPreConfig <c-preinit>`.
+ .. warning::
+
+ :c:func:`PyMem_SetAllocator` does have the following contract:
+
+ * It can be called after :c:func:`Py_PreInitialize` and before
+ :c:func:`Py_InitializeFromConfig` to install a custom memory
+ allocator. There are no restrictions over the installed allocator
+ other than the ones imposed by the domain (for instance, the Raw
+ Domain allows the allocator to be called without the GIL held). See
+ :ref:`the section on allocator domains <allocator-domains>` for more
+ information.
+
+ * If called after Python has finish initializing (after
+ :c:func:`Py_InitializeFromConfig` has been called) the allocator
+ **must** wrap the existing allocator. Substituting the current
+ allocator for some other arbitrary one is **not supported**.
+
+
+
.. c:function:: void PyMem_SetupDebugHooks(void)
Setup :ref:`debug hooks in the Python memory allocators <pymem-debug-hooks>`
Equivalent to calling the Python class
:class:`types.GenericAlias`. The *origin* and *args* arguments set the
``GenericAlias``\ 's ``__origin__`` and ``__args__`` attributes respectively.
- *origin* should be a :c:type:`PyTypeObject*`, and *args* can be a
+ *origin* should be a :c:expr:`PyTypeObject*`, and *args* can be a
:c:expr:`PyTupleObject*` or any ``PyObject*``. If *args* passed is
not a tuple, a 1-tuple is automatically constructed and ``__args__`` is set
to ``(args,)``.
+------------------------------------------------+-----------------------------------+-------------------+---+---+---+---+
.. [#slots]
- A slot name in parentheses indicates it is (effectively) deprecated.
- Names in angle brackets should be treated as read-only.
- Names in square brackets are for internal use only.
- "<R>" (as a prefix) means the field is required (must be non-``NULL``).
+
+ **()**: A slot name in parentheses indicates it is (effectively) deprecated.
+
+ **<>**: Names in angle brackets should be initially set to ``NULL`` and
+ treated as read-only.
+
+ **[]**: Names in square brackets are for internal use only.
+
+ **<R>** (as a prefix) means the field is required (must be non-``NULL``).
+
.. [#cols] Columns:
**"O"**: set on :c:type:`PyBaseObject_Type`
**Inheritance:**
This flag is not inherited.
+ However, subclasses will not be instantiable unless they provide a
+ non-NULL :c:member:`~PyTypeObject.tp_new` (which is only possible
+ via the C API).
+
+ .. note::
+
+ To disallow instantiating a class directly but allow instantiating
+ its subclasses (e.g. for an :term:`abstract base class`),
+ do not use this flag.
+ Instead, make :c:member:`~PyTypeObject.tp_new` only succeed for
+ subclasses.
.. versionadded:: 3.10
If the instances of this type are weakly referenceable, this field is greater
than zero and contains the offset in the instance structure of the weak
reference list head (ignoring the GC header, if present); this offset is used by
- :c:func:`PyObject_ClearWeakRefs` and the :c:func:`PyWeakref_\*` functions. The
+ :c:func:`PyObject_ClearWeakRefs` and the ``PyWeakref_*`` functions. The
instance structure needs to include a field of type :c:expr:`PyObject*` which is
initialized to ``NULL``.
Tuple of base types.
- This is set for types created by a class statement. It should be ``NULL`` for
- statically defined types.
+ This field should be set to ``NULL`` and treated as read-only.
+ Python will fill it in when the type is :c:func:`initialized <PyType_Ready>`.
+
+ For dynamically created classes, the ``Py_tp_bases``
+ :c:type:`slot <PyType_Slot>` can be used instead of the *bases* argument
+ of :c:func:`PyType_FromSpecWithBases`.
+ The argument form is preferred.
+
+ .. warning::
+
+ Multiple inheritance does not work well for statically defined types.
+ If you set ``tp_bases`` to a tuple, Python will not raise an error,
+ but some slots will only be inherited from the first base.
**Inheritance:**
Tuple containing the expanded set of base types, starting with the type itself
and ending with :class:`object`, in Method Resolution Order.
+ This field should be set to ``NULL`` and treated as read-only.
+ Python will fill it in when the type is :c:func:`initialized <PyType_Ready>`.
**Inheritance:**
# Relative filename of the data files
refcount_file = 'data/refcounts.dat'
stable_abi_file = 'data/stable_abi.dat'
-
-# Sphinx 2 and Sphinx 3 compatibility
-# -----------------------------------
-
-# bpo-40204: Allow Sphinx 2 syntax in the C domain
-c_allow_pre_v3 = True
-
-# bpo-40204: Disable warnings on Sphinx 2 syntax of the C domain since the
-# documentation is built with -W (warnings treated as errors).
-c_warn_on_allowed_pre_v3 = False
-
-# Fix '!' not working with C domain when pre_v3 is enabled
-import sphinx
-
-if sphinx.version_info[:2] < (5, 3):
- from sphinx.domains.c import CXRefRole
-
- original_run = CXRefRole.run
-
- def new_run(self):
- if self.disabled:
- return super(CXRefRole, self).run()
- return original_run(self)
-
- CXRefRole.run = new_run
PyImport_Import:PyObject*:name:0:
PyImport_ImportFrozenModule:int:::
-PyImport_ImportFrozenModule:const char*:::
+PyImport_ImportFrozenModule:const char*:name::
PyImport_ImportFrozenModuleObject:int:::
-PyImport_ImportFrozenModuleObject:PyObject*::+1:
+PyImport_ImportFrozenModuleObject:PyObject*:name:+1:
PyImport_ImportModule:PyObject*::+1:
PyImport_ImportModule:const char*:name::
.. code-block:: shell-session
- $ /opt/bin/python3.4-config --cflags
- -I/opt/include/python3.4m -I/opt/include/python3.4m -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes
+ $ /opt/bin/python3.11-config --cflags
+ -I/opt/include/python3.11 -I/opt/include/python3.11 -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall
-* ``pythonX.Y-config --ldflags`` will give you the recommended flags when
- linking:
+* ``pythonX.Y-config --ldflags --embed`` will give you the recommended flags
+ when linking:
.. code-block:: shell-session
- $ /opt/bin/python3.4-config --ldflags
- -L/opt/lib/python3.4/config-3.4m -lpthread -ldl -lutil -lm -lpython3.4m -Xlinker -export-dynamic
+ $ /opt/bin/python3.11-config --ldflags --embed
+ -L/opt/lib/python3.11/config-3.11-x86_64-linux-gnu -L/opt/lib -lpython3.11 -lpthread -ldl -lutil -lm
.. note::
To avoid confusion between several Python installations (and especially
Python supports two pairs of attribute handlers; a type that supports attributes
only needs to implement the functions for one pair. The difference is that one
pair takes the name of the attribute as a :c:expr:`char\*`, while the other
-accepts a :c:type:`PyObject\*`. Each type can use whichever pair makes more
+accepts a :c:expr:`PyObject*`. Each type can use whichever pair makes more
sense for the implementation's convenience. ::
getattrfunc tp_getattr; /* char * version */
For simplicity, only the :c:expr:`char\*` version will be demonstrated here; the
type of the name parameter is the only difference between the :c:expr:`char\*`
-and :c:type:`PyObject\*` flavors of the interface. This example effectively does
+and :c:expr:`PyObject*` flavors of the interface. This example effectively does
the same thing as the generic example above, but does not use the generic
support added in Python 2.2. It explains how the handler functions are
called, so that if you do need to extend their functionality, you'll understand
also available at https://docs.python.org/3/download.html.
The documentation is written in reStructuredText and processed by `the Sphinx
-documentation tool <http://sphinx-doc.org/>`__. The reStructuredText source for
+documentation tool <https://www.sphinx-doc.org/>`__. The reStructuredText source for
the documentation is part of the Python source distribution.
---------------------------------------------
The Python project's infrastructure is located all over the world and is managed
-by the Python Infrastructure Team. Details `here <http://infra.psf.io>`__.
+by the Python Infrastructure Team. Details `here <https://infra.psf.io>`__.
Why is it called Python?
for pdb as an example.
The IDLE interactive development environment, which is part of the standard
-Python distribution (normally available as Tools/scripts/idle), includes a
-graphical debugger.
+Python distribution (normally available as
+`Tools/scripts/idle3 <https://github.com/python/cpython/blob/main/Tools/scripts/idle3>`_),
+includes a graphical debugger.
PythonWin is a Python IDE that includes a GUI debugger based on pdb. The
PythonWin debugger colors breakpoints and has quite a few cool features such as
Python binary to produce a single executable.
One is to use the freeze tool, which is included in the Python source tree as
-``Tools/freeze``. It converts Python byte code to C arrays; with a C compiler you can
+`Tools/freeze <https://github.com/python/cpython/tree/main/Tools/freeze>`_.
+It converts Python byte code to C arrays; with a C compiler you can
embed all your modules into a new program, which is then linked with the
standard Python modules.
Why am I getting an UnboundLocalError when the variable has a value?
--------------------------------------------------------------------
-It can be a surprise to get the UnboundLocalError in previously working
+It can be a surprise to get the :exc:`UnboundLocalError` in previously working
code when it is modified by adding an assignment statement somewhere in
the body of a function.
>>> x = 10
>>> def bar():
... print(x)
+ ...
>>> bar()
10
... print(x)
... x += 1
-results in an UnboundLocalError:
+results in an :exc:`!UnboundLocalError`:
>>> foo()
Traceback (most recent call last):
... global x
... print(x)
... x += 1
+ ...
>>> foobar()
10
... x += 1
... bar()
... print(x)
+ ...
>>> foo()
10
11
import mod
print(config.x)
-Note that using a module is also the basis for implementing the Singleton design
+Note that using a module is also the basis for implementing the singleton design
pattern, for the same reason.
It's good practice if you import modules in the following order:
-1. standard library modules -- e.g. ``sys``, ``os``, ``getopt``, ``re``
+1. standard library modules -- e.g. :mod:`sys`, :mod:`os`, :mod:`argparse`, :mod:`re`
2. third-party library modules (anything installed in Python's site-packages
- directory) -- e.g. mx.DateTime, ZODB, PIL.Image, etc.
+ directory) -- e.g. :mod:`!dateutil`, :mod:`!requests`, :mod:`!PIL.Image`
3. locally developed modules
It is sometimes necessary to move imports to a function or class to avoid
Some operations (for example ``y.append(10)`` and ``y.sort()``) mutate the
object, whereas superficially similar operations (for example ``y = y + [10]``
-and ``sorted(y)``) create a new object. In general in Python (and in all cases
+and :func:`sorted(y) <sorted>`) create a new object. In general in Python (and in all cases
in the standard library) a method that mutates an object will return ``None``
to help avoid getting the two types of operations confused. So if you
mistakenly write ``y.sort()`` thinking it will give you a sorted copy of ``y``,
How can I find the methods or attributes of an object?
------------------------------------------------------
-For an instance x of a user-defined class, ``dir(x)`` returns an alphabetized
+For an instance ``x`` of a user-defined class, :func:`dir(x) <dir>` returns an alphabetized
list of the names containing the instance attributes and methods and attributes
defined by its class.
<__main__.A object at 0x16D07CC>
Arguably the class has a name: even though it is bound to two names and invoked
-through the name B the created instance is still reported as an instance of
-class A. However, it is impossible to say whether the instance's name is a or
-b, since both names are bound to the same value.
+through the name ``B`` the created instance is still reported as an instance of
+class ``A``. However, it is impossible to say whether the instance's name is ``a`` or
+``b``, since both names are bound to the same value.
Generally speaking it should not be necessary for your code to "know the names"
of particular values. Unless you are deliberately writing introspective
----------------------------------------------------------
Trying to lookup an ``int`` literal attribute in the normal manner gives
-a syntax error because the period is seen as a decimal point::
+a :exc:`SyntaxError` because the period is seen as a decimal point::
>>> 1.__class__
File "<stdin>", line 1
How do I convert a number to a string?
--------------------------------------
-To convert, e.g., the number 144 to the string '144', use the built-in type
+To convert, e.g., the number ``144`` to the string ``'144'``, use the built-in type
constructor :func:`str`. If you want a hexadecimal or octal representation, use
the built-in functions :func:`hex` or :func:`oct`. For fancy formatting, see
the :ref:`f-strings` and :ref:`formatstrings` sections,
For simple input parsing, the easiest approach is usually to split the line into
whitespace-delimited words using the :meth:`~str.split` method of string objects
and then convert decimal strings to numeric values using :func:`int` or
-:func:`float`. ``split()`` supports an optional "sep" parameter which is useful
+:func:`float`. :meth:`!split()` supports an optional "sep" parameter which is useful
if the line uses something other than whitespace as a separator.
For more complicated input parsing, regular expressions are more powerful
-than C's :c:func:`sscanf` and better suited for the task.
+than C's ``sscanf`` and better suited for the task.
What does 'UnicodeDecodeError' or 'UnicodeEncodeError' error mean?
The ``array`` module also provides methods for creating arrays of fixed types
with compact representations, but they are slower to index than lists. Also
-note that NumPy and other third party packages define array-like structures with
+note that `NumPy <https://numpy.org/>`_
+and other third party packages define array-like structures with
various characteristics as well.
-To get Lisp-style linked lists, you can emulate cons cells using tuples::
+To get Lisp-style linked lists, you can emulate *cons cells* using tuples::
lisp_list = ("like", ("this", ("example", None) ) )
If mutability is desired, you could use lists instead of tuples. Here the
-analogue of lisp car is ``lisp_list[0]`` and the analogue of cdr is
+analogue of a Lisp *car* is ``lisp_list[0]`` and the analogue of *cdr* is
``lisp_list[1]``. Only do this if you're sure you really need to, because it's
usually a lot slower than using Python lists.
A = [[None] * w for i in range(h)]
Or, you can use an extension that provides a matrix datatype; `NumPy
-<http://www.numpy.org/>`_ is the best known.
+<https://numpy.org/>`_ is the best known.
-How do I apply a method to a sequence of objects?
--------------------------------------------------
+How do I apply a method or function to a sequence of objects?
+-------------------------------------------------------------
-Use a list comprehension::
+To call a method or function and accumulate the return values is a list,
+a :term:`list comprehension` is an elegant solution::
result = [obj.method() for obj in mylist]
+ result = [function(obj) for obj in mylist]
+
+To just run the method or function without saving the return values,
+a plain :keyword:`for` loop will suffice::
+
+ for obj in mylist:
+ obj.method()
+
+ for obj in mylist:
+ function(obj)
+
.. _faq-augmented-assignment-tuple-error:
Why does a_tuple[i] += ['item'] raise an exception when the addition works?
['foo', 'item']
To see why this happens, you need to know that (a) if an object implements an
-``__iadd__`` magic method, it gets called when the ``+=`` augmented assignment
+:meth:`~object.__iadd__` magic method, it gets called when the ``+=`` augmented
+assignment
is executed, and its return value is what gets used in the assignment statement;
-and (b) for lists, ``__iadd__`` is equivalent to calling ``extend`` on the list
+and (b) for lists, :meth:`!__iadd__` is equivalent to calling :meth:`~list.extend` on the list
and returning the list. That's why we say that for lists, ``+=`` is a
-"shorthand" for ``list.extend``::
+"shorthand" for :meth:`!list.extend`::
>>> a_list = []
>>> a_list += [1]
...
TypeError: 'tuple' object does not support item assignment
-The ``__iadd__`` succeeds, and thus the list is extended, but even though
+The :meth:`!__iadd__` succeeds, and thus the list is extended, but even though
``result`` points to the same object that ``a_tuple[0]`` already points to,
that final assignment still results in an error, because tuples are immutable.
How do I check if an object is an instance of a given class or of a subclass of it?
-----------------------------------------------------------------------------------
-Use the built-in function ``isinstance(obj, cls)``. You can check if an object
+Use the built-in function :func:`isinstance(obj, cls) <isinstance>`. You can
+check if an object
is an instance of any of a number of classes by providing a tuple instead of a
single class, e.g. ``isinstance(obj, (class1, class2, ...))``, and can also
check whether an object is one of Python's built-in types, e.g.
argument string to uppercase before calling the underlying
``self._outfile.write()`` method. All other methods are delegated to the
underlying ``self._outfile`` object. The delegation is accomplished via the
-
``__getattr__`` method; consult :ref:`the language reference <attribute-access>`
+
:meth:`~object.__getattr__` method; consult :ref:`the language reference <attribute-access>`
for more information about controlling attribute access.
Note that for more general cases delegation can get trickier. When attributes
-must be set as well as retrieved, the class must define a :meth:`__setattr__`
+must be set as well as retrieved, the class must define a :meth:`~object.__setattr__`
method too, and it must do so carefully. The basic implementation of
-:meth:`__setattr__` is roughly equivalent to the following::
+:meth:`!__setattr__` is roughly equivalent to the following::
class X:
...
self.__dict__[name] = value
...
-Most :meth:`__setattr__` implementations must modify ``self.__dict__`` to store
+Most :meth:`!__setattr__` implementations must modify
+:meth:`self.__dict__ <object.__dict__>` to store
local state for self without causing an infinite recursion.
There are several possible reasons for this.
-The del statement does not necessarily call :meth:`__del__` -- it simply
+The :keyword:`del` statement does not necessarily call :meth:`~object.__del__` -- it simply
decrements the object's reference count, and if this reaches zero
-:meth:`__del__` is called.
+:meth:`!__del__` is called.
If your data structures contain circular links (e.g. a tree where each child has
a parent reference and each parent has a list of children) the reference counts
will never go back to zero. Once in a while Python runs an algorithm to detect
such cycles, but the garbage collector might run some time after the last
-reference to your data structure vanishes, so your :meth:`__del__` method may be
+reference to your data structure vanishes, so your :meth:`!__del__` method may be
called at an inconvenient and random time. This is inconvenient if you're trying
-to reproduce a problem. Worse, the order in which object's :meth:`__del__`
+to reproduce a problem. Worse, the order in which object's :meth:`!__del__`
methods are executed is arbitrary. You can run :func:`gc.collect` to force a
collection, but there *are* pathological cases where objects will never be
collected.
Despite the cycle collector, it's still a good idea to define an explicit
``close()`` method on objects to be called whenever you're done with them. The
``close()`` method can then remove attributes that refer to subobjects. Don't
-call :meth:`__del__` directly -- :meth:`__del__` should call ``close()`` and
+call :meth:`!__del__` directly -- :meth:`!__del__` should call ``close()`` and
``close()`` should make sure that it can be called more than once for the same
object.
Normally, calling :func:`sys.exc_clear` will take care of this by clearing
the last recorded exception.
-Finally, if your :meth:`__del__` method raises an exception, a warning message
+Finally, if your :meth:`!__del__` method raises an exception, a warning message
is printed to :data:`sys.stderr`.
How can a subclass control what data is stored in an immutable instance?
------------------------------------------------------------------------
-When subclassing an immutable type, override the :meth:`__new__` method
-instead of the :meth:`__init__` method. The latter only runs *after* an
+When subclassing an immutable type, override the :meth:`~object.__new__` method
+instead of the :meth:`~object.__init__` method. The latter only runs *after* an
instance is created, which is too late to alter data in an immutable
instance.
attributes.
To make the *lru_cache* approach work when the *station_id* is mutable,
-the class needs to define the *__eq__* and *__hash__* methods so that
-the cache can detect relevant attribute updates::
+the class needs to define the :meth:`~object.__eq__` and :meth:`~object.__hash__`
+methods so that the cache can detect relevant attribute updates::
class Weather:
"Example with a mutable station identifier"
Embedding the Python interpreter in a Windows app can be summarized as follows:
-1. Do _not_ build Python into your .exe file directly. On Windows, Python must
+1. Do **not** build Python into your .exe file directly. On Windows, Python must
be a DLL to handle importing modules that are themselves DLL's. (This is the
first key undocumented fact.) Instead, link to :file:`python{NN}.dll`; it is
typically installed in ``C:\Windows\System``. *NN* is the Python version, a
2. If you use SWIG, it is easy to create a Python "extension module" that will
make the app's data and methods available to Python. SWIG will handle just
about all the grungy details for you. The result is C code that you link
- *into* your .exe file (!) You do _not_ have to create a DLL file, and this
+ *into* your .exe file (!) You do **not** have to create a DLL file, and this
also simplifies linking.
3. SWIG will create an init function (a C function) whose name depends on the
5. There are two problems with Python's C API which will become apparent if you
use a compiler other than MSVC, the compiler used to build pythonNN.dll.
- Problem 1: The so-called "Very High Level" functions that take FILE *
+ Problem 1: The so-called "Very High Level" functions that take ``FILE *``
arguments will not work in a multi-compiler environment because each
- compiler's notion of a struct FILE will be different. From an implementation
- standpoint these are very _low_ level functions.
+ compiler's notion of a ``struct FILE`` will be different. From an implementation
+ standpoint these are very low level functions.
Problem 2: SWIG generates the following code when generating wrappers to void
functions:
package
A Python :term:`module` which can contain submodules or recursively,
- subpackages. Technically, a package is a Python module with an
+ subpackages. Technically, a package is a Python module with a
``__path__`` attribute.
See also :term:`regular package` and :term:`namespace package`.
if args.quiet:
print(answer)
elif args.verbose:
- print("{} to the power {} equals {}".format(args.x, args.y, answer))
+ print(f"{args.x} to the power {args.y} equals {answer}")
else:
- print("{}^{} == {}".format(args.x, args.y, answer))
+ print(f"{args.x}^{args.y} == {answer}")
Note that slight difference in the usage text. Note the ``[-v | -q]``,
which tells us that we can either use ``-v`` or ``-q``,
.. highlight:: c
+.. _howto-clinic:
+
**********************
Argument Clinic How-To
**********************
... FRIDAY = auto()
... SATURDAY = auto()
... SUNDAY = auto()
+ ... WEEKEND = SATURDAY | SUNDAY
.. _enum-advanced-tutorial:
>>> list(Shape)
[<Shape.SQUARE: 2>, <Shape.DIAMOND: 1>, <Shape.CIRCLE: 3>]
+ >>> list(Weekday)
+ [<Weekday.MONDAY: 1>, <Weekday.TUESDAY: 2>, <Weekday.WEDNESDAY: 4>, <Weekday.THURSDAY: 8>, <Weekday.FRIDAY: 16>, <Weekday.SATURDAY: 32>, <Weekday.SUNDAY: 64>]
+
+Note that the aliases ``Shape.ALIAS_FOR_SQUARE`` and ``Weekday.WEEKEND`` aren't shown.
The special attribute ``__members__`` is a read-only ordered mapping of names
to members. It includes all names defined in the enumeration, including the
>>> [name for name, member in Shape.__members__.items() if member.name != name]
['ALIAS_FOR_SQUARE']
+.. note::
+
+ Aliases for flags include values with multiple flags set, such as ``3``,
+ and no flags set, i.e. ``0``.
+
Comparisons
-----------
False
Individual flags should have values that are powers of two (1, 2, 4, 8, ...),
-while combinations of flags won't::
+while combinations of flags will not::
>>> class Color(Flag):
... RED = auto()
.. _enum-class-differences:
-How are Enums different?
-------------------------
+How are Enums and Flags different?
+----------------------------------
Enums have a custom metaclass that affects many aspects of both derived :class:`Enum`
classes and their instances (members).
class are correct (such as :meth:`__new__`, :meth:`__getnewargs__`,
:meth:`__str__` and :meth:`__repr__`).
+Flag Classes
+^^^^^^^^^^^^
+
+Flags have an expanded view of aliasing: to be canonical, the value of a flag
+needs to be a power-of-two value, and not a duplicate name. So, in addition to the
+:class:`Enum` definition of alias, a flag with no value (a.k.a. ``0``) or with more than one
+power-of-two value (e.g. ``3``) is considered an alias.
Enum Members (aka instances)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
and then puts a custom :meth:`__new__` in place to ensure that no new ones are
ever instantiated by returning only the existing member instances.
+Flag Members
+^^^^^^^^^^^^
+
+Flag members can be iterated over just like the :class:`Flag` class, and only the
+canonical members will be returned. For example::
+
+ >>> list(Color)
+ [<Color.RED: 1>, <Color.GREEN: 2>, <Color.BLUE: 4>]
+
+(Note that ``BLACK``, ``PURPLE``, and ``WHITE`` do not show up.)
+
+Inverting a flag member returns the corresponding positive value,
+rather than a negative value --- for example::
+
+ >>> ~Color.RED
+ <Color.GREEN|BLUE: 6>
+
+Flag members have a length corresponding to the number of power-of-two values
+they contain. For example::
+
+ >>> len(Color.PURPLE)
+ 2
+
.. _enum-cookbook:
+Enum Cookbook
+-------------
+
While :class:`Enum`, :class:`IntEnum`, :class:`StrEnum`, :class:`Flag`, and
:class:`IntFlag` are expected to cover the majority of use-cases, they cannot
DuplicateFreeEnum
^^^^^^^^^^^^^^^^^
-Raises an error if a duplicate member name is found instead of creating an
+Raises an error if a duplicate member value is found instead of creating an
alias::
>>> class DuplicateFreeEnum(Enum):
The functools module
====================
-The :mod:`functools` module in Python 2.5 contains some higher-order functions.
+The :mod:`functools` module contains some higher-order functions.
A **higher-order function** takes one or more functions as input and returns a
new function. The most useful tool in this module is the
:func:`functools.partial` function.
.. After adding to limited API:
- If you use the `limited API <https://docs.python.org/3/c-api/stable.html>__,
+ If you use the :ref:`limited API <stable>,
you must update ``Py_LIMITED_API`` to ``0x030b0000``, losing ABI
compatibility with earlier versions.
Running a logging socket listener in production
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-To run a logging listener in production, you may need to use a process-management tool
-such as `Supervisor <http://supervisord.org/>`_. `Here
-<https://gist.github.com/vsajip/4b227eeec43817465ca835ca66f75e2b>`_ is a Gist which
-provides the bare-bones files to run the above functionality using Supervisor: you
-will need to change the ``/path/to/`` parts in the Gist to reflect the actual paths you
-want to use.
-
+.. _socket-listener-gist: https://gist.github.com/vsajip/4b227eeec43817465ca835ca66f75e2b
+
+To run a logging listener in production, you may need to use a
+process-management tool such as `Supervisor <http://supervisord.org/>`_.
+`Here is a Gist <socket-listener-gist_>`__
+which provides the bare-bones files to run the above functionality using
+Supervisor. It consists of the following files:
+
++-------------------------+----------------------------------------------------+
+| File | Purpose |
++=========================+====================================================+
+| :file:`prepare.sh` | A Bash script to prepare the environment for |
+| | testing |
++-------------------------+----------------------------------------------------+
+| :file:`supervisor.conf` | The Supervisor configuration file, which has |
+| | entries for the listener and a multi-process web |
+| | application |
++-------------------------+----------------------------------------------------+
+| :file:`ensure_app.sh` | A Bash script to ensure that Supervisor is running |
+| | with the above configuration |
++-------------------------+----------------------------------------------------+
+| :file:`log_listener.py` | The socket listener program which receives log |
+| | events and records them to a file |
++-------------------------+----------------------------------------------------+
+| :file:`main.py` | A simple web application which performs logging |
+| | via a socket connected to the listener |
++-------------------------+----------------------------------------------------+
+| :file:`webapp.json` | A JSON configuration file for the web application |
++-------------------------+----------------------------------------------------+
+| :file:`client.py` | A Python script to exercise the web application |
++-------------------------+----------------------------------------------------+
+
+The web application uses `Gunicorn <https://gunicorn.org/>`_, which is a
+popular web application server that starts multiple worker processes to handle
+requests. This example setup shows how the workers can write to the same log file
+without conflicting with one another --- they all go through the socket listener.
+
+To test these files, do the following in a POSIX environment:
+
+#. Download `the Gist <socket-listener-gist_>`__
+ as a ZIP archive using the :guilabel:`Download ZIP` button.
+
+#. Unzip the above files from the archive into a scratch directory.
+
+#. In the scratch directory, run ``bash prepare.sh`` to get things ready.
+ This creates a :file:`run` subdirectory to contain Supervisor-related and
+ log files, and a :file:`venv` subdirectory to contain a virtual environment
+ into which ``bottle``, ``gunicorn`` and ``supervisor`` are installed.
+
+#. Run ``bash ensure_app.sh`` to ensure that Supervisor is running with
+ the above configuration.
+
+#. Run ``venv/bin/python client.py`` to exercise the web application,
+ which will lead to records being written to the log.
+
+#. Inspect the log files in the :file:`run` subdirectory. You should see the
+ most recent log lines in files matching the pattern :file:`app.log*`. They won't be in
+ any particular order, since they have been handled concurrently by different
+ worker processes in a non-deterministic way.
+
+#. You can shut down the listener and the web application by running
+ ``venv/bin/supervisorctl -c supervisor.conf shutdown``.
+
+You may need to tweak the configuration files in the unlikely event that the
+configured ports clash with something else in your test environment.
.. _context-info:
WARNING:demo:Bar
>>>
-Of course, these above examples show output according to the format used by
+Of course, the examples above show output according to the format used by
:func:`~logging.basicConfig`, but you can use a different formatter when you
configure logging.
+Note that with the above scheme, you are somewhat at the mercy of buffering and
+the sequence of write calls which you are intercepting. For example, with the
+definition of ``LoggerWriter`` above, if you have the snippet
+
+.. code-block:: python
+
+ sys.stderr = LoggerWriter(logger, logging.WARNING)
+ 1 / 0
+
+then running the script results in
+
+.. code-block:: text
+
+ WARNING:demo:Traceback (most recent call last):
+
+ WARNING:demo: File "/home/runner/cookbook-loggerwriter/test.py", line 53, in <module>
+
+ WARNING:demo:
+ WARNING:demo:main()
+ WARNING:demo: File "/home/runner/cookbook-loggerwriter/test.py", line 49, in main
+
+ WARNING:demo:
+ WARNING:demo:1 / 0
+ WARNING:demo:ZeroDivisionError
+ WARNING:demo::
+ WARNING:demo:division by zero
+
+As you can see, this output isn't ideal. That's because the underlying code
+which writes to ``sys.stderr`` makes mutiple writes, each of which results in a
+separate logged line (for example, the last three lines above). To get around
+this problem, you need to buffer things and only output log lines when newlines
+are seen. Let's use a slghtly better implementation of ``LoggerWriter``:
+
+.. code-block:: python
+
+ class BufferingLoggerWriter(LoggerWriter):
+ def __init__(self, logger, level):
+ super().__init__(logger, level)
+ self.buffer = ''
+
+ def write(self, message):
+ if '\n' not in message:
+ self.buffer += message
+ else:
+ parts = message.split('\n')
+ if self.buffer:
+ s = self.buffer + parts.pop(0)
+ self.logger.log(self.level, s)
+ self.buffer = parts.pop()
+ for part in parts:
+ self.logger.log(self.level, part)
+
+This just buffers up stuff until a newline is seen, and then logs complete
+lines. With this approach, you get better output:
+
+.. code-block:: text
+
+ WARNING:demo:Traceback (most recent call last):
+ WARNING:demo: File "/home/runner/cookbook-loggerwriter/main.py", line 55, in <module>
+ WARNING:demo: main()
+ WARNING:demo: File "/home/runner/cookbook-loggerwriter/main.py", line 52, in main
+ WARNING:demo: 1/0
+ WARNING:demo:ZeroDivisionError: division by zero
+
+
.. patterns-to-avoid:
Patterns to avoid
:class:`functools.cmp_to_key` to wrap the comparison function
to make it usable as a key function::
- sorted(words, key=cmp_to_key(strcoll)
+ sorted(words, key=cmp_to_key(strcoll)) # locale-aware sort order
Odds and Ends
=============
Some good alternative discussions of Python's Unicode support are:
-* `Processing Text Files in Python 3 <http://python-notes.curiousefficiency.org/en/latest/python3/text_file_processing.html>`_, by Nick Coghlan.
+* `Processing Text Files in Python 3 <https://python-notes.curiousefficiency.org/en/latest/python3/text_file_processing.html>`_, by Nick Coghlan.
* `Pragmatic Unicode <https://nedbatchelder.com/text/unipain.html>`_, a PyCon 2012 presentation by Ned Batchelder.
The :class:`str` type is described in the Python library reference at
action_ Specify how an argument should be handled ``'store'``, ``'store_const'``, ``'store_true'``, ``'append'``, ``'append_const'``, ``'count'``, ``'help'``, ``'version'``
choices_ Limit values to a specific set of choices ``['foo', 'bar']``, ``range(1, 10)``, or :class:`~collections.abc.Container` instance
const_ Store a constant value
-default_ Default value used when an argument is not provided Defaults to *None*
+default_ Default value used when an argument is not provided Defaults to ``None``
dest_ Specify the attribute name used in the result namespace
help_ Help message for an argument
metavar_ Alternate display name for the argument as shown in help
* usage_ - The string describing the program usage (default: generated from
arguments added to parser)
- * description_ - Text to display before the argument help (default: none)
+ * description_ - Text to display before the argument help
+ (by default, no text)
- * epilog_ - Text to display after the argument help (default: none)
+ * epilog_ - Text to display after the argument help (by default, no text)
* parents_ - A list of :class:`ArgumentParser` objects whose arguments should
also be included
Namespace(out=<_io.TextIOWrapper name='file.txt' mode='w' encoding='UTF-8'>, raw=<_io.FileIO name='raw.dat' mode='wb'>)
FileType objects understand the pseudo-argument ``'-'`` and automatically
- convert this into ``sys.stdin`` for readable :class:`FileType` objects and
- ``sys.stdout`` for writable :class:`FileType` objects::
+ convert this into :data:`sys.stdin` for readable :class:`FileType` objects and
+ :data:`sys.stdout` for writable :class:`FileType` objects::
>>> parser = argparse.ArgumentParser()
>>> parser.add_argument('infile', type=argparse.FileType('r'))
.. method:: ArgumentParser.add_argument_group(title=None, description=None)
By default, :class:`ArgumentParser` groups command-line arguments into
- "positional arguments" and "optional arguments" when displaying help
+ "positional arguments" and "options" when displaying help
messages. When there is a better conceptual grouping of arguments than this
default one, appropriate groups can be created using the
:meth:`add_argument_group` method::
.. function:: literal_eval(node_or_string)
- Safely evaluate an expression node or a string containing a Python literal or
+ Evaluate an expression node or a string containing only a Python literal or
container display. The string or node provided may only consist of the
following Python literal structures: strings, bytes, numbers, tuples, lists,
dicts, sets, booleans, ``None`` and ``Ellipsis``.
- This can be used for safely evaluating strings containing Python values from
- untrusted sources without the need to parse the values oneself. It is not
- capable of evaluating arbitrarily complex expressions, for example involving
- operators or indexing.
+ This can be used for evaluating strings containing Python values without the
+ need to parse the values oneself. It is not capable of evaluating
+ arbitrarily complex expressions, for example involving operators or
+ indexing.
+
+ This function had been documented as "safe" in the past without defining
+ what that meant. That was misleading. This is specifically designed not to
+ execute Python code, unlike the more general :func:`eval`. There is no
+ namespace, no name lookups, or ability to call out. But it is not free from
+ attack: A relatively small input can lead to memory exhaustion or to C stack
+ exhaustion, crashing the process. There is also the possibility for
+ excessive CPU consumption denial of service on some inputs. Calling it on
+ untrusted data is thus not recommended.
.. warning::
- It is possible to crash the Python interpreter with a
- sufficiently large/complex string due to stack depth limitations
- in Python's AST compiler.
+ It is possible to crash the Python interpreter due to stack depth
+ limitations in Python's AST compiler.
It can raise :exc:`ValueError`, :exc:`TypeError`, :exc:`SyntaxError`,
:exc:`MemoryError` and :exc:`RecursionError` depending on the malformed
- Monitor for completion.
* - :func:`timeout`
- - Run with a timeout. Useful in cases when `wait_for` is not suitable.
+ - Run with a timeout. Useful in cases when ``wait_for`` is not suitable.
* - :func:`to_thread`
- Asynchronously run a function in a separate OS thread.
Network logging can block the event loop. It is recommended to use
-a separate thread for handling logs or use non-blocking IO.
+a separate thread for handling logs or use non-blocking IO. For example,
+see :ref:`blocking-handlers`.
.. _asyncio-coroutine-not-scheduled:
Return the running event loop in the current OS thread.
- If there is no running event loop a :exc:`RuntimeError` is raised.
+ Raise a :exc:`RuntimeError` if there is no running event loop.
+
This function can only be called from a coroutine or a callback.
.. versionadded:: 3.7
Get the current event loop.
- If there is no current event loop set in the current OS thread,
- the OS thread is main, and :func:`set_event_loop` has not yet
- been called, asyncio will create a new event loop and set it as the
- current one.
+ When called from a coroutine or a callback (e.g. scheduled with
+ call_soon or similar API), this function will always return the
+ running event loop.
+
+ If there is no running event loop set, the function will return
+ the result of ``get_event_loop_policy().get_event_loop()`` call.
Because this function has rather complex behavior (especially
when custom event loop policies are in use), using the
:func:`get_running_loop` function is preferred to :func:`get_event_loop`
in coroutines and callbacks.
- Consider also using the :func:`asyncio.run` function instead of using
- lower level functions to manually create and close an event loop.
+ As noted above, consider using the higher-level :func:`asyncio.run` function,
+ instead of using these lower level functions to manually create and close an
+ event loop.
.. deprecated:: 3.10
- Deprecation warning is emitted if there is no running event loop.
- In future Python releases, this function will be an alias of
- :func:`get_running_loop`.
+ Deprecation warning is emitted if there is no current event loop.
+ In Python 3.12 it will be an error.
+
+ .. note::
+ In Python versions 3.10.0--3.10.8 and 3.11.0 this function
+ (and other functions which used it implicitly) emitted a
+ :exc:`DeprecationWarning` if there was no running event loop, even if
+ the current loop was set.
.. function:: set_event_loop(loop)
- Set *loop* as a current event loop for the current OS thread.
+ Set *loop* as the current event loop for the current OS thread.
.. function:: new_event_loop()
Upgrade an existing transport-based connection to TLS.
- Return a new transport instance, that the *protocol* must start using
- immediately after the *await*. The *transport* instance passed to
- the *start_tls* method should never be used again.
+ Create a TLS coder/decoder instance and insert it between the *transport*
+ and the *protocol*. The coder/decoder implements both *transport*-facing
+ protocol and *protocol*-facing transport.
+
+ Return the created two-interface instance. After *await*, the *protocol*
+ must stop using the original *transport* and communicate with the returned
+ object only because the coder caches *protocol*-side data and sporadically
+ exchanges extra TLS session packets with *transport*.
Parameters:
- The **preferred** function to get the running event loop.
* - :func:`asyncio.get_event_loop`
- - Get an event loop instance (current or via the policy).
+ - Get an event loop instance (running or current via the current policy).
* - :func:`asyncio.set_event_loop`
- Set the event loop as current via the current policy.
Policies
========
-An event loop policy is a global (per-interpreter) object
+An event loop policy is a global object
used to get and set the current :ref:`event loop <asyncio-event-loop>`,
as well as create new event loops.
The default policy can be :ref:`replaced <asyncio-policy-get-set>` with
On Windows, :class:`ProactorEventLoop` is now used by default.
+ .. deprecated:: 3.11.1
+ :meth:`get_event_loop` now emits a :exc:`DeprecationWarning` if there
+ is no current event loop set and a new event loop has been implicitly
+ created. In Python 3.12 it will be an error.
+
.. class:: WindowsSelectorEventLoopPolicy
will be received. After all buffered data is flushed, the
protocol's :meth:`protocol.connection_lost()
<BaseProtocol.connection_lost>` method will be called with
- :const:`None` as its argument.
+ :const:`None` as its argument. The transport should not be
+ used once it is closed.
.. method:: BaseTransport.is_closing()
.. class:: StreamReader
Represents a reader object that provides APIs to read data
- from the IO stream.
+ from the IO stream. As an :term:`asynchronous iterable`, the
+ object supports the :keyword:`async for` statement.
It is not recommended to instantiate *StreamReader* objects
directly; use :func:`open_connection` and :func:`start_server`
* the :meth:`~asyncio.subprocess.Process.communicate` and
:meth:`~asyncio.subprocess.Process.wait` methods don't have a
- *timeout* parameter: use the :func:`wait_for` function;
+ *timeout* parameter: use the :func:`~asyncio.wait_for` function;
* the :meth:`Process.wait() <asyncio.subprocess.Process.wait>` method
is asynchronous, whereas :meth:`subprocess.Popen.wait` method
Coroutines
==========
+**Source code:** :source:`Lib/asyncio/coroutines.py`
+
+----------------------------------------------------
+
:term:`Coroutines <coroutine>` declared with the async/await syntax is the
preferred way of writing asyncio applications. For example, the following
snippet of code prints "hello", waits 1 second,
Creating Tasks
==============
+**Source code:** :source:`Lib/asyncio/tasks.py`
+
+-----------------------------------------------
+
.. function:: create_task(coro, *, name=None, context=None)
Wrap the *coro* :ref:`coroutine <coroutine>` into a :class:`Task`
Encode the :term:`bytes-like object` *s* using Base64 and return the encoded
:class:`bytes`.
- Optional *altchars* must be a :term:`bytes-like object` of at least
- length 2 (additional characters are ignored) which specifies an alternative
- alphabet for the ``+`` and ``/`` characters. This allows an application to e.g.
- generate URL or filesystem safe Base64 strings. The default is ``None``, for
- which the standard Base64 alphabet is used.
+ Optional *altchars* must be a :term:`bytes-like object` of length 2 which
+ specifies an alternative alphabet for the ``+`` and ``/`` characters.
+ This allows an application to e.g. generate URL or filesystem safe Base64
+ strings. The default is ``None``, for which the standard Base64 alphabet is used.
+
+ May assert or raise a a :exc:`ValueError` if the length of *altchars* is not 2. Raises a
+ :exc:`TypeError` if *altchars* is not a :term:`bytes-like object`.
.. function:: b64decode(s, altchars=None, validate=False)
Decode the Base64 encoded :term:`bytes-like object` or ASCII string
*s* and return the decoded :class:`bytes`.
- Optional *altchars* must be a :term:`bytes-like object` or ASCII string of
- at least length 2 (additional characters are ignored) which specifies the
- alternative alphabet used instead of the ``+`` and ``/`` characters.
+ Optional *altchars* must be a :term:`bytes-like object` or ASCII string
+ of length 2 which specifies the alternative alphabet used instead of the
+ ``+`` and ``/`` characters.
A :exc:`binascii.Error` exception is raised
if *s* is incorrectly padded.
For more information about the strict base64 check, see :func:`binascii.a2b_base64`
+ May assert or raise a :exc:`ValueError` if the length of *altchars* is not 2.
.. function:: standard_b64encode(s)
.. seealso::
* `Sorted Collections
- <http://www.grantjenks.com/docs/sortedcollections/>`_ is a high performance
+ <https://grantjenks.com/docs/sortedcollections/>`_ is a high performance
module that uses *bisect* to managed sorted collections of data.
* The `SortedCollection recipe
.. note::
- Underlying encoded files are always opened in binary mode.
+ If *encoding* is not ``None``, then the
+ underlying encoded files are always opened in binary mode.
No automatic conversion of ``'\n'`` is done on reading and writing.
The *mode* argument may be any binary mode acceptable to the built-in
:func:`open` function; the ``'b'`` is automatically added.
.. seealso::
+ Module :mod:`tomllib`
+ TOML is a well-specified format for application configuration files.
+ It is specifically designed to be an improved version of INI.
+
Module :mod:`shlex`
- Support for creating Unix shell-like mini-languages which can be used as
- an alternate format for application configuration files.
+ Support for creating Unix shell-like mini-languages which can also
+ be used for application configuration files.
Module :mod:`json`
- The json module implements a subset of JavaScript syntax which can also
- be used for this purpose.
+ The ``json`` module implements a subset of JavaScript syntax which is
+ sometimes used for configuration, but does not support comments.
.. testsetup::
A read-only property. Set to the value the variable had before
the :meth:`ContextVar.set` method call that created the token.
- It points to :attr:`Token.MISSING` is the variable was not set
+ It points to :attr:`Token.MISSING` if the variable was not set
before the call.
.. attribute:: Token.MISSING
.. attribute:: Dialect.skipinitialspace
- When :const:`True`, whitespace immediately following the *delimiter* is ignored.
+ When :const:`True`, spaces immediately following the *delimiter* are ignored.
The default is :const:`False`.
.. moduleauthor:: Thomas Heller <theller@python.net>
+**Source code:** :source:`Lib/ctypes`
+
--------------
:mod:`ctypes` is a foreign function library for Python. It provides C compatible
>>> printf(b"%f bottles of beer\n", 42.5)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
- ArgumentError: argument 2: exceptions.TypeError: Don't know how to convert parameter 2
+ ArgumentError: argument 2: TypeError: Don't know how to convert parameter 2
>>>
As has been mentioned before, all Python types except integers, strings, and
31
>>>
+.. _ctypes-calling-variadic-functions:
+
+Calling varadic functions
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+On a lot of platforms calling variadic functions through ctypes is exactly the same
+as calling functions with a fixed number of parameters. On some platforms, and in
+particular ARM64 for Apple Platforms, the calling convention for variadic functions
+is different than that for regular functions.
+
+On those platforms it is required to specify the *argtypes* attribute for the
+regular, non-variadic, function arguments:
+
+.. code-block:: python3
+
+ libc.printf.argtypes = [ctypes.c_char_p]
+
+Because specifying the attribute does inhibit portability it is adviced to always
+specify ``argtypes`` for all variadic functions.
+
.. _ctypes-calling-functions-with-own-custom-data-types:
>>> printf(b"%d %d %d", 1, 2, 3)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
- ArgumentError: argument 2: exceptions.TypeError: wrong type
+ ArgumentError: argument 2: TypeError: wrong type
>>> printf(b"%s %d %f\n", b"X", 2, 3)
X 2 3.000000
13
>>> strchr(b"abcdef", b"def")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
- ArgumentError: argument 2: exceptions.TypeError: one character string expected
+ ArgumentError: argument 2: TypeError: one character string expected
>>> print(strchr(b"abcdef", b"x"))
None
>>> strchr(b"abcdef", b"d")
.. moduleauthor:: Eric S. Raymond <esr@thyrsus.com>
.. sectionauthor:: Eric S. Raymond <esr@thyrsus.com>
+**Source code:** :source:`Lib/curses/ascii.py`
+
--------------
The :mod:`curses.ascii` module supplies name constants for ASCII characters and
.. sectionauthor:: Moshe Zadka <moshez@zadka.site.co.il>
.. sectionauthor:: Eric Raymond <esr@thyrsus.com>
+**Source code:** :source:`Lib/curses`
+
--------------
The :mod:`curses` module provides an interface to the curses library, the
class C:
...
- @dataclass(init=True, repr=True, eq=True, order=False, unsafe_hash=False, frozen=False, match_args=True, kw_only=False, slots=False, weakref_slot=False)
+ @dataclass(init=True, repr=True, eq=True, order=False, unsafe_hash=False, frozen=False,
+ match_args=True, kw_only=False, slots=False, weakref_slot=False)
class C:
- ...
+ ...
The parameters to :func:`dataclass` are:
.. versionchanged:: 3.11
If a field name is already included in the ``__slots__``
of a base class, it will not be included in the generated ``__slots__``
- to prevent `overriding them <https://docs.python.org/3/reference/datamodel.html#notes-on-using-slots>`_.
+ to prevent :ref:`overriding them <datamodel-note-slots>`.
Therefore, do not use ``__slots__`` to retrieve the field names of a
dataclass. Use :func:`fields` instead.
To be able to determine inherited slots,
@dataclass
class Point:
- x: float
- _: KW_ONLY
- y: float
- z: float
+ x: float
+ _: KW_ONLY
+ y: float
+ z: float
p = Point(0, y=1.5, z=2.0)
@dataclass
class C:
i: int
- j: int = None
- database: InitVar[DatabaseType] = None
+ j: int | None = None
+ database: InitVar[DatabaseType | None] = None
def __post_init__(self, database):
if self.j is None and database is not None:
::
class IntConversionDescriptor:
- def __init__(self, *, default):
- self._default = default
+ def __init__(self, *, default):
+ self._default = default
- def __set_name__(self, owner, name):
- self._name = "_" + name
+ def __set_name__(self, owner, name):
+ self._name = "_" + name
- def __get__(self, obj, type):
- if obj is None:
- return self._default
+ def __get__(self, obj, type):
+ if obj is None:
+ return self._default
- return getattr(obj, self._name, self._default)
+ return getattr(obj, self._name, self._default)
- def __set__(self, obj, value):
- setattr(obj, self._name, int(value))
+ def __set__(self, obj, value):
+ setattr(obj, self._name, int(value))
@dataclass
class InventoryItem:
- quantity_on_hand: IntConversionDescriptor = IntConversionDescriptor(default=100)
+ quantity_on_hand: IntConversionDescriptor = IntConversionDescriptor(default=100)
i = InventoryItem()
print(i.quantity_on_hand) # 100
.. seealso::
* IBM's General Decimal Arithmetic Specification, `The General Decimal Arithmetic
- Specification <http://speleotrove.com/decimal/decarith.html>`_.
+ Specification <https://speleotrove.com/decimal/decarith.html>`_.
.. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Some instructions are accompanied by one or more inline cache entries,
which take the form of :opcode:`CACHE` instructions. These instructions
are hidden by default, but can be shown by passing ``show_caches=True`` to
- any :mod:`dis` utility.
+ any :mod:`dis` utility. Furthermore, the interpreter now adapts the
+ bytecode to specialize it for different runtime conditions. The
+ adaptive bytecode can be shown by passing ``adaptive=True``.
Example: Given the function :func:`myfunc`::
:class:`Bytecode` object that provides easy access to details of the compiled
code.
-.. class:: Bytecode(x, *, first_line=None, current_offset=None, show_caches=False)
-
+.. class:: Bytecode(x, *, first_line=None, current_offset=None,\
+ show_caches=False, adaptive=False)
Analyse the bytecode corresponding to a function, generator, asynchronous
generator, coroutine, method, string of source code, or a code object (as
disassembled code. Setting this means :meth:`.dis` will display a "current
instruction" marker against the specified opcode.
+ If *show_caches* is ``True``, :meth:`.dis` will display inline cache
+ entries used by the interpreter to specialize the bytecode.
+
+ If *adaptive* is ``True``, :meth:`.dis` will display specialized bytecode
+ that may be different from the original bytecode.
+
.. classmethod:: from_traceback(tb, *, show_caches=False)
Construct a :class:`Bytecode` instance from the given traceback, setting
This can now handle coroutine and asynchronous generator objects.
.. versionchanged:: 3.11
- Added the ``show_caches`` parameter.
+ Added the *show_caches* and *adaptive* parameters.
Example:
Added *file* parameter.
-.. function:: dis(x=None, *, file=None, depth=None, show_caches=False)
+.. function:: dis(x=None, *, file=None, depth=None, show_caches=False, adaptive=False)
Disassemble the *x* object. *x* can denote either a module, a class, a
method, a function, a generator, an asynchronous generator, a coroutine,
The maximal depth of recursion is limited by *depth* unless it is ``None``.
``depth=0`` means no recursion.
+ If *show_caches* is ``True``, this function will display inline cache
+ entries used by the interpreter to specialize the bytecode.
+
+ If *adaptive* is ``True``, this function will display specialized bytecode
+ that may be different from the original bytecode.
+
.. versionchanged:: 3.4
Added *file* parameter.
This can now handle coroutine and asynchronous generator objects.
.. versionchanged:: 3.11
- Added the ``show_caches`` parameter.
+ Added the *show_caches* and *adaptive* parameters.
-.. function:: distb(tb=None, *, file=None, show_caches=False)
+.. function:: distb(tb=None, *, file=None, show_caches=False, adaptive=False)
Disassemble the top-of-stack function of a traceback, using the last
traceback if none was passed. The instruction causing the exception is
Added *file* parameter.
.. versionchanged:: 3.11
- Added the ``show_caches`` parameter.
+ Added the *show_caches* and *adaptive* parameters.
-.. function:: disassemble(code, lasti=-1, *, file=None, show_caches=False)
- disco(code, lasti=-1, *, file=None, show_caches=False)
+.. function:: disassemble(code, lasti=-1, *, file=None, show_caches=False, adaptive=False)
+ disco(code, lasti=-1, *, file=None, show_caches=False, adaptive=False)
Disassemble a code object, indicating the last instruction if *lasti* was
provided. The output is divided in the following columns:
Added *file* parameter.
.. versionchanged:: 3.11
- Added the ``show_caches`` parameter.
+ Added the *show_caches* and *adaptive* parameters.
-.. function:: get_instructions(x, *, first_line=None, show_caches=False)
+.. function:: get_instructions(x, *, first_line=None, show_caches=False, adaptive=False)
Return an iterator over the instructions in the supplied function, method,
source code string or code object.
source line information (if any) is taken directly from the disassembled code
object.
+ The *show_caches* and *adaptive* parameters work as they do in :func:`dis`.
+
.. versionadded:: 3.4
.. versionchanged:: 3.11
- Added the ``show_caches`` parameter.
+ Added the *show_caches* and *adaptive* parameters.
.. function:: findlinestarts(code)
.. productionlist:: doctest
directive: "#" "doctest:" `directive_options`
- directive_options: `directive_option` ("," `directive_option`)\*
+ directive_options: `directive_option` ("," `directive_option`)*
directive_option: `on_or_off` `directive_option_name`
- on_or_off: "+" \| "-"
- directive_option_name: "DONT_ACCEPT_BLANKLINE" \| "NORMALIZE_WHITESPACE" \| ...
+ on_or_off: "+" | "-"
+ directive_option_name: "DONT_ACCEPT_BLANKLINE" | "NORMALIZE_WHITESPACE" | ...
Whitespace is not allowed between the ``+`` or ``-`` and the directive option
name. The directive option name can be any of the option flag names explained
.. versionadded:: 3.4
+**Source code:** :source:`Lib/ensurepip`
+
--------------
The :mod:`ensurepip` package provides support for bootstrapping the ``pip``
An enumeration:
* is a set of symbolic names (members) bound to unique values
-* can be iterated over to return its members in definition order
+* can be iterated over to return its canonical (i.e. non-alias) members in
+ definition order
* uses *call* syntax to return members by value
* uses *index* syntax to return members by name
the bitwise operators without losing their :class:`IntFlag` membership.
:class:`IntFlag` members are also subclasses of :class:`int`. (`Notes`_)
+ :class:`ReprEnum`
+
+ Used by :class:`IntEnum`, :class:`StrEnum`, and :class:`IntFlag`
+ to keep the :class:`str() <str>` of the mixed-in type.
+
:class:`EnumCheck`
An enumeration with the values ``CONTINUOUS``, ``NAMED_FLAGS``, and
Do not make ``obj`` a member. Can be used as a decorator.
+ :func:`global_enum`
+
+ Modify the :class:`str() <str>` and :func:`repr` of an enum
+ to show its members as belonging to the module instead of its class.
+ Should only be used if the enum members will be exported to the
+ module global namespace.
+
+ :func:`show_flag_values`
+
+ Return a list of all power-of-two integers contained in a flag.
+
.. versionadded:: 3.6 ``Flag``, ``IntFlag``, ``auto``
-.. versionadded:: 3.11 ``StrEnum``, ``EnumCheck``, ``FlagBoundary``, ``property``, ``member``, ``nonmember``
+.. versionadded:: 3.11 ``StrEnum``, ``EnumCheck``, ``ReprEnum``, ``FlagBoundary``, ``property``, ``member``, ``nonmember``, ``global_enum``, ``show_flag_values``
---------------
.. method:: EnumType.__getitem__(cls, name)
- Returns the Enum member in *cls* matching *name*, or raises an :exc:`KeyError`::
+ Returns the Enum member in *cls* matching *name*, or raises a :exc:`KeyError`::
>>> Color['BLUE']
<Color.BLUE: 3>
.. note:: Enum member values
- Member values can be anything: :class:`int`, :class:`str`, etc.. If
+ Member values can be anything: :class:`int`, :class:`str`, etc. If
the exact value is unimportant you may use :class:`auto` instances and an
- appropriate value will be chosen for you. Care must be taken if you mix
- :class:`auto` with other values.
+ appropriate value will be chosen for you. See :class:`auto` for the
+ details.
.. attribute:: Enum._ignore_
names will also be removed from the completed enumeration. See
:ref:`TimePeriod <enum-time-period>` for an example.
- .. method:: Enum.__call__(cls, value, names=None, \*, module=None, qualname=None, type=None, start=1, boundary=None)
+ .. method:: Enum.__call__(cls, value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)
This method is called in two different ways:
:module: The name of the module the new Enum is created in.
:qualname: The actual location in the module where this Enum can be found.
:type: A mix-in type for the new Enum.
- :start: The first integer value for the Enum (used by :class:`auto`)
- :boundary: How to handle out-of-range values from bit operations (:class:`Flag` only)
+ :start: The first integer value for the Enum (used by :class:`auto`).
+ :boundary: How to handle out-of-range values from bit operations (:class:`Flag` only).
.. method:: Enum.__dir__(self)
>>> PowersOfThree.SECOND.value
6
- .. method:: Enum.__init_subclass__(cls, \**kwds)
+ .. method:: Enum.__init_subclass__(cls, **kwds)
A *classmethod* that is used to further configure subsequent subclasses.
By default, does nothing.
.. method:: Enum.__format__(self)
Returns the string used for *format()* and *f-string* calls. By default,
- returns :meth:`__str__` returns, but can be overridden::
+ returns :meth:`__str__` return value, but can be overridden::
>>> class OtherStyle(Enum):
... ALTERNATE = auto()
in most of the same places that a string can be used. The result of any string
operation performed on or with a *StrEnum* member is not part of the enumeration.
- .. note:: There are places in the stdlib that check for an exact :class:`str`
- instead of a :class:`str` subclass (i.e. ``type(unknown) == str``
- instead of ``isinstance(str, unknown)``), and in those locations you
- will need to use ``str(StrEnum.member)``.
+ .. note::
+
+ There are places in the stdlib that check for an exact :class:`str`
+ instead of a :class:`str` subclass (i.e. ``type(unknown) == str``
+ instead of ``isinstance(unknown, str)``), and in those locations you
+ will need to use ``str(StrEnum.member)``.
.. note::
Using :class:`auto` with :class:`StrEnum` results in the lower-cased member
name as the value.
- .. note:: :meth:`__str__` is :func:`str.__str__` to better support the
- *replacement of existing constants* use-case. :meth:`__format__` is likewise
- :func:`str.__format__` for that same reason.
+ .. note::
+
+ :meth:`~object.__str__` is :meth:`!str.__str__` to better support the
+ *replacement of existing constants* use-case. :meth:`~object.__format__` is likewise
+ :meth:`!str.__format__` for that same reason.
.. versionadded:: 3.11
.. method:: __iter__(self):
- Returns all contained members::
+ Returns all contained non-alias members::
>>> list(Color.RED)
[<Color.RED: 1>]
>>> list(purple)
[<Color.RED: 1>, <Color.BLUE: 4>]
+ .. versionchanged:: 3.11
+
+ Aliases are no longer returned during iteration.
+
.. method:: __len__(self):
Returns number of members in flag::
Using :class:`auto` with :class:`Flag` results in integers that are powers
of two, starting with ``1``.
- .. versionchanged:: 3.11 The *repr()* of zero-valued flags has changed. It
+ .. versionchanged:: 3.11 The *repr()* of zero-valued flags has changed. It
is now::
- >>> Color(0) # doctest: +SKIP
- <Color: 0>
+ >>> Color(0) # doctest: +SKIP
+ <Color: 0>
.. class:: IntFlag
Using :class:`auto` with :class:`IntFlag` results in integers that are powers
of two, starting with ``1``.
- .. versionchanged:: 3.11 :meth:`__str__` is now :func:`int.__str__` to
- better support the *replacement of existing constants* use-case.
- :meth:`__format__` was already :func:`int.__format__` for that same reason.
+ .. versionchanged:: 3.11
+
+ :meth:`~object.__str__` is now :meth:`!int.__str__` to better support the
+ *replacement of existing constants* use-case. :meth:`~object.__format__` was
+ already :meth:`!int.__format__` for that same reason.
+
+ Inversion of an :class:`!IntFlag` now returns a positive value that is the
+ union of all flags not in the given flag, rather than a negative value.
+ This matches the existing :class:`Flag` behavior.
+
+.. class:: ReprEnum
+ :class:`!ReprEum` uses the :meth:`repr() <Enum.__repr__>` of :class:`Enum`,
+ but the :class:`str() <str>` of the mixed-in data type:
+
+ * :meth:`!int.__str__` for :class:`IntEnum` and :class:`IntFlag`
+ * :meth:`!str.__str__` for :class:`StrEnum`
+
+ Inherit from :class:`!ReprEnum` to keep the :class:`str() <str>` / :func:`format`
+ of the mixed-in data type instead of using the
+ :class:`Enum`-default :meth:`str() <Enum.__str__>`.
+
+
+ .. versionadded:: 3.11
.. class:: EnumCheck
.. attribute:: NAMED_FLAGS
Ensure that any flag groups/masks contain only named flags -- useful when
- values are specified instead of being generated by :func:`auto`
+ values are specified instead of being generated by :func:`auto`::
>>> from enum import Flag, verify, NAMED_FLAGS
>>> @verify(NAMED_FLAGS)
For *Enum* and *IntEnum* that appropriate value will be the last value plus
one; for *Flag* and *IntFlag* it will be the first power-of-two greater
than the last value; for *StrEnum* it will be the lower-cased version of the
- member's name.
+ member's name. Care must be taken if mixing *auto()* with manually specified
+ values.
+
+ *auto* instances are only resolved when at the top level of an assignment:
+
+ * ``FIRST = auto()`` will work (auto() is replaced with ``1``);
+ * ``SECOND = auto(), -2`` will work (auto is replaced with ``2``, so ``2, -2`` is
+ used to create the ``SECOND`` enum member;
+ * ``THREE = [auto(), -3]`` will *not* work (``<auto instance>, -3`` is used to
+ create the ``THREE`` enum member)
+
+ .. versionchanged:: 3.11.1
+
+ In prior versions, ``auto()`` had to be the only thing
+ on the assignment line to work properly.
``_generate_next_value_`` can be overridden to customize the values used by
*auto*.
.. versionadded:: 3.11
+.. decorator:: global_enum
+
+ A decorator to change the :class:`str() <str>` and :func:`repr` of an enum
+ to show its members as belonging to the module instead of its class.
+ Should only be used when the enum members are exported
+ to the module global namespace (see :class:`re.RegexFlag` for an example).
+
+
+ .. versionadded:: 3.11
+
+.. function:: show_flag_values(value)
+
+ Return a list of all power-of-two integers contained in a flag *value*.
+
+ .. versionadded:: 3.11
+
---------------
Notes
:class:`IntEnum`, :class:`StrEnum`, and :class:`IntFlag`
- These three enum types are designed to be drop-in replacements for existing
- integer- and string-based values; as such, they have extra limitations:
+ These three enum types are designed to be drop-in replacements for existing
+ integer- and string-based values; as such, they have extra limitations:
- - ``__str__`` uses the value and not the name of the enum member
+ - ``__str__`` uses the value and not the name of the enum member
- - ``__format__``, because it uses ``__str__``, will also use the value of
- the enum member instead of its name
+ - ``__format__``, because it uses ``__str__``, will also use the value of
+ the enum member instead of its name
- If you do not need/want those limitations, you can either create your own
- base class by mixing in the ``int`` or ``str`` type yourself::
+ If you do not need/want those limitations, you can either create your own
+ base class by mixing in the ``int`` or ``str`` type yourself::
- >>> from enum import Enum
- >>> class MyIntEnum(int, Enum):
- ... pass
+ >>> from enum import Enum
+ >>> class MyIntEnum(int, Enum):
+ ... pass
or you can reassign the appropriate :meth:`str`, etc., in your enum::
- >>> from enum import IntEnum
- >>> class MyIntEnum(IntEnum):
- ... __str__ = IntEnum.__str__
+ >>> from enum import IntEnum
+ >>> class MyIntEnum(IntEnum):
+ ... __str__ = IntEnum.__str__
Interface output queue is full
.. versionadded:: 3.11
+
+.. data:: ENOTCAPABLE
+
+ Capabilities insufficient. This error is mapped to the exception
+ :exc:`PermissionError`.
+
+ .. availability:: WASI, FreeBSD
+
+ .. versionadded:: 3.11.1
Raised when trying to run an operation without the adequate access
rights - for example filesystem permissions.
- Corresponds to :c:data:`errno` :py:data:`~errno.EACCES` and :py:data:`~errno.EPERM`.
+ Corresponds to :c:data:`errno` :py:data:`~errno.EACCES`,
+ :py:data:`~errno.EPERM`, and :py:data:`~errno.ENOTCAPABLE`.
+
+ .. versionchanged:: 3.11.1
+ WASI's :py:data:`~errno.ENOTCAPABLE` is now mapped to
+ :exc:`PermissionError`.
.. exception:: ProcessLookupError
.. method:: derive(excs)
- Returns an exception group with the same :attr:`message`,
- :attr:`__traceback__`, :attr:`__cause__`, :attr:`__context__`
- and :attr:`__notes__` but which wraps the exceptions in ``excs``.
+ Returns an exception group with the same :attr:`message`, but which
+ wraps the exceptions in ``excs``.
This method is used by :meth:`subgroup` and :meth:`split`. A
subclass needs to override it in order to make :meth:`subgroup`
and :meth:`split` return instances of the subclass rather
- than :exc:`ExceptionGroup`. ::
+ than :exc:`ExceptionGroup`.
+
+ :meth:`subgroup` and :meth:`split` copy the :attr:`__traceback__`,
+ :attr:`__cause__`, :attr:`__context__` and :attr:`__notes__` fields from
+ the original exception group to the one returned by :meth:`derive`, so
+ these fields do not need to be updated by :meth:`derive`. ::
>>> class MyGroup(ExceptionGroup):
... def derive(self, exc):
... return MyGroup(self.message, exc)
...
- >>> MyGroup("eg", [ValueError(1), TypeError(2)]).split(TypeError)
- (MyGroup('eg', [TypeError(2)]), MyGroup('eg', [ValueError(1)]))
+ >>> e = MyGroup("eg", [ValueError(1), TypeError(2)])
+ >>> e.add_note("a note")
+ >>> e.__context__ = Exception("context")
+ >>> e.__cause__ = Exception("cause")
+ >>> try:
+ ... raise e
+ ... except Exception as e:
+ ... exc = e
+ ...
+ >>> match, rest = exc.split(ValueError)
+ >>> exc, exc.__context__, exc.__cause__, exc.__notes__
+ (MyGroup('eg', [ValueError(1), TypeError(2)]), Exception('context'), Exception('cause'), ['a note'])
+ >>> match, match.__context__, match.__cause__, match.__notes__
+ (MyGroup('eg', [ValueError(1)]), Exception('context'), Exception('cause'), ['a note'])
+ >>> rest, rest.__context__, rest.__cause__, rest.__notes__
+ (MyGroup('eg', [TypeError(2)]), Exception('context'), Exception('cause'), ['a note'])
+ >>> exc.__traceback__ is match.__traceback__ is rest.__traceback__
+ True
+
Note that :exc:`BaseExceptionGroup` defines :meth:`__new__`, so
subclasses that need a different constructor signature need to
def derive(self, excs):
return Errors(excs, self.exit_code)
+ Like :exc:`ExceptionGroup`, any subclass of :exc:`BaseExceptionGroup` which
+ is also a subclass of :exc:`Exception` can only wrap instances of
+ :exc:`Exception`.
+
.. versionadded:: 3.11
Also note that :func:`functools.lru_cache` with the *maxsize* of 32768 is used to
cache the compiled regex patterns in the following functions: :func:`fnmatch`,
-:func:`fnmatchcase`, :func:`filter`.
+:func:`fnmatchcase`, :func:`.filter`.
.. function:: fnmatch(filename, pattern)
.. |func-bytearray| replace:: ``bytearray()``
.. |func-bytes| replace:: ``bytes()``
-.. function:: abs(x, /)
+.. function:: abs(x)
Return the absolute value of a number. The argument may be an
integer, a floating point number, or an object implementing :meth:`__abs__`.
If the argument is a complex number, its magnitude is returned.
-.. function:: aiter(async_iterable, /)
+.. function:: aiter(async_iterable)
Return an :term:`asynchronous iterator` for an :term:`asynchronous iterable`.
Equivalent to calling ``x.__aiter__()``.
.. versionadded:: 3.10
-.. function:: all(iterable, /)
+.. function:: all(iterable)
Return ``True`` if all elements of the *iterable* are true (or if the iterable
is empty). Equivalent to::
return True
-.. awaitablefunction:: anext(async_iterator, /)
- anext(async_iterator, default, /)
+.. awaitablefunction:: anext(async_iterator)
+ anext(async_iterator, default)
When awaited, return the next item from the given :term:`asynchronous
iterator`, or *default* if given and the iterator is exhausted.
.. versionadded:: 3.10
-.. function:: any(iterable, /)
+.. function:: any(iterable)
Return ``True`` if any element of the *iterable* is true. If the iterable
is empty, return ``False``. Equivalent to::
return False
-.. function:: ascii(object, /)
+.. function:: ascii(object)
As :func:`repr`, return a string containing a printable representation of an
object, but escape the non-ASCII characters in the string returned by
similar to that returned by :func:`repr` in Python 2.
-.. function:: bin(x, /)
+.. function:: bin(x)
Convert an integer number to a binary string prefixed with "0b". The result
is a valid Python expression. If *x* is not a Python :class:`int` object, it
See also :func:`format` for more information.
-.. class:: bool(x=False, /)
+.. class:: bool(x=False)
Return a Boolean value, i.e. one of ``True`` or ``False``. *x* is converted
using the standard :ref:`truth testing procedure <truth>`. If *x* is false
See also :ref:`binaryseq`, :ref:`typebytes`, and :ref:`bytes-methods`.
-.. function:: callable(object, /)
+.. function:: callable(object)
Return :const:`True` if the *object* argument appears callable,
:const:`False` if not. If this returns ``True``, it is still possible that a
in Python 3.2.
-.. function:: chr(i, /)
+.. function:: chr(i)
Return the string representing a character whose Unicode code point is the
integer *i*. For example, ``chr(97)`` returns the string ``'a'``, while
.. class:: complex(real=0, imag=0)
- complex(string, /)
+ complex(string)
Return a complex number with the value *real* + *imag*\*1j or convert a string
or number to a complex number. If the first parameter is a string, it will
:meth:`__float__` are not defined.
-.. function:: delattr(object, name, /)
+.. function:: delattr(object, name)
This is a relative of :func:`setattr`. The arguments are an object and a
string. The string must be the name of one of the object's attributes. The
.. _func-dict:
.. class:: dict(**kwarg)
- dict(mapping, /, **kwarg)
- dict(iterable, /, **kwarg)
+ dict(mapping, **kwarg)
+ dict(iterable, **kwarg)
:noindex:
Create a new dictionary. The :class:`dict` object is the dictionary class.
.. function:: dir()
- dir(object, /)
+ dir(object)
Without arguments, return the list of names in the current local scope. With an
argument, attempt to return a list of valid attributes for that object.
class.
-.. function:: divmod(a, b, /)
+.. function:: divmod(a, b)
Take two (non-complex) numbers as arguments and return a pair of numbers
consisting of their quotient and remainder when using integer division. With
Added the *closure* parameter.
-.. function:: filter(function, iterable, /)
+.. function:: filter(function, iterable)
Construct an iterator from those elements of *iterable* for which *function*
returns true. *iterable* may be either a sequence, a container which
elements of *iterable* for which *function* returns false.
-.. class:: float(x=0.0, /)
+.. class:: float(x=0.0)
.. index::
single: NaN
single: __format__
single: string; format() (built-in function)
-.. function:: format(value, format_spec="", /)
+.. function:: format(value, format_spec="")
Convert a *value* to a "formatted" representation, as controlled by
*format_spec*. The interpretation of *format_spec* will depend on the type
.. _func-frozenset:
-.. class:: frozenset(iterable=set(), /)
+.. class:: frozenset(iterable=set())
:noindex:
Return a new :class:`frozenset` object, optionally with elements taken from
module.
-.. function:: getattr(object, name, /)
- getattr(object, name, default, /)
+.. function:: getattr(object, name)
+ getattr(object, name, default)
Return the value of the named attribute of *object*. *name* must be a string.
If the string is the name of one of the object's attributes, the result is the
regardless of where the function is called.
-.. function:: hasattr(object, name, /)
+.. function:: hasattr(object, name)
The arguments are an object and a string. The result is ``True`` if the
string is the name of one of the object's attributes, ``False`` if not. (This
raises an :exc:`AttributeError` or not.)
-.. function:: hash(object, /)
+.. function:: hash(object)
Return the hash value of the object (if it has one). Hash values are
integers. They are used to quickly compare dictionary keys during a
signatures for callables are now more comprehensive and consistent.
-.. function:: hex(x, /)
+.. function:: hex(x)
Convert an integer number to a lowercase hexadecimal string prefixed with
"0x". If *x* is not a Python :class:`int` object, it has to define an
:meth:`float.hex` method.
-.. function:: id(object, /)
+.. function:: id(object)
Return the "identity" of an object. This is an integer which
is guaranteed to be unique and constant for this object during its lifetime.
.. function:: input()
- input(prompt, /)
+ input(prompt)
If the *prompt* argument is present, it is written to standard output without
a trailing newline. The function then reads a line from input, converts it
with the result after successfully reading input.
-.. class:: int(x=0, /)
- int(x, /, base=10)
+.. class:: int(x=0)
+ int(x, base=10)
Return an integer object constructed from a number or string *x*, or return
``0`` if no arguments are given. If *x* defines :meth:`__int__`,
See the :ref:`integer string conversion length limitation
<int_max_str_digits>` documentation.
-.. function:: isinstance(object, classinfo, /)
+.. function:: isinstance(object, classinfo)
Return ``True`` if the *object* argument is an instance of the *classinfo*
argument, or of a (direct, indirect, or :term:`virtual <abstract base
*classinfo* can be a :ref:`types-union`.
-.. function:: issubclass(class, classinfo, /)
+.. function:: issubclass(class, classinfo)
Return ``True`` if *class* is a subclass (direct, indirect, or :term:`virtual
<abstract base class>`) of *classinfo*. A
*classinfo* can be a :ref:`types-union`.
-.. function:: iter(object, /)
- iter(object, sentinel, /)
+.. function:: iter(object)
+ iter(object, sentinel)
Return an :term:`iterator` object. The first argument is interpreted very
differently depending on the presence of the second argument. Without a
process_block(block)
-.. function:: len(s, /)
+.. function:: len(s)
Return the length (the number of items) of an object. The argument may be a
sequence (such as a string, bytes, tuple, list, or range) or a collection
.. _func-list:
.. class:: list()
- list(iterable, /)
+ list(iterable)
:noindex:
Rather than being a function, :class:`list` is actually a mutable
The contents of this dictionary should not be modified; changes may not
affect the values of local and free variables used by the interpreter.
-.. function:: map(function, iterable, /, *iterables)
+.. function:: map(function, iterable, *iterables)
Return an iterator that applies *function* to every item of *iterable*,
yielding the results. If additional *iterables* arguments are passed,
already arranged into argument tuples, see :func:`itertools.starmap`\.
-.. function:: max(iterable, /, *, key=None)
- max(iterable, /, *, default, key=None)
- max(arg1, arg2, /, *args, key=None)
+.. function:: max(iterable, *, key=None)
+ max(iterable, *, default, key=None)
+ max(arg1, arg2, *args, key=None)
Return the largest item in an iterable or the largest of two or more
arguments.
:ref:`typememoryview` for more information.
-.. function:: min(iterable, /, *, key=None)
- min(iterable, /, *, default, key=None)
- min(arg1, arg2, /, *args, key=None)
+.. function:: min(iterable, *, key=None)
+ min(iterable, *, default, key=None)
+ min(arg1, arg2, *args, key=None)
Return the smallest item in an iterable or the smallest of two or more
arguments.
The *key* can be ``None``.
-.. function:: next(iterator, /)
- next(iterator, default, /)
+.. function:: next(iterator)
+ next(iterator, default)
Retrieve the next item from the :term:`iterator` by calling its
:meth:`~iterator.__next__` method. If *default* is given, it is returned
assign arbitrary attributes to an instance of the :class:`object` class.
-.. function:: oct(x, /)
+.. function:: oct(x)
Convert an integer number to an octal string prefixed with "0o". The result
is a valid Python expression. If *x* is not a Python :class:`int` object, it
.. versionchanged:: 3.11
The ``'U'`` mode has been removed.
-.. function:: ord(c, /)
+.. function:: ord(c)
Given a string representing one Unicode character, return an integer
representing the Unicode code point of that character. For example,
supported.
-.. function:: print(*objects, sep=' ', end='\n', file=sys.stdout, flush=False)
+.. function:: print(*objects, sep=' ', end='\n', file=None, flush=False)
Print *objects* to the text stream *file*, separated by *sep* and followed
by *end*. *sep*, *end*, *file*, and *flush*, if present, must be given as keyword
.. _func-range:
-.. class:: range(stop, /)
- range(start, stop, step=1, /)
+.. class:: range(stop)
+ range(start, stop, step=1)
:noindex:
Rather than being a function, :class:`range` is actually an immutable
sequence type, as documented in :ref:`typesseq-range` and :ref:`typesseq`.
-.. function:: repr(object, /)
+.. function:: repr(object)
Return a string containing a printable representation of an object. For many
types, this function makes an attempt to return a string that would yield an
:exc:`RuntimeError`.
-.. function:: reversed(seq, /)
+.. function:: reversed(seq)
Return a reverse :term:`iterator`. *seq* must be an object which has
a :meth:`__reversed__` method or supports the sequence protocol (the
.. _func-set:
.. class:: set()
- set(iterable, /)
+ set(iterable)
:noindex:
Return a new :class:`set` object, optionally with elements taken from
module.
-.. function:: setattr(object, name, value, /)
+.. function:: setattr(object, name, value)
This is the counterpart of :func:`getattr`. The arguments are an object, a
string, and an arbitrary value. The string may name an existing attribute or a
:func:`setattr`.
-.. class:: slice(stop, /)
- slice(start, stop, step=1, /)
+.. class:: slice(stop)
+ slice(start, stop, step=1)
Return a :term:`slice` object representing the set of indices specified by
``range(start, stop, step)``. The *start* and *step* arguments default to
The *start* parameter can be specified as a keyword argument.
.. class:: super()
- super(type, object_or_type=None, /)
+ super(type, object_or_type=None)
Return a proxy object that delegates method calls to a parent or sibling
class of *type*. This is useful for accessing inherited methods that have
.. _func-tuple:
.. class:: tuple()
- tuple(iterable, /)
+ tuple(iterable)
:noindex:
Rather than being a function, :class:`tuple` is actually an immutable
sequence type, as documented in :ref:`typesseq-tuple` and :ref:`typesseq`.
-.. class:: type(object, /)
- type(name, bases, dict, /, **kwds)
+.. class:: type(object)
+ type(name, bases, dict, **kwds)
.. index:: object: type
longer use the one-argument form to get the type of an object.
.. function:: vars()
- vars(object, /)
+ vars(object)
Return the :attr:`~object.__dict__` attribute for a module, class, instance,
or any other object with a :attr:`~object.__dict__` attribute.
.. class:: MozillaCookieJar(filename=None, delayload=None, policy=None)
A :class:`FileCookieJar` that can load from and save cookies to disk in the
- Mozilla ``cookies.txt`` file format (which is also used by the Lynx and Netscape
- browsers).
+ Mozilla ``cookies.txt`` file format (which is also used by curl and the Lynx
+ and Netscape browsers).
.. note::
Usage::
>>> from http import HTTPMethod
- >>> HTTMethod.GET
- HTTMethod.GET
- >>> HTTMethod.GET == 'GET'
+ >>>
+ >>> HTTPMethod.GET
+ <HTTPMethod.GET>
+ >>> HTTPMethod.GET == 'GET'
True
- >>> HTTMethod.GET.value
+ >>> HTTPMethod.GET.value
'GET'
- >>> HTTMethod.GET.description
- 'Transfer a current representation of the target resource.'
+ >>> HTTPMethod.GET.description
+ 'Retrieve the target.'
>>> list(HTTPMethod)
- [HTTPMethod.GET, HTTPMethod.HEAD, ...]
+ [<HTTPMethod.CONNECT>,
+ <HTTPMethod.DELETE>,
+ <HTTPMethod.GET>,
+ <HTTPMethod.HEAD>,
+ <HTTPMethod.OPTIONS>,
+ <HTTPMethod.PATCH>,
+ <HTTPMethod.POST>,
+ <HTTPMethod.PUT>,
+ <HTTPMethod.TRACE>]
.. _http-methods:
:class:`SimpleHTTPRequestHandler` will follow symbolic links when handling
requests, this makes it possible for files outside of the specified directory
to be served.
+
+Earlier versions of Python did not scrub control characters from the
+log messages emitted to stderr from ``python -m http.server`` or the
+default :class:`BaseHTTPRequestHandler` ``.log_message``
+implementation. This could allow remote clients connecting to your
+server to send nefarious control codes to your terminal.
+
+.. versionadded:: 3.11.1
+ Control characters are scrubbed in stderr logs.
**Source code:** :source:`Lib/importlib/metadata/__init__.py`
-``importlib.metadata`` is a library that provides for access to installed
-package metadata. Built in part on Python's import system, this library
+``importlib_metadata`` is a library that provides access to
+the metadata of an installed `Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_,
+such as its entry points
+or its top-level names (`Import Package <https://packaging.python.org/en/latest/glossary/#term-Import-Package>`_\s, modules, if any).
+Built in part on Python's import system, this library
intends to replace similar functionality in the `entry point
API`_ and `metadata API`_ of ``pkg_resources``. Along with
-:mod:`importlib.resources` (with new features backported to the
-`importlib_resources`_ package), this can eliminate the need to use the older
-and less efficient
+:mod:`importlib.resources`,
+this package can eliminate the need to use the older and less efficient
``pkg_resources`` package.
-By "installed package" we generally mean a third-party package installed into
-Python's ``site-packages`` directory via tools such as `pip
-<https://pypi.org/project/pip/>`_. Specifically,
-it means a package with either a discoverable ``dist-info`` or ``egg-info``
-directory, and metadata defined by :pep:`566` or its older specifications.
-By default, package metadata can live on the file system or in zip archives on
+``importlib_metadata`` operates on third-party *distribution packages*
+installed into Python's ``site-packages`` directory via tools such as
+`pip <https://pypi.org/project/pip/>`_.
+Specifically, it works with distributions with discoverable
+``dist-info`` or ``egg-info`` directories,
+and metadata defined by the `Core metadata specifications <https://packaging.python.org/en/latest/specifications/core-metadata/#core-metadata>`_.
+
+.. important::
+
+ These are *not* necessarily equivalent to or correspond 1:1 with
+ the top-level *import package* names
+ that can be imported inside Python code.
+ One *distribution package* can contain multiple *import packages*
+ (and single modules),
+ and one top-level *import package*
+ may map to multiple *distribution packages*
+ if it is a namespace package.
+ You can use :ref:`package_distributions() <package-distributions>`
+ to get a mapping between them.
+
+By default, distribution metadata can live on the file system
+or in zip archives on
:data:`sys.path`. Through an extension mechanism, the metadata can live almost
anywhere.
+.. seealso::
+
+ https://importlib-metadata.readthedocs.io/
+ The documentation for ``importlib_metadata``, which supplies a
+ backport of ``importlib.metadata``.
+ This includes an `API reference
+ <https://importlib-metadata.readthedocs.io/en/latest/api.html>`__
+ for this module's classes and functions,
+ as well as a `migration guide
+ <https://importlib-metadata.readthedocs.io/en/latest/migration.html>`__
+ for existing users of ``pkg_resources``.
+
+
Overview
========
-Let's say you wanted to get the version string for a package you've installed
+Let's say you wanted to get the version string for a
+`Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_ you've installed
using ``pip``. We start by creating a virtual environment and installing
something into it:
>>> version('wheel') # doctest: +SKIP
'0.32.3'
-You can also get the set of entry points keyed by group, such as
+You can also get a collection of entry points selectable by properties of the EntryPoint (typically 'group' or 'name'), such as
``console_scripts``, ``distutils.commands`` and others. Each group contains a
-sequence of :ref:`EntryPoint <entry-points>` objects.
+collection of :ref:`EntryPoint <entry-points>` objects.
You can get the :ref:`metadata for a distribution <metadata>`::
>>> eps = entry_points() # doctest: +SKIP
The ``entry_points()`` function returns an ``EntryPoints`` object,
-a sequence of all ``EntryPoint`` objects with ``names`` and ``groups``
+a collection of all ``EntryPoint`` objects with ``names`` and ``groups``
attributes for convenience::
>>> sorted(eps.groups) # doctest: +SKIP
Distribution metadata
---------------------
-Every distribution includes some metadata, which you can extract using the
+Every `Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_ includes some metadata,
+which you can extract using the
``metadata()`` function::
>>> wheel_metadata = metadata('wheel') # doctest: +SKIP
>>> wheel_metadata.json['requires_python']
'>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*'
+.. note::
+
+ The actual type of the object returned by ``metadata()`` is an
+ implementation detail and should be accessed only through the interface
+ described by the
+ `PackageMetadata protocol <https://importlib-metadata.readthedocs.io/en/latest/api.html#importlib_metadata.PackageMetadata>`_.
+
.. versionchanged:: 3.10
The ``Description`` is now included in the metadata when presented
through the payload. Line continuation characters have been removed.
Distribution versions
---------------------
-The ``version()`` function is the quickest way to get a distribution's version
+The ``version()`` function is the quickest way to get a
+`Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_'s version
number, as a string::
>>> version('wheel') # doctest: +SKIP
------------------
You can also get the full set of files contained within a distribution. The
-``files()`` function takes a distribution package name and returns all of the
+``files()`` function takes a `Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_ name
+and returns all of the
files installed by this distribution. Each file object returned is a
``PackagePath``, a :class:`pathlib.PurePath` derived object with additional ``dist``,
``size``, and ``hash`` properties as indicated by the metadata. For example::
Distribution requirements
-------------------------
-To get the full set of requirements for a distribution, use the ``requires()``
+To get the full set of requirements for a `Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_,
+use the ``requires()``
function::
>>> requires('wheel') # doctest: +SKIP
["pytest (>=3.0.0) ; extra == 'test'", "pytest-cov ; extra == 'test'"]
-Package distributions
----------------------
+.. _package-distributions:
+.. _import-distribution-package-mapping:
-A convenience method to resolve the distribution or
-distributions (in the case of a namespace package) for top-level
-Python packages or modules::
+Mapping import to distribution packages
+---------------------------------------
+
+A convenience method to resolve the `Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_
+name (or names, in the case of a namespace package)
+that provide each importable top-level
+Python module or `Import Package <https://packaging.python.org/en/latest/glossary/#term-Import-Package>`_::
>>> packages_distributions()
{'importlib_metadata': ['importlib-metadata'], 'yaml': ['PyYAML'], 'jaraco': ['jaraco.classes', 'jaraco.functools'], ...}
While the above API is the most common and convenient usage, you can get all
of that information from the ``Distribution`` class. A ``Distribution`` is an
-abstract object that represents the metadata for a Python package. You can
+abstract object that represents the metadata for
+a Python `Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_. You can
get the ``Distribution`` instance::
>>> from importlib.metadata import distribution # doctest: +SKIP
>>> dist.metadata['License'] # doctest: +SKIP
'MIT'
-The full set of available metadata is not described here. See :pep:`566`
-for additional details.
+The full set of available metadata is not described here.
+See the `Core metadata specifications <https://packaging.python.org/en/latest/specifications/core-metadata/#core-metadata>`_ for additional details.
+
+
+Distribution Discovery
+======================
+
+By default, this package provides built-in support for discovery of metadata
+for file system and zip file `Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_\s.
+This metadata finder search defaults to ``sys.path``, but varies slightly in how it interprets those values from how other import machinery does. In particular:
+
+- ``importlib.metadata`` does not honor :class:`bytes` objects on ``sys.path``.
+- ``importlib.metadata`` will incidentally honor :py:class:`pathlib.Path` objects on ``sys.path`` even though such values will be ignored for imports.
Extending the search algorithm
==============================
-Because package metadata is not available through :data:`sys.path` searches, or
-package loaders directly, the metadata for a package is found through import
-system :ref:`finders <finders-and-loaders>`. To find a distribution package's metadata,
+Because `Distribution Package <https://packaging.python.org/en/latest/glossary/#term-Distribution-Package>`_ metadata
+is not available through :data:`sys.path` searches, or
+package loaders directly,
+the metadata for a distribution is found through import
+system `finders`_. To find a distribution package's metadata,
``importlib.metadata`` queries the list of :term:`meta path finders <meta path finder>` on
:data:`sys.meta_path`.
-The default ``PathFinder`` for Python includes a hook that calls into
-``importlib.metadata.MetadataPathFinder`` for finding distributions
-loaded from typical file-system-based paths.
+By default ``importlib_metadata`` installs a finder for distribution packages
+found on the file system.
+This finder doesn't actually find any *distributions*,
+but it can find their metadata.
The abstract class :py:class:`importlib.abc.MetaPathFinder` defines the
interface expected of finders by Python's import system.
.. _`entry point API`: https://setuptools.readthedocs.io/en/latest/pkg_resources.html#entry-points
.. _`metadata API`: https://setuptools.readthedocs.io/en/latest/pkg_resources.html#metadata-api
-.. _`importlib_resources`: https://importlib-resources.readthedocs.io/en/latest/index.html
+.. _`finders`: https://docs.python.org/3/reference/import.html#finders-and-loaders
:class:`importlib.resources.abc.ResourceReader` and provides
concrete implementations of the :class:`importlib.resources.abc.ResourceReader`'s
abstract methods. Therefore, any loader supplying
- :class:`importlib.abc.TraversableReader` also supplies ResourceReader.
+ :class:`importlib.abc.TraversableResources` also supplies ResourceReader.
Loaders that wish to support resource reading are expected to
implement this interface.
tools provided with the operating system to obtain some or all of the
optional components.
-In addition to the standard library, there is a growing collection of
-several thousand components (from individual programs and modules to
+In addition to the standard library, there is an active collection of
+hundreds of thousands of components (from individual programs and modules to
packages and entire application development frameworks), available from
the `Python Package Index <https://pypi.org>`_.
class or module. The functions whose names begin with "is" are mainly
provided as convenient choices for the second argument to :func:`getmembers`.
They also help you determine when you can expect to find the following special
-attributes:
+attributes (see :ref:`import-mod-attrs` for module attributes):
.. this function name is too big to fit in the ascii-art table below
.. |coroutine-origin-link| replace:: :func:`sys.set_coroutine_origin_tracking_depth`
+-----------+-------------------+---------------------------+
| Type | Attribute | Description |
+===========+===================+===========================+
-| module | __doc__ | documentation string |
-+-----------+-------------------+---------------------------+
-| | __file__ | filename (missing for |
-| | | built-in modules) |
-+-----------+-------------------+---------------------------+
| class | __doc__ | documentation string |
+-----------+-------------------+---------------------------+
| | __name__ | name with which this |
.. testsetup::
from itertools import *
+ import collections
+ import math
+ import operator
+ import random
--------------
There are a number of uses for the *func* argument. It can be set to
:func:`min` for a running minimum, :func:`max` for a running maximum, or
:func:`operator.mul` for a running product. Amortization tables can be
- built by accumulating interest and applying payments. First-order
- `recurrence relations <https://en.wikipedia.org/wiki/Recurrence_relation>`_
- can be modeled by supplying the initial value in the iterable and using only
- the accumulated total in *func* argument::
+ built by accumulating interest and applying payments:
+
+ .. doctest::
>>> data = [3, 4, 6, 2, 1, 9, 0, 7, 5, 8]
>>> list(accumulate(data, operator.mul)) # running product
>>> list(accumulate(cashflows, lambda bal, pmt: bal*1.05 + pmt))
[1000, 960.0, 918.0, 873.9000000000001, 827.5950000000001]
- # Chaotic recurrence relation https://en.wikipedia.org/wiki/Logistic_map
- >>> logistic_map = lambda x, _: r * x * (1 - x)
- >>> r = 3.8
- >>> x0 = 0.4
- >>> inputs = repeat(x0, 36) # only the initial value is used
- >>> [format(x, '.2f') for x in accumulate(inputs, logistic_map)]
- ['0.40', '0.91', '0.30', '0.81', '0.60', '0.92', '0.29', '0.79', '0.63',
- '0.88', '0.39', '0.90', '0.33', '0.84', '0.52', '0.95', '0.18', '0.57',
- '0.93', '0.25', '0.71', '0.79', '0.63', '0.88', '0.39', '0.91', '0.32',
- '0.83', '0.54', '0.95', '0.20', '0.60', '0.91', '0.30', '0.80', '0.60']
-
See :func:`functools.reduce` for a similar function that returns only the
final accumulated value.
The combination tuples are emitted in lexicographic ordering according to
the order of the input *iterable*. So, if the input *iterable* is sorted,
- the combination tuples will be produced in sorted order.
+ the output tuples will be produced in sorted order.
Elements are treated as unique based on their position, not on their
- value. So if the input elements are unique, there will be no repeat
+ value. So if the input elements are unique, there will be no repeated
values in each combination.
Roughly equivalent to::
The combination tuples are emitted in lexicographic ordering according to
the order of the input *iterable*. So, if the input *iterable* is sorted,
- the combination tuples will be produced in sorted order.
+ the output tuples will be produced in sorted order.
Elements are treated as unique based on their position, not on their
value. So if the input elements are unique, the generated combinations
class groupby:
# [k for k, g in groupby('AAAABBBCCDAABBB')] --> A B C D A B
# [list(g) for k, g in groupby('AAAABBBCCD')] --> AAAA BBB CC D
+
def __init__(self, iterable, key=None):
if key is None:
key = lambda x: x
self.keyfunc = key
self.it = iter(iterable)
self.tgtkey = self.currkey = self.currvalue = object()
+
def __iter__(self):
return self
+
def __next__(self):
self.id = object()
while self.currkey == self.tgtkey:
self.currkey = self.keyfunc(self.currvalue)
self.tgtkey = self.currkey
return (self.currkey, self._grouper(self.tgtkey, self.id))
+
def _grouper(self, tgtkey, id):
while self.id is id and self.currkey == tgtkey:
yield self.currvalue
Afterward, elements are returned consecutively unless *step* is set higher than
one which results in items being skipped. If *stop* is ``None``, then iteration
continues until the iterator is exhausted, if at all; otherwise, it stops at the
- specified position. Unlike regular slicing, :func:`islice` does not support
- negative values for *start*, *stop*, or *step*. Can be used to extract related
- fields from data where the internal structure has been flattened (for example, a
- multi-line report may list a name field on every third line). Roughly equivalent to::
+ specified position.
+
+ If *start* is ``None``, then iteration starts at zero. If *step* is ``None``,
+ then the step defaults to one.
+
+ Unlike regular slicing, :func:`islice` does not support negative values for
+ *start*, *stop*, or *step*. Can be used to extract related fields from
+ data where the internal structure has been flattened (for example, a
+ multi-line report may list a name field on every third line).
+
+ Roughly equivalent to::
def islice(iterable, *args):
# islice('ABCDEFG', 2) --> A B
for i, element in zip(range(i + 1, stop), iterable):
pass
- If *start* is ``None``, then iteration starts at zero. If *step* is ``None``,
- then the step defaults to one.
.. function:: pairwise(iterable)
of the *iterable* and all possible full-length permutations
are generated.
- The permutation tuples are emitted in lexicographic ordering according to
+ The permutation tuples are emitted in lexicographic order according to
the order of the input *iterable*. So, if the input *iterable* is sorted,
- the combination tuples will be produced in sorted order.
+ the output tuples will be produced in sorted order.
Elements are treated as unique based on their position, not on their
- value. So if the input elements are unique, there will be no repeat
- values in each permutation.
+ value. So if the input elements are unique, there will be no repeated
+ values within a permutation.
Roughly equivalent to::
.. function:: repeat(object[, times])
Make an iterator that returns *object* over and over again. Runs indefinitely
- unless the *times* argument is specified. Used as argument to :func:`map` for
- invariant parameters to the called function. Also used with :func:`zip` to
- create an invariant part of a tuple record.
+ unless the *times* argument is specified.
Roughly equivalent to::
yield object
A common use for *repeat* is to supply a stream of constant values to *map*
- or *zip*::
+ or *zip*:
+
+ .. doctest::
>>> list(map(pow, range(10), repeat(2)))
[0, 1, 4, 9, 16, 25, 36, 49, 64, 81]
Make an iterator that computes the function using arguments obtained from
the iterable. Used instead of :func:`map` when argument parameters are already
- grouped in tuples from a single iterable (the data has been "pre-zipped"). The
- difference between :func:`map` and :func:`starmap` parallels the distinction
- between ``function(a,b)`` and ``function(*c)``. Roughly equivalent to::
+ grouped in tuples from a single iterable (when the data has been
+ "pre-zipped").
+
+ The difference between :func:`map` and :func:`starmap` parallels the
+ distinction between ``function(a,b)`` and ``function(*c)``. Roughly
+ equivalent to::
def starmap(function, iterable):
# starmap(pow, [(2,5), (3,2), (10,3)]) --> 32 9 1000
The following Python code helps explain what *tee* does (although the actual
implementation is more complex and uses only a single underlying
- :abbr:`FIFO (first-in, first-out)` queue).
-
- Roughly equivalent to::
+ :abbr:`FIFO (first-in, first-out)` queue)::
def tee(iterable, n=2):
it = iter(iterable)
yield mydeque.popleft()
return tuple(gen(d) for d in deques)
- Once :func:`tee` has made a split, the original *iterable* should not be
+ Once a :func:`tee` has been created, the original *iterable* should not be
used anywhere else; otherwise, the *iterable* could get advanced without
the tee objects being informed.
This section shows recipes for creating an extended toolset using the existing
itertools as building blocks.
+The primary purpose of the itertools recipes is educational. The recipes show
+various ways of thinking about individual tools — for example, that
+``chain.from_iterable`` is related to the concept of flattening. The recipes
+also give ideas about ways that the tools can be combined — for example, how
+``compress()`` and ``range()`` can work together. The recipes also show patterns
+for using itertools with the :mod:`operator` and :mod:`collections` modules as
+well as with the built-in itertools such as ``map()``, ``filter()``,
+``reversed()``, and ``enumerate()``.
+
+A secondary purpose of the recipes is to serve as an incubator. The
+``accumulate()``, ``compress()``, and ``pairwise()`` itertools started out as
+recipes. Currently, the ``iter_index()`` recipe is being tested to see
+whether it proves its worth.
+
Substantially all of these recipes and many, many others can be installed from
the `more-itertools project <https://pypi.org/project/more-itertools/>`_ found
on the Python Package Index::
python -m pip install more-itertools
-The extended tools offer the same high performance as the underlying toolset.
-The superior memory performance is kept by processing elements one at a time
+Many of the recipes offer the same high performance as the underlying toolset.
+Superior memory performance is kept by processing elements one at a time
rather than bringing the whole iterable into memory all at once. Code volume is
kept small by linking the tools together in a functional style which helps
eliminate temporary variables. High speed is retained by preferring
for k in range(len(roots) + 1)
]
+ def iter_index(iterable, value, start=0):
+ "Return indices where a value occurs in a sequence or iterable."
+ # iter_index('AABCADEAF', 'A') --> 0 1 4 7
+ try:
+ seq_index = iterable.index
+ except AttributeError:
+ # Slow path for general iterables
+ it = islice(iterable, start, None)
+ for i, element in enumerate(it, start):
+ if element is value or element == value:
+ yield i
+ else:
+ # Fast path for sequences
+ i = start - 1
+ try:
+ while True:
+ yield (i := seq_index(value, i+1))
+ except ValueError:
+ pass
+
def sieve(n):
- "Primes less than n"
- # sieve(30) --> 2 3 5 7 11 13 17 19 23 29
- data = bytearray([1]) * n
- data[:2] = 0, 0
- limit = math.isqrt(n) + 1
- for p in compress(count(), islice(data, limit)):
- data[p+p : n : p] = bytearray(len(range(p+p, n, p)))
- return compress(count(), data)
+ "Primes less than n"
+ # sieve(30) --> 2 3 5 7 11 13 17 19 23 29
+ data = bytearray((0, 1)) * (n // 2)
+ data[:3] = 0, 0, 0
+ limit = math.isqrt(n) + 1
+ for p in compress(range(limit), data):
+ data[p*p : n : p+p] = bytes(len(range(p*p, n, p+p)))
+ data[2] = 1
+ return iter_index(data, 1) if n > 2 else iter([])
def flatten(list_of_lists):
"Flatten one level of nesting"
def batched(iterable, n):
"Batch data into lists of length n. The last batch may be shorter."
# batched('ABCDEFG', 3) --> ABC DEF G
+ if n < 1:
+ raise ValueError('n must be at least one')
it = iter(iterable)
while (batch := list(islice(it, n))):
yield batch
# unique_everseen('AAAABBBCCDAABBB') --> A B C D
# unique_everseen('ABBCcAD', str.lower) --> A B C D
seen = set()
- seen_add = seen.add
if key is None:
for element in filterfalse(seen.__contains__, iterable):
- seen_add(element)
+ seen.add(element)
yield element
+ # Note: The steps shown above are intended to demonstrate
+ # filterfalse(). For order preserving deduplication,
+ # a better solution is:
+ # yield from dict.fromkeys(iterable)
else:
for element in iterable:
k = key(element)
if k not in seen:
- seen_add(k)
+ seen.add(k)
yield element
def unique_justseen(iterable, key=None):
# first_true([a,b], x, f) --> a if f(a) else b if f(b) else x
return next(filter(pred, iterable), default)
- def random_product(*args, repeat=1):
- "Random selection from itertools.product(*args, **kwds)"
- pools = [tuple(pool) for pool in args] * repeat
- return tuple(map(random.choice, pools))
-
- def random_permutation(iterable, r=None):
- "Random selection from itertools.permutations(iterable, r)"
- pool = tuple(iterable)
- r = len(pool) if r is None else r
- return tuple(random.sample(pool, r))
-
- def random_combination(iterable, r):
- "Random selection from itertools.combinations(iterable, r)"
- pool = tuple(iterable)
- n = len(pool)
- indices = sorted(random.sample(range(n), r))
- return tuple(pool[i] for i in indices)
-
- def random_combination_with_replacement(iterable, r):
- "Random selection from itertools.combinations_with_replacement(iterable, r)"
- pool = tuple(iterable)
- n = len(pool)
- indices = sorted(random.choices(range(n), k=r))
- return tuple(pool[i] for i in indices)
-
def nth_combination(iterable, r, index):
"Equivalent to list(combinations(iterable, r))[index]"
pool = tuple(iterable)
>>> all(factored(x) == expanded(x) for x in range(-10, 11))
True
+ >>> list(iter_index('AABCADEAF', 'A'))
+ [0, 1, 4, 7]
+ >>> list(iter_index('AABCADEAF', 'B'))
+ [2]
+ >>> list(iter_index('AABCADEAF', 'X'))
+ []
+ >>> list(iter_index('', 'X'))
+ []
+ >>> list(iter_index('AABCADEAF', 'A', 1))
+ [1, 4, 7]
+ >>> list(iter_index(iter('AABCADEAF'), 'A', 1))
+ [1, 4, 7]
+ >>> list(iter_index('AABCADEAF', 'A', 2))
+ [4, 7]
+ >>> list(iter_index(iter('AABCADEAF'), 'A', 2))
+ [4, 7]
+ >>> list(iter_index('AABCADEAF', 'A', 10))
+ []
+ >>> list(iter_index(iter('AABCADEAF'), 'A', 10))
+ []
+
>>> list(sieve(30))
[2, 3, 5, 7, 11, 13, 17, 19, 23, 29]
+ >>> small_primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97]
+ >>> all(list(sieve(n)) == [p for p in small_primes if p < n] for n in range(101))
+ True
>>> len(list(sieve(100)))
25
>>> len(list(sieve(1_000)))
9592
>>> len(list(sieve(1_000_000)))
78498
+ >>> carmichael = {561, 1105, 1729, 2465, 2821, 6601, 8911} # https://oeis.org/A002997
+ >>> set(sieve(10_000)).isdisjoint(carmichael)
+ True
>>> list(flatten([('a', 'b'), (), ('c', 'd', 'e'), ('f',), ('g', 'h', 'i')]))
['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i']
[['A', 'B'], ['C', 'D'], ['E', 'F'], ['G']]
>>> list(batched('ABCDEFG', 1))
[['A'], ['B'], ['C'], ['D'], ['E'], ['F'], ['G']]
- >>> list(batched('ABCDEFG', 0))
- []
- >>> list(batched('ABCDEFG', -1))
- Traceback (most recent call last):
- ...
- ValueError: Stop argument for islice() must be None or an integer: 0 <= x <= sys.maxsize.
>>> s = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
>>> all(list(flatten(batched(s[:n], 5))) == list(s[:n]) for n in range(len(s)))
True
| ``CHAR_MAX`` | Nothing is specified in this locale. |
+--------------+-----------------------------------------+
- The function sets temporarily the ``LC_CTYPE`` locale to the ``LC_NUMERIC``
+ The function temporarily sets the ``LC_CTYPE`` locale to the ``LC_NUMERIC``
locale or the ``LC_MONETARY`` locale if locales are different and numeric or
monetary strings are non-ASCII. This temporary change affects other threads.
.. versionchanged:: 3.7
- The function now sets temporarily the ``LC_CTYPE`` locale to the
+ The function now temporarily sets the ``LC_CTYPE`` locale to the
``LC_NUMERIC`` locale in some cases.
Get a regular expression that can be used with the regex function to
recognize a positive response to a yes/no question.
- .. note::
-
- The expression is in the syntax suitable for the :c:func:`regex` function
- from the C library, which might differ from the syntax used in :mod:`re`.
-
.. data:: NOEXPR
Get a regular expression that can be used with the regex(3) function to
recognize a negative response to a yes/no question.
+ .. note::
+
+ The regular expressions for :const:`YESEXPR` and
+ :const:`NOEXPR` use syntax suitable for the
+ :c:func:`regex` function from the C library, which might
+ differ from the syntax used in :mod:`re`.
+
.. data:: CRNCYSTR
Get the currency symbol, preceded by "-" if the symbol should appear before
Formats a number *val* according to the current :const:`LC_NUMERIC` setting.
The format follows the conventions of the ``%`` operator. For floating point
- values, the decimal point is modified if appropriate. If *grouping* is true,
+ values, the decimal point is modified if appropriate. If *grouping* is ``True``,
also takes the grouping into account.
If *monetary* is true, the conversion uses monetary thousands separator and
Formats a number *val* according to the current :const:`LC_MONETARY` settings.
The returned string includes the currency symbol if *symbol* is true, which is
- the default. If *grouping* is true (which is not the default), grouping is done
- with the value. If *international* is true (which is not the default), the
+ the default. If *grouping* is ``True`` (which is not the default), grouping is done
+ with the value. If *international* is ``True`` (which is not the default), the
international currency symbol is used.
- Note that this function will not work with the 'C' locale, so you have to set a
- locale via :func:`setlocale` first.
+ .. note::
+
+ This function will not work with the 'C' locale, so you have to set a
+ locale via :func:`setlocale` first.
.. function:: str(float)
:c:func:`gettext` or :c:func:`dcgettext`. For these applications, it may be
necessary to bind the text domain, so that the libraries can properly locate
their message catalogs.
-
Closes the socket to the remote host.
+ .. method:: createSocket()
+
+ Tries to create a socket and, if it's not a datagram socket, connect it
+ to the other end. This method is called during handler initialization,
+ but it's not regarded as an error if the other end isn't listening at
+ this point - the method will be called again when emitting an event, if
+ but it's not regarded as an error if the other end isn't listening yet
+ --- the method will be called again when emitting an event,
+ if there is no socket at that point.
+
+ .. versionadded:: 3.11
.. method:: emit(record)
.. seealso::
- `nmh - Message Handling System <http://www.nongnu.org/nmh/>`_
+ `nmh - Message Handling System <https://www.nongnu.org/nmh/>`_
Home page of :program:`nmh`, an updated version of the original :program:`mh`.
`MH & nmh: Email for Users & Programmers <https://rand-mh.sourceforge.io/book/>`_
.. versionchanged:: 3.11
Accepts a :term:`path-like object`.
-.. function:: set_start_method(method)
+.. function:: set_start_method(method, force=False)
Set the method which should be used to start child processes.
- *method* can be ``'fork'``, ``'spawn'`` or ``'forkserver'``.
+ The *method* argument can be ``'fork'``, ``'spawn'`` or ``'forkserver'``.
+ Raises :exc:`RuntimeError` if the start method has already been set and *force*
+ is not ``True``. If *method* is ``None`` and *force* is ``True`` then the start
+ method is set to ``None``. If *method* is ``None`` and *force* is ``False``
+ then the context is set to the default context.
Note that this should be called at most once, and it should be
protected inside the ``if __name__ == '__main__'`` clause of the
The following example demonstrates a practical use of the :class:`SharedMemory`
-class with `NumPy arrays <https://www.numpy.org/>`_, accessing the
+class with `NumPy arrays <https://numpy.org/>`_, accessing the
same ``numpy.ndarray`` from two distinct Python shells:
.. doctest::
.. function:: remove(path, *, dir_fd=None)
Remove (delete) the file *path*. If *path* is a directory, an
- :exc:`IsADirectoryError` is raised. Use :func:`rmdir` to remove directories.
+ :exc:`OSError` is raised. Use :func:`rmdir` to remove directories.
If the file does not exist, a :exc:`FileNotFoundError` is raised.
This function can support :ref:`paths relative to directory descriptors
filenames)``.
*dirpath* is a string, the path to the directory. *dirnames* is a list of the
- names of the subdirectories in *dirpath* (excluding ``'.'`` and ``'..'``).
+ names of the subdirectories in *dirpath* (including symlinks to directories,
+ and excluding ``'.'`` and ``'..'``).
*filenames* is a list of the names of the non-directory files in *dirpath*.
Note that the names in the lists contain no path components. To get a full path
(which begins with *top*) to a file or directory in *dirpath*, do
number is zero); the high bit of the low byte is set if a core file was
produced.
+ If there are no children that could be waited for, :exc:`ChildProcessError`
+ is raised.
+
:func:`waitstatus_to_exitcode` can be used to convert the exit status into an
exit code.
.. seealso::
- :func:`waitpid` can be used to wait for the completion of a specific
- child process and has more options.
+ The other :func:`!wait*` functions documented below can be used to wait for the
+ completion of a specific child process and have more options.
+ :func:`waitpid` is the only one also available on Windows.
-.. function:: waitid(idtype, id, options, /)
- Wait for the completion of one or more child processes.
- *idtype* can be :data:`P_PID`, :data:`P_PGID`, :data:`P_ALL`, or
- :data:`P_PIDFD` on Linux.
- *id* specifies the pid to wait on.
- *options* is constructed from the ORing of one or more of :data:`WEXITED`,
- :data:`WSTOPPED` or :data:`WCONTINUED` and additionally may be ORed with
- :data:`WNOHANG` or :data:`WNOWAIT`. The return value is an object
- representing the data contained in the :c:type:`siginfo_t` structure, namely:
- :attr:`si_pid`, :attr:`si_uid`, :attr:`si_signo`, :attr:`si_status`,
- :attr:`si_code` or ``None`` if :data:`WNOHANG` is specified and there are no
- children in a waitable state.
-
- .. availability:: Unix, not Emscripten, not WASI.
-
- .. versionadded:: 3.3
-
-.. data:: P_PID
- P_PGID
- P_ALL
-
- These are the possible values for *idtype* in :func:`waitid`. They affect
- how *id* is interpreted.
-
- .. availability:: Unix, not Emscripten, not WASI.
-
- .. versionadded:: 3.3
-
-.. data:: P_PIDFD
-
- This is a Linux-specific *idtype* that indicates that *id* is a file
- descriptor that refers to a process.
-
- .. availability:: Linux >= 5.4
-
- .. versionadded:: 3.9
-
-.. data:: WEXITED
- WSTOPPED
- WNOWAIT
+.. function:: waitid(idtype, id, options, /)
- Flags that can be used in *options* in :func:`waitid` that specify what
- child signal to wait for.
+ Wait for the completion of a child process.
- .. availability:: Unix, not Emscripten, not WASI.
+ *idtype* can be :data:`P_PID`, :data:`P_PGID`, :data:`P_ALL`, or (on Linux) :data:`P_PIDFD`.
+ The interpretation of *id* depends on it; see their individual descriptions.
- .. versionadded:: 3.3
+ *options* is an OR combination of flags. At least one of :data:`WEXITED`,
+ :data:`WSTOPPED` or :data:`WCONTINUED` is required;
+ :data:`WNOHANG` and :data:`WNOWAIT` are additional optional flags.
+ The return value is an object representing the data contained in the
+ :c:type:`!siginfo_t` structure with the following attributes:
-.. data:: CLD_EXITED
- CLD_KILLED
- CLD_DUMPED
- CLD_TRAPPED
- CLD_STOPPED
- CLD_CONTINUED
+ * :attr:`!si_pid` (process ID)
+ * :attr:`!si_uid` (real user ID of the child)
+ * :attr:`!si_signo` (always :data:`~signal.SIGCHLD`)
+ * :attr:`!si_status` (the exit status or signal number, depending on :attr:`!si_code`)
+ * :attr:`!si_code` (see :data:`CLD_EXITED` for possible values)
- These are the possible values for :attr:`si_code` in the result returned by
- :func:`waitid`.
+ If :data:`WNOHANG` is specified and there are no matching children in the
+ requested state, ``None`` is returned.
+ Otherwise, if there are no matching children
+ that could be waited for, :exc:`ChildProcessError` is raised.
.. availability:: Unix, not Emscripten, not WASI.
.. versionadded:: 3.3
- .. versionchanged:: 3.9
- Added :data:`CLD_KILLED` and :data:`CLD_STOPPED` values.
-
.. function:: waitpid(pid, options, /)
``-1``, status is requested for any process in the process group ``-pid`` (the
absolute value of *pid*).
- An :exc:`OSError` is raised with the value of errno when the syscall
- returns -1.
+ *options* is an OR combination of flags. If it contains :data:`WNOHANG` and
+ there are no matching children in the requested state, ``(0, 0)`` is
+ returned. Otherwise, if there are no matching children that could be waited
+ for, :exc:`ChildProcessError` is raised. Other options that can be used are
+ :data:`WUNTRACED` and :data:`WCONTINUED`.
On Windows: Wait for completion of a process given by process handle *pid*, and
return a tuple containing *pid*, and its exit status shifted left by 8 bits
:func:`waitstatus_to_exitcode` can be used to convert the exit status into an
exit code.
- .. availability:: Unix, not Emscripten, not WASI.
+ .. availability:: Unix, Windows, not Emscripten, not WASI.
.. versionchanged:: 3.5
If the system call is interrupted and the signal handler does not raise an
Similar to :func:`waitpid`, except no process id argument is given and a
3-element tuple containing the child's process id, exit status indication,
and resource usage information is returned. Refer to
- :mod:`resource`.\ :func:`~resource.getrusage` for details on resource usage
- information. The option argument is the same as that provided to
- :func:`waitpid` and :func:`wait4`.
+ :func:`resource.getrusage` for details on resource usage information. The
+ *options* argument is the same as that provided to :func:`waitpid` and
+ :func:`wait4`.
:func:`waitstatus_to_exitcode` can be used to convert the exit status into an
exitcode.
.. function:: wait4(pid, options)
Similar to :func:`waitpid`, except a 3-element tuple, containing the child's
- process id, exit status indication, and resource usage information is returned.
- Refer to :mod:`resource`.\ :func:`~resource.getrusage` for details on
- resource usage information. The arguments to :func:`wait4` are the same
- as those provided to :func:`waitpid`.
+ process id, exit status indication, and resource usage information is
+ returned. Refer to :func:`resource.getrusage` for details on resource usage
+ information. The arguments to :func:`wait4` are the same as those provided
+ to :func:`waitpid`.
:func:`waitstatus_to_exitcode` can be used to convert the exit status into an
exitcode.
.. availability:: Unix, not Emscripten, not WASI.
+.. data:: P_PID
+ P_PGID
+ P_ALL
+ P_PIDFD
+
+ These are the possible values for *idtype* in :func:`waitid`. They affect
+ how *id* is interpreted:
+
+ * :data:`!P_PID` - wait for the child whose PID is *id*.
+ * :data:`!P_PGID` - wait for any child whose progress group ID is *id*.
+ * :data:`!P_ALL` - wait for any child; *id* is ignored.
+ * :data:`!P_PIDFD` - wait for the child identified by the file descriptor
+ *id* (a process file descriptor created with :func:`pidfd_open`).
+
+ .. availability:: Unix, not Emscripten, not WASI.
+
+ .. note:: :data:`!P_PIDFD` is only available on Linux >= 5.4.
+
+ .. versionadded:: 3.3
+ .. versionadded:: 3.9
+ The :data:`!P_PIDFD` constant.
+
+
+.. data:: WCONTINUED
+
+ This *options* flag for :func:`waitpid`, :func:`wait3`, :func:`wait4`, and
+ :func:`waitid` causes child processes to be reported if they have been
+ continued from a job control stop since they were last reported.
+
+ .. availability:: Unix, not Emscripten, not WASI.
+
+
+.. data:: WEXITED
+
+ This *options* flag for :func:`waitid` causes child processes that have terminated to
+ be reported.
+
+ The other ``wait*`` functions always report children that have terminated,
+ so this option is not available for them.
+
+ .. availability:: Unix, not Emscripten, not WASI.
+
+ .. versionadded:: 3.3
+
+
+.. data:: WSTOPPED
+
+ This *options* flag for :func:`waitid` causes child processes that have been stopped
+ by the delivery of a signal to be reported.
+
+ This option is not available for the other ``wait*`` functions.
+
+ .. availability:: Unix, not Emscripten, not WASI.
+
+ .. versionadded:: 3.3
+
+
+.. data:: WUNTRACED
+
+ This *options* flag for :func:`waitpid`, :func:`wait3`, and :func:`wait4` causes
+ child processes to also be reported if they have been stopped but their
+ current state has not been reported since they were stopped.
+
+ This option is not available for :func:`waitid`.
+
+ .. availability:: Unix, not Emscripten, not WASI.
+
+
+.. data:: WNOHANG
+
+ This *options* flag causes :func:`waitpid`, :func:`wait3`, :func:`wait4`, and
+ :func:`waitid` to return right away if no child process status is available
+ immediately.
+
+ .. availability:: Unix, not Emscripten, not WASI.
+
+
+.. data:: WNOWAIT
+
+ This *options* flag causes :func:`waitid` to leave the child in a waitable state, so that
+ a later :func:`!wait*` call can be used to retrieve the child status information again.
+
+ This option is not available for the other ``wait*`` functions.
+
+ .. availability:: Unix, not Emscripten, not WASI.
+
+
+.. data:: CLD_EXITED
+ CLD_KILLED
+ CLD_DUMPED
+ CLD_TRAPPED
+ CLD_STOPPED
+ CLD_CONTINUED
+
+ These are the possible values for :attr:`!si_code` in the result returned by
+ :func:`waitid`.
+
+ .. availability:: Unix, not Emscripten, not WASI.
+
+ .. versionadded:: 3.3
+
+ .. versionchanged:: 3.9
+ Added :data:`CLD_KILLED` and :data:`CLD_STOPPED` values.
+
+
.. function:: waitstatus_to_exitcode(status)
Convert a wait status to an exit code.
.. versionadded:: 3.9
-.. data:: WNOHANG
-
- The option for :func:`waitpid` to return immediately if no child process status
- is available immediately. The function returns ``(0, 0)`` in this case.
-
- .. availability:: Unix, not Emscripten, not WASI.
-
-
-.. data:: WCONTINUED
-
- This option causes child processes to be reported if they have been continued
- from a job control stop since their status was last reported.
-
- .. availability:: Unix, not Emscripten, not WASI.
-
- Some Unix systems.
-
-
-.. data:: WUNTRACED
-
- This option causes child processes to be reported if they have been stopped but
- their current state has not been reported since they were stopped.
-
- .. availability:: Unix, not Emscripten, not WASI.
-
-
The following functions take a process status code as returned by
:func:`system`, :func:`wait`, or :func:`waitpid` as a parameter. They may be
used to determine the disposition of a process.
If you want to walk an arbitrary filesystem path upwards, it is
recommended to first call :meth:`Path.resolve` so as to resolve
- symlinks and eliminate `".."` components.
+ symlinks and eliminate ``".."`` components.
.. data:: PurePath.name
^^^^^^^^^^^^^^^^^^^^^^^^
There are fundamental differences between the pickle protocols and
-`JSON (JavaScript Object Notation) <http://json.org>`_:
+`JSON (JavaScript Object Notation) <https://json.org>`_:
* JSON is a text serialization format (it outputs unicode text, although
most of the time it is then encoded to ``utf-8``), while pickle is
including simulation, sampling, shuffling, and cross-validation.
`Economics Simulation
- <http://nbviewer.jupyter.org/url/norvig.com/ipython/Economics.ipynb>`_
+ <https://nbviewer.jupyter.org/url/norvig.com/ipython/Economics.ipynb>`_
a simulation of a marketplace by
`Peter Norvig <https://norvig.com/bio.html>`_ that shows effective
use of many of the tools and distributions provided by this module
Recipes
-------
+These recipes show how to efficiently make random selections
+from the combinatoric iterators in the :mod:`itertools` module:
+
+.. testcode::
+ import random
+
+ def random_product(*args, repeat=1):
+ "Random selection from itertools.product(*args, **kwds)"
+ pools = [tuple(pool) for pool in args] * repeat
+ return tuple(map(random.choice, pools))
+
+ def random_permutation(iterable, r=None):
+ "Random selection from itertools.permutations(iterable, r)"
+ pool = tuple(iterable)
+ r = len(pool) if r is None else r
+ return tuple(random.sample(pool, r))
+
+ def random_combination(iterable, r):
+ "Random selection from itertools.combinations(iterable, r)"
+ pool = tuple(iterable)
+ n = len(pool)
+ indices = sorted(random.sample(range(n), r))
+ return tuple(pool[i] for i in indices)
+
+ def random_combination_with_replacement(iterable, r):
+ "Random selection from itertools.combinations_with_replacement(iterable, r)"
+ pool = tuple(iterable)
+ n = len(pool)
+ indices = sorted(random.choices(range(n), k=r))
+ return tuple(pool[i] for i in indices)
+
The default :func:`.random` returns multiples of 2⁻⁵³ in the range
*0.0 ≤ x < 1.0*. All such numbers are evenly spaced and are exactly
representable as Python floats. However, many other representable
some fixed length. Patterns which start with negative lookbehind assertions may
match at the beginning of the string being searched.
+.. _re-conditional-expression:
+.. index:: single: (?(; in regular expressions
+
``(?(id/name)yes-pattern|no-pattern)``
Will try to match with ``yes-pattern`` if the group with given *id* or
*name* exists, and with ``no-pattern`` if it doesn't. ``no-pattern`` is
.. sectionauthor:: Fred L. Drake, Jr. <fdrake@acm.org>
-Python offers two different primitive operations based on regular expressions:
-:func:`re.match` checks for a match only at the beginning of the string, while
-:func:`re.search` checks for a match anywhere in the string (this is what Perl
-does by default).
+Python offers different primitive operations based on regular expressions:
+
++ :func:`re.match` checks for a match only at the beginning of the string
++ :func:`re.search` checks for a match anywhere in the string
+ (this is what Perl does by default)
++ :func:`re.fullmatch` checks for entire string to be a match
+
For example::
>>> re.match("c", "abcdef") # No match
>>> re.search("c", "abcdef") # Match
<re.Match object; span=(2, 3), match='c'>
+ >>> re.fullmatch("p.*n", "python") # Match
+ <re.Match object; span=(0, 6), match='python'>
+ >>> re.fullmatch("r.*n", "python") # No match
Regular expressions beginning with ``'^'`` can be used with :func:`search` to
restrict the match at the beginning of the string::
beginning of the string, whereas using :func:`search` with a regular expression
beginning with ``'^'`` will match at the beginning of each line. ::
- >>> re.match('X', 'A\nB\nX', re.MULTILINE) # No match
- >>> re.search('^X', 'A\nB\nX', re.MULTILINE) # Match
+ >>> re.match("X", "A\nB\nX", re.MULTILINE) # No match
+ >>> re.search("^X", "A\nB\nX", re.MULTILINE) # Match
<re.Match object; span=(4, 5), match='X'>
.. function:: compare_digest(a, b)
- Return ``True`` if strings *a* and *b* are equal, otherwise ``False``,
+ Return ``True`` if strings or
+ :term:`bytes-like objects <bytes-like object>`
+ *a* and *b* are equal, otherwise ``False``,
using a "constant-time compare" to reduce the risk of
`timing attacks <https://codahale.com/a-lesson-in-timing-attacks/>`_.
See :func:`hmac.compare_digest` for additional details.
.. module:: signal
:synopsis: Set handlers for asynchronous events.
+**Source code:** :source:`Lib/signal.py`
+
--------------
This module provides mechanisms to use signal handlers in Python.
.. function:: strsignal(signalnum)
- Return the system description of the signal *signalnum*, such as
- "Interrupt", "Segmentation fault", etc. Returns :const:`None` if the signal
- is not recognized.
+ Returns the description of signal *signalnum*, such as "Interrupt"
+ for :const:`SIGINT`. Returns :const:`None` if *signalnum* has no
+ description. Raises :exc:`ValueError` if *signalnum* is invalid.
.. versionadded:: 3.8
.. versionchanged:: 3.5
Result changed from a tuple to a namedtuple.
+The following sound header types are recognized, as listed below with the return value
+from :func:`whathdr`: and :func:`what`:
+
++------------+------------------------------------+
+| Value | Sound header format |
++============+====================================+
+| ``'aifc'`` | Compressed Audio Interchange Files |
++------------+------------------------------------+
+| ``'aiff'`` | Audio Interchange Files |
++------------+------------------------------------+
+| ``'au'`` | Au Files |
++------------+------------------------------------+
+| ``'hcom'`` | HCOM Files |
++------------+------------------------------------+
+| ``'sndt'`` | Sndtool Sound Files |
++------------+------------------------------------+
+| ``'voc'`` | Creative Labs Audio Files |
++------------+------------------------------------+
+| ``'wav'`` | Waveform Audio File Format Files |
++------------+------------------------------------+
+| ``'8svx'`` | 8-Bit Sampled Voice Files |
++------------+------------------------------------+
+| ``'sb'`` | Signed Byte Audio Data Files |
++------------+------------------------------------+
+| ``'ub'`` | UB Files |
++------------+------------------------------------+
+| ``'ul'`` | uLAW Audio Files |
++------------+------------------------------------+
+
+.. data:: tests
+
+ A list of functions performing the individual tests. Each function takes two
+ arguments: the byte-stream and an open file-like object. When :func:`what` is
+ called with a byte-stream, the file-like object will be ``None``.
+
+ The test function should return a string describing the image type if the test
+ succeeded, or ``None`` if it failed.
+
+Example:
+
+.. code-block:: pycon
+
+ >>> import sndhdr
+ >>> imghdr.what('bass.wav')
+ 'wav'
+ >>> imghdr.whathdr('bass.wav')
+ 'wav'
+
Note that :class:`UnixDatagramServer` derives from :class:`UDPServer`, not from
:class:`UnixStreamServer` --- the only difference between an IP and a Unix
-stream server is the address family, which is simply repeated in both Unix
-server classes.
+server is the address family.
.. class:: ForkingMixIn
The :attr:`self.rfile` and :attr:`self.wfile` attributes can be
read or written, respectively, to get the request data or return data
to the client.
-
- The :attr:`rfile` attributes of both classes support the
- :class:`io.BufferedIOBase` readable interface, and
- :attr:`DatagramRequestHandler.wfile` supports the
- :class:`io.BufferedIOBase` writable interface.
+ The :attr:`!rfile` attributes support the :class:`io.BufferedIOBase` readable interface,
+ and :attr:`!wfile` attributes support the :class:`!io.BufferedIOBase` writable interface.
.. versionchanged:: 3.6
:attr:`StreamRequestHandler.wfile` also supports the
* :ref:`sqlite3-adapters`
* :ref:`sqlite3-converters`
* :ref:`sqlite3-connection-context-manager`
+ * :ref:`sqlite3-howto-row-factory`
* :ref:`sqlite3-explanation` for in-depth background on transaction control.
.. note::
- The :mod:`!sqlite3` module supports both ``qmark`` and ``numeric`` DB-API
- parameter styles, because that is what the underlying SQLite library
- supports. However, the DB-API does not allow multiple values for
+ The :mod:`!sqlite3` module supports ``qmark``, ``numeric``,
+ and ``named`` DB-API parameter styles,
+ because that is what the underlying SQLite library supports.
+ However, the DB-API does not allow multiple values for
the ``paramstyle`` attribute.
.. data:: sqlite_version
supplied, this must be a callable returning an instance of :class:`Cursor`
or its subclasses.
- .. method:: blobopen(table, column, row, /, \*, readonly=False, name="main")
+ .. method:: blobopen(table, column, row, /, *, readonly=False, name="main")
Open a :class:`Blob` handle to an existing
:abbr:`BLOB (Binary Large OBject)`.
:meth:`~Cursor.executescript` on it with the given *sql_script*.
Return the new cursor object.
- .. method:: create_function(name, narg, func, \*, deterministic=False)
+ .. method:: create_function(name, narg, func, *, deterministic=False)
Create or remove a user-defined SQL function.
con.close()
- .. method:: backup(target, \*, pages=-1, progress=None, name="main", sleep=0.250)
+ .. method:: backup(target, *, pages=-1, progress=None, name="main", sleep=0.250)
Create a backup of an SQLite database.
.. _SQLite limit category: https://www.sqlite.org/c3ref/c_limit_attached.html
- .. method:: serialize(\*, name="main")
+ .. method:: serialize(*, name="main")
Serialize a database into a :class:`bytes` object. For an
ordinary on-disk database file, the serialization is just a copy of the
.. versionadded:: 3.11
- .. method:: deserialize(data, /, \*, name="main")
+ .. method:: deserialize(data, /, *, name="main")
Deserialize a :meth:`serialized <serialize>` database into a
:class:`Connection`.
.. attribute:: row_factory
- A callable that accepts two arguments,
- a :class:`Cursor` object and the raw row results as a :class:`tuple`,
- and returns a custom object representing an SQLite row.
-
- Example:
-
- .. doctest::
-
- >>> def dict_factory(cursor, row):
- ... col_names = [col[0] for col in cursor.description]
- ... return {key: value for key, value in zip(col_names, row)}
- >>> con = sqlite3.connect(":memory:")
- >>> con.row_factory = dict_factory
- >>> for row in con.execute("SELECT 1 AS a, 2 AS b"):
- ... print(row)
- {'a': 1, 'b': 2}
+ The initial :attr:`~Cursor.row_factory`
+ for :class:`Cursor` objects created from this connection.
+ Assigning to this attribute does not affect the :attr:`!row_factory`
+ of existing cursors belonging to this connection, only new ones.
+ Is ``None`` by default,
+ meaning each row is returned as a :class:`tuple`.
- If returning a tuple doesn't suffice and you want name-based access to
- columns, you should consider setting :attr:`row_factory` to the
- highly optimized :class:`sqlite3.Row` type. :class:`Row` provides both
- index-based and case-insensitive name-based access to columns with almost no
- memory overhead. It will probably be better than your own custom
- dictionary-based approach or even a db_row based solution.
-
- .. XXX what's a db_row-based solution?
+ See :ref:`sqlite3-howto-row-factory` for more details.
.. attribute:: text_factory
.. method:: fetchone()
- If :attr:`~Connection.row_factory` is ``None``,
+ If :attr:`~Cursor.row_factory` is ``None``,
return the next row query result set as a :class:`tuple`.
Else, pass it to the row factory and return its result.
Return ``None`` if no more data is available.
including :abbr:`CTE (Common Table Expression)` queries.
It is only updated by the :meth:`execute` and :meth:`executemany` methods.
+ .. attribute:: row_factory
+
+ Control how a row fetched from this :class:`!Cursor` is represented.
+ If ``None``, a row is represented as a :class:`tuple`.
+ Can be set to the included :class:`sqlite3.Row`;
+ or a :term:`callable` that accepts two arguments,
+ a :class:`Cursor` object and the :class:`!tuple` of row values,
+ and returns a custom object representing an SQLite row.
+
+ Defaults to what :attr:`Connection.row_factory` was set to
+ when the :class:`!Cursor` was created.
+ Assigning to this attribute does not affect
+ :attr:`Connection.row_factory` of the parent connection.
+
+ See :ref:`sqlite3-howto-row-factory` for more details.
+
.. The sqlite3.Row example used to be a how-to. It has now been incorporated
into the Row reference. We keep the anchor here in order not to break
It supports iteration, equality testing, :func:`len`,
and :term:`mapping` access by column name and index.
- Two row objects compare equal if have equal columns and equal members.
+ Two :class:`!Row` objects compare equal
+ if they have identical column names and values.
+
+ See :ref:`sqlite3-howto-row-factory` for more details.
.. method:: keys
.. versionchanged:: 3.5
Added support of slicing.
- Example:
-
- .. doctest::
-
- >>> con = sqlite3.connect(":memory:")
- >>> con.row_factory = sqlite3.Row
- >>> res = con.execute("SELECT 'Earth' AS name, 6378 AS radius")
- >>> row = res.fetchone()
- >>> row.keys()
- ['name', 'radius']
- >>> row[0], row["name"] # Access by index and name.
- ('Earth', 'Earth')
- >>> row["RADIUS"] # Column names are case-insensitive.
- 6378
-
.. _sqlite3-blob-objects:
return f"Point({self.x}, {self.y})"
def adapt_point(point):
- return f"{point.x};{point.y}".encode("utf-8")
+ return f"{point.x};{point.y}"
def convert_point(s):
x, y = list(map(float, s.split(b";")))
def convert_date(val):
"""Convert ISO 8601 date to datetime.date object."""
- return datetime.date.fromisoformat(val)
+ return datetime.date.fromisoformat(val.decode())
def convert_datetime(val):
"""Convert ISO 8601 datetime to datetime.datetime object."""
- return datetime.datetime.fromisoformat(val)
+ return datetime.datetime.fromisoformat(val.decode())
def convert_timestamp(val):
"""Convert Unix epoch timestamp to datetime.datetime object."""
- return datetime.datetime.fromtimestamp(val)
+ return datetime.datetime.fromtimestamp(int(val))
sqlite3.register_converter("date", convert_date)
sqlite3.register_converter("datetime", convert_datetime)
sqlite3.register_converter("timestamp", convert_timestamp)
+.. testcode::
+ :hide:
+
+ dt = datetime.datetime(2019, 5, 18, 15, 17, 8, 123456)
+
+ assert adapt_date_iso(dt.date()) == "2019-05-18"
+ assert convert_date(b"2019-05-18") == dt.date()
+
+ assert adapt_datetime_iso(dt) == "2019-05-18T15:17:08.123456"
+ assert convert_datetime(b"2019-05-18T15:17:08.123456") == dt
+
+ # Using current time as fromtimestamp() returns local date/time.
+ # Droping microseconds as adapt_datetime_epoch truncates fractional second part.
+ now = datetime.datetime.now().replace(microsecond=0)
+ current_timestamp = int(now.timestamp())
+
+ assert adapt_datetime_epoch(now) == current_timestamp
+ assert convert_timestamp(str(current_timestamp).encode()) == now
+
.. _sqlite3-connection-shortcuts:
.. _SQLite URI documentation: https://www.sqlite.org/uri.html
+.. _sqlite3-howto-row-factory:
+
+How to create and use row factories
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+By default, :mod:`!sqlite3` represents each row as a :class:`tuple`.
+If a :class:`!tuple` does not suit your needs,
+you can use the :class:`sqlite3.Row` class
+or a custom :attr:`~Cursor.row_factory`.
+
+While :attr:`!row_factory` exists as an attribute both on the
+:class:`Cursor` and the :class:`Connection`,
+it is recommended to set :class:`Connection.row_factory`,
+so all cursors created from the connection will use the same row factory.
+
+:class:`!Row` provides indexed and case-insensitive named access to columns,
+with minimal memory overhead and performance impact over a :class:`!tuple`.
+To use :class:`!Row` as a row factory,
+assign it to the :attr:`!row_factory` attribute:
+
+.. doctest::
+
+ >>> con = sqlite3.connect(":memory:")
+ >>> con.row_factory = sqlite3.Row
+
+Queries now return :class:`!Row` objects:
+
+.. doctest::
+
+ >>> res = con.execute("SELECT 'Earth' AS name, 6378 AS radius")
+ >>> row = res.fetchone()
+ >>> row.keys()
+ ['name', 'radius']
+ >>> row[0] # Access by index.
+ 'Earth'
+ >>> row["name"] # Access by name.
+ 'Earth'
+ >>> row["RADIUS"] # Column names are case-insensitive.
+ 6378
+
+You can create a custom :attr:`~Cursor.row_factory`
+that returns each row as a :class:`dict`, with column names mapped to values:
+
+.. testcode::
+
+ def dict_factory(cursor, row):
+ fields = [column[0] for column in cursor.description]
+ return {key: value for key, value in zip(fields, row)}
+
+Using it, queries now return a :class:`!dict` instead of a :class:`!tuple`:
+
+.. doctest::
+
+ >>> con = sqlite3.connect(":memory:")
+ >>> con.row_factory = dict_factory
+ >>> for row in con.execute("SELECT 1 AS a, 2 AS b"):
+ ... print(row)
+ {'a': 1, 'b': 2}
+
+The following row factory returns a :term:`named tuple`:
+
+.. testcode::
+
+ from collections import namedtuple
+
+ def namedtuple_factory(cursor, row):
+ fields = [column[0] for column in cursor.description]
+ cls = namedtuple("Row", fields)
+ return cls._make(row)
+
+:func:`!namedtuple_factory` can be used as follows:
+
+.. doctest::
+
+ >>> con = sqlite3.connect(":memory:")
+ >>> con.row_factory = namedtuple_factory
+ >>> cur = con.execute("SELECT 1 AS a, 2 AS b")
+ >>> row = cur.fetchone()
+ >>> row
+ Row(a=1, b=2)
+ >>> row[0] # Indexed access.
+ 1
+ >>> row.b # Attribute access.
+ 2
+
+With some adjustments, the above recipe can be adapted to use a
+:class:`~dataclasses.dataclass`, or any other custom class,
+instead of a :class:`~collections.namedtuple`.
+
+
.. _sqlite3-explanation:
Explanation
range [*start*, *end*]. Optional arguments *start* and *end* are
interpreted as in slice notation.
+ If *sub* is empty, returns the number of empty strings between characters
+ which is the length of the string plus one.
+
.. method:: str.encode(encoding="utf-8", errors="strict")
The subsequence to search for may be any :term:`bytes-like object` or an
integer in the range 0 to 255.
+ If *sub* is empty, returns the number of empty slices between characters
+ which is the length of the bytes object plus one.
+
.. versionchanged:: 3.3
Also accept an integer in the range 0 to 255 as the subsequence.
A dictionary's keys are *almost* arbitrary values. Values that are not
:term:`hashable`, that is, values containing lists, dictionaries or other
mutable types (that are compared by value rather than by object identity) may
-not be used as keys. Numeric types used for keys obey the normal rules for
-numeric comparison: if two numbers compare equal (such as ``1`` and ``1.0``)
-then they can be used interchangeably to index the same dictionary entry. (Note
-however, that since computers store floating-point numbers as approximations it
-is usually unwise to use them as dictionary keys.)
+not be used as keys.
+Values that compare equal (such as ``1``, ``1.0``, and ``True``)
+can be used interchangeably to index the same dictionary entry.
.. class:: dict(**kwargs)
dict(mapping, **kwargs)
--------------
-This module performs conversions between Python values and C structs represented
-as Python :class:`bytes` objects. This can be used in handling binary data
-stored in files or from network connections, among other sources. It uses
-:ref:`struct-format-strings` as compact descriptions of the layout of the C
-structs and the intended conversion to/from Python values.
+This module converts between Python values and C structs represented
+as Python :class:`bytes` objects. Compact :ref:`format strings <struct-format-strings>`
+describe the intended conversions to/from Python values.
+The module's functions and objects can be used for two largely
+distinct applications, data exchange with external sources (files or
+network connections), or data transfer between the Python application
+and the C layer.
.. note::
- By default, the result of packing a given C struct includes pad bytes in
- order to maintain proper alignment for the C types involved; similarly,
- alignment is taken into account when unpacking. This behavior is chosen so
- that the bytes of a packed struct correspond exactly to the layout in memory
- of the corresponding C struct. To handle platform-independent data formats
- or omit implicit pad bytes, use ``standard`` size and alignment instead of
- ``native`` size and alignment: see :ref:`struct-alignment` for details.
+ When no prefix character is given, native mode is the default. It
+ packs or unpacks data based on the platform and compiler on which
+ the Python interpreter was built.
+ The result of packing a given C struct includes pad bytes which
+ maintain proper alignment for the C types involved; similarly,
+ alignment is taken into account when unpacking. In contrast, when
+ communicating data between external sources, the programmer is
+ responsible for defining byte ordering and padding between elements.
+ See :ref:`struct-alignment` for details.
Several :mod:`struct` functions (and methods of :class:`Struct`) take a *buffer*
argument. This refers to objects that implement the :ref:`bufferobjects` and
Format Strings
--------------
-Format strings are the mechanism used to specify the expected layout when
-packing and unpacking data. They are built up from :ref:`format-characters`,
-which specify the type of data being packed/unpacked. In addition, there are
-special characters for controlling the :ref:`struct-alignment`.
+Format strings describe the data layout when
+packing and unpacking data. They are built up from :ref:`format characters<format-characters>`,
+which specify the type of data being packed/unpacked. In addition,
+special characters control the :ref:`byte order, size and alignment<struct-alignment>`.
+Each format string consists of an optional prefix character which
+describes the overall properties of the data and one or more format
+characters which describe the actual data values and padding.
.. _struct-alignment:
By default, C types are represented in the machine's native format and byte
order, and properly aligned by skipping pad bytes if necessary (according to the
rules used by the C compiler).
+This behavior is chosen so
+that the bytes of a packed struct correspond exactly to the memory layout
+of the corresponding C struct.
+Whether to use native byte ordering
+and padding or standard formats depends on the application.
.. index::
single: @ (at); in struct format strings
If the first character is not one of these, ``'@'`` is assumed.
-Native byte order is big-endian or little-endian, depending on the host
-system. For example, Intel x86 and AMD64 (x86-64) are little-endian;
-IBM z and most legacy architectures are big-endian;
-and ARM, RISC-V and IBM Power feature switchable endianness
-(bi-endian, though the former two are nearly always little-endian in practice).
-Use ``sys.byteorder`` to check the endianness of your system.
+Native byte order is big-endian or little-endian, depending on the
+host system. For example, Intel x86, AMD64 (x86-64), and Apple M1 are
+little-endian; IBM z and many legacy architectures are big-endian.
+Use :data:`sys.byteorder` to check the endianness of your system.
Native size and alignment are determined using the C compiler's
``sizeof`` expression. This is always combined with native byte order.
+--------+--------------------------+--------------------+----------------+------------+
| Format | C Type | Python type | Standard size | Notes |
+========+==========================+====================+================+============+
-| ``x`` | pad byte | no value | | |
+| ``x`` | pad byte | no value | | \(7) |
+--------+--------------------------+--------------------+----------------+------------+
| ``c`` | :c:expr:`char` | bytes of length 1 | 1 | |
+--------+--------------------------+--------------------+----------------+------------+
+--------+--------------------------+--------------------+----------------+------------+
| ``d`` | :c:expr:`double` | float | 8 | \(4) |
+--------+--------------------------+--------------------+----------------+------------+
-| ``s`` | :c:expr:`char[]` | bytes | | |
+| ``s`` | :c:expr:`char[]` | bytes | | \(9) |
+--------+--------------------------+--------------------+----------------+------------+
-| ``p`` | :c:expr:`char[]` | bytes | | |
+| ``p`` | :c:expr:`char[]` | bytes | | \(8) |
+--------+--------------------------+--------------------+----------------+------------+
| ``P`` | :c:expr:`void \*` | integer | | \(5) |
+--------+--------------------------+--------------------+----------------+------------+
operations. See the Wikipedia page on the `half-precision floating-point
format <half precision format_>`_ for more information.
+(7)
+ When packing, ``'x'`` inserts one NUL byte.
+
+(8)
+ The ``'p'`` format character encodes a "Pascal string", meaning a short
+ variable-length string stored in a *fixed number of bytes*, given by the count.
+ The first byte stored is the length of the string, or 255, whichever is
+ smaller. The bytes of the string follow. If the string passed in to
+ :func:`pack` is too long (longer than the count minus 1), only the leading
+ ``count-1`` bytes of the string are stored. If the string is shorter than
+ ``count-1``, it is padded with null bytes so that exactly count bytes in all
+ are used. Note that for :func:`unpack`, the ``'p'`` format character consumes
+ ``count`` bytes, but that the string returned can never contain more than 255
+ bytes.
+
+(9)
+ For the ``'s'`` format character, the count is interpreted as the length of the
+ bytes, not a repeat count like for the other format characters; for example,
+ ``'10s'`` means a single 10-byte string mapping to or from a single
+ Python byte string, while ``'10c'`` means 10
+ separate one byte character elements (e.g., ``cccccccccc``) mapping
+ to or from ten different Python byte objects. (See :ref:`struct-examples`
+ for a concrete demonstration of the difference.)
+ If a count is not given, it defaults to 1. For packing, the string is
+ truncated or padded with null bytes as appropriate to make it fit. For
+ unpacking, the resulting bytes object always has exactly the specified number
+ of bytes. As a special case, ``'0s'`` means a single, empty string (while
+ ``'0c'`` means 0 characters).
A format character may be preceded by an integral repeat count. For example,
the format string ``'4h'`` means exactly the same as ``'hhhh'``.
Whitespace characters between formats are ignored; a count and its format must
not contain whitespace though.
-For the ``'s'`` format character, the count is interpreted as the length of the
-bytes, not a repeat count like for the other format characters; for example,
-``'10s'`` means a single 10-byte string, while ``'10c'`` means 10 characters.
-If a count is not given, it defaults to 1. For packing, the string is
-truncated or padded with null bytes as appropriate to make it fit. For
-unpacking, the resulting bytes object always has exactly the specified number
-of bytes. As a special case, ``'0s'`` means a single, empty string (while
-``'0c'`` means 0 characters).
-
When packing a value ``x`` using one of the integer formats (``'b'``,
``'B'``, ``'h'``, ``'H'``, ``'i'``, ``'I'``, ``'l'``, ``'L'``,
``'q'``, ``'Q'``), if ``x`` is outside the valid range for that format
Previously, some of the integer formats wrapped out-of-range values and
raised :exc:`DeprecationWarning` instead of :exc:`struct.error`.
-The ``'p'`` format character encodes a "Pascal string", meaning a short
-variable-length string stored in a *fixed number of bytes*, given by the count.
-The first byte stored is the length of the string, or 255, whichever is
-smaller. The bytes of the string follow. If the string passed in to
-:func:`pack` is too long (longer than the count minus 1), only the leading
-``count-1`` bytes of the string are stored. If the string is shorter than
-``count-1``, it is padded with null bytes so that exactly count bytes in all
-are used. Note that for :func:`unpack`, the ``'p'`` format character consumes
-``count`` bytes, but that the string returned can never contain more than 255
-bytes.
-
.. index:: single: ? (question mark); in struct format strings
For the ``'?'`` format character, the return value is either :const:`True` or
^^^^^^^^
.. note::
- All examples assume a native byte order, size, and alignment with a
- big-endian machine.
+ Native byte order examples (designated by the ``'@'`` format prefix or
+ lack of any prefix character) may not match what the reader's
+ machine produces as
+ that depends on the platform and compiler.
+
+Pack and unpack integers of three different sizes, using big endian
+ordering::
+
+ >>> from struct import *
+ >>> pack(">bhl", 1, 2, 3)
+ b'\x01\x00\x02\x00\x00\x00\x03'
+ >>> unpack('>bhl', b'\x01\x00\x02\x00\x00\x00\x03'
+ (1, 2, 3)
+ >>> calcsize('>bhl')
+ 7
-A basic example of packing/unpacking three integers::
+Attempt to pack an integer which is too large for the defined field::
- >>> from struct import *
- >>> pack('hhl', 1, 2, 3)
- b'\x00\x01\x00\x02\x00\x00\x00\x03'
- >>> unpack('hhl', b'\x00\x01\x00\x02\x00\x00\x00\x03')
- (1, 2, 3)
- >>> calcsize('hhl')
- 8
+ >>> pack(">h", 99999)
+ Traceback (most recent call last):
+ File "<stdin>", line 1, in <module>
+ struct.error: 'h' format requires -32768 <= number <= 32767
+
+Demonstrate the difference between ``'s'`` and ``'c'`` format
+characters::
+
+ >>> pack("@ccc", b'1', b'2', b'3')
+ b'123'
+ >>> pack("@3s", b'123')
+ b'123'
Unpacked fields can be named by assigning them to variables or by wrapping
the result in a named tuple::
>>> Student._make(unpack('<10sHHb', record))
Student(name=b'raymond ', serialnum=4658, school=264, gradelevel=8)
-The ordering of format characters may have an impact on size since the padding
-needed to satisfy alignment requirements is different::
-
- >>> pack('ci', b'*', 0x12131415)
- b'*\x00\x00\x00\x12\x13\x14\x15'
- >>> pack('ic', 0x12131415, b'*')
- b'\x12\x13\x14\x15*'
- >>> calcsize('ci')
+The ordering of format characters may have an impact on size in native
+mode since padding is implicit. In standard mode, the user is
+responsible for inserting any desired padding.
+Note in
+the first ``pack`` call below that three NUL bytes were added after the
+packed ``'#'`` to align the following integer on a four-byte boundary.
+In this example, the output was produced on a little endian machine::
+
+ >>> pack('@ci', b'#', 0x12131415)
+ b'#\x00\x00\x00\x15\x14\x13\x12'
+ >>> pack('@ic', 0x12131415, b'#')
+ b'\x15\x14\x13\x12#'
+ >>> calcsize('@ci')
8
- >>> calcsize('ic')
+ >>> calcsize('@ic')
5
-The following format ``'llh0l'`` specifies two pad bytes at the end, assuming
-longs are aligned on 4-byte boundaries::
+The following format ``'llh0l'`` results in two pad bytes being added
+at the end, assuming the platform's longs are aligned on 4-byte boundaries::
- >>> pack('llh0l', 1, 2, 3)
+ >>> pack('@llh0l', 1, 2, 3)
b'\x00\x00\x00\x01\x00\x00\x00\x02\x00\x03\x00\x00'
-This only works when native size and alignment are in effect; standard size and
-alignment does not enforce any alignment.
-
.. seealso::
Module :mod:`array`
Packed binary storage of homogeneous data.
- Module :mod:`xdrlib`
- Packing and unpacking of XDR data.
+ Module :mod:`json`
+ JSON encoder and decoder.
+
+ Module :mod:`pickle`
+ Python object serialization.
+
+
+.. _applications:
+
+Applications
+------------
+
+Two main applications for the :mod:`struct` module exist, data
+interchange between Python and C code within an application or another
+application compiled using the same compiler (:ref:`native formats<struct-native-formats>`), and
+data interchange between applications using agreed upon data layout
+(:ref:`standard formats<struct-standard-formats>`). Generally speaking, the format strings
+constructed for these two domains are distinct.
+
+
+.. _struct-native-formats:
+
+Native Formats
+^^^^^^^^^^^^^^
+
+When constructing format strings which mimic native layouts, the
+compiler and machine architecture determine byte ordering and padding.
+In such cases, the ``@`` format character should be used to specify
+native byte ordering and data sizes. Internal pad bytes are normally inserted
+automatically. It is possible that a zero-repeat format code will be
+needed at the end of a format string to round up to the correct
+byte boundary for proper alignment of consective chunks of data.
+
+Consider these two simple examples (on a 64-bit, little-endian
+machine)::
+
+ >>> calcsize('@lhl')
+ 24
+ >>> calcsize('@llh')
+ 18
+
+Data is not padded to an 8-byte boundary at the end of the second
+format string without the use of extra padding. A zero-repeat format
+code solves that problem::
+
+ >>> calcsize('@llh0l')
+ 24
+
+The ``'x'`` format code can be used to specify the repeat, but for
+native formats it is better to use a zero-repeat format like ``'0l'``.
+
+By default, native byte ordering and alignment is used, but it is
+better to be explicit and use the ``'@'`` prefix character.
+
+
+.. _struct-standard-formats:
+
+Standard Formats
+^^^^^^^^^^^^^^^^
+
+When exchanging data beyond your process such as networking or storage,
+be precise. Specify the exact byte order, size, and alignment. Do
+not assume they match the native order of a particular machine.
+For example, network byte order is big-endian, while many popular CPUs
+are little-endian. By defining this explicitly, the user need not
+care about the specifics of the platform their code is running on.
+The first character should typically be ``<`` or ``>``
+(or ``!``). Padding is the responsibility of the programmer. The
+zero-repeat format character won't work. Instead, the user must
+explicitly add ``'x'`` pad bytes where needed. Revisiting the
+examples from the previous section, we have::
+
+ >>> calcsize('<qh6xq')
+ 24
+ >>> pack('<qh6xq', 1, 2, 3) == pack('@lhl', 1, 2, 3)
+ True
+ >>> calcsize('@llh')
+ 18
+ >>> pack('@llh', 1, 2, 3) == pack('<qqh', 1, 2, 3)
+ True
+ >>> calcsize('<qqh6x')
+ 24
+ >>> calcsize('@llh0l')
+ 24
+ >>> pack('@llh0l', 1, 2, 3) == pack('<qqh6x', 1, 2, 3)
+ True
+
+The above results (executed on a 64-bit machine) aren't guaranteed to
+match when executed on different machines. For example, the examples
+below were executed on a 32-bit machine::
+
+ >>> calcsize('<qqh6x')
+ 24
+ >>> calcsize('@llh0l')
+ 12
+ >>> pack('@llh0l', 1, 2, 3) == pack('<qqh6x', 1, 2, 3)
+ False
.. _struct-objects:
.. class:: Struct(format)
Return a new Struct object which writes and reads binary data according to
- the format string *format*. Creating a Struct object once and calling its
- methods is more efficient than calling the :mod:`struct` functions with the
- same format since the format string only needs to be compiled once.
+ the format string *format*. Creating a ``Struct`` object once and calling its
+ methods is more efficient than calling module-level functions with the
+ same format since the format string is only compiled once.
.. note::
If *env* is not ``None``, it must be a mapping that defines the environment
variables for the new process; these are used instead of the default
- behavior of inheriting the current process' environment. It is passed directly
- to :class:`Popen`.
+ behavior of inheriting the current process' environment. It is passed
+ directly to :class:`Popen`. This mapping can be str to str on any platform
+ or bytes to bytes on POSIX platforms much like :data:`os.environ` or
+ :data:`os.environb`.
Examples::
If *env* is not ``None``, it must be a mapping that defines the environment
variables for the new process; these are used instead of the default
- behavior of inheriting the current process' environment.
+ behavior of inheriting the current process' environment. This mapping can be
+ str to str on any platform or bytes to bytes on POSIX platforms much like
+ :data:`os.environ` or :data:`os.environb`.
.. note::
On Windows, SIGTERM is an alias for :meth:`terminate`. CTRL_C_EVENT and
CTRL_BREAK_EVENT can be sent to processes started with a *creationflags*
- parameter which includes `CREATE_NEW_PROCESS_GROUP`.
+ parameter which includes ``CREATE_NEW_PROCESS_GROUP``.
.. method:: Popen.terminate()
can then log the event, raise an exception to abort the operation,
or terminate the process entirely.
+ Note that audit hooks are primarily for collecting information about internal
+ or otherwise unobservable actions, whether by Python or libraries written in
+ Python. They are not suitable for implementing a "sandbox". In particular,
+ malicious code can trivially disable or bypass hooks added using this
+ function. At a minimum, any security-sensitive hooks must be added using the
+ C API :c:func:`PySys_AddAuditHook` before initialising the runtime, and any
+ modules allowing arbitrary memory modification (such as :mod:`ctypes`) should
+ be completely removed or closely monitored.
+
.. audit-event:: sys.addaudithook "" sys.addaudithook
Calling :func:`sys.addaudithook` will itself raise an auditing event
string, which means the current working directory.
To not prepend this potentially unsafe path, use the :option:`-P` command
- line option or the :envvar:`PYTHONSAFEPATH` environment variable?
+ line option or the :envvar:`PYTHONSAFEPATH` environment variable.
A program is free to modify this list for its own purposes. Only strings
should be added to :data:`sys.path`; all other data types are
class body.
The :class:`Generic` base class defines :meth:`~object.__class_getitem__` so
-that ``LoggedVar[t]`` is valid as a type::
+that ``LoggedVar[T]`` is valid as a type::
from collections.abc import Iterable
is equivalent to ``Tuple[Any, ...]``, and in turn to :class:`tuple`.
.. deprecated:: 3.9
- :class:`builtins.tuple <tuple>` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`builtins.tuple <tuple>` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. data:: Union
respectively.
.. deprecated:: 3.9
- :class:`collections.abc.Callable` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`collections.abc.Callable` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. versionchanged:: 3.10
``Callable`` now supports :class:`ParamSpec` and :data:`Concatenate`.
.. versionadded:: 3.5.2
.. deprecated:: 3.9
- :class:`builtins.type <type>` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`builtins.type <type>` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. data:: Literal
``Unpack[Ts]``.)
Type variable tuples must *always* be unpacked. This helps distinguish type
- variable types from normal type variables::
+ variable tuples from normal type variables::
x: Ts # Not valid
x: tuple[Ts] # Not valid
Shape = TypeVarTuple('Shape')
class Array(Generic[*Shape]):
def __getitem__(self, key: tuple[*Shape]) -> float: ...
- def __abs__(self) -> Array[*Shape]: ...
+ def __abs__(self) -> "Array[*Shape]": ...
def get_shape(self) -> tuple[*Shape]: ...
Type variable tuples can be happily combined with normal type variables::
...
.. deprecated:: 3.9
- :class:`builtins.dict <dict>` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`builtins.dict <dict>` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: List(list, MutableSequence[T])
return [item for item in vector if item > 0]
.. deprecated:: 3.9
- :class:`builtins.list <list>` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`builtins.list <list>` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Set(set, MutableSet[T])
to use an abstract collection type such as :class:`AbstractSet`.
.. deprecated:: 3.9
- :class:`builtins.set <set>` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`builtins.set <set>` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: FrozenSet(frozenset, AbstractSet[T_co])
A generic version of :class:`builtins.frozenset <frozenset>`.
.. deprecated:: 3.9
- :class:`builtins.frozenset <frozenset>` now supports ``[]``. See
- :pep:`585` and :ref:`types-genericalias`.
+ :class:`builtins.frozenset <frozenset>`
+ now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. note:: :data:`Tuple` is a special form.
.. versionadded:: 3.5.2
.. deprecated:: 3.9
- :class:`collections.defaultdict` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`collections.defaultdict` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: OrderedDict(collections.OrderedDict, MutableMapping[KT, VT])
.. versionadded:: 3.7.2
.. deprecated:: 3.9
- :class:`collections.OrderedDict` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`collections.OrderedDict` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: ChainMap(collections.ChainMap, MutableMapping[KT, VT])
.. versionadded:: 3.6.1
.. deprecated:: 3.9
- :class:`collections.ChainMap` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`collections.ChainMap` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Counter(collections.Counter, Dict[T, int])
.. versionadded:: 3.6.1
.. deprecated:: 3.9
- :class:`collections.Counter` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`collections.Counter` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Deque(deque, MutableSequence[T])
.. versionadded:: 3.6.1
.. deprecated:: 3.9
- :class:`collections.deque` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`collections.deque` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
Other concrete types
""""""""""""""""""""
represent the types of I/O streams such as returned by
:func:`open`.
- .. deprecated-removed:: 3.8 3.12
+ .. deprecated-removed:: 3.8 3.13
The ``typing.io`` namespace is deprecated and will be removed.
These types should be directly imported from ``typing`` instead.
``Pattern[str]``, ``Pattern[bytes]``, ``Match[str]``, or
``Match[bytes]``.
- .. deprecated-removed:: 3.8 3.12
+ .. deprecated-removed:: 3.8 3.13
The ``typing.re`` namespace is deprecated and will be removed.
These types should be directly imported from ``typing`` instead.
Corresponding to collections in :mod:`collections.abc`
""""""""""""""""""""""""""""""""""""""""""""""""""""""
-.. class:: AbstractSet(Sized, Collection[T_co])
+.. class:: AbstractSet(Collection[T_co])
A generic version of :class:`collections.abc.Set`.
.. deprecated:: 3.9
- :class:`collections.abc.Set` now supports ``[]``. See :pep:`585` and
- :ref:`types-genericalias`.
+ :class:`collections.abc.Set` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: ByteString(Sequence[int])
annotate arguments of any of the types mentioned above.
.. deprecated:: 3.9
- :class:`collections.abc.ByteString` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.ByteString` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Collection(Sized, Iterable[T_co], Container[T_co])
.. versionadded:: 3.6.0
.. deprecated:: 3.9
- :class:`collections.abc.Collection` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Collection` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Container(Generic[T_co])
A generic version of :class:`collections.abc.Container`.
.. deprecated:: 3.9
- :class:`collections.abc.Container` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Container` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
-.. class:: ItemsView(MappingView, Generic[KT_co, VT_co])
+.. class:: ItemsView(MappingView, AbstractSet[tuple[KT_co, VT_co]])
A generic version of :class:`collections.abc.ItemsView`.
.. deprecated:: 3.9
- :class:`collections.abc.ItemsView` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.ItemsView` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
-.. class:: KeysView(MappingView[KT_co], AbstractSet[KT_co])
+.. class:: KeysView(MappingView, AbstractSet[KT_co])
A generic version of :class:`collections.abc.KeysView`.
.. deprecated:: 3.9
- :class:`collections.abc.KeysView` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.KeysView` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
-.. class:: Mapping(Sized, Collection[KT], Generic[VT_co])
+.. class:: Mapping(Collection[KT], Generic[KT, VT_co])
A generic version of :class:`collections.abc.Mapping`.
This type can be used as follows::
return word_list[word]
.. deprecated:: 3.9
- :class:`collections.abc.Mapping` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Mapping` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
-.. class:: MappingView(Sized, Iterable[T_co])
+.. class:: MappingView(Sized)
A generic version of :class:`collections.abc.MappingView`.
.. deprecated:: 3.9
- :class:`collections.abc.MappingView` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.MappingView` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: MutableMapping(Mapping[KT, VT])
A generic version of :class:`collections.abc.MutableMapping`.
.. deprecated:: 3.9
- :class:`collections.abc.MutableMapping` now supports ``[]``. See
- :pep:`585` and :ref:`types-genericalias`.
+ :class:`collections.abc.MutableMapping`
+ now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: MutableSequence(Sequence[T])
A generic version of :class:`collections.abc.MutableSequence`.
.. deprecated:: 3.9
- :class:`collections.abc.MutableSequence` now supports ``[]``. See
- :pep:`585` and :ref:`types-genericalias`.
+ :class:`collections.abc.MutableSequence`
+ now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: MutableSet(AbstractSet[T])
A generic version of :class:`collections.abc.MutableSet`.
.. deprecated:: 3.9
- :class:`collections.abc.MutableSet` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.MutableSet` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Sequence(Reversible[T_co], Collection[T_co])
A generic version of :class:`collections.abc.Sequence`.
.. deprecated:: 3.9
- :class:`collections.abc.Sequence` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Sequence` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
-.. class:: ValuesView(MappingView[VT_co])
+.. class:: ValuesView(MappingView, Collection[_VT_co])
A generic version of :class:`collections.abc.ValuesView`.
.. deprecated:: 3.9
- :class:`collections.abc.ValuesView` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.ValuesView` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
Corresponding to other types in :mod:`collections.abc`
""""""""""""""""""""""""""""""""""""""""""""""""""""""
A generic version of :class:`collections.abc.Iterable`.
.. deprecated:: 3.9
- :class:`collections.abc.Iterable` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Iterable` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Iterator(Iterable[T_co])
A generic version of :class:`collections.abc.Iterator`.
.. deprecated:: 3.9
- :class:`collections.abc.Iterator` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Iterator` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Generator(Iterator[T_co], Generic[T_co, T_contra, V_co])
start += 1
.. deprecated:: 3.9
- :class:`collections.abc.Generator` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Generator` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Hashable
A generic version of :class:`collections.abc.Reversible`.
.. deprecated:: 3.9
- :class:`collections.abc.Reversible` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Reversible` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Sized
.. versionadded:: 3.5.3
.. deprecated:: 3.9
- :class:`collections.abc.Coroutine` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Coroutine` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: AsyncGenerator(AsyncIterator[T_co], Generic[T_co, T_contra])
.. versionadded:: 3.6.1
.. deprecated:: 3.9
- :class:`collections.abc.AsyncGenerator` now supports ``[]``. See
- :pep:`585` and :ref:`types-genericalias`.
+ :class:`collections.abc.AsyncGenerator`
+ now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: AsyncIterable(Generic[T_co])
.. versionadded:: 3.5.2
.. deprecated:: 3.9
- :class:`collections.abc.AsyncIterable` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.AsyncIterable` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: AsyncIterator(AsyncIterable[T_co])
.. versionadded:: 3.5.2
.. deprecated:: 3.9
- :class:`collections.abc.AsyncIterator` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.AsyncIterator` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: Awaitable(Generic[T_co])
.. versionadded:: 3.5.2
.. deprecated:: 3.9
- :class:`collections.abc.Awaitable` now supports ``[]``. See :pep:`585`
- and :ref:`types-genericalias`.
+ :class:`collections.abc.Awaitable` now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
Context manager types
.. versionadded:: 3.6.0
.. deprecated:: 3.9
- :class:`contextlib.AbstractContextManager` now supports ``[]``. See
- :pep:`585` and :ref:`types-genericalias`.
+ :class:`contextlib.AbstractContextManager`
+ now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
.. class:: AsyncContextManager(Generic[T_co])
.. versionadded:: 3.6.2
.. deprecated:: 3.9
- :class:`contextlib.AbstractAsyncContextManager` now supports ``[]``. See
- :pep:`585` and :ref:`types-genericalias`.
+ :class:`contextlib.AbstractAsyncContextManager`
+ now supports subscripting (``[]``).
+ See :pep:`585` and :ref:`types-genericalias`.
Protocols
---------
+----------------------------------+---------------+-------------------+----------------+
| Feature | Deprecated in | Projected removal | PEP/issue |
+==================================+===============+===================+================+
-| ``typing.io`` and ``typing.re`` | 3.8 | 3.12 | :issue:`38291` |
+| ``typing.io`` and ``typing.re`` | 3.8 | 3.13 | :issue:`38291` |
| submodules | | | |
+----------------------------------+---------------+-------------------+----------------+
| ``typing`` versions of standard | 3.9 | Undecided | :pep:`585` |
--------------
-The :mod:`venv` module provides support for creating lightweight "virtual
-environments" with their own site directories, optionally isolated from system
-site directories. Each virtual environment has its own Python binary (which
-matches the version of the binary that was used to create this environment) and
-can have its own independent set of installed Python packages in its site
-directories.
+.. _venv-def:
+.. _venv-intro:
+
+The :mod:`!venv` module supports creating lightweight "virtual environments",
+each with their own independent set of Python packages installed in
+their :mod:`site` directories.
+A virtual environment is created on top of an existing
+Python installation, known as the virtual environment's "base" Python, and may
+optionally be isolated from the packages in the base environment,
+so only those explicitly installed in the virtual environment are available.
+
+When used from within a virtual environment, common installation tools such as
+`pip`_ will install Python packages into a virtual environment
+without needing to be told to do so explicitly.
-See :pep:`405` for more information about Python virtual environments.
+See :pep:`405` for more background on Python virtual environments.
.. seealso::
.. include:: /using/venv-create.inc
+.. _venv-explanation:
-.. _venv-def:
+How venvs work
+--------------
-.. note:: A virtual environment is a Python environment such that the Python
- interpreter, libraries and scripts installed into it are isolated from those
- installed in other virtual environments, and (by default) any libraries
- installed in a "system" Python, i.e., one which is installed as part of your
- operating system.
-
- A virtual environment is a directory tree which contains Python executable
- files and other files which indicate that it is a virtual environment.
-
- Common installation tools such as setuptools_ and pip_ work as
- expected with virtual environments. In other words, when a virtual
- environment is active, they install Python packages into the virtual
- environment without needing to be told to do so explicitly.
-
- When a virtual environment is active (i.e., the virtual environment's Python
- interpreter is running), the attributes :attr:`sys.prefix` and
- :attr:`sys.exec_prefix` point to the base directory of the virtual
- environment, whereas :attr:`sys.base_prefix` and
- :attr:`sys.base_exec_prefix` point to the non-virtual environment Python
- installation which was used to create the virtual environment. If a virtual
- environment is not active, then :attr:`sys.prefix` is the same as
- :attr:`sys.base_prefix` and :attr:`sys.exec_prefix` is the same as
- :attr:`sys.base_exec_prefix` (they all point to a non-virtual environment
- Python installation).
-
- When a virtual environment is active, any options that change the
- installation path will be ignored from all :mod:`distutils` configuration
- files to prevent projects being inadvertently installed outside of the
- virtual environment.
-
- When working in a command shell, users can make a virtual environment active
- by running an ``activate`` script in the virtual environment's executables
- directory (the precise filename and command to use the file is
- shell-dependent), which prepends the virtual environment's directory for
- executables to the ``PATH`` environment variable for the running shell. There
- should be no need in other circumstances to activate a virtual
- environment; scripts installed into virtual environments have a "shebang"
- line which points to the virtual environment's Python interpreter. This means
- that the script will run with that interpreter regardless of the value of
- ``PATH``. On Windows, "shebang" line processing is supported if you have the
- Python Launcher for Windows installed (this was added to Python in 3.3 - see
- :pep:`397` for more details). Thus, double-clicking an installed script in a
- Windows Explorer window should run the script with the correct interpreter
- without there needing to be any reference to its virtual environment in
- ``PATH``.
+When a Python interpreter is running from a virtual environment,
+:data:`sys.prefix` and :data:`sys.exec_prefix`
+point to the directories of the virtual environment,
+whereas :data:`sys.base_prefix` and :data:`sys.base_exec_prefix`
+point to those of the base Python used to create the environment.
+It is sufficient to check
+``sys.prefix == sys.base_prefix`` to determine if the current interpreter is
+running from a virtual environment.
+
+A virtual environment may be "activated" using a script in its binary directory
+(``bin`` on POSIX; ``Scripts`` on Windows).
+This will prepend that directory to your :envvar:`!PATH`, so that running
+:program:`!python` will invoke the environment's Python interpreter
+and you can run installed scripts without having to use their full path.
+The invocation of the activation script is platform-specific
+(:samp:`{<venv>}` must be replaced by the path to the directory
+containing the virtual environment):
+
++-------------+------------+--------------------------------------------------+
+| Platform | Shell | Command to activate virtual environment |
++=============+============+==================================================+
+| POSIX | bash/zsh | :samp:`$ source {<venv>}/bin/activate` |
+| +------------+--------------------------------------------------+
+| | fish | :samp:`$ source {<venv>}/bin/activate.fish` |
+| +------------+--------------------------------------------------+
+| | csh/tcsh | :samp:`$ source {<venv>}/bin/activate.csh` |
+| +------------+--------------------------------------------------+
+| | PowerShell | :samp:`$ {<venv>}/bin/Activate.ps1` |
++-------------+------------+--------------------------------------------------+
+| Windows | cmd.exe | :samp:`C:\\> {<venv>}\\Scripts\\activate.bat` |
+| +------------+--------------------------------------------------+
+| | PowerShell | :samp:`PS C:\\> {<venv>}\\Scripts\\Activate.ps1` |
++-------------+------------+--------------------------------------------------+
+
+.. versionadded:: 3.4
+ :program:`!fish` and :program:`!csh` activation scripts.
+
+.. versionadded:: 3.8
+ PowerShell activation scripts installed under POSIX for PowerShell Core
+ support.
+
+You don't specifically *need* to activate a virtual environment,
+as you can just specify the full path to that environment's
+Python interpreter when invoking Python.
+Furthermore, all scripts installed in the environment
+should be runnable without activating it.
+
+In order to achieve this, scripts installed into virtual environments have
+a "shebang" line which points to the environment's Python interpreter,
+i.e. :samp:`#!/{<path-to-venv>}/bin/python`.
+This means that the script will run with that interpreter regardless of the
+value of :envvar:`!PATH`. On Windows, "shebang" line processing is supported if
+you have the :ref:`launcher` installed. Thus, double-clicking an installed
+script in a Windows Explorer window should run it with the correct interpreter
+without the environment needing to be activated or on the :envvar:`!PATH`.
+
+When a virtual environment has been activated, the :envvar:`!VIRTUAL_ENV`
+environment variable is set to the path of the environment.
+Since explicitly activating a virtual environment is not required to use it,
+:envvar:`!VIRTUAL_ENV` cannot be relied upon to determine
+whether a virtual environment is being used.
.. warning:: Because scripts installed in environments should not expect the
environment to be activated, their shebang lines contain the absolute paths
environment in its new location. Otherwise, software installed into the
environment may not work as expected.
+You can deactivate a virtual environment by typing ``deactivate`` in your shell.
+The exact mechanism is platform-specific and is an internal implementation
+detail (typically, a script or shell function will be used).
+
+
.. _venv-api:
API
``clear=True``, contents of the environment directory will be cleared
and then all necessary subdirectories will be recreated.
+ The returned context object is a :class:`types.SimpleNamespace` with the
+ following attributes:
+
+ * ``env_dir`` - The location of the virtual environment. Used for
+ ``__VENV_DIR__`` in activation scripts (see :meth:`install_scripts`).
+
+ * ``env_name`` - The name of the virtual environment. Used for
+ ``__VENV_NAME__`` in activation scripts (see :meth:`install_scripts`).
+
+ * ``prompt`` - The prompt to be used by the activation scripts. Used for
+ ``__VENV_PROMPT__`` in activation scripts (see :meth:`install_scripts`).
+
+ * ``executable`` - The underlying Python executable used by the virtual
+ environment. This takes into account the case where a virtual environment
+ is created from another virtual environment.
+
+ * ``inc_path`` - The include path for the virtual environment.
+
+ * ``lib_path`` - The purelib path for the virtual environment.
+
+ * ``bin_path`` - The script path for the virtual environment.
+
+ * ``bin_name`` - The name of the script path relative to the virtual
+ environment location. Used for ``__VENV_BIN_NAME__`` in activation
+ scripts (see :meth:`install_scripts`).
+
+ * ``env_exe`` - The name of the Python interpreter in the virtual
+ environment. Used for ``__VENV_PYTHON__`` in activation scripts
+ (see :meth:`install_scripts`).
+
+ * ``env_exec_cmd`` - The name of the Python interpreter, taking into
+ account filesystem redirections. This can be used to run Python in
+ the virtual environment.
+
+
+ .. versionchanged:: 3.12
+ The attribute ``lib_path`` was added to the context, and the context
+ object was documented.
+
.. versionchanged:: 3.11
The *venv*
:ref:`sysconfig installation scheme <installation_paths>`
``ProxyType`` or ``CallableProxyType``, depending on whether *object* is
callable. Proxy objects are not :term:`hashable` regardless of the referent; this
avoids a number of problems related to their fundamentally mutable nature, and
- prevent their use as dictionary keys. *callback* is the same as the parameter
+ prevents their use as dictionary keys. *callback* is the same as the parameter
of the same name to the :func:`ref` function.
+ Accessing an attribute of the proxy object after the referent is
+ garbage collected raises :exc:`ReferenceError`.
+
.. versionchanged:: 3.8
Extended the operator support on proxy objects to include the matrix
multiplication operators ``@`` and ``@=``.
discarded when no strong reference to it exists any more.
-.. class:: WeakMethod(method)
+.. class:: WeakMethod(method[, callback])
A custom :class:`ref` subclass which simulates a weak reference to a bound
method (i.e., a method defined on a class and looked up on an instance).
>>> r()
>>>
+ *callback* is the same as the parameter of the same name to the :func:`ref` function.
+
.. versionadded:: 3.4
.. class:: finalize(obj, func, /, *args, **kwargs)
.. moduleauthor:: Phillip J. Eby <pje@telecommunity.com>
.. sectionauthor:: Phillip J. Eby <pje@telecommunity.com>
+**Source code:** :source:`Lib/wsgiref`
+
--------------
The Web Server Gateway Interface (WSGI) is a standard interface between web
.. moduleauthor:: Paul Ganssle <paul@ganssle.io>
.. sectionauthor:: Paul Ganssle <paul@ganssle.io>
+**Source code:** :source:`Lib/zoneinfo`
+
--------------
The :mod:`zoneinfo` module provides a concrete time zone implementation to
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+Audioop
+-------
+
+The audioop module uses the code base in g771.c file of the SoX project::
+
+ Programming the AdLib/Sound Blaster
+ FM Music Chips
+ Version 2.0 (24 Feb 1992)
+ Copyright (c) 1991, 1992 by Jeffrey S. Lee
+ jlee@smylex.uucp
+ Warranty and Copyright Policy
+ This document is provided on an "as-is" basis, and its author makes
+ no warranty or representation, express or implied, with respect to
+ its quality performance or fitness for a particular purpose. In no
+ event will the author of this document be liable for direct, indirect,
+ special, incidental, or consequential damages arising out of the use
+ or inability to use the information contained within. Use of this
+ document is at your own risk.
+ This file may be used and copied freely so long as the applicable
+ copyright notices are retained, and no modifications are made to the
+ text of the document. No money shall be charged for its distribution
+ beyond reasonable shipping, handling and duplication costs, nor shall
+ proprietary changes be made to this document so that it cannot be
+ distributed freely. This document may not be included in published
+ material or commercial packages without the written consent of its
+ author.
-@echo off\r
-setlocal\r
-\r
-pushd %~dp0\r
-\r
-set this=%~n0\r
-\r
-call ..\PCbuild\find_python.bat %PYTHON%\r
-\r
-if not defined PYTHON set PYTHON=py\r
-\r
-if not defined SPHINXBUILD (\r
- %PYTHON% -c "import sphinx" > nul 2> nul\r
- if errorlevel 1 (\r
- echo Installing sphinx with %PYTHON%\r
- %PYTHON% -m pip install -r requirements.txt\r
- if errorlevel 1 exit /B\r
- )\r
- set SPHINXBUILD=%PYTHON% -c "import sphinx.cmd.build, sys; sys.exit(sphinx.cmd.build.main())"\r
-)\r
-\r
-%PYTHON% -c "import python_docs_theme" > nul 2> nul\r
-if errorlevel 1 (\r
- echo Installing python-docs-theme with %PYTHON%\r
- %PYTHON% -m pip install python-docs-theme\r
- if errorlevel 1 exit /B\r
-)\r
-\r
-if not defined BLURB (\r
- %PYTHON% -c "import blurb" > nul 2> nul\r
- if errorlevel 1 (\r
- echo Installing blurb with %PYTHON%\r
- rem Should have been installed with Sphinx earlier\r
- %PYTHON% -m pip install blurb\r
- if errorlevel 1 exit /B\r
- )\r
- set BLURB=%PYTHON% -m blurb\r
-)\r
-\r
-if not defined SPHINXLINT (\r
- %PYTHON% -c "import sphinxlint" > nul 2> nul\r
- if errorlevel 1 (\r
- echo Installing sphinx-lint with %PYTHON%\r
- rem Should have been installed with Sphinx earlier\r
- %PYTHON% -m pip install sphinx-lint\r
- if errorlevel 1 exit /B\r
- )\r
- set SPHINXLINT=%PYTHON% -m sphinxlint\r
-)\r
-\r
-if "%1" NEQ "htmlhelp" goto :skiphhcsearch\r
-if exist "%HTMLHELP%" goto :skiphhcsearch\r
-\r
-rem Search for HHC in likely places\r
-set HTMLHELP=\r
-where hhc /q && set "HTMLHELP=hhc" && goto :skiphhcsearch\r
-where /R ..\externals hhc > "%TEMP%\hhc.loc" 2> nul && set /P HTMLHELP= < "%TEMP%\hhc.loc" & del "%TEMP%\hhc.loc"\r
-if not exist "%HTMLHELP%" where /R "%ProgramFiles(x86)%" hhc > "%TEMP%\hhc.loc" 2> nul && set /P HTMLHELP= < "%TEMP%\hhc.loc" & del "%TEMP%\hhc.loc"\r
-if not exist "%HTMLHELP%" where /R "%ProgramFiles%" hhc > "%TEMP%\hhc.loc" 2> nul && set /P HTMLHELP= < "%TEMP%\hhc.loc" & del "%TEMP%\hhc.loc"\r
-if not exist "%HTMLHELP%" (\r
- echo.\r
- echo.The HTML Help Workshop was not found. Set the HTMLHELP variable\r
- echo.to the path to hhc.exe or download and install it from\r
- echo.http://msdn.microsoft.com/en-us/library/ms669985\r
- exit /B 1\r
-)\r
-:skiphhcsearch\r
-\r
-if not defined DISTVERSION for /f "usebackq" %%v in (`%PYTHON% tools/extensions/patchlevel.py`) do set DISTVERSION=%%v\r
-\r
-if not defined BUILDDIR set BUILDDIR=build\r
-\r
-rem Targets that don't require sphinx-build\r
-if "%1" EQU "" goto help\r
-if "%1" EQU "help" goto help\r
-if "%1" EQU "check" goto check\r
-if "%1" EQU "serve" goto serve\r
-if "%1" == "clean" (\r
- rmdir /q /s "%BUILDDIR%"\r
- goto end\r
-)\r
-\r
-%SPHINXBUILD% >nul 2> nul\r
-if errorlevel 9009 (\r
- echo.\r
- echo.The 'sphinx-build' command was not found. Make sure you have Sphinx\r
- echo.installed, then set the SPHINXBUILD environment variable to point\r
- echo.to the full path of the 'sphinx-build' executable. Alternatively you\r
- echo.may add the Sphinx directory to PATH.\r
- echo.\r
- echo.If you don't have Sphinx installed, grab it from\r
- echo.http://sphinx-doc.org/\r
- popd\r
- exit /B 1\r
-)\r
-\r
-rem Targets that do require sphinx-build and have their own label\r
-if "%1" EQU "htmlview" goto htmlview\r
-\r
-rem Everything else\r
-goto build\r
-\r
-:help\r
-echo.usage: %this% BUILDER [filename ...]\r
-echo.\r
-echo.Call %this% with the desired Sphinx builder as the first argument, e.g.\r
-echo.``%this% html`` or ``%this% doctest``. Interesting targets that are\r
-echo.always available include:\r
-echo.\r
-echo. Provided by Sphinx:\r
-echo. html, htmlhelp, latex, text\r
-echo. suspicious, linkcheck, changes, doctest\r
-echo. Provided by this script:\r
-echo. clean, check, htmlview\r
-echo.\r
-echo.All arguments past the first one are passed through to sphinx-build as\r
-echo.filenames to build or are ignored. See README.rst in this directory or\r
-echo.the documentation for your version of Sphinx for more exhaustive lists\r
-echo.of available targets and descriptions of each.\r
-echo.\r
-echo.This script assumes that the SPHINXBUILD environment variable contains\r
-echo.a legitimate command for calling sphinx-build, or that sphinx-build is\r
-echo.on your PATH if SPHINXBUILD is not set. Options for sphinx-build can\r
-echo.be passed by setting the SPHINXOPTS environment variable.\r
-goto end\r
-\r
-:build\r
-if not exist "%BUILDDIR%" mkdir "%BUILDDIR%"\r
-\r
-rem PY_MISC_NEWS_DIR is also used by our Sphinx extension in tools/extensions/pyspecific.py\r
-if not defined PY_MISC_NEWS_DIR set PY_MISC_NEWS_DIR=%BUILDDIR%\%1\r
-if not exist "%PY_MISC_NEWS_DIR%" mkdir "%PY_MISC_NEWS_DIR%"\r
-if exist ..\Misc\NEWS (\r
- echo.Copying Misc\NEWS to %PY_MISC_NEWS_DIR%\NEWS\r
- copy ..\Misc\NEWS "%PY_MISC_NEWS_DIR%\NEWS" > nul\r
-) else if exist ..\Misc\NEWS.D (\r
- if defined BLURB (\r
- echo.Merging Misc/NEWS with %BLURB%\r
- %BLURB% merge -f "%PY_MISC_NEWS_DIR%\NEWS"\r
- ) else (\r
- echo.No Misc/NEWS file and Blurb is not available.\r
- exit /B 1\r
- )\r
-)\r
-\r
-if defined PAPER (\r
- set SPHINXOPTS=-D latex_elements.papersize=%PAPER% %SPHINXOPTS%\r
-)\r
-if "%1" EQU "htmlhelp" (\r
- set SPHINXOPTS=-D html_theme_options.body_max_width=none %SPHINXOPTS%\r
-)\r
-cmd /S /C "%SPHINXBUILD% %SPHINXOPTS% -b%1 -dbuild\doctrees . "%BUILDDIR%\%1" %2 %3 %4 %5 %6 %7 %8 %9"\r
-\r
-if "%1" EQU "htmlhelp" (\r
- "%HTMLHELP%" "%BUILDDIR%\htmlhelp\python%DISTVERSION:.=%.hhp"\r
- rem hhc.exe seems to always exit with code 1, reset to 0 for less than 2\r
- if not errorlevel 2 cmd /C exit /b 0\r
-)\r
-\r
-echo.\r
-if errorlevel 1 (\r
- echo.Build failed (exit code %ERRORLEVEL%^), check for error messages\r
- echo.above. Any output will be found in %BUILDDIR%\%1\r
-) else (\r
- echo.Build succeeded. All output should be in %BUILDDIR%\%1\r
-)\r
-goto end\r
-\r
-:htmlview\r
-if NOT "%2" EQU "" (\r
- echo.Can't specify filenames to build with htmlview target, ignoring.\r
-)\r
-cmd /C %this% html\r
-\r
-if EXIST "%BUILDDIR%\html\index.html" (\r
- echo.Opening "%BUILDDIR%\html\index.html" in the default web browser...\r
- start "" "%BUILDDIR%\html\index.html"\r
-)\r
-\r
-goto end\r
-\r
-:check\r
-rem Check the docs and NEWS files with sphinx-lint.\r
-rem Ignore the tools dir and check that the default role is not used.\r
-cmd /S /C "%SPHINXLINT% -i tools --enable default-role"\r
-cmd /S /C "%SPHINXLINT% --enable default-role ..\Misc\NEWS.d\next\ "\r
-goto end\r
-\r
-:serve\r
-echo.The serve target was removed, use htmlview instead (see bpo-36329)\r
-goto end\r
-\r
-:end\r
-popd\r
+@echo off
+setlocal
+
+pushd %~dp0
+
+set this=%~n0
+
+call ..\PCbuild\find_python.bat %PYTHON%
+
+if not defined PYTHON set PYTHON=py
+
+if not defined SPHINXBUILD (
+ %PYTHON% -c "import sphinx" > nul 2> nul
+ if errorlevel 1 (
+ echo Installing sphinx with %PYTHON%
+ %PYTHON% -m pip install -r requirements.txt
+ if errorlevel 1 exit /B
+ )
+ set SPHINXBUILD=%PYTHON% -c "import sphinx.cmd.build, sys; sys.exit(sphinx.cmd.build.main())"
+)
+
+%PYTHON% -c "import python_docs_theme" > nul 2> nul
+if errorlevel 1 (
+ echo Installing python-docs-theme with %PYTHON%
+ %PYTHON% -m pip install python-docs-theme
+ if errorlevel 1 exit /B
+)
+
+if not defined BLURB (
+ %PYTHON% -c "import blurb" > nul 2> nul
+ if errorlevel 1 (
+ echo Installing blurb with %PYTHON%
+ rem Should have been installed with Sphinx earlier
+ %PYTHON% -m pip install blurb
+ if errorlevel 1 exit /B
+ )
+ set BLURB=%PYTHON% -m blurb
+)
+
+if not defined SPHINXLINT (
+ %PYTHON% -c "import sphinxlint" > nul 2> nul
+ if errorlevel 1 (
+ echo Installing sphinx-lint with %PYTHON%
+ rem Should have been installed with Sphinx earlier
+ %PYTHON% -m pip install sphinx-lint
+ if errorlevel 1 exit /B
+ )
+ set SPHINXLINT=%PYTHON% -m sphinxlint
+)
+
+if "%1" NEQ "htmlhelp" goto :skiphhcsearch
+if exist "%HTMLHELP%" goto :skiphhcsearch
+
+rem Search for HHC in likely places
+set HTMLHELP=
+where hhc /q && set "HTMLHELP=hhc" && goto :skiphhcsearch
+where /R ..\externals hhc > "%TEMP%\hhc.loc" 2> nul && set /P HTMLHELP= < "%TEMP%\hhc.loc" & del "%TEMP%\hhc.loc"
+if not exist "%HTMLHELP%" where /R "%ProgramFiles(x86)%" hhc > "%TEMP%\hhc.loc" 2> nul && set /P HTMLHELP= < "%TEMP%\hhc.loc" & del "%TEMP%\hhc.loc"
+if not exist "%HTMLHELP%" where /R "%ProgramFiles%" hhc > "%TEMP%\hhc.loc" 2> nul && set /P HTMLHELP= < "%TEMP%\hhc.loc" & del "%TEMP%\hhc.loc"
+if not exist "%HTMLHELP%" (
+ echo.
+ echo.The HTML Help Workshop was not found. Set the HTMLHELP variable
+ echo.to the path to hhc.exe or download and install it from
+ echo.http://msdn.microsoft.com/en-us/library/ms669985
+ exit /B 1
+)
+:skiphhcsearch
+
+if not defined DISTVERSION for /f "usebackq" %%v in (`%PYTHON% tools/extensions/patchlevel.py`) do set DISTVERSION=%%v
+
+if not defined BUILDDIR set BUILDDIR=build
+
+rem Targets that don't require sphinx-build
+if "%1" EQU "" goto help
+if "%1" EQU "help" goto help
+if "%1" EQU "check" goto check
+if "%1" EQU "serve" goto serve
+if "%1" == "clean" (
+ rmdir /q /s "%BUILDDIR%"
+ goto end
+)
+
+%SPHINXBUILD% >nul 2> nul
+if errorlevel 9009 (
+ echo.
+ echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
+ echo.installed, then set the SPHINXBUILD environment variable to point
+ echo.to the full path of the 'sphinx-build' executable. Alternatively you
+ echo.may add the Sphinx directory to PATH.
+ echo.
+ echo.If you don't have Sphinx installed, grab it from
+ echo.http://sphinx-doc.org/
+ popd
+ exit /B 1
+)
+
+rem Targets that do require sphinx-build and have their own label
+if "%1" EQU "htmlview" goto htmlview
+
+rem Everything else
+goto build
+
+:help
+echo.usage: %this% BUILDER [filename ...]
+echo.
+echo.Call %this% with the desired Sphinx builder as the first argument, e.g.
+echo.``%this% html`` or ``%this% doctest``. Interesting targets that are
+echo.always available include:
+echo.
+echo. Provided by Sphinx:
+echo. html, htmlhelp, latex, text
+echo. suspicious, linkcheck, changes, doctest
+echo. Provided by this script:
+echo. clean, check, htmlview
+echo.
+echo.All arguments past the first one are passed through to sphinx-build as
+echo.filenames to build or are ignored. See README.rst in this directory or
+echo.the documentation for your version of Sphinx for more exhaustive lists
+echo.of available targets and descriptions of each.
+echo.
+echo.This script assumes that the SPHINXBUILD environment variable contains
+echo.a legitimate command for calling sphinx-build, or that sphinx-build is
+echo.on your PATH if SPHINXBUILD is not set. Options for sphinx-build can
+echo.be passed by setting the SPHINXOPTS environment variable.
+goto end
+
+:build
+if not exist "%BUILDDIR%" mkdir "%BUILDDIR%"
+
+rem PY_MISC_NEWS_DIR is also used by our Sphinx extension in tools/extensions/pyspecific.py
+if not defined PY_MISC_NEWS_DIR set PY_MISC_NEWS_DIR=%BUILDDIR%\%1
+if not exist "%PY_MISC_NEWS_DIR%" mkdir "%PY_MISC_NEWS_DIR%"
+if exist ..\Misc\NEWS (
+ echo.Copying Misc\NEWS to %PY_MISC_NEWS_DIR%\NEWS
+ copy ..\Misc\NEWS "%PY_MISC_NEWS_DIR%\NEWS" > nul
+) else if exist ..\Misc\NEWS.D (
+ if defined BLURB (
+ echo.Merging Misc/NEWS with %BLURB%
+ %BLURB% merge -f "%PY_MISC_NEWS_DIR%\NEWS"
+ ) else (
+ echo.No Misc/NEWS file and Blurb is not available.
+ exit /B 1
+ )
+)
+
+if defined PAPER (
+ set SPHINXOPTS=-D latex_elements.papersize=%PAPER% %SPHINXOPTS%
+)
+if "%1" EQU "htmlhelp" (
+ set SPHINXOPTS=-D html_theme_options.body_max_width=none %SPHINXOPTS%
+)
+cmd /S /C "%SPHINXBUILD% %SPHINXOPTS% -b%1 -dbuild\doctrees . "%BUILDDIR%\%1" %2 %3 %4 %5 %6 %7 %8 %9"
+
+if "%1" EQU "htmlhelp" (
+ "%HTMLHELP%" "%BUILDDIR%\htmlhelp\python%DISTVERSION:.=%.hhp"
+ rem hhc.exe seems to always exit with code 1, reset to 0 for less than 2
+ if not errorlevel 2 cmd /C exit /b 0
+)
+
+echo.
+if errorlevel 1 (
+ echo.Build failed (exit code %ERRORLEVEL%^), check for error messages
+ echo.above. Any output will be found in %BUILDDIR%\%1
+) else (
+ echo.Build succeeded. All output should be in %BUILDDIR%\%1
+)
+goto end
+
+:htmlview
+if NOT "%2" EQU "" (
+ echo.Can't specify filenames to build with htmlview target, ignoring.
+)
+cmd /C %this% html
+
+if EXIST "%BUILDDIR%\html\index.html" (
+ echo.Opening "%BUILDDIR%\html\index.html" in the default web browser...
+ start "" "%BUILDDIR%\html\index.html"
+)
+
+goto end
+
+:check
+rem Check the docs and NEWS files with sphinx-lint.
+rem Ignore the tools dir and check that the default role is not used.
+cmd /S /C "%SPHINXLINT% -i tools --enable default-role"
+cmd /S /C "%SPHINXLINT% --enable default-role ..\Misc\NEWS.d\next\ "
+goto end
+
+:serve
+echo.The serve target was removed, use htmlview instead (see bpo-36329)
+goto end
+
+:end
+popd
partial matches when the type matches some of the exceptions in the group.
This means that multiple :keyword:`!except*` clauses can execute,
each handling part of the exception group.
-Each clause executes once and handles an exception group
+Each clause executes at most once and handles an exception group
of all matching exceptions. Each exception in the group is handled by at most
one :keyword:`!except*` clause, the first that matches it. ::
| ValueError: 1
+------------------------------------
- Any remaining exceptions that were not handled by any :keyword:`!except*`
- clause are re-raised at the end, combined into an exception group along with
- all exceptions that were raised from within :keyword:`!except*` clauses.
- An :keyword:`!except*` clause must have a matching type,
- and this type cannot be a subclass of :exc:`BaseExceptionGroup`.
- It is not possible to mix :keyword:`except` and :keyword:`!except*`
- in the same :keyword:`try`.
- :keyword:`break`, :keyword:`continue` and :keyword:`return`
- cannot appear in an :keyword:`!except*` clause.
+Any remaining exceptions that were not handled by any :keyword:`!except*`
+clause are re-raised at the end, combined into an exception group along with
+all exceptions that were raised from within :keyword:`!except*` clauses.
+
+If the raised exception is not an exception group and its type matches
+one of the :keyword:`!except*` clauses, it is caught and wrapped by an
+exception group with an empty message string. ::
+
+ >>> try:
+ ... raise BlockingIOError
+ ... except* BlockingIOError as e:
+ ... print(repr(e))
+ ...
+ ExceptionGroup('', (BlockingIOError()))
+
+An :keyword:`!except*` clause must have a matching type,
+and this type cannot be a subclass of :exc:`BaseExceptionGroup`.
+It is not possible to mix :keyword:`except` and :keyword:`!except*`
+in the same :keyword:`try`.
+:keyword:`break`, :keyword:`continue` and :keyword:`return`
+cannot appear in an :keyword:`!except*` clause.
.. index::
keyword: if
keyword: as
pair: match; case
+ single: as; match statement
single: : (colon); compound statement
.. versionadded:: 3.10
and *__weakref__* for each instance.
+.. _datamodel-note-slots:
+
Notes on using *__slots__*
""""""""""""""""""""""""""
When using a class name in a pattern, positional arguments in the pattern are not
allowed by default, i.e. ``case MyClass(x, y)`` is typically invalid without special
-support in ``MyClass``. To be able to use that kind of patterns, the class needs to
+support in ``MyClass``. To be able to use that kind of pattern, the class needs to
define a *__match_args__* attribute.
.. data:: object.__match_args__
single: , (comma)
Note that tuples are not formed by the parentheses, but rather by use of the
-comma operator. The exception is the empty tuple, for which parentheses *are*
+comma. The exception is the empty tuple, for which parentheses *are*
required --- allowing unparenthesized "nothing" in expressions would cause
ambiguities and allow common typos to pass uncaught.
In particular, ``&`` followed by a symbol, token or parenthesized
group indicates a positive lookahead (i.e., is required to match but
not consumed), while ``!`` indicates a negative lookahead (i.e., is
-required _not_ to match). We use the ``|`` separator to mean PEG's
+required *not* to match). We use the ``|`` separator to mean PEG's
"ordered choice" (written as ``/`` in traditional PEG grammars). See
:pep:`617` for more details on the grammar's syntax.
annotated_assignment_stmt: `augtarget` ":" `expression`
: ["=" (`starred_expression` | `yield_expression`)]
-The difference from normal :ref:`assignment` is that only single target is allowed.
+The difference from normal :ref:`assignment` is that only a single target is allowed.
For simple names as assignment targets, if in class or module scope,
the annotations are evaluated and stored in a special class or module
IDEs.
.. versionchanged:: 3.8
- Now annotated assignments allow same expressions in the right hand side as
- the regular assignments. Previously, some expressions (like un-parenthesized
+ Now annotated assignments allow the same expressions in the right hand side as
+ regular assignments. Previously, some expressions (like un-parenthesized
tuple expressions) caused a syntax error.
as though the clauses had been separated out into individual import
statements.
-The details of the first step, finding and loading modules are described in
+The details of the first step, finding and loading modules, are described in
greater detail in the section on the :ref:`import system <importsystem>`,
which also describes the various types of packages and modules that can
be imported, as well as all the hooks that can be used to customize
blurb
-# sphinx-lint 0.6.2 yields many default role errors due to the new regular
-# expression used for default role detection, so we don't use the version
-# until the errors are fixed.
-sphinx-lint==0.6.4
+sphinx-lint==0.6.7
# The theme used by the documentation is stored separately, so we need
# to install that as well.
from sphinx.errors import NoUri
except ImportError:
from sphinx.environment import NoUri
-from sphinx.locale import translators
+from sphinx.locale import _ as sphinx_gettext
from sphinx.util import status_iterator, logging
from sphinx.util.nodes import split_explicit_title
from sphinx.writers.text import TextWriter, TextTranslator
def run(self):
self.assert_has_content()
pnode = nodes.compound(classes=['impl-detail'])
- label = translators['sphinx'].gettext(self.label_text)
+ label = sphinx_gettext(self.label_text)
content = self.content
add_text = nodes.strong(label, label)
self.state.nested_parse(content, self.content_offset, pnode)
else:
args = []
- label = translators['sphinx'].gettext(self._label[min(2, len(args))])
+ label = sphinx_gettext(self._label[min(2, len(args))])
text = label.format(name="``{}``".format(name),
args=", ".join("``{}``".format(a) for a in args if a))
else:
label = self._removed_label
- label = translators['sphinx'].gettext(label)
+ label = sphinx_gettext(label)
text = label.format(deprecated=self.arguments[0], removed=self.arguments[1])
if len(self.arguments) == 3:
inodes, messages = self.state.inline_text(self.arguments[2],
But using ``/`` (positional only arguments), it is possible since it allows ``name`` as a positional argument and ``'name'`` as a key in the keyword arguments::
- def foo(name, /, **kwds):
- return 'name' in kwds
+ >>> def foo(name, /, **kwds):
+ ... return 'name' in kwds
+ ...
>>> foo(1, **{'name': 2})
True
You might have noticed that methods like ``insert``, ``remove`` or ``sort`` that
only modify the list have no return value printed -- they return the default
-``None``. [1]_ This is a design principle for all mutable data structures in
+``None``. [#]_ This is a design principle for all mutable data structures in
Python.
Another thing you might notice is that not all data can be sorted or
.. rubric:: Footnotes
-.. [1] Other languages may return the mutated object, which allows method
+.. [#] Other languages may return the mutated object, which allows method
chaining, such as ``d->insert("a")->remove("b")->sort();``.
==================================================
There are situations where it is necessary to report several exceptions that
-have occurred. This it often the case in concurrency frameworks, when several
+have occurred. This is often the case in concurrency frameworks, when several
tasks may have failed in parallel, but there are also other use cases where
it is desirable to continue execution and collect multiple errors rather than
raise the first exception.
Rather than having users constantly writing and debugging code to save
complicated data types to files, Python allows you to use the popular data
interchange format called `JSON (JavaScript Object Notation)
-<http://json.org>`_. The standard module called :mod:`json` can take Python
+<https://json.org>`_. The standard module called :mod:`json` can take Python
data hierarchies, and convert them to string representations; this process is
called :dfn:`serializing`. Reconstructing the data from the string representation
is called :dfn:`deserializing`. Between serializing and deserializing, the
.. deprecated:: 3.6
``pyvenv`` was the recommended tool for creating virtual environments for
- Python 3.3 and 3.4, and is `deprecated in Python 3.6
- <https://docs.python.org/dev/whatsnew/3.6.html#id8>`_.
+ Python 3.3 and 3.4, and is
+ :ref:`deprecated in Python 3.6 <whatsnew36-venv>`.
.. versionchanged:: 3.5
The use of ``venv`` is now recommended for creating virtual environments.
environment will be created, according to the given options, at each provided
path.
-Once a virtual environment has been created, it can be "activated" using a
-script in the virtual environment's binary directory. The invocation of the
-script is platform-specific (`<venv>` must be replaced by the path of the
-directory containing the virtual environment):
-
-+-------------+-----------------+-----------------------------------------+
-| Platform | Shell | Command to activate virtual environment |
-+=============+=================+=========================================+
-| POSIX | bash/zsh | $ source <venv>/bin/activate |
-+-------------+-----------------+-----------------------------------------+
-| | fish | $ source <venv>/bin/activate.fish |
-+-------------+-----------------+-----------------------------------------+
-| | csh/tcsh | $ source <venv>/bin/activate.csh |
-+-------------+-----------------+-----------------------------------------+
-| | PowerShell Core | $ <venv>/bin/Activate.ps1 |
-+-------------+-----------------+-----------------------------------------+
-| Windows | cmd.exe | C:\\> <venv>\\Scripts\\activate.bat |
-+-------------+-----------------+-----------------------------------------+
-| | PowerShell | PS C:\\> <venv>\\Scripts\\Activate.ps1 |
-+-------------+-----------------+-----------------------------------------+
-
-When a virtual environment is active, the :envvar:`VIRTUAL_ENV` environment
-variable is set to the path of the virtual environment. This can be used to
-check if one is running inside a virtual environment.
-
-You don't specifically *need* to activate an environment; activation just
-prepends the virtual environment's binary directory to your path, so that
-"python" invokes the virtual environment's Python interpreter and you can run
-installed scripts without having to use their full path. However, all scripts
-installed in a virtual environment should be runnable without activating it,
-and run with the virtual environment's Python automatically.
-
-You can deactivate a virtual environment by typing "deactivate" in your shell.
-The exact mechanism is platform-specific and is an internal implementation
-detail (typically a script or shell function will be used).
-
-.. versionadded:: 3.4
- ``fish`` and ``csh`` activation scripts.
-
-.. versionadded:: 3.8
- PowerShell activation scripts installed under POSIX for PowerShell Core
- support.
not provably i386/32-bit". To request a specific environment, use the new
``-V:<TAG>`` argument with the complete tag.
-
The ``/usr/bin/env`` form of shebang line has one further special property.
Before looking for installed Python interpreters, this form will search the
executable :envvar:`PATH` for a Python executable. This corresponds to the
variable :envvar:`PYLAUNCHER_NO_SEARCH_PATH` may be set (to any value) to skip
this additional search.
+Shebang lines that do not match any of these patterns are treated as **Windows**
+paths that are absolute or relative to the directory containing the script file.
+This is a convenience for Windows-only scripts, such as those generated by an
+installer, since the behavior is not compatible with Unix-style shells.
+These paths may be quoted, and may include multiple arguments, after which the
+path to the script and any additional arguments will be appended.
+
Arguments in shebang lines
--------------------------
of an explanation to start you programming, but many details have been
simplified or ignored. Where should you go to get a more complete picture?
-https://docs.python.org/dev/howto/descriptor.html is a lengthy tutorial introduction to
+The :ref:`descriptorhowto` is a lengthy tutorial introduction to
the descriptor features, written by Guido van Rossum. If my description has
whetted your appetite, go read this tutorial next, because it goes into much
more detail about the new features while still remaining quite easy to read.
During the 2.6 development cycle, Georg Brandl put a lot of effort
into building a new toolchain for processing the documentation. The
resulting package is called Sphinx, and is available from
-http://sphinx-doc.org/.
+https://www.sphinx-doc.org/.
Sphinx concentrates on HTML output, producing attractively styled and
modern HTML; printed output is still supported through conversion to
`Documenting Python <https://devguide.python.org/documenting/>`__
Describes how to write for Python's documentation.
- `Sphinx <http://sphinx-doc.org/>`__
+ `Sphinx <https://www.sphinx-doc.org/>`__
Documentation and code for the Sphinx toolchain.
`Docutils <https://docutils.sourceforge.io>`__
the left to six places. (Contributed by Skip Montanaro; :issue:`1158`.)
* The :mod:`decimal` module was updated to version 1.66 of
- `the General Decimal Specification <http://speleotrove.com/decimal/decarith.html>`__. New features
+ `the General Decimal Specification <https://speleotrove.com/decimal/decarith.html>`__. New features
include some methods for some basic mathematical functions such as
:meth:`exp` and :meth:`log10`::
* The :mod:`json` module now has a C extension to substantially improve
its performance. In addition, the API was modified so that json works
only with :class:`str`, not with :class:`bytes`. That change makes the
- module closely match the `JSON specification <http://json.org/>`_
+ module closely match the `JSON specification <https://json.org/>`_
which is defined in terms of Unicode.
(Contributed by Bob Ippolito and converted to Py3.1 by Antoine Pitrou
New typing features:
* :pep:`604`, Allow writing union types as X | Y
-* :pep:`613`, Explicit Type Aliases
* :pep:`612`, Parameter Specification Variables
+* :pep:`613`, Explicit Type Aliases
+* :pep:`647`, User-Defined Type Guards
Important deprecations, removals or restrictions:
* The ``PY_SSIZE_T_CLEAN`` macro must now be defined to use
:c:func:`PyArg_ParseTuple` and :c:func:`Py_BuildValue` formats which use
``#``: ``es#``, ``et#``, ``s#``, ``u#``, ``y#``, ``z#``, ``U#`` and ``Z#``.
- See :ref:`Parsing arguments and building values
- <arg-parsing>` and the :pep:`353`.
+ See :ref:`arg-parsing` and :pep:`353`.
(Contributed by Victor Stinner in :issue:`40943`.)
* Since :c:func:`Py_REFCNT()` is changed to the inline static function,
:c:func:`Py_GetProgramFullPath`, :c:func:`Py_GetPythonHome` and
:c:func:`Py_GetProgramName` functions now return ``NULL`` if called before
:c:func:`Py_Initialize` (before Python is initialized). Use the new
- :ref:`Python Initialization Configuration API <init-config>` to get the
- :ref:`Python Path Configuration. <init-path-config>`.
+ :ref:`init-config` API to get the :ref:`init-path-config`.
(Contributed by Victor Stinner in :issue:`42260`.)
* :c:func:`PyList_SET_ITEM`, :c:func:`PyTuple_SET_ITEM` and
``picklebufobject.h``, ``pyarena.h``, ``pyctype.h``, ``pydebug.h``,
``pyfpe.h``, and ``pytime.h`` have been moved to the ``Include/cpython``
directory. These files must not be included directly, as they are already
- included in ``Python.h``: :ref:`Include Files <api-includes>`. If they have
+ included in ``Python.h``; see :ref:`api-includes`. If they have
been included directly, consider including ``Python.h`` instead.
(Contributed by Nicholas Sim in :issue:`35134`.)
:Release: |release|
:Date: |today|
+:Editor: Pablo Galindo Salgado
.. Rules for maintenance:
These are primarily intended for internal use,
notably by :class:`~asyncio.TaskGroup`.
+
+.. _whatsnew311-contextlib:
+
contextlib
----------
-Added non parallel-safe :func:`~contextlib.chdir` context manager to change
-the current working directory and then restore it on exit. Simple wrapper
-around :func:`~os.chdir`. (Contributed by Filipe Laíns in :issue:`25625`)
+* Added non parallel-safe :func:`~contextlib.chdir` context manager to change
+ the current working directory and then restore it on exit. Simple wrapper
+ around :func:`~os.chdir`. (Contributed by Filipe Laíns in :issue:`25625`)
+
+
+.. _whatsnew311-dataclasses:
dataclasses
-----------
:class:`dict`, :class:`list` or :class:`set`. (Contributed by Eric V. Smith in
:issue:`44674`.)
+
+.. _whatsnew311-datetime:
+
datetime
--------
* Add :attr:`datetime.UTC`, a convenience alias for
:attr:`datetime.timezone.utc`. (Contributed by Kabir Kwatra in :gh:`91973`.)
+
* :meth:`datetime.date.fromisoformat`, :meth:`datetime.time.fromisoformat` and
:meth:`datetime.datetime.fromisoformat` can now be used to parse most ISO 8601
formats (barring only those that support fractional hours and minutes).
(used by :func:`str`, :func:`format` and :term:`f-string`\s).
* Changed :class:`~enum.IntEnum`, :class:`~enum.IntFlag` and :class:`~enum.StrEnum`
- to now inherit from :class:`ReprEnum`,
+ to now inherit from :class:`~enum.ReprEnum`,
so their :func:`str` output now matches :func:`format`
(both ``str(AnIntEnum.ONE)`` and ``format(AnIntEnum.ONE)`` return ``'1'``,
whereas before ``str(AnIntEnum.ONE)`` returned ``'AnIntEnum.ONE'``.
inverted flags are coerced to their positive equivalent.
+.. _whatsnew311-fcntl:
+
+fcntl
+-----
+
+* On FreeBSD, the :data:`!F_DUP2FD` and :data:`!F_DUP2FD_CLOEXEC` flags respectively
+ are supported, the former equals to ``dup2`` usage while the latter set
+ the ``FD_CLOEXEC`` flag in addition.
+
+
+.. _whatsnew311-fractions:
+
fractions
---------
that an ``isinstance(some_fraction, typing.SupportsInt)`` check passes.
(Contributed by Mark Dickinson in :issue:`44547`.)
+
+.. _whatsnew311-functools:
+
functools
---------
(Contributed by Yurii Karabas in :issue:`46014`.)
+
+.. _whatsnew311-hashlib:
+
hashlib
-------
of files or file-like objects.
(Contributed by Christian Heimes in :gh:`89313`.)
+
+.. _whatsnew311-idle:
+
IDLE and idlelib
----------------
(Contributed by Pablo Galindo in :gh:`88116`.)
+
+.. _whatsnew311-locale:
+
locale
------
(Contributed by Kirill Pinchuk in :gh:`88457`.)
+.. _whatsnew311-math:
+
math
----
(Contributed by Victor Stinner in :issue:`46917`.)
+.. _whatsnew311-operator:
+
operator
--------
(Contributed by Antony Lee in :issue:`44019`.)
+.. _whatsnew311-os:
+
os
--
(Contributed by Dong-hee Na in :issue:`44611`.)
+.. _whatsnew311-pathlib:
+
pathlib
-------
:data:`~os.sep` or :data:`~os.altsep`.
(Contributed by Eisuke Kawasima in :issue:`22276` and :issue:`33392`.)
+
+.. _whatsnew311-re:
+
re
--
``?+``, ``{m,n}+``) are now supported in regular expressions.
(Contributed by Jeffrey C. Jacobs and Serhiy Storchaka in :issue:`433030`.)
+
+.. _whatsnew311-shutil:
+
shutil
------
(Contributed by Serhiy Storchaka in :issue:`46245`.)
+.. _whatsnew311-socket:
+
socket
------
instead of only raising the last error.
(Contributed by Irit Katriel in :issue:`29980`.)
+
+.. _whatsnew311-sqlite3:
+
sqlite3
-------
(Contributed by Ben Kehoe in :gh:`90465`.)
+.. _whatsnew311-sys:
+
sys
---
* :func:`sys.exc_info` now derives the ``type`` and ``traceback`` fields
from the ``value`` (the exception instance), so when an exception is
modified while it is being handled, the changes are reflected in
- the results of subsequent calls to :func:`exc_info`.
+ the results of subsequent calls to :func:`!exc_info`.
(Contributed by Irit Katriel in :issue:`45711`.)
* Add :func:`sys.exception` which returns the active exception instance
(Contributed by Victor Stinner in :gh:`57684`.)
+.. _whatsnew311-sysconfig:
+
sysconfig
---------
(Contributed by Miro Hrončok in :issue:`45413`.)
+.. _whatsnew311-tempfile:
+
+tempfile
+--------
+
+* :class:`~tempfile.SpooledTemporaryFile` objects now fully implement the methods
+ of :class:`io.BufferedIOBase` or :class:`io.TextIOBase`
+ (depending on file mode).
+ This lets them work correctly with APIs that expect file-like objects,
+ such as compression modules.
+ (Contributed by Carey Metcalfe in :gh:`70363`.)
+
+
+.. _whatsnew311-threading:
+
threading
---------
(Contributed by Victor Stinner in :issue:`41710`.)
+.. _whatsnew311-time:
+
time
----
(Contributed by Benjamin Szőke, Dong-hee Na, Eryk Sun and Victor Stinner in :issue:`21302` and :issue:`45429`.)
+.. _whatsnew311-tkinter:
+
+tkinter
+-------
+
+* Added method ``info_patchlevel()`` which returns the exact version of
+ the Tcl library as a named tuple similar to :data:`sys.version_info`.
+ (Contributed by Serhiy Storchaka in :gh:`91827`.)
+
+
+.. _whatsnew311-traceback:
+
traceback
---------
(Contributed by Irit Katriel in :issue:`33809`.)
+.. _whatsnew311-typing:
+
typing
------
to clear all registered overloads of a function.
(Contributed by Jelle Zijlstra in :gh:`89263`.)
-* The :meth:`__init__` method of :class:`~typing.Protocol` subclasses
+* The :meth:`~object.__init__` method of :class:`~typing.Protocol` subclasses
is now preserved. (Contributed by Adrian Garcia Badarasco in :gh:`88970`.)
* The representation of empty tuple types (``Tuple[()]``) is simplified.
by Nikita Sobolev in :gh:`90729`.)
-tkinter
--------
-
-* Added method ``info_patchlevel()`` which returns the exact version of
- the Tcl library as a named tuple similar to :data:`sys.version_info`.
- (Contributed by Serhiy Storchaka in :gh:`91827`.)
-
+.. _whatsnew311-unicodedata:
unicodedata
-----------
-* The Unicode database has been updated to version 14.0.0. (Contributed by Benjamin Peterson in :issue:`45190`).
+* The Unicode database has been updated to version 14.0.0.
+ (Contributed by Benjamin Peterson in :issue:`45190`).
+
+.. _whatsnew311-unittest:
unittest
--------
(Contributed by Serhiy Storchaka in :issue:`45046`.)
+.. _whatsnew311-venv:
+
venv
----
Third party code that also creates new virtual environments should do the same.
(Contributed by Miro Hrončok in :issue:`45413`.)
+
+.. _whatsnew311-warnings:
+
warnings
--------
(Contributed by Miguel Brito in :gh:`88261`.)
-fcntl
------
-
-* On FreeBSD, the :attr:`F_DUP2FD` and :attr:`F_DUP2FD_CLOEXEC` flags respectively
- are supported, the former equals to ``dup2`` usage while the latter set
- the ``FD_CLOEXEC`` flag in addition.
-
-
.. _whatsnew311-optimizations:
Optimizations
CPython bytecode changes
========================
-* The bytecode now contains inline cache entries, which take the form of
- :opcode:`CACHE` instructions. Many opcodes expect to be followed by an exact
- number of caches, and instruct the interpreter to skip over them at runtime.
- Populated caches can look like arbitrary instructions, so great care should be
- taken when reading or modifying raw, adaptive bytecode containing quickened
- data.
+The bytecode now contains inline cache entries,
+which take the form of the newly-added :opcode:`CACHE` instructions.
+Many opcodes expect to be followed by an exact number of caches,
+and instruct the interpreter to skip over them at runtime.
+Populated caches can look like arbitrary instructions,
+so great care should be taken when reading or modifying
+raw, adaptive bytecode containing quickened data.
-* Replaced all numeric ``BINARY_*`` and ``INPLACE_*`` instructions with a single
- :opcode:`BINARY_OP` implementation.
-* Replaced the three call instructions: :opcode:`CALL_FUNCTION`,
- :opcode:`CALL_FUNCTION_KW` and :opcode:`CALL_METHOD` with
- :opcode:`PUSH_NULL`, :opcode:`PRECALL`, :opcode:`CALL`,
- and :opcode:`KW_NAMES`.
- This decouples the argument shifting for methods from the handling of
- keyword arguments and allows better specialization of calls.
+.. _whatsnew311-added-opcodes:
-* Removed ``COPY_DICT_WITHOUT_KEYS`` and ``GEN_START``.
+New opcodes
+-----------
-* :opcode:`MATCH_CLASS` and :opcode:`MATCH_KEYS` no longer push an additional
- boolean value indicating whether the match succeeded or failed. Instead, they
- indicate failure with :const:`None` (where a tuple of extracted values would
- otherwise be).
+* :opcode:`ASYNC_GEN_WRAP`, :opcode:`RETURN_GENERATOR` and :opcode:`SEND`,
+ used in generators and co-routines.
-* Replace several stack manipulation instructions (``DUP_TOP``, ``DUP_TOP_TWO``,
- ``ROT_TWO``, ``ROT_THREE``, ``ROT_FOUR``, and ``ROT_N``) with new
- :opcode:`COPY` and :opcode:`SWAP` instructions.
+* :opcode:`COPY_FREE_VARS`,
+ which avoids needing special caller-side code for closures.
-* Replaced :opcode:`JUMP_IF_NOT_EXC_MATCH` by :opcode:`CHECK_EXC_MATCH` which
- performs the check but does not jump.
+* :opcode:`JUMP_BACKWARD_NO_INTERRUPT`,
+ for use in certain loops where handling interrupts is undesirable.
-* Replaced :opcode:`JUMP_IF_NOT_EG_MATCH` by :opcode:`CHECK_EG_MATCH` which
- performs the check but does not jump.
+* :opcode:`MAKE_CELL`, to create :ref:`cell-objects`.
-* Replaced :opcode:`JUMP_ABSOLUTE` by the relative :opcode:`JUMP_BACKWARD`.
+* :opcode:`CHECK_EG_MATCH` and :opcode:`PREP_RERAISE_STAR`,
+ to handle the :ref:`new exception groups and except* <whatsnew311-pep654>`
+ added in :pep:`654`.
-* Added :opcode:`JUMP_BACKWARD_NO_INTERRUPT`, which is used in certain loops where it
- is undesirable to handle interrupts.
+* :opcode:`PUSH_EXC_INFO`, for use in exception handlers.
-* Replaced :opcode:`POP_JUMP_IF_TRUE` and :opcode:`POP_JUMP_IF_FALSE` by
- the relative :opcode:`POP_JUMP_FORWARD_IF_TRUE`, :opcode:`POP_JUMP_BACKWARD_IF_TRUE`,
- :opcode:`POP_JUMP_FORWARD_IF_FALSE` and :opcode:`POP_JUMP_BACKWARD_IF_FALSE`.
+* :opcode:`RESUME`, a no-op,
+ for internal tracing, debugging and optimization checks.
-* Added :opcode:`POP_JUMP_FORWARD_IF_NOT_NONE`, :opcode:`POP_JUMP_BACKWARD_IF_NOT_NONE`,
- :opcode:`POP_JUMP_FORWARD_IF_NONE` and :opcode:`POP_JUMP_BACKWARD_IF_NONE`
- opcodes to speed up conditional jumps.
-* :opcode:`JUMP_IF_TRUE_OR_POP` and :opcode:`JUMP_IF_FALSE_OR_POP` are now
- relative rather than absolute.
+.. _whatsnew311-replaced-opcodes:
-* :opcode:`RESUME` has been added. It is a no-op. Performs internal tracing,
- debugging and optimization checks.
+Replaced opcodes
+----------------
+
++------------------------------------+-----------------------------------+-----------------------------------------+
+| Replaced Opcode(s) | New Opcode(s) | Notes |
++====================================+===================================+=========================================+
+| | :opcode:`!BINARY_*` | :opcode:`BINARY_OP` | Replaced all numeric binary/in-place |
+| | :opcode:`!INPLACE_*` | | opcodes with a single opcode |
++------------------------------------+-----------------------------------+-----------------------------------------+
+| | :opcode:`!CALL_FUNCTION` | | :opcode:`CALL` | Decouples argument shifting for methods |
+| | :opcode:`!CALL_FUNCTION_KW` | | :opcode:`KW_NAMES` | from handling of keyword arguments; |
+| | :opcode:`!CALL_METHOD` | | :opcode:`PRECALL` | allows better specialization of calls |
+| | | :opcode:`PUSH_NULL` | |
++------------------------------------+-----------------------------------+-----------------------------------------+
+| | :opcode:`!DUP_TOP` | | :opcode:`COPY` | Stack manipulation instructions |
+| | :opcode:`!DUP_TOP_TWO` | | :opcode:`SWAP` | |
+| | :opcode:`!ROT_TWO` | | |
+| | :opcode:`!ROT_THREE` | | |
+| | :opcode:`!ROT_FOUR` | | |
+| | :opcode:`!ROT_N` | | |
++------------------------------------+-----------------------------------+-----------------------------------------+
+| | :opcode:`!JUMP_IF_NOT_EXC_MATCH` | | :opcode:`CHECK_EXC_MATCH` | Now performs check but doesn't jump |
++------------------------------------+-----------------------------------+-----------------------------------------+
+| | :opcode:`!JUMP_ABSOLUTE` | | :opcode:`JUMP_BACKWARD` | See [#bytecode-jump]_; |
+| | :opcode:`!POP_JUMP_IF_FALSE` | | :opcode:`POP_JUMP_BACKWARD_IF_* | ``TRUE``, ``FALSE``, |
+| | :opcode:`!POP_JUMP_IF_TRUE` | <POP_JUMP_BACKWARD_IF_TRUE>` | ``NONE`` and ``NOT_NONE`` variants |
+| | | :opcode:`POP_JUMP_FORWARD_IF_* | for each direction |
+| | <POP_JUMP_FORWARD_IF_TRUE>` | |
++------------------------------------+-----------------------------------+-----------------------------------------+
+| | :opcode:`!SETUP_WITH` | :opcode:`BEFORE_WITH` | :keyword:`with` block setup |
+| | :opcode:`!SETUP_ASYNC_WITH` | | |
++------------------------------------+-----------------------------------+-----------------------------------------+
+
+.. [#bytecode-jump] All jump opcodes are now relative, including the
+ existing :opcode:`JUMP_IF_TRUE_OR_POP` and :opcode:`JUMP_IF_FALSE_OR_POP`.
+ The argument is now an offset from the current instruction
+ rather than an absolute location.
+
+
+.. _whatsnew311-changed-opcodes:
+.. _whatsnew311-removed-opcodes:
+.. _whatsnew311-changed-removed-opcodes:
+
+Changed/removed opcodes
+-----------------------
+
+* Changed :opcode:`MATCH_CLASS` and :opcode:`MATCH_KEYS`
+ to no longer push an additional boolean value to indicate success/failure.
+ Instead, ``None`` is pushed on failure
+ in place of the tuple of extracted values.
+
+* Changed opcodes that work with exceptions to reflect them
+ now being represented as one item on the stack instead of three
+ (see :gh:`89874`).
+
+* Removed :opcode:`!COPY_DICT_WITHOUT_KEYS`, :opcode:`!GEN_START`,
+ :opcode:`!POP_BLOCK`, :opcode:`!SETUP_FINALLY` and :opcode:`!YIELD_FROM`.
.. _whatsnew311-deprecated:
Deprecated C APIs are :ref:`listed separately <whatsnew311-c-api-deprecated>`.
+
+.. _whatsnew311-deprecated-language:
+.. _whatsnew311-deprecated-builtins:
+
+Language/Builtins
+-----------------
+
* Chaining :class:`classmethod` descriptors (introduced in :issue:`19072`)
is now deprecated. It can no longer be used to wrap other descriptors
such as :class:`property`. The core design of this feature was flawed
and caused a number of downstream problems. To "pass-through" a
- :class:`classmethod`, consider using the ``__wrapped__`` attribute
+ :class:`classmethod`, consider using the :attr:`!__wrapped__` attribute
that was added in Python 3.10.
(Contributed by Raymond Hettinger in :gh:`89519`.)
-* Octal escapes in string and bytes literals with value larger than ``0o377`` now
- produce :exc:`DeprecationWarning`.
- In a future Python version they will be a :exc:`SyntaxWarning` and
+* Octal escapes in string and bytes literals with values larger than ``0o377``
+ (255 in decimal) now produce a :exc:`DeprecationWarning`.
+ In a future Python version, they will raise a :exc:`SyntaxWarning` and
eventually a :exc:`SyntaxError`.
(Contributed by Serhiy Storchaka in :gh:`81548`.)
-* The :mod:`lib2to3` package and ``2to3`` tool are now deprecated and may not
- be able to parse Python 3.10 or newer. See the :pep:`617` (New PEG parser for
- CPython). (Contributed by Victor Stinner in :issue:`40360`.)
+* The delegation of :func:`int` to :meth:`~object.__trunc__` is now deprecated.
+ Calling ``int(a)`` when ``type(a)`` implements :meth:`!__trunc__` but not
+ :meth:`~object.__int__` or :meth:`~object.__index__` now raises
+ a :exc:`DeprecationWarning`.
+ (Contributed by Zackery Spytz in :issue:`44977`.)
-* Undocumented modules ``sre_compile``, ``sre_constants`` and ``sre_parse``
- are now deprecated.
- (Contributed by Serhiy Storchaka in :issue:`47152`.)
-* :class:`webbrowser.MacOSX` is deprecated and will be removed in Python 3.13.
- It is untested and undocumented and also not used by webbrowser itself.
- (Contributed by Dong-hee Na in :issue:`42255`.)
+.. _whatsnew311-deprecated-modules:
-* The behavior of returning a value from a :class:`~unittest.TestCase` and
- :class:`~unittest.IsolatedAsyncioTestCase` test methods (other than the
- default ``None`` value), is now deprecated.
+Modules
+-------
-* Deprecated the following :mod:`unittest` functions, scheduled for removal in
- Python 3.13:
+.. _whatsnew311-pep594:
- * :func:`unittest.findTestCases`
- * :func:`unittest.makeSuite`
- * :func:`unittest.getTestCaseNames`
+* :pep:`594` led to the deprecations of the following modules
+ slated for removal in Python 3.13:
- Use :class:`~unittest.TestLoader` method instead:
+ +---------------------+---------------------+---------------------+---------------------+---------------------+
+ | :mod:`aifc` | :mod:`chunk` | :mod:`msilib` | :mod:`pipes` | :mod:`telnetlib` |
+ +---------------------+---------------------+---------------------+---------------------+---------------------+
+ | :mod:`audioop` | :mod:`crypt` | :mod:`nis` | :mod:`sndhdr` | :mod:`uu` |
+ +---------------------+---------------------+---------------------+---------------------+---------------------+
+ | :mod:`cgi` | :mod:`imghdr` | :mod:`nntplib` | :mod:`spwd` | :mod:`xdrlib` |
+ +---------------------+---------------------+---------------------+---------------------+---------------------+
+ | :mod:`cgitb` | :mod:`mailcap` | :mod:`ossaudiodev` | :mod:`sunau` | |
+ +---------------------+---------------------+---------------------+---------------------+---------------------+
- * :meth:`unittest.TestLoader.loadTestsFromModule`
- * :meth:`unittest.TestLoader.loadTestsFromTestCase`
- * :meth:`unittest.TestLoader.getTestCaseNames`
+ (Contributed by Brett Cannon in :issue:`47061` and Victor Stinner in
+ :gh:`68966`.)
- (Contributed by Erlend E. Aasland in :issue:`5846`.)
+* The :mod:`asynchat`, :mod:`asyncore` and :mod:`smtpd` modules have been
+ deprecated since at least Python 3.6. Their documentation and deprecation
+ warnings have now been updated to note they will be removed in Python 3.12.
+ (Contributed by Hugo van Kemenade in :issue:`47022`.)
-* The :meth:`turtle.RawTurtle.settiltangle` is deprecated since Python 3.1,
- it now emits a deprecation warning and will be removed in Python 3.13. Use
- :meth:`turtle.RawTurtle.tiltangle` instead (it was earlier incorrectly marked
- as deprecated, its docstring is now corrected).
- (Contributed by Hugo van Kemenade in :issue:`45837`.)
+* The :mod:`lib2to3` package and :ref:`2to3 <2to3-reference>` tool
+ are now deprecated and may not be able to parse Python 3.10 or newer.
+ See :pep:`617`, introducing the new PEG parser, for details.
+ (Contributed by Victor Stinner in :issue:`40360`.)
-* The delegation of :func:`int` to :meth:`__trunc__` is now deprecated. Calling
- ``int(a)`` when ``type(a)`` implements :meth:`__trunc__` but not
- :meth:`__int__` or :meth:`__index__` now raises a :exc:`DeprecationWarning`.
- (Contributed by Zackery Spytz in :issue:`44977`.)
+* Undocumented modules :mod:`!sre_compile`, :mod:`!sre_constants`
+ and :mod:`!sre_parse` are now deprecated.
+ (Contributed by Serhiy Storchaka in :issue:`47152`.)
+
+
+.. _whatsnew311-deprecated-stdlib:
+
+Standard Library
+----------------
* The following have been deprecated in :mod:`configparser` since Python 3.2.
- Their deprecation warnings have now been updated to note they will removed in
- Python 3.12:
+ Their deprecation warnings have now been updated to note they will be removed
+ in Python 3.12:
- * the :class:`configparser.SafeConfigParser` class
- * the :attr:`configparser.ParsingError.filename` property
+ * the :class:`!configparser.SafeConfigParser` class
+ * the :attr:`!configparser.ParsingError.filename` property
* the :meth:`configparser.RawConfigParser.readfp` method
(Contributed by Hugo van Kemenade in :issue:`45173`.)
-* :class:`configparser.LegacyInterpolation` has been deprecated in the docstring
- since Python 3.2. It now emits a :exc:`DeprecationWarning` and will be removed
+* :class:`!configparser.LegacyInterpolation` has been deprecated in the docstring
+ since Python 3.2, and is not listed in the :mod:`configparser` documentation.
+ It now emits a :exc:`DeprecationWarning` and will be removed
in Python 3.13. Use :class:`configparser.BasicInterpolation` or
:class:`configparser.ExtendedInterpolation` instead.
(Contributed by Hugo van Kemenade in :issue:`46607`.)
+* The older set of :mod:`importlib.resources` functions were deprecated
+ in favor of the replacements added in Python 3.9
+ and will be removed in a future Python version,
+ due to not supporting resources located within package subdirectories:
+
+ * :func:`importlib.resources.contents`
+ * :func:`importlib.resources.is_resource`
+ * :func:`importlib.resources.open_binary`
+ * :func:`importlib.resources.open_text`
+ * :func:`importlib.resources.read_binary`
+ * :func:`importlib.resources.read_text`
+ * :func:`importlib.resources.path`
+
* The :func:`locale.getdefaultlocale` function is deprecated and will be
removed in Python 3.13. Use :func:`locale.setlocale`,
:func:`locale.getpreferredencoding(False) <locale.getpreferredencoding>` and
removed in Python 3.13. Use ``locale.setlocale(locale.LC_ALL, "")`` instead.
(Contributed by Victor Stinner in :gh:`90817`.)
-.. _whatsnew311-pep594:
-
-* :pep:`594` led to the deprecations of the following modules which are
- slated for removal in Python 3.13:
-
- * :mod:`aifc`
- * :mod:`audioop`
- * :mod:`cgi`
- * :mod:`cgitb`
- * :mod:`chunk`
- * :mod:`crypt`
- * :mod:`imghdr`
- * :mod:`mailcap`
- * :mod:`msilib`
- * :mod:`nis`
- * :mod:`nntplib`
- * :mod:`ossaudiodev`
- * :mod:`pipes`
- * :mod:`sndhdr`
- * :mod:`spwd`
- * :mod:`sunau`
- * :mod:`telnetlib`
- * :mod:`uu`
- * :mod:`xdrlib`
-
- (Contributed by Brett Cannon in :issue:`47061` and Victor Stinner in
- :gh:`68966`.)
+* Stricter rules will now be applied for numerical group references
+ and group names in :ref:`regular expressions <re-syntax>`.
+ Only sequences of ASCII digits will now be accepted as a numerical reference,
+ and the group name in :class:`bytes` patterns and replacement strings
+ can only contain ASCII letters, digits and underscores.
+ For now, a deprecation warning is raised for syntax violating these rules.
+ (Contributed by Serhiy Storchaka in :gh:`91760`.)
-* The :mod:`asynchat`, :mod:`asyncore` and :mod:`smtpd` modules have been
- deprecated since at least Python 3.6. Their documentation and deprecation
- warnings have now been updated to note they will removed in Python 3.12.
- (Contributed by Hugo van Kemenade in :issue:`47022`.)
+* In the :mod:`re` module, the :func:`!re.template` function
+ and the corresponding :data:`!re.TEMPLATE` and :data:`!re.T` flags
+ are deprecated, as they were undocumented and lacked an obvious purpose.
+ They will be removed in Python 3.13.
+ (Contributed by Serhiy Storchaka and Miro Hrončok in :gh:`92728`.)
-* More strict rules will be applied now applied for numerical group references
- and group names in regular expressions in future Python versions.
- Only sequence of ASCII digits will be now accepted as a numerical reference.
- The group name in bytes patterns and replacement strings could only
- contain ASCII letters and digits and underscore.
- For now, a deprecation warning is raised for such syntax.
- (Contributed by Serhiy Storchaka in :gh:`91760`.)
+* :func:`turtle.settiltangle` has been deprecated since Python 3.1;
+ it now emits a deprecation warning and will be removed in Python 3.13. Use
+ :func:`turtle.tiltangle` instead (it was earlier incorrectly marked
+ as deprecated, and its docstring is now corrected).
+ (Contributed by Hugo van Kemenade in :issue:`45837`.)
* :class:`typing.Text`, which exists solely to provide compatibility support
between Python 2 and Python 3 code, is now deprecated. Its removal is
wherever possible.
(Contributed by Alex Waygood in :gh:`92332`.)
-* The keyword argument syntax for constructing :data:`~typing.TypedDict` types
+* The keyword argument syntax for constructing :data:`typing.TypedDict` types
is now deprecated. Support will be removed in Python 3.13. (Contributed by
Jingchen Ye in :gh:`90224`.)
-* The :func:`re.template` function and the corresponding :const:`re.TEMPLATE`
- and :const:`re.T` flags are deprecated, as they were undocumented and
- lacked an obvious purpose. They will be removed in Python 3.13.
- (Contributed by Serhiy Storchaka and Miro Hrončok in :gh:`92728`.)
+* :class:`!webbrowser.MacOSX` is deprecated and will be removed in Python 3.13.
+ It is untested, undocumented, and not used by :mod:`webbrowser` itself.
+ (Contributed by Dong-hee Na in :issue:`42255`.)
+
+* The behavior of returning a value from a :class:`~unittest.TestCase` and
+ :class:`~unittest.IsolatedAsyncioTestCase` test methods (other than the
+ default ``None`` value) is now deprecated.
+
+* Deprecated the following not-formally-documented :mod:`unittest` functions,
+ scheduled for removal in Python 3.13:
+
+ * :func:`!unittest.findTestCases`
+ * :func:`!unittest.makeSuite`
+ * :func:`!unittest.getTestCaseNames`
+
+ Use :class:`~unittest.TestLoader` methods instead:
+
+ * :meth:`unittest.TestLoader.loadTestsFromModule`
+ * :meth:`unittest.TestLoader.loadTestsFromTestCase`
+ * :meth:`unittest.TestLoader.getTestCaseNames`
+
+ (Contributed by Erlend E. Aasland in :issue:`5846`.)
.. _whatsnew311-pending-removal:
C APIs pending removal are
:ref:`listed separately <whatsnew311-c-api-pending-removal>`.
-* :class:`pkgutil.ImpImporter`
-* :class:`pkgutil.ImpLoader`
-* :envvar:`PYTHONTHREADDEBUG`
+* The :mod:`asynchat` module
+* The :mod:`asyncore` module
+* The :ref:`entire distutils package <distutils-deprecated>`
+* The :mod:`imp` module
+* The :class:`typing.io <typing.IO>` namespace
+* The :class:`typing.re <typing.Pattern>` namespace
+* :func:`!cgi.log`
* :func:`importlib.find_loader`
-* :func:`importlib.util.module_for_loader`
-* :func:`importlib.util.set_loader_wrapper`
-* :func:`importlib.util.set_package_wrapper`
* :meth:`importlib.abc.Loader.module_repr`
-* :meth:`importlib.abc.Loadermodule_repr`
-* :meth:`importlib.abc.MetaPathFinder.find_module`
* :meth:`importlib.abc.MetaPathFinder.find_module`
* :meth:`importlib.abc.PathEntryFinder.find_loader`
* :meth:`importlib.abc.PathEntryFinder.find_module`
-* :meth:`importlib.machinery.BuiltinImporter.find_module`
-* :meth:`importlib.machinery.BuiltinLoader.module_repr`
-* :meth:`importlib.machinery.FileFinder.find_loader`
-* :meth:`importlib.machinery.FileFinder.find_module`
-* :meth:`importlib.machinery.FrozenImporter.find_module`
-* :meth:`importlib.machinery.FrozenLoader.module_repr`
+* :meth:`!importlib.machinery.BuiltinImporter.find_module`
+* :meth:`!importlib.machinery.BuiltinLoader.module_repr`
+* :meth:`!importlib.machinery.FileFinder.find_loader`
+* :meth:`!importlib.machinery.FileFinder.find_module`
+* :meth:`!importlib.machinery.FrozenImporter.find_module`
+* :meth:`!importlib.machinery.FrozenLoader.module_repr`
* :meth:`importlib.machinery.PathFinder.find_module`
-* :meth:`importlib.machinery.WindowsRegistryFinder.find_module`
+* :meth:`!importlib.machinery.WindowsRegistryFinder.find_module`
+* :func:`importlib.util.module_for_loader`
+* :func:`!importlib.util.set_loader_wrapper`
+* :func:`!importlib.util.set_package_wrapper`
+* :class:`pkgutil.ImpImporter`
+* :class:`pkgutil.ImpLoader`
* :meth:`pathlib.Path.link_to`
-* The entire :ref:`distutils namespace <distutils-deprecated>`
-* :func:`cgi.log`
-* :func:`sqlite3.OptimizedUnicode`
-* :func:`sqlite3.enable_shared_cache`
-
+* :func:`!sqlite3.enable_shared_cache`
+* :func:`!sqlite3.OptimizedUnicode`
+* :envvar:`PYTHONTHREADDEBUG` environment variable
+* The following deprecated aliases in :mod:`unittest`:
+
+ ============================ =============================== ===============
+ Deprecated alias Method Name Deprecated in
+ ============================ =============================== ===============
+ ``failUnless`` :meth:`.assertTrue` 3.1
+ ``failIf`` :meth:`.assertFalse` 3.1
+ ``failUnlessEqual`` :meth:`.assertEqual` 3.1
+ ``failIfEqual`` :meth:`.assertNotEqual` 3.1
+ ``failUnlessAlmostEqual`` :meth:`.assertAlmostEqual` 3.1
+ ``failIfAlmostEqual`` :meth:`.assertNotAlmostEqual` 3.1
+ ``failUnlessRaises`` :meth:`.assertRaises` 3.1
+ ``assert_`` :meth:`.assertTrue` 3.2
+ ``assertEquals`` :meth:`.assertEqual` 3.2
+ ``assertNotEquals`` :meth:`.assertNotEqual` 3.2
+ ``assertAlmostEquals`` :meth:`.assertAlmostEqual` 3.2
+ ``assertNotAlmostEquals`` :meth:`.assertNotAlmostEqual` 3.2
+ ``assertRegexpMatches`` :meth:`.assertRegex` 3.2
+ ``assertRaisesRegexp`` :meth:`.assertRaisesRegex` 3.2
+ ``assertNotRegexpMatches`` :meth:`.assertNotRegex` 3.5
+ ============================ =============================== ===============
.. _whatsnew311-removed:
.. _whatsnew311-python-api-removed:
Removed
=======
-This section lists Python APIs that have been removed in Python 3.12.
+This section lists Python APIs that have been removed in Python 3.11.
Removed C APIs are :ref:`listed separately <whatsnew311-c-api-removed>`.
The :mod:`tkinter.tix` module is now deprecated. :mod:`tkinter` users
should use :mod:`tkinter.ttk` instead.
+.. _whatsnew36-venv:
+
venv
~~~~
There is a new function parameter syntax ``/`` to indicate that some
function parameters must be specified positionally and cannot be used as
keyword arguments. This is the same notation shown by ``help()`` for C
-functions annotated with Larry Hastings' `Argument Clinic
-<https://docs.python.org/3/howto/clinic.html>`_ tool.
+functions annotated with Larry Hastings'
+:ref:`Argument Clinic <howto-clinic>` tool.
In the following example, parameters *a* and *b* are positional-only,
while *c* or *d* can be positional or keyword, and *e* or *f* are
| a='try' ':' NEWLINE !INDENT {
RAISE_INDENTATION_ERROR("expected an indented block after 'try' statement on line %d", a->lineno) }
| 'try' ':' block !('except' | 'finally') { RAISE_SYNTAX_ERROR("expected 'except' or 'finally' block") }
- | 'try' ':' block* ((except_block+ except_star_block) | (except_star_block+ except_block)) block* {
- RAISE_SYNTAX_ERROR("cannot have both 'except' and 'except*' on the same 'try'") }
+ | 'try' ':' block* except_block+ a='except' b='*' expression ['as' NAME] ':' {
+ RAISE_SYNTAX_ERROR_KNOWN_RANGE(a, b, "cannot have both 'except' and 'except*' on the same 'try'") }
+ | 'try' ':' block* except_star_block+ a='except' [expression ['as' NAME]] ':' {
+ RAISE_SYNTAX_ERROR_KNOWN_LOCATION(a, "cannot have both 'except' and 'except*' on the same 'try'") }
invalid_except_stmt:
| 'except' '*'? a=expression ',' expressions ['as' NAME ] ':' {
RAISE_SYNTAX_ERROR_STARTING_FROM(a, "multiple exception types must be parenthesized") }
Actual implementation of these macros may differ depending on the
dynamic analysis tool being used.
- See http://code.google.com/p/data-race-test/ for more information.
+ See https://code.google.com/p/data-race-test/ for more information.
This file supports the following dynamic analysis tools:
- None (DYNAMIC_ANNOTATIONS_ENABLED is not defined or zero).
of the mutex's critical sections individually using the annotations above.
This annotation makes sense only for hybrid race detectors. For pure
happens-before detectors this is a no-op. For more details see
- http://code.google.com/p/data-race-test/wiki/PureHappensBeforeVsHybrid . */
+ https://code.google.com/p/data-race-test/wiki/PureHappensBeforeVsHybrid . */
#define _Py_ANNOTATE_PURE_HAPPENS_BEFORE_MUTEX(mu) \
AnnotateMutexIsUsedAsCondVar(__FILE__, __LINE__, mu)
/*--start constants--*/
#define PY_MAJOR_VERSION 3
#define PY_MINOR_VERSION 11
-#define PY_MICRO_VERSION 0
+#define PY_MICRO_VERSION 1
#define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_FINAL
#define PY_RELEASE_SERIAL 0
/* Version as a string */
-#define PY_VERSION "3.11.0"
+#define PY_VERSION "3.11.1"
/*--end constants--*/
/* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.
==========================
Python was created in the early 1990s by Guido van Rossum at Stichting
-Mathematisch Centrum (CWI, see http://www.cwi.nl) in the Netherlands
+Mathematisch Centrum (CWI, see https://www.cwi.nl) in the Netherlands
as a successor of a language called ABC. Guido remains Python's
principal author, although it includes many contributions from others.
In 1995, Guido continued his work on Python at the Corporation for
-National Research Initiatives (CNRI, see http://www.cnri.reston.va.us)
+National Research Initiatives (CNRI, see https://www.cnri.reston.va.us)
in Reston, Virginia where he released several versions of the
software.
created specifically to own Python-related Intellectual Property.
Zope Corporation was a sponsoring member of the PSF.
-All Python releases are Open Source (see http://www.opensource.org for
+All Python releases are Open Source (see https://opensource.org for
the Open Source Definition). Historically, most, but not all, Python
releases have also been GPL-compatible; the table below summarizes
the various releases.
# arguments, try to parse more single-dash options out
# of the tail of the option string
chars = self.prefix_chars
- if arg_count == 0 and option_string[1] not in chars:
+ if (
+ arg_count == 0
+ and option_string[1] not in chars
+ and explicit_arg != ''
+ ):
action_tuples.append((action, [], option_string))
char = option_string[0]
option_string = char + explicit_arg[0]
def literal_eval(node_or_string):
"""
- Safely evaluate an expression node or a string containing a Python
+ Evaluate an expression node or a string containing only a Python
expression. The string or node provided may only consist of the following
Python literal structures: strings, bytes, numbers, tuples, lists, dicts,
sets, booleans, and None.
+
+ Caution: A complex expression can overflow the C stack and cause a crash.
"""
if isinstance(node_or_string, str):
node_or_string = parse(node_or_string.lstrip(" \t"), mode='eval')
location in a file.
"""
for child in walk(node):
+ # TypeIgnore is a special case where lineno is not an attribute
+ # but rather a field of the node itself.
+ if isinstance(child, TypeIgnore):
+ child.lineno = getattr(child, 'lineno', 0) + n
+ continue
+
if 'lineno' in child._attributes:
child.lineno = getattr(child, 'lineno', 0) + n
if (
def _do_shutdown(self, future):
try:
self._default_executor.shutdown(wait=True)
- self.call_soon_threadsafe(future.set_result, None)
+ if not self.is_closed():
+ self.call_soon_threadsafe(future.set_result, None)
except Exception as ex:
- self.call_soon_threadsafe(future.set_exception, ex)
+ if not self.is_closed():
+ self.call_soon_threadsafe(future.set_exception, ex)
def _check_running(self):
if self.is_running():
self._check_closed()
self._check_running()
self._set_coroutine_origin_tracking(self._debug)
- self._thread_id = threading.get_ident()
old_agen_hooks = sys.get_asyncgen_hooks()
- sys.set_asyncgen_hooks(firstiter=self._asyncgen_firstiter_hook,
- finalizer=self._asyncgen_finalizer_hook)
try:
+ self._thread_id = threading.get_ident()
+ sys.set_asyncgen_hooks(firstiter=self._asyncgen_firstiter_hook,
+ finalizer=self._asyncgen_finalizer_hook)
+
events._set_running_loop(self)
while True:
self._run_once()
if sock is not None:
sock.close()
raise
+ finally:
+ exceptions = my_exceptions = None
async def create_connection(
self, protocol_factory, host=None, port=None,
if sock is None:
exceptions = [exc for sub in exceptions for exc in sub]
- if len(exceptions) == 1:
- raise exceptions[0]
- else:
- # If they all have the same str(), raise one.
- model = str(exceptions[0])
- if all(str(exc) == model for exc in exceptions):
+ try:
+ if len(exceptions) == 1:
raise exceptions[0]
- # Raise a combined exception so the user can see all
- # the various error messages.
- raise OSError('Multiple exceptions: {}'.format(
- ', '.join(str(exc) for exc in exceptions)))
+ else:
+ # If they all have the same str(), raise one.
+ model = str(exceptions[0])
+ if all(str(exc) == model for exc in exceptions):
+ raise exceptions[0]
+ # Raise a combined exception so the user can see all
+ # the various error messages.
+ raise OSError('Multiple exceptions: {}'.format(
+ ', '.join(str(exc) for exc in exceptions)))
+ finally:
+ exceptions = None
else:
if sock is None:
event_list = self._selector.select(timeout)
self._process_events(event_list)
+ # Needed to break cycles when an exception occurs.
+ event_list = None
# Handle 'later' callbacks that are ready.
end_time = self.time() + self._clock_resolution
# object. On Python 3.6, it is required to avoid a ResourceWarning.
self._proc.returncode = returncode
self._call(self._protocol.process_exited)
- self._try_finish()
+ for p in self._pipes.values():
+ if p is not None:
+ p.pipe.close()
- # wake up futures waiting for wait()
- for waiter in self._exit_waiters:
- if not waiter.cancelled():
- waiter.set_result(returncode)
- self._exit_waiters = None
+ self._try_finish()
async def _wait(self):
"""Wait until the process exit and return the process return code.
try:
self._protocol.connection_lost(exc)
finally:
+ # wake up futures waiting for wait()
+ for waiter in self._exit_waiters:
+ if not waiter.cancelled():
+ waiter.set_result(self._returncode)
+ self._exit_waiters = None
self._loop = None
self._proc = None
self._protocol = None
if (self._local._loop is None and
not self._local._set_called and
threading.current_thread() is threading.main_thread()):
+ stacklevel = 2
+ try:
+ f = sys._getframe(1)
+ except AttributeError:
+ pass
+ else:
+ while f:
+ module = f.f_globals.get('__name__')
+ if not (module == 'asyncio' or module.startswith('asyncio.')):
+ break
+ f = f.f_back
+ stacklevel += 1
+ import warnings
+ warnings.warn('There is no current event loop',
+ DeprecationWarning, stacklevel=stacklevel)
self.set_event_loop(self.new_event_loop())
if self._local._loop is None:
def _get_event_loop(stacklevel=3):
+ # This internal method is going away in Python 3.12, left here only for
+ # backwards compatibility with 3.10.0 - 3.10.8 and 3.11.0.
+ # Similarly, this method's C equivalent in _asyncio is going away as well.
+ # See GH-99949 for more details.
current_loop = _get_running_loop()
if current_loop is not None:
return current_loop
- import warnings
- warnings.warn('There is no current event loop',
- DeprecationWarning, stacklevel=stacklevel)
return get_event_loop_policy().get_event_loop()
if dest_loop is None or dest_loop is source_loop:
_set_state(destination, source)
else:
+ if dest_loop.is_closed():
+ return
dest_loop.call_soon_threadsafe(_set_state, destination, source)
destination.add_done_callback(_call_check_cancel)
self._pending_write = 0
self._conn_lost = 0
self._closing = False # Set when close() called.
+ self._called_connection_lost = False
self._eof_written = False
if self._server is not None:
self._server._attach()
self._empty_waiter.set_result(None)
else:
self._empty_waiter.set_exception(exc)
- if self._closing:
+ if self._closing and self._called_connection_lost:
return
self._closing = True
self._conn_lost += 1
self._loop.call_soon(self._call_connection_lost, exc)
def _call_connection_lost(self, exc):
+ if self._called_connection_lost:
+ return
try:
self._protocol.connection_lost(exc)
finally:
if server is not None:
server._detach()
self._server = None
+ self._called_connection_lost = True
def get_write_buffer_size(self):
size = self._pending_write
fut = self.create_future()
self._sock_connect(fut, sock, address)
- return await fut
+ try:
+ return await fut
+ finally:
+ # Needed to break cycles when an exception occurs.
+ fut = None
def _sock_connect(self, fut, sock, address):
fd = sock.fileno()
fut.set_exception(exc)
else:
fut.set_result(None)
+ finally:
+ fut = None
def _sock_write_done(self, fd, fut, handle=None):
if handle is None or not handle.cancelled():
fut.set_exception(exc)
else:
fut.set_result(None)
+ finally:
+ fut = None
async def sock_accept(self, sock):
"""Accept a connection.
protocol's connection_lost() method will (eventually) called
with None as its argument.
"""
- self._closed = True
- self._ssl_protocol._start_shutdown()
+ if not self._closed:
+ self._closed = True
+ self._ssl_protocol._start_shutdown()
+ else:
+ self._ssl_protocol = None
def __del__(self, _warnings=warnings):
if not self._closed:
"""Return the current size of the read buffer."""
return self._ssl_protocol._get_read_buffer_size()
- def get_write_buffer_limits(self):
- """Get the high and low watermarks for write flow control.
- Return a tuple (low, high) where low and high are
- positive number of bytes."""
- return self._ssl_protocol._transport.get_write_buffer_limits()
-
@property
def _protocol_paused(self):
# Required for sendfile fallback pause_writing/resume_writing logic
# Exceptions are heavy objects that can have object
# cycles (bad for GC); let's not keep a reference to
# a bunch of them.
- errors = self._errors
- self._errors = None
-
- me = BaseExceptionGroup('unhandled errors in a TaskGroup', errors)
- raise me from None
+ try:
+ me = BaseExceptionGroup('unhandled errors in a TaskGroup', self._errors)
+ raise me from None
+ finally:
+ self._errors = None
def create_task(self, coro, *, name=None, context=None):
if not self._entered:
return transp
def _child_watcher_callback(self, pid, returncode, transp):
- self.call_soon_threadsafe(transp._process_exited, returncode)
+ # Skip one iteration for callbacks to be executed
+ self.call_soon_threadsafe(self.call_soon, transp._process_exited, returncode)
async def create_unix_connection(
self, protocol_factory, path=None, *,
def _start(self, args, shell, stdin, stdout, stderr, bufsize, **kwargs):
stdin_w = None
- if stdin == subprocess.PIPE:
- # Use a socket pair for stdin, since not all platforms
+ if stdin == subprocess.PIPE and sys.platform.startswith('aix'):
+ # Use a socket pair for stdin on AIX, since it does not
# support selecting read events on the write end of a
# socket (which we use in order to detect closing of the
- # other end). Notably this is needed on AIX, and works
- # just fine on other platforms.
+ # other end).
stdin, stdin_w = socket.socketpair()
try:
self._proc = subprocess.Popen(
self._poll(timeout)
tmp = self._results
self._results = []
- return tmp
+ try:
+ return tmp
+ finally:
+ # Needed to break cycles when an exception occurs.
+ tmp = None
def _result(self, value):
fut = self._loop.create_future()
else:
f.set_result(value)
self._results.append(f)
+ finally:
+ f = None
# Remove unregistered futures
for ov in self._unregistered:
codecs. Output is also codec dependent and will usually be
Unicode as well.
- Underlying encoded files are always opened in binary mode.
+ If encoding is not None, then the
+ underlying encoded files are always opened in binary mode.
The default file mode is 'r', meaning to open the file in read mode.
encoding specifies the encoding which is to be used for the
if symbol != "eval":
source = "pass" # Replace it with a 'pass' statement
- try:
- return compiler(source, filename, symbol)
- except SyntaxError: # Let other compile() errors propagate.
- pass
-
- # Catch syntax warnings after the first compile
- # to emit warnings (SyntaxWarning, DeprecationWarning) at most once.
+ # Disable compiler warnings when checking for incomplete input.
with warnings.catch_warnings():
- warnings.simplefilter("error")
-
+ warnings.simplefilter("ignore", (SyntaxWarning, DeprecationWarning))
try:
- compiler(source + "\n", filename, symbol)
- except SyntaxError as e:
- if "incomplete input" in str(e):
+ compiler(source, filename, symbol)
+ except SyntaxError: # Let other compile() errors propagate.
+ try:
+ compiler(source + "\n", filename, symbol)
return None
- raise
+ except SyntaxError as e:
+ if "incomplete input" in str(e):
+ return None
+ # fallthrough
+
+ return compiler(source, filename, symbol)
+
def _is_syntax_error(err1, err2):
rep1 = repr(err1)
-svn export --force http://svn.red-bean.com/bob/macholib/trunk/macholib/ .\r
+svn export --force http://svn.red-bean.com/bob/macholib/trunk/macholib/ .
x.char = b'a\0b\0'
self.assertEqual(bytes(x), b'a\x00###')
+ def test_gh99275(self):
+ class BrokenStructure(Structure):
+ def __init_subclass__(cls, **kwargs):
+ cls._fields_ = [] # This line will fail, `stgdict` is not ready
+
+ with self.assertRaisesRegex(TypeError,
+ 'ctypes state is not initialized'):
+ class Subclass(BrokenStructure): ...
+
# __set__ and __get__ should raise a TypeError in case their self
# argument is not a ctype instance.
def test___set__(self):
cls, msg = self.get_except(Person, b"Someone", (1, 2))
self.assertEqual(cls, RuntimeError)
self.assertEqual(msg,
- "(Phone) <class 'TypeError'>: "
+ "(Phone) TypeError: "
"expected bytes, int found")
cls, msg = self.get_except(Person, b"Someone", (b"a", b"b", b"c"))
self.assertEqual(cls, RuntimeError)
self.assertEqual(msg,
- "(Phone) <class 'TypeError'>: too many initializers")
+ "(Phone) TypeError: too many initializers")
def test_huge_field_name(self):
# issue12881: segfault with large structure field names
def _create_fn(name, args, body, *, globals=None, locals=None,
return_type=MISSING):
- # Note that we mutate locals when exec() is called. Caller
- # beware! The only callers are internal to this module, so no
+ # Note that we may mutate locals. Callers beware!
+ # The only callers are internal to this module, so no
# worries about external callers.
if locals is None:
locals = {}
- if 'BUILTINS' not in locals:
- locals['BUILTINS'] = builtins
return_annotation = ''
if return_type is not MISSING:
locals['_return_type'] = return_type
# self_name is what "self" is called in this function: don't
# hard-code "self", since that might be a field name.
if frozen:
- return f'BUILTINS.object.__setattr__({self_name},{name!r},{value})'
+ return f'__dataclass_builtins_object__.__setattr__({self_name},{name!r},{value})'
return f'{self_name}.{name}={value}'
locals.update({
'MISSING': MISSING,
'_HAS_DEFAULT_FACTORY': _HAS_DEFAULT_FACTORY,
+ '__dataclass_builtins_object__': object,
})
body_lines = []
self._day, self._year)
def strftime(self, fmt):
- "Format using strftime()."
+ """
+ Format using strftime().
+
+ Example: "%d/%m/%Y, %H:%M:%S"
+ """
return _wrap_strftime(self, fmt, self.timetuple())
def __format__(self, fmt):
self.assertIsInstance(cvars, dict)
self.assertTrue(cvars)
+ @unittest.skipIf(is_wasi, "Incompatible with WASI mapdir and OOT builds")
def test_srcdir(self):
# See Issues #15322, #15364.
srcdir = sysconfig.get_config_var('srcdir')
# Check bidi
RandAL = [stringprep.in_table_d1(x) for x in label]
- for c in RandAL:
- if c:
- # There is a RandAL char in the string. Must perform further
- # tests:
- # 1) The characters in section 5.8 MUST be prohibited.
- # This is table C.8, which was already checked
- # 2) If a string contains any RandALCat character, the string
- # MUST NOT contain any LCat character.
- if any(stringprep.in_table_d2(x) for x in label):
- raise UnicodeError("Violation of BIDI requirement 2")
-
- # 3) If a string contains any RandALCat character, a
- # RandALCat character MUST be the first character of the
- # string, and a RandALCat character MUST be the last
- # character of the string.
- if not RandAL[0] or not RandAL[-1]:
- raise UnicodeError("Violation of BIDI requirement 3")
+ if any(RandAL):
+ # There is a RandAL char in the string. Must perform further
+ # tests:
+ # 1) The characters in section 5.8 MUST be prohibited.
+ # This is table C.8, which was already checked
+ # 2) If a string contains any RandALCat character, the string
+ # MUST NOT contain any LCat character.
+ if any(stringprep.in_table_d2(x) for x in label):
+ raise UnicodeError("Violation of BIDI requirement 2")
+ # 3) If a string contains any RandALCat character, a
+ # RandALCat character MUST be the first character of the
+ # string, and a RandALCat character MUST be the last
+ # character of the string.
+ if not RandAL[0] or not RandAL[-1]:
+ raise UnicodeError("Violation of BIDI requirement 3")
return label
__all__ = ["version", "bootstrap"]
_PACKAGE_NAMES = ('setuptools', 'pip')
_SETUPTOOLS_VERSION = "65.5.0"
-_PIP_VERSION = "22.3"
+_PIP_VERSION = "22.3.1"
_PROJECTS = [
("setuptools", _SETUPTOOLS_VERSION, "py3"),
("pip", _PIP_VERSION, "py3"),
class nonmember(object):
"""
- Protects item from becaming an Enum member during class creation.
+ Protects item from becoming an Enum member during class creation.
"""
def __init__(self, value):
self.value = value
class member(object):
"""
- Forces item to became an Enum member during class creation.
+ Forces item to become an Enum member during class creation.
"""
def __init__(self, value):
self.value = value
setattr(obj, '__module__', '<unknown>')
def _iter_bits_lsb(num):
- # num must be an integer
+ # num must be a positive integer
+ original = num
if isinstance(num, Enum):
num = num.value
+ if num < 0:
+ raise ValueError('%r is not a positive integer' % original)
while num:
b = num & (~num + 1)
yield b
"""
Instances are replaced with an appropriate value in Enum class suites.
"""
- value = _auto_null
+ def __init__(self, value=_auto_null):
+ self.value = value
def __repr__(self):
return "auto(%r)" % self.value
value = value.value
elif _is_descriptor(value):
pass
- # TODO: uncomment next three lines in 3.12
+ # TODO: uncomment next three lines in 3.13
# elif _is_internal_class(self._cls_name, value):
# # do nothing, name will be a normal attribute
# pass
elif isinstance(value, member):
# unwrap value here -- it will become a member
value = value.value
+ non_auto_store = True
+ single = False
if isinstance(value, auto):
- if value.value == _auto_null:
- value.value = self._generate_next_value(
- key, 1, len(self._member_names), self._last_values[:],
- )
- self._auto_called = True
- value = value.value
+ single = True
+ value = (value, )
+ if isinstance(value, tuple):
+ auto_valued = []
+ for v in value:
+ if isinstance(v, auto):
+ non_auto_store = False
+ if v.value == _auto_null:
+ v.value = self._generate_next_value(
+ key, 1, len(self._member_names), self._last_values[:],
+ )
+ self._auto_called = True
+ v = v.value
+ self._last_values.append(v)
+ auto_valued.append(v)
+ if single:
+ value = auto_valued[0]
+ else:
+ value = tuple(auto_valued)
self._member_names[key] = None
- self._last_values.append(value)
+ if non_auto_store:
+ self._last_values.append(value)
super().__setitem__(key, value)
def update(self, members, **more_members):
if name in member_names:
# not an alias
continue
+ if alias.value < 0:
+ # negative numbers are not checked
+ continue
values = list(_iter_bits_lsb(alias.value))
missed = [v for v in values if v not in member_values]
if missed:
This class differs from CookieJar only in the format it uses to save and
load cookies to and from a file. This class uses the Mozilla/Netscape
- `cookies.txt' format. lynx uses this file format, too.
+ `cookies.txt' format. curl and lynx use this file format, too.
Don't expect cookies saved while the browser is running to be noticed by
the browser (in fact, Mozilla on unix will overwrite your saved cookies if
import html
import http.client
import io
+import itertools
import mimetypes
import os
import posixpath
self.log_message(format, *args)
+ # https://en.wikipedia.org/wiki/List_of_Unicode_characters#Control_codes
+ _control_char_table = str.maketrans(
+ {c: fr'\x{c:02x}' for c in itertools.chain(range(0x20), range(0x7f,0xa0))})
+ _control_char_table[ord('\\')] = r'\\'
+
def log_message(self, format, *args):
"""Log an arbitrary message.
The client ip and current date/time are prefixed to
every message.
+ Unicode control characters are replaced with escaped hex
+ before writing the output to stderr.
+
"""
+ message = format % args
sys.stderr.write("%s - - [%s] %s\n" %
(self.address_string(),
self.log_date_time_string(),
- format%args))
+ message.translate(self._control_char_table)))
def version_string(self):
"""Return the server software version string."""
=========================
+gh-97527: Fix a bug in the previous bugfix that caused IDLE to not
+start when run with 3.10.8, 3.12.0a1, and at least Microsoft Python
+3.10.2288.0 installed without the Lib/test package. 3.11.0 was never
+affected.
+
gh-65802: Document handling of extensions in Save As dialogs.
gh-95191: Include prompts when saving Shell (interactive input/output).
return f'Key-{key}'
-class GetKeysDialog(Toplevel):
+class GetKeysFrame(Frame):
# Dialog title for invalid key sequence
keyerror_title = 'Key Sequence Error'
- def __init__(self, parent, title, action, current_key_sequences,
- *, _htest=False, _utest=False):
+ def __init__(self, parent, action, current_key_sequences):
"""
parent - parent of this dialog
- title - string which is the title of the popup dialog
- action - string, the name of the virtual event these keys will be
+ action - the name of the virtual event these keys will be
mapped to
- current_key_sequences - list, a list of all key sequence lists
+ current_key_sequences - a list of all key sequence lists
currently mapped to virtual events, for overlap checking
- _htest - bool, change box location when running htest
- _utest - bool, do not wait when running unittest
"""
- Toplevel.__init__(self, parent)
- self.withdraw() # Hide while setting geometry.
- self.configure(borderwidth=5)
- self.resizable(height=False, width=False)
- self.title(title)
- self.transient(parent)
- _setup_dialog(self)
- self.grab_set()
- self.protocol("WM_DELETE_WINDOW", self.cancel)
+ super().__init__(parent)
+ self['borderwidth'] = 2
+ self['relief'] = 'sunken'
self.parent = parent
self.action = action
self.current_key_sequences = current_key_sequences
self.modifier_vars.append(variable)
self.advanced = False
self.create_widgets()
- self.update_idletasks()
- self.geometry(
- "+%d+%d" % (
- parent.winfo_rootx() +
- (parent.winfo_width()/2 - self.winfo_reqwidth()/2),
- parent.winfo_rooty() +
- ((parent.winfo_height()/2 - self.winfo_reqheight()/2)
- if not _htest else 150)
- ) ) # Center dialog over parent (or below htest box).
- if not _utest:
- self.deiconify() # Geometry set, unhide.
- self.wait_window()
def showerror(self, *args, **kwargs):
# Make testing easier. Replace in #30751.
messagebox.showerror(*args, **kwargs)
def create_widgets(self):
- self.frame = frame = Frame(self, borderwidth=2, relief='sunken')
- frame.pack(side='top', expand=True, fill='both')
-
- frame_buttons = Frame(self)
- frame_buttons.pack(side='bottom', fill='x')
-
- self.button_ok = Button(frame_buttons, text='OK',
- width=8, command=self.ok)
- self.button_ok.grid(row=0, column=0, padx=5, pady=5)
- self.button_cancel = Button(frame_buttons, text='Cancel',
- width=8, command=self.cancel)
- self.button_cancel.grid(row=0, column=1, padx=5, pady=5)
-
# Basic entry key sequence.
- self.frame_keyseq_basic = Frame(frame, name='keyseq_basic')
+ self.frame_keyseq_basic = Frame(self, name='keyseq_basic')
self.frame_keyseq_basic.grid(row=0, column=0, sticky='nsew',
padx=5, pady=5)
basic_title = Label(self.frame_keyseq_basic,
basic_keys.pack(ipadx=5, ipady=5, fill='x')
# Basic entry controls.
- self.frame_controls_basic = Frame(frame)
+ self.frame_controls_basic = Frame(self)
self.frame_controls_basic.grid(row=1, column=0, sticky='nsew', padx=5)
# Basic entry modifiers.
self.button_clear.grid(row=2, column=0, columnspan=4)
# Advanced entry key sequence.
- self.frame_keyseq_advanced = Frame(frame, name='keyseq_advanced')
+ self.frame_keyseq_advanced = Frame(self, name='keyseq_advanced')
self.frame_keyseq_advanced.grid(row=0, column=0, sticky='nsew',
padx=5, pady=5)
advanced_title = Label(self.frame_keyseq_advanced, justify='left',
self.advanced_keys.pack(fill='x')
# Advanced entry help text.
- self.frame_help_advanced = Frame(frame)
+ self.frame_help_advanced = Frame(self)
self.frame_help_advanced.grid(row=1, column=0, sticky='nsew', padx=5)
help_advanced = Label(self.frame_help_advanced, justify='left',
text="Key bindings are specified using Tkinter keysyms as\n"+
help_advanced.grid(row=0, column=0, sticky='nsew')
# Switch between basic and advanced.
- self.button_level = Button(frame, command=self.toggle_level,
+ self.button_level = Button(self, command=self.toggle_level,
text='<< Basic Key Binding Entry')
self.button_level.grid(row=2, column=0, stick='ew', padx=5, pady=5)
self.toggle_level()
variable.set('')
self.key_string.set('')
- def ok(self, event=None):
+ def ok(self):
+ self.result = ''
keys = self.key_string.get().strip()
if not keys:
self.showerror(title=self.keyerror_title, parent=self,
return
if (self.advanced or self.keys_ok(keys)) and self.bind_ok(keys):
self.result = keys
- self.grab_release()
- self.destroy()
-
- def cancel(self, event=None):
- self.result = ''
- self.grab_release()
- self.destroy()
+ return
def keys_ok(self, keys):
"""Validity check on user's 'basic' keybinding selection.
return True
+class GetKeysWindow(Toplevel):
+
+ def __init__(self, parent, title, action, current_key_sequences,
+ *, _htest=False, _utest=False):
+ """
+ parent - parent of this dialog
+ title - string which is the title of the popup dialog
+ action - string, the name of the virtual event these keys will be
+ mapped to
+ current_key_sequences - list, a list of all key sequence lists
+ currently mapped to virtual events, for overlap checking
+ _htest - bool, change box location when running htest
+ _utest - bool, do not wait when running unittest
+ """
+ super().__init__(parent)
+ self.withdraw() # Hide while setting geometry.
+ self['borderwidth'] = 5
+ self.resizable(height=False, width=False)
+ # Needed for winfo_reqwidth().
+ self.update_idletasks()
+ # Center dialog over parent (or below htest box).
+ x = (parent.winfo_rootx() +
+ (parent.winfo_width()//2 - self.winfo_reqwidth()//2))
+ y = (parent.winfo_rooty() +
+ ((parent.winfo_height()//2 - self.winfo_reqheight()//2)
+ if not _htest else 150))
+ self.geometry(f"+{x}+{y}")
+
+ self.title(title)
+ self.frame = frame = GetKeysFrame(self, action, current_key_sequences)
+ self.protocol("WM_DELETE_WINDOW", self.cancel)
+ frame_buttons = Frame(self)
+ self.button_ok = Button(frame_buttons, text='OK',
+ width=8, command=self.ok)
+ self.button_cancel = Button(frame_buttons, text='Cancel',
+ width=8, command=self.cancel)
+ self.button_ok.grid(row=0, column=0, padx=5, pady=5)
+ self.button_cancel.grid(row=0, column=1, padx=5, pady=5)
+ frame.pack(side='top', expand=True, fill='both')
+ frame_buttons.pack(side='bottom', fill='x')
+
+ self.transient(parent)
+ _setup_dialog(self)
+ self.grab_set()
+ if not _utest:
+ self.deiconify() # Geometry set, unhide.
+ self.wait_window()
+
+ @property
+ def result(self):
+ return self.frame.result
+
+ @result.setter
+ def result(self, value):
+ self.frame.result = value
+
+ def ok(self, event=None):
+ self.frame.ok()
+ self.grab_release()
+ self.destroy()
+
+ def cancel(self, event=None):
+ self.result = ''
+ self.grab_release()
+ self.destroy()
+
+
if __name__ == '__main__':
from unittest import main
main('idlelib.idle_test.test_config_key', verbosity=2, exit=False)
from tkinter import messagebox
from idlelib.config import idleConf, ConfigChanges
-from idlelib.config_key import GetKeysDialog
+from idlelib.config_key import GetKeysWindow
from idlelib.dynoption import DynOptionMenu
from idlelib import macosx
from idlelib.query import SectionName, HelpSource
for event in key_set_changes:
current_bindings[event] = key_set_changes[event].split()
current_key_sequences = list(current_bindings.values())
- new_keys = GetKeysDialog(self, 'Get New Keys', bind_name,
+ new_keys = GetKeysWindow(self, 'Get New Keys', bind_name,
current_key_sequences).result
if new_keys:
if self.keyset_source.get(): # Current key set is a built-in.
-@echo off\r
-rem Start IDLE using the appropriate Python interpreter\r
-set CURRDIR=%~dp0\r
-start "IDLE" "%CURRDIR%..\..\pythonw.exe" "%CURRDIR%idle.pyw" %1 %2 %3 %4 %5 %6 %7 %8 %9\r
+@echo off
+rem Start IDLE using the appropriate Python interpreter
+set CURRDIR=%~dp0
+start "IDLE" "%CURRDIR%..\..\pythonw.exe" "%CURRDIR%idle.pyw" %1 %2 %3 %4 %5 %6 %7 %8 %9
from idlelib.idle_test.mock_idle import Func
from idlelib.idle_test.mock_tk import Mbox_func
-gkd = config_key.GetKeysDialog
-
class ValidationTest(unittest.TestCase):
"Test validation methods: ok, keys_ok, bind_ok."
- class Validator(gkd):
+ class Validator(config_key.GetKeysFrame):
def __init__(self, *args, **kwargs):
- config_key.GetKeysDialog.__init__(self, *args, **kwargs)
+ super().__init__(*args, **kwargs)
class list_keys_final:
get = Func()
self.list_keys_final = list_keys_final
cls.root = Tk()
cls.root.withdraw()
keylist = [['<Key-F12>'], ['<Control-Key-x>', '<Control-Key-X>']]
- cls.dialog = cls.Validator(
- cls.root, 'Title', '<<Test>>', keylist, _utest=True)
+ cls.dialog = cls.Validator(cls.root, '<<Test>>', keylist)
@classmethod
def tearDownClass(cls):
- cls.dialog.cancel()
+ del cls.dialog
cls.root.update_idletasks()
cls.root.destroy()
- del cls.dialog, cls.root
+ del cls.root
def setUp(self):
self.dialog.showerror.message = ''
requires('gui')
cls.root = Tk()
cls.root.withdraw()
- cls.dialog = gkd(cls.root, 'Title', '<<Test>>', [], _utest=True)
+ cls.dialog = config_key.GetKeysFrame(cls.root, '<<Test>>', [])
@classmethod
def tearDownClass(cls):
- cls.dialog.cancel()
+ del cls.dialog
cls.root.update_idletasks()
cls.root.destroy()
- del cls.dialog, cls.root
+ del cls.root
def test_toggle_level(self):
dialog = self.dialog
this can be used to check whether a frame is above or
below another one.
"""
- for index, child in enumerate(dialog.frame.winfo_children()):
+ for index, child in enumerate(dialog.winfo_children()):
if child._name == 'keyseq_basic':
basic = index
if child._name == 'keyseq_advanced':
class KeySelectionTest(unittest.TestCase):
"Test selecting key on Basic frames."
- class Basic(gkd):
+ class Basic(config_key.GetKeysFrame):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
class list_keys_final:
requires('gui')
cls.root = Tk()
cls.root.withdraw()
- cls.dialog = cls.Basic(cls.root, 'Title', '<<Test>>', [], _utest=True)
+ cls.dialog = cls.Basic(cls.root, '<<Test>>', [])
@classmethod
def tearDownClass(cls):
- cls.dialog.cancel()
+ del cls.dialog
cls.root.update_idletasks()
cls.root.destroy()
- del cls.dialog, cls.root
+ del cls.root
def setUp(self):
self.dialog.clear_key_seq()
dialog.modifier_checkbuttons['foo'].invoke()
eq(gm(), ['BAZ'])
- @mock.patch.object(gkd, 'get_modifiers')
+ @mock.patch.object(config_key.GetKeysFrame, 'get_modifiers')
def test_build_key_string(self, mock_modifiers):
dialog = self.dialog
key = dialog.list_keys_final
dialog.build_key_string()
eq(string(), '<mymod-test>')
- @mock.patch.object(gkd, 'get_modifiers')
+ @mock.patch.object(config_key.GetKeysFrame, 'get_modifiers')
def test_final_key_selected(self, mock_modifiers):
dialog = self.dialog
key = dialog.list_keys_final
eq(string(), '<Shift-Key-braceleft>')
-class CancelTest(unittest.TestCase):
+class CancelWindowTest(unittest.TestCase):
"Simulate user clicking [Cancel] button."
@classmethod
requires('gui')
cls.root = Tk()
cls.root.withdraw()
- cls.dialog = gkd(cls.root, 'Title', '<<Test>>', [], _utest=True)
+ cls.dialog = config_key.GetKeysWindow(
+ cls.root, 'Title', '<<Test>>', [], _utest=True)
@classmethod
def tearDownClass(cls):
cls.dialog.cancel()
+ del cls.dialog
cls.root.update_idletasks()
cls.root.destroy()
- del cls.dialog, cls.root
+ del cls.root
- def test_cancel(self):
+ @mock.patch.object(config_key.GetKeysFrame, 'ok')
+ def test_cancel(self, mock_frame_ok):
self.assertEqual(self.dialog.winfo_class(), 'Toplevel')
self.dialog.button_cancel.invoke()
with self.assertRaises(TclError):
self.dialog.winfo_class()
self.assertEqual(self.dialog.result, '')
+ mock_frame_ok.assert_not_called()
+
+
+class OKWindowTest(unittest.TestCase):
+ "Simulate user clicking [OK] button."
+
+ @classmethod
+ def setUpClass(cls):
+ requires('gui')
+ cls.root = Tk()
+ cls.root.withdraw()
+ cls.dialog = config_key.GetKeysWindow(
+ cls.root, 'Title', '<<Test>>', [], _utest=True)
+
+ @classmethod
+ def tearDownClass(cls):
+ cls.dialog.cancel()
+ del cls.dialog
+ cls.root.update_idletasks()
+ cls.root.destroy()
+ del cls.root
+
+ @mock.patch.object(config_key.GetKeysFrame, 'ok')
+ def test_ok(self, mock_frame_ok):
+ self.assertEqual(self.dialog.winfo_class(), 'Toplevel')
+ self.dialog.button_ok.invoke()
+ with self.assertRaises(TclError):
+ self.dialog.winfo_class()
+ mock_frame_ok.assert_called()
+
+
+class WindowResultTest(unittest.TestCase):
+ "Test window result get and set."
+
+ @classmethod
+ def setUpClass(cls):
+ requires('gui')
+ cls.root = Tk()
+ cls.root.withdraw()
+ cls.dialog = config_key.GetKeysWindow(
+ cls.root, 'Title', '<<Test>>', [], _utest=True)
+
+ @classmethod
+ def tearDownClass(cls):
+ cls.dialog.cancel()
+ del cls.dialog
+ cls.root.update_idletasks()
+ cls.root.destroy()
+ del cls.root
+
+ def test_result(self):
+ dialog = self.dialog
+ eq = self.assertEqual
+
+ dialog.result = ''
+ eq(dialog.result, '')
+ eq(dialog.frame.result,'')
+
+ dialog.result = 'bar'
+ eq(dialog.result,'bar')
+ eq(dialog.frame.result,'bar')
+
+ dialog.frame.result = 'foo'
+ eq(dialog.result, 'foo')
+ eq(dialog.frame.result,'foo')
class HelperTest(unittest.TestCase):
def test_get_new_keys(self):
eq = self.assertEqual
d = self.page
- orig_getkeysdialog = configdialog.GetKeysDialog
- gkd = configdialog.GetKeysDialog = Func(return_self=True)
+ orig_getkeysdialog = configdialog.GetKeysWindow
+ gkd = configdialog.GetKeysWindow = Func(return_self=True)
gnkn = d.get_new_keys_name = Func()
d.button_new_keys.state(('!disabled',))
eq(d.keybinding.get(), '<Key-p>')
del d.get_new_keys_name
- configdialog.GetKeysDialog = orig_getkeysdialog
+ configdialog.GetKeysWindow = orig_getkeysdialog
def test_get_new_keys_name(self):
orig_sectionname = configdialog.SectionName
from test.support import requires
from _tkinter import TclError
-class TextTest(object):
+class TextTest:
"Define items common to both sets of tests."
hw = 'hello\nworld' # Several tests insert this after initialization.
}
code_sample = """\
-class C1():
+class C1:
# Class comment.
def __init__(self, a, b):
self.a = a
_tk_type = None
def _init_tk_type():
- """
- Initializes OS X Tk variant values for
- isAquaTk(), isCarbonTk(), isCocoaTk(), and isXQuartz().
+ """ Initialize _tk_type for isXyzTk functions.
+
+ This function is only called once, when _tk_type is still None.
"""
global _tk_type
if platform == 'darwin':
+
+ # When running IDLE, GUI is present, test/* may not be.
+ # When running tests, test/* is present, GUI may not be.
+ # If not, guess most common. Does not matter for testing.
+ from idlelib.__init__ import testing
+ if testing:
+ from test.support import requires, ResourceDenied
+ try:
+ requires('gui')
+ except ResourceDenied:
+ _tk_type = "cocoa"
+ return
+
root = tkinter.Tk()
ws = root.tk.call('tk', 'windowingsystem')
if 'x11' in ws:
root.destroy()
else:
_tk_type = "other"
+ return
def isAquaTk():
"""
following the attr, and following any extras.
"""
+ name: str
+ value: str
+ group: str
+
dist: Optional['Distribution'] = None
def __init__(self, name, value, group):
"""
@classmethod
- def from_name(cls, name):
+ def from_name(cls, name: str):
"""Return the Distribution for the given package name.
:param name: The name of the distribution package to search for.
package, if found.
:raises PackageNotFoundError: When the named package's distribution
metadata cannot be found.
+ :raises ValueError: When an invalid value is supplied for name.
"""
- for resolver in cls._discover_resolvers():
- dists = resolver(DistributionFinder.Context(name=name))
- dist = next(iter(dists), None)
- if dist is not None:
- return dist
- else:
+ if not name:
+ raise ValueError("A distribution name is required.")
+ try:
+ return next(cls.discover(name=name))
+ except StopIteration:
raise PackageNotFoundError(name)
@classmethod
normalized name from the file system path.
"""
stem = os.path.basename(str(self._path))
- return self._name_from_stem(stem) or super()._normalized_name
+ return (
+ pass_none(Prepared.normalize)(self._name_from_stem(stem))
+ or super()._normalized_name
+ )
- def _name_from_stem(self, stem):
- name, ext = os.path.splitext(stem)
+ @staticmethod
+ def _name_from_stem(stem):
+ """
+ >>> PathDistribution._name_from_stem('foo-3.0.egg-info')
+ 'foo'
+ >>> PathDistribution._name_from_stem('CherryPy-3.0.dist-info')
+ 'CherryPy'
+ >>> PathDistribution._name_from_stem('face.egg-info')
+ 'face'
+ >>> PathDistribution._name_from_stem('foo.bar')
+ """
+ filename, ext = os.path.splitext(stem)
if ext not in ('.dist-info', '.egg-info'):
return
- name, sep, rest = stem.partition('-')
+ name, sep, rest = filename.partition('-')
return name
return distribution(distribution_name).version
+_unique = functools.partial(
+ unique_everseen,
+ key=operator.attrgetter('_normalized_name'),
+)
+"""
+Wrapper for ``distributions`` to return unique distributions by name.
+"""
+
+
def entry_points(**params) -> Union[EntryPoints, SelectableGroups]:
"""Return EntryPoint objects for all installed packages.
:return: EntryPoints or SelectableGroups for all installed packages.
"""
- norm_name = operator.attrgetter('_normalized_name')
- unique = functools.partial(unique_everseen, key=norm_name)
eps = itertools.chain.from_iterable(
- dist.entry_points for dist in unique(distributions())
+ dist.entry_points for dist in _unique(distributions())
)
return SelectableGroups.load(eps).select(**params)
def formatannotation(annotation, base_module=None):
if getattr(annotation, '__module__', None) == 'typing':
- return repr(annotation).replace('typing.', '')
+ def repl(match):
+ text = match.group()
+ return text.removeprefix('typing.')
+ return re.sub(r'[\w\.]+', repl, repr(annotation))
if isinstance(annotation, types.GenericAlias):
return str(annotation)
if isinstance(annotation, type):
# Was this function wrapped by a decorator?
if follow_wrapper_chains:
- obj = unwrap(obj, stop=(lambda f: hasattr(f, "__signature__")))
+ # Unwrap until we find an explicit signature or a MethodType (which will be
+ # handled explicitly below).
+ obj = unwrap(obj, stop=(lambda f: hasattr(f, "__signature__")
+ or isinstance(f, types.MethodType)))
if isinstance(obj, types.MethodType):
# If the unwrapped object is a *method*, we might want to
# skip its first parameter (self).
@property
def is_private(self):
- """Test if this address is allocated for private networks.
+ """Test if this network belongs to a private range.
Returns:
- A boolean, True if the address is reserved per
+ A boolean, True if the network is reserved per
iana-ipv4-special-registry or iana-ipv6-special-registry.
"""
- return (self.network_address.is_private and
- self.broadcast_address.is_private)
+ return any(self.network_address in priv_network and
+ self.broadcast_address in priv_network
+ for priv_network in self._constants._private_networks)
@property
def is_global(self):
return (self.network_address.is_loopback and
self.broadcast_address.is_loopback)
+
+class _BaseConstants:
+
+ _private_networks = []
+
+
+_BaseNetwork._constants = _BaseConstants
+
+
class _BaseV4:
"""Base IPv4 object.
IPv4Address._constants = _IPv4Constants
+IPv4Network._constants = _IPv4Constants
class _BaseV6:
IPv6Address._constants = _IPv6Constants
+IPv6Network._constants = _IPv6Constants
-r"""JSON (JavaScript Object Notation) <http://json.org> is a subset of
+r"""JSON (JavaScript Object Notation) <https://json.org> is a subset of
JavaScript syntax (ECMA-262 3rd edition) used as a lightweight data
interchange format.
class JSONDecoder(object):
- """Simple JSON <http://json.org> decoder
+ """Simple JSON <https://json.org> decoder
Performs the following translations in decoding by default:
c_encode_basestring_ascii or py_encode_basestring_ascii)
class JSONEncoder(object):
- """Extensible JSON <http://json.org> encoder for Python data structures.
+ """Extensible JSON <https://json.org> encoder for Python data structures.
Supports the following objects and types by default:
def usesTime(self):
fmt = self._fmt
- return fmt.find('$asctime') >= 0 or fmt.find(self.asctime_format) >= 0
+ return fmt.find('$asctime') >= 0 or fmt.find(self.asctime_search) >= 0
def validate(self):
pattern = Template.pattern
raise
def createSocket(self):
+ """
+ Try to create a socket and, if it's not a datagram socket, connect it
+ to the other end. This method is called during handler initialization,
+ but it's not regarded as an error if the other end isn't listening yet
+ --- the method will be called again when emitting an event,
+ if there is no socket at that point.
+ """
address = self.address
socktype = self.socktype
self.unixsocket = True
# Syslog server may be unavailable during handler initialisation.
# C's openlog() function also ignores connection errors.
- # Moreover, we ignore these errors while logging, so it not worse
+ # Moreover, we ignore these errors while logging, so it's not worse
# to ignore it also here.
try:
self._connect_unixsocket(address)
def _send(self, cmd, name, rtype):
self.ensure_running()
msg = '{0}:{1}:{2}\n'.format(cmd, name, rtype).encode('ascii')
- if len(name) > 512:
+ if len(msg) > 512:
# posix guarantees that writes to a pipe of less than PIPE_BUF
# bytes are atomic, and that PIPE_BUF >= 512
- raise ValueError('name too long')
+ raise ValueError('msg too long')
nbytes = os.write(self._fd, msg)
assert nbytes == len(msg), "nbytes {0:n} but len(msg) {1:n}".format(
nbytes, len(msg))
)
finally:
_winapi.CloseHandle(h_map)
- size = _winapi.VirtualQuerySize(p_buf)
+ try:
+ size = _winapi.VirtualQuerySize(p_buf)
+ finally:
+ _winapi.UnmapViewOfFile(p_buf)
self._mmap = mmap.mmap(-1, size, tagname=name)
self._size = size
dirpath, dirnames, filenames
dirpath is a string, the path to the directory. dirnames is a list of
- the names of the subdirectories in dirpath (excluding '.' and '..').
+ the names of the subdirectories in dirpath (including symlinks to directories,
+ and excluding '.' and '..').
filenames is a list of the names of the non-directory files in dirpath.
Note that the names in the lists are just names, with no path components.
To get a full path (which begins with top) to a file or directory in
if last is None:
last = first + 10
filename = self.curframe.f_code.co_filename
+ # gh-93696: stdlib frozen modules provide a useful __file__
+ # this workaround can be removed with the closure of gh-89815
+ if filename.startswith("<frozen"):
+ tmp = self.curframe.f_globals.get("__file__")
+ if isinstance(tmp, str):
+ filename = tmp
breaklist = self.get_file_breaks(filename)
try:
lines = linecache.getlines(filename, self.curframe.f_globals)
except when needed.
"""
+ _fields = ('system', 'node', 'release', 'version', 'machine', 'processor')
+
@functools.cached_property
def processor(self):
return _unknown_as_blank(_Processor.get())
@classmethod
def _make(cls, iterable):
# override factory to affect length check
- num_fields = len(cls._fields)
+ num_fields = len(cls._fields) - 1
result = cls.__new__(cls, *iterable)
if len(result) != num_fields + 1:
msg = f'Expected {num_fields} arguments, got {len(result)}'
return len(tuple(iter(self)))
def __reduce__(self):
- return uname_result, tuple(self)[:len(self._fields)]
+ return uname_result, tuple(self)[:len(self._fields) - 1]
_uname_cache = None
def _escape(text):
m = _controlCharPat.search(text)
if m is not None:
- raise ValueError("strings can't contains control characters; "
+ raise ValueError("strings can't contain control characters; "
"use bytes instead")
text = text.replace("\r\n", "\n") # convert DOS line endings
text = text.replace("\r", "\n") # convert Mac line endings
if stat.S_ISLNK(s1.st_mode):
return False
+ path = os.fspath(path)
if isinstance(path, bytes):
parent = join(path, b'..')
else:
@dataclass(unsafe_hash=True)
class FunctionProfile:
- ncalls: int
+ ncalls: str
tottime: float
percall_tottime: float
cumtime: float
_GoInteractive = object()
def __call__(self, request=_GoInteractive):
if request is not self._GoInteractive:
- self.help(request)
+ try:
+ self.help(request)
+ except ImportError as e:
+ self.output.write(f'{e}\n')
else:
self.intro()
self.interact()
# -*- coding: utf-8 -*-
-# Autogenerated by Sphinx on Mon Oct 24 18:35:07 2022
+# Autogenerated by Sphinx on Tue Dec 6 19:05:00 2022
topics = {'assert': 'The "assert" statement\n'
'**********************\n'
'\n'
'yield_expression)]\n'
'\n'
'The difference from normal Assignment statements is that only '
- 'single\n'
+ 'a single\n'
'target is allowed.\n'
'\n'
'For simple names as assignment targets, if in class or module '
'analysis\n'
' tools and IDEs.\n'
'\n'
- 'Changed in version 3.8: Now annotated assignments allow same\n'
- 'expressions in the right hand side as the regular '
- 'assignments.\n'
- 'Previously, some expressions (like un-parenthesized tuple '
- 'expressions)\n'
- 'caused a syntax error.\n',
+ 'Changed in version 3.8: Now annotated assignments allow the '
+ 'same\n'
+ 'expressions in the right hand side as regular assignments. '
+ 'Previously,\n'
+ 'some expressions (like un-parenthesized tuple expressions) '
+ 'caused a\n'
+ 'syntax error.\n',
'async': 'Coroutines\n'
'**********\n'
'\n'
'that\n'
'multiple "except*" clauses can execute, each handling part of '
'the\n'
- 'exception group. Each clause executes once and handles an '
- 'exception\n'
- 'group of all matching exceptions. Each exception in the group '
- 'is\n'
- 'handled by at most one "except*" clause, the first that matches '
- 'it.\n'
+ 'exception group. Each clause executes at most once and handles '
+ 'an\n'
+ 'exception group of all matching exceptions. Each exception in '
+ 'the\n'
+ 'group is handled by at most one "except*" clause, the first '
+ 'that\n'
+ 'matches it.\n'
'\n'
' >>> try:\n'
' ... raise ExceptionGroup("eg",\n'
' | ValueError: 1\n'
' +------------------------------------\n'
'\n'
- ' Any remaining exceptions that were not handled by any '
- ':keyword:`!except*`\n'
- ' clause are re-raised at the end, combined into an exception '
- 'group along with\n'
- ' all exceptions that were raised from within '
- ':keyword:`!except*` clauses.\n'
+ 'Any remaining exceptions that were not handled by any "except*" '
+ 'clause\n'
+ 'are re-raised at the end, combined into an exception group along '
+ 'with\n'
+ 'all exceptions that were raised from within "except*" clauses.\n'
+ '\n'
+ 'If the raised exception is not an exception group and its type '
+ 'matches\n'
+ 'one of the "except*" clauses, it is caught and wrapped by an '
+ 'exception\n'
+ 'group with an empty message string.\n'
+ '\n'
+ ' >>> try:\n'
+ ' ... raise BlockingIOError\n'
+ ' ... except* BlockingIOError as e:\n'
+ ' ... print(repr(e))\n'
+ ' ...\n'
+ " ExceptionGroup('', (BlockingIOError()))\n"
'\n'
- ' An :keyword:`!except*` clause must have a matching type,\n'
- ' and this type cannot be a subclass of '
- ':exc:`BaseExceptionGroup`.\n'
- ' It is not possible to mix :keyword:`except` and '
- ':keyword:`!except*`\n'
- ' in the same :keyword:`try`.\n'
- ' :keyword:`break`, :keyword:`continue` and :keyword:`return`\n'
- ' cannot appear in an :keyword:`!except*` clause.\n'
+ 'An "except*" clause must have a matching type, and this type '
+ 'cannot be\n'
+ 'a subclass of "BaseExceptionGroup". It is not possible to mix '
+ '"except"\n'
+ 'and "except*" in the same "try". "break", "continue" and '
+ '"return"\n'
+ 'cannot appear in an "except*" clause.\n'
'\n'
'\n'
'"else" clause\n'
'the clauses had been separated out into individual import '
'statements.\n'
'\n'
- 'The details of the first step, finding and loading modules are\n'
+ 'The details of the first step, finding and loading modules, are\n'
'described in greater detail in the section on the import system, '
'which\n'
'also describes the various types of packages and modules that can '
'y)" is\n'
'typically invalid without special support in "MyClass". To '
'be able to\n'
- 'use that kind of patterns, the class needs to define a\n'
- '*__match_args__* attribute.\n'
+ 'use that kind of pattern, the class needs to define a '
+ '*__match_args__*\n'
+ 'attribute.\n'
'\n'
'object.__match_args__\n'
'\n'
'*start* and\n'
' *end* are interpreted as in slice notation.\n'
'\n'
+ ' If *sub* is empty, returns the number of empty strings '
+ 'between\n'
+ ' characters which is the length of the string plus one.\n'
+ '\n'
"str.encode(encoding='utf-8', errors='strict')\n"
'\n'
' Return an encoded version of the string as a bytes '
'followed by\n'
' the string itself.\n'
'\n'
- 'str.rsplit(sep=None, maxsplit=- 1)\n'
+ 'str.rsplit(sep=None, maxsplit=-1)\n'
'\n'
' Return a list of the words in the string, using *sep* '
'as the\n'
" >>> 'Monty Python'.removesuffix(' Python')\n"
" 'Monty'\n"
'\n'
- 'str.split(sep=None, maxsplit=- 1)\n'
+ 'str.split(sep=None, maxsplit=-1)\n'
'\n'
' Return a list of the words in the string, using *sep* '
'as the\n'
'the type matches some of the exceptions in the group. This means '
'that\n'
'multiple "except*" clauses can execute, each handling part of the\n'
- 'exception group. Each clause executes once and handles an exception\n'
- 'group of all matching exceptions. Each exception in the group is\n'
- 'handled by at most one "except*" clause, the first that matches it.\n'
+ 'exception group. Each clause executes at most once and handles an\n'
+ 'exception group of all matching exceptions. Each exception in the\n'
+ 'group is handled by at most one "except*" clause, the first that\n'
+ 'matches it.\n'
'\n'
' >>> try:\n'
' ... raise ExceptionGroup("eg",\n'
' | ValueError: 1\n'
' +------------------------------------\n'
'\n'
- ' Any remaining exceptions that were not handled by any '
- ':keyword:`!except*`\n'
- ' clause are re-raised at the end, combined into an exception group '
- 'along with\n'
- ' all exceptions that were raised from within :keyword:`!except*` '
- 'clauses.\n'
+ 'Any remaining exceptions that were not handled by any "except*" '
+ 'clause\n'
+ 'are re-raised at the end, combined into an exception group along '
+ 'with\n'
+ 'all exceptions that were raised from within "except*" clauses.\n'
'\n'
- ' An :keyword:`!except*` clause must have a matching type,\n'
- ' and this type cannot be a subclass of :exc:`BaseExceptionGroup`.\n'
- ' It is not possible to mix :keyword:`except` and '
- ':keyword:`!except*`\n'
- ' in the same :keyword:`try`.\n'
- ' :keyword:`break`, :keyword:`continue` and :keyword:`return`\n'
- ' cannot appear in an :keyword:`!except*` clause.\n'
+ 'If the raised exception is not an exception group and its type '
+ 'matches\n'
+ 'one of the "except*" clauses, it is caught and wrapped by an '
+ 'exception\n'
+ 'group with an empty message string.\n'
+ '\n'
+ ' >>> try:\n'
+ ' ... raise BlockingIOError\n'
+ ' ... except* BlockingIOError as e:\n'
+ ' ... print(repr(e))\n'
+ ' ...\n'
+ " ExceptionGroup('', (BlockingIOError()))\n"
+ '\n'
+ 'An "except*" clause must have a matching type, and this type cannot '
+ 'be\n'
+ 'a subclass of "BaseExceptionGroup". It is not possible to mix '
+ '"except"\n'
+ 'and "except*" in the same "try". "break", "continue" and "return"\n'
+ 'cannot appear in an "except*" clause.\n'
'\n'
'\n'
'"else" clause\n'
'dictionaries or\n'
'other mutable types (that are compared by value rather than '
'by object\n'
- 'identity) may not be used as keys. Numeric types used for '
- 'keys obey\n'
- 'the normal rules for numeric comparison: if two numbers '
- 'compare equal\n'
- '(such as "1" and "1.0") then they can be used '
- 'interchangeably to index\n'
- 'the same dictionary entry. (Note however, that since '
- 'computers store\n'
- 'floating-point numbers as approximations it is usually '
- 'unwise to use\n'
- 'them as dictionary keys.)\n'
+ 'identity) may not be used as keys. Values that compare equal '
+ '(such as\n'
+ '"1", "1.0", and "True") can be used interchangeably to index '
+ 'the same\n'
+ 'dictionary entry.\n'
'\n'
'class dict(**kwargs)\n'
'class dict(mapping, **kwargs)\n'
## -------------------- integer methods -------------------
def randrange(self, start, stop=None, step=_ONE):
- """Choose a random item from range(start, stop[, step]).
+ """Choose a random item from range(stop) or range(start, stop[, step]).
- This fixes the problem with randint() which includes the
- endpoint; in Python this is usually not what you want.
+ Roughly equivalent to ``choice(range(start, stop, step))`` but
+ supports arbitrarily large ranges and is optimized for common cases.
"""
# otherwise let the copy occur. copy2 will raise an error
if srcentry.is_dir():
copytree(srcobj, dstname, symlinks, ignore,
- copy_function, dirs_exist_ok=dirs_exist_ok)
+ copy_function, ignore_dangling_symlinks,
+ dirs_exist_ok)
else:
copy_function(srcobj, dstname)
elif srcentry.is_dir():
copytree(srcobj, dstname, symlinks, ignore, copy_function,
- dirs_exist_ok=dirs_exist_ok)
+ ignore_dangling_symlinks, dirs_exist_ok)
else:
# Will raise a SpecialFileError for unsupported file types
copy_function(srcobj, dstname)
tests = []
def test_aifc(h, f):
+ """AIFC and AIFF files"""
with warnings.catch_warnings():
warnings.simplefilter('ignore', category=DeprecationWarning)
import aifc
def test_au(h, f):
+ """AU and SND files"""
if h.startswith(b'.snd'):
func = get_long_be
elif h[:4] in (b'\0ds.', b'dns.'):
def test_hcom(h, f):
+ """HCOM file"""
if h[65:69] != b'FSSD' or h[128:132] != b'HCOM':
return None
divisor = get_long_be(h[144:148])
def test_voc(h, f):
+ """VOC file"""
if not h.startswith(b'Creative Voice File\032'):
return None
sbseek = get_short_le(h[20:22])
def test_wav(h, f):
+ """WAV file"""
import wave
# 'RIFF' <len> 'WAVE' 'fmt ' <len>
if not h.startswith(b'RIFF') or h[8:12] != b'WAVE' or h[12:16] != b'fmt ':
def test_8svx(h, f):
+ """8SVX file"""
if not h.startswith(b'FORM') or h[8:12] != b'8SVX':
return None
# Should decode it to get #channels -- assume always 1
def test_sndt(h, f):
+ """SNDT file"""
if h.startswith(b'SOUND'):
nsamples = get_long_le(h[8:12])
rate = get_short_le(h[20:22])
def test_sndr(h, f):
+ """SNDR file"""
if h.startswith(b'\0\0'):
rate = get_short_le(h[2:4])
if 4000 <= rate <= 25000:
self.type,
self.proto)
if not closed:
+ # getsockname and getpeername may not be available on WASI.
try:
laddr = self.getsockname()
if laddr:
s += ", laddr=%s" % str(laddr)
- except error:
+ except (error, AttributeError):
pass
try:
raddr = self.getpeername()
if raddr:
s += ", raddr=%s" % str(raddr)
- except error:
+ except (error, AttributeError):
pass
s += '>'
return s
def __repr__(self):
return f'{type(self).__name__}(mu={self._mu!r}, sigma={self._sigma!r})'
+
+ def __getstate__(self):
+ return self._mu, self._sigma
+
+ def __setstate__(self, state):
+ self._mu, self._sigma = state
if 'input' in kwargs and kwargs['input'] is None:
# Explicitly passing input=None was previously equivalent to passing an
# empty string. That is maintained here for backwards compatibility.
- if kwargs.get('universal_newlines') or kwargs.get('text'):
+ if kwargs.get('universal_newlines') or kwargs.get('text') or kwargs.get('encoding') \
+ or kwargs.get('errors'):
empty = ''
else:
empty = b''
The returned instance will have attributes args, returncode, stdout and
stderr. By default, stdout and stderr are not captured, and those attributes
- will be None. Pass stdout=PIPE and/or stderr=PIPE in order to capture them.
+ will be None. Pass stdout=PIPE and/or stderr=PIPE in order to capture them,
+ or pass capture_output=True to capture both.
If check is True and the exit code was non-zero, it raises a
CalledProcessError. The CalledProcessError object will have the return code
import os
import sys
import tokenize
-if not hasattr(tokenize, 'NL'):
- raise ValueError("tokenize.NL doesn't exist -- tokenize module too old")
__all__ = ["check", "NannyNag", "process_tokens"]
# Advance the file pointer.
if self.offset != self.fileobj.tell():
+ if self.offset == 0:
+ return None
self.fileobj.seek(self.offset - 1)
if not self.fileobj.read(1):
raise ReadError("unexpected end of data")
self.assertTrue(is_resource_tracker_reused)
+ def test_too_long_name_resource(self):
+ # gh-96819: Resource names that will make the length of a write to a pipe
+ # greater than PIPE_BUF are not allowed
+ rtype = "shared_memory"
+ too_long_name_resource = "a" * (512 - len(rtype))
+ with self.assertRaises(ValueError):
+ resource_tracker.register(too_long_name_resource, rtype)
+
class TestSimpleQueue(unittest.TestCase):
class SemLock(_multiprocessing.SemLock):
pass
name = f'test_semlock_subclass-{os.getpid()}'
- s = SemLock(1, 0, 10, name, 0)
+ s = SemLock(1, 0, 10, name, False)
_multiprocessing.sem_unlink(name)
sys._getframe()
+def test_syslog():
+ import syslog
+
+ def hook(event, args):
+ if event.startswith("syslog."):
+ print(event, *args)
+
+ sys.addaudithook(hook)
+ syslog.openlog('python')
+ syslog.syslog('test')
+ syslog.setlogmask(syslog.LOG_DEBUG)
+ syslog.closelog()
+ # implicit open
+ syslog.syslog('test2')
+ # open with default ident
+ syslog.openlog(logoption=syslog.LOG_NDELAY, facility=syslog.LOG_LOCAL0)
+ sys.argv = None
+ syslog.openlog()
+ syslog.closelog()
+
+
+def test_not_in_gc():
+ import gc
+
+ hook = lambda *a: None
+ sys.addaudithook(hook)
+
+ for o in gc.get_objects():
+ if isinstance(o, list):
+ assert hook not in o
+
+
if __name__ == "__main__":
from test.support import suppress_msvcrt_asserts
test_Py_UNICODE_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
{
PyObject *return_value = NULL;
- const Py_UNICODE *a;
- const Py_UNICODE *b;
- const Py_UNICODE *c;
- const Py_UNICODE *d;
+ const Py_UNICODE *a = NULL;
+ const Py_UNICODE *b = NULL;
+ const Py_UNICODE *c = NULL;
+ const Py_UNICODE *d = NULL;
Py_ssize_t d_length;
- const Py_UNICODE *e;
+ const Py_UNICODE *e = NULL;
Py_ssize_t e_length;
if (!_PyArg_ParseStack(args, nargs, "O&O&O&u#Z#:test_Py_UNICODE_converter",
const Py_UNICODE *b, const Py_UNICODE *c,
const Py_UNICODE *d, Py_ssize_t d_length,
const Py_UNICODE *e, Py_ssize_t e_length)
-/*[clinic end generated code: output=45e92604de227552 input=064a3b68ad7f04b0]*/
+/*[clinic end generated code: output=9d41b3a38a0f6f2f input=064a3b68ad7f04b0]*/
/*[clinic input]
unpickled = self.loads(self.dumps(method, proto))
self.assertEqual(method(obj), unpickled(obj))
+ descriptors = (
+ PyMethodsTest.__dict__['cheese'], # static method descriptor
+ PyMethodsTest.__dict__['wine'], # class method descriptor
+ )
+ for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+ for descr in descriptors:
+ with self.subTest(proto=proto, descr=descr):
+ self.assertRaises(TypeError, self.dumps, descr, proto)
+
def test_c_methods(self):
global Subclass
class Subclass(tuple):
unpickled = self.loads(self.dumps(method, proto))
self.assertEqual(method(*args), unpickled(*args))
+ descriptors = (
+ bytearray.__dict__['maketrans'], # built-in static method descriptor
+ dict.__dict__['fromkeys'], # built-in class method descriptor
+ )
+ for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+ for descr in descriptors:
+ with self.subTest(proto=proto, descr=descr):
+ self.assertRaises(TypeError, self.dumps, descr, proto)
+
def test_compat_pickle(self):
tests = [
(range(1, 7), '__builtin__', 'xrange'),
self.checkraises(ValueError, 'hello', 'split', '', 0)
def test_rsplit(self):
+ # without arg
+ self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'rsplit')
+ self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'rsplit')
+ self.checkequal([], '', 'rsplit')
+
# by a char
self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'rsplit', '|')
self.checkequal(['a|b|c', 'd'], 'a|b|c|d', 'rsplit', '|', 1)
# with keyword args
self.checkequal(['a', 'b', 'c', 'd'], 'a|b|c|d', 'rsplit', sep='|')
+ self.checkequal(['a', 'b', 'c', 'd'], 'a b c d', 'rsplit', sep=None)
+ self.checkequal(['a b c', 'd'],
+ 'a b c d', 'rsplit', sep=None, maxsplit=1)
self.checkequal(['a|b|c', 'd'],
'a|b|c|d', 'rsplit', '|', maxsplit=1)
self.checkequal(['a|b|c', 'd'],
self._env = {k.upper(): os.getenv(k) for k in os.environ}
self._env["PYTHONHOME"] = os.path.dirname(self.real)
- if sysconfig.is_python_build(True):
+ if sysconfig.is_python_build():
self._env["PYTHONPATH"] = STDLIB_DIR
else:
def _platform_specific(self):
Raise an AssertionError if the process exit code is not equal to exitcode.
- If the process runs longer than timeout seconds (SHORT_TIMEOUT by default),
+ If the process runs longer than timeout seconds (LONG_TIMEOUT by default),
kill the process (if signal.SIGKILL is available) and raise an
AssertionError. The timeout feature is not available on Windows.
"""
import signal
if timeout is None:
- timeout = SHORT_TIMEOUT
+ timeout = LONG_TIMEOUT
t0 = time.monotonic()
sleep = 0.001
max_sleep = 0.1
# process is still running
dt = time.monotonic() - t0
- if dt > SHORT_TIMEOUT:
+ if dt > timeout:
try:
os.kill(pid, signal.SIGKILL)
os.waitpid(pid, 0)
Sig('-z'),
]
failures = ['a', '--foo', '-xa', '-x --foo', '-x -z', '-z -x',
- '-yx', '-yz a', '-yyyx', '-yyyza', '-xyza']
+ '-yx', '-yz a', '-yyyx', '-yyyza', '-xyza', '-x=']
successes = [
('', NS(x=False, yyy=None, z=None)),
('-x', NS(x=True, yyy=None, z=None)),
self.assertEqual(ast.increment_lineno(src).lineno, 2)
self.assertIsNone(ast.increment_lineno(src).end_lineno)
+ def test_increment_lineno_on_module(self):
+ src = ast.parse(dedent("""\
+ a = 1
+ b = 2 # type: ignore
+ c = 3
+ d = 4 # type: ignore@tag
+ """), type_comments=True)
+ ast.increment_lineno(src, n=5)
+ self.assertEqual(src.type_ignores[0].lineno, 7)
+ self.assertEqual(src.type_ignores[1].lineno, 9)
+ self.assertEqual(src.type_ignores[1].tag, '@tag')
+
def test_iter_fields(self):
node = ast.parse('foo()', mode='eval')
d = dict(ast.iter_fields(node.body))
def test_env_var_debug(self):
code = '\n'.join((
'import asyncio',
- 'loop = asyncio.get_event_loop()',
+ 'loop = asyncio.new_event_loop()',
'print(loop.get_debug())'))
# Test with -E to not fail if the unit test was run with
def test_get_event_loop(self):
policy = asyncio.DefaultEventLoopPolicy()
self.assertIsNone(policy._local._loop)
-
- loop = policy.get_event_loop()
+ with self.assertWarns(DeprecationWarning) as cm:
+ loop = policy.get_event_loop()
+ self.assertEqual(cm.filename, __file__)
self.assertIsInstance(loop, asyncio.AbstractEventLoop)
self.assertIs(policy._local._loop, loop)
policy, "set_event_loop",
wraps=policy.set_event_loop) as m_set_event_loop:
- loop = policy.get_event_loop()
+ with self.assertWarns(DeprecationWarning) as cm:
+ loop = policy.get_event_loop()
+ self.addCleanup(loop.close)
+ self.assertEqual(cm.filename, __file__)
# policy._local._loop must be set through .set_event_loop()
# (the unix DefaultEventLoopPolicy needs this call to attach
def test_set_event_loop(self):
policy = asyncio.DefaultEventLoopPolicy()
- old_loop = policy.get_event_loop()
+ old_loop = policy.new_event_loop()
+ policy.set_event_loop(old_loop)
self.assertRaises(TypeError, policy.set_event_loop, object())
asyncio.set_event_loop_policy(Policy())
loop = asyncio.new_event_loop()
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaises(TestError):
- asyncio.get_event_loop()
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaises(TestError):
+ asyncio.get_event_loop()
asyncio.set_event_loop(None)
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaises(TestError):
- asyncio.get_event_loop()
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaises(TestError):
+ asyncio.get_event_loop()
with self.assertRaisesRegex(RuntimeError, 'no running'):
asyncio.get_running_loop()
loop.run_until_complete(func())
asyncio.set_event_loop(loop)
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaises(TestError):
- asyncio.get_event_loop()
- self.assertEqual(cm.filename, __file__)
-
+ with self.assertRaises(TestError):
+ asyncio.get_event_loop()
asyncio.set_event_loop(None)
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaises(TestError):
- asyncio.get_event_loop()
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaises(TestError):
+ asyncio.get_event_loop()
finally:
asyncio.set_event_loop_policy(old_policy)
self.addCleanup(loop2.close)
self.assertEqual(cm.filename, __file__)
asyncio.set_event_loop(None)
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaisesRegex(RuntimeError, 'no current'):
- asyncio.get_event_loop()
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current'):
+ asyncio.get_event_loop()
with self.assertRaisesRegex(RuntimeError, 'no running'):
asyncio.get_running_loop()
loop.run_until_complete(func())
asyncio.set_event_loop(loop)
- with self.assertWarns(DeprecationWarning) as cm:
- self.assertIs(asyncio.get_event_loop(), loop)
- self.assertEqual(cm.filename, __file__)
+ self.assertIs(asyncio.get_event_loop(), loop)
asyncio.set_event_loop(None)
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaisesRegex(RuntimeError, 'no current'):
- asyncio.get_event_loop()
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current'):
+ asyncio.get_event_loop()
finally:
asyncio.set_event_loop_policy(old_policy)
self.assertTrue(f.cancelled())
def test_constructor_without_loop(self):
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaisesRegex(RuntimeError, 'There is no current event loop'):
- self._new_future()
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current event loop'):
+ self._new_future()
def test_constructor_use_running_loop(self):
async def test():
self.assertIs(f.get_loop(), self.loop)
def test_constructor_use_global_loop(self):
- # Deprecated in 3.10
+ # Deprecated in 3.10, undeprecated in 3.11.1
asyncio.set_event_loop(self.loop)
self.addCleanup(asyncio.set_event_loop, None)
- with self.assertWarns(DeprecationWarning) as cm:
- f = self._new_future()
- self.assertEqual(cm.filename, __file__)
+ f = self._new_future()
self.assertIs(f._loop, self.loop)
self.assertIs(f.get_loop(), self.loop)
return (arg, threading.get_ident())
ex = concurrent.futures.ThreadPoolExecutor(1)
f1 = ex.submit(run, 'oi')
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaises(RuntimeError):
- asyncio.wrap_future(f1)
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current event loop'):
+ asyncio.wrap_future(f1)
ex.shutdown(wait=True)
def test_wrap_future_use_running_loop(self):
ex.shutdown(wait=True)
def test_wrap_future_use_global_loop(self):
- # Deprecated in 3.10
+ # Deprecated in 3.10, undeprecated in 3.11.1
asyncio.set_event_loop(self.loop)
self.addCleanup(asyncio.set_event_loop, None)
def run(arg):
return (arg, threading.get_ident())
ex = concurrent.futures.ThreadPoolExecutor(1)
f1 = ex.submit(run, 'oi')
- with self.assertWarns(DeprecationWarning) as cm:
- f2 = asyncio.wrap_future(f1)
- self.assertEqual(cm.filename, __file__)
+ f2 = asyncio.wrap_future(f1)
self.assertIs(self.loop, f2._loop)
ex.shutdown(wait=True)
fut.remove_done_callback(evil())
+ def test_remove_done_callbacks_list_clear(self):
+ # see https://github.com/python/cpython/issues/97592 for details
+
+ fut = self._new_future()
+ fut.add_done_callback(str)
+
+ for _ in range(63):
+ fut.add_done_callback(id)
+
+ class evil:
+ def __eq__(self, other):
+ fut.remove_done_callback(other)
+
+ fut.remove_done_callback(evil())
+
def test_schedule_callbacks_list_mutation_1(self):
# see http://bugs.python.org/issue28963 for details
tr._closing = True
tr._force_close(None)
test_utils.run_briefly(self.loop)
+ # See https://github.com/python/cpython/issues/89237
+ # `protocol.connection_lost` should be called even if
+ # the transport was closed forcefully otherwise
+ # the resources held by protocol will never be freed
+ # and waiters will never be notified leading to hang.
+ self.assertTrue(self.protocol.connection_lost.called)
+
+ def test_force_close_protocol_connection_lost_once(self):
+ tr = self.socket_transport()
self.assertFalse(self.protocol.connection_lost.called)
+ tr._closing = True
+ # Calling _force_close twice should not call
+ # protocol.connection_lost twice
+ tr._force_close(None)
+ tr._force_close(None)
+ test_utils.run_briefly(self.loop)
+ self.assertEqual(1, self.protocol.connection_lost.call_count)
+
+ def test_close_protocol_connection_lost_once(self):
+ tr = self.socket_transport()
+ self.assertFalse(self.protocol.connection_lost.called)
+ # Calling close twice should not call
+ # protocol.connection_lost twice
+ tr.close()
+ tr.close()
+ test_utils.run_briefly(self.loop)
+ self.assertEqual(1, self.protocol.connection_lost.call_count)
def test_fatal_error_2(self):
tr = self.socket_transport()
"""Tests for sendfile functionality."""
import asyncio
+import errno
import os
import socket
import sys
srv_proto, cli_proto = self.prepare_sendfile(close_after=1024)
with self.assertRaises(ConnectionError):
- self.run_loop(
- self.loop.sendfile(cli_proto.transport, self.file))
+ try:
+ self.run_loop(
+ self.loop.sendfile(cli_proto.transport, self.file))
+ except OSError as e:
+ # macOS may raise OSError of EPROTOTYPE when writing to a
+ # socket that is in the process of closing down.
+ if e.errno == errno.EPROTOTYPE and sys.platform == "darwin":
+ raise ConnectionError
+ else:
+ raise
+
self.run_loop(srv_proto.done)
self.assertTrue(1024 <= srv_proto.nbytes < len(self.DATA),
def run(self):
try:
with self._sock:
- self._sock.setblocking(0)
+ self._sock.setblocking(False)
self._run()
finally:
self._s1.close()
self.assertEqual(data, b'data')
def test_streamreader_constructor_without_loop(self):
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaisesRegex(RuntimeError, 'There is no current event loop'):
- asyncio.StreamReader()
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current event loop'):
+ asyncio.StreamReader()
def test_streamreader_constructor_use_running_loop(self):
# asyncio issue #184: Ensure that StreamReaderProtocol constructor
def test_streamreader_constructor_use_global_loop(self):
# asyncio issue #184: Ensure that StreamReaderProtocol constructor
# retrieves the current loop if the loop parameter is not set
- # Deprecated in 3.10
+ # Deprecated in 3.10, undeprecated in 3.11.1
self.addCleanup(asyncio.set_event_loop, None)
asyncio.set_event_loop(self.loop)
- with self.assertWarns(DeprecationWarning) as cm:
- reader = asyncio.StreamReader()
- self.assertEqual(cm.filename, __file__)
+ reader = asyncio.StreamReader()
self.assertIs(reader._loop, self.loop)
def test_streamreaderprotocol_constructor_without_loop(self):
reader = mock.Mock()
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaisesRegex(RuntimeError, 'There is no current event loop'):
- asyncio.StreamReaderProtocol(reader)
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current event loop'):
+ asyncio.StreamReaderProtocol(reader)
def test_streamreaderprotocol_constructor_use_running_loop(self):
# asyncio issue #184: Ensure that StreamReaderProtocol constructor
def test_streamreaderprotocol_constructor_use_global_loop(self):
# asyncio issue #184: Ensure that StreamReaderProtocol constructor
# retrieves the current loop if the loop parameter is not set
- # Deprecated in 3.10
+ # Deprecated in 3.10, undeprecated in 3.11.1
self.addCleanup(asyncio.set_event_loop, None)
asyncio.set_event_loop(self.loop)
reader = mock.Mock()
- with self.assertWarns(DeprecationWarning) as cm:
- protocol = asyncio.StreamReaderProtocol(reader)
- self.assertEqual(cm.filename, __file__)
+ protocol = asyncio.StreamReaderProtocol(reader)
self.assertIs(protocol._loop, self.loop)
def test_multiple_drain(self):
import os
+import shutil
import signal
import sys
import unittest
else:
self.assertEqual(-signal.SIGKILL, returncode)
+ def test_kill_issue43884(self):
+ if sys.platform == 'win32':
+ blocking_shell_command = f'{sys.executable} -c "import time; time.sleep(2)"'
+ else:
+ blocking_shell_command = 'sleep 1; sleep 1'
+ creationflags = 0
+ if sys.platform == 'win32':
+ from subprocess import CREATE_NEW_PROCESS_GROUP
+ # On windows create a new process group so that killing process
+ # kills the process and all its children.
+ creationflags = CREATE_NEW_PROCESS_GROUP
+ proc = self.loop.run_until_complete(
+ asyncio.create_subprocess_shell(blocking_shell_command, stdout=asyncio.subprocess.PIPE,
+ creationflags=creationflags)
+ )
+ self.loop.run_until_complete(asyncio.sleep(1))
+ if sys.platform == 'win32':
+ proc.send_signal(signal.CTRL_BREAK_EVENT)
+ # On windows it is an alias of terminate which sets the return code
+ proc.kill()
+ returncode = self.loop.run_until_complete(proc.wait())
+ if sys.platform == 'win32':
+ self.assertIsInstance(returncode, int)
+ # expect 1 but sometimes get 0
+ else:
+ self.assertEqual(-signal.SIGKILL, returncode)
+
def test_terminate(self):
args = PROGRAM_BLOCKED
proc = self.loop.run_until_complete(
self.assertEqual(output, None)
self.assertEqual(exitcode, 0)
+ @unittest.skipIf(sys.platform != 'linux', "Don't have /dev/stdin")
+ def test_devstdin_input(self):
+
+ async def devstdin_input(message):
+ code = 'file = open("/dev/stdin"); data = file.read(); print(len(data))'
+ proc = await asyncio.create_subprocess_exec(
+ sys.executable, '-c', code,
+ stdin=asyncio.subprocess.PIPE,
+ stdout=asyncio.subprocess.PIPE,
+ stderr=asyncio.subprocess.PIPE,
+ close_fds=False,
+ )
+ stdout, stderr = await proc.communicate(message)
+ exitcode = await proc.wait()
+ return (stdout, exitcode)
+
+ output, exitcode = self.loop.run_until_complete(devstdin_input(b'abc'))
+ self.assertEqual(output.rstrip(), b'3')
+ self.assertEqual(exitcode, 0)
+
def test_cancel_process_wait(self):
# Issue #23140: cancel Process.wait()
a = notmuch()
self.addCleanup(a.close)
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaisesRegex(RuntimeError, 'There is no current event loop'):
- asyncio.ensure_future(a)
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current event loop'):
+ asyncio.ensure_future(a)
async def test():
return asyncio.ensure_future(notmuch())
self.assertTrue(t.done())
self.assertEqual(t.result(), 'ok')
- # Deprecated in 3.10
+ # Deprecated in 3.10, undeprecated in 3.11.1
asyncio.set_event_loop(self.loop)
self.addCleanup(asyncio.set_event_loop, None)
- with self.assertWarns(DeprecationWarning) as cm:
- t = asyncio.ensure_future(notmuch())
- self.assertEqual(cm.filename, __file__)
+ t = asyncio.ensure_future(notmuch())
self.assertIs(t._loop, self.loop)
self.loop.run_until_complete(t)
self.assertTrue(t.done())
await asyncio.sleep(0)
return timed_out, structured_block_finished, outer_code_reached
- # Test which timed out.
- t1 = self.new_task(loop, make_request_with_timeout(sleep=10.0, timeout=0.1))
- timed_out, structured_block_finished, outer_code_reached = (
- loop.run_until_complete(t1)
- )
- self.assertTrue(timed_out)
- self.assertFalse(structured_block_finished) # it was cancelled
- self.assertTrue(outer_code_reached) # task got uncancelled after leaving
- # the structured block and continued until
- # completion
- self.assertEqual(t1.cancelling(), 0) # no pending cancellation of the outer task
-
- # Test which did not time out.
- t2 = self.new_task(loop, make_request_with_timeout(sleep=0, timeout=10.0))
- timed_out, structured_block_finished, outer_code_reached = (
- loop.run_until_complete(t2)
- )
- self.assertFalse(timed_out)
- self.assertTrue(structured_block_finished)
- self.assertTrue(outer_code_reached)
- self.assertEqual(t2.cancelling(), 0)
+ try:
+ # Test which timed out.
+ t1 = self.new_task(loop, make_request_with_timeout(sleep=10.0, timeout=0.1))
+ timed_out, structured_block_finished, outer_code_reached = (
+ loop.run_until_complete(t1)
+ )
+ self.assertTrue(timed_out)
+ self.assertFalse(structured_block_finished) # it was cancelled
+ self.assertTrue(outer_code_reached) # task got uncancelled after leaving
+ # the structured block and continued until
+ # completion
+ self.assertEqual(t1.cancelling(), 0) # no pending cancellation of the outer task
+
+ # Test which did not time out.
+ t2 = self.new_task(loop, make_request_with_timeout(sleep=0, timeout=10.0))
+ timed_out, structured_block_finished, outer_code_reached = (
+ loop.run_until_complete(t2)
+ )
+ self.assertFalse(timed_out)
+ self.assertTrue(structured_block_finished)
+ self.assertTrue(outer_code_reached)
+ self.assertEqual(t2.cancelling(), 0)
+ finally:
+ loop.close()
def test_cancel(self):
self.addCleanup(a.close)
futs = asyncio.as_completed([a])
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaisesRegex(RuntimeError, 'There is no current event loop'):
- list(futs)
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current event loop'):
+ list(futs)
def test_as_completed_coroutine_use_running_loop(self):
loop = self.new_test_loop()
inner = coro()
self.addCleanup(inner.close)
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaisesRegex(RuntimeError, 'There is no current event loop'):
- asyncio.shield(inner)
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current event loop'):
+ asyncio.shield(inner)
def test_shield_coroutine_use_running_loop(self):
async def coro():
self.assertEqual(res, 42)
def test_shield_coroutine_use_global_loop(self):
- # Deprecated in 3.10
+ # Deprecated in 3.10, undeprecated in 3.11.1
async def coro():
return 42
asyncio.set_event_loop(self.loop)
self.addCleanup(asyncio.set_event_loop, None)
- with self.assertWarns(DeprecationWarning) as cm:
- outer = asyncio.shield(coro())
- self.assertEqual(cm.filename, __file__)
+ outer = asyncio.shield(coro())
self.assertEqual(outer._loop, self.loop)
res = self.loop.run_until_complete(outer)
self.assertEqual(res, 42)
self.assertIsNone(asyncio.current_task(loop=self.loop))
def test_current_task_no_running_loop_implicit(self):
- with self.assertRaises(RuntimeError):
+ with self.assertRaisesRegex(RuntimeError, 'no running event loop'):
asyncio.current_task()
def test_current_task_with_implicit_loop(self):
return asyncio.gather(*args, **kwargs)
def test_constructor_empty_sequence_without_loop(self):
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaises(RuntimeError):
- asyncio.gather()
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current event loop'):
+ asyncio.gather()
def test_constructor_empty_sequence_use_running_loop(self):
async def gather():
self.assertEqual(fut.result(), [])
def test_constructor_empty_sequence_use_global_loop(self):
- # Deprecated in 3.10
+ # Deprecated in 3.10, undeprecated in 3.11.1
asyncio.set_event_loop(self.one_loop)
self.addCleanup(asyncio.set_event_loop, None)
- with self.assertWarns(DeprecationWarning) as cm:
- fut = asyncio.gather()
- self.assertEqual(cm.filename, __file__)
+ fut = asyncio.gather()
self.assertIsInstance(fut, asyncio.Future)
self.assertIs(fut._loop, self.one_loop)
self._run_loop(self.one_loop)
self.addCleanup(gen1.close)
gen2 = coro()
self.addCleanup(gen2.close)
- with self.assertWarns(DeprecationWarning) as cm:
- with self.assertRaises(RuntimeError):
- asyncio.gather(gen1, gen2)
- self.assertEqual(cm.filename, __file__)
+ with self.assertRaisesRegex(RuntimeError, 'no current event loop'):
+ asyncio.gather(gen1, gen2)
def test_constructor_use_running_loop(self):
async def coro():
self.one_loop.run_until_complete(fut)
def test_constructor_use_global_loop(self):
- # Deprecated in 3.10
+ # Deprecated in 3.10, undeprecated in 3.11.1
async def coro():
return 'abc'
asyncio.set_event_loop(self.other_loop)
self.addCleanup(asyncio.set_event_loop, None)
gen1 = coro()
gen2 = coro()
- with self.assertWarns(DeprecationWarning) as cm:
- fut = asyncio.gather(gen1, gen2)
- self.assertEqual(cm.filename, __file__)
+ fut = asyncio.gather(gen1, gen2)
self.assertIs(fut._loop, self.other_loop)
self.other_loop.run_until_complete(fut)
def test_child_watcher_replace_mainloop_existing(self):
policy = self.create_policy()
- loop = policy.get_event_loop()
+ loop = policy.new_event_loop()
+ policy.set_event_loop(loop)
# Explicitly setup SafeChildWatcher,
# default ThreadedChildWatcher has no _loop property
self.close_loop(self.loop)
self.assertFalse(self.loop.call_exception_handler.called)
+ def test_address_argument_type_error(self):
+ # Regression test for https://github.com/python/cpython/issues/98793
+ proactor = self.loop._proactor
+ sock = socket.socket(type=socket.SOCK_DGRAM)
+ bad_address = None
+ with self.assertRaises(TypeError):
+ proactor.connect(sock, bad_address)
+ with self.assertRaises(TypeError):
+ proactor.sendto(sock, b'abc', addr=bad_address)
+ sock.close()
+
class WinPolicyTests(test_utils.TestCase):
class AuditTest(unittest.TestCase):
+ maxDiff = None
@support.requires_subprocess()
def do_test(self, *args):
self.assertEqual(actual, expected)
+ def test_syslog(self):
+ syslog = import_helper.import_module("syslog")
+
+ returncode, events, stderr = self.run_python("test_syslog")
+ if returncode:
+ self.fail(stderr)
+
+ if support.verbose:
+ print('Events:', *events, sep='\n ')
+
+ self.assertSequenceEqual(
+ events,
+ [('syslog.openlog', ' ', f'python 0 {syslog.LOG_USER}'),
+ ('syslog.syslog', ' ', f'{syslog.LOG_INFO} test'),
+ ('syslog.setlogmask', ' ', f'{syslog.LOG_DEBUG}'),
+ ('syslog.closelog', '', ''),
+ ('syslog.syslog', ' ', f'{syslog.LOG_INFO} test2'),
+ ('syslog.openlog', ' ', f'audit-tests.py 0 {syslog.LOG_USER}'),
+ ('syslog.openlog', ' ', f'audit-tests.py {syslog.LOG_NDELAY} {syslog.LOG_LOCAL0}'),
+ ('syslog.openlog', ' ', f'None 0 {syslog.LOG_USER}'),
+ ('syslog.closelog', '', '')]
+ )
+
+ def test_not_in_gc(self):
+ returncode, _, stderr = self.run_python("test_not_in_gc")
+ if returncode:
+ self.fail(stderr)
+
+
if __name__ == "__main__":
unittest.main()
[repr(exc), exc.__class__.__name__ + '()'])
self.interface_test_driver(results)
+ def test_setstate_refcount_no_crash(self):
+ # gh-97591: Acquire strong reference before calling tp_hash slot
+ # in PyObject_SetAttr.
+ import gc
+ d = {}
+ class HashThisKeyWillClearTheDict(str):
+ def __hash__(self) -> int:
+ d.clear()
+ return super().__hash__()
+ class Value(str):
+ pass
+ exc = Exception()
+
+ d[HashThisKeyWillClearTheDict()] = Value() # refcount of Value() is 1 now
+
+ # Exception.__setstate__ should aquire a strong reference of key and
+ # value in the dict. Otherwise, Value()'s refcount would go below
+ # zero in the tp_hash call in PyObject_SetAttr(), and it would cause
+ # crash in GC.
+ exc.__setstate__(d) # __hash__() is called again here, clearing the dict.
+
+ # This GC would crash if the refcount of Value() goes below zero.
+ gc.collect()
+
+
class UsageTests(unittest.TestCase):
"""Test usage of exceptions"""
__import__('string')
__import__(name='sys')
__import__(name='time', level=0)
- self.assertRaises(ImportError, __import__, 'spamspam')
+ self.assertRaises(ModuleNotFoundError, __import__, 'spamspam')
self.assertRaises(TypeError, __import__, 1, 2, 3, 4)
self.assertRaises(ValueError, __import__, '')
self.assertRaises(TypeError, __import__, 'sys', name='sys')
self.assertRaises(TypeError,
exec, code, {'__builtins__': 123})
+ def test_exec_globals_frozen(self):
class frozendict_error(Exception):
pass
self.assertRaises(frozendict_error,
exec, code, namespace)
+ def test_exec_globals_error_on_get(self):
+ # custom `globals` or `builtins` can raise errors on item access
+ class setonlyerror(Exception):
+ pass
+
+ class setonlydict(dict):
+ def __getitem__(self, key):
+ raise setonlyerror
+
+ # globals' `__getitem__` raises
+ code = compile("globalname", "test", "exec")
+ self.assertRaises(setonlyerror,
+ exec, code, setonlydict({'globalname': 1}))
+
+ # builtins' `__getitem__` raises
+ code = compile("superglobal", "test", "exec")
+ self.assertRaises(setonlyerror, exec, code,
+ {'__builtins__': setonlydict({'superglobal': 1})})
+
+ def test_exec_globals_dict_subclass(self):
+ class customdict(dict): # this one should not do anything fancy
+ pass
+
+ code = compile("superglobal", "test", "exec")
+ # works correctly
+ exec(code, {'__builtins__': customdict({'superglobal': 1})})
+ # custom builtins dict subclass is missing key
+ self.assertRaisesRegex(NameError, "name 'superglobal' is not defined",
+ exec, code, {'__builtins__': customdict()})
+
def test_exec_redirected(self):
savestdout = sys.stdout
sys.stdout = None # Whatever that cannot flush()
self.assertEqual(A.__module__, __name__)
with self.assertRaises(ValueError):
type('A\x00B', (), {})
- with self.assertRaises(ValueError):
+ with self.assertRaises(UnicodeEncodeError):
type('A\udcdcB', (), {})
with self.assertRaises(TypeError):
type(b'A', (), {})
with self.assertRaises(ValueError):
A.__name__ = 'A\x00B'
self.assertEqual(A.__name__, 'C')
- with self.assertRaises(ValueError):
+ with self.assertRaises(UnicodeEncodeError):
A.__name__ = 'A\udcdcB'
self.assertEqual(A.__name__, 'C')
with self.assertRaises(TypeError):
self.kwargs.clear()
gc.collect()
return 0
- x = IntWithDict(dont_inherit=IntWithDict())
+ x = IntWithDict(optimize=IntWithDict())
# We test the argument handling of "compile" here, the compilation
# itself is not relevant. When we pass flags=x below, x.__index__() is
# called, which changes the keywords dict.
--- /dev/null
+import os
+from test.support import load_package_tests
+
+def load_tests(*args):
+ return load_package_tests(os.path.dirname(__file__), *args)
--- /dev/null
+import unittest
+
+unittest.main('test.test_capi')
class Z(object):
def __len__(self):
return 1
- self.assertRaises(TypeError, _posixsubprocess.fork_exec,
- 1,Z(),3,(1, 2),5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23)
+ with self.assertRaisesRegex(TypeError, 'indexing'):
+ _posixsubprocess.fork_exec(
+ 1,Z(),True,(1, 2),5,6,7,8,9,10,11,12,13,14,True,True,17,False,19,20,21,22,False)
# Issue #15736: overflow in _PySequence_BytesToCharpArray()
class Z(object):
def __len__(self):
def __getitem__(self, i):
return b'x'
self.assertRaises(MemoryError, _posixsubprocess.fork_exec,
- 1,Z(),3,(1, 2),5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23)
+ 1,Z(),True,(1, 2),5,6,7,8,9,10,11,12,13,14,True,True,17,False,19,20,21,22,False)
@unittest.skipUnless(_posixsubprocess, '_posixsubprocess required for this test.')
def test_subprocess_fork_exec(self):
# Issue #15738: crash in subprocess_fork_exec()
self.assertRaises(TypeError, _posixsubprocess.fork_exec,
- Z(),[b'1'],3,(1, 2),5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23)
+ Z(),[b'1'],True,(1, 2),5,6,7,8,9,10,11,12,13,14,True,True,17,False,19,20,21,22,False)
@unittest.skipIf(MISSING_C_DOCSTRINGS,
"Signature information for builtins requires docstrings")
self.assertRaises(TypeError, _testcapi.get_mapping_values, bad_mapping)
self.assertRaises(TypeError, _testcapi.get_mapping_items, bad_mapping)
+ def test_mapping_has_key(self):
+ dct = {'a': 1}
+ self.assertTrue(_testcapi.mapping_has_key(dct, 'a'))
+ self.assertFalse(_testcapi.mapping_has_key(dct, 'b'))
+
+ class SubDict(dict):
+ pass
+
+ dct2 = SubDict({'a': 1})
+ self.assertTrue(_testcapi.mapping_has_key(dct2, 'a'))
+ self.assertFalse(_testcapi.mapping_has_key(dct2, 'b'))
+
+ def test_sequence_set_slice(self):
+ # Correct case:
+ data = [1, 2, 3, 4, 5]
+ data_copy = data.copy()
+
+ _testcapi.sequence_set_slice(data, 1, 3, [8, 9])
+ data_copy[1:3] = [8, 9]
+ self.assertEqual(data, data_copy)
+ self.assertEqual(data, [1, 8, 9, 4, 5])
+
+ # Custom class:
+ class Custom:
+ def __setitem__(self, index, value):
+ self.index = index
+ self.value = value
+
+ c = Custom()
+ _testcapi.sequence_set_slice(c, 0, 5, 'abc')
+ self.assertEqual(c.index, slice(0, 5))
+ self.assertEqual(c.value, 'abc')
+
+ # Immutable sequences must raise:
+ bad_seq1 = (1, 2, 3, 4)
+ with self.assertRaises(TypeError):
+ _testcapi.sequence_set_slice(bad_seq1, 1, 3, (8, 9))
+ self.assertEqual(bad_seq1, (1, 2, 3, 4))
+
+ bad_seq2 = 'abcd'
+ with self.assertRaises(TypeError):
+ _testcapi.sequence_set_slice(bad_seq2, 1, 3, 'xy')
+ self.assertEqual(bad_seq2, 'abcd')
+
+ # Not a sequence:
+ with self.assertRaises(TypeError):
+ _testcapi.sequence_set_slice(None, 1, 3, 'xy')
+
+ mapping = {1: 'a', 2: 'b', 3: 'c'}
+ with self.assertRaises(TypeError):
+ _testcapi.sequence_set_slice(mapping, 1, 3, 'xy')
+ self.assertEqual(mapping, {1: 'a', 2: 'b', 3: 'c'})
+
+ def test_sequence_del_slice(self):
+ # Correct case:
+ data = [1, 2, 3, 4, 5]
+ data_copy = data.copy()
+
+ _testcapi.sequence_del_slice(data, 1, 3)
+ del data_copy[1:3]
+ self.assertEqual(data, data_copy)
+ self.assertEqual(data, [1, 4, 5])
+
+ # Custom class:
+ class Custom:
+ def __delitem__(self, index):
+ self.index = index
+
+ c = Custom()
+ _testcapi.sequence_del_slice(c, 0, 5)
+ self.assertEqual(c.index, slice(0, 5))
+
+ # Immutable sequences must raise:
+ bad_seq1 = (1, 2, 3, 4)
+ with self.assertRaises(TypeError):
+ _testcapi.sequence_del_slice(bad_seq1, 1, 3)
+ self.assertEqual(bad_seq1, (1, 2, 3, 4))
+
+ bad_seq2 = 'abcd'
+ with self.assertRaises(TypeError):
+ _testcapi.sequence_del_slice(bad_seq2, 1, 3)
+ self.assertEqual(bad_seq2, 'abcd')
+
+ # Not a sequence:
+ with self.assertRaises(TypeError):
+ _testcapi.sequence_del_slice(None, 1, 3)
+
+ mapping = {1: 'a', 2: 'b', 3: 'c'}
+ with self.assertRaises(TypeError):
+ _testcapi.sequence_del_slice(mapping, 1, 3)
+ self.assertEqual(mapping, {1: 'a', 2: 'b', 3: 'c'})
+
@unittest.skipUnless(hasattr(_testcapi, 'negative_refcount'),
'need _testcapi.negative_refcount')
def test_negative_refcount(self):
with self.subTest(name=name):
self.assertTrue(hasattr(ctypes.pythonapi, name))
+ def test_eval_get_func_name(self):
+ def function_example(): ...
+
+ class A:
+ def method_example(self): ...
+
+ self.assertEqual(_testcapi.eval_get_func_name(function_example),
+ "function_example")
+ self.assertEqual(_testcapi.eval_get_func_name(A.method_example),
+ "method_example")
+ self.assertEqual(_testcapi.eval_get_func_name(A().method_example),
+ "method_example")
+ self.assertEqual(_testcapi.eval_get_func_name(sum), "sum") # c function
+ self.assertEqual(_testcapi.eval_get_func_name(A), "type")
+
+ def test_eval_get_func_desc(self):
+ def function_example(): ...
+
+ class A:
+ def method_example(self): ...
+
+ self.assertEqual(_testcapi.eval_get_func_desc(function_example),
+ "()")
+ self.assertEqual(_testcapi.eval_get_func_desc(A.method_example),
+ "()")
+ self.assertEqual(_testcapi.eval_get_func_desc(A().method_example),
+ "()")
+ self.assertEqual(_testcapi.eval_get_func_desc(sum), "()") # c function
+ self.assertEqual(_testcapi.eval_get_func_desc(A), " object")
+
+ def test_function_get_code(self):
+ import types
+
+ def some():
+ pass
+
+ code = _testcapi.function_get_code(some)
+ self.assertIsInstance(code, types.CodeType)
+ self.assertEqual(code, some.__code__)
+
+ with self.assertRaises(SystemError):
+ _testcapi.function_get_code(None) # not a function
+
+ def test_function_get_globals(self):
+ def some():
+ pass
+
+ globals_ = _testcapi.function_get_globals(some)
+ self.assertIsInstance(globals_, dict)
+ self.assertEqual(globals_, some.__globals__)
+
+ with self.assertRaises(SystemError):
+ _testcapi.function_get_globals(None) # not a function
+
+ def test_function_get_module(self):
+ def some():
+ pass
+
+ module = _testcapi.function_get_module(some)
+ self.assertIsInstance(module, str)
+ self.assertEqual(module, some.__module__)
+
+ with self.assertRaises(SystemError):
+ _testcapi.function_get_module(None) # not a function
+
class TestPendingCalls(unittest.TestCase):
--- /dev/null
+import unittest
+import sys
+from test import support
+from test.support import import_helper
+
+try:
+ import _testcapi
+except ImportError:
+ _testcapi = None
+
+
+class CAPITest(unittest.TestCase):
+
+ # Test PyUnicode_FromFormat()
+ def test_from_format(self):
+ import_helper.import_module('ctypes')
+ from ctypes import (
+ c_char_p,
+ pythonapi, py_object, sizeof,
+ c_int, c_long, c_longlong, c_ssize_t,
+ c_uint, c_ulong, c_ulonglong, c_size_t, c_void_p)
+ name = "PyUnicode_FromFormat"
+ _PyUnicode_FromFormat = getattr(pythonapi, name)
+ _PyUnicode_FromFormat.argtypes = (c_char_p,)
+ _PyUnicode_FromFormat.restype = py_object
+
+ def PyUnicode_FromFormat(format, *args):
+ cargs = tuple(
+ py_object(arg) if isinstance(arg, str) else arg
+ for arg in args)
+ return _PyUnicode_FromFormat(format, *cargs)
+
+ def check_format(expected, format, *args):
+ text = PyUnicode_FromFormat(format, *args)
+ self.assertEqual(expected, text)
+
+ # ascii format, non-ascii argument
+ check_format('ascii\x7f=unicode\xe9',
+ b'ascii\x7f=%U', 'unicode\xe9')
+
+ # non-ascii format, ascii argument: ensure that PyUnicode_FromFormatV()
+ # raises an error
+ self.assertRaisesRegex(ValueError,
+ r'^PyUnicode_FromFormatV\(\) expects an ASCII-encoded format '
+ 'string, got a non-ASCII byte: 0xe9$',
+ PyUnicode_FromFormat, b'unicode\xe9=%s', 'ascii')
+
+ # test "%c"
+ check_format('\uabcd',
+ b'%c', c_int(0xabcd))
+ check_format('\U0010ffff',
+ b'%c', c_int(0x10ffff))
+ with self.assertRaises(OverflowError):
+ PyUnicode_FromFormat(b'%c', c_int(0x110000))
+ # Issue #18183
+ check_format('\U00010000\U00100000',
+ b'%c%c', c_int(0x10000), c_int(0x100000))
+
+ # test "%"
+ check_format('%',
+ b'%')
+ check_format('%',
+ b'%%')
+ check_format('%s',
+ b'%%s')
+ check_format('[%]',
+ b'[%%]')
+ check_format('%abc',
+ b'%%%s', b'abc')
+
+ # truncated string
+ check_format('abc',
+ b'%.3s', b'abcdef')
+ check_format('abc[\ufffd',
+ b'%.5s', 'abc[\u20ac]'.encode('utf8'))
+ check_format("'\\u20acABC'",
+ b'%A', '\u20acABC')
+ check_format("'\\u20",
+ b'%.5A', '\u20acABCDEF')
+ check_format("'\u20acABC'",
+ b'%R', '\u20acABC')
+ check_format("'\u20acA",
+ b'%.3R', '\u20acABCDEF')
+ check_format('\u20acAB',
+ b'%.3S', '\u20acABCDEF')
+ check_format('\u20acAB',
+ b'%.3U', '\u20acABCDEF')
+ check_format('\u20acAB',
+ b'%.3V', '\u20acABCDEF', None)
+ check_format('abc[\ufffd',
+ b'%.5V', None, 'abc[\u20ac]'.encode('utf8'))
+
+ # following tests comes from #7330
+ # test width modifier and precision modifier with %S
+ check_format("repr= abc",
+ b'repr=%5S', 'abc')
+ check_format("repr=ab",
+ b'repr=%.2S', 'abc')
+ check_format("repr= ab",
+ b'repr=%5.2S', 'abc')
+
+ # test width modifier and precision modifier with %R
+ check_format("repr= 'abc'",
+ b'repr=%8R', 'abc')
+ check_format("repr='ab",
+ b'repr=%.3R', 'abc')
+ check_format("repr= 'ab",
+ b'repr=%5.3R', 'abc')
+
+ # test width modifier and precision modifier with %A
+ check_format("repr= 'abc'",
+ b'repr=%8A', 'abc')
+ check_format("repr='ab",
+ b'repr=%.3A', 'abc')
+ check_format("repr= 'ab",
+ b'repr=%5.3A', 'abc')
+
+ # test width modifier and precision modifier with %s
+ check_format("repr= abc",
+ b'repr=%5s', b'abc')
+ check_format("repr=ab",
+ b'repr=%.2s', b'abc')
+ check_format("repr= ab",
+ b'repr=%5.2s', b'abc')
+
+ # test width modifier and precision modifier with %U
+ check_format("repr= abc",
+ b'repr=%5U', 'abc')
+ check_format("repr=ab",
+ b'repr=%.2U', 'abc')
+ check_format("repr= ab",
+ b'repr=%5.2U', 'abc')
+
+ # test width modifier and precision modifier with %V
+ check_format("repr= abc",
+ b'repr=%5V', 'abc', b'123')
+ check_format("repr=ab",
+ b'repr=%.2V', 'abc', b'123')
+ check_format("repr= ab",
+ b'repr=%5.2V', 'abc', b'123')
+ check_format("repr= 123",
+ b'repr=%5V', None, b'123')
+ check_format("repr=12",
+ b'repr=%.2V', None, b'123')
+ check_format("repr= 12",
+ b'repr=%5.2V', None, b'123')
+
+ # test integer formats (%i, %d, %u)
+ check_format('010',
+ b'%03i', c_int(10))
+ check_format('0010',
+ b'%0.4i', c_int(10))
+ check_format('-123',
+ b'%i', c_int(-123))
+ check_format('-123',
+ b'%li', c_long(-123))
+ check_format('-123',
+ b'%lli', c_longlong(-123))
+ check_format('-123',
+ b'%zi', c_ssize_t(-123))
+
+ check_format('-123',
+ b'%d', c_int(-123))
+ check_format('-123',
+ b'%ld', c_long(-123))
+ check_format('-123',
+ b'%lld', c_longlong(-123))
+ check_format('-123',
+ b'%zd', c_ssize_t(-123))
+
+ check_format('123',
+ b'%u', c_uint(123))
+ check_format('123',
+ b'%lu', c_ulong(123))
+ check_format('123',
+ b'%llu', c_ulonglong(123))
+ check_format('123',
+ b'%zu', c_size_t(123))
+
+ # test long output
+ min_longlong = -(2 ** (8 * sizeof(c_longlong) - 1))
+ max_longlong = -min_longlong - 1
+ check_format(str(min_longlong),
+ b'%lld', c_longlong(min_longlong))
+ check_format(str(max_longlong),
+ b'%lld', c_longlong(max_longlong))
+ max_ulonglong = 2 ** (8 * sizeof(c_ulonglong)) - 1
+ check_format(str(max_ulonglong),
+ b'%llu', c_ulonglong(max_ulonglong))
+ PyUnicode_FromFormat(b'%p', c_void_p(-1))
+
+ # test padding (width and/or precision)
+ check_format('123'.rjust(10, '0'),
+ b'%010i', c_int(123))
+ check_format('123'.rjust(100),
+ b'%100i', c_int(123))
+ check_format('123'.rjust(100, '0'),
+ b'%.100i', c_int(123))
+ check_format('123'.rjust(80, '0').rjust(100),
+ b'%100.80i', c_int(123))
+
+ check_format('123'.rjust(10, '0'),
+ b'%010u', c_uint(123))
+ check_format('123'.rjust(100),
+ b'%100u', c_uint(123))
+ check_format('123'.rjust(100, '0'),
+ b'%.100u', c_uint(123))
+ check_format('123'.rjust(80, '0').rjust(100),
+ b'%100.80u', c_uint(123))
+
+ check_format('123'.rjust(10, '0'),
+ b'%010x', c_int(0x123))
+ check_format('123'.rjust(100),
+ b'%100x', c_int(0x123))
+ check_format('123'.rjust(100, '0'),
+ b'%.100x', c_int(0x123))
+ check_format('123'.rjust(80, '0').rjust(100),
+ b'%100.80x', c_int(0x123))
+
+ # test %A
+ check_format(r"%A:'abc\xe9\uabcd\U0010ffff'",
+ b'%%A:%A', 'abc\xe9\uabcd\U0010ffff')
+
+ # test %V
+ check_format('repr=abc',
+ b'repr=%V', 'abc', b'xyz')
+
+ # test %p
+ # We cannot test the exact result,
+ # because it returns a hex representation of a C pointer,
+ # which is going to be different each time. But, we can test the format.
+ p_format_regex = r'^0x[a-zA-Z0-9]{3,}$'
+ p_format1 = PyUnicode_FromFormat(b'%p', 'abc')
+ self.assertIsInstance(p_format1, str)
+ self.assertRegex(p_format1, p_format_regex)
+
+ p_format2 = PyUnicode_FromFormat(b'%p %p', '123456', b'xyz')
+ self.assertIsInstance(p_format2, str)
+ self.assertRegex(p_format2,
+ r'0x[a-zA-Z0-9]{3,} 0x[a-zA-Z0-9]{3,}')
+
+ # Extra args are ignored:
+ p_format3 = PyUnicode_FromFormat(b'%p', '123456', None, b'xyz')
+ self.assertIsInstance(p_format3, str)
+ self.assertRegex(p_format3, p_format_regex)
+
+ # Test string decode from parameter of %s using utf-8.
+ # b'\xe4\xba\xba\xe6\xb0\x91' is utf-8 encoded byte sequence of
+ # '\u4eba\u6c11'
+ check_format('repr=\u4eba\u6c11',
+ b'repr=%V', None, b'\xe4\xba\xba\xe6\xb0\x91')
+
+ #Test replace error handler.
+ check_format('repr=abc\ufffd',
+ b'repr=%V', None, b'abc\xff')
+
+ # not supported: copy the raw format string. these tests are just here
+ # to check for crashes and should not be considered as specifications
+ check_format('%s',
+ b'%1%s', b'abc')
+ check_format('%1abc',
+ b'%1abc')
+ check_format('%+i',
+ b'%+i', c_int(10))
+ check_format('%.%s',
+ b'%.%s', b'abc')
+
+ # Issue #33817: empty strings
+ check_format('',
+ b'')
+ check_format('',
+ b'%s', b'')
+
+ # Test PyUnicode_AsWideChar()
+ @support.cpython_only
+ @unittest.skipIf(_testcapi is None, 'need _testcapi module')
+ def test_aswidechar(self):
+ from _testcapi import unicode_aswidechar
+ import_helper.import_module('ctypes')
+ from ctypes import c_wchar, sizeof
+
+ wchar, size = unicode_aswidechar('abcdef', 2)
+ self.assertEqual(size, 2)
+ self.assertEqual(wchar, 'ab')
+
+ wchar, size = unicode_aswidechar('abc', 3)
+ self.assertEqual(size, 3)
+ self.assertEqual(wchar, 'abc')
+
+ wchar, size = unicode_aswidechar('abc', 4)
+ self.assertEqual(size, 3)
+ self.assertEqual(wchar, 'abc\0')
+
+ wchar, size = unicode_aswidechar('abc', 10)
+ self.assertEqual(size, 3)
+ self.assertEqual(wchar, 'abc\0')
+
+ wchar, size = unicode_aswidechar('abc\0def', 20)
+ self.assertEqual(size, 7)
+ self.assertEqual(wchar, 'abc\0def\0')
+
+ nonbmp = chr(0x10ffff)
+ if sizeof(c_wchar) == 2:
+ buflen = 3
+ nchar = 2
+ else: # sizeof(c_wchar) == 4
+ buflen = 2
+ nchar = 1
+ wchar, size = unicode_aswidechar(nonbmp, buflen)
+ self.assertEqual(size, nchar)
+ self.assertEqual(wchar, nonbmp + '\0')
+
+ # Test PyUnicode_AsWideCharString()
+ @support.cpython_only
+ @unittest.skipIf(_testcapi is None, 'need _testcapi module')
+ def test_aswidecharstring(self):
+ from _testcapi import unicode_aswidecharstring
+ import_helper.import_module('ctypes')
+ from ctypes import c_wchar, sizeof
+
+ wchar, size = unicode_aswidecharstring('abc')
+ self.assertEqual(size, 3)
+ self.assertEqual(wchar, 'abc\0')
+
+ wchar, size = unicode_aswidecharstring('abc\0def')
+ self.assertEqual(size, 7)
+ self.assertEqual(wchar, 'abc\0def\0')
+
+ nonbmp = chr(0x10ffff)
+ if sizeof(c_wchar) == 2:
+ nchar = 2
+ else: # sizeof(c_wchar) == 4
+ nchar = 1
+ wchar, size = unicode_aswidecharstring(nonbmp)
+ self.assertEqual(size, nchar)
+ self.assertEqual(wchar, nonbmp + '\0')
+
+ # Test PyUnicode_AsUCS4()
+ @support.cpython_only
+ @unittest.skipIf(_testcapi is None, 'need _testcapi module')
+ def test_asucs4(self):
+ from _testcapi import unicode_asucs4
+ for s in ['abc', '\xa1\xa2', '\u4f60\u597d', 'a\U0001f600',
+ 'a\ud800b\udfffc', '\ud834\udd1e']:
+ l = len(s)
+ self.assertEqual(unicode_asucs4(s, l, True), s+'\0')
+ self.assertEqual(unicode_asucs4(s, l, False), s+'\uffff')
+ self.assertEqual(unicode_asucs4(s, l+1, True), s+'\0\uffff')
+ self.assertEqual(unicode_asucs4(s, l+1, False), s+'\0\uffff')
+ self.assertRaises(SystemError, unicode_asucs4, s, l-1, True)
+ self.assertRaises(SystemError, unicode_asucs4, s, l-2, False)
+ s = '\0'.join([s, s])
+ self.assertEqual(unicode_asucs4(s, len(s), True), s+'\0')
+ self.assertEqual(unicode_asucs4(s, len(s), False), s+'\uffff')
+
+ # Test PyUnicode_AsUTF8()
+ @support.cpython_only
+ @unittest.skipIf(_testcapi is None, 'need _testcapi module')
+ def test_asutf8(self):
+ from _testcapi import unicode_asutf8
+
+ bmp = '\u0100'
+ bmp2 = '\uffff'
+ nonbmp = chr(0x10ffff)
+
+ self.assertEqual(unicode_asutf8(bmp), b'\xc4\x80')
+ self.assertEqual(unicode_asutf8(bmp2), b'\xef\xbf\xbf')
+ self.assertEqual(unicode_asutf8(nonbmp), b'\xf4\x8f\xbf\xbf')
+ self.assertRaises(UnicodeEncodeError, unicode_asutf8, 'a\ud800b\udfffc')
+
+ # Test PyUnicode_AsUTF8AndSize()
+ @support.cpython_only
+ @unittest.skipIf(_testcapi is None, 'need _testcapi module')
+ def test_asutf8andsize(self):
+ from _testcapi import unicode_asutf8andsize
+
+ bmp = '\u0100'
+ bmp2 = '\uffff'
+ nonbmp = chr(0x10ffff)
+
+ self.assertEqual(unicode_asutf8andsize(bmp), (b'\xc4\x80', 2))
+ self.assertEqual(unicode_asutf8andsize(bmp2), (b'\xef\xbf\xbf', 3))
+ self.assertEqual(unicode_asutf8andsize(nonbmp), (b'\xf4\x8f\xbf\xbf', 4))
+ self.assertRaises(UnicodeEncodeError, unicode_asutf8andsize, 'a\ud800b\udfffc')
+
+ # Test PyUnicode_FindChar()
+ @support.cpython_only
+ @unittest.skipIf(_testcapi is None, 'need _testcapi module')
+ def test_findchar(self):
+ from _testcapi import unicode_findchar
+
+ for str in "\xa1", "\u8000\u8080", "\ud800\udc02", "\U0001f100\U0001f1f1":
+ for i, ch in enumerate(str):
+ self.assertEqual(unicode_findchar(str, ord(ch), 0, len(str), 1), i)
+ self.assertEqual(unicode_findchar(str, ord(ch), 0, len(str), -1), i)
+
+ str = "!>_<!"
+ self.assertEqual(unicode_findchar(str, 0x110000, 0, len(str), 1), -1)
+ self.assertEqual(unicode_findchar(str, 0x110000, 0, len(str), -1), -1)
+ # start < end
+ self.assertEqual(unicode_findchar(str, ord('!'), 1, len(str)+1, 1), 4)
+ self.assertEqual(unicode_findchar(str, ord('!'), 1, len(str)+1, -1), 4)
+ # start >= end
+ self.assertEqual(unicode_findchar(str, ord('!'), 0, 0, 1), -1)
+ self.assertEqual(unicode_findchar(str, ord('!'), len(str), 0, 1), -1)
+ # negative
+ self.assertEqual(unicode_findchar(str, ord('!'), -len(str), -1, 1), 0)
+ self.assertEqual(unicode_findchar(str, ord('!'), -len(str), -1, -1), 0)
+
+ # Test PyUnicode_CopyCharacters()
+ @support.cpython_only
+ @unittest.skipIf(_testcapi is None, 'need _testcapi module')
+ def test_copycharacters(self):
+ from _testcapi import unicode_copycharacters
+
+ strings = [
+ 'abcde', '\xa1\xa2\xa3\xa4\xa5',
+ '\u4f60\u597d\u4e16\u754c\uff01',
+ '\U0001f600\U0001f601\U0001f602\U0001f603\U0001f604'
+ ]
+
+ for idx, from_ in enumerate(strings):
+ # wide -> narrow: exceed maxchar limitation
+ for to in strings[:idx]:
+ self.assertRaises(
+ SystemError,
+ unicode_copycharacters, to, 0, from_, 0, 5
+ )
+ # same kind
+ for from_start in range(5):
+ self.assertEqual(
+ unicode_copycharacters(from_, 0, from_, from_start, 5),
+ (from_[from_start:from_start+5].ljust(5, '\0'),
+ 5-from_start)
+ )
+ for to_start in range(5):
+ self.assertEqual(
+ unicode_copycharacters(from_, to_start, from_, to_start, 5),
+ (from_[to_start:to_start+5].rjust(5, '\0'),
+ 5-to_start)
+ )
+ # narrow -> wide
+ # Tests omitted since this creates invalid strings.
+
+ s = strings[0]
+ self.assertRaises(IndexError, unicode_copycharacters, s, 6, s, 0, 5)
+ self.assertRaises(IndexError, unicode_copycharacters, s, -1, s, 0, 5)
+ self.assertRaises(IndexError, unicode_copycharacters, s, 0, s, 6, 5)
+ self.assertRaises(IndexError, unicode_copycharacters, s, 0, s, -1, 5)
+ self.assertRaises(SystemError, unicode_copycharacters, s, 1, s, 0, 5)
+ self.assertRaises(SystemError, unicode_copycharacters, s, 0, s, 0, -1)
+ self.assertRaises(SystemError, unicode_copycharacters, s, 0, b'', 0, 0)
+
+ @support.cpython_only
+ @unittest.skipIf(_testcapi is None, 'need _testcapi module')
+ def test_pep393_utf8_caching_bug(self):
+ # Issue #25709: Problem with string concatenation and utf-8 cache
+ from _testcapi import getargs_s_hash
+ for k in 0x24, 0xa4, 0x20ac, 0x1f40d:
+ s = ''
+ for i in range(5):
+ # Due to CPython specific optimization the 's' string can be
+ # resized in-place.
+ s += chr(k)
+ # Parsing with the "s#" format code calls indirectly
+ # PyUnicode_AsUTF8AndSize() which creates the UTF-8
+ # encoded string cached in the Unicode object.
+ self.assertEqual(getargs_s_hash(s), chr(k).encode() * (i + 1))
+ # Check that the second call returns the same result
+ self.assertEqual(getargs_s_hash(s), chr(k).encode() * (i + 1))
+
+
+if __name__ == "__main__":
+ unittest.main()
self.assertIn(": can't open file ", err)
self.assertNotEqual(proc.returncode, 0)
+ @unittest.skipUnless(os.path.exists('/dev/fd/0'), 'requires /dev/fd platform')
+ @unittest.skipIf(sys.platform.startswith("freebsd") and
+ os.stat("/dev").st_dev == os.stat("/dev/fd").st_dev,
+ "Requires fdescfs mounted on /dev/fd on FreeBSD")
+ def test_script_as_dev_fd(self):
+ # GH-87235: On macOS passing a non-trivial script to /dev/fd/N can cause
+ # problems because all open /dev/fd/N file descriptors share the same
+ # offset.
+ script = 'print("12345678912345678912345")'
+ with os_helper.temp_dir() as work_dir:
+ script_name = _make_test_script(work_dir, 'script.py', script)
+ with open(script_name, "r") as fp:
+ p = spawn_python(f"/dev/fd/{fp.fileno()}", close_fds=False, pass_fds=(0,1,2,fp.fileno()))
+ out, err = p.communicate()
+ self.assertEqual(out, b"12345678912345678912345\n")
+
+
def tearDownModule():
support.reap_children()
import unittest
import textwrap
import weakref
+import dis
try:
import ctypes
self.check_lines(misshappen)
self.check_lines(bug93662)
+ @cpython_only
+ def test_code_new_empty(self):
+ # If this test fails, it means that the construction of PyCode_NewEmpty
+ # needs to be modified! Please update this test *and* PyCode_NewEmpty,
+ # so that they both stay in sync.
+ def f():
+ pass
+ PY_CODE_LOCATION_INFO_NO_COLUMNS = 13
+ f.__code__ = f.__code__.replace(
+ co_firstlineno=42,
+ co_code=bytes(
+ [
+ dis.opmap["RESUME"], 0,
+ dis.opmap["LOAD_ASSERTION_ERROR"], 0,
+ dis.opmap["RAISE_VARARGS"], 1,
+ ]
+ ),
+ co_linetable=bytes(
+ [
+ (1 << 7)
+ | (PY_CODE_LOCATION_INFO_NO_COLUMNS << 3)
+ | (3 - 1),
+ 0,
+ ]
+ ),
+ )
+ self.assertRaises(AssertionError, f)
+ self.assertEqual(
+ list(f.__code__.co_positions()),
+ 3 * [(42, 42, None, None)],
+ )
+
if check_impl_detail(cpython=True) and ctypes is not None:
py = ctypes.pythonapi
"spamspam", self.spambe)
def test_bug691291(self):
- # Files are always opened in binary mode, even if no binary mode was
+ # If encoding is not None, then
+ # files are always opened in binary mode, even if no binary mode was
# specified. This means that no automatic conversion of '\n' is done
# on reading and writing.
s1 = 'Hello\r\nworld\r\n'
self.assertEqual("pyth\xf6n.org".encode("idna"), b"xn--pythn-mua.org")
self.assertEqual("pyth\xf6n.org.".encode("idna"), b"xn--pythn-mua.org.")
+ def test_builtin_decode_length_limit(self):
+ with self.assertRaisesRegex(UnicodeError, "too long"):
+ (b"xn--016c"+b"a"*1100).decode("idna")
+ with self.assertRaisesRegex(UnicodeError, "too long"):
+ (b"xn--016c"+b"a"*70).decode("idna")
+
def test_stream(self):
r = codecs.getreader("idna")(io.BytesIO(b"abc"))
r.read(3)
warnings.simplefilter('error', SyntaxWarning)
compile_command('1 is 1', symbol='exec')
+ # Check DeprecationWarning treated as an SyntaxError
+ with warnings.catch_warnings(), self.assertRaises(SyntaxError):
+ warnings.simplefilter('error', DeprecationWarning)
+ compile_command(r"'\e'", symbol='exec')
+
+ def test_incomplete_warning(self):
+ with warnings.catch_warnings(record=True) as w:
+ warnings.simplefilter('always')
+ self.assertIncomplete("'\\e' + (")
+ self.assertEqual(w, [])
+
+ def test_invalid_warning(self):
+ with warnings.catch_warnings(record=True) as w:
+ warnings.simplefilter('always')
+ self.assertInvalid("'\\e' 1")
+ self.assertEqual(len(w), 1)
+ self.assertEqual(w[0].category, DeprecationWarning)
+ self.assertRegex(str(w[0].message), 'invalid escape sequence')
+ self.assertEqual(w[0].filename, '<input>')
+
if __name__ == "__main__":
unittest.main()
def __await__(self):
yield
+ self.validate_abstract_methods(Awaitable, '__await__')
+
non_samples = [None, int(), gen(), object()]
for x in non_samples:
self.assertNotIsInstance(x, Awaitable)
def __await__(self):
yield
+ self.validate_abstract_methods(Coroutine, '__await__', 'send', 'throw')
+
non_samples = [None, int(), gen(), object(), Bar()]
for x in non_samples:
self.assertNotIsInstance(x, Coroutine)
containers = [
seq,
ItemsView({1: nan, 2: obj}),
+ KeysView({1: nan, 2: obj}),
ValuesView({1: nan, 2: obj})
]
for container in containers:
mymap['red'] = 5
self.assertIsInstance(mymap.keys(), Set)
self.assertIsInstance(mymap.keys(), KeysView)
+ self.assertIsInstance(mymap.values(), Collection)
+ self.assertIsInstance(mymap.values(), ValuesView)
self.assertIsInstance(mymap.items(), Set)
self.assertIsInstance(mymap.items(), ItemsView)
self.assertFalse(issubclass(sample, ByteString))
self.assertNotIsInstance(memoryview(b""), ByteString)
self.assertFalse(issubclass(memoryview, ByteString))
+ self.validate_abstract_methods(ByteString, '__getitem__', '__len__')
def test_MutableSequence(self):
for sample in [tuple, str, bytes]:
for instr in dis.Bytecode(while_not_chained):
self.assertNotEqual(instr.opname, "EXTENDED_ARG")
+ def test_compare_positions(self):
+ for opname, op in [
+ ("COMPARE_OP", "<"),
+ ("COMPARE_OP", "<="),
+ ("COMPARE_OP", ">"),
+ ("COMPARE_OP", ">="),
+ ("CONTAINS_OP", "in"),
+ ("CONTAINS_OP", "not in"),
+ ("IS_OP", "is"),
+ ("IS_OP", "is not"),
+ ]:
+ expr = f'a {op} b {op} c'
+ expected_positions = 2 * [(2, 2, 0, len(expr))]
+ for source in [
+ f"\\\n{expr}", f'if \\\n{expr}: x', f"x if \\\n{expr} else y"
+ ]:
+ code = compile(source, "<test>", "exec")
+ actual_positions = [
+ instruction.positions
+ for instruction in dis.get_instructions(code)
+ if instruction.opname == opname
+ ]
+ with self.subTest(source):
+ self.assertEqual(actual_positions, expected_positions)
+
+
@requires_debug_ranges()
class TestSourcePositions(unittest.TestCase):
# Ensure that compiled code snippets have correct line and column numbers
# This raised on 3.10.0 to 3.10.5
compile(code, "<foo>", "single")
+ def test_stack_3050_2(self):
+ M = 3050
+ args = ", ".join(f"arg{i}:type{i}" for i in range(M))
+ code = f"def f({args}):\n pass"
+ # This raised on 3.10.0 to 3.10.5
+ compile(code, "<foo>", "single")
+
class TestStackSizeStability(unittest.TestCase):
# Check that repeating certain snippets doesn't increase the stack size
self.assertClose(complex(5.3, 9.8).conjugate(), 5.3-9.8j)
def test_constructor(self):
- class OS:
+ class NS:
def __init__(self, value): self.value = value
def __complex__(self): return self.value
- class NS(object):
- def __init__(self, value): self.value = value
- def __complex__(self): return self.value
- self.assertEqual(complex(OS(1+10j)), 1+10j)
self.assertEqual(complex(NS(1+10j)), 1+10j)
- self.assertRaises(TypeError, complex, OS(None))
self.assertRaises(TypeError, complex, NS(None))
self.assertRaises(TypeError, complex, {})
self.assertRaises(TypeError, complex, NS(1.5))
async def func():
async with CM():
- assert (1, ) == 1
+ self.assertEqual((1, ), 1)
with self.assertRaises(AssertionError):
run_async(func())
def test_unawaited_warning_during_shutdown(self):
code = ("import asyncio\n"
"async def f(): pass\n"
- "asyncio.gather(f())\n")
+ "async def t(): asyncio.gather(f())\n"
+ "asyncio.run(t())\n")
assert_python_ok("-c", code)
code = ("import sys\n"
self._read_test(['1,@,3,@,5'], [['1', ',3,', '5']], quotechar='@')
self._read_test(['1,\0,3,\0,5'], [['1', ',3,', '5']], quotechar='\0')
+ def test_read_skipinitialspace(self):
+ self._read_test(['no space, space, spaces,\ttab'],
+ [['no space', 'space', 'spaces', '\ttab']],
+ skipinitialspace=True)
+
def test_read_bigfield(self):
# This exercises the buffer realloc functionality and field size
# limits.
self.assertEqual(csv.get_dialect(name).delimiter, ';')
self.assertEqual([['X', 'Y', 'Z']], list(csv.reader(['X;Y;Z'], name)))
+ def test_register_kwargs_override(self):
+ class mydialect(csv.Dialect):
+ delimiter = "\t"
+ quotechar = '"'
+ doublequote = True
+ skipinitialspace = False
+ lineterminator = '\r\n'
+ quoting = csv.QUOTE_MINIMAL
+
+ name = 'test_dialect'
+ csv.register_dialect(name, mydialect,
+ delimiter=';',
+ quotechar="'",
+ doublequote=False,
+ skipinitialspace=True,
+ lineterminator='\n',
+ quoting=csv.QUOTE_ALL)
+ self.addCleanup(csv.unregister_dialect, name)
+
+ # Ensure that kwargs do override attributes of a dialect class:
+ dialect = csv.get_dialect(name)
+ self.assertEqual(dialect.delimiter, ';')
+ self.assertEqual(dialect.quotechar, "'")
+ self.assertEqual(dialect.doublequote, False)
+ self.assertEqual(dialect.skipinitialspace, True)
+ self.assertEqual(dialect.lineterminator, '\n')
+ self.assertEqual(dialect.quoting, csv.QUOTE_ALL)
+
def test_incomplete_dialect(self):
class myexceltsv(csv.Dialect):
delimiter = "\t"
c = C('foo')
self.assertEqual(c.object, 'foo')
+ def test_field_named_BUILTINS_frozen(self):
+ # gh-96151
+ @dataclass(frozen=True)
+ class C:
+ BUILTINS: int
+ c = C(5)
+ self.assertEqual(c.BUILTINS, 5)
+
def test_field_named_like_builtin(self):
# Attribute names can shadow built-in names
# since code generation is used.
requires_legacy_unicode_capi, check_sanitizer)
from test.support import (TestFailed,
run_with_locale, cpython_only,
- darwin_malloc_err_warning)
+ darwin_malloc_err_warning, is_emscripten)
from test.support.import_helper import import_fresh_module
from test.support import threading_helper
from test.support import warnings_helper
# Issue 41540:
@unittest.skipIf(sys.platform.startswith("aix"),
"AIX: default ulimit: test is flaky because of extreme over-allocation")
+ @unittest.skipIf(is_emscripten, "Test is unstable on Emscripten")
@unittest.skipIf(check_sanitizer(address=True, memory=True),
"ASAN/MSAN sanitizer defaults to crashing "
"instead of returning NULL for malloc failure.")
with self.assertRaisesRegex(AttributeError, "'X' object has no attribute 'a'"):
X().a
+ # Test string subclass in `__slots__`, see gh-98783
+ class SubStr(str):
+ pass
+ class X(object):
+ __slots__ = (SubStr('x'),)
+ X().x = 1
+ with self.assertRaisesRegex(AttributeError, "'X' object has no attribute 'a'"):
+ X().a
+
def test_slots_special(self):
# Testing __dict__ and __weakref__ in __slots__...
class D(object):
self.assertEqual(o.__str__(), '41')
self.assertEqual(o.__repr__(), 'A repr')
+ def test_repr_with_module_str_subclass(self):
+ # gh-98783
+ class StrSub(str):
+ pass
+ class Some:
+ pass
+ Some.__module__ = StrSub('example')
+ self.assertIsInstance(repr(Some), str) # should not crash
+ self.assertIsInstance(repr(Some()), str) # should not crash
+
def test_keyword_arguments(self):
# Testing keyword arguments to __init__, __call__...
def f(a): return a
self.assertIsInstance(d.values(), collections.abc.ValuesView)
self.assertIsInstance(d.values(), collections.abc.MappingView)
self.assertIsInstance(d.values(), collections.abc.Sized)
+ self.assertIsInstance(d.values(), collections.abc.Collection)
+ self.assertIsInstance(d.values(), collections.abc.Iterable)
+ self.assertIsInstance(d.values(), collections.abc.Container)
self.assertIsInstance(d.items(), collections.abc.ItemsView)
self.assertIsInstance(d.items(), collections.abc.MappingView)
return output.getvalue()
-if sys.flags.optimize:
+if dis.code_info.__doc__ is None:
code_info_consts = "0: None"
else:
code_info_consts = "0: 'Formatted details of methods, functions, or code.'"
out, err = self.run_embedded_interpreter("test_repeated_init_exec", code)
self.assertEqual(out, 'Tests passed\n' * INIT_LOOPS)
+ def test_simple_initialization_api(self):
+ # _testembed now uses Py_InitializeFromConfig by default
+ # This case specifically checks Py_Initialize(Ex) still works
+ out, err = self.run_embedded_interpreter("test_repeated_simple_init")
+ self.assertEqual(out, 'Finalized\n' * INIT_LOOPS)
+
def test_quickened_static_code_gets_unquickened_at_Py_FINALIZE(self):
# https://github.com/python/cpython/issues/92031
if not MS_WINDOWS:
paths[-1] = lib_dynload
else:
- # Include DLLs directory as well
- paths.insert(1, '.\\DLLs')
- for index, path in enumerate(paths):
- if index == 0:
- # Because we copy the DLLs into tmpdir as well, the zip file
- # entry in sys.path will be there. For a regular venv, it will
- # usually be in the home directory.
- paths[index] = os.path.join(tmpdir, os.path.basename(path))
- else:
- paths[index] = os.path.join(pyvenv_home, os.path.basename(path))
- paths[-1] = pyvenv_home
+ paths = [
+ os.path.join(tmpdir, os.path.basename(paths[0])),
+ pyvenv_home,
+ os.path.join(pyvenv_home, "Lib"),
+ ]
executable = self.test_exe
base_executable = os.path.join(pyvenv_home, os.path.basename(executable))
config['base_prefix'] = pyvenv_home
config['prefix'] = pyvenv_home
config['stdlib_dir'] = os.path.join(pyvenv_home, 'Lib')
- config['use_frozen_modules'] = not Py_DEBUG
+ config['use_frozen_modules'] = int(not Py_DEBUG)
else:
# cannot reliably assume stdlib_dir here because it
# depends too much on our build. But it ought to be found
config['stdlib_dir'] = self.IGNORE_CONFIG
- config['use_frozen_modules'] = not Py_DEBUG
+ config['use_frozen_modules'] = int(not Py_DEBUG)
env = self.copy_paths_by_env(config)
self.check_all_configs("test_init_compat_config", config,
from enum import Enum, IntEnum, StrEnum, EnumType, Flag, IntFlag, unique, auto
from enum import STRICT, CONFORM, EJECT, KEEP, _simple_enum, _test_simple_enum
from enum import verify, UNIQUE, CONTINUOUS, NAMED_FLAGS, ReprEnum
-from enum import member, nonmember
+from enum import member, nonmember, _iter_bits_lsb
from io import StringIO
from pickle import dumps, loads, PicklingError, HIGHEST_PROTOCOL
from test import support
for name in self.sunder_names + self.dunder_names + self.random_names:
self.assertFalse(enum._is_private('MyEnum', name), '%r is a private name?')
+ def test_iter_bits_lsb(self):
+ self.assertEqual(list(_iter_bits_lsb(7)), [1, 2, 4])
+ self.assertRaisesRegex(ValueError, '-8 is not a positive integer', list, _iter_bits_lsb(-8))
+
# for subclassing tests
def test_default_missing_with_wrong_type_value(self):
with self.assertRaisesRegex(
ValueError,
- "'RED' is not a valid TestFlag.Color",
+ "'RED' is not a valid ",
) as ctx:
self.MainEnum('RED')
self.assertIs(ctx.exception.__context__, None)
enum_type = Enum
-class TestPlainFlag(_EnumTests, _PlainOutputTests, unittest.TestCase):
+class TestPlainFlag(_EnumTests, _PlainOutputTests, _FlagTests, unittest.TestCase):
enum_type = Flag
enum_type = StrEnum
-class TestIntFlag(_EnumTests, _MinimalOutputTests, unittest.TestCase):
+class TestIntFlag(_EnumTests, _MinimalOutputTests, _FlagTests, unittest.TestCase):
enum_type = IntFlag
class enum_type(str, Enum): pass
-class TestMixedIntFlag(_EnumTests, _MixedOutputTests, unittest.TestCase):
+class TestMixedIntFlag(_EnumTests, _MixedOutputTests, _FlagTests, unittest.TestCase):
class enum_type(int, Flag): pass
triple = 3
value = 4
+ def test_negative_alias(self):
+ @verify(NAMED_FLAGS)
+ class Color(Flag):
+ RED = 1
+ GREEN = 2
+ BLUE = 4
+ WHITE = -1
+ # no error means success
+
+
class TestInternals(unittest.TestCase):
sunder_names = '_bad_', '_good_', '_what_ho_'
third = auto()
self.assertEqual([Dupes.first, Dupes.second, Dupes.third], list(Dupes))
+ def test_multiple_auto_on_line(self):
+ class Huh(Enum):
+ ONE = auto()
+ TWO = auto(), auto()
+ THREE = auto(), auto(), auto()
+ self.assertEqual(Huh.ONE.value, 1)
+ self.assertEqual(Huh.TWO.value, (2, 3))
+ self.assertEqual(Huh.THREE.value, (4, 5, 6))
+ #
+ class Hah(Enum):
+ def __new__(cls, value, abbr=None):
+ member = object.__new__(cls)
+ member._value_ = value
+ member.abbr = abbr or value[:3].lower()
+ return member
+ def _generate_next_value_(name, start, count, last):
+ return name
+ #
+ MONDAY = auto()
+ TUESDAY = auto()
+ WEDNESDAY = auto(), 'WED'
+ THURSDAY = auto(), 'Thu'
+ FRIDAY = auto()
+ self.assertEqual(Hah.MONDAY.value, 'MONDAY')
+ self.assertEqual(Hah.MONDAY.abbr, 'mon')
+ self.assertEqual(Hah.TUESDAY.value, 'TUESDAY')
+ self.assertEqual(Hah.TUESDAY.abbr, 'tue')
+ self.assertEqual(Hah.WEDNESDAY.value, 'WEDNESDAY')
+ self.assertEqual(Hah.WEDNESDAY.abbr, 'WED')
+ self.assertEqual(Hah.THURSDAY.value, 'THURSDAY')
+ self.assertEqual(Hah.THURSDAY.abbr, 'Thu')
+ self.assertEqual(Hah.FRIDAY.value, 'FRIDAY')
+ self.assertEqual(Hah.FRIDAY.abbr, 'fri')
+ #
+ class Huh(Enum):
+ def _generate_next_value_(name, start, count, last):
+ return count+1
+ ONE = auto()
+ TWO = auto(), auto()
+ THREE = auto(), auto(), auto()
+ self.assertEqual(Huh.ONE.value, 1)
+ self.assertEqual(Huh.TWO.value, (2, 2))
+ self.assertEqual(Huh.THREE.value, (3, 3, 3))
+
class TestEnumTypeSubclassing(unittest.TestCase):
pass
self.assertEqual(sys.exc_info(), (None, None, None))
+class TestExceptStar_WeirdLeafExceptions(ExceptStarTest):
+ # Test that except* works when leaf exceptions are
+ # unhashable or have a bad custom __eq__
+
+ class UnhashableExc(ValueError):
+ __hash__ = None
+
+ class AlwaysEqualExc(ValueError):
+ def __eq__(self, other):
+ return True
+
+ class NeverEqualExc(ValueError):
+ def __eq__(self, other):
+ return False
+
+ class BrokenEqualExc(ValueError):
+ def __eq__(self, other):
+ raise RuntimeError()
+
+ def setUp(self):
+ self.bad_types = [self.UnhashableExc,
+ self.AlwaysEqualExc,
+ self.NeverEqualExc,
+ self.BrokenEqualExc]
+
+ def except_type(self, eg, type):
+ match, rest = None, None
+ try:
+ try:
+ raise eg
+ except* type as e:
+ match = e
+ except Exception as e:
+ rest = e
+ return match, rest
+
+ def test_catch_unhashable_leaf_exception(self):
+ for Bad in self.bad_types:
+ with self.subTest(Bad):
+ eg = ExceptionGroup("eg", [TypeError(1), Bad(2)])
+ match, rest = self.except_type(eg, Bad)
+ self.assertExceptionIsLike(
+ match, ExceptionGroup("eg", [Bad(2)]))
+ self.assertExceptionIsLike(
+ rest, ExceptionGroup("eg", [TypeError(1)]))
+
+ def test_propagate_unhashable_leaf(self):
+ for Bad in self.bad_types:
+ with self.subTest(Bad):
+ eg = ExceptionGroup("eg", [TypeError(1), Bad(2)])
+ match, rest = self.except_type(eg, TypeError)
+ self.assertExceptionIsLike(
+ match, ExceptionGroup("eg", [TypeError(1)]))
+ self.assertExceptionIsLike(
+ rest, ExceptionGroup("eg", [Bad(2)]))
+
+ def test_catch_nothing_unhashable_leaf(self):
+ for Bad in self.bad_types:
+ with self.subTest(Bad):
+ eg = ExceptionGroup("eg", [TypeError(1), Bad(2)])
+ match, rest = self.except_type(eg, OSError)
+ self.assertIsNone(match)
+ self.assertExceptionIsLike(rest, eg)
+
+ def test_catch_everything_unhashable_leaf(self):
+ for Bad in self.bad_types:
+ with self.subTest(Bad):
+ eg = ExceptionGroup("eg", [TypeError(1), Bad(2)])
+ match, rest = self.except_type(eg, Exception)
+ self.assertExceptionIsLike(match, eg)
+ self.assertIsNone(rest)
+
+ def test_reraise_unhashable_leaf(self):
+ for Bad in self.bad_types:
+ with self.subTest(Bad):
+ eg = ExceptionGroup(
+ "eg", [TypeError(1), Bad(2), ValueError(3)])
+
+ try:
+ try:
+ raise eg
+ except* TypeError:
+ pass
+ except* Bad:
+ raise
+ except Exception as e:
+ exc = e
+
+ self.assertExceptionIsLike(
+ exc, ExceptionGroup("eg", [Bad(2), ValueError(3)]))
+
+
+class TestExceptStar_WeirdExceptionGroupSubclass(ExceptStarTest):
+ # Test that except* works with exception groups that are
+ # unhashable or have a bad custom __eq__
+
+ class UnhashableEG(ExceptionGroup):
+ __hash__ = None
+
+ def derive(self, excs):
+ return type(self)(self.message, excs)
+
+ class AlwaysEqualEG(ExceptionGroup):
+ def __eq__(self, other):
+ return True
+
+ def derive(self, excs):
+ return type(self)(self.message, excs)
+
+ class NeverEqualEG(ExceptionGroup):
+ def __eq__(self, other):
+ return False
+
+ def derive(self, excs):
+ return type(self)(self.message, excs)
+
+ class BrokenEqualEG(ExceptionGroup):
+ def __eq__(self, other):
+ raise RuntimeError()
+
+ def derive(self, excs):
+ return type(self)(self.message, excs)
+
+ def setUp(self):
+ self.bad_types = [self.UnhashableEG,
+ self.AlwaysEqualEG,
+ self.NeverEqualEG,
+ self.BrokenEqualEG]
+
+ def except_type(self, eg, type):
+ match, rest = None, None
+ try:
+ try:
+ raise eg
+ except* type as e:
+ match = e
+ except Exception as e:
+ rest = e
+ return match, rest
+
+ def test_catch_some_unhashable_exception_group_subclass(self):
+ for BadEG in self.bad_types:
+ with self.subTest(BadEG):
+ eg = BadEG("eg",
+ [TypeError(1),
+ BadEG("nested", [ValueError(2)])])
+
+ match, rest = self.except_type(eg, TypeError)
+ self.assertExceptionIsLike(match, BadEG("eg", [TypeError(1)]))
+ self.assertExceptionIsLike(rest,
+ BadEG("eg", [BadEG("nested", [ValueError(2)])]))
+
+ def test_catch_none_unhashable_exception_group_subclass(self):
+ for BadEG in self.bad_types:
+ with self.subTest(BadEG):
+
+ eg = BadEG("eg",
+ [TypeError(1),
+ BadEG("nested", [ValueError(2)])])
+
+ match, rest = self.except_type(eg, OSError)
+ self.assertIsNone(match)
+ self.assertExceptionIsLike(rest, eg)
+
+ def test_catch_all_unhashable_exception_group_subclass(self):
+ for BadEG in self.bad_types:
+ with self.subTest(BadEG):
+
+ eg = BadEG("eg",
+ [TypeError(1),
+ BadEG("nested", [ValueError(2)])])
+
+ match, rest = self.except_type(eg, Exception)
+ self.assertExceptionIsLike(match, eg)
+ self.assertIsNone(rest)
+
+ def test_reraise_unhashable_eg(self):
+ for BadEG in self.bad_types:
+ with self.subTest(BadEG):
+
+ eg = BadEG("eg",
+ [TypeError(1), ValueError(2),
+ BadEG("nested", [ValueError(3), OSError(4)])])
+
+ try:
+ try:
+ raise eg
+ except* ValueError:
+ pass
+ except* OSError:
+ raise
+ except Exception as e:
+ exc = e
+
+ self.assertExceptionIsLike(
+ exc, BadEG("eg", [TypeError(1),
+ BadEG("nested", [OSError(4)])]))
+
+
if __name__ == '__main__':
unittest.main()
beg = BaseExceptionGroup("beg", [ValueError(1), KeyboardInterrupt(2)])
self.assertIs(type(beg), BaseExceptionGroup)
- def test_EG_subclass_wraps_anything(self):
+ def test_EG_subclass_wraps_non_base_exceptions(self):
class MyEG(ExceptionGroup):
pass
self.assertIs(
type(MyEG("eg", [ValueError(12), TypeError(42)])),
MyEG)
- self.assertIs(
- type(MyEG("eg", [ValueError(12), KeyboardInterrupt(42)])),
- MyEG)
+
+ def test_EG_subclass_does_not_wrap_base_exceptions(self):
+ class MyEG(ExceptionGroup):
+ pass
+
+ msg = "Cannot nest BaseExceptions in 'MyEG'"
+ with self.assertRaisesRegex(TypeError, msg):
+ MyEG("eg", [ValueError(12), KeyboardInterrupt(42)])
+
+ def test_BEG_and_E_subclass_does_not_wrap_base_exceptions(self):
+ class MyEG(BaseExceptionGroup, ValueError):
+ pass
+
+ msg = "Cannot nest BaseExceptions in 'MyEG'"
+ with self.assertRaisesRegex(TypeError, msg):
+ MyEG("eg", [ValueError(12), KeyboardInterrupt(42)])
+
def test_BEG_subclass_wraps_anything(self):
class MyBEG(BaseExceptionGroup):
+-- InterruptedError EINTR
+-- IsADirectoryError EISDIR
+-- NotADirectoryError ENOTDIR
- +-- PermissionError EACCES, EPERM
+ +-- PermissionError EACCES, EPERM, ENOTCAPABLE
+-- ProcessLookupError ESRCH
+-- TimeoutError ETIMEDOUT
"""
continue
excname, _, errnames = line.partition(' ')
for errname in filter(None, errnames.strip().split(', ')):
+ if errname == "ENOTCAPABLE" and not hasattr(errno, errname):
+ continue
_map[getattr(errno, errname)] = getattr(builtins, excname)
return _map
_map = _make_map(_pep_map)
othercodes = set(errno.errorcode) - set(self._map)
for errcode in othercodes:
e = OSError(errcode, "Some message")
- self.assertIs(type(e), OSError)
+ self.assertIs(type(e), OSError, repr(e))
def test_try_except(self):
filename = "some_hopefully_non_existing_file"
import gc
import re
import sys
+import textwrap
+import threading
import types
import unittest
import weakref
from test import support
+from test.support import threading_helper
+from test.support.script_helper import assert_python_ok
class ClearTest(unittest.TestCase):
class TestIncompleteFrameAreInvisible(unittest.TestCase):
def test_issue95818(self):
- #See GH-95818 for details
- import gc
- self.addCleanup(gc.set_threshold, *gc.get_threshold())
+ # See GH-95818 for details
+ code = textwrap.dedent(f"""
+ import gc
- gc.set_threshold(1,1,1)
- class GCHello:
- def __del__(self):
- print("Destroyed from gc")
-
- def gen():
- yield
+ gc.set_threshold(1,1,1)
+ class GCHello:
+ def __del__(self):
+ print("Destroyed from gc")
- fd = open(__file__)
- l = [fd, GCHello()]
- l.append(l)
- del fd
- del l
- gen()
+ def gen():
+ yield
+ fd = open({__file__!r})
+ l = [fd, GCHello()]
+ l.append(l)
+ del fd
+ del l
+ gen()
+ """)
+ assert_python_ok("-c", code)
@support.cpython_only
def test_sneaky_frame_object(self):
if old_enabled:
gc.enable()
+ @support.cpython_only
+ @threading_helper.requires_working_threading()
+ def test_sneaky_frame_object_teardown(self):
+
+ class SneakyDel:
+ def __del__(self):
+ """
+ Stash a reference to the entire stack for walking later.
+
+ It may look crazy, but you'd be surprised how common this is
+ when using a test runner (like pytest). The typical recipe is:
+ ResourceWarning + -Werror + a custom sys.unraisablehook.
+ """
+ nonlocal sneaky_frame_object
+ sneaky_frame_object = sys._getframe()
+
+ class SneakyThread(threading.Thread):
+ """
+ A separate thread isn't needed to make this code crash, but it does
+ make crashes more consistent, since it means sneaky_frame_object is
+ backed by freed memory after the thread completes!
+ """
+
+ def run(self):
+ """Run SneakyDel.__del__ as this frame is popped."""
+ ref = SneakyDel()
+
+ sneaky_frame_object = None
+ t = SneakyThread()
+ t.start()
+ t.join()
+ # sneaky_frame_object can be anything, really, but it's crucial that
+ # SneakyThread.run's frame isn't anywhere on the stack while it's being
+ # torn down:
+ self.assertIsNotNone(sneaky_frame_object)
+ while sneaky_frame_object is not None:
+ self.assertIsNot(
+ sneaky_frame_object.f_code, SneakyThread.run.__code__
+ )
+ sneaky_frame_object = sneaky_frame_object.f_back
if __name__ == "__main__":
unittest.main()
self.assertEqual(repr(list[str]), 'list[str]')
self.assertEqual(repr(list[()]), 'list[()]')
self.assertEqual(repr(tuple[int, ...]), 'tuple[int, ...]')
- x1 = tuple[
- tuple( # Effectively the same as starring; TODO
- tuple[int]
- )
- ]
+ x1 = tuple[*tuple[int]]
self.assertEqual(repr(x1), 'tuple[*tuple[int]]')
- x2 = tuple[
- tuple( # Ditto TODO
- tuple[int, str]
- )
- ]
+ x2 = tuple[*tuple[int, str]]
self.assertEqual(repr(x2), 'tuple[*tuple[int, str]]')
- x3 = tuple[
- tuple( # Ditto TODO
- tuple[int, ...]
- )
- ]
+ x3 = tuple[*tuple[int, ...]]
self.assertEqual(repr(x3), 'tuple[*tuple[int, ...]]')
self.assertTrue(repr(MyList[int]).endswith('.BaseTest.test_repr.<locals>.MyList[int]'))
self.assertEqual(repr(list[str]()), '[]') # instances should keep their normal repr
self.assertEqual(L5.__args__, (Callable[[K, V], K],))
self.assertEqual(L5.__parameters__, (K, V))
- T1 = tuple[
- tuple( # Ditto TODO
- tuple[int]
- )
- ]
+ T1 = tuple[*tuple[int]]
self.assertEqual(
T1.__args__,
- tuple( # Ditto TODO
- tuple[int]
- )
+ (*tuple[int],),
)
self.assertEqual(T1.__parameters__, ())
- T2 = tuple[
- tuple( # Ditto TODO
- tuple[T]
- )
- ]
+ T2 = tuple[*tuple[T]]
self.assertEqual(
T2.__args__,
- tuple( # Ditto TODO
- tuple[T]
- )
+ (*tuple[T],),
)
self.assertEqual(T2.__parameters__, (T,))
- T4 = tuple[
- tuple( # Ditto TODO
- tuple[int, str]
- )
- ]
+ T4 = tuple[*tuple[int, str]]
self.assertEqual(
T4.__args__,
- tuple( # Ditto TODO
- tuple[int, str]
- )
+ (*tuple[int, str],),
)
self.assertEqual(T4.__parameters__, ())
self.assertEqual(list[int], list[int])
self.assertEqual(dict[str, int], dict[str, int])
self.assertEqual((*tuple[int],)[0], (*tuple[int],)[0])
- self.assertEqual(
- tuple[
- tuple( # Effectively the same as starring; TODO
- tuple[int]
- )
- ],
- tuple[
- tuple( # Ditto TODO
- tuple[int]
- )
- ]
- )
+ self.assertEqual(tuple[*tuple[int]], tuple[*tuple[int]])
self.assertNotEqual(dict[str, int], dict[str, str])
self.assertNotEqual(list, list[int])
self.assertNotEqual(list[int], list)
actual = getpath(ns, expected)
self.assertEqual(expected, actual)
+ def test_no_dlls_win32(self):
+ "Test a layout on Windows with no DLLs directory."
+ ns = MockNTNamespace(
+ argv0=r"C:\Python\python.exe",
+ real_executable=r"C:\Python\python.exe",
+ )
+ ns.add_known_xfile(r"C:\Python\python.exe")
+ ns.add_known_file(r"C:\Python\Lib\os.py")
+ expected = dict(
+ executable=r"C:\Python\python.exe",
+ base_executable=r"C:\Python\python.exe",
+ prefix=r"C:\Python",
+ exec_prefix=r"C:\Python",
+ module_search_paths_set=1,
+ module_search_paths=[
+ r"C:\Python\python98.zip",
+ r"C:\Python\Lib",
+ r"C:\Python",
+ ],
+ )
+ actual = getpath(ns, expected)
+ self.assertEqual(expected, actual)
+
def test_normal_posix(self):
"Test a 'standard' install layout on *nix"
ns = MockPosixNamespace(
actual = getpath(ns, expected)
self.assertEqual(expected, actual)
+ def test_venv_non_installed_zip_path_posix(self):
+ "Test a venv created from non-installed python has correct zip path."""
+ ns = MockPosixNamespace(
+ argv0="/venv/bin/python",
+ PREFIX="/usr",
+ ENV_PATH="/venv/bin:/usr/bin",
+ )
+ ns.add_known_xfile("/path/to/non-installed/bin/python")
+ ns.add_known_xfile("/venv/bin/python")
+ ns.add_known_link("/venv/bin/python",
+ "/path/to/non-installed/bin/python")
+ ns.add_known_file("/path/to/non-installed/lib/python9.8/os.py")
+ ns.add_known_dir("/path/to/non-installed/lib/python9.8/lib-dynload")
+ ns.add_known_file("/venv/pyvenv.cfg", [
+ r"home = /path/to/non-installed"
+ ])
+ expected = dict(
+ executable="/venv/bin/python",
+ prefix="/path/to/non-installed",
+ exec_prefix="/path/to/non-installed",
+ base_executable="/path/to/non-installed/bin/python",
+ base_prefix="/path/to/non-installed",
+ base_exec_prefix="/path/to/non-installed",
+ module_search_paths_set=1,
+ module_search_paths=[
+ "/path/to/non-installed/lib/python98.zip",
+ "/path/to/non-installed/lib/python9.8",
+ "/path/to/non-installed/lib/python9.8/lib-dynload",
+ ],
+ )
+ actual = getpath(ns, expected)
+ self.assertEqual(expected, actual)
+
+ def test_venv_changed_name_copy_posix(self):
+ "Test a venv --copies layout on *nix that lacks a distributed 'python'"
+ ns = MockPosixNamespace(
+ argv0="python",
+ PREFIX="/usr",
+ ENV_PATH="/venv/bin:/usr/bin",
+ )
+ ns.add_known_xfile("/usr/bin/python9")
+ ns.add_known_xfile("/venv/bin/python")
+ ns.add_known_file("/usr/lib/python9.8/os.py")
+ ns.add_known_dir("/usr/lib/python9.8/lib-dynload")
+ ns.add_known_file("/venv/pyvenv.cfg", [
+ r"home = /usr/bin"
+ ])
+ expected = dict(
+ executable="/venv/bin/python",
+ prefix="/usr",
+ exec_prefix="/usr",
+ base_executable="/usr/bin/python9",
+ base_prefix="/usr",
+ base_exec_prefix="/usr",
+ module_search_paths_set=1,
+ module_search_paths=[
+ "/usr/lib/python98.zip",
+ "/usr/lib/python9.8",
+ "/usr/lib/python9.8/lib-dynload",
+ ],
+ )
+ actual = getpath(ns, expected)
+ self.assertEqual(expected, actual)
+
def test_symlink_normal_posix(self):
"Test a 'standard' install layout via symlink on *nix"
ns = MockPosixNamespace(
import datetime
import threading
from unittest import mock
-from io import BytesIO
+from io import BytesIO, StringIO
import unittest
from test import support
match = self.HTTPResponseMatch.search(response)
self.assertIsNotNone(match)
+ def test_unprintable_not_logged(self):
+ # We call the method from the class directly as our Socketless
+ # Handler subclass overrode it... nice for everything BUT this test.
+ self.handler.client_address = ('127.0.0.1', 1337)
+ log_message = BaseHTTPRequestHandler.log_message
+ with mock.patch.object(sys, 'stderr', StringIO()) as fake_stderr:
+ log_message(self.handler, '/foo')
+ log_message(self.handler, '/\033bar\000\033')
+ log_message(self.handler, '/spam %s.', 'a')
+ log_message(self.handler, '/spam %s.', '\033\x7f\x9f\xa0beans')
+ log_message(self.handler, '"GET /foo\\b"ar\007 HTTP/1.0"')
+ stderr = fake_stderr.getvalue()
+ self.assertNotIn('\033', stderr) # non-printable chars are caught.
+ self.assertNotIn('\000', stderr) # non-printable chars are caught.
+ lines = stderr.splitlines()
+ self.assertIn('/foo', lines[0])
+ self.assertIn(r'/\x1bbar\x00\x1b', lines[1])
+ self.assertIn('/spam a.', lines[2])
+ self.assertIn('/spam \\x1b\\x7f\\x9f\xa0beans.', lines[3])
+ self.assertIn(r'"GET /foo\\b"ar\x07 HTTP/1.0"', lines[4])
+
def test_http_1_1(self):
result = self.send_typical_request(b'GET / HTTP/1.1\r\n\r\n')
self.verify_http_server_response(result[0])
+import gc
import importlib
import importlib.util
import os
self.assertEqual(mod.x, 42)
+ @support.cpython_only
+ def test_create_builtin_subinterp(self):
+ # gh-99578: create_builtin() behavior changes after the creation of the
+ # first sub-interpreter. Test both code paths, before and after the
+ # creation of a sub-interpreter. Previously, create_builtin() had
+ # a reference leak after the creation of the first sub-interpreter.
+
+ import builtins
+ create_builtin = support.get_attribute(_imp, "create_builtin")
+ class Spec:
+ name = "builtins"
+ spec = Spec()
+
+ def check_get_builtins():
+ refcnt = sys.getrefcount(builtins)
+ mod = _imp.create_builtin(spec)
+ self.assertIs(mod, builtins)
+ self.assertEqual(sys.getrefcount(builtins), refcnt + 1)
+ # Check that a GC collection doesn't crash
+ gc.collect()
+
+ check_get_builtins()
+
+ ret = support.run_in_subinterp("import builtins")
+ self.assertEqual(ret, 0)
+
+ check_get_builtins()
+
+
class ReloadTests(unittest.TestCase):
"""Very basic tests to make sure that imp.reload() operates just like
import pathlib
import tempfile
import textwrap
+import functools
import contextlib
from test.support.os_helper import FS_NONASCII
# Add self.zip_name to the front of sys.path.
self.resources = contextlib.ExitStack()
self.addCleanup(self.resources.close)
+
+
+def parameterize(*args_set):
+ """Run test method with a series of parameters."""
+
+ def wrapper(func):
+ @functools.wraps(func)
+ def _inner(self):
+ for args in args_set:
+ with self.subTest(**args):
+ func(self, **args)
+
+ return _inner
+
+ return wrapper
import re
import json
import pickle
-import textwrap
import unittest
import warnings
import importlib.metadata
Distribution,
EntryPoint,
PackageNotFoundError,
+ _unique,
distributions,
entry_points,
metadata,
def test_new_style_classes(self):
self.assertIsInstance(Distribution, type)
+ @fixtures.parameterize(
+ dict(name=None),
+ dict(name=''),
+ )
+ def test_invalid_inputs_to_from_name(self, name):
+ with self.assertRaises(Exception):
+ Distribution.from_name(name)
+
class ImportTests(fixtures.DistInfoPkg, unittest.TestCase):
def test_import_nonexistent_module(self):
class NameNormalizationTests(fixtures.OnSysPath, fixtures.SiteDir, unittest.TestCase):
@staticmethod
- def pkg_with_dashes(site_dir):
+ def make_pkg(name):
"""
- Create minimal metadata for a package with dashes
- in the name (and thus underscores in the filename).
+ Create minimal metadata for a dist-info package with
+ the indicated name on the file system.
"""
- metadata_dir = site_dir / 'my_pkg.dist-info'
- metadata_dir.mkdir()
- metadata = metadata_dir / 'METADATA'
- with metadata.open('w', encoding='utf-8') as strm:
- strm.write('Version: 1.0\n')
- return 'my-pkg'
+ return {
+ f'{name}.dist-info': {
+ 'METADATA': 'VERSION: 1.0\n',
+ },
+ }
def test_dashes_in_dist_name_found_as_underscores(self):
"""
For a package with a dash in the name, the dist-info metadata
uses underscores in the name. Ensure the metadata loads.
"""
- pkg_name = self.pkg_with_dashes(self.site_dir)
- assert version(pkg_name) == '1.0'
-
- @staticmethod
- def pkg_with_mixed_case(site_dir):
- """
- Create minimal metadata for a package with mixed case
- in the name.
- """
- metadata_dir = site_dir / 'CherryPy.dist-info'
- metadata_dir.mkdir()
- metadata = metadata_dir / 'METADATA'
- with metadata.open('w', encoding='utf-8') as strm:
- strm.write('Version: 1.0\n')
- return 'CherryPy'
+ fixtures.build_files(self.make_pkg('my_pkg'), self.site_dir)
+ assert version('my-pkg') == '1.0'
def test_dist_name_found_as_any_case(self):
"""
Ensure the metadata loads when queried with any case.
"""
- pkg_name = self.pkg_with_mixed_case(self.site_dir)
+ pkg_name = 'CherryPy'
+ fixtures.build_files(self.make_pkg(pkg_name), self.site_dir)
assert version(pkg_name) == '1.0'
assert version(pkg_name.lower()) == '1.0'
assert version(pkg_name.upper()) == '1.0'
+ def test_unique_distributions(self):
+ """
+ Two distributions varying only by non-normalized name on
+ the file system should resolve as the same.
+ """
+ fixtures.build_files(self.make_pkg('abc'), self.site_dir)
+ before = list(_unique(distributions()))
+
+ alt_site_dir = self.fixtures.enter_context(fixtures.tempdir())
+ self.fixtures.enter_context(self.add_sys_path(alt_site_dir))
+ fixtures.build_files(self.make_pkg('ABC'), alt_site_dir)
+ after = list(_unique(distributions()))
+
+ assert len(after) == len(before)
+
class NonASCIITests(fixtures.OnSysPath, fixtures.SiteDir, unittest.TestCase):
@staticmethod
Create minimal metadata for a package with non-ASCII in
the description.
"""
- metadata_dir = site_dir / 'portend.dist-info'
- metadata_dir.mkdir()
- metadata = metadata_dir / 'METADATA'
- with metadata.open('w', encoding='utf-8') as fp:
- fp.write('Description: pôrˈtend')
+ contents = {
+ 'portend.dist-info': {
+ 'METADATA': 'Description: pôrˈtend',
+ },
+ }
+ fixtures.build_files(contents, site_dir)
return 'portend'
@staticmethod
Create minimal metadata for an egg-info package with
non-ASCII in the description.
"""
- metadata_dir = site_dir / 'portend.dist-info'
- metadata_dir.mkdir()
- metadata = metadata_dir / 'METADATA'
- with metadata.open('w', encoding='utf-8') as fp:
- fp.write(
- textwrap.dedent(
- """
+ contents = {
+ 'portend.dist-info': {
+ 'METADATA': """
Name: portend
- pôrˈtend
- """
- ).strip()
- )
+ pôrˈtend""",
+ },
+ }
+ fixtures.build_files(contents, site_dir)
return 'portend'
def test_metadata_loads(self):
self.assertIn(ep.dist.name, ('distinfo-pkg', 'egginfo-pkg'))
self.assertEqual(ep.dist.version, "1.0.0")
- def test_entry_points_unique_packages(self):
+ def test_entry_points_unique_packages_normalized(self):
"""
Entry points should only be exposed for the first package
- on sys.path with a given name.
+ on sys.path with a given name (even when normalized).
"""
alt_site_dir = self.fixtures.enter_context(fixtures.tempdir())
self.fixtures.enter_context(self.add_sys_path(alt_site_dir))
alt_pkg = {
- "distinfo_pkg-1.1.0.dist-info": {
+ "DistInfo_pkg-1.1.0.dist-info": {
"METADATA": """
Name: distinfo-pkg
Version: 1.1.0
"""Decorator to protect sys.dont_write_bytecode from mutation and to skip
tests that require it to be set to False."""
if sys.dont_write_bytecode:
- return lambda *args, **kwargs: None
+ return unittest.skip("relies on writing bytecode")(fxn)
@functools.wraps(fxn)
def wrapper(*args, **kwargs):
original = sys.dont_write_bytecode
self.assertEqual(inspect.get_annotations(isa.MyClassWithLocalAnnotations, eval_str=True), {'x': int})
+class TestFormatAnnotation(unittest.TestCase):
+ def test_typing_replacement(self):
+ from test.typinganndata.ann_module9 import ann, ann1
+ self.assertEqual(inspect.formatannotation(ann), 'Union[List[str], int]')
+ self.assertEqual(inspect.formatannotation(ann1), 'Union[List[testModule.typing.A], int]')
+
+
class TestIsDataDescriptor(unittest.TestCase):
def test_custom_descriptors(self):
self.assertEqual(str(inspect.signature(foo)), '(a)')
def test_signature_on_decorated(self):
- import functools
-
def decorator(func):
@functools.wraps(func)
def wrapper(*args, **kwargs) -> int:
def bar(self, a, b):
pass
+ bar = decorator(Foo().bar)
+
self.assertEqual(self.signature(Foo.bar),
((('self', ..., ..., "positional_or_keyword"),
('a', ..., ..., "positional_or_keyword"),
# from "func" to "wrapper", hence no
# return_annotation
+ self.assertEqual(self.signature(bar),
+ ((('a', ..., ..., "positional_or_keyword"),
+ ('b', ..., ..., "positional_or_keyword")),
+ ...))
+
# Test that we handle method wrappers correctly
def decorator(func):
@functools.wraps(func)
open('non-existent', 'r', opener=badopener)
self.assertEqual(str(cm.exception), 'opener returned -2')
+ def test_opener_invalid_fd(self):
+ # Check that OSError is raised with error code EBADF if the
+ # opener returns an invalid file descriptor (see gh-82212).
+ fd = os_helper.make_bad_fd()
+ with self.assertRaises(OSError) as cm:
+ self.open('foo', opener=lambda name, flags: fd)
+ self.assertEqual(cm.exception.errno, errno.EBADF)
+
def test_fileio_closefd(self):
# Issue #4841
with self.open(__file__, 'rb') as f1, \
self.assertEqual(decoder.decode(b"\r\r\n"), "\r\r\n")
class CIncrementalNewlineDecoderTest(IncrementalNewlineDecoderTest):
- pass
+ @support.cpython_only
+ def test_uninitialized(self):
+ uninitialized = self.IncrementalNewlineDecoder.__new__(
+ self.IncrementalNewlineDecoder)
+ self.assertRaises(ValueError, uninitialized.decode, b'bar')
+ self.assertRaises(ValueError, uninitialized.getstate)
+ self.assertRaises(ValueError, uninitialized.setstate, (b'foo', 0))
+ self.assertRaises(ValueError, uninitialized.reset)
+
class PyIncrementalNewlineDecoderTest(IncrementalNewlineDecoderTest):
pass
self.assertRaises(IndexError, self.ipv6_scoped_network.__getitem__, 1 << 64)
def testGetitem(self):
- # http://code.google.com/p/ipaddr-py/issues/detail?id=15
+ # https://code.google.com/p/ipaddr-py/issues/detail?id=15
addr = ipaddress.IPv4Network('172.31.255.128/255.255.255.240')
self.assertEqual(28, addr.prefixlen)
addr_list = list(addr)
self.assertEqual(False, ipaddress.ip_address('128.0.0.0').is_loopback)
self.assertEqual(True, ipaddress.ip_network('0.0.0.0').is_unspecified)
+ def testPrivateNetworks(self):
+ self.assertEqual(False, ipaddress.ip_network("0.0.0.0/0").is_private)
+ self.assertEqual(False, ipaddress.ip_network("1.0.0.0/8").is_private)
+
+ self.assertEqual(True, ipaddress.ip_network("0.0.0.0/8").is_private)
+ self.assertEqual(True, ipaddress.ip_network("10.0.0.0/8").is_private)
+ self.assertEqual(True, ipaddress.ip_network("127.0.0.0/8").is_private)
+ self.assertEqual(True, ipaddress.ip_network("169.254.0.0/16").is_private)
+ self.assertEqual(True, ipaddress.ip_network("172.16.0.0/12").is_private)
+ self.assertEqual(True, ipaddress.ip_network("192.0.0.0/29").is_private)
+ self.assertEqual(True, ipaddress.ip_network("192.0.0.170/31").is_private)
+ self.assertEqual(True, ipaddress.ip_network("192.0.2.0/24").is_private)
+ self.assertEqual(True, ipaddress.ip_network("192.168.0.0/16").is_private)
+ self.assertEqual(True, ipaddress.ip_network("198.18.0.0/15").is_private)
+ self.assertEqual(True, ipaddress.ip_network("198.51.100.0/24").is_private)
+ self.assertEqual(True, ipaddress.ip_network("203.0.113.0/24").is_private)
+ self.assertEqual(True, ipaddress.ip_network("240.0.0.0/4").is_private)
+ self.assertEqual(True, ipaddress.ip_network("255.255.255.255/32").is_private)
+
+ self.assertEqual(False, ipaddress.ip_network("::/0").is_private)
+ self.assertEqual(False, ipaddress.ip_network("::ff/128").is_private)
+
+ self.assertEqual(True, ipaddress.ip_network("::1/128").is_private)
+ self.assertEqual(True, ipaddress.ip_network("::/128").is_private)
+ self.assertEqual(True, ipaddress.ip_network("::ffff:0:0/96").is_private)
+ self.assertEqual(True, ipaddress.ip_network("100::/64").is_private)
+ self.assertEqual(True, ipaddress.ip_network("2001::/23").is_private)
+ self.assertEqual(True, ipaddress.ip_network("2001:2::/48").is_private)
+ self.assertEqual(True, ipaddress.ip_network("2001:db8::/32").is_private)
+ self.assertEqual(True, ipaddress.ip_network("2001:10::/28").is_private)
+ self.assertEqual(True, ipaddress.ip_network("fc00::/7").is_private)
+ self.assertEqual(True, ipaddress.ip_network("fe80::/10").is_private)
+
def testReservedIpv6(self):
self.assertEqual(True, ipaddress.ip_network('ffff::').is_multicast)
def __iter__(self):
raise ZeroDivisionError
+class CallableIterClass:
+ def __init__(self):
+ self.i = 0
+ def __call__(self):
+ i = self.i
+ self.i = i + 1
+ if i > 100:
+ raise IndexError # Emergency stop
+ return i
+
# Main test suite
class TestCase(unittest.TestCase):
# Test two-argument iter() with callable instance
def test_iter_callable(self):
- class C:
- def __init__(self):
- self.i = 0
- def __call__(self):
- i = self.i
- self.i = i + 1
- if i > 100:
- raise IndexError # Emergency stop
- return i
- self.check_iterator(iter(C(), 10), list(range(10)), pickle=False)
+ self.check_iterator(iter(CallableIterClass(), 10), list(range(10)), pickle=True)
# Test two-argument iter() with function
def test_iter_function(self):
self.assertRaises(TypeError, cycle, 5)
self.assertEqual(list(islice(cycle(gen3()),10)), [0,1,2,0,1,2,0,1,2,0])
+ def test_cycle_copy_pickle(self):
# check copy, deepcopy, pickle
c = cycle('abc')
self.assertEqual(next(c), 'a')
d = pickle.loads(p) # rebuild the cycle object
self.assertEqual(take(20, d), list('cdeabcdeabcdeabcdeab'))
+ def test_cycle_unpickle_compat(self):
+ testcases = [
+ b'citertools\ncycle\n(c__builtin__\niter\n((lI1\naI2\naI3\natRI1\nbtR((lI1\naI0\ntb.',
+ b'citertools\ncycle\n(c__builtin__\niter\n(](K\x01K\x02K\x03etRK\x01btR(]K\x01aK\x00tb.',
+ b'\x80\x02citertools\ncycle\nc__builtin__\niter\n](K\x01K\x02K\x03e\x85RK\x01b\x85R]K\x01aK\x00\x86b.',
+ b'\x80\x03citertools\ncycle\ncbuiltins\niter\n](K\x01K\x02K\x03e\x85RK\x01b\x85R]K\x01aK\x00\x86b.',
+ b'\x80\x04\x95=\x00\x00\x00\x00\x00\x00\x00\x8c\titertools\x8c\x05cycle\x93\x8c\x08builtins\x8c\x04iter\x93](K\x01K\x02K\x03e\x85RK\x01b\x85R]K\x01aK\x00\x86b.',
+
+ b'citertools\ncycle\n(c__builtin__\niter\n((lp0\nI1\naI2\naI3\natRI1\nbtR(g0\nI1\ntb.',
+ b'citertools\ncycle\n(c__builtin__\niter\n(]q\x00(K\x01K\x02K\x03etRK\x01btR(h\x00K\x01tb.',
+ b'\x80\x02citertools\ncycle\nc__builtin__\niter\n]q\x00(K\x01K\x02K\x03e\x85RK\x01b\x85Rh\x00K\x01\x86b.',
+ b'\x80\x03citertools\ncycle\ncbuiltins\niter\n]q\x00(K\x01K\x02K\x03e\x85RK\x01b\x85Rh\x00K\x01\x86b.',
+ b'\x80\x04\x95<\x00\x00\x00\x00\x00\x00\x00\x8c\titertools\x8c\x05cycle\x93\x8c\x08builtins\x8c\x04iter\x93]\x94(K\x01K\x02K\x03e\x85RK\x01b\x85Rh\x00K\x01\x86b.',
+
+ b'citertools\ncycle\n(c__builtin__\niter\n((lI1\naI2\naI3\natRI1\nbtR((lI1\naI00\ntb.',
+ b'citertools\ncycle\n(c__builtin__\niter\n(](K\x01K\x02K\x03etRK\x01btR(]K\x01aI00\ntb.',
+ b'\x80\x02citertools\ncycle\nc__builtin__\niter\n](K\x01K\x02K\x03e\x85RK\x01b\x85R]K\x01a\x89\x86b.',
+ b'\x80\x03citertools\ncycle\ncbuiltins\niter\n](K\x01K\x02K\x03e\x85RK\x01b\x85R]K\x01a\x89\x86b.',
+ b'\x80\x04\x95<\x00\x00\x00\x00\x00\x00\x00\x8c\titertools\x8c\x05cycle\x93\x8c\x08builtins\x8c\x04iter\x93](K\x01K\x02K\x03e\x85RK\x01b\x85R]K\x01a\x89\x86b.',
+
+ b'citertools\ncycle\n(c__builtin__\niter\n((lp0\nI1\naI2\naI3\natRI1\nbtR(g0\nI01\ntb.',
+ b'citertools\ncycle\n(c__builtin__\niter\n(]q\x00(K\x01K\x02K\x03etRK\x01btR(h\x00I01\ntb.',
+ b'\x80\x02citertools\ncycle\nc__builtin__\niter\n]q\x00(K\x01K\x02K\x03e\x85RK\x01b\x85Rh\x00\x88\x86b.',
+ b'\x80\x03citertools\ncycle\ncbuiltins\niter\n]q\x00(K\x01K\x02K\x03e\x85RK\x01b\x85Rh\x00\x88\x86b.',
+ b'\x80\x04\x95;\x00\x00\x00\x00\x00\x00\x00\x8c\titertools\x8c\x05cycle\x93\x8c\x08builtins\x8c\x04iter\x93]\x94(K\x01K\x02K\x03e\x85RK\x01b\x85Rh\x00\x88\x86b.',
+ ]
+ assert len(testcases) == 20
+ for t in testcases:
+ it = pickle.loads(t)
+ self.assertEqual(take(10, it), [2, 3, 1, 2, 3, 1, 2, 3, 1, 2])
+
def test_cycle_setstate(self):
# Verify both modes for restoring state
# 2007-10-05
JSONDOCS = [
- # http://json.org/JSON_checker/test/fail1.json
+ # https://json.org/JSON_checker/test/fail1.json
'"A JSON payload should be an object or array, not a string."',
- # http://json.org/JSON_checker/test/fail2.json
+ # https://json.org/JSON_checker/test/fail2.json
'["Unclosed array"',
- # http://json.org/JSON_checker/test/fail3.json
+ # https://json.org/JSON_checker/test/fail3.json
'{unquoted_key: "keys must be quoted"}',
- # http://json.org/JSON_checker/test/fail4.json
+ # https://json.org/JSON_checker/test/fail4.json
'["extra comma",]',
- # http://json.org/JSON_checker/test/fail5.json
+ # https://json.org/JSON_checker/test/fail5.json
'["double extra comma",,]',
- # http://json.org/JSON_checker/test/fail6.json
+ # https://json.org/JSON_checker/test/fail6.json
'[ , "<-- missing value"]',
- # http://json.org/JSON_checker/test/fail7.json
+ # https://json.org/JSON_checker/test/fail7.json
'["Comma after the close"],',
- # http://json.org/JSON_checker/test/fail8.json
+ # https://json.org/JSON_checker/test/fail8.json
'["Extra close"]]',
- # http://json.org/JSON_checker/test/fail9.json
+ # https://json.org/JSON_checker/test/fail9.json
'{"Extra comma": true,}',
- # http://json.org/JSON_checker/test/fail10.json
+ # https://json.org/JSON_checker/test/fail10.json
'{"Extra value after close": true} "misplaced quoted value"',
- # http://json.org/JSON_checker/test/fail11.json
+ # https://json.org/JSON_checker/test/fail11.json
'{"Illegal expression": 1 + 2}',
- # http://json.org/JSON_checker/test/fail12.json
+ # https://json.org/JSON_checker/test/fail12.json
'{"Illegal invocation": alert()}',
- # http://json.org/JSON_checker/test/fail13.json
+ # https://json.org/JSON_checker/test/fail13.json
'{"Numbers cannot have leading zeroes": 013}',
- # http://json.org/JSON_checker/test/fail14.json
+ # https://json.org/JSON_checker/test/fail14.json
'{"Numbers cannot be hex": 0x14}',
- # http://json.org/JSON_checker/test/fail15.json
+ # https://json.org/JSON_checker/test/fail15.json
'["Illegal backslash escape: \\x15"]',
- # http://json.org/JSON_checker/test/fail16.json
+ # https://json.org/JSON_checker/test/fail16.json
'[\\naked]',
- # http://json.org/JSON_checker/test/fail17.json
+ # https://json.org/JSON_checker/test/fail17.json
'["Illegal backslash escape: \\017"]',
- # http://json.org/JSON_checker/test/fail18.json
+ # https://json.org/JSON_checker/test/fail18.json
'[[[[[[[[[[[[[[[[[[[["Too deep"]]]]]]]]]]]]]]]]]]]]',
- # http://json.org/JSON_checker/test/fail19.json
+ # https://json.org/JSON_checker/test/fail19.json
'{"Missing colon" null}',
- # http://json.org/JSON_checker/test/fail20.json
+ # https://json.org/JSON_checker/test/fail20.json
'{"Double colon":: null}',
- # http://json.org/JSON_checker/test/fail21.json
+ # https://json.org/JSON_checker/test/fail21.json
'{"Comma instead of colon", null}',
- # http://json.org/JSON_checker/test/fail22.json
+ # https://json.org/JSON_checker/test/fail22.json
'["Colon instead of comma": false]',
- # http://json.org/JSON_checker/test/fail23.json
+ # https://json.org/JSON_checker/test/fail23.json
'["Bad value", truth]',
- # http://json.org/JSON_checker/test/fail24.json
+ # https://json.org/JSON_checker/test/fail24.json
"['single quote']",
- # http://json.org/JSON_checker/test/fail25.json
+ # https://json.org/JSON_checker/test/fail25.json
'["\ttab\tcharacter\tin\tstring\t"]',
- # http://json.org/JSON_checker/test/fail26.json
+ # https://json.org/JSON_checker/test/fail26.json
'["tab\\ character\\ in\\ string\\ "]',
- # http://json.org/JSON_checker/test/fail27.json
+ # https://json.org/JSON_checker/test/fail27.json
'["line\nbreak"]',
- # http://json.org/JSON_checker/test/fail28.json
+ # https://json.org/JSON_checker/test/fail28.json
'["line\\\nbreak"]',
- # http://json.org/JSON_checker/test/fail29.json
+ # https://json.org/JSON_checker/test/fail29.json
'[0e]',
- # http://json.org/JSON_checker/test/fail30.json
+ # https://json.org/JSON_checker/test/fail30.json
'[0e+]',
- # http://json.org/JSON_checker/test/fail31.json
+ # https://json.org/JSON_checker/test/fail31.json
'[0e+-1]',
- # http://json.org/JSON_checker/test/fail32.json
+ # https://json.org/JSON_checker/test/fail32.json
'{"Comma instead if closing brace": true,',
- # http://json.org/JSON_checker/test/fail33.json
+ # https://json.org/JSON_checker/test/fail33.json
'["mismatch"}',
- # http://code.google.com/p/simplejson/issues/detail?id=3
+ # https://code.google.com/archive/p/simplejson/issues/3
'["A\u001FZ control characters in string"]',
]
from test.test_json import PyTest, CTest
-# from http://json.org/JSON_checker/test/pass1.json
+# from https://json.org/JSON_checker/test/pass1.json
JSON = r'''
[
"JSON Test Pattern pass1",
from test.test_json import PyTest, CTest
-# from http://json.org/JSON_checker/test/pass2.json
+# from https://json.org/JSON_checker/test/pass2.json
JSON = r'''
[[[[[[[[[[[[[[[[[[["Not too deep"]]]]]]]]]]]]]]]]]]]
'''
from test.test_json import PyTest, CTest
-# from http://json.org/JSON_checker/test/pass3.json
+# from https://json.org/JSON_checker/test/pass3.json
JSON = r'''
{
"JSON Test Pattern pass3": {
errors="ignore",
) as p:
p.stdin.close()
- version = next(p.stdout).splitlines()[0].rpartition(" ")[2]
+ version = next(p.stdout, "\n").splitlines()[0].rpartition(" ")[2]
p.stdout.read()
p.wait(10)
if not sys.version.startswith(version):
self.assertEqual("3.100-arm64", data["SearchInfo.tag"])
self.assertEqual("X.Y-arm64.exe -X fake_arg_for_test -arg", data["stdout"].strip())
+ def test_py_default_short_argv0(self):
+ with self.py_ini(TEST_PY_COMMANDS):
+ for argv0 in ['"py.exe"', 'py.exe', '"py"', 'py']:
+ with self.subTest(argv0):
+ data = self.run_py(["--version"], argv=f'{argv0} --version')
+ self.assertEqual("PythonTestSuite", data["SearchInfo.company"])
+ self.assertEqual("3.100", data["SearchInfo.tag"])
+ self.assertEqual(f'X.Y.exe --version', data["stdout"].strip())
+
def test_py_default_in_list(self):
data = self.run_py(["-0"], env=TEST_PY_ENV)
default = None
self.assertEqual("3.100", data["SearchInfo.tag"])
self.assertEqual(f"X.Y.exe -prearg {script} -postarg", data["stdout"].strip())
+ def test_python_shebang(self):
+ with self.py_ini(TEST_PY_COMMANDS):
+ with self.script("#! python -prearg") as script:
+ data = self.run_py([script, "-postarg"])
+ self.assertEqual("PythonTestSuite", data["SearchInfo.company"])
+ self.assertEqual("3.100", data["SearchInfo.tag"])
+ self.assertEqual(f"X.Y.exe -prearg {script} -postarg", data["stdout"].strip())
+
def test_py2_shebang(self):
with self.py_ini(TEST_PY_COMMANDS):
with self.script("#! /usr/bin/python2 -prearg") as script:
self.assertIn("winget.exe", cmd)
# Both command lines include the store ID
self.assertIn("9PJPW5LDXLZ5", cmd)
+
+ def test_literal_shebang_absolute(self):
+ with self.script(f"#! C:/some_random_app -witharg") as script:
+ data = self.run_py([script])
+ self.assertEqual(
+ f"C:\\some_random_app -witharg {script}",
+ data["stdout"].strip(),
+ )
+
+ def test_literal_shebang_relative(self):
+ with self.script(f"#! ..\\some_random_app -witharg") as script:
+ data = self.run_py([script])
+ self.assertEqual(
+ f"{script.parent.parent}\\some_random_app -witharg {script}",
+ data["stdout"].strip(),
+ )
+
+ def test_literal_shebang_quoted(self):
+ with self.script(f'#! "some random app" -witharg') as script:
+ data = self.run_py([script])
+ self.assertEqual(
+ f'"{script.parent}\\some random app" -witharg {script}',
+ data["stdout"].strip(),
+ )
+
+ with self.script(f'#! some" random "app -witharg') as script:
+ data = self.run_py([script])
+ self.assertEqual(
+ f'"{script.parent}\\some random app" -witharg {script}',
+ data["stdout"].strip(),
+ )
+
+ def test_literal_shebang_quoted_escape(self):
+ with self.script(f'#! some\\" random "app -witharg') as script:
+ data = self.run_py([script])
+ self.assertEqual(
+ f'"{script.parent}\\some\\ random app" -witharg {script}',
+ data["stdout"].strip(),
+ )
b'\xff\xff\xff\xff\xff')
self.assertRaises(OverflowError, (1).to_bytes, 0, 'big')
+ # gh-98783
+ class SubStr(str):
+ pass
+ self.assertEqual((0).to_bytes(1, SubStr('big')), b'\x00')
+ self.assertEqual((0).to_bytes(0, SubStr('little')), b'')
+
def test_from_bytes(self):
def check(tests, byteorder, signed=False):
def equivalent_python(byte_array, byteorder, signed=False):
self.assertEqual(i, 1)
self.assertEqual(getattr(i, 'foo', 'none'), 'bar')
+ class ValidBytes:
+ def __bytes__(self):
+ return b'\x01'
+ class InvalidBytes:
+ def __bytes__(self):
+ return 'abc'
+ class MissingBytes: ...
+ class RaisingBytes:
+ def __bytes__(self):
+ 1 / 0
+
+ self.assertEqual(int.from_bytes(ValidBytes()), 1)
+ self.assertRaises(TypeError, int.from_bytes, InvalidBytes())
+ self.assertRaises(TypeError, int.from_bytes, MissingBytes())
+ self.assertRaises(ZeroDivisionError, int.from_bytes, RaisingBytes())
+
+ # gh-98783
+ class SubStr(str):
+ pass
+ self.assertEqual(int.from_bytes(b'', SubStr('big')), 0)
+ self.assertEqual(int.from_bytes(b'\x00', SubStr('little')), 0)
+
@support.cpython_only
def test_from_bytes_small(self):
# bpo-46361
#if os.name == 'nt' and hasattr(sys, 'gettotalrefcount'):
if os.name == 'nt':
MAX_MARSHAL_STACK_DEPTH = 1000
+ elif sys.platform == 'wasi':
+ MAX_MARSHAL_STACK_DEPTH = 1500
else:
MAX_MARSHAL_STACK_DEPTH = 2000
for i in range(MAX_MARSHAL_STACK_DEPTH - 2):
for elements in (
"float('nan'), b'a', b'b', b'c', 'x', 'y', 'z'",
# Also test for bad interactions with backreferencing:
- "('Spam', 0), ('Spam', 1), ('Spam', 2)",
+ "('Spam', 0), ('Spam', 1), ('Spam', 2), ('Spam', 3), ('Spam', 4), ('Spam', 5)",
):
s = f"{kind}([{elements}])"
with self.subTest(s):
self.assertEqual(math.dist(p, q), 5*scale)
self.assertEqual(math.dist(q, p), 5*scale)
+ def test_math_dist_leak(self):
+ # gh-98897: Check for error handling does not leak memory
+ with self.assertRaises(ValueError):
+ math.dist([1, 2], [3, 4, 5])
+
def testIsqrt(self):
# Test a variety of inputs, large and small.
test_values = (
for _ in range(1025):
self.assertFalse(f())
+ def test_load_shadowing_slot_should_raise_type_error(self):
+ class Class:
+ __slots__ = ("slot",)
+
+ class Sneaky:
+ __slots__ = ("shadowed",)
+ shadowing = Class.slot
+
+ def f(o):
+ o.shadowing
+
+ o = Sneaky()
+ o.shadowed = 42
+
+ for _ in range(1025):
+ with self.assertRaises(TypeError):
+ f(o)
+
+ def test_store_shadowing_slot_should_raise_type_error(self):
+ class Class:
+ __slots__ = ("slot",)
+
+ class Sneaky:
+ __slots__ = ("shadowed",)
+ shadowing = Class.slot
+
+ def f(o):
+ o.shadowing = 42
+
+ o = Sneaky()
+
+ for _ in range(1025):
+ with self.assertRaises(TypeError):
+ f(o)
+
+ def test_load_borrowed_slot_should_not_crash(self):
+ class Class:
+ __slots__ = ("slot",)
+
+ class Sneaky:
+ borrowed = Class.slot
+
+ def f(o):
+ o.borrowed
+
+ o = Sneaky()
+
+ for _ in range(1025):
+ with self.assertRaises(TypeError):
+ f(o)
+
+ def test_store_borrowed_slot_should_not_crash(self):
+ class Class:
+ __slots__ = ("slot",)
+
+ class Sneaky:
+ borrowed = Class.slot
+
+ def f(o):
+ o.borrowed = 42
+
+ o = Sneaky()
+
+ for _ in range(1025):
+ with self.assertRaises(TypeError):
+ f(o)
+
class TestLoadMethodCache(unittest.TestCase):
def test_descriptor_added_after_optimization(self):
stdout, stderr = self.run_pdb_script(script, commands)
self.assertFalse(stderr)
+ def test_gh_93696_frozen_list(self):
+ frozen_src = """
+ def func():
+ x = "Sentinel string for gh-93696"
+ print(x)
+ """
+ host_program = """
+ import os
+ import sys
+
+ def _create_fake_frozen_module():
+ with open('gh93696.py') as f:
+ src = f.read()
+
+ # this function has a co_filename as if it were in a frozen module
+ dummy_mod = compile(src, "<frozen gh93696>", "exec")
+ func_code = dummy_mod.co_consts[0]
+
+ mod = type(sys)("gh93696")
+ mod.func = type(lambda: None)(func_code, mod.__dict__)
+ mod.__file__ = 'gh93696.py'
+
+ return mod
+
+ mod = _create_fake_frozen_module()
+ mod.func()
+ """
+ commands = """
+ break 20
+ continue
+ step
+ list
+ quit
+ """
+ with open('gh93696.py', 'w') as f:
+ f.write(textwrap.dedent(frozen_src))
+
+ with open('gh93696_host.py', 'w') as f:
+ f.write(textwrap.dedent(host_program))
+
+ self.addCleanup(os_helper.unlink, 'gh93696.py')
+ self.addCleanup(os_helper.unlink, 'gh93696_host.py')
+ stdout, stderr = self._run_pdb(["gh93696_host.py"], commands)
+ # verify that pdb found the source of the "frozen" function
+ self.assertIn('x = "Sentinel string for gh-93696"', stdout, "Sentinel statement not found")
+
class ChecklineTests(unittest.TestCase):
def setUp(self):
linecache.clearcache() # Pdb.checkline() uses linecache.getline()
self.assertEqual(res[:], expected)
self.assertEqual(res[:5], expected[:5])
+ def test_uname_fields(self):
+ self.assertIn('processor', platform.uname()._fields)
+
+ def test_uname_asdict(self):
+ res = platform.uname()._asdict()
+ self.assertEqual(len(res), 6)
+ self.assertIn('processor', res)
+
@unittest.skipIf(sys.platform in ['win32', 'OpenVMS'], "uname -p not used")
@support.requires_subprocess()
def test_uname_processor(self):
def test_ismount(self):
self.assertIs(posixpath.ismount("/"), True)
self.assertIs(posixpath.ismount(b"/"), True)
+ self.assertIs(posixpath.ismount(FakePath("/")), True)
+ self.assertIs(posixpath.ismount(FakePath(b"/")), True)
def test_ismount_non_existent(self):
# Non-existent mountpoint.
self.checkPatternError(r'()(?(2)a)',
"invalid group reference 2", 5)
+ def test_re_groupref_exists_validation_bug(self):
+ for i in range(256):
+ with self.subTest(code=i):
+ re.compile(r'()(?(1)\x%02x?)' % i)
+
def test_re_groupref_overflow(self):
from re._constants import MAXGROUPS
self.checkTemplateError('()', r'\g<%s>' % MAXGROUPS, 'xx',
l = []
fun = lambda x: l.append(x)
scheduler = sched.scheduler(time.time, time.sleep)
- for priority in [1, 2, 3, 4, 5]:
- z = scheduler.enterabs(0.01, priority, fun, (priority,))
- scheduler.run()
- self.assertEqual(l, [1, 2, 3, 4, 5])
+
+ cases = [
+ ([1, 2, 3, 4, 5], [1, 2, 3, 4, 5]),
+ ([5, 4, 3, 2, 1], [1, 2, 3, 4, 5]),
+ ([2, 5, 3, 1, 4], [1, 2, 3, 4, 5]),
+ ([1, 2, 3, 2, 1], [1, 1, 2, 2, 3]),
+ ]
+ for priorities, expected in cases:
+ with self.subTest(priorities=priorities, expected=expected):
+ for priority in priorities:
+ scheduler.enterabs(0.01, priority, fun, (priority,))
+ scheduler.run()
+ self.assertEqual(l, expected)
+
+ # Cleanup:
+ self.assertTrue(scheduler.empty())
+ l.clear()
def test_cancel(self):
l = []
@os_helper.skip_unless_symlink
def test_copytree_dangling_symlinks(self):
- # a dangling symlink raises an error at the end
src_dir = self.mkdtemp()
+ valid_file = os.path.join(src_dir, 'test.txt')
+ write_file(valid_file, 'abc')
+ dir_a = os.path.join(src_dir, 'dir_a')
+ os.mkdir(dir_a)
+ for d in src_dir, dir_a:
+ os.symlink('IDONTEXIST', os.path.join(d, 'broken'))
+ os.symlink(valid_file, os.path.join(d, 'valid'))
+
+ # A dangling symlink should raise an error.
dst_dir = os.path.join(self.mkdtemp(), 'destination')
- os.symlink('IDONTEXIST', os.path.join(src_dir, 'test.txt'))
- os.mkdir(os.path.join(src_dir, 'test_dir'))
- write_file((src_dir, 'test_dir', 'test.txt'), '456')
self.assertRaises(Error, shutil.copytree, src_dir, dst_dir)
- # a dangling symlink is ignored with the proper flag
+ # Dangling symlinks should be ignored with the proper flag.
dst_dir = os.path.join(self.mkdtemp(), 'destination2')
shutil.copytree(src_dir, dst_dir, ignore_dangling_symlinks=True)
- self.assertNotIn('test.txt', os.listdir(dst_dir))
+ for root, dirs, files in os.walk(dst_dir):
+ self.assertNotIn('broken', files)
+ self.assertIn('valid', files)
# a dangling symlink is copied if symlinks=True
dst_dir = os.path.join(self.mkdtemp(), 'destination3')
finally:
os.unlink(TESTFN)
+ def test_tokenizer_fstring_warning_in_first_line(self):
+ source = "0b1and 2"
+ with open(TESTFN, "w") as fd:
+ fd.write("{}".format(source))
+ try:
+ retcode, stdout, stderr = script_helper.assert_python_ok(TESTFN)
+ self.assertIn(b"SyntaxWarning: invalid binary litera", stderr)
+ self.assertEqual(stderr.count(source.encode()), 1)
+ finally:
+ os.unlink(TESTFN)
+
+
class AbstractSourceEncodingTest:
def test_default_coding(self):
con.executescript("select step(t) from t")
self.assertEqual(steps, values)
+ def test_custom_cursor_object_crash_gh_99886(self):
+ # This test segfaults on GH-99886
+ class MyCursor(sqlite.Cursor):
+ def __init__(self, *args, **kwargs):
+ super().__init__(*args, **kwargs)
+ # this can go before or after the super call; doesn't matter
+ self.some_attr = None
+
+ with memory_database() as con:
+ cur = con.cursor(MyCursor)
+ cur.close()
+ del cur
class RecursiveUseOfCursors(unittest.TestCase):
# GH-80254: sqlite3 should not segfault for recursive use of cursors.
@unittest.skipUnless(sys.maxsize > 2**32, 'requires 64bit platform')
@support.bigmemtest(size=2**31, memuse=4, dry_run=False)
def test_too_large_string(self, maxsize):
- with self.assertRaises(sqlite.InterfaceError):
+ with self.assertRaises(sqlite.DataError):
self.cur.execute("insert into test(s) values (?)", ('x'*(2**31-1),))
- with self.assertRaises(OverflowError):
+ with self.assertRaises(sqlite.DataError):
self.cur.execute("insert into test(s) values (?)", ('x'*(2**31),))
self.cur.execute("select 1 from test")
row = self.cur.fetchone()
@unittest.skipUnless(sys.maxsize > 2**32, 'requires 64bit platform')
@support.bigmemtest(size=2**31, memuse=3, dry_run=False)
def test_too_large_blob(self, maxsize):
- with self.assertRaises(sqlite.InterfaceError):
+ with self.assertRaises(sqlite.DataError):
self.cur.execute("insert into test(s) values (?)", (b'x'*(2**31-1),))
- with self.assertRaises(OverflowError):
+ with self.assertRaises(sqlite.DataError):
self.cur.execute("insert into test(s) values (?)", (b'x'*(2**31),))
self.cur.execute("select 1 from test")
row = self.cur.fetchone()
nd = NormalDist(100, 15)
self.assertNotEqual(nd, lnd)
- def test_pickle_and_copy(self):
+ def test_copy(self):
nd = self.module.NormalDist(37.5, 5.625)
nd1 = copy.copy(nd)
self.assertEqual(nd, nd1)
nd2 = copy.deepcopy(nd)
self.assertEqual(nd, nd2)
- nd3 = pickle.loads(pickle.dumps(nd))
- self.assertEqual(nd, nd3)
+
+ def test_pickle(self):
+ nd = self.module.NormalDist(37.5, 5.625)
+ for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+ with self.subTest(proto=proto):
+ pickled = pickle.loads(pickle.dumps(nd, protocol=proto))
+ self.assertEqual(nd, pickled)
def test_hashability(self):
ND = self.module.NormalDist
self.assertRaises(SyntaxError, eval, """ bu'' """)
self.assertRaises(SyntaxError, eval, """ ub'' """)
+ def test_uppercase_prefixes(self):
+ self.assertEqual(eval(""" B'x' """), b'x')
+ self.assertEqual(eval(r""" R'\x01' """), r'\x01')
+ self.assertEqual(eval(r""" BR'\x01' """), br'\x01')
+ self.assertEqual(eval(""" F'{1+1}' """), f'{1+1}')
+ self.assertEqual(eval(r""" U'\U0001d120' """), u'\U0001d120')
+
def check_encoding(self, encoding, extra=""):
modname = "xx_" + encoding.replace("-", "_")
fn = os.path.join(self.tmpdir, modname + ".py")
input=None, universal_newlines=True)
self.assertNotIn('XX', output)
+ def test_check_output_input_none_encoding_errors(self):
+ output = subprocess.check_output(
+ [sys.executable, "-c", "print('foo')"],
+ input=None, encoding='utf-8', errors='ignore')
+ self.assertIn('foo', output)
+
def test_check_output_stdout_arg(self):
# check_output() refuses to accept 'stdout' argument
with self.assertRaises(ValueError) as c:
@unittest.skipIf(sys.platform.startswith("freebsd") and
os.stat("/dev").st_dev == os.stat("/dev/fd").st_dev,
- "Requires fdescfs mounted on /dev/fd on FreeBSD.")
+ "Requires fdescfs mounted on /dev/fd on FreeBSD")
def test_close_fds_when_max_fd_is_lowered(self):
"""Confirm that issue21618 is fixed (may fail under valgrind)."""
fd_status = support.findfile("fd_status.py", subdir="subprocessdata")
1, 2, 3, 4,
True, True, 0,
None, None, None, -1,
- None, "no vfork")
+ None, True)
self.assertIn('fds_to_keep', str(c.exception))
finally:
if not gc_enabled:
"Generator expression must be parenthesized",
lineno=1, end_lineno=1, offset=11, end_offset=53)
+ def test_except_then_except_star(self):
+ self._check_error("try: pass\nexcept ValueError: pass\nexcept* TypeError: pass",
+ r"cannot have both 'except' and 'except\*' on the same 'try'",
+ lineno=3, end_lineno=3, offset=1, end_offset=8)
+
+ def test_except_star_then_except(self):
+ self._check_error("try: pass\nexcept* ValueError: pass\nexcept TypeError: pass",
+ r"cannot have both 'except' and 'except\*' on the same 'try'",
+ lineno=3, end_lineno=3, offset=1, end_offset=7)
+
def test_empty_line_after_linecont(self):
# See issue-40847
s = r"""\
finally:
sys.settrace(existing)
+ def test_line_event_raises_before_opcode_event(self):
+ exception = ValueError("BOOM!")
+ def trace(frame, event, arg):
+ if event == "line":
+ raise exception
+ frame.f_trace_opcodes = True
+ return trace
+ def f():
+ pass
+ with self.assertRaises(ValueError) as caught:
+ sys.settrace(trace)
+ f()
+ self.assertIs(caught.exception, exception)
+
# 'Jump' tests: assigning to frame.f_lineno within a trace function
# moves the execution position - it's how debuggers implement a Jump
self.assertEqual(status, 0)
self.assertEqual(my_platform, test_platform)
+ @unittest.skipIf(is_wasi, "Incompatible with WASI mapdir and OOT builds")
def test_srcdir(self):
# See Issues #15322, #15364.
srcdir = sysconfig.get_config_var('srcdir')
-from test.support import import_helper
+from test.support import import_helper, threading_helper
syslog = import_helper.import_module("syslog") #skip if not supported
+from test import support
+import sys
+import threading
+import time
import unittest
# XXX(nnorwitz): This test sucks. I don't know of a platform independent way
class Test(unittest.TestCase):
+ def tearDown(self):
+ syslog.closelog()
+
def test_openlog(self):
syslog.openlog('python')
# Issue #6697.
syslog.syslog('test message from python test_syslog')
syslog.syslog(syslog.LOG_ERR, 'test error from python test_syslog')
+ def test_syslog_implicit_open(self):
+ syslog.closelog() # Make sure log is closed
+ syslog.syslog('test message from python test_syslog')
+ syslog.syslog(syslog.LOG_ERR, 'test error from python test_syslog')
+
def test_closelog(self):
syslog.openlog('python')
syslog.closelog()
+ syslog.closelog() # idempotent operation
def test_setlogmask(self):
- syslog.setlogmask(syslog.LOG_DEBUG)
+ mask = syslog.LOG_UPTO(syslog.LOG_WARNING)
+ oldmask = syslog.setlogmask(mask)
+ self.assertEqual(syslog.setlogmask(0), mask)
+ self.assertEqual(syslog.setlogmask(oldmask), mask)
def test_log_mask(self):
- syslog.LOG_MASK(syslog.LOG_INFO)
-
- def test_log_upto(self):
- syslog.LOG_UPTO(syslog.LOG_INFO)
+ mask = syslog.LOG_UPTO(syslog.LOG_WARNING)
+ self.assertTrue(mask & syslog.LOG_MASK(syslog.LOG_WARNING))
+ self.assertTrue(mask & syslog.LOG_MASK(syslog.LOG_ERR))
+ self.assertFalse(mask & syslog.LOG_MASK(syslog.LOG_INFO))
def test_openlog_noargs(self):
syslog.openlog()
syslog.syslog('test message from python test_syslog')
+ @threading_helper.requires_working_threading()
+ def test_syslog_threaded(self):
+ start = threading.Event()
+ stop = False
+ def opener():
+ start.wait(10)
+ i = 1
+ while not stop:
+ syslog.openlog(f'python-test-{i}') # new string object
+ i += 1
+ def logger():
+ start.wait(10)
+ while not stop:
+ syslog.syslog('test message from python test_syslog')
+
+ orig_si = sys.getswitchinterval()
+ support.setswitchinterval(1e-9)
+ try:
+ threads = [threading.Thread(target=opener)]
+ threads += [threading.Thread(target=logger) for k in range(10)]
+ with threading_helper.start_threads(threads):
+ start.set()
+ time.sleep(0.1)
+ stop = True
+ finally:
+ sys.setswitchinterval(orig_si)
+
+
if __name__ == "__main__":
unittest.main()
with self.assertRaises(tarfile.ReadError):
tarfile.open(self.tarname)
+ def test_next_on_empty_tarfile(self):
+ fd = io.BytesIO()
+ tf = tarfile.open(fileobj=fd, mode="w")
+ tf.close()
+
+ fd.seek(0)
+ with tarfile.open(fileobj=fd, mode="r|") as tf:
+ self.assertEqual(tf.next(), None)
+
+ fd.seek(0)
+ with tarfile.open(fileobj=fd, mode="r") as tf:
+ self.assertEqual(tf.next(), None)
class MiscReadTest(MiscReadTestBase, unittest.TestCase):
test_fail_comp = None
from tokenize import (tokenize, _tokenize, untokenize, NUMBER, NAME, OP,
STRING, ENDMARKER, ENCODING, tok_name, detect_encoding,
open as tokenize_open, Untokenizer, generate_tokens,
- NEWLINE, _generate_tokens_from_c_tokenizer)
+ NEWLINE, _generate_tokens_from_c_tokenizer, DEDENT)
from io import BytesIO, StringIO
import unittest
from textwrap import dedent
from unittest import TestCase, mock
from test.test_grammar import (VALID_UNDERSCORE_LITERALS,
INVALID_UNDERSCORE_LITERALS)
+from test.support import os_helper
+from test.support.script_helper import run_test_script, make_script
import os
import token
self.assertRaises(SyntaxError, get_tokens, "("*1000+"a"+")"*1000)
self.assertRaises(SyntaxError, get_tokens, "]")
+ def test_max_indent(self):
+ MAXINDENT = 100
+
+ def generate_source(indents):
+ source = ''.join((' ' * x) + 'if True:\n' for x in range(indents))
+ source += ' ' * indents + 'pass\n'
+ return source
+
+ valid = generate_source(MAXINDENT - 1)
+ tokens = list(_generate_tokens_from_c_tokenizer(valid))
+ self.assertEqual(tokens[-1].type, DEDENT)
+ compile(valid, "<string>", "exec")
+
+ invalid = generate_source(MAXINDENT)
+ tokens = list(_generate_tokens_from_c_tokenizer(invalid))
+ self.assertEqual(tokens[-1].type, NEWLINE)
+ self.assertRaises(
+ IndentationError, compile, invalid, "<string>", "exec"
+ )
+
def test_continuation_lines_indentation(self):
def get_tokens(string):
return [(kind, string) for (kind, string, *_) in _generate_tokens_from_c_tokenizer(string)]
self.assertEqual(get_tokens(code), get_tokens(code_no_cont))
+class CTokenizerBufferTests(unittest.TestCase):
+ def test_newline_at_the_end_of_buffer(self):
+ # See issue 99581: Make sure that if we need to add a new line at the
+ # end of the buffer, we have enough space in the buffer, specially when
+ # the current line is as long as the buffer space available.
+ test_script = f"""\
+ #coding: latin-1
+ #{"a"*10000}
+ #{"a"*10002}"""
+ with os_helper.temp_dir() as temp_dir:
+ file_name = make_script(temp_dir, 'foo', test_script)
+ run_test_script(file_name)
+
+
if __name__ == "__main__":
unittest.main()
'''))
self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
+ def test_moduledocstring(self):
+ for doc in ('"""doc"""', "r'''doc'''", "R'doc'", 'u"doc"'):
+ with self.subTest(doc):
+ msgids = self.extract_docstrings_from_str(dedent('''\
+ %s
+ ''' % doc))
+ self.assertIn('doc', msgids)
+
+ def test_moduledocstring_bytes(self):
+ msgids = self.extract_docstrings_from_str(dedent('''\
+ b"""doc"""
+ '''))
+ self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
+
+ def test_moduledocstring_fstring(self):
+ msgids = self.extract_docstrings_from_str(dedent('''\
+ f"""doc"""
+ '''))
+ self.assertFalse([msgid for msgid in msgids if 'doc' in msgid])
+
def test_msgid(self):
msgids = self.extract_docstrings_from_str(
'''_("""doc""" r'str' u"ing")''')
import os
+from pickle import dump
import sys
from test.support import captured_stdout
from test.support.os_helper import (TESTFN, rmtree, unlink)
self.assertIn(modname, coverage)
self.assertEqual(coverage[modname], (5, 100))
+ def test_coverageresults_update(self):
+ # Update empty CoverageResults with a non-empty infile.
+ infile = TESTFN + '-infile'
+ with open(infile, 'wb') as f:
+ dump(({}, {}, {'caller': 1}), f, protocol=1)
+ self.addCleanup(unlink, infile)
+ results = trace.CoverageResults({}, {}, infile, {})
+ self.assertEqual(results.callers, {'caller': 1})
+
### Tests that don't mess with sys.settrace and can be traced
### themselves TODO: Skip tests that do mess with sys.settrace when
### regrtest is invoked with -T option.
result_lines = self.get_exception(f_with_binary_operator)
self.assertEqual(result_lines, expected_error.splitlines())
+ def test_caret_for_binary_operators_with_unicode(self):
+ def f_with_binary_operator():
+ áóí = 20
+ return 10 + áóí / 0 + 30
+
+ lineno_f = f_with_binary_operator.__code__.co_firstlineno
+ expected_error = (
+ 'Traceback (most recent call last):\n'
+ f' File "{__file__}", line {self.callable_line}, in get_exception\n'
+ ' callable()\n'
+ f' File "{__file__}", line {lineno_f+2}, in f_with_binary_operator\n'
+ ' return 10 + áóí / 0 + 30\n'
+ ' ~~~~^~~\n'
+ )
+ result_lines = self.get_exception(f_with_binary_operator)
+ self.assertEqual(result_lines, expected_error.splitlines())
+
def test_caret_for_binary_operators_two_char(self):
def f_with_binary_operator():
divisor = 20
result_lines = self.get_exception(f_with_subscript)
self.assertEqual(result_lines, expected_error.splitlines())
+ def test_caret_for_subscript_unicode(self):
+ def f_with_subscript():
+ some_dict = {'ó': {'á': {'í': {'theta': 1}}}}
+ return some_dict['ó']['á']['í']['beta']
+
+ lineno_f = f_with_subscript.__code__.co_firstlineno
+ expected_error = (
+ 'Traceback (most recent call last):\n'
+ f' File "{__file__}", line {self.callable_line}, in get_exception\n'
+ ' callable()\n'
+ f' File "{__file__}", line {lineno_f+2}, in f_with_subscript\n'
+ " return some_dict['ó']['á']['í']['beta']\n"
+ ' ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^\n'
+ )
+ result_lines = self.get_exception(f_with_subscript)
+ self.assertEqual(result_lines, expected_error.splitlines())
+
def test_traceback_specialization_with_syntax_error(self):
bytecode = compile("1 / 0 / 1 / 2\n", TESTFN, "exec")
]
self.assertEqual(actual, expected)
+ def test_wide_characters_unicode_with_problematic_byte_offset(self):
+ def f():
+ ｗｉｄｔｈ
+
+ actual = self.get_exception(f)
+ expected = [
+ f"Traceback (most recent call last):",
+ f" File \"{__file__}\", line {self.callable_line}, in get_exception",
+ f" callable()",
+ f" File \"{__file__}\", line {f.__code__.co_firstlineno + 1}, in f",
+ f" ｗｉｄｔｈ",
+ ]
+ self.assertEqual(actual, expected)
+
+
+ def test_byte_offset_with_wide_characters_middle(self):
+ def f():
+ ｗｉｄｔｈ = 1
+ raise ValueError(ｗｉｄｔｈ)
+
+ actual = self.get_exception(f)
+ expected = [
+ f"Traceback (most recent call last):",
+ f" File \"{__file__}\", line {self.callable_line}, in get_exception",
+ f" callable()",
+ f" File \"{__file__}\", line {f.__code__.co_firstlineno + 2}, in f",
+ f" raise ValueError(ｗｉｄｔｈ)",
+ ]
+ self.assertEqual(actual, expected)
+
+ def test_byte_offset_multiline(self):
+ def f():
+ ｗｗｗ = 1
+ ｔｈ = 0
+
+ print(1, ｗｗｗ(
+ ｔｈ))
+
+ actual = self.get_exception(f)
+ expected = [
+ f"Traceback (most recent call last):",
+ f" File \"{__file__}\", line {self.callable_line}, in get_exception",
+ f" callable()",
+ f" File \"{__file__}\", line {f.__code__.co_firstlineno + 4}, in f",
+ f" print(1, ｗｗｗ(",
+ f" ^^^^",
+ ]
+ self.assertEqual(actual, expected)
+
+
@cpython_only
@requires_debug_ranges()
class CPythonTracebackErrorCaretTests(TracebackErrorLocationCaretTests):
import weakref
import types
-from test.support import import_helper, captured_stderr
+from test.support import import_helper, captured_stderr, cpython_only
from test import mod_generics_cache
from test import _typed_dict_helper
py_typing = import_helper.import_fresh_module('typing', blocked=['_typing'])
c_typing = import_helper.import_fresh_module('typing', fresh=['_typing'])
+CANNOT_SUBCLASS_TYPE = 'Cannot subclass special typing classes'
+
class BaseTestCase(TestCase):
def test_repr(self):
self.assertEqual(repr(Any), 'typing.Any')
+ class Sub(Any): pass
+ self.assertEqual(
+ repr(Sub),
+ "<class 'test.test_typing.AnyTests.test_repr.<locals>.Sub'>",
+ )
+
def test_errors(self):
with self.assertRaises(TypeError):
issubclass(42, Any)
class GenericAliasSubstitutionTests(BaseTestCase):
"""Tests for type variable substitution in generic aliases.
- Note that the expected results here are tentative, based on a
- still-being-worked-out spec for what we allow at runtime (given that
- implementation of *full* substitution logic at runtime would add too much
- complexity to typing.py). This spec is currently being discussed at
+ For variadic cases, these tests should be regarded as the source of truth,
+ since we hadn't realised the full complexity of variadic substitution
+ at the time of finalizing PEP 646. For full discussion, see
https://github.com/python/cpython/issues/91162.
"""
('generic[T1, T2]', '[tuple_type[int, ...]]', 'TypeError'),
('generic[T1, T2]', '[tuple_type[int, ...], tuple_type[str, ...]]', 'generic[tuple_type[int, ...], tuple_type[str, ...]]'),
- # Should raise TypeError according to the tentative spec: unpacked
- # types cannot be used as arguments to aliases that expect a fixed
- # number of arguments.
('generic[T1, T2]', '[*tuple_type[int, ...]]', 'TypeError'),
('generic[T1, T2]', '[int, *tuple_type[str, ...]]', 'TypeError'),
('generic[T1, T2]', '[*tuple_type[int, ...], str]', 'TypeError'),
('generic[T1, T2]', '[*Ts]', 'TypeError'),
('generic[T1, T2]', '[T, *Ts]', 'TypeError'),
('generic[T1, T2]', '[*Ts, T]', 'TypeError'),
- # Should raise TypeError according to the tentative spec: unpacked
- # types cannot be used as arguments to generics that expect a fixed
- # number of arguments.
- # (None of the things in `generics` were defined using *Ts.)
+ # This one isn't technically valid - none of the things that
+ # `generic` can be (defined in `generics` above) are variadic, so we
+ # shouldn't really be able to do `generic[T1, *tuple_type[int, ...]]`.
+ # So even if type checkers shouldn't allow it, we allow it at
+ # runtime, in accordance with a general philosophy of "Keep the
+ # runtime lenient so people can experiment with typing constructs".
('generic[T1, *tuple_type[int, ...]]', '[str]', 'generic[str, *tuple_type[int, ...]]'),
]
generics = ['C', 'tuple', 'Tuple']
tuple_types = ['tuple', 'Tuple']
- # The majority of these have three separate cases for C, tuple and
- # Tuple because tuple currently behaves differently.
tests = [
# Alias # Args # Expected result
('generic[*Ts]', '[()]', 'generic[()]'),
('generic[*Ts]', '[*Ts]', 'generic[*Ts]'),
('generic[*Ts]', '[T, *Ts]', 'generic[T, *Ts]'),
('generic[*Ts]', '[*Ts, T]', 'generic[*Ts, T]'),
+ ('generic[T, *Ts]', '[()]', 'TypeError'),
('generic[T, *Ts]', '[int]', 'generic[int]'),
('generic[T, *Ts]', '[int, str]', 'generic[int, str]'),
('generic[T, *Ts]', '[int, str, bool]', 'generic[int, str, bool]'),
+ ('generic[list[T], *Ts]', '[()]', 'TypeError'),
('generic[list[T], *Ts]', '[int]', 'generic[list[int]]'),
('generic[list[T], *Ts]', '[int, str]', 'generic[list[int], str]'),
('generic[list[T], *Ts]', '[int, str, bool]', 'generic[list[int], str, bool]'),
+ ('generic[*Ts, T]', '[()]', 'TypeError'),
('generic[*Ts, T]', '[int]', 'generic[int]'),
('generic[*Ts, T]', '[int, str]', 'generic[int, str]'),
('generic[*Ts, T]', '[int, str, bool]', 'generic[int, str, bool]'),
+ ('generic[*Ts, list[T]]', '[()]', 'TypeError'),
('generic[*Ts, list[T]]', '[int]', 'generic[list[int]]'),
('generic[*Ts, list[T]]', '[int, str]', 'generic[int, list[str]]'),
('generic[*Ts, list[T]]', '[int, str, bool]', 'generic[int, str, list[bool]]'),
+ ('generic[T1, T2, *Ts]', '[()]', 'TypeError'),
+ ('generic[T1, T2, *Ts]', '[int]', 'TypeError'),
+ ('generic[T1, T2, *Ts]', '[int, str]', 'generic[int, str]'),
+ ('generic[T1, T2, *Ts]', '[int, str, bool]', 'generic[int, str, bool]'),
+ ('generic[T1, T2, *Ts]', '[int, str, bool, bytes]', 'generic[int, str, bool, bytes]'),
+
+ ('generic[*Ts, T1, T2]', '[()]', 'TypeError'),
+ ('generic[*Ts, T1, T2]', '[int]', 'TypeError'),
+ ('generic[*Ts, T1, T2]', '[int, str]', 'generic[int, str]'),
+ ('generic[*Ts, T1, T2]', '[int, str, bool]', 'generic[int, str, bool]'),
+ ('generic[*Ts, T1, T2]', '[int, str, bool, bytes]', 'generic[int, str, bool, bytes]'),
+
+ ('generic[T1, *Ts, T2]', '[()]', 'TypeError'),
+ ('generic[T1, *Ts, T2]', '[int]', 'TypeError'),
+ ('generic[T1, *Ts, T2]', '[int, str]', 'generic[int, str]'),
+ ('generic[T1, *Ts, T2]', '[int, str, bool]', 'generic[int, str, bool]'),
+ ('generic[T1, *Ts, T2]', '[int, str, bool, bytes]', 'generic[int, str, bool, bytes]'),
+
('generic[T, *Ts]', '[*tuple_type[int, ...]]', 'generic[int, *tuple_type[int, ...]]'),
+ ('generic[T, *Ts]', '[str, *tuple_type[int, ...]]', 'generic[str, *tuple_type[int, ...]]'),
+ ('generic[T, *Ts]', '[*tuple_type[int, ...], str]', 'generic[int, *tuple_type[int, ...], str]'),
('generic[*Ts, T]', '[*tuple_type[int, ...]]', 'generic[*tuple_type[int, ...], int]'),
+ ('generic[*Ts, T]', '[str, *tuple_type[int, ...]]', 'generic[str, *tuple_type[int, ...], int]'),
+ ('generic[*Ts, T]', '[*tuple_type[int, ...], str]', 'generic[*tuple_type[int, ...], str]'),
('generic[T1, *Ts, T2]', '[*tuple_type[int, ...]]', 'generic[int, *tuple_type[int, ...], int]'),
('generic[T, str, *Ts]', '[*tuple_type[int, ...]]', 'generic[int, str, *tuple_type[int, ...]]'),
('generic[*Ts, str, T]', '[*tuple_type[int, ...]]', 'generic[*tuple_type[int, ...], str, int]'),
class UnpackTests(BaseTestCase):
def test_accepts_single_type(self):
+ (*tuple[int],)
Unpack[Tuple[int]]
def test_rejects_multiple_types(self):
with self.assertRaises(TypeError):
Unpack[Tuple[int], Tuple[str]]
+ # We can't do the equivalent for `*` here -
+ # *(Tuple[int], Tuple[str]) is just plain tuple unpacking,
+ # which is valid.
def test_rejects_multiple_parameterization(self):
with self.assertRaises(TypeError):
+ (*tuple[int],)[0][tuple[int]]
+ with self.assertRaises(TypeError):
Unpack[Tuple[int]][Tuple[int]]
def test_cannot_be_called(self):
def test_unpacked_typevartuple_is_equal_to_itself(self):
Ts = TypeVarTuple('Ts')
+ self.assertEqual((*Ts,)[0], (*Ts,)[0])
self.assertEqual(Unpack[Ts], Unpack[Ts])
def test_parameterised_tuple_is_equal_to_itself(self):
Ts = TypeVarTuple('Ts')
- self.assertEqual(tuple[Unpack[Ts]], tuple[Unpack[Ts]])
+ self.assertEqual(tuple[*Ts], tuple[*Ts])
self.assertEqual(Tuple[Unpack[Ts]], Tuple[Unpack[Ts]])
def tests_tuple_arg_ordering_matters(self):
Ts1 = TypeVarTuple('Ts1')
Ts2 = TypeVarTuple('Ts2')
self.assertNotEqual(
- tuple[Unpack[Ts1], Unpack[Ts2]],
- tuple[Unpack[Ts2], Unpack[Ts1]],
+ tuple[*Ts1, *Ts2],
+ tuple[*Ts2, *Ts1],
)
self.assertNotEqual(
Tuple[Unpack[Ts1], Unpack[Ts2]],
def test_tuple_args_and_parameters_are_correct(self):
Ts = TypeVarTuple('Ts')
- t1 = tuple[Unpack[Ts]]
- self.assertEqual(t1.__args__, (Unpack[Ts],))
+ t1 = tuple[*Ts]
+ self.assertEqual(t1.__args__, (*Ts,))
self.assertEqual(t1.__parameters__, (Ts,))
t2 = Tuple[Unpack[Ts]]
self.assertEqual(t2.__args__, (Unpack[Ts],))
Ts = TypeVarTuple('Ts')
T = TypeVar('T')
T2 = TypeVar('T2')
- class G(Generic[Unpack[Ts]]): pass
+ class G1(Generic[*Ts]): pass
+ class G2(Generic[Unpack[Ts]]): pass
- for A in G, Tuple, tuple:
- B = A[Unpack[Ts]]
+ for A in G1, G2, Tuple, tuple:
+ B = A[*Ts]
self.assertEqual(B[()], A[()])
self.assertEqual(B[float], A[float])
self.assertEqual(B[float, str], A[float, str])
- C = List[A[Unpack[Ts]]]
- self.assertEqual(C[()], List[A[()]])
- self.assertEqual(C[float], List[A[float]])
- self.assertEqual(C[float, str], List[A[float, str]])
+ C = A[Unpack[Ts]]
+ self.assertEqual(C[()], A[()])
+ self.assertEqual(C[float], A[float])
+ self.assertEqual(C[float, str], A[float, str])
+
+ D = list[A[*Ts]]
+ self.assertEqual(D[()], list[A[()]])
+ self.assertEqual(D[float], list[A[float]])
+ self.assertEqual(D[float, str], list[A[float, str]])
- D = A[T, Unpack[Ts], T2]
+ E = List[A[Unpack[Ts]]]
+ self.assertEqual(E[()], List[A[()]])
+ self.assertEqual(E[float], List[A[float]])
+ self.assertEqual(E[float, str], List[A[float, str]])
+
+ F = A[T, *Ts, T2]
with self.assertRaises(TypeError):
- D[()]
+ F[()]
with self.assertRaises(TypeError):
- D[float]
- self.assertEqual(D[float, str], A[float, str])
- self.assertEqual(D[float, str, int], A[float, str, int])
- self.assertEqual(D[float, str, int, bytes], A[float, str, int, bytes])
+ F[float]
+ self.assertEqual(F[float, str], A[float, str])
+ self.assertEqual(F[float, str, int], A[float, str, int])
+ self.assertEqual(F[float, str, int, bytes], A[float, str, int, bytes])
- E = Tuple[List[T], A[Unpack[Ts]], List[T2]]
+ G = A[T, Unpack[Ts], T2]
with self.assertRaises(TypeError):
- E[()]
+ G[()]
with self.assertRaises(TypeError):
- E[float]
+ G[float]
+ self.assertEqual(G[float, str], A[float, str])
+ self.assertEqual(G[float, str, int], A[float, str, int])
+ self.assertEqual(G[float, str, int, bytes], A[float, str, int, bytes])
+
+ H = tuple[list[T], A[*Ts], list[T2]]
+ with self.assertRaises(TypeError):
+ H[()]
+ with self.assertRaises(TypeError):
+ H[float]
+ if A != Tuple:
+ self.assertEqual(H[float, str],
+ tuple[list[float], A[()], list[str]])
+ self.assertEqual(H[float, str, int],
+ tuple[list[float], A[str], list[int]])
+ self.assertEqual(H[float, str, int, bytes],
+ tuple[list[float], A[str, int], list[bytes]])
+
+ I = Tuple[List[T], A[Unpack[Ts]], List[T2]]
+ with self.assertRaises(TypeError):
+ I[()]
+ with self.assertRaises(TypeError):
+ I[float]
if A != Tuple:
- self.assertEqual(E[float, str],
+ self.assertEqual(I[float, str],
Tuple[List[float], A[()], List[str]])
- self.assertEqual(E[float, str, int],
+ self.assertEqual(I[float, str, int],
Tuple[List[float], A[str], List[int]])
- self.assertEqual(E[float, str, int, bytes],
+ self.assertEqual(I[float, str, int, bytes],
Tuple[List[float], A[str, int], List[bytes]])
def test_bad_var_substitution(self):
Ts = TypeVarTuple('Ts')
T = TypeVar('T')
T2 = TypeVar('T2')
- class G(Generic[Unpack[Ts]]): pass
+ class G1(Generic[*Ts]): pass
+ class G2(Generic[Unpack[Ts]]): pass
- for A in G, Tuple, tuple:
+ for A in G1, G2, Tuple, tuple:
B = A[Ts]
with self.assertRaises(TypeError):
B[int, str]
C = A[T, T2]
with self.assertRaises(TypeError):
+ C[*Ts]
+ with self.assertRaises(TypeError):
C[Unpack[Ts]]
- def test_repr_is_correct(self):
- Ts = TypeVarTuple('Ts')
- T = TypeVar('T')
- T2 = TypeVar('T2')
- class G(Generic[Unpack[Ts]]): pass
-
- for A in G, Tuple:
- B = A[T, Unpack[Ts], str, T2]
+ B = A[T, *Ts, str, T2]
+ with self.assertRaises(TypeError):
+ B[int, *Ts]
with self.assertRaises(TypeError):
- B[int, Unpack[Ts]]
+ B[int, *Ts, *Ts]
+
C = A[T, Unpack[Ts], str, T2]
with self.assertRaises(TypeError):
+ C[int, Unpack[Ts]]
+ with self.assertRaises(TypeError):
C[int, Unpack[Ts], Unpack[Ts]]
def test_repr_is_correct(self):
Ts = TypeVarTuple('Ts')
+ T = TypeVar('T')
+ T2 = TypeVar('T2')
+
+ class G1(Generic[*Ts]): pass
+ class G2(Generic[Unpack[Ts]]): pass
+
self.assertEqual(repr(Ts), 'Ts')
+
+ self.assertEqual(repr((*Ts,)[0]), '*Ts')
self.assertEqual(repr(Unpack[Ts]), '*Ts')
- self.assertEqual(repr(tuple[Unpack[Ts]]), 'tuple[*Ts]')
+
+ self.assertEqual(repr(tuple[*Ts]), 'tuple[*Ts]')
self.assertEqual(repr(Tuple[Unpack[Ts]]), 'typing.Tuple[*Ts]')
- self.assertEqual(repr(Unpack[tuple[Unpack[Ts]]]), '*tuple[*Ts]')
+
+ self.assertEqual(repr(*tuple[*Ts]), '*tuple[*Ts]')
self.assertEqual(repr(Unpack[Tuple[Unpack[Ts]]]), '*typing.Tuple[*Ts]')
def test_variadic_class_repr_is_correct(self):
Ts = TypeVarTuple('Ts')
- class A(Generic[Unpack[Ts]]): pass
+ class A(Generic[*Ts]): pass
+ class B(Generic[Unpack[Ts]]): pass
self.assertEndsWith(repr(A[()]), 'A[()]')
+ self.assertEndsWith(repr(B[()]), 'B[()]')
self.assertEndsWith(repr(A[float]), 'A[float]')
+ self.assertEndsWith(repr(B[float]), 'B[float]')
self.assertEndsWith(repr(A[float, str]), 'A[float, str]')
- self.assertEndsWith(repr(A[Unpack[tuple[int, ...]]]),
+ self.assertEndsWith(repr(B[float, str]), 'B[float, str]')
+
+ self.assertEndsWith(repr(A[*tuple[int, ...]]),
'A[*tuple[int, ...]]')
- self.assertEndsWith(repr(A[float, Unpack[tuple[int, ...]]]),
+ self.assertEndsWith(repr(B[Unpack[Tuple[int, ...]]]),
+ 'B[*typing.Tuple[int, ...]]')
+
+ self.assertEndsWith(repr(A[float, *tuple[int, ...]]),
'A[float, *tuple[int, ...]]')
- self.assertEndsWith(repr(A[Unpack[tuple[int, ...]], str]),
+ self.assertEndsWith(repr(A[float, Unpack[Tuple[int, ...]]]),
+ 'A[float, *typing.Tuple[int, ...]]')
+
+ self.assertEndsWith(repr(A[*tuple[int, ...], str]),
'A[*tuple[int, ...], str]')
- self.assertEndsWith(repr(A[float, Unpack[tuple[int, ...]], str]),
+ self.assertEndsWith(repr(B[Unpack[Tuple[int, ...]], str]),
+ 'B[*typing.Tuple[int, ...], str]')
+
+ self.assertEndsWith(repr(A[float, *tuple[int, ...], str]),
'A[float, *tuple[int, ...], str]')
+ self.assertEndsWith(repr(B[float, Unpack[Tuple[int, ...]], str]),
+ 'B[float, *typing.Tuple[int, ...], str]')
def test_variadic_class_alias_repr_is_correct(self):
Ts = TypeVarTuple('Ts')
class A(Generic[Unpack[Ts]]): pass
- B = A[Unpack[Ts]]
+ B = A[*Ts]
self.assertEndsWith(repr(B), 'A[*Ts]')
self.assertEndsWith(repr(B[()]), 'A[()]')
self.assertEndsWith(repr(B[float]), 'A[float]')
self.assertEndsWith(repr(B[float, str]), 'A[float, str]')
- C = A[Unpack[Ts], int]
- self.assertEndsWith(repr(C), 'A[*Ts, int]')
- self.assertEndsWith(repr(C[()]), 'A[int]')
- self.assertEndsWith(repr(C[float]), 'A[float, int]')
- self.assertEndsWith(repr(C[float, str]), 'A[float, str, int]')
+ C = A[Unpack[Ts]]
+ self.assertEndsWith(repr(C), 'A[*Ts]')
+ self.assertEndsWith(repr(C[()]), 'A[()]')
+ self.assertEndsWith(repr(C[float]), 'A[float]')
+ self.assertEndsWith(repr(C[float, str]), 'A[float, str]')
- D = A[int, Unpack[Ts]]
- self.assertEndsWith(repr(D), 'A[int, *Ts]')
+ D = A[*Ts, int]
+ self.assertEndsWith(repr(D), 'A[*Ts, int]')
self.assertEndsWith(repr(D[()]), 'A[int]')
- self.assertEndsWith(repr(D[float]), 'A[int, float]')
- self.assertEndsWith(repr(D[float, str]), 'A[int, float, str]')
-
- E = A[int, Unpack[Ts], str]
- self.assertEndsWith(repr(E), 'A[int, *Ts, str]')
- self.assertEndsWith(repr(E[()]), 'A[int, str]')
- self.assertEndsWith(repr(E[float]), 'A[int, float, str]')
- self.assertEndsWith(repr(E[float, str]), 'A[int, float, str, str]')
-
- F = A[Unpack[Ts], Unpack[tuple[str, ...]]]
- self.assertEndsWith(repr(F), 'A[*Ts, *tuple[str, ...]]')
- self.assertEndsWith(repr(F[()]), 'A[*tuple[str, ...]]')
- self.assertEndsWith(repr(F[float]), 'A[float, *tuple[str, ...]]')
- self.assertEndsWith(repr(F[float, str]), 'A[float, str, *tuple[str, ...]]')
+ self.assertEndsWith(repr(D[float]), 'A[float, int]')
+ self.assertEndsWith(repr(D[float, str]), 'A[float, str, int]')
+
+ E = A[Unpack[Ts], int]
+ self.assertEndsWith(repr(E), 'A[*Ts, int]')
+ self.assertEndsWith(repr(E[()]), 'A[int]')
+ self.assertEndsWith(repr(E[float]), 'A[float, int]')
+ self.assertEndsWith(repr(E[float, str]), 'A[float, str, int]')
+
+ F = A[int, *Ts]
+ self.assertEndsWith(repr(F), 'A[int, *Ts]')
+ self.assertEndsWith(repr(F[()]), 'A[int]')
+ self.assertEndsWith(repr(F[float]), 'A[int, float]')
+ self.assertEndsWith(repr(F[float, str]), 'A[int, float, str]')
+
+ G = A[int, Unpack[Ts]]
+ self.assertEndsWith(repr(G), 'A[int, *Ts]')
+ self.assertEndsWith(repr(G[()]), 'A[int]')
+ self.assertEndsWith(repr(G[float]), 'A[int, float]')
+ self.assertEndsWith(repr(G[float, str]), 'A[int, float, str]')
+
+ H = A[int, *Ts, str]
+ self.assertEndsWith(repr(H), 'A[int, *Ts, str]')
+ self.assertEndsWith(repr(H[()]), 'A[int, str]')
+ self.assertEndsWith(repr(H[float]), 'A[int, float, str]')
+ self.assertEndsWith(repr(H[float, str]), 'A[int, float, str, str]')
+
+ I = A[int, Unpack[Ts], str]
+ self.assertEndsWith(repr(I), 'A[int, *Ts, str]')
+ self.assertEndsWith(repr(I[()]), 'A[int, str]')
+ self.assertEndsWith(repr(I[float]), 'A[int, float, str]')
+ self.assertEndsWith(repr(I[float, str]), 'A[int, float, str, str]')
+
+ J = A[*Ts, *tuple[str, ...]]
+ self.assertEndsWith(repr(J), 'A[*Ts, *tuple[str, ...]]')
+ self.assertEndsWith(repr(J[()]), 'A[*tuple[str, ...]]')
+ self.assertEndsWith(repr(J[float]), 'A[float, *tuple[str, ...]]')
+ self.assertEndsWith(repr(J[float, str]), 'A[float, str, *tuple[str, ...]]')
+
+ K = A[Unpack[Ts], Unpack[Tuple[str, ...]]]
+ self.assertEndsWith(repr(K), 'A[*Ts, *typing.Tuple[str, ...]]')
+ self.assertEndsWith(repr(K[()]), 'A[*typing.Tuple[str, ...]]')
+ self.assertEndsWith(repr(K[float]), 'A[float, *typing.Tuple[str, ...]]')
+ self.assertEndsWith(repr(K[float, str]), 'A[float, str, *typing.Tuple[str, ...]]')
def test_cannot_subclass_class(self):
with self.assertRaises(TypeError):
Ts = TypeVarTuple('Ts')
with self.assertRaises(TypeError):
class C(Ts): pass
- with self.assertRaises(TypeError):
+ with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE):
+ class C(type(Unpack)): pass
+ with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE):
+ class C(type(*Ts)): pass
+ with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE):
+ class C(type(Unpack[Ts])): pass
+ with self.assertRaisesRegex(TypeError,
+ r'Cannot subclass typing\.Unpack'):
+ class C(Unpack): pass
+ with self.assertRaisesRegex(TypeError, r'Cannot subclass \*Ts'):
+ class C(*Ts): pass
+ with self.assertRaisesRegex(TypeError, r'Cannot subclass \*Ts'):
class C(Unpack[Ts]): pass
def test_variadic_class_args_are_correct(self):
T = TypeVar('T')
Ts = TypeVarTuple('Ts')
- class A(Generic[Unpack[Ts]]): pass
- B = A[()]
- self.assertEqual(B.__args__, ())
- C = A[int]
- self.assertEqual(C.__args__, (int,))
- D = A[int, str]
- self.assertEqual(D.__args__, (int, str))
- E = A[T]
- self.assertEqual(E.__args__, (T,))
- F = A[Unpack[Ts]]
- self.assertEqual(F.__args__, (Unpack[Ts],))
- G = A[T, Unpack[Ts]]
- self.assertEqual(G.__args__, (T, Unpack[Ts]))
- H = A[Unpack[Ts], T]
- self.assertEqual(H.__args__, (Unpack[Ts], T))
+ class A(Generic[*Ts]): pass
+ class B(Generic[Unpack[Ts]]): pass
+
+ C = A[()]
+ D = B[()]
+ self.assertEqual(C.__args__, ())
+ self.assertEqual(D.__args__, ())
+
+ E = A[int]
+ F = B[int]
+ self.assertEqual(E.__args__, (int,))
+ self.assertEqual(F.__args__, (int,))
+
+ G = A[int, str]
+ H = B[int, str]
+ self.assertEqual(G.__args__, (int, str))
+ self.assertEqual(H.__args__, (int, str))
+
+ I = A[T]
+ J = B[T]
+ self.assertEqual(I.__args__, (T,))
+ self.assertEqual(J.__args__, (T,))
+
+ K = A[*Ts]
+ L = B[Unpack[Ts]]
+ self.assertEqual(K.__args__, (*Ts,))
+ self.assertEqual(L.__args__, (Unpack[Ts],))
+
+ M = A[T, *Ts]
+ N = B[T, Unpack[Ts]]
+ self.assertEqual(M.__args__, (T, *Ts))
+ self.assertEqual(N.__args__, (T, Unpack[Ts]))
+
+ O = A[*Ts, T]
+ P = B[Unpack[Ts], T]
+ self.assertEqual(O.__args__, (*Ts, T))
+ self.assertEqual(P.__args__, (Unpack[Ts], T))
def test_variadic_class_origin_is_correct(self):
Ts = TypeVarTuple('Ts')
+
+ class C(Generic[*Ts]): pass
+ self.assertIs(C[int].__origin__, C)
+ self.assertIs(C[T].__origin__, C)
+ self.assertIs(C[Unpack[Ts]].__origin__, C)
+
class D(Generic[Unpack[Ts]]): pass
self.assertIs(D[int].__origin__, D)
self.assertIs(D[T].__origin__, D)
def test_tuple_args_are_correct(self):
Ts = TypeVarTuple('Ts')
- self.assertEqual(tuple[Unpack[Ts]].__args__, (Unpack[Ts],))
+ self.assertEqual(tuple[*Ts].__args__, (*Ts,))
self.assertEqual(Tuple[Unpack[Ts]].__args__, (Unpack[Ts],))
- self.assertEqual(tuple[Unpack[Ts], int].__args__, (Unpack[Ts], int))
+ self.assertEqual(tuple[*Ts, int].__args__, (*Ts, int))
self.assertEqual(Tuple[Unpack[Ts], int].__args__, (Unpack[Ts], int))
- self.assertEqual(tuple[int, Unpack[Ts]].__args__, (int, Unpack[Ts]))
+ self.assertEqual(tuple[int, *Ts].__args__, (int, *Ts))
self.assertEqual(Tuple[int, Unpack[Ts]].__args__, (int, Unpack[Ts]))
- self.assertEqual(tuple[int, Unpack[Ts], str].__args__,
- (int, Unpack[Ts], str))
+ self.assertEqual(tuple[int, *Ts, str].__args__,
+ (int, *Ts, str))
self.assertEqual(Tuple[int, Unpack[Ts], str].__args__,
(int, Unpack[Ts], str))
- self.assertEqual(tuple[Unpack[Ts], int].__args__, (Unpack[Ts], int))
+ self.assertEqual(tuple[*Ts, int].__args__, (*Ts, int))
self.assertEqual(Tuple[Unpack[Ts]].__args__, (Unpack[Ts],))
def test_callable_args_are_correct(self):
# TypeVarTuple in the arguments
- a = Callable[[Unpack[Ts]], None]
- self.assertEqual(a.__args__, (Unpack[Ts], type(None)))
+ a = Callable[[*Ts], None]
+ b = Callable[[Unpack[Ts]], None]
+ self.assertEqual(a.__args__, (*Ts, type(None)))
+ self.assertEqual(b.__args__, (Unpack[Ts], type(None)))
- b = Callable[[int, Unpack[Ts]], None]
- self.assertEqual(b.__args__, (int, Unpack[Ts], type(None)))
+ c = Callable[[int, *Ts], None]
+ d = Callable[[int, Unpack[Ts]], None]
+ self.assertEqual(c.__args__, (int, *Ts, type(None)))
+ self.assertEqual(d.__args__, (int, Unpack[Ts], type(None)))
- c = Callable[[Unpack[Ts], int], None]
- self.assertEqual(c.__args__, (Unpack[Ts], int, type(None)))
+ e = Callable[[*Ts, int], None]
+ f = Callable[[Unpack[Ts], int], None]
+ self.assertEqual(e.__args__, (*Ts, int, type(None)))
+ self.assertEqual(f.__args__, (Unpack[Ts], int, type(None)))
- d = Callable[[str, Unpack[Ts], int], None]
- self.assertEqual(d.__args__, (str, Unpack[Ts], int, type(None)))
+ g = Callable[[str, *Ts, int], None]
+ h = Callable[[str, Unpack[Ts], int], None]
+ self.assertEqual(g.__args__, (str, *Ts, int, type(None)))
+ self.assertEqual(h.__args__, (str, Unpack[Ts], int, type(None)))
# TypeVarTuple as the return
- e = Callable[[None], Unpack[Ts]]
- self.assertEqual(e.__args__, (type(None), Unpack[Ts]))
+ i = Callable[[None], *Ts]
+ j = Callable[[None], Unpack[Ts]]
+ self.assertEqual(i.__args__, (type(None), *Ts))
+ self.assertEqual(i.__args__, (type(None), Unpack[Ts]))
- f = Callable[[None], tuple[int, Unpack[Ts]]]
- self.assertEqual(f.__args__, (type(None), tuple[int, Unpack[Ts]]))
+ k = Callable[[None], tuple[int, *Ts]]
+ l = Callable[[None], Tuple[int, Unpack[Ts]]]
+ self.assertEqual(k.__args__, (type(None), tuple[int, *Ts]))
+ self.assertEqual(l.__args__, (type(None), Tuple[int, Unpack[Ts]]))
- g = Callable[[None], tuple[Unpack[Ts], int]]
- self.assertEqual(g.__args__, (type(None), tuple[Unpack[Ts], int]))
+ m = Callable[[None], tuple[*Ts, int]]
+ n = Callable[[None], Tuple[Unpack[Ts], int]]
+ self.assertEqual(m.__args__, (type(None), tuple[*Ts, int]))
+ self.assertEqual(n.__args__, (type(None), Tuple[Unpack[Ts], int]))
- h = Callable[[None], tuple[str, Unpack[Ts], int]]
- self.assertEqual(h.__args__, (type(None), tuple[str, Unpack[Ts], int]))
+ o = Callable[[None], tuple[str, *Ts, int]]
+ p = Callable[[None], Tuple[str, Unpack[Ts], int]]
+ self.assertEqual(o.__args__, (type(None), tuple[str, *Ts, int]))
+ self.assertEqual(p.__args__, (type(None), Tuple[str, Unpack[Ts], int]))
# TypeVarTuple in both
- i = Callable[[Unpack[Ts]], Unpack[Ts]]
- self.assertEqual(i.__args__, (Unpack[Ts], Unpack[Ts]))
+ q = Callable[[*Ts], *Ts]
+ r = Callable[[Unpack[Ts]], Unpack[Ts]]
+ self.assertEqual(q.__args__, (*Ts, *Ts))
+ self.assertEqual(r.__args__, (Unpack[Ts], Unpack[Ts]))
- j = Callable[[Unpack[Ts1]], Unpack[Ts2]]
- self.assertEqual(j.__args__, (Unpack[Ts1], Unpack[Ts2]))
+ s = Callable[[*Ts1], *Ts2]
+ u = Callable[[Unpack[Ts1]], Unpack[Ts2]]
+ self.assertEqual(s.__args__, (*Ts1, *Ts2))
+ self.assertEqual(u.__args__, (Unpack[Ts1], Unpack[Ts2]))
def test_variadic_class_with_duplicate_typevartuples_fails(self):
Ts1 = TypeVarTuple('Ts1')
Ts2 = TypeVarTuple('Ts2')
+
+ with self.assertRaises(TypeError):
+ class C(Generic[*Ts1, *Ts1]): pass
with self.assertRaises(TypeError):
class C(Generic[Unpack[Ts1], Unpack[Ts1]]): pass
+
+ with self.assertRaises(TypeError):
+ class C(Generic[*Ts1, *Ts2, *Ts1]): pass
with self.assertRaises(TypeError):
class C(Generic[Unpack[Ts1], Unpack[Ts2], Unpack[Ts1]]): pass
def test_type_concatenation_in_variadic_class_argument_list_succeeds(self):
Ts = TypeVarTuple('Ts')
class C(Generic[Unpack[Ts]]): pass
+
+ C[int, *Ts]
C[int, Unpack[Ts]]
+
+ C[*Ts, int]
C[Unpack[Ts], int]
+
+ C[int, *Ts, str]
C[int, Unpack[Ts], str]
+
+ C[int, bool, *Ts, float, str]
C[int, bool, Unpack[Ts], float, str]
def test_type_concatenation_in_tuple_argument_list_succeeds(self):
Ts = TypeVarTuple('Ts')
- tuple[int, Unpack[Ts]]
- tuple[Unpack[Ts], int]
- tuple[int, Unpack[Ts], str]
- tuple[int, bool, Unpack[Ts], float, str]
+ tuple[int, *Ts]
+ tuple[*Ts, int]
+ tuple[int, *Ts, str]
+ tuple[int, bool, *Ts, float, str]
Tuple[int, Unpack[Ts]]
Tuple[Unpack[Ts], int]
def test_variadic_class_definition_using_concrete_types_fails(self):
Ts = TypeVarTuple('Ts')
with self.assertRaises(TypeError):
+ class F(Generic[*Ts, int]): pass
+ with self.assertRaises(TypeError):
class E(Generic[Unpack[Ts], int]): pass
def test_variadic_class_with_2_typevars_accepts_2_or_more_args(self):
T1 = TypeVar('T1')
T2 = TypeVar('T2')
- class A(Generic[T1, T2, Unpack[Ts]]): pass
+ class A(Generic[T1, T2, *Ts]): pass
A[int, str]
A[int, str, float]
A[int, str, float, bool]
- class B(Generic[T1, Unpack[Ts], T2]): pass
+ class B(Generic[T1, T2, Unpack[Ts]]): pass
B[int, str]
B[int, str, float]
B[int, str, float, bool]
- class C(Generic[Unpack[Ts], T1, T2]): pass
+ class C(Generic[T1, *Ts, T2]): pass
C[int, str]
C[int, str, float]
C[int, str, float, bool]
+ class D(Generic[T1, Unpack[Ts], T2]): pass
+ D[int, str]
+ D[int, str, float]
+ D[int, str, float, bool]
+
+ class E(Generic[*Ts, T1, T2]): pass
+ E[int, str]
+ E[int, str, float]
+ E[int, str, float, bool]
+
+ class F(Generic[Unpack[Ts], T1, T2]): pass
+ F[int, str]
+ F[int, str, float]
+ F[int, str, float, bool]
+
def test_variadic_args_annotations_are_correct(self):
Ts = TypeVarTuple('Ts')
+
def f(*args: Unpack[Ts]): pass
+ def g(*args: *Ts): pass
self.assertEqual(f.__annotations__, {'args': Unpack[Ts]})
+ self.assertEqual(g.__annotations__, {'args': (*Ts,)[0]})
def test_variadic_args_with_ellipsis_annotations_are_correct(self):
Ts = TypeVarTuple('Ts')
- def a(*args: Unpack[tuple[int, ...]]): pass
+ def a(*args: *tuple[int, ...]): pass
self.assertEqual(a.__annotations__,
- {'args': Unpack[tuple[int, ...]]})
+ {'args': (*tuple[int, ...],)[0]})
def b(*args: Unpack[Tuple[int, ...]]): pass
self.assertEqual(b.__annotations__,
def test_concatenation_in_variadic_args_annotations_are_correct(self):
Ts = TypeVarTuple('Ts')
- # Unpacking using `Unpack`, native `tuple` type
+ # Unpacking using `*`, native `tuple` type
- def a(*args: Unpack[tuple[int, Unpack[Ts]]]): pass
+ def a(*args: *tuple[int, *Ts]): pass
self.assertEqual(
a.__annotations__,
- {'args': Unpack[tuple[int, Unpack[Ts]]]},
+ {'args': (*tuple[int, *Ts],)[0]},
)
- def b(*args: Unpack[tuple[Unpack[Ts], int]]): pass
+ def b(*args: *tuple[*Ts, int]): pass
self.assertEqual(
b.__annotations__,
- {'args': Unpack[tuple[Unpack[Ts], int]]},
+ {'args': (*tuple[*Ts, int],)[0]},
)
- def c(*args: Unpack[tuple[str, Unpack[Ts], int]]): pass
+ def c(*args: *tuple[str, *Ts, int]): pass
self.assertEqual(
c.__annotations__,
- {'args': Unpack[tuple[str, Unpack[Ts], int]]},
+ {'args': (*tuple[str, *Ts, int],)[0]},
)
- def d(*args: Unpack[tuple[int, bool, Unpack[Ts], float, str]]): pass
+ def d(*args: *tuple[int, bool, *Ts, float, str]): pass
self.assertEqual(
d.__annotations__,
- {'args': Unpack[tuple[int, bool, Unpack[Ts], float, str]]},
+ {'args': (*tuple[int, bool, *Ts, float, str],)[0]},
)
# Unpacking using `Unpack`, `Tuple` type from typing.py
def test_variadic_class_same_args_results_in_equalty(self):
Ts = TypeVarTuple('Ts')
- class C(Generic[Unpack[Ts]]): pass
+ class C(Generic[*Ts]): pass
+ class D(Generic[Unpack[Ts]]): pass
self.assertEqual(C[int], C[int])
+ self.assertEqual(D[int], D[int])
Ts1 = TypeVarTuple('Ts1')
Ts2 = TypeVarTuple('Ts2')
+
+ self.assertEqual(
+ C[*Ts1],
+ C[*Ts1],
+ )
+ self.assertEqual(
+ D[Unpack[Ts1]],
+ D[Unpack[Ts1]],
+ )
+
self.assertEqual(
- C[Unpack[Ts1]],
- C[Unpack[Ts1]],
+ C[*Ts1, *Ts2],
+ C[*Ts1, *Ts2],
)
self.assertEqual(
- C[Unpack[Ts1], Unpack[Ts2]],
- C[Unpack[Ts1], Unpack[Ts2]],
+ D[Unpack[Ts1], Unpack[Ts2]],
+ D[Unpack[Ts1], Unpack[Ts2]],
)
+
self.assertEqual(
- C[int, Unpack[Ts1], Unpack[Ts2]],
- C[int, Unpack[Ts1], Unpack[Ts2]],
+ C[int, *Ts1, *Ts2],
+ C[int, *Ts1, *Ts2],
+ )
+ self.assertEqual(
+ D[int, Unpack[Ts1], Unpack[Ts2]],
+ D[int, Unpack[Ts1], Unpack[Ts2]],
)
def test_variadic_class_arg_ordering_matters(self):
Ts = TypeVarTuple('Ts')
- class C(Generic[Unpack[Ts]]): pass
+ class C(Generic[*Ts]): pass
+ class D(Generic[Unpack[Ts]]): pass
self.assertNotEqual(
C[int, str],
C[str, int],
)
+ self.assertNotEqual(
+ D[int, str],
+ D[str, int],
+ )
Ts1 = TypeVarTuple('Ts1')
Ts2 = TypeVarTuple('Ts2')
+
self.assertNotEqual(
- C[Unpack[Ts1], Unpack[Ts2]],
- C[Unpack[Ts2], Unpack[Ts1]],
+ C[*Ts1, *Ts2],
+ C[*Ts2, *Ts1],
+ )
+ self.assertNotEqual(
+ D[Unpack[Ts1], Unpack[Ts2]],
+ D[Unpack[Ts2], Unpack[Ts1]],
)
def test_variadic_class_arg_typevartuple_identity_matters(self):
Ts = TypeVarTuple('Ts')
- class C(Generic[Unpack[Ts]]): pass
Ts1 = TypeVarTuple('Ts1')
Ts2 = TypeVarTuple('Ts2')
- self.assertNotEqual(C[Unpack[Ts1]], C[Unpack[Ts2]])
+
+ class C(Generic[*Ts]): pass
+ class D(Generic[Unpack[Ts]]): pass
+
+ self.assertNotEqual(C[*Ts1], C[*Ts2])
+ self.assertNotEqual(D[Unpack[Ts1]], D[Unpack[Ts2]])
class TypeVarTuplePicklingTests(BaseTestCase):
def test_pickling_then_unpickling_unpacked_results_in_same_identity(self, proto):
global global_Ts # See explanation at start of class.
global_Ts = TypeVarTuple('global_Ts')
- unpacked1 = Unpack[global_Ts]
+
+ unpacked1 = (*global_Ts,)[0]
unpacked2 = pickle.loads(pickle.dumps(unpacked1, proto))
self.assertIs(unpacked1, unpacked2)
+ unpacked3 = Unpack[global_Ts]
+ unpacked4 = pickle.loads(pickle.dumps(unpacked3, proto))
+ self.assertIs(unpacked3, unpacked4)
+
@all_pickle_protocols
def test_pickling_then_unpickling_tuple_with_typevartuple_equality(
self, proto
global_T = TypeVar('global_T')
global_Ts = TypeVarTuple('global_Ts')
- a1 = Tuple[Unpack[global_Ts]]
- a2 = pickle.loads(pickle.dumps(a1, proto))
- self.assertEqual(a1, a2)
+ tuples = [
+ tuple[*global_Ts],
+ Tuple[Unpack[global_Ts]],
- a1 = Tuple[T, Unpack[global_Ts]]
- a2 = pickle.loads(pickle.dumps(a1, proto))
- self.assertEqual(a1, a2)
+ tuple[T, *global_Ts],
+ Tuple[T, Unpack[global_Ts]],
- a1 = Tuple[int, Unpack[global_Ts]]
- a2 = pickle.loads(pickle.dumps(a1, proto))
- self.assertEqual(a1, a2)
+ tuple[int, *global_Ts],
+ Tuple[int, Unpack[global_Ts]],
+ ]
+ for t in tuples:
+ t2 = pickle.loads(pickle.dumps(t, proto))
+ self.assertEqual(t, t2)
class UnionTests(BaseTestCase):
self.assertEqual(x.bar, 'abc')
self.assertEqual(x.x, 1)
self.assertEqual(x.__dict__, {'foo': 42, 'bar': 'abc'})
- s = pickle.dumps(P)
+ s = pickle.dumps(P, proto)
D = pickle.loads(s)
class E:
self.assertEqual(D.__parameters__, ())
- with self.assertRaises(Exception):
+ with self.assertRaises(TypeError):
D[int]
- with self.assertRaises(Exception):
+ with self.assertRaises(TypeError):
D[Any]
- with self.assertRaises(Exception):
+ with self.assertRaises(TypeError):
D[T]
def test_new_with_args(self):
# C version of GenericAlias
self.assertEqual(list[A()].__parameters__, (T,))
+ def test_non_generic_subscript(self):
+ T = TypeVar('T')
+ class G(Generic[T]):
+ pass
+ class A:
+ __parameters__ = (T,)
+
+ for s in (int, G, A, List, list,
+ TypeVar, TypeVarTuple, ParamSpec,
+ types.GenericAlias, types.UnionType):
+
+ for t in Tuple, tuple:
+ with self.subTest(tuple=t, sub=s):
+ self.assertEqual(t[s, T][int], t[s, int])
+ self.assertEqual(t[T, s][int], t[int, s])
+ a = t[s]
+ with self.assertRaises(TypeError):
+ a[int]
+
+ for c in Callable, collections.abc.Callable:
+ with self.subTest(callable=c, sub=s):
+ self.assertEqual(c[[s], T][int], c[[s], int])
+ self.assertEqual(c[[T], s][int], c[[int], s])
+ a = c[[s], s]
+ with self.assertRaises(TypeError):
+ a[int]
+
+
class ClassVarTests(BaseTestCase):
def test_basics(self):
class OverloadTests(BaseTestCase):
def test_overload_fails(self):
- with self.assertRaises(RuntimeError):
+ with self.assertRaises(NotImplementedError):
@overload
def blah():
blah()
+ @cpython_only # gh-98713
+ def test_overload_on_compiled_functions(self):
+ with patch("typing._overload_registry",
+ defaultdict(lambda: defaultdict(dict))):
+ # The registry starts out empty:
+ self.assertEqual(typing._overload_registry, {})
+
+ # This should just not fail:
+ overload(sum)
+ overload(print)
+
+ # No overloads are recorded (but, it still has a side-effect):
+ self.assertEqual(typing.get_overloads(sum), [])
+ self.assertEqual(typing.get_overloads(print), [])
+
def set_up_overloads(self):
def blah():
pass
other_overload = some_other_func
def some_other_func(): pass
self.assertEqual(list(get_overloads(some_other_func)), [other_overload])
+ # Unrelated function still has no overloads:
+ def not_overloaded(): pass
+ self.assertEqual(list(get_overloads(not_overloaded)), [])
# Make sure that after we clear all overloads, the registry is
# completely empty.
class GetUtilitiesTestCase(TestCase):
def test_get_origin(self):
T = TypeVar('T')
+ Ts = TypeVarTuple('Ts')
P = ParamSpec('P')
class C(Generic[T]): pass
self.assertIs(get_origin(C[int]), C)
self.assertIs(get_origin(P.kwargs), P)
self.assertIs(get_origin(Required[int]), Required)
self.assertIs(get_origin(NotRequired[int]), NotRequired)
+ self.assertIs(get_origin((*Ts,)[0]), Unpack)
+ self.assertIs(get_origin(Unpack[Ts]), Unpack)
+ self.assertIs(get_origin((*tuple[*Ts],)[0]), tuple)
+ self.assertIs(get_origin(Unpack[Tuple[Unpack[Ts]]]), Unpack)
def test_get_args(self):
T = TypeVar('T')
self.assertEqual(get_args(list | str), (list, str))
self.assertEqual(get_args(Required[int]), (int,))
self.assertEqual(get_args(NotRequired[int]), (int,))
+ self.assertEqual(get_args(TypeAlias), ())
+ self.assertEqual(get_args(TypeGuard[int]), (int,))
+ Ts = TypeVarTuple('Ts')
+ self.assertEqual(get_args(Ts), ())
+ self.assertEqual(get_args((*Ts,)[0]), (Ts,))
+ self.assertEqual(get_args(Unpack[Ts]), (Ts,))
+ self.assertEqual(get_args(tuple[*Ts]), (*Ts,))
+ self.assertEqual(get_args(tuple[Unpack[Ts]]), (Unpack[Ts],))
+ self.assertEqual(get_args((*tuple[*Ts],)[0]), (*Ts,))
+ self.assertEqual(get_args(Unpack[tuple[Unpack[Ts]]]), (tuple[Unpack[Ts]],))
class CollectionsAbcTests(BaseTestCase):
T1 = TypeVar('T1')
T2 = TypeVar('T2')
- A = Annotated[Tuple[Unpack[Ts]], dec]
- self.assertEqual(A[int], Annotated[Tuple[int], dec])
- self.assertEqual(A[str, int], Annotated[Tuple[str, int], dec])
+ A = Annotated[tuple[*Ts], dec]
+ self.assertEqual(A[int], Annotated[tuple[int], dec])
+ self.assertEqual(A[str, int], Annotated[tuple[str, int], dec])
with self.assertRaises(TypeError):
- Annotated[Unpack[Ts], dec]
+ Annotated[*Ts, dec]
- B = Annotated[Tuple[T, Unpack[Ts]], dec]
+ B = Annotated[Tuple[Unpack[Ts]], dec]
self.assertEqual(B[int], Annotated[Tuple[int], dec])
- self.assertEqual(B[int, str], Annotated[Tuple[int, str], dec])
- self.assertEqual(
- B[int, str, float],
- Annotated[Tuple[int, str, float], dec]
- )
+ self.assertEqual(B[str, int], Annotated[Tuple[str, int], dec])
with self.assertRaises(TypeError):
- B[()]
+ Annotated[Unpack[Ts], dec]
- C = Annotated[Tuple[Unpack[Ts], T], dec]
- self.assertEqual(C[int], Annotated[Tuple[int], dec])
- self.assertEqual(C[int, str], Annotated[Tuple[int, str], dec])
+ C = Annotated[tuple[T, *Ts], dec]
+ self.assertEqual(C[int], Annotated[tuple[int], dec])
+ self.assertEqual(C[int, str], Annotated[tuple[int, str], dec])
self.assertEqual(
C[int, str, float],
- Annotated[Tuple[int, str, float], dec]
+ Annotated[tuple[int, str, float], dec]
)
with self.assertRaises(TypeError):
C[()]
- D = Annotated[Tuple[T1, Unpack[Ts], T2], dec]
+ D = Annotated[Tuple[T, Unpack[Ts]], dec]
+ self.assertEqual(D[int], Annotated[Tuple[int], dec])
self.assertEqual(D[int, str], Annotated[Tuple[int, str], dec])
self.assertEqual(
D[int, str, float],
Annotated[Tuple[int, str, float], dec]
)
+ with self.assertRaises(TypeError):
+ D[()]
+
+ E = Annotated[tuple[*Ts, T], dec]
+ self.assertEqual(E[int], Annotated[tuple[int], dec])
+ self.assertEqual(E[int, str], Annotated[tuple[int, str], dec])
self.assertEqual(
- D[int, str, bool, float],
- Annotated[Tuple[int, str, bool, float], dec]
+ E[int, str, float],
+ Annotated[tuple[int, str, float], dec]
)
with self.assertRaises(TypeError):
- D[int]
+ E[()]
- # Now let's try creating an alias from an alias.
-
- Ts2 = TypeVarTuple('Ts2')
- T3 = TypeVar('T3')
- T4 = TypeVar('T4')
+ F = Annotated[Tuple[Unpack[Ts], T], dec]
+ self.assertEqual(F[int], Annotated[Tuple[int], dec])
+ self.assertEqual(F[int, str], Annotated[Tuple[int, str], dec])
+ self.assertEqual(
+ F[int, str, float],
+ Annotated[Tuple[int, str, float], dec]
+ )
+ with self.assertRaises(TypeError):
+ F[()]
- E = D[T3, Unpack[Ts2], T4]
+ G = Annotated[tuple[T1, *Ts, T2], dec]
+ self.assertEqual(G[int, str], Annotated[tuple[int, str], dec])
self.assertEqual(
- E,
- Annotated[Tuple[T3, Unpack[Ts2], T4], dec]
+ G[int, str, float],
+ Annotated[tuple[int, str, float], dec]
)
self.assertEqual(
- E[int, str], Annotated[Tuple[int, str], dec]
+ G[int, str, bool, float],
+ Annotated[tuple[int, str, bool, float], dec]
)
+ with self.assertRaises(TypeError):
+ G[int]
+
+ H = Annotated[Tuple[T1, Unpack[Ts], T2], dec]
+ self.assertEqual(H[int, str], Annotated[Tuple[int, str], dec])
self.assertEqual(
- E[int, str, float],
+ H[int, str, float],
Annotated[Tuple[int, str, float], dec]
)
self.assertEqual(
- E[int, str, bool, float],
+ H[int, str, bool, float],
Annotated[Tuple[int, str, bool, float], dec]
)
with self.assertRaises(TypeError):
- E[int]
+ H[int]
+
+ # Now let's try creating an alias from an alias.
+
+ Ts2 = TypeVarTuple('Ts2')
+ T3 = TypeVar('T3')
+ T4 = TypeVar('T4')
+
+ # G is Annotated[tuple[T1, *Ts, T2], dec].
+ I = G[T3, *Ts2, T4]
+ J = G[T3, Unpack[Ts2], T4]
+
+ for x, y in [
+ (I, Annotated[tuple[T3, *Ts2, T4], dec]),
+ (J, Annotated[tuple[T3, Unpack[Ts2], T4], dec]),
+ (I[int, str], Annotated[tuple[int, str], dec]),
+ (J[int, str], Annotated[tuple[int, str], dec]),
+ (I[int, str, float], Annotated[tuple[int, str, float], dec]),
+ (J[int, str, float], Annotated[tuple[int, str, float], dec]),
+ (I[int, str, bool, float],
+ Annotated[tuple[int, str, bool, float], dec]),
+ (J[int, str, bool, float],
+ Annotated[tuple[int, str, bool, float], dec]),
+ ]:
+ self.assertEqual(x, y)
+
+ with self.assertRaises(TypeError):
+ I[int]
+ with self.assertRaises(TypeError):
+ J[int]
def test_annotated_in_other_types(self):
X = List[Annotated[T, 5]]
self.assertEqual(G1.__args__, ((int, str), (bytes,)))
self.assertEqual(G2.__args__, ((int,), (str, bytes)))
+ def test_typevartuple_and_paramspecs_in_user_generics(self):
+ Ts = TypeVarTuple("Ts")
+ P = ParamSpec("P")
+
+ class X(Generic[*Ts, P]):
+ f: Callable[P, int]
+ g: Tuple[*Ts]
+
+ G1 = X[int, [bytes]]
+ self.assertEqual(G1.__args__, (int, (bytes,)))
+ G2 = X[int, str, [bytes]]
+ self.assertEqual(G2.__args__, (int, str, (bytes,)))
+ G3 = X[[bytes]]
+ self.assertEqual(G3.__args__, ((bytes,),))
+ G4 = X[[]]
+ self.assertEqual(G4.__args__, ((),))
+ with self.assertRaises(TypeError):
+ X[()]
+
+ class Y(Generic[P, *Ts]):
+ f: Callable[P, int]
+ g: Tuple[*Ts]
+
+ G1 = Y[[bytes], int]
+ self.assertEqual(G1.__args__, ((bytes,), int))
+ G2 = Y[[bytes], int, str]
+ self.assertEqual(G2.__args__, ((bytes,), int, str))
+ G3 = Y[[bytes]]
+ self.assertEqual(G3.__args__, ((bytes,),))
+ G4 = Y[[]]
+ self.assertEqual(G4.__args__, ((),))
+ with self.assertRaises(TypeError):
+ Y[()]
+
+ def test_typevartuple_and_paramspecs_in_generic_aliases(self):
+ P = ParamSpec('P')
+ T = TypeVar('T')
+ Ts = TypeVarTuple('Ts')
+
+ for C in Callable, collections.abc.Callable:
+ with self.subTest(generic=C):
+ A = C[P, Tuple[*Ts]]
+ B = A[[int, str], bytes, float]
+ self.assertEqual(B.__args__, (int, str, Tuple[bytes, float]))
+
+ class X(Generic[T, P]):
+ pass
+
+ A = X[Tuple[*Ts], P]
+ B = A[bytes, float, [int, str]]
+ self.assertEqual(B.__args__, (Tuple[bytes, float], (int, str,)))
+
+ class Y(Generic[P, T]):
+ pass
+
+ A = Y[P, Tuple[*Ts]]
+ B = A[[int, str], bytes, float]
+ self.assertEqual(B.__args__, ((int, str,), Tuple[bytes, float]))
+
def test_var_substitution(self):
T = TypeVar("T")
P = ParamSpec("P")
import unicodedata
import unittest
import warnings
-from test.support import import_helper
from test.support import warnings_helper
from test import support, string_tests
from test.support.script_helper import assert_python_failure
self.checkequalnofix(9, 'abcdefghiabc', 'find', 'abc', 1)
self.checkequalnofix(-1, 'abcdefghiabc', 'find', 'def', 4)
+ # test utf-8 non-ascii char
+ self.checkequal(0, 'тест', 'find', 'т')
+ self.checkequal(3, 'тест', 'find', 'т', 1)
+ self.checkequal(-1, 'тест', 'find', 'т', 1, 3)
+ self.checkequal(-1, 'тест', 'find', 'e') # english `e`
+ # test utf-8 non-ascii slice
+ self.checkequal(1, 'тест тест', 'find', 'ес')
+ self.checkequal(1, 'тест тест', 'find', 'ес', 1)
+ self.checkequal(1, 'тест тест', 'find', 'ес', 1, 3)
+ self.checkequal(6, 'тест тест', 'find', 'ес', 2)
+ self.checkequal(-1, 'тест тест', 'find', 'ес', 6, 7)
+ self.checkequal(-1, 'тест тест', 'find', 'ес', 7)
+ self.checkequal(-1, 'тест тест', 'find', 'ec') # english `ec`
+
self.assertRaises(TypeError, 'hello'.find)
self.assertRaises(TypeError, 'hello'.find, 42)
# test mixed kinds
self.checkequalnofix(9, 'abcdefghiabc', 'rfind', 'abc')
self.checkequalnofix(12, 'abcdefghiabc', 'rfind', '')
self.checkequalnofix(12, 'abcdefghiabc', 'rfind', '')
+ # test utf-8 non-ascii char
+ self.checkequal(1, 'тест', 'rfind', 'е')
+ self.checkequal(1, 'тест', 'rfind', 'е', 1)
+ self.checkequal(-1, 'тест', 'rfind', 'е', 2)
+ self.checkequal(-1, 'тест', 'rfind', 'e') # english `e`
+ # test utf-8 non-ascii slice
+ self.checkequal(6, 'тест тест', 'rfind', 'ес')
+ self.checkequal(6, 'тест тест', 'rfind', 'ес', 1)
+ self.checkequal(1, 'тест тест', 'rfind', 'ес', 1, 3)
+ self.checkequal(6, 'тест тест', 'rfind', 'ес', 2)
+ self.checkequal(-1, 'тест тест', 'rfind', 'ес', 6, 7)
+ self.checkequal(-1, 'тест тест', 'rfind', 'ес', 7)
+ self.checkequal(-1, 'тест тест', 'rfind', 'ec') # english `ec`
# test mixed kinds
self.checkequal(0, 'a' + '\u0102' * 100, 'rfind', 'a')
self.checkequal(0, 'a' + '\U00100304' * 100, 'rfind', 'a')
def test_rsplit(self):
string_tests.CommonTest.test_rsplit(self)
# test mixed kinds
- for left, right in ('ba', '\u0101\u0100', '\U00010301\U00010300'):
+ for left, right in ('ba', 'юё', '\u0101\u0100', '\U00010301\U00010300'):
left *= 9
right *= 9
- for delim in ('c', '\u0102', '\U00010302'):
+ for delim in ('c', 'ы', '\u0102', '\U00010302'):
self.checkequal([left + right],
left + right, 'rsplit', delim)
self.checkequal([left, right],
self.checkequal([left, right],
left + delim * 2 + right, 'rsplit', delim *2)
+ # Check `None` as well:
+ self.checkequal([left + right],
+ left + right, 'rsplit', None)
+
def test_partition(self):
string_tests.MixinStrUnicodeUserStringTest.test_partition(self)
# test mixed kinds
self.assertEqual(proc.rc, 10, proc)
-class CAPITest(unittest.TestCase):
-
- # Test PyUnicode_FromFormat()
- def test_from_format(self):
- import_helper.import_module('ctypes')
- from ctypes import (
- c_char_p,
- pythonapi, py_object, sizeof,
- c_int, c_long, c_longlong, c_ssize_t,
- c_uint, c_ulong, c_ulonglong, c_size_t, c_void_p)
- name = "PyUnicode_FromFormat"
- _PyUnicode_FromFormat = getattr(pythonapi, name)
- _PyUnicode_FromFormat.argtypes = (c_char_p,)
- _PyUnicode_FromFormat.restype = py_object
-
- def PyUnicode_FromFormat(format, *args):
- cargs = tuple(
- py_object(arg) if isinstance(arg, str) else arg
- for arg in args)
- return _PyUnicode_FromFormat(format, *cargs)
-
- def check_format(expected, format, *args):
- text = PyUnicode_FromFormat(format, *args)
- self.assertEqual(expected, text)
-
- # ascii format, non-ascii argument
- check_format('ascii\x7f=unicode\xe9',
- b'ascii\x7f=%U', 'unicode\xe9')
-
- # non-ascii format, ascii argument: ensure that PyUnicode_FromFormatV()
- # raises an error
- self.assertRaisesRegex(ValueError,
- r'^PyUnicode_FromFormatV\(\) expects an ASCII-encoded format '
- 'string, got a non-ASCII byte: 0xe9$',
- PyUnicode_FromFormat, b'unicode\xe9=%s', 'ascii')
-
- # test "%c"
- check_format('\uabcd',
- b'%c', c_int(0xabcd))
- check_format('\U0010ffff',
- b'%c', c_int(0x10ffff))
- with self.assertRaises(OverflowError):
- PyUnicode_FromFormat(b'%c', c_int(0x110000))
- # Issue #18183
- check_format('\U00010000\U00100000',
- b'%c%c', c_int(0x10000), c_int(0x100000))
-
- # test "%"
- check_format('%',
- b'%')
- check_format('%',
- b'%%')
- check_format('%s',
- b'%%s')
- check_format('[%]',
- b'[%%]')
- check_format('%abc',
- b'%%%s', b'abc')
-
- # truncated string
- check_format('abc',
- b'%.3s', b'abcdef')
- check_format('abc[\ufffd',
- b'%.5s', 'abc[\u20ac]'.encode('utf8'))
- check_format("'\\u20acABC'",
- b'%A', '\u20acABC')
- check_format("'\\u20",
- b'%.5A', '\u20acABCDEF')
- check_format("'\u20acABC'",
- b'%R', '\u20acABC')
- check_format("'\u20acA",
- b'%.3R', '\u20acABCDEF')
- check_format('\u20acAB',
- b'%.3S', '\u20acABCDEF')
- check_format('\u20acAB',
- b'%.3U', '\u20acABCDEF')
- check_format('\u20acAB',
- b'%.3V', '\u20acABCDEF', None)
- check_format('abc[\ufffd',
- b'%.5V', None, 'abc[\u20ac]'.encode('utf8'))
-
- # following tests comes from #7330
- # test width modifier and precision modifier with %S
- check_format("repr= abc",
- b'repr=%5S', 'abc')
- check_format("repr=ab",
- b'repr=%.2S', 'abc')
- check_format("repr= ab",
- b'repr=%5.2S', 'abc')
-
- # test width modifier and precision modifier with %R
- check_format("repr= 'abc'",
- b'repr=%8R', 'abc')
- check_format("repr='ab",
- b'repr=%.3R', 'abc')
- check_format("repr= 'ab",
- b'repr=%5.3R', 'abc')
-
- # test width modifier and precision modifier with %A
- check_format("repr= 'abc'",
- b'repr=%8A', 'abc')
- check_format("repr='ab",
- b'repr=%.3A', 'abc')
- check_format("repr= 'ab",
- b'repr=%5.3A', 'abc')
-
- # test width modifier and precision modifier with %s
- check_format("repr= abc",
- b'repr=%5s', b'abc')
- check_format("repr=ab",
- b'repr=%.2s', b'abc')
- check_format("repr= ab",
- b'repr=%5.2s', b'abc')
-
- # test width modifier and precision modifier with %U
- check_format("repr= abc",
- b'repr=%5U', 'abc')
- check_format("repr=ab",
- b'repr=%.2U', 'abc')
- check_format("repr= ab",
- b'repr=%5.2U', 'abc')
-
- # test width modifier and precision modifier with %V
- check_format("repr= abc",
- b'repr=%5V', 'abc', b'123')
- check_format("repr=ab",
- b'repr=%.2V', 'abc', b'123')
- check_format("repr= ab",
- b'repr=%5.2V', 'abc', b'123')
- check_format("repr= 123",
- b'repr=%5V', None, b'123')
- check_format("repr=12",
- b'repr=%.2V', None, b'123')
- check_format("repr= 12",
- b'repr=%5.2V', None, b'123')
-
- # test integer formats (%i, %d, %u)
- check_format('010',
- b'%03i', c_int(10))
- check_format('0010',
- b'%0.4i', c_int(10))
- check_format('-123',
- b'%i', c_int(-123))
- check_format('-123',
- b'%li', c_long(-123))
- check_format('-123',
- b'%lli', c_longlong(-123))
- check_format('-123',
- b'%zi', c_ssize_t(-123))
-
- check_format('-123',
- b'%d', c_int(-123))
- check_format('-123',
- b'%ld', c_long(-123))
- check_format('-123',
- b'%lld', c_longlong(-123))
- check_format('-123',
- b'%zd', c_ssize_t(-123))
-
- check_format('123',
- b'%u', c_uint(123))
- check_format('123',
- b'%lu', c_ulong(123))
- check_format('123',
- b'%llu', c_ulonglong(123))
- check_format('123',
- b'%zu', c_size_t(123))
-
- # test long output
- min_longlong = -(2 ** (8 * sizeof(c_longlong) - 1))
- max_longlong = -min_longlong - 1
- check_format(str(min_longlong),
- b'%lld', c_longlong(min_longlong))
- check_format(str(max_longlong),
- b'%lld', c_longlong(max_longlong))
- max_ulonglong = 2 ** (8 * sizeof(c_ulonglong)) - 1
- check_format(str(max_ulonglong),
- b'%llu', c_ulonglong(max_ulonglong))
- PyUnicode_FromFormat(b'%p', c_void_p(-1))
-
- # test padding (width and/or precision)
- check_format('123'.rjust(10, '0'),
- b'%010i', c_int(123))
- check_format('123'.rjust(100),
- b'%100i', c_int(123))
- check_format('123'.rjust(100, '0'),
- b'%.100i', c_int(123))
- check_format('123'.rjust(80, '0').rjust(100),
- b'%100.80i', c_int(123))
-
- check_format('123'.rjust(10, '0'),
- b'%010u', c_uint(123))
- check_format('123'.rjust(100),
- b'%100u', c_uint(123))
- check_format('123'.rjust(100, '0'),
- b'%.100u', c_uint(123))
- check_format('123'.rjust(80, '0').rjust(100),
- b'%100.80u', c_uint(123))
-
- check_format('123'.rjust(10, '0'),
- b'%010x', c_int(0x123))
- check_format('123'.rjust(100),
- b'%100x', c_int(0x123))
- check_format('123'.rjust(100, '0'),
- b'%.100x', c_int(0x123))
- check_format('123'.rjust(80, '0').rjust(100),
- b'%100.80x', c_int(0x123))
-
- # test %A
- check_format(r"%A:'abc\xe9\uabcd\U0010ffff'",
- b'%%A:%A', 'abc\xe9\uabcd\U0010ffff')
-
- # test %V
- check_format('repr=abc',
- b'repr=%V', 'abc', b'xyz')
-
- # Test string decode from parameter of %s using utf-8.
- # b'\xe4\xba\xba\xe6\xb0\x91' is utf-8 encoded byte sequence of
- # '\u4eba\u6c11'
- check_format('repr=\u4eba\u6c11',
- b'repr=%V', None, b'\xe4\xba\xba\xe6\xb0\x91')
-
- #Test replace error handler.
- check_format('repr=abc\ufffd',
- b'repr=%V', None, b'abc\xff')
-
- # not supported: copy the raw format string. these tests are just here
- # to check for crashes and should not be considered as specifications
- check_format('%s',
- b'%1%s', b'abc')
- check_format('%1abc',
- b'%1abc')
- check_format('%+i',
- b'%+i', c_int(10))
- check_format('%.%s',
- b'%.%s', b'abc')
-
- # Issue #33817: empty strings
- check_format('',
- b'')
- check_format('',
- b'%s', b'')
-
- # Test PyUnicode_AsWideChar()
- @support.cpython_only
- @unittest.skipIf(_testcapi is None, 'need _testcapi module')
- def test_aswidechar(self):
- from _testcapi import unicode_aswidechar
- import_helper.import_module('ctypes')
- from ctypes import c_wchar, sizeof
-
- wchar, size = unicode_aswidechar('abcdef', 2)
- self.assertEqual(size, 2)
- self.assertEqual(wchar, 'ab')
-
- wchar, size = unicode_aswidechar('abc', 3)
- self.assertEqual(size, 3)
- self.assertEqual(wchar, 'abc')
-
- wchar, size = unicode_aswidechar('abc', 4)
- self.assertEqual(size, 3)
- self.assertEqual(wchar, 'abc\0')
-
- wchar, size = unicode_aswidechar('abc', 10)
- self.assertEqual(size, 3)
- self.assertEqual(wchar, 'abc\0')
-
- wchar, size = unicode_aswidechar('abc\0def', 20)
- self.assertEqual(size, 7)
- self.assertEqual(wchar, 'abc\0def\0')
-
- nonbmp = chr(0x10ffff)
- if sizeof(c_wchar) == 2:
- buflen = 3
- nchar = 2
- else: # sizeof(c_wchar) == 4
- buflen = 2
- nchar = 1
- wchar, size = unicode_aswidechar(nonbmp, buflen)
- self.assertEqual(size, nchar)
- self.assertEqual(wchar, nonbmp + '\0')
-
- # Test PyUnicode_AsWideCharString()
- @support.cpython_only
- @unittest.skipIf(_testcapi is None, 'need _testcapi module')
- def test_aswidecharstring(self):
- from _testcapi import unicode_aswidecharstring
- import_helper.import_module('ctypes')
- from ctypes import c_wchar, sizeof
-
- wchar, size = unicode_aswidecharstring('abc')
- self.assertEqual(size, 3)
- self.assertEqual(wchar, 'abc\0')
-
- wchar, size = unicode_aswidecharstring('abc\0def')
- self.assertEqual(size, 7)
- self.assertEqual(wchar, 'abc\0def\0')
-
- nonbmp = chr(0x10ffff)
- if sizeof(c_wchar) == 2:
- nchar = 2
- else: # sizeof(c_wchar) == 4
- nchar = 1
- wchar, size = unicode_aswidecharstring(nonbmp)
- self.assertEqual(size, nchar)
- self.assertEqual(wchar, nonbmp + '\0')
-
- # Test PyUnicode_AsUCS4()
- @support.cpython_only
- @unittest.skipIf(_testcapi is None, 'need _testcapi module')
- def test_asucs4(self):
- from _testcapi import unicode_asucs4
- for s in ['abc', '\xa1\xa2', '\u4f60\u597d', 'a\U0001f600',
- 'a\ud800b\udfffc', '\ud834\udd1e']:
- l = len(s)
- self.assertEqual(unicode_asucs4(s, l, True), s+'\0')
- self.assertEqual(unicode_asucs4(s, l, False), s+'\uffff')
- self.assertEqual(unicode_asucs4(s, l+1, True), s+'\0\uffff')
- self.assertEqual(unicode_asucs4(s, l+1, False), s+'\0\uffff')
- self.assertRaises(SystemError, unicode_asucs4, s, l-1, True)
- self.assertRaises(SystemError, unicode_asucs4, s, l-2, False)
- s = '\0'.join([s, s])
- self.assertEqual(unicode_asucs4(s, len(s), True), s+'\0')
- self.assertEqual(unicode_asucs4(s, len(s), False), s+'\uffff')
-
- # Test PyUnicode_AsUTF8()
- @support.cpython_only
- @unittest.skipIf(_testcapi is None, 'need _testcapi module')
- def test_asutf8(self):
- from _testcapi import unicode_asutf8
-
- bmp = '\u0100'
- bmp2 = '\uffff'
- nonbmp = chr(0x10ffff)
-
- self.assertEqual(unicode_asutf8(bmp), b'\xc4\x80')
- self.assertEqual(unicode_asutf8(bmp2), b'\xef\xbf\xbf')
- self.assertEqual(unicode_asutf8(nonbmp), b'\xf4\x8f\xbf\xbf')
- self.assertRaises(UnicodeEncodeError, unicode_asutf8, 'a\ud800b\udfffc')
-
- # Test PyUnicode_AsUTF8AndSize()
- @support.cpython_only
- @unittest.skipIf(_testcapi is None, 'need _testcapi module')
- def test_asutf8andsize(self):
- from _testcapi import unicode_asutf8andsize
-
- bmp = '\u0100'
- bmp2 = '\uffff'
- nonbmp = chr(0x10ffff)
-
- self.assertEqual(unicode_asutf8andsize(bmp), (b'\xc4\x80', 2))
- self.assertEqual(unicode_asutf8andsize(bmp2), (b'\xef\xbf\xbf', 3))
- self.assertEqual(unicode_asutf8andsize(nonbmp), (b'\xf4\x8f\xbf\xbf', 4))
- self.assertRaises(UnicodeEncodeError, unicode_asutf8andsize, 'a\ud800b\udfffc')
-
- # Test PyUnicode_FindChar()
- @support.cpython_only
- @unittest.skipIf(_testcapi is None, 'need _testcapi module')
- def test_findchar(self):
- from _testcapi import unicode_findchar
-
- for str in "\xa1", "\u8000\u8080", "\ud800\udc02", "\U0001f100\U0001f1f1":
- for i, ch in enumerate(str):
- self.assertEqual(unicode_findchar(str, ord(ch), 0, len(str), 1), i)
- self.assertEqual(unicode_findchar(str, ord(ch), 0, len(str), -1), i)
-
- str = "!>_<!"
- self.assertEqual(unicode_findchar(str, 0x110000, 0, len(str), 1), -1)
- self.assertEqual(unicode_findchar(str, 0x110000, 0, len(str), -1), -1)
- # start < end
- self.assertEqual(unicode_findchar(str, ord('!'), 1, len(str)+1, 1), 4)
- self.assertEqual(unicode_findchar(str, ord('!'), 1, len(str)+1, -1), 4)
- # start >= end
- self.assertEqual(unicode_findchar(str, ord('!'), 0, 0, 1), -1)
- self.assertEqual(unicode_findchar(str, ord('!'), len(str), 0, 1), -1)
- # negative
- self.assertEqual(unicode_findchar(str, ord('!'), -len(str), -1, 1), 0)
- self.assertEqual(unicode_findchar(str, ord('!'), -len(str), -1, -1), 0)
-
- # Test PyUnicode_CopyCharacters()
- @support.cpython_only
- @unittest.skipIf(_testcapi is None, 'need _testcapi module')
- def test_copycharacters(self):
- from _testcapi import unicode_copycharacters
-
- strings = [
- 'abcde', '\xa1\xa2\xa3\xa4\xa5',
- '\u4f60\u597d\u4e16\u754c\uff01',
- '\U0001f600\U0001f601\U0001f602\U0001f603\U0001f604'
- ]
-
- for idx, from_ in enumerate(strings):
- # wide -> narrow: exceed maxchar limitation
- for to in strings[:idx]:
- self.assertRaises(
- SystemError,
- unicode_copycharacters, to, 0, from_, 0, 5
- )
- # same kind
- for from_start in range(5):
- self.assertEqual(
- unicode_copycharacters(from_, 0, from_, from_start, 5),
- (from_[from_start:from_start+5].ljust(5, '\0'),
- 5-from_start)
- )
- for to_start in range(5):
- self.assertEqual(
- unicode_copycharacters(from_, to_start, from_, to_start, 5),
- (from_[to_start:to_start+5].rjust(5, '\0'),
- 5-to_start)
- )
- # narrow -> wide
- # Tests omitted since this creates invalid strings.
-
- s = strings[0]
- self.assertRaises(IndexError, unicode_copycharacters, s, 6, s, 0, 5)
- self.assertRaises(IndexError, unicode_copycharacters, s, -1, s, 0, 5)
- self.assertRaises(IndexError, unicode_copycharacters, s, 0, s, 6, 5)
- self.assertRaises(IndexError, unicode_copycharacters, s, 0, s, -1, 5)
- self.assertRaises(SystemError, unicode_copycharacters, s, 1, s, 0, 5)
- self.assertRaises(SystemError, unicode_copycharacters, s, 0, s, 0, -1)
- self.assertRaises(SystemError, unicode_copycharacters, s, 0, b'', 0, 0)
-
- @support.cpython_only
- @unittest.skipIf(_testcapi is None, 'need _testcapi module')
- def test_pep393_utf8_caching_bug(self):
- # Issue #25709: Problem with string concatenation and utf-8 cache
- from _testcapi import getargs_s_hash
- for k in 0x24, 0xa4, 0x20ac, 0x1f40d:
- s = ''
- for i in range(5):
- # Due to CPython specific optimization the 's' string can be
- # resized in-place.
- s += chr(k)
- # Parsing with the "s#" format code calls indirectly
- # PyUnicode_AsUTF8AndSize() which creates the UTF-8
- # encoded string cached in the Unicode object.
- self.assertEqual(getargs_s_hash(s), chr(k).encode() * (i + 1))
- # Check that the second call returns the same result
- self.assertEqual(getargs_s_hash(s), chr(k).encode() * (i + 1))
-
class StringModuleTest(unittest.TestCase):
def test_formatter_parser(self):
def parse(format):
import warnings
from unicodedata import normalize
from test.support import os_helper
+from test import support
filenames = [
# NFKD in Python is useless, because darwin will normalize it later and so
# open(), os.stat(), etc. don't raise any exception.
@unittest.skipIf(sys.platform == 'darwin', 'irrelevant test on Mac OS X')
+ @unittest.skipIf(
+ support.is_emscripten or support.is_wasi,
+ "test fails on Emscripten/WASI when host platform is macOS."
+ )
def test_normalize(self):
files = set(self.files)
others = set()
import unicodedata
import unittest
from test.support import (open_urlresource, requires_resource, script_helper,
- cpython_only, check_disallow_instantiation)
+ cpython_only, check_disallow_instantiation,
+ ResourceDenied)
class UnicodeMethodsTest(unittest.TestCase):
result = h.hexdigest()
self.assertEqual(result, self.expectedchecksum)
+ @requires_resource('cpu')
+ def test_name_inverse_lookup(self):
+ for i in range(sys.maxunicode + 1):
+ char = chr(i)
+ if looked_name := self.db.name(char, None):
+ self.assertEqual(self.db.lookup(looked_name), char)
+
def test_digit(self):
self.assertEqual(self.db.digit('A', None), None)
self.assertEqual(self.db.digit('9'), 9)
except PermissionError:
self.skipTest(f"Permission error when downloading {TESTDATAURL} "
f"into the test data directory")
- except (OSError, HTTPException):
- self.fail(f"Could not retrieve {TESTDATAURL}")
+ except (OSError, HTTPException) as exc:
+ self.skipTest(f"Failed to download {TESTDATAURL}: {exc}")
with testdata:
self.run_normalization_tests(testdata)
"""Check handling of invalid ports."""
for bytes in (False, True):
for parse in (urllib.parse.urlsplit, urllib.parse.urlparse):
- for port in ("foo", "1.5", "-1", "0x10"):
+ for port in ("foo", "1.5", "-1", "0x10", "-0", "1_1", " 1", "1 ", "६"):
with self.subTest(bytes=bytes, parse=parse, port=port):
netloc = "www.example.net:" + port
url = "http://" + netloc
if bytes:
- netloc = netloc.encode("ascii")
- url = url.encode("ascii")
+ if netloc.isascii() and port.isascii():
+ netloc = netloc.encode("ascii")
+ url = url.encode("ascii")
+ else:
+ continue
p = parse(url)
self.assertEqual(p.netloc, netloc)
with self.assertRaises(ValueError):
p.port
+ def test_attributes_bad_scheme(self):
+ """Check handling of invalid schemes."""
+ for bytes in (False, True):
+ for parse in (urllib.parse.urlsplit, urllib.parse.urlparse):
+ for scheme in (".", "+", "-", "0", "http&", "६http"):
+ with self.subTest(bytes=bytes, parse=parse, scheme=scheme):
+ url = scheme + "://www.example.net"
+ if bytes:
+ if url.isascii():
+ url = url.encode("ascii")
+ else:
+ continue
+ p = parse(url)
+ if bytes:
+ self.assertEqual(p.scheme, b"")
+ else:
+ self.assertEqual(p.scheme, "")
+
def test_attributes_without_netloc(self):
# This example is straight from RFC 3261. It looks like it
# should allow the username, hostname, and port to be filled
self.assertEqual(splitnport('127.0.0.1', 55), ('127.0.0.1', 55))
self.assertEqual(splitnport('parrot:cheese'), ('parrot', None))
self.assertEqual(splitnport('parrot:cheese', 55), ('parrot', None))
+ self.assertEqual(splitnport('parrot: +1_0 '), ('parrot', None))
def test_splitquery(self):
# Normal cases are exercised by other tests; ensure that we also
if sys.platform == 'win32':
expect_exe = os.path.normcase(os.path.realpath(expect_exe))
- def pip_cmd_checker(cmd):
+ def pip_cmd_checker(cmd, **kwargs):
cmd[0] = os.path.normcase(cmd[0])
self.assertEqual(
cmd,
)
fake_context = builder.ensure_directories(fake_env_dir)
- with patch('venv.subprocess.check_call', pip_cmd_checker):
+ with patch('venv.subprocess.check_output', pip_cmd_checker):
builder.upgrade_dependencies(fake_context)
@requireVenvCreate
self.assertRaises(ValueError, venv.create, bad_itempath)
self.assertRaises(ValueError, venv.create, pathlib.Path(bad_itempath))
+ @unittest.skipIf(os.name == 'nt', 'not relevant on Windows')
+ @requireVenvCreate
+ def test_zippath_from_non_installed_posix(self):
+ """
+ Test that when create venv from non-installed python, the zip path
+ value is as expected.
+ """
+ rmtree(self.env_dir)
+ # First try to create a non-installed python. It's not a real full
+ # functional non-installed python, but enough for this test.
+ platlibdir = sys.platlibdir
+ non_installed_dir = os.path.realpath(tempfile.mkdtemp())
+ self.addCleanup(rmtree, non_installed_dir)
+ bindir = os.path.join(non_installed_dir, self.bindir)
+ os.mkdir(bindir)
+ shutil.copy2(sys.executable, bindir)
+ libdir = os.path.join(non_installed_dir, platlibdir, self.lib[1])
+ os.makedirs(libdir)
+ landmark = os.path.join(libdir, "os.py")
+ stdlib_zip = "python%d%d.zip" % sys.version_info[:2]
+ zip_landmark = os.path.join(non_installed_dir,
+ platlibdir,
+ stdlib_zip)
+ additional_pythonpath_for_non_installed = []
+ # Copy stdlib files to the non-installed python so venv can
+ # correctly calculate the prefix.
+ for eachpath in sys.path:
+ if eachpath.endswith(".zip"):
+ if os.path.isfile(eachpath):
+ shutil.copyfile(
+ eachpath,
+ os.path.join(non_installed_dir, platlibdir))
+ elif os.path.isfile(os.path.join(eachpath, "os.py")):
+ for name in os.listdir(eachpath):
+ if name == "site-packages":
+ continue
+ fn = os.path.join(eachpath, name)
+ if os.path.isfile(fn):
+ shutil.copy(fn, libdir)
+ elif os.path.isdir(fn):
+ shutil.copytree(fn, os.path.join(libdir, name))
+ else:
+ additional_pythonpath_for_non_installed.append(
+ eachpath)
+ cmd = [os.path.join(non_installed_dir, self.bindir, self.exe),
+ "-m",
+ "venv",
+ "--without-pip",
+ self.env_dir]
+ # Our fake non-installed python is not fully functional because
+ # it cannot find the extensions. Set PYTHONPATH so it can run the
+ # venv module correctly.
+ pythonpath = os.pathsep.join(
+ additional_pythonpath_for_non_installed)
+ # For python built with shared enabled. We need to set
+ # LD_LIBRARY_PATH so the non-installed python can find and link
+ # libpython.so
+ ld_library_path = sysconfig.get_config_var("LIBDIR")
+ if not ld_library_path or sysconfig.is_python_build():
+ ld_library_path = os.path.abspath(os.path.dirname(sys.executable))
+ if sys.platform == 'darwin':
+ ld_library_path_env = "DYLD_LIBRARY_PATH"
+ else:
+ ld_library_path_env = "LD_LIBRARY_PATH"
+ subprocess.check_call(cmd,
+ env={"PYTHONPATH": pythonpath,
+ ld_library_path_env: ld_library_path})
+ envpy = os.path.join(self.env_dir, self.bindir, self.exe)
+ # Now check the venv created from the non-installed python has
+ # correct zip path in pythonpath.
+ cmd = [envpy, '-S', '-c', 'import sys; print(sys.path)']
+ out, err = check_output(cmd)
+ self.assertTrue(zip_landmark.encode() in out)
+
@requireVenvCreate
class EnsurePipTest(BaseTest):
"""Test venv module installation of pip."""
try:
yield
except subprocess.CalledProcessError as exc:
- out = exc.output.decode(errors="replace")
- err = exc.stderr.decode(errors="replace")
+ out = (exc.output or b'').decode(errors="replace")
+ err = (exc.stderr or b'').decode(errors="replace")
self.fail(
f"{exc}\n\n"
f"**Subprocess Output**\n{out}\n\n"
module=self.module) as w:
self.module.resetwarnings()
self.module.filterwarnings("always", category=UserWarning)
- for filename in ("nonascii\xe9\u20ac", "surrogate\udc80"):
+ filenames = ["nonascii\xe9\u20ac"]
+ if not support.is_emscripten:
+ # JavaScript does not like surrogates.
+ # Invalid UTF-8 leading byte 0x80 encountered when
+ # deserializing a UTF-8 string in wasm memory to a JS
+ # string!
+ filenames.append("surrogate\udc80")
+ for filename in filenames:
try:
os.fsencode(filename)
except UnicodeEncodeError:
# deallocation of c2.
del c2
- def test_callback_in_cycle_1(self):
+ def test_callback_in_cycle(self):
import gc
class J(object):
del I, J, II
gc.collect()
- def test_callback_in_cycle_2(self):
+ def test_callback_reachable_one_way(self):
import gc
- # This is just like test_callback_in_cycle_1, except that II is an
- # old-style class. The symptom is different then: an instance of an
- # old-style class looks in its own __dict__ first. 'J' happens to
- # get cleared from I.__dict__ before 'wr', and 'J' was never in II's
- # __dict__, so the attribute isn't found. The difference is that
- # the old-style II doesn't have a NULL __mro__ (it doesn't have any
- # __mro__), so no segfault occurs. Instead it got:
- # test_callback_in_cycle_2 (__main__.ReferencesTestCase) ...
- # Exception exceptions.AttributeError:
- # "II instance has no attribute 'J'" in <bound method II.acallback
- # of <?.II instance at 0x00B9B4B8>> ignored
-
- class J(object):
- pass
-
- class II:
- def acallback(self, ignore):
- self.J
-
- I = II()
- I.J = J
- I.wr = weakref.ref(J, I.acallback)
-
- del I, J, II
- gc.collect()
-
- def test_callback_in_cycle_3(self):
- import gc
-
- # This one broke the first patch that fixed the last two. In this
- # case, the objects reachable from the callback aren't also reachable
+ # This one broke the first patch that fixed the previous test. In this case,
+ # the objects reachable from the callback aren't also reachable
# from the object (c1) *triggering* the callback: you can get to
# c1 from c2, but not vice-versa. The result was that c2's __dict__
# got tp_clear'ed by the time the c2.cb callback got invoked.
del c1, c2
gc.collect()
- def test_callback_in_cycle_4(self):
+ def test_callback_different_classes(self):
import gc
- # Like test_callback_in_cycle_3, except c2 and c1 have different
+ # Like test_callback_reachable_one_way, except c2 and c1 have different
# classes. c2's class (C) isn't reachable from c1 then, so protecting
# objects reachable from the dying object (c1) isn't enough to stop
# c2's class (C) from getting tp_clear'ed before c2.cb is invoked.
--- /dev/null
+# Test ``inspect.formatannotation``
+# https://github.com/python/cpython/issues/96073
+
+from typing import Union, List
+
+ann = Union[List[str], int]
+
+# mock typing._type_repr behaviour
+class A: ...
+
+A.__module__ = 'testModule.typing'
+A.__qualname__ = 'A'
+
+ann1 = Union[List[A], int]
if kw:
cnf = _cnfmerge((cnf, kw))
self.widgetName = widgetName
- BaseWidget._setup(self, master, cnf)
+ self._setup(master, cnf)
if self._tclCommands is None:
self._tclCommands = []
classes = [(k, v) for k, v in cnf.items() if isinstance(k, type)]
return self.tk.call(self._w, 'type', tagOrId) or None
+_checkbutton_count = 0
+
class Checkbutton(Widget):
"""Checkbutton widget which is either in on- or off-state."""
underline, variable, width, wraplength."""
Widget.__init__(self, master, 'checkbutton', cnf, kw)
+ def _setup(self, master, cnf):
+ if not cnf.get('name'):
+ global _checkbutton_count
+ name = self.__class__.__name__.lower()
+ _checkbutton_count += 1
+ cnf['name'] = f'!{name}{_checkbutton_count}'
+ super()._setup(master, cnf)
+
def deselect(self):
"""Put the button in off-state."""
self.tk.call(self._w, 'deselect')
"lines", "xpixels" and "ypixels". There is an additional possible
option "update", which if given then all subsequent options ensure
that any possible out of date information is recalculated."""
- args = ['-%s' % arg for arg in args if not arg.startswith('-')]
+ args = ['-%s' % arg for arg in args]
args += [index1, index2]
res = self.tk.call(self._w, 'count', *args) or None
if res is not None and len(args) <= 3:
def __init__(self, master=None, cnf={}, **kw):
cnf = _cnfmerge((cnf, kw))
self.widgetName = '__dialog__'
- Widget._setup(self, master, cnf)
+ self._setup(master, cnf)
self.num = self.tk.getint(
self.tk.call(
'tk_dialog', self._w,
self.assertEqual(text.search('-test', '1.0', 'end'), '1.2')
self.assertEqual(text.search('test', '1.0', 'end'), '1.3')
+ def test_count(self):
+ # XXX Some assertions do not check against the intended result,
+ # but instead check the current result to prevent regression.
+ text = self.text
+ text.insert('1.0',
+ 'Lorem ipsum dolor sit amet,\n'
+ 'consectetur adipiscing elit,\n'
+ 'sed do eiusmod tempor incididunt\n'
+ 'ut labore et dolore magna aliqua.')
+
+ options = ('chars', 'indices', 'lines',
+ 'displaychars', 'displayindices', 'displaylines',
+ 'xpixels', 'ypixels')
+ if self.wantobjects:
+ self.assertEqual(len(text.count('1.0', 'end', *options)), 8)
+ else:
+ text.count('1.0', 'end', *options)
+ self.assertEqual(text.count('1.0', 'end', 'chars', 'lines'), (124, 4)
+ if self.wantobjects else '124 4')
+ self.assertEqual(text.count('1.3', '4.5', 'chars', 'lines'), (92, 3)
+ if self.wantobjects else '92 3')
+ self.assertEqual(text.count('4.5', '1.3', 'chars', 'lines'), (-92, -3)
+ if self.wantobjects else '-92 -3')
+ self.assertEqual(text.count('1.3', '1.3', 'chars', 'lines'), (0, 0)
+ if self.wantobjects else '0 0')
+ self.assertEqual(text.count('1.0', 'end', 'lines'), (4,)
+ if self.wantobjects else ('4',))
+ self.assertEqual(text.count('end', '1.0', 'lines'), (-4,)
+ if self.wantobjects else ('-4',))
+ self.assertEqual(text.count('1.3', '1.5', 'lines'), None
+ if self.wantobjects else ('0',))
+ self.assertEqual(text.count('1.3', '1.3', 'lines'), None
+ if self.wantobjects else ('0',))
+ self.assertEqual(text.count('1.0', 'end'), (124,) # 'indices' by default
+ if self.wantobjects else ('124',))
+ self.assertRaises(tkinter.TclError, text.count, '1.0', 'end', 'spam')
+ self.assertRaises(tkinter.TclError, text.count, '1.0', 'end', '-lines')
+
+ self.assertIsInstance(text.count('1.3', '1.5', 'ypixels'), tuple)
+ self.assertIsInstance(text.count('1.3', '1.5', 'update', 'ypixels'), int
+ if self.wantobjects else str)
+ self.assertEqual(text.count('1.3', '1.3', 'update', 'ypixels'), None
+ if self.wantobjects else '0')
+ self.assertEqual(text.count('1.3', '1.5', 'update', 'indices'), 2
+ if self.wantobjects else '2')
+ self.assertEqual(text.count('1.3', '1.3', 'update', 'indices'), None
+ if self.wantobjects else '0')
+ self.assertEqual(text.count('1.3', '1.5', 'update'), (2,)
+ if self.wantobjects else ('2',))
+ self.assertEqual(text.count('1.3', '1.3', 'update'), None
+ if self.wantobjects else ('0',))
+
if __name__ == "__main__":
unittest.main()
widget = self.create()
self.checkParams(widget, 'onvalue', 1, 2.3, '', 'any string')
+ def test_unique_variables(self):
+ frames = []
+ buttons = []
+ for i in range(2):
+ f = tkinter.Frame(self.root)
+ f.pack()
+ frames.append(f)
+ for j in 'AB':
+ b = tkinter.Checkbutton(f, text=j)
+ b.pack()
+ buttons.append(b)
+ variables = [str(b['variable']) for b in buttons]
+ self.assertEqual(len(set(variables)), 4, variables)
+
+ def test_same_name(self):
+ f1 = tkinter.Frame(self.root)
+ f2 = tkinter.Frame(self.root)
+ b1 = tkinter.Checkbutton(f1, name='test', text='Test1')
+ b2 = tkinter.Checkbutton(f2, name='test', text='Test2')
+
+ v = tkinter.IntVar(self.root, name='test')
+ b1.select()
+ self.assertEqual(v.get(), 1)
+ b2.deselect()
+ self.assertEqual(v.get(), 0)
+
@add_standard_options(StandardOptionsTests)
class RadiobuttonTest(AbstractLabelTest, unittest.TestCase):
self.checkPixelsParam(widget, 'yscrollincrement',
10, 0, 11.2, 13.6, -10, '0.1i')
+ def _test_option_joinstyle(self, c, factory):
+ for joinstyle in 'bevel', 'miter', 'round':
+ i = factory(joinstyle=joinstyle)
+ self.assertEqual(c.itemcget(i, 'joinstyle'), joinstyle)
+ self.assertRaises(TclError, factory, joinstyle='spam')
+
+ def _test_option_smooth(self, c, factory):
+ for smooth in 1, True, '1', 'true', 'yes', 'on':
+ i = factory(smooth=smooth)
+ self.assertEqual(c.itemcget(i, 'smooth'), 'true')
+ for smooth in 0, False, '0', 'false', 'no', 'off':
+ i = factory(smooth=smooth)
+ self.assertEqual(c.itemcget(i, 'smooth'), '0')
+ i = factory(smooth=True, splinestep=30)
+ self.assertEqual(c.itemcget(i, 'smooth'), 'true')
+ self.assertEqual(c.itemcget(i, 'splinestep'), '30')
+ i = factory(smooth='raw', splinestep=30)
+ self.assertEqual(c.itemcget(i, 'smooth'), 'raw')
+ self.assertEqual(c.itemcget(i, 'splinestep'), '30')
+ self.assertRaises(TclError, factory, smooth='spam')
+
+ def test_create_rectangle(self):
+ c = self.create()
+ i1 = c.create_rectangle(20, 30, 60, 10)
+ self.assertEqual(c.coords(i1), [20.0, 10.0, 60.0, 30.0])
+ self.assertEqual(c.bbox(i1), (19, 9, 61, 31))
+
+ i2 = c.create_rectangle([21, 31, 61, 11])
+ self.assertEqual(c.coords(i2), [21.0, 11.0, 61.0, 31.0])
+ self.assertEqual(c.bbox(i2), (20, 10, 62, 32))
+
+ i3 = c.create_rectangle((22, 32), (62, 12))
+ self.assertEqual(c.coords(i3), [22.0, 12.0, 62.0, 32.0])
+ self.assertEqual(c.bbox(i3), (21, 11, 63, 33))
+
+ i4 = c.create_rectangle([(23, 33), (63, 13)])
+ self.assertEqual(c.coords(i4), [23.0, 13.0, 63.0, 33.0])
+ self.assertEqual(c.bbox(i4), (22, 12, 64, 34))
+
+ self.assertRaises(TclError, c.create_rectangle, 20, 30, 60)
+ self.assertRaises(TclError, c.create_rectangle, [20, 30, 60])
+ self.assertRaises(TclError, c.create_rectangle, 20, 30, 40, 50, 60, 10)
+ self.assertRaises(TclError, c.create_rectangle, [20, 30, 40, 50, 60, 10])
+ self.assertRaises(TclError, c.create_rectangle, 20, 30)
+ self.assertRaises(TclError, c.create_rectangle, [20, 30])
+ self.assertRaises(IndexError, c.create_rectangle)
+ self.assertRaises(IndexError, c.create_rectangle, [])
+
+ def test_create_line(self):
+ c = self.create()
+ i1 = c.create_line(20, 30, 40, 50, 60, 10)
+ self.assertEqual(c.coords(i1), [20.0, 30.0, 40.0, 50.0, 60.0, 10.0])
+ self.assertEqual(c.bbox(i1), (18, 8, 62, 52))
+ self.assertEqual(c.itemcget(i1, 'arrow'), 'none')
+ self.assertEqual(c.itemcget(i1, 'arrowshape'), '8 10 3')
+ self.assertEqual(c.itemcget(i1, 'capstyle'), 'butt')
+ self.assertEqual(c.itemcget(i1, 'joinstyle'), 'round')
+ self.assertEqual(c.itemcget(i1, 'smooth'), '0')
+ self.assertEqual(c.itemcget(i1, 'splinestep'), '12')
+
+ i2 = c.create_line([21, 31, 41, 51, 61, 11])
+ self.assertEqual(c.coords(i2), [21.0, 31.0, 41.0, 51.0, 61.0, 11.0])
+ self.assertEqual(c.bbox(i2), (19, 9, 63, 53))
+
+ i3 = c.create_line((22, 32), (42, 52), (62, 12))
+ self.assertEqual(c.coords(i3), [22.0, 32.0, 42.0, 52.0, 62.0, 12.0])
+ self.assertEqual(c.bbox(i3), (20, 10, 64, 54))
+
+ i4 = c.create_line([(23, 33), (43, 53), (63, 13)])
+ self.assertEqual(c.coords(i4), [23.0, 33.0, 43.0, 53.0, 63.0, 13.0])
+ self.assertEqual(c.bbox(i4), (21, 11, 65, 55))
+
+ self.assertRaises(TclError, c.create_line, 20, 30, 60)
+ self.assertRaises(TclError, c.create_line, [20, 30, 60])
+ self.assertRaises(TclError, c.create_line, 20, 30)
+ self.assertRaises(TclError, c.create_line, [20, 30])
+ self.assertRaises(IndexError, c.create_line)
+ self.assertRaises(IndexError, c.create_line, [])
+
+ for arrow in 'none', 'first', 'last', 'both':
+ i = c.create_line(20, 30, 60, 10, arrow=arrow)
+ self.assertEqual(c.itemcget(i, 'arrow'), arrow)
+ i = c.create_line(20, 30, 60, 10, arrow='first', arrowshape=[10, 15, 5])
+ self.assertEqual(c.itemcget(i, 'arrowshape'), '10 15 5')
+ self.assertRaises(TclError, c.create_line, 20, 30, 60, 10, arrow='spam')
+
+ for capstyle in 'butt', 'projecting', 'round':
+ i = c.create_line(20, 30, 60, 10, capstyle=capstyle)
+ self.assertEqual(c.itemcget(i, 'capstyle'), capstyle)
+ self.assertRaises(TclError, c.create_line, 20, 30, 60, 10, capstyle='spam')
+
+ self._test_option_joinstyle(c,
+ lambda **kwargs: c.create_line(20, 30, 40, 50, 60, 10, **kwargs))
+ self._test_option_smooth(c,
+ lambda **kwargs: c.create_line(20, 30, 60, 10, **kwargs))
+
+ def test_create_polygon(self):
+ c = self.create()
+ i1 = c.create_polygon(20, 30, 40, 50, 60, 10)
+ self.assertEqual(c.coords(i1), [20.0, 30.0, 40.0, 50.0, 60.0, 10.0])
+ self.assertEqual(c.bbox(i1), (19, 9, 61, 51))
+ self.assertEqual(c.itemcget(i1, 'joinstyle'), 'round')
+ self.assertEqual(c.itemcget(i1, 'smooth'), '0')
+ self.assertEqual(c.itemcget(i1, 'splinestep'), '12')
+
+ i2 = c.create_polygon([21, 31, 41, 51, 61, 11])
+ self.assertEqual(c.coords(i2), [21.0, 31.0, 41.0, 51.0, 61.0, 11.0])
+ self.assertEqual(c.bbox(i2), (20, 10, 62, 52))
+
+ i3 = c.create_polygon((22, 32), (42, 52), (62, 12))
+ self.assertEqual(c.coords(i3), [22.0, 32.0, 42.0, 52.0, 62.0, 12.0])
+ self.assertEqual(c.bbox(i3), (21, 11, 63, 53))
+
+ i4 = c.create_polygon([(23, 33), (43, 53), (63, 13)])
+ self.assertEqual(c.coords(i4), [23.0, 33.0, 43.0, 53.0, 63.0, 13.0])
+ self.assertEqual(c.bbox(i4), (22, 12, 64, 54))
+
+ self.assertRaises(TclError, c.create_polygon, 20, 30, 60)
+ self.assertRaises(TclError, c.create_polygon, [20, 30, 60])
+ self.assertRaises(IndexError, c.create_polygon)
+ self.assertRaises(IndexError, c.create_polygon, [])
+
+ self._test_option_joinstyle(c,
+ lambda **kwargs: c.create_polygon(20, 30, 40, 50, 60, 10, **kwargs))
+ self._test_option_smooth(c,
+ lambda **kwargs: c.create_polygon(20, 30, 40, 50, 60, 10, **kwargs))
+
+ def test_coords(self):
+ c = self.create()
+ i = c.create_line(20, 30, 40, 50, 60, 10, tags='x')
+ self.assertEqual(c.coords(i), [20.0, 30.0, 40.0, 50.0, 60.0, 10.0])
+ self.assertEqual(c.coords('x'), [20.0, 30.0, 40.0, 50.0, 60.0, 10.0])
+ self.assertEqual(c.bbox(i), (18, 8, 62, 52))
+
+ c.coords(i, 50, 60, 70, 80, 90, 40)
+ self.assertEqual(c.coords(i), [50.0, 60.0, 70.0, 80.0, 90.0, 40.0])
+ self.assertEqual(c.bbox(i), (48, 38, 92, 82))
+
+ c.coords(i, [21, 31, 41, 51, 61, 11])
+ self.assertEqual(c.coords(i), [21.0, 31.0, 41.0, 51.0, 61.0, 11.0])
+
+ c.coords(i, 20, 30, 60, 10)
+ self.assertEqual(c.coords(i), [20.0, 30.0, 60.0, 10.0])
+ self.assertEqual(c.bbox(i), (18, 8, 62, 32))
+
+ self.assertRaises(TclError, c.coords, i, 20, 30, 60)
+ self.assertRaises(TclError, c.coords, i, [20, 30, 60])
+ self.assertRaises(TclError, c.coords, i, 20, 30)
+ self.assertRaises(TclError, c.coords, i, [20, 30])
+
+ c.coords(i, '20', '30c', '60i', '10p')
+ coords = c.coords(i)
+ self.assertIsInstance(coords, list)
+ self.assertEqual(len(coords), 4)
+ self.assertEqual(coords[0], 20)
+ for i in range(4):
+ self.assertIsInstance(coords[i], float)
+
@requires_tcl(8, 6)
def test_moveto(self):
widget = self.create()
self.assertEqual(cbtn['offvalue'],
cbtn.tk.globalgetvar(cbtn['variable']))
+ def test_unique_variables(self):
+ frames = []
+ buttons = []
+ for i in range(2):
+ f = ttk.Frame(self.root)
+ f.pack()
+ frames.append(f)
+ for j in 'AB':
+ b = ttk.Checkbutton(f, text=j)
+ b.pack()
+ buttons.append(b)
+ variables = [str(b['variable']) for b in buttons]
+ print(variables)
+ self.assertEqual(len(set(variables)), 4, variables)
+
@add_standard_options(IntegerSizeTests, StandardTtkOptionsTests)
class EntryTest(AbstractWidgetTest, unittest.TestCase):
del cnf[k]
self.widgetName = widgetName
- Widget._setup(self, master, cnf)
+ self._setup(master, cnf)
# If widgetName is None, this is a dummy creation call where the
# corresponding Tk widget has already been created by Tix
try:
with open(self.infile, 'rb') as f:
counts, calledfuncs, callers = pickle.load(f)
- self.update(self.__class__(counts, calledfuncs, callers))
+ self.update(self.__class__(counts, calledfuncs, callers=callers))
except (OSError, EOFError, ValueError) as err:
print(("Skipping counts file %r: %s"
% (self.infile, err)), file=sys.stderr)
frame_summary.colno is not None
and frame_summary.end_colno is not None
):
- colno = _byte_offset_to_character_offset(
- frame_summary._original_line, frame_summary.colno)
- end_colno = _byte_offset_to_character_offset(
- frame_summary._original_line, frame_summary.end_colno)
+ start_offset = _byte_offset_to_character_offset(
+ frame_summary._original_line, frame_summary.colno) + 1
+ end_offset = _byte_offset_to_character_offset(
+ frame_summary._original_line, frame_summary.end_colno) + 1
anchors = None
if frame_summary.lineno == frame_summary.end_lineno:
with suppress(Exception):
anchors = _extract_caret_anchors_from_line_segment(
- frame_summary._original_line[colno - 1:end_colno - 1]
+ frame_summary._original_line[start_offset - 1:end_offset - 1]
)
else:
- end_colno = stripped_characters + len(stripped_line)
+ end_offset = stripped_characters + len(stripped_line)
# show indicators if primary char doesn't span the frame line
- if end_colno - colno < len(stripped_line) or (
+ if end_offset - start_offset < len(stripped_line) or (
anchors and anchors.right_start_offset - anchors.left_end_offset > 0):
row.append(' ')
- row.append(' ' * (colno - stripped_characters))
+ row.append(' ' * (start_offset - stripped_characters))
if anchors:
row.append(anchors.primary_char * (anchors.left_end_offset))
row.append(anchors.secondary_char * (anchors.right_start_offset - anchors.left_end_offset))
- row.append(anchors.primary_char * (end_colno - colno - anchors.right_start_offset))
+ row.append(anchors.primary_char * (end_offset - start_offset - anchors.right_start_offset))
else:
- row.append('^' * (end_colno - colno))
+ row.append('^' * (end_offset - start_offset))
row.append('\n')
def _byte_offset_to_character_offset(str, offset):
as_utf8 = str.encode('utf-8')
- if offset > len(as_utf8):
- offset = len(as_utf8)
-
- return len(as_utf8[:offset + 1].decode("utf-8"))
+ return len(as_utf8[:offset].decode("utf-8", errors="replace"))
_Anchors = collections.namedtuple(
if len(tree.body) != 1:
return None
+ normalize = lambda offset: _byte_offset_to_character_offset(segment, offset)
statement = tree.body[0]
match statement:
case ast.Expr(expr):
match expr:
case ast.BinOp():
- operator_str = segment[expr.left.end_col_offset:expr.right.col_offset]
+ operator_start = normalize(expr.left.end_col_offset)
+ operator_end = normalize(expr.right.col_offset)
+ operator_str = segment[operator_start:operator_end]
operator_offset = len(operator_str) - len(operator_str.lstrip())
left_anchor = expr.left.end_col_offset + operator_offset
and not operator_str[operator_offset + 1].isspace()
):
right_anchor += 1
- return _Anchors(left_anchor, right_anchor)
+ return _Anchors(normalize(left_anchor), normalize(right_anchor))
case ast.Subscript():
- return _Anchors(expr.value.end_col_offset, expr.slice.end_col_offset + 1)
+ subscript_start = normalize(expr.value.end_col_offset)
+ subscript_end = normalize(expr.slice.end_col_offset + 1)
+ return _Anchors(subscript_start, subscript_end)
return None
item = self.cv.create_text(x-1, -y, text = txt, anchor = anchor[align],
fill = pencolor, font = font)
x0, y0, x1, y1 = self.cv.bbox(item)
- self.cv.update()
return item, x1-1
## def _dot(self, pos, size, color):
"""
item, end = self.screen._write(self._position, txt, align, font,
self._pencolor)
+ self._update()
self.items.append(item)
if self.undobuffer:
self.undobuffer.push(("wri", item))
writer.write(datum(t),
align="center", font=("Courier", 14, "bold"))
writer.forward(85)
- tracer(True)
second_hand.setheading(6*sekunde) # or here
minute_hand.setheading(6*minute)
hour_hand.setheading(30*stunde)
newargs.append(arg)
return newargs
-def _prepare_paramspec_params(cls, params):
- """Prepares the parameters for a Generic containing ParamSpec
- variables (internal helper).
- """
- # Special case where Z[[int, str, bool]] == Z[int, str, bool] in PEP 612.
- if (len(cls.__parameters__) == 1
- and params and not _is_param_expr(params[0])):
- assert isinstance(cls.__parameters__[0], ParamSpec)
- return (params,)
- else:
- _check_generic(cls, params, len(cls.__parameters__))
- _params = []
- # Convert lists to tuples to help other libraries cache the results.
- for p, tvar in zip(params, cls.__parameters__):
- if isinstance(tvar, ParamSpec) and isinstance(p, list):
- p = tuple(p)
- _params.append(p)
- return tuple(_params)
-
def _deduplicate(params):
# Weed out strict duplicates, preserving the first of each occurrence.
all_params = set(params)
return super().__instancecheck__(obj)
def __repr__(self):
- return "typing.Any"
+ if self is Any:
+ return "typing.Any"
+ return super().__repr__() # respect to subclasses
class Any(metaclass=_AnyMeta):
return arg
def __typing_prepare_subst__(self, alias, args):
- return _prepare_paramspec_params(alias, args)
+ params = alias.__parameters__
+ i = params.index(self)
+ if i >= len(args):
+ raise TypeError(f"Too few arguments for {alias}")
+ # Special case where Z[[int, str, bool]] == Z[int, str, bool] in PEP 612.
+ if len(params) == 1 and not _is_param_expr(args[0]):
+ assert i == 0
+ args = (args,)
+ # Convert lists to tuples to help other libraries cache the results.
+ elif isinstance(args[i], list):
+ args = (*args[:i], tuple(args[i]), *args[i+1:])
+ return args
def _is_dunder(attr):
return attr.startswith('__') and attr.endswith('__')
new_args = []
for old_arg in self.__args__:
+ if isinstance(old_arg, type):
+ new_args.append(old_arg)
+ continue
+
substfunc = getattr(old_arg, '__typing_subst__', None)
if substfunc:
new_arg = substfunc(new_arg_by_param[old_arg])
if not isinstance(params, tuple):
params = (params,)
- if not params:
- # We're only ok with `params` being empty if the class's only type
- # parameter is a `TypeVarTuple` (which can contain zero types).
- class_params = getattr(cls, "__parameters__", None)
- only_class_parameter_is_typevartuple = (
- class_params is not None
- and len(class_params) == 1
- and isinstance(class_params[0], TypeVarTuple)
- )
- if not only_class_parameter_is_typevartuple:
- raise TypeError(
- f"Parameter list to {cls.__qualname__}[...] cannot be empty"
- )
-
params = tuple(_type_convert(p) for p in params)
if cls in (Generic, Protocol):
# Generic and Protocol can only be subscripted with unique type variables.
+ if not params:
+ raise TypeError(
+ f"Parameter list to {cls.__qualname__}[...] cannot be empty"
+ )
if not all(_is_typevar_like(p) for p in params):
raise TypeError(
f"Parameters to {cls.__name__}[...] must all be type variables "
f"Parameters to {cls.__name__}[...] must all be unique")
else:
# Subscripting a regular Generic subclass.
- if any(isinstance(t, ParamSpec) for t in cls.__parameters__):
- params = _prepare_paramspec_params(cls, params)
- elif not any(isinstance(p, TypeVarTuple) for p in cls.__parameters__):
- # We only run this if there are no TypeVarTuples, because we
- # don't check variadic generic arity at runtime (to reduce
- # complexity of typing.py).
- _check_generic(cls, params, len(cls.__parameters__))
+ for param in cls.__parameters__:
+ prepare = getattr(param, '__typing_prepare_subst__', None)
+ if prepare is not None:
+ params = prepare(cls, params)
+ _check_generic(cls, params, len(cls.__parameters__))
+
+ new_args = []
+ for param, new_arg in zip(cls.__parameters__, params):
+ if isinstance(param, TypeVarTuple):
+ new_args.extend(new_arg)
+ else:
+ new_args.append(new_arg)
+ params = tuple(new_args)
+
return _GenericAlias(cls, params,
_paramspec_tvars=True)
def _callTestMethod(self, method):
if self._callMaybeAsync(method) is not None:
- warnings.warn(f'It is deprecated to return a value!=None from a '
+ warnings.warn(f'It is deprecated to return a value that is not None from a '
f'test case ({method})', DeprecationWarning, stacklevel=4)
def _callTearDown(self):
# of difflib. See #11763.
_diffThreshold = 2**16
- # Attribute used by TestSuite for classSetUp
-
- _classSetupFailed = False
-
- _class_cleanups = []
+ def __init_subclass__(cls, *args, **kwargs):
+ # Attribute used by TestSuite for classSetUp
+ cls._classSetupFailed = False
+ cls._class_cleanups = []
+ super().__init_subclass__(*args, **kwargs)
def __init__(self, methodName='runTest'):
"""Create an instance of the class that will use the named test
def _callTestMethod(self, method):
if method() is not None:
- warnings.warn(f'It is deprecated to return a value!=None from a '
+ warnings.warn(f'It is deprecated to return a value that is not None from a '
f'test case ({method})', DeprecationWarning, stacklevel=3)
def _callTearDown(self):
from types import CodeType, ModuleType, MethodType
from unittest.util import safe_repr
from functools import wraps, partial
+from threading import RLock
class InvalidSpecError(Exception):
class NonCallableMock(Base):
"""A non-callable version of `Mock`"""
+ # Store a mutex as a class attribute in order to protect concurrent access
+ # to mock attributes. Using a class attribute allows all NonCallableMock
+ # instances to share the mutex for simplicity.
+ #
+ # See https://github.com/python/cpython/issues/98624 for why this is
+ # necessary.
+ _lock = RLock()
+
def __new__(cls, /, *args, **kw):
# every instance has its own class
# so we can create magic methods on the
f"{name!r} is not a valid assertion. Use a spec "
f"for the mock if {name!r} is meant to be an attribute.")
- result = self._mock_children.get(name)
- if result is _deleted:
- raise AttributeError(name)
- elif result is None:
- wraps = None
- if self._mock_wraps is not None:
- # XXXX should we get the attribute without triggering code
- # execution?
- wraps = getattr(self._mock_wraps, name)
-
- result = self._get_child_mock(
- parent=self, name=name, wraps=wraps, _new_name=name,
- _new_parent=self
- )
- self._mock_children[name] = result
-
- elif isinstance(result, _SpecState):
- try:
- result = create_autospec(
- result.spec, result.spec_set, result.instance,
- result.parent, result.name
+ with NonCallableMock._lock:
+ result = self._mock_children.get(name)
+ if result is _deleted:
+ raise AttributeError(name)
+ elif result is None:
+ wraps = None
+ if self._mock_wraps is not None:
+ # XXXX should we get the attribute without triggering code
+ # execution?
+ wraps = getattr(self._mock_wraps, name)
+
+ result = self._get_child_mock(
+ parent=self, name=name, wraps=wraps, _new_name=name,
+ _new_parent=self
)
- except InvalidSpecError:
- target_name = self.__dict__['_mock_name'] or self
- raise InvalidSpecError(
- f'Cannot autospec attr {name!r} from target '
- f'{target_name!r} as it has already been mocked out. '
- f'[target={self!r}, attr={result.spec!r}]')
- self._mock_children[name] = result
+ self._mock_children[name] = result
+
+ elif isinstance(result, _SpecState):
+ try:
+ result = create_autospec(
+ result.spec, result.spec_set, result.instance,
+ result.parent, result.name
+ )
+ except InvalidSpecError:
+ target_name = self.__dict__['_mock_name'] or self
+ raise InvalidSpecError(
+ f'Cannot autospec attr {name!r} from target '
+ f'{target_name!r} as it has already been mocked out. '
+ f'[target={self!r}, attr={result.spec!r}]')
+ self._mock_children[name] = result
return result
def __call__(self, f):
if isinstance(f, type):
return self.decorate_class(f)
+ if inspect.iscoroutinefunction(f):
+ return self.decorate_async_callable(f)
+ return self.decorate_callable(f)
+
+
+ def decorate_callable(self, f):
@wraps(f)
def _inner(*args, **kw):
self._patch_dict()
return _inner
+ def decorate_async_callable(self, f):
+ @wraps(f)
+ async def _inner(*args, **kw):
+ self._patch_dict()
+ try:
+ return await f(*args, **kw)
+ finally:
+ self._unpatch_dict()
+
+ return _inner
+
+
def decorate_class(self, klass):
for attr in dir(klass):
attr_value = getattr(klass, attr)
ret = None
first = True
excs = [(exctype, value, tb)]
+ seen = {id(value)} # Detect loops in chained exceptions.
while excs:
(exctype, value, tb) = excs.pop()
# Skip test runner traceback levels
if value is not None:
for c in (value.__cause__, value.__context__):
- if c is not None:
+ if c is not None and id(c) not in seen:
excs.append((type(c), c, c.__traceback__))
+ seen.add(id(c))
return ret
def _is_relevant_tb_level(self, tb):
self.addCleanup(support.gc_collect)
def test_full_cycle(self):
+ expected = ['setUp',
+ 'asyncSetUp',
+ 'test',
+ 'asyncTearDown',
+ 'tearDown',
+ 'cleanup6',
+ 'cleanup5',
+ 'cleanup4',
+ 'cleanup3',
+ 'cleanup2',
+ 'cleanup1']
class Test(unittest.IsolatedAsyncioTestCase):
def setUp(self):
self.assertEqual(events, [])
events.append('setUp')
VAR.set(VAR.get() + ('setUp',))
+ self.addCleanup(self.on_cleanup1)
+ self.addAsyncCleanup(self.on_cleanup2)
async def asyncSetUp(self):
- self.assertEqual(events, ['setUp'])
+ self.assertEqual(events, expected[:1])
events.append('asyncSetUp')
VAR.set(VAR.get() + ('asyncSetUp',))
- self.addAsyncCleanup(self.on_cleanup1)
+ self.addCleanup(self.on_cleanup3)
+ self.addAsyncCleanup(self.on_cleanup4)
async def test_func(self):
- self.assertEqual(events, ['setUp',
- 'asyncSetUp'])
+ self.assertEqual(events, expected[:2])
events.append('test')
VAR.set(VAR.get() + ('test',))
- self.addAsyncCleanup(self.on_cleanup2)
+ self.addCleanup(self.on_cleanup5)
+ self.addAsyncCleanup(self.on_cleanup6)
async def asyncTearDown(self):
- self.assertEqual(events, ['setUp',
- 'asyncSetUp',
- 'test'])
+ self.assertEqual(events, expected[:3])
VAR.set(VAR.get() + ('asyncTearDown',))
events.append('asyncTearDown')
def tearDown(self):
- self.assertEqual(events, ['setUp',
- 'asyncSetUp',
- 'test',
- 'asyncTearDown'])
+ self.assertEqual(events, expected[:4])
events.append('tearDown')
VAR.set(VAR.get() + ('tearDown',))
- async def on_cleanup1(self):
- self.assertEqual(events, ['setUp',
- 'asyncSetUp',
- 'test',
- 'asyncTearDown',
- 'tearDown',
- 'cleanup2'])
+ def on_cleanup1(self):
+ self.assertEqual(events, expected[:10])
events.append('cleanup1')
VAR.set(VAR.get() + ('cleanup1',))
nonlocal cvar
cvar = VAR.get()
async def on_cleanup2(self):
- self.assertEqual(events, ['setUp',
- 'asyncSetUp',
- 'test',
- 'asyncTearDown',
- 'tearDown'])
+ self.assertEqual(events, expected[:9])
events.append('cleanup2')
VAR.set(VAR.get() + ('cleanup2',))
+ def on_cleanup3(self):
+ self.assertEqual(events, expected[:8])
+ events.append('cleanup3')
+ VAR.set(VAR.get() + ('cleanup3',))
+
+ async def on_cleanup4(self):
+ self.assertEqual(events, expected[:7])
+ events.append('cleanup4')
+ VAR.set(VAR.get() + ('cleanup4',))
+
+ def on_cleanup5(self):
+ self.assertEqual(events, expected[:6])
+ events.append('cleanup5')
+ VAR.set(VAR.get() + ('cleanup5',))
+
+ async def on_cleanup6(self):
+ self.assertEqual(events, expected[:5])
+ events.append('cleanup6')
+ VAR.set(VAR.get() + ('cleanup6',))
+
events = []
cvar = ()
test = Test("test_func")
result = test.run()
self.assertEqual(result.errors, [])
self.assertEqual(result.failures, [])
- expected = ['setUp', 'asyncSetUp', 'test',
- 'asyncTearDown', 'tearDown', 'cleanup2', 'cleanup1']
self.assertEqual(events, expected)
self.assertEqual(cvar, tuple(expected))
self.assertEqual(events, ['asyncSetUp', 'test', 'asyncTearDown', 'cleanup2', 'cleanup1'])
def test_deprecation_of_return_val_from_test(self):
- # Issue 41322 - deprecate return of value!=None from a test
+ # Issue 41322 - deprecate return of value that is not None from a test
+ class Nothing:
+ def __eq__(self, o):
+ return o is None
class Test(unittest.IsolatedAsyncioTestCase):
async def test1(self):
return 1
async def test2(self):
yield 1
+ async def test3(self):
+ return Nothing()
with self.assertWarns(DeprecationWarning) as w:
Test('test1').run()
- self.assertIn('It is deprecated to return a value!=None', str(w.warning))
+ self.assertIn('It is deprecated to return a value that is not None', str(w.warning))
self.assertIn('test1', str(w.warning))
self.assertEqual(w.filename, __file__)
with self.assertWarns(DeprecationWarning) as w:
Test('test2').run()
- self.assertIn('It is deprecated to return a value!=None', str(w.warning))
+ self.assertIn('It is deprecated to return a value that is not None', str(w.warning))
self.assertIn('test2', str(w.warning))
self.assertEqual(w.filename, __file__)
+ with self.assertWarns(DeprecationWarning) as w:
+ Test('test3').run()
+ self.assertIn('It is deprecated to return a value that is not None', str(w.warning))
+ self.assertIn('test3', str(w.warning))
+ self.assertEqual(w.filename, __file__)
+
def test_cleanups_interleave_order(self):
events = []
Foo('test').run()
def test_deprecation_of_return_val_from_test(self):
- # Issue 41322 - deprecate return of value!=None from a test
+ # Issue 41322 - deprecate return of value that is not None from a test
+ class Nothing:
+ def __eq__(self, o):
+ return o is None
class Foo(unittest.TestCase):
def test1(self):
return 1
def test2(self):
yield 1
+ def test3(self):
+ return Nothing()
with self.assertWarns(DeprecationWarning) as w:
Foo('test1').run()
- self.assertIn('It is deprecated to return a value!=None', str(w.warning))
+ self.assertIn('It is deprecated to return a value that is not None', str(w.warning))
self.assertIn('test1', str(w.warning))
self.assertEqual(w.filename, __file__)
with self.assertWarns(DeprecationWarning) as w:
Foo('test2').run()
- self.assertIn('It is deprecated to return a value!=None', str(w.warning))
+ self.assertIn('It is deprecated to return a value that is not None', str(w.warning))
self.assertIn('test2', str(w.warning))
self.assertEqual(w.filename, __file__)
+ with self.assertWarns(DeprecationWarning) as w:
+ Foo('test3').run()
+ self.assertIn('It is deprecated to return a value that is not None', str(w.warning))
+ self.assertIn('test3', str(w.warning))
+ self.assertEqual(w.filename, __file__)
+
def _check_call_order__subtests(self, result, events, expected_events):
class Foo(Test.LoggingTestCase):
def test(self):
self.assertEqual(len(dropped), 1)
self.assertIn("raise self.failureException(msg)", dropped[0])
+ def test_addFailure_filter_traceback_frames_chained_exception_self_loop(self):
+ class Foo(unittest.TestCase):
+ def test_1(self):
+ pass
+
+ def get_exc_info():
+ try:
+ loop = Exception("Loop")
+ loop.__cause__ = loop
+ loop.__context__ = loop
+ raise loop
+ except:
+ return sys.exc_info()
+
+ exc_info_tuple = get_exc_info()
+
+ test = Foo('test_1')
+ result = unittest.TestResult()
+ result.startTest(test)
+ result.addFailure(test, exc_info_tuple)
+ result.stopTest(test)
+
+ formatted_exc = result.failures[0][1]
+ self.assertEqual(formatted_exc.count("Exception: Loop\n"), 1)
+
+ def test_addFailure_filter_traceback_frames_chained_exception_cycle(self):
+ class Foo(unittest.TestCase):
+ def test_1(self):
+ pass
+
+ def get_exc_info():
+ try:
+ # Create two directionally opposed cycles
+ # __cause__ in one direction, __context__ in the other
+ A, B, C = Exception("A"), Exception("B"), Exception("C")
+ edges = [(C, B), (B, A), (A, C)]
+ for ex1, ex2 in edges:
+ ex1.__cause__ = ex2
+ ex2.__context__ = ex1
+ raise C
+ except:
+ return sys.exc_info()
+
+ exc_info_tuple = get_exc_info()
+
+ test = Foo('test_1')
+ result = unittest.TestResult()
+ result.startTest(test)
+ result.addFailure(test, exc_info_tuple)
+ result.stopTest(test)
+
+ formatted_exc = result.failures[0][1]
+ self.assertEqual(formatted_exc.count("Exception: A\n"), 1)
+ self.assertEqual(formatted_exc.count("Exception: B\n"), 1)
+ self.assertEqual(formatted_exc.count("Exception: C\n"), 1)
+
# "addError(test, err)"
# ...
# "Called when the test case test raises an unexpected exception err
class TestableTest(unittest.TestCase):
def setUp(self):
ordering.append('setUp')
+ test.addCleanup(cleanup2)
if blowUp:
raise Exception('foo')
def testNothing(self):
ordering.append('test')
+ test.addCleanup(cleanup3)
def tearDown(self):
ordering.append('tearDown')
ordering.append('cleanup1')
def cleanup2():
ordering.append('cleanup2')
+ def cleanup3():
+ ordering.append('cleanup3')
test.addCleanup(cleanup1)
- test.addCleanup(cleanup2)
def success(some_test):
self.assertEqual(some_test, test)
result.addSuccess = success
test.run(result)
- self.assertEqual(ordering, ['setUp', 'test', 'tearDown',
+ self.assertEqual(ordering, ['setUp', 'test', 'tearDown', 'cleanup3',
'cleanup2', 'cleanup1', 'success'])
blowUp = True
test = TestableTest('testNothing')
test.addCleanup(cleanup1)
test.run(result)
- self.assertEqual(ordering, ['setUp', 'cleanup1'])
+ self.assertEqual(ordering, ['setUp', 'cleanup2', 'cleanup1'])
def testTestCaseDebugExecutesCleanups(self):
ordering = []
def testNothing(self):
ordering.append('test')
+ self.addCleanup(cleanup3)
def tearDown(self):
ordering.append('tearDown')
+ test.addCleanup(cleanup4)
test = TestableTest('testNothing')
test.addCleanup(cleanup2)
def cleanup2():
ordering.append('cleanup2')
+ def cleanup3():
+ ordering.append('cleanup3')
+ def cleanup4():
+ ordering.append('cleanup4')
test.debug()
- self.assertEqual(ordering, ['setUp', 'test', 'tearDown', 'cleanup1', 'cleanup2'])
+ self.assertEqual(ordering, ['setUp', 'test', 'tearDown', 'cleanup4',
+ 'cleanup3', 'cleanup1', 'cleanup2'])
def test_enterContext(self):
ordering.append('test')
@classmethod
def tearDownClass(cls):
+ ordering.append('tearDownClass')
raise Exception('TearDownClassExc')
suite = unittest.defaultTestLoader.loadTestsFromTestCase(TestableTest)
with self.assertRaises(Exception) as cm:
suite.debug()
self.assertEqual(str(cm.exception), 'TearDownClassExc')
- self.assertEqual(ordering, ['setUpClass', 'test'])
+ self.assertEqual(ordering, ['setUpClass', 'test', 'tearDownClass'])
self.assertTrue(TestableTest._class_cleanups)
TestableTest._class_cleanups.clear()
with self.assertRaises(Exception) as cm:
suite.debug()
self.assertEqual(str(cm.exception), 'TearDownClassExc')
- self.assertEqual(ordering, ['setUpClass', 'test'])
+ self.assertEqual(ordering, ['setUpClass', 'test', 'tearDownClass'])
self.assertTrue(TestableTest._class_cleanups)
TestableTest._class_cleanups.clear()
self.assertEqual(TestableTest._class_cleanups, [])
+ def test_run_nested_test(self):
+ ordering = []
+
+ class InnerTest(unittest.TestCase):
+ @classmethod
+ def setUpClass(cls):
+ ordering.append('inner setup')
+ cls.addClassCleanup(ordering.append, 'inner cleanup')
+ def test(self):
+ ordering.append('inner test')
+
+ class OuterTest(unittest.TestCase):
+ @classmethod
+ def setUpClass(cls):
+ ordering.append('outer setup')
+ cls.addClassCleanup(ordering.append, 'outer cleanup')
+ def test(self):
+ ordering.append('start outer test')
+ runTests(InnerTest)
+ ordering.append('end outer test')
+
+ runTests(OuterTest)
+ self.assertEqual(ordering, [
+ 'outer setup', 'start outer test',
+ 'inner setup', 'inner test', 'inner cleanup',
+ 'end outer test', 'outer cleanup'])
+
class TestModuleCleanUp(unittest.TestCase):
def test_add_and_do_ModuleCleanup(self):
unittest.addModuleCleanup(cleanup, ordering)
@staticmethod
def tearDownModule():
+ ordering.append('tearDownModule')
raise Exception('CleanUpExc')
class TestableTest(unittest.TestCase):
self.assertEqual(result.errors[0][1].splitlines()[-1],
'Exception: CleanUpExc')
self.assertEqual(ordering, ['setUpModule', 'setUpClass', 'test',
- 'tearDownClass', 'cleanup_good'])
+ 'tearDownClass', 'tearDownModule',
+ 'cleanup_good'])
self.assertEqual(unittest.case._module_cleanups, [])
def test_debug_module_executes_cleanUp(self):
unittest.addModuleCleanup(cleanup, ordering, blowUp=blowUp)
@staticmethod
def tearDownModule():
+ ordering.append('tearDownModule')
raise Exception('TearDownModuleExc')
class TestableTest(unittest.TestCase):
suite.debug()
self.assertEqual(str(cm.exception), 'TearDownModuleExc')
self.assertEqual(ordering, ['setUpModule', 'setUpClass', 'test',
- 'tearDownClass'])
+ 'tearDownClass', 'tearDownModule'])
self.assertTrue(unittest.case._module_cleanups)
unittest.case._module_cleanups.clear()
suite.debug()
self.assertEqual(str(cm.exception), 'TearDownModuleExc')
self.assertEqual(ordering, ['setUpModule', 'setUpClass', 'test',
- 'tearDownClass'])
+ 'tearDownClass', 'tearDownModule'])
self.assertTrue(unittest.case._module_cleanups)
unittest.case._module_cleanups.clear()
run(test_async())
+ def test_patch_dict_async_def(self):
+ foo = {'a': 'a'}
+ @patch.dict(foo, {'a': 'b'})
+ async def test_async():
+ self.assertEqual(foo['a'], 'b')
+
+ self.assertTrue(iscoroutinefunction(test_async))
+ run(test_async())
+
+ def test_patch_dict_async_def_context(self):
+ foo = {'a': 'a'}
+ async def test_async():
+ with patch.dict(foo, {'a': 'b'}):
+ self.assertEqual(foo['a'], 'b')
+
+ run(test_async())
+
class AsyncMockTest(unittest.TestCase):
def test_iscoroutinefunction_default(self):
def port(self):
port = self._hostinfo[1]
if port is not None:
- try:
- port = int(port, 10)
- except ValueError:
- message = f'Port could not be cast to integer value as {port!r}'
- raise ValueError(message) from None
- if not ( 0 <= port <= 65535):
+ if port.isdigit() and port.isascii():
+ port = int(port)
+ else:
+ raise ValueError(f"Port could not be cast to integer value as {port!r}")
+ if not (0 <= port <= 65535):
raise ValueError("Port out of range 0-65535")
return port
allow_fragments = bool(allow_fragments)
netloc = query = fragment = ''
i = url.find(':')
- if i > 0:
+ if i > 0 and url[0].isascii() and url[0].isalpha():
for c in url[:i]:
if c not in scheme_chars:
break
def _splitnport(host, defport=-1):
"""Split host and port, returning numeric port.
Return given default port if no ':' found; defaults to -1.
- Return numerical port if a valid number are found after ':'.
+ Return numerical port if a valid number is found after ':'.
Return None if ':' but not a valid number."""
host, delim, port = host.rpartition(':')
if not delim:
host = port
elif port:
- try:
+ if port.isdigit() and port.isascii():
nport = int(port)
- except ValueError:
+ else:
nport = None
return host, nport
return host, defport
headers = email.message_from_string(headers)
return addinfourl(fp, headers, req.full_url)
except ftplib.all_errors as exp:
- raise URLError(f'ftp error: {exp}') from exp
+ raise URLError(exp) from exp
def connect_ftp(self, user, passwd, host, port, dirs, timeout):
return ftpwrapper(user, passwd, host, port, dirs, timeout,
# for are actually localized, but in theory some system could do so.)
env = dict(os.environ)
env['LC_ALL'] = 'C'
- proc = subprocess.Popen((executable,) + args,
+ # Empty strings will be quoted by popen so we should just ommit it
+ if args != ('',):
+ command = (executable, *args)
+ else:
+ command = (executable,)
+ proc = subprocess.Popen(command,
stdout=subprocess.PIPE,
stderr=subprocess.DEVNULL,
env=env)
mac = _find_mac_near_keyword('ifconfig', args, keywords, lambda i: i+1)
if mac:
return mac
- return None
+ return None
def _ip_getnode():
"""Get the hardware address on Unix by running ip."""
context.prompt = '(%s) ' % prompt
create_if_needed(env_dir)
executable = sys._base_executable
+ if not executable: # see gh-96861
+ raise ValueError('Unable to determine path to the running '
+ 'Python interpreter. Provide an explicit path or '
+ 'check that your PATH environment variable is '
+ 'correctly set.')
dirname, exename = os.path.split(os.path.abspath(executable))
context.executable = executable
context.python_dir = dirname
basename + ext)
# Builds or venv's from builds need to remap source file
# locations, as we do not put them into Lib/venv/scripts
- if sysconfig.is_python_build(True) or not os.path.isfile(srcfn):
+ if sysconfig.is_python_build() or not os.path.isfile(srcfn):
if basename.endswith('_d'):
ext = '_d' + ext
basename = basename[:-2]
f for f in os.listdir(dirname) if
os.path.normcase(os.path.splitext(f)[1]) in ('.exe', '.dll')
]
- if sysconfig.is_python_build(True):
+ if sysconfig.is_python_build():
suffixes = [
f for f in suffixes if
os.path.normcase(f).startswith(('python', 'vcruntime'))
if os.path.lexists(src):
copier(src, os.path.join(binpath, suffix))
- if sysconfig.is_python_build(True):
+ if sysconfig.is_python_build():
# copy init.tcl
for root, dirs, files in os.walk(context.python_dir):
if 'init.tcl' in files:
shutil.copyfile(src, dst)
break
+ def _call_new_python(self, context, *py_args, **kwargs):
+ """Executes the newly created Python using safe-ish options"""
+ # gh-98251: We do not want to just use '-I' because that masks
+ # legitimate user preferences (such as not writing bytecode). All we
+ # really need is to ensure that the path variables do not overrule
+ # normal venv handling.
+ args = [context.env_exec_cmd, *py_args]
+ kwargs['env'] = env = os.environ.copy()
+ env['VIRTUAL_ENV'] = context.env_dir
+ env.pop('PYTHONHOME', None)
+ env.pop('PYTHONPATH', None)
+ kwargs['cwd'] = context.env_dir
+ kwargs['executable'] = context.env_exec_cmd
+ subprocess.check_output(args, **kwargs)
+
def _setup_pip(self, context):
"""Installs or upgrades pip in a virtual environment"""
- # We run ensurepip in isolated mode to avoid side effects from
- # environment vars, the current directory and anything else
- # intended for the global Python environment
- cmd = [context.env_exec_cmd, '-Im', 'ensurepip', '--upgrade',
- '--default-pip']
- subprocess.check_output(cmd, stderr=subprocess.STDOUT)
+ self._call_new_python(context, '-m', 'ensurepip', '--upgrade',
+ '--default-pip', stderr=subprocess.STDOUT)
def setup_scripts(self, context):
"""
logger.debug(
f'Upgrading {CORE_VENV_DEPS} packages in {context.bin_path}'
)
- cmd = [context.env_exec_cmd, '-m', 'pip', 'install', '--upgrade']
- cmd.extend(CORE_VENV_DEPS)
- subprocess.check_call(cmd)
+ self._call_new_python(context, '-m', 'pip', 'install', '--upgrade',
+ *CORE_VENV_DEPS)
def create(env_dir, system_site_packages=False, clear=False,
-<#\r
-.Synopsis\r
-Activate a Python virtual environment for the current PowerShell session.\r
-\r
-.Description\r
-Pushes the python executable for a virtual environment to the front of the\r
-$Env:PATH environment variable and sets the prompt to signify that you are\r
-in a Python virtual environment. Makes use of the command line switches as\r
-well as the `pyvenv.cfg` file values present in the virtual environment.\r
-\r
-.Parameter VenvDir\r
-Path to the directory that contains the virtual environment to activate. The\r
-default value for this is the parent of the directory that the Activate.ps1\r
-script is located within.\r
-\r
-.Parameter Prompt\r
-The prompt prefix to display when this virtual environment is activated. By\r
-default, this prompt is the name of the virtual environment folder (VenvDir)\r
-surrounded by parentheses and followed by a single space (ie. '(.venv) ').\r
-\r
-.Example\r
-Activate.ps1\r
-Activates the Python virtual environment that contains the Activate.ps1 script.\r
-\r
-.Example\r
-Activate.ps1 -Verbose\r
-Activates the Python virtual environment that contains the Activate.ps1 script,\r
-and shows extra information about the activation as it executes.\r
-\r
-.Example\r
-Activate.ps1 -VenvDir C:\Users\MyUser\Common\.venv\r
-Activates the Python virtual environment located in the specified location.\r
-\r
-.Example\r
-Activate.ps1 -Prompt "MyPython"\r
-Activates the Python virtual environment that contains the Activate.ps1 script,\r
-and prefixes the current prompt with the specified string (surrounded in\r
-parentheses) while the virtual environment is active.\r
-\r
-.Notes\r
-On Windows, it may be required to enable this Activate.ps1 script by setting the\r
-execution policy for the user. You can do this by issuing the following PowerShell\r
-command:\r
-\r
-PS C:\> Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser\r
-\r
-For more information on Execution Policies: \r
-https://go.microsoft.com/fwlink/?LinkID=135170\r
-\r
-#>\r
-Param(\r
- [Parameter(Mandatory = $false)]\r
- [String]\r
- $VenvDir,\r
- [Parameter(Mandatory = $false)]\r
- [String]\r
- $Prompt\r
-)\r
-\r
-<# Function declarations --------------------------------------------------- #>\r
-\r
-<#\r
-.Synopsis\r
-Remove all shell session elements added by the Activate script, including the\r
-addition of the virtual environment's Python executable from the beginning of\r
-the PATH variable.\r
-\r
-.Parameter NonDestructive\r
-If present, do not remove this function from the global namespace for the\r
-session.\r
-\r
-#>\r
-function global:deactivate ([switch]$NonDestructive) {\r
- # Revert to original values\r
-\r
- # The prior prompt:\r
- if (Test-Path -Path Function:_OLD_VIRTUAL_PROMPT) {\r
- Copy-Item -Path Function:_OLD_VIRTUAL_PROMPT -Destination Function:prompt\r
- Remove-Item -Path Function:_OLD_VIRTUAL_PROMPT\r
- }\r
-\r
- # The prior PYTHONHOME:\r
- if (Test-Path -Path Env:_OLD_VIRTUAL_PYTHONHOME) {\r
- Copy-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME -Destination Env:PYTHONHOME\r
- Remove-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME\r
- }\r
-\r
- # The prior PATH:\r
- if (Test-Path -Path Env:_OLD_VIRTUAL_PATH) {\r
- Copy-Item -Path Env:_OLD_VIRTUAL_PATH -Destination Env:PATH\r
- Remove-Item -Path Env:_OLD_VIRTUAL_PATH\r
- }\r
-\r
- # Just remove the VIRTUAL_ENV altogether:\r
- if (Test-Path -Path Env:VIRTUAL_ENV) {\r
- Remove-Item -Path env:VIRTUAL_ENV\r
- }\r
-\r
- # Just remove VIRTUAL_ENV_PROMPT altogether.\r
- if (Test-Path -Path Env:VIRTUAL_ENV_PROMPT) {\r
- Remove-Item -Path env:VIRTUAL_ENV_PROMPT\r
- }\r
-\r
- # Just remove the _PYTHON_VENV_PROMPT_PREFIX altogether:\r
- if (Get-Variable -Name "_PYTHON_VENV_PROMPT_PREFIX" -ErrorAction SilentlyContinue) {\r
- Remove-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Scope Global -Force\r
- }\r
-\r
- # Leave deactivate function in the global namespace if requested:\r
- if (-not $NonDestructive) {\r
- Remove-Item -Path function:deactivate\r
- }\r
-}\r
-\r
-<#\r
-.Description\r
-Get-PyVenvConfig parses the values from the pyvenv.cfg file located in the\r
-given folder, and returns them in a map.\r
-\r
-For each line in the pyvenv.cfg file, if that line can be parsed into exactly\r
-two strings separated by `=` (with any amount of whitespace surrounding the =)\r
-then it is considered a `key = value` line. The left hand string is the key,\r
-the right hand is the value.\r
-\r
-If the value starts with a `'` or a `"` then the first and last character is\r
-stripped from the value before being captured.\r
-\r
-.Parameter ConfigDir\r
-Path to the directory that contains the `pyvenv.cfg` file.\r
-#>\r
-function Get-PyVenvConfig(\r
- [String]\r
- $ConfigDir\r
-) {\r
- Write-Verbose "Given ConfigDir=$ConfigDir, obtain values in pyvenv.cfg"\r
-\r
- # Ensure the file exists, and issue a warning if it doesn't (but still allow the function to continue).\r
- $pyvenvConfigPath = Join-Path -Resolve -Path $ConfigDir -ChildPath 'pyvenv.cfg' -ErrorAction Continue\r
-\r
- # An empty map will be returned if no config file is found.\r
- $pyvenvConfig = @{ }\r
-\r
- if ($pyvenvConfigPath) {\r
-\r
- Write-Verbose "File exists, parse `key = value` lines"\r
- $pyvenvConfigContent = Get-Content -Path $pyvenvConfigPath\r
-\r
- $pyvenvConfigContent | ForEach-Object {\r
- $keyval = $PSItem -split "\s*=\s*", 2\r
- if ($keyval[0] -and $keyval[1]) {\r
- $val = $keyval[1]\r
-\r
- # Remove extraneous quotations around a string value.\r
- if ("'""".Contains($val.Substring(0, 1))) {\r
- $val = $val.Substring(1, $val.Length - 2)\r
- }\r
-\r
- $pyvenvConfig[$keyval[0]] = $val\r
- Write-Verbose "Adding Key: '$($keyval[0])'='$val'"\r
- }\r
- }\r
- }\r
- return $pyvenvConfig\r
-}\r
-\r
-\r
-<# Begin Activate script --------------------------------------------------- #>\r
-\r
-# Determine the containing directory of this script\r
-$VenvExecPath = Split-Path -Parent $MyInvocation.MyCommand.Definition\r
-$VenvExecDir = Get-Item -Path $VenvExecPath\r
-\r
-Write-Verbose "Activation script is located in path: '$VenvExecPath'"\r
-Write-Verbose "VenvExecDir Fullname: '$($VenvExecDir.FullName)"\r
-Write-Verbose "VenvExecDir Name: '$($VenvExecDir.Name)"\r
-\r
-# Set values required in priority: CmdLine, ConfigFile, Default\r
-# First, get the location of the virtual environment, it might not be\r
-# VenvExecDir if specified on the command line.\r
-if ($VenvDir) {\r
- Write-Verbose "VenvDir given as parameter, using '$VenvDir' to determine values"\r
-}\r
-else {\r
- Write-Verbose "VenvDir not given as a parameter, using parent directory name as VenvDir."\r
- $VenvDir = $VenvExecDir.Parent.FullName.TrimEnd("\\/")\r
- Write-Verbose "VenvDir=$VenvDir"\r
-}\r
-\r
-# Next, read the `pyvenv.cfg` file to determine any required value such\r
-# as `prompt`.\r
-$pyvenvCfg = Get-PyVenvConfig -ConfigDir $VenvDir\r
-\r
-# Next, set the prompt from the command line, or the config file, or\r
-# just use the name of the virtual environment folder.\r
-if ($Prompt) {\r
- Write-Verbose "Prompt specified as argument, using '$Prompt'"\r
-}\r
-else {\r
- Write-Verbose "Prompt not specified as argument to script, checking pyvenv.cfg value"\r
- if ($pyvenvCfg -and $pyvenvCfg['prompt']) {\r
- Write-Verbose " Setting based on value in pyvenv.cfg='$($pyvenvCfg['prompt'])'"\r
- $Prompt = $pyvenvCfg['prompt'];\r
- }\r
- else {\r
- Write-Verbose " Setting prompt based on parent's directory's name. (Is the directory name passed to venv module when creating the virtual environment)"\r
- Write-Verbose " Got leaf-name of $VenvDir='$(Split-Path -Path $venvDir -Leaf)'"\r
- $Prompt = Split-Path -Path $venvDir -Leaf\r
- }\r
-}\r
-\r
-Write-Verbose "Prompt = '$Prompt'"\r
-Write-Verbose "VenvDir='$VenvDir'"\r
-\r
-# Deactivate any currently active virtual environment, but leave the\r
-# deactivate function in place.\r
-deactivate -nondestructive\r
-\r
-# Now set the environment variable VIRTUAL_ENV, used by many tools to determine\r
-# that there is an activated venv.\r
-$env:VIRTUAL_ENV = $VenvDir\r
-\r
-if (-not $Env:VIRTUAL_ENV_DISABLE_PROMPT) {\r
-\r
- Write-Verbose "Setting prompt to '$Prompt'"\r
-\r
- # Set the prompt to include the env name\r
- # Make sure _OLD_VIRTUAL_PROMPT is global\r
- function global:_OLD_VIRTUAL_PROMPT { "" }\r
- Copy-Item -Path function:prompt -Destination function:_OLD_VIRTUAL_PROMPT\r
- New-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Description "Python virtual environment prompt prefix" -Scope Global -Option ReadOnly -Visibility Public -Value $Prompt\r
-\r
- function global:prompt {\r
- Write-Host -NoNewline -ForegroundColor Green "($_PYTHON_VENV_PROMPT_PREFIX) "\r
- _OLD_VIRTUAL_PROMPT\r
- }\r
- $env:VIRTUAL_ENV_PROMPT = $Prompt\r
-}\r
-\r
-# Clear PYTHONHOME\r
-if (Test-Path -Path Env:PYTHONHOME) {\r
- Copy-Item -Path Env:PYTHONHOME -Destination Env:_OLD_VIRTUAL_PYTHONHOME\r
- Remove-Item -Path Env:PYTHONHOME\r
-}\r
-\r
-# Add the venv to the PATH\r
-Copy-Item -Path Env:PATH -Destination Env:_OLD_VIRTUAL_PATH\r
-$Env:PATH = "$VenvExecDir$([System.IO.Path]::PathSeparator)$Env:PATH"\r
+<#
+.Synopsis
+Activate a Python virtual environment for the current PowerShell session.
+
+.Description
+Pushes the python executable for a virtual environment to the front of the
+$Env:PATH environment variable and sets the prompt to signify that you are
+in a Python virtual environment. Makes use of the command line switches as
+well as the `pyvenv.cfg` file values present in the virtual environment.
+
+.Parameter VenvDir
+Path to the directory that contains the virtual environment to activate. The
+default value for this is the parent of the directory that the Activate.ps1
+script is located within.
+
+.Parameter Prompt
+The prompt prefix to display when this virtual environment is activated. By
+default, this prompt is the name of the virtual environment folder (VenvDir)
+surrounded by parentheses and followed by a single space (ie. '(.venv) ').
+
+.Example
+Activate.ps1
+Activates the Python virtual environment that contains the Activate.ps1 script.
+
+.Example
+Activate.ps1 -Verbose
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and shows extra information about the activation as it executes.
+
+.Example
+Activate.ps1 -VenvDir C:\Users\MyUser\Common\.venv
+Activates the Python virtual environment located in the specified location.
+
+.Example
+Activate.ps1 -Prompt "MyPython"
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and prefixes the current prompt with the specified string (surrounded in
+parentheses) while the virtual environment is active.
+
+.Notes
+On Windows, it may be required to enable this Activate.ps1 script by setting the
+execution policy for the user. You can do this by issuing the following PowerShell
+command:
+
+PS C:\> Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
+
+For more information on Execution Policies:
+https://go.microsoft.com/fwlink/?LinkID=135170
+
+#>
+Param(
+ [Parameter(Mandatory = $false)]
+ [String]
+ $VenvDir,
+ [Parameter(Mandatory = $false)]
+ [String]
+ $Prompt
+)
+
+<# Function declarations --------------------------------------------------- #>
+
+<#
+.Synopsis
+Remove all shell session elements added by the Activate script, including the
+addition of the virtual environment's Python executable from the beginning of
+the PATH variable.
+
+.Parameter NonDestructive
+If present, do not remove this function from the global namespace for the
+session.
+
+#>
+function global:deactivate ([switch]$NonDestructive) {
+ # Revert to original values
+
+ # The prior prompt:
+ if (Test-Path -Path Function:_OLD_VIRTUAL_PROMPT) {
+ Copy-Item -Path Function:_OLD_VIRTUAL_PROMPT -Destination Function:prompt
+ Remove-Item -Path Function:_OLD_VIRTUAL_PROMPT
+ }
+
+ # The prior PYTHONHOME:
+ if (Test-Path -Path Env:_OLD_VIRTUAL_PYTHONHOME) {
+ Copy-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME -Destination Env:PYTHONHOME
+ Remove-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME
+ }
+
+ # The prior PATH:
+ if (Test-Path -Path Env:_OLD_VIRTUAL_PATH) {
+ Copy-Item -Path Env:_OLD_VIRTUAL_PATH -Destination Env:PATH
+ Remove-Item -Path Env:_OLD_VIRTUAL_PATH
+ }
+
+ # Just remove the VIRTUAL_ENV altogether:
+ if (Test-Path -Path Env:VIRTUAL_ENV) {
+ Remove-Item -Path env:VIRTUAL_ENV
+ }
+
+ # Just remove VIRTUAL_ENV_PROMPT altogether.
+ if (Test-Path -Path Env:VIRTUAL_ENV_PROMPT) {
+ Remove-Item -Path env:VIRTUAL_ENV_PROMPT
+ }
+
+ # Just remove the _PYTHON_VENV_PROMPT_PREFIX altogether:
+ if (Get-Variable -Name "_PYTHON_VENV_PROMPT_PREFIX" -ErrorAction SilentlyContinue) {
+ Remove-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Scope Global -Force
+ }
+
+ # Leave deactivate function in the global namespace if requested:
+ if (-not $NonDestructive) {
+ Remove-Item -Path function:deactivate
+ }
+}
+
+<#
+.Description
+Get-PyVenvConfig parses the values from the pyvenv.cfg file located in the
+given folder, and returns them in a map.
+
+For each line in the pyvenv.cfg file, if that line can be parsed into exactly
+two strings separated by `=` (with any amount of whitespace surrounding the =)
+then it is considered a `key = value` line. The left hand string is the key,
+the right hand is the value.
+
+If the value starts with a `'` or a `"` then the first and last character is
+stripped from the value before being captured.
+
+.Parameter ConfigDir
+Path to the directory that contains the `pyvenv.cfg` file.
+#>
+function Get-PyVenvConfig(
+ [String]
+ $ConfigDir
+) {
+ Write-Verbose "Given ConfigDir=$ConfigDir, obtain values in pyvenv.cfg"
+
+ # Ensure the file exists, and issue a warning if it doesn't (but still allow the function to continue).
+ $pyvenvConfigPath = Join-Path -Resolve -Path $ConfigDir -ChildPath 'pyvenv.cfg' -ErrorAction Continue
+
+ # An empty map will be returned if no config file is found.
+ $pyvenvConfig = @{ }
+
+ if ($pyvenvConfigPath) {
+
+ Write-Verbose "File exists, parse `key = value` lines"
+ $pyvenvConfigContent = Get-Content -Path $pyvenvConfigPath
+
+ $pyvenvConfigContent | ForEach-Object {
+ $keyval = $PSItem -split "\s*=\s*", 2
+ if ($keyval[0] -and $keyval[1]) {
+ $val = $keyval[1]
+
+ # Remove extraneous quotations around a string value.
+ if ("'""".Contains($val.Substring(0, 1))) {
+ $val = $val.Substring(1, $val.Length - 2)
+ }
+
+ $pyvenvConfig[$keyval[0]] = $val
+ Write-Verbose "Adding Key: '$($keyval[0])'='$val'"
+ }
+ }
+ }
+ return $pyvenvConfig
+}
+
+
+<# Begin Activate script --------------------------------------------------- #>
+
+# Determine the containing directory of this script
+$VenvExecPath = Split-Path -Parent $MyInvocation.MyCommand.Definition
+$VenvExecDir = Get-Item -Path $VenvExecPath
+
+Write-Verbose "Activation script is located in path: '$VenvExecPath'"
+Write-Verbose "VenvExecDir Fullname: '$($VenvExecDir.FullName)"
+Write-Verbose "VenvExecDir Name: '$($VenvExecDir.Name)"
+
+# Set values required in priority: CmdLine, ConfigFile, Default
+# First, get the location of the virtual environment, it might not be
+# VenvExecDir if specified on the command line.
+if ($VenvDir) {
+ Write-Verbose "VenvDir given as parameter, using '$VenvDir' to determine values"
+}
+else {
+ Write-Verbose "VenvDir not given as a parameter, using parent directory name as VenvDir."
+ $VenvDir = $VenvExecDir.Parent.FullName.TrimEnd("\\/")
+ Write-Verbose "VenvDir=$VenvDir"
+}
+
+# Next, read the `pyvenv.cfg` file to determine any required value such
+# as `prompt`.
+$pyvenvCfg = Get-PyVenvConfig -ConfigDir $VenvDir
+
+# Next, set the prompt from the command line, or the config file, or
+# just use the name of the virtual environment folder.
+if ($Prompt) {
+ Write-Verbose "Prompt specified as argument, using '$Prompt'"
+}
+else {
+ Write-Verbose "Prompt not specified as argument to script, checking pyvenv.cfg value"
+ if ($pyvenvCfg -and $pyvenvCfg['prompt']) {
+ Write-Verbose " Setting based on value in pyvenv.cfg='$($pyvenvCfg['prompt'])'"
+ $Prompt = $pyvenvCfg['prompt'];
+ }
+ else {
+ Write-Verbose " Setting prompt based on parent's directory's name. (Is the directory name passed to venv module when creating the virtual environment)"
+ Write-Verbose " Got leaf-name of $VenvDir='$(Split-Path -Path $venvDir -Leaf)'"
+ $Prompt = Split-Path -Path $venvDir -Leaf
+ }
+}
+
+Write-Verbose "Prompt = '$Prompt'"
+Write-Verbose "VenvDir='$VenvDir'"
+
+# Deactivate any currently active virtual environment, but leave the
+# deactivate function in place.
+deactivate -nondestructive
+
+# Now set the environment variable VIRTUAL_ENV, used by many tools to determine
+# that there is an activated venv.
+$env:VIRTUAL_ENV = $VenvDir
+
+if (-not $Env:VIRTUAL_ENV_DISABLE_PROMPT) {
+
+ Write-Verbose "Setting prompt to '$Prompt'"
+
+ # Set the prompt to include the env name
+ # Make sure _OLD_VIRTUAL_PROMPT is global
+ function global:_OLD_VIRTUAL_PROMPT { "" }
+ Copy-Item -Path function:prompt -Destination function:_OLD_VIRTUAL_PROMPT
+ New-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Description "Python virtual environment prompt prefix" -Scope Global -Option ReadOnly -Visibility Public -Value $Prompt
+
+ function global:prompt {
+ Write-Host -NoNewline -ForegroundColor Green "($_PYTHON_VENV_PROMPT_PREFIX) "
+ _OLD_VIRTUAL_PROMPT
+ }
+ $env:VIRTUAL_ENV_PROMPT = $Prompt
+}
+
+# Clear PYTHONHOME
+if (Test-Path -Path Env:PYTHONHOME) {
+ Copy-Item -Path Env:PYTHONHOME -Destination Env:_OLD_VIRTUAL_PYTHONHOME
+ Remove-Item -Path Env:PYTHONHOME
+}
+
+# Add the venv to the PATH
+Copy-Item -Path Env:PATH -Destination Env:_OLD_VIRTUAL_PATH
+$Env:PATH = "$VenvExecDir$([System.IO.Path]::PathSeparator)$Env:PATH"
-@echo off\r
-\r
-rem This file is UTF-8 encoded, so we need to update the current code page while executing it\r
-for /f "tokens=2 delims=:." %%a in ('"%SystemRoot%\System32\chcp.com"') do (\r
- set _OLD_CODEPAGE=%%a\r
-)\r
-if defined _OLD_CODEPAGE (\r
- "%SystemRoot%\System32\chcp.com" 65001 > nul\r
-)\r
-\r
-set VIRTUAL_ENV=__VENV_DIR__\r
-\r
-if not defined PROMPT set PROMPT=$P$G\r
-\r
-if defined _OLD_VIRTUAL_PROMPT set PROMPT=%_OLD_VIRTUAL_PROMPT%\r
-if defined _OLD_VIRTUAL_PYTHONHOME set PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%\r
-\r
-set _OLD_VIRTUAL_PROMPT=%PROMPT%\r
-set PROMPT=__VENV_PROMPT__%PROMPT%\r
-\r
-if defined PYTHONHOME set _OLD_VIRTUAL_PYTHONHOME=%PYTHONHOME%\r
-set PYTHONHOME=\r
-\r
-if defined _OLD_VIRTUAL_PATH set PATH=%_OLD_VIRTUAL_PATH%\r
-if not defined _OLD_VIRTUAL_PATH set _OLD_VIRTUAL_PATH=%PATH%\r
-\r
-set PATH=%VIRTUAL_ENV%\__VENV_BIN_NAME__;%PATH%\r
-set VIRTUAL_ENV_PROMPT=__VENV_PROMPT__\r
-\r
-:END\r
-if defined _OLD_CODEPAGE (\r
- "%SystemRoot%\System32\chcp.com" %_OLD_CODEPAGE% > nul\r
- set _OLD_CODEPAGE=\r
-)\r
+@echo off
+
+rem This file is UTF-8 encoded, so we need to update the current code page while executing it
+for /f "tokens=2 delims=:." %%a in ('"%SystemRoot%\System32\chcp.com"') do (
+ set _OLD_CODEPAGE=%%a
+)
+if defined _OLD_CODEPAGE (
+ "%SystemRoot%\System32\chcp.com" 65001 > nul
+)
+
+set VIRTUAL_ENV=__VENV_DIR__
+
+if not defined PROMPT set PROMPT=$P$G
+
+if defined _OLD_VIRTUAL_PROMPT set PROMPT=%_OLD_VIRTUAL_PROMPT%
+if defined _OLD_VIRTUAL_PYTHONHOME set PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%
+
+set _OLD_VIRTUAL_PROMPT=%PROMPT%
+set PROMPT=__VENV_PROMPT__%PROMPT%
+
+if defined PYTHONHOME set _OLD_VIRTUAL_PYTHONHOME=%PYTHONHOME%
+set PYTHONHOME=
+
+if defined _OLD_VIRTUAL_PATH set PATH=%_OLD_VIRTUAL_PATH%
+if not defined _OLD_VIRTUAL_PATH set _OLD_VIRTUAL_PATH=%PATH%
+
+set PATH=%VIRTUAL_ENV%\__VENV_BIN_NAME__;%PATH%
+set VIRTUAL_ENV_PROMPT=__VENV_PROMPT__
+
+:END
+if defined _OLD_CODEPAGE (
+ "%SystemRoot%\System32\chcp.com" %_OLD_CODEPAGE% > nul
+ set _OLD_CODEPAGE=
+)
-@echo off\r
-\r
-if defined _OLD_VIRTUAL_PROMPT (\r
- set "PROMPT=%_OLD_VIRTUAL_PROMPT%"\r
-)\r
-set _OLD_VIRTUAL_PROMPT=\r
-\r
-if defined _OLD_VIRTUAL_PYTHONHOME (\r
- set "PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%"\r
- set _OLD_VIRTUAL_PYTHONHOME=\r
-)\r
-\r
-if defined _OLD_VIRTUAL_PATH (\r
- set "PATH=%_OLD_VIRTUAL_PATH%"\r
-)\r
-\r
-set _OLD_VIRTUAL_PATH=\r
-\r
-set VIRTUAL_ENV=\r
-set VIRTUAL_ENV_PROMPT=\r
-\r
-:END\r
+@echo off
+
+if defined _OLD_VIRTUAL_PROMPT (
+ set "PROMPT=%_OLD_VIRTUAL_PROMPT%"
+)
+set _OLD_VIRTUAL_PROMPT=
+
+if defined _OLD_VIRTUAL_PYTHONHOME (
+ set "PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%"
+ set _OLD_VIRTUAL_PYTHONHOME=
+)
+
+if defined _OLD_VIRTUAL_PATH (
+ set "PATH=%_OLD_VIRTUAL_PATH%"
+)
+
+set _OLD_VIRTUAL_PATH=
+
+set VIRTUAL_ENV=
+set VIRTUAL_ENV_PROMPT=
+
+:END
end
if test -n "$_OLD_FISH_PROMPT_OVERRIDE"
- functions -e fish_prompt
set -e _OLD_FISH_PROMPT_OVERRIDE
- functions -c _old_fish_prompt fish_prompt
- functions -e _old_fish_prompt
+ # prevents error when using nested fish instances (Issue #93858)
+ if functions -q _old_fish_prompt
+ functions -e fish_prompt
+ functions -c _old_fish_prompt fish_prompt
+ functions -e _old_fish_prompt
+ end
end
set -e VIRTUAL_ENV
# (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
-# Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
-# Also licenced under the Apache License, 2.0: http://opensource.org/licenses/apache2.0.php
+# Licensed under the MIT license: https://opensource.org/licenses/mit-license.php
+# Also licenced under the Apache License, 2.0: https://opensource.org/licenses/apache2.0.php
# Licensed to PSF under a Contributor Agreement
"""
Middleware to check for obedience to the WSGI specification.
raise ZipImportError(f"can't open Zip file: {archive!r}", path=archive)
with fp:
+ # GH-87235: On macOS all file descriptors for /dev/fd/N share the same
+ # file offset, reset the file offset after scanning the zipfile diretory
+ # to not cause problems when some runs 'python3 /dev/fd/9 9<some_script'
+ start_offset = fp.tell()
try:
- fp.seek(-END_CENTRAL_DIR_SIZE, 2)
- header_position = fp.tell()
- buffer = fp.read(END_CENTRAL_DIR_SIZE)
- except OSError:
- raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
- if len(buffer) != END_CENTRAL_DIR_SIZE:
- raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
- if buffer[:4] != STRING_END_ARCHIVE:
- # Bad: End of Central Dir signature
- # Check if there's a comment.
try:
- fp.seek(0, 2)
- file_size = fp.tell()
- except OSError:
- raise ZipImportError(f"can't read Zip file: {archive!r}",
- path=archive)
- max_comment_start = max(file_size - MAX_COMMENT_LEN -
- END_CENTRAL_DIR_SIZE, 0)
- try:
- fp.seek(max_comment_start)
- data = fp.read()
- except OSError:
- raise ZipImportError(f"can't read Zip file: {archive!r}",
- path=archive)
- pos = data.rfind(STRING_END_ARCHIVE)
- if pos < 0:
- raise ZipImportError(f'not a Zip file: {archive!r}',
- path=archive)
- buffer = data[pos:pos+END_CENTRAL_DIR_SIZE]
- if len(buffer) != END_CENTRAL_DIR_SIZE:
- raise ZipImportError(f"corrupt Zip file: {archive!r}",
- path=archive)
- header_position = file_size - len(data) + pos
-
- header_size = _unpack_uint32(buffer[12:16])
- header_offset = _unpack_uint32(buffer[16:20])
- if header_position < header_size:
- raise ZipImportError(f'bad central directory size: {archive!r}', path=archive)
- if header_position < header_offset:
- raise ZipImportError(f'bad central directory offset: {archive!r}', path=archive)
- header_position -= header_size
- arc_offset = header_position - header_offset
- if arc_offset < 0:
- raise ZipImportError(f'bad central directory size or offset: {archive!r}', path=archive)
-
- files = {}
- # Start of Central Directory
- count = 0
- try:
- fp.seek(header_position)
- except OSError:
- raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
- while True:
- buffer = fp.read(46)
- if len(buffer) < 4:
- raise EOFError('EOF read where not expected')
- # Start of file header
- if buffer[:4] != b'PK\x01\x02':
- break # Bad: Central Dir File Header
- if len(buffer) != 46:
- raise EOFError('EOF read where not expected')
- flags = _unpack_uint16(buffer[8:10])
- compress = _unpack_uint16(buffer[10:12])
- time = _unpack_uint16(buffer[12:14])
- date = _unpack_uint16(buffer[14:16])
- crc = _unpack_uint32(buffer[16:20])
- data_size = _unpack_uint32(buffer[20:24])
- file_size = _unpack_uint32(buffer[24:28])
- name_size = _unpack_uint16(buffer[28:30])
- extra_size = _unpack_uint16(buffer[30:32])
- comment_size = _unpack_uint16(buffer[32:34])
- file_offset = _unpack_uint32(buffer[42:46])
- header_size = name_size + extra_size + comment_size
- if file_offset > header_offset:
- raise ZipImportError(f'bad local header offset: {archive!r}', path=archive)
- file_offset += arc_offset
-
- try:
- name = fp.read(name_size)
+ fp.seek(-END_CENTRAL_DIR_SIZE, 2)
+ header_position = fp.tell()
+ buffer = fp.read(END_CENTRAL_DIR_SIZE)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
- if len(name) != name_size:
+ if len(buffer) != END_CENTRAL_DIR_SIZE:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
- # On Windows, calling fseek to skip over the fields we don't use is
- # slower than reading the data because fseek flushes stdio's
- # internal buffers. See issue #8745.
+ if buffer[:4] != STRING_END_ARCHIVE:
+ # Bad: End of Central Dir signature
+ # Check if there's a comment.
+ try:
+ fp.seek(0, 2)
+ file_size = fp.tell()
+ except OSError:
+ raise ZipImportError(f"can't read Zip file: {archive!r}",
+ path=archive)
+ max_comment_start = max(file_size - MAX_COMMENT_LEN -
+ END_CENTRAL_DIR_SIZE, 0)
+ try:
+ fp.seek(max_comment_start)
+ data = fp.read()
+ except OSError:
+ raise ZipImportError(f"can't read Zip file: {archive!r}",
+ path=archive)
+ pos = data.rfind(STRING_END_ARCHIVE)
+ if pos < 0:
+ raise ZipImportError(f'not a Zip file: {archive!r}',
+ path=archive)
+ buffer = data[pos:pos+END_CENTRAL_DIR_SIZE]
+ if len(buffer) != END_CENTRAL_DIR_SIZE:
+ raise ZipImportError(f"corrupt Zip file: {archive!r}",
+ path=archive)
+ header_position = file_size - len(data) + pos
+
+ header_size = _unpack_uint32(buffer[12:16])
+ header_offset = _unpack_uint32(buffer[16:20])
+ if header_position < header_size:
+ raise ZipImportError(f'bad central directory size: {archive!r}', path=archive)
+ if header_position < header_offset:
+ raise ZipImportError(f'bad central directory offset: {archive!r}', path=archive)
+ header_position -= header_size
+ arc_offset = header_position - header_offset
+ if arc_offset < 0:
+ raise ZipImportError(f'bad central directory size or offset: {archive!r}', path=archive)
+
+ files = {}
+ # Start of Central Directory
+ count = 0
try:
- if len(fp.read(header_size - name_size)) != header_size - name_size:
- raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
+ fp.seek(header_position)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
+ while True:
+ buffer = fp.read(46)
+ if len(buffer) < 4:
+ raise EOFError('EOF read where not expected')
+ # Start of file header
+ if buffer[:4] != b'PK\x01\x02':
+ break # Bad: Central Dir File Header
+ if len(buffer) != 46:
+ raise EOFError('EOF read where not expected')
+ flags = _unpack_uint16(buffer[8:10])
+ compress = _unpack_uint16(buffer[10:12])
+ time = _unpack_uint16(buffer[12:14])
+ date = _unpack_uint16(buffer[14:16])
+ crc = _unpack_uint32(buffer[16:20])
+ data_size = _unpack_uint32(buffer[20:24])
+ file_size = _unpack_uint32(buffer[24:28])
+ name_size = _unpack_uint16(buffer[28:30])
+ extra_size = _unpack_uint16(buffer[30:32])
+ comment_size = _unpack_uint16(buffer[32:34])
+ file_offset = _unpack_uint32(buffer[42:46])
+ header_size = name_size + extra_size + comment_size
+ if file_offset > header_offset:
+ raise ZipImportError(f'bad local header offset: {archive!r}', path=archive)
+ file_offset += arc_offset
- if flags & 0x800:
- # UTF-8 file names extension
- name = name.decode()
- else:
- # Historical ZIP filename encoding
try:
- name = name.decode('ascii')
- except UnicodeDecodeError:
- name = name.decode('latin1').translate(cp437_table)
-
- name = name.replace('/', path_sep)
- path = _bootstrap_external._path_join(archive, name)
- t = (path, compress, data_size, file_size, file_offset, time, date, crc)
- files[name] = t
- count += 1
+ name = fp.read(name_size)
+ except OSError:
+ raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
+ if len(name) != name_size:
+ raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
+ # On Windows, calling fseek to skip over the fields we don't use is
+ # slower than reading the data because fseek flushes stdio's
+ # internal buffers. See issue #8745.
+ try:
+ if len(fp.read(header_size - name_size)) != header_size - name_size:
+ raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
+ except OSError:
+ raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
+
+ if flags & 0x800:
+ # UTF-8 file names extension
+ name = name.decode()
+ else:
+ # Historical ZIP filename encoding
+ try:
+ name = name.decode('ascii')
+ except UnicodeDecodeError:
+ name = name.decode('latin1').translate(cp437_table)
+
+ name = name.replace('/', path_sep)
+ path = _bootstrap_external._path_join(archive, name)
+ t = (path, compress, data_size, file_size, file_offset, time, date, crc)
+ files[name] = t
+ count += 1
+ finally:
+ fp.seek(start_offset)
_bootstrap._verbose_message('zipimport: found {} names in {!r}', count, archive)
return files
),
),
dict(
- name="SQLite 3.38.4",
- url="https://sqlite.org/2022/sqlite-autoconf-3380400.tar.gz",
- checksum="34c0b92a0609ed4ce78582e8dc1ed45a",
+ name="SQLite 3.39.4",
+ url="https://sqlite.org/2022/sqlite-autoconf-3390400.tar.gz",
+ checksum="44b7e6691b0954086f717a6c43b622a5",
extra_cflags=('-Os '
'-DSQLITE_ENABLE_FTS5 '
'-DSQLITE_ENABLE_FTS4 '
HISTORY OF THE SOFTWARE\
\f1\b0 \ulnone \
-Python was created in the early 1990s by Guido van Rossum at Stichting Mathematisch Centrum (CWI, see http://www.cwi.nl) in the Netherlands as a successor of a language called ABC. Guido remains Python's principal author, although it includes many contributions from others.\
+Python was created in the early 1990s by Guido van Rossum at Stichting Mathematisch Centrum (CWI, see https://www.cwi.nl) in the Netherlands as a successor of a language called ABC. Guido remains Python's principal author, although it includes many contributions from others.\
\
-In 1995, Guido continued his work on Python at the Corporation for National Research Initiatives (CNRI, see http://www.cnri.reston.va.us) in Reston, Virginia where he released several versions of the software.\
+In 1995, Guido continued his work on Python at the Corporation for National Research Initiatives (CNRI, see https://www.cnri.reston.va.us) in Reston, Virginia where he released several versions of the software.\
\
-In May 2000, Guido and the Python core development team moved to BeOpen.com to form the BeOpen PythonLabs team. In October of the same year, the PythonLabs team moved to Digital Creations (now Zope Corporation, see http://www.zope.org). In 2001, the Python Software Foundation (PSF, see https://www.python.org/psf/) was formed, a non-profit organization created specifically to own Python-related Intellectual Property. Zope Corporation is a sponsoring member of the PSF.\
+In May 2000, Guido and the Python core development team moved to BeOpen.com to form the BeOpen PythonLabs team. In October of the same year, the PythonLabs team moved to Digital Creations (now Zope Corporation, see https://www.zope.dev). In 2001, the Python Software Foundation (PSF, see https://www.python.org/psf/) was formed, a non-profit organization created specifically to own Python-related Intellectual Property. Zope Corporation is a sponsoring member of the PSF.\
\
-All Python releases are Open Source (see http://www.opensource.org for the Open Source Definition). Historically, most, but not all, Python releases have also been GPL-compatible; the table below summarizes the various releases.\
+All Python releases are Open Source (see https://opensource.org for the Open Source Definition). Historically, most, but not all, Python releases have also been GPL-compatible; the table below summarizes the various releases.\
\
\f2\b Release Derived Year Owner GPL-\
debug = 0
def isclean(name):
- if name == 'CVS': return 0
- if name == '.cvsignore': return 0
- if name == '.DS_store': return 0
- if name == '.svn': return 0
+ if name in ('CVS', '.cvsignore', '.svn'):
+ return 0
+ if name.lower() == '.ds_store': return 0
if name.endswith('~'): return 0
if name.endswith('.BAK'): return 0
if name.endswith('.pyc'): return 0
This document provides a quick overview of some macOS specific features in
the Python distribution.
+Compilers for building on macOS
+===============================
+
+The core developers primarily test builds on macOS with Apple's compiler tools,
+either Xcode or the Command Line Tools. For these we only support building with
+a compiler that includes an SDK that targets the OS on the build machine, that is
+the version of Xcode that shipped with the OS version or one newer.
+
+For example, for macOS 12 we support Xcode 13 and Xcode 14 (or the corresponding
+Command Line Tools).
+
+Building with other compilers, such as GCC, likely works, but is not actively supported.
+
macOS specific arguments to configure
=====================================
# wasm assets directory is relative to current build dir, e.g. "./usr/local".
# --preload-file turns a relative asset path into an absolute path.
+.PHONY: wasm_stdlib
+wasm_stdlib: $(WASM_STDLIB)
$(WASM_STDLIB): $(srcdir)/Lib/*.py $(srcdir)/Lib/*/*.py \
$(srcdir)/Tools/wasm/wasm_assets.py \
- Makefile pybuilddir.txt Modules/Setup.local \
- python.html python.worker.js
+ Makefile pybuilddir.txt Modules/Setup.local
$(PYTHON_FOR_BUILD) $(srcdir)/Tools/wasm/wasm_assets.py \
--buildroot . --prefix $(prefix)
fi
$(TESTRUNNER) -j 1 -u all -W --slowest --fail-env-changed --timeout=$(TESTTIMEOUT) $(TESTOPTS)
+# Like testall, but run Python tests with HOSTRUNNER directly.
+hostrunnertest: all
+ $(RUNSHARED) $(HOSTRUNNER) ./$(BUILDPYTHON) -m test -u all $(TESTOPTS)
+
pythoninfo: all
$(RUNSHARED) $(HOSTRUNNER) ./$(BUILDPYTHON) -m test.pythoninfo
test/test_warnings test/test_warnings/data \
test/test_zoneinfo test/test_zoneinfo/data \
test/tracedmodules \
+ test/typinganndata \
test/xmltestdata test/xmltestdata/c14n-20 \
test/ziptestdata \
tkinter/test tkinter/test/test_tkinter \
-rm -f gb-18030-2000.xml
docclean:
- -rm -rf Doc/build
- -rm -rf Doc/tools/sphinx Doc/tools/pygments Doc/tools/docutils
+ $(MAKE) -C $(srcdir)/Doc clean
# like the 'clean' target but retain the profile guided optimization (PGO)
# data. The PGO data is only valid if source code remains unchanged.
# Make things extra clean, before making a distribution:
# remove all generated files, even Makefile[.pre]
# Keep configure and Python-ast.[ch], it's possible they can't be generated
-distclean: clobber
+distclean: clobber docclean
for file in $(srcdir)/Lib/test/data/* ; do \
if test "$$file" != "$(srcdir)/Lib/test/data/README"; then rm "$$file"; fi; \
done
MODULE_CMATH_DEPS=$(srcdir)/Modules/_math.h
MODULE_MATH_DEPS=$(srcdir)/Modules/_math.h
-MODULE_PYEXPAT_DEPS=$(LIBEXPAT_HEADERS) @LIBEXPAT_INTERNAL@
+MODULE_PYEXPAT_DEPS=@LIBEXPAT_INTERNAL@
MODULE_UNICODEDATA_DEPS=$(srcdir)/Modules/unicodedata_db.h $(srcdir)/Modules/unicodename_db.h
MODULE__BLAKE2_DEPS=$(srcdir)/Modules/_blake2/impl/blake2-config.h $(srcdir)/Modules/_blake2/impl/blake2-impl.h $(srcdir)/Modules/_blake2/impl/blake2.h $(srcdir)/Modules/_blake2/impl/blake2b-load-sse2.h $(srcdir)/Modules/_blake2/impl/blake2b-load-sse41.h $(srcdir)/Modules/_blake2/impl/blake2b-ref.c $(srcdir)/Modules/_blake2/impl/blake2b-round.h $(srcdir)/Modules/_blake2/impl/blake2b.c $(srcdir)/Modules/_blake2/impl/blake2s-load-sse2.h $(srcdir)/Modules/_blake2/impl/blake2s-load-sse41.h $(srcdir)/Modules/_blake2/impl/blake2s-load-xop.h $(srcdir)/Modules/_blake2/impl/blake2s-ref.c $(srcdir)/Modules/_blake2/impl/blake2s-round.h $(srcdir)/Modules/_blake2/impl/blake2s.c $(srcdir)/Modules/_blake2/blake2module.h $(srcdir)/Modules/hashlib.h
MODULE__CTYPES_DEPS=$(srcdir)/Modules/_ctypes/ctypes.h
-MODULE__DECIMAL_DEPS=$(srcdir)/Modules/_decimal/docstrings.h $(LIBMPDEC_HEADERS) @LIBMPDEC_INTERNAL@
-MODULE__ELEMENTTREE_DEPS=$(srcdir)/Modules/pyexpat.c $(LIBEXPAT_HEADERS) @LIBEXPAT_INTERNAL@
+MODULE__DECIMAL_DEPS=$(srcdir)/Modules/_decimal/docstrings.h @LIBMPDEC_INTERNAL@
+MODULE__ELEMENTTREE_DEPS=$(srcdir)/Modules/pyexpat.c @LIBEXPAT_INTERNAL@
MODULE__HASHLIB_DEPS=$(srcdir)/Modules/hashlib.h
MODULE__IO_DEPS=$(srcdir)/Modules/_io/_iomodule.h
MODULE__MD5_DEPS=$(srcdir)/Modules/hashlib.h
the Open Source Initiative's entry for the Python Software Foundation
License::
- http://www.opensource.org/licenses/PythonSoftFoundation.php
+ https://opensource.org/licenses/PythonSoftFoundation.php
says "Python 2.1.1" all over it, wondering whether it applies only
to Python 2.1.1.
+++ /dev/null
-+++++++++++
-Python News
-+++++++++++
-
-What's New in Python 3.11.0 final?
-==================================
-
-*Release date: 2022-10-24*
-
-Security
---------
-
-- gh-issue-97616: Fix multiplying a list by an integer (``list *= int``):
- detect the integer overflow when the new allocated length is close to the
- maximum size. Issue reported by Jordan Limor. Patch by Victor Stinner.
-
-- gh-issue-97514: On Linux the :mod:`multiprocessing` module returns to
- using filesystem backed unix domain sockets for communication with the
- *forkserver* process instead of the Linux abstract socket namespace. Only
- code that chooses to use the :ref:`"forkserver" start method
- <multiprocessing-start-methods>` is affected.
-
- Abstract sockets have no permissions and could allow any user on the
- system in the same `network namespace
- <https://man7.org/linux/man-pages/man7/network_namespaces.7.html>`_ (often
- the whole system) to inject code into the multiprocessing *forkserver*
- process. This was a potential privilege escalation. Filesystem based
- socket permissions restrict this to the *forkserver* process user as was
- the default in Python 3.8 and earlier.
-
- This prevents Linux `CVE-2022-42919
- <https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-42919>`_.
-
-Core and Builtins
------------------
-
-- gh-issue-97002: Fix an issue where several frame objects could be backed
- by the same interpreter frame, possibly leading to corrupted memory and
- hard crashes of the interpreter.
-
-- gh-issue-97752: Fix possible data corruption or crashes when accessing the
- ``f_back`` member of newly-created generator or coroutine frames.
-
-- gh-issue-96975: Fix a crash occurring when :c:func:`PyEval_GetFrame` is
- called while the topmost Python frame is in a partially-initialized state.
-
-- gh-issue-96848: Fix command line parsing: reject :option:`-X
- int_max_str_digits <-X>` option with no value (invalid) when the
- :envvar:`PYTHONINTMAXSTRDIGITS` environment variable is set to a valid
- limit. Patch by Victor Stinner.
-
-- gh-issue-96821: Fix undefined behaviour in ``_testcapimodule.c``.
-
-- gh-issue-95778: When :exc:`ValueError` is raised if an integer is larger
- than the limit, mention the :func:`sys.set_int_max_str_digits` function in
- the error message. Patch by Victor Stinner.
-
-- gh-issue-96587: Correctly raise ``SyntaxError`` on exception groups
- (:pep:`654`) on python versions prior to 3.11
-
-- bpo-42316: Document some places where an assignment expression needs
- parentheses.
-
-Library
--------
-
-- gh-issue-98331: Update the bundled copies of pip and setuptools to
- versions 22.3 and 65.5.0 respectively.
-
-- gh-issue-90985: Earlier in 3.11 we deprecated
- ``asyncio.Task.cancel("message")``. We realized we were too harsh, and
- have undeprecated it.
-
-- gh-issue-97545: Make Semaphore run faster.
-
-- gh-issue-96865: fix Flag to use boundary CONFORM
-
- This restores previous Flag behavior of allowing flags with non-sequential
- values to be combined; e.g.
-
- class Skip(Flag): TWO = 2 EIGHT = 8
-
- Skip.TWO | Skip.EIGHT -> <Skip.TWO|EIGHT: 10>
-
-- gh-issue-90155: Fix broken :class:`asyncio.Semaphore` when acquire is
- cancelled.
-
-Documentation
--------------
-
-- gh-issue-97741: Fix ``!`` in c domain ref target syntax via a ``conf.py``
- patch, so it works as intended to disable ref target resolution.
-
-- gh-issue-93031: Update tutorial introduction output to use 3.10+
- SyntaxError invalid range.
-
-Tests
------
-
-- gh-issue-95027: On Windows, when the Python test suite is run with the
- ``-jN`` option, the ANSI code page is now used as the encoding for the
- stdout temporary file, rather than using UTF-8 which can lead to decoding
- errors. Patch by Victor Stinner.
-
-Build
------
-
-- gh-issue-96729: Ensure that Windows releases built with
- ``Tools\msi\buildrelease.bat`` are upgradable to and from official Python
- releases.
-
-Windows
--------
-
-- gh-issue-98360: Fixes :mod:`multiprocessing` spawning child processes on
- Windows from a virtual environment to ensure that child processes that
- also use :mod:`multiprocessing` to spawn more children will recognize that
- they are in a virtual environment.
-
-- gh-issue-98414: Fix :file:`py.exe` launcher handling of ``-V:<company>/``
- option when default preferences have been set in environment variables or
- configuration files.
-
-- gh-issue-90989: Clarify some text in the Windows installer.
-
-macOS
------
-
-- gh-issue-97897: The macOS 13 SDK includes support for the ``mkfifoat`` and
- ``mknodat`` system calls. Using the ``dir_fd`` option with either
- :func:`os.mkfifo` or :func:`os.mknod` could result in a segfault if
- cpython is built with the macOS 13 SDK but run on an earlier version of
- macOS. Prevent this by adding runtime support for detection of these
- system calls ("weaklinking") as is done for other newer syscalls on macOS.
-
-
-What's New in Python 3.11.0 release candidate 2?
-================================================
-
-*Release date: 2022-09-11*
-
-Security
---------
-
-- gh-issue-95778: Converting between :class:`int` and :class:`str` in bases
- other than 2 (binary), 4, 8 (octal), 16 (hexadecimal), or 32 such as base
- 10 (decimal) now raises a :exc:`ValueError` if the number of digits in
- string form is above a limit to avoid potential denial of service attacks
- due to the algorithmic complexity. This is a mitigation for
- `CVE-2020-10735
- <https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10735>`_.
-
- This new limit can be configured or disabled by environment variable,
- command line flag, or :mod:`sys` APIs. See the :ref:`integer string
- conversion length limitation <int_max_str_digits>` documentation. The
- default limit is 4300 digits in string form.
-
- Patch by Gregory P. Smith [Google] and Christian Heimes [Red Hat] with
- feedback from Victor Stinner, Thomas Wouters, Steve Dower, Ned Deily, and
- Mark Dickinson.
-
-Core and Builtins
------------------
-
-- gh-issue-96678: Fix case of undefined behavior in ceval.c
-
-- gh-issue-96641: Do not expose ``KeyWrapper`` in :mod:`_functools`.
-
-- gh-issue-96636: Ensure that tracing, ``sys.setrace()``, is turned on
- immediately. In pre-release versions of 3.11, some tracing events might
- have been lost when turning on tracing in a ``__del__`` method or
- interrupt.
-
-- gh-issue-96572: Fix use after free in trace refs build mode. Patch by
- Kumar Aditya.
-
-- gh-issue-96611: When loading a file with invalid UTF-8 inside a multi-line
- string, a correct SyntaxError is emitted.
-
-- gh-issue-96612: Make sure that incomplete frames do not show up in
- tracemalloc traces.
-
-- gh-issue-96569: Remove two cases of undefined behavior, by adding NULL
- checks.
-
-- gh-issue-96582: Fix possible ``NULL`` pointer dereference in
- ``_PyThread_CurrentFrames``. Patch by Kumar Aditya.
-
-- gh-issue-96352: Fix :exc:`AttributeError` missing ``name`` and ``obj``
- attributes in :meth:`object.__getattribute__`. Patch by Philip Georgi.
-
-- gh-issue-96268: Loading a file with invalid UTF-8 will now report the
- broken character at the correct location.
-
-- gh-issue-96187: Fixed a bug that caused ``_PyCode_GetExtra`` to return
- garbage for negative indexes. Patch by Pablo Galindo
-
-- gh-issue-96071: Fix a deadlock in :c:func:`PyGILState_Ensure` when
- allocating new thread state. Patch by Kumar Aditya.
-
-- gh-issue-96046: :c:func:`PyType_Ready` now initializes ``ht_cached_keys``
- and performs additional checks to ensure that type objects are properly
- configured. This avoids crashes in 3rd party packages that don't use
- regular API to create new types.
-
-- gh-issue-95818: Skip over incomplete frames in
- :c:func:`PyThreadState_GetFrame`.
-
-- gh-issue-95876: Fix format string in
- ``_PyPegen_raise_error_known_location`` that can lead to memory corruption
- on some 64bit systems. The function was building a tuple with ``i`` (int)
- instead of ``n`` (Py_ssize_t) for Py_ssize_t arguments.
-
-- gh-issue-95605: Fix misleading contents of error message when converting
- an all-whitespace string to :class:`float`.
-
-- gh-issue-94996: :func:`ast.parse` will no longer parse function
- definitions with positional-only params when passed ``feature_version``
- less than ``(3, 8)``. Patch by Shantanu Jain.
-
-Library
--------
-
-- gh-issue-96700: Fix incorrect error message in the :mod:`io` module.
-
-- gh-issue-96652: Fix the faulthandler implementation of
- ``faulthandler.register(signal, chain=True)`` if the ``sigaction()``
- function is not available: don't call the previous signal handler if it's
- NULL. Patch by Victor Stinner.
-
-- gh-issue-68163: Correct conversion of :class:`numbers.Rational`'s to
- :class:`float`.
-
-- gh-issue-96385: Fix ``TypeVarTuple.__typing_prepare_subst__``.
- ``TypeError`` was not raised when using more than one ``TypeVarTuple``,
- like ``[*T, *V]`` in type alias substitutions.
-
-- gh-issue-90467: Fix :class:`asyncio.streams.StreamReaderProtocol` to keep
- a strong reference to the created task, so that it's not garbage collected
-
-- gh-issue-96159: Fix a performance regression in logging
- TimedRotatingFileHandler. Only check for special files when the rollover
- time has passed.
-
-- gh-issue-96175: Fix unused ``localName`` parameter in the ``Attr`` class
- in :mod:`xml.dom.minidom`.
-
-- gh-issue-96125: Fix incorrect condition that causes
- ``sys.thread_info.name`` to be wrong on pthread platforms.
-
-- gh-issue-95463: Remove an incompatible change from :issue:`28080` that
- caused a regression that ignored the utf8 in ``ZipInfo.flag_bits``. Patch
- by Pablo Galindo.
-
-- gh-issue-95899: Fix :class:`asyncio.Runner` to call
- :func:`asyncio.set_event_loop` only once to avoid calling
- :meth:`~asyncio.AbstractChildWatcher.attach_loop` multiple times on child
- watchers. Patch by Kumar Aditya.
-
-- gh-issue-95736: Fix :class:`unittest.IsolatedAsyncioTestCase` to set event
- loop before calling setup functions. Patch by Kumar Aditya.
-
-- gh-issue-95704: When a task catches :exc:`asyncio.CancelledError` and
- raises some other error, the other error should generally not silently be
- suppressed.
-
-- gh-issue-95231: Fail gracefully if :data:`~errno.EPERM` or
- :data:`~errno.ENOSYS` is raised when loading :mod:`crypt` methods. This
- may happen when trying to load ``MD5`` on a Linux kernel with :abbr:`FIPS
- (Federal Information Processing Standard)` enabled.
-
-- gh-issue-74116: Allow :meth:`asyncio.StreamWriter.drain` to be awaited
- concurrently by multiple tasks. Patch by Kumar Aditya.
-
-- gh-issue-92986: Fix :func:`ast.unparse` when ``ImportFrom.level`` is None
-
-Documentation
--------------
-
-- gh-issue-96098: Improve discoverability of the higher level
- concurrent.futures module by providing clearer links from the lower level
- threading and multiprocessing modules.
-
-- gh-issue-95957: What's New 3.11 now has instructions for how to provide
- compiler and linker flags for Tcl/Tk and OpenSSL on RHEL 7 and CentOS 7.
-
-Tests
------
-
-- gh-issue-95243: Mitigate the inherent race condition from using
- find_unused_port() in testSockName() by trying to find an unused port a
- few times before failing. Patch by Ross Burton.
-
-Build
------
-
-- gh-issue-94682: Build and test with OpenSSL 1.1.1q
-
-Windows
--------
-
-- gh-issue-96577: Fixes a potential buffer overrun in :mod:`msilib`.
-
-- gh-issue-96559: Fixes the Windows launcher not using the compatible
- interpretation of default tags found in configuration files when no tag
- was passed to the command.
-
-
-What's New in Python 3.11.0 release candidate 1?
-================================================
-
-*Release date: 2022-08-05*
-
-Core and Builtins
------------------
-
-- gh-issue-95150: Update code object hashing and equality to consider all
- debugging and exception handling tables. This fixes an issue where certain
- non-identical code objects could be "deduplicated" during compilation.
-
-- gh-issue-95355: ``_PyPegen_Parser_New`` now properly detects token memory
- allocation errors. Patch by Honglin Zhu.
-
-- gh-issue-90081: Run Python code in tracer/profiler function at full speed.
- Fixes slowdown in earlier versions of 3.11.
-
-- gh-issue-95324: Emit a warning in debug mode if an object does not call
- :c:func:`PyObject_GC_UnTrack` before deallocation. Patch by Pablo Galindo.
-
-- gh-issue-95185: Prevented crashes in the AST constructor when compiling
- some absurdly long expressions like ``"+0"*1000000``.
- :exc:`RecursionError` is now raised instead. Patch by Pablo Galindo
-
-- gh-issue-93351: :class:`ast.AST` node positions are now validated when
- provided to :func:`compile` and other related functions. If invalid
- positions are detected, a :exc:`ValueError` will be raised.
-
-- gh-issue-94938: Fix error detection in some builtin functions when keyword
- argument name is an instance of a str subclass with overloaded ``__eq__``
- and ``__hash__``. Previously it could cause SystemError or other undesired
- behavior.
-
-Library
--------
-
-- gh-issue-95609: Update bundled pip to 22.2.2.
-
-- gh-issue-95289: Fix :class:`asyncio.TaskGroup` to propagate exception when
- :exc:`asyncio.CancelledError` was replaced with another exception by a
- context manger. Patch by Kumar Aditya and Guido van Rossum.
-
-- gh-issue-95339: Update bundled pip to 22.2.1.
-
-- gh-issue-95045: Fix GC crash when deallocating ``_lsprof.Profiler`` by
- untracking it before calling any callbacks. Patch by Kumar Aditya.
-
-- gh-issue-95097: Fix :func:`asyncio.run` for :class:`asyncio.Task`
- implementations without :meth:`~asyncio.Task.uncancel` method. Patch by
- Kumar Aditya.
-
-- gh-issue-93899: Fix check for existence of :data:`os.EFD_CLOEXEC`,
- :data:`os.EFD_NONBLOCK` and :data:`os.EFD_SEMAPHORE` flags on older kernel
- versions where these flags are not present. Patch by Kumar Aditya.
-
-- gh-issue-95166: Fix :meth:`concurrent.futures.Executor.map` to cancel the
- currently waiting on future on an error - e.g. TimeoutError or
- KeyboardInterrupt.
-
-- gh-issue-95109: Ensure that timeouts scheduled with
- :class:`asyncio.Timeout` that have already expired are delivered promptly.
-
-- gh-issue-91810: Suppress writing an XML declaration in open files in
- ``ElementTree.write()`` with ``encoding='unicode'`` and
- ``xml_declaration=None``.
-
-- gh-issue-91447: Fix findtext in the xml module to only give an empty
- string when the text attribute is set to None.
-
-Documentation
--------------
-
-- gh-issue-91207: Fix stylesheet not working in Windows CHM htmlhelp docs
- and add warning that they are deprecated. Contributed by C.A.M. Gerlach.
-
-- gh-issue-95451: Update library documentation with :ref:`availability
- information <wasm-availability>` on WebAssembly platforms
- ``wasm32-emscripten`` and ``wasm32-wasi``.
-
-- gh-issue-95415: Use consistent syntax for platform availability. The
- directive now supports a content body and emits a warning when it
- encounters an unknown platform.
-
-- gh-issue-86128: Document a limitation in ThreadPoolExecutor where its exit
- handler is executed before any handlers in atexit.
-
-Tests
------
-
-- gh-issue-95573: :source:`Lib/test/test_asyncio/test_ssl.py` exposed a bug
- in the macOS kernel where intense concurrent load on non-blocking sockets
- occasionally causes :const:`errno.ENOBUFS` ("No buffer space available")
- to be emitted. FB11063974 filed with Apple, in the mean time as a
- workaround buffer size used in tests on macOS is decreased to avoid
- intermittent failures. Patch by Fantix King.
-
-- gh-issue-95280: Fix problem with ``test_ssl`` ``test_get_ciphers`` on
- systems that require perfect forward secrecy (PFS) ciphers.
-
-- gh-issue-94675: Add a regression test for :mod:`re` exponentional slowdown
- when using rjsmin.
-
-Build
------
-
-- gh-issue-94801: Fix a regression in ``configure`` script that caused some
- header checks to ignore custom ``CPPFLAGS``. The regression was introduced
- in :gh:`94802`.
-
-- gh-issue-95145: wasm32-wasi builds no longer depend on WASIX's pthread
- stubs. Python now has its own stubbed pthread API.
-
-- gh-issue-95174: Python now detects missing ``dup`` function in WASI and
- works around some missing :mod:`errno`, :mod:`select`, and :mod:`socket`
- constants.
-
-- gh-issue-95174: Python now skips missing :mod:`socket` functions and
- methods on WASI. WASI can only create sockets from existing fd / accept
- and has no netdb.
-
-- gh-issue-95085: Platforms ``wasm32-unknown-emscripten`` and
- ``wasm32-unknown-wasi`` have been promoted to :pep:`11` tier 3 platform
- support.
-
-Windows
--------
-
-- gh-issue-95656: Enable the
- :meth:`~sqlite3.Connection.enable_load_extension` :mod:`sqlite3` API.
-
-- gh-issue-95587: Fixes some issues where the Windows installer would
- incorrectly detect certain features of an existing install when upgrading.
-
-- gh-issue-94399: Restores the behaviour of :ref:`launcher` for
- ``/usr/bin/env`` shebang lines, which will now search :envvar:`PATH` for
- an executable matching the given command. If none is found, the usual
- search process is used.
-
-- gh-issue-95445: Fixes the unsuccessful removal of the HTML document
- directory when uninstalling with Windows msi.
-
-- gh-issue-95359: Fix :ref:`launcher` handling of :file:`py.ini` commands
- (it was incorrectly expecting a ``py_`` prefix on keys) and crashes when
- reading per-user configuration file.
-
-- gh-issue-95285: Fix :ref:`launcher` handling of command lines where it is
- only passed a short executable name.
-
-IDLE
-----
-
-- gh-issue-65802: Document handling of extensions in Save As dialogs.
-
-- gh-issue-95191: Include prompts when saving Shell (interactive input and
- output).
-
-- gh-issue-95511: Fix the Shell context menu copy-with-prompts bug of
- copying an extra line when one selects whole lines.
-
-- gh-issue-95471: In the Edit menu, move ``Select All`` and add a new
- separator.
-
-- gh-issue-95411: Enable using IDLE's module browser with .pyw files.
-
-- gh-issue-89610: Add .pyi as a recognized extension for IDLE on macOS.
- This allows opening stub files by double clicking on them in the Finder.
-
-C API
------
-
-- gh-issue-92678: Restore the 3.10 behavior for multiple inheritance of C
- extension classes that store their dictionary at the end of the struct.
-
-- gh-issue-94936: Added :c:func:`PyCode_GetVarnames`,
- :c:func:`PyCode_GetCellvars` and :c:func:`PyCode_GetFreevars` for
- accessing ``co_varnames``, ``co_cellvars`` and ``co_freevars``
- respectively via the C API.
-
-
-What's New in Python 3.11.0 beta 5?
-===================================
-
-*Release date: 2022-07-25*
-
-Core and Builtins
------------------
-
-- gh-issue-93351: :class:`ast.AST` node positions are now validated when
- provided to :func:`compile` and other related functions. If invalid
- positions are detected, a :exc:`ValueError` will be raised.
-
-- gh-issue-94438: Fix an issue that caused extended opcode arguments and
- some conditional pops to be ignored when calculating valid jump targets
- for assignments to the ``f_lineno`` attribute of frame objects. In some
- cases, this could cause inconsistent internal state, resulting in a hard
- crash of the interpreter.
-
-- gh-issue-95060: Undocumented ``PyCode_Addr2Location`` function now
- properly returns when ``addrq`` argument is less than zero.
-
-- gh-issue-95113: Replace all ``EXTENDED_ARG_QUICK`` instructions with basic
- :opcode:`EXTENDED_ARG` instructions in unquickened code. Consumers of
- non-adaptive bytecode should be able to handle extended arguments the same
- way they were handled in CPython 3.10 and older.
-
-- gh-issue-91409: Fix incorrect source location info caused by certain
- optimizations in the bytecode compiler.
-
-- gh-issue-94036: Fix incorrect source location info for some multi-line
- attribute accesses and method calls.
-
-- gh-issue-94739: Allow jumping within, out of, and across exception
- handlers in the debugger.
-
-- gh-issue-94949: :func:`ast.parse` will no longer parse parenthesized
- context managers when passed ``feature_version`` less than ``(3, 9)``.
- Patch by Shantanu Jain.
-
-- gh-issue-94947: :func:`ast.parse` will no longer parse assignment
- expressions when passed ``feature_version`` less than ``(3, 8)``. Patch by
- Shantanu Jain.
-
-- gh-issue-91256: Ensures the program name is known for help text during
- interpreter startup.
-
-- gh-issue-94869: Fix the column offsets for some expressions in multi-line
- f-strings :mod:`ast` nodes. Patch by Pablo Galindo.
-
-- gh-issue-94822: Fix an issue where lookups of metaclass descriptors may be
- ignored when an identically-named attribute also exists on the class
- itself.
-
-- gh-issue-91153: Fix an issue where a :class:`bytearray` item assignment
- could crash if it's resized by the new value's :meth:`__index__` method.
-
-- gh-issue-90699: Fix reference counting bug in :meth:`bool.__repr__`. Patch
- by Kumar Aditya.
-
-Library
--------
-
-- gh-issue-95087: Fix IndexError in parsing invalid date in the :mod:`email`
- module.
-
-- gh-issue-95199: Upgrade bundled setuptools to 63.2.0.
-
-- gh-issue-95194: Upgrade bundled pip to 22.2.
-
-- gh-issue-95132: Fix a :mod:`sqlite3` regression where ``*args`` and
- ``**kwds`` were incorrectly relayed from :py:func:`~sqlite3.connect` to
- the :class:`~sqlite3.Connection` factory. The regression was introduced in
- 3.11a1 with PR 24421 (:gh:`85128`). Patch by Erlend E. Aasland.`
-
-- gh-issue-93157: Fix :mod:`fileinput` module didn't support ``errors``
- option when ``inplace`` is true.
-
-- gh-issue-95105: :meth:`wsgiref.types.InputStream.__iter__` should return
- ``Iterator[bytes]``, not ``Iterable[bytes]``. Patch by Shantanu Jain.
-
-- gh-issue-94857: Fix refleak in ``_io.TextIOWrapper.reconfigure``. Patch by
- Kumar Aditya.
-
-- gh-issue-94821: Fix binding of unix socket to empty address on Linux to
- use an available address from the abstract namespace, instead of "\0".
-
-- gh-issue-89988: Fix memory leak in :class:`pickle.Pickler` when looking up
- :attr:`dispatch_table`. Patch by Kumar Aditya.
-
-- bpo-47025: Drop support for :class:`bytes` on :attr:`sys.path`.
-
-Tests
------
-
-- gh-issue-95212: Make multiprocessing test case
- ``test_shared_memory_recreate`` parallel-safe.
-
-Build
------
-
-- gh-issue-94847: Fixed ``_decimal`` module build issue on GCC when
- compiling with LTO and pydebug. Debug builds no longer force inlining of
- functions.
-
-- gh-issue-94841: Fix the possible performance regression of
- :c:func:`PyObject_Free` compiled with MSVC version 1932.
-
-- gh-issue-94801: ``configure`` now uses custom flags like ``ZLIB_CFLAGS``
- and ``ZLIB_LIBS`` when searching for headers and libraries.
-
-- gh-issue-94773: ``deepfreeze.py`` now supports code object with frozensets
- that contain incompatible, unsortable types.
-
-Windows
--------
-
-- gh-issue-90844: Allow virtual environments to correctly launch when they
- have spaces in the path.
-
-- gh-issue-94772: Fix incorrect handling of shebang lines in py.exe launcher
-
-C API
------
-
-- gh-issue-92678: Adds unstable C-API functions
- ``_PyObject_VisitManagedDict`` and ``_PyObject_ClearManagedDict`` to allow
- C extensions to allow the VM to manage their object's dictionaries.
-
-- gh-issue-94930: Fix ``SystemError`` raised when
- :c:func:`PyArg_ParseTupleAndKeywords` is used with ``#`` in ``(...)`` but
- without ``PY_SSIZE_T_CLEAN`` defined.
-
-- gh-issue-94864: Fix ``PyArg_Parse*`` with deprecated format units "u" and
- "Z". It returned 1 (success) when warnings are turned into exceptions.
-
-- gh-issue-94731: Python again uses C-style casts for most casting
- operations when compiled with C++. This may trigger compiler warnings, if
- they are enabled with e.g. ``-Wold-style-cast `` or
- ``-Wzero-as-null-pointer-constant`` options for ``g++``.
-
-
-What's New in Python 3.11.0 beta 4?
-===================================
-
-*Release date: 2022-07-11*
-
-Security
---------
-
-- gh-issue-87389: :mod:`http.server`: Fix an open redirection vulnerability
- in the HTTP server when an URI path starts with ``//``. Vulnerability
- discovered, and initial fix proposed, by Hamza Avvan.
-
-- gh-issue-79096: LWPCookieJar and MozillaCookieJar create files with file
- mode 600 instead of 644 (Microsoft Windows is not affected)
-
-- gh-issue-92888: Fix ``memoryview`` use after free when accessing the
- backing buffer in certain cases.
-
-- gh-issue-68966: The deprecated mailcap module now refuses to inject unsafe
- text (filenames, MIME types, parameters) into shell commands. Instead of
- using such text, it will warn and act as if a match was not found (or for
- test commands, as if the test failed).
-
-Core and Builtins
------------------
-
-- gh-issue-94694: Fix an issue that could cause code with multi-line method
- lookups to have misleading or incorrect column offset information. In some
- cases (when compiling a hand-built AST) this could have resulted in a hard
- crash of the interpreter.
-
-- gh-issue-93252: Fix an issue that caused internal frames to outlive failed
- Python function calls, possibly resulting in memory leaks or hard
- interpreter crashes.
-
-- gh-issue-94215: Fix an issue where exceptions raised by line-tracing
- events would cause frames to be left in an invalid state, possibly
- resulting in a hard crash of the interpreter.
-
-- gh-issue-92228: Disable the compiler's inline-small-exit-blocks
- optimization for exit blocks that are associated with source code lines.
- This fixes a bug where the debugger cannot tell where an exception handler
- ends and the following code block begins.
-
-- gh-issue-94485: Line number of a module's ``RESUME`` instruction is set to
- 0 as specified in :pep:`626`.
-
-- gh-issue-94438: Account for instructions that can push NULL to the stack
- when setting line number in a frame. Prevents some (unlikely) crashes.
-
-- gh-issue-91719: Reload ``opcode`` when raising ``unknown opcode error`` in
- the interpreter main loop, for C compilers to generate dispatching code
- independently.
-
-- gh-issue-94329: Compile and run code with unpacking of extremely large
- sequences (1000s of elements). Such code failed to compile. It now
- compiles and runs correctly.
-
-- gh-issue-94360: Fixed a tokenizer crash when reading encoded files with
- syntax errors from ``stdin`` with non utf-8 encoded text. Patch by Pablo
- Galindo
-
-- gh-issue-88116: Fix an issue when reading line numbers from code objects
- if the encoded line numbers are close to ``INT_MIN``. Patch by Pablo
- Galindo
-
-- gh-issue-94262: Don't create frame objects for incomplete frames. Prevents
- the creation of generators and closures from being observable to Python
- and C extensions, restoring the behavior of 3.10 and earlier.
-
-- gh-issue-94192: Fix error for dictionary literals with invalid expression
- as value.
-
-- gh-issue-93883: Revise the display strategy of traceback enhanced error
- locations. The indicators are only shown when the location doesn't span
- the whole line.
-
-- gh-issue-94021: Fix unreachable code warning in ``Python/specialize.c``.
-
-- gh-issue-93516: Store offset of first traceable instruction in code object
- to avoid having to recompute it for each instruction when tracing.
-
-- gh-issue-93516: Lazily create a table mapping bytecode offsets to line
- numbers to speed up calculation of line numbers when tracing.
-
-- gh-issue-89828: :class:`types.GenericAlias` no longer relays the
- ``__class__`` attribute. For example, ``isinstance(list[int], type)`` no
- longer returns ``True``.
-
-- gh-issue-93671: Fix some exponential backtrace case happening with deeply
- nested sequence patterns in match statements. Patch by Pablo Galindo
-
-- gh-issue-93662: Make sure that the end column offsets are correct in
- multi-line method calls. Previously, the end column could precede the
- column offset.
-
-- gh-issue-93461: :func:`importlib.invalidate_caches` now drops entries from
- :data:`sys.path_importer_cache` with a relative path as name. This solves
- a caching issue when a process changes its current working directory.
-
- ``FileFinder`` no longer inserts a dot in the path, e.g. ``/egg/./spam``
- is now ``/egg/spam``.
-
-- gh-issue-93418: Fixed an assert where an f-string has an equal sign '='
- following an expression, but there's no trailing brace. For example,
- f"{i=".
-
-- gh-issue-93382: Cache the result of :c:func:`PyCode_GetCode` function to
- restore the O(1) lookup of the :attr:`~types.CodeType.co_code` attribute.
-
-- gh-issue-93354: Use exponential backoff for specialization counters in the
- interpreter. Can reduce the number of failed specializations significantly
- and avoid slowdown for those parts of a program that are not suitable for
- specialization.
-
-- gh-issue-93021: Fix the :attr:`__text_signature__` for :meth:`__get__`
- methods implemented in C. Patch by Jelle Zijlstra.
-
-- gh-issue-92930: Fixed a crash in ``_pickle.c`` from mutating collections
- during ``__reduce__`` or ``persistent_id``.
-
-- gh-issue-92914: Always round the allocated size for lists up to the
- nearest even number.
-
-- gh-issue-92858: Improve error message for some suites with syntax error
- before ':'
-
-- bpo-46142: Make ``--help`` output shorter by moving some info to the new
- ``--help-env`` and ``--help-xoptions`` command-line options. Also add
- ``--help-all`` option to print complete usage.
-
-Library
--------
-
-- gh-issue-94736: Fix crash when deallocating an instance of a subclass of
- ``_multiprocessing.SemLock``. Patch by Kumar Aditya.
-
-- gh-issue-94637: :meth:`SSLContext.set_default_verify_paths` now releases
- the GIL around ``SSL_CTX_set_default_verify_paths`` call. The function
- call performs I/O and CPU intensive work.
-
-- gh-issue-94607: Fix subclassing complex generics with type variables in
- :mod:`typing`. Previously an error message saying ``Some type variables
- ... are not listed in Generic[...]`` was shown. :mod:`typing` no longer
- populates ``__parameters__`` with the ``__parameters__`` of a Python
- class.
-
-- gh-issue-93910: The ability to access the other values of an enum on an
- enum (e.g. ``Color.RED.BLUE``) has been restored in order to fix a
- performance regression.
-
-- gh-issue-93896: Fix :func:`asyncio.run` and
- :class:`unittest.IsolatedAsyncioTestCase` to always the set event loop as
- it was done in Python 3.10 and earlier. Patch by Kumar Aditya.
-
-- gh-issue-94510: Re-entrant calls to :func:`sys.setprofile` and
- :func:`sys.settrace` now raise :exc:`RuntimeError`. Patch by Pablo
- Galindo.
-
-- gh-issue-92336: Fix bug where :meth:`linecache.getline` fails on bad files
- with :exc:`UnicodeDecodeError` or :exc:`SyntaxError`. It now returns an
- empty string as per the documentation.
-
-- gh-issue-94398: Once a :class:`asyncio.TaskGroup` has started shutting
- down (i.e., at least one task has failed and the task group has started
- cancelling the remaining tasks), it should not be possible to add new
- tasks to the task group.
-
-- gh-issue-94254: Fixed types of :mod:`struct` module to be immutable. Patch
- by Kumar Aditya.
-
-- gh-issue-94207: Made :class:`_struct.Struct` GC-tracked in order to fix a
- reference leak in the :mod:`_struct` module.
-
-- gh-issue-91742: Fix :mod:`pdb` crash after jump caused by a null pointer
- dereference. Patch by Kumar Aditya.
-
-- gh-issue-94101: Manual instantiation of :class:`ssl.SSLSession` objects is
- no longer allowed as it lead to misconfigured instances that crashed the
- interpreter when attributes where accessed on them.
-
-- gh-issue-84753: :func:`inspect.iscoroutinefunction`,
- :func:`inspect.isgeneratorfunction`, and
- :func:`inspect.isasyncgenfunction` now properly return ``True`` for
- duck-typed function-like objects like instances of
- :class:`unittest.mock.AsyncMock`.
-
- This makes :func:`inspect.iscoroutinefunction` consistent with the
- behavior of :func:`asyncio.iscoroutinefunction`. Patch by Mehdi ABAAKOUK.
-
-- gh-issue-94028: Fix a regression in the :mod:`sqlite3` where statement
- objects were not properly cleared and reset after use in cursor iters. The
- regression was introduced by PR 27884 in Python 3.11a1. Patch by Erlend E.
- Aasland.
-
-- gh-issue-93820: Pickle :class:`enum.Flag` by name.
-
-- gh-issue-93847: Fix repr of enum of generic aliases.
-
-- gh-issue-91404: Revert the :mod:`re` memory leak when a match is
- terminated by a signal or memory allocation failure as the implemented fix
- caused a major performance regression.
-
-- gh-issue-83499: Fix double closing of file description in :mod:`tempfile`.
-
-- gh-issue-93820: Fixed a regression when :func:`copy.copy`-ing
- :class:`enum.Flag` with multiple flag members.
-
-- gh-issue-79512: Fixed names and ``__module__`` value of :mod:`weakref`
- classes :class:`~weakref.ReferenceType`, :class:`~weakref.ProxyType`,
- :class:`~weakref.CallableProxyType`. It makes them pickleable.
-
-- gh-issue-91389: Fix an issue where :mod:`dis` utilities could report
- missing or incorrect position information in the presence of ``CACHE``
- entries.
-
-- gh-issue-93626: Set ``__future__.annotations`` to have a ``None``
- mandatoryRelease to indicate that it is currently 'TBD'.
-
-- gh-issue-90473: Emscripten and WASI have no home directory and cannot
- provide :pep:`370` user site directory.
-
-- gh-issue-90494: :func:`copy.copy` and :func:`copy.deepcopy` now always
- raise a TypeError if ``__reduce__()`` returns a tuple with length 6
- instead of silently ignore the 6th item or produce incorrect result.
-
-- gh-issue-90549: Fix a multiprocessing bug where a global named resource
- (such as a semaphore) could leak when a child process is spawned (as
- opposed to forked).
-
-- gh-issue-93521: Fixed a case where dataclasses would try to add
- ``__weakref__`` into the ``__slots__`` for a dataclass that specified
- ``weakref_slot=True`` when it was already defined in one of its bases.
- This resulted in a ``TypeError`` upon the new class being created.
-
-- gh-issue-79579: :mod:`sqlite3` now correctly detects DML queries with
- leading comments. Patch by Erlend E. Aasland.
-
-- gh-issue-93421: Update :data:`sqlite3.Cursor.rowcount` when a DML
- statement has run to completion. This fixes the row count for SQL queries
- like ``UPDATE ... RETURNING``. Patch by Erlend E. Aasland.
-
-- gh-issue-91162: Support splitting of unpacked arbitrary-length tuple over
- ``TypeVar`` and ``TypeVarTuple`` parameters. For example:
-
- * ``A[T, *Ts][*tuple[int, ...]]`` -> ``A[int, *tuple[int, ...]]``
- * ``A[*Ts, T][*tuple[int, ...]]`` -> ``A[*tuple[int, ...], int]``
-
-- gh-issue-93353: Fix the :func:`importlib.resources.as_file` context
- manager to remove the temporary file if destroyed late during Python
- finalization: keep a local reference to the :func:`os.remove` function.
- Patch by Victor Stinner.
-
-- gh-issue-83658: Make :class:`multiprocessing.Pool` raise an exception if
- ``maxtasksperchild`` is not ``None`` or a positive int.
-
-- gh-issue-93156: Accessing the :attr:`pathlib.PurePath.parents` sequence of
- an absolute path using negative index values produced incorrect results.
-
-- gh-issue-74696: :func:`shutil.make_archive` no longer temporarily changes
- the current working directory during creation of standard ``.zip`` or tar
- archives.
-
-- gh-issue-89973: Fix :exc:`re.error` raised in :mod:`fnmatch` if the
- pattern contains a character range with upper bound lower than lower bound
- (e.g. ``[c-a]``). Now such ranges are interpreted as empty ranges.
-
-- gh-issue-92932: Now :func:`~dis.dis` and :func:`~dis.get_instructions`
- handle operand values for instructions prefixed by ``EXTENDED_ARG_QUICK``.
- Patch by Sam Gross and Dong-hee Na.
-
-- gh-issue-91577: Move imports in :class:`~multiprocessing.SharedMemory`
- methods to module level so that they can be executed late in python
- finalization.
-
-- gh-issue-91456: Deprecate current default auto() behavior: In 3.13 the
- default will be for for auto() to always return the largest member value
- incremented by 1, and to raise if incompatible value types are used.
-
-- bpo-47231: Fixed an issue with inconsistent trailing slashes in tarfile
- longname directories.
-
-- bpo-46755: In :class:`QueueHandler`, clear ``stack_info`` from
- :class:`LogRecord` to prevent stack trace from being written twice.
-
-- bpo-46197: Fix :mod:`ensurepip` environment isolation for subprocess
- running ``pip``.
-
-- bpo-45924: Fix :mod:`asyncio` incorrect traceback when future's exception
- is raised multiple times. Patch by Kumar Aditya.
-
-- bpo-34828: :meth:`sqlite3.Connection.iterdump` now handles databases that
- use ``AUTOINCREMENT`` in one or more tables.
-
-Documentation
--------------
-
-- gh-issue-94321: Document the :pep:`246` style protocol type
- :class:`sqlite3.PrepareProtocol`.
-
-- gh-issue-61162: Clarify :mod:`sqlite3` behavior when
- :ref:`sqlite3-connection-context-manager`.
-
-- gh-issue-87260: Align :mod:`sqlite3` argument specs with the actual
- implementation.
-
-- gh-issue-86986: The minimum Sphinx version required to build the
- documentation is now 3.2.
-
-- gh-issue-88831: Augmented documentation of asyncio.create_task().
- Clarified the need to keep strong references to tasks and added a code
- snippet detailing how to to this.
-
-- bpo-47161: Document that :class:`pathlib.PurePath` does not collapse
- initial double slashes because they denote UNC paths.
-
-Tests
------
-
-- gh-issue-91330: Added more tests for :mod:`dataclasses` to cover behavior
- with data descriptor-based fields.
-
-- gh-issue-94208: ``test_ssl`` is now checking for supported TLS version and
- protocols in more tests.
-
-- gh-issue-94315: Tests now check for DAC override capability instead of
- relying on :func:`os.geteuid`.
-
-- gh-issue-93951: In test_bdb.StateTestCase.test_skip, avoid including
- auxiliary importers.
-
-- gh-issue-93957: Provide nicer error reporting from subprocesses in
- test_venv.EnsurePipTest.test_with_pip.
-
-- gh-issue-84461: ``run_tests.py`` now handles cross compiling env vars
- correctly and pass ``HOSTRUNNER`` to regression tests.
-
-- gh-issue-93616: ``test_modulefinder`` now creates a temporary directory in
- ``ModuleFinderTest.setUp()`` instead of module scope.
-
-- gh-issue-93575: Fix issue with test_unicode test_raiseMemError. The test
- case now use ``test.support.calcobjsize`` to calculate size of PyUnicode
- structs. :func:`sys.getsizeof` may return different size when string has
- UTF-8 memory.
-
-- gh-issue-90473: WASI does not have a ``chmod(2)`` syscall.
- :func:`os.chmod` is now a dummy function on WASI. Skip all tests that
- depend on working :func:`os.chmod`.
-
-- gh-issue-90473: Skip tests on WASI that require symlinks with absolute
- paths.
-
-- gh-issue-57539: Increase calendar test coverage for
- :meth:`calendar.LocaleTextCalendar.formatweekday`.
-
-- gh-issue-90473: Skip symlink tests on WASI. wasmtime uses ``openat2(2)``
- with ``RESOLVE_BENEATH`` flag, which prevents symlinks with absolute
- paths.
-
-- gh-issue-89858: Fix ``test_embed`` for out-of-tree builds. Patch by Kumar
- Aditya.
-
-- gh-issue-92886: Fixing tests that fail when running with optimizations
- (``-O``) in ``test_imaplib.py``.
-
-- gh-issue-92886: Fixing tests that fail when running with optimizations
- (``-O``) in ``test_zipimport.py``
-
-- bpo-47016: Create a GitHub Actions workflow for verifying bundled pip and
- setuptools. Patch by Illia Volochii and Adam Turner.
-
-Build
------
-
-- gh-issue-94404: ``makesetup`` now works around an issue with sed on macOS
- and uses correct CFLAGS for object files that end up in a shared
- extension. Module CFLAGS are used before PY_STDMODULE_CFLAGS to avoid
- clashes with system headers.
-
-- gh-issue-93584: Address race condition in ``Makefile`` when installing a
- PGO build. All ``test`` and ``install`` targets now depend on ``all``
- target.
-
-- gh-issue-93491: ``configure`` now detects and reports :pep:`11` support
- tiers.
-
-Windows
--------
-
-- gh-issue-93824: Drag and drop of files onto Python files in Windows
- Explorer has been enabled for Windows ARM64.
-
-- bpo-42658: Support native Windows case-insensitive path comparisons by
- using ``LCMapStringEx`` instead of :func:`str.lower` in
- :func:`ntpath.normcase`. Add ``LCMapStringEx`` to the :mod:`_winapi`
- module.
-
-Tools/Demos
------------
-
-- gh-issue-94538: Fix Argument Clinic output to custom file destinations.
- Patch by Erlend E. Aasland.
-
-- gh-issue-94430: Allow parameters named ``module`` and ``self`` with custom
- C names in Argument Clinic. Patch by Erlend E. Aasland
-
-C API
------
-
-- gh-issue-93937: The following frame functions and type are now directly
- available with ``#include <Python.h>``, it's no longer needed to add
- ``#include <frameobject.h>``:
-
- * :c:func:`PyFrame_Check`
- * :c:func:`PyFrame_GetBack`
- * :c:func:`PyFrame_GetBuiltins`
- * :c:func:`PyFrame_GetGenerator`
- * :c:func:`PyFrame_GetGlobals`
- * :c:func:`PyFrame_GetLasti`
- * :c:func:`PyFrame_GetLocals`
- * :c:type:`PyFrame_Type`
-
- Patch by Victor Stinner.
-
-- gh-issue-91321: Fix the compatibility of the Python C API with C++ older
- than C++11. Patch by Victor Stinner.
-
-- gh-issue-91731: Avoid defining the ``static_assert`` when compiling with
- C++ 11, where this is a keyword and redefining it can lead to undefined
- behavior. Patch by Pablo Galindo
-
-- gh-issue-93442: Add C++ overloads for _Py_CAST_impl() to handle 0/NULL.
- This will allow C++ extensions that pass 0 or NULL to macros using
- _Py_CAST() to continue to compile.
-
-
-What's New in Python 3.11.0 beta 3?
-===================================
-
-*Release date: 2022-06-01*
-
-Core and Builtins
------------------
-
-- gh-issue-93359: Ensure that custom :mod:`ast` nodes without explicit end
- positions can be compiled. Patch by Pablo Galindo.
-
-- gh-issue-93345: Fix a crash in substitution of a ``TypeVar`` in nested
- generic alias after ``TypeVarTuple``.
-
-Build
------
-
-- gh-issue-69093: Fix ``Modules/Setup.stdlib.in`` rule for ``_sqlite3``
- extension.
-
-
-What's New in Python 3.11.0 beta 2?
-===================================
-
-*Release date: 2022-05-30*
-
-Core and Builtins
------------------
-
-- gh-issue-84694: The ``--experimental-isolated-subinterpreters`` configure
- option and ``EXPERIMENTAL_ISOLATED_SUBINTERPRETERS`` macro have been
- removed.
-
-- gh-issue-91924: Fix ``__lltrace__`` debug feature if the stdout encoding
- is not UTF-8. Patch by Victor Stinner.
-
-- gh-issue-93061: Backward jumps after ``async for`` loops are no longer
- given dubious line numbers.
-
-- gh-issue-93065: Fix contextvars HAMT implementation to handle iteration
- over deep trees.
-
- The bug was discovered and fixed by Eli Libman. See
- `MagicStack/immutables#84
- <https://github.com/MagicStack/immutables/issues/84>`_ for more details.
-
-- gh-issue-90473: Decrease default recursion limit on WASI to address
- limited call stack size.
-
-- gh-issue-92804: Fix memory leak in ``memoryview`` iterator as it was not
- finalized at exit. Patch by Kumar Aditya.
-
-- gh-issue-92236: Remove spurious "LINE" event when starting a generator or
- coroutine, visible tracing functions implemented in C.
-
-- gh-issue-92619: Make the compiler duplicate an exit block only if none of
- its instructions have a lineno (previously only the first instruction in
- the block was checked, leading to unnecessarily duplicated blocks).
-
-- gh-issue-92261: Fix hang when trying to iterate over a ``typing.Union``.
-
-Library
--------
-
-- gh-issue-93297: Make asyncio task groups prevent child tasks from being
- GCed
-
-- gh-issue-90817: The :func:`locale.resetlocale` function is deprecated and
- will be removed in Python 3.13. Use ``locale.setlocale(locale.LC_ALL,
- "")`` instead. Patch by Victor Stinner.
-
-- gh-issue-92728: The :func:`re.template` function and the corresponding
- :const:`re.TEMPLATE` and :const:`re.T` flags are restored after they were
- removed in 3.11.0b1, but they are now deprecated, so they might be removed
- from Python 3.13.
-
-- gh-issue-93044: No longer convert the database argument of
- :func:`sqlite3.connect` to bytes before passing it to the factory.
-
-- gh-issue-93010: In a very special case, the email package tried to append
- the nonexistent ``InvalidHeaderError`` to the defect list. It should have
- been ``InvalidHeaderDefect``.
-
-- gh-issue-92675: Fix :func:`venv.ensure_directories` to accept
- :class:`pathlib.Path` arguments in addition to :class:`str` paths. Patch
- by David Foster.
-
-- gh-issue-87901: Removed the ``encoding`` argument from :func:`os.popen`
- that was added in 3.11b1.
-
-- gh-issue-91922: Fix function :func:`sqlite.connect` and the
- :class:`sqlite.Connection` constructor on non-UTF-8 locales. Also, they
- now support bytes paths non-decodable with the current FS encoding.
-
-- gh-issue-92839: Fixed crash resulting from calling bisect.insort() or
- bisect.insort_left() with the key argument not equal to None.
-
-- gh-issue-90473: :mod:`subprocess` now fails early on Emscripten and WASI
- platforms to work around missing :func:`os.pipe` on WASI.
-
-- gh-issue-92671: Fixed :func:`ast.unparse` for empty tuples in the
- assignment target context.
-
-- gh-issue-91581: :meth:`~datetime.datetime.utcfromtimestamp` no longer
- attempts to resolve ``fold`` in the pure Python implementation, since the
- fold is never 1 in UTC. In addition to being slightly faster in the common
- case, this also prevents some errors when the timestamp is close to
- :attr:`datetime.min <datetime.datetime.min>`. Patch by Paul Ganssle.
-
-- gh-issue-92550: Fix :meth:`pathlib.Path.rglob` for empty pattern.
-
-- gh-issue-92530: Fix an issue that occurred after interrupting
- :func:`threading.Condition.notify`.
-
-- gh-issue-92531: The statistics.median_grouped() function now always return
- a float. Formerly, it did not convert the input type when for sequences of
- length one.
-
-- gh-issue-91810: :class:`~xml.etree.ElementTree.ElementTree` method
- :meth:`~xml.etree.ElementTree.ElementTree.write` and function
- :func:`~xml.etree.ElementTree.tostring` now use the text file's encoding
- ("UTF-8" if not available) instead of locale encoding in XML declaration
- when ``encoding="unicode"`` is specified.
-
-- gh-issue-90622: Worker processes for
- :class:`concurrent.futures.ProcessPoolExecutor` are no longer spawned on
- demand (a feature added in 3.9) when the multiprocessing context start
- method is ``"fork"`` as that can lead to deadlocks in the child processes
- due to a fork happening while threads are running.
-
-- gh-issue-91581: Remove an unhandled error case in the C implementation of
- calls to :meth:`datetime.fromtimestamp <datetime.datetime.fromtimestamp>`
- with no time zone (i.e. getting a local time from an epoch timestamp).
- This should have no user-facing effect other than giving a possibly more
- accurate error message when called with timestamps that fall on
- 10000-01-01 in the local time. Patch by Paul Ganssle.
-
-- bpo-39064: :class:`zipfile.ZipFile` now raises :exc:`zipfile.BadZipFile`
- instead of ``ValueError`` when reading a corrupt zip file in which the
- central directory offset is negative.
-
-- bpo-45393: Fix the formatting for ``await x`` and ``not x`` in the
- operator precedence table when using the :func:`help` system.
-
-- bpo-28249: Set :attr:`doctest.DocTest.lineno` to ``None`` when object does
- not have :attr:`__doc__`.
-
-- bpo-45046: Add support of context managers in :mod:`unittest`: methods
- :meth:`~unittest.TestCase.enterContext` and
- :meth:`~unittest.TestCase.enterClassContext` of class
- :class:`~unittest.TestCase`, method
- :meth:`~unittest.IsolatedAsyncioTestCase.enterAsyncContext` of class
- :class:`~unittest.IsolatedAsyncioTestCase` and function
- :func:`unittest.enterModuleContext`.
-
-- bpo-42627: Fix incorrect parsing of Windows registry proxy settings
-
-Documentation
--------------
-
-- gh-issue-86438: Clarify that :option:`-W` and :envvar:`PYTHONWARNINGS` are
- matched literally and case-insensitively, rather than as regular
- expressions, in :mod:`warnings`.
-
-- gh-issue-92240: Added release dates for "What's New in Python 3.X" for
- 3.0, 3.1, 3.2, 3.8 and 3.10
-
-- bpo-40838: Document that :func:`inspect.getdoc`,
- :func:`inspect.getmodule`, and :func:`inspect.getsourcefile` might return
- ``None``.
-
-- bpo-38056: Overhaul the :ref:`error-handlers` documentation in
- :mod:`codecs`.
-
-- bpo-13553: Document tkinter.Tk args.
-
-Tests
------
-
-- gh-issue-92670: Skip
- ``test_shutil.TestCopy.test_copyfile_nonexistent_dir`` test on AIX as the
- test uses a trailing slash to force the OS consider the path as a
- directory, but on AIX the trailing slash has no effect and is considered
- as a file.
-
-Build
------
-
-- gh-issue-90473: Disable pymalloc and increase stack size on
- ``wasm32-wasi``.
-
-- bpo-34449: Drop invalid compiler switch ``-fPIC`` for HP aCC on HP-UX.
- Patch by Michael Osipov.
-
-Windows
--------
-
-- gh-issue-92817: Ensures that :file:`py.exe` will prefer an active virtual
- environment over default tags specified with environment variables or
- through a :file:`py.ini` file.
-
-- gh-issue-92984: Explicitly disable incremental linking for non-Debug
- builds
-
-- gh-issue-92841: :mod:`asyncio` no longer throws ``RuntimeError: Event loop
- is closed`` on interpreter exit after asynchronous socket activity. Patch
- by Oleg Iarygin.
-
-- bpo-46907: Update Windows installer to use SQLite 3.38.4.
-
-C API
------
-
-- gh-issue-92898: Fix C++ compiler warnings when casting function arguments
- to ``PyObject*``. Patch by Serge Guelton.
-
-- gh-issue-92913: Ensures changes to
- :c:member:`PyConfig.module_search_paths` are ignored unless
- :c:member:`PyConfig.module_search_paths_set` is set
-
-- gh-issue-92781: Avoid mixing declarations and code in the C API to fix the
- compiler warning: "ISO C90 forbids mixed declarations and code"
- [-Werror=declaration-after-statement]. Patch by Victor Stinner.
-
-
-What's New in Python 3.11.0 beta 1?
-===================================
-
-*Release date: 2022-05-06*
-
-Security
---------
-
-- gh-issue-57684: Add the :option:`-P` command line option and the
- :envvar:`PYTHONSAFEPATH` environment variable to not prepend a potentially
- unsafe path to :data:`sys.path`. Patch by Victor Stinner.
-
-Core and Builtins
------------------
-
-- gh-issue-89519: Chaining classmethod descriptors (introduced in bpo-19072)
- is deprecated. It can no longer be used to wrap other descriptors such as
- property(). The core design of this feature was flawed, and it caused a
- number of downstream problems.
-
-- gh-issue-92345: ``pymain_run_python()`` now imports ``readline`` and
- ``rlcompleter`` before sys.path is extended to include the current working
- directory of an interactive interpreter. Non-interactive interpreters are
- not affected.
-
-- bpo-43857: Improve the :exc:`AttributeError` message when deleting a
- missing attribute. Patch by Géry Ogam.
-
-- gh-issue-92245: Make sure that PEP 523 is respected in all cases. In
- 3.11a7, specialization may have prevented Python-to-Python calls
- respecting PEP 523.
-
-- gh-issue-92203: Add a closure keyword-only parameter to exec(). It can
- only be specified when exec-ing a code object that uses free variables.
- When specified, it must be a tuple, with exactly the number of cell
- variables referenced by the code object. closure has a default value of
- None, and it must be None if the code object doesn't refer to any free
- variables.
-
-- gh-issue-91173: Disable frozen modules in debug builds. Patch by Kumar
- Aditya.
-
-- gh-issue-92114: Improve error message when subscript a type with
- ``__class_getitem__`` set to ``None``.
-
-- gh-issue-92112: Fix crash triggered by an evil custom ``mro()`` on a
- metaclass.
-
-- gh-issue-92063: The ``PRECALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS``
- instruction now ensures methods are called only on objects of the correct
- type.
-
-- gh-issue-92031: Deoptimize statically allocated code objects during
- ``Py_FINALIZE()`` so that future ``_PyCode_Quicken`` calls always start
- with unquickened code.
-
-- gh-issue-92036: Fix a crash in subinterpreters related to the garbage
- collector. When a subinterpreter is deleted, untrack all objects tracked
- by its GC. To prevent a crash in deallocator functions expecting objects
- to be tracked by the GC, leak a strong reference to these objects on
- purpose, so they are never deleted and their deallocator functions are not
- called. Patch by Victor Stinner.
-
-- gh-issue-92032: The interpreter can now autocomplete soft keywords, as of
- now ``match``, ``case``, and ``_`` (wildcard pattern) from :pep:`634`.
-
-- gh-issue-87999: The warning emitted by the Python parser for a numeric
- literal immediately followed by keyword has been changed from deprecation
- warning to syntax warning.
-
-- gh-issue-91869: Fix an issue where specialized opcodes with extended
- arguments could produce incorrect tracing output or lead to assertion
- failures.
-
-- gh-issue-91603: Speed up :class:`types.UnionType` instantiation. Based on
- patch provided by Yurii Karabas.
-
-- gh-issue-89373: If Python is built in debug mode, Python now ensures that
- deallocator functions leave the current exception unchanged. Patch by
- Victor Stinner.
-
-- gh-issue-91632: Fix a minor memory leak at exit: release the memory of the
- :class:`generic_alias_iterator` type. Patch by Dong-hee Na.
-
-- gh-issue-81548: Octal escapes with value larger than ``0o377`` now produce
- a :exc:`DeprecationWarning`. In a future Python version they will be a
- :exc:`SyntaxWarning` and eventually a :exc:`SyntaxError`.
-
-- bpo-43950: Use a single compact table for line starts, ends and column
- offsets. Reduces memory consumption for location info by half
-
-- gh-issue-91102: Use Argument Clinic for :class:`EncodingMap`. Patch by
- Oleg Iarygin.
-
-- gh-issue-91636: Fixed a crash in a garbage-collection edge-case, in which
- a ``PyFunction_Type.tp_clear`` function could leave a python function
- object in an inconsistent state.
-
-- gh-issue-91603: Speed up :func:`isinstance` and :func:`issubclass` checks
- for :class:`types.UnionType`. Patch by Yurii Karabas.
-
-- gh-issue-91625: Fixed a bug in which adaptive opcodes ignored any
- preceding ``EXTENDED_ARG``\ s on specialization failure.
-
-- gh-issue-78607: The LLTRACE special build now looks for the name
- ``__lltrace__`` defined in module globals, rather than the name
- ``__ltrace__``, which had been introduced as a typo.
-
-- gh-issue-91576: Speed up iteration of ascii strings by 50%. Patch by Kumar
- Aditya.
-
-- gh-issue-89279: Improve interpreter performance on Windows by inlining a
- few specific macros.
-
-- gh-issue-91502: Add a new :c:func:`_PyFrame_IsEntryFrame` API function, to
- check if a :c:type:`PyFrameObject` is an entry frame. Patch by Pablo
- Galindo.
-
-- gh-issue-91266: Refactor the ``bytearray`` strip methods ``strip``,
- ``lstrip`` and ``rstrip`` to use a common implementation.
-
-- gh-issue-91479: Replaced the ``__note__`` field of :exc:`BaseException`
- (added in an earlier version of 3.11) with the final design of :pep:`678`.
- Namely, :exc:`BaseException` gets an :meth:`add_note` method, and its
- ``__notes__`` field is created when necessary.
-
-- gh-issue-46055: Speed up right shift of negative integers, by removing
- unnecessary creation of temporaries. Original patch by Xinhang Xu,
- reworked by Mark Dickinson.
-
-- gh-issue-91462: Make the interpreter's low-level tracing (lltrace) feature
- output more readable by displaying opcode names (rather than just
- numbers), and by displaying stack contents before each opcode.
-
-- gh-issue-89455: Fixed an uninitialized bool value in the traceback
- printing code path that was introduced by the initial bpo-45292 exception
- groups work.
-
-- gh-issue-91421: Fix a potential integer overflow in _Py_DecodeUTF8Ex.
-
-- gh-issue-91428: Add ``static const char *const _PyOpcode_OpName[256] =
- {...};`` to ``opcode.h`` for debug builds to assist in debugging the
- Python interpreter. It is now more convenient to make various forms of
- debugging output more human-readable by including opcode names rather than
- just the corresponding decimal digits.
-
-- bpo-47120: Make :opcode:`POP_JUMP_IF_TRUE`, :opcode:`POP_JUMP_IF_FALSE`,
- :opcode:`POP_JUMP_IF_NONE` and :opcode:`POP_JUMP_IF_NOT_NONE` virtual,
- mapping to new relative jump opcodes.
-
-- bpo-45317: Add internal documentation explaining design of new (for 3.11)
- frame stack.
-
-- bpo-47197: ctypes used to mishandle ``void`` return types, so that for
- instance a function declared like ``ctypes.CFUNCTYPE(None, ctypes.c_int)``
- would be called with signature ``int f(int)`` instead of ``void f(int)``.
- Wasm targets require function pointers to be called with the correct
- signatures so this led to crashes. The problem is now fixed.
-
-- bpo-47120: Make opcodes :opcode:`JUMP_IF_TRUE_OR_POP` and
- :opcode:`JUMP_IF_FALSE_OR_POP` relative rather than absolute.
-
-- bpo-47177: Replace the ``f_lasti`` member of the internal
- ``_PyInterpreterFrame`` structure with a ``prev_instr`` pointer, which
- reduces overhead in the main interpreter loop. The ``f_lasti`` attribute
- of Python-layer frame objects is preserved for backward-compatibility.
-
-- bpo-46961: Integer mod/remainder operations, including the three-argument
- form of :func:`pow`, now consistently return ints from the global small
- integer cache when applicable.
-
-- bpo-46962: Classes and functions that unconditionally declared their
- docstrings ignoring the `--without-doc-strings` compilation flag no longer
- do so.
-
- The classes affected are :class:`ctypes.UnionType`,
- :class:`pickle.PickleBuffer`, :class:`testcapi.RecursingInfinitelyError`,
- and :class:`types.GenericAlias`.
-
- The functions affected are 24 methods in :mod:`ctypes`.
-
- Patch by Oleg Iarygin.
-
-- bpo-46942: Use Argument Clinic for the :class:`types.MethodType`
- constructor. Patch by Oleg Iarygin.
-
-- bpo-46764: Fix wrapping bound methods with @classmethod
-
-- bpo-43464: Optimize :meth:`set.intersection` for non-set arguments.
-
-- bpo-46721: Optimize :meth:`set.issuperset` for non-set argument.
-
-- bpo-46509: Add type-specialized versions of the ``Py_DECREF()``, and use
- them for ``float``, ``int``, ``str``, ``bool``, and ``None`` to avoid
- pointer-chasing at runtime where types are known at C compile time.
-
-- bpo-46045: Do not use POSIX semaphores on NetBSD
-
-- bpo-36819: Fix crashes in built-in encoders with error handlers that
- return position less or equal than the starting position of non-encodable
- characters.
-
-- bpo-34093: ``marshal.dumps()`` uses ``FLAG_REF`` for all interned strings.
- This makes output more deterministic and helps reproducible build.
-
-- bpo-26579: Added ``object.__getstate__`` which provides the default
- implementation of the ``__getstate__()`` method.
-
- Copying and pickling instances of subclasses of builtin types bytearray,
- set, frozenset, collections.OrderedDict, collections.deque,
- weakref.WeakSet, and datetime.tzinfo now copies and pickles instance
- attributes implemented as slots.
-
-Library
--------
-
-- gh-issue-87901: Add the *encoding* parameter to :func:`os.popen`.
-
-- gh-issue-90997: Fix an issue where :mod:`dis` utilities may interpret
- populated inline cache entries as valid instructions.
-
-- gh-issue-92332: Deprecate :class:`typing.Text` (removal of the class is
- currently not planned). Patch by Alex Waygood.
-
-- Deprecate nested classes in enum definitions becoming members -- in 3.13
- they will be normal classes; add `member` and `nonmember` functions to
- allow control over results now.
-
-- gh-issue-92356: Fixed a performance regression in ctypes function calls.
-
-- gh-issue-90997: Show the actual named values stored in inline caches when
- ``show_caches=True`` is passed to :mod:`dis` utilities.
-
-- gh-issue-92301: Prefer ``close_range()`` to iterating over procfs for file
- descriptor closing in :mod:`subprocess` for better performance.
-
-- gh-issue-67248: Sort the miscellaneous topics in Cmd.do_help()
-
-- gh-issue-92210: Port ``socket.__init__`` to Argument Clinic. Patch by
- Cinder.
-
-- gh-issue-80010: Add support for generalized ISO 8601 parsing to
- :meth:`datetime.datetime.fromisoformat`,
- :meth:`datetime.date.fromisoformat` and
- :meth:`datetime.time.fromisoformat`. Patch by Paul Ganssle.
-
-- gh-issue-92118: Fix a 3.11 regression in
- :func:`~contextlib.contextmanager`, which caused it to propagate
- exceptions with incorrect tracebacks.
-
-- gh-issue-90887: Adding ``COPYFILE_STAT``, ``COPYFILE_ACL`` and
- ``COPYFILE_XATTR`` constants for :func:`os.fcopyfile` available in macOs.
-
-- gh-issue-91215: For @dataclass, add weakref_slot. Default is False. If
- True, and if slots=True, add a slot named "__weakref__", which will allow
- instances to be weakref'd. Contributed by Eric V. Smith
-
-- gh-issue-85984: New function os.login_tty() for Unix.
-
-- gh-issue-92128: Add :meth:`~object.__class_getitem__` to
- :class:`logging.LoggerAdapter` and :class:`logging.StreamHandler`,
- allowing them to be parameterized at runtime. Patch by Alex Waygood.
-
-- gh-issue-92049: Forbid pickling constants ``re._constants.SUCCESS`` etc.
- Previously, pickling did not fail, but the result could not be unpickled.
-
-- gh-issue-92062: :class:`inspect.Parameter` now raises :exc:`ValueError` if
- ``name`` is a keyword, in addition to the existing check that it is an
- identifier.
-
-- gh-issue-87390: Add an ``__unpacked__`` attribute to
- :class:`types.GenericAlias`. Patch by Jelle Zijlstra.
-
-- gh-issue-88089: Add support for generic :class:`typing.NamedTuple`.
-
-- gh-issue-91996: New http.HTTPMethod enum to represent all the available
- HTTP request methods in a convenient way
-
-- gh-issue-91984: Modified test strings in test_argparse.py to not contain
- trailing spaces before end of line.
-
-- gh-issue-91952: Add ``encoding="locale"`` support to
- :meth:`TextIOWrapper.reconfigure`.
-
-- gh-issue-91954: Add *encoding* and *errors* arguments to
- :func:`subprocess.getoutput` and :func:`subprocess.getstatusoutput`.
-
-- bpo-47029: Always close the read end of the pipe used by
- :class:`multiprocessing.Queue` *after* the last write of buffered data to
- the write end of the pipe to avoid :exc:`BrokenPipeError` at garbage
- collection and at :meth:`multiprocessing.Queue.close` calls. Patch by Géry
- Ogam.
-
-- gh-issue-91928: Add `datetime.UTC` alias for `datetime.timezone.utc`.
-
- Patch by Kabir Kwatra.
-
-- gh-issue-68966: The :mod:`mailcap` module is now deprecated and will be
- removed in Python 3.13. See :pep:`594` for the rationale and the
- :mod:`mimetypes` module for an alternative. Patch by Victor Stinner.
-
-- gh-issue-91401: Provide a way to disable :mod:`subprocess` use of
- ``vfork()`` just in case it is ever needed and document the existing
- mechanism for ``posix_spawn()``.
-
-- gh-issue-64783: Fix :data:`signal.NSIG` value on FreeBSD to accept signal
- numbers greater than 32, like :data:`signal.SIGRTMIN` and
- :data:`signal.SIGRTMAX`. Patch by Victor Stinner.
-
-- gh-issue-91910: Add missing f prefix to f-strings in error messages from
- the :mod:`multiprocessing` and :mod:`asyncio` modules.
-
-- gh-issue-91860: Add :func:`typing.dataclass_transform`, implementing
- :pep:`681`. Patch by Jelle Zijlstra.
-
-- gh-issue-91832: Add ``required`` attribute to :class:`argparse.Action`
- repr output.
-
-- gh-issue-91827: In the :mod:`tkinter` module add method
- ``info_patchlevel()`` which returns the exact version of the Tcl library
- as a named tuple similar to :data:`sys.version_info`.
-
-- gh-issue-84461: Add :option:`--enable-wasm-pthreads` to enable pthreads
- support for WASM builds. ``Emscripten/node`` no longer has threading
- enabled by default. Include additional file systems.
-
-- gh-issue-91821: Fix unstable ``test_from_tuple`` test in
- ``test_decimal.py``.
-
-- gh-issue-91217: Deprecate the xdrlib module.
-
-- gh-issue-91217: Deprecate the uu module.
-
-- gh-issue-91760: More strict rules will be applied for numerical group
- references and group names in regular expressions. For now, a deprecation
- warning is emitted for group references and group names which will be
- errors in future Python versions.
-
-- gh-issue-84461: Add provisional :data:`sys._emscripten_info` named tuple
- with build-time and run-time information about Emscripten platform.
-
-- gh-issue-90623: :func:`signal.raise_signal` and :func:`os.kill` now check
- immediately for pending signals. Patch by Victor Stinner.
-
-- gh-issue-91734: Fix OSS audio support on Solaris.
-
-- gh-issue-90633: Include the passed value in the exception thrown by
- :func:`typing.assert_never`. Patch by Jelle Zijlstra.
-
-- gh-issue-91700: Compilation of regular expression containing a conditional
- expression ``(?(group)...)`` now raises an appropriate :exc:`re.error` if
- the group number refers to not defined group. Previously an internal
- RuntimeError was raised.
-
-- gh-issue-91231: Add an optional keyword *shutdown_timeout* parameter to
- the :class:`multiprocessing.BaseManager` constructor. Kill the process if
- terminate() takes longer than the timeout. Patch by Victor Stinner.
-
-- gh-issue-91621: Fix :func:`typing.get_type_hints` for
- :class:`collections.abc.Callable`. Patch by Shantanu Jain.
-
-- gh-issue-90568: Parsing ``\N`` escapes of Unicode Named Character
- Sequences in a :mod:`regular expression <re>` raises now :exc:`re.error`
- instead of ``TypeError``.
-
-- gh-issue-91670: Remove deprecated ``SO`` config variable in
- :mod:`sysconfig`.
-
-- gh-issue-91217: Deprecate the telnetlib module.
-
-- gh-issue-91217: Deprecate the sunau module.
-
-- gh-issue-91217: Deprecate the spwd module.
-
-- gh-issue-91217: Deprecate the sndhdr module, as well as inline needed
- functionality for ``email.mime.MIMEAudio``.
-
-- gh-issue-91616: :mod:`re` module, fix :meth:`~re.Pattern.fullmatch`
- mismatch when using Atomic Grouping or Possessive Quantifiers.
-
-- gh-issue-91217: Deprecate the 'pipes' module.
-
-- gh-issue-91217: Deprecate the ossaudiodev module.
-
-- bpo-47256: :mod:`re` module, limit the maximum capturing group to
- 1,073,741,823 in 64-bit build, this increases the depth of backtracking.
-
-- gh-issue-91217: Deprecate the nis module.
-
-- gh-issue-91595: Fix the comparison of character and integer inside
- :func:`Tools.gdb.libpython.write_repr`. Patch by Yu Liu.
-
-- gh-issue-74166: Add option to raise all errors from
- :meth:`~socket.create_connection` in an :exc:`ExceptionGroup` when it
- fails to create a connection. The default remains to raise only the last
- error that had occurred when multiple addresses were tried.
-
-- gh-issue-91487: Optimize asyncio UDP speed, over 100 times faster when
- transferring a large file.
-
-- gh-issue-91575: Update case-insensitive matching in the :mod:`re` module
- to the latest Unicode version.
-
-- gh-issue-90622: In ``concurrent.futures.process.ProcessPoolExecutor``
- disallow the "fork" multiprocessing start method when the new
- ``max_tasks_per_child`` feature is used as the mix of threads+fork can
- hang the child processes. Default to using the safe "spawn" start method
- in that circumstance if no ``mp_context`` was supplied.
-
-- gh-issue-89022: In :mod:`sqlite3`, ``SQLITE_MISUSE`` result codes are now
- mapped to :exc:`~sqlite3.InterfaceError` instead of
- :exc:`~sqlite3.ProgrammingError`. Also, more accurate exceptions are
- raised when binding parameters fail. Patch by Erlend E. Aasland.
-
-- gh-issue-91526: Stop calling ``os.device_encoding(file.fileno())`` in
- :class:`TextIOWrapper`. It was complex, never documented, and didn't work
- for most cases. (Patch by Inada Naoki.)
-
-- gh-issue-88116: Change the frame-related functions in the :mod:`inspect`
- module to return a regular object (that is backwards compatible with the
- old tuple-like interface) that include the extended :pep:`657` position
- information (end line number, column and end column). The affected
- functions are: :func:`inspect.getframeinfo`,
- :func:`inspect.getouterframes`, :func:`inspect.getinnerframes`,
- :func:`inspect.stack` and :func:`inspect.trace`. Patch by Pablo Galindo.
-
-- gh-issue-69093: Add indexing and slicing support to :class:`sqlite3.Blob`.
- Patch by Aviv Palivoda and Erlend E. Aasland.
-
-- gh-issue-69093: Add :term:`context manager` support to
- :class:`sqlite3.Blob`. Patch by Aviv Palivoda and Erlend E. Aasland.
-
-- gh-issue-91217: Deprecate nntplib.
-
-- gh-issue-91217: Deprecate msilib.
-
-- gh-issue-91404: Improve the performance of :mod:`re` matching by using
- computed gotos (or "threaded code") on supported platforms and removing
- expensive pointer indirections.
-
-- gh-issue-91217: Deprecate the imghdr module.
-
-- gh-issue-91217: Deprecate the crypt module.
-
-- gh-issue-91276: Make space for longer opcodes in :mod:`dis` output.
-
-- bpo-47000: Make :class:`TextIOWrapper` uses locale encoding when
- ``encoding="locale"`` is specified even in UTF-8 mode.
-
-- gh-issue-91230: :func:`warnings.catch_warnings` now accepts arguments for
- :func:`warnings.simplefilter`, providing a more concise way to locally
- ignore warnings or convert them to errors.
-
-- gh-issue-91217: Deprecate the chunk module.
-
-- Add the ``TCP_CONNECTION_INFO`` option (available on macOS) to
- :mod:`socket`.
-
-- bpo-47260: Fix ``os.closerange()`` potentially being a no-op in a Linux
- seccomp sandbox.
-
-- bpo-47087: Implement ``typing.Required`` and ``typing.NotRequired``
- (:pep:`655`). Patch by David Foster and Jelle Zijlstra.
-
-- bpo-47061: Deprecate cgi and cgitb.
-
-- bpo-47061: Deprecate audioop.
-
-- bpo-47000: Add :func:`locale.getencoding` to get the current locale
- encoding. It is similar to ``locale.getpreferredencoding(False)`` but
- ignores the :ref:`Python UTF-8 Mode <utf8-mode>`.
-
-- bpo-42012: Add :mod:`wsgiref.types`, containing WSGI-specific types for
- static type checking.
-
-- bpo-47227: Suppress expression chaining for more :mod:`re` parsing errors.
-
-- bpo-47211: Remove undocumented and never working function
- ``re.template()`` and flag ``re.TEMPLATE``. This was later reverted in
- 3.11.0b2 and deprecated instead.
-
-- bpo-47135: :meth:`decimal.localcontext` now accepts context attributes via
- keyword arguments
-
-- bpo-43323: Fix errors in the :mod:`email` module if the charset itself
- contains undecodable/unencodable characters.
-
-- bpo-46841: Disassembly of quickened code.
-
-- bpo-46681: Forward gzip.compress() compresslevel to zlib.
-
-- bpo-45100: Add :func:`typing.get_overloads` and
- :func:`typing.clear_overloads`. Patch by Jelle Zijlstra.
-
-- bpo-44807: :class:`typing.Protocol` no longer silently replaces
- :meth:`__init__` methods defined on subclasses. Patch by Adrian Garcia
- Badaracco.
-
-- bpo-46787: Fix :class:`concurrent.futures.ProcessPoolExecutor` exception
- memory leak
-
-- bpo-46720: Add support for path-like objects to
- :func:`multiprocessing.set_executable` for Windows to be on a par with
- Unix-like systems. Patch by Géry Ogam.
-
-- bpo-46696: Add ``SO_INCOMING_CPU`` constant to :mod:`socket`.
-
-- bpo-46053: Fix OSS audio support on NetBSD.
-
-- bpo-45639: ``image/avif`` and ``image/webp`` were added to
- :mod:`mimetypes`.
-
-- bpo-46285: Add command-line option ``-p``/``--protocol`` to module
- :mod:`http.server` which specifies the HTTP version to which the server is
- conformant (HTTP/1.1 conformant servers can now be run from the
- command-line interface of module :mod:`http.server`). Patch by Géry Ogam.
-
-- bpo-44791: Accept ellipsis as the last argument of
- :data:`typing.Concatenate`.
-
-- bpo-46547: Remove variables leaking into ``pydoc.Helper`` class namespace.
-
-- bpo-46415: Fix ipaddress.ip_{address,interface,network} raising TypeError
- instead of ValueError if given invalid tuple as address parameter.
-
-- bpo-46075: ``CookieJar`` with ``DefaultCookiePolicy`` now can process
- cookies from localhost with domain=localhost explicitly specified in
- Set-Cookie header.
-
-- bpo-45995: Add a "z" option to the string formatting specification that
- coerces negative zero floating-point values to positive zero after
- rounding to the format precision. Contributed by John Belmonte.
-
-- bpo-26175: Fully implement the :class:`io.BufferedIOBase` or
- :class:`io.TextIOBase` interface for
- :class:`tempfile.SpooledTemporaryFile` objects. This lets them work
- correctly with higher-level layers (like compression modules). Patch by
- Carey Metcalfe.
-
-- bpo-45138: Fix a regression in the :mod:`sqlite3` trace callback where
- bound parameters were not expanded in the passed statement string. The
- regression was introduced in Python 3.10 by :issue:`40318`. Patch by
- Erlend E. Aasland.
-
-- bpo-44863: Allow :class:`~typing.TypedDict` subclasses to also include
- :class:`~typing.Generic` as a base class in class based syntax. Thereby
- allowing the user to define a generic ``TypedDict``, just like a
- user-defined generic but with ``TypedDict`` semantics.
-
-- bpo-44587: Fix BooleanOptionalAction to not automatically add a default
- string. If a default string is desired, use a formatter to add it.
-
-- bpo-43827: All positional-or-keyword parameters to ``ABCMeta.__new__`` are
- now positional-only to avoid conflicts with keyword arguments to be passed
- to :meth:`__init_subclass__`.
-
-- bpo-43218: Prevent creation of a venv whose path contains the PATH
- separator. This could affect the usage of the activate script. Patch by
- Dustin Rodrigues.
-
-- bpo-38435: Add a ``process_group`` parameter to :class:`subprocess.Popen`
- to help move more things off of the unsafe ``preexec_fn`` parameter.
-
-- bpo-42066: Fix cookies getting sorted in :func:`CookieJar.__iter__` which
- is an extra behavior and not mentioned in RFC 2965 or Netscape cookie
- protocol. Now the cookies in ``CookieJar`` follows the order of the
- ``Set-Cookie`` header. Patch by Iman Kermani.
-
-- bpo-40617: Add :meth:`~sqlite3.Connection.create_window_function` to
- :class:`sqlite3.Connection` for creating aggregate window functions. Patch
- by Erlend E. Aasland.
-
-- bpo-40676: Convert :mod:`csv` to use Argument Clinic for
- :func:`csv.field_size_limit`, :func:`csv.get_dialect`,
- :func:`csv.unregister_dialect` and :func:`csv.list_dialects`.
-
-- bpo-39716: Raise an ArgumentError when the same subparser name is added
- twice to an `argparse.ArgumentParser`. This is consistent with the
- (default) behavior when the same option string is added twice to an
- ArgumentParser.
-
-- bpo-36073: Raise :exc:`~sqlite3.ProgrammingError` instead of segfaulting
- on recursive usage of cursors in :mod:`sqlite3` converters. Patch by
- Sergey Fedoseev.
-
-- bpo-34975: Adds a ``start_tls()`` method to
- :class:`~asyncio.streams.StreamWriter`, which upgrades the connection with
- TLS using the given :class:`~ssl.SSLContext`.
-
-- bpo-22276: :class:`~pathlib.Path` methods :meth:`~pathlib.Path.glob` and
- :meth:`~pathlib.Path.rglob` return only directories if *pattern* ends with
- a pathname components separator (``/`` or :data:`~os.sep`). Patch by
- Eisuke Kawashima.
-
-- bpo-24905: Add :meth:`~sqlite3.Connection.blobopen` to
- :class:`sqlite3.Connection`. :class:`sqlite3.Blob` allows incremental I/O
- operations on blobs. Patch by Aviv Palivoda and Erlend E. Aasland.
-
-Documentation
--------------
-
-- gh-issue-91888: Add a new `gh` role to the documentation to link to GitHub
- issues.
-
-- gh-issue-91783: Document security issues concerning the use of the
- function :meth:`shutil.unpack_archive`
-
-- gh-issue-91547: Remove "Undocumented modules" page.
-
-- gh-issue-91298: In ``importlib.resources.abc``, refined the documentation
- of the Traversable Protocol, applying changes from importlib_resources
- 5.7.1.
-
-- bpo-44347: Clarify the meaning of *dirs_exist_ok*, a kwarg of
- :func:`shutil.copytree`.
-
-- bpo-36329: Remove 'make -C Doc serve' in favour of 'make -C Doc htmlview'
-
-- bpo-47189: Add a What's New in Python 3.11 entry for the Faster CPython
- project. Documentation by Ken Jin and Kumar Aditya.
-
-- bpo-38668: Update the introduction to documentation for :mod:`os.path` to
- remove warnings that became irrelevant after the implementations of
- :pep:`383` and :pep:`529`.
-
-- bpo-47115: The documentation now lists which members of C structs are part
- of the :ref:`Limited API/Stable ABI <stable>`.
-
-- bpo-46962: All docstrings in code snippets are now wrapped into
- :func:`PyDoc_STR` to follow the guideline of `PEP 7's Documentation
- Strings paragraph
- <https://www.python.org/dev/peps/pep-0007/#documentation-strings>`_. Patch
- by Oleg Iarygin.
-
-- bpo-26792: Improve the docstrings of :func:`runpy.run_module` and
- :func:`runpy.run_path`. Original patch by Andrew Brezovsky.
-
-Tests
------
-
-- gh-issue-92169: Use ``warnings_helper.import_deprecated()`` to import
- deprecated modules uniformly in tests. Patch by Hugo van Kemenade.
-
-- gh-issue-84461: When multiprocessing is enabled, libregrtest can now use a
- Python executable other than :code:`sys.executable` via the ``--python``
- flag.
-
-- gh-issue-91904: Fix initialization of
- :envvar:`PYTHONREGRTEST_UNICODE_GUARD` which prevented running regression
- tests on non-UTF-8 locale.
-
-- gh-issue-91752: Added @requires_zlib to
- test.test_tools.test_freeze.TestFreeze.
-
-- gh-issue-91607: Fix ``test_concurrent_futures`` to test the correct
- multiprocessing start method context in several cases where the test logic
- mixed this up.
-
-- bpo-40280: Threading tests are now skipped on WASM targets without pthread
- support.
-
-- bpo-47109: Test for :mod:`ctypes.macholib.dyld`,
- :mod:`ctypes.macholib.dylib`, and :mod:`ctypes.macholib.framework` are
- brought from manual pre-:mod:`unittest` times to :mod:`ctypes.test`
- location and structure. Patch by Oleg Iarygin.
-
-- bpo-29890: Add tests for :class:`ipaddress.IPv4Interface` and
- :class:`ipaddress.IPv6Interface` construction with tuple arguments.
- Original patch and tests by louisom.
-
-Build
------
-
-- gh-issue-89452: gdbm-compat is now preferred over ndbm if both are
- available on the system. This allows avoiding the problematic ndbm.h on
- macOS.
-
-- gh-issue-91731: Python is now built with ``-std=c11`` compiler option,
- rather than ``-std=c99``. Patch by Victor Stinner.
-
-- bpo-47152: Add script and make target for generating ``sre_constants.h``.
-
-- bpo-47103: Windows ``PGInstrument`` builds now copy a required DLL into
- the output directory, making it easier to run the profile stage of a PGO
- build.
-
-Windows
--------
-
-- bpo-46907: Update Windows installer to use SQLite 3.38.3.
-
-- bpo-47239: Fixed --list and --list-paths output for :ref:`launcher` when
- used in an active virtual environment.
-
-- bpo-46907: Update Windows installer to use SQLite 3.38.2.
-
-- bpo-46785: Fix race condition between :func:`os.stat` and unlinking a file
- on Windows, by using errors codes returned by ``FindFirstFileW()`` when
- appropriate in ``win32_xstat_impl``.
-
-- bpo-40859: Update Windows build to use xz-5.2.5
-
-macOS
------
-
-- bpo-46907: Update macOS installer to SQLite 3.38.4.
-
-Tools/Demos
------------
-
-- gh-issue-91583: Fix regression in the code generated by Argument Clinic
- for functions with the ``defining_class`` parameter.
-
-- gh-issue-91575: Add script ``Tools/scripts/generate_re_casefix.py`` and
- the make target ``regen-re`` for generating additional data for
- case-insensitive matching according to the current Unicode version.
-
-- gh-issue-91551: Remove the ancient Pynche color editor. It has moved to
- https://gitlab.com/warsaw/pynche
-
-C API
------
-
-- gh-issue-88279: Deprecate the C functions: :c:func:`PySys_SetArgv`,
- :c:func:`PySys_SetArgvEx`, :c:func:`PySys_SetPath`. Patch by Victor
- Stinner.
-
-- gh-issue-92154: Added the :c:func:`PyCode_GetCode` function. This function
- does the equivalent of the Python code ``getattr(code_object,
- 'co_code')``.
-
-- gh-issue-92173: Fix the ``closure`` argument to
- :c:func:`PyEval_EvalCodeEx`.
-
-- gh-issue-91320: Fix C++ compiler warnings about "old-style cast" (``g++
- -Wold-style-cast``) in the Python C API. Use C++ ``reinterpret_cast<>``
- and ``static_cast<>`` casts when the Python C API is used in C++. Patch by
- Victor Stinner.
-
-- gh-issue-80527: Mark functions as deprecated by :pep:`623`:
- :c:func:`PyUnicode_AS_DATA`, :c:func:`PyUnicode_AS_UNICODE`,
- :c:func:`PyUnicode_GET_DATA_SIZE`, :c:func:`PyUnicode_GET_SIZE`. Patch by
- Victor Stinner.
-
-- gh-issue-91768: :c:func:`Py_REFCNT`, :c:func:`Py_TYPE`, :c:func:`Py_SIZE`
- and :c:func:`Py_IS_TYPE` functions argument type is now ``PyObject*``,
- rather than ``const PyObject*``. Patch by Victor Stinner.
-
-- gh-issue-91020: Add ``PyBytes_Type.tp_alloc`` to initialize
- ``PyBytesObject.ob_shash`` for bytes subclasses.
-
-- bpo-40421: Add ``PyFrame_GetLasti`` C-API function to access frame
- object's ``f_lasti`` attribute safely from C code.
-
-- bpo-35134: Remove the ``Include/code.h`` header file. C extensions should
- only include the main ``<Python.h>`` header file. Patch by Victor Stinner.
-
-- bpo-47169: :c:func:`PyOS_CheckStack` is now exported in the Stable ABI on
- Windows.
-
-- bpo-47169: :c:func:`PyThread_get_thread_native_id` is excluded from the
- stable ABI on platforms where it doesn't exist (like Solaris).
-
-- bpo-46343: Added :c:func:`PyErr_GetHandledException` and
- :c:func:`PyErr_SetHandledException` as simpler alternatives to
- :c:func:`PyErr_GetExcInfo` and :c:func:`PyErr_SetExcInfo`.
-
- They are included in the stable ABI.
-
-
-What's New in Python 3.11.0 alpha 7?
-====================================
-
-*Release date: 2022-04-05*
-
-Core and Builtins
------------------
-
-- bpo-47212: Raise :exc:`IndentationError` instead of :exc:`SyntaxError` for
- a bare ``except`` with no following indent. Improve :exc:`SyntaxError`
- locations for an un-parenthesized generator used as arguments. Patch by
- Matthieu Dartiailh.
-
-- bpo-47186: Replace :opcode:`JUMP_IF_NOT_EG_MATCH` by
- :opcode:`CHECK_EG_MATCH` + jump.
-
-- bpo-47176: Emscripten builds cannot handle signals in the usual way due to
- platform limitations. Python can now handle signals. To use, set
- Module.Py_EmscriptenSignalBuffer to be a single byte SharedArrayBuffer and
- set Py_EMSCRIPTEN_SIGNAL_HANDLING to 1. Writing a number into the
- SharedArrayBuffer will cause the corresponding signal to be raised into
- the Python thread.
-
-- bpo-47186: Replace :opcode:`JUMP_IF_NOT_EXC_MATCH` by
- :opcode:`CHECK_EXC_MATCH` + jump.
-
-- bpo-47120: Replace the absolute jump opcode :opcode:`JUMP_NO_INTERRUPT` by
- the relative :opcode:`JUMP_BACKWARD_NO_INTERRUPT`.
-
-- bpo-46841: Avoid unnecessary allocations when comparing code objects.
-
-- bpo-47182: Fix a crash when using a named unicode character like
- ``"\N{digit nine}"`` after the main interpreter has been initialized a
- second time.
-
-- bpo-47162: WebAssembly cannot deal with bad function pointer casts
- (different count or types of arguments). Python can now use call
- trampolines to mitigate the problem. Define :c:macro:`PY_CALL_TRAMPOLINE`
- to enable call trampolines.
-
-- bpo-46775: Some Windows system error codes(>= 10000) are now mapped into
- the correct errno and may now raise a subclass of :exc:`OSError`. Patch by
- Dong-hee Na.
-
-- bpo-47129: Improve error messages in f-string syntax errors concerning
- empty expressions.
-
-- bpo-47117: Fix a crash if we fail to decode characters in interactive mode
- if the tokenizer buffers are uninitialized. Patch by Pablo Galindo.
-
-- bpo-47127: Speed up calls to c functions with keyword arguments by 25%
- with specialization. Patch by Kumar Aditya.
-
-- bpo-47120: Replaced :opcode:`JUMP_ABSOLUTE` by the relative jump
- :opcode:`JUMP_BACKWARD`.
-
-- bpo-42197: :c:func:`PyFrame_FastToLocalsWithError` and
- :c:func:`PyFrame_LocalsToFast` are no longer called during profiling nor
- tracing. C code can access the ``f_locals`` attribute of
- :c:type:`PyFrameObject` by calling :c:func:`PyFrame_GetLocals`.
-
-- bpo-47070: Improve performance of ``array_inplace_repeat`` by reducing the
- number of invocations of ``memcpy``. Refactor the ``repeat`` and inplace
- ``repeat`` methods of ``array``, ``bytes``, ``bytearray`` and
- ``unicodeobject`` to use the common ``_PyBytes_Repeat``.
-
-- bpo-47053: Reduce de-optimization in the specialized
- ``BINARY_OP_INPLACE_ADD_UNICODE`` opcode.
-
-- bpo-47045: Remove the ``f_state`` field from the _PyInterpreterFrame
- struct. Add the ``owner`` field to the _PyInterpreterFrame struct to make
- ownership explicit to simplify clearing and deallocing frames and
- generators.
-
-- bpo-46968: Check for the existence of the "sys/auxv.h" header in
- :mod:`faulthandler` to avoid compilation problems in systems where this
- header doesn't exist. Patch by Pablo Galindo
-
-- bpo-46329: Use low bit of ``LOAD_GLOBAL`` to indicate whether to push a
- ``NULL`` before the global. Helps streamline the call sequence a bit.
-
-- bpo-46841: Quicken bytecode in-place by storing it as part of the
- corresponding ``PyCodeObject``.
-
-- bpo-47012: Speed up iteration of :class:`bytes` and :class:`bytearray` by
- 30%. Patch by Kumar Aditya.
-
-- bpo-47009: Improved the performance of :meth:`list.append()` and list
- comprehensions by optimizing for the common case, where no resize is
- needed. Patch by Dennis Sweeney.
-
-- bpo-47005: Improve performance of ``bytearray_repeat`` and
- ``bytearray_irepeat`` by reducing the number of invocations of ``memcpy``.
-
-- bpo-46829: Deprecate passing a message into :meth:`asyncio.Future.cancel`
- and :meth:`asyncio.Task.cancel`
-
-- bpo-46993: Speed up :class:`bytearray` creation from :class:`list` and
- :class:`tuple` by 40%. Patch by Kumar Aditya.
-
-- bpo-39829: Removed the ``__len__()`` call when initializing a list and
- moved initializing to ``list_extend``. Patch by Jeremiah Pascual.
-
-- bpo-46944: Speed up throwing exception in generator with
- :const:`METH_FASTCALL` calling convention. Patch by Kumar Aditya.
-
-- bpo-46841: Modify :opcode:`STORE_SUBSCR` to use an inline cache entry
- (rather than its oparg) as an adaptive counter.
-
-- bpo-46841: Use inline caching for :opcode:`PRECALL` and :opcode:`CALL`,
- and remove the internal machinery for managing the (now unused) non-inline
- caches.
-
-- bpo-46881: Statically allocate and initialize the latin1 characters.
-
-- bpo-46838: Improve syntax errors for incorrect function definitions. Patch
- by Pablo Galindo
-
-- bpo-43721: Fix docstrings of :attr:`~property.getter`,
- :attr:`~property.setter`, and :attr:`~property.deleter` to clarify that
- they create a new copy of the property.
-
-- bpo-43224: Make grammar changes required for PEP 646.
-
-Library
--------
-
-- bpo-47208: Allow vendors to override :const:`CTYPES_MAX_ARGCOUNT`.
-
-- bpo-23689: :mod:`re` module: fix memory leak when a match is terminated by
- a signal or memory allocation failure. Patch by Ma Lin.
-
-- bpo-47167: Allow overriding a future compliance check in
- :class:`asyncio.Task`.
-
-- bpo-47151: When subprocess tries to use vfork, it now falls back to fork
- if vfork returns an error. This allows use in situations where vfork isn't
- allowed by the OS kernel.
-
-- bpo-47152: Convert the :mod:`re` module into a package. Deprecate modules
- ``sre_compile``, ``sre_constants`` and ``sre_parse``.
-
-- bpo-4833: Add :meth:`ZipFile.mkdir`
-
-- bpo-27929: Fix :meth:`asyncio.loop.sock_connect` to only resolve names for
- :const:`socket.AF_INET` or :const:`socket.AF_INET6` families. Resolution
- may not make sense for other families, like :const:`socket.AF_BLUETOOTH`
- and :const:`socket.AF_UNIX`.
-
-- bpo-14265: Adds the fully qualified test name to unittest output
-
-- bpo-47061: Deprecate the aifc module.
-
-- bpo-39622: Handle Ctrl+C in asyncio programs to interrupt the main task.
-
-- bpo-47101: :const:`hashlib.algorithms_available` now lists only algorithms
- that are provided by activated crypto providers on OpenSSL 3.0. Legacy
- algorithms are not listed unless the legacy provider has been loaded into
- the default OSSL context.
-
-- bpo-47099: All :exc:`URLError` exception messages raised in
- :class:`urllib.request.URLopener` now contain a colon between ``ftp
- error`` and the rest of the message. Previously,
- :func:`~urllib.request.URLopener.open_ftp` missed the colon. Patch by Oleg
- Iarygin.
-
-- bpo-47099: Exception chaining is changed from
- :func:`Exception.with_traceback`/:func:`sys.exc_info` to :pep:`3134`.
- Patch by Oleg Iarygin.
-
-- bpo-47095: :mod:`hashlib`'s internal ``_blake2`` module now prefers
- ``libb2`` from https://www.blake2.net/ over Python's vendored copy of
- blake2.
-
-- bpo-47098: The Keccak Code Package for :mod:`hashlib`'s internal ``_sha3``
- module has been replaced with tiny_sha3. The module is used as fallback
- when Python is built without OpenSSL.
-
-- bpo-47088: Implement :data:`typing.LiteralString`, part of :pep:`675`.
- Patch by Jelle Zijlstra.
-
-- bpo-42885: Optimize :func:`re.search`, :func:`re.split`,
- :func:`re.findall`, :func:`re.finditer` and :func:`re.sub` for regular
- expressions starting with ``\A`` or ``^``.
-
-- bpo-23691: Protect the :func:`re.finditer` iterator from re-entering.
-
-- bpo-47067: Optimize calling ``GenericAlias`` objects by using :pep:`590`
- ``vectorcall`` and by replacing ``PyObject_SetAttrString`` with
- ``PyObject_SetAttr``.
-
-- bpo-28080: Add the *metadata_encoding* parameter in the
- :class:`zipfile.ZipFile` constructor and the ``--metadata-encoding``
- option in the :mod:`zipfile` CLI to allow reading zipfiles using
- non-standard codecs to encode the filenames within the archive.
-
-- bpo-47000: Make :func:`io.text_encoding` returns "utf-8" when UTF-8 mode
- is enabled.
-
-- bpo-42369: Fix thread safety of :meth:`zipfile._SharedFile.tell` to avoid
- a "zipfile.BadZipFile: Bad CRC-32 for file" exception when reading a
- :class:`ZipFile` from multiple threads.
-
-- bpo-38256: Fix :func:`binascii.crc32` when it is compiled to use zlib'c
- crc32 to work properly on inputs 4+GiB in length instead of returning the
- wrong result. The workaround prior to this was to always feed the function
- data in increments smaller than 4GiB or to just call the zlib module
- function.
-
- We also have :func:`binascii.crc32` release the GIL when computing on
- larger inputs as :func:`zlib.crc32` and :mod:`hashlib` do.
-
- This also boosts performance on Windows as it now uses the zlib crc32
- implementation for :func:`binascii.crc32` for a 2-3x speedup.
-
- That the stdlib has a crc32 API in two modules is a known historical
- oddity. This moves us closer to a single implementation behind them.
-
-- bpo-47066: Global inline flags (e.g. ``(?i)``) can now only be used at the
- start of the regular expressions. Using them not at the start of
- expression was deprecated since Python 3.6.
-
-- bpo-39394: A warning about inline flags not at the start of the regular
- expression now contains the position of the flag.
-
-- bpo-433030: Add support of atomic grouping (``(?>...)``) and possessive
- quantifiers (``*+``, ``++``, ``?+``, ``{m,n}+``) in :mod:`regular
- expressions <re>`.
-
-- bpo-47062: Implement :class:`asyncio.Runner` context manager.
-
-- bpo-46382: :func:`~dataclasses.dataclass` ``slots=True`` now correctly
- omits slots already defined in base classes. Patch by Arie Bovenberg.
-
-- bpo-47057: Use FASTCALL convention for ``FutureIter.throw()``
-
-- bpo-47061: Deprecate the various modules listed by :pep:`594`:
-
- aifc, asynchat, asyncore, audioop, cgi, cgitb, chunk, crypt, imghdr,
- msilib, nntplib, nis, ossaudiodev, pipes, smtpd, sndhdr, spwd, sunau,
- telnetlib, uu, xdrlib
-
-- bpo-34790: Remove passing coroutine objects to :func:`asyncio.wait`.
-
-- bpo-47039: Normalize ``repr()`` of asyncio future and task objects.
-
-- bpo-2604: Fix bug where doctests using globals would fail when run
- multiple times.
-
-- bpo-45150: Add :func:`hashlib.file_digest` helper for efficient hashing of
- file object.
-
-- bpo-34861: Made cumtime the default sorting key for cProfile
-
-- bpo-45997: Fix :class:`asyncio.Semaphore` re-aquiring FIFO order.
-
-- bpo-47022: The :mod:`asynchat`, :mod:`asyncore` and :mod:`smtpd` modules
- have been deprecated since at least Python 3.6. Their documentation and
- deprecation warnings and have now been updated to note they will removed
- in Python 3.12 (:pep:`594`).
-
-- bpo-43253: Fix a crash when closing transports where the underlying socket
- handle is already invalid on the Proactor event loop.
-
-- bpo-40280: :func:`select.select` now passes ``NULL`` to ``select`` for
- each empty fdset.
-
-- bpo-47004: Apply bugfixes from importlib_metadata 4.11.3, including bugfix
- for EntryPoint.extras, which was returning match objects and not the
- extras strings.
-
-- bpo-46998: Allow subclassing of :class:`typing.Any`. Patch by Shantanu
- Jain.
-
-- bpo-46995: Deprecate missing :meth:`asyncio.Task.set_name` for third-party
- task implementations, schedule making it mandatory in Python 3.13.
-
-- bpo-46994: Accept explicit contextvars.Context in
- :func:`asyncio.create_task` and :meth:`asyncio.loop.create_task`.
-
-- bpo-46981: ``typing.get_args(typing.Tuple[()])`` now returns ``()``
- instead of ``((),)``.
-
-- bpo-46968: Add ``os.sysconf_names['SC_MINSIGSTKSZ']``.
-
-- bpo-46985: Upgrade pip wheel bundled with ensurepip (pip 22.0.4)
-
-- bpo-46968: :mod:`faulthandler`: On Linux 5.14 and newer, dynamically
- determine size of signal handler stack size CPython allocates using
- ``getauxval(AT_MINSIGSTKSZ)``. This changes allows for Python extension's
- request to Linux kernel to use AMX_TILE instruction set on Sapphire Rapids
- Xeon processor to succeed, unblocking use of the ISA in frameworks.
-
-- bpo-46917: The :data:`math.nan` value is now always available. Patch by
- Victor Stinner.
-
-- bpo-46955: Expose :class:`asyncio.base_events.Server` as
- :class:`asyncio.Server`. Patch by Stefan Zabka.
-
-- bpo-23325: The :mod:`signal` module no longer assumes that
- :const:`~signal.SIG_IGN` and :const:`~signal.SIG_DFL` are small int
- singletons.
-
-- bpo-46932: Update bundled libexpat to 2.4.7
-
-- bpo-46933: The :mod:`pwd` module is now optional.
- :func:`os.path.expanduser` returns the path when the :mod:`pwd` module is
- not available.
-
-- bpo-40059: :pep:`680`, the :mod:`tomllib` module. Adds support for parsing
- TOML.
-
-- bpo-464471: :func:`asyncio.timeout` and :func:`asyncio.timeout_at` context
- managers added. Patch by Tin Tvrtković and Andrew Svetlov.
-
-- bpo-46805: Added raw datagram socket functions for asyncio:
- :meth:`~asyncio.AbstractEventLoop.sock_sendto`,
- :meth:`~asyncio.AbstractEventLoop.sock_recvfrom` and
- :meth:`~asyncio.AbstractEventLoop.sock_recvfrom_into`.
-
-- bpo-46644: No longer require valid typeforms to be callable. This allows
- :data:`typing.Annotated` to wrap :data:`typing.ParamSpecArgs` and
- :data:`dataclasses.InitVar`. Patch by Gregory Beauregard.
-
-- bpo-46581: Brings :class:`ParamSpec` propagation for :class:`GenericAlias`
- in line with :class:`Concatenate` (and others).
-
-- bpo-45413: Define *posix_venv* and *nt_venv* :ref:`sysconfig installation
- schemes <installation_paths>` to be used for bootstrapping new virtual
- environments. Add *venv* sysconfig installation scheme to get the
- appropriate one of the above. The schemes are identical to the
- pre-existing *posix_prefix* and *nt* install schemes. The :mod:`venv`
- module now uses the *venv* scheme to create new virtual environments
- instead of hardcoding the paths depending only on the platform. Downstream
- Python distributors customizing the *posix_prefix* or *nt* install scheme
- in a way that is not compatible with the install scheme used in virtual
- environments are encouraged not to customize the *venv* schemes. When
- Python itself runs in a virtual environment,
- :func:`sysconfig.get_default_scheme` and
- :func:`sysconfig.get_preferred_scheme` with ``key="prefix"`` returns
- *venv*.
-
-- bpo-43224: Implement support for PEP 646 in typing.py.
-
-- bpo-43224: Allow unpacking types.GenericAlias objects, e.g. ``*tuple[int,
- str]``.
-
-- bpo-46557: Warnings captured by the logging module are now logged without
- a format string to prevent systems that group logs by the msg argument
- from grouping captured warnings together.
-
-- bpo-41370: :func:`typing.get_type_hints` now supports evaluating strings
- as forward references in :ref:`PEP 585 generic aliases
- <types-genericalias>`.
-
-- bpo-46607: Add :exc:`DeprecationWarning` to :class:`LegacyInterpolation`,
- deprecated in the docstring since Python 3.2. Will be removed in Python
- 3.13. Use :class:`BasicInterpolation` or :class:`ExtendedInterpolation`
- instead.
-
-- bpo-26120: :mod:`pydoc` now excludes __future__ imports from the module's
- data items.
-
-- bpo-46480: Add :func:`typing.assert_type`. Patch by Jelle Zijlstra.
-
-- bpo-46421: Fix a unittest issue where if the command was invoked as
- ``python -m unittest`` and the filename(s) began with a dot (.), a
- ``ValueError`` is returned.
-
-- bpo-46245: Add optional parameter *dir_fd* in :func:`shutil.rmtree`.
-
-- bpo-22859: :meth:`~unittest.TestProgram.usageExit` is marked deprecated,
- to be removed in 3.13.
-
-- bpo-46170: Improve the error message when you try to subclass an instance
- of :class:`typing.NewType`.
-
-- bpo-40296: Fix supporting generic aliases in :mod:`pydoc`.
-
-- bpo-20392: Fix inconsistency with uppercase file extensions in
- :meth:`MimeTypes.guess_type`. Patch by Kumar Aditya.
-
-- bpo-46030: Add ``LOCAL_CREDS``, ``LOCAL_CREDS_PERSISTENT`` and
- ``SCM_CREDS2`` FreeBSD constants to the socket module.
-
-- bpo-44439: Fix ``.write()`` method of a member file in ``ZipFile``, when
- the input data is an object that supports the buffer protocol, the file
- length may be wrong.
-
-- bpo-45171: Fix handling of the ``stacklevel`` argument to logging
- functions in the :mod:`logging` module so that it is consistent across all
- logging functions and, as advertised, similar to the ``stacklevel``
- argument used in :meth:`~warnings.warn`.
-
-- bpo-24959: Fix bug where :mod:`unittest` sometimes drops frames from
- tracebacks of exceptions raised in tests.
-
-- bpo-44859: Raise more accurate and :pep:`249` compatible exceptions in
- :mod:`sqlite3`.
-
- * Raise :exc:`~sqlite3.InterfaceError` instead of
- :exc:`~sqlite3.ProgrammingError` for ``SQLITE_MISUSE`` errors.
- * Don't overwrite :exc:`BufferError` with :exc:`ValueError` when conversion to
- BLOB fails.
- * Raise :exc:`~sqlite3.ProgrammingError` instead of :exc:`~sqlite3.Warning` if
- user tries to :meth:`~sqlite3.Cursor.execute()` more than one SQL statement.
- * Raise :exc:`~sqlite3.ProgrammingError` instead of :exc:`ValueError` if an SQL
- query contains null characters.
-
-- bpo-44493: Add missing terminated NUL in sockaddr_un's length
-
- This was potentially observable when using non-abstract AF_UNIX datagram
- sockets to processes written in another programming language.
-
-- bpo-41930: Add :meth:`~sqlite3.Connection.serialize` and
- :meth:`~sqlite3.Connection.deserialize` support to :mod:`sqlite3`. Patch
- by Erlend E. Aasland.
-
-- bpo-33178: Added :class:`ctypes.BigEndianUnion` and
- :class:`ctypes.LittleEndianUnion` classes, as originally documented in the
- library docs but not yet implemented.
-
-- bpo-43352: Add an Barrier object in synchronization primitives of
- *asyncio* Lib in order to be consistant with Barrier from *threading* and
- *multiprocessing* libs*
-
-- bpo-35859: :mod:`re` module, fix a few bugs about capturing group. In rare
- cases, capturing group gets an incorrect string. Patch by Ma Lin.
-
-Documentation
--------------
-
-- bpo-45099: Document internal :mod:`asyncio` API.
-
-- bpo-47126: Update PEP URLs to :pep:`676`'s new canonical form.
-
-- bpo-47040: Clarified the old Python versions compatiblity note of
- :func:`binascii.crc32` / :func:`zlib.adler32` / :func:`zlib.crc32`
- functions.
-
-- bpo-46033: Clarify ``for`` statement execution in its doc.
-
-- bpo-45790: Adjust inaccurate phrasing in
- :doc:`../extending/newtypes_tutorial` about the ``ob_base`` field and the
- macros used to access its contents.
-
-- bpo-42340: Document that in some circumstances :exc:`KeyboardInterrupt`
- may cause the code to enter an inconsistent state. Provided a sample
- workaround to avoid it if needed.
-
-- bpo-41233: Link the errnos referenced in ``Doc/library/exceptions.rst`` to
- their respective section in ``Doc/library/errno.rst``, and vice versa.
- Previously this was only done for EINTR and InterruptedError. Patch by Yan
- "yyyyyyyan" Orestes.
-
-Tests
------
-
-- bpo-47205: Skip test for :func:`~os.sched_getaffinity` and
- :func:`~os.sched_setaffinity` error case on FreeBSD.
-
-- bpo-46126: Restore 'descriptions' when running tests internally.
-
-- bpo-47104: Rewrite :func:`asyncio.to_thread` tests to use
- :class:`unittest.IsolatedAsyncioTestCase`.
-
-- bpo-40280: The test suite is now passing on the Emscripten platform. All
- fork, socket, and subprocess-based tests are skipped.
-
-- bpo-47037: Skip ``strftime("%4Y")`` feature test on Windows. It can cause
- an assertion error in debug builds.
-
-- bpo-46587: Skip tests if platform's ``strftime`` does not support
- non-portable glibc extensions.
-
-- bpo-47015: A test case for :func:`os.sendfile` is converted from
- deprecated :mod:`asyncore` (see :pep:`594`) to :mod:`asyncio`. Patch by
- Oleg Iarygin.
-
-Build
------
-
-- bpo-40280: Add configure option :option:`--enable-wasm-dynamic-linking` to
- enable ``dlopen`` and MAIN_MODULE / SIDE_MODULE on ``wasm32-emscripten``.
-
-- bpo-46023: ``makesetup`` now detects and skips all duplicated module
- definitions. The first entry wins.
-
-- bpo-40280: Add SOABI ``wasm32-emscripten`` for Emscripten and
- ``wasm32-wasi`` for WASI on 32bit WASM as well as ``wasm64`` counter
- parts.
-
-- bpo-47032: Ensure Windows install builds fail correctly with a non-zero
- exit code when part of the build fails.
-
-- bpo-47024: Update OpenSSL to 1.1.1n for macOS installers and all Windows
- builds.
-
-- bpo-46996: The :mod:`tkinter` package now requires Tcl/Tk version 8.5.12
- or newer.
-
-- bpo-46973: Add ``regen-configure`` make target to regenerate configure
- script with Christian's container image
- ``quay.io/tiran/cpython_autoconf:269``.
-
-- bpo-46917: Building Python now requires support of IEEE 754 floating point
- numbers. Patch by Victor Stinner.
-
-- bpo-45774: ``configure`` now verifies that all SQLite C APIs needed for
- the :mod:`sqlite3` extension module are found.
-
-Windows
--------
-
-- bpo-47194: Update ``zlib`` to v1.2.12 to resolve CVE-2018-25032.
-
-- bpo-47171: Enables installing the :file:`py.exe` launcher on Windows
- ARM64.
-
-- bpo-46566: Upgraded :ref:`launcher` to support a new ``-V:company/tag``
- argument for full :pep:`514` support and to detect ARM64 installs. The
- ``-64`` suffix on arguments is deprecated, but still selects any
- non-32-bit install. Setting :envvar:`PYLAUNCHER_ALLOW_INSTALL` and
- specifying a version that is not installed will attempt to install the
- requested version from the Microsoft Store.
-
-- bpo-47086: The installer for Windows now includes documentation as loose
- HTML files rather than a single compiled :file:`.chm` file.
-
-- bpo-46907: Update Windows installer to use SQLite 3.38.1.
-
-- bpo-44549: Update bzip2 to 1.0.8 in Windows builds to mitigate
- CVE-2016-3189 and CVE-2019-12900
-
-- bpo-46948: Prevent CVE-2022-26488 by ensuring the Add to PATH option in
- the Windows installer uses the correct path when being repaired.
-
-macOS
------
-
-- bpo-46890: Fix a regression in the setting of ``sys._base_executable`` in
- framework builds, and thereby fix a regression in :mod:`venv` virtual
- environments with such builds.
-
-- bpo-46907: Update macOS installer to SQLite 3.38.1.
-
-Tools/Demos
------------
-
-- bpo-40280: Replace Emscripten's limited shell with Katie Bell's browser-ui
- REPL from python-wasm project.
-
-C API
------
-
-- bpo-40421: Add ``PyFrame_GetBuiltins``, ``PyFrame_GetGenerator`` and
- ``PyFrame_GetGlobals`` C-API functions to access frame object attributes
- safely from C code.
-
-- bpo-46850: Move the private ``_PyFrameEvalFunction`` type, and private
- ``_PyInterpreterState_GetEvalFrameFunc()`` and
- ``_PyInterpreterState_SetEvalFrameFunc()`` functions to the internal C
- API. The ``_PyFrameEvalFunction`` callback function type now uses the
- ``_PyInterpreterFrame`` type which is part of the internal C API. Patch by
- Victor Stinner.
-
-- bpo-46850: Move the private undocumented ``_PyEval_EvalFrameDefault()``
- function to the internal C API. The function now uses the
- ``_PyInterpreterFrame`` type which is part of the internal C API. Patch by
- Victor Stinner.
-
-- bpo-46850: Remove the private undocumented function
- ``_PyEval_CallTracing()`` from the C API. Call the public
- :func:`sys.call_tracing` function instead. Patch by Victor Stinner.
-
-- bpo-46850: Remove the private undocumented function
- ``_PyEval_GetCoroutineOriginTrackingDepth()`` from the C API. Call the
- public :func:`sys.get_coroutine_origin_tracking_depth` function instead.
- Patch by Victor Stinner.
-
-- bpo-46850: Remove the following private undocumented functions from the C
- API:
-
- * ``_PyEval_GetAsyncGenFirstiter()``
- * ``_PyEval_GetAsyncGenFinalizer()``
- * ``_PyEval_SetAsyncGenFirstiter()``
- * ``_PyEval_SetAsyncGenFinalizer()``
-
- Call the public :func:`sys.get_asyncgen_hooks` and
- :func:`sys.set_asyncgen_hooks` functions instead. Patch by Victor Stinner.
-
-- bpo-46987: Remove private functions ``_PySys_GetObjectId()`` and
- ``_PySys_SetObjectId()``. Patch by Dong-hee Na.
-
-- bpo-46906: Add new functions to pack and unpack C double (serialize and
- deserialize): :c:func:`PyFloat_Pack2`, :c:func:`PyFloat_Pack4`,
- :c:func:`PyFloat_Pack8`, :c:func:`PyFloat_Unpack2`,
- :c:func:`PyFloat_Unpack4` and :c:func:`PyFloat_Unpack8`. Patch by Victor
- Stinner.
-
-
-What's New in Python 3.11.0 alpha 6?
-====================================
-
-*Release date: 2022-03-07*
-
-Core and Builtins
------------------
-
-- bpo-46940: Avoid overriding :exc:`AttributeError` metadata information for
- nested attribute access calls. Patch by Pablo Galindo.
-
-- bpo-46927: Include the type's name in the error message for subscripting
- non-generic types.
-
-- bpo-46921: Support vectorcall for ``super()``. Patch by Ken Jin.
-
-- bpo-46841: Fix incorrect handling of inline cache entries when
- specializing :opcode:`BINARY_OP`.
-
-- bpo-46841: Use an oparg to simplify the construction of helpful error
- messages in :opcode:`GET_AWAITABLE`.
-
-- bpo-46903: Make sure that str subclasses can be used as attribute names
- for instances with virtual dictionaries. Fixes regression in 3.11alpha
-
-- bpo-46841: Add more detailed specialization failure stats for
- :opcode:`COMPARE_OP` followed by :opcode:`EXTENDED_ARG`.
-
-- bpo-46891: Fix bug introduced during 3.11alpha where subclasses of
- ``types.ModuleType`` with ``__slots__`` were not initialized correctly,
- resulting in an interpreter crash.
-
-- bpo-46841: Use inline caching for :opcode:`LOAD_ATTR`,
- :opcode:`LOAD_METHOD`, and :opcode:`STORE_ATTR`.
-
-- bpo-46841: Use inline cache for :opcode:`BINARY_SUBSCR`.
-
-- bpo-46841: Use inline caching for :opcode:`COMPARE_OP`.
-
-- bpo-46864: Deprecate ``PyBytesObject.ob_shash``. It will be removed in
- Python 3.13.
-
-- bpo-46841: Use inline caching for :opcode:`UNPACK_SEQUENCE`.
-
-- bpo-46845: Reduces dict size by removing hash value from hash table when
- all inserted keys are Unicode. For example,
- ``sys.getsizeof(dict.fromkeys("abcdefg"))`` becomes 272 bytes from 352
- bytes on 64bit platform.
-
-- bpo-46841: Use inline cache for :opcode:`LOAD_GLOBAL`.
-
-- bpo-46852: Rename the private undocumented ``float.__set_format__()``
- method to ``float.__setformat__()`` to fix a typo introduced in Python
- 3.7. The method is only used by test_float. Patch by Victor Stinner.
-
-- bpo-46852: Remove the undocumented private ``float.__set_format__()``
- method, previously known as ``float.__setformat__()`` in Python 3.7. Its
- docstring said: "You probably don't want to use this function. It exists
- mainly to be used in Python's test suite." Patch by Victor Stinner.
-
-- bpo-40116: Fix regression that dict.update(other) may don't respect
- iterate order of other when other is key sharing dict.
-
-- bpo-46712: Share global string identifiers in deep-frozen modules.
-
-- bpo-46430: Fix memory leak in interned strings of deep-frozen modules.
-
-- bpo-46841: Store :opcode:`BINARY_OP` caches inline using a new
- :opcode:`CACHE` instruction.
-
-- bpo-45107: Specialize ``LOAD_METHOD`` for instances with a dict.
-
-- bpo-44337: Reduce the memory usage of specialized :opcode:`LOAD_ATTR` and
- :opcode:`STORE_ATTR` instructions.
-
-- bpo-46729: Add number of sub-exceptions to :meth:`BaseException.__str__`.
-
-- bpo-45885: Don't un-adapt :opcode:`COMPARE_OP` when collecting
- specialization stats.
-
-- bpo-46329: Fix specialization stats gathering for :opcode:`PRECALL`
- instructions.
-
-- bpo-46794: Bump up the libexpat version into 2.4.6
-
-- bpo-46823: Implement a specialized combined opcode
- ``LOAD_FAST__LOAD_ATTR_INSTANCE_VALUE``. Patch by Dennis Sweeney.
-
-- bpo-46820: Fix parsing a numeric literal immediately (without spaces)
- followed by "not in" keywords, like in ``1not in x``. Now the parser only
- emits a warning, not a syntax error.
-
-- bpo-46329: Move ``KW_NAMES`` before ``PRECALL`` instruction in call
- sequence. Change ``operand`` of ``CALL`` to match ``PRECALL`` for easier
- specialization.
-
-- bpo-46808: Remove the ``NEXT_BLOCK`` macro from compile.c, and make the
- compiler automatically generate implicit blocks when they are needed.
-
-- bpo-46329: Add ``PUSH_NULL`` instruction. This is used as a prefix when
- evaluating a callable, so that the stack has the same shape for methods
- and other calls. ``PRECALL_FUNCTION`` and ``PRECALL_METHOD`` are merged
- into a single ``PRECALL`` instruction.
-
- There is no change in semantics.
-
-- bpo-46762: Fix an assert failure in debug builds when a '<', '>', or '='
- is the last character in an f-string that's missing a closing right brace.
-
-- bpo-46730: Message of AttributeError caused by getting, setting or
- deleting a property without the corresponding function now mentions that
- the attribute is in fact a property and also specifies type of the class
- that it belongs to.
-
-- bpo-46724: Make sure that all backwards jumps use the ``JUMP_ABSOLUTE``
- instruction, rather than ``JUMP_FORWARD`` with an argument of
- ``(2**32)+offset``.
-
-- bpo-46732: Correct the docstring for the :meth:`__bool__` method. Patch by
- Jelle Zijlstra.
-
-- bpo-46072: Add more detailed specialization failure statistics for
- :opcode:`BINARY_OP`.
-
-- bpo-46707: Avoid potential exponential backtracking when producing some
- syntax errors involving lots of brackets. Patch by Pablo Galindo.
-
-- bpo-46323: :mod:`ctypes` now allocates memory on the stack instead of on
- the heap to pass arguments while calling a Python callback function. Patch
- by Dong-hee Na.
-
-- bpo-45923: Add a quickened form of :opcode:`RESUME` that skips quickening
- checks.
-
-- bpo-46702: Specialize :opcode:`UNPACK_SEQUENCE` for :class:`tuple` and
- :class:`list` unpackings.
-
-- bpo-46072: Opcode pair stats are now gathered with ``--enable-pystats``.
- Defining ``DYNAMIC_EXECUTION_PROFILE`` or ``DXPAIRS`` no longer has any
- effect.
-
-- bpo-46675: Allow more than 16 items in a split dict before it is combined.
- The limit is now 254.
-
-- bpo-40479: Add a missing call to ``va_end()`` in
- ``Modules/_hashopenssl.c``.
-
-- bpo-46323: Use :c:func:`PyObject_Vectorcall` while calling ctypes callback
- function. Patch by Dong-hee Na.
-
-- bpo-46615: When iterating over sets internally in ``setobject.c``, acquire
- strong references to the resulting items from the set. This prevents
- crashes in corner-cases of various set operations where the set gets
- mutated.
-
-- bpo-45828: The bytecode compiler now attempts to apply runtime stack
- manipulations at compile-time (whenever it is feasible to do so).
-
-- bpo-30496: Fixed a minor portability issue in the implementation of
- :c:func:`PyLong_FromLong`, and added a fast path for single-digit integers
- to :c:func:`PyLong_FromLongLong`.
-
-Library
--------
-
-- bpo-25707: Fixed a file leak in :func:`xml.etree.ElementTree.iterparse`
- when the iterator is not exhausted. Patch by Jacob Walls.
-
-- bpo-46877: Export :func:`unittest.doModuleCleanups` in :mod:`unittest`.
- Patch by Kumar Aditya.
-
-- bpo-46848: For performance, use the optimized string-searching
- implementations from :meth:`~bytes.find` and :meth:`~bytes.rfind` for
- :meth:`~mmap.find` and :meth:`~mmap.rfind`.
-
-- bpo-46736: :class:`~http.server.SimpleHTTPRequestHandler` now uses HTML5
- grammar. Patch by Dong-hee Na.
-
-- bpo-44886: Inherit asyncio proactor datagram transport from
- :class:`asyncio.DatagramTransport`.
-
-- bpo-46827: Support UDP sockets in :meth:`asyncio.loop.sock_connect` for
- selector-based event loops. Patch by Thomas Grainger.
-
-- bpo-46811: Make test suite support Expat >=2.4.5
-
-- bpo-46252: Raise :exc:`TypeError` if :class:`ssl.SSLSocket` is passed to
- transport-based APIs.
-
-- bpo-46784: Fix libexpat symbols collisions with user dynamically loaded or
- statically linked libexpat in embedded Python.
-
-- bpo-46786: The HTML serialisation in xml.etree.ElementTree now writes
- ``embed``, ``source``, ``track`` and ``wbr`` as empty tags, as defined in
- HTML 5.
-
-- bpo-39327: :func:`shutil.rmtree` can now work with VirtualBox shared
- folders when running from the guest operating-system.
-
-- bpo-45390: Propagate :exc:`asyncio.CancelledError` message from inner task
- to outer awaiter.
-
-- bpo-46756: Fix a bug in
- :meth:`urllib.request.HTTPPasswordMgr.find_user_password` and
- :meth:`urllib.request.HTTPPasswordMgrWithPriorAuth.is_authenticated` which
- allowed to bypass authorization. For example, access to URI
- ``example.org/foobar`` was allowed if the user was authorized for URI
- ``example.org/foo``.
-
-- bpo-46737: :func:`random.gauss` and :func:`random.normalvariate` now have
- default arguments.
-
-- bpo-46752: Add task groups to asyncio (structured concurrency, inspired by
- Trio's nurseries). This also introduces a change to task cancellation,
- where a cancelled task can't be cancelled again until it calls
- .uncancel().
-
-- bpo-46724: Fix :mod:`dis` behavior on negative jump offsets.
-
-- bpo-46333: The :meth:`__repr__` method of :class:`typing.ForwardRef` now
- includes the ``module`` parameter of :class:`typing.ForwardRef` when it is
- set.
-
-- bpo-46643: In :func:`typing.get_type_hints`, support evaluating
- stringified ``ParamSpecArgs`` and ``ParamSpecKwargs`` annotations. Patch
- by Gregory Beauregard.
-
-- bpo-45863: When the :mod:`tarfile` module creates a pax format archive, it
- will put an integer representation of timestamps in the ustar header (if
- possible) for the benefit of older unarchivers, in addition to the
- existing full-precision timestamps in the pax extended header.
-
-- bpo-46066: Deprecate kwargs-based syntax for :class:`typing.TypedDict`
- definitions. It had confusing semantics when specifying totality, and was
- largely unused. Patch by Jingchen Ye.
-
-- bpo-46676: Make :data:`typing.ParamSpec` args and kwargs equal to
- themselves. Patch by Gregory Beauregard.
-
-- bpo-46323: ``ctypes.CFUNCTYPE()`` and ``ctypes.WINFUNCTYPE()`` now fail to
- create the type if its ``_argtypes_`` member contains too many arguments.
- Previously, the error was only raised when calling a function. Patch by
- Victor Stinner.
-
-- bpo-46672: Fix ``NameError`` in :func:`asyncio.gather` when initial type
- check fails.
-
-- bpo-46659: The :class:`calendar.LocaleTextCalendar` and
- :class:`calendar.LocaleHTMLCalendar` classes now use
- :func:`locale.getlocale`, instead of using
- :func:`locale.getdefaultlocale`, if no locale is specified. Patch by
- Victor Stinner.
-
-- bpo-46659: The :func:`locale.getdefaultlocale` function is deprecated and
- will be removed in Python 3.13. Use :func:`locale.setlocale`,
- :func:`locale.getpreferredencoding(False) <locale.getpreferredencoding>`
- and :func:`locale.getlocale` functions instead. Patch by Victor Stinner.
-
-- bpo-46655: In :func:`typing.get_type_hints`, support evaluating bare
- stringified ``TypeAlias`` annotations. Patch by Gregory Beauregard.
-
-- bpo-45948: Fixed a discrepancy in the C implementation of the
- :mod:`xml.etree.ElementTree` module. Now, instantiating an
- :class:`xml.etree.ElementTree.XMLParser` with a ``target=None`` keyword
- provides a default :class:`xml.etree.ElementTree.TreeBuilder` target as
- the Python implementation does.
-
-- bpo-46626: Expose Linux's ``IP_BIND_ADDRESS_NO_PORT`` option in
- :mod:`socket`.
-
-- bpo-46521: Fix a bug in the :mod:`codeop` module that was incorrectly
- identifying invalid code involving string quotes as valid code.
-
-- bpo-46571: Improve :func:`typing.no_type_check`.
-
- Now it does not modify external classes and functions. We also now
- correctly mark classmethods as not to be type checked.
-
-- bpo-46400: expat: Update libexpat from 2.4.1 to 2.4.4
-
-- bpo-46556: Deprecate undocumented support for using a
- :class:`pathlib.Path` object as a context manager.
-
-- bpo-46534: Implement :pep:`673` :class:`typing.Self`. Patch by James
- Hilton-Balfe.
-
-- bpo-46522: Make various module ``__getattr__`` AttributeErrors more
- closely match a typical AttributeError
-
-- bpo-46475: Add :data:`typing.Never` and :func:`typing.assert_never`. Patch
- by Jelle Zijlstra.
-
-- bpo-46333: The :meth:`__eq__` and :meth:`__hash__` methods of
- :class:`typing.ForwardRef` now honor the ``module`` parameter of
- :class:`typing.ForwardRef`. Forward references from different modules are
- now differentiated.
-
-- bpo-46246: Add missing ``__slots__`` to
- ``importlib.metadata.DeprecatedList``. Patch by Arie Bovenberg.
-
-- bpo-46232: The :mod:`ssl` module now handles certificates with bit strings
- in DN correctly.
-
-- bpo-46195: :func:`typing.get_type_hints` no longer adds ``Optional`` to
- parameters with ``None`` as a default. This aligns to changes to PEP 484
- in https://github.com/python/peps/pull/689
-
-- bpo-31369: Add :class:`~re.RegexFlag` to ``re.__all__`` and documented it.
- Add :data:`~re.RegexFlag.NOFLAG` to indicate no flags being set.
-
-- bpo-45898: :mod:`ctypes` no longer defines ``ffi_type_*`` symbols in
- ``cfield.c``. The symbols have been provided by libffi for over a decade.
-
-- bpo-44953: Calling ``operator.itemgetter`` objects and
- ``operator.attrgetter`` objects is now faster due to use of the vectorcall
- calling convention.
-
-- bpo-44289: Fix an issue with :meth:`~tarfile.is_tarfile` method when using
- *fileobj* argument: position in the *fileobj* was advanced forward which
- made it unreadable with :meth:`tarfile.TarFile.open`.
-
-- bpo-44011: Reimplement SSL/TLS support in asyncio, borrow the
- implementation from uvloop library.
-
-- bpo-41086: Make the :class:`configparser.ConfigParser` constructor raise
- :exc:`TypeError` if the ``interpolation`` parameter is not of type
- :class:`configparser.Interpolation`
-
-- bpo-29418: Implement :func:`inspect.ismethodwrapper` and fix
- :func:`inspect.isroutine` for cases where methodwrapper is given. Patch by
- Hakan Çelik.
-
-- bpo-14156: argparse.FileType now supports an argument of '-' in binary
- mode, returning the .buffer attribute of sys.stdin/sys.stdout as
- appropriate. Modes including 'x' and 'a' are treated equivalently to 'w'
- when argument is '-'. Patch contributed by Josh Rosenberg
-
-Documentation
--------------
-
-- bpo-42238: ``Doc/tools/rstlint.py`` has moved to its own repository and is
- now packaged on PyPI as ``sphinx-lint``.
-
-Tests
------
-
-- bpo-46913: Fix test_faulthandler.test_sigfpe() if Python is built with
- undefined behavior sanitizer (UBSAN): disable UBSAN on the
- faulthandler_sigfpe() function. Patch by Victor Stinner.
-
-- bpo-46760: Remove bytecode offsets from expected values in test.test_dis
- module. Reduces the obstacles to modifying the VM or compiler.
-
-- bpo-46708: Prevent default asyncio event loop policy modification warning
- after ``test_asyncio`` execution.
-
-- bpo-46678: The function ``make_legacy_pyc`` in
- ``Lib/test/support/import_helper.py`` no longer fails when
- ``PYTHONPYCACHEPREFIX`` is set to a directory on a different device from
- where tempfiles are stored.
-
-- bpo-46623: Skip test_pair() and test_speech128() of test_zlib on s390x
- since they fail if zlib uses the s390x hardware accelerator. Patch by
- Victor Stinner.
-
-Build
------
-
-- bpo-46860: Respect `--with-suffix` when building on case-insensitive file
- systems.
-
-- bpo-46656: Building Python now requires a C11 compiler. Optional C11
- features are not required. Patch by Victor Stinner.
-
-- bpo-46656: Building Python now requires support for floating point
- Not-a-Number (NaN): remove the ``Py_NO_NAN`` macro. Patch by by Victor
- Stinner.
-
-- bpo-46640: Building Python now requires a C99 ``<math.h>`` header file
- providing a ``NAN`` constant, or the ``__builtin_nan()`` built-in
- function. Patch by Victor Stinner.
-
-- bpo-46608: Exclude marshalled-frozen data if deep-freezing to save 300 KB
- disk space. This includes adding a new ``is_package`` field to
- :c:struct:`_frozen`. Patch by Kumar Aditya.
-
-- bpo-40280: Fix wasm32-emscripten test failures and platform issues. -
- Disable syscalls that are not supported or don't work, e.g. wait,
- getrusage, prlimit, mkfifo, mknod, setres[gu]id, setgroups. - Use fd_count
- to cound open fds. - Add more checks for subprocess and fork. - Add
- workarounds for missing _multiprocessing and failing socket.accept(). -
- Enable bzip2. - Disable large file support. - Disable signal.alarm.
-
-- bpo-46430: Intern strings in deep-frozen modules. Patch by Kumar Aditya.
-
-Windows
--------
-
-- bpo-46744: The default all users install directory for ARM64 is now under
- the native ``Program Files`` folder, rather than ``Program Files (Arm)``
- which is intended for ARM (32-bit) files.
-
-- bpo-46567: Adds Tcl and Tk support for Windows ARM64. This also adds IDLE
- to the installation.
-
-- bpo-46638: Ensures registry virtualization is consistently disabled. For
- 3.10 and earlier, it remains enabled (some registry writes are protected),
- while for 3.11 and later it is disabled (registry modifications affect all
- applications).
-
-IDLE
-----
-
-- bpo-46630: Make query dialogs on Windows start with a cursor in the entry
- box.
-
-- bpo-45447: Apply IDLE syntax highlighting to `.pyi` files. Patch by Alex
- Waygood and Terry Jan Reedy.
-
-C API
------
-
-- bpo-46748: Python's public headers no longer import ``<stdbool.h>``,
- leaving code that embedd/extends Python free to define ``bool``, ``true``
- and ``false``.
-
-- bpo-46836: Move the :c:type:`PyFrameObject` type definition (``struct
- _frame``) to the internal C API ``pycore_frame.h`` header file. Patch by
- Victor Stinner.
-
-- bpo-45459: Rename ``Include/buffer.h`` header file to
- ``Include/pybuffer.h`` to avoid conflits with projects having an existing
- ``buffer.h`` header file. Patch by Victor Stinner.
-
-- bpo-45412: Remove the ``HAVE_PY_SET_53BIT_PRECISION`` macro (moved to the
- internal C API). Patch by Victor Stinner.
-
-- bpo-46613: Added function :c:func:`PyType_GetModuleByDef`, which allows
- accesss to module state when a method's defining class is not available.
-
-
-What's New in Python 3.11.0 alpha 5?
-====================================
-
-*Release date: 2022-02-03*
-
-Core and Builtins
------------------
-
-- bpo-45773: Remove two invalid "peephole" optimizations from the bytecode
- compiler.
-
-- bpo-46564: Do not create frame objects when creating :class:`super`
- object. Patch by Kumar Aditya.
-
-- bpo-45885: Added more fined-grained specialization failure stats regarding
- the ``COMPARE_OP`` bytecode.
-
-- bpo-44977: The delegation of :func:`int` to :meth:`__trunc__` is now
- deprecated. Calling ``int(a)`` when ``type(a)`` implements
- :meth:`__trunc__` but not :meth:`__int__` or :meth:`__index__` now raises
- a :exc:`DeprecationWarning`.
-
-- bpo-46458: Reorder code emitted by the compiler for a
- :keyword:`try`-:keyword:`except` block so that the :keyword:`else` block's
- code immediately follows the :keyword:`try` body (without a jump). This is
- more optimal for the happy path.
-
-- bpo-46527: Allow passing ``iterable`` as a keyword argument to
- :func:`enumerate` again. Patch by Jelle Zijlstra.
-
-- bpo-46528: Replace several stack manipulation instructions (``DUP_TOP``,
- ``DUP_TOP_TWO``, ``ROT_TWO``, ``ROT_THREE``, ``ROT_FOUR``, and ``ROT_N``)
- with new :opcode:`COPY` and :opcode:`SWAP` instructions.
-
-- bpo-46329: Use two or three bytecodes to implement most calls.
-
- Calls without named arguments are implemented as a sequence of two
- instructions: ``PRECALL; CALL``. Calls with named arguments are
- implemented as a sequence of three instructions: ``PRECALL; KW_NAMES;
- CALL``. There are two different ``PRECALL`` instructions:
- ``PRECALL_FUNTION`` and ``PRECALL_METHOD``. The latter pairs with
- ``LOAD_METHOD``.
-
- This partition into pre-call and call allows better specialization, and
- thus better performance ultimately.
-
- There is no change in semantics.
-
-- bpo-46503: Fix an assert when parsing some invalid \N escape sequences in
- f-strings.
-
-- bpo-46431: Improve error message on invalid calls to
- :meth:`BaseExceptionGroup.__new__`.
-
-- bpo-46476: Fix memory leak in code objects generated by deepfreeze. Patch
- by Kumar Aditya.
-
-- bpo-46481: Speed up calls to :meth:`weakref.ref.__call__` by using the
- :pep:`590` ``vectorcall`` calling convention. Patch by Dong-hee Na.
-
-- bpo-46417: Fix a race condition on setting a type ``__bases__`` attribute:
- the internal function ``add_subclass()`` now gets the
- ``PyTypeObject.tp_subclasses`` member after calling
- :c:func:`PyWeakref_NewRef` which can trigger a garbage collection which
- can indirectly modify ``PyTypeObject.tp_subclasses``. Patch by Victor
- Stinner.
-
-- bpo-46417: ``python -X showrefcount`` now shows the total reference count
- after clearing and destroyed the main Python interpreter. Previously, it
- was shown before. Patch by Victor Stinner.
-
-- bpo-43683: Add ASYNC_GEN_WRAP opcode to wrap the value to be yielded in
- async generators. Removes the need to special case async generators in the
- ``YIELD_VALUE`` instruction.
-
-- bpo-46407: Optimize some modulo operations in ``Objects/longobject.c``.
- Patch by Jeremiah Vivian.
-
-- bpo-46409: Add new ``RETURN_GENERATOR`` bytecode to make generators.
- Simplifies calling Python functions in the VM, as they no longer any need
- to special case generator functions.
-
- Also add ``JUMP_NO_INTERRUPT`` bytecode that acts like ``JUMP_ABSOLUTE``,
- but does not check for interrupts.
-
-- bpo-46406: The integer division ``//`` implementation has been optimized
- to better let the compiler understand its constraints. It can be 20%
- faster on the amd64 platform when dividing an int by a value smaller than
- ``2**30``.
-
-- bpo-46383: Fix invalid signature of ``_zoneinfo``'s ``module_free``
- function to resolve a crash on wasm32-emscripten platform.
-
-- bpo-46361: Ensure that "small" integers created by :meth:`int.from_bytes`
- and :class:`decimal.Decimal` are properly cached.
-
-- bpo-46161: Fix the class building error when the arguments are constants
- and CALL_FUNCTION_EX is used.
-
-- bpo-46028: Fixes calculation of :data:`sys._base_executable` when inside a
- virtual environment that uses symlinks with different binary names than
- the base environment provides.
-
-- bpo-46091: Correctly calculate indentation levels for lines with
- whitespace character that are ended by line continuation characters. Patch
- by Pablo Galindo
-
-- bpo-30512: Add CAN Socket support for NetBSD.
-
-- bpo-46045: Do not use POSIX semaphores on NetBSD
-
-- bpo-44024: Improve the exc:`TypeError` message for non-string second
- arguments passed to the built-in functions :func:`getattr` and
- :func:`hasattr`. Patch by Géry Ogam.
-
-Library
--------
-
-- bpo-46624: Restore support for non-integer arguments of
- :func:`random.randrange` and :func:`random.randint`.
-
-- bpo-46591: Make the IDLE doc URL on the About IDLE dialog clickable.
-
-- bpo-46565: Remove loop variables that are leaking into modules'
- namespaces.
-
-- bpo-46553: In :func:`typing.get_type_hints`, support evaluating bare
- stringified ``ClassVar`` annotations. Patch by Gregory Beauregard.
-
-- bpo-46544: Don't leak ``x`` & ``uspace`` intermediate vars in
- :class:`textwrap.TextWrapper`.
-
-- bpo-46487: Add the ``get_write_buffer_limits`` method to
- :class:`asyncio.transports.WriteTransport` and to the SSL transport.
-
-- bpo-45173: Note the configparser deprecations will be removed in Python
- 3.12.
-
-- bpo-45162: The deprecated :mod:`unittest` APIs removed in 3.11a1 have been
- temporarily restored to be removed in 3.12 while cleanups in external
- projects go in.
-
-- bpo-46539: In :func:`typing.get_type_hints`, support evaluating
- stringified ``ClassVar`` and ``Final`` annotations inside ``Annotated``.
- Patch by Gregory Beauregard.
-
-- bpo-46510: Add missing test for :class:`types.TracebackType` and
- :class:`types.FrameType`. Calculate them directly from the caught
- exception without calling :func:`sys.exc_info`.
-
-- bpo-46491: Allow :data:`typing.Annotated` to wrap :data:`typing.Final` and
- :data:`typing.ClassVar`. Patch by Gregory Beauregard.
-
-- bpo-46483: Remove :meth:`~object.__class_getitem__` from
- :class:`pathlib.PurePath` as this class was not supposed to be generic.
-
-- bpo-46436: Fix command-line option ``-d``/``--directory`` in module
- :mod:`http.server` which is ignored when combined with command-line option
- ``--cgi``. Patch by Géry Ogam.
-
-- bpo-41403: Make :meth:`mock.patch` raise a :exc:`TypeError` with a
- relevant error message on invalid arg. Previously it allowed a cryptic
- :exc:`AttributeError` to escape.
-
-- bpo-46474: In ``importlib.metadata.EntryPoint.pattern``, avoid potential
- REDoS by limiting ambiguity in consecutive whitespace.
-
-- bpo-46474: Removed private method from ``importlib.metadata.Path``. Sync
- with importlib_metadata 4.10.0.
-
-- bpo-46470: Remove unused branch from ``typing._remove_dups_flatten``
-
-- bpo-46469: :mod:`asyncio` generic classes now return
- :class:`types.GenericAlias` in ``__class_getitem__`` instead of the same
- class.
-
-- bpo-41906: Support passing filter instances in the ``filters`` values of
- ``handlers`` and ``loggers`` in the dictionary passed to
- :func:`logging.config.dictConfig`.
-
-- bpo-46422: Use ``dis.Positions`` in ``dis.Instruction`` instead of a
- regular ``tuple``.
-
-- bpo-46434: :mod:`pdb` now gracefully handles ``help`` when :attr:`__doc__`
- is missing, for example when run with pregenerated optimized ``.pyc``
- files.
-
-- bpo-43869: Python uses the same time Epoch on all platforms. Add an
- explicit unit test to ensure that it's the case. Patch by Victor Stinner.
-
-- bpo-46414: Add :func:`typing.reveal_type`. Patch by Jelle Zijlstra.
-
-- bpo-40280: :mod:`subprocess` now imports Windows-specific imports when
- ``msvcrt`` module is available, and POSIX-specific imports on all other
- platforms. This gives a clean exception when ``_posixsubprocess`` is not
- available (e.g. Emscripten browser target).
-
-- bpo-40066: ``IntEnum``, ``IntFlag``, and ``StrEnum`` use the mixed-in type
- for their ``str()`` and ``format()`` output.
-
-- bpo-46316: Optimize :meth:`pathlib.Path.iterdir` by removing an
- unnecessary check for special entries.
-
-- bpo-29688: Document :meth:`pathlib.Path.absolute` (which has always
- existed).
-
-- bpo-43012: The pathlib module's obsolete and internal ``_Accessor`` class
- has been removed to prepare the terrain for upcoming enhancements to the
- module.
-
-- bpo-46258: Speed up :func:`math.isqrt` for small positive integers by
- replacing two division steps with a lookup table.
-
-- bpo-46242: Improve error message when creating a new :class:`enum.Enum`
- type subclassing an existing ``Enum`` with ``_member_names_`` using
- :meth:`enum.Enum.__call__`.
-
-- bpo-43118: Fix a bug in :func:`inspect.signature` that was causing it to
- fail on some subclasses of classes with a ``__text_signature__``
- referencing module globals. Patch by Weipeng Hong.
-
-- bpo-26552: Fixed case where failing :func:`asyncio.ensure_future` did not
- close the coroutine. Patch by Kumar Aditya.
-
-- bpo-21987: Fix an issue with :meth:`tarfile.TarFile.getmember` getting a
- directory name with a trailing slash.
-
-- bpo-46124: Update :mod:`zoneinfo` to rely on importlib.resources
- traversable API.
-
-- bpo-46103: Now :func:`inspect.getmembers` only gets :attr:`__bases__`
- attribute from class type. Patch by Weipeng Hong.
-
-- bpo-46080: Fix exception in argparse help text generation if a
- :class:`argparse.BooleanOptionalAction` argument's default is
- ``argparse.SUPPRESS`` and it has ``help`` specified. Patch by Felix
- Fontein.
-
-- bpo-44791: Fix substitution of :class:`~typing.ParamSpec` in
- :data:`~typing.Concatenate` with different parameter expressions.
- Substitution with a list of types returns now a tuple of types.
- Substitution with ``Concatenate`` returns now a ``Concatenate`` with
- concatenated lists of arguments.
-
-Documentation
--------------
-
-- bpo-46463: Fixes :file:`escape4chm.py` script used when building the CHM
- documentation file
-
-Tests
------
-
-- bpo-43478: Mocks can no longer be provided as the specs for other Mocks.
- As a result, an already-mocked object cannot be passed to `mock.Mock()`.
- This can uncover bugs in tests since these Mock-derived Mocks will always
- pass certain tests (e.g. isinstance) and builtin assert functions (e.g.
- assert_called_once_with) will unconditionally pass.
-
-- bpo-46616: Ensures ``test_importlib.test_windows`` cleans up registry keys
- after completion.
-
-- bpo-44359: test_ftplib now silently ignores socket errors to prevent
- logging unhandled threading exceptions. Patch by Victor Stinner.
-
-- bpo-46600: Fix test_gdb.test_pycfunction() for Python built with ``clang
- -Og``. Tolerate inlined functions in the gdb traceback. Patch by Victor
- Stinner.
-
-- bpo-46542: Fix a Python crash in test_lib2to3 when using Python built in
- debug mode: limit the recursion limit. Patch by Victor Stinner.
-
-- bpo-46576: test_peg_generator now disables compiler optimization when
- testing compilation of its own C extensions to significantly speed up the
- testing on non-debug builds of CPython.
-
-- bpo-46542: Fix ``test_json`` tests checking for :exc:`RecursionError`:
- modify these tests to use ``support.infinite_recursion()``. Patch by
- Victor Stinner.
-
-- bpo-13886: Skip test_builtin PTY tests on non-ASCII characters if the
- readline module is loaded. The readline module changes input() behavior,
- but test_builtin is not intented to test the readline module. Patch by
- Victor Stinner.
-
-- bpo-40280: Add :func:`test.support.requires_fork` decorators to mark tests
- that require a working :func:`os.fork`.
-
-- bpo-40280: Add :func:`test.support.requires_subprocess` decorator to mark
- tests which require working :mod:`subprocess` module or ``os.spawn*``. The
- wasm32-emscripten platform has no support for processes.
-
-- bpo-46126: Disable 'descriptions' when running tests internally.
-
-Build
------
-
-- bpo-46602: Tidied up configure.ac so that conftest.c is truncated rather
- than appended. This assists in the case where the 'rm' of conftest.c fails
- to happen between tests. Downstream issues such as a clobbered SOABI can
- result.
-
-- bpo-46600: Fix the test checking if the C compiler supports ``-Og`` option
- in the ``./configure`` script to also use ``-Og`` on clang which supports
- it. Patch by Victor Stinner.
-
-- bpo-38472: Fix GCC detection in setup.py when cross-compiling. The C
- compiler is now run with LC_ALL=C. Previously, the detection failed with a
- German locale.
-
-- bpo-46513: :program:`configure` no longer uses ``AC_C_CHAR_UNSIGNED``
- macro and ``pyconfig.h`` no longer defines reserved symbol
- ``__CHAR_UNSIGNED__``.
-
-- bpo-46471: Use global singletons for single byte bytes objects in
- deepfreeze.
-
-- bpo-46443: Deepfreeze now uses cached small integers as it saves some
- space for common small integers.
-
-- bpo-46429: Merge all deep-frozen files into one for space savings. Patch
- by Kumar Aditya.
-
-- bpo-45569: The build now defaults to using 30-bit digits for Python
- integers. Previously either 15-bit or 30-bit digits would be selected,
- depending on the platform. 15-bit digits may still be selected using the
- ``--enable-big-digits=15`` option to the ``configure`` script, or by
- defining ``PYLONG_BITS_IN_DIGIT`` in ``pyconfig.h``.
-
-- bpo-45925: Update Windows installer to use SQLite 3.37.2.
-
-- bpo-43112: Detect musl libc as a separate SOABI (tagged as
- ``linux-musl``).
-
-Windows
--------
-
-- bpo-33125: The traditional EXE/MSI based installer for Windows is now
- available for ARM64
-
-- bpo-46362: os.path.abspath("C:\CON") is now fixed to return "\\.\CON", not
- the same path. The regression was true of all legacy DOS devices such as
- COM1, LPT1, or NUL.
-
-- bpo-44934: The installer now offers a command-line only option to add the
- installation directory to the end of :envvar:`PATH` instead of at the
- start.
-
-macOS
------
-
-- bpo-45925: Update macOS installer to SQLite 3.37.2.
-
-IDLE
-----
-
-- bpo-45296: Clarify close, quit, and exit in IDLE. In the File menu,
- 'Close' and 'Exit' are now 'Close Window' (the current one) and 'Exit' is
- now 'Exit IDLE' (by closing all windows). In Shell, 'quit()' and 'exit()'
- mean 'close Shell'. If there are no other windows, this also exits IDLE.
-
-C API
------
-
-- bpo-40170: Remove the ``PyHeapType_GET_MEMBERS()`` macro. It was exposed
- in the public C API by mistake, it must only be used by Python internally.
- Use the ``PyTypeObject.tp_members`` member instead. Patch by Victor
- Stinner.
-
-- bpo-40170: Move _Py_GetAllocatedBlocks() and _PyObject_DebugMallocStats()
- private functions to the internal C API. Patch by Victor Stinner.
-
-- bpo-46433: The internal function _PyType_GetModuleByDef now correctly
- handles inheritance patterns involving static types.
-
-- bpo-45459: :c:type:`Py_buffer` and various ``Py_buffer`` related functions
- are now part of the limited API and stable ABI.
-
-- bpo-14916: Fixed bug in the tokenizer that prevented
- ``PyRun_InteractiveOne`` from parsing from the provided FD.
-
-
-What's New in Python 3.11.0 alpha 4?
-====================================
-
-*Release date: 2022-01-13*
-
-Core and Builtins
------------------
-
-- bpo-46070: :c:func:`Py_EndInterpreter` now explicitly untracks all objects
- currently tracked by the GC. Previously, if an object was used later by
- another interpreter, calling :c:func:`PyObject_GC_UnTrack` on the object
- crashed if the previous or the next object of the :c:type:`PyGC_Head`
- structure became a dangling pointer. Patch by Victor Stinner.
-
-- bpo-46347: Fix memory leak in PyEval_EvalCodeEx.
-
-- bpo-46339: Fix a crash in the parser when retrieving the error text for
- multi-line f-strings expressions that do not start in the first line of
- the string. Patch by Pablo Galindo
-
-- bpo-46331: Do not set line number of instruction storing doc-string. Fixes
- regression introduced in 3.11 alpha.
-
-- bpo-46314: Remove spurious "call" event when creating a lambda function
- that was accidentally introduced in 3.11a4.
-
-- bpo-46289: ASDL declaration of ``FormattedValue`` has changed to reflect
- ``conversion`` field is not optional.
-
-- bpo-46297: Fixed an interpreter crash on bootup with multiple PythonPaths
- set in the Windows registry. Patch by Derzsi Dániel.
-
-- bpo-46237: Fix the line number of tokenizer errors inside f-strings. Patch
- by Pablo Galindo.
-
-- bpo-46263: We always expect the "use_frozen_modules" config to be set, now
- that getpath.c was rewritten in pure Python and the logic improved.
-
-- bpo-46006: Fix a regression when a type method like ``__init__()`` is
- modified in a subinterpreter. Fix a regression in
- ``_PyUnicode_EqualToASCIIId()`` and type ``update_slot()``. Revert the
- change which made the Unicode dictionary of interned strings compatible
- with subinterpreters: the internal interned dictionary is shared again by
- all interpreters. Patch by Victor Stinner.
-
-- bpo-45923: Add RESUME opcode. This is a logical no-op. It is emitted by
- the compiler anywhere a Python function can be entered. It is used by the
- interpreter to perform tracing and optimizer checks.
-
-- bpo-46208: Fix the regression of os.path.normpath("A/../../B") not
- returning expected "../B" but "B".
-
-- bpo-46240: Correct the error message for unclosed parentheses when the
- tokenizer doesn't reach the end of the source when the error is reported.
- Patch by Pablo Galindo
-
-- bpo-46009: Remove the ``GEN_START`` opcode.
-
-- bpo-46235: Certain sequence multiplication operations like ``[0] * 1_000``
- are now faster due to reference-counting optimizations. Patch by Dennis
- Sweeney.
-
-- bpo-46221: :opcode:`PREP_RERAISE_STAR` no longer pushes ``lasti`` to the
- stack.
-
-- bpo-46202: Remove :opcode:`POP_EXCEPT_AND_RERAISE` and replace it by an
- equivalent sequence of other opcodes.
-
-- bpo-46085: Fix iterator cache mechanism of :class:`OrderedDict`.
-
-- bpo-46055: Speed up shifting operation involving integers less than
- :c:macro:`PyLong_BASE`. Patch by Xinhang Xu.
-
-- bpo-46110: Add a maximum recursion check to the PEG parser to avoid stack
- overflow. Patch by Pablo Galindo
-
-- bpo-46107: Fix bug where :meth:`ExceptionGroup.split` and
- :meth:`ExceptionGroup.subgroup` did not copy the exception group's
- ``__note__`` field to the parts.
-
-- bpo-45711: The interpreter state's representation of handled exceptions
- (a.k.a exc_info, or _PyErr_StackItem) now has only the ``exc_value``
- field, ``exc_type`` and ``exc_traceback`` have been removed as their
- values can be derived from ``exc_value``.
-
-- bpo-44525: Replace the four call bytecode instructions which one pre-call
- instruction and two call instructions.
-
- Removes ``CALL_FUNCTION``, ``CALL_FUNCTION_KW``, ``CALL_METHOD`` and
- ``CALL_METHOD_KW``.
-
- Adds ``CALL_NO_KW`` and ``CALL_KW`` call instructions, and
- ``PRECALL_METHOD`` prefix for pairing with ``LOAD_METHOD``.
-
-- bpo-46039: Remove the ``YIELD_FROM`` instruction and replace it with the
- ``SEND`` instruction which performs the same operation, but without the
- loop.
-
-- bpo-45635: The code called from :c:func:`_PyErr_Display` was refactored to
- improve error handling. It now exits immediately upon an unrecoverable
- error.
-
-- bpo-46054: Fix parser error when parsing non-utf8 characters in source
- files. Patch by Pablo Galindo.
-
-- bpo-46042: Improve the location of the caret in :exc:`SyntaxError`
- exceptions emitted by the symbol table. Patch by Pablo Galindo.
-
-- bpo-46049: Ensure :file:`._pth` files work as intended on platforms other
- than Windows.
-
-- bpo-46048: Fixes parsing of :file:`._pth` files on startup so that
- single-character paths are correctly read.
-
-- bpo-37971: Fix a bug where the line numbers given in a traceback when a
- decorator application raised an exception were wrong.
-
-- bpo-46031: Add :opcode:`POP_JUMP_IF_NOT_NONE` and
- :opcode:`POP_JUMP_IF_NONE` opcodes to speed up conditional jumps.
-
-- bpo-45654: Deepfreeze :mod:`runpy`, patch by Kumar Aditya.
-
-- bpo-46025: Fix a crash in the :mod:`atexit` module involving functions
- that unregister themselves before raising exceptions. Patch by Pablo
- Galindo.
-
-- bpo-46000: Improve compatibility of the :mod:`curses` module with NetBSD
- curses.
-
-- bpo-44525: Specialize the CALL_FUNCTION instruction for calls to builtin
- types with a single argument. Speeds up ``range(x)``, ``list(x)``, and
- specifically ``type(obj)``.
-
-- bpo-42918: Fix bug where the built-in :func:`compile` function did not
- always raise a :exc:`SyntaxError` when passed multiple statements in
- 'single' mode. Patch by Weipeng Hong.
-
-- bpo-45953: The main interpreter in _PyRuntimeState.interpreters is now
- statically allocated (as part of _PyRuntime). Likewise for the initial
- thread state of each interpreter. This means less allocation during
- runtime init, as well as better memory locality for these key state
- objects.
-
-- bpo-45292: Complete the :pep:`654` implementation: add ``except*``.
-
-- bpo-43413: Revert changes in ``set.__init__``. Subclass of :class:`set`
- needs to define a ``__init__()`` method if it defines a ``__new__()``
- method with additional keyword parameters.
-
-- bpo-43931: Added the :c:data:`Py_Version` constant which bears the same
- value as :c:macro:`PY_VERSION_HEX`. Patch by Gabriele N. Tornetta.
-
-Library
--------
-
-- bpo-46342: The ``@typing.final`` decorator now sets the ``__final__``
- attribute on the decorated object to allow runtime introspection. Patch by
- Jelle Zijlstra.
-
-- bpo-46328: Added the :meth:`sys.exception` method which returns the active
- exception instance.
-
-- bpo-46307: Add :meth:`string.Template.is_valid` and
- :meth:`string.Template.get_identifiers` methods.
-
-- bpo-46306: Assume that :class:`types.CodeType` always has
- :attr:`types.CodeType.co_firstlineno` in :mod:`doctest`.
-
-- bpo-40479: Fix :mod:`hashlib` *usedforsecurity* option to work correctly
- with OpenSSL 3.0.0 in FIPS mode.
-
-- bpo-46070: Fix possible segfault when importing the :mod:`asyncio` module
- from different sub-interpreters in parallel. Patch by Erlend E. Aasland.
-
-- bpo-46244: Removed ``__slots__`` from :class:`typing.ParamSpec` and
- :class:`typing.TypeVar`. They served no purpose. Patch by Arie Bovenberg.
-
-- bpo-46278: Reflect ``context`` argument in ``AbstractEventLoop.call_*()``
- methods. Loop implementations already support it.
-
-- bpo-46269: Remove special-casing of ``__new__`` in
- :meth:`enum.Enum.__dir__`.
-
-- bpo-46266: Improve day constants in :mod:`calendar`.
-
- Now all constants (`MONDAY` ... `SUNDAY`) are documented, tested, and
- added to ``__all__``.
-
-- bpo-46257: Optimized the mean, variance, and stdev functions in the
- statistics module. If the input is an iterator, it is consumed in a single
- pass rather than eating memory by conversion to a list. The single pass
- algorithm is about twice as fast as the previous two pass code.
-
-- bpo-41011: Added two new variables to *pyvenv.cfg* which is generated by
- :mod:`venv` module: *executable* for the executable and *command* for the
- command line used to create the environment.
-
-- bpo-46239: Improve error message when importing
- :mod:`asyncio.windows_events` on non-Windows.
-
-- bpo-46238: Reuse ``_winapi`` constants in ``asyncio.windows_events``.
-
-- bpo-46222: Adding ``SF_NOCACHE`` sendfile constant for FreeBSD for the
- posixmodule.
-
-- bpo-37295: Add fast path for ``0 <= k <= n <= 67`` for :func:`math.comb`.
-
-- bpo-46176: Adding the ``MAP_STACK`` constant for the mmap module.
-
-- bpo-43424: Deprecate :attr:`webbrowser.MacOSXOSAScript._name` and use
- ``name`` instead.
-
-- bpo-45321: Added missing error codes to module
- ``xml.parsers.expat.errors``.
-
-- bpo-46125: Refactor tests to test traversable API directly. Includes
- changes from importlib 5.4.0.
-
-- bpo-46118: Moved importlib.resources and its related functionality to a
- package.
-
-- bpo-37578: Add *include_hidden* parameter to :func:`~glob.glob` and
- :func:`~glob.iglob` to match hidden files and directories when using
- special characters like ``*``, ``**``, ``?`` and ``[]``.
-
-- bpo-20369: :func:`concurrent.futures.wait` no longer blocks forever when
- given duplicate Futures. Patch by Kumar Aditya.
-
-- bpo-46105: Honor spec when generating requirement specs with urls and
- extras (importlib_metadata 4.8.3).
-
-- bpo-44893: EntryPoint objects are no longer tuples. Recommended means to
- access is by attribute ('.name', '.group') or accessor ('.load()'). Access
- by index is deprecated and will raise deprecation warning.
-
-- bpo-22815: Print unexpected successes together with failures and errors in
- summary in :class:`unittest.TextTestResult`.
-
-- bpo-22047: Calling :meth:`add_argument_group` on an argument group is
- deprecated. Calling :meth:`add_argument_group` or
- :meth:`add_mutually_exclusive_group` on a mutually exclusive group is
- deprecated.
-
- These features were never supported and do not always work correctly. The
- functions exist on the API by accident through inheritance and will be
- removed in the future.
-
-- bpo-26952: :mod:`argparse` raises :exc:`ValueError` with clear message
- when trying to render usage for an empty mutually exclusive group.
- Previously it raised a cryptic :exc:`IndexError`.
-
-- bpo-45615: Functions in the :mod:`traceback` module raise :exc:`TypeError`
- rather than :exc:`AttributeError` when an exception argument is not of
- type :exc:`BaseException`.
-
-- bpo-16594: Add allow allow_reuse_port flag in socketserver.
-
-- bpo-27718: Fix help for the :mod:`signal` module. Some functions (e.g.
- ``signal()`` and ``getsignal()``) were omitted.
-
-- bpo-46032: The ``registry()`` method of :func:`functools.singledispatch`
- functions checks now the first argument or the first parameter annotation
- and raises a TypeError if it is not supported. Previously unsupported
- "types" were ignored (e.g. ``typing.List[int]``) or caused an error at
- calling time (e.g. ``list[int]``).
-
-- bpo-46014: Add ability to use ``typing.Union`` and ``types.UnionType`` as
- dispatch argument to ``functools.singledispatch``. Patch provided by Yurii
- Karabas.
-
-- bpo-27062: Add :attr:`__all__` to :mod:`inspect`, patch by Kumar Aditya.
-
-- bpo-46018: Ensure that :func:`math.expm1` does not raise on underflow.
-
-- bpo-46016: Adding :attr:`F_DUP2FD` and :attr:`F_DUP2FD_CLOEXEC` constants
- from FreeBSD into the fcntl module.
-
-- bpo-45755: :mod:`typing` generic aliases now reveal the class attributes
- of the original generic class when passed to ``dir()``. This was the
- behavior up to Python 3.6, but was changed in 3.7-3.9.
-
-- bpo-45874: The empty query string, consisting of no query arguments, is
- now handled correctly in ``urllib.parse.parse_qsl``. This caused problems
- before when strict parsing was enabled.
-
-- bpo-44674: Change how dataclasses disallows mutable default values. It
- used to use a list of known types (list, dict, set). Now it disallows
- unhashable objects to be defaults. It's using unhashability as a proxy
- for mutability. Patch by Eric V. Smith, idea by Raymond Hettinger.
-
-- bpo-23882: Remove namespace package (PEP 420) support from unittest
- discovery. It was introduced in Python 3.4 but has been broken since
- Python 3.7.
-
-- bpo-25066: Added a :meth:`__repr__` method to
- :class:`multiprocessing.Event` objects, patch by Kumar Aditya.
-
-- bpo-45643: Added :data:`signal.SIGSTKFLT` on platforms where this signal
- is defined.
-
-- bpo-44092: Fetch across rollback no longer raises
- :exc:`~sqlite3.InterfaceError`. Instead we leave it to the SQLite library
- to handle these cases. Patch by Erlend E. Aasland.
-
-- bpo-42413: Replace ``concurrent.futures.TimeoutError`` and
- ``asyncio.TimeoutError`` with builtin :exc:`TimeoutError`, keep these
- names as deprecated aliases.
-
-Documentation
--------------
-
-- bpo-46196: Document method :meth:`cmd.Cmd.columnize`.
-
-- bpo-46120: State that ``|`` is preferred for readability over ``Union`` in
- the :mod:`typing` docs.
-
-- bpo-46109: Extracted ``importlib.resources`` and
- ``importlib.resources.abc`` documentation into separate files.
-
-- bpo-19737: Update the documentation for the :func:`globals` function.
-
-Tests
------
-
-- bpo-46296: Add a test case for :mod:`enum` with ``_use_args_ == True`` and
- ``_member_type_ == object``.
-
-- bpo-46205: Fix hang in runtest_mp due to race condition
-
-- bpo-46263: Fix test_capi on FreeBSD 14-dev: instruct jemalloc to not fill
- freed memory with junk byte.
-
-- bpo-46262: Cover ``ValueError`` path in tests for
- :meth:`enum.Flag._missing_`.
-
-- bpo-46150: Now ``fakename`` in
- ``test_pathlib.PosixPathTest.test_expanduser`` is checked to be
- non-existent.
-
-- bpo-46129: Rewrite ``asyncio.locks`` tests with
- :class:`unittest.IsolatedAsyncioTestCase` usage.
-
-- bpo-23819: Fixed :mod:`asyncio` tests in python optimized mode. Patch by
- Kumar Aditya.
-
-- bpo-46114: Fix test case for OpenSSL 3.0.1 version. OpenSSL 3.0 uses
- ``0xMNN00PP0L``.
-
-Build
------
-
-- bpo-44133: When Python is configured with
- :option:`--without-static-libpython`, the Python static library
- (libpython.a) is no longer built. Patch by Victor Stinner.
-
-- bpo-44133: When Python is built without :option:`--enable-shared`, the
- ``python`` program is now linked to object files, rather than being linked
- to the Python static library (libpython.a), to make sure that all symbols
- are exported. Previously, the linker omitted some symbols like the
- :c:func:`Py_FrozenMain` function. Patch by Victor Stinner.
-
-- bpo-40280: The ``configure`` script has a new option
- ``--with-emscripten-target`` to select browser or node as Emscripten build
- target.
-
-- bpo-46315: Added and fixed ``#ifdef HAVE_FEATURE`` checks for
- functionality that is not available on WASI platform.
-
-- bpo-45723: Fixed a regression in ``configure`` check for
- :func:`select.epoll`.
-
-- bpo-46263: ``configure`` no longer sets ``MULTIARCH`` on FreeBSD
- platforms.
-
-- bpo-46106: Updated OpenSSL to 1.1.1m in Windows builds, macOS installer
- builds, and CI. Patch by Kumar Aditya.
-
-- bpo-46088: Automatically detect or install bootstrap Python runtime when
- building from Visual Studio.
-
-- bpo-46072: Add a --with-pystats configure option to turn on internal
- statistics gathering.
-
-- bpo-40280: A new directory ``Tools/wasm`` contains WebAssembly-related
- helpers like ``config.site`` override for wasm32-emscripten, wasm assets
- generator to bundle the stdlib, and a README.
-
-- bpo-46023: :program:`makesetup` no longer builds extensions that have been
- marked as *disabled*. This allows users to disable modules in
- ``Modules/Setup.local``.
-
-- bpo-45949: Use pure Python ``freeze_module`` for all but importlib
- bootstrap files. ``--with-freeze-module`` :program:`configure` option is
- no longer needed for cross builds.
-
-Windows
--------
-
-- bpo-46217: Removed parameter that is unsupported on Windows 8.1 and early
- Windows 10 and may have caused build or runtime failures.
-
-macOS
------
-
-- bpo-40477: The Python Launcher app for macOS now properly launches scripts
- and, if necessary, the Terminal app when running on recent macOS releases.
-
-C API
------
-
-- bpo-46236: Fix a bug in :c:func:`PyFunction_GetAnnotations` that caused it
- to return a ``tuple`` instead of a ``dict``.
-
-- bpo-46140: :c:func:`PyBuffer_GetPointer`,
- :c:func:`PyBuffer_FromContiguous`, :c:func:`PyBuffer_ToContiguous` and
- :c:func:`PyMemoryView_FromBuffer` now take buffer info by ``const
- Py_buffer *`` instead of ``Py_buffer *``, as they do not need mutability.
- :c:func:`PyBuffer_FromContiguous` also now takes the source buffer as
- ``const void *``, and similarly :c:func:`PyBuffer_GetPointer` takes the
- strides as ``const Py_ssize_t *``.
-
-- bpo-45855: Document that the *no_block* argument to
- :c:func:`PyCapsule_Import` is a no-op now.
-
-- bpo-45855: Replaced deprecated usage of
- :c:func:`PyImport_ImportModuleNoBlock` with
- :c:func:`PyImport_ImportModule` in stdlib modules. Patch by Kumar Aditya.
-
-- bpo-46007: The :c:func:`PyUnicode_CHECK_INTERNED` macro has been excluded
- from the limited C API. It was never usable there, because it used
- internal structures which are not available in the limited C API. Patch by
- Victor Stinner.
-
-
-What's New in Python 3.11.0 alpha 3?
-====================================
-
-*Release date: 2021-12-08*
-
-Core and Builtins
------------------
-
-- bpo-46009: Restore behavior from 3.9 and earlier when sending non-None to
- newly started generator. In 3.9 this did not affect the state of the
- generator. In 3.10.0 and 3.10.1 ``gen_func().send(0)`` is equivalent to
- ``gen_func().throw(TypeError(...)`` which exhausts the generator. In
- 3.10.2 onward, the behavior has been reverted to that of 3.9.
-
-- bpo-46004: Fix the :exc:`SyntaxError` location for errors involving for
- loops with invalid targets. Patch by Pablo Galindo
-
-- bpo-45711: :c:func:`_PyErr_ChainStackItem` no longer normalizes
- ``exc_info`` (including setting the traceback on the exception instance)
- because ``exc_info`` is always normalized.
-
-- bpo-45607: The ``__note__`` field was added to :exc:`BaseException`. It is
- ``None`` by default but can be set to a string which is added to the
- exception's traceback.
-
-- bpo-45947: Place pointers to dict and values immediately before GC header.
- This reduces number of dependent memory loads to access either dict or
- values from 3 to 1.
-
-- bpo-45915: ``is_valid_fd`` now uses faster ``fcntl(fd, F_GETFD)`` on
- Linux, macOS, and Windows.
-
-- bpo-44530: Reverts a change to the ``code.__new__`` :ref:`audit event
- <audit-events>` from an earlier prerelease.
-
-- bpo-42268: Fail the configure step if the selected compiler doesn't
- support memory sanitizer. Patch by Pablo Galindo
-
-- bpo-45711: The three values of ``exc_info`` are now always consistent with
- each other. In particular, the ``type`` and ``traceback`` fields are now
- derived from the exception instance. This impacts the return values of
- :func:`sys.exc_info` and :c:func:`PyErr_GetExcInfo()` if the exception
- instance is modified while the exception is handled, as well as
- :c:func:`PyErr_SetExcInfo()`, which now ignores the ``type`` and
- ``traceback`` arguments provided to it.
-
-- bpo-45727: Refine the custom syntax error that suggests that a comma may
- be missing to trigger only when the expressions are detected between
- parentheses or brackets. Patch by Pablo Galindo
-
-- bpo-45885: Specialized the ``COMPARE_OP`` opcode using the PEP 659
- machinery.
-
-- bpo-45786: Allocate space for the interpreter frame in the frame object,
- to avoid an additional allocation when the frame object outlives the frame
- activation.
-
-- bpo-45614: Fix :mod:`traceback` display for exceptions with invalid module
- name.
-
-- bpo-45813: Fix crash when calling coro.cr_frame.clear() after coroutine
- has been freed.
-
-- bpo-45811: Improve the tokenizer errors when encountering invisible
- control characters in the parser. Patch by Pablo Galindo
-
-- bpo-45848: Allow the parser to obtain error lines directly from encoded
- files. Patch by Pablo Galindo
-
-- bpo-45709: Restore behavior from 3.10 when tracing an exception raised
- within a with statement.
-
-- bpo-44525: Adds new :opcode:`COPY_FREE_VARS` opcode, to make copying of
- free variables from function to frame explicit. Helps optimization of
- calls to Python function.
-
-- bpo-45829: Specialize :opcode:`BINARY_SUBSCR` for classes with a
- ``__getitem__`` method implemented in Python
-
-- bpo-45826: Fixed a crash when calling ``.with_traceback(None)`` on
- ``NameError``. This occurs internally in
- ``unittest.TestCase.assertRaises()``.
-
-- bpo-45822: Fixed a bug in the parser that was causing it to not respect
- :pep:`263` coding cookies when no flags are provided. Patch by Pablo
- Galindo
-
-- bpo-45820: Fix a segfault when the parser fails without reading any input.
- Patch by Pablo Galindo
-
-- bpo-45636: Simplify the implementation of :opcode:`BINARY_OP` by indexing
- into an array of function pointers (rather than switching on the oparg).
-
-- bpo-42540: Fix crash when :func:`os.fork` is called with an active
- non-default memory allocator.
-
-- bpo-45738: Fix computation of error location for invalid continuation
- characters in the parser. Patch by Pablo Galindo.
-
-- bpo-45636: Remove an existing "fast path" for old-style string formatting,
- since it no longer appears to have any measurable impact.
-
-- bpo-45753: Make recursion checks a bit more efficient by tracking amount
- of calls left before overflow.
-
-- bpo-45773: Fix a compiler hang when attempting to optimize certain jump
- patterns.
-
-- bpo-45764: The parser now gives a better error message when leaving out
- the opening parenthesis ``(`` after a ``def``-statement::
-
- >>> def f:
- File "<stdin>", line 1
- def f:
- ^
- SyntaxError: expected '('
-
-- bpo-45609: Specialized the ``STORE_SUBSCR`` opcode using the PEP 659
- machinery.
-
-- bpo-45636: Replace all numeric ``BINARY_*`` and ``INPLACE_*`` instructions
- with a single :opcode:`BINARY_OP` implementation.
-
-- bpo-45582: Path calculation (known as ``getpath``) has been reimplemented
- as a frozen Python module. This should have no visible impact, but may
- affect calculation of all paths referenced in :mod:`sys` and
- :mod:`sysconfig`.
-
-- bpo-45450: Improve the syntax error message for parenthesized arguments.
- Patch by Pablo Galindo.
-
-Library
--------
-
-- bpo-27946: Fix possible crash when getting an attribute of
- class:`xml.etree.ElementTree.Element` simultaneously with replacing the
- ``attrib`` dict.
-
-- bpo-45711: Make :mod:`asyncio` normalize exceptions as soon as they are
- captured with :c:func:`PyErr_Fetch`, and before they are stored as an
- exc_info triplet. This brings :mod:`asyncio` in line with the rest of the
- codebase, where an exc_info triplet is always normalized.
-
-- bpo-23819: Replaced asserts with exceptions in asyncio, patch by Kumar
- Aditya.
-
-- bpo-13236: :class:`unittest.TextTestResult` and
- :class:`unittest.TextTestRunner` flush now the output stream more often.
-
-- bpo-45917: Added :func:`math.exp2`:, which returns 2 raised to the power
- of x.
-
-- bpo-37658: Fix issue when on certain conditions ``asyncio.wait_for()`` may
- allow a coroutine to complete successfully, but fail to return the result,
- potentially causing memory leaks or other issues.
-
-- bpo-45876: Improve the accuracy of stdev() and pstdev() in the statistics
- module. When the inputs are floats or fractions, the output is a
- correctly rounded float
-
-- bpo-44649: Handle dataclass(slots=True) with a field that has default a
- default value, but for which init=False.
-
-- bpo-45803: Added missing kw_only parameter to
- dataclasses.make_dataclass().
-
-- bpo-45837: The :meth:`turtle.RawTurtle.settiltangle` is deprecated since
- Python 3.1, it now emits a deprecation warning and will be removed in
- Python 3.13.
-
- Use :meth:`turtle.RawTurtle.tiltangle` instead.
-
- :meth:`turtle.RawTurtle.tiltangle` was earlier incorrectly marked as
- deprecated, its docstring has been corrected.
-
- Patch by Hugo van Kemenade.
-
-- bpo-45831: :mod:`faulthandler` can now write ASCII-only strings (like
- filenames and function names) with a single write() syscall when dumping a
- traceback. It reduces the risk of getting an unreadable dump when two
- threads or two processes dump a traceback to the same file (like stderr)
- at the same time. Patch by Victor Stinner.
-
-- bpo-45828: :mod:`sqlite` C callbacks now use unraisable exceptions if
- callback tracebacks are enabled. Patch by Erlend E. Aasland.
-
-- bpo-41735: Fix thread lock in ``zlib.Decompress.flush()`` method before
- ``PyObject_GetBuffer``.
-
-- bpo-45235: Reverted an argparse bugfix that caused regression in the
- handling of default arguments for subparsers. This prevented leaf level
- arguments from taking precedence over root level arguments.
-
-- bpo-45754: Fix a regression in Python 3.11a1 and 3.11a2 where
- :mod:`sqlite3` incorrectly would use ``SQLITE_LIMIT_LENGTH`` when checking
- SQL statement lengths. Now, ``SQLITE_LIMIT_SQL_LENGTH`` is used. Patch by
- Erlend E. Aasland.
-
-- bpo-45766: Added *proportional* option to
- :meth:`statistics.linear_regression`.
-
-- bpo-45765: In importlib.metadata, fix distribution discovery for an empty
- path.
-
-- bpo-45757: Fix bug where :mod:`dis` produced an incorrect oparg when
- :opcode:`EXTENDED_ARG` is followed by an opcode that does not use its
- argument.
-
-- bpo-45644: In-place JSON file formatting using ``python3 -m json.tool
- infile infile`` now works correctly, previously it left the file empty.
- Patch by Chris Wesseling.
-
-- bpo-45703: When a namespace package is imported before another module from
- the same namespace is created/installed in a different :data:`sys.path`
- location while the program is running, calling the
- :func:`importlib.invalidate_caches` function will now also guarantee the
- new module is noticed.
-
-- bpo-45535: Improve output of ``dir()`` with Enums.
-
-- bpo-45664: Fix :func:`types.resolve_bases` and :func:`types.new_class` for
- :class:`types.GenericAlias` instance as a base.
-
-- bpo-45663: Fix :func:`dataclasses.is_dataclass` for dataclasses which are
- subclasses of :class:`types.GenericAlias`.
-
-- bpo-45662: Fix the repr of :data:`dataclasses.InitVar` with a type alias
- to the built-in class, e.g. ``InitVar[list[int]]``.
-
-- bpo-43137: Launch GNOME web browsers via gio tool instead of obsolete
- gvfs-open
-
-- bpo-45429: On Windows, :func:`time.sleep` now uses a waitable timer which
- supports high-resolution timers. Patch by Dong-hee Na and Eryk Sun.
-
-- bpo-37295: Optimize :func:`math.comb` and :func:`math.perm`.
-
-- bpo-45514: Deprecated legacy functions in :mod:`importlib.resources`.
-
-- bpo-45507: Add tests for truncated/missing trailers in gzip.decompress
- implementation.
-
-- bpo-45359: Implement :pep:`585` for :class:`graphlib.TopologicalSorter`.
-
-- bpo-44733: Add ``max_tasks_per_child`` to
- :class:`concurrent.futures.ProcessPoolExecutor`. This allows users to
- specify the maximum number of tasks a single process should execute before
- the process needs to be restarted.
-
-- bpo-28806: Improve netrc library. netrc file no longer needs to contain
- all tokens. And if the login name is anonymous, security check is no
- longer need.
-
-- bpo-43498: Avoid a possible *"RuntimeError: dictionary changed size during
- iteration"* when adjusting the process count of
- :class:`ProcessPoolExecutor`.
-
-- bpo-42158: Add MIME types for N-quads, N-triples, Notation3 and TriG to
- ``mimetypes``.
-
-- bpo-30533: Add :func:`inspect.getmembers_static` , it return all members
- without triggering dynamic lookup via the descriptor protocol. Patch by
- Weipeng Hong.
-
-Documentation
--------------
-
-- bpo-42238: ``make -C Doc suspicious`` will be removed soon in favor of
- ``make -C Doc check``, mark it as deprecated.
-
-- bpo-45840: Improve cross-references in the documentation for the data
- model.
-
-- bpo-45640: Properly marked-up grammar tokens in the documentation are now
- clickable and take you to the definition of a given piece of grammar.
- Patch by Arthur Milchior.
-
-- bpo-45788: Link doc for sys.prefix to sysconfig doc on installation paths.
-
-- bpo-45772: ``socket.socket`` documentation is corrected to a class from a
- function.
-
-- bpo-45392: Update the docstring of the :class:`type` built-in to remove a
- redundant line and to mention keyword arguments for the constructor.
-
-- bpo-45250: Update the documentation to note that CPython does not
- consistently require iterators to define ``__iter__``.
-
-- bpo-25381: In the extending chapter of the extending doc, update a
- paragraph about the global variables containing exception information.
-
-- bpo-43905: Expanded :func:`~dataclasses.astuple` and
- :func:`~dataclasses.asdict` docs, warning about deepcopy being applied and
- providing a workaround.
-
-Tests
------
-
-- bpo-45695: Out-of-tree builds with a read-only source directory are now
- tested by CI.
-
-- bpo-19460: Add new Test for
- ``Lib/email/mime/nonmultipart.py::MIMENonMultipart``.
-
-- bpo-45835: Fix race condition in test_queue tests with multiple "feeder"
- threads.
-
-- bpo-45783: The test for the freeze tool now handles file moves and
- deletions.
-
-- bpo-45745: Remove the ``--findleaks`` command line option of regrtest: use
- the ``--fail-env-changed`` option instead. Since Python 3.7, it was a
- deprecated alias to the ``--fail-env-changed`` option.
-
-- bpo-45701: Add tests with ``tuple`` type with :func:`functools.lru_cache`
- to ``test_functools``.
-
-Build
------
-
-- bpo-44035: CI now verifies that autoconf files have been regenerated with
- a current and unpatched autoconf package.
-
-- bpo-45950: The build system now uses a :program:`_bootstrap_python`
- interpreter for freezing and deepfreezing again. To speed up build process
- the build tools :program:`_bootstrap_python` and :program:`_freeze_module`
- are no longer build with LTO.
-
-- bpo-45881: The :program:`configure` script now accepts
- ``--with-build-python`` and ``--with-freeze-module`` options to make cross
- compiling easier.
-
-- bpo-40280: Emscripten platform now uses ``.wasm`` suffix by default.
-
-- bpo-40280: Disable unusable core extension modules on WASM/Emscripten
- targets.
-
-- bpo-40280: ``configure`` now checks for socket ``shutdown`` function. The
- check makes it possible to disable ``SYS_shutdown`` with
- ``ac_cv_func_shutdown=no`` in CONFIG_SITE.
-
-- bpo-40280: ``configure`` now checks for functions ``fork1, getegid,
- geteuid, getgid, getppid, getuid, opendir, pipe, system, wait, ttyname``.
-
-- bpo-33393: Update ``config.guess`` to 2021-06-03 and ``config.sub`` to
- 2021-08-14. ``Makefile`` now has an ``update-config`` target to make
- updating more convenient.
-
-- bpo-45866: ``make regen-all`` now produces the same output when run from a
- directory other than the source tree: when building Python out of the
- source tree. pegen now strips directory of the "generated by pygen from
- <FILENAME>" header Patch by Victor Stinner.
-
-- bpo-40280: ``configure`` now accepts machine ``wasm32`` or ``wasm64`` and
- OS ``wasi`` or ``emscripten`` for cross building, e.g.
- ``wasm32-unknown-emscripten``, ``wasm32-wasi``, or
- ``wasm32-unknown-wasi``.
-
-- bpo-41498: Python now compiles on platforms without ``sigset_t``. Several
- functions in :mod:`signal` are not available when ``sigset_t`` is missing.
-
- Based on patch by Roman Yurchak for pyodide.
-
-- bpo-45881: ``setup.py`` now uses ``CC`` from environment first to discover
- multiarch and cross compile paths.
-
-- bpo-45886: The ``_freeze_module`` program path can now be overridden on
- the command line, e.g. ``make
- FREEZE_MODULE=../x86_64/Program/_freeze_module``.
-
-- bpo-45873: Get rid of the ``_bootstrap_python`` build step. The
- deepfreeze.py script is now run using ``$(PYTHON_FOR_REGEN)`` which can be
- Python 3.7 or newer (on Windows, 3.8 or newer).
-
-- bpo-45847: Port builtin hashlib extensions to ``PY_STDLIB_MOD`` macro and
- ``addext()``.
-
-- bpo-45723: Add ``autoconf`` helpers for saving and restoring environment
- variables:
-
- * ``SAVE_ENV``: Save ``$CFLAGS``, ``$LDFLAGS``, ``$LIBS``, and
- ``$CPPFLAGS``.
- * ``RESTORE_ENV``: Restore ``$CFLAGS``, ``$LDFLAGS``, ``$LIBS``, and
- ``$CPPFLAGS``.
- * ``WITH_SAVE_ENV([SCRIPT])``: Run ``SCRIPT`` wrapped with ``SAVE_ENV`` and
- ``RESTORE_ENV``.
-
- Patch by Erlend E. Aasland.
-
-- bpo-45573: Mandatory core modules, that are required to bootstrap Python,
- are now in ``Modules/Setup.bootstrap``.
-
-- bpo-45573: ``configure`` now creates ``Modules/Setup.stdlib`` with
- conditionally enabled/disabled extension module lines. The file is not
- used, yet.
-
-- bpo-45573: ``configure`` now uses a unified format to set state, compiler
- flags, and linker flags in Makefile. The new macro ``PY_STDLIB_MOD`` sets
- three variables that are consumed by ``Modules/Setup`` and ``setup.py``.
-
-- bpo-45816: Python now supports building with Visual Studio 2022 (MSVC
- v143, VS Version 17.0). Patch by Jeremiah Vivian.
-
-- bpo-45800: Settings for :mod:`pyexpat` C extension are now detected by
- ``configure``. The bundled ``expat`` library is built in ``Makefile``.
-
-- bpo-45798: Settings for :mod:`decimal` internal C extension are now
- detected by ``configure``. The bundled ``libmpdec`` library is built in
- ``Makefile``.
-
-- bpo-45723: :program:`configure` has a new option ``--with-pkg-config`` to
- disable or require pkg-config.
-
-- bpo-45774: The build dependencies for :mod:`sqlite3` are now detected by
- ``configure`` and ``pkg-config``. Patch by Erlend E. Aasland.
-
-- bpo-45763: The build dependencies for :mod:`zlib`, :mod:`bz2`, and
- :mod:`lzma` are now detected by ``configure``.
-
-- bpo-45747: gdbm and dbm build dependencies are now detected by
- ``configure``.
-
-- bpo-45743: On macOS, the build system no longer passes
- ``search_paths_first`` to the linker. The flag has been the default since
- Xcode 4 / macOS 10.6.
-
-- bpo-45723: ``configure.ac`` is now compatible with autoconf 2.71.
- Deprecated checks ``STDC_HEADERS`` and ``AC_HEADER_TIME`` have been
- removed.
-
-- bpo-45723: ``configure`` now prints a warning when pkg-config is missing.
-
-- bpo-45731: ``configure --enable-loadable-sqlite-extensions`` is now
- handled by new ``PY_SQLITE_ENABLE_LOAD_EXTENSION`` macro instead of logic
- in setup.py.
-
-- bpo-45723: configure.ac now uses custom helper macros and
- ``AC_CACHE_CHECK`` to simplify and speed up configure runs.
-
-- bpo-45696: Skip the marshal step for frozen modules by generating C code
- that produces a set of ready-to-use code objects. This speeds up startup
- time by another 10% or more.
-
-- bpo-45561: Run smelly.py tool from $(srcdir).
-
-Windows
--------
-
-- bpo-46105: Fixed calculation of :data:`sys.path` in a venv on Windows.
-
-- bpo-45901: When installed through the Microsoft Store and set as the
- default app for :file:`*.py` files, command line arguments will now be
- passed to Python when invoking a script without explicitly launching
- Python (that is, ``script.py args`` rather than ``python script.py
- args``).
-
-- bpo-45616: Fix Python Launcher's ability to distinguish between versions
- 3.1 and 3.10 when either one is explicitly requested. Previously, 3.1
- would be used if 3.10 was requested but not installed, and 3.10 would be
- used if 3.1 was requested but 3.10 was installed.
-
-- bpo-45850: Implement changes to build with deep-frozen modules on Windows.
- Note that we now require Python 3.10 as the "bootstrap" or "host" Python.
-
-- bpo-45732: Updates bundled Tcl/Tk to 8.6.12.
-
-- bpo-45720: Internal reference to :file:`shlwapi.dll` was dropped to help
- improve startup time. This DLL will no longer be loaded at the start of
- every Python process.
-
-macOS
------
-
-- bpo-45732: Update python.org macOS installer to use Tcl/Tk 8.6.12.
-
-C API
------
-
-- bpo-39026: Fix Python.h to build C extensions with Xcode: remove a
- relative include from ``Include/cpython/pystate.h``.
-
-
-What's New in Python 3.11.0 alpha 2?
-====================================
-
-*Release date: 2021-11-05*
-
-Core and Builtins
------------------
-
-- bpo-45716: Improve the :exc:`SyntaxError` message when using ``True``,
- ``None`` or ``False`` as keywords in a function call. Patch by Pablo
- Galindo.
-
-- bpo-45688: :data:`sys.stdlib_module_names` now contains the macOS-specific
- module :mod:`_scproxy`.
-
-- bpo-45379: Clarify :exc:`ImportError` message when we try to explicitly
- import a frozen module but frozen modules are disabled.
-
-- bpo-44525: Specialize simple calls to Python functions (no starargs,
- keyowrd dict, or closure)
-
-- bpo-45530: Cases of sorting using tuples as keys may now be significantly
- faster in some cases. Patch by Tim Peters.
-
- The order of the result may differ from earlier releases if the tuple
- elements don't define a total ordering (see
- :ref:`expressions-value-comparisons` for information on total ordering).
- It's generally true that the result of sorting simply isn't well-defined
- in the absence of a total ordering on list elements.
-
-- bpo-45526: In obmalloc, set ADDRESS_BITS to not ignore any bits (ignored
- 16 before). That is safer in the case that the kernel gives user-space
- virtual addresses that span a range greater than 48 bits.
-
-- bpo-30570: Fixed a crash in ``issubclass()`` from infinite recursion when
- searching pathological ``__bases__`` tuples.
-
-- bpo-45521: Fix a bug in the obmalloc radix tree code. On 64-bit machines,
- the bug causes the tree to hold 46-bits of virtual addresses, rather than
- the intended 48-bits.
-
-- bpo-45494: Fix parser crash when reporting errors involving invalid
- continuation characters. Patch by Pablo Galindo.
-
-- bpo-45445: Python now fails to initialize if it finds an invalid
- :option:`-X` option in the command line. Patch by Pablo Galindo.
-
-- bpo-45340: Object attributes are held in an array instead of a dictionary.
- An object's dictionary are created lazily, only when needed. Reduces the
- memory consumption of a typical Python object by about 30%. Patch by Mark
- Shannon.
-
-- bpo-45408: Fix a crash in the parser when reporting tokenizer errors that
- occur at the same time unclosed parentheses are detected. Patch by Pablo
- Galindo.
-
-- bpo-29410: Add SipHash13 for string hash algorithm and use it by default.
-
-- bpo-45385: Fix reference leak from descr_check. Patch by Dong-hee Na.
-
-- bpo-45367: Specialized the ``BINARY_MULTIPLY`` opcode to
- ``BINARY_MULTIPLY_INT`` and ``BINARY_MULTIPLY_FLOAT`` using the PEP 659
- machinery.
-
-- bpo-21736: Frozen stdlib modules now have ``__file__`` to the .py file
- they would otherwise be loaded from, if possible. For packages,
- ``__path__`` now has the correct entry instead of being an empty list,
- which allows unfrozen submodules to be imported. These are set only if
- the stdlib directory is known when the runtime is initialized. Note that
- the file at ``__file__`` is not guaranteed to exist. None of this affects
- non-stdlib frozen modules nor, for now, frozen modules imported using
- ``PyImport_ImportFrozenModule()``. Also, at the moment ``co_filename`` is
- not updated for the module.
-
-- bpo-45020: For frozen stdlib modules, record the original module name as
- ``module.__spec__.loader_state.origname``. If the value is different than
- ``module.__spec__.name`` then the module was defined as an alias in
- Tools/scripts/freeze_modules.py. If it is ``None`` then the module comes
- from a source file outside the stdlib.
-
-- bpo-45324: In FrozenImporter.find_spec(), we now preserve the information
- needed in exec_module() to load the module. This change mostly impacts
- internal details, rather than changing the importer's behavior.
-
-- bpo-45292: Implement :pep:`654`. Add :class:`ExceptionGroup` and
- :class:`BaseExceptionGroup`. Update traceback display code.
-
-- bpo-40116: Change to the implementation of split dictionaries. Classes
- where the instances differ either in the exact set of attributes, or in
- the order in which those attributes are set, can still share keys. This
- should have no observable effect on users of Python or the C-API. Patch by
- Mark Shannon.
-
-- bpo-44050: Extensions that indicate they use global state (by setting
- ``m_size`` to -1) can again be used in multiple interpreters. This reverts
- to behavior of Python 3.8.
-
-- bpo-44525: Setup initial specialization infrastructure for the
- ``CALL_FUNCTION`` opcode. Implemented initial specializations for C
- function calls:
-
- * ``CALL_FUNCTION_BUILTIN_O`` for ``METH_O`` flag.
-
- * ``CALL_FUNCTION_BUILTIN_FAST`` for ``METH_FASTCALL`` flag without keywords.
-
- * ``CALL_FUNCTION_LEN`` for ``len(o)``.
-
- * ``CALL_FUNCTION_ISINSTANCE`` for ``isinstance(o, t)``.
-
-- bpo-44511: Improve the generated bytecode for class and mapping patterns.
-
-- bpo-43706: Speed up calls to ``enumerate()`` by using the :pep:`590`
- ``vectorcall`` calling convention. Patch by Dong-hee Na.
-
-Library
--------
-
-- bpo-45679: Fix caching of multi-value :data:`typing.Literal`.
- ``Literal[True, 2]`` is no longer equal to ``Literal[1, 2]``.
-
-- bpo-42064: Convert :mod:`sqlite3` to multi-phase initialisation (PEP 489).
- Patches by Erlend E. Aasland.
-
-- bpo-45438: Fix typing.Signature string representation for generic builtin
- types.
-
-- bpo-45613: :mod:`sqlite3` now sets :attr:`sqlite3.threadsafety` based on
- the default threading mode the underlying SQLite library has been compiled
- with. Patch by Erlend E. Aasland.
-
-- bpo-45574: Fix warning about ``print_escape`` being unused.
-
-- bpo-45581: :meth:`sqlite3.connect` now correctly raises :exc:`MemoryError`
- if the underlying SQLite API signals memory error. Patch by Erlend E.
- Aasland.
-
-- bpo-45557: pprint.pprint() now handles underscore_numbers correctly.
- Previously it was always setting it to False.
-
-- bpo-44019: Add :func:`operator.call` to ``operator.__all__``. Patch by
- Kreusada.
-
-- bpo-42174: :meth:`shutil.get_terminal_size` now falls back to sane values
- if the column or line count are 0.
-
-- bpo-35673: Improve the introspectability of the ``__loader__`` attribute
- for namespace packages. :class:`importlib.machinery.NamespaceLoader` is
- now public, and implements the :class:`importlib.abc.InspectLoader`
- interface. ``_NamespaceLoader`` is kept for backward compatibility.
-
-- bpo-45515: Add references to :mod:`zoneinfo` in the :mod:`datetime`
- documentation, mostly replacing outdated references to ``dateutil.tz``.
- Change by Paul Ganssle.
-
-- bpo-45475: Reverted optimization of iterating :class:`gzip.GzipFile`,
- :class:`bz2.BZ2File`, and :class:`lzma.LZMAFile` (see bpo-43787) because
- it caused regression when user iterate them without having reference of
- them. Patch by Inada Naoki.
-
-- bpo-45489: Update :class:`~typing.ForwardRef` to support ``|`` operator.
- Patch by Dong-hee Na.
-
-- bpo-42222: Removed deprecated support for float arguments in
- *randrange()*.
-
-- bpo-45428: Fix a regression in py_compile when reading filenames from
- standard input.
-
-- bpo-45467: Fix incremental decoder and stream reader in the
- "raw-unicode-escape" codec. Previously they failed if the escape sequence
- was split.
-
-- bpo-45461: Fix incremental decoder and stream reader in the
- "unicode-escape" codec. Previously they failed if the escape sequence was
- split.
-
-- bpo-45239: Fixed :func:`email.utils.parsedate_tz` crashing with
- :exc:`UnboundLocalError` on certain invalid input instead of returning
- ``None``. Patch by Ben Hoyt.
-
-- bpo-45417: Fix quadratic behaviour in the enum module: Creation of enum
- classes with a lot of entries was quadratic.
-
-- bpo-45249: Fix the behaviour of :func:`traceback.print_exc` when
- displaying the caret when the ``end_offset`` in the exception is set to 0.
- Patch by Pablo Galindo
-
-- bpo-45416: Fix use of :class:`asyncio.Condition` with explicit
- :class:`asyncio.Lock` objects, which was a regression due to removal of
- explicit loop arguments. Patch by Joongi Kim.
-
-- bpo-20028: Empty escapechar/quotechar is not allowed when initializing
- :class:`csv.Dialect`. Patch by Vajrasky Kok and Dong-hee Na.
-
-- bpo-44904: Fix bug in the :mod:`doctest` module that caused it to fail if
- a docstring included an example with a ``classmethod`` ``property``. Patch
- by Alex Waygood.
-
-- bpo-45406: Make :func:`inspect.getmodule` catch ``FileNotFoundError``
- raised by :'func:`inspect.getabsfile`, and return ``None`` to indicate
- that the module could not be determined.
-
-- bpo-45411: Add extensions for files containing subtitles - .srt & .vtt -
- to the mimetypes.py module.
-
-- bpo-10716: Migrated pydoc to HTML5 (without changing the look of it). Side
- effect is to update xmlrpc's ``ServerHTMLDoc`` which now uses the CSS too.
- cgitb now relies less on pydoc (as it can't use the CSS file).
-
-- bpo-27580: Add support of null characters in :mod:`csv`.
-
-- bpo-45262: Prevent use-after-free in asyncio. Make sure the cached running
- loop holder gets cleared on dealloc to prevent use-after-free in
- get_running_loop
-
-- bpo-45386: Make :mod:`xmlrpc.client` more robust to C runtimes where the
- underlying C ``strftime`` function results in a ``ValueError`` when
- testing for year formatting options.
-
-- bpo-20028: Improve error message of :class:`csv.Dialect` when
- initializing. Patch by Vajrasky Kok and Dong-hee Na.
-
-- bpo-45343: Update bundled pip to 21.2.4 and setuptools to 58.1.0
-
-- bpo-45328: Fixed :class:`http.client.HTTPConnection` to work properly in
- OSs that don't support the ``TCP_NODELAY`` socket option.
-
-- bpo-45243: Add :meth:`~sqlite3.Connection.setlimit` and
- :meth:`~sqlite3.Connection.getlimit` to :class:`sqlite3.Connection` for
- setting and getting SQLite limits by connection basis. Patch by Erlend E.
- Aasland.
-
-- bpo-45320: Removed from the :mod:`inspect` module:
-
- * the ``getargspec`` function, deprecated since Python 3.0;
- use :func:`inspect.signature` or :func:`inspect.getfullargspec` instead.
-
- * the ``formatargspec`` function, deprecated since Python 3.5;
- use the :func:`inspect.signature` function and :class:`Signature` object
- directly.
-
- * the undocumented ``Signature.from_callable`` and ``Signature.from_function``
- functions, deprecated since Python 3.5; use the
- :meth:`Signature.from_callable() <inspect.Signature.from_callable>` method
- instead.
-
- Patch by Hugo van Kemenade.
-
-- bpo-45192: Fix the ``tempfile._infer_return_type`` function so that the
- ``dir`` argument of the :mod:`tempfile` functions accepts an object
- implementing the ``os.PathLike`` protocol.
-
- Patch by Kyungmin Lee.
-
-- bpo-45160: When tracing a tkinter variable used by a ttk OptionMenu,
- callbacks are no longer made twice.
-
-- bpo-25625: Added non parallel-safe :func:`~contextlib.chdir` context
- manager to change the current working directory and then restore it on
- exit. Simple wrapper around :func:`~os.chdir`.
-
-- bpo-24139: Add support for SQLite extended result codes in
- :exc:`sqlite3.Error`. Patch by Erlend E. Aasland.
-
-- bpo-24444: Fixed an error raised in :mod:`argparse` help display when help
- for an option is set to 1+ blank spaces or when *choices* arg is an empty
- container.
-
-- bpo-44547: Implement ``Fraction.__int__``, so that a
- :class:`fractions.Fraction` instance ``f`` passes an ``isinstance(f,
- typing.SupportsInt)`` check.
-
-- bpo-40321: Adds support for HTTP 308 redirects to :mod:`urllib`. See
- :rfc:`7538` for details. Patch by Jochem Schulenklopper.
-
-- bpo-41374: Ensure that ``socket.TCP_*`` constants are exposed on Cygwin
- 3.1.6 and greater.
-
-- bpo-35970: Add help flag to the base64 module's command line interface.
- Patch contributed by Robert Kuska.
-
-Documentation
--------------
-
-- bpo-45726: Improve documentation for :func:`functools.singledispatch` and
- :class:`functools.singledispatchmethod`.
-
-- bpo-45680: Amend the docs on ``GenericAlias`` objects to clarify that
- non-container classes can also implement ``__class_getitem__``. Patch
- contributed by Alex Waygood.
-
-- bpo-45618: Update Sphinx version used to build the documentation to 4.2.0.
- Patch by Maciej Olko.
-
-- bpo-45655: Add a new "relevant PEPs" section to the top of the
- documentation for the ``typing`` module. Patch by Alex Waygood.
-
-- bpo-45604: Add ``level`` argument to ``multiprocessing.log_to_stderr``
- function docs.
-
-- bpo-45516: Add protocol description to the
- :class:`importlib.abc.TraversableResources` documentation.
-
-- bpo-45464: Mention in the documentation of :ref:`Built-in Exceptions
- <bltin-exceptions>` that inheriting from multiple exception types in a
- single subclass is not recommended due to possible memory layout
- incompatibility.
-
-- bpo-45449: Add note about :pep:`585` in :mod:`collections.abc`.
-
-- bpo-45516: Add protocol description to the
- :class:`importlib.abc.Traversable` documentation.
-
-- bpo-20692: Add Programming FAQ entry explaining that int literal attribute
- access requires either a space after or parentheses around the literal.
-
-Tests
------
-
-- bpo-45678: Add tests for scenarios in which
- :class:`functools.singledispatchmethod` is stacked on top of a method that
- has already been wrapped by two other decorators. Patch by Alex Waygood.
-
-- bpo-45578: Add tests for :func:`dis.distb`
-
-- bpo-45678: Add tests to ensure that ``functools.singledispatchmethod``
- correctly wraps the attributes of the target function.
-
-- bpo-45668: PGO tests now pass when Python is built without test extension
- modules.
-
-- bpo-45577: Add subtests for all ``pickle`` protocols in ``test_zoneinfo``.
-
-- bpo-45566: Fix ``test_frozen_pickle`` in ``test_dataclasses`` to check all
- ``pickle`` versions.
-
-- bpo-43592: :mod:`test.libregrtest` now raises the soft resource limit for
- the maximum number of file descriptors when the default is too low for our
- test suite as was often the case on macOS.
-
-- bpo-39679: Add more test cases for `@functools.singledispatchmethod` when
- combined with `@classmethod` or `@staticmethod`.
-
-- bpo-45410: When libregrtest spawns a worker process, stderr is now written
- into stdout to keep messages order. Use a single pipe for stdout and
- stderr, rather than two pipes. Previously, messages were out of order
- which made analysis of buildbot logs harder Patch by Victor Stinner.
-
-- bpo-45402: Fix test_tools.test_sundry() when Python is built out of tree:
- fix how the freeze_modules.py tool locates the _freeze_module program.
- Patch by Victor Stinner.
-
-- bpo-45403: Fix test_sys.test_stdlib_dir() when Python is built outside the
- source tree: compare normalized paths. Patch by Victor Stinner.
-
-- bpo-45400: Fix
- test_name_error_suggestions_do_not_trigger_for_too_many_locals() of
- test_exceptions if a directory name contains "a1" (like
- "Python-3.11.0a1"): use a stricter regular expression. Patch by Victor
- Stinner.
-
-- bpo-10572: Rename :mod:`sqlite3` tests from ``test_sqlite`` to
- ``test_sqlite3``, and relocate them to ``Lib/test/test_sqlite3``. Patch by
- Erlend E. Aasland.
-
-Build
------
-
-- bpo-43158: ``setup.py`` now uses values from configure script to build the
- ``_uuid`` extension module. Configure now detects util-linux's
- ``libuuid``, too.
-
-- bpo-45666: Fix warning of ``swprintf`` and ``%s`` usage in
- ``_testembed.c``
-
-- bpo-45548: ``Modules/Setup`` and ``Modules/makesetup`` have been improved.
- The ``Setup`` file now contains working rules for all extensions. Outdated
- comments have been removed. Rules defined by ``makesetup`` track
- dependencies correctly.
-
-- bpo-45548: The :mod:`math` and :mod:`cmath` implementation now require a
- C99 compatible ``libm`` and no longer ship with workarounds for missing
- acosh, asinh, atanh, expm1, and log1p functions.
-
-- bpo-45595: ``setup.py`` and ``makesetup`` now track build dependencies on
- all Python header files and module specific header files.
-
-- bpo-45571: ``Modules/Setup`` now use ``PY_CFLAGS_NODIST`` instead of
- ``PY_CFLAGS`` to compile shared modules.
-
-- bpo-45570: :mod:`pyexpat` and :mod:`_elementtree` no longer define
- obsolete macros ``HAVE_EXPAT_CONFIG_H`` and ``USE_PYEXPAT_CAPI``.
- ``XML_POOR_ENTROPY`` is now defined in ``expat_config.h``.
-
-- bpo-43974: ``setup.py`` no longer defines ``Py_BUILD_CORE_MODULE``.
- Instead every module, that uses the internal API, defines the macro.
-
-- bpo-45548: Fill in missing entries in Modules/Setup.
-
-- bpo-45532: Update :data:`sys.version` to use ``main`` as fallback
- information. Patch by Jeong YunWon.
-
-- bpo-45536: The ``configure`` script now checks whether OpenSSL headers and
- libraries provide required APIs. Most common APIs are verified. The check
- detects outdated or missing OpenSSL. Failures do not stop configure.
-
-- bpo-45221: Fixed regression in handling of ``LDFLAGS`` and ``CPPFLAGS``
- options where :meth:`argparse.parse_known_args` could interpret an option
- as one of the built-in command line argument, for example ``-h`` for help.
-
-- bpo-45440: Building Python now requires a C99 ``<math.h>`` header file
- providing the following functions: ``copysign()``, ``hypot()``,
- ``isfinite()``, ``isinf()``, ``isnan()``, ``round()``. Patch by Victor
- Stinner.
-
-- bpo-45405: Prevent ``internal configure error`` when running ``configure``
- with recent versions of non-Apple clang. Patch by David Bohman.
-
-- bpo-45433: Avoid linking libpython with libcrypt.
-
-Windows
--------
-
-- bpo-43652: Update Tcl/Tk to 8.6.11, actually this time. The previous
- update incorrectly included 8.6.10.
-
-- bpo-45337: venv now warns when the created environment may need to be
- accessed at a different path, due to redirections, links or junctions. It
- also now correctly installs or upgrades components when the alternate path
- is required.
-
-- bpo-43851: Build SQLite ``SQLITE_OMIT_AUTOINIT`` on Windows. Patch by
- Erlend E. Aasland.
-
-macOS
------
-
-- bpo-44828: Avoid tkinter file dialog failure on macOS 12 Monterey when
- using the Tk 8.6.11 provided by python.org macOS installers. Patch by Marc
- Culler of the Tk project.
-
-IDLE
-----
-
-- bpo-45495: Add context keywords 'case' and 'match' to completions list.
-
-C API
------
-
-- bpo-29103: :c:func:`PyType_FromSpec* <PyType_FromModuleAndSpec>` now
- copies the class name from the spec to a buffer owned by the class, so the
- original can be safely deallocated. Patch by Petr Viktorin.
-
-- bpo-45522: The internal freelists for frame, float, list, dict, async
- generators, and context objects can now be disabled.
-
-- bpo-35134: Exclude :c:func:`PyWeakref_GET_OBJECT` from the limited C API.
- It never worked since the :c:type:`PyWeakReference` structure is opaque in
- the limited C API.
-
-- bpo-35081: Move the ``interpreteridobject.h`` header file from
- ``Include/`` to ``Include/internal/``. It only provides private functions.
- Patch by Victor Stinner.
-
-- bpo-35134: The non-limited API files ``cellobject.h``, ``classobject.h``,
- ``context.h``, ``funcobject.h``, ``genobject.h`` and ``longintrepr.h``
- have been moved to the ``Include/cpython`` directory. Moreover, the
- ``eval.h`` header file was removed. These files must not be included
- directly, as they are already included in ``Python.h``: :ref:`Include
- Files <api-includes>`. If they have been included directly, consider
- including ``Python.h`` instead. Patch by Victor Stinner.
-
-- bpo-45474: The following items are no longer available when
- ``Py_LIMITED_API`` is defined:
-
- * :c:func:`PyMarshal_WriteLongToFile`
- * :c:func:`PyMarshal_WriteObjectToFile`
- * :c:func:`PyMarshal_ReadObjectFromString`
- * :c:func:`PyMarshal_WriteObjectToString`
- * the ``Py_MARSHAL_VERSION`` macro
-
- These are not part of the :ref:`limited API <stable-abi-list>`.
-
- Patch by Victor Stinner.
-
-- bpo-45434: Remove the ``pystrhex.h`` header file. It only contains private
- functions. C extensions should only include the main ``<Python.h>`` header
- file. Patch by Victor Stinner.
-
-- bpo-45440: Remove the ``Py_FORCE_DOUBLE()`` macro. It was used by the
- ``Py_IS_INFINITY()`` macro. Patch by Victor Stinner.
-
-- bpo-45434: ``<Python.h>`` no longer includes the header files
- ``<stdlib.h>``, ``<stdio.h>``, ``<errno.h>`` and ``<string.h>`` when the
- ``Py_LIMITED_API`` macro is set to ``0x030b0000`` (Python 3.11) or higher.
- C extensions should explicitly include the header files after ``#include
- <Python.h>``. Patch by Victor Stinner.
-
-- bpo-41123: Remove ``Py_UNICODE_COPY()`` and ``Py_UNICODE_FILL()`` macros,
- deprecated since Python 3.3. Use ``PyUnicode_CopyCharacters()`` or
- ``memcpy()`` (``wchar_t*`` string), and ``PyUnicode_Fill()`` functions
- instead. Patch by Victor Stinner.
-
-- bpo-45412: Remove the following math macros using the ``errno`` variable:
-
- * ``Py_ADJUST_ERANGE1()``
- * ``Py_ADJUST_ERANGE2()``
- * ``Py_OVERFLOWED()``
- * ``Py_SET_ERANGE_IF_OVERFLOW()``
- * ``Py_SET_ERRNO_ON_MATH_ERROR()``
-
- Patch by Victor Stinner.
-
-- bpo-45395: Custom frozen modules (the array set to
- ``PyImport_FrozenModules``) are now treated as additions, rather than
- replacing all the default frozen modules. Frozen stdlib modules can still
- be disabled by setting the "code" field of the custom array entry to NULL.
-
-- bpo-43760: Add new :c:func:`PyThreadState_EnterTracing`, and
- :c:func:`PyThreadState_LeaveTracing` functions to the limited C API to
- suspend and resume tracing and profiling. Patch by Victor Stinner.
-
-- bpo-44220: :c:var:`PyStructSequence_UnnamedField` is added to the Stable
- ABI.
-
-
-What's New in Python 3.11.0 alpha 1?
-====================================
-
-*Release date: 2021-10-05*
-
-Security
---------
-
-- bpo-42278: Replaced usage of :func:`tempfile.mktemp` with
- :class:`~tempfile.TemporaryDirectory` to avoid a potential race condition.
-
-- bpo-44600: Fix incorrect line numbers while tracing some failed patterns
- in :ref:`match <match>` statements. Patch by Charles Burkland.
-
-- bpo-41180: Add auditing events to the :mod:`marshal` module, and stop
- raising ``code.__init__`` events for every unmarshalled code object.
- Directly instantiated code objects will continue to raise an event, and
- audit event handlers should inspect or collect the raw marshal data. This
- reduces a significant performance overhead when loading from ``.pyc``
- files.
-
-- bpo-44394: Update the vendored copy of libexpat to 2.4.1 (from 2.2.8) to
- get the fix for the CVE-2013-0340 "Billion Laughs" vulnerability. This
- copy is most used on Windows and macOS.
-
-- bpo-43124: Made the internal ``putcmd`` function in :mod:`smtplib`
- sanitize input for presence of ``\r`` and ``\n`` characters to avoid
- (unlikely) command injection.
-
-- bpo-44022: :mod:`http.client` now avoids infinitely reading potential HTTP
- headers after a ``100 Continue`` status response from the server.
-
-Core and Builtins
------------------
-
-- bpo-43760: The number of hardware branches per instruction dispatch is
- reduced from two to one by adding a special instruction for tracing. Patch
- by Mark Shannon.
-
-- bpo-45061: Add a deallocator to the bool type to detect refcount bugs in C
- extensions which call Py_DECREF(Py_True) or Py_DECREF(Py_False) by
- mistake. Detect also refcount bugs when the empty tuple singleton or the
- Unicode empty string singleton is destroyed by mistake. Patch by Victor
- Stinner.
-
-- bpo-24076: sum() was further optimised for summing up single digit
- integers.
-
-- bpo-45190: Update Unicode databases to Unicode 14.0.0.
-
-- bpo-45167: Fix deepcopying of :class:`types.GenericAlias` objects.
-
-- bpo-45155: :meth:`int.to_bytes` and :meth:`int.from_bytes` now take a
- default value of ``"big"`` for the ``byteorder`` argument.
- :meth:`int.to_bytes` also takes a default value of ``1`` for the
- ``length`` argument.
-
-- bpo-44219: Release the GIL while performing ``isatty`` system calls on
- arbitrary file descriptors. In particular, this affects :func:`os.isatty`,
- :func:`os.device_encoding` and :class:`io.TextIOWrapper`. By extension,
- :func:`io.open` in text mode is also affected. This change solves a
- deadlock in :func:`os.isatty`. Patch by Vincent Michel in :issue:`44219`.
-
-- bpo-44959: Added fallback to extension modules with '.sl' suffix on HP-UX
-
-- bpo-45121: Fix issue where ``Protocol.__init__`` raises ``RecursionError``
- when it's called directly or via ``super()``. Patch provided by Yurii
- Karabas.
-
-- bpo-44348: The deallocator function of the :exc:`BaseException` type now
- uses the trashcan mechanism to prevent stack overflow. For example, when a
- :exc:`RecursionError` instance is raised, it can be linked to another
- RecursionError through the ``__context__`` attribute or the
- ``__traceback__`` attribute, and then a chain of exceptions is created.
- When the chain is destroyed, nested deallocator function calls can crash
- with a stack overflow if the chain is too long compared to the available
- stack memory. Patch by Victor Stinner.
-
-- bpo-45123: Fix PyAiter_Check to only check for the __anext__ presence (not
- for __aiter__). Rename PyAiter_Check to PyAIter_Check, PyObject_GetAiter
- -> PyObject_GetAIter.
-
-- bpo-1514420: Interpreter no longer attempts to open files with names in
- angle brackets (like "<string>" or "<stdin>") when formatting an
- exception.
-
-- bpo-41031: Match C and Python code formatting of unprintable exceptions
- and exceptions in the :mod:`__main__` module.
-
-- bpo-37330: :func:`open`, :func:`io.open`, :func:`codecs.open` and
- :class:`fileinput.FileInput` no longer accept ``'U'`` ("universal
- newline") in the file mode. This flag was deprecated since Python 3.3.
- Patch by Victor Stinner.
-
-- bpo-45083: When the interpreter renders an exception, its name now has a
- complete qualname. Previously only the class name was concatenated to the
- module name, which sometimes resulted in an incorrect full name being
- displayed.
-
- (This issue impacted only the C code exception rendering, the
- :mod:`traceback` module was using qualname already).
-
-- bpo-34561: List sorting now uses the merge-ordering strategy from Munro
- and Wild's ``powersort()``. Unlike the former strategy, this is provably
- near-optimal in the entropy of the distribution of run lengths. Most uses
- of ``list.sort()`` probably won't see a significant time difference, but
- may see significant improvements in cases where the former strategy was
- exceptionally poor. However, as these are all fast linear-time
- approximations to a problem that's inherently at best quadratic-time to
- solve truly optimally, it's also possible to contrive cases where the
- former strategy did better.
-
-- bpo-45056: Compiler now removes trailing unused constants from co_consts.
-
-- bpo-45020: Add a new command line option, "-X frozen_modules=[on|off]" to
- opt out of (or into) using optional frozen modules. This defaults to "on"
- (or "off" if it's running out of the source tree).
-
-- bpo-45012: In :mod:`posix`, release GIL during ``stat()``, ``lstat()``,
- and ``fstatat()`` syscalls made by :func:`os.DirEntry.stat`. Patch by
- Stanisław Skonieczny.
-
-- bpo-45018: Fixed pickling of range iterators that iterated for over
- ``2**32`` times.
-
-- bpo-45000: A :exc:`SyntaxError` is now raised when trying to delete
- :const:`__debug__`. Patch by Dong-hee Na.
-
-- bpo-44963: Implement ``send()`` and ``throw()`` methods for
- ``anext_awaitable`` objects. Patch by Pablo Galindo.
-
-- bpo-44962: Fix a race in WeakKeyDictionary, WeakValueDictionary and
- WeakSet when two threads attempt to commit the last pending removal. This
- fixes asyncio.create_task and fixes a data loss in asyncio.run where
- shutdown_asyncgens is not run
-
-- bpo-24234: Implement the :meth:`__bytes__` special method on the
- :class:`bytes` type, so a bytes object ``b`` passes an ``isinstance(b,
- typing.SupportsBytes)`` check.
-
-- bpo-24234: Implement the :meth:`__complex__` special method on the
- :class:`complex` type, so a complex number ``z`` passes an ``isinstance(z,
- typing.SupportsComplex)`` check.
-
-- bpo-44954: Fixed a corner case bug where the result of
- ``float.fromhex('0x.8p-1074')`` was rounded the wrong way.
-
-- bpo-44947: Refine the syntax error for trailing commas in import
- statements. Patch by Pablo Galindo.
-
-- bpo-44945: Specialize the BINARY_ADD instruction using the PEP 659
- machinery. Adds five new instructions:
-
- * BINARY_ADD_ADAPTIVE
- * BINARY_ADD_FLOAT
- * BINARY_ADD_INT
- * BINARY_ADD_UNICODE
- * BINARY_ADD_UNICODE_INPLACE_FAST
-
-- bpo-44929: Fix some edge cases of ``enum.Flag`` string representation in
- the REPL. Patch by Pablo Galindo.
-
-- bpo-44914: Class version tags are no longer recycled.
-
- This means that a version tag serves as a unique identifier for the state
- of a class. We rely on this for effective specialization of the LOAD_ATTR
- and other instructions.
-
-- bpo-44698: Restore behaviour of complex exponentiation with integer-valued
- exponent of type :class:`float` or :class:`complex`.
-
-- bpo-44895: A debug variable :envvar:`PYTHONDUMPREFSFILE` is added for
- creating a dump file which is generated by :option:`--with-trace-refs`.
- Patch by Dong-hee Na.
-
-- bpo-44900: Add five superinstructions for PEP 659 quickening:
-
- * LOAD_FAST LOAD_FAST
- * STORE_FAST LOAD_FAST
- * LOAD_FAST LOAD_CONST
- * LOAD_CONST LOAD_FAST
- * STORE_FAST STORE_FAST
-
-- bpo-44889: Initial implementation of adaptive specialization of
- ``LOAD_METHOD``. The following specialized forms were added:
-
- * ``LOAD_METHOD_CACHED``
-
- * ``LOAD_METHOD_MODULE``
-
- * ``LOAD_METHOD_CLASS``
-
-- bpo-44890: Specialization stats are always collected in debug builds.
-
-- bpo-44885: Correct the ast locations of f-strings with format specs and
- repeated expressions. Patch by Pablo Galindo
-
-- bpo-44878: Remove the loop from the bytecode interpreter. All instructions
- end with a DISPATCH macro, so the loop is now redundant.
-
-- bpo-44878: Remove switch statement for interpreter loop when using
- computed gotos. This makes sure that we only have one dispatch table in
- the interpreter.
-
-- bpo-44874: Deprecate the old trashcan macros
- (``Py_TRASHCAN_SAFE_BEGIN``/``Py_TRASHCAN_SAFE_END``). They should be
- replaced by the new macros ``Py_TRASHCAN_BEGIN`` and ``Py_TRASHCAN_END``.
-
-- bpo-44872: Use new trashcan macros (Py_TRASHCAN_BEGIN/END) in
- frameobject.c instead of the old ones (Py_TRASHCAN_SAFE_BEGIN/END).
-
-- bpo-33930: Fix segmentation fault with deep recursion when cleaning method
- objects. Patch by Augusto Goulart and Pablo Galindo.
-
-- bpo-25782: Fix bug where ``PyErr_SetObject`` hangs when the current
- exception has a cycle in its context chain.
-
-- bpo-44856: Fix reference leaks in the error paths of ``update_bases()``
- and ``__build_class__``. Patch by Pablo Galindo.
-
-- bpo-44826: Initial implementation of adaptive specialization of STORE_ATTR
-
- Three specialized forms of STORE_ATTR are added:
-
- * STORE_ATTR_SLOT
-
- * STORE_ATTR_SPLIT_KEYS
-
- * STORE_ATTR_WITH_HINT
-
-- bpo-44838: Fixed a bug that was causing the parser to raise an incorrect
- custom :exc:`SyntaxError` for invalid 'if' expressions. Patch by Pablo
- Galindo.
-
-- bpo-44821: Create instance dictionaries (__dict__) eagerly, to improve
- regularity of object layout and assist specialization.
-
-- bpo-44792: Improve syntax errors for if expressions. Patch by Miguel Brito
-
-- bpo-34013: Generalize the invalid legacy statement custom error message
- (like the one generated when "print" is called without parentheses) to
- include more generic expressions. Patch by Pablo Galindo
-
-- bpo-44732: Rename ``types.Union`` to ``types.UnionType``.
-
-- bpo-44725: Expose specialization stats in python via
- :func:`_opcode.get_specialization_stats`.
-
-- bpo-44717: Improve AttributeError on circular imports of submodules.
-
-- bpo-44698: Fix undefined behaviour in complex object exponentiation.
-
-- bpo-44653: Support :mod:`typing` types in parameter substitution in the
- union type.
-
-- bpo-44676: Add ability to serialise ``types.Union`` objects. Patch
- provided by Yurii Karabas.
-
-- bpo-44633: Parameter substitution of the union type with wrong types now
- raises ``TypeError`` instead of returning ``NotImplemented``.
-
-- bpo-44661: Update ``property_descr_set`` to use vectorcall if possible.
- Patch by Dong-hee Na.
-
-- bpo-44662: Add ``__module__`` to ``types.Union``. This also fixes
- ``types.Union`` issues with ``typing.Annotated``. Patch provided by Yurii
- Karabas.
-
-- bpo-44655: Include the name of the type in unset __slots__ attribute
- errors. Patch by Pablo Galindo
-
-- bpo-44655: Don't include a missing attribute with the same name as the
- failing one when offering suggestions for missing attributes. Patch by
- Pablo Galindo
-
-- bpo-44646: Fix the hash of the union type: it no longer depends on the
- order of arguments.
-
-- bpo-44636: Collapse union of equal types. E.g. the result of ``int | int``
- is now ``int``. Fix comparison of the union type with non-hashable
- objects. E.g. ``int | str == {}`` no longer raises a TypeError.
-
-- bpo-44611: On Windows, :func:`os.urandom`: uses BCryptGenRandom API
- instead of CryptGenRandom API which is deprecated from Microsoft Windows
- API. Patch by Dong-hee Na.
-
-- bpo-44635: Convert ``None`` to ``type(None)`` in the union type
- constructor.
-
-- bpo-26280: Implement adaptive specialization for BINARY_SUBSCR
-
- Three specialized forms of BINARY_SUBSCR are added:
-
- * BINARY_SUBSCR_LIST_INT
-
- * BINARY_SUBSCR_TUPLE_INT
-
- * BINARY_SUBSCR_DICT
-
-- bpo-44589: Mapping patterns in ``match`` statements with two or more equal
- literal keys will now raise a :exc:`SyntaxError` at compile-time.
-
-- bpo-44606: Fix ``__instancecheck__`` and ``__subclasscheck__`` for the
- union type.
-
-- bpo-42073: The ``@classmethod`` decorator can now wrap other
- classmethod-like descriptors.
-
-- bpo-41972: Tuned the string-searching algorithm of fastsearch.h to have a
- shorter inner loop for most cases.
-
-- bpo-44590: All necessary data for executing a Python function (local
- variables, stack, etc) is now kept in a per-thread stack. Frame objects
- are lazily allocated on demand. This increases performance by about 7% on
- the standard benchmark suite. Introspection and debugging are unaffected
- as frame objects are always available when needed. Patch by Mark Shannon.
-
-- bpo-44584: The threading debug (:envvar:`PYTHONTHREADDEBUG` environment
- variable) is deprecated in Python 3.10 and will be removed in Python 3.12.
- This feature requires a debug build of Python. Patch by Victor Stinner.
-
-- bpo-43895: An obsolete internal cache of shared object file handles added
- in 1995 that attempted, but did not guarantee, that a .so would not be
- dlopen'ed twice to work around flaws in mid-1990s posix-ish operating
- systems has been removed from dynload_shlib.c.
-
-- bpo-44490: :mod:`typing` now searches for type parameters in
- ``types.Union`` objects. ``get_type_hints`` will also properly resolve
- annotations with nested ``types.Union`` objects. Patch provided by Yurii
- Karabas.
-
-- bpo-43950: Code objects can now provide the column information for
- instructions when available. This is levaraged during traceback printing
- to show the expressions responsible for errors.
-
- Contributed by Pablo Galindo, Batuhan Taskaya and Ammar Askar as part of
- :pep:`657`.
-
-- bpo-44562: Remove uses of :c:func:`PyObject_GC_Del` in error path when
- initializing :class:`types.GenericAlias`.
-
-- bpo-41486: Fix a memory consumption and copying performance regression in
- earlier 3.10 beta releases if someone used an output buffer larger than
- 4GiB with zlib.decompress on input data that expands that large.
-
-- bpo-43908: Heap types with the :const:`Py_TPFLAGS_IMMUTABLETYPE` flag can
- now inherit the :pep:`590` vectorcall protocol. Previously, this was only
- possible for :ref:`static types <static-types>`. Patch by Erlend E.
- Aasland.
-
-- bpo-44553: Implement GC methods for ``types.Union`` to break reference
- cycles and prevent memory leaks.
-
-- bpo-44490: Add ``__parameters__`` attribute and ``__getitem__`` operator
- to ``types.Union``. Patch provided by Yurii Karabas.
-
-- bpo-44523: Remove the pass-through for :func:`hash` of
- :class:`weakref.proxy` objects to prevent unintended consequences when the
- original referred object dies while the proxy is part of a hashable
- object. Patch by Pablo Galindo.
-
-- bpo-44483: Fix a crash in ``types.Union`` objects when creating a union of
- an object with bad ``__module__`` field.
-
-- bpo-44486: Modules will always have a dictionary, even when created by
- ``types.ModuleType.__new__()``
-
-- bpo-44472: Fix ltrace functionality when exceptions are raised. Patch by
- Pablo Galindo
-
-- bpo-12022: A :exc:`TypeError` is now raised instead of an
- :exc:`AttributeError` in :keyword:`with` and :keyword:`async with`
- statements for objects which do not support the :term:`context manager` or
- :term:`asynchronous context manager` protocols correspondingly.
-
-- bpo-44297: Make sure that the line number is set when entering a
- comprehension scope. Ensures that backtraces inclusing generator
- expressions show the correct line number.
-
-- bpo-44456: Improve the syntax error when mixing positional and keyword
- patterns. Patch by Pablo Galindo.
-
-- bpo-44409: Fix error location information for tokenizer errors raised on
- initialization of the tokenizer. Patch by Pablo Galindo.
-
-- bpo-44396: Fix a possible crash in the tokenizer when raising syntax
- errors for unclosed strings. Patch by Pablo Galindo.
-
-- bpo-44376: Exact integer exponentiation (like ``i**2`` or ``pow(i, 2)``)
- with a small exponent is much faster, due to reducing overhead in such
- cases.
-
-- bpo-44313: Directly imported objects and modules (through import and from
- import statements) don't generate ``LOAD_METHOD``/``CALL_METHOD`` for
- directly accessed objects on their namespace. They now use the regular
- ``LOAD_ATTR``/``CALL_FUNCTION``.
-
-- bpo-44338: Implement adaptive specialization for LOAD_GLOBAL
-
- Two specialized forms of LOAD_GLOBAL are added:
-
- * LOAD_GLOBAL_MODULE
-
- * LOAD_GLOBAL_BUILTIN
-
-- bpo-44368: Improve syntax errors for invalid "as" targets. Patch by Pablo
- Galindo
-
-- bpo-44349: Fix an edge case when displaying text from files with encoding
- in syntax errors. Patch by Pablo Galindo.
-
-- bpo-44337: Initial implementation of adaptive specialization of LOAD_ATTR
-
- Four specialized forms of LOAD_ATTR are added:
-
- * LOAD_ATTR_SLOT
-
- * LOAD_ATTR_SPLIT_KEYS
-
- * LOAD_ATTR_WITH_HINT
-
- * LOAD_ATTR_MODULE
-
-- bpo-44335: Fix a regression when identifying incorrect characters in
- syntax errors. Patch by Pablo Galindo
-
-- bpo-43693: Computation of the offsets of cell variables is done in the
- compiler instead of at runtime. This reduces the overhead of handling cell
- and free variables, especially in the case where a variable is both an
- argument and cell variable.
-
-- bpo-44317: Improve tokenizer error with improved locations. Patch by Pablo
- Galindo.
-
-- bpo-44304: Fix a crash in the :mod:`sqlite3` module that happened when the
- garbage collector clears :class:`sqlite.Statement` objects. Patch by Pablo
- Galindo
-
-- bpo-44305: Improve error message for ``try`` blocks without ``except`` or
- ``finally`` blocks. Patch by Pablo Galindo.
-
-- bpo-43413: Constructors of subclasses of some builtin classes (e.g.
- :class:`tuple`, :class:`list`, :class:`frozenset`) no longer accept
- arbitrary keyword arguments. [reverted in 3.11a4] Subclass of :class:`set`
- can now define a ``__new__()`` method with additional keyword parameters
- without overriding also ``__init__()``.
-
-- bpo-43667: Improve Unicode support in non-UTF locales on Oracle Solaris.
- This issue does not affect other Solaris systems.
-
-- bpo-43693: A new opcode MAKE_CELL has been added that effectively moves
- some of the work done on function entry into the compiler and into the
- eval loop. In addition to creating the required cell objects, the new
- opcode converts relevant arguments (and other locals) to cell variables on
- function entry.
-
-- bpo-44232: Fix a regression in :func:`type` when a metaclass raises an
- exception. The C function :c:func:`type_new` must properly report the
- exception when a metaclass constructor raises an exception and the winner
- class is not the metaclass. Patch by Victor Stinner.
-
-- bpo-44201: Avoid side effects of checking for specialized syntax errors in
- the REPL that was causing it to ask for extra tokens after a syntax error
- had been detected. Patch by Pablo Galindo
-
-- bpo-43693: ``PyCodeObject`` gained ``co_fastlocalnames`` and
- ``co_fastlocalkinds`` as the authoritative source of fast locals info.
- Marshaled code objects have changed accordingly.
-
-- bpo-44184: Fix a crash at Python exit when a deallocator function removes
- the last strong reference to a heap type. Patch by Victor Stinner.
-
-- bpo-44187: Implement quickening in the interpreter. This offers no
- advantages as yet, but is an enabler of future optimizations. See PEP 659
- for full explanation.
-
-- bpo-44180: The parser doesn't report generic syntax errors that happen in
- a position further away that the one it reached in the first pass. Patch
- by Pablo Galindo
-
-- bpo-44168: Fix error message in the parser involving keyword arguments
- with invalid expressions. Patch by Pablo Galindo
-
-- bpo-44156: String caches in ``compile.c`` are now subinterpreter
- compatible.
-
-- bpo-44143: Fixed a crash in the parser that manifest when raising
- tokenizer errors when an existing exception was present. Patch by Pablo
- Galindo.
-
-- bpo-44032: Move 'fast' locals and other variables from the frame object to
- a per-thread datastack.
-
-- bpo-44114: Fix incorrect dictkeys_reversed and dictitems_reversed function
- signatures in C code, which broke webassembly builds.
-
-- bpo-44110: Improve :func:`str.__getitem__` error message
-
-- bpo-26110: Add ``CALL_METHOD_KW`` opcode to speed up method calls with
- keyword arguments. Idea originated from PyPy. A side effect is executing
- ``CALL_METHOD`` is now branchless in the evaluation loop.
-
-- bpo-28307: Compiler now optimizes simple C-style formatting with literal
- format containing only format codes %s, %r and %a by converting them to
- f-string expressions.
-
-- bpo-43149: Correct the syntax error message regarding multiple exception
- types to not refer to "exception groups". Patch by Pablo Galindo
-
-- bpo-43822: The parser will prioritize tokenizer errors over custom syntax
- errors when raising exceptions. Patch by Pablo Galindo.
-
-- bpo-40222: "Zero cost" exception handling.
-
- * Uses a lookup table to determine how to handle exceptions.
- * Removes SETUP_FINALLY and POP_TOP block instructions, eliminating the runtime overhead of try statements.
- * Reduces the size of the frame object by about 60%.
-
- Patch by Mark Shannon
-
-- bpo-43918: Document the signature and ``default`` argument in the
- docstring of the new ``anext`` builtin.
-
-- bpo-43833: Emit a deprecation warning if the numeric literal is
- immediately followed by one of keywords: and, else, for, if, in, is, or.
- Raise a syntax error with more informative message if it is immediately
- followed by other keyword or identifier.
-
-- bpo-43879: Add native_thread_id to PyThreadState. Patch by Gabriele N.
- Tornetta.
-
-- bpo-43693: Compute cell offsets relative to locals in compiler. Allows the
- interpreter to treats locals and cells a single array, which is slightly
- more efficient. Also make the LOAD_CLOSURE opcode an alias for LOAD_FAST.
- Preserving LOAD_CLOSURE helps keep bytecode a bit more readable.
-
-- bpo-17792: More accurate error messages for access of unbound locals or
- free vars.
-
-- bpo-28146: Fix a confusing error message in :func:`str.format`.
-
-- bpo-11105: When compiling :class:`ast.AST` objects with recursive
- references through :func:`compile`, the interpreter doesn't crash anymore
- instead it raises a :exc:`RecursionError`.
-
-- bpo-39091: Fix crash when using passing a non-exception to a generator's
- ``throw()`` method. Patch by Noah Oxer
-
-- bpo-33346: Asynchronous comprehensions are now allowed inside
- comprehensions in asynchronous functions. Outer comprehensions implicitly
- become asynchronous.
-
-Library
--------
-
-- bpo-45371: Fix clang rpath issue in :mod:`distutils`. The UnixCCompiler
- now uses correct clang option to add a runtime library directory (rpath)
- to a shared library.
-
-- bpo-45329: Fix freed memory access in :class:`pyexpat.xmlparser` when
- building it with an installed expat library <= 2.2.0.
-
-- bpo-41710: On Unix, if the ``sem_clockwait()`` function is available in
- the C library (glibc 2.30 and newer), the :meth:`threading.Lock.acquire`
- method now uses the monotonic clock (:data:`time.CLOCK_MONOTONIC`) for the
- timeout, rather than using the system clock (:data:`time.CLOCK_REALTIME`),
- to not be affected by system clock changes. Patch by Victor Stinner.
-
-- bpo-1596321: Fix the :func:`threading._shutdown` function when the
- :mod:`threading` module was imported first from a thread different than
- the main thread: no longer log an error at Python exit.
-
-- bpo-45274: Fix a race condition in the :meth:`Thread.join()
- <threading.Thread.join>` method of the :mod:`threading` module. If the
- function is interrupted by a signal and the signal handler raises an
- exception, make sure that the thread remains in a consistent state to
- prevent a deadlock. Patch by Victor Stinner.
-
-- bpo-21302: In Unix operating systems, :func:`time.sleep` now uses the
- ``nanosleep()`` function, if ``clock_nanosleep()`` is not available but
- ``nanosleep()`` is available. ``nanosleep()`` allows to sleep with
- nanosecond precision.
-
-- bpo-21302: On Windows, :func:`time.sleep` now uses a waitable timer which
- has a resolution of 100 nanoseconds (10\ :sup:`-7` seconds). Previously,
- it had a resolution of 1 millisecond (10\ :sup:`-3` seconds). Patch by
- Benjamin Szőke and Victor Stinner.
-
-- bpo-45238: Fix :meth:`unittest.IsolatedAsyncioTestCase.debug`: it runs now
- asynchronous methods and callbacks.
-
-- bpo-36674: :meth:`unittest.TestCase.debug` raises now a
- :class:`unittest.SkipTest` if the class or the test method are decorated
- with the skipping decorator.
-
-- bpo-45235: Fix an issue where argparse would not preserve values in a
- provided namespace when using a subparser with defaults.
-
-- bpo-45183: Have zipimport.zipimporter.find_spec() not raise an exception
- when the underlying zip file has been deleted and the internal cache has
- been reset via invalidate_cache().
-
-- bpo-45234: Fixed a regression in :func:`~shutil.copyfile`,
- :func:`~shutil.copy`, :func:`~shutil.copy2` raising
- :exc:`FileNotFoundError` when source is a directory, which should raise
- :exc:`IsADirectoryError`
-
-- bpo-45228: Fix stack buffer overflow in parsing J1939 network address.
-
-- bpo-45225: use map function instead of genexpr in capwords.
-
-- bpo-42135: Fix typo: ``importlib.find_loader`` is really slated for
- removal in Python 3.12 not 3.10, like the others in PR 25169.
-
- Patch by Hugo van Kemenade.
-
-- bpo-20524: Improves error messages on ``.format()`` operation for ``str``,
- ``float``, ``int``, and ``complex``. New format now shows the problematic
- pattern and the object type.
-
-- bpo-45168: Change :func:`dis.dis` output to omit op arg values that cannot
- be resolved due to ``co_consts``, ``co_names`` etc not being provided.
- Previously the oparg itself was repeated in the value field, which is not
- useful and can be confusing.
-
-- bpo-21302: In Unix operating systems, :func:`time.sleep` now uses the
- ``clock_nanosleep()`` function, if available, which allows to sleep for an
- interval specified with nanosecond precision.
-
-- bpo-45173: Remove from the :mod:`configparser` module: the
- :class:`SafeConfigParser` class, the :attr:`filename` property of the
- :class:`ParsingError` class, the :meth:`readfp` method of the
- :class:`ConfigParser` class, deprecated since Python 3.2.
-
- Patch by Hugo van Kemenade.
-
-- bpo-44987: Pure ASCII strings are now normalized in constant time by
- :func:`unicodedata.normalize`. Patch by Dong-hee Na.
-
-- bpo-35474: Calling :func:`mimetypes.guess_all_extensions` with
- ``strict=False`` no longer affects the result of the following call with
- ``strict=True``. Also, mutating the returned list no longer affects the
- global state.
-
-- bpo-45166: :func:`typing.get_type_hints` now works with
- :data:`~typing.Final` wrapped in :class:`~typing.ForwardRef`.
-
-- bpo-45162: Remove many old deprecated :mod:`unittest` features:
-
- * "``fail*``" and "``assert*``" aliases of :class:`~unittest.TestCase` methods.
- * Broken from start :class:`~unittest.TestCase` method ``assertDictContainsSubset()``.
- * Ignored :meth:`<unittest.TestLoader.loadTestsFromModule> TestLoader.loadTestsFromModule` parameter *use_load_tests*.
- * Old alias ``_TextTestResult`` of :class:`~unittest.TextTestResult`.
-
-- bpo-38371: Remove the deprecated ``split()`` method of
- :class:`_tkinter.TkappType`. Patch by Erlend E. Aasland.
-
-- bpo-20499: Improve the speed and accuracy of statistics.pvariance().
-
-- bpo-45132: Remove :meth:`__getitem__` methods of
- :class:`xml.dom.pulldom.DOMEventStream`, :class:`wsgiref.util.FileWrapper`
- and :class:`fileinput.FileInput`, deprecated since Python 3.9.
-
- Patch by Hugo van Kemenade.
-
-- bpo-45129: Due to significant security concerns, the *reuse_address*
- parameter of :meth:`asyncio.loop.create_datagram_endpoint`, disabled in
- Python 3.9, is now entirely removed. This is because of the behavior of
- the socket option ``SO_REUSEADDR`` in UDP.
-
- Patch by Hugo van Kemenade.
-
-- bpo-45124: The ``bdist_msi`` command, deprecated in Python 3.9, is now
- removed.
-
- Use ``bdist_wheel`` (wheel packages) instead.
-
- Patch by Hugo van Kemenade.
-
-- bpo-30856: :class:`unittest.TestResult` methods
- :meth:`~unittest.TestResult.addFailure`,
- :meth:`~unittest.TestResult.addError`,
- :meth:`~unittest.TestResult.addSkip` and
- :meth:`~unittest.TestResult.addSubTest` are now called immediately after
- raising an exception in test or finishing a subtest. Previously they were
- called only after finishing the test clean up.
-
-- bpo-45034: Changes how error is formatted for ``struct.pack`` with ``'H'``
- and ``'h'`` modes and too large / small numbers. Now it shows the actual
- numeric limits, while previously it was showing arithmetic expressions.
-
-- bpo-25894: :mod:`unittest` now always reports skipped and failed subtests
- separately: separate characters in default mode and separate lines in
- verbose mode. Also the test description is now output for errors in test
- method, class and module cleanups.
-
-- bpo-45081: Fix issue when dataclasses that inherit from
- ``typing.Protocol`` subclasses have wrong ``__init__``. Patch provided by
- Yurii Karabas.
-
-- bpo-45085: The ``binhex`` module, deprecated in Python 3.9, is now
- removed. The following :mod:`binascii` functions, deprecated in Python
- 3.9, are now also removed:
-
- * ``a2b_hqx()``, ``b2a_hqx()``;
- * ``rlecode_hqx()``, ``rledecode_hqx()``.
-
- The :func:`binascii.crc_hqx` function remains available.
-
- Patch by Victor Stinner.
-
-- bpo-40360: The :mod:`lib2to3` package is now deprecated and may not be
- able to parse Python 3.10 or newer. See the :pep:`617` (New PEG parser for
- CPython). Patch by Victor Stinner.
-
-- bpo-45075: Rename :meth:`traceback.StackSummary.format_frame` to
- :meth:`traceback.StackSummary.format_frame_summary`. This method was added
- for 3.11 so it was not released yet.
-
- Updated code and docs to better distinguish frame and FrameSummary.
-
-- bpo-31299: Add option to completely drop frames from a traceback by
- returning ``None`` from a :meth:`~traceback.StackSummary.format_frame`
- override.
-
-- bpo-41620: :meth:`~unittest.TestCase.run` now always return a
- :class:`~unittest.TestResult` instance. Previously it returned ``None`` if
- the test class or method was decorated with a skipping decorator.
-
-- bpo-45021: Fix a potential deadlock at shutdown of forked children when
- using :mod:`concurrent.futures` module
-
-- bpo-43913: Fix bugs in cleaning up classes and modules in :mod:`unittest`:
-
- * Functions registered with :func:`~unittest.addModuleCleanup` were not called unless the user defines ``tearDownModule()`` in their test module.
- * Functions registered with :meth:`~unittest.TestCase.addClassCleanup` were not called if ``tearDownClass`` is set to ``None``.
- * Buffering in :class:`~unittest.TestResult` did not work with functions registered with ``addClassCleanup()`` and ``addModuleCleanup()``.
- * Errors in functions registered with ``addClassCleanup()`` and ``addModuleCleanup()`` were not handled correctly in buffered and debug modes.
- * Errors in ``setUpModule()`` and functions registered with ``addModuleCleanup()`` were reported in wrong order.
- * And several lesser bugs.
-
-- bpo-45030: Fix integer overflow in pickling and copying the range
- iterator.
-
-- bpo-45001: Made email date parsing more robust against malformed input,
- namely a whitespace-only ``Date:`` header. Patch by Wouter Bolsterlee.
-
-- bpo-45010: Remove support of special method ``__div__`` in
- :mod:`unittest.mock`. It is not used in Python 3.
-
-- bpo-39218: Improve accuracy of variance calculations by using ``x*x``
- instead of ``x**2``.
-
-- bpo-43613: Improve the speed of :func:`gzip.compress` and
- :func:`gzip.decompress` by compressing and decompressing at once in memory
- instead of in a streamed fashion.
-
-- bpo-37596: Ensure that :class:`set` and :class:`frozenset` objects are
- always :mod:`marshalled <marshal>` reproducibly.
-
-- bpo-44019: A new function ``operator.call`` has been added, such that
- ``operator.call(obj, *args, **kwargs) == obj(*args, **kwargs)``.
-
-- bpo-42255: :class:`webbrowser.MacOSX` is deprecated and will be removed in
- Python 3.13. It is untested and undocumented and also not used by
- webbrowser itself. Patch by Dong-hee Na.
-
-- bpo-44955: Method :meth:`~unittest.TestResult.stopTestRun` is now always
- called in pair with method :meth:`~unittest.TestResult.startTestRun` for
- :class:`~unittest.TestResult` objects implicitly created in
- :meth:`~unittest.TestCase.run`. Previously it was not called for test
- methods and classes decorated with a skipping decorator.
-
-- bpo-39039: tarfile.open raises :exc:`~tarfile.ReadError` when a zlib error
- occurs during file extraction.
-
-- bpo-44935: :mod:`subprocess` on Solaris now also uses
- :func:`os.posix_spawn()` for better performance.
-
-- bpo-44911: :class:`~unittest.IsolatedAsyncioTestCase` will no longer throw
- an exception while cancelling leaked tasks. Patch by Bar Harel.
-
-- bpo-41322: Added ``DeprecationWarning`` for tests and async tests that
- return a value!=None (as this may indicate an improperly written test, for
- example a test written as a generator function).
-
-- bpo-44524: Make exception message more useful when subclass from typing
- special form alias. Patch provided by Yurii Karabas.
-
-- bpo-38956: :class:`argparse.BooleanOptionalAction`'s default value is no
- longer printed twice when used with
- :class:`argparse.ArgumentDefaultsHelpFormatter`.
-
-- bpo-44860: Fix the ``posix_user`` scheme in :mod:`sysconfig` to not depend
- on :data:`sys.platlibdir`.
-
-- bpo-44859: Improve error handling in :mod:`sqlite3` and raise more
- accurate exceptions.
-
- * :exc:`MemoryError` is now raised instead of :exc:`sqlite3.Warning` when memory is not enough for encoding a statement to UTF-8 in ``Connection.__call__()`` and ``Cursor.execute()``.
- * :exc:`UnicodEncodeError` is now raised instead of :exc:`sqlite3.Warning` when the statement contains surrogate characters in ``Connection.__call__()`` and ``Cursor.execute()``.
- * :exc:`TypeError` is now raised instead of :exc:`ValueError` for non-string script argument in ``Cursor.executescript()``.
- * :exc:`ValueError` is now raised for script containing the null character instead of truncating it in ``Cursor.executescript()``.
- * Correctly handle exceptions raised when getting boolean value of the result of the progress handler.
- * Add many tests covering different corner cases.
-
-- bpo-44581: Upgrade bundled pip to 21.2.3 and setuptools to 57.4.0
-
-- bpo-44849: Fix the :func:`os.set_inheritable` function on FreeBSD 14 for
- file descriptor opened with the :data:`~os.O_PATH` flag: ignore the
- :data:`~errno.EBADF` error on ``ioctl()``, fallback on the ``fcntl()``
- implementation. Patch by Victor Stinner.
-
-- bpo-44605: The @functools.total_ordering() decorator now works with
- metaclasses.
-
-- bpo-44524: Fixed an issue wherein the ``__name__`` and ``__qualname__``
- attributes of subscribed specialforms could be ``None``.
-
-- bpo-44839: :class:`MemoryError` raised in user-defined functions will now
- produce a ``MemoryError`` in :mod:`sqlite3`. :class:`OverflowError` will
- now be converted to :class:`~sqlite3.DataError`. Previously
- :class:`~sqlite3.OperationalError` was produced in these cases.
-
-- bpo-44822: :mod:`sqlite3` user-defined functions and aggregators returning
- :class:`strings <str>` with embedded NUL characters are no longer
- truncated. Patch by Erlend E. Aasland.
-
-- bpo-44801: Ensure that the :class:`~typing.ParamSpec` variable in Callable
- can only be substituted with a parameters expression (a list of types, an
- ellipsis, ParamSpec or Concatenate).
-
-- bpo-44806: Non-protocol subclasses of :class:`typing.Protocol` ignore now
- the ``__init__`` method inherited from protocol base classes.
-
-- bpo-27275: :meth:`collections.OrderedDict.popitem` and
- :meth:`collections.OrderedDict.pop` no longer call ``__getitem__`` and
- ``__delitem__`` methods of the OrderedDict subclasses.
-
-- bpo-44793: Fix checking the number of arguments when subscribe a generic
- type with ``ParamSpec`` parameter.
-
-- bpo-44784: In importlib.metadata tests, override warnings behavior under
- expected DeprecationWarnings (importlib_metadata 4.6.3).
-
-- bpo-44667: The :func:`tokenize.tokenize` doesn't incorrectly generate a
- ``NEWLINE`` token if the source doesn't end with a new line character but
- the last line is a comment, as the function is already generating a ``NL``
- token. Patch by Pablo Galindo
-
-- bpo-44771: Added ``importlib.simple`` module implementing adapters from a
- low-level resources reader interface to a ``TraversableResources``
- interface. Legacy API (``path``, ``contents``, ...) is now supported
- entirely by the ``.files()`` API with a compatibility shim supplied for
- resource loaders without that functionality. Feature parity with
- ``importlib_resources`` 5.2.
-
-- bpo-44752: :mod:`rcompleter` does not call :func:`getattr` on
- :class:`property` objects to avoid the side-effect of evaluating the
- corresponding method.
-
-- bpo-44747: Refactor usage of ``sys._getframe`` in ``typing`` module. Patch
- provided by Yurii Karabas.
-
-- bpo-42378: Fixes the issue with log file being overwritten when
- :class:`logging.FileHandler` is used in :mod:`atexit` with *filemode* set
- to ``'w'``. Note this will cause the message in *atexit* not being logged
- if the log stream is already closed due to shutdown of logging.
-
-- bpo-44720: ``weakref.proxy`` objects referencing non-iterators now raise
- ``TypeError`` rather than dereferencing the null ``tp_iternext`` slot and
- crashing.
-
-- bpo-44704: The implementation of ``collections.abc.Set._hash()`` now
- matches that of ``frozenset.__hash__()``.
-
-- bpo-44666: Fixed issue in :func:`compileall.compile_file` when
- ``sys.stdout`` is redirected. Patch by Stefan Hölzl.
-
-- bpo-44688: :meth:`sqlite3.Connection.create_collation` now accepts
- non-ASCII collation names. Patch by Erlend E. Aasland.
-
-- bpo-44690: Adopt *binacii.a2b_base64*'s strict mode in *base64.b64decode*.
-
-- bpo-42854: Fixed a bug in the :mod:`_ssl` module that was throwing
- :exc:`OverflowError` when using :meth:`_ssl._SSLSocket.write` and
- :meth:`_ssl._SSLSocket.read` for a big value of the ``len`` parameter.
- Patch by Pablo Galindo
-
-- bpo-44686: Replace ``unittest.mock._importer`` with
- ``pkgutil.resolve_name``.
-
-- bpo-44353: Make ``NewType.__call__`` faster by implementing it in C. Patch
- provided by Yurii Karabas.
-
-- bpo-44682: Change the :mod:`pdb` *commands* directive to disallow setting
- commands for an invalid breakpoint and to display an appropriate error.
-
-- bpo-44353: Refactor ``typing.NewType`` from function into callable class.
- Patch provided by Yurii Karabas.
-
-- bpo-44678: Added a separate error message for discontinuous padding in
- *binascii.a2b_base64* strict mode.
-
-- bpo-44524: Add missing ``__name__`` and ``__qualname__`` attributes to
- ``typing`` module classes. Patch provided by Yurii Karabas.
-
-- bpo-40897: Give priority to using the current class constructor in
- :func:`inspect.signature`. Patch by Weipeng Hong.
-
-- bpo-44638: Add a reference to the zipp project and hint as to how to use
- it.
-
-- bpo-44648: Fixed wrong error being thrown by :func:`inspect.getsource`
- when examining a class in the interactive session. Instead of
- :exc:`TypeError`, it should be :exc:`OSError` with appropriate error
- message.
-
-- bpo-44608: Fix memory leak in :func:`_tkinter._flatten` if it is called
- with a sequence or set, but not list or tuple.
-
-- bpo-44594: Fix an edge case of :class:`ExitStack` and
- :class:`AsyncExitStack` exception chaining. They will now match ``with``
- block behavior when ``__context__`` is explicitly set to ``None`` when the
- exception is in flight.
-
-- bpo-42799: In :mod:`fnmatch`, the cache size for compiled regex patterns
- (:func:`functools.lru_cache`) was bumped up from 256 to 32768, affecting
- functions: :func:`fnmatch.fnmatch`, :func:`fnmatch.fnmatchcase`,
- :func:`fnmatch.filter`.
-
-- bpo-41928: Update :func:`shutil.copyfile` to raise
- :exc:`FileNotFoundError` instead of confusing :exc:`IsADirectoryError`
- when a path ending with a :const:`os.path.sep` does not exist;
- :func:`shutil.copy` and :func:`shutil.copy2` are also affected.
-
-- bpo-44569: Added the :func:`StackSummary.format_frame` function in
- :mod:`traceback`. This allows users to customize the way individual lines
- are formatted in tracebacks without re-implementing logic to handle
- recursive tracebacks.
-
-- bpo-44566: handle StopIteration subclass raised from
- @contextlib.contextmanager generator
-
-- bpo-44558: Make the implementation consistency of
- :func:`~operator.indexOf` between C and Python versions. Patch by Dong-hee
- Na.
-
-- bpo-41249: Fixes ``TypedDict`` to work with ``typing.get_type_hints()``
- and postponed evaluation of annotations across modules.
-
-- bpo-44554: Refactor argument processing in :func:`pdb.main` to simplify
- detection of errors in input loading and clarify behavior around module or
- script invocation.
-
-- bpo-34798: Break up paragraph about :class:`pprint.PrettyPrinter`
- construction parameters to make it easier to read.
-
-- bpo-44539: Added support for recognizing JPEG files without JFIF or Exif
- markers.
-
-- bpo-44461: Fix bug with :mod:`pdb`'s handling of import error due to a
- package which does not have a ``__main__`` module
-
-- bpo-43625: Fix a bug in the detection of CSV file headers by
- :meth:`csv.Sniffer.has_header` and improve documentation of same.
-
-- bpo-44516: Update vendored pip to 21.1.3
-
-- bpo-42892: Fixed an exception thrown while parsing a malformed multipart
- email by :class:`email.message.EmailMessage`.
-
-- bpo-44468: :func:`typing.get_type_hints` now finds annotations in classes
- and base classes with unexpected ``__module__``. Previously, it skipped
- those MRO elements.
-
-- bpo-44491: Allow clearing the :mod:`sqlite3` authorizer callback by
- passing :const:`None` to :meth:`~sqlite3.Connection.set_authorizer`. Patch
- by Erlend E. Aasland.
-
-- bpo-43977: Set the proper :const:`Py_TPFLAGS_MAPPING` and
- :const:`Py_TPFLAGS_SEQUENCE` flags for subclasses created before a parent
- has been registered as a :class:`collections.abc.Mapping` or
- :class:`collections.abc.Sequence`.
-
-- bpo-44482: Fix very unlikely resource leak in :mod:`glob` in alternate
- Python implementations.
-
-- bpo-44466: The :mod:`faulthandler` module now detects if a fatal error
- occurs during a garbage collector collection. Patch by Victor Stinner.
-
-- bpo-44471: A :exc:`TypeError` is now raised instead of an
- :exc:`AttributeError` in :meth:`contextlib.ExitStack.enter_context` and
- :meth:`contextlib.AsyncExitStack.enter_async_context` for objects which do
- not support the :term:`context manager` or :term:`asynchronous context
- manager` protocols correspondingly.
-
-- bpo-44404: :mod:`tkinter`'s ``after()`` method now supports callables
- without the ``__name__`` attribute.
-
-- bpo-41546: Make :mod:`pprint` (like the builtin ``print``) not attempt to
- write to ``stdout`` when it is ``None``.
-
-- bpo-44458: ``BUFFER_BLOCK_SIZE`` is now declared static, to avoid linking
- collisions when bz2, lmza or zlib are statically linked.
-
-- bpo-44464: Remove exception for flake8 in deprecated importlib.metadata
- interfaces. Sync with importlib_metadata 4.6.
-
-- bpo-44446: Take into account that ``lineno`` might be ``None`` in
- :class:`traceback.FrameSummary`.
-
-- bpo-44439: Fix in :meth:`bz2.BZ2File.write` / :meth:`lzma.LZMAFile.write`
- methods, when the input data is an object that supports the buffer
- protocol, the file length may be wrong.
-
-- bpo-44434: _thread.start_new_thread() no longer calls
- PyThread_exit_thread() explicitly at the thread exit, the call was
- redundant. On Linux with the glibc, pthread_exit() aborts the whole
- process if dlopen() fails to open libgcc_s.so file (ex: EMFILE error).
- Patch by Victor Stinner.
-
-- bpo-42972: The _thread.RLock type now fully implement the GC protocol: add
- a traverse function and the :const:`Py_TPFLAGS_HAVE_GC` flag. Patch by
- Victor Stinner.
-
-- bpo-44422: The :func:`threading.enumerate` function now uses a reentrant
- lock to prevent a hang on reentrant call. Patch by Victor Stinner.
-
-- bpo-38291: Importing typing.io or typing.re now prints a
- ``DeprecationWarning``.
-
-- bpo-37880: argparse actions store_const and append_const each receive a
- default value of None when the ``const`` kwarg is not provided.
- Previously, this raised a :exc:`TypeError`.
-
-- bpo-44389: Fix deprecation of :data:`ssl.OP_NO_TLSv1_3`
-
-- bpo-27827: :meth:`pathlib.PureWindowsPath.is_reserved` now identifies a
- greater range of reserved filenames, including those with trailing spaces
- or colons.
-
-- bpo-44395: Fix :meth:`~email.message.MIMEPart.as_string` to pass unixfrom
- properly. Patch by Dong-hee Na.
-
-- bpo-34266: Handle exceptions from parsing the arg of :mod:`pdb`'s
- run/restart command.
-
-- bpo-44362: Improve :mod:`ssl` module's deprecation messages, error
- reporting, and documentation for deprecations.
-
-- bpo-44342: [Enum] Change pickling from by-value to by-name.
-
-- bpo-44356: [Enum] Allow multiple data-type mixins if they are all the
- same.
-
-- bpo-44351: Restore back :func:`parse_makefile` in
- :mod:`distutils.sysconfig` because it behaves differently than the similar
- implementation in :mod:`sysconfig`.
-
-- bpo-35800: :class:`smtpd.MailmanProxy` is now removed as it is unusable
- without an external module, ``mailman``. Patch by Dong-hee Na.
-
-- bpo-44357: Added a function that returns cube root of the given number
- :func:`math.cbrt`
-
-- bpo-44339: Change ``math.pow(±0.0, -math.inf)`` to return ``inf`` instead
- of raising ``ValueError``. This brings the special-case handling of
- ``math.pow`` into compliance with the IEEE 754 standard.
-
-- bpo-44242: Remove missing flag check from Enum creation and move into a
- ``verify`` decorator.
-
-- bpo-44246: In ``importlib.metadata``, restore compatibility in the result
- from ``Distribution.entry_points`` (``EntryPoints``) to honor expectations
- in older implementations and issuing deprecation warnings for these cases:
- A. ``EntryPoints`` objects are once again mutable, allowing for
- ``sort()`` and other list-based mutation operations. Avoid deprecation
- warnings by casting to a mutable sequence (e.g.
- ``list(dist.entry_points).sort()``). B. ``EntryPoints`` results once again
- allow for access by index. To avoid deprecation warnings, cast the
- result to a Sequence first (e.g. ``tuple(dist.entry_points)[0]``).
-
-- bpo-44246: In importlib.metadata.entry_points, de-duplication of
- distributions no longer requires loading the full metadata for
- PathDistribution objects, improving entry point loading performance by
- ~10x.
-
-- bpo-43858: Added a function that returns a copy of a dict of logging
- levels: :func:`logging.getLevelNamesMapping`
-
-- bpo-44260: The :class:`random.Random` constructor no longer reads system
- entropy without need.
-
-- bpo-44254: On Mac, give turtledemo button text a color that works on both
- light or dark background. Programmers cannot control the latter.
-
-- bpo-44258: Support PEP 515 for Fraction's initialization from string.
-
-- bpo-44235: Remove deprecated functions in the :mod:`gettext`. Patch by
- Dong-hee Na.
-
-- bpo-38693: Prefer f-strings to ``.format`` in importlib.resources.
-
-- bpo-33693: Importlib.metadata now prefers f-strings to .format.
-
-- bpo-44241: Incorporate minor tweaks from importlib_metadata 4.1:
- SimplePath protocol, support for Metadata 2.2.
-
-- bpo-43216: Remove the :func:`@asyncio.coroutine <asyncio.coroutine>`
- :term:`decorator` enabling legacy generator-based coroutines to be
- compatible with async/await code; remove
- :class:`asyncio.coroutines.CoroWrapper` used for wrapping legacy coroutine
- objects in the debug mode. The decorator has been deprecated since Python
- 3.8 and the removal was initially scheduled for Python 3.10. Patch by
- Illia Volochii.
-
-- bpo-44210: Make importlib.metadata._meta.PackageMetadata public.
-
-- bpo-43643: Declare readers.MultiplexedPath.name as a property per the
- spec.
-
-- bpo-27334: The :mod:`sqlite3` context manager now performs a rollback
- (thus releasing the database lock) if commit failed. Patch by Luca Citi
- and Erlend E. Aasland.
-
-- bpo-4928: Documented existing behavior on POSIX: NamedTemporaryFiles are
- not deleted when creating process is killed with SIGKILL
-
-- bpo-44154: Optimize :class:`fractions.Fraction` pickling for large
- components.
-
-- bpo-33433: For IPv4 mapped IPv6 addresses (:rfc:`4291` Section 2.5.5.2),
- the :mod:`ipaddress.IPv6Address.is_private` check is deferred to the
- mapped IPv4 address. This solves a bug where public mapped IPv4 addresses
- were considered private by the IPv6 check.
-
-- bpo-44150: Add optional *weights* argument to statistics.fmean().
-
-- bpo-44142: :func:`ast.unparse` will now drop the redundant parentheses
- when tuples used as assignment targets (e.g in for loops).
-
-- bpo-44145: :mod:`hmac` computations were not releasing the GIL while
- calling the OpenSSL ``HMAC_Update`` C API (a new feature in 3.9). This
- unintentionally prevented parallel computation as other :mod:`hashlib`
- algorithms support.
-
-- bpo-44095: :class:`zipfile.Path` now supports :attr:`zipfile.Path.stem`,
- :attr:`zipfile.Path.suffixes`, and :attr:`zipfile.Path.suffix` attributes.
-
-- bpo-44077: It's now possible to receive the type of service (ToS), a.k.a.
- differentiated services (DS), a.k.a. differentiated services code point
- (DSCP) and explicit congestion notification (ECN) IP header fields with
- ``socket.IP_RECVTOS``.
-
-- bpo-37788: Fix a reference leak when a Thread object is never joined.
-
-- bpo-38908: Subclasses of ``typing.Protocol`` which only have data
- variables declared will now raise a ``TypeError`` when checked with
- ``isinstance`` unless they are decorated with :func:`runtime_checkable`.
- Previously, these checks passed silently. Patch provided by Yurii Karabas.
-
-- bpo-44098: ``typing.ParamSpec`` will no longer be found in the
- ``__parameters__`` of most :mod:`typing` generics except in valid use
- locations specified by :pep:`612`. This prevents incorrect usage like
- ``typing.List[P][int]``. This change means incorrect usage which may have
- passed silently in 3.10 beta 1 and earlier will now error.
-
-- bpo-44089: Allow subclassing ``csv.Error`` in 3.10 (it was allowed in 3.9
- and earlier but was disallowed in early versions of 3.10).
-
-- bpo-44081: :func:`ast.unparse` now doesn't use redundant spaces to
- separate ``lambda`` and the ``:`` if there are no parameters.
-
-- bpo-44061: Fix regression in previous release when calling
- :func:`pkgutil.iter_modules` with a list of :class:`pathlib.Path` objects
-
-- bpo-44059: Register the SerenityOS Browser in the :mod:`webbrowser`
- module.
-
-- bpo-36515: The :mod:`hashlib` module no longer does unaligned memory
- accesses when compiled for ARM platforms.
-
-- bpo-40465: Remove random module features deprecated in Python 3.9.
-
-- bpo-44018: random.seed() no longer mutates bytearray inputs.
-
-- bpo-38352: Add ``IO``, ``BinaryIO``, ``TextIO``, ``Match``, and
- ``Pattern`` to ``typing.__all__``. Patch by Jelle Zijlstra.
-
-- bpo-44002: :mod:`urllib.parse` now uses :func:`functool.lru_cache` for its
- internal URL splitting and quoting caches instead of rolling its own like
- its the '90s.
-
- The undocumented internal :mod:`urllib.parse` ``Quoted`` class API is now
- deprecated, for removal in 3.14.
-
-- bpo-43972: When :class:`http.server.SimpleHTTPRequestHandler` sends a
- ``301 (Moved Permanently)`` for a directory path not ending with `/`, add
- a ``Content-Length: 0`` header. This improves the behavior for certain
- clients.
-
-- bpo-28528: Fix a bug in :mod:`pdb` where :meth:`~pdb.Pdb.checkline` raises
- :exc:`AttributeError` if it is called after :meth:`~pdb.Pdb.reset`.
-
-- bpo-43853: Improved string handling for :mod:`sqlite3` user-defined
- functions and aggregates:
-
- * It is now possible to pass strings with embedded null characters to UDFs
- * Conversion failures now correctly raise :exc:`MemoryError`
-
- Patch by Erlend E. Aasland.
-
-- bpo-43666: AIX: `Lib/_aix_support.get_platform()` may fail in an AIX WPAR.
- The fileset bos.rte appears to have a builddate in both LPAR and WPAR so
- this fileset is queried rather than bos.mp64. To prevent a similar
- situation (no builddate in ODM) a value (9988) sufficient for completing a
- build is provided. Patch by M Felt.
-
-- bpo-43650: Fix :exc:`MemoryError` in :func:`shutil.unpack_archive` which
- fails inside :func:`shutil._unpack_zipfile` on large files. Patch by Igor
- Bolshakov.
-
-- bpo-43612: :func:`zlib.compress` now accepts a wbits parameter which
- allows users to compress data as a raw deflate block without zlib headers
- and trailers in one go. Previously this required instantiating a
- ``zlib.compressobj``. It also provides a faster alternative to
- ``gzip.compress`` when wbits=31 is used.
-
-- bpo-43392: :func:`importlib._bootstrap._find_and_load` now implements a
- two-step check to avoid locking when modules have been already imported
- and are ready. This improves performance of repeated calls to
- :func:`importlib.import_module` and :func:`importlib.__import__`.
-
-- bpo-43318: Fix a bug where :mod:`pdb` does not always echo cleared
- breakpoints.
-
-- bpo-43234: Prohibit passing
- non-:class:`concurrent.futures.ThreadPoolExecutor` executors to
- :meth:`loop.set_default_executor` following a deprecation in Python 3.8.
- Patch by Illia Volochii.
-
-- bpo-43232: Prohibit previously deprecated potentially disruptive
- operations on :class:`asyncio.trsock.TransportSocket`. Patch by Illia
- Volochii.
-
-- bpo-30077: Added support for Apple's aifc/sowt pseudo-compression
-
-- bpo-42971: Add definition of ``errno.EQFULL`` for platforms that define
- this constant (such as macOS).
-
-- bpo-43086: Added a new optional :code:`strict_mode` parameter to
- *binascii.a2b_base64*. When :code:`scrict_mode` is set to :code:`True`,
- the *a2b_base64* function will accept only valid base64 content. More
- details about what "valid base64 content" is, can be found in the
- function's documentation.
-
-- bpo-43024: Improve the help signature of
- :func:`traceback.print_exception`, :func:`traceback.format_exception` and
- :func:`traceback.format_exception_only`.
-
-- bpo-33809: Add the :meth:`traceback.TracebackException.print` method which
- prints the formatted exception information.
-
-- bpo-42862: :mod:`sqlite3` now utilizes :meth:`functools.lru_cache` to
- implement the connection statement cache. As a small optimisation, the
- default statement cache size has been increased from 100 to 128. Patch by
- Erlend E. Aasland.
-
-- bpo-41818: Soumendra Ganguly: add termios.tcgetwinsize(),
- termios.tcsetwinsize().
-
-- bpo-40497: :meth:`subprocess.check_output` now raises :exc:`ValueError`
- when the invalid keyword argument *check* is passed by user code.
- Previously such use would fail later with a :exc:`TypeError`. Patch by
- Rémi Lapeyre.
-
-- bpo-37449: ``ensurepip`` now uses ``importlib.resources.files()``
- traversable APIs
-
-- bpo-40956: Use Argument Clinic in :mod:`sqlite3`. Patches by Erlend E.
- Aasland.
-
-- bpo-41730: ``DeprecationWarning`` is now raised when importing
- :mod:`tkinter.tix`, which has been deprecated in documentation since
- Python 3.6.
-
-- bpo-20684: Remove unused ``_signature_get_bound_param`` function from
- :mod:`inspect` - by Anthony Sottile.
-
-- bpo-41402: Fix :meth:`email.message.EmailMessage.set_content` when called
- with binary data and ``7bit`` content transfer encoding.
-
-- bpo-32695: The *compresslevel* and *preset* keyword arguments of
- :func:`tarfile.open` are now both documented and tested.
-
-- bpo-41137: Use utf-8 encoding while reading .pdbrc files. Patch by
- Srinivas Reddy Thatiparthy
-
-- bpo-24391: Improved reprs of :mod:`threading` synchronization objects:
- :class:`~threading.Semaphore`, :class:`~threading.BoundedSemaphore`,
- :class:`~threading.Event` and :class:`~threading.Barrier`.
-
-- bpo-5846: Deprecated the following :mod:`unittest` functions, scheduled
- for removal in Python 3.13:
-
- * :func:`~unittest.findTestCases`
- * :func:`~unittest.makeSuite`
- * :func:`~unittest.getTestCaseNames`
-
- Use :class:`~unittest.TestLoader` methods instead:
-
- * :meth:`unittest.TestLoader.loadTestsFromModule`
- * :meth:`unittest.TestLoader.loadTestsFromTestCase`
- * :meth:`unittest.TestLoader.getTestCaseNames`
-
- Patch by Erlend E. Aasland.
-
-- bpo-40563: Support pathlike objects on dbm/shelve. Patch by Hakan Çelik
- and Henry-Joseph Audéoud.
-
-- bpo-34990: Fixed a Y2k38 bug in the compileall module where it would fail
- to compile files with a modification time after the year 2038.
-
-- bpo-39549: Whereas the code for reprlib.Repr had previously used a
- hardcoded string value of '...', this PR updates it to use of a
- “fillvalue” attribute, whose value defaults to '...' and can be reset in
- either individual reprlib.Repr instances or in subclasses thereof.
-
-- bpo-37022: :mod:`pdb` now displays exceptions from ``repr()`` with its
- ``p`` and ``pp`` commands.
-
-- bpo-38840: Fix ``test___all__`` on platforms lacking a shared memory
- implementation.
-
-- bpo-39359: Add one missing check that the password is a bytes object for
- an encrypted zipfile.
-
-- bpo-38741: :mod:`configparser`: using ']' inside a section header will no
- longer cut the section name short at the ']'
-
-- bpo-38415: Added missing behavior to
- :func:`contextlib.asynccontextmanager` to match
- :func:`contextlib.contextmanager` so decorated functions can themselves be
- decorators.
-
-- bpo-30256: Pass multiprocessing BaseProxy argument ``manager_owned``
- through AutoProxy.
-
-- bpo-27513: :func:`email.utils.getaddresses` now accepts
- :class:`email.header.Header` objects along with string values. Patch by
- Zackery Spytz.
-
-- bpo-16379: Add SQLite error code and name to :mod:`sqlite3` exceptions.
- Patch by Aviv Palivoda, Daniel Shahaf, and Erlend E. Aasland.
-
-- bpo-26228: pty.spawn no longer hangs on FreeBSD, macOS, and Solaris.
-
-- bpo-33349: lib2to3 now recognizes async generators everywhere.
-
-- bpo-29298: Fix ``TypeError`` when required subparsers without ``dest`` do
- not receive arguments. Patch by Anthony Sottile.
-
-Documentation
--------------
-
-- bpo-45216: Remove extra documentation listing methods in ``difflib``. It
- was rendering twice in pydoc and was outdated in some places.
-
-- bpo-45024: :mod:`collections.abc` documentation has been expanded to
- explicitly cover how instance and subclass checks work, with additional
- doctest examples and an exhaustive list of ABCs which test membership
- purely by presence of the right :term:`special method`\s. Patch by Raymond
- Hettinger.
-
-- bpo-44957: Promote PEP 604 union syntax by using it where possible. Also,
- mention ``X | Y`` more prominently in section about ``Union`` and mention
- ``X | None`` at all in section about ``Optional``.
-
-- bpo-16580: Added code equivalents for the :meth:`int.to_bytes` and
- :meth:`int.from_bytes` methods, as well as tests ensuring that these code
- equivalents are valid.
-
-- bpo-44903: Removed the othergui.rst file, any references to it, and the
- list of GUI frameworks in the FAQ. In their place I've added links to the
- Python Wiki `page on GUI frameworks
- <https://wiki.python.org/moin/GuiProgramming>`.
-
-- bpo-33479: Tkinter documentation has been greatly expanded with new
- "Architecture" and "Threading model" sections.
-
-- bpo-36700: :mod:`base64` RFC references were updated to point to
- :rfc:`4648`; a section was added to point users to the new "security
- considerations" section of the RFC.
-
-- bpo-44740: Replaced occurrences of uppercase "Web" and "Internet" with
- lowercase versions per the 2016 revised Associated Press Style Book.
-
-- bpo-44693: Update the definition of __future__ in the glossary by
- replacing the confusing word "pseudo-module" with a more accurate
- description.
-
-- bpo-35183: Add typical examples to os.path.splitext docs
-
-- bpo-30511: Clarify that :func:`shutil.make_archive` is not thread-safe due
- to reliance on changing the current working directory.
-
-- bpo-44561: Update of three expired hyperlinks in
- Doc/distributing/index.rst: "Project structure", "Building and packaging
- the project", and "Uploading the project to the Python Packaging Index".
-
-- bpo-44651: Delete entry "coercion" in Doc/glossary.rst for its outdated
- definition.
-
-- bpo-42958: Updated the docstring and docs of :func:`filecmp.cmp` to be
- more accurate and less confusing especially in respect to *shallow* arg.
-
-- bpo-44631: Refactored the ``repr()`` code of the ``_Environ`` (os module).
-
-- bpo-44613: importlib.metadata is no longer provisional.
-
-- bpo-44558: Match the docstring and python implementation of
- :func:`~operator.countOf` to the behavior of its c implementation.
-
-- bpo-44544: List all kwargs for :func:`textwrap.wrap`,
- :func:`textwrap.fill`, and :func:`textwrap.shorten`. Now, there are nav
- links to attributes of :class:`TextWrap`, which makes navigation much
- easier while minimizing duplication in the documentation.
-
-- bpo-38062: Clarify that atexit uses equality comparisons internally.
-
-- bpo-40620: Convert examples in tutorial controlflow.rst section 4.3 to be
- interpreter-demo style.
-
-- bpo-43066: Added a warning to :mod:`zipfile` docs: filename arg with a
- leading slash may cause archive to be un-openable on Windows systems.
-
-- bpo-39452: Rewrote ``Doc/library/__main__.rst``. Broadened scope of the
- document to explicitly discuss and differentiate between ``__main__.py``
- in packages versus the ``__name__ == '__main__'`` expression (and the
- idioms that surround it).
-
-- bpo-13814: In the Design FAQ, answer "Why don't generators support the
- with statement?"
-
-- bpo-27752: Documentation of csv.Dialect is more descriptive.
-
-- bpo-44453: Fix documentation for the return type of
- :func:`sysconfig.get_path`.
-
-- bpo-44392: Added a new section in the C API documentation for types used
- in type hinting. Documented ``Py_GenericAlias`` and
- ``Py_GenericAliasType``.
-
-- bpo-38291: Mark ``typing.io`` and ``typing.re`` as deprecated since Python
- 3.8 in the documentation. They were never properly supported by type
- checkers.
-
-- bpo-44322: Document that SyntaxError args have a details tuple and that
- details are adjusted for errors in f-string field replacement expressions.
-
-- bpo-42392: Document the deprecation and removal of the ``loop`` parameter
- for many functions and classes in :mod:`asyncio`.
-
-- bpo-44195: Corrected references to ``TraversableResources`` in docs. There
- is no ``TraversableReader``.
-
-- bpo-41963: Document that ``ConfigParser`` strips off comments when reading
- configuration files.
-
-- bpo-44072: Correct where in the numeric ABC hierarchy ``**`` support is
- added, i.e., in numbers.Complex, not numbers.Integral.
-
-- bpo-43558: Add the remark to :mod:`dataclasses` documentation that the
- :meth:`__init__` of any base class has to be called in
- :meth:`__post_init__`, along with a code example.
-
-- bpo-44025: Clarify when '_' in match statements is a keyword, and when
- not.
-
-- bpo-41706: Fix docs about how methods like ``__add__`` are invoked when
- evaluating operator expressions.
-
-- bpo-41621: Document that :class:`collections.defaultdict` parameter
- ``default_factory`` defaults to None and is positional-only.
-
-- bpo-41576: document BaseException in favor of bare except
-
-- bpo-21760: The description for __file__ fixed. Patch by Furkan Onder
-
-- bpo-39498: Add a "Security Considerations" index which links to standard
- library modules that have explicitly documented security considerations.
-
-- bpo-33479: Remove the unqualified claim that tkinter is threadsafe. It has
- not been true for several years and likely never was. An explanation of
- what is true may be added later, after more discussion, and possibly after
- patching _tkinter.c,
-
-Tests
------
-
-- bpo-40173: Fix :func:`test.support.import_helper.import_fresh_module`.
-
-- bpo-45280: Add a test case for empty :class:`typing.NamedTuple`.
-
-- bpo-45269: Cover case when invalid ``markers`` type is supplied to
- ``c_make_encoder``.
-
-- bpo-45128: Fix ``test_multiprocessing_fork`` failure due to
- ``test_logging`` and ``sys.modules`` manipulation.
-
-- bpo-45209: Fix ``UserWarning: resource_tracker`` warning in
- ``_test_multiprocessing._TestSharedMemory.test_shared_memory_cleaned_after_process_termination``
-
-- bpo-45185: Enables ``TestEnumerations`` test cases in ``test_ssl`` suite.
-
-- bpo-45195: Fix test_readline.test_nonascii(): sometimes, the newline
- character is not written at the end, so don't expect it in the output.
- Patch by Victor Stinner.
-
-- bpo-45156: Fixes infinite loop on :func:`unittest.mock.seal` of mocks
- created by :func:`~unittest.create_autospec`.
-
-- bpo-45125: Improves pickling tests and docs of ``SharedMemory`` and
- ``SharableList`` objects.
-
-- bpo-44860: Update ``test_sysconfig.test_user_similar()`` for the
- posix_user scheme: ``platlib`` doesn't use :data:`sys.platlibdir`. Patch
- by Victor Stinner.
-
-- bpo-45052: ``WithProcessesTestSharedMemory.test_shared_memory_basics``
- test was ignored, because ``self.assertEqual(sms.size, sms2.size)`` line
- was failing. It is now removed and test is unskipped.
-
- The main motivation for this line to be removed from the test is that the
- ``size`` of ``SharedMemory`` is not ever guaranteed to be the same. It is
- decided by the platform.
-
-- bpo-44895: libregrtest now clears the type cache later to reduce the risk
- of false alarm when checking for reference leaks. Previously, the type
- cache was cleared too early and libregrtest raised a false alarm about
- reference leaks under very specific conditions. Patch by Irit Katriel and
- Victor Stinner.
-
-- bpo-45042: Fixes that test classes decorated with
- ``@hashlib_helper.requires_hashdigest`` were skipped all the time.
-
-- bpo-25130: Add calls of :func:`gc.collect` in tests to support PyPy.
-
-- bpo-45011: Made tests relying on the :mod:`_asyncio` C extension module
- optional to allow running on alternative Python implementations. Patch by
- Serhiy Storchaka.
-
-- bpo-44949: Fix auto history tests of test_readline: sometimes, the newline
- character is not written at the end, so don't expect it in the output.
-
-- bpo-44891: Tests were added to clarify :func:`id` is preserved when ``obj
- * 1`` is used on :class:`str` and :class:`bytes` objects. Patch by Nikita
- Sobolev.
-
-- bpo-44852: Add ability to wholesale silence DeprecationWarnings while
- running the regression test suite.
-
-- bpo-40928: Notify users running test_decimal regression tests on macOS of
- potential harmless "malloc can't allocate region" messages spewed by
- test_decimal.
-
-- bpo-44734: Fixed floating point precision issue in turtle tests.
-
-- bpo-44708: Regression tests, when run with -w, are now re-running only the
- affected test methods instead of re-running the entire test file.
-
-- bpo-42095: Added interop tests for Apple plists: generate plist files with
- Python plistlib and parse with Apple plutil; and the other way round.
-
-- bpo-44647: Added a permanent Unicode-valued environment variable to
- regression tests to ensure they handle this use case in the future. If
- your test environment breaks because of that, report a bug to us, and
- temporarily set PYTHONREGRTEST_UNICODE_GUARD=0 in your test environment.
-
-- bpo-44515: Adjust recently added contextlib tests to avoid assuming the
- use of a refcounted GC
-
-- bpo-44287: Fix asyncio test_popen() of test_windows_utils by using a
- longer timeout. Use military grade battle-tested
- :data:`test.support.SHORT_TIMEOUT` timeout rather than a hardcoded timeout
- of 10 seconds: it's 30 seconds by default, but it is made longer on slow
- buildbots. Patch by Victor Stinner.
-
-- bpo-44451: Reset ``DeprecationWarning`` filters in
- ``test.test_importlib.test_metadata_api.APITests.test_entry_points_by_index``
- to avoid ``StopIteration`` error if ``DeprecationWarnings`` are ignored.
-
-- bpo-44363: Account for address sanitizer in test_capi. test_capi now
- passes when run GCC address sanitizer.
-
-- bpo-44364: Add non integral tests for :func:`math.sqrt` function.
-
-- bpo-43921: Fix test_ssl.test_wrong_cert_tls13(): use
- ``suppress_ragged_eofs=False``, since ``read()`` can raise
- :exc:`ssl.SSLEOFError` on Windows. Patch by Victor Stinner.
-
-- bpo-43921: Fix test_pha_required_nocert() of test_ssl: catch two more EOF
- cases (when the ``recv()`` method returns an empty string). Patch by
- Victor Stinner.
-
-- bpo-44131: Add test_frozenmain to test_embed to test the
- :c:func:`Py_FrozenMain` C function. Patch by Victor Stinner.
-
-- bpo-31904: Ignore error string case in test_file_not_exists().
-
-- bpo-42083: Add test to check that ``PyStructSequence_NewType`` accepts a
- ``PyStructSequence_Desc`` with ``doc`` field set to ``NULL``.
-
-- bpo-35753: Fix crash in doctest when doctest parses modules that include
- unwrappable functions by skipping those functions.
-
-- bpo-30256: Add test for nested queues when using ``multiprocessing``
- shared objects ``AutoProxy[Queue]`` inside ``ListProxy`` and ``DictProxy``
-
-Build
------
-
-- bpo-45220: Avoid building with the Windows 11 SDK previews automatically.
- This may be overridden by setting the ``DefaultWindowsSDKVersion``
- environment variable before building.
-
-- bpo-45020: Freeze stdlib modules that are imported during startup. This
- provides significant performance improvements to startup. If necessary,
- use the previously added "-X frozen_modules=off" commandline option to
- force importing the source modules.
-
-- bpo-45188: Windows builds now regenerate frozen modules as the first part
- of the build. Previously the regeneration was later in the build, which
- would require it to be restarted if any modules had changed.
-
-- bpo-45163: Fixes Haiku platform build.
-
-- bpo-45067: The ncurses function extended_color_content was introduced in
- 2017
-
- (https://invisible-island.net/ncurses/NEWS.html#index-t20170401). The
-
- ncurses-devel package in CentOS 7 had a older version ncurses resulted in
- compilation error. For compiling ncurses with extended color support, we
- verify the version of the ncurses library >= 20170401.
-
-- bpo-45019: Generate lines in relevant files for frozen modules. Up until
- now each of the files had to be edited manually. This change makes it
- easier to add to and modify the frozen modules.
-
-- bpo-44340: Add support for building with clang thin lto via
- --with-lto=thin/full. Patch by Dong-hee Na and Brett Holman.
-
-- bpo-44535: Enable building using a Visual Studio 2022 install on Windows.
-
-- bpo-43298: Improved error message when building without a Windows SDK
- installed.
-
-- bpo-44381: The Windows build now accepts :envvar:`EnableControlFlowGuard`
- set to ``guard`` to enable CFG.
-
-- bpo-41282: Fix broken ``make install`` that caused standard library
- extension modules to be unnecessarily and incorrectly rebuilt during the
- install phase of cpython.
-
-Windows
--------
-
-- bpo-45375: Fixes an assertion failure due to searching for the standard
- library in unnormalised paths.
-
-- bpo-45022: Update Windows release to include libffi 3.4.2
-
-- bpo-45007: Update to OpenSSL 1.1.1l in Windows build
-
-- bpo-44848: Upgrade Windows installer to use SQLite 3.36.0.
-
-- bpo-44572: Avoid consuming standard input in the :mod:`platform` module
-
-- bpo-44582: Accelerate speed of :mod:`mimetypes` initialization using a
- native implementation of the registry scan.
-
-- bpo-41299: Fix 16 milliseconds jitter when using timeouts in
- :mod:`threading`, such as with :meth:`threading.Lock.acquire` or
- :meth:`threading.Condition.wait`.
-
-- bpo-42686: Build :mod:`sqlite3` with math functions enabled. Patch by
- Erlend E. Aasland.
-
-- bpo-40263: This is a follow-on bug from
- https://bugs.python.org/issue26903. Once that is applied we run into an
- off-by-one assertion problem. The assert was not correct.
-
-macOS
------
-
-- bpo-45007: Update macOS installer builds to use OpenSSL 1.1.1l.
-
-- bpo-34602: When building CPython on macOS with ``./configure
- --with-undefined-behavior-sanitizer --with-pydebug``, the stack size is
- now quadrupled to allow for the entire test suite to pass.
-
-- bpo-44848: Update macOS installer to use SQLite 3.36.0.
-
-- bpo-44689: :meth:`ctypes.util.find_library` now works correctly on macOS
- 11 Big Sur even if Python is built on an older version of macOS.
- Previously, when built on older macOS systems, ``find_library`` was not
- able to find macOS system libraries when running on Big Sur due to
- changes in how system libraries are stored.
-
-- bpo-41972: The framework build's user header path in sysconfig is changed
- to add a 'pythonX.Y' component to match distutils's behavior.
-
-- bpo-43109: Allow --with-lto configure option to work with Apple-supplied
- Xcode or Command Line Tools.
-
-- bpo-34932: Add socket.TCP_KEEPALIVE support for macOS. Patch by Shane
- Harvey.
-
-IDLE
-----
-
-- bpo-45296: On Windows, change exit/quit message to suggest Ctrl-D, which
- works, instead of <Ctrl-Z Return>, which does not work in IDLE.
-
-- bpo-45193: Make completion boxes appear on Ubuntu again.
-
-- bpo-40128: Mostly fix completions on macOS when not using tcl/tk 8.6.11
- (as with 3.9). The added update_idletask call should be harmless and
- possibly helpful otherwise.
-
-- bpo-33962: Move the indent space setting from the Font tab to the new
- Windows tab. Patch by Mark Roseman and Terry Jan Reedy.
-
-- bpo-40468: Split the settings dialog General tab into Windows and Shell/ED
- tabs. Move help sources, which extend the Help menu, to the Extensions
- tab. Make space for new options and shorten the dialog. The latter makes
- the dialog better fit small screens.
-
-- bpo-41611: Avoid uncaught exceptions in
- ``AutoCompleteWindow.winconfig_event()``.
-
-- bpo-41611: Fix IDLE sometimes freezing upon tab-completion on macOS.
-
-- bpo-44010: Highlight the new :ref:`match <match>` statement's :ref:`soft
- keywords <soft-keywords>`: :keyword:`match`, :keyword:`case <match>`, and
- :keyword:`_ <wildcard-patterns>`. However, this highlighting is not
- perfect and will be incorrect in some rare cases, including some ``_``-s
- in ``case`` patterns.
-
-- bpo-44026: Include interpreter's typo fix suggestions in message line for
- NameErrors and AttributeErrors. Patch by E. Paine.
-
-Tools/Demos
------------
-
-- bpo-44786: Fix a warning in regular expression in the c-analyzer script.
-
-- bpo-44967: pydoc now returns a non-zero status code when a module cannot
- be found.
-
-- bpo-44978: Allow the Argument Clinic tool to handle ``__complex__``
- special methods.
-
-- bpo-43425: Removed the 'test2to3' demo project that demonstrated using
- lib2to3 to support Python 2.x and Python 3.x from a single source in a
- distutils package. Patch by Dong-hee Na
-
-- bpo-44074: Make patchcheck automatically detect the correct base branch
- name (previously it was hardcoded to 'master')
-
-- bpo-20291: Added support for variadic positional parameters in Argument
- Clinic.
-
-C API
------
-
-- bpo-41710: The PyThread_acquire_lock_timed() function now clamps the
- timeout if it is too large, rather than aborting the process. Patch by
- Victor Stinner.
-
-- bpo-44687: :meth:`BufferedReader.peek` no longer raises :exc:`ValueError`
- when the entire file has already been buffered.
-
-- bpo-45116: Add the :c:macro:`Py_ALWAYS_INLINE` macro to ask the compiler
- to always inline a static inline function. The compiler can ignore it and
- decides to not inline the function. Patch by Victor Stinner.
-
-- bpo-45094: Add the :c:macro:`Py_NO_INLINE` macro to disable inlining on a
- function. Patch by Victor Stinner.
-
-- bpo-45061: Add a deallocator to the :class:`bool` type to detect refcount
- bugs in C extensions which call ``Py_DECREF(Py_True);`` or
- ``Py_DECREF(Py_False);`` by mistake. Patch by Victor Stinner.
-
-- bpo-42035: Add a new :c:func:`PyType_GetQualName` function to get type's
- qualified name.
-
-- bpo-41103: Reverts removal of the old buffer protocol because they are
- part of stable ABI.
-
-- bpo-44751: Remove ``crypt.h`` include from the public ``Python.h`` header.
-
-- bpo-42747: The ``Py_TPFLAGS_HAVE_VERSION_TAG`` type flag now does nothing.
- The ``Py_TPFLAGS_HAVE_AM_SEND`` flag (which was added in 3.10) is removed.
- Both were unnecessary because it is not possible to have type objects with
- the relevant fields missing.
-
-- bpo-44530: Added the ``co_qualname`` to the ``PyCodeObject`` structure to
- propagate the qualified name from the compiler to code objects.
-
- Patch by Gabriele N. Tornetta
-
-- bpo-44441: :c:func:`Py_RunMain` now resets :c:data:`PyImport_Inittab` to
- its initial value at exit. It must be possible to call
- :c:func:`PyImport_AppendInittab` or :c:func:`PyImport_ExtendInittab` at
- each Python initialization. Patch by Victor Stinner.
-
-- bpo-39947: Remove 4 private trashcan C API functions which were only kept
- for the backward compatibility of the stable ABI with Python 3.8 and
- older, since the trashcan API was not usable with the limited C API on
- Python 3.8 and older. The trashcan API was excluded from the limited C API
- in Python 3.9.
-
- Removed functions:
-
- * _PyTrash_deposit_object()
- * _PyTrash_destroy_chain()
- * _PyTrash_thread_deposit_object()
- * _PyTrash_thread_destroy_chain()
-
- The trashcan C API was never usable with the limited C API, since old
- trashcan macros accessed directly :c:type:`PyThreadState` members like
- ``_tstate->trash_delete_nesting``, whereas the :c:type:`PyThreadState`
- structure is opaque in the limited C API.
-
- Exclude also the ``PyTrash_UNWIND_LEVEL`` constant from the C API.
-
- Patch by Victor Stinner.
-
-- bpo-40939: Removed documentation for the removed ``PyParser_*`` C API.
-
-- bpo-43795: The list in :ref:`stable-abi-list` now shows the public name
- :c:struct:`PyFrameObject` rather than ``_frame``. The non-existing entry
- ``_node`` no longer appears in the list.
-
-- bpo-44378: :c:func:`Py_IS_TYPE` no longer uses :c:func:`Py_TYPE` to avoid
- a compiler warning: no longer cast ``const PyObject*`` to ``PyObject*``.
- Patch by Victor Stinner.
-
-- bpo-39573: Convert the :c:func:`Py_TYPE` and :c:func:`Py_SIZE` macros to
- static inline functions. The :c:func:`Py_SET_TYPE` and
- :c:func:`Py_SET_SIZE` functions must now be used to set an object type and
- size. Patch by Victor Stinner.
-
-- bpo-44263: The :c:func:`PyType_Ready` function now raises an error if a
- type is defined with the :const:`Py_TPFLAGS_HAVE_GC` flag set but has no
- traverse function (:c:member:`PyTypeObject.tp_traverse`). Patch by Victor
- Stinner.
-
-- bpo-43795: The undocumented function :c:func:`Py_FrozenMain` is removed
- from the Limited API.
-
-- bpo-44113: Deprecate the following functions to configure the Python
- initialization:
-
- * :c:func:`PySys_AddWarnOptionUnicode`
- * :c:func:`PySys_AddWarnOption`
- * :c:func:`PySys_AddXOption`
- * :c:func:`PySys_HasWarnOptions`
- * :c:func:`Py_SetPath`
- * :c:func:`Py_SetProgramName`
- * :c:func:`Py_SetPythonHome`
- * :c:func:`Py_SetStandardStreamEncoding`
- * :c:func:`_Py_SetProgramFullPath`
-
- Use the new :c:type:`PyConfig` API of the :ref:`Python Initialization
- Configuration <init-config>` instead (:pep:`587`).
-
-- bpo-44094: Remove ``PyErr_SetFromErrnoWithUnicodeFilename()``,
- ``PyErr_SetFromWindowsErrWithUnicodeFilename()``, and
- ``PyErr_SetExcFromWindowsErrWithUnicodeFilename()``. They are not
- documented and have been deprecated since Python 3.3.
-
-- bpo-43795: :c:func:`PyCodec_Unregister` is now properly exported as a
- function in the Windows Stable ABI DLL.
-
-- bpo-44029: Remove deprecated ``Py_UNICODE`` APIs: ``PyUnicode_Encode``,
- ``PyUnicode_EncodeUTF7``, ``PyUnicode_EncodeUTF8``,
- ``PyUnicode_EncodeUTF16``, ``PyUnicode_EncodeUTF32``,
- ``PyUnicode_EncodeLatin1``, ``PyUnicode_EncodeMBCS``,
- ``PyUnicode_EncodeDecimal``, ``PyUnicode_EncodeRawUnicodeEscape``,
- ``PyUnicode_EncodeCharmap``, ``PyUnicode_EncodeUnicodeEscape``,
- ``PyUnicode_TransformDecimalToASCII``, ``PyUnicode_TranslateCharmap``,
- ``PyUnicodeEncodeError_Create``, ``PyUnicodeTranslateError_Create``. See
- :pep:`393` and :pep:`624` for reference.
-
-- bpo-42035: Add a new :c:func:`PyType_GetName` function to get type's short
- name.
-
-
-What's New in Python 3.10.0 beta 1?
-===================================
-
-*Release date: 2021-05-03*
-
-Security
---------
-
-- bpo-43434: Creating :class:`sqlite3.Connection` objects now also produces
- ``sqlite3.connect`` and ``sqlite3.connect/handle`` :ref:`auditing events
- <auditing>`. Previously these events were only produced by
- :func:`sqlite3.connect` calls. Patch by Erlend E. Aasland.
-
-- bpo-43998: The :mod:`ssl` module sets more secure cipher suites defaults.
- Ciphers without forward secrecy and with SHA-1 MAC are disabled by
- default. Security level 2 prohibits weak RSA, DH, and ECC keys with less
- than 112 bits of security. :class:`~ssl.SSLContext` defaults to minimum
- protocol version TLS 1.2. Settings are based on Hynek Schlawack's
- research.
-
-- bpo-43882: The presence of newline or tab characters in parts of a URL
- could allow some forms of attacks.
-
- Following the controlling specification for URLs defined by WHATWG
- :func:`urllib.parse` now removes ASCII newlines and tabs from URLs,
- preventing such attacks.
-
-- bpo-43472: Ensures interpreter-level audit hooks receive the
- ``cpython.PyInterpreterState_New`` event when called through the
- ``_xxsubinterpreters`` module.
-
-- bpo-43362: Fix invalid free in _sha3 module. The issue was introduced in
- 3.10.0a1. Python 3.9 and earlier are not affected.
-
-- bpo-43762: Add audit events for :func:`sqlite3.connect/handle`,
- :meth:`sqlite3.Connection.enable_load_extension`, and
- :meth:`sqlite3.Connection.load_extension`. Patch by Erlend E. Aasland.
-
-- bpo-43756: Add new audit event ``glob.glob/2`` to incorporate the new
- *root_dir* and *dir_fd* arguments added to :func:`glob.glob` and
- :func:`glob.iglob`.
-
-- bpo-36384: :mod:`ipaddress` module no longer accepts any leading zeros in
- IPv4 address strings. Leading zeros are ambiguous and interpreted as octal
- notation by some libraries. For example the legacy function
- :func:`socket.inet_aton` treats leading zeros as octal notation. glibc
- implementation of modern :func:`~socket.inet_pton` does not accept any
- leading zeros. For a while the :mod:`ipaddress` module used to accept
- ambiguous leading zeros.
-
-- bpo-43075: Fix Regular Expression Denial of Service (ReDoS) vulnerability
- in :class:`urllib.request.AbstractBasicAuthHandler`. The ReDoS-vulnerable
- regex has quadratic worst-case complexity and it allows cause a denial of
- service when identifying crafted invalid RFCs. This ReDoS issue is on the
- client side and needs remote attackers to control the HTTP server.
-
-- bpo-42800: Audit hooks are now fired for frame.f_code, traceback.tb_frame,
- and generator code/frame attribute access.
-
-- bpo-37363: Add audit events to the :mod:`http.client` module.
-
-Core and Builtins
------------------
-
-- bpo-43977: Prevent classes being both a sequence and a mapping when
- pattern matching.
-
-- bpo-43977: Use :c:member:`~PyTypeObject.tp_flags` on the class object to
- determine if the subject is a sequence or mapping when pattern matching.
- Avoids the need to import :mod:`collections.abc` when pattern matching.
-
-- bpo-43892: Restore proper validation of complex literal value patterns
- when parsing :keyword:`!match` blocks.
-
-- bpo-43933: Set frame.f_lineno to the line number of the 'with' kweyword
- when executing the call to ``__exit__``.
-
-- bpo-43933: If the current position in a frame has no line number then set
- the f_lineno attribute to None, instead of -1, to conform to PEP 626. This
- should not normally be possible, but might occur in some unusual
- circumstances.
-
-- bpo-43963: Importing the :mod:`_signal` module in a subinterpreter has no
- longer side effects.
-
-- bpo-42739: The internal representation of line number tables is changed to
- not use sentinels, and an explicit length parameter is added to the out of
- process API function ``PyLineTable_InitAddressRange``. This makes the
- handling of line number tables more robust in some circumstances.
-
-- bpo-43908: Make :mod:`re` types immutable. Patch by Erlend E. Aasland.
-
-- bpo-43908: Make the :class:`array.array` type immutable. Patch by Erlend
- E. Aasland.
-
-- bpo-43901: Change class and module objects to lazy-create empty
- annotations dicts on demand. The annotations dicts are stored in the
- object's __dict__ for backwards compatibility.
-
-- bpo-43892: Match patterns now use new dedicated AST nodes (``MatchValue``,
- ``MatchSingleton``, ``MatchSequence``, ``MatchStar``, ``MatchMapping``,
- ``MatchClass``) rather than reusing expression AST nodes. ``MatchAs`` and
- ``MatchOr`` are now defined as pattern nodes rather than as expression
- nodes. Patch by Nick Coghlan.
-
-- bpo-42725: Usage of ``await``/``yield``/``yield from`` and named
- expressions within an annotation is now forbidden when PEP 563 is
- activated.
-
-- bpo-43754: When performing structural pattern matching (:pep:`634`),
- captured names are now left unbound until the *entire* pattern has matched
- successfully.
-
-- bpo-42737: Annotations for complex targets (everything beside simple
- names) no longer cause any runtime effects with ``from __future__ import
- annotations``.
-
-- bpo-43914: :exc:`SyntaxError` exceptions raised by the interpreter will
- highlight the full error range of the expression that consistutes the
- syntax error itself, instead of just where the problem is detected. Patch
- by Pablo Galindo.
-
-- bpo-38605: Revert making ``from __future__ import annotations`` the
- default. This follows the Steering Council decision to postpone PEP 563
- changes to at least Python 3.11. See the original email for more
- information regarding the decision:
- https://mail.python.org/archives/list/python-dev@python.org/thread/CLVXXPQ2T2LQ5MP2Y53VVQFCXYWQJHKZ/.
- Patch by Pablo Galindo.
-
-- bpo-43475: Hashes of NaN values now depend on object identity. Formerly,
- they always hashed to 0 even though NaN values are not equal to one
- another. Having the same hash for unequal values caused pile-ups in hash
- tables.
-
-- bpo-43859: Improve the error message for :exc:`IndentationError`
- exceptions. Patch by Pablo Galindo
-
-- bpo-41323: Constant tuple folding in bytecode optimizer now reuses tuple
- in constant table.
-
-- bpo-43846: Data stack usage is much reduced for large literal and call
- expressions.
-
-- bpo-38530: When printing :exc:`NameError` raised by the interpreter,
- :c:func:`PyErr_Display` will offer suggestions of similar variable names
- in the function that the exception was raised from. Patch by Pablo Galindo
-
-- bpo-43823: Improve syntax errors for invalid dictionary literals. Patch by
- Pablo Galindo.
-
-- bpo-43822: Improve syntax errors in the parser for missing commas between
- expressions. Patch by Pablo Galindo.
-
-- bpo-43798: :class:`ast.alias` nodes now include source location metadata
- attributes e.g. lineno, col_offset.
-
-- bpo-43797: Improve ``SyntaxError`` error messages for invalid comparisons.
- Patch by Pablo Galindo.
-
-- bpo-43760: Move the flag for checking whether tracing is enabled to the C
- stack, from the heap. Should speed up dispatch in the interpreter.
-
-- bpo-43682: Static methods (:func:`@staticmethod <staticmethod>`) and class
- methods (:func:`@classmethod <classmethod>`) now inherit the method
- attributes (``__module__``, ``__name__``, ``__qualname__``, ``__doc__``,
- ``__annotations__``) and have a new ``__wrapped__`` attribute. Patch by
- Victor Stinner.
-
-- bpo-43751: Fixed a bug where ``anext(ait, default)`` would erroneously
- return None.
-
-- bpo-42128: :data:`~object.__match_args__` is no longer allowed to be a
- list.
-
-- bpo-43683: Add GEN_START opcode. Marks start of generator, including
- async, or coroutine and handles sending values to a newly created
- generator or coroutine.
-
-- bpo-43105: Importlib now resolves relative paths when creating module spec
- objects from file locations.
-
-- bpo-43682: Static methods (:func:`@staticmethod <staticmethod>`) are now
- callable as regular functions. Patch by Victor Stinner.
-
-- bpo-42609: Prevented crashes in the AST validator and optimizer when
- compiling some absurdly long expressions like ``"+0"*1000000``.
- :exc:`RecursionError` is now raised instead.
-
-- bpo-38530: When printing :exc:`AttributeError`, :c:func:`PyErr_Display`
- will offer suggestions of similar attribute names in the object that the
- exception was raised from. Patch by Pablo Galindo
-
-Library
--------
-
-- bpo-44015: In @dataclass(), raise a TypeError if KW_ONLY is specified more
- than once.
-
-- bpo-25478: Added a *total()* method to collections.Counter() to compute
- the sum of the counts.
-
-- bpo-43733: Change :class:`netrc.netrc` to use UTF-8 encoding before using
- locale encoding.
-
-- bpo-43979: Removed an unnecessary list comprehension before looping from
- :func:`urllib.parse.parse_qsl`. Patch by Christoph Zwerschke and Dong-hee
- Na.
-
-- bpo-43993: Update bundled pip to 21.1.1.
-
-- bpo-43957: [Enum] Deprecate ``TypeError`` when non-member is used in a
- containment check; In 3.12 ``True`` or ``False`` will be returned instead,
- and containment will return ``True`` if the value is either a member of
- that enum or one of its members' value.
-
-- bpo-42904: For backwards compatibility with previous minor versions of
- Python, if :func:`typing.get_type_hints` receives no namespace dictionary
- arguments, :func:`typing.get_type_hints` will search through the global
- then local namespaces during evaluation of stringized type annotations
- (string forward references) inside a class.
-
-- bpo-43945: [Enum] Deprecate non-standard mixin format() behavior: in 3.12
- the enum member, not the member's value, will be used for format() calls.
-
-- bpo-41139: Deprecate undocumented ``cgi.log()`` API.
-
-- bpo-43937: Fixed the :mod:`turtle` module working with non-default root
- window.
-
-- bpo-43930: Update bundled pip to 21.1 and setuptools to 56.0.0
-
-- bpo-43907: Fix a bug in the pure-Python pickle implementation when using
- protocol 5, where bytearray instances that occur several time in the
- pickled object graph would incorrectly unpickle into repeated copies of
- the bytearray object.
-
-- bpo-43926: In ``importlib.metadata``, provide a uniform interface to
- ``Description``, allow for any field to be encoded with multiline values,
- remove continuation lines from multiline values, and add a ``.json``
- property for easy access to the PEP 566 JSON-compatible form. Sync with
- ``importlib_metadata 4.0``.
-
-- bpo-43920: OpenSSL 3.0.0: :meth:`~ssl.SSLContext.load_verify_locations`
- now returns a consistent error message when cadata contains no valid
- certificate.
-
-- bpo-43607: :mod:`urllib` can now convert Windows paths with ``\\?\``
- prefixes into URL paths.
-
-- bpo-43817: Add :func:`inspect.get_annotations`, which safely computes the
- annotations defined on an object. It works around the quirks of accessing
- the annotations from various types of objects, and makes very few
- assumptions about the object passed in. :func:`inspect.get_annotations`
- can also correctly un-stringize stringized annotations.
-
- :func:`inspect.signature`, :func:`inspect.from_callable`, and
- :func:`inspect.from_function` now call :func:`inspect.get_annotations` to
- retrieve annotations. This means :func:`inspect.signature` and
- :func:`inspect.from_callable` can now un-stringize stringized annotations,
- too.
-
-- bpo-43284: platform.win32_ver derives the windows version from
- sys.getwindowsversion().platform_version which in turn derives the version
- from kernel32.dll (which can be of a different version than Windows
- itself). Therefore change the platform.win32_ver to determine the version
- using the platform module's _syscmd_ver private function to return an
- accurate version.
-
-- bpo-42854: The :mod:`ssl` module now uses ``SSL_read_ex`` and
- ``SSL_write_ex`` internally. The functions support reading and writing of
- data larger than 2 GB. Writing zero-length data no longer fails with a
- protocol violation error.
-
-- bpo-42333: Port ``_ssl`` extension module to multiphase initialization.
-
-- bpo-43880: :mod:`ssl` now raises DeprecationWarning for OP_NO_SSL/TLS*
- options, old TLS versions, old protocols, and other features that have
- been deprecated since Python 3.6, 3.7, or OpenSSL 1.1.0.
-
-- bpo-41559: :pep:`612` is now implemented purely in Python; builtin
- ``types.GenericAlias`` objects no longer include ``typing.ParamSpec`` in
- ``__parameters__`` (with the exception of ``collections.abc.Callable``\ 's
- ``GenericAlias``). This means previously invalid uses of ``ParamSpec``
- (such as ``list[P]``) which worked in earlier versions of Python 3.10
- alpha, will now raise ``TypeError`` during substitution.
-
-- bpo-43867: The :mod:`multiprocessing` ``Server`` class now explicitly
- catches :exc:`SystemExit` and closes the client connection in this case.
- It happens when the ``Server.serve_client()`` method reaches the end of
- file (EOF).
-
-- bpo-40443: Remove unused imports: pyclbr no longer uses copy, and typing
- no longer uses ast. Patch by Victor Stinner.
-
-- bpo-43820: Remove an unneeded copy of the namespace passed to
- dataclasses.make_dataclass().
-
-- bpo-43787: Add ``__iter__()`` method to :class:`bz2.BZ2File`,
- :class:`gzip.GzipFile`, and :class:`lzma.LZMAFile`. It makes iterating
- them about 2x faster. Patch by Inada Naoki.
-
-- bpo-43680: Deprecate io.OpenWrapper and _pyio.OpenWrapper: use io.open and
- _pyio.open instead. Until Python 3.9, _pyio.open was not a static method
- and builtins.open was set to OpenWrapper to not become a bound method when
- set to a class variable. _io.open is a built-in function whereas
- _pyio.open is a Python function. In Python 3.10, _pyio.open() is now a
- static method, and builtins.open() is now io.open().
-
-- bpo-43680: The Python :func:`_pyio.open` function becomes a static method
- to behave as :func:`io.open` built-in function: don't become a bound
- method when stored as a class variable. It becomes possible since static
- methods are now callable in Python 3.10. Moreover,
- :func:`_pyio.OpenWrapper` becomes a simple alias to :func:`_pyio.open`.
- Patch by Victor Stinner.
-
-- bpo-41515: Fix :exc:`KeyError` raised in :func:`typing.get_type_hints` due
- to synthetic modules that don't appear in ``sys.modules``.
-
-- bpo-43776: When :class:`subprocess.Popen` args are provided as a string or
- as :class:`pathlib.Path`, the Popen instance repr now shows the right
- thing.
-
-- bpo-42248: [Enum] ensure exceptions raised in ``_missing__`` are released
-
-- bpo-43744: fix issue with enum member name matching the start of a private
- variable name
-
-- bpo-43772: Fixed the return value of ``TypeVar.__ror__``. Patch by Jelle
- Zijlstra.
-
-- bpo-43764: Add match_args parameter to @dataclass decorator to allow
- suppression of __match_args__ generation.
-
-- bpo-43799: OpenSSL 3.0.0: define ``OPENSSL_API_COMPAT`` 1.1.1 to suppress
- deprecation warnings. Python requires OpenSSL 1.1.1 APIs.
-
-- bpo-43478: Mocks can no longer be used as the specs for other Mocks. As a
- result, an already-mocked object cannot have an attribute mocked using
- ``autospec=True`` or be the subject of a ``create_autospec(...)`` call.
- This can uncover bugs in tests since these Mock-derived Mocks will always
- pass certain tests (e.g. :func:`isinstance`) and builtin assert functions
- (e.g. assert_called_once_with) will unconditionally pass.
-
-- bpo-43794: Add :data:`ssl.OP_IGNORE_UNEXPECTED_EOF` constants (OpenSSL
- 3.0.0)
-
-- bpo-43785: Improve ``bz2.BZ2File`` performance by removing the RLock from
- BZ2File. This makes BZ2File thread unsafe in the face of multiple
- simultaneous readers or writers, just like its equivalent classes in
- :mod:`gzip` and :mod:`lzma` have always been. Patch by Inada Naoki.
-
-- bpo-43789: OpenSSL 3.0.0: Don't call the password callback function a
- second time when first call has signaled an error condition.
-
-- bpo-43788: The header files for :mod:`ssl` error codes are now OpenSSL
- version-specific. Exceptions will now show correct reason and library
- codes. The ``make_ssl_data.py`` script has been rewritten to use OpenSSL's
- text file with error codes.
-
-- bpo-43766: Implement :pep:`647` in the :mod:`typing` module by adding
- :data:`TypeGuard`.
-
-- bpo-25264: :func:`os.path.realpath` now accepts a *strict* keyword-only
- argument. When set to ``True``, :exc:`OSError` is raised if a path doesn't
- exist or a symlink loop is encountered.
-
-- bpo-43780: In ``importlib.metadata``, incorporate changes from
- importlib_metadata 3.10: Add mtime-based caching during distribution
- discovery. Flagged use of dict result from ``entry_points()`` as
- deprecated.
-
-- The ``P.args`` and ``P.kwargs`` attributes of :class:`typing.ParamSpec`
- are now instances of the new classes :class:`typing.ParamSpecArgs` and
- :class:`typing.ParamSpecKwargs`, which enables a more useful ``repr()``.
- Patch by Jelle Zijlstra.
-
-- bpo-43731: Add an ``encoding`` parameter :func:`logging.fileConfig()`.
-
-- bpo-43712: Add ``encoding`` and ``errors`` parameters to
- :func:`fileinput.input` and :class:`fileinput.FileInput`.
-
-- bpo-38659: A ``simple_enum`` decorator is added to the ``enum`` module to
- convert a normal class into an Enum. ``test_simple_enum`` added to test
- simple enums against a corresponding normal Enum. Standard library
- modules updated to use ``simple_enum``.
-
-- bpo-43764: Fix an issue where :data:`~object.__match_args__` generation
- could fail for some :mod:`dataclasses`.
-
-- bpo-43752: Fix :mod:`sqlite3` regression for zero-sized blobs with
- converters, where ``b""`` was returned instead of ``None``. The regression
- was introduced by PR 24723. Patch by Erlend E. Aasland.
-
-- bpo-43655: :mod:`tkinter` dialog windows are now recognized as dialogs by
- window managers on macOS and X Window.
-
-- bpo-43723: The following ``threading`` methods are now deprecated and
- should be replaced:
-
- - ``currentThread`` => :func:`threading.current_thread`
-
- - ``activeCount`` => :func:`threading.active_count`
-
- - ``Condition.notifyAll`` => :meth:`threading.Condition.notify_all`
-
- - ``Event.isSet`` => :meth:`threading.Event.is_set`
-
- - ``Thread.setName`` => :attr:`threading.Thread.name`
-
- - ``thread.getName`` => :attr:`threading.Thread.name`
-
- - ``Thread.isDaemon`` => :attr:`threading.Thread.daemon`
-
- - ``Thread.setDaemon`` => :attr:`threading.Thread.daemon`
-
- Patch by Jelle Zijlstra.
-
-- bpo-2135: Deprecate find_module() and find_loader() implementations in
- importlib and zipimport.
-
-- bpo-43534: :func:`turtle.textinput` and :func:`turtle.numinput` create now
- a transient window working on behalf of the canvas window.
-
-- bpo-43532: Add the ability to specify keyword-only fields to dataclasses.
- These fields will become keyword-only arguments to the generated __init__.
-
-- bpo-43522: Fix problem with
- :attr:`~ssl.SSLContext.hostname_checks_common_name`. OpenSSL does not copy
- hostflags from *struct SSL_CTX* to *struct SSL*.
-
-- bpo-8978: Improve error message for :func:`tarfile.open` when :mod:`lzma`
- / :mod:`bz2` are unavailable. Patch by Anthony Sottile.
-
-- bpo-42967: Allow :class:`bytes` ``separator`` argument in
- ``urllib.parse.parse_qs`` and ``urllib.parse.parse_qsl`` when parsing
- :class:`str` query strings. Previously, this raised a ``TypeError``.
-
-- bpo-43296: Improve :mod:`sqlite3` error handling: ``sqlite3_value_blob()``
- errors that set ``SQLITE_NOMEM`` now raise :exc:`MemoryError`. Patch by
- Erlend E. Aasland.
-
-- bpo-43312: New functions :func:`sysconfig.get_preferred_scheme` and
- :func:`sysconfig.get_default_scheme` are added to query a platform for its
- preferred "user", "home", and "prefix" (default) scheme names.
-
-- bpo-43265: Improve :meth:`sqlite3.Connection.backup` error handling. The
- error message for non-existent target database names is now ``unknown
- database <database name>`` instead of ``SQL logic error``. Patch by Erlend
- E. Aasland.
-
-- bpo-41282: Install schemes in :mod:`distutils.command.install` are now
- loaded from :mod:`sysconfig`.
-
-- bpo-41282: :mod:`distutils.sysconfig` has been merged to :mod:`sysconfig`.
-
-- bpo-43176: Fixed processing of a dataclass that inherits from a frozen
- dataclass with no fields. It is now correctly detected as an error.
-
-- bpo-43080: :mod:`pprint` now has support for
- :class:`dataclasses.dataclass`. Patch by Lewis Gaul.
-
-- bpo-39950: Add `pathlib.Path.hardlink_to()` method that supersedes
- `link_to()`. The new method has the same argument order as `symlink_to()`.
-
-- bpo-42904: :func:`typing.get_type_hints` now checks the local namespace of
- a class when evaluating :pep:`563` annotations inside said class.
-
-- bpo-42269: Add ``slots`` parameter to ``dataclasses.dataclass`` decorator
- to automatically generate ``__slots__`` for class. Patch provided by Yurii
- Karabas.
-
-- bpo-39529: Deprecated use of :func:`asyncio.get_event_loop` without
- running event loop. Emit deprecation warning for :mod:`asyncio` functions
- which implicitly create a :class:`~asyncio.Future` or
- :class:`~asyncio.Task` objects if there is no running event loop and no
- explicit *loop* argument is passed: :func:`~asyncio.ensure_future`,
- :func:`~asyncio.wrap_future`, :func:`~asyncio.gather`,
- :func:`~asyncio.shield`, :func:`~asyncio.as_completed` and constructors of
- :class:`~asyncio.Future`, :class:`~asyncio.Task`,
- :class:`~asyncio.StreamReader`, :class:`~asyncio.StreamReaderProtocol`.
-
-- bpo-18369: Certificate and PrivateKey classes were added to the ssl
- module. Certificates and keys can now be loaded from memory buffer, too.
-
-- bpo-41486: Use a new output buffer management code for :mod:`bz2` /
- :mod:`lzma` / :mod:`zlib` modules, and add ``.readall()`` function to
- ``_compression.DecompressReader`` class. These bring some performance
- improvements. Patch by Ma Lin.
-
-- bpo-31870: The :func:`ssl.get_server_certificate` function now has a
- *timeout* parameter.
-
-- bpo-41735: Fix thread locks in zlib module may go wrong in rare case.
- Patch by Ma Lin.
-
-- bpo-36470: Fix dataclasses with ``InitVar``\s and
- :func:`~dataclasses.replace()`. Patch by Claudiu Popa.
-
-- bpo-40849: Expose X509_V_FLAG_PARTIAL_CHAIN ssl flag
-
-- bpo-35114: :func:`ssl.RAND_status` now returns a boolean value (as
- documented) instead of ``1`` or ``0``.
-
-- bpo-39906: :meth:`pathlib.Path.stat` and :meth:`~pathlib.Path.chmod` now
- accept a *follow_symlinks* keyword-only argument for consistency with
- corresponding functions in the :mod:`os` module.
-
-- bpo-39899: :func:`os.path.expanduser()` now refuses to guess Windows home
- directories if the basename of current user's home directory does not
- match their username.
-
- :meth:`pathlib.Path.expanduser()` and :meth:`~pathlib.Path.home()` now
- consistently raise :exc:`RuntimeError` exception when a home directory
- cannot be resolved. Previously a :exc:`KeyError` exception could be raised
- on Windows when the ``"USERNAME"`` environment variable was unset.
-
-- bpo-36076: Added SNI support to :func:`ssl.get_server_certificate`.
-
-- bpo-38490: Covariance, Pearson's correlation, and simple linear regression
- functionality was added to statistics module. Patch by Tymoteusz Wołodźko.
-
-- bpo-33731: Provide a locale.localize() function, which converts a
- normalized number string into a locale format.
-
-- bpo-32745: Fix a regression in the handling of ctypes'
- :data:`ctypes.c_wchar_p` type: embedded null characters would cause a
- :exc:`ValueError` to be raised. Patch by Zackery Spytz.
-
-Documentation
--------------
-
-- bpo-43987: Add "Annotations Best Practices" document as a new HOWTO.
-
-- bpo-43977: Document the new :const:`Py_TPFLAGS_MAPPING` and
- :const:`Py_TPFLAGS_SEQUENCE` type flags.
-
-- bpo-43959: The documentation on the PyContextVar C-API was clarified.
-
-- bpo-43938: Update dataclasses documentation to express that
- FrozenInstanceError is derived from AttributeError.
-
-- bpo-43778: Fix the Sphinx glossary_search extension: create the _static/
- sub-directory if it doesn't exist.
-
-- bpo-43755: Update documentation to reflect that unparenthesized lambda
- expressions can no longer be the expression part in an ``if`` clause in
- comprehensions and generator expressions since Python 3.9.
-
-- bpo-43739: Fixing the example code in Doc/extending/extending.rst to
- declare and initialize the pmodule variable to be of the right type.
-
-Tests
------
-
-- bpo-43961: Fix test_logging.test_namer_rotator_inheritance() on Windows:
- use :func:`os.replace` rather than :func:`os.rename`. Patch by Victor
- Stinner.
-
-- bpo-43842: Fix a race condition in the SMTP test of test_logging. Don't
- close a file descriptor (socket) from a different thread while
- asyncore.loop() is polling the file descriptor. Patch by Victor Stinner.
-
-- bpo-43843: :mod:`test.libregrtest` now marks a test as ENV_CHANGED
- (altered the execution environment) if a thread raises an exception but
- does not catch it. It sets a hook on :func:`threading.excepthook`. Use
- ``--fail-env-changed`` option to mark the test as failed. Patch by Victor
- Stinner.
-
-- bpo-43811: Tests multiple OpenSSL versions on GitHub Actions. Use ccache
- to speed up testing.
-
-- bpo-43791: OpenSSL 3.0.0: Disable testing of legacy protocols TLS 1.0 and
- 1.1. Tests are failing with TLSV1_ALERT_INTERNAL_ERROR.
-
-Build
------
-
-- bpo-43567: Improved generated code refresh (AST/tokens/opcodes/keywords)
- on Windows.
-
-- bpo-43669: Implement :pep:`644`. Python now requires OpenSSL 1.1.1 or
- newer.
-
-Windows
--------
-
-- bpo-35306: Adds additional arguments to :func:`os.startfile` function.
-
-- bpo-43538: Avoid raising errors from :meth:`pathlib.Path.exists()` when
- passed an invalid filename.
-
-- bpo-38822: Fixed :func:`os.stat` failing on inaccessible directories with
- a trailing slash, rather than falling back to the parent directory's
- metadata. This implicitly affected :func:`os.path.exists` and
- :func:`os.path.isdir`.
-
-- bpo-26227: Fixed decoding of host names in :func:`socket.gethostbyaddr`
- and :func:`socket.gethostbyname_ex`.
-
-- bpo-40432: Updated pegen regeneration script on Windows to find and use
- Python 3.8 or higher. Prior to this, pegen regeneration already required
- 3.8 or higher, but the script may have used lower versions of Python.
-
-- bpo-43745: Actually updates Windows release to OpenSSL 1.1.1k. Earlier
- releases were mislabelled and actually included 1.1.1i again.
-
-- bpo-43652: Update Tcl and Tk to 8.6.11 in Windows installer.
-
-- bpo-43492: Upgrade Windows installer to use SQLite 3.35.5.
-
-- bpo-30555: Fix ``WindowsConsoleIO`` errors in the presence of fd
- redirection. Patch by Segev Finer.
-
-macOS
------
-
-- bpo-42119: Fix check for macOS SDK paths when building Python. Narrow
- search to match contents of SDKs, namely only files in
- ``/System/Library``, ``/System/IOSSupport``, and ``/usr`` other than
- ``/usr/local``. Previously, anything under ``/System`` was assumed to be
- in an SDK which causes problems with the new file system layout in 10.15+
- where user file systems may appear to be mounted under ``/System``. Paths
- in ``/Library`` were also incorrectly treated as SDK locations.
-
-- bpo-43568: Drop support for MACOSX_DEPLOYMENT_TARGET < 10.3
-
-- bpo-44009: Provide "python3.x-intel64" executable to allow reliably
- forcing macOS universal2 framework builds to run under Rosetta 2 Intel-64
- emulation on Apple Silicon Macs. This can be useful for testing or when
- universal2 wheels are not yet available.
-
-- bpo-43851: Build SQLite with ``SQLITE_OMIT_AUTOINIT`` on macOS. Patch by
- Erlend E. Aasland.
-
-- bpo-43492: Update macOS installer to use SQLite 3.35.4.
-
-- bpo-42235: ``Mac/BuildScript/build-installer.py`` will now use
- "--enable-optimizations" and ``--with-lto`` when building on macOS 10.15
- or later.
-
-IDLE
-----
-
-- bpo-37903: Add mouse actions to the shell sidebar. Left click and
- optional drag selects one or more lines, as with the editor line number
- sidebar. Right click after selecting raises a context menu with 'copy
- with prompts'. This zips together prompts from the sidebar with lines
- from the selected text.
-
-- bpo-43981: Fix reference leak in test_sidebar and test_squeezer. Patches
- by Terry Jan Reedy and Pablo Galindo
-
-- bpo-37892: Indent IDLE Shell input with spaces instead of tabs
-
-- bpo-43655: IDLE dialog windows are now recognized as dialogs by window
- managers on macOS and X Window.
-
-- bpo-37903: IDLE's shell now shows prompts in a separate side-bar.
-
-C API
------
-
-- bpo-43916: Add a new :c:data:`Py_TPFLAGS_DISALLOW_INSTANTIATION` type flag
- to disallow creating type instances. Patch by Victor Stinner.
-
-- bpo-43774: Remove the now unused ``PYMALLOC_DEBUG`` macro. Debug hooks on
- memory allocators are now installed by default if Python is built in debug
- mode (if ``Py_DEBUG`` macro is defined). Moreover, they can now be used on
- Python build in release mode (ex: using ``PYTHONMALLOC=debug`` environment
- variable).
-
-- bpo-43962: _PyInterpreterState_IDIncref() now calls
- _PyInterpreterState_IDInitref() and always increments id_refcount.
- Previously, calling _xxsubinterpreters.get_current() could create an
- id_refcount inconsistency when a _xxsubinterpreters.InterpreterID object
- was deallocated. Patch by Victor Stinner.
-
-- bpo-28254: Add new C-API functions to control the state of the garbage
- collector: :c:func:`PyGC_Enable()`, :c:func:`PyGC_Disable()`,
- :c:func:`PyGC_IsEnabled()`, corresponding to the functions in the
- :mod:`gc` module.
-
-- bpo-43908: Introduce :const:`Py_TPFLAGS_IMMUTABLETYPE` flag for immutable
- type objects, and modify :c:func:`PyType_Ready` to set it for static
- types. Patch by Erlend E. Aasland.
-
-- bpo-43795: :c:func:`PyMem_Calloc` is now available in the limited C API
- (``Py_LIMITED_API``).
-
-- bpo-43868: :c:func:`PyOS_ReadlineFunctionPointer` is no longer exported by
- limited C API headers and by ``python3.dll`` on Windows. Like any function
- that takes ``FILE*``, it is not part of the stable ABI.
-
-- bpo-43795: Stable ABI and limited API definitions are generated from a
- central manifest (:pep:`652`).
-
-- bpo-43753: Add the :c:func:`Py_Is(x, y) <Py_Is>` function to test if the
- *x* object is the *y* object, the same as ``x is y`` in Python. Add also
- the :c:func:`Py_IsNone`, :c:func:`Py_IsTrue`, :c:func:`Py_IsFalse`
- functions to test if an object is, respectively, the ``None`` singleton,
- the ``True`` singleton or the ``False`` singleton. Patch by Victor
- Stinner.
-
-
-What's New in Python 3.10.0 alpha 7?
-====================================
-
-*Release date: 2021-04-05*
-
-Security
---------
-
-- bpo-42988: CVE-2021-3426: Remove the ``getfile`` feature of the
- :mod:`pydoc` module which could be abused to read arbitrary files on the
- disk (directory traversal vulnerability). Moreover, even source code of
- Python modules can contain sensitive data like passwords. Vulnerability
- reported by David Schwörer.
-
-- bpo-43285: :mod:`ftplib` no longer trusts the IP address value returned
- from the server in response to the PASV command by default. This prevents
- a malicious FTP server from using the response to probe IPv4 address and
- port combinations on the client network.
-
- Code that requires the former vulnerable behavior may set a
- ``trust_server_pasv_ipv4_address`` attribute on their :class:`ftplib.FTP`
- instances to ``True`` to re-enable it.
-
-- bpo-43439: Add audit hooks for :func:`gc.get_objects`,
- :func:`gc.get_referrers` and :func:`gc.get_referents`. Patch by Pablo
- Galindo.
-
-Core and Builtins
------------------
-
-- bpo-27129: Update CPython bytecode magic number.
-
-- bpo-43672: Raise ImportWarning when calling find_loader().
-
-- bpo-43660: Fix crash that happens when replacing ``sys.stderr`` with a
- callable that can remove the object while an exception is being printed.
- Patch by Pablo Galindo.
-
-- bpo-27129: The bytecode interpreter uses instruction, rather byte, offsets
- internally. This reduces the number of EXTENDED_ARG instructions needed
- and streamlines instruction dispatch a bit.
-
-- bpo-40645: Fix reference leak in the :mod:`_hashopenssl` extension. Patch
- by Pablo Galindo.
-
-- bpo-42134: Calls to find_module() by the import system now raise
- ImportWarning.
-
-- bpo-41064: Improve the syntax error for invalid usage of double starred
- elements ('**') in f-strings. Patch by Pablo Galindo.
-
-- bpo-43575: Speed up calls to ``map()`` by using the :pep:`590`
- ``vectorcall`` calling convention. Patch by Dong-hee Na.
-
-- bpo-42137: The import system now prefers using ``__spec__`` for
- ``ModuleType.__repr__`` over ``module_repr()``.
-
-- bpo-43452: Added micro-optimizations to ``_PyType_Lookup()`` to improve
- cache lookup performance in the common case of cache hits.
-
-- bpo-43555: Report the column offset for :exc:`SyntaxError` for invalid
- line continuation characters. Patch by Pablo Galindo.
-
-- bpo-43517: Fix misdetection of circular imports when using ``from pkg.mod
- import attr``, which caused false positives in non-trivial multi-threaded
- code.
-
-- bpo-43497: Emit SyntaxWarnings for assertions with tuple constants, this
- is a regression introduced in python3.7
-
-- bpo-39316: Tracing now has correct line numbers for attribute accesses
- when the attribute is on a different line from the object. Improves
- debugging and profiling for multi-line method chains.
-
-- bpo-35883: Python no longer fails at startup with a fatal error if a
- command line argument contains an invalid Unicode character. The
- :c:func:`Py_DecodeLocale` function now escapes byte sequences which would
- be decoded as Unicode characters outside the [U+0000; U+10ffff] range.
-
-- bpo-43410: Fix a bug that was causing the parser to crash when emitting
- syntax errors when reading input from stdin. Patch by Pablo Galindo
-
-- bpo-43406: Fix a possible race condition where ``PyErr_CheckSignals``
- tries to execute a non-Python signal handler.
-
-- bpo-42128: Add ``__match_args__`` to :c:type:`structsequence` based
- classes. Patch by Pablo Galindo.
-
-- bpo-43390: CPython now sets the ``SA_ONSTACK`` flag in ``PyOS_setsig`` for
- the VM's default signal handlers. This is friendlier to other in-process
- code that an extension module or embedding use could pull in (such as
- Golang's cgo) where tiny thread stacks are the norm and ``sigaltstack()``
- has been used to provide for signal handlers. This is a no-op change for
- the vast majority of processes that don't use sigaltstack.
-
-- bpo-43287: Speed up calls to ``filter()`` by using the :pep:`590`
- ``vectorcall`` calling convention. Patch by Dong-hee Na.
-
-- bpo-37448: Add a radix tree based memory map to track in-use obmalloc
- arenas. Use to replace the old implementation of address_in_range(). The
- radix tree approach makes it easy to increase pool sizes beyond the OS
- page size. Boosting the pool and arena size allows obmalloc to handle a
- significantly higher percentage of requests from its ultra-fast paths.
-
- It also has the advantage of eliminating the memory unsanitary behavior of
- the previous address_in_range(). The old address_in_range() was marked
- with the annotations _Py_NO_SANITIZE_ADDRESS, _Py_NO_SANITIZE_THREAD, and
- _Py_NO_SANITIZE_MEMORY. Those annotations are no longer needed.
-
- To disable the radix tree map, set a preprocessor flag as follows:
- `-DWITH_PYMALLOC_RADIX_TREE=0`.
-
- Co-authored-by: Tim Peters <tim.peters@gmail.com>
-
-- bpo-29988: Only handle asynchronous exceptions and requests to drop the
- GIL when returning from a call or on the back edges of loops. Makes sure
- that :meth:`__exit__` is always called in with statements, even for
- interrupts.
-
-Library
--------
-
-- bpo-43720: Document various stdlib deprecations in imp, pkgutil, and
- importlib.util for removal in Python 3.12.
-
-- bpo-43433: :class:`xmlrpc.client.ServerProxy` no longer ignores query and
- fragment in the URL of the server.
-
-- bpo-31956: The :meth:`~array.array.index` method of :class:`array.array`
- now has optional *start* and *stop* parameters.
-
-- bpo-40066: Enum: adjust ``repr()`` to show only enum and member name (not
- value, nor angle brackets) and ``str()`` to show only member name. Update
- and improve documentation to match.
-
-- bpo-42136: Deprecate all module_repr() methods found in importlib as their
- use is being phased out by Python 3.12.
-
-- bpo-35930: Raising an exception raised in a "future" instance will create
- reference cycles.
-
-- bpo-41369: Finish updating the vendored libmpdec to version 2.5.1. Patch
- by Stefan Krah.
-
-- bpo-43422: Revert the _decimal C API which was added in bpo-41324.
-
-- bpo-43577: Fix deadlock when using :class:`ssl.SSLContext` debug callback
- with :meth:`ssl.SSLContext.sni_callback`.
-
-- bpo-43571: It's now possible to create MPTCP sockets with IPPROTO_MPTCP
-
-- bpo-43542: ``image/heic`` and ``image/heif`` were added to
- :mod:`mimetypes`.
-
-- bpo-40645: The :mod:`hmac` module now uses OpenSSL's HMAC implementation
- when digestmod argument is a hash name or builtin hash function.
-
-- bpo-43510: Implement :pep:`597`: Add ``EncodingWarning`` warning, ``-X
- warn_default_encoding`` option, :envvar:`PYTHONWARNDEFAULTENCODING`
- environment variable and ``encoding="locale"`` argument value.
-
-- bpo-43521: ``ast.unparse`` can now render NaNs and empty sets.
-
-- bpo-42914: :func:`pprint.pprint` gains a new boolean
- ``underscore_numbers`` optional argument to emit integers with thousands
- separated by an underscore character for improved readability (for example
- ``1_000_000`` instead of ``1000000``).
-
-- bpo-41361: :meth:`~collections.deque.rotate` calls are now slightly faster
- due to faster argument parsing.
-
-- bpo-43423: :func:`subprocess.communicate` no longer raises an IndexError
- when there is an empty stdout or stderr IO buffer during a timeout on
- Windows.
-
-- bpo-27820: Fixed long-standing bug of smtplib.SMTP where doing AUTH LOGIN
- with initial_response_ok=False will fail.
-
- The cause is that SMTP.auth_login _always_ returns a password if provided
- with a challenge string, thus non-compliant with the standard for AUTH
- LOGIN.
-
- Also fixes bug with the test for smtpd.
-
-- bpo-43445: Add frozen modules to :data:`sys.stdlib_module_names`. For
- example, add ``"_frozen_importlib"`` and ``"_frozen_importlib_external"``
- names.
-
-- bpo-43245: Add keyword arguments support to ``ChainMap.new_child()``.
-
-- bpo-29982: Add optional parameter *ignore_cleanup_errors* to
- :func:`tempfile.TemporaryDirectory` and allow multiple :func:`cleanup`
- attempts. Contributed by C.A.M. Gerlach.
-
-- bpo-43428: Include changes from `importlib_metadata 3.7
- <https://importlib-metadata.readthedocs.io/en/latest/history.html#v3-7-0>`_:
-
- Performance enhancements to distribution discovery.
-
- ``entry_points`` only returns unique distributions.
-
- Introduces new ``EntryPoints`` object for containing a set of entry points
- with convenience methods for selecting entry points by group or name.
- ``entry_points`` now returns this object if selection parameters are
- supplied but continues to return a dict object for compatibility. Users
- are encouraged to rely on the selection interface. The dict object result
- is likely to be deprecated in the future.
-
- Added packages_distributions function to return a mapping of packages to
- the distributions that provide them.
-
-- bpo-43332: Improves the networking efficiency of :mod:`http.client` when
- using a proxy via :meth:`~HTTPConnection.set_tunnel`. Fewer small send
- calls are made during connection setup.
-
-- bpo-43420: Improve performance of :class:`fractions.Fraction` arithmetics
- for large components. Contributed by Sergey B. Kirpichev.
-
-- bpo-43356: Allow passing a signal number to ``_thread.interrupt_main()``.
-
-- bpo-43399: Fix ``ElementTree.extend`` not working on iterators when using
- the Python implementation
-
-- bpo-43369: Improve :mod:`sqlite3` error handling: If
- ``sqlite3_column_text()`` and ``sqlite3_column_blob()`` set
- ``SQLITE_NOMEM``, :exc:`MemoryError` is now raised. Patch by Erlend E.
- Aasland.
-
-- bpo-43368: Fix a regression introduced in PR 24562, where an empty
- bytestring was fetched as ``None`` instead of ``b''`` in :mod:`sqlite3`.
- Patch by Mariusz Felisiak.
-
-- bpo-41282: Fixed stacklevel of ``DeprecationWarning`` emitted from
- ``import distutils``.
-
-- bpo-42129: ``importlib.resources`` now honors namespace packages, merging
- resources from each location in the namespace as introduced in
- ``importlib_resources`` 3.2 and including incidental changes through
- 5.0.3.
-
-- bpo-43295: :meth:`datetime.datetime.strptime` now raises ``ValueError``
- instead of ``IndexError`` when matching ``'z'`` with the ``%z`` format
- specifier.
-
-- bpo-43125: Return empty string if base64mime.body_encode receive empty
- bytes
-
-- bpo-43084: :func:`curses.window.enclose` returns now ``True`` or ``False``
- (as was documented) instead of ``1`` or ``0``.
-
-- bpo-42994: Add MIME types for opus, AAC, 3gpp and 3gpp2
-
-- bpo-14678: Add an invalidate_caches() method to the zipimport.zipimporter
- class to support importlib.invalidate_caches(). Patch by Desmond Cheong.
-
-- bpo-42782: Fail fast in :func:`shutil.move()` to avoid creating
- destination directories on failure.
-
-- bpo-40066: Enum's `repr()` and `str()` have changed: `repr()` is now
- *EnumClass.MemberName* and `str()` is *MemberName*. Additionally, stdlib
- Enum's whose contents are available as module attributes, such as
- `RegexFlag.IGNORECASE`, have their `repr()` as *module.name*, e.g.
- `re.IGNORECASE`.
-
-- bpo-26053: Fixed bug where the :mod:`pdb` interactive run command echoed
- the args from the shell command line, even if those have been overridden
- at the pdb prompt.
-
-- bpo-24160: Fixed bug where breakpoints did not persist across multiple
- debugger sessions in :mod:`pdb`'s interactive mode.
-
-- bpo-40701: When the :data:`tempfile.tempdir` global variable is set to a
- value of type bytes, it is now handled consistently. Previously
- exceptions could be raised from some tempfile APIs when the directory did
- not already exist in this situation. Also ensures that the
- :func:`tempfile.gettempdir()` and :func:`tempfile.gettempdirb()` functions
- *always* return ``str`` and ``bytes`` respectively.
-
-- bpo-39342: Expose ``X509_V_FLAG_ALLOW_PROXY_CERTS`` as
- :data:`~ssl.VERIFY_ALLOW_PROXY_CERTS` to allow proxy certificate
- validation as explained in
- https://www.openssl.org/docs/man1.1.1/man7/proxy-certificates.html.
-
-- bpo-31861: Add builtins.aiter and builtins.anext. Patch by Joshua Bronson
- (@jab), Daniel Pope (@lordmauve), and Justin Wang (@justin39).
-
-Documentation
--------------
-
-- bpo-43199: Answer "Why is there no goto?" in the Design and History FAQ.
-
-- bpo-43407: Clarified that a result from :func:`time.monotonic`,
- :func:`time.perf_counter`, :func:`time.process_time`, or
- :func:`time.thread_time` can be compared with the result from any
- following call to the same function - not just the next immediate call.
-
-- bpo-43354: Fix type documentation for ``Fault.faultCode``; the type has to
- be ``int`` instead of ``str``.
-
-- bpo-41933: Clarified wording of s * n in the Common Sequence Operations
-
-Tests
------
-
-- bpo-37945: Fix test_getsetlocale_issue1813() of test_locale: skip the test
- if ``setlocale()`` fails. Patch by Victor Stinner.
-
-- bpo-41561: Add workaround for Ubuntu's custom OpenSSL security level
- policy.
-
-Build
------
-
-- bpo-43179: Introduce and correctly use ALIGNOF_X in place of SIZEOF_X for
- alignment-related code in optimized string routines. Patch by Jessica
- Clarke.
-
-- bpo-43631: Update macOS, Windows, and CI to OpenSSL 1.1.1k.
-
-- bpo-43617: Improve configure.ac: Check for presence of autoconf-archive
- package and remove our copies of M4 macros.
-
-- bpo-43466: The ``configure`` script now supports ``--with-openssl-rpath``
- option.
-
-- bpo-43372: Use ``_freeze_importlib`` to generate code for the
- ``__hello__`` module. This approach ensures the code matches the
- interpreter version. Previously, PYTHON_FOR_REGEN was used to generate
- the code, which might be wrong. The marshal format for code objects has
- changed with bpo-42246, commit 877df851. Update the code and the expected
- code sizes in ctypes test_frozentable.
-
-Windows
--------
-
-- bpo-43440: Build :mod:`sqlite3` with the ``R*Tree`` module enabled. Patch
- by Erlend E. Aasland.
-
-IDLE
-----
-
-- bpo-42225: Document that IDLE can fail on Unix either from misconfigured
- IP masquerade rules or failure displaying complex colored (non-ascii)
- characters.
-
-C API
------
-
-- bpo-43688: The limited C API is now supported if Python is built in debug
- mode (if the ``Py_DEBUG`` macro is defined). In the limited C API, the
- :c:func:`Py_INCREF` and :c:func:`Py_DECREF` functions are now implemented
- as opaque function calls, rather than accessing directly the
- :c:member:`PyObject.ob_refcnt` member, if Python is built in debug mode
- and the ``Py_LIMITED_API`` macro targets Python 3.10 or newer. It became
- possible to support the limited C API in debug mode because the
- :c:type:`PyObject` structure is the same in release and debug mode since
- Python 3.8 (see :issue:`36465`).
-
- The limited C API is still not supported in the ``--with-trace-refs``
- special build (``Py_TRACE_REFS`` macro).
-
- Patch by Victor Stinner.
-
-- bpo-43244: Remove the ``pyarena.h`` header file with functions:
-
- * ``PyArena_New()``
- * ``PyArena_Free()``
- * ``PyArena_Malloc()``
- * ``PyArena_AddPyObject()``
-
- These functions were undocumented, excluded from the limited C API, and
- were only used internally by the compiler. Patch by Victor Stinner.
-
-- bpo-43244: Remove the compiler and parser functions using ``struct _mod``
- type, because the public AST C API was removed:
-
- * ``PyAST_Compile()``
- * ``PyAST_CompileEx()``
- * ``PyAST_CompileObject()``
- * ``PyFuture_FromAST()``
- * ``PyFuture_FromASTObject()``
- * ``PyParser_ASTFromFile()``
- * ``PyParser_ASTFromFileObject()``
- * ``PyParser_ASTFromFilename()``
- * ``PyParser_ASTFromString()``
- * ``PyParser_ASTFromStringObject()``
-
- These functions were undocumented and excluded from the limited C API.
- Patch by Victor Stinner.
-
-- bpo-43244: Remove ``ast.h``, ``asdl.h``, and ``Python-ast.h`` header
- files. These functions were undocumented and excluded from the limited C
- API. Most names defined by these header files were not prefixed by ``Py``
- and so could create names conflicts. For example, ``Python-ast.h`` defined
- a ``Yield`` macro which was conflict with the ``Yield`` name used by the
- Windows ``<winbase.h>`` header. Use the Python :mod:`ast` module instead.
- Patch by Victor Stinner.
-
-- bpo-43541: Fix a ``PyEval_EvalCodeEx()`` regression: fix reference
- counting on builtins. Patch by Victor Stinner.
-
-- bpo-43244: Remove the ``symtable.h`` header file and the undocumented
- functions:
-
- * ``PyST_GetScope()``
- * ``PySymtable_Build()``
- * ``PySymtable_BuildObject()``
- * ``PySymtable_Free()``
- * ``Py_SymtableString()``
- * ``Py_SymtableStringObject()``
-
- The ``Py_SymtableString()`` function was part the stable ABI by mistake
- but it could not be used, because the ``symtable.h`` header file was
- excluded from the limited C API.
-
- The Python :mod:`symtable` module remains available and is unchanged.
-
- Patch by Victor Stinner.
-
-- bpo-43244: Remove the ``PyAST_Validate()`` function. It is no longer
- possible to build a AST object (``mod_ty`` type) with the public C API.
- The function was already excluded from the limited C API (:pep:`384`).
- Patch by Victor Stinner.
-
-
-What's New in Python 3.10.0 alpha 6?
-====================================
-
-*Release date: 2021-03-01*
-
-Security
---------
-
-- bpo-42967: Fix web cache poisoning vulnerability by defaulting the query
- args separator to ``&``, and allowing the user to choose a custom
- separator.
-
-Core and Builtins
------------------
-
-- bpo-43321: Fix ``SystemError`` raised when ``PyArg_Parse*()`` is used with
- ``#`` but without ``PY_SSIZE_T_CLEAN`` defined.
-
-- bpo-36346: ``PyArg_Parse*()`` functions now emits ``DeprecationWarning``
- when ``u`` or ``Z`` format is used. See :pep:`623` for detail.
-
-- bpo-43277: Add a new :c:func:`PySet_CheckExact` function to the C-API to
- check if an object is an instance of :class:`set` but not an instance of a
- subtype. Patch by Pablo Galindo.
-
-- bpo-42990: The :data:`types.FunctionType` constructor now inherits the
- current builtins if the *globals* dictionary has no ``"__builtins__"``
- key, rather than using ``{"None": None}`` as builtins: same behavior as
- :func:`eval` and :func:`exec` functions. Defining a function with ``def
- function(...): ...`` in Python is not affected, globals cannot be
- overridden with this syntax: it also inherits the current builtins. Patch
- by Victor Stinner.
-
-- bpo-42990: Functions have a new ``__builtins__`` attribute which is used
- to look for builtin symbols when a function is executed, instead of
- looking into ``__globals__['__builtins__']``. Patch by Mark Shannon and
- Victor Stinner.
-
-- bpo-43149: Improve the error message in the parser for exception groups
- without parentheses. Patch by Pablo Galindo.
-
-- bpo-43121: Fixed an incorrect :exc:`SyntaxError` message for missing comma
- in literals. Patch by Pablo Galindo.
-
-- bpo-42819: :mod:`readline`: Explicitly disable bracketed paste in the
- interactive interpreter, even if it's set in the inputrc, is enabled by
- default (eg GNU Readline 8.1), or a user calls
- ``readline.read_init_file()``. The Python REPL has not implemented
- bracketed paste support. Also, bracketed mode writes the ``"\x1b[?2004h"``
- escape sequence into stdout which causes test failures in applications
- that don't support it. It can still be explicitly enabled by calling
- ``readline.parse_and_bind("set enable-bracketed-paste on")``. Patch by
- Dustin Rodrigues.
-
-- bpo-42808: Simple calls to ``type(object)`` are now faster due to the
- ``vectorcall`` calling convention. Patch by Dennis Sweeney.
-
-- bpo-42217: Make the compiler merges same co_code and co_linetable objects
- in a module like already did for co_consts.
-
-- bpo-41972: Substring search functions such as ``str1 in str2`` and
- ``str2.find(str1)`` now sometimes use the "Two-Way" string comparison
- algorithm to avoid quadratic behavior on long strings.
-
-- bpo-42128: Implement :pep:`634` (structural pattern matching). Patch by
- Brandt Bucher.
-
-- bpo-40692: In the :class:`concurrent.futures.ProcessPoolExecutor`,
- validate that :func:`multiprocess.synchronize` is available on a given
- platform and rely on that check in the :mod:`concurrent.futures` test
- suite so we can run tests that are unrelated to
- :class:`ProcessPoolExecutor` on those platforms.
-
-- bpo-38302: If :func:`object.__ipow__` returns :const:`NotImplemented`, the
- operator will correctly fall back to :func:`object.__pow__` and
- :func:`object.__rpow__` as expected.
-
-Library
--------
-
-- bpo-43316: The ``python -m gzip`` command line application now properly
- fails when detecting an unsupported extension. It exits with a non-zero
- exit code and prints an error message to stderr.
-
-- bpo-43317: Set the chunk size for the ``gzip`` module main function to
- io.DEFAULT_BUFFER_SIZE. This is slightly faster than the 1024 bytes
- constant that was used previously.
-
-- bpo-43146: Handle None in single-arg versions of
- :func:`~traceback.print_exception` and
- :func:`~traceback.format_exception`.
-
-- bpo-43260: Fix TextIOWrapper can not flush internal buffer forever after
- very large text is written.
-
-- bpo-43258: Prevent needless allocation of :mod:`sqlite3` aggregate
- function context when no rows match an aggregate query. Patch by Erlend E.
- Aasland.
-
-- bpo-43251: Improve :mod:`sqlite3` error handling:
- ``sqlite3_column_name()`` failures now result in :exc:`MemoryError`. Patch
- by Erlend E. Aasland.
-
-- bpo-40956: Fix segfault in :meth:`sqlite3.Connection.backup` if no
- argument was provided. The regression was introduced by PR 23838. Patch by
- Erlend E. Aasland.
-
-- bpo-43172: The readline module now passes its tests when built directly
- against libedit. Existing irreconcilable API differences remain in
- :func:`readline.get_begidx` and :func:`readline.get_endidx` behavior based
- on libreadline vs libedit use.
-
-- bpo-43163: Fix a bug in :mod:`codeop` that was causing it to not ask for
- more input when multi-line snippets have unclosed parentheses. Patch by
- Pablo Galindo
-
-- bpo-43162: deprecate unsupported ability to access enum members as
- attributes of other enum members
-
-- bpo-43146: Fix recent regression in None argument handling in
- :mod:`~traceback` module functions.
-
-- bpo-43102: The namedtuple __new__ method had its __builtins__ set to None
- instead of an actual dictionary. This created problems for introspection
- tools.
-
-- bpo-43106: Added :data:`~os.O_EVTONLY`, :data:`~os.O_FSYNC`,
- :data:`~os.O_SYMLINK` and :data:`~os.O_NOFOLLOW_ANY` for macOS. Patch by
- Dong-hee Na.
-
-- bpo-42960: Adds :data:`resource.RLIMIT_KQUEUES` constant from FreeBSD to
- the :mod:`resource` module.
-
-- bpo-42151: Make the pure Python implementation of
- :mod:`xml.etree.ElementTree` behave the same as the C implementation
- (:mod:`_elementree`) regarding default attribute values (by not setting
- ``specified_attributes=1``).
-
-- bpo-29753: In ctypes, now packed bitfields are calculated properly and the
- first item of packed bitfields is now shrank correctly.
-
-Documentation
--------------
-
-- bpo-27646: Clarify that 'yield from <expr>' works with any iterable, not
- just iterators.
-
-- bpo-36346: Update some deprecated unicode APIs which are documented as
- "will be removed in 4.0" to "3.12". See :pep:`623` for detail.
-
-Tests
------
-
-- bpo-43288: Fix test_importlib to correctly skip Unicode file tests if the
- filesystem does not support them.
-
-Build
------
-
-- bpo-43174: Windows build now uses ``/utf-8`` compiler option.
-
-- bpo-43103: Add a new configure ``--without-static-libpython`` option to
- not build the ``libpythonMAJOR.MINOR.a`` static library and not install
- the ``python.o`` object file.
-
-- bpo-13501: The configure script can now use *libedit* instead of
- *readline* with the command line option ``--with-readline=editline``.
-
-- bpo-42603: Make configure script use pkg-config to detect the location of
- Tcl/Tk headers and libraries, used to build tkinter.
-
- On macOS, a Tcl/Tk configuration provided by pkg-config will be preferred
- over Tcl/Tk frameworks installed in ``/{System/,}Library/Frameworks``. If
- both exist and the latter is preferred, the appropriate ``--with-tcltk-*``
- configuration options need to be explicitly set.
-
-- bpo-39448: Add the "regen-frozen" makefile target that regenerates the
- code for the frozen ``__hello__`` module.
-
-Windows
--------
-
-- bpo-43155: :c:func:`PyCMethod_New` is now present in ``python3.lib``.
-
-macOS
------
-
-- bpo-41837: Update macOS installer build to use OpenSSL 1.1.1j.
-
-IDLE
-----
-
-- bpo-43283: Document why printing to IDLE's Shell is often slower than
- printing to a system terminal and that it can be made faster by
- pre-formatting a single string before printing.
-
-C API
------
-
-- bpo-43278: Always put compiler and system information on the first line of
- the REPL welcome message.
-
-- bpo-43270: Remove the private ``_PyErr_OCCURRED()`` macro: use the public
- :c:func:`PyErr_Occurred` function instead.
-
-- bpo-35134: Move odictobject.h, parser_interface.h, picklebufobject.h,
- pydebug.h, and pyfpe.h into the cpython/ directory. They must not be
- included directly, as they are already included by Python.h: :ref:`Include
- Files <api-includes>`.
-
-- bpo-35134: Move pyarena.h, pyctype.h, and pytime.h into the cpython/
- directory. They must not be included directly, as they are already
- included by Python.h: :ref:`Include Files <api-includes>`.
-
-- bpo-40170: :c:func:`PyExceptionClass_Name` is now always declared as a
- function, in order to hide implementation details. The macro accessed
- :c:member:`PyTypeObject.tp_name` directly. Patch by Erlend E. Aasland.
-
-- bpo-43239: The :c:func:`PyCFunction_New` function is now exported in the
- ABI when compiled with ``-fvisibility=hidden``.
-
-- bpo-40170: :c:func:`PyIter_Check` is now always declared as a function, in
- order to hide implementation details. The macro accessed
- :c:member:`PyTypeObject.tp_iternext` directly. Patch by Erlend E. Aasland.
-
-- bpo-40170: Convert :c:func:`PyDescr_IsData` macro to a function to hide
- implementation details: The macro accessed
- :c:member:`PyTypeObject.tp_descr_set` directly. Patch by Erlend E.
- Aasland.
-
-- bpo-43181: Convert :c:func:`PyObject_TypeCheck` macro to a static inline
- function. Patch by Erlend E. Aasland.
-
-
-What's New in Python 3.10.0 alpha 5?
-====================================
-
-*Release date: 2021-02-02*
-
-Security
---------
-
-- bpo-42938: Avoid static buffers when computing the repr of
- :class:`ctypes.c_double` and :class:`ctypes.c_longdouble` values.
-
-Core and Builtins
------------------
-
-- bpo-42990: Refactor the ``PyEval_`` family of functions.
-
- * An new function ``_PyEval_Vector`` is added to simplify calls to Python from C.
- * ``_PyEval_EvalCodeWithName`` is removed
- * ``PyEval_EvalCodeEx`` is retained as part of the API, but is not used internally
-
-- bpo-38631: Replace :c:func:`Py_FatalError` calls in the compiler with
- regular :exc:`SystemError` exceptions. Patch by Victor Stinner.
-
-- bpo-42997: Improve error message for missing ":" before blocks. Patch by
- Pablo Galindo.
-
-- bpo-43017: Improve error message in the parser when using un-parenthesised
- tuples in comprehensions. Patch by Pablo Galindo.
-
-- bpo-42986: Fix parser crash when reporting syntax errors in f-string with
- newlines. Patch by Pablo Galindo.
-
-- bpo-40176: Syntax errors for unterminated string literals now point to the
- start of the string instead of reporting EOF/EOL.
-
-- bpo-42927: The inline cache for ``LOAD_ATTR`` now also optimizes access to
- attributes defined by ``__slots__``. This makes reading such attribute up
- to 30% faster.
-
-- bpo-42864: Improve error messages in the parser when parentheses are not
- closed. Patch by Pablo Galindo.
-
-- bpo-42924: Fix ``bytearray`` repetition incorrectly copying data from the
- start of the buffer, even if the data is offset within the buffer (e.g.
- after reassigning a slice at the start of the ``bytearray`` to a shorter
- byte string).
-
-- bpo-42882: Fix the :c:func:`_PyUnicode_FromId` function
- (_Py_IDENTIFIER(var) API) when :c:func:`Py_Initialize` /
- :c:func:`Py_Finalize` is called multiple times: preserve
- ``_PyRuntime.unicode_ids.next_index`` value.
-
-- bpo-42827: Fix a crash when working out the error line of a
- :exc:`SyntaxError` in some multi-line expressions.
-
-- bpo-42823: frame.f_lineno is correct even if frame.f_trace is set to True
-
-- bpo-37324: Remove deprecated aliases to
- :ref:`collections-abstract-base-classes` from the :mod:`collections`
- module.
-
-- bpo-41994: Fixed possible leak in ``import`` when ``sys.modules`` is not a
- ``dict``.
-
-- bpo-27772: In string formatting, preceding the *width* field by ``'0'`` no
- longer affects the default alignment for strings.
-
-Library
--------
-
-- bpo-43108: Fixed a reference leak in the :mod:`curses` module. Patch by
- Pablo Galindo
-
-- bpo-43077: Update the bundled pip to 21.0.1 and setuptools to 52.0.0.
-
-- bpo-41282: Deprecate ``distutils`` in documentation and add warning on
- import.
-
-- bpo-43014: Improve performance of :mod:`tokenize` by 20-30%. Patch by
- Anthony Sottile.
-
-- bpo-42323: Fix :func:`math.nextafter` for NaN on AIX.
-
-- bpo-42955: Add :data:`sys.stdlib_module_names`, containing the list of the
- standard library module names. Patch by Victor Stinner.
-
-- bpo-42944: Fix ``random.Random.sample`` when ``counts`` argument is not
- ``None``.
-
-- bpo-42934: Use :class:`~traceback.TracebackException`'s new ``compact``
- param in :class:`~unittest.TestResult` to reduce time and memory consumed
- by traceback formatting.
-
-- bpo-42931: Add :func:`randbytes` to ``random.__all__``.
-
-- bpo-38250: [Enum] Flags consisting of a single bit are now considered
- canonical, and will be the only flags returned from listing and iterating
- over a Flag class or a Flag member. Multi-bit flags are considered
- aliases; they will be returned from lookups and operations that result in
- their value. Iteration for both Flag and Flag members is in definition
- order.
-
-- bpo-42877: Added the ``compact`` parameter to the constructor of
- :class:`traceback.TracebackException` to reduce time and memory for use
- cases that only need to call :func:`TracebackException.format` and
- :func:`TracebackException.format_exception_only`.
-
-- bpo-42923: The :c:func:`Py_FatalError` function and the
- :mod:`faulthandler` module now dump the list of extension modules on a
- fatal error.
-
-- bpo-42848: Removed recursion from :class:`~traceback.TracebackException`
- to allow it to handle long exception chains.
-
-- bpo-42901: [Enum] move member creation from ``EnumMeta.__new__`` to
- ``_proto_member.__set_name__``, allowing members to be created and visible
- in ``__init_subclass__``.
-
-- bpo-42780: Fix os.set_inheritable() for O_PATH file descriptors on Linux.
-
-- bpo-42866: Fix a reference leak in the ``getcodec()`` function of CJK
- codecs. Patch by Victor Stinner.
-
-- bpo-42846: Convert the 6 CJK codec extension modules (_codecs_cn,
- _codecs_hk, _codecs_iso2022, _codecs_jp, _codecs_kr and _codecs_tw) to the
- multiphase initialization API (:pep:`489`). Patch by Victor Stinner.
-
-- bpo-42851: remove __init_subclass__ support for Enum members
-
-- bpo-42834: Make internal caches of the ``_json`` module compatible with
- subinterpreters.
-
-- bpo-41748: Fix HTMLParser parsing rules for element attributes containing
- commas with spaces. Patch by Karl Dubost.
-
-- bpo-40810: Require SQLite 3.7.15 or newer. Patch by Erlend E. Aasland.
-
-- bpo-1635741: Convert the _multibytecodec extension module (CJK codecs) to
- multi-phase initialization (:pep:`489`). Patch by Erlend E. Aasland.
-
-- bpo-42802: The distutils ``bdist_wininst`` command deprecated in Python
- 3.8 has been removed. The distutils ``bdist_wheel`` command is now
- recommended to distribute binary packages on Windows.
-
-- bpo-24464: The undocumented built-in function
- ``sqlite3.enable_shared_cache`` is now deprecated, scheduled for removal
- in Python 3.12. Its use is strongly discouraged by the SQLite3
- documentation. Patch by Erlend E. Aasland.
-
-- bpo-42384: Make pdb populate sys.path[0] exactly the same as regular
- python execution.
-
-- bpo-42383: Fix pdb: previously pdb would fail to restart the debugging
- target if it was specified using a relative path and the current directory
- changed.
-
-- bpo-42005: Fix CLI of :mod:`cProfile` and :mod:`profile` to catch
- :exc:`BrokenPipeError`.
-
-- bpo-41604: Don't decrement the reference count of the previous user_ptr
- when set_panel_userptr fails.
-
-- bpo-41149: Allow executing callables that have a boolean value of
- ``False`` when passed to :class:`Threading.thread` as the target. Patch
- contributed by Barney Stratford.
-
-- bpo-38307: Add an 'end_lineno' attribute to the Class and Function objects
- that appear in the tree returned by pyclbr functions. This and the
- existing 'lineno' attribute define the extent of class and def statements.
- Patch by Aviral Srivastava.
-
-- bpo-39273: The ``BUTTON5_*`` constants are now exposed in the
- :mod:`curses` module if available.
-
-- bpo-33289: Correct call to :mod:`tkinter.colorchooser` to return RGB
- triplet of ints instead of floats. Patch by Cheryl Sabella.
-
-Documentation
--------------
-
-- bpo-40304: Fix doc for type(name, bases, dict). Patch by Boris
- Verkhovskiy and Éric Araujo.
-
-- bpo-42811: Updated importlib.utils.resolve_name() doc to use
- __spec__.parent instead of __package__. (Thanks Yair Frid.)
-
-Tests
------
-
-- bpo-40823: Use :meth:`unittest.TestLoader().loadTestsFromTestCase` instead
- of :meth:`unittest.makeSuite` in :mod:`sqlite3` tests. Patch by Erlend E.
- Aasland.
-
-- bpo-40810: In :mod:`sqlite3`, fix ``CheckTraceCallbackContent`` for SQLite
- pre 3.7.15.
-
-Build
------
-
-- bpo-43031: Pass ``--timeout=$(TESTTIMEOUT)`` option to the default profile
- task ``./python -m test --pgo`` command.
-
-- bpo-36143: ``make regen-all`` now also runs ``regen-keyword``. Patch by
- Victor Stinner.
-
-- bpo-42874: Removed the grep -q and -E flags in the tzpath validation
- section of the configure script to better accommodate users of some
- platforms (specifically Solaris 10).
-
-- bpo-31904: Add library search path by wr-cc in add_cross_compiling_paths()
- for VxWorks.
-
-- bpo-42856: Add ``--with-wheel-pkg-dir=PATH`` option to the ``./configure``
- script. If specified, the :mod:`ensurepip` module looks for ``setuptools``
- and ``pip`` wheel packages in this directory: if both are present, these
- wheel packages are used instead of ensurepip bundled wheel packages.
-
- Some Linux distribution packaging policies recommend against bundling
- dependencies. For example, Fedora installs wheel packages in the
- ``/usr/share/python-wheels/`` directory and don't install the
- ``ensurepip._bundled`` package.
-
-Windows
--------
-
-- bpo-41837: Updated Windows installer to include OpenSSL 1.1.1i
-
-- bpo-42584: Upgrade Windows installer to use SQLite 3.34.0.
-
-macOS
------
-
-- bpo-42504: Ensure that the value of
- sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET') is always a string,
- even in when the value is parsable as an integer.
-
-IDLE
-----
-
-- bpo-43008: Make IDLE invoke :func:`sys.excepthook` in normal, 2-process
- mode. Patch by Ken Hilton.
-
-- bpo-33065: Fix problem debugging user classes with __repr__ method.
-
-- bpo-23544: Disable Debug=>Stack Viewer when user code is running or
- Debugger is active, to prevent hang or crash. Patch by Zackery Spytz.
-
-- bpo-32631: Finish zzdummy example extension module: make menu entries
- work; add docstrings and tests with 100% coverage.
-
-C API
------
-
-- bpo-42979: When Python is built in debug mode (with C assertions), calling
- a type slot like ``sq_length`` (``__len__()`` in Python) now fails with a
- fatal error if the slot succeeded with an exception set, or failed with no
- exception set. The error message contains the slot, the type name, and the
- current exception (if an exception is set). Patch by Victor Stinner.
-
-- bpo-43030: Fixed a compiler warning in :c:func:`Py_UNICODE_ISSPACE()` on
- platforms with signed ``wchar_t``.
-
-
-What's New in Python 3.10.0 alpha 4?
-====================================
-
-*Release date: 2021-01-04*
-
-Core and Builtins
------------------
-
-- bpo-42814: Fix undefined behavior in ``Objects/genericaliasobject.c``.
-
-- bpo-42806: Fix the column offsets for f-strings :mod:`ast` nodes
- surrounded by parentheses and for nodes that spawn multiple lines. Patch
- by Pablo Galindo.
-
-- bpo-40631: Fix regression where a single parenthesized starred expression
- was a valid assignment target.
-
-- bpo-27794: Improve the error message for failed writes/deletes to property
- objects. When possible, the attribute name is now shown. Patch provided by
- Yurii Karabas.
-
-- bpo-42745: Make the type attribute lookup cache per-interpreter. Patch by
- Victor Stinner.
-
-- bpo-42246: Jumps to jumps are not eliminated when it would break PEP 626.
-
-- bpo-42246: Make sure that the ``f_lasti`` and ``f_lineno`` attributes of a
- frame are set correctly when an exception is raised or re-raised. Required
- for PEP 626.
-
-- bpo-32381: The coding cookie (ex: ``# coding: latin1``) is now ignored in
- the command passed to the :option:`-c` command line option. Patch by
- Victor Stinner.
-
-- bpo-30858: Improve error location in expressions that contain assignments.
- Patch by Pablo Galindo and Lysandros Nikolaou.
-
-- bpo-42615: Remove jump commands made redundant by the deletion of
- unreachable bytecode blocks
-
-- bpo-42639: Make the :mod:`atexit` module state per-interpreter. It is now
- safe have more than one :mod:`atexit` module instance. Patch by Dong-hee
- Na and Victor Stinner.
-
-- bpo-32381: Fix encoding name when running a ``.pyc`` file on Windows:
- :c:func:`PyRun_SimpleFileExFlags()` now uses the correct encoding to
- decode the filename.
-
-- bpo-42195: The ``__args__`` of the parameterized generics for
- :data:`typing.Callable` and :class:`collections.abc.Callable` are now
- consistent. The ``__args__`` for :class:`collections.abc.Callable` are
- now flattened while :data:`typing.Callable`'s have not changed. To allow
- this change, :class:`types.GenericAlias` can now be subclassed and
- ``collections.abc.Callable``'s ``__class_getitem__`` will now return a
- subclass of ``types.GenericAlias``. Tests for typing were also updated to
- not subclass things like ``Callable[..., T]`` as that is not a valid base
- class. Finally, both ``Callable``\ s no longer validate their
- ``argtypes``, in ``Callable[[argtypes], resulttype]`` to prepare for
- :pep:`612`. Patch by Ken Jin.
-
-- bpo-40137: Convert functools module to use
- :c:func:`PyType_FromModuleAndSpec`.
-
-- bpo-40077: Convert :mod:`array` to use heap types, and establish module
- state for these.
-
-- bpo-42008: Fix _random.Random() seeding.
-
-- bpo-1635741: Port the :mod:`pyexpat` extension module to multi-phase
- initialization (:pep:`489`).
-
-- bpo-40521: Make the Unicode dictionary of interned strings compatible with
- subinterpreters. Patch by Victor Stinner.
-
-- bpo-39465: Make :c:func:`_PyUnicode_FromId` function compatible with
- subinterpreters. Each interpreter now has an array of identifier objects
- (interned strings decoded from UTF-8). Patch by Victor Stinner.
-
-Library
--------
-
-- bpo-42257: Handle empty string in variable executable in
- platform.libc_ver()
-
-- bpo-42772: randrange() now raises a TypeError when step is specified
- without a stop argument. Formerly, it silently ignored the step argument.
-
-- bpo-42759: Fixed equality comparison of :class:`tkinter.Variable` and
- :class:`tkinter.font.Font`. Objects which belong to different Tcl
- interpreters are now always different, even if they have the same name.
-
-- bpo-42756: Configure LMTP Unix-domain socket to use socket global default
- timeout when a timeout is not explicitly provided.
-
-- bpo-23328: Allow / character in username, password fields on _PROXY
- envars.
-
-- bpo-42740: :func:`typing.get_args` and :func:`typing.get_origin` now
- support :pep:`604` union types and :pep:`612` additions to ``Callable``.
-
-- bpo-42655: :mod:`subprocess` *extra_groups* is now correctly passed into
- setgroups() system call.
-
-- bpo-42727: ``EnumMeta.__prepare__`` now accepts ``**kwds`` to properly
- support ``__init_subclass__``
-
-- bpo-38308: Add optional *weights* to *statistics.harmonic_mean()*.
-
-- bpo-42721: When simple query dialogs (:mod:`tkinter.simpledialog`),
- message boxes (:mod:`tkinter.messagebox`) or color choose dialog
- (:mod:`tkinter.colorchooser`) are created without arguments *master* and
- *parent*, and the default root window is not yet created, and
- :func:`~tkinter.NoDefaultRoot` was not called, a new temporal hidden root
- window will be created automatically. It will not be set as the default
- root window and will be destroyed right after closing the dialog window.
- It will help to use these simple dialog windows in programs which do not
- need other GUI.
-
-- bpo-25246: Optimized :meth:`collections.deque.remove`.
-
-- bpo-35728: Added a root parameter to :func:`tkinter.font.nametofont`.
-
-- bpo-15303: :mod:`tkinter` supports now widgets with boolean value False.
-
-- bpo-42681: Fixed range checks for color and pair numbers in :mod:`curses`.
-
-- bpo-42685: Improved placing of simple query windows in Tkinter (such as
- :func:`tkinter.simpledialog.askinteger`). They are now centered at the
- center of the parent window if it is specified and shown, otherwise at the
- center of the screen.
-
-- bpo-9694: Argparse help no longer uses the confusing phrase, "optional
- arguments". It uses "options" instead.
-
-- bpo-1635741: Port the :mod:`_thread` extension module to the multiphase
- initialization API (:pep:`489`) and convert its static types to heap
- types.
-
-- bpo-37961: Fix crash in :func:`tracemalloc.Traceback.__repr__` (regressed
- in Python 3.9).
-
-- bpo-42630: :mod:`tkinter` functions and constructors which need a default
- root window raise now :exc:`RuntimeError` with descriptive message instead
- of obscure :exc:`AttributeError` or :exc:`NameError` if it is not created
- yet or cannot be created automatically.
-
-- bpo-42639: :func:`atexit._run_exitfuncs` now logs callback exceptions
- using :data:`sys.unraisablehook`, rather than logging them directly into
- :data:`sys.stderr` and raise the last exception.
-
-- bpo-42644: ``logging.disable`` will now validate the types and value of
- its parameter. It also now accepts strings representing the levels (as
- does ``loging.setLevel``) instead of only the numerical values.
-
-- bpo-42639: At Python exit, if a callback registered with
- :func:`atexit.register` fails, its exception is now logged. Previously,
- only some exceptions were logged, and the last exception was always
- silently ignored.
-
-- bpo-36541: Fixed lib2to3.pgen2 to be able to parse PEP-570 positional only
- argument syntax.
-
-- bpo-42382: In ``importlib.metadata``: - ``EntryPoint`` objects now expose
- a ``.dist`` object referencing the ``Distribution`` when constructed from
- a ``Distribution``. - Add support for package discovery under package
- normalization rules. - The object returned by ``metadata()`` now has a
- formally defined protocol called ``PackageMetadata`` with declared support
- for the ``.get_all()`` method. - Synced with importlib_metadata 3.3.
-
-- bpo-41877: A check is added against misspellings of autospect, auto_spec
- and set_spec being passed as arguments to patch, patch.object and
- create_autospec.
-
-- bpo-39717: [tarfile] update nested exception raising to use ``from None``
- or ``from e``
-
-- bpo-41877: AttributeError for suspected misspellings of assertions on
- mocks are now pointing out that the cause are misspelled assertions and
- also what to do if the misspelling is actually an intended attribute name.
- The unittest.mock document is also updated to reflect the current set of
- recognised misspellings.
-
-- bpo-41559: Implemented :pep:`612`: added ``ParamSpec`` and ``Concatenate``
- to :mod:`typing`. Patch by Ken Jin.
-
-- bpo-42385: StrEnum: fix _generate_next_value_ to return a str
-
-- bpo-31904: Define THREAD_STACK_SIZE for VxWorks.
-
-- bpo-34750: [Enum] `_EnumDict.update()` is now supported
-
-- bpo-42517: Enum: private names do not become members / do not generate
- errors -- they remain normal attributes
-
-- bpo-42678: ``Enum``: call ``__init_subclass__`` after members have been
- added
-
-- bpo-28964: :func:`ast.literal_eval` adds line number information (if
- available) in error message for malformed nodes.
-
-- bpo-42470: :func:`random.sample` no longer warns on a sequence which is
- also a set.
-
-- bpo-31904: :func:`posixpath.expanduser` returns the input *path* unchanged
- if user home directory is None on VxWorks.
-
-- bpo-42388: Fix subprocess.check_output(..., input=None) behavior when
- text=True to be consistent with that of the documentation and
- universal_newlines=True.
-
-- bpo-34463: Fixed discrepancy between :mod:`traceback` and the interpreter
- in formatting of SyntaxError with lineno not set (:mod:`traceback` was
- changed to match interpreter).
-
-- bpo-42393: Raise :exc:`OverflowError` instead of silent truncation in
- :meth:`socket.ntohs` and :meth:`socket.htons`. Silent truncation was
- deprecated in Python 3.7. Patch by Erlend E. Aasland
-
-- bpo-42222: Harmonized :func:`random.randrange` argument handling to match
- :func:`range`.
-
- * The integer test and conversion in ``randrange()`` now uses
- :func:`operator.index`.
- * Non-integer arguments to ``randrange()`` are deprecated.
- * The ``ValueError`` is deprecated in favor of a ``TypeError``.
- * It now runs a little faster than before.
-
- (Contributed by Raymond Hettinger and Serhiy Storchaka.)
-
-- bpo-42163: Restore compatibility for ``uname_result`` around deepcopy and
- _replace.
-
-- bpo-42090: ``zipfile.Path.joinpath`` now accepts arbitrary arguments, same
- as ``pathlib.Path.joinpath``.
-
-- bpo-1635741: Port the _csv module to the multi-phase initialization API
- (:pep:`489`).
-
-- bpo-42059: :class:`typing.TypedDict` types created using the alternative
- call-style syntax now correctly respect the ``total`` keyword argument
- when setting their ``__required_keys__`` and ``__optional_keys__`` class
- attributes.
-
-- bpo-41960: Add ``globalns`` and ``localns`` parameters to the
- :func:`inspect.signature` and :meth:`inspect.Signature.from_callable`.
-
-- bpo-41907: fix ``format()`` behavior for ``IntFlag``
-
-- bpo-41891: Ensure asyncio.wait_for waits for task completion
-
-- bpo-24792: Fixed bug where :mod:`zipimporter` sometimes reports an
- incorrect cause of import errors.
-
-- bpo-31904: Fix site and sysconfig modules for VxWorks RTOS which has no
- home directories.
-
-- bpo-41462: Add :func:`os.set_blocking()` support for VxWorks RTOS.
-
-- bpo-40219: Lowered :class:`tkinter.ttk.LabeledScale` dummy widget to
- prevent hiding part of the content label.
-
-- bpo-37193: Fixed memory leak in ``socketserver.ThreadingMixIn`` introduced
- in Python 3.7.
-
-- bpo-39068: Fix initialization race condition in :func:`a85encode` and
- :func:`b85encode` in :mod:`base64`. Patch by Brandon Stansbury.
-
-Documentation
--------------
-
-- bpo-17140: Add documentation for the
- :class:`multiprocessing.pool.ThreadPool` class.
-
-- bpo-34398: Prominently feature listings from the glossary in documentation
- search results. Patch by Ammar Askar.
-
-Tests
------
-
-- bpo-42794: Update test_nntplib to use official group name of news.aioe.org
- for testing. Patch by Dong-hee Na.
-
-- bpo-31904: Skip some asyncio tests on VxWorks.
-
-- bpo-42641: Enhance ``test_select.test_select()``: it now takes 500
- milliseconds rather than 10 seconds. Use Python rather than a shell to
- make the test more portable.
-
-- bpo-31904: Skip some tests in _test_all_chown_common() on VxWorks.
-
-- bpo-42199: Fix bytecode helper assertNotInBytecode.
-
-- bpo-41443: Add more attribute checking in test_posix.py
-
-- bpo-31904: Disable os.popen and impacted tests on VxWorks
-
-- bpo-41439: Port test_ssl and test_uuid to VxWorks RTOS.
-
-Build
------
-
-- bpo-42692: Fix __builtin_available check on older compilers. Patch by
- Joshua Root.
-
-- bpo-27640: Added ``--disable-test-modules`` option to the ``configure``
- script: don't build nor install test modules. Patch by Xavier de Gaye,
- Thomas Petazzoni and Peixing Xin.
-
-- bpo-42604: Now all platforms use a value for the "EXT_SUFFIX" build
- variable derived from SOABI (for instance in freeBSD, "EXT_SUFFIX" is now
- ".cpython-310d.so" instead of ".so"). Previously only Linux, Mac and
- VxWorks were using a value for "EXT_SUFFIX" that included "SOABI".
-
-- bpo-42598: Fix implicit function declarations in configure which could
- have resulted in incorrect configuration checks. Patch contributed by
- Joshua Root.
-
-- bpo-31904: Enable libpython3.so for VxWorks.
-
-- bpo-29076: Add fish shell support to macOS installer.
-
-macOS
------
-
-- bpo-42361: Update macOS installer build to use Tcl/Tk 8.6.11 (rc2,
- expected to be final release).
-
-- bpo-41837: Update macOS installer build to use OpenSSL 1.1.1i.
-
-- bpo-42584: Update macOS installer to use SQLite 3.34.0.
-
-Tools/Demos
------------
-
-- bpo-42726: Fixed Python 3 compatibility issue with gdb/libpython.py
- handling of attribute dictionaries.
-
-- bpo-42613: Fix ``freeze.py`` tool to use the prope config and library
- directories. Patch by Victor Stinner.
-
-C API
------
-
-- bpo-42591: Export the :c:func:`Py_FrozenMain` function: fix a Python 3.9.0
- regression. Python 3.9 uses ``-fvisibility=hidden`` and the function was
- not exported explicitly and so not exported.
-
-- bpo-32381: Remove the private :c:func:`_Py_fopen` function which is no
- longer needed. Use :c:func:`_Py_wfopen` or :c:func:`_Py_fopen_obj`
- instead. Patch by Victor Stinner.
-
-- bpo-1635741: Port :mod:`resource` extension module to module state
-
-- bpo-42111: Update the ``xxlimited`` module to be a better example of how
- to use the limited C API.
-
-- bpo-40052: Fix an alignment build warning/error in function
- ``PyVectorcall_Function()``. Patch by Andreas Schneider, Antoine Pitrou
- and Petr Viktorin.
-
-
-What's New in Python 3.10.0 alpha 3?
-====================================
-
-*Release date: 2020-12-07*
-
-Security
---------
-
-- bpo-40791: Add ``volatile`` to the accumulator variable in
- ``hmac.compare_digest``, making constant-time-defeating optimizations less
- likely.
-
-Core and Builtins
------------------
-
-- bpo-42576: ``types.GenericAlias`` will now raise a ``TypeError`` when
- attempting to initialize with a keyword argument. Previously, this would
- cause the interpreter to crash if the interpreter was compiled with debug
- symbols. This does not affect interpreters compiled for release. Patch by
- Ken Jin.
-
-- bpo-42536: Several built-in and standard library types now ensure that
- their internal result tuples are always tracked by the :term:`garbage
- collector <garbage collection>`:
-
- - :meth:`collections.OrderedDict.items() <collections.OrderedDict>`
-
- - :meth:`dict.items`
-
- - :func:`enumerate`
-
- - :func:`functools.reduce`
-
- - :func:`itertools.combinations`
-
- - :func:`itertools.combinations_with_replacement`
-
- - :func:`itertools.permutations`
-
- - :func:`itertools.product`
-
- - :func:`itertools.zip_longest`
-
- - :func:`zip`
-
- Previously, they could have become untracked by a prior garbage
- collection. Patch by Brandt Bucher.
-
-- bpo-42500: Improve handling of exceptions near recursion limit. Converts a
- number of Fatal Errors in RecursionErrors.
-
-- bpo-42246: PEP 626: After a return, the f_lineno attribute of a frame is
- always the last line executed.
-
-- bpo-42435: Speed up comparison of bytes objects with non-bytes objects
- when option :option:`-b` is specified. Speed up comparison of bytarray
- objects with non-buffer object.
-
-- bpo-1635741: Port the ``_warnings`` extension module to the multi-phase
- initialization API (:pep:`489`). Patch by Victor Stinner.
-
-- bpo-41686: On Windows, the ``SIGINT`` event, ``_PyOS_SigintEvent()``, is
- now created even if Python is configured to not install signal handlers
- (if :c:member:`PyConfig.install_signal_handlers` equals to 0, or
- ``Py_InitializeEx(0)``).
-
-- bpo-42381: Allow assignment expressions in set literals and set
- comprehensions as per PEP 572. Patch by Pablo Galindo.
-
-- bpo-42202: Change function parameters annotations internal representation
- to tuple of strings. Patch provided by Yurii Karabas.
-
-- bpo-42374: Fix a regression introduced by the new parser, where an
- unparenthesized walrus operator was not allowed within generator
- expressions.
-
-- bpo-42316: Allow an unparenthesized walrus in subscript indexes.
-
-- bpo-42349: Make sure that the compiler front-end produces a well-formed
- control flow graph. Be be more aggressive in the compiler back-end, as it
- is now safe to do so.
-
-- bpo-42296: On Windows, fix a regression in signal handling which prevented
- to interrupt a program using CTRL+C. The signal handler can be run in a
- thread different than the Python thread, in which case the test deciding
- if the thread can handle signals is wrong.
-
-- bpo-42332: :class:`types.GenericAlias` objects can now be the targets of
- weakrefs.
-
-- bpo-42282: Optimise constant subexpressions that appear as part of named
- expressions (previously the AST optimiser did not descend into named
- expressions). Patch by Nick Coghlan.
-
-- bpo-42266: Fixed a bug with the LOAD_ATTR opcode cache that was not
- respecting monkey-patching a class-level attribute to make it a
- descriptor. Patch by Pablo Galindo.
-
-- bpo-40077: Convert :mod:`queue` to use heap types.
-
-- bpo-42246: Improved accuracy of line tracing events and f_lineno attribute
- of Frame objects. See PEP 626 for details.
-
-- bpo-40077: Convert :mod:`mmap` to use heap types.
-
-- bpo-42233: Allow ``GenericAlias`` objects to use :ref:`union type
- expressions <types-union>`. This allows expressions like ``list[int] |
- dict[float, str]`` where previously a ``TypeError`` would have been
- thrown. This also fixes union type expressions not de-duplicating
- ``GenericAlias`` objects. (Contributed by Ken Jin in :issue:`42233`.)
-
-- bpo-26131: The import system triggers a `ImportWarning` when it falls back
- to using `load_module()`.
-
-Library
--------
-
-- bpo-5054: CGIHTTPRequestHandler.run_cgi() HTTP_ACCEPT improperly parsed.
- Replace the special purpose getallmatchingheaders with generic get_all
- method and add relevant tests.
-
- Original Patch by Martin Panter. Modified by Senthil Kumaran.
-
-- bpo-42562: Fix issue when dis failed to parse function that has no line
- numbers. Patch provided by Yurii Karabas.
-
-- bpo-17735: :func:`inspect.findsource` now raises :exc:`OSError` instead of
- :exc:`IndexError` when :attr:`co_lineno` of a code object is greater than
- the file length. This can happen, for example, when a file is edited after
- it was imported. PR by Irit Katriel.
-
-- bpo-42116: Fix handling of trailing comments by :func:`inspect.getsource`.
-
-- bpo-42532: Remove unexpected call of ``__bool__`` when passing a
- ``spec_arg`` argument to a Mock.
-
-- bpo-38200: Added itertools.pairwise()
-
-- bpo-41818: Fix test_master_read() so that it succeeds on all platforms
- that either raise OSError or return b"" upon reading from master.
-
-- bpo-42487: ChainMap.__iter__ no longer calls __getitem__ on underlying
- maps
-
-- bpo-42482: :class:`~traceback.TracebackException` no longer holds a
- reference to the exception's traceback object. Consequently, instances of
- TracebackException for equivalent but non-equal exceptions now compare as
- equal.
-
-- bpo-41818: Make test_openpty() avoid unexpected success due to number of
- rows and/or number of columns being == 0.
-
-- bpo-42392: Remove loop parameter from ``asyncio.subprocess`` and
- ``asyncio.tasks`` functions. Patch provided by Yurii Karabas.
-
-- bpo-42392: Remove loop parameter from ``asyncio.open_connection`` and
- ``asyncio.start_server`` functions. Patch provided by Yurii Karabas.
-
-- bpo-28468: Add :func:`platform.freedesktop_os_release` function to parse
- freedesktop.org ``os-release`` files.
-
-- bpo-42299: Removed the ``formatter`` module, which was deprecated in
- Python 3.4. It is somewhat obsolete, little used, and not tested. It was
- originally scheduled to be removed in Python 3.6, but such removals were
- delayed until after Python 2.7 EOL. Existing users should copy whatever
- classes they use into their code. Patch by Dong-hee Na and and Terry J.
- Reedy.
-
-- bpo-26131: Deprecate zipimport.zipimporter.load_module() in favour of
- exec_module().
-
-- bpo-41818: Updated tests for the pty library. test_basic() has been
- changed to test_openpty(); this additionally checks if slave termios and
- slave winsize are being set properly by pty.openpty(). In order to add
- support for FreeBSD, NetBSD, OpenBSD, and Darwin, this also adds
- test_master_read(), which demonstrates that pty.spawn() should not depend
- on an OSError to exit from its copy loop.
-
-- bpo-42392: Remove loop parameter from ``__init__`` in all
- ``asyncio.locks`` and ``asyncio.Queue`` classes. Patch provided by Yurii
- Karabas.
-
-- bpo-15450: Make :class:`filecmp.dircmp` respect subclassing. Now the
- :attr:`filecmp.dircmp.subdirs` behaves as expected when subclassing
- dircmp.
-
-- bpo-42413: The exception :exc:`socket.timeout` is now an alias of
- :exc:`TimeoutError`.
-
-- bpo-31904: Support signal module on VxWorks.
-
-- bpo-42406: We fixed an issue in `pickle.whichmodule` in which importing
- `multiprocessing` could change the how pickle identifies which module an
- object belongs to, potentially breaking the unpickling of those objects.
-
-- bpo-42403: Simplify the :mod:`importlib` external bootstrap code:
- ``importlib._bootstrap_external`` now uses regular imports to import
- builtin modules. When it is imported, the builtin :func:`__import__()`
- function is already fully working and so can be used to import builtin
- modules like :mod:`sys`. Patch by Victor Stinner.
-
-- bpo-1635741: Convert _sre module types to heap types (PEP 384). Patch by
- Erlend E. Aasland.
-
-- bpo-42375: subprocess module update for DragonFlyBSD support.
-
-- bpo-41713: Port the ``_signal`` extension module to the multi-phase
- initialization API (:pep:`489`). Patch by Victor Stinner and Mohamed
- Koubaa.
-
-- bpo-37205: :func:`time.time()`, :func:`time.perf_counter()` and
- :func:`time.monotonic()` functions can no longer fail with a Python fatal
- error, instead raise a regular Python exception on failure.
-
-- bpo-42328: Fixed :meth:`tkinter.ttk.Style.map`. The function accepts now
- the representation of the default state as empty sequence (as returned by
- ``Style.map()``). The structure of the result is now the same on all
- platform and does not depend on the value of ``wantobjects``.
-
-- bpo-42345: Fix various issues with ``typing.Literal`` parameter handling
- (flatten, deduplicate, use type to cache key). Patch provided by Yurii
- Karabas.
-
-- bpo-37205: :func:`time.perf_counter()` on Windows and
- :func:`time.monotonic()` on macOS are now system-wide. Previously, they
- used an offset computed at startup to reduce the precision loss caused by
- the float type. Use :func:`time.perf_counter_ns()` and
- :func:`time.monotonic_ns()` added in Python 3.7 to avoid this precision
- loss.
-
-- bpo-42318: Fixed support of non-BMP characters in :mod:`tkinter` on macOS.
-
-- bpo-42350: Fix the :class:`threading.Thread` class at fork: do nothing if
- the thread is already stopped (ex: fork called at Python exit).
- Previously, an error was logged in the child process.
-
-- bpo-42333: Port _ssl extension module to heap types.
-
-- bpo-42014: The ``onerror`` callback from ``shutil.rmtree`` now receives
- correct function when ``os.open`` fails.
-
-- bpo-42237: Fix `os.sendfile()` on illumos.
-
-- bpo-42308: Add :data:`threading.__excepthook__` to allow retrieving the
- original value of :func:`threading.excepthook` in case it is set to a
- broken or a different value. Patch by Mario Corchero.
-
-- bpo-42131: Implement PEP 451/spec methods on zipimport.zipimporter:
- find_spec(), create_module(), and exec_module().
-
- This also allows for the documented deprecation of find_loader(),
- find_module(), and load_module().
-
-- bpo-41877: Mock objects which are not unsafe will now raise an
- AttributeError if an attribute with the prefix asert, aseert, or assrt is
- accessed, in addition to this already happening for the prefixes assert or
- assret.
-
-- bpo-42264: ``sqlite3.OptimizedUnicode`` has been undocumented and obsolete
- since Python 3.3, when it was made an alias to :class:`str`. It is now
- deprecated, scheduled for removal in Python 3.12.
-
-- bpo-42251: Added :func:`threading.gettrace` and
- :func:`threading.getprofile` to retrieve the functions set by
- :func:`threading.settrace` and :func:`threading.setprofile` respectively.
- Patch by Mario Corchero.
-
-- bpo-42249: Fixed writing binary Plist files larger than 4 GiB.
-
-- bpo-42236: On Unix, the :func:`os.device_encoding` function now returns
- ``'UTF-8'`` rather than the device encoding if the :ref:`Python UTF-8 Mode
- <utf8-mode>` is enabled.
-
-- bpo-41754: webbrowser: Ignore *NotADirectoryError* when calling
- ``xdg-settings``.
-
-- bpo-42183: Fix a stack overflow error for asyncio Task or Future repr().
-
- The overflow occurs under some circumstances when a Task or Future
- recursively returns itself.
-
-- bpo-42140: Improve asyncio.wait function to create the futures set just
- one time.
-
-- bpo-42133: Update various modules in the stdlib to fall back on
- `__spec__.loader` when `__loader__` isn't defined on a module.
-
-- bpo-26131: The `load_module()` methods found in importlib now trigger a
- DeprecationWarning.
-
-- bpo-39825: Windows: Change ``sysconfig.get_config_var('EXT_SUFFIX')`` to
- the expected full ``platform_tag.extension`` format. Previously it was
- hard-coded to ``.pyd``, now it is compatible with ``distutils.sysconfig``
- and will result in something like ``.cp38-win_amd64.pyd``. This brings
- windows into conformance with the other platforms.
-
-- bpo-26389: The :func:`traceback.format_exception`,
- :func:`traceback.format_exception_only`, and
- :func:`traceback.print_exception` functions can now take an exception
- object as a positional-only argument.
-
-- bpo-41889: Enum: fix regression involving inheriting a multiply inherited
- enum
-
-- bpo-41861: Convert :mod:`sqlite3` to use heap types (PEP 384). Patch by
- Erlend E. Aasland.
-
-- bpo-40624: Added support for the XPath ``!=`` operator in xml.etree
-
-- bpo-28850: Fix :meth:`pprint.PrettyPrinter.format` overrides being ignored
- for contents of small containers. The :func:`pprint._safe_repr` function
- was removed.
-
-- bpo-41625: Expose the :c:func:`splice` as :func:`os.splice` in the
- :mod:`os` module. Patch by Pablo Galindo
-
-- bpo-34215: Clarify the error message for
- :exc:`asyncio.IncompleteReadError` when ``expected`` is ``None``.
-
-- bpo-41543: Add async context manager support for contextlib.nullcontext.
-
-- bpo-21041: :attr:`pathlib.PurePath.parents` now supports negative
- indexing. Patch contributed by Yaroslav Pankovych.
-
-- bpo-41332: Added missing connect_accepted_socket() method to
- ``asyncio.AbstractEventLoop``.
-
-- bpo-12800: Extracting a symlink from a tarball should succeed and
- overwrite the symlink if it already exists. The fix is to remove the
- existing file or symlink before extraction. Based on patch by Chris AtLee,
- Jeffrey Kintscher, and Senthil Kumaran.
-
-- bpo-40968: :mod:`urllib.request` and :mod:`http.client` now send
- ``http/1.1`` ALPN extension during TLS handshake when no custom context is
- supplied.
-
-- bpo-41001: Add func:`os.eventfd` to provide a low level interface for
- Linux's event notification file descriptor.
-
-- bpo-40816: Add AsyncContextDecorator to contextlib to support async
- context manager as a decorator.
-
-- bpo-40550: Fix time-of-check/time-of-action issue in
- subprocess.Popen.send_signal.
-
-- bpo-39411: Add an ``is_async`` identifier to :mod:`pyclbr`'s ``Function``
- objects. Patch by Batuhan Taskaya
-
-- bpo-35498: Add slice support to :attr:`pathlib.PurePath.parents`.
-
-Documentation
--------------
-
-- bpo-42238: Tentative to deprecate ``make suspicious`` by first removing it
- from the CI and documentation builds, but keeping it around for manual
- uses.
-
-- bpo-42153: Fix the URL for the IMAP protocol documents.
-
-- bpo-41028: Language and version switchers, previously maintained in every
- cpython branches, are now handled by docsbuild-script.
-
-Tests
------
-
-- bpo-41473: Re-enable test_gdb on gdb 9.2 and newer:
- https://bugzilla.redhat.com/show_bug.cgi?id=1866884 bug is fixed in gdb
- 10.1.
-
-- bpo-42553: Fix ``test_asyncio.test_call_later()`` race condition: don't
- measure asyncio performance in the ``call_later()`` unit test. The test
- failed randomly on the CI.
-
-- bpo-31904: Fix test_netrc on VxWorks: create temporary directories using
- temp_cwd().
-
-- bpo-31904: skip test_getaddrinfo_ipv6_scopeid_symbolic and
- test_getnameinfo_ipv6_scopeid_symbolic on VxWorks
-
-- bpo-31904: skip test_test of test_mailcap on VxWorks
-
-- bpo-31904: add shell requirement for test_pipes
-
-- bpo-31904: skip some tests related to fifo on VxWorks
-
-- bpo-31904: Fix test_doctest.py failures for VxWorks.
-
-- bpo-40754: Include ``_testinternalcapi`` module in Windows installer for
- test suite
-
-- bpo-41561: test_ssl: skip test_min_max_version_mismatch when TLS 1.0 is
- not available
-
-- bpo-31904: Fix os module failures for VxWorks RTOS.
-
-- bpo-31904: Fix fifo test cases for VxWorks RTOS.
-
-Build
------
-
-- bpo-31904: remove libnet dependency from detect_socket() for VxWorks
-
-- bpo-42398: Fix a race condition in "make regen-all" when make -jN option
- is used to run jobs in parallel. The clinic.py script now only use atomic
- write to write files. Moveover, generated files are now left unchanged if
- the content does not change, to not change the file modification time.
-
-- bpo-41617: Fix building ``pycore_bitutils.h`` internal header on old clang
- version without ``__builtin_bswap16()`` (ex: Xcode 4.6.3 on Mac OS X
- 10.7). Patch by Joshua Root and Victor Stinner.
-
-- bpo-38823: It is no longer possible to build the ``_ctypes`` extension
- module without :c:type:`wchar_t` type: remove ``CTYPES_UNICODE`` macro.
- Anyway, the :c:type:`wchar_t` type is required to build Python. Patch by
- Victor Stinner.
-
-- bpo-42087: Support was removed for AIX 5.3 and below. See :issue:`40680`.
-
-- bpo-40998: Addressed three compiler warnings found by undefined behavior
- sanitizer (ubsan).
-
-Windows
--------
-
-- bpo-42120: Remove macro definition of ``copysign`` (to ``_copysign``) in
- headers.
-
-- bpo-38506: The Windows launcher now properly handles Python 3.10 when
- listing installed Python versions.
-
-macOS
------
-
-- bpo-42504: Fix build on macOS Big Sur when MACOSX_DEPLOYMENT_TARGET=11
-
-- bpo-41116: Ensure distutils.unixxcompiler.find_library_file can find
- system provided libraries on macOS 11.
-
-- bpo-41100: Add support for macOS 11 and Apple Silicon systems.
-
- It is now possible to build "Universal 2" binaries using
- "--enable-universalsdk --with-universal-archs=universal2".
-
- Binaries build on later macOS versions can be deployed back to older
- versions (tested up to macOS 10.9), when using the correct deployment
- target. This is tested using Xcode 11 and later.
-
-- bpo-42232: Added Darwin specific madvise options to mmap module.
-
-- bpo-38443: The ``--enable-universalsdk`` and ``--with-universal-archs``
- options for the configure script now check that the specified
- architectures can be used.
-
-IDLE
-----
-
-- bpo-42508: Keep IDLE running on macOS. Remove obsolete workaround that
- prevented running files with shortcuts when using new universal2
- installers built on macOS 11.
-
-- bpo-42426: Fix reporting offset of the RE error in searchengine.
-
-- bpo-42415: Get docstrings for IDLE calltips more often by using
- inspect.getdoc.
-
-Tools/Demos
------------
-
-- bpo-42212: The smelly.py script now also checks the Python dynamic library
- and extension modules, not only the Python static library. Make also the
- script more verbose: explain what it does.
-
-- bpo-36310: Allow :file:`Tools/i18n/pygettext.py` to detect calls to
- ``gettext`` in f-strings.
-
-C API
------
-
-- bpo-42423: The :c:func:`PyType_FromSpecWithBases` and
- :c:func:`PyType_FromModuleAndSpec` functions now accept a single class as
- the *bases* argument.
-
-- bpo-1635741: Port :mod:`select` extension module to multiphase
- initialization (:pep:`489`).
-
-- bpo-1635741: Port _posixsubprocess extension module to multiphase
- initialization (:pep:`489`).
-
-- bpo-1635741: Port _posixshmem extension module to multiphase
- initialization (:pep:`489`)
-
-- bpo-1635741: Port _struct extension module to multiphase initialization
- (:pep:`489`)
-
-- bpo-1635741: Port :mod:`spwd` extension module to multiphase
- initialization (:pep:`489`)
-
-- bpo-1635741: Port :mod:`gc` extension module to multiphase initialization
- (:pep:`489`)
-
-- bpo-1635741: Port _queue extension module to multiphase initialization
- (:pep:`489`)
-
-- bpo-39573: Convert :c:func:`Py_TYPE` and :c:func:`Py_SIZE` back to macros
- to allow using them as an l-value. Many third party C extension modules
- rely on the ability of using Py_TYPE() and Py_SIZE() to set an object type
- and size: ``Py_TYPE(obj) = type;`` and ``Py_SIZE(obj) = size;``.
-
-- bpo-1635741: Port :mod:`symtable` extension module to multiphase
- initialization (:pep:`489`)
-
-- bpo-1635741: Port :mod:`grp` and :mod:`pwd` extension modules to
- multiphase initialization (:pep:`489`)
-
-- bpo-1635741: Port _random extension module to multiphase initialization
- (:pep:`489`)
-
-- bpo-1635741: Port _hashlib extension module to multiphase initialization
- (:pep:`489`)
-
-- bpo-41713: Removed the undocumented ``PyOS_InitInterrupts()`` function.
- Initializing Python already implicitly installs signal handlers: see
- :c:member:`PyConfig.install_signal_handlers`. Patch by Victor Stinner.
-
-- bpo-40170: The ``Py_TRASHCAN_BEGIN`` macro no longer accesses PyTypeObject
- attributes, but now can get the condition by calling the new private
- :c:func:`_PyTrash_cond()` function which hides implementation details.
-
-- bpo-42260: :c:func:`Py_GetPath`, :c:func:`Py_GetPrefix`,
- :c:func:`Py_GetExecPrefix`, :c:func:`Py_GetProgramFullPath`,
- :c:func:`Py_GetPythonHome` and :c:func:`Py_GetProgramName` functions now
- return ``NULL`` if called before :c:func:`Py_Initialize` (before Python is
- initialized). Use the new :ref:`Python Initialization Configuration API
- <init-config>` to get the :ref:`Python Path Configuration.
- <init-path-config>`. Patch by Victor Stinner.
-
-- bpo-42260: The :c:func:`PyConfig_Read` function now only parses
- :c:member:`PyConfig.argv` arguments once: :c:member:`PyConfig.parse_argv`
- is set to ``2`` after arguments are parsed. Since Python arguments are
- strippped from :c:member:`PyConfig.argv`, parsing arguments twice would
- parse the application options as Python options.
-
-- bpo-42262: Added :c:func:`Py_NewRef` and :c:func:`Py_XNewRef` functions to
- increment the reference count of an object and return the object. Patch by
- Victor Stinner.
-
-- bpo-42260: When :c:func:`Py_Initialize` is called twice, the second call
- now updates more :mod:`sys` attributes for the configuration, rather than
- only :data:`sys.argv`. Patch by Victor Stinner.
-
-- bpo-41832: The :c:func:`PyType_FromModuleAndSpec` function now accepts
- NULL ``tp_doc`` slot.
-
-- bpo-1635741: Added :c:func:`PyModule_AddObjectRef` function: similar to
- :c:func:`PyModule_AddObject` but don't steal a reference to the value on
- success. Patch by Victor Stinner.
-
-- bpo-42171: The :c:data:`METH_FASTCALL` calling convention is added to the
- limited API. The functions :c:func:`PyModule_AddType`,
- :c:func:`PyType_FromModuleAndSpec`, :c:func:`PyType_GetModule` and
- :c:func:`PyType_GetModuleState` are added to the limited API on Windows.
-
-- bpo-42085: Add dedicated entry to PyAsyncMethods for sending values
-
-- bpo-41073: :c:func:`PyType_GetSlot()` can now accept static types.
-
-- bpo-30459: :c:func:`PyList_SET_ITEM`, :c:func:`PyTuple_SET_ITEM` and
- :c:func:`PyCell_SET` macros can no longer be used as l-value or r-value.
- For example, ``x = PyList_SET_ITEM(a, b, c)`` and ``PyList_SET_ITEM(a, b,
- c) = x`` now fail with a compiler error. It prevents bugs like ``if
- (PyList_SET_ITEM (a, b, c) < 0) ...`` test. Patch by Zackery Spytz and
- Victor Stinner.
-
-
-What's New in Python 3.10.0 alpha 2?
-====================================
-
-*Release date: 2020-11-03*
-
-Security
---------
-
-- bpo-42103: Prevented potential DoS attack via CPU and RAM exhaustion when
- processing malformed Apple Property List files in binary format.
-
-- bpo-42051: The :mod:`plistlib` module no longer accepts entity
- declarations in XML plist files to avoid XML vulnerabilities. This should
- not affect users as entity declarations are not used in regular plist
- files.
-
-Core and Builtins
------------------
-
-- bpo-42236: If the ``nl_langinfo(CODESET)`` function returns an empty
- string, Python now uses UTF-8 as the filesystem encoding. Patch by Victor
- Stinner.
-
-- bpo-42218: Fixed a bug in the PEG parser that was causing crashes in debug
- mode. Now errors are checked in left-recursive rules to avoid cases where
- such errors do not get handled in time and appear as long-distance crashes
- in other places.
-
-- bpo-42214: Fixed a possible crash in the PEG parser when checking for the
- '!=' token in the ``barry_as_flufl`` rule. Patch by Pablo Galindo.
-
-- bpo-42206: Propagate and raise the errors caused by
- :c:func:`PyAST_Validate` in the parser.
-
-- bpo-41796: The :mod:`ast` module internal state is now per interpreter.
- Patch by Victor Stinner.
-
-- bpo-42143: Fix handling of errors during creation of ``PyFunctionObject``,
- which resulted in operations on uninitialized memory. Patch by Yonatan
- Goldschmidt.
-
-- bpo-41659: Fix a bug in the parser, where a curly brace following a
- `primary` didn't fail immediately. This led to invalid expressions like `a
- {b}` to throw a :exc:`SyntaxError` with a wrong offset, or invalid
- expressions ending with a curly brace like `a {` to not fail immediately
- in the REPL.
-
-- bpo-42150: Fix possible buffer overflow in the new parser when checking
- for continuation lines. Patch by Pablo Galindo.
-
-- bpo-42123: Run the parser two times. On the first run, disable all the
- rules that only generate better error messages to gain performance. If
- there's a parse failure, run the parser a second time with those enabled.
-
-- bpo-42093: The ``LOAD_ATTR`` instruction now uses new "per opcode cache"
- mechanism and it is about 36% faster now. Patch by Pablo Galindo and Yury
- Selivanov.
-
-- bpo-42030: Support for the legacy AIX-specific shared library loading
- support has been removed. All versions of AIX since 4.3 have supported and
- defaulted to using the common Unix mechanism instead.
-
-- bpo-41984: The garbage collector now tracks all user-defined classes.
- Patch by Brandt Bucher.
-
-- bpo-41993: Fixed potential issues with removing not completely initialized
- module from ``sys.modules`` when import fails.
-
-- bpo-41979: Star-unpacking is now allowed for with item's targets in the
- PEG parser.
-
-- bpo-41974: Removed special methods ``__int__``, ``__float__``,
- ``__floordiv__``, ``__mod__``, ``__divmod__``, ``__rfloordiv__``,
- ``__rmod__`` and ``__rdivmod__`` of the :class:`complex` class. They
- always raised a :exc:`TypeError`.
-
-- bpo-41902: Micro optimization when compute
- :c:member:`~PySequenceMethods.sq_item` and
- :c:member:`~PyMappingMethods.mp_subscript` of :class:`range`. Patch by
- Dong-hee Na.
-
-- bpo-41894: When loading a native module and a load failure occurs, prevent
- a possible UnicodeDecodeError when not running in a UTF-8 locale by
- decoding the load error message using the current locale's encoding.
-
-- bpo-41902: Micro optimization for range.index if step is 1. Patch by
- Dong-hee Na.
-
-- bpo-41435: Add `sys._current_exceptions()` function to retrieve a
- dictionary mapping each thread's identifier to the topmost exception
- currently active in that thread at the time the function is called.
-
-- bpo-38605: Enable ``from __future__ import annotations`` (:pep:`563`) by
- default. The values found in :attr:`__annotations__` dicts are now
- strings, e.g. ``{"x": "int"}`` instead of ``{"x": int}``.
-
-Library
--------
-
-- bpo-35455: On Solaris, :func:`~time.thread_time` is now implemented with
- ``gethrvtime()`` because ``clock_gettime(CLOCK_THREAD_CPUTIME_ID)`` is not
- always available. Patch by Jakub Kulik.
-
-- bpo-42233: The :func:`repr` of :mod:`typing` types containing
- :ref:`Generic Alias Types <types-genericalias>` previously did not show
- the parameterized types in the ``GenericAlias``. They have now been
- changed to do so.
-
-- bpo-29566: ``binhex.binhex()`` consistently writes macOS 9 line endings.
-
-- bpo-26789: The :class:`logging.FileHandler` class now keeps a reference to
- the builtin :func:`open` function to be able to open or reopen the file
- during Python finalization. Fix errors like: ``NameError: name 'open' is
- not defined``. Patch by Victor Stinner.
-
-- bpo-42157: Removed the ``unicodedata.ucnhash_CAPI`` attribute which was an
- internal PyCapsule object. The related private ``_PyUnicode_Name_CAPI``
- structure was moved to the internal C API. Patch by Victor Stinner.
-
-- bpo-42157: Convert the :mod:`unicodedata` extension module to the
- multiphase initialization API (:pep:`489`) and convert the
- ``unicodedata.UCD`` static type to a heap type. Patch by Mohamed Koubaa
- and Victor Stinner.
-
-- bpo-42146: Fix memory leak in :func:`subprocess.Popen` in case an uid
- (gid) specified in `user` (`group`, `extra_groups`) overflows `uid_t`
- (`gid_t`).
-
-- bpo-42103: :exc:`~plistlib.InvalidFileException` and :exc:`RecursionError`
- are now the only errors caused by loading malformed binary Plist file
- (previously ValueError and TypeError could be raised in some specific
- cases).
-
-- bpo-41490: In ``importlib.resources``, ``.path`` method is more aggressive
- about releasing handles to zipfile objects early, enabling use-cases like
- certifi to leave the context open but delete the underlying zip file.
-
-- bpo-41052: Pickling heap types implemented in C with protocols 0 and 1
- raises now an error instead of producing incorrect data.
-
-- bpo-42089: In ``importlib.metadata.PackageNotFoundError``, make reference
- to the package metadata being missing to improve the user experience.
-
-- bpo-41491: plistlib: fix parsing XML plists with hexadecimal integer
- values
-
-- bpo-42065: Fix an incorrectly formatted error from
- :meth:`_codecs.charmap_decode` when called with a mapped value outside the
- range of valid Unicode code points. PR by Max Bernstein.
-
-- bpo-41966: Fix pickling pure Python :class:`datetime.time` subclasses.
- Patch by Dean Inwood.
-
-- bpo-19270: :meth:`sched.scheduler.cancel()` will now cancel the correct
- event, if two events with same priority are scheduled for the same time.
- Patch by Bar Harel.
-
-- bpo-28660: :func:`textwrap.wrap` now attempts to break long words after
- hyphens when ``break_long_words=True`` and ``break_on_hyphens=True``.
-
-- bpo-35823: Use ``vfork()`` instead of ``fork()`` for
- :func:`subprocess.Popen` on Linux to improve performance in cases where it
- is deemed safe.
-
-- bpo-42043: Add support for ``zipfile.Path`` inheritance.
- ``zipfile.Path.is_file()`` now returns False for non-existent names.
- ``zipfile.Path`` objects now expose a ``.filename`` attribute and rely on
- that to resolve ``.name`` and ``.parent`` when the ``Path`` object is at
- the root of the zipfile.
-
-- bpo-42021: Fix possible ref leaks in :mod:`sqlite3` module init.
-
-- bpo-39101: Fixed tests using IsolatedAsyncioTestCase from hanging on
- BaseExceptions.
-
-- bpo-41976: Fixed a bug that was causing :func:`ctypes.util.find_library`
- to return ``None`` when triying to locate a library in an environment when
- gcc>=9 is available and ``ldconfig`` is not. Patch by Pablo Galindo
-
-- bpo-41943: Fix bug where TestCase.assertLogs doesn't correctly filter
- messages by level.
-
-- bpo-41923: Implement :pep:`613`, introducing :data:`typing.TypeAlias`
- annotation.
-
-- bpo-41905: A new function in abc: *update_abstractmethods* to re-calculate
- an abstract class's abstract status. In addition, *dataclass* has been
- changed to call this function.
-
-- bpo-23706: Added *newline* parameter to ``pathlib.Path.write_text()``.
-
-- bpo-41876: Tkinter font class repr uses font name
-
-- bpo-41831: ``str()`` for the ``type`` attribute of the ``tkinter.Event``
- object always returns now the numeric code returned by Tk instead of the
- name of the event type.
-
-- bpo-39337: :func:`encodings.normalize_encoding` now ignores non-ASCII
- characters.
-
-- bpo-41747: Ensure all methods that generated from
- :func:`dataclasses.dataclass` objects now have the proper ``__qualname__``
- attribute referring to the class they belong to. Patch by Batuhan Taskaya.
-
-- bpo-30681: Handle exceptions caused by unparsable date headers when using
- email "default" policy. Patch by Tim Bell, Georges Toth
-
-- bpo-41586: Add F_SETPIPE_SZ and F_GETPIPE_SZ to fcntl module. Allow
- setting pipesize on subprocess.Popen.
-
-- bpo-41229: Add ``contextlib.aclosing`` for deterministic cleanup of async
- generators which is analogous to ``contextlib.closing`` for non-async
- generators. Patch by Joongi Kim and John Belmonte.
-
-- bpo-16396: Allow ``ctypes.wintypes`` to be imported on non-Windows
- systems.
-
-- bpo-4356: Add a key function to the bisect module.
-
-- bpo-40592: :func:`shutil.which` now ignores empty entries in
- :envvar:`PATHEXT` instead of treating them as a match.
-
-- bpo-40492: Fix ``--outfile`` for :mod:`cProfile` / :mod:`profile` not
- writing the output file in the original directory when the program being
- profiled changes the working directory. PR by Anthony Sottile.
-
-- bpo-34204: The :mod:`shelve` module now uses
- :data:`pickle.DEFAULT_PROTOCOL` by default instead of :mod:`pickle`
- protocol ``3``.
-
-- bpo-27321: Fixed KeyError exception when flattening an email to a string
- attempts to replace a non-existent Content-Transfer-Encoding header.
-
-- bpo-38976: The :mod:`http.cookiejar` module now supports the parsing of
- cookies in CURL-style cookiejar files through MozillaCookieJar on all
- platforms. Previously, such cookie entries would be silently ignored when
- loading a cookiejar with such entries.
-
- Additionally, the HTTP Only attribute is persisted in the object, and will
- be correctly written to file if the MozillaCookieJar object is
- subsequently dumped.
-
-Documentation
--------------
-
-- bpo-42061: Document __format__ functionality for IP addresses.
-
-- bpo-41910: Document the default implementation of `object.__eq__`.
-
-- bpo-42010: Clarify that subscription expressions are also valid for
- certain :term:`classes <class>` and :term:`types <type>` in the standard
- library, and for user-defined classes and types if the classmethod
- :meth:`__class_getitem__` is provided.
-
-- bpo-41805: Documented :ref:`generic alias type <types-genericalias>` and
- :data:`types.GenericAlias`. Also added an entry in glossary for
- :term:`generic types <generic type>`.
-
-- bpo-39693: Fix tarfile's extractfile documentation
-
-- bpo-39416: Document some restrictions on the default string
- representations of numeric classes.
-
-Tests
------
-
-- bpo-41739: Fix test_logging.test_race_between_set_target_and_flush(): the
- test now waits until all threads complete to avoid leaking running
- threads.
-
-- bpo-41970: Avoid a test failure in ``test_lib2to3`` if the module has
- already imported at the time the test executes. Patch by Pablo Galindo.
-
-- bpo-41944: Tests for CJK codecs no longer call ``eval()`` on content
- received via HTTP.
-
-- bpo-41306: Fixed a failure in ``test_tk.test_widgets.ScaleTest`` happening
- when executing the test with Tk 8.6.10.
-
-Build
------
-
-- bpo-38980: Add ``-fno-semantic-interposition`` to both the compile and
- link line when building with ``--enable-optimizations``. Patch by Victor
- Stinner and Pablo Galindo.
-
-Windows
--------
-
-- bpo-38439: Updates the icons for IDLE in the Windows Store package.
-
-- bpo-38252: Use 8-byte step to detect ASCII sequence in 64-bit Windows
- build.
-
-- bpo-39107: Update Tcl and Tk to 8.6.10 in Windows installer.
-
-- bpo-41557: Update Windows installer to use SQLite 3.33.0.
-
-- bpo-38324: Avoid Unicode errors when accessing certain locale data on
- Windows.
-
-macOS
------
-
-- bpo-41471: Ignore invalid prefix lengths in system proxy excludes.
-
-IDLE
-----
-
-- bpo-33987: Mostly finish using ttk widgets, mainly for editor, settings,
- and searches. Some patches by Mark Roseman.
-
-- bpo-40511: Typing opening and closing parentheses inside the parentheses
- of a function call will no longer cause unnecessary "flashing" off and on
- of an existing open call-tip, e.g. when typed in a string literal.
-
-- bpo-38439: Add a 256×256 pixel IDLE icon to the Windows .ico file. Created
- by Andrew Clover. Remove the low-color gif variations from the .ico file.
-
-C API
------
-
-- bpo-42157: The private ``_PyUnicode_Name_CAPI`` structure of the PyCapsule
- API ``unicodedata.ucnhash_CAPI`` has been moved to the internal C API.
- Patch by Victor Stinner.
-
-- bpo-42015: Fix potential crash in deallocating method objects when
- dynamically allocated `PyMethodDef`'s lifetime is managed through the
- ``self`` argument of a `PyCFunction`.
-
-- bpo-40423: The :mod:`subprocess` module and ``os.closerange`` will now use
- the ``close_range(low, high, flags)`` syscall when it is available for
- more efficient closing of ranges of descriptors.
-
-- bpo-41845: :c:func:`PyObject_GenericGetDict` is available again in the
- limited API when targeting 3.10 or later.
-
-- bpo-40422: Add `_Py_closerange` function to provide performant closing of
- a range of file descriptors.
-
-- bpo-41986: :c:data:`Py_FileSystemDefaultEncodeErrors` and
- :c:data:`Py_UTF8Mode` are available again in limited API.
-
-- bpo-41756: Add `PyIter_Send` function to allow sending value into
- generator/coroutine/iterator without raising StopIteration exception to
- signal return.
-
-- bpo-41784: Added ``PyUnicode_AsUTF8AndSize`` to the limited C API.
-
-
-What's New in Python 3.10.0 alpha 1?
-====================================
-
-*Release date: 2020-10-05*
-
-Security
---------
-
-- bpo-41304: Fixes `python3x._pth` being ignored on Windows, caused by the
- fix for :issue:`29778` (CVE-2020-15801).
-
-- bpo-41162: Audit hooks are now cleared later during finalization to avoid
- missing events.
-
-- bpo-29778: Ensure :file:`python3.dll` is loaded from correct locations
- when Python is embedded (CVE-2020-15523).
-
-- bpo-41004: The __hash__() methods of ipaddress.IPv4Interface and
- ipaddress.IPv6Interface incorrectly generated constant hash values of 32
- and 128 respectively. This resulted in always causing hash collisions. The
- fix uses hash() to generate hash values for the tuple of (address, mask
- length, network address).
-
-- bpo-39603: Prevent http header injection by rejecting control characters
- in http.client.putrequest(...).
-
-Core and Builtins
------------------
-
-- bpo-41909: Fixed stack overflow in :func:`issubclass` and
- :func:`isinstance` when getting the ``__bases__`` attribute leads to
- infinite recursion.
-
-- bpo-41922: Speed up calls to ``reversed()`` by using the :pep:`590`
- ``vectorcall`` calling convention. Patch by Dong-hee Na.
-
-- bpo-41873: Calls to ``float()`` are now faster due to the ``vectorcall``
- calling convention. Patch by Dennis Sweeney.
-
-- bpo-41870: Speed up calls to ``bool()`` by using the :pep:`590`
- ``vectorcall`` calling convention. Patch by Dong-hee Na.
-
-- bpo-1635741: Port the :mod:`_bisect` module to the multi-phase
- initialization API (:pep:`489`).
-
-- bpo-39934: Correctly count control blocks in 'except' in compiler. Ensures
- that a syntax error, rather a fatal error, occurs for deeply nested, named
- exception handlers.
-
-- bpo-41780: Fix :meth:`__dir__` of :class:`types.GenericAlias`. Patch by
- Batuhan Taskaya.
-
-- bpo-1635741: Port the :mod:`_lsprof` extension module to multi-phase
- initialization (:pep:`489`).
-
-- bpo-1635741: Port the :mod:`cmath` extension module to multi-phase
- initialization (:pep:`489`).
-
-- bpo-1635741: Port the :mod:`_scproxy` extension module to multi-phase
- initialization (:pep:`489`).
-
-- bpo-1635741: Port the :mod:`termios` extension module to multi-phase
- initialization (:pep:`489`).
-
-- bpo-1635741: Convert the :mod:`_sha256` extension module types to heap
- types.
-
-- bpo-41690: Fix a possible stack overflow in the parser when parsing
- functions and classes with a huge amount of arguments. Patch by Pablo
- Galindo.
-
-- bpo-1635741: Port the :mod:`_overlapped` extension module to multi-phase
- initialization (:pep:`489`).
-
-- bpo-1635741: Port the :mod:`_curses_panel` extension module to multi-phase
- initialization (:pep:`489`).
-
-- bpo-1635741: Port the :mod:`_opcode` extension module to multi-phase
- initialization (:pep:`489`).
-
-- bpo-41681: Fixes the wrong error description in the error raised by using
- 2 `,` in format string in f-string and :meth:`str.format`.
-
-- bpo-41675: The implementation of :func:`signal.siginterrupt` now uses
- :c:func:`sigaction` (if it is available in the system) instead of the
- deprecated :c:func:`siginterrupt`. Patch by Pablo Galindo.
-
-- bpo-41670: Prevent line trace being skipped on platforms not compiled with
- ``USE_COMPUTED_GOTOS``. Fixes issue where some lines nested within a
- try-except block were not being traced on Windows.
-
-- bpo-41654: Fix a crash that occurred when destroying subclasses of
- :class:`MemoryError`. Patch by Pablo Galindo.
-
-- bpo-1635741: Port the :mod:`zlib` extension module to multi-phase
- initialization (:pep:`489`).
-
-- bpo-41631: The ``_ast`` module uses again a global state. Using a module
- state per module instance is causing subtle practical problems. For
- example, the Mercurial project replaces the ``__import__()`` function to
- implement lazy import, whereas Python expected that ``import _ast`` always
- return a fully initialized ``_ast`` module.
-
-- bpo-40077: Convert :mod:`_operator` to use :c:func:`PyType_FromSpec`.
-
-- bpo-1653741: Port :mod:`_sha3` to multi-phase init. Convert static types
- to heap types.
-
-- bpo-1635741: Port the :mod:`_blake2` extension module to the multi-phase
- initialization API (:pep:`489`).
-
-- bpo-41533: Free the stack allocated in ``va_build_stack`` if
- ``do_mkstack`` fails and the stack is not a ``small_stack``.
-
-- bpo-41531: Fix a bug that was dropping keys when compiling dict literals
- with more than 0xFFFF elements. Patch by Pablo Galindo.
-
-- bpo-41525: The output of ``python --help`` contains now only ASCII
- characters.
-
-- bpo-1635741: Port the :mod:`_sha1`, :mod:`_sha512`, and :mod:`_md5`
- extension modules to multi-phase initialization API (:pep:`489`).
-
-- bpo-41431: Optimize ``dict_merge()`` for copying dict (e.g. ``dict(d)``
- and ``{}.update(d)``).
-
-- bpo-41428: Implement PEP 604. This supports (int | str) etc. in place of
- Union[str, int].
-
-- bpo-41340: Removed fallback implementation for ``strdup``.
-
-- bpo-38156: Handle interrupts that come after EOF correctly in
- ``PyOS_StdioReadline``.
-
-- bpo-41342: :func:`round` with integer argument is now faster (9--60%).
-
-- bpo-41334: Constructors :func:`str`, :func:`bytes` and :func:`bytearray`
- are now faster (around 30--40% for small objects).
-
-- bpo-41295: Resolve a regression in CPython 3.8.4 where defining
- "__setattr__" in a multi-inheritance setup and calling up the hierarchy
- chain could fail if builtins/extension types were involved in the base
- types.
-
-- bpo-41323: Bytecode optimizations are performed directly on the control
- flow graph. This will result in slightly more compact code objects in some
- circumstances.
-
-- bpo-41247: Always cache the running loop holder when running
- ``asyncio.set_running_loop``.
-
-- bpo-41252: Fix incorrect refcounting in _ssl.c's
- ``_servername_callback()``.
-
-- bpo-1635741: Port :mod:`multiprocessing` to multi-phase initialization
-
-- bpo-1635741: Port :mod:`winapi` to multiphase initialization
-
-- bpo-41215: Use non-NULL default values in the PEG parser keyword list to
- overcome a bug that was preventing Python from being properly compiled
- when using the XLC compiler. Patch by Pablo Galindo.
-
-- bpo-41218: Python 3.8.3 had a regression where compiling with
- ast.PyCF_ALLOW_TOP_LEVEL_AWAIT would aggressively mark list comprehension
- with CO_COROUTINE. Now only list comprehension making use of async/await
- will tagged as so.
-
-- bpo-1635741: Port :mod:`faulthandler` to multiphase initialization.
-
-- bpo-1635741: Port :mod:`sha256` to multiphase initialization
-
-- bpo-41175: Guard against a NULL pointer dereference within bytearrayobject
- triggered by the ``bytearray() + bytearray()`` operation.
-
-- bpo-41100: add arm64 to the allowable Mac OS arches in mpdecimal.h
-
-- bpo-41094: Fix decoding errors with audit when open files with non-ASCII
- names on non-UTF-8 locale.
-
-- bpo-39960: The "hackcheck" that prevents sneaking around a type's
- __setattr__() by calling the superclass method was rewritten to allow C
- implemented heap types.
-
-- bpo-41084: Prefix the error message with 'f-string: ', when parsing an
- f-string expression which throws a :exc:`SyntaxError`.
-
-- bpo-40521: Empty frozensets are no longer singletons.
-
-- bpo-41076: Pre-feed the parser with the location of the f-string
- expression, not the f-string itself, which allows us to skip the shifting
- of the AST node locations after the parsing is completed.
-
-- bpo-41056: Fixes a reference to deallocated stack space during startup
- when constructing sys.path involving a relative symlink when code was
- supplied via -c. (discovered via Coverity)
-
-- bpo-41061: Fix incorrect expressions and asserts in hashtable code and
- tests.
-
-- bpo-41052: Opt out serialization/deserialization for _random.Random
-
-- bpo-40939: Rename `PyPegen*` functions to `PyParser*`, so that we can
- remove the old set of `PyParser*` functions that were using the old
- parser, but keep everything backwards-compatible.
-
-- bpo-35975: Stefan Behnel reported that cf_feature_version is used even
- when PyCF_ONLY_AST is not set. This is against the intention and against
- the documented behavior, so it's been fixed.
-
-- bpo-40939: Remove the remaining files from the old parser and the
- :mod:`symbol` module.
-
-- bpo-40077: Convert :mod:`_bz2` to use :c:func:`PyType_FromSpec`.
-
-- bpo-41006: The ``encodings.latin_1`` module is no longer imported at
- startup. Now it is only imported when it is the filesystem encoding or the
- stdio encoding.
-
-- bpo-40636: :func:`zip` now supports :pep:`618`'s ``strict`` parameter,
- which raises a :exc:`ValueError` if the arguments are exhausted at
- different lengths. Patch by Brandt Bucher.
-
-- bpo-1635741: Port :mod:`_gdbm` to multiphase initialization.
-
-- bpo-40985: Fix a bug that caused the :exc:`SyntaxError` text to be empty
- when a file ends with a line ending in a line continuation character (i.e.
- backslash). The error text should contain the text of the last line.
-
-- bpo-40958: Fix a possible buffer overflow in the PEG parser when gathering
- information for emitting syntax errors. Patch by Pablo Galindo.
-
-- bpo-1635741: Port :mod:`_dbm` to multiphase initialization.
-
-- bpo-40957: Fix refleak in _Py_fopen_obj() when PySys_Audit() fails
-
-- bpo-40950: Add a state to the :mod:`nis` module (:pep:`3121`) and apply
- the multiphase initialization. Patch by Dong-hee Na.
-
-- bpo-40947: The Python :ref:`Path Configuration <init-path-config>` now
- takes :c:member:`PyConfig.platlibdir` in account.
-
-- bpo-40939: Remove the old parser, the :mod:`parser` module and all
- associated support code, command-line options and environment variables.
- Patch by Pablo Galindo.
-
-- bpo-40847: Fix a bug where a line with only a line continuation character
- is not considered a blank line at tokenizer level. In such cases, more
- than a single `NEWLINE` token was emitted. The old parser was working
- around the issue, but the new parser threw a :exc:`SyntaxError` for valid
- input due to this. For example, an empty line following a line
- continuation character was interpreted as a :exc:`SyntaxError`.
-
-- bpo-40890: Each dictionary view now has a ``mapping`` attribute that
- provides a :class:`types.MappingProxyType` wrapping the original
- dictionary. Patch contributed by Dennis Sweeney.
-
-- bpo-40889: Improved the performance of symmetric difference operations on
- dictionary item views. Patch by Dennis Sweeney.
-
-- bpo-40904: Fix possible segfault in the new PEG parser when parsing
- f-string containing yield statements with no value (:code:`f"{yield}"`).
- Patch by Pablo Galindo
-
-- bpo-40903: Fixed a possible segfault in the new PEG parser when producing
- error messages for invalid assignments of the form :code:`p=p=`. Patch by
- Pablo Galindo
-
-- bpo-40880: Fix invalid memory read in the new parser when checking
- newlines in string literals. Patch by Pablo Galindo.
-
-- bpo-40883: Fix memory leak in when parsing f-strings in the new parser.
- Patch by Pablo Galindo
-
-- bpo-40870: Raise :exc:`ValueError` when validating custom AST's where the
- constants ``True``, ``False`` and ``None`` are used within a
- :class:`ast.Name` node.
-
-- bpo-40854: Allow overriding :data:`sys.platlibdir` via a new
- :envvar:`PYTHONPLATLIBDIR` environment variable.
-
-- bpo-40826: Fix GIL usage in :c:func:`PyOS_Readline`: lock the GIL to set
- an exception and pass the Python thread state when checking if there is a
- pending signal.
-
-- bpo-1635741: Port :mod:`fcntl` to multiphase initialization.
-
-- bpo-19468: Delete unnecessary instance check in importlib.reload(). Patch
- by Furkan Önder.
-
-- bpo-40824: Unexpected errors in calling the ``__iter__`` method are no
- longer masked by ``TypeError`` in the :keyword:`in` operator and functions
- :func:`~operator.contains`, :func:`~operator.indexOf` and
- :func:`~operator.countOf` of the :mod:`operator` module.
-
-- bpo-40792: Attributes ``start``, ``stop`` and ``step`` of the
- :class:`range` object now always has exact type :class:`int`. Previously,
- they could have been an instance of a subclass of ``int``.
-
-- bpo-40780: Fix a corner case where g-style string formatting of a float
- failed to remove trailing zeros.
-
-- bpo-38964: When there's a :exc:`SyntaxError` in the expression part of an
- fstring, the filename attribute of the :exc:`SyntaxError` gets correctly
- set to the name of the file the fstring resides in.
-
-- bpo-40750: Support the "-d" debug flag in the new PEG parser. Patch by
- Pablo Galindo
-
-- bpo-40217: Instances of types created with
- :c:func:`PyType_FromSpecWithBases` will no longer automatically visit
- their class object when traversing references in the garbage collector.
- The user is expected to manually visit the object's class. Patch by Pablo
- Galindo.
-
-- bpo-39573: :c:func:`Py_TYPE()` is changed to the inline static function.
- Patch by Dong-hee Na.
-
-- bpo-40696: Fix a hang that can arise after :meth:`generator.throw` due to
- a cycle in the exception context chain.
-
-- bpo-40521: Each interpreter now its has own free lists, singletons and
- caches:
-
- * Free lists: float, tuple, list, dict, frame, context,
- asynchronous generator, MemoryError.
- * Singletons: empty tuple, empty bytes string, empty Unicode string,
- single byte character, single Unicode (latin1) character.
- * Slice cache.
-
- They are no longer shared by all interpreters.
-
-- bpo-40679: Certain :exc:`TypeError` messages about missing or extra
- arguments now include the function's :term:`qualified name`. Patch by
- Dennis Sweeney.
-
-- bpo-29590: Make the stack trace correct after calling
- :meth:`generator.throw` on a generator that has yielded from a ``yield
- from``.
-
-- bpo-4022: Improve performance of generators by not raising internal
- StopIteration.
-
-- bpo-1635741: Port :mod:`mmap` to multiphase initialization.
-
-- bpo-1635741: Port :mod:`_lzma` to multiphase initialization.
-
-- bpo-37999: Builtin and extension functions that take integer arguments no
- longer accept :class:`~decimal.Decimal`\ s, :class:`~fractions.Fraction`\
- s and other objects that can be converted to integers only with a loss
- (e.g. that have the :meth:`~object.__int__` method but do not have the
- :meth:`~object.__index__` method).
-
-- bpo-29882: Add :meth:`int.bit_count()`, counting the number of ones in the
- binary representation of an integer. Patch by Niklas Fiekas.
-
-- bpo-36982: Use ncurses extended color functions when available to support
- terminals with 256 colors, and add the new function
- :func:`curses.has_extended_color_support` to indicate whether extended
- color support is provided by the underlying ncurses library.
-
-- bpo-19569: Add the private macros ``_Py_COMP_DIAG_PUSH``,
- ``_Py_COMP_DIAG_IGNORE_DEPR_DECLS``, and ``_Py_COMP_DIAG_POP``.
-
-- bpo-26680: The int type now supports the x.is_integer() method for
- compatibility with float.
-
-Library
--------
-
-- bpo-41900: C14N 2.0 serialisation in xml.etree.ElementTree failed for
- unprefixed attributes when a default namespace was defined.
-
-- bpo-41887: Strip leading spaces and tabs on :func:`ast.literal_eval`. Also
- document stripping of spaces and tabs for :func:`eval`.
-
-- bpo-41773: Note in documentation that :func:`random.choices` doesn't
- support non-finite weights, raise :exc:`ValueError` when given non-finite
- weights.
-
-- bpo-41840: Fix a bug in the :mod:`symtable` module that was causing
- module-scope global variables to not be reported as both local and global.
- Patch by Pablo Galindo.
-
-- bpo-41842: Add :func:`codecs.unregister` function to unregister a codec
- search function.
-
-- bpo-40564: In ``zipfile.Path``, mutate the passed ZipFile object type
- instead of making a copy. Prevents issues when both the local copy and the
- caller’s copy attempt to close the same file handle.
-
-- bpo-40670: More reliable validation of statements in
- :class:`timeit.Timer`. It now accepts "empty" statements (only whitespaces
- and comments) and rejects misindentent statements.
-
-- bpo-41833: The :class:`threading.Thread` constructor now uses the target
- name if the *target* argument is specified but the *name* argument is
- omitted.
-
-- bpo-41817: fix `tkinter.EventType` Enum so all members are strings, and
- none are tuples
-
-- bpo-41810: :data:`types.EllipsisType`, :data:`types.NotImplementedType`
- and :data:`types.NoneType` have been reintroduced, providing a new set of
- types readily interpretable by static type checkers.
-
-- bpo-41815: Fix SQLite3 segfault when backing up closed database. Patch
- contributed by Peter David McCormick.
-
-- bpo-41816: StrEnum added: it ensures that all members are already strings
- or string candidates
-
-- bpo-41517: fix bug allowing Enums to be extended via multiple inheritance
-
-- bpo-39587: use the correct mix-in data type when constructing Enums
-
-- bpo-41792: Add is_typeddict function to typing.py to check if a type is a
- TypedDict class
-
- Previously there was no way to check that without using private API. See
- the `relevant issue in python/typing
- <https://github.com/python/typing/issues/751>`
-
-- bpo-41789: Honor `object` overrides in `Enum` class creation
- (specifically, `__str__`, `__repr__`, `__format__`, and `__reduce_ex__`).
-
-- bpo-32218: `enum.Flag` and `enum.IntFlag` members are now iterable
-
-- bpo-39651: Fix a race condition in the ``call_soon_threadsafe()`` method
- of ``asyncio.ProactorEventLoop``: do nothing if the self-pipe socket has
- been closed.
-
-- bpo-1635741: Port the ``mashal`` extension module to the multi-phase
- initialization API (:pep:`489`).
-
-- bpo-1635741: Port the ``_string`` extension module to the multi-phase
- initialization API (:pep:`489`).
-
-- bpo-41732: Added an :term:`iterator` to :class:`memoryview`.
-
-- bpo-41720: Fixed :meth:`turtle.Vec2D.__rmul__` for arguments which are not
- int or float.
-
-- bpo-41696: Fix handling of debug mode in :func:`asyncio.run`. This allows
- setting ``PYTHONASYNCIODEBUG`` or ``-X dev`` to enable asyncio debug mode
- when using :func:`asyncio.run`.
-
-- bpo-41687: Fix implementation of sendfile to be compatible with Solaris.
-
-- bpo-41662: No longer override exceptions raised in ``__len__()`` of a
- sequence of parameters in :mod:`sqlite3` with
- :exc:`~sqlite3.ProgrammingError`.
-
-- bpo-39010: Restarting a ``ProactorEventLoop`` on Windows no longer logs
- spurious ``ConnectionResetErrors``.
-
-- bpo-41638: :exc:`~sqlite3.ProgrammingError` message for absent parameter
- in :mod:`sqlite3` contains now the name of the parameter instead of its
- index when parameters are supplied as a dict.
-
-- bpo-41662: Fixed crash when mutate list of parameters during iteration in
- :mod:`sqlite3`.
-
-- bpo-41513: Improved the accuracy of math.hypot(). Internally, each step
- is computed with extra precision so that the result is now almost always
- correctly rounded.
-
-- bpo-41609: The pdb whatis command correctly reports instance methods as
- 'Method' rather than 'Function'.
-
-- bpo-39994: Fixed pprint's handling of dict subclasses that override
- __repr__.
-
-- bpo-32751: When cancelling the task due to a timeout,
- :meth:`asyncio.wait_for` will now wait until the cancellation is complete
- also in the case when *timeout* is <= 0, like it does with positive
- timeouts.
-
-- bpo-37658: :meth:`asyncio.wait_for` now properly handles races between
- cancellation of itself and the completion of the wrapped awaitable.
-
-- bpo-40782: Change the method asyncio.AbstractEventLoop.run_in_executor to
- not be a coroutine.
-
-- bpo-41520: Fix :mod:`codeop` regression that prevented turning compile
- warnings into errors.
-
-- bpo-41528: turtle uses math module functions to convert degrees to radians
- and vice versa and to calculate vector norm
-
-- bpo-41513: Minor algorithmic improvement to math.hypot() and math.dist()
- giving small gains in speed and accuracy.
-
-- bpo-41503: Fixed a race between setTarget and flush in
- logging.handlers.MemoryHandler.
-
-- bpo-41497: Fix potential UnicodeDecodeError in dis module.
-
-- bpo-41467: On Windows, fix asyncio ``recv_into()`` return value when the
- socket/pipe is closed (:exc:`BrokenPipeError`): return ``0`` rather than
- an empty byte string (``b''``).
-
-- bpo-41425: Make tkinter doc example runnable.
-
-- bpo-41421: Make an algebraic simplification to random.paretovariate(). It
- now is slightly less subject to round-off error and is slightly faster.
- Inputs that used to cause ZeroDivisionError now cause an OverflowError
- instead.
-
-- bpo-41440: Add :func:`os.cpu_count()` support for VxWorks RTOS.
-
-- bpo-41316: Fix the :mod:`tarfile` module to write only basename of TAR
- file to GZIP compression header.
-
-- bpo-41384: Raise TclError instead of TypeError when an unknown option is
- passed to tkinter.OptionMenu.
-
-- bpo-41317: Use add_done_callback() in asyncio.loop.sock_accept() to
- unsubscribe reader early on cancellation.
-
-- bpo-41364: Reduce import overhead of :mod:`uuid`.
-
-- bpo-35328: Set the environment variable ``VIRTUAL_ENV_PROMPT`` at
- :mod:`venv` activation.
-
-- bpo-41341: Recursive evaluation of `typing.ForwardRef` in
- `get_type_hints`.
-
-- bpo-41344: Prevent creating :class:`shared_memory.SharedMemory` objects
- with :code:`size=0`.
-
-- bpo-41333: :meth:`collections.OrderedDict.pop` is now 2 times faster.
-
-- bpo-41288: Unpickling invalid NEWOBJ_EX opcode with the C implementation
- raises now UnpicklingError instead of crashing.
-
-- bpo-39017: Avoid infinite loop when reading specially crafted TAR files
- using the tarfile module (CVE-2019-20907).
-
-- bpo-41273: Speed up any transport using ``_ProactorReadPipeTransport`` by
- calling ``recv_into`` instead of ``recv``, thus not creating a new buffer
- for each ``recv`` call in the transport's read loop.
-
-- bpo-41235: Fix the error handling in
- :meth:`ssl.SSLContext.load_dh_params`.
-
-- bpo-41207: In distutils.spawn, restore expectation that DistutilsExecError
- is raised when the command is not found.
-
-- bpo-29727: Register :class:`array.array` as a
- :class:`~collections.abc.MutableSequence`. Patch by Pablo Galindo.
-
-- bpo-39168: Remove the ``__new__`` method of :class:`typing.Generic`.
-
-- bpo-41194: Fix a crash in the ``_ast`` module: it can no longer be loaded
- more than once. It now uses a global state rather than a module state.
-
-- bpo-41195: Add read-only ssl.SSLContext.security_level attribute to
- retrieve the context's security level.
-
-- bpo-41193: The ``write_history()`` atexit function of the readline
- completer now ignores any :exc:`OSError` to ignore error if the filesystem
- is read-only, instead of only ignoring :exc:`FileNotFoundError` and
- :exc:`PermissionError`.
-
-- bpo-41182: selector: use DefaultSelector based upon implementation
-
-- bpo-41161: The decimal module now requires libmpdec-2.5.0. Users of
- --with-system-libmpdec should update their system library.
-
-- bpo-40874: The decimal module now requires libmpdec-2.5.0.
-
-- bpo-41138: Fixed the :mod:`trace` module CLI for Python source files with
- non-UTF-8 encoding.
-
-- bpo-31082: Use the term "iterable" in the docstring for
- :func:`functools.reduce`.
-
-- bpo-40521: Remove freelist from collections.deque().
-
-- bpo-31938: Fix default-value signatures of several functions in the
- :mod:`select` module - by Anthony Sottile.
-
-- bpo-41068: Fixed reading files with non-ASCII names from ZIP archive
- directly after writing them.
-
-- bpo-41058: :func:`pdb.find_function` now correctly determines the source
- file encoding.
-
-- bpo-41056: Invalid file descriptor values are now prevented from being
- passed to os.fpathconf. (discovered by Coverity)
-
-- bpo-41056: Fix a NULL pointer dereference within the ssl module during a
- MemoryError in the keylog callback. (discovered by Coverity)
-
-- bpo-41056: Fixed an instance where a MemoryError within the zoneinfo
- module might not be reported or not reported at its source. (found by
- Coverity)
-
-- bpo-41048: :func:`mimetypes.read_mime_types` function reads the rule file
- using UTF-8 encoding, not the locale encoding. Patch by Srinivas Reddy
- Thatiparthy.
-
-- bpo-41043: Fixed the use of :func:`~glob.glob` in the stdlib: literal part
- of the path is now always correctly escaped.
-
-- bpo-41025: Fixed an issue preventing the C implementation of
- :class:`zoneinfo.ZoneInfo` from being subclassed.
-
-- bpo-35018: Add the :class:`xml.sax.handler.LexicalHandler` class that is
- present in other SAX XML implementations.
-
-- bpo-41002: Improve performance of HTTPResponse.read with a given amount.
- Patch by Bruce Merry.
-
-- bpo-40448: :mod:`ensurepip` now disables the use of `pip` cache when
- installing the bundled versions of `pip` and `setuptools`. Patch by
- Krzysztof Konopko.
-
-- bpo-40967: Removed :meth:`asyncio.Task.current_task` and
- :meth:`asyncio.Task.all_tasks`. Patch contributed by Rémi Lapeyre.
-
-- bpo-40924: Ensure ``importlib.resources.path`` returns an extant path for
- the SourceFileLoader's resource reader. Avoids the regression identified
- in master while a long-term solution is devised.
-
-- bpo-40955: Fix a minor memory leak in :mod:`subprocess` module when
- extra_groups was specified.
-
-- bpo-40855: The standard deviation and variance functions in the statistics
- module were ignoring their mu and xbar arguments.
-
-- bpo-40939: Use the new PEG parser when generating the stdlib
- :mod:`keyword` module.
-
-- bpo-23427: Add :data:`sys.orig_argv` attribute: the list of the original
- command line arguments passed to the Python executable.
-
-- bpo-33689: Ignore empty or whitespace-only lines in .pth files. This
- matches the documentated behavior. Before, empty lines caused the
- site-packages dir to appear multiple times in sys.path. By Ido Michael,
- contributors Malcolm Smith and Tal Einat.
-
-- bpo-40884: Added a `defaults` parameter to :class:`logging.Formatter`, to
- allow specifying default values for custom fields. Patch by Asaf Alon and
- Bar Harel.
-
-- bpo-40876: Clarify error message in the :mod:`csv` module.
-
-- bpo-39791: Refresh importlib.metadata from importlib_metadata 1.6.1.
-
-- bpo-40807: Stop codeop._maybe_compile, used by code.InteractiveInterpreter
- (and IDLE). from emitting each warning three times.
-
-- bpo-32604: Fix reference leak in the :mod:`select` module when the module
- is imported in a subinterpreter.
-
-- bpo-39791: Built-in loaders (SourceFileLoader and ZipImporter) now supply
- ``TraversableResources`` implementations for ``ResourceReader``, and the
- fallback function has been removed.
-
-- bpo-39314: :class:`rlcompleter.Completer` and the standard Python shell
- now close the parenthesis for functions that take no arguments. Patch
- contributed by Rémi Lapeyre.
-
-- bpo-17005: The topological sort functionality that was introduced
- initially in the :mod:`functools` module has been moved to a new
- :mod:`graphlib` module to better accommodate the new tools and keep the
- original scope of the :mod:`functools` module. Patch by Pablo Galindo
-
-- bpo-40834: Fix truncate when sending str object
- with_xxsubinterpreters.channel_send.
-
-- bpo-40755: Add rich comparisons to collections.Counter().
-
-- bpo-26407: Unexpected errors in calling the ``__iter__`` method are no
- longer masked by ``TypeError`` in :func:`csv.reader`,
- :func:`csv.writer.writerow` and :meth:`csv.writer.writerows`.
-
-- bpo-39384: Fixed email.contentmanager to allow set_content() to set a null
- string.
-
-- bpo-40744: The :mod:`sqlite3` module uses SQLite API functions that
- require SQLite v3.7.3 or higher. This patch removes support for older
- SQLite versions, and explicitly requires SQLite 3.7.3 both at build,
- compile and runtime. Patch by Sergey Fedoseev and Erlend E. Aasland.
-
-- bpo-40777: Initialize PyDateTime_IsoCalendarDateType.tp_base at run-time
- to avoid errors on some compilers.
-
-- bpo-38488: Update ensurepip to install pip 20.1.1 and setuptools 47.1.0.
-
-- bpo-40792: The result of :func:`operator.index` now always has exact type
- :class:`int`. Previously, the result could have been an instance of a
- subclass of ``int``.
-
-- bpo-40767: :mod:`webbrowser` now properly finds the default browser in
- pure Wayland systems by checking the WAYLAND_DISPLAY environment variable.
- Patch contributed by Jérémy Attali.
-
-- bpo-40791: :func:`hashlib.compare_digest` uses OpenSSL's
- ``CRYPTO_memcmp()`` function when OpenSSL is available.
-
-- bpo-40795: :mod:`ctypes` module: If ctypes fails to convert the result of
- a callback or if a ctypes callback function raises an exception,
- sys.unraisablehook is now called with an exception set. Previously, the
- error was logged into stderr by :c:func:`PyErr_Print`.
-
-- bpo-16995: Add :func:`base64.b32hexencode` and :func:`base64.b32hexdecode`
- to support the Base32 Encoding with Extended Hex Alphabet.
-
-- bpo-30008: Fix :mod:`ssl` code to be compatible with OpenSSL 1.1.x builds
- that use ``no-deprecated`` and ``--api=1.1.0``.
-
-- bpo-30064: Fix asyncio ``loop.sock_*`` race condition issue
-
-- bpo-40759: Deprecate the :mod:`symbol` module.
-
-- bpo-40756: The second argument (extra) of ``LoggerAdapter.__init__`` now
- defaults to None.
-
-- bpo-37129: Add a new :data:`os.RWF_APPEND` flag for :func:`os.pwritev`.
-
-- bpo-40737: Fix possible reference leak for :mod:`sqlite3` initialization.
-
-- bpo-40726: Handle cases where the ``end_lineno`` is ``None`` on
- :func:`ast.increment_lineno`.
-
-- bpo-40698: :mod:`distutils` upload creates SHA2-256 and Blake2b-256
- digests. MD5 digests is skipped if platform blocks MD5.
-
-- bpo-40695: :mod:`hashlib` no longer falls back to builtin hash
- implementations when OpenSSL provides a hash digest and the algorithm is
- blocked by security policy.
-
-- bpo-9216: func:`hashlib.new` passed ``usedforsecurity`` to OpenSSL EVP
- constructor ``_hashlib.new()``. test_hashlib and test_smtplib handle
- strict security policy better.
-
-- bpo-40614: :func:`ast.parse` will not parse self documenting expressions
- in f-strings when passed ``feature_version`` is less than ``(3, 8)``.
-
-- bpo-40626: Add h5 file extension as MIME Type application/x-hdf5, as per
- HDF Group recommendation for HDF5 formatted data files. Patch contributed
- by Mark Schwab.
-
-- bpo-25920: On macOS, when building Python for macOS 10.4 and older, which
- wasn't the case for python.org macOS installer, :func:`socket.getaddrinfo`
- no longer uses an internal lock to prevent race conditions when calling
- ``getaddrinfo()`` which is thread-safe since macOS 10.5. Python 3.9
- requires macOS 10.6 or newer. The internal lock caused random hang on fork
- when another thread was calling :func:`socket.getaddrinfo`. The lock was
- also used on FreeBSD older than 5.3, OpenBSD older than 201311 and NetBSD
- older than 4.
-
-- bpo-40671: Prepare ``_hashlib`` for :pep:`489` and use
- :c:func:`PyModule_AddType`.
-
-- bpo-32309: Added a new :term:`coroutine` :func:`asyncio.to_thread`. It is
- mainly used for running IO-bound functions in a separate thread to avoid
- blocking the event loop, and essentially works as a high-level version of
- :meth:`~asyncio.loop.run_in_executor` that can directly take keyword
- arguments.
-
-- bpo-36543: Restored the deprecated :mod:`xml.etree.cElementTree` module.
-
-- bpo-40611: :data:`~mmap.MAP_POPULATE` constant has now been added to the
- list of exported :mod:`mmap` module flags.
-
-- bpo-39881: PEP 554 for use in the test suite. (Patch By Joannah Nanjekye)
-
-- bpo-13097: ``ctypes`` now raises an ``ArgumentError`` when a callback is
- invoked with more than 1024 arguments.
-
-- bpo-39385: A new test assertion context-manager,
- :func:`unittest.assertNoLogs` will ensure a given block of code emits no
- log messages using the logging module. Contributed by Kit Yan Choi.
-
-- bpo-23082: Updated the error message and docs of PurePath.relative_to() to
- better reflect the function behaviour.
-
-- bpo-40318: Use SQLite3 trace v2 API, if it is available.
-
-- bpo-40105: ZipFile truncates files to avoid corruption when a shorter
- comment is provided in append ("a") mode. Patch by Jan Mazur.
-
-- bpo-40084: Fix ``Enum.__dir__``: dir(Enum.member) now includes attributes
- as well as methods.
-
-- bpo-31122: ssl.wrap_socket() now raises ssl.SSLEOFError rather than
- OSError when peer closes connection during TLS negotiation
-
-- bpo-39728: fix default `_missing_` so a duplicate `ValueError` is not set
- as the `__context__` of the original `ValueError`
-
-- bpo-39244: Fixed :class:`multiprocessing.context.get_all_start_methods` to
- properly return the default method first on macOS.
-
-- bpo-39040: Fix parsing of invalid mime headers parameters by collapsing
- whitespace between encoded words in a bare-quote-string.
-
-- bpo-38731: Add ``--quiet`` option to command-line interface of
- :mod:`py_compile`. Patch by Gregory Schevchenko.
-
-- bpo-35714: :exc:`struct.error` is now raised if there is a null character
- in a :mod:`struct` format string.
-
-- bpo-38144: Added the *root_dir* and *dir_fd* parameters in
- :func:`glob.glob`.
-
-- bpo-26543: Fix :meth:`IMAP4.noop()` when debug mode is enabled (ex:
- ``imaplib.Debug = 3``).
-
-- bpo-12178: :func:`csv.writer` now correctly escapes *escapechar* when
- input contains *escapechar*. Patch by Catalin Iacob, Berker Peksag, and
- Itay Elbirt.
-
-- bpo-36290: AST nodes are now raising :exc:`TypeError` on conflicting
- keyword arguments. Patch contributed by Rémi Lapeyre.
-
-- bpo-33944: Added site.py site-packages tracing in verbose mode.
-
-- bpo-35078: Refactor formatweekday, formatmonthname methods in
- LocaleHTMLCalendar and LocaleTextCalendar classes in calendar module to
- call the base class methods.This enables customizable CSS classes for
- LocaleHTMLCalendar. Patch by Srinivas Reddy Thatiparthy
-
-- bpo-29620: :func:`~unittest.TestCase.assertWarns` no longer raises a
- ``RuntimeException`` when accessing a module's ``__warningregistry__``
- causes importation of a new module, or when a new module is imported in
- another thread. Patch by Kernc.
-
-- bpo-31844: Remove ``ParserBase.error()`` method from the private and
- undocumented ``_markupbase`` module. :class:`html.parser.HTMLParser` is
- the only subclass of ``ParserBase`` and its ``error()`` implementation was
- deprecated in Python 3.4 and removed in Python 3.5.
-
-- bpo-34226: Fix `cgi.parse_multipart` without content_length. Patch by
- Roger Duran
-
-- bpo-33660: Fix pathlib.PosixPath to resolve a relative path located on the
- root directory properly.
-
-- bpo-28557: Improve the error message for a misbehaving ``rawio.readinto``
-
-- bpo-26680: The d.is_integer() method is added to the Decimal type, for
- compatibility with other number types.
-
-- bpo-26680: The x.is_integer() method is incorporated into the abstract
- types of the numeric tower, Real, Rational and Integral, with appropriate
- default implementations.
-
-Documentation
--------------
-
-- bpo-41428: Add documentation for :pep:`604` (Allow writing union types as
- ``X | Y``).
-
-- bpo-41774: In Programming FAQ "Sequences (Tuples/Lists)" section, add "How
- do you remove multiple items from a list".
-
-- bpo-35293: Fix RemovedInSphinx40Warning when building the documentation.
- Patch by Dong-hee Na.
-
-- bpo-37149: Change Shipman tkinter doc link from archive.org to TkDocs.
- (The doc has been removed from the NMT server.) The new link responds
- much faster and includes a short explanatory note.
-
-- bpo-41726: Update the refcounts info of ``PyType_FromModuleAndSpec``.
-
-- bpo-41624: Fix the signature of :class:`typing.Coroutine`.
-
-- bpo-40204: Enable Sphinx 3.2 ``c_allow_pre_v3`` option and disable
- ``c_warn_on_allowed_pre_v3`` option to make the documentation compatible
- with Sphinx 2 and Sphinx 3.
-
-- bpo-41045: Add documentation for debug feature of f-strings.
-
-- bpo-41314: Changed the release when ``from __future__ import annotations``
- becomes the default from ``4.0`` to ``3.10`` (following a change in PEP
- 563).
-
-- bpo-40979: Refactored typing.rst, arranging more than 70 classes,
- functions, and decorators into new sub-sections.
-
-- bpo-40552: Fix in tutorial section 4.2. Code snippet is now correct.
-
-- bpo-39883: Make code, examples, and recipes in the Python documentation be
- licensed under the more permissive BSD0 license in addition to the
- existing Python 2.0 license.
-
-- bpo-37703: Updated Documentation to comprehensively elaborate on the
- behaviour of gather.cancel()
-
-Tests
------
-
-- bpo-41939: Fix test_site.test_license_exists_at_url(): call
- ``urllib.request.urlcleanup()`` to reset the global
- ``urllib.request._opener``. Patch by Victor Stinner.
-
-- bpo-41731: Make test_cmd_line_script pass with option '-vv'.
-
-- bpo-41602: Add tests for SIGINT handling in the runpy module.
-
-- bpo-41521: :mod:`test.support`: Rename ``blacklist`` parameter of
- :func:`~test.support.check__all__` to ``not_exported``.
-
-- bpo-41477: Make ctypes optional in test_genericalias.
-
-- bpo-41085: Fix integer overflow in the :meth:`array.array.index` method on
- 64-bit Windows for index larger than ``2**31``.
-
-- bpo-41069: :data:`test.support.TESTFN` and the current directory for tests
- when run via ``test.regrtest`` contain now non-ascii characters if
- possible.
-
-- bpo-38377: On Linux, skip tests using multiprocessing if the current user
- cannot create a file in ``/dev/shm/`` directory. Add the
- :func:`~test.support.skip_if_broken_multiprocessing_synchronize` function
- to the :mod:`test.support` module.
-
-- bpo-41009: Fix use of ``support.require_{linux|mac|freebsd}_version()``
- decorators as class decorator.
-
-- bpo-41003: Fix ``test_copyreg`` when ``numpy`` is installed:
- ``test.pickletester`` now saves/restores warnings filters when importing
- ``numpy``, to ignore filters installed by ``numpy``.
-
-- bpo-40964: Disable remote :mod:`imaplib` tests, host cyrus.andrew.cmu.edu
- is blocking incoming connections.
-
-- bpo-40927: Fix test_binhex when run twice: it now uses
- import_fresh_module() to ensure that it raises DeprecationWarning each
- time.
-
-- bpo-17258: Skip some :mod:`multiprocessing` tests when MD5 hash digest is
- blocked.
-
-- bpo-31904: Increase LOOPBACK_TIMEOUT to 10 for VxWorks RTOS.
-
-- bpo-38169: Increase code coverage for SharedMemory and ShareableList
-
-- bpo-34401: Make test_gdb properly run on HP-UX. Patch by Michael Osipov.
-
-Build
------
-
-- bpo-38249: Update :c:macro:`Py_UNREACHABLE` to use __builtin_unreachable()
- if only the compiler is able to use it. Patch by Dong-hee Na.
-
-- bpo-41617: Fix ``pycore_bitutils.h`` header file to support old clang
- versions: ``__builtin_bswap16()`` is not available in LLVM clang 3.0.
-
-- bpo-40204: Pin Sphinx version to 2.3.1 in ``Doc/Makefile``.
-
-- bpo-36020: The C99 functions :c:func:`snprintf` and :c:func:`vsnprintf`
- are now required to build Python.
-
-- bpo-40684: ``make install`` now uses the ``PLATLIBDIR`` variable for the
- destination ``lib-dynload/`` directory when ``./configure
- --with-platlibdir`` is used.
-
-- bpo-40683: Fixed an issue where the :mod:`zoneinfo` module and its tests
- were not included when Python is installed with ``make``.
-
-Windows
--------
-
-- bpo-41744: Fixes automatic import of props file when using the Nuget
- package.
-
-- bpo-41627: The user site directory for 32-bit now includes a ``-32``
- suffix to distinguish it from the 64-bit interpreter's directory.
-
-- bpo-41526: Fixed layout of final page of the installer by removing the
- special thanks to Mark Hammond (with his permission).
-
-- bpo-41492: Fixes the description that appears in UAC prompts.
-
-- bpo-40948: Improve post-install message to direct people to the "py"
- command.
-
-- bpo-41412: The installer will now fail to install on Windows 7 and Windows
- 8. Further, the UCRT dependency is now always downloaded on demand.
-
-- bpo-40741: Update Windows release to include SQLite 3.32.3.
-
-- bpo-41142: :mod:`msilib` now supports creating CAB files with non-ASCII
- file path and adding files with non-ASCII file path to them.
-
-- bpo-41074: Fixed support of non-ASCII names in functions
- :func:`msilib.OpenDatabase` and :func:`msilib.init_database` and non-ASCII
- SQL in method :meth:`msilib.Database.OpenView`.
-
-- bpo-41039: Stable ABI redirection DLL (python3.dll) now uses ``#pragma
- comment(linker)`` for re-exporting.
-
-- bpo-40164: Updates Windows OpenSSL to 1.1.1g
-
-- bpo-39631: Changes the registered MIME type for ``.py`` files on Windows
- to ``text/x-python`` instead of ``text/plain``.
-
-- bpo-40677: Manually define IO_REPARSE_TAG_APPEXECLINK in case some old
- Windows SDK doesn't have it.
-
-- bpo-37556: Extend py.exe help to mention overrides via venv, shebang,
- environmental variables & ini files.
-
-macOS
------
-
-- bpo-41557: Update macOS installer to use SQLite 3.33.0.
-
-- bpo-39580: Avoid opening Finder window if running installer from the
- command line. Patch contributed by Rick Heil.
-
-- bpo-41100: Fix configure error when building on macOS 11. Note that the
- current Python release was released shortly after the first developer
- preview of macOS 11 (Big Sur); there are other known issues with building
- and running on the developer preview. Big Sur is expected to be fully
- supported in a future bugfix release of Python 3.8.x and with 3.9.0.
-
-- bpo-40741: Update macOS installer to use SQLite 3.32.3.
-
-- bpo-41005: fixed an XDG settings issue not allowing macos to open browser
- in webbrowser.py
-
-- bpo-40741: Update macOS installer to use SQLite 3.32.2.
-
-IDLE
-----
-
-- bpo-41775: Use 'IDLE Shell' as shell title
-
-- bpo-35764: Rewrite the Calltips doc section.
-
-- bpo-40181: In calltips, stop reminding that '/' marks the end of
- positional-only arguments.
-
-- bpo-41468: Improve IDLE run crash error message (which users should never
- see).
-
-- bpo-41373: Save files loaded with no line ending, as when blank, or
- different line endings, by setting its line ending to the system default.
- Fix regression in 3.8.4 and 3.9.0b4.
-
-- bpo-41300: Save files with non-ascii chars. Fix regression released in
- 3.9.0b4 and 3.8.4.
-
-- bpo-37765: Add keywords to module name completion list. Rewrite
- Completions section of IDLE doc.
-
-- bpo-41152: The encoding of ``stdin``, ``stdout`` and ``stderr`` in IDLE is
- now always UTF-8.
-
-- bpo-41144: Make Open Module open a special module such as os.path.
-
-- bpo-39885: Make context menu Cut and Copy work again when right-clicking
- within a selection.
-
-- bpo-40723: Make test_idle pass when run after import.
-
-C API
------
-
-- bpo-41936: Removed undocumented macros ``Py_ALLOW_RECURSION`` and
- ``Py_END_ALLOW_RECURSION`` and the ``recursion_critical`` field of the
- :c:type:`PyInterpreterState` structure.
-
-- bpo-41692: The ``PyUnicode_InternImmortal()`` function is now deprecated
- and will be removed in Python 3.12: use :c:func:`PyUnicode_InternInPlace`
- instead. Patch by Victor Stinner.
-
-- bpo-41842: Add :c:func:`PyCodec_Unregister` function to unregister a codec
- search function.
-
-- bpo-41834: Remove the ``_Py_CheckRecursionLimit`` variable: it has been
- replaced by ``ceval.recursion_limit`` of the :c:type:`PyInterpreterState`
- structure. Patch by Victor Stinner.
-
-- bpo-41689: Types created with :c:func:`PyType_FromSpec` now make any
- signature in their ``tp_doc`` slot accessible from ``__text_signature__``.
-
-- bpo-41524: Fix bug in PyOS_mystrnicmp and PyOS_mystricmp that incremented
- pointers beyond the end of a string.
-
-- bpo-41324: Add a minimal decimal capsule API. The API supports fast
- conversions between Decimals up to 38 digits and their triple
- representation as a C struct.
-
-- bpo-30155: Add :c:func:`PyDateTime_DATE_GET_TZINFO` and
- :c:func:`PyDateTime_TIME_GET_TZINFO` macros for accessing the ``tzinfo``
- attributes of :class:`datetime.datetime` and :class:`datetime.time`
- objects.
-
-- bpo-40170: Revert :c:func:`PyType_HasFeature` change: it reads again
- directly the :c:member:`PyTypeObject.tp_flags` member when the limited C
- API is not used, rather than always calling :c:func:`PyType_GetFlags`
- which hides implementation details.
-
-- bpo-41123: Remove ``PyUnicode_AsUnicodeCopy``.
-
-- bpo-41123: Removed ``PyLong_FromUnicode()``.
-
-- bpo-41123: Removed ``PyUnicode_GetMax()``.
-
-- bpo-41123: Removed ``Py_UNICODE_str*`` functions manipulating
- ``Py_UNICODE*`` strings.
-
-- bpo-41103: ``PyObject_AsCharBuffer()``, ``PyObject_AsReadBuffer()``,
- ``PyObject_CheckReadBuffer()``, and ``PyObject_AsWriteBuffer()`` are
- removed. Please migrate to new buffer protocol;
- :c:func:`PyObject_GetBuffer` and :c:func:`PyBuffer_Release`.
-
-- bpo-36346: Raises DeprecationWarning for ``PyUnicode_FromUnicode(NULL,
- size)`` and ``PyUnicode_FromStringAndSize(NULL, size)`` with ``size > 0``.
-
-- bpo-36346: Mark ``Py_UNICODE_COPY``, ``Py_UNICODE_FILL``,
- ``PyUnicode_WSTR_LENGTH``, ``PyUnicode_FromUnicode``,
- ``PyUnicode_AsUnicode``, and ``PyUnicode_AsUnicodeAndSize`` as deprecated
- in C. Remove ``Py_UNICODE_MATCH`` which was deprecated and broken since
- Python 3.3.
-
-- bpo-40989: The :c:func:`PyObject_INIT` and :c:func:`PyObject_INIT_VAR`
- macros become aliases to, respectively, :c:func:`PyObject_Init` and
- :c:func:`PyObject_InitVar` functions.
-
-- bpo-36020: On Windows, ``#include "pyerrors.h"`` no longer defines
- ``snprintf`` and ``vsnprintf`` macros.
-
-- bpo-40943: The ``PY_SSIZE_T_CLEAN`` macro must now be defined to use
- :c:func:`PyArg_ParseTuple` and :c:func:`Py_BuildValue` formats which use
- ``#``: ``es#``, ``et#``, ``s#``, ``u#``, ``y#``, ``z#``, ``U#`` and
- ``Z#``. See :ref:`Parsing arguments and building values <arg-parsing>` and
- the :pep:`353`.
-
-- bpo-40910: Export explicitly the :c:func:`Py_GetArgcArgv` function to the
- C API and document the function. Previously, it was exported implicitly
- which no longer works since Python is built with ``-fvisibility=hidden``.
-
-- bpo-40724: Allow defining buffer slots in type specs.
-
-- bpo-40679: Fix a ``_PyEval_EvalCode()`` crash if *qualname* argument is
- NULL.
-
-- bpo-40839: Calling :c:func:`PyDict_GetItem` without :term:`GIL` held had
- been allowed for historical reason. It is no longer allowed.
-
-- bpo-40826: :c:func:`PyOS_InterruptOccurred` now fails with a fatal error
- if it is called with the GIL released.
-
-- bpo-40792: The result of :c:func:`PyNumber_Index` now always has exact
- type :class:`int`. Previously, the result could have been an instance of a
- subclass of ``int``.
-
-- bpo-39573: Convert :c:func:`Py_REFCNT` and :c:func:`Py_SIZE` macros to
- static inline functions. They cannot be used as l-value anymore: use
- :c:func:`Py_SET_REFCNT` and :c:func:`Py_SET_SIZE` to set an object
- reference count and size. This change is backward incompatible on purpose,
- to prepare the C API for an opaque :c:type:`PyObject` structure.
-
-- bpo-40703: The PyType_FromSpec*() functions no longer overwrite the type's
- "__module__" attribute if it is set via "Py_tp_members" or "Py_tp_getset".
-
-- bpo-39583: Remove superfluous "extern C" declarations from
- ``Include/cpython/*.h``.
-
-
-What's New in Python 3.9.0 beta 1?
-==================================
-
-*Release date: 2020-05-19*
-
-Security
---------
-
-- bpo-40501: :mod:`uuid` no longer uses :mod:`ctypes` to load
- :file:`libuuid` or :file:`rpcrt4.dll` at runtime.
-
-Core and Builtins
------------------
-
-- bpo-40663: Correctly generate annotations where parentheses are omitted
- but required (e.g: ``Type[(str, int, *other))]``.
-
-- bpo-40596: Fixed :meth:`str.isidentifier` for non-canonicalized strings
- containing non-BMP characters on Windows.
-
-- bpo-40593: Improved syntax errors for invalid characters in source code.
-
-- bpo-40585: Fixed a bug when using :func:`codeop.compile_command` that was
- causing exceptions to be swallowed with the new parser. Patch by Pablo
- Galindo
-
-- bpo-40566: Apply :pep:`573` to :mod:`abc`.
-
-- bpo-40502: Initialize ``n->n_col_offset``. (Patch by Joannah Nanjekye)
-
-- bpo-40527: Fix command line argument parsing: no longer write errors
- multiple times into stderr.
-
-- bpo-1635741: Port :mod:`errno` to multiphase initialization (:pep:`489`).
-
-- bpo-40523: Add pass-throughs for :func:`hash` and :func:`reversed` to
- :class:`weakref.proxy` objects. Patch by Pablo Galindo.
-
-- bpo-1635741: Port :mod:`syslog` to multiphase initialization (:pep:`489`).
-
-- bpo-40246: Reporting a specialised error message for invalid string
- prefixes, which was introduced in :issue:`40246`, is being reverted due to
- backwards compatibility concerns for strings that immediately follow a
- reserved keyword without whitespace between them. Constructs like
- `bg="#d00" if clear else"#fca"` were failing to parse, which is not an
- acceptable breakage on such short notice.
-
-- bpo-40417: Fix imp module deprecation warning when PyImport_ReloadModule
- is called. Patch by Robert Rouhani.
-
-- bpo-40408: Fixed support of nested type variables in GenericAlias (e.g.
- ``list[list[T]]``).
-
-- bpo-1635741: Port _stat module to multiphase initialization (:pep:`489`).
-
-- bpo-29587: Enable implicit exception chaining when calling
- :meth:`generator.throw`.
-
-- bpo-40328: Add tools for generating mappings headers for CJKCodecs.
-
-- bpo-40228: Setting frame.f_lineno is now robust w.r.t. changes in the
- source-to-bytecode compiler
-
-- bpo-38880: Added the ability to list interpreters associated with channel
- ends in the internal subinterpreters module.
-
-- bpo-37986: Improve performance of :c:func:`PyLong_FromDouble` for values
- that fit into :c:expr:`long`.
-
-Library
--------
-
-- bpo-40662: Fixed :func:`ast.get_source_segment` for ast nodes that have
- incomplete location information. Patch by Irit Katriel.
-
-- bpo-40665: Convert :mod:`bisect` to use Argument Clinic.
-
-- bpo-40536: Added the :func:`~zoneinfo.available_timezones` function to the
- :mod:`zoneinfo` module. Patch by Paul Ganssle.
-
-- bpo-40645: The :class:`hmac.HMAC` exposes internal implementation details.
- The attributes ``digest_cons``, ``inner``, and ``outer`` are deprecated
- and will be removed in the future.
-
-- bpo-40645: The internal module ``_hashlib`` wraps and exposes OpenSSL's
- HMAC API. The new code will be used in Python 3.10 after the internal
- implementation details of the pure Python HMAC module are no longer part
- of the public API.
-
-- bpo-40637: Builtin hash modules can now be disabled or selectively enabled
- with ``configure --with-builtin-hashlib-hashes=sha3,blake1`` or
- ``--without-builtin-hashlib-hashes``.
-
-- bpo-37630: The :mod:`hashlib` module can now use SHA3 hashes and SHAKE XOF
- from OpenSSL when available.
-
-- bpo-40479: The :mod:`hashlib` now compiles with OpenSSL 3.0.0-alpha2.
-
-- bpo-40257: Revert changes to :func:`inspect.getdoc`.
-
-- bpo-40607: When cancelling a task due to timeout, :meth:`asyncio.wait_for`
- will now propagate the exception if an error happens during cancellation.
- Patch by Roman Skurikhin.
-
-- bpo-40612: Fix edge cases in SyntaxError formatting. If the offset is <=
- 0, no caret is printed. If the offset is > line length, the caret is
- printed pointing just after the last character.
-
-- bpo-40597: If text content lines are longer than policy.max_line_length,
- always use a content-encoding to make sure they are wrapped.
-
-- bpo-40571: Added functools.cache() as a simpler, more discoverable way to
- access the unbounded cache variant of lru_cache(maxsize=None).
-
-- bpo-40503: :pep:`615`, the :mod:`zoneinfo` module. Adds support for the
- IANA time zone database.
-
-- bpo-40397: Removed attributes ``__args__`` and ``__parameters__`` from
- special generic aliases like ``typing.List`` (not subscripted).
-
-- bpo-40549: Convert posixmodule.c ("posix" or "nt" module) to the
- multiphase initialization (PEP 489).
-
-- bpo-31033: Add a ``msg`` argument to :meth:`Future.cancel` and
- :meth:`Task.cancel`.
-
-- bpo-40541: Added an optional *counts* parameter to random.sample().
-
-- bpo-40515: The :mod:`ssl` and :mod:`hashlib` modules now actively check
- that OpenSSL is build with thread support. Python 3.7.0 made thread
- support mandatory and no longer works safely with a no-thread builds.
-
-- bpo-31033: When a :class:`asyncio.Task` is cancelled, the exception
- traceback now chains all the way back to where the task was first
- interrupted.
-
-- bpo-40504: :func:`functools.lru_cache` objects can now be the targets of
- weakrefs.
-
-- bpo-40559: Fix possible memory leak in the C implementation of
- :class:`asyncio.Task`.
-
-- bpo-40480: ``fnmatch.fnmatch()`` could take exponential time in the
- presence of multiple ``*`` pattern characters. This was repaired by
- generating more elaborate regular expressions to avoid futile
- backtracking.
-
-- bpo-40495: :mod:`compileall` is now able to use hardlinks to prevent
- duplicates in a case when ``.pyc`` files for different optimization levels
- have the same content.
-
-- bpo-40457: The ssl module now support OpenSSL builds without TLS 1.0 and
- 1.1 methods.
-
-- bpo-40355: Improve error reporting in :func:`ast.literal_eval` in the
- presence of malformed :class:`ast.Dict` nodes instead of silently ignoring
- any non-conforming elements. Patch by Curtis Bucher.
-
-- bpo-40465: Deprecated the optional *random* argument to
- *random.shuffle()*.
-
-- bpo-40459: :func:`platform.win32_ver` now produces correct *ptype* strings
- instead of empty strings.
-
-- bpo-39435: The first argument of :func:`pickle.loads` is now
- positional-only.
-
-- bpo-39305: Update :mod:`nntplib` to merge :class:`nntplib.NNTP` and
- :class:`nntplib._NNTPBase`. Patch by Dong-hee Na.
-
-- bpo-32494: Update :mod:`dbm.gnu` to use gdbm_count if possible when
- calling :func:`len`. Patch by Dong-hee Na.
-
-- bpo-40453: Add ``isolated=True`` keyword-only parameter to
- ``_xxsubinterpreters.create()``. An isolated subinterpreter cannot spawn
- threads, spawn a child process or call ``os.fork()``.
-
-- bpo-40286: Remove ``_random.Random.randbytes()``: the C implementation of
- ``randbytes()``. Implement the method in Python to ease subclassing:
- ``randbytes()`` now directly reuses ``getrandbits()``.
-
-- bpo-40394: Added default arguments to
- :meth:`difflib.SequenceMatcher.find_longest_match()`.
-
-- bpo-39995: Fix a race condition in concurrent.futures._ThreadWakeup:
- access to _ThreadWakeup is now protected with the shutdown lock.
-
-- bpo-30966: ``Process.shutdown(wait=True)`` of :mod:`concurrent.futures`
- now closes explicitly the result queue.
-
-- bpo-30966: Add a new :meth:`~multiprocessing.SimpleQueue.close` method to
- the :class:`~multiprocessing.SimpleQueue` class to explicitly close the
- queue.
-
-- bpo-39966: Revert bpo-25597. :class:`unittest.mock.MagicMock` with wraps'
- set uses default return values for magic methods.
-
-- bpo-39791: Added ``files()`` function to importlib.resources with support
- for subdirectories in package data, matching backport in
- importlib_resources 1.5.
-
-- bpo-40375: :meth:`imaplib.IMAP4.unselect` is added. Patch by Dong-hee Na.
-
-- bpo-40389: ``repr()`` now returns ``typing.Optional[T]`` when called for
- ``typing.Union`` of two types, one of which is ``NoneType``.
-
-- bpo-40291: Add support for CAN_J1939 sockets (available on Linux 5.4+)
-
-- bpo-40273: :class:`types.MappingProxyType` is now reversible.
-
-- bpo-39075: The repr for :class:`types.SimpleNamespace` is now insertion
- ordered rather than alphabetical.
-
-- bpo-40192: On AIX, :func:`~time.thread_time` is now implemented with
- ``thread_cputime()`` which has nanosecond resolution, rather than
- ``clock_gettime(CLOCK_THREAD_CPUTIME_ID)`` which has a resolution of 10
- milliseconds. Patch by Batuhan Taskaya.
-
-- bpo-40025: Raise TypeError when _generate_next_value_ is defined after
- members. Patch by Ethan Onstott.
-
-- bpo-39058: In the argparse module, the repr for Namespace() and other
- argument holders now displayed in the order attributes were added.
- Formerly, it displayed in alphabetical order even though argument order is
- preserved the user visible parts of the module.
-
-- bpo-24416: The ``isocalendar()`` methods of :class:`datetime.date` and
- :class:`datetime.datetime` now return a :term:`named tuple` instead of a
- :class:`tuple`.
-
-Documentation
--------------
-
-- bpo-34790: Add version of removal for explicit passing of coros to
- `asyncio.wait()`'s documentation
-
-- bpo-40561: Provide docstrings for webbrowser open functions.
-
-- bpo-40499: Mention that :func:`asyncio.wait` requires a non-empty set of
- awaitables.
-
-- bpo-39705: Tutorial example for sorted() in the Loop Techniques section is
- given a better explanation. Also a new example is included to explain
- sorted()'s basic behavior.
-
-- bpo-39435: Fix an incorrect signature for :func:`pickle.loads` in the docs
-
-Tests
------
-
-- bpo-40055: distutils.tests now saves/restores warnings filters to leave
- them unchanged. Importing tests imports docutils which imports
- pkg_resources which adds a warnings filter.
-
-- bpo-40436: test_gdb and test.pythoninfo now check gdb command exit code.
-
-Build
------
-
-- bpo-40653: Move _dirnameW out of HAVE_SYMLINK to fix a potential compiling
- issue.
-
-- bpo-40514: Add ``--with-experimental-isolated-subinterpreters`` build
- option to ``configure``: better isolate subinterpreters, experimental
- build mode.
-
-Windows
--------
-
-- bpo-40650: Include winsock2.h in pytime.c for timeval.
-
-- bpo-40458: Increase reserved stack space to prevent overflow crash on
- Windows.
-
-- bpo-39148: Add IPv6 support to :mod:`asyncio` datagram endpoints in
- ProactorEventLoop. Change the raised exception for unknown address
- families to ValueError as it's not coming from Windows API.
-
-macOS
------
-
-- bpo-34956: When building Python on macOS from source, ``_tkinter`` now
- links with non-system Tcl and Tk frameworks if they are installed in
- ``/Library/Frameworks``, as had been the case on older releases of macOS.
- If a macOS SDK is explicitly configured, by using
- ``--enable-universalsdk=`` or ``-isysroot``, only the SDK itself is
- searched. The default behavior can still be overridden with
- ``--with-tcltk-includes`` and ``--with-tcltk-libs``.
-
-- bpo-35569: Expose RFC 3542 IPv6 socket options.
-
-Tools/Demos
------------
-
-- bpo-40479: Update multissltest helper to test with latest OpenSSL 1.0.2,
- 1.1.0, 1.1.1, and 3.0.0-alpha.
-
-- bpo-40431: Fix a syntax typo in ``turtledemo`` that now raises a
- ``SyntaxError``.
-
-- bpo-40163: Fix multissltest tool. OpenSSL has changed download URL for old
- releases. The multissltest tool now tries to download from current and old
- download URLs.
-
-C API
------
-
-- bpo-39465: Remove the ``_PyUnicode_ClearStaticStrings()`` function from
- the C API.
-
-- bpo-38787: Add PyCFunction_CheckExact() macro for exact type checks now
- that we allow subtypes of PyCFunction, as well as PyCMethod_CheckExact()
- and PyCMethod_Check() for the new PyCMethod subtype.
-
-- bpo-40545: Declare ``_PyErr_GetTopmostException()`` with ``PyAPI_FUNC()``
- to properly export the function in the C API. The function remains private
- (``_Py``) prefix.
-
-- bpo-40412: Nullify inittab_copy during finalization, preventing future
- interpreter initializations in an embedded situation from crashing. Patch
- by Gregory Szorc.
-
-- bpo-40429: The :c:func:`PyThreadState_GetFrame` function now returns a
- strong reference to the frame.
-
-- bpo-40428: Remove the following functions from the C API. Call
- :c:func:`PyGC_Collect` explicitly to free all free lists.
-
- * ``PyAsyncGen_ClearFreeLists()``
- * ``PyContext_ClearFreeList()``
- * ``PyDict_ClearFreeList()``
- * ``PyFloat_ClearFreeList()``
- * ``PyFrame_ClearFreeList()``
- * ``PyList_ClearFreeList()``
- * ``PySet_ClearFreeList()``
- * ``PyTuple_ClearFreeList()``
-
-- bpo-40421: New :c:func:`PyFrame_GetBack` function: get the frame next
- outer frame.
-
-- bpo-40421: New :c:func:`PyFrame_GetCode` function: return a borrowed
- reference to the frame code.
-
-- bpo-40217: Ensure that instances of types created with
- :c:func:`PyType_FromSpecWithBases` will visit its class object when
- traversing references in the garbage collector (implemented as an
- extension of the provided :c:member:`~PyTypeObject.tp_traverse`). Patch by
- Pablo Galindo.
-
-- bpo-38787: Module C state is now accessible from C-defined heap type
- methods (:pep:`573`). Patch by Marcel Plch and Petr Viktorin.
-
-
-What's New in Python 3.9.0 alpha 6?
-===================================
-
-*Release date: 2020-04-27*
-
-Security
---------
-
-- bpo-40121: Fixes audit events raised on creating a new socket.
-
-- bpo-39073: Disallow CR or LF in email.headerregistry.Address arguments to
- guard against header injection attacks.
-
-- bpo-39503: CVE-2020-8492: The
- :class:`~urllib.request.AbstractBasicAuthHandler` class of the
- :mod:`urllib.request` module uses an inefficient regular expression which
- can be exploited by an attacker to cause a denial of service. Fix the
- regex to prevent the catastrophic backtracking. Vulnerability reported by
- Ben Caller and Matt Schwager.
-
-Core and Builtins
------------------
-
-- bpo-40313: Improve the performance of bytes.hex().
-
-- bpo-40334: Switch to a new parser, based on PEG. For more details see PEP
- 617. To temporarily switch back to the old parser, use ``-X oldparser`` or
- ``PYTHONOLDPARSER=1``. In Python 3.10 we will remove the old parser
- completely, including the ``parser`` module (already deprecated) and
- anything that depends on it.
-
-- bpo-40267: Fix the tokenizer to display the correct error message, when
- there is a SyntaxError on the last input character and no newline follows.
- It used to be `unexpected EOF while parsing`, while it should be `invalid
- syntax`.
-
-- bpo-39522: Correctly unparse explicit ``u`` prefix for strings when
- postponed evaluation for annotations activated. Patch by Batuhan Taskaya.
-
-- bpo-40246: Report a specialized error message, `invalid string prefix`,
- when the tokenizer encounters a string with an invalid prefix.
-
-- bpo-40082: Fix the signal handler: it now always uses the main
- interpreter, rather than trying to get the current Python thread state.
-
-- bpo-37388: str.encode() and str.decode() no longer check the encoding and
- errors in development mode or in debug mode during Python finalization.
- The codecs machinery can no longer work on very late calls to str.encode()
- and str.decode().
-
-- bpo-40077: Fix possible refleaks in :mod:`_json`, memo of PyScannerObject
- should be traversed.
-
-- bpo-37207: Speed up calls to ``dict()`` by using the :pep:`590`
- ``vectorcall`` calling convention.
-
-- bpo-40141: Add column and line information to ``ast.keyword`` nodes. Patch
- by Pablo Galindo.
-
-- bpo-1635741: Port :mod:`resource` to multiphase initialization
- (:pep:`489`).
-
-- bpo-1635741: Port :mod:`math` to multiphase initialization (:pep:`489`).
-
-- bpo-1635741: Port _uuid module to multiphase initialization (:pep:`489`).
-
-- bpo-40077: Convert json module to use :c:func:`PyType_FromSpec`.
-
-- bpo-40067: Improve the error message for multiple star expressions in an
- assignment. Patch by Furkan Onder
-
-- bpo-1635741: Port _functools module to multiphase initialization (PEP
- 489). Patch by Paulo Henrique Silva.
-
-- bpo-1635741: Port operator module to multiphase initialization (PEP 489).
- Patch by Paulo Henrique Silva.
-
-- bpo-20526: Fix :c:func:`PyThreadState_Clear()`. ``PyThreadState.frame`` is
- a borrowed reference, not a strong reference: ``PyThreadState_Clear()``
- must not call ``Py_CLEAR(tstate->frame)``.
-
-- bpo-1635741: Port time module to multiphase initialization (:pep:`489`).
- Patch by Paulo Henrique Silva.
-
-- bpo-1635741: Port _weakref extension module to multiphase initialization
- (:pep:`489`).
-
-- bpo-40020: Fix a leak and subsequent crash in parsetok.c caused by realloc
- misuse on a rare codepath.
-
-- bpo-39939: Added str.removeprefix and str.removesuffix methods and
- corresponding bytes, bytearray, and collections.UserString methods to
- remove affixes from a string if present. See :pep:`616` for a full
- description. Patch by Dennis Sweeney.
-
-- bpo-39481: Implement PEP 585. This supports list[int], tuple[str, ...]
- etc.
-
-- bpo-32894: Support unparsing of infinity numbers in postponed annotations.
- Patch by Batuhan Taşkaya.
-
-- bpo-37207: Speed up calls to ``list()`` by using the :pep:`590`
- ``vectorcall`` calling convention. Patch by Mark Shannon.
-
-Library
--------
-
-- bpo-40398: :func:`typing.get_args` now always returns an empty tuple for
- special generic aliases.
-
-- bpo-40396: Functions :func:`typing.get_origin`, :func:`typing.get_args`
- and :func:`typing.get_type_hints` support now generic aliases like
- ``list[int]``.
-
-- bpo-38061: Optimize the :mod:`subprocess` module on FreeBSD using
- ``closefrom()``. A single ``close(fd)`` syscall is cheap, but when
- ``sysconf(_SC_OPEN_MAX)`` is high, the loop calling ``close(fd)`` on each
- file descriptor can take several milliseconds.
-
- The workaround on FreeBSD to improve performance was to load and mount the
- fdescfs kernel module, but this is not enabled by default.
-
- Initial patch by Ed Maste (emaste), Conrad Meyer (cem), Kyle Evans
- (kevans) and Kubilay Kocak (koobs):
- https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242274
-
-- bpo-38061: On FreeBSD, ``os.closerange(fd_low, fd_high)`` now calls
- ``closefrom(fd_low)`` if *fd_high* is greater than or equal to
- ``sysconf(_SC_OPEN_MAX)``.
-
- Initial patch by Ed Maste (emaste), Conrad Meyer (cem), Kyle Evans
- (kevans) and Kubilay Kocak (koobs):
- https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242274
-
-- bpo-40360: The :mod:`lib2to3` module is pending deprecation due to
- :pep:`617`.
-
-- bpo-40138: Fix the Windows implementation of :func:`os.waitpid` for exit
- code larger than ``INT_MAX >> 8``. The exit status is now interpreted as
- an unsigned number.
-
-- bpo-39942: Set "__main__" as the default module name when "__name__" is
- missing in :class:`typing.TypeVar`. Patch by Weipeng Hong.
-
-- bpo-40275: The :mod:`logging` package is now imported lazily in
- :mod:`unittest` only when the :meth:`~unittest.TestCase.assertLogs`
- assertion is used.
-
-- bpo-40275: The :mod:`asyncio` package is now imported lazily in
- :mod:`unittest` only when the :class:`~unittest.IsolatedAsyncioTestCase`
- class is used.
-
-- bpo-40330: In :meth:`ShareableList.__setitem__`, check the size of a new
- string item after encoding it to utf-8, not before.
-
-- bpo-40148: Added :meth:`pathlib.Path.with_stem()` to create a new Path
- with the stem replaced.
-
-- bpo-40325: Deprecated support for set objects in random.sample().
-
-- bpo-40257: Improved help for the :mod:`typing` module. Docstrings are now
- shown for all special forms and special generic aliases (like ``Union``
- and ``List``). Using ``help()`` with generic alias like ``List[int]`` will
- show the help for the correspondent concrete type (``list`` in this case).
-
-- bpo-40257: func:`inspect.getdoc` no longer returns docstring inherited
- from the type of the object or from parent class if it is a class if it is
- not defined in the object itself. In :mod:`pydoc` the documentation string
- is now shown not only for class, function, method etc, but for any object
- that has its own ``__doc__`` attribute.
-
-- bpo-40287: Fixed ``SpooledTemporaryFile.seek()`` to return the position.
-
-- bpo-40290: Added zscore() to statistics.NormalDist().
-
-- bpo-40282: Allow ``random.getrandbits(0)`` to succeed and to return 0.
-
-- bpo-40286: Add :func:`random.randbytes` function and
- :meth:`random.Random.randbytes` method to generate random bytes.
-
-- bpo-40277: :func:`collections.namedtuple` now provides a human-readable
- repr for its field accessors.
-
-- bpo-40270: The included copy of sqlite3 on Windows is now compiled with
- the json extension. This allows the use of functions such as
- ``json_object``.
-
-- bpo-29255: Wait in `KqueueSelector.select` when no fds are registered
-
-- bpo-40260: Ensure :mod:`modulefinder` uses :func:`io.open_code` and
- respects coding comments.
-
-- bpo-40234: Allow again to spawn daemon threads in subinterpreters (revert
- change which denied them).
-
-- bpo-39207: Workers in :class:`~concurrent.futures.ProcessPoolExecutor` are
- now spawned on demand, only when there are no available idle workers to
- reuse. This optimizes startup overhead and reduces the amount of lost CPU
- time to idle workers. Patch by Kyle Stanley.
-
-- bpo-40091: Fix a hang at fork in the logging module: the new private
- _at_fork_reinit() method is now used to reinitialize locks at fork in the
- child process.
-
-- bpo-40149: Implement traverse and clear slots in _abc._abc_data type.
-
-- bpo-40208: Remove deprecated :meth:`symtable.SymbolTable.has_exec`.
-
-- bpo-40196: Fix a bug in the :mod:`symtable` module that was causing
- incorrectly report global variables as local. Patch by Pablo Galindo.
-
-- bpo-40190: Add support for ``_SC_AIX_REALMEM`` to :func:`posix.sysconf`.
-
-- bpo-40182: Removed the ``_field_types`` attribute of the
- :class:`typing.NamedTuple` class.
-
-- bpo-36517: Multiple inheritance with :class:`typing.NamedTuple` now raises
- an error instead of silently ignoring other types.
-
-- bpo-40126: Fixed reverting multiple patches in unittest.mock. Patcher's
- ``__exit__()`` is now never called if its ``__enter__()`` is failed.
- Returning true from ``__exit__()`` silences now the exception.
-
-- bpo-40094: CGIHTTPRequestHandler of http.server now logs the CGI script
- exit code, rather than the CGI script exit status of os.waitpid(). For
- example, if the script is killed by signal 11, it now logs: "CGI script
- exit code -11."
-
-- bpo-40108: Improve the error message when triying to import a module using
- :mod:`runpy` and incorrently use the ".py" extension at the end of the
- module name. Patch by Pablo Galindo.
-
-- bpo-40094: Add :func:`os.waitstatus_to_exitcode` function: convert a wait
- status to an exit code.
-
-- bpo-40089: Fix threading._after_fork(): if fork was not called by a thread
- spawned by threading.Thread, threading._after_fork() now creates a
- _MainThread instance for _main_thread, instead of a _DummyThread instance.
-
-- bpo-40089: Add a private ``_at_fork_reinit()`` method to
- :class:`_thread.Lock`, :class:`_thread.RLock`, :class:`threading.RLock`
- and :class:`threading.Condition` classes: reinitialize the lock at fork in
- the child process, reset the lock to the unlocked state. Rename also the
- private ``_reset_internal_locks()`` method of :class:`threading.Event` to
- ``_at_fork_reinit()``.
-
-- bpo-25780: Expose :data:`~socket.CAN_RAW_JOIN_FILTERS` in the
- :mod:`socket` module.
-
-- bpo-39503: :class:`~urllib.request.AbstractBasicAuthHandler` of
- :mod:`urllib.request` now parses all WWW-Authenticate HTTP headers and
- accepts multiple challenges per header: use the realm of the first Basic
- challenge.
-
-- bpo-39812: Removed daemon threads from :mod:`concurrent.futures` by adding
- an internal `threading._register_atexit()`, which calls registered
- functions prior to joining all non-daemon threads. This allows for
- compatibility with subinterpreters, which don't support daemon threads.
-
-- bpo-40050: Fix ``importlib._bootstrap_external``: avoid creating a new
- ``winreg`` builtin module if it's already available in
- :data:`sys.modules`, and remove redundant imports.
-
-- bpo-40014: Fix ``os.getgrouplist()``: if ``getgrouplist()`` function fails
- because the group list is too small, retry with a larger group list. On
- failure, the glibc implementation of ``getgrouplist()`` sets ``ngroups``
- to the total number of groups. For other implementations, double the group
- list size.
-
-- bpo-40017: Add :data:`time.CLOCK_TAI` constant if the operating system
- support it.
-
-- bpo-40016: In re docstring, clarify the relationship between inline and
- argument compile flags.
-
-- bpo-39953: Update internal table of OpenSSL error codes in the ``ssl``
- module.
-
-- bpo-36144: Added :pep:`584` operators to
- :class:`weakref.WeakValueDictionary`.
-
-- bpo-36144: Added :pep:`584` operators to
- :class:`weakref.WeakKeyDictionary`.
-
-- bpo-38891: Fix linear runtime behaviour of the `__getitem__` and
- `__setitem__` methods in
- :class:`multiprocessing.shared_memory.ShareableList`. This avoids
- quadratic performance when iterating a `ShareableList`. Patch by Thomas
- Krennwallner.
-
-- bpo-39682: Remove undocumented support for *closing* a `pathlib.Path`
- object via its context manager. The context manager magic methods remain,
- but they are now a no-op, making `Path` objects immutable.
-
-- bpo-36144: Added :pep:`584` operators (``|`` and ``|=``) to
- :class:`collections.ChainMap`.
-
-- bpo-39011: Normalization of line endings in ElementTree attributes was
- removed, as line endings which were replaced by entity numbers should be
- preserved in original form.
-
-- bpo-38410: Properly handle :func:`sys.audit` failures in
- :func:`sys.set_asyncgen_hooks`.
-
-- bpo-36541: lib2to3 now recognizes named assignment expressions (the walrus
- operator, ``:=``)
-
-- bpo-35967: In platform, delay the invocation of 'uname -p' until the
- processor attribute is requested.
-
-- bpo-35113: :meth:`inspect.getsource` now returns correct source code for
- inner class with same name as module level class. Decorators are also
- returned as part of source of the class. Patch by Karthikeyan
- Singaravelan.
-
-- bpo-33262: Deprecate passing None as an argument for
- :func:`shlex.split()`'s ``s`` parameter. Patch by Zackery Spytz.
-
-- bpo-31758: Prevent crashes when using an uninitialized
- ``_elementtree.XMLParser`` object. Patch by Oren Milman.
-
-Documentation
--------------
-
-- bpo-27635: The pickle documentation incorrectly claimed that ``__new__``
- isn't called by default when unpickling.
-
-- bpo-39879: Updated :ref:`datamodel` docs to include :func:`dict` insertion
- order preservation. Patch by Furkan Onder and Samy Lahfa.
-
-- bpo-38387: Document :c:macro:`PyDoc_STRVAR` macro in the C-API reference.
-
-- bpo-13743: Some methods within xml.dom.minidom.Element class are now
- better documented.
-
-Tests
------
-
-- bpo-31904: Set expected default encoding in test_c_locale_coercion.py for
- VxWorks RTOS.
-
-- bpo-40162: Update Travis CI configuration to OpenSSL 1.1.1f.
-
-- bpo-40146: Update OpenSSL to 1.1.1f in Azure Pipelines.
-
-- bpo-40094: Add :func:`test.support.wait_process` function.
-
-- bpo-40003: ``test.bisect_cmd`` now copies Python command line options like
- ``-O`` or ``-W``. Moreover, emit a warning if ``test.bisect_cmd`` is used
- with ``-w``/``--verbose2`` option.
-
-- bpo-39380: Add the encoding in :class:`ftplib.FTP` and
- :class:`ftplib.FTP_TLS` to the constructor as keyword-only and change the
- default from ``latin-1`` to ``utf-8`` to follow :rfc:`2640`.
-
-- bpo-39793: Use the same domain when testing ``make_msgid``. Patch by
- Batuhan Taskaya.
-
-- bpo-1812: Fix newline handling in doctest.testfile when loading from a
- package whose loader has a get_data method. Patch by Peter Donis.
-
-Build
------
-
-- bpo-38360: Support single-argument form of macOS -isysroot flag.
-
-- bpo-40158: Fix CPython MSBuild Properties in NuGet Package
- (build/native/python.props)
-
-- bpo-38527: Fix configure check on Solaris for "float word ordering":
- sometimes, the correct "grep" command was not being used. Patch by Arnon
- Yaari.
-
-Windows
--------
-
-- bpo-40164: Updates Windows to OpenSSL 1.1.1f
-
-- bpo-8901: Ignore the Windows registry when the ``-E`` option is used.
-
-macOS
------
-
-- bpo-38329: python.org macOS installers now update the Current version
- symlink of /Library/Frameworks/Python.framework/Versions for 3.9 installs.
- Previously, Current was only updated for Python 2.x installs. This should
- make it easier to embed Python 3 into other macOS applications.
-
-- bpo-40164: Update macOS installer builds to use OpenSSL 1.1.1g.
-
-IDLE
-----
-
-- bpo-38439: Add a 256×256 pixel IDLE icon to support more modern
- environments. Created by Andrew Clover. Delete the unused macOS idle.icns
- icon file.
-
-- bpo-38689: IDLE will no longer freeze when inspect.signature fails when
- fetching a calltip.
-
-Tools/Demos
------------
-
-- bpo-40385: Removed the checkpyc.py tool. Please see compileall without
- force mode as a potential alternative.
-
-- bpo-40179: Fixed translation of ``#elif`` in Argument Clinic.
-
-- bpo-40094: Fix ``which.py`` script exit code: it now uses
- :func:`os.waitstatus_to_exitcode` to convert :func:`os.system` exit status
- into an exit code.
-
-C API
------
-
-- bpo-40241: Move the :c:type:`PyGC_Head` structure to the internal C API.
-
-- bpo-40170: Convert :c:func:`PyObject_IS_GC` macro to a function to hide
- implementation details.
-
-- bpo-40241: Add the functions :c:func:`PyObject_GC_IsTracked` and
- :c:func:`PyObject_GC_IsFinalized` to the public API to allow to query if
- Python objects are being currently tracked or have been already finalized
- by the garbage collector respectively. Patch by Pablo Galindo.
-
-- bpo-40170: The :c:func:`PyObject_NEW` macro becomes an alias to the
- :c:func:`PyObject_New` macro, and the :c:func:`PyObject_NEW_VAR` macro
- becomes an alias to the :c:func:`PyObject_NewVar` macro, to hide
- implementation details. They no longer access directly the
- :c:member:`PyTypeObject.tp_basicsize` member.
-
-- bpo-40170: :c:func:`PyType_HasFeature` now always calls
- :c:func:`PyType_GetFlags` to hide implementation details. Previously, it
- accessed directly the :c:member:`PyTypeObject.tp_flags` member when the
- limited C API was not used.
-
-- bpo-40170: Convert the :c:func:`PyObject_GET_WEAKREFS_LISTPTR` macro to a
- function to hide implementation details: the macro accessed directly to
- the :c:member:`PyTypeObject.tp_weaklistoffset` member.
-
-- bpo-40170: Convert :c:func:`PyObject_CheckBuffer` macro to a function to
- hide implementation details: the macro accessed directly the
- :c:member:`PyTypeObject.tp_as_buffer` member.
-
-- bpo-40170: Always declare :c:func:`PyIndex_Check` as an opaque function to
- hide implementation details: remove ``PyIndex_Check()`` macro. The macro
- accessed directly the :c:member:`PyTypeObject.tp_as_number` member.
-
-- bpo-39947: Add :c:func:`PyThreadState_GetID` function: get the unique
- identifier of a Python thread state.
-
-
-What's New in Python 3.9.0 alpha 5?
-===================================
-
-*Release date: 2020-03-23*
-
-Security
---------
-
-- bpo-38576: Disallow control characters in hostnames in http.client,
- addressing CVE-2019-18348. Such potentially malicious header injection
- URLs now cause a InvalidURL to be raised.
-
-Core and Builtins
------------------
-
-- bpo-40010: Optimize pending calls in multithreaded applications. If a
- thread different than the main thread schedules a pending call
- (:c:func:`Py_AddPendingCall`), the bytecode evaluation loop is no longer
- interrupted at each bytecode instruction to check for pending calls which
- cannot be executed. Only the main thread can execute pending calls.
-
- Previously, the bytecode evaluation loop was interrupted at each
- instruction until the main thread executes pending calls.
-
-- bpo-1635741: Port _weakref extension module to multiphase initialization
- (:pep:`489`).
-
-- bpo-1635741: Port _collections module to multiphase initialization
- (:pep:`489`).
-
-- bpo-40010: Optimize signal handling in multithreaded applications. If a
- thread different than the main thread gets a signal, the bytecode
- evaluation loop is no longer interrupted at each bytecode instruction to
- check for pending signals which cannot be handled. Only the main thread of
- the main interpreter can handle signals.
-
- Previously, the bytecode evaluation loop was interrupted at each
- instruction until the main thread handles signals.
-
-- bpo-39984: If :c:func:`Py_AddPendingCall` is called in a subinterpreter,
- the function is now scheduled to be called from the subinterpreter, rather
- than being called from the main interpreter. Each subinterpreter now has
- its own list of scheduled calls.
-
-- bpo-1635741: Port _heapq module to multiphase initialization.
-
-- bpo-1635741: Port itertools module to multiphase initialization
- (:pep:`489`).
-
-- bpo-37207: Speed up calls to ``frozenset()`` by using the :pep:`590`
- ``vectorcall`` calling convention. Patch by Dong-hee Na.
-
-- bpo-39984: subinterpreters: Move
- ``_PyRuntimeState.ceval.tracing_possible`` to
- ``PyInterpreterState.ceval.tracing_possible``: each interpreter now has
- its own variable.
-
-- bpo-37207: Speed up calls to ``set()`` by using the :pep:`590`
- ``vectorcall`` calling convention. Patch by Dong-hee Na.
-
-- bpo-1635741: Port _statistics module to multiphase initialization
- (:pep:`489`).
-
-- bpo-39968: Use inline function to replace extension modules'
- get_module_state macros.
-
-- bpo-39965: Correctly raise ``SyntaxError`` if *await* is used inside
- non-async functions and ``PyCF_ALLOW_TOP_LEVEL_AWAIT`` is set (like in the
- asyncio REPL). Patch by Pablo Galindo.
-
-- bpo-39562: Allow executing asynchronous comprehensions on the top level
- when the ``PyCF_ALLOW_TOP_LEVEL_AWAIT`` flag is given. Patch by Batuhan
- Taskaya.
-
-- bpo-37207: Speed up calls to ``tuple()`` by using the :pep:`590`
- ``vectorcall`` calling convention. Patch by Dong-hee Na.
-
-- bpo-38373: Changed list overallocation strategy. It no longer
- overallocates if the new size is closer to overallocated size than to the
- old size and adds padding.
-
-- bpo-39926: Update Unicode database to Unicode version 13.0.0.
-
-- bpo-19466: Clear the frames of daemon threads earlier during the Python
- shutdown to call objects destructors. So "unclosed file" resource warnings
- are now emitted for daemon threads in a more reliable way.
-
-- bpo-38894: Fix a bug that was causing incomplete results when calling
- ``pathlib.Path.glob`` in the presence of symlinks that point to files
- where the user does not have read access. Patch by Pablo Galindo and Matt
- Wozniski.
-
-- bpo-39877: Fix :c:func:`PyEval_RestoreThread` random crash at exit with
- daemon threads. It now accesses the ``_PyRuntime`` variable directly
- instead of using ``tstate->interp->runtime``, since ``tstate`` can be a
- dangling pointer after :c:func:`Py_Finalize` has been called. Moreover,
- the daemon thread now exits before trying to take the GIL.
-
-- bpo-39871: Fix a possible :exc:`SystemError` in
- ``math.{atan2,copysign,remainder}()`` when the first argument cannot be
- converted to a :class:`float`. Patch by Zackery Spytz.
-
-- bpo-39776: Fix race condition where threads created by PyGILState_Ensure()
- could get a duplicate id.
-
- This affects consumers of tstate->id like the contextvar caching
- machinery, which could return invalid cached objects under heavy thread
- load (observed in embedded scenarios).
-
-- bpo-39778: Fixed a crash due to incorrect handling of weak references in
- ``collections.OrderedDict`` classes. Patch by Pablo Galindo.
-
-- bpo-1635741: Port audioop extension module to multiphase initialization
- (:pep:`489`).
-
-- bpo-39702: Relax :term:`decorator` grammar restrictions to allow any valid
- expression (:pep:`614`).
-
-- bpo-38091: Tweak import deadlock detection code to not deadlock itself.
-
-- bpo-1635741: Port _locale extension module to multiphase initialization
- (:pep:`489`).
-
-- bpo-39087: Optimize :c:func:`PyUnicode_AsUTF8` and
- :c:func:`PyUnicode_AsUTF8AndSize` slightly when they need to create
- internal UTF-8 cache.
-
-- bpo-39520: Fix unparsing of ext slices with no items (``foo[:,]``). Patch
- by Batuhan Taskaya.
-
-- bpo-39220: Do not optimize annotations if 'from __future__ import
- annotations' is used. Patch by Pablo Galindo.
-
-- bpo-35712: Using :data:`NotImplemented` in a boolean context has been
- deprecated. Patch contributed by Josh Rosenberg.
-
-- bpo-22490: Don't leak environment variable ``__PYVENV_LAUNCHER__`` into
- the interpreter session on macOS.
-
-Library
--------
-
-- bpo-39830: Add :class:`zipfile.Path` to ``__all__`` in the :mod:`zipfile`
- module.
-
-- bpo-40000: Improved error messages for validation of ``ast.Constant``
- nodes. Patch by Batuhan Taskaya.
-
-- bpo-39999: ``__module__`` of the AST node classes is now set to "ast"
- instead of "_ast". Added docstrings for dummy AST node classes and
- deprecated attributes.
-
-- bpo-39991: :func:`uuid.getnode` now skips IPv6 addresses with the same
- string length than a MAC address (17 characters): only use MAC addresses.
-
-- bpo-39988: Deprecated ``ast.AugLoad`` and ``ast.AugStore`` node classes
- because they are no longer used.
-
-- bpo-39656: Ensure ``bin/python3.#`` is always present in virtual
- environments on POSIX platforms - by Anthony Sottile.
-
-- bpo-39969: Deprecated ``ast.Param`` node class because it's no longer
- used. Patch by Batuhan Taskaya.
-
-- bpo-39360: Ensure all workers exit when finalizing a
- :class:`multiprocessing.Pool` implicitly via the module finalization
- handlers of multiprocessing. This fixes a deadlock situation that can be
- experienced when the Pool is not properly finalized via the context
- manager or a call to ``multiprocessing.Pool.terminate``. Patch by Batuhan
- Taskaya and Pablo Galindo.
-
-- bpo-35370: sys.settrace(), sys.setprofile() and _lsprof.Profiler.enable()
- now properly report :c:func:`PySys_Audit` error if "sys.setprofile" or
- "sys.settrace" audit event is denied.
-
-- bpo-39936: AIX: Fix _aix_support module when the subprocess is not
- available, when building Python from scratch. It now uses new private
- _bootsubprocess module, rather than having two implementations depending
- if subprocess is available or not. So _aix_support.aix_platform() result
- is now the same if subprocess is available or not.
-
-- bpo-36144: :class:`collections.OrderedDict` now implements ``|`` and
- ``|=`` (:pep:`584`).
-
-- bpo-39652: The column name found in ``sqlite3.Cursor.description`` is now
- truncated on the first '[' only if the PARSE_COLNAMES option is set.
-
-- bpo-39915: Ensure :attr:`unittest.mock.AsyncMock.await_args_list` has call
- objects in the order of awaited arguments instead of using
- :attr:`unittest.mock.Mock.call_args` which has the last value of the call.
- Patch by Karthikeyan Singaravelan.
-
-- bpo-36144: Updated :data:`os.environ` and :data:`os.environb` to support
- :pep:`584`'s merge (``|``) and update (``|=``) operators.
-
-- bpo-38662: The ``ensurepip`` module now invokes ``pip`` via the ``runpy``
- module. Hence it is no longer tightly coupled with the internal API of the
- bundled ``pip`` version, allowing easier updates to a newer ``pip``
- version both internally and for distributors.
-
-- bpo-38075: Fix the :meth:`random.Random.seed` method when a :class:`bool`
- is passed as the seed.
-
-- bpo-39916: More reliable use of ``os.scandir()`` in ``Path.glob()``. It no
- longer emits a ResourceWarning when interrupted.
-
-- bpo-39850: :mod:`multiprocessing` now supports abstract socket addresses
- (if abstract sockets are supported in the running platform). When creating
- arbitrary addresses (like when default-constructing
- :class:`multiprocessing.connection.Listener` objects) abstract sockets are
- preferred to avoid the case when the temporary-file-generated address is
- too large for an AF_UNIX socket address. Patch by Pablo Galindo.
-
-- bpo-36287: :func:`ast.dump()` no longer outputs optional fields and
- attributes with default values. The default values for optional fields and
- attributes of AST nodes are now set as class attributes (e.g.
- ``Constant.kind`` is set to ``None``).
-
-- bpo-39889: Fixed :func:`ast.unparse` for extended slices containing a
- single element (e.g. ``a[i:j,]``). Remove redundant tuples when index with
- a tuple (e.g. ``a[i, j]``).
-
-- bpo-39828: Fix :mod:`json.tool` to catch :exc:`BrokenPipeError`. Patch by
- Dong-hee Na.
-
-- bpo-13487: Avoid a possible *"RuntimeError: dictionary changed size during
- iteration"* from :func:`inspect.getmodule` when it tried to loop through
- :attr:`sys.modules`.
-
-- bpo-39674: Revert "bpo-37330: open() no longer accept 'U' in file mode".
- The "U" mode of open() is kept in Python 3.9 to ease transition from
- Python 2.7, but will be removed in Python 3.10.
-
-- bpo-28577: The hosts method on 32-bit prefix length IPv4Networks and
- 128-bit prefix IPv6Networks now returns a list containing the single
- Address instead of an empty list.
-
-- bpo-39826: Add getConnection method to logging HTTPHandler to enable
- custom connections.
-
-- bpo-39763: Reimplement :func:`distutils.spawn.spawn` function with the
- :mod:`subprocess` module.
-
-- bpo-39794: Add --without-decimal-contextvar build option. This enables a
- thread-local rather than a coroutine local context.
-
-- bpo-36144: :class:`collections.defaultdict` now implements ``|``
- (:pep:`584`).
-
-- bpo-39517: Fix runpy.run_path() when using pathlike objects
-
-- bpo-39775: Change ``inspect.Signature.parameters`` back to
- ``collections.OrderedDict``. This was changed to ``dict`` in Python
- 3.9.0a4.
-
-- bpo-39678: Refactor queue_manager in
- :class:`concurrent.futures.ProcessPoolExecutor` to make it easier to
- maintain.
-
-- bpo-39764: Fix AttributeError when calling get_stack on a PyAsyncGenObject
- Task
-
-- bpo-39769: The :func:`compileall.compile_dir` function's *ddir* parameter
- and the compileall command line flag `-d` no longer write the wrong
- pathname to the generated pyc file for submodules beneath the root of the
- directory tree being compiled. This fixes a regression introduced with
- Python 3.5.
-
-- bpo-36144: :class:`types.MappingProxyType` objects now support the merge
- (``|``) operator from :pep:`584`.
-
-- bpo-38691: The :mod:`importlib` module now ignores the
- :envvar:`PYTHONCASEOK` environment variable when the :option:`-E` or
- :option:`-I` command line options are being used.
-
-- bpo-39719: Remove :meth:`tempfile.SpooledTemporaryFile.softspace` as files
- no longer have the ``softspace`` attribute in Python 3. Patch by Shantanu.
-
-- bpo-39667: Improve pathlib.Path compatibility on zipfile.Path and correct
- performance degradation as found in zipp 3.0.
-
-- bpo-39638: Keep ASDL signatures in the docstrings for ``AST`` nodes. Patch
- by Batuhan Taskaya
-
-- bpo-39639: Deprecated ``ast.Suite`` node class because it's no longer
- used. Patch by Batuhan Taskaya.
-
-- bpo-39609: Add thread_name_prefix to default asyncio executor
-
-- bpo-39548: Fix handling of header in
- :class:`urllib.request.AbstractDigestAuthHandler` when the optional
- ``qop`` parameter is not present.
-
-- bpo-39509: HTTP status codes ``103 EARLY_HINTS`` and ``425 TOO_EARLY`` are
- added to :class:`http.HTTPStatus`. Patch by Dong-hee Na.
-
-- bpo-39507: Adding HTTP status 418 "I'm a Teapot" to HTTPStatus in http
- library. Patch by Ross Rhodes.
-
-- bpo-39495: Remove default value from *attrs* parameter of
- :meth:`xml.etree.ElementTree.TreeBuilder.start` for consistency between
- Python and C implementations.
-
-- bpo-38971: Open issue in the BPO indicated a desire to make the
- implementation of codecs.open() at parity with io.open(), which implements
- a try/except to assure file stream gets closed before an exception is
- raised.
-
-- bpo-38641: Added starred expressions support to ``return`` and ``yield``
- statements for ``lib2to3``. Patch by Vlad Emelianov.
-
-- bpo-37534: When using minidom module to generate XML documents the ability
- to add Standalone Document Declaration is added. All the changes are made
- to generate a document in compliance with Extensible Markup Language (XML)
- 1.0 (Fifth Edition) W3C Recommendation (available here:
- https://www.w3.org/TR/xml/#sec-prolog-dtd).
-
-- bpo-34788: Add support for scoped IPv6 addresses to :mod:`ipaddress`.
- Patch by Oleksandr Pavliuk.
-
-- bpo-34822: Simplified AST for subscription. Simple indices are now
- represented by their value, extended slices are represented as tuples.
- :mod:`ast` classes ``Index`` and ``ExtSlice`` are considered deprecated
- and will be removed in future Python versions. In the meantime,
- ``Index(value)`` now returns a ``value`` itself, ``ExtSlice(slices)``
- returns ``Tuple(slices, Load())``.
-
-Documentation
--------------
-
-- bpo-39868: Updated the Language Reference for :pep:`572`.
-
-- bpo-13790: Change 'string' to 'specification' in format doc.
-
-- bpo-17422: The language reference no longer restricts default class
- namespaces to dicts only.
-
-- bpo-39530: Fix misleading documentation about mixed-type numeric
- comparisons.
-
-- bpo-39718: Update :mod:`token` documentation to reflect additions in
- Python 3.8
-
-- bpo-39677: Changed operand name of **MAKE_FUNCTION** from *argc* to
- *flags* for module :mod:`dis`
-
-Tests
------
-
-- bpo-40019: test_gdb now skips tests if it detects that gdb failed to read
- debug information because the Python binary is optimized.
-
-- bpo-27807: ``test_site.test_startup_imports()`` is now skipped if a path
- of :data:`sys.path` contains a ``.pth`` file.
-
-- bpo-26067: Do not fail test_shutil test_chown test when uid or gid of user
- cannot be resolved to a name.
-
-- bpo-39855: test_subprocess.test_user() now skips the test on an user name
- if the user name doesn't exist. For example, skip the test if the user
- "nobody" doesn't exist on Linux.
-
-Build
------
-
-- bpo-39761: Fix build with DTrace but without additional DFLAGS.
-
-- bpo-39763: setup.py now uses a basic implementation of the
- :mod:`subprocess` module if the :mod:`subprocess` module is not available:
- before required C extension modules are built.
-
-- bpo-1294959: Add ``--with-platlibdir`` option to the configure script:
- name of the platform-specific library directory, stored in the new
- :attr:`sys.platlibdir` attribute. It is used to build the path of
- platform-specific extension modules and the path of the standard library.
- It is equal to ``"lib"`` on most platforms. On Fedora and SuSE, it is
- equal to ``"lib64"`` on 64-bit platforms. Patch by Jan Matějek, Matěj
- Cepl, Charalampos Stratakis and Victor Stinner.
-
-Windows
--------
-
-- bpo-39930: Ensures the required :file:`vcruntime140.dll` is included in
- install packages.
-
-- bpo-39847: Avoid hang when computer is hibernated whilst waiting for a
- mutex (for lock-related objects from :mod:`threading`) around 49-day
- uptime.
-
-- bpo-38597: :mod:`distutils` will no longer statically link
- :file:`vcruntime140.dll` when a redistributable version is unavailable.
- All future releases of CPython will include a copy of this DLL to ensure
- distributed extensions can continue to load.
-
-- bpo-38380: Update Windows builds to use SQLite 3.31.1
-
-- bpo-39789: Update Windows release build machines to Visual Studio 2019
- (MSVC 14.2).
-
-- bpo-34803: Package for nuget.org now includes repository reference and
- bundled icon image.
-
-macOS
------
-
-- bpo-38380: Update macOS builds to use SQLite 3.31.1
-
-IDLE
-----
-
-- bpo-27115: For 'Go to Line', use a Query box subclass with IDLE standard
- behavior and improved error checking.
-
-- bpo-39885: Since clicking to get an IDLE context menu moves the cursor,
- any text selection should be and now is cleared.
-
-- bpo-39852: Edit "Go to line" now clears any selection, preventing
- accidental deletion. It also updates Ln and Col on the status bar.
-
-- bpo-39781: Selecting code context lines no longer causes a jump.
-
-Tools/Demos
------------
-
-- bpo-36184: Port python-gdb.py to FreeBSD. python-gdb.py now checks for
- "take_gil" function name to check if a frame tries to acquire the GIL,
- instead of checking for "pthread_cond_timedwait" which is specific to
- Linux and can be a different condition than the GIL.
-
-- bpo-38080: Added support to fix ``getproxies`` in the
- :mod:`lib2to3.fixes.fix_urllib` module. Patch by José Roberto Meza
- Cabrera.
-
-C API
------
-
-- bpo-40024: Add :c:func:`PyModule_AddType` helper function: add a type to a
- module. Patch by Dong-hee Na.
-
-- bpo-39946: Remove ``_PyRuntime.getframe`` hook and remove
- ``_PyThreadState_GetFrame`` macro which was an alias to
- ``_PyRuntime.getframe``. They were only exposed by the internal C API.
- Remove also ``PyThreadFrameGetter`` type.
-
-- bpo-39947: Add :c:func:`PyThreadState_GetFrame` function: get the current
- frame of a Python thread state.
-
-- bpo-37207: Add _PyArg_NoKwnames helper function. Patch by Dong-hee Na.
-
-- bpo-39947: Add :c:func:`PyThreadState_GetInterpreter`: get the interpreter
- of a Python thread state.
-
-- bpo-39947: Add :c:func:`PyInterpreterState_Get` function to the limited C
- API.
-
-- bpo-35370: If :c:func:`PySys_Audit` fails in :c:func:`PyEval_SetProfile`
- or :c:func:`PyEval_SetTrace`, log the error as an unraisable exception.
-
-- bpo-39947: Move the static inline function flavor of
- Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() to the internal C API:
- they access PyThreadState attributes. The limited C API provides regular
- functions which hide implementation details.
-
-- bpo-39947: Py_TRASHCAN_BEGIN_CONDITION and Py_TRASHCAN_END macro no longer
- access PyThreadState attributes, but call new private _PyTrash_begin() and
- _PyTrash_end() functions which hide implementation details.
-
-- bpo-39884: :c:func:`PyDescr_NewMethod` and :c:func:`PyCFunction_NewEx` now
- include the method name in the SystemError "bad call flags" error message
- to ease debug.
-
-- bpo-39877: Deprecated :c:func:`PyEval_InitThreads` and
- :c:func:`PyEval_ThreadsInitialized`. Calling :c:func:`PyEval_InitThreads`
- now does nothing.
-
-- bpo-38249: :c:macro:`Py_UNREACHABLE` is now implemented with
- ``__builtin_unreachable()`` and analogs in release mode.
-
-- bpo-38643: :c:func:`PyNumber_ToBase` now raises a :exc:`SystemError`
- instead of crashing when called with invalid base.
-
-- bpo-39882: The :c:func:`Py_FatalError` function is replaced with a macro
- which logs automatically the name of the current function, unless the
- ``Py_LIMITED_API`` macro is defined.
-
-- bpo-39824: Extension modules: :c:member:`~PyModuleDef.m_traverse`,
- :c:member:`~PyModuleDef.m_clear` and :c:member:`~PyModuleDef.m_free`
- functions of :c:type:`PyModuleDef` are no longer called if the module
- state was requested but is not allocated yet. This is the case immediately
- after the module is created and before the module is executed
- (:c:data:`Py_mod_exec` function). More precisely, these functions are not
- called if :c:member:`~PyModuleDef.m_size` is greater than 0 and the module
- state (as returned by :c:func:`PyModule_GetState`) is ``NULL``.
-
- Extension modules without module state (``m_size <= 0``) are not affected.
-
-- bpo-38913: Fixed segfault in ``Py_BuildValue()`` called with a format
- containing "#" and undefined PY_SSIZE_T_CLEAN whwn an exception is set.
-
-- bpo-38500: Add a private API to get and set the frame evaluation function:
- add :c:func:`_PyInterpreterState_GetEvalFrameFunc` and
- :c:func:`_PyInterpreterState_SetEvalFrameFunc` C functions. The
- :c:type:`_PyFrameEvalFunction` function type now takes a *tstate*
- parameter.
-
-
-What's New in Python 3.9.0 alpha 4?
-===================================
-
-*Release date: 2020-02-25*
-
-Security
---------
-
-- bpo-39184: Add audit events to functions in `fcntl`, `msvcrt`, `os`,
- `resource`, `shutil`, `signal` and `syslog`.
-
-- bpo-39401: Avoid unsafe DLL load at startup on Windows 7 and earlier.
-
-- bpo-39184: Add audit events to command execution functions in os and pty
- modules.
-
-Core and Builtins
------------------
-
-- bpo-39382: Fix a use-after-free in the single inheritance path of
- ``issubclass()``, when the ``__bases__`` of an object has a single
- reference, and so does its first item. Patch by Yonatan Goldschmidt.
-
-- bpo-39573: Update clinic tool to use :c:func:`Py_IS_TYPE`. Patch by
- Dong-hee Na.
-
-- bpo-39619: Enable use of :func:`os.chroot` on HP-UX systems.
-
-- bpo-39573: Add :c:func:`Py_IS_TYPE` static inline function to check
- whether the object *o* type is *type*.
-
-- bpo-39606: Fix regression caused by fix for bpo-39386, that prevented
- calling ``aclose`` on an async generator that had already been closed or
- exhausted.
-
-- bpo-39579: Change the ending column offset of `Attribute` nodes
- constructed in `ast_for_dotted_name` to point at the end of the current
- node and not at the end of the last `NAME` node.
-
-- bpo-1635741: Port _crypt extension module to multiphase initialization
- (:pep:`489`).
-
-- bpo-1635741: Port _contextvars extension module to multiphase
- initialization (:pep:`489`).
-
-- bpo-39510: Fix segfault in ``readinto()`` method on closed BufferedReader.
-
-- bpo-39502: Fix :func:`time.localtime` on 64-bit AIX to support years
- before 1902 and after 2038. Patch by M Felt.
-
-- bpo-39492: Fix a reference cycle in the C Pickler that was preventing the
- garbage collection of deleted, pickled objects.
-
-- bpo-39453: Fixed a possible crash in :meth:`list.__contains__` when a list
- is changed during comparing items. Patch by Dong-hee Na.
-
-- bpo-39434: :term:`floor division` of float operation now has a better
- performance. Also the message of :exc:`ZeroDivisionError` for this
- operation is updated. Patch by Dong-hee Na.
-
-- bpo-1635741: Port _codecs extension module to multiphase initialization
- (:pep:`489`).
-
-- bpo-1635741: Port _bz2 extension module to multiphase initialization
- (:pep:`489`).
-
-- bpo-1635741: Port _abc extension module to multiphase initialization
- (:pep:`489`).
-
-- bpo-39320: Replace two complex bytecodes for building dicts with two
- simpler ones. The new bytecodes ``DICT_MERGE`` and ``DICT_UPDATE`` have
- been added The old bytecodes ``BUILD_MAP_UNPACK`` and
- ``BUILD_MAP_UNPACK_WITH_CALL`` have been removed.
-
-- bpo-39219: Syntax errors raised in the tokenizer now always set correct
- "text" and "offset" attributes.
-
-- bpo-36051: Drop the GIL during large ``bytes.join`` operations. Patch by
- Bruce Merry.
-
-- bpo-38960: Fix DTrace build issues on FreeBSD. Patch by David Carlier.
-
-- bpo-37207: Speed up calls to ``range()`` by about 30%, by using the PEP
- 590 ``vectorcall`` calling convention. Patch by Mark Shannon.
-
-- bpo-36144: :class:`dict` (and :class:`collections.UserDict`) objects now
- support PEP 584's merge (``|``) and update (``|=``) operators. Patch by
- Brandt Bucher.
-
-- bpo-32856: Optimized the idiom for assignment a temporary variable in
- comprehensions. Now ``for y in [expr]`` in comprehensions is as fast as a
- simple assignment ``y = expr``.
-
-Library
--------
-
-- bpo-30566: Fix :exc:`IndexError` when trying to decode an invalid string
- with punycode codec.
-
-- bpo-39649: Remove obsolete check for `__args__` in
- bdb.Bdb.format_stack_entry.
-
-- bpo-39648: Expanded :func:`math.gcd` and :func:`math.lcm` to handle
- multiple arguments.
-
-- bpo-39681: Fix a regression where the C pickle module wouldn't allow
- unpickling from a file-like object that doesn't expose a readinto()
- method.
-
-- bpo-35950: Raise :exc:`io.UnsupportedOperation` in
- :meth:`io.BufferedReader.truncate` when it is called on a read-only
- :class:`io.BufferedReader` instance.
-
-- bpo-39479: Add :func:`math.lcm` function: least common multiple.
-
-- bpo-39674: Revert "Do not expose abstract collection classes in the
- collections module" change (bpo-25988). Aliases to ABC like
- collections.Mapping are kept in Python 3.9 to ease transition from Python
- 2.7, but will be removed in Python 3.10.
-
-- bpo-39104: Fix hanging ProcessPoolExcutor on ``shutdown(wait=False)`` when
- a task has failed pickling.
-
-- bpo-39627: Fixed TypedDict totality check for inherited keys.
-
-- bpo-39474: Fixed starting position of AST for expressions like ``(a)(b)``,
- ``(a)[b]`` and ``(a).b``.
-
-- bpo-21016: The :mod:`pydoc` and :mod:`trace` modules now use the
- :mod:`sysconfig` module to get the path to the Python standard library, to
- support uncommon installation path like ``/usr/lib64/python3.9/`` on
- Fedora. Patch by Jan Matějek.
-
-- bpo-39590: Collections.deque now holds strong references during
- deque.__contains__ and deque.count, fixing crashes.
-
-- bpo-39586: The distutils ``bdist_msi`` command is deprecated in Python
- 3.9, use ``bdist_wheel`` (wheel packages) instead.
-
-- bpo-39595: Improved performance of zipfile.Path for files with a large
- number of entries. Also improved performance and fixed minor issue as
- published with `importlib_metadata 1.5
- <https://importlib-metadata.readthedocs.io/en/latest/changelog%20(links).html#v1-5-0>`_.
-
-- bpo-39350: Fix regression in :class:`fractions.Fraction` if the numerator
- and/or the denominator is an :class:`int` subclass. The :func:`math.gcd`
- function is now used to normalize the *numerator* and *denominator*.
- :func:`math.gcd` always return a :class:`int` type. Previously, the GCD
- type depended on *numerator* and *denominator*.
-
-- bpo-39567: Added audit for :func:`os.walk`, :func:`os.fwalk`,
- :meth:`pathlib.Path.glob` and :meth:`pathlib.Path.rglob`.
-
-- bpo-39559: Remove unused, undocumented argument ``getters`` from
- :func:`uuid.getnode`
-
-- bpo-38149: :func:`sys.audit` is now called only once per call of
- :func:`glob.glob` and :func:`glob.iglob`.
-
-- bpo-39546: Fix a regression in :class:`~argparse.ArgumentParser` where
- ``allow_abbrev=False`` was ignored for long options that used a prefix
- character other than "-".
-
-- bpo-39450: Striped whitespace from docstring before returning it from
- :func:`unittest.case.shortDescription`.
-
-- bpo-12915: A new function ``resolve_name`` has been added to the
- ``pkgutil`` module. This resolves a string of the form ``'a.b.c.d'`` or
- ``'a.b:c.d'`` to an object. In the example, ``a.b`` is a package/module
- and ``c.d`` is an object within that package/module reached via recursive
- attribute access.
-
-- bpo-39353: The :func:`binascii.crc_hqx` function is no longer deprecated.
-
-- bpo-39493: Mark ``typing.IO.closed`` as a property
-
-- bpo-39491: Add :data:`typing.Annotated` and ``include_extras`` parameter
- to :func:`typing.get_type_hints` as part of :pep:`593`. Patch by Till
- Varoquaux, documentation by Till Varoquaux and Konstantin Kashin.
-
-- bpo-39485: Fix a bug in :func:`unittest.mock.create_autospec` that would
- complain about the wrong number of arguments for custom descriptors
- defined in an extension module returning functions.
-
-- bpo-38932: Mock fully resets child objects on reset_mock(). Patch by
- Vegard Stikbakke
-
-- bpo-39082: Allow AsyncMock to correctly patch static/class methods
-
-- bpo-39432: Implement PEP-489 algorithm for non-ascii "PyInit\_..." symbol
- names in distutils to make it export the correct init symbol also on
- Windows.
-
-- bpo-18819: Omit ``devmajor`` and ``devminor`` fields for non-device files
- in :mod:`tarfile` archives, enabling bit-for-bit compatibility with GNU
- ``tar(1)``.
-
-- bpo-39349: Added a new *cancel_futures* parameter to
- :meth:`concurrent.futures.Executor.shutdown` that cancels all pending
- futures which have not started running, instead of waiting for them to
- complete before shutting down the executor.
-
-- bpo-39274: ``bool(fraction.Fraction)`` now returns a boolean even if
- (numerator != 0) does not return a boolean (ex: numpy number).
-
-- bpo-34793: Remove support for ``with (await asyncio.lock):`` and ``with
- (yield from asyncio.lock):``. The same is correct for
- ``asyncio.Condition`` and ``asyncio.Semaphore``.
-
-- bpo-25597: Ensure, if ``wraps`` is supplied to
- :class:`unittest.mock.MagicMock`, it is used to calculate return values
- for the magic methods instead of using the default return values. Patch by
- Karthikeyan Singaravelan.
-
-- bpo-36350: `inspect.Signature.parameters` and
- `inspect.BoundArguments.arguments` are now dicts instead of OrderedDicts.
- Patch contributed by Rémi Lapeyre.
-
-- bpo-35727: Fix sys.exit() and sys.exit(None) exit code propagation when
- used in multiprocessing.Process.
-
-- bpo-32173: * Add `lazycache` function to `__all__`. * Use `dict.clear` to
- clear the cache. * Refactoring `getline` function and `checkcache`
- function.
-
-Documentation
--------------
-
-- bpo-17422: The language reference now specifies restrictions on class
- namespaces. Adapted from a patch by Ethan Furman.
-
-- bpo-39572: Updated documentation of ``total`` flag of ``TypedDict``.
-
-- bpo-39654: In pyclbr doc, update 'class' to 'module' where appropriate and
- add readmodule comment. Patch by Hakan Çelik.
-
-- bpo-39153: Clarify refcounting semantics for the following functions: -
- PyObject_SetItem - PyMapping_SetItemString - PyDict_SetItem -
- PyDict_SetItemString
-
-- bpo-39392: Explain that when filling with turtle, overlap regions may be
- left unfilled.
-
-- bpo-39369: Update mmap readline method description. The fact that the
- readline method does update the file position should not be ignored since
- this might give the impression for the programmer that it doesn't update
- it.
-
-- bpo-9056: Include subsection in TOC for PDF version of docs.
-
-Tests
------
-
-- bpo-38325: Skip tests on non-BMP characters of test_winconsoleio.
-
-- bpo-39502: Skip test_zipfile.test_add_file_after_2107() if
- :func:`time.localtime` fails with :exc:`OverflowError`. It is the case on
- AIX 6.1 for example.
-
-Build
------
-
-- bpo-39489: Remove ``COUNT_ALLOCS`` special build.
-
-Windows
--------
-
-- bpo-39553: Delete unused code related to SxS manifests.
-
-- bpo-39439: Honor the Python path when a virtualenv is active on Windows.
-
-- bpo-39393: Improve the error message when attempting to load a DLL with
- unresolved dependencies.
-
-- bpo-38883: :meth:`~pathlib.Path.home()` and
- :meth:`~pathlib.Path.expanduser()` on Windows now prefer
- :envvar:`USERPROFILE` and no longer use :envvar:`HOME`, which is not
- normally set for regular user accounts. This makes them again behave like
- :func:`os.path.expanduser`, which was changed to ignore :envvar:`HOME` in
- 3.8, see :issue:`36264`.
-
-- bpo-39185: The build.bat script has additional options for very-quiet
- output (-q) and very-verbose output (-vv)
-
-IDLE
-----
-
-- bpo-39663: Add tests for pyparse find_good_parse_start().
-
-- bpo-39600: In the font configuration window, remove duplicated font names.
-
-- bpo-30780: Add remaining configdialog tests for buttons and highlights and
- keys tabs.
-
-- bpo-39388: IDLE Settings Cancel button now cancels pending changes
-
-- bpo-38792: Close an IDLE shell calltip if a :exc:`KeyboardInterrupt` or
- shell restart occurs. Patch by Zackery Spytz.
-
-C API
------
-
-- bpo-35081: Move the ``bytes_methods.h`` header file to the internal C API
- as ``pycore_bytes_methods.h``: it only contains private symbols (prefixed
- by ``_Py``), except of the ``PyDoc_STRVAR_shared()`` macro.
-
-- bpo-35081: Move the ``dtoa.h`` header file to the internal C API as
- ``pycore_dtoa.h``: it only contains private functions (prefixed by
- ``_Py``). The :mod:`math` and :mod:`cmath` modules must now be compiled
- with the ``Py_BUILD_CORE`` macro defined.
-
-- bpo-39573: Add :c:func:`Py_SET_SIZE` function to set the size of an
- object.
-
-- bpo-39500: :c:func:`PyUnicode_IsIdentifier` does not call
- :c:func:`Py_FatalError` anymore if the string is not ready.
-
-- bpo-39573: Add :c:func:`Py_SET_TYPE` function to set the type of an
- object.
-
-- bpo-39573: Add a :c:func:`Py_SET_REFCNT` function to set the reference
- counter of an object.
-
-- bpo-39542: Convert :c:func:`PyType_HasFeature`, :c:func:`PyType_Check` and
- :c:func:`PyType_CheckExact` macros to static inline functions.
-
-- bpo-39542: In the limited C API, ``PyObject_INIT()`` and
- ``PyObject_INIT_VAR()`` are now defined as aliases to
- :c:func:`PyObject_Init` and :c:func:`PyObject_InitVar` to make their
- implementation opaque. It avoids to leak implementation details in the
- limited C API. Exclude the following functions from the limited C API:
- ``_Py_NewReference()``, ``_Py_ForgetReference()``,
- ``_PyTraceMalloc_NewReference()`` and ``_Py_GetRefTotal()``.
-
-- bpo-39542: Exclude trashcan mechanism from the limited C API: it requires
- access to PyTypeObject and PyThreadState structure fields, whereas these
- structures are opaque in the limited C API.
-
-- bpo-39511: The :c:func:`PyThreadState_Clear` function now calls the
- :c:member:`PyThreadState.on_delete` callback. Previously, that happened in
- :c:func:`PyThreadState_Delete`.
-
-- bpo-38076: Fix to clear the interpreter state only after clearing module
- globals to guarantee module state access from C Extensions during runtime
- destruction
-
-- bpo-39245: The Vectorcall API (PEP 590) was made public, adding the
- functions ``PyObject_Vectorcall``, ``PyObject_VectorcallMethod``,
- ``PyVectorcall_Function``, ``PyObject_CallOneArg``,
- ``PyObject_CallMethodNoArgs``, ``PyObject_CallMethodOneArg``,
- ``PyObject_FastCallDict``, and the flag ``Py_TPFLAGS_HAVE_VECTORCALL``.
-
-
-What's New in Python 3.9.0 alpha 3?
-===================================
-
-*Release date: 2020-01-24*
-
-Core and Builtins
------------------
-
-- bpo-39427: Document all possibilities for the ``-X`` options in the
- command line help section. Patch by Pablo Galindo.
-
-- bpo-39421: Fix possible crashes when operating with the functions in the
- :mod:`heapq` module and custom comparison operators.
-
-- bpo-39386: Prevent double awaiting of async iterator.
-
-- bpo-17005: Add :class:`functools.TopologicalSorter` to the
- :mod:`functools` module to offers functionality to perform topological
- sorting of graphs. Patch by Pablo Galindo, Tim Peters and Larry Hastings.
-
-- bpo-39320: Replace four complex bytecodes for building sequences with
- three simpler ones.
-
- The following four bytecodes have been removed:
-
- * BUILD_LIST_UNPACK
- * BUILD_TUPLE_UNPACK
- * BUILD_SET_UNPACK
- * BUILD_TUPLE_UNPACK_WITH_CALL
-
- The following three bytecodes have been added:
-
- * LIST_TO_TUPLE
- * LIST_EXTEND
- * SET_UPDATE
-
-- bpo-39336: Import loaders which publish immutable module objects can now
- publish immutable packages in addition to individual modules.
-
-- bpo-39322: Added a new function :func:`gc.is_finalized` to check if an
- object has been finalized by the garbage collector. Patch by Pablo
- Galindo.
-
-- bpo-39048: Improve the displayed error message when incorrect types are
- passed to ``async with`` statements by looking up the :meth:`__aenter__`
- special method before the :meth:`__aexit__` special method when entering
- an asynchronous context manager. Patch by Géry Ogam.
-
-- bpo-39235: Fix AST end location for lone generator expression in function
- call, e.g. f(i for i in a).
-
-- bpo-39209: Correctly handle multi-line tokens in interactive mode. Patch
- by Pablo Galindo.
-
-- bpo-1635741: Port _json extension module to multiphase initialization
- (:pep:`489`).
-
-- bpo-39216: Fix constant folding optimization for positional only arguments
- - by Anthony Sottile.
-
-- bpo-39215: Fix ``SystemError`` when nested function has annotation on
- positional-only argument - by Anthony Sottile.
-
-- bpo-39200: Correct the error message when calling the :func:`min` or
- :func:`max` with no arguments. Patch by Dong-hee Na.
-
-- bpo-39200: Correct the error message when trying to construct
- :class:`range` objects with no arguments. Patch by Pablo Galindo.
-
-- bpo-39166: Fix incorrect line execution reporting in trace functions when
- tracing the last iteration of asynchronous for loops. Patch by Pablo
- Galindo.
-
-- bpo-39114: Fix incorrect line execution reporting in trace functions when
- tracing exception handlers with name binding. Patch by Pablo Galindo.
-
-- bpo-39156: Split the COMPARE_OP bytecode instruction into four distinct
- instructions.
-
- * COMPARE_OP for rich comparisons
- * IS_OP for 'is' and 'is not' tests
- * CONTAINS_OP for 'in' and 'is not' tests
- * JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
-
- This improves the clarity of the interpreter and should provide a modest
- speedup.
-
-- bpo-38588: Fix possible crashes in dict and list when calling
- :c:func:`PyObject_RichCompareBool`.
-
-- bpo-13601: By default, ``sys.stderr`` is line-buffered now, even if
- ``stderr`` is redirected to a file. You can still make ``sys.stderr``
- unbuffered by passing the :option:`-u` command-line option or setting the
- :envvar:`PYTHONUNBUFFERED` environment variable.
-
- (Contributed by Jendrik Seipp in bpo-13601.)
-
-- bpo-38610: Fix possible crashes in several list methods by holding strong
- references to list elements when calling
- :c:func:`PyObject_RichCompareBool`.
-
-- bpo-32021: Include brotli .br encoding in mimetypes encodings_map
-
-Library
--------
-
-- bpo-39430: Fixed race condition in lazy imports in :mod:`tarfile`.
-
-- bpo-39413: The :func:`os.unsetenv` function is now also available on
- Windows.
-
-- bpo-39390: Fixed a regression with the `ignore` callback of
- :func:`shutil.copytree`. The argument types are now str and List[str]
- again.
-
-- bpo-39395: The :func:`os.putenv` and :func:`os.unsetenv` functions are now
- always available.
-
-- bpo-39406: If ``setenv()`` C function is available, :func:`os.putenv` is
- now implemented with ``setenv()`` instead of ``putenv()``, so Python
- doesn't have to handle the environment variable memory.
-
-- bpo-39396: Fix ``math.nextafter(-0.0, +0.0)`` on AIX 7.1.
-
-- bpo-29435: Allow :func:`tarfile.is_tarfile` to be used with file and
- file-like objects, like :func:`zipfile.is_zipfile`. Patch by William
- Woodruff.
-
-- bpo-39377: Removed ``encoding`` option from :func:`json.loads`. It has
- been deprecated since Python 3.1.
-
-- bpo-39389: Write accurate compression level metadata in :mod:`gzip`
- archives, rather than always signaling maximum compression.
-
-- bpo-39366: The previously deprecated ``xpath()`` and ``xgtitle()`` methods
- of :class:`nntplib.NNTP` have been removed.
-
-- bpo-39357: Remove the *buffering* parameter of :class:`bz2.BZ2File`. Since
- Python 3.0, it was ignored and using it was emitting
- :exc:`DeprecationWarning`. Pass an open file object, to control how the
- file is opened. The *compresslevel* parameter becomes keyword-only.
-
-- bpo-39353: Deprecate binhex4 and hexbin4 standards. Deprecate the
- :mod:`binhex` module and the following :mod:`binascii` functions:
- :func:`~binascii.b2a_hqx`, :func:`~binascii.a2b_hqx`,
- :func:`~binascii.rlecode_hqx`, :func:`~binascii.rledecode_hqx`,
- :func:`~binascii.crc_hqx`.
-
-- bpo-39351: Remove ``base64.encodestring()`` and ``base64.decodestring()``,
- aliases deprecated since Python 3.1: use :func:`base64.encodebytes` and
- :func:`base64.decodebytes` instead.
-
-- bpo-39350: Remove ``fractions.gcd()`` function, deprecated since Python
- 3.5 (:issue:`22486`): use :func:`math.gcd` instead.
-
-- bpo-39329: :class:`~smtplib.LMTP` constructor now has an optional
- *timeout* parameter. Patch by Dong-hee Na.
-
-- bpo-39313: Add a new ``exec_function`` option (*--exec-function* in the
- CLI) to ``RefactoringTool`` for making ``exec`` a function. Patch by
- Batuhan Taskaya.
-
-- bpo-39259: :class:`~ftplib.FTP_TLS` and :class:`~ftplib.FTP_TLS` now raise
- a :class:`ValueError` if the given timeout for their constructor is zero
- to prevent the creation of a non-blocking socket. Patch by Dong-hee Na.
-
-- bpo-39259: :class:`~smtplib.SMTP` and :class:`~smtplib.SMTP_SSL` now raise
- a :class:`ValueError` if the given timeout for their constructor is zero
- to prevent the creation of a non-blocking socket. Patch by Dong-hee Na.
-
-- bpo-39310: Add :func:`math.ulp`: return the value of the least significant
- bit of a float.
-
-- bpo-39297: Improved performance of importlib.metadata distribution
- discovery and resilients to inaccessible sys.path entries
- (importlib_metadata v1.4.0).
-
-- bpo-39259: :class:`~nntplib.NNTP` and :class:`~nntplib.NNTP_SSL` now raise
- a :class:`ValueError` if the given timeout for their constructor is zero
- to prevent the creation of a non-blocking socket. Patch by Dong-hee Na.
-
-- bpo-38901: When you specify prompt='.' or equivalently python -m venv
- --prompt . ... the basename of the current directory is used to set the
- created venv's prompt when it's activated.
-
-- bpo-39288: Add :func:`math.nextafter`: return the next floating-point
- value after *x* towards *y*.
-
-- bpo-39259: :class:`~poplib.POP3` and :class:`~poplib.POP3_SSL` now raise a
- :class:`ValueError` if the given timeout for their constructor is zero to
- prevent the creation of a non-blocking socket. Patch by Dong-hee Na.
-
-- bpo-39242: Updated the Gmane domain from news.gmane.org to news.gmane.io
- which is used for examples of :class:`~nntplib.NNTP` news reader server
- and nntplib tests.
-
-- bpo-35292: Proxy the `SimpleHTTPRequestHandler.guess_type` to
- `mimetypes.guess_type` so the `mimetypes.init` is called lazily to avoid
- unnecessary costs when :mod:`http.server` module is imported.
-
-- bpo-39239: The :meth:`select.epoll.unregister` method no longer ignores
- the :data:`~errno.EBADF` error.
-
-- bpo-38907: In http.server script, restore binding to IPv4 on Windows.
-
-- bpo-39152: Fix ttk.Scale.configure([name]) to return configuration tuple
- for name or all options. Giovanni Lombardo contributed part of the patch.
-
-- bpo-39198: If an exception were to be thrown in `Logger.isEnabledFor`
- (say, by asyncio timeouts or stopit) , the `logging` global lock may not
- be released appropriately, resulting in deadlock. This change wraps that
- block of code with `try...finally` to ensure the lock is released.
-
-- bpo-39191: Perform a check for running loop before starting a new task in
- ``loop.run_until_complete()`` to fail fast; it prevents the side effect of
- new task spawning before exception raising.
-
-- bpo-38871: Correctly parenthesize filter-based statements that contain
- lambda expressions in mod:`lib2to3`. Patch by Dong-hee Na.
-
-- bpo-39142: A change was made to logging.config.dictConfig to avoid
- converting instances of named tuples to ConvertingTuple. It's assumed that
- named tuples are too specialised to be treated like ordinary tuples; if a
- user of named tuples requires ConvertingTuple functionality, they will
- have to implement that themselves in their named tuple class.
-
-- bpo-39158: ast.literal_eval() now supports empty sets.
-
-- bpo-39129: Fix import path for ``asyncio.TimeoutError``
-
-- bpo-39057: :func:`urllib.request.proxy_bypass_environment` now ignores
- leading dots and no longer ignores a trailing newline.
-
-- bpo-39056: Fixed handling invalid warning category in the -W option. No
- longer import the re module if it is not needed.
-
-- bpo-39055: :func:`base64.b64decode` with ``validate=True`` raises now a
- binascii.Error if the input ends with a single ``\n``.
-
-- bpo-21600: Fix :func:`mock.patch.stopall` to stop active patches that were
- created with :func:`mock.patch.dict`.
-
-- bpo-39019: Implement dummy ``__class_getitem__`` for
- :class:`tempfile.SpooledTemporaryFile`.
-
-- bpo-39019: Implement dummy ``__class_getitem__`` for ``subprocess.Popen``,
- ``subprocess.CompletedProcess``
-
-- bpo-38914: Adjusted the wording of the warning issued by distutils'
- ``check`` command when the ``author`` and ``maintainer`` fields are
- supplied but no corresponding e-mail field (``author_email`` or
- ``maintainer_email``) is found. The wording now reflects the fact that
- these fields are suggested, but not required. Patch by Juergen Gmach.
-
-- bpo-38878: Fixed __subclasshook__ of :class:`os.PathLike` to return a
- correct result upon inheritance. Patch by Bar Harel.
-
-- bpo-38615: :class:`~imaplib.IMAP4` and :class:`~imaplib.IMAP4_SSL` now
- have an optional *timeout* parameter for their constructors. Also, the
- :meth:`~imaplib.IMAP4.open` method now has an optional *timeout* parameter
- with this change. The overridden methods of :class:`~imaplib.IMAP4_SSL`
- and :class:`~imaplib.IMAP4_stream` were applied to this change. Patch by
- Dong-hee Na.
-
-- bpo-35182: Fixed :func:`Popen.communicate` subsequent call crash when the
- child process has already closed any piped standard stream, but still
- continues to be running. Patch by Andriy Maletsky.
-
-- bpo-38630: On Unix, :meth:`subprocess.Popen.send_signal` now polls the
- process status. Polling reduces the risk of sending a signal to the wrong
- process if the process completed, the :attr:`subprocess.Popen.returncode`
- attribute is still ``None``, and the pid has been reassigned (recycled) to
- a new different process.
-
-- bpo-38536: Removes trailing space in formatted currency with
- `international=True` and a locale with symbol following value. E.g.
- `locale.currency(12.34, international=True)` returned `'12,34 EUR '`
- instead of `'12,34 EUR'`.
-
-- bpo-38473: Use signature from inner mock for autospecced methods attached
- with :func:`unittest.mock.attach_mock`. Patch by Karthikeyan Singaravelan.
-
-- bpo-38361: Fixed an issue where ``ident`` could include a leading path
- separator when :func:`syslog.openlog` was called without arguments.
-
-- bpo-38293: Add :func:`copy.copy` and :func:`copy.deepcopy` support to
- :func:`property` objects.
-
-- bpo-37958: Added the pstats.Stats.get_profile_dict() method to return the
- profile data as a StatsProfile instance.
-
-- bpo-28367: Termios magic constants for the following baud rates: -
- B500000 - B576000 - B921600 - B1000000 - B1152000 - B1500000 -
- B2000000 - B2500000 - B3000000 - B3500000 - B4000000 Patch by
- Andrey Smirnov
-
-Documentation
--------------
-
-- bpo-39381: Mention in docs that :func:`asyncio.get_event_loop` implicitly
- creates new event loop only if called from the main thread.
-
-- bpo-38918: Add an entry for ``__module__`` in the "function" & "method"
- sections of the `inspect docs types and members table
- <https://docs.python.org/3/library/inspect.html#types-and-members>`_
-
-- bpo-3530: In the :mod:`ast` module documentation, fix a misleading
- ``NodeTransformer`` example and add advice on when to use the
- ``fix_missing_locations`` function.
-
-Build
------
-
-- bpo-39395: On non-Windows platforms, the :c:func:`setenv` and
- :c:func:`unsetenv` functions are now required to build Python.
-
-- bpo-39160: Updated the documentation in `./configure --help` to show
- default values, reference documentation where required and add additional
- explanation where needed.
-
-- bpo-39144: The ctags and etags build targets both include Modules/_ctypes
- and Python standard library source files.
-
-IDLE
-----
-
-- bpo-39050: Make IDLE Settings dialog Help button work again.
-
-- bpo-34118: Tag memoryview, range, and tuple as classes, the same as list,
- etcetera, in the library manual built-in functions list.
-
-- bpo-32989: Add tests for editor newline_and_indent_event method. Remove
- dead code from pyparse find_good_parse_start method.
-
-C API
------
-
-- bpo-39372: Clean header files of interfaces defined but with no
- implementation. The public API symbols being removed are:
- ``_PyBytes_InsertThousandsGroupingLocale``,
- ``_PyBytes_InsertThousandsGrouping``, ``_Py_InitializeFromArgs``,
- ``_Py_InitializeFromWideArgs``, ``_PyFloat_Repr``, ``_PyFloat_Digits``,
- ``_PyFloat_DigitsInit``, ``PyFrame_ExtendStack``,
- ``_PyAIterWrapper_Type``, ``PyNullImporter_Type``, ``PyCmpWrapper_Type``,
- ``PySortWrapper_Type``, ``PyNoArgsFunction``.
-
-- bpo-39164: Add a private ``_PyErr_GetExcInfo()`` function to retrieve
- exception information of the specified Python thread state.
-
-
-What's New in Python 3.9.0 alpha 2?
-===================================
-
-*Release date: 2019-12-18*
-
-Security
---------
-
-- bpo-38945: Newline characters have been escaped when performing uu
- encoding to prevent them from overflowing into to content section of the
- encoded file. This prevents malicious or accidental modification of data
- during the decoding process.
-
-- bpo-37228: Due to significant security concerns, the *reuse_address*
- parameter of :meth:`asyncio.loop.create_datagram_endpoint` is no longer
- supported. This is because of the behavior of ``SO_REUSEADDR`` in UDP. For
- more details, see the documentation for
- ``loop.create_datagram_endpoint()``. (Contributed by Kyle Stanley, Antoine
- Pitrou, and Yury Selivanov in :issue:`37228`.)
-
-- bpo-38804: Fixes a ReDoS vulnerability in :mod:`http.cookiejar`. Patch by
- Ben Caller.
-
-Core and Builtins
------------------
-
-- bpo-39028: Slightly improve the speed of keyword argument parsing with
- many kwargs by strengthening the assumption that kwargs are interned
- strings.
-
-- bpo-39080: Fix the value of *end_col_offset* for Starred Expression AST
- nodes when they are among the elements in the *args* attribute of Call AST
- nodes.
-
-- bpo-39031: When parsing an "elif" node, lineno and col_offset of the node
- now point to the "elif" keyword and not to its condition, making it
- consistent with the "if" node. Patch by Lysandros Nikolaou.
-
-- bpo-20443: In Python 3.9.0a1, sys.argv[0] was made an absolute path if a
- filename was specified on the command line. Revert this change, since most
- users expect sys.argv to be unmodified.
-
-- bpo-39008: :c:func:`PySys_Audit` now requires ``Py_ssize_t`` to be used
- for size arguments in the format string, regardless of whether
- ``PY_SSIZE_T_CLEAN`` was defined at include time.
-
-- bpo-38673: In REPL mode, don't switch to PS2 if the line starts with
- comment or whitespace. Based on work by Batuhan Taşkaya.
-
-- bpo-38922: Calling ``replace`` on a code object now raises the
- ``code.__new__`` audit event.
-
-- bpo-38920: Add audit hooks for when :func:`sys.excepthook` and
- :func:`sys.unraisablehook` are invoked.
-
-- bpo-38892: Improve documentation for audit events table and functions.
-
-- bpo-38852: Set the thread stack size to 8 Mb for debug builds on android
- platforms.
-
-- bpo-38858: Each Python subinterpreter now has its own "small integer
- singletons": numbers in [-5; 257] range. It is no longer possible to
- change the number of small integers at build time by overriding
- ``NSMALLNEGINTS`` and ``NSMALLPOSINTS`` macros: macros should now be
- modified manually in ``pycore_pystate.h`` header file.
-
-- bpo-36854: The garbage collector state becomes per interpreter
- (``PyInterpreterState.gc``), rather than being global
- (``_PyRuntimeState.gc``).
-
-- bpo-38835: The ``PyFPE_START_PROTECT()`` and ``PyFPE_END_PROTECT()``
- macros are empty: they have been doing nothing for the last year, so stop
- using them.
-
-- bpo-38328: Sped up the creation time of constant :class:`list` and
- :class:`set` displays. Patch by Brandt Bucher.
-
-- bpo-38707: ``MainThread.native_id`` is now correctly reset in child
- processes spawned using :class:`multiprocessing.Process`, instead of
- retaining the parent's value.
-
-- bpo-38629: Added ``__floor__`` and ``__ceil__`` methods to float object.
- Patch by Batuhan Taşkaya.
-
-- bpo-27145: int + int and int - int operators can now return small integer
- singletons. Patch by hongweipeng.
-
-- bpo-38021: Provide a platform tag for AIX that is sufficient for PEP425
- binary distribution identification. Patch by Michael Felt.
-
-- bpo-35409: Ignore GeneratorExit exceptions when throwing an exception into
- the aclose coroutine of an asynchronous generator.
-
-- bpo-33387: Removed WITH_CLEANUP_START, WITH_CLEANUP_FINISH, BEGIN_FINALLY,
- END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Replaced with RERAISE
- and WITH_EXCEPT_START bytecodes. The compiler now generates different code
- for exceptional and non-exceptional branches for 'with' and 'try-except'
- statements. For 'try-finally' statements the 'finally' block is replicated
- for each exit from the 'try' body.
-
-Library
--------
-
-- bpo-39033: Fix :exc:`NameError` in :mod:`zipimport`. Patch by Karthikeyan
- Singaravelan.
-
-- bpo-39022: Update importlib.metadata to include improvements from
- importlib_metadata 1.3 including better serialization of EntryPoints and
- improved documentation for custom finders.
-
-- bpo-39006: Fix asyncio when the ssl module is missing: only check for
- ssl.SSLSocket instance if the ssl module is available.
-
-- bpo-38708: Fix a potential IndexError in email parser when parsing an
- empty msg-id.
-
-- bpo-38698: Add a new ``InvalidMessageID`` token to email parser to
- represent invalid Message-ID headers. Also, add defects when there is
- remaining value after parsing the header.
-
-- bpo-38994: Implement ``__class_getitem__`` for ``os.PathLike``,
- ``pathlib.Path``.
-
-- bpo-38979: Return class from ``ContextVar.__class_getitem__`` to simplify
- subclassing.
-
-- bpo-38978: Implement ``__class_getitem__`` on asyncio objects (Future,
- Task, Queue). Patch by Batuhan Taskaya.
-
-- bpo-38916: :class:`array.array`: Remove ``tostring()`` and
- ``fromstring()`` methods. They were aliases to ``tobytes()`` and
- ``frombytes()``, deprecated since Python 3.2.
-
-- bpo-38986: Make repr of C accelerated TaskWakeupMethWrapper the same as of
- pure Python version.
-
-- bpo-38982: Fix asyncio ``PidfdChildWatcher``: handle ``waitpid()`` error.
- If ``waitpid()`` is called elsewhere, ``waitpid()`` call fails with
- :exc:`ChildProcessError`: use return code 255 in this case, and log a
- warning. It ensures that the pidfd file descriptor is closed if this error
- occurs.
-
-- bpo-38529: Drop too noisy asyncio warning about deletion of a stream
- without explicit ``.close()`` call.
-
-- bpo-27413: Added ability to pass through ``ensure_ascii`` options to
- json.dumps in the ``json.tool`` command-line interface.
-
-- bpo-38634: The :mod:`readline` module now detects if Python is linked to
- libedit at runtime on all platforms. Previously, the check was only done
- on macOS.
-
-- bpo-33684: Fix ``json.tool`` failed to read a JSON file with non-ASCII
- characters when locale encoding is not UTF-8.
-
-- bpo-38698: Prevent UnboundLocalError to pop up in parse_message_id.
-
- parse_message_id() was improperly using a token defined inside an
- exception handler, which was raising `UnboundLocalError` on parsing an
- invalid value. Patch by Claudiu Popa.
-
-- bpo-38927: Use ``python -m pip`` instead of ``pip`` to upgrade
- dependencies in venv.
-
-- bpo-26730: Fix ``SpooledTemporaryFile.rollover()`` might corrupt the file
- when it is in text mode. Patch by Serhiy Storchaka.
-
-- bpo-38881: random.choices() now raises a ValueError when all the weights
- are zero.
-
-- bpo-38876: Raise pickle.UnpicklingError when loading an item from memo for
- invalid input.
-
- The previous code was raising a `KeyError` for both the Python and C
- implementation. This was caused by the specified index of an invalid input
- which did not exist in the memo structure, where the pickle stores what
- objects it has seen. The malformed input would have caused either a
- `BINGET` or `LONG_BINGET` load from the memo, leading to a `KeyError` as
- the determined index was bogus. Patch by Claudiu Popa
-
-- bpo-38688: Calling func:`shutil.copytree` to copy a directory tree from
- one directory to another subdirectory resulted in an endless loop and a
- RecursionError. A fix was added to consume an iterator and create the list
- of the entries to be copied, avoiding the recursion for newly created
- directories. Patch by Bruno P. Kinoshita.
-
-- bpo-38863: Improve :func:`is_cgi` function in :mod:`http.server`, which
- enables processing the case that cgi directory is a child of another
- directory other than root.
-
-- bpo-37838: :meth:`typing.get_type_hints` properly handles functions
- decorated with :meth:`functools.wraps`.
-
-- bpo-38870: Expose :func:`ast.unparse` as a function of the :mod:`ast`
- module that can be used to unparse an :class:`ast.AST` object and produce
- a string with code that would produce an equivalent :class:`ast.AST`
- object when parsed. Patch by Pablo Galindo and Batuhan Taskaya.
-
-- bpo-38859: AsyncMock now returns StopAsyncIteration on the exhaustion of a
- side_effects iterable. Since PEP-479 its Impossible to raise a
- StopIteration exception from a coroutine.
-
-- bpo-38857: AsyncMock fix for return values that are awaitable types. This
- also covers side_effect iterable values that happened to be awaitable, and
- wraps callables that return an awaitable type. Before these awaitables
- were being awaited instead of being returned as is.
-
-- bpo-38834: :class:`typing.TypedDict` subclasses now track which keys are
- optional using the ``__required_keys__`` and ``__optional_keys__``
- attributes, to enable runtime validation by downstream projects. Patch by
- Zac Hatfield-Dodds.
-
-- bpo-38821: Fix unhandled exceptions in :mod:`argparse` when
- internationalizing error messages for arguments with ``nargs`` set to
- special (non-integer) values. Patch by Federico Bond.
-
-- bpo-38820: Make Python compatible with OpenSSL 3.0.0.
- :func:`ssl.SSLSocket.getpeercert` no longer returns IPv6 addresses with a
- trailing new line.
-
-- bpo-38811: Fix an unhandled exception in :mod:`pathlib` when
- :meth:`os.link` is missing. Patch by Toke Høiland-Jørgensen.
-
-- bpo-38686: Added support for multiple ``qop`` values in
- :class:`urllib.request.AbstractDigestAuthHandler`.
-
-- bpo-38712: Add the Linux-specific :func:`signal.pidfd_send_signal`
- function, which allows sending a signal to a process identified by a file
- descriptor rather than a pid.
-
-- bpo-38348: Add ``-i`` and ``--indent`` (indentation level), and
- ``--no-type-comments`` (type comments) command line options to ast parsing
- tool.
-
-- bpo-37523: Change :class:`zipfile.ZipExtFile` to raise ``ValueError`` when
- trying to access the underlying file object after it has been closed. This
- new behavior is consistent with how accessing closed files is handled in
- other parts of Python.
-
-- bpo-38045: Improve the performance of :func:`enum._decompose` in
- :mod:`enum`. Patch by hongweipeng.
-
-- bpo-36820: Break cycle generated when saving an exception in socket.py,
- codeop.py and dyld.py as they keep alive not only the exception but user
- objects through the ``__traceback__`` attribute. Patch by Mario Corchero.
-
-- bpo-36406: Handle namespace packages in :mod:`doctest`. Patch by
- Karthikeyan Singaravelan.
-
-- bpo-34776: Fix dataclasses to support forward references in type
- annotations
-
-- bpo-20928: ElementTree supports recursive XInclude processing. Patch by
- Stefan Behnel.
-
-- bpo-29636: Add whitespace options for formatting JSON with the
- ``json.tool`` CLI. The following mutually exclusive options are now
- supported: ``--indent`` for setting the indent level in spaces; ``--tab``
- for indenting with tabs; ``--no-indent`` for suppressing newlines; and
- ``--compact`` for suppressing all whitespace. The default behavior remains
- the same as ``--indent=4``.
-
-Documentation
--------------
-
-- bpo-38928: Correct when venv's ``upgrade_dependencies()`` and
- ``--upgrade-deps`` are added.
-
-- bpo-38899: Update documentation to state that to activate virtual
- environments under fish one should use `source`, not `.` as documented at
- https://fishshell.com/docs/current/commands.html#source.
-
-- bpo-22377: Improves documentation of the values that
- :meth:`datetime.datetime.strptime` accepts for ``%Z``. Patch by Karl
- Dubost.
-
-Tests
------
-
-- bpo-38546: Fix test_ressources_gced_in_workers() of
- test_concurrent_futures: explicitly stop the manager to prevent leaking a
- child process running in the background after the test completes.
-
-- bpo-38546: Multiprocessing and concurrent.futures tests now stop the
- resource tracker process when tests complete.
-
-- bpo-38614: Replace hardcoded timeout constants in tests with new
- :mod:`test.support` constants: :data:`~test.support.LOOPBACK_TIMEOUT`,
- :data:`~test.support.INTERNET_TIMEOUT`,
- :data:`~test.support.SHORT_TIMEOUT` and
- :data:`~test.support.LONG_TIMEOUT`. It becomes easier to adjust these four
- timeout constants for all tests at once, rather than having to adjust
- every single test file.
-
-- bpo-38547: Fix test_pty: if the process is the session leader, closing the
- master file descriptor raises a SIGHUP signal: simply ignore SIGHUP when
- running the tests.
-
-- bpo-38992: Fix a test for :func:`math.fsum` that was failing due to
- constant folding.
-
-- bpo-38991: :mod:`test.support`:
- :func:`~test.support.run_python_until_end`,
- :func:`~test.support.assert_python_ok` and
- :func:`~test.support.assert_python_failure` functions no longer strip
- whitespaces from stderr. Remove ``test.support.strip_python_stderr()``
- function.
-
-- bpo-38965: Fix test_faulthandler on GCC 10. Use the "volatile" keyword in
- ``faulthandler._stack_overflow()`` to prevent tail call optimization on
- any compiler, rather than relying on compiler specific pragma.
-
-- bpo-38875: test_capi: trashcan tests now require the test "cpu" resource.
-
-- bpo-38841: Skip asyncio test_create_datagram_endpoint_existing_sock_unix
- on platforms lacking a functional bind() for named unix domain sockets.
-
-- bpo-38692: Skip the test_posix.test_pidfd_open() test if
- ``os.pidfd_open()`` fails with a :exc:`PermissionError`. This situation
- can happen in a Linux sandbox using a syscall whitelist which doesn't
- allow the ``pidfd_open()`` syscall yet.
-
-- bpo-38839: Fix some unused functions in tests. Patch by Adam Johnson.
-
-- bpo-38669: Raise :exc:`TypeError` when passing target as a string with
- :meth:`unittest.mock.patch.object`.
-
-- bpo-37957: test.regrtest now can receive a list of test patterns to ignore
- (using the -i/--ignore argument) or a file with a list of patterns to
- ignore (using the --ignore-file argument). Patch by Pablo Galindo.
-
-Build
------
-
-- bpo-37404: :mod:`asyncio` now raises :exc:`TyperError` when calling
- incompatible methods with an :class:`ssl.SSLSocket` socket. Patch by Ido
- Michael.
-
-- bpo-36500: Added an optional "regen" project to the Visual Studio solution
- that will regenerate all grammar, tokens, and opcodes.
-
-Windows
--------
-
-- bpo-39007: Add auditing events to functions in :mod:`winreg`.
-
-- bpo-33125: Add support for building and releasing Windows ARM64 packages.
-
-macOS
------
-
-- bpo-37931: Fixed a crash on OSX dynamic builds that occurred when
- re-initializing the posix module after a Py_Finalize if the environment
- had changed since the previous `import posix`. Patch by Benoît Hudson.
-
-IDLE
-----
-
-- bpo-38944: Escape key now closes IDLE completion windows. Patch by Johnny
- Najera.
-
-- bpo-38943: Fix IDLE autocomplete windows not always appearing on some
- systems. Patch by Johnny Najera.
-
-- bpo-38862: 'Strip Trailing Whitespace' on the Format menu removes extra
- newlines at the end of non-shell files.
-
-- bpo-38636: Fix IDLE Format menu tab toggle and file indent width. These
- functions (default shortcuts Alt-T and Alt-U) were mistakenly disabled in
- 3.7.5 and 3.8.0.
-
-C API
------
-
-- bpo-38896: Remove ``PyUnicode_ClearFreeList()`` function: the Unicode free
- list has been removed in Python 3.3.
-
-- bpo-37340: Remove ``PyMethod_ClearFreeList()`` and
- ``PyCFunction_ClearFreeList()`` functions: the free lists of bound method
- objects have been removed.
-
-- bpo-38835: Exclude ``PyFPE_START_PROTECT()`` and ``PyFPE_END_PROTECT()``
- macros of ``pyfpe.h`` from ``Py_LIMITED_API`` (stable API).
-
-
-What's New in Python 3.9.0 alpha 1?
-===================================
-
-*Release date: 2019-11-19*
-
-Security
---------
-
-- bpo-38722: :mod:`runpy` now uses :meth:`io.open_code` to open code files.
- Patch by Jason Killen.
-
-- bpo-38622: Add additional audit events for the :mod:`ctypes` module.
-
-- bpo-38418: Fixes audit event for :func:`os.system` to be named
- ``os.system``.
-
-- bpo-38243: Escape the server title of
- :class:`xmlrpc.server.DocXMLRPCServer` when rendering the document page as
- HTML. (Contributed by Dong-hee Na in :issue:`38243`.)
-
-- bpo-38174: Update vendorized expat library version to 2.2.8, which
- resolves CVE-2019-15903.
-
-- bpo-37764: Fixes email._header_value_parser.get_unstructured going into an
- infinite loop for a specific case in which the email header does not have
- trailing whitespace, and the case in which it contains an invalid encoded
- word. Patch by Ashwin Ramaswami.
-
-- bpo-37461: Fix an infinite loop when parsing specially crafted email
- headers. Patch by Abhilash Raj.
-
-- bpo-37363: Adds audit events for the range of supported run commands (see
- :ref:`using-on-general`).
-
-- bpo-37463: ssl.match_hostname() no longer accepts IPv4 addresses with
- additional text after the address and only quad-dotted notation without
- trailing whitespaces. Some inet_aton() implementations ignore whitespace
- and all data after whitespace, e.g. '127.0.0.1 whatever'.
-
-- bpo-37363: Adds audit events for :mod:`ensurepip`, :mod:`ftplib`,
- :mod:`glob`, :mod:`imaplib`, :mod:`nntplib`, :mod:`pdb`, :mod:`poplib`,
- :mod:`shutil`, :mod:`smtplib`, :mod:`sqlite3`, :mod:`subprocess`,
- :mod:`telnetlib`, :mod:`tempfile` and :mod:`webbrowser`, as well as
- :func:`os.listdir`, :func:`os.scandir` and :func:`breakpoint`.
-
-- bpo-37364: :func:`io.open_code` is now used when reading :file:`.pth`
- files.
-
-- bpo-34631: Updated OpenSSL to 1.1.1c in Windows installer
-
-- bpo-34155: Fix parsing of invalid email addresses with more than one ``@``
- (e.g. a@b@c.com.) to not return the part before 2nd ``@`` as valid email
- address. Patch by maxking & jpic.
-
-Core and Builtins
------------------
-
-- bpo-38631: Replace ``Py_FatalError()`` call with a regular
- :exc:`RuntimeError` exception in :meth:`float.__getformat__`.
-
-- bpo-38639: Optimized :func:`math.floor()`, :func:`math.ceil()` and
- :func:`math.trunc()` for floats.
-
-- bpo-38640: Fixed a bug in the compiler that was causing to raise in the
- presence of break statements and continue statements inside always false
- while loops. Patch by Pablo Galindo.
-
-- bpo-38613: Optimized some set operations (e.g. ``|``, ``^``, and ``-``) of
- ``dict_keys``. ``d.keys() | other`` was slower than ``set(d) | other`` but
- they are almost same performance for now.
-
-- bpo-28029: ``"".replace("", s, n)`` now returns ``s`` instead of an empty
- string for all non-zero ``n``. There are similar changes for
- :class:`bytes` and :class:`bytearray` objects.
-
-- bpo-38535: Fixed line numbers and column offsets for AST nodes for calls
- without arguments in decorators.
-
-- bpo-38525: Fix a segmentation fault when using reverse iterators of empty
- ``dict`` objects. Patch by Dong-hee Na and Inada Naoki.
-
-- bpo-38465: :class:`bytearray`, :class:`~array.array` and
- :class:`~mmap.mmap` objects allow now to export more than ``2**31``
- buffers at a time.
-
-- bpo-38469: Fixed a bug where the scope of named expressions was not being
- resolved correctly in the presence of the *global* keyword. Patch by Pablo
- Galindo.
-
-- bpo-38437: Activate the ``GC_DEBUG`` macro for debug builds of the
- interpreter (when ``Py_DEBUG`` is set). Patch by Pablo Galindo.
-
-- bpo-38379: When the garbage collector makes a collection in which some
- objects resurrect (they are reachable from outside the isolated cycles
- after the finalizers have been executed), do not block the collection of
- all objects that are still unreachable. Patch by Pablo Galindo and Tim
- Peters.
-
-- bpo-38379: When cyclic garbage collection (gc) runs finalizers that
- resurrect unreachable objects, the current gc run ends, without collecting
- any cyclic trash. However, the statistics reported by ``collect()`` and
- ``get_stats()`` claimed that all cyclic trash found was collected, and
- that the resurrected objects were collected. Changed the stats to report
- that none were collected.
-
-- bpo-38392: In debug mode, :c:func:`PyObject_GC_Track` now calls
- ``tp_traverse()`` of the object type to ensure that the object is valid:
- test that objects visited by ``tp_traverse()`` are valid.
-
-- bpo-38210: Remove unnecessary intersection and update set operation in
- dictview with empty set. (Contributed by Dong-hee Na in :issue:`38210`.)
-
-- bpo-38402: Check the error from the system's underlying ``crypt`` or
- ``crypt_r``.
-
-- bpo-37474: On FreeBSD, Python no longer calls ``fedisableexcept()`` at
- startup to control the floating point control mode. The call became
- useless since FreeBSD 6: it became the default mode.
-
-- bpo-38006: Fix a bug due to the interaction of weakrefs and the cyclic
- garbage collector. We must clear any weakrefs in garbage in order to
- prevent their callbacks from executing and causing a crash.
-
-- bpo-38317: Fix warnings options priority: ``PyConfig.warnoptions`` has the
- highest priority, as stated in the :pep:`587`.
-
-- bpo-38310: Predict ``BUILD_MAP_UNPACK_WITH_CALL`` -> ``CALL_FUNCTION_EX``
- opcode pairs in the main interpreter loop. Patch by Brandt Bucher.
-
-- bpo-36871: Improve error handling for the assert_has_calls and
- assert_has_awaits methods of mocks. Fixed a bug where any errors
- encountered while binding the expected calls to the mock's spec were
- silently swallowed, leading to misleading error output.
-
-- bpo-11410: Better control over symbol visibility is provided through use
- of the visibility attributes available in gcc >= 4.0, provided in a
- uniform way across POSIX and Windows. The POSIX build files have been
- updated to compile with -fvisibility=hidden, minimising exported symbols.
-
-- bpo-38219: Optimized the :class:`dict` constructor and the
- :meth:`~dict.update` method for the case when the argument is a dict.
-
-- bpo-38236: Python now dumps path configuration if it fails to import the
- Python codecs of the filesystem and stdio encodings.
-
-- bpo-38013: Allow to call ``async_generator_athrow().throw(...)`` even for
- non-started async generator helper. It fixes annoying warning at the end
- of :func:`asyncio.run` call.
-
-- bpo-38124: Fix an off-by-one error in PyState_AddModule that could cause
- out-of-bounds memory access.
-
-- bpo-38116: The select module is now PEP-384 compliant and no longer has
- static state
-
-- bpo-38113: ast module updated to PEP-384 and all statics removed
-
-- bpo-38076: The struct module is now PEP-384 compatible
-
-- bpo-38075: The random module is now PEP-384 compatible
-
-- bpo-38074: zlib module made PEP-384 compatible
-
-- bpo-38073: Make pwd extension module PEP-384 compatible
-
-- bpo-38072: grp module made PEP-384 compatible
-
-- bpo-38069: Make _posixsubprocess PEP-384 compatible
-
-- bpo-38071: Make termios extension module PEP-384 compatible
-
-- bpo-38005: Fixed comparing and creating of InterpreterID and ChannelID.
-
-- bpo-36946: Fix possible signed integer overflow when handling slices.
- Patch by hongweipeng.
-
-- bpo-37994: Fixed silencing arbitrary errors if an attribute lookup fails
- in several sites. Only AttributeError should be silenced.
-
-- bpo-8425: Optimize set difference_update for the case when the other set
- is much larger than the base set. (Suggested by Evgeny Kapun with code
- contributed by Michele Orrù).
-
-- bpo-37966: The implementation of :func:`~unicodedata.is_normalized` has
- been greatly sped up on strings that aren't normalized, by implementing
- the full normalization-quick-check algorithm from the Unicode standard.
-
-- bpo-37947: Adjust correctly the recursion level in the symtable generation
- for named expressions. Patch by Pablo Galindo.
-
-- bpo-37812: The ``CHECK_SMALL_INT`` macro used inside
- :file:`Object/longobject.c` has been replaced with an explicit ``return``
- at each call site.
-
-- bpo-37751: Fix :func:`codecs.lookup` to normalize the encoding name the
- same way than :func:`encodings.normalize_encoding`, except that
- :func:`codecs.lookup` also converts the name to lower case.
-
-- bpo-37830: Fixed compilation of :keyword:`break` and :keyword:`continue`
- in the :keyword:`finally` block when the corresponding :keyword:`try`
- block contains :keyword:`return` with a non-constant value.
-
-- bpo-20490: Improve import error message for partially initialized module
- on circular ``from`` imports - by Anthony Sottile.
-
-- bpo-37840: Fix handling of negative indices in
- :c:member:`~PySequenceMethods.sq_item` of :class:`bytearray`. Patch by
- Sergey Fedoseev.
-
-- bpo-37802: Slightly improve performance of
- :c:func:`PyLong_FromUnsignedLong`, :c:func:`PyLong_FromUnsignedLongLong`
- and :c:func:`PyLong_FromSize_t`. Patch by Sergey Fedoseev.
-
-- bpo-37409: Ensure explicit relative imports from interactive sessions and
- scripts (having no parent package) always raise ImportError, rather than
- treating the current module as the package. Patch by Ben Lewis.
-
-- bpo-32912: Reverted :issue:`32912`: emitting :exc:`SyntaxWarning` instead
- of :exc:`DeprecationWarning` for invalid escape sequences in string and
- bytes literals.
-
-- bpo-37757: :pep:`572`: As described in the PEP, assignment expressions now
- raise :exc:`SyntaxError` when their interaction with comprehension scoping
- results in an ambiguous target scope.
-
- The ``TargetScopeError`` subclass originally proposed by the PEP has been
- removed in favour of just raising regular syntax errors for the disallowed
- cases.
-
-- bpo-36279: Fix potential use of uninitialized memory in :func:`os.wait3`.
-
-- bpo-36311: Decoding bytes objects larger than 2GiB is faster and no longer
- fails when a multibyte characters spans a chunk boundary.
-
-- bpo-34880: The :keyword:`assert` statement now works properly if the
- :exc:`AssertionError` exception is being shadowed. Patch by Zackery Spytz.
-
-- bpo-37340: Removed object cache (``free_list``) for bound method objects.
- Temporary bound method objects are less used than before thanks to the
- ``LOAD_METHOD`` opcode and the ``_PyObject_VectorcallMethod`` C API.
-
-- bpo-37648: Fixed minor inconsistency in :meth:`list.__contains__`,
- :meth:`tuple.__contains__` and a few other places. The collection's item
- is now always at the left and the needle is on the right of ``==``.
-
-- bpo-37444: Update differing exception between :meth:`builtins.__import__`
- and :meth:`importlib.__import__`.
-
-- bpo-37619: When adding a wrapper descriptor from one class to a different
- class (for example, setting ``__add__ = str.__add__`` on an ``int``
- subclass), an exception is correctly raised when the operator is called.
-
-- bpo-37593: Swap the positions of the *posonlyargs* and *args* parameters
- in the constructor of :class:`ast.parameters` nodes.
-
-- bpo-37543: Optimized pymalloc for non PGO build.
-
-- bpo-37537: Compute allocated pymalloc blocks inside
- _Py_GetAllocatedBlocks(). This slows down _Py_GetAllocatedBlocks() but
- gives a small speedup to _PyObject_Malloc() and _PyObject_Free().
-
-- bpo-37467: Fix :func:`sys.excepthook` and :c:func:`PyErr_Display` if a
- filename is a bytes string. For example, for a SyntaxError exception where
- the filename attribute is a bytes string.
-
-- bpo-37433: Fix ``SyntaxError`` indicator printing too many spaces for
- multi-line strings - by Anthony Sottile.
-
-- bpo-37417: :meth:`bytearray.extend` now correctly handles errors that
- arise during iteration. Patch by Brandt Bucher.
-
-- bpo-37414: The undocumented ``sys.callstats()`` function has been removed.
- Since Python 3.7, it was deprecated and always returned ``None``. It
- required a special build option ``CALL_PROFILE`` which was already removed
- in Python 3.7.
-
-- bpo-37392: Remove ``sys.getcheckinterval()`` and
- ``sys.setcheckinterval()`` functions. They were deprecated since Python
- 3.2. Use :func:`sys.getswitchinterval` and :func:`sys.setswitchinterval`
- instead. Remove also ``check_interval`` field of the
- ``PyInterpreterState`` structure.
-
-- bpo-37388: In development mode and in debug build, *encoding* and *errors*
- arguments are now checked on string encoding and decoding operations.
- Examples: :func:`open`, :meth:`str.encode` and :meth:`bytes.decode`.
-
- By default, for best performances, the *errors* argument is only checked
- at the first encoding/decoding error, and the *encoding* argument is
- sometimes ignored for empty strings.
-
-- bpo-37348: Optimized decoding short ASCII string with UTF-8 and ascii
- codecs. ``b"foo".decode()`` is about 15% faster. Patch by Inada Naoki.
-
-- bpo-24214: Improved support of the surrogatepass error handler in the
- UTF-8 and UTF-16 incremental decoders.
-
-- bpo-37330: :func:`open`, :func:`io.open`, :func:`codecs.open` and
- :class:`fileinput.FileInput` no longer accept ``'U'`` ("universal
- newline") in the file mode. This flag was deprecated since Python 3.3.
-
-- bpo-35224: Reverse evaluation order of key: value in dict comprehensions
- as proposed in PEP 572. I.e. in ``{k: v for ...}``, ``k`` will be
- evaluated before ``v``.
-
-- bpo-37316: Fix the :c:func:`PySys_Audit` call in :class:`mmap.mmap`.
-
-- bpo-37300: Remove an unnecessary Py_XINCREF in classobject.c.
-
-- bpo-37269: Fix a bug in the peephole optimizer that was not treating
- correctly constant conditions with binary operators. Patch by Pablo
- Galindo.
-
-- bpo-20443: Python now gets the absolute path of the script filename
- specified on the command line (ex: "python3 script.py"): the __file__
- attribute of the __main__ module and sys.path[0] become an absolute path,
- rather than a relative path.
-
-- bpo-37257: Python's small object allocator (``obmalloc.c``) now allows (no
- more than) one empty arena to remain available for immediate reuse,
- without returning it to the OS. This prevents thrashing in simple loops
- where an arena could be created and destroyed anew on each iteration.
-
-- bpo-37231: The dispatching of type slots to special methods (for example
- calling ``__mul__`` when doing ``x * y``) has been made faster.
-
-- bpo-36974: Implemented separate vectorcall functions for every calling
- convention of builtin functions and methods. This improves performance for
- calls.
-
-- bpo-37213: Handle correctly negative line offsets in the peephole
- optimizer. Patch by Pablo Galindo.
-
-- bpo-37219: Remove erroneous optimization for empty set differences.
-
-- bpo-15913: Implement :c:func:`PyBuffer_SizeFromFormat()` function
- (previously documented but not implemented): call :func:`struct.calcsize`.
- Patch by Joannah Nanjekye.
-
-- bpo-36922: Slot functions optimize any callable with
- ``Py_TPFLAGS_METHOD_DESCRIPTOR`` instead of only instances of
- ``function``.
-
-- bpo-36974: The slot ``tp_vectorcall_offset`` is inherited unconditionally
- to support ``super().__call__()`` when the base class uses vectorcall.
-
-- bpo-37160: :func:`threading.get_native_id` now also supports NetBSD.
-
-- bpo-37077: Add :func:`threading.get_native_id` support for AIX. Patch by
- M. Felt
-
-- bpo-36781: :func:`sum` has been optimized for boolean values.
-
-- bpo-34556: Add ``--upgrade-deps`` to venv module. Patch by Cooper Ry Lees
-
-- bpo-20523: ``pdb.Pdb`` supports ~/.pdbrc in Windows 7. Patch by Tim Hopper
- and Dan Lidral-Porter.
-
-- bpo-35551: Updated encodings: - Removed the "tis260" encoding, which was
- an alias for the nonexistent "tactis" codec. - Added "mac_centeuro" as an
- alias for the mac_latin2 encoding.
-
-- bpo-19072: The :class:`classmethod` decorator can now wrap other
- descriptors such as property objects. Adapted from a patch written by
- Graham Dumpleton.
-
-- bpo-27575: Improve speed of dictview intersection by directly using set
- intersection logic. Patch by David Su.
-
-- bpo-30773: Prohibit parallel running of aclose() / asend() / athrow(). Fix
- ag_running to reflect the actual running status of the AG.
-
-Library
--------
-
-- bpo-36589: The :func:`curses.update_lines_cols` function now returns
- ``None`` instead of ``1`` on success.
-
-- bpo-38807: Update :exc:`TypeError` messages for :meth:`os.path.join` to
- include :class:`os.PathLike` objects as acceptable input types.
-
-- bpo-38724: Add a repr for ``subprocess.Popen`` objects. Patch by Andrey
- Doroschenko.
-
-- bpo-38786: pydoc now recognizes and parses HTTPS URLs. Patch by python273.
-
-- bpo-38785: Prevent asyncio from crashing if parent ``__init__`` is not
- called from a constructor of object derived from ``asyncio.Future``.
-
-- bpo-38723: :mod:`pdb` now uses :meth:`io.open_code` to trigger auditing
- events.
-
-- bpo-27805: Allow opening pipes and other non-seekable files in append mode
- with :func:`open`.
-
-- bpo-38438: Simplify the :mod:`argparse` usage message for ``nargs="*"``.
-
-- bpo-38761: WeakSet is now registered as a collections.abc.MutableSet.
-
-- bpo-38716: logging: change RotatingHandler namer and rotator to
- class-level attributes. This stops __init__ from setting them to None in
- the case where a subclass defines them with eponymous methods.
-
-- bpo-38713: Add :data:`os.P_PIDFD` constant, which may be passed to
- :func:`os.waitid` to wait on a Linux process file descriptor.
-
-- bpo-38692: Add :class:`asyncio.PidfdChildWatcher`, a Linux-specific child
- watcher implementation that polls process file descriptors.
-
-- bpo-38692: Expose the Linux ``pidfd_open`` syscall as
- :func:`os.pidfd_open`.
-
-- bpo-38602: Added constants :data:`~fcntl.F_OFD_GETLK`,
- :data:`~fcntl.F_OFD_SETLK` and :data:`~fcntl.F_OFD_SETLKW` to the
- :mod:`fcntl` module. Patch by Dong-hee Na.
-
-- bpo-38334: Fixed seeking backward on an encrypted
- :class:`zipfile.ZipExtFile`.
-
-- bpo-38312: Add :func:`curses.get_escdelay`, :func:`curses.set_escdelay`,
- :func:`curses.get_tabsize`, and :func:`curses.set_tabsize` functions - by
- Anthony Sottile.
-
-- bpo-38586: Now :func:`~logging.config.fileConfig` correctly sets the .name
- of handlers loaded.
-
-- bpo-38565: Add new cache_parameters() method for functools.lru_cache() to
- better support pickling.
-
-- bpo-34679: asynci.ProactorEventLoop.close() now only calls
- signal.set_wakeup_fd() in the main thread.
-
-- bpo-31202: The case the result of :func:`pathlib.WindowsPath.glob` matches
- now the case of the pattern for literal parts.
-
-- bpo-36321: Remove misspelled attribute. The 3.8 changelog noted that this
- would be removed in 3.9.
-
-- bpo-38521: Fixed erroneous equality comparison in statistics.NormalDist().
-
-- bpo-38493: Added :data:`~os.CLD_KILLED` and :data:`~os.CLD_STOPPED` for
- :attr:`si_code`. Patch by Dong-hee Na.
-
-- bpo-38478: Fixed a bug in :meth:`inspect.signature.bind` that was causing
- it to fail when handling a keyword argument with same name as
- positional-only parameter. Patch by Pablo Galindo.
-
-- bpo-33604: Fixed `hmac.new` and `hmac.HMAC` to raise TypeError instead of
- ValueError when the digestmod parameter, now required in 3.8, is omitted.
- Also clarified the hmac module documentation and docstrings.
-
-- bpo-38378: Parameters *out* and *in* of :func:`os.sendfile` was renamed to
- *out_fd* and *in_fd*.
-
-- bpo-38417: Added support for setting the umask in the child process to the
- subprocess module on POSIX systems.
-
-- bpo-38449: Revert PR 15522, which introduces a regression in
- :meth:`mimetypes.guess_type` due to improper handling of filenames as
- urls.
-
-- bpo-38431: Fix ``__repr__`` method for :class:`dataclasses.InitVar` to
- support typing objects, patch by Samuel Colvin.
-
-- bpo-38109: Add missing :data:`stat.S_IFDOOR`, :data:`stat.S_IFPORT`,
- :data:`stat.S_IFWHT`, :func:`stat.S_ISDOOR`, :func:`stat.S_ISPORT`, and
- :func:`stat.S_ISWHT` values to the Python implementation of :mod:`stat`.
-
-- bpo-38422: Clarify docstrings of pathlib suffix(es)
-
-- bpo-38405: Nested subclasses of :class:`typing.NamedTuple` are now
- pickleable.
-
-- bpo-38332: Prevent :exc:`KeyError` thrown by :func:`_encoded_words.decode`
- when given an encoded-word with invalid content-type encoding from
- propagating all the way to :func:`email.message.get`.
-
-- bpo-38371: Deprecated the ``split()`` method in
- :class:`_tkinter.TkappType` in favour of the ``splitlist()`` method which
- has more consistent and predicable behavior.
-
-- bpo-38341: Add :exc:`smtplib.SMTPNotSupportedError` to the :mod:`smtplib`
- exported names.
-
-- bpo-38319: sendfile() used in socket and shutil modules was raising
- OverflowError for files >= 2GiB on 32-bit architectures. (patch by
- Giampaolo Rodola)
-
-- bpo-38242: Revert the new asyncio Streams API
-
-- bpo-13153: OS native encoding is now used for converting between Python
- strings and Tcl objects. This allows to display, copy and paste to
- clipboard emoji and other non-BMP characters. Converting strings from Tcl
- to Python and back now never fails (except MemoryError).
-
-- bpo-38019: Correctly handle pause/resume reading of closed asyncio unix
- pipe.
-
-- bpo-38163: Child mocks will now detect their type as either synchronous or
- asynchronous, asynchronous child mocks will be AsyncMocks and synchronous
- child mocks will be either MagicMock or Mock (depending on their parent
- type).
-
-- bpo-38161: Removes _AwaitEvent from AsyncMock.
-
-- bpo-38216: Allow the rare code that wants to send invalid http requests
- from the `http.client` library a way to do so. The fixes for bpo-30458
- led to breakage for some projects that were relying on this ability to
- test their own behavior in the face of bad requests.
-
-- bpo-28286: Deprecate opening :class:`~gzip.GzipFile` for writing
- implicitly. Always specify the *mode* argument for writing.
-
-- bpo-38108: Any synchronous magic methods on an AsyncMock now return a
- MagicMock. Any asynchronous magic methods on a MagicMock now return an
- AsyncMock.
-
-- bpo-38265: Update the *length* parameter of :func:`os.pread` to accept
- :c:type:`Py_ssize_t` instead of :c:expr:`int`.
-
-- bpo-38112: :mod:`compileall` has a higher default recursion limit and new
- command-line arguments for path manipulation, symlinks handling, and
- multiple optimization levels.
-
-- bpo-38248: asyncio: Fix inconsistent immediate Task cancellation
-
-- bpo-38237: The arguments for the builtin pow function are more
- descriptive. They can now also be passed in as keywords.
-
-- bpo-34002: Improve efficiency in parts of email package by changing
- while-pop to a for loop, using isdisjoint instead of set intersections.
-
-- bpo-38191: Constructors of :class:`~typing.NamedTuple` and
- :class:`~typing.TypedDict` types now accept arbitrary keyword argument
- names, including "cls", "self", "typename", "_typename", "fields" and
- "_fields".
-
-- bpo-38155: Add ``__all__`` to :mod:`datetime`. Patch by Tahia Khan.
-
-- bpo-38185: Fixed case-insensitive string comparison in
- :class:`sqlite3.Row` indexing.
-
-- bpo-38136: Changes AsyncMock call count and await count to be two
- different counters. Now await count only counts when a coroutine has been
- awaited, not when it has been called, and vice-versa. Update the
- documentation around this.
-
-- bpo-37828: Fix default mock name in
- :meth:`unittest.mock.Mock.assert_called` exceptions. Patch by Abraham
- Toriz Cruz.
-
-- bpo-38175: Fix a memory leak in comparison of :class:`sqlite3.Row`
- objects.
-
-- bpo-33936: _hashlib no longer calls obsolete OpenSSL initialization
- function with OpenSSL 1.1.0+.
-
-- bpo-34706: Preserve subclassing in inspect.Signature.from_callable.
-
-- bpo-38153: Names of hashing algorithms from OpenSSL are now normalized to
- follow Python's naming conventions. For example OpenSSL uses sha3-512
- instead of sha3_512 or blake2b512 instead of blake2b.
-
-- bpo-38115: Fix a bug in dis.findlinestarts() where it would return invalid
- bytecode offsets. Document that a code object's co_lnotab can contain
- invalid bytecode offsets.
-
-- bpo-38148: Add slots to :mod:`asyncio` transport classes, which can reduce
- memory usage.
-
-- bpo-38142: The _hashlib OpenSSL wrapper extension module is now PEP-384
- compliant.
-
-- bpo-9216: hashlib constructors now support usedforsecurity flag to signal
- that a hashing algorithm is not used in a security context.
-
-- bpo-36991: Fixes a potential incorrect AttributeError exception escaping
- ZipFile.extract() in some unsupported input error situations.
-
-- bpo-38134: Remove obsolete copy of PBKDF2_HMAC_fast. All supported OpenSSL
- versions contain a fast implementation.
-
-- bpo-38132: The OpenSSL hashlib wrapper uses a simpler implementation.
- Several Macros and pointless caches are gone. The hash name now comes from
- OpenSSL's EVP. The algorithm name stays the same, except it is now always
- lower case.
-
-- bpo-38008: Fix parent class check in protocols to correctly identify the
- module that provides a builtin protocol, instead of assuming they all come
- from the :mod:`collections.abc` module
-
-- bpo-34037: For :mod:`asyncio`, add a new coroutine
- :meth:`loop.shutdown_default_executor`. The new coroutine provides an API
- to schedule an executor shutdown that waits on the threadpool to finish
- closing. Also, :func:`asyncio.run` has been updated to utilize the new
- coroutine. Patch by Kyle Stanley.
-
-- bpo-37405: Fixed regression bug for socket.getsockname() for non-CAN_ISOTP
- AF_CAN address family sockets by returning a 1-tuple instead of string.
-
-- bpo-38121: Update parameter names on functions in importlib.metadata
- matching the changes in the 0.22 release of importlib_metadata.
-
-- bpo-38110: The os.closewalk() implementation now uses the libc fdwalk()
- API on platforms where it is available.
-
-- bpo-38093: Fixes AsyncMock so it doesn't crash when used with
- AsyncContextManagers or AsyncIterators.
-
-- bpo-37488: Add warning to :meth:`datetime.utctimetuple`,
- :meth:`datetime.utcnow` and :meth:`datetime.utcfromtimestamp` .
-
-- bpo-35640: Allow passing a :term:`path-like object` as ``directory``
- argument to the :class:`http.server.SimpleHTTPRequestHandler` class. Patch
- by Géry Ogam.
-
-- bpo-38086: Update importlib.metadata with changes from `importlib_metadata
- 0.21
- <https://gitlab.com/python-devs/importlib_metadata/blob/0.21/importlib_metadata/docs/changelog.rst>`_.
-
-- bpo-37251: Remove `__code__` check in AsyncMock that incorrectly evaluated
- function specs as async objects but failed to evaluate classes with
- `__await__` but no `__code__` attribute defined as async objects.
-
-- bpo-38037: Fix reference counters in the :mod:`signal` module.
-
-- bpo-38066: Hide internal asyncio.Stream methods: feed_eof(), feed_data(),
- set_exception() and set_transport().
-
-- bpo-38059: inspect.py now uses sys.exit() instead of exit()
-
-- bpo-38049: Added command-line interface for the :mod:`ast` module.
-
-- bpo-37953: In :mod:`typing`, improved the ``__hash__`` and ``__eq__``
- methods for :class:`ForwardReferences`.
-
-- bpo-38026: Fixed :func:`inspect.getattr_static` used ``isinstance`` while
- it should avoid dynamic lookup.
-
-- bpo-35923: Update :class:`importlib.machinery.BuiltinImporter` to use
- ``loader._ORIGIN`` instead of a hardcoded value. Patch by Dong-hee Na.
-
-- bpo-38010: In ``importlib.metadata`` sync with ``importlib_metadata``
- 0.20, clarifying behavior of ``files()`` and fixing issue where only one
- requirement was returned for ``requires()`` on ``dist-info`` packages.
-
-- bpo-38006: weakref.WeakValueDictionary defines a local remove() function
- used as callback for weak references. This function was created with a
- closure. Modify the implementation to avoid the closure.
-
-- bpo-37995: Added the *indent* option to :func:`ast.dump` which allows it
- to produce a multiline indented output.
-
-- bpo-34410: Fixed a crash in the :func:`tee` iterator when re-enter it.
- RuntimeError is now raised in this case.
-
-- bpo-37140: Fix a ctypes regression of Python 3.8. When a ctypes.Structure
- is passed by copy to a function, ctypes internals created a temporary
- object which had the side effect of calling the structure finalizer
- (__del__) twice. The Python semantics requires a finalizer to be called
- exactly once. Fix ctypes internals to no longer call the finalizer twice.
-
-- bpo-37587: ``_json.scanstring`` is now up to 3x faster when there are many
- backslash escaped characters in the JSON string.
-
-- bpo-37834: Prevent shutil.rmtree exception when built on non-Windows
- system without fd system call support, like older versions of macOS.
-
-- bpo-10978: Semaphores and BoundedSemaphores can now release more than one
- waiting thread at a time.
-
-- bpo-37972: Subscripts to the `unittest.mock.call` objects now receive the
- same chaining mechanism as any other custom attributes, so that the
- following usage no longer raises a `TypeError`:
-
- call().foo().__getitem__('bar')
-
- Patch by blhsing
-
-- bpo-37965: Fix C compiler warning caused by
- distutils.ccompiler.CCompiler.has_function.
-
-- bpo-37964: Add ``F_GETPATH`` command to :mod:`fcntl`.
-
-- bpo-37960: ``repr()`` of buffered and text streams now silences only
- expected exceptions when get the value of "name" and "mode" attributes.
-
-- bpo-37961: Add a ``total_nframe`` field to the traces collected by the
- tracemalloc module. This field indicates the original number of frames
- before it was truncated.
-
-- bpo-37951: Most features of the subprocess module now work again in
- subinterpreters. Only *preexec_fn* is restricted in subinterpreters.
-
-- bpo-36205: Fix the rusage implementation of time.process_time() to
- correctly report the sum of the system and user CPU time.
-
-- bpo-37950: Fix :func:`ast.dump` when call with incompletely initialized
- node.
-
-- bpo-34679: Restores instantiation of Windows IOCP event loops from the
- non-main thread.
-
-- bpo-36917: Add default implementation of the
- :meth:`ast.NodeVisitor.visit_Constant` method which emits a deprecation
- warning and calls corresponding methody ``visit_Num()``, ``visit_Str()``,
- etc.
-
-- bpo-37798: Update test_statistics.py to verify that the statistics module
- works well for both C and Python implementations. Patch by Dong-hee Na
-
-- bpo-26589: Added a new status code to the http module: 451
- UNAVAILABLE_FOR_LEGAL_REASONS
-
-- bpo-37915: Fix a segmentation fault that appeared when comparing instances
- of ``datetime.timezone`` and ``datetime.tzinfo`` objects. Patch by Pablo
- Galindo.
-
-- bpo-32554: Deprecate having random.seed() call hash on arbitrary types.
-
-- bpo-9938: Add optional keyword argument ``exit_on_error`` for
- :class:`ArgumentParser`.
-
-- bpo-37851: The :mod:`faulthandler` module no longer allocates its
- alternative stack at Python startup. Now the stack is only allocated at
- the first faulthandler usage.
-
-- bpo-32793: Fix a duplicated debug message when
- :meth:`smtplib.SMTP.connect` is called.
-
-- bpo-37885: venv: Don't generate unset variable warning on deactivate.
-
-- bpo-37868: Fix dataclasses.is_dataclass when given an instance that never
- raises AttributeError in __getattr__. That is, an object that returns
- something for __dataclass_fields__ even if it's not a dataclass.
-
-- bpo-37811: Fix ``socket`` module's ``socket.connect(address)`` function
- being unable to establish connection in case of interrupted system call.
- The problem was observed on all OSes which ``poll(2)`` system call can
- take only non-negative integers and -1 as a timeout value.
-
-- bpo-37863: Optimizations for Fraction.__hash__ suggested by Tim Peters.
-
-- bpo-21131: Fix ``faulthandler.register(chain=True)`` stack. faulthandler
- now allocates a dedicated stack of ``SIGSTKSZ*2`` bytes, instead of just
- ``SIGSTKSZ`` bytes. Calling the previous signal handler in faulthandler
- signal handler uses more than ``SIGSTKSZ`` bytes of stack memory on some
- platforms.
-
-- bpo-37798: Add C fastpath for statistics.NormalDist.inv_cdf() Patch by
- Dong-hee Na
-
-- bpo-37804: Remove the deprecated method `threading.Thread.isAlive()`.
- Patch by Dong-hee Na.
-
-- bpo-37819: Add Fraction.as_integer_ratio() to match the corresponding
- methods in bool, int, float, and decimal.
-
-- bpo-14465: Add an xml.etree.ElementTree.indent() function for
- pretty-printing XML trees. Contributed by Stefan Behnel.
-
-- bpo-37810: Fix :mod:`difflib` ``?`` hint in diff output when dealing with
- tabs. Patch by Anthony Sottile.
-
-- bpo-37772: In ``zipfile.Path``, when adding implicit dirs, ensure that
- ancestral directories are added and that duplicates are excluded.
-
-- bpo-18578: Renamed and documented `test.bytecode_helper` as
- `test.support.bytecode_helper`. Patch by Joannah Nanjekye.
-
-- bpo-37785: Fix xgettext warnings in :mod:`argparse`.
-
-- bpo-34488: :meth:`writelines` method of :class:`io.BytesIO` is now
- slightly faster when many small lines are passed. Patch by Sergey
- Fedoseev.
-
-- bpo-37449: `ensurepip` now uses `importlib.resources.read_binary()` to
- read data instead of `pkgutil.get_data()`. Patch by Joannah Nanjekye.
-
-- bpo-28292: Mark calendar.py helper functions as being private. The
- follows PEP 8 guidance to maintain the style conventions in the module and
- it addresses a known case of user confusion.
-
-- bpo-18049: Add definition of THREAD_STACK_SIZE for AIX in
- Python/thread_pthread.h The default thread stacksize caused crashes with
- the default recursion limit Patch by M Felt
-
-- bpo-37742: The logging.getLogger() API now returns the root logger when
- passed the name 'root', whereas previously it returned a non-root logger
- named 'root'. This could affect cases where user code explicitly wants a
- non-root logger named 'root', or instantiates a logger using
- logging.getLogger(__name__) in some top-level module called 'root.py'.
-
-- bpo-37738: Fix the implementation of curses ``addch(str, color_pair)``:
- pass the color pair to ``setcchar()``, instead of always passing 0 as the
- color pair.
-
-- bpo-37723: Fix performance regression on regular expression parsing with
- huge character sets. Patch by Yann Vaginay.
-
-- bpo-35943: The function :c:func:`PyImport_GetModule` now ensures any
- module it returns is fully initialized. Patch by Joannah Nanjekye.
-
-- bpo-32178: Fix IndexError in :mod:`email` package when trying to parse
- invalid address fields starting with ``:``.
-
-- bpo-37268: The :mod:`parser` module is deprecated and will be removed in
- future versions of Python.
-
-- bpo-11953: Completing WSA* error codes in :mod:`socket`.
-
-- bpo-37685: Fixed comparisons of :class:`datetime.timedelta` and
- :class:`datetime.timezone`.
-
-- bpo-37697: Synchronize ``importlib.metadata`` with `importlib_metadata
- 0.19
- <https://gitlab.com/python-devs/importlib_metadata/-/milestones/20>`_,
- improving handling of EGG-INFO files and fixing a crash when entry point
- names contained colons.
-
-- bpo-37695: Correct :func:`curses.unget_wch` error message. Patch by
- Anthony Sottile.
-
-- bpo-37689: Add :meth:`is_relative_to` in :class:`PurePath` to determine
- whether or not one path is relative to another.
-
-- bpo-29553: Fixed :meth:`argparse.ArgumentParser.format_usage` for mutually
- exclusive groups. Patch by Andrew Nester.
-
-- bpo-37691: Let math.dist() accept coordinates as sequences (or iterables)
- rather than just tuples.
-
-- bpo-37685: Fixed ``__eq__``, ``__lt__`` etc implementations in some
- classes. They now return :data:`NotImplemented` for unsupported type of
- the other operand. This allows the other operand to play role (for example
- the equality comparison with :data:`~unittest.mock.ANY` will return
- ``True``).
-
-- bpo-37354: Make Activate.ps1 Powershell script static to allow for signing
- it.
-
-- bpo-37664: Update wheels bundled with ensurepip (pip 19.2.3 and setuptools
- 41.2.0)
-
-- bpo-37663: Bring consistency to venv shell activation scripts by always
- using __VENV_PROMPT__.
-
-- bpo-37642: Allowed the pure Python implementation of
- :class:`datetime.timezone` to represent sub-minute offsets close to
- minimum and maximum boundaries, specifically in the ranges (23:59, 24:00)
- and (-23:59, 24:00). Patch by Ngalim Siregar
-
-- bpo-36161: In :mod:`posix`, use ``ttyname_r`` instead of ``ttyname`` for
- thread safety.
-
-- bpo-36324: Make internal attributes for statistics.NormalDist() private.
-
-- bpo-37555: Fix `NonCallableMock._call_matcher` returning tuple instead of
- `_Call` object when `self._spec_signature` exists. Patch by Elizabeth
- Uselton
-
-- bpo-29446: Make `from tkinter import *` import only the expected objects.
-
-- bpo-16970: Adding a value error when an invalid value in passed to nargs
- Patch by Robert Leenders
-
-- bpo-34443: Exceptions from :mod:`enum` now use the ``__qualname`` of the
- enum class in the exception message instead of the ``__name__``.
-
-- bpo-37491: Fix ``IndexError`` when parsing email headers with unexpectedly
- ending bare-quoted string value. Patch by Abhilash Raj.
-
-- bpo-37587: Make json.loads faster for long strings. (Patch by Marco
- Paolini)
-
-- bpo-18378: Recognize "UTF-8" as a valid value for LC_CTYPE in
- locale._parse_localename.
-
-- bpo-37579: Return :exc:`NotImplemented` in Python implementation of
- ``__eq__`` for :class:`~datetime.timedelta` and :class:`~datetime.time`
- when the other object being compared is not of the same type to match C
- implementation. Patch by Karthikeyan Singaravelan.
-
-- bpo-21478: Record calls to parent when autospecced object is attached to a
- mock using :func:`unittest.mock.attach_mock`. Patch by Karthikeyan
- Singaravelan.
-
-- bpo-37531: "python3 -m test -jN --timeout=TIMEOUT" now kills a worker
- process if it runs longer than *TIMEOUT* seconds.
-
-- bpo-37482: Fix serialization of display name in originator or destination
- address fields with both encoded words and special chars.
-
-- bpo-36993: Improve error reporting for corrupt zip files with bad zip64
- extra data. Patch by Daniel Hillier.
-
-- bpo-37502: pickle.loads() no longer raises TypeError when the buffers
- argument is set to None
-
-- bpo-37520: Correct behavior for zipfile.Path.parent when the path object
- identifies a subdirectory.
-
-- bpo-18374: Fix the ``.col_offset`` attribute of nested :class:`ast.BinOp`
- instances which had a too large value in some situations.
-
-- bpo-37424: Fixes a possible hang when using a timeout on
- `subprocess.run()` while capturing output. If the child process spawned
- its own children or otherwise connected its stdout or stderr handles with
- another process, we could hang after the timeout was reached and our child
- was killed when attempting to read final output from the pipes.
-
-- bpo-37421: Fix :func:`multiprocessing.util.get_temp_dir` finalizer: clear
- also the 'tempdir' configuration of the current process, so next call to
- ``get_temp_dir()`` will create a new temporary directory, rather than
- reusing the removed temporary directory.
-
-- bpo-37481: The distutils ``bdist_wininst`` command is deprecated in Python
- 3.8, use ``bdist_wheel`` (wheel packages) instead.
-
-- bpo-37479: When `Enum.__str__` is overridden in a derived class, the
- override will be used by `Enum.__format__` regardless of whether mixin
- classes are present.
-
-- bpo-37440: http.client now enables TLS 1.3 post-handshake authentication
- for default context or if a cert_file is passed to HTTPSConnection.
-
-- bpo-37437: Update vendorized expat version to 2.2.7.
-
-- bpo-37428: SSLContext.post_handshake_auth = True no longer sets
- SSL_VERIFY_POST_HANDSHAKE verify flag for client connections. Although the
- option is documented as ignored for clients, OpenSSL implicitly enables
- cert chain validation when the flag is set.
-
-- bpo-37420: :func:`os.sched_setaffinity` now correctly handles errors that
- arise during iteration over its ``mask`` argument. Patch by Brandt Bucher.
-
-- bpo-37412: The :func:`os.getcwdb` function now uses the UTF-8 encoding on
- Windows, rather than the ANSI code page: see :pep:`529` for the rationale.
- The function is no longer deprecated on Windows.
-
-- bpo-37406: The sqlite3 module now raises TypeError, rather than
- ValueError, if operation argument type is not str: execute(),
- executemany() and calling a connection.
-
-- bpo-29412: Fix IndexError in parsing a header value ending unexpectedly.
- Patch by Abhilash Raj.
-
-- bpo-36546: The *dist* argument for statistics.quantiles() is now
- positional only. The current name doesn't reflect that the argument can be
- either a dataset or a distribution. Marking the parameter as positional
- avoids confusion and makes it possible to change the name later.
-
-- bpo-37394: Fix a bug that was causing the :mod:`queue` module to fail if
- the accelerator module was not available. Patch by Pablo Galindo.
-
-- bpo-37376: :mod:`pprint` now has support for
- :class:`types.SimpleNamespace`. Patch by Carl Bordum Hansen.
-
-- bpo-26967: An :class:`~argparse.ArgumentParser` with
- ``allow_abbrev=False`` no longer disables grouping of short flags, such as
- ``-vv``, but only disables abbreviation of long flags as documented. Patch
- by Zac Hatfield-Dodds.
-
-- bpo-37212: :func:`unittest.mock.call` now preserves the order of keyword
- arguments in repr output. Patch by Karthikeyan Singaravelan.
-
-- bpo-37372: Fix error unpickling datetime.time objects from Python 2 with
- seconds>=24. Patch by Justin Blanchard.
-
-- bpo-37345: Add formal support for UDPLITE sockets. Support was present
- before, but it is now easier to detect support with ``hasattr(socket,
- 'IPPROTO_UDPLITE')`` and there are constants defined for each of the
- values needed: :py:obj:`socket.IPPROTO_UDPLITE`,
- :py:obj:`UDPLITE_SEND_CSCOV`, and :py:obj:`UDPLITE_RECV_CSCOV`. Patch by
- Gabe Appleton.
-
-- bpo-37358: Optimized ``functools.partial`` by using vectorcall.
-
-- bpo-37347: :meth:`sqlite3.Connection.create_aggregate`,
- :meth:`sqlite3.Connection.create_function`,
- :meth:`sqlite3.Connection.set_authorizer`,
- :meth:`sqlite3.Connection.set_progress_handler`
- :meth:`sqlite3.Connection.set_trace_callback` methods lead to segfaults if
- some of these methods are called twice with an equal object but not the
- same. Now callbacks are stored more carefully. Patch by Aleksandr Balezin.
-
-- bpo-37163: The *obj* argument of :func:`dataclasses.replace` is
- positional-only now.
-
-- bpo-37085: Add the optional Linux SocketCAN Broadcast Manager constants,
- used as flags to configure the BCM behaviour, in the socket module. Patch
- by Karl Ding.
-
-- bpo-37328: ``HTMLParser.unescape`` is removed. It was undocumented and
- deprecated since Python 3.4.
-
-- bpo-37305: Add .webmanifest -> application/manifest+json to list of
- recognized file types and content type headers
-
-- bpo-37320: ``aifc.openfp()`` alias to ``aifc.open()``, ``sunau.openfp()``
- alias to ``sunau.open()``, and ``wave.openfp()`` alias to ``wave.open()``
- have been removed. They were deprecated since Python 3.7.
-
-- bpo-37315: Deprecated accepting floats with integral value (like ``5.0``)
- in :func:`math.factorial`.
-
-- bpo-37312: ``_dummy_thread`` and ``dummy_threading`` modules have been
- removed. These modules were deprecated since Python 3.7 which requires
- threading support.
-
-- bpo-33972: Email with single part but content-type set to ``multipart/*``
- doesn't raise AttributeError anymore.
-
-- bpo-37280: Use threadpool for reading from file for sendfile fallback
- mode.
-
-- bpo-37279: Fix asyncio sendfile support when sendfile sends extra data in
- fallback mode.
-
-- bpo-19865: :func:`ctypes.create_unicode_buffer()` now also supports
- non-BMP characters on platforms with 16-bit :c:type:`wchar_t` (for
- example, Windows and AIX).
-
-- bpo-37266: In a subinterpreter, spawning a daemon thread now raises an
- exception. Daemon threads were never supported in subinterpreters.
- Previously, the subinterpreter finalization crashed with a Python fatal
- error if a daemon thread was still running.
-
-- bpo-37210: Allow pure Python implementation of :mod:`pickle` to work even
- when the C :mod:`_pickle` module is unavailable.
-
-- bpo-21872: Fix :mod:`lzma`: module decompresses data incompletely. When
- decompressing a FORMAT_ALONE format file, and it doesn't have the end
- marker, sometimes the last one to dozens bytes can't be output. Patch by
- Ma Lin.
-
-- bpo-35922: Fix :meth:`RobotFileParser.crawl_delay` and
- :meth:`RobotFileParser.request_rate` to return ``None`` rather than raise
- :exc:`AttributeError` when no relevant rule is defined in the robots.txt
- file. Patch by Rémi Lapeyre.
-
-- bpo-35766: Change the format of feature_version to be a (major, minor)
- tuple.
-
-- bpo-36607: Eliminate :exc:`RuntimeError` raised by
- :func:`asyncio.all_tasks()` if internal tasks weak set is changed by
- another thread during iteration.
-
-- bpo-18748: :class:`_pyio.IOBase` destructor now does nothing if getting
- the ``closed`` attribute fails to better mimic :class:`_io.IOBase`
- finalizer.
-
-- bpo-36402: Fix a race condition at Python shutdown when waiting for
- threads. Wait until the Python thread state of all non-daemon threads get
- deleted (join all non-daemon threads), rather than just wait until
- non-daemon Python threads complete.
-
-- bpo-37206: Default values which cannot be represented as Python objects no
- longer improperly represented as ``None`` in function signatures.
-
-- bpo-37111: Added ``encoding`` and ``errors`` keyword parameters to
- ``logging.basicConfig``.
-
-- bpo-12144: Ensure cookies with ``expires`` attribute are handled in
- :meth:`CookieJar.make_cookies`.
-
-- bpo-34886: Fix an unintended ValueError from :func:`subprocess.run` when
- checking for conflicting `input` and `stdin` or `capture_output` and
- `stdout` or `stderr` args when they were explicitly provided but with
- `None` values within a passed in `**kwargs` dict rather than as passed
- directly by name. Patch contributed by Rémi Lapeyre.
-
-- bpo-37173: The exception message for ``inspect.getfile()`` now correctly
- reports the passed class rather than the builtins module.
-
-- bpo-37178: Give math.perm() a one argument form that means the same as
- math.factorial().
-
-- bpo-37178: For math.perm(n, k), let k default to n, giving the same result
- as factorial.
-
-- bpo-37165: Converted _collections._count_elements to use the Argument
- Clinic.
-
-- bpo-34767: Do not always create a :class:`collections.deque` in
- :class:`asyncio.Lock`.
-
-- bpo-37158: Speed-up statistics.fmean() by switching from a function to a
- generator.
-
-- bpo-34282: Remove ``Enum._convert`` method, deprecated in 3.8.
-
-- bpo-37150: `argparse._ActionsContainer.add_argument` now throws error, if
- someone accidentally pass FileType class object instead of instance of
- FileType as `type` argument
-
-- bpo-28724: The socket module now has the :func:`socket.send_fds` and
- :func:`socket.recv.fds` methods. Contributed by Joannah Nanjekye, Shinya
- Okano and Victor Stinner.
-
-- bpo-35621: Support running asyncio subprocesses when execution event loop
- in a thread on UNIX.
-
-- bpo-36520: Lengthy email headers with UTF-8 characters are now properly
- encoded when they are folded. Patch by Jeffrey Kintscher.
-
-- bpo-30835: Fixed a bug in email parsing where a message with invalid bytes
- in content-transfer-encoding of a multipart message can cause an
- AttributeError. Patch by Andrew Donnellan.
-
-- bpo-31163: pathlib.Path instance's rename and replace methods now return
- the new Path instance.
-
-- bpo-25068: :class:`urllib.request.ProxyHandler` now lowercases the keys of
- the passed dictionary.
-
-- bpo-26185: Fix :func:`repr` on empty :class:`ZipInfo` object. Patch by
- Mickaël Schoentgen.
-
-- bpo-21315: Email headers containing RFC2047 encoded words are parsed
- despite the missing whitespace, and a defect registered. Also missing
- trailing whitespace after encoded words is now registered as a defect.
-
-- bpo-31904: Port test_datetime to VxWorks: skip zoneinfo tests on VxWorks
-
-- bpo-35805: Add parser for Message-ID header and add it to default
- HeaderRegistry. This should prevent folding of Message-ID using RFC 2048
- encoded words.
-
-- bpo-36871: Ensure method signature is used instead of constructor
- signature of a class while asserting mock object against method calls.
- Patch by Karthikeyan Singaravelan.
-
-- bpo-35070: posix.getgrouplist() now works correctly when the user belongs
- to NGROUPS_MAX supplemental groups. Patch by Jeffrey Kintscher.
-
-- bpo-31783: Fix race condition in ThreadPoolExecutor when worker threads
- are created during interpreter shutdown.
-
-- bpo-36582: Fix ``UserString.encode()`` to correctly return ``bytes``
- rather than a ``UserString`` instance.
-
-- bpo-32424: Deprecate xml.etree.ElementTree.Element.copy() in favor of
- copy.copy().
-
- Patch by Gordon P. Hemsley
-
-- bpo-36564: Fix infinite loop in email header folding logic that would be
- triggered when an email policy's max_line_length is not long enough to
- include the required markup and any values in the message. Patch by Paul
- Ganssle
-
-- bpo-36543: Removed methods Element.getchildren(), Element.getiterator()
- and ElementTree.getiterator() and the xml.etree.cElementTree module.
-
-- bpo-36409: Remove the old plistlib API deprecated in Python 3.4
-
-- bpo-36302: distutils sorts source file lists so that Extension .so files
- build more reproducibly by default
-
-- bpo-36250: Ignore ``ValueError`` from ``signal`` with ``interaction`` in
- non-main thread.
-
-- bpo-36046: Added ``user``, ``group`` and ``extra_groups`` parameters to
- the subprocess.Popen constructor. Patch by Patrick McLean.
-
-- bpo-32627: Fix compile error when ``_uuid`` headers conflicting included.
-
-- bpo-35800: Deprecate ``smtpd.MailmanProxy`` ready for future removal.
-
-- bpo-35168: :attr:`shlex.shlex.punctuation_chars` is now a read-only
- property.
-
-- bpo-8538: Add support for boolean actions like ``--foo`` and ``--no-foo``
- to argparse. Patch contributed by Rémi Lapeyre.
-
-- bpo-20504: Fixes a bug in :mod:`cgi` module when a multipart/form-data
- request has no `Content-Length` header.
-
-- bpo-25988: The abstract base classes in :mod:`collections.abc` no longer
- are exposed in the regular :mod:`collections` module.
-
-- bpo-11122: Distutils won't check for rpmbuild in specified paths only.
-
-- bpo-34775: Division handling of PurePath now returns NotImplemented
- instead of raising a TypeError when passed something other than an
- instance of str or PurePath. Patch by Roger Aiudi.
-
-- bpo-34749: :func:`binascii.a2b_base64` is now up to 2 times faster. Patch
- by Sergey Fedoseev.
-
-- bpo-34519: Add additional aliases for HP Roman 8. Patch by Michael Osipov.
-
-- bpo-28009: Fix uuid.getnode() on platforms with '.' as MAC Addr delimiter
- as well fix for MAC Addr format that omits a leading 0 in MAC Addr values.
- Currently, AIX is the only know platform with these settings. Patch by
- Michael Felt.
-
-- bpo-30618: Add :meth:`~pathlib.Path.readlink`. Patch by Girts Folkmanis.
-
-- bpo-32498: Made :func:`urllib.parse.unquote()` accept bytes in addition to
- strings. Patch by Stein Karlsen.
-
-- bpo-33348: lib2to3 now recognizes expressions after ``*`` and `**` like in
- ``f(*[] or [])``.
-
-- bpo-32689: Update :func:`shutil.move` function to allow for Path objects
- to be used as source argument. Patch by Emily Morehouse and Maxwell
- "5.13b" McKinnon.
-
-- bpo-32820: Added __format__ to IPv4 and IPv6 classes. Always outputs a
- fully zero- padded string. Supports b/x/n modifiers (bin/hex/native
- format). Native format for IPv4 is bin, native format for IPv6 is hex.
- Also supports '#' and '_' modifiers.
-
-- bpo-27657: Fix urllib.parse.urlparse() with numeric paths. A string like
- "path:80" is no longer parsed as a path but as a scheme ("path") and a
- path ("80").
-
-- bpo-4963: Fixed non-deterministic behavior related to mimetypes extension
- mapping and module reinitialization.
-
-Documentation
--------------
-
-- bpo-21767: Explicitly mention abc support in functools.singledispatch
-
-- bpo-38816: Provides more details about the interaction between
- :c:func:`fork` and CPython's runtime, focusing just on the C-API. This
- includes cautions about where :c:func:`fork` should and shouldn't be
- called.
-
-- bpo-38351: Modernize :mod:`email` examples from %-formatting to f-strings.
-
-- bpo-38778: Document the fact that :exc:`RuntimeError` is raised if
- :meth:`os.fork` is called in a subinterpreter.
-
-- bpo-38592: Add Brazilian Portuguese to the language switcher at Python
- Documentation website.
-
-- bpo-38294: Add list of no-longer-escaped chars to re.escape documentation
-
-- bpo-38053: Modernized the plistlib documentation
-
-- bpo-26868: Fix example usage of :c:func:`PyModule_AddObject` to properly
- handle errors.
-
-- bpo-36797: Fix a dead link in the distutils API Reference.
-
-- bpo-37977: Warn more strongly and clearly about pickle insecurity
-
-- bpo-37979: Added a link to dateutil.parser.isoparse in the
- datetime.fromisoformat documentation. Patch by Paul Ganssle
-
-- bpo-12707: Deprecate info(), geturl(), getcode() methods in favor of the
- headers, url, and status properties, respectively, for HTTPResponse and
- addinfourl. Also deprecate the code attribute of addinfourl in favor of
- the status attribute. Patch by Ashwin Ramaswami
-
-- bpo-37937: Mention ``frame.f_trace`` in :func:`sys.settrace` docs.
-
-- bpo-37878: Make :c:func:`PyThreadState_DeleteCurrent` Internal.
-
-- bpo-37759: Beginning edits to Whatsnew 3.8
-
-- bpo-37726: Stop recommending getopt in the tutorial for command line
- argument parsing and promote argparse.
-
-- bpo-32910: Remove implementation-specific behaviour of how venv's
- Deactivate works.
-
-- bpo-37256: Fix wording of arguments for :class:`Request` in
- :mod:`urllib.request`
-
-- bpo-37284: Add a brief note to indicate that any new
- ``sys.implementation`` required attributes must go through the PEP
- process.
-
-- bpo-30088: Documented that :class:`mailbox.Maildir` constructor doesn't
- attempt to verify the maildir folder layout correctness. Patch by
- Sviatoslav Sydorenko.
-
-- bpo-37521: Fix `importlib` examples to insert any newly created modules
- via importlib.util.module_from_spec() immediately into sys.modules instead
- of after calling loader.exec_module().
-
- Thanks to Benjamin Mintz for finding the bug.
-
-- bpo-37456: Slash ('/') is now part of syntax.
-
-- bpo-37487: Fix PyList_GetItem index description to include 0.
-
-- bpo-37149: Replace the dead link to the Tkinter 8.5 reference by John
- Shipman, New Mexico Tech, with a link to the archive.org copy.
-
-- bpo-37478: Added possible exceptions to the description of os.chdir().
-
-- bpo-34903: Documented that in :meth:`datetime.datetime.strptime()`, the
- leading zero in some two-digit formats is optional. Patch by Mike Gleen.
-
-- bpo-36260: Add decompression pitfalls to zipfile module documentation.
-
-- bpo-37004: In the documentation for difflib, a note was added explicitly
- warning that the results of SequenceMatcher's ratio method may depend on
- the order of the input strings.
-
-- bpo-36960: Restructured the :mod:`datetime` docs in the interest of making
- them more user-friendly and improving readability. Patch by Brad Solomon.
-
-- bpo-36487: Make C-API docs clear about what the "main" interpreter is.
-
-- bpo-23460: The documentation for decimal string formatting using the `:g`
- specifier has been updated to reflect the correct exponential notation
- cutoff point. Original patch contributed by Tuomas Suutari.
-
-- bpo-35803: Document and test that ``tempfile`` functions may accept a
- :term:`path-like object` for the ``dir`` argument. Patch by Anthony
- Sottile.
-
-- bpo-33944: Added a note about the intended use of code in .pth files.
-
-- bpo-34293: Fix the Doc/Makefile regarding PAPER environment variable and
- PDF builds
-
-- bpo-25237: Add documentation for tkinter modules
-
-Tests
------
-
-- bpo-38614: Fix test_communicate() of test_asyncio.test_subprocess: use
- ``support.LONG_TIMEOUT`` (5 minutes), instead of just 1 minute.
-
-- bpo-38614: Add timeout constants to :mod:`test.support`:
- :data:`~test.support.LOOPBACK_TIMEOUT`,
- :data:`~test.support.INTERNET_TIMEOUT`,
- :data:`~test.support.SHORT_TIMEOUT` and
- :data:`~test.support.LONG_TIMEOUT`.
-
-- bpo-38502: test.regrtest now uses process groups in the multiprocessing
- mode (-jN command line option) if process groups are available: if
- :func:`os.setsid` and :func:`os.killpg` functions are available.
-
-- bpo-35998: Fix a race condition in test_asyncio.test_start_tls_server_1().
- Previously, there was a race condition between the test main() function
- which replaces the protocol and the test ServerProto protocol which sends
- ANSWER once it gets HELLO. Now, only the test main() function is
- responsible to send data, ServerProto no longer sends data.
-
-- bpo-38470: Fix ``test_compileall.test_compile_dir_maxlevels()`` on Windows
- without long path support: only create 3 subdirectories instead of between
- 20 and 100 subdirectories.
-
-- bpo-37531: On timeout, regrtest no longer attempts to call
- ``popen.communicate()`` again: it can hang until all child processes using
- stdout and stderr pipes completes. Kill the worker process and ignores its
- output. Change also the faulthandler timeout of the main process from 1
- minute to 5 minutes, for Python slowest buildbots.
-
-- bpo-38239: Fix test_gdb for Link Time Optimization (LTO) builds.
-
-- bpo-38275: test_ssl now handles disabled TLS/SSL versions better.
- OpenSSL's crypto policy and run-time settings are recognized and tests for
- disabled versions are skipped. Tests also accept more TLS minimum_versions
- for platforms that override OpenSSL's default with strict settings.
-
-- bpo-38271: The private keys for test_ssl were encrypted with 3DES in
- traditional PKCS#5 format. 3DES and the digest algorithm of PKCS#5 are
- blocked by some strict crypto policies. Use PKCS#8 format with AES256
- encryption instead.
-
-- bpo-38270: test.support now has a helper function to check for
- availability of a hash digest function. Several tests are refactored avoid
- MD5 and use SHA256 instead. Other tests are marked to use MD5 and skipped
- when MD5 is disabled.
-
-- bpo-37123: Multiprocessing test test_mymanager() now also expects
- -SIGTERM, not only exitcode 0. BaseManager._finalize_manager() sends
- SIGTERM to the manager process if it takes longer than 1 second to stop,
- which happens on slow buildbots.
-
-- bpo-38212: Multiprocessing tests: increase
- test_queue_feeder_donot_stop_onexc() timeout from 1 to 60 seconds.
-
-- bpo-38117: Test with OpenSSL 1.1.1d
-
-- bpo-38018: Increase code coverage for multiprocessing.shared_memory.
-
-- bpo-37805: Add tests for json.dump(..., skipkeys=True). Patch by Dong-hee
- Na.
-
-- bpo-37531: Enhance regrtest multiprocess timeout: write a message when
- killing a worker process, catch popen.kill() and popen.wait() exceptions,
- put a timeout on the second call to popen.communicate().
-
-- bpo-37876: Add tests for ROT-13 codec.
-
-- bpo-36833: Added tests for PyDateTime_xxx_GET_xxx() macros of the C API of
- the :mod:`datetime` module. Patch by Joannah Nanjekye.
-
-- bpo-37558: Fix test_shared_memory_cleaned_after_process_termination name
- handling
-
-- bpo-37526: Add :func:`test.support.catch_threading_exception`: context
- manager catching :class:`threading.Thread` exception using
- :func:`threading.excepthook`.
-
-- bpo-37421: test_concurrent_futures now explicitly stops the ForkServer
- instance if it's running.
-
-- bpo-37421: multiprocessing tests now stop the ForkServer instance if it's
- running: close the "alive" file descriptor to ask the server to stop and
- then remove its UNIX address.
-
-- bpo-37421: test_distutils.test_build_ext() is now able to remove the
- temporary directory on Windows: don't import the newly built C extension
- ("xx") in the current process, but test it in a separated process.
-
-- bpo-37421: test_concurrent_futures now cleans up multiprocessing to remove
- immediately temporary directories created by
- multiprocessing.util.get_temp_dir().
-
-- bpo-37421: test_winconsoleio doesn't leak a temporary file anymore: use
- tempfile.TemporaryFile() to remove it when the test completes.
-
-- bpo-37421: multiprocessing tests now explicitly call ``_run_finalizers()``
- to immediately remove temporary directories created by tests.
-
-- bpo-37421: urllib.request tests now call
- :func:`~urllib.request.urlcleanup` to remove temporary files created by
- ``urlretrieve()`` tests and to clear the ``_opener`` global variable set
- by ``urlopen()`` and functions calling indirectly ``urlopen()``.
-
-- bpo-37472: Remove ``Lib/test/outstanding_bugs.py``.
-
-- bpo-37199: Fix test failures when IPv6 is unavailable or disabled.
-
-- bpo-19696: Replace deprecated method "random.choose" with "random.choice"
- in "test_pkg_import.py".
-
-- bpo-37335: Remove no longer necessary code from c locale coercion tests
-
-- bpo-37421: Fix test_shutil to no longer leak temporary files.
-
-- bpo-37411: Fix test_wsgiref.testEnviron() to no longer depend on the
- environment variables (don't fail if "X" variable is set).
-
-- bpo-37400: Fix test_os.test_chown(): use os.getgroups() rather than
- grp.getgrall() to get groups. Rename also the test to test_chown_gid().
-
-- bpo-37359: Add --cleanup option to python3 -m test to remove
- ``test_python_*`` directories of previous failed jobs. Add "make
- cleantest" to run ``python3 -m test --cleanup``.
-
-- bpo-37362: test_gdb no longer fails if it gets an "unexpected" message on
- stderr: it now ignores stderr. The purpose of test_gdb is to test that
- python-gdb.py commands work as expected, not to test gdb.
-
-- bpo-35998: Avoid TimeoutError in test_asyncio: test_start_tls_server_1()
-
-- bpo-37278: Fix test_asyncio ProactorLoopCtrlC: join the thread to prevent
- leaking a running thread and leaking a reference.
-
-- bpo-37261: Fix :func:`test.support.catch_unraisable_exception`: its
- __exit__() method now ignores unraisable exception raised when clearing
- its ``unraisable`` attribute.
-
-- bpo-37069: regrtest now uses :func:`sys.unraisablehook` to mark a test as
- "environment altered" (ENV_CHANGED) if it emits an "unraisable exception".
- Moreover, regrtest logs a warning in this case.
-
- Use ``python3 -m test --fail-env-changed`` to catch unraisable exceptions
- in tests.
-
-- bpo-37252: Fix assertions in ``test_close`` and
- ``test_events_mask_overflow`` devpoll tests.
-
-- bpo-37169: Rewrite ``_PyObject_IsFreed()`` unit tests.
-
-- bpo-37153: ``test_venv.test_multiprocessing()`` now explicitly calls
- ``pool.terminate()`` to wait until the pool completes.
-
-- bpo-34001: Make test_ssl pass with LibreSSL. LibreSSL handles minimum and
- maximum TLS version differently than OpenSSL.
-
-- bpo-36919: Make ``test_source_encoding.test_issue2301`` implementation
- independent. The test will work now for both CPython and IronPython.
-
-- bpo-30202: Update ``test.test_importlib.test_abc`` to test
- ``find_spec()``.
-
-- bpo-28009: Modify the test_uuid logic to test when a program is available
- AND can be used to obtain a MACADDR as basis for an UUID. Patch by M. Felt
-
-- bpo-34596: Fallback to a default reason when :func:`unittest.skip` is
- uncalled. Patch by Naitree Zhu.
-
-Build
------
-
-- bpo-38809: On Windows, build scripts will now recognize and use python.exe
- from an active virtual env.
-
-- bpo-38684: Fix _hashlib build when Blake2 is disabled, but OpenSSL
- supports it.
-
-- bpo-38468: Misc/python-config.in now uses `getvar()` for all still
- existing `sysconfig.get_config_var()` calls. Patch by Joannah Nanjekye.
-
-- bpo-37415: Fix stdatomic.h header check for ICC compiler: the ICC
- implementation lacks atomic_uintptr_t type which is needed by Python.
-
-- bpo-38301: In Solaris family, we must be sure to use ``-D_REENTRANT``.
- Patch by Jesús Cea Avión.
-
-- bpo-36002: Locate ``llvm-profdata`` and ``llvm-ar`` binaries using
- ``AC_PATH_TOOL`` rather than ``AC_PATH_TARGET_TOOL``.
-
-- bpo-37936: The :file:`.gitignore` file systematically keeps "rooted", with
- a non-trailing slash, all the rules that are meant to apply to files in a
- specific place in the repo. Previously, when the intended file to ignore
- happened to be at the root of the repo, we'd most often accidentally also
- ignore files and directories with the same name anywhere in the tree.
-
-- bpo-37760: The :file:`Tools/unicode/makeunicodedata.py` script, which is
- used for converting information from the Unicode Character Database into
- generated code and data used by the methods of :class:`str` and by the
- :mod:`unicodedata` module, now handles each character's data as a
- ``dataclass`` with named attributes, rather than a length-18 list of
- different fields.
-
-- bpo-37936: The :file:`.gitignore` file no longer applies to any files that
- are in fact tracked in the Git repository. Patch by Greg Price.
-
-- bpo-37725: Change "clean" makefile target to also clean the program guided
- optimization (PGO) data. Previously you would have to use "make clean"
- and "make profile-removal", or "make clobber".
-
-- bpo-37707: Mark some individual tests to skip when --pgo is used. The
- tests marked increase the PGO task time significantly and likely don't
- help improve optimization of the final executable.
-
-- bpo-36044: Reduce the number of unit tests run for the PGO generation
- task. This speeds up the task by a factor of about 15x. Running the full
- unit test suite is slow. This change may result in a slightly less
- optimized build since not as many code branches will be executed. If you
- are willing to wait for the much slower build, the old behavior can be
- restored using './configure [..] PROFILE_TASK="-m test --pgo-extended"'.
- We make no guarantees as to which PGO task set produces a faster build.
- Users who care should run their own relevant benchmarks as results can
- depend on the environment, workload, and compiler tool chain.
-
-- bpo-37468: ``make install`` no longer installs ``wininst-*.exe`` files
- used by distutils bdist_wininst: bdist_wininst only works on Windows.
-
-- bpo-37189: Many ``PyRun_XXX()`` functions like :c:func:`PyRun_String` were
- no longer exported in ``libpython38.dll`` by mistake. Export them again to
- fix the ABI compatibility.
-
-- bpo-25361: Enables use of SSE2 instructions in Windows 32-bit build.
-
-- bpo-36210: Update optional extension module detection for AIX. ossaudiodev
- and spwd are not applicable for AIX, and are no longer reported as
- missing. 3rd-party packaging of ncurses (with ASIS support) conflicts with
- officially supported AIX curses library, so configure AIX to use
- libcurses.a. However, skip trying to build _curses_panel.
-
- patch by M Felt
-
-Windows
--------
-
-- bpo-38589: Fixes HTML Help shortcut when Windows is not installed to C
- drive
-
-- bpo-38453: Ensure ntpath.realpath() correctly resolves relative paths.
-
-- bpo-38519: Restores the internal C headers that were missing from the
- nuget.org and Microsoft Store packages.
-
-- bpo-38492: Remove ``pythonw.exe`` dependency on the Microsoft C++ runtime.
-
-- bpo-38344: Fix error message in activate.bat
-
-- bpo-38359: Ensures ``pyw.exe`` launcher reads correct registry key.
-
-- bpo-38355: Fixes ``ntpath.realpath`` failing on ``sys.executable``.
-
-- bpo-38117: Update bundled OpenSSL to 1.1.1d
-
-- bpo-38092: Reduce overhead when using multiprocessing in a Windows virtual
- environment.
-
-- bpo-38133: Allow py.exe launcher to locate installations from the
- Microsoft Store and improve display of active virtual environments.
-
-- bpo-38114: The ``pip.ini`` is no longer included in the Nuget package.
-
-- bpo-32592: Set Windows 8 as the minimum required version for API support
-
-- bpo-36634: :func:`os.cpu_count` now returns active processors rather than
- maximum processors.
-
-- bpo-36634: venv activate.bat now works when the existing variables contain
- double quote characters.
-
-- bpo-38081: Prevent error calling :func:`os.path.realpath` on ``'NUL'``.
-
-- bpo-38087: Fix case sensitivity in test_pathlib and test_ntpath.
-
-- bpo-38088: Fixes distutils not finding vcruntime140.dll with only the v142
- toolset installed.
-
-- bpo-37283: Ensure command-line and unattend.xml setting override
- previously detected states in Windows installer.
-
-- bpo-38030: Fixes :func:`os.stat` failing for block devices on Windows
-
-- bpo-38020: Fixes potential crash when calling :func:`os.readlink` (or
- indirectly through :func:`~os.path.realpath`) on a file that is not a
- supported link.
-
-- bpo-37705: Improve the implementation of ``winerror_to_errno()``.
-
-- bpo-37549: :func:`os.dup` no longer fails for standard streams on Windows
- 7.
-
-- bpo-1311: The ``nul`` file on Windows now returns True from
- :func:`~os.path.exists` and a valid result from :func:`os.stat` with
- ``S_IFCHR`` set.
-
-- bpo-9949: Enable support for following symlinks in :func:`os.realpath`.
-
-- bpo-37834: Treat all name surrogate reparse points on Windows in
- :func:`os.lstat` and other reparse points as regular files in
- :func:`os.stat`.
-
-- bpo-36266: Add the module name in the formatted error message when DLL
- load fail happens during module import in
- ``_PyImport_FindSharedFuncptrWindows()``. Patch by Srinivas Nyayapati.
-
-- bpo-25172: Trying to import the :mod:`crypt` module on Windows will result
- in an :exc:`ImportError` with a message explaining that the module isn't
- supported on Windows. On other platforms, if the underlying ``_crypt``
- module is not available, the ImportError will include a message explaining
- the problem.
-
-- bpo-37778: Fixes the icons used for file associations to the Microsoft
- Store package.
-
-- bpo-37734: Fix use of registry values to launch Python from Microsoft
- Store app.
-
-- bpo-37702: Fix memory leak on Windows in creating an SSLContext object or
- running urllib.request.urlopen('https://...').
-
-- bpo-37672: Switch Windows Store package's pip to use bundled
- :file:`pip.ini` instead of :envvar:`PIP_USER` variable.
-
-- bpo-10945: Officially drop support for creating bdist_wininst installers
- on non-Windows systems.
-
-- bpo-37445: Include the ``FORMAT_MESSAGE_IGNORE_INSERTS`` flag in
- ``FormatMessageW()`` calls.
-
-- bpo-37369: Fixes path for :data:`sys.executable` when running from the
- Microsoft Store.
-
-- bpo-37380: Don't collect unfinished processes with ``subprocess._active``
- on Windows to cleanup later. Patch by Ruslan Kuprieiev.
-
-- bpo-37351: Removes libpython38.a from standard Windows distribution.
-
-- bpo-35360: Update Windows builds to use SQLite 3.28.0.
-
-- bpo-37267: On Windows, :func:`os.dup` no longer creates an inheritable fd
- when handling a character file.
-
-- bpo-36779: Ensure ``time.tzname`` is correct on Windows when the active
- code page is set to CP_UTF7 or CP_UTF8.
-
-- bpo-32587: Make :data:`winreg.REG_MULTI_SZ` support zero-length strings.
-
-- bpo-28269: Replace use of :c:func:`strcasecmp` for the system function
- :c:func:`_stricmp`. Patch by Minmin Gong.
-
-- bpo-36590: Add native Bluetooth RFCOMM support to socket module.
-
-macOS
------
-
-- bpo-38117: Updated OpenSSL to 1.1.1d in macOS installer.
-
-- bpo-38089: Move Azure Pipelines to latest VM versions and make macOS tests
- optional
-
-- bpo-18049: Increase the default stack size of threads from 5MB to 16MB on
- macOS, to match the stack size of the main thread. This avoids crashes on
- deep recursion in threads.
-
-- bpo-34602: Avoid test suite failures on macOS by no longer calling
- resource.setrlimit to increase the process stack size limit at runtime.
- The runtime change is no longer needed since the interpreter is being
- built with a larger default stack size.
-
-- bpo-35360: Update macOS installer to use SQLite 3.28.0.
-
-- bpo-34631: Updated OpenSSL to 1.1.1c in macOS installer.
-
-IDLE
-----
-
-- bpo-26353: Stop adding newline when saving an IDLE shell window.
-
-- bpo-4630: Add an option to toggle IDLE's cursor blink for shell, editor,
- and output windows. See Settings, General, Window Preferences, Cursor
- Blink. Patch by Zackery Spytz.
-
-- bpo-38598: Do not try to compile IDLE shell or output windows
-
-- bpo-36698: IDLE no longer fails when write non-encodable characters to
- stderr. It now escapes them with a backslash, as the regular Python
- interpreter. Added the ``errors`` field to the standard streams.
-
-- bpo-35379: When exiting IDLE, catch any AttributeError. One happens when
- EditorWindow.close is called twice. Printing a traceback, when IDLE is
- run from a terminal, is useless and annoying.
-
-- bpo-38183: To avoid problems, test_idle ignores the user config directory.
- It no longer tries to create or access .idlerc or any files within. Users
- must run IDLE to discover problems with saving settings.
-
-- bpo-38077: IDLE no longer adds 'argv' to the user namespace when
- initializing it. This bug only affected 3.7.4 and 3.8.0b2 to 3.8.0b4.
-
-- bpo-38041: Shell restart lines now fill the window width, always start
- with '=', and avoid wrapping unnecessarily. The line will still wrap if
- the included file name is long relative to the width.
-
-- bpo-35771: To avoid occasional spurious test_idle failures on slower
- machines, increase the ``hover_delay`` in test_tooltip.
-
-- bpo-37824: Properly handle user input warnings in IDLE shell. Cease
- turning SyntaxWarnings into SyntaxErrors.
-
-- bpo-37929: IDLE Settings dialog now closes properly when there is no shell
- window.
-
-- bpo-37902: Add mousewheel scrolling for IDLE module, path, and stack
- browsers. Patch by George Zhang.
-
-- bpo-37849: Fixed completions list appearing too high or low when shown
- above the current line.
-
-- bpo-36419: Refactor IDLE autocomplete and improve testing.
-
-- bpo-37748: Reorder the Run menu. Put the most common choice, Run Module,
- at the top.
-
-- bpo-37692: Improve highlight config sample with example shell interaction
- and better labels for shell elements.
-
-- bpo-37628: Settings dialog no longer expands with font size.
-
-- bpo-37627: Initialize the Customize Run dialog with the command line
- arguments most recently entered before. The user can optionally edit
- before submitting them.
-
-- bpo-33610: Fix code context not showing the correct context when first
- toggled on.
-
-- bpo-37530: Optimize code context to reduce unneeded background activity.
- Font and highlight changes now occur along with text changes instead of
- after a random delay.
-
-- bpo-27452: Cleanup ``config.py`` by inlining ``RemoveFile`` and
- simplifying the handling of ``file`` in ``CreateConfigHandlers``.
-
-- bpo-37325: Fix tab focus traversal order for help source and custom run
- dialogs.
-
-- bpo-37321: Both subprocess connection error messages now refer to the
- 'Startup failure' section of the IDLE doc.
-
-- bpo-17535: Add optional line numbers for IDLE editor windows. Windows
- open without line numbers unless set otherwise in the General tab of the
- configuration dialog.
-
-- bpo-26806: To compensate for stack frames added by IDLE and avoid possible
- problems with low recursion limits, add 30 to limits in the user code
- execution process. Subtract 30 when reporting recursion limits to make
- this addition mostly transparent.
-
-- bpo-37177: Properly 'attach' search dialogs to their main window so that
- they behave like other dialogs and do not get hidden behind their main
- window.
-
-- bpo-37039: Adjust "Zoom Height" to individual screens by momentarily
- maximizing the window on first use with a particular screen. Changing
- screen settings may invalidate the saved height. While a window is
- maximized, "Zoom Height" has no effect.
-
-- bpo-35763: Make calltip reminder about '/' meaning positional-only less
- obtrusive by only adding it when there is room on the first line.
-
-- bpo-5680: Add 'Run... Customized' to the Run menu to run a module with
- customized settings. Any 'command line arguments' entered are added to
- sys.argv. One can suppress the normal Shell main module restart.
-
-- bpo-36390: Gather Format menu functions into format.py. Combine
- paragraph.py, rstrip.py, and format methods from editor.py.
-
-Tools/Demos
------------
-
-- bpo-38118: Update Valgrind suppression file to ignore a false alarm in
- :c:func:`PyUnicode_Decode` when using GCC builtin strcmp().
-
-- bpo-38347: pathfix.py: Assume all files that end on '.py' are Python
- scripts when working recursively.
-
-- bpo-37803: pdb's ``--help`` and ``--version`` long options now work.
-
-- bpo-37942: Improve ArgumentClinic converter for floats.
-
-- bpo-37704: Remove ``Tools/scripts/h2py.py``: use cffi to access a C API in
- Python.
-
-- bpo-37675: 2to3 now works when run from a zipped standard library.
-
-- bpo-37034: Argument Clinic now uses the argument name on errors with
- keyword-only argument instead of their position. Patch contributed by Rémi
- Lapeyre.
-
-- bpo-37064: Add option -k to pathscript.py script: preserve shebang flags.
- Add option -a to pathscript.py script: add flags.
-
-C API
------
-
-- bpo-37633: Re-export some function compatibility wrappers for macros in
- ``pythonrun.h``.
-
-- bpo-38644: Provide :c:func:`Py_EnterRecursiveCall` and
- :c:func:`Py_LeaveRecursiveCall` as regular functions for the limited API.
- Previously, there were defined as macros, but these macros didn't work
- with the limited API which cannot access ``PyThreadState.recursion_depth``
- field. Remove ``_Py_CheckRecursionLimit`` from the stable ABI.
-
-- bpo-38650: The global variable :c:data:`PyStructSequence_UnnamedField` is
- now a constant and refers to a constant string.
-
-- bpo-38540: Fixed possible leak in :c:func:`PyArg_Parse` and similar
- functions for format units ``"es#"`` and ``"et#"`` when the macro
- :c:macro:`PY_SSIZE_T_CLEAN` is not defined.
-
-- bpo-38395: Fix a crash in :class:`weakref.proxy` objects due to incorrect
- lifetime management when calling some associated methods that may delete
- the last reference to object being referenced by the proxy. Patch by Pablo
- Galindo.
-
-- bpo-36389: The ``_PyObject_CheckConsistency()`` function is now also
- available in release mode. For example, it can be used to debug a crash in
- the ``visit_decref()`` function of the GC.
-
-- bpo-38266: Revert the removal of PyThreadState_DeleteCurrent() with
- documentation.
-
-- bpo-38303: Update audioop extension module to use the stable ABI
- (PEP-384). Patch by Tyler Kieft.
-
-- bpo-38234: :c:func:`Py_SetPath` now sets :data:`sys.executable` to the
- program full path (:c:func:`Py_GetProgramFullPath`) rather than to the
- program name (:c:func:`Py_GetProgramName`).
-
-- bpo-38234: Python ignored arguments passed to :c:func:`Py_SetPath`,
- :c:func:`Py_SetPythonHome` and :c:func:`Py_SetProgramName`: fix Python
- initialization to use specified arguments.
-
-- bpo-38205: The :c:func:`Py_UNREACHABLE` macro now calls
- :c:func:`Py_FatalError`.
-
-- bpo-38140: Make dict and weakref offsets opaque for C heap types by
- passing the offsets through PyMemberDef
-
-- bpo-15088: The C function ``PyGen_NeedsFinalizing`` has been removed. It
- was not documented, tested or used anywhere within CPython after the
- implementation of :pep:`442`. Patch by Joannah Nanjekye. (Patch by Joannah
- Nanjekye)
-
-- bpo-36763: Options added by ``PySys_AddXOption()`` are now handled the
- same way than ``PyConfig.xoptions`` and command line ``-X`` options.
-
-- bpo-37926: Fix a crash in ``PySys_SetArgvEx(0, NULL, 0)``.
-
-- bpo-37879: Fix subtype_dealloc to suppress the type decref when the base
- type is a C heap type
-
-- bpo-37645: Add :c:func:`_PyObject_FunctionStr` to get a user-friendly
- string representation of a function-like object. Patch by Jeroen Demeyer.
-
-- bpo-29548: The functions ``PyEval_CallObject``, ``PyEval_CallFunction``,
- ``PyEval_CallMethod`` and ``PyEval_CallObjectWithKeywords`` are
- deprecated. Use :c:func:`PyObject_Call` and its variants instead.
-
-- bpo-37151: ``PyCFunction_Call`` is now a deprecated alias of
- :c:func:`PyObject_Call`.
-
-- bpo-37540: The vectorcall protocol now requires that the caller passes
- only strings as keyword names.
-
-- bpo-37207: The vectorcall protocol is now enabled for ``type`` objects:
- set ``tp_vectorcall`` to a vectorcall function to be used instead of
- ``tp_new`` and ``tp_init`` when calling the class itself.
-
-- bpo-21120: Exclude Python-ast.h, ast.h and asdl.h from the limited API.
-
-- bpo-37483: Add new function ``_PyObject_CallOneArg`` for calling an object
- with one positional argument.
-
-- bpo-36763: Add :func:`PyConfig_SetWideStringList` function.
-
-- bpo-37337: Add fast functions for calling methods:
- :c:func:`_PyObject_VectorcallMethod`, :c:func:`_PyObject_CallMethodNoArgs`
- and :c:func:`_PyObject_CallMethodOneArg`.
-
-- bpo-28805: The :const:`METH_FASTCALL` calling convention has been
- documented.
-
-- bpo-37221: The new function :c:func:`PyCode_NewWithPosOnlyArgs` allows to
- create code objects like :c:func:`PyCode_New`, but with an extra
- *posonlyargcount* parameter for indicating the number of positonal-only
- arguments.
-
-- bpo-37215: Fix dtrace issue introduce by bpo-36842
-
-- bpo-37194: Add a new public :c:func:`PyObject_CallNoArgs` function to the
- C API: call a callable Python object without any arguments. It is the most
- efficient way to call a callback without any argument. On x86-64, for
- example, ``PyObject_CallFunctionObjArgs(func, NULL)`` allocates 960 bytes
- on the stack per call, whereas ``PyObject_CallNoArgs(func)`` only
- allocates 624 bytes per call.
-
-- bpo-37170: Fix the cast on error in
- :c:func:`PyLong_AsUnsignedLongLongMask()`.
-
-- bpo-35381: Convert posixmodule.c statically allocated types
- ``DirEntryType`` and ``ScandirIteratorType`` to heap-allocated types.
-
-- bpo-34331: Use singular/plural noun in error message when instantiating an
- abstract class with non-overriden abstract method(s).
-
-
-What's New in Python 3.8.0 beta 1?
-==================================
-
-*Release date: 2019-06-04*
-
-Security
---------
-
-- bpo-35907: CVE-2019-9948: Avoid file reading by disallowing
- ``local-file://`` and ``local_file://`` URL schemes in
- ``URLopener().open()`` and ``URLopener().retrieve()`` of
- :mod:`urllib.request`.
-
-- bpo-33529: Prevent fold function used in email header encoding from
- entering infinite loop when there are too many non-ASCII characters in a
- header.
-
-- bpo-33164: Updated blake2 implementation which uses secure memset
- implementation provided by platform.
-
-Core and Builtins
------------------
-
-- bpo-35814: Allow unpacking in the right hand side of annotated
- assignments. In particular, ``t: Tuple[int, ...] = x, y, *z`` is now
- allowed.
-
-- bpo-37126: All structseq objects are now tracked by the garbage collector.
- Patch by Pablo Galindo.
-
-- bpo-37122: Make the *co_argcount* attribute of code objects represent the
- total number of positional arguments (including positional-only
- arguments). The value of *co_posonlyargcount* can be used to distinguish
- which arguments are positional only, and the difference (*co_argcount* -
- *co_posonlyargcount*) is the number of positional-or-keyword arguments.
- Patch by Pablo Galindo.
-
-- bpo-20092: Constructors of :class:`int`, :class:`float` and
- :class:`complex` will now use the :meth:`~object.__index__` special
- method, if available and the corresponding method :meth:`~object.__int__`,
- :meth:`~object.__float__` or :meth:`~object.__complex__` is not available.
-
-- bpo-37087: Add native thread ID (TID) support to OpenBSD.
-
-- bpo-26219: Implemented per opcode cache mechanism and ``LOAD_GLOBAL``
- instruction use it. ``LOAD_GLOBAL`` is now about 40% faster. Contributed
- by Yury Selivanov, and Inada Naoki.
-
-- bpo-37072: Fix crash in PyAST_FromNodeObject() when flags is NULL.
-
-- bpo-37029: Freeing a great many small objects could take time quadratic in
- the number of arenas, due to using linear search to keep ``obmalloc.c``'s
- list of usable arenas sorted by order of number of free memory pools.
- This is accomplished without search now, leaving the worst-case time
- linear in the number of arenas. For programs where this quite visibly
- matters (typically with more than 100 thousand small objects alive
- simultaneously), this can greatly reduce the time needed to release their
- memory.
-
-- bpo-26423: Fix possible overflow in ``wrap_lenfunc()`` when ``sizeof(long)
- < sizeof(Py_ssize_t)`` (e.g., 64-bit Windows).
-
-- bpo-37050: Improve the AST for "debug" f-strings, which use '=' to print
- out the source of the expression being evaluated. Delete expr_text from
- the FormattedValue node, and instead use a Constant string node (possibly
- merged with adjacent constant expressions inside the f-string).
-
-- bpo-22385: The `bytes.hex`, `bytearray.hex`, and `memoryview.hex` methods
- as well as the `binascii.hexlify` and `b2a_hex` functions now have the
- ability to include an optional separator between hex bytes. This
- functionality was inspired by MicroPython's hexlify implementation.
-
-- bpo-26836: Add :func:`os.memfd_create`.
-
-- bpo-37032: Added new ``replace()`` method to the code type
- (:class:`types.CodeType`).
-
-- bpo-37007: Implement :func:`socket.if_nameindex()`,
- :func:`socket.if_nametoindex()`, and :func:`socket.if_indextoname()` on
- Windows.
-
-- bpo-36829: :c:func:`PyErr_WriteUnraisable` now creates a traceback object
- if there is no current traceback. Moreover, call
- :c:func:`PyErr_NormalizeException` and :c:func:`PyException_SetTraceback`
- to normalize the exception value. Ignore any error.
-
-- bpo-36878: Only accept text after `# type: ignore` if the first character
- is ASCII. This is to disallow things like `# type: ignoreé`.
-
-- bpo-36878: Store text appearing after a `# type: ignore` comment in the
- AST. For example a type ignore like `# type: ignore[E1000]` will have the
- string `"[E1000]"` stored in its AST node.
-
-- bpo-2180: Treat line continuation at EOF as a ``SyntaxError`` by Anthony
- Sottile.
-
-- bpo-36907: Fix a crash when calling a C function with a keyword dict
- (``f(**kwargs)``) and changing the dict ``kwargs`` while that function is
- running.
-
-- bpo-36946: Fix possible signed integer overflow when handling slices.
-
-- bpo-36826: Add NamedExpression kind support to ast_unparse.c
-
-- bpo-1875: A :exc:`SyntaxError` is now raised if a code blocks that will be
- optimized away (e.g. if conditions that are always false) contains syntax
- errors. Patch by Pablo Galindo.
-
-- bpo-36027: Allow computation of modular inverses via three-argument
- ``pow``: the second argument is now permitted to be negative in the case
- where the first and third arguments are relatively prime.
-
-- bpo-36861: Update the Unicode database to version 12.1.0.
-
-- bpo-28866: Avoid caching attributes of classes which type defines mro() to
- avoid a hard cache invalidation problem.
-
-- bpo-36851: The ``FrameType`` stack is now correctly cleaned up if the
- execution ends with a return and the stack is not empty.
-
-- bpo-34616: The ``compile()`` builtin functions now support the
- ``ast.PyCF_ALLOW_TOP_LEVEL_AWAIT`` flag, which allow to compile sources
- that contains top-level ``await``, ``async with`` or ``async for``. This
- is useful to evaluate async-code from with an already async functions; for
- example in a custom REPL.
-
-- bpo-36842: Implement PEP 578, adding sys.audit, io.open_code and related
- APIs.
-
-- bpo-27639: Correct return type for UserList slicing operations. Patch by
- Michael Blahay, Erick Cervantes, and vaultah
-
-- bpo-36737: Move PyRuntimeState.warnings into per-interpreter state (via
- "module state").
-
-- bpo-36793: Removed ``__str__`` implementations from builtin types
- :class:`bool`, :class:`int`, :class:`float`, :class:`complex` and few
- classes from the standard library. They now inherit ``__str__()`` from
- :class:`object`.
-
-- bpo-36817: Add a ``=`` feature f-strings for debugging. This can precede
- ``!s``, ``!r``, or ``!a``. It produces the text of the expression,
- followed by an equal sign, followed by the repr of the value of the
- expression. So ``f'{3*9+15=}'`` would be equal to the string
- ``'3*9+15=42'``. If ``=`` is specified, the default conversion is set to
- ``!r``, unless a format spec is given, in which case the formatting
- behavior is unchanged, and __format__ will be used.
-
-- bpo-24048: Save the live exception during import.c's ``remove_module()``.
-
-- bpo-27987: pymalloc returns memory blocks aligned by 16 bytes, instead of
- 8 bytes, on 64-bit platforms to conform x86-64 ABI. Recent compilers
- assume this alignment more often. Patch by Inada Naoki.
-
-- bpo-36601: A long-since-meaningless check for ``getpid() == main_pid`` was
- removed from Python's internal C signal handler.
-
-- bpo-36594: Fix incorrect use of ``%p`` in format strings. Patch by Zackery
- Spytz.
-
-- bpo-36045: builtins.help() now prefixes `async` for async functions
-
-- bpo-36084: Add native thread ID (TID) to threading.Thread objects
- (supported platforms: Windows, FreeBSD, Linux, macOS)
-
-- bpo-36035: Added fix for broken symlinks in combination with pathlib
-
-- bpo-35983: Added new trashcan macros to deal with a double deallocation
- that could occur when the `tp_dealloc` of a subclass calls the
- `tp_dealloc` of a base class and that base class uses the trashcan
- mechanism. Patch by Jeroen Demeyer.
-
-- bpo-20602: Do not clear :data:`sys.flags` and :data:`sys.float_info`
- during shutdown. Patch by Zackery Spytz.
-
-- bpo-26826: Expose :func:`copy_file_range` as a low level API in the
- :mod:`os` module.
-
-- bpo-32388: Remove cross-version binary compatibility requirement in
- tp_flags.
-
-- bpo-31862: Port binascii to PEP 489 multiphase initialization. Patch by
- Marcel Plch.
-
-Library
--------
-
-- bpo-37128: Added :func:`math.perm`.
-
-- bpo-37120: Add SSLContext.num_tickets to control the number of TLSv1.3
- session tickets.
-
-- bpo-12202: Fix the error handling in
- :meth:`msilib.SummaryInformation.GetProperty`. Patch by Zackery Spytz.
-
-- bpo-26835: The fcntl module now contains file sealing constants for
- sealing of memfds.
-
-- bpo-29262: Add ``get_origin()`` and ``get_args()`` introspection helpers
- to ``typing`` module.
-
-- bpo-12639: :meth:`msilib.Directory.start_component()` no longer fails if
- *keyfile* is not ``None``.
-
-- bpo-36999: Add the ``asyncio.Task.get_coro()`` method to publicly expose
- the tasks's coroutine object.
-
-- bpo-35246: Make :func:`asyncio.create_subprocess_exec` accept path-like
- arguments.
-
-- bpo-35279: Change default *max_workers* of ``ThreadPoolExecutor`` from
- ``cpu_count() * 5`` to ``min(32, cpu_count() + 4)``. Previous value was
- unreasonably large on many cores machines.
-
-- bpo-37076: :func:`_thread.start_new_thread` now logs uncaught exception
- raised by the function using :func:`sys.unraisablehook`, rather than
- :func:`sys.excepthook`, so the hook gets access to the function which
- raised the exception.
-
-- bpo-33725: On macOS, the :mod:`multiprocessing` module now uses *spawn*
- start method by default.
-
-- bpo-37054: Fix destructor :class:`_pyio.BytesIO` and
- :class:`_pyio.TextIOWrapper`: initialize their ``_buffer`` attribute as
- soon as possible (in the class body), because it's used by ``__del__()``
- which calls ``close()``.
-
-- bpo-37058: PEP 544: Add ``Protocol`` and ``@runtime_checkable`` to the
- ``typing`` module.
-
-- bpo-36933: The functions ``sys.set_coroutine_wrapper`` and
- ``sys.get_coroutine_wrapper`` that were deprecated and marked for removal
- in 3.8 have been removed.
-
-- bpo-37047: Handle late binding and attribute access in
- :class:`unittest.mock.AsyncMock` setup for autospeccing. Document newly
- implemented async methods in :class:`unittest.mock.MagicMock`.
-
-- bpo-37049: PEP 589: Add ``TypedDict`` to the ``typing`` module.
-
-- bpo-37046: PEP 586: Add ``Literal`` to the ``typing`` module.
-
-- bpo-37045: PEP 591: Add ``Final`` qualifier and ``@final`` decorator to
- the ``typing`` module.
-
-- bpo-37035: Don't log OSError based exceptions if a fatal error has
- occurred in asyncio transport. Peer can generate almost any OSError, user
- cannot avoid these exceptions by fixing own code. Errors are still
- propagated to user code, it's just logging them is pointless and pollute
- asyncio logs.
-
-- bpo-37001: :func:`symtable.symtable` now accepts the same input types for
- source code as the built-in :func:`compile` function. Patch by Dino
- Viehland.
-
-- bpo-37028: Implement asyncio REPL
-
-- bpo-37027: Return safe to use proxy socket object from
- transport.get_extra_info('socket')
-
-- bpo-32528: Make asyncio.CancelledError a BaseException.
-
- This will address the common mistake many asyncio users make: an "except
- Exception" clause breaking Tasks cancellation.
-
- In addition to this change, we stop inheriting asyncio.TimeoutError and
- asyncio.InvalidStateError from their concurrent.futures.* counterparts.
- There's no point for these exceptions to share the inheritance chain.
-
-- bpo-1230540: Add a new :func:`threading.excepthook` function which handles
- uncaught :meth:`threading.Thread.run` exception. It can be overridden to
- control how uncaught :meth:`threading.Thread.run` exceptions are handled.
-
-- bpo-36996: Handle :func:`unittest.mock.patch` used as a decorator on async
- functions.
-
-- bpo-37008: Add support for calling :func:`next` with the mock resulting
- from :func:`unittest.mock.mock_open`
-
-- bpo-27737: Allow whitespace only header encoding in ``email.header`` - by
- Batuhan Taskaya
-
-- bpo-36969: PDB command `args` now display positional only arguments.
- Patch contributed by Rémi Lapeyre.
-
-- bpo-36969: PDB command `args` now display keyword only arguments. Patch
- contributed by Rémi Lapeyre.
-
-- bpo-36983: Add missing names to ``typing.__all__``: ``ChainMap``,
- ``ForwardRef``, ``OrderedDict`` - by Anthony Sottile.
-
-- bpo-36972: Add SupportsIndex protocol to the typing module to allow type
- checking to detect classes that can be passed to `hex()`, `oct()` and
- `bin()`.
-
-- bpo-32972: Implement ``unittest.IsolatedAsyncioTestCase`` to help testing
- asyncio-based code.
-
-- bpo-36952: :func:`fileinput.input` and :class:`fileinput.FileInput`
- **bufsize** argument has been removed (was deprecated and ignored since
- Python 3.6), and as a result the **mode** and **openhook** arguments have
- been made keyword-only.
-
-- bpo-36952: Starting with Python 3.3, importing ABCs from
- :mod:`collections` is deprecated, and import should be done from
- :mod:`collections.abc`. Still being able to import from :mod:`collections`
- was marked for removal in 3.8, but has been delayed to 3.9; documentation
- and ``DeprecationWarning`` clarified.
-
-- bpo-36949: Implement __repr__ for WeakSet objects.
-
-- bpo-36948: Fix :exc:`NameError` in
- :meth:`urllib.request.URLopener.retrieve`. Patch by Karthikeyan
- Singaravelan.
-
-- bpo-33524: Fix the folding of email header when the max_line_length is 0
- or None and the header contains non-ascii characters. Contributed by
- Licht Takeuchi (@Licht-T).
-
-- bpo-24564: :func:`shutil.copystat` now ignores :const:`errno.EINVAL` on
- :func:`os.setxattr` which may occur when copying files on filesystems
- without extended attributes support.
-
- Original patch by Giampaolo Rodola, updated by Ying Wang.
-
-- bpo-36888: Python child processes can now access the status of their
- parent process using multiprocessing.process.parent_process
-
-- bpo-36921: Deprecate ``@coroutine`` for sake of ``async def``.
-
-- bpo-25652: Fix bug in ``__rmod__`` of ``UserString`` - by Batuhan Taskaya.
-
-- bpo-36916: Remove a message about an unhandled exception in a task when
- writer.write() is used without await and writer.drain() fails with an
- exception.
-
-- bpo-36889: Introduce :class:`asyncio.Stream` class that merges
- :class:`asyncio.StreamReader` and :class:`asyncio.StreamWriter`
- functionality. :class:`asyncio.Stream` can work in readonly, writeonly and
- readwrite modes. Provide :func:`asyncio.connect`,
- :func:`asyncio.connect_unix`, :func:`asyncio.connect_read_pipe` and
- :func:`asyncio.connect_write_pipe` factories to open
- :class:`asyncio.Stream` connections. Provide :class:`asyncio.StreamServer`
- and :class:`UnixStreamServer` to serve servers with asyncio.Stream API.
- Modify :func:`asyncio.create_subprocess_shell` and
- :func:`asyncio.create_subprocess_exec` to use :class:`asyncio.Stream`
- instead of deprecated :class:`StreamReader` and :class:`StreamWriter`.
- Deprecate :class:`asyncio.StreamReader` and :class:`asyncio.StreamWriter`.
- Deprecate usage of private classes, e.g.
- :class:`asyncio.FlowControlMixing` and
- :class:`asyncio.StreamReaderProtocol` outside of asyncio package.
-
-- bpo-36845: Added validation of integer prefixes to the construction of IP
- networks and interfaces in the ipaddress module.
-
-- bpo-23378: Add an extend action to argparser.
-
-- bpo-36867: Fix a bug making a SharedMemoryManager instance and its parent
- process use two separate resource_tracker processes.
-
-- bpo-23896: Adds a grammar to lib2to3.pygram that contains exec as a
- function not as statement.
-
-- bpo-36895: The function ``time.clock()`` was deprecated in 3.3 in favor of
- ``time.perf_counter()`` and marked for removal in 3.8, it has removed.
-
-- bpo-35545: Fix asyncio discarding IPv6 scopes when ensuring hostname
- resolutions internally
-
-- bpo-36887: Add new function :func:`math.isqrt` to compute integer square
- roots.
-
-- bpo-34632: Introduce the ``importlib.metadata`` module with (provisional)
- support for reading metadata from third-party packages.
-
-- bpo-36878: When using `type_comments=True` in `ast.parse`, treat `# type:
- ignore` followed by a non-alphanumeric character and then arbitrary text
- as a type ignore, instead of requiring nothing but whitespace or another
- comment. This is to permit formations such as `# type: ignore[E1000]`.
-
-- bpo-36778: ``cp65001`` encoding (Windows code page 65001) becomes an alias
- to ``utf_8`` encoding.
-
-- bpo-36867: The multiprocessing.resource_tracker replaces the
- multiprocessing.semaphore_tracker module. Other than semaphores,
- resource_tracker also tracks shared_memory segments.
-
-- bpo-30262: The ``Cache`` and ``Statement`` objects of the :mod:`sqlite3`
- module are not exposed to the user. Patch by Aviv Palivoda.
-
-- bpo-24538: In `shutil.copystat()`, first copy extended file attributes and
- then file permissions, since extended attributes can only be set on the
- destination while it is still writeable.
-
-- bpo-36829: Add new :func:`sys.unraisablehook` function which can be
- overridden to control how "unraisable exceptions" are handled. It is
- called when an exception has occurred but there is no way for Python to
- handle it. For example, when a destructor raises an exception or during
- garbage collection (:func:`gc.collect`).
-
-- bpo-36832: Introducing ``zipfile.Path``, a pathlib-compatible wrapper for
- traversing zip files.
-
-- bpo-36814: Fix an issue where os.posix_spawnp() would incorrectly raise a
- TypeError when file_actions is None.
-
-- bpo-33110: Handle exceptions raised by functions added by
- concurrent.futures add_done_callback correctly when the Future has already
- completed.
-
-- bpo-26903: Limit `max_workers` in `ProcessPoolExecutor` to 61 to work
- around a WaitForMultipleObjects limitation.
-
-- bpo-36813: Fix :class:`~logging.handlers.QueueListener` to call
- ``queue.task_done()`` upon stopping. Patch by Bar Harel.
-
-- bpo-36806: Forbid creation of asyncio stream objects like StreamReader,
- StreamWriter, Process, and their protocols outside of asyncio package.
-
-- bpo-36802: Provide both sync and async calls for StreamWriter.write() and
- StreamWriter.close()
-
-- bpo-36801: Properly handle SSL connection closing in asyncio
- StreamWriter.drain() call.
-
-- bpo-36785: Implement PEP 574 (pickle protocol 5 with out-of-band buffers).
-
-- bpo-36772: functools.lru_cache() can now be used as a straight decorator
- in addition to its existing usage as a function that returns a decorator.
-
-- bpo-6584: Add a :exc:`~gzip.BadGzipFile` exception to the :mod:`gzip`
- module.
-
-- bpo-36748: Optimized write buffering in C implementation of
- ``TextIOWrapper``. Writing ASCII string to ``TextIOWrapper`` with ascii,
- latin1, or utf-8 encoding is about 20% faster. Patch by Inada Naoki.
-
-- bpo-8138: Don't mark ``wsgiref.simple_server.SimpleServer`` as
- multi-threaded since ``wsgiref.simple_server.WSGIServer`` is
- single-threaded.
-
-- bpo-22640: :func:`py_compile.compile` now supports silent mode. Patch by
- Joannah Nanjekye
-
-- bpo-29183: Fix double exceptions in :class:`wsgiref.handlers.BaseHandler`
- by calling its :meth:`~wsgiref.handlers.BaseHandler.close` method only
- when no exception is raised.
-
-- bpo-36548: Improved the repr of regular expression flags.
-
-- bpo-36542: The signature of Python functions can now be overridden by
- specifying the ``__text_signature__`` attribute.
-
-- bpo-36533: Reinitialize logging.Handler locks in forked child processes
- instead of attempting to acquire them all in the parent before forking
- only to be released in the child process. The acquire/release pattern was
- leading to deadlocks in code that has implemented any form of chained
- logging handlers that depend upon one another as the lock acquisition
- order cannot be guaranteed.
-
-- bpo-35252: Throw a TypeError instead of an AssertionError when using an
- invalid type annotation with singledispatch.
-
-- bpo-35900: Allow reduction methods to return a 6-item tuple where the 6th
- item specifies a custom state-setting method that's called instead of the
- regular ``__setstate__`` method.
-
-- bpo-35900: enable custom reduction callback registration for functions and
- classes in _pickle.c, using the new Pickler's attribute
- ``reducer_override``
-
-- bpo-36368: Fix a bug crashing SharedMemoryManager instances in interactive
- sessions after a ctrl-c (KeyboardInterrupt) was sent
-
-- bpo-31904: Fix mmap fail for VxWorks
-
-- bpo-27497: :meth:`csv.DictWriter.writeheader` now returns the return value
- of the underlying :meth:`csv.Writer.writerow` method. Patch contributed by
- Ashish Nitin Patil.
-
-- bpo-36239: Parsing .mo files now ignores comments starting and ending with
- #-#-#-#-#.
-
-- bpo-26707: Enable plistlib to read and write binary plist files that were
- created as a KeyedArchive file. Specifically, this allows the plistlib to
- process 0x80 tokens as UID objects.
-
-- bpo-31904: Add posix module support for VxWorks.
-
-- bpo-35125: Asyncio: Remove inner callback on outer cancellation in shield
-
-- bpo-35721: Fix :meth:`asyncio.SelectorEventLoop.subprocess_exec()` leaks
- file descriptors if ``Popen`` fails and called with
- ``stdin=subprocess.PIPE``. Patch by Niklas Fiekas.
-
-- bpo-31855: :func:`unittest.mock.mock_open` results now respects the
- argument of read([size]). Patch contributed by Rémi Lapeyre.
-
-- bpo-35431: Implement :func:`math.comb` that returns binomial coefficient,
- that computes the number of ways to choose k items from n items without
- repetition and without order. Patch by Yash Aggarwal and Keller Fuchs.
-
-- bpo-26660: Fixed permission errors in
- :class:`~tempfile.TemporaryDirectory` clean up. Previously
- ``TemporaryDirectory.cleanup()`` failed when non-writeable or
- non-searchable files or directories were created inside a temporary
- directory.
-
-- bpo-34271: Add debugging helpers to ssl module. It's now possible to dump
- key material and to trace TLS protocol. The default and stdlib contexts
- also support SSLKEYLOGFILE env var.
-
-- bpo-26467: Added AsyncMock to support using unittest to mock asyncio
- coroutines. Patch by Lisa Roach.
-
-- bpo-33569: dataclasses.InitVar: Exposes the type used to create the init
- var.
-
-- bpo-34424: Fix serialization of messages containing encoded strings when
- the policy.linesep is set to a multi-character string. Patch by Jens
- Troeger.
-
-- bpo-34303: Performance of :func:`functools.reduce` is slightly improved.
- Patch by Sergey Fedoseev.
-
-- bpo-33361: Fix a bug in :class:`codecs.StreamRecoder` where seeking might
- leave old data in a buffer and break subsequent read calls. Patch by Ammar
- Askar.
-
-- bpo-22454: The :mod:`shlex` module now exposes :func:`shlex.join`, the
- inverse of :func:`shlex.split`. Patch by Bo Bayles.
-
-- bpo-31922: :meth:`asyncio.AbstractEventLoop.create_datagram_endpoint`: Do
- not connect UDP socket when broadcast is allowed. This allows to receive
- replies after a UDP broadcast.
-
-- bpo-24882: Change ThreadPoolExecutor to use existing idle threads before
- spinning up new ones.
-
-- bpo-31961: Added support for bytes and path-like objects in
- :func:`subprocess.Popen` on Windows. The *args* parameter now accepts a
- :term:`path-like object` if *shell* is ``False`` and a sequence containing
- bytes and path-like objects. The *executable* parameter now accepts a
- bytes and :term:`path-like object`. The *cwd* parameter now accepts a
- bytes object. Based on patch by Anders Lorentsen.
-
-- bpo-33123: :class:`pathlib.Path.unlink` now accepts a *missing_ok*
- parameter to avoid a :exc:`FileNotFoundError` from being raised. Patch by
- Robert Buchholz.
-
-- bpo-32941: Allow :class:`mmap.mmap` objects to access the madvise() system
- call (through :meth:`mmap.mmap.madvise`).
-
-- bpo-22102: Added support for ZIP files with disks set to 0. Such files are
- commonly created by builtin tools on Windows when use ZIP64 extension.
- Patch by Francisco Facioni.
-
-- bpo-32515: trace.py can now run modules via python3 -m trace -t --module
- module_name
-
-- bpo-32299: Changed :func:`unittest.mock.patch.dict` to return the patched
- dictionary when used as context manager. Patch by Vadim Tsander.
-
-- bpo-27141: Added a ``__copy__()`` to ``collections.UserList`` and
- ``collections.UserDict`` in order to correctly implement shallow copying
- of the objects. Patch by Bar Harel.
-
-- bpo-31829: ``\r``, ``\0`` and ``\x1a`` (end-of-file on Windows) are now
- escaped in protocol 0 pickles of Unicode strings. This allows to load them
- without loss from files open in text mode in Python 2.
-
-- bpo-23395: ``_thread.interrupt_main()`` now avoids setting the Python
- error status if the ``SIGINT`` signal is ignored or not handled by Python.
-
-Documentation
--------------
-
-- bpo-36896: Clarify that some types have unstable constructor signature
- between Python versions.
-
-- bpo-36686: Improve documentation of the stdin, stdout, and stderr
- arguments of the ``asyncio.subprocess_exec`` function to specify which
- values are supported. Also mention that decoding as text is not supported.
-
- Add a few tests to verify that the various values passed to the std*
- arguments actually work.
-
-- bpo-36984: Improve version added references in ``typing`` module - by
- Anthony Sottile.
-
-- bpo-36868: What's new now mentions SSLContext.hostname_checks_common_name
- instead of SSLContext.host_flags.
-
-- bpo-35924: Add a note to the ``curses.addstr()`` documentation to warn
- that multiline strings can cause segfaults because of an ncurses bug.
-
-- bpo-36783: Added C API Documentation for Time_FromTimeAndFold and
- PyDateTime_FromDateAndTimeAndFold as per PEP 495. Patch by Edison
- Abahurire.
-
-- bpo-36797: More of the legacy distutils documentation has been either
- pruned, or else more clearly marked as being retained solely until the
- setuptools documentation covers it independently.
-
-- bpo-22865: Add detail to the documentation on the `pty.spawn` function.
-
-- bpo-35397: Remove deprecation and document urllib.parse.unwrap(). Patch
- contributed by Rémi Lapeyre.
-
-- bpo-32995: Added the context variable in glossary.
-
-- bpo-33519: Clarify that `copy()` is not part of the `MutableSequence` ABC.
-
-- bpo-33482: Make `codecs.StreamRecoder.writelines` take a list of bytes.
-
-- bpo-25735: Added documentation for func factorial to indicate that returns
- integer values
-
-- bpo-20285: Expand object.__doc__ (docstring) to make it clearer. Modify
- pydoc.py so that help(object) lists object methods (for other classes,
- help omits methods of the object base class.)
-
-Tests
------
-
-- bpo-37069: Modify test_coroutines, test_cprofile, test_generators,
- test_raise, test_ssl and test_yield_from to use
- :func:`test.support.catch_unraisable_exception` rather than
- :func:`test.support.captured_stderr`.
-
-- bpo-37098: Fix test_memfd_create on older Linux Kernels.
-
-- bpo-37081: Test with OpenSSL 1.1.1c
-
-- bpo-36829: Add :func:`test.support.catch_unraisable_exception`: context
- manager catching unraisable exception using :func:`sys.unraisablehook`.
-
-- bpo-36915: The main regrtest process now always removes all temporary
- directories of worker processes even if they crash or if they are killed
- on KeyboardInterrupt (CTRL+c).
-
-- bpo-36719: "python3 -m test -jN ..." now continues the execution of next
- tests when a worker process crash (CHILD_ERROR state). Previously, the
- test suite stopped immediately. Use --failfast to stop at the first error.
-
-- bpo-36816: Update Lib/test/selfsigned_pythontestdotnet.pem to match
- self-signed.pythontest.net's new TLS certificate.
-
-- bpo-35925: Skip httplib and nntplib networking tests when they would
- otherwise fail due to a modern OS or distro with a default OpenSSL policy
- of rejecting connections to servers with weak certificates.
-
-- bpo-36782: Add tests for several C API functions in the :mod:`datetime`
- module. Patch by Edison Abahurire.
-
-- bpo-36342: Fix test_multiprocessing in test_venv if platform lacks
- functioning sem_open.
-
-Build
------
-
-- bpo-36721: To embed Python into an application, a new ``--embed`` option
- must be passed to ``python3-config --libs --embed`` to get ``-lpython3.8``
- (link the application to libpython). To support both 3.8 and older, try
- ``python3-config --libs --embed`` first and fallback to ``python3-config
- --libs`` (without ``--embed``) if the previous command fails.
-
- Add a pkg-config ``python-3.8-embed`` module to embed Python into an
- application: ``pkg-config python-3.8-embed --libs`` includes
- ``-lpython3.8``. To support both 3.8 and older, try ``pkg-config
- python-X.Y-embed --libs`` first and fallback to ``pkg-config python-X.Y
- --libs`` (without ``--embed``) if the previous command fails (replace
- ``X.Y`` with the Python version).
-
- On the other hand, ``pkg-config python3.8 --libs`` no longer contains
- ``-lpython3.8``. C extensions must not be linked to libpython (except on
- Android, case handled by the script); this change is backward incompatible
- on purpose.
-
-- bpo-36786: "make install" now runs compileall in parallel.
-
-Windows
--------
-
-- bpo-36965: include of STATUS_CONTROL_C_EXIT without depending on MSC
- compiler
-
-- bpo-35926: Update to OpenSSL 1.1.1b for Windows.
-
-- bpo-29883: Add Windows support for UDP transports for the Proactor Event
- Loop. Patch by Adam Meily.
-
-- bpo-33407: The :c:macro:`Py_DEPRECATED()` macro has been implemented for
- MSVC.
-
-macOS
------
-
-- bpo-36231: Support building Python on macOS without /usr/include
- installed. As of macOS 10.14, system header files are only available
- within an SDK provided by either the Command Line Tools or the Xcode app.
-
-IDLE
-----
-
-- bpo-35610: Replace now redundant .context_use_ps1 with .prompt_last_line.
- This finishes change started in bpo-31858.
-
-- bpo-37038: Make idlelib.run runnable; add test clause.
-
-- bpo-36958: Print any argument other than None or int passed to SystemExit
- or sys.exit().
-
-- bpo-36807: When saving a file, call os.fsync() so bits are flushed to e.g.
- USB drive.
-
-- bpo-32411: In browser.py, remove extraneous sorting by line number since
- dictionary was created in line number order.
-
-Tools/Demos
------------
-
-- bpo-37053: Handle strings like u"bar" correctly in
- Tools/parser/unparse.py. Patch by Chih-Hsuan Yen.
-
-C API
------
-
-- bpo-36763: Implement the :pep:`587` "Python Initialization Configuration".
-
-- bpo-36379: Fix crashes when attempting to use the *modulo* parameter when
- ``__ipow__`` is implemented in C.
-
-- bpo-37107: Update :c:func:`PyObject_CallMethodObjArgs` and
- ``_PyObject_CallMethodIdObjArgs`` to use ``_PyObject_GetMethod`` to avoid
- creating a bound method object in many cases. Patch by Michael J.
- Sullivan.
-
-- bpo-36974: Implement :pep:`590`: Vectorcall: a fast calling protocol for
- CPython. This is a new protocol to optimize calls of custom callable
- objects.
-
-- bpo-36763: ``Py_Main()`` now returns the exitcode rather than calling
- ``Py_Exit(exitcode)`` when calling ``PyErr_Print()`` if the current
- exception type is ``SystemExit``.
-
-- bpo-36922: Add new type flag ``Py_TPFLAGS_METHOD_DESCRIPTOR`` for objects
- behaving like unbound methods. These are objects supporting the
- optimization given by the ``LOAD_METHOD``/``CALL_METHOD`` opcodes. See PEP
- 590.
-
-- bpo-36728: The :c:func:`PyEval_ReInitThreads` function has been removed
- from the C API. It should not be called explicitly: use
- :c:func:`PyOS_AfterFork_Child` instead.
-
-
-What's New in Python 3.8.0 alpha 4?
-===================================
-
-*Release date: 2019-05-06*
-
-Security
---------
-
-- bpo-36742: Fixes mishandling of pre-normalization characters in
- urlsplit().
-
-- bpo-30458: Address CVE-2019-9740 by disallowing URL paths with embedded
- whitespace or control characters through into the underlying http client
- request. Such potentially malicious header injection URLs now cause an
- http.client.InvalidURL exception to be raised.
-
-- bpo-35755: :func:`shutil.which` now uses ``os.confstr("CS_PATH")`` if
- available and if the :envvar:`PATH` environment variable is not set.
- Remove also the current directory from :data:`posixpath.defpath`. On Unix,
- :func:`shutil.which` and the :mod:`subprocess` module no longer search the
- executable in the current directory if the :envvar:`PATH` environment
- variable is not set.
-
-Core and Builtins
------------------
-
-- bpo-36722: In debug build, import now also looks for C extensions compiled
- in release mode and for C extensions compiled in the stable ABI.
-
-- bpo-32849: Fix Python Initialization code on FreeBSD to detect properly
- when stdin file descriptor (fd 0) is invalid.
-
-- bpo-36623: Remove parser headers and related function declarations that
- lack implementations after the removal of pgen.
-
-- bpo-20180: ``dict.pop()`` is now up to 33% faster thanks to Argument
- Clinic. Patch by Inada Naoki.
-
-- bpo-36611: Debug memory allocators: disable serialno field by default from
- debug hooks on Python memory allocators to reduce the memory footprint by
- 5%. Enable :mod:`tracemalloc` to get the traceback where a memory block
- has been allocated when a fatal memory error is logged to decide where to
- put a breakpoint. Compile Python with ``PYMEM_DEBUG_SERIALNO`` defined to
- get back the field.
-
-- bpo-36588: On AIX, :attr:`sys.platform` doesn't contain the major version
- anymore. Always return ``'aix'``, instead of ``'aix3'`` .. ``'aix7'``.
- Since older Python versions include the version number, it is recommended
- to always use ``sys.platform.startswith('aix')``. Contributed by M. Felt.
-
-- bpo-36549: Change str.capitalize to use titlecase for the first character
- instead of uppercase.
-
-- bpo-36540: Implement :pep:`570` (Python positional-only parameters). Patch
- by Pablo Galindo.
-
-- bpo-36475: :c:func:`PyEval_AcquireLock` and :c:func:`PyEval_AcquireThread`
- now terminate the current thread if called while the interpreter is
- finalizing, making them consistent with :c:func:`PyEval_RestoreThread`,
- :c:func:`Py_END_ALLOW_THREADS`, and :c:func:`PyGILState_Ensure`.
-
-- bpo-36504: Fix signed integer overflow in _ctypes.c's
- ``PyCArrayType_new()``.
-
-- bpo-20844: Fix running script with encoding cookie and LF line ending may
- fail on Windows.
-
-- bpo-24214: Fixed support of the surrogatepass error handler in the UTF-8
- incremental decoder.
-
-- bpo-36452: Changing ``dict`` keys during iteration of the dict itself,
- ``keys()``, ``values()``, or ``items()`` will now be detected in certain
- corner cases where keys are deleted/added so that the number of keys isn't
- changed. A `RuntimeError` will be raised after ``len(dict)`` iterations.
- Contributed by Thomas Perl.
-
-- bpo-36459: Fix a possible double ``PyMem_FREE()`` due to tokenizer.c's
- ``tok_nextc()``.
-
-- bpo-36433: Fixed TypeError message in classmethoddescr_call.
-
-- bpo-36430: Fix a possible reference leak in :func:`itertools.count`.
-
-- bpo-36440: Include node names in ``ParserError`` messages, instead of
- numeric IDs. Patch by A. Skrobov.
-
-- bpo-36143: Regenerate :mod:`keyword` from the Grammar and Tokens file
- using pgen. Patch by Pablo Galindo.
-
-- bpo-18372: Add missing :c:func:`PyObject_GC_Track` calls in the
- :mod:`pickle` module. Patch by Zackery Spytz.
-
-Library
--------
-
-- bpo-35952: Fix pythoninfo when the compiler is missing.
-
-- bpo-28238: The ``.find*()`` methods of xml.etree.ElementTree can now
- search for wildcards like ``{*}tag`` and ``{ns}*`` that match a tag in any
- namespace or all tags in a namespace. Patch by Stefan Behnel.
-
-- bpo-26978: `pathlib.path.link_to()` is now implemented. It creates a hard
- link pointing to a path.
-
-- bpo-1613500: :class:`fileinput.FileInput` now uses the input file mode to
- correctly set the output file mode (previously it was hardcoded to
- ``'w'``) when ``inplace=True`` is passed to its constructor.
-
-- bpo-36734: Fix compilation of ``faulthandler.c`` on HP-UX. Initialize
- ``stack_t current_stack`` to zero using ``memset()``.
-
-- bpo-13611: The xml.etree.ElementTree packages gained support for C14N 2.0
- serialisation. Patch by Stefan Behnel.
-
-- bpo-36669: Add missing matrix multiplication operator support to
- weakref.proxy.
-
-- bpo-36676: The XMLParser() in xml.etree.ElementTree provides namespace
- prefix context to the parser target if it defines the callback methods
- "start_ns()" and/or "end_ns()". Patch by Stefan Behnel.
-
-- bpo-36673: The TreeBuilder and XMLPullParser in xml.etree.ElementTree
- gained support for parsing comments and processing instructions. Patch by
- Stefan Behnel.
-
-- bpo-36650: The C version of functools.lru_cache() was treating calls with
- an empty ``**kwargs`` dictionary as being distinct from calls with no
- keywords at all. This did not result in an incorrect answer, but it did
- trigger an unexpected cache miss.
-
-- bpo-28552: Fix :mod:`distutils.sysconfig` if :data:`sys.executable` is
- ``None`` or an empty string: use :func:`os.getcwd` to initialize
- ``project_base``. Fix also the distutils build command: don't use
- :data:`sys.executable` if it is ``None`` or an empty string.
-
-- bpo-35755: :func:`shutil.which` and
- :func:`distutils.spawn.find_executable` now use ``os.confstr("CS_PATH")``
- if available instead of :data:`os.defpath`, if the ``PATH`` environment
- variable is not set. Moreover, don't use ``os.confstr("CS_PATH")`` nor
- :data:`os.defpath` if the ``PATH`` environment variable is set to an empty
- string.
-
-- bpo-25430: improve performance of ``IPNetwork.__contains__()``
-
-- bpo-30485: Path expressions in xml.etree.ElementTree can now avoid
- explicit namespace prefixes for tags (or the "{namespace}tag" notation) by
- passing a default namespace with an empty string prefix.
-
-- bpo-36613: Fix :mod:`asyncio` wait() not removing callback if exception
-
-- bpo-36598: Fix ``isinstance`` check for Mock objects with spec when the
- code is executed under tracing. Patch by Karthikeyan Singaravelan.
-
-- bpo-18748: In development mode (:option:`-X` ``dev``) and in debug build,
- the :class:`io.IOBase` destructor now logs ``close()`` exceptions. These
- exceptions are silent by default in release mode.
-
-- bpo-36575: The ``_lsprof`` module now uses internal timer same to
- ``time.perf_counter()`` by default. ``gettimeofday(2)`` was used on Unix.
- New timer has better resolution on most Unix platforms and timings are no
- longer impacted by system clock updates since ``perf_counter()`` is
- monotonic. Patch by Inada Naoki.
-
-- bpo-33461: ``json.loads`` now emits ``DeprecationWarning`` when
- ``encoding`` option is specified. Patch by Matthias Bussonnier.
-
-- bpo-36559: The random module now prefers the lean internal _sha512 module
- over hashlib for seed(version=2) to optimize import time.
-
-- bpo-17561: Set backlog=None as the default for socket.create_server.
-
-- bpo-34373: Fix :func:`time.mktime` error handling on AIX for year before
- 1970.
-
-- bpo-36232: Improve error message when trying to open existing DBM database
- that actually doesn't exist. Patch by Marco Rougeth.
-
-- bpo-36546: Add statistics.quantiles()
-
-- bpo-36050: Optimized ``http.client.HTTPResponse.read()`` for large
- response. Patch by Inada Naoki.
-
-- bpo-36522: If *debuglevel* is set to >0 in :mod:`http.client`, print all
- values for headers with multiple values for the same header name. Patch by
- Matt Houglum.
-
-- bpo-36492: Deprecated passing required arguments like *func* as keyword
- arguments in functions which should accept arbitrary keyword arguments and
- pass them to other function. Arbitrary keyword arguments (even with names
- "self" and "func") can now be passed to these functions if the required
- arguments are passed as positional arguments.
-
-- bpo-27181: Add statistics.geometric_mean().
-
-- bpo-30427: ``os.path.normcase()`` relies on ``os.fspath()`` to check the
- type of its argument. Redundant checks have been removed from its
- ``posixpath.normcase()`` and ``ntpath.normcase()`` implementations. Patch
- by Wolfgang Maier.
-
-- bpo-36385: Stop rejecting IPv4 octets for being ambiguously octal. Leading
- zeros are ignored, and no longer are assumed to specify octal octets.
- Octets are always decimal numbers. Octets must still be no more than three
- digits, including leading zeroes.
-
-- bpo-36434: Errors during writing to a ZIP file no longer prevent to
- properly close it.
-
-- bpo-36407: Fixed wrong indentation writing for CDATA section in
- xml.dom.minidom. Patch by Vladimir Surjaninov.
-
-- bpo-36326: inspect.getdoc() can now find docstrings for member objects
- when __slots__ is a dictionary.
-
-- bpo-36366: Calling ``stop()`` on an unstarted or stopped
- :func:`unittest.mock.patch` object will now return `None` instead of
- raising :exc:`RuntimeError`, making the method idempotent. Patch by
- Karthikeyan Singaravelan.
-
-- bpo-36348: The :meth:`imap.IMAP4.logout` method no longer ignores silently
- arbitrary exceptions.
-
-- bpo-31904: Add time module support and fix test_time faiures for VxWorks.
-
-- bpo-36227: Added support for keyword arguments `default_namespace` and
- `xml_declaration` in functions ElementTree.tostring() and
- ElementTree.tostringlist().
-
-- bpo-36004: Added new alternate constructors
- :meth:`datetime.date.fromisocalendar` and
- :meth:`datetime.datetime.fromisocalendar`, which construct date objects
- from ISO year, week number and weekday; these are the inverse of each
- class's ``isocalendar`` method. Patch by Paul Ganssle.
-
-- bpo-35936: :mod:`modulefinder` no longer depends on the deprecated
- :mod:`imp` module, and the initializer for
- :class:`modulefinder.ModuleFinder` now has immutable default arguments.
- Patch by Brandt Bucher.
-
-- bpo-35376: :mod:`modulefinder` correctly handles modules that have the
- same name as a bad package. Patch by Brandt Bucher.
-
-- bpo-17396: :mod:`modulefinder` no longer crashes when encountering syntax
- errors in followed imports. Patch by Brandt Bucher.
-
-- bpo-35934: Added :meth:`~socket.create_server()` and
- :meth:`~socket.has_dualstack_ipv6()` convenience functions to automate the
- necessary tasks usually involved when creating a server socket, including
- accepting both IPv4 and IPv6 connections on the same socket. (Contributed
- by Giampaolo Rodola in :issue:`17561`.)
-
-- bpo-23078: Add support for :func:`classmethod` and :func:`staticmethod` to
- :func:`unittest.mock.create_autospec`. Initial patch by Felipe Ochoa.
-
-- bpo-35416: Fix potential resource warnings in distutils. Patch by Mickaël
- Schoentgen.
-
-- bpo-25451: Add transparency methods to :class:`tkinter.PhotoImage`. Patch
- by Zackery Spytz.
-
-- bpo-35082: Don't return deleted attributes when calling dir on a
- :class:`unittest.mock.Mock`.
-
-- bpo-34547: :class:`wsgiref.handlers.BaseHandler` now handles abrupt client
- connection terminations gracefully. Patch by Petter Strandmark.
-
-- bpo-31658: :func:`xml.sax.parse` now supports :term:`path-like <path-like
- object>`. Patch by Mickaël Schoentgen.
-
-- bpo-34139: Remove stale unix datagram socket before binding
-
-- bpo-33530: Implemented Happy Eyeballs in `asyncio.create_connection()`.
- Added two new arguments, *happy_eyeballs_delay* and *interleave*, to
- specify Happy Eyeballs behavior.
-
-- bpo-33291: Do not raise AttributeError when calling the inspect functions
- isgeneratorfunction, iscoroutinefunction, isasyncgenfunction on a method
- created from an arbitrary callable. Instead, return False.
-
-- bpo-31310: Fix the multiprocessing.semaphore_tracker so it is reused by
- child processes
-
-- bpo-31292: Fix ``setup.py check --restructuredtext`` for files containing
- ``include`` directives.
-
-Documentation
--------------
-
-- bpo-36625: Remove obsolete comments from docstrings in fractions.Fraction
-
-- bpo-30840: Document relative imports
-
-- bpo-36523: Add docstring for io.IOBase.writelines().
-
-- bpo-36425: New documentation translation: `Simplified Chinese
- <https://docs.python.org/zh-cn/>`_.
-
-- bpo-36345: Avoid the duplication of code from ``Tools/scripts/serve.py``
- in using the :rst:dir:`literalinclude` directive for the basic
- wsgiref-based web server in the documentation of :mod:`wsgiref`.
- Contributed by Stéphane Wirtel.
-
-- bpo-36345: Using the code of the ``Tools/scripts/serve.py`` script as an
- example in the :mod:`wsgiref` documentation. Contributed by Stéphane
- Wirtel.
-
-- bpo-36157: Added Documention for PyInterpreterState_Main().
-
-- bpo-33043: Updates the docs.python.org page with the addition of a
- 'Contributing to Docs' link at the end of the page (between 'Reporting
- Bugs' and 'About Documentation'). Updates the 'Found a Bug' page with
- additional links and information in the Documentation Bugs section.
-
-- bpo-35581: @typing.type_check_only now allows type stubs to mark functions
- and classes not available during runtime.
-
-- bpo-33832: Add glossary entry for 'magic method'.
-
-- bpo-32913: Added re.Match.groupdict example to regex HOWTO.
-
-Tests
------
-
-- bpo-36719: regrtest now always detects uncollectable objects. Previously,
- the check was only enabled by ``--findleaks``. The check now also works
- with ``-jN/--multiprocess N``. ``--findleaks`` becomes a deprecated alias
- to ``--fail-env-changed``.
-
-- bpo-36725: When using multiprocessing mode (-jN), regrtest now better
- reports errors if a worker process fails, and it exits immediately on a
- worker thread failure or when interrupted.
-
-- bpo-36454: Change test_time.test_monotonic() to test only the lower bound
- of elapsed time after a sleep command rather than the upper bound. This
- prevents unnecessary test failures on slow buildbots. Patch by Victor
- Stinner.
-
-- bpo-32424: Improve test coverage for xml.etree.ElementTree. Patch by
- Gordon P. Hemsley.
-
-- bpo-32424: Fix typo in test_cyclic_gc() test for xml.etree.ElementTree.
- Patch by Gordon P. Hemsley.
-
-- bpo-36635: Add a new :mod:`_testinternalcapi` module to test the internal
- C API.
-
-- bpo-36629: Fix ``test_imap4_host_default_value()`` of ``test_imaplib``:
- catch also :data:`errno.ENETUNREACH` error.
-
-- bpo-36611: Fix ``test_sys.test_getallocatedblocks()`` when
- :mod:`tracemalloc` is enabled.
-
-- bpo-36560: Fix reference leak hunting in regrtest: compute also deltas (of
- reference count, allocated memory blocks, file descriptor count) during
- warmup, to ensure that everything is initialized before starting to hunt
- reference leaks.
-
-- bpo-36565: Fix reference hunting (``python3 -m test -R 3:3``) when Python
- has no built-in abc module.
-
-- bpo-31904: Port test_resource to VxWorks: skip tests cases setting
- RLIMIT_FSIZE and RLIMIT_CPU.
-
-- bpo-31904: Fix test_tabnanny on VxWorks: adjust ENOENT error message.
-
-- bpo-36436: Fix ``_testcapi.pymem_buffer_overflow()``: handle memory
- allocation failure.
-
-- bpo-31904: Fix test_utf8_mode on VxWorks: Python always use UTF-8 on
- VxWorks.
-
-- bpo-36341: Fix tests that may fail with PermissionError upon calling
- bind() on AF_UNIX sockets.
-
-Build
------
-
-- bpo-36747: Remove the stale scriptsinstall Makefile target.
-
-- bpo-21536: On Unix, C extensions are no longer linked to libpython except
- on Android and Cygwin.
-
- It is now possible for a statically linked Python to load a C extension
- built using a shared library Python.
-
- When Python is embedded, ``libpython`` must not be loaded with
- ``RTLD_LOCAL``, but ``RTLD_GLOBAL`` instead. Previously, using
- ``RTLD_LOCAL``, it was already not possible to load C extensions which
- were not linked to ``libpython``, such as C extensions of the standard
- library built by the ``*shared*`` section of ``Modules/Setup``.
-
- distutils, python-config and python-config.py have been modified.
-
-- bpo-36707: ``./configure --with-pymalloc`` no longer adds the ``m`` flag
- to SOABI (sys.implementation.cache_tag). Enabling or disabling pymalloc
- has no impact on the ABI.
-
-- bpo-36635: Change ``PyAPI_FUNC(type)``, ``PyAPI_DATA(type)`` and
- ``PyMODINIT_FUNC`` macros of ``pyport.h`` when ``Py_BUILD_CORE_MODULE`` is
- defined. The ``Py_BUILD_CORE_MODULE`` define must be now be used to build
- a C extension as a dynamic library accessing Python internals: export the
- PyInit_xxx() function in DLL exports on Windows.
-
-- bpo-31904: Don't build the ``_crypt`` extension on VxWorks.
-
-- bpo-36618: Add ``-fmax-type-align=8`` to CFLAGS when clang compiler is
- detected. The pymalloc memory allocator aligns memory on 8 bytes. On
- x86-64, clang expects alignment on 16 bytes by default and so uses MOVAPS
- instruction which can lead to segmentation fault. Instruct clang that
- Python is limited to alignment on 8 bytes to use MOVUPS instruction
- instead: slower but don't trigger a SIGSEGV if the memory is not aligned
- on 16 bytes. Sadly, the flag must be added to ``CFLAGS`` and not just
- ``CFLAGS_NODIST``, since third party C extensions can have the same issue.
-
-- bpo-36605: ``make tags`` and ``make TAGS`` now also parse
- ``Modules/_io/*.c`` and ``Modules/_io/*.h``.
-
-- bpo-36465: Release builds and debug builds are now ABI compatible:
- defining the ``Py_DEBUG`` macro no longer implies the ``Py_TRACE_REFS``
- macro, which introduces the only ABI incompatibility. The
- ``Py_TRACE_REFS`` macro, which adds the :func:`sys.getobjects` function
- and the :envvar:`PYTHONDUMPREFS` environment variable, can be set using
- the new ``./configure --with-trace-refs`` build option.
-
-- bpo-36577: setup.py now correctly reports missing OpenSSL headers and
- libraries again.
-
-- bpo-36544: Fix regression introduced in bpo-36146 refactoring setup.py
-
-- bpo-36508: ``python-config --ldflags`` no longer includes flags of the
- ``LINKFORSHARED`` variable. The ``LINKFORSHARED`` variable must only be
- used to build executables.
-
-- bpo-36503: Remove references to "aix3" and "aix4". Patch by M. Felt.
-
-Windows
--------
-
-- bpo-35920: Added platform.win32_edition() and platform.win32_is_iot().
- Added support for cross-compiling packages for Windows ARM32. Skip tests
- that are not expected to work on Windows IoT Core ARM32.
-
-- bpo-36649: Remove trailing spaces for registry keys when installed via the
- Store.
-
-- bpo-34144: Fixed activate.bat to correctly update codepage when chcp.com
- returns dots in output. Patch by Lorenz Mende.
-
-- bpo-36509: Added preset-iot layout for Windows IoT ARM containers. This
- layout doesn't contain UI components like tkinter or IDLE. It also doesn't
- contain files to support on-target builds since Windows ARM32 builds must
- be cross-compiled when using MSVC.
-
-- bpo-35941: enum_certificates function of the ssl module now returns
- certificates from all available certificate stores inside windows in a
- query instead of returning only certificates from the system wide
- certificate store. This includes certificates from these certificate
- stores: local machine, local machine enterprise, local machine group
- policy, current user, current user group policy, services, users.
- ssl.enum_crls() function is changed in the same way to return all
- certificate revocation lists inside the windows certificate revocation
- list stores.
-
-- bpo-36441: Fixes creating a venv when debug binaries are installed.
-
-- bpo-36085: Enable better DLL resolution on Windows by using safe DLL
- search paths and adding :func:`os.add_dll_directory`.
-
-- bpo-36010: Add the venv standard library module to the nuget distribution
- for Windows.
-
-- bpo-29515: Add the following socket module constants on Windows:
- IPPROTO_AH IPPROTO_CBT IPPROTO_DSTOPTS IPPROTO_EGP IPPROTO_ESP
- IPPROTO_FRAGMENT IPPROTO_GGP IPPROTO_HOPOPTS IPPROTO_ICLFXBM
- IPPROTO_ICMPV6 IPPROTO_IDP IPPROTO_IGMP IPPROTO_IGP IPPROTO_IPV4
- IPPROTO_IPV6 IPPROTO_L2TP IPPROTO_MAX IPPROTO_ND IPPROTO_NONE IPPROTO_PGM
- IPPROTO_PIM IPPROTO_PUP IPPROTO_RDP IPPROTO_ROUTING IPPROTO_SCTP
- IPPROTO_ST
-
-- bpo-35947: Added current version of libffi to cpython-source-deps. Change
- _ctypes to use current version of libffi on Windows.
-
-- bpo-34060: Report system load when running test suite on Windows. Patch by
- Ammar Askar. Based on prior work by Jeremy Kloth.
-
-- bpo-31512: With the Windows 10 Creators Update, non-elevated users can now
- create symlinks as long as the computer has Developer Mode enabled.
-
-macOS
------
-
-- bpo-34602: Avoid failures setting macOS stack resource limit with
- resource.setrlimit. This reverts an earlier fix for bpo-18075 which forced
- a non-default stack size when building the interpreter executable on
- macOS.
-
-IDLE
-----
-
-- bpo-36429: Fix starting IDLE with pyshell. Add idlelib.pyshell alias at
- top; remove pyshell alias at bottom. Remove obsolete __name__=='__main__'
- command.
-
-Tools/Demos
------------
-
-- bpo-14546: Fix the argument handling in Tools/scripts/lll.py.
-
-C API
------
-
-- bpo-36763: Fix memory leak in :c:func:`Py_SetStandardStreamEncoding`:
- release memory if the function is called twice.
-
-- bpo-36641: :c:expr:`PyDoc_VAR(name)` and :c:expr:`PyDoc_STRVAR(name,str)`
- now create ``static const char name[]`` instead of ``static char name[]``.
- Patch by Inada Naoki.
-
-- bpo-36389: Change the value of ``CLEANBYTE``, ``DEADDYTE`` and
- ``FORBIDDENBYTE`` internal constants used by debug hooks on Python memory
- allocators (:c:func:`PyMem_SetupDebugHooks` function). Byte patterns
- ``0xCB``, ``0xDB`` and ``0xFB`` have been replaced with ``0xCD``, ``0xDD``
- and ``0xFD`` to use the same values than Windows CRT debug ``malloc()``
- and ``free()``.
-
-- bpo-36443: Since Python 3.7.0, calling :c:func:`Py_DecodeLocale` before
- :c:func:`Py_Initialize` produces mojibake if the ``LC_CTYPE`` locale is
- coerced and/or if the UTF-8 Mode is enabled by the user configuration. The
- LC_CTYPE coercion and UTF-8 Mode are now disabled by default to fix the
- mojibake issue. They must now be enabled explicitly (opt-in) using the new
- :c:func:`_Py_PreInitialize` API with ``_PyPreConfig``.
-
-- bpo-36025: Fixed an accidental change to the datetime C API where the
- arguments to the :c:func:`PyDate_FromTimestamp` function were incorrectly
- interpreted as a single timestamp rather than an arguments tuple, which
- causes existing code to start raising :exc:`TypeError`. The
- backwards-incompatible change was only present in alpha releases of Python
- 3.8. Patch by Paul Ganssle.
-
-- bpo-35810: Modify ``PyObject_Init`` to correctly increase the refcount of
- heap- allocated Type objects. Also fix the refcounts of the heap-allocated
- types that were either doing this manually or not decreasing the type's
- refcount in tp_dealloc
-
-
-What's New in Python 3.8.0 alpha 3?
-===================================
-
-*Release date: 2019-03-25*
-
-Security
---------
-
-- bpo-36216: Changes urlsplit() to raise ValueError when the URL contains
- characters that decompose under IDNA encoding (NFKC-normalization) into
- characters that affect how the URL is parsed.
-
-- bpo-35121: Don't send cookies of domain A without Domain attribute to
- domain B when domain A is a suffix match of domain B while using a
- cookiejar with :class:`http.cookiejar.DefaultCookiePolicy` policy. Patch
- by Karthikeyan Singaravelan.
-
-Core and Builtins
------------------
-
-- bpo-36421: Fix a possible double decref in _ctypes.c's
- ``PyCArrayType_new()``.
-
-- bpo-36412: Fix a possible crash when creating a new dictionary.
-
-- bpo-36398: Fix a possible crash in ``structseq_repr()``.
-
-- bpo-36256: Fix bug in parsermodule when parsing a state in a DFA that has
- two or more arcs with labels of the same type. Patch by Pablo Galindo.
-
-- bpo-36365: repr(structseq) is no longer limited to 512 bytes.
-
-- bpo-36374: Fix a possible null pointer dereference in
- ``merge_consts_recursive()``. Patch by Zackery Spytz.
-
-- bpo-36236: At Python initialization, the current directory is no longer
- prepended to :data:`sys.path` if it has been removed.
-
-- bpo-36352: Python initialization now fails with an error, rather than
- silently truncating paths, if a path is too long.
-
-- bpo-36301: Python initialization now fails if decoding ``pybuilddir.txt``
- configuration file fails at startup.
-
-- bpo-36333: Fix leak in _PyRuntimeState_Fini. Contributed by Stéphane
- Wirtel.
-
-- bpo-36332: The builtin :func:`compile` can now handle AST objects that
- contain assignment expressions. Patch by Pablo Galindo.
-
-- bpo-36282: Improved error message for too much positional arguments in
- some builtin functions.
-
-- bpo-30040: New empty dict uses fewer memory for now. It used more memory
- than empty dict created by ``dict.clear()``. And empty dict creation and
- deletion is about 2x faster. Patch by Inada Naoki.
-
-- bpo-36262: Fix an unlikely memory leak on conversion from string to float
- in the function ``_Py_dg_strtod()`` used by ``float(str)``,
- ``complex(str)``, :func:`pickle.load`, :func:`marshal.load`, etc.
-
-- bpo-36252: Update Unicode databases to version 12.0.0.
-
-- bpo-36218: Fix a segfault occurring when sorting a list of heterogeneous
- values. Patch contributed by Rémi Lapeyre and Elliot Gorokhovsky.
-
-- bpo-36188: Cleaned up left-over vestiges of Python 2 unbound method
- handling in method objects and documentation. Patch by Martijn Pieters
-
-- bpo-36124: Add a new interpreter-specific dict and expose it in the C-API
- via PyInterpreterState_GetDict(). This parallels PyThreadState_GetDict().
- However, extension modules should continue using PyModule_GetState() for
- their own internal per-interpreter state.
-
-- bpo-35975: Add a ``feature_version`` flag to ``ast.parse()`` (documented)
- and ``compile()`` (hidden) that allows tweaking the parser to support
- older versions of the grammar. In particular, if ``feature_version`` is 5
- or 6, the hacks for the ``async`` and ``await`` keyword from PEP 492 are
- reinstated. (For 7 or higher, these are unconditionally treated as
- keywords, but they are still special tokens rather than ``NAME`` tokens
- that the parser driver recognizes.)
-
-- bpo-31904: Use UTF-8 as the system encoding on VxWorks.
-
-- bpo-36048: The :meth:`~object.__index__` special method will be used
- instead of :meth:`~object.__int__` for implicit conversion of Python
- numbers to C integers. Using the ``__int__()`` method in implicit
- conversions has been deprecated.
-
-- bpo-35808: Retire pgen and use a modified version of pgen2 to generate the
- parser. Patch by Pablo Galindo.
-
-Library
--------
-
-- bpo-36401: The class documentation created by pydoc now has a separate
- section for readonly properties.
-
-- bpo-36320: The typing.NamedTuple() class has deprecated the _field_types
- attribute in favor of the __annotations__ attribute which carried the same
- information. Also, both attributes were converted from OrderedDict to a
- regular dict.
-
-- bpo-34745: Fix :mod:`asyncio` ssl memory issues caused by circular
- references
-
-- bpo-36324: Add method to statistics.NormalDist for computing the inverse
- cumulative normal distribution.
-
-- bpo-36321: collections.namedtuple() misspelled the name of an attribute.
- To be consistent with typing.NamedTuple, the attribute name should have
- been "_field_defaults" instead of "_fields_defaults". For backwards
- compatibility, both spellings are now created. The misspelled version may
- be removed in the future.
-
-- bpo-36297: "unicode_internal" codec is removed. It was deprecated since
- Python 3.3. Patch by Inada Naoki.
-
-- bpo-36298: Raise ModuleNotFoundError in pyclbr when a module can't be
- found. Thanks to 'mental' for the bug report.
-
-- bpo-36268: Switch the default format used for writing tars with
- mod:`tarfile` to the modern POSIX.1-2001 pax standard, from the
- vendor-specific GNU. Contributed by C.A.M. Gerlach.
-
-- bpo-36285: Fix integer overflows in the array module. Patch by Stephan
- Hohe.
-
-- bpo-31904: Add _signal module support for VxWorks.
-
-- bpo-36272: :mod:`logging` does not silently ignore RecursionError anymore.
- Patch contributed by Rémi Lapeyre.
-
-- bpo-36280: Add a kind field to ast.Constant. It is 'u' if the literal has
- a 'u' prefix (i.e. a Python 2 style unicode literal), else None.
-
-- bpo-35931: The :mod:`pdb` ``debug`` command now gracefully handles all
- exceptions.
-
-- bpo-36251: Fix format strings used for stderrprinter and re.Match reprs.
- Patch by Stephan Hohe.
-
-- bpo-36235: Fix ``CFLAGS`` in ``customize_compiler()`` of
- ``distutils.sysconfig``: when the ``CFLAGS`` environment variable is
- defined, don't override ``CFLAGS`` variable with the ``OPT`` variable
- anymore. Initial patch written by David Malcolm.
-
-- bpo-35807: Update ensurepip to install pip 19.0.3 and setuptools 40.8.0.
-
-- bpo-36139: Release GIL when closing :class:`~mmap.mmap` objects.
-
-- bpo-36179: Fix two unlikely reference leaks in _hashopenssl. The leaks
- only occur in out-of-memory cases.
-
-- bpo-36169: Add overlap() method to statistics.NormalDist. Computes the
- overlapping coefficient for two normal distributions.
-
-- bpo-36103: Default buffer size used by ``shutil.copyfileobj()`` is changed
- from 16 KiB to 64 KiB on non-Windows platform to reduce system call
- overhead. Contributed by Inada Naoki.
-
-- bpo-36130: Fix ``pdb`` with ``skip=...`` when stepping into a frame
- without a ``__name__`` global. Patch by Anthony Sottile.
-
-- bpo-35652: shutil.copytree(copy_function=...) erroneously pass DirEntry
- instead of a path string.
-
-- bpo-35178: Ensure custom :func:`warnings.formatwarning` function can
- receive `line` as positional argument. Based on patch by Tashrif Billah.
-
-- bpo-36106: Resolve potential name clash with libm's sinpi(). Patch by
- Dmitrii Pasechnik.
-
-- bpo-36091: Clean up reference to async generator in Lib/types. Patch by
- Henry Chen.
-
-- bpo-36043: :class:`FileCookieJar` supports :term:`path-like object`.
- Contributed by Stéphane Wirtel
-
-- bpo-35899: Enum has been fixed to correctly handle empty strings and
- strings with non-Latin characters (ie. 'α', 'א') without crashing.
- Original patch contributed by Maxwell. Assisted by Stéphane Wirtel.
-
-- bpo-21269: Add ``args`` and ``kwargs`` properties to mock call objects.
- Contributed by Kumar Akshay.
-
-- bpo-30670: `pprint.pp` has been added to pretty-print objects with
- dictionary keys being sorted with their insertion order by default.
- Parameter *sort_dicts* has been added to `pprint.pprint`, `pprint.pformat`
- and `pprint.PrettyPrinter`. Contributed by Rémi Lapeyre.
-
-- bpo-35843: Implement ``__getitem__`` for ``_NamespacePath``. Patch by
- Anthony Sottile.
-
-- bpo-35802: Clean up code which checked presence of ``os.stat`` /
- ``os.lstat`` / ``os.chmod`` which are always present. Patch by Anthony
- Sottile.
-
-- bpo-35715: Librates the return value of a ProcessPoolExecutor
- _process_worker after it's no longer needed to free memory
-
-- bpo-35493: Use :func:`multiprocessing.connection.wait` instead of polling
- each 0.2 seconds for worker updates in :class:`multiprocessing.Pool`.
- Patch by Pablo Galindo.
-
-- bpo-35661: Store the venv prompt in pyvenv.cfg.
-
-- bpo-35121: Don't set cookie for a request when the request path is a
- prefix match of the cookie's path attribute but doesn't end with "/".
- Patch by Karthikeyan Singaravelan.
-
-- bpo-21478: Calls to a child function created with
- :func:`unittest.mock.create_autospec` should propagate to the parent.
- Patch by Karthikeyan Singaravelan.
-
-- bpo-35198: Fix C++ extension compilation on AIX
-
-Documentation
--------------
-
-- bpo-36329: Declare the path of the Python binary for the usage of
- ``Tools/scripts/serve.py`` when executing ``make -C Doc/ serve``.
- Contributed by Stéphane Wirtel
-
-- bpo-36138: Improve documentation about converting datetime.timedelta to
- scalars.
-
-- bpo-21314: A new entry was added to the Core Language Section of the
- Programming FAQ, which explaines the usage of slash(/) in the signature of
- a function. Patch by Lysandros Nikolaou
-
-Tests
------
-
-- bpo-36234: test_posix.PosixUidGidTests: add tests for invalid uid/gid type
- (str). Initial patch written by David Malcolm.
-
-- bpo-29571: Fix ``test_re.test_locale_flag()``: use
- ``locale.getpreferredencoding()`` rather than ``locale.getlocale()`` to
- get the locale encoding. With some locales, ``locale.getlocale()`` returns
- the wrong encoding.
-
-- bpo-36123: Fix race condition in test_socket.
-
-Build
------
-
-- bpo-36356: Fix leaks that led to build failure when configured with
- address sanitizer.
-
-- bpo-36146: Add ``TEST_EXTENSIONS`` constant to ``setup.py`` to allow to
- not build test extensions like ``_testcapi``.
-
-- bpo-36146: Fix setup.py on macOS: only add ``/usr/include/ffi`` to include
- directories of _ctypes, not for all extensions.
-
-- bpo-31904: Enable build system to cross-build for VxWorks RTOS.
-
-Windows
--------
-
-- bpo-36312: Fixed decoders for the following code pages: 50220, 50221,
- 50222, 50225, 50227, 50229, 57002 through 57011, 65000 and 42.
-
-- bpo-36264: Don't honor POSIX ``HOME`` in ``os.path.expanduser`` on
- windows. Patch by Anthony Sottile.
-
-- bpo-24643: Fix name collisions due to ``#define timezone _timezone`` in
- PC/pyconfig.h.
-
-IDLE
-----
-
-- bpo-36405: Use dict unpacking in idlelib.
-
-- bpo-36396: Remove fgBg param of idlelib.config.GetHighlight(). This param
- was only used twice and changed the return type.
-
-- bpo-36176: Fix IDLE autocomplete & calltip popup colors. Prevent conflicts
- with Linux dark themes (and slightly darken calltip background).
-
-- bpo-23205: For the grep module, add tests for findfiles, refactor
- findfiles to be a module-level function, and refactor findfiles to use
- os.walk.
-
-- bpo-23216: Add docstrings to IDLE search modules.
-
-- bpo-36152: Remove colorizer.ColorDelegator.close_when_done and the
- corresponding argument of .close(). In IDLE, both have always been None
- or False since 2007.
-
-- bpo-32129: Avoid blurry IDLE application icon on macOS with Tk 8.6. Patch
- by Kevin Walzer.
-
-- bpo-36096: Refactor class variables to instance variables in colorizer.
-
-- bpo-30348: Increase test coverage of idlelib.autocomplete by 30%. Patch by
- Louie Lu
-
-Tools/Demos
------------
-
-- bpo-35132: Fix py-list and py-bt commands of python-gdb.py on gdb7.
-
-- bpo-32217: Fix freeze script on Windows.
-
-C API
------
-
-- bpo-36381: Raise ``DeprecationWarning`` when '#' formats are used for
- building or parsing values without ``PY_SSIZE_T_CLEAN``.
-
-- bpo-36142: The whole coreconfig.h header is now excluded from
- Py_LIMITED_API. Move functions definitions into a new internal
- pycore_coreconfig.h header.
-
-
-What's New in Python 3.8.0 alpha 2?
-===================================
-
-*Release date: 2019-02-25*
-
-Core and Builtins
------------------
-
-- bpo-36052: Raise a :exc:`SyntaxError` when assigning a value to
- `__debug__` with the Assignment Operator. Contributed by Stéphane Wirtel
- and Pablo Galindo.
-
-- bpo-36012: Doubled the speed of class variable writes. When a non-dunder
- attribute was updated, there was an unnecessary call to update slots.
-
-- bpo-35942: The error message emitted when returning invalid types from
- ``__fspath__`` in interfaces that allow passing :class:`~os.PathLike`
- objects has been improved and now it does explain the origin of the error.
-
-- bpo-36016: ``gc.get_objects`` can now receive an optional parameter
- indicating a generation to get objects from. Patch by Pablo Galindo.
-
-- bpo-1054041: When the main interpreter exits due to an uncaught
- KeyboardInterrupt, the process now exits in the appropriate manner for its
- parent process to detect that a SIGINT or ^C terminated the process. This
- allows shells and batch scripts to understand that the user has asked them
- to stop.
-
-- bpo-35992: Fix ``__class_getitem__()`` not being called on a class with a
- custom non-subscriptable metaclass.
-
-- bpo-35993: Fix a crash on fork when using subinterpreters. Contributed by
- Stéphane Wirtel
-
-- bpo-35991: Fix a potential double free in Modules/_randommodule.c.
-
-- bpo-35961: Fix a crash in slice_richcompare(): use strong references
- rather than stolen references for the two temporary internal tuples.
-
-- bpo-35911: Enable the creation of cell objects by adding a
- ``cell.__new__`` method, and expose the type ``cell`` in ``Lib/types.py``
- under the name CellType. Patch by Pierre Glaser.
-
-- bpo-12822: Use monotonic clock for ``pthread_cond_timedwait`` when
- ``pthread_condattr_setclock`` and ``CLOCK_MONOTONIC`` are available.
-
-- bpo-15248: The compiler emits now syntax warnings in the case when a comma
- is likely missed before tuple or list.
-
-- bpo-35886: The implementation of PyInterpreterState has been moved into
- the internal header files (guarded by Py_BUILD_CORE).
-
-- bpo-31506: Clarify the errors reported when ``object.__new__`` and
- ``object.__init__`` receive more than one argument. Contributed by Sanyam
- Khurana.
-
-- bpo-35724: Signal-handling is now guaranteed to happen relative to the
- main interpreter.
-
-- bpo-33608: We added a new internal _Py_AddPendingCall() that operates
- relative to the provided interpreter. This allows us to use the existing
- implementation to ask another interpreter to do work that cannot be done
- in the current interpreter, like decref an object the other interpreter
- owns. The existing Py_AddPendingCall() only operates relative to the main
- interpreter.
-
-- bpo-33989: Fix a possible crash in :meth:`list.sort` when sorting objects
- with ``ob_type->tp_richcompare == NULL``. Patch by Zackery Spytz.
-
-Library
--------
-
-- bpo-35512: :func:`unittest.mock.patch.dict` used as a decorator with
- string target resolves the target during function call instead of during
- decorator construction. Patch by Karthikeyan Singaravelan.
-
-- bpo-36018: Add statistics.NormalDist, a tool for creating and manipulating
- normal distributions of random variable. Features a composite class that
- treats the mean and standard deviation of measurement data as single
- entity.
-
-- bpo-35904: Added statistics.fmean() as a faster, floating point variant of
- the existing mean() function.
-
-- bpo-35918: Removed broken ``has_key`` method from
- multiprocessing.managers.SyncManager.dict. Contributed by Rémi Lapeyre.
-
-- bpo-18283: Add support for bytes to :func:`shutil.which`.
-
-- bpo-35960: Fix :func:`dataclasses.field` throwing away empty mapping
- objects passed as metadata.
-
-- bpo-35500: Write expected and actual call parameters on separate lines in
- :meth:`unittest.mock.Mock.assert_called_with` assertion errors.
- Contributed by Susan Su.
-
-- bpo-35931: The :mod:`pdb` ``debug`` command now gracefully handles syntax
- errors.
-
-- bpo-24209: In http.server script, rely on getaddrinfo to bind to preferred
- address based on the bind parameter. Now default bind or binding to a name
- may bind to IPv6 or dual-stack, depending on the environment.
-
-- bpo-35321: Set ``__spec__.origin`` of ``_frozen_importlib`` to frozen so
- that it matches the behavior of ``_frozen_importlib_external``. Patch by
- Nina Zakharenko.
-
-- bpo-35378: Fix a reference issue inside :class:`multiprocessing.Pool` that
- caused the pool to remain alive if it was deleted without being closed or
- terminated explicitly. A new strong reference is added to the pool
- iterators to link the lifetime of the pool to the lifetime of its
- iterators so the pool does not get destroyed if a pool iterator is still
- alive.
-
-- bpo-34294: re module, fix wrong capturing groups in rare cases.
- :func:`re.search`, :func:`re.findall`, :func:`re.sub` and other functions
- that scan through string looking for a match, should reset capturing
- groups between two match attempts. Patch by Ma Lin.
-
-- bpo-35615: :mod:`weakref`: Fix a RuntimeError when copying a
- WeakKeyDictionary or a WeakValueDictionary, due to some keys or values
- disappearing while iterating.
-
-- bpo-35606: Implement :func:`math.prod` as analogous function to
- :func:`sum` that returns the product of a 'start' value (default: 1) times
- an iterable of numbers. Patch by Pablo Galindo.
-
-- bpo-32417: Performing arithmetic between :class:`datetime.datetime`
- subclasses and :class:`datetime.timedelta` now returns an object of the
- same type as the :class:`datetime.datetime` subclass. As a result,
- :meth:`datetime.datetime.astimezone` and alternate constructors like
- :meth:`datetime.datetime.now` and :meth:`datetime.fromtimestamp` called
- with a ``tz`` argument now *also* retain their subclass.
-
-- bpo-35153: Add *headers* optional keyword-only parameter to
- :class:`xmlrpc.client.ServerProxy`, :class:`xmlrpc.client.Transport` and
- :class:`xmlrpc.client.SafeTransport`. Patch by Cédric Krier.
-
-- bpo-34572: Fix C implementation of pickle.loads to use importlib's locking
- mechanisms, and thereby avoid using partially loaded modules. Patch by Tim
- Burgess.
-
-Documentation
--------------
-
-- bpo-36083: Fix formatting of --check-hash-based-pycs options in the
- manpage Synopsis.
-
-- bpo-36007: Bump minimum sphinx version to 1.8. Patch by Anthony Sottile.
-
-- bpo-22062: Update documentation and docstrings for pathlib. Original patch
- by Mike Short.
-
-Tests
------
-
-- bpo-27313: Avoid test_ttk_guionly ComboboxTest failure with macOS Cocoa
- Tk.
-
-- bpo-36019: Add test.support.TEST_HTTP_URL and replace references of
- http://www.example.com by this new constant. Contributed by Stéphane
- Wirtel.
-
-- bpo-36037: Fix test_ssl for strict OpenSSL configuration like RHEL8 strict
- crypto policy. Use older TLS version for minimum TLS version of the server
- SSL context if needed, to test TLS version older than default minimum TLS
- version.
-
-- bpo-35798: Added :func:`test.support.check_syntax_warning`.
-
-- bpo-35505: Make test_imap4_host_default_value independent on whether the
- local IMAP server is running.
-
-- bpo-35917: multiprocessing: provide unit tests for SyncManager and
- SharedMemoryManager classes + all the shareable types which are supposed
- to be supported by them. (patch by Giampaolo Rodola)
-
-- bpo-35704: Skip ``test_shutil.test_unpack_archive_xztar`` to prevent a
- MemoryError on 32-bit AIX when MAXDATA setting is less than 0x20000000.
-
- Patch by Michael Felt (aixtools)
-
-- bpo-34720: Assert m_state != NULL to mimic GC traversal functions that do
- not correctly handle module creation when the module state has not been
- created.
-
-Windows
--------
-
-- bpo-35976: Added ARM build support to Windows build files in PCBuild.
-
-- bpo-35692: ``pathlib`` no longer raises when checking file and directory
- existence on drives that are not ready
-
-- bpo-35872: Uses the base Python executable when invoking venv in a virtual
- environment
-
-- bpo-35873: Prevents venv paths being inherited by child processes
-
-- bpo-35299: Fix sysconfig detection of the source directory and distutils
- handling of pyconfig.h during PGO profiling
-
-IDLE
-----
-
-- bpo-24310: IDLE -- Document settings dialog font tab sample.
-
-- bpo-35833: Revise IDLE doc for control codes sent to Shell. Add a code
- example block.
-
-- bpo-35689: Add docstrings and unittests for colorizer.py.
-
-
-What's New in Python 3.8.0 alpha 1?
-===================================
-
-*Release date: 2019-02-03*
-
-Security
---------
-
-- bpo-35746: [CVE-2019-5010] Fix a NULL pointer deref in ssl module. The
- cert parser did not handle CRL distribution points with empty DP or URI
- correctly. A malicious or buggy certificate can result into segfault.
- Vulnerability (TALOS-2018-0758) reported by Colin Read and Nicolas Edet of
- Cisco.
-
-- bpo-34812: The :option:`-I` command line option (run Python in isolated
- mode) is now also copied by the :mod:`multiprocessing` and
- :mod:`distutils` modules when spawning child processes. Previously, only
- :option:`-E` and :option:`-s` options (enabled by :option:`-I`) were
- copied.
-
-- bpo-34791: The xml.sax and xml.dom.domreg no longer use environment
- variables to override parser implementations when
- sys.flags.ignore_environment is set by -E or -I arguments.
-
-- bpo-17239: The xml.sax and xml.dom.minidom parsers no longer processes
- external entities by default. External DTD and ENTITY declarations no
- longer load files or create network connections.
-
-- bpo-34623: CVE-2018-14647: The C accelerated _elementtree module now
- initializes hash randomization salt from _Py_HashSecret instead of
- libexpat's default CSPRNG.
-
-- bpo-34405: Updated to OpenSSL 1.1.0i for Windows builds.
-
-- bpo-33871: Fixed sending the part of the file in :func:`os.sendfile` on
- macOS. Using the *trailers* argument could cause sending more bytes from
- the input file than was specified.
-
-- bpo-32533: Fixed thread-safety of error handling in _ssl.
-
-- bpo-33136: Harden ssl module against LibreSSL CVE-2018-8970.
- X509_VERIFY_PARAM_set1_host() is called with an explicit namelen. A new
- test ensures that NULL bytes are not allowed.
-
-- bpo-33001: Minimal fix to prevent buffer overrun in os.symlink on Windows
-
-- bpo-32981: Regexes in difflib and poplib were vulnerable to catastrophic
- backtracking. These regexes formed potential DOS vectors (REDOS). They
- have been refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch
- by Jamie Davis.
-
-- bpo-28414: The ssl module now allows users to perform their own IDN
- en/decoding when using SNI.
-
-Core and Builtins
------------------
-
-- bpo-35877: Make parenthesis optional for named expressions in while
- statement. Patch by Karthikeyan Singaravelan.
-
-- bpo-35814: Allow same right hand side expressions in annotated assignments
- as in normal ones. In particular, ``x: Tuple[int, int] = 1, 2`` (without
- parentheses on the right) is now allowed.
-
-- bpo-35766: Add the option to parse PEP 484 type comments in the ast
- module. (Off by default.) This is merging the key functionality of the
- third party fork thereof,
- [typed_ast](https://github.com/python/typed_ast).
-
-- bpo-35713: Reorganize Python initialization to get working exceptions and
- sys.stderr earlier.
-
-- bpo-33416: Add end line and end column position information to the Python
- AST nodes. This is a C-level backwards incompatible change.
-
-- bpo-35720: Fixed a minor memory leak in pymain_parse_cmdline_impl function
- in Modules/main.c
-
-- bpo-35634: ``func(**kwargs)`` will now raise an error when ``kwargs`` is a
- mapping containing multiple entries with the same key. An error was
- already raised when other keyword arguments are passed before ``**kwargs``
- since Python 3.6.
-
-- bpo-35623: Fix a crash when sorting very long lists. Patch by Stephan
- Hohe.
-
-- bpo-35214: clang Memory Sanitizer build instrumentation was added to work
- around false positives from posix, socket, time, test_io, and
- test_faulthandler.
-
-- bpo-35560: Fix an assertion error in :func:`format` in debug build for
- floating point formatting with "n" format, zero padding and small width.
- Release build is not impacted. Patch by Karthikeyan Singaravelan.
-
-- bpo-35552: Format characters ``%s`` and ``%V`` in
- :c:func:`PyUnicode_FromFormat` and ``%s`` in :c:func:`PyBytes_FromFormat`
- no longer read memory past the limit if *precision* is specified.
-
-- bpo-35504: Fix segfaults and :exc:`SystemError`\ s when deleting certain
- attributes. Patch by Zackery Spytz.
-
-- bpo-35504: Fixed a SystemError when delete the characters_written
- attribute of an OSError.
-
-- bpo-35494: Improved syntax error messages for unbalanced parentheses in
- f-string.
-
-- bpo-35444: Fixed error handling in pickling methods when fail to look up
- builtin "getattr". Sped up pickling iterators.
-
-- bpo-35436: Fix various issues with memory allocation error handling.
- Patch by Zackery Spytz.
-
-- bpo-35423: Separate the signal handling trigger in the eval loop from the
- "pending calls" machinery. There is no semantic change and the difference
- in performance is insignificant.
-
-- bpo-35357: Internal attributes' names of unittest.mock._Call and
- unittest.mock.MagicProxy (name, parent & from_kall) are now prefixed with
- _mock_ in order to prevent clashes with widely used object attributes.
- Fixed minor typo in test function name.
-
-- bpo-35372: Fixed the code page decoder for input longer than 2 GiB
- containing undecodable bytes.
-
-- bpo-35336: Fix PYTHONCOERCECLOCALE=1 environment variable: only coerce the
- C locale if the LC_CTYPE locale is "C".
-
-- bpo-31241: The *lineno* and *col_offset* attributes of AST nodes for list
- comprehensions, generator expressions and tuples are now point to the
- opening parenthesis or square brace. For tuples without parenthesis they
- point to the position of the first item.
-
-- bpo-33954: For :meth:`str.format`, :meth:`float.__format__` and
- :meth:`complex.__format__` methods for non-ASCII decimal point when using
- the "n" formatter.
-
-- bpo-35269: Fix a possible segfault involving a newly created coroutine.
- Patch by Zackery Spytz.
-
-- bpo-35224: Implement :pep:`572` (assignment expressions). Patch by Emily
- Morehouse.
-
-- bpo-32492: Speed up :class:`namedtuple` attribute access by 1.6x using a C
- fast-path for the name descriptors. Patch by Pablo Galindo.
-
-- bpo-35214: Fixed an out of bounds memory access when parsing a truncated
- unicode escape sequence at the end of a string such as ``'\N'``. It would
- read one byte beyond the end of the memory allocation.
-
-- bpo-35214: The interpreter and extension modules have had annotations
- added so that they work properly under clang's Memory Sanitizer. A new
- configure flag --with-memory-sanitizer has been added to make test builds
- of this nature easier to perform.
-
-- bpo-35193: Fix an off by one error in the bytecode peephole optimizer
- where it could read bytes beyond the end of bounds of an array when
- removing unreachable code. This bug was present in every release of Python
- 3.6 and 3.7 until now.
-
-- bpo-35169: Improved error messages for forbidden assignments.
-
-- bpo-34022: Fix handling of hash-based bytecode files in :mod:`zipimport`.
- Patch by Elvis Pranskevichus.
-
-- bpo-28401: Debug builds will no longer to attempt to import extension
- modules built for the ABI as they were never compatible to begin with.
- Patch by Stefano Rivera.
-
-- bpo-29341: Clarify in the docstrings of :mod:`os` methods that path-like
- objects are also accepted as input parameters.
-
-- bpo-35050: :mod:`socket`: Fix off-by-one bug in length check for
- ``AF_ALG`` name and type.
-
-- bpo-29743: Raise :exc:`ValueError` instead of :exc:`OverflowError` in case
- of a negative ``_length_`` in a :class:`ctypes.Array` subclass. Also
- raise :exc:`TypeError` instead of :exc:`AttributeError` for non-integer
- ``_length_``. Original patch by Oren Milman.
-
-- bpo-16806: Fix ``lineno`` and ``col_offset`` for multi-line string tokens.
-
-- bpo-35029: :exc:`SyntaxWarning` raised as an exception at code generation
- time will be now replaced with a :exc:`SyntaxError` for better error
- reporting.
-
-- bpo-34983: Expose :meth:`symtable.Symbol.is_nonlocal` in the symtable
- module. Patch by Pablo Galindo.
-
-- bpo-34974: :class:`bytes` and :class:`bytearray` constructors no longer
- convert unexpected exceptions (e.g. :exc:`MemoryError` and
- :exc:`KeyboardInterrupt`) to :exc:`TypeError`.
-
-- bpo-34939: Allow annotated names in module namespace that are declared
- global before the annotation happens. Patch by Pablo Galindo.
-
-- bpo-34973: Fixed crash in :func:`bytes` when the :class:`list` argument is
- mutated while it is iterated.
-
-- bpo-34876: The *lineno* and *col_offset* attributes of the AST for
- decorated function and class refer now to the position of the
- corresponding ``def``, ``async def`` and ``class`` instead of the position
- of the first decorator. This leads to more correct line reporting in
- tracing. This is the only case when the position of child AST nodes can
- precede the position of the parent AST node.
-
-- bpo-34879: Fix a possible null pointer dereference in bytesobject.c.
- Patch by Zackery Spytz.
-
-- bpo-34784: Fix the implementation of PyStructSequence_NewType in order to
- create heap allocated StructSequences.
-
-- bpo-32912: A :exc:`SyntaxWarning` is now emitted instead of a
- :exc:`DeprecationWarning` for invalid escape sequences in string and bytes
- literals.
-
-- bpo-34854: Fixed a crash in compiling string annotations containing a
- lambda with a keyword-only argument that doesn't have a default value.
-
-- bpo-34850: The compiler now produces a :exc:`SyntaxWarning` when identity
- checks (``is`` and ``is not``) are used with certain types of literals
- (e.g. strings, ints). These can often work by accident in CPython, but
- are not guaranteed by the language spec. The warning advises users to use
- equality tests (``==`` and ``!=``) instead.
-
-- bpo-34824: Fix a possible null pointer dereference in Modules/_ssl.c.
- Patch by Zackery Spytz.
-
-- bpo-30156: The C function ``property_descr_get()`` uses a "cached" tuple
- to optimize function calls. But this tuple can be discovered in debug mode
- with :func:`sys.getobjects()`. Remove the optimization, it's not really
- worth it and it causes 3 different crashes last years.
-
-- bpo-34762: Fix contextvars C API to use PyObject* pointer types.
-
-- bpo-34751: The hash function for tuples is now based on xxHash which gives
- better collision results on (formerly) pathological cases. Additionally,
- on 64-bit systems it improves tuple hashes in general. Patch by Jeroen
- Demeyer with substantial contributions by Tim Peters.
-
-- bpo-34735: Fix a memory leak in Modules/timemodule.c. Patch by Zackery
- Spytz.
-
-- bpo-34683: Fixed a bug where some SyntaxError error pointed to locations
- that were off-by-one.
-
-- bpo-34651: Only allow the main interpreter to fork. The avoids the
- possibility of affecting the main interpreter, which is critical to
- operation of the runtime.
-
-- bpo-34653: Remove unused function PyParser_SimpleParseStringFilename.
-
-- bpo-32236: Warn that line buffering is not supported if :func:`open` is
- called with binary mode and ``buffering=1``.
-
-- bpo-34641: Further restrict the syntax of the left-hand side of keyword
- arguments in function calls. In particular, ``f((keyword)=arg)`` is now
- disallowed.
-
-- bpo-34637: Make the *start* argument to *sum()* visible as a keyword
- argument.
-
-- bpo-1621: Do not assume signed integer overflow behavior (C undefined
- behavior) when performing set hash table resizing.
-
-- bpo-34588: Fix an off-by-one in the recursive call pruning feature of
- traceback formatting.
-
-- bpo-34485: On Windows, the LC_CTYPE is now set to the user preferred
- locale at startup. Previously, the LC_CTYPE locale was "C" at startup, but
- changed when calling setlocale(LC_CTYPE, "") or setlocale(LC_ALL, "").
-
-- bpo-34485: Standard streams like sys.stdout now use the "surrogateescape"
- error handler, instead of "strict", on the POSIX locale (when the C locale
- is not coerced and the UTF-8 Mode is disabled).
-
-- bpo-34485: Fix the error handler of standard streams like sys.stdout:
- PYTHONIOENCODING=":" is now ignored instead of setting the error handler
- to "strict".
-
-- bpo-34485: Python now gets the locale encoding with C code to initialize
- the encoding of standard streams like sys.stdout. Moreover, the encoding
- is now initialized to the Python codec name to get a normalized encoding
- name and to ensure that the codec is loaded. The change avoids importing
- _bootlocale and _locale modules at startup by default.
-
-- bpo-34527: On FreeBSD, Py_DecodeLocale() and Py_EncodeLocale() now also
- forces the ASCII encoding if the LC_CTYPE locale is "POSIX", not only if
- the LC_CTYPE locale is "C".
-
-- bpo-34527: The UTF-8 Mode is now also enabled by the "POSIX" locale, not
- only by the "C" locale.
-
-- bpo-34403: On HP-UX with C or POSIX locale, sys.getfilesystemencoding()
- now returns "ascii" instead of "roman8" (when the UTF-8 Mode is disabled
- and the C locale is not coerced).
-
-- bpo-34523: The Python filesystem encoding is now read earlier during the
- Python initialization.
-
-- bpo-12458: Tracebacks show now correct line number for subexpressions in
- multiline expressions. Tracebacks show now the line number of the first
- line for multiline expressions instead of the line number of the last
- subexpression.
-
-- bpo-34408: Prevent a null pointer dereference and resource leakage in
- ``PyInterpreterState_New()``.
-
-- bpo-34400: Fix undefined behavior in parsetok.c. Patch by Zackery Spytz.
-
-- bpo-33073: Added as_integer_ratio to ints to make them more interoperable
- with floats.
-
-- bpo-34377: Update valgrind suppression list to use
- ``_PyObject_Free``/``_PyObject_Realloc`` instead of
- ``PyObject_Free``/``PyObject_Realloc``.
-
-- bpo-34353: Added the "socket" option in the `stat.filemode()` Python
- implementation to match the C implementation.
-
-- bpo-34320: Fix ``dict(od)`` didn't copy iteration order of OrderedDict.
-
-- bpo-34113: Fixed crash on debug builds when opcode stack was adjusted with
- negative numbers. Patch by Constantin Petrisor.
-
-- bpo-34100: Compiler now merges constants in tuples and frozensets
- recursively. Code attributes like ``co_names`` are merged too.
-
-- bpo-34151: Performance of list concatenation, repetition and slicing
- operations is slightly improved. Patch by Sergey Fedoseev.
-
-- bpo-34170: -X dev: it is now possible to override the memory allocator
- using PYTHONMALLOC even if the developer mode is enabled.
-
-- bpo-33237: Improved :exc:`AttributeError` message for partially
- initialized module.
-
-- bpo-34149: Fix min and max functions to get default behavior when key is
- None.
-
-- bpo-34125: Profiling of unbound built-in methods now works when
- ``**kwargs`` is given.
-
-- bpo-34141: Optimized pickling atomic types (None, bool, int, float, bytes,
- str).
-
-- bpo-34126: Fix crashes when profiling certain invalid calls of unbound
- methods. Patch by Jeroen Demeyer.
-
-- bpo-24618: Fixed reading invalid memory when create the code object with
- too small varnames tuple or too large argument counts.
-
-- bpo-34068: In :meth:`io.IOBase.close`, ensure that the
- :attr:`~io.IOBase.closed` attribute is not set with a live exception.
- Patch by Zackery Spytz and Serhiy Storchaka.
-
-- bpo-34087: Fix buffer overflow while converting unicode to numeric values.
-
-- bpo-34080: Fixed a memory leak in the compiler when it raised some
- uncommon errors during tokenizing.
-
-- bpo-34066: Disabled interruption by Ctrl-C between calling ``open()`` and
- entering a **with** block in ``with open()``.
-
-- bpo-34042: Fix dict.copy() to maintain correct total refcount (as reported
- by sys.gettotalrefcount()).
-
-- bpo-33418: Fix potential memory leak in function object when it creates
- reference cycle.
-
-- bpo-33985: Implement contextvars.ContextVar.name attribute.
-
-- bpo-33956: Update vendored Expat library copy to version 2.2.5.
-
-- bpo-24596: Decref the module object in :c:func:`PyRun_SimpleFileExFlags`
- before calling :c:func:`PyErr_Print()`. Patch by Zackery Spytz.
-
-- bpo-33451: Close directly executed pyc files before calling
- ``PyEval_EvalCode()``.
-
-- bpo-1617161: The hash of :class:`BuiltinMethodType` instances (methods of
- built-in classes) now depends on the hash of the identity of *__self__*
- instead of its value. The hash and equality of :class:`ModuleType` and
- :class:`MethodWrapperType` instances (methods of user-defined classes and
- some methods of built-in classes like ``str.__add__``) now depend on the
- hash and equality of the identity of *__self__* instead of its value.
- :class:`MethodWrapperType` instances no longer support ordering.
-
-- bpo-33824: Fix "LC_ALL=C python3.7 -V": reset properly the command line
- parser when the encoding changes after reading the Python configuration.
-
-- bpo-33803: Fix a crash in hamt.c caused by enabling GC tracking for an
- object that hadn't all of its fields set to NULL.
-
-- bpo-33738: Seven macro incompatibilities with the Limited API were fixed,
- and the macros :c:func:`PyIter_Check`, :c:func:`PyIndex_Check` and
- :c:func:`PyExceptionClass_Name` were added as functions. A script for
- automatic macro checks was added.
-
-- bpo-33786: Fix asynchronous generators to handle GeneratorExit in athrow()
- correctly
-
-- bpo-30167: ``PyRun_SimpleFileExFlags`` removes ``__cached__`` from module
- in addition to ``__file__``.
-
-- bpo-33706: Fix a crash in Python initialization when parsing the command
- line options. Thanks Christoph Gohlke for the bug report and the fix!
-
-- bpo-33597: Reduce ``PyGC_Head`` size from 3 words to 2 words.
-
-- bpo-30654: Fixed reset of the SIGINT handler to SIG_DFL on interpreter
- shutdown even when there was a custom handler set previously. Patch by
- Philipp Kerling.
-
-- bpo-33622: Fixed a leak when the garbage collector fails to add an object
- with the ``__del__`` method or referenced by it into the
- :data:`gc.garbage` list. :c:func:`PyGC_Collect` can now be called when an
- exception is set and preserves it.
-
-- bpo-33462: Make dict and dict views reversible. Patch by Rémi Lapeyre.
-
-- bpo-23722: A :exc:`RuntimeError` is now raised when the custom metaclass
- doesn't provide the ``__classcell__`` entry in the namespace passed to
- ``type.__new__``. A :exc:`DeprecationWarning` was emitted in Python
- 3.6--3.7.
-
-- bpo-33499: Add :envvar:`PYTHONPYCACHEPREFIX` environment variable and
- :option:`-X` ``pycache_prefix`` command-line option to set an alternate
- root directory for writing module bytecode cache files.
-
-- bpo-25711: The :mod:`zipimport` module has been rewritten in pure Python.
-
-- bpo-33509: Fix module_globals parameter of warnings.warn_explicit(): don't
- crash if module_globals is not a dict.
-
-- bpo-31849: Fix signed/unsigned comparison warning in pyhash.c.
-
-- bpo-33475: Fixed miscellaneous bugs in converting annotations to strings
- and optimized parentheses in the string representation.
-
-- bpo-20104: Added support for the `setpgroup`, `resetids`, `setsigmask`,
- `setsigdef` and `scheduler` parameters of `posix_spawn`. Patch by Pablo
- Galindo.
-
-- bpo-33391: Fix a leak in set_symmetric_difference().
-
-- bpo-33363: Raise a SyntaxError for ``async with`` and ``async for``
- statements outside of async functions.
-
-- bpo-28055: Fix unaligned accesses in siphash24(). Patch by Rolf Eike Beer.
-
-- bpo-33128: Fix a bug that causes PathFinder to appear twice on
- sys.meta_path. Patch by Pablo Galindo Salgado.
-
-- bpo-33331: Modules imported last are now cleared first at interpreter
- shutdown.
-
-- bpo-33312: Fixed clang ubsan (undefined behavior sanitizer) warnings in
- dictobject.c by adjusting how the internal struct _dictkeysobject shared
- keys structure is declared.
-
-- bpo-33305: Improved syntax error messages for invalid numerical literals.
-
-- bpo-33306: Improved syntax error messages for unbalanced parentheses.
-
-- bpo-33234: The list constructor will pre-size and not over-allocate when
- the input length is known.
-
-- bpo-33270: Intern the names for all anonymous code objects. Patch by
- Zackery Spytz.
-
-- bpo-30455: The C and Python code and the documentation related to tokens
- are now generated from a single source file :file:`Grammar/Tokens`.
-
-- bpo-33176: Add a ``toreadonly()`` method to memoryviews.
-
-- bpo-33231: Fix potential memory leak in ``normalizestring()``.
-
-- bpo-33205: Change dict growth function from
- ``round_up_to_power_2(used*2+hashtable_size/2)`` to
- ``round_up_to_power_2(used*3)``. Previously, dict is shrinked only when
- ``used == 0``. Now dict has more chance to be shrinked.
-
-- bpo-29922: Improved error messages in 'async with' when ``__aenter__()``
- or ``__aexit__()`` return non-awaitable object.
-
-- bpo-33199: Fix ``ma_version_tag`` in dict implementation is uninitialized
- when copying from key-sharing dict.
-
-- bpo-33053: When using the -m switch, sys.path[0] is now explicitly
- expanded as the *starting* working directory, rather than being left as
- the empty path (which allows imports from the current working directory at
- the time of the import)
-
-- bpo-33138: Changed standard error message for non-pickleable and
- non-copyable types. It now says "cannot pickle" instead of "can't pickle"
- or "cannot serialize".
-
-- bpo-33018: Improve consistency of errors raised by ``issubclass()`` when
- called with a non-class and an abstract base class as the first and second
- arguments, respectively. Patch by Josh Bronson.
-
-- bpo-33083: ``math.factorial`` no longer accepts arguments that are not
- int-like. Patch by Pablo Galindo.
-
-- bpo-33041: Added new opcode :opcode:`END_ASYNC_FOR` and fixes the
- following issues:
-
- * Setting global :exc:`StopAsyncIteration` no longer breaks ``async for``
- loops.
- * Jumping into an ``async for`` loop is now disabled.
- * Jumping out of an ``async for`` loop no longer corrupts the stack.
-
-- bpo-25750: Fix rare Python crash due to bad refcounting in
- ``type_getattro()`` if a descriptor deletes itself from the class. Patch
- by Jeroen Demeyer.
-
-- bpo-33041: Fixed bytecode generation for "async for" with a complex
- target. A StopAsyncIteration raised on assigning or unpacking will be now
- propagated instead of stopping the iteration.
-
-- bpo-33026: Fixed jumping out of "with" block by setting f_lineno.
-
-- bpo-33005: Fix a crash on fork when using a custom memory allocator (ex:
- using PYTHONMALLOC env var). _PyGILState_Reinit() and
- _PyInterpreterState_Enable() now use the default RAW memory allocator to
- allocate a new interpreters mutex on fork.
-
-- bpo-32911: Due to unexpected compatibility issues discovered during
- downstream beta testing, reverted :issue:`29463`. ``docstring`` field is
- removed from Module, ClassDef, FunctionDef, and AsyncFunctionDef ast nodes
- which was added in 3.7a1. Docstring expression is restored as a first
- statement in their body. Based on patch by Inada Naoki.
-
-- bpo-17288: Prevent jumps from 'return' and 'exception' trace events.
-
-- bpo-32946: Importing names from already imported module with "from ...
- import ..." is now 30% faster if the module is not a package.
-
-- bpo-32932: Make error message more revealing when there are non-str
- objects in ``__all__``.
-
-- bpo-32925: Optimized iterating and containing test for literal lists
- consisting of non-constants: ``x in [a, b]`` and ``for x in [a, b]``. The
- case of all constant elements already was optimized.
-
-- bpo-32889: Update Valgrind suppression list to account for the rename of
- ``Py_ADDRESS_IN_RANG`` to ``address_in_range``.
-
-- bpo-32836: Don't use temporary variables in cases of list/dict/set
- comprehensions
-
-- bpo-31356: Remove the new API added in bpo-31356 (gc.ensure_disabled()
- context manager).
-
-- bpo-32305: For namespace packages, ensure that both ``__file__`` and
- ``__spec__.origin`` are set to None.
-
-- bpo-32303: Make sure ``__spec__.loader`` matches ``__loader__`` for
- namespace packages.
-
-- bpo-32711: Fix the warning messages for Python/ast_unparse.c. Patch by
- Stéphane Wirtel
-
-- bpo-32583: Fix possible crashing in builtin Unicode decoders caused by
- write out-of-bound errors when using customized decode error handlers.
-
-- bpo-32489: A :keyword:`continue` statement is now allowed in the
- :keyword:`finally` clause.
-
-- bpo-17611: Simplified the interpreter loop by moving the logic of
- unrolling the stack of blocks into the compiler. The compiler emits now
- explicit instructions for adjusting the stack of values and calling the
- cleaning up code for :keyword:`break`, :keyword:`continue` and
- :keyword:`return`.
-
- Removed opcodes :opcode:`BREAK_LOOP`, :opcode:`CONTINUE_LOOP`,
- :opcode:`SETUP_LOOP` and :opcode:`SETUP_EXCEPT`. Added new opcodes
- :opcode:`ROT_FOUR`, :opcode:`BEGIN_FINALLY` and :opcode:`CALL_FINALLY` and
- :opcode:`POP_FINALLY`. Changed the behavior of :opcode:`END_FINALLY` and
- :opcode:`WITH_CLEANUP_START`.
-
-- bpo-32285: New function unicodedata.is_normalized, which can check whether
- a string is in a specific normal form.
-
-- bpo-10544: Yield expressions are now disallowed in comprehensions and
- generator expressions except the expression for the outermost iterable.
-
-- bpo-32117: Iterable unpacking is now allowed without parentheses in yield
- and return statements, e.g. ``yield 1, 2, 3, *rest``. Thanks to David
- Cuthbert for the change and Jordan Chapman for added tests.
-
-- bpo-31902: Fix the ``col_offset`` attribute for ast nodes
- ``ast.AsyncFor``, ``ast.AsyncFunctionDef``, and ``ast.AsyncWith``.
- Previously, ``col_offset`` pointed to the keyword after ``async``.
-
-- bpo-25862: Fix assertion failures in the ``tell()`` method of
- ``io.TextIOWrapper``. Patch by Zackery Spytz.
-
-- bpo-21983: Fix a crash in `ctypes.cast()` in case the type argument is a
- ctypes structured data type. Patch by Eryk Sun and Oren Milman.
-
-- bpo-31577: Fix a crash in `os.utime()` in case of a bad ns argument. Patch
- by Oren Milman.
-
-- bpo-29832: Remove references to 'getsockaddrarg' from various socket error
- messages. Patch by Oren Milman.
-
-Library
--------
-
-- bpo-35845: Add 'order' parameter to memoryview.tobytes().
-
-- bpo-35864: The _asdict() method for collections.namedtuple now returns a
- regular dict instead of an OrderedDict.
-
-- bpo-35537: An ExitStack is now used internally within subprocess.Popen to
- clean up pipe file handles. No behavior change in normal operation. But if
- closing one handle were ever to cause an exception, the others will now be
- closed instead of leaked. (patch by Giampaolo Rodola)
-
-- bpo-35847: RISC-V needed the CTYPES_PASS_BY_REF_HACK. Fixes ctypes
- Structure test_pass_by_value.
-
-- bpo-35813: Shared memory submodule added to multiprocessing to avoid need
- for serialization between processes
-
-- bpo-35780: Fix lru_cache() errors arising in recursive, reentrant, or
- multi-threaded code. These errors could result in orphan links and in the
- cache being trapped in a state with fewer than the specified maximum
- number of links. Fix handling of negative maxsize which should have been
- treated as zero. Fix errors in toggling the "full" status flag. Fix
- misordering of links when errors are encountered. Sync-up the C code and
- pure Python code for the space saving path in functions with a single
- positional argument. In this common case, the space overhead of an lru
- cache entry is reduced by almost half. Fix counting of cache misses. In
- error cases, the miss count was out of sync with the actual number of
- times the underlying user function was called.
-
-- bpo-35537: :func:`os.posix_spawn` and :func:`os.posix_spawnp` now have a
- *setsid* parameter.
-
-- bpo-23846: :class:`asyncio.ProactorEventLoop` now catches and logs send
- errors when the self-pipe is full.
-
-- bpo-34323: :mod:`asyncio`: Enhance ``IocpProactor.close()`` log: wait 1
- second before the first log, then log every second. Log also the number of
- seconds since ``close()`` was called.
-
-- bpo-35674: Add a new :func:`os.posix_spawnp` function. Patch by Joannah
- Nanjekye.
-
-- bpo-35733: ``ast.Constant(boolean)`` no longer an instance of
- :class:`ast.Num`. Patch by Anthony Sottile.
-
-- bpo-35726: QueueHandler.prepare() now makes a copy of the record before
- modifying and enqueueing it, to avoid affecting other handlers in the
- chain.
-
-- bpo-35719: Sped up multi-argument :mod:`math` functions atan2(),
- copysign(), remainder() and hypot() by 1.3--2.5 times.
-
-- bpo-35717: Fix KeyError exception raised when using enums and compile.
- Patch contributed by Rémi Lapeyre.
-
-- bpo-35699: Fixed detection of Visual Studio Build Tools 2017 in distutils
-
-- bpo-32710: Fix memory leaks in asyncio ProactorEventLoop on overlapped
- operation failure.
-
-- bpo-35702: The :data:`time.CLOCK_UPTIME_RAW` constant is now available for
- macOS 10.12.
-
-- bpo-32710: Fix a memory leak in asyncio in the ProactorEventLoop when
- ``ReadFile()`` or ``WSASend()`` overlapped operation fail immediately:
- release the internal buffer.
-
-- bpo-35682: Fix ``asyncio.ProactorEventLoop.sendfile()``: don't attempt to
- set the result of an internal future if it's already done.
-
-- bpo-35283: Add a deprecated warning for the
- :meth:`threading.Thread.isAlive` method. Patch by Dong-hee Na.
-
-- bpo-35664: Improve operator.itemgetter() performance by 33% with optimized
- argument handling and with adding a fast path for the common case of a
- single non-negative integer index into a tuple (which is the typical use
- case in the standard library).
-
-- bpo-35643: Fixed a SyntaxWarning: invalid escape sequence in
- Modules/_sha3/cleanup.py. Patch by Mickaël Schoentgen.
-
-- bpo-35619: Improved support of custom data descriptors in :func:`help` and
- :mod:`pydoc`.
-
-- bpo-28503: The `crypt` module now internally uses the `crypt_r()` library
- function instead of `crypt()` when available.
-
-- bpo-35614: Fixed help() on metaclasses. Patch by Sanyam Khurana.
-
-- bpo-35568: Expose ``raise(signum)`` as `raise_signal`
-
-- bpo-35588: The floor division and modulo operations and the :func:`divmod`
- function on :class:`fractions.Fraction` types are 2--4x faster. Patch by
- Stefan Behnel.
-
-- bpo-35585: Speed-up building enums by value, e.g. http.HTTPStatus(200).
-
-- bpo-30561: random.gammavariate(1.0, beta) now computes the same result as
- random.expovariate(1.0 / beta). This synchronizes the two algorithms and
- eliminates some idiosyncrasies in the old implementation. It does however
- produce a difference stream of random variables than it used to.
-
-- bpo-35537: The :mod:`subprocess` module can now use the
- :func:`os.posix_spawn` function in some cases for better performance.
-
-- bpo-35526: Delaying the 'joke' of barry_as_FLUFL.mandatory to Python
- version 4.0
-
-- bpo-35523: Remove :mod:`ctypes` callback workaround: no longer create a
- callback at startup. Avoid SELinux alert on ``import ctypes`` and ``import
- uuid``.
-
-- bpo-31784: :func:`uuid.uuid1` now calls :func:`time.time_ns` rather than
- ``int(time.time() * 1e9)``.
-
-- bpo-35513: :class:`~unittest.runner.TextTestRunner` of
- :mod:`unittest.runner` now uses :func:`time.perf_counter` rather than
- :func:`time.time` to measure the execution time of a test:
- :func:`time.time` can go backwards, whereas :func:`time.perf_counter` is
- monotonic.
-
-- bpo-35502: Fixed reference leaks in
- :class:`xml.etree.ElementTree.TreeBuilder` in case of unfinished building
- of the tree (in particular when an error was raised during parsing XML).
-
-- bpo-35348: Make :func:`platform.architecture` parsing of ``file`` command
- output more reliable: add the ``-b`` option to the ``file`` command to
- omit the filename, force the usage of the C locale, and search also the
- "shared object" pattern.
-
-- bpo-35491: :mod:`multiprocessing`: Add ``Pool.__repr__()`` and enhance
- ``BaseProcess.__repr__()`` (add pid and parent pid) to ease debugging.
- Pool state constant values are now strings instead of integers, for
- example ``RUN`` value becomes ``'RUN'`` instead of ``0``.
-
-- bpo-35477: :meth:`multiprocessing.Pool.__enter__` now fails if the pool is
- not running: ``with pool:`` fails if used more than once.
-
-- bpo-31446: Copy command line that was passed to CreateProcessW since this
- function can change the content of the input buffer.
-
-- bpo-35471: Python 2.4 dropped MacOS 9 support. The macpath module was
- deprecated in Python 3.7. The module is now removed.
-
-- bpo-23057: Unblock Proactor event loop when keyboard interrupt is received
- on Windows
-
-- bpo-35052: Fix xml.dom.minidom cloneNode() on a document with an entity:
- pass the correct arguments to the user data handler of an entity.
-
-- bpo-20239: Allow repeated assignment deletion of
- :class:`unittest.mock.Mock` attributes. Patch by Pablo Galindo.
-
-- bpo-17185: Set ``__signature__`` on mock for :mod:`inspect` to get
- signature. Patch by Karthikeyan Singaravelan.
-
-- bpo-35445: Memory errors during creating posix.environ no longer ignored.
-
-- bpo-35415: Validate fileno= argument to socket.socket().
-
-- bpo-35424: :class:`multiprocessing.Pool` destructor now emits
- :exc:`ResourceWarning` if the pool is still running.
-
-- bpo-35330: When a :class:`Mock` instance was used to wrap an object, if
- `side_effect` is used in one of the mocks of it methods, don't call the
- original implementation and return the result of using the side effect the
- same way that it is done with return_value.
-
-- bpo-35346: Drop Mac OS 9 and Rhapsody support from the :mod:`platform`
- module. Rhapsody last release was in 2000. Mac OS 9 last release was in
- 2001.
-
-- bpo-10496: :func:`~distutils.utils.check_environ` of
- :mod:`distutils.utils` now catches :exc:`KeyError` on calling
- :func:`pwd.getpwuid`: don't create the ``HOME`` environment variable in
- this case.
-
-- bpo-10496: :func:`posixpath.expanduser` now returns the input *path*
- unchanged if the ``HOME`` environment variable is not set and the current
- user has no home directory (if the current user identifier doesn't exist
- in the password database). This change fix the :mod:`site` module if the
- current user doesn't exist in the password database (if the user has no
- home directory).
-
-- bpo-35389: :func:`platform.libc_ver` now uses
- ``os.confstr('CS_GNU_LIBC_VERSION')`` if available and the *executable*
- parameter is not set.
-
-- bpo-35394: Add empty slots to asyncio abstract protocols.
-
-- bpo-35310: Fix a bug in :func:`select.select` where, in some cases, the
- file descriptor sequences were returned unmodified after a signal
- interruption, even though the file descriptors might not be ready yet.
- :func:`select.select` will now always return empty lists if a timeout has
- occurred. Patch by Oran Avraham.
-
-- bpo-35380: Enable TCP_NODELAY on Windows for proactor asyncio event loop.
-
-- bpo-35341: Add generic version of ``collections.OrderedDict`` to the
- ``typing`` module. Patch by Ismo Toijala.
-
-- bpo-35371: Fixed possible crash in ``os.utime()`` on Windows when pass
- incorrect arguments.
-
-- bpo-35346: :func:`platform.uname` now redirects ``stderr`` to
- :data:`os.devnull` when running external programs like ``cmd /c ver``.
-
-- bpo-35066: Previously, calling the strftime() method on a datetime object
- with a trailing '%' in the format string would result in an exception.
- However, this only occurred when the datetime C module was being used; the
- python implementation did not match this behavior. Datetime is now PEP-399
- compliant, and will not throw an exception on a trailing '%'.
-
-- bpo-35345: The function `platform.popen` has been removed, it was
- deprecated since Python 3.3: use :func:`os.popen` instead.
-
-- bpo-35344: On macOS, :func:`platform.platform` now uses
- :func:`platform.mac_ver`, if it returns a non-empty release string, to get
- the macOS version rather than the darwin version.
-
-- bpo-35312: Make ``lib2to3.pgen2.parse.ParseError`` round-trip pickle-able.
- Patch by Anthony Sottile.
-
-- bpo-35308: Fix regression in ``webbrowser`` where default browsers may be
- preferred over browsers in the ``BROWSER`` environment variable.
-
-- bpo-24746: Avoid stripping trailing whitespace in doctest fancy diff.
- Original patch by R. David Murray & Jairo Trad. Enhanced by Sanyam
- Khurana.
-
-- bpo-28604: :func:`locale.localeconv` now sets temporarily the ``LC_CTYPE``
- locale to the ``LC_MONETARY`` locale if the two locales are different and
- monetary strings are non-ASCII. This temporary change affects other
- threads.
-
-- bpo-35277: Update ensurepip to install pip 18.1 and setuptools 40.6.2.
-
-- bpo-24209: Adds IPv6 support when invoking http.server directly.
-
-- bpo-35226: Recursively check arguments when testing for equality of
- :class:`unittest.mock.call` objects and add note that tracking of
- parameters used to create ancestors of mocks in ``mock_calls`` is not
- possible.
-
-- bpo-29564: The warnings module now suggests to enable tracemalloc if the
- source is specified, the tracemalloc module is available, but tracemalloc
- is not tracing memory allocations.
-
-- bpo-35189: Modify the following fnctl function to retry if interrupted by
- a signal (EINTR): flock, lockf, fnctl
-
-- bpo-30064: Use add_done_callback() in sock_* asyncio API to unsubscribe
- reader/writer early on calcellation.
-
-- bpo-35186: Removed the "built with" comment added when ``setup.py upload``
- is used with either ``bdist_rpm`` or ``bdist_dumb``.
-
-- bpo-35152: Allow sending more than 2 GB at once on a multiprocessing
- connection on non-Windows systems.
-
-- bpo-35062: Fix incorrect parsing of
- :class:`_io.IncrementalNewlineDecoder`'s *translate* argument.
-
-- bpo-35065: Remove `StreamReaderProtocol._untrack_reader`. The call to
- `_untrack_reader` is currently performed too soon, causing the protocol to
- forget about the reader before `connection_lost` can run and feed the EOF
- to the reader.
-
-- bpo-34160: ElementTree and minidom now preserve the attribute order
- specified by the user.
-
-- bpo-35079: Improve difflib.SequenceManager.get_matching_blocks doc by
- adding 'non-overlapping' and changing '!=' to '<'.
-
-- bpo-33710: Deprecated ``l*gettext()`` functions and methods in the
- :mod:`gettext` module. They return encoded bytes instead of Unicode
- strings and are artifacts from Python 2 times. Also deprecated functions
- and methods related to setting the charset for ``l*gettext()`` functions
- and methods.
-
-- bpo-35017: :meth:`socketserver.BaseServer.serve_forever` now exits
- immediately if it's :meth:`~socketserver.BaseServer.shutdown` method is
- called while it is polling for new events.
-
-- bpo-35024: `importlib` no longer logs `wrote <bytecode path>` redundantly
- after `(created|could not create) <bytecode path>` is already logged.
- Patch by Quentin Agren.
-
-- bpo-35047: ``unittest.mock`` now includes mock calls in exception messages
- if ``assert_not_called``, ``assert_called_once``, or
- ``assert_called_once_with`` fails. Patch by Petter Strandmark.
-
-- bpo-31047: Fix ``ntpath.abspath`` regression where it didn't remove a
- trailing separator on Windows. Patch by Tim Graham.
-
-- bpo-35053: tracemalloc now tries to update the traceback when an object is
- reused from a "free list" (optimization for faster object creation, used
- by the builtin list type for example).
-
-- bpo-31553: Add the --json-lines option to json.tool. Patch by hongweipeng.
-
-- bpo-34794: Fixed a leak in Tkinter when pass the Python wrapper around
- Tcl_Obj back to Tcl/Tk.
-
-- bpo-34909: Enum: fix grandchildren subclassing when parent mixed with
- concrete data types.
-
-- bpo-35022: :class:`unittest.mock.MagicMock` now supports the
- ``__fspath__`` method (from :class:`os.PathLike`).
-
-- bpo-35008: Fixed references leaks when call the ``__setstate__()`` method
- of :class:`xml.etree.ElementTree.Element` in the C implementation for
- already initialized element.
-
-- bpo-23420: Verify the value for the parameter '-s' of the cProfile CLI.
- Patch by Robert Kuska
-
-- bpo-33947: dataclasses now handle recursive reprs without raising
- RecursionError.
-
-- bpo-34890: Make :func:`inspect.iscoroutinefunction`,
- :func:`inspect.isgeneratorfunction` and :func:`inspect.isasyncgenfunction`
- work with :func:`functools.partial`. Patch by Pablo Galindo.
-
-- bpo-34521: Use :func:`socket.CMSG_SPACE` to calculate ancillary data size
- instead of :func:`socket.CMSG_LEN` in
- :func:`multiprocessing.reduction.recvfds` as :rfc:`3542` requires the use
- of the former for portable applications.
-
-- bpo-31522: The `mailbox.mbox.get_string` function *from_* parameter can
- now successfully be set to a non-default value.
-
-- bpo-34970: Protect tasks weak set manipulation in ``asyncio.all_tasks()``
-
-- bpo-34969: gzip: Add --fast, --best on the gzip CLI, these parameters will
- be used for the fast compression method (quick) or the best method
- compress (slower, but smaller file). Also, change the default compression
- level to 6 (tradeoff).
-
-- bpo-16965: The :term:`2to3` :2to3fixer:`execfile` fixer now opens the file
- with mode ``'rb'``. Patch by Zackery Spytz.
-
-- bpo-34966: :mod:`pydoc` now supports aliases not only to methods defined
- in the end class, but also to inherited methods. The docstring is not
- duplicated for aliases.
-
-- bpo-34926: :meth:`mimetypes.MimeTypes.guess_type` now accepts
- :term:`path-like object` in addition to url strings. Patch by Mayank
- Asthana.
-
-- bpo-23831: Add ``moveto()`` method to the ``tkinter.Canvas`` widget. Patch
- by Juliette Monsel.
-
-- bpo-34941: Methods ``find()``, ``findtext()`` and ``findall()`` of the
- ``Element`` class in the :mod:`xml.etree.ElementTree` module are now able
- to find children which are instances of ``Element`` subclasses.
-
-- bpo-32680: :class:`smtplib.SMTP` objects now always have a `sock`
- attribute present
-
-- bpo-34769: Fix for async generators not finalizing when event loop is in
- debug mode and garbage collector runs in another thread.
-
-- bpo-34936: Fix ``TclError`` in ``tkinter.Spinbox.selection_element()``.
- Patch by Juliette Monsel.
-
-- bpo-34829: Add methods ``selection_from``, ``selection_range``,
- ``selection_present`` and ``selection_to`` to the ``tkinter.Spinbox`` for
- consistency with the ``tkinter.Entry`` widget. Patch by Juliette Monsel.
-
-- bpo-34911: Added *secure_protocols* argument to
- *http.cookiejar.DefaultCookiePolicy* to allow for tweaking of protocols
- and also to add support by default for *wss*, the secure websocket
- protocol.
-
-- bpo-34922: Fixed integer overflow in the :meth:`~hashlib.shake.digest()`
- and :meth:`~hashlib.shake.hexdigest()` methods for the SHAKE algorithm in
- the :mod:`hashlib` module.
-
-- bpo-34925: 25% speedup in argument parsing for the functions in the bisect
- module.
-
-- bpo-34900: Fixed :meth:`unittest.TestCase.debug` when used to call test
- methods with subtests. Patch by Bruno Oliveira.
-
-- bpo-34844: logging.Formatter enhancement - Ensure styles and fmt matches
- in logging.Formatter - Added validate method in each format style class:
- StrFormatStyle, PercentStyle, StringTemplateStyle. - This method is called
- in the constructor of logging.Formatter class - Also re-raise the KeyError
- in the format method of each style class, so it would a bit clear that
- it's an error with the invalid format fields.
-
-- bpo-34897: Adjust test.support.missing_compiler_executable check so that a
- nominal command name of "" is ignored. Patch by Michael Felt.
-
-- bpo-34871: Fix inspect module polluted ``sys.modules`` when parsing
- ``__text_signature__`` of callable.
-
-- bpo-34898: Add `mtime` argument to `gzip.compress` for reproducible
- output. Patch by Guo Ci Teo.
-
-- bpo-28441: On Cygwin and MinGW, ensure that ``sys.executable`` always
- includes the full filename in the path, including the ``.exe`` suffix
- (unless it is a symbolic link).
-
-- bpo-34866: Adding ``max_num_fields`` to ``cgi.FieldStorage`` to make DOS
- attacks harder by limiting the number of ``MiniFieldStorage`` objects
- created by ``FieldStorage``.
-
-- bpo-34711: http.server ensures it reports HTTPStatus.NOT_FOUND when the
- local path ends with "/" and is not a directory, even if the underlying OS
- (e.g. AIX) accepts such paths as a valid file reference. Patch by Michael
- Felt.
-
-- bpo-34872: Fix self-cancellation in C implementation of asyncio.Task
-
-- bpo-34849: Don't log waiting for ``selector.select`` in asyncio loop
- iteration. The waiting is pretty normal for any asyncio program, logging
- its time just adds a noise to logs without any useful information
- provided.
-
-- bpo-34022: The :envvar:`SOURCE_DATE_EPOCH` environment variable no longer
- overrides the value of the *invalidation_mode* argument to
- :func:`py_compile.compile`, and determines its default value instead.
-
-- bpo-34819: Use a monotonic clock to compute timeouts in
- :meth:`Executor.map` and :func:`as_completed`, in order to prevent
- timeouts from deviating when the system clock is adjusted.
-
-- bpo-34758: Add .wasm -> application/wasm to list of recognized file types
- and content type headers
-
-- bpo-34789: :func:`xml.sax.make_parser` now accepts any iterable as its
- *parser_list* argument. Patch by Andrés Delfino.
-
-- bpo-34334: In :class:`QueueHandler`, clear `exc_text` from
- :class:`LogRecord` to prevent traceback from being written twice.
-
-- bpo-34687: On Windows, asyncio now uses ProactorEventLoop, instead of
- SelectorEventLoop, by default.
-
-- bpo-5950: Support reading zip files with archive comments in
- :mod:`zipimport`.
-
-- bpo-32892: The parser now represents all constants as
- :class:`ast.Constant` instead of using specific constant AST types
- (``Num``, ``Str``, ``Bytes``, ``NameConstant`` and ``Ellipsis``). These
- classes are considered deprecated and will be removed in future Python
- versions.
-
-- bpo-34728: Add deprecation warning when `loop` is used in methods:
- `asyncio.sleep`, `asyncio.wait` and `asyncio.wait_for`.
-
-- bpo-34738: ZIP files created by :mod:`distutils` will now include entries
- for directories.
-
-- bpo-34659: Add an optional *initial* argument to itertools.accumulate().
-
-- bpo-29577: Support multiple mixin classes when creating Enums.
-
-- bpo-34670: Add SSLContext.post_handshake_auth and
- SSLSocket.verify_client_post_handshake for TLS 1.3's post handshake
- authentication feature.
-
-- bpo-32718: The Activate.ps1 script from venv works with PowerShell Core
- 6.1 and is now available under all operating systems.
-
-- bpo-31177: Fix bug that prevented using :meth:`reset_mock
- <unittest.mock.Mock.reset_mock>` on mock instances with deleted attributes
-
-- bpo-34672: Add a workaround, so the ``'Z'`` :func:`time.strftime`
- specifier on the musl C library can work in some cases.
-
-- bpo-34666: Implement ``asyncio.StreamWriter.awrite`` and
- ``asyncio.StreamWriter.aclose()`` coroutines. Methods are needed for
- providing a consistent stream API with control flow switched on by
- default.
-
-- bpo-6721: Acquire the logging module's commonly used internal locks while
- fork()ing to avoid deadlocks in the child process.
-
-- bpo-34658: Fix a rare interpreter unhandled exception state SystemError
- only seen when using subprocess with a preexec_fn while an after_parent
- handler has been registered with os.register_at_fork and the fork system
- call fails.
-
-- bpo-34652: Ensure :func:`os.lchmod` is never defined on Linux.
-
-- bpo-34638: Store a weak reference to stream reader to break strong
- references loop between reader and protocol. It allows to detect and
- close the socket if the stream is deleted (garbage collected) without
- ``close()`` call.
-
-- bpo-34536: `Enum._missing_`: raise `ValueError` if None returned and
- `TypeError` if non-member is returned.
-
-- bpo-34636: Speed up re scanning of many non-matching characters for \s \w
- and \d within bytes objects. (microoptimization)
-
-- bpo-24412: Add :func:`~unittest.addModuleCleanup()` and
- :meth:`~unittest.TestCase.addClassCleanup()` to unittest to support
- cleanups for :func:`~unittest.setUpModule()` and
- :meth:`~unittest.TestCase.setUpClass()`. Patch by Lisa Roach.
-
-- bpo-34630: Don't log SSL certificate errors in asyncio code (connection
- error logging is skipped already).
-
-- bpo-32490: Prevent filename duplication in :mod:`subprocess` exception
- messages. Patch by Zackery Spytz.
-
-- bpo-34363: dataclasses.asdict() and .astuple() now handle namedtuples
- correctly.
-
-- bpo-34625: Update vendorized expat library version to 2.2.6.
-
-- bpo-32270: The subprocess module no longer mistakenly closes redirected
- fds even when they were in pass_fds when outside of the default {0, 1, 2}
- set.
-
-- bpo-34622: Create a dedicated ``asyncio.CancelledError``,
- ``asyncio.InvalidStateError`` and ``asyncio.TimeoutError`` exception
- classes. Inherit them from corresponding exceptions from
- ``concurrent.futures`` package. Extract ``asyncio`` exceptions into a
- separate file.
-
-- bpo-34610: Fixed iterator of :class:`multiprocessing.managers.DictProxy`.
-
-- bpo-34421: Fix distutils logging for non-ASCII strings. This caused
- installation issues on Windows.
-
-- bpo-34604: Fix possible mojibake in the error message of `pwd.getpwnam`
- and `grp.getgrnam` using string representation because of invisible
- characters or trailing whitespaces. Patch by William Grzybowski.
-
-- bpo-30977: Make uuid.UUID use ``__slots__`` to reduce its memory
- footprint. Based on original patch by Wouter Bolsterlee.
-
-- bpo-34574: OrderedDict iterators are not exhausted during pickling
- anymore. Patch by Sergey Fedoseev.
-
-- bpo-8110: Refactored :mod:`subprocess` to check for Windows-specific
- modules rather than ``sys.platform == 'win32'``.
-
-- bpo-34530: ``distutils.spawn.find_executable()`` now falls back on
- :data:`os.defpath` if the ``PATH`` environment variable is not set.
-
-- bpo-34563: On Windows, fix multiprocessing.Connection for very large read:
- fix _winapi.PeekNamedPipe() and _winapi.ReadFile() for read larger than
- INT_MAX (usually ``2**31-1``).
-
-- bpo-34558: Correct typo in Lib/ctypes/_aix.py
-
-- bpo-34282: Move ``Enum._convert`` to ``EnumMeta._convert_`` and fix enum
- members getting shadowed by parent attributes.
-
-- bpo-22872: When the queue is closed, :exc:`ValueError` is now raised by
- :meth:`multiprocessing.Queue.put` and :meth:`multiprocessing.Queue.get`
- instead of :exc:`AssertionError` and :exc:`OSError`, respectively. Patch
- by Zackery Spytz.
-
-- bpo-34515: Fix parsing non-ASCII identifiers in
- :mod:`lib2to3.pgen2.tokenize` (PEP 3131).
-
-- bpo-13312: Avoids a possible integer underflow (undefined behavior) in the
- time module's year handling code when passed a very low negative year
- value.
-
-- bpo-34472: Improved compatibility for streamed files in :mod:`zipfile`.
- Previously an optional signature was not being written and certain ZIP
- applications were not supported. Patch by Silas Sewell.
-
-- bpo-34454: Fix the .fromisoformat() methods of datetime types crashing
- when given unicode with non-UTF-8-encodable code points. Specifically,
- datetime.fromisoformat() now accepts surrogate unicode code points used as
- the separator. Report and tests by Alexey Izbyshev, patch by Paul Ganssle.
-
-- bpo-6700: Fix inspect.getsourcelines for module level frames/tracebacks.
- Patch by Vladimir Matveev.
-
-- bpo-34171: Running the :mod:`trace` module no longer creates the
- ``trace.cover`` file.
-
-- bpo-34441: Fix crash when an ``ABC``-derived class with invalid
- ``__subclasses__`` is passed as the second argument to
- :func:`issubclass()`. Patch by Alexey Izbyshev.
-
-- bpo-34427: Fix infinite loop in ``a.extend(a)`` for ``MutableSequence``
- subclasses.
-
-- bpo-34412: Make :func:`signal.strsignal` work on HP-UX. Patch by Michael
- Osipov.
-
-- bpo-20849: shutil.copytree now accepts a new ``dirs_exist_ok`` keyword
- argument. Patch by Josh Bronson.
-
-- bpo-31715: Associate ``.mjs`` file extension with
- ``application/javascript`` MIME Type.
-
-- bpo-34384: :func:`os.readlink` now accepts :term:`path-like <path-like
- object>` and :class:`bytes` objects on Windows.
-
-- bpo-22602: The UTF-7 decoder now raises :exc:`UnicodeDecodeError` for
- ill-formed sequences starting with "+" (as specified in RFC 2152). Patch
- by Zackery Spytz.
-
-- bpo-2122: The :meth:`mmap.flush() <mmap.mmap.flush>` method now returns
- ``None`` on success, raises an exception on error under all platforms.
-
-- bpo-34341: Appending to the ZIP archive with the ZIP64 extension no longer
- grows the size of extra fields of existing entries.
-
-- bpo-34333: Fix %-formatting in :meth:`pathlib.PurePath.with_suffix` when
- formatting an error message.
-
-- bpo-18540: The :class:`imaplib.IMAP4` and :class:`imaplib.IMAP4_SSL`
- classes now resolve to the local host IP correctly when the default value
- of *host* parameter (``''``) is used.
-
-- bpo-26502: Implement ``traceback.FrameSummary.__len__()`` method to
- preserve compatibility with the old tuple API.
-
-- bpo-34318: :func:`~unittest.TestCase.assertRaises`,
- :func:`~unittest.TestCase.assertRaisesRegex`,
- :func:`~unittest.TestCase.assertWarns` and
- :func:`~unittest.TestCase.assertWarnsRegex` no longer success if the
- passed callable is None. They no longer ignore unknown keyword arguments
- in the context manager mode. A DeprecationWarning was raised in these
- cases since Python 3.5.
-
-- bpo-9372: Deprecate :meth:`__getitem__` methods of
- :class:`xml.dom.pulldom.DOMEventStream`, :class:`wsgiref.util.FileWrapper`
- and :class:`fileinput.FileInput`.
-
-- bpo-33613: Fix a race condition in ``multiprocessing.semaphore_tracker``
- when the tracker receives SIGINT before it can register signal handlers
- for ignoring it.
-
-- bpo-34248: Report filename in the exception raised when the database file
- cannot be opened by :func:`dbm.gnu.open` and :func:`dbm.ndbm.open` due to
- OS-related error. Patch by Zsolt Cserna.
-
-- bpo-33089: Add math.dist() to compute the Euclidean distance between two
- points.
-
-- bpo-34246: :meth:`smtplib.SMTP.send_message` no longer modifies the
- content of the *mail_options* argument. Patch by Pablo S. Blum de Aguiar.
-
-- bpo-31047: Fix ``ntpath.abspath`` for invalid paths on windows. Patch by
- Franz Woellert.
-
-- bpo-32321: Add pure Python fallback for functools.reduce. Patch by Robert
- Wright.
-
-- bpo-34270: The default asyncio task class now always has a name which can
- be get or set using two new methods (:meth:`~asyncio.Task.get_name()` and
- :meth:`~asyncio.Task.set_name`) and is visible in the :func:`repr` output.
- An initial name can also be set using the new ``name`` keyword argument to
- :func:`asyncio.create_task` or the
- :meth:`~asyncio.AbstractEventLoop.create_task` method of the event loop.
- If no initial name is set, the default Task implementation generates a
- name like ``Task-1`` using a monotonic counter.
-
-- bpo-34263: asyncio's event loop will not pass timeouts longer than one day
- to epoll/select etc.
-
-- bpo-34035: Fix several AttributeError in zipfile seek() methods. Patch by
- Mickaël Schoentgen.
-
-- bpo-32215: Fix performance regression in :mod:`sqlite3` when a DML
- statement appeared in a different line than the rest of the SQL query.
-
-- bpo-34075: Deprecate passing non-ThreadPoolExecutor instances to
- :meth:`AbstractEventLoop.set_default_executor`.
-
-- bpo-34251: Restore ``msilib.Win64`` to preserve backwards compatibility
- since it's already used by :mod:`distutils`' ``bdist_msi`` command.
-
-- bpo-19891: Ignore errors caused by missing / non-writable homedir while
- writing history during exit of an interactive session. Patch by Anthony
- Sottile.
-
-- bpo-33089: Enhanced math.hypot() to support more than two dimensions.
-
-- bpo-34228: tracemalloc: PYTHONTRACEMALLOC=0 environment variable and -X
- tracemalloc=0 command line option are now allowed to disable explicitly
- tracemalloc at startup.
-
-- bpo-13041: Use :func:`shutil.get_terminal_size` to calculate the terminal
- width correctly in the ``argparse.HelpFormatter`` class. Initial patch by
- Zbyszek Jędrzejewski-Szmek.
-
-- bpo-34213: Allow frozen dataclasses to have a field named "object".
- Previously this conflicted with an internal use of "object".
-
-- bpo-34052: :meth:`sqlite3.Connection.create_aggregate`,
- :meth:`sqlite3.Connection.create_function`,
- :meth:`sqlite3.Connection.set_authorizer`,
- :meth:`sqlite3.Connection.set_progress_handler` methods raises TypeError
- when unhashable objects are passed as callable. These methods now don't
- pass such objects to SQLite API. Previous behavior could lead to
- segfaults. Patch by Sergey Fedoseev.
-
-- bpo-34197: Attributes *skipinitialspace*, *doublequote* and *strict* of
- the *dialect* attribute of the :mod:`csv` reader are now :class:`bool`
- instances instead of integers 0 or 1.
-
-- bpo-32788: Errors other than :exc:`TypeError` raised in methods
- ``__adapt__()`` and ``__conform__()`` in the :mod:`sqlite3` module are now
- propagated to the user.
-
-- bpo-21446: The :2to3fixer:`reload` fixer now uses :func:`importlib.reload`
- instead of deprecated :func:`imp.reload`.
-
-- bpo-940286: pydoc's ``Helper.showtopic()`` method now prints the cross
- references of a topic correctly.
-
-- bpo-34164: :func:`base64.b32decode` could raise UnboundLocalError or
- OverflowError for incorrect padding. Now it always raises
- :exc:`base64.Error` in these cases.
-
-- bpo-33729: Fixed issues with arguments parsing in :mod:`hashlib`.
-
-- bpo-34097: ZipFile can zip files older than 1980-01-01 and newer than
- 2107-12-31 using a new ``strict_timestamps`` parameter at the cost of
- setting the timestamp to the limit.
-
-- bpo-34108: Remove extraneous CR in 2to3 refactor.
-
-- bpo-34070: Make sure to only check if the handle is a tty, when opening a
- file with ``buffering=-1``.
-
-- bpo-27494: Reverted :issue:`27494`. 2to3 rejects now a trailing comma in
- generator expressions.
-
-- bpo-33967: functools.singledispatch now raises TypeError instead of
- IndexError when no positional arguments are passed.
-
-- bpo-34041: Add the parameter *deterministic* to the
- :meth:`sqlite3.Connection.create_function` method. Patch by Sergey
- Fedoseev.
-
-- bpo-34056: Ensure the loader shim created by ``imp.load_module`` always
- returns bytes from its ``get_data()`` function. This fixes using
- ``imp.load_module`` with :pep:`552` hash-based pycs.
-
-- bpo-34054: The multiprocessing module now uses the monotonic clock
- :func:`time.monotonic` instead of the system clock :func:`time.time` to
- implement timeout.
-
-- bpo-34043: Optimize tarfile uncompress performance about 15% when gzip is
- used.
-
-- bpo-34044: ``subprocess.Popen`` now copies the *startupinfo* argument to
- leave it unchanged: it will modify the copy, so that the same
- ``STARTUPINFO`` object can be used multiple times.
-
-- bpo-34010: Fixed a performance regression for reading streams with
- tarfile. The buffered read should use a list, instead of appending to a
- bytes object.
-
-- bpo-34019: webbrowser: Correct the arguments passed to Opera Browser when
- opening a new URL using the ``webbrowser`` module. Patch by Bumsik Kim.
-
-- bpo-34003: csv.DictReader now creates dicts instead of OrderedDicts. Patch
- by Michael Selik.
-
-- bpo-33978: Closed existing logging handlers before reconfiguration via
- fileConfig and dictConfig. Patch by Karthikeyan Singaravelan.
-
-- bpo-14117: Make minor tweaks to turtledemo. The 'wikipedia' example is now
- 'rosette', describing what it draws. The 'penrose' print output is
- reduced. The'1024' output of 'tree' is eliminated.
-
-- bpo-33974: Fixed passing lists and tuples of strings containing special
- characters ``"``, ``\``, ``{``, ``}`` and ``\n`` as options to
- :mod:`~tkinter.ttk` widgets.
-
-- bpo-27500: Fix getaddrinfo to resolve IPv6 addresses correctly.
-
-- bpo-24567: Improve random.choices() to handle subnormal input weights that
- could occasionally trigger an IndexError.
-
-- bpo-33871: Fixed integer overflow in :func:`os.readv`, :func:`os.writev`,
- :func:`os.preadv` and :func:`os.pwritev` and in :func:`os.sendfile` with
- *headers* or *trailers* arguments (on BSD-based OSes and macOS).
-
-- bpo-25007: Add :func:`copy.copy` and :func:`copy.deepcopy` support to zlib
- compressors and decompressors. Patch by Zackery Spytz.
-
-- bpo-33929: multiprocessing: Fix a race condition in Popen of
- multiprocessing.popen_spawn_win32. The child process now duplicates the
- read end of pipe instead of "stealing" it. Previously, the read end of
- pipe was "stolen" by the child process, but it leaked a handle if the
- child process had been terminated before it could steal the handle from
- the parent process.
-
-- bpo-33899: Tokenize module now implicitly emits a NEWLINE when provided
- with input that does not have a trailing new line. This behavior now
- matches what the C tokenizer does internally. Contributed by Ammar Askar.
-
-- bpo-33897: Added a 'force' keyword argument to logging.basicConfig().
-
-- bpo-33695: :func:`shutil.copytree` uses :func:`os.scandir` function and
- all copy functions depending from it use cached :func:`os.stat` values.
- The speedup for copying a directory with 8000 files is around +9% on
- Linux, +20% on Windows and + 30% on a Windows SMB share. Also the number
- of :func:`os.stat` syscalls is reduced by 38% making
- :func:`shutil.copytree` especially faster on network filesystems.
- (Contributed by Giampaolo Rodola' in :issue:`33695`.)
-
-- bpo-33916: bz2 and lzma: When Decompressor.__init__() is called twice,
- free the old lock to not leak memory.
-
-- bpo-32568: Make select.epoll() and its documentation consistent regarding
- *sizehint* and *flags*.
-
-- bpo-33833: Fixed bug in asyncio where ProactorSocketTransport logs
- AssertionError if force closed during write.
-
-- bpo-33663: Convert content length to string before putting to header.
-
-- bpo-33721: :mod:`os.path` functions that return a boolean result like
- :func:`~os.path.exists`, :func:`~os.path.lexists`, :func:`~os.path.isdir`,
- :func:`~os.path.isfile`, :func:`~os.path.islink`, and
- :func:`~os.path.ismount`, and :mod:`pathlib.Path` methods that return a
- boolean result like :meth:`~pathlib.Path.exists()`,
- :meth:`~pathlib.Path.is_dir()`, :meth:`~pathlib.Path.is_file()`,
- :meth:`~pathlib.Path.is_mount()`, :meth:`~pathlib.Path.is_symlink()`,
- :meth:`~pathlib.Path.is_block_device()`,
- :meth:`~pathlib.Path.is_char_device()`, :meth:`~pathlib.Path.is_fifo()`,
- :meth:`~pathlib.Path.is_socket()` now return ``False`` instead of raising
- :exc:`ValueError` or its subclasses :exc:`UnicodeEncodeError` and
- :exc:`UnicodeDecodeError` for paths that contain characters or bytes
- unrepresentable at the OS level.
-
-- bpo-26544: Fixed implementation of :func:`platform.libc_ver`. It almost
- always returned version '2.9' for glibc.
-
-- bpo-33843: Remove deprecated ``cgi.escape``, ``cgi.parse_qs`` and
- ``cgi.parse_qsl``.
-
-- bpo-33842: Remove ``tarfile.filemode`` which is deprecated since Python
- 3.3.
-
-- bpo-30167: Prevent site.main() exception if PYTHONSTARTUP is set. Patch by
- Steve Weber.
-
-- bpo-33805: Improve error message of dataclasses.replace() when an InitVar
- is not specified
-
-- bpo-33687: Fix the call to ``os.chmod()`` for ``uu.decode()`` if a mode is
- given or decoded. Patch by Timo Furrer.
-
-- bpo-33812: Datetime instance d with non-None tzinfo, but with
- d.tzinfo.utcoffset(d) returning None is now treated as naive by the
- astimezone() method.
-
-- bpo-32108: In configparser, don't clear section when it is assigned to
- itself.
-
-- bpo-27397: Make email module properly handle invalid-length base64
- strings.
-
-- bpo-33578: Implement multibyte encoder/decoder state methods
-
-- bpo-30805: Avoid race condition with debug logging
-
-- bpo-33476: Fix _header_value_parser.py when address group is missing final
- ';'. Contributed by Enrique Perez-Terron
-
-- bpo-33694: asyncio: Fix a race condition causing data loss on
- pause_reading()/resume_reading() when using the ProactorEventLoop.
-
-- bpo-32493: Correct test for ``uuid_enc_be`` availability in
- ``configure.ac``. Patch by Michael Felt.
-
-- bpo-33792: Add asyncio.WindowsSelectorEventLoopPolicy and
- asyncio.WindowsProactorEventLoopPolicy.
-
-- bpo-33274: W3C DOM Level 1 specifies return value of
- Element.removeAttributeNode() as "The Attr node that was removed."
- xml.dom.minidom now complies with this requirement.
-
-- bpo-33778: Update ``unicodedata``'s database to Unicode version 11.0.0.
-
-- bpo-33165: Added a stacklevel parameter to logging calls to allow use of
- wrapper/helper functions for logging APIs.
-
-- bpo-33770: improve base64 exception message for encoded inputs of invalid
- length
-
-- bpo-33769: asyncio/start_tls: Fix error message; cancel callbacks in case
- of an unhandled error; mark SSLTransport as closed if it is aborted.
-
-- bpo-33767: The concatenation (``+``) and repetition (``*``) sequence
- operations now raise :exc:`TypeError` instead of :exc:`SystemError` when
- performed on :class:`mmap.mmap` objects. Patch by Zackery Spytz.
-
-- bpo-33734: asyncio/ssl: Fix AttributeError, increase default handshake
- timeout
-
-- bpo-31014: Fixed creating a controller for :mod:`webbrowser` when a user
- specifies a path to an entry in the BROWSER environment variable. Based
- on patch by John Still.
-
-- bpo-2504: Add gettext.pgettext() and variants.
-
-- bpo-33197: Add description property for _ParameterKind
-
-- bpo-32751: When cancelling the task due to a timeout,
- :meth:`asyncio.wait_for` will now wait until the cancellation is complete.
-
-- bpo-32684: Fix gather to propagate cancellation of itself even with
- return_exceptions.
-
-- bpo-33654: Support protocol type switching in SSLTransport.set_protocol().
-
-- bpo-33674: Pause the transport as early as possible to further reduce the
- risk of data_received() being called before connection_made().
-
-- bpo-33671: :func:`shutil.copyfile`, :func:`shutil.copy`,
- :func:`shutil.copy2`, :func:`shutil.copytree` and :func:`shutil.move` use
- platform-specific fast-copy syscalls on Linux and macOS in order to copy
- the file more efficiently. On Windows :func:`shutil.copyfile` uses a
- bigger default buffer size (1 MiB instead of 16 KiB) and a
- :func:`memoryview`-based variant of :func:`shutil.copyfileobj` is used.
- The speedup for copying a 512MiB file is about +26% on Linux, +50% on
- macOS and +40% on Windows. Also, much less CPU cycles are consumed.
- (Contributed by Giampaolo Rodola' in :issue:`25427`.)
-
-- bpo-33674: Fix a race condition in SSLProtocol.connection_made() of
- asyncio.sslproto: start immediately the handshake instead of using
- call_soon(). Previously, data_received() could be called before the
- handshake started, causing the handshake to hang or fail.
-
-- bpo-31647: Fixed bug where calling write_eof() on a
- _SelectorSocketTransport after it's already closed raises AttributeError.
-
-- bpo-32610: Make asyncio.all_tasks() return only pending tasks.
-
-- bpo-32410: Avoid blocking on file IO in sendfile fallback code
-
-- bpo-33469: Fix RuntimeError after closing loop that used run_in_executor
-
-- bpo-33672: Fix Task.__repr__ crash with Cython's bogus coroutines
-
-- bpo-33654: Fix transport.set_protocol() to support switching between
- asyncio.Protocol and asyncio.BufferedProtocol. Fix loop.start_tls() to
- work with asyncio.BufferedProtocols.
-
-- bpo-33652: Pickles of type variables and subscripted generics are now
- future-proof and compatible with older Python versions.
-
-- bpo-32493: Fixed :func:`uuid.uuid1` on FreeBSD.
-
-- bpo-33238: Add ``InvalidStateError`` to :mod:`concurrent.futures`.
- ``Future.set_result`` and ``Future.set_exception`` now raise
- ``InvalidStateError`` if the futures are not pending or running. Patch by
- Jason Haydaman.
-
-- bpo-33618: Finalize and document preliminary and experimental TLS 1.3
- support with OpenSSL 1.1.1
-
-- bpo-33625: Release GIL on `grp.getgrnam`, `grp.getgrgid`, `pwd.getpwnam`
- and `pwd.getpwuid` if reentrant variants of these functions are available.
- Patch by William Grzybowski.
-
-- bpo-33623: Fix possible SIGSGV when asyncio.Future is created in __del__
-
-- bpo-11874: Use a better regex when breaking usage into wrappable parts.
- Avoids bogus assertion errors from custom metavar strings.
-
-- bpo-30877: Fixed a bug in the Python implementation of the JSON decoder
- that prevented the cache of parsed strings from clearing after finishing
- the decoding. Based on patch by c-fos.
-
-- bpo-33604: Remove HMAC default to md5 marked for removal in 3.8 (removal
- originally planned in 3.6, bump to 3.8 in PR 7062).
-
-- bpo-33582: Emit a deprecation warning for inspect.formatargspec
-
-- bpo-21145: Add ``functools.cached_property`` decorator, for computed
- properties cached for the life of the instance.
-
-- bpo-33570: Change TLS 1.3 cipher suite settings for compatibility with
- OpenSSL 1.1.1-pre6 and newer. OpenSSL 1.1.1 will have TLS 1.3 ciphers
- enabled by default.
-
-- bpo-28556: Do not simplify arguments to `typing.Union`. Now
- `Union[Manager, Employee]` is not simplified to `Employee` at runtime.
- Such simplification previously caused several bugs and limited
- possibilities for introspection.
-
-- bpo-12486: :func:`tokenize.generate_tokens` is now documented as a public
- API to tokenize unicode strings. It was previously present but
- undocumented.
-
-- bpo-33540: Add a new ``block_on_close`` class attribute to
- ``ForkingMixIn`` and ``ThreadingMixIn`` classes of :mod:`socketserver`.
-
-- bpo-33548: tempfile._candidate_tempdir_list should consider common TEMP
- locations
-
-- bpo-33109: argparse subparsers are once again not required by default,
- reverting the change in behavior introduced by bpo-26510 in 3.7.0a2.
-
-- bpo-33541: Remove unused private method ``_strptime.LocaleTime.__pad``
- (a.k.a. ``_LocaleTime__pad``).
-
-- bpo-33536: dataclasses.make_dataclass now checks for invalid field names
- and duplicate fields. Also, added a check for invalid field
- specifications.
-
-- bpo-33542: Prevent ``uuid.get_node`` from using a DUID instead of a MAC on
- Windows. Patch by Zvi Effron
-
-- bpo-26819: Fix race condition with `ReadTransport.resume_reading` in
- Windows proactor event loop.
-
-- Fix failure in `typing.get_type_hints()` when ClassVar was provided as a
- string forward reference.
-
-- bpo-33516: :class:`unittest.mock.MagicMock` now supports the ``__round__``
- magic method.
-
-- bpo-28612: Added support for Site Maps to urllib's ``RobotFileParser`` as
- :meth:`RobotFileParser.site_maps()
- <urllib.robotparser.RobotFileParser.site_maps>`. Patch by Lady Red, based
- on patch by Peter Wirtz.
-
-- bpo-28167: Remove platform.linux_distribution, which was deprecated since
- 3.5.
-
-- bpo-33504: Switch the default dictionary implementation for
- :mod:`configparser` from :class:`collections.OrderedDict` to the standard
- :class:`dict` type.
-
-- bpo-33505: Optimize asyncio.ensure_future() by reordering if checks: 1.17x
- faster.
-
-- bpo-33497: Add errors param to cgi.parse_multipart and make an encoding in
- FieldStorage use the given errors (needed for Twisted). Patch by Amber
- Brown.
-
-- bpo-29235: The :class:`cProfile.Profile` class can now be used as a
- context manager. Patch by Scott Sanderson.
-
-- bpo-33495: Change dataclasses.Fields repr to use the repr of each of its
- members, instead of str. This makes it more clear what each field
- actually represents. This is especially true for the 'type' member.
-
-- bpo-26103: Correct ``inspect.isdatadescriptor`` to look for ``__set__`` or
- ``__delete__``. Patch by Aaron Hall.
-
-- bpo-29209: Removed the ``doctype()`` method and the *html* parameter of
- the constructor of :class:`~xml.etree.ElementTree.XMLParser`. The
- ``doctype()`` method defined in a subclass will no longer be called.
- Deprecated methods ``getchildren()`` and ``getiterator()`` in the
- :mod:`~xml.etree.ElementTree` module emit now a :exc:`DeprecationWarning`
- instead of :exc:`PendingDeprecationWarning`.
-
-- bpo-33453: Fix dataclasses to work if using literal string type
- annotations or if using PEP 563 "Postponed Evaluation of Annotations".
- Only specific string prefixes are detected for both ClassVar ("ClassVar"
- and "typing.ClassVar") and InitVar ("InitVar" and "dataclasses.InitVar").
-
-- bpo-28556: Minor fixes in typing module: add annotations to
- ``NamedTuple.__new__``, pass ``*args`` and ``**kwds`` in
- ``Generic.__new__``. Original PRs by Paulius Šarka and Chad Dombrova.
-
-- bpo-33365: Print the header values besides the header keys instead just
- the header keys if *debuglevel* is set to >0 in :mod:`http.client`. Patch
- by Marco Strigl.
-
-- bpo-20087: Updated alias mapping with glibc 2.27 supported locales.
-
-- bpo-33422: Fix trailing quotation marks getting deleted when looking up
- byte/string literals on pydoc. Patch by Andrés Delfino.
-
-- bpo-28167: The function ``platform.linux_distribution`` and
- ``platform.dist`` now trigger a ``DeprecationWarning`` and have been
- marked for removal in Python 3.8
-
-- bpo-33281: Fix ctypes.util.find_library regression on macOS.
-
-- bpo-33311: Text and html output generated by cgitb does not display
- parentheses if the current call is done directly in the module. Patch by
- Stéphane Blondon.
-
-- bpo-27300: The file classes in *tempfile* now accept an *errors* parameter
- that complements the already existing *encoding*. Patch by Stephan Hohe.
-
-- bpo-32933: :func:`unittest.mock.mock_open` now supports iteration over the
- file contents. Patch by Tony Flury.
-
-- bpo-33217: Raise :exc:`TypeError` when looking up non-Enum objects in Enum
- classes and Enum members.
-
-- bpo-33197: Update error message when constructing invalid
- inspect.Parameters Patch by Dong-hee Na.
-
-- bpo-33383: Fixed crash in the get() method of the :mod:`dbm.ndbm` database
- object when it is called with a single argument.
-
-- bpo-33375: The warnings module now finds the Python file associated with a
- warning from the code object, rather than the frame's global namespace.
- This is consistent with how tracebacks and pdb find filenames, and should
- work better for dynamically executed code.
-
-- bpo-33336: ``imaplib`` now allows ``MOVE`` command in ``IMAP4.uid()`` (RFC
- 6851: IMAP MOVE Extension) and potentially as a name of supported method
- of ``IMAP4`` object.
-
-- bpo-32455: Added *jump* parameter to :func:`dis.stack_effect`.
-
-- bpo-27485: Rename and deprecate undocumented functions in
- :func:`urllib.parse`.
-
-- bpo-33332: Add ``signal.valid_signals()`` to expose the POSIX sigfillset()
- functionality.
-
-- bpo-33251: `ConfigParser.items()` was fixed so that key-value pairs passed
- in via `vars` are not included in the resulting output.
-
-- bpo-33329: Fix multiprocessing regression on newer glibcs
-
-- bpo-33334: :func:`dis.stack_effect` now supports all defined opcodes
- including NOP and EXTENDED_ARG.
-
-- bpo-991266: Fix quoting of the ``Comment`` attribute of
- :class:`http.cookies.SimpleCookie`.
-
-- bpo-33131: Upgrade bundled version of pip to 10.0.1.
-
-- bpo-33308: Fixed a crash in the :mod:`parser` module when converting an ST
- object to a tree of tuples or lists with ``line_info=False`` and
- ``col_info=True``.
-
-- bpo-23403: lib2to3 now uses pickle protocol 4 for pre-computed grammars.
-
-- bpo-33266: lib2to3 now recognizes ``rf'...'`` strings.
-
-- bpo-11594: Ensure line-endings are respected when using lib2to3.
-
-- bpo-33254: Have :func:`importlib.resources.contents` and
- :meth:`importlib.abc.ResourceReader.contents` return an :term:`iterable`
- instead of an :term:`iterator`.
-
-- bpo-33265: ``contextlib.ExitStack`` and ``contextlib.AsyncExitStack`` now
- use a method instead of a wrapper function for exit callbacks.
-
-- bpo-33263: Fix FD leak in `_SelectorSocketTransport` Patch by Vlad
- Starostin.
-
-- bpo-33256: Fix display of ``<module>`` call in the html produced by
- ``cgitb.html()``. Patch by Stéphane Blondon.
-
-- bpo-33144: ``random.Random()`` and its subclassing mechanism got optimized
- to check only once at class/subclass instantiation time whether its
- ``getrandbits()`` method can be relied on by other methods, including
- ``randrange()``, for the generation of arbitrarily large random integers.
- Patch by Wolfgang Maier.
-
-- bpo-33185: Fixed regression when running pydoc with the :option:`-m`
- switch. (The regression was introduced in 3.7.0b3 by the resolution of
- :issue:`33053`)
-
- This fix also changed pydoc to add ``os.getcwd()`` to :data:`sys.path`
- when necessary, rather than adding ``"."``.
-
-- bpo-29613: Added support for the ``SameSite`` cookie flag to the
- ``http.cookies`` module.
-
-- bpo-33169: Delete entries of ``None`` in :data:`sys.path_importer_cache`
- when :meth:`importlib.machinery.invalidate_caches` is called.
-
-- bpo-33203: ``random.Random.choice()`` now raises ``IndexError`` for empty
- sequences consistently even when called from subclasses without a
- ``getrandbits()`` implementation.
-
-- bpo-33224: Update difflib.mdiff() for :pep:`479`. Convert an uncaught
- StopIteration in a generator into a return-statement.
-
-- bpo-33209: End framing at the end of C implementation of
- :func:`pickle.Pickler.dump`.
-
-- bpo-32861: The urllib.robotparser's ``__str__`` representation now
- includes wildcard entries and the "Crawl-delay" and "Request-rate" fields.
- Also removes extra newlines that were being appended to the end of the
- string. Patch by Michael Lazar.
-
-- bpo-23403: ``DEFAULT_PROTOCOL`` in :mod:`pickle` was bumped to 4. Protocol
- 4 is described in :pep:`3154` and available since Python 3.4. It offers
- better performance and smaller size compared to protocol 3 introduced in
- Python 3.0.
-
-- bpo-20104: Improved error handling and fixed a reference leak in
- :func:`os.posix_spawn()`.
-
-- bpo-33106: Deleting a key from a read-only dbm database raises module
- specific error instead of KeyError.
-
-- bpo-33175: In dataclasses, Field.__set_name__ now looks up the
- __set_name__ special method on the class, not the instance, of the default
- value.
-
-- bpo-32380: Create functools.singledispatchmethod to support generic single
- dispatch on descriptors and methods.
-
-- bpo-33141: Have Field objects pass through __set_name__ to their default
- values, if they have their own __set_name__.
-
-- bpo-33096: Allow ttk.Treeview.insert to insert iid that has a false
- boolean value. Note iid=0 and iid=False would be same. Patch by Garvit
- Khatri.
-
-- bpo-32873: Treat type variables and special typing forms as immutable by
- copy and pickle. This fixes several minor issues and inconsistencies, and
- improves backwards compatibility with Python 3.6.
-
-- bpo-33134: When computing dataclass's __hash__, use the lookup table to
- contain the function which returns the __hash__ value. This is an
- improvement over looking up a string, and then testing that string to see
- what to do.
-
-- bpo-33127: The ssl module now compiles with LibreSSL 2.7.1.
-
-- bpo-32505: Raise TypeError if a member variable of a dataclass is of type
- Field, but doesn't have a type annotation.
-
-- bpo-33078: Fix the failure on OSX caused by the tests relying on
- sem_getvalue
-
-- bpo-33116: Add 'Field' to dataclasses.__all__.
-
-- bpo-32896: Fix an error where subclassing a dataclass with a field that
- uses a default_factory would generate an incorrect class.
-
-- bpo-33100: Dataclasses: If a field has a default value that's a
- MemberDescriptorType, then it's from that field being in __slots__, not an
- actual default value.
-
-- bpo-32953: If a non-dataclass inherits from a frozen dataclass, allow
- attributes to be added to the derived class. Only attributes from the
- frozen dataclass cannot be assigned to. Require all dataclasses in a
- hierarchy to be either all frozen or all non-frozen.
-
-- bpo-33097: Raise RuntimeError when ``executor.submit`` is called during
- interpreter shutdown.
-
-- bpo-32968: Modulo and floor division involving Fraction and float should
- return float.
-
-- bpo-33061: Add missing ``NoReturn`` to ``__all__`` in typing.py
-
-- bpo-33078: Fix the size handling in multiprocessing.Queue when a pickling
- error occurs.
-
-- bpo-33064: lib2to3 now properly supports trailing commas after ``*args``
- and ``**kwargs`` in function signatures.
-
-- bpo-33056: FIX properly close leaking fds in
- concurrent.futures.ProcessPoolExecutor.
-
-- bpo-33021: Release the GIL during fstat() calls, avoiding hang of all
- threads when calling mmap.mmap(), os.urandom(), and random.seed(). Patch
- by Nir Soffer.
-
-- bpo-31804: Avoid failing in multiprocessing.Process if the standard
- streams are closed or None at exit.
-
-- bpo-33034: Providing an explicit error message when casting the port
- property to anything that is not an integer value using ``urlparse()`` and
- ``urlsplit()``. Patch by Matt Eaton.
-
-- bpo-30249: Improve struct.unpack_from() exception messages for problems
- with the buffer size and offset.
-
-- bpo-33037: Skip sending/receiving data after SSL transport closing.
-
-- bpo-27683: Fix a regression in :mod:`ipaddress` that result of
- :meth:`hosts` is empty when the network is constructed by a tuple
- containing an integer mask and only 1 bit left for addresses.
-
-- bpo-22674: Add the strsignal() function in the signal module that returns
- the system description of the given signal, as returned by strsignal(3).
-
-- bpo-32999: Fix C implementation of ``ABC.__subclasscheck__(cls,
- subclass)`` crashed when ``subclass`` is not a type object.
-
-- bpo-33009: Fix inspect.signature() for single-parameter partialmethods.
-
-- bpo-32969: Expose several missing constants in zlib and fix corresponding
- documentation.
-
-- bpo-32056: Improved exceptions raised for invalid number of channels and
- sample width when read an audio file in modules :mod:`aifc`, :mod:`wave`
- and :mod:`sunau`.
-
-- bpo-32970: Improved disassembly of the MAKE_FUNCTION instruction.
-
-- bpo-32844: Fix wrong redirection of a low descriptor (0 or 1) to stderr in
- subprocess if another low descriptor is closed.
-
-- bpo-32960: For dataclasses, disallow inheriting frozen from non-frozen
- classes, and also disallow inheriting non-frozen from frozen classes. This
- restriction will be relaxed at a future date.
-
-- bpo-32713: Fixed tarfile.itn handling of out-of-bounds float values. Patch
- by Joffrey Fuhrer.
-
-- bpo-32257: The ssl module now contains OP_NO_RENEGOTIATION constant,
- available with OpenSSL 1.1.0h or 1.1.1.
-
-- bpo-32951: Direct instantiation of SSLSocket and SSLObject objects is now
- prohibited. The constructors were never documented, tested, or designed as
- public constructors. Users were suppose to use ssl.wrap_socket() or
- SSLContext.
-
-- bpo-32929: Remove the tri-state parameter "hash", and add the boolean
- "unsafe_hash". If unsafe_hash is True, add a __hash__ function, but if a
- __hash__ exists, raise TypeError. If unsafe_hash is False, add a __hash__
- based on the values of eq= and frozen=. The unsafe_hash=False behavior is
- the same as the old hash=None behavior. unsafe_hash=False is the default,
- just as hash=None used to be.
-
-- bpo-32947: Add OP_ENABLE_MIDDLEBOX_COMPAT and test workaround for TLSv1.3
- for future compatibility with OpenSSL 1.1.1.
-
-- bpo-32146: Document the interaction between frozen executables and the
- spawn and forkserver start methods in multiprocessing.
-
-- bpo-30622: The ssl module now detects missing NPN support in LibreSSL.
-
-- bpo-32922: dbm.open() now encodes filename with the filesystem encoding
- rather than default encoding.
-
-- bpo-32759: Free unused arenas in multiprocessing.heap.
-
-- bpo-32859: In ``os.dup2``, don't check every call whether the ``dup3``
- syscall exists or not.
-
-- bpo-32556: nt._getfinalpathname, nt._getvolumepathname and
- nt._getdiskusage now correctly convert from bytes.
-
-- bpo-21060: Rewrite confusing message from setup.py upload from "No dist
- file created in earlier command" to the more helpful "Must create and
- upload files in one command".
-
-- bpo-32857: In :mod:`tkinter`, ``after_cancel(None)`` now raises a
- :exc:`ValueError` instead of canceling the first scheduled function.
- Patch by Cheryl Sabella.
-
-- bpo-32852: Make sure sys.argv remains as a list when running trace.
-
-- bpo-31333: ``_abc`` module is added. It is a speedup module with C
- implementations for various functions and methods in ``abc``. Creating an
- ABC subclass and calling ``isinstance`` or ``issubclass`` with an ABC
- subclass are up to 1.5x faster. In addition, this makes Python start-up up
- to 10% faster.
-
- Note that the new implementation hides internal registry and caches,
- previously accessible via private attributes ``_abc_registry``,
- ``_abc_cache``, and ``_abc_negative_cache``. There are three debugging
- helper methods that can be used instead ``_dump_registry``,
- ``_abc_registry_clear``, and ``_abc_caches_clear``.
-
-- bpo-32841: Fixed `asyncio.Condition` issue which silently ignored
- cancellation after notifying and cancelling a conditional lock. Patch by
- Bar Harel.
-
-- bpo-32819: ssl.match_hostname() has been simplified and no longer depends
- on re and ipaddress module for wildcard and IP addresses. Error reporting
- for invalid wildcards has been improved.
-
-- bpo-19675: ``multiprocessing.Pool`` no longer leaks processes if its
- initialization fails.
-
-- bpo-32394: socket: Remove
- TCP_FASTOPEN,TCP_KEEPCNT,TCP_KEEPIDLE,TCP_KEEPINTVL flags on older version
- Windows during run-time.
-
-- bpo-31787: Fixed refleaks of ``__init__()`` methods in various modules.
- (Contributed by Oren Milman)
-
-- bpo-30157: Fixed guessing quote and delimiter in csv.Sniffer.sniff() when
- only the last field is quoted. Patch by Jake Davis.
-
-- bpo-30688: Added support of ``\N{name}`` escapes in regular expressions.
- Based on patch by Jonathan Eunice.
-
-- bpo-32792: collections.ChainMap() preserves the order of the underlying
- mappings.
-
-- bpo-32775: :func:`fnmatch.translate()` no longer produces patterns which
- contain set operations. Sets starting with '[' or containing '--', '&&',
- '~~' or '||' will be interpreted differently in regular expressions in
- future versions. Currently they emit warnings. fnmatch.translate() now
- avoids producing patterns containing such sets by accident.
-
-- bpo-32622: Implement native fast sendfile for Windows proactor event loop.
-
-- bpo-32777: Fix a rare but potential pre-exec child process deadlock in
- subprocess on POSIX systems when marking file descriptors inheritable on
- exec in the child process. This bug appears to have been introduced in
- 3.4.
-
-- bpo-32647: The ctypes module used to depend on indirect linking for
- dlopen. The shared extension is now explicitly linked against libdl on
- platforms with dl.
-
-- bpo-32749: A :mod:`dbm.dumb` database opened with flags 'r' is now
- read-only. :func:`dbm.dumb.open` with flags 'r' and 'w' no longer creates
- a database if it does not exist.
-
-- bpo-32741: Implement ``asyncio.TimerHandle.when()`` method.
-
-- bpo-32691: Use mod_spec.parent when running modules with pdb
-
-- bpo-32734: Fixed ``asyncio.Lock()`` safety issue which allowed acquiring
- and locking the same lock multiple times, without it being free. Patch by
- Bar Harel.
-
-- bpo-32727: Do not include name field in SMTP envelope from address. Patch
- by Stéphane Wirtel
-
-- bpo-31453: Add TLSVersion constants and SSLContext.maximum_version /
- minimum_version attributes. The new API wraps OpenSSL 1.1
- https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_set_min_proto_version.html
- feature.
-
-- bpo-24334: Internal implementation details of ssl module were cleaned up.
- The SSLSocket has one less layer of indirection. Owner and session
- information are now handled by the SSLSocket and SSLObject constructor.
- Channel binding implementation has been simplified.
-
-- bpo-31848: Fix the error handling in Aifc_read.initfp() when the SSND
- chunk is not found. Patch by Zackery Spytz.
-
-- bpo-32585: Add Ttk spinbox widget to :mod:`tkinter.ttk`. Patch by Alan D
- Moore.
-
-- bpo-32512: :mod:`profile` CLI accepts `-m module_name` as an alternative
- to script path.
-
-- bpo-8525: help() on a type now displays builtin subclasses. This is
- intended primarily to help with notification of more specific exception
- subclasses.
-
- Patch by Sanyam Khurana.
-
-- bpo-31639: http.server now exposes a ThreadingHTTPServer class and uses it
- when the module is run with ``-m`` to cope with web browsers pre-opening
- sockets.
-
-- bpo-29877: compileall: import ProcessPoolExecutor only when needed,
- preventing hangs on low resource platforms
-
-- bpo-32221: Various functions returning tuple containing IPv6 addresses now
- omit ``%scope`` part since the same information is already encoded in
- *scopeid* tuple item. Especially this speeds up :func:`socket.recvfrom`
- when it receives multicast packet since useless resolving of network
- interface name is omitted.
-
-- bpo-32147: :func:`binascii.unhexlify` is now up to 2 times faster. Patch
- by Sergey Fedoseev.
-
-- bpo-30693: The TarFile class now recurses directories in a reproducible
- way.
-
-- bpo-30693: The ZipFile class now recurses directories in a reproducible
- way.
-
-- bpo-31680: Added :data:`curses.ncurses_version`.
-
-- bpo-31908: Fix output of cover files for ``trace`` module command-line
- tool. Previously emitted cover files only when ``--missing`` option was
- used. Patch by Michael Selik.
-
-- bpo-31608: Raise a ``TypeError`` instead of crashing if a
- ``collections.deque`` subclass returns a non-deque from ``__new__``. Patch
- by Oren Milman.
-
-- bpo-31425: Add support for sockets of the AF_QIPCRTR address family,
- supported by the Linux kernel. This is used to communicate with services,
- such as GPS or radio, running on Qualcomm devices. Patch by Bjorn
- Andersson.
-
-- bpo-22005: Implemented unpickling instances of
- :class:`~datetime.datetime`, :class:`~datetime.date` and
- :class:`~datetime.time` pickled by Python 2. ``encoding='latin1'`` should
- be used for successful decoding.
-
-- bpo-27645: :class:`sqlite3.Connection` now exposes a
- :class:`~sqlite3.Connection.backup` method, if the underlying SQLite
- library is at version 3.6.11 or higher. Patch by Lele Gaifax.
-
-- bpo-16865: Support arrays >=2GiB in :mod:`ctypes`. Patch by Segev Finer.
-
-- bpo-31508: Removed support of arguments in
- `tkinter.ttk.Treeview.selection`. It was deprecated in 3.6. Use
- specialized methods like `selection_set` for changing the selection.
-
-- bpo-29456: Fix bugs in hangul normalization: u1176, u11a7 and u11c3
-
-Documentation
--------------
-
-- bpo-21257: Document :func:`http.client.parse_headers`.
-
-- bpo-34764: Improve example of iter() with 2nd sentinel argument.
-
-- bpo-35564: Explicitly set master_doc variable in conf.py for compliance
- with Sphinx 2.0
-
-- bpo-35511: Specified that profile.Profile class doesn't not support enable
- or disable methods. Also, elaborated that Profile object as a context
- manager is only supported in cProfile module.
-
-- bpo-10536: Enhance the gettext docs. Patch by Éric Araujo
-
-- bpo-35089: Remove mention of ``typing.io`` and ``typing.re``. Their types
- should be imported from ``typing`` directly.
-
-- bpo-35038: Fix the documentation about an unexisting `f_restricted`
- attribute in the frame object. Patch by Stéphane Wirtel
-
-- bpo-35042: Replace PEP XYZ by the pep role and allow to use the direct
- links to the PEPs.
-
-- bpo-35044: Fix the documentation with the role ``exc`` for the
- appropriated exception. Patch by Stéphane Wirtel
-
-- bpo-35035: Rename documentation for :mod:`email.utils` to
- ``email.utils.rst``.
-
-- bpo-34967: Use app.add_object_type() instead of the deprecated Sphinx
- function app.description_unit()
-
-- bpo-34913: Add documentation about the new command line interface of the
- gzip module.
-
-- bpo-32174: chm document displays non-ASCII charaters properly on some MBCS
- Windows systems.
-
-- bpo-11233: Create availability directive for documentation. Original
- patch by Georg Brandl.
-
-- bpo-34790: Document how passing coroutines to asyncio.wait() can be
- confusing.
-
-- bpo-34552: Make clear that ``==`` operator sometimes is equivalent to
- `is`. The ``<``, ``<=``, ``>`` and ``>=`` operators are only defined where
- they make sense.
-
-- bpo-28617: Fixed info in the stdtypes docs concerning the types that
- support membership tests.
-
-- bpo-20177: Migrate datetime.date.fromtimestamp to Argument Clinic. Patch
- by Tim Hoffmann.
-
-- bpo-34065: Fix wrongly written basicConfig documentation markup syntax
-
-- bpo-33460: replaced ellipsis with correct error codes in tutorial chapter
- 3.
-
-- bpo-33847: Add '@' operator entry to index.
-
-- bpo-33409: Clarified the relationship between :pep:`538`'s
- PYTHONCOERCECLOCALE and PEP 540's PYTHONUTF8 mode.
-
-- bpo-33197: Add versionadded tag to the documentation of
- ParameterKind.description
-
-- bpo-17045: Improve the C-API doc for PyTypeObject. This includes adding
- several quick-reference tables and a lot of missing slot/typedef entries.
- The existing entries were also cleaned up with a slightly more consistent
- format.
-
-- bpo-33736: Improve the documentation of :func:`asyncio.open_connection`,
- :func:`asyncio.start_server` and their UNIX socket counterparts.
-
-- bpo-23859: Document that `asyncio.wait()` does not cancel its futures on
- timeout.
-
-- bpo-32436: Document :pep:`567` changes to asyncio.
-
-- bpo-33604: Update HMAC md5 default to a DeprecationWarning, bump removal
- to 3.8.
-
-- bpo-33594: Document ``getargspec``, ``from_function`` and ``from_builtin``
- as deprecated in their respective docstring, and include version since
- deprecation in DeprecationWarning message.
-
-- bpo-33503: Fix broken pypi link
-
-- bpo-33421: Add missing documentation for ``typing.AsyncContextManager``.
-
-- bpo-33487: BZ2file now emit a DeprecationWarning when buffering=None is
- passed, the deprecation message and documentation also now explicitly
- state it is deprecated since 3.0.
-
-- bpo-33378: Add Korean language switcher for https://docs.python.org/3/
-
-- bpo-33276: Clarify that the ``__path__`` attribute on modules cannot be
- just any value.
-
-- bpo-33201: Modernize documentation for writing C extension types.
-
-- bpo-33195: Deprecate ``Py_UNICODE`` usage in ``c-api/arg`` document.
- ``Py_UNICODE`` related APIs are deprecated since Python 3.3, but it is
- missed in the document.
-
-- bpo-33126: Document PyBuffer_ToContiguous().
-
-- bpo-27212: Modify documentation for the :func:`islice` recipe to consume
- initial values up to the start index.
-
-- bpo-28247: Update :mod:`zipapp` documentation to describe how to make
- standalone applications.
-
-- bpo-18802: Documentation changes for ipaddress. Patch by Jon Foster and
- Berker Peksag.
-
-- bpo-27428: Update documentation to clarify that ``WindowsRegistryFinder``
- implements ``MetaPathFinder``. (Patch by Himanshu Lakhara)
-
-- bpo-28124: The ssl module function ssl.wrap_socket() has been
- de-emphasized and deprecated in favor of the more secure and efficient
- SSLContext.wrap_socket() method.
-
-- bpo-17232: Clarify docs for -O and -OO. Patch by Terry Reedy.
-
-- bpo-32436: Add documentation for the contextvars module (PEP 567).
-
-- bpo-32800: Update link to w3c doc for xml default namespaces.
-
-- bpo-11015: Update :mod:`test.support` documentation.
-
-- bpo-32613: Update the faq/windows.html to use the py command from PEP 397
- instead of python.
-
-- bpo-8722: Document :meth:`__getattr__` behavior when property :meth:`get`
- method raises :exc:`AttributeError`.
-
-- bpo-32614: Modify RE examples in documentation to use raw strings to
- prevent :exc:`DeprecationWarning` and add text to REGEX HOWTO to highlight
- the deprecation.
-
-- bpo-20709: Remove the paragraph where we explain that os.utime() does not
- support a directory as path under Windows. Patch by Jan-Philip Gehrcke
-
-- bpo-32722: Remove the bad example in the tutorial of the Generator
- Expression. Patch by Stéphane Wirtel
-
-- bpo-31972: Improve docstrings for `pathlib.PurePath` subclasses.
-
-- bpo-30607: Use the externalized ``python-docs-theme`` package when
- building the documentation.
-
-- bpo-8243: Add a note about curses.addch and curses.addstr exception
- behavior when writing outside a window, or pad.
-
-- bpo-32337: Update documentation related with ``dict`` order.
-
-- bpo-25041: Document ``AF_PACKET`` in the :mod:`socket` module.
-
-- bpo-31432: Clarify meaning of CERT_NONE, CERT_OPTIONAL, and CERT_REQUIRED
- flags for ssl.SSLContext.verify_mode.
-
-Tests
------
-
-- bpo-35772: Fix sparse file tests of test_tarfile on ppc64 with the tmpfs
- filesystem. Fix the function testing if the filesystem supports sparse
- files: create a file which contains data and "holes", instead of creating
- a file which contains no data. tmpfs effective block size is a page size
- (tmpfs lives in the page cache). RHEL uses 64 KiB pages on aarch64, ppc64,
- ppc64le, only s390x and x86_64 use 4 KiB pages, whereas the test punch
- holes of 4 KiB.
-
-- bpo-35045: Make ssl tests less strict and also accept TLSv1 as system
- default. The changes unbreaks test_min_max_version on Fedora 29.
-
-- bpo-32710: ``test_asyncio/test_sendfile.py`` now resets the event loop
- policy using :func:`tearDownModule` as done in other tests, to prevent a
- warning when running tests on Windows.
-
-- bpo-33717: test.pythoninfo now logs information of all clocks, not only
- time.time() and time.perf_counter().
-
-- bpo-35488: Add a test to pathlib's Path.match() to verify it does not
- support glob-style ** recursive pattern matching.
-
-- bpo-31731: Fix a race condition in ``check_interrupted_write()`` of
- test_io: create directly the thread with SIGALRM signal blocked, rather
- than blocking the signal later from the thread. Previously, it was
- possible that the thread gets the signal before the signal is blocked.
-
-- bpo-35424: Fix test_multiprocessing_main_handling: use
- :class:`multiprocessing.Pool` with a context manager and then explicitly
- join the pool.
-
-- bpo-35519: Rename :mod:`test.bisect` module to :mod:`test.bisect_cmd` to
- avoid conflict with :mod:`bisect` module when running directly a test like
- ``./python Lib/test/test_xmlrpc.py``.
-
-- bpo-35513: Replace :func:`time.time` with :func:`time.monotonic` in tests
- to measure time delta.
-
-- bpo-34279: :func:`test.support.run_unittest` no longer raise
- :exc:`TestDidNotRun` if the test result contains skipped tests. The
- exception is now only raised if no test have been run and no test have
- been skipped.
-
-- bpo-35412: Add testcase to ``test_future4``: check unicode literal.
-
-- bpo-26704: Added test demonstrating double-patching of an instance method.
- Patch by Anthony Sottile.
-
-- bpo-33725: test_multiprocessing_fork may crash on recent versions of
- macOS. Until the issue is resolved, skip the test on macOS.
-
-- bpo-35352: Modify test_asyncio to use the certificate set from the test
- directory.
-
-- bpo-35317: Fix ``mktime()`` overflow error in ``test_email``: run
- ``test_localtime_daylight_true_dst_true()`` and
- ``test_localtime_daylight_false_dst_true()`` with a specific timezone.
-
-- bpo-21263: After several reports that test_gdb does not work properly on
- macOS and since gdb is not shipped by default anymore, test_gdb is now
- skipped on macOS when LLVM Clang has been used to compile Python. Patch by
- Lysandros Nikolaou
-
-- bpo-34279: regrtest issue a warning when no tests have been executed in a
- particular test file. Also, a new final result state is issued if no test
- have been executed across all test files. Patch by Pablo Galindo.
-
-- bpo-34962: make docstest in Doc now passes., and is enforced in CI
-
-- bpo-23596: Use argparse for the command line of the gzip module. Patch by
- Antony Lee
-
-- bpo-34537: Fix ``test_gdb.test_strings()`` when ``LC_ALL=C`` and GDB was
- compiled with Python 3.6 or earlier.
-
-- bpo-34587: test_socket: Remove RDSTest.testCongestion(). The test tries to
- fill the receiver's socket buffer and expects an error. But the RDS
- protocol doesn't require that. Moreover, the Linux implementation of RDS
- expects that the producer of the messages reduces its rate, it's not the
- role of the receiver to trigger an error. The test fails on Fedora 28 by
- design, so just remove it.
-
-- bpo-34661: Fix test_shutil if unzip doesn't support -t.
-
-- bpo-34200: Fixed non-deterministic flakiness of test_pkg by not using the
- scary test.support.module_cleanup() logic to save and restore sys.modules
- contents between test cases.
-
-- bpo-34569: The experimental PEP 554 data channels now correctly pass
- negative PyLong objects between subinterpreters on 32-bit systems. Patch
- by Michael Felt.
-
-- bpo-34594: Fix usage of hardcoded ``errno`` values in the tests.
-
-- bpo-34579: Fix test_embed for AIX Patch by Michael Felt
-
-- bpo-34542: Use 3072 RSA keys and SHA-256 signature for test certs and
- keys.
-
-- bpo-11193: Remove special condition for AIX in
- `test_subprocess.test_undecodable_env`
-
-- bpo-34347: Fix `test_utf8_mode.test_cmd_line` for AIX
-
-- bpo-34490: On AIX with AF_UNIX family sockets getsockname() does not
- provide 'sockname', so skip calls to transport.get_extra_info('sockname')
-
-- bpo-34391: Fix ftplib test for TLS 1.3 by reading from data socket.
-
-- bpo-11192: Fix `test_socket` on AIX 6.1 and later IPv6 zone id supports
- only supported by inet_pton6_zone() Switch to runtime-based
- platform.system() to establish current platform rather than build-time
- based sys.platform()
-
-- bpo-34399: Update all RSA keys and DH params to use at least 2048 bits.
-
-- bpo-34373: Fix ``test_mktime`` and ``test_pthread_getcpuclickid`` tests
- for AIX Add range checking for ``_PyTime_localtime`` for AIX Patch by
- Michael Felt
-
-- bpo-11191: Skip the distutils test 'test_search_cpp' when using XLC as
- compiler patch by aixtools (Michael Felt)
-
-- Improved an error message when mock assert_has_calls fails.
-
-- bpo-33746: Fix test_unittest when run in verbose mode.
-
-- bpo-33901: Fix test_dbm_gnu on macOS with gdbm 1.15: add a larger value to
- make sure that the file size changes.
-
-- bpo-33873: Fix a bug in ``regrtest`` that caused an extra test to run if
- --huntrleaks/-R was used. Exit with error in case that invalid parameters
- are specified to --huntrleaks/-R (at least one warmup run and one
- repetition must be used).
-
-- bpo-33562: Check that a global asyncio event loop policy is not left
- behind by any tests.
-
-- bpo-33655: Ignore test_posix_fallocate failures on BSD platforms that
- might be due to running on ZFS.
-
-- bpo-32962: Fixed test_gdb when Python is compiled with flags -mcet
- -fcf-protection -O0.
-
-- bpo-33358: Fix ``test_embed.test_pre_initialization_sys_options()`` when
- the interpreter is built with ``--enable-shared``.
-
-- bpo-32872: Avoid regrtest compatibility issue with namespace packages.
-
-- bpo-32517: Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport
- of ``KqueueSelector`` loop was not being closed.
-
-- bpo-32663: Making sure the `SMTPUTF8SimTests` class of tests gets run in
- test_smtplib.py.
-
-- bpo-27643: Test_C test case needs "signed short" bitfields, but the IBM
- XLC compiler (on AIX) does not support this Skip the code and test when
- AIX and XLC are used
-
- Applicable to Python2-2.7 and later
-
-- bpo-19417: Add test_bdb.py.
-
-- bpo-31809: Add tests to verify connection with secp ECDH curves.
-
-Build
------
-
-- bpo-34691: The _contextvars module is now built into the core Python
- library on Windows.
-
-- bpo-35683: Improved Azure Pipelines build steps and now verifying layouts
- correctly
-
-- bpo-35642: Remove asynciomodule.c from pythoncore.vcxproj
-
-- bpo-35550: Fix incorrect Solaris #ifdef checks to look for __sun && __SVR4
- instead of sun when compiling.
-
-- bpo-35499: ``make profile-opt`` no longer replaces ``CFLAGS_NODIST`` with
- ``CFLAGS``. It now adds profile-guided optimization (PGO) flags to
- ``CFLAGS_NODIST``: existing ``CFLAGS_NODIST`` flags are kept.
-
-- bpo-35257: Avoid leaking the linker flags from Link Time Optimizations
- (LTO) into distutils when compiling C extensions.
-
-- bpo-35351: When building Python with clang and LTO, LTO flags are no
- longer passed into CFLAGS to build third-party C extensions through
- distutils.
-
-- bpo-35139: Fix a compiler error when statically linking `pyexpat` in
- `Modules/Setup`.
-
-- bpo-35059: PCbuild: Set InlineFunctionExpansion to OnlyExplicitInline
- ("/Ob1" option) in pyproject.props in Debug mode to expand functions
- marked as inline. This change should make Python compiled in Debug mode a
- little bit faster on Windows.
-
-- bpo-35011: Restores the use of pyexpatns.h to isolate our embedded copy of
- the expat C library so that its symbols do not conflict at link or dynamic
- loading time with an embedding application or other extension modules with
- their own version of libexpat.
-
-- bpo-28015: Have --with-lto works correctly with clang.
-
-- bpo-34765: Update the outdated install-sh file to the latest revision from
- automake v1.16.1
-
-- bpo-34585: Check for floating-point byte order in configure.ac using
- compilation tests instead of executing code, so that these checks work in
- cross-compiled builds.
-
-- bpo-34710: Fixed SSL module build with OpenSSL & pedantic CFLAGS.
-
-- bpo-34582: Add JUnit XML output for regression tests and update Azure
- DevOps builds.
-
-- bpo-34081: Make Sphinx warnings as errors in the Docs Makefile.
-
-- bpo-34555: Fix for case where it was not possible to have both
- ``HAVE_LINUX_VM_SOCKETS_H`` and ``HAVE_SOCKADDR_ALG`` be undefined.
-
-- bpo-33015: Fix an undefined behaviour in the pthread implementation of
- :c:func:`PyThread_start_new_thread`: add a function wrapper to always
- return ``NULL``.
-
-- bpo-34245: The Python shared library is now installed with write
- permission (mode 0755), which is the standard way of installing such
- libraries.
-
-- bpo-34121: Fix detection of C11 atomic support on clang.
-
-- bpo-32430: Rename Modules/Setup.dist to Modules/Setup, and remove the
- necessity to copy the former manually to the latter when updating the
- local source tree.
-
-- bpo-30345: Add -g to LDFLAGS when compiling with LTO to get debug symbols.
-
-- bpo-5755: Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from
- ``OPT``. This option emitted annoying warnings when building extension
- modules written in C++.
-
-- bpo-33614: Ensures module definition files for the stable ABI on Windows
- are correctly regenerated.
-
-- bpo-33648: The --with-c-locale-warning configuration flag has been
- removed. It has had no effect for about a year.
-
-- bpo-33522: Enable CI builds on Visual Studio Team Services at
- https://python.visualstudio.com/cpython
-
-- bpo-33512: configure's check for "long double" has been simplified
-
-- bpo-33483: C compiler is now correctly detected from the standard
- environment variables. --without-gcc and --with-icc options have been
- removed.
-
-- bpo-33394: Enable the verbose build for extension modules, when GNU make
- is passed macros on the command line.
-
-- bpo-33393: Update config.guess and config.sub files.
-
-- bpo-33377: Add new triplets for mips r6 and riscv variants (used in
- extension suffixes).
-
-- bpo-32232: By default, modules configured in `Modules/Setup` are no longer
- built with `-DPy_BUILD_CORE`. Instead, modules that specifically need that
- preprocessor definition include it in their individual entries.
-
-- bpo-33182: The embedding tests can once again be built with clang 6.0
-
-- bpo-33163: Upgrade pip to 9.0.3 and setuptools to v39.0.1.
-
-- bpo-33012: gcc 8 has added a new warning heuristic to detect invalid
- function casts and a stock python build seems to hit that warning quite
- often. The most common is the cast of a METH_NOARGS function (that uses
- just one argument) to a PyCFunction. Fix this by adding a dummy argument
- to all functions that implement METH_NOARGS.
-
-- bpo-32898: Fix the python debug build when using COUNT_ALLOCS.
-
-- bpo-29442: Replace optparse with argparse in setup.py
-
-Windows
--------
-
-- bpo-35890: Fix API calling consistency of GetVersionEx and wcstok.
-
-- bpo-32560: The ``py`` launcher now forwards its ``STARTUPINFO`` structure
- to child processes.
-
-- bpo-35854: Fix EnvBuilder and --symlinks in venv on Windows
-
-- bpo-35811: Avoid propagating venv settings when launching via py.exe
-
-- bpo-35797: Fix default executable used by the multiprocessing module
-
-- bpo-35758: Allow building on ARM with MSVC.
-
-- bpo-29734: Fix handle leaks in os.stat on Windows.
-
-- bpo-35596: Use unchecked PYCs for the embeddable distro to avoid zipimport
- restrictions.
-
-- bpo-35596: Fix vcruntime140.dll being added to embeddable distro multiple
- times.
-
-- bpo-35402: Update Windows build to use Tcl and Tk 8.6.9
-
-- bpo-35401: Updates Windows build to OpenSSL 1.1.0j
-
-- bpo-34977: venv on Windows will now use a python.exe redirector rather
- than copying the actual binaries from the base environment.
-
-- bpo-34977: Adds support for building a Windows App Store package
-
-- bpo-35067: Remove _distutils_findvs module and use vswhere.exe instead.
-
-- bpo-32557: Allow shutil.disk_usage to take a file path on Windows
-
-- bpo-34770: Fix a possible null pointer dereference in pyshellext.cpp.
-
-- bpo-34603: Fix returning structs from functions produced by MSVC
-
-- bpo-34581: Guard MSVC-specific code in socketmodule.c with ``#ifdef
- _MSC_VER``.
-
-- bpo-34532: Fixes exit code of list version arguments for py.exe.
-
-- bpo-34062: Fixed the '--list' and '--list-paths' arguments for the py.exe
- launcher
-
-- bpo-34225: Ensure INCLUDE and LIB directories do not end with a backslash.
-
-- bpo-34011: A suite of code has been changed which copied across DLLs and
- init.tcl from the running Python location into a venv being created. These
- copies are needed only when running from a Python source build, and the
- copying code is now only run when that is the case, rather than whenever a
- venv is created.
-
-- bpo-34006: Revert line length limit for Windows help docs. The line-length
- limit is not needed because the pages appear in a separate app rather than
- on a browser tab. It can also interact badly with the DPI setting.
-
-- bpo-31546: Restore running PyOS_InputHook while waiting for user input at
- the prompt. The restores integration of interactive GUI windows (such as
- Matplotlib figures) with the prompt on Windows.
-
-- bpo-30237: Output error when ReadConsole is canceled by
- CancelSynchronousIo instead of crashing.
-
-- bpo-33895: GIL is released while calling functions that acquire Windows
- loader lock.
-
-- bpo-33720: Reduces maximum marshal recursion depth on release builds.
-
-- bpo-29097: Fix bug where :meth:`datetime.fromtimestamp` erroneously throws
- an :exc:`OSError` on Windows for values between 0 and 86400. Patch by
- Ammar Askar.
-
-- bpo-33316: PyThread_release_lock always fails
-
-- bpo-33184: Update Windows installer to use OpenSSL 1.1.0h.
-
-- bpo-32890: Fix usage of GetLastError() instead of errno in os.execve() and
- os.truncate().
-
-- bpo-33016: Fix potential use of uninitialized memory in
- nt._getfinalpathname
-
-- bpo-32903: Fix a memory leak in os.chdir() on Windows if the current
- directory is set to a UNC path.
-
-- bpo-32901: Update Tcl and Tk versions to 8.6.8
-
-- bpo-31966: Fixed WindowsConsoleIO.write() for writing empty data.
-
-- bpo-32409: Ensures activate.bat can handle Unicode contents.
-
-- bpo-32457: Improves handling of denormalized executable path when
- launching Python.
-
-- bpo-32370: Use the correct encoding for ipconfig output in the uuid
- module. Patch by Segev Finer.
-
-- bpo-29248: Fix :func:`os.readlink` on Windows, which was mistakenly
- treating the ``PrintNameOffset`` field of the reparse data buffer as a
- number of characters instead of bytes. Patch by Craig Holmquist and SSE4.
-
-- bpo-1104: Correctly handle string length in
- ``msilib.SummaryInfo.GetProperty()`` to prevent it from truncating the
- last character.
-
-macOS
------
-
-- bpo-35401: Update macOS installer to use OpenSSL 1.1.0j.
-
-- bpo-35025: Properly guard the use of the ``CLOCK_GETTIME`` et al. macros
- in ``timemodule`` on macOS.
-
-- bpo-24658: On macOS, fix reading from and writing into a file with a size
- larger than 2 GiB.
-
-- bpo-34405: Update to OpenSSL 1.1.0i for macOS installer builds.
-
-- bpo-33635: In macOS stat on some file descriptors (/dev/fd/3 f.e) will
- result in bad file descriptor OSError. Guard against this exception was
- added in is_dir, is_file and similar methods. DirEntry.is_dir can also
- throw this exception so _RecursiveWildcardSelector._iterate_directories
- was also extended with the same error ignoring pattern.
-
-- bpo-13631: The .editrc file in user's home directory is now processed
- correctly during the readline initialization through editline emulation on
- macOS.
-
-- bpo-33184: Update macOS installer build to use OpenSSL 1.1.0h.
-
-- bpo-32726: Build and link with private copy of Tcl/Tk 8.6 for the macOS
- 10.6+ installer. The 10.9+ installer variant already does this. This
- means that the Python 3.7 provided by the python.org macOS installers no
- longer need or use any external versions of Tcl/Tk, either system-provided
- or user-installed, such as ActiveTcl.
-
-- bpo-32901: Update macOS 10.9+ installer to Tcl/Tk 8.6.8.
-
-- bpo-31903: In :mod:`_scproxy`, drop the GIL when calling into
- ``SystemConfiguration`` to avoid deadlocks.
-
-IDLE
-----
-
-- bpo-35770: IDLE macosx deletes Options => Configure IDLE. It previously
- deleted Window => Zoom Height by mistake. (Zoom Height is now on the
- Options menu). On Mac, the settings dialog is accessed via Preferences on
- the IDLE menu.
-
-- bpo-35769: Change IDLE's new file name from 'Untitled' to 'untitled'
-
-- bpo-35660: Fix imports in idlelib.window.
-
-- bpo-35641: Proper format `calltip` when the function has no docstring.
-
-- bpo-33987: Use ttk Frame for ttk widgets.
-
-- bpo-34055: Fix erroneous 'smart' indents and newlines in IDLE Shell.
-
-- bpo-35591: Find Selection now works when selection not found.
-
-- bpo-35196: Speed up squeezer line counting.
-
-- bpo-35598: Update config_key: use PEP 8 names and ttk widgets, make some
- objects global, and add tests.
-
-- bpo-28097: Add Previous/Next History entries to Shell menu.
-
-- bpo-35208: Squeezer now properly counts wrapped lines before newlines.
-
-- bpo-35555: Gray out Code Context menu entry when it's not applicable.
-
-- bpo-35521: Document the IDLE editor code context feature. Add some
- internal references within the IDLE doc.
-
-- bpo-22703: The Code Context menu label now toggles between Show/Hide Code
- Context. The Zoom Height menu now toggles between Zoom/Restore Height.
- Zoom Height has moved from the Window menu to the Options menu.
-
-- bpo-35213: Where appropriate, use 'macOS' in idlelib.
-
-- bpo-34864: On macOS, warn if the system preference "Prefer tabs when
- opening documents" is set to "Always".
-
-- bpo-34864: Document two IDLE on MacOS issues. The System Preferences Dock
- "prefer tabs always" setting disables some IDLE features. Menus are a bit
- different than as described for Windows and Linux.
-
-- bpo-35202: Remove unused imports from lib/idlelib
-
-- bpo-33000: Document that IDLE's shell has no line limit. A program that
- runs indefinitely can overfill memory.
-
-- bpo-23220: Explain how IDLE's Shell displays output.
-
-- bpo-35099: Improve the doc about IDLE running user code. The section is
- renamed from "IDLE -- console differences" is renamed "Running user code".
- It mostly covers the implications of using custom sys.stdxxx objects.
-
-- bpo-35097: Add IDLE doc subsection explaining editor windows. Topics
- include opening, title and status bar, .py* extension, and running.
-
-- bpo-35093: Document the IDLE document viewer in the IDLE doc. Add a
- paragraph in "Help and preferences", "Help sources" subsection.
-
-- bpo-35088: Update idlelib.help.copy_string docstring. We now use git and
- backporting instead of hg and forward merging.
-
-- bpo-35087: Update idlelib help files for the current doc build. The main
- change is the elimination of chapter-section numbers.
-
-- bpo-34548: Use configured color theme for read-only text views.
-
-- bpo-1529353: Enable "squeezing" of long outputs in the shell, to avoid
- performance degradation and to clean up the history without losing it.
- Squeezed outputs may be copied, viewed in a separate window, and
- "unsqueezed".
-
-- bpo-34047: Fixed mousewheel scrolling direction on macOS.
-
-- bpo-34275: Make IDLE calltips always visible on Mac. Some MacOS-tk
- combinations need .update_idletasks(). Patch by Kevin Walzer.
-
-- bpo-34120: Fix unresponsiveness after closing certain windows and dialogs.
-
-- bpo-33975: Avoid small type when running htests. Since part of the purpose
- of human-viewed tests is to determine that widgets look right, it is
- important that they look the same for testing as when running IDLE.
-
-- bpo-33905: Add test for idlelib.stackview.StackBrowser.
-
-- bpo-33924: Change mainmenu.menudefs key 'windows' to 'window'. Every other
- menudef key is lowercase version of main menu entry.
-
-- bpo-33906: Rename idlelib.windows as window Match Window on the main menu
- and remove last plural module name.
-
-- bpo-33917: Fix and document idlelib/idle_test/template.py. The revised
- file compiles, runs, and tests OK. idle_test/README.txt explains how to
- use it to create new IDLE test files.
-
-- bpo-33904: IDLE: In rstrip, rename class RstripExtension as Rstrip
-
-- bpo-33907: For consistency and clarity, rename an IDLE module and classes.
- Module calltips and its class CallTips are now calltip and Calltip. In
- module calltip_w, class CallTip is now CalltipWindow.
-
-- bpo-33856: Add "help" in the welcome message of IDLE
-
-- bpo-33839: IDLE: refactor ToolTip and CallTip and add documentation and
- tests
-
-- bpo-33855: Minimally test all IDLE modules. Add missing files, import
- module, instantiate classes, and check coverage. Check existing files.
-
-- bpo-33656: On Windows, add API call saying that tk scales for DPI. On
- Windows 8.1+ or 10, with DPI compatibility properties of the Python binary
- unchanged, and a monitor resolution greater than 96 DPI, this should make
- text and lines sharper. It should otherwise have no effect.
-
-- bpo-33768: Clicking on a context line moves that line to the top of the
- editor window.
-
-- bpo-33763: IDLE: Use read-only text widget for code context instead of
- label widget.
-
-- bpo-33664: Scroll IDLE editor text by lines. Previously, the mouse wheel
- and scrollbar slider moved text by a fixed number of pixels, resulting in
- partial lines at the top of the editor box. The change also applies to
- the shell and grep output windows, but not to read-only text views.
-
-- bpo-33679: Enable theme-specific color configuration for Code Context. Use
- the Highlights tab to see the setting for built-in themes or add settings
- to custom themes.
-
-- bpo-33642: Display up to maxlines non-blank lines for Code Context. If
- there is no current context, show a single blank line.
-
-- bpo-33628: IDLE: Cleanup codecontext.py and its test.
-
-- bpo-33564: IDLE's code context now recognizes async as a block opener.
-
-- bpo-21474: Update word/identifier definition from ascii to unicode. In
- text and entry boxes, this affects selection by double-click, movement
- left/right by control-left/right, and deletion left/right by
- control-BACKSPACE/DEL.
-
-- bpo-33204: IDLE: consistently color invalid string prefixes. A 'u' string
- prefix cannot be paired with either 'r' or 'f'. Consistently color as much
- of the prefix, starting at the right, as is valid. Revise and extend
- colorizer test.
-
-- bpo-32984: Set ``__file__`` while running a startup file. Like Python,
- IDLE optionally runs one startup file in the Shell window before
- presenting the first interactive input prompt. For IDLE, ``-s`` runs a
- file named in environmental variable :envvar:`IDLESTARTUP` or
- :envvar:`PYTHONSTARTUP`; ``-r file`` runs ``file``. Python sets
- ``__file__`` to the startup file name before running the file and unsets
- it before the first prompt. IDLE now does the same when run normally,
- without the ``-n`` option.
-
-- bpo-32940: Simplify and rename StringTranslatePseudoMapping in pyparse.
-
-- bpo-32916: Change ``str`` to ``code`` in pyparse.
-
-- bpo-32905: Remove unused code in pyparse module.
-
-- bpo-32874: Add tests for pyparse.
-
-- bpo-32837: Using the system and place-dependent default encoding for
- open() is a bad idea for IDLE's system and location-independent files.
-
-- bpo-32826: Add "encoding=utf-8" to open() in IDLE's test_help_about. GUI
- test test_file_buttons() only looks at initial ascii-only lines, but
- failed on systems where open() defaults to 'ascii' because readline()
- internally reads and decodes far enough ahead to encounter a non-ascii
- character in CREDITS.txt.
-
-- bpo-32831: Add docstrings and tests for codecontext.
-
-- bpo-32765: Update configdialog General tab docstring to add new widgets to
- the widget list.
-
-Tools/Demos
------------
-
-- bpo-35884: Add a benchmark script for timing various ways to access
- variables: ``Tools/scripts/var_access_benchmark.py``.
-
-- bpo-34989: python-gdb.py now handles errors on computing the line number
- of a Python frame.
-
-- bpo-20260: Argument Clinic now has non-bitwise unsigned int converters.
-
-- bpo-32962: python-gdb now catches ``UnicodeDecodeError`` exceptions when
- calling ``string()``.
-
-- bpo-32962: python-gdb now catches ValueError on read_var(): when Python
- has no debug symbols for example.
-
-- bpo-33189: :program:`pygettext.py` now recognizes only literal strings as
- docstrings and translatable strings, and rejects bytes literals and
- f-string expressions.
-
-- bpo-31920: Fixed handling directories as arguments in the ``pygettext``
- script. Based on patch by Oleg Krasnikov.
-
-- bpo-29673: Fix pystackv and pystack gdbinit macros.
-
-- bpo-25427: Remove the pyvenv script in favor of ``python3 -m venv`` in
- order to lower confusion as to what Python interpreter a virtual
- environment will be created for.
-
-- bpo-32885: Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disable
- automatic backup creation (files with ``~`` suffix).
-
-- bpo-32222: Fix pygettext not extracting docstrings for functions with type
- annotated arguments. Patch by Toby Harradine.
-
-- bpo-31583: Fix 2to3 for using with --add-suffix option but without
- --output-dir option for relative path to files in current directory.
-
-C API
------
-
-- bpo-35713: The :c:func:`PyByteArray_Init` and :c:func:`PyByteArray_Fini`
- functions have been removed. They did nothing since Python 2.7.4 and
- Python 3.2.0, were excluded from the limited API (stable ABI), and were
- not documented.
-
-- bpo-33817: Fixed :c:func:`_PyBytes_Resize` for empty bytes objects.
-
-- bpo-35322: Fix memory leak in :c:func:`PyUnicode_EncodeLocale` and
- :c:func:`PyUnicode_EncodeFSDefault` on error handling.
-
-- bpo-35059: The following C macros have been converted to static inline
- functions: :c:func:`Py_INCREF`, :c:func:`Py_DECREF`, :c:func:`Py_XINCREF`,
- :c:func:`Py_XDECREF`, :c:func:`PyObject_INIT`,
- :c:func:`PyObject_INIT_VAR`.
-
-- bpo-35296: ``make install`` now also installs the internal API:
- ``Include/internal/*.h`` header files.
-
-- bpo-35081: Internal APIs surrounded by ``#ifdef Py_BUILD_CORE`` have been
- moved from ``Include/*.h`` headers to new header files
- ``Include/internal/pycore_*.h``.
-
-- bpo-35259: Conditionally declare :c:func:`Py_FinalizeEx()` (new in 3.6)
- based on Py_LIMITED_API. Patch by Arthur Neufeld.
-
-- bpo-35081: The :c:func:`_PyObject_GC_TRACK` and
- :c:func:`_PyObject_GC_UNTRACK` macros have been removed from the public C
- API.
-
-- bpo-35134: Creation of a new ``Include/cpython/`` subdirectory.
-
-- bpo-34725: Adds _Py_SetProgramFullPath so embedders may override
- sys.executable
-
-- bpo-34910: Ensure that :c:func:`PyObject_Print` always returns ``-1`` on
- error. Patch by Zackery Spytz.
-
-- bpo-34523: Py_DecodeLocale() and Py_EncodeLocale() now use the UTF-8
- encoding on Windows if Py_LegacyWindowsFSEncodingFlag is zero.
-
-- bpo-34193: Fix pluralization in TypeError messages in getargs.c and
- typeobject.c: '1 argument' instead of '1 arguments' and '1 element'
- instead of '1 elements'.
-
-- bpo-34127: Return grammatically correct error message based on argument
- count. Patch by Karthikeyan Singaravelan.
-
-- bpo-23927: Fixed :exc:`SystemError` in
- :c:func:`PyArg_ParseTupleAndKeywords` when the ``w*`` format unit is used
- for optional parameter.
-
-- bpo-32455: Added :c:func:`PyCompile_OpcodeStackEffectWithJump`.
-
-- bpo-34008: Py_Main() can again be called after Py_Initialize(), as in
- Python 3.6.
-
-- bpo-32500: Fixed error messages for :c:func:`PySequence_Size`,
- :c:func:`PySequence_GetItem`, :c:func:`PySequence_SetItem` and
- :c:func:`PySequence_DelItem` called with a mapping and
- :c:func:`PyMapping_Size` called with a sequence.
-
-- bpo-33818: :c:func:`PyExceptionClass_Name` will now return ``const char
- *`` instead of ``char *``.
-
-- bpo-33042: Embedding applications may once again call
- PySys_ResetWarnOptions, PySys_AddWarnOption, and PySys_AddXOption prior to
- calling Py_Initialize.
-
-- bpo-32374: Document that m_traverse for multi-phase initialized modules
- can be called with m_state=NULL, and add a sanity check
-
-- bpo-30863: :c:func:`PyUnicode_AsWideChar` and
- :c:func:`PyUnicode_AsWideCharString` no longer cache the ``wchar_t*``
- representation of string objects.
-
-
-What's New in Python 3.7.0 final?
-=================================
-
-*Release date: 2018-06-27*
-
-Library
--------
-
-- bpo-33851: Fix :func:`ast.get_docstring` for a node that lacks a
- docstring.
-
-C API
------
-
-- bpo-33932: Calling Py_Initialize() twice does nothing, instead of failing
- with a fatal error: restore the Python 3.6 behaviour.
-
-
-What's New in Python 3.7.0 release candidate 1?
-===============================================
-
-*Release date: 2018-06-12*
-
-Core and Builtins
------------------
-
-- bpo-33803: Fix a crash in hamt.c caused by enabling GC tracking for an
- object that hadn't all of its fields set to NULL.
-
-- bpo-33706: Fix a crash in Python initialization when parsing the command
- line options. Thanks Christoph Gohlke for the bug report and the fix!
-
-- bpo-30654: Fixed reset of the SIGINT handler to SIG_DFL on interpreter
- shutdown even when there was a custom handler set previously. Patch by
- Philipp Kerling.
-
-- bpo-31849: Fix signed/unsigned comparison warning in pyhash.c.
-
-Library
--------
-
-- bpo-30167: Prevent site.main() exception if PYTHONSTARTUP is set. Patch by
- Steve Weber.
-
-- bpo-33812: Datetime instance d with non-None tzinfo, but with
- d.tzinfo.utcoffset(d) returning None is now treated as naive by the
- astimezone() method.
-
-- bpo-30805: Avoid race condition with debug logging
-
-- bpo-33694: asyncio: Fix a race condition causing data loss on
- pause_reading()/resume_reading() when using the ProactorEventLoop.
-
-- bpo-32493: Correct test for ``uuid_enc_be`` availability in
- ``configure.ac``. Patch by Michael Felt.
-
-- bpo-33792: Add asyncio.WindowsSelectorEventLoopPolicy and
- asyncio.WindowsProactorEventLoopPolicy.
-
-- bpo-33778: Update ``unicodedata``'s database to Unicode version 11.0.0.
-
-- bpo-33770: improve base64 exception message for encoded inputs of invalid
- length
-
-- bpo-33769: asyncio/start_tls: Fix error message; cancel callbacks in case
- of an unhandled error; mark SSLTransport as closed if it is aborted.
-
-- bpo-33767: The concatenation (``+``) and repetition (``*``) sequence
- operations now raise :exc:`TypeError` instead of :exc:`SystemError` when
- performed on :class:`mmap.mmap` objects. Patch by Zackery Spytz.
-
-- bpo-33734: asyncio/ssl: Fix AttributeError, increase default handshake
- timeout
-
-- bpo-11874: Use a better regex when breaking usage into wrappable parts.
- Avoids bogus assertion errors from custom metavar strings.
-
-- bpo-33582: Emit a deprecation warning for inspect.formatargspec
-
-Documentation
--------------
-
-- bpo-33409: Clarified the relationship between :pep:`538`'s
- PYTHONCOERCECLOCALE and PEP 540's PYTHONUTF8 mode.
-
-- bpo-33736: Improve the documentation of :func:`asyncio.open_connection`,
- :func:`asyncio.start_server` and their UNIX socket counterparts.
-
-- bpo-31432: Clarify meaning of CERT_NONE, CERT_OPTIONAL, and CERT_REQUIRED
- flags for ssl.SSLContext.verify_mode.
-
-Build
------
-
-- bpo-5755: Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from
- ``OPT``. This option emitted annoying warnings when building extension
- modules written in C++.
-
-Windows
--------
-
-- bpo-33720: Reduces maximum marshal recursion depth on release builds.
-
-IDLE
-----
-
-- bpo-33656: On Windows, add API call saying that tk scales for DPI. On
- Windows 8.1+ or 10, with DPI compatibility properties of the Python binary
- unchanged, and a monitor resolution greater than 96 DPI, this should make
- text and lines sharper. It should otherwise have no effect.
-
-- bpo-33768: Clicking on a context line moves that line to the top of the
- editor window.
-
-- bpo-33763: IDLE: Use read-only text widget for code context instead of
- label widget.
-
-- bpo-33664: Scroll IDLE editor text by lines. Previously, the mouse wheel
- and scrollbar slider moved text by a fixed number of pixels, resulting in
- partial lines at the top of the editor box. The change also applies to
- the shell and grep output windows, but not to read-only text views.
-
-- bpo-33679: Enable theme-specific color configuration for Code Context. Use
- the Highlights tab to see the setting for built-in themes or add settings
- to custom themes.
-
-- bpo-33642: Display up to maxlines non-blank lines for Code Context. If
- there is no current context, show a single blank line.
-
-
-What's New in Python 3.7.0 beta 5?
-==================================
-
-*Release date: 2018-05-30*
-
-Core and Builtins
------------------
-
-- bpo-33622: Fixed a leak when the garbage collector fails to add an object
- with the ``__del__`` method or referenced by it into the
- :data:`gc.garbage` list. :c:func:`PyGC_Collect` can now be called when an
- exception is set and preserves it.
-
-- bpo-33509: Fix module_globals parameter of warnings.warn_explicit(): don't
- crash if module_globals is not a dict.
-
-- bpo-20104: The new `os.posix_spawn` added in 3.7.0b1 was removed as we are
- still working on what the API should look like. Expect this in 3.8
- instead.
-
-- bpo-33475: Fixed miscellaneous bugs in converting annotations to strings
- and optimized parentheses in the string representation.
-
-- bpo-33391: Fix a leak in set_symmetric_difference().
-
-- bpo-28055: Fix unaligned accesses in siphash24(). Patch by Rolf Eike Beer.
-
-- bpo-32911: Due to unexpected compatibility issues discovered during
- downstream beta testing, reverted :issue:`29463`. ``docstring`` field is
- removed from Module, ClassDef, FunctionDef, and AsyncFunctionDef ast nodes
- which was added in 3.7a1. Docstring expression is restored as a first
- statement in their body. Based on patch by Inada Naoki.
-
-- bpo-21983: Fix a crash in `ctypes.cast()` in case the type argument is a
- ctypes structured data type. Patch by Eryk Sun and Oren Milman.
-
-Library
--------
-
-- bpo-32751: When cancelling the task due to a timeout,
- :meth:`asyncio.wait_for` will now wait until the cancellation is complete.
-
-- bpo-32684: Fix gather to propagate cancellation of itself even with
- return_exceptions.
-
-- bpo-33654: Support protocol type switching in SSLTransport.set_protocol().
-
-- bpo-33674: Pause the transport as early as possible to further reduce the
- risk of data_received() being called before connection_made().
-
-- bpo-33674: Fix a race condition in SSLProtocol.connection_made() of
- asyncio.sslproto: start immediately the handshake instead of using
- call_soon(). Previously, data_received() could be called before the
- handshake started, causing the handshake to hang or fail.
-
-- bpo-31647: Fixed bug where calling write_eof() on a
- _SelectorSocketTransport after it's already closed raises AttributeError.
-
-- bpo-32610: Make asyncio.all_tasks() return only pending tasks.
-
-- bpo-32410: Avoid blocking on file IO in sendfile fallback code
-
-- bpo-33469: Fix RuntimeError after closing loop that used run_in_executor
-
-- bpo-33672: Fix Task.__repr__ crash with Cython's bogus coroutines
-
-- bpo-33654: Fix transport.set_protocol() to support switching between
- asyncio.Protocol and asyncio.BufferedProtocol. Fix loop.start_tls() to
- work with asyncio.BufferedProtocols.
-
-- bpo-33652: Pickles of type variables and subscripted generics are now
- future-proof and compatible with older Python versions.
-
-- bpo-32493: Fixed :func:`uuid.uuid1` on FreeBSD.
-
-- bpo-33618: Finalize and document preliminary and experimental TLS 1.3
- support with OpenSSL 1.1.1
-
-- bpo-33623: Fix possible SIGSGV when asyncio.Future is created in __del__
-
-- bpo-30877: Fixed a bug in the Python implementation of the JSON decoder
- that prevented the cache of parsed strings from clearing after finishing
- the decoding. Based on patch by c-fos.
-
-- bpo-33570: Change TLS 1.3 cipher suite settings for compatibility with
- OpenSSL 1.1.1-pre6 and newer. OpenSSL 1.1.1 will have TLS 1.3 ciphers
- enabled by default.
-
-- bpo-28556: Do not simplify arguments to `typing.Union`. Now
- `Union[Manager, Employee]` is not simplified to `Employee` at runtime.
- Such simplification previously caused several bugs and limited
- possibilities for introspection.
-
-- bpo-33540: Add a new ``block_on_close`` class attribute to
- ``ForkingMixIn`` and ``ThreadingMixIn`` classes of :mod:`socketserver`.
-
-- bpo-33548: tempfile._candidate_tempdir_list should consider common TEMP
- locations
-
-- bpo-33109: argparse subparsers are once again not required by default,
- reverting the change in behavior introduced by bpo-26510 in 3.7.0a2.
-
-- bpo-33536: dataclasses.make_dataclass now checks for invalid field names
- and duplicate fields. Also, added a check for invalid field
- specifications.
-
-- bpo-33542: Prevent ``uuid.get_node`` from using a DUID instead of a MAC on
- Windows. Patch by Zvi Effron
-
-- bpo-26819: Fix race condition with `ReadTransport.resume_reading` in
- Windows proactor event loop.
-
-- Fix failure in `typing.get_type_hints()` when ClassVar was provided as a
- string forward reference.
-
-- bpo-33505: Optimize asyncio.ensure_future() by reordering if checks: 1.17x
- faster.
-
-- bpo-33497: Add errors param to cgi.parse_multipart and make an encoding in
- FieldStorage use the given errors (needed for Twisted). Patch by Amber
- Brown.
-
-- bpo-33495: Change dataclasses.Fields repr to use the repr of each of its
- members, instead of str. This makes it more clear what each field
- actually represents. This is especially true for the 'type' member.
-
-- bpo-33453: Fix dataclasses to work if using literal string type
- annotations or if using PEP 563 "Postponed Evaluation of Annotations".
- Only specific string prefixes are detected for both ClassVar ("ClassVar"
- and "typing.ClassVar") and InitVar ("InitVar" and "dataclasses.InitVar").
-
-- bpo-28556: Minor fixes in typing module: add annotations to
- ``NamedTuple.__new__``, pass ``*args`` and ``**kwds`` in
- ``Generic.__new__``. Original PRs by Paulius Šarka and Chad Dombrova.
-
-- bpo-20087: Updated alias mapping with glibc 2.27 supported locales.
-
-- bpo-33422: Fix trailing quotation marks getting deleted when looking up
- byte/string literals on pydoc. Patch by Andrés Delfino.
-
-- bpo-28167: The function ``platform.linux_distribution`` and
- ``platform.dist`` now trigger a ``DeprecationWarning`` and have been
- marked for removal in Python 3.8
-
-- bpo-33197: Update error message when constructing invalid
- inspect.Parameters Patch by Dong-hee Na.
-
-- bpo-33263: Fix FD leak in `_SelectorSocketTransport` Patch by Vlad
- Starostin.
-
-- bpo-32861: The urllib.robotparser's ``__str__`` representation now
- includes wildcard entries and the "Crawl-delay" and "Request-rate" fields.
- Patch by Michael Lazar.
-
-- bpo-32257: The ssl module now contains OP_NO_RENEGOTIATION constant,
- available with OpenSSL 1.1.0h or 1.1.1.
-
-- bpo-16865: Support arrays >=2GiB in :mod:`ctypes`. Patch by Segev Finer.
-
-Documentation
--------------
-
-- bpo-23859: Document that `asyncio.wait()` does not cancel its futures on
- timeout.
-
-- bpo-32436: Document :pep:`567` changes to asyncio.
-
-- bpo-33604: Update HMAC md5 default to a DeprecationWarning, bump removal
- to 3.8.
-
-- bpo-33503: Fix broken pypi link
-
-- bpo-33421: Add missing documentation for ``typing.AsyncContextManager``.
-
-Tests
------
-
-- bpo-33655: Ignore test_posix_fallocate failures on BSD platforms that
- might be due to running on ZFS.
-
-- bpo-32604: Remove the _xxsubinterpreters module (meant for testing) and
- associated helpers. This module was originally added recently in 3.7b1.
-
-Build
------
-
-- bpo-33614: Ensures module definition files for the stable ABI on Windows
- are correctly regenerated.
-
-- bpo-33522: Enable CI builds on Visual Studio Team Services at
- https://python.visualstudio.com/cpython
-
-- bpo-33012: Add ``-Wno-cast-function-type`` for gcc 8 for silencing
- warnings about function casts like casting to PyCFunction in method
- definition lists.
-
-macOS
------
-
-- bpo-13631: The .editrc file in user's home directory is now processed
- correctly during the readline initialization through editline emulation on
- macOS.
-
-IDLE
-----
-
-- bpo-33628: IDLE: Cleanup codecontext.py and its test.
-
-- bpo-33564: IDLE's code context now recognizes async as a block opener.
-
-- bpo-32831: Add docstrings and tests for codecontext.
-
-
-What's New in Python 3.7.0 beta 4?
-==================================
-
-*Release date: 2018-05-02*
-
-Core and Builtins
------------------
-
-- bpo-33363: Raise a SyntaxError for ``async with`` and ``async for``
- statements outside of async functions.
-
-- bpo-33128: Fix a bug that causes PathFinder to appear twice on
- sys.meta_path. Patch by Pablo Galindo Salgado.
-
-- bpo-33312: Fixed clang ubsan (undefined behavior sanitizer) warnings in
- dictobject.c by adjusting how the internal struct _dictkeysobject shared
- keys structure is declared.
-
-- bpo-33231: Fix potential memory leak in ``normalizestring()``.
-
-- bpo-33205: Change dict growth function from
- ``round_up_to_power_2(used*2+hashtable_size/2)`` to
- ``round_up_to_power_2(used*3)``. Previously, dict is shrinked only when
- ``used == 0``. Now dict has more chance to be shrinked.
-
-- bpo-29922: Improved error messages in 'async with' when ``__aenter__()``
- or ``__aexit__()`` return non-awaitable object.
-
-- bpo-33199: Fix ``ma_version_tag`` in dict implementation is uninitialized
- when copying from key-sharing dict.
-
-Library
--------
-
-- bpo-33281: Fix ctypes.util.find_library regression on macOS.
-
-- bpo-33383: Fixed crash in the get() method of the :mod:`dbm.ndbm` database
- object when it is called with a single argument.
-
-- bpo-33329: Fix multiprocessing regression on newer glibcs
-
-- bpo-991266: Fix quoting of the ``Comment`` attribute of
- :class:`http.cookies.SimpleCookie`.
-
-- bpo-33131: Upgrade bundled version of pip to 10.0.1.
-
-- bpo-33308: Fixed a crash in the :mod:`parser` module when converting an ST
- object to a tree of tuples or lists with ``line_info=False`` and
- ``col_info=True``.
-
-- bpo-33266: lib2to3 now recognizes ``rf'...'`` strings.
-
-- bpo-11594: Ensure line-endings are respected when using lib2to3.
-
-- bpo-33254: Have :func:`importlib.resources.contents` and
- :meth:`importlib.abc.ResourceReader.contents` return an :term:`iterable`
- instead of an :term:`iterator`.
-
-- bpo-33256: Fix display of ``<module>`` call in the html produced by
- ``cgitb.html()``. Patch by Stéphane Blondon.
-
-- bpo-33185: Fixed regression when running pydoc with the :option:`-m`
- switch. (The regression was introduced in 3.7.0b3 by the resolution of
- :issue:`33053`) This fix also changed pydoc to add ``os.getcwd()`` to
- :data:`sys.path` when necessary, rather than adding ``"."``.
-
-- bpo-33169: Delete entries of ``None`` in :data:`sys.path_importer_cache`
- when :meth:`importlib.machinery.invalidate_caches` is called.
-
-- bpo-33217: Deprecate looking up non-Enum objects in Enum classes and Enum
- members (will raise :exc:`TypeError` in 3.8+).
-
-- bpo-33203: ``random.Random.choice()`` now raises ``IndexError`` for empty
- sequences consistently even when called from subclasses without a
- ``getrandbits()`` implementation.
-
-- bpo-33224: Update difflib.mdiff() for :pep:`479`. Convert an uncaught
- StopIteration in a generator into a return-statement.
-
-- bpo-33209: End framing at the end of C implementation of
- :func:`pickle.Pickler.dump`.
-
-- bpo-20104: Improved error handling and fixed a reference leak in
- :func:`os.posix_spawn()`.
-
-- bpo-33175: In dataclasses, Field.__set_name__ now looks up the
- __set_name__ special method on the class, not the instance, of the default
- value.
-
-- bpo-33097: Raise RuntimeError when ``executor.submit`` is called during
- interpreter shutdown.
-
-- bpo-31908: Fix output of cover files for ``trace`` module command-line
- tool. Previously emitted cover files only when ``--missing`` option was
- used. Patch by Michael Selik.
-
-Documentation
--------------
-
-- bpo-33378: Add Korean language switcher for https://docs.python.org/3/
-
-- bpo-33276: Clarify that the ``__path__`` attribute on modules cannot be
- just any value.
-
-- bpo-33201: Modernize documentation for writing C extension types.
-
-- bpo-33195: Deprecate ``Py_UNICODE`` usage in ``c-api/arg`` document.
- ``Py_UNICODE`` related APIs are deprecated since Python 3.3, but it is
- missed in the document.
-
-- bpo-8243: Add a note about curses.addch and curses.addstr exception
- behavior when writing outside a window, or pad.
-
-- bpo-32337: Update documentation related with ``dict`` order.
-
-Tests
------
-
-- bpo-33358: Fix ``test_embed.test_pre_initialization_sys_options()`` when
- the interpreter is built with ``--enable-shared``.
-
-Build
------
-
-- bpo-33394: Enable the verbose build for extension modules, when GNU make
- is passed macros on the command line.
-
-- bpo-33393: Update config.guess and config.sub files.
-
-- bpo-33377: Add new triplets for mips r6 and riscv variants (used in
- extension suffixes).
-
-- bpo-32232: By default, modules configured in `Modules/Setup` are no longer
- built with `-DPy_BUILD_CORE`. Instead, modules that specifically need that
- preprocessor definition include it in their individual entries.
-
-- bpo-33182: The embedding tests can once again be built with clang 6.0
-
-Windows
--------
-
-- bpo-33184: Update Windows installer to use OpenSSL 1.1.0h.
-
-macOS
------
-
-- bpo-33184: Update macOS installer build to use OpenSSL 1.1.0h.
-
-IDLE
-----
-
-- bpo-21474: Update word/identifier definition from ascii to unicode. In
- text and entry boxes, this affects selection by double-click, movement
- left/right by control-left/right, and deletion left/right by
- control-BACKSPACE/DEL.
-
-- bpo-33204: IDLE: consistently color invalid string prefixes. A 'u' string
- prefix cannot be paired with either 'r' or 'f'. Consistently color as much
- of the prefix, starting at the right, as is valid. Revise and extend
- colorizer test.
-
-Tools/Demos
------------
-
-- bpo-33189: :program:`pygettext.py` now recognizes only literal strings as
- docstrings and translatable strings, and rejects bytes literals and
- f-string expressions.
-
-- bpo-31920: Fixed handling directories as arguments in the ``pygettext``
- script. Based on patch by Oleg Krasnikov.
-
-- bpo-29673: Fix pystackv and pystack gdbinit macros.
-
-- bpo-31583: Fix 2to3 for using with --add-suffix option but without
- --output-dir option for relative path to files in current directory.
-
-
-What's New in Python 3.7.0 beta 3?
-==================================
-
-*Release date: 2018-03-29*
-
-Security
---------
-
-- bpo-33136: Harden ssl module against LibreSSL CVE-2018-8970.
- X509_VERIFY_PARAM_set1_host() is called with an explicit namelen. A new
- test ensures that NULL bytes are not allowed.
-
-- bpo-33001: Minimal fix to prevent buffer overrun in os.symlink on Windows
-
-- bpo-32981: Regexes in difflib and poplib were vulnerable to catastrophic
- backtracking. These regexes formed potential DOS vectors (REDOS). They
- have been refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch
- by Jamie Davis.
-
-Core and Builtins
------------------
-
-- bpo-33053: When using the -m switch, sys.path[0] is now explicitly
- expanded as the *starting* working directory, rather than being left as
- the empty path (which allows imports from the current working directory at
- the time of the import)
-
-- bpo-33018: Improve consistency of errors raised by ``issubclass()`` when
- called with a non-class and an abstract base class as the first and second
- arguments, respectively. Patch by Josh Bronson.
-
-- bpo-33041: Fixed jumping when the function contains an ``async for`` loop.
-
-- bpo-33026: Fixed jumping out of "with" block by setting f_lineno.
-
-- bpo-33005: Fix a crash on fork when using a custom memory allocator (ex:
- using PYTHONMALLOC env var). _PyGILState_Reinit() and
- _PyInterpreterState_Enable() now use the default RAW memory allocator to
- allocate a new interpreters mutex on fork.
-
-- bpo-17288: Prevent jumps from 'return' and 'exception' trace events.
-
-- bpo-32836: Don't use temporary variables in cases of list/dict/set
- comprehensions
-
-Library
--------
-
-- bpo-33141: Have Field objects pass through __set_name__ to their default
- values, if they have their own __set_name__.
-
-- bpo-33096: Allow ttk.Treeview.insert to insert iid that has a false
- boolean value. Note iid=0 and iid=False would be same. Patch by Garvit
- Khatri.
-
-- bpo-32873: Treat type variables and special typing forms as immutable by
- copy and pickle. This fixes several minor issues and inconsistencies, and
- improves backwards compatibility with Python 3.6.
-
-- bpo-33134: When computing dataclass's __hash__, use the lookup table to
- contain the function which returns the __hash__ value. This is an
- improvement over looking up a string, and then testing that string to see
- what to do.
-
-- bpo-33127: The ssl module now compiles with LibreSSL 2.7.1.
-
-- bpo-32505: Raise TypeError if a member variable of a dataclass is of type
- Field, but doesn't have a type annotation.
-
-- bpo-33078: Fix the failure on OSX caused by the tests relying on
- sem_getvalue
-
-- bpo-33116: Add 'Field' to dataclasses.__all__.
-
-- bpo-32896: Fix an error where subclassing a dataclass with a field that
- uses a default_factory would generate an incorrect class.
-
-- bpo-33100: Dataclasses: If a field has a default value that's a
- MemberDescriptorType, then it's from that field being in __slots__, not an
- actual default value.
-
-- bpo-32953: If a non-dataclass inherits from a frozen dataclass, allow
- attributes to be added to the derived class. Only attributes from the
- frozen dataclass cannot be assigned to. Require all dataclasses in a
- hierarchy to be either all frozen or all non-frozen.
-
-- bpo-33061: Add missing ``NoReturn`` to ``__all__`` in typing.py
-
-- bpo-33078: Fix the size handling in multiprocessing.Queue when a pickling
- error occurs.
-
-- bpo-33064: lib2to3 now properly supports trailing commas after ``*args``
- and ``**kwargs`` in function signatures.
-
-- bpo-33056: FIX properly close leaking fds in
- concurrent.futures.ProcessPoolExecutor.
-
-- bpo-33021: Release the GIL during fstat() calls, avoiding hang of all
- threads when calling mmap.mmap(), os.urandom(), and random.seed(). Patch
- by Nir Soffer.
-
-- bpo-31804: Avoid failing in multiprocessing.Process if the standard
- streams are closed or None at exit.
-
-- bpo-33037: Skip sending/receiving data after SSL transport closing.
-
-- bpo-27683: Fix a regression in :mod:`ipaddress` that result of
- :meth:`hosts` is empty when the network is constructed by a tuple
- containing an integer mask and only 1 bit left for addresses.
-
-- bpo-32999: Fix C implementation of ``ABC.__subclasscheck__(cls,
- subclass)`` crashed when ``subclass`` is not a type object.
-
-- bpo-33009: Fix inspect.signature() for single-parameter partialmethods.
-
-- bpo-32969: Expose several missing constants in zlib and fix corresponding
- documentation.
-
-- bpo-32056: Improved exceptions raised for invalid number of channels and
- sample width when read an audio file in modules :mod:`aifc`, :mod:`wave`
- and :mod:`sunau`.
-
-- bpo-32844: Fix wrong redirection of a low descriptor (0 or 1) to stderr in
- subprocess if another low descriptor is closed.
-
-- bpo-32857: In :mod:`tkinter`, ``after_cancel(None)`` now raises a
- :exc:`ValueError` instead of canceling the first scheduled function.
- Patch by Cheryl Sabella.
-
-- bpo-31639: http.server now exposes a ThreadedHTTPServer class and uses it
- when the module is run with ``-m`` to cope with web browsers pre-opening
- sockets.
-
-- bpo-27645: :class:`sqlite3.Connection` now exposes a
- :class:`~sqlite3.Connection.backup` method, if the underlying SQLite
- library is at version 3.6.11 or higher. Patch by Lele Gaifax.
-
-Documentation
--------------
-
-- bpo-33126: Document PyBuffer_ToContiguous().
-
-- bpo-27212: Modify documentation for the :func:`islice` recipe to consume
- initial values up to the start index.
-
-- bpo-28247: Update :mod:`zipapp` documentation to describe how to make
- standalone applications.
-
-- bpo-18802: Documentation changes for ipaddress. Patch by Jon Foster and
- Berker Peksag.
-
-- bpo-27428: Update documentation to clarify that ``WindowsRegistryFinder``
- implements ``MetaPathFinder``. (Patch by Himanshu Lakhara)
-
-Tests
------
-
-- bpo-32872: Avoid regrtest compatibility issue with namespace packages.
-
-- bpo-32517: Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport
- of ``KqueueSelector`` loop was not being closed.
-
-- bpo-19417: Add test_bdb.py.
-
-Build
------
-
-- bpo-33163: Upgrade pip to 9.0.3 and setuptools to v39.0.1.
-
-Windows
--------
-
-- bpo-33016: Fix potential use of uninitialized memory in
- nt._getfinalpathname
-
-- bpo-32903: Fix a memory leak in os.chdir() on Windows if the current
- directory is set to a UNC path.
-
-macOS
------
-
-- bpo-32726: Build and link with private copy of Tcl/Tk 8.6 for the macOS
- 10.6+ installer. The 10.9+ installer variant already does this. This
- means that the Python 3.7 provided by the python.org macOS installers no
- longer need or use any external versions of Tcl/Tk, either system-provided
- or user-installed, such as ActiveTcl.
-
-IDLE
-----
-
-- bpo-32984: Set ``__file__`` while running a startup file. Like Python,
- IDLE optionally runs one startup file in the Shell window before
- presenting the first interactive input prompt. For IDLE, ``-s`` runs a
- file named in environmental variable :envvar:`IDLESTARTUP` or
- :envvar:`PYTHONSTARTUP`; ``-r file`` runs ``file``. Python sets
- ``__file__`` to the startup file name before running the file and unsets
- it before the first prompt. IDLE now does the same when run normally,
- without the ``-n`` option.
-
-- bpo-32940: Simplify and rename StringTranslatePseudoMapping in pyparse.
-
-Tools/Demos
------------
-
-- bpo-32885: Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disable
- automatic backup creation (files with ``~`` suffix).
-
-C API
------
-
-- bpo-33042: Embedding applications may once again call
- PySys_ResetWarnOptions, PySys_AddWarnOption, and PySys_AddXOption prior to
- calling Py_Initialize.
-
-- bpo-32374: Document that m_traverse for multi-phase initialized modules
- can be called with m_state=NULL, and add a sanity check
-
-
-What's New in Python 3.7.0 beta 2?
-==================================
-
-*Release date: 2018-02-27*
-
-Security
---------
-
-- bpo-28414: The ssl module now allows users to perform their own IDN
- en/decoding when using SNI.
-
-Core and Builtins
------------------
-
-- bpo-32889: Update Valgrind suppression list to account for the rename of
- ``Py_ADDRESS_IN_RANG`` to ``address_in_range``.
-
-- bpo-31356: Remove the new API added in bpo-31356 (gc.ensure_disabled()
- context manager).
-
-- bpo-32305: For namespace packages, ensure that both ``__file__`` and
- ``__spec__.origin`` are set to None.
-
-- bpo-32303: Make sure ``__spec__.loader`` matches ``__loader__`` for
- namespace packages.
-
-- bpo-32711: Fix the warning messages for Python/ast_unparse.c. Patch by
- Stéphane Wirtel
-
-- bpo-32583: Fix possible crashing in builtin Unicode decoders caused by
- write out-of-bound errors when using customized decode error handlers.
-
-Library
--------
-
-- bpo-32960: For dataclasses, disallow inheriting frozen from non-frozen
- classes, and also disallow inheriting non-frozen from frozen classes. This
- restriction will be relaxed at a future date.
-
-- bpo-32713: Fixed tarfile.itn handling of out-of-bounds float values. Patch
- by Joffrey Fuhrer.
-
-- bpo-32951: Direct instantiation of SSLSocket and SSLObject objects is now
- prohibited. The constructors were never documented, tested, or designed as
- public constructors. Users were suppose to use ssl.wrap_socket() or
- SSLContext.
-
-- bpo-32929: Remove the tri-state parameter "hash", and add the boolean
- "unsafe_hash". If unsafe_hash is True, add a __hash__ function, but if a
- __hash__ exists, raise TypeError. If unsafe_hash is False, add a __hash__
- based on the values of eq= and frozen=. The unsafe_hash=False behavior is
- the same as the old hash=None behavior. unsafe_hash=False is the default,
- just as hash=None used to be.
-
-- bpo-32947: Add OP_ENABLE_MIDDLEBOX_COMPAT and test workaround for TLSv1.3
- for future compatibility with OpenSSL 1.1.1.
-
-- bpo-30622: The ssl module now detects missing NPN support in LibreSSL.
-
-- bpo-32922: dbm.open() now encodes filename with the filesystem encoding
- rather than default encoding.
-
-- bpo-32859: In ``os.dup2``, don't check every call whether the ``dup3``
- syscall exists or not.
-
-- bpo-32556: nt._getfinalpathname, nt._getvolumepathname and
- nt._getdiskusage now correctly convert from bytes.
-
-- bpo-25988: Emit a :exc:`DeprecationWarning` when using or importing an ABC
- directly from :mod:`collections` rather than from :mod:`collections.abc`.
-
-- bpo-21060: Rewrite confusing message from setup.py upload from "No dist
- file created in earlier command" to the more helpful "Must create and
- upload files in one command".
-
-- bpo-32852: Make sure sys.argv remains as a list when running trace.
-
-- bpo-31333: ``_abc`` module is added. It is a speedup module with C
- implementations for various functions and methods in ``abc``. Creating an
- ABC subclass and calling ``isinstance`` or ``issubclass`` with an ABC
- subclass are up to 1.5x faster. In addition, this makes Python start-up up
- to 10% faster. Note that the new implementation hides internal registry
- and caches, previously accessible via private attributes
- ``_abc_registry``, ``_abc_cache``, and ``_abc_negative_cache``. There are
- three debugging helper methods that can be used instead
- ``_dump_registry``, ``_abc_registry_clear``, and ``_abc_caches_clear``.
-
-- bpo-32841: Fixed `asyncio.Condition` issue which silently ignored
- cancellation after notifying and cancelling a conditional lock. Patch by
- Bar Harel.
-
-- bpo-32819: ssl.match_hostname() has been simplified and no longer depends
- on re and ipaddress module for wildcard and IP addresses. Error reporting
- for invalid wildcards has been improved.
-
-- bpo-32394: socket: Remove
- TCP_FASTOPEN,TCP_KEEPCNT,TCP_KEEPIDLE,TCP_KEEPINTVL flags on older version
- Windows during run-time.
-
-- bpo-31787: Fixed refleaks of ``__init__()`` methods in various modules.
- (Contributed by Oren Milman)
-
-- bpo-30157: Fixed guessing quote and delimiter in csv.Sniffer.sniff() when
- only the last field is quoted. Patch by Jake Davis.
-
-- bpo-32792: collections.ChainMap() preserves the order of the underlying
- mappings.
-
-- bpo-32775: :func:`fnmatch.translate()` no longer produces patterns which
- contain set operations. Sets starting with '[' or containing '--', '&&',
- '~~' or '||' will be interpreted differently in regular expressions in
- future versions. Currently they emit warnings. fnmatch.translate() now
- avoids producing patterns containing such sets by accident.
-
-- bpo-32622: Implement native fast sendfile for Windows proactor event loop.
-
-- bpo-32777: Fix a rare but potential pre-exec child process deadlock in
- subprocess on POSIX systems when marking file descriptors inheritable on
- exec in the child process. This bug appears to have been introduced in
- 3.4.
-
-- bpo-32647: The ctypes module used to depend on indirect linking for
- dlopen. The shared extension is now explicitly linked against libdl on
- platforms with dl.
-
-- bpo-32741: Implement ``asyncio.TimerHandle.when()`` method.
-
-- bpo-32691: Use mod_spec.parent when running modules with pdb
-
-- bpo-32734: Fixed ``asyncio.Lock()`` safety issue which allowed acquiring
- and locking the same lock multiple times, without it being free. Patch by
- Bar Harel.
-
-- bpo-32727: Do not include name field in SMTP envelope from address. Patch
- by Stéphane Wirtel
-
-- bpo-31453: Add TLSVersion constants and SSLContext.maximum_version /
- minimum_version attributes. The new API wraps OpenSSL 1.1
- https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_set_min_proto_version.html
- feature.
-
-- bpo-24334: Internal implementation details of ssl module were cleaned up.
- The SSLSocket has one less layer of indirection. Owner and session
- information are now handled by the SSLSocket and SSLObject constructor.
- Channel binding implementation has been simplified.
-
-- bpo-31848: Fix the error handling in Aifc_read.initfp() when the SSND
- chunk is not found. Patch by Zackery Spytz.
-
-- bpo-32585: Add Ttk spinbox widget to :mod:`tkinter.ttk`. Patch by Alan D
- Moore.
-
-- bpo-32221: Various functions returning tuple containing IPv6 addresses now
- omit ``%scope`` part since the same information is already encoded in
- *scopeid* tuple item. Especially this speeds up :func:`socket.recvfrom`
- when it receives multicast packet since useless resolving of network
- interface name is omitted.
-
-- bpo-30693: The TarFile class now recurses directories in a reproducible
- way.
-
-- bpo-30693: The ZipFile class now recurses directories in a reproducible
- way.
-
-Documentation
--------------
-
-- bpo-28124: The ssl module function ssl.wrap_socket() has been
- de-emphasized and deprecated in favor of the more secure and efficient
- SSLContext.wrap_socket() method.
-
-- bpo-17232: Clarify docs for -O and -OO. Patch by Terry Reedy.
-
-- bpo-32436: Add documentation for the contextvars module (PEP 567).
-
-- bpo-32800: Update link to w3c doc for xml default namespaces.
-
-- bpo-11015: Update :mod:`test.support` documentation.
-
-- bpo-8722: Document :meth:`__getattr__` behavior when property :meth:`get`
- method raises :exc:`AttributeError`.
-
-- bpo-32614: Modify RE examples in documentation to use raw strings to
- prevent :exc:`DeprecationWarning` and add text to REGEX HOWTO to highlight
- the deprecation.
-
-- bpo-31972: Improve docstrings for `pathlib.PurePath` subclasses.
-
-Tests
------
-
-- bpo-31809: Add tests to verify connection with secp ECDH curves.
-
-Build
------
-
-- bpo-32898: Fix the python debug build when using COUNT_ALLOCS.
-
-Windows
--------
-
-- bpo-32901: Update Tcl and Tk versions to 8.6.8
-
-- bpo-31966: Fixed WindowsConsoleIO.write() for writing empty data.
-
-- bpo-32409: Ensures activate.bat can handle Unicode contents.
-
-- bpo-32457: Improves handling of denormalized executable path when
- launching Python.
-
-- bpo-32370: Use the correct encoding for ipconfig output in the uuid
- module. Patch by Segev Finer.
-
-- bpo-29248: Fix :func:`os.readlink` on Windows, which was mistakenly
- treating the ``PrintNameOffset`` field of the reparse data buffer as a
- number of characters instead of bytes. Patch by Craig Holmquist and SSE4.
-
-macOS
------
-
-- bpo-32901: Update macOS 10.9+ installer to Tcl/Tk 8.6.8.
-
-IDLE
-----
-
-- bpo-32916: Change ``str`` to ``code`` in pyparse.
-
-- bpo-32905: Remove unused code in pyparse module.
-
-- bpo-32874: Add tests for pyparse.
-
-- bpo-32837: Using the system and place-dependent default encoding for
- open() is a bad idea for IDLE's system and location-independent files.
-
-- bpo-32826: Add "encoding=utf-8" to open() in IDLE's test_help_about. GUI
- test test_file_buttons() only looks at initial ascii-only lines, but
- failed on systems where open() defaults to 'ascii' because readline()
- internally reads and decodes far enough ahead to encounter a non-ascii
- character in CREDITS.txt.
-
-- bpo-32765: Update configdialog General tab docstring to add new widgets to
- the widget list.
-
-Tools/Demos
------------
-
-- bpo-32222: Fix pygettext not extracting docstrings for functions with type
- annotated arguments. Patch by Toby Harradine.
-
-
-What's New in Python 3.7.0 beta 1?
-==================================
-
-*Release date: 2018-01-30*
-
-Core and Builtins
------------------
-
-- bpo-32703: Fix coroutine's ResourceWarning when there's an active error
- set when it's being finalized.
-
-- bpo-32650: Pdb and other debuggers dependent on bdb.py will correctly step
- over (next command) native coroutines. Patch by Pablo Galindo.
-
-- bpo-28685: Optimize list.sort() and sorted() by using type specialized
- comparisons when possible.
-
-- bpo-32685: Improve suggestion when the Python 2 form of print statement is
- either present on the same line as the header of a compound statement or
- else terminated by a semi-colon instead of a newline. Patch by Nitish
- Chandra.
-
-- bpo-32697: Python now explicitly preserves the definition order of
- keyword-only parameters. It's always preserved their order, but this
- behavior was never guaranteed before; this behavior is now guaranteed and
- tested.
-
-- bpo-32690: The locals() dictionary now displays in the lexical order that
- variables were defined. Previously, the order was reversed.
-
-- bpo-32677: Add ``.isascii()`` method to ``str``, ``bytes`` and
- ``bytearray``. It can be used to test that string contains only ASCII
- characters.
-
-- bpo-32670: Enforce :pep:`479` for all code. This means that manually
- raising a StopIteration exception from a generator is prohibited for all
- code, regardless of whether 'from __future__ import generator_stop' was
- used or not.
-
-- bpo-32591: Added built-in support for tracking the origin of coroutine
- objects; see sys.set_coroutine_origin_tracking_depth and
- CoroutineType.cr_origin. This replaces the asyncio debug mode's use of
- coroutine wrapping for native coroutine objects.
-
-- bpo-31368: Expose preadv and pwritev system calls in the os module. Patch
- by Pablo Galindo
-
-- bpo-32544: ``hasattr(obj, name)`` and ``getattr(obj, name, default)`` are
- about 4 times faster than before when ``name`` is not found and ``obj``
- doesn't override ``__getattr__`` or ``__getattribute__``.
-
-- bpo-26163: Improved frozenset() hash to create more distinct hash values
- when faced with datasets containing many similar values.
-
-- bpo-32550: Remove the STORE_ANNOTATION bytecode.
-
-- bpo-20104: Expose posix_spawn as a low level API in the os module.
- (removed before 3.7.0rc1)
-
-- bpo-24340: Fixed estimation of the code stack size.
-
-- bpo-32436: Implement :pep:`567` Context Variables.
-
-- bpo-18533: ``repr()`` on a dict containing its own ``values()`` or
- ``items()`` no longer raises ``RecursionError``; OrderedDict similarly.
- Instead, use ``...``, as for other recursive structures. Patch by Ben
- North.
-
-- bpo-20891: Py_Initialize() now creates the GIL. The GIL is no longer
- created "on demand" to fix a race condition when PyGILState_Ensure() is
- called in a non-Python thread.
-
-- bpo-32028: Leading whitespace is now correctly ignored when generating
- suggestions for converting Py2 print statements to Py3 builtin print
- function calls. Patch by Sanyam Khurana.
-
-- bpo-31179: Make dict.copy() up to 5.5 times faster.
-
-- bpo-31113: Get rid of recursion in the compiler for normal control flow.
-
-Library
--------
-
-- bpo-25988: Deprecate exposing the contents of collections.abc in the
- regular collections module.
-
-- bpo-31429: The default cipher suite selection of the ssl module now uses a
- blacklist approach rather than a hard-coded whitelist. Python no longer
- re-enables ciphers that have been blocked by OpenSSL security update.
- Default cipher suite selection can be configured on compile time.
-
-- bpo-30306: contextlib.contextmanager now releases the arguments passed to
- the underlying generator as soon as the context manager is entered.
- Previously it would keep them alive for as long as the context manager was
- alive, even when not being used as a function decorator. Patch by Martin
- Teichmann.
-
-- bpo-21417: Added support for setting the compression level for
- zipfile.ZipFile.
-
-- bpo-32251: Implement asyncio.BufferedProtocol (provisional API).
-
-- bpo-32513: In dataclasses, allow easier overriding of dunder methods
- without specifying decorator parameters.
-
-- bpo-32660: :mod:`termios` makes available ``FIONREAD``, ``FIONCLEX``,
- ``FIOCLEX``, ``FIOASYNC`` and ``FIONBIO`` also under Solaris/derivatives.
-
-- bpo-27931: Fix email address header parsing error when the username is an
- empty quoted string. Patch by Xiang Zhang.
-
-- bpo-32659: Under Solaris and derivatives, :class:`os.stat_result` provides
- a st_fstype attribute.
-
-- bpo-32662: Implement Server.start_serving(), Server.serve_forever(), and
- Server.is_serving() methods. Add 'start_serving' keyword parameter to
- loop.create_server() and loop.create_unix_server().
-
-- bpo-32391: Implement :meth:`asyncio.StreamWriter.wait_closed` and
- :meth:`asyncio.StreamWriter.is_closing` methods
-
-- bpo-32643: Make Task._step, Task._wakeup and Future._schedule_callbacks
- methods private.
-
-- bpo-32630: Refactor decimal module to use contextvars to store decimal
- context.
-
-- bpo-32622: Add :meth:`asyncio.AbstractEventLoop.sendfile` method.
-
-- bpo-32304: distutils' upload command no longer corrupts tar files ending
- with a CR byte, and no longer tries to convert CR to CRLF in any of the
- upload text fields.
-
-- bpo-32502: uuid.uuid1 no longer raises an exception if a 64-bit hardware
- address is encountered.
-
-- bpo-32596: ``concurrent.futures`` imports ``ThreadPoolExecutor`` and
- ``ProcessPoolExecutor`` lazily (using :pep:`562`). It makes ``import
- asyncio`` about 15% faster because asyncio uses only
- ``ThreadPoolExecutor`` by default.
-
-- bpo-31801: Add ``_ignore_`` to ``Enum`` so temporary variables can be used
- during class construction without being turned into members.
-
-- bpo-32576: Use queue.SimpleQueue() in places where it can be invoked from
- a weakref callback.
-
-- bpo-32574: Fix memory leak in asyncio.Queue, when the queue has limited
- size and it is full, the cancelation of queue.put() can cause a memory
- leak. Patch by: José Melero.
-
-- bpo-32521: The nis module is now compatible with new libnsl and headers
- location.
-
-- bpo-32467: collections.abc.ValuesView now inherits from
- collections.abc.Collection.
-
-- bpo-32473: Improve ABCMeta._dump_registry() output readability
-
-- bpo-32102: New argument ``capture_output`` for subprocess.run
-
-- bpo-32521: glibc has removed Sun RPC. Use replacement libtirpc headers and
- library in nis module.
-
-- bpo-32493: UUID module fixes build for FreeBSD/OpenBSD
-
-- bpo-32503: Pickling with protocol 4 no longer creates too small frames.
-
-- bpo-29237: Create enum for pstats sorting options
-
-- bpo-32454: Add close(fd) function to the socket module.
-
-- bpo-25942: The subprocess module is now more graceful when handling a
- Ctrl-C KeyboardInterrupt during subprocess.call, subprocess.run, or a
- Popen context manager. It now waits a short amount of time for the child
- (presumed to have also gotten the SIGINT) to exit, before continuing the
- KeyboardInterrupt exception handling. This still includes a SIGKILL in
- the call() and run() APIs, but at least the child had a chance first.
-
-- bpo-32433: The hmac module now has hmac.digest(), which provides an
- optimized HMAC digest.
-
-- bpo-28134: Sockets now auto-detect family, type and protocol from file
- descriptor by default.
-
-- bpo-32404: Fix bug where :meth:`datetime.datetime.fromtimestamp` did not
- call __new__ in :class:`datetime.datetime` subclasses.
-
-- bpo-32403: Improved speed of :class:`datetime.date` and
- :class:`datetime.datetime` alternate constructors.
-
-- bpo-32228: Ensure that ``truncate()`` preserves the file position (as
- reported by ``tell()``) after writes longer than the buffer size.
-
-- bpo-32410: Implement ``loop.sock_sendfile`` for asyncio event loop.
-
-- bpo-22908: Added seek and tell to the ZipExtFile class. This only works if
- the file object used to open the zipfile is seekable.
-
-- bpo-32373: Add socket.getblocking() method.
-
-- bpo-32248: Add :mod:`importlib.resources` and
- :class:`importlib.abc.ResourceReader` as the unified API for reading
- resources contained within packages. Loaders wishing to support resource
- reading must implement the :meth:`get_resource_reader()` method.
- File-based and zipimport-based loaders both implement these APIs.
- :class:`importlib.abc.ResourceLoader` is deprecated in favor of these new
- APIs.
-
-- bpo-32320: collections.namedtuple() now supports default values.
-
-- bpo-29302: Add contextlib.AsyncExitStack. Patch by Alexander Mohr and Ilya
- Kulakov.
-
-- bpo-31961: *Removed in Python 3.7.0b2.* The *args* argument of
- subprocess.Popen can now be a :term:`path-like object`. If *args* is given
- as a sequence, it's first element can now be a :term:`path-like object` as
- well.
-
-- bpo-31900: The :func:`locale.localeconv` function now sets temporarily the
- ``LC_CTYPE`` locale to the ``LC_NUMERIC`` locale to decode
- ``decimal_point`` and ``thousands_sep`` byte strings if they are non-ASCII
- or longer than 1 byte, and the ``LC_NUMERIC`` locale is different than the
- ``LC_CTYPE`` locale. This temporary change affects other threads. Same
- change for the :meth:`str.format` method when formatting a number
- (:class:`int`, :class:`float`, :class:`float` and subclasses) with the
- ``n`` type (ex: ``'{:n}'.format(1234)``).
-
-- bpo-31853: Use super().method instead of socket.method in SSLSocket. They
- were there most likely for legacy reasons.
-
-- bpo-31399: The ssl module now uses OpenSSL's X509_VERIFY_PARAM_set1_host()
- and X509_VERIFY_PARAM_set1_ip() API to verify hostname and IP addresses.
- Subject common name fallback can be disabled with
- SSLContext.hostname_checks_common_name.
-
-- bpo-14976: Add a queue.SimpleQueue class, an unbounded FIFO queue with a
- reentrant C implementation of put().
-
-Documentation
--------------
-
-- bpo-32724: Add references to some commands in the documentation of Pdb.
- Patch by Stéphane Wirtel
-
-- bpo-32649: Complete the C API documentation, profiling and tracing part
- with the newly added per-opcode events.
-
-- bpo-17799: Explain real behaviour of sys.settrace and sys.setprofile and
- their C-API counterparts regarding which type of events are received in
- each function. Patch by Pablo Galindo Salgado.
-
-Tests
------
-
-- bpo-32721: Fix test_hashlib to not fail if the _md5 module is not built.
-
-- bpo-28414: Add test cases for IDNA 2003 and 2008 host names. IDNA 2003
- internationalized host names are working since bpo-31399 has landed. IDNA
- 2008 are still broken.
-
-- bpo-32604: Add a new "_xxsubinterpreters" extension module that exposes
- the existing subinterpreter C-API and a new cross-interpreter data sharing
- mechanism. The module is primarily intended for more thorough testing of
- the existing subinterpreter support. Note that the _xxsubinterpreters
- module has been removed in 3.7.0rc1.
-
-- bpo-32602: Add test certs and test for ECDSA cert and EC/RSA dual mode.
-
-- bpo-32549: On Travis CI, Python now Compiles and uses a local copy of
- OpenSSL 1.1.0g for testing.
-
-Build
------
-
-- bpo-32635: Fix segfault of the crypt module when libxcrypt is provided
- instead of libcrypt at the system.
-
-- bpo-32598: Use autoconf to detect OpenSSL libs, headers and supported
- features. The ax_check_openssl M4 macro uses pkg-config to locate OpenSSL
- and falls back to manual search.
-
-- bpo-32593: Drop support of FreeBSD 9 and older.
-
-- bpo-29708: If the :envvar:`SOURCE_DATE_EPOCH` environment variable is set,
- :mod:`py_compile` will always create hash-based ``.pyc`` files.
-
-Windows
--------
-
-- bpo-32588: Create standalone _distutils_findvs module and add missing
- _queue module to installer.
-
-- bpo-29911: Ensure separate Modify and Uninstall buttons are displayed.
-
-- bpo-32507: Use app-local UCRT install rather than the proper update for
- old versions of Windows.
-
-macOS
------
-
-- bpo-32726: Provide an additional, more modern macOS installer variant that
- supports macOS 10.9+ systems in 64-bit mode only. Upgrade the supplied
- third-party libraries to OpenSSL 1.1.0g and to SQLite 3.22.0. The 10.9+
- installer now links with and supplies its own copy of Tcl/Tk 8.6.
-
-- bpo-28440: No longer add /Library/Python/3.x/site-packages to sys.path for
- macOS framework builds to avoid future conflicts.
-
-C API
------
-
-- bpo-32681: Fix uninitialized variable 'res' in the C implementation of
- os.dup2. Patch by Stéphane Wirtel
-
-- bpo-10381: Add C API access to the ``datetime.timezone`` constructor and
- ``datetime.timzone.UTC`` singleton.
-
-
-What's New in Python 3.7.0 alpha 4?
-===================================
-
-*Release date: 2018-01-08*
-
-Core and Builtins
------------------
-
-- bpo-31975: The default warning filter list now starts with a
- "default::DeprecationWarning:__main__" entry, so deprecation warnings are
- once again shown by default in single-file scripts and at the interactive
- prompt.
-
-- bpo-32226: ``__class_getitem__`` is now an automatic class method.
-
-- bpo-32399: Add AIX uuid library support for RFC4122 using uuid_create() in
- libc.a
-
-- bpo-32390: Fix the compilation failure on AIX after the f_fsid field has
- been added to the object returned by os.statvfs() (issue #32143). Original
- patch by Michael Felt.
-
-- bpo-32379: Make MRO computation faster when a class inherits from a single
- base.
-
-- bpo-32259: The error message of a TypeError raised when unpack
- non-iterable is now more specific.
-
-- bpo-27169: The ``__debug__`` constant is now optimized out at compile
- time. This fixes also bpo-22091.
-
-- bpo-32329: The :option:`-R` option now turns on hash randomization when
- the :envvar:`PYTHONHASHSEED` environment variable is set to ``0``.
- Previously, the option was ignored. Moreover,
- ``sys.flags.hash_randomization`` is now properly set to 0 when hash
- randomization is turned off by ``PYTHONHASHSEED=0``.
-
-- bpo-30416: The optimizer is now protected from spending much time doing
- complex calculations and consuming much memory for creating large
- constants in constant folding. Increased limits for constants that can be
- produced in constant folding.
-
-- bpo-32282: Fix an unnecessary ifdef in the include of VersionHelpers.h in
- socketmodule on Windows.
-
-- bpo-30579: Implement TracebackType.__new__ to allow Python-level creation
- of traceback objects, and make TracebackType.tb_next mutable.
-
-- bpo-32260: Don't byte swap the input keys to the SipHash algorithm on
- big-endian platforms. This should ensure siphash gives consistent results
- across platforms.
-
-- bpo-31506: Improve the error message logic for object.__new__ and
- object.__init__. Patch by Sanyam Khurana.
-
-- bpo-20361: ``-b`` and ``-bb`` now inject ``'default::BytesWarning'`` and
- ``error::BytesWarning`` entries into ``sys.warnoptions``, ensuring that
- they take precedence over any other warning filters configured via the
- ``-W`` option or the ``PYTHONWARNINGS`` environment variable.
-
-- bpo-32230: `-X dev` now injects a ``'default'`` entry into
- sys.warnoptions, ensuring that it behaves identically to actually passing
- ``-Wdefault`` at the command line.
-
-- bpo-29240: Add a new UTF-8 mode: implementation of the :pep:`540`.
-
-- bpo-32226: :pep:`560`: Add support for ``__mro_entries__`` and
- ``__class_getitem__``. Implemented by Ivan Levkivskyi.
-
-- bpo-32225: :pep:`562`: Add support for module ``__getattr__`` and
- ``__dir__``. Implemented by Ivan Levkivskyi.
-
-- bpo-31901: The `atexit` module now has its callback stored per
- interpreter.
-
-- bpo-31650: Implement :pep:`552` (Deterministic pycs). Python now supports
- invalidating bytecode cache files bashed on a source content hash rather
- than source last-modified time.
-
-- bpo-29469: Move constant folding from bytecode layer to AST layer.
- Original patch by Eugene Toder.
-
-Library
--------
-
-- bpo-32506: Now that dict is defined as keeping insertion order, drop
- OrderedDict and just use plain dict.
-
-- bpo-32279: Add params to dataclasses.make_dataclasses(): init, repr, eq,
- order, hash, and frozen. Pass them through to dataclass().
-
-- bpo-32278: Make type information optional on dataclasses.make_dataclass().
- If omitted, the string 'typing.Any' is used.
-
-- bpo-32499: Add dataclasses.is_dataclass(obj), which returns True if obj is
- a dataclass or an instance of one.
-
-- bpo-32468: Improve frame repr() to mention filename, code name and current
- line number.
-
-- bpo-23749: asyncio: Implement loop.start_tls()
-
-- bpo-32441: Return the new file descriptor (i.e., the second argument) from
- ``os.dup2``. Previously, ``None`` was always returned.
-
-- bpo-32422: ``functools.lru_cache`` uses less memory (3 words for each
- cached key) and takes about 1/3 time for cyclic GC.
-
-- bpo-31721: Prevent Python crash from happening when Future._log_traceback
- is set to True manually. Now it can only be set to False, or a ValueError
- is raised.
-
-- bpo-32415: asyncio: Add Task.get_loop() and Future.get_loop()
-
-- bpo-26133: Don't unsubscribe signals in asyncio UNIX event loop on
- interpreter shutdown.
-
-- bpo-32363: Make asyncio.Task.set_exception() and set_result() raise
- NotImplementedError. Task._step() and Future.__await__() raise proper
- exceptions when they are in an invalid state, instead of raising an
- AssertionError.
-
-- bpo-32357: Optimize asyncio.iscoroutine() and loop.create_task() for
- non-native coroutines (e.g. async/await compiled with Cython).
- 'loop.create_task(python_coroutine)' used to be 20% faster than
- 'loop.create_task(cython_coroutine)'. Now, the latter is as fast.
-
-- bpo-32356: asyncio.transport.resume_reading() and pause_reading() are now
- idempotent. New transport.is_reading() method is added.
-
-- bpo-32355: Optimize asyncio.gather(); now up to 15% faster.
-
-- bpo-32351: Use fastpath in asyncio.sleep if delay<0 (2x boost)
-
-- bpo-32348: Optimize asyncio.Future schedule/add/remove callback. The
- optimization shows 3-6% performance improvements of async/await code.
-
-- bpo-32331: Fix socket.settimeout() and socket.setblocking() to keep
- socket.type as is. Fix socket.socket() constructor to reset any bit flags
- applied to socket's type. This change only affects OSes that have
- SOCK_NONBLOCK and/or SOCK_CLOEXEC.
-
-- bpo-32248: Add :class:`importlib.abc.ResourceReader` as an ABC for loaders
- to provide a unified API for reading resources contained within packages.
- Also add :mod:`importlib.resources` as the port of
- ``importlib_resources``.
-
-- bpo-32311: Implement asyncio.create_task(coro) shortcut
-
-- bpo-32327: Convert asyncio functions that were documented as coroutines to
- coroutines. Affected functions: loop.sock_sendall, loop.sock_recv,
- loop.sock_accept, loop.getaddrinfo, loop.getnameinfo.
-
-- bpo-32323: :func:`urllib.parse.urlsplit()` does not convert zone-id
- (scope) to lower case for scoped IPv6 addresses in hostnames now.
-
-- bpo-32302: Fix bdist_wininst of distutils for CRT v142: it binary
- compatible with CRT v140.
-
-- bpo-29711: Fix ``stop_serving`` in asyncio proactor loop kill all
- listening servers
-
-- bpo-32308: :func:`re.sub()` now replaces empty matches adjacent to a
- previous non-empty match.
-
-- bpo-29970: Abort asyncio SSLProtocol connection if handshake not complete
- within 10 seconds.
-
-- bpo-32314: Implement asyncio.run().
-
-- bpo-17852: Revert incorrect fix based on misunderstanding of
- _Py_PyAtExit() semantics.
-
-- bpo-32296: Implement asyncio._get_running_loop() and get_event_loop() in
- C. This makes them 4x faster.
-
-- bpo-32250: Implement ``asyncio.current_task()`` and
- ``asyncio.all_tasks()``. Add helpers intended to be used by alternative
- task implementations: ``asyncio._register_task``, ``asyncio._enter_task``,
- ``asyncio._leave_task`` and ``asyncio._unregister_task``. Deprecate
- ``asyncio.Task.current_task()`` and ``asyncio.Task.all_tasks()``.
-
-- bpo-32255: A single empty field is now always quoted when written into a
- CSV file. This allows to distinguish an empty row from a row consisting of
- a single empty field. Patch by Licht Takeuchi.
-
-- bpo-32277: Raise ``NotImplementedError`` instead of ``SystemError`` on
- platforms where ``chmod(..., follow_symlinks=False)`` is not supported.
- Patch by Anthony Sottile.
-
-- bpo-30050: New argument warn_on_full_buffer to signal.set_wakeup_fd lets
- you control whether Python prints a warning on stderr when the wakeup fd
- buffer overflows.
-
-- bpo-29137: The ``fpectl`` library has been removed. It was never enabled
- by default, never worked correctly on x86-64, and it changed the Python
- ABI in ways that caused unexpected breakage of C extensions.
-
-- bpo-32273: Move asyncio.test_utils to test.test_asyncio.
-
-- bpo-32272: Remove asyncio.async() function.
-
-- bpo-32269: Add asyncio.get_running_loop() function.
-
-- bpo-32265: All class and static methods of builtin types now are correctly
- classified by inspect.classify_class_attrs() and grouped in pydoc ouput.
- Added types.ClassMethodDescriptorType for unbound class methods of builtin
- types.
-
-- bpo-32253: Deprecate ``yield from lock``, ``await lock``, ``with (yield
- from lock)`` and ``with await lock`` for asyncio synchronization
- primitives.
-
-- bpo-22589: Changed MIME type of .bmp from 'image/x-ms-bmp' to 'image/bmp'
-
-- bpo-32193: Convert asyncio to use *async/await* syntax. Old styled ``yield
- from`` is still supported too.
-
-- bpo-32206: Add support to run modules with pdb
-
-- bpo-32227: ``functools.singledispatch`` now supports registering
- implementations using type annotations.
-
-- bpo-15873: Added new alternate constructors
- :meth:`datetime.datetime.fromisoformat`,
- :meth:`datetime.time.fromisoformat` and
- :meth:`datetime.date.fromisoformat` as the inverse operation of each
- classes's respective ``isoformat`` methods.
-
-- bpo-32199: The getnode() ip getter now uses 'ip link' instead of 'ip link
- list'.
-
-- bpo-32143: os.statvfs() includes the f_fsid field from statvfs(2)
-
-- bpo-26439: Fix ctypes.util.find_library() for AIX by implementing
- ctypes._aix.find_library() Patch by: Michael Felt
-
-- bpo-31993: The pickler now uses less memory when serializing large bytes
- and str objects into a file. Pickles created with protocol 4 will require
- less memory for unpickling large bytes and str objects.
-
-- bpo-27456: Ensure TCP_NODELAY is set on Linux. Tests by Victor Stinner.
-
-- bpo-31778: ast.literal_eval() is now more strict. Addition and subtraction
- of arbitrary numbers no longer allowed.
-
-- bpo-31802: Importing native path module (``posixpath``, ``ntpath``) now
- works even if the ``os`` module still is not imported.
-
-- bpo-30241: Add contextlib.AbstractAsyncContextManager. Patch by Jelle
- Zijlstra.
-
-- bpo-31699: Fix deadlocks in
- :class:`concurrent.futures.ProcessPoolExecutor` when task arguments or
- results cause pickling or unpickling errors. This should make sure that
- calls to the :class:`ProcessPoolExecutor` API always eventually return.
-
-- bpo-15216: ``TextIOWrapper.reconfigure()`` supports changing *encoding*,
- *errors*, and *newline*.
-
-Documentation
--------------
-
-- bpo-32418: Add get_loop() method to Server and AbstractServer classes.
-
-Tests
------
-
-- bpo-32252: Fix faulthandler_suppress_crash_report() used to prevent core
- dump files when testing crashes. getrlimit() returns zero on success.
-
-- bpo-32002: Adjust C locale coercion testing for the empty locale and POSIX
- locale cases to more readily adjust to platform dependent behaviour.
-
-Windows
--------
-
-- bpo-19764: Implement support for `subprocess.Popen(close_fds=True)` on
- Windows. Patch by Segev Finer.
-
-Tools/Demos
------------
-
-- bpo-24960: 2to3 and lib2to3 can now read pickled grammar files using
- pkgutil.get_data() rather than probing the filesystem. This lets 2to3 and
- lib2to3 work when run from a zipfile.
-
-C API
------
-
-- bpo-32030: Py_Initialize() doesn't reset the memory allocators to default
- if the ``PYTHONMALLOC`` environment variable is not set.
-
-- bpo-29084: Undocumented C API for OrderedDict has been excluded from the
- limited C API. It was added by mistake and actually never worked in the
- limited C API.
-
-- bpo-32264: Moved the pygetopt.h header into internal/, since it has no
- public APIs.
-
-- bpo-32241: :c:func:`Py_SetProgramName` and :c:func:`Py_SetPythonHome` now
- take the ``const wchar *`` arguments instead of ``wchar *``.
-
-
-What's New in Python 3.7.0 alpha 3?
-===================================
-
-*Release date: 2017-12-05*
-
-Core and Builtins
------------------
-
-- bpo-32176: co_flags.CO_NOFREE is now always set correctly by the code
- object constructor based on freevars and cellvars, rather than needing to
- be set correctly by the caller. This ensures it will be cleared
- automatically when additional cell references are injected into a modified
- code object and function.
-
-- bpo-10544: Yield expressions are now deprecated in comprehensions and
- generator expressions. They are still permitted in the definition of the
- outermost iterable, as that is evaluated directly in the enclosing scope.
-
-- bpo-32137: The repr of deeply nested dict now raises a RecursionError
- instead of crashing due to a stack overflow.
-
-- bpo-32096: Revert memory allocator changes in the C API: move structures
- back from _PyRuntime to Objects/obmalloc.c. The memory allocators are once
- again initialized statically, and so PyMem_RawMalloc() and
- Py_DecodeLocale() can be called before _PyRuntime_Initialize().
-
-- bpo-32043: Add a new "developer mode": new "-X dev" command line option to
- enable debug checks at runtime.
-
-- bpo-32023: SyntaxError is now correctly raised when a generator expression
- without parenthesis is used instead of an inheritance list in a class
- definition. The duplication of the parentheses can be omitted only on
- calls.
-
-- bpo-32012: SyntaxError is now correctly raised when a generator expression
- without parenthesis is passed as an argument, but followed by a trailing
- comma. A generator expression always needs to be directly inside a set of
- parentheses and cannot have a comma on either side.
-
-- bpo-28180: A new internal ``_Py_SetLocaleFromEnv(category)`` helper
- function has been added in order to improve the consistency of behaviour
- across different ``libc`` implementations (e.g. Android doesn't support
- setting the locale from the environment by default).
-
-- bpo-31949: Fixed several issues in printing tracebacks
- (PyTraceBack_Print()). Setting sys.tracebacklimit to 0 or less now
- suppresses printing tracebacks. Setting sys.tracebacklimit to None now
- causes using the default limit. Setting sys.tracebacklimit to an integer
- larger than LONG_MAX now means using the limit LONG_MAX rather than the
- default limit. Fixed integer overflows in the case of more than ``2**31``
- traceback items on Windows. Fixed output errors handling.
-
-- bpo-30696: Fix the interactive interpreter looping endlessly when no
- memory.
-
-- bpo-20047: Bytearray methods partition() and rpartition() now accept only
- bytes-like objects as separator, as documented. In particular they now
- raise TypeError rather of returning a bogus result when an integer is
- passed as a separator.
-
-- bpo-21720: BytesWarning no longer emitted when the *fromlist* argument of
- ``__import__()`` or the ``__all__`` attribute of the module contain bytes
- instances.
-
-- bpo-31845: Environment variables are once more read correctly at
- interpreter startup.
-
-- bpo-28936: Ensure that lexically first syntax error involving a parameter
- and ``global`` or ``nonlocal`` is detected first at a given scope. Patch
- by Ivan Levkivskyi.
-
-- bpo-31825: Fixed OverflowError in the 'unicode-escape' codec and in
- codecs.escape_decode() when decode an escaped non-ascii byte.
-
-- bpo-31618: The per-frame tracing logic added in 3.7a1 has been altered so
- that ``frame->f_lineno`` is updated before either ``"line"`` or
- ``"opcode"`` events are emitted. Previously, opcode events were emitted
- first, and therefore would occasionally see stale line numbers on the
- frame. The behavior of this feature has changed slightly as a result: when
- both ``f_trace_lines`` and ``f_trace_opcodes`` are enabled, line events
- now occur first.
-
-- bpo-28603: Print the full context/cause chain of exceptions on interpreter
- exit, even if an exception in the chain is unhashable or compares equal to
- later ones. Patch by Zane Bitter.
-
-- bpo-31786: Fix timeout rounding in the select module to round correctly
- negative timeouts between -1.0 and 0.0. The functions now block waiting
- for events as expected. Previously, the call was incorrectly non-blocking.
- Patch by Pablo Galindo.
-
-- bpo-31781: Prevent crashes when calling methods of an uninitialized
- ``zipimport.zipimporter`` object. Patch by Oren Milman.
-
-- bpo-30399: Standard repr() of BaseException with a single argument no
- longer contains redundant trailing comma.
-
-- bpo-31626: Fixed a bug in debug memory allocator. There was a write to
- freed memory after shrinking a memory block.
-
-- bpo-30817: `PyErr_PrintEx()` clears now the ignored exception that may be
- raised by `_PySys_SetObjectId()`, for example when no memory.
-
-Library
--------
-
-- bpo-28556: Two minor fixes for ``typing`` module: allow shallow copying
- instances of generic classes, improve interaction of ``__init_subclass__``
- with generics. Original PRs by Ivan Levkivskyi.
-
-- bpo-32214: PEP 557, Data Classes. Provides a decorator which adds
- boilerplate methods to classes which use type annotations so specify
- fields.
-
-- bpo-27240: The header folding algorithm for the new email policies has
- been rewritten, which also fixes bpo-30788, bpo-31831, and bpo-32182. In
- particular, RFC2231 folding is now done correctly.
-
-- bpo-32186: io.FileIO.readall() and io.FileIO.read() now release the GIL
- when getting the file size. Fixed hang of all threads with inaccessible
- NFS server. Patch by Nir Soffer.
-
-- bpo-32101: Add :attr:`sys.flags.dev_mode` flag
-
-- bpo-32154: The ``asyncio.windows_utils.socketpair()`` function has been
- removed: use directly :func:`socket.socketpair` which is available on all
- platforms since Python 3.5 (before, it wasn't available on Windows).
- ``asyncio.windows_utils.socketpair()`` was just an alias to
- ``socket.socketpair`` on Python 3.5 and newer.
-
-- bpo-32089: warnings: In development (-X dev) and debug mode (pydebug
- build), use the "default" action for ResourceWarning, rather than the
- "always" action, in the default warnings filters.
-
-- bpo-32107: ``uuid.getnode()`` now preferentially returns universally
- administered MAC addresses if available, over locally administered MAC
- addresses. This makes a better guarantee for global uniqueness of UUIDs
- returned from ``uuid.uuid1()``. If only locally administered MAC
- addresses are available, the first such one found is returned.
-
-- bpo-23033: Wildcard is now supported in hostname when it is one and only
- character in the left most segment of hostname in second argument of
- :meth:`ssl.match_hostname`. Patch by Mandeep Singh.
-
-- bpo-12239: Make :meth:`msilib.SummaryInformation.GetProperty` return
- ``None`` when the value of property is ``VT_EMPTY``. Initial patch by
- Mark Mc Mahon.
-
-- bpo-28334: Use :func:`os.path.expanduser` to find the ``~/.netrc`` file in
- :class:`netrc.netrc`. If it does not exist, :exc:`FileNotFoundError` is
- raised. Patch by Dimitri Merejkowsky.
-
-- bpo-32121: Made ``tracemalloc.Traceback`` behave more like the traceback
- module, sorting the frames from oldest to most recent.
- ``Traceback.format()`` now accepts negative *limit*, truncating the result
- to the ``abs(limit)`` oldest frames. To get the old behaviour, one can use
- the new *most_recent_first* argument to ``Traceback.format()``. (Patch by
- Jesse Bakker.)
-
-- bpo-31325: Fix wrong usage of :func:`collections.namedtuple` in the
- :meth:`RobotFileParser.parse() <urllib.robotparser.RobotFileParser.parse>`
- method. Initial patch by Robin Wellner.
-
-- bpo-12382: :func:`msilib.OpenDatabase` now raises a better exception
- message when it couldn't open or create an MSI file. Initial patch by
- William Tisäter.
-
-- bpo-19610: ``setup()`` now warns about invalid types for some fields. The
- ``distutils.dist.Distribution`` class now warns when ``classifiers``,
- ``keywords`` and ``platforms`` fields are not specified as a list or a
- string.
-
-- bpo-32071: Added the ``-k`` command-line option to ``python -m unittest``
- to run only tests that match the given pattern(s).
-
-- bpo-10049: Added *nullcontext* no-op context manager to contextlib. This
- provides a simpler and faster alternative to ExitStack() when handling
- optional context managers.
-
-- bpo-28684: The new test.support.skip_unless_bind_unix_socket() decorator
- is used here to skip asyncio tests that fail because the platform lacks a
- functional bind() function for unix domain sockets (as it is the case for
- non root users on the recent Android versions that run now SELinux in
- enforcing mode).
-
-- bpo-32110: ``codecs.StreamReader.read(n)`` now returns not more than *n*
- characters/bytes for non-negative *n*. This makes it compatible with
- ``read()`` methods of other file-like objects.
-
-- bpo-27535: The warnings module doesn't leak memory anymore in the hidden
- warnings registry for the "ignore" action of warnings filters.
- warn_explicit() function doesn't add the warning key to the registry
- anymore for the "ignore" action.
-
-- bpo-32088: warnings: When Python is build is debug mode (``Py_DEBUG``),
- :exc:`DeprecationWarning`, :exc:`PendingDeprecationWarning` and
- :exc:`ImportWarning` warnings are now displayed by default.
-
-- bpo-1647489: Fixed searching regular expression patterns that could match
- an empty string. Non-empty string can now be correctly found after
- matching an empty string.
-
-- bpo-25054: Added support of splitting on a pattern that could match an
- empty string.
-
-- bpo-32072: Fixed issues with binary plists: Fixed saving bytearrays.
- Identical objects will be saved only once. Equal references will be load
- as identical objects. Added support for saving and loading recursive data
- structures.
-
-- bpo-32069: Drop legacy SSL transport from asyncio, ssl.MemoryBIO is always
- used anyway.
-
-- bpo-32066: asyncio: Support pathlib.Path in create_unix_connection; sock
- arg should be optional
-
-- bpo-32046: Updates 2to3 to convert from operator.isCallable(obj) to
- callable(obj). Patch by Dong-hee Na.
-
-- bpo-32018: inspect.signature should follow :pep:`8`, if the parameter has
- an annotation and a default value. Patch by Dong-hee Na.
-
-- bpo-32025: Add time.thread_time() and time.thread_time_ns()
-
-- bpo-32037: Integers that fit in a signed 32-bit integer will be now
- pickled with protocol 0 using the INT opcode. This will decrease the size
- of a pickle, speed up pickling and unpickling, and make these integers be
- unpickled as int instances in Python 2.
-
-- bpo-32034: Make asyncio.IncompleteReadError and LimitOverrunError
- pickleable.
-
-- bpo-32015: Fixed the looping of asyncio in the case of reconnection the
- socket during waiting async read/write from/to the socket.
-
-- bpo-32011: Restored support of loading marshal files with the TYPE_INT64
- code. These files can be produced in Python 2.7.
-
-- bpo-28369: Enhance add_reader/writer check that socket is not used by some
- transport. Before, only cases when add_reader/writer were called with an
- int FD were supported. Now the check is implemented correctly for all
- file-like objects.
-
-- bpo-31976: Fix race condition when flushing a file is slow, which can
- cause a segfault if closing the file from another thread.
-
-- bpo-31985: Formally deprecated aifc.openfp, sunau.openfp, and wave.openfp.
- Since change 7bc817d5ba917528e8bd07ec461c635291e7b06a in 1993, openfp in
- each of the three modules had been pointing to that module's open function
- as a matter of backwards compatibility, though it had been both untested
- and undocumented.
-
-- bpo-21862: cProfile command line now accepts `-m module_name` as an
- alternative to script path. Patch by Sanyam Khurana.
-
-- bpo-31970: Reduce performance overhead of asyncio debug mode.
-
-- bpo-31843: *database* argument of sqlite3.connect() now accepts a
- :term:`path-like object`, instead of just a string.
-
-- bpo-31945: Add Configurable *blocksize* to ``HTTPConnection`` and
- ``HTTPSConnection`` for improved upload throughput. Patch by Nir Soffer.
-
-- bpo-31943: Add a ``cancelled()`` method to :class:`asyncio.Handle`. Patch
- by Marat Sharafutdinov.
-
-- bpo-9678: Fixed determining the MAC address in the uuid module: Using
- ifconfig on NetBSD and OpenBSD. Using arp on Linux, FreeBSD, NetBSD and
- OpenBSD. Based on patch by Takayuki Shimizukawa.
-
-- bpo-30057: Fix potential missed signal in signal.signal().
-
-- bpo-31933: Fix Blake2 params leaf_size and node_offset on big endian
- platforms. Patch by Jack O'Connor.
-
-- bpo-21423: Add an initializer argument to {Process,Thread}PoolExecutor
-
-- bpo-31927: Fixed compilation of the socket module on NetBSD 8. Fixed
- assertion failure or reading arbitrary data when parse a AF_BLUETOOTH
- address on NetBSD and DragonFly BSD.
-
-- bpo-27666: Fixed stack corruption in curses.box() and curses.ungetmouse()
- when the size of types chtype or mmask_t is less than the size of C long.
- curses.box() now accepts characters as arguments. Based on patch by Steve
- Fink.
-
-- bpo-31917: Add 3 new clock identifiers: :data:`time.CLOCK_BOOTTIME`,
- :data:`time.CLOCK_PROF` and :data:`time.CLOCK_UPTIME`.
-
-- bpo-31897: plistlib now catches more errors when read binary plists and
- raises InvalidFileException instead of unexpected exceptions.
-
-- bpo-25720: Fix the method for checking pad state of curses WINDOW. Patch
- by Masayuki Yamamoto.
-
-- bpo-31893: Fixed the layout of the kqueue_event structure on OpenBSD and
- NetBSD. Fixed the comparison of the kqueue_event objects.
-
-- bpo-31891: Fixed building the curses module on NetBSD.
-
-- bpo-31884: added required constants to subprocess module for setting
- priority on windows
-
-- bpo-28281: Remove year (1-9999) limits on the Calendar.weekday() function.
- Patch by Mark Gollahon.
-
-- bpo-31702: crypt.mksalt() now allows to specify the number of rounds for
- SHA-256 and SHA-512 hashing.
-
-- bpo-30639: :func:`inspect.getfile` no longer computes the repr of unknown
- objects to display in an error message, to protect against badly behaved
- custom reprs.
-
-- bpo-30768: Fix the pthread+semaphore implementation of
- PyThread_acquire_lock_timed() when called with timeout > 0 and
- intr_flag=0: recompute the timeout if sem_timedwait() is interrupted by a
- signal (EINTR). See also the :pep:`475`.
-
-- bpo-31854: Add ``mmap.ACCESS_DEFAULT`` constant.
-
-- bpo-31834: Use optimized code for BLAKE2 only with SSSE3+. The pure SSE2
- implementation is slower than the pure C reference implementation.
-
-- bpo-28292: Calendar.itermonthdates() will now consistently raise an
- exception when a date falls outside of the 0001-01-01 through 9999-12-31
- range. To support applications that cannot tolerate such exceptions, the
- new methods itermonthdays3() and itermonthdays4() are added. The new
- methods return tuples and are not restricted by the range supported by
- datetime.date.
-
-- bpo-28564: The shutil.rmtree() function has been sped up to 20--40%. This
- was done using the os.scandir() function.
-
-- bpo-28416: Instances of pickle.Pickler subclass with the persistent_id()
- method and pickle.Unpickler subclass with the persistent_load() method no
- longer create reference cycles.
-
-- bpo-31653: Don't release the GIL if we can acquire a multiprocessing
- semaphore immediately.
-
-- bpo-28326: Fix multiprocessing.Process when stdout and/or stderr is closed
- or None.
-
-- bpo-20825: Add `subnet_of` and `superset_of` containment tests to
- :class:`ipaddress.IPv6Network` and :class:`ipaddress.IPv4Network`. Patch
- by Michel Albert and Cheryl Sabella.
-
-- bpo-31827: Remove the os.stat_float_times() function. It was introduced in
- Python 2.3 for backward compatibility with Python 2.2, and was deprecated
- since Python 3.1.
-
-- bpo-31756: Add a ``subprocess.Popen(text=False)`` keyword argument to
- `subprocess` functions to be more explicit about when the library should
- attempt to decode outputs into text. Patch by Andrew Clegg.
-
-- bpo-31819: Add AbstractEventLoop.sock_recv_into().
-
-- bpo-31457: If nested log adapters are used, the inner ``process()``
- methods are no longer omitted.
-
-- bpo-31457: The ``manager`` property on LoggerAdapter objects is now
- properly settable.
-
-- bpo-31806: Fix timeout rounding in time.sleep(), threading.Lock.acquire()
- and socket.socket.settimeout() to round correctly negative timeouts
- between -1.0 and 0.0. The functions now block waiting for events as
- expected. Previously, the call was incorrectly non-blocking. Patch by
- Pablo Galindo.
-
-- bpo-31803: time.clock() and time.get_clock_info('clock') now emit a
- DeprecationWarning warning.
-
-- bpo-31800: Extended support for parsing UTC offsets. strptime '%z' can now
- parse the output generated by datetime.isoformat, including seconds and
- microseconds.
-
-- bpo-28603: traceback: Fix a TypeError that occurred during printing of
- exception tracebacks when either the current exception or an exception in
- its context/cause chain is unhashable. Patch by Zane Bitter.
-
-- bpo-30541: Add new function to seal a mock and prevent the automatically
- creation of child mocks. Patch by Mario Corchero.
-
-- bpo-31784: Implement the :pep:`564`, add new 6 new functions with
- nanosecond resolution to the :mod:`time` module:
- :func:`~time.clock_gettime_ns`, :func:`~time.clock_settime_ns`,
- :func:`~time.monotonic_ns`, :func:`~time.perf_counter_ns`,
- :func:`~time.process_time_ns`, :func:`~time.time_ns`.
-
-- bpo-30143: 2to3 now generates a code that uses abstract collection classes
- from collections.abc rather than collections.
-
-- bpo-31770: Prevent a crash when calling the ``__init__()`` method of a
- ``sqlite3.Cursor`` object more than once. Patch by Oren Milman.
-
-- bpo-31764: Prevent a crash in ``sqlite3.Cursor.close()`` in case the
- ``Cursor`` object is uninitialized. Patch by Oren Milman.
-
-- bpo-31752: Fix possible crash in timedelta constructor called with custom
- integers.
-
-- bpo-31620: an empty asyncio.Queue now doesn't leak memory when queue.get
- pollers timeout
-
-- bpo-31690: Allow the flags re.ASCII, re.LOCALE, and re.UNICODE to be used
- as group flags for regular expressions.
-
-- bpo-30349: FutureWarning is now emitted if a regular expression contains
- character set constructs that will change semantically in the future
- (nested sets and set operations).
-
-- bpo-31664: Added support for the Blowfish hashing in the crypt module.
-
-- bpo-31632: Fix method set_protocol() of class _SSLProtocolTransport in
- asyncio module. This method was previously modifying a wrong reference to
- the protocol.
-
-- bpo-15037: Added a workaround for getkey() in curses for ncurses 5.7 and
- earlier.
-
-- bpo-31307: Allow use of bytes objects for arguments to
- :meth:`configparser.ConfigParser.read`. Patch by Vincent Michel.
-
-- bpo-31334: Fix ``poll.poll([timeout])`` in the ``select`` module for
- arbitrary negative timeouts on all OSes where it can only be a
- non-negative integer or -1. Patch by Riccardo Coccioli.
-
-- bpo-31310: multiprocessing's semaphore tracker should be launched again if
- crashed.
-
-- bpo-31308: Make multiprocessing's forkserver process immune to Ctrl-C and
- other user interruptions. If it crashes, restart it when necessary.
-
-- bpo-31245: Added support for AF_UNIX socket in asyncio
- `create_datagram_endpoint`.
-
-- bpo-30553: Add HTTP/2 status code 421 (Misdirected Request) to
- :class:`http.HTTPStatus`. Patch by Vitor Pereira.
-
-Documentation
--------------
-
-- bpo-32105: Added asyncio.BaseEventLoop.connect_accepted_socket
- versionadded marker.
-
-Tests
------
-
-- bpo-31380: Skip test_httpservers test_undecodable_file on macOS: fails on
- APFS.
-
-- bpo-31705: Skip test_socket.test_sha256() on Linux kernel older than 4.5.
- The test fails with ENOKEY on kernel 3.10 (on ppc64le). A fix was merged
- into the kernel 4.5.
-
-- bpo-32138: Skip on Android test_faulthandler tests that raise SIGSEGV and
- remove the test.support.requires_android_level decorator.
-
-- bpo-32136: The runtime embedding tests have been split out from
- ``Lib/test/test_capi.py`` into a new ``Lib/test/test_embed.py`` file.
-
-- bpo-28668: test.support.requires_multiprocessing_queue is removed. Skip
- tests with test.support.import_module('multiprocessing.synchronize')
- instead when the semaphore implementation is broken or missing.
-
-- bpo-32126: Skip test_get_event_loop_new_process in
- test.test_asyncio.test_events when sem_open() is not functional.
-
-- bpo-31174: Fix test_tools.test_unparse: DirectoryTestCase now stores the
- names sample to always test the same files. It prevents false alarms when
- hunting reference leaks.
-
-Build
------
-
-- bpo-28538: Revert the previous changes, the if_nameindex structure is
- defined by Unified Headers.
-
-- bpo-28762: Revert the last commit, the F_LOCK macro is defined by Android
- Unified Headers.
-
-- bpo-29040: Support building Android with Unified Headers. The first NDK
- release to support Unified Headers is android-ndk-r14.
-
-- bpo-32059: ``detect_modules()`` in ``setup.py`` now also searches the
- sysroot paths when cross-compiling.
-
-- bpo-31957: Fixes Windows SDK version detection when building for Windows.
-
-- bpo-31609: Fixes quotes in PCbuild/clean.bat
-
-- bpo-31934: Abort the build when building out of a not clean source tree.
-
-- bpo-31926: Fixed Argument Clinic sometimes causing compilation errors when
- there was more than one function and/or method in a .c file with the same
- name.
-
-- bpo-28791: Update Windows builds to use SQLite 3.21.0.
-
-- bpo-28791: Update OS X installer to use SQLite 3.21.0.
-
-- bpo-28643: Record profile-opt build progress with stamp files.
-
-- bpo-31866: Finish removing support for AtheOS.
-
-Windows
--------
-
-- bpo-1102: Return ``None`` when ``View.Fetch()`` returns
- ``ERROR_NO_MORE_ITEMS`` instead of raising ``MSIError``. Initial patch by
- Anthony Tuininga.
-
-- bpo-31944: Fixes Modify button in Apps and Features dialog.
-
-- bpo-20486: Implement the ``Database.Close()`` method to help closing MSI
- database objects.
-
-- bpo-31857: Make the behavior of USE_STACKCHECK deterministic in a
- multi-threaded environment.
-
-macOS
------
-
-- bpo-31392: Update macOS installer to use OpenSSL 1.0.2m
-
-IDLE
-----
-
-- bpo-32207: Improve tk event exception tracebacks in IDLE. When tk event
- handling is driven by IDLE's run loop, a confusing and distracting
- queue.EMPTY traceback context is no longer added to tk event exception
- tracebacks. The traceback is now the same as when event handling is
- driven by user code. Patch based on a suggestion by Serhiy Storchaka.
-
-- bpo-32164: Delete unused file idlelib/tabbedpages.py. Use of TabbedPageSet
- in configdialog was replaced by ttk.Notebook.
-
-- bpo-32100: IDLE: Fix old and new bugs in pathbrowser; improve tests. Patch
- mostly by Cheryl Sabella.
-
-- bpo-31858: IDLE -- Restrict shell prompt manipulation to the shell. Editor
- and output windows only see an empty last prompt line. This simplifies
- the code and fixes a minor bug when newline is inserted. Sys.ps1, if
- present, is read on Shell start-up, but is not set or changed.
-
-- bpo-31860: The font sample in the IDLE configuration dialog is now
- editable. Changes persist while IDLE remains open
-
-- bpo-31836: Test_code_module now passes if run after test_idle, which sets
- ps1. The code module uses sys.ps1 if present or sets it to '>>> ' if not.
- Test_code_module now properly tests both behaviors. Ditto for ps2.
-
-- bpo-28603: Fix a TypeError that caused a shell restart when printing a
- traceback that includes an exception that is unhashable. Patch by Zane
- Bitter.
-
-- bpo-13802: Use non-Latin characters in the IDLE's Font settings sample.
- Even if one selects a font that defines a limited subset of the unicode
- Basic Multilingual Plane, tcl/tk will use other fonts that define a
- character. The expanded example give users of non-Latin characters a
- better idea of what they might see in IDLE's shell and editors. To make
- room for the expanded sample, frames on the Font tab are re-arranged. The
- Font/Tabs help explains a bit about the additions.
-
-Tools/Demos
------------
-
-- bpo-32159: Remove CVS and Subversion tools: remove svneol.py and
- treesync.py scripts. CPython migrated from CVS to Subversion, to
- Mercurial, and then to Git. CVS and Subversion are no longer used to
- develop CPython.
-
-- bpo-30722: Make redemo work with Python 3.6 and newer versions. Also,
- remove the ``LOCALE`` option since it doesn't work with string patterns in
- Python 3. Patch by Christoph Sarnowski.
-
-C API
------
-
-- bpo-20891: Fix PyGILState_Ensure(). When PyGILState_Ensure() is called in
- a non-Python thread before PyEval_InitThreads(), only call
- PyEval_InitThreads() after calling PyThreadState_New() to fix a crash.
-
-- bpo-32125: The ``Py_UseClassExceptionsFlag`` flag has been removed. It was
- deprecated and wasn't used anymore since Python 2.0.
-
-- bpo-25612: Move the current exception state from the frame object to the
- co-routine. This simplifies the interpreter and fixes a couple of obscure
- bugs caused by having swap exception state when entering or exiting a
- generator.
-
-- bpo-23699: Add Py_RETURN_RICHCOMPARE macro to reduce boilerplate code in
- rich comparison functions.
-
-- bpo-30697: The `PyExc_RecursionErrorInst` singleton is removed and
- `PyErr_NormalizeException()` does not use it anymore. This singleton is
- persistent and its members being never cleared may cause a segfault during
- finalization of the interpreter. See also issue #22898.
-
-
-What's New in Python 3.7.0 alpha 2?
-===================================
-
-*Release date: 2017-10-16*
-
-Core and Builtins
------------------
-
-- bpo-31558: ``gc.freeze()`` is a new API that allows for moving all objects
- currently tracked by the garbage collector to a permanent generation,
- effectively removing them from future collection events. This can be used
- to protect those objects from having their PyGC_Head mutated. In effect,
- this enables great copy-on-write stability at fork().
-
-- bpo-31642: Restored blocking "from package import module" by setting
- sys.modules["package.module"] to None.
-
-- bpo-31708: Allow use of asynchronous generator expressions in synchronous
- functions.
-
-- bpo-31709: Drop support of asynchronous __aiter__.
-
-- bpo-30404: The -u option now makes the stdout and stderr streams
- unbuffered rather than line-buffered.
-
-- bpo-31619: Fixed a ValueError when convert a string with large number of
- underscores to integer with binary base.
-
-- bpo-31602: Fix an assertion failure in `zipimporter.get_source()` in case
- of a bad `zlib.decompress()`. Patch by Oren Milman.
-
-- bpo-31592: Fixed an assertion failure in Python parser in case of a bad
- `unicodedata.normalize()`. Patch by Oren Milman.
-
-- bpo-31588: Raise a `TypeError` with a helpful error message when class
- creation fails due to a metaclass with a bad ``__prepare__()`` method.
- Patch by Oren Milman.
-
-- bpo-31574: Importlib was instrumented with two dtrace probes to profile
- import timing.
-
-- bpo-31566: Fix an assertion failure in `_warnings.warn()` in case of a bad
- ``__name__`` global. Patch by Oren Milman.
-
-- bpo-31506: Improved the error message logic for object.__new__ and
- object.__init__.
-
-- bpo-31505: Fix an assertion failure in `json`, in case
- `_json.make_encoder()` received a bad `encoder()` argument. Patch by Oren
- Milman.
-
-- bpo-31492: Fix assertion failures in case of failing to import from a
- module with a bad ``__name__`` attribute, and in case of failing to access
- an attribute of such a module. Patch by Oren Milman.
-
-- bpo-31478: Fix an assertion failure in `_random.Random.seed()` in case the
- argument has a bad ``__abs__()`` method. Patch by Oren Milman.
-
-- bpo-31336: Speed up class creation by 10-20% by reducing the overhead in
- the necessary special method lookups. Patch by Stefan Behnel.
-
-- bpo-31415: Add ``-X importtime`` option to show how long each import
- takes. It can be used to optimize application's startup time. Support the
- :envvar:`PYTHONPROFILEIMPORTTIME` as an equivalent way to enable this.
-
-- bpo-31410: Optimized calling wrapper and classmethod descriptors.
-
-- bpo-31353: :pep:`553` - Add a new built-in called ``breakpoint()`` which
- calls ``sys.breakpointhook()``. By default this imports ``pdb`` and calls
- ``pdb.set_trace()``, but users may override ``sys.breakpointhook()`` to
- call whatever debugger they want. The original value of the hook is saved
- in ``sys.__breakpointhook__``.
-
-- bpo-17852: Maintain a list of open buffered files, flush them before
- exiting the interpreter. Based on a patch from Armin Rigo.
-
-- bpo-31315: Fix an assertion failure in imp.create_dynamic(), when
- spec.name is not a string. Patch by Oren Milman.
-
-- bpo-31311: Fix a crash in the ``__setstate__()`` method of
- `ctypes._CData`, in case of a bad ``__dict__``. Patch by Oren Milman.
-
-- bpo-31293: Fix crashes in true division and multiplication of a timedelta
- object by a float with a bad as_integer_ratio() method. Patch by Oren
- Milman.
-
-- bpo-31285: Fix an assertion failure in `warnings.warn_explicit`, when the
- return value of the received loader's get_source() has a bad splitlines()
- method. Patch by Oren Milman.
-
-- bpo-30406: Make ``async`` and ``await`` proper keywords, as specified in
- :pep:`492`.
-
-Library
--------
-
-- bpo-30058: Fixed buffer overflow in select.kqueue.control().
-
-- bpo-31672: ``idpattern`` in ``string.Template`` matched some non-ASCII
- characters. Now it uses ``-i`` regular expression local flag to avoid
- non-ASCII characters.
-
-- bpo-31701: On Windows, faulthandler.enable() now ignores MSC and COM
- exceptions.
-
-- bpo-31728: Prevent crashes in `_elementtree` due to unsafe cleanup of
- `Element.text` and `Element.tail`. Patch by Oren Milman.
-
-- bpo-31671: Now ``re.compile()`` converts passed RegexFlag to normal int
- object before compiling. bm_regex_compile benchmark shows 14% performance
- improvements.
-
-- bpo-30397: The types of compiled regular objects and match objects are now
- exposed as `re.Pattern` and `re.Match`. This adds information in pydoc
- output for the re module.
-
-- bpo-31675: Fixed memory leaks in Tkinter's methods splitlist() and split()
- when pass a string larger than 2 GiB.
-
-- bpo-31673: Fixed typo in the name of Tkinter's method adderrorinfo().
-
-- bpo-31648: Improvements to path predicates in ElementTree: Allow
- whitespace around predicate parts, i.e. "[a = 'text']" instead of
- requiring the less readable "[a='text']". Add support for text comparison
- of the current node, like "[.='text']". Patch by Stefan Behnel.
-
-- bpo-30806: Fix the string representation of a netrc object.
-
-- bpo-31638: Add optional argument ``compressed`` to
- ``zipapp.create_archive``, and add option ``--compress`` to the command
- line interface of ``zipapp``.
-
-- bpo-25351: Avoid venv activate failures with undefined variables
-
-- bpo-20519: Avoid ctypes use (if possible) and improve import time for
- uuid.
-
-- bpo-28293: The regular expression cache is no longer completely dumped
- when it is full.
-
-- bpo-31596: Added pthread_getcpuclockid() to the time module
-
-- bpo-27494: Make 2to3 accept a trailing comma in generator expressions. For
- example, ``set(x for x in [],)`` is now allowed.
-
-- bpo-30347: Stop crashes when concurrently iterate over itertools.groupby()
- iterators.
-
-- bpo-30346: An iterator produced by itertools.groupby() iterator now
- becomes exhausted after advancing the groupby iterator.
-
-- bpo-31556: Cancel asyncio.wait_for future faster if timeout <= 0
-
-- bpo-31540: Allow passing a context object in
- :class:`concurrent.futures.ProcessPoolExecutor` constructor. Also, free
- job resources in :class:`concurrent.futures.ProcessPoolExecutor` earlier
- to improve memory usage when a worker waits for new jobs.
-
-- bpo-31516: ``threading.current_thread()`` should not return a dummy thread
- at shutdown.
-
-- bpo-31525: In the sqlite module, require the sqlite3_prepare_v2 API. Thus,
- the sqlite module now requires sqlite version at least 3.3.9.
-
-- bpo-26510: argparse subparsers are now required by default. This matches
- behaviour in Python 2. For optional subparsers, use the new parameter
- ``add_subparsers(required=False)``. Patch by Anthony Sottile. (As of
- 3.7.0rc1, the default was changed to not required as had been the case
- since Python 3.3.)
-
-- bpo-27541: Reprs of subclasses of some collection and iterator classes
- (`bytearray`, `array.array`, `collections.deque`,
- `collections.defaultdict`, `itertools.count`, `itertools.repeat`) now
- contain actual type name insteads of hardcoded name of the base class.
-
-- bpo-31351: python -m ensurepip now exits with non-zero exit code if pip
- bootstrapping has failed.
-
-- bpo-31389: ``pdb.set_trace()`` now takes an optional keyword-only argument
- ``header``. If given, this is printed to the console just before debugging
- begins.
-
-Documentation
--------------
-
-- bpo-31537: Fix incorrect usage of ``get_history_length`` in readline
- documentation example code. Patch by Brad Smith.
-
-- bpo-30085: The operator functions without double underscores are preferred
- for clarity. The one with underscores are only kept for
- back-compatibility.
-
-Build
------
-
-- bpo-31696: Improve compiler version information in :data:`sys.version`
- when Python is built with Clang.
-
-- bpo-31625: Stop using ranlib on static libraries. Instead, we assume ar
- supports the 's' flag.
-
-- bpo-31624: Remove support for BSD/OS.
-
-- bpo-22140: Prevent double substitution of prefix in python-config.sh.
-
-- bpo-31569: Correct PCBuild/ case to PCbuild/ in build scripts and
- documentation.
-
-- bpo-31536: Avoid wholesale rebuild after `make regen-all` if nothing
- changed.
-
-IDLE
-----
-
-- bpo-31460: Simplify the API of IDLE's Module Browser. Passing a widget
- instead of an flist with a root widget opens the option of creating a
- browser frame that is only part of a window. Passing a full file name
- instead of pieces assumed to come from a .py file opens the possibility of
- browsing python files that do not end in .py.
-
-- bpo-31649: IDLE - Make _htest, _utest parameters keyword only.
-
-- bpo-31559: Remove test order dependence in idle_test.test_browser.
-
-- bpo-31459: Rename IDLE's module browser from Class Browser to Module
- Browser. The original module-level class and method browser became a
- module browser, with the addition of module-level functions, years ago.
- Nested classes and functions were added yesterday. For
- back-compatibility, the virtual event <<open-class-browser>>, which
- appears on the Keys tab of the Settings dialog, is not changed. Patch by
- Cheryl Sabella.
-
-- bpo-31500: Default fonts now are scaled on HiDPI displays.
-
-- bpo-1612262: IDLE module browser now shows nested classes and functions.
- Original patches for code and tests by Guilherme Polo and Cheryl Sabella,
- respectively.
-
-C API
------
-
-- bpo-28280: Make `PyMapping_Keys()`, `PyMapping_Values()` and
- `PyMapping_Items()` always return a `list` (rather than a `list` or a
- `tuple`). Patch by Oren Milman.
-
-- bpo-31532: Fix memory corruption due to allocator mix in getpath.c between
- Py_GetPath() and Py_SetPath()
-
-- bpo-25658: Implement :pep:`539` for Thread Specific Storage (TSS) API: it
- is a new Thread Local Storage (TLS) API to CPython which would supersede
- use of the existing TLS API within the CPython interpreter, while
- deprecating the existing API. PEP written by Erik M. Bray, patch by
- Masayuki Yamamoto.
-
-
-What's New in Python 3.7.0 alpha 1?
-===================================
-
-*Release date: 2017-09-19*
-
-Security
---------
-
-- bpo-29781: SSLObject.version() now correctly returns None when handshake
- over BIO has not been performed yet.
-
-- bpo-29505: Add fuzz tests for float(str), int(str), unicode(str); for
- oss-fuzz.
-
-- bpo-30947: Upgrade libexpat embedded copy from version 2.2.1 to 2.2.3 to
- get security fixes.
-
-- bpo-30730: Prevent environment variables injection in subprocess on
- Windows. Prevent passing other environment variables and command
- arguments.
-
-- bpo-30694: Upgrade expat copy from 2.2.0 to 2.2.1 to get fixes of multiple
- security vulnerabilities including: CVE-2017-9233 (External entity
- infinite loop DoS), CVE-2016-9063 (Integer overflow, re-fix),
- CVE-2016-0718 (Fix regression bugs from 2.2.0's fix to CVE-2016-0718) and
- CVE-2012-0876 (Counter hash flooding with SipHash). Note: the
- CVE-2016-5300 (Use os-specific entropy sources like getrandom) doesn't
- impact Python, since Python already gets entropy from the OS to set the
- expat secret using ``XML_SetHashSalt()``.
-
-- bpo-30500: Fix urllib.parse.splithost() to correctly parse fragments. For
- example, ``splithost('//127.0.0.1#@evil.com/')`` now correctly returns the
- ``127.0.0.1`` host, instead of treating ``@evil.com`` as the host in an
- authentication (``login@host``).
-
-- bpo-29591: Update expat copy from 2.1.1 to 2.2.0 to get fixes of
- CVE-2016-0718 and CVE-2016-4472. See
- https://sourceforge.net/p/expat/bugs/537/ for more information.
-
-Core and Builtins
------------------
-
-- bpo-31490: Fix an assertion failure in `ctypes` class definition, in case
- the class has an attribute whose name is specified in ``_anonymous_`` but
- not in ``_fields_``. Patch by Oren Milman.
-
-- bpo-31471: Fix an assertion failure in `subprocess.Popen()` on Windows, in
- case the env argument has a bad keys() method. Patch by Oren Milman.
-
-- bpo-31418: Fix an assertion failure in `PyErr_WriteUnraisable()` in case
- of an exception with a bad ``__module__`` attribute. Patch by Oren Milman.
-
-- bpo-31416: Fix assertion failures in case of a bad warnings.filters or
- warnings.defaultaction. Patch by Oren Milman.
-
-- bpo-28411: Change direct usage of PyInterpreterState.modules to
- PyImport_GetModuleDict(). Also introduce more uniformity in other code
- that deals with sys.modules. This helps reduce complications when working
- on sys.modules.
-
-- bpo-28411: Switch to the abstract API when dealing with
- ``PyInterpreterState.modules``. This allows later support for all dict
- subclasses and other Mapping implementations. Also add a
- ``PyImport_GetModule()`` function to reduce a bunch of duplicated code.
-
-- bpo-31411: Raise a TypeError instead of SystemError in case
- warnings.onceregistry is not a dictionary. Patch by Oren Milman.
-
-- bpo-31344: For finer control of tracing behaviour when testing the
- interpreter, two new frame attributes have been added to control the
- emission of particular trace events: ``f_trace_lines`` (``True`` by
- default) to turn off per-line trace events; and ``f_trace_opcodes``
- (``False`` by default) to turn on per-opcode trace events.
-
-- bpo-31373: Fix several possible instances of undefined behavior due to
- floating-point demotions.
-
-- bpo-30465: Location information (``lineno`` and ``col_offset``) in
- f-strings is now (mostly) correct. This fixes tools like flake8 from
- showing warnings on the wrong line (typically the first line of the file).
-
-- bpo-30860: Consolidate CPython's global runtime state under a single
- struct. This improves discoverability of the runtime state.
-
-- bpo-31347: Fix possible undefined behavior in _PyObject_FastCall_Prepend.
-
-- bpo-31343: Include sys/sysmacros.h for major(), minor(), and makedev().
- GNU C libray plans to remove the functions from sys/types.h.
-
-- bpo-31291: Fix an assertion failure in `zipimport.zipimporter.get_data` on
- Windows, when the return value of ``pathname.replace('/','\\')`` isn't a
- string. Patch by Oren Milman.
-
-- bpo-31271: Fix an assertion failure in the write() method of
- `io.TextIOWrapper`, when the encoder doesn't return a bytes object. Patch
- by Oren Milman.
-
-- bpo-31243: Fix a crash in some methods of `io.TextIOWrapper`, when the
- decoder's state is invalid. Patch by Oren Milman.
-
-- bpo-30721: ``print`` now shows correct usage hint for using Python 2
- redirection syntax. Patch by Sanyam Khurana.
-
-- bpo-31070: Fix a race condition in importlib _get_module_lock().
-
-- bpo-30747: Add a non-dummy implementation of _Py_atomic_store and
- _Py_atomic_load on MSVC.
-
-- bpo-31095: Fix potential crash during GC caused by ``tp_dealloc`` which
- doesn't call ``PyObject_GC_UnTrack()``.
-
-- bpo-31071: Avoid masking original TypeError in call with * unpacking when
- other arguments are passed.
-
-- bpo-30978: str.format_map() now passes key lookup exceptions through.
- Previously any exception was replaced with a KeyError exception.
-
-- bpo-30808: Use _Py_atomic API for concurrency-sensitive signal state.
-
-- bpo-30876: Relative import from unloaded package now reimports the package
- instead of failing with SystemError. Relative import from non-package now
- fails with ImportError rather than SystemError.
-
-- bpo-30703: Improve signal delivery. Avoid using Py_AddPendingCall from
- signal handler, to avoid calling signal-unsafe functions. The tests I'm
- adding here fail without the rest of the patch, on Linux and OS X. This
- means our signal delivery logic had defects (some signals could be lost).
-
-- bpo-30765: Avoid blocking in pthread_mutex_lock() when
- PyThread_acquire_lock() is asked not to block.
-
-- bpo-31161: Make sure the 'Missing parentheses' syntax error message is
- only applied to SyntaxError, not to subclasses. Patch by Martijn Pieters.
-
-- bpo-30814: Fixed a race condition when import a submodule from a package.
-
-- bpo-30736: The internal unicodedata database has been upgraded to Unicode
- 10.0.
-
-- bpo-30604: Move co_extra_freefuncs from per-thread to per-interpreter to
- avoid crashes.
-
-- bpo-30597: ``print`` now shows expected input in custom error message when
- used as a Python 2 statement. Patch by Sanyam Khurana.
-
-- bpo-30682: Removed a too-strict assertion that failed for certain
- f-strings, such as eval("f'\\\n'") and eval("f'\\\r'").
-
-- bpo-30501: The compiler now produces more optimal code for complex
- condition expressions in the "if", "while" and "assert" statement, the
- "if" expression, and generator expressions and comprehensions.
-
-- bpo-28180: Implement :pep:`538` (legacy C locale coercion). This means
- that when a suitable coercion target locale is available, both the core
- interpreter and locale-aware C extensions will assume the use of UTF-8 as
- the default text encoding, rather than ASCII.
-
-- bpo-30486: Allows setting cell values for __closure__. Patch by Lisa
- Roach.
-
-- bpo-30537: itertools.islice now accepts integer-like objects (having an
- __index__ method) as start, stop, and slice arguments
-
-- bpo-25324: Tokens needed for parsing in Python moved to C. ``COMMENT``,
- ``NL`` and ``ENCODING``. This way the tokens and tok_names in the token
- module don't get changed when you import the tokenize module.
-
-- bpo-29104: Fixed parsing backslashes in f-strings.
-
-- bpo-27945: Fixed various segfaults with dict when input collections are
- mutated during searching, inserting or comparing. Based on patches by
- Duane Griffin and Tim Mitchell.
-
-- bpo-25794: Fixed type.__setattr__() and type.__delattr__() for
- non-interned attribute names. Based on patch by Eryk Sun.
-
-- bpo-30039: If a KeyboardInterrupt happens when the interpreter is in the
- middle of resuming a chain of nested 'yield from' or 'await' calls, it's
- now correctly delivered to the innermost frame.
-
-- bpo-28974: ``object.__format__(x, '')`` is now equivalent to ``str(x)``
- rather than ``format(str(self), '')``.
-
-- bpo-30024: Circular imports involving absolute imports with binding a
- submodule to a name are now supported.
-
-- bpo-12414: sys.getsizeof() on a code object now returns the sizes which
- includes the code struct and sizes of objects which it references. Patch
- by Dong-hee Na.
-
-- bpo-29839: len() now raises ValueError rather than OverflowError if
- __len__() returned a large negative integer.
-
-- bpo-11913: README.rst is now included in the list of distutils standard
- READMEs and therefore included in source distributions.
-
-- bpo-29914: Fixed default implementations of __reduce__ and
- __reduce_ex__(). object.__reduce__() no longer takes arguments,
- object.__reduce_ex__() now requires one argument.
-
-- bpo-29949: Fix memory usage regression of set and frozenset object.
-
-- bpo-29935: Fixed error messages in the index() method of tuple, list and
- deque when pass indices of wrong type.
-
-- bpo-29816: Shift operation now has less opportunity to raise
- OverflowError. ValueError always is raised rather than OverflowError for
- negative counts. Shifting zero with non-negative count always returns
- zero.
-
-- bpo-24821: Fixed the slowing down to 25 times in the searching of some
- unlucky Unicode characters.
-
-- bpo-29102: Add a unique ID to PyInterpreterState. This makes it easier to
- identify each subinterpreter.
-
-- bpo-29894: The deprecation warning is emitted if __complex__ returns an
- instance of a strict subclass of complex. In a future versions of Python
- this can be an error.
-
-- bpo-29859: Show correct error messages when any of the pthread_* calls in
- thread_pthread.h fails.
-
-- bpo-29849: Fix a memory leak when an ImportError is raised during from
- import.
-
-- bpo-28856: Fix an oversight that %b format for bytes should support
- objects follow the buffer protocol.
-
-- bpo-29723: The ``sys.path[0]`` initialization change for bpo-29139 caused
- a regression by revealing an inconsistency in how sys.path is initialized
- when executing ``__main__`` from a zipfile, directory, or other import
- location. The interpreter now consistently avoids ever adding the import
- location's parent directory to ``sys.path``, and ensures no other
- ``sys.path`` entries are inadvertently modified when inserting the import
- location named on the command line.
-
-- bpo-29568: Escaped percent "%%" in the format string for classic string
- formatting no longer allows any characters between two percents.
-
-- bpo-29714: Fix a regression that bytes format may fail when containing
- zero bytes inside.
-
-- bpo-29695: bool(), float(), list() and tuple() no longer take keyword
- arguments. The first argument of int() can now be passes only as
- positional argument.
-
-- bpo-28893: Set correct __cause__ for errors about invalid awaitables
- returned from __aiter__ and __anext__.
-
-- bpo-28876: ``bool(range)`` works even if ``len(range)`` raises
- :exc:`OverflowError`.
-
-- bpo-29683: Fixes to memory allocation in _PyCode_SetExtra. Patch by Brian
- Coleman.
-
-- bpo-29684: Fix minor regression of PyEval_CallObjectWithKeywords. It
- should raise TypeError when kwargs is not a dict. But it might cause segv
- when args=NULL and kwargs is not a dict.
-
-- bpo-28598: Support __rmod__ for subclasses of str being called before
- str.__mod__. Patch by Martijn Pieters.
-
-- bpo-29607: Fix stack_effect computation for CALL_FUNCTION_EX. Patch by
- Matthieu Dartiailh.
-
-- bpo-29602: Fix incorrect handling of signed zeros in complex constructor
- for complex subclasses and for inputs having a __complex__ method. Patch
- by Serhiy Storchaka.
-
-- bpo-29347: Fixed possibly dereferencing undefined pointers when creating
- weakref objects.
-
-- bpo-29463: Add ``docstring`` field to Module, ClassDef, FunctionDef, and
- AsyncFunctionDef ast nodes. docstring is not first stmt in their body
- anymore. It affects ``co_firstlineno`` and ``co_lnotab`` of code object
- for module and class. (Reverted in :issue:`32911`.)
-
-- bpo-29438: Fixed use-after-free problem in key sharing dict.
-
-- bpo-29546: Set the 'path' and 'name' attribute on ImportError for ``from
- ... import ...``.
-
-- bpo-29546: Improve from-import error message with location
-
-- bpo-29478: If max_line_length=None is specified while using the Compat32
- policy, it is no longer ignored. Patch by Mircea Cosbuc.
-
-- bpo-29319: Prevent RunMainFromImporter overwriting sys.path[0].
-
-- bpo-29337: Fixed possible BytesWarning when compare the code objects.
- Warnings could be emitted at compile time.
-
-- bpo-29327: Fixed a crash when pass the iterable keyword argument to
- sorted().
-
-- bpo-29034: Fix memory leak and use-after-free in os module
- (path_converter).
-
-- bpo-29159: Fix regression in bytes(x) when x.__index__() raises Exception.
-
-- bpo-29049: Call _PyObject_GC_TRACK() lazily when calling Python function.
- Calling function is up to 5% faster.
-
-- bpo-28927: bytes.fromhex() and bytearray.fromhex() now ignore all ASCII
- whitespace, not only spaces. Patch by Robert Xiao.
-
-- bpo-28932: Do not include <sys/random.h> if it does not exist.
-
-- bpo-25677: Correct the positioning of the syntax error caret for indented
- blocks. Based on patch by Michael Layzell.
-
-- bpo-29000: Fixed bytes formatting of octals with zero padding in alternate
- form.
-
-- bpo-18896: Python function can now have more than 255 parameters.
- collections.namedtuple() now supports tuples with more than 255 elements.
-
-- bpo-28596: The preferred encoding is UTF-8 on Android. Patch written by
- Chi Hsuan Yen.
-
-- bpo-22257: Clean up interpreter startup (see :pep:`432`).
-
-- bpo-26919: On Android, operating system data is now always encoded/decoded
- to/from UTF-8, instead of the locale encoding to avoid inconsistencies
- with os.fsencode() and os.fsdecode() which are already using UTF-8.
-
-- bpo-28991: functools.lru_cache() was susceptible to an obscure reentrancy
- bug triggerable by a monkey-patched len() function.
-
-- bpo-28147: Fix a memory leak in split-table dictionaries: setattr() must
- not convert combined table into split table. Patch written by INADA Naoki.
-
-- bpo-28739: f-string expressions are no longer accepted as docstrings and
- by ast.literal_eval() even if they do not include expressions.
-
-- bpo-28512: Fixed setting the offset attribute of SyntaxError by
- PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
-
-- bpo-28918: Fix the cross compilation of xxlimited when Python has been
- built with Py_DEBUG defined.
-
-- bpo-23722: Rather than silently producing a class that doesn't support
- zero-argument ``super()`` in methods, failing to pass the new
- ``__classcell__`` namespace entry up to ``type.__new__`` now results in a
- ``DeprecationWarning`` and a class that supports zero-argument
- ``super()``.
-
-- bpo-28797: Modifying the class __dict__ inside the __set_name__ method of
- a descriptor that is used inside that class no longer prevents calling the
- __set_name__ method of other descriptors.
-
-- bpo-28799: Remove the ``PyEval_GetCallStats()`` function and deprecate the
- untested and undocumented ``sys.callstats()`` function. Remove the
- ``CALL_PROFILE`` special build: use the :func:`sys.setprofile` function,
- :mod:`cProfile` or :mod:`profile` to profile function calls.
-
-- bpo-12844: More than 255 arguments can now be passed to a function.
-
-- bpo-28782: Fix a bug in the implementation ``yield from`` when checking if
- the next instruction is YIELD_FROM. Regression introduced by WORDCODE
- (issue #26647).
-
-- bpo-28774: Fix error position of the unicode error in ASCII and Latin1
- encoders when a string returned by the error handler contains multiple
- non-encodable characters (non-ASCII for the ASCII codec, characters out of
- the U+0000-U+00FF range for Latin1).
-
-- bpo-28731: Optimize _PyDict_NewPresized() to create correct size dict.
- Improve speed of dict literal with constant keys up to 30%.
-
-- bpo-28532: Show sys.version when -V option is supplied twice.
-
-- bpo-27100: The with-statement now checks for __enter__ before it checks
- for __exit__. This gives less confusing error messages when both methods
- are missing. Patch by Jonathan Ellington.
-
-- bpo-28746: Fix the set_inheritable() file descriptor method on platforms
- that do not have the ioctl FIOCLEX and FIONCLEX commands.
-
-- bpo-26920: Fix not getting the locale's charset upon initializing the
- interpreter, on platforms that do not have langinfo.
-
-- bpo-28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X
- when decode astral characters. Patch by Xiang Zhang.
-
-- bpo-28665: Improve speed of the STORE_DEREF opcode by 40%.
-
-- bpo-19398: Extra slash no longer added to sys.path components in case of
- empty compile-time PYTHONPATH components.
-
-- bpo-28621: Sped up converting int to float by reusing faster bits counting
- implementation. Patch by Adrian Wielgosik.
-
-- bpo-28580: Optimize iterating split table values. Patch by Xiang Zhang.
-
-- bpo-28583: PyDict_SetDefault didn't combine split table when needed. Patch
- by Xiang Zhang.
-
-- bpo-28128: Deprecation warning for invalid str and byte escape sequences
- now prints better information about where the error occurs. Patch by
- Serhiy Storchaka and Eric Smith.
-
-- bpo-28509: dict.update() no longer allocate unnecessary large memory.
-
-- bpo-28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug
- build.
-
-- bpo-28517: Fixed of-by-one error in the peephole optimizer that caused
- keeping unreachable code.
-
-- bpo-28214: Improved exception reporting for problematic __set_name__
- attributes.
-
-- bpo-23782: Fixed possible memory leak in _PyTraceback_Add() and exception
- loss in PyTraceBack_Here().
-
-- bpo-28183: Optimize and cleanup dict iteration.
-
-- bpo-26081: Added C implementation of asyncio.Future. Original patch by
- Yury Selivanov.
-
-- bpo-28379: Added sanity checks and tests for PyUnicode_CopyCharacters().
- Patch by Xiang Zhang.
-
-- bpo-28376: The type of long range iterator is now registered as Iterator.
- Patch by Oren Milman.
-
-- bpo-28376: Creating instances of range_iterator by calling range_iterator
- type now is disallowed. Calling iter() on range instance is the only way.
- Patch by Oren Milman.
-
-- bpo-26906: Resolving special methods of uninitialized type now causes
- implicit initialization of the type instead of a fail.
-
-- bpo-18287: PyType_Ready() now checks that tp_name is not NULL. Original
- patch by Niklas Koep.
-
-- bpo-24098: Fixed possible crash when AST is changed in process of
- compiling it.
-
-- bpo-28201: Dict reduces possibility of 2nd conflict in hash table when
- hashes have same lower bits.
-
-- bpo-28350: String constants with null character no longer interned.
-
-- bpo-26617: Fix crash when GC runs during weakref callbacks.
-
-- bpo-27942: String constants now interned recursively in tuples and
- frozensets.
-
-- bpo-28289: ImportError.__init__ now resets not specified attributes.
-
-- bpo-21578: Fixed misleading error message when ImportError called with
- invalid keyword args.
-
-- bpo-28203: Fix incorrect type in complex(1.0, {2:3}) error message. Patch
- by Soumya Sharma.
-
-- bpo-28086: Single var-positional argument of tuple subtype was passed
- unscathed to the C-defined function. Now it is converted to exact tuple.
-
-- bpo-28214: Now __set_name__ is looked up on the class instead of the
- instance.
-
-- bpo-27955: Fallback on reading /dev/urandom device when the getrandom()
- syscall fails with EPERM, for example when blocked by SECCOMP.
-
-- bpo-28192: Don't import readline in isolated mode.
-
-- bpo-27441: Remove some redundant assignments to ob_size in longobject.c.
- Thanks Oren Milman.
-
-- bpo-27222: Clean up redundant code in long_rshift function. Thanks Oren
- Milman.
-
-- Upgrade internal unicode databases to Unicode version 9.0.0.
-
-- bpo-28131: Fix a regression in zipimport's compile_source(). zipimport
- should use the same optimization level as the interpreter.
-
-- bpo-28126: Replace Py_MEMCPY with memcpy(). Visual Studio can properly
- optimize memcpy().
-
-- bpo-28120: Fix dict.pop() for splitted dictionary when trying to remove a
- "pending key" (Not yet inserted in split-table). Patch by Xiang Zhang.
-
-- bpo-26182: Raise DeprecationWarning when async and await keywords are used
- as variable/attribute/class/function name.
-
-- bpo-26182: Fix a refleak in code that raises DeprecationWarning.
-
-- bpo-28721: Fix asynchronous generators aclose() and athrow() to handle
- StopAsyncIteration propagation properly.
-
-- bpo-26110: Speed-up method calls: add LOAD_METHOD and CALL_METHOD opcodes.
-
-Library
--------
-
-- bpo-31499: xml.etree: Fix a crash when a parser is part of a reference
- cycle.
-
-- bpo-31482: ``random.seed()`` now works with bytes in version=1
-
-- bpo-28556: typing.get_type_hints now finds the right globalns for classes
- and modules by default (when no ``globalns`` was specified by the caller).
-
-- bpo-28556: Speed improvements to the ``typing`` module. Original PRs by
- Ivan Levkivskyi and Mitar.
-
-- bpo-31544: The C accelerator module of ElementTree ignored exceptions
- raised when looking up TreeBuilder target methods in XMLParser().
-
-- bpo-31234: socket.create_connection() now fixes manually a reference
- cycle: clear the variable storing the last exception on success.
-
-- bpo-31457: LoggerAdapter objects can now be nested.
-
-- bpo-31431: SSLContext.check_hostname now automatically sets
- SSLContext.verify_mode to ssl.CERT_REQUIRED instead of failing with a
- ValueError.
-
-- bpo-31233: socketserver.ThreadingMixIn now keeps a list of non-daemonic
- threads to wait until all these threads complete in server_close().
-
-- bpo-28638: Changed the implementation strategy for
- collections.namedtuple() to substantially reduce the use of exec() in
- favor of precomputed methods. As a result, the *verbose* parameter and
- *_source* attribute are no longer supported. The benefits include 1)
- having a smaller memory footprint for applications using multiple named
- tuples, 2) faster creation of the named tuple class (approx 4x to 6x
- depending on how it is measured), and 3) minor speed-ups for instance
- creation using __new__, _make, and _replace. (The primary patch
- contributor is Jelle Zijlstra with further improvements by INADA Naoki,
- Serhiy Storchaka, and Raymond Hettinger.)
-
-- bpo-31400: Improves SSL error handling to avoid losing error numbers.
-
-- bpo-27629: Make return types of SSLContext.wrap_bio() and
- SSLContext.wrap_socket() customizable.
-
-- bpo-28958: ssl.SSLContext() now uses OpenSSL error information when a
- context cannot be instantiated.
-
-- bpo-28182: The SSL module now raises SSLCertVerificationError when OpenSSL
- fails to verify the peer's certificate. The exception contains more
- information about the error.
-
-- bpo-27340: SSLSocket.sendall() now uses memoryview to create slices of
- data. This fixes support for all bytes-like object. It is also more
- efficient and avoids costly copies.
-
-- bpo-14191: A new function
- ``argparse.ArgumentParser.parse_intermixed_args`` provides the ability to
- parse command lines where there user intermixes options and positional
- arguments.
-
-- bpo-31178: Fix string concatenation bug in rare error path in the
- subprocess module
-
-- bpo-31350: Micro-optimize :func:`asyncio._get_running_loop` to become up
- to 10% faster.
-
-- bpo-31170: expat: Update libexpat from 2.2.3 to 2.2.4. Fix copying of
- partial characters for UTF-8 input (libexpat bug 115):
- https://github.com/libexpat/libexpat/issues/115
-
-- bpo-29136: Add TLS 1.3 cipher suites and OP_NO_TLSv1_3.
-
-- bpo-1198569: ``string.Template`` subclasses can optionally define
- ``braceidpattern`` if they want to specify different placeholder patterns
- inside and outside the braces. If None (the default) it falls back to
- ``idpattern``.
-
-- bpo-31326: concurrent.futures.ProcessPoolExecutor.shutdown() now
- explicitly closes the call queue. Moreover, shutdown(wait=True) now also
- join the call queue thread, to prevent leaking a dangling thread.
-
-- bpo-27144: The ``map()`` and ``as_completed()`` iterators in
- ``concurrent.futures`` now avoid keeping a reference to yielded objects.
-
-- bpo-31281: Fix ``fileinput.FileInput(files, inplace=True)`` when ``files``
- contain ``pathlib.Path`` objects.
-
-- bpo-10746: Fix ctypes producing wrong :pep:`3118` type codes for integer
- types.
-
-- bpo-27584: ``AF_VSOCK`` has been added to the socket interface which
- allows communication between virtual machines and their host.
-
-- bpo-22536: The subprocess module now sets the filename when
- FileNotFoundError is raised on POSIX systems due to the executable or cwd
- not being found.
-
-- bpo-29741: Update some methods in the _pyio module to also accept integer
- types. Patch by Oren Milman.
-
-- bpo-31249: concurrent.futures: WorkItem.run() used by ThreadPoolExecutor
- now breaks a reference cycle between an exception object and the WorkItem
- object.
-
-- bpo-31247: xmlrpc.server now explicitly breaks reference cycles when using
- sys.exc_info() in code handling exceptions.
-
-- bpo-23835: configparser: reading defaults in the ``ConfigParser()``
- constructor is now using ``read_dict()``, making its behavior consistent
- with the rest of the parser. Non-string keys and values in the defaults
- dictionary are now being implicitly converted to strings. Patch by James
- Tocknell.
-
-- bpo-31238: pydoc: the stop() method of the private ServerThread class now
- waits until DocServer.serve_until_quit() completes and then explicitly
- sets its docserver attribute to None to break a reference cycle.
-
-- bpo-5001: Many asserts in `multiprocessing` are now more informative, and
- some error types have been changed to more specific ones.
-
-- bpo-31109: Convert zipimport to use Argument Clinic.
-
-- bpo-30102: The ssl and hashlib modules now call
- OPENSSL_add_all_algorithms_noconf() on OpenSSL < 1.1.0. The function
- detects CPU features and enables optimizations on some CPU architectures
- such as POWER8. Patch is based on research from Gustavo Serra Scalet.
-
-- bpo-18966: Non-daemonic threads created by a multiprocessing.Process are
- now joined on child exit.
-
-- bpo-31183: `dis` now works with asynchronous generator and coroutine
- objects. Patch by George Collins based on diagnosis by Luciano Ramalho.
-
-- bpo-5001: There are a number of uninformative asserts in the
- `multiprocessing` module, as noted in issue 5001. This change fixes two of
- the most potentially problematic ones, since they are in error-reporting
- code, in the `multiprocessing.managers.convert_to_error` function. (It
- also makes more informative a ValueError message.) The only potentially
- problematic change is that the AssertionError is now a TypeError; however,
- this should also help distinguish it from an AssertionError being
- *reported* by the function/its caller (such as in issue 31169). - Patch by
- Allen W. Smith (drallensmith on github).
-
-- bpo-31185: Fixed miscellaneous errors in asyncio speedup module.
-
-- bpo-31151: socketserver.ForkingMixIn.server_close() now waits until all
- child processes completed to prevent leaking zombie processes.
-
-- bpo-31072: Add an ``include_file`` parameter to
- ``zipapp.create_archive()``
-
-- bpo-24700: Optimize array.array comparison. It is now from 10x up to 70x
- faster when comparing arrays holding values of the same integer type.
-
-- bpo-31135: ttk: fix the destroy() method of LabeledScale and OptionMenu
- classes. Call the parent destroy() method even if the used attribute
- doesn't exist. The LabeledScale.destroy() method now also explicitly
- clears label and scale attributes to help the garbage collector to destroy
- all widgets.
-
-- bpo-31107: Fix `copyreg._slotnames()` mangled attribute calculation for
- classes whose name begins with an underscore. Patch by Shane Harvey.
-
-- bpo-31080: Allow `logging.config.fileConfig` to accept kwargs and/or args.
-
-- bpo-30897: ``pathlib.Path`` objects now include an ``is_mount()`` method
- (only implemented on POSIX). This is similar to ``os.path.ismount(p)``.
- Patch by Cooper Ry Lees.
-
-- bpo-31061: Fixed a crash when using asyncio and threads.
-
-- bpo-30987: Added support for CAN ISO-TP protocol in the socket module.
-
-- bpo-30522: Added a ``setStream`` method to ``logging.StreamHandler`` to
- allow the stream to be set after creation.
-
-- bpo-30502: Fix handling of long oids in ssl. Based on patch by Christian
- Heimes.
-
-- bpo-5288: Support tzinfo objects with sub-minute offsets.
-
-- bpo-30919: Fix shared memory performance regression in multiprocessing in
- 3.x. Shared memory used anonymous memory mappings in 2.x, while 3.x mmaps
- actual files. Try to be careful to do as little disk I/O as possible.
-
-- bpo-26732: Fix too many fds in processes started with the "forkserver"
- method. A child process would inherit as many fds as the number of
- still-running children.
-
-- bpo-29403: Fix ``unittest.mock``'s autospec to not fail on method-bound
- builtin functions. Patch by Aaron Gallagher.
-
-- bpo-30961: Fix decrementing a borrowed reference in tracemalloc.
-
-- bpo-19896: Fix multiprocessing.sharedctypes to recognize typecodes ``'q'``
- and ``'Q'``.
-
-- bpo-30946: Remove obsolete code in readline module for platforms where GNU
- readline is older than 2.1 or where select() is not available.
-
-- bpo-25684: Change ``ttk.OptionMenu`` radiobuttons to be unique across
- instances of ``OptionMenu``.
-
-- bpo-30886: Fix multiprocessing.Queue.join_thread(): it now waits until the
- thread completes, even if the thread was started by the same process which
- created the queue.
-
-- bpo-29854: Fix segfault in readline when using readline's history-size
- option. Patch by Nir Soffer.
-
-- bpo-30794: Added multiprocessing.Process.kill method to terminate using
- the SIGKILL signal on Unix.
-
-- bpo-30319: socket.close() now ignores ECONNRESET error.
-
-- bpo-30828: Fix out of bounds write in
- `asyncio.CFuture.remove_done_callback()`.
-
-- bpo-30302: Use keywords in the ``repr`` of ``datetime.timedelta``.
-
-- bpo-30807: signal.setitimer() may disable the timer when passed a tiny
- value. Tiny values (such as 1e-6) are valid non-zero values for
- setitimer(), which is specified as taking microsecond-resolution
- intervals. However, on some platform, our conversion routine could convert
- 1e-6 into a zero interval, therefore disabling the timer instead of
- (re-)scheduling it.
-
-- bpo-30441: Fix bug when modifying os.environ while iterating over it
-
-- bpo-29585: Avoid importing ``sysconfig`` from ``site`` to improve startup
- speed. Python startup is about 5% faster on Linux and 30% faster on macOS.
-
-- bpo-29293: Add missing parameter "n" on
- multiprocessing.Condition.notify(). The doc claims
- multiprocessing.Condition behaves like threading.Condition, but its
- notify() method lacked the optional "n" argument (to specify the number of
- sleepers to wake up) that threading.Condition.notify() accepts.
-
-- bpo-30532: Fix email header value parser dropping folding white space in
- certain cases.
-
-- bpo-30596: Add a ``close()`` method to ``multiprocessing.Process``.
-
-- bpo-9146: Fix a segmentation fault in _hashopenssl when standard hash
- functions such as md5 are not available in the linked OpenSSL library. As
- in some special FIPS-140 build environments.
-
-- bpo-29169: Update zlib to 1.2.11.
-
-- bpo-30119: ftplib.FTP.putline() now throws ValueError on commands that
- contains CR or LF. Patch by Dong-hee Na.
-
-- bpo-30879: os.listdir() and os.scandir() now emit bytes names when called
- with bytes-like argument.
-
-- bpo-30746: Prohibited the '=' character in environment variable names in
- ``os.putenv()`` and ``os.spawn*()``.
-
-- bpo-30664: The description of a unittest subtest now preserves the order
- of keyword arguments of TestCase.subTest().
-
-- bpo-21071: struct.Struct.format type is now :class:`str` instead of
- :class:`bytes`.
-
-- bpo-29212: Fix concurrent.futures.thread.ThreadPoolExecutor threads to
- have a non repr() based thread name by default when no thread_name_prefix
- is supplied. They will now identify themselves as
- "ThreadPoolExecutor-y_n".
-
-- bpo-29755: Fixed the lgettext() family of functions in the gettext module.
- They now always return bytes.
-
-- bpo-30616: Functional API of enum allows to create empty enums. Patched by
- Dong-hee Na
-
-- bpo-30038: Fix race condition between signal delivery and wakeup file
- descriptor. Patch by Nathaniel Smith.
-
-- bpo-23894: lib2to3 now recognizes ``rb'...'`` and ``f'...'`` strings.
-
-- bpo-24744: pkgutil.walk_packages function now raises ValueError if *path*
- is a string. Patch by Sanyam Khurana.
-
-- bpo-24484: Avoid race condition in multiprocessing cleanup.
-
-- bpo-30589: Fix multiprocessing.Process.exitcode to return the opposite of
- the signal number when the process is killed by a signal (instead of 255)
- when using the "forkserver" method.
-
-- bpo-28994: The traceback no longer displayed for SystemExit raised in a
- callback registered by atexit.
-
-- bpo-30508: Don't log exceptions if Task/Future "cancel()" method was
- called.
-
-- bpo-30645: Fix path calculation in `imp.load_package()`, fixing it for
- cases when a package is only shipped with bytecodes. Patch by Alexandru
- Ardelean.
-
-- bpo-11822: The dis.dis() function now is able to disassemble nested code
- objects.
-
-- bpo-30624: selectors does not take KeyboardInterrupt and SystemExit into
- account, leaving a fd in a bad state in case of error. Patch by Giampaolo
- Rodola'.
-
-- bpo-30595: multiprocessing.Queue.get() with a timeout now polls its reader
- in non-blocking mode if it succeeded to acquire the lock but the acquire
- took longer than the timeout.
-
-- bpo-28556: Updates to typing module: Add generic AsyncContextManager, add
- support for ContextManager on all versions. Original PRs by Jelle Zijlstra
- and Ivan Levkivskyi
-
-- bpo-30605: re.compile() no longer raises a BytesWarning when compiling a
- bytes instance with misplaced inline modifier. Patch by Roy Williams.
-
-- bpo-29870: Fix ssl sockets leaks when connection is aborted in asyncio/ssl
- implementation. Patch by Michaël Sghaïer.
-
-- bpo-29743: Closing transport during handshake process leaks open socket.
- Patch by Nikolay Kim
-
-- bpo-27585: Fix waiter cancellation in asyncio.Lock. Patch by Mathieu
- Sornay.
-
-- bpo-30014: modify() method of poll(), epoll() and devpoll() based classes
- of selectors module is around 10% faster. Patch by Giampaolo Rodola'.
-
-- bpo-30418: On Windows, subprocess.Popen.communicate() now also ignore
- EINVAL on stdin.write() if the child process is still running but closed
- the pipe.
-
-- bpo-30463: Addded empty __slots__ to abc.ABC. This allows subclassers to
- deny __dict__ and __weakref__ creation. Patch by Aaron Hall.
-
-- bpo-30520: Loggers are now pickleable.
-
-- bpo-30557: faulthandler now correctly filters and displays exception codes
- on Windows
-
-- bpo-30526: Add TextIOWrapper.reconfigure() and a
- TextIOWrapper.write_through attribute.
-
-- bpo-30245: Fix possible overflow when organize struct.pack_into error
- message. Patch by Yuan Liu.
-
-- bpo-30378: Fix the problem that logging.handlers.SysLogHandler cannot
- handle IPv6 addresses.
-
-- bpo-16500: Allow registering at-fork handlers.
-
-- bpo-30470: Deprecate invalid ctypes call protection on Windows. Patch by
- Mariatta Wijaya.
-
-- bpo-30414: multiprocessing.Queue._feed background running thread do not
- break from main loop on exception.
-
-- bpo-30003: Fix handling escape characters in HZ codec. Based on patch by
- Ma Lin.
-
-- bpo-30149: inspect.signature() now supports callables with
- variable-argument parameters wrapped with partialmethod. Patch by Dong-hee
- Na.
-
-- bpo-30436: importlib.find_spec() raises ModuleNotFoundError instead of
- AttributeError if the specified parent module is not a package (i.e. lacks
- a __path__ attribute).
-
-- bpo-30301: Fix AttributeError when using SimpleQueue.empty() under *spawn*
- and *forkserver* start methods.
-
-- bpo-30375: Warnings emitted when compile a regular expression now always
- point to the line in the user code. Previously they could point into
- inners of the re module if emitted from inside of groups or conditionals.
-
-- bpo-30329: imaplib and poplib now catch the Windows socket WSAEINVAL error
- (code 10022) on shutdown(SHUT_RDWR): An invalid operation was attempted.
- This error occurs sometimes on SSL connections.
-
-- bpo-29196: Removed previously deprecated in Python 2.4 classes Plist, Dict
- and _InternalDict in the plistlib module. Dict values in the result of
- functions readPlist() and readPlistFromBytes() are now normal dicts. You
- no longer can use attribute access to access items of these dictionaries.
-
-- bpo-9850: The :mod:`macpath` is now deprecated and will be removed in
- Python 3.8.
-
-- bpo-30299: Compiling regular expression in debug mode on CPython now
- displays the compiled bytecode in human readable form.
-
-- bpo-30048: Fixed ``Task.cancel()`` can be ignored when the task is running
- coroutine and the coroutine returned without any more ``await``.
-
-- bpo-30266: contextlib.AbstractContextManager now supports
- anti-registration by setting __enter__ = None or __exit__ = None,
- following the pattern introduced in bpo-25958. Patch by Jelle Zijlstra.
-
-- bpo-30340: Enhanced regular expressions optimization. This increased the
- performance of matching some patterns up to 25 times.
-
-- bpo-30298: Weaken the condition of deprecation warnings for inline
- modifiers. Now allowed several subsequential inline modifiers at the start
- of the pattern (e.g. ``'(?i)(?s)...'``). In verbose mode whitespaces and
- comments now are allowed before and between inline modifiers (e.g. ``'(?x)
- (?i) (?s)...'``).
-
-- bpo-30285: Optimized case-insensitive matching and searching of regular
- expressions.
-
-- bpo-29990: Fix range checking in GB18030 decoder. Original patch by Ma
- Lin.
-
-- bpo-29979: rewrite cgi.parse_multipart, reusing the FieldStorage class and
- making its results consistent with those of FieldStorage for
- multipart/form-data requests. Patch by Pierre Quentel.
-
-- bpo-30243: Removed the __init__ methods of _json's scanner and encoder.
- Misusing them could cause memory leaks or crashes. Now scanner and
- encoder objects are completely initialized in the __new__ methods.
-
-- bpo-30215: Compiled regular expression objects with the re.LOCALE flag no
- longer depend on the locale at compile time. Only the locale at matching
- time affects the result of matching.
-
-- bpo-30185: Avoid KeyboardInterrupt tracebacks in forkserver helper process
- when Ctrl-C is received.
-
-- bpo-30103: binascii.b2a_uu() and uu.encode() now support using ``'`'`` as
- zero instead of space.
-
-- bpo-28556: Various updates to typing module: add typing.NoReturn type, use
- WrapperDescriptorType, minor bug-fixes. Original PRs by Jim
- Fasarakis-Hilliard and Ivan Levkivskyi.
-
-- bpo-30205: Fix getsockname() for unbound AF_UNIX sockets on Linux.
-
-- bpo-30228: The seek() and tell() methods of io.FileIO now set the internal
- seekable attribute to avoid one syscall on open() (in buffered or text
- mode).
-
-- bpo-30190: unittest's assertAlmostEqual and assertNotAlmostEqual provide a
- better message in case of failure which includes the difference between
- left and right arguments. (patch by Giampaolo Rodola')
-
-- bpo-30101: Add support for curses.A_ITALIC.
-
-- bpo-29822: inspect.isabstract() now works during __init_subclass__. Patch
- by Nate Soares.
-
-- bpo-29960: Preserve generator state when _random.Random.setstate() raises
- an exception. Patch by Bryan Olson.
-
-- bpo-30070: Fixed leaks and crashes in errors handling in the parser
- module.
-
-- bpo-22352: Column widths in the output of dis.dis() are now adjusted for
- large line numbers and instruction offsets.
-
-- bpo-30061: Fixed crashes in IOBase methods __next__() and readlines() when
- readline() or __next__() respectively return non-sizeable object. Fixed
- possible other errors caused by not checking results of PyObject_Size(),
- PySequence_Size(), or PyMapping_Size().
-
-- bpo-30218: Fix PathLike support for shutil.unpack_archive. Patch by Jelle
- Zijlstra.
-
-- bpo-10076: Compiled regular expression and match objects in the re module
- now support copy.copy() and copy.deepcopy() (they are considered atomic).
-
-- bpo-30068: _io._IOBase.readlines will check if it's closed first when hint
- is present.
-
-- bpo-29694: Fixed race condition in pathlib mkdir with flags parents=True.
- Patch by Armin Rigo.
-
-- bpo-29692: Fixed arbitrary unchaining of RuntimeError exceptions in
- contextlib.contextmanager. Patch by Siddharth Velankar.
-
-- bpo-26187: Test that sqlite3 trace callback is not called multiple times
- when schema is changing. Indirectly fixed by switching to use
- sqlite3_prepare_v2() in bpo-9303. Patch by Aviv Palivoda.
-
-- bpo-30017: Allowed calling the close() method of the zip entry writer
- object multiple times. Writing to a closed writer now always produces a
- ValueError.
-
-- bpo-29998: Pickling and copying ImportError now preserves name and path
- attributes.
-
-- bpo-29995: re.escape() now escapes only regex special characters.
-
-- bpo-29962: Add math.remainder operation, implementing remainder as
- specified in IEEE 754.
-
-- bpo-29649: Improve struct.pack_into() exception messages for problems with
- the buffer size and offset. Patch by Andrew Nester.
-
-- bpo-29654: Support If-Modified-Since HTTP header (browser cache). Patch
- by Pierre Quentel.
-
-- bpo-29931: Fixed comparison check for ipaddress.ip_interface objects.
- Patch by Sanjay Sundaresan.
-
-- bpo-29953: Fixed memory leaks in the replace() method of datetime and time
- objects when pass out of bound fold argument.
-
-- bpo-29942: Fix a crash in itertools.chain.from_iterable when encountering
- long runs of empty iterables.
-
-- bpo-10030: Sped up reading encrypted ZIP files by 2 times.
-
-- bpo-29204: Element.getiterator() and the html parameter of XMLParser()
- were deprecated only in the documentation (since Python 3.2 and 3.4
- correspondingly). Now using them emits a deprecation warning.
-
-- bpo-27863: Fixed multiple crashes in ElementTree caused by race conditions
- and wrong types.
-
-- bpo-25996: Added support of file descriptors in os.scandir() on Unix.
- os.fwalk() is sped up by 2 times by using os.scandir().
-
-- bpo-28699: Fixed a bug in pools in multiprocessing.pool that raising an
- exception at the very first of an iterable may swallow the exception or
- make the program hang. Patch by Davin Potts and Xiang Zhang.
-
-- bpo-23890: unittest.TestCase.assertRaises() now manually breaks a
- reference cycle to not keep objects alive longer than expected.
-
-- bpo-29901: The zipapp module now supports general path-like objects, not
- just pathlib.Path.
-
-- bpo-25803: Avoid incorrect errors raised by Path.mkdir(exist_ok=True) when
- the OS gives priority to errors such as EACCES over EEXIST.
-
-- bpo-29861: Release references to tasks, their arguments and their results
- as soon as they are finished in multiprocessing.Pool.
-
-- bpo-19930: The mode argument of os.makedirs() no longer affects the file
- permission bits of newly created intermediate-level directories.
-
-- bpo-29884: faulthandler: Restore the old sigaltstack during teardown.
- Patch by Christophe Zeitouny.
-
-- bpo-25455: Fixed crashes in repr of recursive buffered file-like objects.
-
-- bpo-29800: Fix crashes in partial.__repr__ if the keys of partial.keywords
- are not strings. Patch by Michael Seifert.
-
-- bpo-8256: Fixed possible failing or crashing input() if attributes
- "encoding" or "errors" of sys.stdin or sys.stdout are not set or are not
- strings.
-
-- bpo-28692: Using non-integer value for selecting a plural form in gettext
- is now deprecated.
-
-- bpo-26121: Use C library implementation for math functions erf() and
- erfc().
-
-- bpo-29619: os.stat() and os.DirEntry.inode() now convert inode (st_ino)
- using unsigned integers.
-
-- bpo-28298: Fix a bug that prevented array 'Q', 'L' and 'I' from accepting
- big intables (objects that have __int__) as elements.
-
-- bpo-29645: Speed up importing the webbrowser module.
- webbrowser.register() is now thread-safe.
-
-- bpo-28231: The zipfile module now accepts path-like objects for external
- paths.
-
-- bpo-26915: index() and count() methods of collections.abc.Sequence now
- check identity before checking equality when do comparisons.
-
-- bpo-28682: Added support for bytes paths in os.fwalk().
-
-- bpo-29728: Add new :data:`socket.TCP_NOTSENT_LOWAT` (Linux 3.12) constant.
- Patch by Nathaniel J. Smith.
-
-- bpo-29623: Allow use of path-like object as a single argument in
- ConfigParser.read(). Patch by David Ellis.
-
-- bpo-9303: Migrate sqlite3 module to _v2 API. Patch by Aviv Palivoda.
-
-- bpo-28963: Fix out of bound iteration in
- asyncio.Future.remove_done_callback implemented in C.
-
-- bpo-29704: asyncio.subprocess.SubprocessStreamProtocol no longer closes
- before all pipes are closed.
-
-- bpo-29271: Fix Task.current_task and Task.all_tasks implemented in C to
- accept None argument as their pure Python implementation.
-
-- bpo-29703: Fix asyncio to support instantiation of new event loops in
- child processes.
-
-- bpo-29615: SimpleXMLRPCDispatcher no longer chains KeyError (or any other
- exception) to exception(s) raised in the dispatched methods. Patch by Petr
- Motejlek.
-
-- bpo-7769: Method register_function() of
- xmlrpc.server.SimpleXMLRPCDispatcher and its subclasses can now be used as
- a decorator.
-
-- bpo-29376: Fix assertion error in threading._DummyThread.is_alive().
-
-- bpo-28624: Add a test that checks that cwd parameter of Popen() accepts
- PathLike objects. Patch by Sayan Chowdhury.
-
-- bpo-28518: Start a transaction implicitly before a DML statement. Patch by
- Aviv Palivoda.
-
-- bpo-29742: get_extra_info() raises exception if get called on closed ssl
- transport. Patch by Nikolay Kim.
-
-- bpo-16285: urllib.parse.quote is now based on RFC 3986 and hence includes
- '~' in the set of characters that is not quoted by default. Patch by
- Christian Theune and Ratnadeep Debnath.
-
-- bpo-29532: Altering a kwarg dictionary passed to functools.partial() no
- longer affects a partial object after creation.
-
-- bpo-29110: Fix file object leak in aifc.open() when file is given as a
- filesystem path and is not in valid AIFF format. Patch by Anthony Zhang.
-
-- bpo-22807: Add uuid.SafeUUID and uuid.UUID.is_safe to relay information
- from the platform about whether generated UUIDs are generated with a
- multiprocessing safe method.
-
-- bpo-29576: Improve some deprecations in importlib. Some deprecated methods
- now emit DeprecationWarnings and have better descriptive messages.
-
-- bpo-29534: Fixed different behaviour of Decimal.from_float() for _decimal
- and _pydecimal. Thanks Andrew Nester.
-
-- bpo-10379: locale.format_string now supports the 'monetary' keyword
- argument, and locale.format is deprecated.
-
-- bpo-29851: importlib.reload() now raises ModuleNotFoundError if the module
- lacks a spec.
-
-- bpo-28556: Various updates to typing module: typing.Counter,
- typing.ChainMap, improved ABC caching, etc. Original PRs by Jelle
- Zijlstra, Ivan Levkivskyi, Manuel Krebber, and Łukasz Langa.
-
-- bpo-29100: Fix datetime.fromtimestamp() regression introduced in Python
- 3.6.0: check minimum and maximum years.
-
-- bpo-29416: Prevent infinite loop in pathlib.Path.mkdir
-
-- bpo-29444: Fixed out-of-bounds buffer access in the group() method of the
- match object. Based on patch by WGH.
-
-- bpo-29377: Add WrapperDescriptorType, MethodWrapperType, and
- MethodDescriptorType built-in types to types module. Original patch by
- Manuel Krebber.
-
-- bpo-29218: Unused install_misc command is now removed. It has been
- documented as unused since 2000. Patch by Eric N. Vander Weele.
-
-- bpo-29368: The extend() method is now called instead of the append()
- method when unpickle collections.deque and other list-like objects. This
- can speed up unpickling to 2 times.
-
-- bpo-29338: The help of a builtin or extension class now includes the
- constructor signature if __text_signature__ is provided for the class.
-
-- bpo-29335: Fix subprocess.Popen.wait() when the child process has exited
- to a stopped instead of terminated state (ex: when under ptrace).
-
-- bpo-29290: Fix a regression in argparse that help messages would wrap at
- non-breaking spaces.
-
-- bpo-28735: Fixed the comparison of mock.MagickMock with mock.ANY.
-
-- bpo-29197: Removed deprecated function ntpath.splitunc().
-
-- bpo-29210: Removed support of deprecated argument "exclude" in
- tarfile.TarFile.add().
-
-- bpo-29219: Fixed infinite recursion in the repr of uninitialized
- ctypes.CDLL instances.
-
-- bpo-29192: Removed deprecated features in the http.cookies module.
-
-- bpo-29193: A format string argument for string.Formatter.format() is now
- positional-only.
-
-- bpo-29195: Removed support of deprecated undocumented keyword arguments in
- methods of regular expression objects.
-
-- bpo-28969: Fixed race condition in C implementation of
- functools.lru_cache. KeyError could be raised when cached function with
- full cache was simultaneously called from different threads with the same
- uncached arguments.
-
-- bpo-20804: The unittest.mock.sentinel attributes now preserve their
- identity when they are copied or pickled.
-
-- bpo-29142: In urllib.request, suffixes in no_proxy environment variable
- with leading dots could match related hostnames again (e.g. .b.c matches
- a.b.c). Patch by Milan Oberkirch.
-
-- bpo-28961: Fix unittest.mock._Call helper: don't ignore the name parameter
- anymore. Patch written by Jiajun Huang.
-
-- bpo-15812: inspect.getframeinfo() now correctly shows the first line of a
- context. Patch by Sam Breese.
-
-- bpo-28985: Update authorizer constants in sqlite3 module. Patch by
- Dingyuan Wang.
-
-- bpo-29079: Prevent infinite loop in pathlib.resolve() on Windows
-
-- bpo-13051: Fixed recursion errors in large or resized
- curses.textpad.Textbox. Based on patch by Tycho Andersen.
-
-- bpo-9770: curses.ascii predicates now work correctly with negative
- integers.
-
-- bpo-28427: old keys should not remove new values from WeakValueDictionary
- when collecting from another thread.
-
-- bpo-28923: Remove editor artifacts from Tix.py.
-
-- bpo-28871: Fixed a crash when deallocate deep ElementTree.
-
-- bpo-19542: Fix bugs in WeakValueDictionary.setdefault() and
- WeakValueDictionary.pop() when a GC collection happens in another thread.
-
-- bpo-20191: Fixed a crash in resource.prlimit() when passing a sequence
- that doesn't own its elements as limits.
-
-- bpo-16255: subprocess.Popen uses /system/bin/sh on Android as the shell,
- instead of /bin/sh.
-
-- bpo-28779: multiprocessing.set_forkserver_preload() would crash the
- forkserver process if a preloaded module instantiated some multiprocessing
- objects such as locks.
-
-- bpo-26937: The chown() method of the tarfile.TarFile class does not fail
- now when the grp module cannot be imported, as for example on Android
- platforms.
-
-- bpo-28847: dbm.dumb now supports reading read-only files and no longer
- writes the index file when it is not changed. A deprecation warning is
- now emitted if the index file is missed and recreated in the 'r' and 'w'
- modes (will be an error in future Python releases).
-
-- bpo-27030: Unknown escapes consisting of ``'\'`` and an ASCII letter in
- re.sub() replacement templates regular expressions now are errors.
-
-- bpo-28835: Fix a regression introduced in warnings.catch_warnings(): call
- warnings.showwarning() if it was overridden inside the context manager.
-
-- bpo-27172: To assist with upgrades from 2.7, the previously documented
- deprecation of ``inspect.getfullargspec()`` has been reversed. This
- decision may be revisited again after the Python 2.7 branch is no longer
- officially supported.
-
-- bpo-28740: Add sys.getandroidapilevel(): return the build time API version
- of Android as an integer. Function only available on Android.
-
-- bpo-26273: Add new :data:`socket.TCP_CONGESTION` (Linux 2.6.13) and
- :data:`socket.TCP_USER_TIMEOUT` (Linux 2.6.37) constants. Patch written by
- Omar Sandoval.
-
-- bpo-28752: Restored the __reduce__() methods of datetime objects.
-
-- bpo-28727: Regular expression patterns, _sre.SRE_Pattern objects created
- by re.compile(), become comparable (only x==y and x!=y operators). This
- change should fix the issue #18383: don't duplicate warning filters when
- the warnings module is reloaded (thing usually only done in unit tests).
-
-- bpo-20572: Remove the subprocess.Popen.wait endtime parameter. It was
- deprecated in 3.4 and undocumented prior to that.
-
-- bpo-25659: In ctypes, prevent a crash calling the from_buffer() and
- from_buffer_copy() methods on abstract classes like Array.
-
-- bpo-28548: In the "http.server" module, parse the protocol version if
- possible, to avoid using HTTP 0.9 in some error responses.
-
-- bpo-19717: Makes Path.resolve() succeed on paths that do not exist. Patch
- by Vajrasky Kok
-
-- bpo-28563: Fixed possible DoS and arbitrary code execution when handle
- plural form selections in the gettext module. The expression parser now
- supports exact syntax supported by GNU gettext.
-
-- bpo-28387: Fixed possible crash in _io.TextIOWrapper deallocator when the
- garbage collector is invoked in other thread. Based on patch by Sebastian
- Cufre.
-
-- bpo-27517: LZMA compressor and decompressor no longer raise exceptions if
- given empty data twice. Patch by Benjamin Fogle.
-
-- bpo-28549: Fixed segfault in curses's addch() with ncurses6.
-
-- bpo-28449: tarfile.open() with mode "r" or "r:" now tries to open a tar
- file with compression before trying to open it without compression.
- Otherwise it had 50% chance failed with ignore_zeros=True.
-
-- bpo-23262: The webbrowser module now supports Firefox 36+ and derived
- browsers. Based on patch by Oleg Broytman.
-
-- bpo-24241: The webbrowser in an X environment now prefers using the
- default browser directly. Also, the webbrowser register() function now has
- a documented 'preferred' argument, to specify browsers to be returned by
- get() with no arguments. Patch by David Steele
-
-- bpo-27939: Fixed bugs in tkinter.ttk.LabeledScale and tkinter.Scale caused
- by representing the scale as float value internally in Tk. tkinter.IntVar
- now works if float value is set to underlying Tk variable.
-
-- bpo-28255: calendar.TextCalendar.prweek() no longer prints a space after a
- weeks's calendar. calendar.TextCalendar.pryear() no longer prints
- redundant newline after a year's calendar. Based on patch by Xiang Zhang.
-
-- bpo-28255: calendar.TextCalendar.prmonth() no longer prints a space at the
- start of new line after printing a month's calendar. Patch by Xiang
- Zhang.
-
-- bpo-20491: The textwrap.TextWrapper class now honors non-breaking spaces.
- Based on patch by Kaarle Ritvanen.
-
-- bpo-28353: os.fwalk() no longer fails on broken links.
-
-- bpo-28430: Fix iterator of C implemented asyncio.Future doesn't accept
- non-None value is passed to it.send(val).
-
-- bpo-27025: Generated names for Tkinter widgets now start by the "!" prefix
- for readability.
-
-- bpo-25464: Fixed HList.header_exists() in tkinter.tix module by addin a
- workaround to Tix library bug.
-
-- bpo-28488: shutil.make_archive() no longer adds entry "./" to ZIP archive.
-
-- bpo-25953: re.sub() now raises an error for invalid numerical group
- reference in replacement template even if the pattern is not found in the
- string. Error message for invalid group reference now includes the group
- index and the position of the reference. Based on patch by SilentGhost.
-
-- bpo-28469: timeit now uses the sequence 1, 2, 5, 10, 20, 50,... instead of
- 1, 10, 100,... for autoranging.
-
-- bpo-28115: Command-line interface of the zipfile module now uses argparse.
- Added support of long options.
-
-- bpo-18219: Optimize csv.DictWriter for large number of columns. Patch by
- Mariatta Wijaya.
-
-- bpo-28448: Fix C implemented asyncio.Future didn't work on Windows.
-
-- bpo-23214: In the "io" module, the argument to BufferedReader and
- BytesIO's read1() methods is now optional and can be -1, matching the
- BufferedIOBase specification.
-
-- bpo-28480: Fix error building socket module when multithreading is
- disabled.
-
-- bpo-28240: timeit: remove ``-c/--clock`` and ``-t/--time`` command line
- options which were deprecated since Python 3.3.
-
-- bpo-28240: timeit now repeats the benchmarks 5 times instead of only 3 to
- make benchmarks more reliable.
-
-- bpo-28240: timeit autorange now uses a single loop iteration if the
- benchmark takes less than 10 seconds, instead of 10 iterations. "python3
- -m timeit -s 'import time' 'time.sleep(1)'" now takes 4 seconds instead of
- 40 seconds.
-
-- Distutils.sdist now looks for README and setup.py files with case
- sensitivity. This behavior matches that found in Setuptools 6.0 and later.
- See `setuptools 100 <https://github.com/pypa/setuptools/issues/100>`_ for
- rationale.
-
-- bpo-24452: Make webbrowser support Chrome on Mac OS X. Patch by Ned
- Batchelder.
-
-- bpo-20766: Fix references leaked by pdb in the handling of SIGINT
- handlers.
-
-- bpo-27998: Fixed bytes path support in os.scandir() on Windows. Patch by
- Eryk Sun.
-
-- bpo-28317: The disassembler now decodes FORMAT_VALUE argument.
-
-- bpo-28380: unittest.mock Mock autospec functions now properly support
- assert_called, assert_not_called, and assert_called_once.
-
-- bpo-28229: lzma module now supports pathlib.
-
-- bpo-28321: Fixed writing non-BMP characters with binary format in
- plistlib.
-
-- bpo-28225: bz2 module now supports pathlib. Initial patch by Ethan
- Furman.
-
-- bpo-28227: gzip now supports pathlib. Patch by Ethan Furman.
-
-- bpo-28332: Deprecated silent truncations in socket.htons and socket.ntohs.
- Original patch by Oren Milman.
-
-- bpo-27358: Optimized merging var-keyword arguments and improved error
- message when passing a non-mapping as a var-keyword argument.
-
-- bpo-28257: Improved error message when passing a non-iterable as a
- var-positional argument. Added opcode BUILD_TUPLE_UNPACK_WITH_CALL.
-
-- bpo-28322: Fixed possible crashes when unpickle itertools objects from
- incorrect pickle data. Based on patch by John Leitch.
-
-- bpo-28228: imghdr now supports pathlib.
-
-- bpo-28226: compileall now supports pathlib.
-
-- bpo-28314: Fix function declaration (C flags) for the getiterator() method
- of xml.etree.ElementTree.Element.
-
-- bpo-28148: Stop using localtime() and gmtime() in the time module.
- Introduced platform independent _PyTime_localtime API that is similar to
- POSIX localtime_r, but available on all platforms. Patch by Ed Schouten.
-
-- bpo-28253: Fixed calendar functions for extreme months: 0001-01 and
- 9999-12. Methods itermonthdays() and itermonthdays2() are reimplemented so
- that they don't call itermonthdates() which can cause datetime.date
- under/overflow.
-
-- bpo-28275: Fixed possible use after free in the decompress() methods of
- the LZMADecompressor and BZ2Decompressor classes. Original patch by John
- Leitch.
-
-- bpo-27897: Fixed possible crash in sqlite3.Connection.create_collation()
- if pass invalid string-like object as a name. Patch by Xiang Zhang.
-
-- bpo-18844: random.choices() now has k as a keyword-only argument to
- improve the readability of common cases and come into line with the
- signature used in other languages.
-
-- bpo-18893: Fix invalid exception handling in Lib/ctypes/macholib/dyld.py.
- Patch by Madison May.
-
-- bpo-27611: Fixed support of default root window in the tkinter.tix module.
- Added the master parameter in the DisplayStyle constructor.
-
-- bpo-27348: In the traceback module, restore the formatting of exception
- messages like "Exception: None". This fixes a regression introduced in
- 3.5a2.
-
-- bpo-25651: Allow falsy values to be used for msg parameter of subTest().
-
-- bpo-27778: Fix a memory leak in os.getrandom() when the getrandom() is
- interrupted by a signal and a signal handler raises a Python exception.
-
-- bpo-28200: Fix memory leak on Windows in the os module (fix
- path_converter() function).
-
-- bpo-25400: RobotFileParser now correctly returns default values for
- crawl_delay and request_rate. Initial patch by Peter Wirtz.
-
-- bpo-27932: Prevent memory leak in win32_ver().
-
-- Fix UnboundLocalError in socket._sendfile_use_sendfile.
-
-- bpo-28075: Check for ERROR_ACCESS_DENIED in Windows implementation of
- os.stat(). Patch by Eryk Sun.
-
-- bpo-22493: Warning message emitted by using inline flags in the middle of
- regular expression now contains a (truncated) regex pattern. Patch by Tim
- Graham.
-
-- bpo-25270: Prevent codecs.escape_encode() from raising SystemError when an
- empty bytestring is passed.
-
-- bpo-28181: Get antigravity over HTTPS. Patch by Kaartic Sivaraam.
-
-- bpo-25895: Enable WebSocket URL schemes in urllib.parse.urljoin. Patch by
- Gergely Imreh and Markus Holtermann.
-
-- bpo-28114: Fix a crash in parse_envlist() when env contains byte strings.
- Patch by Eryk Sun.
-
-- bpo-27599: Fixed buffer overrun in binascii.b2a_qp() and
- binascii.a2b_qp().
-
-- bpo-27906: Fix socket accept exhaustion during high TCP traffic. Patch by
- Kevin Conway.
-
-- bpo-28174: Handle when SO_REUSEPORT isn't properly supported. Patch by
- Seth Michael Larson.
-
-- bpo-26654: Inspect functools.partial in asyncio.Handle.__repr__. Patch by
- iceboy.
-
-- bpo-26909: Fix slow pipes IO in asyncio. Patch by INADA Naoki.
-
-- bpo-28176: Fix callbacks race in asyncio.SelectorLoop.sock_connect.
-
-- bpo-27759: Fix selectors incorrectly retain invalid file descriptors.
- Patch by Mark Williams.
-
-- bpo-28325: Remove vestigial MacOS 9 macurl2path module and its tests.
-
-- bpo-28368: Refuse monitoring processes if the child watcher has no loop
- attached. Patch by Vincent Michel.
-
-- bpo-28369: Raise RuntimeError when transport's FD is used with add_reader,
- add_writer, etc.
-
-- bpo-28370: Speedup asyncio.StreamReader.readexactly. Patch by Коренберг
- Марк.
-
-- bpo-28371: Deprecate passing asyncio.Handles to run_in_executor.
-
-- bpo-28372: Fix asyncio to support formatting of non-python coroutines.
-
-- bpo-28399: Remove UNIX socket from FS before binding. Patch by Коренберг
- Марк.
-
-- bpo-27972: Prohibit Tasks to await on themselves.
-
-- bpo-24142: Reading a corrupt config file left configparser in an invalid
- state. Original patch by Florian Höch.
-
-- bpo-29581: ABCMeta.__new__ now accepts ``**kwargs``, allowing abstract
- base classes to use keyword parameters in __init_subclass__. Patch by Nate
- Soares.
-
-- bpo-25532: inspect.unwrap() will now only try to unwrap an object
- sys.getrecursionlimit() times, to protect against objects which create a
- new object on every attribute access.
-
-- bpo-30177: path.resolve(strict=False) no longer cuts the path after the
- first element not present in the filesystem. Patch by Antoine Pietri.
-
-Documentation
--------------
-
-- bpo-31294: Fix incomplete code snippet in the ZeroMQSocketListener and
- ZeroMQSocketHandler examples and adapt them to Python 3.
-
-- bpo-21649: Add RFC 7525 and Mozilla server side TLS links to SSL
- documentation.
-
-- bpo-31128: Allow the pydoc server to bind to arbitrary hostnames.
-
-- bpo-30803: Clarify doc on truth value testing. Original patch by Peter
- Thomassen.
-
-- bpo-30176: Add missing attribute related constants in curses
- documentation.
-
-- bpo-30052: the link targets for :func:`bytes` and :func:`bytearray` are
- now their respective type definitions, rather than the corresponding
- builtin function entries. Use :ref:`bytes <func-bytes>` and
- :ref:`bytearray <func-bytearray>` to reference the latter. In order to
- ensure this and future cross-reference updates are applied automatically,
- the daily documentation builds now disable the default output caching
- features in Sphinx.
-
-- bpo-26985: Add missing info of code object in inspect documentation.
-
-- bpo-19824: Improve the documentation for, and links to, template strings
- by emphasizing their utility for internationalization, and by clarifying
- some usage constraints. (See also: bpo-20314, bpo-12518)
-
-- bpo-28929: Link the documentation to its source file on GitHub.
-
-- bpo-25008: Document smtpd.py as effectively deprecated and add a pointer
- to aiosmtpd, a third-party asyncio-based replacement.
-
-- bpo-26355: Add canonical header link on each page to corresponding major
- version of the documentation. Patch by Matthias Bussonnier.
-
-- bpo-29349: Fix Python 2 syntax in code for building the documentation.
-
-- bpo-23722: The data model reference and the porting section in the 3.6
- What's New guide now cover the additional ``__classcell__`` handling
- needed for custom metaclasses to fully support :pep:`487` and
- zero-argument ``super()``.
-
-- bpo-28513: Documented command-line interface of zipfile.
-
-Tests
------
-
-- bpo-29639: test.support.HOST is now "localhost", a new HOSTv4 constant has
- been added for your ``127.0.0.1`` needs, similar to the existing HOSTv6
- constant.
-
-- bpo-31320: Silence traceback in test_ssl
-
-- bpo-31346: Prefer PROTOCOL_TLS_CLIENT and PROTOCOL_TLS_SERVER protocols
- for SSLContext.
-
-- bpo-25674: Remove sha256.tbs-internet.com ssl test
-
-- bpo-30715: Address ALPN callback changes for OpenSSL 1.1.0f. The latest
- version behaves like OpenSSL 1.0.2 and no longer aborts handshake.
-
-- bpo-30822: regrtest: Exclude tzdata from regrtest --all. When running the
- test suite using --use=all / -u all, exclude tzdata since it makes
- test_datetime too slow (15-20 min on some buildbots) which then times out
- on some buildbots. Fix also regrtest command line parser to allow passing
- -u extralargefile to run test_zipfile64.
-
-- bpo-30695: Add the `set_nomemory(start, stop)` and `remove_mem_hooks()`
- functions to the _testcapi module.
-
-- bpo-30357: test_thread: setUp() now uses support.threading_setup() and
- support.threading_cleanup() to wait until threads complete to avoid random
- side effects on following tests. Initial patch written by Grzegorz
- Grzywacz.
-
-- bpo-30197: Enhanced functions swap_attr() and swap_item() in the
- test.support module. They now work when delete replaced attribute or item
- inside the with statement. The old value of the attribute or item (or
- None if it doesn't exist) now will be assigned to the target of the "as"
- clause, if there is one.
-
-- bpo-24932: Use proper command line parsing in _testembed
-
-- bpo-28950: Disallow -j0 to be combined with -T/-l in regrtest command line
- arguments.
-
-- bpo-28683: Fix the tests that bind() a unix socket and raise
- PermissionError on Android for a non-root user.
-
-- bpo-26936: Fix the test_socket failures on Android - getservbyname(),
- getservbyport() and getaddrinfo() are broken on some Android API levels.
-
-- bpo-28666: Now test.support.rmtree is able to remove unwritable or
- unreadable directories.
-
-- bpo-23839: Various caches now are cleared before running every test file.
-
-- bpo-26944: Fix test_posix for Android where 'id -G' is entirely wrong or
- missing the effective gid.
-
-- bpo-28409: regrtest: fix the parser of command line arguments.
-
-- bpo-28217: Adds _testconsole module to test console input.
-
-- bpo-26939: Add the support.setswitchinterval() function to fix
- test_functools hanging on the Android armv7 qemu emulator.
-
-Build
------
-
-- bpo-31354: Allow --with-lto to be used on all builds, not just `make
- profile-opt`.
-
-- bpo-31370: Remove support for building --without-threads. This option is
- not really useful anymore in the 21st century. Removing lots of
- conditional paths allows us to simplify the code base, including in
- difficult to maintain low-level internal code.
-
-- bpo-31341: Per :pep:`11`, support for the IRIX operating system was
- removed.
-
-- bpo-30854: Fix compile error when compiling --without-threads. Patch by
- Masayuki Yamamoto.
-
-- bpo-30687: Locate msbuild.exe on Windows when building rather than
- vcvarsall.bat
-
-- bpo-20210: Support the *disabled* marker in Setup files. Extension modules
- listed after this marker are not built at all, neither by the Makefile nor
- by setup.py.
-
-- bpo-29941: Add ``--with-assertions`` configure flag to explicitly enable C
- ``assert()`` checks. Defaults to off. ``--with-pydebug`` implies
- ``--with-assertions``.
-
-- bpo-28787: Fix out-of-tree builds of Python when configured with
- ``--with--dtrace``.
-
-- bpo-29243: Prevent unnecessary rebuilding of Python during ``make test``,
- ``make install`` and some other make targets when configured with
- ``--enable-optimizations``.
-
-- bpo-23404: Don't regenerate generated files based on file modification
- time anymore: the action is now explicit. Replace ``make touch`` with
- ``make regen-all``.
-
-- bpo-29643: Fix ``--enable-optimization`` didn't work.
-
-- bpo-27593: sys.version and the platform module python_build(),
- python_branch(), and python_revision() functions now use git information
- rather than hg when building from a repo.
-
-- bpo-29572: Update Windows build and OS X installers to use OpenSSL 1.0.2k.
-
-- bpo-27659: Prohibit implicit C function declarations: use
- ``-Werror=implicit-function-declaration`` when possible (GCC and Clang,
- but it depends on the compiler version). Patch written by Chi Hsuan Yen.
-
-- bpo-29384: Remove old Be OS helper scripts.
-
-- bpo-26851: Set Android compilation and link flags.
-
-- bpo-28768: Fix implicit declaration of function _setmode. Patch by
- Masayuki Yamamoto
-
-- bpo-29080: Removes hard dependency on hg.exe from PCBuild/build.bat
-
-- bpo-23903: Added missed names to PC/python3.def.
-
-- bpo-28762: lockf() is available on Android API level 24, but the F_LOCK
- macro is not defined in android-ndk-r13.
-
-- bpo-28538: Fix the compilation error that occurs because if_nameindex() is
- available on Android API level 24, but the if_nameindex structure is not
- defined.
-
-- bpo-20211: Do not add the directory for installing C header files and the
- directory for installing object code libraries to the cross compilation
- search paths. Original patch by Thomas Petazzoni.
-
-- bpo-28849: Do not define sys.implementation._multiarch on Android.
-
-- bpo-10656: Fix out-of-tree building on AIX. Patch by Tristan Carel and
- Michael Haubenwallner.
-
-- bpo-26359: Rename --with-optimiations to --enable-optimizations.
-
-- bpo-28444: Fix missing extensions modules when cross compiling.
-
-- bpo-28208: Update Windows build and OS X installers to use SQLite 3.14.2.
-
-- bpo-28248: Update Windows build and OS X installers to use OpenSSL 1.0.2j.
-
-- bpo-21124: Fix building the _struct module on Cygwin by passing ``NULL``
- instead of ``&PyType_Type`` to PyVarObject_HEAD_INIT. Patch by Masayuki
- Yamamoto.
-
-- bpo-13756: Fix building extensions modules on Cygwin. Patch by Roumen
- Petrov, based on original patch by Jason Tishler.
-
-- bpo-21085: Add configure check for siginfo_t.si_band, which Cygwin does
- not provide. Patch by Masayuki Yamamoto with review and rebase by Erik
- Bray.
-
-- bpo-28258: Fixed build with Estonian locale (python-config and distclean
- targets in Makefile). Patch by Arfrever Frehtes Taifersar Arahesis.
-
-- bpo-26661: setup.py now detects system libffi with multiarch wrapper.
-
-- bpo-27979: A full copy of libffi is no longer bundled for use when
- building _ctypes on non-OSX UNIX platforms. An installed copy of libffi
- is now required when building _ctypes on such platforms.
-
-- bpo-15819: Remove redundant include search directory option for building
- outside the source tree.
-
-- bpo-28676: Prevent missing 'getentropy' declaration warning on macOS.
- Patch by Gareth Rees.
-
-Windows
--------
-
-- bpo-31392: Update Windows build to use OpenSSL 1.1.0f
-
-- bpo-30389: Adds detection of Visual Studio 2017 to distutils on Windows.
-
-- bpo-31358: zlib is no longer bundled in the CPython source, instead it is
- downloaded on demand just like bz2, lzma, OpenSSL, Tcl/Tk, and SQLite.
-
-- bpo-31340: Change to building with MSVC v141 (included with Visual Studio
- 2017)
-
-- bpo-30581: os.cpu_count() now returns the correct number of processors on
- Windows when the number of logical processors is greater than 64.
-
-- bpo-30916: Pre-build OpenSSL, Tcl and Tk and include the binaries in the
- build.
-
-- bpo-30731: Add a missing xmlns to python.manifest so that it matches the
- schema.
-
-- bpo-30291: Allow requiring 64-bit interpreters from py.exe using -64
- suffix. Contributed by Steve (Gadget) Barnes.
-
-- bpo-30362: Adds list options (-0, -0p) to py.exe launcher. Contributed by
- Steve Barnes.
-
-- bpo-23451: Fix socket deprecation warnings in socketmodule.c. Patch by
- Segev Finer.
-
-- bpo-30450: The build process on Windows no longer depends on Subversion,
- instead pulling external code from GitHub via a Python script. If Python
- 3.6 is not found on the system (via ``py -3.6``), NuGet is used to
- download a copy of 32-bit Python.
-
-- bpo-29579: Removes readme.txt from the installer.
-
-- bpo-25778: winreg does not truncate string correctly (Patch by Eryk Sun)
-
-- bpo-28896: Deprecate WindowsRegistryFinder and disable it by default
-
-- bpo-28522: Fixes mishandled buffer reallocation in getpathp.c
-
-- bpo-28402: Adds signed catalog files for stdlib on Windows.
-
-- bpo-28333: Enables Unicode for ps1/ps2 and input() prompts. (Patch by Eryk
- Sun)
-
-- bpo-28251: Improvements to help manuals on Windows.
-
-- bpo-28110: launcher.msi has different product codes between 32-bit and
- 64-bit
-
-- bpo-28161: Opening CON for write access fails
-
-- bpo-28162: WindowsConsoleIO readall() fails if first line starts with
- Ctrl+Z
-
-- bpo-28163: WindowsConsoleIO fileno() passes wrong flags to _open_osfhandle
-
-- bpo-28164: _PyIO_get_console_type fails for various paths
-
-- bpo-28137: Renames Windows path file to ._pth
-
-- bpo-28138: Windows ._pth file should allow import site
-
-IDLE
-----
-
-- bpo-31493: IDLE code context -- fix code update and font update timers.
- Canceling timers prevents a warning message when test_idle completes.
-
-- bpo-31488: IDLE - Update non-key options in former extension classes. When
- applying configdialog changes, call .reload for each feature class. Change
- ParenMatch so updated options affect existing instances attached to
- existing editor windows.
-
-- bpo-31477: IDLE - Improve rstrip entry in doc. Strip trailing whitespace
- strips more than blank spaces. Multiline string literals are not skipped.
-
-- bpo-31480: IDLE - make tests pass with zzdummy extension disabled by
- default.
-
-- bpo-31421: Document how IDLE runs tkinter programs. IDLE calls tcl/tk
- update in the background in order to make live interaction and
- experimentation with tkinter applications much easier.
-
-- bpo-31414: IDLE -- fix tk entry box tests by deleting first. Adding to an
- int entry is not the same as deleting and inserting because int('') will
- fail.
-
-- bpo-31051: Rearrange IDLE configdialog GenPage into Window, Editor, and
- Help sections.
-
-- bpo-30617: IDLE - Add docstrings and tests for outwin subclass of editor.
- Move some data and functions from the class to module level. Patch by
- Cheryl Sabella.
-
-- bpo-31287: IDLE - Do not modify tkinter.message in test_configdialog.
-
-- bpo-27099: Convert IDLE's built-in 'extensions' to regular features. About
- 10 IDLE features were implemented as supposedly optional extensions. Their
- different behavior could be confusing or worse for users and not good for
- maintenance. Hence the conversion. The main difference for users is that
- user configurable key bindings for builtin features are now handled
- uniformly. Now, editing a binding in a keyset only affects its value in
- the keyset. All bindings are defined together in the system-specific
- default keysets in config-extensions.def. All custom keysets are saved as
- a whole in config-extension.cfg. All take effect as soon as one clicks
- Apply or Ok. The affected events are '<<force-open-completions>>',
- '<<expand-word>>', '<<force-open-calltip>>', '<<flash-paren>>',
- '<<format-paragraph>>', '<<run-module>>', '<<check-module>>', and
- '<<zoom-height>>'. Any (global) customizations made before 3.6.3 will not
- affect their keyset-specific customization after 3.6.3. and vice versa.
- Initial patch by Charles Wohlganger.
-
-- bpo-31206: IDLE: Factor HighPage(Frame) class from ConfigDialog. Patch by
- Cheryl Sabella.
-
-- bpo-31001: Add tests for configdialog highlight tab. Patch by Cheryl
- Sabella.
-
-- bpo-31205: IDLE: Factor KeysPage(Frame) class from ConfigDialog. The
- slightly modified tests continue to pass. Patch by Cheryl Sabella.
-
-- bpo-31130: IDLE -- stop leaks in test_configdialog. Initial patch by
- Victor Stinner.
-
-- bpo-31002: Add tests for configdialog keys tab. Patch by Cheryl Sabella.
-
-- bpo-19903: IDLE: Calltips use `inspect.signature` instead of
- `inspect.getfullargspec`. This improves calltips for builtins converted to
- use Argument Clinic. Patch by Louie Lu.
-
-- bpo-31083: IDLE - Add an outline of a TabPage class in configdialog.
- Update existing classes to match outline. Initial patch by Cheryl Sabella.
-
-- bpo-31050: Factor GenPage(Frame) class from ConfigDialog. The slightly
- modified tests continue to pass. Patch by Cheryl Sabella.
-
-- bpo-31004: IDLE - Factor FontPage(Frame) class from ConfigDialog. Slightly
- modified tests continue to pass. Fix General tests. Patch mostly by Cheryl
- Sabella.
-
-- bpo-30781: IDLE - Use ttk widgets in ConfigDialog. Patches by Terry Jan
- Reedy and Cheryl Sabella.
-
-- bpo-31060: IDLE - Finish rearranging methods of ConfigDialog Grouping
- methods pertaining to each tab and the buttons will aid writing tests and
- improving the tabs and will enable splitting the groups into classes.
-
-- bpo-30853: IDLE -- Factor a VarTrace class out of ConfigDialog. Instance
- tracers manages pairs consisting of a tk variable and a callback function.
- When tracing is turned on, setting the variable calls the function. Test
- coverage for the new class is 100%.
-
-- bpo-31003: IDLE: Add more tests for General tab.
-
-- bpo-30993: IDLE - Improve configdialog font page and tests. In
- configdialog: Document causal pathways in create_font_tab docstring.
- Simplify some attribute names. Move set_samples calls to var_changed_font
- (idea from Cheryl Sabella). Move related functions to positions after the
- create widgets function. In test_configdialog: Fix test_font_set so not
- order dependent. Fix renamed test_indent_scale so it tests the widget.
- Adjust tests for movement of set_samples call. Add tests for load
- functions. Put all font tests in one class and tab indent tests in
- another. Except for two lines, these tests completely cover the related
- functions.
-
-- bpo-30981: IDLE -- Add more configdialog font page tests.
-
-- bpo-28523: IDLE: replace 'colour' with 'color' in configdialog.
-
-- bpo-30917: Add tests for idlelib.config.IdleConf. Increase coverage from
- 46% to 96%. Patch by Louie Lu.
-
-- bpo-30934: Document coverage details for idlelib tests. Add section to
- idlelib/idle-test/README.txt. Include check that branches are taken both
- ways. Exclude IDLE-specific code that does not run during unit tests.
-
-- bpo-30913: IDLE: Document ConfigDialog tk Vars, methods, and widgets in
- docstrings This will facilitate improving the dialog and splitting up the
- class. Original patch by Cheryl Sabella.
-
-- bpo-30899: IDLE: Add tests for ConfigParser subclasses in config. Patch by
- Louie Lu.
-
-- bpo-30881: IDLE: Add docstrings to browser.py. Patch by Cheryl Sabella.
-
-- bpo-30851: IDLE: Remove unused variables in configdialog. One is a
- duplicate, one is set but cannot be altered by users. Patch by Cheryl
- Sabella.
-
-- bpo-30870: IDLE: In Settings dialog, select font with Up, Down keys as
- well as mouse. Initial patch by Louie Lu.
-
-- bpo-8231: IDLE: call config.IdleConf.GetUserCfgDir only once.
-
-- bpo-30779: IDLE: Factor ConfigChanges class from configdialog, put in
- config; test. * In config, put dump test code in a function; run it and
- unittest in 'if __name__ == '__main__'. * Add class config.ConfigChanges
- based on changes_class_v4.py on bpo issue. * Add class
- test_config.ChangesTest, partly using configdialog_tests_v1.py. * Revise
- configdialog to use ConfigChanges; see tracker msg297804. * Revise
- test_configdialog to match configdialog changes. * Remove configdialog
- functions unused or moved to ConfigChanges. Cheryl Sabella contributed
- parts of the patch.
-
-- bpo-30777: IDLE: configdialog - Add docstrings and fix comments. Patch by
- Cheryl Sabella.
-
-- bpo-30495: IDLE: Improve textview with docstrings, PEP8 names, and more
- tests. Patch by Cheryl Sabella.
-
-- bpo-30723: IDLE: Make several improvements to parenmatch. Add 'parens'
- style to highlight both opener and closer. Make 'default' style, which is
- not default, a synonym for 'opener'. Make time-delay work the same with
- all styles. Add help for config dialog extensions tab, including help for
- parenmatch. Add new tests. Original patch by Charles Wohlganger.
-
-- bpo-30674: IDLE: add docstrings to grep module. Patch by Cheryl Sabella
-
-- bpo-21519: IDLE's basic custom key entry dialog now detects duplicates
- properly. Original patch by Saimadhav Heblikar.
-
-- bpo-29910: IDLE no longer deletes a character after commenting out a
- region by a key shortcut. Add ``return 'break'`` for this and other
- potential conflicts between IDLE and default key bindings.
-
-- bpo-30728: Review and change idlelib.configdialog names. Lowercase method
- and attribute names. Replace 'colour' with 'color', expand overly cryptic
- names, delete unneeded underscores. Replace ``import *`` with specific
- imports. Patches by Cheryl Sabella.
-
-- bpo-6739: IDLE: Verify user-entered key sequences by trying to bind them
- with tk. Add tests for all 3 validation functions. Original patch by G
- Polo. Tests added by Cheryl Sabella.
-
-- bpo-15786: Fix several problems with IDLE's autocompletion box. The
- following should now work: clicking on selection box items; using the
- scrollbar; selecting an item by hitting Return. Hangs on MacOSX should no
- longer happen. Patch by Louie Lu.
-
-- bpo-25514: Add doc subsubsection about IDLE failure to start. Popup
- no-connection message directs users to this section.
-
-- bpo-30642: Fix reference leaks in IDLE tests. Patches by Louie Lu and
- Terry Jan Reedy.
-
-- bpo-30495: Add docstrings for textview.py and use PEP8 names. Patches by
- Cheryl Sabella and Terry Jan Reedy.
-
-- bpo-30290: Help-about: use pep8 names and add tests. Increase coverage to
- 100%. Patches by Louie Lu, Cheryl Sabella, and Terry Jan Reedy.
-
-- bpo-30303: Add _utest option to textview; add new tests. Increase coverage
- to 100%. Patches by Louie Lu and Terry Jan Reedy.
-
-- bpo-29071: IDLE colors f-string prefixes (but not invalid ur prefixes).
-
-- bpo-28572: Add 10% to coverage of IDLE's test_configdialog. Update and
- augment description of the configuration system.
-
-Tools/Demos
------------
-
-- bpo-30983: gdb integration commands (py-bt, etc.) work on optimized shared
- builds now, too. :pep:`523` introduced _PyEval_EvalFrameDefault which
- inlines PyEval_EvalFrameEx on non-debug shared builds. This broke the
- ability to use py-bt, py-up, and a few other Python-specific gdb
- integrations. The problem is fixed by only looking for
- _PyEval_EvalFrameDefault frames in python-gdb.py. Original patch by Bruno
- "Polaco" Penteado.
-
-- bpo-29748: Added the slice index converter in Argument Clinic.
-
-- bpo-24037: Argument Clinic now uses the converter `bool(accept={int})`
- rather than `int` for semantical booleans. This avoids repeating the
- default value for Python and C and will help in converting to `bool` in
- future.
-
-- bpo-29367: python-gdb.py now supports also ``method-wrapper``
- (``wrapperobject``) objects.
-
-- bpo-28023: Fix python-gdb.py didn't support new dict implementation.
-
-- bpo-15369: The pybench and pystone microbenchmark have been removed from
- Tools. Please use the new Python benchmark suite
- https://github.com/python/performance which is more reliable and includes
- a portable version of pybench working on Python 2 and Python 3.
-
-- bpo-28102: The zipfile module CLI now prints usage to stderr. Patch by
- Stephen J. Turnbull.
-
-C API
------
-
-- bpo-31338: Added the ``Py_UNREACHABLE()`` macro for code paths which are
- never expected to be reached. This and a few other useful macros are now
- documented in the C API manual.
-
-- bpo-30832: Remove own implementation for thread-local storage. CPython has
- provided the own implementation for thread-local storage (TLS) on
- Python/thread.c, it's used in the case which a platform has not supplied
- native TLS. However, currently all supported platforms (Windows and
- pthreads) have provided native TLS and defined the Py_HAVE_NATIVE_TLS
- macro with unconditional in any case.
-
-- bpo-30708: PyUnicode_AsWideCharString() now raises a ValueError if the
- second argument is NULL and the wchar_t\* string contains null characters.
-
-- bpo-16500: Deprecate PyOS_AfterFork() and add PyOS_BeforeFork(),
- PyOS_AfterFork_Parent() and PyOS_AfterFork_Child().
-
-- bpo-6532: The type of results of PyThread_start_new_thread() and
- PyThread_get_thread_ident(), and the id parameter of
- PyThreadState_SetAsyncExc() changed from "long" to "unsigned long".
-
-- bpo-27867: Function PySlice_GetIndicesEx() is deprecated and replaced with
- a macro if Py_LIMITED_API is not set or set to the value between
- 0x03050400 and 0x03060000 (not including) or 0x03060100 or higher. Added
- functions PySlice_Unpack() and PySlice_AdjustIndices().
-
-- bpo-29083: Fixed the declaration of some public API functions.
- PyArg_VaParse() and PyArg_VaParseTupleAndKeywords() were not available in
- limited API. PyArg_ValidateKeywordArguments(), PyArg_UnpackTuple() and
- Py_BuildValue() were not available in limited API of version < 3.3 when
- PY_SSIZE_T_CLEAN is defined.
-
-- bpo-28769: The result of PyUnicode_AsUTF8AndSize() and PyUnicode_AsUTF8()
- is now of type ``const char *`` rather of ``char *``.
-
-- bpo-29058: All stable API extensions added after Python 3.2 are now
- available only when Py_LIMITED_API is set to the PY_VERSION_HEX value of
- the minimum Python version supporting this API.
-
-- bpo-28822: The index parameters *start* and *end* of PyUnicode_FindChar()
- are now adjusted to behave like ``str[start:end]``.
-
-- bpo-28808: PyUnicode_CompareWithASCIIString() now never raises exceptions.
-
-- bpo-28761: The fields name and doc of structures PyMemberDef, PyGetSetDef,
- PyStructSequence_Field, PyStructSequence_Desc, and wrapperbase are now of
- type ``const char *`` rather of ``char *``.
-
-- bpo-28748: Private variable _Py_PackageContext is now of type ``const char
- *`` rather of ``char *``.
-
-- bpo-19569: Compiler warnings are now emitted if use most of deprecated
- functions.
-
-- bpo-28426: Deprecated undocumented functions PyUnicode_AsEncodedObject(),
- PyUnicode_AsDecodedObject(), PyUnicode_AsDecodedUnicode() and
- PyUnicode_AsEncodedUnicode().
-
-
-What's New in Python 3.6.6 final?
-=================================
-
-*Release date: 2018-06-27*
-
-There were no new changes in version 3.6.6.
-
-
-
-What's New in Python 3.6.6 release candidate 1?
-===============================================
-
-*Release date: 2018-06-11*
-
-Core and Builtins
------------------
-
-- bpo-33786: Fix asynchronous generators to handle GeneratorExit in athrow()
- correctly
-
-- bpo-30654: Fixed reset of the SIGINT handler to SIG_DFL on interpreter
- shutdown even when there was a custom handler set previously. Patch by
- Philipp Kerling.
-
-- bpo-33622: Fixed a leak when the garbage collector fails to add an object
- with the ``__del__`` method or referenced by it into the
- :data:`gc.garbage` list. :c:func:`PyGC_Collect` can now be called when an
- exception is set and preserves it.
-
-- bpo-31849: Fix signed/unsigned comparison warning in pyhash.c.
-
-- bpo-33391: Fix a leak in set_symmetric_difference().
-
-- bpo-28055: Fix unaligned accesses in siphash24(). Patch by Rolf Eike Beer.
-
-- bpo-33231: Fix potential memory leak in ``normalizestring()``.
-
-- bpo-29922: Improved error messages in 'async with' when ``__aenter__()``
- or ``__aexit__()`` return non-awaitable object.
-
-- bpo-33199: Fix ``ma_version_tag`` in dict implementation is uninitialized
- when copying from key-sharing dict.
-
-- bpo-33041: Fixed jumping when the function contains an ``async for`` loop.
-
-- bpo-32282: Fix an unnecessary ifdef in the include of VersionHelpers.h in
- socketmodule on Windows.
-
-- bpo-21983: Fix a crash in `ctypes.cast()` in case the type argument is a
- ctypes structured data type. Patch by Eryk Sun and Oren Milman.
-
-Library
--------
-
-- bpo-30167: Prevent site.main() exception if PYTHONSTARTUP is set. Patch by
- Steve Weber.
-
-- bpo-33812: Datetime instance d with non-None tzinfo, but with
- d.tzinfo.utcoffset(d) returning None is now treated as naive by the
- astimezone() method.
-
-- bpo-30805: Avoid race condition with debug logging
-
-- bpo-33767: The concatenation (``+``) and repetition (``*``) sequence
- operations now raise :exc:`TypeError` instead of :exc:`SystemError` when
- performed on :class:`mmap.mmap` objects. Patch by Zackery Spytz.
-
-- bpo-32684: Fix gather to propagate cancellation of itself even with
- return_exceptions.
-
-- bpo-33674: Fix a race condition in SSLProtocol.connection_made() of
- asyncio.sslproto: start immediately the handshake instead of using
- call_soon(). Previously, data_received() could be called before the
- handshake started, causing the handshake to hang or fail.
-
-- bpo-31647: Fixed bug where calling write_eof() on a
- _SelectorSocketTransport after it's already closed raises AttributeError.
-
-- bpo-33672: Fix Task.__repr__ crash with Cython's bogus coroutines
-
-- bpo-33469: Fix RuntimeError after closing loop that used run_in_executor
-
-- bpo-11874: Use a better regex when breaking usage into wrappable parts.
- Avoids bogus assertion errors from custom metavar strings.
-
-- bpo-30877: Fixed a bug in the Python implementation of the JSON decoder
- that prevented the cache of parsed strings from clearing after finishing
- the decoding. Based on patch by c-fos.
-
-- bpo-33548: tempfile._candidate_tempdir_list should consider common TEMP
- locations
-
-- bpo-33542: Prevent ``uuid.get_node`` from using a DUID instead of a MAC on
- Windows. Patch by Zvi Effron
-
-- bpo-26819: Fix race condition with `ReadTransport.resume_reading` in
- Windows proactor event loop.
-
-- bpo-28556: Minor fixes in typing module: add annotations to
- ``NamedTuple.__new__``, pass ``*args`` and ``**kwds`` in
- ``Generic.__new__``. Original PRs by Paulius Šarka and Chad Dombrova.
-
-- bpo-20087: Updated alias mapping with glibc 2.27 supported locales.
-
-- bpo-33422: Fix trailing quotation marks getting deleted when looking up
- byte/string literals on pydoc. Patch by Andrés Delfino.
-
-- bpo-33197: Update error message when constructing invalid
- inspect.Parameters Patch by Dong-hee Na.
-
-- bpo-33383: Fixed crash in the get() method of the :mod:`dbm.ndbm` database
- object when it is called with a single argument.
-
-- bpo-33329: Fix multiprocessing regression on newer glibcs
-
-- bpo-991266: Fix quoting of the ``Comment`` attribute of
- :class:`http.cookies.SimpleCookie`.
-
-- bpo-33131: Upgrade bundled version of pip to 10.0.1.
-
-- bpo-33308: Fixed a crash in the :mod:`parser` module when converting an ST
- object to a tree of tuples or lists with ``line_info=False`` and
- ``col_info=True``.
-
-- bpo-33263: Fix FD leak in `_SelectorSocketTransport` Patch by Vlad
- Starostin.
-
-- bpo-33256: Fix display of ``<module>`` call in the html produced by
- ``cgitb.html()``. Patch by Stéphane Blondon.
-
-- bpo-33203: ``random.Random.choice()`` now raises ``IndexError`` for empty
- sequences consistently even when called from subclasses without a
- ``getrandbits()`` implementation.
-
-- bpo-33224: Update difflib.mdiff() for :pep:`479`. Convert an uncaught
- StopIteration in a generator into a return-statement.
-
-- bpo-33209: End framing at the end of C implementation of
- :func:`pickle.Pickler.dump`.
-
-- bpo-32861: The urllib.robotparser's ``__str__`` representation now
- includes wildcard entries and the "Crawl-delay" and "Request-rate" fields.
- Patch by Michael Lazar.
-
-- bpo-33096: Allow ttk.Treeview.insert to insert iid that has a false
- boolean value. Note iid=0 and iid=False would be same. Patch by Garvit
- Khatri.
-
-- bpo-33127: The ssl module now compiles with LibreSSL 2.7.1.
-
-- bpo-33021: Release the GIL during fstat() calls, avoiding hang of all
- threads when calling mmap.mmap(), os.urandom(), and random.seed(). Patch
- by Nir Soffer.
-
-- bpo-27683: Fix a regression in :mod:`ipaddress` that result of
- :meth:`hosts` is empty when the network is constructed by a tuple
- containing an integer mask and only 1 bit left for addresses.
-
-- bpo-32844: Fix wrong redirection of a low descriptor (0 or 1) to stderr in
- subprocess if another low descriptor is closed.
-
-- bpo-31908: Fix output of cover files for ``trace`` module command-line
- tool. Previously emitted cover files only when ``--missing`` option was
- used. Patch by Michael Selik.
-
-- bpo-31457: If nested log adapters are used, the inner ``process()``
- methods are no longer omitted.
-
-- bpo-16865: Support arrays >=2GiB in :mod:`ctypes`. Patch by Segev Finer.
-
-- bpo-31238: pydoc: the stop() method of the private ServerThread class now
- waits until DocServer.serve_until_quit() completes and then explicitly
- sets its docserver attribute to None to break a reference cycle.
-
-Documentation
--------------
-
-- bpo-33503: Fix broken pypi link
-
-- bpo-33421: Add missing documentation for ``typing.AsyncContextManager``.
-
-- bpo-33378: Add Korean language switcher for https://docs.python.org/3/
-
-- bpo-33276: Clarify that the ``__path__`` attribute on modules cannot be
- just any value.
-
-- bpo-33201: Modernize documentation for writing C extension types.
-
-- bpo-33195: Deprecate ``Py_UNICODE`` usage in ``c-api/arg`` document.
- ``Py_UNICODE`` related APIs are deprecated since Python 3.3, but it is
- missed in the document.
-
-- bpo-33126: Document PyBuffer_ToContiguous().
-
-- bpo-27212: Modify documentation for the :func:`islice` recipe to consume
- initial values up to the start index.
-
-- bpo-28247: Update :mod:`zipapp` documentation to describe how to make
- standalone applications.
-
-- bpo-18802: Documentation changes for ipaddress. Patch by Jon Foster and
- Berker Peksag.
-
-- bpo-27428: Update documentation to clarify that ``WindowsRegistryFinder``
- implements ``MetaPathFinder``. (Patch by Himanshu Lakhara)
-
-- bpo-8243: Add a note about curses.addch and curses.addstr exception
- behavior when writing outside a window, or pad.
-
-- bpo-31432: Clarify meaning of CERT_NONE, CERT_OPTIONAL, and CERT_REQUIRED
- flags for ssl.SSLContext.verify_mode.
-
-Tests
------
-
-- bpo-33655: Ignore test_posix_fallocate failures on BSD platforms that
- might be due to running on ZFS.
-
-- bpo-19417: Add test_bdb.py.
-
-Build
------
-
-- bpo-5755: Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from
- ``OPT``. This option emitted annoying warnings when building extension
- modules written in C++.
-
-- bpo-33614: Ensures module definition files for the stable ABI on Windows
- are correctly regenerated.
-
-- bpo-33522: Enable CI builds on Visual Studio Team Services at
- https://python.visualstudio.com/cpython
-
-- bpo-33012: Add ``-Wno-cast-function-type`` for gcc 8 for silencing
- warnings about function casts like casting to PyCFunction in method
- definition lists.
-
-- bpo-33394: Enable the verbose build for extension modules, when GNU make
- is passed macros on the command line.
-
-Windows
--------
-
-- bpo-33184: Update Windows installer to OpenSSL 1.0.2o.
-
-macOS
------
-
-- bpo-33184: Update macOS installer build to use OpenSSL 1.0.2o.
-
-IDLE
-----
-
-- bpo-33656: On Windows, add API call saying that tk scales for DPI. On
- Windows 8.1+ or 10, with DPI compatibility properties of the Python binary
- unchanged, and a monitor resolution greater than 96 DPI, this should make
- text and lines sharper. It should otherwise have no effect.
-
-- bpo-33768: Clicking on a context line moves that line to the top of the
- editor window.
-
-- bpo-33763: IDLE: Use read-only text widget for code context instead of
- label widget.
-
-- bpo-33664: Scroll IDLE editor text by lines. Previously, the mouse wheel
- and scrollbar slider moved text by a fixed number of pixels, resulting in
- partial lines at the top of the editor box. The change also applies to
- the shell and grep output windows, but not to read-only text views.
-
-- bpo-33679: Enable theme-specific color configuration for Code Context. Use
- the Highlights tab to see the setting for built-in themes or add settings
- to custom themes.
-
-- bpo-33642: Display up to maxlines non-blank lines for Code Context. If
- there is no current context, show a single blank line.
-
-- bpo-33628: IDLE: Cleanup codecontext.py and its test.
-
-- bpo-33564: IDLE's code context now recognizes async as a block opener.
-
-- bpo-29706: IDLE now colors async and await as keywords in 3.6. They become
- full keywords in 3.7.
-
-- bpo-21474: Update word/identifier definition from ascii to unicode. In
- text and entry boxes, this affects selection by double-click, movement
- left/right by control-left/right, and deletion left/right by
- control-BACKSPACE/DEL.
-
-- bpo-33204: IDLE: consistently color invalid string prefixes. A 'u' string
- prefix cannot be paired with either 'r' or 'f'. Consistently color as much
- of the prefix, starting at the right, as is valid. Revise and extend
- colorizer test.
-
-- bpo-32831: Add docstrings and tests for codecontext.
-
-Tools/Demos
------------
-
-- bpo-33189: :program:`pygettext.py` now recognizes only literal strings as
- docstrings and translatable strings, and rejects bytes literals and
- f-string expressions.
-
-- bpo-31920: Fixed handling directories as arguments in the ``pygettext``
- script. Based on patch by Oleg Krasnikov.
-
-- bpo-29673: Fix pystackv and pystack gdbinit macros.
-
-- bpo-32885: Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disable
- automatic backup creation (files with ``~`` suffix).
-
-- bpo-31583: Fix 2to3 for using with --add-suffix option but without
- --output-dir option for relative path to files in current directory.
-
-C API
------
-
-- bpo-32374: Document that m_traverse for multi-phase initialized modules
- can be called with m_state=NULL, and add a sanity check
-
-
-What's New in Python 3.6.5 final?
-=================================
-
-*Release date: 2018-03-28*
-
-Tests
------
-
-- bpo-32872: Avoid regrtest compatibility issue with namespace packages.
-
-Build
------
-
-- bpo-33163: Upgrade pip to 9.0.3 and setuptools to v39.0.1.
-
-
-What's New in Python 3.6.5 release candidate 1?
-===============================================
-
-*Release date: 2018-03-13*
-
-Security
---------
-
-- bpo-33001: Minimal fix to prevent buffer overrun in os.symlink on Windows
-
-- bpo-32981: Regexes in difflib and poplib were vulnerable to catastrophic
- backtracking. These regexes formed potential DOS vectors (REDOS). They
- have been refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch
- by Jamie Davis.
-
-Core and Builtins
------------------
-
-- bpo-33026: Fixed jumping out of "with" block by setting f_lineno.
-
-- bpo-17288: Prevent jumps from 'return' and 'exception' trace events.
-
-- bpo-32889: Update Valgrind suppression list to account for the rename of
- ``Py_ADDRESS_IN_RANG`` to ``address_in_range``.
-
-- bpo-32650: Pdb and other debuggers dependent on bdb.py will correctly step
- over (next command) native coroutines. Patch by Pablo Galindo.
-
-- bpo-32685: Improve suggestion when the Python 2 form of print statement is
- either present on the same line as the header of a compound statement or
- else terminated by a semi-colon instead of a newline. Patch by Nitish
- Chandra.
-
-- bpo-32583: Fix possible crashing in builtin Unicode decoders caused by
- write out-of-bound errors when using customized decode error handlers.
-
-- bpo-26163: Improved frozenset() hash to create more distinct hash values
- when faced with datasets containing many similar values.
-
-- bpo-27169: The ``__debug__`` constant is now optimized out at compile
- time. This fixes also bpo-22091.
-
-- bpo-32329: ``sys.flags.hash_randomization`` is now properly set to 0 when
- hash randomization is turned off by ``PYTHONHASHSEED=0``.
-
-- bpo-30416: The optimizer is now protected from spending much time doing
- complex calculations and consuming much memory for creating large
- constants in constant folding.
-
-- bpo-18533: ``repr()`` on a dict containing its own ``values()`` or
- ``items()`` no longer raises ``RecursionError``; OrderedDict similarly.
- Instead, use ``...``, as for other recursive structures. Patch by Ben
- North.
-
-- bpo-32028: Leading whitespace is now correctly ignored when generating
- suggestions for converting Py2 print statements to Py3 builtin print
- function calls. Patch by Sanyam Khurana.
-
-- bpo-32137: The repr of deeply nested dict now raises a RecursionError
- instead of crashing due to a stack overflow.
-
-Library
--------
-
-- bpo-33064: lib2to3 now properly supports trailing commas after ``*args``
- and ``**kwargs`` in function signatures.
-
-- bpo-31804: Avoid failing in multiprocessing.Process if the standard
- streams are closed or None at exit.
-
-- bpo-33037: Skip sending/receiving data after SSL transport closing.
-
-- bpo-30353: Fix ctypes pass-by-value for structs on 64-bit Cygwin/MinGW.
-
-- bpo-33009: Fix inspect.signature() for single-parameter partialmethods.
-
-- bpo-32969: Expose several missing constants in zlib and fix corresponding
- documentation.
-
-- bpo-32713: Fixed tarfile.itn handling of out-of-bounds float values. Patch
- by Joffrey Fuhrer.
-
-- bpo-30622: The ssl module now detects missing NPN support in LibreSSL.
-
-- bpo-32922: dbm.open() now encodes filename with the filesystem encoding
- rather than default encoding.
-
-- bpo-32859: In ``os.dup2``, don't check every call whether the ``dup3``
- syscall exists or not.
-
-- bpo-21060: Rewrite confusing message from setup.py upload from "No dist
- file created in earlier command" to the more helpful "Must create and
- upload files in one command".
-
-- bpo-32857: In :mod:`tkinter`, ``after_cancel(None)`` now raises a
- :exc:`ValueError` instead of canceling the first scheduled function.
- Patch by Cheryl Sabella.
-
-- bpo-32852: Make sure sys.argv remains as a list when running trace.
-
-- bpo-32841: Fixed `asyncio.Condition` issue which silently ignored
- cancellation after notifying and cancelling a conditional lock. Patch by
- Bar Harel.
-
-- bpo-31787: Fixed refleaks of ``__init__()`` methods in various modules.
- (Contributed by Oren Milman)
-
-- bpo-30157: Fixed guessing quote and delimiter in csv.Sniffer.sniff() when
- only the last field is quoted. Patch by Jake Davis.
-
-- bpo-32394: socket: Remove TCP_FASTOPEN, TCP_KEEPCNT flags on older version
- Windows during run-time.
-
-- bpo-32777: Fix a rare but potential pre-exec child process deadlock in
- subprocess on POSIX systems when marking file descriptors inheritable on
- exec in the child process. This bug appears to have been introduced in
- 3.4.
-
-- bpo-32647: The ctypes module used to depend on indirect linking for
- dlopen. The shared extension is now explicitly linked against libdl on
- platforms with dl.
-
-- bpo-32734: Fixed ``asyncio.Lock()`` safety issue which allowed acquiring
- and locking the same lock multiple times, without it being free. Patch by
- Bar Harel.
-
-- bpo-32727: Do not include name field in SMTP envelope from address. Patch
- by Stéphane Wirtel
-
-- bpo-27931: Fix email address header parsing error when the username is an
- empty quoted string. Patch by Xiang Zhang.
-
-- bpo-32304: distutils' upload command no longer corrupts tar files ending
- with a CR byte, and no longer tries to convert CR to CRLF in any of the
- upload text fields.
-
-- bpo-32502: uuid.uuid1 no longer raises an exception if a 64-bit hardware
- address is encountered.
-
-- bpo-31848: Fix the error handling in Aifc_read.initfp() when the SSND
- chunk is not found. Patch by Zackery Spytz.
-
-- bpo-32555: On FreeBSD and Solaris, os.strerror() now always decode the
- byte string from the current locale encoding, rather than using
- ASCII/surrogateescape in some cases.
-
-- bpo-32521: The nis module is now compatible with new libnsl and headers
- location.
-
-- bpo-32473: Improve ABCMeta._dump_registry() output readability
-
-- bpo-32521: glibc has removed Sun RPC. Use replacement libtirpc headers and
- library in nis module.
-
-- bpo-32228: Ensure that ``truncate()`` preserves the file position (as
- reported by ``tell()``) after writes longer than the buffer size.
-
-- bpo-26133: Don't unsubscribe signals in asyncio UNIX event loop on
- interpreter shutdown.
-
-- bpo-32185: The SSL module no longer sends IP addresses in SNI TLS
- extension on platforms with OpenSSL 1.0.2+ or inet_pton.
-
-- bpo-32323: :func:`urllib.parse.urlsplit()` does not convert zone-id
- (scope) to lower case for scoped IPv6 addresses in hostnames now.
-
-- bpo-32302: Fix bdist_wininst of distutils for CRT v142: it binary
- compatible with CRT v140.
-
-- bpo-32255: A single empty field is now always quoted when written into a
- CSV file. This allows to distinguish an empty row from a row consisting of
- a single empty field. Patch by Licht Takeuchi.
-
-- bpo-32277: Raise ``NotImplementedError`` instead of ``SystemError`` on
- platforms where ``chmod(..., follow_symlinks=False)`` is not supported.
- Patch by Anthony Sottile.
-
-- bpo-32199: The getnode() ip getter now uses 'ip link' instead of 'ip link
- list'.
-
-- bpo-27456: Ensure TCP_NODELAY is set on Linux. Tests by Victor Stinner.
-
-- bpo-31900: The :func:`locale.localeconv` function now sets temporarily the
- ``LC_CTYPE`` locale to the ``LC_NUMERIC`` locale to decode
- ``decimal_point`` and ``thousands_sep`` byte strings if they are non-ASCII
- or longer than 1 byte, and the ``LC_NUMERIC`` locale is different than the
- ``LC_CTYPE`` locale. This temporary change affects other threads. Same
- change for the :meth:`str.format` method when formatting a number
- (:class:`int`, :class:`float`, :class:`float` and subclasses) with the
- ``n`` type (ex: ``'{:n}'.format(1234)``).
-
-- bpo-31802: Importing native path module (``posixpath``, ``ntpath``) now
- works even if the ``os`` module still is not imported.
-
-Documentation
--------------
-
-- bpo-17232: Clarify docs for -O and -OO. Patch by Terry Reedy.
-
-- bpo-32800: Update link to w3c doc for xml default namespaces.
-
-- bpo-8722: Document :meth:`__getattr__` behavior when property :meth:`get`
- method raises :exc:`AttributeError`.
-
-- bpo-32614: Modify RE examples in documentation to use raw strings to
- prevent :exc:`DeprecationWarning` and add text to REGEX HOWTO to highlight
- the deprecation.
-
-- bpo-31972: Improve docstrings for `pathlib.PurePath` subclasses.
-
-- bpo-17799: Explain real behaviour of sys.settrace and sys.setprofile and
- their C-API counterparts regarding which type of events are received in
- each function. Patch by Pablo Galindo Salgado.
-
-Tests
------
-
-- bpo-32517: Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport
- of ``KqueueSelector`` loop was not being closed.
-
-- bpo-32721: Fix test_hashlib to not fail if the _md5 module is not built.
-
-- bpo-32252: Fix faulthandler_suppress_crash_report() used to prevent core
- dump files when testing crashes. getrlimit() returns zero on success.
-
-- bpo-31518: Debian Unstable has disabled TLS 1.0 and 1.1 for
- SSLv23_METHOD(). Change TLS/SSL protocol of some tests to PROTOCOL_TLS or
- PROTOCOL_TLSv1_2 to make them pass on Debian.
-
-Build
------
-
-- bpo-32635: Fix segfault of the crypt module when libxcrypt is provided
- instead of libcrypt at the system.
-
-Windows
--------
-
-- bpo-33016: Fix potential use of uninitialized memory in
- nt._getfinalpathname
-
-- bpo-32903: Fix a memory leak in os.chdir() on Windows if the current
- directory is set to a UNC path.
-
-- bpo-31966: Fixed WindowsConsoleIO.write() for writing empty data.
-
-- bpo-32409: Ensures activate.bat can handle Unicode contents.
-
-- bpo-32457: Improves handling of denormalized executable path when
- launching Python.
-
-- bpo-32370: Use the correct encoding for ipconfig output in the uuid
- module. Patch by Segev Finer.
-
-- bpo-29248: Fix :func:`os.readlink` on Windows, which was mistakenly
- treating the ``PrintNameOffset`` field of the reparse data buffer as a
- number of characters instead of bytes. Patch by Craig Holmquist and SSE4.
-
-- bpo-32588: Create standalone _distutils_findvs module.
-
-macOS
------
-
-- bpo-32726: Provide an additional, more modern macOS installer variant that
- supports macOS 10.9+ systems in 64-bit mode only. Upgrade the supplied
- third-party libraries to OpenSSL 1.0.2n, XZ 5.2.3, and SQLite 3.22.0. The
- 10.9+ installer now links with and supplies its own copy of Tcl/Tk 8.6.8.
-
-IDLE
-----
-
-- bpo-32984: Set ``__file__`` while running a startup file. Like Python,
- IDLE optionally runs one startup file in the Shell window before
- presenting the first interactive input prompt. For IDLE, ``-s`` runs a
- file named in environmental variable :envvar:`IDLESTARTUP` or
- :envvar:`PYTHONSTARTUP`; ``-r file`` runs ``file``. Python sets
- ``__file__`` to the startup file name before running the file and unsets
- it before the first prompt. IDLE now does the same when run normally,
- without the ``-n`` option.
-
-- bpo-32940: Simplify and rename StringTranslatePseudoMapping in pyparse.
-
-- bpo-32916: Change ``str`` to ``code`` in pyparse.
-
-- bpo-32905: Remove unused code in pyparse module.
-
-- bpo-32874: Add tests for pyparse.
-
-- bpo-32837: Using the system and place-dependent default encoding for
- open() is a bad idea for IDLE's system and location-independent files.
-
-- bpo-32826: Add "encoding=utf-8" to open() in IDLE's test_help_about. GUI
- test test_file_buttons() only looks at initial ascii-only lines, but
- failed on systems where open() defaults to 'ascii' because readline()
- internally reads and decodes far enough ahead to encounter a non-ascii
- character in CREDITS.txt.
-
-- bpo-32765: Update configdialog General tab docstring to add new widgets to
- the widget list.
-
-Tools/Demos
------------
-
-- bpo-24960: 2to3 and lib2to3 can now read pickled grammar files using
- pkgutil.get_data() rather than probing the filesystem. This lets 2to3 and
- lib2to3 work when run from a zipfile.
-
-- bpo-32222: Fix pygettext not extracting docstrings for functions with type
- annotated arguments. Patch by Toby Harradine.
-
-C API
------
-
-- bpo-29084: Undocumented C API for OrderedDict has been excluded from the
- limited C API. It was added by mistake and actually never worked in the
- limited C API.
-
-
-What's New in Python 3.6.4 final?
-=================================
-
-*Release date: 2017-12-18*
-
-There were no new code changes in version 3.6.4 since v3.6.4rc1.
-
-
-
-What's New in Python 3.6.4 release candidate 1?
-===============================================
-
-*Release date: 2017-12-05*
-
-Core and Builtins
------------------
-
-- bpo-32176: co_flags.CO_NOFREE is now always set correctly by the code
- object constructor based on freevars and cellvars, rather than needing to
- be set correctly by the caller. This ensures it will be cleared
- automatically when additional cell references are injected into a modified
- code object and function.
-
-- bpo-31949: Fixed several issues in printing tracebacks
- (PyTraceBack_Print()). Setting sys.tracebacklimit to 0 or less now
- suppresses printing tracebacks. Setting sys.tracebacklimit to None now
- causes using the default limit. Setting sys.tracebacklimit to an integer
- larger than LONG_MAX now means using the limit LONG_MAX rather than the
- default limit. Fixed integer overflows in the case of more than ``2**31``
- traceback items on Windows. Fixed output errors handling.
-
-- bpo-30696: Fix the interactive interpreter looping endlessly when no
- memory.
-
-- bpo-20047: Bytearray methods partition() and rpartition() now accept only
- bytes-like objects as separator, as documented. In particular they now
- raise TypeError rather of returning a bogus result when an integer is
- passed as a separator.
-
-- bpo-31852: Fix a segmentation fault caused by a combination of the async
- soft keyword and continuation lines.
-
-- bpo-21720: BytesWarning no longer emitted when the *fromlist* argument of
- ``__import__()`` or the ``__all__`` attribute of the module contain bytes
- instances.
-
-- bpo-31825: Fixed OverflowError in the 'unicode-escape' codec and in
- codecs.escape_decode() when decode an escaped non-ascii byte.
-
-- bpo-28603: Print the full context/cause chain of exceptions on interpreter
- exit, even if an exception in the chain is unhashable or compares equal to
- later ones. Patch by Zane Bitter.
-
-- bpo-31786: Fix timeout rounding in the select module to round correctly
- negative timeouts between -1.0 and 0.0. The functions now block waiting
- for events as expected. Previously, the call was incorrectly non-blocking.
- Patch by Pablo Galindo.
-
-- bpo-31642: Restored blocking "from package import module" by setting
- sys.modules["package.module"] to None.
-
-- bpo-31626: Fixed a bug in debug memory allocator. There was a write to
- freed memory after shrinking a memory block.
-
-- bpo-31619: Fixed a ValueError when convert a string with large number of
- underscores to integer with binary base.
-
-- bpo-31592: Fixed an assertion failure in Python parser in case of a bad
- `unicodedata.normalize()`. Patch by Oren Milman.
-
-- bpo-31588: Raise a `TypeError` with a helpful error message when class
- creation fails due to a metaclass with a bad ``__prepare__()`` method.
- Patch by Oren Milman.
-
-- bpo-31566: Fix an assertion failure in `_warnings.warn()` in case of a bad
- ``__name__`` global. Patch by Oren Milman.
-
-- bpo-31505: Fix an assertion failure in `json`, in case
- `_json.make_encoder()` received a bad `encoder()` argument. Patch by Oren
- Milman.
-
-- bpo-31492: Fix assertion failures in case of failing to import from a
- module with a bad ``__name__`` attribute, and in case of failing to access
- an attribute of such a module. Patch by Oren Milman.
-
-- bpo-31490: Fix an assertion failure in `ctypes` class definition, in case
- the class has an attribute whose name is specified in ``_anonymous_`` but
- not in ``_fields_``. Patch by Oren Milman.
-
-- bpo-31478: Fix an assertion failure in `_random.Random.seed()` in case the
- argument has a bad ``__abs__()`` method. Patch by Oren Milman.
-
-- bpo-31315: Fix an assertion failure in imp.create_dynamic(), when
- spec.name is not a string. Patch by Oren Milman.
-
-- bpo-31311: Fix a crash in the ``__setstate__()`` method of
- `ctypes._CData`, in case of a bad ``__dict__``. Patch by Oren Milman.
-
-- bpo-31293: Fix crashes in true division and multiplication of a timedelta
- object by a float with a bad as_integer_ratio() method. Patch by Oren
- Milman.
-
-- bpo-31285: Fix an assertion failure in `warnings.warn_explicit`, when the
- return value of the received loader's get_source() has a bad splitlines()
- method. Patch by Oren Milman.
-
-- bpo-30817: `PyErr_PrintEx()` clears now the ignored exception that may be
- raised by `_PySys_SetObjectId()`, for example when no memory.
-
-Library
--------
-
-- bpo-28556: Two minor fixes for ``typing`` module: allow shallow copying
- instances of generic classes, improve interaction of ``__init_subclass__``
- with generics. Original PRs by Ivan Levkivskyi.
-
-- bpo-27240: The header folding algorithm for the new email policies has
- been rewritten, which also fixes bpo-30788, bpo-31831, and bpo-32182. In
- particular, RFC2231 folding is now done correctly.
-
-- bpo-32186: io.FileIO.readall() and io.FileIO.read() now release the GIL
- when getting the file size. Fixed hang of all threads with inaccessible
- NFS server. Patch by Nir Soffer.
-
-- bpo-12239: Make :meth:`msilib.SummaryInformation.GetProperty` return
- ``None`` when the value of property is ``VT_EMPTY``. Initial patch by
- Mark Mc Mahon.
-
-- bpo-31325: Fix wrong usage of :func:`collections.namedtuple` in the
- :meth:`RobotFileParser.parse() <urllib.robotparser.RobotFileParser.parse>`
- method. Initial patch by Robin Wellner.
-
-- bpo-12382: :func:`msilib.OpenDatabase` now raises a better exception
- message when it couldn't open or create an MSI file. Initial patch by
- William Tisäter.
-
-- bpo-32110: ``codecs.StreamReader.read(n)`` now returns not more than *n*
- characters/bytes for non-negative *n*. This makes it compatible with
- ``read()`` methods of other file-like objects.
-
-- bpo-32072: Fixed issues with binary plists: Fixed saving bytearrays.
- Identical objects will be saved only once. Equal references will be load
- as identical objects. Added support for saving and loading recursive data
- structures.
-
-- bpo-32034: Make asyncio.IncompleteReadError and LimitOverrunError
- pickleable.
-
-- bpo-32015: Fixed the looping of asyncio in the case of reconnection the
- socket during waiting async read/write from/to the socket.
-
-- bpo-32011: Restored support of loading marshal files with the TYPE_INT64
- code. These files can be produced in Python 2.7.
-
-- bpo-31970: Reduce performance overhead of asyncio debug mode.
-
-- bpo-9678: Fixed determining the MAC address in the uuid module: Using
- ifconfig on NetBSD and OpenBSD. Using arp on Linux, FreeBSD, NetBSD and
- OpenBSD. Based on patch by Takayuki Shimizukawa.
-
-- bpo-30057: Fix potential missed signal in signal.signal().
-
-- bpo-31933: Fix Blake2 params leaf_size and node_offset on big endian
- platforms. Patch by Jack O'Connor.
-
-- bpo-31927: Fixed compilation of the socket module on NetBSD 8. Fixed
- assertion failure or reading arbitrary data when parse a AF_BLUETOOTH
- address on NetBSD and DragonFly BSD.
-
-- bpo-27666: Fixed stack corruption in curses.box() and curses.ungetmouse()
- when the size of types chtype or mmask_t is less than the size of C long.
- curses.box() now accepts characters as arguments. Based on patch by Steve
- Fink.
-
-- bpo-31897: plistlib now catches more errors when read binary plists and
- raises InvalidFileException instead of unexpected exceptions.
-
-- bpo-25720: Fix the method for checking pad state of curses WINDOW. Patch
- by Masayuki Yamamoto.
-
-- bpo-31893: Fixed the layout of the kqueue_event structure on OpenBSD and
- NetBSD. Fixed the comparison of the kqueue_event objects.
-
-- bpo-31891: Fixed building the curses module on NetBSD.
-
-- bpo-28416: Instances of pickle.Pickler subclass with the persistent_id()
- method and pickle.Unpickler subclass with the persistent_load() method no
- longer create reference cycles.
-
-- bpo-28326: Fix multiprocessing.Process when stdout and/or stderr is closed
- or None.
-
-- bpo-31457: If nested log adapters are used, the inner ``process()``
- methods are no longer omitted.
-
-- bpo-31457: The ``manager`` property on LoggerAdapter objects is now
- properly settable.
-
-- bpo-31806: Fix timeout rounding in time.sleep(), threading.Lock.acquire()
- and socket.socket.settimeout() to round correctly negative timeouts
- between -1.0 and 0.0. The functions now block waiting for events as
- expected. Previously, the call was incorrectly non-blocking. Patch by
- Pablo Galindo.
-
-- bpo-28603: traceback: Fix a TypeError that occurred during printing of
- exception tracebacks when either the current exception or an exception in
- its context/cause chain is unhashable. Patch by Zane Bitter.
-
-- bpo-30058: Fixed buffer overflow in select.kqueue.control().
-
-- bpo-31770: Prevent a crash when calling the ``__init__()`` method of a
- ``sqlite3.Cursor`` object more than once. Patch by Oren Milman.
-
-- bpo-31672: ``idpattern`` in ``string.Template`` matched some non-ASCII
- characters. Now it uses ``-i`` regular expression local flag to avoid
- non-ASCII characters.
-
-- bpo-31764: Prevent a crash in ``sqlite3.Cursor.close()`` in case the
- ``Cursor`` object is uninitialized. Patch by Oren Milman.
-
-- bpo-31752: Fix possible crash in timedelta constructor called with custom
- integers.
-
-- bpo-31701: On Windows, faulthandler.enable() now ignores MSC and COM
- exceptions.
-
-- bpo-31728: Prevent crashes in `_elementtree` due to unsafe cleanup of
- `Element.text` and `Element.tail`. Patch by Oren Milman.
-
-- bpo-31620: an empty asyncio.Queue now doesn't leak memory when queue.get
- pollers timeout
-
-- bpo-31632: Fix method set_protocol() of class _SSLProtocolTransport in
- asyncio module. This method was previously modifying a wrong reference to
- the protocol.
-
-- bpo-31675: Fixed memory leaks in Tkinter's methods splitlist() and split()
- when pass a string larger than 2 GiB.
-
-- bpo-31673: Fixed typo in the name of Tkinter's method adderrorinfo().
-
-- bpo-30806: Fix the string representation of a netrc object.
-
-- bpo-15037: Added a workaround for getkey() in curses for ncurses 5.7 and
- earlier.
-
-- bpo-25351: Avoid venv activate failures with undefined variables
-
-- bpo-25532: inspect.unwrap() will now only try to unwrap an object
- sys.getrecursionlimit() times, to protect against objects which create a
- new object on every attribute access.
-
-- bpo-30347: Stop crashes when concurrently iterate over itertools.groupby()
- iterators.
-
-- bpo-31516: ``threading.current_thread()`` should not return a dummy thread
- at shutdown.
-
-- bpo-31351: python -m ensurepip now exits with non-zero exit code if pip
- bootstrapping has failed.
-
-- bpo-31482: ``random.seed()`` now works with bytes in version=1
-
-- bpo-31334: Fix ``poll.poll([timeout])`` in the ``select`` module for
- arbitrary negative timeouts on all OSes where it can only be a
- non-negative integer or -1. Patch by Riccardo Coccioli.
-
-- bpo-31310: multiprocessing's semaphore tracker should be launched again if
- crashed.
-
-- bpo-31308: Make multiprocessing's forkserver process immune to Ctrl-C and
- other user interruptions. If it crashes, restart it when necessary.
-
-Documentation
--------------
-
-- bpo-32105: Added asyncio.BaseEventLoop.connect_accepted_socket
- versionadded marker.
-
-- bpo-31537: Fix incorrect usage of ``get_history_length`` in readline
- documentation example code. Patch by Brad Smith.
-
-- bpo-30085: The operator functions without double underscores are preferred
- for clarity. The one with underscores are only kept for
- back-compatibility.
-
-Tests
------
-
-- bpo-31380: Skip test_httpservers test_undecodable_file on macOS: fails on
- APFS.
-
-- bpo-31705: Skip test_socket.test_sha256() on Linux kernel older than 4.5.
- The test fails with ENOKEY on kernel 3.10 (on ppc64le). A fix was merged
- into the kernel 4.5.
-
-- bpo-31174: Fix test_tools.test_unparse: DirectoryTestCase now stores the
- names sample to always test the same files. It prevents false alarms when
- hunting reference leaks.
-
-- bpo-30695: Add the `set_nomemory(start, stop)` and `remove_mem_hooks()`
- functions to the _testcapi module.
-
-Build
------
-
-- bpo-32059: ``detect_modules()`` in ``setup.py`` now also searches the
- sysroot paths when cross-compiling.
-
-- bpo-31957: Fixes Windows SDK version detection when building for Windows.
-
-- bpo-31609: Fixes quotes in PCbuild/clean.bat
-
-- bpo-31934: Abort the build when building out of a not clean source tree.
-
-- bpo-31926: Fixed Argument Clinic sometimes causing compilation errors when
- there was more than one function and/or method in a .c file with the same
- name.
-
-- bpo-28791: Update Windows builds to use SQLite 3.21.0.
-
-- bpo-28791: Update OS X installer to use SQLite 3.21.0.
-
-- bpo-22140: Prevent double substitution of prefix in python-config.sh.
-
-- bpo-31536: Avoid wholesale rebuild after `make regen-all` if nothing
- changed.
-
-Windows
--------
-
-- bpo-1102: Return ``None`` when ``View.Fetch()`` returns
- ``ERROR_NO_MORE_ITEMS`` instead of raising ``MSIError``. Initial patch by
- Anthony Tuininga.
-
-- bpo-31944: Fixes Modify button in Apps and Features dialog.
-
-macOS
------
-
-- bpo-31392: Update macOS installer to use OpenSSL 1.0.2m
-
-IDLE
-----
-
-- bpo-32207: Improve tk event exception tracebacks in IDLE. When tk event
- handling is driven by IDLE's run loop, a confusing and distracting
- queue.EMPTY traceback context is no longer added to tk event exception
- tracebacks. The traceback is now the same as when event handling is
- driven by user code. Patch based on a suggestion by Serhiy Storchaka.
-
-- bpo-32164: Delete unused file idlelib/tabbedpages.py. Use of TabbedPageSet
- in configdialog was replaced by ttk.Notebook.
-
-- bpo-32100: IDLE: Fix old and new bugs in pathbrowser; improve tests. Patch
- mostly by Cheryl Sabella.
-
-- bpo-31858: IDLE -- Restrict shell prompt manipulation to the shell. Editor
- and output windows only see an empty last prompt line. This simplifies
- the code and fixes a minor bug when newline is inserted. Sys.ps1, if
- present, is read on Shell start-up, but is not set or changed.
-
-- bpo-31860: The font sample in the IDLE configuration dialog is now
- editable. Changes persist while IDLE remains open
-
-- bpo-31836: Test_code_module now passes if run after test_idle, which sets
- ps1. The code module uses sys.ps1 if present or sets it to '>>> ' if not.
- Test_code_module now properly tests both behaviors. Ditto for ps2.
-
-- bpo-28603: Fix a TypeError that caused a shell restart when printing a
- traceback that includes an exception that is unhashable. Patch by Zane
- Bitter.
-
-- bpo-13802: Use non-Latin characters in the IDLE's Font settings sample.
- Even if one selects a font that defines a limited subset of the unicode
- Basic Multilingual Plane, tcl/tk will use other fonts that define a
- character. The expanded example give users of non-Latin characters a
- better idea of what they might see in IDLE's shell and editors. To make
- room for the expanded sample, frames on the Font tab are re-arranged. The
- Font/Tabs help explains a bit about the additions.
-
-- bpo-31460: Simplify the API of IDLE's Module Browser. Passing a widget
- instead of an flist with a root widget opens the option of creating a
- browser frame that is only part of a window. Passing a full file name
- instead of pieces assumed to come from a .py file opens the possibility of
- browsing python files that do not end in .py.
-
-- bpo-31649: IDLE - Make _htest, _utest parameters keyword only.
-
-- bpo-31559: Remove test order dependence in idle_test.test_browser.
-
-- bpo-31459: Rename IDLE's module browser from Class Browser to Module
- Browser. The original module-level class and method browser became a
- module browser, with the addition of module-level functions, years ago.
- Nested classes and functions were added yesterday. For
- back-compatibility, the virtual event <<open-class-browser>>, which
- appears on the Keys tab of the Settings dialog, is not changed. Patch by
- Cheryl Sabella.
-
-- bpo-31500: Default fonts now are scaled on HiDPI displays.
-
-- bpo-1612262: IDLE module browser now shows nested classes and functions.
- Original patches for code and tests by Guilherme Polo and Cheryl Sabella,
- respectively.
-
-Tools/Demos
------------
-
-- bpo-30722: Make redemo work with Python 3.6 and newer versions. Also,
- remove the ``LOCALE`` option since it doesn't work with string patterns in
- Python 3. Patch by Christoph Sarnowski.
-
-C API
------
-
-- bpo-20891: Fix PyGILState_Ensure(). When PyGILState_Ensure() is called in
- a non-Python thread before PyEval_InitThreads(), only call
- PyEval_InitThreads() after calling PyThreadState_New() to fix a crash.
-
-- bpo-31532: Fix memory corruption due to allocator mix in getpath.c between
- Py_GetPath() and Py_SetPath()
-
-- bpo-30697: The `PyExc_RecursionErrorInst` singleton is removed and
- `PyErr_NormalizeException()` does not use it anymore. This singleton is
- persistent and its members being never cleared may cause a segfault during
- finalization of the interpreter. See also issue #22898.
-
-
-What's New in Python 3.6.3 final?
-=================================
-
-*Release date: 2017-10-03*
-
-Library
--------
-
-- bpo-31641: Re-allow arbitrary iterables in
- `concurrent.futures.as_completed()`. Fixes regression in 3.6.3rc1.
-
-Build
------
-
-- bpo-31662: Fix typos in Windows ``uploadrelease.bat`` script. Fix Windows
- Doc build issues in ``Doc/make.bat``.
-
-- bpo-31423: Fix building the PDF documentation with newer versions of
- Sphinx.
-
-
-What's New in Python 3.6.3 release candidate 1?
-===============================================
-
-*Release date: 2017-09-18*
-
-Security
---------
-
-- bpo-29781: SSLObject.version() now correctly returns None when handshake
- over BIO has not been performed yet.
-
-- bpo-30947: Upgrade libexpat embedded copy from version 2.2.1 to 2.2.3 to
- get security fixes.
-
-Core and Builtins
------------------
-
-- bpo-31471: Fix an assertion failure in `subprocess.Popen()` on Windows, in
- case the env argument has a bad keys() method. Patch by Oren Milman.
-
-- bpo-31418: Fix an assertion failure in `PyErr_WriteUnraisable()` in case
- of an exception with a bad ``__module__`` attribute. Patch by Oren Milman.
-
-- bpo-31416: Fix assertion failures in case of a bad warnings.filters or
- warnings.defaultaction. Patch by Oren Milman.
-
-- bpo-31411: Raise a TypeError instead of SystemError in case
- warnings.onceregistry is not a dictionary. Patch by Oren Milman.
-
-- bpo-31373: Fix several possible instances of undefined behavior due to
- floating-point demotions.
-
-- bpo-30465: Location information (``lineno`` and ``col_offset``) in
- f-strings is now (mostly) correct. This fixes tools like flake8 from
- showing warnings on the wrong line (typically the first line of the file).
-
-- bpo-31343: Include sys/sysmacros.h for major(), minor(), and makedev().
- GNU C libray plans to remove the functions from sys/types.h.
-
-- bpo-31291: Fix an assertion failure in `zipimport.zipimporter.get_data` on
- Windows, when the return value of ``pathname.replace('/','\\')`` isn't a
- string. Patch by Oren Milman.
-
-- bpo-31271: Fix an assertion failure in the write() method of
- `io.TextIOWrapper`, when the encoder doesn't return a bytes object. Patch
- by Oren Milman.
-
-- bpo-31243: Fix a crash in some methods of `io.TextIOWrapper`, when the
- decoder's state is invalid. Patch by Oren Milman.
-
-- bpo-30721: ``print`` now shows correct usage hint for using Python 2
- redirection syntax. Patch by Sanyam Khurana.
-
-- bpo-31070: Fix a race condition in importlib _get_module_lock().
-
-- bpo-31095: Fix potential crash during GC caused by ``tp_dealloc`` which
- doesn't call ``PyObject_GC_UnTrack()``.
-
-- bpo-31071: Avoid masking original TypeError in call with * unpacking when
- other arguments are passed.
-
-- bpo-30978: str.format_map() now passes key lookup exceptions through.
- Previously any exception was replaced with a KeyError exception.
-
-- bpo-30808: Use _Py_atomic API for concurrency-sensitive signal state.
-
-- bpo-30876: Relative import from unloaded package now reimports the package
- instead of failing with SystemError. Relative import from non-package now
- fails with ImportError rather than SystemError.
-
-- bpo-30703: Improve signal delivery. Avoid using Py_AddPendingCall from
- signal handler, to avoid calling signal-unsafe functions. The tests I'm
- adding here fail without the rest of the patch, on Linux and OS X. This
- means our signal delivery logic had defects (some signals could be lost).
-
-- bpo-30765: Avoid blocking in pthread_mutex_lock() when
- PyThread_acquire_lock() is asked not to block.
-
-- bpo-31161: Make sure the 'Missing parentheses' syntax error message is
- only applied to SyntaxError, not to subclasses. Patch by Martijn Pieters.
-
-- bpo-30814: Fixed a race condition when import a submodule from a package.
-
-- bpo-30597: ``print`` now shows expected input in custom error message when
- used as a Python 2 statement. Patch by Sanyam Khurana.
-
-Library
--------
-
-- bpo-31499: xml.etree: Fix a crash when a parser is part of a reference
- cycle.
-
-- bpo-28556: typing.get_type_hints now finds the right globalns for classes
- and modules by default (when no ``globalns`` was specified by the caller).
-
-- bpo-28556: Speed improvements to the ``typing`` module. Original PRs by
- Ivan Levkivskyi and Mitar.
-
-- bpo-31544: The C accelerator module of ElementTree ignored exceptions
- raised when looking up TreeBuilder target methods in XMLParser().
-
-- bpo-31234: socket.create_connection() now fixes manually a reference
- cycle: clear the variable storing the last exception on success.
-
-- bpo-31457: LoggerAdapter objects can now be nested.
-
-- bpo-31400: Improves SSL error handling to avoid losing error numbers.
-
-- bpo-28958: ssl.SSLContext() now uses OpenSSL error information when a
- context cannot be instantiated.
-
-- bpo-27340: SSLSocket.sendall() now uses memoryview to create slices of
- data. This fixes support for all bytes-like object. It is also more
- efficient and avoids costly copies.
-
-- bpo-31178: Fix string concatenation bug in rare error path in the
- subprocess module
-
-- bpo-31350: Micro-optimize :func:`asyncio._get_running_loop` to become up
- to 10% faster.
-
-- bpo-31170: expat: Update libexpat from 2.2.3 to 2.2.4. Fix copying of
- partial characters for UTF-8 input (libexpat bug 115):
- https://github.com/libexpat/libexpat/issues/115
-
-- bpo-29136: Add TLS 1.3 cipher suites and OP_NO_TLSv1_3.
-
-- bpo-29212: Fix concurrent.futures.thread.ThreadPoolExecutor threads to
- have a non repr() based thread name by default when no thread_name_prefix
- is supplied. They will now identify themselves as
- "ThreadPoolExecutor-y_n".
-
-- bpo-9146: Fix a segmentation fault in _hashopenssl when standard hash
- functions such as md5 are not available in the linked OpenSSL library. As
- in some special FIPS-140 build environments.
-
-- bpo-27144: The ``map()`` and ``as_completed()`` iterators in
- ``concurrent.futures`` now avoid keeping a reference to yielded objects.
-
-- bpo-10746: Fix ctypes producing wrong :pep:`3118` type codes for integer
- types.
-
-- bpo-22536: The subprocess module now sets the filename when
- FileNotFoundError is raised on POSIX systems due to the executable or cwd
- not being found.
-
-- bpo-31249: concurrent.futures: WorkItem.run() used by ThreadPoolExecutor
- now breaks a reference cycle between an exception object and the WorkItem
- object.
-
-- bpo-31247: xmlrpc.server now explicitly breaks reference cycles when using
- sys.exc_info() in code handling exceptions.
-
-- bpo-30102: The ssl and hashlib modules now call
- OPENSSL_add_all_algorithms_noconf() on OpenSSL < 1.1.0. The function
- detects CPU features and enables optimizations on some CPU architectures
- such as POWER8. Patch is based on research from Gustavo Serra Scalet.
-
-- bpo-31185: Fixed miscellaneous errors in asyncio speedup module.
-
-- bpo-31135: ttk: fix the destroy() method of LabeledScale and OptionMenu
- classes. Call the parent destroy() method even if the used attribute
- doesn't exist. The LabeledScale.destroy() method now also explicitly
- clears label and scale attributes to help the garbage collector to destroy
- all widgets.
-
-- bpo-31107: Fix `copyreg._slotnames()` mangled attribute calculation for
- classes whose name begins with an underscore. Patch by Shane Harvey.
-
-- bpo-31061: Fixed a crash when using asyncio and threads.
-
-- bpo-30502: Fix handling of long oids in ssl. Based on patch by Christian
- Heimes.
-
-- bpo-30119: ftplib.FTP.putline() now throws ValueError on commands that
- contains CR or LF. Patch by Dong-hee Na.
-
-- bpo-30595: multiprocessing.Queue.get() with a timeout now polls its reader
- in non-blocking mode if it succeeded to acquire the lock but the acquire
- took longer than the timeout.
-
-- bpo-29403: Fix ``unittest.mock``'s autospec to not fail on method-bound
- builtin functions. Patch by Aaron Gallagher.
-
-- bpo-30961: Fix decrementing a borrowed reference in tracemalloc.
-
-- bpo-25684: Change ``ttk.OptionMenu`` radiobuttons to be unique across
- instances of ``OptionMenu``.
-
-- bpo-30886: Fix multiprocessing.Queue.join_thread(): it now waits until the
- thread completes, even if the thread was started by the same process which
- created the queue.
-
-- bpo-29854: Fix segfault in readline when using readline's history-size
- option. Patch by Nir Soffer.
-
-- bpo-30319: socket.close() now ignores ECONNRESET error.
-
-- bpo-30828: Fix out of bounds write in
- `asyncio.CFuture.remove_done_callback()`.
-
-- bpo-30807: signal.setitimer() may disable the timer when passed a tiny
- value. Tiny values (such as 1e-6) are valid non-zero values for
- setitimer(), which is specified as taking microsecond-resolution
- intervals. However, on some platform, our conversion routine could convert
- 1e-6 into a zero interval, therefore disabling the timer instead of
- (re-)scheduling it.
-
-- bpo-30441: Fix bug when modifying os.environ while iterating over it
-
-- bpo-30532: Fix email header value parser dropping folding white space in
- certain cases.
-
-- bpo-30879: os.listdir() and os.scandir() now emit bytes names when called
- with bytes-like argument.
-
-- bpo-30746: Prohibited the '=' character in environment variable names in
- ``os.putenv()`` and ``os.spawn*()``.
-
-- bpo-29755: Fixed the lgettext() family of functions in the gettext module.
- They now always return bytes.
-
-Documentation
--------------
-
-- bpo-31294: Fix incomplete code snippet in the ZeroMQSocketListener and
- ZeroMQSocketHandler examples and adapt them to Python 3.
-
-- bpo-21649: Add RFC 7525 and Mozilla server side TLS links to SSL
- documentation.
-
-- bpo-30803: Clarify doc on truth value testing. Original patch by Peter
- Thomassen.
-
-Tests
------
-
-- bpo-31320: Silence traceback in test_ssl
-
-- bpo-25674: Remove sha256.tbs-internet.com ssl test
-
-- bpo-30715: Address ALPN callback changes for OpenSSL 1.1.0f. The latest
- version behaves like OpenSSL 1.0.2 and no longer aborts handshake.
-
-- bpo-30822: regrtest: Exclude tzdata from regrtest --all. When running the
- test suite using --use=all / -u all, exclude tzdata since it makes
- test_datetime too slow (15-20 min on some buildbots) which then times out
- on some buildbots. Fix also regrtest command line parser to allow passing
- -u extralargefile to run test_zipfile64.
-
-Build
------
-
-- bpo-30854: Fix compile error when compiling --without-threads. Patch by
- Masayuki Yamamoto.
-
-Windows
--------
-
-- bpo-30389: Adds detection of Visual Studio 2017 to distutils on Windows.
-
-- bpo-31340: Change to building with MSVC v141 (included with Visual Studio
- 2017)
-
-- bpo-30581: os.cpu_count() now returns the correct number of processors on
- Windows when the number of logical processors is greater than 64.
-
-- bpo-30731: Add a missing xmlns to python.manifest so that it matches the
- schema.
-
-IDLE
-----
-
-- bpo-31493: IDLE code context -- fix code update and font update timers.
- Canceling timers prevents a warning message when test_idle completes.
-
-- bpo-31488: IDLE - Update non-key options in former extension classes. When
- applying configdialog changes, call .reload for each feature class. Change
- ParenMatch so updated options affect existing instances attached to
- existing editor windows.
-
-- bpo-31477: IDLE - Improve rstrip entry in doc. Strip trailing whitespace
- strips more than blank spaces. Multiline string literals are not skipped.
-
-- bpo-31480: IDLE - make tests pass with zzdummy extension disabled by
- default.
-
-- bpo-31421: Document how IDLE runs tkinter programs. IDLE calls tcl/tk
- update in the background in order to make live interaction and
- experimentation with tkinter applications much easier.
-
-- bpo-31414: IDLE -- fix tk entry box tests by deleting first. Adding to an
- int entry is not the same as deleting and inserting because int('') will
- fail.
-
-- bpo-31051: Rearrange IDLE configdialog GenPage into Window, Editor, and
- Help sections.
-
-- bpo-30617: IDLE - Add docstrings and tests for outwin subclass of editor.
- Move some data and functions from the class to module level. Patch by
- Cheryl Sabella.
-
-- bpo-31287: IDLE - Do not modify tkinter.message in test_configdialog.
-
-- bpo-27099: Convert IDLE's built-in 'extensions' to regular features. About
- 10 IDLE features were implemented as supposedly optional extensions. Their
- different behavior could be confusing or worse for users and not good for
- maintenance. Hence the conversion. The main difference for users is that
- user configurable key bindings for builtin features are now handled
- uniformly. Now, editing a binding in a keyset only affects its value in
- the keyset. All bindings are defined together in the system-specific
- default keysets in config-extensions.def. All custom keysets are saved as
- a whole in config-extension.cfg. All take effect as soon as one clicks
- Apply or Ok. The affected events are '<<force-open-completions>>',
- '<<expand-word>>', '<<force-open-calltip>>', '<<flash-paren>>',
- '<<format-paragraph>>', '<<run-module>>', '<<check-module>>', and
- '<<zoom-height>>'. Any (global) customizations made before 3.6.3 will not
- affect their keyset-specific customization after 3.6.3. and vice versa.
- Initial patch by Charles Wohlganger.
-
-- bpo-31206: IDLE: Factor HighPage(Frame) class from ConfigDialog. Patch by
- Cheryl Sabella.
-
-- bpo-31001: Add tests for configdialog highlight tab. Patch by Cheryl
- Sabella.
-
-- bpo-31205: IDLE: Factor KeysPage(Frame) class from ConfigDialog. The
- slightly modified tests continue to pass. Patch by Cheryl Sabella.
-
-- bpo-31130: IDLE -- stop leaks in test_configdialog. Initial patch by
- Victor Stinner.
-
-- bpo-31002: Add tests for configdialog keys tab. Patch by Cheryl Sabella.
-
-- bpo-19903: IDLE: Calltips use `inspect.signature` instead of
- `inspect.getfullargspec`. This improves calltips for builtins converted to
- use Argument Clinic. Patch by Louie Lu.
-
-- bpo-31083: IDLE - Add an outline of a TabPage class in configdialog.
- Update existing classes to match outline. Initial patch by Cheryl Sabella.
-
-- bpo-31050: Factor GenPage(Frame) class from ConfigDialog. The slightly
- modified tests continue to pass. Patch by Cheryl Sabella.
-
-- bpo-31004: IDLE - Factor FontPage(Frame) class from ConfigDialog. Slightly
- modified tests continue to pass. Fix General tests. Patch mostly by Cheryl
- Sabella.
-
-- bpo-30781: IDLE - Use ttk widgets in ConfigDialog. Patches by Terry Jan
- Reedy and Cheryl Sabella.
-
-- bpo-31060: IDLE - Finish rearranging methods of ConfigDialog Grouping
- methods pertaining to each tab and the buttons will aid writing tests and
- improving the tabs and will enable splitting the groups into classes.
-
-- bpo-30853: IDLE -- Factor a VarTrace class out of ConfigDialog. Instance
- tracers manages pairs consisting of a tk variable and a callback function.
- When tracing is turned on, setting the variable calls the function. Test
- coverage for the new class is 100%.
-
-- bpo-31003: IDLE: Add more tests for General tab.
-
-- bpo-30993: IDLE - Improve configdialog font page and tests. In
- configdialog: Document causal pathways in create_font_tab docstring.
- Simplify some attribute names. Move set_samples calls to var_changed_font
- (idea from Cheryl Sabella). Move related functions to positions after the
- create widgets function. In test_configdialog: Fix test_font_set so not
- order dependent. Fix renamed test_indent_scale so it tests the widget.
- Adjust tests for movement of set_samples call. Add tests for load
- functions. Put all font tests in one class and tab indent tests in
- another. Except for two lines, these tests completely cover the related
- functions.
-
-- bpo-30981: IDLE -- Add more configdialog font page tests.
-
-- bpo-28523: IDLE: replace 'colour' with 'color' in configdialog.
-
-- bpo-30917: Add tests for idlelib.config.IdleConf. Increase coverage from
- 46% to 96%. Patch by Louie Lu.
-
-- bpo-30934: Document coverage details for idlelib tests. Add section to
- idlelib/idle-test/README.txt. Include check that branches are taken both
- ways. Exclude IDLE-specific code that does not run during unit tests.
-
-- bpo-30913: IDLE: Document ConfigDialog tk Vars, methods, and widgets in
- docstrings This will facilitate improving the dialog and splitting up the
- class. Original patch by Cheryl Sabella.
-
-- bpo-30899: IDLE: Add tests for ConfigParser subclasses in config. Patch by
- Louie Lu.
-
-- bpo-30881: IDLE: Add docstrings to browser.py. Patch by Cheryl Sabella.
-
-- bpo-30851: IDLE: Remove unused variables in configdialog. One is a
- duplicate, one is set but cannot be altered by users. Patch by Cheryl
- Sabella.
-
-- bpo-30870: IDLE: In Settings dialog, select font with Up, Down keys as
- well as mouse. Initial patch by Louie Lu.
-
-- bpo-8231: IDLE: call config.IdleConf.GetUserCfgDir only once.
-
-- bpo-30779: IDLE: Factor ConfigChanges class from configdialog, put in
- config; test. * In config, put dump test code in a function; run it and
- unittest in 'if __name__ == '__main__'. * Add class config.ConfigChanges
- based on changes_class_v4.py on bpo issue. * Add class
- test_config.ChangesTest, partly using configdialog_tests_v1.py. * Revise
- configdialog to use ConfigChanges; see tracker msg297804. * Revise
- test_configdialog to match configdialog changes. * Remove configdialog
- functions unused or moved to ConfigChanges. Cheryl Sabella contributed
- parts of the patch.
-
-- bpo-30777: IDLE: configdialog - Add docstrings and fix comments. Patch by
- Cheryl Sabella.
-
-- bpo-30495: IDLE: Improve textview with docstrings, PEP8 names, and more
- tests. Patch by Cheryl Sabella.
-
-- bpo-30723: IDLE: Make several improvements to parenmatch. Add 'parens'
- style to highlight both opener and closer. Make 'default' style, which is
- not default, a synonym for 'opener'. Make time-delay work the same with
- all styles. Add help for config dialog extensions tab, including help for
- parenmatch. Add new tests. Original patch by Charles Wohlganger.
-
-- bpo-30674: IDLE: add docstrings to grep module. Patch by Cheryl Sabella
-
-- bpo-21519: IDLE's basic custom key entry dialog now detects duplicates
- properly. Original patch by Saimadhav Heblikar.
-
-- bpo-29910: IDLE no longer deletes a character after commenting out a
- region by a key shortcut. Add ``return 'break'`` for this and other
- potential conflicts between IDLE and default key bindings.
-
-- bpo-30728: Review and change idlelib.configdialog names. Lowercase method
- and attribute names. Replace 'colour' with 'color', expand overly cryptic
- names, delete unneeded underscores. Replace ``import *`` with specific
- imports. Patches by Cheryl Sabella.
-
-- bpo-6739: IDLE: Verify user-entered key sequences by trying to bind them
- with tk. Add tests for all 3 validation functions. Original patch by G
- Polo. Tests added by Cheryl Sabella.
-
-Tools/Demos
------------
-
-- bpo-30983: gdb integration commands (py-bt, etc.) work on optimized shared
- builds now, too. :pep:`523` introduced _PyEval_EvalFrameDefault which
- inlines PyEval_EvalFrameEx on non-debug shared builds. This broke the
- ability to use py-bt, py-up, and a few other Python-specific gdb
- integrations. The problem is fixed by only looking for
- _PyEval_EvalFrameDefault frames in python-gdb.py. Original patch by Bruno
- "Polaco" Penteado.
-
-
-What's New in Python 3.6.2 final?
-=================================
-
-*Release date: 2017-07-17*
-
-No changes since release candidate 2
-
-
-
-What's New in Python 3.6.2 release candidate 2?
-===============================================
-
-*Release date: 2017-07-07*
-
-Security
---------
-
-- bpo-30730: Prevent environment variables injection in subprocess on
- Windows. Prevent passing other environment variables and command
- arguments.
-
-- bpo-30694: Upgrade expat copy from 2.2.0 to 2.2.1 to get fixes of multiple
- security vulnerabilities including: CVE-2017-9233 (External entity
- infinite loop DoS), CVE-2016-9063 (Integer overflow, re-fix),
- CVE-2016-0718 (Fix regression bugs from 2.2.0's fix to CVE-2016-0718) and
- CVE-2012-0876 (Counter hash flooding with SipHash). Note: the
- CVE-2016-5300 (Use os-specific entropy sources like getrandom) doesn't
- impact Python, since Python already gets entropy from the OS to set the
- expat secret using ``XML_SetHashSalt()``.
-
-- bpo-30500: Fix urllib.parse.splithost() to correctly parse fragments. For
- example, ``splithost('//127.0.0.1#@evil.com/')`` now correctly returns the
- ``127.0.0.1`` host, instead of treating ``@evil.com`` as the host in an
- authentication (``login@host``).
-
-
-What's New in Python 3.6.2 release candidate 1?
-===============================================
-
-*Release date: 2017-06-17*
-
-Security
---------
-
-- bpo-29591: Update expat copy from 2.1.1 to 2.2.0 to get fixes of
- CVE-2016-0718 and CVE-2016-4472. See
- https://sourceforge.net/p/expat/bugs/537/ for more information.
-
-Core and Builtins
------------------
-
-- bpo-30682: Removed a too-strict assertion that failed for certain
- f-strings, such as eval("f'\\\n'") and eval("f'\\\r'").
-
-- bpo-30604: Move co_extra_freefuncs to not be per-thread to avoid crashes
-
-- bpo-29104: Fixed parsing backslashes in f-strings.
-
-- bpo-27945: Fixed various segfaults with dict when input collections are
- mutated during searching, inserting or comparing. Based on patches by
- Duane Griffin and Tim Mitchell.
-
-- bpo-25794: Fixed type.__setattr__() and type.__delattr__() for
- non-interned attribute names. Based on patch by Eryk Sun.
-
-- bpo-30039: If a KeyboardInterrupt happens when the interpreter is in the
- middle of resuming a chain of nested 'yield from' or 'await' calls, it's
- now correctly delivered to the innermost frame.
-
-- bpo-12414: sys.getsizeof() on a code object now returns the sizes which
- includes the code struct and sizes of objects which it references. Patch
- by Dong-hee Na.
-
-- bpo-29949: Fix memory usage regression of set and frozenset object.
-
-- bpo-29935: Fixed error messages in the index() method of tuple, list and
- deque when pass indices of wrong type.
-
-- bpo-29859: Show correct error messages when any of the pthread_* calls in
- thread_pthread.h fails.
-
-- bpo-28876: ``bool(range)`` works even if ``len(range)`` raises
- :exc:`OverflowError`.
-
-- bpo-29600: Fix wrapping coroutine return values in StopIteration.
-
-- bpo-28856: Fix an oversight that %b format for bytes should support
- objects follow the buffer protocol.
-
-- bpo-29714: Fix a regression that bytes format may fail when containing
- zero bytes inside.
-
-- bpo-29478: If max_line_length=None is specified while using the Compat32
- policy, it is no longer ignored. Patch by Mircea Cosbuc.
-
-Library
--------
-
-- bpo-30616: Functional API of enum allows to create empty enums. Patched by
- Dong-hee Na
-
-- bpo-30038: Fix race condition between signal delivery and wakeup file
- descriptor. Patch by Nathaniel Smith.
-
-- bpo-23894: lib2to3 now recognizes ``rb'...'`` and ``f'...'`` strings.
-
-- bpo-23890: unittest.TestCase.assertRaises() now manually breaks a
- reference cycle to not keep objects alive longer than expected.
-
-- bpo-30149: inspect.signature() now supports callables with
- variable-argument parameters wrapped with partialmethod. Patch by Dong-hee
- Na.
-
-- bpo-30645: Fix path calculation in imp.load_package(), fixing it for cases
- when a package is only shipped with bytecodes. Patch by Alexandru
- Ardelean.
-
-- bpo-29931: Fixed comparison check for ipaddress.ip_interface objects.
- Patch by Sanjay Sundaresan.
-
-- bpo-30605: re.compile() no longer raises a BytesWarning when compiling a
- bytes instance with misplaced inline modifier. Patch by Roy Williams.
-
-- bpo-24484: Avoid race condition in multiprocessing cleanup (#2159)
-
-- bpo-28994: The traceback no longer displayed for SystemExit raised in a
- callback registered by atexit.
-
-- bpo-30508: Don't log exceptions if Task/Future "cancel()" method was
- called.
-
-- bpo-28556: Updates to typing module: Add generic AsyncContextManager, add
- support for ContextManager on all versions. Original PRs by Jelle Zijlstra
- and Ivan Levkivskyi
-
-- bpo-29870: Fix ssl sockets leaks when connection is aborted in asyncio/ssl
- implementation. Patch by Michaël Sghaïer.
-
-- bpo-29743: Closing transport during handshake process leaks open socket.
- Patch by Nikolay Kim
-
-- bpo-27585: Fix waiter cancellation in asyncio.Lock. Patch by Mathieu
- Sornay.
-
-- bpo-30418: On Windows, subprocess.Popen.communicate() now also ignore
- EINVAL on stdin.write() if the child process is still running but closed
- the pipe.
-
-- bpo-29822: inspect.isabstract() now works during __init_subclass__. Patch
- by Nate Soares.
-
-- bpo-29581: ABCMeta.__new__ now accepts ``**kwargs``, allowing abstract
- base classes to use keyword parameters in __init_subclass__. Patch by Nate
- Soares.
-
-- bpo-30557: faulthandler now correctly filters and displays exception codes
- on Windows
-
-- bpo-30378: Fix the problem that logging.handlers.SysLogHandler cannot
- handle IPv6 addresses.
-
-- bpo-29960: Preserve generator state when _random.Random.setstate() raises
- an exception. Patch by Bryan Olson.
-
-- bpo-30414: multiprocessing.Queue._feed background running thread do not
- break from main loop on exception.
-
-- bpo-30003: Fix handling escape characters in HZ codec. Based on patch by
- Ma Lin.
-
-- bpo-30301: Fix AttributeError when using SimpleQueue.empty() under *spawn*
- and *forkserver* start methods.
-
-- bpo-30329: imaplib and poplib now catch the Windows socket WSAEINVAL error
- (code 10022) on shutdown(SHUT_RDWR): An invalid operation was attempted.
- This error occurs sometimes on SSL connections.
-
-- bpo-30375: Warnings emitted when compile a regular expression now always
- point to the line in the user code. Previously they could point into
- inners of the re module if emitted from inside of groups or conditionals.
-
-- bpo-30048: Fixed ``Task.cancel()`` can be ignored when the task is running
- coroutine and the coroutine returned without any more ``await``.
-
-- bpo-30266: contextlib.AbstractContextManager now supports
- anti-registration by setting __enter__ = None or __exit__ = None,
- following the pattern introduced in bpo-25958. Patch by Jelle Zijlstra.
-
-- bpo-30298: Weaken the condition of deprecation warnings for inline
- modifiers. Now allowed several subsequential inline modifiers at the start
- of the pattern (e.g. ``'(?i)(?s)...'``). In verbose mode whitespaces and
- comments now are allowed before and between inline modifiers (e.g. ``'(?x)
- (?i) (?s)...'``).
-
-- bpo-29990: Fix range checking in GB18030 decoder. Original patch by Ma
- Lin.
-
-- bpo-26293: Change resulted because of zipfile breakage. (See also:
- bpo-29094)
-
-- bpo-30243: Removed the __init__ methods of _json's scanner and encoder.
- Misusing them could cause memory leaks or crashes. Now scanner and
- encoder objects are completely initialized in the __new__ methods.
-
-- bpo-30185: Avoid KeyboardInterrupt tracebacks in forkserver helper process
- when Ctrl-C is received.
-
-- bpo-28556: Various updates to typing module: add typing.NoReturn type, use
- WrapperDescriptorType, minor bug-fixes. Original PRs by Jim
- Fasarakis-Hilliard and Ivan Levkivskyi.
-
-- bpo-30205: Fix getsockname() for unbound AF_UNIX sockets on Linux.
-
-- bpo-30070: Fixed leaks and crashes in errors handling in the parser
- module.
-
-- bpo-30061: Fixed crashes in IOBase methods __next__() and readlines() when
- readline() or __next__() respectively return non-sizeable object. Fixed
- possible other errors caused by not checking results of PyObject_Size(),
- PySequence_Size(), or PyMapping_Size().
-
-- bpo-30017: Allowed calling the close() method of the zip entry writer
- object multiple times. Writing to a closed writer now always produces a
- ValueError.
-
-- bpo-30068: _io._IOBase.readlines will check if it's closed first when hint
- is present.
-
-- bpo-29694: Fixed race condition in pathlib mkdir with flags parents=True.
- Patch by Armin Rigo.
-
-- bpo-29692: Fixed arbitrary unchaining of RuntimeError exceptions in
- contextlib.contextmanager. Patch by Siddharth Velankar.
-
-- bpo-29998: Pickling and copying ImportError now preserves name and path
- attributes.
-
-- bpo-29953: Fixed memory leaks in the replace() method of datetime and time
- objects when pass out of bound fold argument.
-
-- bpo-29942: Fix a crash in itertools.chain.from_iterable when encountering
- long runs of empty iterables.
-
-- bpo-27863: Fixed multiple crashes in ElementTree caused by race conditions
- and wrong types.
-
-- bpo-28699: Fixed a bug in pools in multiprocessing.pool that raising an
- exception at the very first of an iterable may swallow the exception or
- make the program hang. Patch by Davin Potts and Xiang Zhang.
-
-- bpo-25803: Avoid incorrect errors raised by Path.mkdir(exist_ok=True) when
- the OS gives priority to errors such as EACCES over EEXIST.
-
-- bpo-29861: Release references to tasks, their arguments and their results
- as soon as they are finished in multiprocessing.Pool.
-
-- bpo-29884: faulthandler: Restore the old sigaltstack during teardown.
- Patch by Christophe Zeitouny.
-
-- bpo-25455: Fixed crashes in repr of recursive buffered file-like objects.
-
-- bpo-29800: Fix crashes in partial.__repr__ if the keys of partial.keywords
- are not strings. Patch by Michael Seifert.
-
-- bpo-29742: get_extra_info() raises exception if get called on closed ssl
- transport. Patch by Nikolay Kim.
-
-- bpo-8256: Fixed possible failing or crashing input() if attributes
- "encoding" or "errors" of sys.stdin or sys.stdout are not set or are not
- strings.
-
-- bpo-28298: Fix a bug that prevented array 'Q', 'L' and 'I' from accepting
- big intables (objects that have __int__) as elements. Patch by Oren
- Milman.
-
-- bpo-28231: The zipfile module now accepts path-like objects for external
- paths.
-
-- bpo-26915: index() and count() methods of collections.abc.Sequence now
- check identity before checking equality when do comparisons.
-
-- bpo-29615: SimpleXMLRPCDispatcher no longer chains KeyError (or any other
- exception) to exception(s) raised in the dispatched methods. Patch by Petr
- Motejlek.
-
-- bpo-30177: path.resolve(strict=False) no longer cuts the path after the
- first element not present in the filesystem. Patch by Antoine Pietri.
-
-IDLE
-----
-
-- bpo-15786: Fix several problems with IDLE's autocompletion box. The
- following should now work: clicking on selection box items; using the
- scrollbar; selecting an item by hitting Return. Hangs on MacOSX should no
- longer happen. Patch by Louie Lu.
-
-- bpo-25514: Add doc subsubsection about IDLE failure to start. Popup
- no-connection message directs users to this section.
-
-- bpo-30642: Fix reference leaks in IDLE tests. Patches by Louie Lu and
- Terry Jan Reedy.
-
-- bpo-30495: Add docstrings for textview.py and use PEP8 names. Patches by
- Cheryl Sabella and Terry Jan Reedy.
-
-- bpo-30290: Help-about: use pep8 names and add tests. Increase coverage to
- 100%. Patches by Louie Lu, Cheryl Sabella, and Terry Jan Reedy.
-
-- bpo-30303: Add _utest option to textview; add new tests. Increase coverage
- to 100%. Patches by Louie Lu and Terry Jan Reedy.
-
-C API
------
-
-- bpo-27867: Function PySlice_GetIndicesEx() no longer replaced with a macro
- if Py_LIMITED_API is not set.
-
-Build
------
-
-- bpo-29941: Add ``--with-assertions`` configure flag to explicitly enable C
- ``assert()`` checks. Defaults to off. ``--with-pydebug`` implies
- ``--with-assertions``.
-
-- bpo-28787: Fix out-of-tree builds of Python when configured with
- ``--with--dtrace``.
-
-- bpo-29243: Prevent unnecessary rebuilding of Python during ``make test``,
- ``make install`` and some other make targets when configured with
- ``--enable-optimizations``.
-
-- bpo-23404: Don't regenerate generated files based on file modification
- time anymore: the action is now explicit. Replace ``make touch`` with
- ``make regen-all``.
-
-- bpo-29643: Fix ``--enable-optimization`` didn't work.
-
-Documentation
--------------
-
-- bpo-30176: Add missing attribute related constants in curses
- documentation.
-
-- bpo-30052: the link targets for :func:`bytes` and :func:`bytearray` are
- now their respective type definitions, rather than the corresponding
- builtin function entries. Use :ref:`bytes <func-bytes>` and
- :ref:`bytearray <func-bytearray>` to reference the latter. In order to
- ensure this and future cross-reference updates are applied automatically,
- the daily documentation builds now disable the default output caching
- features in Sphinx.
-
-- bpo-26985: Add missing info of code object in inspect documentation.
-
-Tools/Demos
------------
-
-- bpo-29367: python-gdb.py now supports also ``method-wrapper``
- (``wrapperobject``) objects.
-
-Tests
------
-
-- bpo-30357: test_thread: setUp() now uses support.threading_setup() and
- support.threading_cleanup() to wait until threads complete to avoid random
- side effects on following tests. Initial patch written by Grzegorz
- Grzywacz.
-
-- bpo-30197: Enhanced functions swap_attr() and swap_item() in the
- test.support module. They now work when delete replaced attribute or item
- inside the with statement. The old value of the attribute or item (or
- None if it doesn't exist) now will be assigned to the target of the "as"
- clause, if there is one.
-
-Windows
--------
-
-- bpo-30687: Locate msbuild.exe on Windows when building rather than
- vcvarsall.bat
-
-- bpo-30450: The build process on Windows no longer depends on Subversion,
- instead pulling external code from GitHub via a Python script. If Python
- 3.6 is not found on the system (via ``py -3.6``), NuGet is used to
- download a copy of 32-bit Python.
-
-
-What's New in Python 3.6.1 final?
-=================================
-
-*Release date: 2017-03-21*
-
-Core and Builtins
------------------
-
-- bpo-29723: The ``sys.path[0]`` initialization change for bpo-29139 caused
- a regression by revealing an inconsistency in how sys.path is initialized
- when executing ``__main__`` from a zipfile, directory, or other import
- location. The interpreter now consistently avoids ever adding the import
- location's parent directory to ``sys.path``, and ensures no other
- ``sys.path`` entries are inadvertently modified when inserting the import
- location named on the command line.
-
-Build
------
-
-- bpo-27593: fix format of git information used in sys.version
-
-- Fix incompatible comment in python.h
-
-
-What's New in Python 3.6.1 release candidate 1?
-===============================================
-
-*Release date: 2017-03-04*
-
-Core and Builtins
------------------
-
-- bpo-28893: Set correct __cause__ for errors about invalid awaitables
- returned from __aiter__ and __anext__.
-
-- bpo-29683: Fixes to memory allocation in _PyCode_SetExtra. Patch by Brian
- Coleman.
-
-- bpo-29684: Fix minor regression of PyEval_CallObjectWithKeywords. It
- should raise TypeError when kwargs is not a dict. But it might cause segv
- when args=NULL and kwargs is not a dict.
-
-- bpo-28598: Support __rmod__ for subclasses of str being called before
- str.__mod__. Patch by Martijn Pieters.
-
-- bpo-29607: Fix stack_effect computation for CALL_FUNCTION_EX. Patch by
- Matthieu Dartiailh.
-
-- bpo-29602: Fix incorrect handling of signed zeros in complex constructor
- for complex subclasses and for inputs having a __complex__ method. Patch
- by Serhiy Storchaka.
-
-- bpo-29347: Fixed possibly dereferencing undefined pointers when creating
- weakref objects.
-
-- bpo-29438: Fixed use-after-free problem in key sharing dict.
-
-- bpo-29319: Prevent RunMainFromImporter overwriting sys.path[0].
-
-- bpo-29337: Fixed possible BytesWarning when compare the code objects.
- Warnings could be emitted at compile time.
-
-- bpo-29327: Fixed a crash when pass the iterable keyword argument to
- sorted().
-
-- bpo-29034: Fix memory leak and use-after-free in os module
- (path_converter).
-
-- bpo-29159: Fix regression in bytes(x) when x.__index__() raises Exception.
-
-- bpo-28932: Do not include <sys/random.h> if it does not exist.
-
-- bpo-25677: Correct the positioning of the syntax error caret for indented
- blocks. Based on patch by Michael Layzell.
-
-- bpo-29000: Fixed bytes formatting of octals with zero padding in alternate
- form.
-
-- bpo-26919: On Android, operating system data is now always encoded/decoded
- to/from UTF-8, instead of the locale encoding to avoid inconsistencies
- with os.fsencode() and os.fsdecode() which are already using UTF-8.
-
-- bpo-28991: functools.lru_cache() was susceptible to an obscure reentrancy
- bug triggerable by a monkey-patched len() function.
-
-- bpo-28739: f-string expressions are no longer accepted as docstrings and
- by ast.literal_eval() even if they do not include expressions.
-
-- bpo-28512: Fixed setting the offset attribute of SyntaxError by
- PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
-
-- bpo-28918: Fix the cross compilation of xxlimited when Python has been
- built with Py_DEBUG defined.
-
-- bpo-28731: Optimize _PyDict_NewPresized() to create correct size dict.
- Improve speed of dict literal with constant keys up to 30%.
-
-Library
--------
-
-- bpo-29169: Update zlib to 1.2.11.
-
-- bpo-29623: Allow use of path-like object as a single argument in
- ConfigParser.read(). Patch by David Ellis.
-
-- bpo-28963: Fix out of bound iteration in
- asyncio.Future.remove_done_callback implemented in C.
-
-- bpo-29704: asyncio.subprocess.SubprocessStreamProtocol no longer closes
- before all pipes are closed.
-
-- bpo-29271: Fix Task.current_task and Task.all_tasks implemented in C to
- accept None argument as their pure Python implementation.
-
-- bpo-29703: Fix asyncio to support instantiation of new event loops in
- child processes.
-
-- bpo-29376: Fix assertion error in threading._DummyThread.is_alive().
-
-- bpo-28624: Add a test that checks that cwd parameter of Popen() accepts
- PathLike objects. Patch by Sayan Chowdhury.
-
-- bpo-28518: Start a transaction implicitly before a DML statement. Patch by
- Aviv Palivoda.
-
-- bpo-29532: Altering a kwarg dictionary passed to functools.partial() no
- longer affects a partial object after creation.
-
-- bpo-29110: Fix file object leak in aifc.open() when file is given as a
- filesystem path and is not in valid AIFF format. Patch by Anthony Zhang.
-
-- bpo-28556: Various updates to typing module: typing.Counter,
- typing.ChainMap, improved ABC caching, etc. Original PRs by Jelle
- Zijlstra, Ivan Levkivskyi, Manuel Krebber, and Łukasz Langa.
-
-- bpo-29100: Fix datetime.fromtimestamp() regression introduced in Python
- 3.6.0: check minimum and maximum years.
-
-- bpo-29519: Fix weakref spewing exceptions during interpreter shutdown when
- used with a rare combination of multiprocessing and custom codecs.
-
-- bpo-29416: Prevent infinite loop in pathlib.Path.mkdir
-
-- bpo-29444: Fixed out-of-bounds buffer access in the group() method of the
- match object. Based on patch by WGH.
-
-- bpo-29335: Fix subprocess.Popen.wait() when the child process has exited
- to a stopped instead of terminated state (ex: when under ptrace).
-
-- bpo-29290: Fix a regression in argparse that help messages would wrap at
- non-breaking spaces.
-
-- bpo-28735: Fixed the comparison of mock.MagickMock with mock.ANY.
-
-- bpo-29316: Restore the provisional status of typing module, add
- corresponding note to documentation. Patch by Ivan L.
-
-- bpo-29219: Fixed infinite recursion in the repr of uninitialized
- ctypes.CDLL instances.
-
-- bpo-29011: Fix an important omission by adding Deque to the typing module.
-
-- bpo-28969: Fixed race condition in C implementation of
- functools.lru_cache. KeyError could be raised when cached function with
- full cache was simultaneously called from different threads with the same
- uncached arguments.
-
-- bpo-29142: In urllib.request, suffixes in no_proxy environment variable
- with leading dots could match related hostnames again (e.g. .b.c matches
- a.b.c). Patch by Milan Oberkirch.
-
-- bpo-28961: Fix unittest.mock._Call helper: don't ignore the name parameter
- anymore. Patch written by Jiajun Huang.
-
-- bpo-29203: functools.lru_cache() now respects :pep:`468` and preserves the
- order of keyword arguments. f(a=1, b=2) is now cached separately from
- f(b=2, a=1) since both calls could potentially give different results.
-
-- bpo-15812: inspect.getframeinfo() now correctly shows the first line of a
- context. Patch by Sam Breese.
-
-- bpo-29094: Offsets in a ZIP file created with extern file object and modes
- "w" and "x" now are relative to the start of the file.
-
-- bpo-29085: Allow random.Random.seed() to use high quality OS randomness
- rather than the pid and time.
-
-- bpo-29061: Fixed bug in secrets.randbelow() which would hang when given a
- negative input. Patch by Brendan Donegan.
-
-- bpo-29079: Prevent infinite loop in pathlib.resolve() on Windows
-
-- bpo-13051: Fixed recursion errors in large or resized
- curses.textpad.Textbox. Based on patch by Tycho Andersen.
-
-- bpo-29119: Fix weakrefs in the pure python version of
- collections.OrderedDict move_to_end() method. Contributed by Andra
- Bogildea.
-
-- bpo-9770: curses.ascii predicates now work correctly with negative
- integers.
-
-- bpo-28427: old keys should not remove new values from WeakValueDictionary
- when collecting from another thread.
-
-- bpo-28923: Remove editor artifacts from Tix.py.
-
-- bpo-29055: Neaten-up empty population error on random.choice() by
- suppressing the upstream exception.
-
-- bpo-28871: Fixed a crash when deallocate deep ElementTree.
-
-- bpo-19542: Fix bugs in WeakValueDictionary.setdefault() and
- WeakValueDictionary.pop() when a GC collection happens in another thread.
-
-- bpo-20191: Fixed a crash in resource.prlimit() when passing a sequence
- that doesn't own its elements as limits.
-
-- bpo-28779: multiprocessing.set_forkserver_preload() would crash the
- forkserver process if a preloaded module instantiated some multiprocessing
- objects such as locks.
-
-- bpo-28847: dbm.dumb now supports reading read-only files and no longer
- writes the index file when it is not changed.
-
-- bpo-26937: The chown() method of the tarfile.TarFile class does not fail
- now when the grp module cannot be imported, as for example on Android
- platforms.
-
-IDLE
-----
-
-- bpo-29071: IDLE colors f-string prefixes (but not invalid ur prefixes).
-
-- bpo-28572: Add 10% to coverage of IDLE's test_configdialog. Update and
- augment description of the configuration system.
-
-Windows
--------
-
-- bpo-29579: Removes readme.txt from the installer
-
-- bpo-29326: Ignores blank lines in ._pth files (Patch by Alexey Izbyshev)
-
-- bpo-28164: Correctly handle special console filenames (patch by Eryk Sun)
-
-- bpo-29409: Implement :pep:`529` for io.FileIO (Patch by Eryk Sun)
-
-- bpo-29392: Prevent crash when passing invalid arguments into msvcrt
- module.
-
-- bpo-25778: winreg does not truncate string correctly (Patch by Eryk Sun)
-
-- bpo-28896: Deprecate WindowsRegistryFinder and disable it by default.
-
-C API
------
-
-- bpo-27867: Function PySlice_GetIndicesEx() is replaced with a macro if
- Py_LIMITED_API is not set or set to the value between 0x03050400 and
- 0x03060000 (not including) or 0x03060100 or higher.
-
-- bpo-29083: Fixed the declaration of some public API functions.
- PyArg_VaParse() and PyArg_VaParseTupleAndKeywords() were not available in
- limited API. PyArg_ValidateKeywordArguments(), PyArg_UnpackTuple() and
- Py_BuildValue() were not available in limited API of version < 3.3 when
- PY_SSIZE_T_CLEAN is defined.
-
-- bpo-29058: All stable API extensions added after Python 3.2 are now
- available only when Py_LIMITED_API is set to the PY_VERSION_HEX value of
- the minimum Python version supporting this API.
-
-Documentation
--------------
-
-- bpo-28929: Link the documentation to its source file on GitHub.
-
-- bpo-25008: Document smtpd.py as effectively deprecated and add a pointer
- to aiosmtpd, a third-party asyncio-based replacement.
-
-- bpo-26355: Add canonical header link on each page to corresponding major
- version of the documentation. Patch by Matthias Bussonnier.
-
-- bpo-29349: Fix Python 2 syntax in code for building the documentation.
-
-Tests
------
-
-- bpo-28087: Skip test_asyncore and test_eintr poll failures on macOS. Skip
- some tests of select.poll when running on macOS due to unresolved issues
- with the underlying system poll function on some macOS versions.
-
-- bpo-29571: to match the behaviour of the ``re.LOCALE`` flag,
- test_re.test_locale_flag now uses ``locale.getpreferredencoding(False)``
- to determine the candidate encoding for the test regex (allowing it to
- correctly skip the test when the default locale encoding is a multi-byte
- encoding)
-
-- bpo-28950: Disallow -j0 to be combined with -T/-l in regrtest command line
- arguments.
-
-- bpo-28683: Fix the tests that bind() a unix socket and raise
- PermissionError on Android for a non-root user.
-
-- bpo-26939: Add the support.setswitchinterval() function to fix
- test_functools hanging on the Android armv7 qemu emulator.
-
-Build
------
-
-- bpo-27593: sys.version and the platform module python_build(),
- python_branch(), and python_revision() functions now use git information
- rather than hg when building from a repo.
-
-- bpo-29572: Update Windows build and OS X installers to use OpenSSL 1.0.2k.
-
-- bpo-26851: Set Android compilation and link flags.
-
-- bpo-28768: Fix implicit declaration of function _setmode. Patch by
- Masayuki Yamamoto
-
-- bpo-29080: Removes hard dependency on hg.exe from PCBuild/build.bat
-
-- bpo-23903: Added missed names to PC/python3.def.
-
-- bpo-28762: lockf() is available on Android API level 24, but the F_LOCK
- macro is not defined in android-ndk-r13.
-
-- bpo-28538: Fix the compilation error that occurs because if_nameindex() is
- available on Android API level 24, but the if_nameindex structure is not
- defined.
-
-- bpo-20211: Do not add the directory for installing C header files and the
- directory for installing object code libraries to the cross compilation
- search paths. Original patch by Thomas Petazzoni.
-
-- bpo-28849: Do not define sys.implementation._multiarch on Android.
-
-
-What's New in Python 3.6.0 final?
-=================================
-
-*Release date: 2016-12-23*
-
-No changes since release candidate 2
-
-
-
-What's New in Python 3.6.0 release candidate 2?
-===============================================
-
-*Release date: 2016-12-16*
-
-Core and Builtins
------------------
-
-- bpo-28147: Fix a memory leak in split-table dictionaries: setattr() must
- not convert combined table into split table. Patch written by INADA Naoki.
-
-- bpo-28990: Fix asyncio SSL hanging if connection is closed before
- handshake is completed. (Patch by HoHo-Ho)
-
-Tools/Demos
------------
-
-- bpo-28770: Fix python-gdb.py for fastcalls.
-
-Windows
--------
-
-- bpo-28896: Deprecate WindowsRegistryFinder.
-
-Build
------
-
-- bpo-28898: Prevent gdb build errors due to HAVE_LONG_LONG redefinition.
-
-
-What's New in Python 3.6.0 release candidate 1?
-===============================================
-
-*Release date: 2016-12-06*
-
-Core and Builtins
------------------
-
-- bpo-23722: Rather than silently producing a class that doesn't support
- zero-argument ``super()`` in methods, failing to pass the new
- ``__classcell__`` namespace entry up to ``type.__new__`` now results in a
- ``DeprecationWarning`` and a class that supports zero-argument
- ``super()``.
-
-- bpo-28797: Modifying the class __dict__ inside the __set_name__ method of
- a descriptor that is used inside that class no longer prevents calling the
- __set_name__ method of other descriptors.
-
-- bpo-28782: Fix a bug in the implementation ``yield from`` when checking if
- the next instruction is YIELD_FROM. Regression introduced by WORDCODE
- (issue #26647).
-
-Library
--------
-
-- bpo-27030: Unknown escapes in re.sub() replacement template are allowed
- again. But they still are deprecated and will be disabled in 3.7.
-
-- bpo-28835: Fix a regression introduced in warnings.catch_warnings(): call
- warnings.showwarning() if it was overridden inside the context manager.
-
-- bpo-27172: To assist with upgrades from 2.7, the previously documented
- deprecation of ``inspect.getfullargspec()`` has been reversed. This
- decision may be revisited again after the Python 2.7 branch is no longer
- officially supported.
-
-- bpo-26273: Add new :data:`socket.TCP_CONGESTION` (Linux 2.6.13) and
- :data:`socket.TCP_USER_TIMEOUT` (Linux 2.6.37) constants. Patch written by
- Omar Sandoval.
-
-- bpo-24142: Reading a corrupt config file left configparser in an invalid
- state. Original patch by Florian Höch.
-
-- bpo-28843: Fix asyncio C Task to handle exceptions __traceback__.
-
-C API
------
-
-- bpo-28808: PyUnicode_CompareWithASCIIString() now never raises exceptions.
-
-Documentation
--------------
-
-- bpo-23722: The data model reference and the porting section in the What's
- New guide now cover the additional ``__classcell__`` handling needed for
- custom metaclasses to fully support :pep:`487` and zero-argument
- ``super()``.
-
-Tools/Demos
------------
-
-- bpo-28023: Fix python-gdb.py didn't support new dict implementation.
-
-
-What's New in Python 3.6.0 beta 4?
-==================================
-
-*Release date: 2016-11-21*
-
-Core and Builtins
------------------
-
-- bpo-28532: Show sys.version when -V option is supplied twice.
-
-- bpo-27100: The with-statement now checks for __enter__ before it checks
- for __exit__. This gives less confusing error messages when both methods
- are missing. Patch by Jonathan Ellington.
-
-- bpo-28746: Fix the set_inheritable() file descriptor method on platforms
- that do not have the ioctl FIOCLEX and FIONCLEX commands.
-
-- bpo-26920: Fix not getting the locale's charset upon initializing the
- interpreter, on platforms that do not have langinfo.
-
-- bpo-28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X
- when decode astral characters. Patch by Xiang Zhang.
-
-- bpo-19398: Extra slash no longer added to sys.path components in case of
- empty compile-time PYTHONPATH components.
-
-- bpo-28665: Improve speed of the STORE_DEREF opcode by 40%.
-
-- bpo-28583: PyDict_SetDefault didn't combine split table when needed. Patch
- by Xiang Zhang.
-
-- bpo-27243: Change PendingDeprecationWarning -> DeprecationWarning. As it
- was agreed in the issue, __aiter__ returning an awaitable should result in
- PendingDeprecationWarning in 3.5 and in DeprecationWarning in 3.6.
-
-- bpo-26182: Fix a refleak in code that raises DeprecationWarning.
-
-- bpo-28721: Fix asynchronous generators aclose() and athrow() to handle
- StopAsyncIteration propagation properly.
-
-Library
--------
-
-- bpo-28752: Restored the __reduce__() methods of datetime objects.
-
-- bpo-28727: Regular expression patterns, _sre.SRE_Pattern objects created
- by re.compile(), become comparable (only x==y and x!=y operators). This
- change should fix the issue #18383: don't duplicate warning filters when
- the warnings module is reloaded (thing usually only done in unit tests).
-
-- bpo-20572: The subprocess.Popen.wait method's undocumented endtime
- parameter now raises a DeprecationWarning.
-
-- bpo-25659: In ctypes, prevent a crash calling the from_buffer() and
- from_buffer_copy() methods on abstract classes like Array.
-
-- bpo-19717: Makes Path.resolve() succeed on paths that do not exist. Patch
- by Vajrasky Kok
-
-- bpo-28563: Fixed possible DoS and arbitrary code execution when handle
- plural form selections in the gettext module. The expression parser now
- supports exact syntax supported by GNU gettext.
-
-- bpo-28387: Fixed possible crash in _io.TextIOWrapper deallocator when the
- garbage collector is invoked in other thread. Based on patch by Sebastian
- Cufre.
-
-- bpo-28600: Optimize loop.call_soon.
-
-- bpo-28613: Fix get_event_loop() return the current loop if called from
- coroutines/callbacks.
-
-- bpo-28634: Fix asyncio.isfuture() to support unittest.Mock.
-
-- bpo-26081: Fix refleak in _asyncio.Future.__iter__().throw.
-
-- bpo-28639: Fix inspect.isawaitable to always return bool Patch by Justin
- Mayfield.
-
-- bpo-28652: Make loop methods reject socket kinds they do not support.
-
-- bpo-28653: Fix a refleak in functools.lru_cache.
-
-- bpo-28703: Fix asyncio.iscoroutinefunction to handle Mock objects.
-
-- bpo-28704: Fix create_unix_server to support Path-like objects (PEP 519).
-
-- bpo-28720: Add collections.abc.AsyncGenerator.
-
-Documentation
--------------
-
-- bpo-28513: Documented command-line interface of zipfile.
-
-Tests
------
-
-- bpo-28666: Now test.support.rmtree is able to remove unwritable or
- unreadable directories.
-
-- bpo-23839: Various caches now are cleared before running every test file.
-
-Build
------
-
-- bpo-10656: Fix out-of-tree building on AIX. Patch by Tristan Carel and
- Michael Haubenwallner.
-
-- bpo-26359: Rename --with-optimiations to --enable-optimizations.
-
-- bpo-28676: Prevent missing 'getentropy' declaration warning on macOS.
- Patch by Gareth Rees.
-
-
-What's New in Python 3.6.0 beta 3?
-==================================
-
-*Release date: 2016-10-31*
-
-Core and Builtins
------------------
-
-- bpo-28128: Deprecation warning for invalid str and byte escape sequences
- now prints better information about where the error occurs. Patch by
- Serhiy Storchaka and Eric Smith.
-
-- bpo-28509: dict.update() no longer allocate unnecessary large memory.
-
-- bpo-28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug
- build.
-
-- bpo-28517: Fixed of-by-one error in the peephole optimizer that caused
- keeping unreachable code.
-
-- bpo-28214: Improved exception reporting for problematic __set_name__
- attributes.
-
-- bpo-23782: Fixed possible memory leak in _PyTraceback_Add() and exception
- loss in PyTraceBack_Here().
-
-- bpo-28471: Fix "Python memory allocator called without holding the GIL"
- crash in socket.setblocking.
-
-Library
--------
-
-- bpo-27517: LZMA compressor and decompressor no longer raise exceptions if
- given empty data twice. Patch by Benjamin Fogle.
-
-- bpo-28549: Fixed segfault in curses's addch() with ncurses6.
-
-- bpo-28449: tarfile.open() with mode "r" or "r:" now tries to open a tar
- file with compression before trying to open it without compression.
- Otherwise it had 50% chance failed with ignore_zeros=True.
-
-- bpo-23262: The webbrowser module now supports Firefox 36+ and derived
- browsers. Based on patch by Oleg Broytman.
-
-- bpo-27939: Fixed bugs in tkinter.ttk.LabeledScale and tkinter.Scale caused
- by representing the scale as float value internally in Tk. tkinter.IntVar
- now works if float value is set to underlying Tk variable.
-
-- bpo-18844: The various ways of specifying weights for random.choices() now
- produce the same result sequences.
-
-- bpo-28255: calendar.TextCalendar().prmonth() no longer prints a space at
- the start of new line after printing a month's calendar. Patch by Xiang
- Zhang.
-
-- bpo-20491: The textwrap.TextWrapper class now honors non-breaking spaces.
- Based on patch by Kaarle Ritvanen.
-
-- bpo-28353: os.fwalk() no longer fails on broken links.
-
-- bpo-28430: Fix iterator of C implemented asyncio.Future doesn't accept
- non-None value is passed to it.send(val).
-
-- bpo-27025: Generated names for Tkinter widgets now start by the "!" prefix
- for readability.
-
-- bpo-25464: Fixed HList.header_exists() in tkinter.tix module by addin a
- workaround to Tix library bug.
-
-- bpo-28488: shutil.make_archive() no longer adds entry "./" to ZIP archive.
-
-- bpo-25953: re.sub() now raises an error for invalid numerical group
- reference in replacement template even if the pattern is not found in the
- string. Error message for invalid group reference now includes the group
- index and the position of the reference. Based on patch by SilentGhost.
-
-- bpo-18219: Optimize csv.DictWriter for large number of columns. Patch by
- Mariatta Wijaya.
-
-- bpo-28448: Fix C implemented asyncio.Future didn't work on Windows.
-
-- bpo-28480: Fix error building socket module when multithreading is
- disabled.
-
-- bpo-24452: Make webbrowser support Chrome on Mac OS X.
-
-- bpo-20766: Fix references leaked by pdb in the handling of SIGINT
- handlers.
-
-- bpo-28492: Fix how StopIteration exception is raised in _asyncio.Future.
-
-- bpo-28500: Fix asyncio to handle async gens GC from another thread.
-
-- bpo-26923: Fix asyncio.Gather to refuse being cancelled once all children
- are done. Patch by Johannes Ebke.
-
-- bpo-26796: Don't configure the number of workers for default threadpool
- executor. Initial patch by Hans Lawrenz.
-
-- bpo-28544: Implement asyncio.Task in C.
-
-Windows
--------
-
-- bpo-28522: Fixes mishandled buffer reallocation in getpathp.c
-
-Build
------
-
-- bpo-28444: Fix missing extensions modules when cross compiling.
-
-- bpo-28208: Update Windows build and OS X installers to use SQLite 3.14.2.
-
-- bpo-28248: Update Windows build and OS X installers to use OpenSSL 1.0.2j.
-
-Tests
------
-
-- bpo-26944: Fix test_posix for Android where 'id -G' is entirely wrong or
- missing the effective gid.
-
-- bpo-28409: regrtest: fix the parser of command line arguments.
-
-
-What's New in Python 3.6.0 beta 2?
-==================================
-
-*Release date: 2016-10-10*
-
-Core and Builtins
------------------
-
-- bpo-28183: Optimize and cleanup dict iteration.
-
-- bpo-26081: Added C implementation of asyncio.Future. Original patch by
- Yury Selivanov.
-
-- bpo-28379: Added sanity checks and tests for PyUnicode_CopyCharacters().
- Patch by Xiang Zhang.
-
-- bpo-28376: The type of long range iterator is now registered as Iterator.
- Patch by Oren Milman.
-
-- bpo-28376: Creating instances of range_iterator by calling range_iterator
- type now is deprecated. Patch by Oren Milman.
-
-- bpo-28376: The constructor of range_iterator now checks that step is not
- 0. Patch by Oren Milman.
-
-- bpo-26906: Resolving special methods of uninitialized type now causes
- implicit initialization of the type instead of a fail.
-
-- bpo-18287: PyType_Ready() now checks that tp_name is not NULL. Original
- patch by Niklas Koep.
-
-- bpo-24098: Fixed possible crash when AST is changed in process of
- compiling it.
-
-- bpo-28201: Dict reduces possibility of 2nd conflict in hash table when
- hashes have same lower bits.
-
-- bpo-28350: String constants with null character no longer interned.
-
-- bpo-26617: Fix crash when GC runs during weakref callbacks.
-
-- bpo-27942: String constants now interned recursively in tuples and
- frozensets.
-
-- bpo-21578: Fixed misleading error message when ImportError called with
- invalid keyword args.
-
-- bpo-28203: Fix incorrect type in complex(1.0, {2:3}) error message. Patch
- by Soumya Sharma.
-
-- bpo-28086: Single var-positional argument of tuple subtype was passed
- unscathed to the C-defined function. Now it is converted to exact tuple.
-
-- bpo-28214: Now __set_name__ is looked up on the class instead of the
- instance.
-
-- bpo-27955: Fallback on reading /dev/urandom device when the getrandom()
- syscall fails with EPERM, for example when blocked by SECCOMP.
-
-- bpo-28192: Don't import readline in isolated mode.
-
-- Upgrade internal unicode databases to Unicode version 9.0.0.
-
-- bpo-28131: Fix a regression in zipimport's compile_source(). zipimport
- should use the same optimization level as the interpreter.
-
-- bpo-28126: Replace Py_MEMCPY with memcpy(). Visual Studio can properly
- optimize memcpy().
-
-- bpo-28120: Fix dict.pop() for splitted dictionary when trying to remove a
- "pending key" (Not yet inserted in split-table). Patch by Xiang Zhang.
-
-- bpo-26182: Raise DeprecationWarning when async and await keywords are used
- as variable/attribute/class/function name.
-
-Library
--------
-
-- bpo-27998: Fixed bytes path support in os.scandir() on Windows. Patch by
- Eryk Sun.
-
-- bpo-28317: The disassembler now decodes FORMAT_VALUE argument.
-
-- bpo-26293: Fixed writing ZIP files that starts not from the start of the
- file. Offsets in ZIP file now are relative to the start of the archive in
- conforming to the specification.
-
-- bpo-28380: unittest.mock Mock autospec functions now properly support
- assert_called, assert_not_called, and assert_called_once.
-
-- bpo-27181: remove statistics.geometric_mean and defer until 3.7.
-
-- bpo-28229: lzma module now supports pathlib.
-
-- bpo-28321: Fixed writing non-BMP characters with binary format in
- plistlib.
-
-- bpo-28225: bz2 module now supports pathlib. Initial patch by Ethan
- Furman.
-
-- bpo-28227: gzip now supports pathlib. Patch by Ethan Furman.
-
-- bpo-27358: Optimized merging var-keyword arguments and improved error
- message when passing a non-mapping as a var-keyword argument.
-
-- bpo-28257: Improved error message when passing a non-iterable as a
- var-positional argument. Added opcode BUILD_TUPLE_UNPACK_WITH_CALL.
-
-- bpo-28322: Fixed possible crashes when unpickle itertools objects from
- incorrect pickle data. Based on patch by John Leitch.
-
-- bpo-28228: imghdr now supports pathlib.
-
-- bpo-28226: compileall now supports pathlib.
-
-- bpo-28314: Fix function declaration (C flags) for the getiterator() method
- of xml.etree.ElementTree.Element.
-
-- bpo-28148: Stop using localtime() and gmtime() in the time module.
- Introduced platform independent _PyTime_localtime API that is similar to
- POSIX localtime_r, but available on all platforms. Patch by Ed Schouten.
-
-- bpo-28253: Fixed calendar functions for extreme months: 0001-01 and
- 9999-12. Methods itermonthdays() and itermonthdays2() are reimplemented so
- that they don't call itermonthdates() which can cause datetime.date
- under/overflow.
-
-- bpo-28275: Fixed possible use after free in the decompress() methods of
- the LZMADecompressor and BZ2Decompressor classes. Original patch by John
- Leitch.
-
-- bpo-27897: Fixed possible crash in sqlite3.Connection.create_collation()
- if pass invalid string-like object as a name. Patch by Xiang Zhang.
-
-- bpo-18844: random.choices() now has k as a keyword-only argument to
- improve the readability of common cases and come into line with the
- signature used in other languages.
-
-- bpo-18893: Fix invalid exception handling in Lib/ctypes/macholib/dyld.py.
- Patch by Madison May.
-
-- bpo-27611: Fixed support of default root window in the tkinter.tix module.
- Added the master parameter in the DisplayStyle constructor.
-
-- bpo-27348: In the traceback module, restore the formatting of exception
- messages like "Exception: None". This fixes a regression introduced in
- 3.5a2.
-
-- bpo-25651: Allow falsy values to be used for msg parameter of subTest().
-
-- bpo-27778: Fix a memory leak in os.getrandom() when the getrandom() is
- interrupted by a signal and a signal handler raises a Python exception.
-
-- bpo-28200: Fix memory leak on Windows in the os module (fix
- path_converter() function).
-
-- bpo-25400: RobotFileParser now correctly returns default values for
- crawl_delay and request_rate. Initial patch by Peter Wirtz.
-
-- bpo-27932: Prevent memory leak in win32_ver().
-
-- Fix UnboundLocalError in socket._sendfile_use_sendfile.
-
-- bpo-28075: Check for ERROR_ACCESS_DENIED in Windows implementation of
- os.stat(). Patch by Eryk Sun.
-
-- bpo-22493: Warning message emitted by using inline flags in the middle of
- regular expression now contains a (truncated) regex pattern. Patch by Tim
- Graham.
-
-- bpo-25270: Prevent codecs.escape_encode() from raising SystemError when an
- empty bytestring is passed.
-
-- bpo-28181: Get antigravity over HTTPS. Patch by Kaartic Sivaraam.
-
-- bpo-25895: Enable WebSocket URL schemes in urllib.parse.urljoin. Patch by
- Gergely Imreh and Markus Holtermann.
-
-- bpo-28114: Fix a crash in parse_envlist() when env contains byte strings.
- Patch by Eryk Sun.
-
-- bpo-27599: Fixed buffer overrun in binascii.b2a_qp() and
- binascii.a2b_qp().
-
-- bpo-27906: Fix socket accept exhaustion during high TCP traffic. Patch by
- Kevin Conway.
-
-- bpo-28174: Handle when SO_REUSEPORT isn't properly supported. Patch by
- Seth Michael Larson.
-
-- bpo-26654: Inspect functools.partial in asyncio.Handle.__repr__. Patch by
- iceboy.
-
-- bpo-26909: Fix slow pipes IO in asyncio. Patch by INADA Naoki.
-
-- bpo-28176: Fix callbacks race in asyncio.SelectorLoop.sock_connect.
-
-- bpo-27759: Fix selectors incorrectly retain invalid file descriptors.
- Patch by Mark Williams.
-
-- bpo-28368: Refuse monitoring processes if the child watcher has no loop
- attached. Patch by Vincent Michel.
-
-- bpo-28369: Raise RuntimeError when transport's FD is used with add_reader,
- add_writer, etc.
-
-- bpo-28370: Speedup asyncio.StreamReader.readexactly. Patch by Коренберг
- Марк.
-
-- bpo-28371: Deprecate passing asyncio.Handles to run_in_executor.
-
-- bpo-28372: Fix asyncio to support formatting of non-python coroutines.
-
-- bpo-28399: Remove UNIX socket from FS before binding. Patch by Коренберг
- Марк.
-
-- bpo-27972: Prohibit Tasks to await on themselves.
-
-Windows
--------
-
-- bpo-28402: Adds signed catalog files for stdlib on Windows.
-
-- bpo-28333: Enables Unicode for ps1/ps2 and input() prompts. (Patch by Eryk
- Sun)
-
-- bpo-28251: Improvements to help manuals on Windows.
-
-- bpo-28110: launcher.msi has different product codes between 32-bit and
- 64-bit
-
-- bpo-28161: Opening CON for write access fails
-
-- bpo-28162: WindowsConsoleIO readall() fails if first line starts with
- Ctrl+Z
-
-- bpo-28163: WindowsConsoleIO fileno() passes wrong flags to _open_osfhandle
-
-- bpo-28164: _PyIO_get_console_type fails for various paths
-
-- bpo-28137: Renames Windows path file to ._pth
-
-- bpo-28138: Windows ._pth file should allow import site
-
-C API
------
-
-- bpo-28426: Deprecated undocumented functions PyUnicode_AsEncodedObject(),
- PyUnicode_AsDecodedObject(), PyUnicode_AsDecodedUnicode() and
- PyUnicode_AsEncodedUnicode().
-
-Build
------
-
-- bpo-28258: Fixed build with Estonian locale (python-config and distclean
- targets in Makefile). Patch by Arfrever Frehtes Taifersar Arahesis.
-
-- bpo-26661: setup.py now detects system libffi with multiarch wrapper.
-
-- bpo-15819: Remove redundant include search directory option for building
- outside the source tree.
-
-Tests
------
-
-- bpo-28217: Adds _testconsole module to test console input.
-
-
-What's New in Python 3.6.0 beta 1?
-==================================
-
-*Release date: 2016-09-12*
-
-Core and Builtins
------------------
-
-- bpo-23722: The __class__ cell used by zero-argument super() is now
- initialized from type.__new__ rather than __build_class__, so class
- methods relying on that will now work correctly when called from metaclass
- methods during class creation. Patch by Martin Teichmann.
-
-- bpo-25221: Fix corrupted result from PyLong_FromLong(0) when Python is
- compiled with NSMALLPOSINTS = 0.
-
-- bpo-27080: Implement formatting support for :pep:`515`. Initial patch by
- Chris Angelico.
-
-- bpo-27199: In tarfile, expose copyfileobj bufsize to improve throughput.
- Patch by Jason Fried.
-
-- bpo-27948: In f-strings, only allow backslashes inside the braces (where
- the expressions are). This is a breaking change from the 3.6 alpha
- releases, where backslashes are allowed anywhere in an f-string. Also,
- require that expressions inside f-strings be enclosed within literal
- braces, and not escapes like ``f'\x7b"hi"\x7d'``.
-
-- bpo-28046: Remove platform-specific directories from sys.path.
-
-- bpo-28071: Add early-out for differencing from an empty set.
-
-- bpo-25758: Prevents zipimport from unnecessarily encoding a filename
- (patch by Eryk Sun)
-
-- bpo-25856: The __module__ attribute of extension classes and functions now
- is interned. This leads to more compact pickle data with protocol 4.
-
-- bpo-27213: Rework CALL_FUNCTION* opcodes to produce shorter and more
- efficient bytecode. Patch by Demur Rumed, design by Serhiy Storchaka,
- reviewed by Serhiy Storchaka and Victor Stinner.
-
-- bpo-26331: Implement tokenizing support for :pep:`515`. Patch by Georg
- Brandl.
-
-- bpo-27999: Make "global after use" a SyntaxError, and ditto for nonlocal.
- Patch by Ivan Levkivskyi.
-
-- bpo-28003: Implement :pep:`525` -- Asynchronous Generators.
-
-- bpo-27985: Implement :pep:`526` -- Syntax for Variable Annotations. Patch
- by Ivan Levkivskyi.
-
-- bpo-26058: Add a new private version to the builtin dict type, incremented
- at each dictionary creation and at each dictionary change. Implementation
- of the PEP 509.
-
-- bpo-27364: A backslash-character pair that is not a valid escape sequence
- now generates a DeprecationWarning. Patch by Emanuel Barry.
-
-- bpo-27350: `dict` implementation is changed like PyPy. It is more compact
- and preserves insertion order. (Concept developed by Raymond Hettinger and
- patch by Inada Naoki.)
-
-- bpo-27911: Remove unnecessary error checks in
- ``exec_builtin_or_dynamic()``.
-
-- bpo-27078: Added BUILD_STRING opcode. Optimized f-strings evaluation.
-
-- bpo-17884: Python now requires systems with inttypes.h and stdint.h
-
-- bpo-27961: Require platforms to support ``long long``. Python hasn't
- compiled without ``long long`` for years, so this is basically a
- formality.
-
-- bpo-27355: Removed support for Windows CE. It was never finished, and
- Windows CE is no longer a relevant platform for Python.
-
-- Implement :pep:`523`.
-
-- bpo-27870: A left shift of zero by a large integer no longer attempts to
- allocate large amounts of memory.
-
-- bpo-25402: In int-to-decimal-string conversion, improve the estimate of
- the intermediate memory required, and remove an unnecessarily strict
- overflow check. Patch by Serhiy Storchaka.
-
-- bpo-27214: In long_invert, be more careful about modifying object returned
- by long_add, and remove an unnecessary check for small longs. Thanks Oren
- Milman for analysis and patch.
-
-- bpo-27506: Support passing the bytes/bytearray.translate() "delete"
- argument by keyword.
-
-- bpo-27812: Properly clear out a generator's frame's backreference to the
- generator to prevent crashes in frame.clear().
-
-- bpo-27811: Fix a crash when a coroutine that has not been awaited is
- finalized with warnings-as-errors enabled.
-
-- bpo-27587: Fix another issue found by PVS-Studio: Null pointer check after
- use of 'def' in _PyState_AddModule(). Initial patch by Christian Heimes.
-
-- bpo-27792: The modulo operation applied to ``bool`` and other ``int``
- subclasses now always returns an ``int``. Previously the return type
- depended on the input values. Patch by Xiang Zhang.
-
-- bpo-26984: int() now always returns an instance of exact int.
-
-- bpo-25604: Fix a minor bug in integer true division; this bug could
- potentially have caused off-by-one-ulp results on platforms with
- unreliable ldexp implementations.
-
-- bpo-24254: Make class definition namespace ordered by default.
-
-- bpo-27662: Fix an overflow check in ``List_New``: the original code was
- checking against ``Py_SIZE_MAX`` instead of the correct upper bound of
- ``Py_SSIZE_T_MAX``. Patch by Xiang Zhang.
-
-- bpo-27782: Multi-phase extension module import now correctly allows the
- ``m_methods`` field to be used to add module level functions to instances
- of non-module types returned from ``Py_create_mod``. Patch by Xiang Zhang.
-
-- bpo-27936: The round() function accepted a second None argument for some
- types but not for others. Fixed the inconsistency by accepting None for
- all numeric types.
-
-- bpo-27487: Warn if a submodule argument to "python -m" or
- runpy.run_module() is found in sys.modules after parent packages are
- imported, but before the submodule is executed.
-
-- bpo-27157: Make only type() itself accept the one-argument form. Patch by
- Eryk Sun and Emanuel Barry.
-
-- bpo-27558: Fix a SystemError in the implementation of "raise" statement.
- In a brand new thread, raise a RuntimeError since there is no active
- exception to reraise. Patch written by Xiang Zhang.
-
-- bpo-28008: Implement :pep:`530` -- asynchronous comprehensions.
-
-- bpo-27942: Fix memory leak in codeobject.c
-
-Library
--------
-
-- bpo-28732: Fix crash in os.spawnv() with no elements in args
-
-- bpo-28485: Always raise ValueError for negative
- compileall.compile_dir(workers=...) parameter, even when multithreading is
- unavailable.
-
-- bpo-28037: Use sqlite3_get_autocommit() instead of setting
- Connection->inTransaction manually.
-
-- bpo-25283: Attributes tm_gmtoff and tm_zone are now available on all
- platforms in the return values of time.localtime() and time.gmtime().
-
-- bpo-24454: Regular expression match object groups are now accessible using
- __getitem__. "mo[x]" is equivalent to "mo.group(x)".
-
-- bpo-10740: sqlite3 no longer implicitly commit an open transaction before
- DDL statements.
-
-- bpo-17941: Add a *module* parameter to collections.namedtuple().
-
-- bpo-22493: Inline flags now should be used only at the start of the
- regular expression. Deprecation warning is emitted if uses them in the
- middle of the regular expression.
-
-- bpo-26885: xmlrpc now supports unmarshalling additional data types used by
- Apache XML-RPC implementation for numerics and None.
-
-- bpo-28070: Fixed parsing inline verbose flag in regular expressions.
-
-- bpo-19500: Add client-side SSL session resumption to the ssl module.
-
-- bpo-28022: Deprecate ssl-related arguments in favor of SSLContext. The
- deprecation include manual creation of SSLSocket and certfile/keyfile (or
- similar) in ftplib, httplib, imaplib, smtplib, poplib and urllib.
-
-- bpo-28043: SSLContext has improved default settings: OP_NO_SSLv2,
- OP_NO_SSLv3, OP_NO_COMPRESSION, OP_CIPHER_SERVER_PREFERENCE,
- OP_SINGLE_DH_USE, OP_SINGLE_ECDH_USE and HIGH ciphers without MD5.
-
-- bpo-24693: Changed some RuntimeError's in the zipfile module to more
- appropriate types. Improved some error messages and debugging output.
-
-- bpo-17909: ``json.load`` and ``json.loads`` now support binary input
- encoded as UTF-8, UTF-16 or UTF-32. Patch by Serhiy Storchaka.
-
-- bpo-27137: the pure Python fallback implementation of
- ``functools.partial`` now matches the behaviour of its accelerated C
- counterpart for subclassing, pickling and text representation purposes.
- Patch by Emanuel Barry and Serhiy Storchaka.
-
-- Fix possible integer overflows and crashes in the mmap module with unusual
- usage patterns.
-
-- bpo-1703178: Fix the ability to pass the --link-objects option to the
- distutils build_ext command.
-
-- bpo-28019: itertools.count() no longer rounds non-integer step in range
- between 1.0 and 2.0 to 1.
-
-- bpo-18401: Pdb now supports the 'readrc' keyword argument to control
- whether .pdbrc files should be read. Patch by Martin Matusiak and Sam
- Kimbrel.
-
-- bpo-25969: Update the lib2to3 grammar to handle the unpacking
- generalizations added in 3.5.
-
-- bpo-14977: mailcap now respects the order of the lines in the mailcap
- files ("first match"), as required by RFC 1542. Patch by Michael Lazar.
-
-- bpo-28082: Convert re flag constants to IntFlag.
-
-- bpo-28025: Convert all ssl module constants to IntEnum and IntFlags.
- SSLContext properties now return flags and enums.
-
-- bpo-23591: Add Flag, IntFlag, and auto() to enum module.
-
-- bpo-433028: Added support of modifier spans in regular expressions.
-
-- bpo-24594: Validates persist parameter when opening MSI database
-
-- bpo-17582: xml.etree.ElementTree nows preserves whitespaces in attributes
- (Patch by Duane Griffin. Reviewed and approved by Stefan Behnel.)
-
-- bpo-28047: Fixed calculation of line length used for the base64 CTE in the
- new email policies.
-
-- bpo-27576: Fix call order in OrderedDict.__init__().
-
-- email.generator.DecodedGenerator now supports the policy keyword.
-
-- bpo-28027: Remove undocumented modules from ``Lib/plat-*``: IN, CDROM,
- DLFCN, TYPES, CDIO, and STROPTS.
-
-- bpo-27445: Don't pass str(_charset) to MIMEText.set_payload(). Patch by
- Claude Paroz.
-
-- bpo-24277: The new email API is no longer provisional, and the docs have
- been reorganized and rewritten to emphasize the new API.
-
-- bpo-22450: urllib now includes an ``Accept: */*`` header among the default
- headers. This makes the results of REST API requests more consistent and
- predictable especially when proxy servers are involved.
-
-- lib2to3.pgen3.driver.load_grammar() now creates a stable cache file
- between runs given the same Grammar.txt input regardless of the hash
- randomization setting.
-
-- bpo-28005: Allow ImportErrors in encoding implementation to propagate.
-
-- bpo-26667: Support path-like objects in importlib.util.
-
-- bpo-27570: Avoid zero-length memcpy() etc calls with null source pointers
- in the "ctypes" and "array" modules.
-
-- bpo-22233: Break email header lines *only* on the RFC specified CR and LF
- characters, not on arbitrary unicode line breaks. This also fixes a bug
- in HTTP header parsing.
-
-- bpo-27331: The email.mime classes now all accept an optional policy
- keyword.
-
-- bpo-27988: Fix email iter_attachments incorrect mutation of payload list.
-
-- bpo-16113: Add SHA-3 and SHAKE support to hashlib module.
-
-- Eliminate a tautological-pointer-compare warning in _scproxy.c.
-
-- bpo-27776: The :func:`os.urandom` function does now block on Linux 3.17
- and newer until the system urandom entropy pool is initialized to increase
- the security. This change is part of the :pep:`524`.
-
-- bpo-27778: Expose the Linux ``getrandom()`` syscall as a new
- :func:`os.getrandom` function. This change is part of the :pep:`524`.
-
-- bpo-27691: Fix ssl module's parsing of GEN_RID subject alternative name
- fields in X.509 certs.
-
-- bpo-18844: Add random.choices().
-
-- bpo-25761: Improved error reporting about truncated pickle data in C
- implementation of unpickler. UnpicklingError is now raised instead of
- AttributeError and ValueError in some cases.
-
-- bpo-26798: Add BLAKE2 (blake2b and blake2s) to hashlib.
-
-- bpo-26032: Optimized globbing in pathlib by using os.scandir(); it is now
- about 1.5--4 times faster.
-
-- bpo-25596: Optimized glob() and iglob() functions in the glob module; they
- are now about 3--6 times faster.
-
-- bpo-27928: Add scrypt (password-based key derivation function) to hashlib
- module (requires OpenSSL 1.1.0).
-
-- bpo-27850: Remove 3DES from ssl module's default cipher list to counter
- measure sweet32 attack (CVE-2016-2183).
-
-- bpo-27766: Add ChaCha20 Poly1305 to ssl module's default cipher list.
- (Required OpenSSL 1.1.0 or LibreSSL).
-
-- bpo-25387: Check return value of winsound.MessageBeep.
-
-- bpo-27866: Add SSLContext.get_ciphers() method to get a list of all
- enabled ciphers.
-
-- bpo-27744: Add AF_ALG (Linux Kernel crypto) to socket module.
-
-- bpo-26470: Port ssl and hashlib module to OpenSSL 1.1.0.
-
-- bpo-11620: Fix support for SND_MEMORY in winsound.PlaySound. Based on a
- patch by Tim Lesher.
-
-- bpo-11734: Add support for IEEE 754 half-precision floats to the struct
- module. Based on a patch by Eli Stevens.
-
-- bpo-27919: Deprecated ``extra_path`` distribution option in distutils
- packaging.
-
-- bpo-23229: Add new ``cmath`` constants: ``cmath.inf`` and ``cmath.nan`` to
- match ``math.inf`` and ``math.nan``, and also ``cmath.infj`` and
- ``cmath.nanj`` to match the format used by complex repr.
-
-- bpo-27842: The csv.DictReader now returns rows of type OrderedDict.
- (Contributed by Steve Holden.)
-
-- Remove support for passing a file descriptor to os.access. It never worked
- but previously didn't raise.
-
-- bpo-12885: Fix error when distutils encounters symlink.
-
-- bpo-27881: Fixed possible bugs when setting
- sqlite3.Connection.isolation_level. Based on patch by Xiang Zhang.
-
-- bpo-27861: Fixed a crash in sqlite3.Connection.cursor() when a factory
- creates not a cursor. Patch by Xiang Zhang.
-
-- bpo-19884: Avoid spurious output on OS X with Gnu Readline.
-
-- bpo-27706: Restore deterministic behavior of random.Random().seed() for
- string seeds using seeding version 1. Allows sequences of calls to
- random() to exactly match those obtained in Python 2. Patch by Nofar
- Schnider.
-
-- bpo-10513: Fix a regression in Connection.commit(). Statements should not
- be reset after a commit.
-
-- bpo-12319: Chunked transfer encoding support added to
- http.client.HTTPConnection requests. The
- urllib.request.AbstractHTTPHandler class does not enforce a Content-Length
- header any more. If a HTTP request has a file or iterable body, but no
- Content-Length header, the library now falls back to use chunked
- transfer-encoding.
-
-- A new version of typing.py from https://github.com/python/typing: -
- Collection (only for 3.6) (Issue #27598) - Add FrozenSet to __all__
- (upstream #261) - fix crash in _get_type_vars() (upstream #259) - Remove
- the dict constraint in ForwardRef._eval_type (upstream #252)
-
-- bpo-27832: Make ``_normalize`` parameter to ``Fraction`` constructor
- keyword-only, so that ``Fraction(2, 3, 4)`` now raises ``TypeError``.
-
-- bpo-27539: Fix unnormalised ``Fraction.__pow__`` result in the case of
- negative exponent and negative base.
-
-- bpo-21718: cursor.description is now available for queries using CTEs.
-
-- bpo-27819: In distutils sdists, simply produce the "gztar" (gzipped tar
- format) distributions on all platforms unless "formats" is supplied.
-
-- bpo-2466: posixpath.ismount now correctly recognizes mount points which
- the user does not have permission to access.
-
-- bpo-9998: On Linux, ctypes.util.find_library now looks in LD_LIBRARY_PATH
- for shared libraries.
-
-- bpo-27573: exit message for code.interact is now configurable.
-
-- bpo-27930: Improved behaviour of logging.handlers.QueueListener. Thanks to
- Paulo Andrade and Petr Viktorin for the analysis and patch.
-
-- bpo-6766: Distributed reference counting added to multiprocessing to
- support nesting of shared values / proxy objects.
-
-- bpo-21201: Improves readability of multiprocessing error message. Thanks
- to Wojciech Walczak for patch.
-
-- asyncio: Add set_protocol / get_protocol to Transports.
-
-- bpo-27456: asyncio: Set TCP_NODELAY by default.
-
-IDLE
-----
-
-- bpo-15308: Add 'interrupt execution' (^C) to Shell menu. Patch by Roger
- Serwy, updated by Bayard Randel.
-
-- bpo-27922: Stop IDLE tests from 'flashing' gui widgets on the screen.
-
-- bpo-27891: Consistently group and sort imports within idlelib modules.
-
-- bpo-17642: add larger font sizes for classroom projection.
-
-- Add version to title of IDLE help window.
-
-- bpo-25564: In section on IDLE -- console differences, mention that using
- exec means that __builtins__ is defined for each statement.
-
-- bpo-27821: Fix 3.6.0a3 regression that prevented custom key sets from
- being selected when no custom theme was defined.
-
-C API
------
-
-- bpo-26900: Excluded underscored names and other private API from limited
- API.
-
-- bpo-26027: Add support for path-like objects in PyUnicode_FSConverter() &
- PyUnicode_FSDecoder().
-
-Tests
------
-
-- bpo-27427: Additional tests for the math module. Patch by Francisco Couzo.
-
-- bpo-27953: Skip math and cmath tests that fail on OS X 10.4 due to a poor
- libm implementation of tan.
-
-- bpo-26040: Improve test_math and test_cmath coverage and rigour. Patch by
- Jeff Allen.
-
-- bpo-27787: Call gc.collect() before checking each test for "dangling
- threads", since the dangling threads are weak references.
-
-Build
------
-
-- bpo-27566: Fix clean target in freeze makefile (patch by Lisa Roach)
-
-- bpo-27705: Update message in validate_ucrtbase.py
-
-- bpo-27976: Deprecate building _ctypes with the bundled copy of libffi on
- non-OSX UNIX platforms.
-
-- bpo-27983: Cause lack of llvm-profdata tool when using clang as required
- for PGO linking to be a configure time error rather than make time when
- ``--with-optimizations`` is enabled. Also improve our ability to find the
- llvm-profdata tool on MacOS and some Linuxes.
-
-- bpo-21590: Support for DTrace and SystemTap probes.
-
-- bpo-26307: The profile-opt build now applies PGO to the built-in modules.
-
-- bpo-26359: Add the --with-optimizations flag to turn on LTO and PGO build
- support when available.
-
-- bpo-27917: Set platform triplets for Android builds.
-
-- bpo-25825: Update references to the $(LIBPL) installation path on AIX.
- This path was changed in 3.2a4.
-
-- Update OS X installer to use SQLite 3.14.1 and XZ 5.2.2.
-
-- bpo-21122: Fix LTO builds on OS X.
-
-- bpo-17128: Build OS X installer with a private copy of OpenSSL. Also
- provide a sample Install Certificates command script to install a set of
- root certificates from the third-party certifi module.
-
-Tools/Demos
------------
-
-- bpo-27952: Get Tools/scripts/fixcid.py working with Python 3 and the
- current "re" module, avoid invalid Python backslash escapes, and fix a bug
- parsing escaped C quote signs.
-
-Windows
--------
-
-- bpo-28065: Update xz dependency to 5.2.2 and build it from source.
-
-- bpo-25144: Ensures TargetDir is set before continuing with custom install.
-
-- bpo-1602: Windows console doesn't input or print Unicode (PEP 528)
-
-- bpo-27781: Change file system encoding on Windows to UTF-8 (PEP 529)
-
-- bpo-27731: Opt-out of MAX_PATH on Windows 10
-
-- bpo-6135: Adds encoding and errors parameters to subprocess.
-
-- bpo-27959: Adds oem encoding, alias ansi to mbcs, move aliasmbcs to codec
- lookup.
-
-- bpo-27982: The functions of the winsound module now accept keyword
- arguments.
-
-- bpo-20366: Build full text search support into SQLite on Windows.
-
-- bpo-27756: Adds new icons for Python files and processes on Windows.
- Designs by Cherry Wang.
-
-- bpo-27883: Update sqlite to 3.14.1.0 on Windows.
-
-
-What's New in Python 3.6.0 alpha 4?
-===================================
-
-*Release date: 2016-08-15*
-
-Core and Builtins
------------------
-
-- bpo-27704: Optimized creating bytes and bytearray from byte-like objects
- and iterables. Speed up to 3 times for short objects. Original patch by
- Naoki Inada.
-
-- bpo-26823: Large sections of repeated lines in tracebacks are now
- abbreviated as "[Previous line repeated {count} more times]" by the
- builtin traceback rendering. Patch by Emanuel Barry.
-
-- bpo-27574: Decreased an overhead of parsing keyword arguments in functions
- implemented with using Argument Clinic.
-
-- bpo-22557: Now importing already imported modules is up to 2.5 times
- faster.
-
-- bpo-17596: Include <wincrypt.h> to help with Min GW building.
-
-- bpo-17599: On Windows, rename the privately defined REPARSE_DATA_BUFFER
- structure to avoid conflicting with the definition from Min GW.
-
-- bpo-27507: Add integer overflow check in bytearray.extend(). Patch by
- Xiang Zhang.
-
-- bpo-27581: Don't rely on wrapping for overflow check in
- PySequence_Tuple(). Patch by Xiang Zhang.
-
-- bpo-1621: Avoid signed integer overflow in list and tuple operations.
- Patch by Xiang Zhang.
-
-- bpo-27419: Standard __import__() no longer look up "__import__" in globals
- or builtins for importing submodules or "from import". Fixed a crash if
- raise a warning about unabling to resolve package from __spec__ or
- __package__.
-
-- bpo-27083: Respect the PYTHONCASEOK environment variable under Windows.
-
-- bpo-27514: Make having too many statically nested blocks a SyntaxError
- instead of SystemError.
-
-- bpo-27366: Implemented :pep:`487` (Simpler customization of class
- creation). Upon subclassing, the __init_subclass__ classmethod is called
- on the base class. Descriptors are initialized with __set_name__ after
- class creation.
-
-Library
--------
-
-- bpo-26027: Add :pep:`519`/__fspath__() support to the os and os.path
- modules. Includes code from Jelle Zijlstra. (See also: bpo-27524)
-
-- bpo-27598: Add Collections to collections.abc. Patch by Ivan Levkivskyi,
- docs by Neil Girdhar.
-
-- bpo-25958: Support "anti-registration" of special methods from various
- ABCs, like __hash__, __iter__ or __len__. All these (and several more)
- can be set to None in an implementation class and the behavior will be as
- if the method is not defined at all. (Previously, this mechanism existed
- only for __hash__, to make mutable classes unhashable.) Code contributed
- by Andrew Barnert and Ivan Levkivskyi.
-
-- bpo-16764: Support keyword arguments to zlib.decompress(). Patch by Xiang
- Zhang.
-
-- bpo-27736: Prevent segfault after interpreter re-initialization due to ref
- count problem introduced in code for Issue #27038 in 3.6.0a3. Patch by
- Xiang Zhang.
-
-- bpo-25628: The *verbose* and *rename* parameters for
- collections.namedtuple are now keyword-only.
-
-- bpo-12345: Add mathematical constant tau to math and cmath. See also
- :pep:`628`.
-
-- bpo-26823: traceback.StackSummary.format now abbreviates large sections of
- repeated lines as "[Previous line repeated {count} more times]" (this
- change then further affects other traceback display operations in the
- module). Patch by Emanuel Barry.
-
-- bpo-27664: Add to concurrent.futures.thread.ThreadPoolExecutor() the
- ability to specify a thread name prefix.
-
-- bpo-27181: Add geometric_mean and harmonic_mean to statistics module.
-
-- bpo-27573: code.interact now prints an message when exiting.
-
-- bpo-6422: Add autorange method to timeit.Timer objects.
-
-- bpo-27773: Correct some memory management errors server_hostname in
- _ssl.wrap_socket().
-
-- bpo-26750: unittest.mock.create_autospec() now works properly for
- subclasses of property() and other data descriptors. Removes the never
- publicly used, never documented unittest.mock.DescriptorTypes tuple.
-
-- bpo-26754: Undocumented support of general bytes-like objects as path in
- compile() and similar functions is now deprecated.
-
-- bpo-26800: Undocumented support of general bytes-like objects as paths in
- os functions is now deprecated.
-
-- bpo-26981: Add _order_ compatibility shim to enum.Enum for Python 2/3 code
- bases.
-
-- bpo-27661: Added tzinfo keyword argument to datetime.combine.
-
-- In the curses module, raise an error if window.getstr() or window.instr()
- is passed a negative value.
-
-- bpo-27783: Fix possible usage of uninitialized memory in
- operator.methodcaller.
-
-- bpo-27774: Fix possible Py_DECREF on unowned object in _sre.
-
-- bpo-27760: Fix possible integer overflow in binascii.b2a_qp.
-
-- bpo-27758: Fix possible integer overflow in the _csv module for large
- record lengths.
-
-- bpo-27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the
- HTTP_PROXY variable when REQUEST_METHOD environment is set, which
- indicates that the script is in CGI mode.
-
-- bpo-7063: Remove dead code from the "array" module's slice handling. Patch
- by Chuck.
-
-- bpo-27656: Do not assume sched.h defines any SCHED_* constants.
-
-- bpo-27130: In the "zlib" module, fix handling of large buffers (typically
- 4 GiB) when compressing and decompressing. Previously, inputs were
- limited to 4 GiB, and compression and decompression operations did not
- properly handle results of 4 GiB.
-
-- bpo-24773: Implemented :pep:`495` (Local Time Disambiguation).
-
-- Expose the EPOLLEXCLUSIVE constant (when it is defined) in the select
- module.
-
-- bpo-27567: Expose the EPOLLRDHUP and POLLRDHUP constants in the select
- module.
-
-- bpo-1621: Avoid signed int negation overflow in the "audioop" module.
-
-- bpo-27533: Release GIL in nt._isdir
-
-- bpo-17711: Fixed unpickling by the persistent ID with protocol 0. Original
- patch by Alexandre Vassalotti.
-
-- bpo-27522: Avoid an unintentional reference cycle in email.feedparser.
-
-- bpo-27512: Fix a segfault when os.fspath() called an __fspath__() method
- that raised an exception. Patch by Xiang Zhang.
-
-IDLE
-----
-
-- bpo-27714: text_textview and test_autocomplete now pass when re-run in the
- same process. This occurs when test_idle fails when run with the -w
- option but without -jn. Fix warning from test_config.
-
-- bpo-27621: Put query response validation error messages in the query box
- itself instead of in a separate messagebox. Redo tests to match. Add Mac
- OSX refinements. Original patch by Mark Roseman.
-
-- bpo-27620: Escape key now closes Query box as cancelled.
-
-- bpo-27609: IDLE: tab after initial whitespace should tab, not
- autocomplete. This fixes problem with writing docstrings at least twice
- indented.
-
-- bpo-27609: Explicitly return None when there are also non-None returns. In
- a few cases, reverse a condition and eliminate a return.
-
-- bpo-25507: IDLE no longer runs buggy code because of its tkinter imports.
- Users must include the same imports required to run directly in Python.
-
-- bpo-27173: Add 'IDLE Modern Unix' to the built-in key sets. Make the
- default key set depend on the platform. Add tests for the changes to the
- config module.
-
-- bpo-27452: add line counter and crc to IDLE configHandler test dump.
-
-Tests
------
-
-- bpo-25805: Skip a test in test_pkgutil as needed that doesn't work when
- ``__name__ == __main__``. Patch by SilentGhost.
-
-- bpo-27472: Add test.support.unix_shell as the path to the default shell.
-
-- bpo-27369: In test_pyexpat, avoid testing an error message detail that
- changed in Expat 2.2.0.
-
-- bpo-27594: Prevent assertion error when running test_ast with coverage
- enabled: ensure code object has a valid first line number. Patch suggested
- by Ivan Levkivskyi.
-
-Windows
--------
-
-- bpo-27647: Update bundled Tcl/Tk to 8.6.6.
-
-- bpo-27610: Adds :pep:`514` metadata to Windows installer
-
-- bpo-27469: Adds a shell extension to the launcher so that drag and drop
- works correctly.
-
-- bpo-27309: Enables proper Windows styles in python[w].exe manifest.
-
-Build
------
-
-- bpo-27713: Suppress spurious build warnings when updating importlib's
- bootstrap files. Patch by Xiang Zhang
-
-- bpo-25825: Correct the references to Modules/python.exp, which is required
- on AIX. The references were accidentally changed in 3.5.0a1.
-
-- bpo-27453: CPP invocation in configure must use CPPFLAGS. Patch by Chi
- Hsuan Yen.
-
-- bpo-27641: The configure script now inserts comments into the makefile to
- prevent the pgen and _freeze_importlib executables from being
- cross-compiled.
-
-- bpo-26662: Set PYTHON_FOR_GEN in configure as the Python program to be
- used for file generation during the build.
-
-- bpo-10910: Avoid C++ compilation errors on FreeBSD and OS X. Also update
- FreedBSD version checks for the original ctype UTF-8 workaround.
-
-
-What's New in Python 3.6.0 alpha 3?
-===================================
-
-*Release date: 2016-07-11*
-
-Security
---------
-
-- bpo-27278: Fix os.urandom() implementation using getrandom() on Linux.
- Truncate size to INT_MAX and loop until we collected enough random bytes,
- instead of casting a directly Py_ssize_t to int.
-
-- bpo-22636: Avoid shell injection problems with ctypes.util.find_library().
-
-Core and Builtins
------------------
-
-- bpo-27473: Fixed possible integer overflow in bytes and bytearray
- concatenations. Patch by Xiang Zhang.
-
-- bpo-23034: The output of a special Python build with defined COUNT_ALLOCS,
- SHOW_ALLOC_COUNT or SHOW_TRACK_COUNT macros is now off by default. It
- can be re-enabled using the "-X showalloccount" option. It now outputs to
- stderr instead of stdout.
-
-- bpo-27443: __length_hint__() of bytearray iterators no longer return a
- negative integer for a resized bytearray.
-
-- bpo-27007: The fromhex() class methods of bytes and bytearray subclasses
- now return an instance of corresponding subclass.
-
-Library
--------
-
-- bpo-26844: Fix error message for imp.find_module() to refer to 'path'
- instead of 'name'. Patch by Lev Maximov.
-
-- bpo-23804: Fix SSL zero-length recv() calls to not block and not raise an
- error about unclean EOF.
-
-- bpo-27466: Change time format returned by http.cookie.time2netscape,
- confirming the netscape cookie format and making it consistent with
- documentation.
-
-- bpo-21708: Deprecated dbm.dumb behavior that differs from common dbm
- behavior: creating a database in 'r' and 'w' modes and modifying a
- database in 'r' mode.
-
-- bpo-26721: Change the socketserver.StreamRequestHandler.wfile attribute to
- implement BufferedIOBase. In particular, the write() method no longer does
- partial writes.
-
-- bpo-22115: Added methods trace_add, trace_remove and trace_info in the
- tkinter.Variable class. They replace old methods trace_variable, trace,
- trace_vdelete and trace_vinfo that use obsolete Tcl commands and might not
- work in future versions of Tcl. Fixed old tracing methods:
- trace_vdelete() with wrong mode no longer break tracing, trace_vinfo() now
- always returns a list of pairs of strings, tracing in the "u" mode now
- works.
-
-- bpo-26243: Only the level argument to zlib.compress() is keyword argument
- now. The first argument is positional-only.
-
-- bpo-27038: Expose the DirEntry type as os.DirEntry. Code patch by Jelle
- Zijlstra.
-
-- bpo-27186: Update os.fspath()/PyOS_FSPath() to check the return value of
- __fspath__() to be either str or bytes.
-
-- bpo-18726: All optional parameters of the dump(), dumps(), load() and
- loads() functions and JSONEncoder and JSONDecoder class constructors in
- the json module are now keyword-only.
-
-- bpo-27319: Methods selection_set(), selection_add(), selection_remove()
- and selection_toggle() of ttk.TreeView now allow passing multiple items as
- multiple arguments instead of passing them as a tuple. Deprecated
- undocumented ability of calling the selection() method with arguments.
-
-- bpo-27079: Fixed curses.ascii functions isblank(), iscntrl() and
- ispunct().
-
-- bpo-27294: Numerical state in the repr for Tkinter event objects is now
- represented as a combination of known flags.
-
-- bpo-27177: Match objects in the re module now support index-like objects
- as group indices. Based on patches by Jeroen Demeyer and Xiang Zhang.
-
-- bpo-26754: Some functions (compile() etc) accepted a filename argument
- encoded as an iterable of integers. Now only strings and byte-like objects
- are accepted.
-
-- bpo-26536: socket.ioctl now supports SIO_LOOPBACK_FAST_PATH. Patch by
- Daniel Stokes.
-
-- bpo-27048: Prevents distutils failing on Windows when environment
- variables contain non-ASCII characters
-
-- bpo-27330: Fixed possible leaks in the ctypes module.
-
-- bpo-27238: Got rid of bare excepts in the turtle module. Original patch
- by Jelle Zijlstra.
-
-- bpo-27122: When an exception is raised within the context being managed by
- a contextlib.ExitStack() and one of the exit stack generators catches and
- raises it in a chain, do not re-raise the original exception when exiting,
- let the new chained one through. This avoids the :pep:`479` bug described
- in issue25782.
-
-- bpo-16864: sqlite3.Cursor.lastrowid now supports REPLACE statement.
- Initial patch by Alex LordThorsen.
-
-- bpo-26386: Fixed ttk.TreeView selection operations with item id's
- containing spaces.
-
-- bpo-8637: Honor a pager set by the env var MANPAGER (in preference to one
- set by the env var PAGER).
-
-- bpo-16182: Fix various functions in the "readline" module to use the
- locale encoding, and fix get_begidx() and get_endidx() to return code
- point indexes.
-
-- bpo-27392: Add loop.connect_accepted_socket(). Patch by Jim Fulton.
-
-IDLE
-----
-
-- bpo-27477: IDLE search dialogs now use ttk widgets.
-
-- bpo-27173: Add 'IDLE Modern Unix' to the built-in key sets. Make the
- default key set depend on the platform. Add tests for the changes to the
- config module.
-
-- bpo-27452: make command line "idle-test> python test_help.py" work.
- __file__ is relative when python is started in the file's directory.
-
-- bpo-27452: add line counter and crc to IDLE configHandler test dump.
-
-- bpo-27380: IDLE: add query.py with base Query dialog and ttk widgets.
- Module had subclasses SectionName, ModuleName, and HelpSource, which are
- used to get information from users by configdialog and file =>Load Module.
- Each subclass has itw own validity checks. Using ModuleName allows users
- to edit bad module names instead of starting over. Add tests and delete
- the two files combined into the new one.
-
-- bpo-27372: Test_idle no longer changes the locale.
-
-- bpo-27365: Allow non-ascii chars in IDLE NEWS.txt, for contributor names.
-
-- bpo-27245: IDLE: Cleanly delete custom themes and key bindings.
- Previously, when IDLE was started from a console or by import, a cascade
- of warnings was emitted. Patch by Serhiy Storchaka.
-
-- bpo-24137: Run IDLE, test_idle, and htest with tkinter default root
- disabled. Fix code and tests that fail with this restriction. Fix htests
- to not create a second and redundant root and mainloop.
-
-- bpo-27310: Fix IDLE.app failure to launch on OS X due to vestigial import.
-
-C API
------
-
-- bpo-26754: PyUnicode_FSDecoder() accepted a filename argument encoded as
- an iterable of integers. Now only strings and byte-like objects are
- accepted.
-
-Build
------
-
-- bpo-28066: Fix the logic that searches build directories for generated
- include files when building outside the source tree.
-
-- bpo-27442: Expose the Android API level that python was built against, in
- sysconfig.get_config_vars() as 'ANDROID_API_LEVEL'.
-
-- bpo-27434: The interpreter that runs the cross-build, found in PATH, must
- now be of the same feature version (e.g. 3.6) as the source being built.
-
-- bpo-26930: Update Windows builds to use OpenSSL 1.0.2h.
-
-- bpo-23968: Rename the platform directory from plat-$(MACHDEP) to
- plat-$(PLATFORM_TRIPLET). Rename the config directory (LIBPL) from
- config-$(LDVERSION) to config-$(LDVERSION)-$(PLATFORM_TRIPLET). Install
- the platform specific _sysconfigdata module into the platform directory
- and rename it to include the ABIFLAGS.
-
-- Don't use largefile support for GNU/Hurd.
-
-Tools/Demos
------------
-
-- bpo-27332: Fixed the type of the first argument of module-level functions
- generated by Argument Clinic. Patch by Petr Viktorin.
-
-- bpo-27418: Fixed Tools/importbench/importbench.py.
-
-Documentation
--------------
-
-- bpo-19489: Moved the search box from the sidebar to the header and footer
- of each page. Patch by Ammar Askar.
-
-- bpo-27285: Update documentation to reflect the deprecation of ``pyvenv``
- and normalize on the term "virtual environment". Patch by Steve Piercy.
-
-Tests
------
-
-- bpo-27027: Added test.support.is_android that is True when this is an
- Android build.
-
-
-What's New in Python 3.6.0 alpha 2?
-===================================
-
-*Release date: 2016-06-13*
-
-Security
---------
-
-- bpo-26556: Update expat to 2.1.1, fixes CVE-2015-1283.
-
-- Fix TLS stripping vulnerability in smtplib, CVE-2016-0772. Reported by
- Team Oststrom.
-
-- bpo-26839: On Linux, :func:`os.urandom` now calls ``getrandom()`` with
- ``GRND_NONBLOCK`` to fall back on reading ``/dev/urandom`` if the urandom
- entropy pool is not initialized yet. Patch written by Colm Buckley.
-
-Core and Builtins
------------------
-
-- bpo-27095: Simplified MAKE_FUNCTION and removed MAKE_CLOSURE opcodes.
- Patch by Demur Rumed.
-
-- bpo-27190: Raise NotSupportedError if sqlite3 is older than 3.3.1. Patch
- by Dave Sawyer.
-
-- bpo-27286: Fixed compiling BUILD_MAP_UNPACK_WITH_CALL opcode. Calling
- function with generalized unpacking (PEP 448) and conflicting keyword
- names could cause undefined behavior.
-
-- bpo-27140: Added BUILD_CONST_KEY_MAP opcode.
-
-- bpo-27186: Add support for os.PathLike objects to open() (part of
- :pep:`519`).
-
-- bpo-27066: Fixed SystemError if a custom opener (for open()) returns a
- negative number without setting an exception.
-
-- bpo-26983: float() now always return an instance of exact float. The
- deprecation warning is emitted if __float__ returns an instance of a
- strict subclass of float. In a future versions of Python this can be an
- error.
-
-- bpo-27097: Python interpreter is now about 7% faster due to optimized
- instruction decoding. Based on patch by Demur Rumed.
-
-- bpo-26647: Python interpreter now uses 16-bit wordcode instead of
- bytecode. Patch by Demur Rumed.
-
-- bpo-23275: Allow assigning to an empty target list in round brackets: () =
- iterable.
-
-- bpo-27243: Update the __aiter__ protocol: instead of returning an
- awaitable that resolves to an asynchronous iterator, the asynchronous
- iterator should be returned directly. Doing the former will trigger a
- PendingDeprecationWarning.
-
-Library
--------
-
-- Comment out socket (SO_REUSEPORT) and posix (O_SHLOCK, O_EXLOCK) constants
- exposed on the API which are not implemented on GNU/Hurd. They would not
- work at runtime anyway.
-
-- bpo-27025: Generated names for Tkinter widgets are now more meaningful and
- recognizable.
-
-- bpo-25455: Fixed crashes in repr of recursive ElementTree.Element and
- functools.partial objects.
-
-- bpo-27294: Improved repr for Tkinter event objects.
-
-- bpo-20508: Improve exception message of IPv{4,6}Network.__getitem__. Patch
- by Gareth Rees.
-
-- bpo-21386: Implement missing IPv4Address.is_global property. It was
- documented since 07a5610bae9d. Initial patch by Roger Luethi.
-
-- bpo-27029: Removed deprecated support of universal newlines mode from
- ZipFile.open().
-
-- bpo-27030: Unknown escapes consisting of ``'\'`` and an ASCII letter in
- regular expressions now are errors. The re.LOCALE flag now can be used
- only with bytes patterns.
-
-- bpo-27186: Add os.PathLike support to DirEntry (part of :pep:`519`).
- Initial patch by Jelle Zijlstra.
-
-- bpo-20900: distutils register command now decodes HTTP responses
- correctly. Initial patch by ingrid.
-
-- bpo-27186: Add os.PathLike support to pathlib, removing its provisional
- status (part of PEP 519). Initial patch by Dusty Phillips.
-
-- bpo-27186: Add support for os.PathLike objects to os.fsencode() and
- os.fsdecode() (part of :pep:`519`).
-
-- bpo-27186: Introduce os.PathLike and os.fspath() (part of :pep:`519`).
-
-- A new version of typing.py provides several new classes and features:
- @overload outside stubs, Reversible, DefaultDict, Text, ContextManager,
- Type[], NewType(), TYPE_CHECKING, and numerous bug fixes (note that some
- of the new features are not yet implemented in mypy or other static
- analyzers). Also classes for :pep:`492` (Awaitable, AsyncIterable,
- AsyncIterator) have been added (in fact they made it into 3.5.1 but were
- never mentioned).
-
-- bpo-25738: Stop http.server.BaseHTTPRequestHandler.send_error() from
- sending a message body for 205 Reset Content. Also, don't send Content
- header fields in responses that don't have a body. Patch by Susumu
- Koshiba.
-
-- bpo-21313: Fix the "platform" module to tolerate when sys.version contains
- truncated build information.
-
-- bpo-23883: Added missing APIs to __all__ to match the documented APIs for
- the following modules: cgi, mailbox, mimetypes, plistlib and smtpd.
- Patches by Jacek Kołodziej.
-
-- bpo-27164: In the zlib module, allow decompressing raw Deflate streams
- with a predefined zdict. Based on patch by Xiang Zhang.
-
-- bpo-24291: Fix wsgiref.simple_server.WSGIRequestHandler to completely
- write data to the client. Previously it could do partial writes and
- truncate data. Also, wsgiref.handler.ServerHandler can now handle stdout
- doing partial writes, but this is deprecated.
-
-- bpo-21272: Use _sysconfigdata.py to initialize distutils.sysconfig.
-
-- bpo-19611: :mod:`inspect` now reports the implicit ``.0`` parameters
- generated by the compiler for comprehension and generator expression
- scopes as if they were positional-only parameters called ``implicit0``.
- Patch by Jelle Zijlstra.
-
-- bpo-26809: Add ``__all__`` to :mod:`string`. Patch by Emanuel Barry.
-
-- bpo-26373: subprocess.Popen.communicate now correctly ignores
- BrokenPipeError when the child process dies before .communicate() is
- called in more/all circumstances.
-
-- signal, socket, and ssl module IntEnum constant name lookups now return a
- consistent name for values having multiple names. Ex: signal.Signals(6)
- now refers to itself as signal.SIGALRM rather than flipping between that
- and signal.SIGIOT based on the interpreter's hash randomization seed.
-
-- bpo-27167: Clarify the subprocess.CalledProcessError error message text
- when the child process died due to a signal.
-
-- bpo-25931: Don't define socketserver.Forking* names on platforms such as
- Windows that do not support os.fork().
-
-- bpo-21776: distutils.upload now correctly handles HTTPError. Initial patch
- by Claudiu Popa.
-
-- bpo-26526: Replace custom parse tree validation in the parser module with
- a simple DFA validator.
-
-- bpo-27114: Fix SSLContext._load_windows_store_certs fails with
- PermissionError
-
-- bpo-18383: Avoid creating duplicate filters when using filterwarnings and
- simplefilter. Based on patch by Alex Shkop.
-
-- bpo-23026: winreg.QueryValueEx() now return an integer for REG_QWORD type.
-
-- bpo-26741: subprocess.Popen destructor now emits a ResourceWarning warning
- if the child process is still running.
-
-- bpo-27056: Optimize pickle.load() and pickle.loads(), up to 10% faster to
- deserialize a lot of small objects.
-
-- bpo-21271: New keyword only parameters in reset_mock call.
-
-IDLE
-----
-
-- bpo-5124: Paste with text selected now replaces the selection on X11. This
- matches how paste works on Windows, Mac, most modern Linux apps, and ttk
- widgets. Original patch by Serhiy Storchaka.
-
-- bpo-24750: Switch all scrollbars in IDLE to ttk versions. Where needed,
- minimal tests are added to cover changes.
-
-- bpo-24759: IDLE requires tk 8.5 and availability ttk widgets. Delete now
- unneeded tk version tests and code for older versions. Add test for IDLE
- syntax colorizer.
-
-- bpo-27239: idlelib.macosx.isXyzTk functions initialize as needed.
-
-- bpo-27262: move Aqua unbinding code, which enable context menus, to
- macosx.
-
-- bpo-24759: Make clear in idlelib.idle_test.__init__ that the directory is
- a private implementation of test.test_idle and tool for maintainers.
-
-- bpo-27196: Stop 'ThemeChanged' warnings when running IDLE tests. These
- persisted after other warnings were suppressed in #20567. Apply Serhiy
- Storchaka's update_idletasks solution to four test files. Record this
- additional advice in idle_test/README.txt
-
-- bpo-20567: Revise idle_test/README.txt with advice about avoiding tk
- warning messages from tests. Apply advice to several IDLE tests.
-
-- bpo-24225: Update idlelib/README.txt with new file names and event
- handlers.
-
-- bpo-27156: Remove obsolete code not used by IDLE.
-
-- bpo-27117: Make colorizer htest and turtledemo work with dark themes. Move
- code for configuring text widget colors to a new function.
-
-- bpo-24225: Rename many `idlelib/*.py` and `idle_test/test_*.py` files.
- Edit files to replace old names with new names when the old name referred
- to the module rather than the class it contained. See the issue and IDLE
- section in What's New in 3.6 for more.
-
-- bpo-26673: When tk reports font size as 0, change to size 10. Such fonts
- on Linux prevented the configuration dialog from opening.
-
-- bpo-21939: Add test for IDLE's percolator. Original patch by Saimadhav
- Heblikar.
-
-- bpo-21676: Add test for IDLE's replace dialog. Original patch by Saimadhav
- Heblikar.
-
-- bpo-18410: Add test for IDLE's search dialog. Original patch by Westley
- Martínez.
-
-- bpo-21703: Add test for undo delegator. Patch mostly by Saimadhav
- Heblikar .
-
-- bpo-27044: Add ConfigDialog.remove_var_callbacks to stop memory leaks.
-
-- bpo-23977: Add more asserts to test_delegator.
-
-Documentation
--------------
-
-- bpo-16484: Change the default PYTHONDOCS URL to "https:", and fix the
- resulting links to use lowercase. Patch by Sean Rodman, test by Kaushik
- Nadikuditi.
-
-- bpo-24136: Document the new :pep:`448` unpacking syntax of 3.5.
-
-- bpo-22558: Add remaining doc links to source code for Python-coded
- modules. Patch by Yoni Lavi.
-
-Tests
------
-
-- bpo-25285: regrtest now uses subprocesses when the -j1 command line option
- is used: each test file runs in a fresh child process. Before, the -j1
- option was ignored.
-
-- bpo-25285: Tools/buildbot/test.bat script now uses -j1 by default to run
- each test file in fresh child process.
-
-Windows
--------
-
-- bpo-27064: The py.exe launcher now defaults to Python 3. The Windows
- launcher ``py.exe`` no longer prefers an installed Python 2 version over
- Python 3 by default when used interactively.
-
-- bpo-17500: Remove unused and outdated icons. (See also:
- https://github.com/python/pythondotorg/issues/945)
-
-Build
------
-
-- bpo-27229: Fix the cross-compiling pgen rule for in-tree builds. Patch by
- Xavier de Gaye.
-
-- bpo-26930: Update OS X 10.5+ 32-bit-only installer to build and link with
- OpenSSL 1.0.2h.
-
-C API
------
-
-- bpo-27186: Add the PyOS_FSPath() function (part of :pep:`519`).
-
-- bpo-26282: PyArg_ParseTupleAndKeywords() now supports positional-only
- parameters.
-
-Tools/Demos
------------
-
-- bpo-26282: Argument Clinic now supports positional-only and keyword
- parameters in the same function.
-
-
-What's New in Python 3.6.0 alpha 1?
-===================================
-
-*Release date: 2016-05-16*
-
-Security
---------
-
-- bpo-26657: Fix directory traversal vulnerability with http.server on
- Windows. This fixes a regression that was introduced in 3.3.4rc1 and
- 3.4.0rc1. Based on patch by Philipp Hagemeister.
-
-- bpo-26313: ssl.py _load_windows_store_certs fails if windows cert store is
- empty. Patch by Baji.
-
-- bpo-25939: On Windows open the cert store readonly in
- ssl.enum_certificates.
-
-Core and Builtins
------------------
-
-- bpo-20041: Fixed TypeError when frame.f_trace is set to None. Patch by
- Xavier de Gaye.
-
-- bpo-26168: Fixed possible refleaks in failing Py_BuildValue() with the "N"
- format unit.
-
-- bpo-26991: Fix possible refleak when creating a function with annotations.
-
-- bpo-27039: Fixed bytearray.remove() for values greater than 127. Based on
- patch by Joe Jevnik.
-
-- bpo-23640: int.from_bytes() no longer bypasses constructors for
- subclasses.
-
-- bpo-27005: Optimized the float.fromhex() class method for exact float. It
- is now 2 times faster.
-
-- bpo-18531: Single var-keyword argument of dict subtype was passed
- unscathed to the C-defined function. Now it is converted to exact dict.
-
-- bpo-26811: gc.get_objects() no longer contains a broken tuple with NULL
- pointer.
-
-- bpo-20120: Use RawConfigParser for .pypirc parsing, removing support for
- interpolation unintentionally added with move to Python 3. Behavior no
- longer does any interpolation in .pypirc files, matching behavior in
- Python 2.7 and Setuptools 19.0.
-
-- bpo-26249: Memory functions of the :c:func:`PyMem_Malloc` domain
- (:c:data:`PYMEM_DOMAIN_MEM`) now use the :ref:`pymalloc allocator
- <pymalloc>` rather than system :c:func:`malloc`. Applications calling
- :c:func:`PyMem_Malloc` without holding the GIL can now crash: use
- ``PYTHONMALLOC=debug`` environment variable to validate the usage of
- memory allocators in your application.
-
-- bpo-26802: Optimize function calls only using unpacking like
- ``func(*tuple)`` (no other positional argument, no keyword): avoid copying
- the tuple. Patch written by Joe Jevnik.
-
-- bpo-26659: Make the builtin slice type support cycle collection.
-
-- bpo-26718: super.__init__ no longer leaks memory if called multiple times.
- NOTE: A direct call of super.__init__ is not endorsed!
-
-- bpo-27138: Fix the doc comment for FileFinder.find_spec().
-
-- bpo-27147: Mention :pep:`420` in the importlib docs.
-
-- bpo-25339: PYTHONIOENCODING now has priority over locale in setting the
- error handler for stdin and stdout.
-
-- bpo-26494: Fixed crash on iterating exhausting iterators. Affected classes
- are generic sequence iterators, iterators of str, bytes, bytearray, list,
- tuple, set, frozenset, dict, OrderedDict, corresponding views and
- os.scandir() iterator.
-
-- bpo-26574: Optimize ``bytes.replace(b'', b'.')`` and
- ``bytearray.replace(b'', b'.')``. Patch written by Josh Snider.
-
-- bpo-26581: If coding cookie is specified multiple times on a line in
- Python source code file, only the first one is taken to account.
-
-- bpo-19711: Add tests for reloading namespace packages.
-
-- bpo-21099: Switch applicable importlib tests to use :pep:`451` API.
-
-- bpo-26563: Debug hooks on Python memory allocators now raise a fatal error
- if functions of the :c:func:`PyMem_Malloc` family are called without
- holding the GIL.
-
-- bpo-26564: On error, the debug hooks on Python memory allocators now use
- the :mod:`tracemalloc` module to get the traceback where a memory block
- was allocated.
-
-- bpo-26558: The debug hooks on Python memory allocator
- :c:func:`PyObject_Malloc` now detect when functions are called without
- holding the GIL.
-
-- bpo-26516: Add :envvar:`PYTHONMALLOC` environment variable to set the
- Python memory allocators and/or install debug hooks.
-
-- bpo-26516: The :c:func:`PyMem_SetupDebugHooks` function can now also be
- used on Python compiled in release mode.
-
-- bpo-26516: The :envvar:`PYTHONMALLOCSTATS` environment variable can now
- also be used on Python compiled in release mode. It now has no effect if
- set to an empty string.
-
-- bpo-26516: In debug mode, debug hooks are now also installed on Python
- memory allocators when Python is configured without pymalloc.
-
-- bpo-26464: Fix str.translate() when string is ASCII and first replacements
- removes character, but next replacement uses a non-ASCII character or a
- string longer than 1 character. Regression introduced in Python 3.5.0.
-
-- bpo-22836: Ensure exception reports from PyErr_Display() and
- PyErr_WriteUnraisable() are sensible even when formatting them produces
- secondary errors. This affects the reports produced by
- sys.__excepthook__() and when __del__() raises an exception.
-
-- bpo-26302: Correct behavior to reject comma as a legal character for
- cookie names.
-
-- bpo-26136: Upgrade the warning when a generator raises StopIteration from
- PendingDeprecationWarning to DeprecationWarning. Patch by Anish Shah.
-
-- bpo-26204: The compiler now ignores all constant statements: bytes, str,
- int, float, complex, name constants (None, False, True), Ellipsis and
- ast.Constant; not only str and int. For example, ``1.0`` is now ignored in
- ``def f(): 1.0``.
-
-- bpo-4806: Avoid masking the original TypeError exception when using star
- (``*``) unpacking in function calls. Based on patch by Hagen Fürstenau
- and Daniel Urban.
-
-- bpo-26146: Add a new kind of AST node: ``ast.Constant``. It can be used by
- external AST optimizers, but the compiler does not emit directly such
- node.
-
-- bpo-23601: Sped-up allocation of dict key objects by using Python's small
- object allocator. (Contributed by Julian Taylor.)
-
-- bpo-18018: Import raises ImportError instead of SystemError if a relative
- import is attempted without a known parent package.
-
-- bpo-25843: When compiling code, don't merge constants if they are equal
- but have a different types. For example, ``f1, f2 = lambda: 1, lambda:
- 1.0`` is now correctly compiled to two different functions: ``f1()``
- returns ``1`` (``int``) and ``f2()`` returns ``1.0`` (``float``), even if
- ``1`` and ``1.0`` are equal.
-
-- bpo-26107: The format of the ``co_lnotab`` attribute of code objects
- changes to support negative line number delta.
-
-- bpo-26154: Add a new private _PyThreadState_UncheckedGet() function to get
- the current Python thread state, but don't issue a fatal error if it is
- NULL. This new function must be used instead of accessing directly the
- _PyThreadState_Current variable. The variable is no more exposed since
- Python 3.5.1 to hide the exact implementation of atomic C types, to avoid
- compiler issues.
-
-- bpo-25791: If __package__ != __spec__.parent or if neither __package__ or
- __spec__ are defined then ImportWarning is raised.
-
-- bpo-22995: [UPDATE] Comment out the one of the pickleability tests in
- _PyObject_GetState() due to regressions observed in Cython-based projects.
-
-- bpo-25961: Disallowed null characters in the type name.
-
-- bpo-25973: Fix segfault when an invalid nonlocal statement binds a name
- starting with two underscores.
-
-- bpo-22995: Instances of extension types with a state that aren't
- subclasses of list or dict and haven't implemented any pickle-related
- methods (__reduce__, __reduce_ex__, __getnewargs__, __getnewargs_ex__, or
- __getstate__), can no longer be pickled. Including memoryview.
-
-- bpo-20440: Massive replacing unsafe attribute setting code with special
- macro Py_SETREF.
-
-- bpo-25766: Special method __bytes__() now works in str subclasses.
-
-- bpo-25421: __sizeof__ methods of builtin types now use dynamic basic size.
- This allows sys.getsize() to work correctly with their subclasses with
- __slots__ defined.
-
-- bpo-25709: Fixed problem with in-place string concatenation and utf-8
- cache.
-
-- bpo-5319: New Py_FinalizeEx() API allowing Python to set an exit status of
- 120 on failure to flush buffered streams.
-
-- bpo-25485: telnetlib.Telnet is now a context manager.
-
-- bpo-24097: Fixed crash in object.__reduce__() if slot name is freed inside
- __getattr__.
-
-- bpo-24731: Fixed crash on converting objects with special methods
- __bytes__, __trunc__, and __float__ returning instances of subclasses of
- bytes, int, and float to subclasses of bytes, int, and float
- correspondingly.
-
-- bpo-25630: Fix a possible segfault during argument parsing in functions
- that accept filesystem paths.
-
-- bpo-23564: Fixed a partially broken sanity check in the _posixsubprocess
- internals regarding how fds_to_pass were passed to the child. The bug had
- no actual impact as subprocess.py already avoided it.
-
-- bpo-25388: Fixed tokenizer crash when processing undecodable source code
- with a null byte.
-
-- bpo-25462: The hash of the key now is calculated only once in most
- operations in C implementation of OrderedDict.
-
-- bpo-22995: Default implementation of __reduce__ and __reduce_ex__ now
- rejects builtin types with not defined __new__.
-
-- bpo-24802: Avoid buffer overreads when int(), float(), compile(), exec()
- and eval() are passed bytes-like objects. These objects are not
- necessarily terminated by a null byte, but the functions assumed they
- were.
-
-- bpo-25555: Fix parser and AST: fill lineno and col_offset of "arg" node
- when compiling AST from Python objects.
-
-- bpo-24726: Fixed a crash and leaking NULL in repr() of OrderedDict that
- was mutated by direct calls of dict methods.
-
-- bpo-25449: Iterating OrderedDict with keys with unstable hash now raises
- KeyError in C implementations as well as in Python implementation.
-
-- bpo-25395: Fixed crash when highly nested OrderedDict structures were
- garbage collected.
-
-- bpo-25401: Optimize bytes.fromhex() and bytearray.fromhex(): they are now
- between 2x and 3.5x faster.
-
-- bpo-25399: Optimize bytearray % args using the new private _PyBytesWriter
- API. Formatting is now between 2.5 and 5 times faster.
-
-- bpo-25274: sys.setrecursionlimit() now raises a RecursionError if the new
- recursion limit is too low depending at the current recursion depth.
- Modify also the "lower-water mark" formula to make it monotonic. This mark
- is used to decide when the overflowed flag of the thread state is reset.
-
-- bpo-24402: Fix input() to prompt to the redirected stdout when
- sys.stdout.fileno() fails.
-
-- bpo-25349: Optimize bytes % args using the new private _PyBytesWriter API.
- Formatting is now up to 2 times faster.
-
-- bpo-24806: Prevent builtin types that are not allowed to be subclassed
- from being subclassed through multiple inheritance.
-
-- bpo-25301: The UTF-8 decoder is now up to 15 times as fast for error
- handlers: ``ignore``, ``replace`` and ``surrogateescape``.
-
-- bpo-24848: Fixed a number of bugs in UTF-7 decoding of misformed data.
-
-- bpo-25267: The UTF-8 encoder is now up to 75 times as fast for error
- handlers: ``ignore``, ``replace``, ``surrogateescape``, ``surrogatepass``.
- Patch co-written with Serhiy Storchaka.
-
-- bpo-25280: Import trace messages emitted in verbose (-v) mode are no
- longer formatted twice.
-
-- bpo-25227: Optimize ASCII and latin1 encoders with the ``surrogateescape``
- error handler: the encoders are now up to 3 times as fast. Initial patch
- written by Serhiy Storchaka.
-
-- bpo-25003: On Solaris 11.3 or newer, os.urandom() now uses the getrandom()
- function instead of the getentropy() function. The getentropy() function
- is blocking to generate very good quality entropy, os.urandom() doesn't
- need such high-quality entropy.
-
-- bpo-9232: Modify Python's grammar to allow trailing commas in the argument
- list of a function declaration. For example, "def f(\*, a = 3,): pass" is
- now legal. Patch from Mark Dickinson.
-
-- bpo-24965: Implement :pep:`498` "Literal String Interpolation". This
- allows you to embed expressions inside f-strings, which are converted to
- normal strings at run time. Given x=3, then f'value={x}' == 'value=3'.
- Patch by Eric V. Smith.
-
-- bpo-26478: Fix semantic bugs when using binary operators with dictionary
- views and tuples.
-
-- bpo-26171: Fix possible integer overflow and heap corruption in
- zipimporter.get_data().
-
-- bpo-25660: Fix TAB key behaviour in REPL with readline.
-
-- bpo-26288: Optimize PyLong_AsDouble.
-
-- bpo-26289: Optimize floor and modulo division for single-digit longs.
- Microbenchmarks show 2-2.5x improvement. Built-in 'divmod' function is
- now also ~10% faster. (See also: bpo-26315)
-
-- bpo-25887: Raise a RuntimeError when a coroutine object is awaited more
- than once.
-
-Library
--------
-
-- bpo-27057: Fix os.set_inheritable() on Android, ioctl() is blocked by
- SELinux and fails with EACCESS. The function now falls back to fcntl().
- Patch written by Michał Bednarski.
-
-- bpo-27014: Fix infinite recursion using typing.py. Thanks to Kalle Tuure!
-
-- bpo-27031: Removed dummy methods in Tkinter widget classes: tk_menuBar()
- and tk_bindForTraversal().
-
-- bpo-14132: Fix urllib.request redirect handling when the target only has a
- query string. Original fix by Ján Janech.
-
-- bpo-17214: The "urllib.request" module now percent-encodes non-ASCII bytes
- found in redirect target URLs. Some servers send Location header fields
- with non-ASCII bytes, but "http.client" requires the request target to be
- ASCII-encodable, otherwise a UnicodeEncodeError is raised. Based on patch
- by Christian Heimes.
-
-- bpo-27033: The default value of the decode_data parameter for
- smtpd.SMTPChannel and smtpd.SMTPServer constructors is changed to False.
-
-- bpo-27034: Removed deprecated class asynchat.fifo.
-
-- bpo-26870: Added readline.set_auto_history(), which can stop entries being
- automatically added to the history list. Based on patch by Tyler
- Crompton.
-
-- bpo-26039: zipfile.ZipFile.open() can now be used to write data into a ZIP
- file, as well as for extracting data. Patch by Thomas Kluyver.
-
-- bpo-26892: Honor debuglevel flag in urllib.request.HTTPHandler. Patch
- contributed by Chi Hsuan Yen.
-
-- bpo-22274: In the subprocess module, allow stderr to be redirected to
- stdout even when stdout is not redirected. Patch by Akira Li.
-
-- bpo-26807: mock_open 'files' no longer error on readline at end of file.
- Patch from Yolanda Robla.
-
-- bpo-25745: Fixed leaking a userptr in curses panel destructor.
-
-- bpo-26977: Removed unnecessary, and ignored, call to sum of squares helper
- in statistics.pvariance.
-
-- bpo-26002: Use bisect in statistics.median instead of a linear search.
- Patch by Upendra Kuma.
-
-- bpo-25974: Make use of new Decimal.as_integer_ratio() method in statistics
- module. Patch by Stefan Krah.
-
-- bpo-26996: Add secrets module as described in :pep:`506`.
-
-- bpo-26881: The modulefinder module now supports extended opcode arguments.
-
-- bpo-23815: Fixed crashes related to directly created instances of types in
- _tkinter and curses.panel modules.
-
-- bpo-17765: weakref.ref() no longer silently ignores keyword arguments.
- Patch by Georg Brandl.
-
-- bpo-26873: xmlrpc now raises ResponseError on unsupported type tags
- instead of silently return incorrect result.
-
-- bpo-26915: The __contains__ methods in the collections ABCs now check for
- identity before checking equality. This better matches the behavior of
- the concrete classes, allows sensible handling of NaNs, and makes it
- easier to reason about container invariants.
-
-- bpo-26711: Fixed the comparison of plistlib.Data with other types.
-
-- bpo-24114: Fix an uninitialized variable in `ctypes.util`. The bug only
- occurs on SunOS when the ctypes implementation searches for the `crle`
- program. Patch by Xiang Zhang. Tested on SunOS by Kees Bos.
-
-- bpo-26864: In urllib.request, change the proxy bypass host checking
- against no_proxy to be case-insensitive, and to not match unrelated host
- names that happen to have a bypassed hostname as a suffix. Patch by Xiang
- Zhang.
-
-- bpo-24902: Print server URL on http.server startup. Initial patch by
- Felix Kaiser.
-
-- bpo-25788: fileinput.hook_encoded() now supports an "errors" argument for
- passing to open. Original patch by Joseph Hackman.
-
-- bpo-26634: recursive_repr() now sets __qualname__ of wrapper. Patch by
- Xiang Zhang.
-
-- bpo-26804: urllib.request will prefer lower_case proxy environment
- variables over UPPER_CASE or Mixed_Case ones. Patch contributed by
- Hans-Peter Jansen.
-
-- bpo-26837: assertSequenceEqual() now correctly outputs non-stringified
- differing items (like bytes in the -b mode). This affects
- assertListEqual() and assertTupleEqual().
-
-- bpo-26041: Remove "will be removed in Python 3.7" from deprecation
- messages of platform.dist() and platform.linux_distribution(). Patch by
- Kumaripaba Miyurusara Athukorala.
-
-- bpo-26822: itemgetter, attrgetter and methodcaller objects no longer
- silently ignore keyword arguments.
-
-- bpo-26733: Disassembling a class now disassembles class and static
- methods. Patch by Xiang Zhang.
-
-- bpo-26801: Fix error handling in :func:`shutil.get_terminal_size`, catch
- :exc:`AttributeError` instead of :exc:`NameError`. Patch written by
- Emanuel Barry.
-
-- bpo-24838: tarfile's ustar and gnu formats now correctly calculate name
- and link field limits for multibyte character encodings like utf-8.
-
-- bpo-26717: Stop encoding Latin-1-ized WSGI paths with UTF-8. Patch by
- Anthony Sottile.
-
-- bpo-26782: Add STARTUPINFO to subprocess.__all__ on Windows.
-
-- bpo-26404: Add context manager to socketserver. Patch by Aviv Palivoda.
-
-- bpo-26735: Fix :func:`os.urandom` on Solaris 11.3 and newer when reading
- more than 1,024 bytes: call ``getrandom()`` multiple times with a limit of
- 1024 bytes per call.
-
-- bpo-26585: Eliminate http.server._quote_html() and use
- html.escape(quote=False). Patch by Xiang Zhang.
-
-- bpo-26685: Raise OSError if closing a socket fails.
-
-- bpo-16329: Add .webm to mimetypes.types_map. Patch by Giampaolo Rodola'.
-
-- bpo-13952: Add .csv to mimetypes.types_map. Patch by Geoff Wilson.
-
-- bpo-26587: the site module now allows .pth files to specify files to be
- added to sys.path (e.g. zip files).
-
-- bpo-25609: Introduce contextlib.AbstractContextManager and
- typing.ContextManager.
-
-- bpo-26709: Fixed Y2038 problem in loading binary PLists.
-
-- bpo-23735: Handle terminal resizing with Readline 6.3+ by installing our
- own SIGWINCH handler. Patch by Eric Price.
-
-- bpo-25951: Change SSLSocket.sendall() to return None, as explicitly
- documented for plain socket objects. Patch by Aviv Palivoda.
-
-- bpo-26586: In http.server, respond with "413 Request header fields too
- large" if there are too many header fields to parse, rather than killing
- the connection and raising an unhandled exception. Patch by Xiang Zhang.
-
-- bpo-26676: Added missing XMLPullParser to ElementTree.__all__.
-
-- bpo-22854: Change BufferedReader.writable() and BufferedWriter.readable()
- to always return False.
-
-- bpo-26492: Exhausted iterator of array.array now conforms with the
- behavior of iterators of other mutable sequences: it lefts exhausted even
- if iterated array is extended.
-
-- bpo-26641: doctest.DocFileTest and doctest.testfile() now support packages
- (module splitted into multiple directories) for the package parameter.
-
-- bpo-25195: Fix a regression in mock.MagicMock. _Call is a subclass of
- tuple (changeset 3603bae63c13 only works for classes) so we need to
- implement __ne__ ourselves. Patch by Andrew Plummer.
-
-- bpo-26644: Raise ValueError rather than SystemError when a negative length
- is passed to SSLSocket.recv() or read().
-
-- bpo-23804: Fix SSL recv(0) and read(0) methods to return zero bytes
- instead of up to 1024.
-
-- bpo-26616: Fixed a bug in datetime.astimezone() method.
-
-- bpo-26637: The :mod:`importlib` module now emits an :exc:`ImportError`
- rather than a :exc:`TypeError` if :func:`__import__` is tried during the
- Python shutdown process but :data:`sys.path` is already cleared (set to
- ``None``).
-
-- bpo-21925: :func:`warnings.formatwarning` now catches exceptions when
- calling :func:`linecache.getline` and
- :func:`tracemalloc.get_object_traceback` to be able to log
- :exc:`ResourceWarning` emitted late during the Python shutdown process.
-
-- bpo-23848: On Windows, faulthandler.enable() now also installs an
- exception handler to dump the traceback of all Python threads on any
- Windows exception, not only on UNIX signals (SIGSEGV, SIGFPE, SIGABRT).
-
-- bpo-26530: Add C functions :c:func:`_PyTraceMalloc_Track` and
- :c:func:`_PyTraceMalloc_Untrack` to track memory blocks using the
- :mod:`tracemalloc` module. Add :c:func:`_PyTraceMalloc_GetTraceback` to
- get the traceback of an object.
-
-- bpo-26588: The _tracemalloc now supports tracing memory allocations of
- multiple address spaces (domains).
-
-- bpo-24266: Ctrl+C during Readline history search now cancels the search
- mode when compiled with Readline 7.
-
-- bpo-26590: Implement a safe finalizer for the _socket.socket type. It now
- releases the GIL to close the socket.
-
-- bpo-18787: spwd.getspnam() now raises a PermissionError if the user
- doesn't have privileges.
-
-- bpo-26560: Avoid potential ValueError in BaseHandler.start_response.
- Initial patch by Peter Inglesby.
-
-- bpo-26567: Add a new function :c:func:`PyErr_ResourceWarning` function to
- pass the destroyed object. Add a *source* attribute to
- :class:`warnings.WarningMessage`. Add warnings._showwarnmsg() which uses
- tracemalloc to get the traceback where source object was allocated.
-
-- bpo-26569: Fix :func:`pyclbr.readmodule` and :func:`pyclbr.readmodule_ex`
- to support importing packages.
-
-- bpo-26499: Account for remaining Content-Length in HTTPResponse.readline()
- and read1(). Based on patch by Silent Ghost. Also document that
- HTTPResponse now supports these methods.
-
-- bpo-25320: Handle sockets in directories unittest discovery is scanning.
- Patch from Victor van den Elzen.
-
-- bpo-16181: cookiejar.http2time() now returns None if year is higher than
- datetime.MAXYEAR.
-
-- bpo-26513: Fixes platform module detection of Windows Server
-
-- bpo-23718: Fixed parsing time in week 0 before Jan 1. Original patch by
- Tamás Bence Gedai.
-
-- bpo-26323: Add Mock.assert_called() and Mock.assert_called_once() methods
- to unittest.mock. Patch written by Amit Saha.
-
-- bpo-20589: Invoking Path.owner() and Path.group() on Windows now raise
- NotImplementedError instead of ImportError.
-
-- bpo-26177: Fixed the keys() method for Canvas and Scrollbar widgets.
-
-- bpo-15068: Got rid of excessive buffering in fileinput. The bufsize
- parameter is now deprecated and ignored.
-
-- bpo-19475: Added an optional argument timespec to the datetime isoformat()
- method to choose the precision of the time component.
-
-- bpo-2202: Fix UnboundLocalError in
- AbstractDigestAuthHandler.get_algorithm_impls. Initial patch by Mathieu
- Dupuy.
-
-- bpo-26167: Minimized overhead in copy.copy() and copy.deepcopy().
- Optimized copying and deepcopying bytearrays, NotImplemented, slices,
- short lists, tuples, dicts, sets.
-
-- bpo-25718: Fixed pickling and copying the accumulate() iterator with total
- is None.
-
-- bpo-26475: Fixed debugging output for regular expressions with the (?x)
- flag.
-
-- bpo-26482: Allowed pickling recursive dequeues.
-
-- bpo-26335: Make mmap.write() return the number of bytes written like other
- write methods. Patch by Jakub Stasiak.
-
-- bpo-26457: Fixed the subnets() methods in IP network classes for the case
- when resulting prefix length is equal to maximal prefix length. Based on
- patch by Xiang Zhang.
-
-- bpo-26385: Remove the file if the internal open() call in
- NamedTemporaryFile() fails. Patch by Silent Ghost.
-
-- bpo-26402: Fix XML-RPC client to retry when the server shuts down a
- persistent connection. This was a regression related to the new
- http.client.RemoteDisconnected exception in 3.5.0a4.
-
-- bpo-25913: Leading ``<~`` is optional now in base64.a85decode() with
- adobe=True. Patch by Swati Jaiswal.
-
-- bpo-26186: Remove an invalid type check in importlib.util.LazyLoader.
-
-- bpo-26367: importlib.__import__() raises ImportError like
- builtins.__import__() when ``level`` is specified but without an
- accompanying package specified.
-
-- bpo-26309: In the "socketserver" module, shut down the request (closing
- the connected socket) when verify_request() returns false. Patch by Aviv
- Palivoda.
-
-- bpo-23430: Change the socketserver module to only catch exceptions raised
- from a request handler that are derived from Exception (instead of
- BaseException). Therefore SystemExit and KeyboardInterrupt no longer
- trigger the handle_error() method, and will now to stop a single-threaded
- server.
-
-- bpo-25995: os.walk() no longer uses FDs proportional to the tree depth.
-
-- bpo-25994: Added the close() method and the support of the context manager
- protocol for the os.scandir() iterator.
-
-- bpo-23992: multiprocessing: make MapResult not fail-fast upon exception.
-
-- bpo-26243: Support keyword arguments to zlib.compress(). Patch by Aviv
- Palivoda.
-
-- bpo-26117: The os.scandir() iterator now closes file descriptor not only
- when the iteration is finished, but when it was failed with error.
-
-- bpo-25949: __dict__ for an OrderedDict instance is now created only when
- needed.
-
-- bpo-25911: Restored support of bytes paths in os.walk() on Windows.
-
-- bpo-26045: Add UTF-8 suggestion to error message when posting a
- non-Latin-1 string with http.client.
-
-- bpo-26039: Added zipfile.ZipInfo.from_file() and zipinfo.ZipInfo.is_dir().
- Patch by Thomas Kluyver.
-
-- bpo-12923: Reset FancyURLopener's redirect counter even if there is an
- exception. Based on patches by Brian Brazil and Daniel Rocco.
-
-- bpo-25945: Fixed a crash when unpickle the functools.partial object with
- wrong state. Fixed a leak in failed functools.partial constructor. "args"
- and "keywords" attributes of functools.partial have now always types tuple
- and dict correspondingly.
-
-- bpo-26202: copy.deepcopy() now correctly copies range() objects with
- non-atomic attributes.
-
-- bpo-23076: Path.glob() now raises a ValueError if it's called with an
- invalid pattern. Patch by Thomas Nyberg.
-
-- bpo-19883: Fixed possible integer overflows in zipimport.
-
-- bpo-26227: On Windows, getnameinfo(), gethostbyaddr() and
- gethostbyname_ex() functions of the socket module now decode the hostname
- from the ANSI code page rather than UTF-8.
-
-- bpo-26099: The site module now writes an error into stderr if
- sitecustomize module can be imported but executing the module raise an
- ImportError. Same change for usercustomize.
-
-- bpo-26147: xmlrpc now works with strings not encodable with used non-UTF-8
- encoding.
-
-- bpo-25935: Garbage collector now breaks reference loops with OrderedDict.
-
-- bpo-16620: Fixed AttributeError in msilib.Directory.glob().
-
-- bpo-26013: Added compatibility with broken protocol 2 pickles created in
- old Python 3 versions (3.4.3 and lower).
-
-- bpo-26129: Deprecated accepting non-integers in grp.getgrgid().
-
-- bpo-25850: Use cross-compilation by default for 64-bit Windows.
-
-- bpo-25822: Add docstrings to the fields of urllib.parse results. Patch
- contributed by Swati Jaiswal.
-
-- bpo-22642: Convert trace module option parsing mechanism to argparse.
- Patch contributed by SilentGhost.
-
-- bpo-24705: Fix sysconfig._parse_makefile not expanding ${} vars appearing
- before $() vars.
-
-- bpo-26069: Remove the deprecated apis in the trace module.
-
-- bpo-22138: Fix mock.patch behavior when patching descriptors. Restore
- original values after patching. Patch contributed by Sean McCully.
-
-- bpo-25672: In the ssl module, enable the SSL_MODE_RELEASE_BUFFERS mode
- option if it is safe to do so.
-
-- bpo-26012: Don't traverse into symlinks for ``**`` pattern in
- pathlib.Path.[r]glob().
-
-- bpo-24120: Ignore PermissionError when traversing a tree with
- pathlib.Path.[r]glob(). Patch by Ulrich Petri.
-
-- bpo-21815: Accept ] characters in the data portion of imap responses, in
- order to handle the flags with square brackets accepted and produced by
- servers such as gmail.
-
-- bpo-25447: fileinput now uses sys.stdin as-is if it does not have a buffer
- attribute (restores backward compatibility).
-
-- bpo-25971: Optimized creating Fractions from floats by 2 times and from
- Decimals by 3 times.
-
-- bpo-25802: Document as deprecated the remaining implementations of
- importlib.abc.Loader.load_module().
-
-- bpo-25928: Add Decimal.as_integer_ratio().
-
-- bpo-25447: Copying the lru_cache() wrapper object now always works,
- independently from the type of the wrapped object (by returning the
- original object unchanged).
-
-- bpo-25768: Have the functions in compileall return booleans instead of
- ints and add proper documentation and tests for the return values.
-
-- bpo-24103: Fixed possible use after free in ElementTree.XMLPullParser.
-
-- bpo-25860: os.fwalk() no longer skips remaining directories when error
- occurs. Original patch by Samson Lee.
-
-- bpo-25914: Fixed and simplified OrderedDict.__sizeof__.
-
-- bpo-25869: Optimized deepcopying ElementTree; it is now 20 times faster.
-
-- bpo-25873: Optimized iterating ElementTree. Iterating elements
- Element.iter() is now 40% faster, iterating text Element.itertext() is now
- up to 2.5 times faster.
-
-- bpo-25902: Fixed various refcount issues in ElementTree iteration.
-
-- bpo-22227: The TarFile iterator is reimplemented using generator. This
- implementation is simpler that using class.
-
-- bpo-25638: Optimized ElementTree.iterparse(); it is now 2x faster.
- Optimized ElementTree parsing; it is now 10% faster.
-
-- bpo-25761: Improved detecting errors in broken pickle data.
-
-- bpo-25717: Restore the previous behaviour of tolerating most fstat()
- errors when opening files. This was a regression in 3.5a1, and stopped
- anonymous temporary files from working in special cases.
-
-- bpo-24903: Fix regression in number of arguments compileall accepts when
- '-d' is specified. The check on the number of arguments has been dropped
- completely as it never worked correctly anyway.
-
-- bpo-25764: In the subprocess module, preserve any exception caused by
- fork() failure when preexec_fn is used.
-
-- bpo-25771: Tweak the exception message for importlib.util.resolve_name()
- when 'package' isn't specified but necessary.
-
-- bpo-6478: _strptime's regexp cache now is reset after changing timezone
- with time.tzset().
-
-- bpo-14285: When executing a package with the "python -m package" option,
- and package initialization fails, a proper traceback is now reported. The
- "runpy" module now lets exceptions from package initialization pass back
- to the caller, rather than raising ImportError.
-
-- bpo-19771: Also in runpy and the "-m" option, omit the irrelevant message
- ". . . is a package and cannot be directly executed" if the package could
- not even be initialized (e.g. due to a bad ``*.pyc`` file).
-
-- bpo-25177: Fixed problem with the mean of very small and very large
- numbers. As a side effect, statistics.mean and statistics.variance should
- be significantly faster.
-
-- bpo-25718: Fixed copying object with state with boolean value is false.
-
-- bpo-10131: Fixed deep copying of minidom documents. Based on patch by
- Marian Ganisin.
-
-- bpo-7990: dir() on ElementTree.Element now lists properties: "tag",
- "text", "tail" and "attrib". Original patch by Santoso Wijaya.
-
-- bpo-25725: Fixed a reference leak in pickle.loads() when unpickling
- invalid data including tuple instructions.
-
-- bpo-25663: In the Readline completer, avoid listing duplicate global
- names, and search the global namespace before searching builtins.
-
-- bpo-25688: Fixed file leak in ElementTree.iterparse() raising an error.
-
-- bpo-23914: Fixed SystemError raised by unpickler on broken pickle data.
-
-- bpo-25691: Fixed crash on deleting ElementTree.Element attributes.
-
-- bpo-25624: ZipFile now always writes a ZIP_STORED header for directory
- entries. Patch by Dingyuan Wang.
-
-- bpo-25626: Change three zlib functions to accept sizes that fit in
- Py_ssize_t, but internally cap those sizes to UINT_MAX. This resolves a
- regression in 3.5 where GzipFile.read() failed to read chunks larger than
- 2 or 4 GiB. The change affects the zlib.Decompress.decompress()
- max_length parameter, the zlib.decompress() bufsize parameter, and the
- zlib.Decompress.flush() length parameter.
-
-- bpo-25583: Avoid incorrect errors raised by os.makedirs(exist_ok=True)
- when the OS gives priority to errors such as EACCES over EEXIST.
-
-- bpo-25593: Change semantics of EventLoop.stop() in asyncio.
-
-- bpo-6973: When we know a subprocess.Popen process has died, do not allow
- the send_signal(), terminate(), or kill() methods to do anything as they
- could potentially signal a different process.
-
-- bpo-23883: Added missing APIs to __all__ to match the documented APIs for
- the following modules: calendar, csv, enum, fileinput, ftplib, logging,
- optparse, tarfile, threading and wave. Also added a
- test.support.check__all__() helper. Patches by Jacek Kołodziej, Mauro S.
- M. Rodrigues and Joel Taddei.
-
-- bpo-25590: In the Readline completer, only call getattr() once per
- attribute. Also complete names of attributes such as properties and slots
- which are listed by dir() but not yet created on an instance.
-
-- bpo-25498: Fix a crash when garbage-collecting ctypes objects created by
- wrapping a memoryview. This was a regression made in 3.5a1. Based on
- patch by Eryksun.
-
-- bpo-25584: Added "escape" to the __all__ list in the glob module.
-
-- bpo-25584: Fixed recursive glob() with patterns starting with ``**``.
-
-- bpo-25446: Fix regression in smtplib's AUTH LOGIN support.
-
-- bpo-18010: Fix the pydoc web server's module search function to handle
- exceptions from importing packages.
-
-- bpo-25554: Got rid of circular references in regular expression parsing.
-
-- bpo-18973: Command-line interface of the calendar module now uses argparse
- instead of optparse.
-
-- bpo-25510: fileinput.FileInput.readline() now returns b'' instead of '' at
- the end if the FileInput was opened with binary mode. Patch by Ryosuke
- Ito.
-
-- bpo-25503: Fixed inspect.getdoc() for inherited docstrings of properties.
- Original patch by John Mark Vandenberg.
-
-- bpo-25515: Always use os.urandom as a source of randomness in uuid.uuid4.
-
-- bpo-21827: Fixed textwrap.dedent() for the case when largest common
- whitespace is a substring of smallest leading whitespace. Based on patch
- by Robert Li.
-
-- bpo-25447: The lru_cache() wrapper objects now can be copied and pickled
- (by returning the original object unchanged).
-
-- bpo-25390: typing: Don't crash on Union[str, Pattern].
-
-- bpo-25441: asyncio: Raise error from drain() when socket is closed.
-
-- bpo-25410: Cleaned up and fixed minor bugs in C implementation of
- OrderedDict.
-
-- bpo-25411: Improved Unicode support in SMTPHandler through better use of
- the email package. Thanks to user simon04 for the patch.
-
-- Move the imp module from a PendingDeprecationWarning to
- DeprecationWarning.
-
-- bpo-25407: Remove mentions of the formatter module being removed in Python
- 3.6.
-
-- bpo-25406: Fixed a bug in C implementation of OrderedDict.move_to_end()
- that caused segmentation fault or hang in iterating after moving several
- items to the start of ordered dict.
-
-- bpo-25382: pickletools.dis() now outputs implicit memo index for the
- MEMOIZE opcode.
-
-- bpo-25357: Add an optional newline parameter to binascii.b2a_base64().
- base64.b64encode() uses it to avoid a memory copy.
-
-- bpo-24164: Objects that need calling ``__new__`` with keyword arguments,
- can now be pickled using pickle protocols older than protocol version 4.
-
-- bpo-25364: zipfile now works in threads disabled builds.
-
-- bpo-25328: smtpd's SMTPChannel now correctly raises a ValueError if both
- decode_data and enable_SMTPUTF8 are set to true.
-
-- bpo-16099: RobotFileParser now supports Crawl-delay and Request-rate
- extensions. Patch by Nikolay Bogoychev.
-
-- bpo-25316: distutils raises OSError instead of DistutilsPlatformError when
- MSVC is not installed.
-
-- bpo-25380: Fixed protocol for the STACK_GLOBAL opcode in
- pickletools.opcodes.
-
-- bpo-23972: Updates asyncio datagram create method allowing reuseport and
- reuseaddr socket options to be set prior to binding the socket. Mirroring
- the existing asyncio create_server method the reuseaddr option for
- datagram sockets defaults to True if the O/S is 'posix' (except if the
- platform is Cygwin). Patch by Chris Laws.
-
-- bpo-25304: Add asyncio.run_coroutine_threadsafe(). This lets you submit a
- coroutine to a loop from another thread, returning a
- concurrent.futures.Future. By Vincent Michel.
-
-- bpo-25232: Fix CGIRequestHandler to split the query from the URL at the
- first question mark (?) rather than the last. Patch from Xiang Zhang.
-
-- bpo-24657: Prevent CGIRequestHandler from collapsing slashes in the query
- part of the URL as if it were a path. Patch from Xiang Zhang.
-
-- bpo-25287: Don't add crypt.METHOD_CRYPT to crypt.methods if it's not
- supported. Check if it is supported, it may not be supported on OpenBSD
- for example.
-
-- bpo-23600: Default implementation of tzinfo.fromutc() was returning wrong
- results in some cases.
-
-- bpo-25203: Failed readline.set_completer_delims() no longer left the
- module in inconsistent state.
-
-- bpo-25011: rlcompleter now omits private and special attribute names
- unless the prefix starts with underscores.
-
-- bpo-25209: rlcompleter now can add a space or a colon after completed
- keyword.
-
-- bpo-22241: timezone.utc name is now plain 'UTC', not 'UTC-00:00'.
-
-- bpo-23517: fromtimestamp() and utcfromtimestamp() methods of
- datetime.datetime now round microseconds to nearest with ties going to
- nearest even integer (ROUND_HALF_EVEN), as round(float), instead of
- rounding towards -Infinity (ROUND_FLOOR).
-
-- bpo-23552: Timeit now warns when there is substantial (4x) variance
- between best and worst times. Patch from Serhiy Storchaka.
-
-- bpo-24633: site-packages/README -> README.txt.
-
-- bpo-24879: help() and pydoc can now list named tuple fields in the order
- they were defined rather than alphabetically. The ordering is determined
- by the _fields attribute if present.
-
-- bpo-24874: Improve speed of itertools.cycle() and make its pickle more
- compact.
-
-- Fix crash in itertools.cycle.__setstate__() when the first argument wasn't
- a list.
-
-- bpo-20059: urllib.parse raises ValueError on all invalid ports. Patch by
- Martin Panter.
-
-- bpo-24360: Improve __repr__ of argparse.Namespace() for invalid
- identifiers. Patch by Matthias Bussonnier.
-
-- bpo-23426: run_setup was broken in distutils. Patch from Alexander
- Belopolsky.
-
-- bpo-13938: 2to3 converts StringTypes to a tuple. Patch from Mark Hammond.
-
-- bpo-2091: open() accepted a 'U' mode string containing '+', but 'U' can
- only be used with 'r'. Patch from Jeff Balogh and John O'Connor.
-
-- bpo-8585: improved tests for zipimporter2. Patch from Mark Lawrence.
-
-- bpo-18622: unittest.mock.mock_open().reset_mock would recurse infinitely.
- Patch from Nicola Palumbo and Laurent De Buyst.
-
-- bpo-24426: Fast searching optimization in regular expressions now works
- for patterns that starts with capturing groups. Fast searching
- optimization now can't be disabled at compile time.
-
-- bpo-23661: unittest.mock side_effects can now be exceptions again. This
- was a regression vs Python 3.4. Patch from Ignacio Rossi
-
-- bpo-13248: Remove deprecated inspect.getmoduleinfo function.
-
-- bpo-25578: Fix (another) memory leak in SSLSocket.getpeercer().
-
-- bpo-25530: Disable the vulnerable SSLv3 protocol by default when creating
- ssl.SSLContext.
-
-- bpo-25569: Fix memory leak in SSLSocket.getpeercert().
-
-- bpo-25471: Sockets returned from accept() shouldn't appear to be
- nonblocking.
-
-- bpo-25319: When threading.Event is reinitialized, the underlying condition
- should use a regular lock rather than a recursive lock.
-
-- Skip getaddrinfo if host is already resolved. Patch by A. Jesse Jiryu
- Davis.
-
-- bpo-26050: Add asyncio.StreamReader.readuntil() method. Patch by Марк
- Коренберг.
-
-- bpo-25924: Avoid unnecessary serialization of getaddrinfo(3) calls on OS X
- versions 10.5 or higher. Original patch by A. Jesse Jiryu Davis.
-
-- bpo-26406: Avoid unnecessary serialization of getaddrinfo(3) calls on
- current versions of OpenBSD and NetBSD. Patch by A. Jesse Jiryu Davis.
-
-- bpo-26848: Fix asyncio/subprocess.communicate() to handle empty input.
- Patch by Jack O'Connor.
-
-- bpo-27040: Add loop.get_exception_handler method
-
-- bpo-27041: asyncio: Add loop.create_future method
-
-IDLE
-----
-
-- bpo-20640: Add tests for idlelib.configHelpSourceEdit. Patch by Saimadhav
- Heblikar.
-
-- In the 'IDLE-console differences' section of the IDLE doc, clarify how
- running with IDLE affects sys.modules and the standard streams.
-
-- bpo-25507: fix incorrect change in IOBinding that prevented printing.
- Augment IOBinding htest to include all major IOBinding functions.
-
-- bpo-25905: Revert unwanted conversion of ' to ’ RIGHT SINGLE QUOTATION
- MARK in README.txt and open this and NEWS.txt with 'ascii'. Re-encode
- CREDITS.txt to utf-8 and open it with 'utf-8'.
-
-- bpo-15348: Stop the debugger engine (normally in a user process) before
- closing the debugger window (running in the IDLE process). This prevents
- the RuntimeErrors that were being caught and ignored.
-
-- bpo-24455: Prevent IDLE from hanging when a) closing the shell while the
- debugger is active (15347); b) closing the debugger with the [X] button
- (15348); and c) activating the debugger when already active (24455). The
- patch by Mark Roseman does this by making two changes. 1. Suspend and
- resume the gui.interaction method with the tcl vwait mechanism intended
- for this purpose (instead of root.mainloop & .quit). 2. In gui.run, allow
- any existing interaction to terminate first.
-
-- Change 'The program' to 'Your program' in an IDLE 'kill program?' message
- to make it clearer that the program referred to is the currently running
- user program, not IDLE itself.
-
-- bpo-24750: Improve the appearance of the IDLE editor window status bar.
- Patch by Mark Roseman.
-
-- bpo-25313: Change the handling of new built-in text color themes to better
- address the compatibility problem introduced by the addition of IDLE Dark.
- Consistently use the revised idleConf.CurrentTheme everywhere in idlelib.
-
-- bpo-24782: Extension configuration is now a tab in the IDLE Preferences
- dialog rather than a separate dialog. The former tabs are now a sorted
- list. Patch by Mark Roseman.
-
-- bpo-22726: Re-activate the config dialog help button with some content
- about the other buttons and the new IDLE Dark theme.
-
-- bpo-24820: IDLE now has an 'IDLE Dark' built-in text color theme. It is
- more or less IDLE Classic inverted, with a cobalt blue background.
- Strings, comments, keywords, ... are still green, red, orange, ... . To
- use it with IDLEs released before November 2015, hit the 'Save as New
- Custom Theme' button and enter a new name, such as 'Custom Dark'. The
- custom theme will work with any IDLE release, and can be modified.
-
-- bpo-25224: README.txt is now an idlelib index for IDLE developers and
- curious users. The previous user content is now in the IDLE doc chapter.
- 'IDLE' now means 'Integrated Development and Learning Environment'.
-
-- bpo-24820: Users can now set breakpoint colors in Settings -> Custom
- Highlighting. Original patch by Mark Roseman.
-
-- bpo-24972: Inactive selection background now matches active selection
- background, as configured by users, on all systems. Found items are now
- always highlighted on Windows. Initial patch by Mark Roseman.
-
-- bpo-24570: Idle: make calltip and completion boxes appear on Macs affected
- by a tk regression. Initial patch by Mark Roseman.
-
-- bpo-24988: Idle ScrolledList context menus (used in debugger) now work on
- Mac Aqua. Patch by Mark Roseman.
-
-- bpo-24801: Make right-click for context menu work on Mac Aqua. Patch by
- Mark Roseman.
-
-- bpo-25173: Associate tkinter messageboxes with a specific widget. For Mac
- OSX, make them a 'sheet'. Patch by Mark Roseman.
-
-- bpo-25198: Enhance the initial html viewer now used for Idle Help.
- Properly indent fixed-pitch text (patch by Mark Roseman). Give code
- snippet a very Sphinx-like light blueish-gray background. Re-use initial
- width and height set by users for shell and editor. When the Table of
- Contents (TOC) menu is used, put the section header at the top of the
- screen.
-
-- bpo-25225: Condense and rewrite Idle doc section on text colors.
-
-- bpo-21995: Explain some differences between IDLE and console Python.
-
-- bpo-22820: Explain need for *print* when running file from Idle editor.
-
-- bpo-25224: Doc: augment Idle feature list and no-subprocess section.
-
-- bpo-25219: Update doc for Idle command line options. Some were missing and
- notes were not correct.
-
-- bpo-24861: Most of idlelib is private and subject to change. Use
- idleib.idle.* to start Idle. See idlelib.__init__.__doc__.
-
-- bpo-25199: Idle: add synchronization comments for future maintainers.
-
-- bpo-16893: Replace help.txt with help.html for Idle doc display. The new
- idlelib/help.html is rstripped Doc/build/html/library/idle.html. It looks
- better than help.txt and will better document Idle as released. The
- tkinter html viewer that works for this file was written by Rose Roseman.
- The now unused EditorWindow.HelpDialog class and helt.txt file are
- deprecated.
-
-- bpo-24199: Deprecate unused idlelib.idlever with possible removal in 3.6.
-
-- bpo-24790: Remove extraneous code (which also create 2 & 3 conflicts).
-
-Documentation
--------------
-
-- bpo-26736: Used HTTPS for external links in the documentation if possible.
-
-- bpo-6953: Rework the Readline module documentation to group related
- functions together, and add more details such as what underlying Readline
- functions and variables are accessed.
-
-- bpo-23606: Adds note to ctypes documentation regarding cdll.msvcrt.
-
-- bpo-24952: Clarify the default size argument of stack_size() in the
- "threading" and "_thread" modules. Patch from Mattip.
-
-- bpo-26014: Update 3.x packaging documentation: * "See also" links to the
- new docs are now provided in the legacy pages * links to setuptools
- documentation have been updated
-
-Tests
------
-
-- bpo-21916: Added tests for the turtle module. Patch by ingrid, Gregory
- Loyse and Jelle Zijlstra.
-
-- bpo-26295: When using "python3 -m test --testdir=TESTDIR", regrtest
- doesn't add "test." prefix to test module names.
-
-- bpo-26523: The multiprocessing thread pool (multiprocessing.dummy.Pool)
- was untested.
-
-- bpo-26015: Added new tests for pickling iterators of mutable sequences.
-
-- bpo-26325: Added test.support.check_no_resource_warning() to check that no
- ResourceWarning is emitted.
-
-- bpo-25940: Changed test_ssl to use its internal local server more. This
- avoids relying on svn.python.org, which recently changed root certificate.
-
-- bpo-25616: Tests for OrderedDict are extracted from test_collections into
- separate file test_ordered_dict.
-
-- bpo-25449: Added tests for OrderedDict subclasses.
-
-- bpo-25188: Add -P/--pgo to test.regrtest to suppress error output when
- running the test suite for the purposes of a PGO build. Initial patch by
- Alecsandru Patrascu.
-
-- bpo-22806: Add ``python -m test --list-tests`` command to list tests.
-
-- bpo-18174: ``python -m test --huntrleaks ...`` now also checks for leak of
- file descriptors. Patch written by Richard Oudkerk.
-
-- bpo-25260: Fix ``python -m test --coverage`` on Windows. Remove the list
- of ignored directories.
-
-- ``PCbuild\rt.bat`` now accepts an unlimited number of arguments to pass
- along to regrtest.py. Previously there was a limit of 9.
-
-- bpo-26583: Skip test_timestamp_overflow in test_import if bytecode files
- cannot be written.
-
-Build
------
-
-- bpo-21277: Don't try to link _ctypes with a ffi_convenience library.
-
-- bpo-26884: Fix linking extension modules for cross builds. Patch by Xavier
- de Gaye.
-
-- bpo-26932: Fixed support of RTLD_* constants defined as enum values, not
- via macros (in particular on Android). Patch by Chi Hsuan Yen.
-
-- bpo-22359: Disable the rules for running _freeze_importlib and pgen when
- cross-compiling. The output of these programs is normally saved with the
- source code anyway, and is still regenerated when doing a native build.
- Patch by Xavier de Gaye.
-
-- bpo-21668: Link audioop, _datetime, _ctypes_test modules to libm, except
- on Mac OS X. Patch written by Chi Hsuan Yen.
-
-- bpo-25702: A --with-lto configure option has been added that will enable
- link time optimizations at build time during a make profile-opt. Some
- compilers and toolchains are known to not produce stable code when using
- LTO, be sure to test things thoroughly before relying on it. It can
- provide a few % speed up over profile-opt alone.
-
-- bpo-26624: Adds validation of ucrtbase[d].dll version with warning for old
- versions.
-
-- bpo-17603: Avoid error about nonexistent fileblocks.o file by using a
- lower-level check for st_blocks in struct stat.
-
-- bpo-26079: Fixing the build output folder for tix-8.4.3.6. Patch by Bjoern
- Thiel.
-
-- bpo-26465: Update Windows builds to use OpenSSL 1.0.2g.
-
-- bpo-25348: Added ``--pgo`` and ``--pgo-job`` arguments to
- ``PCbuild\build.bat`` for building with Profile-Guided Optimization. The
- old ``PCbuild\build_pgo.bat`` script is removed.
-
-- bpo-25827: Add support for building with ICC to ``configure``, including a
- new ``--with-icc`` flag.
-
-- bpo-25696: Fix installation of Python on UNIX with make -j9.
-
-- bpo-24986: It is now possible to build Python on Windows without errors
- when external libraries are not available.
-
-- bpo-24421: Compile Modules/_math.c once, before building extensions.
- Previously it could fail to compile properly if the math and cmath builds
- were concurrent.
-
-- bpo-26465: Update OS X 10.5+ 32-bit-only installer to build and link with
- OpenSSL 1.0.2g.
-
-- bpo-26268: Update Windows builds to use OpenSSL 1.0.2f.
-
-- bpo-25136: Support Apple Xcode 7's new textual SDK stub libraries.
-
-- bpo-24324: Do not enable unreachable code warnings when using gcc as the
- option does not work correctly in older versions of gcc and has been
- silently removed as of gcc-4.5.
-
-Windows
--------
-
-- bpo-27053: Updates make_zip.py to correctly generate library ZIP file.
-
-- bpo-26268: Update the prepare_ssl.py script to handle OpenSSL releases
- that don't include the contents of the include directory (that is, 1.0.2e
- and later).
-
-- bpo-26071: bdist_wininst created binaries fail to start and find 32bit
- Python
-
-- bpo-26073: Update the list of magic numbers in launcher
-
-- bpo-26065: Excludes venv from library when generating embeddable distro.
-
-- bpo-25022: Removed very outdated PC/example_nt/ directory.
-
-Tools/Demos
------------
-
-- bpo-26799: Fix python-gdb.py: don't get C types once when the Python code
- is loaded, but get C types on demand. The C types can change if
- python-gdb.py is loaded before the Python executable. Patch written by
- Thomas Ilsche.
-
-- bpo-26271: Fix the Freeze tool to properly use flags passed through
- configure. Patch by Daniel Shaulov.
-
-- bpo-26489: Add dictionary unpacking support to Tools/parser/unparse.py.
- Patch by Guo Ci Teo.
-
-- bpo-26316: Fix variable name typo in Argument Clinic.
-
-- bpo-25440: Fix output of python-config --extension-suffix.
-
-- bpo-25154: The pyvenv script has been deprecated in favour of `python3 -m
- venv`.
-
-C API
------
-
-- bpo-26312: SystemError is now raised in all programming bugs with using
- PyArg_ParseTupleAndKeywords(). RuntimeError did raised before in some
- programming bugs.
-
-- bpo-26198: ValueError is now raised instead of TypeError on buffer
- overflow in parsing "es#" and "et#" format units. SystemError is now
- raised instead of TypeError on programmatical error in parsing format
- string.
-
-
-What's New in Python 3.5.5 final?
-=================================
-
-*Release date: 2018-02-04*
-
-There were no new changes in version 3.5.5.
-
-
-
-What's New in Python 3.5.5 release candidate 1?
-===============================================
-
-*Release date: 2018-01-23*
-
-Security
---------
-
-- bpo-32551: The ``sys.path[0]`` initialization change for bpo-29139 caused
- a regression by revealing an inconsistency in how sys.path is initialized
- when executing ``__main__`` from a zipfile, directory, or other import
- location. This is considered a potential security issue, as it may lead to
- privileged processes unexpectedly loading code from user controlled
- directories in situations where that was not previously the case. The
- interpreter now consistently avoids ever adding the import location's
- parent directory to ``sys.path``, and ensures no other ``sys.path``
- entries are inadvertently modified when inserting the import location
- named on the command line. (Originally reported as bpo-29723 against
- Python 3.6rc1, but it was missed at the time that the then upcoming Python
- 3.5.4 release would also be affected)
-
-- bpo-30657: Fixed possible integer overflow in PyBytes_DecodeEscape,
- CVE-2017-1000158. Original patch by Jay Bosamiya; rebased to Python 3 by
- Miro Hrončok.
-
-- bpo-30947: Upgrade libexpat embedded copy from version 2.2.1 to 2.2.3 to
- get security fixes.
-
-Core and Builtins
------------------
-
-- bpo-31095: Fix potential crash during GC caused by ``tp_dealloc`` which
- doesn't call ``PyObject_GC_UnTrack()``.
-
-Library
--------
-
-- bpo-32072: Fixed issues with binary plists: Fixed saving bytearrays.
- Identical objects will be saved only once. Equal references will be load
- as identical objects. Added support for saving and loading recursive data
- structures.
-
-- bpo-31170: expat: Update libexpat from 2.2.3 to 2.2.4. Fix copying of
- partial characters for UTF-8 input (libexpat bug 115):
- https://github.com/libexpat/libexpat/issues/115
-
-
-What's New in Python 3.5.4 final?
-=================================
-
-*Release date: 2017-08-07*
-
-Library
--------
-
-- bpo-30119: ftplib.FTP.putline() now throws ValueError on commands that
- contains CR or LF. Patch by Dong-hee Na.
-
-
-What's New in Python 3.5.4 release candidate 1?
-===============================================
-
-*Release date: 2017-07-23*
-
-Security
---------
-
-- bpo-30730: Prevent environment variables injection in subprocess on
- Windows. Prevent passing other environment variables and command
- arguments.
-
-- bpo-30694: Upgrade expat copy from 2.2.0 to 2.2.1 to get fixes of multiple
- security vulnerabilities including: CVE-2017-9233 (External entity
- infinite loop DoS), CVE-2016-9063 (Integer overflow, re-fix),
- CVE-2016-0718 (Fix regression bugs from 2.2.0's fix to CVE-2016-0718) and
- CVE-2012-0876 (Counter hash flooding with SipHash). Note: the
- CVE-2016-5300 (Use os-specific entropy sources like getrandom) doesn't
- impact Python, since Python already gets entropy from the OS to set the
- expat secret using ``XML_SetHashSalt()``.
-
-- bpo-30500: Fix urllib.parse.splithost() to correctly parse fragments. For
- example, ``splithost('//127.0.0.1#@evil.com/')`` now correctly returns the
- ``127.0.0.1`` host, instead of treating ``@evil.com`` as the host in an
- authentication (``login@host``).
-
-- bpo-29591: Update expat copy from 2.1.1 to 2.2.0 to get fixes of
- CVE-2016-0718 and CVE-2016-4472. See
- https://sourceforge.net/p/expat/bugs/537/ for more information.
-
-Core and Builtins
------------------
-
-- bpo-30876: Relative import from unloaded package now reimports the package
- instead of failing with SystemError. Relative import from non-package now
- fails with ImportError rather than SystemError.
-
-- bpo-30765: Avoid blocking in pthread_mutex_lock() when
- PyThread_acquire_lock() is asked not to block.
-
-- bpo-27945: Fixed various segfaults with dict when input collections are
- mutated during searching, inserting or comparing. Based on patches by
- Duane Griffin and Tim Mitchell.
-
-- bpo-25794: Fixed type.__setattr__() and type.__delattr__() for
- non-interned attribute names. Based on patch by Eryk Sun.
-
-- bpo-29935: Fixed error messages in the index() method of tuple, list and
- deque when pass indices of wrong type.
-
-- bpo-28876: ``bool(range)`` works even if ``len(range)`` raises
- :exc:`OverflowError`.
-
-- bpo-29600: Fix wrapping coroutine return values in StopIteration.
-
-- bpo-29537: Restore runtime compatibility with bytecode files generated by
- CPython 3.5.0 to 3.5.2, and adjust the eval loop to avoid the problems
- that could be caused by the malformed variant of the
- BUILD_MAP_UNPACK_WITH_CALL opcode that they may contain. Patch by Petr
- Viktorin, Serhiy Storchaka, and Nick Coghlan.
-
-- bpo-28598: Support __rmod__ for subclasses of str being called before
- str.__mod__. Patch by Martijn Pieters.
-
-- bpo-29602: Fix incorrect handling of signed zeros in complex constructor
- for complex subclasses and for inputs having a __complex__ method. Patch
- by Serhiy Storchaka.
-
-- bpo-29347: Fixed possibly dereferencing undefined pointers when creating
- weakref objects.
-
-- bpo-29438: Fixed use-after-free problem in key sharing dict.
-
-- bpo-29319: Prevent RunMainFromImporter overwriting sys.path[0].
-
-- bpo-29337: Fixed possible BytesWarning when compare the code objects.
- Warnings could be emitted at compile time.
-
-- bpo-29478: If max_line_length=None is specified while using the Compat32
- policy, it is no longer ignored. Patch by Mircea Cosbuc.
-
-Library
--------
-
-- bpo-29403: Fix ``unittest.mock``'s autospec to not fail on method-bound
- builtin functions. Patch by Aaron Gallagher.
-
-- bpo-30961: Fix decrementing a borrowed reference in tracemalloc.
-
-- bpo-30886: Fix multiprocessing.Queue.join_thread(): it now waits until the
- thread completes, even if the thread was started by the same process which
- created the queue.
-
-- bpo-29854: Fix segfault in readline when using readline's history-size
- option. Patch by Nir Soffer.
-
-- bpo-30807: signal.setitimer() may disable the timer when passed a tiny
- value. Tiny values (such as 1e-6) are valid non-zero values for
- setitimer(), which is specified as taking microsecond-resolution
- intervals. However, on some platform, our conversion routine could convert
- 1e-6 into a zero interval, therefore disabling the timer instead of
- (re-)scheduling it.
-
-- bpo-30441: Fix bug when modifying os.environ while iterating over it
-
-- bpo-30532: Fix email header value parser dropping folding white space in
- certain cases.
-
-- bpo-29169: Update zlib to 1.2.11.
-
-- bpo-30879: os.listdir() and os.scandir() now emit bytes names when called
- with bytes-like argument.
-
-- bpo-30746: Prohibited the '=' character in environment variable names in
- ``os.putenv()`` and ``os.spawn*()``.
-
-- bpo-29755: Fixed the lgettext() family of functions in the gettext module.
- They now always return bytes.
-
-- bpo-30645: Fix path calculation in imp.load_package(), fixing it for cases
- when a package is only shipped with bytecodes. Patch by Alexandru
- Ardelean.
-
-- bpo-23890: unittest.TestCase.assertRaises() now manually breaks a
- reference cycle to not keep objects alive longer than expected.
-
-- bpo-30149: inspect.signature() now supports callables with
- variable-argument parameters wrapped with partialmethod. Patch by Dong-hee
- Na.
-
-- bpo-29931: Fixed comparison check for ipaddress.ip_interface objects.
- Patch by Sanjay Sundaresan.
-
-- bpo-24484: Avoid race condition in multiprocessing cleanup.
-
-- bpo-28994: The traceback no longer displayed for SystemExit raised in a
- callback registered by atexit.
-
-- bpo-30508: Don't log exceptions if Task/Future "cancel()" method was
- called.
-
-- bpo-28556: Updates to typing module: Add generic AsyncContextManager, add
- support for ContextManager on all versions. Original PRs by Jelle Zijlstra
- and Ivan Levkivskyi
-
-- bpo-29870: Fix ssl sockets leaks when connection is aborted in asyncio/ssl
- implementation. Patch by Michaël Sghaïer.
-
-- bpo-29743: Closing transport during handshake process leaks open socket.
- Patch by Nikolay Kim
-
-- bpo-27585: Fix waiter cancellation in asyncio.Lock. Patch by Mathieu
- Sornay.
-
-- bpo-30418: On Windows, subprocess.Popen.communicate() now also ignore
- EINVAL on stdin.write() if the child process is still running but closed
- the pipe.
-
-- bpo-30378: Fix the problem that logging.handlers.SysLogHandler cannot
- handle IPv6 addresses.
-
-- bpo-29960: Preserve generator state when _random.Random.setstate() raises
- an exception. Patch by Bryan Olson.
-
-- bpo-30414: multiprocessing.Queue._feed background running thread do not
- break from main loop on exception.
-
-- bpo-30003: Fix handling escape characters in HZ codec. Based on patch by
- Ma Lin.
-
-- bpo-30301: Fix AttributeError when using SimpleQueue.empty() under *spawn*
- and *forkserver* start methods.
-
-- bpo-30329: imaplib and poplib now catch the Windows socket WSAEINVAL error
- (code 10022) on shutdown(SHUT_RDWR): An invalid operation was attempted.
- This error occurs sometimes on SSL connections.
-
-- bpo-30375: Warnings emitted when compile a regular expression now always
- point to the line in the user code. Previously they could point into
- inners of the re module if emitted from inside of groups or conditionals.
-
-- bpo-30048: Fixed ``Task.cancel()`` can be ignored when the task is running
- coroutine and the coroutine returned without any more ``await``.
-
-- bpo-29990: Fix range checking in GB18030 decoder. Original patch by Ma
- Lin.
-
-- bpo-26293: Change resulted because of zipfile breakage. (See also:
- bpo-29094)
-
-- bpo-30243: Removed the __init__ methods of _json's scanner and encoder.
- Misusing them could cause memory leaks or crashes. Now scanner and
- encoder objects are completely initialized in the __new__ methods.
-
-- bpo-30185: Avoid KeyboardInterrupt tracebacks in forkserver helper process
- when Ctrl-C is received.
-
-- bpo-28556: Various updates to typing module: add typing.NoReturn type, use
- WrapperDescriptorType, minor bug-fixes. Original PRs by Jim
- Fasarakis-Hilliard and Ivan Levkivskyi.
-
-- bpo-30205: Fix getsockname() for unbound AF_UNIX sockets on Linux.
-
-- bpo-30070: Fixed leaks and crashes in errors handling in the parser
- module.
-
-- bpo-30061: Fixed crashes in IOBase methods __next__() and readlines() when
- readline() or __next__() respectively return non-sizeable object. Fixed
- possible other errors caused by not checking results of PyObject_Size(),
- PySequence_Size(), or PyMapping_Size().
-
-- bpo-30068: _io._IOBase.readlines will check if it's closed first when hint
- is present.
-
-- bpo-29694: Fixed race condition in pathlib mkdir with flags parents=True.
- Patch by Armin Rigo.
-
-- bpo-29692: Fixed arbitrary unchaining of RuntimeError exceptions in
- contextlib.contextmanager. Patch by Siddharth Velankar.
-
-- bpo-29998: Pickling and copying ImportError now preserves name and path
- attributes.
-
-- bpo-29942: Fix a crash in itertools.chain.from_iterable when encountering
- long runs of empty iterables.
-
-- bpo-27863: Fixed multiple crashes in ElementTree caused by race conditions
- and wrong types.
-
-- bpo-28699: Fixed a bug in pools in multiprocessing.pool that raising an
- exception at the very first of an iterable may swallow the exception or
- make the program hang. Patch by Davin Potts and Xiang Zhang.
-
-- bpo-25803: Avoid incorrect errors raised by Path.mkdir(exist_ok=True) when
- the OS gives priority to errors such as EACCES over EEXIST.
-
-- bpo-29861: Release references to tasks, their arguments and their results
- as soon as they are finished in multiprocessing.Pool.
-
-- bpo-29884: faulthandler: Restore the old sigaltstack during teardown.
- Patch by Christophe Zeitouny.
-
-- bpo-25455: Fixed crashes in repr of recursive buffered file-like objects.
-
-- bpo-29800: Fix crashes in partial.__repr__ if the keys of partial.keywords
- are not strings. Patch by Michael Seifert.
-
-- bpo-29742: get_extra_info() raises exception if get called on closed ssl
- transport. Patch by Nikolay Kim.
-
-- bpo-8256: Fixed possible failing or crashing input() if attributes
- "encoding" or "errors" of sys.stdin or sys.stdout are not set or are not
- strings.
-
-- bpo-28298: Fix a bug that prevented array 'Q', 'L' and 'I' from accepting
- big intables (objects that have __int__) as elements. Patch by Oren
- Milman.
-
-- bpo-29615: SimpleXMLRPCDispatcher no longer chains KeyError (or any other
- exception) to exception(s) raised in the dispatched methods. Patch by Petr
- Motejlek.
-
-- bpo-29704: asyncio.subprocess.SubprocessStreamProtocol no longer closes
- before all pipes are closed.
-
-- bpo-29703: Fix asyncio to support instantiation of new event loops in
- child processes.
-
-- bpo-29376: Fix assertion error in threading._DummyThread.is_alive().
-
-- bpo-29110: Fix file object leak in aifc.open() when file is given as a
- filesystem path and is not in valid AIFF format. Patch by Anthony Zhang.
-
-- bpo-28961: Fix unittest.mock._Call helper: don't ignore the name parameter
- anymore. Patch written by Jiajun Huang.
-
-- bpo-29532: Altering a kwarg dictionary passed to functools.partial() no
- longer affects a partial object after creation.
-
-- bpo-28556: Various updates to typing module: typing.Counter,
- typing.ChainMap, improved ABC caching, etc. Original PRs by Jelle
- Zijlstra, Ivan Levkivskyi, Manuel Krebber, and Łukasz Langa.
-
-- bpo-29100: Fix datetime.fromtimestamp() regression introduced in Python
- 3.6.0: check minimum and maximum years.
-
-- bpo-29519: Fix weakref spewing exceptions during interpreter shutdown when
- used with a rare combination of multiprocessing and custom codecs.
-
-- bpo-29416: Prevent infinite loop in pathlib.Path.mkdir
-
-- bpo-29444: Fixed out-of-bounds buffer access in the group() method of the
- match object. Based on patch by WGH.
-
-- bpo-29335: Fix subprocess.Popen.wait() when the child process has exited
- to a stopped instead of terminated state (ex: when under ptrace).
-
-- bpo-29290: Fix a regression in argparse that help messages would wrap at
- non-breaking spaces.
-
-- bpo-28735: Fixed the comparison of mock.MagickMock with mock.ANY.
-
-- bpo-29011: Fix an important omission by adding Deque to the typing module.
-
-- bpo-29219: Fixed infinite recursion in the repr of uninitialized
- ctypes.CDLL instances.
-
-- bpo-28969: Fixed race condition in C implementation of
- functools.lru_cache. KeyError could be raised when cached function with
- full cache was simultaneously called from different threads with the same
- uncached arguments.
-
-- bpo-29142: In urllib.request, suffixes in no_proxy environment variable
- with leading dots could match related hostnames again (e.g. .b.c matches
- a.b.c). Patch by Milan Oberkirch.
-
-Documentation
--------------
-
-- bpo-30176: Add missing attribute related constants in curses
- documentation.
-
-- bpo-26985: Add missing info of code object in inspect documentation.
-
-- bpo-28929: Link the documentation to its source file on GitHub.
-
-- bpo-25008: Document smtpd.py as effectively deprecated and add a pointer
- to aiosmtpd, a third-party asyncio-based replacement.
-
-- bpo-26355: Add canonical header link on each page to corresponding major
- version of the documentation. Patch by Matthias Bussonnier.
-
-- bpo-29349: Fix Python 2 syntax in code for building the documentation.
-
-Tests
------
-
-- bpo-30822: Fix regrtest command line parser to allow passing -u
- extralargefile to run test_zipfile64.
-
-- bpo-30383: regrtest: Enhance regrtest and backport features from the
- master branch. Add options: --coverage, --testdir, --list-tests (list test
- files, don't run them), --list-cases (list test identifiers, don't run
- them, :issue:`30523`), --matchfile (load a list of test filters from a
- text file, :issue:`30540`), --slowest (alias to --slow). Enhance output:
- add timestamp, test result, currently running tests, "Tests result: xxx"
- summary with total duration, etc. Fix reference leak hunting in regrtest,
- --huntrleaks: regrtest now warms up caches, create explicitly all internal
- singletons which are created on demand to prevent false positives when
- checking for reference leaks. (:issue:`30675`).
-
-- bpo-30357: test_thread: setUp() now uses support.threading_setup() and
- support.threading_cleanup() to wait until threads complete to avoid random
- side effects on following tests. Initial patch written by Grzegorz
- Grzywacz.
-
-- bpo-28087: Skip test_asyncore and test_eintr poll failures on macOS. Skip
- some tests of select.poll when running on macOS due to unresolved issues
- with the underlying system poll function on some macOS versions.
-
-- bpo-30197: Enhanced functions swap_attr() and swap_item() in the
- test.support module. They now work when delete replaced attribute or item
- inside the with statement. The old value of the attribute or item (or
- None if it doesn't exist) now will be assigned to the target of the "as"
- clause, if there is one.
-
-- bpo-29571: to match the behaviour of the ``re.LOCALE`` flag,
- test_re.test_locale_flag now uses ``locale.getpreferredencoding(False)``
- to determine the candidate encoding for the test regex (allowing it to
- correctly skip the test when the default locale encoding is a multi-byte
- encoding)
-
-Build
------
-
-- bpo-29243: Prevent unnecessary rebuilding of Python during ``make test``,
- ``make install`` and some other make targets when configured with
- ``--enable-optimizations``.
-
-- bpo-23404: Don't regenerate generated files based on file modification
- time anymore: the action is now explicit. Replace ``make touch`` with
- ``make regen-all``.
-
-- bpo-29643: Fix ``--enable-optimization`` didn't work.
-
-Windows
--------
-
-- bpo-30687: Locate msbuild.exe on Windows when building rather than
- vcvarsall.bat
-
-- bpo-29392: Prevent crash when passing invalid arguments into msvcrt
- module.
-
-C API
------
-
-- bpo-27867: Function PySlice_GetIndicesEx() is replaced with a macro if
- Py_LIMITED_API is set to the value between 0x03050400 and 0x03060000 (not
- including) or 0x03060100 or higher.
-
-- bpo-29083: Fixed the declaration of some public API functions.
- PyArg_VaParse() and PyArg_VaParseTupleAndKeywords() were not available in
- limited API. PyArg_ValidateKeywordArguments(), PyArg_UnpackTuple() and
- Py_BuildValue() were not available in limited API of version < 3.3 when
- PY_SSIZE_T_CLEAN is defined.
-
-
-What's New in Python 3.5.3 final?
-=================================
-
-*Release date: 2017-01-17*
-
-There were no code changes between 3.5.3rc1 and 3.5.3 final.
-
-
-
-What's New in Python 3.5.3 release candidate 1?
-===============================================
-
-*Release date: 2017-01-02*
-
-Security
---------
-
-- bpo-27278: Fix os.urandom() implementation using getrandom() on Linux.
- Truncate size to INT_MAX and loop until we collected enough random bytes,
- instead of casting a directly Py_ssize_t to int.
-
-- bpo-22636: Avoid shell injection problems with ctypes.util.find_library().
-
-Core and Builtins
------------------
-
-- bpo-29073: bytearray formatting no longer truncates on first null byte.
-
-- bpo-28932: Do not include <sys/random.h> if it does not exist.
-
-- bpo-28147: Fix a memory leak in split-table dictionaries: setattr() must
- not convert combined table into split table.
-
-- bpo-25677: Correct the positioning of the syntax error caret for indented
- blocks. Based on patch by Michael Layzell.
-
-- bpo-29000: Fixed bytes formatting of octals with zero padding in alternate
- form.
-
-- bpo-28512: Fixed setting the offset attribute of SyntaxError by
- PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
-
-- bpo-28991: functools.lru_cache() was susceptible to an obscure reentrancy
- bug caused by a monkey-patched len() function.
-
-- bpo-28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X
- when decode astral characters. Patch by Xiang Zhang.
-
-- bpo-19398: Extra slash no longer added to sys.path components in case of
- empty compile-time PYTHONPATH components.
-
-- bpo-28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug
- build.
-
-- bpo-23782: Fixed possible memory leak in _PyTraceback_Add() and exception
- loss in PyTraceBack_Here().
-
-- bpo-28379: Added sanity checks and tests for PyUnicode_CopyCharacters().
- Patch by Xiang Zhang.
-
-- bpo-28376: The type of long range iterator is now registered as Iterator.
- Patch by Oren Milman.
-
-- bpo-28376: The constructor of range_iterator now checks that step is not
- 0. Patch by Oren Milman.
-
-- bpo-26906: Resolving special methods of uninitialized type now causes
- implicit initialization of the type instead of a fail.
-
-- bpo-18287: PyType_Ready() now checks that tp_name is not NULL. Original
- patch by Niklas Koep.
-
-- bpo-24098: Fixed possible crash when AST is changed in process of
- compiling it.
-
-- bpo-28350: String constants with null character no longer interned.
-
-- bpo-26617: Fix crash when GC runs during weakref callbacks.
-
-- bpo-27942: String constants now interned recursively in tuples and
- frozensets.
-
-- bpo-21578: Fixed misleading error message when ImportError called with
- invalid keyword args.
-
-- bpo-28203: Fix incorrect type in error message from ``complex(1.0,
- {2:3})``. Patch by Soumya Sharma.
-
-- bpo-27955: Fallback on reading /dev/urandom device when the getrandom()
- syscall fails with EPERM, for example when blocked by SECCOMP.
-
-- bpo-28131: Fix a regression in zipimport's compile_source(). zipimport
- should use the same optimization level as the interpreter.
-
-- bpo-25221: Fix corrupted result from PyLong_FromLong(0) when Python is
- compiled with NSMALLPOSINTS = 0.
-
-- bpo-25758: Prevents zipimport from unnecessarily encoding a filename
- (patch by Eryk Sun)
-
-- bpo-28189: dictitems_contains no longer swallows compare errors. (Patch by
- Xiang Zhang)
-
-- bpo-27812: Properly clear out a generator's frame's backreference to the
- generator to prevent crashes in frame.clear().
-
-- bpo-27811: Fix a crash when a coroutine that has not been awaited is
- finalized with warnings-as-errors enabled.
-
-- bpo-27587: Fix another issue found by PVS-Studio: Null pointer check after
- use of 'def' in _PyState_AddModule(). Initial patch by Christian Heimes.
-
-- bpo-26020: set literal evaluation order did not match documented
- behaviour.
-
-- bpo-27782: Multi-phase extension module import now correctly allows the
- ``m_methods`` field to be used to add module level functions to instances
- of non-module types returned from ``Py_create_mod``. Patch by Xiang Zhang.
-
-- bpo-27936: The round() function accepted a second None argument for some
- types but not for others. Fixed the inconsistency by accepting None for
- all numeric types.
-
-- bpo-27487: Warn if a submodule argument to "python -m" or
- runpy.run_module() is found in sys.modules after parent packages are
- imported, but before the submodule is executed.
-
-- bpo-27558: Fix a SystemError in the implementation of "raise" statement.
- In a brand new thread, raise a RuntimeError since there is no active
- exception to reraise. Patch written by Xiang Zhang.
-
-- bpo-27419: Standard __import__() no longer look up "__import__" in globals
- or builtins for importing submodules or "from import". Fixed handling an
- error of non-string package name.
-
-- bpo-27083: Respect the PYTHONCASEOK environment variable under Windows.
-
-- bpo-27514: Make having too many statically nested blocks a SyntaxError
- instead of SystemError.
-
-- bpo-27473: Fixed possible integer overflow in bytes and bytearray
- concatenations. Patch by Xiang Zhang.
-
-- bpo-27507: Add integer overflow check in bytearray.extend(). Patch by
- Xiang Zhang.
-
-- bpo-27581: Don't rely on wrapping for overflow check in
- PySequence_Tuple(). Patch by Xiang Zhang.
-
-- bpo-27443: __length_hint__() of bytearray iterators no longer return a
- negative integer for a resized bytearray.
-
-- bpo-27942: Fix memory leak in codeobject.c
-
-Library
--------
-
-- bpo-15812: inspect.getframeinfo() now correctly shows the first line of a
- context. Patch by Sam Breese.
-
-- bpo-29094: Offsets in a ZIP file created with extern file object and modes
- "w" and "x" now are relative to the start of the file.
-
-- bpo-13051: Fixed recursion errors in large or resized
- curses.textpad.Textbox. Based on patch by Tycho Andersen.
-
-- bpo-29119: Fix weakrefs in the pure python version of
- collections.OrderedDict move_to_end() method. Contributed by Andra
- Bogildea.
-
-- bpo-9770: curses.ascii predicates now work correctly with negative
- integers.
-
-- bpo-28427: old keys should not remove new values from WeakValueDictionary
- when collecting from another thread.
-
-- bpo-28923: Remove editor artifacts from Tix.py.
-
-- bpo-28871: Fixed a crash when deallocate deep ElementTree.
-
-- bpo-19542: Fix bugs in WeakValueDictionary.setdefault() and
- WeakValueDictionary.pop() when a GC collection happens in another thread.
-
-- bpo-20191: Fixed a crash in resource.prlimit() when pass a sequence that
- doesn't own its elements as limits.
-
-- bpo-28779: multiprocessing.set_forkserver_preload() would crash the
- forkserver process if a preloaded module instantiated some multiprocessing
- objects such as locks.
-
-- bpo-28847: dbm.dumb now supports reading read-only files and no longer
- writes the index file when it is not changed.
-
-- bpo-25659: In ctypes, prevent a crash calling the from_buffer() and
- from_buffer_copy() methods on abstract classes like Array.
-
-- bpo-28732: Fix crash in os.spawnv() with no elements in args
-
-- bpo-28485: Always raise ValueError for negative
- compileall.compile_dir(workers=...) parameter, even when multithreading is
- unavailable.
-
-- bpo-28387: Fixed possible crash in _io.TextIOWrapper deallocator when the
- garbage collector is invoked in other thread. Based on patch by Sebastian
- Cufre.
-
-- bpo-27517: LZMA compressor and decompressor no longer raise exceptions if
- given empty data twice. Patch by Benjamin Fogle.
-
-- bpo-28549: Fixed segfault in curses's addch() with ncurses6.
-
-- bpo-28449: tarfile.open() with mode "r" or "r:" now tries to open a tar
- file with compression before trying to open it without compression.
- Otherwise it had 50% chance failed with ignore_zeros=True.
-
-- bpo-23262: The webbrowser module now supports Firefox 36+ and derived
- browsers. Based on patch by Oleg Broytman.
-
-- bpo-27939: Fixed bugs in tkinter.ttk.LabeledScale and tkinter.Scale caused
- by representing the scale as float value internally in Tk. tkinter.IntVar
- now works if float value is set to underlying Tk variable.
-
-- bpo-28255: calendar.TextCalendar().prmonth() no longer prints a space at
- the start of new line after printing a month's calendar. Patch by Xiang
- Zhang.
-
-- bpo-20491: The textwrap.TextWrapper class now honors non-breaking spaces.
- Based on patch by Kaarle Ritvanen.
-
-- bpo-28353: os.fwalk() no longer fails on broken links.
-
-- bpo-25464: Fixed HList.header_exists() in tkinter.tix module by addin a
- workaround to Tix library bug.
-
-- bpo-28488: shutil.make_archive() no longer add entry "./" to ZIP archive.
-
-- bpo-24452: Make webbrowser support Chrome on Mac OS X.
-
-- bpo-20766: Fix references leaked by pdb in the handling of SIGINT
- handlers.
-
-- bpo-26293: Fixed writing ZIP files that starts not from the start of the
- file. Offsets in ZIP file now are relative to the start of the archive in
- conforming to the specification.
-
-- bpo-28321: Fixed writing non-BMP characters with binary format in
- plistlib.
-
-- bpo-28322: Fixed possible crashes when unpickle itertools objects from
- incorrect pickle data. Based on patch by John Leitch.
-
-- Fix possible integer overflows and crashes in the mmap module with unusual
- usage patterns.
-
-- bpo-1703178: Fix the ability to pass the --link-objects option to the
- distutils build_ext command.
-
-- bpo-28253: Fixed calendar functions for extreme months: 0001-01 and
- 9999-12. Methods itermonthdays() and itermonthdays2() are reimplemented so
- that they don't call itermonthdates() which can cause datetime.date
- under/overflow.
-
-- bpo-28275: Fixed possible use after free in the decompress() methods of
- the LZMADecompressor and BZ2Decompressor classes. Original patch by John
- Leitch.
-
-- bpo-27897: Fixed possible crash in sqlite3.Connection.create_collation()
- if pass invalid string-like object as a name. Patch by Xiang Zhang.
-
-- bpo-18893: Fix invalid exception handling in Lib/ctypes/macholib/dyld.py.
- Patch by Madison May.
-
-- bpo-27611: Fixed support of default root window in the tkinter.tix module.
-
-- bpo-27348: In the traceback module, restore the formatting of exception
- messages like "Exception: None". This fixes a regression introduced in
- 3.5a2.
-
-- bpo-25651: Allow falsy values to be used for msg parameter of subTest().
-
-- bpo-27932: Prevent memory leak in win32_ver().
-
-- Fix UnboundLocalError in socket._sendfile_use_sendfile.
-
-- bpo-28075: Check for ERROR_ACCESS_DENIED in Windows implementation of
- os.stat(). Patch by Eryk Sun.
-
-- bpo-25270: Prevent codecs.escape_encode() from raising SystemError when an
- empty bytestring is passed.
-
-- bpo-28181: Get antigravity over HTTPS. Patch by Kaartic Sivaraam.
-
-- bpo-25895: Enable WebSocket URL schemes in urllib.parse.urljoin. Patch by
- Gergely Imreh and Markus Holtermann.
-
-- bpo-27599: Fixed buffer overrun in binascii.b2a_qp() and
- binascii.a2b_qp().
-
-- bpo-19003: m email.generator now replaces only ``\r`` and/or ``\n`` line
- endings, per the RFC, instead of all unicode line endings.
-
-- bpo-28019: itertools.count() no longer rounds non-integer step in range
- between 1.0 and 2.0 to 1.
-
-- bpo-25969: Update the lib2to3 grammar to handle the unpacking
- generalizations added in 3.5.
-
-- bpo-14977: mailcap now respects the order of the lines in the mailcap
- files ("first match"), as required by RFC 1542. Patch by Michael Lazar.
-
-- bpo-24594: Validates persist parameter when opening MSI database
-
-- bpo-17582: xml.etree.ElementTree nows preserves whitespaces in attributes
- (Patch by Duane Griffin. Reviewed and approved by Stefan Behnel.)
-
-- bpo-28047: Fixed calculation of line length used for the base64 CTE in the
- new email policies.
-
-- bpo-27445: Don't pass str(_charset) to MIMEText.set_payload(). Patch by
- Claude Paroz.
-
-- bpo-22450: urllib now includes an ``Accept: */*`` header among the default
- headers. This makes the results of REST API requests more consistent and
- predictable especially when proxy servers are involved.
-
-- lib2to3.pgen3.driver.load_grammar() now creates a stable cache file
- between runs given the same Grammar.txt input regardless of the hash
- randomization setting.
-
-- bpo-27570: Avoid zero-length memcpy() etc calls with null source pointers
- in the "ctypes" and "array" modules.
-
-- bpo-22233: Break email header lines *only* on the RFC specified CR and LF
- characters, not on arbitrary unicode line breaks. This also fixes a bug
- in HTTP header parsing.
-
-- bpo-27988: Fix email iter_attachments incorrect mutation of payload list.
-
-- bpo-27691: Fix ssl module's parsing of GEN_RID subject alternative name
- fields in X.509 certs.
-
-- bpo-27850: Remove 3DES from ssl module's default cipher list to counter
- measure sweet32 attack (CVE-2016-2183).
-
-- bpo-27766: Add ChaCha20 Poly1305 to ssl module's default cipher list.
- (Required OpenSSL 1.1.0 or LibreSSL).
-
-- bpo-26470: Port ssl and hashlib module to OpenSSL 1.1.0.
-
-- Remove support for passing a file descriptor to os.access. It never worked
- but previously didn't raise.
-
-- bpo-12885: Fix error when distutils encounters symlink.
-
-- bpo-27881: Fixed possible bugs when setting
- sqlite3.Connection.isolation_level. Based on patch by Xiang Zhang.
-
-- bpo-27861: Fixed a crash in sqlite3.Connection.cursor() when a factory
- creates not a cursor. Patch by Xiang Zhang.
-
-- bpo-19884: Avoid spurious output on OS X with Gnu Readline.
-
-- bpo-27706: Restore deterministic behavior of random.Random().seed() for
- string seeds using seeding version 1. Allows sequences of calls to
- random() to exactly match those obtained in Python 2. Patch by Nofar
- Schnider.
-
-- bpo-10513: Fix a regression in Connection.commit(). Statements should not
- be reset after a commit.
-
-- A new version of typing.py from https://github.com/python/typing:
- Collection (only for 3.6) (Issue #27598). Add FrozenSet to __all__
- (upstream #261). Fix crash in _get_type_vars() (upstream #259). Remove the
- dict constraint in ForwardRef._eval_type (upstream #252).
-
-- bpo-27539: Fix unnormalised ``Fraction.__pow__`` result in the case of
- negative exponent and negative base.
-
-- bpo-21718: cursor.description is now available for queries using CTEs.
-
-- bpo-2466: posixpath.ismount now correctly recognizes mount points which
- the user does not have permission to access.
-
-- bpo-27773: Correct some memory management errors server_hostname in
- _ssl.wrap_socket().
-
-- bpo-26750: unittest.mock.create_autospec() now works properly for
- subclasses of property() and other data descriptors.
-
-- In the curses module, raise an error if window.getstr() or window.instr()
- is passed a negative value.
-
-- bpo-27783: Fix possible usage of uninitialized memory in
- operator.methodcaller.
-
-- bpo-27774: Fix possible Py_DECREF on unowned object in _sre.
-
-- bpo-27760: Fix possible integer overflow in binascii.b2a_qp.
-
-- bpo-27758: Fix possible integer overflow in the _csv module for large
- record lengths.
-
-- bpo-27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the
- HTTP_PROXY variable when REQUEST_METHOD environment is set, which
- indicates that the script is in CGI mode.
-
-- bpo-27656: Do not assume sched.h defines any SCHED_* constants.
-
-- bpo-27130: In the "zlib" module, fix handling of large buffers (typically
- 4 GiB) when compressing and decompressing. Previously, inputs were
- limited to 4 GiB, and compression and decompression operations did not
- properly handle results of 4 GiB.
-
-- bpo-27533: Release GIL in nt._isdir
-
-- bpo-17711: Fixed unpickling by the persistent ID with protocol 0. Original
- patch by Alexandre Vassalotti.
-
-- bpo-27522: Avoid an unintentional reference cycle in email.feedparser.
-
-- bpo-26844: Fix error message for imp.find_module() to refer to 'path'
- instead of 'name'. Patch by Lev Maximov.
-
-- bpo-23804: Fix SSL zero-length recv() calls to not block and not raise an
- error about unclean EOF.
-
-- bpo-27466: Change time format returned by http.cookie.time2netscape,
- confirming the netscape cookie format and making it consistent with
- documentation.
-
-- bpo-26664: Fix activate.fish by removing mis-use of ``$``.
-
-- bpo-22115: Fixed tracing Tkinter variables: trace_vdelete() with wrong
- mode no longer break tracing, trace_vinfo() now always returns a list of
- pairs of strings, tracing in the "u" mode now works.
-
-- Fix a scoping issue in importlib.util.LazyLoader which triggered an
- UnboundLocalError when lazy-loading a module that was already put into
- sys.modules.
-
-- bpo-27079: Fixed curses.ascii functions isblank(), iscntrl() and
- ispunct().
-
-- bpo-26754: Some functions (compile() etc) accepted a filename argument
- encoded as an iterable of integers. Now only strings and byte-like objects
- are accepted.
-
-- bpo-27048: Prevents distutils failing on Windows when environment
- variables contain non-ASCII characters
-
-- bpo-27330: Fixed possible leaks in the ctypes module.
-
-- bpo-27238: Got rid of bare excepts in the turtle module. Original patch
- by Jelle Zijlstra.
-
-- bpo-27122: When an exception is raised within the context being managed by
- a contextlib.ExitStack() and one of the exit stack generators catches and
- raises it in a chain, do not re-raise the original exception when exiting,
- let the new chained one through. This avoids the :pep:`479` bug described
- in issue25782.
-
-- bpo-26386: Fixed ttk.TreeView selection operations with item id's
- containing spaces.
-
-- bpo-16182: Fix various functions in the "readline" module to use the
- locale encoding, and fix get_begidx() and get_endidx() to return code
- point indexes.
-
-- bpo-27392: Add loop.connect_accepted_socket(). Patch by Jim Fulton.
-
-- bpo-27930: Improved behaviour of logging.handlers.QueueListener. Thanks to
- Paulo Andrade and Petr Viktorin for the analysis and patch.
-
-- bpo-21201: Improves readability of multiprocessing error message. Thanks
- to Wojciech Walczak for patch.
-
-- bpo-27456: asyncio: Set TCP_NODELAY by default.
-
-- bpo-27906: Fix socket accept exhaustion during high TCP traffic. Patch by
- Kevin Conway.
-
-- bpo-28174: Handle when SO_REUSEPORT isn't properly supported. Patch by
- Seth Michael Larson.
-
-- bpo-26654: Inspect functools.partial in asyncio.Handle.__repr__. Patch by
- iceboy.
-
-- bpo-26909: Fix slow pipes IO in asyncio. Patch by INADA Naoki.
-
-- bpo-28176: Fix callbacks race in asyncio.SelectorLoop.sock_connect.
-
-- bpo-27759: Fix selectors incorrectly retain invalid file descriptors.
- Patch by Mark Williams.
-
-- bpo-28368: Refuse monitoring processes if the child watcher has no loop
- attached. Patch by Vincent Michel.
-
-- bpo-28369: Raise RuntimeError when transport's FD is used with add_reader,
- add_writer, etc.
-
-- bpo-28370: Speedup asyncio.StreamReader.readexactly. Patch by Коренберг
- Марк.
-
-- bpo-28371: Deprecate passing asyncio.Handles to run_in_executor.
-
-- bpo-28372: Fix asyncio to support formatting of non-python coroutines.
-
-- bpo-28399: Remove UNIX socket from FS before binding. Patch by Коренберг
- Марк.
-
-- bpo-27972: Prohibit Tasks to await on themselves.
-
-- bpo-26923: Fix asyncio.Gather to refuse being cancelled once all children
- are done. Patch by Johannes Ebke.
-
-- bpo-26796: Don't configure the number of workers for default threadpool
- executor. Initial patch by Hans Lawrenz.
-
-- bpo-28600: Optimize loop.call_soon().
-
-- bpo-28613: Fix get_event_loop() return the current loop if called from
- coroutines/callbacks.
-
-- bpo-28639: Fix inspect.isawaitable to always return bool Patch by Justin
- Mayfield.
-
-- bpo-28652: Make loop methods reject socket kinds they do not support.
-
-- bpo-28653: Fix a refleak in functools.lru_cache.
-
-- bpo-28703: Fix asyncio.iscoroutinefunction to handle Mock objects.
-
-- bpo-24142: Reading a corrupt config file left the parser in an invalid
- state. Original patch by Florian Höch.
-
-- bpo-28990: Fix SSL hanging if connection is closed before handshake
- completed. (Patch by HoHo-Ho)
-
-IDLE
-----
-
-- bpo-15308: Add 'interrupt execution' (^C) to Shell menu. Patch by Roger
- Serwy, updated by Bayard Randel.
-
-- bpo-27922: Stop IDLE tests from 'flashing' gui widgets on the screen.
-
-- Add version to title of IDLE help window.
-
-- bpo-25564: In section on IDLE -- console differences, mention that using
- exec means that __builtins__ is defined for each statement.
-
-- bpo-27714: text_textview and test_autocomplete now pass when re-run in the
- same process. This occurs when test_idle fails when run with the -w
- option but without -jn. Fix warning from test_config.
-
-- bpo-25507: IDLE no longer runs buggy code because of its tkinter imports.
- Users must include the same imports required to run directly in Python.
-
-- bpo-27452: add line counter and crc to IDLE configHandler test dump.
-
-- bpo-27365: Allow non-ascii chars in IDLE NEWS.txt, for contributor names.
-
-- bpo-27245: IDLE: Cleanly delete custom themes and key bindings.
- Previously, when IDLE was started from a console or by import, a cascade
- of warnings was emitted. Patch by Serhiy Storchaka.
-
-C API
------
-
-- bpo-28808: PyUnicode_CompareWithASCIIString() now never raises exceptions.
-
-- bpo-26754: PyUnicode_FSDecoder() accepted a filename argument encoded as
- an iterable of integers. Now only strings and bytes-like objects are
- accepted.
-
-Documentation
--------------
-
-- bpo-28513: Documented command-line interface of zipfile.
-
-Tests
------
-
-- bpo-28950: Disallow -j0 to be combined with -T/-l/-M in regrtest command
- line arguments.
-
-- bpo-28666: Now test.support.rmtree is able to remove unwritable or
- unreadable directories.
-
-- bpo-23839: Various caches now are cleared before running every test file.
-
-- bpo-28409: regrtest: fix the parser of command line arguments.
-
-- bpo-27787: Call gc.collect() before checking each test for "dangling
- threads", since the dangling threads are weak references.
-
-- bpo-27369: In test_pyexpat, avoid testing an error message detail that
- changed in Expat 2.2.0.
-
-Tools/Demos
------------
-
-- bpo-27952: Get Tools/scripts/fixcid.py working with Python 3 and the
- current "re" module, avoid invalid Python backslash escapes, and fix a bug
- parsing escaped C quote signs.
-
-- bpo-27332: Fixed the type of the first argument of module-level functions
- generated by Argument Clinic. Patch by Petr Viktorin.
-
-- bpo-27418: Fixed Tools/importbench/importbench.py.
-
-Windows
--------
-
-- bpo-28251: Improvements to help manuals on Windows.
-
-- bpo-28110: launcher.msi has different product codes between 32-bit and
- 64-bit
-
-- bpo-25144: Ensures TargetDir is set before continuing with custom install.
-
-- bpo-27469: Adds a shell extension to the launcher so that drag and drop
- works correctly.
-
-- bpo-27309: Enabled proper Windows styles in python[w].exe manifest.
-
-Build
------
-
-- bpo-29080: Removes hard dependency on hg.exe from PCBuild/build.bat
-
-- bpo-23903: Added missed names to PC/python3.def.
-
-- bpo-10656: Fix out-of-tree building on AIX. Patch by Tristan Carel and
- Michael Haubenwallner.
-
-- bpo-26359: Rename --with-optimiations to --enable-optimizations.
-
-- bpo-28444: Fix missing extensions modules when cross compiling.
-
-- bpo-28248: Update Windows build and OS X installers to use OpenSSL 1.0.2j.
-
-- bpo-28258: Fixed build with Estonian locale (python-config and distclean
- targets in Makefile). Patch by Arfrever Frehtes Taifersar Arahesis.
-
-- bpo-26661: setup.py now detects system libffi with multiarch wrapper.
-
-- bpo-28066: Fix the logic that searches build directories for generated
- include files when building outside the source tree.
-
-- bpo-15819: Remove redundant include search directory option for building
- outside the source tree.
-
-- bpo-27566: Fix clean target in freeze makefile (patch by Lisa Roach)
-
-- bpo-27705: Update message in validate_ucrtbase.py
-
-- bpo-27983: Cause lack of llvm-profdata tool when using clang as required
- for PGO linking to be a configure time error rather than make time when
- --with-optimizations is enabled. Also improve our ability to find the
- llvm-profdata tool on MacOS and some Linuxes.
-
-- bpo-26307: The profile-opt build now applies PGO to the built-in modules.
-
-- bpo-26359: Add the --with-optimizations configure flag.
-
-- bpo-27713: Suppress spurious build warnings when updating importlib's
- bootstrap files. Patch by Xiang Zhang
-
-- bpo-25825: Correct the references to Modules/python.exp and ld_so_aix,
- which are required on AIX. This updates references to an installation
- path that was changed in 3.2a4, and undoes changed references to the build
- tree that were made in 3.5.0a1.
-
-- bpo-27453: CPP invocation in configure must use CPPFLAGS. Patch by Chi
- Hsuan Yen.
-
-- bpo-27641: The configure script now inserts comments into the makefile to
- prevent the pgen and _freeze_importlib executables from being
- cross-compiled.
-
-- bpo-26662: Set PYTHON_FOR_GEN in configure as the Python program to be
- used for file generation during the build.
-
-- bpo-10910: Avoid C++ compilation errors on FreeBSD and OS X. Also update
- FreedBSD version checks for the original ctype UTF-8 workaround.
-
-- bpo-28676: Prevent missing 'getentropy' declaration warning on macOS.
- Patch by Gareth Rees.
-
-
-What's New in Python 3.5.2 final?
-=================================
-
-*Release date: 2016-06-26*
-
-Core and Builtins
------------------
-
-- bpo-26930: Update Windows builds to use OpenSSL 1.0.2h.
-
-Tests
------
-
-- bpo-26867: Ubuntu's openssl OP_NO_SSLv3 is forced on by default; fix test.
-
-IDLE
-----
-
-- bpo-27365: Allow non-ascii in idlelib/NEWS.txt - minimal part for 3.5.2.
-
-
-What's New in Python 3.5.2 release candidate 1?
-===============================================
-
-*Release date: 2016-06-12*
-
-Security
---------
-
-- bpo-26556: Update expat to 2.1.1, fixes CVE-2015-1283.
-
-- Fix TLS stripping vulnerability in smtplib, CVE-2016-0772. Reported by
- Team Oststrom
-
-- bpo-26839: On Linux, :func:`os.urandom` now calls ``getrandom()`` with
- ``GRND_NONBLOCK`` to fall back on reading ``/dev/urandom`` if the urandom
- entropy pool is not initialized yet. Patch written by Colm Buckley.
-
-- bpo-26657: Fix directory traversal vulnerability with http.server on
- Windows. This fixes a regression that was introduced in 3.3.4rc1 and
- 3.4.0rc1. Based on patch by Philipp Hagemeister.
-
-- bpo-26313: ssl.py _load_windows_store_certs fails if windows cert store is
- empty. Patch by Baji.
-
-- bpo-25939: On Windows open the cert store readonly in
- ssl.enum_certificates.
-
-Core and Builtins
------------------
-
-- bpo-27066: Fixed SystemError if a custom opener (for open()) returns a
- negative number without setting an exception.
-
-- bpo-20041: Fixed TypeError when frame.f_trace is set to None. Patch by
- Xavier de Gaye.
-
-- bpo-26168: Fixed possible refleaks in failing Py_BuildValue() with the "N"
- format unit.
-
-- bpo-26991: Fix possible refleak when creating a function with annotations.
-
-- bpo-27039: Fixed bytearray.remove() for values greater than 127. Patch by
- Joe Jevnik.
-
-- bpo-23640: int.from_bytes() no longer bypasses constructors for
- subclasses.
-
-- bpo-26811: gc.get_objects() no longer contains a broken tuple with NULL
- pointer.
-
-- bpo-20120: Use RawConfigParser for .pypirc parsing, removing support for
- interpolation unintentionally added with move to Python 3. Behavior no
- longer does any interpolation in .pypirc files, matching behavior in
- Python 2.7 and Setuptools 19.0.
-
-- bpo-26659: Make the builtin slice type support cycle collection.
-
-- bpo-26718: super.__init__ no longer leaks memory if called multiple times.
- NOTE: A direct call of super.__init__ is not endorsed!
-
-- bpo-25339: PYTHONIOENCODING now has priority over locale in setting the
- error handler for stdin and stdout.
-
-- bpo-26494: Fixed crash on iterating exhausting iterators. Affected classes
- are generic sequence iterators, iterators of str, bytes, bytearray, list,
- tuple, set, frozenset, dict, OrderedDict, corresponding views and
- os.scandir() iterator.
-
-- bpo-26581: If coding cookie is specified multiple times on a line in
- Python source code file, only the first one is taken to account.
-
-- bpo-26464: Fix str.translate() when string is ASCII and first replacements
- removes character, but next replacement uses a non-ASCII character or a
- string longer than 1 character. Regression introduced in Python 3.5.0.
-
-- bpo-22836: Ensure exception reports from PyErr_Display() and
- PyErr_WriteUnraisable() are sensible even when formatting them produces
- secondary errors. This affects the reports produced by
- sys.__excepthook__() and when __del__() raises an exception.
-
-- bpo-26302: Correct behavior to reject comma as a legal character for
- cookie names.
-
-- bpo-4806: Avoid masking the original TypeError exception when using star
- (``*``) unpacking in function calls. Based on patch by Hagen Fürstenau
- and Daniel Urban.
-
-- bpo-27138: Fix the doc comment for FileFinder.find_spec().
-
-- bpo-26154: Add a new private _PyThreadState_UncheckedGet() function to get
- the current Python thread state, but don't issue a fatal error if it is
- NULL. This new function must be used instead of accessing directly the
- _PyThreadState_Current variable. The variable is no more exposed since
- Python 3.5.1 to hide the exact implementation of atomic C types, to avoid
- compiler issues.
-
-- bpo-26194: Deque.insert() gave odd results for bounded deques that had
- reached their maximum size. Now an IndexError will be raised when
- attempting to insert into a full deque.
-
-- bpo-25843: When compiling code, don't merge constants if they are equal
- but have a different types. For example, ``f1, f2 = lambda: 1, lambda:
- 1.0`` is now correctly compiled to two different functions: ``f1()``
- returns ``1`` (``int``) and ``f2()`` returns ``1.0`` (``int``), even if
- ``1`` and ``1.0`` are equal.
-
-- bpo-22995: [UPDATE] Comment out the one of the pickleability tests in
- _PyObject_GetState() due to regressions observed in Cython-based projects.
-
-- bpo-25961: Disallowed null characters in the type name.
-
-- bpo-25973: Fix segfault when an invalid nonlocal statement binds a name
- starting with two underscores.
-
-- bpo-22995: Instances of extension types with a state that aren't
- subclasses of list or dict and haven't implemented any pickle-related
- methods (__reduce__, __reduce_ex__, __getnewargs__, __getnewargs_ex__, or
- __getstate__), can no longer be pickled. Including memoryview.
-
-- bpo-20440: Massive replacing unsafe attribute setting code with special
- macro Py_SETREF.
-
-- bpo-25766: Special method __bytes__() now works in str subclasses.
-
-- bpo-25421: __sizeof__ methods of builtin types now use dynamic basic size.
- This allows sys.getsize() to work correctly with their subclasses with
- __slots__ defined.
-
-- bpo-25709: Fixed problem with in-place string concatenation and utf-8
- cache.
-
-- bpo-27147: Mention :pep:`420` in the importlib docs.
-
-- bpo-24097: Fixed crash in object.__reduce__() if slot name is freed inside
- __getattr__.
-
-- bpo-24731: Fixed crash on converting objects with special methods
- __bytes__, __trunc__, and __float__ returning instances of subclasses of
- bytes, int, and float to subclasses of bytes, int, and float
- correspondingly.
-
-- bpo-26478: Fix semantic bugs when using binary operators with dictionary
- views and tuples.
-
-- bpo-26171: Fix possible integer overflow and heap corruption in
- zipimporter.get_data().
-
-- bpo-25660: Fix TAB key behaviour in REPL with readline.
-
-- bpo-25887: Raise a RuntimeError when a coroutine object is awaited more
- than once.
-
-- bpo-27243: Update the __aiter__ protocol: instead of returning an
- awaitable that resolves to an asynchronous iterator, the asynchronous
- iterator should be returned directly. Doing the former will trigger a
- PendingDeprecationWarning.
-
-Library
--------
-
-- bpo-21386: Implement missing IPv4Address.is_global property. It was
- documented since 07a5610bae9d. Initial patch by Roger Luethi.
-
-- bpo-20900: distutils register command now decodes HTTP responses
- correctly. Initial patch by ingrid.
-
-- A new version of typing.py provides several new classes and features:
- @overload outside stubs, Reversible, DefaultDict, Text, ContextManager,
- Type[], NewType(), TYPE_CHECKING, and numerous bug fixes (note that some
- of the new features are not yet implemented in mypy or other static
- analyzers). Also classes for :pep:`492` (Awaitable, AsyncIterable,
- AsyncIterator) have been added (in fact they made it into 3.5.1 but were
- never mentioned).
-
-- bpo-25738: Stop http.server.BaseHTTPRequestHandler.send_error() from
- sending a message body for 205 Reset Content. Also, don't send Content
- header fields in responses that don't have a body. Patch by Susumu
- Koshiba.
-
-- bpo-21313: Fix the "platform" module to tolerate when sys.version contains
- truncated build information.
-
-- bpo-27164: In the zlib module, allow decompressing raw Deflate streams
- with a predefined zdict. Based on patch by Xiang Zhang.
-
-- bpo-24291: Fix wsgiref.simple_server.WSGIRequestHandler to completely
- write data to the client. Previously it could do partial writes and
- truncate data. Also, wsgiref.handler.ServerHandler can now handle stdout
- doing partial writes, but this is deprecated.
-
-- bpo-26809: Add ``__all__`` to :mod:`string`. Patch by Emanuel Barry.
-
-- bpo-26373: subprocess.Popen.communicate now correctly ignores
- BrokenPipeError when the child process dies before .communicate() is
- called in more/all circumstances.
-
-- bpo-21776: distutils.upload now correctly handles HTTPError. Initial patch
- by Claudiu Popa.
-
-- bpo-27114: Fix SSLContext._load_windows_store_certs fails with
- PermissionError
-
-- bpo-18383: Avoid creating duplicate filters when using filterwarnings and
- simplefilter. Based on patch by Alex Shkop.
-
-- bpo-27057: Fix os.set_inheritable() on Android, ioctl() is blocked by
- SELinux and fails with EACCESS. The function now falls back to fcntl().
- Patch written by Michał Bednarski.
-
-- bpo-27014: Fix infinite recursion using typing.py. Thanks to Kalle Tuure!
-
-- bpo-14132: Fix urllib.request redirect handling when the target only has a
- query string. Original fix by Ján Janech.
-
-- bpo-17214: The "urllib.request" module now percent-encodes non-ASCII bytes
- found in redirect target URLs. Some servers send Location header fields
- with non-ASCII bytes, but "http.client" requires the request target to be
- ASCII-encodable, otherwise a UnicodeEncodeError is raised. Based on patch
- by Christian Heimes.
-
-- bpo-26892: Honor debuglevel flag in urllib.request.HTTPHandler. Patch
- contributed by Chi Hsuan Yen.
-
-- bpo-22274: In the subprocess module, allow stderr to be redirected to
- stdout even when stdout is not redirected. Patch by Akira Li.
-
-- bpo-26807: mock_open 'files' no longer error on readline at end of file.
- Patch from Yolanda Robla.
-
-- bpo-25745: Fixed leaking a userptr in curses panel destructor.
-
-- bpo-26977: Removed unnecessary, and ignored, call to sum of squares helper
- in statistics.pvariance.
-
-- bpo-26881: The modulefinder module now supports extended opcode arguments.
-
-- bpo-23815: Fixed crashes related to directly created instances of types in
- _tkinter and curses.panel modules.
-
-- bpo-17765: weakref.ref() no longer silently ignores keyword arguments.
- Patch by Georg Brandl.
-
-- bpo-26873: xmlrpc now raises ResponseError on unsupported type tags
- instead of silently return incorrect result.
-
-- bpo-26711: Fixed the comparison of plistlib.Data with other types.
-
-- bpo-24114: Fix an uninitialized variable in `ctypes.util`. The bug only
- occurs on SunOS when the ctypes implementation searches for the `crle`
- program. Patch by Xiang Zhang. Tested on SunOS by Kees Bos.
-
-- bpo-26864: In urllib.request, change the proxy bypass host checking
- against no_proxy to be case-insensitive, and to not match unrelated host
- names that happen to have a bypassed hostname as a suffix. Patch by Xiang
- Zhang.
-
-- bpo-26634: recursive_repr() now sets __qualname__ of wrapper. Patch by
- Xiang Zhang.
-
-- bpo-26804: urllib.request will prefer lower_case proxy environment
- variables over UPPER_CASE or Mixed_Case ones. Patch contributed by
- Hans-Peter Jansen.
-
-- bpo-26837: assertSequenceEqual() now correctly outputs non-stringified
- differing items (like bytes in the -b mode). This affects
- assertListEqual() and assertTupleEqual().
-
-- bpo-26041: Remove "will be removed in Python 3.7" from deprecation
- messages of platform.dist() and platform.linux_distribution(). Patch by
- Kumaripaba Miyurusara Athukorala.
-
-- bpo-26822: itemgetter, attrgetter and methodcaller objects no longer
- silently ignore keyword arguments.
-
-- bpo-26733: Disassembling a class now disassembles class and static
- methods. Patch by Xiang Zhang.
-
-- bpo-26801: Fix error handling in :func:`shutil.get_terminal_size`, catch
- :exc:`AttributeError` instead of :exc:`NameError`. Patch written by
- Emanuel Barry.
-
-- bpo-24838: tarfile's ustar and gnu formats now correctly calculate name
- and link field limits for multibyte character encodings like utf-8.
-
-- bpo-26717: Stop encoding Latin-1-ized WSGI paths with UTF-8. Patch by
- Anthony Sottile.
-
-- bpo-26735: Fix :func:`os.urandom` on Solaris 11.3 and newer when reading
- more than 1,024 bytes: call ``getrandom()`` multiple times with a limit of
- 1024 bytes per call.
-
-- bpo-16329: Add .webm to mimetypes.types_map. Patch by Giampaolo Rodola'.
-
-- bpo-13952: Add .csv to mimetypes.types_map. Patch by Geoff Wilson.
-
-- bpo-26709: Fixed Y2038 problem in loading binary PLists.
-
-- bpo-23735: Handle terminal resizing with Readline 6.3+ by installing our
- own SIGWINCH handler. Patch by Eric Price.
-
-- bpo-26586: In http.server, respond with "413 Request header fields too
- large" if there are too many header fields to parse, rather than killing
- the connection and raising an unhandled exception. Patch by Xiang Zhang.
-
-- bpo-22854: Change BufferedReader.writable() and BufferedWriter.readable()
- to always return False.
-
-- bpo-25195: Fix a regression in mock.MagicMock. _Call is a subclass of
- tuple (changeset 3603bae63c13 only works for classes) so we need to
- implement __ne__ ourselves. Patch by Andrew Plummer.
-
-- bpo-26644: Raise ValueError rather than SystemError when a negative length
- is passed to SSLSocket.recv() or read().
-
-- bpo-23804: Fix SSL recv(0) and read(0) methods to return zero bytes
- instead of up to 1024.
-
-- bpo-26616: Fixed a bug in datetime.astimezone() method.
-
-- bpo-21925: :func:`warnings.formatwarning` now catches exceptions on
- ``linecache.getline(...)`` to be able to log :exc:`ResourceWarning`
- emitted late during the Python shutdown process.
-
-- bpo-24266: Ctrl+C during Readline history search now cancels the search
- mode when compiled with Readline 7.
-
-- bpo-26560: Avoid potential ValueError in BaseHandler.start_response.
- Initial patch by Peter Inglesby.
-
-- bpo-26569: Fix :func:`pyclbr.readmodule` and :func:`pyclbr.readmodule_ex`
- to support importing packages.
-
-- bpo-26499: Account for remaining Content-Length in HTTPResponse.readline()
- and read1(). Based on patch by Silent Ghost. Also document that
- HTTPResponse now supports these methods.
-
-- bpo-25320: Handle sockets in directories unittest discovery is scanning.
- Patch from Victor van den Elzen.
-
-- bpo-16181: cookiejar.http2time() now returns None if year is higher than
- datetime.MAXYEAR.
-
-- bpo-26513: Fixes platform module detection of Windows Server
-
-- bpo-23718: Fixed parsing time in week 0 before Jan 1. Original patch by
- Tamás Bence Gedai.
-
-- bpo-20589: Invoking Path.owner() and Path.group() on Windows now raise
- NotImplementedError instead of ImportError.
-
-- bpo-26177: Fixed the keys() method for Canvas and Scrollbar widgets.
-
-- bpo-15068: Got rid of excessive buffering in the fileinput module. The
- bufsize parameter is no longer used.
-
-- bpo-2202: Fix UnboundLocalError in
- AbstractDigestAuthHandler.get_algorithm_impls. Initial patch by Mathieu
- Dupuy.
-
-- bpo-25718: Fixed pickling and copying the accumulate() iterator with total
- is None.
-
-- bpo-26475: Fixed debugging output for regular expressions with the (?x)
- flag.
-
-- bpo-26457: Fixed the subnets() methods in IP network classes for the case
- when resulting prefix length is equal to maximal prefix length. Based on
- patch by Xiang Zhang.
-
-- bpo-26385: Remove the file if the internal open() call in
- NamedTemporaryFile() fails. Patch by Silent Ghost.
-
-- bpo-26402: Fix XML-RPC client to retry when the server shuts down a
- persistent connection. This was a regression related to the new
- http.client.RemoteDisconnected exception in 3.5.0a4.
-
-- bpo-25913: Leading ``<~`` is optional now in base64.a85decode() with
- adobe=True. Patch by Swati Jaiswal.
-
-- bpo-26186: Remove an invalid type check in importlib.util.LazyLoader.
-
-- bpo-26367: importlib.__import__() raises SystemError like
- builtins.__import__() when ``level`` is specified but without an
- accompanying package specified.
-
-- bpo-26309: In the "socketserver" module, shut down the request (closing
- the connected socket) when verify_request() returns false. Patch by Aviv
- Palivoda.
-
-- bpo-25995: os.walk() no longer uses FDs proportional to the tree depth.
-
-- bpo-26117: The os.scandir() iterator now closes file descriptor not only
- when the iteration is finished, but when it was failed with error.
-
-- bpo-25911: Restored support of bytes paths in os.walk() on Windows.
-
-- bpo-26045: Add UTF-8 suggestion to error message when posting a
- non-Latin-1 string with http.client.
-
-- bpo-12923: Reset FancyURLopener's redirect counter even if there is an
- exception. Based on patches by Brian Brazil and Daniel Rocco.
-
-- bpo-25945: Fixed a crash when unpickle the functools.partial object with
- wrong state. Fixed a leak in failed functools.partial constructor. "args"
- and "keywords" attributes of functools.partial have now always types tuple
- and dict correspondingly.
-
-- bpo-26202: copy.deepcopy() now correctly copies range() objects with
- non-atomic attributes.
-
-- bpo-23076: Path.glob() now raises a ValueError if it's called with an
- invalid pattern. Patch by Thomas Nyberg.
-
-- bpo-19883: Fixed possible integer overflows in zipimport.
-
-- bpo-26227: On Windows, getnameinfo(), gethostbyaddr() and
- gethostbyname_ex() functions of the socket module now decode the hostname
- from the ANSI code page rather than UTF-8.
-
-- bpo-26147: xmlrpc now works with strings not encodable with used non-UTF-8
- encoding.
-
-- bpo-25935: Garbage collector now breaks reference loops with OrderedDict.
-
-- bpo-16620: Fixed AttributeError in msilib.Directory.glob().
-
-- bpo-26013: Added compatibility with broken protocol 2 pickles created in
- old Python 3 versions (3.4.3 and lower).
-
-- bpo-25850: Use cross-compilation by default for 64-bit Windows.
-
-- bpo-17633: Improve zipimport's support for namespace packages.
-
-- bpo-24705: Fix sysconfig._parse_makefile not expanding ${} vars appearing
- before $() vars.
-
-- bpo-22138: Fix mock.patch behavior when patching descriptors. Restore
- original values after patching. Patch contributed by Sean McCully.
-
-- bpo-25672: In the ssl module, enable the SSL_MODE_RELEASE_BUFFERS mode
- option if it is safe to do so.
-
-- bpo-26012: Don't traverse into symlinks for ``**`` pattern in
- pathlib.Path.[r]glob().
-
-- bpo-24120: Ignore PermissionError when traversing a tree with
- pathlib.Path.[r]glob(). Patch by Ulrich Petri.
-
-- bpo-25447: fileinput now uses sys.stdin as-is if it does not have a buffer
- attribute (restores backward compatibility).
-
-- bpo-25447: Copying the lru_cache() wrapper object now always works,
- independently from the type of the wrapped object (by returning the
- original object unchanged).
-
-- bpo-24103: Fixed possible use after free in ElementTree.XMLPullParser.
-
-- bpo-25860: os.fwalk() no longer skips remaining directories when error
- occurs. Original patch by Samson Lee.
-
-- bpo-25914: Fixed and simplified OrderedDict.__sizeof__.
-
-- bpo-25902: Fixed various refcount issues in ElementTree iteration.
-
-- bpo-25717: Restore the previous behaviour of tolerating most fstat()
- errors when opening files. This was a regression in 3.5a1, and stopped
- anonymous temporary files from working in special cases.
-
-- bpo-24903: Fix regression in number of arguments compileall accepts when
- '-d' is specified. The check on the number of arguments has been dropped
- completely as it never worked correctly anyway.
-
-- bpo-25764: In the subprocess module, preserve any exception caused by
- fork() failure when preexec_fn is used.
-
-- bpo-6478: _strptime's regexp cache now is reset after changing timezone
- with time.tzset().
-
-- bpo-14285: When executing a package with the "python -m package" option,
- and package initialization fails, a proper traceback is now reported. The
- "runpy" module now lets exceptions from package initialization pass back
- to the caller, rather than raising ImportError.
-
-- bpo-19771: Also in runpy and the "-m" option, omit the irrelevant message
- ". . . is a package and cannot be directly executed" if the package could
- not even be initialized (e.g. due to a bad ``*.pyc`` file).
-
-- bpo-25177: Fixed problem with the mean of very small and very large
- numbers. As a side effect, statistics.mean and statistics.variance should
- be significantly faster.
-
-- bpo-25718: Fixed copying object with state with boolean value is false.
-
-- bpo-10131: Fixed deep copying of minidom documents. Based on patch by
- Marian Ganisin.
-
-- bpo-25725: Fixed a reference leak in pickle.loads() when unpickling
- invalid data including tuple instructions.
-
-- bpo-25663: In the Readline completer, avoid listing duplicate global
- names, and search the global namespace before searching builtins.
-
-- bpo-25688: Fixed file leak in ElementTree.iterparse() raising an error.
-
-- bpo-23914: Fixed SystemError raised by unpickler on broken pickle data.
-
-- bpo-25691: Fixed crash on deleting ElementTree.Element attributes.
-
-- bpo-25624: ZipFile now always writes a ZIP_STORED header for directory
- entries. Patch by Dingyuan Wang.
-
-- Skip getaddrinfo if host is already resolved. Patch by A. Jesse Jiryu
- Davis.
-
-- bpo-26050: Add asyncio.StreamReader.readuntil() method. Patch by Марк
- Коренберг.
-
-- bpo-25924: Avoid unnecessary serialization of getaddrinfo(3) calls on OS X
- versions 10.5 or higher. Original patch by A. Jesse Jiryu Davis.
-
-- bpo-26406: Avoid unnecessary serialization of getaddrinfo(3) calls on
- current versions of OpenBSD and NetBSD. Patch by A. Jesse Jiryu Davis.
-
-- bpo-26848: Fix asyncio/subprocess.communicate() to handle empty input.
- Patch by Jack O'Connor.
-
-- bpo-27040: Add loop.get_exception_handler method
-
-- bpo-27041: asyncio: Add loop.create_future method
-
-- bpo-27223: asyncio: Fix _read_ready and _write_ready to respect
- _conn_lost. Patch by Łukasz Langa.
-
-- bpo-22970: asyncio: Fix inconsistency cancelling Condition.wait. Patch by
- David Coles.
-
-IDLE
-----
-
-- bpo-5124: Paste with text selected now replaces the selection on X11. This
- matches how paste works on Windows, Mac, most modern Linux apps, and ttk
- widgets. Original patch by Serhiy Storchaka.
-
-- bpo-24759: Make clear in idlelib.idle_test.__init__ that the directory is
- a private implementation of test.test_idle and tool for maintainers.
-
-- bpo-27196: Stop 'ThemeChanged' warnings when running IDLE tests. These
- persisted after other warnings were suppressed in #20567. Apply Serhiy
- Storchaka's update_idletasks solution to four test files. Record this
- additional advice in idle_test/README.txt
-
-- bpo-20567: Revise idle_test/README.txt with advice about avoiding tk
- warning messages from tests. Apply advice to several IDLE tests.
-
-- bpo-27117: Make colorizer htest and turtledemo work with dark themes. Move
- code for configuring text widget colors to a new function.
-
-- bpo-26673: When tk reports font size as 0, change to size 10. Such fonts
- on Linux prevented the configuration dialog from opening.
-
-- bpo-21939: Add test for IDLE's percolator. Original patch by Saimadhav
- Heblikar.
-
-- bpo-21676: Add test for IDLE's replace dialog. Original patch by Saimadhav
- Heblikar.
-
-- bpo-18410: Add test for IDLE's search dialog. Original patch by Westley
- Martínez.
-
-- bpo-21703: Add test for IDLE's undo delegator. Original patch by Saimadhav
- Heblikar .
-
-- bpo-27044: Add ConfigDialog.remove_var_callbacks to stop memory leaks.
-
-- bpo-23977: Add more asserts to test_delegator.
-
-- bpo-20640: Add tests for idlelib.configHelpSourceEdit. Patch by Saimadhav
- Heblikar.
-
-- In the 'IDLE-console differences' section of the IDLE doc, clarify how
- running with IDLE affects sys.modules and the standard streams.
-
-- bpo-25507: fix incorrect change in IOBinding that prevented printing.
- Augment IOBinding htest to include all major IOBinding functions.
-
-- bpo-25905: Revert unwanted conversion of ' to ’ RIGHT SINGLE QUOTATION
- MARK in README.txt and open this and NEWS.txt with 'ascii'. Re-encode
- CREDITS.txt to utf-8 and open it with 'utf-8'.
-
-Documentation
--------------
-
-- bpo-19489: Moved the search box from the sidebar to the header and footer
- of each page. Patch by Ammar Askar.
-
-- bpo-24136: Document the new :pep:`448` unpacking syntax of 3.5.
-
-- bpo-26736: Used HTTPS for external links in the documentation if possible.
-
-- bpo-6953: Rework the Readline module documentation to group related
- functions together, and add more details such as what underlying Readline
- functions and variables are accessed.
-
-- bpo-23606: Adds note to ctypes documentation regarding cdll.msvcrt.
-
-- bpo-25500: Fix documentation to not claim that __import__ is searched for
- in the global scope.
-
-- bpo-26014: Update 3.x packaging documentation: * "See also" links to the
- new docs are now provided in the legacy pages * links to setuptools
- documentation have been updated
-
-Tests
------
-
-- bpo-21916: Added tests for the turtle module. Patch by ingrid, Gregory
- Loyse and Jelle Zijlstra.
-
-- bpo-26523: The multiprocessing thread pool (multiprocessing.dummy.Pool)
- was untested.
-
-- bpo-26015: Added new tests for pickling iterators of mutable sequences.
-
-- bpo-26325: Added test.support.check_no_resource_warning() to check that no
- ResourceWarning is emitted.
-
-- bpo-25940: Changed test_ssl to use self-signed.pythontest.net. This
- avoids relying on svn.python.org, which recently changed root certificate.
-
-- bpo-25616: Tests for OrderedDict are extracted from test_collections into
- separate file test_ordered_dict.
-
-- bpo-26583: Skip test_timestamp_overflow in test_import if bytecode files
- cannot be written.
-
-Build
------
-
-- bpo-26884: Fix linking extension modules for cross builds. Patch by Xavier
- de Gaye.
-
-- bpo-22359: Disable the rules for running _freeze_importlib and pgen when
- cross-compiling. The output of these programs is normally saved with the
- source code anyway, and is still regenerated when doing a native build.
- Patch by Xavier de Gaye.
-
-- bpo-27229: Fix the cross-compiling pgen rule for in-tree builds. Patch by
- Xavier de Gaye.
-
-- bpo-21668: Link audioop, _datetime, _ctypes_test modules to libm, except
- on Mac OS X. Patch written by Xavier de Gaye.
-
-- bpo-25702: A --with-lto configure option has been added that will enable
- link time optimizations at build time during a make profile-opt. Some
- compilers and toolchains are known to not produce stable code when using
- LTO, be sure to test things thoroughly before relying on it. It can
- provide a few % speed up over profile-opt alone.
-
-- bpo-26624: Adds validation of ucrtbase[d].dll version with warning for old
- versions.
-
-- bpo-17603: Avoid error about nonexistent fileblocks.o file by using a
- lower-level check for st_blocks in struct stat.
-
-- bpo-26079: Fixing the build output folder for tix-8.4.3.6. Patch by Bjoern
- Thiel.
-
-- bpo-26465: Update Windows builds to use OpenSSL 1.0.2g.
-
-- bpo-24421: Compile Modules/_math.c once, before building extensions.
- Previously it could fail to compile properly if the math and cmath builds
- were concurrent.
-
-- bpo-25348: Added ``--pgo`` and ``--pgo-job`` arguments to
- ``PCbuild\build.bat`` for building with Profile-Guided Optimization. The
- old ``PCbuild\build_pgo.bat`` script is now deprecated, and simply calls
- ``PCbuild\build.bat --pgo %*``.
-
-- bpo-25827: Add support for building with ICC to ``configure``, including a
- new ``--with-icc`` flag.
-
-- bpo-25696: Fix installation of Python on UNIX with make -j9.
-
-- bpo-26930: Update OS X 10.5+ 32-bit-only installer to build and link with
- OpenSSL 1.0.2h.
-
-- bpo-26268: Update Windows builds to use OpenSSL 1.0.2f.
-
-- bpo-25136: Support Apple Xcode 7's new textual SDK stub libraries.
-
-- bpo-24324: Do not enable unreachable code warnings when using gcc as the
- option does not work correctly in older versions of gcc and has been
- silently removed as of gcc-4.5.
-
-Windows
--------
-
-- bpo-27053: Updates make_zip.py to correctly generate library ZIP file.
-
-- bpo-26268: Update the prepare_ssl.py script to handle OpenSSL releases
- that don't include the contents of the include directory (that is, 1.0.2e
- and later).
-
-- bpo-26071: bdist_wininst created binaries fail to start and find 32bit
- Python
-
-- bpo-26073: Update the list of magic numbers in launcher
-
-- bpo-26065: Excludes venv from library when generating embeddable distro.
-
-- bpo-17500: Remove unused and outdated icons. (See also:
- https://github.com/python/pythondotorg/issues/945)
-
-Tools/Demos
------------
-
-- bpo-26799: Fix python-gdb.py: don't get C types once when the Python code
- is loaded, but get C types on demand. The C types can change if
- python-gdb.py is loaded before the Python executable. Patch written by
- Thomas Ilsche.
-
-- bpo-26271: Fix the Freeze tool to properly use flags passed through
- configure. Patch by Daniel Shaulov.
-
-- bpo-26489: Add dictionary unpacking support to Tools/parser/unparse.py.
- Patch by Guo Ci Teo.
-
-- bpo-26316: Fix variable name typo in Argument Clinic.
-
-
-What's New in Python 3.5.1 final?
-=================================
-
-*Release date: 2015-12-06*
-
-Core and Builtins
------------------
-
-- bpo-25709: Fixed problem with in-place string concatenation and utf-8
- cache.
-
-Windows
--------
-
-- bpo-25715: Python 3.5.1 installer shows wrong upgrade path and incorrect
- logic for launcher detection.
-
-
-What's New in Python 3.5.1 release candidate 1?
-===============================================
-
-*Release date: 2015-11-22*
-
-Core and Builtins
------------------
-
-- bpo-25630: Fix a possible segfault during argument parsing in functions
- that accept filesystem paths.
-
-- bpo-23564: Fixed a partially broken sanity check in the _posixsubprocess
- internals regarding how fds_to_pass were passed to the child. The bug had
- no actual impact as subprocess.py already avoided it.
-
-- bpo-25388: Fixed tokenizer crash when processing undecodable source code
- with a null byte.
-
-- bpo-25462: The hash of the key now is calculated only once in most
- operations in C implementation of OrderedDict.
-
-- bpo-22995: Default implementation of __reduce__ and __reduce_ex__ now
- rejects builtin types with not defined __new__.
-
-- bpo-25555: Fix parser and AST: fill lineno and col_offset of "arg" node
- when compiling AST from Python objects.
-
-- bpo-24802: Avoid buffer overreads when int(), float(), compile(), exec()
- and eval() are passed bytes-like objects. These objects are not
- necessarily terminated by a null byte, but the functions assumed they
- were.
-
-- bpo-24726: Fixed a crash and leaking NULL in repr() of OrderedDict that
- was mutated by direct calls of dict methods.
-
-- bpo-25449: Iterating OrderedDict with keys with unstable hash now raises
- KeyError in C implementations as well as in Python implementation.
-
-- bpo-25395: Fixed crash when highly nested OrderedDict structures were
- garbage collected.
-
-- bpo-25274: sys.setrecursionlimit() now raises a RecursionError if the new
- recursion limit is too low depending at the current recursion depth.
- Modify also the "lower-water mark" formula to make it monotonic. This mark
- is used to decide when the overflowed flag of the thread state is reset.
-
-- bpo-24402: Fix input() to prompt to the redirected stdout when
- sys.stdout.fileno() fails.
-
-- bpo-24806: Prevent builtin types that are not allowed to be subclassed
- from being subclassed through multiple inheritance.
-
-- bpo-24848: Fixed a number of bugs in UTF-7 decoding of misformed data.
-
-- bpo-25280: Import trace messages emitted in verbose (-v) mode are no
- longer formatted twice.
-
-- bpo-25003: On Solaris 11.3 or newer, os.urandom() now uses the getrandom()
- function instead of the getentropy() function. The getentropy() function
- is blocking to generate very good quality entropy, os.urandom() doesn't
- need such high-quality entropy.
-
-- bpo-25182: The stdprinter (used as sys.stderr before the io module is
- imported at startup) now uses the backslashreplace error handler.
-
-- bpo-25131: Make the line number and column offset of set/dict literals and
- comprehensions correspond to the opening brace.
-
-- bpo-25150: Hide the private _Py_atomic_xxx symbols from the public
- Python.h header to fix a compilation error with OpenMP.
- PyThreadState_GET() becomes an alias to PyThreadState_Get() to avoid ABI
- incompatibilities.
-
-Library
--------
-
-- bpo-25626: Change three zlib functions to accept sizes that fit in
- Py_ssize_t, but internally cap those sizes to UINT_MAX. This resolves a
- regression in 3.5 where GzipFile.read() failed to read chunks larger than
- 2 or 4 GiB. The change affects the zlib.Decompress.decompress()
- max_length parameter, the zlib.decompress() bufsize parameter, and the
- zlib.Decompress.flush() length parameter.
-
-- bpo-25583: Avoid incorrect errors raised by os.makedirs(exist_ok=True)
- when the OS gives priority to errors such as EACCES over EEXIST.
-
-- bpo-25593: Change semantics of EventLoop.stop() in asyncio.
-
-- bpo-6973: When we know a subprocess.Popen process has died, do not allow
- the send_signal(), terminate(), or kill() methods to do anything as they
- could potentially signal a different process.
-
-- bpo-25590: In the Readline completer, only call getattr() once per
- attribute.
-
-- bpo-25498: Fix a crash when garbage-collecting ctypes objects created by
- wrapping a memoryview. This was a regression made in 3.5a1. Based on
- patch by Eryksun.
-
-- bpo-25584: Added "escape" to the __all__ list in the glob module.
-
-- bpo-25584: Fixed recursive glob() with patterns starting with ``**``.
-
-- bpo-25446: Fix regression in smtplib's AUTH LOGIN support.
-
-- bpo-18010: Fix the pydoc web server's module search function to handle
- exceptions from importing packages.
-
-- bpo-25554: Got rid of circular references in regular expression parsing.
-
-- bpo-25510: fileinput.FileInput.readline() now returns b'' instead of '' at
- the end if the FileInput was opened with binary mode. Patch by Ryosuke
- Ito.
-
-- bpo-25503: Fixed inspect.getdoc() for inherited docstrings of properties.
- Original patch by John Mark Vandenberg.
-
-- bpo-25515: Always use os.urandom as a source of randomness in uuid.uuid4.
-
-- bpo-21827: Fixed textwrap.dedent() for the case when largest common
- whitespace is a substring of smallest leading whitespace. Based on patch
- by Robert Li.
-
-- bpo-25447: The lru_cache() wrapper objects now can be copied and pickled
- (by returning the original object unchanged).
-
-- bpo-25390: typing: Don't crash on Union[str, Pattern].
-
-- bpo-25441: asyncio: Raise error from drain() when socket is closed.
-
-- bpo-25410: Cleaned up and fixed minor bugs in C implementation of
- OrderedDict.
-
-- bpo-25411: Improved Unicode support in SMTPHandler through better use of
- the email package. Thanks to user simon04 for the patch.
-
-- bpo-25407: Remove mentions of the formatter module being removed in Python
- 3.6.
-
-- bpo-25406: Fixed a bug in C implementation of OrderedDict.move_to_end()
- that caused segmentation fault or hang in iterating after moving several
- items to the start of ordered dict.
-
-- bpo-25364: zipfile now works in threads disabled builds.
-
-- bpo-25328: smtpd's SMTPChannel now correctly raises a ValueError if both
- decode_data and enable_SMTPUTF8 are set to true.
-
-- bpo-25316: distutils raises OSError instead of DistutilsPlatformError when
- MSVC is not installed.
-
-- bpo-25380: Fixed protocol for the STACK_GLOBAL opcode in
- pickletools.opcodes.
-
-- bpo-23972: Updates asyncio datagram create method allowing reuseport and
- reuseaddr socket options to be set prior to binding the socket. Mirroring
- the existing asyncio create_server method the reuseaddr option for
- datagram sockets defaults to True if the O/S is 'posix' (except if the
- platform is Cygwin). Patch by Chris Laws.
-
-- bpo-25304: Add asyncio.run_coroutine_threadsafe(). This lets you submit a
- coroutine to a loop from another thread, returning a
- concurrent.futures.Future. By Vincent Michel.
-
-- bpo-25232: Fix CGIRequestHandler to split the query from the URL at the
- first question mark (?) rather than the last. Patch from Xiang Zhang.
-
-- bpo-24657: Prevent CGIRequestHandler from collapsing slashes in the query
- part of the URL as if it were a path. Patch from Xiang Zhang.
-
-- bpo-24483: C implementation of functools.lru_cache() now calculates key's
- hash only once.
-
-- bpo-22958: Constructor and update method of weakref.WeakValueDictionary
- now accept the self and the dict keyword arguments.
-
-- bpo-22609: Constructor of collections.UserDict now accepts the self
- keyword argument.
-
-- bpo-25111: Fixed comparison of traceback.FrameSummary.
-
-- bpo-25262: Added support for BINBYTES8 opcode in Python implementation of
- unpickler. Highest 32 bits of 64-bit size for BINUNICODE8 and BINBYTES8
- opcodes no longer silently ignored on 32-bit platforms in C
- implementation.
-
-- bpo-25034: Fix string.Formatter problem with auto-numbering and nested
- format_specs. Patch by Anthon van der Neut.
-
-- bpo-25233: Rewrite the guts of asyncio.Queue and asyncio.Semaphore to be
- more understandable and correct.
-
-- bpo-25203: Failed readline.set_completer_delims() no longer left the
- module in inconsistent state.
-
-- bpo-23600: Default implementation of tzinfo.fromutc() was returning wrong
- results in some cases.
-
-- bpo-23329: Allow the ssl module to be built with older versions of
- LibreSSL.
-
-- Prevent overflow in _Unpickler_Read.
-
-- bpo-25047: The XML encoding declaration written by Element Tree now
- respects the letter case given by the user. This restores the ability to
- write encoding names in uppercase like "UTF-8", which worked in Python 2.
-
-- bpo-25135: Make deque_clear() safer by emptying the deque before clearing.
- This helps avoid possible reentrancy issues.
-
-- bpo-19143: platform module now reads Windows version from kernel32.dll to
- avoid compatibility shims.
-
-- bpo-25092: Fix datetime.strftime() failure when errno was already set to
- EINVAL.
-
-- bpo-23517: Fix rounding in fromtimestamp() and utcfromtimestamp() methods
- of datetime.datetime: microseconds are now rounded to nearest with ties
- going to nearest even integer (ROUND_HALF_EVEN), instead of being rounding
- towards minus infinity (ROUND_FLOOR). It's important that these methods
- use the same rounding mode than datetime.timedelta to keep the property:
- (datetime(1970,1,1) + timedelta(seconds=t)) ==
- datetime.utcfromtimestamp(t). It also the rounding mode used by
- round(float) for example.
-
-- bpo-25155: Fix datetime.datetime.now() and datetime.datetime.utcnow() on
- Windows to support date after year 2038. It was a regression introduced in
- Python 3.5.0.
-
-- bpo-25108: Omitted internal frames in traceback functions print_stack(),
- format_stack(), and extract_stack() called without arguments.
-
-- bpo-25118: Fix a regression of Python 3.5.0 in os.waitpid() on Windows.
-
-- bpo-24684: socket.socket.getaddrinfo() now calls
- PyUnicode_AsEncodedString() instead of calling the encode() method of the
- host, to handle correctly custom string with an encode() method which
- doesn't return a byte string. The encoder of the IDNA codec is now called
- directly instead of calling the encode() method of the string.
-
-- bpo-25060: Correctly compute stack usage of the BUILD_MAP opcode.
-
-- bpo-24857: Comparing call_args to a long sequence now correctly returns a
- boolean result instead of raising an exception. Patch by A Kaptur.
-
-- bpo-23144: Make sure that HTMLParser.feed() returns all the data, even
- when convert_charrefs is True.
-
-- bpo-24982: shutil.make_archive() with the "zip" format now adds entries
- for directories (including empty directories) in ZIP file.
-
-- bpo-25019: Fixed a crash caused by setting non-string key of expat parser.
- Based on patch by John Leitch.
-
-- bpo-16180: Exit pdb if file has syntax error, instead of trapping user in
- an infinite loop. Patch by Xavier de Gaye.
-
-- bpo-24891: Fix a race condition at Python startup if the file descriptor
- of stdin (0), stdout (1) or stderr (2) is closed while Python is creating
- sys.stdin, sys.stdout and sys.stderr objects. These attributes are now set
- to None if the creation of the object failed, instead of raising an
- OSError exception. Initial patch written by Marco Paolini.
-
-- bpo-24992: Fix error handling and a race condition (related to garbage
- collection) in collections.OrderedDict constructor.
-
-- bpo-24881: Fixed setting binary mode in Python implementation of FileIO on
- Windows and Cygwin. Patch from Akira Li.
-
-- bpo-25578: Fix (another) memory leak in SSLSocket.getpeercer().
-
-- bpo-25530: Disable the vulnerable SSLv3 protocol by default when creating
- ssl.SSLContext.
-
-- bpo-25569: Fix memory leak in SSLSocket.getpeercert().
-
-- bpo-25471: Sockets returned from accept() shouldn't appear to be
- nonblocking.
-
-- bpo-25319: When threading.Event is reinitialized, the underlying condition
- should use a regular lock rather than a recursive lock.
-
-- bpo-21112: Fix regression in unittest.expectedFailure on subclasses. Patch
- from Berker Peksag.
-
-- bpo-24764: cgi.FieldStorage.read_multi() now ignores the Content-Length
- header in part headers. Patch written by Peter Landry and reviewed by
- Pierre Quentel.
-
-- bpo-24913: Fix overrun error in deque.index(). Found by John Leitch and
- Bryce Darling.
-
-- bpo-24774: Fix docstring in http.server.test. Patch from Chiu-Hsiang Hsu.
-
-- bpo-21159: Improve message in
- configparser.InterpolationMissingOptionError. Patch from Łukasz Langa.
-
-- bpo-20362: Honour TestCase.longMessage correctly in assertRegex. Patch
- from Ilia Kurenkov.
-
-- bpo-23572: Fixed functools.singledispatch on classes with falsy
- metaclasses. Patch by Ethan Furman.
-
-- asyncio: ensure_future() now accepts awaitable objects.
-
-IDLE
-----
-
-- bpo-15348: Stop the debugger engine (normally in a user process) before
- closing the debugger window (running in the IDLE process). This prevents
- the RuntimeErrors that were being caught and ignored.
-
-- bpo-24455: Prevent IDLE from hanging when a) closing the shell while the
- debugger is active (15347); b) closing the debugger with the [X] button
- (15348); and c) activating the debugger when already active (24455). The
- patch by Mark Roseman does this by making two changes. 1. Suspend and
- resume the gui.interaction method with the tcl vwait mechanism intended
- for this purpose (instead of root.mainloop & .quit). 2. In gui.run, allow
- any existing interaction to terminate first.
-
-- Change 'The program' to 'Your program' in an IDLE 'kill program?' message
- to make it clearer that the program referred to is the currently running
- user program, not IDLE itself.
-
-- bpo-24750: Improve the appearance of the IDLE editor window status bar.
- Patch by Mark Roseman.
-
-- bpo-25313: Change the handling of new built-in text color themes to better
- address the compatibility problem introduced by the addition of IDLE Dark.
- Consistently use the revised idleConf.CurrentTheme everywhere in idlelib.
-
-- bpo-24782: Extension configuration is now a tab in the IDLE Preferences
- dialog rather than a separate dialog. The former tabs are now a sorted
- list. Patch by Mark Roseman.
-
-- bpo-22726: Re-activate the config dialog help button with some content
- about the other buttons and the new IDLE Dark theme.
-
-- bpo-24820: IDLE now has an 'IDLE Dark' built-in text color theme. It is
- more or less IDLE Classic inverted, with a cobalt blue background.
- Strings, comments, keywords, ... are still green, red, orange, ... . To
- use it with IDLEs released before November 2015, hit the 'Save as New
- Custom Theme' button and enter a new name, such as 'Custom Dark'. The
- custom theme will work with any IDLE release, and can be modified.
-
-- bpo-25224: README.txt is now an idlelib index for IDLE developers and
- curious users. The previous user content is now in the IDLE doc chapter.
- 'IDLE' now means 'Integrated Development and Learning Environment'.
-
-- bpo-24820: Users can now set breakpoint colors in Settings -> Custom
- Highlighting. Original patch by Mark Roseman.
-
-- bpo-24972: Inactive selection background now matches active selection
- background, as configured by users, on all systems. Found items are now
- always highlighted on Windows. Initial patch by Mark Roseman.
-
-- bpo-24570: Idle: make calltip and completion boxes appear on Macs affected
- by a tk regression. Initial patch by Mark Roseman.
-
-- bpo-24988: Idle ScrolledList context menus (used in debugger) now work on
- Mac Aqua. Patch by Mark Roseman.
-
-- bpo-24801: Make right-click for context menu work on Mac Aqua. Patch by
- Mark Roseman.
-
-- bpo-25173: Associate tkinter messageboxes with a specific widget. For Mac
- OSX, make them a 'sheet'. Patch by Mark Roseman.
-
-- bpo-25198: Enhance the initial html viewer now used for Idle Help.
- Properly indent fixed-pitch text (patch by Mark Roseman). Give code
- snippet a very Sphinx-like light blueish-gray background. Re-use initial
- width and height set by users for shell and editor. When the Table of
- Contents (TOC) menu is used, put the section header at the top of the
- screen.
-
-- bpo-25225: Condense and rewrite Idle doc section on text colors.
-
-- bpo-21995: Explain some differences between IDLE and console Python.
-
-- bpo-22820: Explain need for *print* when running file from Idle editor.
-
-- bpo-25224: Doc: augment Idle feature list and no-subprocess section.
-
-- bpo-25219: Update doc for Idle command line options. Some were missing and
- notes were not correct.
-
-- bpo-24861: Most of idlelib is private and subject to change. Use
- idleib.idle.* to start Idle. See idlelib.__init__.__doc__.
-
-- bpo-25199: Idle: add synchronization comments for future maintainers.
-
-- bpo-16893: Replace help.txt with help.html for Idle doc display. The new
- idlelib/help.html is rstripped Doc/build/html/library/idle.html. It looks
- better than help.txt and will better document Idle as released. The
- tkinter html viewer that works for this file was written by Mark Roseman.
- The now unused EditorWindow.HelpDialog class and helt.txt file are
- deprecated.
-
-- bpo-24199: Deprecate unused idlelib.idlever with possible removal in 3.6.
-
-- bpo-24790: Remove extraneous code (which also create 2 & 3 conflicts).
-
-Documentation
--------------
-
-- bpo-22558: Add remaining doc links to source code for Python-coded
- modules. Patch by Yoni Lavi.
-
-- bpo-12067: Rewrite Comparisons section in the Expressions chapter of the
- language reference. Some of the details of comparing mixed types were
- incorrect or ambiguous. NotImplemented is only relevant at a lower level
- than the Expressions chapter. Added details of comparing range() objects,
- and default behaviour and consistency suggestions for user-defined
- classes. Patch from Andy Maier.
-
-- bpo-24952: Clarify the default size argument of stack_size() in the
- "threading" and "_thread" modules. Patch from Mattip.
-
-- bpo-23725: Overhaul tempfile docs. Note deprecated status of mktemp. Patch
- from Zbigniew Jędrzejewski-Szmek.
-
-- bpo-24808: Update the types of some PyTypeObject fields. Patch by Joseph
- Weston.
-
-- bpo-22812: Fix unittest discovery examples. Patch from Pam McA'Nulty.
-
-Tests
------
-
-- bpo-25449: Added tests for OrderedDict subclasses.
-
-- bpo-25099: Make test_compileall not fail when an entry on sys.path cannot
- be written to (commonly seen in administrative installs on Windows).
-
-- bpo-23919: Prevents assert dialogs appearing in the test suite.
-
-- ``PCbuild\rt.bat`` now accepts an unlimited number of arguments to pass
- along to regrtest.py. Previously there was a limit of 9.
-
-Build
------
-
-- bpo-24915: Add LLVM support for PGO builds and use the test suite to
- generate the profile data. Initial patch by Alecsandru Patrascu of Intel.
-
-- bpo-24910: Windows MSIs now have unique display names.
-
-- bpo-24986: It is now possible to build Python on Windows without errors
- when external libraries are not available.
-
-Windows
--------
-
-- bpo-25450: Updates shortcuts to start Python in installation directory.
-
-- bpo-25164: Changes default all-users install directory to match per-user
- directory.
-
-- bpo-25143: Improves installer error messages for unsupported platforms.
-
-- bpo-25163: Display correct directory in installer when using non-default
- settings.
-
-- bpo-25361: Disables use of SSE2 instructions in Windows 32-bit build
-
-- bpo-25089: Adds logging to installer for case where launcher is not
- selected on upgrade.
-
-- bpo-25165: Windows uninstallation should not remove launcher if other
- versions remain
-
-- bpo-25112: py.exe launcher is missing icons
-
-- bpo-25102: Windows installer does not precompile for -O or -OO.
-
-- bpo-25081: Makes Back button in installer go back to upgrade page when
- upgrading.
-
-- bpo-25091: Increases font size of the installer.
-
-- bpo-25126: Clarifies that the non-web installer will download some
- components.
-
-- bpo-25213: Restores requestedExecutionLevel to manifest to disable UAC
- virtualization.
-
-- bpo-25022: Removed very outdated PC/example_nt/ directory.
-
-Tools/Demos
------------
-
-- bpo-25440: Fix output of python-config --extension-suffix.
-
-
-What's New in Python 3.5.0 final?
-=================================
-
-*Release date: 2015-09-13*
-
-Build
------
-
-- bpo-25071: Windows installer should not require TargetDir parameter when
- installing quietly.
-
-
-What's New in Python 3.5.0 release candidate 4?
-===============================================
-
-*Release date: 2015-09-09*
-
-Library
--------
-
-- bpo-25029: Fixes MemoryError in test_strptime.
-
-Build
------
-
-- bpo-25027: Reverts partial-static build options and adds vcruntime140.dll
- to Windows installation.
-
-
-What's New in Python 3.5.0 release candidate 3?
-===============================================
-
-*Release date: 2015-09-07*
-
-Core and Builtins
------------------
-
-- bpo-24305: Prevent import subsystem stack frames from being counted by the
- warnings.warn(stacklevel=) parameter.
-
-- bpo-24912: Prevent __class__ assignment to immutable built-in objects.
-
-- bpo-24975: Fix AST compilation for :pep:`448` syntax.
-
-Library
--------
-
-- bpo-24917: time_strftime() buffer over-read.
-
-- bpo-24748: To resolve a compatibility problem found with py2exe and
- pywin32, imp.load_dynamic() once again ignores previously loaded modules
- to support Python modules replacing themselves with extension modules.
- Patch by Petr Viktorin.
-
-- bpo-24635: Fixed a bug in typing.py where isinstance([], typing.Iterable)
- would return True once, then False on subsequent calls.
-
-- bpo-24989: Fixed buffer overread in BytesIO.readline() if a position is
- set beyond size. Based on patch by John Leitch.
-
-- bpo-24913: Fix overrun error in deque.index(). Found by John Leitch and
- Bryce Darling.
-
-
-What's New in Python 3.5.0 release candidate 2?
-===============================================
-
-*Release date: 2015-08-25*
-
-Core and Builtins
------------------
-
-- bpo-24769: Interpreter now starts properly when dynamic loading is
- disabled. Patch by Petr Viktorin.
-
-- bpo-21167: NAN operations are now handled correctly when python is
- compiled with ICC even if -fp-model strict is not specified.
-
-- bpo-24492: A "package" lacking a __name__ attribute when trying to perform
- a ``from .. import ...`` statement will trigger an ImportError instead of
- an AttributeError.
-
-Library
--------
-
-- bpo-24847: Removes vcruntime140.dll dependency from Tcl/Tk.
-
-- bpo-24839: platform._syscmd_ver raises DeprecationWarning
-
-- bpo-24867: Fix Task.get_stack() for 'async def' coroutines
-
-
-What's New in Python 3.5.0 release candidate 1?
-===============================================
-
-*Release date: 2015-08-09*
-
-Core and Builtins
------------------
-
-- bpo-24667: Resize odict in all cases that the underlying dict resizes.
-
-Library
--------
-
-- bpo-24824: Signatures of codecs.encode() and codecs.decode() now are
- compatible with pydoc.
-
-- bpo-24634: Importing uuid should not try to load libc on Windows
-
-- bpo-24798: _msvccompiler.py doesn't properly support manifests
-
-- bpo-4395: Better testing and documentation of binary operators. Patch by
- Martin Panter.
-
-- bpo-23973: Update typing.py from GitHub repo.
-
-- bpo-23004: mock_open() now reads binary data correctly when the type of
- read_data is bytes. Initial patch by Aaron Hill.
-
-- bpo-23888: Handle fractional time in cookie expiry. Patch by ssh.
-
-- bpo-23652: Make it possible to compile the select module against the libc
- headers from the Linux Standard Base, which do not include some EPOLL
- macros. Patch by Matt Frank.
-
-- bpo-22932: Fix timezones in email.utils.formatdate. Patch from Dmitry
- Shachnev.
-
-- bpo-23779: imaplib raises TypeError if authenticator tries to abort. Patch
- from Craig Holmquist.
-
-- bpo-23319: Fix ctypes.BigEndianStructure, swap correctly bytes. Patch
- written by Matthieu Gautier.
-
-- bpo-23254: Document how to close the TCPServer listening socket. Patch
- from Martin Panter.
-
-- bpo-19450: Update Windows and OS X installer builds to use SQLite 3.8.11.
-
-- bpo-17527: Add PATCH to wsgiref.validator. Patch from Luca Sbardella.
-
-- bpo-24791: Fix grammar regression for call syntax: 'g(\*a or b)'.
-
-IDLE
-----
-
-- bpo-23672: Allow Idle to edit and run files with astral chars in name.
- Patch by Mohd Sanad Zaki Rizvi.
-
-- bpo-24745: Idle editor default font. Switch from Courier to
- platform-sensitive TkFixedFont. This should not affect current customized
- font selections. If there is a problem, edit
- $HOME/.idlerc/config-main.cfg and remove 'fontxxx' entries from [Editor
- Window]. Patch by Mark Roseman.
-
-- bpo-21192: Idle editor. When a file is run, put its name in the restart
- bar. Do not print false prompts. Original patch by Adnan Umer.
-
-- bpo-13884: Idle menus. Remove tearoff lines. Patch by Roger Serwy.
-
-Documentation
--------------
-
-- bpo-24129: Clarify the reference documentation for name resolution. This
- includes removing the assumption that readers will be familiar with the
- name resolution scheme Python used prior to the introduction of lexical
- scoping for function namespaces. Patch by Ivan Levkivskyi.
-
-- bpo-20769: Improve reload() docs. Patch by Dorian Pula.
-
-- bpo-23589: Remove duplicate sentence from the FAQ. Patch by Yongzhi Pan.
-
-- bpo-24729: Correct IO tutorial to match implementation regarding encoding
- parameter to open function.
-
-Tests
------
-
-- bpo-24751: When running regrtest with the ``-w`` command line option, a
- test run is no longer marked as a failure if all tests succeed when
- re-run.
-
-
-What's New in Python 3.5.0 beta 4?
-==================================
-
-*Release date: 2015-07-26*
-
-Core and Builtins
------------------
-
-- bpo-23573: Restored optimization of bytes.rfind() and bytearray.rfind()
- for single-byte argument on Linux.
-
-- bpo-24569: Make :pep:`448` dictionary evaluation more consistent.
-
-- bpo-24583: Fix crash when set is mutated while being updated.
-
-- bpo-24407: Fix crash when dict is mutated while being updated.
-
-- bpo-24619: New approach for tokenizing async/await. As a consequence, it
- is now possible to have one-line 'async def foo(): await ..' functions.
-
-- bpo-24687: Plug refleak on SyntaxError in function parameters annotations.
-
-- bpo-15944: memoryview: Allow arbitrary formats when casting to bytes.
- Patch by Martin Panter.
-
-Library
--------
-
-- bpo-23441: rcompleter now prints a tab character instead of displaying
- possible completions for an empty word. Initial patch by Martin Sekera.
-
-- bpo-24683: Fixed crashes in _json functions called with arguments of
- inappropriate type.
-
-- bpo-21697: shutil.copytree() now correctly handles symbolic links that
- point to directories. Patch by Eduardo Seabra and Thomas Kluyver.
-
-- bpo-14373: Fixed segmentation fault when gc.collect() is called during
- constructing lru_cache (C implementation).
-
-- bpo-24695: Fix a regression in traceback.print_exception(). If
- exc_traceback is None we shouldn't print a traceback header like described
- in the documentation.
-
-- bpo-24620: Random.setstate() now validates the value of state last
- element.
-
-- bpo-22485: Fixed an issue that caused `inspect.getsource` to return
- incorrect results on nested functions.
-
-- bpo-22153: Improve unittest docs. Patch from Martin Panter and evilzero.
-
-- bpo-24580: Symbolic group references to open group in re patterns now are
- explicitly forbidden as well as numeric group references.
-
-- bpo-24206: Fixed __eq__ and __ne__ methods of inspect classes.
-
-- bpo-24631: Fixed regression in the timeit module with multiline setup.
-
-- bpo-18622: unittest.mock.mock_open().reset_mock would recurse infinitely.
- Patch from Nicola Palumbo and Laurent De Buyst.
-
-- bpo-23661: unittest.mock side_effects can now be exceptions again. This
- was a regression vs Python 3.4. Patch from Ignacio Rossi
-
-- bpo-24608: chunk.Chunk.read() now always returns bytes, not str.
-
-- bpo-18684: Fixed reading out of the buffer in the re module.
-
-- bpo-24259: tarfile now raises a ReadError if an archive is truncated
- inside a data segment.
-
-- bpo-15014: SMTP.auth() and SMTP.login() now support RFC 4954's optional
- initial-response argument to the SMTP AUTH command.
-
-- bpo-24669: Fix inspect.getsource() for 'async def' functions. Patch by Kai
- Groner.
-
-- bpo-24688: ast.get_docstring() for 'async def' functions.
-
-Build
------
-
-- bpo-24603: Update Windows builds and OS X 10.5 installer to use OpenSSL
- 1.0.2d.
-
-
-What's New in Python 3.5.0 beta 3?
-==================================
-
-*Release date: 2015-07-05*
-
-Core and Builtins
------------------
-
-- bpo-24467: Fixed possible buffer over-read in bytearray. The bytearray
- object now always allocates place for trailing null byte and it's buffer
- now is always null-terminated.
-
-- Upgrade to Unicode 8.0.0.
-
-- bpo-24345: Add Py_tp_finalize slot for the stable ABI.
-
-- bpo-24400: Introduce a distinct type for :pep:`492` coroutines; add
- types.CoroutineType, inspect.getcoroutinestate,
- inspect.getcoroutinelocals; coroutines no longer use CO_GENERATOR flag;
- sys.set_coroutine_wrapper works only for 'async def' coroutines;
- inspect.iscoroutine no longer uses collections.abc.Coroutine, it's
- intended to test for pure 'async def' coroutines only; add new opcode:
- GET_YIELD_FROM_ITER; fix generators wrapper used in types.coroutine to be
- instance of collections.abc.Generator; collections.abc.Awaitable and
- collections.abc.Coroutine can no longer be used to detect generator-based
- coroutines--use inspect.isawaitable instead.
-
-- bpo-24450: Add gi_yieldfrom to generators and cr_await to coroutines.
- Contributed by Benno Leslie and Yury Selivanov.
-
-- bpo-19235: Add new RecursionError exception. Patch by Georg Brandl.
-
-Library
--------
-
-- bpo-21750: mock_open.read_data can now be read from each instance, as it
- could in Python 3.3.
-
-- bpo-24552: Fix use after free in an error case of the _pickle module.
-
-- bpo-24514: tarfile now tolerates number fields consisting of only
- whitespace.
-
-- bpo-19176: Fixed doctype() related bugs in C implementation of
- ElementTree. A deprecation warning no longer issued by XMLParser subclass
- with default doctype() method. Direct call of doctype() now issues a
- warning. Parser's doctype() now is not called if target's doctype() is
- called. Based on patch by Martin Panter.
-
-- bpo-20387: Restore semantic round-trip correctness in tokenize/untokenize
- for tab-indented blocks.
-
-- bpo-24456: Fixed possible buffer over-read in adpcm2lin() and lin2adpcm()
- functions of the audioop module.
-
-- bpo-24336: The contextmanager decorator now works with functions with
- keyword arguments called "func" and "self". Patch by Martin Panter.
-
-- bpo-24522: Fix possible integer overflow in json accelerator module.
-
-- bpo-24489: ensure a previously set C errno doesn't disturb cmath.polar().
-
-- bpo-24408: Fixed AttributeError in measure() and metrics() methods of
- tkinter.Font.
-
-- bpo-14373: C implementation of functools.lru_cache() now can be used with
- methods.
-
-- bpo-24347: Set KeyError if PyDict_GetItemWithError returns NULL.
-
-- bpo-24348: Drop superfluous incref/decref.
-
-- bpo-24359: Check for changed OrderedDict size during iteration.
-
-- bpo-24368: Support keyword arguments in OrderedDict methods.
-
-- bpo-24362: Simplify the C OrderedDict fast nodes resize logic.
-
-- bpo-24377: Fix a ref leak in OrderedDict.__repr__.
-
-- bpo-24369: Defend against key-changes during iteration.
-
-Tests
------
-
-- bpo-24373: _testmultiphase and xxlimited now use tp_traverse and
- tp_finalize to avoid reference leaks encountered when combining tp_dealloc
- with PyType_FromSpec (see issue #16690 for details)
-
-Documentation
--------------
-
-- bpo-24458: Update documentation to cover multi-phase initialization for
- extension modules (PEP 489). Patch by Petr Viktorin.
-
-- bpo-24351: Clarify what is meant by "identifier" in the context of
- string.Template instances.
-
-Build
------
-
-- bpo-24432: Update Windows builds and OS X 10.5 installer to use OpenSSL
- 1.0.2c.
-
-
-What's New in Python 3.5.0 beta 2?
-==================================
-
-*Release date: 2015-05-31*
-
-Core and Builtins
------------------
-
-- bpo-24284: The startswith and endswith methods of the str class no longer
- return True when finding the empty string and the indexes are completely
- out of range.
-
-- bpo-24115: Update uses of PyObject_IsTrue(), PyObject_Not(),
- PyObject_IsInstance(), PyObject_RichCompareBool() and _PyDict_Contains()
- to check for and handle errors correctly.
-
-- bpo-24328: Fix importing one character extension modules.
-
-- bpo-11205: In dictionary displays, evaluate the key before the value.
-
-- bpo-24285: Fixed regression that prevented importing extension modules
- from inside packages. Patch by Petr Viktorin.
-
-Library
--------
-
-- bpo-23247: Fix a crash in the StreamWriter.reset() of CJK codecs.
-
-- bpo-24270: Add math.isclose() and cmath.isclose() functions as per
- :pep:`485`. Contributed by Chris Barker and Tal Einat.
-
-- bpo-5633: Fixed timeit when the statement is a string and the setup is
- not.
-
-- bpo-24326: Fixed audioop.ratecv() with non-default weightB argument.
- Original patch by David Moore.
-
-- bpo-16991: Add a C implementation of OrderedDict.
-
-- bpo-23934: Fix inspect.signature to fail correctly for builtin types
- lacking signature information. Initial patch by James Powell.
-
-
-What's New in Python 3.5.0 beta 1?
-==================================
-
-*Release date: 2015-05-24*
-
-Core and Builtins
------------------
-
-- bpo-24276: Fixed optimization of property descriptor getter.
-
-- bpo-24268: PEP 489: Multi-phase extension module initialization. Patch by
- Petr Viktorin.
-
-- bpo-23955: Add pyvenv.cfg option to suppress registry/environment lookup
- for generating sys.path on Windows.
-
-- bpo-24257: Fixed system error in the comparison of faked
- types.SimpleNamespace.
-
-- bpo-22939: Fixed integer overflow in iterator object. Patch by Clement
- Rouault.
-
-- bpo-23985: Fix a possible buffer overrun when deleting a slice from the
- front of a bytearray and then appending some other bytes data.
-
-- bpo-24102: Fixed exception type checking in standard error handlers.
-
-- bpo-15027: The UTF-32 encoder is now 3x to 7x faster.
-
-- bpo-23290: Optimize set_merge() for cases where the target is empty.
- (Contributed by Serhiy Storchaka.)
-
-- bpo-2292: PEP 448: Additional Unpacking Generalizations.
-
-- bpo-24096: Make warnings.warn_explicit more robust against mutation of the
- warnings.filters list.
-
-- bpo-23996: Avoid a crash when a delegated generator raises an unnormalized
- StopIteration exception. Patch by Stefan Behnel.
-
-- bpo-23910: Optimize property() getter calls. Patch by Joe Jevnik.
-
-- bpo-23911: Move path-based importlib bootstrap code to a separate frozen
- module.
-
-- bpo-24192: Fix namespace package imports.
-
-- bpo-24022: Fix tokenizer crash when processing undecodable source code.
-
-- bpo-9951: Added a hex() method to bytes, bytearray, and memoryview.
-
-- bpo-22906: PEP 479: Change StopIteration handling inside generators.
-
-- bpo-24017: PEP 492: Coroutines with async and await syntax.
-
-Library
--------
-
-- bpo-14373: Added C implementation of functools.lru_cache(). Based on
- patches by Matt Joiner and Alexey Kachayev.
-
-- bpo-24230: The tempfile module now accepts bytes for prefix, suffix and
- dir parameters and returns bytes in such situations (matching the os
- module APIs).
-
-- bpo-22189: collections.UserString now supports __getnewargs__(),
- __rmod__(), casefold(), format_map(), isprintable(), and maketrans().
- Patch by Joe Jevnik.
-
-- bpo-24244: Prevents termination when an invalid format string is
- encountered on Windows in strftime.
-
-- bpo-23973: PEP 484: Add the typing module.
-
-- bpo-23086: The collections.abc.Sequence() abstract base class added
- *start* and *stop* parameters to the index() mixin. Patch by Devin
- Jeanpierre.
-
-- bpo-20035: Replaced the ``tkinter._fix`` module used for setting up the
- Tcl/Tk environment on Windows with a private function in the ``_tkinter``
- module that makes no permanent changes to the environment.
-
-- bpo-24257: Fixed segmentation fault in sqlite3.Row constructor with faked
- cursor type.
-
-- bpo-15836: assertRaises(), assertRaisesRegex(), assertWarns() and
- assertWarnsRegex() assertments now check the type of the first argument to
- prevent possible user error. Based on patch by Daniel Wagner-Hall.
-
-- bpo-9858: Add missing method stubs to _io.RawIOBase. Patch by Laura
- Rupprecht.
-
-- bpo-22955: attrgetter, itemgetter and methodcaller objects in the operator
- module now support pickling. Added readable and evaluable repr for these
- objects. Based on patch by Josh Rosenberg.
-
-- bpo-22107: tempfile.gettempdir() and tempfile.mkdtemp() now try again when
- a directory with the chosen name already exists on Windows as well as on
- Unix. tempfile.mkstemp() now fails early if parent directory is not valid
- (not exists or is a file) on Windows.
-
-- bpo-23780: Improved error message in os.path.join() with single argument.
-
-- bpo-6598: Increased time precision and random number range in
- email.utils.make_msgid() to strengthen the uniqueness of the message ID.
-
-- bpo-24091: Fixed various crashes in corner cases in C implementation of
- ElementTree.
-
-- bpo-21931: msilib.FCICreate() now raises TypeError in the case of a bad
- argument instead of a ValueError with a bogus FCI error number. Patch by
- Jeffrey Armstrong.
-
-- bpo-13866: *quote_via* argument added to urllib.parse.urlencode.
-
-- bpo-20098: New mangle_from policy option for email, default True for
- compat32, but False for all other policies.
-
-- bpo-24211: The email library now supports RFC 6532: it can generate
- headers using utf-8 instead of encoded words.
-
-- bpo-16314: Added support for the LZMA compression in distutils.
-
-- bpo-21804: poplib now supports RFC 6856 (UTF8).
-
-- bpo-18682: Optimized pprint functions for builtin scalar types.
-
-- bpo-22027: smtplib now supports RFC 6531 (SMTPUTF8).
-
-- bpo-23488: Random generator objects now consume 2x less memory on 64-bit.
-
-- bpo-1322: platform.dist() and platform.linux_distribution() functions are
- now deprecated. Initial patch by Vajrasky Kok.
-
-- bpo-22486: Added the math.gcd() function. The fractions.gcd() function
- now is deprecated. Based on patch by Mark Dickinson.
-
-- bpo-24064: Property() docstrings are now writeable. (Patch by Berker
- Peksag.)
-
-- bpo-22681: Added support for the koi8_t encoding.
-
-- bpo-22682: Added support for the kz1048 encoding.
-
-- bpo-23796: peek and read1 methods of BufferedReader now raise ValueError
- if they called on a closed object. Patch by John Hergenroeder.
-
-- bpo-21795: smtpd now supports the 8BITMIME extension whenever the new
- *decode_data* constructor argument is set to False.
-
-- bpo-24155: optimize heapq.heapify() for better cache performance when
- heapifying large lists.
-
-- bpo-21800: imaplib now supports RFC 5161 (enable), RFC 6855
- (utf8/internationalized email) and automatically encodes non-ASCII
- usernames and passwords to UTF8.
-
-- bpo-20274: When calling a _sqlite.Connection, it now complains if passed
- any keyword arguments. Previously it silently ignored them.
-
-- bpo-20274: Remove ignored and erroneous "kwargs" parameters from three
- METH_VARARGS methods on _sqlite.Connection.
-
-- bpo-24134: assertRaises(), assertRaisesRegex(), assertWarns() and
- assertWarnsRegex() checks now emits a deprecation warning when callable is
- None or keyword arguments except msg is passed in the context manager
- mode.
-
-- bpo-24018: Add a collections.abc.Generator abstract base class.
- Contributed by Stefan Behnel.
-
-- bpo-23880: Tkinter's getint() and getdouble() now support Tcl_Obj.
- Tkinter's getdouble() now supports any numbers (in particular int).
-
-- bpo-22619: Added negative limit support in the traceback module. Based on
- patch by Dmitry Kazakov.
-
-- bpo-24094: Fix possible crash in json.encode with poorly behaved dict
- subclasses.
-
-- bpo-9246: On POSIX, os.getcwd() now supports paths longer than 1025 bytes.
- Patch written by William Orr.
-
-- bpo-17445: add difflib.diff_bytes() to support comparison of byte strings
- (fixes a regression from Python 2).
-
-- bpo-23917: Fall back to sequential compilation when ProcessPoolExecutor
- doesn't exist. Patch by Claudiu Popa.
-
-- bpo-23008: Fixed resolving attributes with boolean value is False in
- pydoc.
-
-- Fix asyncio issue 235: LifoQueue and PriorityQueue's put didn't increment
- unfinished tasks (this bug was introduced when JoinableQueue was merged
- with Queue).
-
-- bpo-23908: os functions now reject paths with embedded null character on
- Windows instead of silently truncating them.
-
-- bpo-23728: binascii.crc_hqx() could return an integer outside of the range
- 0-0xffff for empty data.
-
-- bpo-23887: urllib.error.HTTPError now has a proper repr() representation.
- Patch by Berker Peksag.
-
-- asyncio: New event loop APIs: set_task_factory() and get_task_factory().
-
-- asyncio: async() function is deprecated in favour of ensure_future().
-
-- bpo-24178: asyncio.Lock, Condition, Semaphore, and BoundedSemaphore
- support new 'async with' syntax. Contributed by Yury Selivanov.
-
-- bpo-24179: Support 'async for' for asyncio.StreamReader. Contributed by
- Yury Selivanov.
-
-- bpo-24184: Add AsyncIterator and AsyncIterable ABCs to collections.abc.
- Contributed by Yury Selivanov.
-
-- bpo-22547: Implement informative __repr__ for inspect.BoundArguments.
- Contributed by Yury Selivanov.
-
-- bpo-24190: Implement inspect.BoundArgument.apply_defaults() method.
- Contributed by Yury Selivanov.
-
-- bpo-20691: Add 'follow_wrapped' argument to
- inspect.Signature.from_callable() and inspect.signature(). Contributed by
- Yury Selivanov.
-
-- bpo-24248: Deprecate inspect.Signature.from_function() and
- inspect.Signature.from_builtin().
-
-- bpo-23898: Fix inspect.classify_class_attrs() to support attributes with
- overloaded __eq__ and __bool__. Patch by Mike Bayer.
-
-- bpo-24298: Fix inspect.signature() to correctly unwrap wrappers around
- bound methods.
-
-IDLE
-----
-
-- bpo-23184: remove unused names and imports in idlelib. Initial patch by Al
- Sweigart.
-
-Tests
------
-
-- bpo-21520: test_zipfile no longer fails if the word 'bad' appears anywhere
- in the name of the current directory.
-
-- bpo-9517: Move script_helper into the support package. Patch by Christie
- Wilson.
-
-Documentation
--------------
-
-- bpo-22155: Add File Handlers subsection with createfilehandler to tkinter
- doc. Remove obsolete example from FAQ. Patch by Martin Panter.
-
-- bpo-24029: Document the name binding behavior for submodule imports.
-
-- bpo-24077: Fix typo in man page for -I command option: -s, not -S
-
-Tools/Demos
------------
-
-- bpo-24000: Improved Argument Clinic's mapping of converters to legacy
- "format units". Updated the documentation to match.
-
-- bpo-24001: Argument Clinic converters now use accept={type} instead of
- types={'type'} to specify the types the converter accepts.
-
-- bpo-23330: h2py now supports arbitrary filenames in #include.
-
-- bpo-24031: make patchcheck now supports git checkouts, too.
-
-
-What's New in Python 3.5.0 alpha 4?
-===================================
-
-*Release date: 2015-04-19*
-
-Core and Builtins
------------------
-
-- bpo-22980: Under Linux, GNU/KFreeBSD and the Hurd, C extensions now
- include the architecture triplet in the extension name, to make it easy to
- test builds for different ABIs in the same working tree. Under OS X, the
- extension name now includes :pep:`3149`-style information.
-
-- bpo-22631: Added Linux-specific socket constant CAN_RAW_FD_FRAMES. Patch
- courtesy of Joe Jevnik.
-
-- bpo-23731: Implement :pep:`488`: removal of .pyo files.
-
-- bpo-23726: Don't enable GC for user subclasses of non-GC types that don't
- add any new fields. Patch by Eugene Toder.
-
-- bpo-23309: Avoid a deadlock at shutdown if a daemon thread is aborted
- while it is holding a lock to a buffered I/O object, and the main thread
- tries to use the same I/O object (typically stdout or stderr). A fatal
- error is emitted instead.
-
-- bpo-22977: Fixed formatting Windows error messages on Wine. Patch by
- Martin Panter.
-
-- bpo-23466: %c, %o, %x, and %X in bytes formatting now raise TypeError on
- non-integer input.
-
-- bpo-24044: Fix possible null pointer dereference in list.sort in out of
- memory conditions.
-
-- bpo-21354: PyCFunction_New function is exposed by python DLL again.
-
-Library
--------
-
-- bpo-23840: tokenize.open() now closes the temporary binary file on error
- to fix a resource warning.
-
-- bpo-16914: new debuglevel 2 in smtplib adds timestamps to debug output.
-
-- bpo-7159: urllib.request now supports sending auth credentials
- automatically after the first 401. This enhancement is a superset of the
- enhancement from issue #19494 and supersedes that change.
-
-- bpo-23703: Fix a regression in urljoin() introduced in 901e4e52b20a. Patch
- by Demian Brecht.
-
-- bpo-4254: Adds _curses.update_lines_cols(). Patch by Arnon Yaari
-
-- bpo-19933: Provide default argument for ndigits in round. Patch by
- Vajrasky Kok.
-
-- bpo-23193: Add a numeric_owner parameter to tarfile.TarFile.extract and
- tarfile.TarFile.extractall. Patch by Michael Vogt and Eric Smith.
-
-- bpo-23342: Add a subprocess.run() function than returns a CalledProcess
- instance for a more consistent API than the existing call* functions.
-
-- bpo-21217: inspect.getsourcelines() now tries to compute the start and end
- lines from the code object, fixing an issue when a lambda function is used
- as decorator argument. Patch by Thomas Ballinger and Allison Kaptur.
-
-- bpo-24521: Fix possible integer overflows in the pickle module.
-
-- bpo-22931: Allow '[' and ']' in cookie values.
-
-- The keywords attribute of functools.partial is now always a dictionary.
-
-- bpo-23811: Add missing newline to the PyCompileError error message. Patch
- by Alex Shkop.
-
-- bpo-21116: Avoid blowing memory when allocating a multiprocessing shared
- array that's larger than 50% of the available RAM. Patch by Médéric
- Boquien.
-
-- bpo-22982: Improve BOM handling when seeking to multiple positions of a
- writable text file.
-
-- bpo-23464: Removed deprecated asyncio JoinableQueue.
-
-- bpo-23529: Limit the size of decompressed data when reading from GzipFile,
- BZ2File or LZMAFile. This defeats denial of service attacks using
- compressed bombs (i.e. compressed payloads which decompress to a huge
- size). Patch by Martin Panter and Nikolaus Rath.
-
-- bpo-21859: Added Python implementation of io.FileIO.
-
-- bpo-23865: close() methods in multiple modules now are idempotent and more
- robust at shutdown. If they need to release multiple resources, all are
- released even if errors occur.
-
-- bpo-23400: Raise same exception on both Python 2 and 3 if sem_open is not
- available. Patch by Davin Potts.
-
-- bpo-10838: The subprocess now module includes SubprocessError and
- TimeoutError in its list of exported names for the users wild enough to
- use ``from subprocess import *``.
-
-- bpo-23411: Added DefragResult, ParseResult, SplitResult,
- DefragResultBytes, ParseResultBytes, and SplitResultBytes to
- urllib.parse.__all__. Patch by Martin Panter.
-
-- bpo-23881: urllib.request.ftpwrapper constructor now closes the socket if
- the FTP connection failed to fix a ResourceWarning.
-
-- bpo-23853: :meth:`socket.socket.sendall` does no more reset the socket
- timeout each time data is sent successfully. The socket timeout is now the
- maximum total duration to send all data.
-
-- bpo-22721: An order of multiline pprint output of set or dict containing
- orderable and non-orderable elements no longer depends on iteration order
- of set or dict.
-
-- bpo-15133: _tkinter.tkapp.getboolean() now supports Tcl_Obj and always
- returns bool. tkinter.BooleanVar now validates input values (accepted
- bool, int, str, and Tcl_Obj). tkinter.BooleanVar.get() now always returns
- bool.
-
-- bpo-10590: xml.sax.parseString() now supports string argument.
-
-- bpo-23338: Fixed formatting ctypes error messages on Cygwin. Patch by
- Makoto Kato.
-
-- bpo-15582: inspect.getdoc() now follows inheritance chains.
-
-- bpo-2175: SAX parsers now support a character stream of InputSource
- object.
-
-- bpo-16840: Tkinter now supports 64-bit integers added in Tcl 8.4 and
- arbitrary precision integers added in Tcl 8.5.
-
-- bpo-23834: Fix socket.sendto(), use the C Py_ssize_t type to store the
- result of sendto() instead of the C int type.
-
-- bpo-23618: :meth:`socket.socket.connect` now waits until the connection
- completes instead of raising :exc:`InterruptedError` if the connection is
- interrupted by signals, signal handlers don't raise an exception and the
- socket is blocking or has a timeout. :meth:`socket.socket.connect` still
- raise :exc:`InterruptedError` for non-blocking sockets.
-
-- bpo-21526: Tkinter now supports new boolean type in Tcl 8.5.
-
-- bpo-23836: Fix the faulthandler module to handle reentrant calls to its
- signal handlers.
-
-- bpo-23838: linecache now clears the cache and returns an empty result on
- MemoryError.
-
-- bpo-10395: Added os.path.commonpath(). Implemented in posixpath and
- ntpath. Based on patch by Rafik Draoui.
-
-- bpo-23611: Serializing more "lookupable" objects (such as unbound methods
- or nested classes) now are supported with pickle protocols < 4.
-
-- bpo-13583: sqlite3.Row now supports slice indexing.
-
-- bpo-18473: Fixed 2to3 and 3to2 compatible pickle mappings. Fixed
- ambiguous reverse mappings. Added many new mappings. Import mapping is
- no longer applied to modules already mapped with full name mapping.
-
-- bpo-23485: select.select() is now retried automatically with the
- recomputed timeout when interrupted by a signal, except if the signal
- handler raises an exception. This change is part of the :pep:`475`.
-
-- bpo-23752: When built from an existing file descriptor, io.FileIO() now
- only calls fstat() once. Before fstat() was called twice, which was not
- necessary.
-
-- bpo-23704: collections.deque() objects now support __add__, __mul__, and
- __imul__().
-
-- bpo-23171: csv.Writer.writerow() now supports arbitrary iterables.
-
-- bpo-23745: The new email header parser now handles duplicate MIME
- parameter names without error, similar to how get_param behaves.
-
-- bpo-22117: Fix os.utime(), it now rounds the timestamp towards minus
- infinity (-inf) instead of rounding towards zero.
-
-- bpo-23310: Fix MagicMock's initializer to work with __methods__, just like
- configure_mock(). Patch by Kasia Jachim.
-
-Build
------
-
-- bpo-23817: FreeBSD now uses "1.0" in the SOVERSION as other operating
- systems, instead of just "1".
-
-- bpo-23501: Argument Clinic now generates code into separate files by
- default.
-
-Tests
------
-
-- bpo-23799: Added test.support.start_threads() for running and cleaning up
- multiple threads.
-
-- bpo-22390: test.regrtest now emits a warning if temporary files or
- directories are left after running a test.
-
-Tools/Demos
------------
-
-- bpo-18128: pygettext now uses standard +NNNN format in the
- POT-Creation-Date header.
-
-- bpo-23935: Argument Clinic's understanding of format units accepting
- bytes, bytearrays, and buffers is now consistent with both the
- documentation and the implementation.
-
-- bpo-23944: Argument Clinic now wraps long impl prototypes at column 78.
-
-- bpo-20586: Argument Clinic now ensures that functions without docstrings
- have signatures.
-
-- bpo-23492: Argument Clinic now generates argument parsing code with
- PyArg_Parse instead of PyArg_ParseTuple if possible.
-
-- bpo-23500: Argument Clinic is now smarter about generating the "#ifndef"
- (empty) definition of the methoddef macro: it's only generated once, even
- if Argument Clinic processes the same symbol multiple times, and it's
- emitted at the end of all processing rather than immediately after the
- first use.
-
-C API
------
-
-- bpo-23998: PyImport_ReInitLock() now checks for lock allocation error
-
-
-What's New in Python 3.5.0 alpha 3?
-===================================
-
-*Release date: 2015-03-28*
-
-Core and Builtins
------------------
-
-- bpo-23573: Increased performance of string search operations (str.find,
- str.index, str.count, the in operator, str.split, str.partition) with
- arguments of different kinds (UCS1, UCS2, UCS4).
-
-- bpo-23753: Python doesn't support anymore platforms without stat() or
- fstat(), these functions are always required.
-
-- bpo-23681: The -b option now affects comparisons of bytes with int.
-
-- bpo-23632: Memoryviews now allow tuple indexing (including for
- multi-dimensional memoryviews).
-
-- bpo-23192: Fixed generator lambdas. Patch by Bruno Cauet.
-
-- bpo-23629: Fix the default __sizeof__ implementation for variable-sized
- objects.
-
-Library
--------
-
-- bpo-14260: The groupindex attribute of regular expression pattern object
- now is non-modifiable mapping.
-
-- bpo-23792: Ignore KeyboardInterrupt when the pydoc pager is active. This
- mimics the behavior of the standard unix pagers, and prevents pipepager
- from shutting down while the pager itself is still running.
-
-- bpo-23775: pprint() of OrderedDict now outputs the same representation as
- repr().
-
-- bpo-23765: Removed IsBadStringPtr calls in ctypes
-
-- bpo-22364: Improved some re error messages using regex for hints.
-
-- bpo-23742: ntpath.expandvars() no longer loses unbalanced single quotes.
-
-- bpo-21717: The zipfile.ZipFile.open function now supports 'x' (exclusive
- creation) mode.
-
-- bpo-21802: The reader in BufferedRWPair now is closed even when closing
- writer failed in BufferedRWPair.close().
-
-- bpo-23622: Unknown escapes in regular expressions that consist of ``'\'``
- and ASCII letter now raise a deprecation warning and will be forbidden in
- Python 3.6.
-
-- bpo-23671: string.Template now allows specifying the "self" parameter as a
- keyword argument. string.Formatter now allows specifying the "self" and
- the "format_string" parameters as keyword arguments.
-
-- bpo-23502: The pprint module now supports mapping proxies.
-
-- bpo-17530: pprint now wraps long bytes objects and bytearrays.
-
-- bpo-22687: Fixed some corner cases in breaking words in tetxtwrap. Got rid
- of quadratic complexity in breaking long words.
-
-- bpo-4727: The copy module now uses pickle protocol 4 (PEP 3154) and
- supports copying of instances of classes whose __new__ method takes
- keyword-only arguments.
-
-- bpo-23491: Added a zipapp module to support creating executable zip file
- archives of Python code. Registered ".pyz" and ".pyzw" extensions on
- Windows for these archives (PEP 441).
-
-- bpo-23657: Avoid explicit checks for str in zipapp, adding support for
- pathlib.Path objects as arguments.
-
-- bpo-23688: Added support of arbitrary bytes-like objects and avoided
- unnecessary copying of memoryview in gzip.GzipFile.write(). Original patch
- by Wolfgang Maier.
-
-- bpo-23252: Added support for writing ZIP files to unseekable streams.
-
-- bpo-23647: Increase imaplib's MAXLINE to accommodate modern mailbox sizes.
-
-- bpo-23539: If body is None, http.client.HTTPConnection.request now sets
- Content-Length to 0 for PUT, POST, and PATCH headers to avoid 411 errors
- from some web servers.
-
-- bpo-22351: The nntplib.NNTP constructor no longer leaves the connection
- and socket open until the garbage collector cleans them up. Patch by
- Martin Panter.
-
-- bpo-23704: collections.deque() objects now support methods for index(),
- insert(), and copy(). This allows deques to be registered as a
- MutableSequence and it improves their substitutability for lists.
-
-- bpo-23715: :func:`signal.sigwaitinfo` and :func:`signal.sigtimedwait` are
- now retried when interrupted by a signal not in the *sigset* parameter, if
- the signal handler does not raise an exception. signal.sigtimedwait()
- recomputes the timeout with a monotonic clock when it is retried.
-
-- bpo-23001: Few functions in modules mmap, ossaudiodev, socket, ssl, and
- codecs, that accepted only read-only bytes-like object now accept writable
- bytes-like object too.
-
-- bpo-23646: If time.sleep() is interrupted by a signal, the sleep is now
- retried with the recomputed delay, except if the signal handler raises an
- exception (PEP 475).
-
-- bpo-23136: _strptime now uniformly handles all days in week 0, including
- Dec 30 of previous year. Based on patch by Jim Carroll.
-
-- bpo-23700: Iterator of NamedTemporaryFile now keeps a reference to
- NamedTemporaryFile instance. Patch by Bohuslav Kabrda.
-
-- bpo-22903: The fake test case created by unittest.loader when it fails
- importing a test module is now picklable.
-
-- bpo-22181: On Linux, os.urandom() now uses the new getrandom() syscall if
- available, syscall introduced in the Linux kernel 3.17. It is more
- reliable and more secure, because it avoids the need of a file descriptor
- and waits until the kernel has enough entropy.
-
-- bpo-2211: Updated the implementation of the http.cookies.Morsel class.
- Setting attributes key, value and coded_value directly now is deprecated.
- update() and setdefault() now transform and check keys. Comparing for
- equality now takes into account attributes key, value and coded_value.
- copy() now returns a Morsel, not a dict. repr() now contains all
- attributes. Optimized checking keys and quoting values. Added new tests.
- Original patch by Demian Brecht.
-
-- bpo-18983: Allow selection of output units in timeit. Patch by Julian
- Gindi.
-
-- bpo-23631: Fix traceback.format_list when a traceback has been mutated.
-
-- bpo-23568: Add rdivmod support to MagicMock() objects. Patch by Håkan
- Lövdahl.
-
-- bpo-2052: Add charset parameter to HtmlDiff.make_file().
-
-- bpo-23668: Support os.truncate and os.ftruncate on Windows.
-
-- bpo-23138: Fixed parsing cookies with absent keys or values in cookiejar.
- Patch by Demian Brecht.
-
-- bpo-23051: multiprocessing.Pool methods imap() and imap_unordered() now
- handle exceptions raised by an iterator. Patch by Alon Diamant and Davin
- Potts.
-
-- bpo-23581: Add matmul support to MagicMock. Patch by Håkan Lövdahl.
-
-- bpo-23566: enable(), register(), dump_traceback() and
- dump_traceback_later() functions of faulthandler now accept file
- descriptors. Patch by Wei Wu.
-
-- bpo-22928: Disabled HTTP header injections in http.client. Original patch
- by Demian Brecht.
-
-- bpo-23615: Modules bz2, tarfile and tokenize now can be reloaded with
- imp.reload(). Patch by Thomas Kluyver.
-
-- bpo-23605: os.walk() now calls os.scandir() instead of os.listdir(). The
- usage of os.scandir() reduces the number of calls to os.stat(). Initial
- patch written by Ben Hoyt.
-
-Build
------
-
-- bpo-23585: make patchcheck will ensure the interpreter is built.
-
-Tests
------
-
-- bpo-23583: Added tests for standard IO streams in IDLE.
-
-- bpo-22289: Prevent test_urllib2net failures due to ftp connection timeout.
-
-Tools/Demos
------------
-
-- bpo-22826: The result of open() in Tools/freeze/bkfile.py is now better
- compatible with regular files (in particular it now supports the context
- management protocol).
-
-
-What's New in Python 3.5.0 alpha 2?
-===================================
-
-*Release date: 2015-03-09*
-
-Core and Builtins
------------------
-
-- bpo-23571: PyObject_Call() and PyCFunction_Call() now raise a SystemError
- if a function returns a result and raises an exception. The SystemError is
- chained to the previous exception.
-
-Library
--------
-
-- bpo-22524: New os.scandir() function, part of the :pep:`471`:
- "os.scandir() function -- a better and faster directory iterator". Patch
- written by Ben Hoyt.
-
-- bpo-23103: Reduced the memory consumption of IPv4Address and IPv6Address.
-
-- bpo-21793: BaseHTTPRequestHandler again logs response code as numeric, not
- as stringified enum. Patch by Demian Brecht.
-
-- bpo-23476: In the ssl module, enable OpenSSL's X509_V_FLAG_TRUSTED_FIRST
- flag on certificate stores when it is available.
-
-- bpo-23576: Avoid stalling in SSL reads when EOF has been reached in the
- SSL layer but the underlying connection hasn't been closed.
-
-- bpo-23504: Added an __all__ to the types module.
-
-- bpo-23563: Optimized utility functions in urllib.parse.
-
-- bpo-7830: Flatten nested functools.partial.
-
-- bpo-20204: Added the __module__ attribute to _tkinter classes.
-
-- bpo-19980: Improved help() for non-recognized strings. help('') now shows
- the help on str. help('help') now shows the help on help(). Original
- patch by Mark Lawrence.
-
-- bpo-23521: Corrected pure python implementation of timedelta division.
- Eliminated OverflowError from ``timedelta * float`` for some floats;
- Corrected rounding in timedelta true division.
-
-- bpo-21619: Popen objects no longer leave a zombie after exit in the with
- statement if the pipe was broken. Patch by Martin Panter.
-
-- bpo-22936: Make it possible to show local variables in tracebacks for both
- the traceback module and unittest.
-
-- bpo-15955: Add an option to limit the output size in bz2.decompress().
- Patch by Nikolaus Rath.
-
-- bpo-6639: Module-level turtle functions no longer raise TclError after
- closing the window.
-
-- bpo-814253: Group references and conditional group references now work in
- lookbehind assertions in regular expressions. (See also: bpo-9179)
-
-- bpo-23215: Multibyte codecs with custom error handlers that ignores errors
- consumed too much memory and raised SystemError or MemoryError. Original
- patch by Aleksi Torhamo.
-
-- bpo-5700: io.FileIO() called flush() after closing the file. flush() was
- not called in close() if closefd=False.
-
-- bpo-23374: Fixed pydoc failure with non-ASCII files when stdout encoding
- differs from file system encoding (e.g. on Mac OS).
-
-- bpo-23481: Remove RC4 from the SSL module's default cipher list.
-
-- bpo-21548: Fix pydoc.synopsis() and pydoc.apropos() on modules with empty
- docstrings.
-
-- bpo-22885: Fixed arbitrary code execution vulnerability in the dbm.dumb
- module. Original patch by Claudiu Popa.
-
-- bpo-23239: ssl.match_hostname() now supports matching of IP addresses.
-
-- bpo-23146: Fix mishandling of absolute Windows paths with forward slashes
- in pathlib.
-
-- bpo-23096: Pickle representation of floats with protocol 0 now is the same
- for both Python and C implementations.
-
-- bpo-19105: pprint now more efficiently uses free space at the right.
-
-- bpo-14910: Add allow_abbrev parameter to argparse.ArgumentParser. Patch by
- Jonathan Paugh, Steven Bethard, paul j3 and Daniel Eriksson.
-
-- bpo-21717: tarfile.open() now supports 'x' (exclusive creation) mode.
-
-- bpo-23344: marshal.dumps() is now 20-25% faster on average.
-
-- bpo-20416: marshal.dumps() with protocols 3 and 4 is now 40-50% faster on
- average.
-
-- bpo-23421: Fixed compression in tarfile CLI. Patch by wdv4758h.
-
-- bpo-23367: Fix possible overflows in the unicodedata module.
-
-- bpo-23361: Fix possible overflow in Windows subprocess creation code.
-
-- logging.handlers.QueueListener now takes a respect_handler_level keyword
- argument which, if set to True, will pass messages to handlers taking
- handler levels into account.
-
-- bpo-19705: turtledemo now has a visual sorting algorithm demo. Original
- patch from Jason Yeo.
-
-- bpo-23801: Fix issue where cgi.FieldStorage did not always ignore the
- entire preamble to a multipart body.
-
-Build
------
-
-- bpo-23445: pydebug builds now use "gcc -Og" where possible, to make the
- resulting executable faster.
-
-- bpo-23686: Update OS X 10.5 installer build to use OpenSSL 1.0.2a.
-
-C API
------
-
-- bpo-20204: Deprecation warning is now raised for builtin types without the
- __module__ attribute.
-
-Windows
--------
-
-- bpo-23465: Implement :pep:`486` - Make the Python Launcher aware of
- virtual environments. Patch by Paul Moore.
-
-- bpo-23437: Make user scripts directory versioned on Windows. Patch by Paul
- Moore.
-
-
-What's New in Python 3.5.0 alpha 1?
-===================================
-
-*Release date: 2015-02-08*
-
-Core and Builtins
------------------
-
-- bpo-23285: PEP 475 - EINTR handling.
-
-- bpo-22735: Fix many edge cases (including crashes) involving custom mro()
- implementations.
-
-- bpo-22896: Avoid using PyObject_AsCharBuffer(), PyObject_AsReadBuffer()
- and PyObject_AsWriteBuffer().
-
-- bpo-21295: Revert some changes (issue #16795) to AST line numbers and
- column offsets that constituted a regression.
-
-- bpo-22986: Allow changing an object's __class__ between a dynamic type and
- static type in some cases.
-
-- bpo-15859: PyUnicode_EncodeFSDefault(), PyUnicode_EncodeMBCS() and
- PyUnicode_EncodeCodePage() now raise an exception if the object is not a
- Unicode object. For PyUnicode_EncodeFSDefault(), it was already the case
- on platforms other than Windows. Patch written by Campbell Barton.
-
-- bpo-21408: The default __ne__() now returns NotImplemented if __eq__()
- returned NotImplemented. Original patch by Martin Panter.
-
-- bpo-23321: Fixed a crash in str.decode() when error handler returned
- replacement string longer than malformed input data.
-
-- bpo-22286: The "backslashreplace" error handlers now works with decoding
- and translating.
-
-- bpo-23253: Delay-load ShellExecute[AW] in os.startfile for reduced startup
- overhead on Windows.
-
-- bpo-22038: pyatomic.h now uses stdatomic.h or GCC built-in functions for
- atomic memory access if available. Patch written by Vitor de Lima and
- Gustavo Temple.
-
-- bpo-20284: %-interpolation (aka printf) formatting added for bytes and
- bytearray.
-
-- bpo-23048: Fix jumping out of an infinite while loop in the pdb.
-
-- bpo-20335: bytes constructor now raises TypeError when encoding or errors
- is specified with non-string argument. Based on patch by Renaud Blanch.
-
-- bpo-22834: If the current working directory ends up being set to a
- non-existent directory then import will no longer raise FileNotFoundError.
-
-- bpo-22869: Move the interpreter startup & shutdown code to a new dedicated
- pylifecycle.c module
-
-- bpo-22847: Improve method cache efficiency.
-
-- bpo-22335: Fix crash when trying to enlarge a bytearray to 0x7fffffff
- bytes on a 32-bit platform.
-
-- bpo-22653: Fix an assertion failure in debug mode when doing a reentrant
- dict insertion in debug mode.
-
-- bpo-22643: Fix integer overflow in Unicode case operations (upper, lower,
- title, swapcase, casefold).
-
-- bpo-17636: Circular imports involving relative imports are now supported.
-
-- bpo-22604: Fix assertion error in debug mode when dividing a complex
- number by (nan+0j).
-
-- bpo-21052: Do not raise ImportWarning when sys.path_hooks or sys.meta_path
- are set to None.
-
-- bpo-16518: Use 'bytes-like object required' in error messages that
- previously used the far more cryptic "'x' does not support the buffer
- protocol.
-
-- bpo-22470: Fixed integer overflow issues in "backslashreplace",
- "xmlcharrefreplace", and "surrogatepass" error handlers.
-
-- bpo-22540: speed up `PyObject_IsInstance` and `PyObject_IsSubclass` in the
- common case that the second argument has metaclass `type`.
-
-- bpo-18711: Add a new `PyErr_FormatV` function, similar to `PyErr_Format`
- but accepting a `va_list` argument.
-
-- bpo-22520: Fix overflow checking when generating the repr of a unicode
- object.
-
-- bpo-22519: Fix overflow checking in PyBytes_Repr.
-
-- bpo-22518: Fix integer overflow issues in latin-1 encoding.
-
-- bpo-16324: _charset parameter of MIMEText now also accepts
- email.charset.Charset instances. Initial patch by Claude Paroz.
-
-- bpo-1764286: Fix inspect.getsource() to support decorated functions. Patch
- by Claudiu Popa.
-
-- bpo-18554: os.__all__ includes posix functions.
-
-- bpo-21391: Use os.path.abspath in the shutil module.
-
-- bpo-11471: avoid generating a JUMP_FORWARD instruction at the end of an
- if-block if there is no else-clause. Original patch by Eugene Toder.
-
-- bpo-22215: Now ValueError is raised instead of TypeError when str or bytes
- argument contains not permitted null character or byte.
-
-- bpo-22258: Fix the internal function set_inheritable() on Illumos. This
- platform exposes the function ``ioctl(FIOCLEX)``, but calling it fails
- with errno is ENOTTY: "Inappropriate ioctl for device". set_inheritable()
- now falls back to the slower ``fcntl()`` (``F_GETFD`` and then
- ``F_SETFD``).
-
-- bpo-21389: Displaying the __qualname__ of the underlying function in the
- repr of a bound method.
-
-- bpo-22206: Using pthread, PyThread_create_key() now sets errno to ENOMEM
- and returns -1 (error) on integer overflow.
-
-- bpo-20184: Argument Clinic based signature introspection added for 30 of
- the builtin functions.
-
-- bpo-22116: C functions and methods (of the 'builtin_function_or_method'
- type) can now be weakref'ed. Patch by Wei Wu.
-
-- bpo-22077: Improve index error messages for bytearrays, bytes, lists, and
- tuples by adding 'or slices'. Added ', not <typename>' for bytearrays.
- Original patch by Claudiu Popa.
-
-- bpo-20179: Apply Argument Clinic to bytes and bytearray. Patch by Tal
- Einat.
-
-- bpo-22082: Clear interned strings in slotdefs.
-
-- Upgrade Unicode database to Unicode 7.0.0.
-
-- bpo-21897: Fix a crash with the f_locals attribute with closure variables
- when frame.clear() has been called.
-
-- bpo-21205: Add a new ``__qualname__`` attribute to generator, the
- qualified name, and use it in the representation of a generator
- (``repr(gen)``). The default name of the generator (``__name__``
- attribute) is now get from the function instead of the code. Use
- ``gen.gi_code.co_name`` to get the name of the code.
-
-- bpo-21669: With the aid of heuristics in SyntaxError.__init__, the parser
- now attempts to generate more meaningful (or at least more search engine
- friendly) error messages when "exec" and "print" are used as statements.
-
-- bpo-21642: In the conditional if-else expression, allow an integer written
- with no space between itself and the ``else`` keyword (e.g. ``True if
- 42else False``) to be valid syntax.
-
-- bpo-21523: Fix over-pessimistic computation of the stack effect of some
- opcodes in the compiler. This also fixes a quadratic compilation time
- issue noticeable when compiling code with a large number of "and" and "or"
- operators.
-
-- bpo-21418: Fix a crash in the builtin function super() when called without
- argument and without current frame (ex: embedded Python).
-
-- bpo-21425: Fix flushing of standard streams in the interactive
- interpreter.
-
-- bpo-21435: In rare cases, when running finalizers on objects in cyclic
- trash a bad pointer dereference could occur due to a subtle flaw in
- internal iteration logic.
-
-- bpo-21377: PyBytes_Concat() now tries to concatenate in-place when the
- first argument has a reference count of 1. Patch by Nikolaus Rath.
-
-- bpo-20355: -W command line options now have higher priority than the
- PYTHONWARNINGS environment variable. Patch by Arfrever.
-
-- bpo-21274: Define PATH_MAX for GNU/Hurd in Python/pythonrun.c.
-
-- bpo-20904: Support setting FPU precision on m68k.
-
-- bpo-21209: Fix sending tuples to custom generator objects with the yield
- from syntax.
-
-- bpo-21193: pow(a, b, c) now raises ValueError rather than TypeError when b
- is negative. Patch by Josh Rosenberg.
-
-- bpo-21176: PEP 465: Add the '@' operator for matrix multiplication.
-
-- bpo-21134: Fix segfault when str is called on an uninitialized
- UnicodeEncodeError, UnicodeDecodeError, or UnicodeTranslateError object.
-
-- bpo-19537: Fix PyUnicode_DATA() alignment under m68k. Patch by Andreas
- Schwab.
-
-- bpo-20929: Add a type cast to avoid shifting a negative number.
-
-- bpo-20731: Properly position in source code files even if they are opened
- in text mode. Patch by Serhiy Storchaka.
-
-- bpo-20637: Key-sharing now also works for instance dictionaries of
- subclasses. Patch by Peter Ingebretson.
-
-- bpo-8297: Attributes missing from modules now include the module name in
- the error text. Original patch by ysj.ray.
-
-- bpo-19995: %c, %o, %x, and %X now raise TypeError on non-integer input.
-
-- bpo-19655: The ASDL parser - used by the build process to generate code
- for managing the Python AST in C - was rewritten. The new parser is self
- contained and does not require to carry long the spark.py parser-generator
- library; spark.py was removed from the source base.
-
-- bpo-12546: Allow ``\x00`` to be used as a fill character when using str,
- int, float, and complex __format__ methods.
-
-- bpo-20480: Add ipaddress.reverse_pointer. Patch by Leon Weber.
-
-- bpo-13598: Modify string.Formatter to support auto-numbering of
- replacement fields. It now matches the behavior of str.format() in this
- regard. Patches by Phil Elson and Ramchandra Apte.
-
-- bpo-8931: Make alternate formatting ('#') for type 'c' raise an exception.
- In versions prior to 3.5, '#' with 'c' had no effect. Now specifying it is
- an error. Patch by Torsten Landschoff.
-
-- bpo-23165: Perform overflow checks before allocating memory in the
- _Py_char2wchar function.
-
-Library
--------
-
-- bpo-23399: pyvenv creates relative symlinks where possible.
-
-- bpo-20289: cgi.FieldStorage() now supports the context management
- protocol.
-
-- bpo-13128: Print response headers for CONNECT requests when debuglevel >
- 0. Patch by Demian Brecht.
-
-- bpo-15381: Optimized io.BytesIO to make less allocations and copyings.
-
-- bpo-22818: Splitting on a pattern that could match an empty string now
- raises a warning. Patterns that can only match empty strings are now
- rejected.
-
-- bpo-23099: Closing io.BytesIO with exported buffer is rejected now to
- prevent corrupting exported buffer.
-
-- bpo-23326: Removed __ne__ implementations. Since fixing default __ne__
- implementation in issue #21408 they are redundant.
-
-- bpo-23363: Fix possible overflow in itertools.permutations.
-
-- bpo-23364: Fix possible overflow in itertools.product.
-
-- bpo-23366: Fixed possible integer overflow in itertools.combinations.
-
-- bpo-23369: Fixed possible integer overflow in
- _json.encode_basestring_ascii.
-
-- bpo-23353: Fix the exception handling of generators in
- PyEval_EvalFrameEx(). At entry, save or swap the exception state even if
- PyEval_EvalFrameEx() is called with throwflag=0. At exit, the exception
- state is now always restored or swapped, not only if why is WHY_YIELD or
- WHY_RETURN. Patch co-written with Antoine Pitrou.
-
-- bpo-14099: Restored support of writing ZIP files to tellable but
- non-seekable streams.
-
-- bpo-14099: Writing to ZipFile and reading multiple ZipExtFiles is
- threadsafe now.
-
-- bpo-19361: JSON decoder now raises JSONDecodeError instead of ValueError.
-
-- bpo-18518: timeit now rejects statements which can't be compiled outside a
- function or a loop (e.g. "return" or "break").
-
-- bpo-23094: Fixed readline with frames in Python implementation of pickle.
-
-- bpo-23268: Fixed bugs in the comparison of ipaddress classes.
-
-- bpo-21408: Removed incorrect implementations of __ne__() which didn't
- returned NotImplemented if __eq__() returned NotImplemented. The default
- __ne__() now works correctly.
-
-- bpo-19996: :class:`email.feedparser.FeedParser` now handles (malformed)
- headers with no key rather than assuming the body has started.
-
-- bpo-20188: Support Application-Layer Protocol Negotiation (ALPN) in the
- ssl module.
-
-- bpo-23133: Pickling of ipaddress objects now produces more compact and
- portable representation.
-
-- bpo-23248: Update ssl error codes from latest OpenSSL git master.
-
-- bpo-23266: Much faster implementation of ipaddress.collapse_addresses()
- when there are many non-consecutive addresses.
-
-- bpo-23098: 64-bit dev_t is now supported in the os module.
-
-- bpo-21817: When an exception is raised in a task submitted to a
- ProcessPoolExecutor, the remote traceback is now displayed in the parent
- process. Patch by Claudiu Popa.
-
-- bpo-15955: Add an option to limit output size when decompressing LZMA
- data. Patch by Nikolaus Rath and Martin Panter.
-
-- bpo-23250: In the http.cookies module, capitalize "HttpOnly" and "Secure"
- as they are written in the standard.
-
-- bpo-23063: In the distutils' check command, fix parsing of reST with code
- or code-block directives.
-
-- bpo-23209: selectors.BaseSelector.get_key() now raises a RuntimeError if
- the selector is closed. And selectors.BaseSelector.close() now clears its
- internal reference to the selector mapping to break a reference cycle.
- Initial patch written by Martin Richard. (See also: bpo-23225)
-
-- bpo-17911: Provide a way to seed the linecache for a PEP-302 module
- without actually loading the code.
-
-- bpo-17911: Provide a new object API for traceback, including the ability
- to not lookup lines at all until the traceback is actually rendered,
- without any trace of the original objects being kept alive.
-
-- bpo-19777: Provide a home() classmethod on Path objects. Contributed by
- Victor Salgado and Mayank Tripathi.
-
-- bpo-23206: Make ``json.dumps(..., ensure_ascii=False)`` as fast as the
- default case of ``ensure_ascii=True``. Patch by Naoki Inada.
-
-- bpo-23185: Add math.inf and math.nan constants.
-
-- bpo-23186: Add ssl.SSLObject.shared_ciphers() and
- ssl.SSLSocket.shared_ciphers() to fetch the client's list ciphers sent at
- handshake.
-
-- bpo-23143: Remove compatibility with OpenSSLs older than 0.9.8.
-
-- bpo-23132: Improve performance and introspection support of comparison
- methods created by functool.total_ordering.
-
-- bpo-19776: Add an expanduser() method on Path objects.
-
-- bpo-23112: Fix SimpleHTTPServer to correctly carry the query string and
- fragment when it redirects to add a trailing slash.
-
-- bpo-21793: Added http.HTTPStatus enums (i.e. HTTPStatus.OK,
- HTTPStatus.NOT_FOUND). Patch by Demian Brecht.
-
-- bpo-23093: In the io, module allow more operations to work on detached
- streams.
-
-- bpo-23111: In the ftplib, make ssl.PROTOCOL_SSLv23 the default protocol
- version.
-
-- bpo-22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(),
- instead of reading /dev/urandom, to get pseudo-random bytes.
-
-- bpo-19104: pprint now produces evaluable output for wrapped strings.
-
-- bpo-23071: Added missing names to codecs.__all__. Patch by Martin Panter.
-
-- bpo-22783: Pickling now uses the NEWOBJ opcode instead of the NEWOBJ_EX
- opcode if possible.
-
-- bpo-15513: Added a __sizeof__ implementation for pickle classes.
-
-- bpo-19858: pickletools.optimize() now aware of the MEMOIZE opcode, can
- produce more compact result and no longer produces invalid output if input
- data contains MEMOIZE opcodes together with PUT or BINPUT opcodes.
-
-- bpo-22095: Fixed HTTPConnection.set_tunnel with default port. The port
- value in the host header was set to "None". Patch by Demian Brecht.
-
-- bpo-23016: A warning no longer produces an AttributeError when the program
- is run with pythonw.exe.
-
-- bpo-21775: shutil.copytree(): fix crash when copying to VFAT. An exception
- handler assumed that OSError objects always have a 'winerror' attribute.
- That is not the case, so the exception handler itself raised
- AttributeError when run on Linux (and, presumably, any other non-Windows
- OS). Patch by Greg Ward.
-
-- bpo-1218234: Fix inspect.getsource() to load updated source of reloaded
- module. Initial patch by Berker Peksag.
-
-- bpo-21740: Support wrapped callables in doctest. Patch by Claudiu Popa.
-
-- bpo-23009: Make sure selectors.EpollSelector.select() works when no FD is
- registered.
-
-- bpo-22959: In the constructor of http.client.HTTPSConnection, prefer the
- context's check_hostname attribute over the *check_hostname* parameter.
-
-- bpo-22696: Add function :func:`sys.is_finalizing` to know about
- interpreter shutdown.
-
-- bpo-16043: Add a default limit for the amount of data
- xmlrpclib.gzip_decode will return. This resolves CVE-2013-1753.
-
-- bpo-14099: ZipFile.open() no longer reopen the underlying file. Objects
- returned by ZipFile.open() can now operate independently of the ZipFile
- even if the ZipFile was created by passing in a file-like object as the
- first argument to the constructor.
-
-- bpo-22966: Fix __pycache__ pyc file name clobber when pyc_compile is asked
- to compile a source file containing multiple dots in the source file name.
-
-- bpo-21971: Update turtledemo doc and add module to the index.
-
-- bpo-21032: Fixed socket leak if HTTPConnection.getresponse() fails.
- Original patch by Martin Panter.
-
-- bpo-22407: Deprecated the use of re.LOCALE flag with str patterns or
- re.ASCII. It was newer worked.
-
-- bpo-22902: The "ip" command is now used on Linux to determine MAC address
- in uuid.getnode(). Pach by Bruno Cauet.
-
-- bpo-22960: Add a context argument to xmlrpclib.ServerProxy constructor.
-
-- bpo-22389: Add contextlib.redirect_stderr().
-
-- bpo-21356: Make ssl.RAND_egd() optional to support LibreSSL. The
- availability of the function is checked during the compilation. Patch
- written by Bernard Spil.
-
-- bpo-22915: SAX parser now supports files opened with file descriptor or
- bytes path.
-
-- bpo-22609: Constructors and update methods of mapping classes in the
- collections module now accept the self keyword argument.
-
-- bpo-22940: Add readline.append_history_file.
-
-- bpo-19676: Added the "namereplace" error handler.
-
-- bpo-22788: Add *context* parameter to logging.handlers.HTTPHandler.
-
-- bpo-22921: Allow SSLContext to take the *hostname* parameter even if
- OpenSSL doesn't support SNI.
-
-- bpo-22894: TestCase.subTest() would cause the test suite to be stopped
- when in failfast mode, even in the absence of failures.
-
-- bpo-22796: HTTP cookie parsing is now stricter, in order to protect
- against potential injection attacks.
-
-- bpo-22370: Windows detection in pathlib is now more robust.
-
-- bpo-22841: Reject coroutines in asyncio add_signal_handler(). Patch by
- Ludovic.Gasc.
-
-- bpo-19494: Added urllib.request.HTTPBasicPriorAuthHandler. Patch by Matej
- Cepl.
-
-- bpo-22578: Added attributes to the re.error class.
-
-- bpo-22849: Fix possible double free in the io.TextIOWrapper constructor.
-
-- bpo-12728: Different Unicode characters having the same uppercase but
- different lowercase are now matched in case-insensitive regular
- expressions.
-
-- bpo-22821: Fixed fcntl() with integer argument on 64-bit big-endian
- platforms.
-
-- bpo-21650: Add an `--sort-keys` option to json.tool CLI.
-
-- bpo-22824: Updated reprlib output format for sets to use set literals.
- Patch contributed by Berker Peksag.
-
-- bpo-22824: Updated reprlib output format for arrays to display empty
- arrays without an unnecessary empty list. Suggested by Serhiy Storchaka.
-
-- bpo-22406: Fixed the uu_codec codec incorrectly ported to 3.x. Based on
- patch by Martin Panter.
-
-- bpo-17293: uuid.getnode() now determines MAC address on AIX using netstat.
- Based on patch by Aivars Kalvāns.
-
-- bpo-22769: Fixed ttk.Treeview.tag_has() when called without arguments.
-
-- bpo-22417: Verify certificates by default in httplib (PEP 476).
-
-- bpo-22775: Fixed unpickling of http.cookies.SimpleCookie with protocol 2
- and above. Patch by Tim Graham.
-
-- bpo-22776: Brought excluded code into the scope of a try block in
- SysLogHandler.emit().
-
-- bpo-22665: Add missing get_terminal_size and SameFileError to
- shutil.__all__.
-
-- bpo-6623: Remove deprecated Netrc class in the ftplib module. Patch by
- Matt Chaput.
-
-- bpo-17381: Fixed handling of case-insensitive ranges in regular
- expressions.
-
-- bpo-22410: Module level functions in the re module now cache compiled
- locale-dependent regular expressions taking into account the locale.
-
-- bpo-22759: Query methods on pathlib.Path() (exists(), is_dir(), etc.) now
- return False when the underlying stat call raises NotADirectoryError.
-
-- bpo-8876: distutils now falls back to copying files when hard linking
- doesn't work. This allows use with special filesystems such as VirtualBox
- shared folders.
-
-- bpo-22217: Implemented reprs of classes in the zipfile module.
-
-- bpo-22457: Honour load_tests in the start_dir of discovery.
-
-- bpo-18216: gettext now raises an error when a .mo file has an unsupported
- major version number. Patch by Aaron Hill.
-
-- bpo-13918: Provide a locale.delocalize() function which can remove
- locale-specific number formatting from a string representing a number,
- without then converting it to a specific type. Patch by Cédric Krier.
-
-- bpo-22676: Make the pickling of global objects which don't have a
- __module__ attribute less slow.
-
-- bpo-18853: Fixed ResourceWarning in shlex.__nain__.
-
-- bpo-9351: Defaults set with set_defaults on an argparse subparser are no
- longer ignored when also set on the parent parser.
-
-- bpo-7559: unittest test loading ImportErrors are reported as import errors
- with their import exception rather than as attribute errors after the
- import has already failed.
-
-- bpo-19746: Make it possible to examine the errors from unittest discovery
- without executing the test suite. The new `errors` attribute on TestLoader
- exposes these non-fatal errors encountered during discovery.
-
-- bpo-21991: Make email.headerregistry's header 'params' attributes be
- read-only (MappingProxyType). Previously the dictionary was modifiable
- but a new one was created on each access of the attribute.
-
-- bpo-22638: SSLv3 is now disabled throughout the standard library. It can
- still be enabled by instantiating a SSLContext manually.
-
-- bpo-22641: In asyncio, the default SSL context for client connections is
- now created using ssl.create_default_context(), for stronger security.
-
-- bpo-17401: Include closefd in io.FileIO repr.
-
-- bpo-21338: Add silent mode for compileall. quiet parameters of
- compile_{dir, file, path} functions now have a multilevel value. Also, -q
- option of the CLI now have a multilevel value. Patch by Thomas Kluyver.
-
-- bpo-20152: Convert the array and cmath modules to Argument Clinic.
-
-- bpo-18643: Add socket.socketpair() on Windows.
-
-- bpo-22435: Fix a file descriptor leak when socketserver bind fails.
-
-- bpo-13096: Fixed segfault in CTypes POINTER handling of large values.
-
-- bpo-11694: Raise ConversionError in xdrlib as documented. Patch by Filip
- Gruszczyński and Claudiu Popa.
-
-- bpo-19380: Optimized parsing of regular expressions.
-
-- bpo-1519638: Now unmatched groups are replaced with empty strings in
- re.sub() and re.subn().
-
-- bpo-18615: sndhdr.what/whathdr now return a namedtuple.
-
-- bpo-22462: Fix pyexpat's creation of a dummy frame to make it appear in
- exception tracebacks.
-
-- bpo-21965: Add support for in-memory SSL to the ssl module. Patch by
- Geert Jansen.
-
-- bpo-21173: Fix len() on a WeakKeyDictionary when .clear() was called with
- an iterator alive.
-
-- bpo-11866: Eliminated race condition in the computation of names for new
- threads.
-
-- bpo-21905: Avoid RuntimeError in pickle.whichmodule() when sys.modules is
- mutated while iterating. Patch by Olivier Grisel.
-
-- bpo-11271: concurrent.futures.Executor.map() now takes a *chunksize*
- argument to allow batching of tasks in child processes and improve
- performance of ProcessPoolExecutor. Patch by Dan O'Reilly.
-
-- bpo-21883: os.path.join() and os.path.relpath() now raise a TypeError with
- more helpful error message for unsupported or mismatched types of
- arguments.
-
-- bpo-22219: The zipfile module CLI now adds entries for directories
- (including empty directories) in ZIP file.
-
-- bpo-22449: In the ssl.SSLContext.load_default_certs, consult the
- environmental variables SSL_CERT_DIR and SSL_CERT_FILE on Windows.
-
-- bpo-22508: The email.__version__ variable has been removed; the email code
- is no longer shipped separately from the stdlib, and __version__ hasn't
- been updated in several releases.
-
-- bpo-20076: Added non derived UTF-8 aliases to locale aliases table.
-
-- bpo-20079: Added locales supported in glibc 2.18 to locale alias table.
-
-- bpo-20218: Added convenience methods read_text/write_text and read_bytes/
- write_bytes to pathlib.Path objects.
-
-- bpo-22396: On 32-bit AIX platform, don't expose os.posix_fadvise() nor
- os.posix_fallocate() because their prototypes in system headers are wrong.
-
-- bpo-22517: When an io.BufferedRWPair object is deallocated, clear its
- weakrefs.
-
-- bpo-22437: Number of capturing groups in regular expression is no longer
- limited by 100.
-
-- bpo-17442: InteractiveInterpreter now displays the full chained traceback
- in its showtraceback method, to match the built in interactive
- interpreter.
-
-- bpo-23392: Added tests for marshal C API that works with FILE*.
-
-- bpo-10510: distutils register and upload methods now use HTML standards
- compliant CRLF line endings.
-
-- bpo-9850: Fixed macpath.join() for empty first component. Patch by Oleg
- Oshmyan.
-
-- bpo-5309: distutils' build and build_ext commands now accept a ``-j``
- option to enable parallel building of extension modules.
-
-- bpo-22448: Improve canceled timer handles cleanup to prevent unbound
- memory usage. Patch by Joshua Moore-Oliva.
-
-- bpo-22427: TemporaryDirectory no longer attempts to clean up twice when
- used in the with statement in generator.
-
-- bpo-22362: Forbidden ambiguous octal escapes out of range 0-0o377 in
- regular expressions.
-
-- bpo-20912: Now directories added to ZIP file have correct Unix and MS-DOS
- directory attributes.
-
-- bpo-21866: ZipFile.close() no longer writes ZIP64 central directory
- records if allowZip64 is false.
-
-- bpo-22278: Fix urljoin problem with relative urls, a regression observed
- after changes to issue22118 were submitted.
-
-- bpo-22415: Fixed debugging output of the GROUPREF_EXISTS opcode in the re
- module. Removed trailing spaces in debugging output.
-
-- bpo-22423: Unhandled exception in thread no longer causes unhandled
- AttributeError when sys.stderr is None.
-
-- bpo-21332: Ensure that ``bufsize=1`` in subprocess.Popen() selects line
- buffering, rather than block buffering. Patch by Akira Li.
-
-- bpo-21091: Fix API bug: email.message.EmailMessage.is_attachment is now a
- method.
-
-- bpo-21079: Fix email.message.EmailMessage.is_attachment to return the
- correct result when the header has parameters as well as a value.
-
-- bpo-22247: Add NNTPError to nntplib.__all__.
-
-- bpo-22366: urllib.request.urlopen will accept a context object
- (SSLContext) as an argument which will then be used for HTTPS connection.
- Patch by Alex Gaynor.
-
-- bpo-4180: The warnings registries are now reset when the filters are
- modified.
-
-- bpo-22419: Limit the length of incoming HTTP request in wsgiref server to
- 65536 bytes and send a 414 error code for higher lengths. Patch
- contributed by Devin Cook.
-
-- Lax cookie parsing in http.cookies could be a security issue when combined
- with non-standard cookie handling in some web browsers. Reported by
- Sergey Bobrov.
-
-- bpo-20537: logging methods now accept an exception instance as well as a
- Boolean value or exception tuple. Thanks to Yury Selivanov for the patch.
-
-- bpo-22384: An exception in Tkinter callback no longer crashes the program
- when it is run with pythonw.exe.
-
-- bpo-22168: Prevent turtle AttributeError with non-default Canvas on OS X.
-
-- bpo-21147: sqlite3 now raises an exception if the request contains a null
- character instead of truncating it. Based on patch by Victor Stinner.
-
-- bpo-13968: The glob module now supports recursive search in subdirectories
- using the ``**`` pattern.
-
-- bpo-21951: Fixed a crash in Tkinter on AIX when called Tcl command with
- empty string or tuple argument.
-
-- bpo-21951: Tkinter now most likely raises MemoryError instead of crash if
- the memory allocation fails.
-
-- bpo-22338: Fix a crash in the json module on memory allocation failure.
-
-- bpo-12410: imaplib.IMAP4 now supports the context management protocol.
- Original patch by Tarek Ziadé.
-
-- bpo-21270: We now override tuple methods in mock.call objects so that they
- can be used as normal call attributes.
-
-- bpo-16662: load_tests() is now unconditionally run when it is present in a
- package's __init__.py. TestLoader.loadTestsFromModule() still accepts
- use_load_tests, but it is deprecated and ignored. A new keyword-only
- attribute `pattern` is added and documented. Patch given by Robert
- Collins, tweaked by Barry Warsaw.
-
-- bpo-22226: First letter no longer is stripped from the "status" key in the
- result of Treeview.heading().
-
-- bpo-19524: Fixed resource leak in the HTTP connection when an invalid
- response is received. Patch by Martin Panter.
-
-- bpo-20421: Add a .version() method to SSL sockets exposing the actual
- protocol version in use.
-
-- bpo-19546: configparser exceptions no longer expose implementation
- details. Chained KeyErrors are removed, which leads to cleaner tracebacks.
- Patch by Claudiu Popa.
-
-- bpo-22051: turtledemo no longer reloads examples to re-run them.
- Initialization of variables and gui setup should be done in main(), which
- is called each time a demo is run, but not on import.
-
-- bpo-21933: Turtledemo users can change the code font size with a menu
- selection or control(command) '-' or '+' or control-mousewheel. Original
- patch by Lita Cho.
-
-- bpo-21597: The separator between the turtledemo text pane and the drawing
- canvas can now be grabbed and dragged with a mouse. The code text pane
- can be widened to easily view or copy the full width of the text. The
- canvas can be widened on small screens. Original patches by Jan Kanis and
- Lita Cho.
-
-- bpo-18132: Turtledemo buttons no longer disappear when the window is
- shrunk. Original patches by Jan Kanis and Lita Cho.
-
-- bpo-22043: time.monotonic() is now always available.
- ``threading.Lock.acquire()``, ``threading.RLock.acquire()`` and socket
- operations now use a monotonic clock, instead of the system clock, when a
- timeout is used.
-
-- bpo-21527: Add a default number of workers to ThreadPoolExecutor equal to
- 5 times the number of CPUs. Patch by Claudiu Popa.
-
-- bpo-22216: smtplib now resets its state more completely after a quit. The
- most obvious consequence of the previous behavior was a STARTTLS failure
- during a connect/starttls/quit/connect/starttls sequence.
-
-- bpo-22098: ctypes' BigEndianStructure and LittleEndianStructure now define
- an empty __slots__ so that subclasses don't always get an instance dict.
- Patch by Claudiu Popa.
-
-- bpo-22185: Fix an occasional RuntimeError in threading.Condition.wait()
- caused by mutation of the waiters queue without holding the lock. Patch
- by Doug Zongker.
-
-- bpo-22287: On UNIX, _PyTime_gettimeofday() now uses
- clock_gettime(CLOCK_REALTIME) if available. As a side effect, Python now
- depends on the librt library on Solaris and on Linux (only with glibc
- older than 2.17).
-
-- bpo-22182: Use e.args to unpack exceptions correctly in
- distutils.file_util.move_file. Patch by Claudiu Popa.
-
-- The webbrowser module now uses subprocess's start_new_session=True rather
- than a potentially risky preexec_fn=os.setsid call.
-
-- bpo-22042: signal.set_wakeup_fd(fd) now raises an exception if the file
- descriptor is in blocking mode.
-
-- bpo-16808: inspect.stack() now returns a named tuple instead of a tuple.
- Patch by Daniel Shahaf.
-
-- bpo-22236: Fixed Tkinter images copying operations in NoDefaultRoot mode.
-
-- bpo-2527: Add a *globals* argument to timeit functions, in order to
- override the globals namespace in which the timed code is executed. Patch
- by Ben Roberts.
-
-- bpo-22118: Switch urllib.parse to use RFC 3986 semantics for the
- resolution of relative URLs, rather than RFCs 1808 and 2396. Patch by
- Demian Brecht.
-
-- bpo-21549: Added the "members" parameter to TarFile.list().
-
-- bpo-19628: Allow compileall recursion depth to be specified with a -r
- option.
-
-- bpo-15696: Add a __sizeof__ implementation for mmap objects on Windows.
-
-- bpo-22068: Avoided reference loops with Variables and Fonts in Tkinter.
-
-- bpo-22165: SimpleHTTPRequestHandler now supports undecodable file names.
-
-- bpo-15381: Optimized line reading in io.BytesIO.
-
-- bpo-8797: Raise HTTPError on failed Basic Authentication immediately.
- Initial patch by Sam Bull.
-
-- bpo-20729: Restored the use of lazy iterkeys()/itervalues()/iteritems() in
- the mailbox module.
-
-- bpo-21448: Changed FeedParser feed() to avoid O(N\ :sup:`2`) behavior when
- parsing long line. Original patch by Raymond Hettinger.
-
-- bpo-22184: The functools LRU Cache decorator factory now gives an earlier
- and clearer error message when the user forgets the required parameters.
-
-- bpo-17923: glob() patterns ending with a slash no longer match non-dirs on
- AIX. Based on patch by Delhallt.
-
-- bpo-21725: Added support for RFC 6531 (SMTPUTF8) in smtpd.
-
-- bpo-22176: Update the ctypes module's libffi to v3.1. This release adds
- support for the Linux AArch64 and POWERPC ELF ABIv2 little endian
- architectures.
-
-- bpo-5411: Added support for the "xztar" format in the shutil module.
-
-- bpo-21121: Don't force 3rd party C extensions to be built with
- -Werror=declaration-after-statement.
-
-- bpo-21975: Fixed crash when using uninitialized sqlite3.Row (in particular
- when unpickling pickled sqlite3.Row). sqlite3.Row is now initialized in
- the __new__() method.
-
-- bpo-20170: Convert posixmodule to use Argument Clinic.
-
-- bpo-21539: Add an *exists_ok* argument to `Pathlib.mkdir()` to mimic
- `mkdir -p` and `os.makedirs()` functionality. When true, ignore
- FileExistsErrors. Patch by Berker Peksag.
-
-- bpo-22127: Bypass IDNA for pure-ASCII host names in the socket module (in
- particular for numeric IPs).
-
-- bpo-21047: set the default value for the *convert_charrefs* argument of
- HTMLParser to True. Patch by Berker Peksag.
-
-- Add an __all__ to html.entities.
-
-- bpo-15114: the strict mode and argument of HTMLParser, HTMLParser.error,
- and the HTMLParserError exception have been removed.
-
-- bpo-22085: Dropped support of Tk 8.3 in Tkinter.
-
-- bpo-21580: Now Tkinter correctly handles bytes arguments passed to Tk. In
- particular this allows initializing images from binary data.
-
-- bpo-22003: When initialized from a bytes object, io.BytesIO() now defers
- making a copy until it is mutated, improving performance and memory use on
- some use cases. Patch by David Wilson.
-
-- bpo-22018: On Windows, signal.set_wakeup_fd() now also supports sockets. A
- side effect is that Python depends to the WinSock library.
-
-- bpo-22054: Add os.get_blocking() and os.set_blocking() functions to get
- and set the blocking mode of a file descriptor (False if the O_NONBLOCK
- flag is set, True otherwise). These functions are not available on
- Windows.
-
-- bpo-17172: Make turtledemo start as active on OS X even when run with
- subprocess. Patch by Lita Cho.
-
-- bpo-21704: Fix build error for _multiprocessing when semaphores are not
- available. Patch by Arfrever Frehtes Taifersar Arahesis.
-
-- bpo-20173: Convert sha1, sha256, sha512 and md5 to ArgumentClinic. Patch
- by Vajrasky Kok.
-
-- Fix repr(_socket.socket) on Windows 64-bit: don't fail with OverflowError
- on closed socket. repr(socket.socket) already works fine.
-
-- bpo-22033: Reprs of most Python implemented classes now contain actual
- class name instead of hardcoded one.
-
-- bpo-21947: The dis module can now disassemble generator-iterator objects
- based on their gi_code attribute. Patch by Clement Rouault.
-
-- bpo-16133: The asynchat.async_chat.handle_read() method now ignores
- BlockingIOError exceptions.
-
-- bpo-22044: Fixed premature DECREF in call_tzinfo_method. Patch by Tom
- Flanagan.
-
-- bpo-19884: readline: Disable the meta modifier key if stdout is not a
- terminal to not write the ANSI sequence ``"\033[1034h"`` into stdout. This
- sequence is used on some terminal (ex: TERM=xterm-256color") to enable
- support of 8 bit characters.
-
-- bpo-4350: Removed a number of out-of-dated and non-working for a long time
- Tkinter methods.
-
-- bpo-6167: Scrollbar.activate() now returns the name of active element if
- the argument is not specified. Scrollbar.set() now always accepts only 2
- arguments.
-
-- bpo-15275: Clean up and speed up the ntpath module.
-
-- bpo-21888: plistlib's load() and loads() now work if the fmt parameter is
- specified.
-
-- bpo-22032: __qualname__ instead of __name__ is now always used to format
- fully qualified class names of Python implemented classes.
-
-- bpo-22031: Reprs now always use hexadecimal format with the "0x" prefix
- when contain an id in form " at 0x...".
-
-- bpo-22018: signal.set_wakeup_fd() now raises an OSError instead of a
- ValueError on ``fstat()`` failure.
-
-- bpo-21044: tarfile.open() now handles fileobj with an integer 'name'
- attribute. Based on patch by Antoine Pietri.
-
-- bpo-21966: Respect -q command-line option when code module is ran.
-
-- bpo-19076: Don't pass the redundant 'file' argument to self.error().
-
-- bpo-16382: Improve exception message of warnings.warn() for bad category.
- Initial patch by Phil Elson.
-
-- bpo-21932: os.read() now uses a :c:func:`Py_ssize_t` type instead of
- :c:expr:`int` for the size to support reading more than 2 GB at once. On
- Windows, the size is truncated to INT_MAX. As any call to os.read(), the
- OS may read less bytes than the number of requested bytes.
-
-- bpo-21942: Fixed source file viewing in pydoc's server mode on Windows.
-
-- bpo-11259: asynchat.async_chat().set_terminator() now raises a ValueError
- if the number of received bytes is negative.
-
-- bpo-12523: asynchat.async_chat.push() now raises a TypeError if it doesn't
- get a bytes string
-
-- bpo-21707: Add missing kwonlyargcount argument to
- ModuleFinder.replace_paths_in_code().
-
-- bpo-20639: calling Path.with_suffix('') allows removing the suffix again.
- Patch by July Tikhonov.
-
-- bpo-21714: Disallow the construction of invalid paths using
- Path.with_name(). Original patch by Antony Lee.
-
-- bpo-15014: Added 'auth' method to smtplib to make implementing auth
- mechanisms simpler, and used it internally in the login method.
-
-- bpo-21151: Fixed a segfault in the winreg module when ``None`` is passed
- as a ``REG_BINARY`` value to SetValueEx. Patch by John Ehresman.
-
-- bpo-21090: io.FileIO.readall() does not ignore I/O errors anymore. Before,
- it ignored I/O errors if at least the first C call read() succeed.
-
-- bpo-5800: headers parameter of wsgiref.headers.Headers is now optional.
- Initial patch by Pablo Torres Navarrete and SilentGhost.
-
-- bpo-21781: ssl.RAND_add() now supports strings longer than 2 GB.
-
-- bpo-21679: Prevent extraneous fstat() calls during open(). Patch by
- Bohuslav Kabrda.
-
-- bpo-21863: cProfile now displays the module name of C extension functions,
- in addition to their own name.
-
-- bpo-11453: asyncore: emit a ResourceWarning when an unclosed file_wrapper
- object is destroyed. The destructor now closes the file if needed. The
- close() method can now be called twice: the second call does nothing.
-
-- bpo-21858: Better handling of Python exceptions in the sqlite3 module.
-
-- bpo-21476: Make sure the email.parser.BytesParser TextIOWrapper is
- discarded after parsing, so the input file isn't unexpectedly closed.
-
-- bpo-20295: imghdr now recognizes OpenEXR format images.
-
-- bpo-21729: Used the "with" statement in the dbm.dumb module to ensure
- files closing. Patch by Claudiu Popa.
-
-- bpo-21491: socketserver: Fix a race condition in child processes reaping.
-
-- bpo-21719: Added the ``st_file_attributes`` field to os.stat_result on
- Windows.
-
-- bpo-21832: Require named tuple inputs to be exact strings.
-
-- bpo-21722: The distutils "upload" command now exits with a non-zero return
- code when uploading fails. Patch by Martin Dengler.
-
-- bpo-21723: asyncio.Queue: support any type of number (ex: float) for the
- maximum size. Patch written by Vajrasky Kok.
-
-- bpo-21711: support for "site-python" directories has now been removed from
- the site module (it was deprecated in 3.4).
-
-- bpo-17552: new socket.sendfile() method allowing a file to be sent over a
- socket by using high-performance os.sendfile() on UNIX. Patch by Giampaolo
- Rodola'.
-
-- bpo-18039: dbm.dump.open() now always creates a new database when the flag
- has the value 'n'. Patch by Claudiu Popa.
-
-- bpo-21326: Add a new is_closed() method to asyncio.BaseEventLoop.
- run_forever() and run_until_complete() methods of asyncio.BaseEventLoop
- now raise an exception if the event loop was closed.
-
-- bpo-21766: Prevent a security hole in CGIHTTPServer by URL unquoting paths
- before checking for a CGI script at that path.
-
-- bpo-21310: Fixed possible resource leak in failed open().
-
-- bpo-21256: Printout of keyword args should be in deterministic order in a
- mock function call. This will help to write better doctests.
-
-- bpo-21677: Fixed chaining nonnormalized exceptions in io close() methods.
-
-- bpo-11709: Fix the pydoc.help function to not fail when sys.stdin is not a
- valid file.
-
-- bpo-21515: tempfile.TemporaryFile now uses os.O_TMPFILE flag is available.
-
-- bpo-13223: Fix pydoc.writedoc so that the HTML documentation for methods
- that use 'self' in the example code is generated correctly.
-
-- bpo-21463: In urllib.request, fix pruning of the FTP cache.
-
-- bpo-21618: The subprocess module could fail to close open fds that were
- inherited by the calling process and already higher than POSIX resource
- limits would otherwise allow. On systems with a functioning /proc/self/fd
- or /dev/fd interface the max is now ignored and all fds are closed.
-
-- bpo-20383: Introduce importlib.util.module_from_spec() as the preferred
- way to create a new module.
-
-- bpo-21552: Fixed possible integer overflow of too long string lengths in
- the tkinter module on 64-bit platforms.
-
-- bpo-14315: The zipfile module now ignores extra fields in the central
- directory that are too short to be parsed instead of letting a
- struct.unpack error bubble up as this "bad data" appears in many real
- world zip files in the wild and is ignored by other zip tools.
-
-- bpo-13742: Added "key" and "reverse" parameters to heapq.merge(). (First
- draft of patch contributed by Simon Sapin.)
-
-- bpo-21402: tkinter.ttk now works when default root window is not set.
-
-- bpo-3015: _tkinter.create() now creates tkapp object with wantobject=1 by
- default.
-
-- bpo-10203: sqlite3.Row now truly supports sequence protocol. In
- particular it supports reverse() and negative indices. Original patch by
- Claudiu Popa.
-
-- bpo-18807: If copying (no symlinks) specified for a venv, then the python
- interpreter aliases (python, python3) are now created by copying rather
- than symlinking.
-
-- bpo-20197: Added support for the WebP image type in the imghdr module.
- Patch by Fabrice Aneche and Claudiu Popa.
-
-- bpo-21513: Speedup some properties of IP addresses (IPv4Address,
- IPv6Address) such as .is_private or .is_multicast.
-
-- bpo-21137: Improve the repr for threading.Lock() and its variants by
- showing the "locked" or "unlocked" status. Patch by Berker Peksag.
-
-- bpo-21538: The plistlib module now supports loading of binary plist files
- when reference or offset size is not a power of two.
-
-- bpo-21455: Add a default backlog to socket.listen().
-
-- bpo-21525: Most Tkinter methods which accepted tuples now accept lists
- too.
-
-- bpo-22166: With the assistance of a new internal _codecs._forget_codec
- helping function, test_codecs now clears the encoding caches to avoid the
- appearance of a reference leak
-
-- bpo-22236: Tkinter tests now don't reuse default root window. New root
- window is created for every test class.
-
-- bpo-10744: Fix :pep:`3118` format strings on ctypes objects with a
- nontrivial shape.
-
-- bpo-20826: Optimize ipaddress.collapse_addresses().
-
-- bpo-21487: Optimize ipaddress.summarize_address_range() and
- ipaddress.{IPv4Network,IPv6Network}.subnets().
-
-- bpo-21486: Optimize parsing of netmasks in ipaddress.IPv4Network and
- ipaddress.IPv6Network.
-
-- bpo-13916: Disallowed the surrogatepass error handler for non UTF-\*
- encodings.
-
-- bpo-20998: Fixed re.fullmatch() of repeated single character pattern with
- ignore case. Original patch by Matthew Barnett.
-
-- bpo-21075: fileinput.FileInput now reads bytes from standard stream if
- binary mode is specified. Patch by Sam Kimbrel.
-
-- bpo-19775: Add a samefile() method to pathlib Path objects. Initial patch
- by Vajrasky Kok.
-
-- bpo-21226: Set up modules properly in PyImport_ExecCodeModuleObject (and
- friends).
-
-- bpo-21398: Fix a unicode error in the pydoc pager when the documentation
- contains characters not encodable to the stdout encoding.
-
-- bpo-16531: ipaddress.IPv4Network and ipaddress.IPv6Network now accept an
- (address, netmask) tuple argument, so as to easily construct network
- objects from existing addresses.
-
-- bpo-21156: importlib.abc.InspectLoader.source_to_code() is now a
- staticmethod.
-
-- bpo-21424: Simplified and optimized heaqp.nlargest() and nmsmallest() to
- make fewer tuple comparisons.
-
-- bpo-21396: Fix TextIOWrapper(..., write_through=True) to not force a
- flush() on the underlying binary stream. Patch by akira.
-
-- bpo-18314: Unlink now removes junctions on Windows. Patch by Kim Gräsman
-
-- bpo-21088: Bugfix for curses.window.addch() regression in 3.4.0. In
- porting to Argument Clinic, the first two arguments were reversed.
-
-- bpo-21407: _decimal: The module now supports function signatures.
-
-- bpo-10650: Remove the non-standard 'watchexp' parameter from the
- Decimal.quantize() method in the Python version. It had never been
- present in the C version.
-
-- bpo-21469: Reduced the risk of false positives in robotparser by checking
- to make sure that robots.txt has been read or does not exist prior to
- returning True in can_fetch().
-
-- bpo-19414: Have the OrderedDict mark deleted links as unusable. This gives
- an early failure if the link is deleted during iteration.
-
-- bpo-21421: Add __slots__ to the MappingViews ABC. Patch by Josh Rosenberg.
-
-- bpo-21101: Eliminate double hashing in the C speed-up code for
- collections.Counter().
-
-- bpo-21321: itertools.islice() now releases the reference to the source
- iterator when the slice is exhausted. Patch by Anton Afanasyev.
-
-- bpo-21057: TextIOWrapper now allows the underlying binary stream's read()
- or read1() method to return an arbitrary bytes-like object (such as a
- memoryview). Patch by Nikolaus Rath.
-
-- bpo-20951: SSLSocket.send() now raises either SSLWantReadError or
- SSLWantWriteError on a non-blocking socket if the operation would block.
- Previously, it would return 0. Patch by Nikolaus Rath.
-
-- bpo-13248: removed previously deprecated asyncore.dispatcher __getattr__
- cheap inheritance hack.
-
-- bpo-9815: assertRaises now tries to clear references to local variables in
- the exception's traceback.
-
-- bpo-19940: ssl.cert_time_to_seconds() now interprets the given time string
- in the UTC timezone (as specified in RFC 5280), not the local timezone.
-
-- bpo-13204: Calling sys.flags.__new__ would crash the interpreter, now it
- raises a TypeError.
-
-- bpo-19385: Make operations on a closed dbm.dumb database always raise the
- same exception.
-
-- bpo-21207: Detect when the os.urandom cached fd has been closed or
- replaced, and open it anew.
-
-- bpo-21291: subprocess's Popen.wait() is now thread safe so that multiple
- threads may be calling wait() or poll() on a Popen instance at the same
- time without losing the Popen.returncode value.
-
-- bpo-21127: Path objects can now be instantiated from str subclass
- instances (such as ``numpy.str_``).
-
-- bpo-15002: urllib.response object to use _TemporaryFileWrapper (and
- _TemporaryFileCloser) facility. Provides a better way to handle file
- descriptor close. Patch contributed by Christian Theune.
-
-- bpo-12220: mindom now raises a custom ValueError indicating it doesn't
- support spaces in URIs instead of letting a 'split' ValueError bubble up.
-
-- bpo-21068: The ssl.PROTOCOL* constants are now enum members.
-
-- bpo-21276: posixmodule: Don't define USE_XATTRS on KFreeBSD and the Hurd.
-
-- bpo-21262: New method assert_not_called for Mock. It raises AssertionError
- if the mock has been called.
-
-- bpo-21238: New keyword argument `unsafe` to Mock. It raises
- `AttributeError` incase of an attribute startswith assert or assret.
-
-- bpo-20896: ssl.get_server_certificate() now uses PROTOCOL_SSLv23, not
- PROTOCOL_SSLv3, for maximum compatibility.
-
-- bpo-21239: patch.stopall() didn't work deterministically when the same
- name was patched more than once.
-
-- bpo-21203: Updated fileConfig and dictConfig to remove inconsistencies.
- Thanks to Jure Koren for the patch.
-
-- bpo-21222: Passing name keyword argument to mock.create_autospec now
- works.
-
-- bpo-21197: Add lib64 -> lib symlink in venvs on 64-bit non-OS X POSIX.
-
-- bpo-17498: Some SMTP servers disconnect after certain errors, violating
- strict RFC conformance. Instead of losing the error code when we issue
- the subsequent RSET, smtplib now returns the error code and defers raising
- the SMTPServerDisconnected error until the next command is issued.
-
-- bpo-17826: setting an iterable side_effect on a mock function created by
- create_autospec now works. Patch by Kushal Das.
-
-- bpo-7776: Fix ``Host:`` header and reconnection when using
- http.client.HTTPConnection.set_tunnel(). Patch by Nikolaus Rath.
-
-- bpo-20968: unittest.mock.MagicMock now supports division. Patch by
- Johannes Baiter.
-
-- bpo-21529: Fix arbitrary memory access in JSONDecoder.raw_decode with a
- negative second parameter. Bug reported by Guido Vranken. (See also:
- CVE-2014-4616)
-
-- bpo-21169: getpass now handles non-ascii characters that the input stream
- encoding cannot encode by re-encoding using the replace error handler.
-
-- bpo-21171: Fixed undocumented filter API of the rot13 codec. Patch by
- Berker Peksag.
-
-- bpo-20539: Improved math.factorial error message for large positive inputs
- and changed exception type (OverflowError -> ValueError) for large
- negative inputs.
-
-- bpo-21172: isinstance check relaxed from dict to collections.Mapping.
-
-- bpo-21155: asyncio.EventLoop.create_unix_server() now raises a ValueError
- if path and sock are specified at the same time.
-
-- bpo-21136: Avoid unnecessary normalization of Fractions resulting from
- power and other operations. Patch by Raymond Hettinger.
-
-- bpo-17621: Introduce importlib.util.LazyLoader.
-
-- bpo-21076: signal module constants were turned into enums. Patch by
- Giampaolo Rodola'.
-
-- bpo-20636: Improved the repr of Tkinter widgets.
-
-- bpo-19505: The items, keys, and values views of OrderedDict now support
- reverse iteration using reversed().
-
-- bpo-21149: Improved thread-safety in logging cleanup during interpreter
- shutdown. Thanks to Devin Jeanpierre for the patch.
-
-- bpo-21058: Fix a leak of file descriptor in
- :func:`tempfile.NamedTemporaryFile`, close the file descriptor if
- :func:`io.open` fails
-
-- bpo-21200: Return None from pkgutil.get_loader() when __spec__ is missing.
-
-- bpo-21013: Enhance ssl.create_default_context() when used for server side
- sockets to provide better security by default.
-
-- bpo-20145: `assertRaisesRegex` and `assertWarnsRegex` now raise a
- TypeError if the second argument is not a string or compiled regex.
-
-- bpo-20633: Replace relative import by absolute import.
-
-- bpo-20980: Stop wrapping exception when using ThreadPool.
-
-- bpo-21082: In os.makedirs, do not set the process-wide umask. Note this
- changes behavior of makedirs when exist_ok=True.
-
-- bpo-20990: Fix issues found by pyflakes for multiprocessing.
-
-- bpo-21015: SSL contexts will now automatically select an elliptic curve
- for ECDH key exchange on OpenSSL 1.0.2 and later, and otherwise default to
- "prime256v1".
-
-- bpo-21000: Improve the command-line interface of json.tool.
-
-- bpo-20995: Enhance default ciphers used by the ssl module to enable better
- security and prioritize perfect forward secrecy.
-
-- bpo-20884: Don't assume that __file__ is defined on importlib.__init__.
-
-- bpo-21499: Ignore __builtins__ in several test_importlib.test_api tests.
-
-- bpo-20627: xmlrpc.client.ServerProxy is now a context manager.
-
-- bpo-19165: The formatter module now raises DeprecationWarning instead of
- PendingDeprecationWarning.
-
-- bpo-13936: Remove the ability of datetime.time instances to be considered
- false in boolean contexts.
-
-- bpo-18931: selectors module now supports /dev/poll on Solaris. Patch by
- Giampaolo Rodola'.
-
-- bpo-19977: When the ``LC_TYPE`` locale is the POSIX locale (``C`` locale),
- :py:data:`sys.stdin` and :py:data:`sys.stdout` are now using the
- ``surrogateescape`` error handler, instead of the ``strict`` error
- handler.
-
-- bpo-20574: Implement incremental decoder for cp65001 code (Windows code
- page 65001, Microsoft UTF-8).
-
-- bpo-20879: Delay the initialization of encoding and decoding tables for
- base32, ascii85 and base85 codecs in the base64 module, and delay the
- initialization of the unquote_to_bytes() table of the urllib.parse module,
- to not waste memory if these modules are not used.
-
-- bpo-19157: Include the broadcast address in the usuable hosts for IPv6 in
- ipaddress.
-
-- bpo-11599: When an external command (e.g. compiler) fails, distutils now
- prints out the whole command line (instead of just the command name) if
- the environment variable DISTUTILS_DEBUG is set.
-
-- bpo-4931: distutils should not produce unhelpful "error: None" messages
- anymore. distutils.util.grok_environment_error is kept but doc-deprecated.
-
-- bpo-20875: Prevent possible gzip "'read' is not defined" NameError. Patch
- by Claudiu Popa.
-
-- bpo-11558: ``email.message.Message.attach`` now returns a more useful
- error message if ``attach`` is called on a message for which
- ``is_multipart`` is False.
-
-- bpo-20283: RE pattern methods now accept the string keyword parameters as
- documented. The pattern and source keyword parameters are left as
- deprecated aliases.
-
-- bpo-20778: Fix modulefinder to work with bytecode-only modules.
-
-- bpo-20791: copy.copy() now doesn't make a copy when the input is a bytes
- object. Initial patch by Peter Otten.
-
-- bpo-19748: On AIX, time.mktime() now raises an OverflowError for year
- outsize range [1902; 2037].
-
-- bpo-19573: inspect.signature: Use enum for parameter kind constants.
-
-- bpo-20726: inspect.signature: Make Signature and Parameter picklable.
-
-- bpo-17373: Add inspect.Signature.from_callable method.
-
-- bpo-20378: Improve repr of inspect.Signature and inspect.Parameter.
-
-- bpo-20816: Fix inspect.getcallargs() to raise correct TypeError for
- missing keyword-only arguments. Patch by Jeremiah Lowin.
-
-- bpo-20817: Fix inspect.getcallargs() to fail correctly if more than 3
- arguments are missing. Patch by Jeremiah Lowin.
-
-- bpo-6676: Ensure a meaningful exception is raised when attempting to parse
- more than one XML document per pyexpat xmlparser instance. (Original
- patches by Hirokazu Yamamoto and Amaury Forgeot d'Arc, with suggested
- wording by David Gutteridge)
-
-- bpo-21117: Fix inspect.signature to better support functools.partial. Due
- to the specifics of functools.partial implementation,
- positional-or-keyword arguments passed as keyword arguments become
- keyword-only.
-
-- bpo-20334: inspect.Signature and inspect.Parameter are now hashable.
- Thanks to Antony Lee for bug reports and suggestions.
-
-- bpo-15916: doctest.DocTestSuite returns an empty unittest.TestSuite
- instead of raising ValueError if it finds no tests
-
-- bpo-21209: Fix asyncio.tasks.CoroWrapper to workaround a bug in yield-from
- implementation in CPythons prior to 3.4.1.
-
-- asyncio: Add gi_{frame,running,code} properties to CoroWrapper (upstream
- issue #163).
-
-- bpo-21311: Avoid exception in _osx_support with non-standard compiler
- configurations. Patch by John Szakmeister.
-
-- bpo-11571: Ensure that the turtle window becomes the topmost window when
- launched on OS X.
-
-- bpo-21801: Validate that __signature__ is None or an instance of
- Signature.
-
-- bpo-21923: Prevent AttributeError in
- distutils.sysconfig.customize_compiler due to possible uninitialized
- _config_vars.
-
-- bpo-21323: Fix http.server to again handle scripts in CGI subdirectories,
- broken by the fix for security issue #19435. Patch by Zach Byrne.
-
-- bpo-22733: Fix ffi_prep_args not zero-extending argument values correctly
- on 64-bit Windows.
-
-- bpo-23302: Default to TCP_NODELAY=1 upon establishing an HTTPConnection.
- Removed use of hard-coded MSS as it's an optimization that's no longer
- needed with Nagle disabled.
-
-IDLE
-----
-
-- bpo-20577: Configuration of the max line length for the FormatParagraph
- extension has been moved from the General tab of the Idle preferences
- dialog to the FormatParagraph tab of the Config Extensions dialog. Patch
- by Tal Einat.
-
-- bpo-16893: Update Idle doc chapter to match current Idle and add new
- information.
-
-- bpo-3068: Add Idle extension configuration dialog to Options menu. Changes
- are written to HOME/.idlerc/config-extensions.cfg. Original patch by Tal
- Einat.
-
-- bpo-16233: A module browser (File : Class Browser, Alt+C) requires an
- editor window with a filename. When Class Browser is requested otherwise,
- from a shell, output window, or 'Untitled' editor, Idle no longer displays
- an error box. It now pops up an Open Module box (Alt+M). If a valid name
- is entered and a module is opened, a corresponding browser is also opened.
-
-- bpo-4832: Save As to type Python files automatically adds .py to the name
- you enter (even if your system does not display it). Some systems
- automatically add .txt when type is Text files.
-
-- bpo-21986: Code objects are not normally pickled by the pickle module. To
- match this, they are no longer pickled when running under Idle.
-
-- bpo-17390: Adjust Editor window title; remove 'Python', move version to
- end.
-
-- bpo-14105: Idle debugger breakpoints no longer disappear when inserting or
- deleting lines.
-
-- bpo-17172: Turtledemo can now be run from Idle. Currently, the entry is on
- the Help menu, but it may move to Run. Patch by Ramchandra Apt and Lita
- Cho.
-
-- bpo-21765: Add support for non-ascii identifiers to HyperParser.
-
-- bpo-21940: Add unittest for WidgetRedirector. Initial patch by Saimadhav
- Heblikar.
-
-- bpo-18592: Add unittest for SearchDialogBase. Patch by Phil Webster.
-
-- bpo-21694: Add unittest for ParenMatch. Patch by Saimadhav Heblikar.
-
-- bpo-21686: add unittest for HyperParser. Original patch by Saimadhav
- Heblikar.
-
-- bpo-12387: Add missing upper(lower)case versions of default Windows key
- bindings for Idle so Caps Lock does not disable them. Patch by Roger
- Serwy.
-
-- bpo-21695: Closing a Find-in-files output window while the search is still
- in progress no longer closes Idle.
-
-- bpo-18910: Add unittest for textView. Patch by Phil Webster.
-
-- bpo-18292: Add unittest for AutoExpand. Patch by Saihadhav Heblikar.
-
-- bpo-18409: Add unittest for AutoComplete. Patch by Phil Webster.
-
-- bpo-21477: htest.py - Improve framework, complete set of tests. Patches by
- Saimadhav Heblikar
-
-- bpo-18104: Add idlelib/idle_test/htest.py with a few sample tests to begin
- consolidating and improving human-validated tests of Idle. Change other
- files as needed to work with htest. Running the module as __main__ runs
- all tests.
-
-- bpo-21139: Change default paragraph width to 72, the :pep:`8`
- recommendation.
-
-- bpo-21284: Paragraph reformat test passes after user changes reformat
- width.
-
-- bpo-17654: Ensure IDLE menus are customized properly on OS X for
- non-framework builds and for all variants of Tk.
-
-- bpo-23180: Rename IDLE "Windows" menu item to "Window". Patch by Al
- Sweigart.
-
-Build
------
-
-- bpo-15506: Use standard PKG_PROG_PKG_CONFIG autoconf macro in the
- configure script.
-
-- bpo-22935: Allow the ssl module to be compiled if openssl doesn't support
- SSL 3.
-
-- bpo-22592: Drop support of the Borland C compiler to build Python. The
- distutils module still supports it to build extensions.
-
-- bpo-22591: Drop support of MS-DOS, especially of the DJGPP compiler
- (MS-DOS port of GCC).
-
-- bpo-16537: Check whether self.extensions is empty in setup.py. Patch by
- Jonathan Hosmer.
-
-- bpo-22359: Remove incorrect uses of recursive make. Patch by Jonas
- Wagner.
-
-- bpo-21958: Define HAVE_ROUND when building with Visual Studio 2013 and
- above. Patch by Zachary Turner.
-
-- bpo-18093: the programs that embed the CPython runtime are now in a
- separate "Programs" directory, rather than being kept in the Modules
- directory.
-
-- bpo-15759: "make suspicious", "make linkcheck" and "make doctest" in Doc/
- now display special message when and only when there are failures.
-
-- bpo-21141: The Windows build process no longer attempts to find Perl,
- instead relying on OpenSSL source being configured and ready to build.
- The ``PCbuild\build_ssl.py`` script has been re-written and re-named to
- ``PCbuild\prepare_ssl.py``, and takes care of configuring OpenSSL source
- for both 32 and 64 bit platforms. OpenSSL sources obtained from
- svn.python.org will always be pre-configured and ready to build.
-
-- bpo-21037: Add a build option to enable AddressSanitizer support.
-
-- bpo-19962: The Windows build process now creates "python.bat" in the root
- of the source tree, which passes all arguments through to the most
- recently built interpreter.
-
-- bpo-21285: Refactor and fix curses configure check to always search in a
- ncursesw directory.
-
-- bpo-15234: For BerkeleyDB and Sqlite, only add the found library and
- include directories if they aren't already being searched. This avoids an
- explicit runtime library dependency.
-
-- bpo-17861: Tools/scripts/generate_opcode_h.py automatically regenerates
- Include/opcode.h from Lib/opcode.py if the latter gets any change.
-
-- bpo-20644: OS X installer build support for documentation build changes in
- 3.4.1: assume externally supplied sphinx-build is available in /usr/bin.
-
-- bpo-20022: Eliminate use of deprecated bundlebuilder in OS X builds.
-
-- bpo-15968: Incorporated Tcl, Tk, and Tix builds into the Windows build
- solution.
-
-- bpo-17095: Fix Modules/Setup *shared* support.
-
-- bpo-21811: Anticipated fixes to support OS X versions > 10.9.
-
-- bpo-21166: Prevent possible segfaults and other random failures of python
- --generate-posix-vars in pybuilddir.txt build target.
-
-- bpo-18096: Fix library order returned by python-config.
-
-- bpo-17219: Add library build dir for Python extension cross-builds.
-
-- bpo-22919: Windows build updated to support VC 14.0 (Visual Studio 2015),
- which will be used for the official release.
-
-- bpo-21236: Build _msi.pyd with cabinet.lib instead of fci.lib
-
-- bpo-17128: Use private version of OpenSSL for OS X 10.5+ installer.
-
-C API
------
-
-- bpo-14203: Remove obsolete support for view==NULL in PyBuffer_FillInfo(),
- bytearray_getbuffer(), bytesiobuf_getbuffer() and array_buffer_getbuf().
- All functions now raise BufferError in that case.
-
-- bpo-22445: PyBuffer_IsContiguous() now implements precise contiguity
- tests, compatible with NumPy's NPY_RELAXED_STRIDES_CHECKING compilation
- flag. Previously the function reported false negatives for corner cases.
-
-- bpo-22079: PyType_Ready() now checks that statically allocated type has no
- dynamically allocated bases.
-
-- bpo-22453: Removed non-documented macro PyObject_REPR().
-
-- bpo-18395: Rename ``_Py_char2wchar()`` to :c:func:`Py_DecodeLocale`,
- rename ``_Py_wchar2char()`` to :c:func:`Py_EncodeLocale`, and document
- these functions.
-
-- bpo-21233: Add new C functions: PyMem_RawCalloc(), PyMem_Calloc(),
- PyObject_Calloc(), _PyObject_GC_Calloc(). bytes(int) is now using
- ``calloc()`` instead of ``malloc()`` for large objects which is faster and
- use less memory.
-
-- bpo-20942: PyImport_ImportFrozenModuleObject() no longer sets __file__ to
- match what importlib does; this affects _frozen_importlib as well as any
- module loaded using imp.init_frozen().
-
-Documentation
--------------
-
-- bpo-19548: Update the codecs module documentation to better cover the
- distinction between text encodings and other codecs, together with other
- clarifications. Patch by Martin Panter.
-
-- bpo-22394: Doc/Makefile now supports ``make venv PYTHON=../python`` to
- create a venv for generating the documentation, e.g., ``make html
- PYTHON=venv/bin/python3``.
-
-- bpo-21514: The documentation of the json module now refers to new JSON RFC
- 7159 instead of obsoleted RFC 4627.
-
-- bpo-21777: The binary sequence methods on bytes and bytearray are now
- documented explicitly, rather than assuming users will be able to derive
- the expected behaviour from the behaviour of the corresponding str
- methods.
-
-- bpo-6916: undocument deprecated asynchat.fifo class.
-
-- bpo-17386: Expanded functionality of the ``Doc/make.bat`` script to make
- it much more comparable to ``Doc/Makefile``.
-
-- bpo-21312: Update the thread_foobar.h template file to include newer
- threading APIs. Patch by Jack McCracken.
-
-- bpo-21043: Remove the recommendation for specific CA organizations and to
- mention the ability to load the OS certificates.
-
-- bpo-20765: Add missing documentation for PurePath.with_name() and
- PurePath.with_suffix().
-
-- bpo-19407: New package installation and distribution guides based on the
- Python Packaging Authority tools. Existing guides have been retained as
- legacy links from the distutils docs, as they still contain some required
- reference material for tool developers that isn't recorded anywhere else.
-
-- bpo-19697: Document cases where __main__.__spec__ is None.
-
-Tests
------
-
-- bpo-18982: Add tests for CLI of the calendar module.
-
-- bpo-19548: Added some additional checks to test_codecs to ensure that
- statements in the updated documentation remain accurate. Patch by Martin
- Panter.
-
-- bpo-22838: All test_re tests now work with unittest test discovery.
-
-- bpo-22173: Update lib2to3 tests to use unittest test discovery.
-
-- bpo-16000: Convert test_curses to use unittest.
-
-- bpo-21456: Skip two tests in test_urllib2net.py if _ssl module not
- present. Patch by Remi Pointel.
-
-- bpo-20746: Fix test_pdb to run in refleak mode (-R). Patch by Xavier de
- Gaye.
-
-- bpo-22060: test_ctypes has been somewhat cleaned up and simplified; it now
- uses unittest test discovery to find its tests.
-
-- bpo-22104: regrtest.py no longer holds a reference to the suite of tests
- loaded from test modules that don't define test_main().
-
-- bpo-22111: Assorted cleanups in test_imaplib. Patch by Milan Oberkirch.
-
-- bpo-22002: Added ``load_package_tests`` function to test.support and used
- it to implement/augment test discovery in test_asyncio, test_email,
- test_importlib, test_json, and test_tools.
-
-- bpo-21976: Fix test_ssl to accept LibreSSL version strings. Thanks to
- William Orr.
-
-- bpo-21918: Converted test_tools from a module to a package containing
- separate test files for each tested script.
-
-- bpo-9554: Use modern unittest features in test_argparse. Initial patch by
- Denver Coneybeare and Radu Voicilas.
-
-- bpo-20155: Changed HTTP method names in failing tests in test_httpservers
- so that packet filtering software (specifically Windows Base Filtering
- Engine) does not interfere with the transaction semantics expected by the
- tests.
-
-- bpo-19493: Refactored the ctypes test package to skip tests explicitly
- rather than silently.
-
-- bpo-18492: All resources are now allowed when tests are not run by
- regrtest.py.
-
-- bpo-21634: Fix pystone micro-benchmark: use floor division instead of true
- division to benchmark integers instead of floating point numbers. Set
- pystone version to 1.2. Patch written by Lennart Regebro.
-
-- bpo-21605: Added tests for Tkinter images.
-
-- bpo-21493: Added test for ntpath.expanduser(). Original patch by Claudiu
- Popa.
-
-- bpo-19925: Added tests for the spwd module. Original patch by Vajrasky
- Kok.
-
-- bpo-21522: Added Tkinter tests for Listbox.itemconfigure(),
- PanedWindow.paneconfigure(), and Menu.entryconfigure().
-
-- bpo-17756: Fix test_code test when run from the installed location.
-
-- bpo-17752: Fix distutils tests when run from the installed location.
-
-- bpo-18604: Consolidated checks for GUI availability. All platforms now at
- least check whether Tk can be instantiated when the GUI resource is
- requested.
-
-- bpo-21275: Fix a socket test on KFreeBSD.
-
-- bpo-21223: Pass test_site/test_startup_imports when some of the extensions
- are built as builtins.
-
-- bpo-20635: Added tests for Tk geometry managers.
-
-- Add test case for freeze.
-
-- bpo-20743: Fix a reference leak in test_tcl.
-
-- bpo-21097: Move test_namespace_pkgs into test_importlib.
-
-- bpo-21503: Use test_both() consistently in test_importlib.
-
-- bpo-20939: Avoid various network test failures due to new redirect of
- http://www.python.org/ to https://www.python.org: use
- http://www.example.com instead.
-
-- bpo-20668: asyncio tests no longer rely on tests.txt file. (Patch by
- Vajrasky Kok)
-
-- bpo-21093: Prevent failures of ctypes test_macholib on OS X if a copy of
- libz exists in $HOME/lib or /usr/local/lib.
-
-- bpo-22770: Prevent some Tk segfaults on OS X when running gui tests.
-
-- bpo-23211: Workaround test_logging failure on some OS X 10.6 systems.
-
-- bpo-23345: Prevent test_ssl failures with large OpenSSL patch level values
- (like 0.9.8zc).
-
-Tools/Demos
------------
-
-- bpo-22314: pydoc now works when the LINES environment variable is set.
-
-- bpo-22615: Argument Clinic now supports the "type" argument for the int
- converter. This permits using the int converter with enums and typedefs.
-
-- bpo-20076: The makelocalealias.py script no longer ignores UTF-8 mapping.
-
-- bpo-20079: The makelocalealias.py script now can parse the SUPPORTED file
- from glibc sources and supports command line options for source paths.
-
-- bpo-22201: Command-line interface of the zipfile module now correctly
- extracts ZIP files with directory entries. Patch by Ryan Wilson.
-
-- bpo-22120: For functions using an unsigned integer return converter,
- Argument Clinic now generates a cast to that type for the comparison to -1
- in the generated code. (This suppresses a compilation warning.)
-
-- bpo-18974: Tools/scripts/diff.py now uses argparse instead of optparse.
-
-- bpo-21906: Make Tools/scripts/md5sum.py work in Python 3. Patch by Zachary
- Ware.
-
-- bpo-21629: Fix Argument Clinic's "--converters" feature.
-
-- Add support for ``yield from`` to 2to3.
-
-- Add support for the :pep:`465` matrix multiplication operator to 2to3.
-
-- bpo-16047: Fix module exception list and __file__ handling in freeze.
- Patch by Meador Inge.
-
-- bpo-11824: Consider ABI tags in freeze. Patch by Meador Inge.
-
-- bpo-20535: PYTHONWARNING no longer affects the run_tests.py script. Patch
- by Arfrever Frehtes Taifersar Arahesis.
-
-Windows
--------
-
-- bpo-23260: Update Windows installer
-
-- The bundled version of Tcl/Tk has been updated to 8.6.3. The most visible
- result of this change is the addition of new native file dialogs when
- running on Windows Vista or newer. See Tcl/Tk's TIP 432 for more
- information. Also, this version of Tcl/Tk includes support for Windows
- 10.
-
-- bpo-17896: The Windows build scripts now expect external library sources
- to be in ``PCbuild\..\externals`` rather than ``PCbuild\..\..``.
-
-- bpo-17717: The Windows build scripts now use a copy of NASM pulled from
- svn.python.org to build OpenSSL.
-
-- bpo-21907: Improved the batch scripts provided for building Python.
-
-- bpo-22644: The bundled version of OpenSSL has been updated to 1.0.1j.
-
-- bpo-10747: Use versioned labels in the Windows start menu. Patch by Olive
- Kilburn.
-
-- bpo-22980: .pyd files with a version and platform tag (for example,
- ".cp35-win32.pyd") will now be loaded in preference to those without tags.
-
-
-**(For information about older versions, consult the HISTORY file.)**
--- /dev/null
+.. bpo: 41304
+.. date: 2020-07-15-20-15-08
+.. nonce: vNEeYA
+.. release date: 2020-10-05
+.. section: Security
+
+Fixes `python3x._pth` being ignored on Windows, caused by the fix for
+:issue:`29778` (CVE-2020-15801).
+
+..
+
+.. bpo: 41162
+.. date: 2020-07-03-20-41-29
+.. nonce: tb8pVj
+.. section: Security
+
+Audit hooks are now cleared later during finalization to avoid missing
+events.
+
+..
+
+.. bpo: 29778
+.. date: 2020-07-03-17-21-37
+.. nonce: cR_fGS
+.. section: Security
+
+Ensure :file:`python3.dll` is loaded from correct locations when Python is
+embedded (CVE-2020-15523).
+
+..
+
+.. bpo: 41004
+.. date: 2020-06-29-16-02-29
+.. nonce: ovF0KZ
+.. section: Security
+
+The __hash__() methods of ipaddress.IPv4Interface and
+ipaddress.IPv6Interface incorrectly generated constant hash values of 32 and
+128 respectively. This resulted in always causing hash collisions. The fix
+uses hash() to generate hash values for the tuple of (address, mask length,
+network address).
+
+..
+
+.. bpo: 39603
+.. date: 2020-02-12-14-17-39
+.. nonce: Gt3RSg
+.. section: Security
+
+Prevent http header injection by rejecting control characters in
+http.client.putrequest(...).
+
+..
+
+.. bpo: 41909
+.. date: 2020-10-04-10-55-12
+.. nonce: BqHPcm
+.. section: Core and Builtins
+
+Fixed stack overflow in :func:`issubclass` and :func:`isinstance` when
+getting the ``__bases__`` attribute leads to infinite recursion.
+
+..
+
+.. bpo: 41922
+.. date: 2020-10-04-01-02-58
+.. nonce: kHGT8I
+.. section: Core and Builtins
+
+Speed up calls to ``reversed()`` by using the :pep:`590` ``vectorcall``
+calling convention. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 41873
+.. date: 2020-09-28-08-58-28
+.. nonce: VzEDhA
+.. section: Core and Builtins
+
+Calls to ``float()`` are now faster due to the ``vectorcall`` calling
+convention. Patch by Dennis Sweeney.
+
+..
+
+.. bpo: 41870
+.. date: 2020-09-27-22-23-14
+.. nonce: 2v6_v4
+.. section: Core and Builtins
+
+Speed up calls to ``bool()`` by using the :pep:`590` ``vectorcall`` calling
+convention. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-26-14-43-30
+.. nonce: aJS9B3
+.. section: Core and Builtins
+
+Port the :mod:`_bisect` module to the multi-phase initialization API
+(:pep:`489`).
+
+..
+
+.. bpo: 39934
+.. date: 2020-09-24-12-15-45
+.. nonce: YVHTCF
+.. section: Core and Builtins
+
+Correctly count control blocks in 'except' in compiler. Ensures that a
+syntax error, rather a fatal error, occurs for deeply nested, named
+exception handlers.
+
+..
+
+.. bpo: 41780
+.. date: 2020-09-15-23-29-49
+.. nonce: bOBUIH
+.. section: Core and Builtins
+
+Fix :meth:`__dir__` of :class:`types.GenericAlias`. Patch by Batuhan
+Taskaya.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-12-18-34-34
+.. nonce: lh335O
+.. section: Core and Builtins
+
+Port the :mod:`_lsprof` extension module to multi-phase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-08-21-58-47
+.. nonce: vdjSLH
+.. section: Core and Builtins
+
+Port the :mod:`cmath` extension module to multi-phase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-08-20-39-43
+.. nonce: jiXmyT
+.. section: Core and Builtins
+
+Port the :mod:`_scproxy` extension module to multi-phase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-07-11-35-02
+.. nonce: rvIexb
+.. section: Core and Builtins
+
+Port the :mod:`termios` extension module to multi-phase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-07-09-45-47
+.. nonce: QuDIut
+.. section: Core and Builtins
+
+Convert the :mod:`_sha256` extension module types to heap types.
+
+..
+
+.. bpo: 41690
+.. date: 2020-09-02-12-00-57
+.. nonce: Ny-Sfy
+.. section: Core and Builtins
+
+Fix a possible stack overflow in the parser when parsing functions and
+classes with a huge amount of arguments. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-01-17-22-35
+.. nonce: CnRME3
+.. section: Core and Builtins
+
+Port the :mod:`_overlapped` extension module to multi-phase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-01-17-08-07
+.. nonce: X9CZgo
+.. section: Core and Builtins
+
+Port the :mod:`_curses_panel` extension module to multi-phase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-01-17-06-02
+.. nonce: 5jZymK
+.. section: Core and Builtins
+
+Port the :mod:`_opcode` extension module to multi-phase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 41681
+.. date: 2020-08-31-17-49-02
+.. nonce: 3-VJiH
+.. section: Core and Builtins
+
+Fixes the wrong error description in the error raised by using 2 `,` in
+format string in f-string and :meth:`str.format`.
+
+..
+
+.. bpo: 41675
+.. date: 2020-08-31-14-53-17
+.. nonce: VSoqWU
+.. section: Core and Builtins
+
+The implementation of :func:`signal.siginterrupt` now uses
+:c:func:`sigaction` (if it is available in the system) instead of the
+deprecated :c:func:`siginterrupt`. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 41670
+.. date: 2020-08-31-11-37-59
+.. nonce: vmRJRx
+.. section: Core and Builtins
+
+Prevent line trace being skipped on platforms not compiled with
+``USE_COMPUTED_GOTOS``. Fixes issue where some lines nested within a
+try-except block were not being traced on Windows.
+
+..
+
+.. bpo: 41654
+.. date: 2020-08-30-20-38-33
+.. nonce: HtnhAM
+.. section: Core and Builtins
+
+Fix a crash that occurred when destroying subclasses of
+:class:`MemoryError`. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-08-28-20-54-04
+.. nonce: 7ijlcI
+.. section: Core and Builtins
+
+Port the :mod:`zlib` extension module to multi-phase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 41631
+.. date: 2020-08-26-11-23-31
+.. nonce: 3jZcd9
+.. section: Core and Builtins
+
+The ``_ast`` module uses again a global state. Using a module state per
+module instance is causing subtle practical problems. For example, the
+Mercurial project replaces the ``__import__()`` function to implement lazy
+import, whereas Python expected that ``import _ast`` always return a fully
+initialized ``_ast`` module.
+
+..
+
+.. bpo: 40077
+.. date: 2020-08-25-22-43-33
+.. nonce: vcxSUa
+.. section: Core and Builtins
+
+Convert :mod:`_operator` to use :c:func:`PyType_FromSpec`.
+
+..
+
+.. bpo: 1653741
+.. date: 2020-08-13-07-19-21
+.. nonce: fubBkb
+.. section: Core and Builtins
+
+Port :mod:`_sha3` to multi-phase init. Convert static types to heap types.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-08-13-07-18-05
+.. nonce: FC13e7
+.. section: Core and Builtins
+
+Port the :mod:`_blake2` extension module to the multi-phase initialization
+API (:pep:`489`).
+
+..
+
+.. bpo: 41533
+.. date: 2020-08-12-20-29-57
+.. nonce: 4pcVAc
+.. section: Core and Builtins
+
+Free the stack allocated in ``va_build_stack`` if ``do_mkstack`` fails and
+the stack is not a ``small_stack``.
+
+..
+
+.. bpo: 41531
+.. date: 2020-08-12-19-32-15
+.. nonce: WgPzjT
+.. section: Core and Builtins
+
+Fix a bug that was dropping keys when compiling dict literals with more than
+0xFFFF elements. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 41525
+.. date: 2020-08-12-07-35-07
+.. nonce: d9q3XL
+.. section: Core and Builtins
+
+The output of ``python --help`` contains now only ASCII characters.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-08-10-16-11-32
+.. nonce: O0d3ym
+.. section: Core and Builtins
+
+Port the :mod:`_sha1`, :mod:`_sha512`, and :mod:`_md5` extension modules to
+multi-phase initialization API (:pep:`489`).
+
+..
+
+.. bpo: 41431
+.. date: 2020-08-02-15-53-12
+.. nonce: TblUBT
+.. section: Core and Builtins
+
+Optimize ``dict_merge()`` for copying dict (e.g. ``dict(d)`` and
+``{}.update(d)``).
+
+..
+
+.. bpo: 41428
+.. date: 2020-07-28-22-43-27
+.. nonce: FM6xsI
+.. section: Core and Builtins
+
+Implement PEP 604. This supports (int | str) etc. in place of Union[str,
+int].
+
+..
+
+.. bpo: 41340
+.. date: 2020-07-27-01-50-06
+.. nonce: pZXfcF
+.. section: Core and Builtins
+
+Removed fallback implementation for ``strdup``.
+
+..
+
+.. bpo: 38156
+.. date: 2020-07-20-17-01-17
+.. nonce: ptcdRy
+.. section: Core and Builtins
+
+Handle interrupts that come after EOF correctly in ``PyOS_StdioReadline``.
+
+..
+
+.. bpo: 41342
+.. date: 2020-07-19-15-40-52
+.. nonce: RRk_m_
+.. section: Core and Builtins
+
+:func:`round` with integer argument is now faster (9--60%).
+
+..
+
+.. bpo: 41334
+.. date: 2020-07-18-18-01-10
+.. nonce: t5xMGp
+.. section: Core and Builtins
+
+Constructors :func:`str`, :func:`bytes` and :func:`bytearray` are now faster
+(around 30--40% for small objects).
+
+..
+
+.. bpo: 41295
+.. date: 2020-07-18-08-15-32
+.. nonce: pu8Ezo
+.. section: Core and Builtins
+
+Resolve a regression in CPython 3.8.4 where defining "__setattr__" in a
+multi-inheritance setup and calling up the hierarchy chain could fail if
+builtins/extension types were involved in the base types.
+
+..
+
+.. bpo: 41323
+.. date: 2020-07-17-11-31-54
+.. nonce: ChbZHh
+.. section: Core and Builtins
+
+Bytecode optimizations are performed directly on the control flow graph.
+This will result in slightly more compact code objects in some
+circumstances.
+
+..
+
+.. bpo: 41247
+.. date: 2020-07-08-22-03-54
+.. nonce: PndYIk
+.. section: Core and Builtins
+
+Always cache the running loop holder when running
+``asyncio.set_running_loop``.
+
+..
+
+.. bpo: 41252
+.. date: 2020-07-08-21-55-23
+.. nonce: nBWL-Y
+.. section: Core and Builtins
+
+Fix incorrect refcounting in _ssl.c's ``_servername_callback()``.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-07-07-16-10-52
+.. nonce: zU-H_n
+.. section: Core and Builtins
+
+Port :mod:`multiprocessing` to multi-phase initialization
+
+..
+
+.. bpo: 1635741
+.. date: 2020-07-06-20-43-19
+.. nonce: LYhsni
+.. section: Core and Builtins
+
+Port :mod:`winapi` to multiphase initialization
+
+..
+
+.. bpo: 41215
+.. date: 2020-07-06-18-36-33
+.. nonce: vFGFIz
+.. section: Core and Builtins
+
+Use non-NULL default values in the PEG parser keyword list to overcome a bug
+that was preventing Python from being properly compiled when using the XLC
+compiler. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 41218
+.. date: 2020-07-06-13-35-17
+.. nonce: oKnSr2
+.. section: Core and Builtins
+
+Python 3.8.3 had a regression where compiling with
+ast.PyCF_ALLOW_TOP_LEVEL_AWAIT would aggressively mark list comprehension
+with CO_COROUTINE. Now only list comprehension making use of async/await
+will tagged as so.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-07-03-23-10-02
+.. nonce: F5coWe
+.. section: Core and Builtins
+
+Port :mod:`faulthandler` to multiphase initialization.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-07-01-20-17-38
+.. nonce: -AtPYu
+.. section: Core and Builtins
+
+Port :mod:`sha256` to multiphase initialization
+
+..
+
+.. bpo: 41175
+.. date: 2020-06-30-20-17-31
+.. nonce: acJoXB
+.. section: Core and Builtins
+
+Guard against a NULL pointer dereference within bytearrayobject triggered by
+the ``bytearray() + bytearray()`` operation.
+
+..
+
+.. bpo: 41100
+.. date: 2020-06-30-04-44-29
+.. nonce: PJwA6F
+.. section: Core and Builtins
+
+add arm64 to the allowable Mac OS arches in mpdecimal.h
+
+..
+
+.. bpo: 41094
+.. date: 2020-06-23-23-26-42
+.. nonce: zEIJse
+.. section: Core and Builtins
+
+Fix decoding errors with audit when open files with non-ASCII names on
+non-UTF-8 locale.
+
+..
+
+.. bpo: 39960
+.. date: 2020-06-23-18-32-41
+.. nonce: Kez3fP
+.. section: Core and Builtins
+
+The "hackcheck" that prevents sneaking around a type's __setattr__() by
+calling the superclass method was rewritten to allow C implemented heap
+types.
+
+..
+
+.. bpo: 41084
+.. date: 2020-06-23-15-10-19
+.. nonce: pt3y7F
+.. section: Core and Builtins
+
+Prefix the error message with 'f-string: ', when parsing an f-string
+expression which throws a :exc:`SyntaxError`.
+
+..
+
+.. bpo: 40521
+.. date: 2020-06-23-07-35-11
+.. nonce: dMNA6k
+.. section: Core and Builtins
+
+Empty frozensets are no longer singletons.
+
+..
+
+.. bpo: 41076
+.. date: 2020-06-22-13-22-30
+.. nonce: eWYw2N
+.. section: Core and Builtins
+
+Pre-feed the parser with the location of the f-string expression, not the
+f-string itself, which allows us to skip the shifting of the AST node
+locations after the parsing is completed.
+
+..
+
+.. bpo: 41056
+.. date: 2020-06-21-19-53-33
+.. nonce: IDu_EK
+.. section: Core and Builtins
+
+Fixes a reference to deallocated stack space during startup when
+constructing sys.path involving a relative symlink when code was supplied
+via -c. (discovered via Coverity)
+
+..
+
+.. bpo: 41061
+.. date: 2020-06-21-10-54-02
+.. nonce: AHf9MU
+.. section: Core and Builtins
+
+Fix incorrect expressions and asserts in hashtable code and tests.
+
+..
+
+.. bpo: 41052
+.. date: 2020-06-20-22-46-18
+.. nonce: 46MPeF
+.. section: Core and Builtins
+
+Opt out serialization/deserialization for _random.Random
+
+..
+
+.. bpo: 40939
+.. date: 2020-06-20-19-27-47
+.. nonce: jxJ4yn
+.. section: Core and Builtins
+
+Rename `PyPegen*` functions to `PyParser*`, so that we can remove the old
+set of `PyParser*` functions that were using the old parser, but keep
+everything backwards-compatible.
+
+..
+
+.. bpo: 35975
+.. date: 2020-06-20-17-00-44
+.. nonce: UDHCHp
+.. section: Core and Builtins
+
+Stefan Behnel reported that cf_feature_version is used even when
+PyCF_ONLY_AST is not set. This is against the intention and against the
+documented behavior, so it's been fixed.
+
+..
+
+.. bpo: 40939
+.. date: 2020-06-20-16-59-02
+.. nonce: 6810Ak
+.. section: Core and Builtins
+
+Remove the remaining files from the old parser and the :mod:`symbol` module.
+
+..
+
+.. bpo: 40077
+.. date: 2020-06-18-19-04-30
+.. nonce: _yI-ax
+.. section: Core and Builtins
+
+Convert :mod:`_bz2` to use :c:func:`PyType_FromSpec`.
+
+..
+
+.. bpo: 41006
+.. date: 2020-06-18-00-07-09
+.. nonce: H-wN-d
+.. section: Core and Builtins
+
+The ``encodings.latin_1`` module is no longer imported at startup. Now it is
+only imported when it is the filesystem encoding or the stdio encoding.
+
+..
+
+.. bpo: 40636
+.. date: 2020-06-17-10-27-17
+.. nonce: MYaCIe
+.. section: Core and Builtins
+
+:func:`zip` now supports :pep:`618`'s ``strict`` parameter, which raises a
+:exc:`ValueError` if the arguments are exhausted at different lengths. Patch
+by Brandt Bucher.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-06-17-00-52-21
+.. nonce: 61iyYh
+.. section: Core and Builtins
+
+Port :mod:`_gdbm` to multiphase initialization.
+
+..
+
+.. bpo: 40985
+.. date: 2020-06-15-16-29-55
+.. nonce: IIN_xX
+.. section: Core and Builtins
+
+Fix a bug that caused the :exc:`SyntaxError` text to be empty when a file
+ends with a line ending in a line continuation character (i.e. backslash).
+The error text should contain the text of the last line.
+
+..
+
+.. bpo: 40958
+.. date: 2020-06-15-01-20-44
+.. nonce: 7O2Wh1
+.. section: Core and Builtins
+
+Fix a possible buffer overflow in the PEG parser when gathering information
+for emitting syntax errors. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-06-12-22-56-17
+.. nonce: mmlp3Q
+.. section: Core and Builtins
+
+Port :mod:`_dbm` to multiphase initialization.
+
+..
+
+.. bpo: 40957
+.. date: 2020-06-12-12-21-54
+.. nonce: Z8n6I6
+.. section: Core and Builtins
+
+Fix refleak in _Py_fopen_obj() when PySys_Audit() fails
+
+..
+
+.. bpo: 40950
+.. date: 2020-06-12-00-12-28
+.. nonce: tzMy7m
+.. section: Core and Builtins
+
+Add a state to the :mod:`nis` module (:pep:`3121`) and apply the multiphase
+initialization. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 40947
+.. date: 2020-06-11-16-06-49
+.. nonce: 72cZcR
+.. section: Core and Builtins
+
+The Python :ref:`Path Configuration <init-path-config>` now takes
+:c:member:`PyConfig.platlibdir` in account.
+
+..
+
+.. bpo: 40939
+.. date: 2020-06-10-11-27-15
+.. nonce: DO-wAI
+.. section: Core and Builtins
+
+Remove the old parser, the :mod:`parser` module and all associated support
+code, command-line options and environment variables. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 40847
+.. date: 2020-06-09-23-52-32
+.. nonce: 4XAACw
+.. section: Core and Builtins
+
+Fix a bug where a line with only a line continuation character is not
+considered a blank line at tokenizer level. In such cases, more than a
+single `NEWLINE` token was emitted. The old parser was working around the
+issue, but the new parser threw a :exc:`SyntaxError` for valid input due to
+this. For example, an empty line following a line continuation character was
+interpreted as a :exc:`SyntaxError`.
+
+..
+
+.. bpo: 40890
+.. date: 2020-06-09-00-20-13
+.. nonce: LoRV-g
+.. section: Core and Builtins
+
+Each dictionary view now has a ``mapping`` attribute that provides a
+:class:`types.MappingProxyType` wrapping the original dictionary. Patch
+contributed by Dennis Sweeney.
+
+..
+
+.. bpo: 40889
+.. date: 2020-06-08-22-46-33
+.. nonce: vIBl-W
+.. section: Core and Builtins
+
+Improved the performance of symmetric difference operations on dictionary
+item views. Patch by Dennis Sweeney.
+
+..
+
+.. bpo: 40904
+.. date: 2020-06-08-01-08-57
+.. nonce: 76qQzo
+.. section: Core and Builtins
+
+Fix possible segfault in the new PEG parser when parsing f-string containing
+yield statements with no value (:code:`f"{yield}"`). Patch by Pablo Galindo
+
+..
+
+.. bpo: 40903
+.. date: 2020-06-07-22-50-10
+.. nonce: 7dWejS
+.. section: Core and Builtins
+
+Fixed a possible segfault in the new PEG parser when producing error
+messages for invalid assignments of the form :code:`p=p=`. Patch by Pablo
+Galindo
+
+..
+
+.. bpo: 40880
+.. date: 2020-06-06-00-23-19
+.. nonce: fjdzSh
+.. section: Core and Builtins
+
+Fix invalid memory read in the new parser when checking newlines in string
+literals. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 40883
+.. date: 2020-06-05-23-25-00
+.. nonce: M6sQ-Q
+.. section: Core and Builtins
+
+Fix memory leak in when parsing f-strings in the new parser. Patch by Pablo
+Galindo
+
+..
+
+.. bpo: 40870
+.. date: 2020-06-05-12-48-28
+.. nonce: 9cd2sk
+.. section: Core and Builtins
+
+Raise :exc:`ValueError` when validating custom AST's where the constants
+``True``, ``False`` and ``None`` are used within a :class:`ast.Name` node.
+
+..
+
+.. bpo: 40854
+.. date: 2020-06-03-13-53-24
+.. nonce: O6vfQU
+.. section: Core and Builtins
+
+Allow overriding :data:`sys.platlibdir` via a new :envvar:`PYTHONPLATLIBDIR`
+environment variable.
+
+..
+
+.. bpo: 40826
+.. date: 2020-06-01-20-31-07
+.. nonce: XCI4M2
+.. section: Core and Builtins
+
+Fix GIL usage in :c:func:`PyOS_Readline`: lock the GIL to set an exception
+and pass the Python thread state when checking if there is a pending signal.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-05-30-23-23-35
+.. nonce: 0D-laM
+.. section: Core and Builtins
+
+Port :mod:`fcntl` to multiphase initialization.
+
+..
+
+.. bpo: 19468
+.. date: 2020-05-30-23-18-35
+.. nonce: S-TA7p
+.. section: Core and Builtins
+
+Delete unnecessary instance check in importlib.reload(). Patch by Furkan
+Önder.
+
+..
+
+.. bpo: 40824
+.. date: 2020-05-30-14-37-18
+.. nonce: XR3V5s
+.. section: Core and Builtins
+
+Unexpected errors in calling the ``__iter__`` method are no longer masked by
+``TypeError`` in the :keyword:`in` operator and functions
+:func:`~operator.contains`, :func:`~operator.indexOf` and
+:func:`~operator.countOf` of the :mod:`operator` module.
+
+..
+
+.. bpo: 40792
+.. date: 2020-05-27-22-37-58
+.. nonce: WEDqqU
+.. section: Core and Builtins
+
+Attributes ``start``, ``stop`` and ``step`` of the :class:`range` object now
+always has exact type :class:`int`. Previously, they could have been an
+instance of a subclass of ``int``.
+
+..
+
+.. bpo: 40780
+.. date: 2020-05-26-17-43-58
+.. nonce: 3Ckdgm
+.. section: Core and Builtins
+
+Fix a corner case where g-style string formatting of a float failed to
+remove trailing zeros.
+
+..
+
+.. bpo: 38964
+.. date: 2020-05-25-21-49-11
+.. nonce: lrml90
+.. section: Core and Builtins
+
+When there's a :exc:`SyntaxError` in the expression part of an fstring, the
+filename attribute of the :exc:`SyntaxError` gets correctly set to the name
+of the file the fstring resides in.
+
+..
+
+.. bpo: 40750
+.. date: 2020-05-24-02-42-26
+.. nonce: ZmO9Ev
+.. section: Core and Builtins
+
+Support the "-d" debug flag in the new PEG parser. Patch by Pablo Galindo
+
+..
+
+.. bpo: 40217
+.. date: 2020-05-23-01-15-51
+.. nonce: jZsHTc
+.. section: Core and Builtins
+
+Instances of types created with :c:func:`PyType_FromSpecWithBases` will no
+longer automatically visit their class object when traversing references in
+the garbage collector. The user is expected to manually visit the object's
+class. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 39573
+.. date: 2020-05-22-00-34-34
+.. nonce: QO2QHj
+.. section: Core and Builtins
+
+:c:func:`Py_TYPE()` is changed to the inline static function. Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 40696
+.. date: 2020-05-21-01-54-00
+.. nonce: u3n8Wx
+.. section: Core and Builtins
+
+Fix a hang that can arise after :meth:`generator.throw` due to a cycle in
+the exception context chain.
+
+..
+
+.. bpo: 40521
+.. date: 2020-05-20-01-17-34
+.. nonce: wvAehI
+.. section: Core and Builtins
+
+Each interpreter now its has own free lists, singletons and caches:
+
+* Free lists: float, tuple, list, dict, frame, context,
+ asynchronous generator, MemoryError.
+* Singletons: empty tuple, empty bytes string, empty Unicode string,
+ single byte character, single Unicode (latin1) character.
+* Slice cache.
+
+They are no longer shared by all interpreters.
+
+..
+
+.. bpo: 40679
+.. date: 2020-05-19-19-39-49
+.. nonce: SVzz9p
+.. section: Core and Builtins
+
+Certain :exc:`TypeError` messages about missing or extra arguments now
+include the function's :term:`qualified name`. Patch by Dennis Sweeney.
+
+..
+
+.. bpo: 29590
+.. date: 2020-05-03-22-26-00
+.. nonce: aRz3l7
+.. section: Core and Builtins
+
+Make the stack trace correct after calling :meth:`generator.throw` on a
+generator that has yielded from a ``yield from``.
+
+..
+
+.. bpo: 4022
+.. date: 2020-04-11-13-07-49
+.. nonce: Ctpn_F
+.. section: Core and Builtins
+
+Improve performance of generators by not raising internal StopIteration.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-04-10-23-54-57
+.. nonce: ZURqoN
+.. section: Core and Builtins
+
+Port :mod:`mmap` to multiphase initialization.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-04-05-02-35-08
+.. nonce: Kfe9fT
+.. section: Core and Builtins
+
+Port :mod:`_lzma` to multiphase initialization.
+
+..
+
+.. bpo: 37999
+.. date: 2019-09-01-14-26-02
+.. nonce: XPl6dn
+.. section: Core and Builtins
+
+Builtin and extension functions that take integer arguments no longer accept
+:class:`~decimal.Decimal`\ s, :class:`~fractions.Fraction`\ s and other
+objects that can be converted to integers only with a loss (e.g. that have
+the :meth:`~object.__int__` method but do not have the
+:meth:`~object.__index__` method).
+
+..
+
+.. bpo: 29882
+.. date: 2019-06-02-11-29-15
+.. nonce: AkRzjb
+.. section: Core and Builtins
+
+Add :meth:`int.bit_count()`, counting the number of ones in the binary
+representation of an integer. Patch by Niklas Fiekas.
+
+..
+
+.. bpo: 36982
+.. date: 2019-05-25-05-27-39
+.. nonce: 0UHgfB
+.. section: Core and Builtins
+
+Use ncurses extended color functions when available to support terminals
+with 256 colors, and add the new function
+:func:`curses.has_extended_color_support` to indicate whether extended color
+support is provided by the underlying ncurses library.
+
+..
+
+.. bpo: 19569
+.. date: 2018-08-29-15-57-07
+.. nonce: RGu2Kb
+.. section: Core and Builtins
+
+Add the private macros ``_Py_COMP_DIAG_PUSH``,
+``_Py_COMP_DIAG_IGNORE_DEPR_DECLS``, and ``_Py_COMP_DIAG_POP``.
+
+..
+
+.. bpo: 26680
+.. date: 2018-03-15-11-51-36
+.. nonce: wOWYps
+.. section: Core and Builtins
+
+The int type now supports the x.is_integer() method for compatibility with
+float.
+
+..
+
+.. bpo: 41900
+.. date: 2020-10-01-10-50-12
+.. nonce: Cho7oh
+.. section: Library
+
+C14N 2.0 serialisation in xml.etree.ElementTree failed for unprefixed
+attributes when a default namespace was defined.
+
+..
+
+.. bpo: 41887
+.. date: 2020-09-30-23-49-42
+.. nonce: -ee2S-
+.. section: Library
+
+Strip leading spaces and tabs on :func:`ast.literal_eval`. Also document
+stripping of spaces and tabs for :func:`eval`.
+
+..
+
+.. bpo: 41773
+.. date: 2020-09-28-23-22-25
+.. nonce: oKkus0
+.. section: Library
+
+Note in documentation that :func:`random.choices` doesn't support non-finite
+weights, raise :exc:`ValueError` when given non-finite weights.
+
+..
+
+.. bpo: 41840
+.. date: 2020-09-23-23-17-59
+.. nonce: QRFr4L
+.. section: Library
+
+Fix a bug in the :mod:`symtable` module that was causing module-scope global
+variables to not be reported as both local and global. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 41842
+.. date: 2020-09-23-22-52-24
+.. nonce: lIuhC9
+.. section: Library
+
+Add :func:`codecs.unregister` function to unregister a codec search
+function.
+
+..
+
+.. bpo: 40564
+.. date: 2020-09-23-03-33-37
+.. nonce: iXQqMq
+.. section: Library
+
+In ``zipfile.Path``, mutate the passed ZipFile object type instead of making
+a copy. Prevents issues when both the local copy and the caller’s copy
+attempt to close the same file handle.
+
+..
+
+.. bpo: 40670
+.. date: 2020-09-22-14-55-34
+.. nonce: R5sm68
+.. section: Library
+
+More reliable validation of statements in :class:`timeit.Timer`. It now
+accepts "empty" statements (only whitespaces and comments) and rejects
+misindentent statements.
+
+..
+
+.. bpo: 41833
+.. date: 2020-09-22-13-51-14
+.. nonce: 6HVDjT
+.. section: Library
+
+The :class:`threading.Thread` constructor now uses the target name if the
+*target* argument is specified but the *name* argument is omitted.
+
+..
+
+.. bpo: 41817
+.. date: 2020-09-22-00-23-30
+.. nonce: bnh-VG
+.. section: Library
+
+fix `tkinter.EventType` Enum so all members are strings, and none are tuples
+
+..
+
+.. bpo: 41810
+.. date: 2020-09-20-15-14-05
+.. nonce: 7l8lyV
+.. section: Library
+
+:data:`types.EllipsisType`, :data:`types.NotImplementedType` and
+:data:`types.NoneType` have been reintroduced, providing a new set of types
+readily interpretable by static type checkers.
+
+..
+
+.. bpo: 41815
+.. date: 2020-09-19-23-14-54
+.. nonce: RNpuX3
+.. section: Library
+
+Fix SQLite3 segfault when backing up closed database. Patch contributed by
+Peter David McCormick.
+
+..
+
+.. bpo: 41816
+.. date: 2020-09-19-12-22-08
+.. nonce: ynynXJ
+.. section: Library
+
+StrEnum added: it ensures that all members are already strings or string
+candidates
+
+..
+
+.. bpo: 41517
+.. date: 2020-09-15-22-43-30
+.. nonce: sLBH7g
+.. section: Library
+
+fix bug allowing Enums to be extended via multiple inheritance
+
+..
+
+.. bpo: 39587
+.. date: 2020-09-15-14-56-13
+.. nonce: 69xzuh
+.. section: Library
+
+use the correct mix-in data type when constructing Enums
+
+..
+
+.. bpo: 41792
+.. date: 2020-09-15-07-55-35
+.. nonce: qMpSlU
+.. section: Library
+
+Add is_typeddict function to typing.py to check if a type is a TypedDict
+class
+
+Previously there was no way to check that without using private API. See the
+`relevant issue in python/typing
+<https://github.com/python/typing/issues/751>`
+
+..
+
+.. bpo: 41789
+.. date: 2020-09-14-19-27-46
+.. nonce: pI_uZQ
+.. section: Library
+
+Honor `object` overrides in `Enum` class creation (specifically, `__str__`,
+`__repr__`, `__format__`, and `__reduce_ex__`).
+
+..
+
+.. bpo: 32218
+.. date: 2020-09-12-16-18-42
+.. nonce: IpYkEe
+.. section: Library
+
+`enum.Flag` and `enum.IntFlag` members are now iterable
+
+..
+
+.. bpo: 39651
+.. date: 2020-09-11-12-38-55
+.. nonce: JMp9l2
+.. section: Library
+
+Fix a race condition in the ``call_soon_threadsafe()`` method of
+``asyncio.ProactorEventLoop``: do nothing if the self-pipe socket has been
+closed.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-08-13-55-34
+.. nonce: 56MLP-
+.. section: Library
+
+Port the ``mashal`` extension module to the multi-phase initialization API
+(:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-08-13-51-16
+.. nonce: wkPeoT
+.. section: Library
+
+Port the ``_string`` extension module to the multi-phase initialization API
+(:pep:`489`).
+
+..
+
+.. bpo: 41732
+.. date: 2020-09-06-20-27-10
+.. nonce: 1SKv26
+.. section: Library
+
+Added an :term:`iterator` to :class:`memoryview`.
+
+..
+
+.. bpo: 41720
+.. date: 2020-09-04-20-45-38
+.. nonce: PW9MzZ
+.. section: Library
+
+Fixed :meth:`turtle.Vec2D.__rmul__` for arguments which are not int or
+float.
+
+..
+
+.. bpo: 41696
+.. date: 2020-09-03-01-35-32
+.. nonce: zkYGre
+.. section: Library
+
+Fix handling of debug mode in :func:`asyncio.run`. This allows setting
+``PYTHONASYNCIODEBUG`` or ``-X dev`` to enable asyncio debug mode when using
+:func:`asyncio.run`.
+
+..
+
+.. bpo: 41687
+.. date: 2020-09-01-15-57-51
+.. nonce: m1b1KA
+.. section: Library
+
+Fix implementation of sendfile to be compatible with Solaris.
+
+..
+
+.. bpo: 41662
+.. date: 2020-08-30-21-38-57
+.. nonce: 6e9iZn
+.. section: Library
+
+No longer override exceptions raised in ``__len__()`` of a sequence of
+parameters in :mod:`sqlite3` with :exc:`~sqlite3.ProgrammingError`.
+
+..
+
+.. bpo: 39010
+.. date: 2020-08-30-10-24-26
+.. nonce: _mzXJW
+.. section: Library
+
+Restarting a ``ProactorEventLoop`` on Windows no longer logs spurious
+``ConnectionResetErrors``.
+
+..
+
+.. bpo: 41638
+.. date: 2020-08-29-16-45-12
+.. nonce: iZfW5N
+.. section: Library
+
+:exc:`~sqlite3.ProgrammingError` message for absent parameter in
+:mod:`sqlite3` contains now the name of the parameter instead of its index
+when parameters are supplied as a dict.
+
+..
+
+.. bpo: 41662
+.. date: 2020-08-29-16-07-36
+.. nonce: Mn79zh
+.. section: Library
+
+Fixed crash when mutate list of parameters during iteration in
+:mod:`sqlite3`.
+
+..
+
+.. bpo: 41513
+.. date: 2020-08-23-14-23-18
+.. nonce: DGqc_I
+.. section: Library
+
+Improved the accuracy of math.hypot(). Internally, each step is computed
+with extra precision so that the result is now almost always correctly
+rounded.
+
+..
+
+.. bpo: 41609
+.. date: 2020-08-21-15-51-15
+.. nonce: JmiUKG
+.. section: Library
+
+The pdb whatis command correctly reports instance methods as 'Method' rather
+than 'Function'.
+
+..
+
+.. bpo: 39994
+.. date: 2020-08-15-18-17-21
+.. nonce: dOgPOh
+.. section: Library
+
+Fixed pprint's handling of dict subclasses that override __repr__.
+
+..
+
+.. bpo: 32751
+.. date: 2020-08-15-15-50-12
+.. nonce: 85je5X
+.. section: Library
+
+When cancelling the task due to a timeout, :meth:`asyncio.wait_for` will now
+wait until the cancellation is complete also in the case when *timeout* is
+<= 0, like it does with positive timeouts.
+
+..
+
+.. bpo: 37658
+.. date: 2020-08-15-15-21-40
+.. nonce: f9nivB
+.. section: Library
+
+:meth:`asyncio.wait_for` now properly handles races between cancellation of
+itself and the completion of the wrapped awaitable.
+
+..
+
+.. bpo: 40782
+.. date: 2020-08-13-08-07-25
+.. nonce: aGZqmB
+.. section: Library
+
+Change the method asyncio.AbstractEventLoop.run_in_executor to not be a
+coroutine.
+
+..
+
+.. bpo: 41520
+.. date: 2020-08-12-13-25-16
+.. nonce: BEUWa4
+.. section: Library
+
+Fix :mod:`codeop` regression that prevented turning compile warnings into
+errors.
+
+..
+
+.. bpo: 41528
+.. date: 2020-08-12-07-43-31
+.. nonce: bu83oD
+.. section: Library
+
+turtle uses math module functions to convert degrees to radians and vice
+versa and to calculate vector norm
+
+..
+
+.. bpo: 41513
+.. date: 2020-08-09-18-16-05
+.. nonce: e6K6EK
+.. section: Library
+
+Minor algorithmic improvement to math.hypot() and math.dist() giving small
+gains in speed and accuracy.
+
+..
+
+.. bpo: 41503
+.. date: 2020-08-07-15-18-16
+.. nonce: IYftcu
+.. section: Library
+
+Fixed a race between setTarget and flush in logging.handlers.MemoryHandler.
+
+..
+
+.. bpo: 41497
+.. date: 2020-08-07-06-06-29
+.. nonce: aBtsWz
+.. section: Library
+
+Fix potential UnicodeDecodeError in dis module.
+
+..
+
+.. bpo: 41467
+.. date: 2020-08-04-00-20-30
+.. nonce: Z8DgTL
+.. section: Library
+
+On Windows, fix asyncio ``recv_into()`` return value when the socket/pipe is
+closed (:exc:`BrokenPipeError`): return ``0`` rather than an empty byte
+string (``b''``).
+
+..
+
+.. bpo: 41425
+.. date: 2020-08-03-01-59-48
+.. nonce: KJo6zF
+.. section: Library
+
+Make tkinter doc example runnable.
+
+..
+
+.. bpo: 41421
+.. date: 2020-08-01-00-51-15
+.. nonce: dHKRVB
+.. section: Library
+
+Make an algebraic simplification to random.paretovariate(). It now is
+slightly less subject to round-off error and is slightly faster. Inputs that
+used to cause ZeroDivisionError now cause an OverflowError instead.
+
+..
+
+.. bpo: 41440
+.. date: 2020-07-30-14-56-58
+.. nonce: rju34k
+.. section: Library
+
+Add :func:`os.cpu_count()` support for VxWorks RTOS.
+
+..
+
+.. bpo: 41316
+.. date: 2020-07-28-12-08-58
+.. nonce: bSCbK4
+.. section: Library
+
+Fix the :mod:`tarfile` module to write only basename of TAR file to GZIP
+compression header.
+
+..
+
+.. bpo: 41384
+.. date: 2020-07-26-21-18-43
+.. nonce: MlzIgV
+.. section: Library
+
+Raise TclError instead of TypeError when an unknown option is passed to
+tkinter.OptionMenu.
+
+..
+
+.. bpo: 41317
+.. date: 2020-07-23-01-18-34
+.. nonce: O17Z6x
+.. section: Library
+
+Use add_done_callback() in asyncio.loop.sock_accept() to unsubscribe reader
+early on cancellation.
+
+..
+
+.. bpo: 41364
+.. date: 2020-07-21-21-45-55
+.. nonce: 5O-k7A
+.. section: Library
+
+Reduce import overhead of :mod:`uuid`.
+
+..
+
+.. bpo: 35328
+.. date: 2020-07-21-16-20-55
+.. nonce: jXovHb
+.. section: Library
+
+Set the environment variable ``VIRTUAL_ENV_PROMPT`` at :mod:`venv`
+activation.
+
+..
+
+.. bpo: 41341
+.. date: 2020-07-20-19-13-17
+.. nonce: wqrj8C
+.. section: Library
+
+Recursive evaluation of `typing.ForwardRef` in `get_type_hints`.
+
+..
+
+.. bpo: 41344
+.. date: 2020-07-20-13-27-48
+.. nonce: iKipNd
+.. section: Library
+
+Prevent creating :class:`shared_memory.SharedMemory` objects with
+:code:`size=0`.
+
+..
+
+.. bpo: 41333
+.. date: 2020-07-18-18-07-40
+.. nonce: upkHIm
+.. section: Library
+
+:meth:`collections.OrderedDict.pop` is now 2 times faster.
+
+..
+
+.. bpo: 41288
+.. date: 2020-07-13-15-06-35
+.. nonce: 8mn5P-
+.. section: Library
+
+Unpickling invalid NEWOBJ_EX opcode with the C implementation raises now
+UnpicklingError instead of crashing.
+
+..
+
+.. bpo: 39017
+.. date: 2020-07-12-22-16-58
+.. nonce: x3Cg-9
+.. section: Library
+
+Avoid infinite loop when reading specially crafted TAR files using the
+tarfile module (CVE-2019-20907).
+
+..
+
+.. bpo: 41273
+.. date: 2020-07-11-00-15-01
+.. nonce: SVrsJh
+.. section: Library
+
+Speed up any transport using ``_ProactorReadPipeTransport`` by calling
+``recv_into`` instead of ``recv``, thus not creating a new buffer for each
+``recv`` call in the transport's read loop.
+
+..
+
+.. bpo: 41235
+.. date: 2020-07-07-21-56-26
+.. nonce: H2csMU
+.. section: Library
+
+Fix the error handling in :meth:`ssl.SSLContext.load_dh_params`.
+
+..
+
+.. bpo: 41207
+.. date: 2020-07-06-16-58-53
+.. nonce: Emw7Nk
+.. section: Library
+
+In distutils.spawn, restore expectation that DistutilsExecError is raised
+when the command is not found.
+
+..
+
+.. bpo: 29727
+.. date: 2020-07-05-19-16-02
+.. nonce: Q6Z2rg
+.. section: Library
+
+Register :class:`array.array` as a
+:class:`~collections.abc.MutableSequence`. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 39168
+.. date: 2020-07-04-21-56-46
+.. nonce: DQWsXj
+.. section: Library
+
+Remove the ``__new__`` method of :class:`typing.Generic`.
+
+..
+
+.. bpo: 41194
+.. date: 2020-07-03-13-15-08
+.. nonce: djrKjs
+.. section: Library
+
+Fix a crash in the ``_ast`` module: it can no longer be loaded more than
+once. It now uses a global state rather than a module state.
+
+..
+
+.. bpo: 41195
+.. date: 2020-07-02-15-03-04
+.. nonce: cEnpO3
+.. section: Library
+
+Add read-only ssl.SSLContext.security_level attribute to retrieve the
+context's security level.
+
+..
+
+.. bpo: 41193
+.. date: 2020-07-02-11-53-45
+.. nonce: 8-Tnql
+.. section: Library
+
+The ``write_history()`` atexit function of the readline completer now
+ignores any :exc:`OSError` to ignore error if the filesystem is read-only,
+instead of only ignoring :exc:`FileNotFoundError` and
+:exc:`PermissionError`.
+
+..
+
+.. bpo: 41182
+.. date: 2020-07-01-17-33-50
+.. nonce: FPFI0N
+.. section: Library
+
+selector: use DefaultSelector based upon implementation
+
+..
+
+.. bpo: 41161
+.. date: 2020-06-30-20-50-51
+.. nonce: QTdJjz
+.. section: Library
+
+The decimal module now requires libmpdec-2.5.0. Users of
+--with-system-libmpdec should update their system library.
+
+..
+
+.. bpo: 40874
+.. date: 2020-06-28-21-16-51
+.. nonce: YImvzA
+.. section: Library
+
+The decimal module now requires libmpdec-2.5.0.
+
+..
+
+.. bpo: 41138
+.. date: 2020-06-27-13-51-36
+.. nonce: bIpf7g
+.. section: Library
+
+Fixed the :mod:`trace` module CLI for Python source files with non-UTF-8
+encoding.
+
+..
+
+.. bpo: 31082
+.. date: 2020-06-25-10-11-47
+.. nonce: HsgDkx
+.. section: Library
+
+Use the term "iterable" in the docstring for :func:`functools.reduce`.
+
+..
+
+.. bpo: 40521
+.. date: 2020-06-23-06-09-59
+.. nonce: HUfxP7
+.. section: Library
+
+Remove freelist from collections.deque().
+
+..
+
+.. bpo: 31938
+.. date: 2020-06-22-20-08-40
+.. nonce: EVuko9
+.. section: Library
+
+Fix default-value signatures of several functions in the :mod:`select`
+module - by Anthony Sottile.
+
+..
+
+.. bpo: 41068
+.. date: 2020-06-22-10-25-39
+.. nonce: _bX2BW
+.. section: Library
+
+Fixed reading files with non-ASCII names from ZIP archive directly after
+writing them.
+
+..
+
+.. bpo: 41058
+.. date: 2020-06-20-21-03-55
+.. nonce: gztdZy
+.. section: Library
+
+:func:`pdb.find_function` now correctly determines the source file encoding.
+
+..
+
+.. bpo: 41056
+.. date: 2020-06-20-18-37-29
+.. nonce: d9v_uL
+.. section: Library
+
+Invalid file descriptor values are now prevented from being passed to
+os.fpathconf. (discovered by Coverity)
+
+..
+
+.. bpo: 41056
+.. date: 2020-06-20-18-35-43
+.. nonce: Garcle
+.. section: Library
+
+Fix a NULL pointer dereference within the ssl module during a MemoryError in
+the keylog callback. (discovered by Coverity)
+
+..
+
+.. bpo: 41056
+.. date: 2020-06-20-18-33-03
+.. nonce: gTH4Bq
+.. section: Library
+
+Fixed an instance where a MemoryError within the zoneinfo module might not
+be reported or not reported at its source. (found by Coverity)
+
+..
+
+.. bpo: 41048
+.. date: 2020-06-20-10-16-57
+.. nonce: hEXB-B
+.. section: Library
+
+:func:`mimetypes.read_mime_types` function reads the rule file using UTF-8
+encoding, not the locale encoding. Patch by Srinivas Reddy Thatiparthy.
+
+..
+
+.. bpo: 41043
+.. date: 2020-06-20-00-19-30
+.. nonce: p-Pk-H
+.. section: Library
+
+Fixed the use of :func:`~glob.glob` in the stdlib: literal part of the path
+is now always correctly escaped.
+
+..
+
+.. bpo: 41025
+.. date: 2020-06-18-10-34-59
+.. nonce: elf_nz
+.. section: Library
+
+Fixed an issue preventing the C implementation of :class:`zoneinfo.ZoneInfo`
+from being subclassed.
+
+..
+
+.. bpo: 35018
+.. date: 2020-06-17-23-49-45
+.. nonce: NP5_Qk
+.. section: Library
+
+Add the :class:`xml.sax.handler.LexicalHandler` class that is present in
+other SAX XML implementations.
+
+..
+
+.. bpo: 41002
+.. date: 2020-06-17-17-26-24
+.. nonce: NPBItE
+.. section: Library
+
+Improve performance of HTTPResponse.read with a given amount. Patch by Bruce
+Merry.
+
+..
+
+.. bpo: 40448
+.. date: 2020-06-15-12-22-53
+.. nonce: 1dk8Bu
+.. section: Library
+
+:mod:`ensurepip` now disables the use of `pip` cache when installing the
+bundled versions of `pip` and `setuptools`. Patch by Krzysztof Konopko.
+
+..
+
+.. bpo: 40967
+.. date: 2020-06-15-00-13-57
+.. nonce: _dx3OO
+.. section: Library
+
+Removed :meth:`asyncio.Task.current_task` and
+:meth:`asyncio.Task.all_tasks`. Patch contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 40924
+.. date: 2020-06-13-12-04-50
+.. nonce: SM_luS
+.. section: Library
+
+Ensure ``importlib.resources.path`` returns an extant path for the
+SourceFileLoader's resource reader. Avoids the regression identified in
+master while a long-term solution is devised.
+
+..
+
+.. bpo: 40955
+.. date: 2020-06-12-11-55-30
+.. nonce: huixCg
+.. section: Library
+
+Fix a minor memory leak in :mod:`subprocess` module when extra_groups was
+specified.
+
+..
+
+.. bpo: 40855
+.. date: 2020-06-12-10-44-15
+.. nonce: jSot83
+.. section: Library
+
+The standard deviation and variance functions in the statistics module were
+ignoring their mu and xbar arguments.
+
+..
+
+.. bpo: 40939
+.. date: 2020-06-11-11-07-10
+.. nonce: -D5Asl
+.. section: Library
+
+Use the new PEG parser when generating the stdlib :mod:`keyword` module.
+
+..
+
+.. bpo: 23427
+.. date: 2020-06-08-18-59-16
+.. nonce: ilg1Cz
+.. section: Library
+
+Add :data:`sys.orig_argv` attribute: the list of the original command line
+arguments passed to the Python executable.
+
+..
+
+.. bpo: 33689
+.. date: 2020-06-06-14-09-55
+.. nonce: EFUDH7
+.. section: Library
+
+Ignore empty or whitespace-only lines in .pth files. This matches the
+documentated behavior. Before, empty lines caused the site-packages dir to
+appear multiple times in sys.path. By Ido Michael, contributors Malcolm
+Smith and Tal Einat.
+
+..
+
+.. bpo: 40884
+.. date: 2020-06-06-02-42-26
+.. nonce: n7fOwS
+.. section: Library
+
+Added a `defaults` parameter to :class:`logging.Formatter`, to allow
+specifying default values for custom fields. Patch by Asaf Alon and Bar
+Harel.
+
+..
+
+.. bpo: 40876
+.. date: 2020-06-05-20-00-18
+.. nonce: zDhiZj
+.. section: Library
+
+Clarify error message in the :mod:`csv` module.
+
+..
+
+.. bpo: 39791
+.. date: 2020-06-05-19-29-10
+.. nonce: _CcO3d
+.. section: Library
+
+Refresh importlib.metadata from importlib_metadata 1.6.1.
+
+..
+
+.. bpo: 40807
+.. date: 2020-06-04-16-25-15
+.. nonce: yYyLWx
+.. section: Library
+
+Stop codeop._maybe_compile, used by code.InteractiveInterpreter (and IDLE).
+from emitting each warning three times.
+
+..
+
+.. bpo: 32604
+.. date: 2020-06-02-23-49-07
+.. nonce: ZN4V4l
+.. section: Library
+
+Fix reference leak in the :mod:`select` module when the module is imported
+in a subinterpreter.
+
+..
+
+.. bpo: 39791
+.. date: 2020-06-02-02-16-02
+.. nonce: StCJlA
+.. section: Library
+
+Built-in loaders (SourceFileLoader and ZipImporter) now supply
+``TraversableResources`` implementations for ``ResourceReader``, and the
+fallback function has been removed.
+
+..
+
+.. bpo: 39314
+.. date: 2020-06-01-02-16-29
+.. nonce: 0T9hlA
+.. section: Library
+
+:class:`rlcompleter.Completer` and the standard Python shell now close the
+parenthesis for functions that take no arguments. Patch contributed by Rémi
+Lapeyre.
+
+..
+
+.. bpo: 17005
+.. date: 2020-05-31-23-32-36
+.. nonce: JlRUGB
+.. section: Library
+
+The topological sort functionality that was introduced initially in the
+:mod:`functools` module has been moved to a new :mod:`graphlib` module to
+better accommodate the new tools and keep the original scope of the
+:mod:`functools` module. Patch by Pablo Galindo
+
+..
+
+.. bpo: 40834
+.. date: 2020-05-31-15-52-18
+.. nonce: MO9_hb
+.. section: Library
+
+Fix truncate when sending str object with_xxsubinterpreters.channel_send.
+
+..
+
+.. bpo: 40755
+.. date: 2020-05-30-18-48-58
+.. nonce: IyOe2J
+.. section: Library
+
+Add rich comparisons to collections.Counter().
+
+..
+
+.. bpo: 26407
+.. date: 2020-05-30-14-19-47
+.. nonce: MjWLO1
+.. section: Library
+
+Unexpected errors in calling the ``__iter__`` method are no longer masked by
+``TypeError`` in :func:`csv.reader`, :func:`csv.writer.writerow` and
+:meth:`csv.writer.writerows`.
+
+..
+
+.. bpo: 39384
+.. date: 2020-05-30-12-44-29
+.. nonce: Iqxy3q
+.. section: Library
+
+Fixed email.contentmanager to allow set_content() to set a null string.
+
+..
+
+.. bpo: 40744
+.. date: 2020-05-30-08-10-23
+.. nonce: jKURVV
+.. section: Library
+
+The :mod:`sqlite3` module uses SQLite API functions that require SQLite
+v3.7.3 or higher. This patch removes support for older SQLite versions, and
+explicitly requires SQLite 3.7.3 both at build, compile and runtime. Patch
+by Sergey Fedoseev and Erlend E. Aasland.
+
+..
+
+.. bpo: 40777
+.. date: 2020-05-28-17-32-29
+.. nonce: 1kJU6N
+.. section: Library
+
+Initialize PyDateTime_IsoCalendarDateType.tp_base at run-time to avoid
+errors on some compilers.
+
+..
+
+.. bpo: 38488
+.. date: 2020-05-28-16-51-00
+.. nonce: hFQNgA
+.. section: Library
+
+Update ensurepip to install pip 20.1.1 and setuptools 47.1.0.
+
+..
+
+.. bpo: 40792
+.. date: 2020-05-27-22-19-42
+.. nonce: 87Yx01
+.. section: Library
+
+The result of :func:`operator.index` now always has exact type :class:`int`.
+Previously, the result could have been an instance of a subclass of ``int``.
+
+..
+
+.. bpo: 40767
+.. date: 2020-05-27-21-27-01
+.. nonce: L5MnVV
+.. section: Library
+
+:mod:`webbrowser` now properly finds the default browser in pure Wayland
+systems by checking the WAYLAND_DISPLAY environment variable. Patch
+contributed by Jérémy Attali.
+
+..
+
+.. bpo: 40791
+.. date: 2020-05-27-18-04-52
+.. nonce: IzpNor
+.. section: Library
+
+:func:`hashlib.compare_digest` uses OpenSSL's ``CRYPTO_memcmp()`` function
+when OpenSSL is available.
+
+..
+
+.. bpo: 40795
+.. date: 2020-05-27-17-00-18
+.. nonce: eZSnHA
+.. section: Library
+
+:mod:`ctypes` module: If ctypes fails to convert the result of a callback or
+if a ctypes callback function raises an exception, sys.unraisablehook is now
+called with an exception set. Previously, the error was logged into stderr
+by :c:func:`PyErr_Print`.
+
+..
+
+.. bpo: 16995
+.. date: 2020-05-27-00-09-52
+.. nonce: 4niOT7
+.. section: Library
+
+Add :func:`base64.b32hexencode` and :func:`base64.b32hexdecode` to support
+the Base32 Encoding with Extended Hex Alphabet.
+
+..
+
+.. bpo: 30008
+.. date: 2020-05-25-22-18-38
+.. nonce: CKC3td
+.. section: Library
+
+Fix :mod:`ssl` code to be compatible with OpenSSL 1.1.x builds that use
+``no-deprecated`` and ``--api=1.1.0``.
+
+..
+
+.. bpo: 30064
+.. date: 2020-05-25-11-52-23
+.. nonce: 6CICsH
+.. section: Library
+
+Fix asyncio ``loop.sock_*`` race condition issue
+
+..
+
+.. bpo: 40759
+.. date: 2020-05-24-23-52-35
+.. nonce: DdZdaw
+.. section: Library
+
+Deprecate the :mod:`symbol` module.
+
+..
+
+.. bpo: 40756
+.. date: 2020-05-24-11-06-37
+.. nonce: 7ZH83z
+.. section: Library
+
+The second argument (extra) of ``LoggerAdapter.__init__`` now defaults to
+None.
+
+..
+
+.. bpo: 37129
+.. date: 2020-05-23-04-18-00
+.. nonce: YoYoYo
+.. section: Library
+
+Add a new :data:`os.RWF_APPEND` flag for :func:`os.pwritev`.
+
+..
+
+.. bpo: 40737
+.. date: 2020-05-23-00-22-11
+.. nonce: iph-CM
+.. section: Library
+
+Fix possible reference leak for :mod:`sqlite3` initialization.
+
+..
+
+.. bpo: 40726
+.. date: 2020-05-22-12-45-58
+.. nonce: 7oBdMw
+.. section: Library
+
+Handle cases where the ``end_lineno`` is ``None`` on
+:func:`ast.increment_lineno`.
+
+..
+
+.. bpo: 40698
+.. date: 2020-05-20-14-38-04
+.. nonce: zwl5Hc
+.. section: Library
+
+:mod:`distutils` upload creates SHA2-256 and Blake2b-256 digests. MD5
+digests is skipped if platform blocks MD5.
+
+..
+
+.. bpo: 40695
+.. date: 2020-05-20-13-03-28
+.. nonce: lr4aIS
+.. section: Library
+
+:mod:`hashlib` no longer falls back to builtin hash implementations when
+OpenSSL provides a hash digest and the algorithm is blocked by security
+policy.
+
+..
+
+.. bpo: 9216
+.. date: 2020-05-20-12-53-20
+.. nonce: ps7Yf1
+.. section: Library
+
+func:`hashlib.new` passed ``usedforsecurity`` to OpenSSL EVP constructor
+``_hashlib.new()``. test_hashlib and test_smtplib handle strict security
+policy better.
+
+..
+
+.. bpo: 40614
+.. date: 2020-05-18-22-41-02
+.. nonce: 8j3kmq
+.. section: Library
+
+:func:`ast.parse` will not parse self documenting expressions in f-strings
+when passed ``feature_version`` is less than ``(3, 8)``.
+
+..
+
+.. bpo: 40626
+.. date: 2020-05-18-17-29-30
+.. nonce: NeZufF
+.. section: Library
+
+Add h5 file extension as MIME Type application/x-hdf5, as per HDF Group
+recommendation for HDF5 formatted data files. Patch contributed by Mark
+Schwab.
+
+..
+
+.. bpo: 25920
+.. date: 2020-05-18-15-38-25
+.. nonce: PxrLY8
+.. section: Library
+
+On macOS, when building Python for macOS 10.4 and older, which wasn't the
+case for python.org macOS installer, :func:`socket.getaddrinfo` no longer
+uses an internal lock to prevent race conditions when calling
+``getaddrinfo()`` which is thread-safe since macOS 10.5. Python 3.9 requires
+macOS 10.6 or newer. The internal lock caused random hang on fork when
+another thread was calling :func:`socket.getaddrinfo`. The lock was also
+used on FreeBSD older than 5.3, OpenBSD older than 201311 and NetBSD older
+than 4.
+
+..
+
+.. bpo: 40671
+.. date: 2020-05-18-15-26-31
+.. nonce: NeZ9Cy
+.. section: Library
+
+Prepare ``_hashlib`` for :pep:`489` and use :c:func:`PyModule_AddType`.
+
+..
+
+.. bpo: 32309
+.. date: 2020-05-17-02-03-09
+.. nonce: KM9psl
+.. section: Library
+
+Added a new :term:`coroutine` :func:`asyncio.to_thread`. It is mainly used
+for running IO-bound functions in a separate thread to avoid blocking the
+event loop, and essentially works as a high-level version of
+:meth:`~asyncio.loop.run_in_executor` that can directly take keyword
+arguments.
+
+..
+
+.. bpo: 36543
+.. date: 2020-05-15-21-14-45
+.. nonce: Jt-eSX
+.. section: Library
+
+Restored the deprecated :mod:`xml.etree.cElementTree` module.
+
+..
+
+.. bpo: 40611
+.. date: 2020-05-13-16-28-33
+.. nonce: ZCk0_c
+.. section: Library
+
+:data:`~mmap.MAP_POPULATE` constant has now been added to the list of
+exported :mod:`mmap` module flags.
+
+..
+
+.. bpo: 39881
+.. date: 2020-05-07-22-00-12
+.. nonce: E1xsNv
+.. section: Library
+
+PEP 554 for use in the test suite. (Patch By Joannah Nanjekye)
+
+..
+
+.. bpo: 13097
+.. date: 2020-05-06-02-01-25
+.. nonce: Wh5xSK
+.. section: Library
+
+``ctypes`` now raises an ``ArgumentError`` when a callback is invoked with
+more than 1024 arguments.
+
+..
+
+.. bpo: 39385
+.. date: 2020-04-23-18-21-19
+.. nonce: MIAyS7
+.. section: Library
+
+A new test assertion context-manager, :func:`unittest.assertNoLogs` will
+ensure a given block of code emits no log messages using the logging module.
+Contributed by Kit Yan Choi.
+
+..
+
+.. bpo: 23082
+.. date: 2020-04-20-22-08-36
+.. nonce: iX90Id
+.. section: Library
+
+Updated the error message and docs of PurePath.relative_to() to better
+reflect the function behaviour.
+
+..
+
+.. bpo: 40318
+.. date: 2020-04-18-14-16-02
+.. nonce: K2UdRx
+.. section: Library
+
+Use SQLite3 trace v2 API, if it is available.
+
+..
+
+.. bpo: 40105
+.. date: 2020-04-03-16-13-59
+.. nonce: hfM2c0
+.. section: Library
+
+ZipFile truncates files to avoid corruption when a shorter comment is
+provided in append ("a") mode. Patch by Jan Mazur.
+
+..
+
+.. bpo: 40084
+.. date: 2020-03-29-21-32-00
+.. nonce: MCYwcv
+.. section: Library
+
+Fix ``Enum.__dir__``: dir(Enum.member) now includes attributes as well as
+methods.
+
+..
+
+.. bpo: 31122
+.. date: 2020-03-11-07-44-06
+.. nonce: zIQ80l
+.. section: Library
+
+ssl.wrap_socket() now raises ssl.SSLEOFError rather than OSError when peer
+closes connection during TLS negotiation
+
+..
+
+.. bpo: 39728
+.. date: 2020-02-24-10-58-34
+.. nonce: kOOaHn
+.. section: Library
+
+fix default `_missing_` so a duplicate `ValueError` is not set as the
+`__context__` of the original `ValueError`
+
+..
+
+.. bpo: 39244
+.. date: 2020-02-23-15-09-47
+.. nonce: aBK5IM
+.. section: Library
+
+Fixed :class:`multiprocessing.context.get_all_start_methods` to properly
+return the default method first on macOS.
+
+..
+
+.. bpo: 39040
+.. date: 2019-12-15-18-47-20
+.. nonce: tKa0Qs
+.. section: Library
+
+Fix parsing of invalid mime headers parameters by collapsing whitespace
+between encoded words in a bare-quote-string.
+
+..
+
+.. bpo: 38731
+.. date: 2019-11-13-07-37-11
+.. nonce: 9qmcSx
+.. section: Library
+
+Add ``--quiet`` option to command-line interface of :mod:`py_compile`. Patch
+by Gregory Schevchenko.
+
+..
+
+.. bpo: 35714
+.. date: 2019-10-25-23-45-49
+.. nonce: fw3xb7
+.. section: Library
+
+:exc:`struct.error` is now raised if there is a null character in a
+:mod:`struct` format string.
+
+..
+
+.. bpo: 38144
+.. date: 2019-09-12-21-34-03
+.. nonce: 8uQCdd
+.. section: Library
+
+Added the *root_dir* and *dir_fd* parameters in :func:`glob.glob`.
+
+..
+
+.. bpo: 26543
+.. date: 2019-08-11-16-28-03
+.. nonce: X-TJZO
+.. section: Library
+
+Fix :meth:`IMAP4.noop()` when debug mode is enabled (ex: ``imaplib.Debug =
+3``).
+
+..
+
+.. bpo: 12178
+.. date: 2019-05-31-23-54-28
+.. nonce: N6FLCZ
+.. section: Library
+
+:func:`csv.writer` now correctly escapes *escapechar* when input contains
+*escapechar*. Patch by Catalin Iacob, Berker Peksag, and Itay Elbirt.
+
+..
+
+.. bpo: 36290
+.. date: 2019-03-17-19-01-53
+.. nonce: 7VXo_K
+.. section: Library
+
+AST nodes are now raising :exc:`TypeError` on conflicting keyword arguments.
+Patch contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 33944
+.. date: 2019-03-01-01-56-23
+.. nonce: -82Pkt
+.. section: Library
+
+Added site.py site-packages tracing in verbose mode.
+
+..
+
+.. bpo: 35078
+.. date: 2018-10-27-09-37-03
+.. nonce: kweA3R
+.. section: Library
+
+Refactor formatweekday, formatmonthname methods in LocaleHTMLCalendar and
+LocaleTextCalendar classes in calendar module to call the base class
+methods.This enables customizable CSS classes for LocaleHTMLCalendar. Patch
+by Srinivas Reddy Thatiparthy
+
+..
+
+.. bpo: 29620
+.. date: 2018-08-21-16-20-33
+.. nonce: xxx666
+.. section: Library
+
+:func:`~unittest.TestCase.assertWarns` no longer raises a
+``RuntimeException`` when accessing a module's ``__warningregistry__``
+causes importation of a new module, or when a new module is imported in
+another thread. Patch by Kernc.
+
+..
+
+.. bpo: 31844
+.. date: 2018-07-30-12-48-17
+.. nonce: 0_GKsD
+.. section: Library
+
+Remove ``ParserBase.error()`` method from the private and undocumented
+``_markupbase`` module. :class:`html.parser.HTMLParser` is the only
+subclass of ``ParserBase`` and its ``error()`` implementation was deprecated
+in Python 3.4 and removed in Python 3.5.
+
+..
+
+.. bpo: 34226
+.. date: 2018-07-29-12-14-54
+.. nonce: BE7zbu
+.. section: Library
+
+Fix `cgi.parse_multipart` without content_length. Patch by Roger Duran
+
+..
+
+.. bpo: 33660
+.. date: 2018-06-12-23-30-41
+.. nonce: AdDn5Z
+.. section: Library
+
+Fix pathlib.PosixPath to resolve a relative path located on the root
+directory properly.
+
+..
+
+.. bpo: 28557
+.. date: 2018-06-07-22-04-01
+.. nonce: ViNJnK
+.. section: Library
+
+Improve the error message for a misbehaving ``rawio.readinto``
+
+..
+
+.. bpo: 26680
+.. date: 2018-03-15-11-56-48
+.. nonce: Udkhn4
+.. section: Library
+
+The d.is_integer() method is added to the Decimal type, for compatibility
+with other number types.
+
+..
+
+.. bpo: 26680
+.. date: 2018-03-15-11-55-04
+.. nonce: eKAi85
+.. section: Library
+
+The x.is_integer() method is incorporated into the abstract types of the
+numeric tower, Real, Rational and Integral, with appropriate default
+implementations.
+
+..
+
+.. bpo: 41428
+.. date: 2020-10-03-18-20-46
+.. nonce: _ju1NE
+.. section: Documentation
+
+Add documentation for :pep:`604` (Allow writing union types as ``X | Y``).
+
+..
+
+.. bpo: 41774
+.. date: 2020-09-24-15-35-13
+.. nonce: 5IqdGP
+.. section: Documentation
+
+In Programming FAQ "Sequences (Tuples/Lists)" section, add "How do you
+remove multiple items from a list".
+
+..
+
+.. bpo: 35293
+.. date: 2020-09-12-17-37-13
+.. nonce: _cOwPD
+.. section: Documentation
+
+Fix RemovedInSphinx40Warning when building the documentation. Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 37149
+.. date: 2020-09-10-07-48-02
+.. nonce: VD0rCv
+.. section: Documentation
+
+Change Shipman tkinter doc link from archive.org to TkDocs. (The doc has
+been removed from the NMT server.) The new link responds much faster and
+includes a short explanatory note.
+
+..
+
+.. bpo: 41726
+.. date: 2020-09-08-16-57-09
+.. nonce: g0UXrn
+.. section: Documentation
+
+Update the refcounts info of ``PyType_FromModuleAndSpec``.
+
+..
+
+.. bpo: 41624
+.. date: 2020-08-25-15-11-23
+.. nonce: ddjJlN
+.. section: Documentation
+
+Fix the signature of :class:`typing.Coroutine`.
+
+..
+
+.. bpo: 40204
+.. date: 2020-08-12-18-35-40
+.. nonce: C8A_pe
+.. section: Documentation
+
+Enable Sphinx 3.2 ``c_allow_pre_v3`` option and disable
+``c_warn_on_allowed_pre_v3`` option to make the documentation compatible
+with Sphinx 2 and Sphinx 3.
+
+..
+
+.. bpo: 41045
+.. date: 2020-07-27-20-46-17
+.. nonce: GFF6Ul
+.. section: Documentation
+
+Add documentation for debug feature of f-strings.
+
+..
+
+.. bpo: 41314
+.. date: 2020-07-25-14-20-00
+.. nonce: yrjko0
+.. section: Documentation
+
+Changed the release when ``from __future__ import annotations`` becomes the
+default from ``4.0`` to ``3.10`` (following a change in PEP 563).
+
+..
+
+.. bpo: 40979
+.. date: 2020-07-21-15-23-30
+.. nonce: pLA8rO
+.. section: Documentation
+
+Refactored typing.rst, arranging more than 70 classes, functions, and
+decorators into new sub-sections.
+
+..
+
+.. bpo: 40552
+.. date: 2020-05-09-12-10-31
+.. nonce: _0uB73
+.. section: Documentation
+
+Fix in tutorial section 4.2. Code snippet is now correct.
+
+..
+
+.. bpo: 39883
+.. date: 2020-03-07-03-53-39
+.. nonce: 1tnb4-
+.. section: Documentation
+
+Make code, examples, and recipes in the Python documentation be licensed
+under the more permissive BSD0 license in addition to the existing Python
+2.0 license.
+
+..
+
+.. bpo: 37703
+.. date: 2019-08-16-20-25-42
+.. nonce: Qm_l_H
+.. section: Documentation
+
+Updated Documentation to comprehensively elaborate on the behaviour of
+gather.cancel()
+
+..
+
+.. bpo: 41939
+.. date: 2020-10-05-09-37-43
+.. nonce: P4OlbA
+.. section: Tests
+
+Fix test_site.test_license_exists_at_url(): call
+``urllib.request.urlcleanup()`` to reset the global
+``urllib.request._opener``. Patch by Victor Stinner.
+
+..
+
+.. bpo: 41731
+.. date: 2020-09-11-19-12-31
+.. nonce: Ivxh4U
+.. section: Tests
+
+Make test_cmd_line_script pass with option '-vv'.
+
+..
+
+.. bpo: 41602
+.. date: 2020-08-25-19-25-36
+.. nonce: Z64s0I
+.. section: Tests
+
+Add tests for SIGINT handling in the runpy module.
+
+..
+
+.. bpo: 41521
+.. date: 2020-08-11-14-59-13
+.. nonce: w2UYK7
+.. section: Tests
+
+:mod:`test.support`: Rename ``blacklist`` parameter of
+:func:`~test.support.check__all__` to ``not_exported``.
+
+..
+
+.. bpo: 41477
+.. date: 2020-08-07-17-28-49
+.. nonce: GrFexU
+.. section: Tests
+
+Make ctypes optional in test_genericalias.
+
+..
+
+.. bpo: 41085
+.. date: 2020-06-23-12-02-45
+.. nonce: JZKsyz
+.. section: Tests
+
+Fix integer overflow in the :meth:`array.array.index` method on 64-bit
+Windows for index larger than ``2**31``.
+
+..
+
+.. bpo: 41069
+.. date: 2020-06-22-00-21-12
+.. nonce: bLZkX-
+.. section: Tests
+
+:data:`test.support.TESTFN` and the current directory for tests when run via
+``test.regrtest`` contain now non-ascii characters if possible.
+
+..
+
+.. bpo: 38377
+.. date: 2020-06-17-18-00-21
+.. nonce: jfg4TH
+.. section: Tests
+
+On Linux, skip tests using multiprocessing if the current user cannot create
+a file in ``/dev/shm/`` directory. Add the
+:func:`~test.support.skip_if_broken_multiprocessing_synchronize` function to
+the :mod:`test.support` module.
+
+..
+
+.. bpo: 41009
+.. date: 2020-06-17-17-27-07
+.. nonce: Rvn6OQ
+.. section: Tests
+
+Fix use of ``support.require_{linux|mac|freebsd}_version()`` decorators as
+class decorator.
+
+..
+
+.. bpo: 41003
+.. date: 2020-06-17-15-07-14
+.. nonce: tiH_Fy
+.. section: Tests
+
+Fix ``test_copyreg`` when ``numpy`` is installed: ``test.pickletester`` now
+saves/restores warnings filters when importing ``numpy``, to ignore filters
+installed by ``numpy``.
+
+..
+
+.. bpo: 40964
+.. date: 2020-06-12-20-46-23
+.. nonce: OBzf2c
+.. section: Tests
+
+Disable remote :mod:`imaplib` tests, host cyrus.andrew.cmu.edu is blocking
+incoming connections.
+
+..
+
+.. bpo: 40927
+.. date: 2020-06-09-18-48-18
+.. nonce: 67ylLg
+.. section: Tests
+
+Fix test_binhex when run twice: it now uses import_fresh_module() to ensure
+that it raises DeprecationWarning each time.
+
+..
+
+.. bpo: 17258
+.. date: 2020-05-26-07-53-31
+.. nonce: X_IKTQ
+.. section: Tests
+
+Skip some :mod:`multiprocessing` tests when MD5 hash digest is blocked.
+
+..
+
+.. bpo: 31904
+.. date: 2020-04-09-15-40-03
+.. nonce: TJ4k3d
+.. section: Tests
+
+Increase LOOPBACK_TIMEOUT to 10 for VxWorks RTOS.
+
+..
+
+.. bpo: 38169
+.. date: 2019-09-14-13-20-27
+.. nonce: hurq4B
+.. section: Tests
+
+Increase code coverage for SharedMemory and ShareableList
+
+..
+
+.. bpo: 34401
+.. date: 2018-08-20-09-38-52
+.. nonce: eGxMPm
+.. section: Tests
+
+Make test_gdb properly run on HP-UX. Patch by Michael Osipov.
+
+..
+
+.. bpo: 38249
+.. date: 2020-09-28-21-56-51
+.. nonce: uzMCaZ
+.. section: Build
+
+Update :c:macro:`Py_UNREACHABLE` to use __builtin_unreachable() if only the
+compiler is able to use it. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 41617
+.. date: 2020-08-24-18-34-01
+.. nonce: sKKXz7
+.. section: Build
+
+Fix ``pycore_bitutils.h`` header file to support old clang versions:
+``__builtin_bswap16()`` is not available in LLVM clang 3.0.
+
+..
+
+.. bpo: 40204
+.. date: 2020-06-25-06-59-13
+.. nonce: GpD04D
+.. section: Build
+
+Pin Sphinx version to 2.3.1 in ``Doc/Makefile``.
+
+..
+
+.. bpo: 36020
+.. date: 2020-06-15-22-14-25
+.. nonce: wbiv0P
+.. section: Build
+
+The C99 functions :c:func:`snprintf` and :c:func:`vsnprintf` are now
+required to build Python.
+
+..
+
+.. bpo: 40684
+.. date: 2020-06-08-19-57-05
+.. nonce: WIY2-i
+.. section: Build
+
+``make install`` now uses the ``PLATLIBDIR`` variable for the destination
+``lib-dynload/`` directory when ``./configure --with-platlibdir`` is used.
+
+..
+
+.. bpo: 40683
+.. date: 2020-05-19-10-54-08
+.. nonce: W8JHrr
+.. section: Build
+
+Fixed an issue where the :mod:`zoneinfo` module and its tests were not
+included when Python is installed with ``make``.
+
+..
+
+.. bpo: 41744
+.. date: 2020-09-11-17-59-33
+.. nonce: e_ugDQ
+.. section: Windows
+
+Fixes automatic import of props file when using the Nuget package.
+
+..
+
+.. bpo: 41627
+.. date: 2020-09-04-21-35-28
+.. nonce: sx2KN1
+.. section: Windows
+
+The user site directory for 32-bit now includes a ``-32`` suffix to
+distinguish it from the 64-bit interpreter's directory.
+
+..
+
+.. bpo: 41526
+.. date: 2020-08-13-22-40-58
+.. nonce: -i2bwb
+.. section: Windows
+
+Fixed layout of final page of the installer by removing the special thanks
+to Mark Hammond (with his permission).
+
+..
+
+.. bpo: 41492
+.. date: 2020-08-06-16-59-10
+.. nonce: 2FQ9cM
+.. section: Windows
+
+Fixes the description that appears in UAC prompts.
+
+..
+
+.. bpo: 40948
+.. date: 2020-07-28-12-39-32
+.. nonce: ISUFO6
+.. section: Windows
+
+Improve post-install message to direct people to the "py" command.
+
+..
+
+.. bpo: 41412
+.. date: 2020-07-28-11-55-43
+.. nonce: ME20KB
+.. section: Windows
+
+The installer will now fail to install on Windows 7 and Windows 8. Further,
+the UCRT dependency is now always downloaded on demand.
+
+..
+
+.. bpo: 40741
+.. date: 2020-07-20-23-26-26
+.. nonce: C9sc_d
+.. section: Windows
+
+Update Windows release to include SQLite 3.32.3.
+
+..
+
+.. bpo: 41142
+.. date: 2020-06-28-12-40-41
+.. nonce: jpZzzh
+.. section: Windows
+
+:mod:`msilib` now supports creating CAB files with non-ASCII file path and
+adding files with non-ASCII file path to them.
+
+..
+
+.. bpo: 41074
+.. date: 2020-06-24-21-30-42
+.. nonce: gaQc3C
+.. section: Windows
+
+Fixed support of non-ASCII names in functions :func:`msilib.OpenDatabase`
+and :func:`msilib.init_database` and non-ASCII SQL in method
+:meth:`msilib.Database.OpenView`.
+
+..
+
+.. bpo: 41039
+.. date: 2020-06-23-03-12-57
+.. nonce: 0hgd0s
+.. section: Windows
+
+Stable ABI redirection DLL (python3.dll) now uses ``#pragma
+comment(linker)`` for re-exporting.
+
+..
+
+.. bpo: 40164
+.. date: 2020-06-12-13-13-44
+.. nonce: SPrSn5
+.. section: Windows
+
+Updates Windows OpenSSL to 1.1.1g
+
+..
+
+.. bpo: 39631
+.. date: 2020-05-19-14-43-33
+.. nonce: Z5yXam
+.. section: Windows
+
+Changes the registered MIME type for ``.py`` files on Windows to
+``text/x-python`` instead of ``text/plain``.
+
+..
+
+.. bpo: 40677
+.. date: 2020-05-19-04-11-12
+.. nonce: qQbLW8
+.. section: Windows
+
+Manually define IO_REPARSE_TAG_APPEXECLINK in case some old Windows SDK
+doesn't have it.
+
+..
+
+.. bpo: 37556
+.. date: 2019-07-11-06-11-09
+.. nonce: sygMUU
+.. section: Windows
+
+Extend py.exe help to mention overrides via venv, shebang, environmental
+variables & ini files.
+
+..
+
+.. bpo: 41557
+.. date: 2020-08-26-09-31-37
+.. nonce: mcQ75z
+.. section: macOS
+
+Update macOS installer to use SQLite 3.33.0.
+
+..
+
+.. bpo: 39580
+.. date: 2020-06-25-06-09-00
+.. nonce: N_vJ9h
+.. section: macOS
+
+Avoid opening Finder window if running installer from the command line.
+Patch contributed by Rick Heil.
+
+..
+
+.. bpo: 41100
+.. date: 2020-06-24-13-51-57
+.. nonce: mcHdc5
+.. section: macOS
+
+Fix configure error when building on macOS 11. Note that the current Python
+release was released shortly after the first developer preview of macOS 11
+(Big Sur); there are other known issues with building and running on the
+developer preview. Big Sur is expected to be fully supported in a future
+bugfix release of Python 3.8.x and with 3.9.0.
+
+..
+
+.. bpo: 40741
+.. date: 2020-06-19-14-19-08
+.. nonce: L7yTbm
+.. section: macOS
+
+Update macOS installer to use SQLite 3.32.3.
+
+..
+
+.. bpo: 41005
+.. date: 2020-06-17-13-45-15
+.. nonce: zZegdV
+.. section: macOS
+
+fixed an XDG settings issue not allowing macos to open browser in
+webbrowser.py
+
+..
+
+.. bpo: 40741
+.. date: 2020-06-07-20-10-56
+.. nonce: 80A2BW
+.. section: macOS
+
+Update macOS installer to use SQLite 3.32.2.
+
+..
+
+.. bpo: 41775
+.. date: 2020-09-24-14-31-16
+.. nonce: sB8Vre
+.. section: IDLE
+
+Use 'IDLE Shell' as shell title
+
+..
+
+.. bpo: 35764
+.. date: 2020-09-22-11-13-45
+.. nonce: VoNa8y
+.. section: IDLE
+
+Rewrite the Calltips doc section.
+
+..
+
+.. bpo: 40181
+.. date: 2020-09-22-00-45-40
+.. nonce: hhQi3z
+.. section: IDLE
+
+In calltips, stop reminding that '/' marks the end of positional-only
+arguments.
+
+..
+
+.. bpo: 41468
+.. date: 2020-08-09-13-42-55
+.. nonce: zkP0_Y
+.. section: IDLE
+
+Improve IDLE run crash error message (which users should never see).
+
+..
+
+.. bpo: 41373
+.. date: 2020-07-24-17-49-58
+.. nonce: YQIPu_
+.. section: IDLE
+
+Save files loaded with no line ending, as when blank, or different line
+endings, by setting its line ending to the system default. Fix regression in
+3.8.4 and 3.9.0b4.
+
+..
+
+.. bpo: 41300
+.. date: 2020-07-16-17-39-06
+.. nonce: wRixNb
+.. section: IDLE
+
+Save files with non-ascii chars. Fix regression released in 3.9.0b4 and
+3.8.4.
+
+..
+
+.. bpo: 37765
+.. date: 2020-07-07-18-44-30
+.. nonce: umc1o8
+.. section: IDLE
+
+Add keywords to module name completion list. Rewrite Completions section of
+IDLE doc.
+
+..
+
+.. bpo: 41152
+.. date: 2020-06-29-14-51-15
+.. nonce: d6mV0C
+.. section: IDLE
+
+The encoding of ``stdin``, ``stdout`` and ``stderr`` in IDLE is now always
+UTF-8.
+
+..
+
+.. bpo: 41144
+.. date: 2020-06-27-17-02-00
+.. nonce: JoFGIX
+.. section: IDLE
+
+Make Open Module open a special module such as os.path.
+
+..
+
+.. bpo: 39885
+.. date: 2020-05-29-18-21-58
+.. nonce: zB_-bN
+.. section: IDLE
+
+Make context menu Cut and Copy work again when right-clicking within a
+selection.
+
+..
+
+.. bpo: 40723
+.. date: 2020-05-24-06-19-43
+.. nonce: AJLd4U
+.. section: IDLE
+
+Make test_idle pass when run after import.
+
+..
+
+.. bpo: 41936
+.. date: 2020-10-05-01-25-23
+.. nonce: 1gb5ra
+.. section: C API
+
+Removed undocumented macros ``Py_ALLOW_RECURSION`` and
+``Py_END_ALLOW_RECURSION`` and the ``recursion_critical`` field of the
+:c:type:`PyInterpreterState` structure.
+
+..
+
+.. bpo: 41692
+.. date: 2020-10-02-00-57-34
+.. nonce: fDScsF
+.. section: C API
+
+The ``PyUnicode_InternImmortal()`` function is now deprecated and will be
+removed in Python 3.12: use :c:func:`PyUnicode_InternInPlace` instead. Patch
+by Victor Stinner.
+
+..
+
+.. bpo: 41842
+.. date: 2020-09-27-20-43-16
+.. nonce: bCakAj
+.. section: C API
+
+Add :c:func:`PyCodec_Unregister` function to unregister a codec search
+function.
+
+..
+
+.. bpo: 41834
+.. date: 2020-09-22-14-47-12
+.. nonce: nrOrDU
+.. section: C API
+
+Remove the ``_Py_CheckRecursionLimit`` variable: it has been replaced by
+``ceval.recursion_limit`` of the :c:type:`PyInterpreterState` structure.
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 41689
+.. date: 2020-09-01-23-39-45
+.. nonce: zxHbLB
+.. section: C API
+
+Types created with :c:func:`PyType_FromSpec` now make any signature in their
+``tp_doc`` slot accessible from ``__text_signature__``.
+
+..
+
+.. bpo: 41524
+.. date: 2020-08-12-17-09-06
+.. nonce: u6Xfr2
+.. section: C API
+
+Fix bug in PyOS_mystrnicmp and PyOS_mystricmp that incremented pointers
+beyond the end of a string.
+
+..
+
+.. bpo: 41324
+.. date: 2020-08-10-16-05-08
+.. nonce: waZD35
+.. section: C API
+
+Add a minimal decimal capsule API. The API supports fast conversions
+between Decimals up to 38 digits and their triple representation as a C
+struct.
+
+..
+
+.. bpo: 30155
+.. date: 2020-07-26-19-39-45
+.. nonce: rHZRJ_
+.. section: C API
+
+Add :c:func:`PyDateTime_DATE_GET_TZINFO` and
+:c:func:`PyDateTime_TIME_GET_TZINFO` macros for accessing the ``tzinfo``
+attributes of :class:`datetime.datetime` and :class:`datetime.time` objects.
+
+..
+
+.. bpo: 40170
+.. date: 2020-07-08-10-14-52
+.. nonce: N6Qx1i
+.. section: C API
+
+Revert :c:func:`PyType_HasFeature` change: it reads again directly the
+:c:member:`PyTypeObject.tp_flags` member when the limited C API is not used,
+rather than always calling :c:func:`PyType_GetFlags` which hides
+implementation details.
+
+..
+
+.. bpo: 41123
+.. date: 2020-06-29-15-49-36
+.. nonce: wYY4E1
+.. section: C API
+
+Remove ``PyUnicode_AsUnicodeCopy``.
+
+..
+
+.. bpo: 41123
+.. date: 2020-06-29-11-33-49
+.. nonce: qFevek
+.. section: C API
+
+Removed ``PyLong_FromUnicode()``.
+
+..
+
+.. bpo: 41123
+.. date: 2020-06-28-11-39-22
+.. nonce: sjJWjQ
+.. section: C API
+
+Removed ``PyUnicode_GetMax()``.
+
+..
+
+.. bpo: 41123
+.. date: 2020-06-26-13-29-25
+.. nonce: bRa1oy
+.. section: C API
+
+Removed ``Py_UNICODE_str*`` functions manipulating ``Py_UNICODE*`` strings.
+
+..
+
+.. bpo: 41103
+.. date: 2020-06-24-22-57-07
+.. nonce: doojgE
+.. section: C API
+
+``PyObject_AsCharBuffer()``, ``PyObject_AsReadBuffer()``,
+``PyObject_CheckReadBuffer()``, and ``PyObject_AsWriteBuffer()`` are
+removed. Please migrate to new buffer protocol; :c:func:`PyObject_GetBuffer`
+and :c:func:`PyBuffer_Release`.
+
+..
+
+.. bpo: 36346
+.. date: 2020-06-17-20-31-12
+.. nonce: mwIyxi
+.. section: C API
+
+Raises DeprecationWarning for ``PyUnicode_FromUnicode(NULL, size)`` and
+``PyUnicode_FromStringAndSize(NULL, size)`` with ``size > 0``.
+
+..
+
+.. bpo: 36346
+.. date: 2020-06-17-11-24-00
+.. nonce: fTMr3S
+.. section: C API
+
+Mark ``Py_UNICODE_COPY``, ``Py_UNICODE_FILL``, ``PyUnicode_WSTR_LENGTH``,
+``PyUnicode_FromUnicode``, ``PyUnicode_AsUnicode``, and
+``PyUnicode_AsUnicodeAndSize`` as deprecated in C. Remove
+``Py_UNICODE_MATCH`` which was deprecated and broken since Python 3.3.
+
+..
+
+.. bpo: 40989
+.. date: 2020-06-15-23-17-51
+.. nonce: tlzG3r
+.. section: C API
+
+The :c:func:`PyObject_INIT` and :c:func:`PyObject_INIT_VAR` macros become
+aliases to, respectively, :c:func:`PyObject_Init` and
+:c:func:`PyObject_InitVar` functions.
+
+..
+
+.. bpo: 36020
+.. date: 2020-06-15-16-46-01
+.. nonce: djI6jw
+.. section: C API
+
+On Windows, ``#include "pyerrors.h"`` no longer defines ``snprintf`` and
+``vsnprintf`` macros.
+
+..
+
+.. bpo: 40943
+.. date: 2020-06-10-18-37-26
+.. nonce: i4q7rK
+.. section: C API
+
+The ``PY_SSIZE_T_CLEAN`` macro must now be defined to use
+:c:func:`PyArg_ParseTuple` and :c:func:`Py_BuildValue` formats which use
+``#``: ``es#``, ``et#``, ``s#``, ``u#``, ``y#``, ``z#``, ``U#`` and ``Z#``.
+See :ref:`Parsing arguments and building values <arg-parsing>` and the
+:pep:`353`.
+
+..
+
+.. bpo: 40910
+.. date: 2020-06-08-15-59-06
+.. nonce: L56oI0
+.. section: C API
+
+Export explicitly the :c:func:`Py_GetArgcArgv` function to the C API and
+document the function. Previously, it was exported implicitly which no
+longer works since Python is built with ``-fvisibility=hidden``.
+
+..
+
+.. bpo: 40724
+.. date: 2020-06-04-08-01-23
+.. nonce: qIIdSi
+.. section: C API
+
+Allow defining buffer slots in type specs.
+
+..
+
+.. bpo: 40679
+.. date: 2020-06-03-17-48-13
+.. nonce: 3sgWma
+.. section: C API
+
+Fix a ``_PyEval_EvalCode()`` crash if *qualname* argument is NULL.
+
+..
+
+.. bpo: 40839
+.. date: 2020-06-01-20-47-49
+.. nonce: bAi52Z
+.. section: C API
+
+Calling :c:func:`PyDict_GetItem` without :term:`GIL` held had been allowed
+for historical reason. It is no longer allowed.
+
+..
+
+.. bpo: 40826
+.. date: 2020-06-01-16-12-37
+.. nonce: zQzFoK
+.. section: C API
+
+:c:func:`PyOS_InterruptOccurred` now fails with a fatal error if it is
+called with the GIL released.
+
+..
+
+.. bpo: 40792
+.. date: 2020-05-27-11-02-15
+.. nonce: pBw2Bb
+.. section: C API
+
+The result of :c:func:`PyNumber_Index` now always has exact type
+:class:`int`. Previously, the result could have been an instance of a
+subclass of ``int``.
+
+..
+
+.. bpo: 39573
+.. date: 2020-05-26-16-21-47
+.. nonce: depAgq
+.. section: C API
+
+Convert :c:func:`Py_REFCNT` and :c:func:`Py_SIZE` macros to static inline
+functions. They cannot be used as l-value anymore: use
+:c:func:`Py_SET_REFCNT` and :c:func:`Py_SET_SIZE` to set an object reference
+count and size. This change is backward incompatible on purpose, to prepare
+the C API for an opaque :c:type:`PyObject` structure.
+
+..
+
+.. bpo: 40703
+.. date: 2020-05-20-19-11-12
+.. nonce: qQXfW8
+.. section: C API
+
+The PyType_FromSpec*() functions no longer overwrite the type's "__module__"
+attribute if it is set via "Py_tp_members" or "Py_tp_getset".
+
+..
+
+.. bpo: 39583
+.. date: 2020-02-08-08-01-35
+.. nonce: qURKSl
+.. section: C API
+
+Remove superfluous "extern C" declarations from ``Include/cpython/*.h``.
--- /dev/null
+.. bpo: 42103
+.. date: 2020-10-23-19-19-30
+.. nonce: cILT66
+.. release date: 2020-11-03
+.. section: Security
+
+Prevented potential DoS attack via CPU and RAM exhaustion when processing
+malformed Apple Property List files in binary format.
+
+..
+
+.. bpo: 42051
+.. date: 2020-10-19-10-56-27
+.. nonce: EU_B7u
+.. section: Security
+
+The :mod:`plistlib` module no longer accepts entity declarations in XML
+plist files to avoid XML vulnerabilities. This should not affect users as
+entity declarations are not used in regular plist files.
+
+..
+
+.. bpo: 42236
+.. date: 2020-11-01-21-21-38
+.. nonce: MPx-NK
+.. section: Core and Builtins
+
+If the ``nl_langinfo(CODESET)`` function returns an empty string, Python now
+uses UTF-8 as the filesystem encoding. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42218
+.. date: 2020-10-31-17-50-23
+.. nonce: Dp_Z3v
+.. section: Core and Builtins
+
+Fixed a bug in the PEG parser that was causing crashes in debug mode. Now
+errors are checked in left-recursive rules to avoid cases where such errors
+do not get handled in time and appear as long-distance crashes in other
+places.
+
+..
+
+.. bpo: 42214
+.. date: 2020-10-30-22-16-30
+.. nonce: lXskM_
+.. section: Core and Builtins
+
+Fixed a possible crash in the PEG parser when checking for the '!=' token in
+the ``barry_as_flufl`` rule. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 42206
+.. date: 2020-10-30-13-11-01
+.. nonce: xxssR8
+.. section: Core and Builtins
+
+Propagate and raise the errors caused by :c:func:`PyAST_Validate` in the
+parser.
+
+..
+
+.. bpo: 41796
+.. date: 2020-10-29-12-49-08
+.. nonce: tkGdHq
+.. section: Core and Builtins
+
+The :mod:`ast` module internal state is now per interpreter. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 42143
+.. date: 2020-10-27-21-34-05
+.. nonce: N6KXUO
+.. section: Core and Builtins
+
+Fix handling of errors during creation of ``PyFunctionObject``, which
+resulted in operations on uninitialized memory. Patch by Yonatan
+Goldschmidt.
+
+..
+
+.. bpo: 41659
+.. date: 2020-10-27-18-32-49
+.. nonce: d4a-8o
+.. section: Core and Builtins
+
+Fix a bug in the parser, where a curly brace following a `primary` didn't
+fail immediately. This led to invalid expressions like `a {b}` to throw a
+:exc:`SyntaxError` with a wrong offset, or invalid expressions ending with a
+curly brace like `a {` to not fail immediately in the REPL.
+
+..
+
+.. bpo: 42150
+.. date: 2020-10-25-21-14-18
+.. nonce: b70u_T
+.. section: Core and Builtins
+
+Fix possible buffer overflow in the new parser when checking for
+continuation lines. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 42123
+.. date: 2020-10-23-02-43-24
+.. nonce: 64gJWC
+.. section: Core and Builtins
+
+Run the parser two times. On the first run, disable all the rules that only
+generate better error messages to gain performance. If there's a parse
+failure, run the parser a second time with those enabled.
+
+..
+
+.. bpo: 42093
+.. date: 2020-10-20-04-24-07
+.. nonce: ooZZNh
+.. section: Core and Builtins
+
+The ``LOAD_ATTR`` instruction now uses new "per opcode cache" mechanism and
+it is about 36% faster now. Patch by Pablo Galindo and Yury Selivanov.
+
+..
+
+.. bpo: 42030
+.. date: 2020-10-15-21-55-32
+.. nonce: PmU2CA
+.. section: Core and Builtins
+
+Support for the legacy AIX-specific shared library loading support has been
+removed. All versions of AIX since 4.3 have supported and defaulted to using
+the common Unix mechanism instead.
+
+..
+
+.. bpo: 41984
+.. date: 2020-10-14-16-19-43
+.. nonce: SEtKMr
+.. section: Core and Builtins
+
+The garbage collector now tracks all user-defined classes. Patch by Brandt
+Bucher.
+
+..
+
+.. bpo: 41993
+.. date: 2020-10-10-13-53-52
+.. nonce: YMzixQ
+.. section: Core and Builtins
+
+Fixed potential issues with removing not completely initialized module from
+``sys.modules`` when import fails.
+
+..
+
+.. bpo: 41979
+.. date: 2020-10-09-10-55-50
+.. nonce: ImXIk2
+.. section: Core and Builtins
+
+Star-unpacking is now allowed for with item's targets in the PEG parser.
+
+..
+
+.. bpo: 41974
+.. date: 2020-10-08-09-58-19
+.. nonce: 8B-q8O
+.. section: Core and Builtins
+
+Removed special methods ``__int__``, ``__float__``, ``__floordiv__``,
+``__mod__``, ``__divmod__``, ``__rfloordiv__``, ``__rmod__`` and
+``__rdivmod__`` of the :class:`complex` class. They always raised a
+:exc:`TypeError`.
+
+..
+
+.. bpo: 41902
+.. date: 2020-10-02-13-32-05
+.. nonce: ZKTxzW
+.. section: Core and Builtins
+
+Micro optimization when compute :c:member:`~PySequenceMethods.sq_item` and
+:c:member:`~PyMappingMethods.mp_subscript` of :class:`range`. Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 41894
+.. date: 2020-10-02-11-35-33
+.. nonce: ffmtOt
+.. section: Core and Builtins
+
+When loading a native module and a load failure occurs, prevent a possible
+UnicodeDecodeError when not running in a UTF-8 locale by decoding the load
+error message using the current locale's encoding.
+
+..
+
+.. bpo: 41902
+.. date: 2020-10-01-22-44-23
+.. nonce: iLoMVF
+.. section: Core and Builtins
+
+Micro optimization for range.index if step is 1. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 41435
+.. date: 2020-08-07-13-42-48
+.. nonce: qPWjJA
+.. section: Core and Builtins
+
+Add `sys._current_exceptions()` function to retrieve a dictionary mapping
+each thread's identifier to the topmost exception currently active in that
+thread at the time the function is called.
+
+..
+
+.. bpo: 38605
+.. date: 2020-05-27-16-08-16
+.. nonce: rcs2uK
+.. section: Core and Builtins
+
+Enable ``from __future__ import annotations`` (:pep:`563`) by default. The
+values found in :attr:`__annotations__` dicts are now strings, e.g. ``{"x":
+"int"}`` instead of ``{"x": int}``.
+
+..
+
+.. bpo: 35455
+.. date: 2020-11-02-14-10-48
+.. nonce: Q1xTIo
+.. section: Library
+
+On Solaris, :func:`~time.thread_time` is now implemented with
+``gethrvtime()`` because ``clock_gettime(CLOCK_THREAD_CPUTIME_ID)`` is not
+always available. Patch by Jakub Kulik.
+
+..
+
+.. bpo: 42233
+.. date: 2020-11-02-01-31-15
+.. nonce: YxRj-h
+.. section: Library
+
+The :func:`repr` of :mod:`typing` types containing :ref:`Generic Alias Types
+<types-genericalias>` previously did not show the parameterized types in the
+``GenericAlias``. They have now been changed to do so.
+
+..
+
+.. bpo: 29566
+.. date: 2020-10-31-13-28-36
+.. nonce: 6aDbty
+.. section: Library
+
+``binhex.binhex()`` consistently writes macOS 9 line endings.
+
+..
+
+.. bpo: 26789
+.. date: 2020-10-31-01-16-49
+.. nonce: 9BdNAt
+.. section: Library
+
+The :class:`logging.FileHandler` class now keeps a reference to the builtin
+:func:`open` function to be able to open or reopen the file during Python
+finalization. Fix errors like: ``NameError: name 'open' is not defined``.
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 42157
+.. date: 2020-10-26-23-29-16
+.. nonce: 4wuwTe
+.. section: Library
+
+Removed the ``unicodedata.ucnhash_CAPI`` attribute which was an internal
+PyCapsule object. The related private ``_PyUnicode_Name_CAPI`` structure was
+moved to the internal C API. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42157
+.. date: 2020-10-26-19-08-07
+.. nonce: Bdpa04
+.. section: Library
+
+Convert the :mod:`unicodedata` extension module to the multiphase
+initialization API (:pep:`489`) and convert the ``unicodedata.UCD`` static
+type to a heap type. Patch by Mohamed Koubaa and Victor Stinner.
+
+..
+
+.. bpo: 42146
+.. date: 2020-10-25-19-25-02
+.. nonce: 6A8uvS
+.. section: Library
+
+Fix memory leak in :func:`subprocess.Popen` in case an uid (gid) specified
+in `user` (`group`, `extra_groups`) overflows `uid_t` (`gid_t`).
+
+..
+
+.. bpo: 42103
+.. date: 2020-10-23-19-20-14
+.. nonce: C5obK2
+.. section: Library
+
+:exc:`~plistlib.InvalidFileException` and :exc:`RecursionError` are now the
+only errors caused by loading malformed binary Plist file (previously
+ValueError and TypeError could be raised in some specific cases).
+
+..
+
+.. bpo: 41490
+.. date: 2020-10-23-08-54-47
+.. nonce: -Yk6OD
+.. section: Library
+
+In ``importlib.resources``, ``.path`` method is more aggressive about
+releasing handles to zipfile objects early, enabling use-cases like certifi
+to leave the context open but delete the underlying zip file.
+
+..
+
+.. bpo: 41052
+.. date: 2020-10-21-23-45-02
+.. nonce: 3N7J2J
+.. section: Library
+
+Pickling heap types implemented in C with protocols 0 and 1 raises now an
+error instead of producing incorrect data.
+
+..
+
+.. bpo: 42089
+.. date: 2020-10-19-16-53-19
+.. nonce: R1dthW
+.. section: Library
+
+In ``importlib.metadata.PackageNotFoundError``, make reference to the
+package metadata being missing to improve the user experience.
+
+..
+
+.. bpo: 41491
+.. date: 2020-10-19-14-02-09
+.. nonce: d1BUWH
+.. section: Library
+
+plistlib: fix parsing XML plists with hexadecimal integer values
+
+..
+
+.. bpo: 42065
+.. date: 2020-10-17-23-17-18
+.. nonce: 85BsRA
+.. section: Library
+
+Fix an incorrectly formatted error from :meth:`_codecs.charmap_decode` when
+called with a mapped value outside the range of valid Unicode code points.
+PR by Max Bernstein.
+
+..
+
+.. bpo: 41966
+.. date: 2020-10-17-07-52-53
+.. nonce: gwEQRZ
+.. section: Library
+
+Fix pickling pure Python :class:`datetime.time` subclasses. Patch by Dean
+Inwood.
+
+..
+
+.. bpo: 19270
+.. date: 2020-10-16-22-48-01
+.. nonce: jd_gkA
+.. section: Library
+
+:meth:`sched.scheduler.cancel()` will now cancel the correct event, if two
+events with same priority are scheduled for the same time. Patch by Bar
+Harel.
+
+..
+
+.. bpo: 28660
+.. date: 2020-10-16-16-08-04
+.. nonce: eX9pvD
+.. section: Library
+
+:func:`textwrap.wrap` now attempts to break long words after hyphens when
+``break_long_words=True`` and ``break_on_hyphens=True``.
+
+..
+
+.. bpo: 35823
+.. date: 2020-10-16-07-45-35
+.. nonce: SNQo56
+.. section: Library
+
+Use ``vfork()`` instead of ``fork()`` for :func:`subprocess.Popen` on Linux
+to improve performance in cases where it is deemed safe.
+
+..
+
+.. bpo: 42043
+.. date: 2020-10-15-17-20-37
+.. nonce: OS0p_v
+.. section: Library
+
+Add support for ``zipfile.Path`` inheritance. ``zipfile.Path.is_file()`` now
+returns False for non-existent names. ``zipfile.Path`` objects now expose a
+``.filename`` attribute and rely on that to resolve ``.name`` and
+``.parent`` when the ``Path`` object is at the root of the zipfile.
+
+..
+
+.. bpo: 42021
+.. date: 2020-10-12-21-21-24
+.. nonce: 8yv_8-
+.. section: Library
+
+Fix possible ref leaks in :mod:`sqlite3` module init.
+
+..
+
+.. bpo: 39101
+.. date: 2020-10-11-21-43-03
+.. nonce: -I49Pm
+.. section: Library
+
+Fixed tests using IsolatedAsyncioTestCase from hanging on BaseExceptions.
+
+..
+
+.. bpo: 41976
+.. date: 2020-10-08-18-22-28
+.. nonce: Svm0wb
+.. section: Library
+
+Fixed a bug that was causing :func:`ctypes.util.find_library` to return
+``None`` when triying to locate a library in an environment when gcc>=9 is
+available and ``ldconfig`` is not. Patch by Pablo Galindo
+
+..
+
+.. bpo: 41943
+.. date: 2020-10-07-18-36-03
+.. nonce: Pt55fT
+.. section: Library
+
+Fix bug where TestCase.assertLogs doesn't correctly filter messages by
+level.
+
+..
+
+.. bpo: 41923
+.. date: 2020-10-03-23-14-50
+.. nonce: Buonw9
+.. section: Library
+
+Implement :pep:`613`, introducing :data:`typing.TypeAlias` annotation.
+
+..
+
+.. bpo: 41905
+.. date: 2020-10-01-21-11-03
+.. nonce: _JpjR4
+.. section: Library
+
+A new function in abc: *update_abstractmethods* to re-calculate an abstract
+class's abstract status. In addition, *dataclass* has been changed to call
+this function.
+
+..
+
+.. bpo: 23706
+.. date: 2020-09-30-11-05-11
+.. nonce: dHTGjF
+.. section: Library
+
+Added *newline* parameter to ``pathlib.Path.write_text()``.
+
+..
+
+.. bpo: 41876
+.. date: 2020-09-29-16-23-54
+.. nonce: QicdDU
+.. section: Library
+
+Tkinter font class repr uses font name
+
+..
+
+.. bpo: 41831
+.. date: 2020-09-22-11-07-50
+.. nonce: k-Eop_
+.. section: Library
+
+``str()`` for the ``type`` attribute of the ``tkinter.Event`` object always
+returns now the numeric code returned by Tk instead of the name of the event
+type.
+
+..
+
+.. bpo: 39337
+.. date: 2020-09-13-02-02-18
+.. nonce: L3NXTt
+.. section: Library
+
+:func:`encodings.normalize_encoding` now ignores non-ASCII characters.
+
+..
+
+.. bpo: 41747
+.. date: 2020-09-08-23-41-29
+.. nonce: M6wLKv
+.. section: Library
+
+Ensure all methods that generated from :func:`dataclasses.dataclass` objects
+now have the proper ``__qualname__`` attribute referring to the class they
+belong to. Patch by Batuhan Taskaya.
+
+..
+
+.. bpo: 30681
+.. date: 2020-09-04-17-33-04
+.. nonce: LR4fnY
+.. section: Library
+
+Handle exceptions caused by unparsable date headers when using email
+"default" policy. Patch by Tim Bell, Georges Toth
+
+..
+
+.. bpo: 41586
+.. date: 2020-08-19-08-32-13
+.. nonce: IYjmjK
+.. section: Library
+
+Add F_SETPIPE_SZ and F_GETPIPE_SZ to fcntl module. Allow setting pipesize on
+subprocess.Popen.
+
+..
+
+.. bpo: 41229
+.. date: 2020-07-19-20-10-41
+.. nonce: p8rJa2
+.. section: Library
+
+Add ``contextlib.aclosing`` for deterministic cleanup of async generators
+which is analogous to ``contextlib.closing`` for non-async generators. Patch
+by Joongi Kim and John Belmonte.
+
+..
+
+.. bpo: 16396
+.. date: 2020-07-08-09-45-00
+.. nonce: z8o8Pn
+.. section: Library
+
+Allow ``ctypes.wintypes`` to be imported on non-Windows systems.
+
+..
+
+.. bpo: 4356
+.. date: 2020-05-31-10-48-47
+.. nonce: P8kXqp
+.. section: Library
+
+Add a key function to the bisect module.
+
+..
+
+.. bpo: 40592
+.. date: 2020-05-14-16-01-34
+.. nonce: Cmk855
+.. section: Library
+
+:func:`shutil.which` now ignores empty entries in :envvar:`PATHEXT` instead
+of treating them as a match.
+
+..
+
+.. bpo: 40492
+.. date: 2020-05-04-12-16-00
+.. nonce: ONk9Na
+.. section: Library
+
+Fix ``--outfile`` for :mod:`cProfile` / :mod:`profile` not writing the
+output file in the original directory when the program being profiled
+changes the working directory. PR by Anthony Sottile.
+
+..
+
+.. bpo: 34204
+.. date: 2020-04-21-17-18-33
+.. nonce: 9wXTtY
+.. section: Library
+
+The :mod:`shelve` module now uses :data:`pickle.DEFAULT_PROTOCOL` by default
+instead of :mod:`pickle` protocol ``3``.
+
+..
+
+.. bpo: 27321
+.. date: 2020-01-19-18-40-26
+.. nonce: 8e6SpM
+.. section: Library
+
+Fixed KeyError exception when flattening an email to a string attempts to
+replace a non-existent Content-Transfer-Encoding header.
+
+..
+
+.. bpo: 38976
+.. date: 2019-12-05-05-22-49
+.. nonce: 5MG7Uu
+.. section: Library
+
+The :mod:`http.cookiejar` module now supports the parsing of cookies in
+CURL-style cookiejar files through MozillaCookieJar on all platforms.
+Previously, such cookie entries would be silently ignored when loading a
+cookiejar with such entries.
+
+Additionally, the HTTP Only attribute is persisted in the object, and will
+be correctly written to file if the MozillaCookieJar object is subsequently
+dumped.
+
+..
+
+.. bpo: 42061
+.. date: 2020-10-28-21-39-45
+.. nonce: _x-0sg
+.. section: Documentation
+
+Document __format__ functionality for IP addresses.
+
+..
+
+.. bpo: 41910
+.. date: 2020-10-21-14-40-54
+.. nonce: CzBMit
+.. section: Documentation
+
+Document the default implementation of `object.__eq__`.
+
+..
+
+.. bpo: 42010
+.. date: 2020-10-21-02-21-14
+.. nonce: 76vJ0u
+.. section: Documentation
+
+Clarify that subscription expressions are also valid for certain
+:term:`classes <class>` and :term:`types <type>` in the standard library,
+and for user-defined classes and types if the classmethod
+:meth:`__class_getitem__` is provided.
+
+..
+
+.. bpo: 41805
+.. date: 2020-10-10-01-36-37
+.. nonce: l-CGv5
+.. section: Documentation
+
+Documented :ref:`generic alias type <types-genericalias>` and
+:data:`types.GenericAlias`. Also added an entry in glossary for
+:term:`generic types <generic type>`.
+
+..
+
+.. bpo: 39693
+.. date: 2020-02-24-09-02-05
+.. nonce: QXw0Fm
+.. section: Documentation
+
+Fix tarfile's extractfile documentation
+
+..
+
+.. bpo: 39416
+.. date: 2020-01-22-05-14-53
+.. nonce: uYjhEm
+.. section: Documentation
+
+Document some restrictions on the default string representations of numeric
+classes.
+
+..
+
+.. bpo: 41739
+.. date: 2020-10-12-00-11-47
+.. nonce: wSCc4K
+.. section: Tests
+
+Fix test_logging.test_race_between_set_target_and_flush(): the test now
+waits until all threads complete to avoid leaking running threads.
+
+..
+
+.. bpo: 41970
+.. date: 2020-10-08-14-00-17
+.. nonce: aZ8QFf
+.. section: Tests
+
+Avoid a test failure in ``test_lib2to3`` if the module has already imported
+at the time the test executes. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 41944
+.. date: 2020-10-05-17-43-46
+.. nonce: rf1dYb
+.. section: Tests
+
+Tests for CJK codecs no longer call ``eval()`` on content received via HTTP.
+
+..
+
+.. bpo: 41306
+.. date: 2020-08-03-13-44-37
+.. nonce: VDoWXI
+.. section: Tests
+
+Fixed a failure in ``test_tk.test_widgets.ScaleTest`` happening when
+executing the test with Tk 8.6.10.
+
+..
+
+.. bpo: 38980
+.. date: 2020-10-21-18-31-54
+.. nonce: xz7BNd
+.. section: Build
+
+Add ``-fno-semantic-interposition`` to both the compile and link line when
+building with ``--enable-optimizations``. Patch by Victor Stinner and Pablo
+Galindo.
+
+..
+
+.. bpo: 38439
+.. date: 2020-10-20-13-19-42
+.. nonce: eMLi-t
+.. section: Windows
+
+Updates the icons for IDLE in the Windows Store package.
+
+..
+
+.. bpo: 38252
+.. date: 2020-10-18-18-43-45
+.. nonce: 7Nlepg
+.. section: Windows
+
+Use 8-byte step to detect ASCII sequence in 64-bit Windows build.
+
+..
+
+.. bpo: 39107
+.. date: 2020-09-24-23-09-40
+.. nonce: GbUZvD
+.. section: Windows
+
+Update Tcl and Tk to 8.6.10 in Windows installer.
+
+..
+
+.. bpo: 41557
+.. date: 2020-08-26-09-35-06
+.. nonce: vt00cQ
+.. section: Windows
+
+Update Windows installer to use SQLite 3.33.0.
+
+..
+
+.. bpo: 38324
+.. date: 2020-05-30-02-46-43
+.. nonce: 476M-5
+.. section: Windows
+
+Avoid Unicode errors when accessing certain locale data on Windows.
+
+..
+
+.. bpo: 41471
+.. date: 2020-10-19-12-25-19
+.. nonce: gwA7un
+.. section: macOS
+
+Ignore invalid prefix lengths in system proxy excludes.
+
+..
+
+.. bpo: 33987
+.. date: 2020-10-24-21-27-37
+.. nonce: fIh9JL
+.. section: IDLE
+
+Mostly finish using ttk widgets, mainly for editor, settings, and searches.
+Some patches by Mark Roseman.
+
+..
+
+.. bpo: 40511
+.. date: 2020-06-16-12-16-13
+.. nonce: XkihpM
+.. section: IDLE
+
+Typing opening and closing parentheses inside the parentheses of a function
+call will no longer cause unnecessary "flashing" off and on of an existing
+open call-tip, e.g. when typed in a string literal.
+
+..
+
+.. bpo: 38439
+.. date: 2020-04-22-09-37-40
+.. nonce: ieXL-c
+.. section: IDLE
+
+Add a 256×256 pixel IDLE icon to the Windows .ico file. Created by Andrew
+Clover. Remove the low-color gif variations from the .ico file.
+
+..
+
+.. bpo: 42157
+.. date: 2020-10-16-10-47-17
+.. nonce: e3BcPM
+.. section: C API
+
+The private ``_PyUnicode_Name_CAPI`` structure of the PyCapsule API
+``unicodedata.ucnhash_CAPI`` has been moved to the internal C API. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 42015
+.. date: 2020-10-12-20-13-58
+.. nonce: X4H2_V
+.. section: C API
+
+Fix potential crash in deallocating method objects when dynamically
+allocated `PyMethodDef`'s lifetime is managed through the ``self`` argument
+of a `PyCFunction`.
+
+..
+
+.. bpo: 40423
+.. date: 2020-10-11-19-17-44
+.. nonce: GsmgEj
+.. section: C API
+
+The :mod:`subprocess` module and ``os.closerange`` will now use the
+``close_range(low, high, flags)`` syscall when it is available for more
+efficient closing of ranges of descriptors.
+
+..
+
+.. bpo: 41845
+.. date: 2020-10-11-05-05-53
+.. nonce: ZFvuQM
+.. section: C API
+
+:c:func:`PyObject_GenericGetDict` is available again in the limited API when
+targeting 3.10 or later.
+
+..
+
+.. bpo: 40422
+.. date: 2020-10-10-14-05-24
+.. nonce: sh8IDY
+.. section: C API
+
+Add `_Py_closerange` function to provide performant closing of a range of
+file descriptors.
+
+..
+
+.. bpo: 41986
+.. date: 2020-10-09-22-50-46
+.. nonce: JUPE59
+.. section: C API
+
+:c:data:`Py_FileSystemDefaultEncodeErrors` and :c:data:`Py_UTF8Mode` are
+available again in limited API.
+
+..
+
+.. bpo: 41756
+.. date: 2020-09-28-14-31-07
+.. nonce: ZZ5wJG
+.. section: C API
+
+Add `PyIter_Send` function to allow sending value into
+generator/coroutine/iterator without raising StopIteration exception to
+signal return.
+
+..
+
+.. bpo: 41784
+.. date: 2020-09-14-10-17-00
+.. nonce: Yl4gI2
+.. section: C API
+
+Added ``PyUnicode_AsUTF8AndSize`` to the limited C API.
--- /dev/null
+.. bpo: 40791
+.. date: 2020-05-28-06-06-47
+.. nonce: QGZClX
+.. release date: 2020-12-07
+.. section: Security
+
+Add ``volatile`` to the accumulator variable in ``hmac.compare_digest``,
+making constant-time-defeating optimizations less likely.
+
+..
+
+.. bpo: 42576
+.. date: 2020-12-05-22-34-47
+.. nonce: lEeEl7
+.. section: Core and Builtins
+
+``types.GenericAlias`` will now raise a ``TypeError`` when attempting to
+initialize with a keyword argument. Previously, this would cause the
+interpreter to crash if the interpreter was compiled with debug symbols.
+This does not affect interpreters compiled for release. Patch by Ken Jin.
+
+..
+
+.. bpo: 42536
+.. date: 2020-12-02-20-23-31
+.. nonce: Kx3ZOu
+.. section: Core and Builtins
+
+Several built-in and standard library types now ensure that their internal
+result tuples are always tracked by the :term:`garbage collector <garbage
+collection>`:
+
+- :meth:`collections.OrderedDict.items() <collections.OrderedDict>`
+
+- :meth:`dict.items`
+
+- :func:`enumerate`
+
+- :func:`functools.reduce`
+
+- :func:`itertools.combinations`
+
+- :func:`itertools.combinations_with_replacement`
+
+- :func:`itertools.permutations`
+
+- :func:`itertools.product`
+
+- :func:`itertools.zip_longest`
+
+- :func:`zip`
+
+Previously, they could have become untracked by a prior garbage collection.
+Patch by Brandt Bucher.
+
+..
+
+.. bpo: 42500
+.. date: 2020-11-30-14-27-29
+.. nonce: excVKU
+.. section: Core and Builtins
+
+Improve handling of exceptions near recursion limit. Converts a number of
+Fatal Errors in RecursionErrors.
+
+..
+
+.. bpo: 42246
+.. date: 2020-11-24-14-01-43
+.. nonce: c9k9hj
+.. section: Core and Builtins
+
+PEP 626: After a return, the f_lineno attribute of a frame is always the
+last line executed.
+
+..
+
+.. bpo: 42435
+.. date: 2020-11-22-14-34-55
+.. nonce: uwlB2W
+.. section: Core and Builtins
+
+Speed up comparison of bytes objects with non-bytes objects when option
+:option:`-b` is specified. Speed up comparison of bytarray objects with
+non-buffer object.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-18-23-46-31
+.. nonce: GVOQ-m
+.. section: Core and Builtins
+
+Port the ``_warnings`` extension module to the multi-phase initialization
+API (:pep:`489`). Patch by Victor Stinner.
+
+..
+
+.. bpo: 41686
+.. date: 2020-11-17-16-25-50
+.. nonce: hX77kL
+.. section: Core and Builtins
+
+On Windows, the ``SIGINT`` event, ``_PyOS_SigintEvent()``, is now created
+even if Python is configured to not install signal handlers (if
+:c:member:`PyConfig.install_signal_handlers` equals to 0, or
+``Py_InitializeEx(0)``).
+
+..
+
+.. bpo: 42381
+.. date: 2020-11-16-23-45-56
+.. nonce: G4AWxL
+.. section: Core and Builtins
+
+Allow assignment expressions in set literals and set comprehensions as per
+PEP 572. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 42202
+.. date: 2020-11-16-18-13-07
+.. nonce: ZxenYD
+.. section: Core and Builtins
+
+Change function parameters annotations internal representation to tuple of
+strings. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 42374
+.. date: 2020-11-16-17-57-09
+.. nonce: t7np1E
+.. section: Core and Builtins
+
+Fix a regression introduced by the new parser, where an unparenthesized
+walrus operator was not allowed within generator expressions.
+
+..
+
+.. bpo: 42316
+.. date: 2020-11-16-17-30-03
+.. nonce: _DdmpQ
+.. section: Core and Builtins
+
+Allow an unparenthesized walrus in subscript indexes.
+
+..
+
+.. bpo: 42349
+.. date: 2020-11-13-17-25-44
+.. nonce: JdWxez
+.. section: Core and Builtins
+
+Make sure that the compiler front-end produces a well-formed control flow
+graph. Be be more aggressive in the compiler back-end, as it is now safe to
+do so.
+
+..
+
+.. bpo: 42296
+.. date: 2020-11-13-13-53-11
+.. nonce: DuGrLJ
+.. section: Core and Builtins
+
+On Windows, fix a regression in signal handling which prevented to interrupt
+a program using CTRL+C. The signal handler can be run in a thread different
+than the Python thread, in which case the test deciding if the thread can
+handle signals is wrong.
+
+..
+
+.. bpo: 42332
+.. date: 2020-11-12-23-16-14
+.. nonce: fEQIdk
+.. section: Core and Builtins
+
+:class:`types.GenericAlias` objects can now be the targets of weakrefs.
+
+..
+
+.. bpo: 42282
+.. date: 2020-11-07-21-02-05
+.. nonce: M1W4Wj
+.. section: Core and Builtins
+
+Optimise constant subexpressions that appear as part of named expressions
+(previously the AST optimiser did not descend into named expressions). Patch
+by Nick Coghlan.
+
+..
+
+.. bpo: 42266
+.. date: 2020-11-04-23-03-25
+.. nonce: G4hGDe
+.. section: Core and Builtins
+
+Fixed a bug with the LOAD_ATTR opcode cache that was not respecting
+monkey-patching a class-level attribute to make it a descriptor. Patch by
+Pablo Galindo.
+
+..
+
+.. bpo: 40077
+.. date: 2020-11-03-21-58-27
+.. nonce: a9qM1j
+.. section: Core and Builtins
+
+Convert :mod:`queue` to use heap types.
+
+..
+
+.. bpo: 42246
+.. date: 2020-11-02-15-48-17
+.. nonce: 3CNQEX
+.. section: Core and Builtins
+
+Improved accuracy of line tracing events and f_lineno attribute of Frame
+objects. See PEP 626 for details.
+
+..
+
+.. bpo: 40077
+.. date: 2020-11-02-14-39-48
+.. nonce: grY9TG
+.. section: Core and Builtins
+
+Convert :mod:`mmap` to use heap types.
+
+..
+
+.. bpo: 42233
+.. date: 2020-11-01-23-34-56
+.. nonce: zOSzja
+.. section: Core and Builtins
+
+Allow ``GenericAlias`` objects to use :ref:`union type expressions
+<types-union>`. This allows expressions like ``list[int] | dict[float,
+str]`` where previously a ``TypeError`` would have been thrown. This also
+fixes union type expressions not de-duplicating ``GenericAlias`` objects.
+(Contributed by Ken Jin in :issue:`42233`.)
+
+..
+
+.. bpo: 26131
+.. date: 2020-10-22-17-27-08
+.. nonce: B-Veg7
+.. section: Core and Builtins
+
+The import system triggers a `ImportWarning` when it falls back to using
+`load_module()`.
+
+..
+
+.. bpo: 5054
+.. date: 2020-12-04-03-51-12
+.. nonce: 53StYZ
+.. section: Library
+
+CGIHTTPRequestHandler.run_cgi() HTTP_ACCEPT improperly parsed. Replace the
+special purpose getallmatchingheaders with generic get_all method and add
+relevant tests.
+
+Original Patch by Martin Panter. Modified by Senthil Kumaran.
+
+..
+
+.. bpo: 42562
+.. date: 2020-12-03-22-42-03
+.. nonce: 2hPmhi
+.. section: Library
+
+Fix issue when dis failed to parse function that has no line numbers. Patch
+provided by Yurii Karabas.
+
+..
+
+.. bpo: 17735
+.. date: 2020-12-03-22-22-24
+.. nonce: Qsaaue
+.. section: Library
+
+:func:`inspect.findsource` now raises :exc:`OSError` instead of
+:exc:`IndexError` when :attr:`co_lineno` of a code object is greater than
+the file length. This can happen, for example, when a file is edited after
+it was imported. PR by Irit Katriel.
+
+..
+
+.. bpo: 42116
+.. date: 2020-12-03-15-42-32
+.. nonce: yIwroP
+.. section: Library
+
+Fix handling of trailing comments by :func:`inspect.getsource`.
+
+..
+
+.. bpo: 42532
+.. date: 2020-12-02-07-37-59
+.. nonce: ObNep_
+.. section: Library
+
+Remove unexpected call of ``__bool__`` when passing a ``spec_arg`` argument
+to a Mock.
+
+..
+
+.. bpo: 38200
+.. date: 2020-11-28-22-52-57
+.. nonce: DuWGlW
+.. section: Library
+
+Added itertools.pairwise()
+
+..
+
+.. bpo: 41818
+.. date: 2020-11-28-06-34-53
+.. nonce: mFSMc2
+.. section: Library
+
+Fix test_master_read() so that it succeeds on all platforms that either
+raise OSError or return b"" upon reading from master.
+
+..
+
+.. bpo: 42487
+.. date: 2020-11-28-04-31-20
+.. nonce: iqtC4L
+.. section: Library
+
+ChainMap.__iter__ no longer calls __getitem__ on underlying maps
+
+..
+
+.. bpo: 42482
+.. date: 2020-11-27-16-46-58
+.. nonce: EJC3sd
+.. section: Library
+
+:class:`~traceback.TracebackException` no longer holds a reference to the
+exception's traceback object. Consequently, instances of TracebackException
+for equivalent but non-equal exceptions now compare as equal.
+
+..
+
+.. bpo: 41818
+.. date: 2020-11-27-09-19-43
+.. nonce: KWYUbL
+.. section: Library
+
+Make test_openpty() avoid unexpected success due to number of rows and/or
+number of columns being == 0.
+
+..
+
+.. bpo: 42392
+.. date: 2020-11-26-12-40-16
+.. nonce: GbmdHE
+.. section: Library
+
+Remove loop parameter from ``asyncio.subprocess`` and ``asyncio.tasks``
+functions. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 42392
+.. date: 2020-11-25-22-44-59
+.. nonce: T_DAEl
+.. section: Library
+
+Remove loop parameter from ``asyncio.open_connection`` and
+``asyncio.start_server`` functions. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 28468
+.. date: 2020-11-24-13-18-05
+.. nonce: 8Gh2d4
+.. section: Library
+
+Add :func:`platform.freedesktop_os_release` function to parse
+freedesktop.org ``os-release`` files.
+
+..
+
+.. bpo: 42299
+.. date: 2020-11-23-23-42-08
+.. nonce: Fdn4Wf
+.. section: Library
+
+Removed the ``formatter`` module, which was deprecated in Python 3.4. It is
+somewhat obsolete, little used, and not tested. It was originally scheduled
+to be removed in Python 3.6, but such removals were delayed until after
+Python 2.7 EOL. Existing users should copy whatever classes they use into
+their code. Patch by Dong-hee Na and and Terry J. Reedy.
+
+..
+
+.. bpo: 26131
+.. date: 2020-11-22-12-30-26
+.. nonce: -HsFPG
+.. section: Library
+
+Deprecate zipimport.zipimporter.load_module() in favour of exec_module().
+
+..
+
+.. bpo: 41818
+.. date: 2020-11-20-14-44-07
+.. nonce: 33soAw
+.. section: Library
+
+Updated tests for the pty library. test_basic() has been changed to
+test_openpty(); this additionally checks if slave termios and slave winsize
+are being set properly by pty.openpty(). In order to add support for
+FreeBSD, NetBSD, OpenBSD, and Darwin, this also adds test_master_read(),
+which demonstrates that pty.spawn() should not depend on an OSError to exit
+from its copy loop.
+
+..
+
+.. bpo: 42392
+.. date: 2020-11-20-14-01-29
+.. nonce: -OUzvl
+.. section: Library
+
+Remove loop parameter from ``__init__`` in all ``asyncio.locks`` and
+``asyncio.Queue`` classes. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 15450
+.. date: 2020-11-20-10-38-34
+.. nonce: E-y9PA
+.. section: Library
+
+Make :class:`filecmp.dircmp` respect subclassing. Now the
+:attr:`filecmp.dircmp.subdirs` behaves as expected when subclassing dircmp.
+
+..
+
+.. bpo: 42413
+.. date: 2020-11-19-20-27-51
+.. nonce: fjHrHx
+.. section: Library
+
+The exception :exc:`socket.timeout` is now an alias of :exc:`TimeoutError`.
+
+..
+
+.. bpo: 31904
+.. date: 2020-11-19-16-14-36
+.. nonce: 83kf9d
+.. section: Library
+
+Support signal module on VxWorks.
+
+..
+
+.. bpo: 42406
+.. date: 2020-11-19-10-44-41
+.. nonce: r9rNCj
+.. section: Library
+
+We fixed an issue in `pickle.whichmodule` in which importing
+`multiprocessing` could change the how pickle identifies which module an
+object belongs to, potentially breaking the unpickling of those objects.
+
+..
+
+.. bpo: 42403
+.. date: 2020-11-19-10-12-39
+.. nonce: t7q5AX
+.. section: Library
+
+Simplify the :mod:`importlib` external bootstrap code:
+``importlib._bootstrap_external`` now uses regular imports to import builtin
+modules. When it is imported, the builtin :func:`__import__()` function is
+already fully working and so can be used to import builtin modules like
+:mod:`sys`. Patch by Victor Stinner.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-19-09-59-07
+.. nonce: 7cMypH
+.. section: Library
+
+Convert _sre module types to heap types (PEP 384). Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 42375
+.. date: 2020-11-19-04-13-53
+.. nonce: U8bp4s
+.. section: Library
+
+subprocess module update for DragonFlyBSD support.
+
+..
+
+.. bpo: 41713
+.. date: 2020-11-17-23-00-27
+.. nonce: -Us0tf
+.. section: Library
+
+Port the ``_signal`` extension module to the multi-phase initialization API
+(:pep:`489`). Patch by Victor Stinner and Mohamed Koubaa.
+
+..
+
+.. bpo: 37205
+.. date: 2020-11-16-15-08-12
+.. nonce: Wh5svI
+.. section: Library
+
+:func:`time.time()`, :func:`time.perf_counter()` and
+:func:`time.monotonic()` functions can no longer fail with a Python fatal
+error, instead raise a regular Python exception on failure.
+
+..
+
+.. bpo: 42328
+.. date: 2020-11-15-17-02-00
+.. nonce: bqpPlR
+.. section: Library
+
+Fixed :meth:`tkinter.ttk.Style.map`. The function accepts now the
+representation of the default state as empty sequence (as returned by
+``Style.map()``). The structure of the result is now the same on all
+platform and does not depend on the value of ``wantobjects``.
+
+..
+
+.. bpo: 42345
+.. date: 2020-11-15-15-23-34
+.. nonce: hiIR7x
+.. section: Library
+
+Fix various issues with ``typing.Literal`` parameter handling (flatten,
+deduplicate, use type to cache key). Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 37205
+.. date: 2020-11-14-14-34-32
+.. nonce: iDbHrw
+.. section: Library
+
+:func:`time.perf_counter()` on Windows and :func:`time.monotonic()` on macOS
+are now system-wide. Previously, they used an offset computed at startup to
+reduce the precision loss caused by the float type. Use
+:func:`time.perf_counter_ns()` and :func:`time.monotonic_ns()` added in
+Python 3.7 to avoid this precision loss.
+
+..
+
+.. bpo: 42318
+.. date: 2020-11-14-13-46-27
+.. nonce: wYAcBD
+.. section: Library
+
+Fixed support of non-BMP characters in :mod:`tkinter` on macOS.
+
+..
+
+.. bpo: 42350
+.. date: 2020-11-13-18-53-50
+.. nonce: rsql7V
+.. section: Library
+
+Fix the :class:`threading.Thread` class at fork: do nothing if the thread is
+already stopped (ex: fork called at Python exit). Previously, an error was
+logged in the child process.
+
+..
+
+.. bpo: 42333
+.. date: 2020-11-12-18-21-15
+.. nonce: J9vFmV
+.. section: Library
+
+Port _ssl extension module to heap types.
+
+..
+
+.. bpo: 42014
+.. date: 2020-11-10-15-40-56
+.. nonce: ShM37l
+.. section: Library
+
+The ``onerror`` callback from ``shutil.rmtree`` now receives correct
+function when ``os.open`` fails.
+
+..
+
+.. bpo: 42237
+.. date: 2020-11-10-14-27-49
+.. nonce: F363jO
+.. section: Library
+
+Fix `os.sendfile()` on illumos.
+
+..
+
+.. bpo: 42308
+.. date: 2020-11-10-12-09-13
+.. nonce: yaJHH9
+.. section: Library
+
+Add :data:`threading.__excepthook__` to allow retrieving the original value
+of :func:`threading.excepthook` in case it is set to a broken or a different
+value. Patch by Mario Corchero.
+
+..
+
+.. bpo: 42131
+.. date: 2020-11-06-18-20-47
+.. nonce: l2rjjG
+.. section: Library
+
+Implement PEP 451/spec methods on zipimport.zipimporter: find_spec(),
+create_module(), and exec_module().
+
+This also allows for the documented deprecation of find_loader(),
+find_module(), and load_module().
+
+..
+
+.. bpo: 41877
+.. date: 2020-11-05-16-00-03
+.. nonce: FHbngM
+.. section: Library
+
+Mock objects which are not unsafe will now raise an AttributeError if an
+attribute with the prefix asert, aseert, or assrt is accessed, in addition
+to this already happening for the prefixes assert or assret.
+
+..
+
+.. bpo: 42264
+.. date: 2020-11-05-13-32-41
+.. nonce: r4KYUU
+.. section: Library
+
+``sqlite3.OptimizedUnicode`` has been undocumented and obsolete since Python
+3.3, when it was made an alias to :class:`str`. It is now deprecated,
+scheduled for removal in Python 3.12.
+
+..
+
+.. bpo: 42251
+.. date: 2020-11-03-14-15-35
+.. nonce: 6TC32V
+.. section: Library
+
+Added :func:`threading.gettrace` and :func:`threading.getprofile` to
+retrieve the functions set by :func:`threading.settrace` and
+:func:`threading.setprofile` respectively. Patch by Mario Corchero.
+
+..
+
+.. bpo: 42249
+.. date: 2020-11-03-09-22-56
+.. nonce: vfNO2u
+.. section: Library
+
+Fixed writing binary Plist files larger than 4 GiB.
+
+..
+
+.. bpo: 42236
+.. date: 2020-11-02-23-05-17
+.. nonce: aJ6ZBR
+.. section: Library
+
+On Unix, the :func:`os.device_encoding` function now returns ``'UTF-8'``
+rather than the device encoding if the :ref:`Python UTF-8 Mode <utf8-mode>`
+is enabled.
+
+..
+
+.. bpo: 41754
+.. date: 2020-11-01-15-07-20
+.. nonce: DraSZh
+.. section: Library
+
+webbrowser: Ignore *NotADirectoryError* when calling ``xdg-settings``.
+
+..
+
+.. bpo: 42183
+.. date: 2020-10-29-11-17-35
+.. nonce: 50ZcIi
+.. section: Library
+
+Fix a stack overflow error for asyncio Task or Future repr().
+
+The overflow occurs under some circumstances when a Task or Future
+recursively returns itself.
+
+..
+
+.. bpo: 42140
+.. date: 2020-10-24-04-02-36
+.. nonce: miLqvb
+.. section: Library
+
+Improve asyncio.wait function to create the futures set just one time.
+
+..
+
+.. bpo: 42133
+.. date: 2020-10-23-15-47-47
+.. nonce: BzizYV
+.. section: Library
+
+Update various modules in the stdlib to fall back on `__spec__.loader` when
+`__loader__` isn't defined on a module.
+
+..
+
+.. bpo: 26131
+.. date: 2020-10-22-17-26-35
+.. nonce: CAsI3O
+.. section: Library
+
+The `load_module()` methods found in importlib now trigger a
+DeprecationWarning.
+
+..
+
+.. bpo: 39825
+.. date: 2020-10-20-08-28-26
+.. nonce: n6KnG0
+.. section: Library
+
+Windows: Change ``sysconfig.get_config_var('EXT_SUFFIX')`` to the expected
+full ``platform_tag.extension`` format. Previously it was hard-coded to
+``.pyd``, now it is compatible with ``distutils.sysconfig`` and will result
+in something like ``.cp38-win_amd64.pyd``. This brings windows into
+conformance with the other platforms.
+
+..
+
+.. bpo: 26389
+.. date: 2020-10-08-23-51-55
+.. nonce: uga44e
+.. section: Library
+
+The :func:`traceback.format_exception`,
+:func:`traceback.format_exception_only`, and
+:func:`traceback.print_exception` functions can now take an exception object
+as a positional-only argument.
+
+..
+
+.. bpo: 41889
+.. date: 2020-10-01-16-17-11
+.. nonce: qLkNh8
+.. section: Library
+
+Enum: fix regression involving inheriting a multiply inherited enum
+
+..
+
+.. bpo: 41861
+.. date: 2020-10-01-15-44-52
+.. nonce: YTqJ7z
+.. section: Library
+
+Convert :mod:`sqlite3` to use heap types (PEP 384). Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 40624
+.. date: 2020-09-08-03-19-04
+.. nonce: 0-gYfx
+.. section: Library
+
+Added support for the XPath ``!=`` operator in xml.etree
+
+..
+
+.. bpo: 28850
+.. date: 2020-09-06-21-55-44
+.. nonce: HJNggD
+.. section: Library
+
+Fix :meth:`pprint.PrettyPrinter.format` overrides being ignored for contents
+of small containers. The :func:`pprint._safe_repr` function was removed.
+
+..
+
+.. bpo: 41625
+.. date: 2020-08-24-16-59-04
+.. nonce: Cc967V
+.. section: Library
+
+Expose the :c:func:`splice` as :func:`os.splice` in the :mod:`os` module.
+Patch by Pablo Galindo
+
+..
+
+.. bpo: 34215
+.. date: 2020-08-19-20-17-51
+.. nonce: _Cv8c-
+.. section: Library
+
+Clarify the error message for :exc:`asyncio.IncompleteReadError` when
+``expected`` is ``None``.
+
+..
+
+.. bpo: 41543
+.. date: 2020-08-14-00-39-04
+.. nonce: RpcRjb
+.. section: Library
+
+Add async context manager support for contextlib.nullcontext.
+
+..
+
+.. bpo: 21041
+.. date: 2020-08-10-15-06-55
+.. nonce: cYz1eL
+.. section: Library
+
+:attr:`pathlib.PurePath.parents` now supports negative indexing. Patch
+contributed by Yaroslav Pankovych.
+
+..
+
+.. bpo: 41332
+.. date: 2020-07-18-17-39-28
+.. nonce: QRGmA5
+.. section: Library
+
+Added missing connect_accepted_socket() method to
+``asyncio.AbstractEventLoop``.
+
+..
+
+.. bpo: 12800
+.. date: 2020-07-09-11-32-28
+.. nonce: fNgWwx
+.. section: Library
+
+Extracting a symlink from a tarball should succeed and overwrite the symlink
+if it already exists. The fix is to remove the existing file or symlink
+before extraction. Based on patch by Chris AtLee, Jeffrey Kintscher, and
+Senthil Kumaran.
+
+..
+
+.. bpo: 40968
+.. date: 2020-06-18-11-35-16
+.. nonce: R8Edbv
+.. section: Library
+
+:mod:`urllib.request` and :mod:`http.client` now send ``http/1.1`` ALPN
+extension during TLS handshake when no custom context is supplied.
+
+..
+
+.. bpo: 41001
+.. date: 2020-06-17-12-24-26
+.. nonce: 5mi7b0
+.. section: Library
+
+Add func:`os.eventfd` to provide a low level interface for Linux's event
+notification file descriptor.
+
+..
+
+.. bpo: 40816
+.. date: 2020-05-29-15-25-41
+.. nonce: w61Pob
+.. section: Library
+
+Add AsyncContextDecorator to contextlib to support async context manager as
+a decorator.
+
+..
+
+.. bpo: 40550
+.. date: 2020-05-08-21-30-54
+.. nonce: i7GWkb
+.. section: Library
+
+Fix time-of-check/time-of-action issue in subprocess.Popen.send_signal.
+
+..
+
+.. bpo: 39411
+.. date: 2020-01-21-16-38-25
+.. nonce: 9uHFqT
+.. section: Library
+
+Add an ``is_async`` identifier to :mod:`pyclbr`'s ``Function`` objects.
+Patch by Batuhan Taskaya
+
+..
+
+.. bpo: 35498
+.. date: 2018-12-14-13-29-17
+.. nonce: LEJHl7
+.. section: Library
+
+Add slice support to :attr:`pathlib.PurePath.parents`.
+
+..
+
+.. bpo: 42238
+.. date: 2020-11-24-22-54-49
+.. nonce: 62EOTu
+.. section: Documentation
+
+Tentative to deprecate ``make suspicious`` by first removing it from the CI
+and documentation builds, but keeping it around for manual uses.
+
+..
+
+.. bpo: 42153
+.. date: 2020-11-15-13-46-31
+.. nonce: KjBhx3
+.. section: Documentation
+
+Fix the URL for the IMAP protocol documents.
+
+..
+
+.. bpo: 41028
+.. date: 2020-06-18-23-37-03
+.. nonce: vM8bC8
+.. section: Documentation
+
+Language and version switchers, previously maintained in every cpython
+branches, are now handled by docsbuild-script.
+
+..
+
+.. bpo: 41473
+.. date: 2020-12-04-11-47-09
+.. nonce: W_updK
+.. section: Tests
+
+Re-enable test_gdb on gdb 9.2 and newer:
+https://bugzilla.redhat.com/show_bug.cgi?id=1866884 bug is fixed in gdb
+10.1.
+
+..
+
+.. bpo: 42553
+.. date: 2020-12-03-13-32-44
+.. nonce: 2TRE2N
+.. section: Tests
+
+Fix ``test_asyncio.test_call_later()`` race condition: don't measure asyncio
+performance in the ``call_later()`` unit test. The test failed randomly on
+the CI.
+
+..
+
+.. bpo: 31904
+.. date: 2020-12-01-15-51-19
+.. nonce: iwetj4
+.. section: Tests
+
+Fix test_netrc on VxWorks: create temporary directories using temp_cwd().
+
+..
+
+.. bpo: 31904
+.. date: 2020-11-26-11-13-13
+.. nonce: ay4g89
+.. section: Tests
+
+skip test_getaddrinfo_ipv6_scopeid_symbolic and
+test_getnameinfo_ipv6_scopeid_symbolic on VxWorks
+
+..
+
+.. bpo: 31904
+.. date: 2020-11-25-17-00-53
+.. nonce: ue4hd9
+.. section: Tests
+
+skip test_test of test_mailcap on VxWorks
+
+..
+
+.. bpo: 31904
+.. date: 2020-11-24-17-26-41
+.. nonce: eug834
+.. section: Tests
+
+add shell requirement for test_pipes
+
+..
+
+.. bpo: 31904
+.. date: 2020-11-23-11-11-29
+.. nonce: V3sUZk
+.. section: Tests
+
+skip some tests related to fifo on VxWorks
+
+..
+
+.. bpo: 31904
+.. date: 2020-11-20-15-07-18
+.. nonce: EBJXjJ
+.. section: Tests
+
+Fix test_doctest.py failures for VxWorks.
+
+..
+
+.. bpo: 40754
+.. date: 2020-11-13-21-51-34
+.. nonce: Ekoxkg
+.. section: Tests
+
+Include ``_testinternalcapi`` module in Windows installer for test suite
+
+..
+
+.. bpo: 41561
+.. date: 2020-09-18-16-14-03
+.. nonce: uPnwrW
+.. section: Tests
+
+test_ssl: skip test_min_max_version_mismatch when TLS 1.0 is not available
+
+..
+
+.. bpo: 31904
+.. date: 2020-05-20-17-28-46
+.. nonce: yt83Ge
+.. section: Tests
+
+Fix os module failures for VxWorks RTOS.
+
+..
+
+.. bpo: 31904
+.. date: 2020-05-20-14-28-48
+.. nonce: yJik6k
+.. section: Tests
+
+Fix fifo test cases for VxWorks RTOS.
+
+..
+
+.. bpo: 31904
+.. date: 2020-11-19-17-01-50
+.. nonce: 894dk2
+.. section: Build
+
+remove libnet dependency from detect_socket() for VxWorks
+
+..
+
+.. bpo: 42398
+.. date: 2020-11-18-11-58-44
+.. nonce: Yt5wO8
+.. section: Build
+
+Fix a race condition in "make regen-all" when make -jN option is used to run
+jobs in parallel. The clinic.py script now only use atomic write to write
+files. Moveover, generated files are now left unchanged if the content does
+not change, to not change the file modification time.
+
+..
+
+.. bpo: 41617
+.. date: 2020-11-13-15-04-53
+.. nonce: 98_oaE
+.. section: Build
+
+Fix building ``pycore_bitutils.h`` internal header on old clang version
+without ``__builtin_bswap16()`` (ex: Xcode 4.6.3 on Mac OS X 10.7). Patch by
+Joshua Root and Victor Stinner.
+
+..
+
+.. bpo: 38823
+.. date: 2020-11-12-13-45-15
+.. nonce: C0z_Fe
+.. section: Build
+
+It is no longer possible to build the ``_ctypes`` extension module without
+:c:type:`wchar_t` type: remove ``CTYPES_UNICODE`` macro. Anyway, the
+:c:type:`wchar_t` type is required to build Python. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42087
+.. date: 2020-10-19-15-41-05
+.. nonce: 2AhRFP
+.. section: Build
+
+Support was removed for AIX 5.3 and below. See :issue:`40680`.
+
+..
+
+.. bpo: 40998
+.. date: 2020-06-17-09-05-02
+.. nonce: sgqmg9
+.. section: Build
+
+Addressed three compiler warnings found by undefined behavior sanitizer
+(ubsan).
+
+..
+
+.. bpo: 42120
+.. date: 2020-11-16-22-41-02
+.. nonce: 9scgko
+.. section: Windows
+
+Remove macro definition of ``copysign`` (to ``_copysign``) in headers.
+
+..
+
+.. bpo: 38506
+.. date: 2020-11-15-23-01-14
+.. nonce: hhdnuP
+.. section: Windows
+
+The Windows launcher now properly handles Python 3.10 when listing installed
+Python versions.
+
+..
+
+.. bpo: 42504
+.. date: 2020-12-02-15-48-40
+.. nonce: RQmMOR
+.. section: macOS
+
+Fix build on macOS Big Sur when MACOSX_DEPLOYMENT_TARGET=11
+
+..
+
+.. bpo: 41116
+.. date: 2020-11-15-16-43-45
+.. nonce: oCkbrF
+.. section: macOS
+
+Ensure distutils.unixxcompiler.find_library_file can find system provided
+libraries on macOS 11.
+
+..
+
+.. bpo: 41100
+.. date: 2020-11-01-16-40-23
+.. nonce: BApztP
+.. section: macOS
+
+Add support for macOS 11 and Apple Silicon systems.
+
+It is now possible to build "Universal 2" binaries using
+"--enable-universalsdk --with-universal-archs=universal2".
+
+Binaries build on later macOS versions can be deployed back to older
+versions (tested up to macOS 10.9), when using the correct deployment
+target. This is tested using Xcode 11 and later.
+
+..
+
+.. bpo: 42232
+.. date: 2020-11-01-15-10-28
+.. nonce: 2zI1GN
+.. section: macOS
+
+Added Darwin specific madvise options to mmap module.
+
+..
+
+.. bpo: 38443
+.. date: 2020-10-23-10-26-53
+.. nonce: vu64tl
+.. section: macOS
+
+The ``--enable-universalsdk`` and ``--with-universal-archs`` options for the
+configure script now check that the specified architectures can be used.
+
+..
+
+.. bpo: 42508
+.. date: 2020-11-30-19-46-05
+.. nonce: fE7w4M
+.. section: IDLE
+
+Keep IDLE running on macOS. Remove obsolete workaround that prevented
+running files with shortcuts when using new universal2 installers built on
+macOS 11.
+
+..
+
+.. bpo: 42426
+.. date: 2020-11-21-17-21-21
+.. nonce: kNnPoC
+.. section: IDLE
+
+Fix reporting offset of the RE error in searchengine.
+
+..
+
+.. bpo: 42415
+.. date: 2020-11-20-01-30-27
+.. nonce: CyD-va
+.. section: IDLE
+
+Get docstrings for IDLE calltips more often by using inspect.getdoc.
+
+..
+
+.. bpo: 42212
+.. date: 2020-11-20-15-11-05
+.. nonce: sjzgOf
+.. section: Tools/Demos
+
+The smelly.py script now also checks the Python dynamic library and
+extension modules, not only the Python static library. Make also the script
+more verbose: explain what it does.
+
+..
+
+.. bpo: 36310
+.. date: 2020-05-03-01-30-46
+.. nonce: xDxxwY
+.. section: Tools/Demos
+
+Allow :file:`Tools/i18n/pygettext.py` to detect calls to ``gettext`` in
+f-strings.
+
+..
+
+.. bpo: 42423
+.. date: 2020-11-21-12-27-19
+.. nonce: ByJHhY
+.. section: C API
+
+The :c:func:`PyType_FromSpecWithBases` and
+:c:func:`PyType_FromModuleAndSpec` functions now accept a single class as
+the *bases* argument.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-19-17-44-36
+.. nonce: qBZc3o
+.. section: C API
+
+Port :mod:`select` extension module to multiphase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-19-16-54-16
+.. nonce: 9tVsZt
+.. section: C API
+
+Port _posixsubprocess extension module to multiphase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-19-15-33-42
+.. nonce: 9tVsZt
+.. section: C API
+
+Port _posixshmem extension module to multiphase initialization (:pep:`489`)
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-19-12-06-43
+.. nonce: KEfZpn
+.. section: C API
+
+Port _struct extension module to multiphase initialization (:pep:`489`)
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-19-09-17-01
+.. nonce: 6F9o6L
+.. section: C API
+
+Port :mod:`spwd` extension module to multiphase initialization (:pep:`489`)
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-18-20-33-35
+.. nonce: B4ztSk
+.. section: C API
+
+Port :mod:`gc` extension module to multiphase initialization (:pep:`489`)
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-18-20-11-13
+.. nonce: fe3iRb
+.. section: C API
+
+Port _queue extension module to multiphase initialization (:pep:`489`)
+
+..
+
+.. bpo: 39573
+.. date: 2020-11-18-15-21-59
+.. nonce: VB3G2y
+.. section: C API
+
+Convert :c:func:`Py_TYPE` and :c:func:`Py_SIZE` back to macros to allow
+using them as an l-value. Many third party C extension modules rely on the
+ability of using Py_TYPE() and Py_SIZE() to set an object type and size:
+``Py_TYPE(obj) = type;`` and ``Py_SIZE(obj) = size;``.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-18-10-52-38
+.. nonce: FrWAwJ
+.. section: C API
+
+Port :mod:`symtable` extension module to multiphase initialization
+(:pep:`489`)
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-18-09-46-35
+.. nonce: SH8OIT
+.. section: C API
+
+Port :mod:`grp` and :mod:`pwd` extension modules to multiphase
+initialization (:pep:`489`)
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-18-09-16-23
+.. nonce: gkoI7Y
+.. section: C API
+
+Port _random extension module to multiphase initialization (:pep:`489`)
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-18-08-45-36
+.. nonce: VLZfiY
+.. section: C API
+
+Port _hashlib extension module to multiphase initialization (:pep:`489`)
+
+..
+
+.. bpo: 41713
+.. date: 2020-11-17-15-39-10
+.. nonce: Rq99Vc
+.. section: C API
+
+Removed the undocumented ``PyOS_InitInterrupts()`` function. Initializing
+Python already implicitly installs signal handlers: see
+:c:member:`PyConfig.install_signal_handlers`. Patch by Victor Stinner.
+
+..
+
+.. bpo: 40170
+.. date: 2020-11-13-01-40-28
+.. nonce: uh8lEf
+.. section: C API
+
+The ``Py_TRASHCAN_BEGIN`` macro no longer accesses PyTypeObject attributes,
+but now can get the condition by calling the new private
+:c:func:`_PyTrash_cond()` function which hides implementation details.
+
+..
+
+.. bpo: 42260
+.. date: 2020-11-10-14-27-39
+.. nonce: -Br3Co
+.. section: C API
+
+:c:func:`Py_GetPath`, :c:func:`Py_GetPrefix`, :c:func:`Py_GetExecPrefix`,
+:c:func:`Py_GetProgramFullPath`, :c:func:`Py_GetPythonHome` and
+:c:func:`Py_GetProgramName` functions now return ``NULL`` if called before
+:c:func:`Py_Initialize` (before Python is initialized). Use the new
+:ref:`Python Initialization Configuration API <init-config>` to get the
+:ref:`Python Path Configuration. <init-path-config>`. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 42260
+.. date: 2020-11-05-18-02-07
+.. nonce: pAeaNR
+.. section: C API
+
+The :c:func:`PyConfig_Read` function now only parses
+:c:member:`PyConfig.argv` arguments once: :c:member:`PyConfig.parse_argv` is
+set to ``2`` after arguments are parsed. Since Python arguments are
+strippped from :c:member:`PyConfig.argv`, parsing arguments twice would
+parse the application options as Python options.
+
+..
+
+.. bpo: 42262
+.. date: 2020-11-04-17-22-36
+.. nonce: fCWzBb
+.. section: C API
+
+Added :c:func:`Py_NewRef` and :c:func:`Py_XNewRef` functions to increment
+the reference count of an object and return the object. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 42260
+.. date: 2020-11-04-16-31-55
+.. nonce: CmgHtF
+.. section: C API
+
+When :c:func:`Py_Initialize` is called twice, the second call now updates
+more :mod:`sys` attributes for the configuration, rather than only
+:data:`sys.argv`. Patch by Victor Stinner.
+
+..
+
+.. bpo: 41832
+.. date: 2020-11-03-19-47-06
+.. nonce: dL1VJJ
+.. section: C API
+
+The :c:func:`PyType_FromModuleAndSpec` function now accepts NULL ``tp_doc``
+slot.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-03-11-52-27
+.. nonce: aDYJKB
+.. section: C API
+
+Added :c:func:`PyModule_AddObjectRef` function: similar to
+:c:func:`PyModule_AddObject` but don't steal a reference to the value on
+success. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42171
+.. date: 2020-10-27-21-10-14
+.. nonce: S3FWTP
+.. section: C API
+
+The :c:data:`METH_FASTCALL` calling convention is added to the limited API.
+The functions :c:func:`PyModule_AddType`,
+:c:func:`PyType_FromModuleAndSpec`, :c:func:`PyType_GetModule` and
+:c:func:`PyType_GetModuleState` are added to the limited API on Windows.
+
+..
+
+.. bpo: 42085
+.. date: 2020-10-19-15-58-16
+.. nonce: NhEf3W
+.. section: C API
+
+Add dedicated entry to PyAsyncMethods for sending values
+
+..
+
+.. bpo: 41073
+.. date: 2020-07-08-21-01-49
+.. nonce: VqQZON
+.. section: C API
+
+:c:func:`PyType_GetSlot()` can now accept static types.
+
+..
+
+.. bpo: 30459
+.. date: 2020-05-06-23-54-57
+.. nonce: N9_Jai
+.. section: C API
+
+:c:func:`PyList_SET_ITEM`, :c:func:`PyTuple_SET_ITEM` and
+:c:func:`PyCell_SET` macros can no longer be used as l-value or r-value. For
+example, ``x = PyList_SET_ITEM(a, b, c)`` and ``PyList_SET_ITEM(a, b, c) =
+x`` now fail with a compiler error. It prevents bugs like ``if
+(PyList_SET_ITEM (a, b, c) < 0) ...`` test. Patch by Zackery Spytz and
+Victor Stinner.
--- /dev/null
+.. bpo: 42814
+.. date: 2021-01-03-04-41-25
+.. nonce: sDvVbb
+.. release date: 2021-01-04
+.. section: Core and Builtins
+
+Fix undefined behavior in ``Objects/genericaliasobject.c``.
+
+..
+
+.. bpo: 42806
+.. date: 2021-01-03-00-20-38
+.. nonce: mLAobJ
+.. section: Core and Builtins
+
+Fix the column offsets for f-strings :mod:`ast` nodes surrounded by
+parentheses and for nodes that spawn multiple lines. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 40631
+.. date: 2020-12-31-20-58-22
+.. nonce: deRMCx
+.. section: Core and Builtins
+
+Fix regression where a single parenthesized starred expression was a valid
+assignment target.
+
+..
+
+.. bpo: 27794
+.. date: 2020-12-27-18-07-43
+.. nonce: sxgfGi
+.. section: Core and Builtins
+
+Improve the error message for failed writes/deletes to property objects.
+When possible, the attribute name is now shown. Patch provided by Yurii
+Karabas.
+
+..
+
+.. bpo: 42745
+.. date: 2020-12-25-23-30-58
+.. nonce: XsFoHS
+.. section: Core and Builtins
+
+Make the type attribute lookup cache per-interpreter. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 42246
+.. date: 2020-12-22-20-30-11
+.. nonce: 7BrPLg
+.. section: Core and Builtins
+
+Jumps to jumps are not eliminated when it would break PEP 626.
+
+..
+
+.. bpo: 42246
+.. date: 2020-12-16-14-44-21
+.. nonce: RtIEY7
+.. section: Core and Builtins
+
+Make sure that the ``f_lasti`` and ``f_lineno`` attributes of a frame are
+set correctly when an exception is raised or re-raised. Required for PEP
+626.
+
+..
+
+.. bpo: 32381
+.. date: 2020-12-15-18-43-43
+.. nonce: 3tIofL
+.. section: Core and Builtins
+
+The coding cookie (ex: ``# coding: latin1``) is now ignored in the command
+passed to the :option:`-c` command line option. Patch by Victor Stinner.
+
+..
+
+.. bpo: 30858
+.. date: 2020-12-13-15-23-09
+.. nonce: -f9G4z
+.. section: Core and Builtins
+
+Improve error location in expressions that contain assignments. Patch by
+Pablo Galindo and Lysandros Nikolaou.
+
+..
+
+.. bpo: 42615
+.. date: 2020-12-10-17-06-52
+.. nonce: Je6Q-r
+.. section: Core and Builtins
+
+Remove jump commands made redundant by the deletion of unreachable bytecode
+blocks
+
+..
+
+.. bpo: 42639
+.. date: 2020-12-09-01-55-10
+.. nonce: 5pI5HG
+.. section: Core and Builtins
+
+Make the :mod:`atexit` module state per-interpreter. It is now safe have
+more than one :mod:`atexit` module instance. Patch by Dong-hee Na and Victor
+Stinner.
+
+..
+
+.. bpo: 32381
+.. date: 2020-12-04-17-17-44
+.. nonce: NY5t2S
+.. section: Core and Builtins
+
+Fix encoding name when running a ``.pyc`` file on Windows:
+:c:func:`PyRun_SimpleFileExFlags()` now uses the correct encoding to decode
+the filename.
+
+..
+
+.. bpo: 42195
+.. date: 2020-11-20-00-57-47
+.. nonce: HeqcpS
+.. section: Core and Builtins
+
+The ``__args__`` of the parameterized generics for :data:`typing.Callable`
+and :class:`collections.abc.Callable` are now consistent. The ``__args__``
+for :class:`collections.abc.Callable` are now flattened while
+:data:`typing.Callable`'s have not changed. To allow this change,
+:class:`types.GenericAlias` can now be subclassed and
+``collections.abc.Callable``'s ``__class_getitem__`` will now return a
+subclass of ``types.GenericAlias``. Tests for typing were also updated to
+not subclass things like ``Callable[..., T]`` as that is not a valid base
+class. Finally, both ``Callable``\ s no longer validate their ``argtypes``,
+in ``Callable[[argtypes], resulttype]`` to prepare for :pep:`612`. Patch by
+Ken Jin.
+
+..
+
+.. bpo: 40137
+.. date: 2020-11-19-23-12-57
+.. nonce: bihl9O
+.. section: Core and Builtins
+
+Convert functools module to use :c:func:`PyType_FromModuleAndSpec`.
+
+..
+
+.. bpo: 40077
+.. date: 2020-11-03-13-46-10
+.. nonce: NfAIdj
+.. section: Core and Builtins
+
+Convert :mod:`array` to use heap types, and establish module state for
+these.
+
+..
+
+.. bpo: 42008
+.. date: 2020-10-12-14-51-59
+.. nonce: ijWw2I
+.. section: Core and Builtins
+
+Fix _random.Random() seeding.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-09-12-19-21-52
+.. nonce: F2kDrU
+.. section: Core and Builtins
+
+Port the :mod:`pyexpat` extension module to multi-phase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 40521
+.. date: 2020-05-14-02-55-39
+.. nonce: dIlXsZ
+.. section: Core and Builtins
+
+Make the Unicode dictionary of interned strings compatible with
+subinterpreters. Patch by Victor Stinner.
+
+..
+
+.. bpo: 39465
+.. date: 2020-05-13-18-50-27
+.. nonce: j7nl6A
+.. section: Core and Builtins
+
+Make :c:func:`_PyUnicode_FromId` function compatible with subinterpreters.
+Each interpreter now has an array of identifier objects (interned strings
+decoded from UTF-8). Patch by Victor Stinner.
+
+..
+
+.. bpo: 42257
+.. date: 2020-12-31-23-05-53
+.. nonce: ALQy7B
+.. section: Library
+
+Handle empty string in variable executable in platform.libc_ver()
+
+..
+
+.. bpo: 42772
+.. date: 2020-12-30-17-16-43
+.. nonce: Xe7WFV
+.. section: Library
+
+randrange() now raises a TypeError when step is specified without a stop
+argument. Formerly, it silently ignored the step argument.
+
+..
+
+.. bpo: 42759
+.. date: 2020-12-27-22-19-26
+.. nonce: lGi_03
+.. section: Library
+
+Fixed equality comparison of :class:`tkinter.Variable` and
+:class:`tkinter.font.Font`. Objects which belong to different Tcl
+interpreters are now always different, even if they have the same name.
+
+..
+
+.. bpo: 42756
+.. date: 2020-12-27-21-22-01
+.. nonce: dHMPJ9
+.. section: Library
+
+Configure LMTP Unix-domain socket to use socket global default timeout when
+a timeout is not explicitly provided.
+
+..
+
+.. bpo: 23328
+.. date: 2020-12-27-18-47-01
+.. nonce: _xqepZ
+.. section: Library
+
+Allow / character in username, password fields on _PROXY envars.
+
+..
+
+.. bpo: 42740
+.. date: 2020-12-25-23-23-11
+.. nonce: F0rQ_E
+.. section: Library
+
+:func:`typing.get_args` and :func:`typing.get_origin` now support :pep:`604`
+union types and :pep:`612` additions to ``Callable``.
+
+..
+
+.. bpo: 42655
+.. date: 2020-12-25-12-32-47
+.. nonce: W5ytpV
+.. section: Library
+
+:mod:`subprocess` *extra_groups* is now correctly passed into setgroups()
+system call.
+
+..
+
+.. bpo: 42727
+.. date: 2020-12-23-19-43-06
+.. nonce: WH3ODh
+.. section: Library
+
+``EnumMeta.__prepare__`` now accepts ``**kwds`` to properly support
+``__init_subclass__``
+
+..
+
+.. bpo: 38308
+.. date: 2020-12-23-15-16-12
+.. nonce: lB4Sv0
+.. section: Library
+
+Add optional *weights* to *statistics.harmonic_mean()*.
+
+..
+
+.. bpo: 42721
+.. date: 2020-12-22-22-47-22
+.. nonce: I5Ai5L
+.. section: Library
+
+When simple query dialogs (:mod:`tkinter.simpledialog`), message boxes
+(:mod:`tkinter.messagebox`) or color choose dialog
+(:mod:`tkinter.colorchooser`) are created without arguments *master* and
+*parent*, and the default root window is not yet created, and
+:func:`~tkinter.NoDefaultRoot` was not called, a new temporal hidden root
+window will be created automatically. It will not be set as the default root
+window and will be destroyed right after closing the dialog window. It will
+help to use these simple dialog windows in programs which do not need other
+GUI.
+
+..
+
+.. bpo: 25246
+.. date: 2020-12-22-13-16-43
+.. nonce: GhhCTl
+.. section: Library
+
+Optimized :meth:`collections.deque.remove`.
+
+..
+
+.. bpo: 35728
+.. date: 2020-12-21-23-34-57
+.. nonce: 9m-azF
+.. section: Library
+
+Added a root parameter to :func:`tkinter.font.nametofont`.
+
+..
+
+.. bpo: 15303
+.. date: 2020-12-21-22-59-26
+.. nonce: zozVrq
+.. section: Library
+
+:mod:`tkinter` supports now widgets with boolean value False.
+
+..
+
+.. bpo: 42681
+.. date: 2020-12-20-22-50-15
+.. nonce: lDO6jb
+.. section: Library
+
+Fixed range checks for color and pair numbers in :mod:`curses`.
+
+..
+
+.. bpo: 42685
+.. date: 2020-12-19-17-32-43
+.. nonce: kwZlwp
+.. section: Library
+
+Improved placing of simple query windows in Tkinter (such as
+:func:`tkinter.simpledialog.askinteger`). They are now centered at the
+center of the parent window if it is specified and shown, otherwise at the
+center of the screen.
+
+..
+
+.. bpo: 9694
+.. date: 2020-12-19-12-33-38
+.. nonce: CkKK9V
+.. section: Library
+
+Argparse help no longer uses the confusing phrase, "optional arguments". It
+uses "options" instead.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-12-16-23-28-52
+.. nonce: Quy3zn
+.. section: Library
+
+Port the :mod:`_thread` extension module to the multiphase initialization
+API (:pep:`489`) and convert its static types to heap types.
+
+..
+
+.. bpo: 37961
+.. date: 2020-12-16-16-16-33
+.. nonce: jrESEq
+.. section: Library
+
+Fix crash in :func:`tracemalloc.Traceback.__repr__` (regressed in Python
+3.9).
+
+..
+
+.. bpo: 42630
+.. date: 2020-12-15-17-51-27
+.. nonce: jf4jBl
+.. section: Library
+
+:mod:`tkinter` functions and constructors which need a default root window
+raise now :exc:`RuntimeError` with descriptive message instead of obscure
+:exc:`AttributeError` or :exc:`NameError` if it is not created yet or cannot
+be created automatically.
+
+..
+
+.. bpo: 42639
+.. date: 2020-12-15-15-14-29
+.. nonce: uJ3h8I
+.. section: Library
+
+:func:`atexit._run_exitfuncs` now logs callback exceptions using
+:data:`sys.unraisablehook`, rather than logging them directly into
+:data:`sys.stderr` and raise the last exception.
+
+..
+
+.. bpo: 42644
+.. date: 2020-12-15-10-00-04
+.. nonce: XgLCNx
+.. section: Library
+
+``logging.disable`` will now validate the types and value of its parameter.
+It also now accepts strings representing the levels (as does
+``loging.setLevel``) instead of only the numerical values.
+
+..
+
+.. bpo: 42639
+.. date: 2020-12-14-22-31-22
+.. nonce: 5Z3iWX
+.. section: Library
+
+At Python exit, if a callback registered with :func:`atexit.register` fails,
+its exception is now logged. Previously, only some exceptions were logged,
+and the last exception was always silently ignored.
+
+..
+
+.. bpo: 36541
+.. date: 2020-12-14-08-23-57
+.. nonce: qdEtZv
+.. section: Library
+
+Fixed lib2to3.pgen2 to be able to parse PEP-570 positional only argument
+syntax.
+
+..
+
+.. bpo: 42382
+.. date: 2020-12-13-22-05-35
+.. nonce: 2YtKo5
+.. section: Library
+
+In ``importlib.metadata``: - ``EntryPoint`` objects now expose a ``.dist``
+object referencing the ``Distribution`` when constructed from a
+``Distribution``. - Add support for package discovery under package
+normalization rules. - The object returned by ``metadata()`` now has a
+formally defined protocol called ``PackageMetadata`` with declared support
+for the ``.get_all()`` method. - Synced with importlib_metadata 3.3.
+
+..
+
+.. bpo: 41877
+.. date: 2020-12-10-19-49-52
+.. nonce: wiVlPc
+.. section: Library
+
+A check is added against misspellings of autospect, auto_spec and set_spec
+being passed as arguments to patch, patch.object and create_autospec.
+
+..
+
+.. bpo: 39717
+.. date: 2020-12-10-18-36-52
+.. nonce: sK2u0w
+.. section: Library
+
+[tarfile] update nested exception raising to use ``from None`` or ``from e``
+
+..
+
+.. bpo: 41877
+.. date: 2020-12-10-09-24-44
+.. nonce: iJSCvM
+.. section: Library
+
+AttributeError for suspected misspellings of assertions on mocks are now
+pointing out that the cause are misspelled assertions and also what to do if
+the misspelling is actually an intended attribute name. The unittest.mock
+document is also updated to reflect the current set of recognised
+misspellings.
+
+..
+
+.. bpo: 41559
+.. date: 2020-12-10-00-09-40
+.. nonce: 1l4yjP
+.. section: Library
+
+Implemented :pep:`612`: added ``ParamSpec`` and ``Concatenate`` to
+:mod:`typing`. Patch by Ken Jin.
+
+..
+
+.. bpo: 42385
+.. date: 2020-12-09-19-45-32
+.. nonce: boGbjo
+.. section: Library
+
+StrEnum: fix _generate_next_value_ to return a str
+
+..
+
+.. bpo: 31904
+.. date: 2020-12-09-15-23-28
+.. nonce: g3k5k3
+.. section: Library
+
+Define THREAD_STACK_SIZE for VxWorks.
+
+..
+
+.. bpo: 34750
+.. date: 2020-12-09-14-15-48
+.. nonce: x8TASR
+.. section: Library
+
+[Enum] `_EnumDict.update()` is now supported
+
+..
+
+.. bpo: 42517
+.. date: 2020-12-09-10-59-16
+.. nonce: FKEVcZ
+.. section: Library
+
+Enum: private names do not become members / do not generate errors -- they
+remain normal attributes
+
+..
+
+.. bpo: 42678
+.. date: 2020-12-08-22-43-35
+.. nonce: ba9ktU
+.. section: Library
+
+``Enum``: call ``__init_subclass__`` after members have been added
+
+..
+
+.. bpo: 28964
+.. date: 2020-12-07-13-21-00
+.. nonce: UTQikc
+.. section: Library
+
+:func:`ast.literal_eval` adds line number information (if available) in
+error message for malformed nodes.
+
+..
+
+.. bpo: 42470
+.. date: 2020-12-06-12-00-00
+.. nonce: iqtC4L
+.. section: Library
+
+:func:`random.sample` no longer warns on a sequence which is also a set.
+
+..
+
+.. bpo: 31904
+.. date: 2020-11-27-18-09-59
+.. nonce: g8k43d
+.. section: Library
+
+:func:`posixpath.expanduser` returns the input *path* unchanged if user home
+directory is None on VxWorks.
+
+..
+
+.. bpo: 42388
+.. date: 2020-11-22-11-22-28
+.. nonce: LMgM6B
+.. section: Library
+
+Fix subprocess.check_output(..., input=None) behavior when text=True to be
+consistent with that of the documentation and universal_newlines=True.
+
+..
+
+.. bpo: 34463
+.. date: 2020-11-20-19-00-27
+.. nonce: aJcm56
+.. section: Library
+
+Fixed discrepancy between :mod:`traceback` and the interpreter in formatting
+of SyntaxError with lineno not set (:mod:`traceback` was changed to match
+interpreter).
+
+..
+
+.. bpo: 42393
+.. date: 2020-11-17-22-06-15
+.. nonce: BB0oXc
+.. section: Library
+
+Raise :exc:`OverflowError` instead of silent truncation in
+:meth:`socket.ntohs` and :meth:`socket.htons`. Silent truncation was
+deprecated in Python 3.7. Patch by Erlend E. Aasland
+
+..
+
+.. bpo: 42222
+.. date: 2020-10-31-10-28-32
+.. nonce: Cfl1eR
+.. section: Library
+
+Harmonized :func:`random.randrange` argument handling to match :func:`range`.
+
+* The integer test and conversion in ``randrange()`` now uses
+ :func:`operator.index`.
+* Non-integer arguments to ``randrange()`` are deprecated.
+* The ``ValueError`` is deprecated in favor of a ``TypeError``.
+* It now runs a little faster than before.
+
+(Contributed by Raymond Hettinger and Serhiy Storchaka.)
+
+..
+
+.. bpo: 42163
+.. date: 2020-10-29-09-22-56
+.. nonce: O4VcCY
+.. section: Library
+
+Restore compatibility for ``uname_result`` around deepcopy and _replace.
+
+..
+
+.. bpo: 42090
+.. date: 2020-10-25-14-48-57
+.. nonce: Ubuc0j
+.. section: Library
+
+``zipfile.Path.joinpath`` now accepts arbitrary arguments, same as
+``pathlib.Path.joinpath``.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-10-20-23-28-55
+.. nonce: Iyka3r
+.. section: Library
+
+Port the _csv module to the multi-phase initialization API (:pep:`489`).
+
+..
+
+.. bpo: 42059
+.. date: 2020-10-17-12-42-08
+.. nonce: ZGMZ3D
+.. section: Library
+
+:class:`typing.TypedDict` types created using the alternative call-style
+syntax now correctly respect the ``total`` keyword argument when setting
+their ``__required_keys__`` and ``__optional_keys__`` class attributes.
+
+..
+
+.. bpo: 41960
+.. date: 2020-10-06-23-59-20
+.. nonce: icQ7Xd
+.. section: Library
+
+Add ``globalns`` and ``localns`` parameters to the :func:`inspect.signature`
+and :meth:`inspect.Signature.from_callable`.
+
+..
+
+.. bpo: 41907
+.. date: 2020-10-02-10-19-49
+.. nonce: wiIEsz
+.. section: Library
+
+fix ``format()`` behavior for ``IntFlag``
+
+..
+
+.. bpo: 41891
+.. date: 2020-09-30-13-35-29
+.. nonce: pNAeYI
+.. section: Library
+
+Ensure asyncio.wait_for waits for task completion
+
+..
+
+.. bpo: 24792
+.. date: 2020-09-11-16-07-00
+.. nonce: Z-ARra
+.. section: Library
+
+Fixed bug where :mod:`zipimporter` sometimes reports an incorrect cause of
+import errors.
+
+..
+
+.. bpo: 31904
+.. date: 2020-08-11-17-44-07
+.. nonce: cb13ea
+.. section: Library
+
+Fix site and sysconfig modules for VxWorks RTOS which has no home
+directories.
+
+..
+
+.. bpo: 41462
+.. date: 2020-08-03-17-54-32
+.. nonce: ek38d_
+.. section: Library
+
+Add :func:`os.set_blocking()` support for VxWorks RTOS.
+
+..
+
+.. bpo: 40219
+.. date: 2020-07-13-19-43-11
+.. nonce: MUoJEP
+.. section: Library
+
+Lowered :class:`tkinter.ttk.LabeledScale` dummy widget to prevent hiding
+part of the content label.
+
+..
+
+.. bpo: 37193
+.. date: 2020-06-12-21-23-20
+.. nonce: wJximU
+.. section: Library
+
+Fixed memory leak in ``socketserver.ThreadingMixIn`` introduced in Python
+3.7.
+
+..
+
+.. bpo: 39068
+.. date: 2019-12-16-17-55-31
+.. nonce: Ti3f9P
+.. section: Library
+
+Fix initialization race condition in :func:`a85encode` and :func:`b85encode`
+in :mod:`base64`. Patch by Brandon Stansbury.
+
+..
+
+.. bpo: 17140
+.. date: 2020-12-16-21-06-16
+.. nonce: 1leSEg
+.. section: Documentation
+
+Add documentation for the :class:`multiprocessing.pool.ThreadPool` class.
+
+..
+
+.. bpo: 34398
+.. date: 2019-03-04-18-51-21
+.. nonce: YedUqW
+.. section: Documentation
+
+Prominently feature listings from the glossary in documentation search
+results. Patch by Ammar Askar.
+
+..
+
+.. bpo: 42794
+.. date: 2021-01-01-08-52-36
+.. nonce: -7-XGz
+.. section: Tests
+
+Update test_nntplib to use official group name of news.aioe.org for testing.
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 31904
+.. date: 2020-12-17-15-42-44
+.. nonce: d8g3l0d5
+.. section: Tests
+
+Skip some asyncio tests on VxWorks.
+
+..
+
+.. bpo: 42641
+.. date: 2020-12-15-17-38-04
+.. nonce: uzwlF_
+.. section: Tests
+
+Enhance ``test_select.test_select()``: it now takes 500 milliseconds rather than 10
+seconds. Use Python rather than a shell to make the test more portable.
+
+..
+
+.. bpo: 31904
+.. date: 2020-12-09-15-23-28
+.. nonce: ghj38d
+.. section: Tests
+
+Skip some tests in _test_all_chown_common() on VxWorks.
+
+..
+
+.. bpo: 42199
+.. date: 2020-10-29-21-26-46
+.. nonce: KksGCV
+.. section: Tests
+
+Fix bytecode helper assertNotInBytecode.
+
+..
+
+.. bpo: 41443
+.. date: 2020-07-30-18-43-05
+.. nonce: 834gyg
+.. section: Tests
+
+Add more attribute checking in test_posix.py
+
+..
+
+.. bpo: 31904
+.. date: 2020-07-30-18-06-15
+.. nonce: y3d8dk
+.. section: Tests
+
+Disable os.popen and impacted tests on VxWorks
+
+..
+
+.. bpo: 41439
+.. date: 2020-07-30-14-08-58
+.. nonce: yhteoi
+.. section: Tests
+
+Port test_ssl and test_uuid to VxWorks RTOS.
+
+..
+
+.. bpo: 42692
+.. date: 2021-01-04-05-07-30
+.. nonce: OO11SN
+.. section: Build
+
+Fix __builtin_available check on older compilers. Patch by Joshua Root.
+
+..
+
+.. bpo: 27640
+.. date: 2020-12-22-17-57-04
+.. nonce: j3a8r0
+.. section: Build
+
+Added ``--disable-test-modules`` option to the ``configure`` script: don't
+build nor install test modules. Patch by Xavier de Gaye, Thomas Petazzoni
+and Peixing Xin.
+
+..
+
+.. bpo: 42604
+.. date: 2020-12-20-02-35-28
+.. nonce: gRd89w
+.. section: Build
+
+Now all platforms use a value for the "EXT_SUFFIX" build variable derived
+from SOABI (for instance in freeBSD, "EXT_SUFFIX" is now ".cpython-310d.so"
+instead of ".so"). Previously only Linux, Mac and VxWorks were using a value
+for "EXT_SUFFIX" that included "SOABI".
+
+..
+
+.. bpo: 42598
+.. date: 2020-12-13-14-43-10
+.. nonce: 7ipr5H
+.. section: Build
+
+Fix implicit function declarations in configure which could have resulted in
+incorrect configuration checks. Patch contributed by Joshua Root.
+
+..
+
+.. bpo: 31904
+.. date: 2020-12-11-18-04-38
+.. nonce: j3j6d8
+.. section: Build
+
+Enable libpython3.so for VxWorks.
+
+..
+
+.. bpo: 29076
+.. date: 2020-02-28-14-33-15
+.. nonce: Gtixi5
+.. section: Build
+
+Add fish shell support to macOS installer.
+
+..
+
+.. bpo: 42361
+.. date: 2021-01-04-01-17-17
+.. nonce: eolZAi
+.. section: macOS
+
+Update macOS installer build to use Tcl/Tk 8.6.11 (rc2, expected to be final
+release).
+
+..
+
+.. bpo: 41837
+.. date: 2021-01-04-00-48-08
+.. nonce: dX-unJ
+.. section: macOS
+
+Update macOS installer build to use OpenSSL 1.1.1i.
+
+..
+
+.. bpo: 42584
+.. date: 2020-12-07-11-37-35
+.. nonce: LygmqQ
+.. section: macOS
+
+Update macOS installer to use SQLite 3.34.0.
+
+..
+
+.. bpo: 42726
+.. date: 2020-12-23-19-42-11
+.. nonce: a5EkTv
+.. section: Tools/Demos
+
+Fixed Python 3 compatibility issue with gdb/libpython.py handling of
+attribute dictionaries.
+
+..
+
+.. bpo: 42613
+.. date: 2020-12-16-09-10-32
+.. nonce: J-jnm5
+.. section: Tools/Demos
+
+Fix ``freeze.py`` tool to use the prope config and library directories.
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 42591
+.. date: 2020-12-10-10-43-03
+.. nonce: CXNY8G
+.. section: C API
+
+Export the :c:func:`Py_FrozenMain` function: fix a Python 3.9.0 regression.
+Python 3.9 uses ``-fvisibility=hidden`` and the function was not exported
+explicitly and so not exported.
+
+..
+
+.. bpo: 32381
+.. date: 2020-12-09-00-35-25
+.. nonce: Je08Ny
+.. section: C API
+
+Remove the private :c:func:`_Py_fopen` function which is no longer needed.
+Use :c:func:`_Py_wfopen` or :c:func:`_Py_fopen_obj` instead. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-11-22-13-46-06
+.. nonce: -fJLzA
+.. section: C API
+
+Port :mod:`resource` extension module to module state
+
+..
+
+.. bpo: 42111
+.. date: 2020-10-21-18-43-06
+.. nonce: 9pvtrc
+.. section: C API
+
+Update the ``xxlimited`` module to be a better example of how to use the
+limited C API.
+
+..
+
+.. bpo: 40052
+.. date: 2020-03-24-09-27-10
+.. nonce: 27P2KG
+.. section: C API
+
+Fix an alignment build warning/error in function
+``PyVectorcall_Function()``. Patch by Andreas Schneider, Antoine Pitrou and
+Petr Viktorin.
--- /dev/null
+.. bpo: 42938
+.. date: 2021-01-18-09-27-31
+.. nonce: 4Zn4Mp
+.. release date: 2021-02-02
+.. section: Security
+
+Avoid static buffers when computing the repr of :class:`ctypes.c_double` and
+:class:`ctypes.c_longdouble` values.
+
+..
+
+.. bpo: 42990
+.. date: 2021-01-30-11-31-44
+.. nonce: 69h_zK
+.. section: Core and Builtins
+
+Refactor the ``PyEval_`` family of functions.
+
+* An new function ``_PyEval_Vector`` is added to simplify calls to Python from C.
+* ``_PyEval_EvalCodeWithName`` is removed
+* ``PyEval_EvalCodeEx`` is retained as part of the API, but is not used internally
+
+..
+
+.. bpo: 38631
+.. date: 2021-01-29-17-48-44
+.. nonce: jR-3kC
+.. section: Core and Builtins
+
+Replace :c:func:`Py_FatalError` calls in the compiler with regular
+:exc:`SystemError` exceptions. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42997
+.. date: 2021-01-24-20-19-55
+.. nonce: QUOPgP
+.. section: Core and Builtins
+
+Improve error message for missing ":" before blocks. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 43017
+.. date: 2021-01-24-18-02-05
+.. nonce: emEcXX
+.. section: Core and Builtins
+
+Improve error message in the parser when using un-parenthesised tuples in
+comprehensions. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 42986
+.. date: 2021-01-20-23-44-15
+.. nonce: sWoaGf
+.. section: Core and Builtins
+
+Fix parser crash when reporting syntax errors in f-string with newlines.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 40176
+.. date: 2021-01-20-22-31-01
+.. nonce: anjyWw
+.. section: Core and Builtins
+
+Syntax errors for unterminated string literals now point to the start of the
+string instead of reporting EOF/EOL.
+
+..
+
+.. bpo: 42927
+.. date: 2021-01-15-20-05-56
+.. nonce: GI-l-7
+.. section: Core and Builtins
+
+The inline cache for ``LOAD_ATTR`` now also optimizes access to attributes
+defined by ``__slots__``. This makes reading such attribute up to 30%
+faster.
+
+..
+
+.. bpo: 42864
+.. date: 2021-01-14-23-15-34
+.. nonce: QgOAQ1
+.. section: Core and Builtins
+
+Improve error messages in the parser when parentheses are not closed. Patch
+by Pablo Galindo.
+
+..
+
+.. bpo: 42924
+.. date: 2021-01-13-14-06-01
+.. nonce: _WS1Ok
+.. section: Core and Builtins
+
+Fix ``bytearray`` repetition incorrectly copying data from the start of the
+buffer, even if the data is offset within the buffer (e.g. after reassigning
+a slice at the start of the ``bytearray`` to a shorter byte string).
+
+..
+
+.. bpo: 42882
+.. date: 2021-01-11-17-58-52
+.. nonce: WfTdfg
+.. section: Core and Builtins
+
+Fix the :c:func:`_PyUnicode_FromId` function (_Py_IDENTIFIER(var) API) when
+:c:func:`Py_Initialize` / :c:func:`Py_Finalize` is called multiple times:
+preserve ``_PyRuntime.unicode_ids.next_index`` value.
+
+..
+
+.. bpo: 42827
+.. date: 2021-01-06-17-06-37
+.. nonce: jtRR0D
+.. section: Core and Builtins
+
+Fix a crash when working out the error line of a :exc:`SyntaxError` in some
+multi-line expressions.
+
+..
+
+.. bpo: 42823
+.. date: 2021-01-04-18-17-07
+.. nonce: dcSynu
+.. section: Core and Builtins
+
+frame.f_lineno is correct even if frame.f_trace is set to True
+
+..
+
+.. bpo: 37324
+.. date: 2020-12-12-20-09-12
+.. nonce: jB-9_U
+.. section: Core and Builtins
+
+Remove deprecated aliases to :ref:`collections-abstract-base-classes` from
+the :mod:`collections` module.
+
+..
+
+.. bpo: 41994
+.. date: 2020-10-10-14-16-03
+.. nonce: Xop8sV
+.. section: Core and Builtins
+
+Fixed possible leak in ``import`` when ``sys.modules`` is not a ``dict``.
+
+..
+
+.. bpo: 27772
+.. date: 2018-12-20-23-59-23
+.. nonce: idHEcj
+.. section: Core and Builtins
+
+In string formatting, preceding the *width* field by ``'0'`` no longer
+affects the default alignment for strings.
+
+..
+
+.. bpo: 43108
+.. date: 2021-02-02-20-23-31
+.. nonce: lqcCZ6
+.. section: Library
+
+Fixed a reference leak in the :mod:`curses` module. Patch by Pablo Galindo
+
+..
+
+.. bpo: 43077
+.. date: 2021-01-30-15-20-06
+.. nonce: Owk61z
+.. section: Library
+
+Update the bundled pip to 21.0.1 and setuptools to 52.0.0.
+
+..
+
+.. bpo: 41282
+.. date: 2021-01-27-20-49-32
+.. nonce: SEPdV0
+.. section: Library
+
+Deprecate ``distutils`` in documentation and add warning on import.
+
+..
+
+.. bpo: 43014
+.. date: 2021-01-24-00-37-40
+.. nonce: BVPhEr
+.. section: Library
+
+Improve performance of :mod:`tokenize` by 20-30%. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 42323
+.. date: 2021-01-20-12-10-47
+.. nonce: PONB8e
+.. section: Library
+
+Fix :func:`math.nextafter` for NaN on AIX.
+
+..
+
+.. bpo: 42955
+.. date: 2021-01-18-11-59-46
+.. nonce: CSWLC9
+.. section: Library
+
+Add :data:`sys.stdlib_module_names`, containing the list of the standard
+library module names. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42944
+.. date: 2021-01-18-10-41-44
+.. nonce: RrONvy
+.. section: Library
+
+Fix ``random.Random.sample`` when ``counts`` argument is not ``None``.
+
+..
+
+.. bpo: 42934
+.. date: 2021-01-15-11-48-00
+.. nonce: ILKoOI
+.. section: Library
+
+Use :class:`~traceback.TracebackException`'s new ``compact`` param in
+:class:`~unittest.TestResult` to reduce time and memory consumed by
+traceback formatting.
+
+..
+
+.. bpo: 42931
+.. date: 2021-01-15-00-23-50
+.. nonce: QD6U2B
+.. section: Library
+
+Add :func:`randbytes` to ``random.__all__``.
+
+..
+
+.. bpo: 38250
+.. date: 2021-01-14-15-07-16
+.. nonce: 1fvhOk
+.. section: Library
+
+[Enum] Flags consisting of a single bit are now considered canonical, and
+will be the only flags returned from listing and iterating over a Flag class
+or a Flag member. Multi-bit flags are considered aliases; they will be
+returned from lookups and operations that result in their value. Iteration
+for both Flag and Flag members is in definition order.
+
+..
+
+.. bpo: 42877
+.. date: 2021-01-13-12-55-41
+.. nonce: Fi1zEG
+.. section: Library
+
+Added the ``compact`` parameter to the constructor of
+:class:`traceback.TracebackException` to reduce time and memory for use
+cases that only need to call :func:`TracebackException.format` and
+:func:`TracebackException.format_exception_only`.
+
+..
+
+.. bpo: 42923
+.. date: 2021-01-13-12-15-13
+.. nonce: zBiNls
+.. section: Library
+
+The :c:func:`Py_FatalError` function and the :mod:`faulthandler` module now
+dump the list of extension modules on a fatal error.
+
+..
+
+.. bpo: 42848
+.. date: 2021-01-12-19-34-06
+.. nonce: 5G8oBl
+.. section: Library
+
+Removed recursion from :class:`~traceback.TracebackException` to allow it to
+handle long exception chains.
+
+..
+
+.. bpo: 42901
+.. date: 2021-01-11-17-36-59
+.. nonce: gFd-ta
+.. section: Library
+
+[Enum] move member creation from ``EnumMeta.__new__`` to
+``_proto_member.__set_name__``, allowing members to be created and visible
+in ``__init_subclass__``.
+
+..
+
+.. bpo: 42780
+.. date: 2021-01-08-15-49-20
+.. nonce: rtqi6B
+.. section: Library
+
+Fix os.set_inheritable() for O_PATH file descriptors on Linux.
+
+..
+
+.. bpo: 42866
+.. date: 2021-01-08-10-57-21
+.. nonce: Y1DnrO
+.. section: Library
+
+Fix a reference leak in the ``getcodec()`` function of CJK codecs. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 42846
+.. date: 2021-01-07-23-31-17
+.. nonce: kukDjw
+.. section: Library
+
+Convert the 6 CJK codec extension modules (_codecs_cn, _codecs_hk,
+_codecs_iso2022, _codecs_jp, _codecs_kr and _codecs_tw) to the multiphase
+initialization API (:pep:`489`). Patch by Victor Stinner.
+
+..
+
+.. bpo: 42851
+.. date: 2021-01-07-11-44-22
+.. nonce: uyQFyd
+.. section: Library
+
+remove __init_subclass__ support for Enum members
+
+..
+
+.. bpo: 42834
+.. date: 2021-01-05-23-55-24
+.. nonce: LxRnZC
+.. section: Library
+
+Make internal caches of the ``_json`` module compatible with
+subinterpreters.
+
+..
+
+.. bpo: 41748
+.. date: 2021-01-05-21-26-29
+.. nonce: KdC0w3
+.. section: Library
+
+Fix HTMLParser parsing rules for element attributes containing commas with
+spaces. Patch by Karl Dubost.
+
+..
+
+.. bpo: 40810
+.. date: 2021-01-05-00-52-30
+.. nonce: JxQqPe
+.. section: Library
+
+Require SQLite 3.7.15 or newer. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 1635741
+.. date: 2021-01-04-15-05-40
+.. nonce: EOCfZY
+.. section: Library
+
+Convert the _multibytecodec extension module (CJK codecs) to multi-phase
+initialization (:pep:`489`). Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 42802
+.. date: 2021-01-01-15-29-16
+.. nonce: Lw-bzl
+.. section: Library
+
+The distutils ``bdist_wininst`` command deprecated in Python 3.8 has been
+removed. The distutils ``bdist_wheel`` command is now recommended to
+distribute binary packages on Windows.
+
+..
+
+.. bpo: 24464
+.. date: 2020-12-30-14-56-25
+.. nonce: vbNVHe
+.. section: Library
+
+The undocumented built-in function ``sqlite3.enable_shared_cache`` is now
+deprecated, scheduled for removal in Python 3.12. Its use is strongly
+discouraged by the SQLite3 documentation. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 42384
+.. date: 2020-11-17-14-32-39
+.. nonce: 1ZnQSn
+.. section: Library
+
+Make pdb populate sys.path[0] exactly the same as regular python execution.
+
+..
+
+.. bpo: 42383
+.. date: 2020-11-17-14-30-12
+.. nonce: ubl0Y_
+.. section: Library
+
+Fix pdb: previously pdb would fail to restart the debugging target if it was
+specified using a relative path and the current directory changed.
+
+..
+
+.. bpo: 42005
+.. date: 2020-10-11-13-48-03
+.. nonce: Jq6Az-
+.. section: Library
+
+Fix CLI of :mod:`cProfile` and :mod:`profile` to catch
+:exc:`BrokenPipeError`.
+
+..
+
+.. bpo: 41604
+.. date: 2020-08-21-15-24-14
+.. nonce: rTXleO
+.. section: Library
+
+Don't decrement the reference count of the previous user_ptr when
+set_panel_userptr fails.
+
+..
+
+.. bpo: 41149
+.. date: 2020-06-28-16-13-02
+.. nonce: jiZWtJ
+.. section: Library
+
+Allow executing callables that have a boolean value of ``False`` when passed
+to :class:`Threading.thread` as the target. Patch contributed by Barney
+Stratford.
+
+..
+
+.. bpo: 38307
+.. date: 2020-03-16-03-03-21
+.. nonce: 2cmw2i
+.. section: Library
+
+Add an 'end_lineno' attribute to the Class and Function objects that appear
+in the tree returned by pyclbr functions. This and the existing 'lineno'
+attribute define the extent of class and def statements. Patch by Aviral
+Srivastava.
+
+..
+
+.. bpo: 39273
+.. date: 2020-01-13-23-37-58
+.. nonce: m5hzxV
+.. section: Library
+
+The ``BUTTON5_*`` constants are now exposed in the :mod:`curses` module if
+available.
+
+..
+
+.. bpo: 33289
+.. date: 2018-04-23-13-44-10
+.. nonce: anBnUr
+.. section: Library
+
+Correct call to :mod:`tkinter.colorchooser` to return RGB triplet of ints
+instead of floats. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 40304
+.. date: 2021-01-20-23-03-49
+.. nonce: -LK7Ps
+.. section: Documentation
+
+Fix doc for type(name, bases, dict). Patch by Boris Verkhovskiy and Éric
+Araujo.
+
+..
+
+.. bpo: 42811
+.. date: 2021-01-04-22-14-22
+.. nonce: HY2beA
+.. section: Documentation
+
+Updated importlib.utils.resolve_name() doc to use __spec__.parent instead of
+__package__. (Thanks Yair Frid.)
+
+..
+
+.. bpo: 40823
+.. date: 2020-05-30-13-39-22
+.. nonce: yB7K5w
+.. section: Tests
+
+Use :meth:`unittest.TestLoader().loadTestsFromTestCase` instead of
+:meth:`unittest.makeSuite` in :mod:`sqlite3` tests. Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 40810
+.. date: 2020-05-30-10-56-38
+.. nonce: LPqDLQ
+.. section: Tests
+
+In :mod:`sqlite3`, fix ``CheckTraceCallbackContent`` for SQLite pre 3.7.15.
+
+..
+
+.. bpo: 43031
+.. date: 2021-01-26-14-48-40
+.. nonce: 44nK9U
+.. section: Build
+
+Pass ``--timeout=$(TESTTIMEOUT)`` option to the default profile task
+``./python -m test --pgo`` command.
+
+..
+
+.. bpo: 36143
+.. date: 2021-01-18-20-52-06
+.. nonce: kgnIYo
+.. section: Build
+
+``make regen-all`` now also runs ``regen-keyword``. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42874
+.. date: 2021-01-12-10-06-50
+.. nonce: XKK61g
+.. section: Build
+
+Removed the grep -q and -E flags in the tzpath validation section of the
+configure script to better accommodate users of some platforms (specifically
+Solaris 10).
+
+..
+
+.. bpo: 31904
+.. date: 2021-01-11-23-26-00
+.. nonce: ty8f3h
+.. section: Build
+
+Add library search path by wr-cc in add_cross_compiling_paths() for VxWorks.
+
+..
+
+.. bpo: 42856
+.. date: 2021-01-07-12-51-38
+.. nonce: n3cMHV
+.. section: Build
+
+Add ``--with-wheel-pkg-dir=PATH`` option to the ``./configure`` script. If
+specified, the :mod:`ensurepip` module looks for ``setuptools`` and ``pip``
+wheel packages in this directory: if both are present, these wheel packages
+are used instead of ensurepip bundled wheel packages.
+
+Some Linux distribution packaging policies recommend against bundling
+dependencies. For example, Fedora installs wheel packages in the
+``/usr/share/python-wheels/`` directory and don't install the
+``ensurepip._bundled`` package.
+
+..
+
+.. bpo: 41837
+.. date: 2021-01-05-20-36-40
+.. nonce: bmS7vB
+.. section: Windows
+
+Updated Windows installer to include OpenSSL 1.1.1i
+
+..
+
+.. bpo: 42584
+.. date: 2020-12-07-11-40-52
+.. nonce: AsYnVX
+.. section: Windows
+
+Upgrade Windows installer to use SQLite 3.34.0.
+
+..
+
+.. bpo: 42504
+.. date: 2021-01-26-14-36-11
+.. nonce: ZxWt71
+.. section: macOS
+
+Ensure that the value of
+sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET') is always a string,
+even in when the value is parsable as an integer.
+
+..
+
+.. bpo: 43008
+.. date: 2021-01-26-18-12-17
+.. nonce: mbQUc7
+.. section: IDLE
+
+Make IDLE invoke :func:`sys.excepthook` in normal, 2-process mode. Patch by
+Ken Hilton.
+
+..
+
+.. bpo: 33065
+.. date: 2021-01-10-01-25-43
+.. nonce: zmyHYJ
+.. section: IDLE
+
+Fix problem debugging user classes with __repr__ method.
+
+..
+
+.. bpo: 23544
+.. date: 2019-11-14-23-41-07
+.. nonce: 3etemb
+.. section: IDLE
+
+Disable Debug=>Stack Viewer when user code is running or Debugger is active,
+to prevent hang or crash. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 32631
+.. date: 2019-06-30-20-31-09
+.. nonce: e7_4BG
+.. section: IDLE
+
+Finish zzdummy example extension module: make menu entries work; add
+docstrings and tests with 100% coverage.
+
+..
+
+.. bpo: 42979
+.. date: 2021-01-28-01-11-59
+.. nonce: JrGkrm
+.. section: C API
+
+When Python is built in debug mode (with C assertions), calling a type slot
+like ``sq_length`` (``__len__()`` in Python) now fails with a fatal error if
+the slot succeeded with an exception set, or failed with no exception set.
+The error message contains the slot, the type name, and the current
+exception (if an exception is set). Patch by Victor Stinner.
+
+..
+
+.. bpo: 43030
+.. date: 2021-01-27-10-27-47
+.. nonce: loDcD_
+.. section: C API
+
+Fixed a compiler warning in :c:func:`Py_UNICODE_ISSPACE()` on platforms with
+signed ``wchar_t``.
--- /dev/null
+.. bpo: 42967
+.. date: 2021-02-14-15-59-16
+.. nonce: YApqDS
+.. release date: 2021-03-01
+.. section: Security
+
+Fix web cache poisoning vulnerability by defaulting the query args separator
+to ``&``, and allowing the user to choose a custom separator.
+
+..
+
+.. bpo: 43321
+.. date: 2021-02-26-13-17-52
+.. nonce: TCS3ph
+.. section: Core and Builtins
+
+Fix ``SystemError`` raised when ``PyArg_Parse*()`` is used with ``#`` but
+without ``PY_SSIZE_T_CLEAN`` defined.
+
+..
+
+.. bpo: 36346
+.. date: 2021-02-22-19-00-00
+.. nonce: uAoni0
+.. section: Core and Builtins
+
+``PyArg_Parse*()`` functions now emits ``DeprecationWarning`` when ``u`` or
+``Z`` format is used. See :pep:`623` for detail.
+
+..
+
+.. bpo: 43277
+.. date: 2021-02-20-16-50-22
+.. nonce: FXkRXk
+.. section: Core and Builtins
+
+Add a new :c:func:`PySet_CheckExact` function to the C-API to check if an
+object is an instance of :class:`set` but not an instance of a subtype.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 42990
+.. date: 2021-02-18-15-12-30
+.. nonce: toAqBH
+.. section: Core and Builtins
+
+The :data:`types.FunctionType` constructor now inherits the current builtins
+if the *globals* dictionary has no ``"__builtins__"`` key, rather than using
+``{"None": None}`` as builtins: same behavior as :func:`eval` and
+:func:`exec` functions. Defining a function with ``def function(...): ...``
+in Python is not affected, globals cannot be overridden with this syntax: it
+also inherits the current builtins. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42990
+.. date: 2021-02-17-19-02-21
+.. nonce: SKXHiI
+.. section: Core and Builtins
+
+Functions have a new ``__builtins__`` attribute which is used to look for
+builtin symbols when a function is executed, instead of looking into
+``__globals__['__builtins__']``. Patch by Mark Shannon and Victor Stinner.
+
+..
+
+.. bpo: 43149
+.. date: 2021-02-07-03-27-14
+.. nonce: 0umPKD
+.. section: Core and Builtins
+
+Improve the error message in the parser for exception groups without
+parentheses. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 43121
+.. date: 2021-02-03-22-33-05
+.. nonce: jqcViq
+.. section: Core and Builtins
+
+Fixed an incorrect :exc:`SyntaxError` message for missing comma in literals.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 42819
+.. date: 2021-01-04-23-54-34
+.. nonce: 4KO6wU
+.. section: Core and Builtins
+
+:mod:`readline`: Explicitly disable bracketed paste in the interactive
+interpreter, even if it's set in the inputrc, is enabled by default (eg GNU
+Readline 8.1), or a user calls ``readline.read_init_file()``. The Python
+REPL has not implemented bracketed paste support. Also, bracketed mode
+writes the ``"\x1b[?2004h"`` escape sequence into stdout which causes test
+failures in applications that don't support it. It can still be explicitly
+enabled by calling ``readline.parse_and_bind("set enable-bracketed-paste
+on")``. Patch by Dustin Rodrigues.
+
+..
+
+.. bpo: 42808
+.. date: 2021-01-02-05-10-58
+.. nonce: AOxgxl
+.. section: Core and Builtins
+
+Simple calls to ``type(object)`` are now faster due to the ``vectorcall``
+calling convention. Patch by Dennis Sweeney.
+
+..
+
+.. bpo: 42217
+.. date: 2020-10-31-16-54-00
+.. nonce: GdcHe5
+.. section: Core and Builtins
+
+Make the compiler merges same co_code and co_linetable objects in a module
+like already did for co_consts.
+
+..
+
+.. bpo: 41972
+.. date: 2020-10-23-23-17-23
+.. nonce: kbAwg4
+.. section: Core and Builtins
+
+Substring search functions such as ``str1 in str2`` and ``str2.find(str1)``
+now sometimes use the "Two-Way" string comparison algorithm to avoid
+quadratic behavior on long strings.
+
+..
+
+.. bpo: 42128
+.. date: 2020-10-23-08-54-04
+.. nonce: SWmVEm
+.. section: Core and Builtins
+
+Implement :pep:`634` (structural pattern matching). Patch by Brandt Bucher.
+
+..
+
+.. bpo: 40692
+.. date: 2020-05-19-22-10-05
+.. nonce: ajEhrR
+.. section: Core and Builtins
+
+In the :class:`concurrent.futures.ProcessPoolExecutor`, validate that
+:func:`multiprocess.synchronize` is available on a given platform and rely
+on that check in the :mod:`concurrent.futures` test suite so we can run
+tests that are unrelated to :class:`ProcessPoolExecutor` on those platforms.
+
+..
+
+.. bpo: 38302
+.. date: 2019-09-28-12-23-23
+.. nonce: hsCNgX
+.. section: Core and Builtins
+
+If :func:`object.__ipow__` returns :const:`NotImplemented`, the operator
+will correctly fall back to :func:`object.__pow__` and
+:func:`object.__rpow__` as expected.
+
+..
+
+.. bpo: 43316
+.. date: 2021-02-25-09-44-36
+.. nonce: k9Gyqn
+.. section: Library
+
+The ``python -m gzip`` command line application now properly fails when
+detecting an unsupported extension. It exits with a non-zero exit code and
+prints an error message to stderr.
+
+..
+
+.. bpo: 43317
+.. date: 2021-02-25-09-08-55
+.. nonce: qrOOpB
+.. section: Library
+
+Set the chunk size for the ``gzip`` module main function to
+io.DEFAULT_BUFFER_SIZE. This is slightly faster than the 1024 bytes constant
+that was used previously.
+
+..
+
+.. bpo: 43146
+.. date: 2021-02-23-17-20-16
+.. nonce: JAFplg
+.. section: Library
+
+Handle None in single-arg versions of :func:`~traceback.print_exception` and
+:func:`~traceback.format_exception`.
+
+..
+
+.. bpo: 43260
+.. date: 2021-02-20-12-15-29
+.. nonce: 6znAas
+.. section: Library
+
+Fix TextIOWrapper can not flush internal buffer forever after very large
+text is written.
+
+..
+
+.. bpo: 43258
+.. date: 2021-02-18-23-30-52
+.. nonce: LeU-q8
+.. section: Library
+
+Prevent needless allocation of :mod:`sqlite3` aggregate function context
+when no rows match an aggregate query. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43251
+.. date: 2021-02-18-14-24-42
+.. nonce: n6WZDw
+.. section: Library
+
+Improve :mod:`sqlite3` error handling: ``sqlite3_column_name()`` failures
+now result in :exc:`MemoryError`. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 40956
+.. date: 2021-02-10-23-29-50
+.. nonce: LcAbwG
+.. section: Library
+
+Fix segfault in :meth:`sqlite3.Connection.backup` if no argument was
+provided. The regression was introduced by PR 23838. Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 43172
+.. date: 2021-02-10-06-00-53
+.. nonce: ZMCJni
+.. section: Library
+
+The readline module now passes its tests when built directly against
+libedit. Existing irreconcilable API differences remain in
+:func:`readline.get_begidx` and :func:`readline.get_endidx` behavior based
+on libreadline vs libedit use.
+
+..
+
+.. bpo: 43163
+.. date: 2021-02-08-21-13-51
+.. nonce: E2MgzH
+.. section: Library
+
+Fix a bug in :mod:`codeop` that was causing it to not ask for more input
+when multi-line snippets have unclosed parentheses. Patch by Pablo Galindo
+
+..
+
+.. bpo: 43162
+.. date: 2021-02-08-16-27-00
+.. nonce: t-W7h3
+.. section: Library
+
+deprecate unsupported ability to access enum members as attributes of other
+enum members
+
+..
+
+.. bpo: 43146
+.. date: 2021-02-06-21-21-35
+.. nonce: MHtb2v
+.. section: Library
+
+Fix recent regression in None argument handling in :mod:`~traceback` module
+functions.
+
+..
+
+.. bpo: 43102
+.. date: 2021-02-03-22-55-27
+.. nonce: TSlZ6J
+.. section: Library
+
+The namedtuple __new__ method had its __builtins__ set to None instead of an
+actual dictionary. This created problems for introspection tools.
+
+..
+
+.. bpo: 43106
+.. date: 2021-02-03-17-06-38
+.. nonce: SwcSuU
+.. section: Library
+
+Added :data:`~os.O_EVTONLY`, :data:`~os.O_FSYNC`, :data:`~os.O_SYMLINK` and
+:data:`~os.O_NOFOLLOW_ANY` for macOS. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 42960
+.. date: 2021-01-18-21-07-20
+.. nonce: a7Dote
+.. section: Library
+
+Adds :data:`resource.RLIMIT_KQUEUES` constant from FreeBSD to the
+:mod:`resource` module.
+
+..
+
+.. bpo: 42151
+.. date: 2020-10-26-18-01-09
+.. nonce: et5f7s
+.. section: Library
+
+Make the pure Python implementation of :mod:`xml.etree.ElementTree` behave
+the same as the C implementation (:mod:`_elementree`) regarding default
+attribute values (by not setting ``specified_attributes=1``).
+
+..
+
+.. bpo: 29753
+.. date: 2020-05-02-01-01-30
+.. nonce: n2M-AF
+.. section: Library
+
+In ctypes, now packed bitfields are calculated properly and the first item
+of packed bitfields is now shrank correctly.
+
+..
+
+.. bpo: 27646
+.. date: 2021-02-20-00-09-13
+.. nonce: HRsmo-
+.. section: Documentation
+
+Clarify that 'yield from <expr>' works with any iterable, not just
+iterators.
+
+..
+
+.. bpo: 36346
+.. date: 2020-06-15-10-45-45
+.. nonce: H0sS_i
+.. section: Documentation
+
+Update some deprecated unicode APIs which are documented as "will be removed
+in 4.0" to "3.12". See :pep:`623` for detail.
+
+..
+
+.. bpo: 43288
+.. date: 2021-02-21-11-11-53
+.. nonce: LfTvL-
+.. section: Tests
+
+Fix test_importlib to correctly skip Unicode file tests if the filesystem
+does not support them.
+
+..
+
+.. bpo: 43174
+.. date: 2021-02-10-14-11-53
+.. nonce: F9zwXQ
+.. section: Build
+
+Windows build now uses ``/utf-8`` compiler option.
+
+..
+
+.. bpo: 43103
+.. date: 2021-02-02-16-26-44
+.. nonce: VWeyP_
+.. section: Build
+
+Add a new configure ``--without-static-libpython`` option to not build the
+``libpythonMAJOR.MINOR.a`` static library and not install the ``python.o``
+object file.
+
+..
+
+.. bpo: 13501
+.. date: 2021-01-10-22-25-23
+.. nonce: g4L-6R
+.. section: Build
+
+The configure script can now use *libedit* instead of *readline* with the
+command line option ``--with-readline=editline``.
+
+..
+
+.. bpo: 42603
+.. date: 2020-12-08-19-25-20
+.. nonce: mXs2dB
+.. section: Build
+
+Make configure script use pkg-config to detect the location of Tcl/Tk
+headers and libraries, used to build tkinter.
+
+On macOS, a Tcl/Tk configuration provided by pkg-config will be preferred
+over Tcl/Tk frameworks installed in ``/{System/,}Library/Frameworks``. If
+both exist and the latter is preferred, the appropriate ``--with-tcltk-*``
+configuration options need to be explicitly set.
+
+..
+
+.. bpo: 39448
+.. date: 2020-01-24-12-54-22
+.. nonce: k4pv14
+.. section: Build
+
+Add the "regen-frozen" makefile target that regenerates the code for the
+frozen ``__hello__`` module.
+
+..
+
+.. bpo: 43155
+.. date: 2021-02-10-04-16-51
+.. nonce: O1tURk
+.. section: Windows
+
+:c:func:`PyCMethod_New` is now present in ``python3.lib``.
+
+..
+
+.. bpo: 41837
+.. date: 2021-02-28-22-49-46
+.. nonce: 9fqyXC
+.. section: macOS
+
+Update macOS installer build to use OpenSSL 1.1.1j.
+
+..
+
+.. bpo: 43283
+.. date: 2021-02-21-16-30-10
+.. nonce: DLBwYn
+.. section: IDLE
+
+Document why printing to IDLE's Shell is often slower than printing to a
+system terminal and that it can be made faster by pre-formatting a single
+string before printing.
+
+..
+
+.. bpo: 43278
+.. date: 2021-02-21-15-30-38
+.. nonce: DMPaWH
+.. section: C API
+
+Always put compiler and system information on the first line of the REPL
+welcome message.
+
+..
+
+.. bpo: 43270
+.. date: 2021-02-19-14-28-26
+.. nonce: UKx4XN
+.. section: C API
+
+Remove the private ``_PyErr_OCCURRED()`` macro: use the public
+:c:func:`PyErr_Occurred` function instead.
+
+..
+
+.. bpo: 35134
+.. date: 2021-02-18-18-46-42
+.. nonce: dFpEDT
+.. section: C API
+
+Move odictobject.h, parser_interface.h, picklebufobject.h, pydebug.h, and
+pyfpe.h into the cpython/ directory. They must not be included directly, as
+they are already included by Python.h: :ref:`Include Files <api-includes>`.
+
+..
+
+.. bpo: 35134
+.. date: 2021-02-17-18-51-26
+.. nonce: YoQdk8
+.. section: C API
+
+Move pyarena.h, pyctype.h, and pytime.h into the cpython/ directory. They
+must not be included directly, as they are already included by Python.h:
+:ref:`Include Files <api-includes>`.
+
+..
+
+.. bpo: 40170
+.. date: 2021-02-16-22-29-39
+.. nonce: ahHmOo
+.. section: C API
+
+:c:func:`PyExceptionClass_Name` is now always declared as a function, in
+order to hide implementation details. The macro accessed
+:c:member:`PyTypeObject.tp_name` directly. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43239
+.. date: 2021-02-16-17-30-16
+.. nonce: FQqOGz
+.. section: C API
+
+The :c:func:`PyCFunction_New` function is now exported in the ABI when
+compiled with ``-fvisibility=hidden``.
+
+..
+
+.. bpo: 40170
+.. date: 2021-02-15-15-06-43
+.. nonce: ZYeSii
+.. section: C API
+
+:c:func:`PyIter_Check` is now always declared as a function, in order to
+hide implementation details. The macro accessed
+:c:member:`PyTypeObject.tp_iternext` directly. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 40170
+.. date: 2021-02-15-13-41-14
+.. nonce: r2FAtl
+.. section: C API
+
+Convert :c:func:`PyDescr_IsData` macro to a function to hide implementation
+details: The macro accessed :c:member:`PyTypeObject.tp_descr_set` directly.
+Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43181
+.. date: 2021-02-11-11-37-14
+.. nonce: ydv33S
+.. section: C API
+
+Convert :c:func:`PyObject_TypeCheck` macro to a static inline function.
+Patch by Erlend E. Aasland.
--- /dev/null
+.. bpo: 42988
+.. date: 2021-03-24-14-16-56
+.. nonce: P2aNco
+.. release date: 2021-04-05
+.. section: Security
+
+CVE-2021-3426: Remove the ``getfile`` feature of the :mod:`pydoc` module
+which could be abused to read arbitrary files on the disk (directory
+traversal vulnerability). Moreover, even source code of Python modules can
+contain sensitive data like passwords. Vulnerability reported by David
+Schwörer.
+
+..
+
+.. bpo: 43285
+.. date: 2021-03-13-03-48-14
+.. nonce: g-Hah3
+.. section: Security
+
+:mod:`ftplib` no longer trusts the IP address value returned from the server
+in response to the PASV command by default. This prevents a malicious FTP
+server from using the response to probe IPv4 address and port combinations
+on the client network.
+
+Code that requires the former vulnerable behavior may set a
+``trust_server_pasv_ipv4_address`` attribute on their :class:`ftplib.FTP`
+instances to ``True`` to re-enable it.
+
+..
+
+.. bpo: 43439
+.. date: 2021-03-08-23-06-07
+.. nonce: 5U3lXm
+.. section: Security
+
+Add audit hooks for :func:`gc.get_objects`, :func:`gc.get_referrers` and
+:func:`gc.get_referents`. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 27129
+.. date: 2021-04-03-22-04-46
+.. nonce: u_ehHb
+.. section: Core and Builtins
+
+Update CPython bytecode magic number.
+
+..
+
+.. bpo: 43672
+.. date: 2021-03-31-09-12-54
+.. nonce: jTT5uG
+.. section: Core and Builtins
+
+Raise ImportWarning when calling find_loader().
+
+..
+
+.. bpo: 43660
+.. date: 2021-03-29-19-50-34
+.. nonce: scTgag
+.. section: Core and Builtins
+
+Fix crash that happens when replacing ``sys.stderr`` with a callable that
+can remove the object while an exception is being printed. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 27129
+.. date: 2021-03-29-16-20-29
+.. nonce: BF03A5
+.. section: Core and Builtins
+
+The bytecode interpreter uses instruction, rather byte, offsets internally.
+This reduces the number of EXTENDED_ARG instructions needed and streamlines
+instruction dispatch a bit.
+
+..
+
+.. bpo: 40645
+.. date: 2021-03-29-11-55-06
+.. nonce: PhaT-B
+.. section: Core and Builtins
+
+Fix reference leak in the :mod:`_hashopenssl` extension. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 42134
+.. date: 2021-03-26-17-30-19
+.. nonce: G4Sjxg
+.. section: Core and Builtins
+
+Calls to find_module() by the import system now raise ImportWarning.
+
+..
+
+.. bpo: 41064
+.. date: 2021-03-24-00-32-20
+.. nonce: _H0K_g
+.. section: Core and Builtins
+
+Improve the syntax error for invalid usage of double starred elements ('**')
+in f-strings. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 43575
+.. date: 2021-03-21-12-26-32
+.. nonce: pl-nSg
+.. section: Core and Builtins
+
+Speed up calls to ``map()`` by using the :pep:`590` ``vectorcall`` calling
+convention. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 42137
+.. date: 2021-03-20-19-54-47
+.. nonce: A8aQvj
+.. section: Core and Builtins
+
+The import system now prefers using ``__spec__`` for ``ModuleType.__repr__``
+over ``module_repr()``.
+
+..
+
+.. bpo: 43452
+.. date: 2021-03-20-01-21-37
+.. nonce: tDVJkc
+.. section: Core and Builtins
+
+Added micro-optimizations to ``_PyType_Lookup()`` to improve cache lookup
+performance in the common case of cache hits.
+
+..
+
+.. bpo: 43555
+.. date: 2021-03-19-22-49-40
+.. nonce: ZmhYSA
+.. section: Core and Builtins
+
+Report the column offset for :exc:`SyntaxError` for invalid line
+continuation characters. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 43517
+.. date: 2021-03-16-17-12-54
+.. nonce: zAo6Ws
+.. section: Core and Builtins
+
+Fix misdetection of circular imports when using ``from pkg.mod import
+attr``, which caused false positives in non-trivial multi-threaded code.
+
+..
+
+.. bpo: 43497
+.. date: 2021-03-15-07-50-30
+.. nonce: Uc5ZCJ
+.. section: Core and Builtins
+
+Emit SyntaxWarnings for assertions with tuple constants, this is a
+regression introduced in python3.7
+
+..
+
+.. bpo: 39316
+.. date: 2021-03-14-16-44-50
+.. nonce: Ns3a_F
+.. section: Core and Builtins
+
+Tracing now has correct line numbers for attribute accesses when the
+attribute is on a different line from the object. Improves debugging and
+profiling for multi-line method chains.
+
+..
+
+.. bpo: 35883
+.. date: 2021-03-13-13-57-21
+.. nonce: UyGpdG
+.. section: Core and Builtins
+
+Python no longer fails at startup with a fatal error if a command line
+argument contains an invalid Unicode character. The
+:c:func:`Py_DecodeLocale` function now escapes byte sequences which would be
+decoded as Unicode characters outside the [U+0000; U+10ffff] range.
+
+..
+
+.. bpo: 43410
+.. date: 2021-03-05-17-23-36
+.. nonce: lCzIg0
+.. section: Core and Builtins
+
+Fix a bug that was causing the parser to crash when emitting syntax errors
+when reading input from stdin. Patch by Pablo Galindo
+
+..
+
+.. bpo: 43406
+.. date: 2021-03-04-22-53-10
+.. nonce: Na_VpA
+.. section: Core and Builtins
+
+Fix a possible race condition where ``PyErr_CheckSignals`` tries to execute
+a non-Python signal handler.
+
+..
+
+.. bpo: 42128
+.. date: 2021-03-03-19-04-23
+.. nonce: VouZjn
+.. section: Core and Builtins
+
+Add ``__match_args__`` to :c:type:`structsequence` based classes. Patch by
+Pablo Galindo.
+
+..
+
+.. bpo: 43390
+.. date: 2021-03-03-17-58-49
+.. nonce: epPpwV
+.. section: Core and Builtins
+
+CPython now sets the ``SA_ONSTACK`` flag in ``PyOS_setsig`` for the VM's
+default signal handlers. This is friendlier to other in-process code that
+an extension module or embedding use could pull in (such as Golang's cgo)
+where tiny thread stacks are the norm and ``sigaltstack()`` has been used to
+provide for signal handlers. This is a no-op change for the vast majority
+of processes that don't use sigaltstack.
+
+..
+
+.. bpo: 43287
+.. date: 2021-02-22-03-01-02
+.. nonce: aTs6fO
+.. section: Core and Builtins
+
+Speed up calls to ``filter()`` by using the :pep:`590` ``vectorcall``
+calling convention. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 37448
+.. date: 2021-02-21-14-19-35
+.. nonce: btl7vO
+.. section: Core and Builtins
+
+Add a radix tree based memory map to track in-use obmalloc arenas. Use to
+replace the old implementation of address_in_range(). The radix tree
+approach makes it easy to increase pool sizes beyond the OS page size.
+Boosting the pool and arena size allows obmalloc to handle a significantly
+higher percentage of requests from its ultra-fast paths.
+
+It also has the advantage of eliminating the memory unsanitary behavior of
+the previous address_in_range(). The old address_in_range() was marked with
+the annotations _Py_NO_SANITIZE_ADDRESS, _Py_NO_SANITIZE_THREAD, and
+_Py_NO_SANITIZE_MEMORY. Those annotations are no longer needed.
+
+To disable the radix tree map, set a preprocessor flag as follows:
+`-DWITH_PYMALLOC_RADIX_TREE=0`.
+
+Co-authored-by: Tim Peters <tim.peters@gmail.com>
+
+..
+
+.. bpo: 29988
+.. date: 2020-02-03-13-23-10
+.. nonce: 8_UB5w
+.. section: Core and Builtins
+
+Only handle asynchronous exceptions and requests to drop the GIL when
+returning from a call or on the back edges of loops. Makes sure that
+:meth:`__exit__` is always called in with statements, even for interrupts.
+
+..
+
+.. bpo: 43720
+.. date: 2021-04-03-13-45-51
+.. nonce: FDZ5cZ
+.. section: Library
+
+Document various stdlib deprecations in imp, pkgutil, and importlib.util for
+removal in Python 3.12.
+
+..
+
+.. bpo: 43433
+.. date: 2021-03-28-23-50-20
+.. nonce: so9j5G
+.. section: Library
+
+:class:`xmlrpc.client.ServerProxy` no longer ignores query and fragment in
+the URL of the server.
+
+..
+
+.. bpo: 31956
+.. date: 2021-03-28-16-53-25
+.. nonce: Lt_67U
+.. section: Library
+
+The :meth:`~array.array.index` method of :class:`array.array` now has
+optional *start* and *stop* parameters.
+
+..
+
+.. bpo: 40066
+.. date: 2021-03-25-21-26-30
+.. nonce: 7EBQ3_
+.. section: Library
+
+Enum: adjust ``repr()`` to show only enum and member name (not value, nor
+angle brackets) and ``str()`` to show only member name. Update and improve
+documentation to match.
+
+..
+
+.. bpo: 42136
+.. date: 2021-03-25-08-44-26
+.. nonce: rRY9e1
+.. section: Library
+
+Deprecate all module_repr() methods found in importlib as their use is being
+phased out by Python 3.12.
+
+..
+
+.. bpo: 35930
+.. date: 2021-03-23-17-18-56
+.. nonce: RZ51pM
+.. section: Library
+
+Raising an exception raised in a "future" instance will create reference
+cycles.
+
+..
+
+.. bpo: 41369
+.. date: 2021-03-21-17-50-42
+.. nonce: -fpmYZ
+.. section: Library
+
+Finish updating the vendored libmpdec to version 2.5.1. Patch by Stefan
+Krah.
+
+..
+
+.. bpo: 43422
+.. date: 2021-03-21-17-02-52
+.. nonce: POk6cU
+.. section: Library
+
+Revert the _decimal C API which was added in bpo-41324.
+
+..
+
+.. bpo: 43577
+.. date: 2021-03-21-10-13-17
+.. nonce: m7JnAV
+.. section: Library
+
+Fix deadlock when using :class:`ssl.SSLContext` debug callback with
+:meth:`ssl.SSLContext.sni_callback`.
+
+..
+
+.. bpo: 43571
+.. date: 2021-03-20-17-40-35
+.. nonce: acAL0W
+.. section: Library
+
+It's now possible to create MPTCP sockets with IPPROTO_MPTCP
+
+..
+
+.. bpo: 43542
+.. date: 2021-03-20-15-43-25
+.. nonce: 6bt2F6
+.. section: Library
+
+``image/heic`` and ``image/heif`` were added to :mod:`mimetypes`.
+
+..
+
+.. bpo: 40645
+.. date: 2021-03-19-10-22-17
+.. nonce: 5pXhb-
+.. section: Library
+
+The :mod:`hmac` module now uses OpenSSL's HMAC implementation when digestmod
+argument is a hash name or builtin hash function.
+
+..
+
+.. bpo: 43510
+.. date: 2021-03-16-17-20-33
+.. nonce: -BeQH_
+.. section: Library
+
+Implement :pep:`597`: Add ``EncodingWarning`` warning, ``-X
+warn_default_encoding`` option, :envvar:`PYTHONWARNDEFAULTENCODING`
+environment variable and ``encoding="locale"`` argument value.
+
+..
+
+.. bpo: 43521
+.. date: 2021-03-16-16-05-02
+.. nonce: mRT6fh
+.. section: Library
+
+``ast.unparse`` can now render NaNs and empty sets.
+
+..
+
+.. bpo: 42914
+.. date: 2021-03-14-21-47-28
+.. nonce: 9U1o33
+.. section: Library
+
+:func:`pprint.pprint` gains a new boolean ``underscore_numbers`` optional
+argument to emit integers with thousands separated by an underscore
+character for improved readability (for example ``1_000_000`` instead of
+``1000000``).
+
+..
+
+.. bpo: 41361
+.. date: 2021-03-13-08-18-01
+.. nonce: lXDIlr
+.. section: Library
+
+:meth:`~collections.deque.rotate` calls are now slightly faster due to
+faster argument parsing.
+
+..
+
+.. bpo: 43423
+.. date: 2021-03-11-15-44-18
+.. nonce: rRomRD
+.. section: Library
+
+:func:`subprocess.communicate` no longer raises an IndexError when there is
+an empty stdout or stderr IO buffer during a timeout on Windows.
+
+..
+
+.. bpo: 27820
+.. date: 2021-03-10-14-07-44
+.. nonce: Wwdy-r
+.. section: Library
+
+Fixed long-standing bug of smtplib.SMTP where doing AUTH LOGIN with
+initial_response_ok=False will fail.
+
+The cause is that SMTP.auth_login _always_ returns a password if provided
+with a challenge string, thus non-compliant with the standard for AUTH
+LOGIN.
+
+Also fixes bug with the test for smtpd.
+
+..
+
+.. bpo: 43445
+.. date: 2021-03-09-11-36-19
+.. nonce: jnj-UB
+.. section: Library
+
+Add frozen modules to :data:`sys.stdlib_module_names`. For example, add
+``"_frozen_importlib"`` and ``"_frozen_importlib_external"`` names.
+
+..
+
+.. bpo: 43245
+.. date: 2021-03-08-22-14-37
+.. nonce: nXL-MC
+.. section: Library
+
+Add keyword arguments support to ``ChainMap.new_child()``.
+
+..
+
+.. bpo: 29982
+.. date: 2021-03-07-23-23-03
+.. nonce: Q9iszT
+.. section: Library
+
+Add optional parameter *ignore_cleanup_errors* to
+:func:`tempfile.TemporaryDirectory` and allow multiple :func:`cleanup`
+attempts. Contributed by C.A.M. Gerlach.
+
+..
+
+.. bpo: 43428
+.. date: 2021-03-07-18-54-39
+.. nonce: br0XmX
+.. section: Library
+
+Include changes from `importlib_metadata 3.7
+<https://importlib-metadata.readthedocs.io/en/latest/history.html#v3-7-0>`_:
+
+Performance enhancements to distribution discovery.
+
+``entry_points`` only returns unique distributions.
+
+Introduces new ``EntryPoints`` object for containing a set of entry points
+with convenience methods for selecting entry points by group or name.
+``entry_points`` now returns this object if selection parameters are
+supplied but continues to return a dict object for compatibility. Users are
+encouraged to rely on the selection interface. The dict object result is
+likely to be deprecated in the future.
+
+Added packages_distributions function to return a mapping of packages to the
+distributions that provide them.
+
+..
+
+.. bpo: 43332
+.. date: 2021-03-07-11-23-20
+.. nonce: weatsh
+.. section: Library
+
+Improves the networking efficiency of :mod:`http.client` when using a proxy
+via :meth:`~HTTPConnection.set_tunnel`. Fewer small send calls are made
+during connection setup.
+
+..
+
+.. bpo: 43420
+.. date: 2021-03-07-08-03-31
+.. nonce: cee_X5
+.. section: Library
+
+Improve performance of :class:`fractions.Fraction` arithmetics for large
+components. Contributed by Sergey B. Kirpichev.
+
+..
+
+.. bpo: 43356
+.. date: 2021-03-04-21-51-20
+.. nonce: X7IGBM
+.. section: Library
+
+Allow passing a signal number to ``_thread.interrupt_main()``.
+
+..
+
+.. bpo: 43399
+.. date: 2021-03-04-17-53-46
+.. nonce: Wn95u-
+.. section: Library
+
+Fix ``ElementTree.extend`` not working on iterators when using the Python
+implementation
+
+..
+
+.. bpo: 43369
+.. date: 2021-03-02-15-25-28
+.. nonce: F4knlQ
+.. section: Library
+
+Improve :mod:`sqlite3` error handling: If ``sqlite3_column_text()`` and
+``sqlite3_column_blob()`` set ``SQLITE_NOMEM``, :exc:`MemoryError` is now
+raised. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43368
+.. date: 2021-03-02-13-45-05
+.. nonce: t9XEkQ
+.. section: Library
+
+Fix a regression introduced in PR 24562, where an empty bytestring was
+fetched as ``None`` instead of ``b''`` in :mod:`sqlite3`. Patch by Mariusz
+Felisiak.
+
+..
+
+.. bpo: 41282
+.. date: 2021-03-02-09-54-22
+.. nonce: xL4h94
+.. section: Library
+
+Fixed stacklevel of ``DeprecationWarning`` emitted from ``import
+distutils``.
+
+..
+
+.. bpo: 42129
+.. date: 2021-02-28-04-21-35
+.. nonce: V0KifQ
+.. section: Library
+
+``importlib.resources`` now honors namespace packages, merging resources
+from each location in the namespace as introduced in ``importlib_resources``
+3.2 and including incidental changes through 5.0.3.
+
+..
+
+.. bpo: 43295
+.. date: 2021-02-22-22-54-40
+.. nonce: h_ffu7
+.. section: Library
+
+:meth:`datetime.datetime.strptime` now raises ``ValueError`` instead of
+``IndexError`` when matching ``'z'`` with the ``%z`` format specifier.
+
+..
+
+.. bpo: 43125
+.. date: 2021-02-07-19-13-30
+.. nonce: AqNoMa
+.. section: Library
+
+Return empty string if base64mime.body_encode receive empty bytes
+
+..
+
+.. bpo: 43084
+.. date: 2021-01-31-17-31-13
+.. nonce: i8nLpK
+.. section: Library
+
+:func:`curses.window.enclose` returns now ``True`` or ``False`` (as was
+documented) instead of ``1`` or ``0``.
+
+..
+
+.. bpo: 42994
+.. date: 2021-01-21-16-58-34
+.. nonce: El0Ksp
+.. section: Library
+
+Add MIME types for opus, AAC, 3gpp and 3gpp2
+
+..
+
+.. bpo: 14678
+.. date: 2021-01-07-21-25-49
+.. nonce: 1zniCH
+.. section: Library
+
+Add an invalidate_caches() method to the zipimport.zipimporter class to
+support importlib.invalidate_caches(). Patch by Desmond Cheong.
+
+..
+
+.. bpo: 42782
+.. date: 2020-12-29-13-46-57
+.. nonce: 3r0HFY
+.. section: Library
+
+Fail fast in :func:`shutil.move()` to avoid creating destination directories
+on failure.
+
+..
+
+.. bpo: 40066
+.. date: 2020-09-23-21-58-34
+.. nonce: f1dr_5
+.. section: Library
+
+Enum's `repr()` and `str()` have changed: `repr()` is now
+*EnumClass.MemberName* and `str()` is *MemberName*. Additionally, stdlib
+Enum's whose contents are available as module attributes, such as
+`RegexFlag.IGNORECASE`, have their `repr()` as *module.name*, e.g.
+`re.IGNORECASE`.
+
+..
+
+.. bpo: 26053
+.. date: 2020-09-01-10-12-13
+.. nonce: hXikw_
+.. section: Library
+
+Fixed bug where the :mod:`pdb` interactive run command echoed the args from
+the shell command line, even if those have been overridden at the pdb
+prompt.
+
+..
+
+.. bpo: 24160
+.. date: 2020-08-28-23-07-53
+.. nonce: MSGnKr
+.. section: Library
+
+Fixed bug where breakpoints did not persist across multiple debugger
+sessions in :mod:`pdb`'s interactive mode.
+
+..
+
+.. bpo: 40701
+.. date: 2020-05-27-05-42-39
+.. nonce: PBIgW1
+.. section: Library
+
+When the :data:`tempfile.tempdir` global variable is set to a value of type
+bytes, it is now handled consistently. Previously exceptions could be
+raised from some tempfile APIs when the directory did not already exist in
+this situation. Also ensures that the :func:`tempfile.gettempdir()` and
+:func:`tempfile.gettempdirb()` functions *always* return ``str`` and
+``bytes`` respectively.
+
+..
+
+.. bpo: 39342
+.. date: 2020-01-15-11-15-35
+.. nonce: S8PuJO
+.. section: Library
+
+Expose ``X509_V_FLAG_ALLOW_PROXY_CERTS`` as
+:data:`~ssl.VERIFY_ALLOW_PROXY_CERTS` to allow proxy certificate validation
+as explained in
+https://www.openssl.org/docs/man1.1.1/man7/proxy-certificates.html.
+
+..
+
+.. bpo: 31861
+.. date: 2018-08-24-01-08-09
+.. nonce: -q9RKJ
+.. section: Library
+
+Add builtins.aiter and builtins.anext. Patch by Joshua Bronson (@jab),
+Daniel Pope (@lordmauve), and Justin Wang (@justin39).
+
+..
+
+.. bpo: 43199
+.. date: 2021-03-13-18-43-54
+.. nonce: ZWA6KX
+.. section: Documentation
+
+Answer "Why is there no goto?" in the Design and History FAQ.
+
+..
+
+.. bpo: 43407
+.. date: 2021-03-04-22-53-03
+.. nonce: x570l5
+.. section: Documentation
+
+Clarified that a result from :func:`time.monotonic`,
+:func:`time.perf_counter`, :func:`time.process_time`, or
+:func:`time.thread_time` can be compared with the result from any following
+call to the same function - not just the next immediate call.
+
+..
+
+.. bpo: 43354
+.. date: 2021-03-02-12-55-34
+.. nonce: ezZYkx
+.. section: Documentation
+
+Fix type documentation for ``Fault.faultCode``; the type has to be ``int``
+instead of ``str``.
+
+..
+
+.. bpo: 41933
+.. date: 2020-10-05-20-04-43
+.. nonce: Pff94-
+.. section: Documentation
+
+Clarified wording of s * n in the Common Sequence Operations
+
+..
+
+.. bpo: 37945
+.. date: 2021-03-31-11-38-42
+.. nonce: HTUYhv
+.. section: Tests
+
+Fix test_getsetlocale_issue1813() of test_locale: skip the test if
+``setlocale()`` fails. Patch by Victor Stinner.
+
+..
+
+.. bpo: 41561
+.. date: 2021-03-18-10-34-42
+.. nonce: pDg4w-
+.. section: Tests
+
+Add workaround for Ubuntu's custom OpenSSL security level policy.
+
+..
+
+.. bpo: 43179
+.. date: 2021-03-31-12-20-23
+.. nonce: Qbe1OD
+.. section: Build
+
+Introduce and correctly use ALIGNOF_X in place of SIZEOF_X for
+alignment-related code in optimized string routines. Patch by Jessica
+Clarke.
+
+..
+
+.. bpo: 43631
+.. date: 2021-03-26-09-16-34
+.. nonce: msJyPi
+.. section: Build
+
+Update macOS, Windows, and CI to OpenSSL 1.1.1k.
+
+..
+
+.. bpo: 43617
+.. date: 2021-03-24-16-55-55
+.. nonce: d69KAv
+.. section: Build
+
+Improve configure.ac: Check for presence of autoconf-archive package and
+remove our copies of M4 macros.
+
+..
+
+.. bpo: 43466
+.. date: 2021-03-11-00-14-47
+.. nonce: N861Z5
+.. section: Build
+
+The ``configure`` script now supports ``--with-openssl-rpath`` option.
+
+..
+
+.. bpo: 43372
+.. date: 2021-03-04-17-13-57
+.. nonce: FfqDVL
+.. section: Build
+
+Use ``_freeze_importlib`` to generate code for the ``__hello__`` module.
+This approach ensures the code matches the interpreter version. Previously,
+PYTHON_FOR_REGEN was used to generate the code, which might be wrong. The
+marshal format for code objects has changed with bpo-42246, commit 877df851.
+Update the code and the expected code sizes in ctypes test_frozentable.
+
+..
+
+.. bpo: 43440
+.. date: 2021-03-09-11-15-41
+.. nonce: igy2Mn
+.. section: Windows
+
+Build :mod:`sqlite3` with the ``R*Tree`` module enabled. Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 42225
+.. date: 2021-03-29-16-22-27
+.. nonce: iIeiLg
+.. section: IDLE
+
+Document that IDLE can fail on Unix either from misconfigured IP masquerade
+rules or failure displaying complex colored (non-ascii) characters.
+
+..
+
+.. bpo: 43688
+.. date: 2021-04-01-09-10-42
+.. nonce: G4gs6k
+.. section: C API
+
+The limited C API is now supported if Python is built in debug mode (if the
+``Py_DEBUG`` macro is defined). In the limited C API, the
+:c:func:`Py_INCREF` and :c:func:`Py_DECREF` functions are now implemented as
+opaque function calls, rather than accessing directly the
+:c:member:`PyObject.ob_refcnt` member, if Python is built in debug mode and
+the ``Py_LIMITED_API`` macro targets Python 3.10 or newer. It became
+possible to support the limited C API in debug mode because the
+:c:type:`PyObject` structure is the same in release and debug mode since
+Python 3.8 (see :issue:`36465`).
+
+The limited C API is still not supported in the ``--with-trace-refs``
+special build (``Py_TRACE_REFS`` macro).
+
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 43244
+.. date: 2021-03-24-01-22-14
+.. nonce: 31-97x
+.. section: C API
+
+Remove the ``pyarena.h`` header file with functions:
+
+* ``PyArena_New()``
+* ``PyArena_Free()``
+* ``PyArena_Malloc()``
+* ``PyArena_AddPyObject()``
+
+These functions were undocumented, excluded from the limited C API, and were
+only used internally by the compiler. Patch by Victor Stinner.
+
+..
+
+.. bpo: 43244
+.. date: 2021-03-23-20-53-41
+.. nonce: VK3sLH
+.. section: C API
+
+Remove the compiler and parser functions using ``struct _mod`` type, because
+the public AST C API was removed:
+
+* ``PyAST_Compile()``
+* ``PyAST_CompileEx()``
+* ``PyAST_CompileObject()``
+* ``PyFuture_FromAST()``
+* ``PyFuture_FromASTObject()``
+* ``PyParser_ASTFromFile()``
+* ``PyParser_ASTFromFileObject()``
+* ``PyParser_ASTFromFilename()``
+* ``PyParser_ASTFromString()``
+* ``PyParser_ASTFromStringObject()``
+
+These functions were undocumented and excluded from the limited C API. Patch
+by Victor Stinner.
+
+..
+
+.. bpo: 43244
+.. date: 2021-03-19-12-56-11
+.. nonce: VuIyOD
+.. section: C API
+
+Remove ``ast.h``, ``asdl.h``, and ``Python-ast.h`` header files. These
+functions were undocumented and excluded from the limited C API. Most names
+defined by these header files were not prefixed by ``Py`` and so could
+create names conflicts. For example, ``Python-ast.h`` defined a ``Yield``
+macro which was conflict with the ``Yield`` name used by the Windows
+``<winbase.h>`` header. Use the Python :mod:`ast` module instead. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 43541
+.. date: 2021-03-18-12-44-33
+.. nonce: ICigzd
+.. section: C API
+
+Fix a ``PyEval_EvalCodeEx()`` regression: fix reference counting on
+builtins. Patch by Victor Stinner.
+
+..
+
+.. bpo: 43244
+.. date: 2021-03-17-23-53-14
+.. nonce: kfPqA_
+.. section: C API
+
+Remove the ``symtable.h`` header file and the undocumented functions:
+
+* ``PyST_GetScope()``
+* ``PySymtable_Build()``
+* ``PySymtable_BuildObject()``
+* ``PySymtable_Free()``
+* ``Py_SymtableString()``
+* ``Py_SymtableStringObject()``
+
+The ``Py_SymtableString()`` function was part the stable ABI by mistake but
+it could not be used, because the ``symtable.h`` header file was excluded
+from the limited C API.
+
+The Python :mod:`symtable` module remains available and is unchanged.
+
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 43244
+.. date: 2021-03-17-23-20-07
+.. nonce: diyn2C
+.. section: C API
+
+Remove the ``PyAST_Validate()`` function. It is no longer possible to build
+a AST object (``mod_ty`` type) with the public C API. The function was
+already excluded from the limited C API (:pep:`384`). Patch by Victor
+Stinner.
--- /dev/null
+.. bpo: 43434
+.. date: 2021-05-02-17-50-23
+.. nonce: cy7xz6
+.. release date: 2021-05-03
+.. section: Security
+
+Creating :class:`sqlite3.Connection` objects now also produces
+``sqlite3.connect`` and ``sqlite3.connect/handle`` :ref:`auditing events
+<auditing>`. Previously these events were only produced by
+:func:`sqlite3.connect` calls. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43998
+.. date: 2021-05-01-13-13-40
+.. nonce: xhmWD7
+.. section: Security
+
+The :mod:`ssl` module sets more secure cipher suites defaults. Ciphers
+without forward secrecy and with SHA-1 MAC are disabled by default. Security
+level 2 prohibits weak RSA, DH, and ECC keys with less than 112 bits of
+security. :class:`~ssl.SSLContext` defaults to minimum protocol version TLS
+1.2. Settings are based on Hynek Schlawack's research.
+
+..
+
+.. bpo: 43882
+.. date: 2021-04-25-07-46-37
+.. nonce: Jpwx85
+.. section: Security
+
+The presence of newline or tab characters in parts of a URL could allow some
+forms of attacks.
+
+Following the controlling specification for URLs defined by WHATWG
+:func:`urllib.parse` now removes ASCII newlines and tabs from URLs,
+preventing such attacks.
+
+..
+
+.. bpo: 43472
+.. date: 2021-04-21-22-53-31
+.. nonce: gjLBTb
+.. section: Security
+
+Ensures interpreter-level audit hooks receive the
+``cpython.PyInterpreterState_New`` event when called through the
+``_xxsubinterpreters`` module.
+
+..
+
+.. bpo: 43362
+.. date: 2021-04-18-00-56-44
+.. nonce: __5aiP
+.. section: Security
+
+Fix invalid free in _sha3 module. The issue was introduced in 3.10.0a1.
+Python 3.9 and earlier are not affected.
+
+..
+
+.. bpo: 43762
+.. date: 2021-04-07-12-57-41
+.. nonce: 7lMtpT
+.. section: Security
+
+Add audit events for :func:`sqlite3.connect/handle`,
+:meth:`sqlite3.Connection.enable_load_extension`, and
+:meth:`sqlite3.Connection.load_extension`. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43756
+.. date: 2021-04-06-18-07-48
+.. nonce: DLBNqQ
+.. section: Security
+
+Add new audit event ``glob.glob/2`` to incorporate the new *root_dir* and
+*dir_fd* arguments added to :func:`glob.glob` and :func:`glob.iglob`.
+
+..
+
+.. bpo: 36384
+.. date: 2021-03-30-16-29-51
+.. nonce: sCAmLs
+.. section: Security
+
+:mod:`ipaddress` module no longer accepts any leading zeros in IPv4 address
+strings. Leading zeros are ambiguous and interpreted as octal notation by
+some libraries. For example the legacy function :func:`socket.inet_aton`
+treats leading zeros as octal notation. glibc implementation of modern
+:func:`~socket.inet_pton` does not accept any leading zeros. For a while the
+:mod:`ipaddress` module used to accept ambiguous leading zeros.
+
+..
+
+.. bpo: 43075
+.. date: 2021-01-31-05-28-14
+.. nonce: DoAXqO
+.. section: Security
+
+Fix Regular Expression Denial of Service (ReDoS) vulnerability in
+:class:`urllib.request.AbstractBasicAuthHandler`. The ReDoS-vulnerable
+regex has quadratic worst-case complexity and it allows cause a denial of
+service when identifying crafted invalid RFCs. This ReDoS issue is on the
+client side and needs remote attackers to control the HTTP server.
+
+..
+
+.. bpo: 42800
+.. date: 2021-01-09-17-07-36
+.. nonce: _dtZvW
+.. section: Security
+
+Audit hooks are now fired for frame.f_code, traceback.tb_frame, and
+generator code/frame attribute access.
+
+..
+
+.. bpo: 37363
+.. date: 2020-07-04-22-14-46
+.. nonce: NDjHNw
+.. section: Security
+
+Add audit events to the :mod:`http.client` module.
+
+..
+
+.. bpo: 43977
+.. date: 2021-05-02-11-59-00
+.. nonce: R0hSDo
+.. section: Core and Builtins
+
+Prevent classes being both a sequence and a mapping when pattern matching.
+
+..
+
+.. bpo: 43977
+.. date: 2021-04-29-17-40-25
+.. nonce: FrQhge
+.. section: Core and Builtins
+
+Use :c:member:`~PyTypeObject.tp_flags` on the class object to determine if
+the subject is a sequence or mapping when pattern matching. Avoids the need
+to import :mod:`collections.abc` when pattern matching.
+
+..
+
+.. bpo: 43892
+.. date: 2021-04-29-16-00-28
+.. nonce: WXIehI
+.. section: Core and Builtins
+
+Restore proper validation of complex literal value patterns when parsing
+:keyword:`!match` blocks.
+
+..
+
+.. bpo: 43933
+.. date: 2021-04-29-13-49-57
+.. nonce: TueFdQ
+.. section: Core and Builtins
+
+Set frame.f_lineno to the line number of the 'with' kweyword when executing
+the call to ``__exit__``.
+
+..
+
+.. bpo: 43933
+.. date: 2021-04-29-13-11-44
+.. nonce: mvoV6O
+.. section: Core and Builtins
+
+If the current position in a frame has no line number then set the f_lineno
+attribute to None, instead of -1, to conform to PEP 626. This should not
+normally be possible, but might occur in some unusual circumstances.
+
+..
+
+.. bpo: 43963
+.. date: 2021-04-28-01-23-38
+.. nonce: u5Y6bS
+.. section: Core and Builtins
+
+Importing the :mod:`_signal` module in a subinterpreter has no longer side
+effects.
+
+..
+
+.. bpo: 42739
+.. date: 2021-04-27-10-59-10
+.. nonce: PrVkKM
+.. section: Core and Builtins
+
+The internal representation of line number tables is changed to not use
+sentinels, and an explicit length parameter is added to the out of process
+API function ``PyLineTable_InitAddressRange``. This makes the handling of
+line number tables more robust in some circumstances.
+
+..
+
+.. bpo: 43908
+.. date: 2021-04-26-21-20-41
+.. nonce: 2L51nO
+.. section: Core and Builtins
+
+Make :mod:`re` types immutable. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43908
+.. date: 2021-04-26-20-59-17
+.. nonce: -COW4-
+.. section: Core and Builtins
+
+Make the :class:`array.array` type immutable. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43901
+.. date: 2021-04-25-22-50-47
+.. nonce: oKjG5E
+.. section: Core and Builtins
+
+Change class and module objects to lazy-create empty annotations dicts on
+demand. The annotations dicts are stored in the object's __dict__ for
+backwards compatibility.
+
+..
+
+.. bpo: 43892
+.. date: 2021-04-25-08-35-11
+.. nonce: hr5Ke2
+.. section: Core and Builtins
+
+Match patterns now use new dedicated AST nodes (``MatchValue``,
+``MatchSingleton``, ``MatchSequence``, ``MatchStar``, ``MatchMapping``,
+``MatchClass``) rather than reusing expression AST nodes. ``MatchAs`` and
+``MatchOr`` are now defined as pattern nodes rather than as expression
+nodes. Patch by Nick Coghlan.
+
+..
+
+.. bpo: 42725
+.. date: 2021-04-25-05-40-51
+.. nonce: WGloYm
+.. section: Core and Builtins
+
+Usage of ``await``/``yield``/``yield from`` and named expressions within an
+annotation is now forbidden when PEP 563 is activated.
+
+..
+
+.. bpo: 43754
+.. date: 2021-04-24-16-40-23
+.. nonce: 9SzHWG
+.. section: Core and Builtins
+
+When performing structural pattern matching (:pep:`634`), captured names are
+now left unbound until the *entire* pattern has matched successfully.
+
+..
+
+.. bpo: 42737
+.. date: 2021-04-22-22-48-30
+.. nonce: lsJ7pD
+.. section: Core and Builtins
+
+Annotations for complex targets (everything beside simple names) no longer
+cause any runtime effects with ``from __future__ import annotations``.
+
+..
+
+.. bpo: 43914
+.. date: 2021-04-22-19-09-58
+.. nonce: 0Ik1AM
+.. section: Core and Builtins
+
+:exc:`SyntaxError` exceptions raised by the interpreter will highlight the
+full error range of the expression that consistutes the syntax error itself,
+instead of just where the problem is detected. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 38605
+.. date: 2021-04-20-22-17-47
+.. nonce: 9eeCNZ
+.. section: Core and Builtins
+
+Revert making ``from __future__ import annotations`` the default. This
+follows the Steering Council decision to postpone PEP 563 changes to at
+least Python 3.11. See the original email for more information regarding the
+decision:
+https://mail.python.org/archives/list/python-dev@python.org/thread/CLVXXPQ2T2LQ5MP2Y53VVQFCXYWQJHKZ/.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 43475
+.. date: 2021-04-20-20-10-46
+.. nonce: oV8Mbs
+.. section: Core and Builtins
+
+Hashes of NaN values now depend on object identity. Formerly, they always
+hashed to 0 even though NaN values are not equal to one another. Having the
+same hash for unequal values caused pile-ups in hash tables.
+
+..
+
+.. bpo: 43859
+.. date: 2021-04-16-01-26-57
+.. nonce: QfqjFL
+.. section: Core and Builtins
+
+Improve the error message for :exc:`IndentationError` exceptions. Patch by
+Pablo Galindo
+
+..
+
+.. bpo: 41323
+.. date: 2021-04-15-10-19-59
+.. nonce: nsvpSg
+.. section: Core and Builtins
+
+Constant tuple folding in bytecode optimizer now reuses tuple in constant
+table.
+
+..
+
+.. bpo: 43846
+.. date: 2021-04-14-13-53-08
+.. nonce: 2jO97c
+.. section: Core and Builtins
+
+Data stack usage is much reduced for large literal and call expressions.
+
+..
+
+.. bpo: 38530
+.. date: 2021-04-14-03-53-06
+.. nonce: rNI_G1
+.. section: Core and Builtins
+
+When printing :exc:`NameError` raised by the interpreter,
+:c:func:`PyErr_Display` will offer suggestions of similar variable names in
+the function that the exception was raised from. Patch by Pablo Galindo
+
+..
+
+.. bpo: 43823
+.. date: 2021-04-13-03-06-09
+.. nonce: xpuHBi
+.. section: Core and Builtins
+
+Improve syntax errors for invalid dictionary literals. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 43822
+.. date: 2021-04-13-02-32-18
+.. nonce: lej0OO
+.. section: Core and Builtins
+
+Improve syntax errors in the parser for missing commas between expressions.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 43798
+.. date: 2021-04-10-00-01-43
+.. nonce: p_nJFM
+.. section: Core and Builtins
+
+:class:`ast.alias` nodes now include source location metadata attributes
+e.g. lineno, col_offset.
+
+..
+
+.. bpo: 43797
+.. date: 2021-04-09-19-12-48
+.. nonce: HfRqNP
+.. section: Core and Builtins
+
+Improve ``SyntaxError`` error messages for invalid comparisons. Patch by
+Pablo Galindo.
+
+..
+
+.. bpo: 43760
+.. date: 2021-04-08-12-20-29
+.. nonce: tBIsD8
+.. section: Core and Builtins
+
+Move the flag for checking whether tracing is enabled to the C stack, from
+the heap. Should speed up dispatch in the interpreter.
+
+..
+
+.. bpo: 43682
+.. date: 2021-04-08-01-06-22
+.. nonce: eUn4p5
+.. section: Core and Builtins
+
+Static methods (:func:`@staticmethod <staticmethod>`) and class methods
+(:func:`@classmethod <classmethod>`) now inherit the method attributes
+(``__module__``, ``__name__``, ``__qualname__``, ``__doc__``,
+``__annotations__``) and have a new ``__wrapped__`` attribute. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 43751
+.. date: 2021-04-07-18-00-05
+.. nonce: 8fHsqQ
+.. section: Core and Builtins
+
+Fixed a bug where ``anext(ait, default)`` would erroneously return None.
+
+..
+
+.. bpo: 42128
+.. date: 2021-04-05-17-38-08
+.. nonce: 1uVeGK
+.. section: Core and Builtins
+
+:data:`~object.__match_args__` is no longer allowed to be a list.
+
+..
+
+.. bpo: 43683
+.. date: 2021-04-01-12-30-30
+.. nonce: AjxOx2
+.. section: Core and Builtins
+
+Add GEN_START opcode. Marks start of generator, including async, or
+coroutine and handles sending values to a newly created generator or
+coroutine.
+
+..
+
+.. bpo: 43105
+.. date: 2021-03-31-20-35-11
+.. nonce: PBVmHm
+.. section: Core and Builtins
+
+Importlib now resolves relative paths when creating module spec objects from
+file locations.
+
+..
+
+.. bpo: 43682
+.. date: 2021-03-31-16-32-57
+.. nonce: VSF3vg
+.. section: Core and Builtins
+
+Static methods (:func:`@staticmethod <staticmethod>`) are now callable as
+regular functions. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42609
+.. date: 2020-12-12-14-28-31
+.. nonce: Qcd54b
+.. section: Core and Builtins
+
+Prevented crashes in the AST validator and optimizer when compiling some
+absurdly long expressions like ``"+0"*1000000``. :exc:`RecursionError` is
+now raised instead.
+
+..
+
+.. bpo: 38530
+.. date: 2019-10-27-20-20-07
+.. nonce: ZyoDNn
+.. section: Core and Builtins
+
+When printing :exc:`AttributeError`, :c:func:`PyErr_Display` will offer
+suggestions of similar attribute names in the object that the exception was
+raised from. Patch by Pablo Galindo
+
+..
+
+.. bpo: 44015
+.. date: 2021-05-03-03-03-49
+.. nonce: V5936k
+.. section: Library
+
+In @dataclass(), raise a TypeError if KW_ONLY is specified more than once.
+
+..
+
+.. bpo: 25478
+.. date: 2021-05-02-19-17-20
+.. nonce: AwlwdA
+.. section: Library
+
+Added a *total()* method to collections.Counter() to compute the sum of the
+counts.
+
+..
+
+.. bpo: 43733
+.. date: 2021-05-01-22-59-20
+.. nonce: gJWwEQ
+.. section: Library
+
+Change :class:`netrc.netrc` to use UTF-8 encoding before using locale
+encoding.
+
+..
+
+.. bpo: 43979
+.. date: 2021-05-01-01-36-51
+.. nonce: 43oJ9L
+.. section: Library
+
+Removed an unnecessary list comprehension before looping from
+:func:`urllib.parse.parse_qsl`. Patch by Christoph Zwerschke and Dong-hee
+Na.
+
+..
+
+.. bpo: 43993
+.. date: 2021-04-30-19-23-45
+.. nonce: T7_yoq
+.. section: Library
+
+Update bundled pip to 21.1.1.
+
+..
+
+.. bpo: 43957
+.. date: 2021-04-27-12-13-51
+.. nonce: 6EaPD-
+.. section: Library
+
+[Enum] Deprecate ``TypeError`` when non-member is used in a containment
+check; In 3.12 ``True`` or ``False`` will be returned instead, and
+containment will return ``True`` if the value is either a member of that
+enum or one of its members' value.
+
+..
+
+.. bpo: 42904
+.. date: 2021-04-26-23-39-47
+.. nonce: ejjsyR
+.. section: Library
+
+For backwards compatibility with previous minor versions of Python, if
+:func:`typing.get_type_hints` receives no namespace dictionary arguments,
+:func:`typing.get_type_hints` will search through the global then local
+namespaces during evaluation of stringized type annotations (string forward
+references) inside a class.
+
+..
+
+.. bpo: 43945
+.. date: 2021-04-26-20-52-16
+.. nonce: NgERXO
+.. section: Library
+
+[Enum] Deprecate non-standard mixin format() behavior: in 3.12 the enum
+member, not the member's value, will be used for format() calls.
+
+..
+
+.. bpo: 41139
+.. date: 2021-04-26-17-47-48
+.. nonce: ROhn1k
+.. section: Library
+
+Deprecate undocumented ``cgi.log()`` API.
+
+..
+
+.. bpo: 43937
+.. date: 2021-04-25-13-34-13
+.. nonce: isx95l
+.. section: Library
+
+Fixed the :mod:`turtle` module working with non-default root window.
+
+..
+
+.. bpo: 43930
+.. date: 2021-04-24-14-23-07
+.. nonce: R7ah0m
+.. section: Library
+
+Update bundled pip to 21.1 and setuptools to 56.0.0
+
+..
+
+.. bpo: 43907
+.. date: 2021-04-23-20-57-20
+.. nonce: 3RJEjv
+.. section: Library
+
+Fix a bug in the pure-Python pickle implementation when using protocol 5,
+where bytearray instances that occur several time in the pickled object
+graph would incorrectly unpickle into repeated copies of the bytearray
+object.
+
+..
+
+.. bpo: 43926
+.. date: 2021-04-23-17-48-55
+.. nonce: HMUlGU
+.. section: Library
+
+In ``importlib.metadata``, provide a uniform interface to ``Description``,
+allow for any field to be encoded with multiline values, remove continuation
+lines from multiline values, and add a ``.json`` property for easy access to
+the PEP 566 JSON-compatible form. Sync with ``importlib_metadata 4.0``.
+
+..
+
+.. bpo: 43920
+.. date: 2021-04-23-11-54-38
+.. nonce: cJMQ2D
+.. section: Library
+
+OpenSSL 3.0.0: :meth:`~ssl.SSLContext.load_verify_locations` now returns a
+consistent error message when cadata contains no valid certificate.
+
+..
+
+.. bpo: 43607
+.. date: 2021-04-22-22-39-58
+.. nonce: 7IYDkG
+.. section: Library
+
+:mod:`urllib` can now convert Windows paths with ``\\?\`` prefixes into URL
+paths.
+
+..
+
+.. bpo: 43817
+.. date: 2021-04-22-04-12-13
+.. nonce: FQ-XlH
+.. section: Library
+
+Add :func:`inspect.get_annotations`, which safely computes the annotations
+defined on an object. It works around the quirks of accessing the
+annotations from various types of objects, and makes very few assumptions
+about the object passed in. :func:`inspect.get_annotations` can also
+correctly un-stringize stringized annotations.
+
+:func:`inspect.signature`, :func:`inspect.from_callable`, and
+:func:`inspect.from_function` now call :func:`inspect.get_annotations` to
+retrieve annotations. This means :func:`inspect.signature` and
+:func:`inspect.from_callable` can now un-stringize stringized annotations,
+too.
+
+..
+
+.. bpo: 43284
+.. date: 2021-04-21-14-50-57
+.. nonce: 2QZn2T
+.. section: Library
+
+platform.win32_ver derives the windows version from
+sys.getwindowsversion().platform_version which in turn derives the version
+from kernel32.dll (which can be of a different version than Windows itself).
+Therefore change the platform.win32_ver to determine the version using the
+platform module's _syscmd_ver private function to return an accurate
+version.
+
+..
+
+.. bpo: 42854
+.. date: 2021-04-19-03-54-29
+.. nonce: Y4M7Tv
+.. section: Library
+
+The :mod:`ssl` module now uses ``SSL_read_ex`` and ``SSL_write_ex``
+internally. The functions support reading and writing of data larger than 2
+GB. Writing zero-length data no longer fails with a protocol violation
+error.
+
+..
+
+.. bpo: 42333
+.. date: 2021-04-17-19-31-17
+.. nonce: cgbtZO
+.. section: Library
+
+Port ``_ssl`` extension module to multiphase initialization.
+
+..
+
+.. bpo: 43880
+.. date: 2021-04-17-13-53-33
+.. nonce: -fC2JD
+.. section: Library
+
+:mod:`ssl` now raises DeprecationWarning for OP_NO_SSL/TLS* options, old TLS
+versions, old protocols, and other features that have been deprecated since
+Python 3.6, 3.7, or OpenSSL 1.1.0.
+
+..
+
+.. bpo: 41559
+.. date: 2021-04-17-10-49-57
+.. nonce: caIwt9
+.. section: Library
+
+:pep:`612` is now implemented purely in Python; builtin
+``types.GenericAlias`` objects no longer include ``typing.ParamSpec`` in
+``__parameters__`` (with the exception of ``collections.abc.Callable``\ 's
+``GenericAlias``). This means previously invalid uses of ``ParamSpec`` (such
+as ``list[P]``) which worked in earlier versions of Python 3.10 alpha, will
+now raise ``TypeError`` during substitution.
+
+..
+
+.. bpo: 43867
+.. date: 2021-04-16-16-46-44
+.. nonce: xT9QjF
+.. section: Library
+
+The :mod:`multiprocessing` ``Server`` class now explicitly catches
+:exc:`SystemExit` and closes the client connection in this case. It happens
+when the ``Server.serve_client()`` method reaches the end of file (EOF).
+
+..
+
+.. bpo: 40443
+.. date: 2021-04-16-02-03-00
+.. nonce: Io6FHL
+.. section: Library
+
+Remove unused imports: pyclbr no longer uses copy, and typing no longer uses
+ast. Patch by Victor Stinner.
+
+..
+
+.. bpo: 43820
+.. date: 2021-04-12-18-01-10
+.. nonce: YkqYW4
+.. section: Library
+
+Remove an unneeded copy of the namespace passed to
+dataclasses.make_dataclass().
+
+..
+
+.. bpo: 43787
+.. date: 2021-04-12-15-15-50
+.. nonce: wCy_Wd
+.. section: Library
+
+Add ``__iter__()`` method to :class:`bz2.BZ2File`, :class:`gzip.GzipFile`,
+and :class:`lzma.LZMAFile`. It makes iterating them about 2x faster. Patch
+by Inada Naoki.
+
+..
+
+.. bpo: 43680
+.. date: 2021-04-12-11-20-34
+.. nonce: SR0Epv
+.. section: Library
+
+Deprecate io.OpenWrapper and _pyio.OpenWrapper: use io.open and _pyio.open
+instead. Until Python 3.9, _pyio.open was not a static method and
+builtins.open was set to OpenWrapper to not become a bound method when set
+to a class variable. _io.open is a built-in function whereas _pyio.open is a
+Python function. In Python 3.10, _pyio.open() is now a static method, and
+builtins.open() is now io.open().
+
+..
+
+.. bpo: 43680
+.. date: 2021-04-12-09-57-37
+.. nonce: o1zEk_
+.. section: Library
+
+The Python :func:`_pyio.open` function becomes a static method to behave as
+:func:`io.open` built-in function: don't become a bound method when stored
+as a class variable. It becomes possible since static methods are now
+callable in Python 3.10. Moreover, :func:`_pyio.OpenWrapper` becomes a
+simple alias to :func:`_pyio.open`. Patch by Victor Stinner.
+
+..
+
+.. bpo: 41515
+.. date: 2021-04-12-06-01-10
+.. nonce: YaVReb
+.. section: Library
+
+Fix :exc:`KeyError` raised in :func:`typing.get_type_hints` due to synthetic
+modules that don't appear in ``sys.modules``.
+
+..
+
+.. bpo: 43776
+.. date: 2021-04-12-00-00-00
+.. nonce: p14y7a
+.. section: Library
+
+When :class:`subprocess.Popen` args are provided as a string or as
+:class:`pathlib.Path`, the Popen instance repr now shows the right thing.
+
+..
+
+.. bpo: 42248
+.. date: 2021-04-11-21-10-57
+.. nonce: pedB1E
+.. section: Library
+
+[Enum] ensure exceptions raised in ``_missing__`` are released
+
+..
+
+.. bpo: 43744
+.. date: 2021-04-11-20-52-32
+.. nonce: uf0E68
+.. section: Library
+
+fix issue with enum member name matching the start of a private variable
+name
+
+..
+
+.. bpo: 43772
+.. date: 2021-04-10-19-14-49
+.. nonce: Bxq0zQ
+.. section: Library
+
+Fixed the return value of ``TypeVar.__ror__``. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 43764
+.. date: 2021-04-10-18-23-09
+.. nonce: Le5KJp
+.. section: Library
+
+Add match_args parameter to @dataclass decorator to allow suppression of
+__match_args__ generation.
+
+..
+
+.. bpo: 43799
+.. date: 2021-04-10-11-35-50
+.. nonce: 1iV4pX
+.. section: Library
+
+OpenSSL 3.0.0: define ``OPENSSL_API_COMPAT`` 1.1.1 to suppress deprecation
+warnings. Python requires OpenSSL 1.1.1 APIs.
+
+..
+
+.. bpo: 43478
+.. date: 2021-04-10-03-30-36
+.. nonce: iZcBTq
+.. section: Library
+
+Mocks can no longer be used as the specs for other Mocks. As a result, an
+already-mocked object cannot have an attribute mocked using
+``autospec=True`` or be the subject of a ``create_autospec(...)`` call. This
+can uncover bugs in tests since these Mock-derived Mocks will always pass
+certain tests (e.g. :func:`isinstance`) and builtin assert functions (e.g.
+assert_called_once_with) will unconditionally pass.
+
+..
+
+.. bpo: 43794
+.. date: 2021-04-09-16-14-22
+.. nonce: -1XPDH
+.. section: Library
+
+Add :data:`ssl.OP_IGNORE_UNEXPECTED_EOF` constants (OpenSSL 3.0.0)
+
+..
+
+.. bpo: 43785
+.. date: 2021-04-09-14-51-58
+.. nonce: 1mM5xE
+.. section: Library
+
+Improve ``bz2.BZ2File`` performance by removing the RLock from BZ2File. This
+makes BZ2File thread unsafe in the face of multiple simultaneous readers or
+writers, just like its equivalent classes in :mod:`gzip` and :mod:`lzma`
+have always been. Patch by Inada Naoki.
+
+..
+
+.. bpo: 43789
+.. date: 2021-04-09-14-08-03
+.. nonce: eaHlAm
+.. section: Library
+
+OpenSSL 3.0.0: Don't call the password callback function a second time when
+first call has signaled an error condition.
+
+..
+
+.. bpo: 43788
+.. date: 2021-04-09-12-08-01
+.. nonce: YsvInM
+.. section: Library
+
+The header files for :mod:`ssl` error codes are now OpenSSL
+version-specific. Exceptions will now show correct reason and library codes.
+The ``make_ssl_data.py`` script has been rewritten to use OpenSSL's text
+file with error codes.
+
+..
+
+.. bpo: 43766
+.. date: 2021-04-09-00-16-22
+.. nonce: nYNQP0
+.. section: Library
+
+Implement :pep:`647` in the :mod:`typing` module by adding
+:data:`TypeGuard`.
+
+..
+
+.. bpo: 25264
+.. date: 2021-04-08-22-11-27
+.. nonce: b33fa0
+.. section: Library
+
+:func:`os.path.realpath` now accepts a *strict* keyword-only argument. When
+set to ``True``, :exc:`OSError` is raised if a path doesn't exist or a
+symlink loop is encountered.
+
+..
+
+.. bpo: 43780
+.. date: 2021-04-08-20-04-46
+.. nonce: hUOgCh
+.. section: Library
+
+In ``importlib.metadata``, incorporate changes from importlib_metadata 3.10:
+Add mtime-based caching during distribution discovery. Flagged use of dict
+result from ``entry_points()`` as deprecated.
+
+..
+
+.. gh: 47383
+.. date: 2021-04-08-19-32-26
+.. nonce: YI1hdL
+.. section: Library
+
+The ``P.args`` and ``P.kwargs`` attributes of :class:`typing.ParamSpec` are
+now instances of the new classes :class:`typing.ParamSpecArgs` and
+:class:`typing.ParamSpecKwargs`, which enables a more useful ``repr()``.
+Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 43731
+.. date: 2021-04-08-15-19-20
+.. nonce: nnVd3h
+.. section: Library
+
+Add an ``encoding`` parameter :func:`logging.fileConfig()`.
+
+..
+
+.. bpo: 43712
+.. date: 2021-04-08-12-25-08
+.. nonce: f8WXCX
+.. section: Library
+
+Add ``encoding`` and ``errors`` parameters to :func:`fileinput.input` and
+:class:`fileinput.FileInput`.
+
+..
+
+.. bpo: 38659
+.. date: 2021-04-08-11-47-31
+.. nonce: r_HFnU
+.. section: Library
+
+A ``simple_enum`` decorator is added to the ``enum`` module to convert a
+normal class into an Enum. ``test_simple_enum`` added to test simple enums
+against a corresponding normal Enum. Standard library modules updated to
+use ``simple_enum``.
+
+..
+
+.. bpo: 43764
+.. date: 2021-04-08-09-59-20
+.. nonce: tHjO60
+.. section: Library
+
+Fix an issue where :data:`~object.__match_args__` generation could fail for
+some :mod:`dataclasses`.
+
+..
+
+.. bpo: 43752
+.. date: 2021-04-06-21-18-29
+.. nonce: K7qmAF
+.. section: Library
+
+Fix :mod:`sqlite3` regression for zero-sized blobs with converters, where
+``b""`` was returned instead of ``None``. The regression was introduced by
+PR 24723. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43655
+.. date: 2021-04-04-20-51-19
+.. nonce: LwGy8R
+.. section: Library
+
+:mod:`tkinter` dialog windows are now recognized as dialogs by window
+managers on macOS and X Window.
+
+..
+
+.. bpo: 43723
+.. date: 2021-04-03-18-03-44
+.. nonce: uBhBZS
+.. section: Library
+
+The following ``threading`` methods are now deprecated and should be
+replaced:
+
+- ``currentThread`` => :func:`threading.current_thread`
+
+- ``activeCount`` => :func:`threading.active_count`
+
+- ``Condition.notifyAll`` => :meth:`threading.Condition.notify_all`
+
+- ``Event.isSet`` => :meth:`threading.Event.is_set`
+
+- ``Thread.setName`` => :attr:`threading.Thread.name`
+
+- ``thread.getName`` => :attr:`threading.Thread.name`
+
+- ``Thread.isDaemon`` => :attr:`threading.Thread.daemon`
+
+- ``Thread.setDaemon`` => :attr:`threading.Thread.daemon`
+
+Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 2135
+.. date: 2021-04-03-15-24-59
+.. nonce: xmDAYJ
+.. section: Library
+
+Deprecate find_module() and find_loader() implementations in importlib and
+zipimport.
+
+..
+
+.. bpo: 43534
+.. date: 2021-03-18-15-46-08
+.. nonce: vPE9Us
+.. section: Library
+
+:func:`turtle.textinput` and :func:`turtle.numinput` create now a transient
+window working on behalf of the canvas window.
+
+..
+
+.. bpo: 43532
+.. date: 2021-03-17-19-06-45
+.. nonce: W2Ntnm
+.. section: Library
+
+Add the ability to specify keyword-only fields to dataclasses. These fields
+will become keyword-only arguments to the generated __init__.
+
+..
+
+.. bpo: 43522
+.. date: 2021-03-16-22-37-32
+.. nonce: dhNwOu
+.. section: Library
+
+Fix problem with :attr:`~ssl.SSLContext.hostname_checks_common_name`.
+OpenSSL does not copy hostflags from *struct SSL_CTX* to *struct SSL*.
+
+..
+
+.. bpo: 8978
+.. date: 2021-03-13-14-02-07
+.. nonce: CRxG-O
+.. section: Library
+
+Improve error message for :func:`tarfile.open` when :mod:`lzma` / :mod:`bz2`
+are unavailable. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 42967
+.. date: 2021-03-11-00-31-41
+.. nonce: 2PeQRw
+.. section: Library
+
+Allow :class:`bytes` ``separator`` argument in ``urllib.parse.parse_qs`` and
+``urllib.parse.parse_qsl`` when parsing :class:`str` query strings.
+Previously, this raised a ``TypeError``.
+
+..
+
+.. bpo: 43296
+.. date: 2021-03-01-13-01-33
+.. nonce: p_gU6T
+.. section: Library
+
+Improve :mod:`sqlite3` error handling: ``sqlite3_value_blob()`` errors that
+set ``SQLITE_NOMEM`` now raise :exc:`MemoryError`. Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 43312
+.. date: 2021-02-25-14-43-59
+.. nonce: 6dg9_2
+.. section: Library
+
+New functions :func:`sysconfig.get_preferred_scheme` and
+:func:`sysconfig.get_default_scheme` are added to query a platform for its
+preferred "user", "home", and "prefix" (default) scheme names.
+
+..
+
+.. bpo: 43265
+.. date: 2021-02-19-22-24-33
+.. nonce: MyAzCH
+.. section: Library
+
+Improve :meth:`sqlite3.Connection.backup` error handling. The error message
+for non-existent target database names is now ``unknown database <database
+name>`` instead of ``SQL logic error``. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 41282
+.. date: 2021-02-16-13-18-38
+.. nonce: GK9a0l
+.. section: Library
+
+Install schemes in :mod:`distutils.command.install` are now loaded from
+:mod:`sysconfig`.
+
+..
+
+.. bpo: 41282
+.. date: 2021-02-15-12-52-23
+.. nonce: SenEje
+.. section: Library
+
+:mod:`distutils.sysconfig` has been merged to :mod:`sysconfig`.
+
+..
+
+.. bpo: 43176
+.. date: 2021-02-09-07-24-29
+.. nonce: bocNQn
+.. section: Library
+
+Fixed processing of a dataclass that inherits from a frozen dataclass with
+no fields. It is now correctly detected as an error.
+
+..
+
+.. bpo: 43080
+.. date: 2021-01-31-00-23-13
+.. nonce: -fDg4Q
+.. section: Library
+
+:mod:`pprint` now has support for :class:`dataclasses.dataclass`. Patch by
+Lewis Gaul.
+
+..
+
+.. bpo: 39950
+.. date: 2021-01-22-00-15-37
+.. nonce: NzLVaR
+.. section: Library
+
+Add `pathlib.Path.hardlink_to()` method that supersedes `link_to()`. The new
+method has the same argument order as `symlink_to()`.
+
+..
+
+.. bpo: 42904
+.. date: 2021-01-12-23-17-02
+.. nonce: -4qkTD
+.. section: Library
+
+:func:`typing.get_type_hints` now checks the local namespace of a class when
+evaluating :pep:`563` annotations inside said class.
+
+..
+
+.. bpo: 42269
+.. date: 2021-01-08-22-32-13
+.. nonce: W5v8z4
+.. section: Library
+
+Add ``slots`` parameter to ``dataclasses.dataclass`` decorator to
+automatically generate ``__slots__`` for class. Patch provided by Yurii
+Karabas.
+
+..
+
+.. bpo: 39529
+.. date: 2020-12-06-20-21-16
+.. nonce: 9Zrg43
+.. section: Library
+
+Deprecated use of :func:`asyncio.get_event_loop` without running event loop.
+Emit deprecation warning for :mod:`asyncio` functions which implicitly
+create a :class:`~asyncio.Future` or :class:`~asyncio.Task` objects if there
+is no running event loop and no explicit *loop* argument is passed:
+:func:`~asyncio.ensure_future`, :func:`~asyncio.wrap_future`,
+:func:`~asyncio.gather`, :func:`~asyncio.shield`,
+:func:`~asyncio.as_completed` and constructors of :class:`~asyncio.Future`,
+:class:`~asyncio.Task`, :class:`~asyncio.StreamReader`,
+:class:`~asyncio.StreamReaderProtocol`.
+
+..
+
+.. bpo: 18369
+.. date: 2020-11-19-09-52-24
+.. nonce: qzvYH2
+.. section: Library
+
+Certificate and PrivateKey classes were added to the ssl module.
+Certificates and keys can now be loaded from memory buffer, too.
+
+..
+
+.. bpo: 41486
+.. date: 2020-10-16-15-34-30
+.. nonce: Mu9Iit
+.. section: Library
+
+Use a new output buffer management code for :mod:`bz2` / :mod:`lzma` /
+:mod:`zlib` modules, and add ``.readall()`` function to
+``_compression.DecompressReader`` class. These bring some performance
+improvements. Patch by Ma Lin.
+
+..
+
+.. bpo: 31870
+.. date: 2020-09-15-23-44-07
+.. nonce: nVwd38
+.. section: Library
+
+The :func:`ssl.get_server_certificate` function now has a *timeout*
+parameter.
+
+..
+
+.. bpo: 41735
+.. date: 2020-09-07-11-15-15
+.. nonce: NKqGKy
+.. section: Library
+
+Fix thread locks in zlib module may go wrong in rare case. Patch by Ma Lin.
+
+..
+
+.. bpo: 36470
+.. date: 2020-06-13-23-33-32
+.. nonce: oi6Kdb
+.. section: Library
+
+Fix dataclasses with ``InitVar``\s and :func:`~dataclasses.replace()`. Patch
+by Claudiu Popa.
+
+..
+
+.. bpo: 40849
+.. date: 2020-06-02-21-32-33
+.. nonce: zpeKx3
+.. section: Library
+
+Expose X509_V_FLAG_PARTIAL_CHAIN ssl flag
+
+..
+
+.. bpo: 35114
+.. date: 2020-05-17-14-10-24
+.. nonce: uLIHfn
+.. section: Library
+
+:func:`ssl.RAND_status` now returns a boolean value (as documented) instead
+of ``1`` or ``0``.
+
+..
+
+.. bpo: 39906
+.. date: 2020-03-30-00-13-27
+.. nonce: eaR3fN
+.. section: Library
+
+:meth:`pathlib.Path.stat` and :meth:`~pathlib.Path.chmod` now accept a
+*follow_symlinks* keyword-only argument for consistency with corresponding
+functions in the :mod:`os` module.
+
+..
+
+.. bpo: 39899
+.. date: 2020-03-09-20-36-07
+.. nonce: 9adF3E
+.. section: Library
+
+:func:`os.path.expanduser()` now refuses to guess Windows home directories
+if the basename of current user's home directory does not match their
+username.
+
+:meth:`pathlib.Path.expanduser()` and :meth:`~pathlib.Path.home()` now
+consistently raise :exc:`RuntimeError` exception when a home directory
+cannot be resolved. Previously a :exc:`KeyError` exception could be raised
+on Windows when the ``"USERNAME"`` environment variable was unset.
+
+..
+
+.. bpo: 36076
+.. date: 2019-10-16-17-21-53
+.. nonce: FGeQQT
+.. section: Library
+
+Added SNI support to :func:`ssl.get_server_certificate`.
+
+..
+
+.. bpo: 38490
+.. date: 2019-10-16-08-08-14
+.. nonce: QbDXEF
+.. section: Library
+
+Covariance, Pearson's correlation, and simple linear regression
+functionality was added to statistics module. Patch by Tymoteusz Wołodźko.
+
+..
+
+.. bpo: 33731
+.. date: 2019-08-14-13-19-50
+.. nonce: 9esS0d
+.. section: Library
+
+Provide a locale.localize() function, which converts a normalized number
+string into a locale format.
+
+..
+
+.. bpo: 32745
+.. date: 2018-08-09-23-47-10
+.. nonce: iQi9hI
+.. section: Library
+
+Fix a regression in the handling of ctypes' :data:`ctypes.c_wchar_p` type:
+embedded null characters would cause a :exc:`ValueError` to be raised. Patch
+by Zackery Spytz.
+
+..
+
+.. bpo: 43987
+.. date: 2021-04-30-04-27-02
+.. nonce: 1DftVa
+.. section: Documentation
+
+Add "Annotations Best Practices" document as a new HOWTO.
+
+..
+
+.. bpo: 43977
+.. date: 2021-04-29-15-06-03
+.. nonce: K5aSl1
+.. section: Documentation
+
+Document the new :const:`Py_TPFLAGS_MAPPING` and
+:const:`Py_TPFLAGS_SEQUENCE` type flags.
+
+..
+
+.. bpo: 43959
+.. date: 2021-04-27-22-22-22
+.. nonce: n2261q
+.. section: Documentation
+
+The documentation on the PyContextVar C-API was clarified.
+
+..
+
+.. bpo: 43938
+.. date: 2021-04-25-22-44-27
+.. nonce: nC660q
+.. section: Documentation
+
+Update dataclasses documentation to express that FrozenInstanceError is
+derived from AttributeError.
+
+..
+
+.. bpo: 43778
+.. date: 2021-04-08-22-42-02
+.. nonce: MszRnY
+.. section: Documentation
+
+Fix the Sphinx glossary_search extension: create the _static/ sub-directory
+if it doesn't exist.
+
+..
+
+.. bpo: 43755
+.. date: 2021-04-06-14-55-45
+.. nonce: 1m0fGq
+.. section: Documentation
+
+Update documentation to reflect that unparenthesized lambda expressions can
+no longer be the expression part in an ``if`` clause in comprehensions and
+generator expressions since Python 3.9.
+
+..
+
+.. bpo: 43739
+.. date: 2021-04-06-07-05-49
+.. nonce: L4HjiX
+.. section: Documentation
+
+Fixing the example code in Doc/extending/extending.rst to declare and
+initialize the pmodule variable to be of the right type.
+
+..
+
+.. bpo: 43961
+.. date: 2021-04-28-13-21-52
+.. nonce: gNchls
+.. section: Tests
+
+Fix test_logging.test_namer_rotator_inheritance() on Windows: use
+:func:`os.replace` rather than :func:`os.rename`. Patch by Victor Stinner.
+
+..
+
+.. bpo: 43842
+.. date: 2021-04-16-14-07-40
+.. nonce: w60GAH
+.. section: Tests
+
+Fix a race condition in the SMTP test of test_logging. Don't close a file
+descriptor (socket) from a different thread while asyncore.loop() is polling
+the file descriptor. Patch by Victor Stinner.
+
+..
+
+.. bpo: 43843
+.. date: 2021-04-14-13-22-44
+.. nonce: ruIQKD
+.. section: Tests
+
+:mod:`test.libregrtest` now marks a test as ENV_CHANGED (altered the
+execution environment) if a thread raises an exception but does not catch
+it. It sets a hook on :func:`threading.excepthook`. Use
+``--fail-env-changed`` option to mark the test as failed. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 43811
+.. date: 2021-04-12-11-14-28
+.. nonce: vGNbnD
+.. section: Tests
+
+Tests multiple OpenSSL versions on GitHub Actions. Use ccache to speed up
+testing.
+
+..
+
+.. bpo: 43791
+.. date: 2021-04-09-15-10-38
+.. nonce: 4KxiXK
+.. section: Tests
+
+OpenSSL 3.0.0: Disable testing of legacy protocols TLS 1.0 and 1.1. Tests
+are failing with TLSV1_ALERT_INTERNAL_ERROR.
+
+..
+
+.. bpo: 43567
+.. date: 2021-03-31-19-50-01
+.. nonce: vd0a-p
+.. section: Build
+
+Improved generated code refresh (AST/tokens/opcodes/keywords) on Windows.
+
+..
+
+.. bpo: 43669
+.. date: 2021-03-30-14-19-39
+.. nonce: lWMUYx
+.. section: Build
+
+Implement :pep:`644`. Python now requires OpenSSL 1.1.1 or newer.
+
+..
+
+.. bpo: 35306
+.. date: 2021-04-22-21-37-41
+.. nonce: 10kSR-
+.. section: Windows
+
+Adds additional arguments to :func:`os.startfile` function.
+
+..
+
+.. bpo: 43538
+.. date: 2021-04-22-20-39-49
+.. nonce: F0Cg6X
+.. section: Windows
+
+Avoid raising errors from :meth:`pathlib.Path.exists()` when passed an
+invalid filename.
+
+..
+
+.. bpo: 38822
+.. date: 2021-04-22-19-49-20
+.. nonce: jgdPmq
+.. section: Windows
+
+Fixed :func:`os.stat` failing on inaccessible directories with a trailing
+slash, rather than falling back to the parent directory's metadata. This
+implicitly affected :func:`os.path.exists` and :func:`os.path.isdir`.
+
+..
+
+.. bpo: 26227
+.. date: 2021-04-21-23-37-34
+.. nonce: QMY_eA
+.. section: Windows
+
+Fixed decoding of host names in :func:`socket.gethostbyaddr` and
+:func:`socket.gethostbyname_ex`.
+
+..
+
+.. bpo: 40432
+.. date: 2021-04-20-23-07-22
+.. nonce: 9OFpoq
+.. section: Windows
+
+Updated pegen regeneration script on Windows to find and use Python 3.8 or
+higher. Prior to this, pegen regeneration already required 3.8 or higher,
+but the script may have used lower versions of Python.
+
+..
+
+.. bpo: 43745
+.. date: 2021-04-06-12-27-33
+.. nonce: rdKNda
+.. section: Windows
+
+Actually updates Windows release to OpenSSL 1.1.1k. Earlier releases were
+mislabelled and actually included 1.1.1i again.
+
+..
+
+.. bpo: 43652
+.. date: 2021-04-03-18-54-31
+.. nonce: gNmfVN
+.. section: Windows
+
+Update Tcl and Tk to 8.6.11 in Windows installer.
+
+..
+
+.. bpo: 43492
+.. date: 2021-03-15-11-34-33
+.. nonce: AsYnVX
+.. section: Windows
+
+Upgrade Windows installer to use SQLite 3.35.5.
+
+..
+
+.. bpo: 30555
+.. date: 2017-12-16-12-23-51
+.. nonce: 3ybjly
+.. section: Windows
+
+Fix ``WindowsConsoleIO`` errors in the presence of fd redirection. Patch by
+Segev Finer.
+
+..
+
+.. bpo: 42119
+.. date: 2021-05-02-21-03-27
+.. nonce: Y7BSX_
+.. section: macOS
+
+Fix check for macOS SDK paths when building Python. Narrow search to match
+contents of SDKs, namely only files in ``/System/Library``,
+``/System/IOSSupport``, and ``/usr`` other than ``/usr/local``. Previously,
+anything under ``/System`` was assumed to be in an SDK which causes problems
+with the new file system layout in 10.15+ where user file systems may appear
+to be mounted under ``/System``. Paths in ``/Library`` were also
+incorrectly treated as SDK locations.
+
+..
+
+.. bpo: 43568
+.. date: 2021-05-02-19-50-52
+.. nonce: AeLNBd
+.. section: macOS
+
+Drop support for MACOSX_DEPLOYMENT_TARGET < 10.3
+
+..
+
+.. bpo: 44009
+.. date: 2021-05-02-03-45-30
+.. nonce: uvhmlh
+.. section: macOS
+
+Provide "python3.x-intel64" executable to allow reliably forcing macOS
+universal2 framework builds to run under Rosetta 2 Intel-64 emulation on
+Apple Silicon Macs. This can be useful for testing or when universal2
+wheels are not yet available.
+
+..
+
+.. bpo: 43851
+.. date: 2021-04-15-01-20-45
+.. nonce: sDI60Y
+.. section: macOS
+
+Build SQLite with ``SQLITE_OMIT_AUTOINIT`` on macOS. Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 43492
+.. date: 2021-03-15-11-32-23
+.. nonce: 1ZRcV9
+.. section: macOS
+
+Update macOS installer to use SQLite 3.35.4.
+
+..
+
+.. bpo: 42235
+.. date: 2020-11-01-17-37-16
+.. nonce: A97_BN
+.. section: macOS
+
+``Mac/BuildScript/build-installer.py`` will now use "--enable-optimizations"
+and ``--with-lto`` when building on macOS 10.15 or later.
+
+..
+
+.. bpo: 37903
+.. date: 2021-05-02-20-25-53
+.. nonce: VQ6VTU
+.. section: IDLE
+
+Add mouse actions to the shell sidebar. Left click and optional drag
+selects one or more lines, as with the editor line number sidebar. Right
+click after selecting raises a context menu with 'copy with prompts'. This
+zips together prompts from the sidebar with lines from the selected text.
+
+..
+
+.. bpo: 43981
+.. date: 2021-04-30-17-59-56
+.. nonce: 3EFl1H
+.. section: IDLE
+
+Fix reference leak in test_sidebar and test_squeezer.
+Patches by Terry Jan Reedy and Pablo Galindo
+
+..
+
+.. bpo: 37892
+.. date: 2021-04-29-02-40-41
+.. nonce: bgW2fk
+.. section: IDLE
+
+Indent IDLE Shell input with spaces instead of tabs
+
+..
+
+.. bpo: 43655
+.. date: 2021-04-04-20-52-07
+.. nonce: HSyaKH
+.. section: IDLE
+
+IDLE dialog windows are now recognized as dialogs by window managers on
+macOS and X Window.
+
+..
+
+.. bpo: 37903
+.. date: 2019-08-24-23-49-36
+.. nonce: 4xjast
+.. section: IDLE
+
+IDLE's shell now shows prompts in a separate side-bar.
+
+..
+
+.. bpo: 43916
+.. date: 2021-04-29-17-35-48
+.. nonce: wvWt23
+.. section: C API
+
+Add a new :c:data:`Py_TPFLAGS_DISALLOW_INSTANTIATION` type flag to disallow
+creating type instances. Patch by Victor Stinner.
+
+..
+
+.. bpo: 43774
+.. date: 2021-04-29-10-17-21
+.. nonce: 5MGfgN
+.. section: C API
+
+Remove the now unused ``PYMALLOC_DEBUG`` macro. Debug hooks on memory
+allocators are now installed by default if Python is built in debug mode (if
+``Py_DEBUG`` macro is defined). Moreover, they can now be used on Python
+build in release mode (ex: using ``PYTHONMALLOC=debug`` environment
+variable).
+
+..
+
+.. bpo: 43962
+.. date: 2021-04-28-13-13-07
+.. nonce: 9Jzs5X
+.. section: C API
+
+_PyInterpreterState_IDIncref() now calls _PyInterpreterState_IDInitref() and
+always increments id_refcount. Previously, calling
+_xxsubinterpreters.get_current() could create an id_refcount inconsistency
+when a _xxsubinterpreters.InterpreterID object was deallocated. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 28254
+.. date: 2021-04-28-12-33-44
+.. nonce: a2561e
+.. section: C API
+
+Add new C-API functions to control the state of the garbage collector:
+:c:func:`PyGC_Enable()`, :c:func:`PyGC_Disable()`,
+:c:func:`PyGC_IsEnabled()`, corresponding to the functions in the :mod:`gc`
+module.
+
+..
+
+.. bpo: 43908
+.. date: 2021-04-22-10-46-40
+.. nonce: Co3YhZ
+.. section: C API
+
+Introduce :const:`Py_TPFLAGS_IMMUTABLETYPE` flag for immutable type objects,
+and modify :c:func:`PyType_Ready` to set it for static types. Patch by
+Erlend E. Aasland.
+
+..
+
+.. bpo: 43795
+.. date: 2021-04-20-15-06-29
+.. nonce: y0IP4c
+.. section: C API
+
+:c:func:`PyMem_Calloc` is now available in the limited C API
+(``Py_LIMITED_API``).
+
+..
+
+.. bpo: 43868
+.. date: 2021-04-16-18-15-56
+.. nonce: twQ7KH
+.. section: C API
+
+:c:func:`PyOS_ReadlineFunctionPointer` is no longer exported by limited C
+API headers and by ``python3.dll`` on Windows. Like any function that takes
+``FILE*``, it is not part of the stable ABI.
+
+..
+
+.. bpo: 43795
+.. date: 2021-04-09-18-19-07
+.. nonce: l0yobT
+.. section: C API
+
+Stable ABI and limited API definitions are generated from a central manifest
+(:pep:`652`).
+
+..
+
+.. bpo: 43753
+.. date: 2021-04-06-20-52-44
+.. nonce: xUsHp1
+.. section: C API
+
+Add the :c:func:`Py_Is(x, y) <Py_Is>` function to test if the *x* object is
+the *y* object, the same as ``x is y`` in Python. Add also the
+:c:func:`Py_IsNone`, :c:func:`Py_IsTrue`, :c:func:`Py_IsFalse` functions to
+test if an object is, respectively, the ``None`` singleton, the ``True``
+singleton or the ``False`` singleton. Patch by Victor Stinner.
--- /dev/null
+.. date: 2022-09-28-17-09-37
+.. gh-issue: 97616
+.. nonce: K1e3Xs
+.. release date: 2022-10-24
+.. section: Security
+
+Fix multiplying a list by an integer (``list *= int``): detect the integer
+overflow when the new allocated length is close to the maximum size. Issue
+reported by Jordan Limor. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-09-07-10-42-00
+.. gh-issue: 97514
+.. nonce: Yggdsl
+.. section: Security
+
+On Linux the :mod:`multiprocessing` module returns to using filesystem
+backed unix domain sockets for communication with the *forkserver* process
+instead of the Linux abstract socket namespace. Only code that chooses to
+use the :ref:`"forkserver" start method <multiprocessing-start-methods>` is
+affected.
+
+Abstract sockets have no permissions and could allow any user on the system
+in the same `network namespace
+<https://man7.org/linux/man-pages/man7/network_namespaces.7.html>`_ (often
+the whole system) to inject code into the multiprocessing *forkserver*
+process. This was a potential privilege escalation. Filesystem based socket
+permissions restrict this to the *forkserver* process user as was the
+default in Python 3.8 and earlier.
+
+This prevents Linux `CVE-2022-42919
+<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-42919>`_.
+
+..
+
+.. date: 2022-10-06-02-11-34
+.. gh-issue: 97002
+.. nonce: Zvsk71
+.. section: Core and Builtins
+
+Fix an issue where several frame objects could be backed by the same
+interpreter frame, possibly leading to corrupted memory and hard crashes of
+the interpreter.
+
+..
+
+.. date: 2022-10-03-13-35-48
+.. gh-issue: 97752
+.. nonce: 0xTjJY
+.. section: Core and Builtins
+
+Fix possible data corruption or crashes when accessing the ``f_back`` member
+of newly-created generator or coroutine frames.
+
+..
+
+.. date: 2022-09-21-16-06-37
+.. gh-issue: 96975
+.. nonce: BmE0XY
+.. section: Core and Builtins
+
+Fix a crash occurring when :c:func:`PyEval_GetFrame` is called while the
+topmost Python frame is in a partially-initialized state.
+
+..
+
+.. date: 2022-09-21-14-38-31
+.. gh-issue: 96848
+.. nonce: WuoLzU
+.. section: Core and Builtins
+
+Fix command line parsing: reject :option:`-X int_max_str_digits <-X>` option
+with no value (invalid) when the :envvar:`PYTHONINTMAXSTRDIGITS` environment
+variable is set to a valid limit. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-09-18-08-47-40
+.. gh-issue: 96821
+.. nonce: Co2iOq
+.. section: Core and Builtins
+
+Fix undefined behaviour in ``_testcapimodule.c``.
+
+..
+
+.. date: 2022-09-16-19-02-40
+.. gh-issue: 95778
+.. nonce: cJmnst
+.. section: Core and Builtins
+
+When :exc:`ValueError` is raised if an integer is larger than the limit,
+mention the :func:`sys.set_int_max_str_digits` function in the error
+message. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-09-05-19-20-44
+.. gh-issue: 96587
+.. nonce: bVxhX2
+.. section: Core and Builtins
+
+Correctly raise ``SyntaxError`` on exception groups (:pep:`654`) on python
+versions prior to 3.11
+
+..
+
+.. bpo: 42316
+.. date: 2020-11-15-02-08-43
+.. nonce: LqdkWK
+.. section: Core and Builtins
+
+Document some places where an assignment expression needs parentheses.
+
+..
+
+.. date: 2022-10-16-15-31-50
+.. gh-issue: 98331
+.. nonce: Y5kPOX
+.. section: Library
+
+Update the bundled copies of pip and setuptools to versions 22.3 and 65.5.0
+respectively.
+
+..
+
+.. date: 2022-10-06-23-42-00
+.. gh-issue: 90985
+.. nonce: s280JY
+.. section: Library
+
+Earlier in 3.11 we deprecated ``asyncio.Task.cancel("message")``. We
+realized we were too harsh, and have undeprecated it.
+
+..
+
+.. date: 2022-09-25-23-24-52
+.. gh-issue: 97545
+.. nonce: HZLSNt
+.. section: Library
+
+Make Semaphore run faster.
+
+..
+
+.. date: 2022-09-24-18-56-23
+.. gh-issue: 96865
+.. nonce: o9WUkW
+.. section: Library
+
+fix Flag to use boundary CONFORM
+
+This restores previous Flag behavior of allowing flags with non-sequential
+values to be combined; e.g.
+
+class Skip(Flag): TWO = 2 EIGHT = 8
+
+Skip.TWO | Skip.EIGHT -> <Skip.TWO|EIGHT: 10>
+
+..
+
+.. date: 2022-05-25-15-57-39
+.. gh-issue: 90155
+.. nonce: YMstB5
+.. section: Library
+
+Fix broken :class:`asyncio.Semaphore` when acquire is cancelled.
+
+..
+
+.. date: 2022-10-02-10-58-52
+.. gh-issue: 97741
+.. nonce: 39l023
+.. section: Documentation
+
+Fix ``!`` in c domain ref target syntax via a ``conf.py`` patch, so it works
+as intended to disable ref target resolution.
+
+..
+
+.. date: 2022-05-20-18-42-10
+.. gh-issue: 93031
+.. nonce: c2RdJe
+.. section: Documentation
+
+Update tutorial introduction output to use 3.10+ SyntaxError invalid range.
+
+..
+
+.. date: 2022-10-20-17-49-50
+.. gh-issue: 95027
+.. nonce: viRpJB
+.. section: Tests
+
+On Windows, when the Python test suite is run with the ``-jN`` option, the
+ANSI code page is now used as the encoding for the stdout temporary file,
+rather than using UTF-8 which can lead to decoding errors. Patch by Victor
+Stinner.
+
+..
+
+.. date: 2022-09-11-14-23-49
+.. gh-issue: 96729
+.. nonce: W4uBWL
+.. section: Build
+
+Ensure that Windows releases built with ``Tools\msi\buildrelease.bat`` are
+upgradable to and from official Python releases.
+
+..
+
+.. date: 2022-10-19-20-00-28
+.. gh-issue: 98360
+.. nonce: O2m6YG
+.. section: Windows
+
+Fixes :mod:`multiprocessing` spawning child processes on Windows from a
+virtual environment to ensure that child processes that also use
+:mod:`multiprocessing` to spawn more children will recognize that they are
+in a virtual environment.
+
+..
+
+.. date: 2022-10-19-19-35-37
+.. gh-issue: 98414
+.. nonce: FbHZuS
+.. section: Windows
+
+Fix :file:`py.exe` launcher handling of ``-V:<company>/`` option when
+default preferences have been set in environment variables or configuration
+files.
+
+..
+
+.. date: 2022-09-29-23-08-49
+.. gh-issue: 90989
+.. nonce: no89Q2
+.. section: Windows
+
+Clarify some text in the Windows installer.
+
+..
+
+.. date: 2022-10-05-15-26-58
+.. gh-issue: 97897
+.. nonce: Rf-C6u
+.. section: macOS
+
+The macOS 13 SDK includes support for the ``mkfifoat`` and ``mknodat``
+system calls. Using the ``dir_fd`` option with either :func:`os.mkfifo` or
+:func:`os.mknod` could result in a segfault if cpython is built with the
+macOS 13 SDK but run on an earlier version of macOS. Prevent this by adding
+runtime support for detection of these system calls ("weaklinking") as is
+done for other newer syscalls on macOS.
--- /dev/null
+.. bpo: 42278
+.. date: 2021-08-29-12-39-44
+.. nonce: jvmQz_
+.. release date: 2021-10-05
+.. section: Security
+
+Replaced usage of :func:`tempfile.mktemp` with
+:class:`~tempfile.TemporaryDirectory` to avoid a potential race condition.
+
+..
+
+.. bpo: 44600
+.. date: 2021-07-25-20-04-54
+.. nonce: 0WMldg
+.. section: Security
+
+Fix incorrect line numbers while tracing some failed patterns in :ref:`match
+<match>` statements. Patch by Charles Burkland.
+
+..
+
+.. bpo: 41180
+.. date: 2021-06-29-23-40-22
+.. nonce: uTWHv_
+.. section: Security
+
+Add auditing events to the :mod:`marshal` module, and stop raising
+``code.__init__`` events for every unmarshalled code object. Directly
+instantiated code objects will continue to raise an event, and audit event
+handlers should inspect or collect the raw marshal data. This reduces a
+significant performance overhead when loading from ``.pyc`` files.
+
+..
+
+.. bpo: 44394
+.. date: 2021-06-29-02-45-53
+.. nonce: A220N1
+.. section: Security
+
+Update the vendored copy of libexpat to 2.4.1 (from 2.2.8) to get the fix
+for the CVE-2013-0340 "Billion Laughs" vulnerability. This copy is most used
+on Windows and macOS.
+
+..
+
+.. bpo: 43124
+.. date: 2021-05-08-11-50-46
+.. nonce: 2CTM6M
+.. section: Security
+
+Made the internal ``putcmd`` function in :mod:`smtplib` sanitize input for
+presence of ``\r`` and ``\n`` characters to avoid (unlikely) command
+injection.
+
+..
+
+.. bpo: 44022
+.. date: 2021-05-05-17-37-04
+.. nonce: bS3XJ9
+.. section: Security
+
+:mod:`http.client` now avoids infinitely reading potential HTTP headers
+after a ``100 Continue`` status response from the server.
+
+..
+
+.. bpo: 43760
+.. date: 2021-10-04-16-11-50
+.. nonce: R9QoUv
+.. section: Core and Builtins
+
+The number of hardware branches per instruction dispatch is reduced from two
+to one by adding a special instruction for tracing. Patch by Mark Shannon.
+
+..
+
+.. bpo: 45061
+.. date: 2021-09-21-22-27-25
+.. nonce: 5IOUf0
+.. section: Core and Builtins
+
+Add a deallocator to the bool type to detect refcount bugs in C extensions
+which call Py_DECREF(Py_True) or Py_DECREF(Py_False) by mistake. Detect also
+refcount bugs when the empty tuple singleton or the Unicode empty string
+singleton is destroyed by mistake. Patch by Victor Stinner.
+
+..
+
+.. bpo: 24076
+.. date: 2021-09-20-10-02-12
+.. nonce: ZFgFSj
+.. section: Core and Builtins
+
+sum() was further optimised for summing up single digit integers.
+
+..
+
+.. bpo: 45190
+.. date: 2021-09-14-10-02-12
+.. nonce: ZFRgSj
+.. section: Core and Builtins
+
+Update Unicode databases to Unicode 14.0.0.
+
+..
+
+.. bpo: 45167
+.. date: 2021-09-14-09-23-59
+.. nonce: CPSSoV
+.. section: Core and Builtins
+
+Fix deepcopying of :class:`types.GenericAlias` objects.
+
+..
+
+.. bpo: 45155
+.. date: 2021-09-09-15-05-17
+.. nonce: JRw9TG
+.. section: Core and Builtins
+
+:meth:`int.to_bytes` and :meth:`int.from_bytes` now take a default value of
+``"big"`` for the ``byteorder`` argument. :meth:`int.to_bytes` also takes a
+default value of ``1`` for the ``length`` argument.
+
+..
+
+.. bpo: 44219
+.. date: 2021-09-09-10-32-33
+.. nonce: WiYyjz
+.. section: Core and Builtins
+
+Release the GIL while performing ``isatty`` system calls on arbitrary file
+descriptors. In particular, this affects :func:`os.isatty`,
+:func:`os.device_encoding` and :class:`io.TextIOWrapper`. By extension,
+:func:`io.open` in text mode is also affected. This change solves a deadlock
+in :func:`os.isatty`. Patch by Vincent Michel in :issue:`44219`.
+
+..
+
+.. bpo: 44959
+.. date: 2021-09-08-08-29-41
+.. nonce: OSwwPf
+.. section: Core and Builtins
+
+Added fallback to extension modules with '.sl' suffix on HP-UX
+
+..
+
+.. bpo: 45121
+.. date: 2021-09-07-17-10-16
+.. nonce: iG-Hsf
+.. section: Core and Builtins
+
+Fix issue where ``Protocol.__init__`` raises ``RecursionError`` when it's
+called directly or via ``super()``. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 44348
+.. date: 2021-09-07-00-21-04
+.. nonce: f8w_Td
+.. section: Core and Builtins
+
+The deallocator function of the :exc:`BaseException` type now uses the
+trashcan mechanism to prevent stack overflow. For example, when a
+:exc:`RecursionError` instance is raised, it can be linked to another
+RecursionError through the ``__context__`` attribute or the
+``__traceback__`` attribute, and then a chain of exceptions is created. When
+the chain is destroyed, nested deallocator function calls can crash with a
+stack overflow if the chain is too long compared to the available stack
+memory. Patch by Victor Stinner.
+
+..
+
+.. bpo: 45123
+.. date: 2021-09-06-21-52-45
+.. nonce: 8Eh9iI
+.. section: Core and Builtins
+
+Fix PyAiter_Check to only check for the __anext__ presence (not for
+__aiter__). Rename PyAiter_Check to PyAIter_Check, PyObject_GetAiter ->
+PyObject_GetAIter.
+
+..
+
+.. bpo: 1514420
+.. date: 2021-09-03-16-18-10
+.. nonce: 2Lumpj
+.. section: Core and Builtins
+
+Interpreter no longer attempts to open files with names in angle brackets
+(like "<string>" or "<stdin>") when formatting an exception.
+
+..
+
+.. bpo: 41031
+.. date: 2021-09-03-12-35-17
+.. nonce: yPSJEs
+.. section: Core and Builtins
+
+Match C and Python code formatting of unprintable exceptions and exceptions
+in the :mod:`__main__` module.
+
+..
+
+.. bpo: 37330
+.. date: 2021-09-02-01-28-01
+.. nonce: QDjM_l
+.. section: Core and Builtins
+
+:func:`open`, :func:`io.open`, :func:`codecs.open` and
+:class:`fileinput.FileInput` no longer accept ``'U'`` ("universal newline")
+in the file mode. This flag was deprecated since Python 3.3. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 45083
+.. date: 2021-09-01-23-55-49
+.. nonce: cLi9G3
+.. section: Core and Builtins
+
+When the interpreter renders an exception, its name now has a complete
+qualname. Previously only the class name was concatenated to the module
+name, which sometimes resulted in an incorrect full name being displayed.
+
+(This issue impacted only the C code exception rendering, the
+:mod:`traceback` module was using qualname already).
+
+..
+
+.. bpo: 34561
+.. date: 2021-09-01-19-21-48
+.. nonce: uMAVA-
+.. section: Core and Builtins
+
+List sorting now uses the merge-ordering strategy from Munro and Wild's
+``powersort()``. Unlike the former strategy, this is provably near-optimal
+in the entropy of the distribution of run lengths. Most uses of
+``list.sort()`` probably won't see a significant time difference, but may
+see significant improvements in cases where the former strategy was
+exceptionally poor. However, as these are all fast linear-time
+approximations to a problem that's inherently at best quadratic-time to
+solve truly optimally, it's also possible to contrive cases where the former
+strategy did better.
+
+..
+
+.. bpo: 45056
+.. date: 2021-09-01-16-55-43
+.. nonce: 7AK2d9
+.. section: Core and Builtins
+
+Compiler now removes trailing unused constants from co_consts.
+
+..
+
+.. bpo: 45020
+.. date: 2021-08-31-17-44-51
+.. nonce: ZPI_3L
+.. section: Core and Builtins
+
+Add a new command line option, "-X frozen_modules=[on|off]" to opt out of
+(or into) using optional frozen modules. This defaults to "on" (or "off" if
+it's running out of the source tree).
+
+..
+
+.. bpo: 45012
+.. date: 2021-08-31-11-09-52
+.. nonce: ueeOcx
+.. section: Core and Builtins
+
+In :mod:`posix`, release GIL during ``stat()``, ``lstat()``, and
+``fstatat()`` syscalls made by :func:`os.DirEntry.stat`. Patch by Stanisław
+Skonieczny.
+
+..
+
+.. bpo: 45018
+.. date: 2021-08-26-18-44-03
+.. nonce: pu8H9L
+.. section: Core and Builtins
+
+Fixed pickling of range iterators that iterated for over ``2**32`` times.
+
+..
+
+.. bpo: 45000
+.. date: 2021-08-25-23-17-32
+.. nonce: XjmyLl
+.. section: Core and Builtins
+
+A :exc:`SyntaxError` is now raised when trying to delete :const:`__debug__`.
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 44963
+.. date: 2021-08-25-23-07-10
+.. nonce: 5EET8y
+.. section: Core and Builtins
+
+Implement ``send()`` and ``throw()`` methods for ``anext_awaitable``
+objects. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44962
+.. date: 2021-08-23-19-55-08
+.. nonce: J00ftt
+.. section: Core and Builtins
+
+Fix a race in WeakKeyDictionary, WeakValueDictionary and WeakSet when two
+threads attempt to commit the last pending removal. This fixes
+asyncio.create_task and fixes a data loss in asyncio.run where
+shutdown_asyncgens is not run
+
+..
+
+.. bpo: 24234
+.. date: 2021-08-23-10-36-55
+.. nonce: MGVUQi
+.. section: Core and Builtins
+
+Implement the :meth:`__bytes__` special method on the :class:`bytes` type,
+so a bytes object ``b`` passes an ``isinstance(b, typing.SupportsBytes)``
+check.
+
+..
+
+.. bpo: 24234
+.. date: 2021-08-22-12-28-50
+.. nonce: n3oTdx
+.. section: Core and Builtins
+
+Implement the :meth:`__complex__` special method on the :class:`complex`
+type, so a complex number ``z`` passes an ``isinstance(z,
+typing.SupportsComplex)`` check.
+
+..
+
+.. bpo: 44954
+.. date: 2021-08-19-14-43-24
+.. nonce: dLn3lg
+.. section: Core and Builtins
+
+Fixed a corner case bug where the result of ``float.fromhex('0x.8p-1074')``
+was rounded the wrong way.
+
+..
+
+.. bpo: 44947
+.. date: 2021-08-18-19-09-28
+.. nonce: mcvGdS
+.. section: Core and Builtins
+
+Refine the syntax error for trailing commas in import statements. Patch by
+Pablo Galindo.
+
+..
+
+.. bpo: 44945
+.. date: 2021-08-18-11-14-38
+.. nonce: CO3s77
+.. section: Core and Builtins
+
+Specialize the BINARY_ADD instruction using the PEP 659 machinery. Adds five
+new instructions:
+
+* BINARY_ADD_ADAPTIVE
+* BINARY_ADD_FLOAT
+* BINARY_ADD_INT
+* BINARY_ADD_UNICODE
+* BINARY_ADD_UNICODE_INPLACE_FAST
+
+..
+
+.. bpo: 44929
+.. date: 2021-08-16-23-16-17
+.. nonce: qpMEky
+.. section: Core and Builtins
+
+Fix some edge cases of ``enum.Flag`` string representation in the REPL.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44914
+.. date: 2021-08-16-11-36-02
+.. nonce: 6Lgrx3
+.. section: Core and Builtins
+
+Class version tags are no longer recycled.
+
+This means that a version tag serves as a unique identifier for the state of
+a class. We rely on this for effective specialization of the LOAD_ATTR and
+other instructions.
+
+..
+
+.. bpo: 44698
+.. date: 2021-08-15-10-39-06
+.. nonce: lITKNc
+.. section: Core and Builtins
+
+Restore behaviour of complex exponentiation with integer-valued exponent of
+type :class:`float` or :class:`complex`.
+
+..
+
+.. bpo: 44895
+.. date: 2021-08-14-20-13-21
+.. nonce: Ic9m90
+.. section: Core and Builtins
+
+A debug variable :envvar:`PYTHONDUMPREFSFILE` is added for creating a dump
+file which is generated by :option:`--with-trace-refs`. Patch by Dong-hee
+Na.
+
+..
+
+.. bpo: 44900
+.. date: 2021-08-12-14-00-57
+.. nonce: w2gpwy
+.. section: Core and Builtins
+
+Add five superinstructions for PEP 659 quickening:
+
+* LOAD_FAST LOAD_FAST
+* STORE_FAST LOAD_FAST
+* LOAD_FAST LOAD_CONST
+* LOAD_CONST LOAD_FAST
+* STORE_FAST STORE_FAST
+
+..
+
+.. bpo: 44889
+.. date: 2021-08-11-20-45-02
+.. nonce: 2T3nTn
+.. section: Core and Builtins
+
+Initial implementation of adaptive specialization of ``LOAD_METHOD``. The
+following specialized forms were added:
+
+* ``LOAD_METHOD_CACHED``
+
+* ``LOAD_METHOD_MODULE``
+
+* ``LOAD_METHOD_CLASS``
+
+..
+
+.. bpo: 44890
+.. date: 2021-08-11-16-46-27
+.. nonce: PwNg8N
+.. section: Core and Builtins
+
+Specialization stats are always collected in debug builds.
+
+..
+
+.. bpo: 44885
+.. date: 2021-08-11-15-39-57
+.. nonce: i4noUO
+.. section: Core and Builtins
+
+Correct the ast locations of f-strings with format specs and repeated
+expressions. Patch by Pablo Galindo
+
+..
+
+.. bpo: 44878
+.. date: 2021-08-11-14-12-41
+.. nonce: pAbBfc
+.. section: Core and Builtins
+
+Remove the loop from the bytecode interpreter. All instructions end with a
+DISPATCH macro, so the loop is now redundant.
+
+..
+
+.. bpo: 44878
+.. date: 2021-08-11-12-03-52
+.. nonce: nEhjLi
+.. section: Core and Builtins
+
+Remove switch statement for interpreter loop when using computed gotos. This
+makes sure that we only have one dispatch table in the interpreter.
+
+..
+
+.. bpo: 44874
+.. date: 2021-08-09-19-05-20
+.. nonce: oOcfU4
+.. section: Core and Builtins
+
+Deprecate the old trashcan macros
+(``Py_TRASHCAN_SAFE_BEGIN``/``Py_TRASHCAN_SAFE_END``). They should be
+replaced by the new macros ``Py_TRASHCAN_BEGIN`` and ``Py_TRASHCAN_END``.
+
+..
+
+.. bpo: 44872
+.. date: 2021-08-09-16-16-03
+.. nonce: OKRlhK
+.. section: Core and Builtins
+
+Use new trashcan macros (Py_TRASHCAN_BEGIN/END) in frameobject.c instead of
+the old ones (Py_TRASHCAN_SAFE_BEGIN/END).
+
+..
+
+.. bpo: 33930
+.. date: 2021-08-09-14-29-52
+.. nonce: --5LQ-
+.. section: Core and Builtins
+
+Fix segmentation fault with deep recursion when cleaning method objects.
+Patch by Augusto Goulart and Pablo Galindo.
+
+..
+
+.. bpo: 25782
+.. date: 2021-08-07-21-39-19
+.. nonce: B22lMx
+.. section: Core and Builtins
+
+Fix bug where ``PyErr_SetObject`` hangs when the current exception has a
+cycle in its context chain.
+
+..
+
+.. bpo: 44856
+.. date: 2021-08-07-01-26-12
+.. nonce: 9rk3li
+.. section: Core and Builtins
+
+Fix reference leaks in the error paths of ``update_bases()`` and
+``__build_class__``. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44826
+.. date: 2021-08-05-17-49-55
+.. nonce: zQsyK5
+.. section: Core and Builtins
+
+Initial implementation of adaptive specialization of STORE_ATTR
+
+Three specialized forms of STORE_ATTR are added:
+
+* STORE_ATTR_SLOT
+
+* STORE_ATTR_SPLIT_KEYS
+
+* STORE_ATTR_WITH_HINT
+
+..
+
+.. bpo: 44838
+.. date: 2021-08-05-17-42-03
+.. nonce: r_Lkj_
+.. section: Core and Builtins
+
+Fixed a bug that was causing the parser to raise an incorrect custom
+:exc:`SyntaxError` for invalid 'if' expressions. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44821
+.. date: 2021-08-04-11-37-38
+.. nonce: 67YHGI
+.. section: Core and Builtins
+
+Create instance dictionaries (__dict__) eagerly, to improve regularity of
+object layout and assist specialization.
+
+..
+
+.. bpo: 44792
+.. date: 2021-07-31-12-12-57
+.. nonce: mOReTW
+.. section: Core and Builtins
+
+Improve syntax errors for if expressions. Patch by Miguel Brito
+
+..
+
+.. bpo: 34013
+.. date: 2021-07-27-11-14-22
+.. nonce: SjLFe-
+.. section: Core and Builtins
+
+Generalize the invalid legacy statement custom error message (like the one
+generated when "print" is called without parentheses) to include more
+generic expressions. Patch by Pablo Galindo
+
+..
+
+.. bpo: 44732
+.. date: 2021-07-26-15-27-03
+.. nonce: IxObt3
+.. section: Core and Builtins
+
+Rename ``types.Union`` to ``types.UnionType``.
+
+..
+
+.. bpo: 44725
+.. date: 2021-07-23-15-17-01
+.. nonce: qcuKaa
+.. section: Core and Builtins
+
+Expose specialization stats in python via
+:func:`_opcode.get_specialization_stats`.
+
+..
+
+.. bpo: 44717
+.. date: 2021-07-23-01-52-13
+.. nonce: -vVmAh
+.. section: Core and Builtins
+
+Improve AttributeError on circular imports of submodules.
+
+..
+
+.. bpo: 44698
+.. date: 2021-07-21-15-26-56
+.. nonce: DA4_0o
+.. section: Core and Builtins
+
+Fix undefined behaviour in complex object exponentiation.
+
+..
+
+.. bpo: 44653
+.. date: 2021-07-19-20-49-06
+.. nonce: WcqGyI
+.. section: Core and Builtins
+
+Support :mod:`typing` types in parameter substitution in the union type.
+
+..
+
+.. bpo: 44676
+.. date: 2021-07-19-19-53-46
+.. nonce: WgIMvh
+.. section: Core and Builtins
+
+Add ability to serialise ``types.Union`` objects. Patch provided by Yurii
+Karabas.
+
+..
+
+.. bpo: 44633
+.. date: 2021-07-17-21-04-04
+.. nonce: 5-zKeI
+.. section: Core and Builtins
+
+Parameter substitution of the union type with wrong types now raises
+``TypeError`` instead of returning ``NotImplemented``.
+
+..
+
+.. bpo: 44661
+.. date: 2021-07-17-14-20-59
+.. nonce: BQbXiH
+.. section: Core and Builtins
+
+Update ``property_descr_set`` to use vectorcall if possible. Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 44662
+.. date: 2021-07-17-13-41-58
+.. nonce: q22kWR
+.. section: Core and Builtins
+
+Add ``__module__`` to ``types.Union``. This also fixes ``types.Union``
+issues with ``typing.Annotated``. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 44655
+.. date: 2021-07-16-21-35-14
+.. nonce: 95I7M6
+.. section: Core and Builtins
+
+Include the name of the type in unset __slots__ attribute errors. Patch by
+Pablo Galindo
+
+..
+
+.. bpo: 44655
+.. date: 2021-07-16-20-25-37
+.. nonce: I3wRjL
+.. section: Core and Builtins
+
+Don't include a missing attribute with the same name as the failing one when
+offering suggestions for missing attributes. Patch by Pablo Galindo
+
+..
+
+.. bpo: 44646
+.. date: 2021-07-16-09-59-13
+.. nonce: Yb6s05
+.. section: Core and Builtins
+
+Fix the hash of the union type: it no longer depends on the order of
+arguments.
+
+..
+
+.. bpo: 44636
+.. date: 2021-07-16-09-36-12
+.. nonce: ZWebi8
+.. section: Core and Builtins
+
+Collapse union of equal types. E.g. the result of ``int | int`` is now
+``int``. Fix comparison of the union type with non-hashable objects. E.g.
+``int | str == {}`` no longer raises a TypeError.
+
+..
+
+.. bpo: 44611
+.. date: 2021-07-16-01-01-11
+.. nonce: LcfHN-
+.. section: Core and Builtins
+
+On Windows, :func:`os.urandom`: uses BCryptGenRandom API instead of
+CryptGenRandom API which is deprecated from Microsoft Windows API. Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 44635
+.. date: 2021-07-14-13-54-07
+.. nonce: 7ZMAdB
+.. section: Core and Builtins
+
+Convert ``None`` to ``type(None)`` in the union type constructor.
+
+..
+
+.. bpo: 26280
+.. date: 2021-07-14-10-31-10
+.. nonce: cgpM4B
+.. section: Core and Builtins
+
+Implement adaptive specialization for BINARY_SUBSCR
+
+Three specialized forms of BINARY_SUBSCR are added:
+
+* BINARY_SUBSCR_LIST_INT
+
+* BINARY_SUBSCR_TUPLE_INT
+
+* BINARY_SUBSCR_DICT
+
+..
+
+.. bpo: 44589
+.. date: 2021-07-13-23-19-41
+.. nonce: 59OH8T
+.. section: Core and Builtins
+
+Mapping patterns in ``match`` statements with two or more equal literal keys
+will now raise a :exc:`SyntaxError` at compile-time.
+
+..
+
+.. bpo: 44606
+.. date: 2021-07-13-20-22-12
+.. nonce: S3Bv2w
+.. section: Core and Builtins
+
+Fix ``__instancecheck__`` and ``__subclasscheck__`` for the union type.
+
+..
+
+.. bpo: 42073
+.. date: 2021-07-13-17-47-32
+.. nonce: 9wopiC
+.. section: Core and Builtins
+
+The ``@classmethod`` decorator can now wrap other classmethod-like
+descriptors.
+
+..
+
+.. bpo: 41972
+.. date: 2021-07-12-04-06-57
+.. nonce: nDX5k_
+.. section: Core and Builtins
+
+Tuned the string-searching algorithm of fastsearch.h to have a shorter inner
+loop for most cases.
+
+..
+
+.. bpo: 44590
+.. date: 2021-07-09-12-08-17
+.. nonce: a2ntVX
+.. section: Core and Builtins
+
+All necessary data for executing a Python function (local variables, stack,
+etc) is now kept in a per-thread stack. Frame objects are lazily allocated
+on demand. This increases performance by about 7% on the standard benchmark
+suite. Introspection and debugging are unaffected as frame objects are
+always available when needed. Patch by Mark Shannon.
+
+..
+
+.. bpo: 44584
+.. date: 2021-07-08-12-18-56
+.. nonce: qKnSqV
+.. section: Core and Builtins
+
+The threading debug (:envvar:`PYTHONTHREADDEBUG` environment variable) is
+deprecated in Python 3.10 and will be removed in Python 3.12. This feature
+requires a debug build of Python. Patch by Victor Stinner.
+
+..
+
+.. bpo: 43895
+.. date: 2021-07-07-16-05-35
+.. nonce: JFjR0-
+.. section: Core and Builtins
+
+An obsolete internal cache of shared object file handles added in 1995 that
+attempted, but did not guarantee, that a .so would not be dlopen'ed twice to
+work around flaws in mid-1990s posix-ish operating systems has been removed
+from dynload_shlib.c.
+
+..
+
+.. bpo: 44490
+.. date: 2021-07-06-22-22-15
+.. nonce: BJxPbZ
+.. section: Core and Builtins
+
+:mod:`typing` now searches for type parameters in ``types.Union`` objects.
+``get_type_hints`` will also properly resolve annotations with nested
+``types.Union`` objects. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 43950
+.. date: 2021-07-06-15-27-11
+.. nonce: LhL2-q
+.. section: Core and Builtins
+
+Code objects can now provide the column information for instructions when
+available. This is levaraged during traceback printing to show the
+expressions responsible for errors.
+
+Contributed by Pablo Galindo, Batuhan Taskaya and Ammar Askar as part of
+:pep:`657`.
+
+..
+
+.. bpo: 44562
+.. date: 2021-07-04-23-38-51
+.. nonce: QdeRQo
+.. section: Core and Builtins
+
+Remove uses of :c:func:`PyObject_GC_Del` in error path when initializing
+:class:`types.GenericAlias`.
+
+..
+
+.. bpo: 41486
+.. date: 2021-07-04-17-41-47
+.. nonce: DiM24a
+.. section: Core and Builtins
+
+Fix a memory consumption and copying performance regression in earlier 3.10
+beta releases if someone used an output buffer larger than 4GiB with
+zlib.decompress on input data that expands that large.
+
+..
+
+.. bpo: 43908
+.. date: 2021-07-03-00-20-39
+.. nonce: YHuV_s
+.. section: Core and Builtins
+
+Heap types with the :const:`Py_TPFLAGS_IMMUTABLETYPE` flag can now inherit
+the :pep:`590` vectorcall protocol. Previously, this was only possible for
+:ref:`static types <static-types>`. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 44553
+.. date: 2021-07-02-22-54-41
+.. nonce: l9YqGg
+.. section: Core and Builtins
+
+Implement GC methods for ``types.Union`` to break reference cycles and
+prevent memory leaks.
+
+..
+
+.. bpo: 44490
+.. date: 2021-07-01-11-59-34
+.. nonce: xY80VR
+.. section: Core and Builtins
+
+Add ``__parameters__`` attribute and ``__getitem__`` operator to
+``types.Union``. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 44523
+.. date: 2021-06-29-11-49-29
+.. nonce: 67-ZIP
+.. section: Core and Builtins
+
+Remove the pass-through for :func:`hash` of :class:`weakref.proxy` objects
+to prevent unintended consequences when the original referred object dies
+while the proxy is part of a hashable object. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44483
+.. date: 2021-06-22-19-08-19
+.. nonce: eq2f7T
+.. section: Core and Builtins
+
+Fix a crash in ``types.Union`` objects when creating a union of an object
+with bad ``__module__`` field.
+
+..
+
+.. bpo: 44486
+.. date: 2021-06-22-10-55-23
+.. nonce: wct-9X
+.. section: Core and Builtins
+
+Modules will always have a dictionary, even when created by
+``types.ModuleType.__new__()``
+
+..
+
+.. bpo: 44472
+.. date: 2021-06-21-11-19-54
+.. nonce: Vvm1yn
+.. section: Core and Builtins
+
+Fix ltrace functionality when exceptions are raised. Patch by Pablo Galindo
+
+..
+
+.. bpo: 12022
+.. date: 2021-06-20-10-53-21
+.. nonce: SW240M
+.. section: Core and Builtins
+
+A :exc:`TypeError` is now raised instead of an :exc:`AttributeError` in
+:keyword:`with` and :keyword:`async with` statements for objects which do
+not support the :term:`context manager` or :term:`asynchronous context
+manager` protocols correspondingly.
+
+..
+
+.. bpo: 44297
+.. date: 2021-06-19-12-41-13
+.. nonce: F53vHj
+.. section: Core and Builtins
+
+Make sure that the line number is set when entering a comprehension scope.
+Ensures that backtraces inclusing generator expressions show the correct
+line number.
+
+..
+
+.. bpo: 44456
+.. date: 2021-06-18-22-08-25
+.. nonce: L0Rhko
+.. section: Core and Builtins
+
+Improve the syntax error when mixing positional and keyword patterns. Patch
+by Pablo Galindo.
+
+..
+
+.. bpo: 44409
+.. date: 2021-06-13-23-12-18
+.. nonce: eW4LS-
+.. section: Core and Builtins
+
+Fix error location information for tokenizer errors raised on initialization
+of the tokenizer. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44396
+.. date: 2021-06-11-18-17-42
+.. nonce: Z9EKim
+.. section: Core and Builtins
+
+Fix a possible crash in the tokenizer when raising syntax errors for
+unclosed strings. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44376
+.. date: 2021-06-11-17-37-15
+.. nonce: zhM1UW
+.. section: Core and Builtins
+
+Exact integer exponentiation (like ``i**2`` or ``pow(i, 2)``) with a small
+exponent is much faster, due to reducing overhead in such cases.
+
+..
+
+.. bpo: 44313
+.. date: 2021-06-10-16-10-39
+.. nonce: 34RjI8
+.. section: Core and Builtins
+
+Directly imported objects and modules (through import and from import
+statements) don't generate ``LOAD_METHOD``/``CALL_METHOD`` for directly
+accessed objects on their namespace. They now use the regular
+``LOAD_ATTR``/``CALL_FUNCTION``.
+
+..
+
+.. bpo: 44338
+.. date: 2021-06-10-10-06-18
+.. nonce: c4Myr4
+.. section: Core and Builtins
+
+Implement adaptive specialization for LOAD_GLOBAL
+
+Two specialized forms of LOAD_GLOBAL are added:
+
+* LOAD_GLOBAL_MODULE
+
+* LOAD_GLOBAL_BUILTIN
+
+..
+
+.. bpo: 44368
+.. date: 2021-06-09-22-56-59
+.. nonce: vgT0Cx
+.. section: Core and Builtins
+
+Improve syntax errors for invalid "as" targets. Patch by Pablo Galindo
+
+..
+
+.. bpo: 44349
+.. date: 2021-06-08-22-49-06
+.. nonce: xgEgeA
+.. section: Core and Builtins
+
+Fix an edge case when displaying text from files with encoding in syntax
+errors. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44337
+.. date: 2021-06-08-10-22-46
+.. nonce: RTjmIt
+.. section: Core and Builtins
+
+Initial implementation of adaptive specialization of LOAD_ATTR
+
+Four specialized forms of LOAD_ATTR are added:
+
+* LOAD_ATTR_SLOT
+
+* LOAD_ATTR_SPLIT_KEYS
+
+* LOAD_ATTR_WITH_HINT
+
+* LOAD_ATTR_MODULE
+
+..
+
+.. bpo: 44335
+.. date: 2021-06-08-01-13-47
+.. nonce: GQTTkl
+.. section: Core and Builtins
+
+Fix a regression when identifying incorrect characters in syntax errors.
+Patch by Pablo Galindo
+
+..
+
+.. bpo: 43693
+.. date: 2021-06-07-15-13-44
+.. nonce: c_zDeY
+.. section: Core and Builtins
+
+Computation of the offsets of cell variables is done in the compiler instead
+of at runtime. This reduces the overhead of handling cell and free
+variables, especially in the case where a variable is both an argument and
+cell variable.
+
+..
+
+.. bpo: 44317
+.. date: 2021-06-06-00-29-14
+.. nonce: xPPhcZ
+.. section: Core and Builtins
+
+Improve tokenizer error with improved locations. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44304
+.. date: 2021-06-05-02-34-57
+.. nonce: _MAoPc
+.. section: Core and Builtins
+
+Fix a crash in the :mod:`sqlite3` module that happened when the garbage
+collector clears :class:`sqlite.Statement` objects. Patch by Pablo Galindo
+
+..
+
+.. bpo: 44305
+.. date: 2021-06-03-22-51-50
+.. nonce: 66dVDG
+.. section: Core and Builtins
+
+Improve error message for ``try`` blocks without ``except`` or ``finally``
+blocks. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 43413
+.. date: 2021-05-30-16-37-47
+.. nonce: vYFPPC
+.. section: Core and Builtins
+
+Constructors of subclasses of some builtin classes (e.g. :class:`tuple`,
+:class:`list`, :class:`frozenset`) no longer accept arbitrary keyword
+arguments. [reverted in 3.11a4] Subclass of :class:`set` can now define a ``__new__()`` method
+with additional keyword parameters without overriding also ``__init__()``.
+
+..
+
+.. bpo: 43667
+.. date: 2021-05-27-17-34-29
+.. nonce: ND9jP3
+.. section: Core and Builtins
+
+Improve Unicode support in non-UTF locales on Oracle Solaris. This issue
+does not affect other Solaris systems.
+
+..
+
+.. bpo: 43693
+.. date: 2021-05-26-19-10-47
+.. nonce: 1KSG9u
+.. section: Core and Builtins
+
+A new opcode MAKE_CELL has been added that effectively moves some of the
+work done on function entry into the compiler and into the eval loop. In
+addition to creating the required cell objects, the new opcode converts
+relevant arguments (and other locals) to cell variables on function entry.
+
+..
+
+.. bpo: 44232
+.. date: 2021-05-25-18-20-10
+.. nonce: DMcCCf
+.. section: Core and Builtins
+
+Fix a regression in :func:`type` when a metaclass raises an exception. The C
+function :c:func:`type_new` must properly report the exception when a
+metaclass constructor raises an exception and the winner class is not the
+metaclass. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44201
+.. date: 2021-05-21-21-16-03
+.. nonce: bGaSjt
+.. section: Core and Builtins
+
+Avoid side effects of checking for specialized syntax errors in the REPL
+that was causing it to ask for extra tokens after a syntax error had been
+detected. Patch by Pablo Galindo
+
+..
+
+.. bpo: 43693
+.. date: 2021-05-21-20-53-49
+.. nonce: -NN3J_
+.. section: Core and Builtins
+
+``PyCodeObject`` gained ``co_fastlocalnames`` and ``co_fastlocalkinds`` as
+the authoritative source of fast locals info. Marshaled code objects
+have changed accordingly.
+
+..
+
+.. bpo: 44184
+.. date: 2021-05-21-01-42-45
+.. nonce: 9qOptC
+.. section: Core and Builtins
+
+Fix a crash at Python exit when a deallocator function removes the last
+strong reference to a heap type. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44187
+.. date: 2021-05-20-12-43-04
+.. nonce: 3lk0L1
+.. section: Core and Builtins
+
+Implement quickening in the interpreter. This offers no advantages as yet,
+but is an enabler of future optimizations. See PEP 659 for full explanation.
+
+..
+
+.. bpo: 44180
+.. date: 2021-05-19-20-33-36
+.. nonce: mQVaAs
+.. section: Core and Builtins
+
+The parser doesn't report generic syntax errors that happen in a position
+further away that the one it reached in the first pass. Patch by Pablo
+Galindo
+
+..
+
+.. bpo: 44168
+.. date: 2021-05-18-11-27-02
+.. nonce: mgB-rt
+.. section: Core and Builtins
+
+Fix error message in the parser involving keyword arguments with invalid
+expressions. Patch by Pablo Galindo
+
+..
+
+.. bpo: 44156
+.. date: 2021-05-17-20-44-45
+.. nonce: 8KSp9l
+.. section: Core and Builtins
+
+String caches in ``compile.c`` are now subinterpreter compatible.
+
+..
+
+.. bpo: 44143
+.. date: 2021-05-15-17-30-57
+.. nonce: 7UTS6H
+.. section: Core and Builtins
+
+Fixed a crash in the parser that manifest when raising tokenizer errors when
+an existing exception was present. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44032
+.. date: 2021-05-14-20-03-32
+.. nonce: OzT1ob
+.. section: Core and Builtins
+
+Move 'fast' locals and other variables from the frame object to a per-thread
+datastack.
+
+..
+
+.. bpo: 44114
+.. date: 2021-05-12-14-26-16
+.. nonce: p-WfAE
+.. section: Core and Builtins
+
+Fix incorrect dictkeys_reversed and dictitems_reversed function signatures
+in C code, which broke webassembly builds.
+
+..
+
+.. bpo: 44110
+.. date: 2021-05-11-21-52-44
+.. nonce: VqbAsB
+.. section: Core and Builtins
+
+Improve :func:`str.__getitem__` error message
+
+..
+
+.. bpo: 26110
+.. date: 2021-05-10-18-49-13
+.. nonce: EQzqqA
+.. section: Core and Builtins
+
+Add ``CALL_METHOD_KW`` opcode to speed up method calls with keyword
+arguments. Idea originated from PyPy. A side effect is executing
+``CALL_METHOD`` is now branchless in the evaluation loop.
+
+..
+
+.. bpo: 28307
+.. date: 2021-05-08-19-54-57
+.. nonce: 7ysaVW
+.. section: Core and Builtins
+
+Compiler now optimizes simple C-style formatting with literal format
+containing only format codes %s, %r and %a by converting them to f-string
+expressions.
+
+..
+
+.. bpo: 43149
+.. date: 2021-05-08-17-18-37
+.. nonce: Kp5FxD
+.. section: Core and Builtins
+
+Correct the syntax error message regarding multiple exception types to not
+refer to "exception groups". Patch by Pablo Galindo
+
+..
+
+.. bpo: 43822
+.. date: 2021-05-04-01-01-04
+.. nonce: 9VeCg0
+.. section: Core and Builtins
+
+The parser will prioritize tokenizer errors over custom syntax errors when
+raising exceptions. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 40222
+.. date: 2021-04-30-15-48-36
+.. nonce: j3VxeX
+.. section: Core and Builtins
+
+"Zero cost" exception handling.
+
+* Uses a lookup table to determine how to handle exceptions.
+* Removes SETUP_FINALLY and POP_TOP block instructions, eliminating the runtime overhead of try statements.
+* Reduces the size of the frame object by about 60%.
+
+Patch by Mark Shannon
+
+..
+
+.. bpo: 43918
+.. date: 2021-04-23-03-46-45
+.. nonce: nNDY3S
+.. section: Core and Builtins
+
+Document the signature and ``default`` argument in the docstring of the new
+``anext`` builtin.
+
+..
+
+.. bpo: 43833
+.. date: 2021-04-18-18-07-33
+.. nonce: oChkCi
+.. section: Core and Builtins
+
+Emit a deprecation warning if the numeric literal is immediately followed by
+one of keywords: and, else, for, if, in, is, or. Raise a syntax error with
+more informative message if it is immediately followed by other keyword or
+identifier.
+
+..
+
+.. bpo: 43879
+.. date: 2021-04-17-16-08-00
+.. nonce: zkyJgh
+.. section: Core and Builtins
+
+Add native_thread_id to PyThreadState. Patch by Gabriele N. Tornetta.
+
+..
+
+.. bpo: 43693
+.. date: 2021-04-02-15-02-16
+.. nonce: l3Ureu
+.. section: Core and Builtins
+
+Compute cell offsets relative to locals in compiler. Allows the interpreter
+to treats locals and cells a single array, which is slightly more efficient.
+Also make the LOAD_CLOSURE opcode an alias for LOAD_FAST. Preserving
+LOAD_CLOSURE helps keep bytecode a bit more readable.
+
+..
+
+.. bpo: 17792
+.. date: 2021-03-22-17-50-30
+.. nonce: _zssjS
+.. section: Core and Builtins
+
+More accurate error messages for access of unbound locals or free vars.
+
+..
+
+.. bpo: 28146
+.. date: 2021-01-13-19-34-41
+.. nonce: AZBBkH
+.. section: Core and Builtins
+
+Fix a confusing error message in :func:`str.format`.
+
+..
+
+.. bpo: 11105
+.. date: 2020-06-02-13-21-14
+.. nonce: wceryW
+.. section: Core and Builtins
+
+When compiling :class:`ast.AST` objects with recursive references through
+:func:`compile`, the interpreter doesn't crash anymore instead it raises a
+:exc:`RecursionError`.
+
+..
+
+.. bpo: 39091
+.. date: 2019-12-21-14-18-32
+.. nonce: dOexgQ
+.. section: Core and Builtins
+
+Fix crash when using passing a non-exception to a generator's ``throw()``
+method. Patch by Noah Oxer
+
+..
+
+.. bpo: 33346
+.. date: 2018-05-11-12-44-03
+.. nonce: ZgBkvB
+.. section: Core and Builtins
+
+Asynchronous comprehensions are now allowed inside comprehensions in
+asynchronous functions. Outer comprehensions implicitly become
+asynchronous.
+
+..
+
+.. bpo: 45371
+.. date: 2021-10-05-11-03-48
+.. nonce: NOwcDJ
+.. section: Library
+
+Fix clang rpath issue in :mod:`distutils`. The UnixCCompiler now uses
+correct clang option to add a runtime library directory (rpath) to a shared
+library.
+
+..
+
+.. bpo: 45329
+.. date: 2021-10-01-13-09-53
+.. nonce: 9iMYaO
+.. section: Library
+
+Fix freed memory access in :class:`pyexpat.xmlparser` when building it with
+an installed expat library <= 2.2.0.
+
+..
+
+.. bpo: 41710
+.. date: 2021-09-30-23-00-18
+.. nonce: svuloZ
+.. section: Library
+
+On Unix, if the ``sem_clockwait()`` function is available in the C library
+(glibc 2.30 and newer), the :meth:`threading.Lock.acquire` method now uses
+the monotonic clock (:data:`time.CLOCK_MONOTONIC`) for the timeout, rather
+than using the system clock (:data:`time.CLOCK_REALTIME`), to not be
+affected by system clock changes. Patch by Victor Stinner.
+
+..
+
+.. bpo: 1596321
+.. date: 2021-09-24-17-20-23
+.. nonce: 3nhPUk
+.. section: Library
+
+Fix the :func:`threading._shutdown` function when the :mod:`threading`
+module was imported first from a thread different than the main thread: no
+longer log an error at Python exit.
+
+..
+
+.. bpo: 45274
+.. date: 2021-09-23-22-17-26
+.. nonce: gPpa4E
+.. section: Library
+
+Fix a race condition in the :meth:`Thread.join() <threading.Thread.join>`
+method of the :mod:`threading` module. If the function is interrupted by a
+signal and the signal handler raises an exception, make sure that the thread
+remains in a consistent state to prevent a deadlock. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 21302
+.. date: 2021-09-22-23-56-15
+.. nonce: vvQ3Su
+.. section: Library
+
+In Unix operating systems, :func:`time.sleep` now uses the ``nanosleep()``
+function, if ``clock_nanosleep()`` is not available but ``nanosleep()`` is
+available. ``nanosleep()`` allows to sleep with nanosecond precision.
+
+..
+
+.. bpo: 21302
+.. date: 2021-09-20-22-46-40
+.. nonce: h56430
+.. section: Library
+
+On Windows, :func:`time.sleep` now uses a waitable timer which has a
+resolution of 100 nanoseconds (10\ :sup:`-7` seconds). Previously, it had a
+resolution of 1 millisecond (10\ :sup:`-3` seconds). Patch by Benjamin Szőke and
+Victor Stinner.
+
+..
+
+.. bpo: 45238
+.. date: 2021-09-18-16-56-33
+.. nonce: Hng_9V
+.. section: Library
+
+Fix :meth:`unittest.IsolatedAsyncioTestCase.debug`: it runs now asynchronous
+methods and callbacks.
+
+..
+
+.. bpo: 36674
+.. date: 2021-09-18-13-14-57
+.. nonce: a2k5Zb
+.. section: Library
+
+:meth:`unittest.TestCase.debug` raises now a :class:`unittest.SkipTest` if
+the class or the test method are decorated with the skipping decorator.
+
+..
+
+.. bpo: 45235
+.. date: 2021-09-17-16-55-37
+.. nonce: sXnmPA
+.. section: Library
+
+Fix an issue where argparse would not preserve values in a provided
+namespace when using a subparser with defaults.
+
+..
+
+.. bpo: 45183
+.. date: 2021-09-17-15-58-53
+.. nonce: Vv_vch
+.. section: Library
+
+Have zipimport.zipimporter.find_spec() not raise an exception when the
+underlying zip file has been deleted and the internal cache has been reset
+via invalidate_cache().
+
+..
+
+.. bpo: 45234
+.. date: 2021-09-17-11-20-55
+.. nonce: qUcTVt
+.. section: Library
+
+Fixed a regression in :func:`~shutil.copyfile`, :func:`~shutil.copy`,
+:func:`~shutil.copy2` raising :exc:`FileNotFoundError` when source is a
+directory, which should raise :exc:`IsADirectoryError`
+
+..
+
+.. bpo: 45228
+.. date: 2021-09-17-09-59-33
+.. nonce: WV1dcT
+.. section: Library
+
+Fix stack buffer overflow in parsing J1939 network address.
+
+..
+
+.. bpo: 45225
+.. date: 2021-09-16-19-02-14
+.. nonce: xmKV4i
+.. section: Library
+
+use map function instead of genexpr in capwords.
+
+..
+
+.. bpo: 42135
+.. date: 2021-09-13-19-32-58
+.. nonce: 1ZAHqR
+.. section: Library
+
+Fix typo: ``importlib.find_loader`` is really slated for removal in Python
+3.12 not 3.10, like the others in PR 25169.
+
+Patch by Hugo van Kemenade.
+
+..
+
+.. bpo: 20524
+.. date: 2021-09-13-14-59-01
+.. nonce: PMQ1Fh
+.. section: Library
+
+Improves error messages on ``.format()`` operation for ``str``, ``float``,
+``int``, and ``complex``. New format now shows the problematic pattern and
+the object type.
+
+..
+
+.. bpo: 45168
+.. date: 2021-09-13-14-28-49
+.. nonce: Z1mfW4
+.. section: Library
+
+Change :func:`dis.dis` output to omit op arg values that cannot be resolved
+due to ``co_consts``, ``co_names`` etc not being provided. Previously the
+oparg itself was repeated in the value field, which is not useful and can be
+confusing.
+
+..
+
+.. bpo: 21302
+.. date: 2021-09-11-18-44-40
+.. nonce: QxHRpR
+.. section: Library
+
+In Unix operating systems, :func:`time.sleep` now uses the
+``clock_nanosleep()`` function, if available, which allows to sleep for an
+interval specified with nanosecond precision.
+
+..
+
+.. bpo: 45173
+.. date: 2021-09-11-17-46-20
+.. nonce: UptGAn
+.. section: Library
+
+Remove from the :mod:`configparser` module: the :class:`SafeConfigParser`
+class, the :attr:`filename` property of the :class:`ParsingError` class, the
+:meth:`readfp` method of the :class:`ConfigParser` class, deprecated since
+Python 3.2.
+
+Patch by Hugo van Kemenade.
+
+..
+
+.. bpo: 44987
+.. date: 2021-09-11-14-41-02
+.. nonce: Mt8DiX
+.. section: Library
+
+Pure ASCII strings are now normalized in constant time by
+:func:`unicodedata.normalize`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 35474
+.. date: 2021-09-11-10-45-12
+.. nonce: tEY3SD
+.. section: Library
+
+Calling :func:`mimetypes.guess_all_extensions` with ``strict=False`` no
+longer affects the result of the following call with ``strict=True``. Also,
+mutating the returned list no longer affects the global state.
+
+..
+
+.. bpo: 45166
+.. date: 2021-09-10-21-35-53
+.. nonce: UHipXF
+.. section: Library
+
+:func:`typing.get_type_hints` now works with :data:`~typing.Final` wrapped
+in :class:`~typing.ForwardRef`.
+
+..
+
+.. bpo: 45162
+.. date: 2021-09-10-13-20-53
+.. nonce: 2Jh-lq
+.. section: Library
+
+Remove many old deprecated :mod:`unittest` features:
+
+* "``fail*``" and "``assert*``" aliases of :class:`~unittest.TestCase` methods.
+* Broken from start :class:`~unittest.TestCase` method ``assertDictContainsSubset()``.
+* Ignored :meth:`<unittest.TestLoader.loadTestsFromModule> TestLoader.loadTestsFromModule` parameter *use_load_tests*.
+* Old alias ``_TextTestResult`` of :class:`~unittest.TextTestResult`.
+
+..
+
+.. bpo: 38371
+.. date: 2021-09-08-13-19-29
+.. nonce: y1kEfP
+.. section: Library
+
+Remove the deprecated ``split()`` method of :class:`_tkinter.TkappType`.
+Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 20499
+.. date: 2021-09-08-01-19-31
+.. nonce: tSxx8Y
+.. section: Library
+
+Improve the speed and accuracy of statistics.pvariance().
+
+..
+
+.. bpo: 45132
+.. date: 2021-09-07-16-33-51
+.. nonce: WI9zQY
+.. section: Library
+
+Remove :meth:`__getitem__` methods of
+:class:`xml.dom.pulldom.DOMEventStream`, :class:`wsgiref.util.FileWrapper`
+and :class:`fileinput.FileInput`, deprecated since Python 3.9.
+
+Patch by Hugo van Kemenade.
+
+..
+
+.. bpo: 45129
+.. date: 2021-09-07-14-27-39
+.. nonce: vXH0gw
+.. section: Library
+
+Due to significant security concerns, the *reuse_address* parameter of
+:meth:`asyncio.loop.create_datagram_endpoint`, disabled in Python 3.9, is
+now entirely removed. This is because of the behavior of the socket option
+``SO_REUSEADDR`` in UDP.
+
+Patch by Hugo van Kemenade.
+
+..
+
+.. bpo: 45124
+.. date: 2021-09-07-09-13-27
+.. nonce: Kw5AUs
+.. section: Library
+
+The ``bdist_msi`` command, deprecated in Python 3.9, is now removed.
+
+Use ``bdist_wheel`` (wheel packages) instead.
+
+Patch by Hugo van Kemenade.
+
+..
+
+.. bpo: 30856
+.. date: 2021-09-05-21-37-28
+.. nonce: jj86y0
+.. section: Library
+
+:class:`unittest.TestResult` methods
+:meth:`~unittest.TestResult.addFailure`,
+:meth:`~unittest.TestResult.addError`, :meth:`~unittest.TestResult.addSkip`
+and :meth:`~unittest.TestResult.addSubTest` are now called immediately after
+raising an exception in test or finishing a subtest. Previously they were
+called only after finishing the test clean up.
+
+..
+
+.. bpo: 45034
+.. date: 2021-09-05-20-33-25
+.. nonce: 62NLD5
+.. section: Library
+
+Changes how error is formatted for ``struct.pack`` with ``'H'`` and ``'h'``
+modes and too large / small numbers. Now it shows the actual numeric limits,
+while previously it was showing arithmetic expressions.
+
+..
+
+.. bpo: 25894
+.. date: 2021-09-05-13-15-08
+.. nonce: zjbi2f
+.. section: Library
+
+:mod:`unittest` now always reports skipped and failed subtests separately:
+separate characters in default mode and separate lines in verbose mode. Also
+the test description is now output for errors in test method, class and
+module cleanups.
+
+..
+
+.. bpo: 45081
+.. date: 2021-09-02-12-42-25
+.. nonce: tOjJ1k
+.. section: Library
+
+Fix issue when dataclasses that inherit from ``typing.Protocol`` subclasses
+have wrong ``__init__``. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 45085
+.. date: 2021-09-02-00-47-14
+.. nonce: mMnaDv
+.. section: Library
+
+The ``binhex`` module, deprecated in Python 3.9, is now removed. The
+following :mod:`binascii` functions, deprecated in Python 3.9, are now also
+removed:
+
+* ``a2b_hqx()``, ``b2a_hqx()``;
+* ``rlecode_hqx()``, ``rledecode_hqx()``.
+
+The :func:`binascii.crc_hqx` function remains available.
+
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 40360
+.. date: 2021-09-02-00-18-32
+.. nonce: 9nmMtB
+.. section: Library
+
+The :mod:`lib2to3` package is now deprecated and may not be able to parse
+Python 3.10 or newer. See the :pep:`617` (New PEG parser for CPython). Patch
+by Victor Stinner.
+
+..
+
+.. bpo: 45075
+.. date: 2021-09-01-15-27-00
+.. nonce: 9xUpvt
+.. section: Library
+
+Rename :meth:`traceback.StackSummary.format_frame` to
+:meth:`traceback.StackSummary.format_frame_summary`. This method was added
+for 3.11 so it was not released yet.
+
+Updated code and docs to better distinguish frame and FrameSummary.
+
+..
+
+.. bpo: 31299
+.. date: 2021-08-30-13-55-09
+.. nonce: 9QzjZs
+.. section: Library
+
+Add option to completely drop frames from a traceback by returning ``None``
+from a :meth:`~traceback.StackSummary.format_frame` override.
+
+..
+
+.. bpo: 41620
+.. date: 2021-08-29-14-49-22
+.. nonce: WJ6PFL
+.. section: Library
+
+:meth:`~unittest.TestCase.run` now always return a
+:class:`~unittest.TestResult` instance. Previously it returned ``None`` if
+the test class or method was decorated with a skipping decorator.
+
+..
+
+.. bpo: 45021
+.. date: 2021-08-28-13-00-12
+.. nonce: rReeaj
+.. section: Library
+
+Fix a potential deadlock at shutdown of forked children when using
+:mod:`concurrent.futures` module
+
+..
+
+.. bpo: 43913
+.. date: 2021-08-27-23-40-51
+.. nonce: Uo1Gt5
+.. section: Library
+
+Fix bugs in cleaning up classes and modules in :mod:`unittest`:
+
+* Functions registered with :func:`~unittest.addModuleCleanup` were not called unless the user defines ``tearDownModule()`` in their test module.
+* Functions registered with :meth:`~unittest.TestCase.addClassCleanup` were not called if ``tearDownClass`` is set to ``None``.
+* Buffering in :class:`~unittest.TestResult` did not work with functions registered with ``addClassCleanup()`` and ``addModuleCleanup()``.
+* Errors in functions registered with ``addClassCleanup()`` and ``addModuleCleanup()`` were not handled correctly in buffered and debug modes.
+* Errors in ``setUpModule()`` and functions registered with ``addModuleCleanup()`` were reported in wrong order.
+* And several lesser bugs.
+
+..
+
+.. bpo: 45030
+.. date: 2021-08-27-19-01-23
+.. nonce: tAmBbY
+.. section: Library
+
+Fix integer overflow in pickling and copying the range iterator.
+
+..
+
+.. bpo: 45001
+.. date: 2021-08-26-16-25-48
+.. nonce: tn_dKp
+.. section: Library
+
+Made email date parsing more robust against malformed input, namely a
+whitespace-only ``Date:`` header. Patch by Wouter Bolsterlee.
+
+..
+
+.. bpo: 45010
+.. date: 2021-08-26-09-54-14
+.. nonce: Cn23bQ
+.. section: Library
+
+Remove support of special method ``__div__`` in :mod:`unittest.mock`. It is
+not used in Python 3.
+
+..
+
+.. bpo: 39218
+.. date: 2021-08-25-20-18-31
+.. nonce: BlO6jW
+.. section: Library
+
+Improve accuracy of variance calculations by using ``x*x`` instead of
+``x**2``.
+
+..
+
+.. bpo: 43613
+.. date: 2021-08-25-10-28-49
+.. nonce: WkYmI0
+.. section: Library
+
+Improve the speed of :func:`gzip.compress` and :func:`gzip.decompress` by
+compressing and decompressing at once in memory instead of in a streamed
+fashion.
+
+..
+
+.. bpo: 37596
+.. date: 2021-08-23-21-39-59
+.. nonce: ojRcwB
+.. section: Library
+
+Ensure that :class:`set` and :class:`frozenset` objects are always
+:mod:`marshalled <marshal>` reproducibly.
+
+..
+
+.. bpo: 44019
+.. date: 2021-08-22-13-25-17
+.. nonce: BN8HDy
+.. section: Library
+
+A new function ``operator.call`` has been added, such that
+``operator.call(obj, *args, **kwargs) == obj(*args, **kwargs)``.
+
+..
+
+.. bpo: 42255
+.. date: 2021-08-19-23-49-10
+.. nonce: ofe3ms
+.. section: Library
+
+:class:`webbrowser.MacOSX` is deprecated and will be removed in Python 3.13.
+It is untested and undocumented and also not used by webbrowser itself.
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 44955
+.. date: 2021-08-19-15-03-54
+.. nonce: 1mxFQS
+.. section: Library
+
+Method :meth:`~unittest.TestResult.stopTestRun` is now always called in pair
+with method :meth:`~unittest.TestResult.startTestRun` for
+:class:`~unittest.TestResult` objects implicitly created in
+:meth:`~unittest.TestCase.run`. Previously it was not called for test
+methods and classes decorated with a skipping decorator.
+
+..
+
+.. bpo: 39039
+.. date: 2021-08-18-10-36-14
+.. nonce: A63LYh
+.. section: Library
+
+tarfile.open raises :exc:`~tarfile.ReadError` when a zlib error occurs
+during file extraction.
+
+..
+
+.. bpo: 44935
+.. date: 2021-08-17-16-01-44
+.. nonce: roUl0G
+.. section: Library
+
+:mod:`subprocess` on Solaris now also uses :func:`os.posix_spawn()` for
+better performance.
+
+..
+
+.. bpo: 44911
+.. date: 2021-08-14-00-55-16
+.. nonce: uk3hYk
+.. section: Library
+
+:class:`~unittest.IsolatedAsyncioTestCase` will no longer throw an exception
+while cancelling leaked tasks. Patch by Bar Harel.
+
+..
+
+.. bpo: 41322
+.. date: 2021-08-12-16-22-16
+.. nonce: utscTd
+.. section: Library
+
+Added ``DeprecationWarning`` for tests and async tests that return a
+value!=None (as this may indicate an improperly written test, for example a
+test written as a generator function).
+
+..
+
+.. bpo: 44524
+.. date: 2021-08-10-16-57-10
+.. nonce: dk9QX4
+.. section: Library
+
+Make exception message more useful when subclass from typing special form
+alias. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 38956
+.. date: 2021-08-09-13-17-10
+.. nonce: owWLNv
+.. section: Library
+
+:class:`argparse.BooleanOptionalAction`'s default value is no longer printed
+twice when used with :class:`argparse.ArgumentDefaultsHelpFormatter`.
+
+..
+
+.. bpo: 44860
+.. date: 2021-08-07-22-51-32
+.. nonce: PTvRrU
+.. section: Library
+
+Fix the ``posix_user`` scheme in :mod:`sysconfig` to not depend on
+:data:`sys.platlibdir`.
+
+..
+
+.. bpo: 44859
+.. date: 2021-08-07-17-28-56
+.. nonce: CCopjk
+.. section: Library
+
+Improve error handling in :mod:`sqlite3` and raise more accurate exceptions.
+
+* :exc:`MemoryError` is now raised instead of :exc:`sqlite3.Warning` when memory is not enough for encoding a statement to UTF-8 in ``Connection.__call__()`` and ``Cursor.execute()``.
+* :exc:`UnicodEncodeError` is now raised instead of :exc:`sqlite3.Warning` when the statement contains surrogate characters in ``Connection.__call__()`` and ``Cursor.execute()``.
+* :exc:`TypeError` is now raised instead of :exc:`ValueError` for non-string script argument in ``Cursor.executescript()``.
+* :exc:`ValueError` is now raised for script containing the null character instead of truncating it in ``Cursor.executescript()``.
+* Correctly handle exceptions raised when getting boolean value of the result of the progress handler.
+* Add many tests covering different corner cases.
+
+..
+
+.. bpo: 44581
+.. date: 2021-08-06-19-15-52
+.. nonce: oFDBTB
+.. section: Library
+
+Upgrade bundled pip to 21.2.3 and setuptools to 57.4.0
+
+..
+
+.. bpo: 44849
+.. date: 2021-08-06-13-00-28
+.. nonce: O78F_f
+.. section: Library
+
+Fix the :func:`os.set_inheritable` function on FreeBSD 14 for file
+descriptor opened with the :data:`~os.O_PATH` flag: ignore the
+:data:`~errno.EBADF` error on ``ioctl()``, fallback on the ``fcntl()``
+implementation. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44605
+.. date: 2021-08-06-09-43-50
+.. nonce: q4YSBZ
+.. section: Library
+
+The @functools.total_ordering() decorator now works with metaclasses.
+
+..
+
+.. bpo: 44524
+.. date: 2021-08-05-18-20-17
+.. nonce: 9T1tfe
+.. section: Library
+
+Fixed an issue wherein the ``__name__`` and ``__qualname__`` attributes of
+subscribed specialforms could be ``None``.
+
+..
+
+.. bpo: 44839
+.. date: 2021-08-05-14-59-39
+.. nonce: MURNL9
+.. section: Library
+
+:class:`MemoryError` raised in user-defined functions will now produce a
+``MemoryError`` in :mod:`sqlite3`. :class:`OverflowError` will now be
+converted to :class:`~sqlite3.DataError`. Previously
+:class:`~sqlite3.OperationalError` was produced in these cases.
+
+..
+
+.. bpo: 44822
+.. date: 2021-08-04-12-29-00
+.. nonce: zePNXA
+.. section: Library
+
+:mod:`sqlite3` user-defined functions and aggregators returning
+:class:`strings <str>` with embedded NUL characters are no longer truncated.
+Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 44801
+.. date: 2021-08-03-20-37-45
+.. nonce: i49Aug
+.. section: Library
+
+Ensure that the :class:`~typing.ParamSpec` variable in Callable can only be
+substituted with a parameters expression (a list of types, an ellipsis,
+ParamSpec or Concatenate).
+
+..
+
+.. bpo: 44806
+.. date: 2021-08-02-14-37-32
+.. nonce: wOW_Qn
+.. section: Library
+
+Non-protocol subclasses of :class:`typing.Protocol` ignore now the
+``__init__`` method inherited from protocol base classes.
+
+..
+
+.. bpo: 27275
+.. date: 2021-08-01-19-49-09
+.. nonce: QsvE0k
+.. section: Library
+
+:meth:`collections.OrderedDict.popitem` and
+:meth:`collections.OrderedDict.pop` no longer call ``__getitem__`` and
+``__delitem__`` methods of the OrderedDict subclasses.
+
+..
+
+.. bpo: 44793
+.. date: 2021-07-31-20-28-20
+.. nonce: woaQSg
+.. section: Library
+
+Fix checking the number of arguments when subscribe a generic type with
+``ParamSpec`` parameter.
+
+..
+
+.. bpo: 44784
+.. date: 2021-07-31-08-45-31
+.. nonce: fIMIDS
+.. section: Library
+
+In importlib.metadata tests, override warnings behavior under expected
+DeprecationWarnings (importlib_metadata 4.6.3).
+
+..
+
+.. bpo: 44667
+.. date: 2021-07-30-23-27-30
+.. nonce: tu0Xrv
+.. section: Library
+
+The :func:`tokenize.tokenize` doesn't incorrectly generate a ``NEWLINE``
+token if the source doesn't end with a new line character but the last line
+is a comment, as the function is already generating a ``NL`` token. Patch by
+Pablo Galindo
+
+..
+
+.. bpo: 44771
+.. date: 2021-07-28-22-53-18
+.. nonce: BvLdnU
+.. section: Library
+
+Added ``importlib.simple`` module implementing adapters from a low-level
+resources reader interface to a ``TraversableResources`` interface. Legacy
+API (``path``, ``contents``, ...) is now supported entirely by the
+``.files()`` API with a compatibility shim supplied for resource loaders
+without that functionality. Feature parity with ``importlib_resources`` 5.2.
+
+..
+
+.. bpo: 44752
+.. date: 2021-07-27-22-11-29
+.. nonce: _bvbrZ
+.. section: Library
+
+:mod:`rcompleter` does not call :func:`getattr` on :class:`property` objects
+to avoid the side-effect of evaluating the corresponding method.
+
+..
+
+.. bpo: 44747
+.. date: 2021-07-27-12-06-19
+.. nonce: epUzZz
+.. section: Library
+
+Refactor usage of ``sys._getframe`` in ``typing`` module. Patch provided by
+Yurii Karabas.
+
+..
+
+.. bpo: 42378
+.. date: 2021-07-25-08-17-55
+.. nonce: WIhUZK
+.. section: Library
+
+Fixes the issue with log file being overwritten when
+:class:`logging.FileHandler` is used in :mod:`atexit` with *filemode* set to
+``'w'``. Note this will cause the message in *atexit* not being logged if
+the log stream is already closed due to shutdown of logging.
+
+..
+
+.. bpo: 44720
+.. date: 2021-07-24-02-17-59
+.. nonce: shU5Qm
+.. section: Library
+
+``weakref.proxy`` objects referencing non-iterators now raise ``TypeError``
+rather than dereferencing the null ``tp_iternext`` slot and crashing.
+
+..
+
+.. bpo: 44704
+.. date: 2021-07-21-23-16-30
+.. nonce: iqHLxQ
+.. section: Library
+
+The implementation of ``collections.abc.Set._hash()`` now matches that of
+``frozenset.__hash__()``.
+
+..
+
+.. bpo: 44666
+.. date: 2021-07-21-10-43-22
+.. nonce: CEThkv
+.. section: Library
+
+Fixed issue in :func:`compileall.compile_file` when ``sys.stdout`` is
+redirected. Patch by Stefan Hölzl.
+
+..
+
+.. bpo: 44688
+.. date: 2021-07-20-23-28-26
+.. nonce: buFgz3
+.. section: Library
+
+:meth:`sqlite3.Connection.create_collation` now accepts non-ASCII collation
+names. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 44690
+.. date: 2021-07-20-22-03-24
+.. nonce: tV7Zjg
+.. section: Library
+
+Adopt *binacii.a2b_base64*'s strict mode in *base64.b64decode*.
+
+..
+
+.. bpo: 42854
+.. date: 2021-07-20-21-51-35
+.. nonce: ThuDMI
+.. section: Library
+
+Fixed a bug in the :mod:`_ssl` module that was throwing :exc:`OverflowError`
+when using :meth:`_ssl._SSLSocket.write` and :meth:`_ssl._SSLSocket.read`
+for a big value of the ``len`` parameter. Patch by Pablo Galindo
+
+..
+
+.. bpo: 44686
+.. date: 2021-07-20-19-35-49
+.. nonce: ucCGhu
+.. section: Library
+
+Replace ``unittest.mock._importer`` with ``pkgutil.resolve_name``.
+
+..
+
+.. bpo: 44353
+.. date: 2021-07-20-18-34-16
+.. nonce: ATuYq4
+.. section: Library
+
+Make ``NewType.__call__`` faster by implementing it in C. Patch provided by
+Yurii Karabas.
+
+..
+
+.. bpo: 44682
+.. date: 2021-07-20-00-11-47
+.. nonce: 3m2qVV
+.. section: Library
+
+Change the :mod:`pdb` *commands* directive to disallow setting commands for
+an invalid breakpoint and to display an appropriate error.
+
+..
+
+.. bpo: 44353
+.. date: 2021-07-19-22-43-15
+.. nonce: HF81_Q
+.. section: Library
+
+Refactor ``typing.NewType`` from function into callable class. Patch
+provided by Yurii Karabas.
+
+..
+
+.. bpo: 44678
+.. date: 2021-07-19-18-45-00
+.. nonce: YMEAu0
+.. section: Library
+
+Added a separate error message for discontinuous padding in
+*binascii.a2b_base64* strict mode.
+
+..
+
+.. bpo: 44524
+.. date: 2021-07-19-14-04-42
+.. nonce: Nbf2JC
+.. section: Library
+
+Add missing ``__name__`` and ``__qualname__`` attributes to ``typing``
+module classes. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 40897
+.. date: 2021-07-16-13-40-31
+.. nonce: aveAre
+.. section: Library
+
+Give priority to using the current class constructor in
+:func:`inspect.signature`. Patch by Weipeng Hong.
+
+..
+
+.. bpo: 44638
+.. date: 2021-07-16-08-57-27
+.. nonce: EwYKne
+.. section: Library
+
+Add a reference to the zipp project and hint as to how to use it.
+
+..
+
+.. bpo: 44648
+.. date: 2021-07-15-16-51-32
+.. nonce: 2o49TB
+.. section: Library
+
+Fixed wrong error being thrown by :func:`inspect.getsource` when examining a
+class in the interactive session. Instead of :exc:`TypeError`, it should be
+:exc:`OSError` with appropriate error message.
+
+..
+
+.. bpo: 44608
+.. date: 2021-07-13-09-01-33
+.. nonce: R3IcM1
+.. section: Library
+
+Fix memory leak in :func:`_tkinter._flatten` if it is called with a sequence
+or set, but not list or tuple.
+
+..
+
+.. bpo: 44594
+.. date: 2021-07-12-10-32-48
+.. nonce: eEa5zi
+.. section: Library
+
+Fix an edge case of :class:`ExitStack` and :class:`AsyncExitStack` exception
+chaining. They will now match ``with`` block behavior when ``__context__``
+is explicitly set to ``None`` when the exception is in flight.
+
+..
+
+.. bpo: 42799
+.. date: 2021-07-10-19-55-13
+.. nonce: ad4tq8
+.. section: Library
+
+In :mod:`fnmatch`, the cache size for compiled regex patterns
+(:func:`functools.lru_cache`) was bumped up from 256 to 32768, affecting
+functions: :func:`fnmatch.fnmatch`, :func:`fnmatch.fnmatchcase`,
+:func:`fnmatch.filter`.
+
+..
+
+.. bpo: 41928
+.. date: 2021-07-09-07-14-37
+.. nonce: Q1jMrr
+.. section: Library
+
+Update :func:`shutil.copyfile` to raise :exc:`FileNotFoundError` instead of
+confusing :exc:`IsADirectoryError` when a path ending with a
+:const:`os.path.sep` does not exist; :func:`shutil.copy` and
+:func:`shutil.copy2` are also affected.
+
+..
+
+.. bpo: 44569
+.. date: 2021-07-08-12-22-54
+.. nonce: KZ02v9
+.. section: Library
+
+Added the :func:`StackSummary.format_frame` function in :mod:`traceback`.
+This allows users to customize the way individual lines are formatted in
+tracebacks without re-implementing logic to handle recursive tracebacks.
+
+..
+
+.. bpo: 44566
+.. date: 2021-07-05-18-13-25
+.. nonce: o51Bd1
+.. section: Library
+
+handle StopIteration subclass raised from @contextlib.contextmanager
+generator
+
+..
+
+.. bpo: 44558
+.. date: 2021-07-04-21-16-53
+.. nonce: cm7Slv
+.. section: Library
+
+Make the implementation consistency of :func:`~operator.indexOf` between C
+and Python versions. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 41249
+.. date: 2021-07-04-11-33-34
+.. nonce: sHdwBE
+.. section: Library
+
+Fixes ``TypedDict`` to work with ``typing.get_type_hints()`` and postponed
+evaluation of annotations across modules.
+
+..
+
+.. bpo: 44554
+.. date: 2021-07-02-18-17-56
+.. nonce: aBUmJo
+.. section: Library
+
+Refactor argument processing in :func:`pdb.main` to simplify detection of
+errors in input loading and clarify behavior around module or script
+invocation.
+
+..
+
+.. bpo: 34798
+.. date: 2021-06-30-13-29-49
+.. nonce: t7FCa0
+.. section: Library
+
+Break up paragraph about :class:`pprint.PrettyPrinter` construction
+parameters to make it easier to read.
+
+..
+
+.. bpo: 44539
+.. date: 2021-06-30-11-34-35
+.. nonce: nP0Xi4
+.. section: Library
+
+Added support for recognizing JPEG files without JFIF or Exif markers.
+
+..
+
+.. bpo: 44461
+.. date: 2021-06-29-21-17-17
+.. nonce: acqRnV
+.. section: Library
+
+Fix bug with :mod:`pdb`'s handling of import error due to a package which
+does not have a ``__main__`` module
+
+..
+
+.. bpo: 43625
+.. date: 2021-06-29-07-27-08
+.. nonce: ZlAxhp
+.. section: Library
+
+Fix a bug in the detection of CSV file headers by
+:meth:`csv.Sniffer.has_header` and improve documentation of same.
+
+..
+
+.. bpo: 44516
+.. date: 2021-06-26-12-27-14
+.. nonce: BVyX_y
+.. section: Library
+
+Update vendored pip to 21.1.3
+
+..
+
+.. bpo: 42892
+.. date: 2021-06-24-19-16-20
+.. nonce: qvRNhI
+.. section: Library
+
+Fixed an exception thrown while parsing a malformed multipart email by
+:class:`email.message.EmailMessage`.
+
+..
+
+.. bpo: 44468
+.. date: 2021-06-23-19-02-00
+.. nonce: -klV5-
+.. section: Library
+
+:func:`typing.get_type_hints` now finds annotations in classes and base
+classes with unexpected ``__module__``. Previously, it skipped those MRO
+elements.
+
+..
+
+.. bpo: 44491
+.. date: 2021-06-23-01-33-01
+.. nonce: tiOlr5
+.. section: Library
+
+Allow clearing the :mod:`sqlite3` authorizer callback by passing
+:const:`None` to :meth:`~sqlite3.Connection.set_authorizer`. Patch by Erlend
+E. Aasland.
+
+..
+
+.. bpo: 43977
+.. date: 2021-06-22-16-45-48
+.. nonce: bamAGF
+.. section: Library
+
+Set the proper :const:`Py_TPFLAGS_MAPPING` and :const:`Py_TPFLAGS_SEQUENCE`
+flags for subclasses created before a parent has been registered as a
+:class:`collections.abc.Mapping` or :class:`collections.abc.Sequence`.
+
+..
+
+.. bpo: 44482
+.. date: 2021-06-22-08-43-04
+.. nonce: U9GznK
+.. section: Library
+
+Fix very unlikely resource leak in :mod:`glob` in alternate Python
+implementations.
+
+..
+
+.. bpo: 44466
+.. date: 2021-06-21-12-43-04
+.. nonce: NSm6mv
+.. section: Library
+
+The :mod:`faulthandler` module now detects if a fatal error occurs during a
+garbage collector collection. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44471
+.. date: 2021-06-21-10-46-58
+.. nonce: 2QjXv_
+.. section: Library
+
+A :exc:`TypeError` is now raised instead of an :exc:`AttributeError` in
+:meth:`contextlib.ExitStack.enter_context` and
+:meth:`contextlib.AsyncExitStack.enter_async_context` for objects which do
+not support the :term:`context manager` or :term:`asynchronous context
+manager` protocols correspondingly.
+
+..
+
+.. bpo: 44404
+.. date: 2021-06-20-19-01-11
+.. nonce: McfrYB
+.. section: Library
+
+:mod:`tkinter`'s ``after()`` method now supports callables without the
+``__name__`` attribute.
+
+..
+
+.. bpo: 41546
+.. date: 2021-06-20-14-03-18
+.. nonce: lO1jXU
+.. section: Library
+
+Make :mod:`pprint` (like the builtin ``print``) not attempt to write to
+``stdout`` when it is ``None``.
+
+..
+
+.. bpo: 44458
+.. date: 2021-06-20-07-14-46
+.. nonce: myqCQ0
+.. section: Library
+
+``BUFFER_BLOCK_SIZE`` is now declared static, to avoid linking collisions
+when bz2, lmza or zlib are statically linked.
+
+..
+
+.. bpo: 44464
+.. date: 2021-06-19-21-52-27
+.. nonce: U2oa-a
+.. section: Library
+
+Remove exception for flake8 in deprecated importlib.metadata interfaces.
+Sync with importlib_metadata 4.6.
+
+..
+
+.. bpo: 44446
+.. date: 2021-06-17-22-39-34
+.. nonce: qwdRic
+.. section: Library
+
+Take into account that ``lineno`` might be ``None`` in
+:class:`traceback.FrameSummary`.
+
+..
+
+.. bpo: 44439
+.. date: 2021-06-17-15-01-51
+.. nonce: 1S7QhT
+.. section: Library
+
+Fix in :meth:`bz2.BZ2File.write` / :meth:`lzma.LZMAFile.write` methods, when
+the input data is an object that supports the buffer protocol, the file
+length may be wrong.
+
+..
+
+.. bpo: 44434
+.. date: 2021-06-16-16-52-14
+.. nonce: SQS4Pg
+.. section: Library
+
+_thread.start_new_thread() no longer calls PyThread_exit_thread() explicitly
+at the thread exit, the call was redundant. On Linux with the glibc,
+pthread_exit() aborts the whole process if dlopen() fails to open
+libgcc_s.so file (ex: EMFILE error). Patch by Victor Stinner.
+
+..
+
+.. bpo: 42972
+.. date: 2021-06-15-13-51-25
+.. nonce: UnyYo1
+.. section: Library
+
+The _thread.RLock type now fully implement the GC protocol: add a traverse
+function and the :const:`Py_TPFLAGS_HAVE_GC` flag. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44422
+.. date: 2021-06-14-23-28-17
+.. nonce: BlWOgv
+.. section: Library
+
+The :func:`threading.enumerate` function now uses a reentrant lock to
+prevent a hang on reentrant call. Patch by Victor Stinner.
+
+..
+
+.. bpo: 38291
+.. date: 2021-06-14-14-19-11
+.. nonce: ee4cSX
+.. section: Library
+
+Importing typing.io or typing.re now prints a ``DeprecationWarning``.
+
+..
+
+.. bpo: 37880
+.. date: 2021-06-13-00-16-56
+.. nonce: 5bTrkw
+.. section: Library
+
+argparse actions store_const and append_const each receive a default value
+of None when the ``const`` kwarg is not provided. Previously, this raised a
+:exc:`TypeError`.
+
+..
+
+.. bpo: 44389
+.. date: 2021-06-12-22-58-20
+.. nonce: WTRnoC
+.. section: Library
+
+Fix deprecation of :data:`ssl.OP_NO_TLSv1_3`
+
+..
+
+.. bpo: 27827
+.. date: 2021-06-12-21-25-35
+.. nonce: TMWh1i
+.. section: Library
+
+:meth:`pathlib.PureWindowsPath.is_reserved` now identifies a greater range
+of reserved filenames, including those with trailing spaces or colons.
+
+..
+
+.. bpo: 44395
+.. date: 2021-06-12-10-08-14
+.. nonce: PcW6Sx
+.. section: Library
+
+Fix :meth:`~email.message.MIMEPart.as_string` to pass unixfrom properly.
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 34266
+.. date: 2021-06-10-21-53-46
+.. nonce: k3fxnm
+.. section: Library
+
+Handle exceptions from parsing the arg of :mod:`pdb`'s run/restart command.
+
+..
+
+.. bpo: 44362
+.. date: 2021-06-10-20-07-32
+.. nonce: oVOMfd
+.. section: Library
+
+Improve :mod:`ssl` module's deprecation messages, error reporting, and
+documentation for deprecations.
+
+..
+
+.. bpo: 44342
+.. date: 2021-06-10-15-06-47
+.. nonce: qqkGlj
+.. section: Library
+
+[Enum] Change pickling from by-value to by-name.
+
+..
+
+.. bpo: 44356
+.. date: 2021-06-10-08-35-38
+.. nonce: 6oDFhO
+.. section: Library
+
+[Enum] Allow multiple data-type mixins if they are all the same.
+
+..
+
+.. bpo: 44351
+.. date: 2021-06-10-07-26-12
+.. nonce: rvyf2v
+.. section: Library
+
+Restore back :func:`parse_makefile` in :mod:`distutils.sysconfig` because it
+behaves differently than the similar implementation in :mod:`sysconfig`.
+
+..
+
+.. bpo: 35800
+.. date: 2021-06-09-10-08-32
+.. nonce: 3hmkWw
+.. section: Library
+
+:class:`smtpd.MailmanProxy` is now removed as it is unusable without an
+external module, ``mailman``. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 44357
+.. date: 2021-06-09-08-32-39
+.. nonce: 70Futb
+.. section: Library
+
+Added a function that returns cube root of the given number
+:func:`math.cbrt`
+
+..
+
+.. bpo: 44339
+.. date: 2021-06-08-17-47-38
+.. nonce: 9JwMSc
+.. section: Library
+
+Change ``math.pow(±0.0, -math.inf)`` to return ``inf`` instead of raising
+``ValueError``. This brings the special-case handling of ``math.pow`` into
+compliance with the IEEE 754 standard.
+
+..
+
+.. bpo: 44242
+.. date: 2021-06-07-10-26-14
+.. nonce: MKeMCQ
+.. section: Library
+
+Remove missing flag check from Enum creation and move into a ``verify``
+decorator.
+
+..
+
+.. bpo: 44246
+.. date: 2021-05-31-11-34-56
+.. nonce: yHAkF0
+.. section: Library
+
+In ``importlib.metadata``, restore compatibility in the result from
+``Distribution.entry_points`` (``EntryPoints``) to honor expectations in
+older implementations and issuing deprecation warnings for these cases: A.
+``EntryPoints`` objects are once again mutable, allowing for ``sort()``
+and other list-based mutation operations. Avoid deprecation warnings by
+casting to a mutable sequence (e.g. ``list(dist.entry_points).sort()``).
+B. ``EntryPoints`` results once again allow for access by index. To avoid
+deprecation warnings, cast the result to a Sequence first (e.g.
+``tuple(dist.entry_points)[0]``).
+
+..
+
+.. bpo: 44246
+.. date: 2021-05-31-11-28-03
+.. nonce: nhmt-v
+.. section: Library
+
+In importlib.metadata.entry_points, de-duplication of distributions no
+longer requires loading the full metadata for PathDistribution objects,
+improving entry point loading performance by ~10x.
+
+..
+
+.. bpo: 43858
+.. date: 2021-05-31-04-51-02
+.. nonce: r7LOu6
+.. section: Library
+
+Added a function that returns a copy of a dict of logging levels:
+:func:`logging.getLevelNamesMapping`
+
+..
+
+.. bpo: 44260
+.. date: 2021-05-30-13-32-09
+.. nonce: ROEbVd
+.. section: Library
+
+The :class:`random.Random` constructor no longer reads system entropy
+without need.
+
+..
+
+.. bpo: 44254
+.. date: 2021-05-29-01-05-43
+.. nonce: f06xDm
+.. section: Library
+
+On Mac, give turtledemo button text a color that works on both light or dark
+background. Programmers cannot control the latter.
+
+..
+
+.. bpo: 44258
+.. date: 2021-05-28-09-43-33
+.. nonce: nh5F7R
+.. section: Library
+
+Support PEP 515 for Fraction's initialization from string.
+
+..
+
+.. bpo: 44235
+.. date: 2021-05-26-22-04-40
+.. nonce: qFBYpp
+.. section: Library
+
+Remove deprecated functions in the :mod:`gettext`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 38693
+.. date: 2021-05-26-14-50-06
+.. nonce: NkMacJ
+.. section: Library
+
+Prefer f-strings to ``.format`` in importlib.resources.
+
+..
+
+.. bpo: 33693
+.. date: 2021-05-26-13-34-37
+.. nonce: 3okzdo
+.. section: Library
+
+Importlib.metadata now prefers f-strings to .format.
+
+..
+
+.. bpo: 44241
+.. date: 2021-05-26-13-15-51
+.. nonce: TBqej8
+.. section: Library
+
+Incorporate minor tweaks from importlib_metadata 4.1: SimplePath protocol,
+support for Metadata 2.2.
+
+..
+
+.. bpo: 43216
+.. date: 2021-05-25-23-26-38
+.. nonce: xTUyyX
+.. section: Library
+
+Remove the :func:`@asyncio.coroutine <asyncio.coroutine>` :term:`decorator`
+enabling legacy generator-based coroutines to be compatible with async/await
+code; remove :class:`asyncio.coroutines.CoroWrapper` used for wrapping
+legacy coroutine objects in the debug mode. The decorator has been
+deprecated since Python 3.8 and the removal was initially scheduled for
+Python 3.10. Patch by Illia Volochii.
+
+..
+
+.. bpo: 44210
+.. date: 2021-05-21-21-23-43
+.. nonce: 5afQ3K
+.. section: Library
+
+Make importlib.metadata._meta.PackageMetadata public.
+
+..
+
+.. bpo: 43643
+.. date: 2021-05-21-12-12-35
+.. nonce: GWnmcF
+.. section: Library
+
+Declare readers.MultiplexedPath.name as a property per the spec.
+
+..
+
+.. bpo: 27334
+.. date: 2021-05-18-00-17-21
+.. nonce: 32EJZi
+.. section: Library
+
+The :mod:`sqlite3` context manager now performs a rollback (thus releasing
+the database lock) if commit failed. Patch by Luca Citi and Erlend E.
+Aasland.
+
+..
+
+.. bpo: 4928
+.. date: 2021-05-17-21-05-06
+.. nonce: Ot2yjO
+.. section: Library
+
+Documented existing behavior on POSIX: NamedTemporaryFiles are not deleted
+when creating process is killed with SIGKILL
+
+..
+
+.. bpo: 44154
+.. date: 2021-05-17-07-24-24
+.. nonce: GRI5bf
+.. section: Library
+
+Optimize :class:`fractions.Fraction` pickling for large components.
+
+..
+
+.. bpo: 33433
+.. date: 2021-05-16-17-48-24
+.. nonce: MyzO71
+.. section: Library
+
+For IPv4 mapped IPv6 addresses (:rfc:`4291` Section 2.5.5.2), the
+:mod:`ipaddress.IPv6Address.is_private` check is deferred to the mapped IPv4
+address. This solves a bug where public mapped IPv4 addresses were
+considered private by the IPv6 check.
+
+..
+
+.. bpo: 44150
+.. date: 2021-05-16-11-57-38
+.. nonce: xAhhik
+.. section: Library
+
+Add optional *weights* argument to statistics.fmean().
+
+..
+
+.. bpo: 44142
+.. date: 2021-05-16-02-24-23
+.. nonce: t-XU8k
+.. section: Library
+
+:func:`ast.unparse` will now drop the redundant parentheses when tuples used
+as assignment targets (e.g in for loops).
+
+..
+
+.. bpo: 44145
+.. date: 2021-05-16-00-00-38
+.. nonce: ko5SJ7
+.. section: Library
+
+:mod:`hmac` computations were not releasing the GIL while calling the
+OpenSSL ``HMAC_Update`` C API (a new feature in 3.9). This unintentionally
+prevented parallel computation as other :mod:`hashlib` algorithms support.
+
+..
+
+.. bpo: 44095
+.. date: 2021-05-14-16-06-02
+.. nonce: v_pLwY
+.. section: Library
+
+:class:`zipfile.Path` now supports :attr:`zipfile.Path.stem`,
+:attr:`zipfile.Path.suffixes`, and :attr:`zipfile.Path.suffix` attributes.
+
+..
+
+.. bpo: 44077
+.. date: 2021-05-13-19-44-38
+.. nonce: 04b2a4
+.. section: Library
+
+It's now possible to receive the type of service (ToS), a.k.a.
+differentiated services (DS), a.k.a. differentiated services code point
+(DSCP) and explicit congestion notification (ECN) IP header fields with
+``socket.IP_RECVTOS``.
+
+..
+
+.. bpo: 37788
+.. date: 2021-05-13-19-07-28
+.. nonce: adeFcf
+.. section: Library
+
+Fix a reference leak when a Thread object is never joined.
+
+..
+
+.. bpo: 38908
+.. date: 2021-05-12-16-43-21
+.. nonce: nM2_rO
+.. section: Library
+
+Subclasses of ``typing.Protocol`` which only have data variables declared
+will now raise a ``TypeError`` when checked with ``isinstance`` unless they
+are decorated with :func:`runtime_checkable`. Previously, these checks
+passed silently. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 44098
+.. date: 2021-05-10-17-45-00
+.. nonce: _MoxuZ
+.. section: Library
+
+``typing.ParamSpec`` will no longer be found in the ``__parameters__`` of
+most :mod:`typing` generics except in valid use locations specified by
+:pep:`612`. This prevents incorrect usage like ``typing.List[P][int]``. This
+change means incorrect usage which may have passed silently in 3.10 beta 1
+and earlier will now error.
+
+..
+
+.. bpo: 44089
+.. date: 2021-05-09-22-52-34
+.. nonce: IoANsN
+.. section: Library
+
+Allow subclassing ``csv.Error`` in 3.10 (it was allowed in 3.9 and earlier
+but was disallowed in early versions of 3.10).
+
+..
+
+.. bpo: 44081
+.. date: 2021-05-09-03-26-31
+.. nonce: A-Mrto
+.. section: Library
+
+:func:`ast.unparse` now doesn't use redundant spaces to separate ``lambda``
+and the ``:`` if there are no parameters.
+
+..
+
+.. bpo: 44061
+.. date: 2021-05-07-08-39-23
+.. nonce: MvElG6
+.. section: Library
+
+Fix regression in previous release when calling :func:`pkgutil.iter_modules`
+with a list of :class:`pathlib.Path` objects
+
+..
+
+.. bpo: 44059
+.. date: 2021-05-06-16-01-55
+.. nonce: GF5r6O
+.. section: Library
+
+Register the SerenityOS Browser in the :mod:`webbrowser` module.
+
+..
+
+.. bpo: 36515
+.. date: 2021-05-05-11-44-49
+.. nonce: uOSa3q
+.. section: Library
+
+The :mod:`hashlib` module no longer does unaligned memory accesses when
+compiled for ARM platforms.
+
+..
+
+.. bpo: 40465
+.. date: 2021-05-03-19-59-14
+.. nonce: 1tB4Y0
+.. section: Library
+
+Remove random module features deprecated in Python 3.9.
+
+..
+
+.. bpo: 44018
+.. date: 2021-05-03-10-07-43
+.. nonce: VDyW8f
+.. section: Library
+
+random.seed() no longer mutates bytearray inputs.
+
+..
+
+.. bpo: 38352
+.. date: 2021-05-02-13-54-25
+.. nonce: N9MlhV
+.. section: Library
+
+Add ``IO``, ``BinaryIO``, ``TextIO``, ``Match``, and ``Pattern`` to
+``typing.__all__``. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 44002
+.. date: 2021-05-01-15-43-37
+.. nonce: KLT_wd
+.. section: Library
+
+:mod:`urllib.parse` now uses :func:`functool.lru_cache` for its internal URL
+splitting and quoting caches instead of rolling its own like its the '90s.
+
+The undocumented internal :mod:`urllib.parse` ``Quoted`` class API is now
+deprecated, for removal in 3.14.
+
+..
+
+.. bpo: 43972
+.. date: 2021-04-30-16-58-24
+.. nonce: Y2r9lg
+.. section: Library
+
+When :class:`http.server.SimpleHTTPRequestHandler` sends a ``301 (Moved
+Permanently)`` for a directory path not ending with `/`, add a
+``Content-Length: 0`` header. This improves the behavior for certain
+clients.
+
+..
+
+.. bpo: 28528
+.. date: 2021-04-29-00-48-00
+.. nonce: JLAVWj
+.. section: Library
+
+Fix a bug in :mod:`pdb` where :meth:`~pdb.Pdb.checkline` raises
+:exc:`AttributeError` if it is called after :meth:`~pdb.Pdb.reset`.
+
+..
+
+.. bpo: 43853
+.. date: 2021-04-15-12-02-17
+.. nonce: XXCVAp
+.. section: Library
+
+Improved string handling for :mod:`sqlite3` user-defined functions and
+aggregates:
+
+* It is now possible to pass strings with embedded null characters to UDFs
+* Conversion failures now correctly raise :exc:`MemoryError`
+
+Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43666
+.. date: 2021-03-30-08-39-08
+.. nonce: m72tlH
+.. section: Library
+
+AIX: `Lib/_aix_support.get_platform()` may fail in an AIX WPAR. The fileset
+bos.rte appears to have a builddate in both LPAR and WPAR so this fileset is
+queried rather than bos.mp64. To prevent a similar situation (no builddate
+in ODM) a value (9988) sufficient for completing a build is provided. Patch
+by M Felt.
+
+..
+
+.. bpo: 43650
+.. date: 2021-03-29-00-23-30
+.. nonce: v01tic
+.. section: Library
+
+Fix :exc:`MemoryError` in :func:`shutil.unpack_archive` which fails inside
+:func:`shutil._unpack_zipfile` on large files. Patch by Igor Bolshakov.
+
+..
+
+.. bpo: 43612
+.. date: 2021-03-24-09-40-02
+.. nonce: vMGZ4y
+.. section: Library
+
+:func:`zlib.compress` now accepts a wbits parameter which allows users to
+compress data as a raw deflate block without zlib headers and trailers in
+one go. Previously this required instantiating a ``zlib.compressobj``. It
+also provides a faster alternative to ``gzip.compress`` when wbits=31 is
+used.
+
+..
+
+.. bpo: 43392
+.. date: 2021-03-03-13-32-37
+.. nonce: QQumou
+.. section: Library
+
+:func:`importlib._bootstrap._find_and_load` now implements a two-step check
+to avoid locking when modules have been already imported and are ready. This
+improves performance of repeated calls to :func:`importlib.import_module`
+and :func:`importlib.__import__`.
+
+..
+
+.. bpo: 43318
+.. date: 2021-02-25-08-32-06
+.. nonce: bZJw6V
+.. section: Library
+
+Fix a bug where :mod:`pdb` does not always echo cleared breakpoints.
+
+..
+
+.. bpo: 43234
+.. date: 2021-02-15-22-14-31
+.. nonce: F-vKAT
+.. section: Library
+
+Prohibit passing non-:class:`concurrent.futures.ThreadPoolExecutor`
+executors to :meth:`loop.set_default_executor` following a deprecation in
+Python 3.8. Patch by Illia Volochii.
+
+..
+
+.. bpo: 43232
+.. date: 2021-02-15-21-17-46
+.. nonce: awc4yZ
+.. section: Library
+
+Prohibit previously deprecated potentially disruptive operations on
+:class:`asyncio.trsock.TransportSocket`. Patch by Illia Volochii.
+
+..
+
+.. bpo: 30077
+.. date: 2021-02-04-23-16-03
+.. nonce: v6TqAi
+.. section: Library
+
+Added support for Apple's aifc/sowt pseudo-compression
+
+..
+
+.. bpo: 42971
+.. date: 2021-02-02-20-11-14
+.. nonce: OpVoFu
+.. section: Library
+
+Add definition of ``errno.EQFULL`` for platforms that define this constant
+(such as macOS).
+
+..
+
+.. bpo: 43086
+.. date: 2021-01-31-18-24-54
+.. nonce: 2_P-SH
+.. section: Library
+
+Added a new optional :code:`strict_mode` parameter to *binascii.a2b_base64*.
+When :code:`scrict_mode` is set to :code:`True`, the *a2b_base64* function
+will accept only valid base64 content. More details about what "valid base64
+content" is, can be found in the function's documentation.
+
+..
+
+.. bpo: 43024
+.. date: 2021-01-25-21-24-55
+.. nonce: vAUrIi
+.. section: Library
+
+Improve the help signature of :func:`traceback.print_exception`,
+:func:`traceback.format_exception` and
+:func:`traceback.format_exception_only`.
+
+..
+
+.. bpo: 33809
+.. date: 2021-01-16-18-36-00
+.. nonce: BiMK6V
+.. section: Library
+
+Add the :meth:`traceback.TracebackException.print` method which prints the
+formatted exception information.
+
+..
+
+.. bpo: 42862
+.. date: 2021-01-13-00-02-44
+.. nonce: Z6ACLN
+.. section: Library
+
+:mod:`sqlite3` now utilizes :meth:`functools.lru_cache` to implement the
+connection statement cache. As a small optimisation, the default statement
+cache size has been increased from 100 to 128. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 41818
+.. date: 2020-12-08-01-08-58
+.. nonce: zO8vV7
+.. section: Library
+
+Soumendra Ganguly: add termios.tcgetwinsize(), termios.tcsetwinsize().
+
+..
+
+.. bpo: 40497
+.. date: 2020-10-18-09-42-53
+.. nonce: CRz2sG
+.. section: Library
+
+:meth:`subprocess.check_output` now raises :exc:`ValueError` when the
+invalid keyword argument *check* is passed by user code. Previously such use
+would fail later with a :exc:`TypeError`. Patch by Rémi Lapeyre.
+
+..
+
+.. bpo: 37449
+.. date: 2020-10-11-20-23-48
+.. nonce: f-t3V6
+.. section: Library
+
+``ensurepip`` now uses ``importlib.resources.files()`` traversable APIs
+
+..
+
+.. bpo: 40956
+.. date: 2020-10-01-21-46-34
+.. nonce: _tvsZ7
+.. section: Library
+
+Use Argument Clinic in :mod:`sqlite3`. Patches by Erlend E. Aasland.
+
+..
+
+.. bpo: 41730
+.. date: 2020-09-10-07-23-24
+.. nonce: DyKFi9
+.. section: Library
+
+``DeprecationWarning`` is now raised when importing :mod:`tkinter.tix`,
+which has been deprecated in documentation since Python 3.6.
+
+..
+
+.. bpo: 20684
+.. date: 2020-07-30-14-37-15
+.. nonce: qV35GU
+.. section: Library
+
+Remove unused ``_signature_get_bound_param`` function from :mod:`inspect` -
+by Anthony Sottile.
+
+..
+
+.. bpo: 41402
+.. date: 2020-07-26-18-17-30
+.. nonce: YRkVkp
+.. section: Library
+
+Fix :meth:`email.message.EmailMessage.set_content` when called with binary
+data and ``7bit`` content transfer encoding.
+
+..
+
+.. bpo: 32695
+.. date: 2020-07-13-23-46-59
+.. nonce: tTqqXe
+.. section: Library
+
+The *compresslevel* and *preset* keyword arguments of :func:`tarfile.open`
+are now both documented and tested.
+
+..
+
+.. bpo: 41137
+.. date: 2020-07-01-17-42-41
+.. nonce: AnqbP-
+.. section: Library
+
+Use utf-8 encoding while reading .pdbrc files. Patch by Srinivas Reddy
+Thatiparthy
+
+..
+
+.. bpo: 24391
+.. date: 2020-05-30-10-48-04
+.. nonce: ZCTnhX
+.. section: Library
+
+Improved reprs of :mod:`threading` synchronization objects:
+:class:`~threading.Semaphore`, :class:`~threading.BoundedSemaphore`,
+:class:`~threading.Event` and :class:`~threading.Barrier`.
+
+..
+
+.. bpo: 5846
+.. date: 2020-05-25-23-58-29
+.. nonce: O9BIfm
+.. section: Library
+
+Deprecated the following :mod:`unittest` functions, scheduled for removal in
+Python 3.13:
+
+* :func:`~unittest.findTestCases`
+* :func:`~unittest.makeSuite`
+* :func:`~unittest.getTestCaseNames`
+
+Use :class:`~unittest.TestLoader` methods instead:
+
+* :meth:`unittest.TestLoader.loadTestsFromModule`
+* :meth:`unittest.TestLoader.loadTestsFromTestCase`
+* :meth:`unittest.TestLoader.getTestCaseNames`
+
+Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 40563
+.. date: 2020-05-21-01-42-32
+.. nonce: fDn5bP
+.. section: Library
+
+Support pathlike objects on dbm/shelve. Patch by Hakan Çelik and
+Henry-Joseph Audéoud.
+
+..
+
+.. bpo: 34990
+.. date: 2020-04-24-20-39-38
+.. nonce: 3SmL9M
+.. section: Library
+
+Fixed a Y2k38 bug in the compileall module where it would fail to compile
+files with a modification time after the year 2038.
+
+..
+
+.. bpo: 39549
+.. date: 2020-02-03-21-18-31
+.. nonce: l4a8uH
+.. section: Library
+
+Whereas the code for reprlib.Repr had previously used a hardcoded string
+value of '...', this PR updates it to use of a “fillvalue” attribute, whose
+value defaults to '...' and can be reset in either individual reprlib.Repr
+instances or in subclasses thereof.
+
+..
+
+.. bpo: 37022
+.. date: 2020-01-25-12-58-20
+.. nonce: FUZI25
+.. section: Library
+
+:mod:`pdb` now displays exceptions from ``repr()`` with its ``p`` and ``pp``
+commands.
+
+..
+
+.. bpo: 38840
+.. date: 2020-01-16-23-41-16
+.. nonce: VzzYZz
+.. section: Library
+
+Fix ``test___all__`` on platforms lacking a shared memory implementation.
+
+..
+
+.. bpo: 39359
+.. date: 2020-01-16-13-54-28
+.. nonce: hzTu0h
+.. section: Library
+
+Add one missing check that the password is a bytes object for an encrypted
+zipfile.
+
+..
+
+.. bpo: 38741
+.. date: 2019-11-12-18-59-33
+.. nonce: W7IYkq
+.. section: Library
+
+:mod:`configparser`: using ']' inside a section header will no longer cut
+the section name short at the ']'
+
+..
+
+.. bpo: 38415
+.. date: 2019-10-08-14-08-59
+.. nonce: N1bUw6
+.. section: Library
+
+Added missing behavior to :func:`contextlib.asynccontextmanager` to match
+:func:`contextlib.contextmanager` so decorated functions can themselves be
+decorators.
+
+..
+
+.. bpo: 30256
+.. date: 2019-09-25-13-54-41
+.. nonce: wBkzox
+.. section: Library
+
+Pass multiprocessing BaseProxy argument ``manager_owned`` through AutoProxy.
+
+..
+
+.. bpo: 27513
+.. date: 2019-06-03-23-53-25
+.. nonce: qITN7d
+.. section: Library
+
+:func:`email.utils.getaddresses` now accepts :class:`email.header.Header`
+objects along with string values. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 16379
+.. date: 2019-05-08-15-14-32
+.. nonce: rN5JVe
+.. section: Library
+
+Add SQLite error code and name to :mod:`sqlite3` exceptions. Patch by Aviv
+Palivoda, Daniel Shahaf, and Erlend E. Aasland.
+
+..
+
+.. bpo: 26228
+.. date: 2019-02-26-09-31-59
+.. nonce: wyrHKc
+.. section: Library
+
+pty.spawn no longer hangs on FreeBSD, macOS, and Solaris.
+
+..
+
+.. bpo: 33349
+.. date: 2018-04-24-14-25-07
+.. nonce: Y_0LIr
+.. section: Library
+
+lib2to3 now recognizes async generators everywhere.
+
+..
+
+.. bpo: 29298
+.. date: 2017-09-20-14-43-03
+.. nonce: _78CSN
+.. section: Library
+
+Fix ``TypeError`` when required subparsers without ``dest`` do not receive
+arguments. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 45216
+.. date: 2021-09-18-13-45-19
+.. nonce: o56nyt
+.. section: Documentation
+
+Remove extra documentation listing methods in ``difflib``. It was rendering
+twice in pydoc and was outdated in some places.
+
+..
+
+.. bpo: 45024
+.. date: 2021-09-08-17-20-19
+.. nonce: dkNPNi
+.. section: Documentation
+
+:mod:`collections.abc` documentation has been expanded to explicitly cover
+how instance and subclass checks work, with additional doctest examples and
+an exhaustive list of ABCs which test membership purely by presence of the
+right :term:`special method`\s. Patch by Raymond Hettinger.
+
+..
+
+.. bpo: 44957
+.. date: 2021-08-19-15-53-08
+.. nonce: imqrh3
+.. section: Documentation
+
+Promote PEP 604 union syntax by using it where possible. Also, mention ``X |
+Y`` more prominently in section about ``Union`` and mention ``X | None`` at
+all in section about ``Optional``.
+
+..
+
+.. bpo: 16580
+.. date: 2021-08-13-20-17-59
+.. nonce: MZ_iK9
+.. section: Documentation
+
+Added code equivalents for the :meth:`int.to_bytes` and
+:meth:`int.from_bytes` methods, as well as tests ensuring that these code
+equivalents are valid.
+
+..
+
+.. bpo: 44903
+.. date: 2021-08-13-19-08-03
+.. nonce: aJuvQF
+.. section: Documentation
+
+Removed the othergui.rst file, any references to it, and the list of GUI
+frameworks in the FAQ. In their place I've added links to the Python Wiki
+`page on GUI frameworks <https://wiki.python.org/moin/GuiProgramming>`.
+
+..
+
+.. bpo: 33479
+.. date: 2021-08-11-18-02-06
+.. nonce: rCe4c5
+.. section: Documentation
+
+Tkinter documentation has been greatly expanded with new "Architecture" and
+"Threading model" sections.
+
+..
+
+.. bpo: 36700
+.. date: 2021-08-09-19-58-45
+.. nonce: WPNW5f
+.. section: Documentation
+
+:mod:`base64` RFC references were updated to point to :rfc:`4648`; a section
+was added to point users to the new "security considerations" section of the
+RFC.
+
+..
+
+.. bpo: 44740
+.. date: 2021-07-26-23-48-31
+.. nonce: zMFGMV
+.. section: Documentation
+
+Replaced occurrences of uppercase "Web" and "Internet" with lowercase
+versions per the 2016 revised Associated Press Style Book.
+
+..
+
+.. bpo: 44693
+.. date: 2021-07-25-23-04-15
+.. nonce: JuCbNq
+.. section: Documentation
+
+Update the definition of __future__ in the glossary by replacing the
+confusing word "pseudo-module" with a more accurate description.
+
+..
+
+.. bpo: 35183
+.. date: 2021-07-22-08-28-03
+.. nonce: p9BWTB
+.. section: Documentation
+
+Add typical examples to os.path.splitext docs
+
+..
+
+.. bpo: 30511
+.. date: 2021-07-20-21-03-18
+.. nonce: eMFkRi
+.. section: Documentation
+
+Clarify that :func:`shutil.make_archive` is not thread-safe due to reliance
+on changing the current working directory.
+
+..
+
+.. bpo: 44561
+.. date: 2021-07-18-22-43-14
+.. nonce: T7HpWm
+.. section: Documentation
+
+Update of three expired hyperlinks in Doc/distributing/index.rst: "Project
+structure", "Building and packaging the project", and "Uploading the project
+to the Python Packaging Index".
+
+..
+
+.. bpo: 44651
+.. date: 2021-07-18-22-26-02
+.. nonce: SjT9iY
+.. section: Documentation
+
+Delete entry "coercion" in Doc/glossary.rst for its outdated definition.
+
+..
+
+.. bpo: 42958
+.. date: 2021-07-15-11-19-03
+.. nonce: gC5IHM
+.. section: Documentation
+
+Updated the docstring and docs of :func:`filecmp.cmp` to be more accurate
+and less confusing especially in respect to *shallow* arg.
+
+..
+
+.. bpo: 44631
+.. date: 2021-07-13-22-25-13
+.. nonce: qkGwe4
+.. section: Documentation
+
+Refactored the ``repr()`` code of the ``_Environ`` (os module).
+
+..
+
+.. bpo: 44613
+.. date: 2021-07-12-11-39-20
+.. nonce: DIXNzc
+.. section: Documentation
+
+importlib.metadata is no longer provisional.
+
+..
+
+.. bpo: 44558
+.. date: 2021-07-03-18-25-17
+.. nonce: 0pTknl
+.. section: Documentation
+
+Match the docstring and python implementation of :func:`~operator.countOf`
+to the behavior of its c implementation.
+
+..
+
+.. bpo: 44544
+.. date: 2021-07-02-14-02-29
+.. nonce: _5_aCz
+.. section: Documentation
+
+List all kwargs for :func:`textwrap.wrap`, :func:`textwrap.fill`, and
+:func:`textwrap.shorten`. Now, there are nav links to attributes of
+:class:`TextWrap`, which makes navigation much easier while minimizing
+duplication in the documentation.
+
+..
+
+.. bpo: 38062
+.. date: 2021-06-28-12-13-48
+.. nonce: 9Ehp9O
+.. section: Documentation
+
+Clarify that atexit uses equality comparisons internally.
+
+..
+
+.. bpo: 40620
+.. date: 2021-06-26-17-41-06
+.. nonce: PAYDrB
+.. section: Documentation
+
+Convert examples in tutorial controlflow.rst section 4.3 to be
+interpreter-demo style.
+
+..
+
+.. bpo: 43066
+.. date: 2021-06-24-14-37-16
+.. nonce: Ti7ahX
+.. section: Documentation
+
+Added a warning to :mod:`zipfile` docs: filename arg with a leading slash
+may cause archive to be un-openable on Windows systems.
+
+..
+
+.. bpo: 39452
+.. date: 2021-06-23-15-21-36
+.. nonce: o_I-6d
+.. section: Documentation
+
+Rewrote ``Doc/library/__main__.rst``. Broadened scope of the document to
+explicitly discuss and differentiate between ``__main__.py`` in packages
+versus the ``__name__ == '__main__'`` expression (and the idioms that
+surround it).
+
+..
+
+.. bpo: 13814
+.. date: 2021-06-21-15-46-32
+.. nonce: LDcslu
+.. section: Documentation
+
+In the Design FAQ, answer "Why don't generators support the with statement?"
+
+..
+
+.. bpo: 27752
+.. date: 2021-06-18-18-04-53
+.. nonce: NEByNk
+.. section: Documentation
+
+Documentation of csv.Dialect is more descriptive.
+
+..
+
+.. bpo: 44453
+.. date: 2021-06-18-06-44-45
+.. nonce: 3PIkj2
+.. section: Documentation
+
+Fix documentation for the return type of :func:`sysconfig.get_path`.
+
+..
+
+.. bpo: 44392
+.. date: 2021-06-16-18-09-49
+.. nonce: 6RF1Sc
+.. section: Documentation
+
+Added a new section in the C API documentation for types used in type
+hinting. Documented ``Py_GenericAlias`` and ``Py_GenericAliasType``.
+
+..
+
+.. bpo: 38291
+.. date: 2021-06-14-09-20-37
+.. nonce: VMYa_Q
+.. section: Documentation
+
+Mark ``typing.io`` and ``typing.re`` as deprecated since Python 3.8 in the
+documentation. They were never properly supported by type checkers.
+
+..
+
+.. bpo: 44322
+.. date: 2021-06-06-14-12-00
+.. nonce: K0PHfE
+.. section: Documentation
+
+Document that SyntaxError args have a details tuple and that details are
+adjusted for errors in f-string field replacement expressions.
+
+..
+
+.. bpo: 42392
+.. date: 2021-05-26-11-16-33
+.. nonce: oxRx6E
+.. section: Documentation
+
+Document the deprecation and removal of the ``loop`` parameter for many
+functions and classes in :mod:`asyncio`.
+
+..
+
+.. bpo: 44195
+.. date: 2021-05-23-09-11-28
+.. nonce: 1bqkOs
+.. section: Documentation
+
+Corrected references to ``TraversableResources`` in docs. There is no
+``TraversableReader``.
+
+..
+
+.. bpo: 41963
+.. date: 2021-05-17-20-03-47
+.. nonce: eUz9_o
+.. section: Documentation
+
+Document that ``ConfigParser`` strips off comments when reading
+configuration files.
+
+..
+
+.. bpo: 44072
+.. date: 2021-05-08-09-48-05
+.. nonce: fb2x5I
+.. section: Documentation
+
+Correct where in the numeric ABC hierarchy ``**`` support is added, i.e., in
+numbers.Complex, not numbers.Integral.
+
+..
+
+.. bpo: 43558
+.. date: 2021-05-07-12-27-09
+.. nonce: UGhA8R
+.. section: Documentation
+
+Add the remark to :mod:`dataclasses` documentation that the :meth:`__init__`
+of any base class has to be called in :meth:`__post_init__`, along with a
+code example.
+
+..
+
+.. bpo: 44025
+.. date: 2021-05-03-22-08-08
+.. nonce: gcB7iP
+.. section: Documentation
+
+Clarify when '_' in match statements is a keyword, and when not.
+
+..
+
+.. bpo: 41706
+.. date: 2020-09-03-13-37-19
+.. nonce: _zXWOR
+.. section: Documentation
+
+Fix docs about how methods like ``__add__`` are invoked when evaluating
+operator expressions.
+
+..
+
+.. bpo: 41621
+.. date: 2020-08-24-13-35-04
+.. nonce: nqaw9G
+.. section: Documentation
+
+Document that :class:`collections.defaultdict` parameter ``default_factory``
+defaults to None and is positional-only.
+
+..
+
+.. bpo: 41576
+.. date: 2020-08-21-22-59-37
+.. nonce: 7a6CQR
+.. section: Documentation
+
+document BaseException in favor of bare except
+
+..
+
+.. bpo: 21760
+.. date: 2020-03-21-01-19-28
+.. nonce: CqofIc
+.. section: Documentation
+
+The description for __file__ fixed. Patch by Furkan Onder
+
+..
+
+.. bpo: 39498
+.. date: 2020-01-30-05-18-48
+.. nonce: Nu3sFL
+.. section: Documentation
+
+Add a "Security Considerations" index which links to standard library
+modules that have explicitly documented security considerations.
+
+..
+
+.. bpo: 33479
+.. date: 2018-05-19-15-59-29
+.. nonce: 4cLlxo
+.. section: Documentation
+
+Remove the unqualified claim that tkinter is threadsafe. It has not been
+true for several years and likely never was. An explanation of what is true
+may be added later, after more discussion, and possibly after patching
+_tkinter.c,
+
+..
+
+.. bpo: 40173
+.. date: 2021-09-30-16-54-39
+.. nonce: J_slCw
+.. section: Tests
+
+Fix :func:`test.support.import_helper.import_fresh_module`.
+
+..
+
+.. bpo: 45280
+.. date: 2021-09-25-11-05-31
+.. nonce: 3MA6lC
+.. section: Tests
+
+Add a test case for empty :class:`typing.NamedTuple`.
+
+..
+
+.. bpo: 45269
+.. date: 2021-09-24-10-41-49
+.. nonce: 8jKEr8
+.. section: Tests
+
+Cover case when invalid ``markers`` type is supplied to ``c_make_encoder``.
+
+..
+
+.. bpo: 45128
+.. date: 2021-09-16-17-22-35
+.. nonce: Jz6fl2
+.. section: Tests
+
+Fix ``test_multiprocessing_fork`` failure due to ``test_logging`` and
+``sys.modules`` manipulation.
+
+..
+
+.. bpo: 45209
+.. date: 2021-09-15-23-32-39
+.. nonce: 55ntL5
+.. section: Tests
+
+Fix ``UserWarning: resource_tracker`` warning in
+``_test_multiprocessing._TestSharedMemory.test_shared_memory_cleaned_after_process_termination``
+
+..
+
+.. bpo: 45185
+.. date: 2021-09-14-14-54-04
+.. nonce: qFx5I6
+.. section: Tests
+
+Enables ``TestEnumerations`` test cases in ``test_ssl`` suite.
+
+..
+
+.. bpo: 45195
+.. date: 2021-09-14-13-16-18
+.. nonce: EyQR1G
+.. section: Tests
+
+Fix test_readline.test_nonascii(): sometimes, the newline character is not
+written at the end, so don't expect it in the output. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 45156
+.. date: 2021-09-13-00-28-17
+.. nonce: 8oomV3
+.. section: Tests
+
+Fixes infinite loop on :func:`unittest.mock.seal` of mocks created by
+:func:`~unittest.create_autospec`.
+
+..
+
+.. bpo: 45125
+.. date: 2021-09-11-22-08-18
+.. nonce: FVSzs2
+.. section: Tests
+
+Improves pickling tests and docs of ``SharedMemory`` and ``SharableList``
+objects.
+
+..
+
+.. bpo: 44860
+.. date: 2021-09-08-13-01-37
+.. nonce: qXd0kx
+.. section: Tests
+
+Update ``test_sysconfig.test_user_similar()`` for the posix_user scheme:
+``platlib`` doesn't use :data:`sys.platlibdir`. Patch by Victor Stinner.
+
+..
+
+.. bpo: 45052
+.. date: 2021-09-06-19-00-29
+.. nonce: yrOK3J
+.. section: Tests
+
+``WithProcessesTestSharedMemory.test_shared_memory_basics`` test was
+ignored, because ``self.assertEqual(sms.size, sms2.size)`` line was failing.
+It is now removed and test is unskipped.
+
+The main motivation for this line to be removed from the test is that the
+``size`` of ``SharedMemory`` is not ever guaranteed to be the same. It is
+decided by the platform.
+
+..
+
+.. bpo: 44895
+.. date: 2021-09-01-17-17-44
+.. nonce: kV7H77
+.. section: Tests
+
+libregrtest now clears the type cache later to reduce the risk of false
+alarm when checking for reference leaks. Previously, the type cache was
+cleared too early and libregrtest raised a false alarm about reference leaks
+under very specific conditions. Patch by Irit Katriel and Victor Stinner.
+
+..
+
+.. bpo: 45042
+.. date: 2021-08-30-11-54-14
+.. nonce: QMz3X8
+.. section: Tests
+
+Fixes that test classes decorated with
+``@hashlib_helper.requires_hashdigest`` were skipped all the time.
+
+..
+
+.. bpo: 25130
+.. date: 2021-08-27-22-37-19
+.. nonce: ig4oJe
+.. section: Tests
+
+Add calls of :func:`gc.collect` in tests to support PyPy.
+
+..
+
+.. bpo: 45011
+.. date: 2021-08-26-14-20-44
+.. nonce: mQZdXU
+.. section: Tests
+
+Made tests relying on the :mod:`_asyncio` C extension module optional to
+allow running on alternative Python implementations. Patch by Serhiy
+Storchaka.
+
+..
+
+.. bpo: 44949
+.. date: 2021-08-18-18-30-12
+.. nonce: VE5ENv
+.. section: Tests
+
+Fix auto history tests of test_readline: sometimes, the newline character is
+not written at the end, so don't expect it in the output.
+
+..
+
+.. bpo: 44891
+.. date: 2021-08-13-12-11-06
+.. nonce: T9_mBT
+.. section: Tests
+
+Tests were added to clarify :func:`id` is preserved when ``obj * 1`` is used
+on :class:`str` and :class:`bytes` objects. Patch by Nikita Sobolev.
+
+..
+
+.. bpo: 44852
+.. date: 2021-08-06-18-36-04
+.. nonce: sUL8YX
+.. section: Tests
+
+Add ability to wholesale silence DeprecationWarnings while running the
+regression test suite.
+
+..
+
+.. bpo: 40928
+.. date: 2021-08-06-00-07-15
+.. nonce: aIwb6G
+.. section: Tests
+
+Notify users running test_decimal regression tests on macOS of potential
+harmless "malloc can't allocate region" messages spewed by test_decimal.
+
+..
+
+.. bpo: 44734
+.. date: 2021-07-24-20-09-15
+.. nonce: KKsNOV
+.. section: Tests
+
+Fixed floating point precision issue in turtle tests.
+
+..
+
+.. bpo: 44708
+.. date: 2021-07-22-16-38-39
+.. nonce: SYNaac
+.. section: Tests
+
+Regression tests, when run with -w, are now re-running only the affected
+test methods instead of re-running the entire test file.
+
+..
+
+.. bpo: 42095
+.. date: 2021-07-17-11-41-20
+.. nonce: kCB7oj
+.. section: Tests
+
+Added interop tests for Apple plists: generate plist files with Python
+plistlib and parse with Apple plutil; and the other way round.
+
+..
+
+.. bpo: 44647
+.. date: 2021-07-16-14-02-33
+.. nonce: 5LzqIy
+.. section: Tests
+
+Added a permanent Unicode-valued environment variable to regression tests to
+ensure they handle this use case in the future. If your test environment
+breaks because of that, report a bug to us, and temporarily set
+PYTHONREGRTEST_UNICODE_GUARD=0 in your test environment.
+
+..
+
+.. bpo: 44515
+.. date: 2021-06-26-18-37-36
+.. nonce: e9fO6f
+.. section: Tests
+
+Adjust recently added contextlib tests to avoid assuming the use of a
+refcounted GC
+
+..
+
+.. bpo: 44287
+.. date: 2021-06-21-17-53-41
+.. nonce: YON57s
+.. section: Tests
+
+Fix asyncio test_popen() of test_windows_utils by using a longer timeout.
+Use military grade battle-tested :data:`test.support.SHORT_TIMEOUT` timeout
+rather than a hardcoded timeout of 10 seconds: it's 30 seconds by default,
+but it is made longer on slow buildbots. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44451
+.. date: 2021-06-18-15-19-35
+.. nonce: aj5pqE
+.. section: Tests
+
+Reset ``DeprecationWarning`` filters in
+``test.test_importlib.test_metadata_api.APITests.test_entry_points_by_index``
+to avoid ``StopIteration`` error if ``DeprecationWarnings`` are ignored.
+
+..
+
+.. bpo: 44363
+.. date: 2021-06-10-11-19-43
+.. nonce: -K9jD0
+.. section: Tests
+
+Account for address sanitizer in test_capi. test_capi now passes when run
+GCC address sanitizer.
+
+..
+
+.. bpo: 44364
+.. date: 2021-06-09-15-32-05
+.. nonce: zu9Zee
+.. section: Tests
+
+Add non integral tests for :func:`math.sqrt` function.
+
+..
+
+.. bpo: 43921
+.. date: 2021-06-03-03-29-34
+.. nonce: nwH1FS
+.. section: Tests
+
+Fix test_ssl.test_wrong_cert_tls13(): use ``suppress_ragged_eofs=False``,
+since ``read()`` can raise :exc:`ssl.SSLEOFError` on Windows. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 43921
+.. date: 2021-06-02-17-41-42
+.. nonce: xP7yZ4
+.. section: Tests
+
+Fix test_pha_required_nocert() of test_ssl: catch two more EOF cases (when
+the ``recv()`` method returns an empty string). Patch by Victor Stinner.
+
+..
+
+.. bpo: 44131
+.. date: 2021-05-14-14-13-44
+.. nonce: YPizoC
+.. section: Tests
+
+Add test_frozenmain to test_embed to test the :c:func:`Py_FrozenMain` C
+function. Patch by Victor Stinner.
+
+..
+
+.. bpo: 31904
+.. date: 2021-05-07-15-46-04
+.. nonce: 8dk3la
+.. section: Tests
+
+Ignore error string case in test_file_not_exists().
+
+..
+
+.. bpo: 42083
+.. date: 2021-05-04-18-10-57
+.. nonce: EMS2TK
+.. section: Tests
+
+Add test to check that ``PyStructSequence_NewType`` accepts a
+``PyStructSequence_Desc`` with ``doc`` field set to ``NULL``.
+
+..
+
+.. bpo: 35753
+.. date: 2020-10-25-19-20-26
+.. nonce: 2LT-hO
+.. section: Tests
+
+Fix crash in doctest when doctest parses modules that include unwrappable
+functions by skipping those functions.
+
+..
+
+.. bpo: 30256
+.. date: 2019-09-25-18-10-10
+.. nonce: A5i76Q
+.. section: Tests
+
+Add test for nested queues when using ``multiprocessing`` shared objects
+``AutoProxy[Queue]`` inside ``ListProxy`` and ``DictProxy``
+
+..
+
+.. bpo: 45220
+.. date: 2021-09-16-18-00-43
+.. nonce: TgbkvW
+.. section: Build
+
+Avoid building with the Windows 11 SDK previews automatically. This may be
+overridden by setting the ``DefaultWindowsSDKVersion`` environment variable
+before building.
+
+..
+
+.. bpo: 45020
+.. date: 2021-09-14-10-07-23
+.. nonce: _VGGPv
+.. section: Build
+
+Freeze stdlib modules that are imported during startup. This provides
+significant performance improvements to startup. If necessary, use the
+previously added "-X frozen_modules=off" commandline option to force
+importing the source modules.
+
+..
+
+.. bpo: 45188
+.. date: 2021-09-14-00-47-57
+.. nonce: MNbo_T
+.. section: Build
+
+Windows builds now regenerate frozen modules as the first part of the build.
+Previously the regeneration was later in the build, which would require it
+to be restarted if any modules had changed.
+
+..
+
+.. bpo: 45163
+.. date: 2021-09-11-06-05-23
+.. nonce: q7xT93
+.. section: Build
+
+Fixes Haiku platform build.
+
+..
+
+.. bpo: 45067
+.. date: 2021-09-09-16-45-26
+.. nonce: mFmY92
+.. section: Build
+
+The ncurses function extended_color_content was introduced in 2017
+
+(https://invisible-island.net/ncurses/NEWS.html#index-t20170401). The
+
+ncurses-devel package in CentOS 7 had a older version ncurses resulted in
+compilation error. For compiling ncurses with extended color support, we
+verify the version of the ncurses library >= 20170401.
+
+..
+
+.. bpo: 45019
+.. date: 2021-08-26-13-10-46
+.. nonce: e0mo49
+.. section: Build
+
+Generate lines in relevant files for frozen modules. Up until now each of
+the files had to be edited manually. This change makes it easier to add to
+and modify the frozen modules.
+
+..
+
+.. bpo: 44340
+.. date: 2021-07-19-01-09-56
+.. nonce: JNeOf4
+.. section: Build
+
+Add support for building with clang thin lto via --with-lto=thin/full. Patch
+by Dong-hee Na and Brett Holman.
+
+..
+
+.. bpo: 44535
+.. date: 2021-06-30-02-32-46
+.. nonce: M9iN4-
+.. section: Build
+
+Enable building using a Visual Studio 2022 install on Windows.
+
+..
+
+.. bpo: 43298
+.. date: 2021-06-19-11-50-03
+.. nonce: 9ircMb
+.. section: Build
+
+Improved error message when building without a Windows SDK installed.
+
+..
+
+.. bpo: 44381
+.. date: 2021-06-10-18-08-44
+.. nonce: Xpc1iX
+.. section: Build
+
+The Windows build now accepts :envvar:`EnableControlFlowGuard` set to
+``guard`` to enable CFG.
+
+..
+
+.. bpo: 41282
+.. date: 2021-05-24-03-31-17
+.. nonce: L8nP44
+.. section: Build
+
+Fix broken ``make install`` that caused standard library extension modules
+to be unnecessarily and incorrectly rebuilt during the install phase of
+cpython.
+
+..
+
+.. bpo: 45375
+.. date: 2021-10-05-12-41-53
+.. nonce: CohPP-
+.. section: Windows
+
+Fixes an assertion failure due to searching for the standard library in
+unnormalised paths.
+
+..
+
+.. bpo: 45022
+.. date: 2021-09-03-18-05-21
+.. nonce: bgpD_r
+.. section: Windows
+
+Update Windows release to include libffi 3.4.2
+
+..
+
+.. bpo: 45007
+.. date: 2021-08-27-23-50-02
+.. nonce: NIBlVG
+.. section: Windows
+
+Update to OpenSSL 1.1.1l in Windows build
+
+..
+
+.. bpo: 44848
+.. date: 2021-08-06-10-11-07
+.. nonce: ib3Jcz
+.. section: Windows
+
+Upgrade Windows installer to use SQLite 3.36.0.
+
+..
+
+.. bpo: 44572
+.. date: 2021-07-13-15-32-49
+.. nonce: gXvhDc
+.. section: Windows
+
+Avoid consuming standard input in the :mod:`platform` module
+
+..
+
+.. bpo: 44582
+.. date: 2021-07-07-21-07-18
+.. nonce: 4Mm6Hh
+.. section: Windows
+
+Accelerate speed of :mod:`mimetypes` initialization using a native
+implementation of the registry scan.
+
+..
+
+.. bpo: 41299
+.. date: 2021-06-06-16-36-13
+.. nonce: Rg-vb_
+.. section: Windows
+
+Fix 16 milliseconds jitter when using timeouts in :mod:`threading`, such as
+with :meth:`threading.Lock.acquire` or :meth:`threading.Condition.wait`.
+
+..
+
+.. bpo: 42686
+.. date: 2021-01-01-21-21-03
+.. nonce: G_f-TC
+.. section: Windows
+
+Build :mod:`sqlite3` with math functions enabled. Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 40263
+.. date: 2020-04-13-15-20-28
+.. nonce: 1KKEbu
+.. section: Windows
+
+This is a follow-on bug from https://bugs.python.org/issue26903. Once that
+is applied we run into an off-by-one assertion problem. The assert was not
+correct.
+
+..
+
+.. bpo: 45007
+.. date: 2021-08-30-00-04-10
+.. nonce: pixqUB
+.. section: macOS
+
+Update macOS installer builds to use OpenSSL 1.1.1l.
+
+..
+
+.. bpo: 34602
+.. date: 2021-08-27-16-55-10
+.. nonce: ZjHsYJ
+.. section: macOS
+
+When building CPython on macOS with ``./configure
+--with-undefined-behavior-sanitizer --with-pydebug``, the stack size is now
+quadrupled to allow for the entire test suite to pass.
+
+..
+
+.. bpo: 44848
+.. date: 2021-08-06-10-08-41
+.. nonce: 0uYXsE
+.. section: macOS
+
+Update macOS installer to use SQLite 3.36.0.
+
+..
+
+.. bpo: 44689
+.. date: 2021-07-20-22-27-01
+.. nonce: mmT_xH
+.. section: macOS
+
+:meth:`ctypes.util.find_library` now works correctly on macOS 11 Big Sur
+even if Python is built on an older version of macOS. Previously, when
+built on older macOS systems, ``find_library`` was not able to find macOS
+system libraries when running on Big Sur due to changes in how system
+libraries are stored.
+
+..
+
+.. bpo: 41972
+.. date: 2021-07-12-15-42-02
+.. nonce: yUjE8j
+.. section: macOS
+
+The framework build's user header path in sysconfig is changed to add a
+'pythonX.Y' component to match distutils's behavior.
+
+..
+
+.. bpo: 43109
+.. date: 2021-05-24-21-15-41
+.. nonce: npKJ9c
+.. section: macOS
+
+Allow --with-lto configure option to work with Apple-supplied Xcode or
+Command Line Tools.
+
+..
+
+.. bpo: 34932
+.. date: 2021-03-29-21-11-23
+.. nonce: f3Hdyd
+.. section: macOS
+
+Add socket.TCP_KEEPALIVE support for macOS. Patch by Shane Harvey.
+
+..
+
+.. bpo: 45296
+.. date: 2021-09-27-01-21-59
+.. nonce: 9H8rdY
+.. section: IDLE
+
+On Windows, change exit/quit message to suggest Ctrl-D, which works, instead
+of <Ctrl-Z Return>, which does not work in IDLE.
+
+..
+
+.. bpo: 45193
+.. date: 2021-09-15-03-20-06
+.. nonce: G61_GV
+.. section: IDLE
+
+Make completion boxes appear on Ubuntu again.
+
+..
+
+.. bpo: 40128
+.. date: 2021-06-11-17-43-39
+.. nonce: 7vDN3U
+.. section: IDLE
+
+Mostly fix completions on macOS when not using tcl/tk 8.6.11 (as with 3.9).
+The added update_idletask call should be harmless and possibly helpful
+otherwise.
+
+..
+
+.. bpo: 33962
+.. date: 2021-06-10-00-50-02
+.. nonce: ikAUNg
+.. section: IDLE
+
+Move the indent space setting from the Font tab to the new Windows tab.
+Patch by Mark Roseman and Terry Jan Reedy.
+
+..
+
+.. bpo: 40468
+.. date: 2021-06-08-03-04-51
+.. nonce: tUCGUb
+.. section: IDLE
+
+Split the settings dialog General tab into Windows and Shell/ED tabs. Move
+help sources, which extend the Help menu, to the Extensions tab. Make space
+for new options and shorten the dialog. The latter makes the dialog better
+fit small screens.
+
+..
+
+.. bpo: 41611
+.. date: 2021-05-27-18-22-46
+.. nonce: jOKpfc
+.. section: IDLE
+
+Avoid uncaught exceptions in ``AutoCompleteWindow.winconfig_event()``.
+
+..
+
+.. bpo: 41611
+.. date: 2021-05-27-13-39-43
+.. nonce: liNQqj
+.. section: IDLE
+
+Fix IDLE sometimes freezing upon tab-completion on macOS.
+
+..
+
+.. bpo: 44010
+.. date: 2021-05-09-09-02-09
+.. nonce: TaLe9x
+.. section: IDLE
+
+Highlight the new :ref:`match <match>` statement's :ref:`soft keywords
+<soft-keywords>`: :keyword:`match`, :keyword:`case <match>`, and :keyword:`_
+<wildcard-patterns>`. However, this highlighting is not perfect and will be
+incorrect in some rare cases, including some ``_``-s in ``case`` patterns.
+
+..
+
+.. bpo: 44026
+.. date: 2021-05-05-09-45-24
+.. nonce: m2Z0zR
+.. section: IDLE
+
+Include interpreter's typo fix suggestions in message line for NameErrors
+and AttributeErrors. Patch by E. Paine.
+
+..
+
+.. bpo: 44786
+.. date: 2021-09-14-11-44-26
+.. nonce: DU0LC0
+.. section: Tools/Demos
+
+Fix a warning in regular expression in the c-analyzer script.
+
+..
+
+.. bpo: 44967
+.. date: 2021-08-26-11-57-31
+.. nonce: UT1RMV
+.. section: Tools/Demos
+
+pydoc now returns a non-zero status code when a module cannot be found.
+
+..
+
+.. bpo: 44978
+.. date: 2021-08-22-11-45-31
+.. nonce: QupKV3
+.. section: Tools/Demos
+
+Allow the Argument Clinic tool to handle ``__complex__`` special methods.
+
+..
+
+.. bpo: 43425
+.. date: 2021-07-01-22-21-25
+.. nonce: t65len
+.. section: Tools/Demos
+
+Removed the 'test2to3' demo project that demonstrated using lib2to3 to
+support Python 2.x and Python 3.x from a single source in a distutils
+package. Patch by Dong-hee Na
+
+..
+
+.. bpo: 44074
+.. date: 2021-05-08-13-57-00
+.. nonce: F09kCK
+.. section: Tools/Demos
+
+Make patchcheck automatically detect the correct base branch name
+(previously it was hardcoded to 'master')
+
+..
+
+.. bpo: 20291
+.. date: 2020-02-25-18-22-09
+.. nonce: AyrDiZ
+.. section: Tools/Demos
+
+Added support for variadic positional parameters in Argument Clinic.
+
+..
+
+.. bpo: 41710
+.. date: 2021-09-30-03-14-35
+.. nonce: DDWJKx
+.. section: C API
+
+The PyThread_acquire_lock_timed() function now clamps the timeout if it is
+too large, rather than aborting the process. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44687
+.. date: 2021-09-19-17-18-25
+.. nonce: 3fqDRC
+.. section: C API
+
+:meth:`BufferedReader.peek` no longer raises :exc:`ValueError` when the
+entire file has already been buffered.
+
+..
+
+.. bpo: 45116
+.. date: 2021-09-16-18-05-20
+.. nonce: WxXewl
+.. section: C API
+
+Add the :c:macro:`Py_ALWAYS_INLINE` macro to ask the compiler to always
+inline a static inline function. The compiler can ignore it and decides to
+not inline the function. Patch by Victor Stinner.
+
+..
+
+.. bpo: 45094
+.. date: 2021-09-03-15-53-43
+.. nonce: tinXwL
+.. section: C API
+
+Add the :c:macro:`Py_NO_INLINE` macro to disable inlining on a function.
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 45061
+.. date: 2021-08-31-15-21-36
+.. nonce: ZH0HVe
+.. section: C API
+
+Add a deallocator to the :class:`bool` type to detect refcount bugs in C
+extensions which call ``Py_DECREF(Py_True);`` or ``Py_DECREF(Py_False);`` by
+mistake. Patch by Victor Stinner.
+
+..
+
+.. bpo: 42035
+.. date: 2021-08-02-20-49-36
+.. nonce: HTBcZt
+.. section: C API
+
+Add a new :c:func:`PyType_GetQualName` function to get type's qualified
+name.
+
+..
+
+.. bpo: 41103
+.. date: 2021-07-29-16-04-28
+.. nonce: hiKKcF
+.. section: C API
+
+Reverts removal of the old buffer protocol because they are part of stable
+ABI.
+
+..
+
+.. bpo: 44751
+.. date: 2021-07-27-17-29-12
+.. nonce: 4qmbDG
+.. section: C API
+
+Remove ``crypt.h`` include from the public ``Python.h`` header.
+
+..
+
+.. bpo: 42747
+.. date: 2021-07-20-16-21-06
+.. nonce: rRxjUY
+.. section: C API
+
+The ``Py_TPFLAGS_HAVE_VERSION_TAG`` type flag now does nothing. The
+``Py_TPFLAGS_HAVE_AM_SEND`` flag (which was added in 3.10) is removed. Both
+were unnecessary because it is not possible to have type objects with the
+relevant fields missing.
+
+..
+
+.. bpo: 44530
+.. date: 2021-06-28-23-44-47
+.. nonce: qij7YC
+.. section: C API
+
+Added the ``co_qualname`` to the ``PyCodeObject`` structure to propagate the
+qualified name from the compiler to code objects.
+
+Patch by Gabriele N. Tornetta
+
+..
+
+.. bpo: 44441
+.. date: 2021-06-23-12-12-04
+.. nonce: 3p14JB
+.. section: C API
+
+:c:func:`Py_RunMain` now resets :c:data:`PyImport_Inittab` to its initial
+value at exit. It must be possible to call :c:func:`PyImport_AppendInittab`
+or :c:func:`PyImport_ExtendInittab` at each Python initialization. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 39947
+.. date: 2021-06-23-10-31-45
+.. nonce: je_HMo
+.. section: C API
+
+Remove 4 private trashcan C API functions which were only kept for the
+backward compatibility of the stable ABI with Python 3.8 and older, since
+the trashcan API was not usable with the limited C API on Python 3.8 and
+older. The trashcan API was excluded from the limited C API in Python 3.9.
+
+Removed functions:
+
+* _PyTrash_deposit_object()
+* _PyTrash_destroy_chain()
+* _PyTrash_thread_deposit_object()
+* _PyTrash_thread_destroy_chain()
+
+The trashcan C API was never usable with the limited C API, since old
+trashcan macros accessed directly :c:type:`PyThreadState` members like
+``_tstate->trash_delete_nesting``, whereas the :c:type:`PyThreadState`
+structure is opaque in the limited C API.
+
+Exclude also the ``PyTrash_UNWIND_LEVEL`` constant from the C API.
+
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 40939
+.. date: 2021-06-22-17-00-06
+.. nonce: CGB0I5
+.. section: C API
+
+Removed documentation for the removed ``PyParser_*`` C API.
+
+..
+
+.. bpo: 43795
+.. date: 2021-06-15-16-28-18
+.. nonce: fy0AXK
+.. section: C API
+
+The list in :ref:`stable-abi-list` now shows the public name
+:c:struct:`PyFrameObject` rather than ``_frame``. The non-existing entry
+``_node`` no longer appears in the list.
+
+..
+
+.. bpo: 44378
+.. date: 2021-06-10-15-22-31
+.. nonce: jGYakF
+.. section: C API
+
+:c:func:`Py_IS_TYPE` no longer uses :c:func:`Py_TYPE` to avoid a compiler
+warning: no longer cast ``const PyObject*`` to ``PyObject*``. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 39573
+.. date: 2021-06-03-00-59-48
+.. nonce: -elHTJ
+.. section: C API
+
+Convert the :c:func:`Py_TYPE` and :c:func:`Py_SIZE` macros to static inline
+functions. The :c:func:`Py_SET_TYPE` and :c:func:`Py_SET_SIZE` functions
+must now be used to set an object type and size. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44263
+.. date: 2021-05-31-11-31-13
+.. nonce: 8mIOfV
+.. section: C API
+
+The :c:func:`PyType_Ready` function now raises an error if a type is defined
+with the :const:`Py_TPFLAGS_HAVE_GC` flag set but has no traverse function
+(:c:member:`PyTypeObject.tp_traverse`). Patch by Victor Stinner.
+
+..
+
+.. bpo: 43795
+.. date: 2021-05-19-15-09-47
+.. nonce: WAHRxt
+.. section: C API
+
+The undocumented function :c:func:`Py_FrozenMain` is removed from the
+Limited API.
+
+..
+
+.. bpo: 44113
+.. date: 2021-05-12-12-24-45
+.. nonce: DcgOqE
+.. section: C API
+
+Deprecate the following functions to configure the Python initialization:
+
+* :c:func:`PySys_AddWarnOptionUnicode`
+* :c:func:`PySys_AddWarnOption`
+* :c:func:`PySys_AddXOption`
+* :c:func:`PySys_HasWarnOptions`
+* :c:func:`Py_SetPath`
+* :c:func:`Py_SetProgramName`
+* :c:func:`Py_SetPythonHome`
+* :c:func:`Py_SetStandardStreamEncoding`
+* :c:func:`_Py_SetProgramFullPath`
+
+Use the new :c:type:`PyConfig` API of the :ref:`Python Initialization
+Configuration <init-config>` instead (:pep:`587`).
+
+..
+
+.. bpo: 44094
+.. date: 2021-05-10-14-34-22
+.. nonce: HayXZO
+.. section: C API
+
+Remove ``PyErr_SetFromErrnoWithUnicodeFilename()``,
+``PyErr_SetFromWindowsErrWithUnicodeFilename()``, and
+``PyErr_SetExcFromWindowsErrWithUnicodeFilename()``. They are not documented
+and have been deprecated since Python 3.3.
+
+..
+
+.. bpo: 43795
+.. date: 2021-05-05-19-04-50
+.. nonce: 9Ojj73
+.. section: C API
+
+:c:func:`PyCodec_Unregister` is now properly exported as a function in the
+Windows Stable ABI DLL.
+
+..
+
+.. bpo: 44029
+.. date: 2021-05-04-17-43-39
+.. nonce: ayX4PR
+.. section: C API
+
+Remove deprecated ``Py_UNICODE`` APIs: ``PyUnicode_Encode``,
+``PyUnicode_EncodeUTF7``, ``PyUnicode_EncodeUTF8``,
+``PyUnicode_EncodeUTF16``, ``PyUnicode_EncodeUTF32``,
+``PyUnicode_EncodeLatin1``, ``PyUnicode_EncodeMBCS``,
+``PyUnicode_EncodeDecimal``, ``PyUnicode_EncodeRawUnicodeEscape``,
+``PyUnicode_EncodeCharmap``, ``PyUnicode_EncodeUnicodeEscape``,
+``PyUnicode_TransformDecimalToASCII``, ``PyUnicode_TranslateCharmap``,
+``PyUnicodeEncodeError_Create``, ``PyUnicodeTranslateError_Create``. See
+:pep:`393` and :pep:`624` for reference.
+
+..
+
+.. bpo: 42035
+.. date: 2020-12-23-01-28-50
+.. nonce: S9eUm0
+.. section: C API
+
+Add a new :c:func:`PyType_GetName` function to get type's short name.
--- /dev/null
+.. bpo: 45716
+.. date: 2021-11-04-20-19-07
+.. nonce: 5C0pA1
+.. release date: 2021-11-05
+.. section: Core and Builtins
+
+Improve the :exc:`SyntaxError` message when using ``True``, ``None`` or
+``False`` as keywords in a function call. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 45688
+.. date: 2021-11-02-09-27-46
+.. nonce: v5Der1
+.. section: Core and Builtins
+
+:data:`sys.stdlib_module_names` now contains the macOS-specific module
+:mod:`_scproxy`.
+
+..
+
+.. bpo: 45379
+.. date: 2021-10-23-13-49-00
+.. nonce: ZF7G3n
+.. section: Core and Builtins
+
+Clarify :exc:`ImportError` message when we try to explicitly import a frozen
+module but frozen modules are disabled.
+
+..
+
+.. bpo: 44525
+.. date: 2021-10-20-11-57-31
+.. nonce: veL4lJ
+.. section: Core and Builtins
+
+Specialize simple calls to Python functions (no starargs, keyowrd dict, or
+closure)
+
+..
+
+.. bpo: 45530
+.. date: 2021-10-20-01-28-26
+.. nonce: 5r7n4m
+.. section: Core and Builtins
+
+Cases of sorting using tuples as keys may now be significantly faster in
+some cases. Patch by Tim Peters.
+
+The order of the result may differ from earlier releases if the tuple
+elements don't define a total ordering (see
+:ref:`expressions-value-comparisons` for information on total ordering).
+It's generally true that the result of sorting simply isn't well-defined in
+the absence of a total ordering on list elements.
+
+..
+
+.. bpo: 45526
+.. date: 2021-10-19-10-29-47
+.. nonce: WQnvW9
+.. section: Core and Builtins
+
+In obmalloc, set ADDRESS_BITS to not ignore any bits (ignored 16 before).
+That is safer in the case that the kernel gives user-space virtual addresses
+that span a range greater than 48 bits.
+
+..
+
+.. bpo: 30570
+.. date: 2021-10-19-01-04-08
+.. nonce: _G30Ms
+.. section: Core and Builtins
+
+Fixed a crash in ``issubclass()`` from infinite recursion when searching
+pathological ``__bases__`` tuples.
+
+..
+
+.. bpo: 45521
+.. date: 2021-10-18-22-40-33
+.. nonce: GdMiuW
+.. section: Core and Builtins
+
+Fix a bug in the obmalloc radix tree code. On 64-bit machines, the bug
+causes the tree to hold 46-bits of virtual addresses, rather than the
+intended 48-bits.
+
+..
+
+.. bpo: 45494
+.. date: 2021-10-16-17-27-48
+.. nonce: vMt1g4
+.. section: Core and Builtins
+
+Fix parser crash when reporting errors involving invalid continuation
+characters. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 45445
+.. date: 2021-10-12-14-41-39
+.. nonce: _F5cMf
+.. section: Core and Builtins
+
+Python now fails to initialize if it finds an invalid :option:`-X` option in
+the command line. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 45340
+.. date: 2021-10-08-09-47-38
+.. nonce: ukHgDb
+.. section: Core and Builtins
+
+Object attributes are held in an array instead of a dictionary. An object's
+dictionary are created lazily, only when needed. Reduces the memory
+consumption of a typical Python object by about 30%. Patch by Mark Shannon.
+
+..
+
+.. bpo: 45408
+.. date: 2021-10-07-21-26-44
+.. nonce: qUqzcd
+.. section: Core and Builtins
+
+Fix a crash in the parser when reporting tokenizer errors that occur at the
+same time unclosed parentheses are detected. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 29410
+.. date: 2021-10-07-19-09-12
+.. nonce: bg5SYp
+.. section: Core and Builtins
+
+Add SipHash13 for string hash algorithm and use it by default.
+
+..
+
+.. bpo: 45385
+.. date: 2021-10-06-21-20-11
+.. nonce: CTUT8s
+.. section: Core and Builtins
+
+Fix reference leak from descr_check. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 45367
+.. date: 2021-10-05-03-49-07
+.. nonce: _astoU
+.. section: Core and Builtins
+
+Specialized the ``BINARY_MULTIPLY`` opcode to ``BINARY_MULTIPLY_INT`` and
+``BINARY_MULTIPLY_FLOAT`` using the PEP 659 machinery.
+
+..
+
+.. bpo: 21736
+.. date: 2021-10-01-09-21-02
+.. nonce: RI47BU
+.. section: Core and Builtins
+
+Frozen stdlib modules now have ``__file__`` to the .py file they would
+otherwise be loaded from, if possible. For packages, ``__path__`` now has
+the correct entry instead of being an empty list, which allows unfrozen
+submodules to be imported. These are set only if the stdlib directory is
+known when the runtime is initialized. Note that the file at ``__file__``
+is not guaranteed to exist. None of this affects non-stdlib frozen modules
+nor, for now, frozen modules imported using
+``PyImport_ImportFrozenModule()``. Also, at the moment ``co_filename`` is
+not updated for the module.
+
+..
+
+.. bpo: 45020
+.. date: 2021-10-01-09-06-54
+.. nonce: Cj5VQN
+.. section: Core and Builtins
+
+For frozen stdlib modules, record the original module name as
+``module.__spec__.loader_state.origname``. If the value is different than
+``module.__spec__.name`` then the module was defined as an alias in
+Tools/scripts/freeze_modules.py. If it is ``None`` then the module comes
+from a source file outside the stdlib.
+
+..
+
+.. bpo: 45324
+.. date: 2021-09-29-12-02-39
+.. nonce: BTQElX
+.. section: Core and Builtins
+
+In FrozenImporter.find_spec(), we now preserve the information needed in
+exec_module() to load the module. This change mostly impacts internal
+details, rather than changing the importer's behavior.
+
+..
+
+.. bpo: 45292
+.. date: 2021-09-26-18-18-50
+.. nonce: aX5HVr
+.. section: Core and Builtins
+
+Implement :pep:`654`. Add :class:`ExceptionGroup` and
+:class:`BaseExceptionGroup`. Update traceback display code.
+
+..
+
+.. bpo: 40116
+.. date: 2021-09-23-14-00-05
+.. nonce: KaoeFs
+.. section: Core and Builtins
+
+Change to the implementation of split dictionaries. Classes where the
+instances differ either in the exact set of attributes, or in the order in
+which those attributes are set, can still share keys. This should have no
+observable effect on users of Python or the C-API. Patch by Mark Shannon.
+
+..
+
+.. bpo: 44050
+.. date: 2021-09-08-00-30-09
+.. nonce: mFI15u
+.. section: Core and Builtins
+
+Extensions that indicate they use global state (by setting ``m_size`` to -1)
+can again be used in multiple interpreters. This reverts to behavior of
+Python 3.8.
+
+..
+
+.. bpo: 44525
+.. date: 2021-06-28-22-23-59
+.. nonce: sSvUKG
+.. section: Core and Builtins
+
+Setup initial specialization infrastructure for the ``CALL_FUNCTION``
+opcode. Implemented initial specializations for C function calls:
+
+* ``CALL_FUNCTION_BUILTIN_O`` for ``METH_O`` flag.
+
+* ``CALL_FUNCTION_BUILTIN_FAST`` for ``METH_FASTCALL`` flag without keywords.
+
+* ``CALL_FUNCTION_LEN`` for ``len(o)``.
+
+* ``CALL_FUNCTION_ISINSTANCE`` for ``isinstance(o, t)``.
+
+..
+
+.. bpo: 44511
+.. date: 2021-06-26-16-55-08
+.. nonce: k8sMvV
+.. section: Core and Builtins
+
+Improve the generated bytecode for class and mapping patterns.
+
+..
+
+.. bpo: 43706
+.. date: 2021-04-03-02-44-15
+.. nonce: jjsXlT
+.. section: Core and Builtins
+
+Speed up calls to ``enumerate()`` by using the :pep:`590` ``vectorcall``
+calling convention. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 45679
+.. date: 2021-10-30-21-11-37
+.. nonce: Dq8Cpu
+.. section: Library
+
+Fix caching of multi-value :data:`typing.Literal`. ``Literal[True, 2]`` is
+no longer equal to ``Literal[1, 2]``.
+
+..
+
+.. bpo: 42064
+.. date: 2021-10-27-13-28-52
+.. nonce: UK4jgV
+.. section: Library
+
+Convert :mod:`sqlite3` to multi-phase initialisation (PEP 489). Patches by
+Erlend E. Aasland.
+
+..
+
+.. bpo: 45438
+.. date: 2021-10-27-10-05-39
+.. nonce: Xz5lGU
+.. section: Library
+
+Fix typing.Signature string representation for generic builtin types.
+
+..
+
+.. bpo: 45613
+.. date: 2021-10-26-14-29-54
+.. nonce: 55Ie3c
+.. section: Library
+
+:mod:`sqlite3` now sets :attr:`sqlite3.threadsafety` based on the default
+threading mode the underlying SQLite library has been compiled with. Patch
+by Erlend E. Aasland.
+
+..
+
+.. bpo: 45574
+.. date: 2021-10-22-23-06-33
+.. nonce: svqA84
+.. section: Library
+
+Fix warning about ``print_escape`` being unused.
+
+..
+
+.. bpo: 45581
+.. date: 2021-10-22-21-57-02
+.. nonce: rlH6ay
+.. section: Library
+
+:meth:`sqlite3.connect` now correctly raises :exc:`MemoryError` if the
+underlying SQLite API signals memory error. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 45557
+.. date: 2021-10-21-16-18-51
+.. nonce: 4MQt4r
+.. section: Library
+
+pprint.pprint() now handles underscore_numbers correctly. Previously it was
+always setting it to False.
+
+..
+
+.. bpo: 44019
+.. date: 2021-10-21-10-14-22
+.. nonce: Xk4Ncr
+.. section: Library
+
+Add :func:`operator.call` to ``operator.__all__``. Patch by Kreusada.
+
+..
+
+.. bpo: 42174
+.. date: 2021-10-19-01-30-57
+.. nonce: O2w9bi
+.. section: Library
+
+:meth:`shutil.get_terminal_size` now falls back to sane values if the column
+or line count are 0.
+
+..
+
+.. bpo: 35673
+.. date: 2021-10-18-18-12-47
+.. nonce: KOkHWe
+.. section: Library
+
+Improve the introspectability of the ``__loader__`` attribute for namespace
+packages. :class:`importlib.machinery.NamespaceLoader` is now public, and
+implements the :class:`importlib.abc.InspectLoader` interface.
+``_NamespaceLoader`` is kept for backward compatibility.
+
+..
+
+.. bpo: 45515
+.. date: 2021-10-18-14-52-48
+.. nonce: aXdvm_
+.. section: Library
+
+Add references to :mod:`zoneinfo` in the :mod:`datetime` documentation,
+mostly replacing outdated references to ``dateutil.tz``. Change by Paul
+Ganssle.
+
+..
+
+.. bpo: 45475
+.. date: 2021-10-18-10-46-47
+.. nonce: sb9KDF
+.. section: Library
+
+Reverted optimization of iterating :class:`gzip.GzipFile`,
+:class:`bz2.BZ2File`, and :class:`lzma.LZMAFile` (see bpo-43787) because it
+caused regression when user iterate them without having reference of them.
+Patch by Inada Naoki.
+
+..
+
+.. bpo: 45489
+.. date: 2021-10-16-23-46-39
+.. nonce: QB0rhG
+.. section: Library
+
+Update :class:`~typing.ForwardRef` to support ``|`` operator. Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 42222
+.. date: 2021-10-15-11-30-11
+.. nonce: hdHyac
+.. section: Library
+
+Removed deprecated support for float arguments in *randrange()*.
+
+..
+
+.. bpo: 45428
+.. date: 2021-10-14-18-04-17
+.. nonce: mM2War
+.. section: Library
+
+Fix a regression in py_compile when reading filenames from standard input.
+
+..
+
+.. bpo: 45467
+.. date: 2021-10-14-13-31-19
+.. nonce: Q7Ma6A
+.. section: Library
+
+Fix incremental decoder and stream reader in the "raw-unicode-escape" codec.
+Previously they failed if the escape sequence was split.
+
+..
+
+.. bpo: 45461
+.. date: 2021-10-14-00-19-02
+.. nonce: 4LB_tJ
+.. section: Library
+
+Fix incremental decoder and stream reader in the "unicode-escape" codec.
+Previously they failed if the escape sequence was split.
+
+..
+
+.. bpo: 45239
+.. date: 2021-10-13-17-52-48
+.. nonce: 7li1_0
+.. section: Library
+
+Fixed :func:`email.utils.parsedate_tz` crashing with
+:exc:`UnboundLocalError` on certain invalid input instead of returning
+``None``. Patch by Ben Hoyt.
+
+..
+
+.. bpo: 45417
+.. date: 2021-10-12-20-35-06
+.. nonce: gQM-O7
+.. section: Library
+
+Fix quadratic behaviour in the enum module: Creation of enum classes with a
+lot of entries was quadratic.
+
+..
+
+.. bpo: 45249
+.. date: 2021-10-10-16-14-33
+.. nonce: xqLliz
+.. section: Library
+
+Fix the behaviour of :func:`traceback.print_exc` when displaying the caret
+when the ``end_offset`` in the exception is set to 0. Patch by Pablo Galindo
+
+..
+
+.. bpo: 45416
+.. date: 2021-10-10-09-42-34
+.. nonce: n35O0_
+.. section: Library
+
+Fix use of :class:`asyncio.Condition` with explicit :class:`asyncio.Lock`
+objects, which was a regression due to removal of explicit loop arguments.
+Patch by Joongi Kim.
+
+..
+
+.. bpo: 20028
+.. date: 2021-10-10-00-25-36
+.. nonce: bPx4Z8
+.. section: Library
+
+Empty escapechar/quotechar is not allowed when initializing
+:class:`csv.Dialect`. Patch by Vajrasky Kok and Dong-hee Na.
+
+..
+
+.. bpo: 44904
+.. date: 2021-10-09-18-42-27
+.. nonce: RlW5h8
+.. section: Library
+
+Fix bug in the :mod:`doctest` module that caused it to fail if a docstring
+included an example with a ``classmethod`` ``property``. Patch by Alex
+Waygood.
+
+..
+
+.. bpo: 45406
+.. date: 2021-10-08-19-24-48
+.. nonce: Qh_Mz4
+.. section: Library
+
+Make :func:`inspect.getmodule` catch ``FileNotFoundError`` raised by
+:'func:`inspect.getabsfile`, and return ``None`` to indicate that the module
+could not be determined.
+
+..
+
+.. bpo: 45411
+.. date: 2021-10-08-11-29-29
+.. nonce: 4jR--U
+.. section: Library
+
+Add extensions for files containing subtitles - .srt & .vtt - to the
+mimetypes.py module.
+
+..
+
+.. bpo: 10716
+.. date: 2021-10-08-04-11-55
+.. nonce: QSRVK2
+.. section: Library
+
+Migrated pydoc to HTML5 (without changing the look of it). Side effect is to
+update xmlrpc's ``ServerHTMLDoc`` which now uses the CSS too. cgitb now
+relies less on pydoc (as it can't use the CSS file).
+
+..
+
+.. bpo: 27580
+.. date: 2021-10-07-21-11-48
+.. nonce: tGcBTH
+.. section: Library
+
+Add support of null characters in :mod:`csv`.
+
+..
+
+.. bpo: 45262
+.. date: 2021-10-07-14-04-10
+.. nonce: HqF71Z
+.. section: Library
+
+Prevent use-after-free in asyncio. Make sure the cached running loop holder
+gets cleared on dealloc to prevent use-after-free in get_running_loop
+
+..
+
+.. bpo: 45386
+.. date: 2021-10-07-00-05-05
+.. nonce: q9ORpA
+.. section: Library
+
+Make :mod:`xmlrpc.client` more robust to C runtimes where the underlying C
+``strftime`` function results in a ``ValueError`` when testing for year
+formatting options.
+
+..
+
+.. bpo: 20028
+.. date: 2021-10-03-21-14-37
+.. nonce: zBA4RK
+.. section: Library
+
+Improve error message of :class:`csv.Dialect` when initializing. Patch by
+Vajrasky Kok and Dong-hee Na.
+
+..
+
+.. bpo: 45343
+.. date: 2021-10-01-23-07-02
+.. nonce: ixmctD
+.. section: Library
+
+Update bundled pip to 21.2.4 and setuptools to 58.1.0
+
+..
+
+.. bpo: 45328
+.. date: 2021-09-30-08-22-44
+.. nonce: 8Z-Q0B
+.. section: Library
+
+Fixed :class:`http.client.HTTPConnection` to work properly in OSs that don't
+support the ``TCP_NODELAY`` socket option.
+
+..
+
+.. bpo: 45243
+.. date: 2021-09-20-01-25-09
+.. nonce: 0pJf0U
+.. section: Library
+
+Add :meth:`~sqlite3.Connection.setlimit` and
+:meth:`~sqlite3.Connection.getlimit` to :class:`sqlite3.Connection` for
+setting and getting SQLite limits by connection basis. Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 45320
+.. date: 2021-09-15-10-21-10
+.. nonce: 4qaf5x
+.. section: Library
+
+Removed from the :mod:`inspect` module:
+
+* the ``getargspec`` function, deprecated since Python 3.0;
+ use :func:`inspect.signature` or :func:`inspect.getfullargspec` instead.
+
+* the ``formatargspec`` function, deprecated since Python 3.5;
+ use the :func:`inspect.signature` function and :class:`Signature` object
+ directly.
+
+* the undocumented ``Signature.from_callable`` and ``Signature.from_function``
+ functions, deprecated since Python 3.5; use the
+ :meth:`Signature.from_callable() <inspect.Signature.from_callable>` method
+ instead.
+
+Patch by Hugo van Kemenade.
+
+..
+
+.. bpo: 45192
+.. date: 2021-09-14-15-52-47
+.. nonce: DjA-BI
+.. section: Library
+
+Fix the ``tempfile._infer_return_type`` function so that the ``dir``
+argument of the :mod:`tempfile` functions accepts an object implementing the
+``os.PathLike`` protocol.
+
+Patch by Kyungmin Lee.
+
+..
+
+.. bpo: 45160
+.. date: 2021-09-11-14-47-05
+.. nonce: VzMXbW
+.. section: Library
+
+When tracing a tkinter variable used by a ttk OptionMenu, callbacks are no
+longer made twice.
+
+..
+
+.. bpo: 25625
+.. date: 2021-09-10-12-53-28
+.. nonce: SzcBCw
+.. section: Library
+
+Added non parallel-safe :func:`~contextlib.chdir` context manager to change
+the current working directory and then restore it on exit. Simple wrapper
+around :func:`~os.chdir`.
+
+..
+
+.. bpo: 24139
+.. date: 2021-08-30-23-10-48
+.. nonce: e38czf
+.. section: Library
+
+Add support for SQLite extended result codes in :exc:`sqlite3.Error`. Patch
+by Erlend E. Aasland.
+
+..
+
+.. bpo: 24444
+.. date: 2021-08-30-00-19-23
+.. nonce: Ki4bgz
+.. section: Library
+
+Fixed an error raised in :mod:`argparse` help display when help for an
+option is set to 1+ blank spaces or when *choices* arg is an empty
+container.
+
+..
+
+.. bpo: 44547
+.. date: 2021-08-20-10-52-40
+.. nonce: eu0iJq
+.. section: Library
+
+Implement ``Fraction.__int__``, so that a :class:`fractions.Fraction`
+instance ``f`` passes an ``isinstance(f, typing.SupportsInt)`` check.
+
+..
+
+.. bpo: 40321
+.. date: 2021-07-22-21-25-56
+.. nonce: gBlFmw
+.. section: Library
+
+Adds support for HTTP 308 redirects to :mod:`urllib`. See :rfc:`7538` for
+details. Patch by Jochem Schulenklopper.
+
+..
+
+.. bpo: 41374
+.. date: 2020-07-27-19-21-05
+.. nonce: cd-kFL
+.. section: Library
+
+Ensure that ``socket.TCP_*`` constants are exposed on Cygwin 3.1.6 and
+greater.
+
+..
+
+.. bpo: 35970
+.. date: 2019-02-11-19-06-10
+.. nonce: ZRvh51
+.. section: Library
+
+Add help flag to the base64 module's command line interface. Patch
+contributed by Robert Kuska.
+
+..
+
+.. bpo: 45726
+.. date: 2021-11-05-12-15-24
+.. nonce: GwRr7e
+.. section: Documentation
+
+Improve documentation for :func:`functools.singledispatch` and
+:class:`functools.singledispatchmethod`.
+
+..
+
+.. bpo: 45680
+.. date: 2021-11-03-14-51-03
+.. nonce: 9_NTFU
+.. section: Documentation
+
+Amend the docs on ``GenericAlias`` objects to clarify that non-container
+classes can also implement ``__class_getitem__``. Patch contributed by Alex
+Waygood.
+
+..
+
+.. bpo: 45618
+.. date: 2021-10-31-20-35-06
+.. nonce: RTcNXF
+.. section: Documentation
+
+Update Sphinx version used to build the documentation to 4.2.0. Patch by
+Maciej Olko.
+
+..
+
+.. bpo: 45655
+.. date: 2021-10-28-19-22-55
+.. nonce: aPYGaS
+.. section: Documentation
+
+Add a new "relevant PEPs" section to the top of the documentation for the
+``typing`` module. Patch by Alex Waygood.
+
+..
+
+.. bpo: 45604
+.. date: 2021-10-26-10-00-45
+.. nonce: Dm-YhV
+.. section: Documentation
+
+Add ``level`` argument to ``multiprocessing.log_to_stderr`` function docs.
+
+..
+
+.. bpo: 45516
+.. date: 2021-10-22-21-57-42
+.. nonce: 7_RMEX
+.. section: Documentation
+
+Add protocol description to the :class:`importlib.abc.TraversableResources`
+documentation.
+
+..
+
+.. bpo: 45464
+.. date: 2021-10-20-16-26-53
+.. nonce: mOISBs
+.. section: Documentation
+
+Mention in the documentation of :ref:`Built-in Exceptions
+<bltin-exceptions>` that inheriting from multiple exception types in a
+single subclass is not recommended due to possible memory layout
+incompatibility.
+
+..
+
+.. bpo: 45449
+.. date: 2021-10-19-01-41-40
+.. nonce: fjHZJc
+.. section: Documentation
+
+Add note about :pep:`585` in :mod:`collections.abc`.
+
+..
+
+.. bpo: 45516
+.. date: 2021-10-18-20-12-18
+.. nonce: EJh4K8
+.. section: Documentation
+
+Add protocol description to the :class:`importlib.abc.Traversable`
+documentation.
+
+..
+
+.. bpo: 20692
+.. date: 2021-10-13-00-42-54
+.. nonce: K5rGtP
+.. section: Documentation
+
+Add Programming FAQ entry explaining that int literal attribute access
+requires either a space after or parentheses around the literal.
+
+..
+
+.. bpo: 45678
+.. date: 2021-11-04-20-03-32
+.. nonce: 1xNMjN
+.. section: Tests
+
+Add tests for scenarios in which :class:`functools.singledispatchmethod` is
+stacked on top of a method that has already been wrapped by two other
+decorators. Patch by Alex Waygood.
+
+..
+
+.. bpo: 45578
+.. date: 2021-10-30-19-00-25
+.. nonce: bvu6X2
+.. section: Tests
+
+Add tests for :func:`dis.distb`
+
+..
+
+.. bpo: 45678
+.. date: 2021-10-30-13-12-20
+.. nonce: bKrYeS
+.. section: Tests
+
+Add tests to ensure that ``functools.singledispatchmethod`` correctly wraps
+the attributes of the target function.
+
+..
+
+.. bpo: 45668
+.. date: 2021-10-29-17-18-56
+.. nonce: MfAw4i
+.. section: Tests
+
+PGO tests now pass when Python is built without test extension modules.
+
+..
+
+.. bpo: 45577
+.. date: 2021-10-22-19-44-13
+.. nonce: dSaNvK
+.. section: Tests
+
+Add subtests for all ``pickle`` protocols in ``test_zoneinfo``.
+
+..
+
+.. bpo: 45566
+.. date: 2021-10-22-12-05-21
+.. nonce: 2gQ3ZB
+.. section: Tests
+
+Fix ``test_frozen_pickle`` in ``test_dataclasses`` to check all ``pickle``
+versions.
+
+..
+
+.. bpo: 43592
+.. date: 2021-10-21-17-22-26
+.. nonce: kHRsra
+.. section: Tests
+
+:mod:`test.libregrtest` now raises the soft resource limit for the maximum
+number of file descriptors when the default is too low for our test suite as
+was often the case on macOS.
+
+..
+
+.. bpo: 39679
+.. date: 2021-10-18-16-18-41
+.. nonce: F18qcE
+.. section: Tests
+
+Add more test cases for `@functools.singledispatchmethod` when combined with
+`@classmethod` or `@staticmethod`.
+
+..
+
+.. bpo: 45410
+.. date: 2021-10-08-14-03-20
+.. nonce: Ex9xe2
+.. section: Tests
+
+When libregrtest spawns a worker process, stderr is now written into stdout
+to keep messages order. Use a single pipe for stdout and stderr, rather than
+two pipes. Previously, messages were out of order which made analysis of
+buildbot logs harder Patch by Victor Stinner.
+
+..
+
+.. bpo: 45402
+.. date: 2021-10-07-13-43-01
+.. nonce: jlQvep
+.. section: Tests
+
+Fix test_tools.test_sundry() when Python is built out of tree: fix how the
+freeze_modules.py tool locates the _freeze_module program. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 45403
+.. date: 2021-10-07-13-27-12
+.. nonce: 7QiDvw
+.. section: Tests
+
+Fix test_sys.test_stdlib_dir() when Python is built outside the source tree:
+compare normalized paths. Patch by Victor Stinner.
+
+..
+
+.. bpo: 45400
+.. date: 2021-10-07-13-11-45
+.. nonce: h3iT7V
+.. section: Tests
+
+Fix test_name_error_suggestions_do_not_trigger_for_too_many_locals() of
+test_exceptions if a directory name contains "a1" (like "Python-3.11.0a1"):
+use a stricter regular expression. Patch by Victor Stinner.
+
+..
+
+.. bpo: 10572
+.. date: 2021-01-07-01-25-38
+.. nonce: gEEZ9z
+.. section: Tests
+
+Rename :mod:`sqlite3` tests from ``test_sqlite`` to ``test_sqlite3``, and
+relocate them to ``Lib/test/test_sqlite3``. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 43158
+.. date: 2021-11-01-12-51-46
+.. nonce: fghS6w
+.. section: Build
+
+``setup.py`` now uses values from configure script to build the ``_uuid``
+extension module. Configure now detects util-linux's ``libuuid``, too.
+
+..
+
+.. bpo: 45666
+.. date: 2021-10-29-12-54-53
+.. nonce: w2G63u
+.. section: Build
+
+Fix warning of ``swprintf`` and ``%s`` usage in ``_testembed.c``
+
+..
+
+.. bpo: 45548
+.. date: 2021-10-28-14-47-22
+.. nonce: mdCBxB
+.. section: Build
+
+``Modules/Setup`` and ``Modules/makesetup`` have been improved. The
+``Setup`` file now contains working rules for all extensions. Outdated
+comments have been removed. Rules defined by ``makesetup`` track
+dependencies correctly.
+
+..
+
+.. bpo: 45548
+.. date: 2021-10-24-21-49-49
+.. nonce: UWx0UC
+.. section: Build
+
+The :mod:`math` and :mod:`cmath` implementation now require a C99 compatible
+``libm`` and no longer ship with workarounds for missing acosh, asinh,
+atanh, expm1, and log1p functions.
+
+..
+
+.. bpo: 45595
+.. date: 2021-10-24-11-02-43
+.. nonce: WI_5YU
+.. section: Build
+
+``setup.py`` and ``makesetup`` now track build dependencies on all Python
+header files and module specific header files.
+
+..
+
+.. bpo: 45571
+.. date: 2021-10-22-15-28-29
+.. nonce: yY8NsJ
+.. section: Build
+
+``Modules/Setup`` now use ``PY_CFLAGS_NODIST`` instead of ``PY_CFLAGS`` to
+compile shared modules.
+
+..
+
+.. bpo: 45570
+.. date: 2021-10-22-14-45-40
+.. nonce: 61gM2A
+.. section: Build
+
+:mod:`pyexpat` and :mod:`_elementtree` no longer define obsolete macros
+``HAVE_EXPAT_CONFIG_H`` and ``USE_PYEXPAT_CAPI``. ``XML_POOR_ENTROPY`` is
+now defined in ``expat_config.h``.
+
+..
+
+.. bpo: 43974
+.. date: 2021-10-22-14-00-44
+.. nonce: HHZtbx
+.. section: Build
+
+``setup.py`` no longer defines ``Py_BUILD_CORE_MODULE``. Instead every
+module, that uses the internal API, defines the macro.
+
+..
+
+.. bpo: 45548
+.. date: 2021-10-20-17-02-56
+.. nonce: BoggEf
+.. section: Build
+
+Fill in missing entries in Modules/Setup.
+
+..
+
+.. bpo: 45532
+.. date: 2021-10-20-16-07-39
+.. nonce: kyhvis
+.. section: Build
+
+Update :data:`sys.version` to use ``main`` as fallback information. Patch by
+Jeong YunWon.
+
+..
+
+.. bpo: 45536
+.. date: 2021-10-20-12-42-39
+.. nonce: oQNYHB
+.. section: Build
+
+The ``configure`` script now checks whether OpenSSL headers and libraries
+provide required APIs. Most common APIs are verified. The check detects
+outdated or missing OpenSSL. Failures do not stop configure.
+
+..
+
+.. bpo: 45221
+.. date: 2021-10-18-10-25-56
+.. nonce: rnulhf
+.. section: Build
+
+Fixed regression in handling of ``LDFLAGS`` and ``CPPFLAGS`` options where
+:meth:`argparse.parse_known_args` could interpret an option as one of the
+built-in command line argument, for example ``-h`` for help.
+
+..
+
+.. bpo: 45440
+.. date: 2021-10-12-02-13-08
+.. nonce: -zYgDb
+.. section: Build
+
+Building Python now requires a C99 ``<math.h>`` header file providing the
+following functions: ``copysign()``, ``hypot()``, ``isfinite()``,
+``isinf()``, ``isnan()``, ``round()``. Patch by Victor Stinner.
+
+..
+
+.. bpo: 45405
+.. date: 2021-10-11-16-27-38
+.. nonce: iSfdW5
+.. section: Build
+
+Prevent ``internal configure error`` when running ``configure`` with recent
+versions of non-Apple clang. Patch by David Bohman.
+
+..
+
+.. bpo: 45433
+.. date: 2021-10-11-16-08-37
+.. nonce: pVDkMV
+.. section: Build
+
+Avoid linking libpython with libcrypt.
+
+..
+
+.. bpo: 43652
+.. date: 2021-11-04-00-41-50
+.. nonce: RnqV7I
+.. section: Windows
+
+Update Tcl/Tk to 8.6.11, actually this time. The previous update incorrectly
+included 8.6.10.
+
+..
+
+.. bpo: 45337
+.. date: 2021-09-30-23-17-27
+.. nonce: qg7U_h
+.. section: Windows
+
+venv now warns when the created environment may need to be accessed at a
+different path, due to redirections, links or junctions. It also now
+correctly installs or upgrades components when the alternate path is
+required.
+
+..
+
+.. bpo: 43851
+.. date: 2021-04-15-01-23-10
+.. nonce: qgU0gy
+.. section: Windows
+
+Build SQLite ``SQLITE_OMIT_AUTOINIT`` on Windows. Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 44828
+.. date: 2021-10-25-02-02-21
+.. nonce: XBdXlJ
+.. section: macOS
+
+Avoid tkinter file dialog failure on macOS 12 Monterey when using the Tk
+8.6.11 provided by python.org macOS installers. Patch by Marc Culler of the
+Tk project.
+
+..
+
+.. bpo: 45495
+.. date: 2021-10-16-17-20-32
+.. nonce: ST8RFt
+.. section: IDLE
+
+Add context keywords 'case' and 'match' to completions list.
+
+..
+
+.. bpo: 29103
+.. date: 2021-10-20-18-41-17
+.. nonce: CMRLyq
+.. section: C API
+
+:c:func:`PyType_FromSpec* <PyType_FromModuleAndSpec>` now copies the class
+name from the spec to a buffer owned by the class, so the original can be
+safely deallocated. Patch by Petr Viktorin.
+
+..
+
+.. bpo: 45522
+.. date: 2021-10-19-13-07-46
+.. nonce: kGAwmZ
+.. section: C API
+
+The internal freelists for frame, float, list, dict, async generators, and
+context objects can now be disabled.
+
+..
+
+.. bpo: 35134
+.. date: 2021-10-19-00-20-40
+.. nonce: Z0Zk_m
+.. section: C API
+
+Exclude :c:func:`PyWeakref_GET_OBJECT` from the limited C API. It never
+worked since the :c:type:`PyWeakReference` structure is opaque in the
+limited C API.
+
+..
+
+.. bpo: 35081
+.. date: 2021-10-15-09-29-59
+.. nonce: 2teFD3
+.. section: C API
+
+Move the ``interpreteridobject.h`` header file from ``Include/`` to
+``Include/internal/``. It only provides private functions. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 35134
+.. date: 2021-10-15-00-11-51
+.. nonce: eX4zqy
+.. section: C API
+
+The non-limited API files ``cellobject.h``, ``classobject.h``,
+``context.h``, ``funcobject.h``, ``genobject.h`` and ``longintrepr.h`` have
+been moved to the ``Include/cpython`` directory. Moreover, the ``eval.h``
+header file was removed. These files must not be included directly, as they
+are already included in ``Python.h``: :ref:`Include Files <api-includes>`.
+If they have been included directly, consider including ``Python.h``
+instead. Patch by Victor Stinner.
+
+..
+
+.. bpo: 45474
+.. date: 2021-10-14-22-16-56
+.. nonce: 1OkJQh
+.. section: C API
+
+The following items are no longer available when ``Py_LIMITED_API`` is
+defined:
+
+* :c:func:`PyMarshal_WriteLongToFile`
+* :c:func:`PyMarshal_WriteObjectToFile`
+* :c:func:`PyMarshal_ReadObjectFromString`
+* :c:func:`PyMarshal_WriteObjectToString`
+* the ``Py_MARSHAL_VERSION`` macro
+
+These are not part of the :ref:`limited API <stable-abi-list>`.
+
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 45434
+.. date: 2021-10-13-14-42-46
+.. nonce: INNEEt
+.. section: C API
+
+Remove the ``pystrhex.h`` header file. It only contains private functions. C
+extensions should only include the main ``<Python.h>`` header file. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 45440
+.. date: 2021-10-12-02-13-41
+.. nonce: Gf94rE
+.. section: C API
+
+Remove the ``Py_FORCE_DOUBLE()`` macro. It was used by the
+``Py_IS_INFINITY()`` macro. Patch by Victor Stinner.
+
+..
+
+.. bpo: 45434
+.. date: 2021-10-11-23-03-49
+.. nonce: tsS8I_
+.. section: C API
+
+``<Python.h>`` no longer includes the header files ``<stdlib.h>``,
+``<stdio.h>``, ``<errno.h>`` and ``<string.h>`` when the ``Py_LIMITED_API``
+macro is set to ``0x030b0000`` (Python 3.11) or higher. C extensions should
+explicitly include the header files after ``#include <Python.h>``. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 41123
+.. date: 2021-10-11-22-58-33
+.. nonce: myrlIp
+.. section: C API
+
+Remove ``Py_UNICODE_COPY()`` and ``Py_UNICODE_FILL()`` macros, deprecated
+since Python 3.3. Use ``PyUnicode_CopyCharacters()`` or ``memcpy()``
+(``wchar_t*`` string), and ``PyUnicode_Fill()`` functions instead. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 45412
+.. date: 2021-10-08-15-54-07
+.. nonce: KHyJCT
+.. section: C API
+
+Remove the following math macros using the ``errno`` variable:
+
+* ``Py_ADJUST_ERANGE1()``
+* ``Py_ADJUST_ERANGE2()``
+* ``Py_OVERFLOWED()``
+* ``Py_SET_ERANGE_IF_OVERFLOW()``
+* ``Py_SET_ERRNO_ON_MATH_ERROR()``
+
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 45395
+.. date: 2021-10-06-15-54-40
+.. nonce: yVhdAl
+.. section: C API
+
+Custom frozen modules (the array set to ``PyImport_FrozenModules``) are now
+treated as additions, rather than replacing all the default frozen modules.
+Frozen stdlib modules can still be disabled by setting the "code" field of
+the custom array entry to NULL.
+
+..
+
+.. bpo: 43760
+.. date: 2021-09-24-11-12-21
+.. nonce: Bfxd1-
+.. section: C API
+
+Add new :c:func:`PyThreadState_EnterTracing`, and
+:c:func:`PyThreadState_LeaveTracing` functions to the limited C API to
+suspend and resume tracing and profiling. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44220
+.. date: 2021-05-24-22-12-40
+.. nonce: H9CUGl
+.. section: C API
+
+:c:var:`PyStructSequence_UnnamedField` is added to the Stable ABI.
--- /dev/null
+.. bpo: 46009
+.. date: 2021-12-08-11-06-53
+.. nonce: cL8pH0
+.. release date: 2021-12-08
+.. section: Core and Builtins
+
+Restore behavior from 3.9 and earlier when sending non-None to newly started
+generator. In 3.9 this did not affect the state of the generator. In 3.10.0
+and 3.10.1 ``gen_func().send(0)`` is equivalent to
+``gen_func().throw(TypeError(...)`` which exhausts the generator. In 3.10.2
+onward, the behavior has been reverted to that of 3.9.
+
+..
+
+.. bpo: 46004
+.. date: 2021-12-07-11-24-24
+.. nonce: TTEU1p
+.. section: Core and Builtins
+
+Fix the :exc:`SyntaxError` location for errors involving for loops with
+invalid targets. Patch by Pablo Galindo
+
+..
+
+.. bpo: 45711
+.. date: 2021-12-05-17-36-08
+.. nonce: 3TmTSw
+.. section: Core and Builtins
+
+:c:func:`_PyErr_ChainStackItem` no longer normalizes ``exc_info`` (including
+setting the traceback on the exception instance) because ``exc_info`` is
+always normalized.
+
+..
+
+.. bpo: 45607
+.. date: 2021-12-01-15-38-04
+.. nonce: JhuF8b
+.. section: Core and Builtins
+
+The ``__note__`` field was added to :exc:`BaseException`. It is ``None`` by
+default but can be set to a string which is added to the exception's
+traceback.
+
+..
+
+.. bpo: 45947
+.. date: 2021-12-01-14-06-36
+.. nonce: 1XPPm_
+.. section: Core and Builtins
+
+Place pointers to dict and values immediately before GC header. This reduces
+number of dependent memory loads to access either dict or values from 3 to
+1.
+
+..
+
+.. bpo: 45915
+.. date: 2021-11-28-11-25-08
+.. nonce: TSGcLF
+.. section: Core and Builtins
+
+``is_valid_fd`` now uses faster ``fcntl(fd, F_GETFD)`` on Linux, macOS, and
+Windows.
+
+..
+
+.. bpo: 44530
+.. date: 2021-11-26-23-26-25
+.. nonce: EZ0gel
+.. section: Core and Builtins
+
+Reverts a change to the ``code.__new__`` :ref:`audit event <audit-events>`
+from an earlier prerelease.
+
+..
+
+.. bpo: 42268
+.. date: 2021-11-26-22-31-22
+.. nonce: 3wl-09
+.. section: Core and Builtins
+
+Fail the configure step if the selected compiler doesn't support memory
+sanitizer. Patch by Pablo Galindo
+
+..
+
+.. bpo: 45711
+.. date: 2021-11-25-17-51-29
+.. nonce: D2igmz
+.. section: Core and Builtins
+
+The three values of ``exc_info`` are now always consistent with each other.
+In particular, the ``type`` and ``traceback`` fields are now derived from
+the exception instance. This impacts the return values of
+:func:`sys.exc_info` and :c:func:`PyErr_GetExcInfo()` if the exception
+instance is modified while the exception is handled, as well as
+:c:func:`PyErr_SetExcInfo()`, which now ignores the ``type`` and
+``traceback`` arguments provided to it.
+
+..
+
+.. bpo: 45727
+.. date: 2021-11-24-18-24-49
+.. nonce: _xVbbo
+.. section: Core and Builtins
+
+Refine the custom syntax error that suggests that a comma may be missing to
+trigger only when the expressions are detected between parentheses or
+brackets. Patch by Pablo Galindo
+
+..
+
+.. bpo: 45885
+.. date: 2021-11-23-21-01-56
+.. nonce: 3IxeCX
+.. section: Core and Builtins
+
+Specialized the ``COMPARE_OP`` opcode using the PEP 659 machinery.
+
+..
+
+.. bpo: 45786
+.. date: 2021-11-23-15-25-00
+.. nonce: UdEciD
+.. section: Core and Builtins
+
+Allocate space for the interpreter frame in the frame object, to avoid an
+additional allocation when the frame object outlives the frame activation.
+
+..
+
+.. bpo: 45614
+.. date: 2021-11-23-12-06-41
+.. nonce: fIekgI
+.. section: Core and Builtins
+
+Fix :mod:`traceback` display for exceptions with invalid module name.
+
+..
+
+.. bpo: 45813
+.. date: 2021-11-22-11-28-13
+.. nonce: ZMaWE2
+.. section: Core and Builtins
+
+Fix crash when calling coro.cr_frame.clear() after coroutine has been freed.
+
+..
+
+.. bpo: 45811
+.. date: 2021-11-20-02-25-06
+.. nonce: B-1Gsr
+.. section: Core and Builtins
+
+Improve the tokenizer errors when encountering invisible control characters
+in the parser. Patch by Pablo Galindo
+
+..
+
+.. bpo: 45848
+.. date: 2021-11-19-22-57-42
+.. nonce: HgVBJ5
+.. section: Core and Builtins
+
+Allow the parser to obtain error lines directly from encoded files. Patch by
+Pablo Galindo
+
+..
+
+.. bpo: 45709
+.. date: 2021-11-19-13-17-47
+.. nonce: H_t7ut
+.. section: Core and Builtins
+
+Restore behavior from 3.10 when tracing an exception raised within a with
+statement.
+
+..
+
+.. bpo: 44525
+.. date: 2021-11-18-10-02-02
+.. nonce: M4xwn_
+.. section: Core and Builtins
+
+Adds new :opcode:`COPY_FREE_VARS` opcode, to make copying of free variables
+from function to frame explicit. Helps optimization of calls to Python
+function.
+
+..
+
+.. bpo: 45829
+.. date: 2021-11-17-10-14-35
+.. nonce: 5Cf6fY
+.. section: Core and Builtins
+
+Specialize :opcode:`BINARY_SUBSCR` for classes with a ``__getitem__`` method
+implemented in Python
+
+..
+
+.. bpo: 45826
+.. date: 2021-11-17-08-05-27
+.. nonce: OERoTm
+.. section: Core and Builtins
+
+Fixed a crash when calling ``.with_traceback(None)`` on ``NameError``. This
+occurs internally in ``unittest.TestCase.assertRaises()``.
+
+..
+
+.. bpo: 45822
+.. date: 2021-11-16-19-41-04
+.. nonce: OT6ueS
+.. section: Core and Builtins
+
+Fixed a bug in the parser that was causing it to not respect :pep:`263`
+coding cookies when no flags are provided. Patch by Pablo Galindo
+
+..
+
+.. bpo: 45820
+.. date: 2021-11-16-19-00-27
+.. nonce: 2X6Psr
+.. section: Core and Builtins
+
+Fix a segfault when the parser fails without reading any input. Patch by
+Pablo Galindo
+
+..
+
+.. bpo: 45636
+.. date: 2021-11-15-13-32-54
+.. nonce: RDlTdL
+.. section: Core and Builtins
+
+Simplify the implementation of :opcode:`BINARY_OP` by indexing into an array
+of function pointers (rather than switching on the oparg).
+
+..
+
+.. bpo: 42540
+.. date: 2021-11-15-12-08-27
+.. nonce: V2w107
+.. section: Core and Builtins
+
+Fix crash when :func:`os.fork` is called with an active non-default memory
+allocator.
+
+..
+
+.. bpo: 45738
+.. date: 2021-11-14-00-14-45
+.. nonce: e0cgKd
+.. section: Core and Builtins
+
+Fix computation of error location for invalid continuation characters in the
+parser. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 45636
+.. date: 2021-11-11-19-11-57
+.. nonce: 2fyIVm
+.. section: Core and Builtins
+
+Remove an existing "fast path" for old-style string formatting, since it no
+longer appears to have any measurable impact.
+
+..
+
+.. bpo: 45753
+.. date: 2021-11-11-17-14-21
+.. nonce: nEBFcC
+.. section: Core and Builtins
+
+Make recursion checks a bit more efficient by tracking amount of calls left
+before overflow.
+
+..
+
+.. bpo: 45773
+.. date: 2021-11-09-13-01-35
+.. nonce: POU8A4
+.. section: Core and Builtins
+
+Fix a compiler hang when attempting to optimize certain jump patterns.
+
+..
+
+.. bpo: 45764
+.. date: 2021-11-09-12-19-22
+.. nonce: 8RLhWL
+.. section: Core and Builtins
+
+The parser now gives a better error message when leaving out the opening
+parenthesis ``(`` after a ``def``-statement::
+
+ >>> def f:
+ File "<stdin>", line 1
+ def f:
+ ^
+ SyntaxError: expected '('
+
+..
+
+.. bpo: 45609
+.. date: 2021-10-27-21-00-49
+.. nonce: L1GKPX
+.. section: Core and Builtins
+
+Specialized the ``STORE_SUBSCR`` opcode using the PEP 659 machinery.
+
+..
+
+.. bpo: 45636
+.. date: 2021-10-27-15-14-31
+.. nonce: K2X7QS
+.. section: Core and Builtins
+
+Replace all numeric ``BINARY_*`` and ``INPLACE_*`` instructions with a
+single :opcode:`BINARY_OP` implementation.
+
+..
+
+.. bpo: 45582
+.. date: 2021-10-23-00-39-31
+.. nonce: YONPuo
+.. section: Core and Builtins
+
+Path calculation (known as ``getpath``) has been reimplemented as a frozen
+Python module. This should have no visible impact, but may affect
+calculation of all paths referenced in :mod:`sys` and :mod:`sysconfig`.
+
+..
+
+.. bpo: 45450
+.. date: 2021-10-12-18-22-44
+.. nonce: d9a-bX
+.. section: Core and Builtins
+
+Improve the syntax error message for parenthesized arguments. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 27946
+.. date: 2021-12-04-20-08-42
+.. nonce: -Vuarf
+.. section: Library
+
+Fix possible crash when getting an attribute of
+class:`xml.etree.ElementTree.Element` simultaneously with replacing the
+``attrib`` dict.
+
+..
+
+.. bpo: 45711
+.. date: 2021-12-02-17-22-06
+.. nonce: D6jsdv
+.. section: Library
+
+Make :mod:`asyncio` normalize exceptions as soon as they are captured with
+:c:func:`PyErr_Fetch`, and before they are stored as an exc_info triplet.
+This brings :mod:`asyncio` in line with the rest of the codebase, where an
+exc_info triplet is always normalized.
+
+..
+
+.. bpo: 23819
+.. date: 2021-12-02-14-37-30
+.. nonce: An6vkT
+.. section: Library
+
+Replaced asserts with exceptions in asyncio, patch by Kumar Aditya.
+
+..
+
+.. bpo: 13236
+.. date: 2021-11-30-13-52-02
+.. nonce: FmJIkO
+.. section: Library
+
+:class:`unittest.TextTestResult` and :class:`unittest.TextTestRunner` flush
+now the output stream more often.
+
+..
+
+.. bpo: 45917
+.. date: 2021-11-28-17-24-11
+.. nonce: J5TIrd
+.. section: Library
+
+Added :func:`math.exp2`:, which returns 2 raised to the power of x.
+
+..
+
+.. bpo: 37658
+.. date: 2021-11-28-15-30-34
+.. nonce: 8Hno7d
+.. section: Library
+
+Fix issue when on certain conditions ``asyncio.wait_for()`` may allow a
+coroutine to complete successfully, but fail to return the result,
+potentially causing memory leaks or other issues.
+
+..
+
+.. bpo: 45876
+.. date: 2021-11-23-15-36-56
+.. nonce: NO8Yaj
+.. section: Library
+
+Improve the accuracy of stdev() and pstdev() in the statistics module. When
+the inputs are floats or fractions, the output is a correctly rounded float
+
+..
+
+.. bpo: 44649
+.. date: 2021-11-21-20-50-42
+.. nonce: E8M936
+.. section: Library
+
+Handle dataclass(slots=True) with a field that has default a default value,
+but for which init=False.
+
+..
+
+.. bpo: 45803
+.. date: 2021-11-20-17-04-25
+.. nonce: wSgFOy
+.. section: Library
+
+Added missing kw_only parameter to dataclasses.make_dataclass().
+
+..
+
+.. bpo: 45837
+.. date: 2021-11-18-13-13-19
+.. nonce: aGyr1I
+.. section: Library
+
+The :meth:`turtle.RawTurtle.settiltangle` is deprecated since Python 3.1, it
+now emits a deprecation warning and will be removed in Python 3.13.
+
+Use :meth:`turtle.RawTurtle.tiltangle` instead.
+
+:meth:`turtle.RawTurtle.tiltangle` was earlier incorrectly marked as
+deprecated, its docstring has been corrected.
+
+Patch by Hugo van Kemenade.
+
+..
+
+.. bpo: 45831
+.. date: 2021-11-17-19-25-37
+.. nonce: 9-TojK
+.. section: Library
+
+:mod:`faulthandler` can now write ASCII-only strings (like filenames and
+function names) with a single write() syscall when dumping a traceback. It
+reduces the risk of getting an unreadable dump when two threads or two
+processes dump a traceback to the same file (like stderr) at the same time.
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 45828
+.. date: 2021-11-17-11-40-21
+.. nonce: kQU35U
+.. section: Library
+
+:mod:`sqlite` C callbacks now use unraisable exceptions if callback
+tracebacks are enabled. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 41735
+.. date: 2021-11-16-18-13-49
+.. nonce: D72UY1
+.. section: Library
+
+Fix thread lock in ``zlib.Decompress.flush()`` method before
+``PyObject_GetBuffer``.
+
+..
+
+.. bpo: 45235
+.. date: 2021-11-11-13-03-17
+.. nonce: 8ZbkHa
+.. section: Library
+
+Reverted an argparse bugfix that caused regression in the handling of
+default arguments for subparsers. This prevented leaf level arguments from
+taking precedence over root level arguments.
+
+..
+
+.. bpo: 45754
+.. date: 2021-11-09-15-48-38
+.. nonce: c-JDto
+.. section: Library
+
+Fix a regression in Python 3.11a1 and 3.11a2 where :mod:`sqlite3`
+incorrectly would use ``SQLITE_LIMIT_LENGTH`` when checking SQL statement
+lengths. Now, ``SQLITE_LIMIT_SQL_LENGTH`` is used. Patch by Erlend E.
+Aasland.
+
+..
+
+.. bpo: 45766
+.. date: 2021-11-09-09-18-06
+.. nonce: dvbcMf
+.. section: Library
+
+Added *proportional* option to :meth:`statistics.linear_regression`.
+
+..
+
+.. bpo: 45765
+.. date: 2021-11-09-09-04-19
+.. nonce: JVobxK
+.. section: Library
+
+In importlib.metadata, fix distribution discovery for an empty path.
+
+..
+
+.. bpo: 45757
+.. date: 2021-11-08-23-22-14
+.. nonce: MHZHt3
+.. section: Library
+
+Fix bug where :mod:`dis` produced an incorrect oparg when
+:opcode:`EXTENDED_ARG` is followed by an opcode that does not use its
+argument.
+
+..
+
+.. bpo: 45644
+.. date: 2021-11-06-17-47-46
+.. nonce: ZMqHD_
+.. section: Library
+
+In-place JSON file formatting using ``python3 -m json.tool infile infile``
+now works correctly, previously it left the file empty. Patch by Chris
+Wesseling.
+
+..
+
+.. bpo: 45703
+.. date: 2021-11-03-13-41-49
+.. nonce: 35AagL
+.. section: Library
+
+When a namespace package is imported before another module from the same
+namespace is created/installed in a different :data:`sys.path` location
+while the program is running, calling the
+:func:`importlib.invalidate_caches` function will now also guarantee the new
+module is noticed.
+
+..
+
+.. bpo: 45535
+.. date: 2021-10-29-16-28-06
+.. nonce: n8NiOE
+.. section: Library
+
+Improve output of ``dir()`` with Enums.
+
+..
+
+.. bpo: 45664
+.. date: 2021-10-28-23-40-54
+.. nonce: 7dqtxQ
+.. section: Library
+
+Fix :func:`types.resolve_bases` and :func:`types.new_class` for
+:class:`types.GenericAlias` instance as a base.
+
+..
+
+.. bpo: 45663
+.. date: 2021-10-28-23-11-59
+.. nonce: J90N5R
+.. section: Library
+
+Fix :func:`dataclasses.is_dataclass` for dataclasses which are subclasses of
+:class:`types.GenericAlias`.
+
+..
+
+.. bpo: 45662
+.. date: 2021-10-28-22-58-14
+.. nonce: sJd7Ir
+.. section: Library
+
+Fix the repr of :data:`dataclasses.InitVar` with a type alias to the
+built-in class, e.g. ``InitVar[list[int]]``.
+
+..
+
+.. bpo: 43137
+.. date: 2021-10-25-12-51-02
+.. nonce: apo7jY
+.. section: Library
+
+Launch GNOME web browsers via gio tool instead of obsolete gvfs-open
+
+..
+
+.. bpo: 45429
+.. date: 2021-10-25-01-22-49
+.. nonce: VaEyN9
+.. section: Library
+
+On Windows, :func:`time.sleep` now uses a waitable timer which supports
+high-resolution timers. Patch by Dong-hee Na and Eryk Sun.
+
+..
+
+.. bpo: 37295
+.. date: 2021-10-18-16-08-55
+.. nonce: wBEWH2
+.. section: Library
+
+Optimize :func:`math.comb` and :func:`math.perm`.
+
+..
+
+.. bpo: 45514
+.. date: 2021-10-18-14-25-35
+.. nonce: YmlzIl
+.. section: Library
+
+Deprecated legacy functions in :mod:`importlib.resources`.
+
+..
+
+.. bpo: 45507
+.. date: 2021-10-18-14-00-01
+.. nonce: lDotNV
+.. section: Library
+
+Add tests for truncated/missing trailers in gzip.decompress implementation.
+
+..
+
+.. bpo: 45359
+.. date: 2021-10-03-22-27-35
+.. nonce: LX_uxe
+.. section: Library
+
+Implement :pep:`585` for :class:`graphlib.TopologicalSorter`.
+
+..
+
+.. bpo: 44733
+.. date: 2021-07-26-13-33-37
+.. nonce: 88LrP1
+.. section: Library
+
+Add ``max_tasks_per_child`` to
+:class:`concurrent.futures.ProcessPoolExecutor`. This allows users to
+specify the maximum number of tasks a single process should execute before
+the process needs to be restarted.
+
+..
+
+.. bpo: 28806
+.. date: 2021-05-24-13-48-34
+.. nonce: PkNw5D
+.. section: Library
+
+Improve netrc library. netrc file no longer needs to contain all tokens. And
+if the login name is anonymous, security check is no longer need.
+
+..
+
+.. bpo: 43498
+.. date: 2021-04-20-14-14-16
+.. nonce: L_Hq-8
+.. section: Library
+
+Avoid a possible *"RuntimeError: dictionary changed size during iteration"*
+when adjusting the process count of :class:`ProcessPoolExecutor`.
+
+..
+
+.. bpo: 42158
+.. date: 2020-11-10-17-46-12
+.. nonce: OhxAiH
+.. section: Library
+
+Add MIME types for N-quads, N-triples, Notation3 and TriG to ``mimetypes``.
+
+..
+
+.. bpo: 30533
+.. date: 2020-06-16-18-00-56
+.. nonce: StL57t
+.. section: Library
+
+Add :func:`inspect.getmembers_static` , it return all members without
+triggering dynamic lookup via the descriptor protocol. Patch by Weipeng
+Hong.
+
+..
+
+.. bpo: 42238
+.. date: 2021-11-20-02-46-39
+.. nonce: hlfMIc
+.. section: Documentation
+
+``make -C Doc suspicious`` will be removed soon in favor of ``make -C Doc
+check``, mark it as deprecated.
+
+..
+
+.. bpo: 45840
+.. date: 2021-11-19-02-02-32
+.. nonce: A51B2S
+.. section: Documentation
+
+Improve cross-references in the documentation for the data model.
+
+..
+
+.. bpo: 45640
+.. date: 2021-11-18-16-44-12
+.. nonce: lSpc2A
+.. section: Documentation
+
+Properly marked-up grammar tokens in the documentation are now clickable and
+take you to the definition of a given piece of grammar. Patch by Arthur
+Milchior.
+
+..
+
+.. bpo: 45788
+.. date: 2021-11-18-00-07-40
+.. nonce: qibUoB
+.. section: Documentation
+
+Link doc for sys.prefix to sysconfig doc on installation paths.
+
+..
+
+.. bpo: 45772
+.. date: 2021-11-09-13-10-55
+.. nonce: EdrM3t
+.. section: Documentation
+
+``socket.socket`` documentation is corrected to a class from a function.
+
+..
+
+.. bpo: 45392
+.. date: 2021-11-06-10-54-17
+.. nonce: JZnVOz
+.. section: Documentation
+
+Update the docstring of the :class:`type` built-in to remove a redundant
+line and to mention keyword arguments for the constructor.
+
+..
+
+.. bpo: 45250
+.. date: 2021-10-22-12-09-18
+.. nonce: Iit5-Y
+.. section: Documentation
+
+Update the documentation to note that CPython does not consistently require
+iterators to define ``__iter__``.
+
+..
+
+.. bpo: 25381
+.. date: 2021-06-21-17-51-51
+.. nonce: 7Kn-_H
+.. section: Documentation
+
+In the extending chapter of the extending doc, update a paragraph about the
+global variables containing exception information.
+
+..
+
+.. bpo: 43905
+.. date: 2021-05-24-05-00-12
+.. nonce: tBIndE
+.. section: Documentation
+
+Expanded :func:`~dataclasses.astuple` and :func:`~dataclasses.asdict` docs,
+warning about deepcopy being applied and providing a workaround.
+
+..
+
+.. bpo: 45695
+.. date: 2021-12-03-14-19-16
+.. nonce: QKBn2E
+.. section: Tests
+
+Out-of-tree builds with a read-only source directory are now tested by CI.
+
+..
+
+.. bpo: 19460
+.. date: 2021-11-28-15-25-02
+.. nonce: lr0aWs
+.. section: Tests
+
+Add new Test for ``Lib/email/mime/nonmultipart.py::MIMENonMultipart``.
+
+..
+
+.. bpo: 45835
+.. date: 2021-11-17-14-28-08
+.. nonce: Mgyhjx
+.. section: Tests
+
+Fix race condition in test_queue tests with multiple "feeder" threads.
+
+..
+
+.. bpo: 45783
+.. date: 2021-11-11-13-56-00
+.. nonce: 8k1Rng
+.. section: Tests
+
+The test for the freeze tool now handles file moves and deletions.
+
+..
+
+.. bpo: 45745
+.. date: 2021-11-10-12-01-28
+.. nonce: wX5B3K
+.. section: Tests
+
+Remove the ``--findleaks`` command line option of regrtest: use the
+``--fail-env-changed`` option instead. Since Python 3.7, it was a deprecated
+alias to the ``--fail-env-changed`` option.
+
+..
+
+.. bpo: 45701
+.. date: 2021-10-31-10-58-45
+.. nonce: r0LAUL
+.. section: Tests
+
+Add tests with ``tuple`` type with :func:`functools.lru_cache` to
+``test_functools``.
+
+..
+
+.. bpo: 44035
+.. date: 2021-12-06-09-31-27
+.. nonce: BiO4XC
+.. section: Build
+
+CI now verifies that autoconf files have been regenerated with a current and
+unpatched autoconf package.
+
+..
+
+.. bpo: 45950
+.. date: 2021-12-01-17-28-39
+.. nonce: eEVLoz
+.. section: Build
+
+The build system now uses a :program:`_bootstrap_python` interpreter for
+freezing and deepfreezing again. To speed up build process the build tools
+:program:`_bootstrap_python` and :program:`_freeze_module` are no longer
+build with LTO.
+
+..
+
+.. bpo: 45881
+.. date: 2021-11-29-16-32-55
+.. nonce: 7597J6
+.. section: Build
+
+The :program:`configure` script now accepts ``--with-build-python`` and
+``--with-freeze-module`` options to make cross compiling easier.
+
+..
+
+.. bpo: 40280
+.. date: 2021-11-29-14-37-29
+.. nonce: UlTMR8
+.. section: Build
+
+Emscripten platform now uses ``.wasm`` suffix by default.
+
+..
+
+.. bpo: 40280
+.. date: 2021-11-29-11-24-45
+.. nonce: Knx7d7
+.. section: Build
+
+Disable unusable core extension modules on WASM/Emscripten targets.
+
+..
+
+.. bpo: 40280
+.. date: 2021-11-26-14-09-04
+.. nonce: ZLpwQf
+.. section: Build
+
+``configure`` now checks for socket ``shutdown`` function. The check makes
+it possible to disable ``SYS_shutdown`` with ``ac_cv_func_shutdown=no`` in
+CONFIG_SITE.
+
+..
+
+.. bpo: 40280
+.. date: 2021-11-26-09-10-19
+.. nonce: xmiMJl
+.. section: Build
+
+``configure`` now checks for functions ``fork1, getegid, geteuid, getgid,
+getppid, getuid, opendir, pipe, system, wait, ttyname``.
+
+..
+
+.. bpo: 33393
+.. date: 2021-11-25-20-26-06
+.. nonce: 24YNtM
+.. section: Build
+
+Update ``config.guess`` to 2021-06-03 and ``config.sub`` to 2021-08-14.
+``Makefile`` now has an ``update-config`` target to make updating more
+convenient.
+
+..
+
+.. bpo: 45866
+.. date: 2021-11-25-13-53-36
+.. nonce: ZH1W8N
+.. section: Build
+
+``make regen-all`` now produces the same output when run from a directory
+other than the source tree: when building Python out of the source tree.
+pegen now strips directory of the "generated by pygen from <FILENAME>"
+header Patch by Victor Stinner.
+
+..
+
+.. bpo: 40280
+.. date: 2021-11-25-10-55-03
+.. nonce: E9-gsQ
+.. section: Build
+
+``configure`` now accepts machine ``wasm32`` or ``wasm64`` and OS ``wasi``
+or ``emscripten`` for cross building, e.g. ``wasm32-unknown-emscripten``,
+``wasm32-wasi``, or ``wasm32-unknown-wasi``.
+
+..
+
+.. bpo: 41498
+.. date: 2021-11-25-09-15-04
+.. nonce: qAk5eo
+.. section: Build
+
+Python now compiles on platforms without ``sigset_t``. Several functions in
+:mod:`signal` are not available when ``sigset_t`` is missing.
+
+Based on patch by Roman Yurchak for pyodide.
+
+..
+
+.. bpo: 45881
+.. date: 2021-11-24-17-14-06
+.. nonce: GTXXLk
+.. section: Build
+
+``setup.py`` now uses ``CC`` from environment first to discover multiarch
+and cross compile paths.
+
+..
+
+.. bpo: 45886
+.. date: 2021-11-23-23-37-49
+.. nonce: _Ulnh-
+.. section: Build
+
+The ``_freeze_module`` program path can now be overridden on the command
+line, e.g. ``make FREEZE_MODULE=../x86_64/Program/_freeze_module``.
+
+..
+
+.. bpo: 45873
+.. date: 2021-11-23-04-28-40
+.. nonce: 9dldZ4
+.. section: Build
+
+Get rid of the ``_bootstrap_python`` build step. The deepfreeze.py script is
+now run using ``$(PYTHON_FOR_REGEN)`` which can be Python 3.7 or newer (on
+Windows, 3.8 or newer).
+
+..
+
+.. bpo: 45847
+.. date: 2021-11-19-17-57-57
+.. nonce: 9phcpd
+.. section: Build
+
+Port builtin hashlib extensions to ``PY_STDLIB_MOD`` macro and ``addext()``.
+
+..
+
+.. bpo: 45723
+.. date: 2021-11-19-15-42-27
+.. nonce: vwIJWI
+.. section: Build
+
+Add ``autoconf`` helpers for saving and restoring environment variables:
+
+* ``SAVE_ENV``: Save ``$CFLAGS``, ``$LDFLAGS``, ``$LIBS``, and
+ ``$CPPFLAGS``.
+* ``RESTORE_ENV``: Restore ``$CFLAGS``, ``$LDFLAGS``, ``$LIBS``, and
+ ``$CPPFLAGS``.
+* ``WITH_SAVE_ENV([SCRIPT])``: Run ``SCRIPT`` wrapped with ``SAVE_ENV`` and
+ ``RESTORE_ENV``.
+
+Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 45573
+.. date: 2021-11-18-13-31-02
+.. nonce: LCjGB8
+.. section: Build
+
+Mandatory core modules, that are required to bootstrap Python, are now in
+``Modules/Setup.bootstrap``.
+
+..
+
+.. bpo: 45573
+.. date: 2021-11-18-12-18-43
+.. nonce: xsMZzn
+.. section: Build
+
+``configure`` now creates ``Modules/Setup.stdlib`` with conditionally
+enabled/disabled extension module lines. The file is not used, yet.
+
+..
+
+.. bpo: 45573
+.. date: 2021-11-17-19-02-51
+.. nonce: GMNdun
+.. section: Build
+
+``configure`` now uses a unified format to set state, compiler flags, and
+linker flags in Makefile. The new macro ``PY_STDLIB_MOD`` sets three
+variables that are consumed by ``Modules/Setup`` and ``setup.py``.
+
+..
+
+.. bpo: 45816
+.. date: 2021-11-16-14-44-06
+.. nonce: nbdmVK
+.. section: Build
+
+Python now supports building with Visual Studio 2022 (MSVC v143, VS Version
+17.0). Patch by Jeremiah Vivian.
+
+..
+
+.. bpo: 45800
+.. date: 2021-11-13-16-40-05
+.. nonce: 5Hz6nr
+.. section: Build
+
+Settings for :mod:`pyexpat` C extension are now detected by ``configure``.
+The bundled ``expat`` library is built in ``Makefile``.
+
+..
+
+.. bpo: 45798
+.. date: 2021-11-13-10-18-22
+.. nonce: IraaTs
+.. section: Build
+
+Settings for :mod:`decimal` internal C extension are now detected by
+``configure``. The bundled ``libmpdec`` library is built in ``Makefile``.
+
+..
+
+.. bpo: 45723
+.. date: 2021-11-10-16-13-02
+.. nonce: B5gCB1
+.. section: Build
+
+:program:`configure` has a new option ``--with-pkg-config`` to disable or
+require pkg-config.
+
+..
+
+.. bpo: 45774
+.. date: 2021-11-09-23-30-12
+.. nonce: Mwm3ZR
+.. section: Build
+
+The build dependencies for :mod:`sqlite3` are now detected by ``configure``
+and ``pkg-config``. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 45763
+.. date: 2021-11-09-10-15-33
+.. nonce: gP-vrX
+.. section: Build
+
+The build dependencies for :mod:`zlib`, :mod:`bz2`, and :mod:`lzma` are now
+detected by ``configure``.
+
+..
+
+.. bpo: 45747
+.. date: 2021-11-08-11-31-48
+.. nonce: AODmk_
+.. section: Build
+
+gdbm and dbm build dependencies are now detected by ``configure``.
+
+..
+
+.. bpo: 45743
+.. date: 2021-11-08-08-58-06
+.. nonce: fZ8CTi
+.. section: Build
+
+On macOS, the build system no longer passes ``search_paths_first`` to the
+linker. The flag has been the default since Xcode 4 / macOS 10.6.
+
+..
+
+.. bpo: 45723
+.. date: 2021-11-07-10-45-40
+.. nonce: AreusF
+.. section: Build
+
+``configure.ac`` is now compatible with autoconf 2.71. Deprecated checks
+``STDC_HEADERS`` and ``AC_HEADER_TIME`` have been removed.
+
+..
+
+.. bpo: 45723
+.. date: 2021-11-07-10-36-12
+.. nonce: JNwKSG
+.. section: Build
+
+``configure`` now prints a warning when pkg-config is missing.
+
+..
+
+.. bpo: 45731
+.. date: 2021-11-05-20-56-29
+.. nonce: 9SDnDf
+.. section: Build
+
+``configure --enable-loadable-sqlite-extensions`` is now handled by new
+``PY_SQLITE_ENABLE_LOAD_EXTENSION`` macro instead of logic in setup.py.
+
+..
+
+.. bpo: 45723
+.. date: 2021-11-05-15-09-49
+.. nonce: gfSxur
+.. section: Build
+
+configure.ac now uses custom helper macros and ``AC_CACHE_CHECK`` to
+simplify and speed up configure runs.
+
+..
+
+.. bpo: 45696
+.. date: 2021-11-03-00-19-50
+.. nonce: eKs46f
+.. section: Build
+
+Skip the marshal step for frozen modules by generating C code that produces
+a set of ready-to-use code objects. This speeds up startup time by another
+10% or more.
+
+..
+
+.. bpo: 45561
+.. date: 2021-10-21-14-38-30
+.. nonce: PVqhZE
+.. section: Build
+
+Run smelly.py tool from $(srcdir).
+
+..
+
+.. bpo: 46105
+.. date: 2021-12-08-16-36-20
+.. nonce: t1mJ6Q
+.. section: Windows
+
+Fixed calculation of :data:`sys.path` in a venv on Windows.
+
+..
+
+.. bpo: 45901
+.. date: 2021-11-26-18-17-41
+.. nonce: c5IBqM
+.. section: Windows
+
+When installed through the Microsoft Store and set as the default app for
+:file:`*.py` files, command line arguments will now be passed to Python when
+invoking a script without explicitly launching Python (that is, ``script.py
+args`` rather than ``python script.py args``).
+
+..
+
+.. bpo: 45616
+.. date: 2021-11-23-11-44-42
+.. nonce: K52PLZ
+.. section: Windows
+
+Fix Python Launcher's ability to distinguish between versions 3.1 and 3.10
+when either one is explicitly requested. Previously, 3.1 would be used if
+3.10 was requested but not installed, and 3.10 would be used if 3.1 was
+requested but 3.10 was installed.
+
+..
+
+.. bpo: 45850
+.. date: 2021-11-20-00-06-59
+.. nonce: q9lofz
+.. section: Windows
+
+Implement changes to build with deep-frozen modules on Windows. Note that we
+now require Python 3.10 as the "bootstrap" or "host" Python.
+
+..
+
+.. bpo: 45732
+.. date: 2021-11-08-21-53-11
+.. nonce: idl5kx
+.. section: Windows
+
+Updates bundled Tcl/Tk to 8.6.12.
+
+..
+
+.. bpo: 45720
+.. date: 2021-11-05-01-05-46
+.. nonce: 47Nc5I
+.. section: Windows
+
+Internal reference to :file:`shlwapi.dll` was dropped to help improve
+startup time. This DLL will no longer be loaded at the start of every Python
+process.
+
+..
+
+.. bpo: 45732
+.. date: 2021-12-05-23-52-03
+.. nonce: -BWrnh
+.. section: macOS
+
+Update python.org macOS installer to use Tcl/Tk 8.6.12.
+
+..
+
+.. bpo: 39026
+.. date: 2021-11-09-15-42-11
+.. nonce: sUnYWn
+.. section: C API
+
+Fix Python.h to build C extensions with Xcode: remove a relative include
+from ``Include/cpython/pystate.h``.
--- /dev/null
+.. bpo: 46070
+.. date: 2022-01-13-17-58-56
+.. nonce: q8IGth
+.. release date: 2022-01-13
+.. section: Core and Builtins
+
+:c:func:`Py_EndInterpreter` now explicitly untracks all objects currently
+tracked by the GC. Previously, if an object was used later by another
+interpreter, calling :c:func:`PyObject_GC_UnTrack` on the object crashed if
+the previous or the next object of the :c:type:`PyGC_Head` structure became
+a dangling pointer. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46347
+.. date: 2022-01-11-13-57-00
+.. nonce: Gd8M-S
+.. section: Core and Builtins
+
+Fix memory leak in PyEval_EvalCodeEx.
+
+..
+
+.. bpo: 46339
+.. date: 2022-01-11-11-50-19
+.. nonce: OVumDZ
+.. section: Core and Builtins
+
+Fix a crash in the parser when retrieving the error text for multi-line
+f-strings expressions that do not start in the first line of the string.
+Patch by Pablo Galindo
+
+..
+
+.. bpo: 46331
+.. date: 2022-01-10-16-21-54
+.. nonce: h1AC-i
+.. section: Core and Builtins
+
+Do not set line number of instruction storing doc-string. Fixes regression
+introduced in 3.11 alpha.
+
+..
+
+.. bpo: 46314
+.. date: 2022-01-10-12-34-17
+.. nonce: jId9Ky
+.. section: Core and Builtins
+
+Remove spurious "call" event when creating a lambda function that was
+accidentally introduced in 3.11a4.
+
+..
+
+.. bpo: 46289
+.. date: 2022-01-07-23-32-03
+.. nonce: NnjpVc
+.. section: Core and Builtins
+
+ASDL declaration of ``FormattedValue`` has changed to reflect ``conversion``
+field is not optional.
+
+..
+
+.. bpo: 46297
+.. date: 2022-01-07-22-13-59
+.. nonce: 83ThTl
+.. section: Core and Builtins
+
+Fixed an interpreter crash on bootup with multiple PythonPaths set in the
+Windows registry. Patch by Derzsi Dániel.
+
+..
+
+.. bpo: 46237
+.. date: 2022-01-07-19-33-05
+.. nonce: 9A6Hpq
+.. section: Core and Builtins
+
+Fix the line number of tokenizer errors inside f-strings. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 46263
+.. date: 2022-01-06-10-54-07
+.. nonce: 60dRZb
+.. section: Core and Builtins
+
+We always expect the "use_frozen_modules" config to be set, now that
+getpath.c was rewritten in pure Python and the logic improved.
+
+..
+
+.. bpo: 46006
+.. date: 2022-01-05-17-13-47
+.. nonce: hdH5Vn
+.. section: Core and Builtins
+
+Fix a regression when a type method like ``__init__()`` is modified in a
+subinterpreter. Fix a regression in ``_PyUnicode_EqualToASCIIId()`` and type
+``update_slot()``. Revert the change which made the Unicode dictionary of
+interned strings compatible with subinterpreters: the internal interned
+dictionary is shared again by all interpreters. Patch by Victor Stinner.
+
+..
+
+.. bpo: 45923
+.. date: 2022-01-04-14-08-10
+.. nonce: rBp7r1
+.. section: Core and Builtins
+
+Add RESUME opcode. This is a logical no-op. It is emitted by the compiler
+anywhere a Python function can be entered. It is used by the interpreter to
+perform tracing and optimizer checks.
+
+..
+
+.. bpo: 46208
+.. date: 2022-01-04-01-53-35
+.. nonce: i00Vz5
+.. section: Core and Builtins
+
+Fix the regression of os.path.normpath("A/../../B") not returning expected
+"../B" but "B".
+
+..
+
+.. bpo: 46240
+.. date: 2022-01-03-23-31-25
+.. nonce: 8lGjeK
+.. section: Core and Builtins
+
+Correct the error message for unclosed parentheses when the tokenizer
+doesn't reach the end of the source when the error is reported. Patch by
+Pablo Galindo
+
+..
+
+.. bpo: 46009
+.. date: 2022-01-03-11-36-34
+.. nonce: QZGrov
+.. section: Core and Builtins
+
+Remove the ``GEN_START`` opcode.
+
+..
+
+.. bpo: 46235
+.. date: 2022-01-02-23-55-13
+.. nonce: gUjp2v
+.. section: Core and Builtins
+
+Certain sequence multiplication operations like ``[0] * 1_000`` are now
+faster due to reference-counting optimizations. Patch by Dennis Sweeney.
+
+..
+
+.. bpo: 46221
+.. date: 2022-01-01-14-23-57
+.. nonce: 7oGp-I
+.. section: Core and Builtins
+
+:opcode:`PREP_RERAISE_STAR` no longer pushes ``lasti`` to the stack.
+
+..
+
+.. bpo: 46202
+.. date: 2021-12-30-11-06-27
+.. nonce: IKx4v6
+.. section: Core and Builtins
+
+Remove :opcode:`POP_EXCEPT_AND_RERAISE` and replace it by an equivalent
+sequence of other opcodes.
+
+..
+
+.. bpo: 46085
+.. date: 2021-12-30-00-23-41
+.. nonce: bDuJqu
+.. section: Core and Builtins
+
+Fix iterator cache mechanism of :class:`OrderedDict`.
+
+..
+
+.. bpo: 46055
+.. date: 2021-12-24-20-21-45
+.. nonce: R0QMVQ
+.. section: Core and Builtins
+
+Speed up shifting operation involving integers less than
+:c:macro:`PyLong_BASE`. Patch by Xinhang Xu.
+
+..
+
+.. bpo: 46110
+.. date: 2021-12-18-02-37-07
+.. nonce: B6hAfu
+.. section: Core and Builtins
+
+Add a maximum recursion check to the PEG parser to avoid stack overflow.
+Patch by Pablo Galindo
+
+..
+
+.. bpo: 46107
+.. date: 2021-12-16-23-27-05
+.. nonce: 7q5an0
+.. section: Core and Builtins
+
+Fix bug where :meth:`ExceptionGroup.split` and
+:meth:`ExceptionGroup.subgroup` did not copy the exception group's
+``__note__`` field to the parts.
+
+..
+
+.. bpo: 45711
+.. date: 2021-12-15-15-17-04
+.. nonce: QK4QrB
+.. section: Core and Builtins
+
+The interpreter state's representation of handled exceptions (a.k.a
+exc_info, or _PyErr_StackItem) now has only the ``exc_value`` field,
+``exc_type`` and ``exc_traceback`` have been removed as their values can be
+derived from ``exc_value``.
+
+..
+
+.. bpo: 44525
+.. date: 2021-12-13-17-12-16
+.. nonce: 4-FiSf
+.. section: Core and Builtins
+
+Replace the four call bytecode instructions which one pre-call instruction
+and two call instructions.
+
+Removes ``CALL_FUNCTION``, ``CALL_FUNCTION_KW``, ``CALL_METHOD`` and
+``CALL_METHOD_KW``.
+
+Adds ``CALL_NO_KW`` and ``CALL_KW`` call instructions, and
+``PRECALL_METHOD`` prefix for pairing with ``LOAD_METHOD``.
+
+..
+
+.. bpo: 46039
+.. date: 2021-12-13-17-01-13
+.. nonce: TrCBbF
+.. section: Core and Builtins
+
+Remove the ``YIELD_FROM`` instruction and replace it with the ``SEND``
+instruction which performs the same operation, but without the loop.
+
+..
+
+.. bpo: 45635
+.. date: 2021-12-12-15-52-41
+.. nonce: ADVaPT
+.. section: Core and Builtins
+
+The code called from :c:func:`_PyErr_Display` was refactored to improve
+error handling. It now exits immediately upon an unrecoverable error.
+
+..
+
+.. bpo: 46054
+.. date: 2021-12-12-05-30-21
+.. nonce: 2P-foG
+.. section: Core and Builtins
+
+Fix parser error when parsing non-utf8 characters in source files. Patch by
+Pablo Galindo.
+
+..
+
+.. bpo: 46042
+.. date: 2021-12-11-17-40-34
+.. nonce: aqYxku
+.. section: Core and Builtins
+
+Improve the location of the caret in :exc:`SyntaxError` exceptions emitted
+by the symbol table. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 46049
+.. date: 2021-12-11-13-49-19
+.. nonce: 9dNto2
+.. section: Core and Builtins
+
+Ensure :file:`._pth` files work as intended on platforms other than Windows.
+
+..
+
+.. bpo: 46048
+.. date: 2021-12-11-13-14-42
+.. nonce: _-OGD9
+.. section: Core and Builtins
+
+Fixes parsing of :file:`._pth` files on startup so that single-character
+paths are correctly read.
+
+..
+
+.. bpo: 37971
+.. date: 2021-12-10-13-42-17
+.. nonce: 6BC1Tx
+.. section: Core and Builtins
+
+Fix a bug where the line numbers given in a traceback when a decorator
+application raised an exception were wrong.
+
+..
+
+.. bpo: 46031
+.. date: 2021-12-10-09-10-32
+.. nonce: rM7JOX
+.. section: Core and Builtins
+
+Add :opcode:`POP_JUMP_IF_NOT_NONE` and :opcode:`POP_JUMP_IF_NONE` opcodes to
+speed up conditional jumps.
+
+..
+
+.. bpo: 45654
+.. date: 2021-12-09-11-57-43
+.. nonce: MZc7ei
+.. section: Core and Builtins
+
+Deepfreeze :mod:`runpy`, patch by Kumar Aditya.
+
+..
+
+.. bpo: 46025
+.. date: 2021-12-09-11-41-35
+.. nonce: pkEvW9
+.. section: Core and Builtins
+
+Fix a crash in the :mod:`atexit` module involving functions that unregister
+themselves before raising exceptions. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 46000
+.. date: 2021-12-07-11-42-44
+.. nonce: v_ru3k
+.. section: Core and Builtins
+
+Improve compatibility of the :mod:`curses` module with NetBSD curses.
+
+..
+
+.. bpo: 44525
+.. date: 2021-12-07-11-04-21
+.. nonce: 6OWCgr
+.. section: Core and Builtins
+
+Specialize the CALL_FUNCTION instruction for calls to builtin types with a
+single argument. Speeds up ``range(x)``, ``list(x)``, and specifically
+``type(obj)``.
+
+..
+
+.. bpo: 42918
+.. date: 2021-12-06-15-32-12
+.. nonce: Czpgtg
+.. section: Core and Builtins
+
+Fix bug where the built-in :func:`compile` function did not always raise a
+:exc:`SyntaxError` when passed multiple statements in 'single' mode. Patch
+by Weipeng Hong.
+
+..
+
+.. bpo: 45953
+.. date: 2021-12-01-11-54-27
+.. nonce: 2znR0E
+.. section: Core and Builtins
+
+The main interpreter in _PyRuntimeState.interpreters is now statically
+allocated (as part of _PyRuntime). Likewise for the initial thread state of
+each interpreter. This means less allocation during runtime init, as well
+as better memory locality for these key state objects.
+
+..
+
+.. bpo: 45292
+.. date: 2021-11-22-13-05-32
+.. nonce: pfEouJ
+.. section: Core and Builtins
+
+Complete the :pep:`654` implementation: add ``except*``.
+
+..
+
+.. bpo: 43413
+.. date: 2021-05-30-16-37-47
+.. nonce: vYFPPC1
+.. section: Core and Builtins
+
+Revert changes in ``set.__init__``. Subclass of :class:`set` needs to define
+a ``__init__()`` method if it defines a ``__new__()`` method with additional
+keyword parameters.
+
+..
+
+.. bpo: 43931
+.. date: 2021-04-24-15-39-23
+.. nonce: zpChDi
+.. section: Core and Builtins
+
+Added the :c:data:`Py_Version` constant which bears the same value as
+:c:macro:`PY_VERSION_HEX`. Patch by Gabriele N. Tornetta.
+
+..
+
+.. bpo: 46342
+.. date: 2022-01-11-04-28-09
+.. nonce: 5QVEH1
+.. section: Library
+
+The ``@typing.final`` decorator now sets the ``__final__`` attribute on the
+decorated object to allow runtime introspection. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 46328
+.. date: 2022-01-10-11-53-15
+.. nonce: 6i9Wvq
+.. section: Library
+
+Added the :meth:`sys.exception` method which returns the active exception
+instance.
+
+..
+
+.. bpo: 46307
+.. date: 2022-01-10-07-51-43
+.. nonce: SKvOIY
+.. section: Library
+
+Add :meth:`string.Template.is_valid` and
+:meth:`string.Template.get_identifiers` methods.
+
+..
+
+.. bpo: 46306
+.. date: 2022-01-08-13-53-25
+.. nonce: 1_es8z
+.. section: Library
+
+Assume that :class:`types.CodeType` always has
+:attr:`types.CodeType.co_firstlineno` in :mod:`doctest`.
+
+..
+
+.. bpo: 40479
+.. date: 2022-01-07-15-20-19
+.. nonce: EKfr3F
+.. section: Library
+
+Fix :mod:`hashlib` *usedforsecurity* option to work correctly with OpenSSL
+3.0.0 in FIPS mode.
+
+..
+
+.. bpo: 46070
+.. date: 2022-01-07-13-51-22
+.. nonce: -axLUW
+.. section: Library
+
+Fix possible segfault when importing the :mod:`asyncio` module from
+different sub-interpreters in parallel. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 46244
+.. date: 2022-01-06-21-31-14
+.. nonce: hjyfJj
+.. section: Library
+
+Removed ``__slots__`` from :class:`typing.ParamSpec` and
+:class:`typing.TypeVar`. They served no purpose. Patch by Arie Bovenberg.
+
+..
+
+.. bpo: 46278
+.. date: 2022-01-06-13-38-00
+.. nonce: wILA80
+.. section: Library
+
+Reflect ``context`` argument in ``AbstractEventLoop.call_*()`` methods. Loop
+implementations already support it.
+
+..
+
+.. bpo: 46269
+.. date: 2022-01-05-18-16-13
+.. nonce: K16Z1S
+.. section: Library
+
+Remove special-casing of ``__new__`` in :meth:`enum.Enum.__dir__`.
+
+..
+
+.. bpo: 46266
+.. date: 2022-01-05-12-48-18
+.. nonce: ACQCgX
+.. section: Library
+
+Improve day constants in :mod:`calendar`.
+
+Now all constants (`MONDAY` ... `SUNDAY`) are documented, tested, and added
+to ``__all__``.
+
+..
+
+.. bpo: 46257
+.. date: 2022-01-04-11-04-20
+.. nonce: _o2ADe
+.. section: Library
+
+Optimized the mean, variance, and stdev functions in the statistics module.
+If the input is an iterator, it is consumed in a single pass rather than
+eating memory by conversion to a list. The single pass algorithm is about
+twice as fast as the previous two pass code.
+
+..
+
+.. bpo: 41011
+.. date: 2022-01-03-21-03-50
+.. nonce: uULmGi
+.. section: Library
+
+Added two new variables to *pyvenv.cfg* which is generated by :mod:`venv`
+module: *executable* for the executable and *command* for the command line
+used to create the environment.
+
+..
+
+.. bpo: 46239
+.. date: 2022-01-03-12-59-20
+.. nonce: ySVSEy
+.. section: Library
+
+Improve error message when importing :mod:`asyncio.windows_events` on
+non-Windows.
+
+..
+
+.. bpo: 46238
+.. date: 2022-01-03-12-19-10
+.. nonce: lANhCi
+.. section: Library
+
+Reuse ``_winapi`` constants in ``asyncio.windows_events``.
+
+..
+
+.. bpo: 46222
+.. date: 2022-01-01-17-34-32
+.. nonce: s2fzZU
+.. section: Library
+
+Adding ``SF_NOCACHE`` sendfile constant for FreeBSD for the posixmodule.
+
+..
+
+.. bpo: 37295
+.. date: 2021-12-27-15-52-28
+.. nonce: s3LPo0
+.. section: Library
+
+Add fast path for ``0 <= k <= n <= 67`` for :func:`math.comb`.
+
+..
+
+.. bpo: 46176
+.. date: 2021-12-25-11-11-21
+.. nonce: EOY9wd
+.. section: Library
+
+Adding the ``MAP_STACK`` constant for the mmap module.
+
+..
+
+.. bpo: 43424
+.. date: 2021-12-23-14-36-58
+.. nonce: d9x2JZ
+.. section: Library
+
+Deprecate :attr:`webbrowser.MacOSXOSAScript._name` and use ``name`` instead.
+
+..
+
+.. bpo: 45321
+.. date: 2021-12-19-00-00-48
+.. nonce: OyuhaY
+.. section: Library
+
+Added missing error codes to module ``xml.parsers.expat.errors``.
+
+..
+
+.. bpo: 46125
+.. date: 2021-12-18-18-29-07
+.. nonce: LLmcox
+.. section: Library
+
+Refactor tests to test traversable API directly. Includes changes from
+importlib 5.4.0.
+
+..
+
+.. bpo: 46118
+.. date: 2021-12-17-16-27-44
+.. nonce: euAy0E
+.. section: Library
+
+Moved importlib.resources and its related functionality to a package.
+
+..
+
+.. bpo: 37578
+.. date: 2021-12-17-13-22-37
+.. nonce: _tluuR
+.. section: Library
+
+Add *include_hidden* parameter to :func:`~glob.glob` and :func:`~glob.iglob`
+to match hidden files and directories when using special characters like
+``*``, ``**``, ``?`` and ``[]``.
+
+..
+
+.. bpo: 20369
+.. date: 2021-12-17-12-06-40
+.. nonce: zzLuBz
+.. section: Library
+
+:func:`concurrent.futures.wait` no longer blocks forever when given
+duplicate Futures. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 46105
+.. date: 2021-12-16-14-30-36
+.. nonce: pprB1K
+.. section: Library
+
+Honor spec when generating requirement specs with urls and extras
+(importlib_metadata 4.8.3).
+
+..
+
+.. bpo: 44893
+.. date: 2021-12-16-13-54-55
+.. nonce: I7aLiW
+.. section: Library
+
+EntryPoint objects are no longer tuples. Recommended means to access is by
+attribute ('.name', '.group') or accessor ('.load()'). Access by index is
+deprecated and will raise deprecation warning.
+
+..
+
+.. bpo: 22815
+.. date: 2021-12-16-12-54-21
+.. nonce: 0NRH8s
+.. section: Library
+
+Print unexpected successes together with failures and errors in summary in
+:class:`unittest.TextTestResult`.
+
+..
+
+.. bpo: 22047
+.. date: 2021-12-15-19-24-54
+.. nonce: gBV4vT
+.. section: Library
+
+Calling :meth:`add_argument_group` on an argument group is deprecated.
+Calling :meth:`add_argument_group` or :meth:`add_mutually_exclusive_group`
+on a mutually exclusive group is deprecated.
+
+These features were never supported and do not always work correctly. The
+functions exist on the API by accident through inheritance and will be
+removed in the future.
+
+..
+
+.. bpo: 26952
+.. date: 2021-12-14-13-18-45
+.. nonce: hjhISq
+.. section: Library
+
+:mod:`argparse` raises :exc:`ValueError` with clear message when trying to
+render usage for an empty mutually exclusive group. Previously it raised a
+cryptic :exc:`IndexError`.
+
+..
+
+.. bpo: 45615
+.. date: 2021-12-13-15-51-16
+.. nonce: hVx83Q
+.. section: Library
+
+Functions in the :mod:`traceback` module raise :exc:`TypeError` rather than
+:exc:`AttributeError` when an exception argument is not of type
+:exc:`BaseException`.
+
+..
+
+.. bpo: 16594
+.. date: 2021-12-12-13-41-47
+.. nonce: yfC7L4
+.. section: Library
+
+Add allow allow_reuse_port flag in socketserver.
+
+..
+
+.. bpo: 27718
+.. date: 2021-12-11-22-51-30
+.. nonce: MgQiGl
+.. section: Library
+
+Fix help for the :mod:`signal` module. Some functions (e.g. ``signal()`` and
+``getsignal()``) were omitted.
+
+..
+
+.. bpo: 46032
+.. date: 2021-12-11-15-45-07
+.. nonce: HmciLT
+.. section: Library
+
+The ``registry()`` method of :func:`functools.singledispatch` functions
+checks now the first argument or the first parameter annotation and raises a
+TypeError if it is not supported. Previously unsupported "types" were
+ignored (e.g. ``typing.List[int]``) or caused an error at calling time (e.g.
+``list[int]``).
+
+..
+
+.. bpo: 46014
+.. date: 2021-12-10-03-13-57
+.. nonce: 3xYdST
+.. section: Library
+
+Add ability to use ``typing.Union`` and ``types.UnionType`` as dispatch
+argument to ``functools.singledispatch``. Patch provided by Yurii Karabas.
+
+..
+
+.. bpo: 27062
+.. date: 2021-12-09-11-50-32
+.. nonce: R5vii6
+.. section: Library
+
+Add :attr:`__all__` to :mod:`inspect`, patch by Kumar Aditya.
+
+..
+
+.. bpo: 46018
+.. date: 2021-12-09-00-44-42
+.. nonce: hkTI7v
+.. section: Library
+
+Ensure that :func:`math.expm1` does not raise on underflow.
+
+..
+
+.. bpo: 46016
+.. date: 2021-12-08-19-15-03
+.. nonce: s9PuyF
+.. section: Library
+
+Adding :attr:`F_DUP2FD` and :attr:`F_DUP2FD_CLOEXEC` constants from FreeBSD
+into the fcntl module.
+
+..
+
+.. bpo: 45755
+.. date: 2021-12-07-21-55-22
+.. nonce: bRqKGa
+.. section: Library
+
+:mod:`typing` generic aliases now reveal the class attributes of the
+original generic class when passed to ``dir()``. This was the behavior up to
+Python 3.6, but was changed in 3.7-3.9.
+
+..
+
+.. bpo: 45874
+.. date: 2021-12-02-11-55-45
+.. nonce: dtJIsN
+.. section: Library
+
+The empty query string, consisting of no query arguments, is now handled
+correctly in ``urllib.parse.parse_qsl``. This caused problems before when
+strict parsing was enabled.
+
+..
+
+.. bpo: 44674
+.. date: 2021-11-29-19-37-20
+.. nonce: NijWLt
+.. section: Library
+
+Change how dataclasses disallows mutable default values. It used to use a
+list of known types (list, dict, set). Now it disallows unhashable objects
+to be defaults. It's using unhashability as a proxy for mutability. Patch
+by Eric V. Smith, idea by Raymond Hettinger.
+
+..
+
+.. bpo: 23882
+.. date: 2021-11-24-19-09-14
+.. nonce: _tctCv
+.. section: Library
+
+Remove namespace package (PEP 420) support from unittest discovery. It was
+introduced in Python 3.4 but has been broken since Python 3.7.
+
+..
+
+.. bpo: 25066
+.. date: 2021-11-24-12-25-42
+.. nonce: YIcIkn
+.. section: Library
+
+Added a :meth:`__repr__` method to :class:`multiprocessing.Event` objects,
+patch by Kumar Aditya.
+
+..
+
+.. bpo: 45643
+.. date: 2021-10-28-11-40-59
+.. nonce: jeiPiX
+.. section: Library
+
+Added :data:`signal.SIGSTKFLT` on platforms where this signal is defined.
+
+..
+
+.. bpo: 44092
+.. date: 2021-05-19-12-35-49
+.. nonce: hiSlI5
+.. section: Library
+
+Fetch across rollback no longer raises :exc:`~sqlite3.InterfaceError`.
+Instead we leave it to the SQLite library to handle these cases. Patch by
+Erlend E. Aasland.
+
+..
+
+.. bpo: 42413
+.. date: 2020-11-26-10-23-46
+.. nonce: HFikOl
+.. section: Library
+
+Replace ``concurrent.futures.TimeoutError`` and ``asyncio.TimeoutError``
+with builtin :exc:`TimeoutError`, keep these names as deprecated aliases.
+
+..
+
+.. bpo: 46196
+.. date: 2021-12-30-19-12-24
+.. nonce: UvQ8Sq
+.. section: Documentation
+
+Document method :meth:`cmd.Cmd.columnize`.
+
+..
+
+.. bpo: 46120
+.. date: 2021-12-21-12-45-57
+.. nonce: PE0DmJ
+.. section: Documentation
+
+State that ``|`` is preferred for readability over ``Union`` in the
+:mod:`typing` docs.
+
+..
+
+.. bpo: 46109
+.. date: 2021-12-16-21-13-55
+.. nonce: 0-RNzu
+.. section: Documentation
+
+Extracted ``importlib.resources`` and ``importlib.resources.abc``
+documentation into separate files.
+
+..
+
+.. bpo: 19737
+.. date: 2021-11-28-22-43-21
+.. nonce: cOOubB
+.. section: Documentation
+
+Update the documentation for the :func:`globals` function.
+
+..
+
+.. bpo: 46296
+.. date: 2022-01-08-00-00-38
+.. nonce: vqxgTm
+.. section: Tests
+
+Add a test case for :mod:`enum` with ``_use_args_ == True`` and
+``_member_type_ == object``.
+
+..
+
+.. bpo: 46205
+.. date: 2022-01-07-14-06-12
+.. nonce: dnc2OC
+.. section: Tests
+
+Fix hang in runtest_mp due to race condition
+
+..
+
+.. bpo: 46263
+.. date: 2022-01-06-15-45-34
+.. nonce: bJXek6
+.. section: Tests
+
+Fix test_capi on FreeBSD 14-dev: instruct jemalloc to not fill freed memory
+with junk byte.
+
+..
+
+.. bpo: 46262
+.. date: 2022-01-05-01-38-45
+.. nonce: MhiLWP
+.. section: Tests
+
+Cover ``ValueError`` path in tests for :meth:`enum.Flag._missing_`.
+
+..
+
+.. bpo: 46150
+.. date: 2021-12-23-13-42-15
+.. nonce: RhtADs
+.. section: Tests
+
+Now ``fakename`` in ``test_pathlib.PosixPathTest.test_expanduser`` is
+checked to be non-existent.
+
+..
+
+.. bpo: 46129
+.. date: 2021-12-19-12-20-57
+.. nonce: I3MunH
+.. section: Tests
+
+Rewrite ``asyncio.locks`` tests with
+:class:`unittest.IsolatedAsyncioTestCase` usage.
+
+..
+
+.. bpo: 23819
+.. date: 2021-12-19-08-44-32
+.. nonce: 9ueiII
+.. section: Tests
+
+Fixed :mod:`asyncio` tests in python optimized mode. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 46114
+.. date: 2021-12-17-14-46-19
+.. nonce: 9iyZ_9
+.. section: Tests
+
+Fix test case for OpenSSL 3.0.1 version. OpenSSL 3.0 uses ``0xMNN00PP0L``.
+
+..
+
+.. bpo: 44133
+.. date: 2022-01-12-13-42-16
+.. nonce: NgyNAh
+.. section: Build
+
+When Python is configured with :option:`--without-static-libpython`, the
+Python static library (libpython.a) is no longer built. Patch by Victor
+Stinner.
+
+..
+
+.. bpo: 44133
+.. date: 2022-01-12-13-34-52
+.. nonce: HYCNXb
+.. section: Build
+
+When Python is built without :option:`--enable-shared`, the ``python``
+program is now linked to object files, rather than being linked to the
+Python static library (libpython.a), to make sure that all symbols are
+exported. Previously, the linker omitted some symbols like the
+:c:func:`Py_FrozenMain` function. Patch by Victor Stinner.
+
+..
+
+.. bpo: 40280
+.. date: 2022-01-12-10-22-23
+.. nonce: 5maBz8
+.. section: Build
+
+The ``configure`` script has a new option ``--with-emscripten-target`` to
+select browser or node as Emscripten build target.
+
+..
+
+.. bpo: 46315
+.. date: 2022-01-09-15-48-49
+.. nonce: NdCRLu
+.. section: Build
+
+Added and fixed ``#ifdef HAVE_FEATURE`` checks for functionality that is not
+available on WASI platform.
+
+..
+
+.. bpo: 45723
+.. date: 2022-01-07-08-33-45
+.. nonce: uq2nBU
+.. section: Build
+
+Fixed a regression in ``configure`` check for :func:`select.epoll`.
+
+..
+
+.. bpo: 46263
+.. date: 2022-01-05-02-58-10
+.. nonce: xiv8NU
+.. section: Build
+
+``configure`` no longer sets ``MULTIARCH`` on FreeBSD platforms.
+
+..
+
+.. bpo: 46106
+.. date: 2021-12-20-07-10-41
+.. nonce: 5qcv3L
+.. section: Build
+
+Updated OpenSSL to 1.1.1m in Windows builds, macOS installer builds, and CI.
+Patch by Kumar Aditya.
+
+..
+
+.. bpo: 46088
+.. date: 2021-12-16-14-18-07
+.. nonce: 8UUuAd
+.. section: Build
+
+Automatically detect or install bootstrap Python runtime when building from
+Visual Studio.
+
+..
+
+.. bpo: 46072
+.. date: 2021-12-15-10-37-44
+.. nonce: GgeAU3
+.. section: Build
+
+Add a --with-pystats configure option to turn on internal statistics
+gathering.
+
+..
+
+.. bpo: 40280
+.. date: 2021-12-13-21-03-52
+.. nonce: b7NG4Y
+.. section: Build
+
+A new directory ``Tools/wasm`` contains WebAssembly-related helpers like
+``config.site`` override for wasm32-emscripten, wasm assets generator to
+bundle the stdlib, and a README.
+
+..
+
+.. bpo: 46023
+.. date: 2021-12-09-10-25-11
+.. nonce: PLpNB6
+.. section: Build
+
+:program:`makesetup` no longer builds extensions that have been marked as
+*disabled*. This allows users to disable modules in ``Modules/Setup.local``.
+
+..
+
+.. bpo: 45949
+.. date: 2021-12-02-23-21-18
+.. nonce: OTSo9X
+.. section: Build
+
+Use pure Python ``freeze_module`` for all but importlib bootstrap files.
+``--with-freeze-module`` :program:`configure` option is no longer needed for
+cross builds.
+
+..
+
+.. bpo: 46217
+.. date: 2022-01-07-22-55-11
+.. nonce: tgJEsB
+.. section: Windows
+
+Removed parameter that is unsupported on Windows 8.1 and early Windows 10
+and may have caused build or runtime failures.
+
+..
+
+.. bpo: 40477
+.. date: 2022-01-02-21-56-53
+.. nonce: W3nnM6
+.. section: macOS
+
+The Python Launcher app for macOS now properly launches scripts and, if
+necessary, the Terminal app when running on recent macOS releases.
+
+..
+
+.. bpo: 46236
+.. date: 2022-01-05-10-16-16
+.. nonce: pcmVQw
+.. section: C API
+
+Fix a bug in :c:func:`PyFunction_GetAnnotations` that caused it to return a
+``tuple`` instead of a ``dict``.
+
+..
+
+.. bpo: 46140
+.. date: 2021-12-21-22-56-36
+.. nonce: dvXkYK
+.. section: C API
+
+:c:func:`PyBuffer_GetPointer`, :c:func:`PyBuffer_FromContiguous`,
+:c:func:`PyBuffer_ToContiguous` and :c:func:`PyMemoryView_FromBuffer` now
+take buffer info by ``const Py_buffer *`` instead of ``Py_buffer *``, as
+they do not need mutability. :c:func:`PyBuffer_FromContiguous` also now
+takes the source buffer as ``const void *``, and similarly
+:c:func:`PyBuffer_GetPointer` takes the strides as ``const Py_ssize_t *``.
+
+..
+
+.. bpo: 45855
+.. date: 2021-12-12-10-09-02
+.. nonce: MVsTDj
+.. section: C API
+
+Document that the *no_block* argument to :c:func:`PyCapsule_Import` is a
+no-op now.
+
+..
+
+.. bpo: 45855
+.. date: 2021-12-11-08-41-36
+.. nonce: Lq2_gR
+.. section: C API
+
+Replaced deprecated usage of :c:func:`PyImport_ImportModuleNoBlock` with
+:c:func:`PyImport_ImportModule` in stdlib modules. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 46007
+.. date: 2021-12-08-12-41-51
+.. nonce: sMgDLz
+.. section: C API
+
+The :c:func:`PyUnicode_CHECK_INTERNED` macro has been excluded from the
+limited C API. It was never usable there, because it used internal
+structures which are not available in the limited C API. Patch by Victor
+Stinner.
--- /dev/null
+.. bpo: 45773
+.. date: 2022-02-01-14-30-56
+.. nonce: Up77LD
+.. release date: 2022-02-03
+.. section: Core and Builtins
+
+Remove two invalid "peephole" optimizations from the bytecode compiler.
+
+..
+
+.. bpo: 46564
+.. date: 2022-02-01-10-23-21
+.. nonce: 6Xc2_H
+.. section: Core and Builtins
+
+Do not create frame objects when creating :class:`super` object. Patch by
+Kumar Aditya.
+
+..
+
+.. bpo: 45885
+.. date: 2022-02-01-01-17-28
+.. nonce: CjyNf_
+.. section: Core and Builtins
+
+Added more fined-grained specialization failure stats regarding the
+``COMPARE_OP`` bytecode.
+
+..
+
+.. bpo: 44977
+.. date: 2022-01-30-18-23-08
+.. nonce: BQV_zS
+.. section: Core and Builtins
+
+The delegation of :func:`int` to :meth:`__trunc__` is now deprecated.
+Calling ``int(a)`` when ``type(a)`` implements :meth:`__trunc__` but not
+:meth:`__int__` or :meth:`__index__` now raises a :exc:`DeprecationWarning`.
+
+..
+
+.. bpo: 46458
+.. date: 2022-01-27-10-49-34
+.. nonce: 5Gm3Gv
+.. section: Core and Builtins
+
+Reorder code emitted by the compiler for a :keyword:`try`-:keyword:`except`
+block so that the :keyword:`else` block's code immediately follows the
+:keyword:`try` body (without a jump). This is more optimal for the happy
+path.
+
+..
+
+.. bpo: 46527
+.. date: 2022-01-25-19-34-55
+.. nonce: mQLNPk
+.. section: Core and Builtins
+
+Allow passing ``iterable`` as a keyword argument to :func:`enumerate` again.
+Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 46528
+.. date: 2022-01-25-17-40-07
+.. nonce: 2Qmni9
+.. section: Core and Builtins
+
+Replace several stack manipulation instructions (``DUP_TOP``,
+``DUP_TOP_TWO``, ``ROT_TWO``, ``ROT_THREE``, ``ROT_FOUR``, and ``ROT_N``)
+with new :opcode:`COPY` and :opcode:`SWAP` instructions.
+
+..
+
+.. bpo: 46329
+.. date: 2022-01-25-11-44-17
+.. nonce: SEhynE
+.. section: Core and Builtins
+
+Use two or three bytecodes to implement most calls.
+
+Calls without named arguments are implemented as a sequence of two
+instructions: ``PRECALL; CALL``. Calls with named arguments are implemented
+as a sequence of three instructions: ``PRECALL; KW_NAMES; CALL``. There are
+two different ``PRECALL`` instructions: ``PRECALL_FUNTION`` and
+``PRECALL_METHOD``. The latter pairs with ``LOAD_METHOD``.
+
+This partition into pre-call and call allows better specialization, and thus
+better performance ultimately.
+
+There is no change in semantics.
+
+..
+
+.. bpo: 46503
+.. date: 2022-01-24-21-24-41
+.. nonce: 4UrPsE
+.. section: Core and Builtins
+
+Fix an assert when parsing some invalid \N escape sequences in f-strings.
+
+..
+
+.. bpo: 46431
+.. date: 2022-01-24-16-58-01
+.. nonce: N6mKAx
+.. section: Core and Builtins
+
+Improve error message on invalid calls to
+:meth:`BaseExceptionGroup.__new__`.
+
+..
+
+.. bpo: 46476
+.. date: 2022-01-24-15-39-34
+.. nonce: cvP1Mr
+.. section: Core and Builtins
+
+Fix memory leak in code objects generated by deepfreeze. Patch by Kumar
+Aditya.
+
+..
+
+.. bpo: 46481
+.. date: 2022-01-23-06-56-33
+.. nonce: X_FfnB
+.. section: Core and Builtins
+
+Speed up calls to :meth:`weakref.ref.__call__` by using the :pep:`590`
+``vectorcall`` calling convention. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 46417
+.. date: 2022-01-22-14-39-23
+.. nonce: 3U5SfN
+.. section: Core and Builtins
+
+Fix a race condition on setting a type ``__bases__`` attribute: the internal
+function ``add_subclass()`` now gets the ``PyTypeObject.tp_subclasses``
+member after calling :c:func:`PyWeakref_NewRef` which can trigger a garbage
+collection which can indirectly modify ``PyTypeObject.tp_subclasses``. Patch
+by Victor Stinner.
+
+..
+
+.. bpo: 46417
+.. date: 2022-01-21-12-24-14
+.. nonce: i3IqMf
+.. section: Core and Builtins
+
+``python -X showrefcount`` now shows the total reference count after
+clearing and destroyed the main Python interpreter. Previously, it was shown
+before. Patch by Victor Stinner.
+
+..
+
+.. bpo: 43683
+.. date: 2022-01-20-17-13-49
+.. nonce: BqQ26Z
+.. section: Core and Builtins
+
+Add ASYNC_GEN_WRAP opcode to wrap the value to be yielded in async
+generators. Removes the need to special case async generators in the
+``YIELD_VALUE`` instruction.
+
+..
+
+.. bpo: 46407
+.. date: 2022-01-17-23-12-01
+.. nonce: 2_5a7R
+.. section: Core and Builtins
+
+Optimize some modulo operations in ``Objects/longobject.c``. Patch by
+Jeremiah Vivian.
+
+..
+
+.. bpo: 46409
+.. date: 2022-01-17-12-57-27
+.. nonce: HouS6m
+.. section: Core and Builtins
+
+Add new ``RETURN_GENERATOR`` bytecode to make generators. Simplifies calling
+Python functions in the VM, as they no longer any need to special case
+generator functions.
+
+Also add ``JUMP_NO_INTERRUPT`` bytecode that acts like ``JUMP_ABSOLUTE``,
+but does not check for interrupts.
+
+..
+
+.. bpo: 46406
+.. date: 2022-01-16-15-40-11
+.. nonce: g0mke-
+.. section: Core and Builtins
+
+The integer division ``//`` implementation has been optimized to better let
+the compiler understand its constraints. It can be 20% faster on the amd64
+platform when dividing an int by a value smaller than ``2**30``.
+
+..
+
+.. bpo: 46383
+.. date: 2022-01-14-20-55-34
+.. nonce: v8MTl4
+.. section: Core and Builtins
+
+Fix invalid signature of ``_zoneinfo``'s ``module_free`` function to resolve
+a crash on wasm32-emscripten platform.
+
+..
+
+.. bpo: 46361
+.. date: 2022-01-12-17-15-17
+.. nonce: mgI_j_
+.. section: Core and Builtins
+
+Ensure that "small" integers created by :meth:`int.from_bytes` and
+:class:`decimal.Decimal` are properly cached.
+
+..
+
+.. bpo: 46161
+.. date: 2021-12-23-12-32-45
+.. nonce: EljBmu
+.. section: Core and Builtins
+
+Fix the class building error when the arguments are constants and
+CALL_FUNCTION_EX is used.
+
+..
+
+.. bpo: 46028
+.. date: 2021-12-16-15-04-58
+.. nonce: zfWacB
+.. section: Core and Builtins
+
+Fixes calculation of :data:`sys._base_executable` when inside a virtual
+environment that uses symlinks with different binary names than the base
+environment provides.
+
+..
+
+.. bpo: 46091
+.. date: 2021-12-16-00-24-00
+.. nonce: rJ_e_e
+.. section: Core and Builtins
+
+Correctly calculate indentation levels for lines with whitespace character
+that are ended by line continuation characters. Patch by Pablo Galindo
+
+..
+
+.. bpo: 30512
+.. date: 2021-12-12-00-49-19
+.. nonce: nU9E9V
+.. section: Core and Builtins
+
+Add CAN Socket support for NetBSD.
+
+..
+
+.. bpo: 46045
+.. date: 2021-12-11-11-36-48
+.. nonce: sfThay
+.. section: Core and Builtins
+
+Do not use POSIX semaphores on NetBSD
+
+..
+
+.. bpo: 44024
+.. date: 2021-05-04-21-55-49
+.. nonce: M9m8Qd
+.. section: Core and Builtins
+
+Improve the exc:`TypeError` message for non-string second arguments passed
+to the built-in functions :func:`getattr` and :func:`hasattr`. Patch by Géry
+Ogam.
+
+..
+
+.. bpo: 46624
+.. date: 2022-02-03-12-07-41
+.. nonce: f_Qqh0
+.. section: Library
+
+Restore support for non-integer arguments of :func:`random.randrange` and
+:func:`random.randint`.
+
+..
+
+.. bpo: 46591
+.. date: 2022-01-31-15-40-38
+.. nonce: prBD1M
+.. section: Library
+
+Make the IDLE doc URL on the About IDLE dialog clickable.
+
+..
+
+.. bpo: 46565
+.. date: 2022-01-28-19-48-31
+.. nonce: bpZXO4
+.. section: Library
+
+Remove loop variables that are leaking into modules' namespaces.
+
+..
+
+.. bpo: 46553
+.. date: 2022-01-28-08-47-53
+.. nonce: f7Uc96
+.. section: Library
+
+In :func:`typing.get_type_hints`, support evaluating bare stringified
+``ClassVar`` annotations. Patch by Gregory Beauregard.
+
+..
+
+.. bpo: 46544
+.. date: 2022-01-27-13-30-02
+.. nonce: oFDVWj
+.. section: Library
+
+Don't leak ``x`` & ``uspace`` intermediate vars in
+:class:`textwrap.TextWrapper`.
+
+..
+
+.. bpo: 46487
+.. date: 2022-01-27-12-24-38
+.. nonce: UDkN2z
+.. section: Library
+
+Add the ``get_write_buffer_limits`` method to
+:class:`asyncio.transports.WriteTransport` and to the SSL transport.
+
+..
+
+.. bpo: 45173
+.. date: 2022-01-27-11-16-59
+.. nonce: wreRF2
+.. section: Library
+
+Note the configparser deprecations will be removed in Python 3.12.
+
+..
+
+.. bpo: 45162
+.. date: 2022-01-26-23-58-48
+.. nonce: 4Jmg_j
+.. section: Library
+
+The deprecated :mod:`unittest` APIs removed in 3.11a1 have been temporarily
+restored to be removed in 3.12 while cleanups in external projects go in.
+
+..
+
+.. bpo: 46539
+.. date: 2022-01-26-20-36-30
+.. nonce: 23iW1d
+.. section: Library
+
+In :func:`typing.get_type_hints`, support evaluating stringified
+``ClassVar`` and ``Final`` annotations inside ``Annotated``. Patch by
+Gregory Beauregard.
+
+..
+
+.. bpo: 46510
+.. date: 2022-01-25-10-59-41
+.. nonce: PM5svI
+.. section: Library
+
+Add missing test for :class:`types.TracebackType` and
+:class:`types.FrameType`. Calculate them directly from the caught exception
+without calling :func:`sys.exc_info`.
+
+..
+
+.. bpo: 46491
+.. date: 2022-01-24-23-55-30
+.. nonce: jmIKHo
+.. section: Library
+
+Allow :data:`typing.Annotated` to wrap :data:`typing.Final` and
+:data:`typing.ClassVar`. Patch by Gregory Beauregard.
+
+..
+
+.. bpo: 46483
+.. date: 2022-01-24-13-00-09
+.. nonce: 9XnmKp
+.. section: Library
+
+Remove :meth:`~object.__class_getitem__` from :class:`pathlib.PurePath` as
+this class was not supposed to be generic.
+
+..
+
+.. bpo: 46436
+.. date: 2022-01-23-19-37-00
+.. nonce: Biz1p9
+.. section: Library
+
+Fix command-line option ``-d``/``--directory`` in module :mod:`http.server`
+which is ignored when combined with command-line option ``--cgi``. Patch by
+Géry Ogam.
+
+..
+
+.. bpo: 41403
+.. date: 2022-01-23-18-04-45
+.. nonce: SgoHqV
+.. section: Library
+
+Make :meth:`mock.patch` raise a :exc:`TypeError` with a relevant error
+message on invalid arg. Previously it allowed a cryptic
+:exc:`AttributeError` to escape.
+
+..
+
+.. bpo: 46474
+.. date: 2022-01-22-14-49-10
+.. nonce: eKQhvx
+.. section: Library
+
+In ``importlib.metadata.EntryPoint.pattern``, avoid potential REDoS by
+limiting ambiguity in consecutive whitespace.
+
+..
+
+.. bpo: 46474
+.. date: 2022-01-22-14-45-46
+.. nonce: 2DUC62
+.. section: Library
+
+Removed private method from ``importlib.metadata.Path``. Sync with
+importlib_metadata 4.10.0.
+
+..
+
+.. bpo: 46470
+.. date: 2022-01-22-13-17-35
+.. nonce: MnNhgU
+.. section: Library
+
+Remove unused branch from ``typing._remove_dups_flatten``
+
+..
+
+.. bpo: 46469
+.. date: 2022-01-22-05-05-08
+.. nonce: plUab5
+.. section: Library
+
+:mod:`asyncio` generic classes now return :class:`types.GenericAlias` in
+``__class_getitem__`` instead of the same class.
+
+..
+
+.. bpo: 41906
+.. date: 2022-01-21-18-19-45
+.. nonce: YBaquj
+.. section: Library
+
+Support passing filter instances in the ``filters`` values of ``handlers``
+and ``loggers`` in the dictionary passed to
+:func:`logging.config.dictConfig`.
+
+..
+
+.. bpo: 46422
+.. date: 2022-01-20-10-35-50
+.. nonce: 1UAEHL
+.. section: Library
+
+Use ``dis.Positions`` in ``dis.Instruction`` instead of a regular ``tuple``.
+
+..
+
+.. bpo: 46434
+.. date: 2022-01-20-10-35-10
+.. nonce: geS-aP
+.. section: Library
+
+:mod:`pdb` now gracefully handles ``help`` when :attr:`__doc__` is missing,
+for example when run with pregenerated optimized ``.pyc`` files.
+
+..
+
+.. bpo: 43869
+.. date: 2022-01-18-17-24-21
+.. nonce: NayN12
+.. section: Library
+
+Python uses the same time Epoch on all platforms. Add an explicit unit test
+to ensure that it's the case. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46414
+.. date: 2022-01-17-10-00-02
+.. nonce: Ld0b_y
+.. section: Library
+
+Add :func:`typing.reveal_type`. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 40280
+.. date: 2022-01-16-14-07-14
+.. nonce: LtFHfF
+.. section: Library
+
+:mod:`subprocess` now imports Windows-specific imports when ``msvcrt``
+module is available, and POSIX-specific imports on all other platforms. This
+gives a clean exception when ``_posixsubprocess`` is not available (e.g.
+Emscripten browser target).
+
+..
+
+.. bpo: 40066
+.. date: 2022-01-13-11-41-24
+.. nonce: 1QuVli
+.. section: Library
+
+``IntEnum``, ``IntFlag``, and ``StrEnum`` use the mixed-in type for their
+``str()`` and ``format()`` output.
+
+..
+
+.. bpo: 46316
+.. date: 2022-01-09-15-04-56
+.. nonce: AMTyd0
+.. section: Library
+
+Optimize :meth:`pathlib.Path.iterdir` by removing an unnecessary check for
+special entries.
+
+..
+
+.. bpo: 29688
+.. date: 2022-01-05-03-21-21
+.. nonce: W06bSH
+.. section: Library
+
+Document :meth:`pathlib.Path.absolute` (which has always existed).
+
+..
+
+.. bpo: 43012
+.. date: 2022-01-05-03-09-29
+.. nonce: RVhLIL
+.. section: Library
+
+The pathlib module's obsolete and internal ``_Accessor`` class has been
+removed to prepare the terrain for upcoming enhancements to the module.
+
+..
+
+.. bpo: 46258
+.. date: 2022-01-04-18-05-25
+.. nonce: DYgwRo
+.. section: Library
+
+Speed up :func:`math.isqrt` for small positive integers by replacing two
+division steps with a lookup table.
+
+..
+
+.. bpo: 46242
+.. date: 2022-01-03-16-25-06
+.. nonce: f4l_CL
+.. section: Library
+
+Improve error message when creating a new :class:`enum.Enum` type
+subclassing an existing ``Enum`` with ``_member_names_`` using
+:meth:`enum.Enum.__call__`.
+
+..
+
+.. bpo: 43118
+.. date: 2021-12-29-14-42-09
+.. nonce: BoVi_5
+.. section: Library
+
+Fix a bug in :func:`inspect.signature` that was causing it to fail on some
+subclasses of classes with a ``__text_signature__`` referencing module
+globals. Patch by Weipeng Hong.
+
+..
+
+.. bpo: 26552
+.. date: 2021-12-29-13-42-55
+.. nonce: 1BqeAn
+.. section: Library
+
+Fixed case where failing :func:`asyncio.ensure_future` did not close the
+coroutine. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 21987
+.. date: 2021-12-28-11-55-10
+.. nonce: avBK-p
+.. section: Library
+
+Fix an issue with :meth:`tarfile.TarFile.getmember` getting a directory name
+with a trailing slash.
+
+..
+
+.. bpo: 46124
+.. date: 2021-12-18-18-41-30
+.. nonce: ESPrb7
+.. section: Library
+
+Update :mod:`zoneinfo` to rely on importlib.resources traversable API.
+
+..
+
+.. bpo: 46103
+.. date: 2021-12-16-23-42-54
+.. nonce: LMnZAN
+.. section: Library
+
+Now :func:`inspect.getmembers` only gets :attr:`__bases__` attribute from
+class type. Patch by Weipeng Hong.
+
+..
+
+.. bpo: 46080
+.. date: 2021-12-15-06-29-00
+.. nonce: AuQpLt
+.. section: Library
+
+Fix exception in argparse help text generation if a
+:class:`argparse.BooleanOptionalAction` argument's default is
+``argparse.SUPPRESS`` and it has ``help`` specified. Patch by Felix
+Fontein.
+
+..
+
+.. bpo: 44791
+.. date: 2021-07-31-23-18-50
+.. nonce: 4jFdpO
+.. section: Library
+
+Fix substitution of :class:`~typing.ParamSpec` in
+:data:`~typing.Concatenate` with different parameter expressions.
+Substitution with a list of types returns now a tuple of types. Substitution
+with ``Concatenate`` returns now a ``Concatenate`` with concatenated lists
+of arguments.
+
+..
+
+.. bpo: 46463
+.. date: 2022-01-21-21-33-48
+.. nonce: fBbdTG
+.. section: Documentation
+
+Fixes :file:`escape4chm.py` script used when building the CHM documentation
+file
+
+..
+
+.. bpo: 43478
+.. date: 2022-02-03-00-21-32
+.. nonce: 0nfcam
+.. section: Tests
+
+Mocks can no longer be provided as the specs for other Mocks. As a result,
+an already-mocked object cannot be passed to `mock.Mock()`. This can uncover
+bugs in tests since these Mock-derived Mocks will always pass certain tests
+(e.g. isinstance) and builtin assert functions (e.g.
+assert_called_once_with) will unconditionally pass.
+
+..
+
+.. bpo: 46616
+.. date: 2022-02-02-18-14-38
+.. nonce: URvBtE
+.. section: Tests
+
+Ensures ``test_importlib.test_windows`` cleans up registry keys after
+completion.
+
+..
+
+.. bpo: 44359
+.. date: 2022-02-02-02-24-04
+.. nonce: kPPSmN
+.. section: Tests
+
+test_ftplib now silently ignores socket errors to prevent logging unhandled
+threading exceptions. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46600
+.. date: 2022-02-01-17-13-53
+.. nonce: FMCk8Z
+.. section: Tests
+
+Fix test_gdb.test_pycfunction() for Python built with ``clang -Og``.
+Tolerate inlined functions in the gdb traceback. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46542
+.. date: 2022-01-31-17-34-13
+.. nonce: RTMm1T
+.. section: Tests
+
+Fix a Python crash in test_lib2to3 when using Python built in debug mode:
+limit the recursion limit. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46576
+.. date: 2022-01-29-12-37-53
+.. nonce: -prRaV
+.. section: Tests
+
+test_peg_generator now disables compiler optimization when testing
+compilation of its own C extensions to significantly speed up the testing on
+non-debug builds of CPython.
+
+..
+
+.. bpo: 46542
+.. date: 2022-01-28-01-17-10
+.. nonce: xRLTdj
+.. section: Tests
+
+Fix ``test_json`` tests checking for :exc:`RecursionError`: modify these
+tests to use ``support.infinite_recursion()``. Patch by Victor Stinner.
+
+..
+
+.. bpo: 13886
+.. date: 2022-01-17-13-10-04
+.. nonce: 5mZH4b
+.. section: Tests
+
+Skip test_builtin PTY tests on non-ASCII characters if the readline module
+is loaded. The readline module changes input() behavior, but test_builtin is
+not intented to test the readline module. Patch by Victor Stinner.
+
+..
+
+.. bpo: 40280
+.. date: 2022-01-16-14-11-57
+.. nonce: fNnFfx
+.. section: Tests
+
+Add :func:`test.support.requires_fork` decorators to mark tests that require
+a working :func:`os.fork`.
+
+..
+
+.. bpo: 40280
+.. date: 2022-01-14-23-22-41
+.. nonce: nHLWoD
+.. section: Tests
+
+Add :func:`test.support.requires_subprocess` decorator to mark tests which
+require working :mod:`subprocess` module or ``os.spawn*``. The
+wasm32-emscripten platform has no support for processes.
+
+..
+
+.. bpo: 46126
+.. date: 2021-12-18-22-23-50
+.. nonce: 0LH3Yb
+.. section: Tests
+
+Disable 'descriptions' when running tests internally.
+
+..
+
+.. bpo: 46602
+.. date: 2022-02-02-02-06-07
+.. nonce: 8GaOZ2
+.. section: Build
+
+Tidied up configure.ac so that conftest.c is truncated rather than appended.
+This assists in the case where the 'rm' of conftest.c fails to happen
+between tests. Downstream issues such as a clobbered SOABI can result.
+
+..
+
+.. bpo: 46600
+.. date: 2022-02-01-14-07-37
+.. nonce: NNLnfj
+.. section: Build
+
+Fix the test checking if the C compiler supports ``-Og`` option in the
+``./configure`` script to also use ``-Og`` on clang which supports it. Patch
+by Victor Stinner.
+
+..
+
+.. bpo: 38472
+.. date: 2022-01-26-22-59-12
+.. nonce: RxfLho
+.. section: Build
+
+Fix GCC detection in setup.py when cross-compiling. The C compiler is now
+run with LC_ALL=C. Previously, the detection failed with a German locale.
+
+..
+
+.. bpo: 46513
+.. date: 2022-01-25-12-32-37
+.. nonce: mPm9B4
+.. section: Build
+
+:program:`configure` no longer uses ``AC_C_CHAR_UNSIGNED`` macro and
+``pyconfig.h`` no longer defines reserved symbol ``__CHAR_UNSIGNED__``.
+
+..
+
+.. bpo: 46471
+.. date: 2022-01-22-11-06-23
+.. nonce: 03snrE
+.. section: Build
+
+Use global singletons for single byte bytes objects in deepfreeze.
+
+..
+
+.. bpo: 46443
+.. date: 2022-01-20-05-27-07
+.. nonce: udCVII
+.. section: Build
+
+Deepfreeze now uses cached small integers as it saves some space for common
+small integers.
+
+..
+
+.. bpo: 46429
+.. date: 2022-01-19-04-36-15
+.. nonce: y0OtVL
+.. section: Build
+
+Merge all deep-frozen files into one for space savings. Patch by Kumar
+Aditya.
+
+..
+
+.. bpo: 45569
+.. date: 2022-01-09-11-24-54
+.. nonce: zCIENy
+.. section: Build
+
+The build now defaults to using 30-bit digits for Python integers.
+Previously either 15-bit or 30-bit digits would be selected, depending on
+the platform. 15-bit digits may still be selected using the
+``--enable-big-digits=15`` option to the ``configure`` script, or by
+defining ``PYLONG_BITS_IN_DIGIT`` in ``pyconfig.h``.
+
+..
+
+.. bpo: 45925
+.. date: 2022-01-08-12-43-31
+.. nonce: 38F3NO
+.. section: Build
+
+Update Windows installer to use SQLite 3.37.2.
+
+..
+
+.. bpo: 43112
+.. date: 2021-02-10-17-54-04
+.. nonce: H5Lat6
+.. section: Build
+
+Detect musl libc as a separate SOABI (tagged as ``linux-musl``).
+
+..
+
+.. bpo: 33125
+.. date: 2022-01-25-14-48-39
+.. nonce: 5WyY_J
+.. section: Windows
+
+The traditional EXE/MSI based installer for Windows is now available for
+ARM64
+
+..
+
+.. bpo: 46362
+.. date: 2022-01-13-22-31-09
+.. nonce: f2cuEb
+.. section: Windows
+
+os.path.abspath("C:\CON") is now fixed to return "\\.\CON", not the same
+path. The regression was true of all legacy DOS devices such as COM1, LPT1,
+or NUL.
+
+..
+
+.. bpo: 44934
+.. date: 2021-09-01-10-48-11
+.. nonce: W1xPATH
+.. section: Windows
+
+The installer now offers a command-line only option to add the installation
+directory to the end of :envvar:`PATH` instead of at the start.
+
+..
+
+.. bpo: 45925
+.. date: 2022-01-26-12-04-09
+.. nonce: yBSiYO
+.. section: macOS
+
+Update macOS installer to SQLite 3.37.2.
+
+..
+
+.. bpo: 45296
+.. date: 2022-01-26-19-33-55
+.. nonce: LzZKdU
+.. section: IDLE
+
+Clarify close, quit, and exit in IDLE. In the File menu, 'Close' and 'Exit'
+are now 'Close Window' (the current one) and 'Exit' is now 'Exit IDLE' (by
+closing all windows). In Shell, 'quit()' and 'exit()' mean 'close Shell'.
+If there are no other windows, this also exits IDLE.
+
+..
+
+.. bpo: 40170
+.. date: 2022-01-27-02-51-22
+.. nonce: uPolek
+.. section: C API
+
+Remove the ``PyHeapType_GET_MEMBERS()`` macro. It was exposed in the public
+C API by mistake, it must only be used by Python internally. Use the
+``PyTypeObject.tp_members`` member instead. Patch by Victor Stinner.
+
+..
+
+.. bpo: 40170
+.. date: 2022-01-27-02-37-18
+.. nonce: XxQB0i
+.. section: C API
+
+Move _Py_GetAllocatedBlocks() and _PyObject_DebugMallocStats() private
+functions to the internal C API. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46433
+.. date: 2022-01-19-16-51-54
+.. nonce: Er9ApS
+.. section: C API
+
+The internal function _PyType_GetModuleByDef now correctly handles
+inheritance patterns involving static types.
+
+..
+
+.. bpo: 45459
+.. date: 2021-10-18-16-54-24
+.. nonce: Y1pEZs
+.. section: C API
+
+:c:type:`Py_buffer` and various ``Py_buffer`` related functions are now part
+of the limited API and stable ABI.
+
+..
+
+.. bpo: 14916
+.. date: 2020-09-11-02-50-41
+.. nonce: QN1Y03
+.. section: C API
+
+Fixed bug in the tokenizer that prevented ``PyRun_InteractiveOne`` from
+parsing from the provided FD.
--- /dev/null
+.. bpo: 46940
+.. date: 2022-03-06-20-16-13
+.. nonce: _X47Hx
+.. release date: 2022-03-07
+.. section: Core and Builtins
+
+Avoid overriding :exc:`AttributeError` metadata information for nested
+attribute access calls. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 46927
+.. date: 2022-03-05-12-23-58
+.. nonce: URbHBi
+.. section: Core and Builtins
+
+Include the type's name in the error message for subscripting non-generic
+types.
+
+..
+
+.. bpo: 46921
+.. date: 2022-03-05-00-43-22
+.. nonce: tyuPeB
+.. section: Core and Builtins
+
+Support vectorcall for ``super()``. Patch by Ken Jin.
+
+..
+
+.. bpo: 46841
+.. date: 2022-03-03-14-31-53
+.. nonce: agf-3X
+.. section: Core and Builtins
+
+Fix incorrect handling of inline cache entries when specializing
+:opcode:`BINARY_OP`.
+
+..
+
+.. bpo: 46841
+.. date: 2022-03-03-12-36-15
+.. nonce: apPev2
+.. section: Core and Builtins
+
+Use an oparg to simplify the construction of helpful error messages in
+:opcode:`GET_AWAITABLE`.
+
+..
+
+.. bpo: 46903
+.. date: 2022-03-03-12-02-41
+.. nonce: OzgaFZ
+.. section: Core and Builtins
+
+Make sure that str subclasses can be used as attribute names for instances
+with virtual dictionaries. Fixes regression in 3.11alpha
+
+..
+
+.. bpo: 46841
+.. date: 2022-03-03-10-46-13
+.. nonce: 7CkuZx
+.. section: Core and Builtins
+
+Add more detailed specialization failure stats for :opcode:`COMPARE_OP`
+followed by :opcode:`EXTENDED_ARG`.
+
+..
+
+.. bpo: 46891
+.. date: 2022-03-02-15-04-08
+.. nonce: aIAgTD
+.. section: Core and Builtins
+
+Fix bug introduced during 3.11alpha where subclasses of ``types.ModuleType``
+with ``__slots__`` were not initialized correctly, resulting in an
+interpreter crash.
+
+..
+
+.. bpo: 46841
+.. date: 2022-03-01-17-47-58
+.. nonce: inYQlU
+.. section: Core and Builtins
+
+Use inline caching for :opcode:`LOAD_ATTR`, :opcode:`LOAD_METHOD`, and
+:opcode:`STORE_ATTR`.
+
+..
+
+.. bpo: 46841
+.. date: 2022-02-28-15-46-36
+.. nonce: MDQoty
+.. section: Core and Builtins
+
+Use inline cache for :opcode:`BINARY_SUBSCR`.
+
+..
+
+.. bpo: 46841
+.. date: 2022-02-28-12-01-04
+.. nonce: r60AMJ
+.. section: Core and Builtins
+
+Use inline caching for :opcode:`COMPARE_OP`.
+
+..
+
+.. bpo: 46864
+.. date: 2022-02-26-19-26-36
+.. nonce: EmLgFp
+.. section: Core and Builtins
+
+Deprecate ``PyBytesObject.ob_shash``. It will be removed in Python 3.13.
+
+..
+
+.. bpo: 46841
+.. date: 2022-02-25-15-18-40
+.. nonce: tmLpgC
+.. section: Core and Builtins
+
+Use inline caching for :opcode:`UNPACK_SEQUENCE`.
+
+..
+
+.. bpo: 46845
+.. date: 2022-02-25-14-57-21
+.. nonce: TUvaMG
+.. section: Core and Builtins
+
+Reduces dict size by removing hash value from hash table when all inserted
+keys are Unicode. For example, ``sys.getsizeof(dict.fromkeys("abcdefg"))``
+becomes 272 bytes from 352 bytes on 64bit platform.
+
+..
+
+.. bpo: 46841
+.. date: 2022-02-25-13-18-18
+.. nonce: 86QiQu
+.. section: Core and Builtins
+
+Use inline cache for :opcode:`LOAD_GLOBAL`.
+
+..
+
+.. bpo: 46852
+.. date: 2022-02-25-02-01-42
+.. nonce: _3zg8D
+.. section: Core and Builtins
+
+Rename the private undocumented ``float.__set_format__()`` method to
+``float.__setformat__()`` to fix a typo introduced in Python 3.7. The method
+is only used by test_float. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46852
+.. date: 2022-02-25-01-42-45
+.. nonce: nkRDvV
+.. section: Core and Builtins
+
+Remove the undocumented private ``float.__set_format__()`` method,
+previously known as ``float.__setformat__()`` in Python 3.7. Its docstring
+said: "You probably don't want to use this function. It exists mainly to be
+used in Python's test suite." Patch by Victor Stinner.
+
+..
+
+.. bpo: 40116
+.. date: 2022-02-24-16-34-17
+.. nonce: AeVGG2
+.. section: Core and Builtins
+
+Fix regression that dict.update(other) may don't respect iterate order of
+other when other is key sharing dict.
+
+..
+
+.. bpo: 46712
+.. date: 2022-02-24-07-50-43
+.. nonce: pw7vQV
+.. section: Core and Builtins
+
+Share global string identifiers in deep-frozen modules.
+
+..
+
+.. bpo: 46430
+.. date: 2022-02-24-07-33-29
+.. nonce: c91TAg
+.. section: Core and Builtins
+
+Fix memory leak in interned strings of deep-frozen modules.
+
+..
+
+.. bpo: 46841
+.. date: 2022-02-23-18-17-30
+.. nonce: fns8HB
+.. section: Core and Builtins
+
+Store :opcode:`BINARY_OP` caches inline using a new :opcode:`CACHE`
+instruction.
+
+..
+
+.. bpo: 45107
+.. date: 2022-02-23-15-26-02
+.. nonce: axcgHn
+.. section: Core and Builtins
+
+Specialize ``LOAD_METHOD`` for instances with a dict.
+
+..
+
+.. bpo: 44337
+.. date: 2022-02-22-17-19-45
+.. nonce: XA-egu
+.. section: Core and Builtins
+
+Reduce the memory usage of specialized :opcode:`LOAD_ATTR` and
+:opcode:`STORE_ATTR` instructions.
+
+..
+
+.. bpo: 46729
+.. date: 2022-02-22-17-18-36
+.. nonce: ZwGTFq
+.. section: Core and Builtins
+
+Add number of sub-exceptions to :meth:`BaseException.__str__`.
+
+..
+
+.. bpo: 45885
+.. date: 2022-02-22-15-48-32
+.. nonce: W2vkaI
+.. section: Core and Builtins
+
+Don't un-adapt :opcode:`COMPARE_OP` when collecting specialization stats.
+
+..
+
+.. bpo: 46329
+.. date: 2022-02-22-14-03-56
+.. nonce: RX_AzJ
+.. section: Core and Builtins
+
+Fix specialization stats gathering for :opcode:`PRECALL` instructions.
+
+..
+
+.. bpo: 46794
+.. date: 2022-02-22-12-07-53
+.. nonce: 6WvJ9o
+.. section: Core and Builtins
+
+Bump up the libexpat version into 2.4.6
+
+..
+
+.. bpo: 46823
+.. date: 2022-02-22-05-14-25
+.. nonce: z9NZC9
+.. section: Core and Builtins
+
+Implement a specialized combined opcode
+``LOAD_FAST__LOAD_ATTR_INSTANCE_VALUE``. Patch by Dennis Sweeney.
+
+..
+
+.. bpo: 46820
+.. date: 2022-02-21-21-55-23
+.. nonce: 4RfUZh
+.. section: Core and Builtins
+
+Fix parsing a numeric literal immediately (without spaces) followed by "not
+in" keywords, like in ``1not in x``. Now the parser only emits a warning,
+not a syntax error.
+
+..
+
+.. bpo: 46329
+.. date: 2022-02-21-10-29-20
+.. nonce: cbkt7u
+.. section: Core and Builtins
+
+Move ``KW_NAMES`` before ``PRECALL`` instruction in call sequence. Change
+``operand`` of ``CALL`` to match ``PRECALL`` for easier specialization.
+
+..
+
+.. bpo: 46808
+.. date: 2022-02-20-23-10-14
+.. nonce: vouNSF
+.. section: Core and Builtins
+
+Remove the ``NEXT_BLOCK`` macro from compile.c, and make the compiler
+automatically generate implicit blocks when they are needed.
+
+..
+
+.. bpo: 46329
+.. date: 2022-02-16-13-15-16
+.. nonce: 8aIuz9
+.. section: Core and Builtins
+
+Add ``PUSH_NULL`` instruction. This is used as a prefix when evaluating a
+callable, so that the stack has the same shape for methods and other calls.
+``PRECALL_FUNCTION`` and ``PRECALL_METHOD`` are merged into a single
+``PRECALL`` instruction.
+
+There is no change in semantics.
+
+..
+
+.. bpo: 46762
+.. date: 2022-02-15-20-26-46
+.. nonce: 1H7vab
+.. section: Core and Builtins
+
+Fix an assert failure in debug builds when a '<', '>', or '=' is the last
+character in an f-string that's missing a closing right brace.
+
+..
+
+.. bpo: 46730
+.. date: 2022-02-14-21-04-43
+.. nonce: rYJ1w5
+.. section: Core and Builtins
+
+Message of AttributeError caused by getting, setting or deleting a property
+without the corresponding function now mentions that the attribute is in
+fact a property and also specifies type of the class that it belongs to.
+
+..
+
+.. bpo: 46724
+.. date: 2022-02-14-14-44-06
+.. nonce: jym_K6
+.. section: Core and Builtins
+
+Make sure that all backwards jumps use the ``JUMP_ABSOLUTE`` instruction,
+rather than ``JUMP_FORWARD`` with an argument of ``(2**32)+offset``.
+
+..
+
+.. bpo: 46732
+.. date: 2022-02-12-11-16-40
+.. nonce: 3Z_qxd
+.. section: Core and Builtins
+
+Correct the docstring for the :meth:`__bool__` method. Patch by Jelle
+Zijlstra.
+
+..
+
+.. bpo: 46072
+.. date: 2022-02-11-13-47-58
+.. nonce: PDS6Ke
+.. section: Core and Builtins
+
+Add more detailed specialization failure statistics for :opcode:`BINARY_OP`.
+
+..
+
+.. bpo: 46707
+.. date: 2022-02-10-03-13-18
+.. nonce: xeSEh0
+.. section: Core and Builtins
+
+Avoid potential exponential backtracking when producing some syntax errors
+involving lots of brackets. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 46323
+.. date: 2022-02-10-02-29-12
+.. nonce: HK_cs0
+.. section: Core and Builtins
+
+:mod:`ctypes` now allocates memory on the stack instead of on the heap to
+pass arguments while calling a Python callback function. Patch by Dong-hee
+Na.
+
+..
+
+.. bpo: 45923
+.. date: 2022-02-09-20-21-43
+.. nonce: tJ4gDX
+.. section: Core and Builtins
+
+Add a quickened form of :opcode:`RESUME` that skips quickening checks.
+
+..
+
+.. bpo: 46702
+.. date: 2022-02-09-16-36-11
+.. nonce: LcaEuC
+.. section: Core and Builtins
+
+Specialize :opcode:`UNPACK_SEQUENCE` for :class:`tuple` and :class:`list`
+unpackings.
+
+..
+
+.. bpo: 46072
+.. date: 2022-02-07-14-38-54
+.. nonce: 6ebLyN
+.. section: Core and Builtins
+
+Opcode pair stats are now gathered with ``--enable-pystats``. Defining
+``DYNAMIC_EXECUTION_PROFILE`` or ``DXPAIRS`` no longer has any effect.
+
+..
+
+.. bpo: 46675
+.. date: 2022-02-07-14-33-45
+.. nonce: ZPbdMp
+.. section: Core and Builtins
+
+Allow more than 16 items in a split dict before it is combined. The limit is
+now 254.
+
+..
+
+.. bpo: 40479
+.. date: 2022-02-06-23-08-30
+.. nonce: zED3Zu
+.. section: Core and Builtins
+
+Add a missing call to ``va_end()`` in ``Modules/_hashopenssl.c``.
+
+..
+
+.. bpo: 46323
+.. date: 2022-02-05-14-46-21
+.. nonce: FC1OJg
+.. section: Core and Builtins
+
+Use :c:func:`PyObject_Vectorcall` while calling ctypes callback function.
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 46615
+.. date: 2022-02-04-04-33-18
+.. nonce: puArY9
+.. section: Core and Builtins
+
+When iterating over sets internally in ``setobject.c``, acquire strong
+references to the resulting items from the set. This prevents crashes in
+corner-cases of various set operations where the set gets mutated.
+
+..
+
+.. bpo: 45828
+.. date: 2022-01-27-14-20-18
+.. nonce: kzk4fl
+.. section: Core and Builtins
+
+The bytecode compiler now attempts to apply runtime stack manipulations at
+compile-time (whenever it is feasible to do so).
+
+..
+
+.. bpo: 30496
+.. date: 2022-01-09-11-59-04
+.. nonce: KvuuGT
+.. section: Core and Builtins
+
+Fixed a minor portability issue in the implementation of
+:c:func:`PyLong_FromLong`, and added a fast path for single-digit integers
+to :c:func:`PyLong_FromLongLong`.
+
+..
+
+.. bpo: 25707
+.. date: 2022-03-05-09-43-53
+.. nonce: gTlclP
+.. section: Library
+
+Fixed a file leak in :func:`xml.etree.ElementTree.iterparse` when the
+iterator is not exhausted. Patch by Jacob Walls.
+
+..
+
+.. bpo: 46877
+.. date: 2022-03-03-06-58-52
+.. nonce: BKgjpD
+.. section: Library
+
+Export :func:`unittest.doModuleCleanups` in :mod:`unittest`. Patch by Kumar
+Aditya.
+
+..
+
+.. bpo: 46848
+.. date: 2022-03-01-01-16-13
+.. nonce: BB01Fr
+.. section: Library
+
+For performance, use the optimized string-searching implementations from
+:meth:`~bytes.find` and :meth:`~bytes.rfind` for :meth:`~mmap.find` and
+:meth:`~mmap.rfind`.
+
+..
+
+.. bpo: 46736
+.. date: 2022-02-24-01-49-38
+.. nonce: NJcoWO
+.. section: Library
+
+:class:`~http.server.SimpleHTTPRequestHandler` now uses HTML5 grammar. Patch
+by Dong-hee Na.
+
+..
+
+.. bpo: 44886
+.. date: 2022-02-23-00-55-59
+.. nonce: I40Mbr
+.. section: Library
+
+Inherit asyncio proactor datagram transport from
+:class:`asyncio.DatagramTransport`.
+
+..
+
+.. bpo: 46827
+.. date: 2022-02-22-15-08-30
+.. nonce: hvj38S
+.. section: Library
+
+Support UDP sockets in :meth:`asyncio.loop.sock_connect` for selector-based
+event loops. Patch by Thomas Grainger.
+
+..
+
+.. bpo: 46811
+.. date: 2022-02-20-21-03-31
+.. nonce: 8BxgdQ
+.. section: Library
+
+Make test suite support Expat >=2.4.5
+
+..
+
+.. bpo: 46252
+.. date: 2022-02-20-12-59-46
+.. nonce: KG1SqA
+.. section: Library
+
+Raise :exc:`TypeError` if :class:`ssl.SSLSocket` is passed to
+transport-based APIs.
+
+..
+
+.. bpo: 46784
+.. date: 2022-02-18-22-10-30
+.. nonce: SVOQJx
+.. section: Library
+
+Fix libexpat symbols collisions with user dynamically loaded or statically
+linked libexpat in embedded Python.
+
+..
+
+.. bpo: 46786
+.. date: 2022-02-18-12-10-26
+.. nonce: P0xRvS
+.. section: Library
+
+The HTML serialisation in xml.etree.ElementTree now writes ``embed``,
+``source``, ``track`` and ``wbr`` as empty tags, as defined in HTML 5.
+
+..
+
+.. bpo: 39327
+.. date: 2022-02-17-13-10-50
+.. nonce: ytIT7Z
+.. section: Library
+
+:func:`shutil.rmtree` can now work with VirtualBox shared folders when
+running from the guest operating-system.
+
+..
+
+.. bpo: 45390
+.. date: 2022-02-17-11-00-16
+.. nonce: sVhG6M
+.. section: Library
+
+Propagate :exc:`asyncio.CancelledError` message from inner task to outer
+awaiter.
+
+..
+
+.. bpo: 46756
+.. date: 2022-02-15-11-57-53
+.. nonce: AigSPi
+.. section: Library
+
+Fix a bug in :meth:`urllib.request.HTTPPasswordMgr.find_user_password` and
+:meth:`urllib.request.HTTPPasswordMgrWithPriorAuth.is_authenticated` which
+allowed to bypass authorization. For example, access to URI
+``example.org/foobar`` was allowed if the user was authorized for URI
+``example.org/foo``.
+
+..
+
+.. bpo: 46737
+.. date: 2022-02-15-07-39-43
+.. nonce: 6Pnblt
+.. section: Library
+
+:func:`random.gauss` and :func:`random.normalvariate` now have default
+arguments.
+
+..
+
+.. bpo: 46752
+.. date: 2022-02-14-21-21-49
+.. nonce: m6ldTm
+.. section: Library
+
+Add task groups to asyncio (structured concurrency, inspired by Trio's
+nurseries). This also introduces a change to task cancellation, where a
+cancelled task can't be cancelled again until it calls .uncancel().
+
+..
+
+.. bpo: 46724
+.. date: 2022-02-11-20-41-17
+.. nonce: eU52_N
+.. section: Library
+
+Fix :mod:`dis` behavior on negative jump offsets.
+
+..
+
+.. bpo: 46333
+.. date: 2022-02-11-20-01-49
+.. nonce: PMTBY9
+.. section: Library
+
+The :meth:`__repr__` method of :class:`typing.ForwardRef` now includes the
+``module`` parameter of :class:`typing.ForwardRef` when it is set.
+
+..
+
+.. bpo: 46643
+.. date: 2022-02-09-22-40-11
+.. nonce: aBlIx1
+.. section: Library
+
+In :func:`typing.get_type_hints`, support evaluating stringified
+``ParamSpecArgs`` and ``ParamSpecKwargs`` annotations. Patch by Gregory
+Beauregard.
+
+..
+
+.. bpo: 45863
+.. date: 2022-02-09-00-53-23
+.. nonce: zqQXVv
+.. section: Library
+
+When the :mod:`tarfile` module creates a pax format archive, it will put an
+integer representation of timestamps in the ustar header (if possible) for
+the benefit of older unarchivers, in addition to the existing full-precision
+timestamps in the pax extended header.
+
+..
+
+.. bpo: 46066
+.. date: 2022-02-08-16-42-20
+.. nonce: m32Hl0
+.. section: Library
+
+Deprecate kwargs-based syntax for :class:`typing.TypedDict` definitions. It
+had confusing semantics when specifying totality, and was largely unused.
+Patch by Jingchen Ye.
+
+..
+
+.. bpo: 46676
+.. date: 2022-02-07-19-20-42
+.. nonce: 3Aws1o
+.. section: Library
+
+Make :data:`typing.ParamSpec` args and kwargs equal to themselves. Patch by
+Gregory Beauregard.
+
+..
+
+.. bpo: 46323
+.. date: 2022-02-07-13-27-59
+.. nonce: 7UENAj
+.. section: Library
+
+``ctypes.CFUNCTYPE()`` and ``ctypes.WINFUNCTYPE()`` now fail to create the
+type if its ``_argtypes_`` member contains too many arguments. Previously,
+the error was only raised when calling a function. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46672
+.. date: 2022-02-07-13-15-16
+.. nonce: 4swIjx
+.. section: Library
+
+Fix ``NameError`` in :func:`asyncio.gather` when initial type check fails.
+
+..
+
+.. bpo: 46659
+.. date: 2022-02-06-19-13-02
+.. nonce: q-vNL9
+.. section: Library
+
+The :class:`calendar.LocaleTextCalendar` and
+:class:`calendar.LocaleHTMLCalendar` classes now use
+:func:`locale.getlocale`, instead of using :func:`locale.getdefaultlocale`,
+if no locale is specified. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46659
+.. date: 2022-02-06-17-57-45
+.. nonce: zTmkoQ
+.. section: Library
+
+The :func:`locale.getdefaultlocale` function is deprecated and will be
+removed in Python 3.13. Use :func:`locale.setlocale`,
+:func:`locale.getpreferredencoding(False) <locale.getpreferredencoding>` and
+:func:`locale.getlocale` functions instead. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46655
+.. date: 2022-02-06-08-54-03
+.. nonce: DiLzYv
+.. section: Library
+
+In :func:`typing.get_type_hints`, support evaluating bare stringified
+``TypeAlias`` annotations. Patch by Gregory Beauregard.
+
+..
+
+.. bpo: 45948
+.. date: 2022-02-05-18-22-05
+.. nonce: w4mCnE
+.. section: Library
+
+Fixed a discrepancy in the C implementation of the
+:mod:`xml.etree.ElementTree` module. Now, instantiating an
+:class:`xml.etree.ElementTree.XMLParser` with a ``target=None`` keyword
+provides a default :class:`xml.etree.ElementTree.TreeBuilder` target as the
+Python implementation does.
+
+..
+
+.. bpo: 46626
+.. date: 2022-02-03-10-22-42
+.. nonce: r2e-n_
+.. section: Library
+
+Expose Linux's ``IP_BIND_ADDRESS_NO_PORT`` option in :mod:`socket`.
+
+..
+
+.. bpo: 46521
+.. date: 2022-02-01-19-34-28
+.. nonce: IMUIrs
+.. section: Library
+
+Fix a bug in the :mod:`codeop` module that was incorrectly identifying
+invalid code involving string quotes as valid code.
+
+..
+
+.. bpo: 46571
+.. date: 2022-02-01-11-21-34
+.. nonce: L40xUJ
+.. section: Library
+
+Improve :func:`typing.no_type_check`.
+
+Now it does not modify external classes and functions. We also now correctly
+mark classmethods as not to be type checked.
+
+..
+
+.. bpo: 46400
+.. date: 2022-01-30-15-16-12
+.. nonce: vweUiO
+.. section: Library
+
+expat: Update libexpat from 2.4.1 to 2.4.4
+
+..
+
+.. bpo: 46556
+.. date: 2022-01-27-23-20-30
+.. nonce: tlpAgS
+.. section: Library
+
+Deprecate undocumented support for using a :class:`pathlib.Path` object as a
+context manager.
+
+..
+
+.. bpo: 46534
+.. date: 2022-01-26-18-06-08
+.. nonce: vhzUM4
+.. section: Library
+
+Implement :pep:`673` :class:`typing.Self`. Patch by James Hilton-Balfe.
+
+..
+
+.. bpo: 46522
+.. date: 2022-01-25-15-31-04
+.. nonce: tYAlX4
+.. section: Library
+
+Make various module ``__getattr__`` AttributeErrors more closely match a
+typical AttributeError
+
+..
+
+.. bpo: 46475
+.. date: 2022-01-23-15-35-07
+.. nonce: UCe18S
+.. section: Library
+
+Add :data:`typing.Never` and :func:`typing.assert_never`. Patch by Jelle
+Zijlstra.
+
+..
+
+.. bpo: 46333
+.. date: 2022-01-11-15-54-15
+.. nonce: B1faiF
+.. section: Library
+
+The :meth:`__eq__` and :meth:`__hash__` methods of
+:class:`typing.ForwardRef` now honor the ``module`` parameter of
+:class:`typing.ForwardRef`. Forward references from different modules are
+now differentiated.
+
+..
+
+.. bpo: 46246
+.. date: 2022-01-07-13-27-53
+.. nonce: CTLx32
+.. section: Library
+
+Add missing ``__slots__`` to ``importlib.metadata.DeprecatedList``. Patch by
+Arie Bovenberg.
+
+..
+
+.. bpo: 46232
+.. date: 2022-01-03-09-46-44
+.. nonce: s0KlyI
+.. section: Library
+
+The :mod:`ssl` module now handles certificates with bit strings in DN
+correctly.
+
+..
+
+.. bpo: 46195
+.. date: 2021-12-30-21-38-51
+.. nonce: jFKGq_
+.. section: Library
+
+:func:`typing.get_type_hints` no longer adds ``Optional`` to parameters with
+``None`` as a default. This aligns to changes to PEP 484 in
+https://github.com/python/peps/pull/689
+
+..
+
+.. bpo: 31369
+.. date: 2021-12-27-18-28-44
+.. nonce: b9yM94
+.. section: Library
+
+Add :class:`~re.RegexFlag` to ``re.__all__`` and documented it. Add
+:data:`~re.RegexFlag.NOFLAG` to indicate no flags being set.
+
+..
+
+.. bpo: 45898
+.. date: 2021-11-26-10-46-09
+.. nonce: UIfhsb
+.. section: Library
+
+:mod:`ctypes` no longer defines ``ffi_type_*`` symbols in ``cfield.c``. The
+symbols have been provided by libffi for over a decade.
+
+..
+
+.. bpo: 44953
+.. date: 2021-08-19-09-29-43
+.. nonce: 27ZyUd
+.. section: Library
+
+Calling ``operator.itemgetter`` objects and ``operator.attrgetter`` objects
+is now faster due to use of the vectorcall calling convention.
+
+..
+
+.. bpo: 44289
+.. date: 2021-06-02-19-47-46
+.. nonce: xC5kuV
+.. section: Library
+
+Fix an issue with :meth:`~tarfile.is_tarfile` method when using *fileobj*
+argument: position in the *fileobj* was advanced forward which made it
+unreadable with :meth:`tarfile.TarFile.open`.
+
+..
+
+.. bpo: 44011
+.. date: 2021-05-02-23-44-21
+.. nonce: hd8iUO
+.. section: Library
+
+Reimplement SSL/TLS support in asyncio, borrow the implementation from
+uvloop library.
+
+..
+
+.. bpo: 41086
+.. date: 2020-06-23-01-50-24
+.. nonce: YnOvpS
+.. section: Library
+
+Make the :class:`configparser.ConfigParser` constructor raise
+:exc:`TypeError` if the ``interpolation`` parameter is not of type
+:class:`configparser.Interpolation`
+
+..
+
+.. bpo: 29418
+.. date: 2020-03-31-20-53-11
+.. nonce: 8Qa9cQ
+.. section: Library
+
+Implement :func:`inspect.ismethodwrapper` and fix :func:`inspect.isroutine`
+for cases where methodwrapper is given. Patch by Hakan Çelik.
+
+..
+
+.. bpo: 14156
+.. date: 2019-05-07-14-25-45
+.. nonce: 0FaHXE
+.. section: Library
+
+argparse.FileType now supports an argument of '-' in binary mode, returning
+the .buffer attribute of sys.stdin/sys.stdout as appropriate. Modes
+including 'x' and 'a' are treated equivalently to 'w' when argument is '-'.
+Patch contributed by Josh Rosenberg
+
+..
+
+.. bpo: 42238
+.. date: 2022-02-03-11-24-59
+.. nonce: yJcMa8
+.. section: Documentation
+
+``Doc/tools/rstlint.py`` has moved to its own repository and is now packaged
+on PyPI as ``sphinx-lint``.
+
+..
+
+.. bpo: 46913
+.. date: 2022-03-03-17-36-24
+.. nonce: vxETIE
+.. section: Tests
+
+Fix test_faulthandler.test_sigfpe() if Python is built with undefined
+behavior sanitizer (UBSAN): disable UBSAN on the faulthandler_sigfpe()
+function. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46760
+.. date: 2022-02-16-10-38-18
+.. nonce: O3ovJo
+.. section: Tests
+
+Remove bytecode offsets from expected values in test.test_dis module.
+Reduces the obstacles to modifying the VM or compiler.
+
+..
+
+.. bpo: 46708
+.. date: 2022-02-10-14-33-47
+.. nonce: avLfCb
+.. section: Tests
+
+Prevent default asyncio event loop policy modification warning after
+``test_asyncio`` execution.
+
+..
+
+.. bpo: 46678
+.. date: 2022-02-07-12-40-45
+.. nonce: zfOrgL
+.. section: Tests
+
+The function ``make_legacy_pyc`` in ``Lib/test/support/import_helper.py`` no
+longer fails when ``PYTHONPYCACHEPREFIX`` is set to a directory on a
+different device from where tempfiles are stored.
+
+..
+
+.. bpo: 46623
+.. date: 2022-02-03-09-45-26
+.. nonce: vxzuhV
+.. section: Tests
+
+Skip test_pair() and test_speech128() of test_zlib on s390x since they fail
+if zlib uses the s390x hardware accelerator. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46860
+.. date: 2022-02-25-16-19-40
+.. nonce: jfciLG
+.. section: Build
+
+Respect `--with-suffix` when building on case-insensitive file systems.
+
+..
+
+.. bpo: 46656
+.. date: 2022-02-25-00-51-16
+.. nonce: MD783M
+.. section: Build
+
+Building Python now requires a C11 compiler. Optional C11 features are not
+required.
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 46656
+.. date: 2022-02-06-14-04-20
+.. nonce: ajJjkh
+.. section: Build
+
+Building Python now requires support for floating point Not-a-Number (NaN):
+remove the ``Py_NO_NAN`` macro. Patch by by Victor Stinner.
+
+..
+
+.. bpo: 46640
+.. date: 2022-02-04-21-26-50
+.. nonce: HXUmQp
+.. section: Build
+
+Building Python now requires a C99 ``<math.h>`` header file providing a
+``NAN`` constant, or the ``__builtin_nan()`` built-in function. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 46608
+.. date: 2022-02-02-11-26-46
+.. nonce: cXH9po
+.. section: Build
+
+Exclude marshalled-frozen data if deep-freezing to save 300 KB disk space.
+This includes adding a new ``is_package`` field to :c:struct:`_frozen`.
+Patch by Kumar Aditya.
+
+..
+
+.. bpo: 40280
+.. date: 2022-01-31-15-15-08
+.. nonce: r1AYNW
+.. section: Build
+
+Fix wasm32-emscripten test failures and platform issues. - Disable syscalls
+that are not supported or don't work, e.g. wait, getrusage, prlimit,
+mkfifo, mknod, setres[gu]id, setgroups. - Use fd_count to cound open fds. -
+Add more checks for subprocess and fork. - Add workarounds for missing
+_multiprocessing and failing socket.accept(). - Enable bzip2. - Disable
+large file support. - Disable signal.alarm.
+
+..
+
+.. bpo: 46430
+.. date: 2022-01-19-11-08-32
+.. nonce: k403m_
+.. section: Build
+
+Intern strings in deep-frozen modules. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 46744
+.. date: 2022-03-04-00-24-55
+.. nonce: tneWFr
+.. section: Windows
+
+The default all users install directory for ARM64 is now under the native
+``Program Files`` folder, rather than ``Program Files (Arm)`` which is
+intended for ARM (32-bit) files.
+
+..
+
+.. bpo: 46567
+.. date: 2022-02-25-01-22-31
+.. nonce: 37WEue
+.. section: Windows
+
+Adds Tcl and Tk support for Windows ARM64. This also adds IDLE to the
+installation.
+
+..
+
+.. bpo: 46638
+.. date: 2022-02-04-18-02-33
+.. nonce: mSJOSX
+.. section: Windows
+
+Ensures registry virtualization is consistently disabled. For 3.10 and
+earlier, it remains enabled (some registry writes are protected), while for
+3.11 and later it is disabled (registry modifications affect all
+applications).
+
+..
+
+.. bpo: 46630
+.. date: 2022-02-03-15-47-53
+.. nonce: tREOjo
+.. section: IDLE
+
+Make query dialogs on Windows start with a cursor in the entry box.
+
+..
+
+.. bpo: 45447
+.. date: 2021-10-14-16-55-03
+.. nonce: FhiH5P
+.. section: IDLE
+
+Apply IDLE syntax highlighting to `.pyi` files. Patch by Alex Waygood and
+Terry Jan Reedy.
+
+..
+
+.. bpo: 46748
+.. date: 2022-02-24-13-13-16
+.. nonce: aG1zb3
+.. section: C API
+
+Python's public headers no longer import ``<stdbool.h>``, leaving code that
+embedd/extends Python free to define ``bool``, ``true`` and ``false``.
+
+..
+
+.. bpo: 46836
+.. date: 2022-02-23-16-13-17
+.. nonce: ZYyPF_
+.. section: C API
+
+Move the :c:type:`PyFrameObject` type definition (``struct _frame``) to the
+internal C API ``pycore_frame.h`` header file. Patch by Victor Stinner.
+
+..
+
+.. bpo: 45459
+.. date: 2022-02-07-18-47-00
+.. nonce: 0FCWM8
+.. section: C API
+
+Rename ``Include/buffer.h`` header file to ``Include/pybuffer.h`` to avoid
+conflits with projects having an existing ``buffer.h`` header file. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 45412
+.. date: 2022-02-06-20-14-21
+.. nonce: XJVaGW
+.. section: C API
+
+Remove the ``HAVE_PY_SET_53BIT_PRECISION`` macro (moved to the internal C
+API). Patch by Victor Stinner.
+
+..
+
+.. bpo: 46613
+.. date: 2022-02-02-17-58-49
+.. nonce: __ZdpH
+.. section: C API
+
+Added function :c:func:`PyType_GetModuleByDef`, which allows accesss to
+module state when a method's defining class is not available.
--- /dev/null
+.. bpo: 47212
+.. date: 2022-04-05-11-29-21
+.. nonce: leF4pz
+.. release date: 2022-04-05
+.. section: Core and Builtins
+
+Raise :exc:`IndentationError` instead of :exc:`SyntaxError` for a bare
+``except`` with no following indent. Improve :exc:`SyntaxError` locations
+for an un-parenthesized generator used as arguments. Patch by Matthieu
+Dartiailh.
+
+..
+
+.. bpo: 47186
+.. date: 2022-04-04-17-41-10
+.. nonce: aQWoSh
+.. section: Core and Builtins
+
+Replace :opcode:`JUMP_IF_NOT_EG_MATCH` by :opcode:`CHECK_EG_MATCH` + jump.
+
+..
+
+.. bpo: 47176
+.. date: 2022-04-02-14-32-21
+.. nonce: kTygYI
+.. section: Core and Builtins
+
+Emscripten builds cannot handle signals in the usual way due to platform
+limitations. Python can now handle signals. To use, set
+Module.Py_EmscriptenSignalBuffer to be a single byte SharedArrayBuffer and
+set Py_EMSCRIPTEN_SIGNAL_HANDLING to 1. Writing a number into the
+SharedArrayBuffer will cause the corresponding signal to be raised into the
+Python thread.
+
+..
+
+.. bpo: 47186
+.. date: 2022-04-01-11-53-59
+.. nonce: RBCPk8
+.. section: Core and Builtins
+
+Replace :opcode:`JUMP_IF_NOT_EXC_MATCH` by :opcode:`CHECK_EXC_MATCH` + jump.
+
+..
+
+.. bpo: 47120
+.. date: 2022-03-31-21-43-57
+.. nonce: NgxQbA
+.. section: Core and Builtins
+
+Replace the absolute jump opcode :opcode:`JUMP_NO_INTERRUPT` by the relative
+:opcode:`JUMP_BACKWARD_NO_INTERRUPT`.
+
+..
+
+.. bpo: 46841
+.. date: 2022-03-31-15-57-42
+.. nonce: U-25Z6
+.. section: Core and Builtins
+
+Avoid unnecessary allocations when comparing code objects.
+
+..
+
+.. bpo: 47182
+.. date: 2022-03-31-15-37-02
+.. nonce: e_4SsC
+.. section: Core and Builtins
+
+Fix a crash when using a named unicode character like ``"\N{digit nine}"``
+after the main interpreter has been initialized a second time.
+
+..
+
+.. bpo: 47162
+.. date: 2022-03-30-13-13-25
+.. nonce: yDJMUm
+.. section: Core and Builtins
+
+WebAssembly cannot deal with bad function pointer casts (different count or
+types of arguments). Python can now use call trampolines to mitigate the
+problem. Define :c:macro:`PY_CALL_TRAMPOLINE` to enable call trampolines.
+
+..
+
+.. bpo: 46775
+.. date: 2022-03-30-02-36-25
+.. nonce: e3Oxqf
+.. section: Core and Builtins
+
+Some Windows system error codes(>= 10000) are now mapped into the correct
+errno and may now raise a subclass of :exc:`OSError`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 47129
+.. date: 2022-03-26-16-35-57
+.. nonce: hDg2Vt
+.. section: Core and Builtins
+
+Improve error messages in f-string syntax errors concerning empty
+expressions.
+
+..
+
+.. bpo: 47117
+.. date: 2022-03-26-15-45-57
+.. nonce: 60W6GQ
+.. section: Core and Builtins
+
+Fix a crash if we fail to decode characters in interactive mode if the
+tokenizer buffers are uninitialized. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 47127
+.. date: 2022-03-26-12-21-53
+.. nonce: Mh86RB
+.. section: Core and Builtins
+
+Speed up calls to c functions with keyword arguments by 25% with
+specialization. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 47120
+.. date: 2022-03-25-21-51-10
+.. nonce: 9YJ-Xw
+.. section: Core and Builtins
+
+Replaced :opcode:`JUMP_ABSOLUTE` by the relative jump
+:opcode:`JUMP_BACKWARD`.
+
+..
+
+.. bpo: 42197
+.. date: 2022-03-22-15-12-28
+.. nonce: SwrrFO
+.. section: Core and Builtins
+
+:c:func:`PyFrame_FastToLocalsWithError` and :c:func:`PyFrame_LocalsToFast`
+are no longer called during profiling nor tracing. C code can access the
+``f_locals`` attribute of :c:type:`PyFrameObject` by calling
+:c:func:`PyFrame_GetLocals`.
+
+..
+
+.. bpo: 47070
+.. date: 2022-03-19-21-50-59
+.. nonce: wPcsQh
+.. section: Core and Builtins
+
+Improve performance of ``array_inplace_repeat`` by reducing the number of
+invocations of ``memcpy``. Refactor the ``repeat`` and inplace ``repeat``
+methods of ``array``, ``bytes``, ``bytearray`` and ``unicodeobject`` to use
+the common ``_PyBytes_Repeat``.
+
+..
+
+.. bpo: 47053
+.. date: 2022-03-17-22-47-29
+.. nonce: QAXk8Q
+.. section: Core and Builtins
+
+Reduce de-optimization in the specialized ``BINARY_OP_INPLACE_ADD_UNICODE``
+opcode.
+
+..
+
+.. bpo: 47045
+.. date: 2022-03-17-16-25-57
+.. nonce: xQgHul
+.. section: Core and Builtins
+
+Remove the ``f_state`` field from the _PyInterpreterFrame struct. Add the
+``owner`` field to the _PyInterpreterFrame struct to make ownership explicit
+to simplify clearing and deallocing frames and generators.
+
+..
+
+.. bpo: 46968
+.. date: 2022-03-17-14-22-23
+.. nonce: 4gz4NA
+.. section: Core and Builtins
+
+Check for the existence of the "sys/auxv.h" header in :mod:`faulthandler` to
+avoid compilation problems in systems where this header doesn't exist. Patch
+by Pablo Galindo
+
+..
+
+.. bpo: 46329
+.. date: 2022-03-16-12-19-25
+.. nonce: 9oS0HT
+.. section: Core and Builtins
+
+Use low bit of ``LOAD_GLOBAL`` to indicate whether to push a ``NULL`` before
+the global. Helps streamline the call sequence a bit.
+
+..
+
+.. bpo: 46841
+.. date: 2022-03-16-11-05-35
+.. nonce: yUoIHg
+.. section: Core and Builtins
+
+Quicken bytecode in-place by storing it as part of the corresponding
+``PyCodeObject``.
+
+..
+
+.. bpo: 47012
+.. date: 2022-03-14-11-15-11
+.. nonce: 5L6NoE
+.. section: Core and Builtins
+
+Speed up iteration of :class:`bytes` and :class:`bytearray` by 30%. Patch by
+Kumar Aditya.
+
+..
+
+.. bpo: 47009
+.. date: 2022-03-14-09-45-10
+.. nonce: ZI05b5
+.. section: Core and Builtins
+
+Improved the performance of :meth:`list.append()` and list comprehensions by
+optimizing for the common case, where no resize is needed. Patch by Dennis
+Sweeney.
+
+..
+
+.. bpo: 47005
+.. date: 2022-03-13-21-04-20
+.. nonce: OHBfCc
+.. section: Core and Builtins
+
+Improve performance of ``bytearray_repeat`` and ``bytearray_irepeat`` by
+reducing the number of invocations of ``memcpy``.
+
+..
+
+.. bpo: 46829
+.. date: 2022-03-12-21-07-21
+.. nonce: cpGoPV
+.. section: Core and Builtins
+
+Deprecate passing a message into :meth:`asyncio.Future.cancel` and
+:meth:`asyncio.Task.cancel`
+
+..
+
+.. bpo: 46993
+.. date: 2022-03-12-09-44-31
+.. nonce: -13hGo
+.. section: Core and Builtins
+
+Speed up :class:`bytearray` creation from :class:`list` and :class:`tuple`
+by 40%. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 39829
+.. date: 2022-03-11-09-39-01
+.. nonce: mlW3Su
+.. section: Core and Builtins
+
+Removed the ``__len__()`` call when initializing a list and moved
+initializing to ``list_extend``. Patch by Jeremiah Pascual.
+
+..
+
+.. bpo: 46944
+.. date: 2022-03-08-10-50-42
+.. nonce: cnaIK3
+.. section: Core and Builtins
+
+Speed up throwing exception in generator with :const:`METH_FASTCALL` calling
+convention. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 46841
+.. date: 2022-03-07-15-54-39
+.. nonce: 7wG92r
+.. section: Core and Builtins
+
+Modify :opcode:`STORE_SUBSCR` to use an inline cache entry (rather than its
+oparg) as an adaptive counter.
+
+..
+
+.. bpo: 46841
+.. date: 2022-03-06-10-37-36
+.. nonce: O12Pba
+.. section: Core and Builtins
+
+Use inline caching for :opcode:`PRECALL` and :opcode:`CALL`, and remove the
+internal machinery for managing the (now unused) non-inline caches.
+
+..
+
+.. bpo: 46881
+.. date: 2022-03-03-09-08-17
+.. nonce: ckD4tT
+.. section: Core and Builtins
+
+Statically allocate and initialize the latin1 characters.
+
+..
+
+.. bpo: 46838
+.. date: 2022-02-25-22-42-30
+.. nonce: RB6kEy
+.. section: Core and Builtins
+
+Improve syntax errors for incorrect function definitions. Patch by Pablo
+Galindo
+
+..
+
+.. bpo: 43721
+.. date: 2022-02-01-10-05-27
+.. nonce: -1XAIo
+.. section: Core and Builtins
+
+Fix docstrings of :attr:`~property.getter`, :attr:`~property.setter`, and
+:attr:`~property.deleter` to clarify that they create a new copy of the
+property.
+
+..
+
+.. bpo: 43224
+.. date: 2022-01-20-16-48-09
+.. nonce: WDihrT
+.. section: Core and Builtins
+
+Make grammar changes required for PEP 646.
+
+..
+
+.. bpo: 47208
+.. date: 2022-04-04-08-54-31
+.. nonce: cOh9xZ
+.. section: Library
+
+Allow vendors to override :const:`CTYPES_MAX_ARGCOUNT`.
+
+..
+
+.. bpo: 23689
+.. date: 2022-04-03-13-19-08
+.. nonce: TFSc3E
+.. section: Library
+
+:mod:`re` module: fix memory leak when a match is terminated by a signal or
+memory allocation failure. Patch by Ma Lin.
+
+..
+
+.. bpo: 47167
+.. date: 2022-03-30-18-35-50
+.. nonce: nCNHsB
+.. section: Library
+
+Allow overriding a future compliance check in :class:`asyncio.Task`.
+
+..
+
+.. bpo: 47151
+.. date: 2022-03-30-01-17-43
+.. nonce: z-nQkR
+.. section: Library
+
+When subprocess tries to use vfork, it now falls back to fork if vfork
+returns an error. This allows use in situations where vfork isn't allowed by
+the OS kernel.
+
+..
+
+.. bpo: 47152
+.. date: 2022-03-29-19-14-53
+.. nonce: 5rl5ZK
+.. section: Library
+
+Convert the :mod:`re` module into a package. Deprecate modules
+``sre_compile``, ``sre_constants`` and ``sre_parse``.
+
+..
+
+.. bpo: 4833
+.. date: 2022-03-28-20-16-37
+.. nonce: 2vSUE5
+.. section: Library
+
+Add :meth:`ZipFile.mkdir`
+
+..
+
+.. bpo: 27929
+.. date: 2022-03-28-13-35-50
+.. nonce: j5mAmV
+.. section: Library
+
+Fix :meth:`asyncio.loop.sock_connect` to only resolve names for
+:const:`socket.AF_INET` or :const:`socket.AF_INET6` families. Resolution may
+not make sense for other families, like :const:`socket.AF_BLUETOOTH` and
+:const:`socket.AF_UNIX`.
+
+..
+
+.. bpo: 14265
+.. date: 2022-03-27-10-41-24
+.. nonce: OBMlAi
+.. section: Library
+
+Adds the fully qualified test name to unittest output
+
+..
+
+.. bpo: 47061
+.. date: 2022-03-26-13-14-43
+.. nonce: QLxbC6
+.. section: Library
+
+Deprecate the aifc module.
+
+..
+
+.. bpo: 39622
+.. date: 2022-03-25-01-27-25
+.. nonce: ieBIMp
+.. section: Library
+
+Handle Ctrl+C in asyncio programs to interrupt the main task.
+
+..
+
+.. bpo: 47101
+.. date: 2022-03-23-15-31-02
+.. nonce: rVSld-
+.. section: Library
+
+:const:`hashlib.algorithms_available` now lists only algorithms that are
+provided by activated crypto providers on OpenSSL 3.0. Legacy algorithms are
+not listed unless the legacy provider has been loaded into the default OSSL
+context.
+
+..
+
+.. bpo: 47099
+.. date: 2022-03-23-14-16-38
+.. nonce: 2raait
+.. section: Library
+
+All :exc:`URLError` exception messages raised in
+:class:`urllib.request.URLopener` now contain a colon between ``ftp error``
+and the rest of the message. Previously,
+:func:`~urllib.request.URLopener.open_ftp` missed the colon. Patch by Oleg
+Iarygin.
+
+..
+
+.. bpo: 47099
+.. date: 2022-03-23-13-55-41
+.. nonce: P6quRP
+.. section: Library
+
+Exception chaining is changed from
+:func:`Exception.with_traceback`/:func:`sys.exc_info` to :pep:`3134`. Patch
+by Oleg Iarygin.
+
+..
+
+.. bpo: 47095
+.. date: 2022-03-23-12-07-26
+.. nonce: P3YTrh
+.. section: Library
+
+:mod:`hashlib`'s internal ``_blake2`` module now prefers ``libb2`` from
+https://www.blake2.net/ over Python's vendored copy of blake2.
+
+..
+
+.. bpo: 47098
+.. date: 2022-03-23-10-07-41
+.. nonce: 7AN_qp
+.. section: Library
+
+The Keccak Code Package for :mod:`hashlib`'s internal ``_sha3`` module has
+been replaced with tiny_sha3. The module is used as fallback when Python is
+built without OpenSSL.
+
+..
+
+.. bpo: 47088
+.. date: 2022-03-22-19-18-31
+.. nonce: JM1kNI
+.. section: Library
+
+Implement :data:`typing.LiteralString`, part of :pep:`675`. Patch by Jelle
+Zijlstra.
+
+..
+
+.. bpo: 42885
+.. date: 2022-03-21-08-32-19
+.. nonce: LCnTTp
+.. section: Library
+
+Optimize :func:`re.search`, :func:`re.split`, :func:`re.findall`,
+:func:`re.finditer` and :func:`re.sub` for regular expressions starting with
+``\A`` or ``^``.
+
+..
+
+.. bpo: 23691
+.. date: 2022-03-20-22-13-24
+.. nonce: Nc2TrW
+.. section: Library
+
+Protect the :func:`re.finditer` iterator from re-entering.
+
+..
+
+.. bpo: 47067
+.. date: 2022-03-20-17-15-56
+.. nonce: XXLnje
+.. section: Library
+
+Optimize calling ``GenericAlias`` objects by using :pep:`590` ``vectorcall``
+and by replacing ``PyObject_SetAttrString`` with ``PyObject_SetAttr``.
+
+..
+
+.. bpo: 28080
+.. date: 2022-03-20-15-54-41
+.. nonce: kn35Vk
+.. section: Library
+
+Add the *metadata_encoding* parameter in the :class:`zipfile.ZipFile`
+constructor and the ``--metadata-encoding`` option in the :mod:`zipfile` CLI
+to allow reading zipfiles using non-standard codecs to encode the filenames
+within the archive.
+
+..
+
+.. bpo: 47000
+.. date: 2022-03-20-13-00-08
+.. nonce: p8HpG0
+.. section: Library
+
+Make :func:`io.text_encoding` returns "utf-8" when UTF-8 mode is enabled.
+
+..
+
+.. bpo: 42369
+.. date: 2022-03-19-19-56-04
+.. nonce: Ok828t
+.. section: Library
+
+Fix thread safety of :meth:`zipfile._SharedFile.tell` to avoid a
+"zipfile.BadZipFile: Bad CRC-32 for file" exception when reading a
+:class:`ZipFile` from multiple threads.
+
+..
+
+.. bpo: 38256
+.. date: 2022-03-19-15-54-41
+.. nonce: FoMbjE
+.. section: Library
+
+Fix :func:`binascii.crc32` when it is compiled to use zlib'c crc32 to work
+properly on inputs 4+GiB in length instead of returning the wrong result.
+The workaround prior to this was to always feed the function data in
+increments smaller than 4GiB or to just call the zlib module function.
+
+We also have :func:`binascii.crc32` release the GIL when computing on larger
+inputs as :func:`zlib.crc32` and :mod:`hashlib` do.
+
+This also boosts performance on Windows as it now uses the zlib crc32
+implementation for :func:`binascii.crc32` for a 2-3x speedup.
+
+That the stdlib has a crc32 API in two modules is a known historical oddity.
+This moves us closer to a single implementation behind them.
+
+..
+
+.. bpo: 47066
+.. date: 2022-03-19-14-12-23
+.. nonce: we3YFx
+.. section: Library
+
+Global inline flags (e.g. ``(?i)``) can now only be used at the start of the
+regular expressions. Using them not at the start of expression was
+deprecated since Python 3.6.
+
+..
+
+.. bpo: 39394
+.. date: 2022-03-19-13-38-29
+.. nonce: 7j6WL6
+.. section: Library
+
+A warning about inline flags not at the start of the regular expression now
+contains the position of the flag.
+
+..
+
+.. bpo: 433030
+.. date: 2022-03-19-08-42-57
+.. nonce: UTwRX7
+.. section: Library
+
+Add support of atomic grouping (``(?>...)``) and possessive quantifiers
+(``*+``, ``++``, ``?+``, ``{m,n}+``) in :mod:`regular expressions <re>`.
+
+..
+
+.. bpo: 47062
+.. date: 2022-03-18-22-46-18
+.. nonce: RNc99_
+.. section: Library
+
+Implement :class:`asyncio.Runner` context manager.
+
+..
+
+.. bpo: 46382
+.. date: 2022-03-18-17-25-57
+.. nonce: zQUJ66
+.. section: Library
+
+:func:`~dataclasses.dataclass` ``slots=True`` now correctly omits slots
+already defined in base classes. Patch by Arie Bovenberg.
+
+..
+
+.. bpo: 47057
+.. date: 2022-03-18-14-22-38
+.. nonce: n-IHbt
+.. section: Library
+
+Use FASTCALL convention for ``FutureIter.throw()``
+
+..
+
+.. bpo: 47061
+.. date: 2022-03-18-13-30-40
+.. nonce: etLHK5
+.. section: Library
+
+Deprecate the various modules listed by :pep:`594`:
+
+aifc, asynchat, asyncore, audioop, cgi, cgitb, chunk, crypt, imghdr, msilib,
+nntplib, nis, ossaudiodev, pipes, smtpd, sndhdr, spwd, sunau, telnetlib, uu,
+xdrlib
+
+..
+
+.. bpo: 34790
+.. date: 2022-03-17-19-38-40
+.. nonce: zQIiVJ
+.. section: Library
+
+Remove passing coroutine objects to :func:`asyncio.wait`.
+
+..
+
+.. bpo: 47039
+.. date: 2022-03-17-01-54-13
+.. nonce: 0Yxv0K
+.. section: Library
+
+Normalize ``repr()`` of asyncio future and task objects.
+
+..
+
+.. bpo: 2604
+.. date: 2022-03-16-18-25-19
+.. nonce: jeopdL
+.. section: Library
+
+Fix bug where doctests using globals would fail when run multiple times.
+
+..
+
+.. bpo: 45150
+.. date: 2022-03-16-11-52-52
+.. nonce: kYbIME
+.. section: Library
+
+Add :func:`hashlib.file_digest` helper for efficient hashing of file object.
+
+..
+
+.. bpo: 34861
+.. date: 2022-03-16-08-49-12
+.. nonce: p8ugVg
+.. section: Library
+
+Made cumtime the default sorting key for cProfile
+
+..
+
+.. bpo: 45997
+.. date: 2022-03-15-18-32-12
+.. nonce: 4n2aVU
+.. section: Library
+
+Fix :class:`asyncio.Semaphore` re-aquiring FIFO order.
+
+..
+
+.. bpo: 47022
+.. date: 2022-03-15-09-29-52
+.. nonce: uaEDcI
+.. section: Library
+
+The :mod:`asynchat`, :mod:`asyncore` and :mod:`smtpd` modules have been
+deprecated since at least Python 3.6. Their documentation and deprecation
+warnings and have now been updated to note they will removed in Python 3.12
+(:pep:`594`).
+
+..
+
+.. bpo: 43253
+.. date: 2022-03-15-07-53-45
+.. nonce: rjdLFj
+.. section: Library
+
+Fix a crash when closing transports where the underlying socket handle is
+already invalid on the Proactor event loop.
+
+..
+
+.. bpo: 40280
+.. date: 2022-03-14-09-26-42
+.. nonce: 2-k8TV
+.. section: Library
+
+:func:`select.select` now passes ``NULL`` to ``select`` for each empty
+fdset.
+
+..
+
+.. bpo: 47004
+.. date: 2022-03-13-15-04-05
+.. nonce: SyYpxd
+.. section: Library
+
+Apply bugfixes from importlib_metadata 4.11.3, including bugfix for
+EntryPoint.extras, which was returning match objects and not the extras
+strings.
+
+..
+
+.. bpo: 46998
+.. date: 2022-03-13-08-52-58
+.. nonce: cHh-9O
+.. section: Library
+
+Allow subclassing of :class:`typing.Any`. Patch by Shantanu Jain.
+
+..
+
+.. bpo: 46995
+.. date: 2022-03-12-13-50-42
+.. nonce: 2kdNDg
+.. section: Library
+
+Deprecate missing :meth:`asyncio.Task.set_name` for third-party task
+implementations, schedule making it mandatory in Python 3.13.
+
+..
+
+.. bpo: 46994
+.. date: 2022-03-12-12-34-13
+.. nonce: d7hPdz
+.. section: Library
+
+Accept explicit contextvars.Context in :func:`asyncio.create_task` and
+:meth:`asyncio.loop.create_task`.
+
+..
+
+.. bpo: 46981
+.. date: 2022-03-12-11-30-42
+.. nonce: ltWCxH
+.. section: Library
+
+``typing.get_args(typing.Tuple[()])`` now returns ``()`` instead of
+``((),)``.
+
+..
+
+.. bpo: 46968
+.. date: 2022-03-11-17-56-25
+.. nonce: pPVvNo
+.. section: Library
+
+Add ``os.sysconf_names['SC_MINSIGSTKSZ']``.
+
+..
+
+.. bpo: 46985
+.. date: 2022-03-11-13-34-16
+.. nonce: BgoMr2
+.. section: Library
+
+Upgrade pip wheel bundled with ensurepip (pip 22.0.4)
+
+..
+
+.. bpo: 46968
+.. date: 2022-03-10-14-51-11
+.. nonce: ym2QxL
+.. section: Library
+
+:mod:`faulthandler`: On Linux 5.14 and newer, dynamically determine size of
+signal handler stack size CPython allocates using
+``getauxval(AT_MINSIGSTKSZ)``. This changes allows for Python extension's
+request to Linux kernel to use AMX_TILE instruction set on Sapphire Rapids
+Xeon processor to succeed, unblocking use of the ISA in frameworks.
+
+..
+
+.. bpo: 46917
+.. date: 2022-03-10-14-47-16
+.. nonce: s19zcy
+.. section: Library
+
+The :data:`math.nan` value is now always available. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46955
+.. date: 2022-03-08-22-41-59
+.. nonce: IOoonN
+.. section: Library
+
+Expose :class:`asyncio.base_events.Server` as :class:`asyncio.Server`. Patch
+by Stefan Zabka.
+
+..
+
+.. bpo: 23325
+.. date: 2022-03-08-11-34-06
+.. nonce: 3VQnfo
+.. section: Library
+
+The :mod:`signal` module no longer assumes that :const:`~signal.SIG_IGN` and
+:const:`~signal.SIG_DFL` are small int singletons.
+
+..
+
+.. bpo: 46932
+.. date: 2022-03-07-20-20-34
+.. nonce: xbarAs
+.. section: Library
+
+Update bundled libexpat to 2.4.7
+
+..
+
+.. bpo: 46933
+.. date: 2022-03-05-21-51-31
+.. nonce: 6yzWtb
+.. section: Library
+
+The :mod:`pwd` module is now optional. :func:`os.path.expanduser` returns
+the path when the :mod:`pwd` module is not available.
+
+..
+
+.. bpo: 40059
+.. date: 2022-02-23-01-11-08
+.. nonce: Iwc9UH
+.. section: Library
+
+:pep:`680`, the :mod:`tomllib` module. Adds support for parsing TOML.
+
+..
+
+.. bpo: 464471
+.. date: 2022-02-21-11-41-23
+.. nonce: fL06TV
+.. section: Library
+
+:func:`asyncio.timeout` and :func:`asyncio.timeout_at` context managers
+added. Patch by Tin Tvrtković and Andrew Svetlov.
+
+..
+
+.. bpo: 46805
+.. date: 2022-02-20-23-03-32
+.. nonce: HZ8xWG
+.. section: Library
+
+Added raw datagram socket functions for asyncio:
+:meth:`~asyncio.AbstractEventLoop.sock_sendto`,
+:meth:`~asyncio.AbstractEventLoop.sock_recvfrom` and
+:meth:`~asyncio.AbstractEventLoop.sock_recvfrom_into`.
+
+..
+
+.. bpo: 46644
+.. date: 2022-02-05-22-14-44
+.. nonce: P--1Cz
+.. section: Library
+
+No longer require valid typeforms to be callable. This allows
+:data:`typing.Annotated` to wrap :data:`typing.ParamSpecArgs` and
+:data:`dataclasses.InitVar`. Patch by Gregory Beauregard.
+
+..
+
+.. bpo: 46581
+.. date: 2022-02-01-11-32-47
+.. nonce: t7Zw65
+.. section: Library
+
+Brings :class:`ParamSpec` propagation for :class:`GenericAlias` in line with
+:class:`Concatenate` (and others).
+
+..
+
+.. bpo: 45413
+.. date: 2022-01-31-15-19-38
+.. nonce: 1vaS0V
+.. section: Library
+
+Define *posix_venv* and *nt_venv* :ref:`sysconfig installation schemes
+<installation_paths>` to be used for bootstrapping new virtual environments.
+Add *venv* sysconfig installation scheme to get the appropriate one of the
+above. The schemes are identical to the pre-existing *posix_prefix* and *nt*
+install schemes. The :mod:`venv` module now uses the *venv* scheme to create
+new virtual environments instead of hardcoding the paths depending only on
+the platform. Downstream Python distributors customizing the *posix_prefix*
+or *nt* install scheme in a way that is not compatible with the install
+scheme used in virtual environments are encouraged not to customize the
+*venv* schemes. When Python itself runs in a virtual environment,
+:func:`sysconfig.get_default_scheme` and
+:func:`sysconfig.get_preferred_scheme` with ``key="prefix"`` returns *venv*.
+
+..
+
+.. bpo: 43224
+.. date: 2022-01-30-22-05-53
+.. nonce: E-eT22
+.. section: Library
+
+Implement support for PEP 646 in typing.py.
+
+..
+
+.. bpo: 43224
+.. date: 2022-01-30-20-32-40
+.. nonce: zqrQsj
+.. section: Library
+
+Allow unpacking types.GenericAlias objects, e.g. ``*tuple[int, str]``.
+
+..
+
+.. bpo: 46557
+.. date: 2022-01-28-01-23-25
+.. nonce: XSbhyQ
+.. section: Library
+
+Warnings captured by the logging module are now logged without a format
+string to prevent systems that group logs by the msg argument from grouping
+captured warnings together.
+
+..
+
+.. bpo: 41370
+.. date: 2022-01-27-11-54-16
+.. nonce: gYxCPE
+.. section: Library
+
+:func:`typing.get_type_hints` now supports evaluating strings as forward
+references in :ref:`PEP 585 generic aliases <types-genericalias>`.
+
+..
+
+.. bpo: 46607
+.. date: 2022-01-26-18-30-34
+.. nonce: xnhT4a
+.. section: Library
+
+Add :exc:`DeprecationWarning` to :class:`LegacyInterpolation`, deprecated in
+the docstring since Python 3.2. Will be removed in Python 3.13. Use
+:class:`BasicInterpolation` or :class:`ExtendedInterpolation` instead.
+
+..
+
+.. bpo: 26120
+.. date: 2022-01-25-15-45-04
+.. nonce: YzrBMO
+.. section: Library
+
+:mod:`pydoc` now excludes __future__ imports from the module's data items.
+
+..
+
+.. bpo: 46480
+.. date: 2022-01-23-16-33-07
+.. nonce: E4jHlh
+.. section: Library
+
+Add :func:`typing.assert_type`. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 46421
+.. date: 2022-01-18-01-29-38
+.. nonce: 9LdmNr
+.. section: Library
+
+Fix a unittest issue where if the command was invoked as ``python -m
+unittest`` and the filename(s) began with a dot (.), a ``ValueError`` is
+returned.
+
+..
+
+.. bpo: 46245
+.. date: 2022-01-03-20-12-14
+.. nonce: 3w4RlA
+.. section: Library
+
+Add optional parameter *dir_fd* in :func:`shutil.rmtree`.
+
+..
+
+.. bpo: 22859
+.. date: 2021-12-29-19-37-49
+.. nonce: AixHW7
+.. section: Library
+
+:meth:`~unittest.TestProgram.usageExit` is marked deprecated, to be removed
+in 3.13.
+
+..
+
+.. bpo: 46170
+.. date: 2021-12-26-14-45-51
+.. nonce: AQ7kSM
+.. section: Library
+
+Improve the error message when you try to subclass an instance of
+:class:`typing.NewType`.
+
+..
+
+.. bpo: 40296
+.. date: 2021-12-25-14-13-14
+.. nonce: p0YVGB
+.. section: Library
+
+Fix supporting generic aliases in :mod:`pydoc`.
+
+..
+
+.. bpo: 20392
+.. date: 2021-12-22-12-02-27
+.. nonce: CLAFIp
+.. section: Library
+
+Fix inconsistency with uppercase file extensions in
+:meth:`MimeTypes.guess_type`. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 46030
+.. date: 2021-12-10-07-07-47
+.. nonce: UN349J
+.. section: Library
+
+Add ``LOCAL_CREDS``, ``LOCAL_CREDS_PERSISTENT`` and ``SCM_CREDS2`` FreeBSD
+constants to the socket module.
+
+..
+
+.. bpo: 44439
+.. date: 2021-11-08-20-27-41
+.. nonce: I_8qro
+.. section: Library
+
+Fix ``.write()`` method of a member file in ``ZipFile``, when the input data
+is an object that supports the buffer protocol, the file length may be
+wrong.
+
+..
+
+.. bpo: 45171
+.. date: 2021-09-11-16-06-54
+.. nonce: ec597j
+.. section: Library
+
+Fix handling of the ``stacklevel`` argument to logging functions in the
+:mod:`logging` module so that it is consistent across all logging functions
+and, as advertised, similar to the ``stacklevel`` argument used in
+:meth:`~warnings.warn`.
+
+..
+
+.. bpo: 24959
+.. date: 2021-09-06-15-46-53
+.. nonce: UVFgiO
+.. section: Library
+
+Fix bug where :mod:`unittest` sometimes drops frames from tracebacks of
+exceptions raised in tests.
+
+..
+
+.. bpo: 44859
+.. date: 2021-08-10-00-05-53
+.. nonce: 9e9_3V
+.. section: Library
+
+Raise more accurate and :pep:`249` compatible exceptions in :mod:`sqlite3`.
+
+* Raise :exc:`~sqlite3.InterfaceError` instead of
+ :exc:`~sqlite3.ProgrammingError` for ``SQLITE_MISUSE`` errors.
+* Don't overwrite :exc:`BufferError` with :exc:`ValueError` when conversion to
+ BLOB fails.
+* Raise :exc:`~sqlite3.ProgrammingError` instead of :exc:`~sqlite3.Warning` if
+ user tries to :meth:`~sqlite3.Cursor.execute()` more than one SQL statement.
+* Raise :exc:`~sqlite3.ProgrammingError` instead of :exc:`ValueError` if an SQL
+ query contains null characters.
+
+..
+
+.. bpo: 44493
+.. date: 2021-07-26-10-46-49
+.. nonce: xp3CRH
+.. section: Library
+
+Add missing terminated NUL in sockaddr_un's length
+
+This was potentially observable when using non-abstract AF_UNIX datagram
+sockets to processes written in another programming language.
+
+..
+
+.. bpo: 41930
+.. date: 2021-06-17-00-02-58
+.. nonce: JS6fsd
+.. section: Library
+
+Add :meth:`~sqlite3.Connection.serialize` and
+:meth:`~sqlite3.Connection.deserialize` support to :mod:`sqlite3`. Patch by
+Erlend E. Aasland.
+
+..
+
+.. bpo: 33178
+.. date: 2021-04-20-16-48-07
+.. nonce: kSnWwb
+.. section: Library
+
+Added :class:`ctypes.BigEndianUnion` and :class:`ctypes.LittleEndianUnion`
+classes, as originally documented in the library docs but not yet
+implemented.
+
+..
+
+.. bpo: 43352
+.. date: 2021-03-31-15-22-45
+.. nonce: nSjMuE
+.. section: Library
+
+Add an Barrier object in synchronization primitives of *asyncio* Lib in
+order to be consistant with Barrier from *threading* and *multiprocessing*
+libs*
+
+..
+
+.. bpo: 35859
+.. date: 2019-03-14-09-08-25
+.. nonce: 8lFdLe
+.. section: Library
+
+:mod:`re` module, fix a few bugs about capturing group. In rare cases,
+capturing group gets an incorrect string. Patch by Ma Lin.
+
+..
+
+.. bpo: 45099
+.. date: 2022-03-29-13-25-49
+.. nonce: dagdhx
+.. section: Documentation
+
+Document internal :mod:`asyncio` API.
+
+..
+
+.. bpo: 47126
+.. date: 2022-03-26-12-20-16
+.. nonce: p6_Ovm
+.. section: Documentation
+
+Update PEP URLs to :pep:`676`'s new canonical form.
+
+..
+
+.. bpo: 47040
+.. date: 2022-03-17-13-35-28
+.. nonce: 4Dn48U
+.. section: Documentation
+
+Clarified the old Python versions compatiblity note of
+:func:`binascii.crc32` / :func:`zlib.adler32` / :func:`zlib.crc32`
+functions.
+
+..
+
+.. bpo: 46033
+.. date: 2022-01-03-18-50-39
+.. nonce: 7WeF0f
+.. section: Documentation
+
+Clarify ``for`` statement execution in its doc.
+
+..
+
+.. bpo: 45790
+.. date: 2021-11-12-11-03-55
+.. nonce: 6yuhe8
+.. section: Documentation
+
+Adjust inaccurate phrasing in :doc:`../extending/newtypes_tutorial` about
+the ``ob_base`` field and the macros used to access its contents.
+
+..
+
+.. bpo: 42340
+.. date: 2020-11-12-21-26-31
+.. nonce: apumUL
+.. section: Documentation
+
+Document that in some circumstances :exc:`KeyboardInterrupt` may cause the
+code to enter an inconsistent state. Provided a sample workaround to avoid
+it if needed.
+
+..
+
+.. bpo: 41233
+.. date: 2020-07-07-22-54-51
+.. nonce: lyUJ8L
+.. section: Documentation
+
+Link the errnos referenced in ``Doc/library/exceptions.rst`` to their
+respective section in ``Doc/library/errno.rst``, and vice versa. Previously
+this was only done for EINTR and InterruptedError. Patch by Yan "yyyyyyyan"
+Orestes.
+
+..
+
+.. bpo: 47205
+.. date: 2022-04-03-14-38-21
+.. nonce: hbbTnh
+.. section: Tests
+
+Skip test for :func:`~os.sched_getaffinity` and
+:func:`~os.sched_setaffinity` error case on FreeBSD.
+
+..
+
+.. bpo: 46126
+.. date: 2022-03-26-11-41-19
+.. nonce: q14Ioy
+.. section: Tests
+
+Restore 'descriptions' when running tests internally.
+
+..
+
+.. bpo: 47104
+.. date: 2022-03-23-22-45-51
+.. nonce: _esUq8
+.. section: Tests
+
+Rewrite :func:`asyncio.to_thread` tests to use
+:class:`unittest.IsolatedAsyncioTestCase`.
+
+..
+
+.. bpo: 40280
+.. date: 2022-03-19-10-25-04
+.. nonce: wBRSel
+.. section: Tests
+
+The test suite is now passing on the Emscripten platform. All fork, socket,
+and subprocess-based tests are skipped.
+
+..
+
+.. bpo: 47037
+.. date: 2022-03-16-21-29-30
+.. nonce: xcrLpJ
+.. section: Tests
+
+Skip ``strftime("%4Y")`` feature test on Windows. It can cause an assertion
+error in debug builds.
+
+..
+
+.. bpo: 46587
+.. date: 2022-03-14-17-10-35
+.. nonce: ASDsJX
+.. section: Tests
+
+Skip tests if platform's ``strftime`` does not support non-portable glibc
+extensions.
+
+..
+
+.. bpo: 47015
+.. date: 2022-03-13-23-43-40
+.. nonce: FjmCsz
+.. section: Tests
+
+A test case for :func:`os.sendfile` is converted from deprecated
+:mod:`asyncore` (see :pep:`594`) to :mod:`asyncio`. Patch by Oleg Iarygin.
+
+..
+
+.. bpo: 40280
+.. date: 2022-04-02-17-52-38
+.. nonce: U8Dd0H
+.. section: Build
+
+Add configure option :option:`--enable-wasm-dynamic-linking` to enable
+``dlopen`` and MAIN_MODULE / SIDE_MODULE on ``wasm32-emscripten``.
+
+..
+
+.. bpo: 46023
+.. date: 2022-04-01-16-12-53
+.. nonce: 1Z1OcC
+.. section: Build
+
+``makesetup`` now detects and skips all duplicated module definitions. The
+first entry wins.
+
+..
+
+.. bpo: 40280
+.. date: 2022-03-24-12-12-35
+.. nonce: eAQWrM
+.. section: Build
+
+Add SOABI ``wasm32-emscripten`` for Emscripten and ``wasm32-wasi`` for WASI
+on 32bit WASM as well as ``wasm64`` counter parts.
+
+..
+
+.. bpo: 47032
+.. date: 2022-03-16-00-37-40
+.. nonce: tsS9KE
+.. section: Build
+
+Ensure Windows install builds fail correctly with a non-zero exit code when
+part of the build fails.
+
+..
+
+.. bpo: 47024
+.. date: 2022-03-15-09-28-55
+.. nonce: t7-dcu
+.. section: Build
+
+Update OpenSSL to 1.1.1n for macOS installers and all Windows builds.
+
+..
+
+.. bpo: 46996
+.. date: 2022-03-12-18-09-31
+.. nonce: SygzVz
+.. section: Build
+
+The :mod:`tkinter` package now requires Tcl/Tk version 8.5.12 or newer.
+
+..
+
+.. bpo: 46973
+.. date: 2022-03-10-14-30-39
+.. nonce: _LEvnc
+.. section: Build
+
+Add ``regen-configure`` make target to regenerate configure script with
+Christian's container image ``quay.io/tiran/cpython_autoconf:269``.
+
+..
+
+.. bpo: 46917
+.. date: 2022-03-10-09-37-05
+.. nonce: fry4aK
+.. section: Build
+
+Building Python now requires support of IEEE 754 floating point numbers.
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 45774
+.. date: 2022-03-04-21-24-02
+.. nonce: 9AhC0r
+.. section: Build
+
+``configure`` now verifies that all SQLite C APIs needed for the
+:mod:`sqlite3` extension module are found.
+
+..
+
+.. bpo: 47194
+.. date: 2022-04-01-14-57-40
+.. nonce: IB0XL4
+.. section: Windows
+
+Update ``zlib`` to v1.2.12 to resolve CVE-2018-25032.
+
+..
+
+.. bpo: 47171
+.. date: 2022-03-30-19-55-00
+.. nonce: MbqCWn
+.. section: Windows
+
+Enables installing the :file:`py.exe` launcher on Windows ARM64.
+
+..
+
+.. bpo: 46566
+.. date: 2022-03-23-12-51-46
+.. nonce: 4x4a7e
+.. section: Windows
+
+Upgraded :ref:`launcher` to support a new ``-V:company/tag`` argument for
+full :pep:`514` support and to detect ARM64 installs. The ``-64`` suffix on
+arguments is deprecated, but still selects any non-32-bit install. Setting
+:envvar:`PYLAUNCHER_ALLOW_INSTALL` and specifying a version that is not
+installed will attempt to install the requested version from the Microsoft
+Store.
+
+..
+
+.. bpo: 47086
+.. date: 2022-03-21-20-45-01
+.. nonce: bIuKlF
+.. section: Windows
+
+The installer for Windows now includes documentation as loose HTML files
+rather than a single compiled :file:`.chm` file.
+
+..
+
+.. bpo: 46907
+.. date: 2022-03-13-11-18-41
+.. nonce: YLzxBM
+.. section: Windows
+
+Update Windows installer to use SQLite 3.38.1.
+
+..
+
+.. bpo: 44549
+.. date: 2022-03-07-17-46-40
+.. nonce: SPrGS9
+.. section: Windows
+
+Update bzip2 to 1.0.8 in Windows builds to mitigate CVE-2016-3189 and
+CVE-2019-12900
+
+..
+
+.. bpo: 46948
+.. date: 2022-03-07-16-34-11
+.. nonce: Ufd4tG
+.. section: Windows
+
+Prevent CVE-2022-26488 by ensuring the Add to PATH option in the Windows
+installer uses the correct path when being repaired.
+
+..
+
+.. bpo: 46890
+.. date: 2022-03-17-09-55-02
+.. nonce: GX-3OO
+.. section: macOS
+
+Fix a regression in the setting of ``sys._base_executable`` in framework
+builds, and thereby fix a regression in :mod:`venv` virtual environments
+with such builds.
+
+..
+
+.. bpo: 46907
+.. date: 2022-03-13-11-11-31
+.. nonce: Ql0z1E
+.. section: macOS
+
+Update macOS installer to SQLite 3.38.1.
+
+..
+
+.. bpo: 40280
+.. date: 2022-04-03-11-47-45
+.. nonce: Q_IJik
+.. section: Tools/Demos
+
+Replace Emscripten's limited shell with Katie Bell's browser-ui REPL from
+python-wasm project.
+
+..
+
+.. bpo: 40421
+.. date: 2022-03-25-13-40-46
+.. nonce: wJREl2
+.. section: C API
+
+Add ``PyFrame_GetBuiltins``, ``PyFrame_GetGenerator`` and
+``PyFrame_GetGlobals`` C-API functions to access frame object attributes
+safely from C code.
+
+..
+
+.. bpo: 46850
+.. date: 2022-03-22-16-59-34
+.. nonce: lmEKLy
+.. section: C API
+
+Move the private ``_PyFrameEvalFunction`` type, and private
+``_PyInterpreterState_GetEvalFrameFunc()`` and
+``_PyInterpreterState_SetEvalFrameFunc()`` functions to the internal C API.
+The ``_PyFrameEvalFunction`` callback function type now uses the
+``_PyInterpreterFrame`` type which is part of the internal C API. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 46850
+.. date: 2022-03-22-16-48-02
+.. nonce: 7M5dO7
+.. section: C API
+
+Move the private undocumented ``_PyEval_EvalFrameDefault()`` function to the
+internal C API. The function now uses the ``_PyInterpreterFrame`` type which
+is part of the internal C API. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46850
+.. date: 2022-03-21-02-26-27
+.. nonce: hU3c-O
+.. section: C API
+
+Remove the private undocumented function ``_PyEval_CallTracing()`` from the
+C API. Call the public :func:`sys.call_tracing` function instead. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 46850
+.. date: 2022-03-21-01-30-14
+.. nonce: Tfxde5
+.. section: C API
+
+Remove the private undocumented function
+``_PyEval_GetCoroutineOriginTrackingDepth()`` from the C API. Call the
+public :func:`sys.get_coroutine_origin_tracking_depth` function instead.
+Patch by Victor Stinner.
+
+..
+
+.. bpo: 46850
+.. date: 2022-03-21-00-41-29
+.. nonce: rOt771
+.. section: C API
+
+Remove the following private undocumented functions from the C API:
+
+* ``_PyEval_GetAsyncGenFirstiter()``
+* ``_PyEval_GetAsyncGenFinalizer()``
+* ``_PyEval_SetAsyncGenFirstiter()``
+* ``_PyEval_SetAsyncGenFinalizer()``
+
+Call the public :func:`sys.get_asyncgen_hooks` and
+:func:`sys.set_asyncgen_hooks` functions instead. Patch by Victor Stinner.
+
+..
+
+.. bpo: 46987
+.. date: 2022-03-12-18-37-06
+.. nonce: LWcwyN
+.. section: C API
+
+Remove private functions ``_PySys_GetObjectId()`` and
+``_PySys_SetObjectId()``. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 46906
+.. date: 2022-03-03-11-12-33
+.. nonce: -olyBI
+.. section: C API
+
+Add new functions to pack and unpack C double (serialize and deserialize):
+:c:func:`PyFloat_Pack2`, :c:func:`PyFloat_Pack4`, :c:func:`PyFloat_Pack8`,
+:c:func:`PyFloat_Unpack2`, :c:func:`PyFloat_Unpack4` and
+:c:func:`PyFloat_Unpack8`. Patch by Victor Stinner.
--- /dev/null
+.. date: 2022-05-04-14-32-24
+.. gh-issue: 57684
+.. nonce: HrlDrM
+.. release date: 2022-05-06
+.. section: Security
+
+Add the :option:`-P` command line option and the :envvar:`PYTHONSAFEPATH`
+environment variable to not prepend a potentially unsafe path to
+:data:`sys.path`. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-05-06-02-29-53
+.. gh-issue: 89519
+.. nonce: 4OfkRE
+.. section: Core and Builtins
+
+Chaining classmethod descriptors (introduced in bpo-19072) is deprecated. It
+can no longer be used to wrap other descriptors such as property(). The
+core design of this feature was flawed, and it caused a number of downstream
+problems.
+
+..
+
+.. date: 2022-05-05-20-05-41
+.. gh-issue: 92345
+.. nonce: lnN_RA
+.. section: Core and Builtins
+
+``pymain_run_python()`` now imports ``readline`` and ``rlcompleter`` before
+sys.path is extended to include the current working directory of an
+interactive interpreter. Non-interactive interpreters are not affected.
+
+..
+
+.. bpo: 43857
+.. date: 2022-05-04-11-37-20
+.. nonce: WuX8p3
+.. section: Core and Builtins
+
+Improve the :exc:`AttributeError` message when deleting a missing attribute.
+Patch by Géry Ogam.
+
+..
+
+.. date: 2022-05-03-14-55-40
+.. gh-issue: 92245
+.. nonce: G17-5i
+.. section: Core and Builtins
+
+Make sure that PEP 523 is respected in all cases. In 3.11a7, specialization
+may have prevented Python-to-Python calls respecting PEP 523.
+
+..
+
+.. date: 2022-05-02-17-12-49
+.. gh-issue: 92203
+.. nonce: -igcjS
+.. section: Core and Builtins
+
+Add a closure keyword-only parameter to exec(). It can only be specified
+when exec-ing a code object that uses free variables. When specified, it
+must be a tuple, with exactly the number of cell variables referenced by the
+code object. closure has a default value of None, and it must be None if the
+code object doesn't refer to any free variables.
+
+..
+
+.. date: 2022-05-02-12-40-18
+.. gh-issue: 91173
+.. nonce: k_Dr6z
+.. section: Core and Builtins
+
+Disable frozen modules in debug builds. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-05-01-16-40-07
+.. gh-issue: 92114
+.. nonce: 5xTlLt
+.. section: Core and Builtins
+
+Improve error message when subscript a type with ``__class_getitem__`` set
+to ``None``.
+
+..
+
+.. date: 2022-05-01-10-58-38
+.. gh-issue: 92112
+.. nonce: lLJemu
+.. section: Core and Builtins
+
+Fix crash triggered by an evil custom ``mro()`` on a metaclass.
+
+..
+
+.. date: 2022-04-30-04-26-01
+.. gh-issue: 92063
+.. nonce: vHnhf6
+.. section: Core and Builtins
+
+The ``PRECALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS`` instruction now ensures
+methods are called only on objects of the correct type.
+
+..
+
+.. date: 2022-04-29-02-50-41
+.. gh-issue: 92031
+.. nonce: 2PpaIN
+.. section: Core and Builtins
+
+Deoptimize statically allocated code objects during ``Py_FINALIZE()`` so
+that future ``_PyCode_Quicken`` calls always start with unquickened code.
+
+..
+
+.. date: 2022-04-28-23-37-30
+.. gh-issue: 92036
+.. nonce: GZJAC9
+.. section: Core and Builtins
+
+Fix a crash in subinterpreters related to the garbage collector. When a
+subinterpreter is deleted, untrack all objects tracked by its GC. To prevent
+a crash in deallocator functions expecting objects to be tracked by the GC,
+leak a strong reference to these objects on purpose, so they are never
+deleted and their deallocator functions are not called. Patch by Victor
+Stinner.
+
+..
+
+.. date: 2022-04-28-20-19-49
+.. gh-issue: 92032
+.. nonce: ef-UfM
+.. section: Core and Builtins
+
+The interpreter can now autocomplete soft keywords, as of now ``match``,
+``case``, and ``_`` (wildcard pattern) from :pep:`634`.
+
+..
+
+.. date: 2022-04-27-10-36-43
+.. gh-issue: 87999
+.. nonce: YSPHfO
+.. section: Core and Builtins
+
+The warning emitted by the Python parser for a numeric literal immediately
+followed by keyword has been changed from deprecation warning to syntax
+warning.
+
+..
+
+.. date: 2022-04-26-05-05-32
+.. gh-issue: 91869
+.. nonce: ELbTXl
+.. section: Core and Builtins
+
+Fix an issue where specialized opcodes with extended arguments could produce
+incorrect tracing output or lead to assertion failures.
+
+..
+
+.. date: 2022-04-23-22-08-34
+.. gh-issue: 91603
+.. nonce: GcWEkK
+.. section: Core and Builtins
+
+Speed up :class:`types.UnionType` instantiation. Based on patch provided by
+Yurii Karabas.
+
+..
+
+.. date: 2022-04-21-16-15-24
+.. gh-issue: 89373
+.. nonce: A1jgLx
+.. section: Core and Builtins
+
+If Python is built in debug mode, Python now ensures that deallocator
+functions leave the current exception unchanged. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-04-20-14-43-37
+.. gh-issue: 91632
+.. nonce: cvUhsZ
+.. section: Core and Builtins
+
+Fix a minor memory leak at exit: release the memory of the
+:class:`generic_alias_iterator` type. Patch by Dong-hee Na.
+
+..
+
+.. date: 2022-04-18-20-25-01
+.. gh-issue: 81548
+.. nonce: n3VYgp
+.. section: Core and Builtins
+
+Octal escapes with value larger than ``0o377`` now produce a
+:exc:`DeprecationWarning`. In a future Python version they will be a
+:exc:`SyntaxWarning` and eventually a :exc:`SyntaxError`.
+
+..
+
+.. bpo: 43950
+.. date: 2022-04-18-15-22-56
+.. nonce: qrTvWL
+.. section: Core and Builtins
+
+Use a single compact table for line starts, ends and column offsets. Reduces
+memory consumption for location info by half
+
+..
+
+.. date: 2022-04-18-07-23-48
+.. gh-issue: 91102
+.. nonce: vm-6g1
+.. section: Core and Builtins
+
+Use Argument Clinic for :class:`EncodingMap`. Patch by Oleg Iarygin.
+
+..
+
+.. date: 2022-04-18-02-45-40
+.. gh-issue: 91636
+.. nonce: 6DFdy_
+.. section: Core and Builtins
+
+Fixed a crash in a garbage-collection edge-case, in which a
+``PyFunction_Type.tp_clear`` function could leave a python function object
+in an inconsistent state.
+
+..
+
+.. date: 2022-04-17-11-03-45
+.. gh-issue: 91603
+.. nonce: hYw1Lv
+.. section: Core and Builtins
+
+Speed up :func:`isinstance` and :func:`issubclass` checks for
+:class:`types.UnionType`. Patch by Yurii Karabas.
+
+..
+
+.. date: 2022-04-17-02-55-38
+.. gh-issue: 91625
+.. nonce: 80CrC7
+.. section: Core and Builtins
+
+Fixed a bug in which adaptive opcodes ignored any preceding
+``EXTENDED_ARG``\ s on specialization failure.
+
+..
+
+.. date: 2022-04-16-21-54-31
+.. gh-issue: 78607
+.. nonce: _Y7bMm
+.. section: Core and Builtins
+
+The LLTRACE special build now looks for the name ``__lltrace__`` defined in
+module globals, rather than the name ``__ltrace__``, which had been
+introduced as a typo.
+
+..
+
+.. date: 2022-04-15-16-57-23
+.. gh-issue: 91576
+.. nonce: adoDj_
+.. section: Core and Builtins
+
+Speed up iteration of ascii strings by 50%. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-04-13-22-03-04
+.. gh-issue: 89279
+.. nonce: -jAVxZ
+.. section: Core and Builtins
+
+Improve interpreter performance on Windows by inlining a few specific
+macros.
+
+..
+
+.. date: 2022-04-13-11-15-09
+.. gh-issue: 91502
+.. nonce: 11YXHQ
+.. section: Core and Builtins
+
+Add a new :c:func:`_PyFrame_IsEntryFrame` API function, to check if a
+:c:type:`PyFrameObject` is an entry frame. Patch by Pablo Galindo.
+
+..
+
+.. date: 2022-04-13-07-14-30
+.. gh-issue: 91266
+.. nonce: 6Vkzzt
+.. section: Core and Builtins
+
+Refactor the ``bytearray`` strip methods ``strip``, ``lstrip`` and
+``rstrip`` to use a common implementation.
+
+..
+
+.. date: 2022-04-12-11-56-23
+.. gh-issue: 91479
+.. nonce: -dyGJX
+.. section: Core and Builtins
+
+Replaced the ``__note__`` field of :exc:`BaseException` (added in an earlier
+version of 3.11) with the final design of :pep:`678`. Namely,
+:exc:`BaseException` gets an :meth:`add_note` method, and its ``__notes__``
+field is created when necessary.
+
+..
+
+.. date: 2022-04-12-09-40-57
+.. gh-issue: 46055
+.. nonce: IPb1HA
+.. section: Core and Builtins
+
+Speed up right shift of negative integers, by removing unnecessary creation
+of temporaries. Original patch by Xinhang Xu, reworked by Mark Dickinson.
+
+..
+
+.. date: 2022-04-12-00-44-14
+.. gh-issue: 91462
+.. nonce: t8oxyd
+.. section: Core and Builtins
+
+Make the interpreter's low-level tracing (lltrace) feature output more
+readable by displaying opcode names (rather than just numbers), and by
+displaying stack contents before each opcode.
+
+..
+
+.. date: 2022-04-11-18-44-19
+.. gh-issue: 89455
+.. nonce: d0qMYd
+.. section: Core and Builtins
+
+Fixed an uninitialized bool value in the traceback printing code path that
+was introduced by the initial bpo-45292 exception groups work.
+
+..
+
+.. date: 2022-04-10-22-57-27
+.. gh-issue: 91421
+.. nonce: dHhv6U
+.. section: Core and Builtins
+
+Fix a potential integer overflow in _Py_DecodeUTF8Ex.
+
+..
+
+.. date: 2022-04-10-18-47-21
+.. gh-issue: 91428
+.. nonce: ZewV-M
+.. section: Core and Builtins
+
+Add ``static const char *const _PyOpcode_OpName[256] = {...};`` to
+``opcode.h`` for debug builds to assist in debugging the Python interpreter.
+It is now more convenient to make various forms of debugging output more
+human-readable by including opcode names rather than just the corresponding
+decimal digits.
+
+..
+
+.. bpo: 47120
+.. date: 2022-04-06-22-50-31
+.. nonce: mbfHs5
+.. section: Core and Builtins
+
+Make :opcode:`POP_JUMP_IF_TRUE`, :opcode:`POP_JUMP_IF_FALSE`,
+:opcode:`POP_JUMP_IF_NONE` and :opcode:`POP_JUMP_IF_NOT_NONE` virtual,
+mapping to new relative jump opcodes.
+
+..
+
+.. bpo: 45317
+.. date: 2022-04-04-15-12-38
+.. nonce: UDLOt8
+.. section: Core and Builtins
+
+Add internal documentation explaining design of new (for 3.11) frame stack.
+
+..
+
+.. bpo: 47197
+.. date: 2022-04-03-17-21-04
+.. nonce: Ji_c30
+.. section: Core and Builtins
+
+ctypes used to mishandle ``void`` return types, so that for instance a
+function declared like ``ctypes.CFUNCTYPE(None, ctypes.c_int)`` would be
+called with signature ``int f(int)`` instead of ``void f(int)``. Wasm
+targets require function pointers to be called with the correct signatures
+so this led to crashes. The problem is now fixed.
+
+..
+
+.. bpo: 47120
+.. date: 2022-03-31-14-33-48
+.. nonce: 6S_uoU
+.. section: Core and Builtins
+
+Make opcodes :opcode:`JUMP_IF_TRUE_OR_POP` and
+:opcode:`JUMP_IF_FALSE_OR_POP` relative rather than absolute.
+
+..
+
+.. bpo: 47177
+.. date: 2022-03-31-01-30-03
+.. nonce: fQqaov
+.. section: Core and Builtins
+
+Replace the ``f_lasti`` member of the internal ``_PyInterpreterFrame``
+structure with a ``prev_instr`` pointer, which reduces overhead in the main
+interpreter loop. The ``f_lasti`` attribute of Python-layer frame objects is
+preserved for backward-compatibility.
+
+..
+
+.. bpo: 46961
+.. date: 2022-03-13-08-23-17
+.. nonce: SgGCkG
+.. section: Core and Builtins
+
+Integer mod/remainder operations, including the three-argument form of
+:func:`pow`, now consistently return ints from the global small integer
+cache when applicable.
+
+..
+
+.. bpo: 46962
+.. date: 2022-03-08-21-59-57
+.. nonce: UomDfz
+.. section: Core and Builtins
+
+Classes and functions that unconditionally declared their docstrings
+ignoring the `--without-doc-strings` compilation flag no longer do so.
+
+The classes affected are :class:`ctypes.UnionType`,
+:class:`pickle.PickleBuffer`, :class:`testcapi.RecursingInfinitelyError`,
+and :class:`types.GenericAlias`.
+
+The functions affected are 24 methods in :mod:`ctypes`.
+
+Patch by Oleg Iarygin.
+
+..
+
+.. bpo: 46942
+.. date: 2022-03-07-11-51-51
+.. nonce: 57obVi
+.. section: Core and Builtins
+
+Use Argument Clinic for the :class:`types.MethodType` constructor. Patch by
+Oleg Iarygin.
+
+..
+
+.. bpo: 46764
+.. date: 2022-02-16-03-23-38
+.. nonce: wEY4bS
+.. section: Core and Builtins
+
+Fix wrapping bound methods with @classmethod
+
+..
+
+.. bpo: 43464
+.. date: 2022-02-13-21-53-29
+.. nonce: yupHjd
+.. section: Core and Builtins
+
+Optimize :meth:`set.intersection` for non-set arguments.
+
+..
+
+.. bpo: 46721
+.. date: 2022-02-11-17-16-30
+.. nonce: JkHaLF
+.. section: Core and Builtins
+
+Optimize :meth:`set.issuperset` for non-set argument.
+
+..
+
+.. bpo: 46509
+.. date: 2022-01-25-05-39-38
+.. nonce: ljrqrc
+.. section: Core and Builtins
+
+Add type-specialized versions of the ``Py_DECREF()``, and use them for
+``float``, ``int``, ``str``, ``bool``, and ``None`` to avoid pointer-chasing
+at runtime where types are known at C compile time.
+
+..
+
+.. bpo: 46045
+.. date: 2021-12-11-11-36-48
+.. nonce: sfThay
+.. section: Core and Builtins
+
+Do not use POSIX semaphores on NetBSD
+
+..
+
+.. bpo: 36819
+.. date: 2021-09-28-10-58-30
+.. nonce: cyV50C
+.. section: Core and Builtins
+
+Fix crashes in built-in encoders with error handlers that return position
+less or equal than the starting position of non-encodable characters.
+
+..
+
+.. bpo: 34093
+.. date: 2018-07-14-16-58-00
+.. nonce: WaVD-f
+.. section: Core and Builtins
+
+``marshal.dumps()`` uses ``FLAG_REF`` for all interned strings. This makes
+output more deterministic and helps reproducible build.
+
+..
+
+.. bpo: 26579
+.. date: 2017-07-23-11-28-45
+.. nonce: lpCY8R
+.. section: Core and Builtins
+
+Added ``object.__getstate__`` which provides the default implementation of
+the ``__getstate__()`` method.
+
+Copying and pickling instances of subclasses of builtin types bytearray,
+set, frozenset, collections.OrderedDict, collections.deque, weakref.WeakSet,
+and datetime.tzinfo now copies and pickles instance attributes implemented
+as slots.
+
+..
+
+.. date: 2022-05-06-13-53-10
+.. gh-issue: 87901
+.. nonce: NnkUVr
+.. section: Library
+
+Add the *encoding* parameter to :func:`os.popen`.
+
+..
+
+.. date: 2022-05-06-09-48-07
+.. gh-issue: 90997
+.. nonce: 4PmCgX
+.. section: Library
+
+Fix an issue where :mod:`dis` utilities may interpret populated inline cache
+entries as valid instructions.
+
+..
+
+.. date: 2022-05-05-22-46-52
+.. gh-issue: 92332
+.. nonce: Fv9CJx
+.. section: Library
+
+Deprecate :class:`typing.Text` (removal of the class is currently not
+planned). Patch by Alex Waygood.
+
+..
+
+.. gh: 78157
+.. date: 2022-05-05-20-40-45
+.. nonce: IA_9na
+.. section: Library
+
+Deprecate nested classes in enum definitions becoming members -- in 3.13
+they will be normal classes; add `member` and `nonmember` functions to allow
+control over results now.
+
+..
+
+.. date: 2022-05-05-19-25-09
+.. gh-issue: 92356
+.. nonce: uvxWdu
+.. section: Library
+
+Fixed a performance regression in ctypes function calls.
+
+..
+
+.. date: 2022-05-05-17-35-01
+.. gh-issue: 90997
+.. nonce: UV5_s0
+.. section: Library
+
+Show the actual named values stored in inline caches when
+``show_caches=True`` is passed to :mod:`dis` utilities.
+
+..
+
+.. date: 2022-05-04-11-54-37
+.. gh-issue: 92301
+.. nonce: eqjoYX
+.. section: Library
+
+Prefer ``close_range()`` to iterating over procfs for file descriptor
+closing in :mod:`subprocess` for better performance.
+
+..
+
+.. date: 2022-05-03-19-06-38
+.. gh-issue: 67248
+.. nonce: DK61Go
+.. section: Library
+
+Sort the miscellaneous topics in Cmd.do_help()
+
+..
+
+.. date: 2022-05-03-17-33-46
+.. gh-issue: 92210
+.. nonce: csDOQM
+.. section: Library
+
+Port ``socket.__init__`` to Argument Clinic. Patch by Cinder.
+
+..
+
+.. date: 2022-05-03-12-11-27
+.. gh-issue: 80010
+.. nonce: yG54RE
+.. section: Library
+
+Add support for generalized ISO 8601 parsing to
+:meth:`datetime.datetime.fromisoformat`, :meth:`datetime.date.fromisoformat`
+and :meth:`datetime.time.fromisoformat`. Patch by Paul Ganssle.
+
+..
+
+.. date: 2022-05-02-23-08-02
+.. gh-issue: 92118
+.. nonce: 9Mm9g4
+.. section: Library
+
+Fix a 3.11 regression in :func:`~contextlib.contextmanager`, which caused it
+to propagate exceptions with incorrect tracebacks.
+
+..
+
+.. date: 2022-05-02-18-19-46
+.. gh-issue: 90887
+.. nonce: zQsmfp
+.. section: Library
+
+Adding ``COPYFILE_STAT``, ``COPYFILE_ACL`` and ``COPYFILE_XATTR`` constants
+for :func:`os.fcopyfile` available in macOs.
+
+..
+
+.. date: 2022-05-02-09-09-47
+.. gh-issue: 91215
+.. nonce: l1p7CJ
+.. section: Library
+
+For @dataclass, add weakref_slot. Default is False. If True, and if
+slots=True, add a slot named "__weakref__", which will allow instances to be
+weakref'd. Contributed by Eric V. Smith
+
+..
+
+.. date: 2022-05-02-03-56-50
+.. gh-issue: 85984
+.. nonce: RBivvc
+.. section: Library
+
+New function os.login_tty() for Unix.
+
+..
+
+.. date: 2022-05-01-21-45-41
+.. gh-issue: 92128
+.. nonce: Di7VbE
+.. section: Library
+
+Add :meth:`~object.__class_getitem__` to :class:`logging.LoggerAdapter` and
+:class:`logging.StreamHandler`, allowing them to be parameterized at
+runtime. Patch by Alex Waygood.
+
+..
+
+.. date: 2022-04-30-10-53-10
+.. gh-issue: 92049
+.. nonce: 5SEKoh
+.. section: Library
+
+Forbid pickling constants ``re._constants.SUCCESS`` etc. Previously,
+pickling did not fail, but the result could not be unpickled.
+
+..
+
+.. date: 2022-04-29-18-15-23
+.. gh-issue: 92062
+.. nonce: X2c_Rj
+.. section: Library
+
+:class:`inspect.Parameter` now raises :exc:`ValueError` if ``name`` is a
+keyword, in addition to the existing check that it is an identifier.
+
+..
+
+.. date: 2022-04-29-16-41-08
+.. gh-issue: 87390
+.. nonce: 3LNNCv
+.. section: Library
+
+Add an ``__unpacked__`` attribute to :class:`types.GenericAlias`. Patch by
+Jelle Zijlstra.
+
+..
+
+.. date: 2022-04-28-18-45-58
+.. gh-issue: 88089
+.. nonce: hu9kRk
+.. section: Library
+
+Add support for generic :class:`typing.NamedTuple`.
+
+..
+
+.. date: 2022-04-27-19-45-58
+.. gh-issue: 91996
+.. nonce: YEEIzk
+.. section: Library
+
+New http.HTTPMethod enum to represent all the available HTTP request methods
+in a convenient way
+
+..
+
+.. date: 2022-04-27-18-30-00
+.. gh-issue: 91984
+.. nonce: LxAB11
+.. section: Library
+
+Modified test strings in test_argparse.py to not contain trailing spaces
+before end of line.
+
+..
+
+.. date: 2022-04-27-18-04-24
+.. gh-issue: 91952
+.. nonce: 9A4RXx
+.. section: Library
+
+Add ``encoding="locale"`` support to :meth:`TextIOWrapper.reconfigure`.
+
+..
+
+.. date: 2022-04-27-13-30-26
+.. gh-issue: 91954
+.. nonce: cC7ga_
+.. section: Library
+
+Add *encoding* and *errors* arguments to :func:`subprocess.getoutput` and
+:func:`subprocess.getstatusoutput`.
+
+..
+
+.. bpo: 47029
+.. date: 2022-04-26-19-01-13
+.. nonce: qkT42X
+.. section: Library
+
+Always close the read end of the pipe used by :class:`multiprocessing.Queue`
+*after* the last write of buffered data to the write end of the pipe to
+avoid :exc:`BrokenPipeError` at garbage collection and at
+:meth:`multiprocessing.Queue.close` calls. Patch by Géry Ogam.
+
+..
+
+.. date: 2022-04-26-18-02-44
+.. gh-issue: 91928
+.. nonce: V0YveU
+.. section: Library
+
+Add `datetime.UTC` alias for `datetime.timezone.utc`.
+
+Patch by Kabir Kwatra.
+
+..
+
+.. date: 2022-04-26-09-09-07
+.. gh-issue: 68966
+.. nonce: roapI2
+.. section: Library
+
+The :mod:`mailcap` module is now deprecated and will be removed in Python
+3.13. See :pep:`594` for the rationale and the :mod:`mimetypes` module for
+an alternative. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-04-25-21-33-48
+.. gh-issue: 91401
+.. nonce: _Jo4Bu
+.. section: Library
+
+Provide a way to disable :mod:`subprocess` use of ``vfork()`` just in case
+it is ever needed and document the existing mechanism for ``posix_spawn()``.
+
+..
+
+.. date: 2022-04-25-18-30-20
+.. gh-issue: 64783
+.. nonce: HFtERN
+.. section: Library
+
+Fix :data:`signal.NSIG` value on FreeBSD to accept signal numbers greater
+than 32, like :data:`signal.SIGRTMIN` and :data:`signal.SIGRTMAX`. Patch by
+Victor Stinner.
+
+..
+
+.. date: 2022-04-25-14-18-01
+.. gh-issue: 91910
+.. nonce: kY-JR0
+.. section: Library
+
+Add missing f prefix to f-strings in error messages from the
+:mod:`multiprocessing` and :mod:`asyncio` modules.
+
+..
+
+.. date: 2022-04-23-08-06-36
+.. gh-issue: 91860
+.. nonce: ityDjK
+.. section: Library
+
+Add :func:`typing.dataclass_transform`, implementing :pep:`681`. Patch by
+Jelle Zijlstra.
+
+..
+
+.. date: 2022-04-23-03-24-00
+.. gh-issue: 91832
+.. nonce: TyLi65
+.. section: Library
+
+Add ``required`` attribute to :class:`argparse.Action` repr output.
+
+..
+
+.. date: 2022-04-22-19-11-31
+.. gh-issue: 91827
+.. nonce: 6P3gOI
+.. section: Library
+
+In the :mod:`tkinter` module add method ``info_patchlevel()`` which returns
+the exact version of the Tcl library as a named tuple similar to
+:data:`sys.version_info`.
+
+..
+
+.. date: 2022-04-22-13-01-20
+.. gh-issue: 84461
+.. nonce: rsCiTH
+.. section: Library
+
+Add :option:`--enable-wasm-pthreads` to enable pthreads support for WASM
+builds. ``Emscripten/node`` no longer has threading enabled by default.
+Include additional file systems.
+
+..
+
+.. date: 2022-04-22-08-25-18
+.. gh-issue: 91821
+.. nonce: XwMkj0
+.. section: Library
+
+Fix unstable ``test_from_tuple`` test in ``test_decimal.py``.
+
+..
+
+.. date: 2022-04-21-21-06-54
+.. gh-issue: 91217
+.. nonce: 2cVma_
+.. section: Library
+
+Deprecate the xdrlib module.
+
+..
+
+.. date: 2022-04-21-21-04-08
+.. gh-issue: 91217
+.. nonce: BZVEki
+.. section: Library
+
+Deprecate the uu module.
+
+..
+
+.. date: 2022-04-21-19-46-03
+.. gh-issue: 91760
+.. nonce: zDtv1E
+.. section: Library
+
+More strict rules will be applied for numerical group references and group
+names in regular expressions. For now, a deprecation warning is emitted for
+group references and group names which will be errors in future Python
+versions.
+
+..
+
+.. date: 2022-04-21-11-57-23
+.. gh-issue: 84461
+.. nonce: S7dbt4
+.. section: Library
+
+Add provisional :data:`sys._emscripten_info` named tuple with build-time and
+run-time information about Emscripten platform.
+
+..
+
+.. date: 2022-04-20-18-47-27
+.. gh-issue: 90623
+.. nonce: 5fROpX
+.. section: Library
+
+:func:`signal.raise_signal` and :func:`os.kill` now check immediately for
+pending signals. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-04-20-09-49-33
+.. gh-issue: 91734
+.. nonce: 4Dj4Gy
+.. section: Library
+
+Fix OSS audio support on Solaris.
+
+..
+
+.. date: 2022-04-19-19-50-10
+.. gh-issue: 90633
+.. nonce: Youov0
+.. section: Library
+
+Include the passed value in the exception thrown by
+:func:`typing.assert_never`. Patch by Jelle Zijlstra.
+
+..
+
+.. date: 2022-04-19-17-30-17
+.. gh-issue: 91700
+.. nonce: MRJi6m
+.. section: Library
+
+Compilation of regular expression containing a conditional expression
+``(?(group)...)`` now raises an appropriate :exc:`re.error` if the group
+number refers to not defined group. Previously an internal RuntimeError was
+raised.
+
+..
+
+.. date: 2022-04-19-15-30-06
+.. gh-issue: 91231
+.. nonce: AWy4Cs
+.. section: Library
+
+Add an optional keyword *shutdown_timeout* parameter to the
+:class:`multiprocessing.BaseManager` constructor. Kill the process if
+terminate() takes longer than the timeout. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-04-18-18-55-21
+.. gh-issue: 91621
+.. nonce: ACNlda
+.. section: Library
+
+Fix :func:`typing.get_type_hints` for :class:`collections.abc.Callable`.
+Patch by Shantanu Jain.
+
+..
+
+.. date: 2022-04-18-16-31-33
+.. gh-issue: 90568
+.. nonce: 9kiU7o
+.. section: Library
+
+Parsing ``\N`` escapes of Unicode Named Character Sequences in a
+:mod:`regular expression <re>` raises now :exc:`re.error` instead of
+``TypeError``.
+
+..
+
+.. date: 2022-04-18-15-23-24
+.. gh-issue: 91670
+.. nonce: 6eyChw
+.. section: Library
+
+Remove deprecated ``SO`` config variable in :mod:`sysconfig`.
+
+..
+
+.. date: 2022-04-17-12-41-52
+.. gh-issue: 91217
+.. nonce: 3wnHSX
+.. section: Library
+
+Deprecate the telnetlib module.
+
+..
+
+.. date: 2022-04-17-12-38-31
+.. gh-issue: 91217
+.. nonce: 55714p
+.. section: Library
+
+Deprecate the sunau module.
+
+..
+
+.. date: 2022-04-17-12-32-40
+.. gh-issue: 91217
+.. nonce: ms49Rg
+.. section: Library
+
+Deprecate the spwd module.
+
+..
+
+.. date: 2022-04-17-12-27-46
+.. gh-issue: 91217
+.. nonce: tNDWtK
+.. section: Library
+
+Deprecate the sndhdr module, as well as inline needed functionality for
+``email.mime.MIMEAudio``.
+
+..
+
+.. date: 2022-04-17-12-27-25
+.. gh-issue: 91616
+.. nonce: gSQg69
+.. section: Library
+
+:mod:`re` module, fix :meth:`~re.Pattern.fullmatch` mismatch when using
+Atomic Grouping or Possessive Quantifiers.
+
+..
+
+.. date: 2022-04-17-12-07-50
+.. gh-issue: 91217
+.. nonce: TIvrsq
+.. section: Library
+
+Deprecate the 'pipes' module.
+
+..
+
+.. date: 2022-04-17-11-56-17
+.. gh-issue: 91217
+.. nonce: McJre3
+.. section: Library
+
+Deprecate the ossaudiodev module.
+
+..
+
+.. bpo: 47256
+.. date: 2022-04-16-11-39-59
+.. nonce: 1cygyd
+.. section: Library
+
+:mod:`re` module, limit the maximum capturing group to 1,073,741,823 in
+64-bit build, this increases the depth of backtracking.
+
+..
+
+.. date: 2022-04-16-09-33-14
+.. gh-issue: 91217
+.. nonce: nt9JFs
+.. section: Library
+
+Deprecate the nis module.
+
+..
+
+.. date: 2022-04-16-05-12-13
+.. gh-issue: 91595
+.. nonce: CocJBv
+.. section: Library
+
+Fix the comparison of character and integer inside
+:func:`Tools.gdb.libpython.write_repr`. Patch by Yu Liu.
+
+..
+
+.. date: 2022-04-15-20-56-31
+.. gh-issue: 74166
+.. nonce: 70KlvL
+.. section: Library
+
+Add option to raise all errors from :meth:`~socket.create_connection` in an
+:exc:`ExceptionGroup` when it fails to create a connection. The default
+remains to raise only the last error that had occurred when multiple
+addresses were tried.
+
+..
+
+.. date: 2022-04-15-19-34-02
+.. gh-issue: 91487
+.. nonce: 2aqguF
+.. section: Library
+
+Optimize asyncio UDP speed, over 100 times faster when transferring a large
+file.
+
+..
+
+.. date: 2022-04-15-18-38-21
+.. gh-issue: 91575
+.. nonce: fSyAxS
+.. section: Library
+
+Update case-insensitive matching in the :mod:`re` module to the latest
+Unicode version.
+
+..
+
+.. date: 2022-04-15-18-32-38
+.. gh-issue: 90622
+.. nonce: WQjFDe
+.. section: Library
+
+In ``concurrent.futures.process.ProcessPoolExecutor`` disallow the "fork"
+multiprocessing start method when the new ``max_tasks_per_child`` feature is
+used as the mix of threads+fork can hang the child processes. Default to
+using the safe "spawn" start method in that circumstance if no
+``mp_context`` was supplied.
+
+..
+
+.. date: 2022-04-15-17-06-09
+.. gh-issue: 89022
+.. nonce: DgdQCa
+.. section: Library
+
+In :mod:`sqlite3`, ``SQLITE_MISUSE`` result codes are now mapped to
+:exc:`~sqlite3.InterfaceError` instead of :exc:`~sqlite3.ProgrammingError`.
+Also, more accurate exceptions are raised when binding parameters fail.
+Patch by Erlend E. Aasland.
+
+..
+
+.. date: 2022-04-14-18-06-00
+.. gh-issue: 91526
+.. nonce: cwfhSB
+.. section: Library
+
+Stop calling ``os.device_encoding(file.fileno())`` in
+:class:`TextIOWrapper`. It was complex, never documented, and didn't work
+for most cases. (Patch by Inada Naoki.)
+
+..
+
+.. date: 2022-04-14-13-11-37
+.. gh-issue: 88116
+.. nonce: j_SybE
+.. section: Library
+
+Change the frame-related functions in the :mod:`inspect` module to return a
+regular object (that is backwards compatible with the old tuple-like
+interface) that include the extended :pep:`657` position information (end
+line number, column and end column). The affected functions are:
+:func:`inspect.getframeinfo`, :func:`inspect.getouterframes`,
+:func:`inspect.getinnerframes`, :func:`inspect.stack` and
+:func:`inspect.trace`. Patch by Pablo Galindo.
+
+..
+
+.. date: 2022-04-14-01-00-31
+.. gh-issue: 69093
+.. nonce: bmlMwI
+.. section: Library
+
+Add indexing and slicing support to :class:`sqlite3.Blob`. Patch by Aviv
+Palivoda and Erlend E. Aasland.
+
+..
+
+.. date: 2022-04-14-00-59-01
+.. gh-issue: 69093
+.. nonce: bmlMwI
+.. section: Library
+
+Add :term:`context manager` support to :class:`sqlite3.Blob`. Patch by Aviv
+Palivoda and Erlend E. Aasland.
+
+..
+
+.. date: 2022-04-12-20-19-10
+.. gh-issue: 91217
+.. nonce: acd4h9
+.. section: Library
+
+Deprecate nntplib.
+
+..
+
+.. date: 2022-04-12-19-42-20
+.. gh-issue: 91217
+.. nonce: b9_Rz9
+.. section: Library
+
+Deprecate msilib.
+
+..
+
+.. date: 2022-04-12-19-08-13
+.. gh-issue: 91404
+.. nonce: zjqYHo
+.. section: Library
+
+Improve the performance of :mod:`re` matching by using computed gotos (or
+"threaded code") on supported platforms and removing expensive pointer
+indirections.
+
+..
+
+.. date: 2022-04-11-17-04-38
+.. gh-issue: 91217
+.. nonce: QVDLOq
+.. section: Library
+
+Deprecate the imghdr module.
+
+..
+
+.. date: 2022-04-11-16-13-26
+.. gh-issue: 91217
+.. nonce: 2rf8rc
+.. section: Library
+
+Deprecate the crypt module.
+
+..
+
+.. date: 2022-04-11-13-07-30
+.. gh-issue: 91276
+.. nonce: Vttu15
+.. section: Library
+
+Make space for longer opcodes in :mod:`dis` output.
+
+..
+
+.. bpo: 47000
+.. date: 2022-04-10-17-50-18
+.. nonce: JlQkFx
+.. section: Library
+
+Make :class:`TextIOWrapper` uses locale encoding when ``encoding="locale"``
+is specified even in UTF-8 mode.
+
+..
+
+.. date: 2022-04-10-17-12-23
+.. gh-issue: 91230
+.. nonce: T1d_fG
+.. section: Library
+
+:func:`warnings.catch_warnings` now accepts arguments for
+:func:`warnings.simplefilter`, providing a more concise way to locally
+ignore warnings or convert them to errors.
+
+..
+
+.. date: 2022-04-10-11-11-33
+.. gh-issue: 91217
+.. nonce: K82AuH
+.. section: Library
+
+Deprecate the chunk module.
+
+..
+
+.. gh: 91498
+.. date: 2022-04-10-08-39-44
+.. nonce: 8oII92
+.. section: Library
+
+Add the ``TCP_CONNECTION_INFO`` option (available on macOS) to
+:mod:`socket`.
+
+..
+
+.. bpo: 47260
+.. date: 2022-04-08-14-30-53
+.. nonce: TtcNxI
+.. section: Library
+
+Fix ``os.closerange()`` potentially being a no-op in a Linux seccomp
+sandbox.
+
+..
+
+.. bpo: 47087
+.. date: 2022-04-08-08-55-36
+.. nonce: Q5C3EI
+.. section: Library
+
+Implement ``typing.Required`` and ``typing.NotRequired`` (:pep:`655`). Patch
+by David Foster and Jelle Zijlstra.
+
+..
+
+.. bpo: 47061
+.. date: 2022-04-07-20-32-47
+.. nonce: TOufgh
+.. section: Library
+
+Deprecate cgi and cgitb.
+
+..
+
+.. bpo: 47061
+.. date: 2022-04-06-18-01-28
+.. nonce: qoVTR9
+.. section: Library
+
+Deprecate audioop.
+
+..
+
+.. bpo: 47000
+.. date: 2022-04-06-11-54-53
+.. nonce: 2nmAR1
+.. section: Library
+
+Add :func:`locale.getencoding` to get the current locale encoding. It is
+similar to ``locale.getpreferredencoding(False)`` but ignores the
+:ref:`Python UTF-8 Mode <utf8-mode>`.
+
+..
+
+.. bpo: 42012
+.. date: 2022-04-05-17-18-13
+.. nonce: zMocQz
+.. section: Library
+
+Add :mod:`wsgiref.types`, containing WSGI-specific types for static type
+checking.
+
+..
+
+.. bpo: 47227
+.. date: 2022-04-05-15-53-58
+.. nonce: 1HWdp9
+.. section: Library
+
+Suppress expression chaining for more :mod:`re` parsing errors.
+
+..
+
+.. bpo: 47211
+.. date: 2022-04-04-11-58-07
+.. nonce: W4GFkB
+.. section: Library
+
+Remove undocumented and never working function ``re.template()`` and flag
+``re.TEMPLATE``.
+This was later reverted in 3.11.0b2 and deprecated instead.
+
+..
+
+.. bpo: 47135
+.. date: 2022-04-01-21-44-00
+.. nonce: TvkKB-
+.. section: Library
+
+:meth:`decimal.localcontext` now accepts context attributes via keyword
+arguments
+
+..
+
+.. bpo: 43323
+.. date: 2022-03-27-12-40-16
+.. nonce: 9mFPuI
+.. section: Library
+
+Fix errors in the :mod:`email` module if the charset itself contains
+undecodable/unencodable characters.
+
+..
+
+.. bpo: 46841
+.. date: 2022-03-25-22-18-45
+.. nonce: NUEsXW
+.. section: Library
+
+Disassembly of quickened code.
+
+..
+
+.. bpo: 46681
+.. date: 2022-03-21-13-50-07
+.. nonce: RRhopn
+.. section: Library
+
+Forward gzip.compress() compresslevel to zlib.
+
+..
+
+.. bpo: 45100
+.. date: 2022-03-06-18-15-32
+.. nonce: B_lHu0
+.. section: Library
+
+Add :func:`typing.get_overloads` and :func:`typing.clear_overloads`. Patch
+by Jelle Zijlstra.
+
+..
+
+.. bpo: 44807
+.. date: 2022-03-02-04-25-58
+.. nonce: gHNC9J
+.. section: Library
+
+:class:`typing.Protocol` no longer silently replaces :meth:`__init__`
+methods defined on subclasses. Patch by Adrian Garcia Badaracco.
+
+..
+
+.. bpo: 46787
+.. date: 2022-02-18-20-09-29
+.. nonce: juwWc0
+.. section: Library
+
+Fix :class:`concurrent.futures.ProcessPoolExecutor` exception memory leak
+
+..
+
+.. bpo: 46720
+.. date: 2022-02-11-23-11-35
+.. nonce: nY8spB
+.. section: Library
+
+Add support for path-like objects to :func:`multiprocessing.set_executable`
+for Windows to be on a par with Unix-like systems. Patch by Géry Ogam.
+
+..
+
+.. bpo: 46696
+.. date: 2022-02-09-21-40-02
+.. nonce: nPXRno
+.. section: Library
+
+Add ``SO_INCOMING_CPU`` constant to :mod:`socket`.
+
+..
+
+.. bpo: 46053
+.. date: 2022-02-06-12-59-32
+.. nonce: sHFo3S
+.. section: Library
+
+Fix OSS audio support on NetBSD.
+
+..
+
+.. bpo: 45639
+.. date: 2022-02-02-04-51-39
+.. nonce: N8XrGO
+.. section: Library
+
+``image/avif`` and ``image/webp`` were added to :mod:`mimetypes`.
+
+..
+
+.. bpo: 46285
+.. date: 2022-01-29-00-23-00
+.. nonce: pt84qm
+.. section: Library
+
+Add command-line option ``-p``/``--protocol`` to module :mod:`http.server`
+which specifies the HTTP version to which the server is conformant (HTTP/1.1
+conformant servers can now be run from the command-line interface of module
+:mod:`http.server`). Patch by Géry Ogam.
+
+..
+
+.. bpo: 44791
+.. date: 2022-01-27-14-46-15
+.. nonce: tR1JFG
+.. section: Library
+
+Accept ellipsis as the last argument of :data:`typing.Concatenate`.
+
+..
+
+.. bpo: 46547
+.. date: 2022-01-27-14-41-55
+.. nonce: JMyYz9
+.. section: Library
+
+Remove variables leaking into ``pydoc.Helper`` class namespace.
+
+..
+
+.. bpo: 46415
+.. date: 2022-01-17-16-53-30
+.. nonce: 6wSYg-
+.. section: Library
+
+Fix ipaddress.ip_{address,interface,network} raising TypeError instead of
+ValueError if given invalid tuple as address parameter.
+
+..
+
+.. bpo: 46075
+.. date: 2021-12-14-21-19-04
+.. nonce: KDtcU-
+.. section: Library
+
+``CookieJar`` with ``DefaultCookiePolicy`` now can process cookies from
+localhost with domain=localhost explicitly specified in Set-Cookie header.
+
+..
+
+.. bpo: 45995
+.. date: 2021-12-14-13-15-41
+.. nonce: Am9pNL
+.. section: Library
+
+Add a "z" option to the string formatting specification that coerces
+negative zero floating-point values to positive zero after rounding to the
+format precision. Contributed by John Belmonte.
+
+..
+
+.. bpo: 26175
+.. date: 2021-11-14-01-35-04
+.. nonce: LNlOfI
+.. section: Library
+
+Fully implement the :class:`io.BufferedIOBase` or :class:`io.TextIOBase`
+interface for :class:`tempfile.SpooledTemporaryFile` objects. This lets them
+work correctly with higher-level layers (like compression modules). Patch by
+Carey Metcalfe.
+
+..
+
+.. bpo: 45138
+.. date: 2021-09-08-16-21-03
+.. nonce: yghUrK
+.. section: Library
+
+Fix a regression in the :mod:`sqlite3` trace callback where bound parameters
+were not expanded in the passed statement string. The regression was
+introduced in Python 3.10 by :issue:`40318`. Patch by Erlend E. Aasland.
+
+..
+
+.. bpo: 44863
+.. date: 2021-09-03-07-56-48
+.. nonce: udgz95
+.. section: Library
+
+Allow :class:`~typing.TypedDict` subclasses to also include
+:class:`~typing.Generic` as a base class in class based syntax. Thereby
+allowing the user to define a generic ``TypedDict``, just like a
+user-defined generic but with ``TypedDict`` semantics.
+
+..
+
+.. bpo: 44587
+.. date: 2021-08-17-21-41-39
+.. nonce: 57OKSz
+.. section: Library
+
+Fix BooleanOptionalAction to not automatically add a default string. If a
+default string is desired, use a formatter to add it.
+
+..
+
+.. bpo: 43827
+.. date: 2021-04-16-17-32-44
+.. nonce: uJaXdP
+.. section: Library
+
+All positional-or-keyword parameters to ``ABCMeta.__new__`` are now
+positional-only to avoid conflicts with keyword arguments to be passed to
+:meth:`__init_subclass__`.
+
+..
+
+.. bpo: 43218
+.. date: 2021-02-14-20-55-53
+.. nonce: VZv2M4
+.. section: Library
+
+Prevent creation of a venv whose path contains the PATH separator. This
+could affect the usage of the activate script. Patch by Dustin Rodrigues.
+
+..
+
+.. bpo: 38435
+.. date: 2020-12-24-19-11-53
+.. nonce: rEHTAR
+.. section: Library
+
+Add a ``process_group`` parameter to :class:`subprocess.Popen` to help move
+more things off of the unsafe ``preexec_fn`` parameter.
+
+..
+
+.. bpo: 42066
+.. date: 2020-10-19-08-50-41
+.. nonce: DsB-R6
+.. section: Library
+
+Fix cookies getting sorted in :func:`CookieJar.__iter__` which is an extra
+behavior and not mentioned in RFC 2965 or Netscape cookie protocol. Now the
+cookies in ``CookieJar`` follows the order of the ``Set-Cookie`` header.
+Patch by Iman Kermani.
+
+..
+
+.. bpo: 40617
+.. date: 2020-05-24-23-52-03
+.. nonce: lycF9q
+.. section: Library
+
+Add :meth:`~sqlite3.Connection.create_window_function` to
+:class:`sqlite3.Connection` for creating aggregate window functions. Patch
+by Erlend E. Aasland.
+
+..
+
+.. bpo: 40676
+.. date: 2020-05-19-01-40-51
+.. nonce: yJfq1J
+.. section: Library
+
+Convert :mod:`csv` to use Argument Clinic for :func:`csv.field_size_limit`,
+:func:`csv.get_dialect`, :func:`csv.unregister_dialect` and
+:func:`csv.list_dialects`.
+
+..
+
+.. bpo: 39716
+.. date: 2020-02-22-12-02-11
+.. nonce: z2WhDQ
+.. section: Library
+
+Raise an ArgumentError when the same subparser name is added twice to an
+`argparse.ArgumentParser`. This is consistent with the (default) behavior
+when the same option string is added twice to an ArgumentParser.
+
+..
+
+.. bpo: 36073
+.. date: 2019-06-22-11-01-45
+.. nonce: ED8mB9
+.. section: Library
+
+Raise :exc:`~sqlite3.ProgrammingError` instead of segfaulting on recursive
+usage of cursors in :mod:`sqlite3` converters. Patch by Sergey Fedoseev.
+
+..
+
+.. bpo: 34975
+.. date: 2019-05-06-23-36-34
+.. nonce: eb49jr
+.. section: Library
+
+Adds a ``start_tls()`` method to :class:`~asyncio.streams.StreamWriter`,
+which upgrades the connection with TLS using the given
+:class:`~ssl.SSLContext`.
+
+..
+
+.. bpo: 22276
+.. date: 2018-11-11-04-41-11
+.. nonce: Tt19TW
+.. section: Library
+
+:class:`~pathlib.Path` methods :meth:`~pathlib.Path.glob` and
+:meth:`~pathlib.Path.rglob` return only directories if *pattern* ends with a
+pathname components separator (``/`` or :data:`~os.sep`). Patch by Eisuke
+Kawashima.
+
+..
+
+.. bpo: 24905
+.. date: 2018-04-18-16-15-55
+.. nonce: jYqjYx
+.. section: Library
+
+Add :meth:`~sqlite3.Connection.blobopen` to :class:`sqlite3.Connection`.
+:class:`sqlite3.Blob` allows incremental I/O operations on blobs. Patch by
+Aviv Palivoda and Erlend E. Aasland.
+
+..
+
+.. date: 2022-04-24-22-09-31
+.. gh-issue: 91888
+.. nonce: kTjJLx
+.. section: Documentation
+
+Add a new `gh` role to the documentation to link to GitHub issues.
+
+..
+
+.. date: 2022-04-23-00-22-54
+.. gh-issue: 91783
+.. nonce: N09dRR
+.. section: Documentation
+
+Document security issues concerning the use of the function
+:meth:`shutil.unpack_archive`
+
+..
+
+.. date: 2022-04-19-20-16-00
+.. gh-issue: 91547
+.. nonce: LsNWER
+.. section: Documentation
+
+Remove "Undocumented modules" page.
+
+..
+
+.. date: 2022-04-17-03-19-51
+.. gh-issue: 91298
+.. nonce: NT9qHi
+.. section: Documentation
+
+In ``importlib.resources.abc``, refined the documentation of the Traversable
+Protocol, applying changes from importlib_resources 5.7.1.
+
+..
+
+.. bpo: 44347
+.. date: 2022-04-10-20-28-20
+.. nonce: Q1m3DM
+.. section: Documentation
+
+Clarify the meaning of *dirs_exist_ok*, a kwarg of :func:`shutil.copytree`.
+
+..
+
+.. bpo: 36329
+.. date: 2022-04-06-11-53-41
+.. nonce: EVtAtK
+.. section: Documentation
+
+Remove 'make -C Doc serve' in favour of 'make -C Doc htmlview'
+
+..
+
+.. bpo: 47189
+.. date: 2022-04-01-23-56-13
+.. nonce: Nss0Y3
+.. section: Documentation
+
+Add a What's New in Python 3.11 entry for the Faster CPython project.
+Documentation by Ken Jin and Kumar Aditya.
+
+..
+
+.. bpo: 38668
+.. date: 2022-04-01-09-28-31
+.. nonce: j4mrqW
+.. section: Documentation
+
+Update the introduction to documentation for :mod:`os.path` to remove
+warnings that became irrelevant after the implementations of :pep:`383` and
+:pep:`529`.
+
+..
+
+.. bpo: 47115
+.. date: 2022-03-30-17-08-12
+.. nonce: R3wt3i
+.. section: Documentation
+
+The documentation now lists which members of C structs are part of the
+:ref:`Limited API/Stable ABI <stable>`.
+
+..
+
+.. bpo: 46962
+.. date: 2022-03-08-22-10-38
+.. nonce: FIVe9I
+.. section: Documentation
+
+All docstrings in code snippets are now wrapped into :func:`PyDoc_STR` to
+follow the guideline of `PEP 7's Documentation Strings paragraph
+<https://www.python.org/dev/peps/pep-0007/#documentation-strings>`_. Patch
+by Oleg Iarygin.
+
+..
+
+.. bpo: 26792
+.. date: 2022-01-23-20-44-53
+.. nonce: dQ1v1W
+.. section: Documentation
+
+Improve the docstrings of :func:`runpy.run_module` and
+:func:`runpy.run_path`. Original patch by Andrew Brezovsky.
+
+..
+
+.. date: 2022-05-02-20-57-04
+.. gh-issue: 92169
+.. nonce: Xi4NGV
+.. section: Tests
+
+Use ``warnings_helper.import_deprecated()`` to import deprecated modules
+uniformly in tests. Patch by Hugo van Kemenade.
+
+..
+
+.. date: 2022-05-02-20-15-54
+.. gh-issue: 84461
+.. nonce: DhxllI
+.. section: Tests
+
+When multiprocessing is enabled, libregrtest can now use a Python executable
+other than :code:`sys.executable` via the ``--python`` flag.
+
+..
+
+.. date: 2022-04-25-11-16-36
+.. gh-issue: 91904
+.. nonce: 13Uvrz
+.. section: Tests
+
+Fix initialization of :envvar:`PYTHONREGRTEST_UNICODE_GUARD` which prevented
+running regression tests on non-UTF-8 locale.
+
+..
+
+.. date: 2022-04-22-19-00-00
+.. gh-issue: 91752
+.. nonce: Ji27dd
+.. section: Tests
+
+Added @requires_zlib to test.test_tools.test_freeze.TestFreeze.
+
+..
+
+.. date: 2022-04-16-17-54-05
+.. gh-issue: 91607
+.. nonce: FnXjtW
+.. section: Tests
+
+Fix ``test_concurrent_futures`` to test the correct multiprocessing start
+method context in several cases where the test logic mixed this up.
+
+..
+
+.. bpo: 40280
+.. date: 2022-04-06-10-16-27
+.. nonce: KT5Apg
+.. section: Tests
+
+Threading tests are now skipped on WASM targets without pthread support.
+
+..
+
+.. bpo: 47109
+.. date: 2022-03-24-13-35-01
+.. nonce: FjKQCE
+.. section: Tests
+
+Test for :mod:`ctypes.macholib.dyld`, :mod:`ctypes.macholib.dylib`, and
+:mod:`ctypes.macholib.framework` are brought from manual pre-:mod:`unittest`
+times to :mod:`ctypes.test` location and structure. Patch by Oleg Iarygin.
+
+..
+
+.. bpo: 29890
+.. date: 2022-01-24-21-31-09
+.. nonce: zEG-ra
+.. section: Tests
+
+Add tests for :class:`ipaddress.IPv4Interface` and
+:class:`ipaddress.IPv6Interface` construction with tuple arguments. Original
+patch and tests by louisom.
+
+..
+
+.. date: 2022-05-03-03-36-47
+.. gh-issue: 89452
+.. nonce: NIY0fF
+.. section: Build
+
+gdbm-compat is now preferred over ndbm if both are available on the system.
+This allows avoiding the problematic ndbm.h on macOS.
+
+..
+
+.. date: 2022-04-20-11-14-51
+.. gh-issue: 91731
+.. nonce: zRoPcJ
+.. section: Build
+
+Python is now built with ``-std=c11`` compiler option, rather than
+``-std=c99``. Patch by Victor Stinner.
+
+..
+
+.. bpo: 47152
+.. date: 2022-04-10-16-33-31
+.. nonce: TLkxKm
+.. section: Build
+
+Add script and make target for generating ``sre_constants.h``.
+
+..
+
+.. bpo: 47103
+.. date: 2022-03-23-20-01-16
+.. nonce: b4-00F
+.. section: Build
+
+Windows ``PGInstrument`` builds now copy a required DLL into the output
+directory, making it easier to run the profile stage of a PGO build.
+
+..
+
+.. bpo: 46907
+.. date: 2022-04-27-19-36-56
+.. nonce: lfurlP
+.. section: Windows
+
+Update Windows installer to use SQLite 3.38.3.
+
+..
+
+.. bpo: 47239
+.. date: 2022-04-06-15-16-37
+.. nonce: B1HP7i
+.. section: Windows
+
+Fixed --list and --list-paths output for :ref:`launcher` when used in an
+active virtual environment.
+
+..
+
+.. bpo: 46907
+.. date: 2022-03-28-07-01-31
+.. nonce: Ou3G6Z
+.. section: Windows
+
+Update Windows installer to use SQLite 3.38.2.
+
+..
+
+.. bpo: 46785
+.. date: 2022-03-13-20-35-41
+.. nonce: Pnknyl
+.. section: Windows
+
+Fix race condition between :func:`os.stat` and unlinking a file on Windows,
+by using errors codes returned by ``FindFirstFileW()`` when appropriate in
+``win32_xstat_impl``.
+
+..
+
+.. bpo: 40859
+.. date: 2020-06-04-10-42-04
+.. nonce: isKSw7
+.. section: Windows
+
+Update Windows build to use xz-5.2.5
+
+..
+
+.. bpo: 46907
+.. date: 2022-05-05-06-21-39
+.. nonce: dkgFPk
+.. section: macOS
+
+Update macOS installer to SQLite 3.38.4.
+
+..
+
+.. date: 2022-04-20-14-26-14
+.. gh-issue: 91583
+.. nonce: 200qI0
+.. section: Tools/Demos
+
+Fix regression in the code generated by Argument Clinic for functions with
+the ``defining_class`` parameter.
+
+..
+
+.. date: 2022-04-18-12-52-16
+.. gh-issue: 91575
+.. nonce: fK1TEh
+.. section: Tools/Demos
+
+Add script ``Tools/scripts/generate_re_casefix.py`` and the make target
+``regen-re`` for generating additional data for case-insensitive matching
+according to the current Unicode version.
+
+..
+
+.. date: 2022-04-14-18-11-46
+.. gh-issue: 91551
+.. nonce: l_nNT-
+.. section: Tools/Demos
+
+Remove the ancient Pynche color editor. It has moved to
+https://gitlab.com/warsaw/pynche
+
+..
+
+.. date: 2022-05-06-04-55-17
+.. gh-issue: 88279
+.. nonce: 3mQ54t
+.. section: C API
+
+Deprecate the C functions: :c:func:`PySys_SetArgv`,
+:c:func:`PySys_SetArgvEx`, :c:func:`PySys_SetPath`. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-05-03-20-08-35
+.. gh-issue: 92154
+.. nonce: IqMcAJ
+.. section: C API
+
+Added the :c:func:`PyCode_GetCode` function. This function does the
+equivalent of the Python code ``getattr(code_object, 'co_code')``.
+
+..
+
+.. date: 2022-05-02-12-39-33
+.. gh-issue: 92173
+.. nonce: len2Is
+.. section: C API
+
+Fix the ``closure`` argument to :c:func:`PyEval_EvalCodeEx`.
+
+..
+
+.. date: 2022-04-26-16-51-31
+.. gh-issue: 91320
+.. nonce: QDHmTv
+.. section: C API
+
+Fix C++ compiler warnings about "old-style cast" (``g++ -Wold-style-cast``)
+in the Python C API. Use C++ ``reinterpret_cast<>`` and ``static_cast<>``
+casts when the Python C API is used in C++. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-04-21-23-11-35
+.. gh-issue: 80527
+.. nonce: Cx-95G
+.. section: C API
+
+Mark functions as deprecated by :pep:`623`: :c:func:`PyUnicode_AS_DATA`,
+:c:func:`PyUnicode_AS_UNICODE`, :c:func:`PyUnicode_GET_DATA_SIZE`,
+:c:func:`PyUnicode_GET_SIZE`. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-04-21-01-48-22
+.. gh-issue: 91768
+.. nonce: x_aKzv
+.. section: C API
+
+:c:func:`Py_REFCNT`, :c:func:`Py_TYPE`, :c:func:`Py_SIZE` and
+:c:func:`Py_IS_TYPE` functions argument type is now ``PyObject*``, rather
+than ``const PyObject*``. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-04-19-17-05-39
+.. gh-issue: 91020
+.. nonce: BVJ8F3
+.. section: C API
+
+Add ``PyBytes_Type.tp_alloc`` to initialize ``PyBytesObject.ob_shash`` for
+bytes subclasses.
+
+..
+
+.. bpo: 40421
+.. date: 2022-04-08-11-29-36
+.. nonce: H0ORmT
+.. section: C API
+
+Add ``PyFrame_GetLasti`` C-API function to access frame object's ``f_lasti``
+attribute safely from C code.
+
+..
+
+.. bpo: 35134
+.. date: 2022-04-07-00-53-51
+.. nonce: zSjIzk
+.. section: C API
+
+Remove the ``Include/code.h`` header file. C extensions should only include
+the main ``<Python.h>`` header file. Patch by Victor Stinner.
+
+..
+
+.. bpo: 47169
+.. date: 2022-04-06-16-54-39
+.. nonce: EGzX4B
+.. section: C API
+
+:c:func:`PyOS_CheckStack` is now exported in the Stable ABI on Windows.
+
+..
+
+.. bpo: 47169
+.. date: 2022-04-06-16-29-14
+.. nonce: wVv2bT
+.. section: C API
+
+:c:func:`PyThread_get_thread_native_id` is excluded from the stable ABI on
+platforms where it doesn't exist (like Solaris).
+
+..
+
+.. bpo: 46343
+.. date: 2022-01-11-12-52-37
+.. nonce: JQJWhZ
+.. section: C API
+
+Added :c:func:`PyErr_GetHandledException` and
+:c:func:`PyErr_SetHandledException` as simpler alternatives to
+:c:func:`PyErr_GetExcInfo` and :c:func:`PyErr_SetExcInfo`.
+
+They are included in the stable ABI.
--- /dev/null
+.. date: 2022-05-25-12-30-12
+.. gh-issue: 84694
+.. nonce: 5sjy2w
+.. release date: 2022-05-30
+.. section: Core and Builtins
+
+The ``--experimental-isolated-subinterpreters`` configure option and
+``EXPERIMENTAL_ISOLATED_SUBINTERPRETERS`` macro have been removed.
+
+..
+
+.. date: 2022-05-25-04-07-22
+.. gh-issue: 91924
+.. nonce: -UyO4q
+.. section: Core and Builtins
+
+Fix ``__lltrace__`` debug feature if the stdout encoding is not UTF-8. Patch
+by Victor Stinner.
+
+..
+
+.. date: 2022-05-22-02-37-50
+.. gh-issue: 93061
+.. nonce: r70Imp
+.. section: Core and Builtins
+
+Backward jumps after ``async for`` loops are no longer given dubious line
+numbers.
+
+..
+
+.. date: 2022-05-21-23-21-37
+.. gh-issue: 93065
+.. nonce: 5I18WC
+.. section: Core and Builtins
+
+Fix contextvars HAMT implementation to handle iteration over deep trees.
+
+The bug was discovered and fixed by Eli Libman. See
+`MagicStack/immutables#84
+<https://github.com/MagicStack/immutables/issues/84>`_ for more details.
+
+..
+
+.. date: 2022-05-15-15-25-05
+.. gh-issue: 90473
+.. nonce: MoPHYW
+.. section: Core and Builtins
+
+Decrease default recursion limit on WASI to address limited call stack size.
+
+..
+
+.. date: 2022-05-14-13-22-11
+.. gh-issue: 92804
+.. nonce: rAqpI2
+.. section: Core and Builtins
+
+Fix memory leak in ``memoryview`` iterator as it was not finalized at exit.
+Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-05-12-13-23-19
+.. gh-issue: 92236
+.. nonce: sDRzUe
+.. section: Core and Builtins
+
+Remove spurious "LINE" event when starting a generator or coroutine, visible
+tracing functions implemented in C.
+
+..
+
+.. date: 2022-05-10-11-34-35
+.. gh-issue: 92619
+.. nonce: u0V0lY
+.. section: Core and Builtins
+
+Make the compiler duplicate an exit block only if none of its instructions
+have a lineno (previously only the first instruction in the block was
+checked, leading to unnecessarily duplicated blocks).
+
+..
+
+.. date: 2022-05-03-20-12-18
+.. gh-issue: 92261
+.. nonce: aigLnb
+.. section: Core and Builtins
+
+Fix hang when trying to iterate over a ``typing.Union``.
+
+..
+
+.. date: 2022-05-27-13-18-18
+.. gh-issue: 93297
+.. nonce: e2zuHz
+.. section: Library
+
+Make asyncio task groups prevent child tasks from being GCed
+
+..
+
+.. date: 2022-05-25-02-45-41
+.. gh-issue: 90817
+.. nonce: yxANgU
+.. section: Library
+
+The :func:`locale.resetlocale` function is deprecated and will be removed in
+Python 3.13. Use ``locale.setlocale(locale.LC_ALL, "")`` instead. Patch by
+Victor Stinner.
+
+..
+
+.. date: 2022-05-24-10-59-02
+.. gh-issue: 92728
+.. nonce: zxTifq
+.. section: Library
+
+The :func:`re.template` function and the corresponding :const:`re.TEMPLATE`
+and :const:`re.T` flags are restored after they were removed in 3.11.0b1,
+but they are now deprecated, so they might be removed from Python 3.13.
+
+..
+
+.. date: 2022-05-21-13-16-16
+.. gh-issue: 93044
+.. nonce: eJ_XkZ
+.. section: Library
+
+No longer convert the database argument of :func:`sqlite3.connect` to bytes
+before passing it to the factory.
+
+..
+
+.. date: 2022-05-20-15-52-43
+.. gh-issue: 93010
+.. nonce: WF-cAc
+.. section: Library
+
+In a very special case, the email package tried to append the nonexistent
+``InvalidHeaderError`` to the defect list. It should have been
+``InvalidHeaderDefect``.
+
+..
+
+.. date: 2022-05-19-13-33-18
+.. gh-issue: 92675
+.. nonce: ZeerMZ
+.. section: Library
+
+Fix :func:`venv.ensure_directories` to accept :class:`pathlib.Path`
+arguments in addition to :class:`str` paths. Patch by David Foster.
+
+..
+
+.. date: 2022-05-18-21-04-09
+.. gh-issue: 87901
+.. nonce: lnf041
+.. section: Library
+
+Removed the ``encoding`` argument from :func:`os.popen` that was added in
+3.11b1.
+
+..
+
+.. date: 2022-05-18-17-18-41
+.. gh-issue: 91922
+.. nonce: DwWIsJ
+.. section: Library
+
+Fix function :func:`sqlite.connect` and the :class:`sqlite.Connection`
+constructor on non-UTF-8 locales. Also, they now support bytes paths
+non-decodable with the current FS encoding.
+
+..
+
+.. date: 2022-05-16-14-35-39
+.. gh-issue: 92839
+.. nonce: owSMyo
+.. section: Library
+
+Fixed crash resulting from calling bisect.insort() or bisect.insort_left()
+with the key argument not equal to None.
+
+..
+
+.. date: 2022-05-14-11-41-23
+.. gh-issue: 90473
+.. nonce: kPdOZl
+.. section: Library
+
+:mod:`subprocess` now fails early on Emscripten and WASI platforms to work
+around missing :func:`os.pipe` on WASI.
+
+..
+
+.. date: 2022-05-11-19-33-27
+.. gh-issue: 92671
+.. nonce: KE4v6a
+.. section: Library
+
+Fixed :func:`ast.unparse` for empty tuples in the assignment target context.
+
+..
+
+.. date: 2022-05-11-14-34-09
+.. gh-issue: 91581
+.. nonce: glkou2
+.. section: Library
+
+:meth:`~datetime.datetime.utcfromtimestamp` no longer attempts to resolve
+``fold`` in the pure Python implementation, since the fold is never 1 in
+UTC. In addition to being slightly faster in the common case, this also
+prevents some errors when the timestamp is close to :attr:`datetime.min
+<datetime.datetime.min>`. Patch by Paul Ganssle.
+
+..
+
+.. date: 2022-05-10-07-57-27
+.. gh-issue: 92550
+.. nonce: Rk_UzM
+.. section: Library
+
+Fix :meth:`pathlib.Path.rglob` for empty pattern.
+
+..
+
+.. date: 2022-05-09-09-28-02
+.. gh-issue: 92530
+.. nonce: M4Q1RS
+.. section: Library
+
+Fix an issue that occurred after interrupting
+:func:`threading.Condition.notify`.
+
+..
+
+.. date: 2022-05-09-01-27-25
+.. gh-issue: 92531
+.. nonce: vV7S_O
+.. section: Library
+
+The statistics.median_grouped() function now always return a float.
+Formerly, it did not convert the input type when for sequences of length
+one.
+
+..
+
+.. date: 2022-04-25-10-23-01
+.. gh-issue: 91810
+.. nonce: DOHa6B
+.. section: Library
+
+:class:`~xml.etree.ElementTree.ElementTree` method
+:meth:`~xml.etree.ElementTree.ElementTree.write` and function
+:func:`~xml.etree.ElementTree.tostring` now use the text file's encoding
+("UTF-8" if not available) instead of locale encoding in XML declaration
+when ``encoding="unicode"`` is specified.
+
+..
+
+.. date: 2022-04-15-22-07-36
+.. gh-issue: 90622
+.. nonce: 0C6l8h
+.. section: Library
+
+Worker processes for :class:`concurrent.futures.ProcessPoolExecutor` are no
+longer spawned on demand (a feature added in 3.9) when the multiprocessing
+context start method is ``"fork"`` as that can lead to deadlocks in the
+child processes due to a fork happening while threads are running.
+
+..
+
+.. date: 2022-04-15-13-16-25
+.. gh-issue: 91581
+.. nonce: 9OGsrN
+.. section: Library
+
+Remove an unhandled error case in the C implementation of calls to
+:meth:`datetime.fromtimestamp <datetime.datetime.fromtimestamp>` with no
+time zone (i.e. getting a local time from an epoch timestamp). This should
+have no user-facing effect other than giving a possibly more accurate error
+message when called with timestamps that fall on 10000-01-01 in the local
+time. Patch by Paul Ganssle.
+
+..
+
+.. bpo: 39064
+.. date: 2022-04-03-19-40-09
+.. nonce: 76PbIz
+.. section: Library
+
+:class:`zipfile.ZipFile` now raises :exc:`zipfile.BadZipFile` instead of
+``ValueError`` when reading a corrupt zip file in which the central
+directory offset is negative.
+
+..
+
+.. bpo: 45393
+.. date: 2022-02-09-23-44-27
+.. nonce: 9v5Y8U
+.. section: Library
+
+Fix the formatting for ``await x`` and ``not x`` in the operator precedence
+table when using the :func:`help` system.
+
+..
+
+.. bpo: 28249
+.. date: 2022-01-09-14-23-00
+.. nonce: 4dzB80
+.. section: Library
+
+Set :attr:`doctest.DocTest.lineno` to ``None`` when object does not have
+:attr:`__doc__`.
+
+..
+
+.. bpo: 45046
+.. date: 2021-08-29-19-59-16
+.. nonce: eGq0NC
+.. section: Library
+
+Add support of context managers in :mod:`unittest`: methods
+:meth:`~unittest.TestCase.enterContext` and
+:meth:`~unittest.TestCase.enterClassContext` of class
+:class:`~unittest.TestCase`, method
+:meth:`~unittest.IsolatedAsyncioTestCase.enterAsyncContext` of class
+:class:`~unittest.IsolatedAsyncioTestCase` and function
+:func:`unittest.enterModuleContext`.
+
+..
+
+.. bpo: 42627
+.. date: 2021-05-22-07-58-59
+.. nonce: EejtD0
+.. section: Library
+
+Fix incorrect parsing of Windows registry proxy settings
+
+..
+
+.. date: 2022-05-26-11-33-23
+.. gh-issue: 86438
+.. nonce: kEGGmK
+.. section: Documentation
+
+Clarify that :option:`-W` and :envvar:`PYTHONWARNINGS` are matched literally
+and case-insensitively, rather than as regular expressions, in
+:mod:`warnings`.
+
+..
+
+.. date: 2022-05-18-23-58-26
+.. gh-issue: 92240
+.. nonce: bHvYiz
+.. section: Documentation
+
+Added release dates for "What's New in Python 3.X" for 3.0, 3.1, 3.2, 3.8
+and 3.10
+
+..
+
+.. bpo: 40838
+.. date: 2022-01-13-16-03-15
+.. nonce: k3NVCf
+.. section: Documentation
+
+Document that :func:`inspect.getdoc`, :func:`inspect.getmodule`, and
+:func:`inspect.getsourcefile` might return ``None``.
+
+..
+
+.. bpo: 38056
+.. date: 2019-09-12-08-28-17
+.. nonce: 6ktYkc
+.. section: Documentation
+
+Overhaul the :ref:`error-handlers` documentation in :mod:`codecs`.
+
+..
+
+.. bpo: 13553
+.. date: 2017-12-10-19-13-39
+.. nonce: gQbZs4
+.. section: Documentation
+
+Document tkinter.Tk args.
+
+..
+
+.. date: 2022-05-12-05-51-06
+.. gh-issue: 92670
+.. nonce: 7L43Z_
+.. section: Tests
+
+Skip ``test_shutil.TestCopy.test_copyfile_nonexistent_dir`` test on AIX as
+the test uses a trailing slash to force the OS consider the path as a
+directory, but on AIX the trailing slash has no effect and is considered as
+a file.
+
+..
+
+.. date: 2022-05-12-10-19-15
+.. gh-issue: 90473
+.. nonce: -syvqK
+.. section: Build
+
+Disable pymalloc and increase stack size on ``wasm32-wasi``.
+
+..
+
+.. bpo: 34449
+.. date: 2018-08-21-11-10-18
+.. nonce: Z3qm3c
+.. section: Build
+
+Drop invalid compiler switch ``-fPIC`` for HP aCC on HP-UX. Patch by Michael
+Osipov.
+
+..
+
+.. date: 2022-05-19-21-44-25
+.. gh-issue: 92817
+.. nonce: Jrf-Kv
+.. section: Windows
+
+Ensures that :file:`py.exe` will prefer an active virtual environment over
+default tags specified with environment variables or through a
+:file:`py.ini` file.
+
+..
+
+.. date: 2022-05-19-14-01-30
+.. gh-issue: 92984
+.. nonce: Dsxnlr
+.. section: Windows
+
+Explicitly disable incremental linking for non-Debug builds
+
+..
+
+.. date: 2022-05-16-11-45-06
+.. gh-issue: 92841
+.. nonce: NQx107
+.. section: Windows
+
+:mod:`asyncio` no longer throws ``RuntimeError: Event loop is closed`` on
+interpreter exit after asynchronous socket activity. Patch by Oleg Iarygin.
+
+..
+
+.. bpo: 46907
+.. date: 2022-05-05-06-27-59
+.. nonce: IW-uvT
+.. section: Windows
+
+Update Windows installer to use SQLite 3.38.4.
+
+..
+
+.. date: 2022-05-23-15-22-18
+.. gh-issue: 92898
+.. nonce: Qjc9d3
+.. section: C API
+
+Fix C++ compiler warnings when casting function arguments to ``PyObject*``.
+Patch by Serge Guelton.
+
+..
+
+.. date: 2022-05-19-18-05-51
+.. gh-issue: 92913
+.. nonce: Ass1Hv
+.. section: C API
+
+Ensures changes to :c:member:`PyConfig.module_search_paths` are ignored
+unless :c:member:`PyConfig.module_search_paths_set` is set
+
+..
+
+.. date: 2022-05-13-18-17-48
+.. gh-issue: 92781
+.. nonce: TVDr3-
+.. section: C API
+
+Avoid mixing declarations and code in the C API to fix the compiler warning:
+"ISO C90 forbids mixed declarations and code"
+[-Werror=declaration-after-statement]. Patch by Victor Stinner.
--- /dev/null
+.. date: 2022-05-30-19-00-38
+.. gh-issue: 93359
+.. nonce: zXV3A0
+.. release date: 2022-06-01
+.. section: Core and Builtins
+
+Ensure that custom :mod:`ast` nodes without explicit end positions can be
+compiled. Patch by Pablo Galindo.
+
+..
+
+.. date: 2022-05-30-10-22-46
+.. gh-issue: 93345
+.. nonce: gi1A4L
+.. section: Core and Builtins
+
+Fix a crash in substitution of a ``TypeVar`` in nested generic alias after
+``TypeVarTuple``.
+
+..
+
+.. date: 2022-05-31-18-04-58
+.. gh-issue: 69093
+.. nonce: 6lSa0C
+.. section: Build
+
+Fix ``Modules/Setup.stdlib.in`` rule for ``_sqlite3`` extension.
--- /dev/null
+.. date: 2022-06-15-20-09-23
+.. gh-issue: 87389
+.. nonce: QVaC3f
+.. release date: 2022-07-11
+.. section: Security
+
+:mod:`http.server`: Fix an open redirection vulnerability in the HTTP server
+when an URI path starts with ``//``. Vulnerability discovered, and initial
+fix proposed, by Hamza Avvan.
+
+..
+
+.. date: 2022-06-03-12-52-53
+.. gh-issue: 79096
+.. nonce: YVoxgC
+.. section: Security
+
+LWPCookieJar and MozillaCookieJar create files with file mode 600 instead of
+644 (Microsoft Windows is not affected)
+
+..
+
+.. date: 2022-05-19-08-53-07
+.. gh-issue: 92888
+.. nonce: TLtR9W
+.. section: Security
+
+Fix ``memoryview`` use after free when accessing the backing buffer in
+certain cases.
+
+..
+
+.. date: 2022-04-27-18-25-30
+.. gh-issue: 68966
+.. nonce: gjS8zs
+.. section: Security
+
+The deprecated mailcap module now refuses to inject unsafe text (filenames,
+MIME types, parameters) into shell commands. Instead of using such text, it
+will warn and act as if a match was not found (or for test commands, as if
+the test failed).
+
+..
+
+.. date: 2022-07-08-16-44-11
+.. gh-issue: 94694
+.. nonce: VkL2CM
+.. section: Core and Builtins
+
+Fix an issue that could cause code with multi-line method lookups to have
+misleading or incorrect column offset information. In some cases (when
+compiling a hand-built AST) this could have resulted in a hard crash of the
+interpreter.
+
+..
+
+.. date: 2022-07-08-11-44-45
+.. gh-issue: 93252
+.. nonce: i2358c
+.. section: Core and Builtins
+
+Fix an issue that caused internal frames to outlive failed Python function
+calls, possibly resulting in memory leaks or hard interpreter crashes.
+
+..
+
+.. date: 2022-07-07-21-13-25
+.. gh-issue: 94215
+.. nonce: _Sv9Ms
+.. section: Core and Builtins
+
+Fix an issue where exceptions raised by line-tracing events would cause
+frames to be left in an invalid state, possibly resulting in a hard crash of
+the interpreter.
+
+..
+
+.. date: 2022-07-06-14-02-26
+.. gh-issue: 92228
+.. nonce: 44Cbly
+.. section: Core and Builtins
+
+Disable the compiler's inline-small-exit-blocks optimization for exit blocks
+that are associated with source code lines. This fixes a bug where the
+debugger cannot tell where an exception handler ends and the following code
+block begins.
+
+..
+
+.. date: 2022-07-01-20-00-19
+.. gh-issue: 94485
+.. nonce: mo5st7
+.. section: Core and Builtins
+
+Line number of a module's ``RESUME`` instruction is set to 0 as specified in
+:pep:`626`.
+
+..
+
+.. date: 2022-06-30-15-07-26
+.. gh-issue: 94438
+.. nonce: btzHSk
+.. section: Core and Builtins
+
+Account for instructions that can push NULL to the stack when setting line
+number in a frame. Prevents some (unlikely) crashes.
+
+..
+
+.. date: 2022-06-29-22-18-36
+.. gh-issue: 91719
+.. nonce: 3APYYI
+.. section: Core and Builtins
+
+Reload ``opcode`` when raising ``unknown opcode error`` in the interpreter
+main loop, for C compilers to generate dispatching code independently.
+
+..
+
+.. date: 2022-06-29-15-45-04
+.. gh-issue: 94329
+.. nonce: olUQyk
+.. section: Core and Builtins
+
+Compile and run code with unpacking of extremely large sequences (1000s of
+elements). Such code failed to compile. It now compiles and runs correctly.
+
+..
+
+.. date: 2022-06-28-14-20-36
+.. gh-issue: 94360
+.. nonce: DiEnen
+.. section: Core and Builtins
+
+Fixed a tokenizer crash when reading encoded files with syntax errors from
+``stdin`` with non utf-8 encoded text. Patch by Pablo Galindo
+
+..
+
+.. date: 2022-06-28-12-41-17
+.. gh-issue: 88116
+.. nonce: A7fEl_
+.. section: Core and Builtins
+
+Fix an issue when reading line numbers from code objects if the encoded line
+numbers are close to ``INT_MIN``. Patch by Pablo Galindo
+
+..
+
+.. date: 2022-06-28-10-08-06
+.. gh-issue: 94262
+.. nonce: m-HWUZ
+.. section: Core and Builtins
+
+Don't create frame objects for incomplete frames. Prevents the creation of
+generators and closures from being observable to Python and C extensions,
+restoring the behavior of 3.10 and earlier.
+
+..
+
+.. date: 2022-06-26-14-37-03
+.. gh-issue: 94192
+.. nonce: ab7tn7
+.. section: Core and Builtins
+
+Fix error for dictionary literals with invalid expression as value.
+
+..
+
+.. date: 2022-06-24-14-06-20
+.. gh-issue: 93883
+.. nonce: 8jVQQ4
+.. section: Core and Builtins
+
+Revise the display strategy of traceback enhanced error locations. The
+indicators are only shown when the location doesn't span the whole line.
+
+..
+
+.. date: 2022-06-20-13-48-57
+.. gh-issue: 94021
+.. nonce: o78q3G
+.. section: Core and Builtins
+
+Fix unreachable code warning in ``Python/specialize.c``.
+
+..
+
+.. date: 2022-06-13-13-55-34
+.. gh-issue: 93516
+.. nonce: HILrDl
+.. section: Core and Builtins
+
+Store offset of first traceable instruction in code object to avoid having
+to recompute it for each instruction when tracing.
+
+..
+
+.. date: 2022-06-13-10-48-09
+.. gh-issue: 93516
+.. nonce: yJSait
+.. section: Core and Builtins
+
+Lazily create a table mapping bytecode offsets to line numbers to speed up
+calculation of line numbers when tracing.
+
+..
+
+.. date: 2022-06-12-19-31-56
+.. gh-issue: 89828
+.. nonce: bq02M7
+.. section: Core and Builtins
+
+:class:`types.GenericAlias` no longer relays the ``__class__`` attribute.
+For example, ``isinstance(list[int], type)`` no longer returns ``True``.
+
+..
+
+.. date: 2022-06-10-12-03-17
+.. gh-issue: 93671
+.. nonce: idkQqG
+.. section: Core and Builtins
+
+Fix some exponential backtrace case happening with deeply nested sequence
+patterns in match statements. Patch by Pablo Galindo
+
+..
+
+.. date: 2022-06-10-10-31-18
+.. gh-issue: 93662
+.. nonce: -7RSC1
+.. section: Core and Builtins
+
+Make sure that the end column offsets are correct in multi-line method
+calls. Previously, the end column could precede the column offset.
+
+..
+
+.. date: 2022-06-09-19-19-02
+.. gh-issue: 93461
+.. nonce: 5DqP1e
+.. section: Core and Builtins
+
+:func:`importlib.invalidate_caches` now drops entries from
+:data:`sys.path_importer_cache` with a relative path as name. This solves a
+caching issue when a process changes its current working directory.
+
+``FileFinder`` no longer inserts a dot in the path, e.g. ``/egg/./spam`` is
+now ``/egg/spam``.
+
+..
+
+.. date: 2022-06-01-17-47-40
+.. gh-issue: 93418
+.. nonce: 24dJuc
+.. section: Core and Builtins
+
+Fixed an assert where an f-string has an equal sign '=' following an
+expression, but there's no trailing brace. For example, f"{i=".
+
+..
+
+.. date: 2022-05-31-16-36-30
+.. gh-issue: 93382
+.. nonce: Jf6gAj
+.. section: Core and Builtins
+
+Cache the result of :c:func:`PyCode_GetCode` function to restore the O(1)
+lookup of the :attr:`~types.CodeType.co_code` attribute.
+
+..
+
+.. date: 2022-05-30-15-35-42
+.. gh-issue: 93354
+.. nonce: RZk8gs
+.. section: Core and Builtins
+
+Use exponential backoff for specialization counters in the interpreter. Can
+reduce the number of failed specializations significantly and avoid slowdown
+for those parts of a program that are not suitable for specialization.
+
+..
+
+.. date: 2022-05-20-09-25-34
+.. gh-issue: 93021
+.. nonce: k3Aji2
+.. section: Core and Builtins
+
+Fix the :attr:`__text_signature__` for :meth:`__get__` methods implemented
+in C. Patch by Jelle Zijlstra.
+
+..
+
+.. date: 2022-05-18-18-34-45
+.. gh-issue: 92930
+.. nonce: kpYPOb
+.. section: Core and Builtins
+
+Fixed a crash in ``_pickle.c`` from mutating collections during
+``__reduce__`` or ``persistent_id``.
+
+..
+
+.. date: 2022-05-18-08-32-33
+.. gh-issue: 92914
+.. nonce: tJUeTD
+.. section: Core and Builtins
+
+Always round the allocated size for lists up to the nearest even number.
+
+..
+
+.. date: 2022-05-17-20-41-43
+.. gh-issue: 92858
+.. nonce: eIXJTn
+.. section: Core and Builtins
+
+Improve error message for some suites with syntax error before ':'
+
+..
+
+.. bpo: 46142
+.. date: 2022-01-02-14-53-59
+.. nonce: WayjgT
+.. section: Core and Builtins
+
+Make ``--help`` output shorter by moving some info to the new ``--help-env``
+and ``--help-xoptions`` command-line options. Also add ``--help-all`` option
+to print complete usage.
+
+..
+
+.. date: 2022-07-11-10-41-48
+.. gh-issue: 94736
+.. nonce: EbsgeK
+.. section: Library
+
+Fix crash when deallocating an instance of a subclass of
+``_multiprocessing.SemLock``. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-07-07-15-46-55
+.. gh-issue: 94637
+.. nonce: IYEiUM
+.. section: Library
+
+:meth:`SSLContext.set_default_verify_paths` now releases the GIL around
+``SSL_CTX_set_default_verify_paths`` call. The function call performs I/O
+and CPU intensive work.
+
+..
+
+.. date: 2022-07-06-16-01-08
+.. gh-issue: 94607
+.. nonce: Q6RYfz
+.. section: Library
+
+Fix subclassing complex generics with type variables in :mod:`typing`.
+Previously an error message saying ``Some type variables ... are not listed
+in Generic[...]`` was shown. :mod:`typing` no longer populates
+``__parameters__`` with the ``__parameters__`` of a Python class.
+
+..
+
+.. date: 2022-07-06-14-45-12
+.. gh-issue: 93910
+.. nonce: iZcp67
+.. section: Library
+
+The ability to access the other values of an enum on an enum (e.g.
+``Color.RED.BLUE``) has been restored in order to fix a performance
+regression.
+
+..
+
+.. date: 2022-07-06-06-02-02
+.. gh-issue: 93896
+.. nonce: vIgWGr
+.. section: Library
+
+Fix :func:`asyncio.run` and :class:`unittest.IsolatedAsyncioTestCase` to
+always the set event loop as it was done in Python 3.10 and earlier. Patch
+by Kumar Aditya.
+
+..
+
+.. date: 2022-07-02-19-46-30
+.. gh-issue: 94510
+.. nonce: xOatDC
+.. section: Library
+
+Re-entrant calls to :func:`sys.setprofile` and :func:`sys.settrace` now
+raise :exc:`RuntimeError`. Patch by Pablo Galindo.
+
+..
+
+.. date: 2022-06-29-09-48-37
+.. gh-issue: 92336
+.. nonce: otA6c6
+.. section: Library
+
+Fix bug where :meth:`linecache.getline` fails on bad files with
+:exc:`UnicodeDecodeError` or :exc:`SyntaxError`. It now returns an empty
+string as per the documentation.
+
+..
+
+.. date: 2022-06-29-04-42-56
+.. gh-issue: 94398
+.. nonce: YOq_bJ
+.. section: Library
+
+Once a :class:`asyncio.TaskGroup` has started shutting down (i.e., at least
+one task has failed and the task group has started cancelling the remaining
+tasks), it should not be possible to add new tasks to the task group.
+
+..
+
+.. date: 2022-06-25-16-27-02
+.. gh-issue: 94254
+.. nonce: beP16v
+.. section: Library
+
+Fixed types of :mod:`struct` module to be immutable. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-06-24-19-23-59
+.. gh-issue: 94207
+.. nonce: VhS1eS
+.. section: Library
+
+Made :class:`_struct.Struct` GC-tracked in order to fix a reference leak in
+the :mod:`_struct` module.
+
+..
+
+.. date: 2022-06-23-13-12-05
+.. gh-issue: 91742
+.. nonce: sNytVX
+.. section: Library
+
+Fix :mod:`pdb` crash after jump caused by a null pointer dereference. Patch
+by Kumar Aditya.
+
+..
+
+.. date: 2022-06-22-11-16-11
+.. gh-issue: 94101
+.. nonce: V9vDG8
+.. section: Library
+
+Manual instantiation of :class:`ssl.SSLSession` objects is no longer allowed
+as it lead to misconfigured instances that crashed the interpreter when
+attributes where accessed on them.
+
+..
+
+.. date: 2022-06-21-11-40-31
+.. gh-issue: 84753
+.. nonce: FW1pxO
+.. section: Library
+
+:func:`inspect.iscoroutinefunction`, :func:`inspect.isgeneratorfunction`,
+and :func:`inspect.isasyncgenfunction` now properly return ``True`` for
+duck-typed function-like objects like instances of
+:class:`unittest.mock.AsyncMock`.
+
+This makes :func:`inspect.iscoroutinefunction` consistent with the behavior
+of :func:`asyncio.iscoroutinefunction`. Patch by Mehdi ABAAKOUK.
+
+..
+
+.. date: 2022-06-20-23-14-43
+.. gh-issue: 94028
+.. nonce: UofEcX
+.. section: Library
+
+Fix a regression in the :mod:`sqlite3` where statement objects were not
+properly cleared and reset after use in cursor iters. The regression was
+introduced by PR 27884 in Python 3.11a1. Patch by Erlend E. Aasland.
+
+..
+
+.. date: 2022-06-16-11-16-53
+.. gh-issue: 93820
+.. nonce: 00X0Y5
+.. section: Library
+
+Pickle :class:`enum.Flag` by name.
+
+..
+
+.. date: 2022-06-16-09-24-50
+.. gh-issue: 93847
+.. nonce: kuv8bN
+.. section: Library
+
+Fix repr of enum of generic aliases.
+
+..
+
+.. date: 2022-06-15-21-35-11
+.. gh-issue: 91404
+.. nonce: 39TZzW
+.. section: Library
+
+Revert the :mod:`re` memory leak when a match is terminated by a signal or
+memory allocation failure as the implemented fix caused a major performance
+regression.
+
+..
+
+.. date: 2022-06-15-21-28-16
+.. gh-issue: 83499
+.. nonce: u3DQJ-
+.. section: Library
+
+Fix double closing of file description in :mod:`tempfile`.
+
+..
+
+.. date: 2022-06-15-21-20-02
+.. gh-issue: 93820
+.. nonce: FAMLY8
+.. section: Library
+
+Fixed a regression when :func:`copy.copy`-ing :class:`enum.Flag` with
+multiple flag members.
+
+..
+
+.. date: 2022-06-11-13-32-17
+.. gh-issue: 79512
+.. nonce: A1KTDr
+.. section: Library
+
+Fixed names and ``__module__`` value of :mod:`weakref` classes
+:class:`~weakref.ReferenceType`, :class:`~weakref.ProxyType`,
+:class:`~weakref.CallableProxyType`. It makes them pickleable.
+
+..
+
+.. date: 2022-06-09-17-15-26
+.. gh-issue: 91389
+.. nonce: OE4vS5
+.. section: Library
+
+Fix an issue where :mod:`dis` utilities could report missing or incorrect
+position information in the presence of ``CACHE`` entries.
+
+..
+
+.. date: 2022-06-09-14-44-21
+.. gh-issue: 93626
+.. nonce: sfghs46
+.. section: Library
+
+Set ``__future__.annotations`` to have a ``None`` mandatoryRelease to
+indicate that it is currently 'TBD'.
+
+..
+
+.. date: 2022-06-09-10-12-55
+.. gh-issue: 90473
+.. nonce: 683m_C
+.. section: Library
+
+Emscripten and WASI have no home directory and cannot provide :pep:`370`
+user site directory.
+
+..
+
+.. date: 2022-06-08-20-11-02
+.. gh-issue: 90494
+.. nonce: LIZT85
+.. section: Library
+
+:func:`copy.copy` and :func:`copy.deepcopy` now always raise a TypeError if
+``__reduce__()`` returns a tuple with length 6 instead of silently ignore
+the 6th item or produce incorrect result.
+
+..
+
+.. date: 2022-06-07-14-53-46
+.. gh-issue: 90549
+.. nonce: T4FMKY
+.. section: Library
+
+Fix a multiprocessing bug where a global named resource (such as a
+semaphore) could leak when a child process is spawned (as opposed to
+forked).
+
+..
+
+.. date: 2022-06-06-13-19-43
+.. gh-issue: 93521
+.. nonce: _vE8m9
+.. section: Library
+
+Fixed a case where dataclasses would try to add ``__weakref__`` into the
+``__slots__`` for a dataclass that specified ``weakref_slot=True`` when it
+was already defined in one of its bases. This resulted in a ``TypeError``
+upon the new class being created.
+
+..
+
+.. date: 2022-06-06-12-58-27
+.. gh-issue: 79579
+.. nonce: e8rB-M
+.. section: Library
+
+:mod:`sqlite3` now correctly detects DML queries with leading comments.
+Patch by Erlend E. Aasland.
+
+..
+
+.. date: 2022-06-05-22-22-42
+.. gh-issue: 93421
+.. nonce: 43UO_8
+.. section: Library
+
+Update :data:`sqlite3.Cursor.rowcount` when a DML statement has run to
+completion. This fixes the row count for SQL queries like ``UPDATE ...
+RETURNING``. Patch by Erlend E. Aasland.
+
+..
+
+.. date: 2022-06-01-11-24-13
+.. gh-issue: 91162
+.. nonce: NxvU_u
+.. section: Library
+
+Support splitting of unpacked arbitrary-length tuple over ``TypeVar`` and
+``TypeVarTuple`` parameters. For example:
+
+* ``A[T, *Ts][*tuple[int, ...]]`` -> ``A[int, *tuple[int, ...]]``
+* ``A[*Ts, T][*tuple[int, ...]]`` -> ``A[*tuple[int, ...], int]``
+
+..
+
+.. date: 2022-05-31-14-58-40
+.. gh-issue: 93353
+.. nonce: 9Hvm6o
+.. section: Library
+
+Fix the :func:`importlib.resources.as_file` context manager to remove the
+temporary file if destroyed late during Python finalization: keep a local
+reference to the :func:`os.remove` function. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-05-30-21-42-50
+.. gh-issue: 83658
+.. nonce: 01Ntx0
+.. section: Library
+
+Make :class:`multiprocessing.Pool` raise an exception if
+``maxtasksperchild`` is not ``None`` or a positive int.
+
+..
+
+.. date: 2022-05-26-23-10-55
+.. gh-issue: 93156
+.. nonce: 4XfDVN
+.. section: Library
+
+Accessing the :attr:`pathlib.PurePath.parents` sequence of an absolute path
+using negative index values produced incorrect results.
+
+..
+
+.. date: 2022-05-24-11-19-04
+.. gh-issue: 74696
+.. nonce: -cnf-A
+.. section: Library
+
+:func:`shutil.make_archive` no longer temporarily changes the current
+working directory during creation of standard ``.zip`` or tar archives.
+
+..
+
+.. date: 2022-05-22-16-08-01
+.. gh-issue: 89973
+.. nonce: jc-Q4g
+.. section: Library
+
+Fix :exc:`re.error` raised in :mod:`fnmatch` if the pattern contains a
+character range with upper bound lower than lower bound (e.g. ``[c-a]``).
+Now such ranges are interpreted as empty ranges.
+
+..
+
+.. date: 2022-05-19-17-49-58
+.. gh-issue: 92932
+.. nonce: o2peTh
+.. section: Library
+
+Now :func:`~dis.dis` and :func:`~dis.get_instructions` handle operand values
+for instructions prefixed by ``EXTENDED_ARG_QUICK``. Patch by Sam Gross and
+Dong-hee Na.
+
+..
+
+.. date: 2022-04-15-17-38-55
+.. gh-issue: 91577
+.. nonce: Ah7cLL
+.. section: Library
+
+Move imports in :class:`~multiprocessing.SharedMemory` methods to module
+level so that they can be executed late in python finalization.
+
+..
+
+.. date: 2022-04-11-16-55-41
+.. gh-issue: 91456
+.. nonce: DK3KKl
+.. section: Library
+
+Deprecate current default auto() behavior: In 3.13 the default will be for
+for auto() to always return the largest member value incremented by 1, and
+to raise if incompatible value types are used.
+
+..
+
+.. bpo: 47231
+.. date: 2022-04-08-22-12-11
+.. nonce: lvyglt
+.. section: Library
+
+Fixed an issue with inconsistent trailing slashes in tarfile longname
+directories.
+
+..
+
+.. bpo: 46755
+.. date: 2022-02-15-12-40-48
+.. nonce: zePJfx
+.. section: Library
+
+In :class:`QueueHandler`, clear ``stack_info`` from :class:`LogRecord` to
+prevent stack trace from being written twice.
+
+..
+
+.. bpo: 46197
+.. date: 2022-01-03-15-07-06
+.. nonce: Z0djv6
+.. section: Library
+
+Fix :mod:`ensurepip` environment isolation for subprocess running ``pip``.
+
+..
+
+.. bpo: 45924
+.. date: 2021-12-27-15-32-15
+.. nonce: 0ZpHX2
+.. section: Library
+
+Fix :mod:`asyncio` incorrect traceback when future's exception is raised
+multiple times. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 34828
+.. date: 2018-09-28-22-18-03
+.. nonce: 5Zyi_S
+.. section: Library
+
+:meth:`sqlite3.Connection.iterdump` now handles databases that use
+``AUTOINCREMENT`` in one or more tables.
+
+..
+
+.. date: 2022-07-07-08-42-05
+.. gh-issue: 94321
+.. nonce: pmCIPb
+.. section: Documentation
+
+Document the :pep:`246` style protocol type
+:class:`sqlite3.PrepareProtocol`.
+
+..
+
+.. date: 2022-06-16-10-10-59
+.. gh-issue: 61162
+.. nonce: 1ypkG8
+.. section: Documentation
+
+Clarify :mod:`sqlite3` behavior when
+:ref:`sqlite3-connection-context-manager`.
+
+..
+
+.. date: 2022-06-15-12-12-49
+.. gh-issue: 87260
+.. nonce: epyI7D
+.. section: Documentation
+
+Align :mod:`sqlite3` argument specs with the actual implementation.
+
+..
+
+.. date: 2022-05-29-21-22-54
+.. gh-issue: 86986
+.. nonce: lFXw8j
+.. section: Documentation
+
+The minimum Sphinx version required to build the documentation is now 3.2.
+
+..
+
+.. date: 2022-05-26-14-51-25
+.. gh-issue: 88831
+.. nonce: 5Cccr5
+.. section: Documentation
+
+Augmented documentation of asyncio.create_task(). Clarified the need to keep
+strong references to tasks and added a code snippet detailing how to to
+this.
+
+..
+
+.. bpo: 47161
+.. date: 2022-03-30-17-56-01
+.. nonce: gesHfS
+.. section: Documentation
+
+Document that :class:`pathlib.PurePath` does not collapse initial double
+slashes because they denote UNC paths.
+
+..
+
+.. date: 2022-07-05-17-53-13
+.. gh-issue: 91330
+.. nonce: Qys5IL
+.. section: Tests
+
+Added more tests for :mod:`dataclasses` to cover behavior with data
+descriptor-based fields.
+
+..
+
+.. date: 2022-06-27-21-27-20
+.. gh-issue: 94208
+.. nonce: VR6HX-
+.. section: Tests
+
+``test_ssl`` is now checking for supported TLS version and protocols in more
+tests.
+
+..
+
+.. date: 2022-06-27-08-53-40
+.. gh-issue: 94315
+.. nonce: MoZT9t
+.. section: Tests
+
+Tests now check for DAC override capability instead of relying on
+:func:`os.geteuid`.
+
+..
+
+.. date: 2022-06-17-15-20-09
+.. gh-issue: 93951
+.. nonce: CW1Vv4
+.. section: Tests
+
+In test_bdb.StateTestCase.test_skip, avoid including auxiliary importers.
+
+..
+
+.. date: 2022-06-17-13-55-11
+.. gh-issue: 93957
+.. nonce: X4ovYV
+.. section: Tests
+
+Provide nicer error reporting from subprocesses in
+test_venv.EnsurePipTest.test_with_pip.
+
+..
+
+.. date: 2022-06-10-21-18-14
+.. gh-issue: 84461
+.. nonce: 9TAb26
+.. section: Tests
+
+``run_tests.py`` now handles cross compiling env vars correctly and pass
+``HOSTRUNNER`` to regression tests.
+
+..
+
+.. date: 2022-06-08-22-32-56
+.. gh-issue: 93616
+.. nonce: e5Kkx2
+.. section: Tests
+
+``test_modulefinder`` now creates a temporary directory in
+``ModuleFinderTest.setUp()`` instead of module scope.
+
+..
+
+.. date: 2022-06-08-14-17-59
+.. gh-issue: 93575
+.. nonce: Xb2LNB
+.. section: Tests
+
+Fix issue with test_unicode test_raiseMemError. The test case now use
+``test.support.calcobjsize`` to calculate size of PyUnicode structs.
+:func:`sys.getsizeof` may return different size when string has UTF-8
+memory.
+
+..
+
+.. date: 2022-06-05-10-16-45
+.. gh-issue: 90473
+.. nonce: QMu7A8
+.. section: Tests
+
+WASI does not have a ``chmod(2)`` syscall. :func:`os.chmod` is now a dummy
+function on WASI. Skip all tests that depend on working :func:`os.chmod`.
+
+..
+
+.. date: 2022-06-04-12-05-31
+.. gh-issue: 90473
+.. nonce: RSpjF7
+.. section: Tests
+
+Skip tests on WASI that require symlinks with absolute paths.
+
+..
+
+.. date: 2022-06-03-16-26-04
+.. gh-issue: 57539
+.. nonce: HxWgYO
+.. section: Tests
+
+Increase calendar test coverage for
+:meth:`calendar.LocaleTextCalendar.formatweekday`.
+
+..
+
+.. date: 2022-06-03-14-18-37
+.. gh-issue: 90473
+.. nonce: 7iXVRK
+.. section: Tests
+
+Skip symlink tests on WASI. wasmtime uses ``openat2(2)`` with
+``RESOLVE_BENEATH`` flag, which prevents symlinks with absolute paths.
+
+..
+
+.. date: 2022-06-03-12-22-44
+.. gh-issue: 89858
+.. nonce: ftBvjE
+.. section: Tests
+
+Fix ``test_embed`` for out-of-tree builds. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-05-25-23-07-15
+.. gh-issue: 92886
+.. nonce: Aki63_
+.. section: Tests
+
+Fixing tests that fail when running with optimizations (``-O``) in
+``test_imaplib.py``.
+
+..
+
+.. date: 2022-05-25-23-00-35
+.. gh-issue: 92886
+.. nonce: Y-vrWj
+.. section: Tests
+
+Fixing tests that fail when running with optimizations (``-O``) in
+``test_zipimport.py``
+
+..
+
+.. bpo: 47016
+.. date: 2022-03-14-23-28-17
+.. nonce: K-t2QX
+.. section: Tests
+
+Create a GitHub Actions workflow for verifying bundled pip and setuptools.
+Patch by Illia Volochii and Adam Turner.
+
+..
+
+.. date: 2022-06-29-08-58-31
+.. gh-issue: 94404
+.. nonce: 3MadM6
+.. section: Build
+
+``makesetup`` now works around an issue with sed on macOS and uses correct
+CFLAGS for object files that end up in a shared extension. Module CFLAGS are
+used before PY_STDMODULE_CFLAGS to avoid clashes with system headers.
+
+..
+
+.. date: 2022-06-08-14-28-03
+.. gh-issue: 93584
+.. nonce: 0xfHOK
+.. section: Build
+
+Address race condition in ``Makefile`` when installing a PGO build. All
+``test`` and ``install`` targets now depend on ``all`` target.
+
+..
+
+.. date: 2022-06-04-12-53-53
+.. gh-issue: 93491
+.. nonce: ehM211
+.. section: Build
+
+``configure`` now detects and reports :pep:`11` support tiers.
+
+..
+
+.. date: 2022-06-15-01-03-52
+.. gh-issue: 93824
+.. nonce: mR4mxu
+.. section: Windows
+
+Drag and drop of files onto Python files in Windows Explorer has been
+enabled for Windows ARM64.
+
+..
+
+.. bpo: 42658
+.. date: 2022-03-20-15-47-35
+.. nonce: 16eXtb
+.. section: Windows
+
+Support native Windows case-insensitive path comparisons by using
+``LCMapStringEx`` instead of :func:`str.lower` in :func:`ntpath.normcase`.
+Add ``LCMapStringEx`` to the :mod:`_winapi` module.
+
+..
+
+.. date: 2022-07-04-01-37-42
+.. gh-issue: 94538
+.. nonce: 1rgy1Y
+.. section: Tools/Demos
+
+Fix Argument Clinic output to custom file destinations. Patch by Erlend E.
+Aasland.
+
+..
+
+.. date: 2022-06-29-22-47-11
+.. gh-issue: 94430
+.. nonce: hdov8L
+.. section: Tools/Demos
+
+Allow parameters named ``module`` and ``self`` with custom C names in
+Argument Clinic. Patch by Erlend E. Aasland
+
+..
+
+.. date: 2022-06-17-13-41-38
+.. gh-issue: 93937
+.. nonce: uKVTEh
+.. section: C API
+
+The following frame functions and type are now directly available with
+``#include <Python.h>``, it's no longer needed to add ``#include
+<frameobject.h>``:
+
+* :c:func:`PyFrame_Check`
+* :c:func:`PyFrame_GetBack`
+* :c:func:`PyFrame_GetBuiltins`
+* :c:func:`PyFrame_GetGenerator`
+* :c:func:`PyFrame_GetGlobals`
+* :c:func:`PyFrame_GetLasti`
+* :c:func:`PyFrame_GetLocals`
+* :c:type:`PyFrame_Type`
+
+Patch by Victor Stinner.
+
+..
+
+.. date: 2022-06-13-21-37-31
+.. gh-issue: 91321
+.. nonce: DgJFvS
+.. section: C API
+
+Fix the compatibility of the Python C API with C++ older than C++11. Patch
+by Victor Stinner.
+
+..
+
+.. date: 2022-06-10-23-41-48
+.. gh-issue: 91731
+.. nonce: fhYUQG
+.. section: C API
+
+Avoid defining the ``static_assert`` when compiling with C++ 11, where this
+is a keyword and redefining it can lead to undefined behavior. Patch by
+Pablo Galindo
+
+..
+
+.. date: 2022-06-04-13-15-41
+.. gh-issue: 93442
+.. nonce: 4M4NDb
+.. section: C API
+
+Add C++ overloads for _Py_CAST_impl() to handle 0/NULL. This will allow C++
+extensions that pass 0 or NULL to macros using _Py_CAST() to continue to
+compile.
--- /dev/null
+.. date: 2022-07-23-19-16-25
+.. gh-issue: 93351
+.. nonce: 0Jyvu-
+.. release date: 2022-07-25
+.. section: Core and Builtins
+
+:class:`ast.AST` node positions are now validated when provided to
+:func:`compile` and other related functions. If invalid positions are
+detected, a :exc:`ValueError` will be raised.
+
+..
+
+.. date: 2022-07-22-12-53-34
+.. gh-issue: 94438
+.. nonce: hNqACc
+.. section: Core and Builtins
+
+Fix an issue that caused extended opcode arguments and some conditional pops
+to be ignored when calculating valid jump targets for assignments to the
+``f_lineno`` attribute of frame objects. In some cases, this could cause
+inconsistent internal state, resulting in a hard crash of the interpreter.
+
+..
+
+.. date: 2022-07-21-19-19-20
+.. gh-issue: 95060
+.. nonce: 4xdT1f
+.. section: Core and Builtins
+
+Undocumented ``PyCode_Addr2Location`` function now properly returns when
+``addrq`` argument is less than zero.
+
+..
+
+.. date: 2022-07-21-17-54-52
+.. gh-issue: 95113
+.. nonce: NnSLpT
+.. section: Core and Builtins
+
+Replace all ``EXTENDED_ARG_QUICK`` instructions with basic
+:opcode:`EXTENDED_ARG` instructions in unquickened code. Consumers of
+non-adaptive bytecode should be able to handle extended arguments the same
+way they were handled in CPython 3.10 and older.
+
+..
+
+.. date: 2022-07-20-13-46-01
+.. gh-issue: 91409
+.. nonce: dhL8Zo
+.. section: Core and Builtins
+
+Fix incorrect source location info caused by certain optimizations in the
+bytecode compiler.
+
+..
+
+.. date: 2022-07-19-16-30-59
+.. gh-issue: 94036
+.. nonce: _6Utkm
+.. section: Core and Builtins
+
+Fix incorrect source location info for some multi-line attribute accesses
+and method calls.
+
+..
+
+.. date: 2022-07-18-14-19-21
+.. gh-issue: 94739
+.. nonce: NQJQi7
+.. section: Core and Builtins
+
+Allow jumping within, out of, and across exception handlers in the debugger.
+
+..
+
+.. date: 2022-07-18-05-10-29
+.. gh-issue: 94949
+.. nonce: OsZ7_s
+.. section: Core and Builtins
+
+:func:`ast.parse` will no longer parse parenthesized context managers when
+passed ``feature_version`` less than ``(3, 9)``. Patch by Shantanu Jain.
+
+..
+
+.. date: 2022-07-18-04-48-34
+.. gh-issue: 94947
+.. nonce: df9gUw
+.. section: Core and Builtins
+
+:func:`ast.parse` will no longer parse assignment expressions when passed
+``feature_version`` less than ``(3, 8)``. Patch by Shantanu Jain.
+
+..
+
+.. date: 2022-07-17-15-54-29
+.. gh-issue: 91256
+.. nonce: z7i7Q5
+.. section: Core and Builtins
+
+Ensures the program name is known for help text during interpreter startup.
+
+..
+
+.. date: 2022-07-16-08-14-17
+.. gh-issue: 94869
+.. nonce: eRwMsX
+.. section: Core and Builtins
+
+Fix the column offsets for some expressions in multi-line f-strings
+:mod:`ast` nodes. Patch by Pablo Galindo.
+
+..
+
+.. date: 2022-07-15-22-16-08
+.. gh-issue: 94822
+.. nonce: zRRzBN
+.. section: Core and Builtins
+
+Fix an issue where lookups of metaclass descriptors may be ignored when an
+identically-named attribute also exists on the class itself.
+
+..
+
+.. date: 2022-07-15-16-15-04
+.. gh-issue: 91153
+.. nonce: HiBmtt
+.. section: Core and Builtins
+
+Fix an issue where a :class:`bytearray` item assignment could crash if it's
+resized by the new value's :meth:`__index__` method.
+
+..
+
+.. date: 2022-07-14-10-07-53
+.. gh-issue: 90699
+.. nonce: x3aG9m
+.. section: Core and Builtins
+
+Fix reference counting bug in :meth:`bool.__repr__`. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-07-24-12-59-02
+.. gh-issue: 95087
+.. nonce: VvqXkN
+.. section: Library
+
+Fix IndexError in parsing invalid date in the :mod:`email` module.
+
+..
+
+.. date: 2022-07-24-12-00-06
+.. gh-issue: 95199
+.. nonce: -5A64k
+.. section: Library
+
+Upgrade bundled setuptools to 63.2.0.
+
+..
+
+.. date: 2022-07-24-09-15-35
+.. gh-issue: 95194
+.. nonce: ERVmqG
+.. section: Library
+
+Upgrade bundled pip to 22.2.
+
+..
+
+.. date: 2022-07-22-21-18-17
+.. gh-issue: 95132
+.. nonce: n9anlw
+.. section: Library
+
+Fix a :mod:`sqlite3` regression where ``*args`` and ``**kwds`` were
+incorrectly relayed from :py:func:`~sqlite3.connect` to the
+:class:`~sqlite3.Connection` factory. The regression was introduced in
+3.11a1 with PR 24421 (:gh:`85128`). Patch by Erlend E. Aasland.`
+
+..
+
+.. date: 2022-07-22-17-19-57
+.. gh-issue: 93157
+.. nonce: RXByAk
+.. section: Library
+
+Fix :mod:`fileinput` module didn't support ``errors`` option when
+``inplace`` is true.
+
+..
+
+.. date: 2022-07-21-19-55-49
+.. gh-issue: 95105
+.. nonce: BIX2Km
+.. section: Library
+
+:meth:`wsgiref.types.InputStream.__iter__` should return
+``Iterator[bytes]``, not ``Iterable[bytes]``. Patch by Shantanu Jain.
+
+..
+
+.. date: 2022-07-15-08-13-51
+.. gh-issue: 94857
+.. nonce: 9_KvZJ
+.. section: Library
+
+Fix refleak in ``_io.TextIOWrapper.reconfigure``. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-07-14-00-43-52
+.. gh-issue: 94821
+.. nonce: e17ghU
+.. section: Library
+
+Fix binding of unix socket to empty address on Linux to use an available
+address from the abstract namespace, instead of "\0".
+
+..
+
+.. date: 2022-06-26-10-59-15
+.. gh-issue: 89988
+.. nonce: K8rnmt
+.. section: Library
+
+Fix memory leak in :class:`pickle.Pickler` when looking up
+:attr:`dispatch_table`. Patch by Kumar Aditya.
+
+..
+
+.. bpo: 47025
+.. date: 2022-03-16-14-24-14
+.. nonce: qtT3CE
+.. section: Library
+
+Drop support for :class:`bytes` on :attr:`sys.path`.
+
+..
+
+.. date: 2022-07-24-20-19-05
+.. gh-issue: 95212
+.. nonce: fHiU4e
+.. section: Tests
+
+Make multiprocessing test case ``test_shared_memory_recreate``
+parallel-safe.
+
+..
+
+.. date: 2022-07-14-11-13-26
+.. gh-issue: 94847
+.. nonce: s3Kr5p
+.. section: Build
+
+Fixed ``_decimal`` module build issue on GCC when compiling with LTO and
+pydebug. Debug builds no longer force inlining of functions.
+
+..
+
+.. date: 2022-07-14-02-45-44
+.. gh-issue: 94841
+.. nonce: lLRTdf
+.. section: Build
+
+Fix the possible performance regression of :c:func:`PyObject_Free` compiled
+with MSVC version 1932.
+
+..
+
+.. date: 2022-07-13-10-13-10
+.. gh-issue: 94801
+.. nonce: 3xUB24
+.. section: Build
+
+``configure`` now uses custom flags like ``ZLIB_CFLAGS`` and ``ZLIB_LIBS``
+when searching for headers and libraries.
+
+..
+
+.. date: 2022-07-12-13-39-18
+.. gh-issue: 94773
+.. nonce: koHKm5
+.. section: Build
+
+``deepfreeze.py`` now supports code object with frozensets that contain
+incompatible, unsortable types.
+
+..
+
+.. date: 2022-07-16-16-18-32
+.. gh-issue: 90844
+.. nonce: vwITT3
+.. section: Windows
+
+Allow virtual environments to correctly launch when they have spaces in the
+path.
+
+..
+
+.. date: 2022-07-12-20-45-43
+.. gh-issue: 94772
+.. nonce: uNMmdG
+.. section: Windows
+
+Fix incorrect handling of shebang lines in py.exe launcher
+
+..
+
+.. date: 2022-07-25-15-54-27
+.. gh-issue: 92678
+.. nonce: ziZpxz
+.. section: C API
+
+Adds unstable C-API functions ``_PyObject_VisitManagedDict`` and
+``_PyObject_ClearManagedDict`` to allow C extensions to allow the VM to
+manage their object's dictionaries.
+
+..
+
+.. date: 2022-07-17-18-21-40
+.. gh-issue: 94930
+.. nonce: gPFGDL
+.. section: C API
+
+Fix ``SystemError`` raised when :c:func:`PyArg_ParseTupleAndKeywords` is
+used with ``#`` in ``(...)`` but without ``PY_SSIZE_T_CLEAN`` defined.
+
+..
+
+.. date: 2022-07-16-14-57-23
+.. gh-issue: 94864
+.. nonce: Pb41ab
+.. section: C API
+
+Fix ``PyArg_Parse*`` with deprecated format units "u" and "Z". It returned 1
+(success) when warnings are turned into exceptions.
+
+..
+
+.. date: 2022-07-12-17-39-32
+.. gh-issue: 94731
+.. nonce: 9CPJNU
+.. section: C API
+
+Python again uses C-style casts for most casting operations when compiled
+with C++. This may trigger compiler warnings, if they are enabled with e.g.
+``-Wold-style-cast `` or ``-Wzero-as-null-pointer-constant`` options for
+``g++``.
--- /dev/null
+.. date: 2022-07-31-13-23-12
+.. gh-issue: 95150
+.. nonce: 67FXVo
+.. release date: 2022-08-05
+.. section: Core and Builtins
+
+Update code object hashing and equality to consider all debugging and
+exception handling tables. This fixes an issue where certain non-identical
+code objects could be "deduplicated" during compilation.
+
+..
+
+.. date: 2022-07-28-08-33-31
+.. gh-issue: 95355
+.. nonce: yN4XVk
+.. section: Core and Builtins
+
+``_PyPegen_Parser_New`` now properly detects token memory allocation errors.
+Patch by Honglin Zhu.
+
+..
+
+.. date: 2022-07-27-14-21-57
+.. gh-issue: 90081
+.. nonce: HVAS5x
+.. section: Core and Builtins
+
+Run Python code in tracer/profiler function at full speed. Fixes slowdown in
+earlier versions of 3.11.
+
+..
+
+.. date: 2022-07-27-14-05-07
+.. gh-issue: 95324
+.. nonce: 28Q5u7
+.. section: Core and Builtins
+
+Emit a warning in debug mode if an object does not call
+:c:func:`PyObject_GC_UnTrack` before deallocation. Patch by Pablo Galindo.
+
+..
+
+.. date: 2022-07-24-00-27-47
+.. gh-issue: 95185
+.. nonce: ghYTZx
+.. section: Core and Builtins
+
+Prevented crashes in the AST constructor when compiling some absurdly long
+expressions like ``"+0"*1000000``. :exc:`RecursionError` is now raised
+instead. Patch by Pablo Galindo
+
+..
+
+.. date: 2022-07-23-19-16-25
+.. gh-issue: 93351
+.. nonce: 0Jyvu-
+.. section: Core and Builtins
+
+:class:`ast.AST` node positions are now validated when provided to
+:func:`compile` and other related functions. If invalid positions are
+detected, a :exc:`ValueError` will be raised.
+
+..
+
+.. date: 2022-07-19-09-41-55
+.. gh-issue: 94938
+.. nonce: xYBlM7
+.. section: Core and Builtins
+
+Fix error detection in some builtin functions when keyword argument name is
+an instance of a str subclass with overloaded ``__eq__`` and ``__hash__``.
+Previously it could cause SystemError or other undesired behavior.
+
+..
+
+.. date: 2022-08-03-21-01-17
+.. gh-issue: 95609
+.. nonce: xxyjyX
+.. section: Library
+
+Update bundled pip to 22.2.2.
+
+..
+
+.. date: 2022-08-03-16-52-32
+.. gh-issue: 95289
+.. nonce: FMnHlV
+.. section: Library
+
+Fix :class:`asyncio.TaskGroup` to propagate exception when
+:exc:`asyncio.CancelledError` was replaced with another exception by a
+context manger. Patch by Kumar Aditya and Guido van Rossum.
+
+..
+
+.. date: 2022-07-27-19-43-07
+.. gh-issue: 95339
+.. nonce: NuVQ68
+.. section: Library
+
+Update bundled pip to 22.2.1.
+
+..
+
+.. date: 2022-07-27-11-35-45
+.. gh-issue: 95045
+.. nonce: iysT-Q
+.. section: Library
+
+Fix GC crash when deallocating ``_lsprof.Profiler`` by untracking it before
+calling any callbacks. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-07-24-18-00-42
+.. gh-issue: 95097
+.. nonce: lu5qNf
+.. section: Library
+
+Fix :func:`asyncio.run` for :class:`asyncio.Task` implementations without
+:meth:`~asyncio.Task.uncancel` method. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-07-23-10-50-05
+.. gh-issue: 93899
+.. nonce: VT34A5
+.. section: Library
+
+Fix check for existence of :data:`os.EFD_CLOEXEC`, :data:`os.EFD_NONBLOCK`
+and :data:`os.EFD_SEMAPHORE` flags on older kernel versions where these
+flags are not present. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-07-23-10-42-05
+.. gh-issue: 95166
+.. nonce: xw6p3C
+.. section: Library
+
+Fix :meth:`concurrent.futures.Executor.map` to cancel the currently waiting
+on future on an error - e.g. TimeoutError or KeyboardInterrupt.
+
+..
+
+.. date: 2022-07-21-22-59-22
+.. gh-issue: 95109
+.. nonce: usxA9r
+.. section: Library
+
+Ensure that timeouts scheduled with :class:`asyncio.Timeout` that have
+already expired are delivered promptly.
+
+..
+
+.. date: 2022-06-02-08-40-58
+.. gh-issue: 91810
+.. nonce: Gtk44w
+.. section: Library
+
+Suppress writing an XML declaration in open files in ``ElementTree.write()``
+with ``encoding='unicode'`` and ``xml_declaration=None``.
+
+..
+
+.. date: 2022-04-12-18-05-40
+.. gh-issue: 91447
+.. nonce: N_Fs4H
+.. section: Library
+
+Fix findtext in the xml module to only give an empty string when the text
+attribute is set to None.
+
+..
+
+.. date: 2022-08-03-13-35-08
+.. gh-issue: 91207
+.. nonce: eJ4pPf
+.. section: Documentation
+
+Fix stylesheet not working in Windows CHM htmlhelp docs and add warning that
+they are deprecated. Contributed by C.A.M. Gerlach.
+
+..
+
+.. date: 2022-07-29-23-02-19
+.. gh-issue: 95451
+.. nonce: -tgB93
+.. section: Documentation
+
+Update library documentation with :ref:`availability information
+<wasm-availability>` on WebAssembly platforms ``wasm32-emscripten`` and
+``wasm32-wasi``.
+
+..
+
+.. date: 2022-07-29-09-04-02
+.. gh-issue: 95415
+.. nonce: LKTyw6
+.. section: Documentation
+
+Use consistent syntax for platform availability. The directive now supports
+a content body and emits a warning when it encounters an unknown platform.
+
+..
+
+.. date: 2022-06-19-18-18-22
+.. gh-issue: 86128
+.. nonce: 39DDTD
+.. section: Documentation
+
+Document a limitation in ThreadPoolExecutor where its exit handler is
+executed before any handlers in atexit.
+
+..
+
+.. date: 2022-08-05-09-57-43
+.. gh-issue: 95573
+.. nonce: edMdQB
+.. section: Tests
+
+:source:`Lib/test/test_asyncio/test_ssl.py` exposed a bug in the macOS
+kernel where intense concurrent load on non-blocking sockets occasionally
+causes :const:`errno.ENOBUFS` ("No buffer space available") to be emitted.
+FB11063974 filed with Apple, in the mean time as a workaround buffer size
+used in tests on macOS is decreased to avoid intermittent failures. Patch
+by Fantix King.
+
+..
+
+.. date: 2022-07-26-15-22-19
+.. gh-issue: 95280
+.. nonce: h8HvbP
+.. section: Tests
+
+Fix problem with ``test_ssl`` ``test_get_ciphers`` on systems that require
+perfect forward secrecy (PFS) ciphers.
+
+..
+
+.. date: 2022-07-08-12-22-00
+.. gh-issue: 94675
+.. nonce: IiTs5f
+.. section: Tests
+
+Add a regression test for :mod:`re` exponentional slowdown when using
+rjsmin.
+
+..
+
+.. date: 2022-07-26-18-13-34
+.. gh-issue: 94801
+.. nonce: 9fREfy
+.. section: Build
+
+Fix a regression in ``configure`` script that caused some header checks to
+ignore custom ``CPPFLAGS``. The regression was introduced in :gh:`94802`.
+
+..
+
+.. date: 2022-07-25-09-48-43
+.. gh-issue: 95145
+.. nonce: ZNS3dj
+.. section: Build
+
+wasm32-wasi builds no longer depend on WASIX's pthread stubs. Python now has
+its own stubbed pthread API.
+
+..
+
+.. date: 2022-07-25-08-59-35
+.. gh-issue: 95174
+.. nonce: g8woUW
+.. section: Build
+
+Python now detects missing ``dup`` function in WASI and works around some
+missing :mod:`errno`, :mod:`select`, and :mod:`socket` constants.
+
+..
+
+.. date: 2022-07-23-21-39-09
+.. gh-issue: 95174
+.. nonce: 7cYMZR
+.. section: Build
+
+Python now skips missing :mod:`socket` functions and methods on WASI. WASI
+can only create sockets from existing fd / accept and has no netdb.
+
+..
+
+.. date: 2022-07-21-09-17-01
+.. gh-issue: 95085
+.. nonce: E9x2S_
+.. section: Build
+
+Platforms ``wasm32-unknown-emscripten`` and ``wasm32-unknown-wasi`` have
+been promoted to :pep:`11` tier 3 platform support.
+
+..
+
+.. date: 2022-08-04-18-47-54
+.. gh-issue: 95656
+.. nonce: VJ1d13
+.. section: Windows
+
+Enable the :meth:`~sqlite3.Connection.enable_load_extension` :mod:`sqlite3`
+API.
+
+..
+
+.. date: 2022-08-04-01-12-27
+.. gh-issue: 95587
+.. nonce: Fvdv5q
+.. section: Windows
+
+Fixes some issues where the Windows installer would incorrectly detect
+certain features of an existing install when upgrading.
+
+..
+
+.. date: 2022-08-03-00-49-46
+.. gh-issue: 94399
+.. nonce: KvxHc0
+.. section: Windows
+
+Restores the behaviour of :ref:`launcher` for ``/usr/bin/env`` shebang
+lines, which will now search :envvar:`PATH` for an executable matching the
+given command. If none is found, the usual search process is used.
+
+..
+
+.. date: 2022-07-30-14-18-33
+.. gh-issue: 95445
+.. nonce: mjrTaq
+.. section: Windows
+
+Fixes the unsuccessful removal of the HTML document directory when
+uninstalling with Windows msi.
+
+..
+
+.. date: 2022-07-28-20-21-38
+.. gh-issue: 95359
+.. nonce: ywMrgu
+.. section: Windows
+
+Fix :ref:`launcher` handling of :file:`py.ini` commands (it was incorrectly
+expecting a ``py_`` prefix on keys) and crashes when reading per-user
+configuration file.
+
+..
+
+.. date: 2022-07-26-20-33-12
+.. gh-issue: 95285
+.. nonce: w6fa22
+.. section: Windows
+
+Fix :ref:`launcher` handling of command lines where it is only passed a
+short executable name.
+
+..
+
+.. date: 2022-08-04-20-07-51
+.. gh-issue: 65802
+.. nonce: xnThWe
+.. section: IDLE
+
+Document handling of extensions in Save As dialogs.
+
+..
+
+.. date: 2022-08-01-23-31-48
+.. gh-issue: 95191
+.. nonce: U7vryB
+.. section: IDLE
+
+Include prompts when saving Shell (interactive input and output).
+
+..
+
+.. date: 2022-07-31-22-15-14
+.. gh-issue: 95511
+.. nonce: WX6PmB
+.. section: IDLE
+
+Fix the Shell context menu copy-with-prompts bug of copying an extra line
+when one selects whole lines.
+
+..
+
+.. date: 2022-07-30-15-10-39
+.. gh-issue: 95471
+.. nonce: z3scVG
+.. section: IDLE
+
+In the Edit menu, move ``Select All`` and add a new separator.
+
+..
+
+.. date: 2022-07-29-11-08-52
+.. gh-issue: 95411
+.. nonce: dazlqH
+.. section: IDLE
+
+Enable using IDLE's module browser with .pyw files.
+
+..
+
+.. date: 2022-07-28-18-56-57
+.. gh-issue: 89610
+.. nonce: hcosiM
+.. section: IDLE
+
+Add .pyi as a recognized extension for IDLE on macOS. This allows opening
+stub files by double clicking on them in the Finder.
+
+..
+
+.. date: 2022-08-03-14-39-08
+.. gh-issue: 92678
+.. nonce: ozFTEx
+.. section: C API
+
+Restore the 3.10 behavior for multiple inheritance of C extension classes
+that store their dictionary at the end of the struct.
+
+..
+
+.. date: 2022-07-19-22-37-40
+.. gh-issue: 94936
+.. nonce: LGlmKv
+.. section: C API
+
+Added :c:func:`PyCode_GetVarnames`, :c:func:`PyCode_GetCellvars` and
+:c:func:`PyCode_GetFreevars` for accessing ``co_varnames``, ``co_cellvars``
+and ``co_freevars`` respectively via the C API.
--- /dev/null
+.. date: 2022-08-07-16-53-38
+.. gh-issue: 95778
+.. nonce: ch010gps
+.. release date: 2022-09-11
+.. section: Security
+
+Converting between :class:`int` and :class:`str` in bases other than 2
+(binary), 4, 8 (octal), 16 (hexadecimal), or 32 such as base 10 (decimal)
+now raises a :exc:`ValueError` if the number of digits in string form is
+above a limit to avoid potential denial of service attacks due to the
+algorithmic complexity. This is a mitigation for `CVE-2020-10735
+<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10735>`_.
+
+This new limit can be configured or disabled by environment variable,
+command line flag, or :mod:`sys` APIs. See the :ref:`integer string
+conversion length limitation <int_max_str_digits>` documentation. The
+default limit is 4300 digits in string form.
+
+Patch by Gregory P. Smith [Google] and Christian Heimes [Red Hat] with
+feedback from Victor Stinner, Thomas Wouters, Steve Dower, Ned Deily, and
+Mark Dickinson.
+
+..
+
+.. date: 2022-09-09-13-13-27
+.. gh-issue: 96678
+.. nonce: vMxi9F
+.. section: Core and Builtins
+
+Fix case of undefined behavior in ceval.c
+
+..
+
+.. date: 2022-09-07-13-38-37
+.. gh-issue: 96641
+.. nonce: wky0Fc
+.. section: Core and Builtins
+
+Do not expose ``KeyWrapper`` in :mod:`_functools`.
+
+..
+
+.. date: 2022-09-07-12-02-11
+.. gh-issue: 96636
+.. nonce: YvN-K6
+.. section: Core and Builtins
+
+Ensure that tracing, ``sys.setrace()``, is turned on immediately. In
+pre-release versions of 3.11, some tracing events might have been lost when
+turning on tracing in a ``__del__`` method or interrupt.
+
+..
+
+.. date: 2022-09-06-16-54-49
+.. gh-issue: 96572
+.. nonce: 8DRsaW
+.. section: Core and Builtins
+
+Fix use after free in trace refs build mode. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-09-06-16-22-13
+.. gh-issue: 96611
+.. nonce: 14wIX8
+.. section: Core and Builtins
+
+When loading a file with invalid UTF-8 inside a multi-line string, a correct
+SyntaxError is emitted.
+
+..
+
+.. date: 2022-09-06-14-26-36
+.. gh-issue: 96612
+.. nonce: P4ZbeY
+.. section: Core and Builtins
+
+Make sure that incomplete frames do not show up in tracemalloc traces.
+
+..
+
+.. date: 2022-09-05-16-43-44
+.. gh-issue: 96569
+.. nonce: 9lmTCC
+.. section: Core and Builtins
+
+Remove two cases of undefined behavior, by adding NULL checks.
+
+..
+
+.. date: 2022-09-05-15-07-25
+.. gh-issue: 96582
+.. nonce: HEsL5s
+.. section: Core and Builtins
+
+Fix possible ``NULL`` pointer dereference in ``_PyThread_CurrentFrames``.
+Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-08-28-10-51-19
+.. gh-issue: 96352
+.. nonce: jTLD2d
+.. section: Core and Builtins
+
+Fix :exc:`AttributeError` missing ``name`` and ``obj`` attributes in
+:meth:`object.__getattribute__`. Patch by Philip Georgi.
+
+..
+
+.. date: 2022-08-25-10-19-34
+.. gh-issue: 96268
+.. nonce: AbYrLB
+.. section: Core and Builtins
+
+Loading a file with invalid UTF-8 will now report the broken character at
+the correct location.
+
+..
+
+.. date: 2022-08-22-21-33-28
+.. gh-issue: 96187
+.. nonce: W_6SRG
+.. section: Core and Builtins
+
+Fixed a bug that caused ``_PyCode_GetExtra`` to return garbage for negative
+indexes. Patch by Pablo Galindo
+
+..
+
+.. date: 2022-08-19-06-51-17
+.. gh-issue: 96071
+.. nonce: mVgPAo
+.. section: Core and Builtins
+
+Fix a deadlock in :c:func:`PyGILState_Ensure` when allocating new thread
+state. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-08-18-13-47-59
+.. gh-issue: 96046
+.. nonce: 5Hqbka
+.. section: Core and Builtins
+
+:c:func:`PyType_Ready` now initializes ``ht_cached_keys`` and performs
+additional checks to ensure that type objects are properly configured. This
+avoids crashes in 3rd party packages that don't use regular API to create
+new types.
+
+..
+
+.. date: 2022-08-11-11-01-56
+.. gh-issue: 95818
+.. nonce: iClLdl
+.. section: Core and Builtins
+
+Skip over incomplete frames in :c:func:`PyThreadState_GetFrame`.
+
+..
+
+.. date: 2022-08-11-09-19-55
+.. gh-issue: 95876
+.. nonce: YpQfoV
+.. section: Core and Builtins
+
+Fix format string in ``_PyPegen_raise_error_known_location`` that can lead
+to memory corruption on some 64bit systems. The function was building a
+tuple with ``i`` (int) instead of ``n`` (Py_ssize_t) for Py_ssize_t
+arguments.
+
+..
+
+.. date: 2022-08-04-18-46-54
+.. gh-issue: 95605
+.. nonce: FbpCoG
+.. section: Core and Builtins
+
+Fix misleading contents of error message when converting an all-whitespace
+string to :class:`float`.
+
+..
+
+.. date: 2022-07-19-04-34-56
+.. gh-issue: 94996
+.. nonce: dV564A
+.. section: Core and Builtins
+
+:func:`ast.parse` will no longer parse function definitions with
+positional-only params when passed ``feature_version`` less than ``(3, 8)``.
+Patch by Shantanu Jain.
+
+..
+
+.. date: 2022-09-08-23-23-24
+.. gh-issue: 96700
+.. nonce: J0MQGK
+.. section: Library
+
+Fix incorrect error message in the :mod:`io` module.
+
+..
+
+.. date: 2022-09-07-22-49-37
+.. gh-issue: 96652
+.. nonce: YqOKxI
+.. section: Library
+
+Fix the faulthandler implementation of ``faulthandler.register(signal,
+chain=True)`` if the ``sigaction()`` function is not available: don't call
+the previous signal handler if it's NULL. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-09-04-12-32-52
+.. gh-issue: 68163
+.. nonce: h6TJCc
+.. section: Library
+
+Correct conversion of :class:`numbers.Rational`'s to :class:`float`.
+
+..
+
+.. date: 2022-08-29-15-28-39
+.. gh-issue: 96385
+.. nonce: uLRTsf
+.. section: Library
+
+Fix ``TypeVarTuple.__typing_prepare_subst__``. ``TypeError`` was not raised
+when using more than one ``TypeVarTuple``, like ``[*T, *V]`` in type alias
+substitutions.
+
+..
+
+.. date: 2022-08-27-14-38-49
+.. gh-issue: 90467
+.. nonce: VOOB0p
+.. section: Library
+
+Fix :class:`asyncio.streams.StreamReaderProtocol` to keep a strong reference
+to the created task, so that it's not garbage collected
+
+..
+
+.. date: 2022-08-22-18-42-17
+.. gh-issue: 96159
+.. nonce: 3bFU39
+.. section: Library
+
+Fix a performance regression in logging TimedRotatingFileHandler. Only check
+for special files when the rollover time has passed.
+
+..
+
+.. date: 2022-08-22-13-54-20
+.. gh-issue: 96175
+.. nonce: bH7zGU
+.. section: Library
+
+Fix unused ``localName`` parameter in the ``Attr`` class in
+:mod:`xml.dom.minidom`.
+
+..
+
+.. date: 2022-08-19-18-21-01
+.. gh-issue: 96125
+.. nonce: ODcF1Y
+.. section: Library
+
+Fix incorrect condition that causes ``sys.thread_info.name`` to be wrong on
+pthread platforms.
+
+..
+
+.. date: 2022-08-18-14-53-53
+.. gh-issue: 95463
+.. nonce: GpP05c
+.. section: Library
+
+Remove an incompatible change from :issue:`28080` that caused a regression
+that ignored the utf8 in ``ZipInfo.flag_bits``. Patch by Pablo Galindo.
+
+..
+
+.. date: 2022-08-11-18-52-17
+.. gh-issue: 95899
+.. nonce: _Bi4uG
+.. section: Library
+
+Fix :class:`asyncio.Runner` to call :func:`asyncio.set_event_loop` only once
+to avoid calling :meth:`~asyncio.AbstractChildWatcher.attach_loop` multiple
+times on child watchers. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-08-11-18-22-29
+.. gh-issue: 95736
+.. nonce: LzRZXe
+.. section: Library
+
+Fix :class:`unittest.IsolatedAsyncioTestCase` to set event loop before
+calling setup functions. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-08-08-01-42-11
+.. gh-issue: 95704
+.. nonce: MOPFfX
+.. section: Library
+
+When a task catches :exc:`asyncio.CancelledError` and raises some other
+error, the other error should generally not silently be suppressed.
+
+..
+
+.. date: 2022-07-25-15-45-06
+.. gh-issue: 95231
+.. nonce: i807-g
+.. section: Library
+
+Fail gracefully if :data:`~errno.EPERM` or :data:`~errno.ENOSYS` is raised
+when loading :mod:`crypt` methods. This may happen when trying to load
+``MD5`` on a Linux kernel with :abbr:`FIPS (Federal Information Processing
+Standard)` enabled.
+
+..
+
+.. date: 2022-07-09-08-55-04
+.. gh-issue: 74116
+.. nonce: 0XwYC1
+.. section: Library
+
+Allow :meth:`asyncio.StreamWriter.drain` to be awaited concurrently by
+multiple tasks. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-05-19-22-34-42
+.. gh-issue: 92986
+.. nonce: e6uKxj
+.. section: Library
+
+Fix :func:`ast.unparse` when ``ImportFrom.level`` is None
+
+..
+
+.. date: 2022-08-19-17-07-45
+.. gh-issue: 96098
+.. nonce: nDp43u
+.. section: Documentation
+
+Improve discoverability of the higher level concurrent.futures module by
+providing clearer links from the lower level threading and multiprocessing
+modules.
+
+..
+
+.. date: 2022-08-13-20-34-51
+.. gh-issue: 95957
+.. nonce: W9ZZAx
+.. section: Documentation
+
+What's New 3.11 now has instructions for how to provide compiler and linker
+flags for Tcl/Tk and OpenSSL on RHEL 7 and CentOS 7.
+
+..
+
+.. date: 2022-08-22-14-59-42
+.. gh-issue: 95243
+.. nonce: DeD66V
+.. section: Tests
+
+Mitigate the inherent race condition from using find_unused_port() in
+testSockName() by trying to find an unused port a few times before failing.
+Patch by Ross Burton.
+
+..
+
+.. date: 2022-07-08-10-28-23
+.. gh-issue: 94682
+.. nonce: ZtGt_0
+.. section: Build
+
+Build and test with OpenSSL 1.1.1q
+
+..
+
+.. date: 2022-09-07-00-11-33
+.. gh-issue: 96577
+.. nonce: kV4K_1
+.. section: Windows
+
+Fixes a potential buffer overrun in :mod:`msilib`.
+
+..
+
+.. date: 2022-09-05-18-32-47
+.. gh-issue: 96559
+.. nonce: 561sUd
+.. section: Windows
+
+Fixes the Windows launcher not using the compatible interpretation of
+default tags found in configuration files when no tag was passed to the
+command.
--- /dev/null
+.. date: 2022-12-05-01-39-10
+.. gh-issue: 100001
+.. nonce: uD05Fc
+.. release date: 2022-12-06
+.. section: Security
+
+``python -m http.server`` no longer allows terminal control characters sent
+within a garbage request to be printed to the stderr server log.
+
+This is done by changing the :mod:`http.server`
+:class:`BaseHTTPRequestHandler` ``.log_message`` method to replace control
+characters with a ``\xHH`` hex escape before printing.
+
+..
+
+.. date: 2022-11-11-12-50-28
+.. gh-issue: 87604
+.. nonce: OtwH5L
+.. section: Security
+
+Avoid publishing list of active per-interpreter audit hooks via the
+:mod:`gc` module
+
+..
+
+.. date: 2022-11-04-09-29-36
+.. gh-issue: 98433
+.. nonce: l76c5G
+.. section: Security
+
+The IDNA codec decoder used on DNS hostnames by :mod:`socket` or
+:mod:`asyncio` related name resolution functions no longer involves a
+quadratic algorithm. This prevents a potential CPU denial of service if an
+out-of-spec excessive length hostname involving bidirectional characters
+were decoded. Some protocols such as :mod:`urllib` http ``3xx`` redirects
+potentially allow for an attacker to supply such a name.
+
+..
+
+.. date: 2022-10-26-21-04-23
+.. gh-issue: 98739
+.. nonce: keBWcY
+.. section: Security
+
+Update bundled libexpat to 2.5.0
+
+..
+
+.. date: 2022-09-28-12-10-57
+.. gh-issue: 97612
+.. nonce: y6NvOQ
+.. section: Security
+
+Fix a shell code injection vulnerability in the
+``get-remote-certificate.py`` example script. The script no longer uses a
+shell to run ``openssl`` commands. Issue reported and initial fix by Caleb
+Shortt. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-11-30-15-29-08
+.. gh-issue: 99886
+.. nonce: feJkSv
+.. section: Core and Builtins
+
+Fix a crash when an object which does not have a dictionary frees its
+instance values.
+
+..
+
+.. date: 2022-11-30-11-09-40
+.. gh-issue: 99891
+.. nonce: 9VomwB
+.. section: Core and Builtins
+
+Fix a bug in the tokenizer that could cause infinite recursion when showing
+syntax warnings that happen in the first line of the source. Patch by Pablo
+Galindo
+
+..
+
+.. date: 2022-11-26-05-34-00
+.. gh-issue: 99729
+.. nonce: A3ovwQ
+.. section: Core and Builtins
+
+Fix an issue that could cause frames to be visible to Python code as they
+are being torn down, possibly leading to memory corruption or hard crashes
+of the interpreter.
+
+..
+
+.. date: 2022-11-21-11-27-14
+.. gh-issue: 99578
+.. nonce: DcKoBJ
+.. section: Core and Builtins
+
+Fix a reference bug in :func:`_imp.create_builtin()` after the creation of
+the first sub-interpreter for modules ``builtins`` and ``sys``. Patch by
+Victor Stinner.
+
+..
+
+.. date: 2022-11-19-22-27-52
+.. gh-issue: 99581
+.. nonce: yKYPbf
+.. section: Core and Builtins
+
+Fixed a bug that was causing a buffer overflow if the tokenizer copies a
+line missing the newline caracter from a file that is as long as the
+available tokenizer buffer. Patch by Pablo galindo
+
+..
+
+.. date: 2022-11-18-11-24-25
+.. gh-issue: 99553
+.. nonce: F64h-n
+.. section: Core and Builtins
+
+Fix bug where an :exc:`ExceptionGroup` subclass can wrap a
+:exc:`BaseException`.
+
+..
+
+.. date: 2022-11-12-01-39-57
+.. gh-issue: 99370
+.. nonce: _cu32j
+.. section: Core and Builtins
+
+Fix zip path for venv created from a non-installed python on POSIX
+platforms.
+
+..
+
+.. date: 2022-11-10-02-11-23
+.. gh-issue: 99298
+.. nonce: NeArAJ
+.. section: Core and Builtins
+
+Fix an issue that could potentially cause incorrect error handling for some
+bytecode instructions.
+
+..
+
+.. date: 2022-11-08-16-35-25
+.. gh-issue: 99205
+.. nonce: 2YOoFT
+.. section: Core and Builtins
+
+Fix an issue that prevented :c:type:`PyThreadState` and
+:c:type:`PyInterpreterState` memory from being freed properly.
+
+..
+
+.. date: 2022-11-07-10-29-41
+.. gh-issue: 99181
+.. nonce: bfG4bI
+.. section: Core and Builtins
+
+Fix failure in :keyword:`except* <except_star>` with unhashable exceptions.
+
+..
+
+.. date: 2022-11-07-08-17-12
+.. gh-issue: 99204
+.. nonce: Mf4hMD
+.. section: Core and Builtins
+
+Fix calculation of :data:`sys._base_executable` when inside a POSIX virtual
+environment using copies of the python binary when the base installation
+does not provide the executable name used by the venv. Calculation will fall
+back to alternative names ("python<MAJOR>", "python<MAJOR>.<MINOR>").
+
+..
+
+.. date: 2022-11-06-22-59-02
+.. gh-issue: 96055
+.. nonce: TmQuJn
+.. section: Core and Builtins
+
+Update :mod:`faulthandler` to emit an error message with the proper
+unexpected signal number. Patch by Dong-hee Na.
+
+..
+
+.. date: 2022-11-06-13-25-01
+.. gh-issue: 99153
+.. nonce: uE3CVL
+.. section: Core and Builtins
+
+Fix location of :exc:`SyntaxError` for a :keyword:`try` block with both
+:keyword:`except` and :keyword:`except* <except_star>`.
+
+..
+
+.. date: 2022-11-06-00-17-58
+.. gh-issue: 99103
+.. nonce: bFA9BX
+.. section: Core and Builtins
+
+Fix the error reporting positions of specialized traceback anchors when the
+source line contains Unicode characters.
+
+..
+
+.. date: 2022-10-31-21-01-35
+.. gh-issue: 98852
+.. nonce: MYaRN6
+.. section: Core and Builtins
+
+Fix subscription of type aliases containing bare generic types or types like
+:class:`~typing.TypeVar`: for example ``tuple[A, T][int]`` and
+``tuple[TypeVar, T][int]``, where ``A`` is a generic type, and ``T`` is a
+type variable.
+
+..
+
+.. date: 2022-10-31-18-03-10
+.. gh-issue: 98925
+.. nonce: zpdjVd
+.. section: Core and Builtins
+
+Lower the recursion depth for marshal on WASI to support wasmtime 2.0/main.
+
+..
+
+.. date: 2022-10-28-14-52-55
+.. gh-issue: 98783
+.. nonce: iG0kMs
+.. section: Core and Builtins
+
+Fix multiple crashes in debug mode when ``str`` subclasses are used instead
+of ``str`` itself.
+
+..
+
+.. date: 2022-10-21-11-28-53
+.. gh-issue: 99257
+.. nonce: nmcuf-
+.. section: Core and Builtins
+
+Fix an issue where member descriptors (such as those for
+:attr:`~object.__slots__`) could behave incorrectly or crash instead of
+raising a :exc:`TypeError` when accessed via an instance of an invalid type.
+
+..
+
+.. date: 2022-10-19-23-48-46
+.. gh-issue: 98374
+.. nonce: eOBh8M
+.. section: Core and Builtins
+
+Suppress ImportError for invalid query for help() command. Patch by Dong-hee
+Na.
+
+..
+
+.. date: 2022-10-19-01-01-08
+.. gh-issue: 98415
+.. nonce: ZS2eWh
+.. section: Core and Builtins
+
+Fix detection of MAC addresses for :mod:`uuid` on certain OSs. Patch by
+Chaim Sanders
+
+..
+
+.. date: 2022-10-15-23-15-14
+.. gh-issue: 92119
+.. nonce: PMSwwG
+.. section: Core and Builtins
+
+Print exception class name instead of its string representation when raising
+errors from :mod:`ctypes` calls.
+
+..
+
+.. date: 2022-10-06-15-45-57
+.. gh-issue: 96078
+.. nonce: fS-6mU
+.. section: Core and Builtins
+
+:func:`os.sched_yield` now release the GIL while calling sched_yield(2).
+Patch by Dong-hee Na.
+
+..
+
+.. date: 2022-10-06-05-41-01
+.. gh-issue: 93354
+.. nonce: 6BpHl2
+.. section: Core and Builtins
+
+Fix an issue that could delay the specialization of :opcode:`PRECALL`
+instructions.
+
+..
+
+.. date: 2022-10-05-17-02-22
+.. gh-issue: 97943
+.. nonce: LYAWlE
+.. section: Core and Builtins
+
+Bugfix: :func:`PyFunction_GetAnnotations` should return a borrowed
+reference. It was returning a new reference.
+
+..
+
+.. date: 2022-10-04-02-00-10
+.. gh-issue: 97779
+.. nonce: f3N1hI
+.. section: Core and Builtins
+
+Ensure that all Python frame objects are backed by "complete" frames.
+
+..
+
+.. date: 2022-10-01-08-55-09
+.. gh-issue: 97591
+.. nonce: pw6kkH
+.. section: Core and Builtins
+
+Fixed a missing incref/decref pair in ``Exception.__setstate__()``. Patch by
+Ofey Chan.
+
+..
+
+.. date: 2022-09-29-15-19-29
+.. gh-issue: 94526
+.. nonce: wq5m6T
+.. section: Core and Builtins
+
+Fix the Python path configuration used to initialized :data:`sys.path` at
+Python startup. Paths are no longer encoded to UTF-8/strict to avoid
+encoding errors if it contains surrogate characters (bytes paths are decoded
+with the surrogateescape error handler). Patch by Victor Stinner.
+
+..
+
+.. date: 2022-09-20-11-06-45
+.. gh-issue: 95921
+.. nonce: dkcRQn
+.. section: Core and Builtins
+
+Fix overly-broad source position information for chained comparisons used as
+branching conditions.
+
+..
+
+.. date: 2022-09-16-16-54-35
+.. gh-issue: 96387
+.. nonce: GRzewg
+.. section: Core and Builtins
+
+At Python exit, sometimes a thread holding the GIL can wait forever for a
+thread (usually a daemon thread) which requested to drop the GIL, whereas
+the thread already exited. To fix the race condition, the thread which
+requested the GIL drop now resets its request before exiting. Issue
+discovered and analyzed by Mingliang ZHAO. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-09-16-12-36-13
+.. gh-issue: 96864
+.. nonce: PLU3i8
+.. section: Core and Builtins
+
+Fix a possible assertion failure, fatal error, or :exc:`SystemError` if a
+line tracing event raises an exception while opcode tracing is enabled.
+
+..
+
+.. date: 2022-09-13-12-06-46
+.. gh-issue: 96678
+.. nonce: NqGFyb
+.. section: Core and Builtins
+
+Fix undefined behaviour in C code of null pointer arithmetic.
+
+..
+
+.. date: 2022-09-12-16-58-22
+.. gh-issue: 96754
+.. nonce: 0GRme5
+.. section: Core and Builtins
+
+Make sure that all frame objects created are created from valid interpreter
+frames. Prevents the possibility of invalid frames in backtraces and signal
+handlers.
+
+..
+
+.. date: 2022-08-29-13-06-58
+.. gh-issue: 95196
+.. nonce: eGRR4b
+.. section: Core and Builtins
+
+Disable incorrect pickling of the C implemented classmethod descriptors.
+
+..
+
+.. date: 2022-08-15-21-08-11
+.. gh-issue: 96005
+.. nonce: 6eoc8k
+.. section: Core and Builtins
+
+On WASI :data:`~errno.ENOTCAPABLE` is now mapped to :exc:`PermissionError`.
+The :mod:`errno` modules exposes the new error number. ``getpath.py`` now
+ignores :exc:`PermissionError` when it cannot open landmark files
+``pybuilddir.txt`` and ``pyenv.cfg``.
+
+..
+
+.. date: 2022-06-10-16-37-44
+.. gh-issue: 93696
+.. nonce: 65BI2R
+.. section: Core and Builtins
+
+Allow :mod:`pdb` to locate source for frozen modules in the standard
+library.
+
+..
+
+.. bpo: 31718
+.. date: 2020-02-23-23-48-15
+.. nonce: sXko5e
+.. section: Core and Builtins
+
+Raise :exc:`ValueError` instead of :exc:`SystemError` when methods of
+uninitialized :class:`io.IncrementalNewlineDecoder` objects are called.
+Patch by Oren Milman.
+
+..
+
+.. bpo: 38031
+.. date: 2019-09-04-19-09-49
+.. nonce: Yq4L72
+.. section: Core and Builtins
+
+Fix a possible assertion failure in :class:`io.FileIO` when the opener
+returns an invalid file descriptor.
+
+..
+
+.. date: 2022-12-05-13-40-15
+.. gh-issue: 100001
+.. nonce: 78ReYp
+.. section: Library
+
+Also \ escape \s in the http.server BaseHTTPRequestHandler.log_message so
+that it is technically possible to parse the line and reconstruct what the
+original data was. Without this a \xHH is ambiguious as to if it is a hex
+replacement we put in or the characters r"\x" came through in the original
+request line.
+
+..
+
+.. date: 2022-12-02-13-05-00
+.. gh-issue: 93453
+.. nonce: EFj1NN
+.. section: Library
+
+:func:`asyncio.get_event_loop` now only emits a deprecation warning when a
+new event loop was created implicitly. It no longer emits a deprecation
+warning if the current event loop was set.
+
+..
+
+.. date: 2022-11-21-17-56-18
+.. gh-issue: 51524
+.. nonce: nTykx8
+.. section: Library
+
+Fix bug when calling trace.CoverageResults with valid infile.
+
+..
+
+.. date: 2022-11-21-13-49-03
+.. gh-issue: 99645
+.. nonce: 9w1QKq
+.. section: Library
+
+Fix a bug in handling class cleanups in :class:`unittest.TestCase`. Now
+``addClassCleanup()`` uses separate lists for different ``TestCase``
+subclasses, and ``doClassCleanups()`` only cleans up the particular class.
+
+..
+
+.. date: 2022-11-15-10-55-24
+.. gh-issue: 97001
+.. nonce: KeQuVF
+.. section: Library
+
+Release the GIL when calling termios APIs to avoid blocking threads.
+
+..
+
+.. date: 2022-11-13-02-06-56
+.. gh-issue: 99341
+.. nonce: 8-OlwB
+.. section: Library
+
+Fix :func:`ast.increment_lineno` to also cover :class:`ast.TypeIgnore` when
+changing line numbers.
+
+..
+
+.. date: 2022-11-12-15-45-51
+.. gh-issue: 99418
+.. nonce: FxfAXS
+.. section: Library
+
+Fix bug in :func:`urllib.parse.urlparse` that causes URL schemes that begin
+with a digit, a plus sign, or a minus sign to be parsed incorrectly.
+
+..
+
+.. date: 2022-11-12-12-15-30
+.. gh-issue: 99382
+.. nonce: dKg_rW
+.. section: Library
+
+Check the number of arguments in substitution in user generics containing a
+:class:`~typing.TypeVarTuple` and one or more :class:`~typing.TypeVar`.
+
+..
+
+.. date: 2022-11-12-12-10-23
+.. gh-issue: 99379
+.. nonce: bcGhxF
+.. section: Library
+
+Fix substitution of :class:`~typing.ParamSpec` followed by
+:class:`~typing.TypeVarTuple` in generic aliases.
+
+..
+
+.. date: 2022-11-12-12-08-34
+.. gh-issue: 99344
+.. nonce: 7M_u8G
+.. section: Library
+
+Fix substitution of :class:`~typing.TypeVarTuple` and
+:class:`~typing.ParamSpec` together in user generics.
+
+..
+
+.. date: 2022-11-09-20-48-42
+.. gh-issue: 74044
+.. nonce: zBj26K
+.. section: Library
+
+Fixed bug where :func:`inspect.signature` reported incorrect arguments for
+decorated methods.
+
+..
+
+.. date: 2022-11-09-12-16-35
+.. gh-issue: 99275
+.. nonce: klOqoL
+.. section: Library
+
+Fix ``SystemError`` in :mod:`ctypes` when exception was not set during
+``__initsubclass__``.
+
+..
+
+.. date: 2022-11-09-08-40-52
+.. gh-issue: 99277
+.. nonce: J1P44O
+.. section: Library
+
+Remove older version of ``_SSLProtocolTransport.get_write_buffer_limits`` in
+:mod:`!asyncio.sslproto`
+
+..
+
+.. date: 2022-11-08-11-15-37
+.. gh-issue: 99248
+.. nonce: 1vt8xI
+.. section: Library
+
+fix negative numbers failing in verify()
+
+..
+
+.. date: 2022-11-06-12-44-51
+.. gh-issue: 99155
+.. nonce: vLZOzi
+.. section: Library
+
+Fix :class:`statistics.NormalDist` pickle with ``0`` and ``1`` protocols.
+
+..
+
+.. date: 2022-11-05-23-16-15
+.. gh-issue: 93464
+.. nonce: ucd4vP
+.. section: Library
+
+``enum.auto()`` is now correctly activated when combined with other
+assignment values. E.g. ``ONE = auto(), 'some text'`` will now evaluate as
+``(1, 'some text')``.
+
+..
+
+.. date: 2022-11-05-17-16-40
+.. gh-issue: 99134
+.. nonce: Msgspf
+.. section: Library
+
+Update the bundled copy of pip to version 22.3.1.
+
+..
+
+.. date: 2022-11-02-05-54-02
+.. gh-issue: 83004
+.. nonce: 0v8iyw
+.. section: Library
+
+Clean up refleak on failed module initialisation in :mod:`_zoneinfo`
+
+..
+
+.. date: 2022-11-02-05-53-25
+.. gh-issue: 83004
+.. nonce: qc_KHr
+.. section: Library
+
+Clean up refleaks on failed module initialisation in in :mod:`_pickle`
+
+..
+
+.. date: 2022-11-02-05-52-36
+.. gh-issue: 83004
+.. nonce: LBl79O
+.. section: Library
+
+Clean up refleak on failed module initialisation in :mod:`_io`.
+
+..
+
+.. date: 2022-10-31-12-34-03
+.. gh-issue: 98897
+.. nonce: rgNn4x
+.. section: Library
+
+Fix memory leak in :func:`math.dist` when both points don't have the same
+dimension. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-10-30-12-22-24
+.. gh-issue: 98706
+.. nonce: v1Kuy5
+.. section: Library
+
+[3.11] Applied changes from importlib_metadata `4.11.4 through 4.13
+<https://importlib-metadata.readthedocs.io/en/latest/history.html#v4-13-0>`_,
+including compatibility and robustness fixes for ``Distribution`` objects
+without ``_normalized_name``, disallowing invalid inputs to
+``Distribution.from_name``, and refined behaviors in
+``PathDistribution._name_from_stem`` and
+``PathDistribution._normalized_name``.
+
+..
+
+.. date: 2022-10-29-03-40-18
+.. gh-issue: 98793
+.. nonce: WSPB4A
+.. section: Library
+
+Fix argument typechecks in :func:`!_overlapped.WSAConnect` and
+:func:`!_overlapped.Overlapped.WSASendTo` functions.
+
+..
+
+.. date: 2022-10-28-23-44-17
+.. gh-issue: 98744
+.. nonce: sGHDWm
+.. section: Library
+
+Prevent crashing in :mod:`traceback` when retrieving the byte-offset for
+some source files that contain certain unicode characters.
+
+..
+
+.. date: 2022-10-27-12-56-38
+.. gh-issue: 98740
+.. nonce: ZoqqGM
+.. section: Library
+
+Fix internal error in the :mod:`re` module which in very rare circumstances
+prevented compilation of a regular expression containing a :ref:`conditional
+expression <re-conditional-expression>` without the "else" branch.
+
+..
+
+.. date: 2022-10-26-07-51-55
+.. gh-issue: 98703
+.. nonce: 0hW773
+.. section: Library
+
+Fix :meth:`asyncio.StreamWriter.drain` to call ``protocol.connection_lost``
+callback only once on Windows.
+
+..
+
+.. date: 2022-10-25-20-17-34
+.. gh-issue: 98624
+.. nonce: YQUPFy
+.. section: Library
+
+Add a mutex to unittest.mock.NonCallableMock to protect concurrent access to
+mock attributes.
+
+..
+
+.. date: 2022-10-23-18-30-39
+.. gh-issue: 89237
+.. nonce: kBui30
+.. section: Library
+
+Fix hang on Windows in ``subprocess.wait_closed()`` in :mod:`asyncio` with
+:class:`~asyncio.ProactorEventLoop`. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-10-19-18-31-53
+.. gh-issue: 98458
+.. nonce: vwyq7O
+.. section: Library
+
+Fix infinite loop in unittest when a self-referencing chained exception is
+raised
+
+..
+
+.. date: 2022-10-19-09-29-12
+.. gh-issue: 97928
+.. nonce: xj3im7
+.. section: Library
+
+:meth:`tkinter.Text.count` raises now an exception for options starting with
+"-" instead of silently ignoring them.
+
+..
+
+.. date: 2022-10-16-18-52-00
+.. gh-issue: 97966
+.. nonce: humlhz
+.. section: Library
+
+On ``uname_result``, restored expectation that ``_fields`` and ``_asdict``
+would include all six properties including ``processor``.
+
+..
+
+.. date: 2022-10-16-06-18-59
+.. gh-issue: 98307
+.. nonce: b2_CDu
+.. section: Library
+
+A :meth:`~logging.handlers.SysLogHandler.createSocket` method was added to
+:class:`~logging.handlers.SysLogHandler`.
+
+..
+
+.. date: 2022-10-14-19-57-37
+.. gh-issue: 96035
+.. nonce: 0xcX-p
+.. section: Library
+
+Fix bug in :func:`urllib.parse.urlparse` that causes certain port numbers
+containing whitespace, underscores, plus and minus signs, or non-ASCII
+digits to be incorrectly accepted.
+
+..
+
+.. date: 2022-10-14-11-46-31
+.. gh-issue: 98251
+.. nonce: Uxc9al
+.. section: Library
+
+Allow :mod:`venv` to pass along :envvar:`PYTHON*` variables to ``ensurepip``
+and ``pip`` when they do not impact path resolution
+
+..
+
+.. date: 2022-10-12-10-00-40
+.. gh-issue: 98178
+.. nonce: hspH51
+.. section: Library
+
+On macOS, fix a crash in :func:`syslog.syslog` in multi-threaded
+applications. On macOS, the libc ``syslog()`` function is not thread-safe,
+so :func:`syslog.syslog` no longer releases the GIL to call it. Patch by
+Victor Stinner.
+
+..
+
+.. date: 2022-10-10-07-07-31
+.. gh-issue: 96151
+.. nonce: K9fwoq
+.. section: Library
+
+Allow ``BUILTINS`` to be a valid field name for frozen dataclasses.
+
+..
+
+.. date: 2022-10-09-12-12-38
+.. gh-issue: 87730
+.. nonce: ClgP3f
+.. section: Library
+
+Wrap network errors consistently in urllib FTP support, so the test suite
+doesn't fail when a network is available but the public internet is not
+reachable.
+
+..
+
+.. date: 2022-10-08-19-39-27
+.. gh-issue: 98086
+.. nonce: y---WC
+.. section: Library
+
+Make sure ``patch.dict()`` can be applied on async functions.
+
+..
+
+.. date: 2022-10-06-23-42-00
+.. gh-issue: 90985
+.. nonce: s280JY
+.. section: Library
+
+Earlier in 3.11 we deprecated ``asyncio.Task.cancel("message")``. We
+realized we were too harsh, and have undeprecated it.
+
+..
+
+.. date: 2022-10-04-21-21-41
+.. gh-issue: 97837
+.. nonce: 19q-eg
+.. section: Library
+
+Change deprecate warning message in :mod:`unittest` from
+
+``It is deprecated to return a value!=None``
+
+to
+
+``It is deprecated to return a value that is not None from a test case``
+
+..
+
+.. date: 2022-10-04-07-55-19
+.. gh-issue: 97825
+.. nonce: mNdv1l
+.. section: Library
+
+Fixes :exc:`AttributeError` when :meth:`subprocess.check_output` is used
+with argument ``input=None`` and either of the arguments *encoding* or
+*errors* are used.
+
+..
+
+.. date: 2022-10-02-12-38-22
+.. gh-issue: 82836
+.. nonce: OvYLmC
+.. section: Library
+
+Fix :attr:`~ipaddress.IPv4Address.is_private` properties in the
+:mod:`ipaddress` module. Previously non-private networks (0.0.0.0/0) would
+return True from this method; now they correctly return False.
+
+..
+
+.. date: 2022-09-30-15-56-20
+.. gh-issue: 96827
+.. nonce: lzy1iw
+.. section: Library
+
+Avoid spurious tracebacks from :mod:`asyncio` when default executor cleanup
+is delayed until after the event loop is closed (e.g. as the result of a
+keyboard interrupt).
+
+..
+
+.. date: 2022-09-29-23-22-24
+.. gh-issue: 97592
+.. nonce: tpJg_J
+.. section: Library
+
+Avoid a crash in the C version of
+:meth:`asyncio.Future.remove_done_callback` when an evil argument is passed.
+
+..
+
+.. date: 2022-09-29-08-15-55
+.. gh-issue: 97639
+.. nonce: JSjWYW
+.. section: Library
+
+Remove ``tokenize.NL`` check from :mod:`tabnanny`.
+
+..
+
+.. date: 2022-09-25-20-42-33
+.. gh-issue: 73588
+.. nonce: uVtjEA
+.. section: Library
+
+Fix generation of the default name of :class:`tkinter.Checkbutton`.
+Previously, checkbuttons in different parent widgets could have the same
+short name and share the same state if arguments "name" and "variable" are
+not specified. Now they are globally unique.
+
+..
+
+.. date: 2022-09-22-14-35-02
+.. gh-issue: 97005
+.. nonce: yf21Q7
+.. section: Library
+
+Update bundled libexpat to 2.4.9
+
+..
+
+.. date: 2022-09-22-11-50-29
+.. gh-issue: 85760
+.. nonce: DETTPd
+.. section: Library
+
+Fix race condition in :mod:`asyncio` where
+:meth:`~asyncio.SubprocessProtocol.process_exited` called before the
+:meth:`~asyncio.SubprocessProtocol.pipe_data_received` leading to
+inconsistent output. Patch by Kumar Aditya.
+
+..
+
+.. date: 2022-09-17-13-15-10
+.. gh-issue: 96819
+.. nonce: 6RfqM7
+.. section: Library
+
+Fixed check in :mod:`multiprocessing.resource_tracker` that guarantees that
+the length of a write to a pipe is not greater than ``PIPE_BUF``.
+
+..
+
+.. date: 2022-09-15-00-37-33
+.. gh-issue: 96741
+.. nonce: 4b6czN
+.. section: Library
+
+Corrected type annotation for dataclass attribute
+``pstats.FunctionProfile.ncalls`` to be ``str``.
+
+..
+
+.. date: 2022-08-30-11-46-36
+.. gh-issue: 95987
+.. nonce: CV7_u4
+.. section: Library
+
+Fix ``repr`` of ``Any`` subclasses.
+
+..
+
+.. date: 2022-08-29-16-54-36
+.. gh-issue: 96388
+.. nonce: dCpJcu
+.. section: Library
+
+Work around missing socket functions in :class:`~socket.socket`'s
+``__repr__``.
+
+..
+
+.. date: 2022-08-29-12-35-28
+.. gh-issue: 96073
+.. nonce: WaGstf
+.. section: Library
+
+In :mod:`inspect`, fix overeager replacement of "``typing.``" in formatting
+annotations.
+
+..
+
+.. date: 2022-08-23-03-13-18
+.. gh-issue: 96192
+.. nonce: TJywOF
+.. section: Library
+
+Fix handling of ``bytes`` :term:`path-like objects <path-like object>` in
+:func:`os.ismount()`.
+
+..
+
+.. date: 2022-08-20-10-31-01
+.. gh-issue: 96052
+.. nonce: a6FhaD
+.. section: Library
+
+Fix handling compiler warnings (SyntaxWarning and DeprecationWarning) in
+:func:`codeop.compile_command` when checking for incomplete input.
+Previously it emitted warnings and raised a SyntaxError. Now it always
+returns ``None`` for incomplete input without emitting any warnings.
+
+..
+
+.. date: 2022-08-06-12-18-07
+.. gh-issue: 88863
+.. nonce: NnqsuJ
+.. section: Library
+
+To avoid apparent memory leaks when :func:`asyncio.open_connection` raises,
+break reference cycles generated by local exception and future instances
+(which has exception instance as its member var). Patch by Dong Uk, Kang.
+
+..
+
+.. date: 2022-07-22-09-09-08
+.. gh-issue: 91212
+.. nonce: 53O8Ab
+.. section: Library
+
+Fixed flickering of the turtle window when the tracer is turned off. Patch
+by Shin-myoung-serp.
+
+..
+
+.. date: 2022-07-08-08-39-35
+.. gh-issue: 88050
+.. nonce: 0aOC_m
+.. section: Library
+
+Fix :mod:`asyncio` subprocess transport to kill process cleanly when process
+is blocked and avoid ``RuntimeError`` when loop is closed. Patch by Kumar
+Aditya.
+
+..
+
+.. date: 2022-06-17-12-02-30
+.. gh-issue: 93858
+.. nonce: R49ARc
+.. section: Library
+
+Prevent error when activating venv in nested fish instances.
+
+..
+
+.. date: 2022-04-23-03-46-37
+.. gh-issue: 91078
+.. nonce: 87-hkp
+.. section: Library
+
+:meth:`TarFile.next` now returns ``None`` when called on an empty tarfile.
+
+..
+
+.. bpo: 47220
+.. date: 2022-04-04-22-54-11
+.. nonce: L9jYu4
+.. section: Library
+
+Document the optional *callback* parameter of :class:`WeakMethod`. Patch by
+Géry Ogam.
+
+..
+
+.. bpo: 46364
+.. date: 2022-01-14-10-49-20
+.. nonce: SzhlU9
+.. section: Library
+
+Restrict use of sockets instead of pipes for stdin of subprocesses created
+by :mod:`asyncio` to AIX platform only.
+
+..
+
+.. bpo: 38523
+.. date: 2020-10-23-22-20-52
+.. nonce: CrkxLh
+.. section: Library
+
+:func:`shutil.copytree` now applies the *ignore_dangling_symlinks* argument
+recursively.
+
+..
+
+.. bpo: 36267
+.. date: 2019-09-03-15-45-19
+.. nonce: z42Ex7
+.. section: Library
+
+Fix IndexError in :class:`argparse.ArgumentParser` when a ``store_true``
+action is given an explicit argument.
+
+..
+
+.. date: 2022-11-16-12-52-23
+.. gh-issue: 92892
+.. nonce: TS-P0j
+.. section: Documentation
+
+Document that calling variadic functions with ctypes requires special care
+on macOS/arm64 (and possibly other platforms).
+
+..
+
+.. date: 2022-10-16-17-34-45
+.. gh-issue: 85525
+.. nonce: DvkD0v
+.. section: Documentation
+
+Remove extra row
+
+..
+
+.. date: 2022-08-12-01-12-52
+.. gh-issue: 95588
+.. nonce: PA0FI7
+.. section: Documentation
+
+Clarified the conflicting advice given in the :mod:`ast` documentation about
+:func:`ast.literal_eval` being "safe" for use on untrusted input while at
+the same time warning that it can crash the process. The latter statement is
+true and is deemed unfixable without a large amount of work unsuitable for a
+bugfix. So we keep the warning and no longer claim that ``literal_eval`` is
+safe.
+
+..
+
+.. bpo: 41825
+.. date: 2020-09-22-12-32-16
+.. nonce: npcaCb
+.. section: Documentation
+
+Restructured the documentation for the :func:`os.wait* <os.wait>` family of
+functions, and improved the docs for :func:`os.waitid` with more explanation
+of the possible argument constants.
+
+..
+
+.. date: 2022-12-05-16-12-56
+.. gh-issue: 99892
+.. nonce: sz_eW8
+.. section: Tests
+
+Skip test_normalization() of test_unicodedata if it fails to download
+NormalizationTest.txt file from pythontest.net. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-12-01-18-55-18
+.. gh-issue: 99934
+.. nonce: Ox3Fqf
+.. section: Tests
+
+Correct test_marsh on (32 bit) x86: test_deterministic sets was failing.
+
+..
+
+.. date: 2022-11-21-19-21-30
+.. gh-issue: 99659
+.. nonce: 4gP0nm
+.. section: Tests
+
+Optional big memory tests in ``test_sqlite3`` now catch the correct
+:exc:`sqlite.DataError` exception type in case of too large strings and/or
+blobs passed.
+
+..
+
+.. date: 2022-10-26-15-19-20
+.. gh-issue: 98713
+.. nonce: Lnu32R
+.. section: Tests
+
+Fix a bug in the :mod:`typing` tests where a test relying on
+CPython-specific implementation details was not decorated with
+``@cpython_only`` and was not skipped on other implementations.
+
+..
+
+.. date: 2022-10-15-07-46-48
+.. gh-issue: 87390
+.. nonce: asR-Zo
+.. section: Tests
+
+Add tests for star-unpacking with PEP 646, and some other miscellaneous PEP
+646 tests.
+
+..
+
+.. date: 2022-10-12-14-57-06
+.. gh-issue: 96853
+.. nonce: ANe-bw
+.. section: Tests
+
+Added explicit coverage of ``Py_Initialize`` (and hence ``Py_InitializeEx``)
+back to the embedding tests (all other embedding tests migrated to
+``Py_InitializeFromConfig`` in Python 3.11)
+
+..
+
+.. bpo: 34272
+.. date: 2018-07-29-15-59-51
+.. nonce: lVX2uR
+.. section: Tests
+
+Some C API tests were moved into the new Lib/test/test_capi/ directory.
+
+..
+
+.. date: 2022-11-24-02-58-10
+.. gh-issue: 99086
+.. nonce: DV_4Br
+.. section: Build
+
+Fix ``-Wimplicit-int``, ``-Wstrict-prototypes``, and
+``-Wimplicit-function-declaration`` compiler warnings in
+:program:`configure` checks.
+
+..
+
+.. date: 2022-11-15-08-40-22
+.. gh-issue: 99337
+.. nonce: 5LoQDE
+.. section: Build
+
+Fix a compilation issue with GCC 12 on macOS.
+
+..
+
+.. date: 2022-11-04-02-58-10
+.. gh-issue: 99086
+.. nonce: DV_4Br
+.. section: Build
+
+Fix ``-Wimplicit-int`` compiler warning in :program:`configure` check for
+``PTHREAD_SCOPE_SYSTEM``.
+
+..
+
+.. date: 2022-11-03-08-10-49
+.. gh-issue: 98872
+.. nonce: gdsR8X
+.. section: Build
+
+Fix a possible fd leak in ``Programs/_freeze_module.c`` introduced in Python
+3.11.
+
+..
+
+.. date: 2022-11-02-19-25-07
+.. gh-issue: 99016
+.. nonce: R05NkD
+.. section: Build
+
+Fix build with ``PYTHON_FOR_REGEN=python3.8``.
+
+..
+
+.. date: 2022-11-02-18-45-35
+.. gh-issue: 97731
+.. nonce: zKpTlj
+.. section: Build
+
+Specify the full path to the source location for ``make docclean`` (needed
+for cross-builds).
+
+..
+
+.. date: 2022-10-26-12-37-52
+.. gh-issue: 98707
+.. nonce: eVXGEx
+.. section: Build
+
+Don't use vendored ``libmpdec`` headers if :option:`--with-system-libmpdec`
+is passed to :program:`configure`. Don't use vendored ``libexpat`` headers
+if :option:`--with-system-expat` is passed to :program:`!configure`.
+
+..
+
+.. date: 2022-09-20-12-43-44
+.. gh-issue: 96761
+.. nonce: IF29kR
+.. section: Build
+
+Fix the build process of clang compiler for :program:`_bootstrap_python` if
+LTO optimization is applied. Patch by Matthias Görgens and Dong-hee Na.
+
+..
+
+.. date: 2022-09-17-11-19-24
+.. gh-issue: 96883
+.. nonce: p_gr62
+.. section: Build
+
+``wasm32-emscripten`` builds for browsers now include
+:mod:`concurrent.futures` for :mod:`asyncio` and :mod:`unittest.mock`.
+
+..
+
+.. date: 2022-08-26-11-09-11
+.. gh-issue: 84461
+.. nonce: Nsdn_R
+.. section: Build
+
+``wasm32-emscripten`` platform no longer builds :mod:`resource` module,
+:func:`~os.getresuid`, :func:`~os.getresgid`, and their setters. The APIs
+are stubs and not functional.
+
+..
+
+.. date: 2022-06-25-23-25-47
+.. gh-issue: 94280
+.. nonce: YhEyW_
+.. section: Build
+
+Updated pegen regeneration script on Windows to find and use Python 3.9 or
+higher. Prior to this, pegen regeneration already required 3.9 or higher,
+but the script may have used lower versions of Python.
+
+..
+
+.. date: 2022-11-23-17-17-16
+.. gh-issue: 99345
+.. nonce: jOa3-f
+.. section: Windows
+
+Use faster initialization functions to detect install location for Windows
+Store package
+
+..
+
+.. date: 2022-11-21-19-50-18
+.. gh-issue: 98629
+.. nonce: tMmB_B
+.. section: Windows
+
+Fix initialization of :data:`sys.version` and ``sys._git`` on Windows
+
+..
+
+.. date: 2022-11-16-19-03-21
+.. gh-issue: 99442
+.. nonce: 6Dgk3Q
+.. section: Windows
+
+Fix handling in :ref:`launcher` when ``argv[0]`` does not include a file
+extension.
+
+..
+
+.. date: 2022-11-01-11-07-33
+.. gh-issue: 98689
+.. nonce: 0f6e_N
+.. section: Windows
+
+Update Windows builds to zlib v1.2.13. v1.2.12 has CVE-2022-37434, but the
+vulnerable ``inflateGetHeader`` API is not used by Python.
+
+..
+
+.. date: 2022-11-01-00-37-13
+.. gh-issue: 98790
+.. nonce: fpaPAx
+.. section: Windows
+
+Assumes that a missing ``DLLs`` directory means that standard extension
+modules are in the executable's directory.
+
+..
+
+.. date: 2022-10-27-20-30-16
+.. gh-issue: 98745
+.. nonce: v06p4r
+.. section: Windows
+
+Update :file:`py.exe` launcher to install 3.11 by default and 3.12 on
+request.
+
+..
+
+.. date: 2022-10-26-17-43-09
+.. gh-issue: 98692
+.. nonce: bOopfZ
+.. section: Windows
+
+Fix the :ref:`launcher` ignoring unrecognized shebang lines instead of
+treating them as local paths
+
+..
+
+.. date: 2022-10-25-10-34-17
+.. gh-issue: 94328
+.. nonce: 19NhdU
+.. section: Windows
+
+Update Windows installer to use SQLite 3.39.4.
+
+..
+
+.. date: 2022-10-02-11-59-23
+.. gh-issue: 97728
+.. nonce: dIdlPE
+.. section: Windows
+
+Fix possible crashes caused by the use of uninitialized variables when pass
+invalid arguments in :func:`os.system` on Windows and in Windows-specific
+modules (like ``winreg``).
+
+..
+
+.. date: 2022-09-23-15-40-04
+.. gh-issue: 96965
+.. nonce: CsnEGs
+.. section: Windows
+
+Update libffi to 3.4.3
+
+..
+
+.. date: 2022-08-30-12-01-51
+.. gh-issue: 94781
+.. nonce: OxO-Gr
+.. section: Windows
+
+Fix :file:`pcbuild.proj` to clean previous instances of ouput files in
+``Python\deepfreeze`` and ``Python\frozen_modules`` directories on Windows.
+Patch by Charlie Zhao.
+
+..
+
+.. bpo: 40882
+.. date: 2020-06-06-15-10-37
+.. nonce: UvNbdj
+.. section: Windows
+
+Fix a memory leak in :class:`multiprocessing.shared_memory.SharedMemory` on
+Windows.
+
+..
+
+.. date: 2022-11-25-09-23-20
+.. gh-issue: 87235
+.. nonce: SifjCD
+.. section: macOS
+
+On macOS ``python3 /dev/fd/9 9</path/to/script.py`` failed for any script
+longer than a couple of bytes.
+
+..
+
+.. date: 2022-11-01-10-32-23
+.. gh-issue: 98940
+.. nonce: W3YzC_
+.. section: macOS
+
+Fix ``Mac/Extras.install.py`` file filter bug.
+
+..
+
+.. date: 2022-10-25-10-32-23
+.. gh-issue: 94328
+.. nonce: W3YNC_
+.. section: macOS
+
+Update macOS installer to SQLite 3.39.4.
+
+..
+
+.. date: 2022-10-15-21-20-40
+.. gh-issue: 97527
+.. nonce: otAHJM
+.. section: IDLE
+
+Fix a bug in the previous bugfix that caused IDLE to not start when run with
+3.10.8, 3.12.0a1, and at least Microsoft Python 3.10.2288.0 installed
+without the Lib/test package. 3.11.0 was never affected.
+
+..
+
+.. date: 2022-08-29-17-25-13
+.. gh-issue: 95853
+.. nonce: Ce17cT
+.. section: Tools/Demos
+
+The ``wasm_build.py`` script now pre-builds Emscripten ports, checks for
+broken EMSDK versions, and warns about pkg-config env vars.
+
+..
+
+.. date: 2022-08-10-17-08-43
+.. gh-issue: 95853
+.. nonce: HCjC2m
+.. section: Tools/Demos
+
+The new tool ``Tools/wasm/wasm_builder.py`` automates configure, compile,
+and test steps for building CPython on WebAssembly platforms.
+
+..
+
+.. date: 2022-08-05-23-25-59
+.. gh-issue: 95731
+.. nonce: N2KohU
+.. section: Tools/Demos
+
+Fix handling of module docstrings in :file:`Tools/i18n/pygettext.py`.
+
+..
+
+.. date: 2022-12-05-17-30-13
+.. gh-issue: 98680
+.. nonce: FiMCxZ
+.. section: C API
+
+``PyBUF_*`` constants were marked as part of Limited API of Python 3.11+.
+These were available in 3.11.0 with :c:macro:`Py_LIMITED_API` defined for
+3.11, and are necessary to use the buffer API.
+
+..
+
+.. date: 2022-11-03-17-46-41
+.. gh-issue: 98978
+.. nonce: KJjBvv
+.. section: C API
+
+Fix use-after-free in ``Py_SetPythonHome(NULL)``,
+``Py_SetProgramName(NULL)`` and ``_Py_SetProgramFullPath(NULL)`` function
+calls. Issue reported by Benedikt Reinartz. Patch by Victor Stinner.
+
+..
+
+.. date: 2022-10-16-15-00-25
+.. gh-issue: 96853
+.. nonce: V0wiXP
+.. section: C API
+
+``Py_InitializeEx`` now correctly calls ``PyConfig_Clear`` after
+initializing the interpreter (the omission didn't cause a memory leak only
+because none of the dynamically allocated config fields are populated by the
+wrapper function)
--- /dev/null
+.. bpo: 25071
+.. date: 9305
+.. nonce: EwjXl1
+.. release date: 2015-09-13
+.. section: Build
+
+Windows installer should not require TargetDir parameter when installing
+quietly.
--- /dev/null
+.. bpo: 23285
+.. date: 8948
+.. nonce: bJJA8B
+.. release date: 2015-02-08
+.. section: Core and Builtins
+
+PEP 475 - EINTR handling.
+
+..
+
+.. bpo: 22735
+.. date: 8947
+.. nonce: mFEX9n
+.. section: Core and Builtins
+
+Fix many edge cases (including crashes) involving custom mro()
+implementations.
+
+..
+
+.. bpo: 22896
+.. date: 8946
+.. nonce: xSDAHK
+.. section: Core and Builtins
+
+Avoid using PyObject_AsCharBuffer(), PyObject_AsReadBuffer() and
+PyObject_AsWriteBuffer().
+
+..
+
+.. bpo: 21295
+.. date: 8945
+.. nonce: LYq9nF
+.. section: Core and Builtins
+
+Revert some changes (issue #16795) to AST line numbers and column offsets
+that constituted a regression.
+
+..
+
+.. bpo: 22986
+.. date: 8944
+.. nonce: yay2Lv
+.. section: Core and Builtins
+
+Allow changing an object's __class__ between a dynamic type and static type
+in some cases.
+
+..
+
+.. bpo: 15859
+.. date: 8943
+.. nonce: Fs5mE2
+.. section: Core and Builtins
+
+PyUnicode_EncodeFSDefault(), PyUnicode_EncodeMBCS() and
+PyUnicode_EncodeCodePage() now raise an exception if the object is not a
+Unicode object. For PyUnicode_EncodeFSDefault(), it was already the case on
+platforms other than Windows. Patch written by Campbell Barton.
+
+..
+
+.. bpo: 21408
+.. date: 8942
+.. nonce: Lz6P3P
+.. section: Core and Builtins
+
+The default __ne__() now returns NotImplemented if __eq__() returned
+NotImplemented. Original patch by Martin Panter.
+
+..
+
+.. bpo: 23321
+.. date: 8941
+.. nonce: HQelge
+.. section: Core and Builtins
+
+Fixed a crash in str.decode() when error handler returned replacement string
+longer than malformed input data.
+
+..
+
+.. bpo: 22286
+.. date: 8940
+.. nonce: l6Qyy1
+.. section: Core and Builtins
+
+The "backslashreplace" error handlers now works with decoding and
+translating.
+
+..
+
+.. bpo: 23253
+.. date: 8939
+.. nonce: p4B1H-
+.. section: Core and Builtins
+
+Delay-load ShellExecute[AW] in os.startfile for reduced startup overhead on
+Windows.
+
+..
+
+.. bpo: 22038
+.. date: 8938
+.. nonce: BMZUHx
+.. section: Core and Builtins
+
+pyatomic.h now uses stdatomic.h or GCC built-in functions for atomic memory
+access if available. Patch written by Vitor de Lima and Gustavo Temple.
+
+..
+
+.. bpo: 20284
+.. date: 8937
+.. nonce: CH8wpD
+.. section: Core and Builtins
+
+%-interpolation (aka printf) formatting added for bytes and bytearray.
+
+..
+
+.. bpo: 23048
+.. date: 8936
+.. nonce: X5BUd3
+.. section: Core and Builtins
+
+Fix jumping out of an infinite while loop in the pdb.
+
+..
+
+.. bpo: 20335
+.. date: 8935
+.. nonce: YcAPOs
+.. section: Core and Builtins
+
+bytes constructor now raises TypeError when encoding or errors is specified
+with non-string argument. Based on patch by Renaud Blanch.
+
+..
+
+.. bpo: 22834
+.. date: 8934
+.. nonce: N1kAXN
+.. section: Core and Builtins
+
+If the current working directory ends up being set to a non-existent
+directory then import will no longer raise FileNotFoundError.
+
+..
+
+.. bpo: 22869
+.. date: 8933
+.. nonce: rAWg-V
+.. section: Core and Builtins
+
+Move the interpreter startup & shutdown code to a new dedicated
+pylifecycle.c module
+
+..
+
+.. bpo: 22847
+.. date: 8932
+.. nonce: 6baj9f
+.. section: Core and Builtins
+
+Improve method cache efficiency.
+
+..
+
+.. bpo: 22335
+.. date: 8931
+.. nonce: DWsXiy
+.. section: Core and Builtins
+
+Fix crash when trying to enlarge a bytearray to 0x7fffffff bytes on a 32-bit
+platform.
+
+..
+
+.. bpo: 22653
+.. date: 8930
+.. nonce: pCNlpv
+.. section: Core and Builtins
+
+Fix an assertion failure in debug mode when doing a reentrant dict insertion
+in debug mode.
+
+..
+
+.. bpo: 22643
+.. date: 8929
+.. nonce: xv8xev
+.. section: Core and Builtins
+
+Fix integer overflow in Unicode case operations (upper, lower, title,
+swapcase, casefold).
+
+..
+
+.. bpo: 17636
+.. date: 8928
+.. nonce: wiqnhw
+.. section: Core and Builtins
+
+Circular imports involving relative imports are now supported.
+
+..
+
+.. bpo: 22604
+.. date: 8927
+.. nonce: yii-It
+.. section: Core and Builtins
+
+Fix assertion error in debug mode when dividing a complex number by
+(nan+0j).
+
+..
+
+.. bpo: 21052
+.. date: 8926
+.. nonce: -sf3tp
+.. section: Core and Builtins
+
+Do not raise ImportWarning when sys.path_hooks or sys.meta_path are set to
+None.
+
+..
+
+.. bpo: 16518
+.. date: 8925
+.. nonce: UADwcN
+.. section: Core and Builtins
+
+Use 'bytes-like object required' in error messages that previously used the
+far more cryptic "'x' does not support the buffer protocol.
+
+..
+
+.. bpo: 22470
+.. date: 8924
+.. nonce: igrgN2
+.. section: Core and Builtins
+
+Fixed integer overflow issues in "backslashreplace", "xmlcharrefreplace",
+and "surrogatepass" error handlers.
+
+..
+
+.. bpo: 22540
+.. date: 8923
+.. nonce: FM72m-
+.. section: Core and Builtins
+
+speed up `PyObject_IsInstance` and `PyObject_IsSubclass` in the common case
+that the second argument has metaclass `type`.
+
+..
+
+.. bpo: 18711
+.. date: 8922
+.. nonce: ds5wQa
+.. section: Core and Builtins
+
+Add a new `PyErr_FormatV` function, similar to `PyErr_Format` but accepting
+a `va_list` argument.
+
+..
+
+.. bpo: 22520
+.. date: 8921
+.. nonce: ZPJXSq
+.. section: Core and Builtins
+
+Fix overflow checking when generating the repr of a unicode object.
+
+..
+
+.. bpo: 22519
+.. date: 8920
+.. nonce: xvJVg0
+.. section: Core and Builtins
+
+Fix overflow checking in PyBytes_Repr.
+
+..
+
+.. bpo: 22518
+.. date: 8919
+.. nonce: C9T6ed
+.. section: Core and Builtins
+
+Fix integer overflow issues in latin-1 encoding.
+
+..
+
+.. bpo: 16324
+.. date: 8918
+.. nonce: YfrBNz
+.. section: Core and Builtins
+
+_charset parameter of MIMEText now also accepts email.charset.Charset
+instances. Initial patch by Claude Paroz.
+
+..
+
+.. bpo: 1764286
+.. date: 8917
+.. nonce: L4seL2
+.. section: Core and Builtins
+
+Fix inspect.getsource() to support decorated functions. Patch by Claudiu
+Popa.
+
+..
+
+.. bpo: 18554
+.. date: 8916
+.. nonce: hxnaui
+.. section: Core and Builtins
+
+os.__all__ includes posix functions.
+
+..
+
+.. bpo: 21391
+.. date: 8915
+.. nonce: 3jntPd
+.. section: Core and Builtins
+
+Use os.path.abspath in the shutil module.
+
+..
+
+.. bpo: 11471
+.. date: 8914
+.. nonce: Uu752F
+.. section: Core and Builtins
+
+avoid generating a JUMP_FORWARD instruction at the end of an if-block if
+there is no else-clause. Original patch by Eugene Toder.
+
+..
+
+.. bpo: 22215
+.. date: 8913
+.. nonce: IBFi6H
+.. section: Core and Builtins
+
+Now ValueError is raised instead of TypeError when str or bytes argument
+contains not permitted null character or byte.
+
+..
+
+.. bpo: 22258
+.. date: 8912
+.. nonce: 4FszMt
+.. section: Core and Builtins
+
+Fix the internal function set_inheritable() on Illumos. This platform
+exposes the function ``ioctl(FIOCLEX)``, but calling it fails with errno is
+ENOTTY: "Inappropriate ioctl for device". set_inheritable() now falls back
+to the slower ``fcntl()`` (``F_GETFD`` and then ``F_SETFD``).
+
+..
+
+.. bpo: 21389
+.. date: 8911
+.. nonce: dnWZBn
+.. section: Core and Builtins
+
+Displaying the __qualname__ of the underlying function in the repr of a
+bound method.
+
+..
+
+.. bpo: 22206
+.. date: 8910
+.. nonce: 0i_ihB
+.. section: Core and Builtins
+
+Using pthread, PyThread_create_key() now sets errno to ENOMEM and returns -1
+(error) on integer overflow.
+
+..
+
+.. bpo: 20184
+.. date: 8909
+.. nonce: bb3uHY
+.. section: Core and Builtins
+
+Argument Clinic based signature introspection added for 30 of the builtin
+functions.
+
+..
+
+.. bpo: 22116
+.. date: 8908
+.. nonce: auVmIt
+.. section: Core and Builtins
+
+C functions and methods (of the 'builtin_function_or_method' type) can now
+be weakref'ed. Patch by Wei Wu.
+
+..
+
+.. bpo: 22077
+.. date: 8907
+.. nonce: KZUDR-
+.. section: Core and Builtins
+
+Improve index error messages for bytearrays, bytes, lists, and tuples by
+adding 'or slices'. Added ', not <typename>' for bytearrays. Original patch
+by Claudiu Popa.
+
+..
+
+.. bpo: 20179
+.. date: 8906
+.. nonce: Nvhffc
+.. section: Core and Builtins
+
+Apply Argument Clinic to bytes and bytearray. Patch by Tal Einat.
+
+..
+
+.. bpo: 22082
+.. date: 8905
+.. nonce: 6X8Qmg
+.. section: Core and Builtins
+
+Clear interned strings in slotdefs.
+
+..
+
+.. bpo: 0
+.. date: 8904
+.. nonce: tuMnCc
+.. section: Core and Builtins
+
+Upgrade Unicode database to Unicode 7.0.0.
+
+..
+
+.. bpo: 21897
+.. date: 8903
+.. nonce: kiOGHe
+.. section: Core and Builtins
+
+Fix a crash with the f_locals attribute with closure variables when
+frame.clear() has been called.
+
+..
+
+.. bpo: 21205
+.. date: 8902
+.. nonce: wZsx1K
+.. section: Core and Builtins
+
+Add a new ``__qualname__`` attribute to generator, the qualified name, and
+use it in the representation of a generator (``repr(gen)``). The default
+name of the generator (``__name__`` attribute) is now get from the function
+instead of the code. Use ``gen.gi_code.co_name`` to get the name of the
+code.
+
+..
+
+.. bpo: 21669
+.. date: 8901
+.. nonce: DFDrBA
+.. section: Core and Builtins
+
+With the aid of heuristics in SyntaxError.__init__, the parser now attempts
+to generate more meaningful (or at least more search engine friendly) error
+messages when "exec" and "print" are used as statements.
+
+..
+
+.. bpo: 21642
+.. date: 8900
+.. nonce: -lWoKz
+.. section: Core and Builtins
+
+In the conditional if-else expression, allow an integer written with no
+space between itself and the ``else`` keyword (e.g. ``True if 42else
+False``) to be valid syntax.
+
+..
+
+.. bpo: 21523
+.. date: 8899
+.. nonce: f_PPYO
+.. section: Core and Builtins
+
+Fix over-pessimistic computation of the stack effect of some opcodes in the
+compiler. This also fixes a quadratic compilation time issue noticeable
+when compiling code with a large number of "and" and "or" operators.
+
+..
+
+.. bpo: 21418
+.. date: 8898
+.. nonce: z9jp1_
+.. section: Core and Builtins
+
+Fix a crash in the builtin function super() when called without argument and
+without current frame (ex: embedded Python).
+
+..
+
+.. bpo: 21425
+.. date: 8897
+.. nonce: i3Teb8
+.. section: Core and Builtins
+
+Fix flushing of standard streams in the interactive interpreter.
+
+..
+
+.. bpo: 21435
+.. date: 8896
+.. nonce: ZojVOT
+.. section: Core and Builtins
+
+In rare cases, when running finalizers on objects in cyclic trash a bad
+pointer dereference could occur due to a subtle flaw in internal iteration
+logic.
+
+..
+
+.. bpo: 21377
+.. date: 8895
+.. nonce: OawYfl
+.. section: Core and Builtins
+
+PyBytes_Concat() now tries to concatenate in-place when the first argument
+has a reference count of 1. Patch by Nikolaus Rath.
+
+..
+
+.. bpo: 20355
+.. date: 8894
+.. nonce: OrCNkZ
+.. section: Core and Builtins
+
+-W command line options now have higher priority than the PYTHONWARNINGS
+environment variable. Patch by Arfrever.
+
+..
+
+.. bpo: 21274
+.. date: 8893
+.. nonce: fVGfwq
+.. section: Core and Builtins
+
+Define PATH_MAX for GNU/Hurd in Python/pythonrun.c.
+
+..
+
+.. bpo: 20904
+.. date: 8892
+.. nonce: fAGdj2
+.. section: Core and Builtins
+
+Support setting FPU precision on m68k.
+
+..
+
+.. bpo: 21209
+.. date: 8891
+.. nonce: nMljFr
+.. section: Core and Builtins
+
+Fix sending tuples to custom generator objects with the yield from syntax.
+
+..
+
+.. bpo: 21193
+.. date: 8890
+.. nonce: Dg98Oo
+.. section: Core and Builtins
+
+pow(a, b, c) now raises ValueError rather than TypeError when b is negative.
+Patch by Josh Rosenberg.
+
+..
+
+.. bpo: 21176
+.. date: 8889
+.. nonce: mitDhW
+.. section: Core and Builtins
+
+PEP 465: Add the '@' operator for matrix multiplication.
+
+..
+
+.. bpo: 21134
+.. date: 8888
+.. nonce: ZL4SKo
+.. section: Core and Builtins
+
+Fix segfault when str is called on an uninitialized UnicodeEncodeError,
+UnicodeDecodeError, or UnicodeTranslateError object.
+
+..
+
+.. bpo: 19537
+.. date: 8887
+.. nonce: AkuC_J
+.. section: Core and Builtins
+
+Fix PyUnicode_DATA() alignment under m68k. Patch by Andreas Schwab.
+
+..
+
+.. bpo: 20929
+.. date: 8886
+.. nonce: 9NlUR7
+.. section: Core and Builtins
+
+Add a type cast to avoid shifting a negative number.
+
+..
+
+.. bpo: 20731
+.. date: 8885
+.. nonce: _03SZg
+.. section: Core and Builtins
+
+Properly position in source code files even if they are opened in text mode.
+Patch by Serhiy Storchaka.
+
+..
+
+.. bpo: 20637
+.. date: 8884
+.. nonce: ppYU0o
+.. section: Core and Builtins
+
+Key-sharing now also works for instance dictionaries of subclasses. Patch
+by Peter Ingebretson.
+
+..
+
+.. bpo: 8297
+.. date: 8883
+.. nonce: _XdGON
+.. section: Core and Builtins
+
+Attributes missing from modules now include the module name in the error
+text. Original patch by ysj.ray.
+
+..
+
+.. bpo: 19995
+.. date: 8882
+.. nonce: mnHEzX
+.. section: Core and Builtins
+
+%c, %o, %x, and %X now raise TypeError on non-integer input.
+
+..
+
+.. bpo: 19655
+.. date: 8881
+.. nonce: JgVdes
+.. section: Core and Builtins
+
+The ASDL parser - used by the build process to generate code for managing
+the Python AST in C - was rewritten. The new parser is self contained and
+does not require to carry long the spark.py parser-generator library;
+spark.py was removed from the source base.
+
+..
+
+.. bpo: 12546
+.. date: 8880
+.. nonce: 09naZ9
+.. section: Core and Builtins
+
+Allow ``\x00`` to be used as a fill character when using str, int, float,
+and complex __format__ methods.
+
+..
+
+.. bpo: 20480
+.. date: 8879
+.. nonce: TIYPLo
+.. section: Core and Builtins
+
+Add ipaddress.reverse_pointer. Patch by Leon Weber.
+
+..
+
+.. bpo: 13598
+.. date: 8878
+.. nonce: GJelrw
+.. section: Core and Builtins
+
+Modify string.Formatter to support auto-numbering of replacement fields. It
+now matches the behavior of str.format() in this regard. Patches by Phil
+Elson and Ramchandra Apte.
+
+..
+
+.. bpo: 8931
+.. date: 8877
+.. nonce: M05x4f
+.. section: Core and Builtins
+
+Make alternate formatting ('#') for type 'c' raise an exception. In versions
+prior to 3.5, '#' with 'c' had no effect. Now specifying it is an error.
+Patch by Torsten Landschoff.
+
+..
+
+.. bpo: 23165
+.. date: 8876
+.. nonce: lk8uCE
+.. section: Core and Builtins
+
+Perform overflow checks before allocating memory in the _Py_char2wchar
+function.
+
+..
+
+.. bpo: 23399
+.. date: 8875
+.. nonce: hXMYgA
+.. section: Library
+
+pyvenv creates relative symlinks where possible.
+
+..
+
+.. bpo: 20289
+.. date: 8874
+.. nonce: nio1N-
+.. section: Library
+
+cgi.FieldStorage() now supports the context management protocol.
+
+..
+
+.. bpo: 13128
+.. date: 8873
+.. nonce: vqEcsy
+.. section: Library
+
+Print response headers for CONNECT requests when debuglevel > 0. Patch by
+Demian Brecht.
+
+..
+
+.. bpo: 15381
+.. date: 8872
+.. nonce: Xv-wu8
+.. section: Library
+
+Optimized io.BytesIO to make less allocations and copyings.
+
+..
+
+.. bpo: 22818
+.. date: 8871
+.. nonce: NYdAc9
+.. section: Library
+
+Splitting on a pattern that could match an empty string now raises a
+warning. Patterns that can only match empty strings are now rejected.
+
+..
+
+.. bpo: 23099
+.. date: 8870
+.. nonce: ZASrUo
+.. section: Library
+
+Closing io.BytesIO with exported buffer is rejected now to prevent
+corrupting exported buffer.
+
+..
+
+.. bpo: 23326
+.. date: 8869
+.. nonce: 8VzlZD
+.. section: Library
+
+Removed __ne__ implementations. Since fixing default __ne__ implementation
+in issue #21408 they are redundant.
+
+..
+
+.. bpo: 23363
+.. date: 8868
+.. nonce: -koaol
+.. section: Library
+
+Fix possible overflow in itertools.permutations.
+
+..
+
+.. bpo: 23364
+.. date: 8867
+.. nonce: 3yBV-6
+.. section: Library
+
+Fix possible overflow in itertools.product.
+
+..
+
+.. bpo: 23366
+.. date: 8866
+.. nonce: tyAfm8
+.. section: Library
+
+Fixed possible integer overflow in itertools.combinations.
+
+..
+
+.. bpo: 23369
+.. date: 8865
+.. nonce: nqChyE
+.. section: Library
+
+Fixed possible integer overflow in _json.encode_basestring_ascii.
+
+..
+
+.. bpo: 23353
+.. date: 8864
+.. nonce: Iytkpc
+.. section: Library
+
+Fix the exception handling of generators in PyEval_EvalFrameEx(). At entry,
+save or swap the exception state even if PyEval_EvalFrameEx() is called with
+throwflag=0. At exit, the exception state is now always restored or swapped,
+not only if why is WHY_YIELD or WHY_RETURN. Patch co-written with Antoine
+Pitrou.
+
+..
+
+.. bpo: 14099
+.. date: 8863
+.. nonce: t9-HVE
+.. section: Library
+
+Restored support of writing ZIP files to tellable but non-seekable streams.
+
+..
+
+.. bpo: 14099
+.. date: 8862
+.. nonce: Myxxww
+.. section: Library
+
+Writing to ZipFile and reading multiple ZipExtFiles is threadsafe now.
+
+..
+
+.. bpo: 19361
+.. date: 8861
+.. nonce: 2mvrV3
+.. section: Library
+
+JSON decoder now raises JSONDecodeError instead of ValueError.
+
+..
+
+.. bpo: 18518
+.. date: 8860
+.. nonce: JXgicC
+.. section: Library
+
+timeit now rejects statements which can't be compiled outside a function or
+a loop (e.g. "return" or "break").
+
+..
+
+.. bpo: 23094
+.. date: 8859
+.. nonce: -8AXSi
+.. section: Library
+
+Fixed readline with frames in Python implementation of pickle.
+
+..
+
+.. bpo: 23268
+.. date: 8858
+.. nonce: ATtRa5
+.. section: Library
+
+Fixed bugs in the comparison of ipaddress classes.
+
+..
+
+.. bpo: 21408
+.. date: 8857
+.. nonce: 0rI6tx
+.. section: Library
+
+Removed incorrect implementations of __ne__() which didn't returned
+NotImplemented if __eq__() returned NotImplemented. The default __ne__()
+now works correctly.
+
+..
+
+.. bpo: 19996
+.. date: 8856
+.. nonce: 2-SiMf
+.. section: Library
+
+:class:`email.feedparser.FeedParser` now handles (malformed) headers with no
+key rather than assuming the body has started.
+
+..
+
+.. bpo: 20188
+.. date: 8855
+.. nonce: xocY-2
+.. section: Library
+
+Support Application-Layer Protocol Negotiation (ALPN) in the ssl module.
+
+..
+
+.. bpo: 23133
+.. date: 8854
+.. nonce: 8p2Wnl
+.. section: Library
+
+Pickling of ipaddress objects now produces more compact and portable
+representation.
+
+..
+
+.. bpo: 23248
+.. date: 8853
+.. nonce: FjcyCP
+.. section: Library
+
+Update ssl error codes from latest OpenSSL git master.
+
+..
+
+.. bpo: 23266
+.. date: 8852
+.. nonce: Mo7alR
+.. section: Library
+
+Much faster implementation of ipaddress.collapse_addresses() when there are
+many non-consecutive addresses.
+
+..
+
+.. bpo: 23098
+.. date: 8851
+.. nonce: 7VwF3K
+.. section: Library
+
+64-bit dev_t is now supported in the os module.
+
+..
+
+.. bpo: 21817
+.. date: 8850
+.. nonce: xYUW-9
+.. section: Library
+
+When an exception is raised in a task submitted to a ProcessPoolExecutor,
+the remote traceback is now displayed in the parent process. Patch by
+Claudiu Popa.
+
+..
+
+.. bpo: 15955
+.. date: 8849
+.. nonce: uvpBL4
+.. section: Library
+
+Add an option to limit output size when decompressing LZMA data. Patch by
+Nikolaus Rath and Martin Panter.
+
+..
+
+.. bpo: 23250
+.. date: 8848
+.. nonce: qNGAUf
+.. section: Library
+
+In the http.cookies module, capitalize "HttpOnly" and "Secure" as they are
+written in the standard.
+
+..
+
+.. bpo: 23063
+.. date: 8847
+.. nonce: 9-UJRs
+.. section: Library
+
+In the distutils' check command, fix parsing of reST with code or code-block
+directives.
+
+..
+
+.. bpo: 23209
+.. date: 8846
+.. nonce: I0bCCH
+.. section: Library
+
+selectors.BaseSelector.get_key() now raises a RuntimeError if the selector
+is closed. And selectors.BaseSelector.close() now clears its internal
+reference to the selector mapping to break a reference cycle. Initial patch
+written by Martin Richard. (See also: bpo-23225)
+
+..
+
+.. bpo: 17911
+.. date: 8845
+.. nonce: yg65Iu
+.. section: Library
+
+Provide a way to seed the linecache for a PEP-302 module without actually
+loading the code.
+
+..
+
+.. bpo: 17911
+.. date: 8844
+.. nonce: qeTePa
+.. section: Library
+
+Provide a new object API for traceback, including the ability to not lookup
+lines at all until the traceback is actually rendered, without any trace of
+the original objects being kept alive.
+
+..
+
+.. bpo: 19777
+.. date: 8843
+.. nonce: H_NDIA
+.. section: Library
+
+Provide a home() classmethod on Path objects. Contributed by Victor Salgado
+and Mayank Tripathi.
+
+..
+
+.. bpo: 23206
+.. date: 8842
+.. nonce: xSiYwq
+.. section: Library
+
+Make ``json.dumps(..., ensure_ascii=False)`` as fast as the default case of
+``ensure_ascii=True``. Patch by Naoki Inada.
+
+..
+
+.. bpo: 23185
+.. date: 8841
+.. nonce: KHyoSO
+.. section: Library
+
+Add math.inf and math.nan constants.
+
+..
+
+.. bpo: 23186
+.. date: 8840
+.. nonce: KzWLP2
+.. section: Library
+
+Add ssl.SSLObject.shared_ciphers() and ssl.SSLSocket.shared_ciphers() to
+fetch the client's list ciphers sent at handshake.
+
+..
+
+.. bpo: 23143
+.. date: 8839
+.. nonce: AWxJXV
+.. section: Library
+
+Remove compatibility with OpenSSLs older than 0.9.8.
+
+..
+
+.. bpo: 23132
+.. date: 8838
+.. nonce: pbQcut
+.. section: Library
+
+Improve performance and introspection support of comparison methods created
+by functool.total_ordering.
+
+..
+
+.. bpo: 19776
+.. date: 8837
+.. nonce: BxNgxd
+.. section: Library
+
+Add an expanduser() method on Path objects.
+
+..
+
+.. bpo: 23112
+.. date: 8836
+.. nonce: dZGf82
+.. section: Library
+
+Fix SimpleHTTPServer to correctly carry the query string and fragment when
+it redirects to add a trailing slash.
+
+..
+
+.. bpo: 21793
+.. date: 8835
+.. nonce: T1kQBL
+.. section: Library
+
+Added http.HTTPStatus enums (i.e. HTTPStatus.OK, HTTPStatus.NOT_FOUND).
+Patch by Demian Brecht.
+
+..
+
+.. bpo: 23093
+.. date: 8834
+.. nonce: cP7OqD
+.. section: Library
+
+In the io, module allow more operations to work on detached streams.
+
+..
+
+.. bpo: 23111
+.. date: 8833
+.. nonce: A34IA4
+.. section: Library
+
+In the ftplib, make ssl.PROTOCOL_SSLv23 the default protocol version.
+
+..
+
+.. bpo: 22585
+.. date: 8832
+.. nonce: F4BkNo
+.. section: Library
+
+On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(), instead of
+reading /dev/urandom, to get pseudo-random bytes.
+
+..
+
+.. bpo: 19104
+.. date: 8831
+.. nonce: _eIThy
+.. section: Library
+
+pprint now produces evaluable output for wrapped strings.
+
+..
+
+.. bpo: 23071
+.. date: 8830
+.. nonce: 3BSqF7
+.. section: Library
+
+Added missing names to codecs.__all__. Patch by Martin Panter.
+
+..
+
+.. bpo: 22783
+.. date: 8829
+.. nonce: OfYxBd
+.. section: Library
+
+Pickling now uses the NEWOBJ opcode instead of the NEWOBJ_EX opcode if
+possible.
+
+..
+
+.. bpo: 15513
+.. date: 8828
+.. nonce: 7yVnRE
+.. section: Library
+
+Added a __sizeof__ implementation for pickle classes.
+
+..
+
+.. bpo: 19858
+.. date: 8827
+.. nonce: cqOlIt
+.. section: Library
+
+pickletools.optimize() now aware of the MEMOIZE opcode, can produce more
+compact result and no longer produces invalid output if input data contains
+MEMOIZE opcodes together with PUT or BINPUT opcodes.
+
+..
+
+.. bpo: 22095
+.. date: 8826
+.. nonce: iISzxM
+.. section: Library
+
+Fixed HTTPConnection.set_tunnel with default port. The port value in the
+host header was set to "None". Patch by Demian Brecht.
+
+..
+
+.. bpo: 23016
+.. date: 8825
+.. nonce: LyrPd_
+.. section: Library
+
+A warning no longer produces an AttributeError when the program is run with
+pythonw.exe.
+
+..
+
+.. bpo: 21775
+.. date: 8824
+.. nonce: ELR_Al
+.. section: Library
+
+shutil.copytree(): fix crash when copying to VFAT. An exception handler
+assumed that OSError objects always have a 'winerror' attribute. That is not
+the case, so the exception handler itself raised AttributeError when run on
+Linux (and, presumably, any other non-Windows OS). Patch by Greg Ward.
+
+..
+
+.. bpo: 1218234
+.. date: 8823
+.. nonce: 4GcoQK
+.. section: Library
+
+Fix inspect.getsource() to load updated source of reloaded module. Initial
+patch by Berker Peksag.
+
+..
+
+.. bpo: 21740
+.. date: 8822
+.. nonce: TtAApO
+.. section: Library
+
+Support wrapped callables in doctest. Patch by Claudiu Popa.
+
+..
+
+.. bpo: 23009
+.. date: 8821
+.. nonce: -sW7gk
+.. section: Library
+
+Make sure selectors.EpollSelector.select() works when no FD is registered.
+
+..
+
+.. bpo: 22959
+.. date: 8820
+.. nonce: Vxt3EP
+.. section: Library
+
+In the constructor of http.client.HTTPSConnection, prefer the context's
+check_hostname attribute over the *check_hostname* parameter.
+
+..
+
+.. bpo: 22696
+.. date: 8819
+.. nonce: pvdcxs
+.. section: Library
+
+Add function :func:`sys.is_finalizing` to know about interpreter shutdown.
+
+..
+
+.. bpo: 16043
+.. date: 8818
+.. nonce: TGIC7t
+.. section: Library
+
+Add a default limit for the amount of data xmlrpclib.gzip_decode will
+return. This resolves CVE-2013-1753.
+
+..
+
+.. bpo: 14099
+.. date: 8817
+.. nonce: GJ5meQ
+.. section: Library
+
+ZipFile.open() no longer reopen the underlying file. Objects returned by
+ZipFile.open() can now operate independently of the ZipFile even if the
+ZipFile was created by passing in a file-like object as the first argument
+to the constructor.
+
+..
+
+.. bpo: 22966
+.. date: 8816
+.. nonce: zIxDrT
+.. section: Library
+
+Fix __pycache__ pyc file name clobber when pyc_compile is asked to compile a
+source file containing multiple dots in the source file name.
+
+..
+
+.. bpo: 21971
+.. date: 8815
+.. nonce: XlTc22
+.. section: Library
+
+Update turtledemo doc and add module to the index.
+
+..
+
+.. bpo: 21032
+.. date: 8814
+.. nonce: wxT_41
+.. section: Library
+
+Fixed socket leak if HTTPConnection.getresponse() fails. Original patch by
+Martin Panter.
+
+..
+
+.. bpo: 22407
+.. date: 8813
+.. nonce: CWi1wX
+.. section: Library
+
+Deprecated the use of re.LOCALE flag with str patterns or re.ASCII. It was
+newer worked.
+
+..
+
+.. bpo: 22902
+.. date: 8812
+.. nonce: ZqXriA
+.. section: Library
+
+The "ip" command is now used on Linux to determine MAC address in
+uuid.getnode(). Pach by Bruno Cauet.
+
+..
+
+.. bpo: 22960
+.. date: 8811
+.. nonce: 2VDILT
+.. section: Library
+
+Add a context argument to xmlrpclib.ServerProxy constructor.
+
+..
+
+.. bpo: 22389
+.. date: 8810
+.. nonce: 82DuwD
+.. section: Library
+
+Add contextlib.redirect_stderr().
+
+..
+
+.. bpo: 21356
+.. date: 8809
+.. nonce: 8NY75J
+.. section: Library
+
+Make ssl.RAND_egd() optional to support LibreSSL. The availability of the
+function is checked during the compilation. Patch written by Bernard Spil.
+
+..
+
+.. bpo: 22915
+.. date: 8808
+.. nonce: 709UAo
+.. section: Library
+
+SAX parser now supports files opened with file descriptor or bytes path.
+
+..
+
+.. bpo: 22609
+.. date: 8807
+.. nonce: mmLoeb
+.. section: Library
+
+Constructors and update methods of mapping classes in the collections module
+now accept the self keyword argument.
+
+..
+
+.. bpo: 22940
+.. date: 8806
+.. nonce: SP99Nf
+.. section: Library
+
+Add readline.append_history_file.
+
+..
+
+.. bpo: 19676
+.. date: 8805
+.. nonce: Wijwr8
+.. section: Library
+
+Added the "namereplace" error handler.
+
+..
+
+.. bpo: 22788
+.. date: 8804
+.. nonce: vofL9e
+.. section: Library
+
+Add *context* parameter to logging.handlers.HTTPHandler.
+
+..
+
+.. bpo: 22921
+.. date: 8803
+.. nonce: a4wx1C
+.. section: Library
+
+Allow SSLContext to take the *hostname* parameter even if OpenSSL doesn't
+support SNI.
+
+..
+
+.. bpo: 22894
+.. date: 8802
+.. nonce: 4AkwPA
+.. section: Library
+
+TestCase.subTest() would cause the test suite to be stopped when in failfast
+mode, even in the absence of failures.
+
+..
+
+.. bpo: 22796
+.. date: 8801
+.. nonce: _pFPFA
+.. section: Library
+
+HTTP cookie parsing is now stricter, in order to protect against potential
+injection attacks.
+
+..
+
+.. bpo: 22370
+.. date: 8800
+.. nonce: j4y21u
+.. section: Library
+
+Windows detection in pathlib is now more robust.
+
+..
+
+.. bpo: 22841
+.. date: 8799
+.. nonce: 8wpk7T
+.. section: Library
+
+Reject coroutines in asyncio add_signal_handler(). Patch by Ludovic.Gasc.
+
+..
+
+.. bpo: 19494
+.. date: 8798
+.. nonce: 7O5O8k
+.. section: Library
+
+Added urllib.request.HTTPBasicPriorAuthHandler. Patch by Matej Cepl.
+
+..
+
+.. bpo: 22578
+.. date: 8797
+.. nonce: 6XZ0Jf
+.. section: Library
+
+Added attributes to the re.error class.
+
+..
+
+.. bpo: 22849
+.. date: 8796
+.. nonce: AqBPyj
+.. section: Library
+
+Fix possible double free in the io.TextIOWrapper constructor.
+
+..
+
+.. bpo: 12728
+.. date: 8795
+.. nonce: rHZmXO
+.. section: Library
+
+Different Unicode characters having the same uppercase but different
+lowercase are now matched in case-insensitive regular expressions.
+
+..
+
+.. bpo: 22821
+.. date: 8794
+.. nonce: 30cQ-U
+.. section: Library
+
+Fixed fcntl() with integer argument on 64-bit big-endian platforms.
+
+..
+
+.. bpo: 21650
+.. date: 8793
+.. nonce: 62MLqr
+.. section: Library
+
+Add an `--sort-keys` option to json.tool CLI.
+
+..
+
+.. bpo: 22824
+.. date: 8792
+.. nonce: d5Txvr
+.. section: Library
+
+Updated reprlib output format for sets to use set literals. Patch
+contributed by Berker Peksag.
+
+..
+
+.. bpo: 22824
+.. date: 8791
+.. nonce: H_r9uH
+.. section: Library
+
+Updated reprlib output format for arrays to display empty arrays without an
+unnecessary empty list. Suggested by Serhiy Storchaka.
+
+..
+
+.. bpo: 22406
+.. date: 8790
+.. nonce: sPlVbI
+.. section: Library
+
+Fixed the uu_codec codec incorrectly ported to 3.x. Based on patch by Martin
+Panter.
+
+..
+
+.. bpo: 17293
+.. date: 8789
+.. nonce: Hk06bO
+.. section: Library
+
+uuid.getnode() now determines MAC address on AIX using netstat. Based on
+patch by Aivars Kalvāns.
+
+..
+
+.. bpo: 22769
+.. date: 8788
+.. nonce: PunnvQ
+.. section: Library
+
+Fixed ttk.Treeview.tag_has() when called without arguments.
+
+..
+
+.. bpo: 22417
+.. date: 8787
+.. nonce: To4b7U
+.. section: Library
+
+Verify certificates by default in httplib (PEP 476).
+
+..
+
+.. bpo: 22775
+.. date: 8786
+.. nonce: V5aCUz
+.. section: Library
+
+Fixed unpickling of http.cookies.SimpleCookie with protocol 2 and above.
+Patch by Tim Graham.
+
+..
+
+.. bpo: 22776
+.. date: 8785
+.. nonce: xNcRse
+.. section: Library
+
+Brought excluded code into the scope of a try block in SysLogHandler.emit().
+
+..
+
+.. bpo: 22665
+.. date: 8784
+.. nonce: j6Jlp8
+.. section: Library
+
+Add missing get_terminal_size and SameFileError to shutil.__all__.
+
+..
+
+.. bpo: 6623
+.. date: 8783
+.. nonce: 6LOidS
+.. section: Library
+
+Remove deprecated Netrc class in the ftplib module. Patch by Matt Chaput.
+
+..
+
+.. bpo: 17381
+.. date: 8782
+.. nonce: 4J5yv7
+.. section: Library
+
+Fixed handling of case-insensitive ranges in regular expressions.
+
+..
+
+.. bpo: 22410
+.. date: 8781
+.. nonce: 99YFdd
+.. section: Library
+
+Module level functions in the re module now cache compiled locale-dependent
+regular expressions taking into account the locale.
+
+..
+
+.. bpo: 22759
+.. date: 8780
+.. nonce: BJPdiL
+.. section: Library
+
+Query methods on pathlib.Path() (exists(), is_dir(), etc.) now return False
+when the underlying stat call raises NotADirectoryError.
+
+..
+
+.. bpo: 8876
+.. date: 8779
+.. nonce: A83Av4
+.. section: Library
+
+distutils now falls back to copying files when hard linking doesn't work.
+This allows use with special filesystems such as VirtualBox shared folders.
+
+..
+
+.. bpo: 22217
+.. date: 8778
+.. nonce: nXzGur
+.. section: Library
+
+Implemented reprs of classes in the zipfile module.
+
+..
+
+.. bpo: 22457
+.. date: 8777
+.. nonce: Xd2Mk-
+.. section: Library
+
+Honour load_tests in the start_dir of discovery.
+
+..
+
+.. bpo: 18216
+.. date: 8776
+.. nonce: trTZw4
+.. section: Library
+
+gettext now raises an error when a .mo file has an unsupported major version
+number. Patch by Aaron Hill.
+
+..
+
+.. bpo: 13918
+.. date: 8775
+.. nonce: -OnUhD
+.. section: Library
+
+Provide a locale.delocalize() function which can remove locale-specific
+number formatting from a string representing a number, without then
+converting it to a specific type. Patch by Cédric Krier.
+
+..
+
+.. bpo: 22676
+.. date: 8774
+.. nonce: d2v8QM
+.. section: Library
+
+Make the pickling of global objects which don't have a __module__ attribute
+less slow.
+
+..
+
+.. bpo: 18853
+.. date: 8773
+.. nonce: 76DrPD
+.. section: Library
+
+Fixed ResourceWarning in shlex.__nain__.
+
+..
+
+.. bpo: 9351
+.. date: 8772
+.. nonce: u5UI-6
+.. section: Library
+
+Defaults set with set_defaults on an argparse subparser are no longer
+ignored when also set on the parent parser.
+
+..
+
+.. bpo: 7559
+.. date: 8771
+.. nonce: QG35ZP
+.. section: Library
+
+unittest test loading ImportErrors are reported as import errors with their
+import exception rather than as attribute errors after the import has
+already failed.
+
+..
+
+.. bpo: 19746
+.. date: 8770
+.. nonce: S1dg1K
+.. section: Library
+
+Make it possible to examine the errors from unittest discovery without
+executing the test suite. The new `errors` attribute on TestLoader exposes
+these non-fatal errors encountered during discovery.
+
+..
+
+.. bpo: 21991
+.. date: 8769
+.. nonce: Mkm0IN
+.. section: Library
+
+Make email.headerregistry's header 'params' attributes be read-only
+(MappingProxyType). Previously the dictionary was modifiable but a new one
+was created on each access of the attribute.
+
+..
+
+.. bpo: 22638
+.. date: 8768
+.. nonce: Ur73gJ
+.. section: Library
+
+SSLv3 is now disabled throughout the standard library. It can still be
+enabled by instantiating a SSLContext manually.
+
+..
+
+.. bpo: 22641
+.. date: 8767
+.. nonce: m0ldtl
+.. section: Library
+
+In asyncio, the default SSL context for client connections is now created
+using ssl.create_default_context(), for stronger security.
+
+..
+
+.. bpo: 17401
+.. date: 8766
+.. nonce: SZd19P
+.. section: Library
+
+Include closefd in io.FileIO repr.
+
+..
+
+.. bpo: 21338
+.. date: 8765
+.. nonce: evDyHD
+.. section: Library
+
+Add silent mode for compileall. quiet parameters of compile_{dir, file,
+path} functions now have a multilevel value. Also, -q option of the CLI now
+have a multilevel value. Patch by Thomas Kluyver.
+
+..
+
+.. bpo: 20152
+.. date: 8764
+.. nonce: 9_o92A
+.. section: Library
+
+Convert the array and cmath modules to Argument Clinic.
+
+..
+
+.. bpo: 18643
+.. date: 8763
+.. nonce: 6Qdc0J
+.. section: Library
+
+Add socket.socketpair() on Windows.
+
+..
+
+.. bpo: 22435
+.. date: 8762
+.. nonce: s2U7Zm
+.. section: Library
+
+Fix a file descriptor leak when socketserver bind fails.
+
+..
+
+.. bpo: 13096
+.. date: 8761
+.. nonce: rsailB
+.. section: Library
+
+Fixed segfault in CTypes POINTER handling of large values.
+
+..
+
+.. bpo: 11694
+.. date: 8760
+.. nonce: JuDrch
+.. section: Library
+
+Raise ConversionError in xdrlib as documented. Patch by Filip Gruszczyński
+and Claudiu Popa.
+
+..
+
+.. bpo: 19380
+.. date: 8759
+.. nonce: nqgoRQ
+.. section: Library
+
+Optimized parsing of regular expressions.
+
+..
+
+.. bpo: 1519638
+.. date: 8758
+.. nonce: 2pbuog
+.. section: Library
+
+Now unmatched groups are replaced with empty strings in re.sub() and
+re.subn().
+
+..
+
+.. bpo: 18615
+.. date: 8757
+.. nonce: 65TxnY
+.. section: Library
+
+sndhdr.what/whathdr now return a namedtuple.
+
+..
+
+.. bpo: 22462
+.. date: 8756
+.. nonce: 1h4Kpr
+.. section: Library
+
+Fix pyexpat's creation of a dummy frame to make it appear in exception
+tracebacks.
+
+..
+
+.. bpo: 21965
+.. date: 8755
+.. nonce: n_jnXs
+.. section: Library
+
+Add support for in-memory SSL to the ssl module. Patch by Geert Jansen.
+
+..
+
+.. bpo: 21173
+.. date: 8754
+.. nonce: egkbEx
+.. section: Library
+
+Fix len() on a WeakKeyDictionary when .clear() was called with an iterator
+alive.
+
+..
+
+.. bpo: 11866
+.. date: 8753
+.. nonce: xrvbIC
+.. section: Library
+
+Eliminated race condition in the computation of names for new threads.
+
+..
+
+.. bpo: 21905
+.. date: 8752
+.. nonce: coKyRo
+.. section: Library
+
+Avoid RuntimeError in pickle.whichmodule() when sys.modules is mutated while
+iterating. Patch by Olivier Grisel.
+
+..
+
+.. bpo: 11271
+.. date: 8751
+.. nonce: ZYiJru
+.. section: Library
+
+concurrent.futures.Executor.map() now takes a *chunksize* argument to allow
+batching of tasks in child processes and improve performance of
+ProcessPoolExecutor. Patch by Dan O'Reilly.
+
+..
+
+.. bpo: 21883
+.. date: 8750
+.. nonce: qpuQu6
+.. section: Library
+
+os.path.join() and os.path.relpath() now raise a TypeError with more helpful
+error message for unsupported or mismatched types of arguments.
+
+..
+
+.. bpo: 22219
+.. date: 8749
+.. nonce: l9Enh9
+.. section: Library
+
+The zipfile module CLI now adds entries for directories (including empty
+directories) in ZIP file.
+
+..
+
+.. bpo: 22449
+.. date: 8748
+.. nonce: nFW_Fl
+.. section: Library
+
+In the ssl.SSLContext.load_default_certs, consult the environmental
+variables SSL_CERT_DIR and SSL_CERT_FILE on Windows.
+
+..
+
+.. bpo: 22508
+.. date: 8747
+.. nonce: 2LbnGQ
+.. section: Library
+
+The email.__version__ variable has been removed; the email code is no longer
+shipped separately from the stdlib, and __version__ hasn't been updated in
+several releases.
+
+..
+
+.. bpo: 20076
+.. date: 8746
+.. nonce: -7OIVB
+.. section: Library
+
+Added non derived UTF-8 aliases to locale aliases table.
+
+..
+
+.. bpo: 20079
+.. date: 8745
+.. nonce: qM949O
+.. section: Library
+
+Added locales supported in glibc 2.18 to locale alias table.
+
+..
+
+.. bpo: 20218
+.. date: 8744
+.. nonce: CMgOyE
+.. section: Library
+
+Added convenience methods read_text/write_text and read_bytes/ write_bytes
+to pathlib.Path objects.
+
+..
+
+.. bpo: 22396
+.. date: 8743
+.. nonce: cQSizA
+.. section: Library
+
+On 32-bit AIX platform, don't expose os.posix_fadvise() nor
+os.posix_fallocate() because their prototypes in system headers are wrong.
+
+..
+
+.. bpo: 22517
+.. date: 8742
+.. nonce: qT6-aB
+.. section: Library
+
+When an io.BufferedRWPair object is deallocated, clear its weakrefs.
+
+..
+
+.. bpo: 22437
+.. date: 8741
+.. nonce: MRVnmQ
+.. section: Library
+
+Number of capturing groups in regular expression is no longer limited by
+100.
+
+..
+
+.. bpo: 17442
+.. date: 8740
+.. nonce: rnc87D
+.. section: Library
+
+InteractiveInterpreter now displays the full chained traceback in its
+showtraceback method, to match the built in interactive interpreter.
+
+..
+
+.. bpo: 23392
+.. date: 8739
+.. nonce: Pe7_WK
+.. section: Library
+
+Added tests for marshal C API that works with FILE*.
+
+..
+
+.. bpo: 10510
+.. date: 8738
+.. nonce: N-ntcD
+.. section: Library
+
+distutils register and upload methods now use HTML standards compliant CRLF
+line endings.
+
+..
+
+.. bpo: 9850
+.. date: 8737
+.. nonce: D-UnVi
+.. section: Library
+
+Fixed macpath.join() for empty first component. Patch by Oleg Oshmyan.
+
+..
+
+.. bpo: 5309
+.. date: 8736
+.. nonce: pVMmQ8
+.. section: Library
+
+distutils' build and build_ext commands now accept a ``-j`` option to enable
+parallel building of extension modules.
+
+..
+
+.. bpo: 22448
+.. date: 8735
+.. nonce: fAapvE
+.. section: Library
+
+Improve canceled timer handles cleanup to prevent unbound memory usage.
+Patch by Joshua Moore-Oliva.
+
+..
+
+.. bpo: 22427
+.. date: 8734
+.. nonce: TZ5S_u
+.. section: Library
+
+TemporaryDirectory no longer attempts to clean up twice when used in the
+with statement in generator.
+
+..
+
+.. bpo: 22362
+.. date: 8733
+.. nonce: xIBThN
+.. section: Library
+
+Forbidden ambiguous octal escapes out of range 0-0o377 in regular
+expressions.
+
+..
+
+.. bpo: 20912
+.. date: 8732
+.. nonce: cAq3mZ
+.. section: Library
+
+Now directories added to ZIP file have correct Unix and MS-DOS directory
+attributes.
+
+..
+
+.. bpo: 21866
+.. date: 8731
+.. nonce: hSc4wM
+.. section: Library
+
+ZipFile.close() no longer writes ZIP64 central directory records if
+allowZip64 is false.
+
+..
+
+.. bpo: 22278
+.. date: 8730
+.. nonce: abqBXZ
+.. section: Library
+
+Fix urljoin problem with relative urls, a regression observed after changes
+to issue22118 were submitted.
+
+..
+
+.. bpo: 22415
+.. date: 8729
+.. nonce: xJLAvI
+.. section: Library
+
+Fixed debugging output of the GROUPREF_EXISTS opcode in the re module.
+Removed trailing spaces in debugging output.
+
+..
+
+.. bpo: 22423
+.. date: 8728
+.. nonce: Rtb4oT
+.. section: Library
+
+Unhandled exception in thread no longer causes unhandled AttributeError when
+sys.stderr is None.
+
+..
+
+.. bpo: 21332
+.. date: 8727
+.. nonce: Gwxwlr
+.. section: Library
+
+Ensure that ``bufsize=1`` in subprocess.Popen() selects line buffering,
+rather than block buffering. Patch by Akira Li.
+
+..
+
+.. bpo: 21091
+.. date: 8726
+.. nonce: M5hAtT
+.. section: Library
+
+Fix API bug: email.message.EmailMessage.is_attachment is now a method.
+
+..
+
+.. bpo: 21079
+.. date: 8725
+.. nonce: czVcL8
+.. section: Library
+
+Fix email.message.EmailMessage.is_attachment to return the correct result
+when the header has parameters as well as a value.
+
+..
+
+.. bpo: 22247
+.. date: 8724
+.. nonce: sGIpR3
+.. section: Library
+
+Add NNTPError to nntplib.__all__.
+
+..
+
+.. bpo: 22366
+.. date: 8723
+.. nonce: Dd1eFj
+.. section: Library
+
+urllib.request.urlopen will accept a context object (SSLContext) as an
+argument which will then be used for HTTPS connection. Patch by Alex Gaynor.
+
+..
+
+.. bpo: 4180
+.. date: 8722
+.. nonce: QBx0JK
+.. section: Library
+
+The warnings registries are now reset when the filters are modified.
+
+..
+
+.. bpo: 22419
+.. date: 8721
+.. nonce: FqH4aC
+.. section: Library
+
+Limit the length of incoming HTTP request in wsgiref server to 65536 bytes
+and send a 414 error code for higher lengths. Patch contributed by Devin
+Cook.
+
+..
+
+.. bpo: 0
+.. date: 8720
+.. nonce: y7r3O2
+.. section: Library
+
+Lax cookie parsing in http.cookies could be a security issue when combined
+with non-standard cookie handling in some web browsers. Reported by Sergey
+Bobrov.
+
+..
+
+.. bpo: 20537
+.. date: 8719
+.. nonce: E0CE54
+.. section: Library
+
+logging methods now accept an exception instance as well as a Boolean value
+or exception tuple. Thanks to Yury Selivanov for the patch.
+
+..
+
+.. bpo: 22384
+.. date: 8718
+.. nonce: -Nl4He
+.. section: Library
+
+An exception in Tkinter callback no longer crashes the program when it is
+run with pythonw.exe.
+
+..
+
+.. bpo: 22168
+.. date: 8717
+.. nonce: vLeKWC
+.. section: Library
+
+Prevent turtle AttributeError with non-default Canvas on OS X.
+
+..
+
+.. bpo: 21147
+.. date: 8716
+.. nonce: w9DE17
+.. section: Library
+
+sqlite3 now raises an exception if the request contains a null character
+instead of truncating it. Based on patch by Victor Stinner.
+
+..
+
+.. bpo: 13968
+.. date: 8715
+.. nonce: 1okGqm
+.. section: Library
+
+The glob module now supports recursive search in subdirectories using the
+``**`` pattern.
+
+..
+
+.. bpo: 21951
+.. date: 8714
+.. nonce: 3vS4LK
+.. section: Library
+
+Fixed a crash in Tkinter on AIX when called Tcl command with empty string or
+tuple argument.
+
+..
+
+.. bpo: 21951
+.. date: 8713
+.. nonce: _CCC4v
+.. section: Library
+
+Tkinter now most likely raises MemoryError instead of crash if the memory
+allocation fails.
+
+..
+
+.. bpo: 22338
+.. date: 8712
+.. nonce: rKlCMz
+.. section: Library
+
+Fix a crash in the json module on memory allocation failure.
+
+..
+
+.. bpo: 12410
+.. date: 8711
+.. nonce: oFf-cB
+.. section: Library
+
+imaplib.IMAP4 now supports the context management protocol. Original patch
+by Tarek Ziadé.
+
+..
+
+.. bpo: 21270
+.. date: 8710
+.. nonce: qMBaY-
+.. section: Library
+
+We now override tuple methods in mock.call objects so that they can be used
+as normal call attributes.
+
+..
+
+.. bpo: 16662
+.. date: 8709
+.. nonce: Nghn-Y
+.. section: Library
+
+load_tests() is now unconditionally run when it is present in a package's
+__init__.py. TestLoader.loadTestsFromModule() still accepts use_load_tests,
+but it is deprecated and ignored. A new keyword-only attribute `pattern` is
+added and documented. Patch given by Robert Collins, tweaked by Barry
+Warsaw.
+
+..
+
+.. bpo: 22226
+.. date: 8708
+.. nonce: T1ZMPY
+.. section: Library
+
+First letter no longer is stripped from the "status" key in the result of
+Treeview.heading().
+
+..
+
+.. bpo: 19524
+.. date: 8707
+.. nonce: EQJjlF
+.. section: Library
+
+Fixed resource leak in the HTTP connection when an invalid response is
+received. Patch by Martin Panter.
+
+..
+
+.. bpo: 20421
+.. date: 8706
+.. nonce: iR0S1s
+.. section: Library
+
+Add a .version() method to SSL sockets exposing the actual protocol version
+in use.
+
+..
+
+.. bpo: 19546
+.. date: 8705
+.. nonce: 8VdYBK
+.. section: Library
+
+configparser exceptions no longer expose implementation details. Chained
+KeyErrors are removed, which leads to cleaner tracebacks. Patch by Claudiu
+Popa.
+
+..
+
+.. bpo: 22051
+.. date: 8704
+.. nonce: cUjFqL
+.. section: Library
+
+turtledemo no longer reloads examples to re-run them. Initialization of
+variables and gui setup should be done in main(), which is called each time
+a demo is run, but not on import.
+
+..
+
+.. bpo: 21933
+.. date: 8703
+.. nonce: IhMjN1
+.. section: Library
+
+Turtledemo users can change the code font size with a menu selection or
+control(command) '-' or '+' or control-mousewheel. Original patch by Lita
+Cho.
+
+..
+
+.. bpo: 21597
+.. date: 8702
+.. nonce: aPTCWJ
+.. section: Library
+
+The separator between the turtledemo text pane and the drawing canvas can
+now be grabbed and dragged with a mouse. The code text pane can be widened
+to easily view or copy the full width of the text. The canvas can be
+widened on small screens. Original patches by Jan Kanis and Lita Cho.
+
+..
+
+.. bpo: 18132
+.. date: 8701
+.. nonce: 2R2nwM
+.. section: Library
+
+Turtledemo buttons no longer disappear when the window is shrunk. Original
+patches by Jan Kanis and Lita Cho.
+
+..
+
+.. bpo: 22043
+.. date: 8700
+.. nonce: Q6RvGL
+.. section: Library
+
+time.monotonic() is now always available. ``threading.Lock.acquire()``,
+``threading.RLock.acquire()`` and socket operations now use a monotonic
+clock, instead of the system clock, when a timeout is used.
+
+..
+
+.. bpo: 21527
+.. date: 8699
+.. nonce: N5WPxr
+.. section: Library
+
+Add a default number of workers to ThreadPoolExecutor equal to 5 times the
+number of CPUs. Patch by Claudiu Popa.
+
+..
+
+.. bpo: 22216
+.. date: 8698
+.. nonce: Cmalu6
+.. section: Library
+
+smtplib now resets its state more completely after a quit. The most obvious
+consequence of the previous behavior was a STARTTLS failure during a
+connect/starttls/quit/connect/starttls sequence.
+
+..
+
+.. bpo: 22098
+.. date: 8697
+.. nonce: 5JYiQN
+.. section: Library
+
+ctypes' BigEndianStructure and LittleEndianStructure now define an empty
+__slots__ so that subclasses don't always get an instance dict. Patch by
+Claudiu Popa.
+
+..
+
+.. bpo: 22185
+.. date: 8696
+.. nonce: 1SCCIK
+.. section: Library
+
+Fix an occasional RuntimeError in threading.Condition.wait() caused by
+mutation of the waiters queue without holding the lock. Patch by Doug
+Zongker.
+
+..
+
+.. bpo: 22287
+.. date: 8695
+.. nonce: awH2AI
+.. section: Library
+
+On UNIX, _PyTime_gettimeofday() now uses clock_gettime(CLOCK_REALTIME) if
+available. As a side effect, Python now depends on the librt library on
+Solaris and on Linux (only with glibc older than 2.17).
+
+..
+
+.. bpo: 22182
+.. date: 8694
+.. nonce: 5EG1Bc
+.. section: Library
+
+Use e.args to unpack exceptions correctly in distutils.file_util.move_file.
+Patch by Claudiu Popa.
+
+..
+
+.. bpo: 0
+.. date: 8693
+.. nonce: zBfe8J
+.. section: Library
+
+The webbrowser module now uses subprocess's start_new_session=True rather
+than a potentially risky preexec_fn=os.setsid call.
+
+..
+
+.. bpo: 22042
+.. date: 8692
+.. nonce: WZvb8s
+.. section: Library
+
+signal.set_wakeup_fd(fd) now raises an exception if the file descriptor is
+in blocking mode.
+
+..
+
+.. bpo: 16808
+.. date: 8691
+.. nonce: kPy_5U
+.. section: Library
+
+inspect.stack() now returns a named tuple instead of a tuple. Patch by
+Daniel Shahaf.
+
+..
+
+.. bpo: 22236
+.. date: 8690
+.. nonce: 1utXkg
+.. section: Library
+
+Fixed Tkinter images copying operations in NoDefaultRoot mode.
+
+..
+
+.. bpo: 2527
+.. date: 8689
+.. nonce: fR2GS6
+.. section: Library
+
+Add a *globals* argument to timeit functions, in order to override the
+globals namespace in which the timed code is executed. Patch by Ben Roberts.
+
+..
+
+.. bpo: 22118
+.. date: 8688
+.. nonce: 3gdkOF
+.. section: Library
+
+Switch urllib.parse to use RFC 3986 semantics for the resolution of relative
+URLs, rather than RFCs 1808 and 2396. Patch by Demian Brecht.
+
+..
+
+.. bpo: 21549
+.. date: 8687
+.. nonce: i1LVvg
+.. section: Library
+
+Added the "members" parameter to TarFile.list().
+
+..
+
+.. bpo: 19628
+.. date: 8686
+.. nonce: ssQVP8
+.. section: Library
+
+Allow compileall recursion depth to be specified with a -r option.
+
+..
+
+.. bpo: 15696
+.. date: 8685
+.. nonce: PTwXYJ
+.. section: Library
+
+Add a __sizeof__ implementation for mmap objects on Windows.
+
+..
+
+.. bpo: 22068
+.. date: 8684
+.. nonce: wCdaW0
+.. section: Library
+
+Avoided reference loops with Variables and Fonts in Tkinter.
+
+..
+
+.. bpo: 22165
+.. date: 8683
+.. nonce: J1np4o
+.. section: Library
+
+SimpleHTTPRequestHandler now supports undecodable file names.
+
+..
+
+.. bpo: 15381
+.. date: 8682
+.. nonce: Ia8pf6
+.. section: Library
+
+Optimized line reading in io.BytesIO.
+
+..
+
+.. bpo: 8797
+.. date: 8681
+.. nonce: aJcIPu
+.. section: Library
+
+Raise HTTPError on failed Basic Authentication immediately. Initial patch by
+Sam Bull.
+
+..
+
+.. bpo: 20729
+.. date: 8680
+.. nonce: I-1Lap
+.. section: Library
+
+Restored the use of lazy iterkeys()/itervalues()/iteritems() in the mailbox
+module.
+
+..
+
+.. bpo: 21448
+.. date: 8679
+.. nonce: THJSYB
+.. section: Library
+
+Changed FeedParser feed() to avoid O(N\ :sup:`2`) behavior when parsing long line.
+Original patch by Raymond Hettinger.
+
+..
+
+.. bpo: 22184
+.. date: 8678
+.. nonce: UCbSOt
+.. section: Library
+
+The functools LRU Cache decorator factory now gives an earlier and clearer
+error message when the user forgets the required parameters.
+
+..
+
+.. bpo: 17923
+.. date: 8677
+.. nonce: YI_QjG
+.. section: Library
+
+glob() patterns ending with a slash no longer match non-dirs on AIX. Based
+on patch by Delhallt.
+
+..
+
+.. bpo: 21725
+.. date: 8676
+.. nonce: eIu-2N
+.. section: Library
+
+Added support for RFC 6531 (SMTPUTF8) in smtpd.
+
+..
+
+.. bpo: 22176
+.. date: 8675
+.. nonce: rgbRyg
+.. section: Library
+
+Update the ctypes module's libffi to v3.1. This release adds support for
+the Linux AArch64 and POWERPC ELF ABIv2 little endian architectures.
+
+..
+
+.. bpo: 5411
+.. date: 8674
+.. nonce: 5Utapn
+.. section: Library
+
+Added support for the "xztar" format in the shutil module.
+
+..
+
+.. bpo: 21121
+.. date: 8673
+.. nonce: ZLsRil
+.. section: Library
+
+Don't force 3rd party C extensions to be built with
+-Werror=declaration-after-statement.
+
+..
+
+.. bpo: 21975
+.. date: 8672
+.. nonce: MI8ntO
+.. section: Library
+
+Fixed crash when using uninitialized sqlite3.Row (in particular when
+unpickling pickled sqlite3.Row). sqlite3.Row is now initialized in the
+__new__() method.
+
+..
+
+.. bpo: 20170
+.. date: 8671
+.. nonce: 8QfhN7
+.. section: Library
+
+Convert posixmodule to use Argument Clinic.
+
+..
+
+.. bpo: 21539
+.. date: 8670
+.. nonce: YccmZF
+.. section: Library
+
+Add an *exists_ok* argument to `Pathlib.mkdir()` to mimic `mkdir -p` and
+`os.makedirs()` functionality. When true, ignore FileExistsErrors. Patch
+by Berker Peksag.
+
+..
+
+.. bpo: 22127
+.. date: 8669
+.. nonce: 0l2OO5
+.. section: Library
+
+Bypass IDNA for pure-ASCII host names in the socket module (in particular
+for numeric IPs).
+
+..
+
+.. bpo: 21047
+.. date: 8668
+.. nonce: XfUQG3
+.. section: Library
+
+set the default value for the *convert_charrefs* argument of HTMLParser to
+True. Patch by Berker Peksag.
+
+..
+
+.. bpo: 0
+.. date: 8667
+.. nonce: 56bAnQ
+.. section: Library
+
+Add an __all__ to html.entities.
+
+..
+
+.. bpo: 15114
+.. date: 8666
+.. nonce: jXwseC
+.. section: Library
+
+the strict mode and argument of HTMLParser, HTMLParser.error, and the
+HTMLParserError exception have been removed.
+
+..
+
+.. bpo: 22085
+.. date: 8665
+.. nonce: 3JM_Aw
+.. section: Library
+
+Dropped support of Tk 8.3 in Tkinter.
+
+..
+
+.. bpo: 21580
+.. date: 8664
+.. nonce: 3ssycS
+.. section: Library
+
+Now Tkinter correctly handles bytes arguments passed to Tk. In particular
+this allows initializing images from binary data.
+
+..
+
+.. bpo: 22003
+.. date: 8663
+.. nonce: 4ZIDS1
+.. section: Library
+
+When initialized from a bytes object, io.BytesIO() now defers making a copy
+until it is mutated, improving performance and memory use on some use cases.
+Patch by David Wilson.
+
+..
+
+.. bpo: 22018
+.. date: 8662
+.. nonce: 6ApxSH
+.. section: Library
+
+On Windows, signal.set_wakeup_fd() now also supports sockets. A side effect
+is that Python depends to the WinSock library.
+
+..
+
+.. bpo: 22054
+.. date: 8661
+.. nonce: zp6Svw
+.. section: Library
+
+Add os.get_blocking() and os.set_blocking() functions to get and set the
+blocking mode of a file descriptor (False if the O_NONBLOCK flag is set,
+True otherwise). These functions are not available on Windows.
+
+..
+
+.. bpo: 17172
+.. date: 8660
+.. nonce: R_LI_2
+.. section: Library
+
+Make turtledemo start as active on OS X even when run with subprocess.
+Patch by Lita Cho.
+
+..
+
+.. bpo: 21704
+.. date: 8659
+.. nonce: gL3ikj
+.. section: Library
+
+Fix build error for _multiprocessing when semaphores are not available.
+Patch by Arfrever Frehtes Taifersar Arahesis.
+
+..
+
+.. bpo: 20173
+.. date: 8658
+.. nonce: FAL-4L
+.. section: Library
+
+Convert sha1, sha256, sha512 and md5 to ArgumentClinic. Patch by Vajrasky
+Kok.
+
+..
+
+.. bpo: 0
+.. date: 8657
+.. nonce: G25tq3
+.. section: Library
+
+Fix repr(_socket.socket) on Windows 64-bit: don't fail with OverflowError on
+closed socket. repr(socket.socket) already works fine.
+
+..
+
+.. bpo: 22033
+.. date: 8656
+.. nonce: nkBNci
+.. section: Library
+
+Reprs of most Python implemented classes now contain actual class name
+instead of hardcoded one.
+
+..
+
+.. bpo: 21947
+.. date: 8655
+.. nonce: mlisu-
+.. section: Library
+
+The dis module can now disassemble generator-iterator objects based on their
+gi_code attribute. Patch by Clement Rouault.
+
+..
+
+.. bpo: 16133
+.. date: 8654
+.. nonce: tYuYQF
+.. section: Library
+
+The asynchat.async_chat.handle_read() method now ignores BlockingIOError
+exceptions.
+
+..
+
+.. bpo: 22044
+.. date: 8653
+.. nonce: t09GRU
+.. section: Library
+
+Fixed premature DECREF in call_tzinfo_method. Patch by Tom Flanagan.
+
+..
+
+.. bpo: 19884
+.. date: 8652
+.. nonce: v73gSn
+.. section: Library
+
+readline: Disable the meta modifier key if stdout is not a terminal to not
+write the ANSI sequence ``"\033[1034h"`` into stdout. This sequence is used
+on some terminal (ex: TERM=xterm-256color") to enable support of 8 bit
+characters.
+
+..
+
+.. bpo: 4350
+.. date: 8651
+.. nonce: nrTzJn
+.. section: Library
+
+Removed a number of out-of-dated and non-working for a long time Tkinter
+methods.
+
+..
+
+.. bpo: 6167
+.. date: 8650
+.. nonce: n9dV_D
+.. section: Library
+
+Scrollbar.activate() now returns the name of active element if the argument
+is not specified. Scrollbar.set() now always accepts only 2 arguments.
+
+..
+
+.. bpo: 15275
+.. date: 8649
+.. nonce: jk0tTI
+.. section: Library
+
+Clean up and speed up the ntpath module.
+
+..
+
+.. bpo: 21888
+.. date: 8648
+.. nonce: danlpz
+.. section: Library
+
+plistlib's load() and loads() now work if the fmt parameter is specified.
+
+..
+
+.. bpo: 22032
+.. date: 8647
+.. nonce: UklzQW
+.. section: Library
+
+__qualname__ instead of __name__ is now always used to format fully
+qualified class names of Python implemented classes.
+
+..
+
+.. bpo: 22031
+.. date: 8646
+.. nonce: 9aazp1
+.. section: Library
+
+Reprs now always use hexadecimal format with the "0x" prefix when contain an
+id in form " at 0x...".
+
+..
+
+.. bpo: 22018
+.. date: 8645
+.. nonce: b_JTHH
+.. section: Library
+
+signal.set_wakeup_fd() now raises an OSError instead of a ValueError on
+``fstat()`` failure.
+
+..
+
+.. bpo: 21044
+.. date: 8644
+.. nonce: 16xo9u
+.. section: Library
+
+tarfile.open() now handles fileobj with an integer 'name' attribute. Based
+on patch by Antoine Pietri.
+
+..
+
+.. bpo: 21966
+.. date: 8643
+.. nonce: hHD9MK
+.. section: Library
+
+Respect -q command-line option when code module is ran.
+
+..
+
+.. bpo: 19076
+.. date: 8642
+.. nonce: xCoIai
+.. section: Library
+
+Don't pass the redundant 'file' argument to self.error().
+
+..
+
+.. bpo: 16382
+.. date: 8641
+.. nonce: -XBK7z
+.. section: Library
+
+Improve exception message of warnings.warn() for bad category. Initial patch
+by Phil Elson.
+
+..
+
+.. bpo: 21932
+.. date: 8640
+.. nonce: LK_5S1
+.. section: Library
+
+os.read() now uses a :c:func:`Py_ssize_t` type instead of :c:expr:`int` for
+the size to support reading more than 2 GB at once. On Windows, the size is
+truncated to INT_MAX. As any call to os.read(), the OS may read less bytes
+than the number of requested bytes.
+
+..
+
+.. bpo: 21942
+.. date: 8639
+.. nonce: TLOS41
+.. section: Library
+
+Fixed source file viewing in pydoc's server mode on Windows.
+
+..
+
+.. bpo: 11259
+.. date: 8638
+.. nonce: GxfYnE
+.. section: Library
+
+asynchat.async_chat().set_terminator() now raises a ValueError if the number
+of received bytes is negative.
+
+..
+
+.. bpo: 12523
+.. date: 8637
+.. nonce: XBdAky
+.. section: Library
+
+asynchat.async_chat.push() now raises a TypeError if it doesn't get a bytes
+string
+
+..
+
+.. bpo: 21707
+.. date: 8636
+.. nonce: rrY_wd
+.. section: Library
+
+Add missing kwonlyargcount argument to ModuleFinder.replace_paths_in_code().
+
+..
+
+.. bpo: 20639
+.. date: 8635
+.. nonce: YdvOpp
+.. section: Library
+
+calling Path.with_suffix('') allows removing the suffix again. Patch by
+July Tikhonov.
+
+..
+
+.. bpo: 21714
+.. date: 8634
+.. nonce: HhkGXW
+.. section: Library
+
+Disallow the construction of invalid paths using Path.with_name(). Original
+patch by Antony Lee.
+
+..
+
+.. bpo: 15014
+.. date: 8633
+.. nonce: dB50zb
+.. section: Library
+
+Added 'auth' method to smtplib to make implementing auth mechanisms simpler,
+and used it internally in the login method.
+
+..
+
+.. bpo: 21151
+.. date: 8632
+.. nonce: o7IuiD
+.. section: Library
+
+Fixed a segfault in the winreg module when ``None`` is passed as a
+``REG_BINARY`` value to SetValueEx. Patch by John Ehresman.
+
+..
+
+.. bpo: 21090
+.. date: 8631
+.. nonce: 20Ooif
+.. section: Library
+
+io.FileIO.readall() does not ignore I/O errors anymore. Before, it ignored
+I/O errors if at least the first C call read() succeed.
+
+..
+
+.. bpo: 5800
+.. date: 8630
+.. nonce: ZJiLZP
+.. section: Library
+
+headers parameter of wsgiref.headers.Headers is now optional. Initial patch
+by Pablo Torres Navarrete and SilentGhost.
+
+..
+
+.. bpo: 21781
+.. date: 8629
+.. nonce: u_oiv9
+.. section: Library
+
+ssl.RAND_add() now supports strings longer than 2 GB.
+
+..
+
+.. bpo: 21679
+.. date: 8628
+.. nonce: CTVT9A
+.. section: Library
+
+Prevent extraneous fstat() calls during open(). Patch by Bohuslav Kabrda.
+
+..
+
+.. bpo: 21863
+.. date: 8627
+.. nonce: BzbwSL
+.. section: Library
+
+cProfile now displays the module name of C extension functions, in addition
+to their own name.
+
+..
+
+.. bpo: 11453
+.. date: 8626
+.. nonce: 53Gr_R
+.. section: Library
+
+asyncore: emit a ResourceWarning when an unclosed file_wrapper object is
+destroyed. The destructor now closes the file if needed. The close() method
+can now be called twice: the second call does nothing.
+
+..
+
+.. bpo: 21858
+.. date: 8625
+.. nonce: 0hbFBG
+.. section: Library
+
+Better handling of Python exceptions in the sqlite3 module.
+
+..
+
+.. bpo: 21476
+.. date: 8624
+.. nonce: VN-5pW
+.. section: Library
+
+Make sure the email.parser.BytesParser TextIOWrapper is discarded after
+parsing, so the input file isn't unexpectedly closed.
+
+..
+
+.. bpo: 20295
+.. date: 8623
+.. nonce: U1MPhw
+.. section: Library
+
+imghdr now recognizes OpenEXR format images.
+
+..
+
+.. bpo: 21729
+.. date: 8622
+.. nonce: dk7o_U
+.. section: Library
+
+Used the "with" statement in the dbm.dumb module to ensure files closing.
+Patch by Claudiu Popa.
+
+..
+
+.. bpo: 21491
+.. date: 8621
+.. nonce: Zxmut-
+.. section: Library
+
+socketserver: Fix a race condition in child processes reaping.
+
+..
+
+.. bpo: 21719
+.. date: 8620
+.. nonce: DhQz3I
+.. section: Library
+
+Added the ``st_file_attributes`` field to os.stat_result on Windows.
+
+..
+
+.. bpo: 21832
+.. date: 8619
+.. nonce: PBA0Uu
+.. section: Library
+
+Require named tuple inputs to be exact strings.
+
+..
+
+.. bpo: 21722
+.. date: 8618
+.. nonce: WTHuRy
+.. section: Library
+
+The distutils "upload" command now exits with a non-zero return code when
+uploading fails. Patch by Martin Dengler.
+
+..
+
+.. bpo: 21723
+.. date: 8617
+.. nonce: r86fwb
+.. section: Library
+
+asyncio.Queue: support any type of number (ex: float) for the maximum size.
+Patch written by Vajrasky Kok.
+
+..
+
+.. bpo: 21711
+.. date: 8616
+.. nonce: JWPFQZ
+.. section: Library
+
+support for "site-python" directories has now been removed from the site
+module (it was deprecated in 3.4).
+
+..
+
+.. bpo: 17552
+.. date: 8615
+.. nonce: NunErD
+.. section: Library
+
+new socket.sendfile() method allowing a file to be sent over a socket by
+using high-performance os.sendfile() on UNIX. Patch by Giampaolo Rodola'.
+
+..
+
+.. bpo: 18039
+.. date: 8614
+.. nonce: vC9hNy
+.. section: Library
+
+dbm.dump.open() now always creates a new database when the flag has the
+value 'n'. Patch by Claudiu Popa.
+
+..
+
+.. bpo: 21326
+.. date: 8613
+.. nonce: Y6iW3s
+.. section: Library
+
+Add a new is_closed() method to asyncio.BaseEventLoop. run_forever() and
+run_until_complete() methods of asyncio.BaseEventLoop now raise an exception
+if the event loop was closed.
+
+..
+
+.. bpo: 21766
+.. date: 8612
+.. nonce: 0xk_xC
+.. section: Library
+
+Prevent a security hole in CGIHTTPServer by URL unquoting paths before
+checking for a CGI script at that path.
+
+..
+
+.. bpo: 21310
+.. date: 8611
+.. nonce: 2mjByJ
+.. section: Library
+
+Fixed possible resource leak in failed open().
+
+..
+
+.. bpo: 21256
+.. date: 8610
+.. nonce: dGq6cw
+.. section: Library
+
+Printout of keyword args should be in deterministic order in a mock function
+call. This will help to write better doctests.
+
+..
+
+.. bpo: 21677
+.. date: 8609
+.. nonce: 58CDDD
+.. section: Library
+
+Fixed chaining nonnormalized exceptions in io close() methods.
+
+..
+
+.. bpo: 11709
+.. date: 8608
+.. nonce: JdObvL
+.. section: Library
+
+Fix the pydoc.help function to not fail when sys.stdin is not a valid file.
+
+..
+
+.. bpo: 21515
+.. date: 8607
+.. nonce: D9TLJF
+.. section: Library
+
+tempfile.TemporaryFile now uses os.O_TMPFILE flag is available.
+
+..
+
+.. bpo: 13223
+.. date: 8606
+.. nonce: 9AzEbN
+.. section: Library
+
+Fix pydoc.writedoc so that the HTML documentation for methods that use
+'self' in the example code is generated correctly.
+
+..
+
+.. bpo: 21463
+.. date: 8605
+.. nonce: 09PsgH
+.. section: Library
+
+In urllib.request, fix pruning of the FTP cache.
+
+..
+
+.. bpo: 21618
+.. date: 8604
+.. nonce: 3Z7WS3
+.. section: Library
+
+The subprocess module could fail to close open fds that were inherited by
+the calling process and already higher than POSIX resource limits would
+otherwise allow. On systems with a functioning /proc/self/fd or /dev/fd
+interface the max is now ignored and all fds are closed.
+
+..
+
+.. bpo: 20383
+.. date: 8603
+.. nonce: pSPFpW
+.. section: Library
+
+Introduce importlib.util.module_from_spec() as the preferred way to create a
+new module.
+
+..
+
+.. bpo: 21552
+.. date: 8602
+.. nonce: uVy4tM
+.. section: Library
+
+Fixed possible integer overflow of too long string lengths in the tkinter
+module on 64-bit platforms.
+
+..
+
+.. bpo: 14315
+.. date: 8601
+.. nonce: YzZzS8
+.. section: Library
+
+The zipfile module now ignores extra fields in the central directory that
+are too short to be parsed instead of letting a struct.unpack error bubble
+up as this "bad data" appears in many real world zip files in the wild and
+is ignored by other zip tools.
+
+..
+
+.. bpo: 13742
+.. date: 8600
+.. nonce: QJiVSC
+.. section: Library
+
+Added "key" and "reverse" parameters to heapq.merge(). (First draft of patch
+contributed by Simon Sapin.)
+
+..
+
+.. bpo: 21402
+.. date: 8599
+.. nonce: 51vDXt
+.. section: Library
+
+tkinter.ttk now works when default root window is not set.
+
+..
+
+.. bpo: 3015
+.. date: 8598
+.. nonce: FE_PII
+.. section: Library
+
+_tkinter.create() now creates tkapp object with wantobject=1 by default.
+
+..
+
+.. bpo: 10203
+.. date: 8597
+.. nonce: zgr0hh
+.. section: Library
+
+sqlite3.Row now truly supports sequence protocol. In particular it supports
+reverse() and negative indices. Original patch by Claudiu Popa.
+
+..
+
+.. bpo: 18807
+.. date: 8596
+.. nonce: XP7p8B
+.. section: Library
+
+If copying (no symlinks) specified for a venv, then the python interpreter
+aliases (python, python3) are now created by copying rather than symlinking.
+
+..
+
+.. bpo: 20197
+.. date: 8595
+.. nonce: nYR9fq
+.. section: Library
+
+Added support for the WebP image type in the imghdr module. Patch by Fabrice
+Aneche and Claudiu Popa.
+
+..
+
+.. bpo: 21513
+.. date: 8594
+.. nonce: ro4AOe
+.. section: Library
+
+Speedup some properties of IP addresses (IPv4Address, IPv6Address) such as
+.is_private or .is_multicast.
+
+..
+
+.. bpo: 21137
+.. date: 8593
+.. nonce: wgHb_F
+.. section: Library
+
+Improve the repr for threading.Lock() and its variants by showing the
+"locked" or "unlocked" status. Patch by Berker Peksag.
+
+..
+
+.. bpo: 21538
+.. date: 8592
+.. nonce: Q60FWA
+.. section: Library
+
+The plistlib module now supports loading of binary plist files when
+reference or offset size is not a power of two.
+
+..
+
+.. bpo: 21455
+.. date: 8591
+.. nonce: 6-Uvv4
+.. section: Library
+
+Add a default backlog to socket.listen().
+
+..
+
+.. bpo: 21525
+.. date: 8590
+.. nonce: hAKOve
+.. section: Library
+
+Most Tkinter methods which accepted tuples now accept lists too.
+
+..
+
+.. bpo: 22166
+.. date: 8589
+.. nonce: sZYhmv
+.. section: Library
+
+With the assistance of a new internal _codecs._forget_codec helping
+function, test_codecs now clears the encoding caches to avoid the appearance
+of a reference leak
+
+..
+
+.. bpo: 22236
+.. date: 8588
+.. nonce: ginJSI
+.. section: Library
+
+Tkinter tests now don't reuse default root window. New root window is
+created for every test class.
+
+..
+
+.. bpo: 10744
+.. date: 8587
+.. nonce: kfV0wm
+.. section: Library
+
+Fix :pep:`3118` format strings on ctypes objects with a nontrivial shape.
+
+..
+
+.. bpo: 20826
+.. date: 8586
+.. nonce: 3rXqMC
+.. section: Library
+
+Optimize ipaddress.collapse_addresses().
+
+..
+
+.. bpo: 21487
+.. date: 8585
+.. nonce: sX8YmK
+.. section: Library
+
+Optimize ipaddress.summarize_address_range() and
+ipaddress.{IPv4Network,IPv6Network}.subnets().
+
+..
+
+.. bpo: 21486
+.. date: 8584
+.. nonce: CeFKRP
+.. section: Library
+
+Optimize parsing of netmasks in ipaddress.IPv4Network and
+ipaddress.IPv6Network.
+
+..
+
+.. bpo: 13916
+.. date: 8583
+.. nonce: D77YVH
+.. section: Library
+
+Disallowed the surrogatepass error handler for non UTF-\* encodings.
+
+..
+
+.. bpo: 20998
+.. date: 8582
+.. nonce: fkxpXI
+.. section: Library
+
+Fixed re.fullmatch() of repeated single character pattern with ignore case.
+Original patch by Matthew Barnett.
+
+..
+
+.. bpo: 21075
+.. date: 8581
+.. nonce: f_hmEh
+.. section: Library
+
+fileinput.FileInput now reads bytes from standard stream if binary mode is
+specified. Patch by Sam Kimbrel.
+
+..
+
+.. bpo: 19775
+.. date: 8580
+.. nonce: yxxD_R
+.. section: Library
+
+Add a samefile() method to pathlib Path objects. Initial patch by Vajrasky
+Kok.
+
+..
+
+.. bpo: 21226
+.. date: 8579
+.. nonce: pzGmG1
+.. section: Library
+
+Set up modules properly in PyImport_ExecCodeModuleObject (and friends).
+
+..
+
+.. bpo: 21398
+.. date: 8578
+.. nonce: guSBXt
+.. section: Library
+
+Fix a unicode error in the pydoc pager when the documentation contains
+characters not encodable to the stdout encoding.
+
+..
+
+.. bpo: 16531
+.. date: 8577
+.. nonce: AhrY_v
+.. section: Library
+
+ipaddress.IPv4Network and ipaddress.IPv6Network now accept an (address,
+netmask) tuple argument, so as to easily construct network objects from
+existing addresses.
+
+..
+
+.. bpo: 21156
+.. date: 8576
+.. nonce: 3dmBEp
+.. section: Library
+
+importlib.abc.InspectLoader.source_to_code() is now a staticmethod.
+
+..
+
+.. bpo: 21424
+.. date: 8575
+.. nonce: 8CJBqW
+.. section: Library
+
+Simplified and optimized heaqp.nlargest() and nmsmallest() to make fewer
+tuple comparisons.
+
+..
+
+.. bpo: 21396
+.. date: 8574
+.. nonce: cqO6DN
+.. section: Library
+
+Fix TextIOWrapper(..., write_through=True) to not force a flush() on the
+underlying binary stream. Patch by akira.
+
+..
+
+.. bpo: 18314
+.. date: 8573
+.. nonce: NCd_KF
+.. section: Library
+
+Unlink now removes junctions on Windows. Patch by Kim Gräsman
+
+..
+
+.. bpo: 21088
+.. date: 8572
+.. nonce: WOg7Xy
+.. section: Library
+
+Bugfix for curses.window.addch() regression in 3.4.0. In porting to Argument
+Clinic, the first two arguments were reversed.
+
+..
+
+.. bpo: 21407
+.. date: 8571
+.. nonce: cZjFde
+.. section: Library
+
+_decimal: The module now supports function signatures.
+
+..
+
+.. bpo: 10650
+.. date: 8570
+.. nonce: HYT4Oe
+.. section: Library
+
+Remove the non-standard 'watchexp' parameter from the Decimal.quantize()
+method in the Python version. It had never been present in the C version.
+
+..
+
+.. bpo: 21469
+.. date: 8569
+.. nonce: _fFGuq
+.. section: Library
+
+Reduced the risk of false positives in robotparser by checking to make sure
+that robots.txt has been read or does not exist prior to returning True in
+can_fetch().
+
+..
+
+.. bpo: 19414
+.. date: 8568
+.. nonce: bAAw4D
+.. section: Library
+
+Have the OrderedDict mark deleted links as unusable. This gives an early
+failure if the link is deleted during iteration.
+
+..
+
+.. bpo: 21421
+.. date: 8567
+.. nonce: 5AKAat
+.. section: Library
+
+Add __slots__ to the MappingViews ABC. Patch by Josh Rosenberg.
+
+..
+
+.. bpo: 21101
+.. date: 8566
+.. nonce: Lj-_P4
+.. section: Library
+
+Eliminate double hashing in the C speed-up code for collections.Counter().
+
+..
+
+.. bpo: 21321
+.. date: 8565
+.. nonce: wUkTON
+.. section: Library
+
+itertools.islice() now releases the reference to the source iterator when
+the slice is exhausted. Patch by Anton Afanasyev.
+
+..
+
+.. bpo: 21057
+.. date: 8564
+.. nonce: 0TC4Xl
+.. section: Library
+
+TextIOWrapper now allows the underlying binary stream's read() or read1()
+method to return an arbitrary bytes-like object (such as a memoryview).
+Patch by Nikolaus Rath.
+
+..
+
+.. bpo: 20951
+.. date: 8563
+.. nonce: tF0dJi
+.. section: Library
+
+SSLSocket.send() now raises either SSLWantReadError or SSLWantWriteError on
+a non-blocking socket if the operation would block. Previously, it would
+return 0. Patch by Nikolaus Rath.
+
+..
+
+.. bpo: 13248
+.. date: 8562
+.. nonce: 7vtGj0
+.. section: Library
+
+removed previously deprecated asyncore.dispatcher __getattr__ cheap
+inheritance hack.
+
+..
+
+.. bpo: 9815
+.. date: 8561
+.. nonce: 52FPlI
+.. section: Library
+
+assertRaises now tries to clear references to local variables in the
+exception's traceback.
+
+..
+
+.. bpo: 19940
+.. date: 8560
+.. nonce: 2qtBQ8
+.. section: Library
+
+ssl.cert_time_to_seconds() now interprets the given time string in the UTC
+timezone (as specified in RFC 5280), not the local timezone.
+
+..
+
+.. bpo: 13204
+.. date: 8559
+.. nonce: ZPKA5g
+.. section: Library
+
+Calling sys.flags.__new__ would crash the interpreter, now it raises a
+TypeError.
+
+..
+
+.. bpo: 19385
+.. date: 8558
+.. nonce: PexO_g
+.. section: Library
+
+Make operations on a closed dbm.dumb database always raise the same
+exception.
+
+..
+
+.. bpo: 21207
+.. date: 8557
+.. nonce: Hr72AB
+.. section: Library
+
+Detect when the os.urandom cached fd has been closed or replaced, and open
+it anew.
+
+..
+
+.. bpo: 21291
+.. date: 8556
+.. nonce: 5sSLWN
+.. section: Library
+
+subprocess's Popen.wait() is now thread safe so that multiple threads may be
+calling wait() or poll() on a Popen instance at the same time without losing
+the Popen.returncode value.
+
+..
+
+.. bpo: 21127
+.. date: 8555
+.. nonce: A1aBjG
+.. section: Library
+
+Path objects can now be instantiated from str subclass instances (such as
+``numpy.str_``).
+
+..
+
+.. bpo: 15002
+.. date: 8554
+.. nonce: qorYDe
+.. section: Library
+
+urllib.response object to use _TemporaryFileWrapper (and
+_TemporaryFileCloser) facility. Provides a better way to handle file
+descriptor close. Patch contributed by Christian Theune.
+
+..
+
+.. bpo: 12220
+.. date: 8553
+.. nonce: U25uE9
+.. section: Library
+
+mindom now raises a custom ValueError indicating it doesn't support spaces
+in URIs instead of letting a 'split' ValueError bubble up.
+
+..
+
+.. bpo: 21068
+.. date: 8552
+.. nonce: 9k6N9m
+.. section: Library
+
+The ssl.PROTOCOL* constants are now enum members.
+
+..
+
+.. bpo: 21276
+.. date: 8551
+.. nonce: JkfhvQ
+.. section: Library
+
+posixmodule: Don't define USE_XATTRS on KFreeBSD and the Hurd.
+
+..
+
+.. bpo: 21262
+.. date: 8550
+.. nonce: 1J5ylk
+.. section: Library
+
+New method assert_not_called for Mock. It raises AssertionError if the mock
+has been called.
+
+..
+
+.. bpo: 21238
+.. date: 8549
+.. nonce: 5CDoox
+.. section: Library
+
+New keyword argument `unsafe` to Mock. It raises `AttributeError` incase of
+an attribute startswith assert or assret.
+
+..
+
+.. bpo: 20896
+.. date: 8548
+.. nonce: oWwAb1
+.. section: Library
+
+ssl.get_server_certificate() now uses PROTOCOL_SSLv23, not PROTOCOL_SSLv3,
+for maximum compatibility.
+
+..
+
+.. bpo: 21239
+.. date: 8547
+.. nonce: EalCNt
+.. section: Library
+
+patch.stopall() didn't work deterministically when the same name was patched
+more than once.
+
+..
+
+.. bpo: 21203
+.. date: 8546
+.. nonce: 1IMs-Z
+.. section: Library
+
+Updated fileConfig and dictConfig to remove inconsistencies. Thanks to Jure
+Koren for the patch.
+
+..
+
+.. bpo: 21222
+.. date: 8545
+.. nonce: G6MQBP
+.. section: Library
+
+Passing name keyword argument to mock.create_autospec now works.
+
+..
+
+.. bpo: 21197
+.. date: 8544
+.. nonce: Gzfqdl
+.. section: Library
+
+Add lib64 -> lib symlink in venvs on 64-bit non-OS X POSIX.
+
+..
+
+.. bpo: 17498
+.. date: 8543
+.. nonce: LR9xyb
+.. section: Library
+
+Some SMTP servers disconnect after certain errors, violating strict RFC
+conformance. Instead of losing the error code when we issue the subsequent
+RSET, smtplib now returns the error code and defers raising the
+SMTPServerDisconnected error until the next command is issued.
+
+..
+
+.. bpo: 17826
+.. date: 8542
+.. nonce: z0zMRV
+.. section: Library
+
+setting an iterable side_effect on a mock function created by
+create_autospec now works. Patch by Kushal Das.
+
+..
+
+.. bpo: 7776
+.. date: 8541
+.. nonce: K5S2Pe
+.. section: Library
+
+Fix ``Host:`` header and reconnection when using
+http.client.HTTPConnection.set_tunnel(). Patch by Nikolaus Rath.
+
+..
+
+.. bpo: 20968
+.. date: 8540
+.. nonce: 53Aagz
+.. section: Library
+
+unittest.mock.MagicMock now supports division. Patch by Johannes Baiter.
+
+..
+
+.. bpo: 21529
+.. date: 8539
+.. nonce: 57R_Fc
+.. section: Library
+
+Fix arbitrary memory access in JSONDecoder.raw_decode with a negative second
+parameter. Bug reported by Guido Vranken. (See also: CVE-2014-4616)
+
+..
+
+.. bpo: 21169
+.. date: 8538
+.. nonce: KE7B0M
+.. section: Library
+
+getpass now handles non-ascii characters that the input stream encoding
+cannot encode by re-encoding using the replace error handler.
+
+..
+
+.. bpo: 21171
+.. date: 8537
+.. nonce: iUbV9S
+.. section: Library
+
+Fixed undocumented filter API of the rot13 codec. Patch by Berker Peksag.
+
+..
+
+.. bpo: 20539
+.. date: 8536
+.. nonce: 62nbEb
+.. section: Library
+
+Improved math.factorial error message for large positive inputs and changed
+exception type (OverflowError -> ValueError) for large negative inputs.
+
+..
+
+.. bpo: 21172
+.. date: 8535
+.. nonce: dQ7yY7
+.. section: Library
+
+isinstance check relaxed from dict to collections.Mapping.
+
+..
+
+.. bpo: 21155
+.. date: 8534
+.. nonce: JSKEE7
+.. section: Library
+
+asyncio.EventLoop.create_unix_server() now raises a ValueError if path and
+sock are specified at the same time.
+
+..
+
+.. bpo: 21136
+.. date: 8533
+.. nonce: JZAKv3
+.. section: Library
+
+Avoid unnecessary normalization of Fractions resulting from power and other
+operations. Patch by Raymond Hettinger.
+
+..
+
+.. bpo: 17621
+.. date: 8532
+.. nonce: 1x0mvJ
+.. section: Library
+
+Introduce importlib.util.LazyLoader.
+
+..
+
+.. bpo: 21076
+.. date: 8531
+.. nonce: upxQc6
+.. section: Library
+
+signal module constants were turned into enums. Patch by Giampaolo Rodola'.
+
+..
+
+.. bpo: 20636
+.. date: 8530
+.. nonce: KGh-BD
+.. section: Library
+
+Improved the repr of Tkinter widgets.
+
+..
+
+.. bpo: 19505
+.. date: 8529
+.. nonce: VEtIE6
+.. section: Library
+
+The items, keys, and values views of OrderedDict now support reverse
+iteration using reversed().
+
+..
+
+.. bpo: 21149
+.. date: 8528
+.. nonce: cnjwMR
+.. section: Library
+
+Improved thread-safety in logging cleanup during interpreter shutdown.
+Thanks to Devin Jeanpierre for the patch.
+
+..
+
+.. bpo: 21058
+.. date: 8527
+.. nonce: IhluPP
+.. section: Library
+
+Fix a leak of file descriptor in :func:`tempfile.NamedTemporaryFile`, close
+the file descriptor if :func:`io.open` fails
+
+..
+
+.. bpo: 21200
+.. date: 8526
+.. nonce: Kht8yD
+.. section: Library
+
+Return None from pkgutil.get_loader() when __spec__ is missing.
+
+..
+
+.. bpo: 21013
+.. date: 8525
+.. nonce: 3s8Ic0
+.. section: Library
+
+Enhance ssl.create_default_context() when used for server side sockets to
+provide better security by default.
+
+..
+
+.. bpo: 20145
+.. date: 8524
+.. nonce: FP5FY0
+.. section: Library
+
+`assertRaisesRegex` and `assertWarnsRegex` now raise a TypeError if the
+second argument is not a string or compiled regex.
+
+..
+
+.. bpo: 20633
+.. date: 8523
+.. nonce: 6kaPjT
+.. section: Library
+
+Replace relative import by absolute import.
+
+..
+
+.. bpo: 20980
+.. date: 8522
+.. nonce: cYszHY
+.. section: Library
+
+Stop wrapping exception when using ThreadPool.
+
+..
+
+.. bpo: 21082
+.. date: 8521
+.. nonce: GLzGlV
+.. section: Library
+
+In os.makedirs, do not set the process-wide umask. Note this changes
+behavior of makedirs when exist_ok=True.
+
+..
+
+.. bpo: 20990
+.. date: 8520
+.. nonce: PBfjW3
+.. section: Library
+
+Fix issues found by pyflakes for multiprocessing.
+
+..
+
+.. bpo: 21015
+.. date: 8519
+.. nonce: xnwWAH
+.. section: Library
+
+SSL contexts will now automatically select an elliptic curve for ECDH key
+exchange on OpenSSL 1.0.2 and later, and otherwise default to "prime256v1".
+
+..
+
+.. bpo: 21000
+.. date: 8518
+.. nonce: JUyyVV
+.. section: Library
+
+Improve the command-line interface of json.tool.
+
+..
+
+.. bpo: 20995
+.. date: 8517
+.. nonce: KSORJT
+.. section: Library
+
+Enhance default ciphers used by the ssl module to enable better security and
+prioritize perfect forward secrecy.
+
+..
+
+.. bpo: 20884
+.. date: 8516
+.. nonce: qNmub_
+.. section: Library
+
+Don't assume that __file__ is defined on importlib.__init__.
+
+..
+
+.. bpo: 21499
+.. date: 8515
+.. nonce: wU4OBi
+.. section: Library
+
+Ignore __builtins__ in several test_importlib.test_api tests.
+
+..
+
+.. bpo: 20627
+.. date: 8514
+.. nonce: fgfQ1x
+.. section: Library
+
+xmlrpc.client.ServerProxy is now a context manager.
+
+..
+
+.. bpo: 19165
+.. date: 8513
+.. nonce: sAkUjU
+.. section: Library
+
+The formatter module now raises DeprecationWarning instead of
+PendingDeprecationWarning.
+
+..
+
+.. bpo: 13936
+.. date: 8512
+.. nonce: _Q0Yog
+.. section: Library
+
+Remove the ability of datetime.time instances to be considered false in
+boolean contexts.
+
+..
+
+.. bpo: 18931
+.. date: 8511
+.. nonce: mq4Mud
+.. section: Library
+
+selectors module now supports /dev/poll on Solaris. Patch by Giampaolo
+Rodola'.
+
+..
+
+.. bpo: 19977
+.. date: 8510
+.. nonce: A-sQ_V
+.. section: Library
+
+When the ``LC_TYPE`` locale is the POSIX locale (``C`` locale),
+:py:data:`sys.stdin` and :py:data:`sys.stdout` are now using the
+``surrogateescape`` error handler, instead of the ``strict`` error handler.
+
+..
+
+.. bpo: 20574
+.. date: 8509
+.. nonce: KaKqSs
+.. section: Library
+
+Implement incremental decoder for cp65001 code (Windows code page 65001,
+Microsoft UTF-8).
+
+..
+
+.. bpo: 20879
+.. date: 8508
+.. nonce: myeYdq
+.. section: Library
+
+Delay the initialization of encoding and decoding tables for base32, ascii85
+and base85 codecs in the base64 module, and delay the initialization of the
+unquote_to_bytes() table of the urllib.parse module, to not waste memory if
+these modules are not used.
+
+..
+
+.. bpo: 19157
+.. date: 8507
+.. nonce: V1-XhC
+.. section: Library
+
+Include the broadcast address in the usuable hosts for IPv6 in ipaddress.
+
+..
+
+.. bpo: 11599
+.. date: 8506
+.. nonce: 9QOXf4
+.. section: Library
+
+When an external command (e.g. compiler) fails, distutils now prints out the
+whole command line (instead of just the command name) if the environment
+variable DISTUTILS_DEBUG is set.
+
+..
+
+.. bpo: 4931
+.. date: 8505
+.. nonce: uF10hr
+.. section: Library
+
+distutils should not produce unhelpful "error: None" messages anymore.
+distutils.util.grok_environment_error is kept but doc-deprecated.
+
+..
+
+.. bpo: 20875
+.. date: 8504
+.. nonce: IjfI5V
+.. section: Library
+
+Prevent possible gzip "'read' is not defined" NameError. Patch by Claudiu
+Popa.
+
+..
+
+.. bpo: 11558
+.. date: 8503
+.. nonce: pxrsmq
+.. section: Library
+
+``email.message.Message.attach`` now returns a more useful error message if
+``attach`` is called on a message for which ``is_multipart`` is False.
+
+..
+
+.. bpo: 20283
+.. date: 8502
+.. nonce: v0Vs9V
+.. section: Library
+
+RE pattern methods now accept the string keyword parameters as documented.
+The pattern and source keyword parameters are left as deprecated aliases.
+
+..
+
+.. bpo: 20778
+.. date: 8501
+.. nonce: g_fAGI
+.. section: Library
+
+Fix modulefinder to work with bytecode-only modules.
+
+..
+
+.. bpo: 20791
+.. date: 8500
+.. nonce: n_zrkc
+.. section: Library
+
+copy.copy() now doesn't make a copy when the input is a bytes object.
+Initial patch by Peter Otten.
+
+..
+
+.. bpo: 19748
+.. date: 8499
+.. nonce: kiA171
+.. section: Library
+
+On AIX, time.mktime() now raises an OverflowError for year outsize range
+[1902; 2037].
+
+..
+
+.. bpo: 19573
+.. date: 8498
+.. nonce: QJvX_V
+.. section: Library
+
+inspect.signature: Use enum for parameter kind constants.
+
+..
+
+.. bpo: 20726
+.. date: 8497
+.. nonce: 0yfRDI
+.. section: Library
+
+inspect.signature: Make Signature and Parameter picklable.
+
+..
+
+.. bpo: 17373
+.. date: 8496
+.. nonce: ECwuJO
+.. section: Library
+
+Add inspect.Signature.from_callable method.
+
+..
+
+.. bpo: 20378
+.. date: 8495
+.. nonce: l9M3H-
+.. section: Library
+
+Improve repr of inspect.Signature and inspect.Parameter.
+
+..
+
+.. bpo: 20816
+.. date: 8494
+.. nonce: DFMEgN
+.. section: Library
+
+Fix inspect.getcallargs() to raise correct TypeError for missing
+keyword-only arguments. Patch by Jeremiah Lowin.
+
+..
+
+.. bpo: 20817
+.. date: 8493
+.. nonce: O5XyZB
+.. section: Library
+
+Fix inspect.getcallargs() to fail correctly if more than 3 arguments are
+missing. Patch by Jeremiah Lowin.
+
+..
+
+.. bpo: 6676
+.. date: 8492
+.. nonce: CJu5On
+.. section: Library
+
+Ensure a meaningful exception is raised when attempting to parse more than
+one XML document per pyexpat xmlparser instance. (Original patches by
+Hirokazu Yamamoto and Amaury Forgeot d'Arc, with suggested wording by David
+Gutteridge)
+
+..
+
+.. bpo: 21117
+.. date: 8491
+.. nonce: hyH7EK
+.. section: Library
+
+Fix inspect.signature to better support functools.partial. Due to the
+specifics of functools.partial implementation, positional-or-keyword
+arguments passed as keyword arguments become keyword-only.
+
+..
+
+.. bpo: 20334
+.. date: 8490
+.. nonce: 0yFmfQ
+.. section: Library
+
+inspect.Signature and inspect.Parameter are now hashable. Thanks to Antony
+Lee for bug reports and suggestions.
+
+..
+
+.. bpo: 15916
+.. date: 8489
+.. nonce: _vhKPn
+.. section: Library
+
+doctest.DocTestSuite returns an empty unittest.TestSuite instead of raising
+ValueError if it finds no tests
+
+..
+
+.. bpo: 21209
+.. date: 8488
+.. nonce: wRE7Dn
+.. section: Library
+
+Fix asyncio.tasks.CoroWrapper to workaround a bug in yield-from
+implementation in CPythons prior to 3.4.1.
+
+..
+
+.. bpo: 0
+.. date: 8487
+.. nonce: Q1I78Z
+.. section: Library
+
+asyncio: Add gi_{frame,running,code} properties to CoroWrapper (upstream
+issue #163).
+
+..
+
+.. bpo: 21311
+.. date: 8486
+.. nonce: JsDF8H
+.. section: Library
+
+Avoid exception in _osx_support with non-standard compiler configurations.
+Patch by John Szakmeister.
+
+..
+
+.. bpo: 11571
+.. date: 8485
+.. nonce: RPeGNo
+.. section: Library
+
+Ensure that the turtle window becomes the topmost window when launched on OS
+X.
+
+..
+
+.. bpo: 21801
+.. date: 8484
+.. nonce: rzfhYl
+.. section: Library
+
+Validate that __signature__ is None or an instance of Signature.
+
+..
+
+.. bpo: 21923
+.. date: 8483
+.. nonce: hXnoZa
+.. section: Library
+
+Prevent AttributeError in distutils.sysconfig.customize_compiler due to
+possible uninitialized _config_vars.
+
+..
+
+.. bpo: 21323
+.. date: 8482
+.. nonce: quiWfl
+.. section: Library
+
+Fix http.server to again handle scripts in CGI subdirectories, broken by the
+fix for security issue #19435. Patch by Zach Byrne.
+
+..
+
+.. bpo: 22733
+.. date: 8481
+.. nonce: 21gJBp
+.. section: Library
+
+Fix ffi_prep_args not zero-extending argument values correctly on 64-bit
+Windows.
+
+..
+
+.. bpo: 23302
+.. date: 8480
+.. nonce: X2dabK
+.. section: Library
+
+Default to TCP_NODELAY=1 upon establishing an HTTPConnection. Removed use of
+hard-coded MSS as it's an optimization that's no longer needed with Nagle
+disabled.
+
+..
+
+.. bpo: 20577
+.. date: 8479
+.. nonce: Y71IMj
+.. section: IDLE
+
+Configuration of the max line length for the FormatParagraph extension has
+been moved from the General tab of the Idle preferences dialog to the
+FormatParagraph tab of the Config Extensions dialog. Patch by Tal Einat.
+
+..
+
+.. bpo: 16893
+.. date: 8478
+.. nonce: JfHAA4
+.. section: IDLE
+
+Update Idle doc chapter to match current Idle and add new information.
+
+..
+
+.. bpo: 3068
+.. date: 8477
+.. nonce: TYjXTA
+.. section: IDLE
+
+Add Idle extension configuration dialog to Options menu. Changes are written
+to HOME/.idlerc/config-extensions.cfg. Original patch by Tal Einat.
+
+..
+
+.. bpo: 16233
+.. date: 8476
+.. nonce: sOadNo
+.. section: IDLE
+
+A module browser (File : Class Browser, Alt+C) requires an editor window
+with a filename. When Class Browser is requested otherwise, from a shell,
+output window, or 'Untitled' editor, Idle no longer displays an error box.
+It now pops up an Open Module box (Alt+M). If a valid name is entered and a
+module is opened, a corresponding browser is also opened.
+
+..
+
+.. bpo: 4832
+.. date: 8475
+.. nonce: GRKi9M
+.. section: IDLE
+
+Save As to type Python files automatically adds .py to the name you enter
+(even if your system does not display it). Some systems automatically add
+.txt when type is Text files.
+
+..
+
+.. bpo: 21986
+.. date: 8474
+.. nonce: 04GUv2
+.. section: IDLE
+
+Code objects are not normally pickled by the pickle module. To match this,
+they are no longer pickled when running under Idle.
+
+..
+
+.. bpo: 17390
+.. date: 8473
+.. nonce: I4vHFh
+.. section: IDLE
+
+Adjust Editor window title; remove 'Python', move version to end.
+
+..
+
+.. bpo: 14105
+.. date: 8472
+.. nonce: -FZwYH
+.. section: IDLE
+
+Idle debugger breakpoints no longer disappear when inserting or deleting
+lines.
+
+..
+
+.. bpo: 17172
+.. date: 8471
+.. nonce: R8jkU1
+.. section: IDLE
+
+Turtledemo can now be run from Idle. Currently, the entry is on the Help
+menu, but it may move to Run. Patch by Ramchandra Apt and Lita Cho.
+
+..
+
+.. bpo: 21765
+.. date: 8470
+.. nonce: JyiDbd
+.. section: IDLE
+
+Add support for non-ascii identifiers to HyperParser.
+
+..
+
+.. bpo: 21940
+.. date: 8469
+.. nonce: VlIRz7
+.. section: IDLE
+
+Add unittest for WidgetRedirector. Initial patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 18592
+.. date: 8468
+.. nonce: sMG-SZ
+.. section: IDLE
+
+Add unittest for SearchDialogBase. Patch by Phil Webster.
+
+..
+
+.. bpo: 21694
+.. date: 8467
+.. nonce: 1oLmRo
+.. section: IDLE
+
+Add unittest for ParenMatch. Patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 21686
+.. date: 8466
+.. nonce: TAkFB0
+.. section: IDLE
+
+add unittest for HyperParser. Original patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 12387
+.. date: 8465
+.. nonce: XO7Ozk
+.. section: IDLE
+
+Add missing upper(lower)case versions of default Windows key bindings for
+Idle so Caps Lock does not disable them. Patch by Roger Serwy.
+
+..
+
+.. bpo: 21695
+.. date: 8464
+.. nonce: g-t0Tm
+.. section: IDLE
+
+Closing a Find-in-files output window while the search is still in progress
+no longer closes Idle.
+
+..
+
+.. bpo: 18910
+.. date: 8463
+.. nonce: ke8lMK
+.. section: IDLE
+
+Add unittest for textView. Patch by Phil Webster.
+
+..
+
+.. bpo: 18292
+.. date: 8462
+.. nonce: ks_3wm
+.. section: IDLE
+
+Add unittest for AutoExpand. Patch by Saihadhav Heblikar.
+
+..
+
+.. bpo: 18409
+.. date: 8461
+.. nonce: 7fe-aK
+.. section: IDLE
+
+Add unittest for AutoComplete. Patch by Phil Webster.
+
+..
+
+.. bpo: 21477
+.. date: 8460
+.. nonce: 33NOe0
+.. section: IDLE
+
+htest.py - Improve framework, complete set of tests. Patches by Saimadhav
+Heblikar
+
+..
+
+.. bpo: 18104
+.. date: 8459
+.. nonce: 8Fj9Pf
+.. section: IDLE
+
+Add idlelib/idle_test/htest.py with a few sample tests to begin
+consolidating and improving human-validated tests of Idle. Change other
+files as needed to work with htest. Running the module as __main__ runs all
+tests.
+
+..
+
+.. bpo: 21139
+.. date: 8458
+.. nonce: kqetng
+.. section: IDLE
+
+Change default paragraph width to 72, the :pep:`8` recommendation.
+
+..
+
+.. bpo: 21284
+.. date: 8457
+.. nonce: KKJfmv
+.. section: IDLE
+
+Paragraph reformat test passes after user changes reformat width.
+
+..
+
+.. bpo: 17654
+.. date: 8456
+.. nonce: NbzhNS
+.. section: IDLE
+
+Ensure IDLE menus are customized properly on OS X for non-framework builds
+and for all variants of Tk.
+
+..
+
+.. bpo: 23180
+.. date: 8455
+.. nonce: cE_89F
+.. section: IDLE
+
+Rename IDLE "Windows" menu item to "Window". Patch by Al Sweigart.
+
+..
+
+.. bpo: 15506
+.. date: 8454
+.. nonce: nh8KlR
+.. section: Build
+
+Use standard PKG_PROG_PKG_CONFIG autoconf macro in the configure script.
+
+..
+
+.. bpo: 22935
+.. date: 8453
+.. nonce: -vY3lc
+.. section: Build
+
+Allow the ssl module to be compiled if openssl doesn't support SSL 3.
+
+..
+
+.. bpo: 22592
+.. date: 8452
+.. nonce: O_IE9W
+.. section: Build
+
+Drop support of the Borland C compiler to build Python. The distutils module
+still supports it to build extensions.
+
+..
+
+.. bpo: 22591
+.. date: 8451
+.. nonce: wwBlG8
+.. section: Build
+
+Drop support of MS-DOS, especially of the DJGPP compiler (MS-DOS port of
+GCC).
+
+..
+
+.. bpo: 16537
+.. date: 8450
+.. nonce: llFo71
+.. section: Build
+
+Check whether self.extensions is empty in setup.py. Patch by Jonathan
+Hosmer.
+
+..
+
+.. bpo: 22359
+.. date: 8449
+.. nonce: YYFOFG
+.. section: Build
+
+Remove incorrect uses of recursive make. Patch by Jonas Wagner.
+
+..
+
+.. bpo: 21958
+.. date: 8448
+.. nonce: 3rq4qR
+.. section: Build
+
+Define HAVE_ROUND when building with Visual Studio 2013 and above. Patch by
+Zachary Turner.
+
+..
+
+.. bpo: 18093
+.. date: 8447
+.. nonce: gnZieo
+.. section: Build
+
+the programs that embed the CPython runtime are now in a separate "Programs"
+directory, rather than being kept in the Modules directory.
+
+..
+
+.. bpo: 15759
+.. date: 8446
+.. nonce: iGLR6O
+.. section: Build
+
+"make suspicious", "make linkcheck" and "make doctest" in Doc/ now display
+special message when and only when there are failures.
+
+..
+
+.. bpo: 21141
+.. date: 8445
+.. nonce: 669LzK
+.. section: Build
+
+The Windows build process no longer attempts to find Perl, instead relying
+on OpenSSL source being configured and ready to build. The
+``PCbuild\build_ssl.py`` script has been re-written and re-named to
+``PCbuild\prepare_ssl.py``, and takes care of configuring OpenSSL source for
+both 32 and 64 bit platforms. OpenSSL sources obtained from svn.python.org
+will always be pre-configured and ready to build.
+
+..
+
+.. bpo: 21037
+.. date: 8444
+.. nonce: v1rZzo
+.. section: Build
+
+Add a build option to enable AddressSanitizer support.
+
+..
+
+.. bpo: 19962
+.. date: 8443
+.. nonce: HDlwsE
+.. section: Build
+
+The Windows build process now creates "python.bat" in the root of the source
+tree, which passes all arguments through to the most recently built
+interpreter.
+
+..
+
+.. bpo: 21285
+.. date: 8442
+.. nonce: cU9p2E
+.. section: Build
+
+Refactor and fix curses configure check to always search in a ncursesw
+directory.
+
+..
+
+.. bpo: 15234
+.. date: 8441
+.. nonce: vlM720
+.. section: Build
+
+For BerkeleyDB and Sqlite, only add the found library and include directories
+if they aren't already being searched. This avoids an explicit runtime
+library dependency.
+
+..
+
+.. bpo: 17861
+.. date: 8440
+.. nonce: jCi44U
+.. section: Build
+
+Tools/scripts/generate_opcode_h.py automatically regenerates
+Include/opcode.h from Lib/opcode.py if the latter gets any change.
+
+..
+
+.. bpo: 20644
+.. date: 8439
+.. nonce: aV0zq7
+.. section: Build
+
+OS X installer build support for documentation build changes in 3.4.1:
+assume externally supplied sphinx-build is available in /usr/bin.
+
+..
+
+.. bpo: 20022
+.. date: 8438
+.. nonce: EqSCTW
+.. section: Build
+
+Eliminate use of deprecated bundlebuilder in OS X builds.
+
+..
+
+.. bpo: 15968
+.. date: 8437
+.. nonce: vxUxHK
+.. section: Build
+
+Incorporated Tcl, Tk, and Tix builds into the Windows build solution.
+
+..
+
+.. bpo: 17095
+.. date: 8436
+.. nonce: -XEBIU
+.. section: Build
+
+Fix Modules/Setup *shared* support.
+
+..
+
+.. bpo: 21811
+.. date: 8435
+.. nonce: 3_Xyr-
+.. section: Build
+
+Anticipated fixes to support OS X versions > 10.9.
+
+..
+
+.. bpo: 21166
+.. date: 8434
+.. nonce: KAl7aO
+.. section: Build
+
+Prevent possible segfaults and other random failures of python
+--generate-posix-vars in pybuilddir.txt build target.
+
+..
+
+.. bpo: 18096
+.. date: 8433
+.. nonce: ELyAUJ
+.. section: Build
+
+Fix library order returned by python-config.
+
+..
+
+.. bpo: 17219
+.. date: 8432
+.. nonce: q8ueQ0
+.. section: Build
+
+Add library build dir for Python extension cross-builds.
+
+..
+
+.. bpo: 22919
+.. date: 8431
+.. nonce: 1XThL9
+.. section: Build
+
+Windows build updated to support VC 14.0 (Visual Studio 2015), which will be
+used for the official release.
+
+..
+
+.. bpo: 21236
+.. date: 8430
+.. nonce: 84LXxj
+.. section: Build
+
+Build _msi.pyd with cabinet.lib instead of fci.lib
+
+..
+
+.. bpo: 17128
+.. date: 8429
+.. nonce: U2biLA
+.. section: Build
+
+Use private version of OpenSSL for OS X 10.5+ installer.
+
+..
+
+.. bpo: 14203
+.. date: 8428
+.. nonce: 3hv0TX
+.. section: C API
+
+Remove obsolete support for view==NULL in PyBuffer_FillInfo(),
+bytearray_getbuffer(), bytesiobuf_getbuffer() and array_buffer_getbuf(). All
+functions now raise BufferError in that case.
+
+..
+
+.. bpo: 22445
+.. date: 8427
+.. nonce: s0AOAS
+.. section: C API
+
+PyBuffer_IsContiguous() now implements precise contiguity tests, compatible
+with NumPy's NPY_RELAXED_STRIDES_CHECKING compilation flag. Previously the
+function reported false negatives for corner cases.
+
+..
+
+.. bpo: 22079
+.. date: 8426
+.. nonce: zhs2qM
+.. section: C API
+
+PyType_Ready() now checks that statically allocated type has no dynamically
+allocated bases.
+
+..
+
+.. bpo: 22453
+.. date: 8425
+.. nonce: XoO4ns
+.. section: C API
+
+Removed non-documented macro PyObject_REPR().
+
+..
+
+.. bpo: 18395
+.. date: 8424
+.. nonce: YC9B06
+.. section: C API
+
+Rename ``_Py_char2wchar()`` to :c:func:`Py_DecodeLocale`, rename
+``_Py_wchar2char()`` to :c:func:`Py_EncodeLocale`, and document these
+functions.
+
+..
+
+.. bpo: 21233
+.. date: 8423
+.. nonce: 98hZAt
+.. section: C API
+
+Add new C functions: PyMem_RawCalloc(), PyMem_Calloc(), PyObject_Calloc(),
+_PyObject_GC_Calloc(). bytes(int) is now using ``calloc()`` instead of
+``malloc()`` for large objects which is faster and use less memory.
+
+..
+
+.. bpo: 20942
+.. date: 8422
+.. nonce: qHLJ5-
+.. section: C API
+
+PyImport_ImportFrozenModuleObject() no longer sets __file__ to match what
+importlib does; this affects _frozen_importlib as well as any module loaded
+using imp.init_frozen().
+
+..
+
+.. bpo: 19548
+.. date: 8421
+.. nonce: yOX8sS
+.. section: Documentation
+
+Update the codecs module documentation to better cover the distinction
+between text encodings and other codecs, together with other clarifications.
+Patch by Martin Panter.
+
+..
+
+.. bpo: 22394
+.. date: 8420
+.. nonce: 6bJywY
+.. section: Documentation
+
+Doc/Makefile now supports ``make venv PYTHON=../python`` to create a venv
+for generating the documentation, e.g., ``make html
+PYTHON=venv/bin/python3``.
+
+..
+
+.. bpo: 21514
+.. date: 8419
+.. nonce: 1H16T6
+.. section: Documentation
+
+The documentation of the json module now refers to new JSON RFC 7159 instead
+of obsoleted RFC 4627.
+
+..
+
+.. bpo: 21777
+.. date: 8418
+.. nonce: dtQCWV
+.. section: Documentation
+
+The binary sequence methods on bytes and bytearray are now documented
+explicitly, rather than assuming users will be able to derive the expected
+behaviour from the behaviour of the corresponding str methods.
+
+..
+
+.. bpo: 6916
+.. date: 8417
+.. nonce: 4sm3nE
+.. section: Documentation
+
+undocument deprecated asynchat.fifo class.
+
+..
+
+.. bpo: 17386
+.. date: 8416
+.. nonce: ivaGLb
+.. section: Documentation
+
+Expanded functionality of the ``Doc/make.bat`` script to make it much more
+comparable to ``Doc/Makefile``.
+
+..
+
+.. bpo: 21312
+.. date: 8415
+.. nonce: 6IqcV4
+.. section: Documentation
+
+Update the thread_foobar.h template file to include newer threading APIs.
+Patch by Jack McCracken.
+
+..
+
+.. bpo: 21043
+.. date: 8414
+.. nonce: oEOC8O
+.. section: Documentation
+
+Remove the recommendation for specific CA organizations and to mention the
+ability to load the OS certificates.
+
+..
+
+.. bpo: 20765
+.. date: 8413
+.. nonce: Rv3GgV
+.. section: Documentation
+
+Add missing documentation for PurePath.with_name() and
+PurePath.with_suffix().
+
+..
+
+.. bpo: 19407
+.. date: 8412
+.. nonce: mRyNnG
+.. section: Documentation
+
+New package installation and distribution guides based on the Python
+Packaging Authority tools. Existing guides have been retained as legacy
+links from the distutils docs, as they still contain some required reference
+material for tool developers that isn't recorded anywhere else.
+
+..
+
+.. bpo: 19697
+.. date: 8411
+.. nonce: 2jMQBP
+.. section: Documentation
+
+Document cases where __main__.__spec__ is None.
+
+..
+
+.. bpo: 18982
+.. date: 8410
+.. nonce: TynSM6
+.. section: Tests
+
+Add tests for CLI of the calendar module.
+
+..
+
+.. bpo: 19548
+.. date: 8409
+.. nonce: 25Kxq_
+.. section: Tests
+
+Added some additional checks to test_codecs to ensure that statements in the
+updated documentation remain accurate. Patch by Martin Panter.
+
+..
+
+.. bpo: 22838
+.. date: 8408
+.. nonce: VZBtZg
+.. section: Tests
+
+All test_re tests now work with unittest test discovery.
+
+..
+
+.. bpo: 22173
+.. date: 8407
+.. nonce: dxIIVx
+.. section: Tests
+
+Update lib2to3 tests to use unittest test discovery.
+
+..
+
+.. bpo: 16000
+.. date: 8406
+.. nonce: Y7O6TP
+.. section: Tests
+
+Convert test_curses to use unittest.
+
+..
+
+.. bpo: 21456
+.. date: 8405
+.. nonce: Axsw43
+.. section: Tests
+
+Skip two tests in test_urllib2net.py if _ssl module not present. Patch by
+Remi Pointel.
+
+..
+
+.. bpo: 20746
+.. date: 8404
+.. nonce: N2pzAY
+.. section: Tests
+
+Fix test_pdb to run in refleak mode (-R). Patch by Xavier de Gaye.
+
+..
+
+.. bpo: 22060
+.. date: 8403
+.. nonce: TduJNO
+.. section: Tests
+
+test_ctypes has been somewhat cleaned up and simplified; it now uses
+unittest test discovery to find its tests.
+
+..
+
+.. bpo: 22104
+.. date: 8402
+.. nonce: -YYDup
+.. section: Tests
+
+regrtest.py no longer holds a reference to the suite of tests loaded from
+test modules that don't define test_main().
+
+..
+
+.. bpo: 22111
+.. date: 8401
+.. nonce: 0XlFAU
+.. section: Tests
+
+Assorted cleanups in test_imaplib. Patch by Milan Oberkirch.
+
+..
+
+.. bpo: 22002
+.. date: 8400
+.. nonce: jpiaA2
+.. section: Tests
+
+Added ``load_package_tests`` function to test.support and used it to
+implement/augment test discovery in test_asyncio, test_email,
+test_importlib, test_json, and test_tools.
+
+..
+
+.. bpo: 21976
+.. date: 8399
+.. nonce: Slq6se
+.. section: Tests
+
+Fix test_ssl to accept LibreSSL version strings. Thanks to William Orr.
+
+..
+
+.. bpo: 21918
+.. date: 8398
+.. nonce: QTFFSj
+.. section: Tests
+
+Converted test_tools from a module to a package containing separate test
+files for each tested script.
+
+..
+
+.. bpo: 9554
+.. date: 8397
+.. nonce: VsP0Ve
+.. section: Tests
+
+Use modern unittest features in test_argparse. Initial patch by Denver
+Coneybeare and Radu Voicilas.
+
+..
+
+.. bpo: 20155
+.. date: 8396
+.. nonce: nphzS3
+.. section: Tests
+
+Changed HTTP method names in failing tests in test_httpservers so that
+packet filtering software (specifically Windows Base Filtering Engine) does
+not interfere with the transaction semantics expected by the tests.
+
+..
+
+.. bpo: 19493
+.. date: 8395
+.. nonce: SwbzLQ
+.. section: Tests
+
+Refactored the ctypes test package to skip tests explicitly rather than
+silently.
+
+..
+
+.. bpo: 18492
+.. date: 8394
+.. nonce: ylPRU7
+.. section: Tests
+
+All resources are now allowed when tests are not run by regrtest.py.
+
+..
+
+.. bpo: 21634
+.. date: 8393
+.. nonce: Eng06F
+.. section: Tests
+
+Fix pystone micro-benchmark: use floor division instead of true division to
+benchmark integers instead of floating point numbers. Set pystone version to
+1.2. Patch written by Lennart Regebro.
+
+..
+
+.. bpo: 21605
+.. date: 8392
+.. nonce: qsLV8d
+.. section: Tests
+
+Added tests for Tkinter images.
+
+..
+
+.. bpo: 21493
+.. date: 8391
+.. nonce: NqhRsy
+.. section: Tests
+
+Added test for ntpath.expanduser(). Original patch by Claudiu Popa.
+
+..
+
+.. bpo: 19925
+.. date: 8390
+.. nonce: dhMx08
+.. section: Tests
+
+Added tests for the spwd module. Original patch by Vajrasky Kok.
+
+..
+
+.. bpo: 21522
+.. date: 8389
+.. nonce: b-VwFW
+.. section: Tests
+
+Added Tkinter tests for Listbox.itemconfigure(),
+PanedWindow.paneconfigure(), and Menu.entryconfigure().
+
+..
+
+.. bpo: 17756
+.. date: 8388
+.. nonce: LLfbfU
+.. section: Tests
+
+Fix test_code test when run from the installed location.
+
+..
+
+.. bpo: 17752
+.. date: 8387
+.. nonce: P8iG44
+.. section: Tests
+
+Fix distutils tests when run from the installed location.
+
+..
+
+.. bpo: 18604
+.. date: 8386
+.. nonce: Q00Xrj
+.. section: Tests
+
+Consolidated checks for GUI availability. All platforms now at least check
+whether Tk can be instantiated when the GUI resource is requested.
+
+..
+
+.. bpo: 21275
+.. date: 8385
+.. nonce: lI5FkX
+.. section: Tests
+
+Fix a socket test on KFreeBSD.
+
+..
+
+.. bpo: 21223
+.. date: 8384
+.. nonce: lMY6ka
+.. section: Tests
+
+Pass test_site/test_startup_imports when some of the extensions are built as
+builtins.
+
+..
+
+.. bpo: 20635
+.. date: 8383
+.. nonce: mzWmoS
+.. section: Tests
+
+Added tests for Tk geometry managers.
+
+..
+
+.. bpo: 0
+.. date: 8382
+.. nonce: E5XNqr
+.. section: Tests
+
+Add test case for freeze.
+
+..
+
+.. bpo: 20743
+.. date: 8381
+.. nonce: hxZQUf
+.. section: Tests
+
+Fix a reference leak in test_tcl.
+
+..
+
+.. bpo: 21097
+.. date: 8380
+.. nonce: gsUesm
+.. section: Tests
+
+Move test_namespace_pkgs into test_importlib.
+
+..
+
+.. bpo: 21503
+.. date: 8379
+.. nonce: H9TPCg
+.. section: Tests
+
+Use test_both() consistently in test_importlib.
+
+..
+
+.. bpo: 20939
+.. date: 8378
+.. nonce: x3KQ35
+.. section: Tests
+
+Avoid various network test failures due to new redirect of
+http://www.python.org/ to https://www.python.org: use http://www.example.com
+instead.
+
+..
+
+.. bpo: 20668
+.. date: 8377
+.. nonce: IWjOSC
+.. section: Tests
+
+asyncio tests no longer rely on tests.txt file. (Patch by Vajrasky Kok)
+
+..
+
+.. bpo: 21093
+.. date: 8376
+.. nonce: CcpRim
+.. section: Tests
+
+Prevent failures of ctypes test_macholib on OS X if a copy of libz exists in
+$HOME/lib or /usr/local/lib.
+
+..
+
+.. bpo: 22770
+.. date: 8375
+.. nonce: FxAh91
+.. section: Tests
+
+Prevent some Tk segfaults on OS X when running gui tests.
+
+..
+
+.. bpo: 23211
+.. date: 8374
+.. nonce: Bc-QfJ
+.. section: Tests
+
+Workaround test_logging failure on some OS X 10.6 systems.
+
+..
+
+.. bpo: 23345
+.. date: 8373
+.. nonce: HIGBKx
+.. section: Tests
+
+Prevent test_ssl failures with large OpenSSL patch level values (like
+0.9.8zc).
+
+..
+
+.. bpo: 22314
+.. date: 8372
+.. nonce: ws6xsH
+.. section: Tools/Demos
+
+pydoc now works when the LINES environment variable is set.
+
+..
+
+.. bpo: 22615
+.. date: 8371
+.. nonce: My3DWN
+.. section: Tools/Demos
+
+Argument Clinic now supports the "type" argument for the int converter.
+This permits using the int converter with enums and typedefs.
+
+..
+
+.. bpo: 20076
+.. date: 8370
+.. nonce: ZNuBrC
+.. section: Tools/Demos
+
+The makelocalealias.py script no longer ignores UTF-8 mapping.
+
+..
+
+.. bpo: 20079
+.. date: 8369
+.. nonce: ogPXcK
+.. section: Tools/Demos
+
+The makelocalealias.py script now can parse the SUPPORTED file from glibc
+sources and supports command line options for source paths.
+
+..
+
+.. bpo: 22201
+.. date: 8368
+.. nonce: k1Awbh
+.. section: Tools/Demos
+
+Command-line interface of the zipfile module now correctly extracts ZIP
+files with directory entries. Patch by Ryan Wilson.
+
+..
+
+.. bpo: 22120
+.. date: 8367
+.. nonce: KmBUj-
+.. section: Tools/Demos
+
+For functions using an unsigned integer return converter, Argument Clinic
+now generates a cast to that type for the comparison to -1 in the generated
+code. (This suppresses a compilation warning.)
+
+..
+
+.. bpo: 18974
+.. date: 8366
+.. nonce: I3DdAo
+.. section: Tools/Demos
+
+Tools/scripts/diff.py now uses argparse instead of optparse.
+
+..
+
+.. bpo: 21906
+.. date: 8365
+.. nonce: ZsKy9v
+.. section: Tools/Demos
+
+Make Tools/scripts/md5sum.py work in Python 3. Patch by Zachary Ware.
+
+..
+
+.. bpo: 21629
+.. date: 8364
+.. nonce: 9kZmQl
+.. section: Tools/Demos
+
+Fix Argument Clinic's "--converters" feature.
+
+..
+
+.. bpo: 0
+.. date: 8363
+.. nonce: _-ge-g
+.. section: Tools/Demos
+
+Add support for ``yield from`` to 2to3.
+
+..
+
+.. bpo: 0
+.. date: 8362
+.. nonce: dpFbyZ
+.. section: Tools/Demos
+
+Add support for the :pep:`465` matrix multiplication operator to 2to3.
+
+..
+
+.. bpo: 16047
+.. date: 8361
+.. nonce: IsgTzm
+.. section: Tools/Demos
+
+Fix module exception list and __file__ handling in freeze. Patch by Meador
+Inge.
+
+..
+
+.. bpo: 11824
+.. date: 8360
+.. nonce: OBWc3T
+.. section: Tools/Demos
+
+Consider ABI tags in freeze. Patch by Meador Inge.
+
+..
+
+.. bpo: 20535
+.. date: 8359
+.. nonce: 0qkvZZ
+.. section: Tools/Demos
+
+PYTHONWARNING no longer affects the run_tests.py script. Patch by Arfrever
+Frehtes Taifersar Arahesis.
+
+..
+
+.. bpo: 23260
+.. date: 8358
+.. nonce: aZ5VLH
+.. section: Windows
+
+Update Windows installer
+
+..
+
+.. bpo: 0
+.. date: 8357
+.. nonce: _aEUNt
+.. section: Windows
+
+The bundled version of Tcl/Tk has been updated to 8.6.3. The most visible
+result of this change is the addition of new native file dialogs when
+running on Windows Vista or newer. See Tcl/Tk's TIP 432 for more
+information. Also, this version of Tcl/Tk includes support for Windows 10.
+
+..
+
+.. bpo: 17896
+.. date: 8356
+.. nonce: o79rHM
+.. section: Windows
+
+The Windows build scripts now expect external library sources to be in
+``PCbuild\..\externals`` rather than ``PCbuild\..\..``.
+
+..
+
+.. bpo: 17717
+.. date: 8355
+.. nonce: y1zoye
+.. section: Windows
+
+The Windows build scripts now use a copy of NASM pulled from svn.python.org
+to build OpenSSL.
+
+..
+
+.. bpo: 21907
+.. date: 8354
+.. nonce: jm1smN
+.. section: Windows
+
+Improved the batch scripts provided for building Python.
+
+..
+
+.. bpo: 22644
+.. date: 8353
+.. nonce: gosBki
+.. section: Windows
+
+The bundled version of OpenSSL has been updated to 1.0.1j.
+
+..
+
+.. bpo: 10747
+.. date: 8352
+.. nonce: LTWhLn
+.. section: Windows
+
+Use versioned labels in the Windows start menu. Patch by Olive Kilburn.
+
+..
+
+.. bpo: 22980
+.. date: 8351
+.. nonce: -UypE5
+.. section: Windows
+
+.pyd files with a version and platform tag (for example, ".cp35-win32.pyd")
+will now be loaded in preference to those without tags.
--- /dev/null
+.. bpo: 23571
+.. date: 8990
+.. nonce: GTkAkq
+.. release date: 2015-03-09
+.. section: Core and Builtins
+
+PyObject_Call() and PyCFunction_Call() now raise a SystemError if a function
+returns a result and raises an exception. The SystemError is chained to the
+previous exception.
+
+..
+
+.. bpo: 22524
+.. date: 8989
+.. nonce: Ks6_2x
+.. section: Library
+
+New os.scandir() function, part of the :pep:`471`: "os.scandir() function -- a
+better and faster directory iterator". Patch written by Ben Hoyt.
+
+..
+
+.. bpo: 23103
+.. date: 8988
+.. nonce: I3RLIV
+.. section: Library
+
+Reduced the memory consumption of IPv4Address and IPv6Address.
+
+..
+
+.. bpo: 21793
+.. date: 8987
+.. nonce: GQtYMM
+.. section: Library
+
+BaseHTTPRequestHandler again logs response code as numeric, not as
+stringified enum. Patch by Demian Brecht.
+
+..
+
+.. bpo: 23476
+.. date: 8986
+.. nonce: 82QV9I
+.. section: Library
+
+In the ssl module, enable OpenSSL's X509_V_FLAG_TRUSTED_FIRST flag on
+certificate stores when it is available.
+
+..
+
+.. bpo: 23576
+.. date: 8985
+.. nonce: 98F-PP
+.. section: Library
+
+Avoid stalling in SSL reads when EOF has been reached in the SSL layer but
+the underlying connection hasn't been closed.
+
+..
+
+.. bpo: 23504
+.. date: 8984
+.. nonce: o31h5I
+.. section: Library
+
+Added an __all__ to the types module.
+
+..
+
+.. bpo: 23563
+.. date: 8983
+.. nonce: iQB-ba
+.. section: Library
+
+Optimized utility functions in urllib.parse.
+
+..
+
+.. bpo: 7830
+.. date: 8982
+.. nonce: irvPdC
+.. section: Library
+
+Flatten nested functools.partial.
+
+..
+
+.. bpo: 20204
+.. date: 8981
+.. nonce: DorA4b
+.. section: Library
+
+Added the __module__ attribute to _tkinter classes.
+
+..
+
+.. bpo: 19980
+.. date: 8980
+.. nonce: whwzL_
+.. section: Library
+
+Improved help() for non-recognized strings. help('') now shows the help on
+str. help('help') now shows the help on help(). Original patch by Mark
+Lawrence.
+
+..
+
+.. bpo: 23521
+.. date: 8979
+.. nonce: HvwFfd
+.. section: Library
+
+Corrected pure python implementation of timedelta division.
+Eliminated OverflowError from ``timedelta * float`` for some floats;
+Corrected rounding in timedelta true division.
+
+..
+
+.. bpo: 21619
+.. date: 8978
+.. nonce: uL0SZh
+.. section: Library
+
+Popen objects no longer leave a zombie after exit in the with statement if
+the pipe was broken. Patch by Martin Panter.
+
+..
+
+.. bpo: 22936
+.. date: 8977
+.. nonce: JrhGYd
+.. section: Library
+
+Make it possible to show local variables in tracebacks for both the
+traceback module and unittest.
+
+..
+
+.. bpo: 15955
+.. date: 8976
+.. nonce: _8nYPy
+.. section: Library
+
+Add an option to limit the output size in bz2.decompress(). Patch by
+Nikolaus Rath.
+
+..
+
+.. bpo: 6639
+.. date: 8975
+.. nonce: rmjUmG
+.. section: Library
+
+Module-level turtle functions no longer raise TclError after closing the
+window.
+
+..
+
+.. bpo: 814253
+.. date: 8974
+.. nonce: icZb-I
+.. section: Library
+
+Group references and conditional group references now work in lookbehind
+assertions in regular expressions. (See also: bpo-9179)
+
+..
+
+.. bpo: 23215
+.. date: 8973
+.. nonce: VHVSVX
+.. section: Library
+
+Multibyte codecs with custom error handlers that ignores errors consumed too
+much memory and raised SystemError or MemoryError. Original patch by Aleksi
+Torhamo.
+
+..
+
+.. bpo: 5700
+.. date: 8972
+.. nonce: iA5yzL
+.. section: Library
+
+io.FileIO() called flush() after closing the file. flush() was not called in
+close() if closefd=False.
+
+..
+
+.. bpo: 23374
+.. date: 8971
+.. nonce: 8A9LuZ
+.. section: Library
+
+Fixed pydoc failure with non-ASCII files when stdout encoding differs from
+file system encoding (e.g. on Mac OS).
+
+..
+
+.. bpo: 23481
+.. date: 8970
+.. nonce: ZWwliG
+.. section: Library
+
+Remove RC4 from the SSL module's default cipher list.
+
+..
+
+.. bpo: 21548
+.. date: 8969
+.. nonce: CmO_Yh
+.. section: Library
+
+Fix pydoc.synopsis() and pydoc.apropos() on modules with empty docstrings.
+
+..
+
+.. bpo: 22885
+.. date: 8968
+.. nonce: p8FnYk
+.. section: Library
+
+Fixed arbitrary code execution vulnerability in the dbm.dumb module.
+Original patch by Claudiu Popa.
+
+..
+
+.. bpo: 23239
+.. date: 8967
+.. nonce: PGUq7T
+.. section: Library
+
+ssl.match_hostname() now supports matching of IP addresses.
+
+..
+
+.. bpo: 23146
+.. date: 8966
+.. nonce: PW-O3u
+.. section: Library
+
+Fix mishandling of absolute Windows paths with forward slashes in pathlib.
+
+..
+
+.. bpo: 23096
+.. date: 8965
+.. nonce: Ftrmf3
+.. section: Library
+
+Pickle representation of floats with protocol 0 now is the same for both
+Python and C implementations.
+
+..
+
+.. bpo: 19105
+.. date: 8964
+.. nonce: ZK07Ff
+.. section: Library
+
+pprint now more efficiently uses free space at the right.
+
+..
+
+.. bpo: 14910
+.. date: 8963
+.. nonce: zueIhP
+.. section: Library
+
+Add allow_abbrev parameter to argparse.ArgumentParser. Patch by Jonathan
+Paugh, Steven Bethard, paul j3 and Daniel Eriksson.
+
+..
+
+.. bpo: 21717
+.. date: 8962
+.. nonce: Knut81
+.. section: Library
+
+tarfile.open() now supports 'x' (exclusive creation) mode.
+
+..
+
+.. bpo: 23344
+.. date: 8961
+.. nonce: ieu8C1
+.. section: Library
+
+marshal.dumps() is now 20-25% faster on average.
+
+..
+
+.. bpo: 20416
+.. date: 8960
+.. nonce: cwEgkL
+.. section: Library
+
+marshal.dumps() with protocols 3 and 4 is now 40-50% faster on average.
+
+..
+
+.. bpo: 23421
+.. date: 8959
+.. nonce: eckzoV
+.. section: Library
+
+Fixed compression in tarfile CLI. Patch by wdv4758h.
+
+..
+
+.. bpo: 23367
+.. date: 8958
+.. nonce: kHnFiz
+.. section: Library
+
+Fix possible overflows in the unicodedata module.
+
+..
+
+.. bpo: 23361
+.. date: 8957
+.. nonce: I_w0-z
+.. section: Library
+
+Fix possible overflow in Windows subprocess creation code.
+
+..
+
+.. bpo: 0
+.. date: 8956
+.. nonce: sfmjTs
+.. section: Library
+
+logging.handlers.QueueListener now takes a respect_handler_level keyword
+argument which, if set to True, will pass messages to handlers taking
+handler levels into account.
+
+..
+
+.. bpo: 19705
+.. date: 8955
+.. nonce: WLzTRV
+.. section: Library
+
+turtledemo now has a visual sorting algorithm demo. Original patch from
+Jason Yeo.
+
+..
+
+.. bpo: 23801
+.. date: 8954
+.. nonce: jyJK3z
+.. section: Library
+
+Fix issue where cgi.FieldStorage did not always ignore the entire preamble
+to a multipart body.
+
+..
+
+.. bpo: 23445
+.. date: 8953
+.. nonce: 7fmkYO
+.. section: Build
+
+pydebug builds now use "gcc -Og" where possible, to make the resulting
+executable faster.
+
+..
+
+.. bpo: 23686
+.. date: 8952
+.. nonce: B7jDXY
+.. section: Build
+
+Update OS X 10.5 installer build to use OpenSSL 1.0.2a.
+
+..
+
+.. bpo: 20204
+.. date: 8951
+.. nonce: M_jcNK
+.. section: C API
+
+Deprecation warning is now raised for builtin types without the __module__
+attribute.
+
+..
+
+.. bpo: 23465
+.. date: 8950
+.. nonce: qBauCy
+.. section: Windows
+
+Implement :pep:`486` - Make the Python Launcher aware of virtual environments.
+Patch by Paul Moore.
+
+..
+
+.. bpo: 23437
+.. date: 8949
+.. nonce: ro9X8r
+.. section: Windows
+
+Make user scripts directory versioned on Windows. Patch by Paul Moore.
--- /dev/null
+.. bpo: 23573
+.. date: 9042
+.. nonce: ZpM4D-
+.. release date: 2015-03-28
+.. section: Core and Builtins
+
+Increased performance of string search operations (str.find, str.index,
+str.count, the in operator, str.split, str.partition) with arguments of
+different kinds (UCS1, UCS2, UCS4).
+
+..
+
+.. bpo: 23753
+.. date: 9041
+.. nonce: CREjLC
+.. section: Core and Builtins
+
+Python doesn't support anymore platforms without stat() or fstat(), these
+functions are always required.
+
+..
+
+.. bpo: 23681
+.. date: 9040
+.. nonce: kh02TF
+.. section: Core and Builtins
+
+The -b option now affects comparisons of bytes with int.
+
+..
+
+.. bpo: 23632
+.. date: 9039
+.. nonce: UVdIZY
+.. section: Core and Builtins
+
+Memoryviews now allow tuple indexing (including for multi-dimensional
+memoryviews).
+
+..
+
+.. bpo: 23192
+.. date: 9038
+.. nonce: QKqdow
+.. section: Core and Builtins
+
+Fixed generator lambdas. Patch by Bruno Cauet.
+
+..
+
+.. bpo: 23629
+.. date: 9037
+.. nonce: r9Mt2C
+.. section: Core and Builtins
+
+Fix the default __sizeof__ implementation for variable-sized objects.
+
+..
+
+.. bpo: 14260
+.. date: 9036
+.. nonce: b5M04V
+.. section: Library
+
+The groupindex attribute of regular expression pattern object now is
+non-modifiable mapping.
+
+..
+
+.. bpo: 23792
+.. date: 9035
+.. nonce: Kfm9-f
+.. section: Library
+
+Ignore KeyboardInterrupt when the pydoc pager is active. This mimics the
+behavior of the standard unix pagers, and prevents pipepager from shutting
+down while the pager itself is still running.
+
+..
+
+.. bpo: 23775
+.. date: 9034
+.. nonce: xKGrSQ
+.. section: Library
+
+pprint() of OrderedDict now outputs the same representation as repr().
+
+..
+
+.. bpo: 23765
+.. date: 9033
+.. nonce: 2ta_C4
+.. section: Library
+
+Removed IsBadStringPtr calls in ctypes
+
+..
+
+.. bpo: 22364
+.. date: 9032
+.. nonce: ejtoKl
+.. section: Library
+
+Improved some re error messages using regex for hints.
+
+..
+
+.. bpo: 23742
+.. date: 9031
+.. nonce: _EkAIa
+.. section: Library
+
+ntpath.expandvars() no longer loses unbalanced single quotes.
+
+..
+
+.. bpo: 21717
+.. date: 9030
+.. nonce: pKndpx
+.. section: Library
+
+The zipfile.ZipFile.open function now supports 'x' (exclusive creation)
+mode.
+
+..
+
+.. bpo: 21802
+.. date: 9029
+.. nonce: ygSM2A
+.. section: Library
+
+The reader in BufferedRWPair now is closed even when closing writer failed
+in BufferedRWPair.close().
+
+..
+
+.. bpo: 23622
+.. date: 9028
+.. nonce: 9-ZRqj
+.. section: Library
+
+Unknown escapes in regular expressions that consist of ``'\'`` and ASCII
+letter now raise a deprecation warning and will be forbidden in Python 3.6.
+
+..
+
+.. bpo: 23671
+.. date: 9027
+.. nonce: zWPm-a
+.. section: Library
+
+string.Template now allows specifying the "self" parameter as a keyword
+argument. string.Formatter now allows specifying the "self" and the
+"format_string" parameters as keyword arguments.
+
+..
+
+.. bpo: 23502
+.. date: 9026
+.. nonce: AH20IQ
+.. section: Library
+
+The pprint module now supports mapping proxies.
+
+..
+
+.. bpo: 17530
+.. date: 9025
+.. nonce: PUp8rL
+.. section: Library
+
+pprint now wraps long bytes objects and bytearrays.
+
+..
+
+.. bpo: 22687
+.. date: 9024
+.. nonce: zEJPd9
+.. section: Library
+
+Fixed some corner cases in breaking words in tetxtwrap. Got rid of quadratic
+complexity in breaking long words.
+
+..
+
+.. bpo: 4727
+.. date: 9023
+.. nonce: iDQSpi
+.. section: Library
+
+The copy module now uses pickle protocol 4 (PEP 3154) and supports copying
+of instances of classes whose __new__ method takes keyword-only arguments.
+
+..
+
+.. bpo: 23491
+.. date: 9022
+.. nonce: P_WKrt
+.. section: Library
+
+Added a zipapp module to support creating executable zip file archives of
+Python code. Registered ".pyz" and ".pyzw" extensions on Windows for these
+archives (PEP 441).
+
+..
+
+.. bpo: 23657
+.. date: 9021
+.. nonce: y1OaV-
+.. section: Library
+
+Avoid explicit checks for str in zipapp, adding support for pathlib.Path
+objects as arguments.
+
+..
+
+.. bpo: 23688
+.. date: 9020
+.. nonce: d6LVy3
+.. section: Library
+
+Added support of arbitrary bytes-like objects and avoided unnecessary
+copying of memoryview in gzip.GzipFile.write(). Original patch by Wolfgang
+Maier.
+
+..
+
+.. bpo: 23252
+.. date: 9019
+.. nonce: Goi18g
+.. section: Library
+
+Added support for writing ZIP files to unseekable streams.
+
+..
+
+.. bpo: 23647
+.. date: 9018
+.. nonce: pX2qrx
+.. section: Library
+
+Increase imaplib's MAXLINE to accommodate modern mailbox sizes.
+
+..
+
+.. bpo: 23539
+.. date: 9017
+.. nonce: 5BVUim
+.. section: Library
+
+If body is None, http.client.HTTPConnection.request now sets Content-Length
+to 0 for PUT, POST, and PATCH headers to avoid 411 errors from some web
+servers.
+
+..
+
+.. bpo: 22351
+.. date: 9016
+.. nonce: agB8Y3
+.. section: Library
+
+The nntplib.NNTP constructor no longer leaves the connection and socket open
+until the garbage collector cleans them up. Patch by Martin Panter.
+
+..
+
+.. bpo: 23704
+.. date: 9015
+.. nonce: LTyyxL
+.. section: Library
+
+collections.deque() objects now support methods for index(), insert(), and
+copy(). This allows deques to be registered as a MutableSequence and it
+improves their substitutability for lists.
+
+..
+
+.. bpo: 23715
+.. date: 9014
+.. nonce: Yap3tU
+.. section: Library
+
+:func:`signal.sigwaitinfo` and :func:`signal.sigtimedwait` are now retried
+when interrupted by a signal not in the *sigset* parameter, if the signal
+handler does not raise an exception. signal.sigtimedwait() recomputes the
+timeout with a monotonic clock when it is retried.
+
+..
+
+.. bpo: 23001
+.. date: 9013
+.. nonce: YSFnam
+.. section: Library
+
+Few functions in modules mmap, ossaudiodev, socket, ssl, and codecs, that
+accepted only read-only bytes-like object now accept writable bytes-like
+object too.
+
+..
+
+.. bpo: 23646
+.. date: 9012
+.. nonce: Tljc1S
+.. section: Library
+
+If time.sleep() is interrupted by a signal, the sleep is now retried with
+the recomputed delay, except if the signal handler raises an exception (PEP
+475).
+
+..
+
+.. bpo: 23136
+.. date: 9011
+.. nonce: 1bnpnb
+.. section: Library
+
+_strptime now uniformly handles all days in week 0, including Dec 30 of
+previous year. Based on patch by Jim Carroll.
+
+..
+
+.. bpo: 23700
+.. date: 9010
+.. nonce: VfnWwi
+.. section: Library
+
+Iterator of NamedTemporaryFile now keeps a reference to NamedTemporaryFile
+instance. Patch by Bohuslav Kabrda.
+
+..
+
+.. bpo: 22903
+.. date: 9009
+.. nonce: 2GjTHY
+.. section: Library
+
+The fake test case created by unittest.loader when it fails importing a test
+module is now picklable.
+
+..
+
+.. bpo: 22181
+.. date: 9008
+.. nonce: 7mnxea
+.. section: Library
+
+On Linux, os.urandom() now uses the new getrandom() syscall if available,
+syscall introduced in the Linux kernel 3.17. It is more reliable and more
+secure, because it avoids the need of a file descriptor and waits until the
+kernel has enough entropy.
+
+..
+
+.. bpo: 2211
+.. date: 9007
+.. nonce: 17Iz5U
+.. section: Library
+
+Updated the implementation of the http.cookies.Morsel class. Setting
+attributes key, value and coded_value directly now is deprecated. update()
+and setdefault() now transform and check keys. Comparing for equality now
+takes into account attributes key, value and coded_value. copy() now returns
+a Morsel, not a dict. repr() now contains all attributes. Optimized
+checking keys and quoting values. Added new tests. Original patch by Demian
+Brecht.
+
+..
+
+.. bpo: 18983
+.. date: 9006
+.. nonce: vF4i2S
+.. section: Library
+
+Allow selection of output units in timeit. Patch by Julian Gindi.
+
+..
+
+.. bpo: 23631
+.. date: 9005
+.. nonce: GfSqNI
+.. section: Library
+
+Fix traceback.format_list when a traceback has been mutated.
+
+..
+
+.. bpo: 23568
+.. date: 9004
+.. nonce: ffzJc7
+.. section: Library
+
+Add rdivmod support to MagicMock() objects. Patch by Håkan Lövdahl.
+
+..
+
+.. bpo: 2052
+.. date: 9003
+.. nonce: ujNgna
+.. section: Library
+
+Add charset parameter to HtmlDiff.make_file().
+
+..
+
+.. bpo: 23668
+.. date: 9002
+.. nonce: nF_jnN
+.. section: Library
+
+Support os.truncate and os.ftruncate on Windows.
+
+..
+
+.. bpo: 23138
+.. date: 9001
+.. nonce: 4vMoMZ
+.. section: Library
+
+Fixed parsing cookies with absent keys or values in cookiejar. Patch by
+Demian Brecht.
+
+..
+
+.. bpo: 23051
+.. date: 9000
+.. nonce: Vi5tCZ
+.. section: Library
+
+multiprocessing.Pool methods imap() and imap_unordered() now handle
+exceptions raised by an iterator. Patch by Alon Diamant and Davin Potts.
+
+..
+
+.. bpo: 23581
+.. date: 8999
+.. nonce: D4Lknl
+.. section: Library
+
+Add matmul support to MagicMock. Patch by Håkan Lövdahl.
+
+..
+
+.. bpo: 23566
+.. date: 8998
+.. nonce: F6LSyk
+.. section: Library
+
+enable(), register(), dump_traceback() and dump_traceback_later() functions
+of faulthandler now accept file descriptors. Patch by Wei Wu.
+
+..
+
+.. bpo: 22928
+.. date: 8997
+.. nonce: q2TmY0
+.. section: Library
+
+Disabled HTTP header injections in http.client. Original patch by Demian
+Brecht.
+
+..
+
+.. bpo: 23615
+.. date: 8996
+.. nonce: 5Kx9k5
+.. section: Library
+
+Modules bz2, tarfile and tokenize now can be reloaded with imp.reload().
+Patch by Thomas Kluyver.
+
+..
+
+.. bpo: 23605
+.. date: 8995
+.. nonce: JUOA_X
+.. section: Library
+
+os.walk() now calls os.scandir() instead of os.listdir(). The usage of
+os.scandir() reduces the number of calls to os.stat(). Initial patch written
+by Ben Hoyt.
+
+..
+
+.. bpo: 23585
+.. date: 8994
+.. nonce: DTIIoI
+.. section: Build
+
+make patchcheck will ensure the interpreter is built.
+
+..
+
+.. bpo: 23583
+.. date: 8993
+.. nonce: bY8AbM
+.. section: Tests
+
+Added tests for standard IO streams in IDLE.
+
+..
+
+.. bpo: 22289
+.. date: 8992
+.. nonce: ybGcC-
+.. section: Tests
+
+Prevent test_urllib2net failures due to ftp connection timeout.
+
+..
+
+.. bpo: 22826
+.. date: 8991
+.. nonce: 3bcoDL
+.. section: Tools/Demos
+
+The result of open() in Tools/freeze/bkfile.py is now better compatible with
+regular files (in particular it now supports the context management
+protocol).
--- /dev/null
+.. bpo: 22980
+.. date: 9109
+.. nonce: Lu_y6y
+.. release date: 2015-04-19
+.. section: Core and Builtins
+
+Under Linux, GNU/KFreeBSD and the Hurd, C extensions now include the
+architecture triplet in the extension name, to make it easy to test builds
+for different ABIs in the same working tree. Under OS X, the extension name
+now includes :pep:`3149`-style information.
+
+..
+
+.. bpo: 22631
+.. date: 9108
+.. nonce: nTx_ZF
+.. section: Core and Builtins
+
+Added Linux-specific socket constant CAN_RAW_FD_FRAMES. Patch courtesy of
+Joe Jevnik.
+
+..
+
+.. bpo: 23731
+.. date: 9107
+.. nonce: FOXb37
+.. section: Core and Builtins
+
+Implement :pep:`488`: removal of .pyo files.
+
+..
+
+.. bpo: 23726
+.. date: 9106
+.. nonce: ZopTQ0
+.. section: Core and Builtins
+
+Don't enable GC for user subclasses of non-GC types that don't add any new
+fields. Patch by Eugene Toder.
+
+..
+
+.. bpo: 23309
+.. date: 9105
+.. nonce: Wfnsnz
+.. section: Core and Builtins
+
+Avoid a deadlock at shutdown if a daemon thread is aborted while it is
+holding a lock to a buffered I/O object, and the main thread tries to use
+the same I/O object (typically stdout or stderr). A fatal error is emitted
+instead.
+
+..
+
+.. bpo: 22977
+.. date: 9104
+.. nonce: hutEse
+.. section: Core and Builtins
+
+Fixed formatting Windows error messages on Wine. Patch by Martin Panter.
+
+..
+
+.. bpo: 23466
+.. date: 9103
+.. nonce: KhMltK
+.. section: Core and Builtins
+
+%c, %o, %x, and %X in bytes formatting now raise TypeError on non-integer
+input.
+
+..
+
+.. bpo: 24044
+.. date: 9102
+.. nonce: H7vb6-
+.. section: Core and Builtins
+
+Fix possible null pointer dereference in list.sort in out of memory
+conditions.
+
+..
+
+.. bpo: 21354
+.. date: 9101
+.. nonce: ZZTe1E
+.. section: Core and Builtins
+
+PyCFunction_New function is exposed by python DLL again.
+
+..
+
+.. bpo: 23840
+.. date: 9100
+.. nonce: mtSbqO
+.. section: Library
+
+tokenize.open() now closes the temporary binary file on error to fix a
+resource warning.
+
+..
+
+.. bpo: 16914
+.. date: 9099
+.. nonce: GrP2Jr
+.. section: Library
+
+new debuglevel 2 in smtplib adds timestamps to debug output.
+
+..
+
+.. bpo: 7159
+.. date: 9098
+.. nonce: KCgOUm
+.. section: Library
+
+urllib.request now supports sending auth credentials automatically after the
+first 401. This enhancement is a superset of the enhancement from issue
+#19494 and supersedes that change.
+
+..
+
+.. bpo: 23703
+.. date: 9097
+.. nonce: kYybxm
+.. section: Library
+
+Fix a regression in urljoin() introduced in 901e4e52b20a. Patch by Demian
+Brecht.
+
+..
+
+.. bpo: 4254
+.. date: 9096
+.. nonce: eUC_2H
+.. section: Library
+
+Adds _curses.update_lines_cols(). Patch by Arnon Yaari
+
+..
+
+.. bpo: 19933
+.. date: 9095
+.. nonce: Qq8utk
+.. section: Library
+
+Provide default argument for ndigits in round. Patch by Vajrasky Kok.
+
+..
+
+.. bpo: 23193
+.. date: 9094
+.. nonce: n5ahcG
+.. section: Library
+
+Add a numeric_owner parameter to tarfile.TarFile.extract and
+tarfile.TarFile.extractall. Patch by Michael Vogt and Eric Smith.
+
+..
+
+.. bpo: 23342
+.. date: 9093
+.. nonce: CbSzYI
+.. section: Library
+
+Add a subprocess.run() function than returns a CalledProcess instance for a
+more consistent API than the existing call* functions.
+
+..
+
+.. bpo: 21217
+.. date: 9092
+.. nonce: TkFTlk
+.. section: Library
+
+inspect.getsourcelines() now tries to compute the start and end lines from
+the code object, fixing an issue when a lambda function is used as decorator
+argument. Patch by Thomas Ballinger and Allison Kaptur.
+
+..
+
+.. bpo: 24521
+.. date: 9091
+.. nonce: bn4U-y
+.. section: Library
+
+Fix possible integer overflows in the pickle module.
+
+..
+
+.. bpo: 22931
+.. date: 9090
+.. nonce: 4CuWYD
+.. section: Library
+
+Allow '[' and ']' in cookie values.
+
+..
+
+.. bpo: 0
+.. date: 9089
+.. nonce: fgX8Qe
+.. section: Library
+
+The keywords attribute of functools.partial is now always a dictionary.
+
+..
+
+.. bpo: 23811
+.. date: 9088
+.. nonce: B6tzf9
+.. section: Library
+
+Add missing newline to the PyCompileError error message. Patch by Alex
+Shkop.
+
+..
+
+.. bpo: 21116
+.. date: 9087
+.. nonce: Orft3K
+.. section: Library
+
+Avoid blowing memory when allocating a multiprocessing shared array that's
+larger than 50% of the available RAM. Patch by Médéric Boquien.
+
+..
+
+.. bpo: 22982
+.. date: 9086
+.. nonce: xYmG62
+.. section: Library
+
+Improve BOM handling when seeking to multiple positions of a writable text
+file.
+
+..
+
+.. bpo: 23464
+.. date: 9085
+.. nonce: _XGkBk
+.. section: Library
+
+Removed deprecated asyncio JoinableQueue.
+
+..
+
+.. bpo: 23529
+.. date: 9084
+.. nonce: Hr7AHH
+.. section: Library
+
+Limit the size of decompressed data when reading from GzipFile, BZ2File or
+LZMAFile. This defeats denial of service attacks using compressed bombs
+(i.e. compressed payloads which decompress to a huge size). Patch by Martin
+Panter and Nikolaus Rath.
+
+..
+
+.. bpo: 21859
+.. date: 9083
+.. nonce: GYrUNP
+.. section: Library
+
+Added Python implementation of io.FileIO.
+
+..
+
+.. bpo: 23865
+.. date: 9082
+.. nonce: PtSLgU
+.. section: Library
+
+close() methods in multiple modules now are idempotent and more robust at
+shutdown. If they need to release multiple resources, all are released even
+if errors occur.
+
+..
+
+.. bpo: 23400
+.. date: 9081
+.. nonce: JSh9Z3
+.. section: Library
+
+Raise same exception on both Python 2 and 3 if sem_open is not available.
+Patch by Davin Potts.
+
+..
+
+.. bpo: 10838
+.. date: 9080
+.. nonce: p9tSPC
+.. section: Library
+
+The subprocess now module includes SubprocessError and TimeoutError in its
+list of exported names for the users wild enough to use ``from subprocess
+import *``.
+
+..
+
+.. bpo: 23411
+.. date: 9079
+.. nonce: 0im3Qw
+.. section: Library
+
+Added DefragResult, ParseResult, SplitResult, DefragResultBytes,
+ParseResultBytes, and SplitResultBytes to urllib.parse.__all__. Patch by
+Martin Panter.
+
+..
+
+.. bpo: 23881
+.. date: 9078
+.. nonce: yZjl4b
+.. section: Library
+
+urllib.request.ftpwrapper constructor now closes the socket if the FTP
+connection failed to fix a ResourceWarning.
+
+..
+
+.. bpo: 23853
+.. date: 9077
+.. nonce: mNY1eI
+.. section: Library
+
+:meth:`socket.socket.sendall` does no more reset the socket timeout each
+time data is sent successfully. The socket timeout is now the maximum total
+duration to send all data.
+
+..
+
+.. bpo: 22721
+.. date: 9076
+.. nonce: MVfBL9
+.. section: Library
+
+An order of multiline pprint output of set or dict containing orderable and
+non-orderable elements no longer depends on iteration order of set or dict.
+
+..
+
+.. bpo: 15133
+.. date: 9075
+.. nonce: C0QfV8
+.. section: Library
+
+_tkinter.tkapp.getboolean() now supports Tcl_Obj and always returns bool.
+tkinter.BooleanVar now validates input values (accepted bool, int, str, and
+Tcl_Obj). tkinter.BooleanVar.get() now always returns bool.
+
+..
+
+.. bpo: 10590
+.. date: 9074
+.. nonce: nkxXfU
+.. section: Library
+
+xml.sax.parseString() now supports string argument.
+
+..
+
+.. bpo: 23338
+.. date: 9073
+.. nonce: ZYMGN1
+.. section: Library
+
+Fixed formatting ctypes error messages on Cygwin. Patch by Makoto Kato.
+
+..
+
+.. bpo: 15582
+.. date: 9072
+.. nonce: 26wJNk
+.. section: Library
+
+inspect.getdoc() now follows inheritance chains.
+
+..
+
+.. bpo: 2175
+.. date: 9071
+.. nonce: cHiVOp
+.. section: Library
+
+SAX parsers now support a character stream of InputSource object.
+
+..
+
+.. bpo: 16840
+.. date: 9070
+.. nonce: kKIhPm
+.. section: Library
+
+Tkinter now supports 64-bit integers added in Tcl 8.4 and arbitrary
+precision integers added in Tcl 8.5.
+
+..
+
+.. bpo: 23834
+.. date: 9069
+.. nonce: fX3TF4
+.. section: Library
+
+Fix socket.sendto(), use the C Py_ssize_t type to store the result of
+sendto() instead of the C int type.
+
+..
+
+.. bpo: 23618
+.. date: 9068
+.. nonce: Of_q5t
+.. section: Library
+
+:meth:`socket.socket.connect` now waits until the connection completes
+instead of raising :exc:`InterruptedError` if the connection is interrupted
+by signals, signal handlers don't raise an exception and the socket is
+blocking or has a timeout. :meth:`socket.socket.connect` still raise
+:exc:`InterruptedError` for non-blocking sockets.
+
+..
+
+.. bpo: 21526
+.. date: 9067
+.. nonce: QQEXrR
+.. section: Library
+
+Tkinter now supports new boolean type in Tcl 8.5.
+
+..
+
+.. bpo: 23836
+.. date: 9066
+.. nonce: zrEmlR
+.. section: Library
+
+Fix the faulthandler module to handle reentrant calls to its signal
+handlers.
+
+..
+
+.. bpo: 23838
+.. date: 9065
+.. nonce: IX6FPX
+.. section: Library
+
+linecache now clears the cache and returns an empty result on MemoryError.
+
+..
+
+.. bpo: 10395
+.. date: 9064
+.. nonce: fi_lZp
+.. section: Library
+
+Added os.path.commonpath(). Implemented in posixpath and ntpath. Based on
+patch by Rafik Draoui.
+
+..
+
+.. bpo: 23611
+.. date: 9063
+.. nonce: QkBJVB
+.. section: Library
+
+Serializing more "lookupable" objects (such as unbound methods or nested
+classes) now are supported with pickle protocols < 4.
+
+..
+
+.. bpo: 13583
+.. date: 9062
+.. nonce: -MPBjZ
+.. section: Library
+
+sqlite3.Row now supports slice indexing.
+
+..
+
+.. bpo: 18473
+.. date: 9061
+.. nonce: 89RHm-
+.. section: Library
+
+Fixed 2to3 and 3to2 compatible pickle mappings. Fixed ambiguous reverse
+mappings. Added many new mappings. Import mapping is no longer applied to
+modules already mapped with full name mapping.
+
+..
+
+.. bpo: 23485
+.. date: 9060
+.. nonce: kQWN6L
+.. section: Library
+
+select.select() is now retried automatically with the recomputed timeout
+when interrupted by a signal, except if the signal handler raises an
+exception. This change is part of the :pep:`475`.
+
+..
+
+.. bpo: 23752
+.. date: 9059
+.. nonce: 5fbVNb
+.. section: Library
+
+When built from an existing file descriptor, io.FileIO() now only calls
+fstat() once. Before fstat() was called twice, which was not necessary.
+
+..
+
+.. bpo: 23704
+.. date: 9058
+.. nonce: Ggjvm8
+.. section: Library
+
+collections.deque() objects now support __add__, __mul__, and __imul__().
+
+..
+
+.. bpo: 23171
+.. date: 9057
+.. nonce: b6PBzM
+.. section: Library
+
+csv.Writer.writerow() now supports arbitrary iterables.
+
+..
+
+.. bpo: 23745
+.. date: 9056
+.. nonce: E00Bml
+.. section: Library
+
+The new email header parser now handles duplicate MIME parameter names
+without error, similar to how get_param behaves.
+
+..
+
+.. bpo: 22117
+.. date: 9055
+.. nonce: bTO0xx
+.. section: Library
+
+Fix os.utime(), it now rounds the timestamp towards minus infinity (-inf)
+instead of rounding towards zero.
+
+..
+
+.. bpo: 23310
+.. date: 9054
+.. nonce: GXmFMR
+.. section: Library
+
+Fix MagicMock's initializer to work with __methods__, just like
+configure_mock(). Patch by Kasia Jachim.
+
+..
+
+.. bpo: 23817
+.. date: 9053
+.. nonce: DTmVan
+.. section: Build
+
+FreeBSD now uses "1.0" in the SOVERSION as other operating systems, instead
+of just "1".
+
+..
+
+.. bpo: 23501
+.. date: 9052
+.. nonce: iz10e6
+.. section: Build
+
+Argument Clinic now generates code into separate files by default.
+
+..
+
+.. bpo: 23799
+.. date: 9051
+.. nonce: XU2xDw
+.. section: Tests
+
+Added test.support.start_threads() for running and cleaning up multiple
+threads.
+
+..
+
+.. bpo: 22390
+.. date: 9050
+.. nonce: UPVFnq
+.. section: Tests
+
+test.regrtest now emits a warning if temporary files or directories are left
+after running a test.
+
+..
+
+.. bpo: 18128
+.. date: 9049
+.. nonce: lx2V5a
+.. section: Tools/Demos
+
+pygettext now uses standard +NNNN format in the POT-Creation-Date header.
+
+..
+
+.. bpo: 23935
+.. date: 9048
+.. nonce: JSYowT
+.. section: Tools/Demos
+
+Argument Clinic's understanding of format units accepting bytes, bytearrays,
+and buffers is now consistent with both the documentation and the
+implementation.
+
+..
+
+.. bpo: 23944
+.. date: 9047
+.. nonce: Q8ZL2s
+.. section: Tools/Demos
+
+Argument Clinic now wraps long impl prototypes at column 78.
+
+..
+
+.. bpo: 20586
+.. date: 9046
+.. nonce: 7BiEkx
+.. section: Tools/Demos
+
+Argument Clinic now ensures that functions without docstrings have
+signatures.
+
+..
+
+.. bpo: 23492
+.. date: 9045
+.. nonce: kjIcQW
+.. section: Tools/Demos
+
+Argument Clinic now generates argument parsing code with PyArg_Parse instead
+of PyArg_ParseTuple if possible.
+
+..
+
+.. bpo: 23500
+.. date: 9044
+.. nonce: H6_dX_
+.. section: Tools/Demos
+
+Argument Clinic is now smarter about generating the "#ifndef" (empty)
+definition of the methoddef macro: it's only generated once, even if
+Argument Clinic processes the same symbol multiple times, and it's emitted
+at the end of all processing rather than immediately after the first use.
+
+..
+
+.. bpo: 23998
+.. date: 9043
+.. nonce: z7mlLW
+.. section: C API
+
+PyImport_ReInitLock() now checks for lock allocation error
--- /dev/null
+.. bpo: 24276
+.. date: 9197
+.. nonce: awsxJJ
+.. release date: 2015-05-24
+.. section: Core and Builtins
+
+Fixed optimization of property descriptor getter.
+
+..
+
+.. bpo: 24268
+.. date: 9196
+.. nonce: nS7uea
+.. section: Core and Builtins
+
+PEP 489: Multi-phase extension module initialization. Patch by Petr
+Viktorin.
+
+..
+
+.. bpo: 23955
+.. date: 9195
+.. nonce: hBHSaU
+.. section: Core and Builtins
+
+Add pyvenv.cfg option to suppress registry/environment lookup for generating
+sys.path on Windows.
+
+..
+
+.. bpo: 24257
+.. date: 9194
+.. nonce: UBxshR
+.. section: Core and Builtins
+
+Fixed system error in the comparison of faked types.SimpleNamespace.
+
+..
+
+.. bpo: 22939
+.. date: 9193
+.. nonce: DWA9ls
+.. section: Core and Builtins
+
+Fixed integer overflow in iterator object. Patch by Clement Rouault.
+
+..
+
+.. bpo: 23985
+.. date: 9192
+.. nonce: eezPxO
+.. section: Core and Builtins
+
+Fix a possible buffer overrun when deleting a slice from the front of a
+bytearray and then appending some other bytes data.
+
+..
+
+.. bpo: 24102
+.. date: 9191
+.. nonce: 9T6h3m
+.. section: Core and Builtins
+
+Fixed exception type checking in standard error handlers.
+
+..
+
+.. bpo: 15027
+.. date: 9190
+.. nonce: wi9sCd
+.. section: Core and Builtins
+
+The UTF-32 encoder is now 3x to 7x faster.
+
+..
+
+.. bpo: 23290
+.. date: 9189
+.. nonce: 57aqLU
+.. section: Core and Builtins
+
+Optimize set_merge() for cases where the target is empty. (Contributed by
+Serhiy Storchaka.)
+
+..
+
+.. bpo: 2292
+.. date: 9188
+.. nonce: h4sibO
+.. section: Core and Builtins
+
+PEP 448: Additional Unpacking Generalizations.
+
+..
+
+.. bpo: 24096
+.. date: 9187
+.. nonce: a_Rap7
+.. section: Core and Builtins
+
+Make warnings.warn_explicit more robust against mutation of the
+warnings.filters list.
+
+..
+
+.. bpo: 23996
+.. date: 9186
+.. nonce: znqcT8
+.. section: Core and Builtins
+
+Avoid a crash when a delegated generator raises an unnormalized
+StopIteration exception. Patch by Stefan Behnel.
+
+..
+
+.. bpo: 23910
+.. date: 9185
+.. nonce: _gDzaj
+.. section: Core and Builtins
+
+Optimize property() getter calls. Patch by Joe Jevnik.
+
+..
+
+.. bpo: 23911
+.. date: 9184
+.. nonce: 0FnTHk
+.. section: Core and Builtins
+
+Move path-based importlib bootstrap code to a separate frozen module.
+
+..
+
+.. bpo: 24192
+.. date: 9183
+.. nonce: 6ZxJ_R
+.. section: Core and Builtins
+
+Fix namespace package imports.
+
+..
+
+.. bpo: 24022
+.. date: 9182
+.. nonce: 1l8YBm
+.. section: Core and Builtins
+
+Fix tokenizer crash when processing undecodable source code.
+
+..
+
+.. bpo: 9951
+.. date: 9181
+.. nonce: wGztNC
+.. section: Core and Builtins
+
+Added a hex() method to bytes, bytearray, and memoryview.
+
+..
+
+.. bpo: 22906
+.. date: 9180
+.. nonce: WN_kQ6
+.. section: Core and Builtins
+
+PEP 479: Change StopIteration handling inside generators.
+
+..
+
+.. bpo: 24017
+.. date: 9179
+.. nonce: QJa1SC
+.. section: Core and Builtins
+
+PEP 492: Coroutines with async and await syntax.
+
+..
+
+.. bpo: 14373
+.. date: 9178
+.. nonce: 0sk6kE
+.. section: Library
+
+Added C implementation of functools.lru_cache(). Based on patches by Matt
+Joiner and Alexey Kachayev.
+
+..
+
+.. bpo: 24230
+.. date: 9177
+.. nonce: b-kgme
+.. section: Library
+
+The tempfile module now accepts bytes for prefix, suffix and dir parameters
+and returns bytes in such situations (matching the os module APIs).
+
+..
+
+.. bpo: 22189
+.. date: 9176
+.. nonce: 8epgat
+.. section: Library
+
+collections.UserString now supports __getnewargs__(), __rmod__(),
+casefold(), format_map(), isprintable(), and maketrans(). Patch by Joe
+Jevnik.
+
+..
+
+.. bpo: 24244
+.. date: 9175
+.. nonce: OKE_3R
+.. section: Library
+
+Prevents termination when an invalid format string is encountered on Windows
+in strftime.
+
+..
+
+.. bpo: 23973
+.. date: 9174
+.. nonce: EK6awi
+.. section: Library
+
+PEP 484: Add the typing module.
+
+..
+
+.. bpo: 23086
+.. date: 9173
+.. nonce: Aix6Nv
+.. section: Library
+
+The collections.abc.Sequence() abstract base class added *start* and *stop*
+parameters to the index() mixin. Patch by Devin Jeanpierre.
+
+..
+
+.. bpo: 20035
+.. date: 9172
+.. nonce: UNZzw6
+.. section: Library
+
+Replaced the ``tkinter._fix`` module used for setting up the Tcl/Tk
+environment on Windows with a private function in the ``_tkinter`` module
+that makes no permanent changes to the environment.
+
+..
+
+.. bpo: 24257
+.. date: 9171
+.. nonce: L_efq0
+.. section: Library
+
+Fixed segmentation fault in sqlite3.Row constructor with faked cursor type.
+
+..
+
+.. bpo: 15836
+.. date: 9170
+.. nonce: gU3Rmx
+.. section: Library
+
+assertRaises(), assertRaisesRegex(), assertWarns() and assertWarnsRegex()
+assertments now check the type of the first argument to prevent possible
+user error. Based on patch by Daniel Wagner-Hall.
+
+..
+
+.. bpo: 9858
+.. date: 9169
+.. nonce: uke9pa
+.. section: Library
+
+Add missing method stubs to _io.RawIOBase. Patch by Laura Rupprecht.
+
+..
+
+.. bpo: 22955
+.. date: 9168
+.. nonce: Jw_B9_
+.. section: Library
+
+attrgetter, itemgetter and methodcaller objects in the operator module now
+support pickling. Added readable and evaluable repr for these objects.
+Based on patch by Josh Rosenberg.
+
+..
+
+.. bpo: 22107
+.. date: 9167
+.. nonce: 2F8k4W
+.. section: Library
+
+tempfile.gettempdir() and tempfile.mkdtemp() now try again when a directory
+with the chosen name already exists on Windows as well as on Unix.
+tempfile.mkstemp() now fails early if parent directory is not valid (not
+exists or is a file) on Windows.
+
+..
+
+.. bpo: 23780
+.. date: 9166
+.. nonce: jFPVcN
+.. section: Library
+
+Improved error message in os.path.join() with single argument.
+
+..
+
+.. bpo: 6598
+.. date: 9165
+.. nonce: JdZNDt
+.. section: Library
+
+Increased time precision and random number range in email.utils.make_msgid()
+to strengthen the uniqueness of the message ID.
+
+..
+
+.. bpo: 24091
+.. date: 9164
+.. nonce: Jw0-wj
+.. section: Library
+
+Fixed various crashes in corner cases in C implementation of ElementTree.
+
+..
+
+.. bpo: 21931
+.. date: 9163
+.. nonce: t6lGxY
+.. section: Library
+
+msilib.FCICreate() now raises TypeError in the case of a bad argument
+instead of a ValueError with a bogus FCI error number. Patch by Jeffrey
+Armstrong.
+
+..
+
+.. bpo: 13866
+.. date: 9162
+.. nonce: n5NAj0
+.. section: Library
+
+*quote_via* argument added to urllib.parse.urlencode.
+
+..
+
+.. bpo: 20098
+.. date: 9161
+.. nonce: Y4otaf
+.. section: Library
+
+New mangle_from policy option for email, default True for compat32, but
+False for all other policies.
+
+..
+
+.. bpo: 24211
+.. date: 9160
+.. nonce: j3Afpc
+.. section: Library
+
+The email library now supports RFC 6532: it can generate headers using utf-8
+instead of encoded words.
+
+..
+
+.. bpo: 16314
+.. date: 9159
+.. nonce: Xc4d1O
+.. section: Library
+
+Added support for the LZMA compression in distutils.
+
+..
+
+.. bpo: 21804
+.. date: 9158
+.. nonce: lEhTlc
+.. section: Library
+
+poplib now supports RFC 6856 (UTF8).
+
+..
+
+.. bpo: 18682
+.. date: 9157
+.. nonce: 6Pnfte
+.. section: Library
+
+Optimized pprint functions for builtin scalar types.
+
+..
+
+.. bpo: 22027
+.. date: 9156
+.. nonce: _aeUQS
+.. section: Library
+
+smtplib now supports RFC 6531 (SMTPUTF8).
+
+..
+
+.. bpo: 23488
+.. date: 9155
+.. nonce: 7gs3Cm
+.. section: Library
+
+Random generator objects now consume 2x less memory on 64-bit.
+
+..
+
+.. bpo: 1322
+.. date: 9154
+.. nonce: 495nFL
+.. section: Library
+
+platform.dist() and platform.linux_distribution() functions are now
+deprecated. Initial patch by Vajrasky Kok.
+
+..
+
+.. bpo: 22486
+.. date: 9153
+.. nonce: Yxov5m
+.. section: Library
+
+Added the math.gcd() function. The fractions.gcd() function now is
+deprecated. Based on patch by Mark Dickinson.
+
+..
+
+.. bpo: 24064
+.. date: 9152
+.. nonce: zXC7OL
+.. section: Library
+
+Property() docstrings are now writeable. (Patch by Berker Peksag.)
+
+..
+
+.. bpo: 22681
+.. date: 9151
+.. nonce: 2rIoA2
+.. section: Library
+
+Added support for the koi8_t encoding.
+
+..
+
+.. bpo: 22682
+.. date: 9150
+.. nonce: cP4i3L
+.. section: Library
+
+Added support for the kz1048 encoding.
+
+..
+
+.. bpo: 23796
+.. date: 9149
+.. nonce: JJmUnc
+.. section: Library
+
+peek and read1 methods of BufferedReader now raise ValueError if they called
+on a closed object. Patch by John Hergenroeder.
+
+..
+
+.. bpo: 21795
+.. date: 9148
+.. nonce: BDLMS4
+.. section: Library
+
+smtpd now supports the 8BITMIME extension whenever the new *decode_data*
+constructor argument is set to False.
+
+..
+
+.. bpo: 24155
+.. date: 9147
+.. nonce: FZx5c2
+.. section: Library
+
+optimize heapq.heapify() for better cache performance when heapifying large
+lists.
+
+..
+
+.. bpo: 21800
+.. date: 9146
+.. nonce: evGSKc
+.. section: Library
+
+imaplib now supports RFC 5161 (enable), RFC 6855 (utf8/internationalized
+email) and automatically encodes non-ASCII usernames and passwords to UTF8.
+
+..
+
+.. bpo: 20274
+.. date: 9145
+.. nonce: uVHogg
+.. section: Library
+
+When calling a _sqlite.Connection, it now complains if passed any keyword
+arguments. Previously it silently ignored them.
+
+..
+
+.. bpo: 20274
+.. date: 9144
+.. nonce: hBst4M
+.. section: Library
+
+Remove ignored and erroneous "kwargs" parameters from three METH_VARARGS
+methods on _sqlite.Connection.
+
+..
+
+.. bpo: 24134
+.. date: 9143
+.. nonce: Ajw0S-
+.. section: Library
+
+assertRaises(), assertRaisesRegex(), assertWarns() and assertWarnsRegex()
+checks now emits a deprecation warning when callable is None or keyword
+arguments except msg is passed in the context manager mode.
+
+..
+
+.. bpo: 24018
+.. date: 9142
+.. nonce: hk7Rcn
+.. section: Library
+
+Add a collections.abc.Generator abstract base class. Contributed by Stefan
+Behnel.
+
+..
+
+.. bpo: 23880
+.. date: 9141
+.. nonce: QtKupC
+.. section: Library
+
+Tkinter's getint() and getdouble() now support Tcl_Obj. Tkinter's
+getdouble() now supports any numbers (in particular int).
+
+..
+
+.. bpo: 22619
+.. date: 9140
+.. nonce: 1gJEqV
+.. section: Library
+
+Added negative limit support in the traceback module. Based on patch by
+Dmitry Kazakov.
+
+..
+
+.. bpo: 24094
+.. date: 9139
+.. nonce: 7T-u7k
+.. section: Library
+
+Fix possible crash in json.encode with poorly behaved dict subclasses.
+
+..
+
+.. bpo: 9246
+.. date: 9138
+.. nonce: oM-Ikk
+.. section: Library
+
+On POSIX, os.getcwd() now supports paths longer than 1025 bytes. Patch
+written by William Orr.
+
+..
+
+.. bpo: 17445
+.. date: 9137
+.. nonce: Z-QYh5
+.. section: Library
+
+add difflib.diff_bytes() to support comparison of byte strings (fixes a
+regression from Python 2).
+
+..
+
+.. bpo: 23917
+.. date: 9136
+.. nonce: uMVPV7
+.. section: Library
+
+Fall back to sequential compilation when ProcessPoolExecutor doesn't exist.
+Patch by Claudiu Popa.
+
+..
+
+.. bpo: 23008
+.. date: 9135
+.. nonce: OZFCd-
+.. section: Library
+
+Fixed resolving attributes with boolean value is False in pydoc.
+
+..
+
+.. bpo: 0
+.. date: 9134
+.. nonce: 6tJNf2
+.. section: Library
+
+Fix asyncio issue 235: LifoQueue and PriorityQueue's put didn't increment
+unfinished tasks (this bug was introduced when JoinableQueue was merged with
+Queue).
+
+..
+
+.. bpo: 23908
+.. date: 9133
+.. nonce: ATdNG-
+.. section: Library
+
+os functions now reject paths with embedded null character on Windows
+instead of silently truncating them.
+
+..
+
+.. bpo: 23728
+.. date: 9132
+.. nonce: YBmQmV
+.. section: Library
+
+binascii.crc_hqx() could return an integer outside of the range 0-0xffff for
+empty data.
+
+..
+
+.. bpo: 23887
+.. date: 9131
+.. nonce: _XpjPN
+.. section: Library
+
+urllib.error.HTTPError now has a proper repr() representation. Patch by
+Berker Peksag.
+
+..
+
+.. bpo: 0
+.. date: 9130
+.. nonce: MjNdSC
+.. section: Library
+
+asyncio: New event loop APIs: set_task_factory() and get_task_factory().
+
+..
+
+.. bpo: 0
+.. date: 9129
+.. nonce: rVcHXp
+.. section: Library
+
+asyncio: async() function is deprecated in favour of ensure_future().
+
+..
+
+.. bpo: 24178
+.. date: 9128
+.. nonce: -enO4y
+.. section: Library
+
+asyncio.Lock, Condition, Semaphore, and BoundedSemaphore support new 'async
+with' syntax. Contributed by Yury Selivanov.
+
+..
+
+.. bpo: 24179
+.. date: 9127
+.. nonce: wDy_WZ
+.. section: Library
+
+Support 'async for' for asyncio.StreamReader. Contributed by Yury Selivanov.
+
+..
+
+.. bpo: 24184
+.. date: 9126
+.. nonce: El74TU
+.. section: Library
+
+Add AsyncIterator and AsyncIterable ABCs to collections.abc. Contributed by
+Yury Selivanov.
+
+..
+
+.. bpo: 22547
+.. date: 9125
+.. nonce: _ikCaj
+.. section: Library
+
+Implement informative __repr__ for inspect.BoundArguments. Contributed by
+Yury Selivanov.
+
+..
+
+.. bpo: 24190
+.. date: 9124
+.. nonce: 1a3vWW
+.. section: Library
+
+Implement inspect.BoundArgument.apply_defaults() method. Contributed by Yury
+Selivanov.
+
+..
+
+.. bpo: 20691
+.. date: 9123
+.. nonce: -raLyf
+.. section: Library
+
+Add 'follow_wrapped' argument to inspect.Signature.from_callable() and
+inspect.signature(). Contributed by Yury Selivanov.
+
+..
+
+.. bpo: 24248
+.. date: 9122
+.. nonce: IxWooo
+.. section: Library
+
+Deprecate inspect.Signature.from_function() and
+inspect.Signature.from_builtin().
+
+..
+
+.. bpo: 23898
+.. date: 9121
+.. nonce: OSiZie
+.. section: Library
+
+Fix inspect.classify_class_attrs() to support attributes with overloaded
+__eq__ and __bool__. Patch by Mike Bayer.
+
+..
+
+.. bpo: 24298
+.. date: 9120
+.. nonce: u_TaxI
+.. section: Library
+
+Fix inspect.signature() to correctly unwrap wrappers around bound methods.
+
+..
+
+.. bpo: 23184
+.. date: 9119
+.. nonce: G_Cp9v
+.. section: IDLE
+
+remove unused names and imports in idlelib. Initial patch by Al Sweigart.
+
+..
+
+.. bpo: 21520
+.. date: 9118
+.. nonce: FKtvmQ
+.. section: Tests
+
+test_zipfile no longer fails if the word 'bad' appears anywhere in the name
+of the current directory.
+
+..
+
+.. bpo: 9517
+.. date: 9117
+.. nonce: W0Ag2V
+.. section: Tests
+
+Move script_helper into the support package. Patch by Christie Wilson.
+
+..
+
+.. bpo: 22155
+.. date: 9116
+.. nonce: 9EbOit
+.. section: Documentation
+
+Add File Handlers subsection with createfilehandler to tkinter doc. Remove
+obsolete example from FAQ. Patch by Martin Panter.
+
+..
+
+.. bpo: 24029
+.. date: 9115
+.. nonce: M2Bnks
+.. section: Documentation
+
+Document the name binding behavior for submodule imports.
+
+..
+
+.. bpo: 24077
+.. date: 9114
+.. nonce: 2Og2j-
+.. section: Documentation
+
+Fix typo in man page for -I command option: -s, not -S
+
+..
+
+.. bpo: 24000
+.. date: 9113
+.. nonce: MJyXRr
+.. section: Tools/Demos
+
+Improved Argument Clinic's mapping of converters to legacy "format units".
+Updated the documentation to match.
+
+..
+
+.. bpo: 24001
+.. date: 9112
+.. nonce: m74vst
+.. section: Tools/Demos
+
+Argument Clinic converters now use accept={type} instead of types={'type'}
+to specify the types the converter accepts.
+
+..
+
+.. bpo: 23330
+.. date: 9111
+.. nonce: LTlKDp
+.. section: Tools/Demos
+
+h2py now supports arbitrary filenames in #include.
+
+..
+
+.. bpo: 24031
+.. date: 9110
+.. nonce: duGo88
+.. section: Tools/Demos
+
+make patchcheck now supports git checkouts, too.
--- /dev/null
+.. bpo: 24284
+.. date: 9208
+.. nonce: NvtEnc
+.. release date: 2015-05-31
+.. section: Core and Builtins
+
+The startswith and endswith methods of the str class no longer return True
+when finding the empty string and the indexes are completely out of range.
+
+..
+
+.. bpo: 24115
+.. date: 9207
+.. nonce: y9e_MO
+.. section: Core and Builtins
+
+Update uses of PyObject_IsTrue(), PyObject_Not(), PyObject_IsInstance(),
+PyObject_RichCompareBool() and _PyDict_Contains() to check for and handle
+errors correctly.
+
+..
+
+.. bpo: 24328
+.. date: 9206
+.. nonce: 5gL8or
+.. section: Core and Builtins
+
+Fix importing one character extension modules.
+
+..
+
+.. bpo: 11205
+.. date: 9205
+.. nonce: bikrRP
+.. section: Core and Builtins
+
+In dictionary displays, evaluate the key before the value.
+
+..
+
+.. bpo: 24285
+.. date: 9204
+.. nonce: wvJumr
+.. section: Core and Builtins
+
+Fixed regression that prevented importing extension modules from inside
+packages. Patch by Petr Viktorin.
+
+..
+
+.. bpo: 23247
+.. date: 9203
+.. nonce: nN-K74
+.. section: Library
+
+Fix a crash in the StreamWriter.reset() of CJK codecs.
+
+..
+
+.. bpo: 24270
+.. date: 9202
+.. nonce: M2rJNs
+.. section: Library
+
+Add math.isclose() and cmath.isclose() functions as per :pep:`485`. Contributed
+by Chris Barker and Tal Einat.
+
+..
+
+.. bpo: 5633
+.. date: 9201
+.. nonce: JNzKZq
+.. section: Library
+
+Fixed timeit when the statement is a string and the setup is not.
+
+..
+
+.. bpo: 24326
+.. date: 9200
+.. nonce: 4t_6Gy
+.. section: Library
+
+Fixed audioop.ratecv() with non-default weightB argument. Original patch by
+David Moore.
+
+..
+
+.. bpo: 16991
+.. date: 9199
+.. nonce: 19_Zmj
+.. section: Library
+
+Add a C implementation of OrderedDict.
+
+..
+
+.. bpo: 23934
+.. date: 9198
+.. nonce: esb-45
+.. section: Library
+
+Fix inspect.signature to fail correctly for builtin types lacking signature
+information. Initial patch by James Powell.
--- /dev/null
+.. bpo: 24467
+.. date: 9236
+.. nonce: BAJ80-
+.. release date: 2015-07-05
+.. section: Core and Builtins
+
+Fixed possible buffer over-read in bytearray. The bytearray object now
+always allocates place for trailing null byte and it's buffer now is always
+null-terminated.
+
+..
+
+.. bpo: 0
+.. date: 9235
+.. nonce: 944IUY
+.. section: Core and Builtins
+
+Upgrade to Unicode 8.0.0.
+
+..
+
+.. bpo: 24345
+.. date: 9234
+.. nonce: fVcTaB
+.. section: Core and Builtins
+
+Add Py_tp_finalize slot for the stable ABI.
+
+..
+
+.. bpo: 24400
+.. date: 9233
+.. nonce: 2mNeD8
+.. section: Core and Builtins
+
+Introduce a distinct type for :pep:`492` coroutines; add types.CoroutineType,
+inspect.getcoroutinestate, inspect.getcoroutinelocals; coroutines no longer
+use CO_GENERATOR flag; sys.set_coroutine_wrapper works only for 'async def'
+coroutines; inspect.iscoroutine no longer uses collections.abc.Coroutine,
+it's intended to test for pure 'async def' coroutines only; add new opcode:
+GET_YIELD_FROM_ITER; fix generators wrapper used in types.coroutine to be
+instance of collections.abc.Generator; collections.abc.Awaitable and
+collections.abc.Coroutine can no longer be used to detect generator-based
+coroutines--use inspect.isawaitable instead.
+
+..
+
+.. bpo: 24450
+.. date: 9232
+.. nonce: lF0S5c
+.. section: Core and Builtins
+
+Add gi_yieldfrom to generators and cr_await to coroutines. Contributed by
+Benno Leslie and Yury Selivanov.
+
+..
+
+.. bpo: 19235
+.. date: 9231
+.. nonce: 0kW4n5
+.. section: Core and Builtins
+
+Add new RecursionError exception. Patch by Georg Brandl.
+
+..
+
+.. bpo: 21750
+.. date: 9230
+.. nonce: _Ycvgi
+.. section: Library
+
+mock_open.read_data can now be read from each instance, as it could in
+Python 3.3.
+
+..
+
+.. bpo: 24552
+.. date: 9229
+.. nonce: VTO6sf
+.. section: Library
+
+Fix use after free in an error case of the _pickle module.
+
+..
+
+.. bpo: 24514
+.. date: 9228
+.. nonce: _xRb2r
+.. section: Library
+
+tarfile now tolerates number fields consisting of only whitespace.
+
+..
+
+.. bpo: 19176
+.. date: 9227
+.. nonce: 8V6nOK
+.. section: Library
+
+Fixed doctype() related bugs in C implementation of ElementTree. A
+deprecation warning no longer issued by XMLParser subclass with default
+doctype() method. Direct call of doctype() now issues a warning. Parser's
+doctype() now is not called if target's doctype() is called. Based on patch
+by Martin Panter.
+
+..
+
+.. bpo: 20387
+.. date: 9226
+.. nonce: aAbWbQ
+.. section: Library
+
+Restore semantic round-trip correctness in tokenize/untokenize for
+tab-indented blocks.
+
+..
+
+.. bpo: 24456
+.. date: 9225
+.. nonce: yYSd2u
+.. section: Library
+
+Fixed possible buffer over-read in adpcm2lin() and lin2adpcm() functions of
+the audioop module.
+
+..
+
+.. bpo: 24336
+.. date: 9224
+.. nonce: 4a5y1m
+.. section: Library
+
+The contextmanager decorator now works with functions with keyword arguments
+called "func" and "self". Patch by Martin Panter.
+
+..
+
+.. bpo: 24522
+.. date: 9223
+.. nonce: PkcqCA
+.. section: Library
+
+Fix possible integer overflow in json accelerator module.
+
+..
+
+.. bpo: 24489
+.. date: 9222
+.. nonce: GJnMcW
+.. section: Library
+
+ensure a previously set C errno doesn't disturb cmath.polar().
+
+..
+
+.. bpo: 24408
+.. date: 9221
+.. nonce: vPb5UK
+.. section: Library
+
+Fixed AttributeError in measure() and metrics() methods of tkinter.Font.
+
+..
+
+.. bpo: 14373
+.. date: 9220
+.. nonce: CTYZ4J
+.. section: Library
+
+C implementation of functools.lru_cache() now can be used with methods.
+
+..
+
+.. bpo: 24347
+.. date: 9219
+.. nonce: CPPDb8
+.. section: Library
+
+Set KeyError if PyDict_GetItemWithError returns NULL.
+
+..
+
+.. bpo: 24348
+.. date: 9218
+.. nonce: U11rhr
+.. section: Library
+
+Drop superfluous incref/decref.
+
+..
+
+.. bpo: 24359
+.. date: 9217
+.. nonce: -IRNG9
+.. section: Library
+
+Check for changed OrderedDict size during iteration.
+
+..
+
+.. bpo: 24368
+.. date: 9216
+.. nonce: 550kDT
+.. section: Library
+
+Support keyword arguments in OrderedDict methods.
+
+..
+
+.. bpo: 24362
+.. date: 9215
+.. nonce: cHYce5
+.. section: Library
+
+Simplify the C OrderedDict fast nodes resize logic.
+
+..
+
+.. bpo: 24377
+.. date: 9214
+.. nonce: Gp1Bqr
+.. section: Library
+
+Fix a ref leak in OrderedDict.__repr__.
+
+..
+
+.. bpo: 24369
+.. date: 9213
+.. nonce: qFl7lZ
+.. section: Library
+
+Defend against key-changes during iteration.
+
+..
+
+.. bpo: 24373
+.. date: 9212
+.. nonce: 6TL2XG
+.. section: Tests
+
+_testmultiphase and xxlimited now use tp_traverse and tp_finalize to avoid
+reference leaks encountered when combining tp_dealloc with PyType_FromSpec
+(see issue #16690 for details)
+
+..
+
+.. bpo: 24458
+.. date: 9211
+.. nonce: 1egApX
+.. section: Documentation
+
+Update documentation to cover multi-phase initialization for extension
+modules (PEP 489). Patch by Petr Viktorin.
+
+..
+
+.. bpo: 24351
+.. date: 9210
+.. nonce: XeSVl5
+.. section: Documentation
+
+Clarify what is meant by "identifier" in the context of string.Template
+instances.
+
+..
+
+.. bpo: 24432
+.. date: 9209
+.. nonce: IvUSiN
+.. section: Build
+
+Update Windows builds and OS X 10.5 installer to use OpenSSL 1.0.2c.
--- /dev/null
+.. bpo: 23573
+.. date: 9263
+.. nonce: HdJPs7
+.. release date: 2015-07-26
+.. section: Core and Builtins
+
+Restored optimization of bytes.rfind() and bytearray.rfind() for single-byte
+argument on Linux.
+
+..
+
+.. bpo: 24569
+.. date: 9262
+.. nonce: bqh6PQ
+.. section: Core and Builtins
+
+Make :pep:`448` dictionary evaluation more consistent.
+
+..
+
+.. bpo: 24583
+.. date: 9261
+.. nonce: Ooq0Tn
+.. section: Core and Builtins
+
+Fix crash when set is mutated while being updated.
+
+..
+
+.. bpo: 24407
+.. date: 9260
+.. nonce: GmCBB3
+.. section: Core and Builtins
+
+Fix crash when dict is mutated while being updated.
+
+..
+
+.. bpo: 24619
+.. date: 9259
+.. nonce: cnfZGo
+.. section: Core and Builtins
+
+New approach for tokenizing async/await. As a consequence, it is now
+possible to have one-line 'async def foo(): await ..' functions.
+
+..
+
+.. bpo: 24687
+.. date: 9258
+.. nonce: 0UaXFe
+.. section: Core and Builtins
+
+Plug refleak on SyntaxError in function parameters annotations.
+
+..
+
+.. bpo: 15944
+.. date: 9257
+.. nonce: 4GuwqX
+.. section: Core and Builtins
+
+memoryview: Allow arbitrary formats when casting to bytes. Patch by Martin
+Panter.
+
+..
+
+.. bpo: 23441
+.. date: 9256
+.. nonce: JXt2Yt
+.. section: Library
+
+rcompleter now prints a tab character instead of displaying possible
+completions for an empty word. Initial patch by Martin Sekera.
+
+..
+
+.. bpo: 24683
+.. date: 9255
+.. nonce: aJdWEv
+.. section: Library
+
+Fixed crashes in _json functions called with arguments of inappropriate
+type.
+
+..
+
+.. bpo: 21697
+.. date: 9254
+.. nonce: jpATha
+.. section: Library
+
+shutil.copytree() now correctly handles symbolic links that point to
+directories. Patch by Eduardo Seabra and Thomas Kluyver.
+
+..
+
+.. bpo: 14373
+.. date: 9253
+.. nonce: Je0yDg
+.. section: Library
+
+Fixed segmentation fault when gc.collect() is called during constructing
+lru_cache (C implementation).
+
+..
+
+.. bpo: 24695
+.. date: 9252
+.. nonce: QjZzFb
+.. section: Library
+
+Fix a regression in traceback.print_exception(). If exc_traceback is None
+we shouldn't print a traceback header like described in the documentation.
+
+..
+
+.. bpo: 24620
+.. date: 9251
+.. nonce: rrnxB-
+.. section: Library
+
+Random.setstate() now validates the value of state last element.
+
+..
+
+.. bpo: 22485
+.. date: 9250
+.. nonce: HvJf6T
+.. section: Library
+
+Fixed an issue that caused `inspect.getsource` to return incorrect results
+on nested functions.
+
+..
+
+.. bpo: 22153
+.. date: 9249
+.. nonce: 6n6yld
+.. section: Library
+
+Improve unittest docs. Patch from Martin Panter and evilzero.
+
+..
+
+.. bpo: 24580
+.. date: 9248
+.. nonce: AGi4Gm
+.. section: Library
+
+Symbolic group references to open group in re patterns now are explicitly
+forbidden as well as numeric group references.
+
+..
+
+.. bpo: 24206
+.. date: 9247
+.. nonce: ffkVHH
+.. section: Library
+
+Fixed __eq__ and __ne__ methods of inspect classes.
+
+..
+
+.. bpo: 24631
+.. date: 9246
+.. nonce: uljPxM
+.. section: Library
+
+Fixed regression in the timeit module with multiline setup.
+
+..
+
+.. bpo: 18622
+.. date: 9245
+.. nonce: i6nCCW
+.. section: Library
+
+unittest.mock.mock_open().reset_mock would recurse infinitely. Patch from
+Nicola Palumbo and Laurent De Buyst.
+
+..
+
+.. bpo: 23661
+.. date: 9244
+.. nonce: 5VHJmh
+.. section: Library
+
+unittest.mock side_effects can now be exceptions again. This was a
+regression vs Python 3.4. Patch from Ignacio Rossi
+
+..
+
+.. bpo: 24608
+.. date: 9243
+.. nonce: 0TndL0
+.. section: Library
+
+chunk.Chunk.read() now always returns bytes, not str.
+
+..
+
+.. bpo: 18684
+.. date: 9242
+.. nonce: S2es0F
+.. section: Library
+
+Fixed reading out of the buffer in the re module.
+
+..
+
+.. bpo: 24259
+.. date: 9241
+.. nonce: vMAi1A
+.. section: Library
+
+tarfile now raises a ReadError if an archive is truncated inside a data
+segment.
+
+..
+
+.. bpo: 15014
+.. date: 9240
+.. nonce: hwXwCH
+.. section: Library
+
+SMTP.auth() and SMTP.login() now support RFC 4954's optional
+initial-response argument to the SMTP AUTH command.
+
+..
+
+.. bpo: 24669
+.. date: 9239
+.. nonce: kFThK0
+.. section: Library
+
+Fix inspect.getsource() for 'async def' functions. Patch by Kai Groner.
+
+..
+
+.. bpo: 24688
+.. date: 9238
+.. nonce: -yWfcO
+.. section: Library
+
+ast.get_docstring() for 'async def' functions.
+
+..
+
+.. bpo: 24603
+.. date: 9237
+.. nonce: PyHyF5
+.. section: Build
+
+Update Windows builds and OS X 10.5 installer to use OpenSSL 1.0.2d.
--- /dev/null
+.. bpo: 24667
+.. date: 9288
+.. nonce: tdwszf
+.. release date: 2015-08-09
+.. section: Core and Builtins
+
+Resize odict in all cases that the underlying dict resizes.
+
+..
+
+.. bpo: 24824
+.. date: 9287
+.. nonce: Eoc4lq
+.. section: Library
+
+Signatures of codecs.encode() and codecs.decode() now are compatible with
+pydoc.
+
+..
+
+.. bpo: 24634
+.. date: 9286
+.. nonce: 7bnVgr
+.. section: Library
+
+Importing uuid should not try to load libc on Windows
+
+..
+
+.. bpo: 24798
+.. date: 9285
+.. nonce: zDXL5R
+.. section: Library
+
+_msvccompiler.py doesn't properly support manifests
+
+..
+
+.. bpo: 4395
+.. date: 9284
+.. nonce: JpT0k7
+.. section: Library
+
+Better testing and documentation of binary operators. Patch by Martin
+Panter.
+
+..
+
+.. bpo: 23973
+.. date: 9283
+.. nonce: wT59Vh
+.. section: Library
+
+Update typing.py from GitHub repo.
+
+..
+
+.. bpo: 23004
+.. date: 9282
+.. nonce: xswcPm
+.. section: Library
+
+mock_open() now reads binary data correctly when the type of read_data is
+bytes. Initial patch by Aaron Hill.
+
+..
+
+.. bpo: 23888
+.. date: 9281
+.. nonce: 7gw4oO
+.. section: Library
+
+Handle fractional time in cookie expiry. Patch by ssh.
+
+..
+
+.. bpo: 23652
+.. date: 9280
+.. nonce: DKQ_7t
+.. section: Library
+
+Make it possible to compile the select module against the libc headers from
+the Linux Standard Base, which do not include some EPOLL macros. Patch by
+Matt Frank.
+
+..
+
+.. bpo: 22932
+.. date: 9279
+.. nonce: mPclSJ
+.. section: Library
+
+Fix timezones in email.utils.formatdate. Patch from Dmitry Shachnev.
+
+..
+
+.. bpo: 23779
+.. date: 9278
+.. nonce: ET4JJP
+.. section: Library
+
+imaplib raises TypeError if authenticator tries to abort. Patch from Craig
+Holmquist.
+
+..
+
+.. bpo: 23319
+.. date: 9277
+.. nonce: FXyUH-
+.. section: Library
+
+Fix ctypes.BigEndianStructure, swap correctly bytes. Patch written by
+Matthieu Gautier.
+
+..
+
+.. bpo: 23254
+.. date: 9276
+.. nonce: zNiy1X
+.. section: Library
+
+Document how to close the TCPServer listening socket. Patch from Martin
+Panter.
+
+..
+
+.. bpo: 19450
+.. date: 9275
+.. nonce: VG7T-L
+.. section: Library
+
+Update Windows and OS X installer builds to use SQLite 3.8.11.
+
+..
+
+.. bpo: 17527
+.. date: 9274
+.. nonce: ve9fyw
+.. section: Library
+
+Add PATCH to wsgiref.validator. Patch from Luca Sbardella.
+
+..
+
+.. bpo: 24791
+.. date: 9273
+.. nonce: Ok-3nA
+.. section: Library
+
+Fix grammar regression for call syntax: 'g(\*a or b)'.
+
+..
+
+.. bpo: 23672
+.. date: 9272
+.. nonce: 8td2se
+.. section: IDLE
+
+Allow Idle to edit and run files with astral chars in name. Patch by Mohd
+Sanad Zaki Rizvi.
+
+..
+
+.. bpo: 24745
+.. date: 9271
+.. nonce: edbziT
+.. section: IDLE
+
+Idle editor default font. Switch from Courier to platform-sensitive
+TkFixedFont. This should not affect current customized font selections. If
+there is a problem, edit $HOME/.idlerc/config-main.cfg and remove 'fontxxx'
+entries from [Editor Window]. Patch by Mark Roseman.
+
+..
+
+.. bpo: 21192
+.. date: 9270
+.. nonce: CdbipH
+.. section: IDLE
+
+Idle editor. When a file is run, put its name in the restart bar. Do not
+print false prompts. Original patch by Adnan Umer.
+
+..
+
+.. bpo: 13884
+.. date: 9269
+.. nonce: vVcO1E
+.. section: IDLE
+
+Idle menus. Remove tearoff lines. Patch by Roger Serwy.
+
+..
+
+.. bpo: 24129
+.. date: 9268
+.. nonce: Imr54z
+.. section: Documentation
+
+Clarify the reference documentation for name resolution. This includes
+removing the assumption that readers will be familiar with the name
+resolution scheme Python used prior to the introduction of lexical scoping
+for function namespaces. Patch by Ivan Levkivskyi.
+
+..
+
+.. bpo: 20769
+.. date: 9267
+.. nonce: ZUc9z9
+.. section: Documentation
+
+Improve reload() docs. Patch by Dorian Pula.
+
+..
+
+.. bpo: 23589
+.. date: 9266
+.. nonce: rjU421
+.. section: Documentation
+
+Remove duplicate sentence from the FAQ. Patch by Yongzhi Pan.
+
+..
+
+.. bpo: 24729
+.. date: 9265
+.. nonce: PH3A9p
+.. section: Documentation
+
+Correct IO tutorial to match implementation regarding encoding parameter to
+open function.
+
+..
+
+.. bpo: 24751
+.. date: 9264
+.. nonce: pL2pbj
+.. section: Tests
+
+When running regrtest with the ``-w`` command line option, a test run is no
+longer marked as a failure if all tests succeed when re-run.
--- /dev/null
+.. bpo: 24769
+.. date: 9294
+.. nonce: XgRA0n
+.. release date: 2015-08-25
+.. section: Core and Builtins
+
+Interpreter now starts properly when dynamic loading is disabled. Patch by
+Petr Viktorin.
+
+..
+
+.. bpo: 21167
+.. date: 9293
+.. nonce: uom-Dq
+.. section: Core and Builtins
+
+NAN operations are now handled correctly when python is compiled with ICC
+even if -fp-model strict is not specified.
+
+..
+
+.. bpo: 24492
+.. date: 9292
+.. nonce: LKDAIu
+.. section: Core and Builtins
+
+A "package" lacking a __name__ attribute when trying to perform a ``from ..
+import ...`` statement will trigger an ImportError instead of an
+AttributeError.
+
+..
+
+.. bpo: 24847
+.. date: 9291
+.. nonce: SHiiO_
+.. section: Library
+
+Removes vcruntime140.dll dependency from Tcl/Tk.
+
+..
+
+.. bpo: 24839
+.. date: 9290
+.. nonce: 7_iQZl
+.. section: Library
+
+platform._syscmd_ver raises DeprecationWarning
+
+..
+
+.. bpo: 24867
+.. date: 9289
+.. nonce: rxJIl7
+.. section: Library
+
+Fix Task.get_stack() for 'async def' coroutines
--- /dev/null
+.. bpo: 24305
+.. date: 9302
+.. nonce: QeF4A8
+.. release date: 2015-09-07
+.. section: Core and Builtins
+
+Prevent import subsystem stack frames from being counted by the
+warnings.warn(stacklevel=) parameter.
+
+..
+
+.. bpo: 24912
+.. date: 9301
+.. nonce: ubSi5J
+.. section: Core and Builtins
+
+Prevent __class__ assignment to immutable built-in objects.
+
+..
+
+.. bpo: 24975
+.. date: 9300
+.. nonce: 2gLdfN
+.. section: Core and Builtins
+
+Fix AST compilation for :pep:`448` syntax.
+
+..
+
+.. bpo: 24917
+.. date: 9299
+.. nonce: xaQocz
+.. section: Library
+
+time_strftime() buffer over-read.
+
+..
+
+.. bpo: 24748
+.. date: 9298
+.. nonce: 83NuO8
+.. section: Library
+
+To resolve a compatibility problem found with py2exe and pywin32,
+imp.load_dynamic() once again ignores previously loaded modules to support
+Python modules replacing themselves with extension modules. Patch by Petr
+Viktorin.
+
+..
+
+.. bpo: 24635
+.. date: 9297
+.. nonce: EiJPPf
+.. section: Library
+
+Fixed a bug in typing.py where isinstance([], typing.Iterable) would return
+True once, then False on subsequent calls.
+
+..
+
+.. bpo: 24989
+.. date: 9296
+.. nonce: 9BJLiy
+.. section: Library
+
+Fixed buffer overread in BytesIO.readline() if a position is set beyond
+size. Based on patch by John Leitch.
+
+..
+
+.. bpo: 24913
+.. date: 9295
+.. nonce: p2ZAJ4
+.. section: Library
+
+Fix overrun error in deque.index(). Found by John Leitch and Bryce Darling.
--- /dev/null
+.. bpo: 25029
+.. date: 9304
+.. nonce: Zf97rk
+.. release date: 2015-09-09
+.. section: Library
+
+Fixes MemoryError in test_strptime.
+
+..
+
+.. bpo: 25027
+.. date: 9303
+.. nonce: Zaib78
+.. section: Build
+
+Reverts partial-static build options and adds vcruntime140.dll to Windows
+installation.
--- /dev/null
+.. bpo: 25709
+.. date: 9452
+.. nonce: OPX2TS
+.. release date: 2015-12-06
+.. section: Core and Builtins
+
+Fixed problem with in-place string concatenation and utf-8 cache.
+
+..
+
+.. bpo: 25715
+.. date: 9451
+.. nonce: 3LLYLj
+.. section: Windows
+
+Python 3.5.1 installer shows wrong upgrade path and incorrect logic for
+launcher detection.
--- /dev/null
+.. bpo: 25630
+.. date: 9450
+.. nonce: ZxzcoY
+.. release date: 2015-11-22
+.. section: Core and Builtins
+
+Fix a possible segfault during argument parsing in functions that accept
+filesystem paths.
+
+..
+
+.. bpo: 23564
+.. date: 9449
+.. nonce: XHarGG
+.. section: Core and Builtins
+
+Fixed a partially broken sanity check in the _posixsubprocess internals
+regarding how fds_to_pass were passed to the child. The bug had no actual
+impact as subprocess.py already avoided it.
+
+..
+
+.. bpo: 25388
+.. date: 9448
+.. nonce: zm3uuQ
+.. section: Core and Builtins
+
+Fixed tokenizer crash when processing undecodable source code with a null
+byte.
+
+..
+
+.. bpo: 25462
+.. date: 9447
+.. nonce: eXDzgO
+.. section: Core and Builtins
+
+The hash of the key now is calculated only once in most operations in C
+implementation of OrderedDict.
+
+..
+
+.. bpo: 22995
+.. date: 9446
+.. nonce: 90kpuP
+.. section: Core and Builtins
+
+Default implementation of __reduce__ and __reduce_ex__ now rejects builtin
+types with not defined __new__.
+
+..
+
+.. bpo: 25555
+.. date: 9445
+.. nonce: MUpG-j
+.. section: Core and Builtins
+
+Fix parser and AST: fill lineno and col_offset of "arg" node when compiling
+AST from Python objects.
+
+..
+
+.. bpo: 24802
+.. date: 9444
+.. nonce: Qie066
+.. section: Core and Builtins
+
+Avoid buffer overreads when int(), float(), compile(), exec() and eval() are
+passed bytes-like objects. These objects are not necessarily terminated by
+a null byte, but the functions assumed they were.
+
+..
+
+.. bpo: 24726
+.. date: 9443
+.. nonce: AHk4v2
+.. section: Core and Builtins
+
+Fixed a crash and leaking NULL in repr() of OrderedDict that was mutated by
+direct calls of dict methods.
+
+..
+
+.. bpo: 25449
+.. date: 9442
+.. nonce: VqTOFi
+.. section: Core and Builtins
+
+Iterating OrderedDict with keys with unstable hash now raises KeyError in C
+implementations as well as in Python implementation.
+
+..
+
+.. bpo: 25395
+.. date: 9441
+.. nonce: htkE3W
+.. section: Core and Builtins
+
+Fixed crash when highly nested OrderedDict structures were garbage
+collected.
+
+..
+
+.. bpo: 25274
+.. date: 9440
+.. nonce: QCGvAF
+.. section: Core and Builtins
+
+sys.setrecursionlimit() now raises a RecursionError if the new recursion
+limit is too low depending at the current recursion depth. Modify also the
+"lower-water mark" formula to make it monotonic. This mark is used to decide
+when the overflowed flag of the thread state is reset.
+
+..
+
+.. bpo: 24402
+.. date: 9439
+.. nonce: MAgi3X
+.. section: Core and Builtins
+
+Fix input() to prompt to the redirected stdout when sys.stdout.fileno()
+fails.
+
+..
+
+.. bpo: 24806
+.. date: 9438
+.. nonce: Nb0znT
+.. section: Core and Builtins
+
+Prevent builtin types that are not allowed to be subclassed from being
+subclassed through multiple inheritance.
+
+..
+
+.. bpo: 24848
+.. date: 9437
+.. nonce: HlUSuy
+.. section: Core and Builtins
+
+Fixed a number of bugs in UTF-7 decoding of misformed data.
+
+..
+
+.. bpo: 25280
+.. date: 9436
+.. nonce: ivTMwd
+.. section: Core and Builtins
+
+Import trace messages emitted in verbose (-v) mode are no longer formatted
+twice.
+
+..
+
+.. bpo: 25003
+.. date: 9435
+.. nonce: _ban92
+.. section: Core and Builtins
+
+On Solaris 11.3 or newer, os.urandom() now uses the getrandom() function
+instead of the getentropy() function. The getentropy() function is blocking
+to generate very good quality entropy, os.urandom() doesn't need such
+high-quality entropy.
+
+..
+
+.. bpo: 25182
+.. date: 9434
+.. nonce: gBDq-T
+.. section: Core and Builtins
+
+The stdprinter (used as sys.stderr before the io module is imported at
+startup) now uses the backslashreplace error handler.
+
+..
+
+.. bpo: 25131
+.. date: 9433
+.. nonce: j5hH6a
+.. section: Core and Builtins
+
+Make the line number and column offset of set/dict literals and
+comprehensions correspond to the opening brace.
+
+..
+
+.. bpo: 25150
+.. date: 9432
+.. nonce: 0Gh-Ty
+.. section: Core and Builtins
+
+Hide the private _Py_atomic_xxx symbols from the public Python.h header to
+fix a compilation error with OpenMP. PyThreadState_GET() becomes an alias to
+PyThreadState_Get() to avoid ABI incompatibilities.
+
+..
+
+.. bpo: 25626
+.. date: 9431
+.. nonce: TQ3fvb
+.. section: Library
+
+Change three zlib functions to accept sizes that fit in Py_ssize_t, but
+internally cap those sizes to UINT_MAX. This resolves a regression in 3.5
+where GzipFile.read() failed to read chunks larger than 2 or 4 GiB. The
+change affects the zlib.Decompress.decompress() max_length parameter, the
+zlib.decompress() bufsize parameter, and the zlib.Decompress.flush() length
+parameter.
+
+..
+
+.. bpo: 25583
+.. date: 9430
+.. nonce: Gk-cim
+.. section: Library
+
+Avoid incorrect errors raised by os.makedirs(exist_ok=True) when the OS
+gives priority to errors such as EACCES over EEXIST.
+
+..
+
+.. bpo: 25593
+.. date: 9429
+.. nonce: 56uegI
+.. section: Library
+
+Change semantics of EventLoop.stop() in asyncio.
+
+..
+
+.. bpo: 6973
+.. date: 9428
+.. nonce: nl5cHt
+.. section: Library
+
+When we know a subprocess.Popen process has died, do not allow the
+send_signal(), terminate(), or kill() methods to do anything as they could
+potentially signal a different process.
+
+..
+
+.. bpo: 25590
+.. date: 9427
+.. nonce: aCt-yW
+.. section: Library
+
+In the Readline completer, only call getattr() once per attribute.
+
+..
+
+.. bpo: 25498
+.. date: 9426
+.. nonce: AvqEBl
+.. section: Library
+
+Fix a crash when garbage-collecting ctypes objects created by wrapping a
+memoryview. This was a regression made in 3.5a1. Based on patch by
+Eryksun.
+
+..
+
+.. bpo: 25584
+.. date: 9425
+.. nonce: 124mYw
+.. section: Library
+
+Added "escape" to the __all__ list in the glob module.
+
+..
+
+.. bpo: 25584
+.. date: 9424
+.. nonce: ZeWX0J
+.. section: Library
+
+Fixed recursive glob() with patterns starting with ``**``.
+
+..
+
+.. bpo: 25446
+.. date: 9423
+.. nonce: k1DByx
+.. section: Library
+
+Fix regression in smtplib's AUTH LOGIN support.
+
+..
+
+.. bpo: 18010
+.. date: 9422
+.. nonce: Azyf1C
+.. section: Library
+
+Fix the pydoc web server's module search function to handle exceptions from
+importing packages.
+
+..
+
+.. bpo: 25554
+.. date: 9421
+.. nonce: UM9MlR
+.. section: Library
+
+Got rid of circular references in regular expression parsing.
+
+..
+
+.. bpo: 25510
+.. date: 9420
+.. nonce: 79g7LA
+.. section: Library
+
+fileinput.FileInput.readline() now returns b'' instead of '' at the end if
+the FileInput was opened with binary mode. Patch by Ryosuke Ito.
+
+..
+
+.. bpo: 25503
+.. date: 9419
+.. nonce: Zea0Y7
+.. section: Library
+
+Fixed inspect.getdoc() for inherited docstrings of properties. Original
+patch by John Mark Vandenberg.
+
+..
+
+.. bpo: 25515
+.. date: 9418
+.. nonce: fQsyYG
+.. section: Library
+
+Always use os.urandom as a source of randomness in uuid.uuid4.
+
+..
+
+.. bpo: 21827
+.. date: 9417
+.. nonce: k2oreR
+.. section: Library
+
+Fixed textwrap.dedent() for the case when largest common whitespace is a
+substring of smallest leading whitespace. Based on patch by Robert Li.
+
+..
+
+.. bpo: 25447
+.. date: 9416
+.. nonce: eDYc4t
+.. section: Library
+
+The lru_cache() wrapper objects now can be copied and pickled (by returning
+the original object unchanged).
+
+..
+
+.. bpo: 25390
+.. date: 9415
+.. nonce: 6mSgRq
+.. section: Library
+
+typing: Don't crash on Union[str, Pattern].
+
+..
+
+.. bpo: 25441
+.. date: 9414
+.. nonce: d7zph6
+.. section: Library
+
+asyncio: Raise error from drain() when socket is closed.
+
+..
+
+.. bpo: 25410
+.. date: 9413
+.. nonce: QAs_3B
+.. section: Library
+
+Cleaned up and fixed minor bugs in C implementation of OrderedDict.
+
+..
+
+.. bpo: 25411
+.. date: 9412
+.. nonce: qsJTCb
+.. section: Library
+
+Improved Unicode support in SMTPHandler through better use of the email
+package. Thanks to user simon04 for the patch.
+
+..
+
+.. bpo: 25407
+.. date: 9411
+.. nonce: ukNt1D
+.. section: Library
+
+Remove mentions of the formatter module being removed in Python 3.6.
+
+..
+
+.. bpo: 25406
+.. date: 9410
+.. nonce: 5MZKU_
+.. section: Library
+
+Fixed a bug in C implementation of OrderedDict.move_to_end() that caused
+segmentation fault or hang in iterating after moving several items to the
+start of ordered dict.
+
+..
+
+.. bpo: 25364
+.. date: 9409
+.. nonce: u_1Wi6
+.. section: Library
+
+zipfile now works in threads disabled builds.
+
+..
+
+.. bpo: 25328
+.. date: 9408
+.. nonce: Rja1Xg
+.. section: Library
+
+smtpd's SMTPChannel now correctly raises a ValueError if both decode_data
+and enable_SMTPUTF8 are set to true.
+
+..
+
+.. bpo: 25316
+.. date: 9407
+.. nonce: dHQHWI
+.. section: Library
+
+distutils raises OSError instead of DistutilsPlatformError when MSVC is not
+installed.
+
+..
+
+.. bpo: 25380
+.. date: 9406
+.. nonce: sKZ6-I
+.. section: Library
+
+Fixed protocol for the STACK_GLOBAL opcode in pickletools.opcodes.
+
+..
+
+.. bpo: 23972
+.. date: 9405
+.. nonce: s2g30g
+.. section: Library
+
+Updates asyncio datagram create method allowing reuseport and reuseaddr
+socket options to be set prior to binding the socket. Mirroring the existing
+asyncio create_server method the reuseaddr option for datagram sockets
+defaults to True if the O/S is 'posix' (except if the platform is Cygwin).
+Patch by Chris Laws.
+
+..
+
+.. bpo: 25304
+.. date: 9404
+.. nonce: CsmLyI
+.. section: Library
+
+Add asyncio.run_coroutine_threadsafe(). This lets you submit a coroutine to
+a loop from another thread, returning a concurrent.futures.Future. By
+Vincent Michel.
+
+..
+
+.. bpo: 25232
+.. date: 9403
+.. nonce: KhKjCE
+.. section: Library
+
+Fix CGIRequestHandler to split the query from the URL at the first question
+mark (?) rather than the last. Patch from Xiang Zhang.
+
+..
+
+.. bpo: 24657
+.. date: 9402
+.. nonce: h2Ag7y
+.. section: Library
+
+Prevent CGIRequestHandler from collapsing slashes in the query part of the
+URL as if it were a path. Patch from Xiang Zhang.
+
+..
+
+.. bpo: 24483
+.. date: 9401
+.. nonce: WPLGSJ
+.. section: Library
+
+C implementation of functools.lru_cache() now calculates key's hash only
+once.
+
+..
+
+.. bpo: 22958
+.. date: 9400
+.. nonce: Ebu7Gl
+.. section: Library
+
+Constructor and update method of weakref.WeakValueDictionary now accept the
+self and the dict keyword arguments.
+
+..
+
+.. bpo: 22609
+.. date: 9399
+.. nonce: fV7hdV
+.. section: Library
+
+Constructor of collections.UserDict now accepts the self keyword argument.
+
+..
+
+.. bpo: 25111
+.. date: 9398
+.. nonce: azL4qE
+.. section: Library
+
+Fixed comparison of traceback.FrameSummary.
+
+..
+
+.. bpo: 25262
+.. date: 9397
+.. nonce: pQS5cB
+.. section: Library
+
+Added support for BINBYTES8 opcode in Python implementation of unpickler.
+Highest 32 bits of 64-bit size for BINUNICODE8 and BINBYTES8 opcodes no
+longer silently ignored on 32-bit platforms in C implementation.
+
+..
+
+.. bpo: 25034
+.. date: 9396
+.. nonce: eGvOIb
+.. section: Library
+
+Fix string.Formatter problem with auto-numbering and nested format_specs.
+Patch by Anthon van der Neut.
+
+..
+
+.. bpo: 25233
+.. date: 9395
+.. nonce: EdZV9x
+.. section: Library
+
+Rewrite the guts of asyncio.Queue and asyncio.Semaphore to be more
+understandable and correct.
+
+..
+
+.. bpo: 25203
+.. date: 9394
+.. nonce: IgDEbt
+.. section: Library
+
+Failed readline.set_completer_delims() no longer left the module in
+inconsistent state.
+
+..
+
+.. bpo: 23600
+.. date: 9393
+.. nonce: 7J_RD5
+.. section: Library
+
+Default implementation of tzinfo.fromutc() was returning wrong results in
+some cases.
+
+..
+
+.. bpo: 23329
+.. date: 9392
+.. nonce: yccJBE
+.. section: Library
+
+Allow the ssl module to be built with older versions of LibreSSL.
+
+..
+
+.. bpo: 0
+.. date: 9391
+.. nonce: ww9QSm
+.. section: Library
+
+Prevent overflow in _Unpickler_Read.
+
+..
+
+.. bpo: 25047
+.. date: 9390
+.. nonce: kc8tqx
+.. section: Library
+
+The XML encoding declaration written by Element Tree now respects the letter
+case given by the user. This restores the ability to write encoding names in
+uppercase like "UTF-8", which worked in Python 2.
+
+..
+
+.. bpo: 25135
+.. date: 9389
+.. nonce: gVHNy-
+.. section: Library
+
+Make deque_clear() safer by emptying the deque before clearing. This helps
+avoid possible reentrancy issues.
+
+..
+
+.. bpo: 19143
+.. date: 9388
+.. nonce: 76SBSO
+.. section: Library
+
+platform module now reads Windows version from kernel32.dll to avoid
+compatibility shims.
+
+..
+
+.. bpo: 25092
+.. date: 9387
+.. nonce: fQ37Ac
+.. section: Library
+
+Fix datetime.strftime() failure when errno was already set to EINVAL.
+
+..
+
+.. bpo: 23517
+.. date: 9386
+.. nonce: 3ABmf1
+.. section: Library
+
+Fix rounding in fromtimestamp() and utcfromtimestamp() methods of
+datetime.datetime: microseconds are now rounded to nearest with ties going
+to nearest even integer (ROUND_HALF_EVEN), instead of being rounding towards
+minus infinity (ROUND_FLOOR). It's important that these methods use the same
+rounding mode than datetime.timedelta to keep the property:
+(datetime(1970,1,1) + timedelta(seconds=t)) == datetime.utcfromtimestamp(t).
+It also the rounding mode used by round(float) for example.
+
+..
+
+.. bpo: 25155
+.. date: 9385
+.. nonce: JiETzD
+.. section: Library
+
+Fix datetime.datetime.now() and datetime.datetime.utcnow() on Windows to
+support date after year 2038. It was a regression introduced in Python
+3.5.0.
+
+..
+
+.. bpo: 25108
+.. date: 9384
+.. nonce: zGPbgA
+.. section: Library
+
+Omitted internal frames in traceback functions print_stack(),
+format_stack(), and extract_stack() called without arguments.
+
+..
+
+.. bpo: 25118
+.. date: 9383
+.. nonce: wGm1u6
+.. section: Library
+
+Fix a regression of Python 3.5.0 in os.waitpid() on Windows.
+
+..
+
+.. bpo: 24684
+.. date: 9382
+.. nonce: t4T77O
+.. section: Library
+
+socket.socket.getaddrinfo() now calls PyUnicode_AsEncodedString() instead of
+calling the encode() method of the host, to handle correctly custom string
+with an encode() method which doesn't return a byte string. The encoder of
+the IDNA codec is now called directly instead of calling the encode() method
+of the string.
+
+..
+
+.. bpo: 25060
+.. date: 9381
+.. nonce: zLdvIk
+.. section: Library
+
+Correctly compute stack usage of the BUILD_MAP opcode.
+
+..
+
+.. bpo: 24857
+.. date: 9380
+.. nonce: PpJWZ9
+.. section: Library
+
+Comparing call_args to a long sequence now correctly returns a boolean
+result instead of raising an exception. Patch by A Kaptur.
+
+..
+
+.. bpo: 23144
+.. date: 9379
+.. nonce: cLf67X
+.. section: Library
+
+Make sure that HTMLParser.feed() returns all the data, even when
+convert_charrefs is True.
+
+..
+
+.. bpo: 24982
+.. date: 9378
+.. nonce: sGMMAR
+.. section: Library
+
+shutil.make_archive() with the "zip" format now adds entries for directories
+(including empty directories) in ZIP file.
+
+..
+
+.. bpo: 25019
+.. date: 9377
+.. nonce: JQJlOZ
+.. section: Library
+
+Fixed a crash caused by setting non-string key of expat parser. Based on
+patch by John Leitch.
+
+..
+
+.. bpo: 16180
+.. date: 9376
+.. nonce: 6IUcNS
+.. section: Library
+
+Exit pdb if file has syntax error, instead of trapping user in an infinite
+loop. Patch by Xavier de Gaye.
+
+..
+
+.. bpo: 24891
+.. date: 9375
+.. nonce: ddVmHS
+.. section: Library
+
+Fix a race condition at Python startup if the file descriptor of stdin (0),
+stdout (1) or stderr (2) is closed while Python is creating sys.stdin,
+sys.stdout and sys.stderr objects. These attributes are now set to None if
+the creation of the object failed, instead of raising an OSError exception.
+Initial patch written by Marco Paolini.
+
+..
+
+.. bpo: 24992
+.. date: 9374
+.. nonce: 5sqF74
+.. section: Library
+
+Fix error handling and a race condition (related to garbage collection) in
+collections.OrderedDict constructor.
+
+..
+
+.. bpo: 24881
+.. date: 9373
+.. nonce: ZoVZXu
+.. section: Library
+
+Fixed setting binary mode in Python implementation of FileIO on Windows and
+Cygwin. Patch from Akira Li.
+
+..
+
+.. bpo: 25578
+.. date: 9372
+.. nonce: G6S-ft
+.. section: Library
+
+Fix (another) memory leak in SSLSocket.getpeercer().
+
+..
+
+.. bpo: 25530
+.. date: 9371
+.. nonce: hDFkwu
+.. section: Library
+
+Disable the vulnerable SSLv3 protocol by default when creating
+ssl.SSLContext.
+
+..
+
+.. bpo: 25569
+.. date: 9370
+.. nonce: CfvQjK
+.. section: Library
+
+Fix memory leak in SSLSocket.getpeercert().
+
+..
+
+.. bpo: 25471
+.. date: 9369
+.. nonce: T0A02M
+.. section: Library
+
+Sockets returned from accept() shouldn't appear to be nonblocking.
+
+..
+
+.. bpo: 25319
+.. date: 9368
+.. nonce: iyuglv
+.. section: Library
+
+When threading.Event is reinitialized, the underlying condition should use a
+regular lock rather than a recursive lock.
+
+..
+
+.. bpo: 21112
+.. date: 9367
+.. nonce: vSFU1r
+.. section: Library
+
+Fix regression in unittest.expectedFailure on subclasses. Patch from Berker
+Peksag.
+
+..
+
+.. bpo: 24764
+.. date: 9366
+.. nonce: QwFZ2S
+.. section: Library
+
+cgi.FieldStorage.read_multi() now ignores the Content-Length header in part
+headers. Patch written by Peter Landry and reviewed by Pierre Quentel.
+
+..
+
+.. bpo: 24913
+.. date: 9365
+.. nonce: p2ZAJ4
+.. section: Library
+
+Fix overrun error in deque.index(). Found by John Leitch and Bryce Darling.
+
+..
+
+.. bpo: 24774
+.. date: 9364
+.. nonce: xLbskG
+.. section: Library
+
+Fix docstring in http.server.test. Patch from Chiu-Hsiang Hsu.
+
+..
+
+.. bpo: 21159
+.. date: 9363
+.. nonce: ochL5W
+.. section: Library
+
+Improve message in configparser.InterpolationMissingOptionError. Patch from
+Łukasz Langa.
+
+..
+
+.. bpo: 20362
+.. date: 9362
+.. nonce: 5aP_Ri
+.. section: Library
+
+Honour TestCase.longMessage correctly in assertRegex. Patch from Ilia
+Kurenkov.
+
+..
+
+.. bpo: 23572
+.. date: 9361
+.. nonce: QhQ9RD
+.. section: Library
+
+Fixed functools.singledispatch on classes with falsy metaclasses. Patch by
+Ethan Furman.
+
+..
+
+.. bpo: 0
+.. date: 9360
+.. nonce: DO1sFa
+.. section: Library
+
+asyncio: ensure_future() now accepts awaitable objects.
+
+..
+
+.. bpo: 15348
+.. date: 9359
+.. nonce: d1Fg01
+.. section: IDLE
+
+Stop the debugger engine (normally in a user process) before closing the
+debugger window (running in the IDLE process). This prevents the
+RuntimeErrors that were being caught and ignored.
+
+..
+
+.. bpo: 24455
+.. date: 9358
+.. nonce: x6YqtE
+.. section: IDLE
+
+Prevent IDLE from hanging when a) closing the shell while the debugger is
+active (15347); b) closing the debugger with the [X] button (15348); and c)
+activating the debugger when already active (24455). The patch by Mark
+Roseman does this by making two changes. 1. Suspend and resume the
+gui.interaction method with the tcl vwait mechanism intended for this
+purpose (instead of root.mainloop & .quit). 2. In gui.run, allow any
+existing interaction to terminate first.
+
+..
+
+.. bpo: 0
+.. date: 9357
+.. nonce: Yp9LRY
+.. section: IDLE
+
+Change 'The program' to 'Your program' in an IDLE 'kill program?' message to
+make it clearer that the program referred to is the currently running user
+program, not IDLE itself.
+
+..
+
+.. bpo: 24750
+.. date: 9356
+.. nonce: xgsi-K
+.. section: IDLE
+
+Improve the appearance of the IDLE editor window status bar. Patch by Mark
+Roseman.
+
+..
+
+.. bpo: 25313
+.. date: 9355
+.. nonce: xMXHpO
+.. section: IDLE
+
+Change the handling of new built-in text color themes to better address the
+compatibility problem introduced by the addition of IDLE Dark. Consistently
+use the revised idleConf.CurrentTheme everywhere in idlelib.
+
+..
+
+.. bpo: 24782
+.. date: 9354
+.. nonce: RgIPYE
+.. section: IDLE
+
+Extension configuration is now a tab in the IDLE Preferences dialog rather
+than a separate dialog. The former tabs are now a sorted list. Patch by
+Mark Roseman.
+
+..
+
+.. bpo: 22726
+.. date: 9353
+.. nonce: x8T0dA
+.. section: IDLE
+
+Re-activate the config dialog help button with some content about the other
+buttons and the new IDLE Dark theme.
+
+..
+
+.. bpo: 24820
+.. date: 9352
+.. nonce: TFPJhr
+.. section: IDLE
+
+IDLE now has an 'IDLE Dark' built-in text color theme. It is more or less
+IDLE Classic inverted, with a cobalt blue background. Strings, comments,
+keywords, ... are still green, red, orange, ... . To use it with IDLEs
+released before November 2015, hit the 'Save as New Custom Theme' button and
+enter a new name, such as 'Custom Dark'. The custom theme will work with
+any IDLE release, and can be modified.
+
+..
+
+.. bpo: 25224
+.. date: 9351
+.. nonce: 5Llwo4
+.. section: IDLE
+
+README.txt is now an idlelib index for IDLE developers and curious users.
+The previous user content is now in the IDLE doc chapter. 'IDLE' now means
+'Integrated Development and Learning Environment'.
+
+..
+
+.. bpo: 24820
+.. date: 9350
+.. nonce: ZUz9Fn
+.. section: IDLE
+
+Users can now set breakpoint colors in Settings -> Custom Highlighting.
+Original patch by Mark Roseman.
+
+..
+
+.. bpo: 24972
+.. date: 9349
+.. nonce: uc0uNo
+.. section: IDLE
+
+Inactive selection background now matches active selection background, as
+configured by users, on all systems. Found items are now always highlighted
+on Windows. Initial patch by Mark Roseman.
+
+..
+
+.. bpo: 24570
+.. date: 9348
+.. nonce: s3EkNn
+.. section: IDLE
+
+Idle: make calltip and completion boxes appear on Macs affected by a tk
+regression. Initial patch by Mark Roseman.
+
+..
+
+.. bpo: 24988
+.. date: 9347
+.. nonce: tXqq4T
+.. section: IDLE
+
+Idle ScrolledList context menus (used in debugger) now work on Mac Aqua.
+Patch by Mark Roseman.
+
+..
+
+.. bpo: 24801
+.. date: 9346
+.. nonce: -bj_Ou
+.. section: IDLE
+
+Make right-click for context menu work on Mac Aqua. Patch by Mark Roseman.
+
+..
+
+.. bpo: 25173
+.. date: 9345
+.. nonce: EZzrPg
+.. section: IDLE
+
+Associate tkinter messageboxes with a specific widget. For Mac OSX, make
+them a 'sheet'. Patch by Mark Roseman.
+
+..
+
+.. bpo: 25198
+.. date: 9344
+.. nonce: -j_BV7
+.. section: IDLE
+
+Enhance the initial html viewer now used for Idle Help. Properly indent
+fixed-pitch text (patch by Mark Roseman). Give code snippet a very
+Sphinx-like light blueish-gray background. Re-use initial width and height
+set by users for shell and editor. When the Table of Contents (TOC) menu is
+used, put the section header at the top of the screen.
+
+..
+
+.. bpo: 25225
+.. date: 9343
+.. nonce: 9pvdq6
+.. section: IDLE
+
+Condense and rewrite Idle doc section on text colors.
+
+..
+
+.. bpo: 21995
+.. date: 9342
+.. nonce: C5Rmzx
+.. section: IDLE
+
+Explain some differences between IDLE and console Python.
+
+..
+
+.. bpo: 22820
+.. date: 9341
+.. nonce: hix_8X
+.. section: IDLE
+
+Explain need for *print* when running file from Idle editor.
+
+..
+
+.. bpo: 25224
+.. date: 9340
+.. nonce: UVMYQq
+.. section: IDLE
+
+Doc: augment Idle feature list and no-subprocess section.
+
+..
+
+.. bpo: 25219
+.. date: 9339
+.. nonce: 8_9DYg
+.. section: IDLE
+
+Update doc for Idle command line options. Some were missing and notes were
+not correct.
+
+..
+
+.. bpo: 24861
+.. date: 9338
+.. nonce: Ecg2yT
+.. section: IDLE
+
+Most of idlelib is private and subject to change. Use idleib.idle.* to start
+Idle. See idlelib.__init__.__doc__.
+
+..
+
+.. bpo: 25199
+.. date: 9337
+.. nonce: ih7yY3
+.. section: IDLE
+
+Idle: add synchronization comments for future maintainers.
+
+..
+
+.. bpo: 16893
+.. date: 9336
+.. nonce: bZtPgJ
+.. section: IDLE
+
+Replace help.txt with help.html for Idle doc display. The new
+idlelib/help.html is rstripped Doc/build/html/library/idle.html. It looks
+better than help.txt and will better document Idle as released. The tkinter
+html viewer that works for this file was written by Mark Roseman. The now
+unused EditorWindow.HelpDialog class and helt.txt file are deprecated.
+
+..
+
+.. bpo: 24199
+.. date: 9335
+.. nonce: VKnZEv
+.. section: IDLE
+
+Deprecate unused idlelib.idlever with possible removal in 3.6.
+
+..
+
+.. bpo: 24790
+.. date: 9334
+.. nonce: hD1hlj
+.. section: IDLE
+
+Remove extraneous code (which also create 2 & 3 conflicts).
+
+..
+
+.. bpo: 22558
+.. date: 9333
+.. nonce: Pk02YC
+.. section: Documentation
+
+Add remaining doc links to source code for Python-coded modules. Patch by
+Yoni Lavi.
+
+..
+
+.. bpo: 12067
+.. date: 9332
+.. nonce: nLD2M-
+.. section: Documentation
+
+Rewrite Comparisons section in the Expressions chapter of the language
+reference. Some of the details of comparing mixed types were incorrect or
+ambiguous. NotImplemented is only relevant at a lower level than the
+Expressions chapter. Added details of comparing range() objects, and default
+behaviour and consistency suggestions for user-defined classes. Patch from
+Andy Maier.
+
+..
+
+.. bpo: 24952
+.. date: 9331
+.. nonce: RHhFPE
+.. section: Documentation
+
+Clarify the default size argument of stack_size() in the "threading" and
+"_thread" modules. Patch from Mattip.
+
+..
+
+.. bpo: 23725
+.. date: 9330
+.. nonce: 49TZ5f
+.. section: Documentation
+
+Overhaul tempfile docs. Note deprecated status of mktemp. Patch from
+Zbigniew Jędrzejewski-Szmek.
+
+..
+
+.. bpo: 24808
+.. date: 9329
+.. nonce: MGjc3F
+.. section: Documentation
+
+Update the types of some PyTypeObject fields. Patch by Joseph Weston.
+
+..
+
+.. bpo: 22812
+.. date: 9328
+.. nonce: kLCF0G
+.. section: Documentation
+
+Fix unittest discovery examples. Patch from Pam McA'Nulty.
+
+..
+
+.. bpo: 25449
+.. date: 9327
+.. nonce: MP6KNs
+.. section: Tests
+
+Added tests for OrderedDict subclasses.
+
+..
+
+.. bpo: 25099
+.. date: 9326
+.. nonce: tJQOWx
+.. section: Tests
+
+Make test_compileall not fail when an entry on sys.path cannot be written to
+(commonly seen in administrative installs on Windows).
+
+..
+
+.. bpo: 23919
+.. date: 9325
+.. nonce: vJnjaq
+.. section: Tests
+
+Prevents assert dialogs appearing in the test suite.
+
+..
+
+.. bpo: 0
+.. date: 9324
+.. nonce: X-Bk5l
+.. section: Tests
+
+``PCbuild\rt.bat`` now accepts an unlimited number of arguments to pass
+along to regrtest.py. Previously there was a limit of 9.
+
+..
+
+.. bpo: 24915
+.. date: 9323
+.. nonce: PgD3Cx
+.. section: Build
+
+Add LLVM support for PGO builds and use the test suite to generate the
+profile data. Initial patch by Alecsandru Patrascu of Intel.
+
+..
+
+.. bpo: 24910
+.. date: 9322
+.. nonce: ZZdfl0
+.. section: Build
+
+Windows MSIs now have unique display names.
+
+..
+
+.. bpo: 24986
+.. date: 9321
+.. nonce: 1WyXeU
+.. section: Build
+
+It is now possible to build Python on Windows without errors when external
+libraries are not available.
+
+..
+
+.. bpo: 25450
+.. date: 9320
+.. nonce: X4xlWf
+.. section: Windows
+
+Updates shortcuts to start Python in installation directory.
+
+..
+
+.. bpo: 25164
+.. date: 9319
+.. nonce: FHVOOA
+.. section: Windows
+
+Changes default all-users install directory to match per-user directory.
+
+..
+
+.. bpo: 25143
+.. date: 9318
+.. nonce: hmxsia
+.. section: Windows
+
+Improves installer error messages for unsupported platforms.
+
+..
+
+.. bpo: 25163
+.. date: 9317
+.. nonce: uCRe8H
+.. section: Windows
+
+Display correct directory in installer when using non-default settings.
+
+..
+
+.. bpo: 25361
+.. date: 9316
+.. nonce: GETaSY
+.. section: Windows
+
+Disables use of SSE2 instructions in Windows 32-bit build
+
+..
+
+.. bpo: 25089
+.. date: 9315
+.. nonce: n_YJgw
+.. section: Windows
+
+Adds logging to installer for case where launcher is not selected on
+upgrade.
+
+..
+
+.. bpo: 25165
+.. date: 9314
+.. nonce: aUTN1e
+.. section: Windows
+
+Windows uninstallation should not remove launcher if other versions remain
+
+..
+
+.. bpo: 25112
+.. date: 9313
+.. nonce: frdKij
+.. section: Windows
+
+py.exe launcher is missing icons
+
+..
+
+.. bpo: 25102
+.. date: 9312
+.. nonce: 6y6Akl
+.. section: Windows
+
+Windows installer does not precompile for -O or -OO.
+
+..
+
+.. bpo: 25081
+.. date: 9311
+.. nonce: dcRCTO
+.. section: Windows
+
+Makes Back button in installer go back to upgrade page when upgrading.
+
+..
+
+.. bpo: 25091
+.. date: 9310
+.. nonce: 1u-VKy
+.. section: Windows
+
+Increases font size of the installer.
+
+..
+
+.. bpo: 25126
+.. date: 9309
+.. nonce: ANx3DW
+.. section: Windows
+
+Clarifies that the non-web installer will download some components.
+
+..
+
+.. bpo: 25213
+.. date: 9308
+.. nonce: KGmXoe
+.. section: Windows
+
+Restores requestedExecutionLevel to manifest to disable UAC virtualization.
+
+..
+
+.. bpo: 25022
+.. date: 9307
+.. nonce: vAt_zr
+.. section: Windows
+
+Removed very outdated PC/example_nt/ directory.
+
+..
+
+.. bpo: 25440
+.. date: 9306
+.. nonce: 5xhyGr
+.. section: Tools/Demos
+
+Fix output of python-config --extension-suffix.
--- /dev/null
+.. bpo: 26930
+.. date: 9676
+.. nonce: 9JUeSD
+.. release date: 2016-06-26
+.. section: Core and Builtins
+
+Update Windows builds to use OpenSSL 1.0.2h.
+
+..
+
+.. bpo: 26867
+.. date: 9675
+.. nonce: QPSyP5
+.. section: Tests
+
+Ubuntu's openssl OP_NO_SSLv3 is forced on by default; fix test.
+
+..
+
+.. bpo: 27365
+.. date: 9674
+.. nonce: ipkJ_M
+.. section: IDLE
+
+Allow non-ascii in idlelib/NEWS.txt - minimal part for 3.5.2.
--- /dev/null
+.. bpo: 26556
+.. date: 9636
+.. nonce: v5j2uL
+.. release date: 2016-06-12
+.. original section: Library
+.. section: Security
+
+Update expat to 2.1.1, fixes CVE-2015-1283.
+
+..
+
+.. bpo: 0
+.. date: 9635
+.. nonce: E4ochz
+.. original section: Library
+.. section: Security
+
+Fix TLS stripping vulnerability in smtplib, CVE-2016-0772. Reported by Team
+Oststrom
+
+..
+
+.. bpo: 26839
+.. date: 9629
+.. nonce: yVvy7R
+.. original section: Library
+.. section: Security
+
+On Linux, :func:`os.urandom` now calls ``getrandom()`` with
+``GRND_NONBLOCK`` to fall back on reading ``/dev/urandom`` if the urandom
+entropy pool is not initialized yet. Patch written by Colm Buckley.
+
+..
+
+.. bpo: 26657
+.. date: 9597
+.. nonce: C_-XFg
+.. original section: Library
+.. section: Security
+
+Fix directory traversal vulnerability with http.server on Windows. This
+fixes a regression that was introduced in 3.3.4rc1 and 3.4.0rc1. Based on
+patch by Philipp Hagemeister.
+
+..
+
+.. bpo: 26313
+.. date: 9581
+.. nonce: LjZAjy
+.. original section: Library
+.. section: Security
+
+ssl.py _load_windows_store_certs fails if windows cert store is empty. Patch
+by Baji.
+
+..
+
+.. bpo: 25939
+.. date: 9561
+.. nonce: X49Fqd
+.. original section: Library
+.. section: Security
+
+On Windows open the cert store readonly in ssl.enum_certificates.
+
+..
+
+.. bpo: 27066
+.. date: 9673
+.. nonce: SNExZi
+.. section: Core and Builtins
+
+Fixed SystemError if a custom opener (for open()) returns a negative number
+without setting an exception.
+
+..
+
+.. bpo: 20041
+.. date: 9672
+.. nonce: TypyGp
+.. section: Core and Builtins
+
+Fixed TypeError when frame.f_trace is set to None. Patch by Xavier de Gaye.
+
+..
+
+.. bpo: 26168
+.. date: 9671
+.. nonce: -nPBL6
+.. section: Core and Builtins
+
+Fixed possible refleaks in failing Py_BuildValue() with the "N" format unit.
+
+..
+
+.. bpo: 26991
+.. date: 9670
+.. nonce: yWGNhz
+.. section: Core and Builtins
+
+Fix possible refleak when creating a function with annotations.
+
+..
+
+.. bpo: 27039
+.. date: 9669
+.. nonce: Zj7tV7
+.. section: Core and Builtins
+
+Fixed bytearray.remove() for values greater than 127. Patch by Joe Jevnik.
+
+..
+
+.. bpo: 23640
+.. date: 9668
+.. nonce: kvNC4c
+.. section: Core and Builtins
+
+int.from_bytes() no longer bypasses constructors for subclasses.
+
+..
+
+.. bpo: 26811
+.. date: 9667
+.. nonce: oNzUWt
+.. section: Core and Builtins
+
+gc.get_objects() no longer contains a broken tuple with NULL pointer.
+
+..
+
+.. bpo: 20120
+.. date: 9666
+.. nonce: c-FZZc
+.. section: Core and Builtins
+
+Use RawConfigParser for .pypirc parsing, removing support for interpolation
+unintentionally added with move to Python 3. Behavior no longer does any
+interpolation in .pypirc files, matching behavior in Python 2.7 and
+Setuptools 19.0.
+
+..
+
+.. bpo: 26659
+.. date: 9665
+.. nonce: 5PRa83
+.. section: Core and Builtins
+
+Make the builtin slice type support cycle collection.
+
+..
+
+.. bpo: 26718
+.. date: 9664
+.. nonce: K5PQ8j
+.. section: Core and Builtins
+
+super.__init__ no longer leaks memory if called multiple times. NOTE: A
+direct call of super.__init__ is not endorsed!
+
+..
+
+.. bpo: 25339
+.. date: 9663
+.. nonce: ZcaC2E
+.. section: Core and Builtins
+
+PYTHONIOENCODING now has priority over locale in setting the error handler
+for stdin and stdout.
+
+..
+
+.. bpo: 26494
+.. date: 9662
+.. nonce: G6eXIi
+.. section: Core and Builtins
+
+Fixed crash on iterating exhausting iterators. Affected classes are generic
+sequence iterators, iterators of str, bytes, bytearray, list, tuple, set,
+frozenset, dict, OrderedDict, corresponding views and os.scandir() iterator.
+
+..
+
+.. bpo: 26581
+.. date: 9661
+.. nonce: yNA7nm
+.. section: Core and Builtins
+
+If coding cookie is specified multiple times on a line in Python source code
+file, only the first one is taken to account.
+
+..
+
+.. bpo: 26464
+.. date: 9660
+.. nonce: 7BreGz
+.. section: Core and Builtins
+
+Fix str.translate() when string is ASCII and first replacements removes
+character, but next replacement uses a non-ASCII character or a string
+longer than 1 character. Regression introduced in Python 3.5.0.
+
+..
+
+.. bpo: 22836
+.. date: 9659
+.. nonce: cimt1y
+.. section: Core and Builtins
+
+Ensure exception reports from PyErr_Display() and PyErr_WriteUnraisable()
+are sensible even when formatting them produces secondary errors. This
+affects the reports produced by sys.__excepthook__() and when __del__()
+raises an exception.
+
+..
+
+.. bpo: 26302
+.. date: 9658
+.. nonce: UD9XQt
+.. section: Core and Builtins
+
+Correct behavior to reject comma as a legal character for cookie names.
+
+..
+
+.. bpo: 4806
+.. date: 9657
+.. nonce: i9m3hj
+.. section: Core and Builtins
+
+Avoid masking the original TypeError exception when using star (``*``)
+unpacking in function calls. Based on patch by Hagen Fürstenau and Daniel
+Urban.
+
+..
+
+.. bpo: 27138
+.. date: 9656
+.. nonce: ifYEro
+.. section: Core and Builtins
+
+Fix the doc comment for FileFinder.find_spec().
+
+..
+
+.. bpo: 26154
+.. date: 9655
+.. nonce: MtnRAH
+.. section: Core and Builtins
+
+Add a new private _PyThreadState_UncheckedGet() function to get the current
+Python thread state, but don't issue a fatal error if it is NULL. This new
+function must be used instead of accessing directly the
+_PyThreadState_Current variable. The variable is no more exposed since
+Python 3.5.1 to hide the exact implementation of atomic C types, to avoid
+compiler issues.
+
+..
+
+.. bpo: 26194
+.. date: 9654
+.. nonce: j9zand
+.. section: Core and Builtins
+
+Deque.insert() gave odd results for bounded deques that had reached their
+maximum size. Now an IndexError will be raised when attempting to insert
+into a full deque.
+
+..
+
+.. bpo: 25843
+.. date: 9653
+.. nonce: t2kGug
+.. section: Core and Builtins
+
+When compiling code, don't merge constants if they are equal but have a
+different types. For example, ``f1, f2 = lambda: 1, lambda: 1.0`` is now
+correctly compiled to two different functions: ``f1()`` returns ``1``
+(``int``) and ``f2()`` returns ``1.0`` (``int``), even if ``1`` and ``1.0``
+are equal.
+
+..
+
+.. bpo: 22995
+.. date: 9652
+.. nonce: KYNKvs
+.. section: Core and Builtins
+
+[UPDATE] Comment out the one of the pickleability tests in
+_PyObject_GetState() due to regressions observed in Cython-based projects.
+
+..
+
+.. bpo: 25961
+.. date: 9651
+.. nonce: Hdjjw0
+.. section: Core and Builtins
+
+Disallowed null characters in the type name.
+
+..
+
+.. bpo: 25973
+.. date: 9650
+.. nonce: Ud__ZP
+.. section: Core and Builtins
+
+Fix segfault when an invalid nonlocal statement binds a name starting with
+two underscores.
+
+..
+
+.. bpo: 22995
+.. date: 9649
+.. nonce: Wq0E86
+.. section: Core and Builtins
+
+Instances of extension types with a state that aren't subclasses of list or
+dict and haven't implemented any pickle-related methods (__reduce__,
+__reduce_ex__, __getnewargs__, __getnewargs_ex__, or __getstate__), can no
+longer be pickled. Including memoryview.
+
+..
+
+.. bpo: 20440
+.. date: 9648
+.. nonce: GCwOfH
+.. section: Core and Builtins
+
+Massive replacing unsafe attribute setting code with special macro
+Py_SETREF.
+
+..
+
+.. bpo: 25766
+.. date: 9647
+.. nonce: jn93Yu
+.. section: Core and Builtins
+
+Special method __bytes__() now works in str subclasses.
+
+..
+
+.. bpo: 25421
+.. date: 9646
+.. nonce: c47YEL
+.. section: Core and Builtins
+
+__sizeof__ methods of builtin types now use dynamic basic size. This allows
+sys.getsize() to work correctly with their subclasses with __slots__
+defined.
+
+..
+
+.. bpo: 25709
+.. date: 9645
+.. nonce: WwGm2k
+.. section: Core and Builtins
+
+Fixed problem with in-place string concatenation and utf-8 cache.
+
+..
+
+.. bpo: 27147
+.. date: 9644
+.. nonce: tCCgmH
+.. section: Core and Builtins
+
+Mention :pep:`420` in the importlib docs.
+
+..
+
+.. bpo: 24097
+.. date: 9643
+.. nonce: Vt4E-i
+.. section: Core and Builtins
+
+Fixed crash in object.__reduce__() if slot name is freed inside __getattr__.
+
+..
+
+.. bpo: 24731
+.. date: 9642
+.. nonce: h9-hnz
+.. section: Core and Builtins
+
+Fixed crash on converting objects with special methods __bytes__, __trunc__,
+and __float__ returning instances of subclasses of bytes, int, and float to
+subclasses of bytes, int, and float correspondingly.
+
+..
+
+.. bpo: 26478
+.. date: 9641
+.. nonce: n0dB8e
+.. section: Core and Builtins
+
+Fix semantic bugs when using binary operators with dictionary views and
+tuples.
+
+..
+
+.. bpo: 26171
+.. date: 9640
+.. nonce: 8SaQEa
+.. section: Core and Builtins
+
+Fix possible integer overflow and heap corruption in zipimporter.get_data().
+
+..
+
+.. bpo: 25660
+.. date: 9639
+.. nonce: 93DzBo
+.. section: Core and Builtins
+
+Fix TAB key behaviour in REPL with readline.
+
+..
+
+.. bpo: 25887
+.. date: 9638
+.. nonce: PtVIX7
+.. section: Core and Builtins
+
+Raise a RuntimeError when a coroutine object is awaited more than once.
+
+..
+
+.. bpo: 27243
+.. date: 9637
+.. nonce: U36M4E
+.. section: Core and Builtins
+
+Update the __aiter__ protocol: instead of returning an awaitable that
+resolves to an asynchronous iterator, the asynchronous iterator should be
+returned directly. Doing the former will trigger a
+PendingDeprecationWarning.
+
+..
+
+.. bpo: 21386
+.. date: 9634
+.. nonce: DjV72U
+.. section: Library
+
+Implement missing IPv4Address.is_global property. It was documented since
+07a5610bae9d. Initial patch by Roger Luethi.
+
+..
+
+.. bpo: 20900
+.. date: 9633
+.. nonce: H5YQPR
+.. section: Library
+
+distutils register command now decodes HTTP responses correctly. Initial
+patch by ingrid.
+
+..
+
+.. bpo: 0
+.. date: 9632
+.. nonce: iYIeng
+.. section: Library
+
+A new version of typing.py provides several new classes and features:
+@overload outside stubs, Reversible, DefaultDict, Text, ContextManager,
+Type[], NewType(), TYPE_CHECKING, and numerous bug fixes (note that some of
+the new features are not yet implemented in mypy or other static analyzers).
+Also classes for :pep:`492` (Awaitable, AsyncIterable, AsyncIterator) have been
+added (in fact they made it into 3.5.1 but were never mentioned).
+
+..
+
+.. bpo: 25738
+.. date: 9631
+.. nonce: mED9w4
+.. section: Library
+
+Stop http.server.BaseHTTPRequestHandler.send_error() from sending a message
+body for 205 Reset Content. Also, don't send Content header fields in
+responses that don't have a body. Patch by Susumu Koshiba.
+
+..
+
+.. bpo: 21313
+.. date: 9630
+.. nonce: W30MBr
+.. section: Library
+
+Fix the "platform" module to tolerate when sys.version contains truncated
+build information.
+
+..
+
+.. bpo: 27164
+.. date: 9628
+.. nonce: 6wmjx2
+.. section: Library
+
+In the zlib module, allow decompressing raw Deflate streams with a
+predefined zdict. Based on patch by Xiang Zhang.
+
+..
+
+.. bpo: 24291
+.. date: 9627
+.. nonce: Ac6HvL
+.. section: Library
+
+Fix wsgiref.simple_server.WSGIRequestHandler to completely write data to the
+client. Previously it could do partial writes and truncate data. Also,
+wsgiref.handler.ServerHandler can now handle stdout doing partial writes,
+but this is deprecated.
+
+..
+
+.. bpo: 26809
+.. date: 9626
+.. nonce: ya7JMb
+.. section: Library
+
+Add ``__all__`` to :mod:`string`. Patch by Emanuel Barry.
+
+..
+
+.. bpo: 26373
+.. date: 9625
+.. nonce: P6qz6o
+.. section: Library
+
+subprocess.Popen.communicate now correctly ignores BrokenPipeError when the
+child process dies before .communicate() is called in more/all
+circumstances.
+
+..
+
+.. bpo: 21776
+.. date: 9624
+.. nonce: 04eQfa
+.. section: Library
+
+distutils.upload now correctly handles HTTPError. Initial patch by Claudiu
+Popa.
+
+..
+
+.. bpo: 27114
+.. date: 9623
+.. nonce: bGCuAM
+.. section: Library
+
+Fix SSLContext._load_windows_store_certs fails with PermissionError
+
+..
+
+.. bpo: 18383
+.. date: 9622
+.. nonce: jr-b0l
+.. section: Library
+
+Avoid creating duplicate filters when using filterwarnings and simplefilter.
+Based on patch by Alex Shkop.
+
+..
+
+.. bpo: 27057
+.. date: 9621
+.. nonce: YzTA_Q
+.. section: Library
+
+Fix os.set_inheritable() on Android, ioctl() is blocked by SELinux and fails
+with EACCESS. The function now falls back to fcntl(). Patch written by
+Michał Bednarski.
+
+..
+
+.. bpo: 27014
+.. date: 9620
+.. nonce: ui7Khn
+.. section: Library
+
+Fix infinite recursion using typing.py. Thanks to Kalle Tuure!
+
+..
+
+.. bpo: 14132
+.. date: 9619
+.. nonce: 5wR9MN
+.. section: Library
+
+Fix urllib.request redirect handling when the target only has a query
+string. Original fix by Ján Janech.
+
+..
+
+.. bpo: 17214
+.. date: 9618
+.. nonce: lUbZOV
+.. section: Library
+
+The "urllib.request" module now percent-encodes non-ASCII bytes found in
+redirect target URLs. Some servers send Location header fields with
+non-ASCII bytes, but "http.client" requires the request target to be
+ASCII-encodable, otherwise a UnicodeEncodeError is raised. Based on patch by
+Christian Heimes.
+
+..
+
+.. bpo: 26892
+.. date: 9617
+.. nonce: XIXb0h
+.. section: Library
+
+Honor debuglevel flag in urllib.request.HTTPHandler. Patch contributed by
+Chi Hsuan Yen.
+
+..
+
+.. bpo: 22274
+.. date: 9616
+.. nonce: 0RHDMN
+.. section: Library
+
+In the subprocess module, allow stderr to be redirected to stdout even when
+stdout is not redirected. Patch by Akira Li.
+
+..
+
+.. bpo: 26807
+.. date: 9615
+.. nonce: LXSPP6
+.. section: Library
+
+mock_open 'files' no longer error on readline at end of file. Patch from
+Yolanda Robla.
+
+..
+
+.. bpo: 25745
+.. date: 9614
+.. nonce: -n8acU
+.. section: Library
+
+Fixed leaking a userptr in curses panel destructor.
+
+..
+
+.. bpo: 26977
+.. date: 9613
+.. nonce: 5G4HtL
+.. section: Library
+
+Removed unnecessary, and ignored, call to sum of squares helper in
+statistics.pvariance.
+
+..
+
+.. bpo: 26881
+.. date: 9612
+.. nonce: mdiq_L
+.. section: Library
+
+The modulefinder module now supports extended opcode arguments.
+
+..
+
+.. bpo: 23815
+.. date: 9611
+.. nonce: _krNe8
+.. section: Library
+
+Fixed crashes related to directly created instances of types in _tkinter and
+curses.panel modules.
+
+..
+
+.. bpo: 17765
+.. date: 9610
+.. nonce: hiSVS1
+.. section: Library
+
+weakref.ref() no longer silently ignores keyword arguments. Patch by Georg
+Brandl.
+
+..
+
+.. bpo: 26873
+.. date: 9609
+.. nonce: cYXRcH
+.. section: Library
+
+xmlrpc now raises ResponseError on unsupported type tags instead of silently
+return incorrect result.
+
+..
+
+.. bpo: 26711
+.. date: 9608
+.. nonce: Eu85Qw
+.. section: Library
+
+Fixed the comparison of plistlib.Data with other types.
+
+..
+
+.. bpo: 24114
+.. date: 9607
+.. nonce: RMRMtM
+.. section: Library
+
+Fix an uninitialized variable in `ctypes.util`.
+The bug only occurs on SunOS when the ctypes implementation searches for the
+`crle` program. Patch by Xiang Zhang. Tested on SunOS by Kees Bos.
+
+..
+
+.. bpo: 26864
+.. date: 9606
+.. nonce: 1KgGds
+.. section: Library
+
+In urllib.request, change the proxy bypass host checking against no_proxy to
+be case-insensitive, and to not match unrelated host names that happen to
+have a bypassed hostname as a suffix. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 26634
+.. date: 9605
+.. nonce: FZvsSb
+.. section: Library
+
+recursive_repr() now sets __qualname__ of wrapper. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 26804
+.. date: 9604
+.. nonce: 9Orp-G
+.. section: Library
+
+urllib.request will prefer lower_case proxy environment variables over
+UPPER_CASE or Mixed_Case ones. Patch contributed by Hans-Peter Jansen.
+
+..
+
+.. bpo: 26837
+.. date: 9603
+.. nonce: 2FXGsD
+.. section: Library
+
+assertSequenceEqual() now correctly outputs non-stringified differing items
+(like bytes in the -b mode). This affects assertListEqual() and
+assertTupleEqual().
+
+..
+
+.. bpo: 26041
+.. date: 9602
+.. nonce: bVem-p
+.. section: Library
+
+Remove "will be removed in Python 3.7" from deprecation messages of
+platform.dist() and platform.linux_distribution(). Patch by Kumaripaba
+Miyurusara Athukorala.
+
+..
+
+.. bpo: 26822
+.. date: 9601
+.. nonce: rYSL4W
+.. section: Library
+
+itemgetter, attrgetter and methodcaller objects no longer silently ignore
+keyword arguments.
+
+..
+
+.. bpo: 26733
+.. date: 9600
+.. nonce: YxaJmL
+.. section: Library
+
+Disassembling a class now disassembles class and static methods. Patch by
+Xiang Zhang.
+
+..
+
+.. bpo: 26801
+.. date: 9599
+.. nonce: TQGY-7
+.. section: Library
+
+Fix error handling in :func:`shutil.get_terminal_size`, catch
+:exc:`AttributeError` instead of :exc:`NameError`. Patch written by Emanuel
+Barry.
+
+..
+
+.. bpo: 24838
+.. date: 9598
+.. nonce: 3Pfx8T
+.. section: Library
+
+tarfile's ustar and gnu formats now correctly calculate name and link field
+limits for multibyte character encodings like utf-8.
+
+..
+
+.. bpo: 26717
+.. date: 9596
+.. nonce: jngTdu
+.. section: Library
+
+Stop encoding Latin-1-ized WSGI paths with UTF-8. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 26735
+.. date: 9595
+.. nonce: riSl3b
+.. section: Library
+
+Fix :func:`os.urandom` on Solaris 11.3 and newer when reading more than
+1,024 bytes: call ``getrandom()`` multiple times with a limit of 1024 bytes
+per call.
+
+..
+
+.. bpo: 16329
+.. date: 9594
+.. nonce: nuXD8W
+.. section: Library
+
+Add .webm to mimetypes.types_map. Patch by Giampaolo Rodola'.
+
+..
+
+.. bpo: 13952
+.. date: 9593
+.. nonce: SOoTVE
+.. section: Library
+
+Add .csv to mimetypes.types_map. Patch by Geoff Wilson.
+
+..
+
+.. bpo: 26709
+.. date: 9592
+.. nonce: luOPbP
+.. section: Library
+
+Fixed Y2038 problem in loading binary PLists.
+
+..
+
+.. bpo: 23735
+.. date: 9591
+.. nonce: Y5oQ9r
+.. section: Library
+
+Handle terminal resizing with Readline 6.3+ by installing our own SIGWINCH
+handler. Patch by Eric Price.
+
+..
+
+.. bpo: 26586
+.. date: 9590
+.. nonce: V5pZNa
+.. section: Library
+
+In http.server, respond with "413 Request header fields too large" if there
+are too many header fields to parse, rather than killing the connection and
+raising an unhandled exception. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 22854
+.. date: 9589
+.. nonce: K3rMEH
+.. section: Library
+
+Change BufferedReader.writable() and BufferedWriter.readable() to always
+return False.
+
+..
+
+.. bpo: 25195
+.. date: 9588
+.. nonce: EOc4Po
+.. section: Library
+
+Fix a regression in mock.MagicMock. _Call is a subclass of tuple (changeset
+3603bae63c13 only works for classes) so we need to implement __ne__
+ourselves. Patch by Andrew Plummer.
+
+..
+
+.. bpo: 26644
+.. date: 9587
+.. nonce: 7tt1tk
+.. section: Library
+
+Raise ValueError rather than SystemError when a negative length is passed to
+SSLSocket.recv() or read().
+
+..
+
+.. bpo: 23804
+.. date: 9586
+.. nonce: PP63Ff
+.. section: Library
+
+Fix SSL recv(0) and read(0) methods to return zero bytes instead of up to
+1024.
+
+..
+
+.. bpo: 26616
+.. date: 9585
+.. nonce: v3QwdD
+.. section: Library
+
+Fixed a bug in datetime.astimezone() method.
+
+..
+
+.. bpo: 21925
+.. date: 9584
+.. nonce: _fr69L
+.. section: Library
+
+:func:`warnings.formatwarning` now catches exceptions on
+``linecache.getline(...)`` to be able to log :exc:`ResourceWarning` emitted
+late during the Python shutdown process.
+
+..
+
+.. bpo: 24266
+.. date: 9583
+.. nonce: YZgVyM
+.. section: Library
+
+Ctrl+C during Readline history search now cancels the search mode when
+compiled with Readline 7.
+
+..
+
+.. bpo: 26560
+.. date: 9582
+.. nonce: A4WXNz
+.. section: Library
+
+Avoid potential ValueError in BaseHandler.start_response. Initial patch by
+Peter Inglesby.
+
+..
+
+.. bpo: 26569
+.. date: 9580
+.. nonce: EX8vF1
+.. section: Library
+
+Fix :func:`pyclbr.readmodule` and :func:`pyclbr.readmodule_ex` to support
+importing packages.
+
+..
+
+.. bpo: 26499
+.. date: 9579
+.. nonce: NP08PI
+.. section: Library
+
+Account for remaining Content-Length in HTTPResponse.readline() and read1().
+Based on patch by Silent Ghost. Also document that HTTPResponse now supports
+these methods.
+
+..
+
+.. bpo: 25320
+.. date: 9578
+.. nonce: V96LIy
+.. section: Library
+
+Handle sockets in directories unittest discovery is scanning. Patch from
+Victor van den Elzen.
+
+..
+
+.. bpo: 16181
+.. date: 9577
+.. nonce: P7lLvo
+.. section: Library
+
+cookiejar.http2time() now returns None if year is higher than
+datetime.MAXYEAR.
+
+..
+
+.. bpo: 26513
+.. date: 9576
+.. nonce: HoPepy
+.. section: Library
+
+Fixes platform module detection of Windows Server
+
+..
+
+.. bpo: 23718
+.. date: 9575
+.. nonce: AMPC0o
+.. section: Library
+
+Fixed parsing time in week 0 before Jan 1. Original patch by Tamás Bence
+Gedai.
+
+..
+
+.. bpo: 20589
+.. date: 9574
+.. nonce: NsQ_I1
+.. section: Library
+
+Invoking Path.owner() and Path.group() on Windows now raise
+NotImplementedError instead of ImportError.
+
+..
+
+.. bpo: 26177
+.. date: 9573
+.. nonce: HlSWer
+.. section: Library
+
+Fixed the keys() method for Canvas and Scrollbar widgets.
+
+..
+
+.. bpo: 15068
+.. date: 9572
+.. nonce: bcHtiw
+.. section: Library
+
+Got rid of excessive buffering in the fileinput module. The bufsize
+parameter is no longer used.
+
+..
+
+.. bpo: 2202
+.. date: 9571
+.. nonce: dk9sd0
+.. section: Library
+
+Fix UnboundLocalError in AbstractDigestAuthHandler.get_algorithm_impls.
+Initial patch by Mathieu Dupuy.
+
+..
+
+.. bpo: 25718
+.. date: 9570
+.. nonce: 4EjZyv
+.. section: Library
+
+Fixed pickling and copying the accumulate() iterator with total is None.
+
+..
+
+.. bpo: 26475
+.. date: 9569
+.. nonce: JXVccY
+.. section: Library
+
+Fixed debugging output for regular expressions with the (?x) flag.
+
+..
+
+.. bpo: 26457
+.. date: 9568
+.. nonce: Xe6Clh
+.. section: Library
+
+Fixed the subnets() methods in IP network classes for the case when
+resulting prefix length is equal to maximal prefix length. Based on patch by
+Xiang Zhang.
+
+..
+
+.. bpo: 26385
+.. date: 9567
+.. nonce: 50bDXm
+.. section: Library
+
+Remove the file if the internal open() call in NamedTemporaryFile() fails.
+Patch by Silent Ghost.
+
+..
+
+.. bpo: 26402
+.. date: 9566
+.. nonce: k7DVuU
+.. section: Library
+
+Fix XML-RPC client to retry when the server shuts down a persistent
+connection. This was a regression related to the new
+http.client.RemoteDisconnected exception in 3.5.0a4.
+
+..
+
+.. bpo: 25913
+.. date: 9565
+.. nonce: 5flb95
+.. section: Library
+
+Leading ``<~`` is optional now in base64.a85decode() with adobe=True. Patch
+by Swati Jaiswal.
+
+..
+
+.. bpo: 26186
+.. date: 9564
+.. nonce: R9rfiL
+.. section: Library
+
+Remove an invalid type check in importlib.util.LazyLoader.
+
+..
+
+.. bpo: 26367
+.. date: 9563
+.. nonce: ckpNeU
+.. section: Library
+
+importlib.__import__() raises SystemError like builtins.__import__() when
+``level`` is specified but without an accompanying package specified.
+
+..
+
+.. bpo: 26309
+.. date: 9562
+.. nonce: ubEeiz
+.. section: Library
+
+In the "socketserver" module, shut down the request (closing the connected
+socket) when verify_request() returns false. Patch by Aviv Palivoda.
+
+..
+
+.. bpo: 25995
+.. date: 9560
+.. nonce: NfcimP
+.. section: Library
+
+os.walk() no longer uses FDs proportional to the tree depth.
+
+..
+
+.. bpo: 26117
+.. date: 9559
+.. nonce: ne6p11
+.. section: Library
+
+The os.scandir() iterator now closes file descriptor not only when the
+iteration is finished, but when it was failed with error.
+
+..
+
+.. bpo: 25911
+.. date: 9558
+.. nonce: d4Zadh
+.. section: Library
+
+Restored support of bytes paths in os.walk() on Windows.
+
+..
+
+.. bpo: 26045
+.. date: 9557
+.. nonce: WmzUrX
+.. section: Library
+
+Add UTF-8 suggestion to error message when posting a non-Latin-1 string with
+http.client.
+
+..
+
+.. bpo: 12923
+.. date: 9556
+.. nonce: HPAu-B
+.. section: Library
+
+Reset FancyURLopener's redirect counter even if there is an exception.
+Based on patches by Brian Brazil and Daniel Rocco.
+
+..
+
+.. bpo: 25945
+.. date: 9555
+.. nonce: guNgNM
+.. section: Library
+
+Fixed a crash when unpickle the functools.partial object with wrong state.
+Fixed a leak in failed functools.partial constructor. "args" and "keywords"
+attributes of functools.partial have now always types tuple and dict
+correspondingly.
+
+..
+
+.. bpo: 26202
+.. date: 9554
+.. nonce: LPIXLg
+.. section: Library
+
+copy.deepcopy() now correctly copies range() objects with non-atomic
+attributes.
+
+..
+
+.. bpo: 23076
+.. date: 9553
+.. nonce: 8rphoP
+.. section: Library
+
+Path.glob() now raises a ValueError if it's called with an invalid pattern.
+Patch by Thomas Nyberg.
+
+..
+
+.. bpo: 19883
+.. date: 9552
+.. nonce: z9TsO6
+.. section: Library
+
+Fixed possible integer overflows in zipimport.
+
+..
+
+.. bpo: 26227
+.. date: 9551
+.. nonce: Fe6oiB
+.. section: Library
+
+On Windows, getnameinfo(), gethostbyaddr() and gethostbyname_ex() functions
+of the socket module now decode the hostname from the ANSI code page rather
+than UTF-8.
+
+..
+
+.. bpo: 26147
+.. date: 9550
+.. nonce: i-Jc01
+.. section: Library
+
+xmlrpc now works with strings not encodable with used non-UTF-8 encoding.
+
+..
+
+.. bpo: 25935
+.. date: 9549
+.. nonce: cyni91
+.. section: Library
+
+Garbage collector now breaks reference loops with OrderedDict.
+
+..
+
+.. bpo: 16620
+.. date: 9548
+.. nonce: rxpn_Y
+.. section: Library
+
+Fixed AttributeError in msilib.Directory.glob().
+
+..
+
+.. bpo: 26013
+.. date: 9547
+.. nonce: 93RKNz
+.. section: Library
+
+Added compatibility with broken protocol 2 pickles created in old Python 3
+versions (3.4.3 and lower).
+
+..
+
+.. bpo: 25850
+.. date: 9546
+.. nonce: jwFPxj
+.. section: Library
+
+Use cross-compilation by default for 64-bit Windows.
+
+..
+
+.. bpo: 17633
+.. date: 9545
+.. nonce: 9mpbUO
+.. section: Library
+
+Improve zipimport's support for namespace packages.
+
+..
+
+.. bpo: 24705
+.. date: 9544
+.. nonce: IZYwjR
+.. section: Library
+
+Fix sysconfig._parse_makefile not expanding ${} vars appearing before $()
+vars.
+
+..
+
+.. bpo: 22138
+.. date: 9543
+.. nonce: nRNYkc
+.. section: Library
+
+Fix mock.patch behavior when patching descriptors. Restore original values
+after patching. Patch contributed by Sean McCully.
+
+..
+
+.. bpo: 25672
+.. date: 9542
+.. nonce: fw9RJP
+.. section: Library
+
+In the ssl module, enable the SSL_MODE_RELEASE_BUFFERS mode option if it is
+safe to do so.
+
+..
+
+.. bpo: 26012
+.. date: 9541
+.. nonce: IFSXNm
+.. section: Library
+
+Don't traverse into symlinks for ``**`` pattern in pathlib.Path.[r]glob().
+
+..
+
+.. bpo: 24120
+.. date: 9540
+.. nonce: Yiwa0h
+.. section: Library
+
+Ignore PermissionError when traversing a tree with pathlib.Path.[r]glob().
+Patch by Ulrich Petri.
+
+..
+
+.. bpo: 25447
+.. date: 9539
+.. nonce: -4m4xO
+.. section: Library
+
+fileinput now uses sys.stdin as-is if it does not have a buffer attribute
+(restores backward compatibility).
+
+..
+
+.. bpo: 25447
+.. date: 9538
+.. nonce: AtHkWA
+.. section: Library
+
+Copying the lru_cache() wrapper object now always works, independently from
+the type of the wrapped object (by returning the original object unchanged).
+
+..
+
+.. bpo: 24103
+.. date: 9537
+.. nonce: WufqrQ
+.. section: Library
+
+Fixed possible use after free in ElementTree.XMLPullParser.
+
+..
+
+.. bpo: 25860
+.. date: 9536
+.. nonce: 0hActb
+.. section: Library
+
+os.fwalk() no longer skips remaining directories when error occurs.
+Original patch by Samson Lee.
+
+..
+
+.. bpo: 25914
+.. date: 9535
+.. nonce: h0V61F
+.. section: Library
+
+Fixed and simplified OrderedDict.__sizeof__.
+
+..
+
+.. bpo: 25902
+.. date: 9534
+.. nonce: 6t2FmH
+.. section: Library
+
+Fixed various refcount issues in ElementTree iteration.
+
+..
+
+.. bpo: 25717
+.. date: 9533
+.. nonce: 0_xjaK
+.. section: Library
+
+Restore the previous behaviour of tolerating most fstat() errors when
+opening files. This was a regression in 3.5a1, and stopped anonymous
+temporary files from working in special cases.
+
+..
+
+.. bpo: 24903
+.. date: 9532
+.. nonce: 3LBdzb
+.. section: Library
+
+Fix regression in number of arguments compileall accepts when '-d' is
+specified. The check on the number of arguments has been dropped completely
+as it never worked correctly anyway.
+
+..
+
+.. bpo: 25764
+.. date: 9531
+.. nonce: 7WWG07
+.. section: Library
+
+In the subprocess module, preserve any exception caused by fork() failure
+when preexec_fn is used.
+
+..
+
+.. bpo: 6478
+.. date: 9530
+.. nonce: -Bi9Hb
+.. section: Library
+
+_strptime's regexp cache now is reset after changing timezone with
+time.tzset().
+
+..
+
+.. bpo: 14285
+.. date: 9529
+.. nonce: UyG8Hj
+.. section: Library
+
+When executing a package with the "python -m package" option, and package
+initialization fails, a proper traceback is now reported. The "runpy"
+module now lets exceptions from package initialization pass back to the
+caller, rather than raising ImportError.
+
+..
+
+.. bpo: 19771
+.. date: 9528
+.. nonce: 5NG-bg
+.. section: Library
+
+Also in runpy and the "-m" option, omit the irrelevant message ". . . is a
+package and cannot be directly executed" if the package could not even be
+initialized (e.g. due to a bad ``*.pyc`` file).
+
+..
+
+.. bpo: 25177
+.. date: 9527
+.. nonce: aNR4Ha
+.. section: Library
+
+Fixed problem with the mean of very small and very large numbers. As a side
+effect, statistics.mean and statistics.variance should be significantly
+faster.
+
+..
+
+.. bpo: 25718
+.. date: 9526
+.. nonce: D9mHZF
+.. section: Library
+
+Fixed copying object with state with boolean value is false.
+
+..
+
+.. bpo: 10131
+.. date: 9525
+.. nonce: a7tptz
+.. section: Library
+
+Fixed deep copying of minidom documents. Based on patch by Marian Ganisin.
+
+..
+
+.. bpo: 25725
+.. date: 9524
+.. nonce: XIKv3R
+.. section: Library
+
+Fixed a reference leak in pickle.loads() when unpickling invalid data
+including tuple instructions.
+
+..
+
+.. bpo: 25663
+.. date: 9523
+.. nonce: Ofwfqa
+.. section: Library
+
+In the Readline completer, avoid listing duplicate global names, and search
+the global namespace before searching builtins.
+
+..
+
+.. bpo: 25688
+.. date: 9522
+.. nonce: 8P1HOv
+.. section: Library
+
+Fixed file leak in ElementTree.iterparse() raising an error.
+
+..
+
+.. bpo: 23914
+.. date: 9521
+.. nonce: 1sEz4J
+.. section: Library
+
+Fixed SystemError raised by unpickler on broken pickle data.
+
+..
+
+.. bpo: 25691
+.. date: 9520
+.. nonce: ZEaapY
+.. section: Library
+
+Fixed crash on deleting ElementTree.Element attributes.
+
+..
+
+.. bpo: 25624
+.. date: 9519
+.. nonce: ed-fM0
+.. section: Library
+
+ZipFile now always writes a ZIP_STORED header for directory entries. Patch
+by Dingyuan Wang.
+
+..
+
+.. bpo: 0
+.. date: 9518
+.. nonce: rtZyid
+.. section: Library
+
+Skip getaddrinfo if host is already resolved. Patch by A. Jesse Jiryu Davis.
+
+..
+
+.. bpo: 26050
+.. date: 9517
+.. nonce: sclyvk
+.. section: Library
+
+Add asyncio.StreamReader.readuntil() method. Patch by Марк Коренберг.
+
+..
+
+.. bpo: 25924
+.. date: 9516
+.. nonce: Uxr2vt
+.. section: Library
+
+Avoid unnecessary serialization of getaddrinfo(3) calls on OS X versions
+10.5 or higher. Original patch by A. Jesse Jiryu Davis.
+
+..
+
+.. bpo: 26406
+.. date: 9515
+.. nonce: ihvhF4
+.. section: Library
+
+Avoid unnecessary serialization of getaddrinfo(3) calls on current versions
+of OpenBSD and NetBSD. Patch by A. Jesse Jiryu Davis.
+
+..
+
+.. bpo: 26848
+.. date: 9514
+.. nonce: ChBOpQ
+.. section: Library
+
+Fix asyncio/subprocess.communicate() to handle empty input. Patch by Jack
+O'Connor.
+
+..
+
+.. bpo: 27040
+.. date: 9513
+.. nonce: UASyCC
+.. section: Library
+
+Add loop.get_exception_handler method
+
+..
+
+.. bpo: 27041
+.. date: 9512
+.. nonce: p3893U
+.. section: Library
+
+asyncio: Add loop.create_future method
+
+..
+
+.. bpo: 27223
+.. date: 9511
+.. nonce: PRf4I6
+.. section: Library
+
+asyncio: Fix _read_ready and _write_ready to respect _conn_lost. Patch by
+Łukasz Langa.
+
+..
+
+.. bpo: 22970
+.. date: 9510
+.. nonce: WhdhyM
+.. section: Library
+
+asyncio: Fix inconsistency cancelling Condition.wait. Patch by David Coles.
+
+..
+
+.. bpo: 5124
+.. date: 9509
+.. nonce: 4kwBvM
+.. section: IDLE
+
+Paste with text selected now replaces the selection on X11. This matches how
+paste works on Windows, Mac, most modern Linux apps, and ttk widgets.
+Original patch by Serhiy Storchaka.
+
+..
+
+.. bpo: 24759
+.. date: 9508
+.. nonce: ccmySu
+.. section: IDLE
+
+Make clear in idlelib.idle_test.__init__ that the directory is a private
+implementation of test.test_idle and tool for maintainers.
+
+..
+
+.. bpo: 27196
+.. date: 9507
+.. nonce: 3yp8TF
+.. section: IDLE
+
+Stop 'ThemeChanged' warnings when running IDLE tests. These persisted after
+other warnings were suppressed in #20567. Apply Serhiy Storchaka's
+update_idletasks solution to four test files. Record this additional advice
+in idle_test/README.txt
+
+..
+
+.. bpo: 20567
+.. date: 9506
+.. nonce: hhT32b
+.. section: IDLE
+
+Revise idle_test/README.txt with advice about avoiding tk warning messages
+from tests. Apply advice to several IDLE tests.
+
+..
+
+.. bpo: 27117
+.. date: 9505
+.. nonce: YrLPf4
+.. section: IDLE
+
+Make colorizer htest and turtledemo work with dark themes. Move code for
+configuring text widget colors to a new function.
+
+..
+
+.. bpo: 26673
+.. date: 9504
+.. nonce: dh0_Ij
+.. section: IDLE
+
+When tk reports font size as 0, change to size 10. Such fonts on Linux
+prevented the configuration dialog from opening.
+
+..
+
+.. bpo: 21939
+.. date: 9503
+.. nonce: pWz-OK
+.. section: IDLE
+
+Add test for IDLE's percolator. Original patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 21676
+.. date: 9502
+.. nonce: hqy6Qh
+.. section: IDLE
+
+Add test for IDLE's replace dialog. Original patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 18410
+.. date: 9501
+.. nonce: DLSPZo
+.. section: IDLE
+
+Add test for IDLE's search dialog. Original patch by Westley Martínez.
+
+..
+
+.. bpo: 21703
+.. date: 9500
+.. nonce: BAZfDM
+.. section: IDLE
+
+Add test for IDLE's undo delegator. Original patch by Saimadhav Heblikar .
+
+..
+
+.. bpo: 27044
+.. date: 9499
+.. nonce: 4y7tyM
+.. section: IDLE
+
+Add ConfigDialog.remove_var_callbacks to stop memory leaks.
+
+..
+
+.. bpo: 23977
+.. date: 9498
+.. nonce: miDjj8
+.. section: IDLE
+
+Add more asserts to test_delegator.
+
+..
+
+.. bpo: 20640
+.. date: 9497
+.. nonce: PmI-G8
+.. section: IDLE
+
+Add tests for idlelib.configHelpSourceEdit. Patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 0
+.. date: 9496
+.. nonce: _YJfG7
+.. section: IDLE
+
+In the 'IDLE-console differences' section of the IDLE doc, clarify how
+running with IDLE affects sys.modules and the standard streams.
+
+..
+
+.. bpo: 25507
+.. date: 9495
+.. nonce: i8bNpk
+.. section: IDLE
+
+fix incorrect change in IOBinding that prevented printing. Augment IOBinding
+htest to include all major IOBinding functions.
+
+..
+
+.. bpo: 25905
+.. date: 9494
+.. nonce: FzNb3B
+.. section: IDLE
+
+Revert unwanted conversion of ' to ’ RIGHT SINGLE QUOTATION MARK in
+README.txt and open this and NEWS.txt with 'ascii'. Re-encode CREDITS.txt to
+utf-8 and open it with 'utf-8'.
+
+..
+
+.. bpo: 19489
+.. date: 9493
+.. nonce: jvzuO7
+.. section: Documentation
+
+Moved the search box from the sidebar to the header and footer of each page.
+Patch by Ammar Askar.
+
+..
+
+.. bpo: 24136
+.. date: 9492
+.. nonce: MUK0zK
+.. section: Documentation
+
+Document the new :pep:`448` unpacking syntax of 3.5.
+
+..
+
+.. bpo: 26736
+.. date: 9491
+.. nonce: U_Hyqo
+.. section: Documentation
+
+Used HTTPS for external links in the documentation if possible.
+
+..
+
+.. bpo: 6953
+.. date: 9490
+.. nonce: Zk6rno
+.. section: Documentation
+
+Rework the Readline module documentation to group related functions
+together, and add more details such as what underlying Readline functions
+and variables are accessed.
+
+..
+
+.. bpo: 23606
+.. date: 9489
+.. nonce: 9MhIso
+.. section: Documentation
+
+Adds note to ctypes documentation regarding cdll.msvcrt.
+
+..
+
+.. bpo: 25500
+.. date: 9488
+.. nonce: AV47eF
+.. section: Documentation
+
+Fix documentation to not claim that __import__ is searched for in the global
+scope.
+
+..
+
+.. bpo: 26014
+.. date: 9487
+.. nonce: ptdZ_I
+.. section: Documentation
+
+Update 3.x packaging documentation: * "See also" links to the new docs are
+now provided in the legacy pages * links to setuptools documentation have
+been updated
+
+..
+
+.. bpo: 21916
+.. date: 9486
+.. nonce: muwCyp
+.. section: Tests
+
+Added tests for the turtle module. Patch by ingrid, Gregory Loyse and Jelle
+Zijlstra.
+
+..
+
+.. bpo: 26523
+.. date: 9485
+.. nonce: em_Uzt
+.. section: Tests
+
+The multiprocessing thread pool (multiprocessing.dummy.Pool) was untested.
+
+..
+
+.. bpo: 26015
+.. date: 9484
+.. nonce: p3oWK3
+.. section: Tests
+
+Added new tests for pickling iterators of mutable sequences.
+
+..
+
+.. bpo: 26325
+.. date: 9483
+.. nonce: KOUc82
+.. section: Tests
+
+Added test.support.check_no_resource_warning() to check that no
+ResourceWarning is emitted.
+
+..
+
+.. bpo: 25940
+.. date: 9482
+.. nonce: PgiLVN
+.. section: Tests
+
+Changed test_ssl to use self-signed.pythontest.net. This avoids relying on
+svn.python.org, which recently changed root certificate.
+
+..
+
+.. bpo: 25616
+.. date: 9481
+.. nonce: Qr-60p
+.. section: Tests
+
+Tests for OrderedDict are extracted from test_collections into separate file
+test_ordered_dict.
+
+..
+
+.. bpo: 26583
+.. date: 9480
+.. nonce: Up7hTl
+.. section: Tests
+
+Skip test_timestamp_overflow in test_import if bytecode files cannot be
+written.
+
+..
+
+.. bpo: 26884
+.. date: 9479
+.. nonce: O8-azL
+.. section: Build
+
+Fix linking extension modules for cross builds. Patch by Xavier de Gaye.
+
+..
+
+.. bpo: 22359
+.. date: 9478
+.. nonce: HDjM4s
+.. section: Build
+
+Disable the rules for running _freeze_importlib and pgen when
+cross-compiling. The output of these programs is normally saved with the
+source code anyway, and is still regenerated when doing a native build.
+Patch by Xavier de Gaye.
+
+..
+
+.. bpo: 27229
+.. date: 9477
+.. nonce: C2NDch
+.. section: Build
+
+Fix the cross-compiling pgen rule for in-tree builds. Patch by Xavier de
+Gaye.
+
+..
+
+.. bpo: 21668
+.. date: 9476
+.. nonce: 4sMAa1
+.. section: Build
+
+Link audioop, _datetime, _ctypes_test modules to libm, except on Mac OS X.
+Patch written by Xavier de Gaye.
+
+..
+
+.. bpo: 25702
+.. date: 9475
+.. nonce: ipxyJs
+.. section: Build
+
+A --with-lto configure option has been added that will enable link time
+optimizations at build time during a make profile-opt. Some compilers and
+toolchains are known to not produce stable code when using LTO, be sure to
+test things thoroughly before relying on it. It can provide a few % speed up
+over profile-opt alone.
+
+..
+
+.. bpo: 26624
+.. date: 9474
+.. nonce: 4fGrTl
+.. section: Build
+
+Adds validation of ucrtbase[d].dll version with warning for old versions.
+
+..
+
+.. bpo: 17603
+.. date: 9473
+.. nonce: 102DA-
+.. section: Build
+
+Avoid error about nonexistent fileblocks.o file by using a lower-level check
+for st_blocks in struct stat.
+
+..
+
+.. bpo: 26079
+.. date: 9472
+.. nonce: mEzW0O
+.. section: Build
+
+Fixing the build output folder for tix-8.4.3.6. Patch by Bjoern Thiel.
+
+..
+
+.. bpo: 26465
+.. date: 9471
+.. nonce: _YR608
+.. section: Build
+
+Update Windows builds to use OpenSSL 1.0.2g.
+
+..
+
+.. bpo: 24421
+.. date: 9470
+.. nonce: 2zY7vM
+.. section: Build
+
+Compile Modules/_math.c once, before building extensions. Previously it
+could fail to compile properly if the math and cmath builds were concurrent.
+
+..
+
+.. bpo: 25348
+.. date: 9469
+.. nonce: u6_BaQ
+.. section: Build
+
+Added ``--pgo`` and ``--pgo-job`` arguments to ``PCbuild\build.bat`` for
+building with Profile-Guided Optimization. The old
+``PCbuild\build_pgo.bat`` script is now deprecated, and simply calls
+``PCbuild\build.bat --pgo %*``.
+
+..
+
+.. bpo: 25827
+.. date: 9468
+.. nonce: yg3DMM
+.. section: Build
+
+Add support for building with ICC to ``configure``, including a new
+``--with-icc`` flag.
+
+..
+
+.. bpo: 25696
+.. date: 9467
+.. nonce: 2R_wIv
+.. section: Build
+
+Fix installation of Python on UNIX with make -j9.
+
+..
+
+.. bpo: 26930
+.. date: 9466
+.. nonce: Sqz2O3
+.. section: Build
+
+Update OS X 10.5+ 32-bit-only installer to build and link with OpenSSL
+1.0.2h.
+
+..
+
+.. bpo: 26268
+.. date: 9465
+.. nonce: I3-YLh
+.. section: Build
+
+Update Windows builds to use OpenSSL 1.0.2f.
+
+..
+
+.. bpo: 25136
+.. date: 9464
+.. nonce: Vi-fmO
+.. section: Build
+
+Support Apple Xcode 7's new textual SDK stub libraries.
+
+..
+
+.. bpo: 24324
+.. date: 9463
+.. nonce: m6DZMx
+.. section: Build
+
+Do not enable unreachable code warnings when using gcc as the option does
+not work correctly in older versions of gcc and has been silently removed as
+of gcc-4.5.
+
+..
+
+.. bpo: 27053
+.. date: 9462
+.. nonce: 1IRbae
+.. section: Windows
+
+Updates make_zip.py to correctly generate library ZIP file.
+
+..
+
+.. bpo: 26268
+.. date: 9461
+.. nonce: Z-lJEh
+.. section: Windows
+
+Update the prepare_ssl.py script to handle OpenSSL releases that don't
+include the contents of the include directory (that is, 1.0.2e and later).
+
+..
+
+.. bpo: 26071
+.. date: 9460
+.. nonce: wLxL2l
+.. section: Windows
+
+bdist_wininst created binaries fail to start and find 32bit Python
+
+..
+
+.. bpo: 26073
+.. date: 9459
+.. nonce: XwWgHp
+.. section: Windows
+
+Update the list of magic numbers in launcher
+
+..
+
+.. bpo: 26065
+.. date: 9458
+.. nonce: SkVLJp
+.. section: Windows
+
+Excludes venv from library when generating embeddable distro.
+
+..
+
+.. bpo: 17500
+.. date: 9453
+.. nonce: QTZbRV
+.. section: Windows
+
+Remove unused and outdated icons. (See also:
+https://github.com/python/pythondotorg/issues/945)
+
+..
+
+.. bpo: 26799
+.. date: 9457
+.. nonce: gK2VXX
+.. section: Tools/Demos
+
+Fix python-gdb.py: don't get C types once when the Python code is loaded,
+but get C types on demand. The C types can change if python-gdb.py is loaded
+before the Python executable. Patch written by Thomas Ilsche.
+
+..
+
+.. bpo: 26271
+.. date: 9456
+.. nonce: wg-rzr
+.. section: Tools/Demos
+
+Fix the Freeze tool to properly use flags passed through configure. Patch by
+Daniel Shaulov.
+
+..
+
+.. bpo: 26489
+.. date: 9455
+.. nonce: rJ_U5S
+.. section: Tools/Demos
+
+Add dictionary unpacking support to Tools/parser/unparse.py. Patch by Guo Ci
+Teo.
+
+..
+
+.. bpo: 26316
+.. date: 9454
+.. nonce: QJvVOi
+.. section: Tools/Demos
+
+Fix variable name typo in Argument Clinic.
--- /dev/null
+.. bpo: 0
+.. date: 9899
+.. no changes: True
+.. nonce: zYPqUK
+.. release date: 2017-01-17
+
+There were no code changes between 3.5.3rc1 and 3.5.3 final.
--- /dev/null
+.. release date: 2017-01-02
+.. bpo: 27278
+.. date: 9755
+.. nonce: y_HkGw
+.. original section: Library
+.. section: Security
+
+Fix os.urandom() implementation using getrandom() on Linux. Truncate size
+to INT_MAX and loop until we collected enough random bytes, instead of
+casting a directly Py_ssize_t to int.
+
+..
+
+.. bpo: 22636
+.. date: 9753
+.. nonce: 3fQW_g
+.. original section: Library
+.. section: Security
+
+Avoid shell injection problems with ctypes.util.find_library().
+
+..
+
+.. bpo: 29073
+.. date: 9898
+.. nonce: EFpHQ7
+.. section: Core and Builtins
+
+bytearray formatting no longer truncates on first null byte.
+
+..
+
+.. bpo: 28932
+.. date: 9897
+.. nonce: QnLx8A
+.. section: Core and Builtins
+
+Do not include <sys/random.h> if it does not exist.
+
+..
+
+.. bpo: 28147
+.. date: 9896
+.. nonce: EV4bm6
+.. section: Core and Builtins
+
+Fix a memory leak in split-table dictionaries: setattr() must not convert
+combined table into split table.
+
+..
+
+.. bpo: 25677
+.. date: 9895
+.. nonce: RWhZrb
+.. section: Core and Builtins
+
+Correct the positioning of the syntax error caret for indented blocks.
+Based on patch by Michael Layzell.
+
+..
+
+.. bpo: 29000
+.. date: 9894
+.. nonce: K6wQ-3
+.. section: Core and Builtins
+
+Fixed bytes formatting of octals with zero padding in alternate form.
+
+..
+
+.. bpo: 28512
+.. date: 9893
+.. nonce: i-pv6d
+.. section: Core and Builtins
+
+Fixed setting the offset attribute of SyntaxError by
+PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
+
+..
+
+.. bpo: 28991
+.. date: 9892
+.. nonce: -qOTxS
+.. section: Core and Builtins
+
+functools.lru_cache() was susceptible to an obscure reentrancy bug caused by
+a monkey-patched len() function.
+
+..
+
+.. bpo: 28648
+.. date: 9891
+.. nonce: z7B52W
+.. section: Core and Builtins
+
+Fixed crash in Py_DecodeLocale() in debug build on Mac OS X when decode
+astral characters. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 19398
+.. date: 9890
+.. nonce: RYbEGH
+.. section: Core and Builtins
+
+Extra slash no longer added to sys.path components in case of empty
+compile-time PYTHONPATH components.
+
+..
+
+.. bpo: 28426
+.. date: 9889
+.. nonce: E_quyK
+.. section: Core and Builtins
+
+Fixed potential crash in PyUnicode_AsDecodedObject() in debug build.
+
+..
+
+.. bpo: 23782
+.. date: 9888
+.. nonce: lonDzj
+.. section: Core and Builtins
+
+Fixed possible memory leak in _PyTraceback_Add() and exception loss in
+PyTraceBack_Here().
+
+..
+
+.. bpo: 28379
+.. date: 9887
+.. nonce: DuXlco
+.. section: Core and Builtins
+
+Added sanity checks and tests for PyUnicode_CopyCharacters(). Patch by Xiang
+Zhang.
+
+..
+
+.. bpo: 28376
+.. date: 9886
+.. nonce: oPD-5D
+.. section: Core and Builtins
+
+The type of long range iterator is now registered as Iterator. Patch by Oren
+Milman.
+
+..
+
+.. bpo: 28376
+.. date: 9885
+.. nonce: fLeHM2
+.. section: Core and Builtins
+
+The constructor of range_iterator now checks that step is not 0. Patch by
+Oren Milman.
+
+..
+
+.. bpo: 26906
+.. date: 9884
+.. nonce: YBjcwI
+.. section: Core and Builtins
+
+Resolving special methods of uninitialized type now causes implicit
+initialization of the type instead of a fail.
+
+..
+
+.. bpo: 18287
+.. date: 9883
+.. nonce: k6jffS
+.. section: Core and Builtins
+
+PyType_Ready() now checks that tp_name is not NULL. Original patch by Niklas
+Koep.
+
+..
+
+.. bpo: 24098
+.. date: 9882
+.. nonce: XqlP_1
+.. section: Core and Builtins
+
+Fixed possible crash when AST is changed in process of compiling it.
+
+..
+
+.. bpo: 28350
+.. date: 9881
+.. nonce: 8M5Eg9
+.. section: Core and Builtins
+
+String constants with null character no longer interned.
+
+..
+
+.. bpo: 26617
+.. date: 9880
+.. nonce: Gh5LvN
+.. section: Core and Builtins
+
+Fix crash when GC runs during weakref callbacks.
+
+..
+
+.. bpo: 27942
+.. date: 9879
+.. nonce: ZGuhns
+.. section: Core and Builtins
+
+String constants now interned recursively in tuples and frozensets.
+
+..
+
+.. bpo: 21578
+.. date: 9878
+.. nonce: GI1bhj
+.. section: Core and Builtins
+
+Fixed misleading error message when ImportError called with invalid keyword
+args.
+
+..
+
+.. bpo: 28203
+.. date: 9877
+.. nonce: kOgvtp
+.. section: Core and Builtins
+
+Fix incorrect type in error message from ``complex(1.0, {2:3})``. Patch by
+Soumya Sharma.
+
+..
+
+.. bpo: 27955
+.. date: 9876
+.. nonce: HC4pZ4
+.. section: Core and Builtins
+
+Fallback on reading /dev/urandom device when the getrandom() syscall fails
+with EPERM, for example when blocked by SECCOMP.
+
+..
+
+.. bpo: 28131
+.. date: 9875
+.. nonce: owq0wW
+.. section: Core and Builtins
+
+Fix a regression in zipimport's compile_source(). zipimport should use the
+same optimization level as the interpreter.
+
+..
+
+.. bpo: 25221
+.. date: 9874
+.. nonce: Zvkz9i
+.. section: Core and Builtins
+
+Fix corrupted result from PyLong_FromLong(0) when Python is compiled with
+NSMALLPOSINTS = 0.
+
+..
+
+.. bpo: 25758
+.. date: 9873
+.. nonce: yR-YTD
+.. section: Core and Builtins
+
+Prevents zipimport from unnecessarily encoding a filename (patch by Eryk
+Sun)
+
+..
+
+.. bpo: 28189
+.. date: 9872
+.. nonce: c_nbR_
+.. section: Core and Builtins
+
+dictitems_contains no longer swallows compare errors. (Patch by Xiang Zhang)
+
+..
+
+.. bpo: 27812
+.. date: 9871
+.. nonce: sidcs8
+.. section: Core and Builtins
+
+Properly clear out a generator's frame's backreference to the generator to
+prevent crashes in frame.clear().
+
+..
+
+.. bpo: 27811
+.. date: 9870
+.. nonce: T4AuBo
+.. section: Core and Builtins
+
+Fix a crash when a coroutine that has not been awaited is finalized with
+warnings-as-errors enabled.
+
+..
+
+.. bpo: 27587
+.. date: 9869
+.. nonce: mbavY2
+.. section: Core and Builtins
+
+Fix another issue found by PVS-Studio: Null pointer check after use of 'def'
+in _PyState_AddModule(). Initial patch by Christian Heimes.
+
+..
+
+.. bpo: 26020
+.. date: 9868
+.. nonce: niLbLa
+.. section: Core and Builtins
+
+set literal evaluation order did not match documented behaviour.
+
+..
+
+.. bpo: 27782
+.. date: 9867
+.. nonce: C8OBQD
+.. section: Core and Builtins
+
+Multi-phase extension module import now correctly allows the ``m_methods``
+field to be used to add module level functions to instances of non-module
+types returned from ``Py_create_mod``. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 27936
+.. date: 9866
+.. nonce: AdOann
+.. section: Core and Builtins
+
+The round() function accepted a second None argument for some types but not
+for others. Fixed the inconsistency by accepting None for all numeric
+types.
+
+..
+
+.. bpo: 27487
+.. date: 9865
+.. nonce: jeTQNr
+.. section: Core and Builtins
+
+Warn if a submodule argument to "python -m" or runpy.run_module() is found
+in sys.modules after parent packages are imported, but before the submodule
+is executed.
+
+..
+
+.. bpo: 27558
+.. date: 9864
+.. nonce: VmltMh
+.. section: Core and Builtins
+
+Fix a SystemError in the implementation of "raise" statement. In a brand new
+thread, raise a RuntimeError since there is no active exception to reraise.
+Patch written by Xiang Zhang.
+
+..
+
+.. bpo: 27419
+.. date: 9863
+.. nonce: JZ94ju
+.. section: Core and Builtins
+
+Standard __import__() no longer look up "__import__" in globals or builtins
+for importing submodules or "from import". Fixed handling an error of
+non-string package name.
+
+..
+
+.. bpo: 27083
+.. date: 9862
+.. nonce: F4ZT1C
+.. section: Core and Builtins
+
+Respect the PYTHONCASEOK environment variable under Windows.
+
+..
+
+.. bpo: 27514
+.. date: 9861
+.. nonce: NLbwPG
+.. section: Core and Builtins
+
+Make having too many statically nested blocks a SyntaxError instead of
+SystemError.
+
+..
+
+.. bpo: 27473
+.. date: 9860
+.. nonce: _nOtTA
+.. section: Core and Builtins
+
+Fixed possible integer overflow in bytes and bytearray concatenations.
+Patch by Xiang Zhang.
+
+..
+
+.. bpo: 27507
+.. date: 9859
+.. nonce: 3pX0Be
+.. section: Core and Builtins
+
+Add integer overflow check in bytearray.extend(). Patch by Xiang Zhang.
+
+..
+
+.. bpo: 27581
+.. date: 9858
+.. nonce: KezjNt
+.. section: Core and Builtins
+
+Don't rely on wrapping for overflow check in PySequence_Tuple(). Patch by
+Xiang Zhang.
+
+..
+
+.. bpo: 27443
+.. date: 9857
+.. nonce: 87ZwZ1
+.. section: Core and Builtins
+
+__length_hint__() of bytearray iterators no longer return a negative integer
+for a resized bytearray.
+
+..
+
+.. bpo: 27942
+.. date: 9856
+.. nonce: wCAkW5
+.. section: Core and Builtins
+
+Fix memory leak in codeobject.c
+
+..
+
+.. bpo: 15812
+.. date: 9855
+.. nonce: R1U-Ec
+.. section: Library
+
+inspect.getframeinfo() now correctly shows the first line of a context.
+Patch by Sam Breese.
+
+..
+
+.. bpo: 29094
+.. date: 9854
+.. nonce: 460ZQo
+.. section: Library
+
+Offsets in a ZIP file created with extern file object and modes "w" and "x"
+now are relative to the start of the file.
+
+..
+
+.. bpo: 13051
+.. date: 9853
+.. nonce: YzC1Te
+.. section: Library
+
+Fixed recursion errors in large or resized curses.textpad.Textbox. Based on
+patch by Tycho Andersen.
+
+..
+
+.. bpo: 29119
+.. date: 9852
+.. nonce: Ov69fr
+.. section: Library
+
+Fix weakrefs in the pure python version of collections.OrderedDict
+move_to_end() method. Contributed by Andra Bogildea.
+
+..
+
+.. bpo: 9770
+.. date: 9851
+.. nonce: WJJnwP
+.. section: Library
+
+curses.ascii predicates now work correctly with negative integers.
+
+..
+
+.. bpo: 28427
+.. date: 9850
+.. nonce: vUd-va
+.. section: Library
+
+old keys should not remove new values from WeakValueDictionary when
+collecting from another thread.
+
+..
+
+.. bpo: 28923
+.. date: 9849
+.. nonce: naVULD
+.. section: Library
+
+Remove editor artifacts from Tix.py.
+
+..
+
+.. bpo: 28871
+.. date: 9848
+.. nonce: cPMXCJ
+.. section: Library
+
+Fixed a crash when deallocate deep ElementTree.
+
+..
+
+.. bpo: 19542
+.. date: 9847
+.. nonce: 5tCkaK
+.. section: Library
+
+Fix bugs in WeakValueDictionary.setdefault() and WeakValueDictionary.pop()
+when a GC collection happens in another thread.
+
+..
+
+.. bpo: 20191
+.. date: 9846
+.. nonce: P_EZ7c
+.. section: Library
+
+Fixed a crash in resource.prlimit() when pass a sequence that doesn't own
+its elements as limits.
+
+..
+
+.. bpo: 28779
+.. date: 9845
+.. nonce: t-mjED
+.. section: Library
+
+multiprocessing.set_forkserver_preload() would crash the forkserver process
+if a preloaded module instantiated some multiprocessing objects such as
+locks.
+
+..
+
+.. bpo: 28847
+.. date: 9844
+.. nonce: J7d3nG
+.. section: Library
+
+dbm.dumb now supports reading read-only files and no longer writes the index
+file when it is not changed.
+
+..
+
+.. bpo: 25659
+.. date: 9843
+.. nonce: lE2IlT
+.. section: Library
+
+In ctypes, prevent a crash calling the from_buffer() and from_buffer_copy()
+methods on abstract classes like Array.
+
+..
+
+.. bpo: 28732
+.. date: 9842
+.. nonce: xkG8k7
+.. section: Library
+
+Fix crash in os.spawnv() with no elements in args
+
+..
+
+.. bpo: 28485
+.. date: 9841
+.. nonce: WuKqKh
+.. section: Library
+
+Always raise ValueError for negative compileall.compile_dir(workers=...)
+parameter, even when multithreading is unavailable.
+
+..
+
+.. bpo: 28387
+.. date: 9840
+.. nonce: 1clJu7
+.. section: Library
+
+Fixed possible crash in _io.TextIOWrapper deallocator when the garbage
+collector is invoked in other thread. Based on patch by Sebastian Cufre.
+
+..
+
+.. bpo: 27517
+.. date: 9839
+.. nonce: 1CYM8A
+.. section: Library
+
+LZMA compressor and decompressor no longer raise exceptions if given empty
+data twice. Patch by Benjamin Fogle.
+
+..
+
+.. bpo: 28549
+.. date: 9838
+.. nonce: ShnM2y
+.. section: Library
+
+Fixed segfault in curses's addch() with ncurses6.
+
+..
+
+.. bpo: 28449
+.. date: 9837
+.. nonce: 5JK6ES
+.. section: Library
+
+tarfile.open() with mode "r" or "r:" now tries to open a tar file with
+compression before trying to open it without compression. Otherwise it had
+50% chance failed with ignore_zeros=True.
+
+..
+
+.. bpo: 23262
+.. date: 9836
+.. nonce: 6EVB7N
+.. section: Library
+
+The webbrowser module now supports Firefox 36+ and derived browsers. Based
+on patch by Oleg Broytman.
+
+..
+
+.. bpo: 27939
+.. date: 9835
+.. nonce: mTfADV
+.. section: Library
+
+Fixed bugs in tkinter.ttk.LabeledScale and tkinter.Scale caused by
+representing the scale as float value internally in Tk. tkinter.IntVar now
+works if float value is set to underlying Tk variable.
+
+..
+
+.. bpo: 28255
+.. date: 9834
+.. nonce: _ZH4wm
+.. section: Library
+
+calendar.TextCalendar().prmonth() no longer prints a space at the start of
+new line after printing a month's calendar. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 20491
+.. date: 9833
+.. nonce: ObgnQ2
+.. section: Library
+
+The textwrap.TextWrapper class now honors non-breaking spaces. Based on
+patch by Kaarle Ritvanen.
+
+..
+
+.. bpo: 28353
+.. date: 9832
+.. nonce: sKGbLL
+.. section: Library
+
+os.fwalk() no longer fails on broken links.
+
+..
+
+.. bpo: 25464
+.. date: 9831
+.. nonce: HDUTCu
+.. section: Library
+
+Fixed HList.header_exists() in tkinter.tix module by addin a workaround to
+Tix library bug.
+
+..
+
+.. bpo: 28488
+.. date: 9830
+.. nonce: NlkjBM
+.. section: Library
+
+shutil.make_archive() no longer add entry "./" to ZIP archive.
+
+..
+
+.. bpo: 24452
+.. date: 9829
+.. nonce: m9Kyg3
+.. section: Library
+
+Make webbrowser support Chrome on Mac OS X.
+
+..
+
+.. bpo: 20766
+.. date: 9828
+.. nonce: 4kvCzx
+.. section: Library
+
+Fix references leaked by pdb in the handling of SIGINT handlers.
+
+..
+
+.. bpo: 26293
+.. date: 9827
+.. nonce: 2mjvwX
+.. section: Library
+
+Fixed writing ZIP files that starts not from the start of the file. Offsets
+in ZIP file now are relative to the start of the archive in conforming to
+the specification.
+
+..
+
+.. bpo: 28321
+.. date: 9826
+.. nonce: bQ-IIX
+.. section: Library
+
+Fixed writing non-BMP characters with binary format in plistlib.
+
+..
+
+.. bpo: 28322
+.. date: 9825
+.. nonce: l9hzap
+.. section: Library
+
+Fixed possible crashes when unpickle itertools objects from incorrect pickle
+data. Based on patch by John Leitch.
+
+..
+
+.. bpo: 0
+.. date: 9824
+.. nonce: 81jNns
+.. section: Library
+
+Fix possible integer overflows and crashes in the mmap module with unusual
+usage patterns.
+
+..
+
+.. bpo: 1703178
+.. date: 9823
+.. nonce: meb49K
+.. section: Library
+
+Fix the ability to pass the --link-objects option to the distutils build_ext
+command.
+
+..
+
+.. bpo: 28253
+.. date: 9822
+.. nonce: aLfmhe
+.. section: Library
+
+Fixed calendar functions for extreme months: 0001-01 and 9999-12.
+Methods itermonthdays() and itermonthdays2() are reimplemented so that they
+don't call itermonthdates() which can cause datetime.date under/overflow.
+
+..
+
+.. bpo: 28275
+.. date: 9821
+.. nonce: EhWIsz
+.. section: Library
+
+Fixed possible use after free in the decompress() methods of the
+LZMADecompressor and BZ2Decompressor classes. Original patch by John Leitch.
+
+..
+
+.. bpo: 27897
+.. date: 9820
+.. nonce: I0Ppmx
+.. section: Library
+
+Fixed possible crash in sqlite3.Connection.create_collation() if pass
+invalid string-like object as a name. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 18893
+.. date: 9819
+.. nonce: osiX5c
+.. section: Library
+
+Fix invalid exception handling in Lib/ctypes/macholib/dyld.py. Patch by
+Madison May.
+
+..
+
+.. bpo: 27611
+.. date: 9818
+.. nonce: qL-UVQ
+.. section: Library
+
+Fixed support of default root window in the tkinter.tix module.
+
+..
+
+.. bpo: 27348
+.. date: 9817
+.. nonce: tDx7Vw
+.. section: Library
+
+In the traceback module, restore the formatting of exception messages like
+"Exception: None". This fixes a regression introduced in 3.5a2.
+
+..
+
+.. bpo: 25651
+.. date: 9816
+.. nonce: 3UhyPo
+.. section: Library
+
+Allow falsy values to be used for msg parameter of subTest().
+
+..
+
+.. bpo: 27932
+.. date: 9815
+.. nonce: mtgl-6
+.. section: Library
+
+Prevent memory leak in win32_ver().
+
+..
+
+.. bpo: 0
+.. date: 9814
+.. nonce: iPpjqX
+.. section: Library
+
+Fix UnboundLocalError in socket._sendfile_use_sendfile.
+
+..
+
+.. bpo: 28075
+.. date: 9813
+.. nonce: aLiUs9
+.. section: Library
+
+Check for ERROR_ACCESS_DENIED in Windows implementation of os.stat(). Patch
+by Eryk Sun.
+
+..
+
+.. bpo: 25270
+.. date: 9812
+.. nonce: jrZruM
+.. section: Library
+
+Prevent codecs.escape_encode() from raising SystemError when an empty
+bytestring is passed.
+
+..
+
+.. bpo: 28181
+.. date: 9811
+.. nonce: NGc4Yv
+.. section: Library
+
+Get antigravity over HTTPS. Patch by Kaartic Sivaraam.
+
+..
+
+.. bpo: 25895
+.. date: 9810
+.. nonce: j92qoQ
+.. section: Library
+
+Enable WebSocket URL schemes in urllib.parse.urljoin. Patch by Gergely Imreh
+and Markus Holtermann.
+
+..
+
+.. bpo: 27599
+.. date: 9809
+.. nonce: itvm8T
+.. section: Library
+
+Fixed buffer overrun in binascii.b2a_qp() and binascii.a2b_qp().
+
+..
+
+.. bpo: 19003
+.. date: 9808
+.. nonce: UUcK_F
+.. section: Library
+
+m email.generator now replaces only ``\r`` and/or ``\n`` line endings, per
+the RFC, instead of all unicode line endings.
+
+..
+
+.. bpo: 28019
+.. date: 9807
+.. nonce: KUhBaS
+.. section: Library
+
+itertools.count() no longer rounds non-integer step in range between 1.0 and
+2.0 to 1.
+
+..
+
+.. bpo: 25969
+.. date: 9806
+.. nonce: qSPkl-
+.. section: Library
+
+Update the lib2to3 grammar to handle the unpacking generalizations added in
+3.5.
+
+..
+
+.. bpo: 14977
+.. date: 9805
+.. nonce: 4MvALg
+.. section: Library
+
+mailcap now respects the order of the lines in the mailcap files ("first
+match"), as required by RFC 1542. Patch by Michael Lazar.
+
+..
+
+.. bpo: 24594
+.. date: 9804
+.. nonce: 9CnFVS
+.. section: Library
+
+Validates persist parameter when opening MSI database
+
+..
+
+.. bpo: 17582
+.. date: 9803
+.. nonce: MXEHxQ
+.. section: Library
+
+xml.etree.ElementTree nows preserves whitespaces in attributes (Patch by
+Duane Griffin. Reviewed and approved by Stefan Behnel.)
+
+..
+
+.. bpo: 28047
+.. date: 9802
+.. nonce: pDu3Fm
+.. section: Library
+
+Fixed calculation of line length used for the base64 CTE in the new email
+policies.
+
+..
+
+.. bpo: 27445
+.. date: 9801
+.. nonce: wOG0C0
+.. section: Library
+
+Don't pass str(_charset) to MIMEText.set_payload(). Patch by Claude Paroz.
+
+..
+
+.. bpo: 22450
+.. date: 9800
+.. nonce: T3Sn_J
+.. section: Library
+
+urllib now includes an ``Accept: */*`` header among the default headers.
+This makes the results of REST API requests more consistent and predictable
+especially when proxy servers are involved.
+
+..
+
+.. bpo: 0
+.. date: 9799
+.. nonce: PVZStR
+.. section: Library
+
+lib2to3.pgen3.driver.load_grammar() now creates a stable cache file between
+runs given the same Grammar.txt input regardless of the hash randomization
+setting.
+
+..
+
+.. bpo: 27570
+.. date: 9798
+.. nonce: pU0Zie
+.. section: Library
+
+Avoid zero-length memcpy() etc calls with null source pointers in the
+"ctypes" and "array" modules.
+
+..
+
+.. bpo: 22233
+.. date: 9797
+.. nonce: uXSN0R
+.. section: Library
+
+Break email header lines *only* on the RFC specified CR and LF characters,
+not on arbitrary unicode line breaks. This also fixes a bug in HTTP header
+parsing.
+
+..
+
+.. bpo: 27988
+.. date: 9796
+.. nonce: VfMzZH
+.. section: Library
+
+Fix email iter_attachments incorrect mutation of payload list.
+
+..
+
+.. bpo: 27691
+.. date: 9795
+.. nonce: TMYF5_
+.. section: Library
+
+Fix ssl module's parsing of GEN_RID subject alternative name fields in X.509
+certs.
+
+..
+
+.. bpo: 27850
+.. date: 9794
+.. nonce: kIVQ0m
+.. section: Library
+
+Remove 3DES from ssl module's default cipher list to counter measure sweet32
+attack (CVE-2016-2183).
+
+..
+
+.. bpo: 27766
+.. date: 9793
+.. nonce: WI70Tc
+.. section: Library
+
+Add ChaCha20 Poly1305 to ssl module's default cipher list. (Required OpenSSL
+1.1.0 or LibreSSL).
+
+..
+
+.. bpo: 26470
+.. date: 9792
+.. nonce: QGu_wo
+.. section: Library
+
+Port ssl and hashlib module to OpenSSL 1.1.0.
+
+..
+
+.. bpo: 0
+.. date: 9791
+.. nonce: 6TjEgz
+.. section: Library
+
+Remove support for passing a file descriptor to os.access. It never worked
+but previously didn't raise.
+
+..
+
+.. bpo: 12885
+.. date: 9790
+.. nonce: r-IV1g
+.. section: Library
+
+Fix error when distutils encounters symlink.
+
+..
+
+.. bpo: 27881
+.. date: 9789
+.. nonce: fkETd9
+.. section: Library
+
+Fixed possible bugs when setting sqlite3.Connection.isolation_level. Based
+on patch by Xiang Zhang.
+
+..
+
+.. bpo: 27861
+.. date: 9788
+.. nonce: DBYuo9
+.. section: Library
+
+Fixed a crash in sqlite3.Connection.cursor() when a factory creates not a
+cursor. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 19884
+.. date: 9787
+.. nonce: MO8AWH
+.. section: Library
+
+Avoid spurious output on OS X with Gnu Readline.
+
+..
+
+.. bpo: 27706
+.. date: 9786
+.. nonce: ZY67yu
+.. section: Library
+
+Restore deterministic behavior of random.Random().seed() for string seeds
+using seeding version 1. Allows sequences of calls to random() to exactly
+match those obtained in Python 2. Patch by Nofar Schnider.
+
+..
+
+.. bpo: 10513
+.. date: 9785
+.. nonce: tQIQD_
+.. section: Library
+
+Fix a regression in Connection.commit(). Statements should not be reset
+after a commit.
+
+..
+
+.. bpo: 0
+.. date: 9784
+.. nonce: cYraeH
+.. section: Library
+
+A new version of typing.py from https://github.com/python/typing:
+Collection (only for 3.6) (Issue #27598). Add FrozenSet to __all__
+(upstream #261). Fix crash in _get_type_vars() (upstream #259). Remove the
+dict constraint in ForwardRef._eval_type (upstream #252).
+
+..
+
+.. bpo: 27539
+.. date: 9783
+.. nonce: S4L1cq
+.. section: Library
+
+Fix unnormalised ``Fraction.__pow__`` result in the case of negative
+exponent and negative base.
+
+..
+
+.. bpo: 21718
+.. date: 9782
+.. nonce: FUJd-7
+.. section: Library
+
+cursor.description is now available for queries using CTEs.
+
+..
+
+.. bpo: 2466
+.. date: 9781
+.. nonce: VRNlkg
+.. section: Library
+
+posixpath.ismount now correctly recognizes mount points which the user does
+not have permission to access.
+
+..
+
+.. bpo: 27773
+.. date: 9780
+.. nonce: hMSSeX
+.. section: Library
+
+Correct some memory management errors server_hostname in _ssl.wrap_socket().
+
+..
+
+.. bpo: 26750
+.. date: 9779
+.. nonce: rv76vt
+.. section: Library
+
+unittest.mock.create_autospec() now works properly for subclasses of
+property() and other data descriptors.
+
+..
+
+.. bpo: 0
+.. date: 9778
+.. nonce: Ny9oPv
+.. section: Library
+
+In the curses module, raise an error if window.getstr() or window.instr() is
+passed a negative value.
+
+..
+
+.. bpo: 27783
+.. date: 9777
+.. nonce: cR1jXH
+.. section: Library
+
+Fix possible usage of uninitialized memory in operator.methodcaller.
+
+..
+
+.. bpo: 27774
+.. date: 9776
+.. nonce: FDcik1
+.. section: Library
+
+Fix possible Py_DECREF on unowned object in _sre.
+
+..
+
+.. bpo: 27760
+.. date: 9775
+.. nonce: gxMjp4
+.. section: Library
+
+Fix possible integer overflow in binascii.b2a_qp.
+
+..
+
+.. bpo: 27758
+.. date: 9774
+.. nonce: 0NRV03
+.. section: Library
+
+Fix possible integer overflow in the _csv module for large record lengths.
+
+..
+
+.. bpo: 27568
+.. date: 9773
+.. nonce: OnuO9s
+.. section: Library
+
+Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the HTTP_PROXY variable
+when REQUEST_METHOD environment is set, which indicates that the script is
+in CGI mode.
+
+..
+
+.. bpo: 27656
+.. date: 9772
+.. nonce: joTscM
+.. section: Library
+
+Do not assume sched.h defines any SCHED_* constants.
+
+..
+
+.. bpo: 27130
+.. date: 9771
+.. nonce: SUxwXZ
+.. section: Library
+
+In the "zlib" module, fix handling of large buffers (typically 4 GiB) when
+compressing and decompressing. Previously, inputs were limited to 4 GiB,
+and compression and decompression operations did not properly handle results
+of 4 GiB.
+
+..
+
+.. bpo: 27533
+.. date: 9770
+.. nonce: iDmKzV
+.. section: Library
+
+Release GIL in nt._isdir
+
+..
+
+.. bpo: 17711
+.. date: 9769
+.. nonce: 47AILJ
+.. section: Library
+
+Fixed unpickling by the persistent ID with protocol 0. Original patch by
+Alexandre Vassalotti.
+
+..
+
+.. bpo: 27522
+.. date: 9768
+.. nonce: 8vVz_t
+.. section: Library
+
+Avoid an unintentional reference cycle in email.feedparser.
+
+..
+
+.. bpo: 26844
+.. date: 9767
+.. nonce: I0wdnY
+.. section: Library
+
+Fix error message for imp.find_module() to refer to 'path' instead of
+'name'. Patch by Lev Maximov.
+
+..
+
+.. bpo: 23804
+.. date: 9766
+.. nonce: ipFvxc
+.. section: Library
+
+Fix SSL zero-length recv() calls to not block and not raise an error about
+unclean EOF.
+
+..
+
+.. bpo: 27466
+.. date: 9765
+.. nonce: C_3a8E
+.. section: Library
+
+Change time format returned by http.cookie.time2netscape, confirming the
+netscape cookie format and making it consistent with documentation.
+
+..
+
+.. bpo: 26664
+.. date: 9764
+.. nonce: OzsSzf
+.. section: Library
+
+Fix activate.fish by removing mis-use of ``$``.
+
+..
+
+.. bpo: 22115
+.. date: 9763
+.. nonce: apoFQ9
+.. section: Library
+
+Fixed tracing Tkinter variables: trace_vdelete() with wrong mode no longer
+break tracing, trace_vinfo() now always returns a list of pairs of strings,
+tracing in the "u" mode now works.
+
+..
+
+.. bpo: 0
+.. date: 9762
+.. nonce: oZOeFE
+.. section: Library
+
+Fix a scoping issue in importlib.util.LazyLoader which triggered an
+UnboundLocalError when lazy-loading a module that was already put into
+sys.modules.
+
+..
+
+.. bpo: 27079
+.. date: 9761
+.. nonce: c7d0Ym
+.. section: Library
+
+Fixed curses.ascii functions isblank(), iscntrl() and ispunct().
+
+..
+
+.. bpo: 26754
+.. date: 9760
+.. nonce: J3n0QW
+.. section: Library
+
+Some functions (compile() etc) accepted a filename argument encoded as an
+iterable of integers. Now only strings and byte-like objects are accepted.
+
+..
+
+.. bpo: 27048
+.. date: 9759
+.. nonce: EVe-Bk
+.. section: Library
+
+Prevents distutils failing on Windows when environment variables contain
+non-ASCII characters
+
+..
+
+.. bpo: 27330
+.. date: 9758
+.. nonce: GJaFCV
+.. section: Library
+
+Fixed possible leaks in the ctypes module.
+
+..
+
+.. bpo: 27238
+.. date: 9757
+.. nonce: Q6v6Qv
+.. section: Library
+
+Got rid of bare excepts in the turtle module. Original patch by Jelle
+Zijlstra.
+
+..
+
+.. bpo: 27122
+.. date: 9756
+.. nonce: 06t7zN
+.. section: Library
+
+When an exception is raised within the context being managed by a
+contextlib.ExitStack() and one of the exit stack generators catches and
+raises it in a chain, do not re-raise the original exception when exiting,
+let the new chained one through. This avoids the :pep:`479` bug described in
+issue25782.
+
+..
+
+.. bpo: 26386
+.. date: 9754
+.. nonce: 9L3Ut4
+.. section: Library
+
+Fixed ttk.TreeView selection operations with item id's containing spaces.
+
+..
+
+.. bpo: 16182
+.. date: 9752
+.. nonce: RgFXyr
+.. section: Library
+
+Fix various functions in the "readline" module to use the locale encoding,
+and fix get_begidx() and get_endidx() to return code point indexes.
+
+..
+
+.. bpo: 27392
+.. date: 9751
+.. nonce: obfni7
+.. section: Library
+
+Add loop.connect_accepted_socket(). Patch by Jim Fulton.
+
+..
+
+.. bpo: 27930
+.. date: 9750
+.. nonce: BkOfSi
+.. section: Library
+
+Improved behaviour of logging.handlers.QueueListener. Thanks to Paulo
+Andrade and Petr Viktorin for the analysis and patch.
+
+..
+
+.. bpo: 21201
+.. date: 9749
+.. nonce: wLCKiA
+.. section: Library
+
+Improves readability of multiprocessing error message. Thanks to Wojciech
+Walczak for patch.
+
+..
+
+.. bpo: 27456
+.. date: 9748
+.. nonce: lI_IE7
+.. section: Library
+
+asyncio: Set TCP_NODELAY by default.
+
+..
+
+.. bpo: 27906
+.. date: 9747
+.. nonce: TBBXrv
+.. section: Library
+
+Fix socket accept exhaustion during high TCP traffic. Patch by Kevin Conway.
+
+..
+
+.. bpo: 28174
+.. date: 9746
+.. nonce: CV1UdI
+.. section: Library
+
+Handle when SO_REUSEPORT isn't properly supported. Patch by Seth Michael
+Larson.
+
+..
+
+.. bpo: 26654
+.. date: 9745
+.. nonce: XtzTE9
+.. section: Library
+
+Inspect functools.partial in asyncio.Handle.__repr__. Patch by iceboy.
+
+..
+
+.. bpo: 26909
+.. date: 9744
+.. nonce: ASiakT
+.. section: Library
+
+Fix slow pipes IO in asyncio. Patch by INADA Naoki.
+
+..
+
+.. bpo: 28176
+.. date: 9743
+.. nonce: sU8R6L
+.. section: Library
+
+Fix callbacks race in asyncio.SelectorLoop.sock_connect.
+
+..
+
+.. bpo: 27759
+.. date: 9742
+.. nonce: qpMDGq
+.. section: Library
+
+Fix selectors incorrectly retain invalid file descriptors. Patch by Mark
+Williams.
+
+..
+
+.. bpo: 28368
+.. date: 9741
+.. nonce: n594X4
+.. section: Library
+
+Refuse monitoring processes if the child watcher has no loop attached. Patch
+by Vincent Michel.
+
+..
+
+.. bpo: 28369
+.. date: 9740
+.. nonce: 8DTANe
+.. section: Library
+
+Raise RuntimeError when transport's FD is used with add_reader, add_writer,
+etc.
+
+..
+
+.. bpo: 28370
+.. date: 9739
+.. nonce: 18jBuZ
+.. section: Library
+
+Speedup asyncio.StreamReader.readexactly. Patch by Коренберг Марк.
+
+..
+
+.. bpo: 28371
+.. date: 9738
+.. nonce: U9Zqdk
+.. section: Library
+
+Deprecate passing asyncio.Handles to run_in_executor.
+
+..
+
+.. bpo: 28372
+.. date: 9737
+.. nonce: njcIPk
+.. section: Library
+
+Fix asyncio to support formatting of non-python coroutines.
+
+..
+
+.. bpo: 28399
+.. date: 9736
+.. nonce: QKIqRX
+.. section: Library
+
+Remove UNIX socket from FS before binding. Patch by Коренберг Марк.
+
+..
+
+.. bpo: 27972
+.. date: 9735
+.. nonce: ZK-GFm
+.. section: Library
+
+Prohibit Tasks to await on themselves.
+
+..
+
+.. bpo: 26923
+.. date: 9734
+.. nonce: 8dh3AV
+.. section: Library
+
+Fix asyncio.Gather to refuse being cancelled once all children are done.
+Patch by Johannes Ebke.
+
+..
+
+.. bpo: 26796
+.. date: 9733
+.. nonce: TZyAfJ
+.. section: Library
+
+Don't configure the number of workers for default threadpool executor.
+Initial patch by Hans Lawrenz.
+
+..
+
+.. bpo: 28600
+.. date: 9732
+.. nonce: 2ThUQV
+.. section: Library
+
+Optimize loop.call_soon().
+
+..
+
+.. bpo: 28613
+.. date: 9731
+.. nonce: sqUPrv
+.. section: Library
+
+Fix get_event_loop() return the current loop if called from
+coroutines/callbacks.
+
+..
+
+.. bpo: 28639
+.. date: 9730
+.. nonce: WUPo1o
+.. section: Library
+
+Fix inspect.isawaitable to always return bool Patch by Justin Mayfield.
+
+..
+
+.. bpo: 28652
+.. date: 9729
+.. nonce: f5M8FG
+.. section: Library
+
+Make loop methods reject socket kinds they do not support.
+
+..
+
+.. bpo: 28653
+.. date: 9728
+.. nonce: S5bA9i
+.. section: Library
+
+Fix a refleak in functools.lru_cache.
+
+..
+
+.. bpo: 28703
+.. date: 9727
+.. nonce: CRLTJc
+.. section: Library
+
+Fix asyncio.iscoroutinefunction to handle Mock objects.
+
+..
+
+.. bpo: 24142
+.. date: 9726
+.. nonce: _BgogI
+.. section: Library
+
+Reading a corrupt config file left the parser in an invalid state. Original
+patch by Florian Höch.
+
+..
+
+.. bpo: 28990
+.. date: 9725
+.. nonce: W8tuYZ
+.. section: Library
+
+Fix SSL hanging if connection is closed before handshake completed. (Patch
+by HoHo-Ho)
+
+..
+
+.. bpo: 15308
+.. date: 9724
+.. nonce: zZxn8m
+.. section: IDLE
+
+Add 'interrupt execution' (^C) to Shell menu. Patch by Roger Serwy, updated
+by Bayard Randel.
+
+..
+
+.. bpo: 27922
+.. date: 9723
+.. nonce: UEtEv9
+.. section: IDLE
+
+Stop IDLE tests from 'flashing' gui widgets on the screen.
+
+..
+
+.. bpo: 0
+.. date: 9722
+.. nonce: zWZs6o
+.. section: IDLE
+
+Add version to title of IDLE help window.
+
+..
+
+.. bpo: 25564
+.. date: 9721
+.. nonce: GN0p14
+.. section: IDLE
+
+In section on IDLE -- console differences, mention that using exec means
+that __builtins__ is defined for each statement.
+
+..
+
+.. bpo: 27714
+.. date: 9720
+.. nonce: bUEDsI
+.. section: IDLE
+
+text_textview and test_autocomplete now pass when re-run in the same
+process. This occurs when test_idle fails when run with the -w option but
+without -jn. Fix warning from test_config.
+
+..
+
+.. bpo: 25507
+.. date: 9719
+.. nonce: lxf68d
+.. section: IDLE
+
+IDLE no longer runs buggy code because of its tkinter imports. Users must
+include the same imports required to run directly in Python.
+
+..
+
+.. bpo: 27452
+.. date: 9718
+.. nonce: RtWnyR
+.. section: IDLE
+
+add line counter and crc to IDLE configHandler test dump.
+
+..
+
+.. bpo: 27365
+.. date: 9717
+.. nonce: y7ys_A
+.. section: IDLE
+
+Allow non-ascii chars in IDLE NEWS.txt, for contributor names.
+
+..
+
+.. bpo: 27245
+.. date: 9716
+.. nonce: u9aKO1
+.. section: IDLE
+
+IDLE: Cleanly delete custom themes and key bindings. Previously, when IDLE
+was started from a console or by import, a cascade of warnings was emitted.
+Patch by Serhiy Storchaka.
+
+..
+
+.. bpo: 28808
+.. date: 9715
+.. nonce: A03X6r
+.. section: C API
+
+PyUnicode_CompareWithASCIIString() now never raises exceptions.
+
+..
+
+.. bpo: 26754
+.. date: 9714
+.. nonce: j2czHF
+.. section: C API
+
+PyUnicode_FSDecoder() accepted a filename argument encoded as an iterable of
+integers. Now only strings and bytes-like objects are accepted.
+
+..
+
+.. bpo: 28513
+.. date: 9713
+.. nonce: L3joAz
+.. section: Documentation
+
+Documented command-line interface of zipfile.
+
+..
+
+.. bpo: 28950
+.. date: 9712
+.. nonce: 9_vY6R
+.. section: Tests
+
+Disallow -j0 to be combined with -T/-l/-M in regrtest command line
+arguments.
+
+..
+
+.. bpo: 28666
+.. date: 9711
+.. nonce: RtTk-4
+.. section: Tests
+
+Now test.support.rmtree is able to remove unwritable or unreadable
+directories.
+
+..
+
+.. bpo: 23839
+.. date: 9710
+.. nonce: zsT_L9
+.. section: Tests
+
+Various caches now are cleared before running every test file.
+
+..
+
+.. bpo: 28409
+.. date: 9709
+.. nonce: Q2IlxJ
+.. section: Tests
+
+regrtest: fix the parser of command line arguments.
+
+..
+
+.. bpo: 27787
+.. date: 9708
+.. nonce: kf0YAt
+.. section: Tests
+
+Call gc.collect() before checking each test for "dangling threads", since
+the dangling threads are weak references.
+
+..
+
+.. bpo: 27369
+.. date: 9707
+.. nonce: LG7U2D
+.. section: Tests
+
+In test_pyexpat, avoid testing an error message detail that changed in Expat
+2.2.0.
+
+..
+
+.. bpo: 27952
+.. date: 9706
+.. nonce: WX9Ufc
+.. section: Tools/Demos
+
+Get Tools/scripts/fixcid.py working with Python 3 and the current "re"
+module, avoid invalid Python backslash escapes, and fix a bug parsing
+escaped C quote signs.
+
+..
+
+.. bpo: 27332
+.. date: 9705
+.. nonce: OuRZp9
+.. section: Tools/Demos
+
+Fixed the type of the first argument of module-level functions generated by
+Argument Clinic. Patch by Petr Viktorin.
+
+..
+
+.. bpo: 27418
+.. date: 9704
+.. nonce: W2m_8I
+.. section: Tools/Demos
+
+Fixed Tools/importbench/importbench.py.
+
+..
+
+.. bpo: 28251
+.. date: 9703
+.. nonce: tR_AFs
+.. section: Windows
+
+Improvements to help manuals on Windows.
+
+..
+
+.. bpo: 28110
+.. date: 9702
+.. nonce: cnkP5F
+.. section: Windows
+
+launcher.msi has different product codes between 32-bit and 64-bit
+
+..
+
+.. bpo: 25144
+.. date: 9701
+.. nonce: iUha52
+.. section: Windows
+
+Ensures TargetDir is set before continuing with custom install.
+
+..
+
+.. bpo: 27469
+.. date: 9700
+.. nonce: 0GwDkX
+.. section: Windows
+
+Adds a shell extension to the launcher so that drag and drop works
+correctly.
+
+..
+
+.. bpo: 27309
+.. date: 9699
+.. nonce: 4DPjhF
+.. section: Windows
+
+Enabled proper Windows styles in python[w].exe manifest.
+
+..
+
+.. bpo: 29080
+.. date: 9698
+.. nonce: b3qLQT
+.. section: Build
+
+Removes hard dependency on hg.exe from PCBuild/build.bat
+
+..
+
+.. bpo: 23903
+.. date: 9697
+.. nonce: JXJ889
+.. section: Build
+
+Added missed names to PC/python3.def.
+
+..
+
+.. bpo: 10656
+.. date: 9696
+.. nonce: pR8FFU
+.. section: Build
+
+Fix out-of-tree building on AIX. Patch by Tristan Carel and Michael
+Haubenwallner.
+
+..
+
+.. bpo: 26359
+.. date: 9695
+.. nonce: CLz6qy
+.. section: Build
+
+Rename --with-optimiations to --enable-optimizations.
+
+..
+
+.. bpo: 28444
+.. date: 9694
+.. nonce: zkc9nT
+.. section: Build
+
+Fix missing extensions modules when cross compiling.
+
+..
+
+.. bpo: 28248
+.. date: 9693
+.. nonce: KY_-en
+.. section: Build
+
+Update Windows build and OS X installers to use OpenSSL 1.0.2j.
+
+..
+
+.. bpo: 28258
+.. date: 9692
+.. nonce: iKtAHd
+.. section: Build
+
+Fixed build with Estonian locale (python-config and distclean targets in
+Makefile). Patch by Arfrever Frehtes Taifersar Arahesis.
+
+..
+
+.. bpo: 26661
+.. date: 9691
+.. nonce: Z_HNbs
+.. section: Build
+
+setup.py now detects system libffi with multiarch wrapper.
+
+..
+
+.. bpo: 28066
+.. date: 9690
+.. nonce: _3xImV
+.. section: Build
+
+Fix the logic that searches build directories for generated include files
+when building outside the source tree.
+
+..
+
+.. bpo: 15819
+.. date: 9689
+.. nonce: QVDr3E
+.. section: Build
+
+Remove redundant include search directory option for building outside the
+source tree.
+
+..
+
+.. bpo: 27566
+.. date: 9688
+.. nonce: xDWjEb
+.. section: Build
+
+Fix clean target in freeze makefile (patch by Lisa Roach)
+
+..
+
+.. bpo: 27705
+.. date: 9687
+.. nonce: 8C2Ms3
+.. section: Build
+
+Update message in validate_ucrtbase.py
+
+..
+
+.. bpo: 27983
+.. date: 9686
+.. nonce: jL_1n8
+.. section: Build
+
+Cause lack of llvm-profdata tool when using clang as required for PGO
+linking to be a configure time error rather than make time when
+--with-optimizations is enabled. Also improve our ability to find the
+llvm-profdata tool on MacOS and some Linuxes.
+
+..
+
+.. bpo: 26307
+.. date: 9685
+.. nonce: Puk2rd
+.. section: Build
+
+The profile-opt build now applies PGO to the built-in modules.
+
+..
+
+.. bpo: 26359
+.. date: 9684
+.. nonce: WXBL-Y
+.. section: Build
+
+Add the --with-optimizations configure flag.
+
+..
+
+.. bpo: 27713
+.. date: 9683
+.. nonce: _3DgXG
+.. section: Build
+
+Suppress spurious build warnings when updating importlib's bootstrap files.
+Patch by Xiang Zhang
+
+..
+
+.. bpo: 25825
+.. date: 9682
+.. nonce: JD8aRp
+.. section: Build
+
+Correct the references to Modules/python.exp and ld_so_aix, which are
+required on AIX. This updates references to an installation path that was
+changed in 3.2a4, and undoes changed references to the build tree that were
+made in 3.5.0a1.
+
+..
+
+.. bpo: 27453
+.. date: 9681
+.. nonce: Pb5DBi
+.. section: Build
+
+CPP invocation in configure must use CPPFLAGS. Patch by Chi Hsuan Yen.
+
+..
+
+.. bpo: 27641
+.. date: 9680
+.. nonce: eGzgCk
+.. section: Build
+
+The configure script now inserts comments into the makefile to prevent the
+pgen and _freeze_importlib executables from being cross-compiled.
+
+..
+
+.. bpo: 26662
+.. date: 9679
+.. nonce: XkwRxM
+.. section: Build
+
+Set PYTHON_FOR_GEN in configure as the Python program to be used for file
+generation during the build.
+
+..
+
+.. bpo: 10910
+.. date: 9678
+.. nonce: ZdRayb
+.. section: Build
+
+Avoid C++ compilation errors on FreeBSD and OS X. Also update FreedBSD
+version checks for the original ctype UTF-8 workaround.
+
+..
+
+.. bpo: 28676
+.. date: 9677
+.. nonce: Wxf6Ds
+.. section: Build
+
+Prevent missing 'getentropy' declaration warning on macOS. Patch by Gareth
+Rees.
--- /dev/null
+.. bpo: 30119
+.. date: 2017-07-26-15-11-17
+.. nonce: DZ6C_S
+.. release date: 2017-08-07
+.. section: Library
+
+ftplib.FTP.putline() now throws ValueError on commands that contains CR or
+LF. Patch by Dong-hee Na.
--- /dev/null
+.. bpo: 30730
+.. date: 084
+.. nonce: rJsyTH
+.. original section: Library
+.. release date: 2017-07-23
+.. section: Security
+
+Prevent environment variables injection in subprocess on Windows. Prevent
+passing other environment variables and command arguments.
+
+..
+
+.. bpo: 30694
+.. date: 083
+.. nonce: WkMWM_
+.. original section: Library
+.. section: Security
+
+Upgrade expat copy from 2.2.0 to 2.2.1 to get fixes of multiple security
+vulnerabilities including: CVE-2017-9233 (External entity infinite loop
+DoS), CVE-2016-9063 (Integer overflow, re-fix), CVE-2016-0718 (Fix
+regression bugs from 2.2.0's fix to CVE-2016-0718) and CVE-2012-0876
+(Counter hash flooding with SipHash). Note: the CVE-2016-5300 (Use
+os-specific entropy sources like getrandom) doesn't impact Python, since Python
+already gets entropy from the OS to set the expat secret using
+``XML_SetHashSalt()``.
+
+..
+
+.. bpo: 30500
+.. date: 081
+.. nonce: 1VG7R-
+.. original section: Library
+.. section: Security
+
+Fix urllib.parse.splithost() to correctly parse fragments. For example,
+``splithost('//127.0.0.1#@evil.com/')`` now correctly returns the
+``127.0.0.1`` host, instead of treating ``@evil.com`` as the host in an
+authentication (``login@host``).
+
+..
+
+.. bpo: 29591
+.. date: 076
+.. nonce: ExKblw
+.. original section: Library
+.. section: Security
+
+Update expat copy from 2.1.1 to 2.2.0 to get fixes of CVE-2016-0718 and
+CVE-2016-4472. See https://sourceforge.net/p/expat/bugs/537/ for more
+information.
+
+..
+
+.. bpo: 30876
+.. date: 2017-07-11-06-31-32
+.. nonce: x35jZX
+.. section: Core and Builtins
+
+Relative import from unloaded package now reimports the package instead of
+failing with SystemError. Relative import from non-package now fails with
+ImportError rather than SystemError.
+
+..
+
+.. bpo: 30765
+.. date: 2017-06-26-14-29-50
+.. nonce: Q5iBmf
+.. section: Core and Builtins
+
+Avoid blocking in pthread_mutex_lock() when PyThread_acquire_lock() is asked
+not to block.
+
+..
+
+.. bpo: 27945
+.. date: 100
+.. nonce: p29r3O
+.. section: Core and Builtins
+
+Fixed various segfaults with dict when input collections are mutated during
+searching, inserting or comparing. Based on patches by Duane Griffin and
+Tim Mitchell.
+
+..
+
+.. bpo: 25794
+.. date: 099
+.. nonce: xfPwqm
+.. section: Core and Builtins
+
+Fixed type.__setattr__() and type.__delattr__() for non-interned attribute
+names. Based on patch by Eryk Sun.
+
+..
+
+.. bpo: 29935
+.. date: 098
+.. nonce: vgjdJo
+.. section: Core and Builtins
+
+Fixed error messages in the index() method of tuple, list and deque when
+pass indices of wrong type.
+
+..
+
+.. bpo: 28876
+.. date: 097
+.. nonce: cU-sGT
+.. section: Core and Builtins
+
+``bool(range)`` works even if ``len(range)`` raises :exc:`OverflowError`.
+
+..
+
+.. bpo: 29600
+.. date: 096
+.. nonce: 77wQ6C
+.. section: Core and Builtins
+
+Fix wrapping coroutine return values in StopIteration.
+
+..
+
+.. bpo: 29537
+.. date: 095
+.. nonce: lu1ysY
+.. section: Core and Builtins
+
+Restore runtime compatibility with bytecode files generated by CPython 3.5.0
+to 3.5.2, and adjust the eval loop to avoid the problems that could be
+caused by the malformed variant of the BUILD_MAP_UNPACK_WITH_CALL opcode
+that they may contain. Patch by Petr Viktorin, Serhiy Storchaka, and Nick
+Coghlan.
+
+..
+
+.. bpo: 28598
+.. date: 094
+.. nonce: QxbzQn
+.. section: Core and Builtins
+
+Support __rmod__ for subclasses of str being called before str.__mod__.
+Patch by Martijn Pieters.
+
+..
+
+.. bpo: 29602
+.. date: 093
+.. nonce: qyyskC
+.. section: Core and Builtins
+
+Fix incorrect handling of signed zeros in complex constructor for complex
+subclasses and for inputs having a __complex__ method. Patch by Serhiy
+Storchaka.
+
+..
+
+.. bpo: 29347
+.. date: 092
+.. nonce: 1RPPGN
+.. section: Core and Builtins
+
+Fixed possibly dereferencing undefined pointers when creating weakref
+objects.
+
+..
+
+.. bpo: 29438
+.. date: 091
+.. nonce: IKxD6I
+.. section: Core and Builtins
+
+Fixed use-after-free problem in key sharing dict.
+
+..
+
+.. bpo: 29319
+.. date: 090
+.. nonce: KLDUZf
+.. section: Core and Builtins
+
+Prevent RunMainFromImporter overwriting sys.path[0].
+
+..
+
+.. bpo: 29337
+.. date: 089
+.. nonce: bjX8AE
+.. section: Core and Builtins
+
+Fixed possible BytesWarning when compare the code objects. Warnings could be
+emitted at compile time.
+
+..
+
+.. bpo: 29478
+.. date: 088
+.. nonce: rTQ-qy
+.. section: Core and Builtins
+
+If max_line_length=None is specified while using the Compat32 policy, it is
+no longer ignored. Patch by Mircea Cosbuc.
+
+..
+
+.. bpo: 29403
+.. date: 2017-07-20-02-29-49
+.. nonce: 3RinCV
+.. section: Library
+
+Fix ``unittest.mock``'s autospec to not fail on method-bound builtin
+functions. Patch by Aaron Gallagher.
+
+..
+
+.. bpo: 30961
+.. date: 2017-07-18-23-47-51
+.. nonce: 064jz0
+.. section: Library
+
+Fix decrementing a borrowed reference in tracemalloc.
+
+..
+
+.. bpo: 30886
+.. date: 2017-07-10-12-14-22
+.. nonce: nqQj34
+.. section: Library
+
+Fix multiprocessing.Queue.join_thread(): it now waits until the thread
+completes, even if the thread was started by the same process which created
+the queue.
+
+..
+
+.. bpo: 29854
+.. date: 2017-07-07-02-18-57
+.. nonce: J8wKb_
+.. section: Library
+
+Fix segfault in readline when using readline's history-size option. Patch
+by Nir Soffer.
+
+..
+
+.. bpo: 30807
+.. date: 2017-06-29-22-04-44
+.. nonce: sLtjY-
+.. section: Library
+
+signal.setitimer() may disable the timer when passed a tiny value.
+Tiny values (such as 1e-6) are valid non-zero values for setitimer(), which
+is specified as taking microsecond-resolution intervals. However, on some
+platform, our conversion routine could convert 1e-6 into a zero interval,
+therefore disabling the timer instead of (re-)scheduling it.
+
+..
+
+.. bpo: 30441
+.. date: 2017-06-29-14-25-14
+.. nonce: 3Wh9kc
+.. section: Library
+
+Fix bug when modifying os.environ while iterating over it
+
+..
+
+.. bpo: 30532
+.. date: 2017-06-26-11-01-59
+.. nonce: qTeL1o
+.. section: Library
+
+Fix email header value parser dropping folding white space in certain cases.
+
+..
+
+.. bpo: 29169
+.. date: 087
+.. nonce: 8ypApm
+.. section: Library
+
+Update zlib to 1.2.11.
+
+..
+
+.. bpo: 30879
+.. date: 086
+.. nonce: N3KI-o
+.. section: Library
+
+os.listdir() and os.scandir() now emit bytes names when called with
+bytes-like argument.
+
+..
+
+.. bpo: 30746
+.. date: 085
+.. nonce: 7drQI0
+.. section: Library
+
+Prohibited the '=' character in environment variable names in
+``os.putenv()`` and ``os.spawn*()``.
+
+..
+
+.. bpo: 29755
+.. date: 082
+.. nonce: diQcY_
+.. section: Library
+
+Fixed the lgettext() family of functions in the gettext module. They now
+always return bytes.
+
+..
+
+.. bpo: 30645
+.. date: 080
+.. nonce: oYzbbW
+.. section: Library
+
+Fix path calculation in imp.load_package(), fixing it for cases when a
+package is only shipped with bytecodes. Patch by Alexandru Ardelean.
+
+..
+
+.. bpo: 23890
+.. date: 079
+.. nonce: GCFAAZ
+.. section: Library
+
+unittest.TestCase.assertRaises() now manually breaks a reference cycle to
+not keep objects alive longer than expected.
+
+..
+
+.. bpo: 30149
+.. date: 078
+.. nonce: hE649r
+.. section: Library
+
+inspect.signature() now supports callables with variable-argument parameters
+wrapped with partialmethod. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 29931
+.. date: 077
+.. nonce: tfcTwK
+.. section: Library
+
+Fixed comparison check for ipaddress.ip_interface objects. Patch by Sanjay
+Sundaresan.
+
+..
+
+.. bpo: 24484
+.. date: 075
+.. nonce: vFem8K
+.. section: Library
+
+Avoid race condition in multiprocessing cleanup.
+
+..
+
+.. bpo: 28994
+.. date: 074
+.. nonce: 9vzun1
+.. section: Library
+
+The traceback no longer displayed for SystemExit raised in a callback
+registered by atexit.
+
+..
+
+.. bpo: 30508
+.. date: 073
+.. nonce: wNWRS2
+.. section: Library
+
+Don't log exceptions if Task/Future "cancel()" method was called.
+
+..
+
+.. bpo: 28556
+.. date: 072
+.. nonce: mESP7G
+.. section: Library
+
+Updates to typing module: Add generic AsyncContextManager, add support for
+ContextManager on all versions. Original PRs by Jelle Zijlstra and Ivan
+Levkivskyi
+
+..
+
+.. bpo: 29870
+.. date: 071
+.. nonce: p960Ih
+.. section: Library
+
+Fix ssl sockets leaks when connection is aborted in asyncio/ssl
+implementation. Patch by Michaël Sghaïer.
+
+..
+
+.. bpo: 29743
+.. date: 070
+.. nonce: en2P4s
+.. section: Library
+
+Closing transport during handshake process leaks open socket. Patch by
+Nikolay Kim
+
+..
+
+.. bpo: 27585
+.. date: 069
+.. nonce: 0Ugqqu
+.. section: Library
+
+Fix waiter cancellation in asyncio.Lock. Patch by Mathieu Sornay.
+
+..
+
+.. bpo: 30418
+.. date: 068
+.. nonce: EwISQm
+.. section: Library
+
+On Windows, subprocess.Popen.communicate() now also ignore EINVAL on
+stdin.write() if the child process is still running but closed the pipe.
+
+..
+
+.. bpo: 30378
+.. date: 067
+.. nonce: R_19_5
+.. section: Library
+
+Fix the problem that logging.handlers.SysLogHandler cannot handle IPv6
+addresses.
+
+..
+
+.. bpo: 29960
+.. date: 066
+.. nonce: g0wr3r
+.. section: Library
+
+Preserve generator state when _random.Random.setstate() raises an exception.
+Patch by Bryan Olson.
+
+..
+
+.. bpo: 30414
+.. date: 065
+.. nonce: jGl1Lb
+.. section: Library
+
+multiprocessing.Queue._feed background running thread do not break from main
+loop on exception.
+
+..
+
+.. bpo: 30003
+.. date: 064
+.. nonce: BOl9HE
+.. section: Library
+
+Fix handling escape characters in HZ codec. Based on patch by Ma Lin.
+
+..
+
+.. bpo: 30301
+.. date: 063
+.. nonce: ywOkjN
+.. section: Library
+
+Fix AttributeError when using SimpleQueue.empty() under *spawn* and
+*forkserver* start methods.
+
+..
+
+.. bpo: 30329
+.. date: 062
+.. nonce: EuT36N
+.. section: Library
+
+imaplib and poplib now catch the Windows socket WSAEINVAL error (code 10022)
+on shutdown(SHUT_RDWR): An invalid operation was attempted. This error
+occurs sometimes on SSL connections.
+
+..
+
+.. bpo: 30375
+.. date: 061
+.. nonce: 9c8qM7
+.. section: Library
+
+Warnings emitted when compile a regular expression now always point to the
+line in the user code. Previously they could point into inners of the re
+module if emitted from inside of groups or conditionals.
+
+..
+
+.. bpo: 30048
+.. date: 060
+.. nonce: ELRx8R
+.. section: Library
+
+Fixed ``Task.cancel()`` can be ignored when the task is running coroutine
+and the coroutine returned without any more ``await``.
+
+..
+
+.. bpo: 29990
+.. date: 059
+.. nonce: HWV6KE
+.. section: Library
+
+Fix range checking in GB18030 decoder. Original patch by Ma Lin.
+
+..
+
+.. bpo: 26293
+.. date: 058
+.. nonce: wig0YG
+.. section: Library
+
+Change resulted because of zipfile breakage. (See also: bpo-29094)
+
+..
+
+.. bpo: 30243
+.. date: 057
+.. nonce: RHQt0v
+.. section: Library
+
+Removed the __init__ methods of _json's scanner and encoder. Misusing them
+could cause memory leaks or crashes. Now scanner and encoder objects are
+completely initialized in the __new__ methods.
+
+..
+
+.. bpo: 30185
+.. date: 056
+.. nonce: Tiu1n8
+.. section: Library
+
+Avoid KeyboardInterrupt tracebacks in forkserver helper process when Ctrl-C
+is received.
+
+..
+
+.. bpo: 28556
+.. date: 055
+.. nonce: 51gjbP
+.. section: Library
+
+Various updates to typing module: add typing.NoReturn type, use
+WrapperDescriptorType, minor bug-fixes. Original PRs by Jim
+Fasarakis-Hilliard and Ivan Levkivskyi.
+
+..
+
+.. bpo: 30205
+.. date: 054
+.. nonce: BsxO34
+.. section: Library
+
+Fix getsockname() for unbound AF_UNIX sockets on Linux.
+
+..
+
+.. bpo: 30070
+.. date: 053
+.. nonce: XM_B41
+.. section: Library
+
+Fixed leaks and crashes in errors handling in the parser module.
+
+..
+
+.. bpo: 30061
+.. date: 052
+.. nonce: 2w_dX9
+.. section: Library
+
+Fixed crashes in IOBase methods __next__() and readlines() when readline()
+or __next__() respectively return non-sizeable object. Fixed possible other
+errors caused by not checking results of PyObject_Size(), PySequence_Size(),
+or PyMapping_Size().
+
+..
+
+.. bpo: 30068
+.. date: 051
+.. nonce: n4q47r
+.. section: Library
+
+_io._IOBase.readlines will check if it's closed first when hint is present.
+
+..
+
+.. bpo: 29694
+.. date: 050
+.. nonce: LWKxb1
+.. section: Library
+
+Fixed race condition in pathlib mkdir with flags parents=True. Patch by
+Armin Rigo.
+
+..
+
+.. bpo: 29692
+.. date: 049
+.. nonce: oyWrAE
+.. section: Library
+
+Fixed arbitrary unchaining of RuntimeError exceptions in
+contextlib.contextmanager. Patch by Siddharth Velankar.
+
+..
+
+.. bpo: 29998
+.. date: 048
+.. nonce: poeIKD
+.. section: Library
+
+Pickling and copying ImportError now preserves name and path attributes.
+
+..
+
+.. bpo: 29942
+.. date: 047
+.. nonce: CsGNuT
+.. section: Library
+
+Fix a crash in itertools.chain.from_iterable when encountering long runs of
+empty iterables.
+
+..
+
+.. bpo: 27863
+.. date: 046
+.. nonce: pPYHHI
+.. section: Library
+
+Fixed multiple crashes in ElementTree caused by race conditions and wrong
+types.
+
+..
+
+.. bpo: 28699
+.. date: 045
+.. nonce: wZztZP
+.. section: Library
+
+Fixed a bug in pools in multiprocessing.pool that raising an exception at
+the very first of an iterable may swallow the exception or make the program
+hang. Patch by Davin Potts and Xiang Zhang.
+
+..
+
+.. bpo: 25803
+.. date: 044
+.. nonce: CPDR0W
+.. section: Library
+
+Avoid incorrect errors raised by Path.mkdir(exist_ok=True) when the OS gives
+priority to errors such as EACCES over EEXIST.
+
+..
+
+.. bpo: 29861
+.. date: 043
+.. nonce: t2ZoRK
+.. section: Library
+
+Release references to tasks, their arguments and their results as soon as
+they are finished in multiprocessing.Pool.
+
+..
+
+.. bpo: 29884
+.. date: 042
+.. nonce: kWXR8W
+.. section: Library
+
+faulthandler: Restore the old sigaltstack during teardown. Patch by
+Christophe Zeitouny.
+
+..
+
+.. bpo: 25455
+.. date: 041
+.. nonce: ZsahHN
+.. section: Library
+
+Fixed crashes in repr of recursive buffered file-like objects.
+
+..
+
+.. bpo: 29800
+.. date: 040
+.. nonce: d2xASa
+.. section: Library
+
+Fix crashes in partial.__repr__ if the keys of partial.keywords are not
+strings. Patch by Michael Seifert.
+
+..
+
+.. bpo: 29742
+.. date: 039
+.. nonce: 8hqfEO
+.. section: Library
+
+get_extra_info() raises exception if get called on closed ssl transport.
+Patch by Nikolay Kim.
+
+..
+
+.. bpo: 8256
+.. date: 038
+.. nonce: jAwGQH
+.. section: Library
+
+Fixed possible failing or crashing input() if attributes "encoding" or
+"errors" of sys.stdin or sys.stdout are not set or are not strings.
+
+..
+
+.. bpo: 28298
+.. date: 037
+.. nonce: xfm84U
+.. section: Library
+
+Fix a bug that prevented array 'Q', 'L' and 'I' from accepting big intables
+(objects that have __int__) as elements. Patch by Oren Milman.
+
+..
+
+.. bpo: 29615
+.. date: 036
+.. nonce: OpFKzg
+.. section: Library
+
+SimpleXMLRPCDispatcher no longer chains KeyError (or any other exception) to
+exception(s) raised in the dispatched methods. Patch by Petr Motejlek.
+
+..
+
+.. bpo: 29704
+.. date: 035
+.. nonce: WHbx27
+.. section: Library
+
+asyncio.subprocess.SubprocessStreamProtocol no longer closes before all
+pipes are closed.
+
+..
+
+.. bpo: 29703
+.. date: 034
+.. nonce: ZdsPCR
+.. section: Library
+
+Fix asyncio to support instantiation of new event loops in child processes.
+
+..
+
+.. bpo: 29376
+.. date: 033
+.. nonce: rrJhJy
+.. section: Library
+
+Fix assertion error in threading._DummyThread.is_alive().
+
+..
+
+.. bpo: 29110
+.. date: 032
+.. nonce: wmE-_T
+.. section: Library
+
+Fix file object leak in aifc.open() when file is given as a filesystem path
+and is not in valid AIFF format. Patch by Anthony Zhang.
+
+..
+
+.. bpo: 28961
+.. date: 031
+.. nonce: Rt93vg
+.. section: Library
+
+Fix unittest.mock._Call helper: don't ignore the name parameter anymore.
+Patch written by Jiajun Huang.
+
+..
+
+.. bpo: 29532
+.. date: 030
+.. nonce: YCwVQn
+.. section: Library
+
+Altering a kwarg dictionary passed to functools.partial() no longer affects
+a partial object after creation.
+
+..
+
+.. bpo: 28556
+.. date: 029
+.. nonce: p6967e
+.. section: Library
+
+Various updates to typing module: typing.Counter, typing.ChainMap, improved
+ABC caching, etc. Original PRs by Jelle Zijlstra, Ivan Levkivskyi, Manuel
+Krebber, and Łukasz Langa.
+
+..
+
+.. bpo: 29100
+.. date: 028
+.. nonce: LAAERS
+.. section: Library
+
+Fix datetime.fromtimestamp() regression introduced in Python 3.6.0: check
+minimum and maximum years.
+
+..
+
+.. bpo: 29519
+.. date: 027
+.. nonce: oGGgZ4
+.. section: Library
+
+Fix weakref spewing exceptions during interpreter shutdown when used with a
+rare combination of multiprocessing and custom codecs.
+
+..
+
+.. bpo: 29416
+.. date: 026
+.. nonce: KJGyI_
+.. section: Library
+
+Prevent infinite loop in pathlib.Path.mkdir
+
+..
+
+.. bpo: 29444
+.. date: 025
+.. nonce: cEwgmk
+.. section: Library
+
+Fixed out-of-bounds buffer access in the group() method of the match object.
+Based on patch by WGH.
+
+..
+
+.. bpo: 29335
+.. date: 024
+.. nonce: _KC7IK
+.. section: Library
+
+Fix subprocess.Popen.wait() when the child process has exited to a stopped
+instead of terminated state (ex: when under ptrace).
+
+..
+
+.. bpo: 29290
+.. date: 023
+.. nonce: XBqptF
+.. section: Library
+
+Fix a regression in argparse that help messages would wrap at non-breaking
+spaces.
+
+..
+
+.. bpo: 28735
+.. date: 022
+.. nonce: admHLO
+.. section: Library
+
+Fixed the comparison of mock.MagickMock with mock.ANY.
+
+..
+
+.. bpo: 29011
+.. date: 021
+.. nonce: MI5f2R
+.. section: Library
+
+Fix an important omission by adding Deque to the typing module.
+
+..
+
+.. bpo: 29219
+.. date: 020
+.. nonce: kxui7t
+.. section: Library
+
+Fixed infinite recursion in the repr of uninitialized ctypes.CDLL instances.
+
+..
+
+.. bpo: 28969
+.. date: 019
+.. nonce: j3HJYO
+.. section: Library
+
+Fixed race condition in C implementation of functools.lru_cache. KeyError
+could be raised when cached function with full cache was simultaneously
+called from different threads with the same uncached arguments.
+
+..
+
+.. bpo: 29142
+.. date: 018
+.. nonce: xo6kAv
+.. section: Library
+
+In urllib.request, suffixes in no_proxy environment variable with leading
+dots could match related hostnames again (e.g. .b.c matches a.b.c). Patch by
+Milan Oberkirch.
+
+..
+
+.. bpo: 30176
+.. date: 013
+.. nonce: VivmCg
+.. section: Documentation
+
+Add missing attribute related constants in curses documentation.
+
+..
+
+.. bpo: 26985
+.. date: 012
+.. nonce: NB5_9S
+.. section: Documentation
+
+Add missing info of code object in inspect documentation.
+
+..
+
+.. bpo: 28929
+.. date: 011
+.. nonce: Md7kb0
+.. section: Documentation
+
+Link the documentation to its source file on GitHub.
+
+..
+
+.. bpo: 25008
+.. date: 010
+.. nonce: CeIzyU
+.. section: Documentation
+
+Document smtpd.py as effectively deprecated and add a pointer to aiosmtpd, a
+third-party asyncio-based replacement.
+
+..
+
+.. bpo: 26355
+.. date: 009
+.. nonce: SDq_8Y
+.. section: Documentation
+
+Add canonical header link on each page to corresponding major version of the
+documentation. Patch by Matthias Bussonnier.
+
+..
+
+.. bpo: 29349
+.. date: 008
+.. nonce: PjSo-t
+.. section: Documentation
+
+Fix Python 2 syntax in code for building the documentation.
+
+..
+
+.. bpo: 30822
+.. date: 2017-07-20-14-29-54
+.. nonce: X0wREo
+.. section: Tests
+
+Fix regrtest command line parser to allow passing -u extralargefile to run
+test_zipfile64.
+
+..
+
+.. bpo: 30383
+.. date: 2017-06-27-13-52-43
+.. nonce: rCmrv7
+.. section: Tests
+
+regrtest: Enhance regrtest and backport features from the master branch.
+Add options: --coverage, --testdir, --list-tests (list test files, don't run
+them), --list-cases (list test identifiers, don't run them, :issue:`30523`),
+--matchfile (load a list of test filters from a text file, :issue:`30540`),
+--slowest (alias to --slow).
+Enhance output: add timestamp, test result, currently running tests, "Tests
+result: xxx" summary with total duration, etc.
+Fix reference leak hunting in regrtest, --huntrleaks: regrtest now warms up
+caches, create explicitly all internal singletons which are created on
+demand to prevent false positives when checking for reference leaks.
+(:issue:`30675`).
+
+..
+
+.. bpo: 30357
+.. date: 004
+.. nonce: n4CPEa
+.. section: Tests
+
+test_thread: setUp() now uses support.threading_setup() and
+support.threading_cleanup() to wait until threads complete to avoid random
+side effects on following tests. Initial patch written by Grzegorz Grzywacz.
+
+..
+
+.. bpo: 28087
+.. date: 003
+.. nonce: m8dc4R
+.. section: Tests
+
+Skip test_asyncore and test_eintr poll failures on macOS. Skip some tests of
+select.poll when running on macOS due to unresolved issues with the
+underlying system poll function on some macOS versions.
+
+..
+
+.. bpo: 30197
+.. date: 002
+.. nonce: c5wRfu
+.. section: Tests
+
+Enhanced functions swap_attr() and swap_item() in the test.support module.
+They now work when delete replaced attribute or item inside the with
+statement. The old value of the attribute or item (or None if it doesn't
+exist) now will be assigned to the target of the "as" clause, if there is
+one.
+
+..
+
+.. bpo: 29571
+.. date: 001
+.. nonce: r6Dixr
+.. section: Tests
+
+to match the behaviour of the ``re.LOCALE`` flag, test_re.test_locale_flag
+now uses ``locale.getpreferredencoding(False)`` to determine the candidate
+encoding for the test regex (allowing it to correctly skip the test when the
+default locale encoding is a multi-byte encoding)
+
+..
+
+.. bpo: 29243
+.. date: 007
+.. nonce: WDK4hT
+.. section: Build
+
+Prevent unnecessary rebuilding of Python during ``make test``, ``make
+install`` and some other make targets when configured with
+``--enable-optimizations``.
+
+..
+
+.. bpo: 23404
+.. date: 006
+.. nonce: PdYVWg
+.. section: Build
+
+Don't regenerate generated files based on file modification time anymore:
+the action is now explicit. Replace ``make touch`` with ``make regen-all``.
+
+..
+
+.. bpo: 29643
+.. date: 005
+.. nonce: 4WLIJQ
+.. section: Build
+
+Fix ``--enable-optimization`` didn't work.
+
+..
+
+.. bpo: 30687
+.. date: 017
+.. nonce: 8mqHnu
+.. section: Windows
+
+Locate msbuild.exe on Windows when building rather than vcvarsall.bat
+
+..
+
+.. bpo: 29392
+.. date: 016
+.. nonce: OtqS5t
+.. section: Windows
+
+Prevent crash when passing invalid arguments into msvcrt module.
+
+..
+
+.. bpo: 27867
+.. date: 015
+.. nonce: VMCoJU
+.. section: C API
+
+Function PySlice_GetIndicesEx() is replaced with a macro if Py_LIMITED_API
+is set to the value between 0x03050400 and 0x03060000 (not including) or
+0x03060100 or higher.
+
+..
+
+.. bpo: 29083
+.. date: 014
+.. nonce: tGTjr_
+.. section: C API
+
+Fixed the declaration of some public API functions. PyArg_VaParse() and
+PyArg_VaParseTupleAndKeywords() were not available in limited API.
+PyArg_ValidateKeywordArguments(), PyArg_UnpackTuple() and Py_BuildValue()
+were not available in limited API of version < 3.3 when PY_SSIZE_T_CLEAN is
+defined.
--- /dev/null
+.. bpo: 0
+.. date: 2018-02-04
+.. no changes: True
+.. nonce: G9yme3
+.. release date: 2018-02-04
+.. section: Library
+
+There were no new changes in version 3.5.5.
--- /dev/null
+.. bpo: 32551
+.. date: 2018-01-16-16-05-37
+.. nonce: U0z4W-
+.. release date: 2018-01-23
+.. section: Security
+
+The ``sys.path[0]`` initialization change for bpo-29139 caused a regression
+by revealing an inconsistency in how sys.path is initialized when executing
+``__main__`` from a zipfile, directory, or other import location. This is
+considered a potential security issue, as it may lead to privileged
+processes unexpectedly loading code from user controlled directories in
+situations where that was not previously the case.
+The interpreter now consistently avoids ever adding the import location's
+parent directory to ``sys.path``, and ensures no other ``sys.path`` entries
+are inadvertently modified when inserting the import location named on the
+command line. (Originally reported as bpo-29723 against Python 3.6rc1, but
+it was missed at the time that the then upcoming Python 3.5.4 release would
+also be affected)
+
+..
+
+.. bpo: 30657
+.. date: 2017-12-01-18-51-03
+.. nonce: Fd8kId
+.. section: Security
+
+Fixed possible integer overflow in PyBytes_DecodeEscape, CVE-2017-1000158.
+Original patch by Jay Bosamiya; rebased to Python 3 by Miro Hrončok.
+
+..
+
+.. bpo: 30947
+.. date: 2017-09-05-20-34-44
+.. nonce: iNMmm4
+.. section: Security
+
+Upgrade libexpat embedded copy from version 2.2.1 to 2.2.3 to get security
+fixes.
+
+..
+
+.. bpo: 31095
+.. date: 2017-08-01-18-48-30
+.. nonce: bXWZDb
+.. section: Core and Builtins
+
+Fix potential crash during GC caused by ``tp_dealloc`` which doesn't call
+``PyObject_GC_UnTrack()``.
+
+..
+
+.. bpo: 32072
+.. date: 2017-11-18-21-13-52
+.. nonce: nwDV8L
+.. section: Library
+
+Fixed issues with binary plists:
+Fixed saving bytearrays.
+Identical objects will be saved only once.
+Equal references will be load as identical objects.
+Added support for saving and loading recursive data structures.
+
+..
+
+.. bpo: 31170
+.. date: 2017-09-05-20-35-21
+.. nonce: QGmJ1t
+.. section: Library
+
+expat: Update libexpat from 2.2.3 to 2.2.4. Fix copying of partial
+characters for UTF-8 input (libexpat bug 115):
+https://github.com/libexpat/libexpat/issues/115
--- /dev/null
+.. bpo: 0
+.. date: 9796
+.. no changes: True
+.. nonce: F9ENBV
+.. release date: 2016-12-23
+
+No changes since release candidate 2
--- /dev/null
+.. release date: 2016-05-16
+.. bpo: 26657
+.. date: 9135
+.. nonce: C_-XFg
+.. original section: Library
+.. section: Security
+
+Fix directory traversal vulnerability with http.server on Windows. This
+fixes a regression that was introduced in 3.3.4rc1 and 3.4.0rc1. Based on
+patch by Philipp Hagemeister.
+
+..
+
+.. bpo: 26313
+.. date: 9102
+.. nonce: LjZAjy
+.. original section: Library
+.. section: Security
+
+ssl.py _load_windows_store_certs fails if windows cert store is empty. Patch
+by Baji.
+
+..
+
+.. bpo: 25939
+.. date: 9076
+.. nonce: X49Fqd
+.. original section: Library
+.. section: Security
+
+On Windows open the cert store readonly in ssl.enum_certificates.
+
+..
+
+.. bpo: 20041
+.. date: 9253
+.. nonce: TypyGp
+.. section: Core and Builtins
+
+Fixed TypeError when frame.f_trace is set to None. Patch by Xavier de Gaye.
+
+..
+
+.. bpo: 26168
+.. date: 9252
+.. nonce: -nPBL6
+.. section: Core and Builtins
+
+Fixed possible refleaks in failing Py_BuildValue() with the "N" format unit.
+
+..
+
+.. bpo: 26991
+.. date: 9251
+.. nonce: yWGNhz
+.. section: Core and Builtins
+
+Fix possible refleak when creating a function with annotations.
+
+..
+
+.. bpo: 27039
+.. date: 9250
+.. nonce: oO-wLV
+.. section: Core and Builtins
+
+Fixed bytearray.remove() for values greater than 127. Based on patch by Joe
+Jevnik.
+
+..
+
+.. bpo: 23640
+.. date: 9249
+.. nonce: kvNC4c
+.. section: Core and Builtins
+
+int.from_bytes() no longer bypasses constructors for subclasses.
+
+..
+
+.. bpo: 27005
+.. date: 9248
+.. nonce: ZtcJf-
+.. section: Core and Builtins
+
+Optimized the float.fromhex() class method for exact float. It is now 2
+times faster.
+
+..
+
+.. bpo: 18531
+.. date: 9247
+.. nonce: PkXgtO
+.. section: Core and Builtins
+
+Single var-keyword argument of dict subtype was passed unscathed to the
+C-defined function. Now it is converted to exact dict.
+
+..
+
+.. bpo: 26811
+.. date: 9246
+.. nonce: oNzUWt
+.. section: Core and Builtins
+
+gc.get_objects() no longer contains a broken tuple with NULL pointer.
+
+..
+
+.. bpo: 20120
+.. date: 9245
+.. nonce: c-FZZc
+.. section: Core and Builtins
+
+Use RawConfigParser for .pypirc parsing, removing support for interpolation
+unintentionally added with move to Python 3. Behavior no longer does any
+interpolation in .pypirc files, matching behavior in Python 2.7 and
+Setuptools 19.0.
+
+..
+
+.. bpo: 26249
+.. date: 9244
+.. nonce: ZbpWF3
+.. section: Core and Builtins
+
+Memory functions of the :c:func:`PyMem_Malloc` domain
+(:c:data:`PYMEM_DOMAIN_MEM`) now use the :ref:`pymalloc allocator
+<pymalloc>` rather than system :c:func:`malloc`. Applications calling
+:c:func:`PyMem_Malloc` without holding the GIL can now crash: use
+``PYTHONMALLOC=debug`` environment variable to validate the usage of memory
+allocators in your application.
+
+..
+
+.. bpo: 26802
+.. date: 9243
+.. nonce: hWpU4v
+.. section: Core and Builtins
+
+Optimize function calls only using unpacking like ``func(*tuple)`` (no other
+positional argument, no keyword): avoid copying the tuple. Patch written by
+Joe Jevnik.
+
+..
+
+.. bpo: 26659
+.. date: 9242
+.. nonce: 5PRa83
+.. section: Core and Builtins
+
+Make the builtin slice type support cycle collection.
+
+..
+
+.. bpo: 26718
+.. date: 9241
+.. nonce: K5PQ8j
+.. section: Core and Builtins
+
+super.__init__ no longer leaks memory if called multiple times. NOTE: A
+direct call of super.__init__ is not endorsed!
+
+..
+
+.. bpo: 27138
+.. date: 9240
+.. nonce: ifYEro
+.. section: Core and Builtins
+
+Fix the doc comment for FileFinder.find_spec().
+
+..
+
+.. bpo: 27147
+.. date: 9239
+.. nonce: tCCgmH
+.. section: Core and Builtins
+
+Mention :pep:`420` in the importlib docs.
+
+..
+
+.. bpo: 25339
+.. date: 9238
+.. nonce: ZcaC2E
+.. section: Core and Builtins
+
+PYTHONIOENCODING now has priority over locale in setting the error handler
+for stdin and stdout.
+
+..
+
+.. bpo: 26494
+.. date: 9237
+.. nonce: G6eXIi
+.. section: Core and Builtins
+
+Fixed crash on iterating exhausting iterators. Affected classes are generic
+sequence iterators, iterators of str, bytes, bytearray, list, tuple, set,
+frozenset, dict, OrderedDict, corresponding views and os.scandir() iterator.
+
+..
+
+.. bpo: 26574
+.. date: 9236
+.. nonce: D2YL_w
+.. section: Core and Builtins
+
+Optimize ``bytes.replace(b'', b'.')`` and ``bytearray.replace(b'', b'.')``.
+Patch written by Josh Snider.
+
+..
+
+.. bpo: 26581
+.. date: 9235
+.. nonce: yNA7nm
+.. section: Core and Builtins
+
+If coding cookie is specified multiple times on a line in Python source code
+file, only the first one is taken to account.
+
+..
+
+.. bpo: 19711
+.. date: 9234
+.. nonce: gDDPJE
+.. section: Core and Builtins
+
+Add tests for reloading namespace packages.
+
+..
+
+.. bpo: 21099
+.. date: 9233
+.. nonce: CuMWZJ
+.. section: Core and Builtins
+
+Switch applicable importlib tests to use :pep:`451` API.
+
+..
+
+.. bpo: 26563
+.. date: 9232
+.. nonce: lyrB2Q
+.. section: Core and Builtins
+
+Debug hooks on Python memory allocators now raise a fatal error if functions
+of the :c:func:`PyMem_Malloc` family are called without holding the GIL.
+
+..
+
+.. bpo: 26564
+.. date: 9231
+.. nonce: xeRXaz
+.. section: Core and Builtins
+
+On error, the debug hooks on Python memory allocators now use the
+:mod:`tracemalloc` module to get the traceback where a memory block was
+allocated.
+
+..
+
+.. bpo: 26558
+.. date: 9230
+.. nonce: s05jz7
+.. section: Core and Builtins
+
+The debug hooks on Python memory allocator :c:func:`PyObject_Malloc` now
+detect when functions are called without holding the GIL.
+
+..
+
+.. bpo: 26516
+.. date: 9229
+.. nonce: OjekqZ
+.. section: Core and Builtins
+
+Add :envvar:`PYTHONMALLOC` environment variable to set the Python memory
+allocators and/or install debug hooks.
+
+..
+
+.. bpo: 26516
+.. date: 9228
+.. nonce: chNJuF
+.. section: Core and Builtins
+
+The :c:func:`PyMem_SetupDebugHooks` function can now also be used on Python
+compiled in release mode.
+
+..
+
+.. bpo: 26516
+.. date: 9227
+.. nonce: q7fu1f
+.. section: Core and Builtins
+
+The :envvar:`PYTHONMALLOCSTATS` environment variable can now also be used on
+Python compiled in release mode. It now has no effect if set to an empty
+string.
+
+..
+
+.. bpo: 26516
+.. date: 9226
+.. nonce: 2k9k6R
+.. section: Core and Builtins
+
+In debug mode, debug hooks are now also installed on Python memory
+allocators when Python is configured without pymalloc.
+
+..
+
+.. bpo: 26464
+.. date: 9225
+.. nonce: 7BreGz
+.. section: Core and Builtins
+
+Fix str.translate() when string is ASCII and first replacements removes
+character, but next replacement uses a non-ASCII character or a string
+longer than 1 character. Regression introduced in Python 3.5.0.
+
+..
+
+.. bpo: 22836
+.. date: 9224
+.. nonce: cimt1y
+.. section: Core and Builtins
+
+Ensure exception reports from PyErr_Display() and PyErr_WriteUnraisable()
+are sensible even when formatting them produces secondary errors. This
+affects the reports produced by sys.__excepthook__() and when __del__()
+raises an exception.
+
+..
+
+.. bpo: 26302
+.. date: 9223
+.. nonce: UD9XQt
+.. section: Core and Builtins
+
+Correct behavior to reject comma as a legal character for cookie names.
+
+..
+
+.. bpo: 26136
+.. date: 9222
+.. nonce: eZ0t1K
+.. section: Core and Builtins
+
+Upgrade the warning when a generator raises StopIteration from
+PendingDeprecationWarning to DeprecationWarning. Patch by Anish Shah.
+
+..
+
+.. bpo: 26204
+.. date: 9221
+.. nonce: x3Zp8E
+.. section: Core and Builtins
+
+The compiler now ignores all constant statements: bytes, str, int, float,
+complex, name constants (None, False, True), Ellipsis and ast.Constant; not
+only str and int. For example, ``1.0`` is now ignored in ``def f(): 1.0``.
+
+..
+
+.. bpo: 4806
+.. date: 9220
+.. nonce: i9m3hj
+.. section: Core and Builtins
+
+Avoid masking the original TypeError exception when using star (``*``)
+unpacking in function calls. Based on patch by Hagen Fürstenau and Daniel
+Urban.
+
+..
+
+.. bpo: 26146
+.. date: 9219
+.. nonce: HKrUth
+.. section: Core and Builtins
+
+Add a new kind of AST node: ``ast.Constant``. It can be used by external AST
+optimizers, but the compiler does not emit directly such node.
+
+..
+
+.. bpo: 23601
+.. date: 9218
+.. nonce: 2E4seG
+.. section: Core and Builtins
+
+Sped-up allocation of dict key objects by using Python's small object
+allocator. (Contributed by Julian Taylor.)
+
+..
+
+.. bpo: 18018
+.. date: 9217
+.. nonce: XKKap3
+.. section: Core and Builtins
+
+Import raises ImportError instead of SystemError if a relative import is
+attempted without a known parent package.
+
+..
+
+.. bpo: 25843
+.. date: 9216
+.. nonce: NtJZie
+.. section: Core and Builtins
+
+When compiling code, don't merge constants if they are equal but have a
+different types. For example, ``f1, f2 = lambda: 1, lambda: 1.0`` is now
+correctly compiled to two different functions: ``f1()`` returns ``1``
+(``int``) and ``f2()`` returns ``1.0`` (``float``), even if ``1`` and
+``1.0`` are equal.
+
+..
+
+.. bpo: 26107
+.. date: 9215
+.. nonce: q0LBMY
+.. section: Core and Builtins
+
+The format of the ``co_lnotab`` attribute of code objects changes to support
+negative line number delta.
+
+..
+
+.. bpo: 26154
+.. date: 9214
+.. nonce: MtnRAH
+.. section: Core and Builtins
+
+Add a new private _PyThreadState_UncheckedGet() function to get the current
+Python thread state, but don't issue a fatal error if it is NULL. This new
+function must be used instead of accessing directly the
+_PyThreadState_Current variable. The variable is no more exposed since
+Python 3.5.1 to hide the exact implementation of atomic C types, to avoid
+compiler issues.
+
+..
+
+.. bpo: 25791
+.. date: 9213
+.. nonce: gllzPw
+.. section: Core and Builtins
+
+If __package__ != __spec__.parent or if neither __package__ or __spec__ are
+defined then ImportWarning is raised.
+
+..
+
+.. bpo: 22995
+.. date: 9212
+.. nonce: KYNKvs
+.. section: Core and Builtins
+
+[UPDATE] Comment out the one of the pickleability tests in
+_PyObject_GetState() due to regressions observed in Cython-based projects.
+
+..
+
+.. bpo: 25961
+.. date: 9211
+.. nonce: Hdjjw0
+.. section: Core and Builtins
+
+Disallowed null characters in the type name.
+
+..
+
+.. bpo: 25973
+.. date: 9210
+.. nonce: Ud__ZP
+.. section: Core and Builtins
+
+Fix segfault when an invalid nonlocal statement binds a name starting with
+two underscores.
+
+..
+
+.. bpo: 22995
+.. date: 9209
+.. nonce: Wq0E86
+.. section: Core and Builtins
+
+Instances of extension types with a state that aren't subclasses of list or
+dict and haven't implemented any pickle-related methods (__reduce__,
+__reduce_ex__, __getnewargs__, __getnewargs_ex__, or __getstate__), can no
+longer be pickled. Including memoryview.
+
+..
+
+.. bpo: 20440
+.. date: 9208
+.. nonce: GCwOfH
+.. section: Core and Builtins
+
+Massive replacing unsafe attribute setting code with special macro
+Py_SETREF.
+
+..
+
+.. bpo: 25766
+.. date: 9207
+.. nonce: jn93Yu
+.. section: Core and Builtins
+
+Special method __bytes__() now works in str subclasses.
+
+..
+
+.. bpo: 25421
+.. date: 9206
+.. nonce: c47YEL
+.. section: Core and Builtins
+
+__sizeof__ methods of builtin types now use dynamic basic size. This allows
+sys.getsize() to work correctly with their subclasses with __slots__
+defined.
+
+..
+
+.. bpo: 25709
+.. date: 9205
+.. nonce: WwGm2k
+.. section: Core and Builtins
+
+Fixed problem with in-place string concatenation and utf-8 cache.
+
+..
+
+.. bpo: 5319
+.. date: 9204
+.. nonce: HxlGwI
+.. section: Core and Builtins
+
+New Py_FinalizeEx() API allowing Python to set an exit status of 120 on
+failure to flush buffered streams.
+
+..
+
+.. bpo: 25485
+.. date: 9203
+.. nonce: 9qnaPt
+.. section: Core and Builtins
+
+telnetlib.Telnet is now a context manager.
+
+..
+
+.. bpo: 24097
+.. date: 9202
+.. nonce: Vt4E-i
+.. section: Core and Builtins
+
+Fixed crash in object.__reduce__() if slot name is freed inside __getattr__.
+
+..
+
+.. bpo: 24731
+.. date: 9201
+.. nonce: h9-hnz
+.. section: Core and Builtins
+
+Fixed crash on converting objects with special methods __bytes__, __trunc__,
+and __float__ returning instances of subclasses of bytes, int, and float to
+subclasses of bytes, int, and float correspondingly.
+
+..
+
+.. bpo: 25630
+.. date: 9200
+.. nonce: ZxzcoY
+.. section: Core and Builtins
+
+Fix a possible segfault during argument parsing in functions that accept
+filesystem paths.
+
+..
+
+.. bpo: 23564
+.. date: 9199
+.. nonce: XHarGG
+.. section: Core and Builtins
+
+Fixed a partially broken sanity check in the _posixsubprocess internals
+regarding how fds_to_pass were passed to the child. The bug had no actual
+impact as subprocess.py already avoided it.
+
+..
+
+.. bpo: 25388
+.. date: 9198
+.. nonce: zm3uuQ
+.. section: Core and Builtins
+
+Fixed tokenizer crash when processing undecodable source code with a null
+byte.
+
+..
+
+.. bpo: 25462
+.. date: 9197
+.. nonce: eXDzgO
+.. section: Core and Builtins
+
+The hash of the key now is calculated only once in most operations in C
+implementation of OrderedDict.
+
+..
+
+.. bpo: 22995
+.. date: 9196
+.. nonce: 90kpuP
+.. section: Core and Builtins
+
+Default implementation of __reduce__ and __reduce_ex__ now rejects builtin
+types with not defined __new__.
+
+..
+
+.. bpo: 24802
+.. date: 9195
+.. nonce: Qie066
+.. section: Core and Builtins
+
+Avoid buffer overreads when int(), float(), compile(), exec() and eval() are
+passed bytes-like objects. These objects are not necessarily terminated by
+a null byte, but the functions assumed they were.
+
+..
+
+.. bpo: 25555
+.. date: 9194
+.. nonce: MUpG-j
+.. section: Core and Builtins
+
+Fix parser and AST: fill lineno and col_offset of "arg" node when compiling
+AST from Python objects.
+
+..
+
+.. bpo: 24726
+.. date: 9193
+.. nonce: AHk4v2
+.. section: Core and Builtins
+
+Fixed a crash and leaking NULL in repr() of OrderedDict that was mutated by
+direct calls of dict methods.
+
+..
+
+.. bpo: 25449
+.. date: 9192
+.. nonce: VqTOFi
+.. section: Core and Builtins
+
+Iterating OrderedDict with keys with unstable hash now raises KeyError in C
+implementations as well as in Python implementation.
+
+..
+
+.. bpo: 25395
+.. date: 9191
+.. nonce: htkE3W
+.. section: Core and Builtins
+
+Fixed crash when highly nested OrderedDict structures were garbage
+collected.
+
+..
+
+.. bpo: 25401
+.. date: 9190
+.. nonce: ofrAtd
+.. section: Core and Builtins
+
+Optimize bytes.fromhex() and bytearray.fromhex(): they are now between 2x
+and 3.5x faster.
+
+..
+
+.. bpo: 25399
+.. date: 9189
+.. nonce: dNKIhY
+.. section: Core and Builtins
+
+Optimize bytearray % args using the new private _PyBytesWriter API.
+Formatting is now between 2.5 and 5 times faster.
+
+..
+
+.. bpo: 25274
+.. date: 9188
+.. nonce: QCGvAF
+.. section: Core and Builtins
+
+sys.setrecursionlimit() now raises a RecursionError if the new recursion
+limit is too low depending at the current recursion depth. Modify also the
+"lower-water mark" formula to make it monotonic. This mark is used to decide
+when the overflowed flag of the thread state is reset.
+
+..
+
+.. bpo: 24402
+.. date: 9187
+.. nonce: MAgi3X
+.. section: Core and Builtins
+
+Fix input() to prompt to the redirected stdout when sys.stdout.fileno()
+fails.
+
+..
+
+.. bpo: 25349
+.. date: 9186
+.. nonce: 7lBgJ8
+.. section: Core and Builtins
+
+Optimize bytes % args using the new private _PyBytesWriter API. Formatting
+is now up to 2 times faster.
+
+..
+
+.. bpo: 24806
+.. date: 9185
+.. nonce: Nb0znT
+.. section: Core and Builtins
+
+Prevent builtin types that are not allowed to be subclassed from being
+subclassed through multiple inheritance.
+
+..
+
+.. bpo: 25301
+.. date: 9184
+.. nonce: hUTCfr
+.. section: Core and Builtins
+
+The UTF-8 decoder is now up to 15 times as fast for error handlers:
+``ignore``, ``replace`` and ``surrogateescape``.
+
+..
+
+.. bpo: 24848
+.. date: 9183
+.. nonce: HlUSuy
+.. section: Core and Builtins
+
+Fixed a number of bugs in UTF-7 decoding of misformed data.
+
+..
+
+.. bpo: 25267
+.. date: 9182
+.. nonce: SW8Gs6
+.. section: Core and Builtins
+
+The UTF-8 encoder is now up to 75 times as fast for error handlers:
+``ignore``, ``replace``, ``surrogateescape``, ``surrogatepass``. Patch
+co-written with Serhiy Storchaka.
+
+..
+
+.. bpo: 25280
+.. date: 9181
+.. nonce: ivTMwd
+.. section: Core and Builtins
+
+Import trace messages emitted in verbose (-v) mode are no longer formatted
+twice.
+
+..
+
+.. bpo: 25227
+.. date: 9180
+.. nonce: 19v5rp
+.. section: Core and Builtins
+
+Optimize ASCII and latin1 encoders with the ``surrogateescape`` error
+handler: the encoders are now up to 3 times as fast. Initial patch written
+by Serhiy Storchaka.
+
+..
+
+.. bpo: 25003
+.. date: 9179
+.. nonce: _ban92
+.. section: Core and Builtins
+
+On Solaris 11.3 or newer, os.urandom() now uses the getrandom() function
+instead of the getentropy() function. The getentropy() function is blocking
+to generate very good quality entropy, os.urandom() doesn't need such
+high-quality entropy.
+
+..
+
+.. bpo: 9232
+.. date: 9178
+.. nonce: pjsmWw
+.. section: Core and Builtins
+
+Modify Python's grammar to allow trailing commas in the argument list of a
+function declaration. For example, "def f(\*, a = 3,): pass" is now legal.
+Patch from Mark Dickinson.
+
+..
+
+.. bpo: 24965
+.. date: 9177
+.. nonce: wfyxbB
+.. section: Core and Builtins
+
+Implement :pep:`498` "Literal String Interpolation". This allows you to embed
+expressions inside f-strings, which are converted to normal strings at run
+time. Given x=3, then f'value={x}' == 'value=3'. Patch by Eric V. Smith.
+
+..
+
+.. bpo: 26478
+.. date: 9176
+.. nonce: n0dB8e
+.. section: Core and Builtins
+
+Fix semantic bugs when using binary operators with dictionary views and
+tuples.
+
+..
+
+.. bpo: 26171
+.. date: 9175
+.. nonce: 8SaQEa
+.. section: Core and Builtins
+
+Fix possible integer overflow and heap corruption in zipimporter.get_data().
+
+..
+
+.. bpo: 25660
+.. date: 9174
+.. nonce: 93DzBo
+.. section: Core and Builtins
+
+Fix TAB key behaviour in REPL with readline.
+
+..
+
+.. bpo: 26288
+.. date: 9173
+.. nonce: f67RLk
+.. section: Core and Builtins
+
+Optimize PyLong_AsDouble.
+
+..
+
+.. bpo: 26289
+.. date: 9172
+.. nonce: uG9ozG
+.. section: Core and Builtins
+
+Optimize floor and modulo division for single-digit longs. Microbenchmarks
+show 2-2.5x improvement. Built-in 'divmod' function is now also ~10%
+faster. (See also: bpo-26315)
+
+..
+
+.. bpo: 25887
+.. date: 9171
+.. nonce: PtVIX7
+.. section: Core and Builtins
+
+Raise a RuntimeError when a coroutine object is awaited more than once.
+
+..
+
+.. bpo: 27057
+.. date: 9170
+.. nonce: YzTA_Q
+.. section: Library
+
+Fix os.set_inheritable() on Android, ioctl() is blocked by SELinux and fails
+with EACCESS. The function now falls back to fcntl(). Patch written by
+Michał Bednarski.
+
+..
+
+.. bpo: 27014
+.. date: 9169
+.. nonce: ui7Khn
+.. section: Library
+
+Fix infinite recursion using typing.py. Thanks to Kalle Tuure!
+
+..
+
+.. bpo: 27031
+.. date: 9168
+.. nonce: FtvDPs
+.. section: Library
+
+Removed dummy methods in Tkinter widget classes: tk_menuBar() and
+tk_bindForTraversal().
+
+..
+
+.. bpo: 14132
+.. date: 9167
+.. nonce: 5wR9MN
+.. section: Library
+
+Fix urllib.request redirect handling when the target only has a query
+string. Original fix by Ján Janech.
+
+..
+
+.. bpo: 17214
+.. date: 9166
+.. nonce: lUbZOV
+.. section: Library
+
+The "urllib.request" module now percent-encodes non-ASCII bytes found in
+redirect target URLs. Some servers send Location header fields with
+non-ASCII bytes, but "http.client" requires the request target to be
+ASCII-encodable, otherwise a UnicodeEncodeError is raised. Based on patch by
+Christian Heimes.
+
+..
+
+.. bpo: 27033
+.. date: 9165
+.. nonce: o4XIPr
+.. section: Library
+
+The default value of the decode_data parameter for smtpd.SMTPChannel and
+smtpd.SMTPServer constructors is changed to False.
+
+..
+
+.. bpo: 27034
+.. date: 9164
+.. nonce: ptzz_S
+.. section: Library
+
+Removed deprecated class asynchat.fifo.
+
+..
+
+.. bpo: 26870
+.. date: 9163
+.. nonce: 5tCUlp
+.. section: Library
+
+Added readline.set_auto_history(), which can stop entries being
+automatically added to the history list. Based on patch by Tyler Crompton.
+
+..
+
+.. bpo: 26039
+.. date: 9162
+.. nonce: JnXjiE
+.. section: Library
+
+zipfile.ZipFile.open() can now be used to write data into a ZIP file, as
+well as for extracting data. Patch by Thomas Kluyver.
+
+..
+
+.. bpo: 26892
+.. date: 9161
+.. nonce: XIXb0h
+.. section: Library
+
+Honor debuglevel flag in urllib.request.HTTPHandler. Patch contributed by
+Chi Hsuan Yen.
+
+..
+
+.. bpo: 22274
+.. date: 9160
+.. nonce: 0RHDMN
+.. section: Library
+
+In the subprocess module, allow stderr to be redirected to stdout even when
+stdout is not redirected. Patch by Akira Li.
+
+..
+
+.. bpo: 26807
+.. date: 9159
+.. nonce: LXSPP6
+.. section: Library
+
+mock_open 'files' no longer error on readline at end of file. Patch from
+Yolanda Robla.
+
+..
+
+.. bpo: 25745
+.. date: 9158
+.. nonce: -n8acU
+.. section: Library
+
+Fixed leaking a userptr in curses panel destructor.
+
+..
+
+.. bpo: 26977
+.. date: 9157
+.. nonce: 5G4HtL
+.. section: Library
+
+Removed unnecessary, and ignored, call to sum of squares helper in
+statistics.pvariance.
+
+..
+
+.. bpo: 26002
+.. date: 9156
+.. nonce: bVD4pW
+.. section: Library
+
+Use bisect in statistics.median instead of a linear search. Patch by Upendra
+Kuma.
+
+..
+
+.. bpo: 25974
+.. date: 9155
+.. nonce: cpOy5R
+.. section: Library
+
+Make use of new Decimal.as_integer_ratio() method in statistics module.
+Patch by Stefan Krah.
+
+..
+
+.. bpo: 26996
+.. date: 9154
+.. nonce: LR__VD
+.. section: Library
+
+Add secrets module as described in :pep:`506`.
+
+..
+
+.. bpo: 26881
+.. date: 9153
+.. nonce: mdiq_L
+.. section: Library
+
+The modulefinder module now supports extended opcode arguments.
+
+..
+
+.. bpo: 23815
+.. date: 9152
+.. nonce: _krNe8
+.. section: Library
+
+Fixed crashes related to directly created instances of types in _tkinter and
+curses.panel modules.
+
+..
+
+.. bpo: 17765
+.. date: 9151
+.. nonce: hiSVS1
+.. section: Library
+
+weakref.ref() no longer silently ignores keyword arguments. Patch by Georg
+Brandl.
+
+..
+
+.. bpo: 26873
+.. date: 9150
+.. nonce: cYXRcH
+.. section: Library
+
+xmlrpc now raises ResponseError on unsupported type tags instead of silently
+return incorrect result.
+
+..
+
+.. bpo: 26915
+.. date: 9149
+.. nonce: GoQKUL
+.. section: Library
+
+The __contains__ methods in the collections ABCs now check for identity
+before checking equality. This better matches the behavior of the concrete
+classes, allows sensible handling of NaNs, and makes it easier to reason
+about container invariants.
+
+..
+
+.. bpo: 26711
+.. date: 9148
+.. nonce: Eu85Qw
+.. section: Library
+
+Fixed the comparison of plistlib.Data with other types.
+
+..
+
+.. bpo: 24114
+.. date: 9147
+.. nonce: RMRMtM
+.. section: Library
+
+Fix an uninitialized variable in `ctypes.util`.
+The bug only occurs on SunOS when the ctypes implementation searches for the
+`crle` program. Patch by Xiang Zhang. Tested on SunOS by Kees Bos.
+
+..
+
+.. bpo: 26864
+.. date: 9146
+.. nonce: 1KgGds
+.. section: Library
+
+In urllib.request, change the proxy bypass host checking against no_proxy to
+be case-insensitive, and to not match unrelated host names that happen to
+have a bypassed hostname as a suffix. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 24902
+.. date: 9145
+.. nonce: bwWpLj
+.. section: Library
+
+Print server URL on http.server startup. Initial patch by Felix Kaiser.
+
+..
+
+.. bpo: 25788
+.. date: 9144
+.. nonce: 9weIV5
+.. section: Library
+
+fileinput.hook_encoded() now supports an "errors" argument for passing to
+open. Original patch by Joseph Hackman.
+
+..
+
+.. bpo: 26634
+.. date: 9143
+.. nonce: FZvsSb
+.. section: Library
+
+recursive_repr() now sets __qualname__ of wrapper. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 26804
+.. date: 9142
+.. nonce: 9Orp-G
+.. section: Library
+
+urllib.request will prefer lower_case proxy environment variables over
+UPPER_CASE or Mixed_Case ones. Patch contributed by Hans-Peter Jansen.
+
+..
+
+.. bpo: 26837
+.. date: 9141
+.. nonce: 2FXGsD
+.. section: Library
+
+assertSequenceEqual() now correctly outputs non-stringified differing items
+(like bytes in the -b mode). This affects assertListEqual() and
+assertTupleEqual().
+
+..
+
+.. bpo: 26041
+.. date: 9140
+.. nonce: bVem-p
+.. section: Library
+
+Remove "will be removed in Python 3.7" from deprecation messages of
+platform.dist() and platform.linux_distribution(). Patch by Kumaripaba
+Miyurusara Athukorala.
+
+..
+
+.. bpo: 26822
+.. date: 9139
+.. nonce: rYSL4W
+.. section: Library
+
+itemgetter, attrgetter and methodcaller objects no longer silently ignore
+keyword arguments.
+
+..
+
+.. bpo: 26733
+.. date: 9138
+.. nonce: YxaJmL
+.. section: Library
+
+Disassembling a class now disassembles class and static methods. Patch by
+Xiang Zhang.
+
+..
+
+.. bpo: 26801
+.. date: 9137
+.. nonce: TQGY-7
+.. section: Library
+
+Fix error handling in :func:`shutil.get_terminal_size`, catch
+:exc:`AttributeError` instead of :exc:`NameError`. Patch written by Emanuel
+Barry.
+
+..
+
+.. bpo: 24838
+.. date: 9136
+.. nonce: 3Pfx8T
+.. section: Library
+
+tarfile's ustar and gnu formats now correctly calculate name and link field
+limits for multibyte character encodings like utf-8.
+
+..
+
+.. bpo: 26717
+.. date: 9134
+.. nonce: jngTdu
+.. section: Library
+
+Stop encoding Latin-1-ized WSGI paths with UTF-8. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 26782
+.. date: 9133
+.. nonce: JWLPrH
+.. section: Library
+
+Add STARTUPINFO to subprocess.__all__ on Windows.
+
+..
+
+.. bpo: 26404
+.. date: 9132
+.. nonce: hXw7Bs
+.. section: Library
+
+Add context manager to socketserver. Patch by Aviv Palivoda.
+
+..
+
+.. bpo: 26735
+.. date: 9131
+.. nonce: riSl3b
+.. section: Library
+
+Fix :func:`os.urandom` on Solaris 11.3 and newer when reading more than
+1,024 bytes: call ``getrandom()`` multiple times with a limit of 1024 bytes
+per call.
+
+..
+
+.. bpo: 26585
+.. date: 9130
+.. nonce: kfb749
+.. section: Library
+
+Eliminate http.server._quote_html() and use html.escape(quote=False). Patch
+by Xiang Zhang.
+
+..
+
+.. bpo: 26685
+.. date: 9129
+.. nonce: sI_1Ff
+.. section: Library
+
+Raise OSError if closing a socket fails.
+
+..
+
+.. bpo: 16329
+.. date: 9128
+.. nonce: nuXD8W
+.. section: Library
+
+Add .webm to mimetypes.types_map. Patch by Giampaolo Rodola'.
+
+..
+
+.. bpo: 13952
+.. date: 9127
+.. nonce: SOoTVE
+.. section: Library
+
+Add .csv to mimetypes.types_map. Patch by Geoff Wilson.
+
+..
+
+.. bpo: 26587
+.. date: 9126
+.. nonce: Qo-B6C
+.. section: Library
+
+the site module now allows .pth files to specify files to be added to
+sys.path (e.g. zip files).
+
+..
+
+.. bpo: 25609
+.. date: 9125
+.. nonce: t1ydQM
+.. section: Library
+
+Introduce contextlib.AbstractContextManager and typing.ContextManager.
+
+..
+
+.. bpo: 26709
+.. date: 9124
+.. nonce: luOPbP
+.. section: Library
+
+Fixed Y2038 problem in loading binary PLists.
+
+..
+
+.. bpo: 23735
+.. date: 9123
+.. nonce: Y5oQ9r
+.. section: Library
+
+Handle terminal resizing with Readline 6.3+ by installing our own SIGWINCH
+handler. Patch by Eric Price.
+
+..
+
+.. bpo: 25951
+.. date: 9122
+.. nonce: 1CUASJ
+.. section: Library
+
+Change SSLSocket.sendall() to return None, as explicitly documented for
+plain socket objects. Patch by Aviv Palivoda.
+
+..
+
+.. bpo: 26586
+.. date: 9121
+.. nonce: V5pZNa
+.. section: Library
+
+In http.server, respond with "413 Request header fields too large" if there
+are too many header fields to parse, rather than killing the connection and
+raising an unhandled exception. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 26676
+.. date: 9120
+.. nonce: zLRFed
+.. section: Library
+
+Added missing XMLPullParser to ElementTree.__all__.
+
+..
+
+.. bpo: 22854
+.. date: 9119
+.. nonce: K3rMEH
+.. section: Library
+
+Change BufferedReader.writable() and BufferedWriter.readable() to always
+return False.
+
+..
+
+.. bpo: 26492
+.. date: 9118
+.. nonce: YN18iz
+.. section: Library
+
+Exhausted iterator of array.array now conforms with the behavior of
+iterators of other mutable sequences: it lefts exhausted even if iterated
+array is extended.
+
+..
+
+.. bpo: 26641
+.. date: 9117
+.. nonce: 1ICQz0
+.. section: Library
+
+doctest.DocFileTest and doctest.testfile() now support packages (module
+splitted into multiple directories) for the package parameter.
+
+..
+
+.. bpo: 25195
+.. date: 9116
+.. nonce: EOc4Po
+.. section: Library
+
+Fix a regression in mock.MagicMock. _Call is a subclass of tuple (changeset
+3603bae63c13 only works for classes) so we need to implement __ne__
+ourselves. Patch by Andrew Plummer.
+
+..
+
+.. bpo: 26644
+.. date: 9115
+.. nonce: 7tt1tk
+.. section: Library
+
+Raise ValueError rather than SystemError when a negative length is passed to
+SSLSocket.recv() or read().
+
+..
+
+.. bpo: 23804
+.. date: 9114
+.. nonce: PP63Ff
+.. section: Library
+
+Fix SSL recv(0) and read(0) methods to return zero bytes instead of up to
+1024.
+
+..
+
+.. bpo: 26616
+.. date: 9113
+.. nonce: v3QwdD
+.. section: Library
+
+Fixed a bug in datetime.astimezone() method.
+
+..
+
+.. bpo: 26637
+.. date: 9112
+.. nonce: ttiUf7
+.. section: Library
+
+The :mod:`importlib` module now emits an :exc:`ImportError` rather than a
+:exc:`TypeError` if :func:`__import__` is tried during the Python shutdown
+process but :data:`sys.path` is already cleared (set to ``None``).
+
+..
+
+.. bpo: 21925
+.. date: 9111
+.. nonce: xFz-hR
+.. section: Library
+
+:func:`warnings.formatwarning` now catches exceptions when calling
+:func:`linecache.getline` and :func:`tracemalloc.get_object_traceback` to be
+able to log :exc:`ResourceWarning` emitted late during the Python shutdown
+process.
+
+..
+
+.. bpo: 23848
+.. date: 9110
+.. nonce: RkKqPi
+.. section: Library
+
+On Windows, faulthandler.enable() now also installs an exception handler to
+dump the traceback of all Python threads on any Windows exception, not only
+on UNIX signals (SIGSEGV, SIGFPE, SIGABRT).
+
+..
+
+.. bpo: 26530
+.. date: 9109
+.. nonce: RWN1jR
+.. section: Library
+
+Add C functions :c:func:`_PyTraceMalloc_Track` and
+:c:func:`_PyTraceMalloc_Untrack` to track memory blocks using the
+:mod:`tracemalloc` module. Add :c:func:`_PyTraceMalloc_GetTraceback` to get
+the traceback of an object.
+
+..
+
+.. bpo: 26588
+.. date: 9108
+.. nonce: uen0XP
+.. section: Library
+
+The _tracemalloc now supports tracing memory allocations of multiple address
+spaces (domains).
+
+..
+
+.. bpo: 24266
+.. date: 9107
+.. nonce: YZgVyM
+.. section: Library
+
+Ctrl+C during Readline history search now cancels the search mode when
+compiled with Readline 7.
+
+..
+
+.. bpo: 26590
+.. date: 9106
+.. nonce: qEy91x
+.. section: Library
+
+Implement a safe finalizer for the _socket.socket type. It now releases the
+GIL to close the socket.
+
+..
+
+.. bpo: 18787
+.. date: 9105
+.. nonce: rWyzgA
+.. section: Library
+
+spwd.getspnam() now raises a PermissionError if the user doesn't have
+privileges.
+
+..
+
+.. bpo: 26560
+.. date: 9104
+.. nonce: A4WXNz
+.. section: Library
+
+Avoid potential ValueError in BaseHandler.start_response. Initial patch by
+Peter Inglesby.
+
+..
+
+.. bpo: 26567
+.. date: 9103
+.. nonce: kcC99B
+.. section: Library
+
+Add a new function :c:func:`PyErr_ResourceWarning` function to pass the
+destroyed object. Add a *source* attribute to
+:class:`warnings.WarningMessage`. Add warnings._showwarnmsg() which uses
+tracemalloc to get the traceback where source object was allocated.
+
+..
+
+.. bpo: 26569
+.. date: 9101
+.. nonce: EX8vF1
+.. section: Library
+
+Fix :func:`pyclbr.readmodule` and :func:`pyclbr.readmodule_ex` to support
+importing packages.
+
+..
+
+.. bpo: 26499
+.. date: 9100
+.. nonce: NP08PI
+.. section: Library
+
+Account for remaining Content-Length in HTTPResponse.readline() and read1().
+Based on patch by Silent Ghost. Also document that HTTPResponse now supports
+these methods.
+
+..
+
+.. bpo: 25320
+.. date: 9099
+.. nonce: V96LIy
+.. section: Library
+
+Handle sockets in directories unittest discovery is scanning. Patch from
+Victor van den Elzen.
+
+..
+
+.. bpo: 16181
+.. date: 9098
+.. nonce: P7lLvo
+.. section: Library
+
+cookiejar.http2time() now returns None if year is higher than
+datetime.MAXYEAR.
+
+..
+
+.. bpo: 26513
+.. date: 9097
+.. nonce: HoPepy
+.. section: Library
+
+Fixes platform module detection of Windows Server
+
+..
+
+.. bpo: 23718
+.. date: 9096
+.. nonce: AMPC0o
+.. section: Library
+
+Fixed parsing time in week 0 before Jan 1. Original patch by Tamás Bence
+Gedai.
+
+..
+
+.. bpo: 26323
+.. date: 9095
+.. nonce: KkZqEj
+.. section: Library
+
+Add Mock.assert_called() and Mock.assert_called_once() methods to
+unittest.mock. Patch written by Amit Saha.
+
+..
+
+.. bpo: 20589
+.. date: 9094
+.. nonce: NsQ_I1
+.. section: Library
+
+Invoking Path.owner() and Path.group() on Windows now raise
+NotImplementedError instead of ImportError.
+
+..
+
+.. bpo: 26177
+.. date: 9093
+.. nonce: HlSWer
+.. section: Library
+
+Fixed the keys() method for Canvas and Scrollbar widgets.
+
+..
+
+.. bpo: 15068
+.. date: 9092
+.. nonce: xokEVC
+.. section: Library
+
+Got rid of excessive buffering in fileinput. The bufsize parameter is now
+deprecated and ignored.
+
+..
+
+.. bpo: 19475
+.. date: 9091
+.. nonce: MH2HH9
+.. section: Library
+
+Added an optional argument timespec to the datetime isoformat() method to
+choose the precision of the time component.
+
+..
+
+.. bpo: 2202
+.. date: 9090
+.. nonce: dk9sd0
+.. section: Library
+
+Fix UnboundLocalError in AbstractDigestAuthHandler.get_algorithm_impls.
+Initial patch by Mathieu Dupuy.
+
+..
+
+.. bpo: 26167
+.. date: 9089
+.. nonce: 3F-d12
+.. section: Library
+
+Minimized overhead in copy.copy() and copy.deepcopy(). Optimized copying and
+deepcopying bytearrays, NotImplemented, slices, short lists, tuples, dicts,
+sets.
+
+..
+
+.. bpo: 25718
+.. date: 9088
+.. nonce: 4EjZyv
+.. section: Library
+
+Fixed pickling and copying the accumulate() iterator with total is None.
+
+..
+
+.. bpo: 26475
+.. date: 9087
+.. nonce: JXVccY
+.. section: Library
+
+Fixed debugging output for regular expressions with the (?x) flag.
+
+..
+
+.. bpo: 26482
+.. date: 9086
+.. nonce: d635gW
+.. section: Library
+
+Allowed pickling recursive dequeues.
+
+..
+
+.. bpo: 26335
+.. date: 9085
+.. nonce: iXw5Yb
+.. section: Library
+
+Make mmap.write() return the number of bytes written like other write
+methods. Patch by Jakub Stasiak.
+
+..
+
+.. bpo: 26457
+.. date: 9084
+.. nonce: Xe6Clh
+.. section: Library
+
+Fixed the subnets() methods in IP network classes for the case when
+resulting prefix length is equal to maximal prefix length. Based on patch by
+Xiang Zhang.
+
+..
+
+.. bpo: 26385
+.. date: 9083
+.. nonce: 50bDXm
+.. section: Library
+
+Remove the file if the internal open() call in NamedTemporaryFile() fails.
+Patch by Silent Ghost.
+
+..
+
+.. bpo: 26402
+.. date: 9082
+.. nonce: k7DVuU
+.. section: Library
+
+Fix XML-RPC client to retry when the server shuts down a persistent
+connection. This was a regression related to the new
+http.client.RemoteDisconnected exception in 3.5.0a4.
+
+..
+
+.. bpo: 25913
+.. date: 9081
+.. nonce: 5flb95
+.. section: Library
+
+Leading ``<~`` is optional now in base64.a85decode() with adobe=True. Patch
+by Swati Jaiswal.
+
+..
+
+.. bpo: 26186
+.. date: 9080
+.. nonce: R9rfiL
+.. section: Library
+
+Remove an invalid type check in importlib.util.LazyLoader.
+
+..
+
+.. bpo: 26367
+.. date: 9079
+.. nonce: Qct-9S
+.. section: Library
+
+importlib.__import__() raises ImportError like builtins.__import__() when
+``level`` is specified but without an accompanying package specified.
+
+..
+
+.. bpo: 26309
+.. date: 9078
+.. nonce: ubEeiz
+.. section: Library
+
+In the "socketserver" module, shut down the request (closing the connected
+socket) when verify_request() returns false. Patch by Aviv Palivoda.
+
+..
+
+.. bpo: 23430
+.. date: 9077
+.. nonce: s_mLiA
+.. section: Library
+
+Change the socketserver module to only catch exceptions raised from a
+request handler that are derived from Exception (instead of BaseException).
+Therefore SystemExit and KeyboardInterrupt no longer trigger the
+handle_error() method, and will now to stop a single-threaded server.
+
+..
+
+.. bpo: 25995
+.. date: 9075
+.. nonce: NfcimP
+.. section: Library
+
+os.walk() no longer uses FDs proportional to the tree depth.
+
+..
+
+.. bpo: 25994
+.. date: 9074
+.. nonce: ga9rT-
+.. section: Library
+
+Added the close() method and the support of the context manager protocol for
+the os.scandir() iterator.
+
+..
+
+.. bpo: 23992
+.. date: 9073
+.. nonce: O0Hhvc
+.. section: Library
+
+multiprocessing: make MapResult not fail-fast upon exception.
+
+..
+
+.. bpo: 26243
+.. date: 9072
+.. nonce: 41WSpF
+.. section: Library
+
+Support keyword arguments to zlib.compress(). Patch by Aviv Palivoda.
+
+..
+
+.. bpo: 26117
+.. date: 9071
+.. nonce: ne6p11
+.. section: Library
+
+The os.scandir() iterator now closes file descriptor not only when the
+iteration is finished, but when it was failed with error.
+
+..
+
+.. bpo: 25949
+.. date: 9070
+.. nonce: -Lh9vz
+.. section: Library
+
+__dict__ for an OrderedDict instance is now created only when needed.
+
+..
+
+.. bpo: 25911
+.. date: 9069
+.. nonce: d4Zadh
+.. section: Library
+
+Restored support of bytes paths in os.walk() on Windows.
+
+..
+
+.. bpo: 26045
+.. date: 9068
+.. nonce: WmzUrX
+.. section: Library
+
+Add UTF-8 suggestion to error message when posting a non-Latin-1 string with
+http.client.
+
+..
+
+.. bpo: 26039
+.. date: 9067
+.. nonce: a5Bxm4
+.. section: Library
+
+Added zipfile.ZipInfo.from_file() and zipinfo.ZipInfo.is_dir(). Patch by
+Thomas Kluyver.
+
+..
+
+.. bpo: 12923
+.. date: 9066
+.. nonce: HPAu-B
+.. section: Library
+
+Reset FancyURLopener's redirect counter even if there is an exception.
+Based on patches by Brian Brazil and Daniel Rocco.
+
+..
+
+.. bpo: 25945
+.. date: 9065
+.. nonce: guNgNM
+.. section: Library
+
+Fixed a crash when unpickle the functools.partial object with wrong state.
+Fixed a leak in failed functools.partial constructor. "args" and "keywords"
+attributes of functools.partial have now always types tuple and dict
+correspondingly.
+
+..
+
+.. bpo: 26202
+.. date: 9064
+.. nonce: LPIXLg
+.. section: Library
+
+copy.deepcopy() now correctly copies range() objects with non-atomic
+attributes.
+
+..
+
+.. bpo: 23076
+.. date: 9063
+.. nonce: 8rphoP
+.. section: Library
+
+Path.glob() now raises a ValueError if it's called with an invalid pattern.
+Patch by Thomas Nyberg.
+
+..
+
+.. bpo: 19883
+.. date: 9062
+.. nonce: z9TsO6
+.. section: Library
+
+Fixed possible integer overflows in zipimport.
+
+..
+
+.. bpo: 26227
+.. date: 9061
+.. nonce: Fe6oiB
+.. section: Library
+
+On Windows, getnameinfo(), gethostbyaddr() and gethostbyname_ex() functions
+of the socket module now decode the hostname from the ANSI code page rather
+than UTF-8.
+
+..
+
+.. bpo: 26099
+.. date: 9060
+.. nonce: CH5jer
+.. section: Library
+
+The site module now writes an error into stderr if sitecustomize module can
+be imported but executing the module raise an ImportError. Same change for
+usercustomize.
+
+..
+
+.. bpo: 26147
+.. date: 9059
+.. nonce: i-Jc01
+.. section: Library
+
+xmlrpc now works with strings not encodable with used non-UTF-8 encoding.
+
+..
+
+.. bpo: 25935
+.. date: 9058
+.. nonce: cyni91
+.. section: Library
+
+Garbage collector now breaks reference loops with OrderedDict.
+
+..
+
+.. bpo: 16620
+.. date: 9057
+.. nonce: rxpn_Y
+.. section: Library
+
+Fixed AttributeError in msilib.Directory.glob().
+
+..
+
+.. bpo: 26013
+.. date: 9056
+.. nonce: 93RKNz
+.. section: Library
+
+Added compatibility with broken protocol 2 pickles created in old Python 3
+versions (3.4.3 and lower).
+
+..
+
+.. bpo: 26129
+.. date: 9055
+.. nonce: g4RQZd
+.. section: Library
+
+Deprecated accepting non-integers in grp.getgrgid().
+
+..
+
+.. bpo: 25850
+.. date: 9054
+.. nonce: jwFPxj
+.. section: Library
+
+Use cross-compilation by default for 64-bit Windows.
+
+..
+
+.. bpo: 25822
+.. date: 9053
+.. nonce: 0Eafyi
+.. section: Library
+
+Add docstrings to the fields of urllib.parse results. Patch contributed by
+Swati Jaiswal.
+
+..
+
+.. bpo: 22642
+.. date: 9052
+.. nonce: PEgS9F
+.. section: Library
+
+Convert trace module option parsing mechanism to argparse. Patch contributed
+by SilentGhost.
+
+..
+
+.. bpo: 24705
+.. date: 9051
+.. nonce: IZYwjR
+.. section: Library
+
+Fix sysconfig._parse_makefile not expanding ${} vars appearing before $()
+vars.
+
+..
+
+.. bpo: 26069
+.. date: 9050
+.. nonce: NaF4lN
+.. section: Library
+
+Remove the deprecated apis in the trace module.
+
+..
+
+.. bpo: 22138
+.. date: 9049
+.. nonce: nRNYkc
+.. section: Library
+
+Fix mock.patch behavior when patching descriptors. Restore original values
+after patching. Patch contributed by Sean McCully.
+
+..
+
+.. bpo: 25672
+.. date: 9048
+.. nonce: fw9RJP
+.. section: Library
+
+In the ssl module, enable the SSL_MODE_RELEASE_BUFFERS mode option if it is
+safe to do so.
+
+..
+
+.. bpo: 26012
+.. date: 9047
+.. nonce: IFSXNm
+.. section: Library
+
+Don't traverse into symlinks for ``**`` pattern in pathlib.Path.[r]glob().
+
+..
+
+.. bpo: 24120
+.. date: 9046
+.. nonce: Yiwa0h
+.. section: Library
+
+Ignore PermissionError when traversing a tree with pathlib.Path.[r]glob().
+Patch by Ulrich Petri.
+
+..
+
+.. bpo: 21815
+.. date: 9045
+.. nonce: h7-UY8
+.. section: Library
+
+Accept ] characters in the data portion of imap responses, in order to
+handle the flags with square brackets accepted and produced by servers such
+as gmail.
+
+..
+
+.. bpo: 25447
+.. date: 9044
+.. nonce: -4m4xO
+.. section: Library
+
+fileinput now uses sys.stdin as-is if it does not have a buffer attribute
+(restores backward compatibility).
+
+..
+
+.. bpo: 25971
+.. date: 9043
+.. nonce: vhMeG0
+.. section: Library
+
+Optimized creating Fractions from floats by 2 times and from Decimals by 3
+times.
+
+..
+
+.. bpo: 25802
+.. date: 9042
+.. nonce: Y2KOnA
+.. section: Library
+
+Document as deprecated the remaining implementations of
+importlib.abc.Loader.load_module().
+
+..
+
+.. bpo: 25928
+.. date: 9041
+.. nonce: JsQfKK
+.. section: Library
+
+Add Decimal.as_integer_ratio().
+
+..
+
+.. bpo: 25447
+.. date: 9040
+.. nonce: ajPRDy
+.. section: Library
+
+Copying the lru_cache() wrapper object now always works, independently from
+the type of the wrapped object (by returning the original object unchanged).
+
+..
+
+.. bpo: 25768
+.. date: 9039
+.. nonce: GDj2ip
+.. section: Library
+
+Have the functions in compileall return booleans instead of ints and add
+proper documentation and tests for the return values.
+
+..
+
+.. bpo: 24103
+.. date: 9038
+.. nonce: WufqrQ
+.. section: Library
+
+Fixed possible use after free in ElementTree.XMLPullParser.
+
+..
+
+.. bpo: 25860
+.. date: 9037
+.. nonce: 0hActb
+.. section: Library
+
+os.fwalk() no longer skips remaining directories when error occurs.
+Original patch by Samson Lee.
+
+..
+
+.. bpo: 25914
+.. date: 9036
+.. nonce: h0V61F
+.. section: Library
+
+Fixed and simplified OrderedDict.__sizeof__.
+
+..
+
+.. bpo: 25869
+.. date: 9035
+.. nonce: eAnRH5
+.. section: Library
+
+Optimized deepcopying ElementTree; it is now 20 times faster.
+
+..
+
+.. bpo: 25873
+.. date: 9034
+.. nonce: L4Fgjm
+.. section: Library
+
+Optimized iterating ElementTree. Iterating elements Element.iter() is now
+40% faster, iterating text Element.itertext() is now up to 2.5 times faster.
+
+..
+
+.. bpo: 25902
+.. date: 9033
+.. nonce: 6t2FmH
+.. section: Library
+
+Fixed various refcount issues in ElementTree iteration.
+
+..
+
+.. bpo: 22227
+.. date: 9032
+.. nonce: 5utM-Q
+.. section: Library
+
+The TarFile iterator is reimplemented using generator. This implementation
+is simpler that using class.
+
+..
+
+.. bpo: 25638
+.. date: 9031
+.. nonce: yitRj4
+.. section: Library
+
+Optimized ElementTree.iterparse(); it is now 2x faster. Optimized
+ElementTree parsing; it is now 10% faster.
+
+..
+
+.. bpo: 25761
+.. date: 9030
+.. nonce: JGgMOP
+.. section: Library
+
+Improved detecting errors in broken pickle data.
+
+..
+
+.. bpo: 25717
+.. date: 9029
+.. nonce: 0_xjaK
+.. section: Library
+
+Restore the previous behaviour of tolerating most fstat() errors when
+opening files. This was a regression in 3.5a1, and stopped anonymous
+temporary files from working in special cases.
+
+..
+
+.. bpo: 24903
+.. date: 9028
+.. nonce: 3LBdzb
+.. section: Library
+
+Fix regression in number of arguments compileall accepts when '-d' is
+specified. The check on the number of arguments has been dropped completely
+as it never worked correctly anyway.
+
+..
+
+.. bpo: 25764
+.. date: 9027
+.. nonce: 7WWG07
+.. section: Library
+
+In the subprocess module, preserve any exception caused by fork() failure
+when preexec_fn is used.
+
+..
+
+.. bpo: 25771
+.. date: 9026
+.. nonce: It-7Qf
+.. section: Library
+
+Tweak the exception message for importlib.util.resolve_name() when 'package'
+isn't specified but necessary.
+
+..
+
+.. bpo: 6478
+.. date: 9025
+.. nonce: -Bi9Hb
+.. section: Library
+
+_strptime's regexp cache now is reset after changing timezone with
+time.tzset().
+
+..
+
+.. bpo: 14285
+.. date: 9024
+.. nonce: UyG8Hj
+.. section: Library
+
+When executing a package with the "python -m package" option, and package
+initialization fails, a proper traceback is now reported. The "runpy"
+module now lets exceptions from package initialization pass back to the
+caller, rather than raising ImportError.
+
+..
+
+.. bpo: 19771
+.. date: 9023
+.. nonce: 5NG-bg
+.. section: Library
+
+Also in runpy and the "-m" option, omit the irrelevant message ". . . is a
+package and cannot be directly executed" if the package could not even be
+initialized (e.g. due to a bad ``*.pyc`` file).
+
+..
+
+.. bpo: 25177
+.. date: 9022
+.. nonce: aNR4Ha
+.. section: Library
+
+Fixed problem with the mean of very small and very large numbers. As a side
+effect, statistics.mean and statistics.variance should be significantly
+faster.
+
+..
+
+.. bpo: 25718
+.. date: 9021
+.. nonce: D9mHZF
+.. section: Library
+
+Fixed copying object with state with boolean value is false.
+
+..
+
+.. bpo: 10131
+.. date: 9020
+.. nonce: a7tptz
+.. section: Library
+
+Fixed deep copying of minidom documents. Based on patch by Marian Ganisin.
+
+..
+
+.. bpo: 7990
+.. date: 9019
+.. nonce: fpvQxH
+.. section: Library
+
+dir() on ElementTree.Element now lists properties: "tag", "text", "tail" and
+"attrib". Original patch by Santoso Wijaya.
+
+..
+
+.. bpo: 25725
+.. date: 9018
+.. nonce: XIKv3R
+.. section: Library
+
+Fixed a reference leak in pickle.loads() when unpickling invalid data
+including tuple instructions.
+
+..
+
+.. bpo: 25663
+.. date: 9017
+.. nonce: Ofwfqa
+.. section: Library
+
+In the Readline completer, avoid listing duplicate global names, and search
+the global namespace before searching builtins.
+
+..
+
+.. bpo: 25688
+.. date: 9016
+.. nonce: 8P1HOv
+.. section: Library
+
+Fixed file leak in ElementTree.iterparse() raising an error.
+
+..
+
+.. bpo: 23914
+.. date: 9015
+.. nonce: 1sEz4J
+.. section: Library
+
+Fixed SystemError raised by unpickler on broken pickle data.
+
+..
+
+.. bpo: 25691
+.. date: 9014
+.. nonce: ZEaapY
+.. section: Library
+
+Fixed crash on deleting ElementTree.Element attributes.
+
+..
+
+.. bpo: 25624
+.. date: 9013
+.. nonce: ed-fM0
+.. section: Library
+
+ZipFile now always writes a ZIP_STORED header for directory entries. Patch
+by Dingyuan Wang.
+
+..
+
+.. bpo: 25626
+.. date: 9012
+.. nonce: TQ3fvb
+.. section: Library
+
+Change three zlib functions to accept sizes that fit in Py_ssize_t, but
+internally cap those sizes to UINT_MAX. This resolves a regression in 3.5
+where GzipFile.read() failed to read chunks larger than 2 or 4 GiB. The
+change affects the zlib.Decompress.decompress() max_length parameter, the
+zlib.decompress() bufsize parameter, and the zlib.Decompress.flush() length
+parameter.
+
+..
+
+.. bpo: 25583
+.. date: 9011
+.. nonce: Gk-cim
+.. section: Library
+
+Avoid incorrect errors raised by os.makedirs(exist_ok=True) when the OS
+gives priority to errors such as EACCES over EEXIST.
+
+..
+
+.. bpo: 25593
+.. date: 9010
+.. nonce: 56uegI
+.. section: Library
+
+Change semantics of EventLoop.stop() in asyncio.
+
+..
+
+.. bpo: 6973
+.. date: 9009
+.. nonce: nl5cHt
+.. section: Library
+
+When we know a subprocess.Popen process has died, do not allow the
+send_signal(), terminate(), or kill() methods to do anything as they could
+potentially signal a different process.
+
+..
+
+.. bpo: 23883
+.. date: 9008
+.. nonce: OQS5sS
+.. section: Library
+
+Added missing APIs to __all__ to match the documented APIs for the following
+modules: calendar, csv, enum, fileinput, ftplib, logging, optparse, tarfile,
+threading and wave. Also added a test.support.check__all__() helper.
+Patches by Jacek Kołodziej, Mauro S. M. Rodrigues and Joel Taddei.
+
+..
+
+.. bpo: 25590
+.. date: 9007
+.. nonce: KPcnfv
+.. section: Library
+
+In the Readline completer, only call getattr() once per attribute. Also
+complete names of attributes such as properties and slots which are listed
+by dir() but not yet created on an instance.
+
+..
+
+.. bpo: 25498
+.. date: 9006
+.. nonce: AvqEBl
+.. section: Library
+
+Fix a crash when garbage-collecting ctypes objects created by wrapping a
+memoryview. This was a regression made in 3.5a1. Based on patch by
+Eryksun.
+
+..
+
+.. bpo: 25584
+.. date: 9005
+.. nonce: 124mYw
+.. section: Library
+
+Added "escape" to the __all__ list in the glob module.
+
+..
+
+.. bpo: 25584
+.. date: 9004
+.. nonce: ZeWX0J
+.. section: Library
+
+Fixed recursive glob() with patterns starting with ``**``.
+
+..
+
+.. bpo: 25446
+.. date: 9003
+.. nonce: k1DByx
+.. section: Library
+
+Fix regression in smtplib's AUTH LOGIN support.
+
+..
+
+.. bpo: 18010
+.. date: 9002
+.. nonce: Azyf1C
+.. section: Library
+
+Fix the pydoc web server's module search function to handle exceptions from
+importing packages.
+
+..
+
+.. bpo: 25554
+.. date: 9001
+.. nonce: UM9MlR
+.. section: Library
+
+Got rid of circular references in regular expression parsing.
+
+..
+
+.. bpo: 18973
+.. date: 9000
+.. nonce: Am9jFL
+.. section: Library
+
+Command-line interface of the calendar module now uses argparse instead of
+optparse.
+
+..
+
+.. bpo: 25510
+.. date: 8999
+.. nonce: 79g7LA
+.. section: Library
+
+fileinput.FileInput.readline() now returns b'' instead of '' at the end if
+the FileInput was opened with binary mode. Patch by Ryosuke Ito.
+
+..
+
+.. bpo: 25503
+.. date: 8998
+.. nonce: Zea0Y7
+.. section: Library
+
+Fixed inspect.getdoc() for inherited docstrings of properties. Original
+patch by John Mark Vandenberg.
+
+..
+
+.. bpo: 25515
+.. date: 8997
+.. nonce: fQsyYG
+.. section: Library
+
+Always use os.urandom as a source of randomness in uuid.uuid4.
+
+..
+
+.. bpo: 21827
+.. date: 8996
+.. nonce: k2oreR
+.. section: Library
+
+Fixed textwrap.dedent() for the case when largest common whitespace is a
+substring of smallest leading whitespace. Based on patch by Robert Li.
+
+..
+
+.. bpo: 25447
+.. date: 8995
+.. nonce: eDYc4t
+.. section: Library
+
+The lru_cache() wrapper objects now can be copied and pickled (by returning
+the original object unchanged).
+
+..
+
+.. bpo: 25390
+.. date: 8994
+.. nonce: 6mSgRq
+.. section: Library
+
+typing: Don't crash on Union[str, Pattern].
+
+..
+
+.. bpo: 25441
+.. date: 8993
+.. nonce: d7zph6
+.. section: Library
+
+asyncio: Raise error from drain() when socket is closed.
+
+..
+
+.. bpo: 25410
+.. date: 8992
+.. nonce: QAs_3B
+.. section: Library
+
+Cleaned up and fixed minor bugs in C implementation of OrderedDict.
+
+..
+
+.. bpo: 25411
+.. date: 8991
+.. nonce: qsJTCb
+.. section: Library
+
+Improved Unicode support in SMTPHandler through better use of the email
+package. Thanks to user simon04 for the patch.
+
+..
+
+.. bpo: 0
+.. date: 8990
+.. nonce: pFHJ0i
+.. section: Library
+
+Move the imp module from a PendingDeprecationWarning to DeprecationWarning.
+
+..
+
+.. bpo: 25407
+.. date: 8989
+.. nonce: ukNt1D
+.. section: Library
+
+Remove mentions of the formatter module being removed in Python 3.6.
+
+..
+
+.. bpo: 25406
+.. date: 8988
+.. nonce: 5MZKU_
+.. section: Library
+
+Fixed a bug in C implementation of OrderedDict.move_to_end() that caused
+segmentation fault or hang in iterating after moving several items to the
+start of ordered dict.
+
+..
+
+.. bpo: 25382
+.. date: 8987
+.. nonce: XQ44yE
+.. section: Library
+
+pickletools.dis() now outputs implicit memo index for the MEMOIZE opcode.
+
+..
+
+.. bpo: 25357
+.. date: 8986
+.. nonce: ebqGy-
+.. section: Library
+
+Add an optional newline parameter to binascii.b2a_base64(). base64.b64encode()
+uses it to avoid a memory copy.
+
+..
+
+.. bpo: 24164
+.. date: 8985
+.. nonce: oi6H3E
+.. section: Library
+
+Objects that need calling ``__new__`` with keyword arguments, can now be
+pickled using pickle protocols older than protocol version 4.
+
+..
+
+.. bpo: 25364
+.. date: 8984
+.. nonce: u_1Wi6
+.. section: Library
+
+zipfile now works in threads disabled builds.
+
+..
+
+.. bpo: 25328
+.. date: 8983
+.. nonce: Rja1Xg
+.. section: Library
+
+smtpd's SMTPChannel now correctly raises a ValueError if both decode_data
+and enable_SMTPUTF8 are set to true.
+
+..
+
+.. bpo: 16099
+.. date: 8982
+.. nonce: _MTt3k
+.. section: Library
+
+RobotFileParser now supports Crawl-delay and Request-rate extensions. Patch
+by Nikolay Bogoychev.
+
+..
+
+.. bpo: 25316
+.. date: 8981
+.. nonce: dHQHWI
+.. section: Library
+
+distutils raises OSError instead of DistutilsPlatformError when MSVC is not
+installed.
+
+..
+
+.. bpo: 25380
+.. date: 8980
+.. nonce: sKZ6-I
+.. section: Library
+
+Fixed protocol for the STACK_GLOBAL opcode in pickletools.opcodes.
+
+..
+
+.. bpo: 23972
+.. date: 8979
+.. nonce: s2g30g
+.. section: Library
+
+Updates asyncio datagram create method allowing reuseport and reuseaddr
+socket options to be set prior to binding the socket. Mirroring the existing
+asyncio create_server method the reuseaddr option for datagram sockets
+defaults to True if the O/S is 'posix' (except if the platform is Cygwin).
+Patch by Chris Laws.
+
+..
+
+.. bpo: 25304
+.. date: 8978
+.. nonce: CsmLyI
+.. section: Library
+
+Add asyncio.run_coroutine_threadsafe(). This lets you submit a coroutine to
+a loop from another thread, returning a concurrent.futures.Future. By
+Vincent Michel.
+
+..
+
+.. bpo: 25232
+.. date: 8977
+.. nonce: KhKjCE
+.. section: Library
+
+Fix CGIRequestHandler to split the query from the URL at the first question
+mark (?) rather than the last. Patch from Xiang Zhang.
+
+..
+
+.. bpo: 24657
+.. date: 8976
+.. nonce: h2Ag7y
+.. section: Library
+
+Prevent CGIRequestHandler from collapsing slashes in the query part of the
+URL as if it were a path. Patch from Xiang Zhang.
+
+..
+
+.. bpo: 25287
+.. date: 8975
+.. nonce: KhzzMW
+.. section: Library
+
+Don't add crypt.METHOD_CRYPT to crypt.methods if it's not supported. Check
+if it is supported, it may not be supported on OpenBSD for example.
+
+..
+
+.. bpo: 23600
+.. date: 8974
+.. nonce: 7J_RD5
+.. section: Library
+
+Default implementation of tzinfo.fromutc() was returning wrong results in
+some cases.
+
+..
+
+.. bpo: 25203
+.. date: 8973
+.. nonce: IgDEbt
+.. section: Library
+
+Failed readline.set_completer_delims() no longer left the module in
+inconsistent state.
+
+..
+
+.. bpo: 25011
+.. date: 8972
+.. nonce: VcaCd6
+.. section: Library
+
+rlcompleter now omits private and special attribute names unless the prefix
+starts with underscores.
+
+..
+
+.. bpo: 25209
+.. date: 8971
+.. nonce: WxKcdJ
+.. section: Library
+
+rlcompleter now can add a space or a colon after completed keyword.
+
+..
+
+.. bpo: 22241
+.. date: 8970
+.. nonce: a-Mtw2
+.. section: Library
+
+timezone.utc name is now plain 'UTC', not 'UTC-00:00'.
+
+..
+
+.. bpo: 23517
+.. date: 8969
+.. nonce: 0ABp8q
+.. section: Library
+
+fromtimestamp() and utcfromtimestamp() methods of datetime.datetime now
+round microseconds to nearest with ties going to nearest even integer
+(ROUND_HALF_EVEN), as round(float), instead of rounding towards -Infinity
+(ROUND_FLOOR).
+
+..
+
+.. bpo: 23552
+.. date: 8968
+.. nonce: I0T-M-
+.. section: Library
+
+Timeit now warns when there is substantial (4x) variance between best and
+worst times. Patch from Serhiy Storchaka.
+
+..
+
+.. bpo: 24633
+.. date: 8967
+.. nonce: 6Unn9B
+.. section: Library
+
+site-packages/README -> README.txt.
+
+..
+
+.. bpo: 24879
+.. date: 8966
+.. nonce: YUzg_z
+.. section: Library
+
+help() and pydoc can now list named tuple fields in the order they were
+defined rather than alphabetically. The ordering is determined by the
+_fields attribute if present.
+
+..
+
+.. bpo: 24874
+.. date: 8965
+.. nonce: luBfgA
+.. section: Library
+
+Improve speed of itertools.cycle() and make its pickle more compact.
+
+..
+
+.. bpo: 0
+.. date: 8964
+.. nonce: mD-_3v
+.. section: Library
+
+Fix crash in itertools.cycle.__setstate__() when the first argument wasn't a
+list.
+
+..
+
+.. bpo: 20059
+.. date: 8963
+.. nonce: SHv0Ji
+.. section: Library
+
+urllib.parse raises ValueError on all invalid ports. Patch by Martin Panter.
+
+..
+
+.. bpo: 24360
+.. date: 8962
+.. nonce: 5RwH-e
+.. section: Library
+
+Improve __repr__ of argparse.Namespace() for invalid identifiers. Patch by
+Matthias Bussonnier.
+
+..
+
+.. bpo: 23426
+.. date: 8961
+.. nonce: PUV-Cx
+.. section: Library
+
+run_setup was broken in distutils. Patch from Alexander Belopolsky.
+
+..
+
+.. bpo: 13938
+.. date: 8960
+.. nonce: e5NSE1
+.. section: Library
+
+2to3 converts StringTypes to a tuple. Patch from Mark Hammond.
+
+..
+
+.. bpo: 2091
+.. date: 8959
+.. nonce: bp56pO
+.. section: Library
+
+open() accepted a 'U' mode string containing '+', but 'U' can only be used
+with 'r'. Patch from Jeff Balogh and John O'Connor.
+
+..
+
+.. bpo: 8585
+.. date: 8958
+.. nonce: 78hPc2
+.. section: Library
+
+improved tests for zipimporter2. Patch from Mark Lawrence.
+
+..
+
+.. bpo: 18622
+.. date: 8957
+.. nonce: i6nCCW
+.. section: Library
+
+unittest.mock.mock_open().reset_mock would recurse infinitely. Patch from
+Nicola Palumbo and Laurent De Buyst.
+
+..
+
+.. bpo: 24426
+.. date: 8956
+.. nonce: yCtQfT
+.. section: Library
+
+Fast searching optimization in regular expressions now works for patterns
+that starts with capturing groups. Fast searching optimization now can't be
+disabled at compile time.
+
+..
+
+.. bpo: 23661
+.. date: 8955
+.. nonce: 5VHJmh
+.. section: Library
+
+unittest.mock side_effects can now be exceptions again. This was a
+regression vs Python 3.4. Patch from Ignacio Rossi
+
+..
+
+.. bpo: 13248
+.. date: 8954
+.. nonce: SA2hvu
+.. section: Library
+
+Remove deprecated inspect.getmoduleinfo function.
+
+..
+
+.. bpo: 25578
+.. date: 8953
+.. nonce: G6S-ft
+.. section: Library
+
+Fix (another) memory leak in SSLSocket.getpeercer().
+
+..
+
+.. bpo: 25530
+.. date: 8952
+.. nonce: hDFkwu
+.. section: Library
+
+Disable the vulnerable SSLv3 protocol by default when creating
+ssl.SSLContext.
+
+..
+
+.. bpo: 25569
+.. date: 8951
+.. nonce: CfvQjK
+.. section: Library
+
+Fix memory leak in SSLSocket.getpeercert().
+
+..
+
+.. bpo: 25471
+.. date: 8950
+.. nonce: T0A02M
+.. section: Library
+
+Sockets returned from accept() shouldn't appear to be nonblocking.
+
+..
+
+.. bpo: 25319
+.. date: 8949
+.. nonce: iyuglv
+.. section: Library
+
+When threading.Event is reinitialized, the underlying condition should use a
+regular lock rather than a recursive lock.
+
+..
+
+.. bpo: 0
+.. date: 8948
+.. nonce: rtZyid
+.. section: Library
+
+Skip getaddrinfo if host is already resolved. Patch by A. Jesse Jiryu Davis.
+
+..
+
+.. bpo: 26050
+.. date: 8947
+.. nonce: sclyvk
+.. section: Library
+
+Add asyncio.StreamReader.readuntil() method. Patch by Марк Коренберг.
+
+..
+
+.. bpo: 25924
+.. date: 8946
+.. nonce: Uxr2vt
+.. section: Library
+
+Avoid unnecessary serialization of getaddrinfo(3) calls on OS X versions
+10.5 or higher. Original patch by A. Jesse Jiryu Davis.
+
+..
+
+.. bpo: 26406
+.. date: 8945
+.. nonce: ihvhF4
+.. section: Library
+
+Avoid unnecessary serialization of getaddrinfo(3) calls on current versions
+of OpenBSD and NetBSD. Patch by A. Jesse Jiryu Davis.
+
+..
+
+.. bpo: 26848
+.. date: 8944
+.. nonce: ChBOpQ
+.. section: Library
+
+Fix asyncio/subprocess.communicate() to handle empty input. Patch by Jack
+O'Connor.
+
+..
+
+.. bpo: 27040
+.. date: 8943
+.. nonce: UASyCC
+.. section: Library
+
+Add loop.get_exception_handler method
+
+..
+
+.. bpo: 27041
+.. date: 8942
+.. nonce: p3893U
+.. section: Library
+
+asyncio: Add loop.create_future method
+
+..
+
+.. bpo: 20640
+.. date: 8941
+.. nonce: PmI-G8
+.. section: IDLE
+
+Add tests for idlelib.configHelpSourceEdit. Patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 0
+.. date: 8940
+.. nonce: _YJfG7
+.. section: IDLE
+
+In the 'IDLE-console differences' section of the IDLE doc, clarify how
+running with IDLE affects sys.modules and the standard streams.
+
+..
+
+.. bpo: 25507
+.. date: 8939
+.. nonce: i8bNpk
+.. section: IDLE
+
+fix incorrect change in IOBinding that prevented printing. Augment IOBinding
+htest to include all major IOBinding functions.
+
+..
+
+.. bpo: 25905
+.. date: 8938
+.. nonce: FzNb3B
+.. section: IDLE
+
+Revert unwanted conversion of ' to ’ RIGHT SINGLE QUOTATION MARK in
+README.txt and open this and NEWS.txt with 'ascii'. Re-encode CREDITS.txt to
+utf-8 and open it with 'utf-8'.
+
+..
+
+.. bpo: 15348
+.. date: 8937
+.. nonce: d1Fg01
+.. section: IDLE
+
+Stop the debugger engine (normally in a user process) before closing the
+debugger window (running in the IDLE process). This prevents the
+RuntimeErrors that were being caught and ignored.
+
+..
+
+.. bpo: 24455
+.. date: 8936
+.. nonce: x6YqtE
+.. section: IDLE
+
+Prevent IDLE from hanging when a) closing the shell while the debugger is
+active (15347); b) closing the debugger with the [X] button (15348); and c)
+activating the debugger when already active (24455). The patch by Mark
+Roseman does this by making two changes. 1. Suspend and resume the
+gui.interaction method with the tcl vwait mechanism intended for this
+purpose (instead of root.mainloop & .quit). 2. In gui.run, allow any
+existing interaction to terminate first.
+
+..
+
+.. bpo: 0
+.. date: 8935
+.. nonce: Yp9LRY
+.. section: IDLE
+
+Change 'The program' to 'Your program' in an IDLE 'kill program?' message to
+make it clearer that the program referred to is the currently running user
+program, not IDLE itself.
+
+..
+
+.. bpo: 24750
+.. date: 8934
+.. nonce: xgsi-K
+.. section: IDLE
+
+Improve the appearance of the IDLE editor window status bar. Patch by Mark
+Roseman.
+
+..
+
+.. bpo: 25313
+.. date: 8933
+.. nonce: xMXHpO
+.. section: IDLE
+
+Change the handling of new built-in text color themes to better address the
+compatibility problem introduced by the addition of IDLE Dark. Consistently
+use the revised idleConf.CurrentTheme everywhere in idlelib.
+
+..
+
+.. bpo: 24782
+.. date: 8932
+.. nonce: RgIPYE
+.. section: IDLE
+
+Extension configuration is now a tab in the IDLE Preferences dialog rather
+than a separate dialog. The former tabs are now a sorted list. Patch by
+Mark Roseman.
+
+..
+
+.. bpo: 22726
+.. date: 8931
+.. nonce: x8T0dA
+.. section: IDLE
+
+Re-activate the config dialog help button with some content about the other
+buttons and the new IDLE Dark theme.
+
+..
+
+.. bpo: 24820
+.. date: 8930
+.. nonce: TFPJhr
+.. section: IDLE
+
+IDLE now has an 'IDLE Dark' built-in text color theme. It is more or less
+IDLE Classic inverted, with a cobalt blue background. Strings, comments,
+keywords, ... are still green, red, orange, ... . To use it with IDLEs
+released before November 2015, hit the 'Save as New Custom Theme' button and
+enter a new name, such as 'Custom Dark'. The custom theme will work with
+any IDLE release, and can be modified.
+
+..
+
+.. bpo: 25224
+.. date: 8929
+.. nonce: 5Llwo4
+.. section: IDLE
+
+README.txt is now an idlelib index for IDLE developers and curious users.
+The previous user content is now in the IDLE doc chapter. 'IDLE' now means
+'Integrated Development and Learning Environment'.
+
+..
+
+.. bpo: 24820
+.. date: 8928
+.. nonce: ZUz9Fn
+.. section: IDLE
+
+Users can now set breakpoint colors in Settings -> Custom Highlighting.
+Original patch by Mark Roseman.
+
+..
+
+.. bpo: 24972
+.. date: 8927
+.. nonce: uc0uNo
+.. section: IDLE
+
+Inactive selection background now matches active selection background, as
+configured by users, on all systems. Found items are now always highlighted
+on Windows. Initial patch by Mark Roseman.
+
+..
+
+.. bpo: 24570
+.. date: 8926
+.. nonce: s3EkNn
+.. section: IDLE
+
+Idle: make calltip and completion boxes appear on Macs affected by a tk
+regression. Initial patch by Mark Roseman.
+
+..
+
+.. bpo: 24988
+.. date: 8925
+.. nonce: tXqq4T
+.. section: IDLE
+
+Idle ScrolledList context menus (used in debugger) now work on Mac Aqua.
+Patch by Mark Roseman.
+
+..
+
+.. bpo: 24801
+.. date: 8924
+.. nonce: -bj_Ou
+.. section: IDLE
+
+Make right-click for context menu work on Mac Aqua. Patch by Mark Roseman.
+
+..
+
+.. bpo: 25173
+.. date: 8923
+.. nonce: EZzrPg
+.. section: IDLE
+
+Associate tkinter messageboxes with a specific widget. For Mac OSX, make
+them a 'sheet'. Patch by Mark Roseman.
+
+..
+
+.. bpo: 25198
+.. date: 8922
+.. nonce: -j_BV7
+.. section: IDLE
+
+Enhance the initial html viewer now used for Idle Help. Properly indent
+fixed-pitch text (patch by Mark Roseman). Give code snippet a very
+Sphinx-like light blueish-gray background. Re-use initial width and height set by
+users for shell and editor. When the Table of Contents (TOC) menu is used,
+put the section header at the top of the screen.
+
+..
+
+.. bpo: 25225
+.. date: 8921
+.. nonce: 9pvdq6
+.. section: IDLE
+
+Condense and rewrite Idle doc section on text colors.
+
+..
+
+.. bpo: 21995
+.. date: 8920
+.. nonce: C5Rmzx
+.. section: IDLE
+
+Explain some differences between IDLE and console Python.
+
+..
+
+.. bpo: 22820
+.. date: 8919
+.. nonce: hix_8X
+.. section: IDLE
+
+Explain need for *print* when running file from Idle editor.
+
+..
+
+.. bpo: 25224
+.. date: 8918
+.. nonce: UVMYQq
+.. section: IDLE
+
+Doc: augment Idle feature list and no-subprocess section.
+
+..
+
+.. bpo: 25219
+.. date: 8917
+.. nonce: 8_9DYg
+.. section: IDLE
+
+Update doc for Idle command line options. Some were missing and notes were
+not correct.
+
+..
+
+.. bpo: 24861
+.. date: 8916
+.. nonce: Ecg2yT
+.. section: IDLE
+
+Most of idlelib is private and subject to change. Use idleib.idle.* to start
+Idle. See idlelib.__init__.__doc__.
+
+..
+
+.. bpo: 25199
+.. date: 8915
+.. nonce: ih7yY3
+.. section: IDLE
+
+Idle: add synchronization comments for future maintainers.
+
+..
+
+.. bpo: 16893
+.. date: 8914
+.. nonce: uIi1oB
+.. section: IDLE
+
+Replace help.txt with help.html for Idle doc display. The new
+idlelib/help.html is rstripped Doc/build/html/library/idle.html. It looks
+better than help.txt and will better document Idle as released. The tkinter
+html viewer that works for this file was written by Rose Roseman. The now
+unused EditorWindow.HelpDialog class and helt.txt file are deprecated.
+
+..
+
+.. bpo: 24199
+.. date: 8913
+.. nonce: VKnZEv
+.. section: IDLE
+
+Deprecate unused idlelib.idlever with possible removal in 3.6.
+
+..
+
+.. bpo: 24790
+.. date: 8912
+.. nonce: hD1hlj
+.. section: IDLE
+
+Remove extraneous code (which also create 2 & 3 conflicts).
+
+..
+
+.. bpo: 26736
+.. date: 8911
+.. nonce: U_Hyqo
+.. section: Documentation
+
+Used HTTPS for external links in the documentation if possible.
+
+..
+
+.. bpo: 6953
+.. date: 8910
+.. nonce: Zk6rno
+.. section: Documentation
+
+Rework the Readline module documentation to group related functions
+together, and add more details such as what underlying Readline functions
+and variables are accessed.
+
+..
+
+.. bpo: 23606
+.. date: 8909
+.. nonce: 9MhIso
+.. section: Documentation
+
+Adds note to ctypes documentation regarding cdll.msvcrt.
+
+..
+
+.. bpo: 24952
+.. date: 8908
+.. nonce: RHhFPE
+.. section: Documentation
+
+Clarify the default size argument of stack_size() in the "threading" and
+"_thread" modules. Patch from Mattip.
+
+..
+
+.. bpo: 26014
+.. date: 8907
+.. nonce: ptdZ_I
+.. section: Documentation
+
+Update 3.x packaging documentation: * "See also" links to the new docs are
+now provided in the legacy pages * links to setuptools documentation have
+been updated
+
+..
+
+.. bpo: 21916
+.. date: 8906
+.. nonce: muwCyp
+.. section: Tests
+
+Added tests for the turtle module. Patch by ingrid, Gregory Loyse and Jelle
+Zijlstra.
+
+..
+
+.. bpo: 26295
+.. date: 8905
+.. nonce: sYBtj5
+.. section: Tests
+
+When using "python3 -m test --testdir=TESTDIR", regrtest doesn't add "test."
+prefix to test module names.
+
+..
+
+.. bpo: 26523
+.. date: 8904
+.. nonce: em_Uzt
+.. section: Tests
+
+The multiprocessing thread pool (multiprocessing.dummy.Pool) was untested.
+
+..
+
+.. bpo: 26015
+.. date: 8903
+.. nonce: p3oWK3
+.. section: Tests
+
+Added new tests for pickling iterators of mutable sequences.
+
+..
+
+.. bpo: 26325
+.. date: 8902
+.. nonce: KOUc82
+.. section: Tests
+
+Added test.support.check_no_resource_warning() to check that no
+ResourceWarning is emitted.
+
+..
+
+.. bpo: 25940
+.. date: 8901
+.. nonce: MvBwSe
+.. section: Tests
+
+Changed test_ssl to use its internal local server more. This avoids relying
+on svn.python.org, which recently changed root certificate.
+
+..
+
+.. bpo: 25616
+.. date: 8900
+.. nonce: Qr-60p
+.. section: Tests
+
+Tests for OrderedDict are extracted from test_collections into separate file
+test_ordered_dict.
+
+..
+
+.. bpo: 25449
+.. date: 8899
+.. nonce: MP6KNs
+.. section: Tests
+
+Added tests for OrderedDict subclasses.
+
+..
+
+.. bpo: 25188
+.. date: 8898
+.. nonce: lnLnIW
+.. section: Tests
+
+Add -P/--pgo to test.regrtest to suppress error output when running the test
+suite for the purposes of a PGO build. Initial patch by Alecsandru Patrascu.
+
+..
+
+.. bpo: 22806
+.. date: 8897
+.. nonce: _QHyyV
+.. section: Tests
+
+Add ``python -m test --list-tests`` command to list tests.
+
+..
+
+.. bpo: 18174
+.. date: 8896
+.. nonce: TzH9d_
+.. section: Tests
+
+``python -m test --huntrleaks ...`` now also checks for leak of file
+descriptors. Patch written by Richard Oudkerk.
+
+..
+
+.. bpo: 25260
+.. date: 8895
+.. nonce: jw3p83
+.. section: Tests
+
+Fix ``python -m test --coverage`` on Windows. Remove the list of ignored
+directories.
+
+..
+
+.. bpo: 0
+.. date: 8894
+.. nonce: X-Bk5l
+.. section: Tests
+
+``PCbuild\rt.bat`` now accepts an unlimited number of arguments to pass
+along to regrtest.py. Previously there was a limit of 9.
+
+..
+
+.. bpo: 26583
+.. date: 8893
+.. nonce: Up7hTl
+.. section: Tests
+
+Skip test_timestamp_overflow in test_import if bytecode files cannot be
+written.
+
+..
+
+.. bpo: 21277
+.. date: 8892
+.. nonce: 7y1j9a
+.. section: Build
+
+Don't try to link _ctypes with a ffi_convenience library.
+
+..
+
+.. bpo: 26884
+.. date: 8891
+.. nonce: O8-azL
+.. section: Build
+
+Fix linking extension modules for cross builds. Patch by Xavier de Gaye.
+
+..
+
+.. bpo: 26932
+.. date: 8890
+.. nonce: 5kzaG9
+.. section: Build
+
+Fixed support of RTLD_* constants defined as enum values, not via macros (in
+particular on Android). Patch by Chi Hsuan Yen.
+
+..
+
+.. bpo: 22359
+.. date: 8889
+.. nonce: HDjM4s
+.. section: Build
+
+Disable the rules for running _freeze_importlib and pgen when
+cross-compiling. The output of these programs is normally saved with the source
+code anyway, and is still regenerated when doing a native build. Patch by
+Xavier de Gaye.
+
+..
+
+.. bpo: 21668
+.. date: 8888
+.. nonce: qWwBui
+.. section: Build
+
+Link audioop, _datetime, _ctypes_test modules to libm, except on Mac OS X.
+Patch written by Chi Hsuan Yen.
+
+..
+
+.. bpo: 25702
+.. date: 8887
+.. nonce: ipxyJs
+.. section: Build
+
+A --with-lto configure option has been added that will enable link time
+optimizations at build time during a make profile-opt. Some compilers and
+toolchains are known to not produce stable code when using LTO, be sure to
+test things thoroughly before relying on it. It can provide a few % speed up
+over profile-opt alone.
+
+..
+
+.. bpo: 26624
+.. date: 8886
+.. nonce: 4fGrTl
+.. section: Build
+
+Adds validation of ucrtbase[d].dll version with warning for old versions.
+
+..
+
+.. bpo: 17603
+.. date: 8885
+.. nonce: 102DA-
+.. section: Build
+
+Avoid error about nonexistent fileblocks.o file by using a lower-level check
+for st_blocks in struct stat.
+
+..
+
+.. bpo: 26079
+.. date: 8884
+.. nonce: mEzW0O
+.. section: Build
+
+Fixing the build output folder for tix-8.4.3.6. Patch by Bjoern Thiel.
+
+..
+
+.. bpo: 26465
+.. date: 8883
+.. nonce: _YR608
+.. section: Build
+
+Update Windows builds to use OpenSSL 1.0.2g.
+
+..
+
+.. bpo: 25348
+.. date: 8882
+.. nonce: FLSPfp
+.. section: Build
+
+Added ``--pgo`` and ``--pgo-job`` arguments to ``PCbuild\build.bat`` for
+building with Profile-Guided Optimization. The old
+``PCbuild\build_pgo.bat`` script is removed.
+
+..
+
+.. bpo: 25827
+.. date: 8881
+.. nonce: yg3DMM
+.. section: Build
+
+Add support for building with ICC to ``configure``, including a new
+``--with-icc`` flag.
+
+..
+
+.. bpo: 25696
+.. date: 8880
+.. nonce: 2R_wIv
+.. section: Build
+
+Fix installation of Python on UNIX with make -j9.
+
+..
+
+.. bpo: 24986
+.. date: 8879
+.. nonce: 1WyXeU
+.. section: Build
+
+It is now possible to build Python on Windows without errors when external
+libraries are not available.
+
+..
+
+.. bpo: 24421
+.. date: 8878
+.. nonce: 2zY7vM
+.. section: Build
+
+Compile Modules/_math.c once, before building extensions. Previously it
+could fail to compile properly if the math and cmath builds were concurrent.
+
+..
+
+.. bpo: 26465
+.. date: 8877
+.. nonce: PkIaV8
+.. section: Build
+
+Update OS X 10.5+ 32-bit-only installer to build and link with OpenSSL
+1.0.2g.
+
+..
+
+.. bpo: 26268
+.. date: 8876
+.. nonce: I3-YLh
+.. section: Build
+
+Update Windows builds to use OpenSSL 1.0.2f.
+
+..
+
+.. bpo: 25136
+.. date: 8875
+.. nonce: Vi-fmO
+.. section: Build
+
+Support Apple Xcode 7's new textual SDK stub libraries.
+
+..
+
+.. bpo: 24324
+.. date: 8874
+.. nonce: m6DZMx
+.. section: Build
+
+Do not enable unreachable code warnings when using gcc as the option does
+not work correctly in older versions of gcc and has been silently removed as
+of gcc-4.5.
+
+..
+
+.. bpo: 27053
+.. date: 8873
+.. nonce: 1IRbae
+.. section: Windows
+
+Updates make_zip.py to correctly generate library ZIP file.
+
+..
+
+.. bpo: 26268
+.. date: 8872
+.. nonce: Z-lJEh
+.. section: Windows
+
+Update the prepare_ssl.py script to handle OpenSSL releases that don't
+include the contents of the include directory (that is, 1.0.2e and later).
+
+..
+
+.. bpo: 26071
+.. date: 8871
+.. nonce: wLxL2l
+.. section: Windows
+
+bdist_wininst created binaries fail to start and find 32bit Python
+
+..
+
+.. bpo: 26073
+.. date: 8870
+.. nonce: XwWgHp
+.. section: Windows
+
+Update the list of magic numbers in launcher
+
+..
+
+.. bpo: 26065
+.. date: 8869
+.. nonce: SkVLJp
+.. section: Windows
+
+Excludes venv from library when generating embeddable distro.
+
+..
+
+.. bpo: 25022
+.. date: 8868
+.. nonce: vAt_zr
+.. section: Windows
+
+Removed very outdated PC/example_nt/ directory.
+
+..
+
+.. bpo: 26799
+.. date: 8867
+.. nonce: gK2VXX
+.. section: Tools/Demos
+
+Fix python-gdb.py: don't get C types once when the Python code is loaded,
+but get C types on demand. The C types can change if python-gdb.py is loaded
+before the Python executable. Patch written by Thomas Ilsche.
+
+..
+
+.. bpo: 26271
+.. date: 8866
+.. nonce: wg-rzr
+.. section: Tools/Demos
+
+Fix the Freeze tool to properly use flags passed through configure. Patch by
+Daniel Shaulov.
+
+..
+
+.. bpo: 26489
+.. date: 8865
+.. nonce: rJ_U5S
+.. section: Tools/Demos
+
+Add dictionary unpacking support to Tools/parser/unparse.py. Patch by Guo Ci
+Teo.
+
+..
+
+.. bpo: 26316
+.. date: 8864
+.. nonce: QJvVOi
+.. section: Tools/Demos
+
+Fix variable name typo in Argument Clinic.
+
+..
+
+.. bpo: 25440
+.. date: 8863
+.. nonce: 5xhyGr
+.. section: Tools/Demos
+
+Fix output of python-config --extension-suffix.
+
+..
+
+.. bpo: 25154
+.. date: 8862
+.. nonce: yLO-r4
+.. section: Tools/Demos
+
+The pyvenv script has been deprecated in favour of `python3 -m venv`.
+
+..
+
+.. bpo: 26312
+.. date: 8861
+.. nonce: h1T61B
+.. section: C API
+
+SystemError is now raised in all programming bugs with using
+PyArg_ParseTupleAndKeywords(). RuntimeError did raised before in some
+programming bugs.
+
+..
+
+.. bpo: 26198
+.. date: 8860
+.. nonce: lVn1HX
+.. section: C API
+
+ValueError is now raised instead of TypeError on buffer overflow in parsing
+"es#" and "et#" format units. SystemError is now raised instead of
+TypeError on programmatical error in parsing format string.
--- /dev/null
+.. release date: 2016-06-13
+.. bpo: 26556
+.. date: 9316
+.. nonce: v5j2uL
+.. original section: Library
+.. section: Security
+
+Update expat to 2.1.1, fixes CVE-2015-1283.
+
+..
+
+.. bpo: 0
+.. date: 9315
+.. nonce: PHOAdg
+.. original section: Library
+.. section: Security
+
+Fix TLS stripping vulnerability in smtplib, CVE-2016-0772. Reported by Team
+Oststrom.
+
+..
+
+.. bpo: 26839
+.. date: 9303
+.. nonce: yVvy7R
+.. original section: Library
+.. section: Security
+
+On Linux, :func:`os.urandom` now calls ``getrandom()`` with
+``GRND_NONBLOCK`` to fall back on reading ``/dev/urandom`` if the urandom
+entropy pool is not initialized yet. Patch written by Colm Buckley.
+
+..
+
+.. bpo: 27095
+.. date: 9332
+.. nonce: 92UoyH
+.. section: Core and Builtins
+
+Simplified MAKE_FUNCTION and removed MAKE_CLOSURE opcodes. Patch by Demur
+Rumed.
+
+..
+
+.. bpo: 27190
+.. date: 9331
+.. nonce: DHDFeD
+.. section: Core and Builtins
+
+Raise NotSupportedError if sqlite3 is older than 3.3.1. Patch by Dave
+Sawyer.
+
+..
+
+.. bpo: 27286
+.. date: 9330
+.. nonce: U8q6B1
+.. section: Core and Builtins
+
+Fixed compiling BUILD_MAP_UNPACK_WITH_CALL opcode. Calling function with
+generalized unpacking (PEP 448) and conflicting keyword names could cause
+undefined behavior.
+
+..
+
+.. bpo: 27140
+.. date: 9329
+.. nonce: uc39-1
+.. section: Core and Builtins
+
+Added BUILD_CONST_KEY_MAP opcode.
+
+..
+
+.. bpo: 27186
+.. date: 9328
+.. nonce: EAnCS7
+.. section: Core and Builtins
+
+Add support for os.PathLike objects to open() (part of :pep:`519`).
+
+..
+
+.. bpo: 27066
+.. date: 9327
+.. nonce: SNExZi
+.. section: Core and Builtins
+
+Fixed SystemError if a custom opener (for open()) returns a negative number
+without setting an exception.
+
+..
+
+.. bpo: 26983
+.. date: 9326
+.. nonce: A0f3fK
+.. section: Core and Builtins
+
+float() now always return an instance of exact float. The deprecation
+warning is emitted if __float__ returns an instance of a strict subclass of
+float. In a future versions of Python this can be an error.
+
+..
+
+.. bpo: 27097
+.. date: 9325
+.. nonce: woRKey
+.. section: Core and Builtins
+
+Python interpreter is now about 7% faster due to optimized instruction
+decoding. Based on patch by Demur Rumed.
+
+..
+
+.. bpo: 26647
+.. date: 9324
+.. nonce: DLSzRi
+.. section: Core and Builtins
+
+Python interpreter now uses 16-bit wordcode instead of bytecode. Patch by
+Demur Rumed.
+
+..
+
+.. bpo: 23275
+.. date: 9323
+.. nonce: YGPb_y
+.. section: Core and Builtins
+
+Allow assigning to an empty target list in round brackets: () = iterable.
+
+..
+
+.. bpo: 27243
+.. date: 9322
+.. nonce: U36M4E
+.. section: Core and Builtins
+
+Update the __aiter__ protocol: instead of returning an awaitable that
+resolves to an asynchronous iterator, the asynchronous iterator should be
+returned directly. Doing the former will trigger a
+PendingDeprecationWarning.
+
+..
+
+.. bpo: 0
+.. date: 9321
+.. nonce: nBpVM1
+.. section: Library
+
+Comment out socket (SO_REUSEPORT) and posix (O_SHLOCK, O_EXLOCK) constants
+exposed on the API which are not implemented on GNU/Hurd. They would not
+work at runtime anyway.
+
+..
+
+.. bpo: 27025
+.. date: 9320
+.. nonce: ffzxpX
+.. section: Library
+
+Generated names for Tkinter widgets are now more meaningful and recognizable.
+
+..
+
+.. bpo: 25455
+.. date: 9319
+.. nonce: k10GoO
+.. section: Library
+
+Fixed crashes in repr of recursive ElementTree.Element and functools.partial
+objects.
+
+..
+
+.. bpo: 27294
+.. date: 9318
+.. nonce: XPCURr
+.. section: Library
+
+Improved repr for Tkinter event objects.
+
+..
+
+.. bpo: 20508
+.. date: 9317
+.. nonce: 3NMbT2
+.. section: Library
+
+Improve exception message of IPv{4,6}Network.__getitem__. Patch by Gareth
+Rees.
+
+..
+
+.. bpo: 21386
+.. date: 9314
+.. nonce: DjV72U
+.. section: Library
+
+Implement missing IPv4Address.is_global property. It was documented since
+07a5610bae9d. Initial patch by Roger Luethi.
+
+..
+
+.. bpo: 27029
+.. date: 9313
+.. nonce: dmycvw
+.. section: Library
+
+Removed deprecated support of universal newlines mode from ZipFile.open().
+
+..
+
+.. bpo: 27030
+.. date: 9312
+.. nonce: p29J7m
+.. section: Library
+
+Unknown escapes consisting of ``'\'`` and an ASCII letter in regular
+expressions now are errors. The re.LOCALE flag now can be used only with
+bytes patterns.
+
+..
+
+.. bpo: 27186
+.. date: 9311
+.. nonce: UYiwoh
+.. section: Library
+
+Add os.PathLike support to DirEntry (part of :pep:`519`). Initial patch by
+Jelle Zijlstra.
+
+..
+
+.. bpo: 20900
+.. date: 9310
+.. nonce: H5YQPR
+.. section: Library
+
+distutils register command now decodes HTTP responses correctly. Initial
+patch by ingrid.
+
+..
+
+.. bpo: 27186
+.. date: 9309
+.. nonce: Xo4c_F
+.. section: Library
+
+Add os.PathLike support to pathlib, removing its provisional status (part of
+PEP 519). Initial patch by Dusty Phillips.
+
+..
+
+.. bpo: 27186
+.. date: 9308
+.. nonce: ZD1wpp
+.. section: Library
+
+Add support for os.PathLike objects to os.fsencode() and os.fsdecode() (part
+of :pep:`519`).
+
+..
+
+.. bpo: 27186
+.. date: 9307
+.. nonce: y7YRfj
+.. section: Library
+
+Introduce os.PathLike and os.fspath() (part of :pep:`519`).
+
+..
+
+.. bpo: 0
+.. date: 9306
+.. nonce: iYIeng
+.. section: Library
+
+A new version of typing.py provides several new classes and features:
+@overload outside stubs, Reversible, DefaultDict, Text, ContextManager,
+Type[], NewType(), TYPE_CHECKING, and numerous bug fixes (note that some of
+the new features are not yet implemented in mypy or other static analyzers).
+Also classes for :pep:`492` (Awaitable, AsyncIterable, AsyncIterator) have been
+added (in fact they made it into 3.5.1 but were never mentioned).
+
+..
+
+.. bpo: 25738
+.. date: 9305
+.. nonce: mED9w4
+.. section: Library
+
+Stop http.server.BaseHTTPRequestHandler.send_error() from sending a message
+body for 205 Reset Content. Also, don't send Content header fields in
+responses that don't have a body. Patch by Susumu Koshiba.
+
+..
+
+.. bpo: 21313
+.. date: 9304
+.. nonce: W30MBr
+.. section: Library
+
+Fix the "platform" module to tolerate when sys.version contains truncated
+build information.
+
+..
+
+.. bpo: 23883
+.. date: 9302
+.. nonce: tsZUiM
+.. section: Library
+
+Added missing APIs to __all__ to match the documented APIs for the following
+modules: cgi, mailbox, mimetypes, plistlib and smtpd. Patches by Jacek
+Kołodziej.
+
+..
+
+.. bpo: 27164
+.. date: 9301
+.. nonce: 6wmjx2
+.. section: Library
+
+In the zlib module, allow decompressing raw Deflate streams with a
+predefined zdict. Based on patch by Xiang Zhang.
+
+..
+
+.. bpo: 24291
+.. date: 9300
+.. nonce: Ac6HvL
+.. section: Library
+
+Fix wsgiref.simple_server.WSGIRequestHandler to completely write data to the
+client. Previously it could do partial writes and truncate data. Also,
+wsgiref.handler.ServerHandler can now handle stdout doing partial writes,
+but this is deprecated.
+
+..
+
+.. bpo: 21272
+.. date: 9299
+.. nonce: unScIG
+.. section: Library
+
+Use _sysconfigdata.py to initialize distutils.sysconfig.
+
+..
+
+.. bpo: 19611
+.. date: 9298
+.. nonce: MT-Qga
+.. section: Library
+
+:mod:`inspect` now reports the implicit ``.0`` parameters generated by the
+compiler for comprehension and generator expression scopes as if they were
+positional-only parameters called ``implicit0``. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 26809
+.. date: 9297
+.. nonce: ya7JMb
+.. section: Library
+
+Add ``__all__`` to :mod:`string`. Patch by Emanuel Barry.
+
+..
+
+.. bpo: 26373
+.. date: 9296
+.. nonce: P6qz6o
+.. section: Library
+
+subprocess.Popen.communicate now correctly ignores BrokenPipeError when the
+child process dies before .communicate() is called in more/all
+circumstances.
+
+..
+
+.. bpo: 0
+.. date: 9295
+.. nonce: eKchPz
+.. section: Library
+
+signal, socket, and ssl module IntEnum constant name lookups now return a
+consistent name for values having multiple names. Ex: signal.Signals(6) now
+refers to itself as signal.SIGALRM rather than flipping between that and
+signal.SIGIOT based on the interpreter's hash randomization seed.
+
+..
+
+.. bpo: 27167
+.. date: 9294
+.. nonce: orA_j0
+.. section: Library
+
+Clarify the subprocess.CalledProcessError error message text when the child
+process died due to a signal.
+
+..
+
+.. bpo: 25931
+.. date: 9293
+.. nonce: W7h6Am
+.. section: Library
+
+Don't define socketserver.Forking* names on platforms such as Windows that
+do not support os.fork().
+
+..
+
+.. bpo: 21776
+.. date: 9292
+.. nonce: 04eQfa
+.. section: Library
+
+distutils.upload now correctly handles HTTPError. Initial patch by Claudiu
+Popa.
+
+..
+
+.. bpo: 26526
+.. date: 9291
+.. nonce: ScewjJ
+.. section: Library
+
+Replace custom parse tree validation in the parser module with a simple DFA
+validator.
+
+..
+
+.. bpo: 27114
+.. date: 9290
+.. nonce: bGCuAM
+.. section: Library
+
+Fix SSLContext._load_windows_store_certs fails with PermissionError
+
+..
+
+.. bpo: 18383
+.. date: 9289
+.. nonce: jr-b0l
+.. section: Library
+
+Avoid creating duplicate filters when using filterwarnings and simplefilter.
+Based on patch by Alex Shkop.
+
+..
+
+.. bpo: 23026
+.. date: 9288
+.. nonce: V2rgYX
+.. section: Library
+
+winreg.QueryValueEx() now return an integer for REG_QWORD type.
+
+..
+
+.. bpo: 26741
+.. date: 9287
+.. nonce: fsbb42
+.. section: Library
+
+subprocess.Popen destructor now emits a ResourceWarning warning if the child
+process is still running.
+
+..
+
+.. bpo: 27056
+.. date: 9286
+.. nonce: rk-BBL
+.. section: Library
+
+Optimize pickle.load() and pickle.loads(), up to 10% faster to deserialize a
+lot of small objects.
+
+..
+
+.. bpo: 21271
+.. date: 9285
+.. nonce: bHIfFA
+.. section: Library
+
+New keyword only parameters in reset_mock call.
+
+..
+
+.. bpo: 5124
+.. date: 9284
+.. nonce: 4kwBvM
+.. section: IDLE
+
+Paste with text selected now replaces the selection on X11. This matches how
+paste works on Windows, Mac, most modern Linux apps, and ttk widgets.
+Original patch by Serhiy Storchaka.
+
+..
+
+.. bpo: 24750
+.. date: 9283
+.. nonce: wA-pc9
+.. section: IDLE
+
+Switch all scrollbars in IDLE to ttk versions. Where needed, minimal tests
+are added to cover changes.
+
+..
+
+.. bpo: 24759
+.. date: 9282
+.. nonce: 76HB4w
+.. section: IDLE
+
+IDLE requires tk 8.5 and availability ttk widgets. Delete now unneeded tk
+version tests and code for older versions. Add test for IDLE syntax
+colorizer.
+
+..
+
+.. bpo: 27239
+.. date: 9281
+.. nonce: fToURh
+.. section: IDLE
+
+idlelib.macosx.isXyzTk functions initialize as needed.
+
+..
+
+.. bpo: 27262
+.. date: 9280
+.. nonce: t7ckly
+.. section: IDLE
+
+move Aqua unbinding code, which enable context menus, to macosx.
+
+..
+
+.. bpo: 24759
+.. date: 9279
+.. nonce: ccmySu
+.. section: IDLE
+
+Make clear in idlelib.idle_test.__init__ that the directory is a private
+implementation of test.test_idle and tool for maintainers.
+
+..
+
+.. bpo: 27196
+.. date: 9278
+.. nonce: 3yp8TF
+.. section: IDLE
+
+Stop 'ThemeChanged' warnings when running IDLE tests. These persisted after
+other warnings were suppressed in #20567. Apply Serhiy Storchaka's
+update_idletasks solution to four test files. Record this additional advice
+in idle_test/README.txt
+
+..
+
+.. bpo: 20567
+.. date: 9277
+.. nonce: hhT32b
+.. section: IDLE
+
+Revise idle_test/README.txt with advice about avoiding tk warning messages
+from tests. Apply advice to several IDLE tests.
+
+..
+
+.. bpo: 24225
+.. date: 9276
+.. nonce: NxQCka
+.. section: IDLE
+
+Update idlelib/README.txt with new file names and event handlers.
+
+..
+
+.. bpo: 27156
+.. date: 9275
+.. nonce: j1N9br
+.. section: IDLE
+
+Remove obsolete code not used by IDLE.
+
+..
+
+.. bpo: 27117
+.. date: 9274
+.. nonce: YrLPf4
+.. section: IDLE
+
+Make colorizer htest and turtledemo work with dark themes. Move code for
+configuring text widget colors to a new function.
+
+..
+
+.. bpo: 24225
+.. date: 9273
+.. nonce: RbyFuV
+.. section: IDLE
+
+Rename many `idlelib/*.py` and `idle_test/test_*.py` files. Edit files to
+replace old names with new names when the old name referred to the module
+rather than the class it contained. See the issue and IDLE section in What's
+New in 3.6 for more.
+
+..
+
+.. bpo: 26673
+.. date: 9272
+.. nonce: dh0_Ij
+.. section: IDLE
+
+When tk reports font size as 0, change to size 10. Such fonts on Linux
+prevented the configuration dialog from opening.
+
+..
+
+.. bpo: 21939
+.. date: 9271
+.. nonce: pWz-OK
+.. section: IDLE
+
+Add test for IDLE's percolator. Original patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 21676
+.. date: 9270
+.. nonce: hqy6Qh
+.. section: IDLE
+
+Add test for IDLE's replace dialog. Original patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 18410
+.. date: 9269
+.. nonce: DLSPZo
+.. section: IDLE
+
+Add test for IDLE's search dialog. Original patch by Westley Martínez.
+
+..
+
+.. bpo: 21703
+.. date: 9268
+.. nonce: bEU8sP
+.. section: IDLE
+
+Add test for undo delegator. Patch mostly by Saimadhav Heblikar .
+
+..
+
+.. bpo: 27044
+.. date: 9267
+.. nonce: 4y7tyM
+.. section: IDLE
+
+Add ConfigDialog.remove_var_callbacks to stop memory leaks.
+
+..
+
+.. bpo: 23977
+.. date: 9266
+.. nonce: miDjj8
+.. section: IDLE
+
+Add more asserts to test_delegator.
+
+..
+
+.. bpo: 16484
+.. date: 9265
+.. nonce: ITzcGg
+.. section: Documentation
+
+Change the default PYTHONDOCS URL to "https:", and fix the resulting links
+to use lowercase. Patch by Sean Rodman, test by Kaushik Nadikuditi.
+
+..
+
+.. bpo: 24136
+.. date: 9264
+.. nonce: MUK0zK
+.. section: Documentation
+
+Document the new :pep:`448` unpacking syntax of 3.5.
+
+..
+
+.. bpo: 22558
+.. date: 9263
+.. nonce: Pk02YC
+.. section: Documentation
+
+Add remaining doc links to source code for Python-coded modules. Patch by
+Yoni Lavi.
+
+..
+
+.. bpo: 25285
+.. date: 9262
+.. nonce: 6CxIBo
+.. section: Tests
+
+regrtest now uses subprocesses when the -j1 command line option is used:
+each test file runs in a fresh child process. Before, the -j1 option was
+ignored.
+
+..
+
+.. bpo: 25285
+.. date: 9261
+.. nonce: ENYqUQ
+.. section: Tests
+
+Tools/buildbot/test.bat script now uses -j1 by default to run each test file
+in fresh child process.
+
+..
+
+.. bpo: 27064
+.. date: 9260
+.. nonce: xeY1WF
+.. section: Windows
+
+The py.exe launcher now defaults to Python 3. The Windows launcher
+``py.exe`` no longer prefers an installed Python 2 version over Python 3 by
+default when used interactively.
+
+..
+
+.. bpo: 17500
+.. date: 9257
+.. nonce: QTZbRV
+.. section: Windows
+
+Remove unused and outdated icons. (See also:
+https://github.com/python/pythondotorg/issues/945)
+
+..
+
+.. bpo: 27229
+.. date: 9259
+.. nonce: C2NDch
+.. section: Build
+
+Fix the cross-compiling pgen rule for in-tree builds. Patch by Xavier de
+Gaye.
+
+..
+
+.. bpo: 26930
+.. date: 9258
+.. nonce: Sqz2O3
+.. section: Build
+
+Update OS X 10.5+ 32-bit-only installer to build and link with OpenSSL
+1.0.2h.
+
+..
+
+.. bpo: 27186
+.. date: 9256
+.. nonce: Ll8R-t
+.. section: C API
+
+Add the PyOS_FSPath() function (part of :pep:`519`).
+
+..
+
+.. bpo: 26282
+.. date: 9255
+.. nonce: Rp-R6L
+.. section: C API
+
+PyArg_ParseTupleAndKeywords() now supports positional-only parameters.
+
+..
+
+.. bpo: 26282
+.. date: 9254
+.. nonce: DRRV--
+.. section: Tools/Demos
+
+Argument Clinic now supports positional-only and keyword parameters in the
+same function.
--- /dev/null
+.. release date: 2016-07-11
+.. bpo: 27278
+.. date: 9361
+.. nonce: y_HkGw
+.. original section: Library
+.. section: Security
+
+Fix os.urandom() implementation using getrandom() on Linux. Truncate size
+to INT_MAX and loop until we collected enough random bytes, instead of
+casting a directly Py_ssize_t to int.
+
+..
+
+.. bpo: 22636
+.. date: 9357
+.. nonce: 3fQW_g
+.. original section: Library
+.. section: Security
+
+Avoid shell injection problems with ctypes.util.find_library().
+
+..
+
+.. bpo: 27473
+.. date: 9385
+.. nonce: _nOtTA
+.. section: Core and Builtins
+
+Fixed possible integer overflow in bytes and bytearray concatenations.
+Patch by Xiang Zhang.
+
+..
+
+.. bpo: 23034
+.. date: 9384
+.. nonce: GWaUqn
+.. section: Core and Builtins
+
+The output of a special Python build with defined COUNT_ALLOCS,
+SHOW_ALLOC_COUNT or SHOW_TRACK_COUNT macros is now off by default. It can
+be re-enabled using the "-X showalloccount" option. It now outputs to
+stderr instead of stdout.
+
+..
+
+.. bpo: 27443
+.. date: 9383
+.. nonce: 87ZwZ1
+.. section: Core and Builtins
+
+__length_hint__() of bytearray iterators no longer return a negative integer
+for a resized bytearray.
+
+..
+
+.. bpo: 27007
+.. date: 9382
+.. nonce: Gg8Um4
+.. section: Core and Builtins
+
+The fromhex() class methods of bytes and bytearray subclasses now return an
+instance of corresponding subclass.
+
+..
+
+.. bpo: 26844
+.. date: 9381
+.. nonce: I0wdnY
+.. section: Library
+
+Fix error message for imp.find_module() to refer to 'path' instead of
+'name'. Patch by Lev Maximov.
+
+..
+
+.. bpo: 23804
+.. date: 9380
+.. nonce: ipFvxc
+.. section: Library
+
+Fix SSL zero-length recv() calls to not block and not raise an error about
+unclean EOF.
+
+..
+
+.. bpo: 27466
+.. date: 9379
+.. nonce: C_3a8E
+.. section: Library
+
+Change time format returned by http.cookie.time2netscape, confirming the
+netscape cookie format and making it consistent with documentation.
+
+..
+
+.. bpo: 21708
+.. date: 9378
+.. nonce: RpPYiv
+.. section: Library
+
+Deprecated dbm.dumb behavior that differs from common dbm behavior: creating
+a database in 'r' and 'w' modes and modifying a database in 'r' mode.
+
+..
+
+.. bpo: 26721
+.. date: 9377
+.. nonce: L37Y7r
+.. section: Library
+
+Change the socketserver.StreamRequestHandler.wfile attribute to implement
+BufferedIOBase. In particular, the write() method no longer does partial
+writes.
+
+..
+
+.. bpo: 22115
+.. date: 9376
+.. nonce: vG5UQW
+.. section: Library
+
+Added methods trace_add, trace_remove and trace_info in the tkinter.Variable
+class. They replace old methods trace_variable, trace, trace_vdelete and
+trace_vinfo that use obsolete Tcl commands and might not work in future
+versions of Tcl. Fixed old tracing methods: trace_vdelete() with wrong mode
+no longer break tracing, trace_vinfo() now always returns a list of pairs of
+strings, tracing in the "u" mode now works.
+
+..
+
+.. bpo: 26243
+.. date: 9375
+.. nonce: dBtlhI
+.. section: Library
+
+Only the level argument to zlib.compress() is keyword argument now. The
+first argument is positional-only.
+
+..
+
+.. bpo: 27038
+.. date: 9374
+.. nonce: yGMV4h
+.. section: Library
+
+Expose the DirEntry type as os.DirEntry. Code patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 27186
+.. date: 9373
+.. nonce: OtorpF
+.. section: Library
+
+Update os.fspath()/PyOS_FSPath() to check the return value of __fspath__()
+to be either str or bytes.
+
+..
+
+.. bpo: 18726
+.. date: 9372
+.. nonce: eIXHIl
+.. section: Library
+
+All optional parameters of the dump(), dumps(), load() and loads() functions
+and JSONEncoder and JSONDecoder class constructors in the json module are
+now keyword-only.
+
+..
+
+.. bpo: 27319
+.. date: 9371
+.. nonce: vDl2zm
+.. section: Library
+
+Methods selection_set(), selection_add(), selection_remove() and
+selection_toggle() of ttk.TreeView now allow passing multiple items as
+multiple arguments instead of passing them as a tuple. Deprecated
+undocumented ability of calling the selection() method with arguments.
+
+..
+
+.. bpo: 27079
+.. date: 9370
+.. nonce: c7d0Ym
+.. section: Library
+
+Fixed curses.ascii functions isblank(), iscntrl() and ispunct().
+
+..
+
+.. bpo: 27294
+.. date: 9369
+.. nonce: 0WSp9y
+.. section: Library
+
+Numerical state in the repr for Tkinter event objects is now represented as
+a combination of known flags.
+
+..
+
+.. bpo: 27177
+.. date: 9368
+.. nonce: U6jRnd
+.. section: Library
+
+Match objects in the re module now support index-like objects as group
+indices. Based on patches by Jeroen Demeyer and Xiang Zhang.
+
+..
+
+.. bpo: 26754
+.. date: 9367
+.. nonce: J3n0QW
+.. section: Library
+
+Some functions (compile() etc) accepted a filename argument encoded as an
+iterable of integers. Now only strings and byte-like objects are accepted.
+
+..
+
+.. bpo: 26536
+.. date: 9366
+.. nonce: DgLWm-
+.. section: Library
+
+socket.ioctl now supports SIO_LOOPBACK_FAST_PATH. Patch by Daniel Stokes.
+
+..
+
+.. bpo: 27048
+.. date: 9365
+.. nonce: EVe-Bk
+.. section: Library
+
+Prevents distutils failing on Windows when environment variables contain
+non-ASCII characters
+
+..
+
+.. bpo: 27330
+.. date: 9364
+.. nonce: GJaFCV
+.. section: Library
+
+Fixed possible leaks in the ctypes module.
+
+..
+
+.. bpo: 27238
+.. date: 9363
+.. nonce: Q6v6Qv
+.. section: Library
+
+Got rid of bare excepts in the turtle module. Original patch by Jelle
+Zijlstra.
+
+..
+
+.. bpo: 27122
+.. date: 9362
+.. nonce: 06t7zN
+.. section: Library
+
+When an exception is raised within the context being managed by a
+contextlib.ExitStack() and one of the exit stack generators catches and
+raises it in a chain, do not re-raise the original exception when exiting,
+let the new chained one through. This avoids the :pep:`479` bug described in
+issue25782.
+
+..
+
+.. bpo: 16864
+.. date: 9360
+.. nonce: W7tJDa
+.. section: Library
+
+sqlite3.Cursor.lastrowid now supports REPLACE statement. Initial patch by
+Alex LordThorsen.
+
+..
+
+.. bpo: 26386
+.. date: 9359
+.. nonce: 9L3Ut4
+.. section: Library
+
+Fixed ttk.TreeView selection operations with item id's containing spaces.
+
+..
+
+.. bpo: 8637
+.. date: 9358
+.. nonce: lHiUSA
+.. section: Library
+
+Honor a pager set by the env var MANPAGER (in preference to one set by the
+env var PAGER).
+
+..
+
+.. bpo: 16182
+.. date: 9356
+.. nonce: RgFXyr
+.. section: Library
+
+Fix various functions in the "readline" module to use the locale encoding,
+and fix get_begidx() and get_endidx() to return code point indexes.
+
+..
+
+.. bpo: 27392
+.. date: 9355
+.. nonce: obfni7
+.. section: Library
+
+Add loop.connect_accepted_socket(). Patch by Jim Fulton.
+
+..
+
+.. bpo: 27477
+.. date: 9354
+.. nonce: iEuL-9
+.. section: IDLE
+
+IDLE search dialogs now use ttk widgets.
+
+..
+
+.. bpo: 27173
+.. date: 9353
+.. nonce: M-fYaV
+.. section: IDLE
+
+Add 'IDLE Modern Unix' to the built-in key sets. Make the default key set
+depend on the platform. Add tests for the changes to the config module.
+
+..
+
+.. bpo: 27452
+.. date: 9352
+.. nonce: dLxZ8W
+.. section: IDLE
+
+make command line "idle-test> python test_help.py" work. __file__ is
+relative when python is started in the file's directory.
+
+..
+
+.. bpo: 27452
+.. date: 9351
+.. nonce: RtWnyR
+.. section: IDLE
+
+add line counter and crc to IDLE configHandler test dump.
+
+..
+
+.. bpo: 27380
+.. date: 9350
+.. nonce: Q39r9U
+.. section: IDLE
+
+IDLE: add query.py with base Query dialog and ttk widgets. Module had
+subclasses SectionName, ModuleName, and HelpSource, which are used to get
+information from users by configdialog and file =>Load Module. Each subclass
+has itw own validity checks. Using ModuleName allows users to edit bad
+module names instead of starting over. Add tests and delete the two files
+combined into the new one.
+
+..
+
+.. bpo: 27372
+.. date: 9349
+.. nonce: k3Wj2V
+.. section: IDLE
+
+Test_idle no longer changes the locale.
+
+..
+
+.. bpo: 27365
+.. date: 9348
+.. nonce: y7ys_A
+.. section: IDLE
+
+Allow non-ascii chars in IDLE NEWS.txt, for contributor names.
+
+..
+
+.. bpo: 27245
+.. date: 9347
+.. nonce: u9aKO1
+.. section: IDLE
+
+IDLE: Cleanly delete custom themes and key bindings. Previously, when IDLE
+was started from a console or by import, a cascade of warnings was emitted.
+Patch by Serhiy Storchaka.
+
+..
+
+.. bpo: 24137
+.. date: 9346
+.. nonce: v8o-IT
+.. section: IDLE
+
+Run IDLE, test_idle, and htest with tkinter default root disabled. Fix code
+and tests that fail with this restriction. Fix htests to not create a
+second and redundant root and mainloop.
+
+..
+
+.. bpo: 27310
+.. date: 9345
+.. nonce: KiURpC
+.. section: IDLE
+
+Fix IDLE.app failure to launch on OS X due to vestigial import.
+
+..
+
+.. bpo: 26754
+.. date: 9344
+.. nonce: Qm_N79
+.. section: C API
+
+PyUnicode_FSDecoder() accepted a filename argument encoded as an iterable of
+integers. Now only strings and byte-like objects are accepted.
+
+..
+
+.. bpo: 28066
+.. date: 9343
+.. nonce: _3xImV
+.. section: Build
+
+Fix the logic that searches build directories for generated include files
+when building outside the source tree.
+
+..
+
+.. bpo: 27442
+.. date: 9342
+.. nonce: S2M0cz
+.. section: Build
+
+Expose the Android API level that python was built against, in
+sysconfig.get_config_vars() as 'ANDROID_API_LEVEL'.
+
+..
+
+.. bpo: 27434
+.. date: 9341
+.. nonce: 4nRZmn
+.. section: Build
+
+The interpreter that runs the cross-build, found in PATH, must now be of the
+same feature version (e.g. 3.6) as the source being built.
+
+..
+
+.. bpo: 26930
+.. date: 9340
+.. nonce: 9JUeSD
+.. section: Build
+
+Update Windows builds to use OpenSSL 1.0.2h.
+
+..
+
+.. bpo: 23968
+.. date: 9339
+.. nonce: 7AuSK9
+.. section: Build
+
+Rename the platform directory from plat-$(MACHDEP) to
+plat-$(PLATFORM_TRIPLET). Rename the config directory (LIBPL) from
+config-$(LDVERSION) to config-$(LDVERSION)-$(PLATFORM_TRIPLET). Install the
+platform specific _sysconfigdata module into the platform directory and
+rename it to include the ABIFLAGS.
+
+..
+
+.. bpo: 0
+.. date: 9338
+.. nonce: U46i2u
+.. section: Build
+
+Don't use largefile support for GNU/Hurd.
+
+..
+
+.. bpo: 27332
+.. date: 9337
+.. nonce: OuRZp9
+.. section: Tools/Demos
+
+Fixed the type of the first argument of module-level functions generated by
+Argument Clinic. Patch by Petr Viktorin.
+
+..
+
+.. bpo: 27418
+.. date: 9336
+.. nonce: W2m_8I
+.. section: Tools/Demos
+
+Fixed Tools/importbench/importbench.py.
+
+..
+
+.. bpo: 19489
+.. date: 9335
+.. nonce: jvzuO7
+.. section: Documentation
+
+Moved the search box from the sidebar to the header and footer of each page.
+Patch by Ammar Askar.
+
+..
+
+.. bpo: 27285
+.. date: 9334
+.. nonce: wZur0b
+.. section: Documentation
+
+Update documentation to reflect the deprecation of ``pyvenv`` and normalize
+on the term "virtual environment". Patch by Steve Piercy.
+
+..
+
+.. bpo: 27027
+.. date: 9333
+.. nonce: 5oRSGL
+.. section: Tests
+
+Added test.support.is_android that is True when this is an Android build.
--- /dev/null
+.. bpo: 27704
+.. date: 9455
+.. nonce: RUxzHf
+.. release date: 2016-08-15
+.. section: Core and Builtins
+
+Optimized creating bytes and bytearray from byte-like objects and iterables.
+Speed up to 3 times for short objects. Original patch by Naoki Inada.
+
+..
+
+.. bpo: 26823
+.. date: 9454
+.. nonce: UWORiU
+.. section: Core and Builtins
+
+Large sections of repeated lines in tracebacks are now abbreviated as
+"[Previous line repeated {count} more times]" by the builtin traceback
+rendering. Patch by Emanuel Barry.
+
+..
+
+.. bpo: 27574
+.. date: 9453
+.. nonce: q73Tss
+.. section: Core and Builtins
+
+Decreased an overhead of parsing keyword arguments in functions implemented
+with using Argument Clinic.
+
+..
+
+.. bpo: 22557
+.. date: 9452
+.. nonce: Hta2Rz
+.. section: Core and Builtins
+
+Now importing already imported modules is up to 2.5 times faster.
+
+..
+
+.. bpo: 17596
+.. date: 9451
+.. nonce: XgbA9V
+.. section: Core and Builtins
+
+Include <wincrypt.h> to help with Min GW building.
+
+..
+
+.. bpo: 17599
+.. date: 9450
+.. nonce: noy7o1
+.. section: Core and Builtins
+
+On Windows, rename the privately defined REPARSE_DATA_BUFFER structure to
+avoid conflicting with the definition from Min GW.
+
+..
+
+.. bpo: 27507
+.. date: 9449
+.. nonce: 3pX0Be
+.. section: Core and Builtins
+
+Add integer overflow check in bytearray.extend(). Patch by Xiang Zhang.
+
+..
+
+.. bpo: 27581
+.. date: 9448
+.. nonce: KezjNt
+.. section: Core and Builtins
+
+Don't rely on wrapping for overflow check in PySequence_Tuple(). Patch by
+Xiang Zhang.
+
+..
+
+.. bpo: 1621
+.. date: 9447
+.. nonce: _FZWTr
+.. section: Core and Builtins
+
+Avoid signed integer overflow in list and tuple operations. Patch by Xiang
+Zhang.
+
+..
+
+.. bpo: 27419
+.. date: 9446
+.. nonce: YaGodL
+.. section: Core and Builtins
+
+Standard __import__() no longer look up "__import__" in globals or builtins
+for importing submodules or "from import". Fixed a crash if raise a warning
+about unabling to resolve package from __spec__ or __package__.
+
+..
+
+.. bpo: 27083
+.. date: 9445
+.. nonce: F4ZT1C
+.. section: Core and Builtins
+
+Respect the PYTHONCASEOK environment variable under Windows.
+
+..
+
+.. bpo: 27514
+.. date: 9444
+.. nonce: NLbwPG
+.. section: Core and Builtins
+
+Make having too many statically nested blocks a SyntaxError instead of
+SystemError.
+
+..
+
+.. bpo: 27366
+.. date: 9443
+.. nonce: VrInsj
+.. section: Core and Builtins
+
+Implemented :pep:`487` (Simpler customization of class creation). Upon
+subclassing, the __init_subclass__ classmethod is called on the base class.
+Descriptors are initialized with __set_name__ after class creation.
+
+..
+
+.. bpo: 26027
+.. date: 9442
+.. nonce: nfVMKM
+.. section: Library
+
+Add :pep:`519`/__fspath__() support to the os and os.path modules. Includes
+code from Jelle Zijlstra. (See also: bpo-27524)
+
+..
+
+.. bpo: 27598
+.. date: 9441
+.. nonce: y7PtEV
+.. section: Library
+
+Add Collections to collections.abc. Patch by Ivan Levkivskyi, docs by Neil
+Girdhar.
+
+..
+
+.. bpo: 25958
+.. date: 9440
+.. nonce: X-V4U1
+.. section: Library
+
+Support "anti-registration" of special methods from various ABCs, like
+__hash__, __iter__ or __len__. All these (and several more) can be set to
+None in an implementation class and the behavior will be as if the method is
+not defined at all. (Previously, this mechanism existed only for __hash__,
+to make mutable classes unhashable.) Code contributed by Andrew Barnert and
+Ivan Levkivskyi.
+
+..
+
+.. bpo: 16764
+.. date: 9439
+.. nonce: cPbNjL
+.. section: Library
+
+Support keyword arguments to zlib.decompress(). Patch by Xiang Zhang.
+
+..
+
+.. bpo: 27736
+.. date: 9438
+.. nonce: 8kMhpQ
+.. section: Library
+
+Prevent segfault after interpreter re-initialization due to ref count
+problem introduced in code for Issue #27038 in 3.6.0a3. Patch by Xiang
+Zhang.
+
+..
+
+.. bpo: 25628
+.. date: 9437
+.. nonce: UcQnHF
+.. section: Library
+
+The *verbose* and *rename* parameters for collections.namedtuple are now
+keyword-only.
+
+..
+
+.. bpo: 12345
+.. date: 9436
+.. nonce: nbAEM8
+.. section: Library
+
+Add mathematical constant tau to math and cmath. See also :pep:`628`.
+
+..
+
+.. bpo: 26823
+.. date: 9435
+.. nonce: HcO8tR
+.. section: Library
+
+traceback.StackSummary.format now abbreviates large sections of repeated
+lines as "[Previous line repeated {count} more times]" (this change then
+further affects other traceback display operations in the module). Patch by
+Emanuel Barry.
+
+..
+
+.. bpo: 27664
+.. date: 9434
+.. nonce: 6DJPxw
+.. section: Library
+
+Add to concurrent.futures.thread.ThreadPoolExecutor() the ability to specify
+a thread name prefix.
+
+..
+
+.. bpo: 27181
+.. date: 9433
+.. nonce: 8aw9TZ
+.. section: Library
+
+Add geometric_mean and harmonic_mean to statistics module.
+
+..
+
+.. bpo: 27573
+.. date: 9432
+.. nonce: B7XhTs
+.. section: Library
+
+code.interact now prints an message when exiting.
+
+..
+
+.. bpo: 6422
+.. date: 9431
+.. nonce: iBSc45
+.. section: Library
+
+Add autorange method to timeit.Timer objects.
+
+..
+
+.. bpo: 27773
+.. date: 9430
+.. nonce: hMSSeX
+.. section: Library
+
+Correct some memory management errors server_hostname in _ssl.wrap_socket().
+
+..
+
+.. bpo: 26750
+.. date: 9429
+.. nonce: OQn3fr
+.. section: Library
+
+unittest.mock.create_autospec() now works properly for subclasses of
+property() and other data descriptors. Removes the never publicly used,
+never documented unittest.mock.DescriptorTypes tuple.
+
+..
+
+.. bpo: 26754
+.. date: 9428
+.. nonce: XZqomf
+.. section: Library
+
+Undocumented support of general bytes-like objects as path in compile() and
+similar functions is now deprecated.
+
+..
+
+.. bpo: 26800
+.. date: 9427
+.. nonce: QDcK8u
+.. section: Library
+
+Undocumented support of general bytes-like objects as paths in os functions
+is now deprecated.
+
+..
+
+.. bpo: 26981
+.. date: 9426
+.. nonce: yhNTCf
+.. section: Library
+
+Add _order_ compatibility shim to enum.Enum for Python 2/3 code bases.
+
+..
+
+.. bpo: 27661
+.. date: 9425
+.. nonce: 3JZckO
+.. section: Library
+
+Added tzinfo keyword argument to datetime.combine.
+
+..
+
+.. bpo: 0
+.. date: 9424
+.. nonce: Ny9oPv
+.. section: Library
+
+In the curses module, raise an error if window.getstr() or window.instr() is
+passed a negative value.
+
+..
+
+.. bpo: 27783
+.. date: 9423
+.. nonce: cR1jXH
+.. section: Library
+
+Fix possible usage of uninitialized memory in operator.methodcaller.
+
+..
+
+.. bpo: 27774
+.. date: 9422
+.. nonce: FDcik1
+.. section: Library
+
+Fix possible Py_DECREF on unowned object in _sre.
+
+..
+
+.. bpo: 27760
+.. date: 9421
+.. nonce: gxMjp4
+.. section: Library
+
+Fix possible integer overflow in binascii.b2a_qp.
+
+..
+
+.. bpo: 27758
+.. date: 9420
+.. nonce: 0NRV03
+.. section: Library
+
+Fix possible integer overflow in the _csv module for large record lengths.
+
+..
+
+.. bpo: 27568
+.. date: 9419
+.. nonce: OnuO9s
+.. section: Library
+
+Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the HTTP_PROXY variable
+when REQUEST_METHOD environment is set, which indicates that the script is
+in CGI mode.
+
+..
+
+.. bpo: 7063
+.. date: 9418
+.. nonce: nXsVKB
+.. section: Library
+
+Remove dead code from the "array" module's slice handling. Patch by Chuck.
+
+..
+
+.. bpo: 27656
+.. date: 9417
+.. nonce: joTscM
+.. section: Library
+
+Do not assume sched.h defines any SCHED_* constants.
+
+..
+
+.. bpo: 27130
+.. date: 9416
+.. nonce: SUxwXZ
+.. section: Library
+
+In the "zlib" module, fix handling of large buffers (typically 4 GiB) when
+compressing and decompressing. Previously, inputs were limited to 4 GiB,
+and compression and decompression operations did not properly handle results
+of 4 GiB.
+
+..
+
+.. bpo: 24773
+.. date: 9415
+.. nonce: IDW05R
+.. section: Library
+
+Implemented :pep:`495` (Local Time Disambiguation).
+
+..
+
+.. bpo: 0
+.. date: 9414
+.. nonce: lOkwM8
+.. section: Library
+
+Expose the EPOLLEXCLUSIVE constant (when it is defined) in the select
+module.
+
+..
+
+.. bpo: 27567
+.. date: 9413
+.. nonce: bYOgyw
+.. section: Library
+
+Expose the EPOLLRDHUP and POLLRDHUP constants in the select module.
+
+..
+
+.. bpo: 1621
+.. date: 9412
+.. nonce: 0nclmI
+.. section: Library
+
+Avoid signed int negation overflow in the "audioop" module.
+
+..
+
+.. bpo: 27533
+.. date: 9411
+.. nonce: iDmKzV
+.. section: Library
+
+Release GIL in nt._isdir
+
+..
+
+.. bpo: 17711
+.. date: 9410
+.. nonce: 47AILJ
+.. section: Library
+
+Fixed unpickling by the persistent ID with protocol 0. Original patch by
+Alexandre Vassalotti.
+
+..
+
+.. bpo: 27522
+.. date: 9409
+.. nonce: 8vVz_t
+.. section: Library
+
+Avoid an unintentional reference cycle in email.feedparser.
+
+..
+
+.. bpo: 27512
+.. date: 9408
+.. nonce: FaGwup
+.. section: Library
+
+Fix a segfault when os.fspath() called an __fspath__() method that raised an
+exception. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 27714
+.. date: 9407
+.. nonce: bUEDsI
+.. section: IDLE
+
+text_textview and test_autocomplete now pass when re-run in the same
+process. This occurs when test_idle fails when run with the -w option but
+without -jn. Fix warning from test_config.
+
+..
+
+.. bpo: 27621
+.. date: 9406
+.. nonce: BcpOPU
+.. section: IDLE
+
+Put query response validation error messages in the query box itself instead
+of in a separate messagebox. Redo tests to match. Add Mac OSX refinements.
+Original patch by Mark Roseman.
+
+..
+
+.. bpo: 27620
+.. date: 9405
+.. nonce: TXRR6x
+.. section: IDLE
+
+Escape key now closes Query box as cancelled.
+
+..
+
+.. bpo: 27609
+.. date: 9404
+.. nonce: MbTuKa
+.. section: IDLE
+
+IDLE: tab after initial whitespace should tab, not autocomplete. This fixes
+problem with writing docstrings at least twice indented.
+
+..
+
+.. bpo: 27609
+.. date: 9403
+.. nonce: OBYgv_
+.. section: IDLE
+
+Explicitly return None when there are also non-None returns. In a few cases,
+reverse a condition and eliminate a return.
+
+..
+
+.. bpo: 25507
+.. date: 9402
+.. nonce: lxf68d
+.. section: IDLE
+
+IDLE no longer runs buggy code because of its tkinter imports. Users must
+include the same imports required to run directly in Python.
+
+..
+
+.. bpo: 27173
+.. date: 9401
+.. nonce: M-fYaV
+.. section: IDLE
+
+Add 'IDLE Modern Unix' to the built-in key sets. Make the default key set
+depend on the platform. Add tests for the changes to the config module.
+
+..
+
+.. bpo: 27452
+.. date: 9400
+.. nonce: RtWnyR
+.. section: IDLE
+
+add line counter and crc to IDLE configHandler test dump.
+
+..
+
+.. bpo: 25805
+.. date: 9399
+.. nonce: 9SVxXQ
+.. section: Tests
+
+Skip a test in test_pkgutil as needed that doesn't work when ``__name__ ==
+__main__``. Patch by SilentGhost.
+
+..
+
+.. bpo: 27472
+.. date: 9398
+.. nonce: NS3L93
+.. section: Tests
+
+Add test.support.unix_shell as the path to the default shell.
+
+..
+
+.. bpo: 27369
+.. date: 9397
+.. nonce: LG7U2D
+.. section: Tests
+
+In test_pyexpat, avoid testing an error message detail that changed in Expat
+2.2.0.
+
+..
+
+.. bpo: 27594
+.. date: 9396
+.. nonce: w3F57B
+.. section: Tests
+
+Prevent assertion error when running test_ast with coverage enabled: ensure
+code object has a valid first line number. Patch suggested by Ivan
+Levkivskyi.
+
+..
+
+.. bpo: 27647
+.. date: 9395
+.. nonce: -1HUR6
+.. section: Windows
+
+Update bundled Tcl/Tk to 8.6.6.
+
+..
+
+.. bpo: 27610
+.. date: 9394
+.. nonce: O0o0mB
+.. section: Windows
+
+Adds :pep:`514` metadata to Windows installer
+
+..
+
+.. bpo: 27469
+.. date: 9393
+.. nonce: 0GwDkX
+.. section: Windows
+
+Adds a shell extension to the launcher so that drag and drop works
+correctly.
+
+..
+
+.. bpo: 27309
+.. date: 9392
+.. nonce: chiOo6
+.. section: Windows
+
+Enables proper Windows styles in python[w].exe manifest.
+
+..
+
+.. bpo: 27713
+.. date: 9391
+.. nonce: _3DgXG
+.. section: Build
+
+Suppress spurious build warnings when updating importlib's bootstrap files.
+Patch by Xiang Zhang
+
+..
+
+.. bpo: 25825
+.. date: 9390
+.. nonce: MLbdVU
+.. section: Build
+
+Correct the references to Modules/python.exp, which is required on AIX. The
+references were accidentally changed in 3.5.0a1.
+
+..
+
+.. bpo: 27453
+.. date: 9389
+.. nonce: Pb5DBi
+.. section: Build
+
+CPP invocation in configure must use CPPFLAGS. Patch by Chi Hsuan Yen.
+
+..
+
+.. bpo: 27641
+.. date: 9388
+.. nonce: eGzgCk
+.. section: Build
+
+The configure script now inserts comments into the makefile to prevent the
+pgen and _freeze_importlib executables from being cross-compiled.
+
+..
+
+.. bpo: 26662
+.. date: 9387
+.. nonce: XkwRxM
+.. section: Build
+
+Set PYTHON_FOR_GEN in configure as the Python program to be used for file
+generation during the build.
+
+..
+
+.. bpo: 10910
+.. date: 9386
+.. nonce: ZdRayb
+.. section: Build
+
+Avoid C++ compilation errors on FreeBSD and OS X. Also update FreedBSD
+version checks for the original ctype UTF-8 workaround.
--- /dev/null
+.. bpo: 23722
+.. date: 9619
+.. nonce: C-8boi
+.. release date: 2016-09-12
+.. section: Core and Builtins
+
+The __class__ cell used by zero-argument super() is now initialized from
+type.__new__ rather than __build_class__, so class methods relying on that
+will now work correctly when called from metaclass methods during class
+creation. Patch by Martin Teichmann.
+
+..
+
+.. bpo: 25221
+.. date: 9618
+.. nonce: 9YbOxB
+.. section: Core and Builtins
+
+Fix corrupted result from PyLong_FromLong(0) when Python is compiled with
+NSMALLPOSINTS = 0.
+
+..
+
+.. bpo: 27080
+.. date: 9617
+.. nonce: Te4Tjb
+.. section: Core and Builtins
+
+Implement formatting support for :pep:`515`. Initial patch by Chris Angelico.
+
+..
+
+.. bpo: 27199
+.. date: 9616
+.. nonce: GheADD
+.. section: Core and Builtins
+
+In tarfile, expose copyfileobj bufsize to improve throughput. Patch by Jason
+Fried.
+
+..
+
+.. bpo: 27948
+.. date: 9615
+.. nonce: Rpw5nq
+.. section: Core and Builtins
+
+In f-strings, only allow backslashes inside the braces (where the
+expressions are). This is a breaking change from the 3.6 alpha releases,
+where backslashes are allowed anywhere in an f-string. Also, require that
+expressions inside f-strings be enclosed within literal braces, and not
+escapes like ``f'\x7b"hi"\x7d'``.
+
+..
+
+.. bpo: 28046
+.. date: 9614
+.. nonce: liHxFW
+.. section: Core and Builtins
+
+Remove platform-specific directories from sys.path.
+
+..
+
+.. bpo: 28071
+.. date: 9613
+.. nonce: PffE44
+.. section: Core and Builtins
+
+Add early-out for differencing from an empty set.
+
+..
+
+.. bpo: 25758
+.. date: 9612
+.. nonce: yR-YTD
+.. section: Core and Builtins
+
+Prevents zipimport from unnecessarily encoding a filename (patch by Eryk
+Sun)
+
+..
+
+.. bpo: 25856
+.. date: 9611
+.. nonce: neCvXl
+.. section: Core and Builtins
+
+The __module__ attribute of extension classes and functions now is interned.
+This leads to more compact pickle data with protocol 4.
+
+..
+
+.. bpo: 27213
+.. date: 9610
+.. nonce: VCfkkp
+.. section: Core and Builtins
+
+Rework CALL_FUNCTION* opcodes to produce shorter and more efficient
+bytecode. Patch by Demur Rumed, design by Serhiy Storchaka, reviewed by
+Serhiy Storchaka and Victor Stinner.
+
+..
+
+.. bpo: 26331
+.. date: 9609
+.. nonce: TdJp8_
+.. section: Core and Builtins
+
+Implement tokenizing support for :pep:`515`. Patch by Georg Brandl.
+
+..
+
+.. bpo: 27999
+.. date: 9608
+.. nonce: 8aacQj
+.. section: Core and Builtins
+
+Make "global after use" a SyntaxError, and ditto for nonlocal. Patch by Ivan
+Levkivskyi.
+
+..
+
+.. bpo: 28003
+.. date: 9607
+.. nonce: noeoav
+.. section: Core and Builtins
+
+Implement :pep:`525` -- Asynchronous Generators.
+
+..
+
+.. bpo: 27985
+.. date: 9606
+.. nonce: 0ayJ5k
+.. section: Core and Builtins
+
+Implement :pep:`526` -- Syntax for Variable Annotations. Patch by Ivan
+Levkivskyi.
+
+..
+
+.. bpo: 26058
+.. date: 9605
+.. nonce: UR_ojv
+.. section: Core and Builtins
+
+Add a new private version to the builtin dict type, incremented at each
+dictionary creation and at each dictionary change. Implementation of the PEP
+509.
+
+..
+
+.. bpo: 27364
+.. date: 9604
+.. nonce: 8u_LoD
+.. section: Core and Builtins
+
+A backslash-character pair that is not a valid escape sequence now generates
+a DeprecationWarning. Patch by Emanuel Barry.
+
+..
+
+.. bpo: 27350
+.. date: 9603
+.. nonce: aABzcL
+.. section: Core and Builtins
+
+`dict` implementation is changed like PyPy. It is more compact and preserves
+insertion order. (Concept developed by Raymond Hettinger and patch by Inada
+Naoki.)
+
+..
+
+.. bpo: 27911
+.. date: 9602
+.. nonce: 1eaHRd
+.. section: Core and Builtins
+
+Remove unnecessary error checks in ``exec_builtin_or_dynamic()``.
+
+..
+
+.. bpo: 27078
+.. date: 9601
+.. nonce: ZevPQR
+.. section: Core and Builtins
+
+Added BUILD_STRING opcode. Optimized f-strings evaluation.
+
+..
+
+.. bpo: 17884
+.. date: 9600
+.. nonce: wGy0dr
+.. section: Core and Builtins
+
+Python now requires systems with inttypes.h and stdint.h
+
+..
+
+.. bpo: 27961
+.. date: 9599
+.. nonce: EYS8oe
+.. section: Core and Builtins
+
+Require platforms to support ``long long``. Python hasn't compiled without
+``long long`` for years, so this is basically a formality.
+
+..
+
+.. bpo: 27355
+.. date: 9598
+.. nonce: qdIpxm
+.. section: Core and Builtins
+
+Removed support for Windows CE. It was never finished, and Windows CE is no
+longer a relevant platform for Python.
+
+..
+
+.. bpo: 0
+.. date: 9597
+.. nonce: rdhhVw
+.. section: Core and Builtins
+
+Implement :pep:`523`.
+
+..
+
+.. bpo: 27870
+.. date: 9596
+.. nonce: Y0u34u
+.. section: Core and Builtins
+
+A left shift of zero by a large integer no longer attempts to allocate large
+amounts of memory.
+
+..
+
+.. bpo: 25402
+.. date: 9595
+.. nonce: naeRHq
+.. section: Core and Builtins
+
+In int-to-decimal-string conversion, improve the estimate of the
+intermediate memory required, and remove an unnecessarily strict overflow
+check. Patch by Serhiy Storchaka.
+
+..
+
+.. bpo: 27214
+.. date: 9594
+.. nonce: CDh8S4
+.. section: Core and Builtins
+
+In long_invert, be more careful about modifying object returned by long_add,
+and remove an unnecessary check for small longs. Thanks Oren Milman for
+analysis and patch.
+
+..
+
+.. bpo: 27506
+.. date: 9593
+.. nonce: eK87PI
+.. section: Core and Builtins
+
+Support passing the bytes/bytearray.translate() "delete" argument by
+keyword.
+
+..
+
+.. bpo: 27812
+.. date: 9592
+.. nonce: sidcs8
+.. section: Core and Builtins
+
+Properly clear out a generator's frame's backreference to the generator to
+prevent crashes in frame.clear().
+
+..
+
+.. bpo: 27811
+.. date: 9591
+.. nonce: T4AuBo
+.. section: Core and Builtins
+
+Fix a crash when a coroutine that has not been awaited is finalized with
+warnings-as-errors enabled.
+
+..
+
+.. bpo: 27587
+.. date: 9590
+.. nonce: mbavY2
+.. section: Core and Builtins
+
+Fix another issue found by PVS-Studio: Null pointer check after use of 'def'
+in _PyState_AddModule(). Initial patch by Christian Heimes.
+
+..
+
+.. bpo: 27792
+.. date: 9589
+.. nonce: Np6_Hl
+.. section: Core and Builtins
+
+The modulo operation applied to ``bool`` and other ``int`` subclasses now
+always returns an ``int``. Previously the return type depended on the input
+values. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 26984
+.. date: 9588
+.. nonce: 7--80J
+.. section: Core and Builtins
+
+int() now always returns an instance of exact int.
+
+..
+
+.. bpo: 25604
+.. date: 9587
+.. nonce: UkeHGy
+.. section: Core and Builtins
+
+Fix a minor bug in integer true division; this bug could potentially have
+caused off-by-one-ulp results on platforms with unreliable ldexp
+implementations.
+
+..
+
+.. bpo: 24254
+.. date: 9586
+.. nonce: 368r1U
+.. section: Core and Builtins
+
+Make class definition namespace ordered by default.
+
+..
+
+.. bpo: 27662
+.. date: 9585
+.. nonce: a8cBpq
+.. section: Core and Builtins
+
+Fix an overflow check in ``List_New``: the original code was checking
+against ``Py_SIZE_MAX`` instead of the correct upper bound of
+``Py_SSIZE_T_MAX``. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 27782
+.. date: 9584
+.. nonce: C8OBQD
+.. section: Core and Builtins
+
+Multi-phase extension module import now correctly allows the ``m_methods``
+field to be used to add module level functions to instances of non-module
+types returned from ``Py_create_mod``. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 27936
+.. date: 9583
+.. nonce: AdOann
+.. section: Core and Builtins
+
+The round() function accepted a second None argument for some types but not
+for others. Fixed the inconsistency by accepting None for all numeric
+types.
+
+..
+
+.. bpo: 27487
+.. date: 9582
+.. nonce: jeTQNr
+.. section: Core and Builtins
+
+Warn if a submodule argument to "python -m" or runpy.run_module() is found
+in sys.modules after parent packages are imported, but before the submodule
+is executed.
+
+..
+
+.. bpo: 27157
+.. date: 9581
+.. nonce: Wf_eFE
+.. section: Core and Builtins
+
+Make only type() itself accept the one-argument form. Patch by Eryk Sun and
+Emanuel Barry.
+
+..
+
+.. bpo: 27558
+.. date: 9580
+.. nonce: VmltMh
+.. section: Core and Builtins
+
+Fix a SystemError in the implementation of "raise" statement. In a brand new
+thread, raise a RuntimeError since there is no active exception to reraise.
+Patch written by Xiang Zhang.
+
+..
+
+.. bpo: 28008
+.. date: 9579
+.. nonce: 0DdIrA
+.. section: Core and Builtins
+
+Implement :pep:`530` -- asynchronous comprehensions.
+
+..
+
+.. bpo: 27942
+.. date: 9578
+.. nonce: wCAkW5
+.. section: Core and Builtins
+
+Fix memory leak in codeobject.c
+
+..
+
+.. bpo: 28732
+.. date: 9577
+.. nonce: xkG8k7
+.. section: Library
+
+Fix crash in os.spawnv() with no elements in args
+
+..
+
+.. bpo: 28485
+.. date: 9576
+.. nonce: WuKqKh
+.. section: Library
+
+Always raise ValueError for negative compileall.compile_dir(workers=...)
+parameter, even when multithreading is unavailable.
+
+..
+
+.. bpo: 28037
+.. date: 9575
+.. nonce: -3u7zq
+.. section: Library
+
+Use sqlite3_get_autocommit() instead of setting Connection->inTransaction
+manually.
+
+..
+
+.. bpo: 25283
+.. date: 9574
+.. nonce: qwQDX2
+.. section: Library
+
+Attributes tm_gmtoff and tm_zone are now available on all platforms in the
+return values of time.localtime() and time.gmtime().
+
+..
+
+.. bpo: 24454
+.. date: 9573
+.. nonce: pUTKOA
+.. section: Library
+
+Regular expression match object groups are now accessible using __getitem__.
+"mo[x]" is equivalent to "mo.group(x)".
+
+..
+
+.. bpo: 10740
+.. date: 9572
+.. nonce: 8iGFan
+.. section: Library
+
+sqlite3 no longer implicitly commit an open transaction before DDL
+statements.
+
+..
+
+.. bpo: 17941
+.. date: 9571
+.. nonce: E9rm_o
+.. section: Library
+
+Add a *module* parameter to collections.namedtuple().
+
+..
+
+.. bpo: 22493
+.. date: 9570
+.. nonce: yDfUrj
+.. section: Library
+
+Inline flags now should be used only at the start of the regular expression.
+Deprecation warning is emitted if uses them in the middle of the regular
+expression.
+
+..
+
+.. bpo: 26885
+.. date: 9569
+.. nonce: TJ779X
+.. section: Library
+
+xmlrpc now supports unmarshalling additional data types used by Apache
+XML-RPC implementation for numerics and None.
+
+..
+
+.. bpo: 28070
+.. date: 9568
+.. nonce: Kot8Hu
+.. section: Library
+
+Fixed parsing inline verbose flag in regular expressions.
+
+..
+
+.. bpo: 19500
+.. date: 9567
+.. nonce: H7q5im
+.. section: Library
+
+Add client-side SSL session resumption to the ssl module.
+
+..
+
+.. bpo: 28022
+.. date: 9566
+.. nonce: 08kTMg
+.. section: Library
+
+Deprecate ssl-related arguments in favor of SSLContext. The deprecation
+include manual creation of SSLSocket and certfile/keyfile (or similar) in
+ftplib, httplib, imaplib, smtplib, poplib and urllib.
+
+..
+
+.. bpo: 28043
+.. date: 9565
+.. nonce: 588Oy3
+.. section: Library
+
+SSLContext has improved default settings: OP_NO_SSLv2, OP_NO_SSLv3,
+OP_NO_COMPRESSION, OP_CIPHER_SERVER_PREFERENCE, OP_SINGLE_DH_USE,
+OP_SINGLE_ECDH_USE and HIGH ciphers without MD5.
+
+..
+
+.. bpo: 24693
+.. date: 9564
+.. nonce: a63Shp
+.. section: Library
+
+Changed some RuntimeError's in the zipfile module to more appropriate types.
+Improved some error messages and debugging output.
+
+..
+
+.. bpo: 17909
+.. date: 9563
+.. nonce: SMNkt6
+.. section: Library
+
+``json.load`` and ``json.loads`` now support binary input encoded as UTF-8,
+UTF-16 or UTF-32. Patch by Serhiy Storchaka.
+
+..
+
+.. bpo: 27137
+.. date: 9562
+.. nonce: frjG8W
+.. section: Library
+
+the pure Python fallback implementation of ``functools.partial`` now matches
+the behaviour of its accelerated C counterpart for subclassing, pickling and
+text representation purposes. Patch by Emanuel Barry and Serhiy Storchaka.
+
+..
+
+.. bpo: 0
+.. date: 9561
+.. nonce: 81jNns
+.. section: Library
+
+Fix possible integer overflows and crashes in the mmap module with unusual
+usage patterns.
+
+..
+
+.. bpo: 1703178
+.. date: 9560
+.. nonce: meb49K
+.. section: Library
+
+Fix the ability to pass the --link-objects option to the distutils build_ext
+command.
+
+..
+
+.. bpo: 28019
+.. date: 9559
+.. nonce: KUhBaS
+.. section: Library
+
+itertools.count() no longer rounds non-integer step in range between 1.0 and
+2.0 to 1.
+
+..
+
+.. bpo: 18401
+.. date: 9558
+.. nonce: _12WDV
+.. section: Library
+
+Pdb now supports the 'readrc' keyword argument to control whether .pdbrc
+files should be read. Patch by Martin Matusiak and Sam Kimbrel.
+
+..
+
+.. bpo: 25969
+.. date: 9557
+.. nonce: qSPkl-
+.. section: Library
+
+Update the lib2to3 grammar to handle the unpacking generalizations added in
+3.5.
+
+..
+
+.. bpo: 14977
+.. date: 9556
+.. nonce: 4MvALg
+.. section: Library
+
+mailcap now respects the order of the lines in the mailcap files ("first
+match"), as required by RFC 1542. Patch by Michael Lazar.
+
+..
+
+.. bpo: 28082
+.. date: 9555
+.. nonce: EICw4d
+.. section: Library
+
+Convert re flag constants to IntFlag.
+
+..
+
+.. bpo: 28025
+.. date: 9554
+.. nonce: YxcZHY
+.. section: Library
+
+Convert all ssl module constants to IntEnum and IntFlags. SSLContext
+properties now return flags and enums.
+
+..
+
+.. bpo: 23591
+.. date: 9553
+.. nonce: 7gSXAN
+.. section: Library
+
+Add Flag, IntFlag, and auto() to enum module.
+
+..
+
+.. bpo: 433028
+.. date: 9552
+.. nonce: yGjT0q
+.. section: Library
+
+Added support of modifier spans in regular expressions.
+
+..
+
+.. bpo: 24594
+.. date: 9551
+.. nonce: 9CnFVS
+.. section: Library
+
+Validates persist parameter when opening MSI database
+
+..
+
+.. bpo: 17582
+.. date: 9550
+.. nonce: MXEHxQ
+.. section: Library
+
+xml.etree.ElementTree nows preserves whitespaces in attributes (Patch by
+Duane Griffin. Reviewed and approved by Stefan Behnel.)
+
+..
+
+.. bpo: 28047
+.. date: 9549
+.. nonce: pDu3Fm
+.. section: Library
+
+Fixed calculation of line length used for the base64 CTE in the new email
+policies.
+
+..
+
+.. bpo: 27576
+.. date: 9548
+.. nonce: tqZxYv
+.. section: Library
+
+Fix call order in OrderedDict.__init__().
+
+..
+
+.. bpo: 0
+.. date: 9547
+.. nonce: cxHuUo
+.. section: Library
+
+email.generator.DecodedGenerator now supports the policy keyword.
+
+..
+
+.. bpo: 28027
+.. date: 9546
+.. nonce: v39s1z
+.. section: Library
+
+Remove undocumented modules from ``Lib/plat-*``: IN, CDROM, DLFCN, TYPES,
+CDIO, and STROPTS.
+
+..
+
+.. bpo: 27445
+.. date: 9545
+.. nonce: wOG0C0
+.. section: Library
+
+Don't pass str(_charset) to MIMEText.set_payload(). Patch by Claude Paroz.
+
+..
+
+.. bpo: 24277
+.. date: 9544
+.. nonce: OgDA28
+.. section: Library
+
+The new email API is no longer provisional, and the docs have been
+reorganized and rewritten to emphasize the new API.
+
+..
+
+.. bpo: 22450
+.. date: 9543
+.. nonce: T3Sn_J
+.. section: Library
+
+urllib now includes an ``Accept: */*`` header among the default headers.
+This makes the results of REST API requests more consistent and predictable
+especially when proxy servers are involved.
+
+..
+
+.. bpo: 0
+.. date: 9542
+.. nonce: PVZStR
+.. section: Library
+
+lib2to3.pgen3.driver.load_grammar() now creates a stable cache file between
+runs given the same Grammar.txt input regardless of the hash randomization
+setting.
+
+..
+
+.. bpo: 28005
+.. date: 9541
+.. nonce: oJLK1w
+.. section: Library
+
+Allow ImportErrors in encoding implementation to propagate.
+
+..
+
+.. bpo: 26667
+.. date: 9540
+.. nonce: hWs9wA
+.. section: Library
+
+Support path-like objects in importlib.util.
+
+..
+
+.. bpo: 27570
+.. date: 9539
+.. nonce: pU0Zie
+.. section: Library
+
+Avoid zero-length memcpy() etc calls with null source pointers in the
+"ctypes" and "array" modules.
+
+..
+
+.. bpo: 22233
+.. date: 9538
+.. nonce: uXSN0R
+.. section: Library
+
+Break email header lines *only* on the RFC specified CR and LF characters,
+not on arbitrary unicode line breaks. This also fixes a bug in HTTP header
+parsing.
+
+..
+
+.. bpo: 27331
+.. date: 9537
+.. nonce: akOxfh
+.. section: Library
+
+The email.mime classes now all accept an optional policy keyword.
+
+..
+
+.. bpo: 27988
+.. date: 9536
+.. nonce: VfMzZH
+.. section: Library
+
+Fix email iter_attachments incorrect mutation of payload list.
+
+..
+
+.. bpo: 16113
+.. date: 9535
+.. nonce: jyKRxs
+.. section: Library
+
+Add SHA-3 and SHAKE support to hashlib module.
+
+..
+
+.. bpo: 0
+.. date: 9534
+.. nonce: j7npJi
+.. section: Library
+
+Eliminate a tautological-pointer-compare warning in _scproxy.c.
+
+..
+
+.. bpo: 27776
+.. date: 9533
+.. nonce: dOJcUU
+.. section: Library
+
+The :func:`os.urandom` function does now block on Linux 3.17 and newer until
+the system urandom entropy pool is initialized to increase the security.
+This change is part of the :pep:`524`.
+
+..
+
+.. bpo: 27778
+.. date: 9532
+.. nonce: gvbf3F
+.. section: Library
+
+Expose the Linux ``getrandom()`` syscall as a new :func:`os.getrandom`
+function. This change is part of the :pep:`524`.
+
+..
+
+.. bpo: 27691
+.. date: 9531
+.. nonce: TMYF5_
+.. section: Library
+
+Fix ssl module's parsing of GEN_RID subject alternative name fields in X.509
+certs.
+
+..
+
+.. bpo: 18844
+.. date: 9530
+.. nonce: OZnLOi
+.. section: Library
+
+Add random.choices().
+
+..
+
+.. bpo: 25761
+.. date: 9529
+.. nonce: qd--Ta
+.. section: Library
+
+Improved error reporting about truncated pickle data in C implementation of
+unpickler. UnpicklingError is now raised instead of AttributeError and
+ValueError in some cases.
+
+..
+
+.. bpo: 26798
+.. date: 9528
+.. nonce: he58yl
+.. section: Library
+
+Add BLAKE2 (blake2b and blake2s) to hashlib.
+
+..
+
+.. bpo: 26032
+.. date: 9527
+.. nonce: v5ByZW
+.. section: Library
+
+Optimized globbing in pathlib by using os.scandir(); it is now about 1.5--4
+times faster.
+
+..
+
+.. bpo: 25596
+.. date: 9526
+.. nonce: TFtyjC
+.. section: Library
+
+Optimized glob() and iglob() functions in the glob module; they are now
+about 3--6 times faster.
+
+..
+
+.. bpo: 27928
+.. date: 9525
+.. nonce: vG2f6q
+.. section: Library
+
+Add scrypt (password-based key derivation function) to hashlib module
+(requires OpenSSL 1.1.0).
+
+..
+
+.. bpo: 27850
+.. date: 9524
+.. nonce: kIVQ0m
+.. section: Library
+
+Remove 3DES from ssl module's default cipher list to counter measure sweet32
+attack (CVE-2016-2183).
+
+..
+
+.. bpo: 27766
+.. date: 9523
+.. nonce: WI70Tc
+.. section: Library
+
+Add ChaCha20 Poly1305 to ssl module's default cipher list. (Required OpenSSL
+1.1.0 or LibreSSL).
+
+..
+
+.. bpo: 25387
+.. date: 9522
+.. nonce: -wsV59
+.. section: Library
+
+Check return value of winsound.MessageBeep.
+
+..
+
+.. bpo: 27866
+.. date: 9521
+.. nonce: FM3-BZ
+.. section: Library
+
+Add SSLContext.get_ciphers() method to get a list of all enabled ciphers.
+
+..
+
+.. bpo: 27744
+.. date: 9520
+.. nonce: 2cVMpG
+.. section: Library
+
+Add AF_ALG (Linux Kernel crypto) to socket module.
+
+..
+
+.. bpo: 26470
+.. date: 9519
+.. nonce: QGu_wo
+.. section: Library
+
+Port ssl and hashlib module to OpenSSL 1.1.0.
+
+..
+
+.. bpo: 11620
+.. date: 9518
+.. nonce: JyL-Po
+.. section: Library
+
+Fix support for SND_MEMORY in winsound.PlaySound. Based on a patch by Tim
+Lesher.
+
+..
+
+.. bpo: 11734
+.. date: 9517
+.. nonce: AQoy-q
+.. section: Library
+
+Add support for IEEE 754 half-precision floats to the struct module. Based
+on a patch by Eli Stevens.
+
+..
+
+.. bpo: 27919
+.. date: 9516
+.. nonce: NRqNEW
+.. section: Library
+
+Deprecated ``extra_path`` distribution option in distutils packaging.
+
+..
+
+.. bpo: 23229
+.. date: 9515
+.. nonce: gXhSFh
+.. section: Library
+
+Add new ``cmath`` constants: ``cmath.inf`` and ``cmath.nan`` to match
+``math.inf`` and ``math.nan``, and also ``cmath.infj`` and ``cmath.nanj`` to
+match the format used by complex repr.
+
+..
+
+.. bpo: 27842
+.. date: 9514
+.. nonce: qlhp0-
+.. section: Library
+
+The csv.DictReader now returns rows of type OrderedDict. (Contributed by
+Steve Holden.)
+
+..
+
+.. bpo: 0
+.. date: 9513
+.. nonce: 6TjEgz
+.. section: Library
+
+Remove support for passing a file descriptor to os.access. It never worked
+but previously didn't raise.
+
+..
+
+.. bpo: 12885
+.. date: 9512
+.. nonce: r-IV1g
+.. section: Library
+
+Fix error when distutils encounters symlink.
+
+..
+
+.. bpo: 27881
+.. date: 9511
+.. nonce: fkETd9
+.. section: Library
+
+Fixed possible bugs when setting sqlite3.Connection.isolation_level. Based
+on patch by Xiang Zhang.
+
+..
+
+.. bpo: 27861
+.. date: 9510
+.. nonce: DBYuo9
+.. section: Library
+
+Fixed a crash in sqlite3.Connection.cursor() when a factory creates not a
+cursor. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 19884
+.. date: 9509
+.. nonce: MO8AWH
+.. section: Library
+
+Avoid spurious output on OS X with Gnu Readline.
+
+..
+
+.. bpo: 27706
+.. date: 9508
+.. nonce: ZY67yu
+.. section: Library
+
+Restore deterministic behavior of random.Random().seed() for string seeds
+using seeding version 1. Allows sequences of calls to random() to exactly
+match those obtained in Python 2. Patch by Nofar Schnider.
+
+..
+
+.. bpo: 10513
+.. date: 9507
+.. nonce: tQIQD_
+.. section: Library
+
+Fix a regression in Connection.commit(). Statements should not be reset
+after a commit.
+
+..
+
+.. bpo: 12319
+.. date: 9506
+.. nonce: Wc4oUu
+.. section: Library
+
+Chunked transfer encoding support added to http.client.HTTPConnection
+requests. The urllib.request.AbstractHTTPHandler class does not enforce a
+Content-Length header any more. If a HTTP request has a file or iterable
+body, but no Content-Length header, the library now falls back to use
+chunked transfer-encoding.
+
+..
+
+.. bpo: 0
+.. date: 9505
+.. nonce: cYraeH
+.. section: Library
+
+A new version of typing.py from https://github.com/python/typing: -
+Collection (only for 3.6) (Issue #27598) - Add FrozenSet to __all__
+(upstream #261) - fix crash in _get_type_vars() (upstream #259) - Remove the
+dict constraint in ForwardRef._eval_type (upstream #252)
+
+..
+
+.. bpo: 27832
+.. date: 9504
+.. nonce: hxh6_h
+.. section: Library
+
+Make ``_normalize`` parameter to ``Fraction`` constructor keyword-only, so
+that ``Fraction(2, 3, 4)`` now raises ``TypeError``.
+
+..
+
+.. bpo: 27539
+.. date: 9503
+.. nonce: S4L1cq
+.. section: Library
+
+Fix unnormalised ``Fraction.__pow__`` result in the case of negative
+exponent and negative base.
+
+..
+
+.. bpo: 21718
+.. date: 9502
+.. nonce: FUJd-7
+.. section: Library
+
+cursor.description is now available for queries using CTEs.
+
+..
+
+.. bpo: 27819
+.. date: 9501
+.. nonce: -A_u1x
+.. section: Library
+
+In distutils sdists, simply produce the "gztar" (gzipped tar format)
+distributions on all platforms unless "formats" is supplied.
+
+..
+
+.. bpo: 2466
+.. date: 9500
+.. nonce: VRNlkg
+.. section: Library
+
+posixpath.ismount now correctly recognizes mount points which the user does
+not have permission to access.
+
+..
+
+.. bpo: 9998
+.. date: 9499
+.. nonce: SNIoPr
+.. section: Library
+
+On Linux, ctypes.util.find_library now looks in LD_LIBRARY_PATH for shared
+libraries.
+
+..
+
+.. bpo: 27573
+.. date: 9498
+.. nonce: yuXLnW
+.. section: Library
+
+exit message for code.interact is now configurable.
+
+..
+
+.. bpo: 27930
+.. date: 9497
+.. nonce: BkOfSi
+.. section: Library
+
+Improved behaviour of logging.handlers.QueueListener. Thanks to Paulo
+Andrade and Petr Viktorin for the analysis and patch.
+
+..
+
+.. bpo: 6766
+.. date: 9496
+.. nonce: _zO4cV
+.. section: Library
+
+Distributed reference counting added to multiprocessing to support nesting
+of shared values / proxy objects.
+
+..
+
+.. bpo: 21201
+.. date: 9495
+.. nonce: wLCKiA
+.. section: Library
+
+Improves readability of multiprocessing error message. Thanks to Wojciech
+Walczak for patch.
+
+..
+
+.. bpo: 0
+.. date: 9494
+.. nonce: hgCs-W
+.. section: Library
+
+asyncio: Add set_protocol / get_protocol to Transports.
+
+..
+
+.. bpo: 27456
+.. date: 9493
+.. nonce: lI_IE7
+.. section: Library
+
+asyncio: Set TCP_NODELAY by default.
+
+..
+
+.. bpo: 15308
+.. date: 9492
+.. nonce: zZxn8m
+.. section: IDLE
+
+Add 'interrupt execution' (^C) to Shell menu. Patch by Roger Serwy, updated
+by Bayard Randel.
+
+..
+
+.. bpo: 27922
+.. date: 9491
+.. nonce: UEtEv9
+.. section: IDLE
+
+Stop IDLE tests from 'flashing' gui widgets on the screen.
+
+..
+
+.. bpo: 27891
+.. date: 9490
+.. nonce: 7W5cAj
+.. section: IDLE
+
+Consistently group and sort imports within idlelib modules.
+
+..
+
+.. bpo: 17642
+.. date: 9489
+.. nonce: B0BNOB
+.. section: IDLE
+
+add larger font sizes for classroom projection.
+
+..
+
+.. bpo: 0
+.. date: 9488
+.. nonce: zWZs6o
+.. section: IDLE
+
+Add version to title of IDLE help window.
+
+..
+
+.. bpo: 25564
+.. date: 9487
+.. nonce: GN0p14
+.. section: IDLE
+
+In section on IDLE -- console differences, mention that using exec means
+that __builtins__ is defined for each statement.
+
+..
+
+.. bpo: 27821
+.. date: 9486
+.. nonce: Vzr42u
+.. section: IDLE
+
+Fix 3.6.0a3 regression that prevented custom key sets from being selected
+when no custom theme was defined.
+
+..
+
+.. bpo: 26900
+.. date: 9485
+.. nonce: 0erSIc
+.. section: C API
+
+Excluded underscored names and other private API from limited API.
+
+..
+
+.. bpo: 26027
+.. date: 9484
+.. nonce: 5uVb7n
+.. section: C API
+
+Add support for path-like objects in PyUnicode_FSConverter() &
+PyUnicode_FSDecoder().
+
+..
+
+.. bpo: 27427
+.. date: 9483
+.. nonce: OGhkYQ
+.. section: Tests
+
+Additional tests for the math module. Patch by Francisco Couzo.
+
+..
+
+.. bpo: 27953
+.. date: 9482
+.. nonce: oP3nuf
+.. section: Tests
+
+Skip math and cmath tests that fail on OS X 10.4 due to a poor libm
+implementation of tan.
+
+..
+
+.. bpo: 26040
+.. date: 9481
+.. nonce: RvSU5I
+.. section: Tests
+
+Improve test_math and test_cmath coverage and rigour. Patch by Jeff Allen.
+
+..
+
+.. bpo: 27787
+.. date: 9480
+.. nonce: kf0YAt
+.. section: Tests
+
+Call gc.collect() before checking each test for "dangling threads", since
+the dangling threads are weak references.
+
+..
+
+.. bpo: 27566
+.. date: 9479
+.. nonce: xDWjEb
+.. section: Build
+
+Fix clean target in freeze makefile (patch by Lisa Roach)
+
+..
+
+.. bpo: 27705
+.. date: 9478
+.. nonce: 8C2Ms3
+.. section: Build
+
+Update message in validate_ucrtbase.py
+
+..
+
+.. bpo: 27976
+.. date: 9477
+.. nonce: z0CT-3
+.. section: Build
+
+Deprecate building _ctypes with the bundled copy of libffi on non-OSX UNIX
+platforms.
+
+..
+
+.. bpo: 27983
+.. date: 9476
+.. nonce: jL_1n8
+.. section: Build
+
+Cause lack of llvm-profdata tool when using clang as required for PGO
+linking to be a configure time error rather than make time when
+``--with-optimizations`` is enabled. Also improve our ability to find the
+llvm-profdata tool on MacOS and some Linuxes.
+
+..
+
+.. bpo: 21590
+.. date: 9475
+.. nonce: haPolL
+.. section: Build
+
+Support for DTrace and SystemTap probes.
+
+..
+
+.. bpo: 26307
+.. date: 9474
+.. nonce: Puk2rd
+.. section: Build
+
+The profile-opt build now applies PGO to the built-in modules.
+
+..
+
+.. bpo: 26359
+.. date: 9473
+.. nonce: uxKCqR
+.. section: Build
+
+Add the --with-optimizations flag to turn on LTO and PGO build support when
+available.
+
+..
+
+.. bpo: 27917
+.. date: 9472
+.. nonce: 8V2esX
+.. section: Build
+
+Set platform triplets for Android builds.
+
+..
+
+.. bpo: 25825
+.. date: 9471
+.. nonce: PwGiUI
+.. section: Build
+
+Update references to the $(LIBPL) installation path on AIX. This path was
+changed in 3.2a4.
+
+..
+
+.. bpo: 0
+.. date: 9470
+.. nonce: G27B6T
+.. section: Build
+
+Update OS X installer to use SQLite 3.14.1 and XZ 5.2.2.
+
+..
+
+.. bpo: 21122
+.. date: 9469
+.. nonce: 98ovv8
+.. section: Build
+
+Fix LTO builds on OS X.
+
+..
+
+.. bpo: 17128
+.. date: 9468
+.. nonce: jd3Cll
+.. section: Build
+
+Build OS X installer with a private copy of OpenSSL. Also provide a sample
+Install Certificates command script to install a set of root certificates
+from the third-party certifi module.
+
+..
+
+.. bpo: 27952
+.. date: 9467
+.. nonce: WX9Ufc
+.. section: Tools/Demos
+
+Get Tools/scripts/fixcid.py working with Python 3 and the current "re"
+module, avoid invalid Python backslash escapes, and fix a bug parsing
+escaped C quote signs.
+
+..
+
+.. bpo: 28065
+.. date: 9466
+.. nonce: TUW63o
+.. section: Windows
+
+Update xz dependency to 5.2.2 and build it from source.
+
+..
+
+.. bpo: 25144
+.. date: 9465
+.. nonce: iUha52
+.. section: Windows
+
+Ensures TargetDir is set before continuing with custom install.
+
+..
+
+.. bpo: 1602
+.. date: 9464
+.. nonce: 5Kowx0
+.. section: Windows
+
+Windows console doesn't input or print Unicode (PEP 528)
+
+..
+
+.. bpo: 27781
+.. date: 9463
+.. nonce: 21eQH2
+.. section: Windows
+
+Change file system encoding on Windows to UTF-8 (PEP 529)
+
+..
+
+.. bpo: 27731
+.. date: 9462
+.. nonce: U2HSrC
+.. section: Windows
+
+Opt-out of MAX_PATH on Windows 10
+
+..
+
+.. bpo: 6135
+.. date: 9461
+.. nonce: pACuPJ
+.. section: Windows
+
+Adds encoding and errors parameters to subprocess.
+
+..
+
+.. bpo: 27959
+.. date: 9460
+.. nonce: JamSoC
+.. section: Windows
+
+Adds oem encoding, alias ansi to mbcs, move aliasmbcs to codec lookup.
+
+..
+
+.. bpo: 27982
+.. date: 9459
+.. nonce: xrUa9R
+.. section: Windows
+
+The functions of the winsound module now accept keyword arguments.
+
+..
+
+.. bpo: 20366
+.. date: 9458
+.. nonce: s6b-ut
+.. section: Windows
+
+Build full text search support into SQLite on Windows.
+
+..
+
+.. bpo: 27756
+.. date: 9457
+.. nonce: PDAoGy
+.. section: Windows
+
+Adds new icons for Python files and processes on Windows. Designs by Cherry
+Wang.
+
+..
+
+.. bpo: 27883
+.. date: 9456
+.. nonce: vyOnxj
+.. section: Windows
+
+Update sqlite to 3.14.1.0 on Windows.
--- /dev/null
+.. bpo: 28183
+.. date: 9707
+.. nonce: MJZeNd
+.. release date: 2016-10-10
+.. section: Core and Builtins
+
+Optimize and cleanup dict iteration.
+
+..
+
+.. bpo: 26081
+.. date: 9706
+.. nonce: _x5vjl
+.. section: Core and Builtins
+
+Added C implementation of asyncio.Future. Original patch by Yury Selivanov.
+
+..
+
+.. bpo: 28379
+.. date: 9705
+.. nonce: DuXlco
+.. section: Core and Builtins
+
+Added sanity checks and tests for PyUnicode_CopyCharacters(). Patch by Xiang
+Zhang.
+
+..
+
+.. bpo: 28376
+.. date: 9704
+.. nonce: oPD-5D
+.. section: Core and Builtins
+
+The type of long range iterator is now registered as Iterator. Patch by Oren
+Milman.
+
+..
+
+.. bpo: 28376
+.. date: 9703
+.. nonce: YEy-uG
+.. section: Core and Builtins
+
+Creating instances of range_iterator by calling range_iterator type now is
+deprecated. Patch by Oren Milman.
+
+..
+
+.. bpo: 28376
+.. date: 9702
+.. nonce: fLeHM2
+.. section: Core and Builtins
+
+The constructor of range_iterator now checks that step is not 0. Patch by
+Oren Milman.
+
+..
+
+.. bpo: 26906
+.. date: 9701
+.. nonce: YBjcwI
+.. section: Core and Builtins
+
+Resolving special methods of uninitialized type now causes implicit
+initialization of the type instead of a fail.
+
+..
+
+.. bpo: 18287
+.. date: 9700
+.. nonce: k6jffS
+.. section: Core and Builtins
+
+PyType_Ready() now checks that tp_name is not NULL. Original patch by Niklas
+Koep.
+
+..
+
+.. bpo: 24098
+.. date: 9699
+.. nonce: XqlP_1
+.. section: Core and Builtins
+
+Fixed possible crash when AST is changed in process of compiling it.
+
+..
+
+.. bpo: 28201
+.. date: 9698
+.. nonce: GWUxAy
+.. section: Core and Builtins
+
+Dict reduces possibility of 2nd conflict in hash table when hashes have same
+lower bits.
+
+..
+
+.. bpo: 28350
+.. date: 9697
+.. nonce: 8M5Eg9
+.. section: Core and Builtins
+
+String constants with null character no longer interned.
+
+..
+
+.. bpo: 26617
+.. date: 9696
+.. nonce: Gh5LvN
+.. section: Core and Builtins
+
+Fix crash when GC runs during weakref callbacks.
+
+..
+
+.. bpo: 27942
+.. date: 9695
+.. nonce: ZGuhns
+.. section: Core and Builtins
+
+String constants now interned recursively in tuples and frozensets.
+
+..
+
+.. bpo: 21578
+.. date: 9694
+.. nonce: GI1bhj
+.. section: Core and Builtins
+
+Fixed misleading error message when ImportError called with invalid keyword
+args.
+
+..
+
+.. bpo: 28203
+.. date: 9693
+.. nonce: LRn5vp
+.. section: Core and Builtins
+
+Fix incorrect type in complex(1.0, {2:3}) error message. Patch by Soumya
+Sharma.
+
+..
+
+.. bpo: 28086
+.. date: 9692
+.. nonce: JsQPMQ
+.. section: Core and Builtins
+
+Single var-positional argument of tuple subtype was passed unscathed to the
+C-defined function. Now it is converted to exact tuple.
+
+..
+
+.. bpo: 28214
+.. date: 9691
+.. nonce: zQF8Em
+.. section: Core and Builtins
+
+Now __set_name__ is looked up on the class instead of the instance.
+
+..
+
+.. bpo: 27955
+.. date: 9690
+.. nonce: HC4pZ4
+.. section: Core and Builtins
+
+Fallback on reading /dev/urandom device when the getrandom() syscall fails
+with EPERM, for example when blocked by SECCOMP.
+
+..
+
+.. bpo: 28192
+.. date: 9689
+.. nonce: eR6stU
+.. section: Core and Builtins
+
+Don't import readline in isolated mode.
+
+..
+
+.. bpo: 0
+.. date: 9688
+.. nonce: 9EbOiD
+.. section: Core and Builtins
+
+Upgrade internal unicode databases to Unicode version 9.0.0.
+
+..
+
+.. bpo: 28131
+.. date: 9687
+.. nonce: owq0wW
+.. section: Core and Builtins
+
+Fix a regression in zipimport's compile_source(). zipimport should use the
+same optimization level as the interpreter.
+
+..
+
+.. bpo: 28126
+.. date: 9686
+.. nonce: Qf6-uQ
+.. section: Core and Builtins
+
+Replace Py_MEMCPY with memcpy(). Visual Studio can properly optimize
+memcpy().
+
+..
+
+.. bpo: 28120
+.. date: 9685
+.. nonce: e5xc1i
+.. section: Core and Builtins
+
+Fix dict.pop() for splitted dictionary when trying to remove a "pending key"
+(Not yet inserted in split-table). Patch by Xiang Zhang.
+
+..
+
+.. bpo: 26182
+.. date: 9684
+.. nonce: jYlqTO
+.. section: Core and Builtins
+
+Raise DeprecationWarning when async and await keywords are used as
+variable/attribute/class/function name.
+
+..
+
+.. bpo: 27998
+.. date: 9683
+.. nonce: CPhy4H
+.. section: Library
+
+Fixed bytes path support in os.scandir() on Windows. Patch by Eryk Sun.
+
+..
+
+.. bpo: 28317
+.. date: 9682
+.. nonce: LgHleA
+.. section: Library
+
+The disassembler now decodes FORMAT_VALUE argument.
+
+..
+
+.. bpo: 26293
+.. date: 9681
+.. nonce: 2mjvwX
+.. section: Library
+
+Fixed writing ZIP files that starts not from the start of the file. Offsets
+in ZIP file now are relative to the start of the archive in conforming to
+the specification.
+
+..
+
+.. bpo: 28380
+.. date: 9680
+.. nonce: jKPMzH
+.. section: Library
+
+unittest.mock Mock autospec functions now properly support assert_called,
+assert_not_called, and assert_called_once.
+
+..
+
+.. bpo: 27181
+.. date: 9679
+.. nonce: SQyDpC
+.. section: Library
+
+remove statistics.geometric_mean and defer until 3.7.
+
+..
+
+.. bpo: 28229
+.. date: 9678
+.. nonce: BKAxcS
+.. section: Library
+
+lzma module now supports pathlib.
+
+..
+
+.. bpo: 28321
+.. date: 9677
+.. nonce: bQ-IIX
+.. section: Library
+
+Fixed writing non-BMP characters with binary format in plistlib.
+
+..
+
+.. bpo: 28225
+.. date: 9676
+.. nonce: 6N28nu
+.. section: Library
+
+bz2 module now supports pathlib. Initial patch by Ethan Furman.
+
+..
+
+.. bpo: 28227
+.. date: 9675
+.. nonce: 7lUz8i
+.. section: Library
+
+gzip now supports pathlib. Patch by Ethan Furman.
+
+..
+
+.. bpo: 27358
+.. date: 9674
+.. nonce: t288Iv
+.. section: Library
+
+Optimized merging var-keyword arguments and improved error message when
+passing a non-mapping as a var-keyword argument.
+
+..
+
+.. bpo: 28257
+.. date: 9673
+.. nonce: SVD_IH
+.. section: Library
+
+Improved error message when passing a non-iterable as a var-positional
+argument. Added opcode BUILD_TUPLE_UNPACK_WITH_CALL.
+
+..
+
+.. bpo: 28322
+.. date: 9672
+.. nonce: l9hzap
+.. section: Library
+
+Fixed possible crashes when unpickle itertools objects from incorrect pickle
+data. Based on patch by John Leitch.
+
+..
+
+.. bpo: 28228
+.. date: 9671
+.. nonce: 1qBwdM
+.. section: Library
+
+imghdr now supports pathlib.
+
+..
+
+.. bpo: 28226
+.. date: 9670
+.. nonce: nMXiwU
+.. section: Library
+
+compileall now supports pathlib.
+
+..
+
+.. bpo: 28314
+.. date: 9669
+.. nonce: N7YrkN
+.. section: Library
+
+Fix function declaration (C flags) for the getiterator() method of
+xml.etree.ElementTree.Element.
+
+..
+
+.. bpo: 28148
+.. date: 9668
+.. nonce: Flzndx
+.. section: Library
+
+Stop using localtime() and gmtime() in the time module.
+Introduced platform independent _PyTime_localtime API that is similar to
+POSIX localtime_r, but available on all platforms. Patch by Ed Schouten.
+
+..
+
+.. bpo: 28253
+.. date: 9667
+.. nonce: aLfmhe
+.. section: Library
+
+Fixed calendar functions for extreme months: 0001-01 and 9999-12.
+Methods itermonthdays() and itermonthdays2() are reimplemented so that they
+don't call itermonthdates() which can cause datetime.date under/overflow.
+
+..
+
+.. bpo: 28275
+.. date: 9666
+.. nonce: EhWIsz
+.. section: Library
+
+Fixed possible use after free in the decompress() methods of the
+LZMADecompressor and BZ2Decompressor classes. Original patch by John Leitch.
+
+..
+
+.. bpo: 27897
+.. date: 9665
+.. nonce: I0Ppmx
+.. section: Library
+
+Fixed possible crash in sqlite3.Connection.create_collation() if pass
+invalid string-like object as a name. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 18844
+.. date: 9664
+.. nonce: fQsEdn
+.. section: Library
+
+random.choices() now has k as a keyword-only argument to improve the
+readability of common cases and come into line with the signature used in
+other languages.
+
+..
+
+.. bpo: 18893
+.. date: 9663
+.. nonce: osiX5c
+.. section: Library
+
+Fix invalid exception handling in Lib/ctypes/macholib/dyld.py. Patch by
+Madison May.
+
+..
+
+.. bpo: 27611
+.. date: 9662
+.. nonce: A_ArH_
+.. section: Library
+
+Fixed support of default root window in the tkinter.tix module. Added the
+master parameter in the DisplayStyle constructor.
+
+..
+
+.. bpo: 27348
+.. date: 9661
+.. nonce: tDx7Vw
+.. section: Library
+
+In the traceback module, restore the formatting of exception messages like
+"Exception: None". This fixes a regression introduced in 3.5a2.
+
+..
+
+.. bpo: 25651
+.. date: 9660
+.. nonce: 3UhyPo
+.. section: Library
+
+Allow falsy values to be used for msg parameter of subTest().
+
+..
+
+.. bpo: 27778
+.. date: 9659
+.. nonce: Yyo1aP
+.. section: Library
+
+Fix a memory leak in os.getrandom() when the getrandom() is interrupted by a
+signal and a signal handler raises a Python exception.
+
+..
+
+.. bpo: 28200
+.. date: 9658
+.. nonce: 4IEbr7
+.. section: Library
+
+Fix memory leak on Windows in the os module (fix path_converter() function).
+
+..
+
+.. bpo: 25400
+.. date: 9657
+.. nonce: d9Qn0E
+.. section: Library
+
+RobotFileParser now correctly returns default values for crawl_delay and
+request_rate. Initial patch by Peter Wirtz.
+
+..
+
+.. bpo: 27932
+.. date: 9656
+.. nonce: mtgl-6
+.. section: Library
+
+Prevent memory leak in win32_ver().
+
+..
+
+.. bpo: 0
+.. date: 9655
+.. nonce: iPpjqX
+.. section: Library
+
+Fix UnboundLocalError in socket._sendfile_use_sendfile.
+
+..
+
+.. bpo: 28075
+.. date: 9654
+.. nonce: aLiUs9
+.. section: Library
+
+Check for ERROR_ACCESS_DENIED in Windows implementation of os.stat(). Patch
+by Eryk Sun.
+
+..
+
+.. bpo: 22493
+.. date: 9653
+.. nonce: Mv_hZf
+.. section: Library
+
+Warning message emitted by using inline flags in the middle of regular
+expression now contains a (truncated) regex pattern. Patch by Tim Graham.
+
+..
+
+.. bpo: 25270
+.. date: 9652
+.. nonce: jrZruM
+.. section: Library
+
+Prevent codecs.escape_encode() from raising SystemError when an empty
+bytestring is passed.
+
+..
+
+.. bpo: 28181
+.. date: 9651
+.. nonce: NGc4Yv
+.. section: Library
+
+Get antigravity over HTTPS. Patch by Kaartic Sivaraam.
+
+..
+
+.. bpo: 25895
+.. date: 9650
+.. nonce: j92qoQ
+.. section: Library
+
+Enable WebSocket URL schemes in urllib.parse.urljoin. Patch by Gergely Imreh
+and Markus Holtermann.
+
+..
+
+.. bpo: 28114
+.. date: 9649
+.. nonce: gmFXsA
+.. section: Library
+
+Fix a crash in parse_envlist() when env contains byte strings. Patch by Eryk
+Sun.
+
+..
+
+.. bpo: 27599
+.. date: 9648
+.. nonce: itvm8T
+.. section: Library
+
+Fixed buffer overrun in binascii.b2a_qp() and binascii.a2b_qp().
+
+..
+
+.. bpo: 27906
+.. date: 9647
+.. nonce: TBBXrv
+.. section: Library
+
+Fix socket accept exhaustion during high TCP traffic. Patch by Kevin Conway.
+
+..
+
+.. bpo: 28174
+.. date: 9646
+.. nonce: CV1UdI
+.. section: Library
+
+Handle when SO_REUSEPORT isn't properly supported. Patch by Seth Michael
+Larson.
+
+..
+
+.. bpo: 26654
+.. date: 9645
+.. nonce: XtzTE9
+.. section: Library
+
+Inspect functools.partial in asyncio.Handle.__repr__. Patch by iceboy.
+
+..
+
+.. bpo: 26909
+.. date: 9644
+.. nonce: ASiakT
+.. section: Library
+
+Fix slow pipes IO in asyncio. Patch by INADA Naoki.
+
+..
+
+.. bpo: 28176
+.. date: 9643
+.. nonce: sU8R6L
+.. section: Library
+
+Fix callbacks race in asyncio.SelectorLoop.sock_connect.
+
+..
+
+.. bpo: 27759
+.. date: 9642
+.. nonce: qpMDGq
+.. section: Library
+
+Fix selectors incorrectly retain invalid file descriptors. Patch by Mark
+Williams.
+
+..
+
+.. bpo: 28368
+.. date: 9641
+.. nonce: fGl9y4
+.. section: Library
+
+Refuse monitoring processes if the child watcher has no loop attached. Patch
+by Vincent Michel.
+
+..
+
+.. bpo: 28369
+.. date: 9640
+.. nonce: 8DTANe
+.. section: Library
+
+Raise RuntimeError when transport's FD is used with add_reader, add_writer,
+etc.
+
+..
+
+.. bpo: 28370
+.. date: 9639
+.. nonce: 18jBuZ
+.. section: Library
+
+Speedup asyncio.StreamReader.readexactly. Patch by Коренберг Марк.
+
+..
+
+.. bpo: 28371
+.. date: 9638
+.. nonce: U9Zqdk
+.. section: Library
+
+Deprecate passing asyncio.Handles to run_in_executor.
+
+..
+
+.. bpo: 28372
+.. date: 9637
+.. nonce: njcIPk
+.. section: Library
+
+Fix asyncio to support formatting of non-python coroutines.
+
+..
+
+.. bpo: 28399
+.. date: 9636
+.. nonce: QKIqRX
+.. section: Library
+
+Remove UNIX socket from FS before binding. Patch by Коренберг Марк.
+
+..
+
+.. bpo: 27972
+.. date: 9635
+.. nonce: ZK-GFm
+.. section: Library
+
+Prohibit Tasks to await on themselves.
+
+..
+
+.. bpo: 28402
+.. date: 9634
+.. nonce: v9zETJ
+.. section: Windows
+
+Adds signed catalog files for stdlib on Windows.
+
+..
+
+.. bpo: 28333
+.. date: 9633
+.. nonce: KnpeO4
+.. section: Windows
+
+Enables Unicode for ps1/ps2 and input() prompts. (Patch by Eryk Sun)
+
+..
+
+.. bpo: 28251
+.. date: 9632
+.. nonce: tR_AFs
+.. section: Windows
+
+Improvements to help manuals on Windows.
+
+..
+
+.. bpo: 28110
+.. date: 9631
+.. nonce: cnkP5F
+.. section: Windows
+
+launcher.msi has different product codes between 32-bit and 64-bit
+
+..
+
+.. bpo: 28161
+.. date: 9630
+.. nonce: hF91LI
+.. section: Windows
+
+Opening CON for write access fails
+
+..
+
+.. bpo: 28162
+.. date: 9629
+.. nonce: 3FHPVD
+.. section: Windows
+
+WindowsConsoleIO readall() fails if first line starts with Ctrl+Z
+
+..
+
+.. bpo: 28163
+.. date: 9628
+.. nonce: -DUgJw
+.. section: Windows
+
+WindowsConsoleIO fileno() passes wrong flags to _open_osfhandle
+
+..
+
+.. bpo: 28164
+.. date: 9627
+.. nonce: 5MfN0J
+.. section: Windows
+
+_PyIO_get_console_type fails for various paths
+
+..
+
+.. bpo: 28137
+.. date: 9626
+.. nonce: C1uvzY
+.. section: Windows
+
+Renames Windows path file to ._pth
+
+..
+
+.. bpo: 28138
+.. date: 9625
+.. nonce: pNdv64
+.. section: Windows
+
+Windows ._pth file should allow import site
+
+..
+
+.. bpo: 28426
+.. date: 9624
+.. nonce: zPwvbI
+.. section: C API
+
+Deprecated undocumented functions PyUnicode_AsEncodedObject(),
+PyUnicode_AsDecodedObject(), PyUnicode_AsDecodedUnicode() and
+PyUnicode_AsEncodedUnicode().
+
+..
+
+.. bpo: 28258
+.. date: 9623
+.. nonce: iKtAHd
+.. section: Build
+
+Fixed build with Estonian locale (python-config and distclean targets in
+Makefile). Patch by Arfrever Frehtes Taifersar Arahesis.
+
+..
+
+.. bpo: 26661
+.. date: 9622
+.. nonce: Z_HNbs
+.. section: Build
+
+setup.py now detects system libffi with multiarch wrapper.
+
+..
+
+.. bpo: 15819
+.. date: 9621
+.. nonce: QVDr3E
+.. section: Build
+
+Remove redundant include search directory option for building outside the
+source tree.
+
+..
+
+.. bpo: 28217
+.. date: 9620
+.. nonce: Y37OKV
+.. section: Tests
+
+Adds _testconsole module to test console input.
--- /dev/null
+.. bpo: 28128
+.. date: 9744
+.. nonce: Lc2sFu
+.. release date: 2016-10-31
+.. section: Core and Builtins
+
+Deprecation warning for invalid str and byte escape sequences now prints
+better information about where the error occurs. Patch by Serhiy Storchaka
+and Eric Smith.
+
+..
+
+.. bpo: 28509
+.. date: 9743
+.. nonce: _Fa4Uq
+.. section: Core and Builtins
+
+dict.update() no longer allocate unnecessary large memory.
+
+..
+
+.. bpo: 28426
+.. date: 9742
+.. nonce: E_quyK
+.. section: Core and Builtins
+
+Fixed potential crash in PyUnicode_AsDecodedObject() in debug build.
+
+..
+
+.. bpo: 28517
+.. date: 9741
+.. nonce: ExPkm9
+.. section: Core and Builtins
+
+Fixed of-by-one error in the peephole optimizer that caused keeping
+unreachable code.
+
+..
+
+.. bpo: 28214
+.. date: 9740
+.. nonce: 6ECJox
+.. section: Core and Builtins
+
+Improved exception reporting for problematic __set_name__ attributes.
+
+..
+
+.. bpo: 23782
+.. date: 9739
+.. nonce: lonDzj
+.. section: Core and Builtins
+
+Fixed possible memory leak in _PyTraceback_Add() and exception loss in
+PyTraceBack_Here().
+
+..
+
+.. bpo: 28471
+.. date: 9738
+.. nonce: Vd5pv7
+.. section: Core and Builtins
+
+Fix "Python memory allocator called without holding the GIL" crash in
+socket.setblocking.
+
+..
+
+.. bpo: 27517
+.. date: 9737
+.. nonce: 1CYM8A
+.. section: Library
+
+LZMA compressor and decompressor no longer raise exceptions if given empty
+data twice. Patch by Benjamin Fogle.
+
+..
+
+.. bpo: 28549
+.. date: 9736
+.. nonce: ShnM2y
+.. section: Library
+
+Fixed segfault in curses's addch() with ncurses6.
+
+..
+
+.. bpo: 28449
+.. date: 9735
+.. nonce: 5JK6ES
+.. section: Library
+
+tarfile.open() with mode "r" or "r:" now tries to open a tar file with
+compression before trying to open it without compression. Otherwise it had
+50% chance failed with ignore_zeros=True.
+
+..
+
+.. bpo: 23262
+.. date: 9734
+.. nonce: 6EVB7N
+.. section: Library
+
+The webbrowser module now supports Firefox 36+ and derived browsers. Based
+on patch by Oleg Broytman.
+
+..
+
+.. bpo: 27939
+.. date: 9733
+.. nonce: mTfADV
+.. section: Library
+
+Fixed bugs in tkinter.ttk.LabeledScale and tkinter.Scale caused by
+representing the scale as float value internally in Tk. tkinter.IntVar now
+works if float value is set to underlying Tk variable.
+
+..
+
+.. bpo: 18844
+.. date: 9732
+.. nonce: oif1-H
+.. section: Library
+
+The various ways of specifying weights for random.choices() now produce the
+same result sequences.
+
+..
+
+.. bpo: 28255
+.. date: 9731
+.. nonce: _ZH4wm
+.. section: Library
+
+calendar.TextCalendar().prmonth() no longer prints a space at the start of
+new line after printing a month's calendar. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 20491
+.. date: 9730
+.. nonce: ObgnQ2
+.. section: Library
+
+The textwrap.TextWrapper class now honors non-breaking spaces. Based on
+patch by Kaarle Ritvanen.
+
+..
+
+.. bpo: 28353
+.. date: 9729
+.. nonce: sKGbLL
+.. section: Library
+
+os.fwalk() no longer fails on broken links.
+
+..
+
+.. bpo: 28430
+.. date: 9728
+.. nonce: 4MiEYT
+.. section: Library
+
+Fix iterator of C implemented asyncio.Future doesn't accept non-None value
+is passed to it.send(val).
+
+..
+
+.. bpo: 27025
+.. date: 9727
+.. nonce: foAViS
+.. section: Library
+
+Generated names for Tkinter widgets now start by the "!" prefix for
+readability.
+
+..
+
+.. bpo: 25464
+.. date: 9726
+.. nonce: HDUTCu
+.. section: Library
+
+Fixed HList.header_exists() in tkinter.tix module by addin a workaround to
+Tix library bug.
+
+..
+
+.. bpo: 28488
+.. date: 9725
+.. nonce: TgO112
+.. section: Library
+
+shutil.make_archive() no longer adds entry "./" to ZIP archive.
+
+..
+
+.. bpo: 25953
+.. date: 9724
+.. nonce: EKKJAQ
+.. section: Library
+
+re.sub() now raises an error for invalid numerical group reference in
+replacement template even if the pattern is not found in the string. Error
+message for invalid group reference now includes the group index and the
+position of the reference. Based on patch by SilentGhost.
+
+..
+
+.. bpo: 18219
+.. date: 9723
+.. nonce: 1ANQN1
+.. section: Library
+
+Optimize csv.DictWriter for large number of columns. Patch by Mariatta
+Wijaya.
+
+..
+
+.. bpo: 28448
+.. date: 9722
+.. nonce: 5bduWe
+.. section: Library
+
+Fix C implemented asyncio.Future didn't work on Windows.
+
+..
+
+.. bpo: 28480
+.. date: 9721
+.. nonce: 9lHw6m
+.. section: Library
+
+Fix error building socket module when multithreading is disabled.
+
+..
+
+.. bpo: 24452
+.. date: 9720
+.. nonce: m9Kyg3
+.. section: Library
+
+Make webbrowser support Chrome on Mac OS X.
+
+..
+
+.. bpo: 20766
+.. date: 9719
+.. nonce: 4kvCzx
+.. section: Library
+
+Fix references leaked by pdb in the handling of SIGINT handlers.
+
+..
+
+.. bpo: 28492
+.. date: 9718
+.. nonce: pFRLQE
+.. section: Library
+
+Fix how StopIteration exception is raised in _asyncio.Future.
+
+..
+
+.. bpo: 28500
+.. date: 9717
+.. nonce: NINKzZ
+.. section: Library
+
+Fix asyncio to handle async gens GC from another thread.
+
+..
+
+.. bpo: 26923
+.. date: 9716
+.. nonce: 8dh3AV
+.. section: Library
+
+Fix asyncio.Gather to refuse being cancelled once all children are done.
+Patch by Johannes Ebke.
+
+..
+
+.. bpo: 26796
+.. date: 9715
+.. nonce: TZyAfJ
+.. section: Library
+
+Don't configure the number of workers for default threadpool executor.
+Initial patch by Hans Lawrenz.
+
+..
+
+.. bpo: 28544
+.. date: 9714
+.. nonce: KD1oFP
+.. section: Library
+
+Implement asyncio.Task in C.
+
+..
+
+.. bpo: 28522
+.. date: 9713
+.. nonce: XHMQa7
+.. section: Windows
+
+Fixes mishandled buffer reallocation in getpathp.c
+
+..
+
+.. bpo: 28444
+.. date: 9712
+.. nonce: zkc9nT
+.. section: Build
+
+Fix missing extensions modules when cross compiling.
+
+..
+
+.. bpo: 28208
+.. date: 9711
+.. nonce: DtoP1i
+.. section: Build
+
+Update Windows build and OS X installers to use SQLite 3.14.2.
+
+..
+
+.. bpo: 28248
+.. date: 9710
+.. nonce: KY_-en
+.. section: Build
+
+Update Windows build and OS X installers to use OpenSSL 1.0.2j.
+
+..
+
+.. bpo: 26944
+.. date: 9709
+.. nonce: ChZ_BO
+.. section: Tests
+
+Fix test_posix for Android where 'id -G' is entirely wrong or missing the
+effective gid.
+
+..
+
+.. bpo: 28409
+.. date: 9708
+.. nonce: Q2IlxJ
+.. section: Tests
+
+regrtest: fix the parser of command line arguments.
--- /dev/null
+.. bpo: 28532
+.. date: 9778
+.. nonce: KEYJny
+.. release date: 2016-11-21
+.. section: Core and Builtins
+
+Show sys.version when -V option is supplied twice.
+
+..
+
+.. bpo: 27100
+.. date: 9777
+.. nonce: poVjXq
+.. section: Core and Builtins
+
+The with-statement now checks for __enter__ before it checks for __exit__.
+This gives less confusing error messages when both methods are missing.
+Patch by Jonathan Ellington.
+
+..
+
+.. bpo: 28746
+.. date: 9776
+.. nonce: r5MXdB
+.. section: Core and Builtins
+
+Fix the set_inheritable() file descriptor method on platforms that do not
+have the ioctl FIOCLEX and FIONCLEX commands.
+
+..
+
+.. bpo: 26920
+.. date: 9775
+.. nonce: 1URwGb
+.. section: Core and Builtins
+
+Fix not getting the locale's charset upon initializing the interpreter, on
+platforms that do not have langinfo.
+
+..
+
+.. bpo: 28648
+.. date: 9774
+.. nonce: z7B52W
+.. section: Core and Builtins
+
+Fixed crash in Py_DecodeLocale() in debug build on Mac OS X when decode
+astral characters. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 19398
+.. date: 9773
+.. nonce: RYbEGH
+.. section: Core and Builtins
+
+Extra slash no longer added to sys.path components in case of empty
+compile-time PYTHONPATH components.
+
+..
+
+.. bpo: 28665
+.. date: 9772
+.. nonce: v4nx86
+.. section: Core and Builtins
+
+Improve speed of the STORE_DEREF opcode by 40%.
+
+..
+
+.. bpo: 28583
+.. date: 9771
+.. nonce: F-QAx1
+.. section: Core and Builtins
+
+PyDict_SetDefault didn't combine split table when needed. Patch by Xiang
+Zhang.
+
+..
+
+.. bpo: 27243
+.. date: 9770
+.. nonce: 61E6K5
+.. section: Core and Builtins
+
+Change PendingDeprecationWarning -> DeprecationWarning. As it was agreed in
+the issue, __aiter__ returning an awaitable should result in
+PendingDeprecationWarning in 3.5 and in DeprecationWarning in 3.6.
+
+..
+
+.. bpo: 26182
+.. date: 9769
+.. nonce: a8JXK2
+.. section: Core and Builtins
+
+Fix a refleak in code that raises DeprecationWarning.
+
+..
+
+.. bpo: 28721
+.. date: 9768
+.. nonce: BO9BUF
+.. section: Core and Builtins
+
+Fix asynchronous generators aclose() and athrow() to handle
+StopAsyncIteration propagation properly.
+
+..
+
+.. bpo: 28752
+.. date: 9767
+.. nonce: Q-4oRE
+.. section: Library
+
+Restored the __reduce__() methods of datetime objects.
+
+..
+
+.. bpo: 28727
+.. date: 9766
+.. nonce: ubZP_b
+.. section: Library
+
+Regular expression patterns, _sre.SRE_Pattern objects created by
+re.compile(), become comparable (only x==y and x!=y operators). This change
+should fix the issue #18383: don't duplicate warning filters when the
+warnings module is reloaded (thing usually only done in unit tests).
+
+..
+
+.. bpo: 20572
+.. date: 9765
+.. nonce: lGXaH9
+.. section: Library
+
+The subprocess.Popen.wait method's undocumented endtime parameter now raises
+a DeprecationWarning.
+
+..
+
+.. bpo: 25659
+.. date: 9764
+.. nonce: lE2IlT
+.. section: Library
+
+In ctypes, prevent a crash calling the from_buffer() and from_buffer_copy()
+methods on abstract classes like Array.
+
+..
+
+.. bpo: 19717
+.. date: 9763
+.. nonce: HXCAIz
+.. section: Library
+
+Makes Path.resolve() succeed on paths that do not exist. Patch by Vajrasky
+Kok
+
+..
+
+.. bpo: 28563
+.. date: 9762
+.. nonce: iweEiw
+.. section: Library
+
+Fixed possible DoS and arbitrary code execution when handle plural form
+selections in the gettext module. The expression parser now supports exact
+syntax supported by GNU gettext.
+
+..
+
+.. bpo: 28387
+.. date: 9761
+.. nonce: 1clJu7
+.. section: Library
+
+Fixed possible crash in _io.TextIOWrapper deallocator when the garbage
+collector is invoked in other thread. Based on patch by Sebastian Cufre.
+
+..
+
+.. bpo: 28600
+.. date: 9760
+.. nonce: wMVrjN
+.. section: Library
+
+Optimize loop.call_soon.
+
+..
+
+.. bpo: 28613
+.. date: 9759
+.. nonce: sqUPrv
+.. section: Library
+
+Fix get_event_loop() return the current loop if called from
+coroutines/callbacks.
+
+..
+
+.. bpo: 28634
+.. date: 9758
+.. nonce: YlRydz
+.. section: Library
+
+Fix asyncio.isfuture() to support unittest.Mock.
+
+..
+
+.. bpo: 26081
+.. date: 9757
+.. nonce: 2Y8-a9
+.. section: Library
+
+Fix refleak in _asyncio.Future.__iter__().throw.
+
+..
+
+.. bpo: 28639
+.. date: 9756
+.. nonce: WUPo1o
+.. section: Library
+
+Fix inspect.isawaitable to always return bool Patch by Justin Mayfield.
+
+..
+
+.. bpo: 28652
+.. date: 9755
+.. nonce: f5M8FG
+.. section: Library
+
+Make loop methods reject socket kinds they do not support.
+
+..
+
+.. bpo: 28653
+.. date: 9754
+.. nonce: S5bA9i
+.. section: Library
+
+Fix a refleak in functools.lru_cache.
+
+..
+
+.. bpo: 28703
+.. date: 9753
+.. nonce: CRLTJc
+.. section: Library
+
+Fix asyncio.iscoroutinefunction to handle Mock objects.
+
+..
+
+.. bpo: 28704
+.. date: 9752
+.. nonce: EFWBII
+.. section: Library
+
+Fix create_unix_server to support Path-like objects (PEP 519).
+
+..
+
+.. bpo: 28720
+.. date: 9751
+.. nonce: Fsz-Lf
+.. section: Library
+
+Add collections.abc.AsyncGenerator.
+
+..
+
+.. bpo: 28513
+.. date: 9750
+.. nonce: L3joAz
+.. section: Documentation
+
+Documented command-line interface of zipfile.
+
+..
+
+.. bpo: 28666
+.. date: 9749
+.. nonce: RtTk-4
+.. section: Tests
+
+Now test.support.rmtree is able to remove unwritable or unreadable
+directories.
+
+..
+
+.. bpo: 23839
+.. date: 9748
+.. nonce: zsT_L9
+.. section: Tests
+
+Various caches now are cleared before running every test file.
+
+..
+
+.. bpo: 10656
+.. date: 9747
+.. nonce: pR8FFU
+.. section: Build
+
+Fix out-of-tree building on AIX. Patch by Tristan Carel and Michael
+Haubenwallner.
+
+..
+
+.. bpo: 26359
+.. date: 9746
+.. nonce: CLz6qy
+.. section: Build
+
+Rename --with-optimiations to --enable-optimizations.
+
+..
+
+.. bpo: 28676
+.. date: 9745
+.. nonce: Wxf6Ds
+.. section: Build
+
+Prevent missing 'getentropy' declaration warning on macOS. Patch by Gareth
+Rees.
--- /dev/null
+.. bpo: 23722
+.. date: 9790
+.. nonce: e8BH5h
+.. release date: 2016-12-06
+.. section: Core and Builtins
+
+Rather than silently producing a class that doesn't support zero-argument
+``super()`` in methods, failing to pass the new ``__classcell__`` namespace
+entry up to ``type.__new__`` now results in a ``DeprecationWarning`` and a
+class that supports zero-argument ``super()``.
+
+..
+
+.. bpo: 28797
+.. date: 9789
+.. nonce: _A0_Z5
+.. section: Core and Builtins
+
+Modifying the class __dict__ inside the __set_name__ method of a descriptor
+that is used inside that class no longer prevents calling the __set_name__
+method of other descriptors.
+
+..
+
+.. bpo: 28782
+.. date: 9788
+.. nonce: foJV_E
+.. section: Core and Builtins
+
+Fix a bug in the implementation ``yield from`` when checking if the next
+instruction is YIELD_FROM. Regression introduced by WORDCODE (issue #26647).
+
+..
+
+.. bpo: 27030
+.. date: 9787
+.. nonce: 88FOrz
+.. section: Library
+
+Unknown escapes in re.sub() replacement template are allowed again. But
+they still are deprecated and will be disabled in 3.7.
+
+..
+
+.. bpo: 28835
+.. date: 9786
+.. nonce: Fv7Dr1
+.. section: Library
+
+Fix a regression introduced in warnings.catch_warnings(): call
+warnings.showwarning() if it was overridden inside the context manager.
+
+..
+
+.. bpo: 27172
+.. date: 9785
+.. nonce: mVKfLT
+.. section: Library
+
+To assist with upgrades from 2.7, the previously documented deprecation of
+``inspect.getfullargspec()`` has been reversed. This decision may be
+revisited again after the Python 2.7 branch is no longer officially
+supported.
+
+..
+
+.. bpo: 26273
+.. date: 9784
+.. nonce: ilNIWN
+.. section: Library
+
+Add new :data:`socket.TCP_CONGESTION` (Linux 2.6.13) and
+:data:`socket.TCP_USER_TIMEOUT` (Linux 2.6.37) constants. Patch written by
+Omar Sandoval.
+
+..
+
+.. bpo: 24142
+.. date: 9783
+.. nonce: IrZnFs
+.. section: Library
+
+Reading a corrupt config file left configparser in an invalid state.
+Original patch by Florian Höch.
+
+..
+
+.. bpo: 28843
+.. date: 9782
+.. nonce: O7M0LE
+.. section: Library
+
+Fix asyncio C Task to handle exceptions __traceback__.
+
+..
+
+.. bpo: 28808
+.. date: 9781
+.. nonce: A03X6r
+.. section: C API
+
+PyUnicode_CompareWithASCIIString() now never raises exceptions.
+
+..
+
+.. bpo: 23722
+.. date: 9780
+.. nonce: 6HX6fk
+.. section: Documentation
+
+The data model reference and the porting section in the What's New guide now
+cover the additional ``__classcell__`` handling needed for custom
+metaclasses to fully support :pep:`487` and zero-argument ``super()``.
+
+..
+
+.. bpo: 28023
+.. date: 9779
+.. nonce: 4gzSGp
+.. section: Tools/Demos
+
+Fix python-gdb.py didn't support new dict implementation.
--- /dev/null
+.. bpo: 28147
+.. date: 9795
+.. nonce: CnK_xf
+.. release date: 2016-12-16
+.. section: Core and Builtins
+
+Fix a memory leak in split-table dictionaries: setattr() must not convert
+combined table into split table. Patch written by INADA Naoki.
+
+..
+
+.. bpo: 28990
+.. date: 9794
+.. nonce: m8xRMJ
+.. section: Core and Builtins
+
+Fix asyncio SSL hanging if connection is closed before handshake is
+completed. (Patch by HoHo-Ho)
+
+..
+
+.. bpo: 28770
+.. date: 9793
+.. nonce: N9GQsz
+.. section: Tools/Demos
+
+Fix python-gdb.py for fastcalls.
+
+..
+
+.. bpo: 28896
+.. date: 9792
+.. nonce: ymAbmH
+.. section: Windows
+
+Deprecate WindowsRegistryFinder.
+
+..
+
+.. bpo: 28898
+.. date: 9791
+.. nonce: YGUd_i
+.. section: Build
+
+Prevent gdb build errors due to HAVE_LONG_LONG redefinition.
--- /dev/null
+.. bpo: 29723
+.. date: 9895
+.. nonce: M5omgP
+.. release date: 2017-03-21
+.. section: Core and Builtins
+
+The ``sys.path[0]`` initialization change for bpo-29139 caused a regression
+by revealing an inconsistency in how sys.path is initialized when executing
+``__main__`` from a zipfile, directory, or other import location. The
+interpreter now consistently avoids ever adding the import location's parent
+directory to ``sys.path``, and ensures no other ``sys.path`` entries are
+inadvertently modified when inserting the import location named on the
+command line.
+
+..
+
+.. bpo: 27593
+.. date: 9894
+.. nonce: nk7Etn
+.. section: Build
+
+fix format of git information used in sys.version
+
+..
+
+.. bpo: 0
+.. date: 9893
+.. nonce: usKKNQ
+.. section: Build
+
+Fix incompatible comment in python.h
--- /dev/null
+.. bpo: 28893
+.. date: 9892
+.. nonce: WTKnpj
+.. release date: 2017-03-04
+.. section: Core and Builtins
+
+Set correct __cause__ for errors about invalid awaitables returned from
+__aiter__ and __anext__.
+
+..
+
+.. bpo: 29683
+.. date: 9891
+.. nonce: G5iS-P
+.. section: Core and Builtins
+
+Fixes to memory allocation in _PyCode_SetExtra. Patch by Brian Coleman.
+
+..
+
+.. bpo: 29684
+.. date: 9890
+.. nonce: wTgEoh
+.. section: Core and Builtins
+
+Fix minor regression of PyEval_CallObjectWithKeywords. It should raise
+TypeError when kwargs is not a dict. But it might cause segv when args=NULL
+and kwargs is not a dict.
+
+..
+
+.. bpo: 28598
+.. date: 9889
+.. nonce: QxbzQn
+.. section: Core and Builtins
+
+Support __rmod__ for subclasses of str being called before str.__mod__.
+Patch by Martijn Pieters.
+
+..
+
+.. bpo: 29607
+.. date: 9888
+.. nonce: 7NvBA1
+.. section: Core and Builtins
+
+Fix stack_effect computation for CALL_FUNCTION_EX. Patch by Matthieu
+Dartiailh.
+
+..
+
+.. bpo: 29602
+.. date: 9887
+.. nonce: qyyskC
+.. section: Core and Builtins
+
+Fix incorrect handling of signed zeros in complex constructor for complex
+subclasses and for inputs having a __complex__ method. Patch by Serhiy
+Storchaka.
+
+..
+
+.. bpo: 29347
+.. date: 9886
+.. nonce: 1RPPGN
+.. section: Core and Builtins
+
+Fixed possibly dereferencing undefined pointers when creating weakref
+objects.
+
+..
+
+.. bpo: 29438
+.. date: 9885
+.. nonce: IKxD6I
+.. section: Core and Builtins
+
+Fixed use-after-free problem in key sharing dict.
+
+..
+
+.. bpo: 29319
+.. date: 9884
+.. nonce: KLDUZf
+.. section: Core and Builtins
+
+Prevent RunMainFromImporter overwriting sys.path[0].
+
+..
+
+.. bpo: 29337
+.. date: 9883
+.. nonce: bjX8AE
+.. section: Core and Builtins
+
+Fixed possible BytesWarning when compare the code objects. Warnings could be
+emitted at compile time.
+
+..
+
+.. bpo: 29327
+.. date: 9882
+.. nonce: XXQarW
+.. section: Core and Builtins
+
+Fixed a crash when pass the iterable keyword argument to sorted().
+
+..
+
+.. bpo: 29034
+.. date: 9881
+.. nonce: 7-uEDT
+.. section: Core and Builtins
+
+Fix memory leak and use-after-free in os module (path_converter).
+
+..
+
+.. bpo: 29159
+.. date: 9880
+.. nonce: gEn_kP
+.. section: Core and Builtins
+
+Fix regression in bytes(x) when x.__index__() raises Exception.
+
+..
+
+.. bpo: 28932
+.. date: 9879
+.. nonce: QnLx8A
+.. section: Core and Builtins
+
+Do not include <sys/random.h> if it does not exist.
+
+..
+
+.. bpo: 25677
+.. date: 9878
+.. nonce: RWhZrb
+.. section: Core and Builtins
+
+Correct the positioning of the syntax error caret for indented blocks.
+Based on patch by Michael Layzell.
+
+..
+
+.. bpo: 29000
+.. date: 9877
+.. nonce: K6wQ-3
+.. section: Core and Builtins
+
+Fixed bytes formatting of octals with zero padding in alternate form.
+
+..
+
+.. bpo: 26919
+.. date: 9876
+.. nonce: Cm7MSa
+.. section: Core and Builtins
+
+On Android, operating system data is now always encoded/decoded to/from
+UTF-8, instead of the locale encoding to avoid inconsistencies with
+os.fsencode() and os.fsdecode() which are already using UTF-8.
+
+..
+
+.. bpo: 28991
+.. date: 9875
+.. nonce: lGA0FK
+.. section: Core and Builtins
+
+functools.lru_cache() was susceptible to an obscure reentrancy bug
+triggerable by a monkey-patched len() function.
+
+..
+
+.. bpo: 28739
+.. date: 9874
+.. nonce: w1fvhk
+.. section: Core and Builtins
+
+f-string expressions are no longer accepted as docstrings and by
+ast.literal_eval() even if they do not include expressions.
+
+..
+
+.. bpo: 28512
+.. date: 9873
+.. nonce: i-pv6d
+.. section: Core and Builtins
+
+Fixed setting the offset attribute of SyntaxError by
+PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
+
+..
+
+.. bpo: 28918
+.. date: 9872
+.. nonce: SFVuPz
+.. section: Core and Builtins
+
+Fix the cross compilation of xxlimited when Python has been built with
+Py_DEBUG defined.
+
+..
+
+.. bpo: 28731
+.. date: 9871
+.. nonce: oNF59u
+.. section: Core and Builtins
+
+Optimize _PyDict_NewPresized() to create correct size dict. Improve speed of
+dict literal with constant keys up to 30%.
+
+..
+
+.. bpo: 29169
+.. date: 9870
+.. nonce: 8ypApm
+.. section: Library
+
+Update zlib to 1.2.11.
+
+..
+
+.. bpo: 29623
+.. date: 9869
+.. nonce: D3-NP2
+.. section: Library
+
+Allow use of path-like object as a single argument in ConfigParser.read().
+Patch by David Ellis.
+
+..
+
+.. bpo: 28963
+.. date: 9868
+.. nonce: tPl8dq
+.. section: Library
+
+Fix out of bound iteration in asyncio.Future.remove_done_callback
+implemented in C.
+
+..
+
+.. bpo: 29704
+.. date: 9867
+.. nonce: r-kWqv
+.. section: Library
+
+asyncio.subprocess.SubprocessStreamProtocol no longer closes before all
+pipes are closed.
+
+..
+
+.. bpo: 29271
+.. date: 9866
+.. nonce: y8Vj2v
+.. section: Library
+
+Fix Task.current_task and Task.all_tasks implemented in C to accept None
+argument as their pure Python implementation.
+
+..
+
+.. bpo: 29703
+.. date: 9865
+.. nonce: ZdsPCR
+.. section: Library
+
+Fix asyncio to support instantiation of new event loops in child processes.
+
+..
+
+.. bpo: 29376
+.. date: 9864
+.. nonce: rrJhJy
+.. section: Library
+
+Fix assertion error in threading._DummyThread.is_alive().
+
+..
+
+.. bpo: 28624
+.. date: 9863
+.. nonce: 43TJib
+.. section: Library
+
+Add a test that checks that cwd parameter of Popen() accepts PathLike
+objects. Patch by Sayan Chowdhury.
+
+..
+
+.. bpo: 28518
+.. date: 9862
+.. nonce: o-Q2Nw
+.. section: Library
+
+Start a transaction implicitly before a DML statement. Patch by Aviv
+Palivoda.
+
+..
+
+.. bpo: 29532
+.. date: 9861
+.. nonce: YCwVQn
+.. section: Library
+
+Altering a kwarg dictionary passed to functools.partial() no longer affects
+a partial object after creation.
+
+..
+
+.. bpo: 29110
+.. date: 9860
+.. nonce: wmE-_T
+.. section: Library
+
+Fix file object leak in aifc.open() when file is given as a filesystem path
+and is not in valid AIFF format. Patch by Anthony Zhang.
+
+..
+
+.. bpo: 28556
+.. date: 9859
+.. nonce: p6967e
+.. section: Library
+
+Various updates to typing module: typing.Counter, typing.ChainMap, improved
+ABC caching, etc. Original PRs by Jelle Zijlstra, Ivan Levkivskyi, Manuel
+Krebber, and Łukasz Langa.
+
+..
+
+.. bpo: 29100
+.. date: 9858
+.. nonce: LAAERS
+.. section: Library
+
+Fix datetime.fromtimestamp() regression introduced in Python 3.6.0: check
+minimum and maximum years.
+
+..
+
+.. bpo: 29519
+.. date: 9857
+.. nonce: oGGgZ4
+.. section: Library
+
+Fix weakref spewing exceptions during interpreter shutdown when used with a
+rare combination of multiprocessing and custom codecs.
+
+..
+
+.. bpo: 29416
+.. date: 9856
+.. nonce: KJGyI_
+.. section: Library
+
+Prevent infinite loop in pathlib.Path.mkdir
+
+..
+
+.. bpo: 29444
+.. date: 9855
+.. nonce: cEwgmk
+.. section: Library
+
+Fixed out-of-bounds buffer access in the group() method of the match object.
+Based on patch by WGH.
+
+..
+
+.. bpo: 29335
+.. date: 9854
+.. nonce: _KC7IK
+.. section: Library
+
+Fix subprocess.Popen.wait() when the child process has exited to a stopped
+instead of terminated state (ex: when under ptrace).
+
+..
+
+.. bpo: 29290
+.. date: 9853
+.. nonce: XBqptF
+.. section: Library
+
+Fix a regression in argparse that help messages would wrap at non-breaking
+spaces.
+
+..
+
+.. bpo: 28735
+.. date: 9852
+.. nonce: admHLO
+.. section: Library
+
+Fixed the comparison of mock.MagickMock with mock.ANY.
+
+..
+
+.. bpo: 29316
+.. date: 9851
+.. nonce: OeOQw5
+.. section: Library
+
+Restore the provisional status of typing module, add corresponding note to
+documentation. Patch by Ivan L.
+
+..
+
+.. bpo: 29219
+.. date: 9850
+.. nonce: kxui7t
+.. section: Library
+
+Fixed infinite recursion in the repr of uninitialized ctypes.CDLL instances.
+
+..
+
+.. bpo: 29011
+.. date: 9849
+.. nonce: MI5f2R
+.. section: Library
+
+Fix an important omission by adding Deque to the typing module.
+
+..
+
+.. bpo: 28969
+.. date: 9848
+.. nonce: j3HJYO
+.. section: Library
+
+Fixed race condition in C implementation of functools.lru_cache. KeyError
+could be raised when cached function with full cache was simultaneously
+called from different threads with the same uncached arguments.
+
+..
+
+.. bpo: 29142
+.. date: 9847
+.. nonce: xo6kAv
+.. section: Library
+
+In urllib.request, suffixes in no_proxy environment variable with leading
+dots could match related hostnames again (e.g. .b.c matches a.b.c). Patch by
+Milan Oberkirch.
+
+..
+
+.. bpo: 28961
+.. date: 9846
+.. nonce: Rt93vg
+.. section: Library
+
+Fix unittest.mock._Call helper: don't ignore the name parameter anymore.
+Patch written by Jiajun Huang.
+
+..
+
+.. bpo: 29203
+.. date: 9845
+.. nonce: kN5S6v
+.. section: Library
+
+functools.lru_cache() now respects :pep:`468` and preserves the order of
+keyword arguments. f(a=1, b=2) is now cached separately from f(b=2, a=1)
+since both calls could potentially give different results.
+
+..
+
+.. bpo: 15812
+.. date: 9844
+.. nonce: R1U-Ec
+.. section: Library
+
+inspect.getframeinfo() now correctly shows the first line of a context.
+Patch by Sam Breese.
+
+..
+
+.. bpo: 29094
+.. date: 9843
+.. nonce: 460ZQo
+.. section: Library
+
+Offsets in a ZIP file created with extern file object and modes "w" and "x"
+now are relative to the start of the file.
+
+..
+
+.. bpo: 29085
+.. date: 9842
+.. nonce: bm3gkx
+.. section: Library
+
+Allow random.Random.seed() to use high quality OS randomness rather than the
+pid and time.
+
+..
+
+.. bpo: 29061
+.. date: 9841
+.. nonce: YKq0Ba
+.. section: Library
+
+Fixed bug in secrets.randbelow() which would hang when given a negative
+input. Patch by Brendan Donegan.
+
+..
+
+.. bpo: 29079
+.. date: 9840
+.. nonce: g4YLix
+.. section: Library
+
+Prevent infinite loop in pathlib.resolve() on Windows
+
+..
+
+.. bpo: 13051
+.. date: 9839
+.. nonce: YzC1Te
+.. section: Library
+
+Fixed recursion errors in large or resized curses.textpad.Textbox. Based on
+patch by Tycho Andersen.
+
+..
+
+.. bpo: 29119
+.. date: 9838
+.. nonce: Ov69fr
+.. section: Library
+
+Fix weakrefs in the pure python version of collections.OrderedDict
+move_to_end() method. Contributed by Andra Bogildea.
+
+..
+
+.. bpo: 9770
+.. date: 9837
+.. nonce: WJJnwP
+.. section: Library
+
+curses.ascii predicates now work correctly with negative integers.
+
+..
+
+.. bpo: 28427
+.. date: 9836
+.. nonce: vUd-va
+.. section: Library
+
+old keys should not remove new values from WeakValueDictionary when
+collecting from another thread.
+
+..
+
+.. bpo: 28923
+.. date: 9835
+.. nonce: naVULD
+.. section: Library
+
+Remove editor artifacts from Tix.py.
+
+..
+
+.. bpo: 29055
+.. date: 9834
+.. nonce: -r_9jc
+.. section: Library
+
+Neaten-up empty population error on random.choice() by suppressing the
+upstream exception.
+
+..
+
+.. bpo: 28871
+.. date: 9833
+.. nonce: cPMXCJ
+.. section: Library
+
+Fixed a crash when deallocate deep ElementTree.
+
+..
+
+.. bpo: 19542
+.. date: 9832
+.. nonce: 5tCkaK
+.. section: Library
+
+Fix bugs in WeakValueDictionary.setdefault() and WeakValueDictionary.pop()
+when a GC collection happens in another thread.
+
+..
+
+.. bpo: 20191
+.. date: 9831
+.. nonce: Q7uZCS
+.. section: Library
+
+Fixed a crash in resource.prlimit() when passing a sequence that doesn't own
+its elements as limits.
+
+..
+
+.. bpo: 28779
+.. date: 9830
+.. nonce: t-mjED
+.. section: Library
+
+multiprocessing.set_forkserver_preload() would crash the forkserver process
+if a preloaded module instantiated some multiprocessing objects such as
+locks.
+
+..
+
+.. bpo: 28847
+.. date: 9829
+.. nonce: J7d3nG
+.. section: Library
+
+dbm.dumb now supports reading read-only files and no longer writes the index
+file when it is not changed.
+
+..
+
+.. bpo: 26937
+.. date: 9828
+.. nonce: c9kgiA
+.. section: Library
+
+The chown() method of the tarfile.TarFile class does not fail now when the
+grp module cannot be imported, as for example on Android platforms.
+
+..
+
+.. bpo: 29071
+.. date: 9827
+.. nonce: FCOpJn
+.. section: IDLE
+
+IDLE colors f-string prefixes (but not invalid ur prefixes).
+
+..
+
+.. bpo: 28572
+.. date: 9826
+.. nonce: 1_duKY
+.. section: IDLE
+
+Add 10% to coverage of IDLE's test_configdialog. Update and augment
+description of the configuration system.
+
+..
+
+.. bpo: 29579
+.. date: 9825
+.. nonce: Ih-G2Q
+.. section: Windows
+
+Removes readme.txt from the installer
+
+..
+
+.. bpo: 29326
+.. date: 9824
+.. nonce: 4qDQzs
+.. section: Windows
+
+Ignores blank lines in ._pth files (Patch by Alexey Izbyshev)
+
+..
+
+.. bpo: 28164
+.. date: 9823
+.. nonce: h4CFX8
+.. section: Windows
+
+Correctly handle special console filenames (patch by Eryk Sun)
+
+..
+
+.. bpo: 29409
+.. date: 9822
+.. nonce: bhvrJ2
+.. section: Windows
+
+Implement :pep:`529` for io.FileIO (Patch by Eryk Sun)
+
+..
+
+.. bpo: 29392
+.. date: 9821
+.. nonce: OtqS5t
+.. section: Windows
+
+Prevent crash when passing invalid arguments into msvcrt module.
+
+..
+
+.. bpo: 25778
+.. date: 9820
+.. nonce: 8uKJ82
+.. section: Windows
+
+winreg does not truncate string correctly (Patch by Eryk Sun)
+
+..
+
+.. bpo: 28896
+.. date: 9819
+.. nonce: VMi9w0
+.. section: Windows
+
+Deprecate WindowsRegistryFinder and disable it by default.
+
+..
+
+.. bpo: 27867
+.. date: 9818
+.. nonce: UC5ohc
+.. section: C API
+
+Function PySlice_GetIndicesEx() is replaced with a macro if Py_LIMITED_API
+is not set or set to the value between 0x03050400 and 0x03060000 (not
+including) or 0x03060100 or higher.
+
+..
+
+.. bpo: 29083
+.. date: 9817
+.. nonce: tGTjr_
+.. section: C API
+
+Fixed the declaration of some public API functions. PyArg_VaParse() and
+PyArg_VaParseTupleAndKeywords() were not available in limited API.
+PyArg_ValidateKeywordArguments(), PyArg_UnpackTuple() and Py_BuildValue()
+were not available in limited API of version < 3.3 when PY_SSIZE_T_CLEAN is
+defined.
+
+..
+
+.. bpo: 29058
+.. date: 9816
+.. nonce: 0wNVP8
+.. section: C API
+
+All stable API extensions added after Python 3.2 are now available only when
+Py_LIMITED_API is set to the PY_VERSION_HEX value of the minimum Python
+version supporting this API.
+
+..
+
+.. bpo: 28929
+.. date: 9815
+.. nonce: Md7kb0
+.. section: Documentation
+
+Link the documentation to its source file on GitHub.
+
+..
+
+.. bpo: 25008
+.. date: 9814
+.. nonce: CeIzyU
+.. section: Documentation
+
+Document smtpd.py as effectively deprecated and add a pointer to aiosmtpd, a
+third-party asyncio-based replacement.
+
+..
+
+.. bpo: 26355
+.. date: 9813
+.. nonce: SDq_8Y
+.. section: Documentation
+
+Add canonical header link on each page to corresponding major version of the
+documentation. Patch by Matthias Bussonnier.
+
+..
+
+.. bpo: 29349
+.. date: 9812
+.. nonce: PjSo-t
+.. section: Documentation
+
+Fix Python 2 syntax in code for building the documentation.
+
+..
+
+.. bpo: 28087
+.. date: 9811
+.. nonce: m8dc4R
+.. section: Tests
+
+Skip test_asyncore and test_eintr poll failures on macOS. Skip some tests of
+select.poll when running on macOS due to unresolved issues with the
+underlying system poll function on some macOS versions.
+
+..
+
+.. bpo: 29571
+.. date: 9810
+.. nonce: r6Dixr
+.. section: Tests
+
+to match the behaviour of the ``re.LOCALE`` flag, test_re.test_locale_flag
+now uses ``locale.getpreferredencoding(False)`` to determine the candidate
+encoding for the test regex (allowing it to correctly skip the test when the
+default locale encoding is a multi-byte encoding)
+
+..
+
+.. bpo: 28950
+.. date: 9809
+.. nonce: 1W8Glo
+.. section: Tests
+
+Disallow -j0 to be combined with -T/-l in regrtest command line arguments.
+
+..
+
+.. bpo: 28683
+.. date: 9808
+.. nonce: Fp-Hdq
+.. section: Tests
+
+Fix the tests that bind() a unix socket and raise PermissionError on Android
+for a non-root user.
+
+..
+
+.. bpo: 26939
+.. date: 9807
+.. nonce: 7j_W5R
+.. section: Tests
+
+Add the support.setswitchinterval() function to fix test_functools hanging
+on the Android armv7 qemu emulator.
+
+..
+
+.. bpo: 27593
+.. date: 9806
+.. nonce: v87xEr
+.. section: Build
+
+sys.version and the platform module python_build(), python_branch(), and
+python_revision() functions now use git information rather than hg when
+building from a repo.
+
+..
+
+.. bpo: 29572
+.. date: 9805
+.. nonce: iZ1XKK
+.. section: Build
+
+Update Windows build and OS X installers to use OpenSSL 1.0.2k.
+
+..
+
+.. bpo: 26851
+.. date: 9804
+.. nonce: R5243g
+.. section: Build
+
+Set Android compilation and link flags.
+
+..
+
+.. bpo: 28768
+.. date: 9803
+.. nonce: b9_a6E
+.. section: Build
+
+Fix implicit declaration of function _setmode. Patch by Masayuki Yamamoto
+
+..
+
+.. bpo: 29080
+.. date: 9802
+.. nonce: b3qLQT
+.. section: Build
+
+Removes hard dependency on hg.exe from PCBuild/build.bat
+
+..
+
+.. bpo: 23903
+.. date: 9801
+.. nonce: JXJ889
+.. section: Build
+
+Added missed names to PC/python3.def.
+
+..
+
+.. bpo: 28762
+.. date: 9800
+.. nonce: Ru0YN_
+.. section: Build
+
+lockf() is available on Android API level 24, but the F_LOCK macro is not
+defined in android-ndk-r13.
+
+..
+
+.. bpo: 28538
+.. date: 9799
+.. nonce: FqtN7v
+.. section: Build
+
+Fix the compilation error that occurs because if_nameindex() is available on
+Android API level 24, but the if_nameindex structure is not defined.
+
+..
+
+.. bpo: 20211
+.. date: 9798
+.. nonce: gpNptI
+.. section: Build
+
+Do not add the directory for installing C header files and the directory for
+installing object code libraries to the cross compilation search paths.
+Original patch by Thomas Petazzoni.
+
+..
+
+.. bpo: 28849
+.. date: 9797
+.. nonce: AzRRF5
+.. section: Build
+
+Do not define sys.implementation._multiarch on Android.
--- /dev/null
+.. bpo: 0
+.. date: 9993
+.. no changes: True
+.. nonce: F9ENBV
+.. release date: 2017-07-17
+
+No changes since release candidate 2
--- /dev/null
+.. release date: 2017-06-17
+.. bpo: 29591
+.. date: 9966
+.. nonce: ExKblw
+.. original section: Library
+.. section: Security
+
+Update expat copy from 2.1.1 to 2.2.0 to get fixes of CVE-2016-0718 and
+CVE-2016-4472. See https://sourceforge.net/p/expat/bugs/537/ for more
+information.
+
+..
+
+.. bpo: 30682
+.. date: 9989
+.. nonce: zZm88E
+.. section: Core and Builtins
+
+Removed a too-strict assertion that failed for certain f-strings, such as
+eval("f'\\\n'") and eval("f'\\\r'").
+
+..
+
+.. bpo: 30604
+.. date: 9988
+.. nonce: W47hPY
+.. section: Core and Builtins
+
+Move co_extra_freefuncs to not be per-thread to avoid crashes
+
+..
+
+.. bpo: 29104
+.. date: 9987
+.. nonce: u26yCx
+.. section: Core and Builtins
+
+Fixed parsing backslashes in f-strings.
+
+..
+
+.. bpo: 27945
+.. date: 9986
+.. nonce: p29r3O
+.. section: Core and Builtins
+
+Fixed various segfaults with dict when input collections are mutated during
+searching, inserting or comparing. Based on patches by Duane Griffin and
+Tim Mitchell.
+
+..
+
+.. bpo: 25794
+.. date: 9985
+.. nonce: xfPwqm
+.. section: Core and Builtins
+
+Fixed type.__setattr__() and type.__delattr__() for non-interned attribute
+names. Based on patch by Eryk Sun.
+
+..
+
+.. bpo: 30039
+.. date: 9984
+.. nonce: e0u4DG
+.. section: Core and Builtins
+
+If a KeyboardInterrupt happens when the interpreter is in the middle of
+resuming a chain of nested 'yield from' or 'await' calls, it's now correctly
+delivered to the innermost frame.
+
+..
+
+.. bpo: 12414
+.. date: 9983
+.. nonce: T9ix8O
+.. section: Core and Builtins
+
+sys.getsizeof() on a code object now returns the sizes which includes the
+code struct and sizes of objects which it references. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 29949
+.. date: 9982
+.. nonce: DevGPS
+.. section: Core and Builtins
+
+Fix memory usage regression of set and frozenset object.
+
+..
+
+.. bpo: 29935
+.. date: 9981
+.. nonce: vgjdJo
+.. section: Core and Builtins
+
+Fixed error messages in the index() method of tuple, list and deque when
+pass indices of wrong type.
+
+..
+
+.. bpo: 29859
+.. date: 9980
+.. nonce: Z1MLcA
+.. section: Core and Builtins
+
+Show correct error messages when any of the pthread_* calls in
+thread_pthread.h fails.
+
+..
+
+.. bpo: 28876
+.. date: 9979
+.. nonce: cU-sGT
+.. section: Core and Builtins
+
+``bool(range)`` works even if ``len(range)`` raises :exc:`OverflowError`.
+
+..
+
+.. bpo: 29600
+.. date: 9978
+.. nonce: 77wQ6C
+.. section: Core and Builtins
+
+Fix wrapping coroutine return values in StopIteration.
+
+..
+
+.. bpo: 28856
+.. date: 9977
+.. nonce: AFRmo4
+.. section: Core and Builtins
+
+Fix an oversight that %b format for bytes should support objects follow the
+buffer protocol.
+
+..
+
+.. bpo: 29714
+.. date: 9976
+.. nonce: z-BhVd
+.. section: Core and Builtins
+
+Fix a regression that bytes format may fail when containing zero bytes
+inside.
+
+..
+
+.. bpo: 29478
+.. date: 9975
+.. nonce: rTQ-qy
+.. section: Core and Builtins
+
+If max_line_length=None is specified while using the Compat32 policy, it is
+no longer ignored. Patch by Mircea Cosbuc.
+
+..
+
+.. bpo: 30616
+.. date: 9974
+.. nonce: I2mDTz
+.. section: Library
+
+Functional API of enum allows to create empty enums. Patched by Dong-hee Na
+
+..
+
+.. bpo: 30038
+.. date: 9973
+.. nonce: vb4DWk
+.. section: Library
+
+Fix race condition between signal delivery and wakeup file descriptor.
+Patch by Nathaniel Smith.
+
+..
+
+.. bpo: 23894
+.. date: 9972
+.. nonce: k2pADV
+.. section: Library
+
+lib2to3 now recognizes ``rb'...'`` and ``f'...'`` strings.
+
+..
+
+.. bpo: 23890
+.. date: 9971
+.. nonce: GCFAAZ
+.. section: Library
+
+unittest.TestCase.assertRaises() now manually breaks a reference cycle to
+not keep objects alive longer than expected.
+
+..
+
+.. bpo: 30149
+.. date: 9970
+.. nonce: hE649r
+.. section: Library
+
+inspect.signature() now supports callables with variable-argument parameters
+wrapped with partialmethod. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 30645
+.. date: 9969
+.. nonce: oYzbbW
+.. section: Library
+
+Fix path calculation in imp.load_package(), fixing it for cases when a
+package is only shipped with bytecodes. Patch by Alexandru Ardelean.
+
+..
+
+.. bpo: 29931
+.. date: 9968
+.. nonce: tfcTwK
+.. section: Library
+
+Fixed comparison check for ipaddress.ip_interface objects. Patch by Sanjay
+Sundaresan.
+
+..
+
+.. bpo: 30605
+.. date: 9967
+.. nonce: XqGz1r
+.. section: Library
+
+re.compile() no longer raises a BytesWarning when compiling a bytes instance
+with misplaced inline modifier. Patch by Roy Williams.
+
+..
+
+.. bpo: 24484
+.. date: 9965
+.. nonce: fNS32j
+.. section: Library
+
+Avoid race condition in multiprocessing cleanup (#2159)
+
+..
+
+.. bpo: 28994
+.. date: 9964
+.. nonce: 9vzun1
+.. section: Library
+
+The traceback no longer displayed for SystemExit raised in a callback
+registered by atexit.
+
+..
+
+.. bpo: 30508
+.. date: 9963
+.. nonce: wNWRS2
+.. section: Library
+
+Don't log exceptions if Task/Future "cancel()" method was called.
+
+..
+
+.. bpo: 28556
+.. date: 9962
+.. nonce: mESP7G
+.. section: Library
+
+Updates to typing module: Add generic AsyncContextManager, add support for
+ContextManager on all versions. Original PRs by Jelle Zijlstra and Ivan
+Levkivskyi
+
+..
+
+.. bpo: 29870
+.. date: 9961
+.. nonce: p960Ih
+.. section: Library
+
+Fix ssl sockets leaks when connection is aborted in asyncio/ssl
+implementation. Patch by Michaël Sghaïer.
+
+..
+
+.. bpo: 29743
+.. date: 9960
+.. nonce: en2P4s
+.. section: Library
+
+Closing transport during handshake process leaks open socket. Patch by
+Nikolay Kim
+
+..
+
+.. bpo: 27585
+.. date: 9959
+.. nonce: 0Ugqqu
+.. section: Library
+
+Fix waiter cancellation in asyncio.Lock. Patch by Mathieu Sornay.
+
+..
+
+.. bpo: 30418
+.. date: 9958
+.. nonce: EwISQm
+.. section: Library
+
+On Windows, subprocess.Popen.communicate() now also ignore EINVAL on
+stdin.write() if the child process is still running but closed the pipe.
+
+..
+
+.. bpo: 29822
+.. date: 9957
+.. nonce: G7dX13
+.. section: Library
+
+inspect.isabstract() now works during __init_subclass__. Patch by Nate
+Soares.
+
+..
+
+.. bpo: 29581
+.. date: 9956
+.. nonce: gHCrxP
+.. section: Library
+
+ABCMeta.__new__ now accepts ``**kwargs``, allowing abstract base classes to
+use keyword parameters in __init_subclass__. Patch by Nate Soares.
+
+..
+
+.. bpo: 30557
+.. date: 9955
+.. nonce: uykrLf
+.. section: Library
+
+faulthandler now correctly filters and displays exception codes on Windows
+
+..
+
+.. bpo: 30378
+.. date: 9954
+.. nonce: R_19_5
+.. section: Library
+
+Fix the problem that logging.handlers.SysLogHandler cannot handle IPv6
+addresses.
+
+..
+
+.. bpo: 29960
+.. date: 9953
+.. nonce: g0wr3r
+.. section: Library
+
+Preserve generator state when _random.Random.setstate() raises an exception.
+Patch by Bryan Olson.
+
+..
+
+.. bpo: 30414
+.. date: 9952
+.. nonce: jGl1Lb
+.. section: Library
+
+multiprocessing.Queue._feed background running thread do not break from main
+loop on exception.
+
+..
+
+.. bpo: 30003
+.. date: 9951
+.. nonce: BOl9HE
+.. section: Library
+
+Fix handling escape characters in HZ codec. Based on patch by Ma Lin.
+
+..
+
+.. bpo: 30301
+.. date: 9950
+.. nonce: ywOkjN
+.. section: Library
+
+Fix AttributeError when using SimpleQueue.empty() under *spawn* and
+*forkserver* start methods.
+
+..
+
+.. bpo: 30329
+.. date: 9949
+.. nonce: EuT36N
+.. section: Library
+
+imaplib and poplib now catch the Windows socket WSAEINVAL error (code 10022)
+on shutdown(SHUT_RDWR): An invalid operation was attempted. This error
+occurs sometimes on SSL connections.
+
+..
+
+.. bpo: 30375
+.. date: 9948
+.. nonce: 9c8qM7
+.. section: Library
+
+Warnings emitted when compile a regular expression now always point to the
+line in the user code. Previously they could point into inners of the re
+module if emitted from inside of groups or conditionals.
+
+..
+
+.. bpo: 30048
+.. date: 9947
+.. nonce: ELRx8R
+.. section: Library
+
+Fixed ``Task.cancel()`` can be ignored when the task is running coroutine
+and the coroutine returned without any more ``await``.
+
+..
+
+.. bpo: 30266
+.. date: 9946
+.. nonce: YJzHAH
+.. section: Library
+
+contextlib.AbstractContextManager now supports anti-registration by setting
+__enter__ = None or __exit__ = None, following the pattern introduced in
+bpo-25958. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 30298
+.. date: 9945
+.. nonce: ZN-bWo
+.. section: Library
+
+Weaken the condition of deprecation warnings for inline modifiers. Now
+allowed several subsequential inline modifiers at the start of the pattern
+(e.g. ``'(?i)(?s)...'``). In verbose mode whitespaces and comments now are
+allowed before and between inline modifiers (e.g. ``'(?x) (?i) (?s)...'``).
+
+..
+
+.. bpo: 29990
+.. date: 9944
+.. nonce: HWV6KE
+.. section: Library
+
+Fix range checking in GB18030 decoder. Original patch by Ma Lin.
+
+..
+
+.. bpo: 26293
+.. date: 9943
+.. nonce: wig0YG
+.. section: Library
+
+Change resulted because of zipfile breakage. (See also: bpo-29094)
+
+..
+
+.. bpo: 30243
+.. date: 9942
+.. nonce: RHQt0v
+.. section: Library
+
+Removed the __init__ methods of _json's scanner and encoder. Misusing them
+could cause memory leaks or crashes. Now scanner and encoder objects are
+completely initialized in the __new__ methods.
+
+..
+
+.. bpo: 30185
+.. date: 9941
+.. nonce: Tiu1n8
+.. section: Library
+
+Avoid KeyboardInterrupt tracebacks in forkserver helper process when Ctrl-C
+is received.
+
+..
+
+.. bpo: 28556
+.. date: 9940
+.. nonce: 51gjbP
+.. section: Library
+
+Various updates to typing module: add typing.NoReturn type, use
+WrapperDescriptorType, minor bug-fixes. Original PRs by Jim
+Fasarakis-Hilliard and Ivan Levkivskyi.
+
+..
+
+.. bpo: 30205
+.. date: 9939
+.. nonce: BsxO34
+.. section: Library
+
+Fix getsockname() for unbound AF_UNIX sockets on Linux.
+
+..
+
+.. bpo: 30070
+.. date: 9938
+.. nonce: XM_B41
+.. section: Library
+
+Fixed leaks and crashes in errors handling in the parser module.
+
+..
+
+.. bpo: 30061
+.. date: 9937
+.. nonce: 2w_dX9
+.. section: Library
+
+Fixed crashes in IOBase methods __next__() and readlines() when readline()
+or __next__() respectively return non-sizeable object. Fixed possible other
+errors caused by not checking results of PyObject_Size(), PySequence_Size(),
+or PyMapping_Size().
+
+..
+
+.. bpo: 30017
+.. date: 9936
+.. nonce: cKBuhU
+.. section: Library
+
+Allowed calling the close() method of the zip entry writer object multiple
+times. Writing to a closed writer now always produces a ValueError.
+
+..
+
+.. bpo: 30068
+.. date: 9935
+.. nonce: n4q47r
+.. section: Library
+
+_io._IOBase.readlines will check if it's closed first when hint is present.
+
+..
+
+.. bpo: 29694
+.. date: 9934
+.. nonce: LWKxb1
+.. section: Library
+
+Fixed race condition in pathlib mkdir with flags parents=True. Patch by
+Armin Rigo.
+
+..
+
+.. bpo: 29692
+.. date: 9933
+.. nonce: oyWrAE
+.. section: Library
+
+Fixed arbitrary unchaining of RuntimeError exceptions in
+contextlib.contextmanager. Patch by Siddharth Velankar.
+
+..
+
+.. bpo: 29998
+.. date: 9932
+.. nonce: poeIKD
+.. section: Library
+
+Pickling and copying ImportError now preserves name and path attributes.
+
+..
+
+.. bpo: 29953
+.. date: 9931
+.. nonce: Q1hSt-
+.. section: Library
+
+Fixed memory leaks in the replace() method of datetime and time objects when
+pass out of bound fold argument.
+
+..
+
+.. bpo: 29942
+.. date: 9930
+.. nonce: CsGNuT
+.. section: Library
+
+Fix a crash in itertools.chain.from_iterable when encountering long runs of
+empty iterables.
+
+..
+
+.. bpo: 27863
+.. date: 9929
+.. nonce: pPYHHI
+.. section: Library
+
+Fixed multiple crashes in ElementTree caused by race conditions and wrong
+types.
+
+..
+
+.. bpo: 28699
+.. date: 9928
+.. nonce: wZztZP
+.. section: Library
+
+Fixed a bug in pools in multiprocessing.pool that raising an exception at
+the very first of an iterable may swallow the exception or make the program
+hang. Patch by Davin Potts and Xiang Zhang.
+
+..
+
+.. bpo: 25803
+.. date: 9927
+.. nonce: CPDR0W
+.. section: Library
+
+Avoid incorrect errors raised by Path.mkdir(exist_ok=True) when the OS gives
+priority to errors such as EACCES over EEXIST.
+
+..
+
+.. bpo: 29861
+.. date: 9926
+.. nonce: t2ZoRK
+.. section: Library
+
+Release references to tasks, their arguments and their results as soon as
+they are finished in multiprocessing.Pool.
+
+..
+
+.. bpo: 29884
+.. date: 9925
+.. nonce: kWXR8W
+.. section: Library
+
+faulthandler: Restore the old sigaltstack during teardown. Patch by
+Christophe Zeitouny.
+
+..
+
+.. bpo: 25455
+.. date: 9924
+.. nonce: ZsahHN
+.. section: Library
+
+Fixed crashes in repr of recursive buffered file-like objects.
+
+..
+
+.. bpo: 29800
+.. date: 9923
+.. nonce: d2xASa
+.. section: Library
+
+Fix crashes in partial.__repr__ if the keys of partial.keywords are not
+strings. Patch by Michael Seifert.
+
+..
+
+.. bpo: 29742
+.. date: 9922
+.. nonce: 8hqfEO
+.. section: Library
+
+get_extra_info() raises exception if get called on closed ssl transport.
+Patch by Nikolay Kim.
+
+..
+
+.. bpo: 8256
+.. date: 9921
+.. nonce: jAwGQH
+.. section: Library
+
+Fixed possible failing or crashing input() if attributes "encoding" or
+"errors" of sys.stdin or sys.stdout are not set or are not strings.
+
+..
+
+.. bpo: 28298
+.. date: 9920
+.. nonce: xfm84U
+.. section: Library
+
+Fix a bug that prevented array 'Q', 'L' and 'I' from accepting big intables
+(objects that have __int__) as elements. Patch by Oren Milman.
+
+..
+
+.. bpo: 28231
+.. date: 9919
+.. nonce: MG1X09
+.. section: Library
+
+The zipfile module now accepts path-like objects for external paths.
+
+..
+
+.. bpo: 26915
+.. date: 9918
+.. nonce: qShJZO
+.. section: Library
+
+index() and count() methods of collections.abc.Sequence now check identity
+before checking equality when do comparisons.
+
+..
+
+.. bpo: 29615
+.. date: 9917
+.. nonce: OpFKzg
+.. section: Library
+
+SimpleXMLRPCDispatcher no longer chains KeyError (or any other exception) to
+exception(s) raised in the dispatched methods. Patch by Petr Motejlek.
+
+..
+
+.. bpo: 30177
+.. date: 9916
+.. nonce: JGIJNL
+.. section: Library
+
+path.resolve(strict=False) no longer cuts the path after the first element
+not present in the filesystem. Patch by Antoine Pietri.
+
+..
+
+.. bpo: 15786
+.. date: 9915
+.. nonce: _XRbaR
+.. section: IDLE
+
+Fix several problems with IDLE's autocompletion box. The following should
+now work: clicking on selection box items; using the scrollbar; selecting an
+item by hitting Return. Hangs on MacOSX should no longer happen. Patch by
+Louie Lu.
+
+..
+
+.. bpo: 25514
+.. date: 9914
+.. nonce: 882pXa
+.. section: IDLE
+
+Add doc subsubsection about IDLE failure to start. Popup no-connection
+message directs users to this section.
+
+..
+
+.. bpo: 30642
+.. date: 9913
+.. nonce: 3Zujzt
+.. section: IDLE
+
+Fix reference leaks in IDLE tests. Patches by Louie Lu and Terry Jan Reedy.
+
+..
+
+.. bpo: 30495
+.. date: 9912
+.. nonce: I3i5vL
+.. section: IDLE
+
+Add docstrings for textview.py and use PEP8 names. Patches by Cheryl Sabella
+and Terry Jan Reedy.
+
+..
+
+.. bpo: 30290
+.. date: 9911
+.. nonce: fZ3kod
+.. section: IDLE
+
+Help-about: use pep8 names and add tests. Increase coverage to 100%. Patches
+by Louie Lu, Cheryl Sabella, and Terry Jan Reedy.
+
+..
+
+.. bpo: 30303
+.. date: 9910
+.. nonce: 2L2F-4
+.. section: IDLE
+
+Add _utest option to textview; add new tests. Increase coverage to 100%.
+Patches by Louie Lu and Terry Jan Reedy.
+
+..
+
+.. bpo: 27867
+.. date: 9909
+.. nonce: B46BRE
+.. section: C API
+
+Function PySlice_GetIndicesEx() no longer replaced with a macro if
+Py_LIMITED_API is not set.
+
+..
+
+.. bpo: 29941
+.. date: 9908
+.. nonce: ylh45A
+.. section: Build
+
+Add ``--with-assertions`` configure flag to explicitly enable C ``assert()``
+checks. Defaults to off. ``--with-pydebug`` implies ``--with-assertions``.
+
+..
+
+.. bpo: 28787
+.. date: 9907
+.. nonce: vhH_6a
+.. section: Build
+
+Fix out-of-tree builds of Python when configured with ``--with--dtrace``.
+
+..
+
+.. bpo: 29243
+.. date: 9906
+.. nonce: WDK4hT
+.. section: Build
+
+Prevent unnecessary rebuilding of Python during ``make test``, ``make
+install`` and some other make targets when configured with
+``--enable-optimizations``.
+
+..
+
+.. bpo: 23404
+.. date: 9905
+.. nonce: PdYVWg
+.. section: Build
+
+Don't regenerate generated files based on file modification time anymore:
+the action is now explicit. Replace ``make touch`` with ``make regen-all``.
+
+..
+
+.. bpo: 29643
+.. date: 9904
+.. nonce: 4WLIJQ
+.. section: Build
+
+Fix ``--enable-optimization`` didn't work.
+
+..
+
+.. bpo: 30176
+.. date: 9903
+.. nonce: VivmCg
+.. section: Documentation
+
+Add missing attribute related constants in curses documentation.
+
+..
+
+.. bpo: 30052
+.. date: 9902
+.. nonce: TpmpaF
+.. section: Documentation
+
+the link targets for :func:`bytes` and :func:`bytearray` are now their
+respective type definitions, rather than the corresponding builtin function
+entries. Use :ref:`bytes <func-bytes>` and :ref:`bytearray <func-bytearray>`
+to reference the latter.
+In order to ensure this and future cross-reference updates are applied
+automatically, the daily documentation builds now disable the default output
+caching features in Sphinx.
+
+..
+
+.. bpo: 26985
+.. date: 9901
+.. nonce: NB5_9S
+.. section: Documentation
+
+Add missing info of code object in inspect documentation.
+
+..
+
+.. bpo: 29367
+.. date: 9900
+.. nonce: 4dOKL0
+.. section: Tools/Demos
+
+python-gdb.py now supports also ``method-wrapper`` (``wrapperobject``)
+objects.
+
+..
+
+.. bpo: 30357
+.. date: 9899
+.. nonce: n4CPEa
+.. section: Tests
+
+test_thread: setUp() now uses support.threading_setup() and
+support.threading_cleanup() to wait until threads complete to avoid random
+side effects on following tests. Initial patch written by Grzegorz Grzywacz.
+
+..
+
+.. bpo: 30197
+.. date: 9898
+.. nonce: c5wRfu
+.. section: Tests
+
+Enhanced functions swap_attr() and swap_item() in the test.support module.
+They now work when delete replaced attribute or item inside the with
+statement. The old value of the attribute or item (or None if it doesn't
+exist) now will be assigned to the target of the "as" clause, if there is
+one.
+
+..
+
+.. bpo: 30687
+.. date: 9897
+.. nonce: 8mqHnu
+.. section: Windows
+
+Locate msbuild.exe on Windows when building rather than vcvarsall.bat
+
+..
+
+.. bpo: 30450
+.. date: 9896
+.. nonce: qsaK8y
+.. section: Windows
+
+The build process on Windows no longer depends on Subversion, instead
+pulling external code from GitHub via a Python script. If Python 3.6 is not
+found on the system (via ``py -3.6``), NuGet is used to download a copy of
+32-bit Python.
--- /dev/null
+.. bpo: 30730
+.. date: 9992
+.. nonce: rJsyTH
+.. original section: Library
+.. release date: 2017-07-07
+.. section: Security
+
+Prevent environment variables injection in subprocess on Windows. Prevent
+passing other environment variables and command arguments.
+
+..
+
+.. bpo: 30694
+.. date: 9991
+.. nonce: WkMWM_
+.. original section: Library
+.. section: Security
+
+Upgrade expat copy from 2.2.0 to 2.2.1 to get fixes of multiple security
+vulnerabilities including: CVE-2017-9233 (External entity infinite loop
+DoS), CVE-2016-9063 (Integer overflow, re-fix), CVE-2016-0718 (Fix
+regression bugs from 2.2.0's fix to CVE-2016-0718) and CVE-2012-0876
+(Counter hash flooding with SipHash). Note: the CVE-2016-5300 (Use
+os-specific entropy sources like getrandom) doesn't impact Python, since
+Python already gets entropy from the OS to set the expat secret using
+``XML_SetHashSalt()``.
+
+..
+
+.. bpo: 30500
+.. date: 9990
+.. nonce: 1VG7R-
+.. original section: Library
+.. section: Security
+
+Fix urllib.parse.splithost() to correctly parse fragments. For example,
+``splithost('//127.0.0.1#@evil.com/')`` now correctly returns the
+``127.0.0.1`` host, instead of treating ``@evil.com`` as the host in an
+authentication (``login@host``).
--- /dev/null
+.. bpo: 31641
+.. date: 2017-10-03-01-05-11
+.. nonce: vlQEq5
+.. release date: 2017-10-03
+.. section: Library
+
+Re-allow arbitrary iterables in `concurrent.futures.as_completed()`. Fixes
+regression in 3.6.3rc1.
+
+..
+
+.. bpo: 31662
+.. date: 2017-10-03-01-06-24
+.. nonce: 8l2jEz
+.. section: Build
+
+Fix typos in Windows ``uploadrelease.bat`` script. Fix Windows Doc build
+issues in ``Doc/make.bat``.
+
+..
+
+.. bpo: 31423
+.. date: 2017-10-03-01-01-52
+.. nonce: uKvPYA
+.. section: Build
+
+Fix building the PDF documentation with newer versions of Sphinx.
--- /dev/null
+.. bpo: 29781
+.. date: 2017-09-05-15-26-30
+.. nonce: LwYtBP
+.. release date: 2017-09-18
+.. section: Security
+
+SSLObject.version() now correctly returns None when handshake over BIO has
+not been performed yet.
+
+..
+
+.. bpo: 30947
+.. date: 2017-08-16-16-35-59
+.. nonce: iNMmm4
+.. section: Security
+
+Upgrade libexpat embedded copy from version 2.2.1 to 2.2.3 to get security
+fixes.
+
+..
+
+.. bpo: 31471
+.. date: 2017-09-14-19-47-57
+.. nonce: 0yiA5Q
+.. section: Core and Builtins
+
+Fix an assertion failure in `subprocess.Popen()` on Windows, in case the env
+argument has a bad keys() method. Patch by Oren Milman.
+
+..
+
+.. bpo: 31418
+.. date: 2017-09-13-13-03-52
+.. nonce: rS-FlC
+.. section: Core and Builtins
+
+Fix an assertion failure in `PyErr_WriteUnraisable()` in case of an
+exception with a bad ``__module__`` attribute. Patch by Oren Milman.
+
+..
+
+.. bpo: 31416
+.. date: 2017-09-11-12-54-35
+.. nonce: 2hlQFd
+.. section: Core and Builtins
+
+Fix assertion failures in case of a bad warnings.filters or
+warnings.defaultaction. Patch by Oren Milman.
+
+..
+
+.. bpo: 31411
+.. date: 2017-09-11-08-50-41
+.. nonce: HZz82I
+.. section: Core and Builtins
+
+Raise a TypeError instead of SystemError in case warnings.onceregistry is
+not a dictionary. Patch by Oren Milman.
+
+..
+
+.. bpo: 31373
+.. date: 2017-09-06-15-25-59
+.. nonce: dC4jd4
+.. section: Core and Builtins
+
+Fix several possible instances of undefined behavior due to floating-point
+demotions.
+
+..
+
+.. bpo: 30465
+.. date: 2017-09-06-10-47-29
+.. nonce: oe-3GD
+.. section: Core and Builtins
+
+Location information (``lineno`` and ``col_offset``) in f-strings is now
+(mostly) correct. This fixes tools like flake8 from showing warnings on the
+wrong line (typically the first line of the file).
+
+..
+
+.. bpo: 31343
+.. date: 2017-09-04-14-57-27
+.. nonce: Kl_fS5
+.. section: Core and Builtins
+
+Include sys/sysmacros.h for major(), minor(), and makedev(). GNU C libray
+plans to remove the functions from sys/types.h.
+
+..
+
+.. bpo: 31291
+.. date: 2017-08-28-11-51-29
+.. nonce: t8QggK
+.. section: Core and Builtins
+
+Fix an assertion failure in `zipimport.zipimporter.get_data` on Windows,
+when the return value of ``pathname.replace('/','\\')`` isn't a string.
+Patch by Oren Milman.
+
+..
+
+.. bpo: 31271
+.. date: 2017-08-25-20-43-22
+.. nonce: YMduKF
+.. section: Core and Builtins
+
+Fix an assertion failure in the write() method of `io.TextIOWrapper`, when
+the encoder doesn't return a bytes object. Patch by Oren Milman.
+
+..
+
+.. bpo: 31243
+.. date: 2017-08-24-13-34-49
+.. nonce: dRJzqR
+.. section: Core and Builtins
+
+Fix a crash in some methods of `io.TextIOWrapper`, when the decoder's state
+is invalid. Patch by Oren Milman.
+
+..
+
+.. bpo: 30721
+.. date: 2017-08-18-15-15-20
+.. nonce: Hmc56z
+.. section: Core and Builtins
+
+``print`` now shows correct usage hint for using Python 2 redirection
+syntax. Patch by Sanyam Khurana.
+
+..
+
+.. bpo: 31070
+.. date: 2017-08-09-09-40-54
+.. nonce: oDyLiI
+.. section: Core and Builtins
+
+Fix a race condition in importlib _get_module_lock().
+
+..
+
+.. bpo: 31095
+.. date: 2017-08-01-18-48-30
+.. nonce: bXWZDb
+.. section: Core and Builtins
+
+Fix potential crash during GC caused by ``tp_dealloc`` which doesn't call
+``PyObject_GC_UnTrack()``.
+
+..
+
+.. bpo: 31071
+.. date: 2017-07-31-13-28-53
+.. nonce: P9UBDy
+.. section: Core and Builtins
+
+Avoid masking original TypeError in call with * unpacking when other
+arguments are passed.
+
+..
+
+.. bpo: 30978
+.. date: 2017-07-21-07-39-05
+.. nonce: f0jODc
+.. section: Core and Builtins
+
+str.format_map() now passes key lookup exceptions through. Previously any
+exception was replaced with a KeyError exception.
+
+..
+
+.. bpo: 30808
+.. date: 2017-07-17-12-12-59
+.. nonce: bA3zOv
+.. section: Core and Builtins
+
+Use _Py_atomic API for concurrency-sensitive signal state.
+
+..
+
+.. bpo: 30876
+.. date: 2017-07-11-06-31-32
+.. nonce: x35jZX
+.. section: Core and Builtins
+
+Relative import from unloaded package now reimports the package instead of
+failing with SystemError. Relative import from non-package now fails with
+ImportError rather than SystemError.
+
+..
+
+.. bpo: 30703
+.. date: 2017-06-28-21-07-32
+.. nonce: ULCdFp
+.. section: Core and Builtins
+
+Improve signal delivery.
+Avoid using Py_AddPendingCall from signal handler, to avoid calling
+signal-unsafe functions. The tests I'm adding here fail without the rest of
+the patch, on Linux and OS X. This means our signal delivery logic had
+defects (some signals could be lost).
+
+..
+
+.. bpo: 30765
+.. date: 2017-06-26-14-29-50
+.. nonce: Q5iBmf
+.. section: Core and Builtins
+
+Avoid blocking in pthread_mutex_lock() when PyThread_acquire_lock() is asked
+not to block.
+
+..
+
+.. bpo: 31161
+.. date: 06
+.. nonce: FcUAA0
+.. section: Core and Builtins
+
+Make sure the 'Missing parentheses' syntax error message is only applied to
+SyntaxError, not to subclasses. Patch by Martijn Pieters.
+
+..
+
+.. bpo: 30814
+.. date: 05
+.. nonce: HcYsfM
+.. section: Core and Builtins
+
+Fixed a race condition when import a submodule from a package.
+
+..
+
+.. bpo: 30597
+.. date: 04
+.. nonce: 7erHiP
+.. section: Core and Builtins
+
+``print`` now shows expected input in custom error message when used as a
+Python 2 statement. Patch by Sanyam Khurana.
+
+..
+
+.. bpo: 31499
+.. date: 2017-09-18-10-57-04
+.. nonce: BydYhf
+.. section: Library
+
+xml.etree: Fix a crash when a parser is part of a reference cycle.
+
+..
+
+.. bpo: 28556
+.. date: 2017-09-14-11-02-56
+.. nonce: EUOiYs
+.. section: Library
+
+typing.get_type_hints now finds the right globalns for classes and modules
+by default (when no ``globalns`` was specified by the caller).
+
+..
+
+.. bpo: 28556
+.. date: 2017-09-13-23-27-39
+.. nonce: UmTQvv
+.. section: Library
+
+Speed improvements to the ``typing`` module. Original PRs by Ivan
+Levkivskyi and Mitar.
+
+..
+
+.. bpo: 31544
+.. date: 2017-09-13-19-55-35
+.. nonce: beTh6t
+.. section: Library
+
+The C accelerator module of ElementTree ignored exceptions raised when
+looking up TreeBuilder target methods in XMLParser().
+
+..
+
+.. bpo: 31234
+.. date: 2017-09-13-18-05-56
+.. nonce: lGkcPg
+.. section: Library
+
+socket.create_connection() now fixes manually a reference cycle: clear the
+variable storing the last exception on success.
+
+..
+
+.. bpo: 31457
+.. date: 2017-09-13-13-33-39
+.. nonce: bIVBtI
+.. section: Library
+
+LoggerAdapter objects can now be nested.
+
+..
+
+.. bpo: 31400
+.. date: 2017-09-08-14-19-57
+.. nonce: YOTPKi
+.. section: Library
+
+Improves SSL error handling to avoid losing error numbers.
+
+..
+
+.. bpo: 28958
+.. date: 2017-09-06-19-41-01
+.. nonce: x4-K5F
+.. section: Library
+
+ssl.SSLContext() now uses OpenSSL error information when a context cannot be
+instantiated.
+
+..
+
+.. bpo: 27340
+.. date: 2017-09-06-06-50-41
+.. nonce: GgekV5
+.. section: Library
+
+SSLSocket.sendall() now uses memoryview to create slices of data. This fixes
+support for all bytes-like object. It is also more efficient and avoids
+costly copies.
+
+..
+
+.. bpo: 31178
+.. date: 2017-09-05-14-55-28
+.. nonce: JrSFo7
+.. section: Library
+
+Fix string concatenation bug in rare error path in the subprocess module
+
+..
+
+.. bpo: 31350
+.. date: 2017-09-05-10-30-48
+.. nonce: dXJ-7N
+.. section: Library
+
+Micro-optimize :func:`asyncio._get_running_loop` to become up to 10% faster.
+
+..
+
+.. bpo: 31170
+.. date: 2017-09-04-23-41-35
+.. nonce: QGmJ1t
+.. section: Library
+
+expat: Update libexpat from 2.2.3 to 2.2.4. Fix copying of partial
+characters for UTF-8 input (libexpat bug 115):
+https://github.com/libexpat/libexpat/issues/115
+
+..
+
+.. bpo: 29136
+.. date: 2017-09-04-16-39-49
+.. nonce: vSn1oR
+.. section: Library
+
+Add TLS 1.3 cipher suites and OP_NO_TLSv1_3.
+
+..
+
+.. bpo: 29212
+.. date: 2017-09-03-14-31-00
+.. nonce: bicycl
+.. section: Library
+
+Fix concurrent.futures.thread.ThreadPoolExecutor threads to have a non
+repr() based thread name by default when no thread_name_prefix is supplied.
+They will now identify themselves as "ThreadPoolExecutor-y_n".
+
+..
+
+.. bpo: 9146
+.. date: 2017-09-03-14-10-00
+.. nonce: _-oo-_
+.. section: Library
+
+Fix a segmentation fault in _hashopenssl when standard hash functions such
+as md5 are not available in the linked OpenSSL library. As in some special
+FIPS-140 build environments.
+
+..
+
+.. bpo: 27144
+.. date: 2017-08-30-11-26-14
+.. nonce: PEDJsE
+.. section: Library
+
+The ``map()`` and ``as_completed()`` iterators in ``concurrent.futures`` now
+avoid keeping a reference to yielded objects.
+
+..
+
+.. bpo: 10746
+.. date: 2017-08-28-13-01-05
+.. nonce: nmAvfu
+.. section: Library
+
+Fix ctypes producing wrong :pep:`3118` type codes for integer types.
+
+..
+
+.. bpo: 22536
+.. date: 2017-08-23
+.. nonce: _narf_
+.. section: Library
+
+The subprocess module now sets the filename when FileNotFoundError is raised
+on POSIX systems due to the executable or cwd not being found.
+
+..
+
+.. bpo: 31249
+.. date: 2017-08-22-12-44-48
+.. nonce: STPbb9
+.. section: Library
+
+concurrent.futures: WorkItem.run() used by ThreadPoolExecutor now breaks a
+reference cycle between an exception object and the WorkItem object.
+
+..
+
+.. bpo: 31247
+.. date: 2017-08-21-17-50-27
+.. nonce: 8S3zJp
+.. section: Library
+
+xmlrpc.server now explicitly breaks reference cycles when using
+sys.exc_info() in code handling exceptions.
+
+..
+
+.. bpo: 30102
+.. date: 2017-08-16-21-14-31
+.. nonce: 1sPqmc
+.. section: Library
+
+The ssl and hashlib modules now call OPENSSL_add_all_algorithms_noconf() on
+OpenSSL < 1.1.0. The function detects CPU features and enables optimizations
+on some CPU architectures such as POWER8. Patch is based on research from
+Gustavo Serra Scalet.
+
+..
+
+.. bpo: 31185
+.. date: 2017-08-11-19-30-00
+.. nonce: i6TPgL
+.. section: Library
+
+Fixed miscellaneous errors in asyncio speedup module.
+
+..
+
+.. bpo: 31135
+.. date: 2017-08-08-14-44-37
+.. nonce: HH94xR
+.. section: Library
+
+ttk: fix the destroy() method of LabeledScale and OptionMenu classes. Call
+the parent destroy() method even if the used attribute doesn't exist. The
+LabeledScale.destroy() method now also explicitly clears label and scale
+attributes to help the garbage collector to destroy all widgets.
+
+..
+
+.. bpo: 31107
+.. date: 2017-08-02-12-48-15
+.. nonce: 1t2hn5
+.. section: Library
+
+Fix `copyreg._slotnames()` mangled attribute calculation for classes whose
+name begins with an underscore. Patch by Shane Harvey.
+
+..
+
+.. bpo: 31061
+.. date: 2017-08-01-09-32-58
+.. nonce: husAYX
+.. section: Library
+
+Fixed a crash when using asyncio and threads.
+
+..
+
+.. bpo: 30502
+.. date: 2017-07-27-11-33-58
+.. nonce: GJlfU8
+.. section: Library
+
+Fix handling of long oids in ssl. Based on patch by Christian Heimes.
+
+..
+
+.. bpo: 30119
+.. date: 2017-07-26-15-15-00
+.. nonce: DZ6C_S
+.. section: Library
+
+ftplib.FTP.putline() now throws ValueError on commands that contains CR or
+LF. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 30595
+.. date: 2017-07-26-04-46-12
+.. nonce: -zJ7d8
+.. section: Library
+
+multiprocessing.Queue.get() with a timeout now polls its reader in
+non-blocking mode if it succeeded to acquire the lock but the acquire took
+longer than the timeout.
+
+..
+
+.. bpo: 29403
+.. date: 2017-07-20-02-29-49
+.. nonce: 3RinCV
+.. section: Library
+
+Fix ``unittest.mock``'s autospec to not fail on method-bound builtin
+functions. Patch by Aaron Gallagher.
+
+..
+
+.. bpo: 30961
+.. date: 2017-07-18-23-47-51
+.. nonce: 064jz0
+.. section: Library
+
+Fix decrementing a borrowed reference in tracemalloc.
+
+..
+
+.. bpo: 25684
+.. date: 2017-07-17-11-35-00
+.. nonce: usELVx
+.. section: Library
+
+Change ``ttk.OptionMenu`` radiobuttons to be unique across instances of
+``OptionMenu``.
+
+..
+
+.. bpo: 30886
+.. date: 2017-07-10-12-14-22
+.. nonce: nqQj34
+.. section: Library
+
+Fix multiprocessing.Queue.join_thread(): it now waits until the thread
+completes, even if the thread was started by the same process which created
+the queue.
+
+..
+
+.. bpo: 29854
+.. date: 2017-07-07-02-18-57
+.. nonce: J8wKb_
+.. section: Library
+
+Fix segfault in readline when using readline's history-size option. Patch
+by Nir Soffer.
+
+..
+
+.. bpo: 30319
+.. date: 2017-07-04-13-48-21
+.. nonce: hg_3TX
+.. section: Library
+
+socket.close() now ignores ECONNRESET error.
+
+..
+
+.. bpo: 30828
+.. date: 2017-07-04-13-10-52
+.. nonce: CLvEvV
+.. section: Library
+
+Fix out of bounds write in `asyncio.CFuture.remove_done_callback()`.
+
+..
+
+.. bpo: 30807
+.. date: 2017-06-29-22-04-44
+.. nonce: sLtjY-
+.. section: Library
+
+signal.setitimer() may disable the timer when passed a tiny value.
+Tiny values (such as 1e-6) are valid non-zero values for setitimer(), which
+is specified as taking microsecond-resolution intervals. However, on some
+platform, our conversion routine could convert 1e-6 into a zero interval,
+therefore disabling the timer instead of (re-)scheduling it.
+
+..
+
+.. bpo: 30441
+.. date: 2017-06-29-14-25-14
+.. nonce: 3Wh9kc
+.. section: Library
+
+Fix bug when modifying os.environ while iterating over it
+
+..
+
+.. bpo: 30532
+.. date: 2017-06-26-11-01-59
+.. nonce: qTeL1o
+.. section: Library
+
+Fix email header value parser dropping folding white space in certain cases.
+
+..
+
+.. bpo: 30879
+.. date: 03
+.. nonce: N3KI-o
+.. section: Library
+
+os.listdir() and os.scandir() now emit bytes names when called with
+bytes-like argument.
+
+..
+
+.. bpo: 30746
+.. date: 02
+.. nonce: 7drQI0
+.. section: Library
+
+Prohibited the '=' character in environment variable names in
+``os.putenv()`` and ``os.spawn*()``.
+
+..
+
+.. bpo: 29755
+.. date: 01
+.. nonce: diQcY_
+.. section: Library
+
+Fixed the lgettext() family of functions in the gettext module. They now
+always return bytes.
+
+..
+
+.. bpo: 31294
+.. date: 2017-09-07-20-49-09
+.. nonce: WgI18w
+.. section: Documentation
+
+Fix incomplete code snippet in the ZeroMQSocketListener and
+ZeroMQSocketHandler examples and adapt them to Python 3.
+
+..
+
+.. bpo: 21649
+.. date: 2017-09-06-10-11-57
+.. nonce: EUvqA9
+.. section: Documentation
+
+Add RFC 7525 and Mozilla server side TLS links to SSL documentation.
+
+..
+
+.. bpo: 30803
+.. date: 2017-07-29-14-55-50
+.. nonce: 6hutqQ
+.. section: Documentation
+
+Clarify doc on truth value testing. Original patch by Peter Thomassen.
+
+..
+
+.. bpo: 31320
+.. date: 2017-09-05-14-23-35
+.. nonce: JRDHx7
+.. section: Tests
+
+Silence traceback in test_ssl
+
+..
+
+.. bpo: 25674
+.. date: 2017-09-04-13-03-55
+.. nonce: whVTXh
+.. section: Tests
+
+Remove sha256.tbs-internet.com ssl test
+
+..
+
+.. bpo: 30715
+.. date: 2017-07-25-15-27-44
+.. nonce: Sp7bTF
+.. section: Tests
+
+Address ALPN callback changes for OpenSSL 1.1.0f. The latest version behaves
+like OpenSSL 1.0.2 and no longer aborts handshake.
+
+..
+
+.. bpo: 30822
+.. date: 2017-07-20-14-29-54
+.. nonce: X0wREo
+.. section: Tests
+
+regrtest: Exclude tzdata from regrtest --all. When running the test suite
+using --use=all / -u all, exclude tzdata since it makes test_datetime too
+slow (15-20 min on some buildbots) which then times out on some buildbots.
+Fix also regrtest command line parser to allow passing -u extralargefile to
+run test_zipfile64.
+
+..
+
+.. bpo: 30854
+.. date: 2017-07-05-16-54-59
+.. nonce: sPADRI
+.. section: Build
+
+Fix compile error when compiling --without-threads. Patch by Masayuki
+Yamamoto.
+
+..
+
+.. bpo: 30389
+.. date: 2017-09-06-17-14-54
+.. nonce: 9Dizrx
+.. section: Windows
+
+Adds detection of Visual Studio 2017 to distutils on Windows.
+
+..
+
+.. bpo: 31340
+.. date: 2017-09-04-13-19-05
+.. nonce: MbkzLi
+.. section: Windows
+
+Change to building with MSVC v141 (included with Visual Studio 2017)
+
+..
+
+.. bpo: 30581
+.. date: 2017-08-04-10-05-19
+.. nonce: OQhR7l
+.. section: Windows
+
+os.cpu_count() now returns the correct number of processors on Windows when
+the number of logical processors is greater than 64.
+
+..
+
+.. bpo: 30731
+.. date: 2017-07-13-11-22-53
+.. nonce: nmMDwI
+.. section: Windows
+
+Add a missing xmlns to python.manifest so that it matches the schema.
+
+..
+
+.. bpo: 31493
+.. date: 2017-09-16-23-43-39
+.. nonce: nmHMCR
+.. section: IDLE
+
+IDLE code context -- fix code update and font update timers.
+Canceling timers prevents a warning message when test_idle completes.
+
+..
+
+.. bpo: 31488
+.. date: 2017-09-16-01-21-20
+.. nonce: 0rtXIT
+.. section: IDLE
+
+IDLE - Update non-key options in former extension classes. When applying
+configdialog changes, call .reload for each feature class. Change ParenMatch
+so updated options affect existing instances attached to existing editor
+windows.
+
+..
+
+.. bpo: 31477
+.. date: 2017-09-15-12-38-47
+.. nonce: n__6sa
+.. section: IDLE
+
+IDLE - Improve rstrip entry in doc. Strip trailing whitespace strips more
+than blank spaces. Multiline string literals are not skipped.
+
+..
+
+.. bpo: 31480
+.. date: 2017-09-14-17-53-53
+.. nonce: 4WJ0pl
+.. section: IDLE
+
+IDLE - make tests pass with zzdummy extension disabled by default.
+
+..
+
+.. bpo: 31421
+.. date: 2017-09-12-08-38-27
+.. nonce: mYfQNq
+.. section: IDLE
+
+Document how IDLE runs tkinter programs. IDLE calls tcl/tk update in the
+background in order to make live
+interaction and experimentation with tkinter applications much easier.
+
+..
+
+.. bpo: 31414
+.. date: 2017-09-11-15-46-05
+.. nonce: wiepgK
+.. section: IDLE
+
+IDLE -- fix tk entry box tests by deleting first. Adding to an int entry is
+not the same as deleting and inserting because int('') will fail.
+
+..
+
+.. bpo: 31051
+.. date: 2017-08-30-00-06-58
+.. nonce: 50Jp_Q
+.. section: IDLE
+
+Rearrange IDLE configdialog GenPage into Window, Editor, and Help sections.
+
+..
+
+.. bpo: 30617
+.. date: 2017-08-27-16-49-36
+.. nonce: UHnswr
+.. section: IDLE
+
+IDLE - Add docstrings and tests for outwin subclass of editor.
+Move some data and functions from the class to module level. Patch by Cheryl
+Sabella.
+
+..
+
+.. bpo: 31287
+.. date: 2017-08-27-15-31-33
+.. nonce: aZERfI
+.. section: IDLE
+
+IDLE - Do not modify tkinter.message in test_configdialog.
+
+..
+
+.. bpo: 27099
+.. date: 2017-08-24-13-48-16
+.. nonce: rENefC
+.. section: IDLE
+
+Convert IDLE's built-in 'extensions' to regular features.
+About 10 IDLE features were implemented as supposedly optional extensions.
+Their different behavior could be confusing or worse for users and not good
+for maintenance. Hence the conversion.
+The main difference for users is that user configurable key bindings for
+builtin features are now handled uniformly. Now, editing a binding in a
+keyset only affects its value in the keyset. All bindings are defined
+together in the system-specific default keysets in config-extensions.def.
+All custom keysets are saved as a whole in config-extension.cfg. All take
+effect as soon as one clicks Apply or Ok.
+The affected events are '<<force-open-completions>>', '<<expand-word>>',
+'<<force-open-calltip>>', '<<flash-paren>>', '<<format-paragraph>>',
+'<<run-module>>', '<<check-module>>', and '<<zoom-height>>'. Any (global)
+customizations made before 3.6.3 will not affect their keyset-specific
+customization after 3.6.3. and vice versa.
+Initial patch by Charles Wohlganger.
+
+..
+
+.. bpo: 31206
+.. date: 2017-08-18-14-13-42
+.. nonce: F1-tKK
+.. section: IDLE
+
+IDLE: Factor HighPage(Frame) class from ConfigDialog. Patch by Cheryl
+Sabella.
+
+..
+
+.. bpo: 31001
+.. date: 2017-08-17-15-00-20
+.. nonce: KLxYHC
+.. section: IDLE
+
+Add tests for configdialog highlight tab. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31205
+.. date: 2017-08-15-12-58-23
+.. nonce: iuziZ5
+.. section: IDLE
+
+IDLE: Factor KeysPage(Frame) class from ConfigDialog. The slightly modified
+tests continue to pass. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31130
+.. date: 2017-08-07-14-02-56
+.. nonce: FbsC7f
+.. section: IDLE
+
+IDLE -- stop leaks in test_configdialog. Initial patch by Victor Stinner.
+
+..
+
+.. bpo: 31002
+.. date: 2017-08-03-17-54-02
+.. nonce: kUSgTE
+.. section: IDLE
+
+Add tests for configdialog keys tab. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 19903
+.. date: 2017-08-03-14-08-42
+.. nonce: sqE1FS
+.. section: IDLE
+
+IDLE: Calltips use `inspect.signature` instead of `inspect.getfullargspec`.
+This improves calltips for builtins converted to use Argument Clinic. Patch
+by Louie Lu.
+
+..
+
+.. bpo: 31083
+.. date: 2017-07-31-23-20-51
+.. nonce: 991FXm
+.. section: IDLE
+
+IDLE - Add an outline of a TabPage class in configdialog. Update existing
+classes to match outline. Initial patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31050
+.. date: 2017-07-30-17-39-59
+.. nonce: AXR3kP
+.. section: IDLE
+
+Factor GenPage(Frame) class from ConfigDialog. The slightly modified tests
+continue to pass. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31004
+.. date: 2017-07-30-01-00-58
+.. nonce: m8cc1t
+.. section: IDLE
+
+IDLE - Factor FontPage(Frame) class from ConfigDialog.
+Slightly modified tests continue to pass. Fix General tests. Patch mostly by
+Cheryl Sabella.
+
+..
+
+.. bpo: 30781
+.. date: 2017-07-28-18-59-06
+.. nonce: ud5m18
+.. section: IDLE
+
+IDLE - Use ttk widgets in ConfigDialog. Patches by Terry Jan Reedy and
+Cheryl Sabella.
+
+..
+
+.. bpo: 31060
+.. date: 2017-07-27-14-48-42
+.. nonce: GdY_VY
+.. section: IDLE
+
+IDLE - Finish rearranging methods of ConfigDialog Grouping methods
+pertaining to each tab and the buttons will aid writing tests and improving
+the tabs and will enable splitting the groups into classes.
+
+..
+
+.. bpo: 30853
+.. date: 2017-07-27-10-01-14
+.. nonce: enPvvc
+.. section: IDLE
+
+IDLE -- Factor a VarTrace class out of ConfigDialog.
+Instance tracers manages pairs consisting of a tk variable and a callback
+function. When tracing is turned on, setting the variable calls the
+function. Test coverage for the new class is 100%.
+
+..
+
+.. bpo: 31003
+.. date: 2017-07-25-01-28-35
+.. nonce: bYINVH
+.. section: IDLE
+
+IDLE: Add more tests for General tab.
+
+..
+
+.. bpo: 30993
+.. date: 2017-07-22-18-08-41
+.. nonce: 34vJkB
+.. section: IDLE
+
+IDLE - Improve configdialog font page and tests.
+In configdialog: Document causal pathways in create_font_tab docstring.
+Simplify some attribute names. Move set_samples calls to var_changed_font
+(idea from Cheryl Sabella). Move related functions to positions after the
+create widgets function.
+In test_configdialog: Fix test_font_set so not order dependent. Fix renamed
+test_indent_scale so it tests the widget. Adjust tests for movement of
+set_samples call. Add tests for load functions. Put all font tests in one
+class and tab indent tests in another. Except for two lines, these tests
+completely cover the related functions.
+
+..
+
+.. bpo: 30981
+.. date: 2017-07-21-01-55-14
+.. nonce: ZFvQPt
+.. section: IDLE
+
+IDLE -- Add more configdialog font page tests.
+
+..
+
+.. bpo: 28523
+.. date: 2017-07-21-00-54-52
+.. nonce: OPcqYJ
+.. section: IDLE
+
+IDLE: replace 'colour' with 'color' in configdialog.
+
+..
+
+.. bpo: 30917
+.. date: 2017-07-17-23-35-57
+.. nonce: hSiuuO
+.. section: IDLE
+
+Add tests for idlelib.config.IdleConf. Increase coverage from 46% to 96%.
+Patch by Louie Lu.
+
+..
+
+.. bpo: 30934
+.. date: 2017-07-15-22-26-57
+.. nonce: BanuSB
+.. section: IDLE
+
+Document coverage details for idlelib tests.
+Add section to idlelib/idle-test/README.txt.
+Include check that branches are taken both ways.
+Exclude IDLE-specific code that does not run during unit tests.
+
+..
+
+.. bpo: 30913
+.. date: 2017-07-13-23-07-33
+.. nonce: aezn_e
+.. section: IDLE
+
+IDLE: Document ConfigDialog tk Vars, methods, and widgets in docstrings This
+will facilitate improving the dialog and splitting up the class. Original
+patch by Cheryl Sabella.
+
+..
+
+.. bpo: 30899
+.. date: 2017-07-11-02-26-17
+.. nonce: SQmVO8
+.. section: IDLE
+
+IDLE: Add tests for ConfigParser subclasses in config. Patch by Louie Lu.
+
+..
+
+.. bpo: 30881
+.. date: 2017-07-11-02-21-42
+.. nonce: 4KAq_9
+.. section: IDLE
+
+IDLE: Add docstrings to browser.py. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 30851
+.. date: 2017-07-09-23-53-00
+.. nonce: AHXBYa
+.. section: IDLE
+
+IDLE: Remove unused variables in configdialog. One is a duplicate, one is
+set but cannot be altered by users. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 30870
+.. date: 2017-07-08-17-57-04
+.. nonce: IcR2pf
+.. section: IDLE
+
+IDLE: In Settings dialog, select font with Up, Down keys as well as mouse.
+Initial patch by Louie Lu.
+
+..
+
+.. bpo: 8231
+.. date: 2017-07-07-21-10-55
+.. nonce: yEge3L
+.. section: IDLE
+
+IDLE: call config.IdleConf.GetUserCfgDir only once.
+
+..
+
+.. bpo: 30779
+.. date: 2017-07-07-20-26-37
+.. nonce: 8KXEXN
+.. section: IDLE
+
+IDLE: Factor ConfigChanges class from configdialog, put in config; test. *
+In config, put dump test code in a function; run it and unittest in 'if
+__name__ == '__main__'. * Add class config.ConfigChanges based on
+changes_class_v4.py on bpo issue. * Add class test_config.ChangesTest,
+partly using configdialog_tests_v1.py. * Revise configdialog to use
+ConfigChanges; see tracker msg297804. * Revise test_configdialog to match
+configdialog changes. * Remove configdialog functions unused or moved to
+ConfigChanges. Cheryl Sabella contributed parts of the patch.
+
+..
+
+.. bpo: 30777
+.. date: 2017-07-04-22-45-46
+.. nonce: uxzlMB
+.. section: IDLE
+
+IDLE: configdialog - Add docstrings and fix comments. Patch by Cheryl
+Sabella.
+
+..
+
+.. bpo: 30495
+.. date: 2017-06-29-18-23-06
+.. nonce: qIWgc4
+.. section: IDLE
+
+IDLE: Improve textview with docstrings, PEP8 names, and more tests. Patch by
+Cheryl Sabella.
+
+..
+
+.. bpo: 30723
+.. date: 2017-06-27-19-05-40
+.. nonce: rQh06y
+.. section: IDLE
+
+IDLE: Make several improvements to parenmatch. Add 'parens' style to
+highlight both opener and closer. Make 'default' style, which is not
+default, a synonym for 'opener'. Make time-delay work the same with all
+styles. Add help for config dialog extensions tab, including help for
+parenmatch. Add new tests. Original patch by Charles Wohlganger.
+
+..
+
+.. bpo: 30674
+.. date: 2017-06-27-01-40-34
+.. nonce: ppK_q8
+.. section: IDLE
+
+IDLE: add docstrings to grep module. Patch by Cheryl Sabella
+
+..
+
+.. bpo: 21519
+.. date: 2017-06-27-00-29-56
+.. nonce: fTj9T0
+.. section: IDLE
+
+IDLE's basic custom key entry dialog now detects duplicates properly.
+Original patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 29910
+.. date: 2017-06-26-22-45-27
+.. nonce: mqHh7u
+.. section: IDLE
+
+IDLE no longer deletes a character after commenting out a region by a key
+shortcut. Add ``return 'break'`` for this and other potential conflicts
+between IDLE and default key bindings.
+
+..
+
+.. bpo: 30728
+.. date: 2017-06-26-15-47-13
+.. nonce: qH4TGL
+.. section: IDLE
+
+Review and change idlelib.configdialog names. Lowercase method and attribute
+names. Replace 'colour' with 'color', expand overly cryptic names, delete
+unneeded underscores. Replace ``import *`` with specific imports. Patches by
+Cheryl Sabella.
+
+..
+
+.. bpo: 6739
+.. date: 2017-06-26-00-28-59
+.. nonce: x5MfhB
+.. section: IDLE
+
+IDLE: Verify user-entered key sequences by trying to bind them with tk. Add
+tests for all 3 validation functions. Original patch by G Polo. Tests added
+by Cheryl Sabella.
+
+..
+
+.. bpo: 30983
+.. date: 2017-08-18-17-19-23
+.. nonce: ggGz9z
+.. section: Tools/Demos
+
+gdb integration commands (py-bt, etc.) work on optimized shared builds now,
+too. :pep:`523` introduced _PyEval_EvalFrameDefault which inlines
+PyEval_EvalFrameEx on non-debug shared builds. This broke the ability to
+use py-bt, py-up, and a few other Python-specific gdb integrations. The
+problem is fixed by only looking for _PyEval_EvalFrameDefault frames in
+python-gdb.py. Original patch by Bruno "Polaco" Penteado.
--- /dev/null
+.. bpo: 0
+.. date: 2017-12-18
+.. no changes: True
+.. nonce: qH8KPG
+.. release date: 2017-12-18
+.. section: Library
+
+There were no new code changes in version 3.6.4 since v3.6.4rc1.
--- /dev/null
+.. bpo: 32176
+.. date: 2017-12-02-21-37-22
+.. nonce: Wt25-N
+.. release date: 2017-12-05
+.. section: Core and Builtins
+
+co_flags.CO_NOFREE is now always set correctly by the code object
+constructor based on freevars and cellvars, rather than needing to be set
+correctly by the caller. This ensures it will be cleared automatically when
+additional cell references are injected into a modified code object and
+function.
+
+..
+
+.. bpo: 31949
+.. date: 2017-11-05-16-11-07
+.. nonce: 2yNC_z
+.. section: Core and Builtins
+
+Fixed several issues in printing tracebacks (PyTraceBack_Print()).
+Setting sys.tracebacklimit to 0 or less now suppresses printing tracebacks.
+Setting sys.tracebacklimit to None now causes using the default limit.
+Setting sys.tracebacklimit to an integer larger than LONG_MAX now means using
+the limit LONG_MAX rather than the default limit.
+Fixed integer overflows in the case of more than ``2**31`` traceback items on
+Windows.
+Fixed output errors handling.
+
+..
+
+.. bpo: 30696
+.. date: 2017-10-28-22-06-03
+.. nonce: lhC3HE
+.. section: Core and Builtins
+
+Fix the interactive interpreter looping endlessly when no memory.
+
+..
+
+.. bpo: 20047
+.. date: 2017-10-28-19-11-05
+.. nonce: GuNAto
+.. section: Core and Builtins
+
+Bytearray methods partition() and rpartition() now accept only bytes-like
+objects as separator, as documented. In particular they now raise TypeError
+rather of returning a bogus result when an integer is passed as a separator.
+
+..
+
+.. bpo: 31852
+.. date: 2017-10-27-19-18-44
+.. nonce: P_4cVr
+.. section: Core and Builtins
+
+Fix a segmentation fault caused by a combination of the async soft keyword
+and continuation lines.
+
+..
+
+.. bpo: 21720
+.. date: 2017-10-25-15-51-37
+.. nonce: BwIKLP
+.. section: Core and Builtins
+
+BytesWarning no longer emitted when the *fromlist* argument of
+``__import__()`` or the ``__all__`` attribute of the module contain bytes
+instances.
+
+..
+
+.. bpo: 31825
+.. date: 2017-10-20-14-07-46
+.. nonce: gJvmGW
+.. section: Core and Builtins
+
+Fixed OverflowError in the 'unicode-escape' codec and in
+codecs.escape_decode() when decode an escaped non-ascii byte.
+
+..
+
+.. bpo: 28603
+.. date: 2017-10-17-13-29-19
+.. nonce: _-oia3
+.. section: Core and Builtins
+
+Print the full context/cause chain of exceptions on interpreter exit, even
+if an exception in the chain is unhashable or compares equal to later ones.
+Patch by Zane Bitter.
+
+..
+
+.. bpo: 31786
+.. date: 2017-10-15-23-44-57
+.. nonce: XwdEP4
+.. section: Core and Builtins
+
+Fix timeout rounding in the select module to round correctly negative
+timeouts between -1.0 and 0.0. The functions now block waiting for events as
+expected. Previously, the call was incorrectly non-blocking. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 31642
+.. date: 2017-10-08-10-00-55
+.. nonce: 1IKqgs
+.. section: Core and Builtins
+
+Restored blocking "from package import module" by setting
+sys.modules["package.module"] to None.
+
+..
+
+.. bpo: 31626
+.. date: 2017-10-01-15-48-03
+.. nonce: reLPxY
+.. section: Core and Builtins
+
+Fixed a bug in debug memory allocator. There was a write to freed memory
+after shrinking a memory block.
+
+..
+
+.. bpo: 31619
+.. date: 2017-09-29-20-32-24
+.. nonce: 6gQ1kv
+.. section: Core and Builtins
+
+Fixed a ValueError when convert a string with large number of underscores to
+integer with binary base.
+
+..
+
+.. bpo: 31592
+.. date: 2017-09-26-16-05-04
+.. nonce: IFBZj9
+.. section: Core and Builtins
+
+Fixed an assertion failure in Python parser in case of a bad
+`unicodedata.normalize()`. Patch by Oren Milman.
+
+..
+
+.. bpo: 31588
+.. date: 2017-09-26-13-03-16
+.. nonce: wT9Iy7
+.. section: Core and Builtins
+
+Raise a `TypeError` with a helpful error message when class creation fails
+due to a metaclass with a bad ``__prepare__()`` method. Patch by Oren
+Milman.
+
+..
+
+.. bpo: 31566
+.. date: 2017-09-24-09-57-04
+.. nonce: OxwINs
+.. section: Core and Builtins
+
+Fix an assertion failure in `_warnings.warn()` in case of a bad ``__name__``
+global. Patch by Oren Milman.
+
+..
+
+.. bpo: 31505
+.. date: 2017-09-18-12-07-39
+.. nonce: VomaFa
+.. section: Core and Builtins
+
+Fix an assertion failure in `json`, in case `_json.make_encoder()` received
+a bad `encoder()` argument. Patch by Oren Milman.
+
+..
+
+.. bpo: 31492
+.. date: 2017-09-16-22-49-16
+.. nonce: RtyteL
+.. section: Core and Builtins
+
+Fix assertion failures in case of failing to import from a module with a bad
+``__name__`` attribute, and in case of failing to access an attribute of
+such a module. Patch by Oren Milman.
+
+..
+
+.. bpo: 31490
+.. date: 2017-09-16-13-32-35
+.. nonce: r7m2sj
+.. section: Core and Builtins
+
+Fix an assertion failure in `ctypes` class definition, in case the class has
+an attribute whose name is specified in ``_anonymous_`` but not in
+``_fields_``. Patch by Oren Milman.
+
+..
+
+.. bpo: 31478
+.. date: 2017-09-15-09-13-07
+.. nonce: o06iKD
+.. section: Core and Builtins
+
+Fix an assertion failure in `_random.Random.seed()` in case the argument has
+a bad ``__abs__()`` method. Patch by Oren Milman.
+
+..
+
+.. bpo: 31315
+.. date: 2017-09-01-00-40-58
+.. nonce: ZX20bl
+.. section: Core and Builtins
+
+Fix an assertion failure in imp.create_dynamic(), when spec.name is not a
+string. Patch by Oren Milman.
+
+..
+
+.. bpo: 31311
+.. date: 2017-08-31-17-52-56
+.. nonce: bNE2l-
+.. section: Core and Builtins
+
+Fix a crash in the ``__setstate__()`` method of `ctypes._CData`, in case of
+a bad ``__dict__``. Patch by Oren Milman.
+
+..
+
+.. bpo: 31293
+.. date: 2017-08-28-17-51-42
+.. nonce: eMYZXj
+.. section: Core and Builtins
+
+Fix crashes in true division and multiplication of a timedelta object by a
+float with a bad as_integer_ratio() method. Patch by Oren Milman.
+
+..
+
+.. bpo: 31285
+.. date: 2017-08-27-21-18-30
+.. nonce: 7lzaKV
+.. section: Core and Builtins
+
+Fix an assertion failure in `warnings.warn_explicit`, when the return value
+of the received loader's get_source() has a bad splitlines() method. Patch
+by Oren Milman.
+
+..
+
+.. bpo: 30817
+.. date: 2017-07-01-15-11-13
+.. nonce: j7ZvN_
+.. section: Core and Builtins
+
+`PyErr_PrintEx()` clears now the ignored exception that may be raised by
+`_PySys_SetObjectId()`, for example when no memory.
+
+..
+
+.. bpo: 28556
+.. date: 2017-12-05-02-03-07
+.. nonce: 9Z_PsJ
+.. section: Library
+
+Two minor fixes for ``typing`` module: allow shallow copying instances of
+generic classes, improve interaction of ``__init_subclass__`` with generics.
+Original PRs by Ivan Levkivskyi.
+
+..
+
+.. bpo: 27240
+.. date: 2017-12-02-16-06-00
+.. nonce: Kji34M
+.. section: Library
+
+The header folding algorithm for the new email policies has been rewritten,
+which also fixes bpo-30788, bpo-31831, and bpo-32182. In particular,
+RFC2231 folding is now done correctly.
+
+..
+
+.. bpo: 32186
+.. date: 2017-11-30-20-38-16
+.. nonce: O42bVe
+.. section: Library
+
+io.FileIO.readall() and io.FileIO.read() now release the GIL when getting
+the file size. Fixed hang of all threads with inaccessible NFS server. Patch
+by Nir Soffer.
+
+..
+
+.. bpo: 12239
+.. date: 2017-11-24-14-07-55
+.. nonce: Nj3A0x
+.. section: Library
+
+Make :meth:`msilib.SummaryInformation.GetProperty` return ``None`` when the
+value of property is ``VT_EMPTY``. Initial patch by Mark Mc Mahon.
+
+..
+
+.. bpo: 31325
+.. date: 2017-11-23-22-12-11
+.. nonce: 8jAUxN
+.. section: Library
+
+Fix wrong usage of :func:`collections.namedtuple` in the
+:meth:`RobotFileParser.parse() <urllib.robotparser.RobotFileParser.parse>`
+method.
+Initial patch by Robin Wellner.
+
+..
+
+.. bpo: 12382
+.. date: 2017-11-23-21-47-36
+.. nonce: xWT9k0
+.. section: Library
+
+:func:`msilib.OpenDatabase` now raises a better exception message when it
+couldn't open or create an MSI file. Initial patch by William Tisäter.
+
+..
+
+.. bpo: 32110
+.. date: 2017-11-22-09-44-15
+.. nonce: VJa9bo
+.. section: Library
+
+``codecs.StreamReader.read(n)`` now returns not more than *n*
+characters/bytes for non-negative *n*. This makes it compatible with
+``read()`` methods of other file-like objects.
+
+..
+
+.. bpo: 32072
+.. date: 2017-11-18-21-13-52
+.. nonce: nwDV8L
+.. section: Library
+
+Fixed issues with binary plists:
+Fixed saving bytearrays.
+Identical objects will be saved only once.
+Equal references will be load as identical objects.
+Added support for saving and loading recursive data structures.
+
+..
+
+.. bpo: 32034
+.. date: 2017-11-15-13-44-28
+.. nonce: uHAOmu
+.. section: Library
+
+Make asyncio.IncompleteReadError and LimitOverrunError pickleable.
+
+..
+
+.. bpo: 32015
+.. date: 2017-11-13-17-48-33
+.. nonce: 4nqRTD
+.. section: Library
+
+Fixed the looping of asyncio in the case of reconnection the socket during
+waiting async read/write from/to the socket.
+
+..
+
+.. bpo: 32011
+.. date: 2017-11-12-20-47-59
+.. nonce: NzVDdZ
+.. section: Library
+
+Restored support of loading marshal files with the TYPE_INT64 code. These
+files can be produced in Python 2.7.
+
+..
+
+.. bpo: 31970
+.. date: 2017-11-07-14-20-09
+.. nonce: x4EN_9
+.. section: Library
+
+Reduce performance overhead of asyncio debug mode.
+
+..
+
+.. bpo: 9678
+.. date: 2017-11-03-22-05-47
+.. nonce: oD51q6
+.. section: Library
+
+Fixed determining the MAC address in the uuid module:
+Using ifconfig on NetBSD and OpenBSD.
+Using arp on Linux, FreeBSD, NetBSD and OpenBSD.
+Based on patch by Takayuki Shimizukawa.
+
+..
+
+.. bpo: 30057
+.. date: 2017-11-03-19-11-43
+.. nonce: NCaijI
+.. section: Library
+
+Fix potential missed signal in signal.signal().
+
+..
+
+.. bpo: 31933
+.. date: 2017-11-03-08-36-03
+.. nonce: UrtoMP
+.. section: Library
+
+Fix Blake2 params leaf_size and node_offset on big endian platforms. Patch
+by Jack O'Connor.
+
+..
+
+.. bpo: 31927
+.. date: 2017-11-02-18-26-40
+.. nonce: 40K6kp
+.. section: Library
+
+Fixed compilation of the socket module on NetBSD 8. Fixed assertion failure
+or reading arbitrary data when parse a AF_BLUETOOTH address on NetBSD and
+DragonFly BSD.
+
+..
+
+.. bpo: 27666
+.. date: 2017-11-01-18-13-42
+.. nonce: j2zRnF
+.. section: Library
+
+Fixed stack corruption in curses.box() and curses.ungetmouse() when the size
+of types chtype or mmask_t is less than the size of C long. curses.box()
+now accepts characters as arguments. Based on patch by Steve Fink.
+
+..
+
+.. bpo: 31897
+.. date: 2017-10-30-11-04-56
+.. nonce: yjwdEb
+.. section: Library
+
+plistlib now catches more errors when read binary plists and raises
+InvalidFileException instead of unexpected exceptions.
+
+..
+
+.. bpo: 25720
+.. date: 2017-10-29-17-52-40
+.. nonce: vSvb5h
+.. section: Library
+
+Fix the method for checking pad state of curses WINDOW. Patch by Masayuki
+Yamamoto.
+
+..
+
+.. bpo: 31893
+.. date: 2017-10-29-13-51-01
+.. nonce: 8LZKEz
+.. section: Library
+
+Fixed the layout of the kqueue_event structure on OpenBSD and NetBSD. Fixed
+the comparison of the kqueue_event objects.
+
+..
+
+.. bpo: 31891
+.. date: 2017-10-29-11-23-24
+.. nonce: 9kAPha
+.. section: Library
+
+Fixed building the curses module on NetBSD.
+
+..
+
+.. bpo: 28416
+.. date: 2017-10-23-12-05-33
+.. nonce: Ldnw8X
+.. section: Library
+
+Instances of pickle.Pickler subclass with the persistent_id() method and
+pickle.Unpickler subclass with the persistent_load() method no longer create
+reference cycles.
+
+..
+
+.. bpo: 28326
+.. date: 2017-10-22-11-06-02
+.. nonce: rxh7L4
+.. section: Library
+
+Fix multiprocessing.Process when stdout and/or stderr is closed or None.
+
+..
+
+.. bpo: 31457
+.. date: 2017-10-18-19-05-17
+.. nonce: KlE6r8
+.. section: Library
+
+If nested log adapters are used, the inner ``process()`` methods are no
+longer omitted.
+
+..
+
+.. bpo: 31457
+.. date: 2017-10-18-16-48-09
+.. nonce: _ovmzp
+.. section: Library
+
+The ``manager`` property on LoggerAdapter objects is now properly settable.
+
+..
+
+.. bpo: 31806
+.. date: 2017-10-17-23-27-03
+.. nonce: TzphdL
+.. section: Library
+
+Fix timeout rounding in time.sleep(), threading.Lock.acquire() and
+socket.socket.settimeout() to round correctly negative timeouts between -1.0
+and 0.0. The functions now block waiting for events as expected. Previously,
+the call was incorrectly non-blocking. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 28603
+.. date: 2017-10-17-12-29-18
+.. nonce: tGuX2C
+.. section: Library
+
+traceback: Fix a TypeError that occurred during printing of exception
+tracebacks when either the current exception or an exception in its
+context/cause chain is unhashable. Patch by Zane Bitter.
+
+..
+
+.. bpo: 30058
+.. date: 2017-10-12-19-00-53
+.. nonce: cENtry
+.. section: Library
+
+Fixed buffer overflow in select.kqueue.control().
+
+..
+
+.. bpo: 31770
+.. date: 2017-10-12-18-45-38
+.. nonce: GV3MPx
+.. section: Library
+
+Prevent a crash when calling the ``__init__()`` method of a
+``sqlite3.Cursor`` object more than once. Patch by Oren Milman.
+
+..
+
+.. bpo: 31672
+.. date: 2017-10-12-02-47-16
+.. nonce: DaOkVd
+.. section: Library
+
+``idpattern`` in ``string.Template`` matched some non-ASCII characters. Now
+it uses ``-i`` regular expression local flag to avoid non-ASCII characters.
+
+..
+
+.. bpo: 31764
+.. date: 2017-10-11-22-18-04
+.. nonce: EMyIkK
+.. section: Library
+
+Prevent a crash in ``sqlite3.Cursor.close()`` in case the ``Cursor`` object
+is uninitialized. Patch by Oren Milman.
+
+..
+
+.. bpo: 31752
+.. date: 2017-10-11-00-45-01
+.. nonce: DhWevN
+.. section: Library
+
+Fix possible crash in timedelta constructor called with custom integers.
+
+..
+
+.. bpo: 31701
+.. date: 2017-10-09-17-42-30
+.. nonce: NRrVel
+.. section: Library
+
+On Windows, faulthandler.enable() now ignores MSC and COM exceptions.
+
+..
+
+.. bpo: 31728
+.. date: 2017-10-08-23-28-30
+.. nonce: XrVMME
+.. section: Library
+
+Prevent crashes in `_elementtree` due to unsafe cleanup of `Element.text`
+and `Element.tail`. Patch by Oren Milman.
+
+..
+
+.. bpo: 31620
+.. date: 2017-10-06-04-35-31
+.. nonce: gksLA1
+.. section: Library
+
+an empty asyncio.Queue now doesn't leak memory when queue.get pollers
+timeout
+
+..
+
+.. bpo: 31632
+.. date: 2017-10-04-11-37-14
+.. nonce: LiOC3C
+.. section: Library
+
+Fix method set_protocol() of class _SSLProtocolTransport in asyncio module.
+This method was previously modifying a wrong reference to the protocol.
+
+..
+
+.. bpo: 31675
+.. date: 2017-10-03-15-06-24
+.. nonce: Nh7jJ3
+.. section: Library
+
+Fixed memory leaks in Tkinter's methods splitlist() and split() when pass a
+string larger than 2 GiB.
+
+..
+
+.. bpo: 31673
+.. date: 2017-10-03-14-37-46
+.. nonce: RFCrka
+.. section: Library
+
+Fixed typo in the name of Tkinter's method adderrorinfo().
+
+..
+
+.. bpo: 30806
+.. date: 2017-09-29
+.. nonce: lP5GrH
+.. section: Library
+
+Fix the string representation of a netrc object.
+
+..
+
+.. bpo: 15037
+.. date: 2017-09-29-19-19-36
+.. nonce: ykimLK
+.. section: Library
+
+Added a workaround for getkey() in curses for ncurses 5.7 and earlier.
+
+..
+
+.. bpo: 25351
+.. date: 2017-09-28-23-10-51
+.. nonce: 2JmFpF
+.. section: Library
+
+Avoid venv activate failures with undefined variables
+
+..
+
+.. bpo: 25532
+.. date: 2017-09-27-08-11-38
+.. nonce: ey4Yez
+.. section: Library
+
+inspect.unwrap() will now only try to unwrap an object
+sys.getrecursionlimit() times, to protect against objects which create a new
+object on every attribute access.
+
+..
+
+.. bpo: 30347
+.. date: 2017-09-25-14-04-30
+.. nonce: B4--_D
+.. section: Library
+
+Stop crashes when concurrently iterate over itertools.groupby() iterators.
+
+..
+
+.. bpo: 31516
+.. date: 2017-09-20-18-43-01
+.. nonce: 23Yuq3
+.. section: Library
+
+``threading.current_thread()`` should not return a dummy thread at shutdown.
+
+..
+
+.. bpo: 31351
+.. date: 2017-09-17-15-24-25
+.. nonce: yQdKv-
+.. section: Library
+
+python -m ensurepip now exits with non-zero exit code if pip bootstrapping
+has failed.
+
+..
+
+.. bpo: 31482
+.. date: 2017-09-16-01-53-11
+.. nonce: 39s5dS
+.. section: Library
+
+``random.seed()`` now works with bytes in version=1
+
+..
+
+.. bpo: 31334
+.. date: 2017-09-04-00-22-31
+.. nonce: 9WYRfi
+.. section: Library
+
+Fix ``poll.poll([timeout])`` in the ``select`` module for arbitrary negative
+timeouts on all OSes where it can only be a non-negative integer or -1.
+Patch by Riccardo Coccioli.
+
+..
+
+.. bpo: 31310
+.. date: 2017-08-30-18-23-54
+.. nonce: 7D1UNt
+.. section: Library
+
+multiprocessing's semaphore tracker should be launched again if crashed.
+
+..
+
+.. bpo: 31308
+.. date: 2017-08-30-17-59-36
+.. nonce: KbexyC
+.. section: Library
+
+Make multiprocessing's forkserver process immune to Ctrl-C and other user
+interruptions. If it crashes, restart it when necessary.
+
+..
+
+.. bpo: 32105
+.. date: 2017-11-21-10-54-16
+.. nonce: 91mhWm
+.. section: Documentation
+
+Added asyncio.BaseEventLoop.connect_accepted_socket versionadded marker.
+
+..
+
+.. bpo: 31537
+.. date: 2017-10-08-23-02-14
+.. nonce: SiFNM8
+.. section: Documentation
+
+Fix incorrect usage of ``get_history_length`` in readline documentation
+example code. Patch by Brad Smith.
+
+..
+
+.. bpo: 30085
+.. date: 2017-09-14-18-44-50
+.. nonce: 0J9w-u
+.. section: Documentation
+
+The operator functions without double underscores are preferred for clarity.
+The one with underscores are only kept for back-compatibility.
+
+..
+
+.. bpo: 31380
+.. date: 2017-12-04-23-19-16
+.. nonce: VlMmHW
+.. section: Tests
+
+Skip test_httpservers test_undecodable_file on macOS: fails on APFS.
+
+..
+
+.. bpo: 31705
+.. date: 2017-11-30-12-27-10
+.. nonce: yULW7O
+.. section: Tests
+
+Skip test_socket.test_sha256() on Linux kernel older than 4.5. The test
+fails with ENOKEY on kernel 3.10 (on ppc64le). A fix was merged into the
+kernel 4.5.
+
+..
+
+.. bpo: 31174
+.. date: 2017-10-24-11-36-10
+.. nonce: xCvXcr
+.. section: Tests
+
+Fix test_tools.test_unparse: DirectoryTestCase now stores the names sample
+to always test the same files. It prevents false alarms when hunting
+reference leaks.
+
+..
+
+.. bpo: 30695
+.. date: 2017-06-30-11-20-20
+.. nonce: lo7FQX
+.. section: Tests
+
+Add the `set_nomemory(start, stop)` and `remove_mem_hooks()` functions to
+the _testcapi module.
+
+..
+
+.. bpo: 32059
+.. date: 2017-11-18-11-19-28
+.. nonce: a0Hxgp
+.. section: Build
+
+``detect_modules()`` in ``setup.py`` now also searches the sysroot paths
+when cross-compiling.
+
+..
+
+.. bpo: 31957
+.. date: 2017-11-06-11-53-39
+.. nonce: S_1jFK
+.. section: Build
+
+Fixes Windows SDK version detection when building for Windows.
+
+..
+
+.. bpo: 31609
+.. date: 2017-11-04-15-35-08
+.. nonce: k7_nBR
+.. section: Build
+
+Fixes quotes in PCbuild/clean.bat
+
+..
+
+.. bpo: 31934
+.. date: 2017-11-03-15-17-50
+.. nonce: 8bUlpv
+.. section: Build
+
+Abort the build when building out of a not clean source tree.
+
+..
+
+.. bpo: 31926
+.. date: 2017-11-03-10-07-14
+.. nonce: 57wE98
+.. section: Build
+
+Fixed Argument Clinic sometimes causing compilation errors when there was
+more than one function and/or method in a .c file with the same name.
+
+..
+
+.. bpo: 28791
+.. date: 2017-11-02-20-30-57
+.. nonce: VaE3o8
+.. section: Build
+
+Update Windows builds to use SQLite 3.21.0.
+
+..
+
+.. bpo: 28791
+.. date: 2017-11-02-20-13-46
+.. nonce: STt3jL
+.. section: Build
+
+Update OS X installer to use SQLite 3.21.0.
+
+..
+
+.. bpo: 22140
+.. date: 2017-09-26-22-39-58
+.. nonce: ZRf7Wn
+.. section: Build
+
+Prevent double substitution of prefix in python-config.sh.
+
+..
+
+.. bpo: 31536
+.. date: 2017-09-20-21-32-21
+.. nonce: KUDjno
+.. section: Build
+
+Avoid wholesale rebuild after `make regen-all` if nothing changed.
+
+..
+
+.. bpo: 1102
+.. date: 2017-11-19-09-46-27
+.. nonce: NY-g1F
+.. section: Windows
+
+Return ``None`` when ``View.Fetch()`` returns ``ERROR_NO_MORE_ITEMS``
+instead of raising ``MSIError``.
+Initial patch by Anthony Tuininga.
+
+..
+
+.. bpo: 31944
+.. date: 2017-11-04-15-29-47
+.. nonce: 0Bx8tZ
+.. section: Windows
+
+Fixes Modify button in Apps and Features dialog.
+
+..
+
+.. bpo: 31392
+.. date: 2017-12-04-21-57-43
+.. nonce: f8huBC
+.. section: macOS
+
+Update macOS installer to use OpenSSL 1.0.2m
+
+..
+
+.. bpo: 32207
+.. date: 2017-12-04-15-04-43
+.. nonce: IzyAJo
+.. section: IDLE
+
+Improve tk event exception tracebacks in IDLE. When tk event handling is
+driven by IDLE's run loop, a confusing and distracting queue.EMPTY traceback
+context is no longer added to tk event exception tracebacks. The traceback
+is now the same as when event handling is driven by user code. Patch based
+on a suggestion by Serhiy Storchaka.
+
+..
+
+.. bpo: 32164
+.. date: 2017-11-28-21-47-15
+.. nonce: 2T2Na8
+.. section: IDLE
+
+Delete unused file idlelib/tabbedpages.py. Use of TabbedPageSet in
+configdialog was replaced by ttk.Notebook.
+
+..
+
+.. bpo: 32100
+.. date: 2017-11-21-08-26-08
+.. nonce: P43qx2
+.. section: IDLE
+
+IDLE: Fix old and new bugs in pathbrowser; improve tests. Patch mostly by
+Cheryl Sabella.
+
+..
+
+.. bpo: 31858
+.. date: 2017-10-26-20-20-19
+.. nonce: VuSA_e
+.. section: IDLE
+
+IDLE -- Restrict shell prompt manipulation to the shell. Editor and output
+windows only see an empty last prompt line. This simplifies the code and
+fixes a minor bug when newline is inserted. Sys.ps1, if present, is read on
+Shell start-up, but is not set or changed.
+
+..
+
+.. bpo: 31860
+.. date: 2017-10-24-16-21-50
+.. nonce: gECuWx
+.. section: IDLE
+
+The font sample in the IDLE configuration dialog is now editable. Changes
+persist while IDLE remains open
+
+..
+
+.. bpo: 31836
+.. date: 2017-10-21-15-41-53
+.. nonce: fheLME
+.. section: IDLE
+
+Test_code_module now passes if run after test_idle, which sets ps1.
+The code module uses sys.ps1 if present or sets it to '>>> ' if not.
+Test_code_module now properly tests both behaviors. Ditto for ps2.
+
+..
+
+.. bpo: 28603
+.. date: 2017-10-17-13-26-13
+.. nonce: TMEQfp
+.. section: IDLE
+
+Fix a TypeError that caused a shell restart when printing a traceback that
+includes an exception that is unhashable. Patch by Zane Bitter.
+
+..
+
+.. bpo: 13802
+.. date: 2017-10-12-00-51-29
+.. nonce: VwjZRD
+.. section: IDLE
+
+Use non-Latin characters in the IDLE's Font settings sample. Even if one
+selects a font that defines a limited subset of the unicode Basic
+Multilingual Plane, tcl/tk will use other fonts that define a character. The
+expanded example give users of non-Latin characters a better idea of what
+they might see in IDLE's shell and editors. To make room for the expanded
+sample, frames on the Font tab are re-arranged. The Font/Tabs help explains
+a bit about the additions.
+
+..
+
+.. bpo: 31460
+.. date: 2017-09-30-19-03-26
+.. nonce: HpveI6
+.. section: IDLE
+
+Simplify the API of IDLE's Module Browser.
+Passing a widget instead of an flist with a root widget opens the option of
+creating a browser frame that is only part of a window. Passing a full file
+name instead of pieces assumed to come from a .py file opens the possibility
+of browsing python files that do not end in .py.
+
+..
+
+.. bpo: 31649
+.. date: 2017-09-30-13-59-18
+.. nonce: LxN4Vb
+.. section: IDLE
+
+IDLE - Make _htest, _utest parameters keyword only.
+
+..
+
+.. bpo: 31559
+.. date: 2017-09-23-12-52-24
+.. nonce: ydckYX
+.. section: IDLE
+
+Remove test order dependence in idle_test.test_browser.
+
+..
+
+.. bpo: 31459
+.. date: 2017-09-22-20-26-23
+.. nonce: L0pnH9
+.. section: IDLE
+
+Rename IDLE's module browser from Class Browser to Module Browser. The
+original module-level class and method browser became a module browser, with
+the addition of module-level functions, years ago. Nested classes and
+functions were added yesterday. For back-compatibility, the virtual event
+<<open-class-browser>>, which appears on the Keys tab of the Settings
+dialog, is not changed. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31500
+.. date: 2017-09-18-10-43-03
+.. nonce: Y_YDxA
+.. section: IDLE
+
+Default fonts now are scaled on HiDPI displays.
+
+..
+
+.. bpo: 1612262
+.. date: 2017-08-14-15-13-50
+.. nonce: -x_Oyq
+.. section: IDLE
+
+IDLE module browser now shows nested classes and functions. Original patches
+for code and tests by Guilherme Polo and Cheryl Sabella, respectively.
+
+..
+
+.. bpo: 30722
+.. date: 2017-10-23-19-45-52
+.. nonce: ioRlAu
+.. section: Tools/Demos
+
+Make redemo work with Python 3.6 and newer versions.
+Also, remove the ``LOCALE`` option since it doesn't work with string
+patterns in Python 3.
+Patch by Christoph Sarnowski.
+
+..
+
+.. bpo: 20891
+.. date: 2017-11-30-18-13-45
+.. nonce: wBnMdF
+.. section: C API
+
+Fix PyGILState_Ensure(). When PyGILState_Ensure() is called in a non-Python
+thread before PyEval_InitThreads(), only call PyEval_InitThreads() after
+calling PyThreadState_New() to fix a crash.
+
+..
+
+.. bpo: 31532
+.. date: 2017-09-20-21-59-52
+.. nonce: s9Cw9_
+.. section: C API
+
+Fix memory corruption due to allocator mix in getpath.c between Py_GetPath()
+and Py_SetPath()
+
+..
+
+.. bpo: 30697
+.. date: 2017-06-30-11-58-01
+.. nonce: Q3T_8n
+.. section: C API
+
+The `PyExc_RecursionErrorInst` singleton is removed and
+`PyErr_NormalizeException()` does not use it anymore. This singleton is
+persistent and its members being never cleared may cause a segfault during
+finalization of the interpreter. See also issue #22898.
--- /dev/null
+.. bpo: 32872
+.. date: 2018-03-28-01-35-02
+.. nonce: J5NDUj
+.. release date: 2018-03-28
+.. section: Tests
+
+Avoid regrtest compatibility issue with namespace packages.
+
+..
+
+.. bpo: 33163
+.. date: 2018-03-28-04-15-03
+.. nonce: hfpWuU
+.. section: Build
+
+Upgrade pip to 9.0.3 and setuptools to v39.0.1.
--- /dev/null
+.. bpo: 33001
+.. date: 2018-03-05-10-09-51
+.. nonce: elj4Aa
+.. release date: 2018-03-13
+.. section: Security
+
+Minimal fix to prevent buffer overrun in os.symlink on Windows
+
+..
+
+.. bpo: 32981
+.. date: 2018-03-02-10-24-52
+.. nonce: O_qDyj
+.. section: Security
+
+Regexes in difflib and poplib were vulnerable to catastrophic backtracking.
+These regexes formed potential DOS vectors (REDOS). They have been
+refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch by Jamie
+Davis.
+
+..
+
+.. bpo: 33026
+.. date: 2018-03-08-09-48-38
+.. nonce: QZA3Ba
+.. section: Core and Builtins
+
+Fixed jumping out of "with" block by setting f_lineno.
+
+..
+
+.. bpo: 17288
+.. date: 2018-02-27-13-36-21
+.. nonce: Gdj24S
+.. section: Core and Builtins
+
+Prevent jumps from 'return' and 'exception' trace events.
+
+..
+
+.. bpo: 32889
+.. date: 2018-02-20-21-53-48
+.. nonce: J6eWy5
+.. section: Core and Builtins
+
+Update Valgrind suppression list to account for the rename of
+``Py_ADDRESS_IN_RANG`` to ``address_in_range``.
+
+..
+
+.. bpo: 32650
+.. date: 2018-01-28-23-01-39
+.. nonce: Bbi7ek
+.. section: Core and Builtins
+
+Pdb and other debuggers dependent on bdb.py will correctly step over (next
+command) native coroutines. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 32685
+.. date: 2018-01-28-12-25-06
+.. nonce: nGctze
+.. section: Core and Builtins
+
+Improve suggestion when the Python 2 form of print statement is either
+present on the same line as the header of a compound statement or else
+terminated by a semi-colon instead of a newline. Patch by Nitish Chandra.
+
+..
+
+.. bpo: 32583
+.. date: 2018-01-26-21-20-21
+.. nonce: Fh3fau
+.. section: Core and Builtins
+
+Fix possible crashing in builtin Unicode decoders caused by write
+out-of-bound errors when using customized decode error handlers.
+
+..
+
+.. bpo: 26163
+.. date: 2018-01-14-20-32-47
+.. nonce: xv9Iuv
+.. section: Core and Builtins
+
+Improved frozenset() hash to create more distinct hash values when faced
+with datasets containing many similar values.
+
+..
+
+.. bpo: 27169
+.. date: 2017-12-15-11-50-06
+.. nonce: VO84fQ
+.. section: Core and Builtins
+
+The ``__debug__`` constant is now optimized out at compile time. This fixes
+also bpo-22091.
+
+..
+
+.. bpo: 32329
+.. date: 2017-12-15-00-55-35
+.. nonce: XL1O99
+.. section: Core and Builtins
+
+``sys.flags.hash_randomization`` is now properly set to 0 when hash
+randomization is turned off by ``PYTHONHASHSEED=0``.
+
+..
+
+.. bpo: 30416
+.. date: 2017-12-14-11-48-19
+.. nonce: hlHo_9
+.. section: Core and Builtins
+
+The optimizer is now protected from spending much time doing complex
+calculations and consuming much memory for creating large constants in
+constant folding.
+
+..
+
+.. bpo: 18533
+.. date: 2017-12-13-16-46-23
+.. nonce: Dlk8d7
+.. section: Core and Builtins
+
+``repr()`` on a dict containing its own ``values()`` or ``items()`` no
+longer raises ``RecursionError``; OrderedDict similarly. Instead, use
+``...``, as for other recursive structures. Patch by Ben North.
+
+..
+
+.. bpo: 32028
+.. date: 2017-12-03-22-29-13
+.. nonce: KC2w4Q
+.. section: Core and Builtins
+
+Leading whitespace is now correctly ignored when generating suggestions for
+converting Py2 print statements to Py3 builtin print function calls. Patch
+by Sanyam Khurana.
+
+..
+
+.. bpo: 32137
+.. date: 2017-11-26-14-36-30
+.. nonce: Stj5nL
+.. section: Core and Builtins
+
+The repr of deeply nested dict now raises a RecursionError instead of
+crashing due to a stack overflow.
+
+..
+
+.. bpo: 33064
+.. date: 2018-03-12-19-58-25
+.. nonce: LO2KIY
+.. section: Library
+
+lib2to3 now properly supports trailing commas after ``*args`` and
+``**kwargs`` in function signatures.
+
+..
+
+.. bpo: 31804
+.. date: 2018-03-11-19-03-52
+.. nonce: i8KUMp
+.. section: Library
+
+Avoid failing in multiprocessing.Process if the standard streams are closed
+or None at exit.
+
+..
+
+.. bpo: 33037
+.. date: 2018-03-09-23-07-07
+.. nonce: nAJ3at
+.. section: Library
+
+Skip sending/receiving data after SSL transport closing.
+
+..
+
+.. bpo: 30353
+.. date: 2018-03-08-09-54-01
+.. nonce: XdE5aM
+.. section: Library
+
+Fix ctypes pass-by-value for structs on 64-bit Cygwin/MinGW.
+
+..
+
+.. bpo: 33009
+.. date: 2018-03-06-11-54-59
+.. nonce: -Ekysb
+.. section: Library
+
+Fix inspect.signature() for single-parameter partialmethods.
+
+..
+
+.. bpo: 32969
+.. date: 2018-03-06-00-19-41
+.. nonce: rGTKa0
+.. section: Library
+
+Expose several missing constants in zlib and fix corresponding
+documentation.
+
+..
+
+.. bpo: 32713
+.. date: 2018-02-26-13-16-36
+.. nonce: 55yegW
+.. section: Library
+
+Fixed tarfile.itn handling of out-of-bounds float values. Patch by Joffrey
+Fuhrer.
+
+..
+
+.. bpo: 30622
+.. date: 2018-02-24-21-40-42
+.. nonce: dQjxSe
+.. section: Library
+
+The ssl module now detects missing NPN support in LibreSSL.
+
+..
+
+.. bpo: 32922
+.. date: 2018-02-23-19-12-04
+.. nonce: u-xe0B
+.. section: Library
+
+dbm.open() now encodes filename with the filesystem encoding rather than
+default encoding.
+
+..
+
+.. bpo: 32859
+.. date: 2018-02-19-17-46-31
+.. nonce: kAT-Xp
+.. section: Library
+
+In ``os.dup2``, don't check every call whether the ``dup3`` syscall exists
+or not.
+
+..
+
+.. bpo: 21060
+.. date: 2018-02-17-19-20-19
+.. nonce: S1Z-x6
+.. section: Library
+
+Rewrite confusing message from setup.py upload from "No dist file created in
+earlier command" to the more helpful "Must create and upload files in one
+command".
+
+..
+
+.. bpo: 32857
+.. date: 2018-02-16-14-37-14
+.. nonce: -XljAx
+.. section: Library
+
+In :mod:`tkinter`, ``after_cancel(None)`` now raises a :exc:`ValueError`
+instead of canceling the first scheduled function. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 32852
+.. date: 2018-02-15-12-04-29
+.. nonce: HDqIxM
+.. section: Library
+
+Make sure sys.argv remains as a list when running trace.
+
+..
+
+.. bpo: 32841
+.. date: 2018-02-14-00-21-24
+.. nonce: bvHDOc
+.. section: Library
+
+Fixed `asyncio.Condition` issue which silently ignored cancellation after
+notifying and cancelling a conditional lock. Patch by Bar Harel.
+
+..
+
+.. bpo: 31787
+.. date: 2018-02-09-21-41-56
+.. nonce: owSZ2t
+.. section: Library
+
+Fixed refleaks of ``__init__()`` methods in various modules. (Contributed by
+Oren Milman)
+
+..
+
+.. bpo: 30157
+.. date: 2018-02-09-14-44-43
+.. nonce: lEiiAK
+.. section: Library
+
+Fixed guessing quote and delimiter in csv.Sniffer.sniff() when only the last
+field is quoted. Patch by Jake Davis.
+
+..
+
+.. bpo: 32394
+.. date: 2018-02-08-08-18-26
+.. nonce: 6E_7X7
+.. section: Library
+
+socket: Remove TCP_FASTOPEN, TCP_KEEPCNT flags on older version Windows
+during run-time.
+
+..
+
+.. bpo: 32777
+.. date: 2018-02-05-21-28-28
+.. nonce: C-wIXF
+.. section: Library
+
+Fix a rare but potential pre-exec child process deadlock in subprocess on
+POSIX systems when marking file descriptors inheritable on exec in the child
+process. This bug appears to have been introduced in 3.4.
+
+..
+
+.. bpo: 32647
+.. date: 2018-02-05-13-31-42
+.. nonce: ktmfR_
+.. section: Library
+
+The ctypes module used to depend on indirect linking for dlopen. The shared
+extension is now explicitly linked against libdl on platforms with dl.
+
+..
+
+.. bpo: 32734
+.. date: 2018-02-01-01-34-47
+.. nonce: gCV9AD
+.. section: Library
+
+Fixed ``asyncio.Lock()`` safety issue which allowed acquiring and locking
+the same lock multiple times, without it being free. Patch by Bar Harel.
+
+..
+
+.. bpo: 32727
+.. date: 2018-01-30-17-46-18
+.. nonce: aHVsRC
+.. section: Library
+
+Do not include name field in SMTP envelope from address. Patch by Stéphane
+Wirtel
+
+..
+
+.. bpo: 27931
+.. date: 2018-01-25-21-04-11
+.. nonce: e4r52t
+.. section: Library
+
+Fix email address header parsing error when the username is an empty quoted
+string. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 32304
+.. date: 2018-01-21-16-33-53
+.. nonce: TItrNv
+.. section: Library
+
+distutils' upload command no longer corrupts tar files ending with a CR
+byte, and no longer tries to convert CR to CRLF in any of the upload text
+fields.
+
+..
+
+.. bpo: 32502
+.. date: 2018-01-20-17-15-34
+.. nonce: OXJfn7
+.. section: Library
+
+uuid.uuid1 no longer raises an exception if a 64-bit hardware address is
+encountered.
+
+..
+
+.. bpo: 31848
+.. date: 2018-01-18-23-34-17
+.. nonce: M2cldy
+.. section: Library
+
+Fix the error handling in Aifc_read.initfp() when the SSND chunk is not
+found. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 32555
+.. date: 2018-01-15-17-52-47
+.. nonce: CMq2zF
+.. section: Library
+
+On FreeBSD and Solaris, os.strerror() now always decode the byte string from
+the current locale encoding, rather than using ASCII/surrogateescape in some
+cases.
+
+..
+
+.. bpo: 32521
+.. date: 2018-01-15-12-53-13
+.. nonce: IxX4Ba
+.. section: Library
+
+The nis module is now compatible with new libnsl and headers location.
+
+..
+
+.. bpo: 32473
+.. date: 2018-01-10-20-37-59
+.. nonce: mP_yJG
+.. section: Library
+
+Improve ABCMeta._dump_registry() output readability
+
+..
+
+.. bpo: 32521
+.. date: 2018-01-08-18-02-33
+.. nonce: Kh-KoN
+.. section: Library
+
+glibc has removed Sun RPC. Use replacement libtirpc headers and library in
+nis module.
+
+..
+
+.. bpo: 32228
+.. date: 2017-12-22-16-47-41
+.. nonce: waPx3q
+.. section: Library
+
+Ensure that ``truncate()`` preserves the file position (as reported by
+``tell()``) after writes longer than the buffer size.
+
+..
+
+.. bpo: 26133
+.. date: 2017-12-21-11-08-42
+.. nonce: mt81QV
+.. section: Library
+
+Don't unsubscribe signals in asyncio UNIX event loop on interpreter
+shutdown.
+
+..
+
+.. bpo: 32185
+.. date: 2017-12-20-09-25-10
+.. nonce: IL0cMt
+.. section: Library
+
+The SSL module no longer sends IP addresses in SNI TLS extension on
+platforms with OpenSSL 1.0.2+ or inet_pton.
+
+..
+
+.. bpo: 32323
+.. date: 2017-12-14-10-10-10
+.. nonce: ideco
+.. section: Library
+
+:func:`urllib.parse.urlsplit()` does not convert zone-id (scope) to lower
+case for scoped IPv6 addresses in hostnames now.
+
+..
+
+.. bpo: 32302
+.. date: 2017-12-13-22-38-08
+.. nonce: othtTr
+.. section: Library
+
+Fix bdist_wininst of distutils for CRT v142: it binary compatible with CRT
+v140.
+
+..
+
+.. bpo: 32255
+.. date: 2017-12-12-07-29-06
+.. nonce: 2bfNmM
+.. section: Library
+
+A single empty field is now always quoted when written into a CSV file. This
+allows to distinguish an empty row from a row consisting of a single empty
+field. Patch by Licht Takeuchi.
+
+..
+
+.. bpo: 32277
+.. date: 2017-12-11-09-53-14
+.. nonce: jkKiVC
+.. section: Library
+
+Raise ``NotImplementedError`` instead of ``SystemError`` on platforms where
+``chmod(..., follow_symlinks=False)`` is not supported. Patch by Anthony
+Sottile.
+
+..
+
+.. bpo: 32199
+.. date: 2017-12-04-12-23-26
+.. nonce: nGof4v
+.. section: Library
+
+The getnode() ip getter now uses 'ip link' instead of 'ip link list'.
+
+..
+
+.. bpo: 27456
+.. date: 2017-11-02-11-57-41
+.. nonce: snzyTC
+.. section: Library
+
+Ensure TCP_NODELAY is set on Linux. Tests by Victor Stinner.
+
+..
+
+.. bpo: 31900
+.. date: 2017-10-30-15-55-32
+.. nonce: -S9xc4
+.. section: Library
+
+The :func:`locale.localeconv` function now sets temporarily the ``LC_CTYPE``
+locale to the ``LC_NUMERIC`` locale to decode ``decimal_point`` and
+``thousands_sep`` byte strings if they are non-ASCII or longer than 1 byte,
+and the ``LC_NUMERIC`` locale is different than the ``LC_CTYPE`` locale.
+This temporary change affects other threads.
+Same change for the :meth:`str.format` method when formatting a number
+(:class:`int`, :class:`float`, :class:`float` and subclasses) with the ``n``
+type (ex: ``'{:n}'.format(1234)``).
+
+..
+
+.. bpo: 31802
+.. date: 2017-10-17-14-52-14
+.. nonce: sYj2Zv
+.. section: Library
+
+Importing native path module (``posixpath``, ``ntpath``) now works even if
+the ``os`` module still is not imported.
+
+..
+
+.. bpo: 17232
+.. date: 2018-02-23-12-48-03
+.. nonce: tmuTKL
+.. section: Documentation
+
+Clarify docs for -O and -OO. Patch by Terry Reedy.
+
+..
+
+.. bpo: 32800
+.. date: 2018-02-10-15-16-04
+.. nonce: FyrqCk
+.. section: Documentation
+
+Update link to w3c doc for xml default namespaces.
+
+..
+
+.. bpo: 8722
+.. date: 2018-02-03-06-11-37
+.. nonce: MPyVyj
+.. section: Documentation
+
+Document :meth:`__getattr__` behavior when property :meth:`get` method
+raises :exc:`AttributeError`.
+
+..
+
+.. bpo: 32614
+.. date: 2018-02-02-07-41-57
+.. nonce: LSqzGw
+.. section: Documentation
+
+Modify RE examples in documentation to use raw strings to prevent
+:exc:`DeprecationWarning` and add text to REGEX HOWTO to highlight the
+deprecation.
+
+..
+
+.. bpo: 31972
+.. date: 2018-01-25-14-23-12
+.. nonce: w1m_8r
+.. section: Documentation
+
+Improve docstrings for `pathlib.PurePath` subclasses.
+
+..
+
+.. bpo: 17799
+.. date: 2018-01-22-21-13-46
+.. nonce: rdZ-Vk
+.. section: Documentation
+
+Explain real behaviour of sys.settrace and sys.setprofile and their C-API
+counterparts regarding which type of events are received in each function.
+Patch by Pablo Galindo Salgado.
+
+..
+
+.. bpo: 32517
+.. date: 2018-03-09-07-05-12
+.. nonce: ugc1iW
+.. section: Tests
+
+Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport of
+``KqueueSelector`` loop was not being closed.
+
+..
+
+.. bpo: 32721
+.. date: 2018-01-29-21-30-44
+.. nonce: 2Bebm1
+.. section: Tests
+
+Fix test_hashlib to not fail if the _md5 module is not built.
+
+..
+
+.. bpo: 32252
+.. date: 2017-12-11-13-31-33
+.. nonce: YnFw7J
+.. section: Tests
+
+Fix faulthandler_suppress_crash_report() used to prevent core dump files
+when testing crashes. getrlimit() returns zero on success.
+
+..
+
+.. bpo: 31518
+.. date: 2017-09-19-20-48-50
+.. nonce: KwTMMz
+.. section: Tests
+
+Debian Unstable has disabled TLS 1.0 and 1.1 for SSLv23_METHOD(). Change
+TLS/SSL protocol of some tests to PROTOCOL_TLS or PROTOCOL_TLSv1_2 to make
+them pass on Debian.
+
+..
+
+.. bpo: 32635
+.. date: 2018-01-23-15-33-40
+.. nonce: qHwIZy
+.. section: Build
+
+Fix segfault of the crypt module when libxcrypt is provided instead of
+libcrypt at the system.
+
+..
+
+.. bpo: 33016
+.. date: 2018-03-07-01-33-33
+.. nonce: Z_Med0
+.. section: Windows
+
+Fix potential use of uninitialized memory in nt._getfinalpathname
+
+..
+
+.. bpo: 32903
+.. date: 2018-02-28-11-03-24
+.. nonce: 1SXY4t
+.. section: Windows
+
+Fix a memory leak in os.chdir() on Windows if the current directory is set
+to a UNC path.
+
+..
+
+.. bpo: 31966
+.. date: 2018-02-19-13-54-42
+.. nonce: _Q3HPb
+.. section: Windows
+
+Fixed WindowsConsoleIO.write() for writing empty data.
+
+..
+
+.. bpo: 32409
+.. date: 2018-02-19-10-00-57
+.. nonce: nocuDg
+.. section: Windows
+
+Ensures activate.bat can handle Unicode contents.
+
+..
+
+.. bpo: 32457
+.. date: 2018-02-19-08-54-06
+.. nonce: vVP0Iz
+.. section: Windows
+
+Improves handling of denormalized executable path when launching Python.
+
+..
+
+.. bpo: 32370
+.. date: 2018-02-10-15-38-19
+.. nonce: kcKuct
+.. section: Windows
+
+Use the correct encoding for ipconfig output in the uuid module. Patch by
+Segev Finer.
+
+..
+
+.. bpo: 29248
+.. date: 2018-02-07-17-50-48
+.. nonce: Xzwj-6
+.. section: Windows
+
+Fix :func:`os.readlink` on Windows, which was mistakenly treating the
+``PrintNameOffset`` field of the reparse data buffer as a number of
+characters instead of bytes. Patch by Craig Holmquist and SSE4.
+
+..
+
+.. bpo: 32588
+.. date: 2018-01-18-14-56-45
+.. nonce: vHww6F
+.. section: Windows
+
+Create standalone _distutils_findvs module.
+
+..
+
+.. bpo: 32726
+.. date: 2018-03-13-21-00-20
+.. nonce: Mticyn
+.. section: macOS
+
+Provide an additional, more modern macOS installer variant that supports
+macOS 10.9+ systems in 64-bit mode only. Upgrade the supplied third-party
+libraries to OpenSSL 1.0.2n, XZ 5.2.3, and SQLite 3.22.0. The 10.9+
+installer now links with and supplies its own copy of Tcl/Tk 8.6.8.
+
+..
+
+.. bpo: 32984
+.. date: 2018-03-05-01-29-05
+.. nonce: NGjgT4
+.. section: IDLE
+
+Set ``__file__`` while running a startup file. Like Python, IDLE optionally
+runs one startup file in the Shell window before presenting the first
+interactive input prompt. For IDLE, ``-s`` runs a file named in
+environmental variable :envvar:`IDLESTARTUP` or :envvar:`PYTHONSTARTUP`;
+``-r file`` runs ``file``. Python sets ``__file__`` to the startup file
+name before running the file and unsets it before the first prompt. IDLE
+now does the same when run normally, without the ``-n`` option.
+
+..
+
+.. bpo: 32940
+.. date: 2018-02-24-18-20-50
+.. nonce: ZaJ1Rf
+.. section: IDLE
+
+Simplify and rename StringTranslatePseudoMapping in pyparse.
+
+..
+
+.. bpo: 32916
+.. date: 2018-02-23-07-32-36
+.. nonce: 4MsQ5F
+.. section: IDLE
+
+Change ``str`` to ``code`` in pyparse.
+
+..
+
+.. bpo: 32905
+.. date: 2018-02-22-00-09-27
+.. nonce: VlXj0x
+.. section: IDLE
+
+Remove unused code in pyparse module.
+
+..
+
+.. bpo: 32874
+.. date: 2018-02-19-10-56-41
+.. nonce: 6pZ9Gv
+.. section: IDLE
+
+Add tests for pyparse.
+
+..
+
+.. bpo: 32837
+.. date: 2018-02-12-17-22-48
+.. nonce: -33QPl
+.. section: IDLE
+
+Using the system and place-dependent default encoding for open() is a bad
+idea for IDLE's system and location-independent files.
+
+..
+
+.. bpo: 32826
+.. date: 2018-02-12-11-05-22
+.. nonce: IxNZrk
+.. section: IDLE
+
+Add "encoding=utf-8" to open() in IDLE's test_help_about. GUI test
+test_file_buttons() only looks at initial ascii-only lines, but failed on
+systems where open() defaults to 'ascii' because readline() internally reads
+and decodes far enough ahead to encounter a non-ascii character in
+CREDITS.txt.
+
+..
+
+.. bpo: 32765
+.. date: 2018-02-04-17-52-54
+.. nonce: qm0eCu
+.. section: IDLE
+
+Update configdialog General tab docstring to add new widgets to the widget
+list.
+
+..
+
+.. bpo: 24960
+.. date: 2017-12-22-09-25-51
+.. nonce: TGdAgO
+.. section: Tools/Demos
+
+2to3 and lib2to3 can now read pickled grammar files using pkgutil.get_data()
+rather than probing the filesystem. This lets 2to3 and lib2to3 work when run
+from a zipfile.
+
+..
+
+.. bpo: 32222
+.. date: 2017-12-07-20-51-20
+.. nonce: hPBcGT
+.. section: Tools/Demos
+
+Fix pygettext not extracting docstrings for functions with type annotated
+arguments. Patch by Toby Harradine.
+
+..
+
+.. bpo: 29084
+.. date: 2017-12-16-09-59-35
+.. nonce: ZGJ-LJ
+.. section: C API
+
+Undocumented C API for OrderedDict has been excluded from the limited C API.
+It was added by mistake and actually never worked in the limited C API.
--- /dev/null
+.. bpo: 0
+.. date: 2018-06-27
+.. no changes: True
+.. nonce: IWyX1H
+.. release date: 2018-06-27
+.. section: Library
+
+There were no new changes in version 3.6.6.
--- /dev/null
+.. bpo: 33786
+.. date: 2018-06-06-23-24-40
+.. nonce: lBvT8z
+.. release date: 2018-06-11
+.. section: Core and Builtins
+
+Fix asynchronous generators to handle GeneratorExit in athrow() correctly
+
+..
+
+.. bpo: 30654
+.. date: 2018-05-28-12-28-53
+.. nonce: 9fDJye
+.. section: Core and Builtins
+
+Fixed reset of the SIGINT handler to SIG_DFL on interpreter shutdown even
+when there was a custom handler set previously. Patch by Philipp Kerling.
+
+..
+
+.. bpo: 33622
+.. date: 2018-05-23-20-46-14
+.. nonce: xPucO9
+.. section: Core and Builtins
+
+Fixed a leak when the garbage collector fails to add an object with the
+``__del__`` method or referenced by it into the :data:`gc.garbage` list.
+:c:func:`PyGC_Collect` can now be called when an exception is set and
+preserves it.
+
+..
+
+.. bpo: 31849
+.. date: 2018-05-14-11-00-00
+.. nonce: EmHaH4
+.. section: Core and Builtins
+
+Fix signed/unsigned comparison warning in pyhash.c.
+
+..
+
+.. bpo: 33391
+.. date: 2018-05-02-08-36-03
+.. nonce: z4a7rb
+.. section: Core and Builtins
+
+Fix a leak in set_symmetric_difference().
+
+..
+
+.. bpo: 28055
+.. date: 2018-04-25-20-44-42
+.. nonce: f49kfC
+.. section: Core and Builtins
+
+Fix unaligned accesses in siphash24(). Patch by Rolf Eike Beer.
+
+..
+
+.. bpo: 33231
+.. date: 2018-04-05-22-20-44
+.. nonce: 3Jmo0q
+.. section: Core and Builtins
+
+Fix potential memory leak in ``normalizestring()``.
+
+..
+
+.. bpo: 29922
+.. date: 2018-04-03-00-30-25
+.. nonce: CdLuMl
+.. section: Core and Builtins
+
+Improved error messages in 'async with' when ``__aenter__()`` or
+``__aexit__()`` return non-awaitable object.
+
+..
+
+.. bpo: 33199
+.. date: 2018-04-02-09-32-40
+.. nonce: TPnxQu
+.. section: Core and Builtins
+
+Fix ``ma_version_tag`` in dict implementation is uninitialized when copying
+from key-sharing dict.
+
+..
+
+.. bpo: 33041
+.. date: 2018-03-18-13-56-14
+.. nonce: XwPhI2
+.. section: Core and Builtins
+
+Fixed jumping when the function contains an ``async for`` loop.
+
+..
+
+.. bpo: 32282
+.. date: 2017-12-12-14-02-28
+.. nonce: xFVMTn
+.. section: Core and Builtins
+
+Fix an unnecessary ifdef in the include of VersionHelpers.h in socketmodule
+on Windows.
+
+..
+
+.. bpo: 21983
+.. date: 2017-10-02-21-02-14
+.. nonce: UoC319
+.. section: Core and Builtins
+
+Fix a crash in `ctypes.cast()` in case the type argument is a ctypes
+structured data type. Patch by Eryk Sun and Oren Milman.
+
+..
+
+.. bpo: 30167
+.. date: 2018-06-10-19-29-17
+.. nonce: G5EgC5
+.. section: Library
+
+Prevent site.main() exception if PYTHONSTARTUP is set. Patch by Steve Weber.
+
+..
+
+.. bpo: 33812
+.. date: 2018-06-10-13-26-02
+.. nonce: frGAOr
+.. section: Library
+
+Datetime instance d with non-None tzinfo, but with d.tzinfo.utcoffset(d)
+returning None is now treated as naive by the astimezone() method.
+
+..
+
+.. bpo: 30805
+.. date: 2018-06-08-17-34-16
+.. nonce: 3qCWa0
+.. section: Library
+
+Avoid race condition with debug logging
+
+..
+
+.. bpo: 33767
+.. date: 2018-06-03-22-41-59
+.. nonce: 2e82g3
+.. section: Library
+
+The concatenation (``+``) and repetition (``*``) sequence operations now
+raise :exc:`TypeError` instead of :exc:`SystemError` when performed on
+:class:`mmap.mmap` objects. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 32684
+.. date: 2018-05-29-12-51-18
+.. nonce: ZEIism
+.. section: Library
+
+Fix gather to propagate cancellation of itself even with return_exceptions.
+
+..
+
+.. bpo: 33674
+.. date: 2018-05-28-22-49-59
+.. nonce: 6LFFj7
+.. section: Library
+
+Fix a race condition in SSLProtocol.connection_made() of asyncio.sslproto:
+start immediately the handshake instead of using call_soon(). Previously,
+data_received() could be called before the handshake started, causing the
+handshake to hang or fail.
+
+..
+
+.. bpo: 31647
+.. date: 2018-05-28-18-40-26
+.. nonce: s4Fad3
+.. section: Library
+
+Fixed bug where calling write_eof() on a _SelectorSocketTransport after it's
+already closed raises AttributeError.
+
+..
+
+.. bpo: 33672
+.. date: 2018-05-28-17-45-06
+.. nonce: GM_Xm_
+.. section: Library
+
+Fix Task.__repr__ crash with Cython's bogus coroutines
+
+..
+
+.. bpo: 33469
+.. date: 2018-05-28-15-55-12
+.. nonce: hmXBpY
+.. section: Library
+
+Fix RuntimeError after closing loop that used run_in_executor
+
+..
+
+.. bpo: 11874
+.. date: 2018-05-23-00-26-27
+.. nonce: glK5iP
+.. section: Library
+
+Use a better regex when breaking usage into wrappable parts. Avoids bogus
+assertion errors from custom metavar strings.
+
+..
+
+.. bpo: 30877
+.. date: 2018-05-22-13-05-12
+.. nonce: JZEGjI
+.. section: Library
+
+Fixed a bug in the Python implementation of the JSON decoder that prevented
+the cache of parsed strings from clearing after finishing the decoding.
+Based on patch by c-fos.
+
+..
+
+.. bpo: 33548
+.. date: 2018-05-16-17-05-48
+.. nonce: xWslmx
+.. section: Library
+
+tempfile._candidate_tempdir_list should consider common TEMP locations
+
+..
+
+.. bpo: 33542
+.. date: 2018-05-16-09-30-27
+.. nonce: idNAcs
+.. section: Library
+
+Prevent ``uuid.get_node`` from using a DUID instead of a MAC on Windows.
+Patch by Zvi Effron
+
+..
+
+.. bpo: 26819
+.. date: 2018-05-16-05-24-43
+.. nonce: taxbVT
+.. section: Library
+
+Fix race condition with `ReadTransport.resume_reading` in Windows proactor
+event loop.
+
+..
+
+.. bpo: 28556
+.. date: 2018-05-10-14-51-19
+.. nonce: y3zK6I
+.. section: Library
+
+Minor fixes in typing module: add annotations to ``NamedTuple.__new__``,
+pass ``*args`` and ``**kwds`` in ``Generic.__new__``. Original PRs by
+Paulius Šarka and Chad Dombrova.
+
+..
+
+.. bpo: 20087
+.. date: 2018-05-05-18-02-24
+.. nonce: lJrvXL
+.. section: Library
+
+Updated alias mapping with glibc 2.27 supported locales.
+
+..
+
+.. bpo: 33422
+.. date: 2018-05-05-09-53-05
+.. nonce: 4FtQ0q
+.. section: Library
+
+Fix trailing quotation marks getting deleted when looking up byte/string
+literals on pydoc. Patch by Andrés Delfino.
+
+..
+
+.. bpo: 33197
+.. date: 2018-04-29-23-56-20
+.. nonce: dgRLqr
+.. section: Library
+
+Update error message when constructing invalid inspect.Parameters Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 33383
+.. date: 2018-04-29-11-15-38
+.. nonce: g32YWn
+.. section: Library
+
+Fixed crash in the get() method of the :mod:`dbm.ndbm` database object when
+it is called with a single argument.
+
+..
+
+.. bpo: 33329
+.. date: 2018-04-23-13-21-39
+.. nonce: lQ-Eod
+.. section: Library
+
+Fix multiprocessing regression on newer glibcs
+
+..
+
+.. bpo: 991266
+.. date: 2018-04-21-00-24-08
+.. nonce: h93TP_
+.. section: Library
+
+Fix quoting of the ``Comment`` attribute of
+:class:`http.cookies.SimpleCookie`.
+
+..
+
+.. bpo: 33131
+.. date: 2018-04-20-10-43-17
+.. nonce: L2E977
+.. section: Library
+
+Upgrade bundled version of pip to 10.0.1.
+
+..
+
+.. bpo: 33308
+.. date: 2018-04-18-19-12-25
+.. nonce: fW75xi
+.. section: Library
+
+Fixed a crash in the :mod:`parser` module when converting an ST object to a
+tree of tuples or lists with ``line_info=False`` and ``col_info=True``.
+
+..
+
+.. bpo: 33263
+.. date: 2018-04-11-20-29-19
+.. nonce: B56Hc1
+.. section: Library
+
+Fix FD leak in `_SelectorSocketTransport` Patch by Vlad Starostin.
+
+..
+
+.. bpo: 33256
+.. date: 2018-04-10-20-57-14
+.. nonce: ndHkqu
+.. section: Library
+
+Fix display of ``<module>`` call in the html produced by ``cgitb.html()``.
+Patch by Stéphane Blondon.
+
+..
+
+.. bpo: 33203
+.. date: 2018-04-05-11-09-45
+.. nonce: Hje9Py
+.. section: Library
+
+``random.Random.choice()`` now raises ``IndexError`` for empty sequences
+consistently even when called from subclasses without a ``getrandbits()``
+implementation.
+
+..
+
+.. bpo: 33224
+.. date: 2018-04-04-23-41-30
+.. nonce: pyR0jB
+.. section: Library
+
+Update difflib.mdiff() for :pep:`479`. Convert an uncaught StopIteration in a
+generator into a return-statement.
+
+..
+
+.. bpo: 33209
+.. date: 2018-04-03-10-37-13
+.. nonce: 9sGWE_
+.. section: Library
+
+End framing at the end of C implementation of :func:`pickle.Pickler.dump`.
+
+..
+
+.. bpo: 32861
+.. date: 2018-04-02-20-44-54
+.. nonce: HeBjzN
+.. section: Library
+
+The urllib.robotparser's ``__str__`` representation now includes wildcard
+entries and the "Crawl-delay" and "Request-rate" fields. Patch by Michael
+Lazar.
+
+..
+
+.. bpo: 33096
+.. date: 2018-03-25-13-18-16
+.. nonce: ofdbe7
+.. section: Library
+
+Allow ttk.Treeview.insert to insert iid that has a false boolean value. Note
+iid=0 and iid=False would be same. Patch by Garvit Khatri.
+
+..
+
+.. bpo: 33127
+.. date: 2018-03-24-15-08-24
+.. nonce: olJmHv
+.. section: Library
+
+The ssl module now compiles with LibreSSL 2.7.1.
+
+..
+
+.. bpo: 33021
+.. date: 2018-03-12-00-27-56
+.. nonce: m19B9T
+.. section: Library
+
+Release the GIL during fstat() calls, avoiding hang of all threads when
+calling mmap.mmap(), os.urandom(), and random.seed(). Patch by Nir Soffer.
+
+..
+
+.. bpo: 27683
+.. date: 2018-03-07-22-28-17
+.. nonce: 572Rv4
+.. section: Library
+
+Fix a regression in :mod:`ipaddress` that result of :meth:`hosts` is empty
+when the network is constructed by a tuple containing an integer mask and
+only 1 bit left for addresses.
+
+..
+
+.. bpo: 32844
+.. date: 2018-02-28-13-08-00
+.. nonce: u8tnAe
+.. section: Library
+
+Fix wrong redirection of a low descriptor (0 or 1) to stderr in subprocess
+if another low descriptor is closed.
+
+..
+
+.. bpo: 31908
+.. date: 2017-10-31
+.. nonce: g4xh8x
+.. section: Library
+
+Fix output of cover files for ``trace`` module command-line tool. Previously
+emitted cover files only when ``--missing`` option was used. Patch by
+Michael Selik.
+
+..
+
+.. bpo: 31457
+.. date: 2017-10-18-19-05-17
+.. nonce: KlE6r8
+.. section: Library
+
+If nested log adapters are used, the inner ``process()`` methods are no
+longer omitted.
+
+..
+
+.. bpo: 16865
+.. date: 2017-09-29-16-40-38
+.. nonce: l-f6I_
+.. section: Library
+
+Support arrays >=2GiB in :mod:`ctypes`. Patch by Segev Finer.
+
+..
+
+.. bpo: 31238
+.. date: 2017-08-21-12-31-53
+.. nonce: Gg0LRH
+.. section: Library
+
+pydoc: the stop() method of the private ServerThread class now waits until
+DocServer.serve_until_quit() completes and then explicitly sets its
+docserver attribute to None to break a reference cycle.
+
+..
+
+.. bpo: 33503
+.. date: 2018-05-14-20-08-58
+.. nonce: Wvt0qg
+.. section: Documentation
+
+Fix broken pypi link
+
+..
+
+.. bpo: 33421
+.. date: 2018-05-14-15-23-51
+.. nonce: 3GU_QO
+.. section: Documentation
+
+Add missing documentation for ``typing.AsyncContextManager``.
+
+..
+
+.. bpo: 33378
+.. date: 2018-04-29-04-02-18
+.. nonce: -anAHN
+.. section: Documentation
+
+Add Korean language switcher for https://docs.python.org/3/
+
+..
+
+.. bpo: 33276
+.. date: 2018-04-20-14-09-36
+.. nonce: rA1z_3
+.. section: Documentation
+
+Clarify that the ``__path__`` attribute on modules cannot be just any value.
+
+..
+
+.. bpo: 33201
+.. date: 2018-04-01-21-03-41
+.. nonce: aa8Lkl
+.. section: Documentation
+
+Modernize documentation for writing C extension types.
+
+..
+
+.. bpo: 33195
+.. date: 2018-04-01-14-30-36
+.. nonce: dRS-XX
+.. section: Documentation
+
+Deprecate ``Py_UNICODE`` usage in ``c-api/arg`` document. ``Py_UNICODE``
+related APIs are deprecated since Python 3.3, but it is missed in the
+document.
+
+..
+
+.. bpo: 33126
+.. date: 2018-03-28-17-03-17
+.. nonce: 5UGkNv
+.. section: Documentation
+
+Document PyBuffer_ToContiguous().
+
+..
+
+.. bpo: 27212
+.. date: 2018-03-22-19-23-04
+.. nonce: wrE5KR
+.. section: Documentation
+
+Modify documentation for the :func:`islice` recipe to consume initial values
+up to the start index.
+
+..
+
+.. bpo: 28247
+.. date: 2018-03-20-20-11-05
+.. nonce: -V-WS-
+.. section: Documentation
+
+Update :mod:`zipapp` documentation to describe how to make standalone
+applications.
+
+..
+
+.. bpo: 18802
+.. date: 2018-03-11-18-53-47
+.. nonce: JhAqH3
+.. section: Documentation
+
+Documentation changes for ipaddress. Patch by Jon Foster and Berker Peksag.
+
+..
+
+.. bpo: 27428
+.. date: 2018-03-11-00-16-56
+.. nonce: B7A8FT
+.. section: Documentation
+
+Update documentation to clarify that ``WindowsRegistryFinder`` implements
+``MetaPathFinder``. (Patch by Himanshu Lakhara)
+
+..
+
+.. bpo: 8243
+.. date: 2018-01-13-20-30-53
+.. nonce: s98r28
+.. section: Documentation
+
+Add a note about curses.addch and curses.addstr exception behavior when
+writing outside a window, or pad.
+
+..
+
+.. bpo: 31432
+.. date: 2017-09-13-07-14-59
+.. nonce: yAY4Z3
+.. section: Documentation
+
+Clarify meaning of CERT_NONE, CERT_OPTIONAL, and CERT_REQUIRED flags for
+ssl.SSLContext.verify_mode.
+
+..
+
+.. bpo: 33655
+.. date: 2018-05-26-16-01-40
+.. nonce: Frb4LA
+.. section: Tests
+
+Ignore test_posix_fallocate failures on BSD platforms that might be due to
+running on ZFS.
+
+..
+
+.. bpo: 19417
+.. date: 2018-01-08-13-33-47
+.. nonce: 2asoXy
+.. section: Tests
+
+Add test_bdb.py.
+
+..
+
+.. bpo: 5755
+.. date: 2018-06-04-21-34-34
+.. nonce: 65GmCj
+.. section: Build
+
+Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from ``OPT``. This
+option emitted annoying warnings when building extension modules written in
+C++.
+
+..
+
+.. bpo: 33614
+.. date: 2018-05-28-11-40-22
+.. nonce: 28e0sE
+.. section: Build
+
+Ensures module definition files for the stable ABI on Windows are correctly
+regenerated.
+
+..
+
+.. bpo: 33522
+.. date: 2018-05-15-12-44-50
+.. nonce: mJoNcA
+.. section: Build
+
+Enable CI builds on Visual Studio Team Services at
+https://python.visualstudio.com/cpython
+
+..
+
+.. bpo: 33012
+.. date: 2018-05-10-21-10-01
+.. nonce: 5Zfjac
+.. section: Build
+
+Add ``-Wno-cast-function-type`` for gcc 8 for silencing warnings about
+function casts like casting to PyCFunction in method definition lists.
+
+..
+
+.. bpo: 33394
+.. date: 2018-04-30-17-36-46
+.. nonce: _Vdi4t
+.. section: Build
+
+Enable the verbose build for extension modules, when GNU make is passed
+macros on the command line.
+
+..
+
+.. bpo: 33184
+.. date: 2018-04-13-11-39-28
+.. nonce: aEohx0
+.. section: Windows
+
+Update Windows installer to OpenSSL 1.0.2o.
+
+..
+
+.. bpo: 33184
+.. date: 2018-04-07-00-58-50
+.. nonce: rMTiqu
+.. section: macOS
+
+Update macOS installer build to use OpenSSL 1.0.2o.
+
+..
+
+.. bpo: 33656
+.. date: 2018-06-10-17-59-36
+.. nonce: 60ZqJS
+.. section: IDLE
+
+On Windows, add API call saying that tk scales for DPI. On Windows 8.1+ or
+10, with DPI compatibility properties of the Python binary unchanged, and a
+monitor resolution greater than 96 DPI, this should make text and lines
+sharper. It should otherwise have no effect.
+
+..
+
+.. bpo: 33768
+.. date: 2018-06-04-19-23-11
+.. nonce: I_2qpV
+.. section: IDLE
+
+Clicking on a context line moves that line to the top of the editor window.
+
+..
+
+.. bpo: 33763
+.. date: 2018-06-03-20-12-57
+.. nonce: URiFlE
+.. section: IDLE
+
+IDLE: Use read-only text widget for code context instead of label widget.
+
+..
+
+.. bpo: 33664
+.. date: 2018-06-03-09-13-28
+.. nonce: PZzQyL
+.. section: IDLE
+
+Scroll IDLE editor text by lines. Previously, the mouse wheel and scrollbar
+slider moved text by a fixed number of pixels, resulting in partial lines at
+the top of the editor box. The change also applies to the shell and grep
+output windows, but not to read-only text views.
+
+..
+
+.. bpo: 33679
+.. date: 2018-05-29-07-14-37
+.. nonce: MgX_Ui
+.. section: IDLE
+
+Enable theme-specific color configuration for Code Context. Use the
+Highlights tab to see the setting for built-in themes or add settings to
+custom themes.
+
+..
+
+.. bpo: 33642
+.. date: 2018-05-24-20-42-44
+.. nonce: J0VQbS
+.. section: IDLE
+
+Display up to maxlines non-blank lines for Code Context. If there is no
+current context, show a single blank line.
+
+..
+
+.. bpo: 33628
+.. date: 2018-05-23-19-51-07
+.. nonce: sLlFLO
+.. section: IDLE
+
+IDLE: Cleanup codecontext.py and its test.
+
+..
+
+.. bpo: 33564
+.. date: 2018-05-17-19-41-12
+.. nonce: XzHZJe
+.. section: IDLE
+
+IDLE's code context now recognizes async as a block opener.
+
+..
+
+.. bpo: 29706
+.. date: 2018-05-15-17-01-10
+.. nonce: id4H5i
+.. section: IDLE
+
+IDLE now colors async and await as keywords in 3.6. They become full
+keywords in 3.7.
+
+..
+
+.. bpo: 21474
+.. date: 2018-04-29-16-13-02
+.. nonce: bglg-F
+.. section: IDLE
+
+Update word/identifier definition from ascii to unicode. In text and entry
+boxes, this affects selection by double-click, movement left/right by
+control-left/right, and deletion left/right by control-BACKSPACE/DEL.
+
+..
+
+.. bpo: 33204
+.. date: 2018-04-02-00-28-13
+.. nonce: NBsuIv
+.. section: IDLE
+
+IDLE: consistently color invalid string prefixes. A 'u' string prefix cannot
+be paired with either 'r' or 'f'. Consistently color as much of the prefix,
+starting at the right, as is valid. Revise and extend colorizer test.
+
+..
+
+.. bpo: 32831
+.. date: 2018-02-12-08-08-45
+.. nonce: srDRvU
+.. section: IDLE
+
+Add docstrings and tests for codecontext.
+
+..
+
+.. bpo: 33189
+.. date: 2018-04-03-18-10-00
+.. nonce: QrXR00
+.. section: Tools/Demos
+
+:program:`pygettext.py` now recognizes only literal strings as docstrings
+and translatable strings, and rejects bytes literals and f-string
+expressions.
+
+..
+
+.. bpo: 31920
+.. date: 2018-03-26-18-54-24
+.. nonce: u_WKsT
+.. section: Tools/Demos
+
+Fixed handling directories as arguments in the ``pygettext`` script. Based
+on patch by Oleg Krasnikov.
+
+..
+
+.. bpo: 29673
+.. date: 2018-03-16-17-25-05
+.. nonce: m8QtaW
+.. section: Tools/Demos
+
+Fix pystackv and pystack gdbinit macros.
+
+..
+
+.. bpo: 32885
+.. date: 2018-02-20-12-16-47
+.. nonce: dL5x7C
+.. section: Tools/Demos
+
+Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disable automatic
+backup creation (files with ``~`` suffix).
+
+..
+
+.. bpo: 31583
+.. date: 2017-09-26-10-11-21
+.. nonce: TM90_H
+.. section: Tools/Demos
+
+Fix 2to3 for using with --add-suffix option but without --output-dir option
+for relative path to files in current directory.
+
+..
+
+.. bpo: 32374
+.. date: 2018-01-09-17-03-54
+.. nonce: SwwLoz
+.. section: C API
+
+Document that m_traverse for multi-phase initialized modules can be called
+with m_state=NULL, and add a sanity check
--- /dev/null
+.. bpo: 33851
+.. date: 2018-06-13-15-12-25
+.. nonce: SVbqlz
+.. release date: 2018-06-27
+.. section: Library
+
+Fix :func:`ast.get_docstring` for a node that lacks a docstring.
+
+..
+
+.. bpo: 33932
+.. date: 2018-06-21-15-29-59
+.. nonce: VSlXyS
+.. section: C API
+
+Calling Py_Initialize() twice does nothing, instead of failing with a fatal
+error: restore the Python 3.6 behaviour.
--- /dev/null
+.. bpo: 29781
+.. date: 2017-09-05-15-26-30
+.. nonce: LwYtBP
+.. release date: 2017-09-19
+.. section: Security
+
+SSLObject.version() now correctly returns None when handshake over BIO has
+not been performed yet.
+
+..
+
+.. bpo: 29505
+.. date: 2017-08-23-17-02-55
+.. nonce: BL6Yt8
+.. section: Security
+
+Add fuzz tests for float(str), int(str), unicode(str); for oss-fuzz.
+
+..
+
+.. bpo: 30947
+.. date: 2017-08-16-16-35-59
+.. nonce: iNMmm4
+.. section: Security
+
+Upgrade libexpat embedded copy from version 2.2.1 to 2.2.3 to get security
+fixes.
+
+..
+
+.. bpo: 30730
+.. date: 0347
+.. nonce: rJsyTH
+.. original section: Library
+.. section: Security
+
+Prevent environment variables injection in subprocess on Windows. Prevent
+passing other environment variables and command arguments.
+
+..
+
+.. bpo: 30694
+.. date: 0344
+.. nonce: WkMWM_
+.. original section: Library
+.. section: Security
+
+Upgrade expat copy from 2.2.0 to 2.2.1 to get fixes of multiple security
+vulnerabilities including: CVE-2017-9233 (External entity infinite loop
+DoS), CVE-2016-9063 (Integer overflow, re-fix), CVE-2016-0718 (Fix
+regression bugs from 2.2.0's fix to CVE-2016-0718) and CVE-2012-0876
+(Counter hash flooding with SipHash). Note: the CVE-2016-5300 (Use
+os-specific entropy sources like getrandom) doesn't impact Python, since Python
+already gets entropy from the OS to set the expat secret using
+``XML_SetHashSalt()``.
+
+..
+
+.. bpo: 30500
+.. date: 0342
+.. nonce: 1VG7R-
+.. original section: Library
+.. section: Security
+
+Fix urllib.parse.splithost() to correctly parse fragments. For example,
+``splithost('//127.0.0.1#@evil.com/')`` now correctly returns the
+``127.0.0.1`` host, instead of treating ``@evil.com`` as the host in an
+authentication (``login@host``).
+
+..
+
+.. bpo: 29591
+.. date: 0338
+.. nonce: ExKblw
+.. original section: Library
+.. section: Security
+
+Update expat copy from 2.1.1 to 2.2.0 to get fixes of CVE-2016-0718 and
+CVE-2016-4472. See https://sourceforge.net/p/expat/bugs/537/ for more
+information.
+
+..
+
+.. bpo: 31490
+.. date: 2017-09-16-13-32-35
+.. nonce: r7m2sj
+.. section: Core and Builtins
+
+Fix an assertion failure in `ctypes` class definition, in case the class has
+an attribute whose name is specified in ``_anonymous_`` but not in
+``_fields_``. Patch by Oren Milman.
+
+..
+
+.. bpo: 31471
+.. date: 2017-09-14-19-47-57
+.. nonce: 0yiA5Q
+.. section: Core and Builtins
+
+Fix an assertion failure in `subprocess.Popen()` on Windows, in case the env
+argument has a bad keys() method. Patch by Oren Milman.
+
+..
+
+.. bpo: 31418
+.. date: 2017-09-13-13-03-52
+.. nonce: rS-FlC
+.. section: Core and Builtins
+
+Fix an assertion failure in `PyErr_WriteUnraisable()` in case of an
+exception with a bad ``__module__`` attribute. Patch by Oren Milman.
+
+..
+
+.. bpo: 31416
+.. date: 2017-09-11-12-54-35
+.. nonce: 2hlQFd
+.. section: Core and Builtins
+
+Fix assertion failures in case of a bad warnings.filters or
+warnings.defaultaction. Patch by Oren Milman.
+
+..
+
+.. bpo: 28411
+.. date: 2017-09-11-09-24-21
+.. nonce: 12SpAm
+.. section: Core and Builtins
+
+Change direct usage of PyInterpreterState.modules to
+PyImport_GetModuleDict(). Also introduce more uniformity in other code that
+deals with sys.modules. This helps reduce complications when working on
+sys.modules.
+
+..
+
+.. bpo: 28411
+.. date: 2017-09-11-09-11-20
+.. nonce: Ax91lz
+.. section: Core and Builtins
+
+Switch to the abstract API when dealing with ``PyInterpreterState.modules``.
+This allows later support for all dict subclasses and other Mapping
+implementations. Also add a ``PyImport_GetModule()`` function to reduce a
+bunch of duplicated code.
+
+..
+
+.. bpo: 31411
+.. date: 2017-09-11-08-50-41
+.. nonce: HZz82I
+.. section: Core and Builtins
+
+Raise a TypeError instead of SystemError in case warnings.onceregistry is
+not a dictionary. Patch by Oren Milman.
+
+..
+
+.. bpo: 31344
+.. date: 2017-09-06-20-25-47
+.. nonce: XpFs-q
+.. section: Core and Builtins
+
+For finer control of tracing behaviour when testing the interpreter, two new
+frame attributes have been added to control the emission of particular trace
+events: ``f_trace_lines`` (``True`` by default) to turn off per-line trace
+events; and ``f_trace_opcodes`` (``False`` by default) to turn on per-opcode
+trace events.
+
+..
+
+.. bpo: 31373
+.. date: 2017-09-06-15-25-59
+.. nonce: dC4jd4
+.. section: Core and Builtins
+
+Fix several possible instances of undefined behavior due to floating-point
+demotions.
+
+..
+
+.. bpo: 30465
+.. date: 2017-09-06-10-47-29
+.. nonce: oe-3GD
+.. section: Core and Builtins
+
+Location information (``lineno`` and ``col_offset``) in f-strings is now
+(mostly) correct. This fixes tools like flake8 from showing warnings on the
+wrong line (typically the first line of the file).
+
+..
+
+.. bpo: 30860
+.. date: 2017-09-05-13-47-49
+.. nonce: MROpZw
+.. section: Core and Builtins
+
+Consolidate CPython's global runtime state under a single struct. This
+improves discoverability of the runtime state.
+
+..
+
+.. bpo: 31347
+.. date: 2017-09-04-16-35-06
+.. nonce: KDuf2w
+.. section: Core and Builtins
+
+Fix possible undefined behavior in _PyObject_FastCall_Prepend.
+
+..
+
+.. bpo: 31343
+.. date: 2017-09-04-14-57-27
+.. nonce: Kl_fS5
+.. section: Core and Builtins
+
+Include sys/sysmacros.h for major(), minor(), and makedev(). GNU C libray
+plans to remove the functions from sys/types.h.
+
+..
+
+.. bpo: 31291
+.. date: 2017-08-28-11-51-29
+.. nonce: t8QggK
+.. section: Core and Builtins
+
+Fix an assertion failure in `zipimport.zipimporter.get_data` on Windows,
+when the return value of ``pathname.replace('/','\\')`` isn't a string.
+Patch by Oren Milman.
+
+..
+
+.. bpo: 31271
+.. date: 2017-08-25-20-43-22
+.. nonce: YMduKF
+.. section: Core and Builtins
+
+Fix an assertion failure in the write() method of `io.TextIOWrapper`, when
+the encoder doesn't return a bytes object. Patch by Oren Milman.
+
+..
+
+.. bpo: 31243
+.. date: 2017-08-24-13-34-49
+.. nonce: dRJzqR
+.. section: Core and Builtins
+
+Fix a crash in some methods of `io.TextIOWrapper`, when the decoder's state
+is invalid. Patch by Oren Milman.
+
+..
+
+.. bpo: 30721
+.. date: 2017-08-18-15-15-20
+.. nonce: Hmc56z
+.. section: Core and Builtins
+
+``print`` now shows correct usage hint for using Python 2 redirection
+syntax. Patch by Sanyam Khurana.
+
+..
+
+.. bpo: 31070
+.. date: 2017-08-09-09-40-54
+.. nonce: oDyLiI
+.. section: Core and Builtins
+
+Fix a race condition in importlib _get_module_lock().
+
+..
+
+.. bpo: 30747
+.. date: 2017-08-08-12-00-29
+.. nonce: g2kZRT
+.. section: Core and Builtins
+
+Add a non-dummy implementation of _Py_atomic_store and _Py_atomic_load on
+MSVC.
+
+..
+
+.. bpo: 31095
+.. date: 2017-08-01-18-48-30
+.. nonce: bXWZDb
+.. section: Core and Builtins
+
+Fix potential crash during GC caused by ``tp_dealloc`` which doesn't call
+``PyObject_GC_UnTrack()``.
+
+..
+
+.. bpo: 31071
+.. date: 2017-07-31-13-28-53
+.. nonce: P9UBDy
+.. section: Core and Builtins
+
+Avoid masking original TypeError in call with * unpacking when other
+arguments are passed.
+
+..
+
+.. bpo: 30978
+.. date: 2017-07-21-07-39-05
+.. nonce: f0jODc
+.. section: Core and Builtins
+
+str.format_map() now passes key lookup exceptions through. Previously any
+exception was replaced with a KeyError exception.
+
+..
+
+.. bpo: 30808
+.. date: 2017-07-17-12-12-59
+.. nonce: bA3zOv
+.. section: Core and Builtins
+
+Use _Py_atomic API for concurrency-sensitive signal state.
+
+..
+
+.. bpo: 30876
+.. date: 2017-07-11-06-31-32
+.. nonce: x35jZX
+.. section: Core and Builtins
+
+Relative import from unloaded package now reimports the package instead of
+failing with SystemError. Relative import from non-package now fails with
+ImportError rather than SystemError.
+
+..
+
+.. bpo: 30703
+.. date: 2017-06-28-21-07-32
+.. nonce: ULCdFp
+.. section: Core and Builtins
+
+Improve signal delivery.
+Avoid using Py_AddPendingCall from signal handler, to avoid calling
+signal-unsafe functions. The tests I'm adding here fail without the rest of the
+patch, on Linux and OS X. This means our signal delivery logic had defects
+(some signals could be lost).
+
+..
+
+.. bpo: 30765
+.. date: 2017-06-26-14-29-50
+.. nonce: Q5iBmf
+.. section: Core and Builtins
+
+Avoid blocking in pthread_mutex_lock() when PyThread_acquire_lock() is asked
+not to block.
+
+..
+
+.. bpo: 31161
+.. date: 0470
+.. nonce: FcUAA0
+.. section: Core and Builtins
+
+Make sure the 'Missing parentheses' syntax error message is only applied to
+SyntaxError, not to subclasses. Patch by Martijn Pieters.
+
+..
+
+.. bpo: 30814
+.. date: 0469
+.. nonce: HcYsfM
+.. section: Core and Builtins
+
+Fixed a race condition when import a submodule from a package.
+
+..
+
+.. bpo: 30736
+.. date: 0468
+.. nonce: kA4J9v
+.. section: Core and Builtins
+
+The internal unicodedata database has been upgraded to Unicode 10.0.
+
+..
+
+.. bpo: 30604
+.. date: 0467
+.. nonce: zGPGoX
+.. section: Core and Builtins
+
+Move co_extra_freefuncs from per-thread to per-interpreter to avoid crashes.
+
+..
+
+.. bpo: 30597
+.. date: 0466
+.. nonce: 7erHiP
+.. section: Core and Builtins
+
+``print`` now shows expected input in custom error message when used as a
+Python 2 statement. Patch by Sanyam Khurana.
+
+..
+
+.. bpo: 30682
+.. date: 0465
+.. nonce: zZm88E
+.. section: Core and Builtins
+
+Removed a too-strict assertion that failed for certain f-strings, such as
+eval("f'\\\n'") and eval("f'\\\r'").
+
+..
+
+.. bpo: 30501
+.. date: 0464
+.. nonce: BWJByG
+.. section: Core and Builtins
+
+The compiler now produces more optimal code for complex condition
+expressions in the "if", "while" and "assert" statement, the "if"
+expression, and generator expressions and comprehensions.
+
+..
+
+.. bpo: 28180
+.. date: 0463
+.. nonce: f_IHor
+.. section: Core and Builtins
+
+Implement :pep:`538` (legacy C locale coercion). This means that when a
+suitable coercion target locale is available, both the core interpreter and
+locale-aware C extensions will assume the use of UTF-8 as the default text
+encoding, rather than ASCII.
+
+..
+
+.. bpo: 30486
+.. date: 0462
+.. nonce: KZi3nB
+.. section: Core and Builtins
+
+Allows setting cell values for __closure__. Patch by Lisa Roach.
+
+..
+
+.. bpo: 30537
+.. date: 0461
+.. nonce: sGC27r
+.. section: Core and Builtins
+
+itertools.islice now accepts integer-like objects (having an __index__
+method) as start, stop, and slice arguments
+
+..
+
+.. bpo: 25324
+.. date: 0460
+.. nonce: l12VjO
+.. section: Core and Builtins
+
+Tokens needed for parsing in Python moved to C. ``COMMENT``, ``NL`` and
+``ENCODING``. This way the tokens and tok_names in the token module don't
+get changed when you import the tokenize module.
+
+..
+
+.. bpo: 29104
+.. date: 0459
+.. nonce: u26yCx
+.. section: Core and Builtins
+
+Fixed parsing backslashes in f-strings.
+
+..
+
+.. bpo: 27945
+.. date: 0458
+.. nonce: p29r3O
+.. section: Core and Builtins
+
+Fixed various segfaults with dict when input collections are mutated during
+searching, inserting or comparing. Based on patches by Duane Griffin and
+Tim Mitchell.
+
+..
+
+.. bpo: 25794
+.. date: 0457
+.. nonce: xfPwqm
+.. section: Core and Builtins
+
+Fixed type.__setattr__() and type.__delattr__() for non-interned attribute
+names. Based on patch by Eryk Sun.
+
+..
+
+.. bpo: 30039
+.. date: 0456
+.. nonce: e0u4DG
+.. section: Core and Builtins
+
+If a KeyboardInterrupt happens when the interpreter is in the middle of
+resuming a chain of nested 'yield from' or 'await' calls, it's now correctly
+delivered to the innermost frame.
+
+..
+
+.. bpo: 28974
+.. date: 0455
+.. nonce: jVewS0
+.. section: Core and Builtins
+
+``object.__format__(x, '')`` is now equivalent to ``str(x)`` rather than
+``format(str(self), '')``.
+
+..
+
+.. bpo: 30024
+.. date: 0454
+.. nonce: kSOlED
+.. section: Core and Builtins
+
+Circular imports involving absolute imports with binding a submodule to a
+name are now supported.
+
+..
+
+.. bpo: 12414
+.. date: 0453
+.. nonce: T9ix8O
+.. section: Core and Builtins
+
+sys.getsizeof() on a code object now returns the sizes which includes the
+code struct and sizes of objects which it references. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 29839
+.. date: 0452
+.. nonce: rUmfay
+.. section: Core and Builtins
+
+len() now raises ValueError rather than OverflowError if __len__() returned
+a large negative integer.
+
+..
+
+.. bpo: 11913
+.. date: 0451
+.. nonce: 5uiMX9
+.. section: Core and Builtins
+
+README.rst is now included in the list of distutils standard READMEs and
+therefore included in source distributions.
+
+..
+
+.. bpo: 29914
+.. date: 0450
+.. nonce: nqFSRR
+.. section: Core and Builtins
+
+Fixed default implementations of __reduce__ and __reduce_ex__().
+object.__reduce__() no longer takes arguments, object.__reduce_ex__() now
+requires one argument.
+
+..
+
+.. bpo: 29949
+.. date: 0449
+.. nonce: DevGPS
+.. section: Core and Builtins
+
+Fix memory usage regression of set and frozenset object.
+
+..
+
+.. bpo: 29935
+.. date: 0448
+.. nonce: vgjdJo
+.. section: Core and Builtins
+
+Fixed error messages in the index() method of tuple, list and deque when
+pass indices of wrong type.
+
+..
+
+.. bpo: 29816
+.. date: 0447
+.. nonce: 0H75Nl
+.. section: Core and Builtins
+
+Shift operation now has less opportunity to raise OverflowError. ValueError
+always is raised rather than OverflowError for negative counts. Shifting
+zero with non-negative count always returns zero.
+
+..
+
+.. bpo: 24821
+.. date: 0446
+.. nonce: 4DINGV
+.. section: Core and Builtins
+
+Fixed the slowing down to 25 times in the searching of some unlucky Unicode
+characters.
+
+..
+
+.. bpo: 29102
+.. date: 0445
+.. nonce: AW4YPj
+.. section: Core and Builtins
+
+Add a unique ID to PyInterpreterState. This makes it easier to identify
+each subinterpreter.
+
+..
+
+.. bpo: 29894
+.. date: 0444
+.. nonce: Vev6t-
+.. section: Core and Builtins
+
+The deprecation warning is emitted if __complex__ returns an instance of a
+strict subclass of complex. In a future versions of Python this can be an
+error.
+
+..
+
+.. bpo: 29859
+.. date: 0443
+.. nonce: Z1MLcA
+.. section: Core and Builtins
+
+Show correct error messages when any of the pthread_* calls in
+thread_pthread.h fails.
+
+..
+
+.. bpo: 29849
+.. date: 0442
+.. nonce: hafvBD
+.. section: Core and Builtins
+
+Fix a memory leak when an ImportError is raised during from import.
+
+..
+
+.. bpo: 28856
+.. date: 0441
+.. nonce: AFRmo4
+.. section: Core and Builtins
+
+Fix an oversight that %b format for bytes should support objects follow the
+buffer protocol.
+
+..
+
+.. bpo: 29723
+.. date: 0440
+.. nonce: M5omgP
+.. section: Core and Builtins
+
+The ``sys.path[0]`` initialization change for bpo-29139 caused a regression
+by revealing an inconsistency in how sys.path is initialized when executing
+``__main__`` from a zipfile, directory, or other import location. The
+interpreter now consistently avoids ever adding the import location's parent
+directory to ``sys.path``, and ensures no other ``sys.path`` entries are
+inadvertently modified when inserting the import location named on the
+command line.
+
+..
+
+.. bpo: 29568
+.. date: 0439
+.. nonce: 3EtOC-
+.. section: Core and Builtins
+
+Escaped percent "%%" in the format string for classic string formatting no
+longer allows any characters between two percents.
+
+..
+
+.. bpo: 29714
+.. date: 0438
+.. nonce: z-BhVd
+.. section: Core and Builtins
+
+Fix a regression that bytes format may fail when containing zero bytes
+inside.
+
+..
+
+.. bpo: 29695
+.. date: 0437
+.. nonce: z75xXa
+.. section: Core and Builtins
+
+bool(), float(), list() and tuple() no longer take keyword arguments. The
+first argument of int() can now be passes only as positional argument.
+
+..
+
+.. bpo: 28893
+.. date: 0436
+.. nonce: WTKnpj
+.. section: Core and Builtins
+
+Set correct __cause__ for errors about invalid awaitables returned from
+__aiter__ and __anext__.
+
+..
+
+.. bpo: 28876
+.. date: 0435
+.. nonce: cU-sGT
+.. section: Core and Builtins
+
+``bool(range)`` works even if ``len(range)`` raises :exc:`OverflowError`.
+
+..
+
+.. bpo: 29683
+.. date: 0434
+.. nonce: G5iS-P
+.. section: Core and Builtins
+
+Fixes to memory allocation in _PyCode_SetExtra. Patch by Brian Coleman.
+
+..
+
+.. bpo: 29684
+.. date: 0433
+.. nonce: wTgEoh
+.. section: Core and Builtins
+
+Fix minor regression of PyEval_CallObjectWithKeywords. It should raise
+TypeError when kwargs is not a dict. But it might cause segv when args=NULL
+and kwargs is not a dict.
+
+..
+
+.. bpo: 28598
+.. date: 0432
+.. nonce: QxbzQn
+.. section: Core and Builtins
+
+Support __rmod__ for subclasses of str being called before str.__mod__.
+Patch by Martijn Pieters.
+
+..
+
+.. bpo: 29607
+.. date: 0431
+.. nonce: 7NvBA1
+.. section: Core and Builtins
+
+Fix stack_effect computation for CALL_FUNCTION_EX. Patch by Matthieu
+Dartiailh.
+
+..
+
+.. bpo: 29602
+.. date: 0430
+.. nonce: qyyskC
+.. section: Core and Builtins
+
+Fix incorrect handling of signed zeros in complex constructor for complex
+subclasses and for inputs having a __complex__ method. Patch by Serhiy
+Storchaka.
+
+..
+
+.. bpo: 29347
+.. date: 0429
+.. nonce: 1RPPGN
+.. section: Core and Builtins
+
+Fixed possibly dereferencing undefined pointers when creating weakref
+objects.
+
+..
+
+.. bpo: 29463
+.. date: 0428
+.. nonce: h2bg8A
+.. section: Core and Builtins
+
+Add ``docstring`` field to Module, ClassDef, FunctionDef, and
+AsyncFunctionDef ast nodes. docstring is not first stmt in their body
+anymore. It affects ``co_firstlineno`` and ``co_lnotab`` of code object for
+module and class. (Reverted in :issue:`32911`.)
+
+..
+
+.. bpo: 29438
+.. date: 0427
+.. nonce: IKxD6I
+.. section: Core and Builtins
+
+Fixed use-after-free problem in key sharing dict.
+
+..
+
+.. bpo: 29546
+.. date: 0426
+.. nonce: PS1I1T
+.. section: Core and Builtins
+
+Set the 'path' and 'name' attribute on ImportError for ``from ... import
+...``.
+
+..
+
+.. bpo: 29546
+.. date: 0425
+.. nonce: O1rmG_
+.. section: Core and Builtins
+
+Improve from-import error message with location
+
+..
+
+.. bpo: 29478
+.. date: 0424
+.. nonce: rTQ-qy
+.. section: Core and Builtins
+
+If max_line_length=None is specified while using the Compat32 policy, it is
+no longer ignored. Patch by Mircea Cosbuc.
+
+..
+
+.. bpo: 29319
+.. date: 0423
+.. nonce: KLDUZf
+.. section: Core and Builtins
+
+Prevent RunMainFromImporter overwriting sys.path[0].
+
+..
+
+.. bpo: 29337
+.. date: 0422
+.. nonce: bjX8AE
+.. section: Core and Builtins
+
+Fixed possible BytesWarning when compare the code objects. Warnings could be
+emitted at compile time.
+
+..
+
+.. bpo: 29327
+.. date: 0421
+.. nonce: XXQarW
+.. section: Core and Builtins
+
+Fixed a crash when pass the iterable keyword argument to sorted().
+
+..
+
+.. bpo: 29034
+.. date: 0420
+.. nonce: 7-uEDT
+.. section: Core and Builtins
+
+Fix memory leak and use-after-free in os module (path_converter).
+
+..
+
+.. bpo: 29159
+.. date: 0419
+.. nonce: gEn_kP
+.. section: Core and Builtins
+
+Fix regression in bytes(x) when x.__index__() raises Exception.
+
+..
+
+.. bpo: 29049
+.. date: 0418
+.. nonce: KpVXBw
+.. section: Core and Builtins
+
+Call _PyObject_GC_TRACK() lazily when calling Python function. Calling
+function is up to 5% faster.
+
+..
+
+.. bpo: 28927
+.. date: 0417
+.. nonce: 9fxf6y
+.. section: Core and Builtins
+
+bytes.fromhex() and bytearray.fromhex() now ignore all ASCII whitespace, not
+only spaces. Patch by Robert Xiao.
+
+..
+
+.. bpo: 28932
+.. date: 0416
+.. nonce: QnLx8A
+.. section: Core and Builtins
+
+Do not include <sys/random.h> if it does not exist.
+
+..
+
+.. bpo: 25677
+.. date: 0415
+.. nonce: RWhZrb
+.. section: Core and Builtins
+
+Correct the positioning of the syntax error caret for indented blocks. Based
+on patch by Michael Layzell.
+
+..
+
+.. bpo: 29000
+.. date: 0414
+.. nonce: K6wQ-3
+.. section: Core and Builtins
+
+Fixed bytes formatting of octals with zero padding in alternate form.
+
+..
+
+.. bpo: 18896
+.. date: 0413
+.. nonce: Pqe0bg
+.. section: Core and Builtins
+
+Python function can now have more than 255 parameters.
+collections.namedtuple() now supports tuples with more than 255 elements.
+
+..
+
+.. bpo: 28596
+.. date: 0412
+.. nonce: snIJRd
+.. section: Core and Builtins
+
+The preferred encoding is UTF-8 on Android. Patch written by Chi Hsuan Yen.
+
+..
+
+.. bpo: 22257
+.. date: 0411
+.. nonce: 2a8zxB
+.. section: Core and Builtins
+
+Clean up interpreter startup (see :pep:`432`).
+
+..
+
+.. bpo: 26919
+.. date: 0410
+.. nonce: Cm7MSa
+.. section: Core and Builtins
+
+On Android, operating system data is now always encoded/decoded to/from
+UTF-8, instead of the locale encoding to avoid inconsistencies with
+os.fsencode() and os.fsdecode() which are already using UTF-8.
+
+..
+
+.. bpo: 28991
+.. date: 0409
+.. nonce: lGA0FK
+.. section: Core and Builtins
+
+functools.lru_cache() was susceptible to an obscure reentrancy bug
+triggerable by a monkey-patched len() function.
+
+..
+
+.. bpo: 28147
+.. date: 0408
+.. nonce: CnK_xf
+.. section: Core and Builtins
+
+Fix a memory leak in split-table dictionaries: setattr() must not convert
+combined table into split table. Patch written by INADA Naoki.
+
+..
+
+.. bpo: 28739
+.. date: 0407
+.. nonce: w1fvhk
+.. section: Core and Builtins
+
+f-string expressions are no longer accepted as docstrings and by
+ast.literal_eval() even if they do not include expressions.
+
+..
+
+.. bpo: 28512
+.. date: 0406
+.. nonce: i-pv6d
+.. section: Core and Builtins
+
+Fixed setting the offset attribute of SyntaxError by
+PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
+
+..
+
+.. bpo: 28918
+.. date: 0405
+.. nonce: SFVuPz
+.. section: Core and Builtins
+
+Fix the cross compilation of xxlimited when Python has been built with
+Py_DEBUG defined.
+
+..
+
+.. bpo: 23722
+.. date: 0404
+.. nonce: e8BH5h
+.. section: Core and Builtins
+
+Rather than silently producing a class that doesn't support zero-argument
+``super()`` in methods, failing to pass the new ``__classcell__`` namespace
+entry up to ``type.__new__`` now results in a ``DeprecationWarning`` and a
+class that supports zero-argument ``super()``.
+
+..
+
+.. bpo: 28797
+.. date: 0403
+.. nonce: _A0_Z5
+.. section: Core and Builtins
+
+Modifying the class __dict__ inside the __set_name__ method of a descriptor
+that is used inside that class no longer prevents calling the __set_name__
+method of other descriptors.
+
+..
+
+.. bpo: 28799
+.. date: 0402
+.. nonce: cP6V1N
+.. section: Core and Builtins
+
+Remove the ``PyEval_GetCallStats()`` function and deprecate the untested and
+undocumented ``sys.callstats()`` function. Remove the ``CALL_PROFILE``
+special build: use the :func:`sys.setprofile` function, :mod:`cProfile` or
+:mod:`profile` to profile function calls.
+
+..
+
+.. bpo: 12844
+.. date: 0401
+.. nonce: pdr3gY
+.. section: Core and Builtins
+
+More than 255 arguments can now be passed to a function.
+
+..
+
+.. bpo: 28782
+.. date: 0400
+.. nonce: foJV_E
+.. section: Core and Builtins
+
+Fix a bug in the implementation ``yield from`` when checking if the next
+instruction is YIELD_FROM. Regression introduced by WORDCODE (issue #26647).
+
+..
+
+.. bpo: 28774
+.. date: 0399
+.. nonce: cEehAr
+.. section: Core and Builtins
+
+Fix error position of the unicode error in ASCII and Latin1 encoders when a
+string returned by the error handler contains multiple non-encodable
+characters (non-ASCII for the ASCII codec, characters out of the
+U+0000-U+00FF range for Latin1).
+
+..
+
+.. bpo: 28731
+.. date: 0398
+.. nonce: oNF59u
+.. section: Core and Builtins
+
+Optimize _PyDict_NewPresized() to create correct size dict. Improve speed of
+dict literal with constant keys up to 30%.
+
+..
+
+.. bpo: 28532
+.. date: 0397
+.. nonce: KEYJny
+.. section: Core and Builtins
+
+Show sys.version when -V option is supplied twice.
+
+..
+
+.. bpo: 27100
+.. date: 0396
+.. nonce: poVjXq
+.. section: Core and Builtins
+
+The with-statement now checks for __enter__ before it checks for __exit__.
+This gives less confusing error messages when both methods are missing.
+Patch by Jonathan Ellington.
+
+..
+
+.. bpo: 28746
+.. date: 0395
+.. nonce: r5MXdB
+.. section: Core and Builtins
+
+Fix the set_inheritable() file descriptor method on platforms that do not
+have the ioctl FIOCLEX and FIONCLEX commands.
+
+..
+
+.. bpo: 26920
+.. date: 0394
+.. nonce: 1URwGb
+.. section: Core and Builtins
+
+Fix not getting the locale's charset upon initializing the interpreter, on
+platforms that do not have langinfo.
+
+..
+
+.. bpo: 28648
+.. date: 0393
+.. nonce: z7B52W
+.. section: Core and Builtins
+
+Fixed crash in Py_DecodeLocale() in debug build on Mac OS X when decode
+astral characters. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 28665
+.. date: 0392
+.. nonce: v4nx86
+.. section: Core and Builtins
+
+Improve speed of the STORE_DEREF opcode by 40%.
+
+..
+
+.. bpo: 19398
+.. date: 0391
+.. nonce: RYbEGH
+.. section: Core and Builtins
+
+Extra slash no longer added to sys.path components in case of empty
+compile-time PYTHONPATH components.
+
+..
+
+.. bpo: 28621
+.. date: 0390
+.. nonce: eCD7n-
+.. section: Core and Builtins
+
+Sped up converting int to float by reusing faster bits counting
+implementation. Patch by Adrian Wielgosik.
+
+..
+
+.. bpo: 28580
+.. date: 0389
+.. nonce: 8bqBmG
+.. section: Core and Builtins
+
+Optimize iterating split table values. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 28583
+.. date: 0388
+.. nonce: F-QAx1
+.. section: Core and Builtins
+
+PyDict_SetDefault didn't combine split table when needed. Patch by Xiang
+Zhang.
+
+..
+
+.. bpo: 28128
+.. date: 0387
+.. nonce: Lc2sFu
+.. section: Core and Builtins
+
+Deprecation warning for invalid str and byte escape sequences now prints
+better information about where the error occurs. Patch by Serhiy Storchaka
+and Eric Smith.
+
+..
+
+.. bpo: 28509
+.. date: 0386
+.. nonce: _Fa4Uq
+.. section: Core and Builtins
+
+dict.update() no longer allocate unnecessary large memory.
+
+..
+
+.. bpo: 28426
+.. date: 0385
+.. nonce: E_quyK
+.. section: Core and Builtins
+
+Fixed potential crash in PyUnicode_AsDecodedObject() in debug build.
+
+..
+
+.. bpo: 28517
+.. date: 0384
+.. nonce: ExPkm9
+.. section: Core and Builtins
+
+Fixed of-by-one error in the peephole optimizer that caused keeping
+unreachable code.
+
+..
+
+.. bpo: 28214
+.. date: 0383
+.. nonce: 6ECJox
+.. section: Core and Builtins
+
+Improved exception reporting for problematic __set_name__ attributes.
+
+..
+
+.. bpo: 23782
+.. date: 0382
+.. nonce: lonDzj
+.. section: Core and Builtins
+
+Fixed possible memory leak in _PyTraceback_Add() and exception loss in
+PyTraceBack_Here().
+
+..
+
+.. bpo: 28183
+.. date: 0381
+.. nonce: MJZeNd
+.. section: Core and Builtins
+
+Optimize and cleanup dict iteration.
+
+..
+
+.. bpo: 26081
+.. date: 0380
+.. nonce: _x5vjl
+.. section: Core and Builtins
+
+Added C implementation of asyncio.Future. Original patch by Yury Selivanov.
+
+..
+
+.. bpo: 28379
+.. date: 0379
+.. nonce: DuXlco
+.. section: Core and Builtins
+
+Added sanity checks and tests for PyUnicode_CopyCharacters(). Patch by Xiang
+Zhang.
+
+..
+
+.. bpo: 28376
+.. date: 0378
+.. nonce: oPD-5D
+.. section: Core and Builtins
+
+The type of long range iterator is now registered as Iterator. Patch by Oren
+Milman.
+
+..
+
+.. bpo: 28376
+.. date: 0377
+.. nonce: yTEhEo
+.. section: Core and Builtins
+
+Creating instances of range_iterator by calling range_iterator type now is
+disallowed. Calling iter() on range instance is the only way. Patch by Oren
+Milman.
+
+..
+
+.. bpo: 26906
+.. date: 0376
+.. nonce: YBjcwI
+.. section: Core and Builtins
+
+Resolving special methods of uninitialized type now causes implicit
+initialization of the type instead of a fail.
+
+..
+
+.. bpo: 18287
+.. date: 0375
+.. nonce: k6jffS
+.. section: Core and Builtins
+
+PyType_Ready() now checks that tp_name is not NULL. Original patch by Niklas
+Koep.
+
+..
+
+.. bpo: 24098
+.. date: 0374
+.. nonce: XqlP_1
+.. section: Core and Builtins
+
+Fixed possible crash when AST is changed in process of compiling it.
+
+..
+
+.. bpo: 28201
+.. date: 0373
+.. nonce: GWUxAy
+.. section: Core and Builtins
+
+Dict reduces possibility of 2nd conflict in hash table when hashes have same
+lower bits.
+
+..
+
+.. bpo: 28350
+.. date: 0372
+.. nonce: 8M5Eg9
+.. section: Core and Builtins
+
+String constants with null character no longer interned.
+
+..
+
+.. bpo: 26617
+.. date: 0371
+.. nonce: Gh5LvN
+.. section: Core and Builtins
+
+Fix crash when GC runs during weakref callbacks.
+
+..
+
+.. bpo: 27942
+.. date: 0370
+.. nonce: ZGuhns
+.. section: Core and Builtins
+
+String constants now interned recursively in tuples and frozensets.
+
+..
+
+.. bpo: 28289
+.. date: 0369
+.. nonce: l1kHlV
+.. section: Core and Builtins
+
+ImportError.__init__ now resets not specified attributes.
+
+..
+
+.. bpo: 21578
+.. date: 0368
+.. nonce: GI1bhj
+.. section: Core and Builtins
+
+Fixed misleading error message when ImportError called with invalid keyword
+args.
+
+..
+
+.. bpo: 28203
+.. date: 0367
+.. nonce: LRn5vp
+.. section: Core and Builtins
+
+Fix incorrect type in complex(1.0, {2:3}) error message. Patch by Soumya
+Sharma.
+
+..
+
+.. bpo: 28086
+.. date: 0366
+.. nonce: JsQPMQ
+.. section: Core and Builtins
+
+Single var-positional argument of tuple subtype was passed unscathed to the
+C-defined function. Now it is converted to exact tuple.
+
+..
+
+.. bpo: 28214
+.. date: 0365
+.. nonce: zQF8Em
+.. section: Core and Builtins
+
+Now __set_name__ is looked up on the class instead of the instance.
+
+..
+
+.. bpo: 27955
+.. date: 0364
+.. nonce: HC4pZ4
+.. section: Core and Builtins
+
+Fallback on reading /dev/urandom device when the getrandom() syscall fails
+with EPERM, for example when blocked by SECCOMP.
+
+..
+
+.. bpo: 28192
+.. date: 0363
+.. nonce: eR6stU
+.. section: Core and Builtins
+
+Don't import readline in isolated mode.
+
+..
+
+.. bpo: 27441
+.. date: 0362
+.. nonce: scPKax
+.. section: Core and Builtins
+
+Remove some redundant assignments to ob_size in longobject.c. Thanks Oren
+Milman.
+
+..
+
+.. bpo: 27222
+.. date: 0361
+.. nonce: 74PvFk
+.. section: Core and Builtins
+
+Clean up redundant code in long_rshift function. Thanks Oren Milman.
+
+..
+
+.. bpo: 0
+.. date: 0360
+.. nonce: 9EbOiD
+.. section: Core and Builtins
+
+Upgrade internal unicode databases to Unicode version 9.0.0.
+
+..
+
+.. bpo: 28131
+.. date: 0359
+.. nonce: owq0wW
+.. section: Core and Builtins
+
+Fix a regression in zipimport's compile_source(). zipimport should use the
+same optimization level as the interpreter.
+
+..
+
+.. bpo: 28126
+.. date: 0358
+.. nonce: Qf6-uQ
+.. section: Core and Builtins
+
+Replace Py_MEMCPY with memcpy(). Visual Studio can properly optimize
+memcpy().
+
+..
+
+.. bpo: 28120
+.. date: 0357
+.. nonce: e5xc1i
+.. section: Core and Builtins
+
+Fix dict.pop() for splitted dictionary when trying to remove a "pending key"
+(Not yet inserted in split-table). Patch by Xiang Zhang.
+
+..
+
+.. bpo: 26182
+.. date: 0356
+.. nonce: jYlqTO
+.. section: Core and Builtins
+
+Raise DeprecationWarning when async and await keywords are used as
+variable/attribute/class/function name.
+
+..
+
+.. bpo: 26182
+.. date: 0355
+.. nonce: a8JXK2
+.. section: Core and Builtins
+
+Fix a refleak in code that raises DeprecationWarning.
+
+..
+
+.. bpo: 28721
+.. date: 0354
+.. nonce: BO9BUF
+.. section: Core and Builtins
+
+Fix asynchronous generators aclose() and athrow() to handle
+StopAsyncIteration propagation properly.
+
+..
+
+.. bpo: 26110
+.. date: 0353
+.. nonce: KRaID6
+.. section: Core and Builtins
+
+Speed-up method calls: add LOAD_METHOD and CALL_METHOD opcodes.
+
+..
+
+.. bpo: 31499
+.. date: 2017-09-18-10-57-04
+.. nonce: BydYhf
+.. section: Library
+
+xml.etree: Fix a crash when a parser is part of a reference cycle.
+
+..
+
+.. bpo: 31482
+.. date: 2017-09-16-01-53-11
+.. nonce: 39s5dS
+.. section: Library
+
+``random.seed()`` now works with bytes in version=1
+
+..
+
+.. bpo: 28556
+.. date: 2017-09-14-11-02-56
+.. nonce: EUOiYs
+.. section: Library
+
+typing.get_type_hints now finds the right globalns for classes and modules
+by default (when no ``globalns`` was specified by the caller).
+
+..
+
+.. bpo: 28556
+.. date: 2017-09-13-23-27-39
+.. nonce: UmTQvv
+.. section: Library
+
+Speed improvements to the ``typing`` module. Original PRs by Ivan
+Levkivskyi and Mitar.
+
+..
+
+.. bpo: 31544
+.. date: 2017-09-13-19-55-35
+.. nonce: beTh6t
+.. section: Library
+
+The C accelerator module of ElementTree ignored exceptions raised when
+looking up TreeBuilder target methods in XMLParser().
+
+..
+
+.. bpo: 31234
+.. date: 2017-09-13-18-05-56
+.. nonce: lGkcPg
+.. section: Library
+
+socket.create_connection() now fixes manually a reference cycle: clear the
+variable storing the last exception on success.
+
+..
+
+.. bpo: 31457
+.. date: 2017-09-13-13-33-39
+.. nonce: bIVBtI
+.. section: Library
+
+LoggerAdapter objects can now be nested.
+
+..
+
+.. bpo: 31431
+.. date: 2017-09-13-07-37-20
+.. nonce: dj994R
+.. section: Library
+
+SSLContext.check_hostname now automatically sets SSLContext.verify_mode to
+ssl.CERT_REQUIRED instead of failing with a ValueError.
+
+..
+
+.. bpo: 31233
+.. date: 2017-09-13-02-17-11
+.. nonce: r-IPIu
+.. section: Library
+
+socketserver.ThreadingMixIn now keeps a list of non-daemonic threads to wait
+until all these threads complete in server_close().
+
+..
+
+.. bpo: 28638
+.. date: 2017-09-08-14-31-15
+.. nonce: lfbVyH
+.. section: Library
+
+Changed the implementation strategy for collections.namedtuple() to
+substantially reduce the use of exec() in favor of precomputed methods. As a
+result, the *verbose* parameter and *_source* attribute are no longer
+supported. The benefits include 1) having a smaller memory footprint for
+applications using multiple named tuples, 2) faster creation of the named
+tuple class (approx 4x to 6x depending on how it is measured), and 3) minor
+speed-ups for instance creation using __new__, _make, and _replace. (The
+primary patch contributor is Jelle Zijlstra with further improvements by
+INADA Naoki, Serhiy Storchaka, and Raymond Hettinger.)
+
+..
+
+.. bpo: 31400
+.. date: 2017-09-08-14-19-57
+.. nonce: YOTPKi
+.. section: Library
+
+Improves SSL error handling to avoid losing error numbers.
+
+..
+
+.. bpo: 27629
+.. date: 2017-09-07-12-15-56
+.. nonce: 7xJXEy
+.. section: Library
+
+Make return types of SSLContext.wrap_bio() and SSLContext.wrap_socket()
+customizable.
+
+..
+
+.. bpo: 28958
+.. date: 2017-09-06-19-41-01
+.. nonce: x4-K5F
+.. section: Library
+
+ssl.SSLContext() now uses OpenSSL error information when a context cannot be
+instantiated.
+
+..
+
+.. bpo: 28182
+.. date: 2017-09-06-18-49-16
+.. nonce: hRP8Bk
+.. section: Library
+
+The SSL module now raises SSLCertVerificationError when OpenSSL fails to
+verify the peer's certificate. The exception contains more information about
+the error.
+
+..
+
+.. bpo: 27340
+.. date: 2017-09-06-06-50-41
+.. nonce: GgekV5
+.. section: Library
+
+SSLSocket.sendall() now uses memoryview to create slices of data. This fixes
+support for all bytes-like object. It is also more efficient and avoids
+costly copies.
+
+..
+
+.. bpo: 14191
+.. date: 2017-09-05-17-43-00
+.. nonce: vhh2xx
+.. section: Library
+
+A new function ``argparse.ArgumentParser.parse_intermixed_args`` provides
+the ability to parse command lines where there user intermixes options and
+positional arguments.
+
+..
+
+.. bpo: 31178
+.. date: 2017-09-05-14-55-28
+.. nonce: JrSFo7
+.. section: Library
+
+Fix string concatenation bug in rare error path in the subprocess module
+
+..
+
+.. bpo: 31350
+.. date: 2017-09-05-10-30-48
+.. nonce: dXJ-7N
+.. section: Library
+
+Micro-optimize :func:`asyncio._get_running_loop` to become up to 10% faster.
+
+..
+
+.. bpo: 31170
+.. date: 2017-09-04-23-41-35
+.. nonce: QGmJ1t
+.. section: Library
+
+expat: Update libexpat from 2.2.3 to 2.2.4. Fix copying of partial
+characters for UTF-8 input (libexpat bug 115):
+https://github.com/libexpat/libexpat/issues/115
+
+..
+
+.. bpo: 29136
+.. date: 2017-09-04-16-39-49
+.. nonce: vSn1oR
+.. section: Library
+
+Add TLS 1.3 cipher suites and OP_NO_TLSv1_3.
+
+..
+
+.. bpo: 1198569
+.. date: 2017-09-04-10-53-06
+.. nonce: vhh2nY
+.. section: Library
+
+``string.Template`` subclasses can optionally define ``braceidpattern`` if
+they want to specify different placeholder patterns inside and outside the
+braces. If None (the default) it falls back to ``idpattern``.
+
+..
+
+.. bpo: 31326
+.. date: 2017-09-01-18-48-06
+.. nonce: TB05tV
+.. section: Library
+
+concurrent.futures.ProcessPoolExecutor.shutdown() now explicitly closes the
+call queue. Moreover, shutdown(wait=True) now also join the call queue
+thread, to prevent leaking a dangling thread.
+
+..
+
+.. bpo: 27144
+.. date: 2017-08-30-11-26-14
+.. nonce: PEDJsE
+.. section: Library
+
+The ``map()`` and ``as_completed()`` iterators in ``concurrent.futures`` now
+avoid keeping a reference to yielded objects.
+
+..
+
+.. bpo: 31281
+.. date: 2017-08-29-07-14-14
+.. nonce: DcFyNs
+.. section: Library
+
+Fix ``fileinput.FileInput(files, inplace=True)`` when ``files`` contain
+``pathlib.Path`` objects.
+
+..
+
+.. bpo: 10746
+.. date: 2017-08-28-13-01-05
+.. nonce: nmAvfu
+.. section: Library
+
+Fix ctypes producing wrong :pep:`3118` type codes for integer types.
+
+..
+
+.. bpo: 27584
+.. date: 2017-08-24-14-03-14
+.. nonce: r11JHZ
+.. section: Library
+
+``AF_VSOCK`` has been added to the socket interface which allows
+communication between virtual machines and their host.
+
+..
+
+.. bpo: 22536
+.. date: 2017-08-23
+.. nonce: _narf_
+.. section: Library
+
+The subprocess module now sets the filename when FileNotFoundError is raised
+on POSIX systems due to the executable or cwd not being found.
+
+..
+
+.. bpo: 29741
+.. date: 2017-08-23-00-31-32
+.. nonce: EBn_DM
+.. section: Library
+
+Update some methods in the _pyio module to also accept integer types. Patch
+by Oren Milman.
+
+..
+
+.. bpo: 31249
+.. date: 2017-08-22-12-44-48
+.. nonce: STPbb9
+.. section: Library
+
+concurrent.futures: WorkItem.run() used by ThreadPoolExecutor now breaks a
+reference cycle between an exception object and the WorkItem object.
+
+..
+
+.. bpo: 31247
+.. date: 2017-08-21-17-50-27
+.. nonce: 8S3zJp
+.. section: Library
+
+xmlrpc.server now explicitly breaks reference cycles when using
+sys.exc_info() in code handling exceptions.
+
+..
+
+.. bpo: 23835
+.. date: 2017-08-21-16-06-19
+.. nonce: da_4Kz
+.. section: Library
+
+configparser: reading defaults in the ``ConfigParser()`` constructor is now
+using ``read_dict()``, making its behavior consistent with the rest of the
+parser. Non-string keys and values in the defaults dictionary are now being
+implicitly converted to strings. Patch by James Tocknell.
+
+..
+
+.. bpo: 31238
+.. date: 2017-08-21-12-31-53
+.. nonce: Gg0LRH
+.. section: Library
+
+pydoc: the stop() method of the private ServerThread class now waits until
+DocServer.serve_until_quit() completes and then explicitly sets its
+docserver attribute to None to break a reference cycle.
+
+..
+
+.. bpo: 5001
+.. date: 2017-08-18-17-16-38
+.. nonce: gwnthq
+.. section: Library
+
+Many asserts in `multiprocessing` are now more informative, and some error
+types have been changed to more specific ones.
+
+..
+
+.. bpo: 31109
+.. date: 2017-08-17-20-29-45
+.. nonce: 7qtC64
+.. section: Library
+
+Convert zipimport to use Argument Clinic.
+
+..
+
+.. bpo: 30102
+.. date: 2017-08-16-21-14-31
+.. nonce: 1sPqmc
+.. section: Library
+
+The ssl and hashlib modules now call OPENSSL_add_all_algorithms_noconf() on
+OpenSSL < 1.1.0. The function detects CPU features and enables optimizations
+on some CPU architectures such as POWER8. Patch is based on research from
+Gustavo Serra Scalet.
+
+..
+
+.. bpo: 18966
+.. date: 2017-08-16-20-28-06
+.. nonce: mjHWk2
+.. section: Library
+
+Non-daemonic threads created by a multiprocessing.Process are now joined on
+child exit.
+
+..
+
+.. bpo: 31183
+.. date: 2017-08-13-09-17-01
+.. nonce: -2_YGj
+.. section: Library
+
+`dis` now works with asynchronous generator and coroutine objects. Patch by
+George Collins based on diagnosis by Luciano Ramalho.
+
+..
+
+.. bpo: 5001
+.. date: 2017-08-12-09-25-55
+.. nonce: huQi2Y
+.. section: Library
+
+There are a number of uninformative asserts in the `multiprocessing` module,
+as noted in issue 5001. This change fixes two of the most potentially
+problematic ones, since they are in error-reporting code, in the
+`multiprocessing.managers.convert_to_error` function. (It also makes more
+informative a ValueError message.) The only potentially problematic change
+is that the AssertionError is now a TypeError; however, this should also
+help distinguish it from an AssertionError being *reported* by the
+function/its caller (such as in issue 31169). - Patch by Allen W. Smith
+(drallensmith on github).
+
+..
+
+.. bpo: 31185
+.. date: 2017-08-11-19-30-00
+.. nonce: i6TPgL
+.. section: Library
+
+Fixed miscellaneous errors in asyncio speedup module.
+
+..
+
+.. bpo: 31151
+.. date: 2017-08-10-13-20-02
+.. nonce: 730VBI
+.. section: Library
+
+socketserver.ForkingMixIn.server_close() now waits until all child processes
+completed to prevent leaking zombie processes.
+
+..
+
+.. bpo: 31072
+.. date: 2017-08-09-13-45-23
+.. nonce: NLXDPV
+.. section: Library
+
+Add an ``include_file`` parameter to ``zipapp.create_archive()``
+
+..
+
+.. bpo: 24700
+.. date: 2017-08-08-15-14-34
+.. nonce: 44mvNV
+.. section: Library
+
+Optimize array.array comparison. It is now from 10x up to 70x faster when
+comparing arrays holding values of the same integer type.
+
+..
+
+.. bpo: 31135
+.. date: 2017-08-08-14-44-37
+.. nonce: HH94xR
+.. section: Library
+
+ttk: fix the destroy() method of LabeledScale and OptionMenu classes. Call
+the parent destroy() method even if the used attribute doesn't exist. The
+LabeledScale.destroy() method now also explicitly clears label and scale
+attributes to help the garbage collector to destroy all widgets.
+
+..
+
+.. bpo: 31107
+.. date: 2017-08-02-12-48-15
+.. nonce: 1t2hn5
+.. section: Library
+
+Fix `copyreg._slotnames()` mangled attribute calculation for classes whose
+name begins with an underscore. Patch by Shane Harvey.
+
+..
+
+.. bpo: 31080
+.. date: 2017-08-01-18-26-55
+.. nonce: 2CFVCO
+.. section: Library
+
+Allow `logging.config.fileConfig` to accept kwargs and/or args.
+
+..
+
+.. bpo: 30897
+.. date: 2017-08-01-15-56-50
+.. nonce: OuT1-Y
+.. section: Library
+
+``pathlib.Path`` objects now include an ``is_mount()`` method (only
+implemented on POSIX). This is similar to ``os.path.ismount(p)``. Patch by
+Cooper Ry Lees.
+
+..
+
+.. bpo: 31061
+.. date: 2017-08-01-09-32-58
+.. nonce: husAYX
+.. section: Library
+
+Fixed a crash when using asyncio and threads.
+
+..
+
+.. bpo: 30987
+.. date: 2017-07-30-22-00-12
+.. nonce: 228rW0
+.. section: Library
+
+Added support for CAN ISO-TP protocol in the socket module.
+
+..
+
+.. bpo: 30522
+.. date: 2017-07-30-10-07-58
+.. nonce: gAX1N-
+.. section: Library
+
+Added a ``setStream`` method to ``logging.StreamHandler`` to allow the
+stream to be set after creation.
+
+..
+
+.. bpo: 30502
+.. date: 2017-07-27-11-33-58
+.. nonce: GJlfU8
+.. section: Library
+
+Fix handling of long oids in ssl. Based on patch by Christian Heimes.
+
+..
+
+.. bpo: 5288
+.. date: 2017-07-26-13-18-29
+.. nonce: o_xEGj
+.. section: Library
+
+Support tzinfo objects with sub-minute offsets.
+
+..
+
+.. bpo: 30919
+.. date: 2017-07-23-11-33-10
+.. nonce: 5dYRru
+.. section: Library
+
+Fix shared memory performance regression in multiprocessing in 3.x.
+Shared memory used anonymous memory mappings in 2.x, while 3.x mmaps actual
+files. Try to be careful to do as little disk I/O as possible.
+
+..
+
+.. bpo: 26732
+.. date: 2017-07-22-12-12-42
+.. nonce: lYLWBH
+.. section: Library
+
+Fix too many fds in processes started with the "forkserver" method.
+A child process would inherit as many fds as the number of still-running
+children.
+
+..
+
+.. bpo: 29403
+.. date: 2017-07-20-02-29-49
+.. nonce: 3RinCV
+.. section: Library
+
+Fix ``unittest.mock``'s autospec to not fail on method-bound builtin
+functions. Patch by Aaron Gallagher.
+
+..
+
+.. bpo: 30961
+.. date: 2017-07-18-23-47-51
+.. nonce: 064jz0
+.. section: Library
+
+Fix decrementing a borrowed reference in tracemalloc.
+
+..
+
+.. bpo: 19896
+.. date: 2017-07-18-13-24-50
+.. nonce: -S0IWu
+.. section: Library
+
+Fix multiprocessing.sharedctypes to recognize typecodes ``'q'`` and ``'Q'``.
+
+..
+
+.. bpo: 30946
+.. date: 2017-07-17-12-32-47
+.. nonce: DUo-uA
+.. section: Library
+
+Remove obsolete code in readline module for platforms where GNU readline is
+older than 2.1 or where select() is not available.
+
+..
+
+.. bpo: 25684
+.. date: 2017-07-17-11-35-00
+.. nonce: usELVx
+.. section: Library
+
+Change ``ttk.OptionMenu`` radiobuttons to be unique across instances of
+``OptionMenu``.
+
+..
+
+.. bpo: 30886
+.. date: 2017-07-10-12-14-22
+.. nonce: nqQj34
+.. section: Library
+
+Fix multiprocessing.Queue.join_thread(): it now waits until the thread
+completes, even if the thread was started by the same process which created
+the queue.
+
+..
+
+.. bpo: 29854
+.. date: 2017-07-07-02-18-57
+.. nonce: J8wKb_
+.. section: Library
+
+Fix segfault in readline when using readline's history-size option. Patch
+by Nir Soffer.
+
+..
+
+.. bpo: 30794
+.. date: 2017-07-04-22-00-20
+.. nonce: qFwozm
+.. section: Library
+
+Added multiprocessing.Process.kill method to terminate using the SIGKILL
+signal on Unix.
+
+..
+
+.. bpo: 30319
+.. date: 2017-07-04-13-48-21
+.. nonce: hg_3TX
+.. section: Library
+
+socket.close() now ignores ECONNRESET error.
+
+..
+
+.. bpo: 30828
+.. date: 2017-07-04-13-10-52
+.. nonce: CLvEvV
+.. section: Library
+
+Fix out of bounds write in `asyncio.CFuture.remove_done_callback()`.
+
+..
+
+.. bpo: 30302
+.. date: 2017-06-30-23-05-47
+.. nonce: itwK_k
+.. section: Library
+
+Use keywords in the ``repr`` of ``datetime.timedelta``.
+
+..
+
+.. bpo: 30807
+.. date: 2017-06-29-22-04-44
+.. nonce: sLtjY-
+.. section: Library
+
+signal.setitimer() may disable the timer when passed a tiny value.
+Tiny values (such as 1e-6) are valid non-zero values for setitimer(), which
+is specified as taking microsecond-resolution intervals. However, on some
+platform, our conversion routine could convert 1e-6 into a zero interval,
+therefore disabling the timer instead of (re-)scheduling it.
+
+..
+
+.. bpo: 30441
+.. date: 2017-06-29-14-25-14
+.. nonce: 3Wh9kc
+.. section: Library
+
+Fix bug when modifying os.environ while iterating over it
+
+..
+
+.. bpo: 29585
+.. date: 2017-06-29-00-17-38
+.. nonce: x2V0my
+.. section: Library
+
+Avoid importing ``sysconfig`` from ``site`` to improve startup speed. Python
+startup is about 5% faster on Linux and 30% faster on macOS.
+
+..
+
+.. bpo: 29293
+.. date: 2017-06-29-00-07-22
+.. nonce: Z6WZjD
+.. section: Library
+
+Add missing parameter "n" on multiprocessing.Condition.notify().
+The doc claims multiprocessing.Condition behaves like threading.Condition,
+but its notify() method lacked the optional "n" argument (to specify the
+number of sleepers to wake up) that threading.Condition.notify() accepts.
+
+..
+
+.. bpo: 30532
+.. date: 2017-06-26-11-01-59
+.. nonce: qTeL1o
+.. section: Library
+
+Fix email header value parser dropping folding white space in certain cases.
+
+..
+
+.. bpo: 30596
+.. date: 2017-06-24-18-55-58
+.. nonce: VhB8iG
+.. section: Library
+
+Add a ``close()`` method to ``multiprocessing.Process``.
+
+..
+
+.. bpo: 9146
+.. date: 2017-05-24-00-00-00
+.. nonce: pinky_
+.. section: Library
+
+Fix a segmentation fault in _hashopenssl when standard hash functions such
+as md5 are not available in the linked OpenSSL library. As in some special
+FIPS-140 build environments.
+
+..
+
+.. bpo: 29169
+.. date: 0352
+.. nonce: 8ypApm
+.. section: Library
+
+Update zlib to 1.2.11.
+
+..
+
+.. bpo: 30119
+.. date: 0351
+.. nonce: 4UMLNh
+.. section: Library
+
+ftplib.FTP.putline() now throws ValueError on commands that contains CR or
+LF. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 30879
+.. date: 0350
+.. nonce: N3KI-o
+.. section: Library
+
+os.listdir() and os.scandir() now emit bytes names when called with
+bytes-like argument.
+
+..
+
+.. bpo: 30746
+.. date: 0349
+.. nonce: 7drQI0
+.. section: Library
+
+Prohibited the '=' character in environment variable names in
+``os.putenv()`` and ``os.spawn*()``.
+
+..
+
+.. bpo: 30664
+.. date: 0348
+.. nonce: oyqiUl
+.. section: Library
+
+The description of a unittest subtest now preserves the order of keyword
+arguments of TestCase.subTest().
+
+..
+
+.. bpo: 21071
+.. date: 0346
+.. nonce: Sw37rs
+.. section: Library
+
+struct.Struct.format type is now :class:`str` instead of :class:`bytes`.
+
+..
+
+.. bpo: 29212
+.. date: 0345
+.. nonce: HmTdef
+.. section: Library
+
+Fix concurrent.futures.thread.ThreadPoolExecutor threads to have a non
+repr() based thread name by default when no thread_name_prefix is supplied.
+They will now identify themselves as "ThreadPoolExecutor-y_n".
+
+..
+
+.. bpo: 29755
+.. date: 0343
+.. nonce: diQcY_
+.. section: Library
+
+Fixed the lgettext() family of functions in the gettext module. They now
+always return bytes.
+
+..
+
+.. bpo: 30616
+.. date: 0341
+.. nonce: I2mDTz
+.. section: Library
+
+Functional API of enum allows to create empty enums. Patched by Dong-hee Na
+
+..
+
+.. bpo: 30038
+.. date: 0340
+.. nonce: vb4DWk
+.. section: Library
+
+Fix race condition between signal delivery and wakeup file descriptor. Patch
+by Nathaniel Smith.
+
+..
+
+.. bpo: 23894
+.. date: 0339
+.. nonce: k2pADV
+.. section: Library
+
+lib2to3 now recognizes ``rb'...'`` and ``f'...'`` strings.
+
+..
+
+.. bpo: 24744
+.. date: 0337
+.. nonce: NKxUj3
+.. section: Library
+
+pkgutil.walk_packages function now raises ValueError if *path* is a string.
+Patch by Sanyam Khurana.
+
+..
+
+.. bpo: 24484
+.. date: 0336
+.. nonce: vFem8K
+.. section: Library
+
+Avoid race condition in multiprocessing cleanup.
+
+..
+
+.. bpo: 30589
+.. date: 0335
+.. nonce: xyZGM0
+.. section: Library
+
+Fix multiprocessing.Process.exitcode to return the opposite of the signal
+number when the process is killed by a signal (instead of 255) when using
+the "forkserver" method.
+
+..
+
+.. bpo: 28994
+.. date: 0334
+.. nonce: 9vzun1
+.. section: Library
+
+The traceback no longer displayed for SystemExit raised in a callback
+registered by atexit.
+
+..
+
+.. bpo: 30508
+.. date: 0333
+.. nonce: wNWRS2
+.. section: Library
+
+Don't log exceptions if Task/Future "cancel()" method was called.
+
+..
+
+.. bpo: 30645
+.. date: 0332
+.. nonce: xihJ4Y
+.. section: Library
+
+Fix path calculation in `imp.load_package()`, fixing it for cases when a
+package is only shipped with bytecodes. Patch by Alexandru Ardelean.
+
+..
+
+.. bpo: 11822
+.. date: 0331
+.. nonce: GQmKw3
+.. section: Library
+
+The dis.dis() function now is able to disassemble nested code objects.
+
+..
+
+.. bpo: 30624
+.. date: 0330
+.. nonce: g5oVSn
+.. section: Library
+
+selectors does not take KeyboardInterrupt and SystemExit into account,
+leaving a fd in a bad state in case of error. Patch by Giampaolo Rodola'.
+
+..
+
+.. bpo: 30595
+.. date: 0329
+.. nonce: d0nRRA
+.. section: Library
+
+multiprocessing.Queue.get() with a timeout now polls its reader in
+non-blocking mode if it succeeded to acquire the lock but the acquire took
+longer than the timeout.
+
+..
+
+.. bpo: 28556
+.. date: 0328
+.. nonce: mESP7G
+.. section: Library
+
+Updates to typing module: Add generic AsyncContextManager, add support for
+ContextManager on all versions. Original PRs by Jelle Zijlstra and Ivan
+Levkivskyi
+
+..
+
+.. bpo: 30605
+.. date: 0327
+.. nonce: XqGz1r
+.. section: Library
+
+re.compile() no longer raises a BytesWarning when compiling a bytes instance
+with misplaced inline modifier. Patch by Roy Williams.
+
+..
+
+.. bpo: 29870
+.. date: 0326
+.. nonce: p960Ih
+.. section: Library
+
+Fix ssl sockets leaks when connection is aborted in asyncio/ssl
+implementation. Patch by Michaël Sghaïer.
+
+..
+
+.. bpo: 29743
+.. date: 0325
+.. nonce: en2P4s
+.. section: Library
+
+Closing transport during handshake process leaks open socket. Patch by
+Nikolay Kim
+
+..
+
+.. bpo: 27585
+.. date: 0324
+.. nonce: 0Ugqqu
+.. section: Library
+
+Fix waiter cancellation in asyncio.Lock. Patch by Mathieu Sornay.
+
+..
+
+.. bpo: 30014
+.. date: 0323
+.. nonce: x7Yx6o
+.. section: Library
+
+modify() method of poll(), epoll() and devpoll() based classes of selectors
+module is around 10% faster. Patch by Giampaolo Rodola'.
+
+..
+
+.. bpo: 30418
+.. date: 0322
+.. nonce: EwISQm
+.. section: Library
+
+On Windows, subprocess.Popen.communicate() now also ignore EINVAL on
+stdin.write() if the child process is still running but closed the pipe.
+
+..
+
+.. bpo: 30463
+.. date: 0321
+.. nonce: CdOuSl
+.. section: Library
+
+Addded empty __slots__ to abc.ABC. This allows subclassers to deny __dict__
+and __weakref__ creation. Patch by Aaron Hall.
+
+..
+
+.. bpo: 30520
+.. date: 0320
+.. nonce: VYzaSn
+.. section: Library
+
+Loggers are now pickleable.
+
+..
+
+.. bpo: 30557
+.. date: 0319
+.. nonce: uykrLf
+.. section: Library
+
+faulthandler now correctly filters and displays exception codes on Windows
+
+..
+
+.. bpo: 30526
+.. date: 0318
+.. nonce: 7zTG30
+.. section: Library
+
+Add TextIOWrapper.reconfigure() and a TextIOWrapper.write_through attribute.
+
+..
+
+.. bpo: 30245
+.. date: 0317
+.. nonce: Xoa_8Y
+.. section: Library
+
+Fix possible overflow when organize struct.pack_into error message. Patch
+by Yuan Liu.
+
+..
+
+.. bpo: 30378
+.. date: 0316
+.. nonce: R_19_5
+.. section: Library
+
+Fix the problem that logging.handlers.SysLogHandler cannot handle IPv6
+addresses.
+
+..
+
+.. bpo: 16500
+.. date: 0315
+.. nonce: 9ypo9k
+.. section: Library
+
+Allow registering at-fork handlers.
+
+..
+
+.. bpo: 30470
+.. date: 0314
+.. nonce: wAYhUc
+.. section: Library
+
+Deprecate invalid ctypes call protection on Windows. Patch by Mariatta
+Wijaya.
+
+..
+
+.. bpo: 30414
+.. date: 0313
+.. nonce: jGl1Lb
+.. section: Library
+
+multiprocessing.Queue._feed background running thread do not break from main
+loop on exception.
+
+..
+
+.. bpo: 30003
+.. date: 0312
+.. nonce: BOl9HE
+.. section: Library
+
+Fix handling escape characters in HZ codec. Based on patch by Ma Lin.
+
+..
+
+.. bpo: 30149
+.. date: 0311
+.. nonce: hE649r
+.. section: Library
+
+inspect.signature() now supports callables with variable-argument parameters
+wrapped with partialmethod. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 30436
+.. date: 0310
+.. nonce: b3zqE7
+.. section: Library
+
+importlib.find_spec() raises ModuleNotFoundError instead of AttributeError
+if the specified parent module is not a package (i.e. lacks a __path__
+attribute).
+
+..
+
+.. bpo: 30301
+.. date: 0309
+.. nonce: ywOkjN
+.. section: Library
+
+Fix AttributeError when using SimpleQueue.empty() under *spawn* and
+*forkserver* start methods.
+
+..
+
+.. bpo: 30375
+.. date: 0308
+.. nonce: 9c8qM7
+.. section: Library
+
+Warnings emitted when compile a regular expression now always point to the
+line in the user code. Previously they could point into inners of the re
+module if emitted from inside of groups or conditionals.
+
+..
+
+.. bpo: 30329
+.. date: 0307
+.. nonce: EuT36N
+.. section: Library
+
+imaplib and poplib now catch the Windows socket WSAEINVAL error (code 10022)
+on shutdown(SHUT_RDWR): An invalid operation was attempted. This error
+occurs sometimes on SSL connections.
+
+..
+
+.. bpo: 29196
+.. date: 0306
+.. nonce: qBq9eB
+.. section: Library
+
+Removed previously deprecated in Python 2.4 classes Plist, Dict and
+_InternalDict in the plistlib module. Dict values in the result of
+functions readPlist() and readPlistFromBytes() are now normal dicts. You no
+longer can use attribute access to access items of these dictionaries.
+
+..
+
+.. bpo: 9850
+.. date: 0305
+.. nonce: c6SMxt
+.. section: Library
+
+The :mod:`macpath` is now deprecated and will be removed in Python 3.8.
+
+..
+
+.. bpo: 30299
+.. date: 0304
+.. nonce: O-5d4A
+.. section: Library
+
+Compiling regular expression in debug mode on CPython now displays the
+compiled bytecode in human readable form.
+
+..
+
+.. bpo: 30048
+.. date: 0303
+.. nonce: ELRx8R
+.. section: Library
+
+Fixed ``Task.cancel()`` can be ignored when the task is running coroutine
+and the coroutine returned without any more ``await``.
+
+..
+
+.. bpo: 30266
+.. date: 0302
+.. nonce: YJzHAH
+.. section: Library
+
+contextlib.AbstractContextManager now supports anti-registration by setting
+__enter__ = None or __exit__ = None, following the pattern introduced in
+bpo-25958. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 30340
+.. date: 0301
+.. nonce: kvtGm-
+.. section: Library
+
+Enhanced regular expressions optimization. This increased the performance of
+matching some patterns up to 25 times.
+
+..
+
+.. bpo: 30298
+.. date: 0300
+.. nonce: ZN-bWo
+.. section: Library
+
+Weaken the condition of deprecation warnings for inline modifiers. Now
+allowed several subsequential inline modifiers at the start of the pattern
+(e.g. ``'(?i)(?s)...'``). In verbose mode whitespaces and comments now are
+allowed before and between inline modifiers (e.g. ``'(?x) (?i) (?s)...'``).
+
+..
+
+.. bpo: 30285
+.. date: 0299
+.. nonce: s1vpsO
+.. section: Library
+
+Optimized case-insensitive matching and searching of regular expressions.
+
+..
+
+.. bpo: 29990
+.. date: 0298
+.. nonce: HWV6KE
+.. section: Library
+
+Fix range checking in GB18030 decoder. Original patch by Ma Lin.
+
+..
+
+.. bpo: 29979
+.. date: 0297
+.. nonce: jGBMyE
+.. section: Library
+
+rewrite cgi.parse_multipart, reusing the FieldStorage class and making its
+results consistent with those of FieldStorage for multipart/form-data
+requests. Patch by Pierre Quentel.
+
+..
+
+.. bpo: 30243
+.. date: 0296
+.. nonce: RHQt0v
+.. section: Library
+
+Removed the __init__ methods of _json's scanner and encoder. Misusing them
+could cause memory leaks or crashes. Now scanner and encoder objects are
+completely initialized in the __new__ methods.
+
+..
+
+.. bpo: 30215
+.. date: 0295
+.. nonce: SY8738
+.. section: Library
+
+Compiled regular expression objects with the re.LOCALE flag no longer depend
+on the locale at compile time. Only the locale at matching time affects the
+result of matching.
+
+..
+
+.. bpo: 30185
+.. date: 0294
+.. nonce: Tiu1n8
+.. section: Library
+
+Avoid KeyboardInterrupt tracebacks in forkserver helper process when Ctrl-C
+is received.
+
+..
+
+.. bpo: 30103
+.. date: 0293
+.. nonce: mmPjf5
+.. section: Library
+
+binascii.b2a_uu() and uu.encode() now support using ``'`'`` as zero instead
+of space.
+
+..
+
+.. bpo: 28556
+.. date: 0292
+.. nonce: 51gjbP
+.. section: Library
+
+Various updates to typing module: add typing.NoReturn type, use
+WrapperDescriptorType, minor bug-fixes. Original PRs by Jim
+Fasarakis-Hilliard and Ivan Levkivskyi.
+
+..
+
+.. bpo: 30205
+.. date: 0291
+.. nonce: BsxO34
+.. section: Library
+
+Fix getsockname() for unbound AF_UNIX sockets on Linux.
+
+..
+
+.. bpo: 30228
+.. date: 0290
+.. nonce: nF8Ov4
+.. section: Library
+
+The seek() and tell() methods of io.FileIO now set the internal seekable
+attribute to avoid one syscall on open() (in buffered or text mode).
+
+..
+
+.. bpo: 30190
+.. date: 0289
+.. nonce: 5E7Hyb
+.. section: Library
+
+unittest's assertAlmostEqual and assertNotAlmostEqual provide a better
+message in case of failure which includes the difference between left and
+right arguments. (patch by Giampaolo Rodola')
+
+..
+
+.. bpo: 30101
+.. date: 0288
+.. nonce: hxUqSL
+.. section: Library
+
+Add support for curses.A_ITALIC.
+
+..
+
+.. bpo: 29822
+.. date: 0287
+.. nonce: G7dX13
+.. section: Library
+
+inspect.isabstract() now works during __init_subclass__. Patch by Nate
+Soares.
+
+..
+
+.. bpo: 29960
+.. date: 0286
+.. nonce: g0wr3r
+.. section: Library
+
+Preserve generator state when _random.Random.setstate() raises an exception.
+Patch by Bryan Olson.
+
+..
+
+.. bpo: 30070
+.. date: 0285
+.. nonce: XM_B41
+.. section: Library
+
+Fixed leaks and crashes in errors handling in the parser module.
+
+..
+
+.. bpo: 22352
+.. date: 0284
+.. nonce: gIQ5qC
+.. section: Library
+
+Column widths in the output of dis.dis() are now adjusted for large line
+numbers and instruction offsets.
+
+..
+
+.. bpo: 30061
+.. date: 0283
+.. nonce: 2w_dX9
+.. section: Library
+
+Fixed crashes in IOBase methods __next__() and readlines() when readline()
+or __next__() respectively return non-sizeable object. Fixed possible other
+errors caused by not checking results of PyObject_Size(), PySequence_Size(),
+or PyMapping_Size().
+
+..
+
+.. bpo: 30218
+.. date: 0282
+.. nonce: ab5oIg
+.. section: Library
+
+Fix PathLike support for shutil.unpack_archive. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 10076
+.. date: 0281
+.. nonce: qCnwly
+.. section: Library
+
+Compiled regular expression and match objects in the re module now support
+copy.copy() and copy.deepcopy() (they are considered atomic).
+
+..
+
+.. bpo: 30068
+.. date: 0280
+.. nonce: n4q47r
+.. section: Library
+
+_io._IOBase.readlines will check if it's closed first when hint is present.
+
+..
+
+.. bpo: 29694
+.. date: 0279
+.. nonce: LWKxb1
+.. section: Library
+
+Fixed race condition in pathlib mkdir with flags parents=True. Patch by
+Armin Rigo.
+
+..
+
+.. bpo: 29692
+.. date: 0278
+.. nonce: oyWrAE
+.. section: Library
+
+Fixed arbitrary unchaining of RuntimeError exceptions in
+contextlib.contextmanager. Patch by Siddharth Velankar.
+
+..
+
+.. bpo: 26187
+.. date: 0277
+.. nonce: aViyiR
+.. section: Library
+
+Test that sqlite3 trace callback is not called multiple times when schema is
+changing. Indirectly fixed by switching to use sqlite3_prepare_v2() in
+bpo-9303. Patch by Aviv Palivoda.
+
+..
+
+.. bpo: 30017
+.. date: 0276
+.. nonce: cKBuhU
+.. section: Library
+
+Allowed calling the close() method of the zip entry writer object multiple
+times. Writing to a closed writer now always produces a ValueError.
+
+..
+
+.. bpo: 29998
+.. date: 0275
+.. nonce: poeIKD
+.. section: Library
+
+Pickling and copying ImportError now preserves name and path attributes.
+
+..
+
+.. bpo: 29995
+.. date: 0274
+.. nonce: b3mOqx
+.. section: Library
+
+re.escape() now escapes only regex special characters.
+
+..
+
+.. bpo: 29962
+.. date: 0273
+.. nonce: r-ibsN
+.. section: Library
+
+Add math.remainder operation, implementing remainder as specified in IEEE
+754.
+
+..
+
+.. bpo: 29649
+.. date: 0272
+.. nonce: 2eIxQ8
+.. section: Library
+
+Improve struct.pack_into() exception messages for problems with the buffer
+size and offset. Patch by Andrew Nester.
+
+..
+
+.. bpo: 29654
+.. date: 0271
+.. nonce: xRFPge
+.. section: Library
+
+Support If-Modified-Since HTTP header (browser cache). Patch by Pierre
+Quentel.
+
+..
+
+.. bpo: 29931
+.. date: 0270
+.. nonce: tfcTwK
+.. section: Library
+
+Fixed comparison check for ipaddress.ip_interface objects. Patch by Sanjay
+Sundaresan.
+
+..
+
+.. bpo: 29953
+.. date: 0269
+.. nonce: Q1hSt-
+.. section: Library
+
+Fixed memory leaks in the replace() method of datetime and time objects when
+pass out of bound fold argument.
+
+..
+
+.. bpo: 29942
+.. date: 0268
+.. nonce: CsGNuT
+.. section: Library
+
+Fix a crash in itertools.chain.from_iterable when encountering long runs of
+empty iterables.
+
+..
+
+.. bpo: 10030
+.. date: 0267
+.. nonce: ZdhU3k
+.. section: Library
+
+Sped up reading encrypted ZIP files by 2 times.
+
+..
+
+.. bpo: 29204
+.. date: 0266
+.. nonce: 8Hbqn2
+.. section: Library
+
+Element.getiterator() and the html parameter of XMLParser() were deprecated
+only in the documentation (since Python 3.2 and 3.4 correspondingly). Now
+using them emits a deprecation warning.
+
+..
+
+.. bpo: 27863
+.. date: 0265
+.. nonce: pPYHHI
+.. section: Library
+
+Fixed multiple crashes in ElementTree caused by race conditions and wrong
+types.
+
+..
+
+.. bpo: 25996
+.. date: 0264
+.. nonce: L2_giP
+.. section: Library
+
+Added support of file descriptors in os.scandir() on Unix. os.fwalk() is
+sped up by 2 times by using os.scandir().
+
+..
+
+.. bpo: 28699
+.. date: 0263
+.. nonce: wZztZP
+.. section: Library
+
+Fixed a bug in pools in multiprocessing.pool that raising an exception at
+the very first of an iterable may swallow the exception or make the program
+hang. Patch by Davin Potts and Xiang Zhang.
+
+..
+
+.. bpo: 23890
+.. date: 0262
+.. nonce: GCFAAZ
+.. section: Library
+
+unittest.TestCase.assertRaises() now manually breaks a reference cycle to
+not keep objects alive longer than expected.
+
+..
+
+.. bpo: 29901
+.. date: 0261
+.. nonce: QdgMvW
+.. section: Library
+
+The zipapp module now supports general path-like objects, not just
+pathlib.Path.
+
+..
+
+.. bpo: 25803
+.. date: 0260
+.. nonce: CPDR0W
+.. section: Library
+
+Avoid incorrect errors raised by Path.mkdir(exist_ok=True) when the OS gives
+priority to errors such as EACCES over EEXIST.
+
+..
+
+.. bpo: 29861
+.. date: 0259
+.. nonce: t2ZoRK
+.. section: Library
+
+Release references to tasks, their arguments and their results as soon as
+they are finished in multiprocessing.Pool.
+
+..
+
+.. bpo: 19930
+.. date: 0258
+.. nonce: QCjO6A
+.. section: Library
+
+The mode argument of os.makedirs() no longer affects the file permission
+bits of newly created intermediate-level directories.
+
+..
+
+.. bpo: 29884
+.. date: 0257
+.. nonce: kWXR8W
+.. section: Library
+
+faulthandler: Restore the old sigaltstack during teardown. Patch by
+Christophe Zeitouny.
+
+..
+
+.. bpo: 25455
+.. date: 0256
+.. nonce: ZsahHN
+.. section: Library
+
+Fixed crashes in repr of recursive buffered file-like objects.
+
+..
+
+.. bpo: 29800
+.. date: 0255
+.. nonce: d2xASa
+.. section: Library
+
+Fix crashes in partial.__repr__ if the keys of partial.keywords are not
+strings. Patch by Michael Seifert.
+
+..
+
+.. bpo: 8256
+.. date: 0254
+.. nonce: jAwGQH
+.. section: Library
+
+Fixed possible failing or crashing input() if attributes "encoding" or
+"errors" of sys.stdin or sys.stdout are not set or are not strings.
+
+..
+
+.. bpo: 28692
+.. date: 0253
+.. nonce: CDt-Gb
+.. section: Library
+
+Using non-integer value for selecting a plural form in gettext is now
+deprecated.
+
+..
+
+.. bpo: 26121
+.. date: 0252
+.. nonce: LX-pQA
+.. section: Library
+
+Use C library implementation for math functions erf() and erfc().
+
+..
+
+.. bpo: 29619
+.. date: 0251
+.. nonce: WIGVxO
+.. section: Library
+
+os.stat() and os.DirEntry.inode() now convert inode (st_ino) using unsigned
+integers.
+
+..
+
+.. bpo: 28298
+.. date: 0250
+.. nonce: PNOPsT
+.. section: Library
+
+Fix a bug that prevented array 'Q', 'L' and 'I' from accepting big intables
+(objects that have __int__) as elements.
+
+..
+
+.. bpo: 29645
+.. date: 0249
+.. nonce: XCxTHM
+.. section: Library
+
+Speed up importing the webbrowser module. webbrowser.register() is now
+thread-safe.
+
+..
+
+.. bpo: 28231
+.. date: 0248
+.. nonce: MG1X09
+.. section: Library
+
+The zipfile module now accepts path-like objects for external paths.
+
+..
+
+.. bpo: 26915
+.. date: 0247
+.. nonce: qShJZO
+.. section: Library
+
+index() and count() methods of collections.abc.Sequence now check identity
+before checking equality when do comparisons.
+
+..
+
+.. bpo: 28682
+.. date: 0246
+.. nonce: hUxdej
+.. section: Library
+
+Added support for bytes paths in os.fwalk().
+
+..
+
+.. bpo: 29728
+.. date: 0245
+.. nonce: 37jMwb
+.. section: Library
+
+Add new :data:`socket.TCP_NOTSENT_LOWAT` (Linux 3.12) constant. Patch by
+Nathaniel J. Smith.
+
+..
+
+.. bpo: 29623
+.. date: 0244
+.. nonce: D3-NP2
+.. section: Library
+
+Allow use of path-like object as a single argument in ConfigParser.read().
+Patch by David Ellis.
+
+..
+
+.. bpo: 9303
+.. date: 0243
+.. nonce: kDZRSd
+.. section: Library
+
+Migrate sqlite3 module to _v2 API. Patch by Aviv Palivoda.
+
+..
+
+.. bpo: 28963
+.. date: 0242
+.. nonce: tPl8dq
+.. section: Library
+
+Fix out of bound iteration in asyncio.Future.remove_done_callback
+implemented in C.
+
+..
+
+.. bpo: 29704
+.. date: 0241
+.. nonce: WHbx27
+.. section: Library
+
+asyncio.subprocess.SubprocessStreamProtocol no longer closes before all
+pipes are closed.
+
+..
+
+.. bpo: 29271
+.. date: 0240
+.. nonce: y8Vj2v
+.. section: Library
+
+Fix Task.current_task and Task.all_tasks implemented in C to accept None
+argument as their pure Python implementation.
+
+..
+
+.. bpo: 29703
+.. date: 0239
+.. nonce: ZdsPCR
+.. section: Library
+
+Fix asyncio to support instantiation of new event loops in child processes.
+
+..
+
+.. bpo: 29615
+.. date: 0238
+.. nonce: OpFKzg
+.. section: Library
+
+SimpleXMLRPCDispatcher no longer chains KeyError (or any other exception) to
+exception(s) raised in the dispatched methods. Patch by Petr Motejlek.
+
+..
+
+.. bpo: 7769
+.. date: 0237
+.. nonce: xGRJWh
+.. section: Library
+
+Method register_function() of xmlrpc.server.SimpleXMLRPCDispatcher and its
+subclasses can now be used as a decorator.
+
+..
+
+.. bpo: 29376
+.. date: 0236
+.. nonce: rrJhJy
+.. section: Library
+
+Fix assertion error in threading._DummyThread.is_alive().
+
+..
+
+.. bpo: 28624
+.. date: 0235
+.. nonce: 43TJib
+.. section: Library
+
+Add a test that checks that cwd parameter of Popen() accepts PathLike
+objects. Patch by Sayan Chowdhury.
+
+..
+
+.. bpo: 28518
+.. date: 0234
+.. nonce: o-Q2Nw
+.. section: Library
+
+Start a transaction implicitly before a DML statement. Patch by Aviv
+Palivoda.
+
+..
+
+.. bpo: 29742
+.. date: 0233
+.. nonce: 8hqfEO
+.. section: Library
+
+get_extra_info() raises exception if get called on closed ssl transport.
+Patch by Nikolay Kim.
+
+..
+
+.. bpo: 16285
+.. date: 0232
+.. nonce: 4f5gbp
+.. section: Library
+
+urllib.parse.quote is now based on RFC 3986 and hence includes '~' in the
+set of characters that is not quoted by default. Patch by Christian Theune
+and Ratnadeep Debnath.
+
+..
+
+.. bpo: 29532
+.. date: 0231
+.. nonce: YCwVQn
+.. section: Library
+
+Altering a kwarg dictionary passed to functools.partial() no longer affects
+a partial object after creation.
+
+..
+
+.. bpo: 29110
+.. date: 0230
+.. nonce: wmE-_T
+.. section: Library
+
+Fix file object leak in aifc.open() when file is given as a filesystem path
+and is not in valid AIFF format. Patch by Anthony Zhang.
+
+..
+
+.. bpo: 22807
+.. date: 0229
+.. nonce: VmoSkZ
+.. section: Library
+
+Add uuid.SafeUUID and uuid.UUID.is_safe to relay information from the
+platform about whether generated UUIDs are generated with a multiprocessing
+safe method.
+
+..
+
+.. bpo: 29576
+.. date: 0228
+.. nonce: F-b8_5
+.. section: Library
+
+Improve some deprecations in importlib. Some deprecated methods now emit
+DeprecationWarnings and have better descriptive messages.
+
+..
+
+.. bpo: 29534
+.. date: 0227
+.. nonce: Ug3HPU
+.. section: Library
+
+Fixed different behaviour of Decimal.from_float() for _decimal and
+_pydecimal. Thanks Andrew Nester.
+
+..
+
+.. bpo: 10379
+.. date: 0226
+.. nonce: mRlZsT
+.. section: Library
+
+locale.format_string now supports the 'monetary' keyword argument, and
+locale.format is deprecated.
+
+..
+
+.. bpo: 29851
+.. date: 0225
+.. nonce: jqs_5s
+.. section: Library
+
+importlib.reload() now raises ModuleNotFoundError if the module lacks a
+spec.
+
+..
+
+.. bpo: 28556
+.. date: 0224
+.. nonce: p6967e
+.. section: Library
+
+Various updates to typing module: typing.Counter, typing.ChainMap, improved
+ABC caching, etc. Original PRs by Jelle Zijlstra, Ivan Levkivskyi, Manuel
+Krebber, and Łukasz Langa.
+
+..
+
+.. bpo: 29100
+.. date: 0223
+.. nonce: LAAERS
+.. section: Library
+
+Fix datetime.fromtimestamp() regression introduced in Python 3.6.0: check
+minimum and maximum years.
+
+..
+
+.. bpo: 29416
+.. date: 0222
+.. nonce: KJGyI_
+.. section: Library
+
+Prevent infinite loop in pathlib.Path.mkdir
+
+..
+
+.. bpo: 29444
+.. date: 0221
+.. nonce: cEwgmk
+.. section: Library
+
+Fixed out-of-bounds buffer access in the group() method of the match object.
+Based on patch by WGH.
+
+..
+
+.. bpo: 29377
+.. date: 0220
+.. nonce: 4AvSrC
+.. section: Library
+
+Add WrapperDescriptorType, MethodWrapperType, and MethodDescriptorType
+built-in types to types module. Original patch by Manuel Krebber.
+
+..
+
+.. bpo: 29218
+.. date: 0219
+.. nonce: -Qoti0
+.. section: Library
+
+Unused install_misc command is now removed. It has been documented as
+unused since 2000. Patch by Eric N. Vander Weele.
+
+..
+
+.. bpo: 29368
+.. date: 0218
+.. nonce: nTtA_V
+.. section: Library
+
+The extend() method is now called instead of the append() method when
+unpickle collections.deque and other list-like objects. This can speed up
+unpickling to 2 times.
+
+..
+
+.. bpo: 29338
+.. date: 0217
+.. nonce: EpvQJl
+.. section: Library
+
+The help of a builtin or extension class now includes the constructor
+signature if __text_signature__ is provided for the class.
+
+..
+
+.. bpo: 29335
+.. date: 0216
+.. nonce: _KC7IK
+.. section: Library
+
+Fix subprocess.Popen.wait() when the child process has exited to a stopped
+instead of terminated state (ex: when under ptrace).
+
+..
+
+.. bpo: 29290
+.. date: 0215
+.. nonce: XBqptF
+.. section: Library
+
+Fix a regression in argparse that help messages would wrap at non-breaking
+spaces.
+
+..
+
+.. bpo: 28735
+.. date: 0214
+.. nonce: admHLO
+.. section: Library
+
+Fixed the comparison of mock.MagickMock with mock.ANY.
+
+..
+
+.. bpo: 29197
+.. date: 0213
+.. nonce: sZssFZ
+.. section: Library
+
+Removed deprecated function ntpath.splitunc().
+
+..
+
+.. bpo: 29210
+.. date: 0212
+.. nonce: y1UHWf
+.. section: Library
+
+Removed support of deprecated argument "exclude" in tarfile.TarFile.add().
+
+..
+
+.. bpo: 29219
+.. date: 0211
+.. nonce: kxui7t
+.. section: Library
+
+Fixed infinite recursion in the repr of uninitialized ctypes.CDLL instances.
+
+..
+
+.. bpo: 29192
+.. date: 0210
+.. nonce: mY31H8
+.. section: Library
+
+Removed deprecated features in the http.cookies module.
+
+..
+
+.. bpo: 29193
+.. date: 0209
+.. nonce: CgcjEx
+.. section: Library
+
+A format string argument for string.Formatter.format() is now
+positional-only.
+
+..
+
+.. bpo: 29195
+.. date: 0208
+.. nonce: vK5LjU
+.. section: Library
+
+Removed support of deprecated undocumented keyword arguments in methods of
+regular expression objects.
+
+..
+
+.. bpo: 28969
+.. date: 0207
+.. nonce: j3HJYO
+.. section: Library
+
+Fixed race condition in C implementation of functools.lru_cache. KeyError
+could be raised when cached function with full cache was simultaneously
+called from different threads with the same uncached arguments.
+
+..
+
+.. bpo: 20804
+.. date: 0206
+.. nonce: XyZhvi
+.. section: Library
+
+The unittest.mock.sentinel attributes now preserve their identity when they
+are copied or pickled.
+
+..
+
+.. bpo: 29142
+.. date: 0205
+.. nonce: xo6kAv
+.. section: Library
+
+In urllib.request, suffixes in no_proxy environment variable with leading
+dots could match related hostnames again (e.g. .b.c matches a.b.c). Patch by
+Milan Oberkirch.
+
+..
+
+.. bpo: 28961
+.. date: 0204
+.. nonce: Rt93vg
+.. section: Library
+
+Fix unittest.mock._Call helper: don't ignore the name parameter anymore.
+Patch written by Jiajun Huang.
+
+..
+
+.. bpo: 15812
+.. date: 0203
+.. nonce: R1U-Ec
+.. section: Library
+
+inspect.getframeinfo() now correctly shows the first line of a context.
+Patch by Sam Breese.
+
+..
+
+.. bpo: 28985
+.. date: 0202
+.. nonce: TMWJFg
+.. section: Library
+
+Update authorizer constants in sqlite3 module. Patch by Dingyuan Wang.
+
+..
+
+.. bpo: 29079
+.. date: 0201
+.. nonce: g4YLix
+.. section: Library
+
+Prevent infinite loop in pathlib.resolve() on Windows
+
+..
+
+.. bpo: 13051
+.. date: 0200
+.. nonce: YzC1Te
+.. section: Library
+
+Fixed recursion errors in large or resized curses.textpad.Textbox. Based on
+patch by Tycho Andersen.
+
+..
+
+.. bpo: 9770
+.. date: 0199
+.. nonce: WJJnwP
+.. section: Library
+
+curses.ascii predicates now work correctly with negative integers.
+
+..
+
+.. bpo: 28427
+.. date: 0198
+.. nonce: vUd-va
+.. section: Library
+
+old keys should not remove new values from WeakValueDictionary when
+collecting from another thread.
+
+..
+
+.. bpo: 28923
+.. date: 0197
+.. nonce: naVULD
+.. section: Library
+
+Remove editor artifacts from Tix.py.
+
+..
+
+.. bpo: 28871
+.. date: 0196
+.. nonce: cPMXCJ
+.. section: Library
+
+Fixed a crash when deallocate deep ElementTree.
+
+..
+
+.. bpo: 19542
+.. date: 0195
+.. nonce: 5tCkaK
+.. section: Library
+
+Fix bugs in WeakValueDictionary.setdefault() and WeakValueDictionary.pop()
+when a GC collection happens in another thread.
+
+..
+
+.. bpo: 20191
+.. date: 0194
+.. nonce: Q7uZCS
+.. section: Library
+
+Fixed a crash in resource.prlimit() when passing a sequence that doesn't own
+its elements as limits.
+
+..
+
+.. bpo: 16255
+.. date: 0193
+.. nonce: p2YA85
+.. section: Library
+
+subprocess.Popen uses /system/bin/sh on Android as the shell, instead of
+/bin/sh.
+
+..
+
+.. bpo: 28779
+.. date: 0192
+.. nonce: t-mjED
+.. section: Library
+
+multiprocessing.set_forkserver_preload() would crash the forkserver process
+if a preloaded module instantiated some multiprocessing objects such as
+locks.
+
+..
+
+.. bpo: 26937
+.. date: 0191
+.. nonce: c9kgiA
+.. section: Library
+
+The chown() method of the tarfile.TarFile class does not fail now when the
+grp module cannot be imported, as for example on Android platforms.
+
+..
+
+.. bpo: 28847
+.. date: 0190
+.. nonce: GiWd9w
+.. section: Library
+
+dbm.dumb now supports reading read-only files and no longer writes the index
+file when it is not changed. A deprecation warning is now emitted if the
+index file is missed and recreated in the 'r' and 'w' modes (will be an
+error in future Python releases).
+
+..
+
+.. bpo: 27030
+.. date: 0189
+.. nonce: GoGlFH
+.. section: Library
+
+Unknown escapes consisting of ``'\'`` and an ASCII letter in re.sub()
+replacement templates regular expressions now are errors.
+
+..
+
+.. bpo: 28835
+.. date: 0188
+.. nonce: iWBYH7
+.. section: Library
+
+Fix a regression introduced in warnings.catch_warnings(): call
+warnings.showwarning() if it was overridden inside the context manager.
+
+..
+
+.. bpo: 27172
+.. date: 0187
+.. nonce: mVKfLT
+.. section: Library
+
+To assist with upgrades from 2.7, the previously documented deprecation of
+``inspect.getfullargspec()`` has been reversed. This decision may be
+revisited again after the Python 2.7 branch is no longer officially
+supported.
+
+..
+
+.. bpo: 28740
+.. date: 0186
+.. nonce: rY8kz-
+.. section: Library
+
+Add sys.getandroidapilevel(): return the build time API version of Android
+as an integer. Function only available on Android.
+
+..
+
+.. bpo: 26273
+.. date: 0185
+.. nonce: ilNIWN
+.. section: Library
+
+Add new :data:`socket.TCP_CONGESTION` (Linux 2.6.13) and
+:data:`socket.TCP_USER_TIMEOUT` (Linux 2.6.37) constants. Patch written by
+Omar Sandoval.
+
+..
+
+.. bpo: 28752
+.. date: 0184
+.. nonce: Q-4oRE
+.. section: Library
+
+Restored the __reduce__() methods of datetime objects.
+
+..
+
+.. bpo: 28727
+.. date: 0183
+.. nonce: ubZP_b
+.. section: Library
+
+Regular expression patterns, _sre.SRE_Pattern objects created by
+re.compile(), become comparable (only x==y and x!=y operators). This change
+should fix the issue #18383: don't duplicate warning filters when the
+warnings module is reloaded (thing usually only done in unit tests).
+
+..
+
+.. bpo: 20572
+.. date: 0182
+.. nonce: NCRmvz
+.. section: Library
+
+Remove the subprocess.Popen.wait endtime parameter. It was deprecated in
+3.4 and undocumented prior to that.
+
+..
+
+.. bpo: 25659
+.. date: 0181
+.. nonce: lE2IlT
+.. section: Library
+
+In ctypes, prevent a crash calling the from_buffer() and from_buffer_copy()
+methods on abstract classes like Array.
+
+..
+
+.. bpo: 28548
+.. date: 0180
+.. nonce: IeNrnG
+.. section: Library
+
+In the "http.server" module, parse the protocol version if possible, to
+avoid using HTTP 0.9 in some error responses.
+
+..
+
+.. bpo: 19717
+.. date: 0179
+.. nonce: HXCAIz
+.. section: Library
+
+Makes Path.resolve() succeed on paths that do not exist. Patch by Vajrasky
+Kok
+
+..
+
+.. bpo: 28563
+.. date: 0178
+.. nonce: iweEiw
+.. section: Library
+
+Fixed possible DoS and arbitrary code execution when handle plural form
+selections in the gettext module. The expression parser now supports exact
+syntax supported by GNU gettext.
+
+..
+
+.. bpo: 28387
+.. date: 0177
+.. nonce: 1clJu7
+.. section: Library
+
+Fixed possible crash in _io.TextIOWrapper deallocator when the garbage
+collector is invoked in other thread. Based on patch by Sebastian Cufre.
+
+..
+
+.. bpo: 27517
+.. date: 0176
+.. nonce: 1CYM8A
+.. section: Library
+
+LZMA compressor and decompressor no longer raise exceptions if given empty
+data twice. Patch by Benjamin Fogle.
+
+..
+
+.. bpo: 28549
+.. date: 0175
+.. nonce: ShnM2y
+.. section: Library
+
+Fixed segfault in curses's addch() with ncurses6.
+
+..
+
+.. bpo: 28449
+.. date: 0174
+.. nonce: 5JK6ES
+.. section: Library
+
+tarfile.open() with mode "r" or "r:" now tries to open a tar file with
+compression before trying to open it without compression. Otherwise it had
+50% chance failed with ignore_zeros=True.
+
+..
+
+.. bpo: 23262
+.. date: 0173
+.. nonce: 6EVB7N
+.. section: Library
+
+The webbrowser module now supports Firefox 36+ and derived browsers. Based
+on patch by Oleg Broytman.
+
+..
+
+.. bpo: 24241
+.. date: 0172
+.. nonce: y7N12p
+.. section: Library
+
+The webbrowser in an X environment now prefers using the default browser
+directly. Also, the webbrowser register() function now has a documented
+'preferred' argument, to specify browsers to be returned by get() with no
+arguments. Patch by David Steele
+
+..
+
+.. bpo: 27939
+.. date: 0171
+.. nonce: mTfADV
+.. section: Library
+
+Fixed bugs in tkinter.ttk.LabeledScale and tkinter.Scale caused by
+representing the scale as float value internally in Tk. tkinter.IntVar now
+works if float value is set to underlying Tk variable.
+
+..
+
+.. bpo: 28255
+.. date: 0170
+.. nonce: G3iOPm
+.. section: Library
+
+calendar.TextCalendar.prweek() no longer prints a space after a weeks's
+calendar. calendar.TextCalendar.pryear() no longer prints redundant newline
+after a year's calendar. Based on patch by Xiang Zhang.
+
+..
+
+.. bpo: 28255
+.. date: 0169
+.. nonce: fHNZu0
+.. section: Library
+
+calendar.TextCalendar.prmonth() no longer prints a space at the start of new
+line after printing a month's calendar. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 20491
+.. date: 0168
+.. nonce: ObgnQ2
+.. section: Library
+
+The textwrap.TextWrapper class now honors non-breaking spaces. Based on
+patch by Kaarle Ritvanen.
+
+..
+
+.. bpo: 28353
+.. date: 0167
+.. nonce: sKGbLL
+.. section: Library
+
+os.fwalk() no longer fails on broken links.
+
+..
+
+.. bpo: 28430
+.. date: 0166
+.. nonce: 4MiEYT
+.. section: Library
+
+Fix iterator of C implemented asyncio.Future doesn't accept non-None value
+is passed to it.send(val).
+
+..
+
+.. bpo: 27025
+.. date: 0165
+.. nonce: foAViS
+.. section: Library
+
+Generated names for Tkinter widgets now start by the "!" prefix for
+readability.
+
+..
+
+.. bpo: 25464
+.. date: 0164
+.. nonce: HDUTCu
+.. section: Library
+
+Fixed HList.header_exists() in tkinter.tix module by addin a workaround to
+Tix library bug.
+
+..
+
+.. bpo: 28488
+.. date: 0163
+.. nonce: TgO112
+.. section: Library
+
+shutil.make_archive() no longer adds entry "./" to ZIP archive.
+
+..
+
+.. bpo: 25953
+.. date: 0162
+.. nonce: EKKJAQ
+.. section: Library
+
+re.sub() now raises an error for invalid numerical group reference in
+replacement template even if the pattern is not found in the string. Error
+message for invalid group reference now includes the group index and the
+position of the reference. Based on patch by SilentGhost.
+
+..
+
+.. bpo: 28469
+.. date: 0161
+.. nonce: QZW1Np
+.. section: Library
+
+timeit now uses the sequence 1, 2, 5, 10, 20, 50,... instead of 1, 10,
+100,... for autoranging.
+
+..
+
+.. bpo: 28115
+.. date: 0160
+.. nonce: 4FIjIE
+.. section: Library
+
+Command-line interface of the zipfile module now uses argparse. Added
+support of long options.
+
+..
+
+.. bpo: 18219
+.. date: 0159
+.. nonce: 1ANQN1
+.. section: Library
+
+Optimize csv.DictWriter for large number of columns. Patch by Mariatta
+Wijaya.
+
+..
+
+.. bpo: 28448
+.. date: 0158
+.. nonce: 5bduWe
+.. section: Library
+
+Fix C implemented asyncio.Future didn't work on Windows.
+
+..
+
+.. bpo: 23214
+.. date: 0157
+.. nonce: -4Q5Z7
+.. section: Library
+
+In the "io" module, the argument to BufferedReader and BytesIO's read1()
+methods is now optional and can be -1, matching the BufferedIOBase
+specification.
+
+..
+
+.. bpo: 28480
+.. date: 0156
+.. nonce: 9lHw6m
+.. section: Library
+
+Fix error building socket module when multithreading is disabled.
+
+..
+
+.. bpo: 28240
+.. date: 0155
+.. nonce: hqzQvS
+.. section: Library
+
+timeit: remove ``-c/--clock`` and ``-t/--time`` command line options which
+were deprecated since Python 3.3.
+
+..
+
+.. bpo: 28240
+.. date: 0154
+.. nonce: IwQMgd
+.. section: Library
+
+timeit now repeats the benchmarks 5 times instead of only 3 to make
+benchmarks more reliable.
+
+..
+
+.. bpo: 28240
+.. date: 0153
+.. nonce: cXljq-
+.. section: Library
+
+timeit autorange now uses a single loop iteration if the benchmark takes
+less than 10 seconds, instead of 10 iterations. "python3 -m timeit -s
+'import time' 'time.sleep(1)'" now takes 4 seconds instead of 40 seconds.
+
+..
+
+.. bpo: 0
+.. date: 0152
+.. nonce: 5Y0ngw
+.. section: Library
+
+Distutils.sdist now looks for README and setup.py files with case
+sensitivity. This behavior matches that found in Setuptools 6.0 and later.
+See `setuptools 100 <https://github.com/pypa/setuptools/issues/100>`_ for
+rationale.
+
+..
+
+.. bpo: 24452
+.. date: 0151
+.. nonce: pVsjt0
+.. section: Library
+
+Make webbrowser support Chrome on Mac OS X. Patch by Ned Batchelder.
+
+..
+
+.. bpo: 20766
+.. date: 0150
+.. nonce: 4kvCzx
+.. section: Library
+
+Fix references leaked by pdb in the handling of SIGINT handlers.
+
+..
+
+.. bpo: 27998
+.. date: 0149
+.. nonce: CPhy4H
+.. section: Library
+
+Fixed bytes path support in os.scandir() on Windows. Patch by Eryk Sun.
+
+..
+
+.. bpo: 28317
+.. date: 0148
+.. nonce: LgHleA
+.. section: Library
+
+The disassembler now decodes FORMAT_VALUE argument.
+
+..
+
+.. bpo: 28380
+.. date: 0147
+.. nonce: jKPMzH
+.. section: Library
+
+unittest.mock Mock autospec functions now properly support assert_called,
+assert_not_called, and assert_called_once.
+
+..
+
+.. bpo: 28229
+.. date: 0146
+.. nonce: BKAxcS
+.. section: Library
+
+lzma module now supports pathlib.
+
+..
+
+.. bpo: 28321
+.. date: 0145
+.. nonce: bQ-IIX
+.. section: Library
+
+Fixed writing non-BMP characters with binary format in plistlib.
+
+..
+
+.. bpo: 28225
+.. date: 0144
+.. nonce: 6N28nu
+.. section: Library
+
+bz2 module now supports pathlib. Initial patch by Ethan Furman.
+
+..
+
+.. bpo: 28227
+.. date: 0143
+.. nonce: 7lUz8i
+.. section: Library
+
+gzip now supports pathlib. Patch by Ethan Furman.
+
+..
+
+.. bpo: 28332
+.. date: 0142
+.. nonce: Ed8fNk
+.. section: Library
+
+Deprecated silent truncations in socket.htons and socket.ntohs. Original
+patch by Oren Milman.
+
+..
+
+.. bpo: 27358
+.. date: 0141
+.. nonce: t288Iv
+.. section: Library
+
+Optimized merging var-keyword arguments and improved error message when
+passing a non-mapping as a var-keyword argument.
+
+..
+
+.. bpo: 28257
+.. date: 0140
+.. nonce: SVD_IH
+.. section: Library
+
+Improved error message when passing a non-iterable as a var-positional
+argument. Added opcode BUILD_TUPLE_UNPACK_WITH_CALL.
+
+..
+
+.. bpo: 28322
+.. date: 0139
+.. nonce: l9hzap
+.. section: Library
+
+Fixed possible crashes when unpickle itertools objects from incorrect pickle
+data. Based on patch by John Leitch.
+
+..
+
+.. bpo: 28228
+.. date: 0138
+.. nonce: 1qBwdM
+.. section: Library
+
+imghdr now supports pathlib.
+
+..
+
+.. bpo: 28226
+.. date: 0137
+.. nonce: nMXiwU
+.. section: Library
+
+compileall now supports pathlib.
+
+..
+
+.. bpo: 28314
+.. date: 0136
+.. nonce: N7YrkN
+.. section: Library
+
+Fix function declaration (C flags) for the getiterator() method of
+xml.etree.ElementTree.Element.
+
+..
+
+.. bpo: 28148
+.. date: 0135
+.. nonce: Flzndx
+.. section: Library
+
+Stop using localtime() and gmtime() in the time module.
+Introduced platform independent _PyTime_localtime API that is similar to
+POSIX localtime_r, but available on all platforms. Patch by Ed Schouten.
+
+..
+
+.. bpo: 28253
+.. date: 0134
+.. nonce: aLfmhe
+.. section: Library
+
+Fixed calendar functions for extreme months: 0001-01 and 9999-12.
+Methods itermonthdays() and itermonthdays2() are reimplemented so that they
+don't call itermonthdates() which can cause datetime.date under/overflow.
+
+..
+
+.. bpo: 28275
+.. date: 0133
+.. nonce: EhWIsz
+.. section: Library
+
+Fixed possible use after free in the decompress() methods of the
+LZMADecompressor and BZ2Decompressor classes. Original patch by John Leitch.
+
+..
+
+.. bpo: 27897
+.. date: 0132
+.. nonce: I0Ppmx
+.. section: Library
+
+Fixed possible crash in sqlite3.Connection.create_collation() if pass
+invalid string-like object as a name. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 18844
+.. date: 0131
+.. nonce: fQsEdn
+.. section: Library
+
+random.choices() now has k as a keyword-only argument to improve the
+readability of common cases and come into line with the signature used in
+other languages.
+
+..
+
+.. bpo: 18893
+.. date: 0130
+.. nonce: osiX5c
+.. section: Library
+
+Fix invalid exception handling in Lib/ctypes/macholib/dyld.py. Patch by
+Madison May.
+
+..
+
+.. bpo: 27611
+.. date: 0129
+.. nonce: A_ArH_
+.. section: Library
+
+Fixed support of default root window in the tkinter.tix module. Added the
+master parameter in the DisplayStyle constructor.
+
+..
+
+.. bpo: 27348
+.. date: 0128
+.. nonce: tDx7Vw
+.. section: Library
+
+In the traceback module, restore the formatting of exception messages like
+"Exception: None". This fixes a regression introduced in 3.5a2.
+
+..
+
+.. bpo: 25651
+.. date: 0127
+.. nonce: 3UhyPo
+.. section: Library
+
+Allow falsy values to be used for msg parameter of subTest().
+
+..
+
+.. bpo: 27778
+.. date: 0126
+.. nonce: Yyo1aP
+.. section: Library
+
+Fix a memory leak in os.getrandom() when the getrandom() is interrupted by a
+signal and a signal handler raises a Python exception.
+
+..
+
+.. bpo: 28200
+.. date: 0125
+.. nonce: 4IEbr7
+.. section: Library
+
+Fix memory leak on Windows in the os module (fix path_converter() function).
+
+..
+
+.. bpo: 25400
+.. date: 0124
+.. nonce: d9Qn0E
+.. section: Library
+
+RobotFileParser now correctly returns default values for crawl_delay and
+request_rate. Initial patch by Peter Wirtz.
+
+..
+
+.. bpo: 27932
+.. date: 0123
+.. nonce: mtgl-6
+.. section: Library
+
+Prevent memory leak in win32_ver().
+
+..
+
+.. bpo: 0
+.. date: 0122
+.. nonce: iPpjqX
+.. section: Library
+
+Fix UnboundLocalError in socket._sendfile_use_sendfile.
+
+..
+
+.. bpo: 28075
+.. date: 0121
+.. nonce: aLiUs9
+.. section: Library
+
+Check for ERROR_ACCESS_DENIED in Windows implementation of os.stat(). Patch
+by Eryk Sun.
+
+..
+
+.. bpo: 22493
+.. date: 0120
+.. nonce: Mv_hZf
+.. section: Library
+
+Warning message emitted by using inline flags in the middle of regular
+expression now contains a (truncated) regex pattern. Patch by Tim Graham.
+
+..
+
+.. bpo: 25270
+.. date: 0119
+.. nonce: jrZruM
+.. section: Library
+
+Prevent codecs.escape_encode() from raising SystemError when an empty
+bytestring is passed.
+
+..
+
+.. bpo: 28181
+.. date: 0118
+.. nonce: NGc4Yv
+.. section: Library
+
+Get antigravity over HTTPS. Patch by Kaartic Sivaraam.
+
+..
+
+.. bpo: 25895
+.. date: 0117
+.. nonce: j92qoQ
+.. section: Library
+
+Enable WebSocket URL schemes in urllib.parse.urljoin. Patch by Gergely Imreh
+and Markus Holtermann.
+
+..
+
+.. bpo: 28114
+.. date: 0116
+.. nonce: gmFXsA
+.. section: Library
+
+Fix a crash in parse_envlist() when env contains byte strings. Patch by Eryk
+Sun.
+
+..
+
+.. bpo: 27599
+.. date: 0115
+.. nonce: itvm8T
+.. section: Library
+
+Fixed buffer overrun in binascii.b2a_qp() and binascii.a2b_qp().
+
+..
+
+.. bpo: 27906
+.. date: 0114
+.. nonce: TBBXrv
+.. section: Library
+
+Fix socket accept exhaustion during high TCP traffic. Patch by Kevin Conway.
+
+..
+
+.. bpo: 28174
+.. date: 0113
+.. nonce: CV1UdI
+.. section: Library
+
+Handle when SO_REUSEPORT isn't properly supported. Patch by Seth Michael
+Larson.
+
+..
+
+.. bpo: 26654
+.. date: 0112
+.. nonce: XtzTE9
+.. section: Library
+
+Inspect functools.partial in asyncio.Handle.__repr__. Patch by iceboy.
+
+..
+
+.. bpo: 26909
+.. date: 0111
+.. nonce: ASiakT
+.. section: Library
+
+Fix slow pipes IO in asyncio. Patch by INADA Naoki.
+
+..
+
+.. bpo: 28176
+.. date: 0110
+.. nonce: sU8R6L
+.. section: Library
+
+Fix callbacks race in asyncio.SelectorLoop.sock_connect.
+
+..
+
+.. bpo: 27759
+.. date: 0109
+.. nonce: qpMDGq
+.. section: Library
+
+Fix selectors incorrectly retain invalid file descriptors. Patch by Mark
+Williams.
+
+..
+
+.. bpo: 28325
+.. date: 0108
+.. nonce: wAHmnK
+.. section: Library
+
+Remove vestigial MacOS 9 macurl2path module and its tests.
+
+..
+
+.. bpo: 28368
+.. date: 0107
+.. nonce: n594X4
+.. section: Library
+
+Refuse monitoring processes if the child watcher has no loop attached. Patch
+by Vincent Michel.
+
+..
+
+.. bpo: 28369
+.. date: 0106
+.. nonce: 8DTANe
+.. section: Library
+
+Raise RuntimeError when transport's FD is used with add_reader, add_writer,
+etc.
+
+..
+
+.. bpo: 28370
+.. date: 0105
+.. nonce: 18jBuZ
+.. section: Library
+
+Speedup asyncio.StreamReader.readexactly. Patch by Коренберг Марк.
+
+..
+
+.. bpo: 28371
+.. date: 0104
+.. nonce: U9Zqdk
+.. section: Library
+
+Deprecate passing asyncio.Handles to run_in_executor.
+
+..
+
+.. bpo: 28372
+.. date: 0103
+.. nonce: njcIPk
+.. section: Library
+
+Fix asyncio to support formatting of non-python coroutines.
+
+..
+
+.. bpo: 28399
+.. date: 0102
+.. nonce: QKIqRX
+.. section: Library
+
+Remove UNIX socket from FS before binding. Patch by Коренберг Марк.
+
+..
+
+.. bpo: 27972
+.. date: 0101
+.. nonce: ZK-GFm
+.. section: Library
+
+Prohibit Tasks to await on themselves.
+
+..
+
+.. bpo: 24142
+.. date: 0100
+.. nonce: IrZnFs
+.. section: Library
+
+Reading a corrupt config file left configparser in an invalid state.
+Original patch by Florian Höch.
+
+..
+
+.. bpo: 29581
+.. date: 0099
+.. nonce: gHCrxP
+.. section: Library
+
+ABCMeta.__new__ now accepts ``**kwargs``, allowing abstract base classes to
+use keyword parameters in __init_subclass__. Patch by Nate Soares.
+
+..
+
+.. bpo: 25532
+.. date: 0098
+.. nonce: ey4Yez
+.. section: Library
+
+inspect.unwrap() will now only try to unwrap an object
+sys.getrecursionlimit() times, to protect against objects which create a new
+object on every attribute access.
+
+..
+
+.. bpo: 30177
+.. date: 0097
+.. nonce: JGIJNL
+.. section: Library
+
+path.resolve(strict=False) no longer cuts the path after the first element
+not present in the filesystem. Patch by Antoine Pietri.
+
+..
+
+.. bpo: 31294
+.. date: 2017-09-07-20-49-09
+.. nonce: WgI18w
+.. section: Documentation
+
+Fix incomplete code snippet in the ZeroMQSocketListener and
+ZeroMQSocketHandler examples and adapt them to Python 3.
+
+..
+
+.. bpo: 21649
+.. date: 2017-09-06-10-11-57
+.. nonce: EUvqA9
+.. section: Documentation
+
+Add RFC 7525 and Mozilla server side TLS links to SSL documentation.
+
+..
+
+.. bpo: 31128
+.. date: 2017-08-31
+.. nonce: uoa3cr
+.. section: Documentation
+
+Allow the pydoc server to bind to arbitrary hostnames.
+
+..
+
+.. bpo: 30803
+.. date: 2017-07-29-14-55-50
+.. nonce: 6hutqQ
+.. section: Documentation
+
+Clarify doc on truth value testing. Original patch by Peter Thomassen.
+
+..
+
+.. bpo: 30176
+.. date: 0060
+.. nonce: VivmCg
+.. section: Documentation
+
+Add missing attribute related constants in curses documentation.
+
+..
+
+.. bpo: 30052
+.. date: 0059
+.. nonce: TpmpaF
+.. section: Documentation
+
+the link targets for :func:`bytes` and :func:`bytearray` are now their
+respective type definitions, rather than the corresponding builtin function
+entries. Use :ref:`bytes <func-bytes>` and :ref:`bytearray <func-bytearray>`
+to reference the latter.
+In order to ensure this and future cross-reference updates are applied
+automatically, the daily documentation builds now disable the default output
+caching features in Sphinx.
+
+..
+
+.. bpo: 26985
+.. date: 0058
+.. nonce: NB5_9S
+.. section: Documentation
+
+Add missing info of code object in inspect documentation.
+
+..
+
+.. bpo: 19824
+.. date: 0057
+.. nonce: We9an6
+.. section: Documentation
+
+Improve the documentation for, and links to, template strings by emphasizing
+their utility for internationalization, and by clarifying some usage
+constraints. (See also: bpo-20314, bpo-12518)
+
+..
+
+.. bpo: 28929
+.. date: 0056
+.. nonce: Md7kb0
+.. section: Documentation
+
+Link the documentation to its source file on GitHub.
+
+..
+
+.. bpo: 25008
+.. date: 0055
+.. nonce: CeIzyU
+.. section: Documentation
+
+Document smtpd.py as effectively deprecated and add a pointer to aiosmtpd, a
+third-party asyncio-based replacement.
+
+..
+
+.. bpo: 26355
+.. date: 0054
+.. nonce: SDq_8Y
+.. section: Documentation
+
+Add canonical header link on each page to corresponding major version of the
+documentation. Patch by Matthias Bussonnier.
+
+..
+
+.. bpo: 29349
+.. date: 0053
+.. nonce: PjSo-t
+.. section: Documentation
+
+Fix Python 2 syntax in code for building the documentation.
+
+..
+
+.. bpo: 23722
+.. date: 0052
+.. nonce: nFjY3C
+.. section: Documentation
+
+The data model reference and the porting section in the 3.6 What's New guide
+now cover the additional ``__classcell__`` handling needed for custom
+metaclasses to fully support :pep:`487` and zero-argument ``super()``.
+
+..
+
+.. bpo: 28513
+.. date: 0051
+.. nonce: L3joAz
+.. section: Documentation
+
+Documented command-line interface of zipfile.
+
+..
+
+.. bpo: 29639
+.. date: 2017-09-08-15-59-07
+.. nonce: yIZecp
+.. section: Tests
+
+test.support.HOST is now "localhost", a new HOSTv4 constant has been added
+for your ``127.0.0.1`` needs, similar to the existing HOSTv6 constant.
+
+..
+
+.. bpo: 31320
+.. date: 2017-09-05-14-23-35
+.. nonce: JRDHx7
+.. section: Tests
+
+Silence traceback in test_ssl
+
+..
+
+.. bpo: 31346
+.. date: 2017-09-04-16-21-18
+.. nonce: xni1VR
+.. section: Tests
+
+Prefer PROTOCOL_TLS_CLIENT and PROTOCOL_TLS_SERVER protocols for SSLContext.
+
+..
+
+.. bpo: 25674
+.. date: 2017-09-04-13-03-55
+.. nonce: whVTXh
+.. section: Tests
+
+Remove sha256.tbs-internet.com ssl test
+
+..
+
+.. bpo: 30715
+.. date: 2017-07-25-15-27-44
+.. nonce: Sp7bTF
+.. section: Tests
+
+Address ALPN callback changes for OpenSSL 1.1.0f. The latest version behaves
+like OpenSSL 1.0.2 and no longer aborts handshake.
+
+..
+
+.. bpo: 30822
+.. date: 2017-07-20-14-29-54
+.. nonce: X0wREo
+.. section: Tests
+
+regrtest: Exclude tzdata from regrtest --all. When running the test suite
+using --use=all / -u all, exclude tzdata since it makes test_datetime too
+slow (15-20 min on some buildbots) which then times out on some buildbots.
+Fix also regrtest command line parser to allow passing -u extralargefile to
+run test_zipfile64.
+
+..
+
+.. bpo: 30695
+.. date: 2017-06-30-11-20-20
+.. nonce: lo7FQX
+.. section: Tests
+
+Add the `set_nomemory(start, stop)` and `remove_mem_hooks()` functions to
+the _testcapi module.
+
+..
+
+.. bpo: 30357
+.. date: 0012
+.. nonce: n4CPEa
+.. section: Tests
+
+test_thread: setUp() now uses support.threading_setup() and
+support.threading_cleanup() to wait until threads complete to avoid random
+side effects on following tests. Initial patch written by Grzegorz Grzywacz.
+
+..
+
+.. bpo: 30197
+.. date: 0011
+.. nonce: c5wRfu
+.. section: Tests
+
+Enhanced functions swap_attr() and swap_item() in the test.support module.
+They now work when delete replaced attribute or item inside the with
+statement. The old value of the attribute or item (or None if it doesn't
+exist) now will be assigned to the target of the "as" clause, if there is
+one.
+
+..
+
+.. bpo: 24932
+.. date: 0010
+.. nonce: XLTzvR
+.. section: Tests
+
+Use proper command line parsing in _testembed
+
+..
+
+.. bpo: 28950
+.. date: 0009
+.. nonce: 1W8Glo
+.. section: Tests
+
+Disallow -j0 to be combined with -T/-l in regrtest command line arguments.
+
+..
+
+.. bpo: 28683
+.. date: 0008
+.. nonce: Fp-Hdq
+.. section: Tests
+
+Fix the tests that bind() a unix socket and raise PermissionError on Android
+for a non-root user.
+
+..
+
+.. bpo: 26936
+.. date: 0007
+.. nonce: XSZSVS
+.. section: Tests
+
+Fix the test_socket failures on Android - getservbyname(), getservbyport()
+and getaddrinfo() are broken on some Android API levels.
+
+..
+
+.. bpo: 28666
+.. date: 0006
+.. nonce: RtTk-4
+.. section: Tests
+
+Now test.support.rmtree is able to remove unwritable or unreadable
+directories.
+
+..
+
+.. bpo: 23839
+.. date: 0005
+.. nonce: zsT_L9
+.. section: Tests
+
+Various caches now are cleared before running every test file.
+
+..
+
+.. bpo: 26944
+.. date: 0004
+.. nonce: ChZ_BO
+.. section: Tests
+
+Fix test_posix for Android where 'id -G' is entirely wrong or missing the
+effective gid.
+
+..
+
+.. bpo: 28409
+.. date: 0003
+.. nonce: Q2IlxJ
+.. section: Tests
+
+regrtest: fix the parser of command line arguments.
+
+..
+
+.. bpo: 28217
+.. date: 0002
+.. nonce: Y37OKV
+.. section: Tests
+
+Adds _testconsole module to test console input.
+
+..
+
+.. bpo: 26939
+.. date: 0001
+.. nonce: 7j_W5R
+.. section: Tests
+
+Add the support.setswitchinterval() function to fix test_functools hanging
+on the Android armv7 qemu emulator.
+
+..
+
+.. bpo: 31354
+.. date: 2017-09-08-11-48-11
+.. nonce: 4f-VJK
+.. section: Build
+
+Allow --with-lto to be used on all builds, not just `make profile-opt`.
+
+..
+
+.. bpo: 31370
+.. date: 2017-09-06-23-14-08
+.. nonce: -j4kN4
+.. section: Build
+
+Remove support for building --without-threads.
+This option is not really useful anymore in the 21st century. Removing lots
+of conditional paths allows us to simplify the code base, including in
+difficult to maintain low-level internal code.
+
+..
+
+.. bpo: 31341
+.. date: 2017-09-04-14-43-46
+.. nonce: XLuZFk
+.. section: Build
+
+Per :pep:`11`, support for the IRIX operating system was removed.
+
+..
+
+.. bpo: 30854
+.. date: 2017-07-05-16-54-59
+.. nonce: sPADRI
+.. section: Build
+
+Fix compile error when compiling --without-threads. Patch by Masayuki
+Yamamoto.
+
+..
+
+.. bpo: 30687
+.. date: 0050
+.. nonce: 8mqHnu
+.. section: Build
+
+Locate msbuild.exe on Windows when building rather than vcvarsall.bat
+
+..
+
+.. bpo: 20210
+.. date: 0049
+.. nonce: MN_n-r
+.. section: Build
+
+Support the *disabled* marker in Setup files. Extension modules listed after
+this marker are not built at all, neither by the Makefile nor by setup.py.
+
+..
+
+.. bpo: 29941
+.. date: 0048
+.. nonce: ylh45A
+.. section: Build
+
+Add ``--with-assertions`` configure flag to explicitly enable C ``assert()``
+checks. Defaults to off. ``--with-pydebug`` implies ``--with-assertions``.
+
+..
+
+.. bpo: 28787
+.. date: 0047
+.. nonce: vhH_6a
+.. section: Build
+
+Fix out-of-tree builds of Python when configured with ``--with--dtrace``.
+
+..
+
+.. bpo: 29243
+.. date: 0046
+.. nonce: WDK4hT
+.. section: Build
+
+Prevent unnecessary rebuilding of Python during ``make test``, ``make
+install`` and some other make targets when configured with
+``--enable-optimizations``.
+
+..
+
+.. bpo: 23404
+.. date: 0045
+.. nonce: PdYVWg
+.. section: Build
+
+Don't regenerate generated files based on file modification time anymore:
+the action is now explicit. Replace ``make touch`` with ``make regen-all``.
+
+..
+
+.. bpo: 29643
+.. date: 0044
+.. nonce: 4WLIJQ
+.. section: Build
+
+Fix ``--enable-optimization`` didn't work.
+
+..
+
+.. bpo: 27593
+.. date: 0043
+.. nonce: v87xEr
+.. section: Build
+
+sys.version and the platform module python_build(), python_branch(), and
+python_revision() functions now use git information rather than hg when
+building from a repo.
+
+..
+
+.. bpo: 29572
+.. date: 0042
+.. nonce: iZ1XKK
+.. section: Build
+
+Update Windows build and OS X installers to use OpenSSL 1.0.2k.
+
+..
+
+.. bpo: 27659
+.. date: 0041
+.. nonce: i8UzRC
+.. section: Build
+
+Prohibit implicit C function declarations: use
+``-Werror=implicit-function-declaration`` when possible (GCC and Clang,
+but it depends on the compiler version). Patch written by Chi Hsuan Yen.
+
+..
+
+.. bpo: 29384
+.. date: 0040
+.. nonce: v3IqBE
+.. section: Build
+
+Remove old Be OS helper scripts.
+
+..
+
+.. bpo: 26851
+.. date: 0039
+.. nonce: R5243g
+.. section: Build
+
+Set Android compilation and link flags.
+
+..
+
+.. bpo: 28768
+.. date: 0038
+.. nonce: b9_a6E
+.. section: Build
+
+Fix implicit declaration of function _setmode. Patch by Masayuki Yamamoto
+
+..
+
+.. bpo: 29080
+.. date: 0037
+.. nonce: b3qLQT
+.. section: Build
+
+Removes hard dependency on hg.exe from PCBuild/build.bat
+
+..
+
+.. bpo: 23903
+.. date: 0036
+.. nonce: JXJ889
+.. section: Build
+
+Added missed names to PC/python3.def.
+
+..
+
+.. bpo: 28762
+.. date: 0035
+.. nonce: Ru0YN_
+.. section: Build
+
+lockf() is available on Android API level 24, but the F_LOCK macro is not
+defined in android-ndk-r13.
+
+..
+
+.. bpo: 28538
+.. date: 0034
+.. nonce: FqtN7v
+.. section: Build
+
+Fix the compilation error that occurs because if_nameindex() is available on
+Android API level 24, but the if_nameindex structure is not defined.
+
+..
+
+.. bpo: 20211
+.. date: 0033
+.. nonce: gpNptI
+.. section: Build
+
+Do not add the directory for installing C header files and the directory for
+installing object code libraries to the cross compilation search paths.
+Original patch by Thomas Petazzoni.
+
+..
+
+.. bpo: 28849
+.. date: 0032
+.. nonce: AzRRF5
+.. section: Build
+
+Do not define sys.implementation._multiarch on Android.
+
+..
+
+.. bpo: 10656
+.. date: 0031
+.. nonce: pR8FFU
+.. section: Build
+
+Fix out-of-tree building on AIX. Patch by Tristan Carel and Michael
+Haubenwallner.
+
+..
+
+.. bpo: 26359
+.. date: 0030
+.. nonce: CLz6qy
+.. section: Build
+
+Rename --with-optimiations to --enable-optimizations.
+
+..
+
+.. bpo: 28444
+.. date: 0029
+.. nonce: zkc9nT
+.. section: Build
+
+Fix missing extensions modules when cross compiling.
+
+..
+
+.. bpo: 28208
+.. date: 0028
+.. nonce: DtoP1i
+.. section: Build
+
+Update Windows build and OS X installers to use SQLite 3.14.2.
+
+..
+
+.. bpo: 28248
+.. date: 0027
+.. nonce: KY_-en
+.. section: Build
+
+Update Windows build and OS X installers to use OpenSSL 1.0.2j.
+
+..
+
+.. bpo: 21124
+.. date: 0026
+.. nonce: 1bbArU
+.. section: Build
+
+Fix building the _struct module on Cygwin by passing ``NULL`` instead of
+``&PyType_Type`` to PyVarObject_HEAD_INIT. Patch by Masayuki Yamamoto.
+
+..
+
+.. bpo: 13756
+.. date: 0025
+.. nonce: sslhpC
+.. section: Build
+
+Fix building extensions modules on Cygwin. Patch by Roumen Petrov, based on
+original patch by Jason Tishler.
+
+..
+
+.. bpo: 21085
+.. date: 0024
+.. nonce: 2VvyUF
+.. section: Build
+
+Add configure check for siginfo_t.si_band, which Cygwin does not provide.
+Patch by Masayuki Yamamoto with review and rebase by Erik Bray.
+
+..
+
+.. bpo: 28258
+.. date: 0023
+.. nonce: iKtAHd
+.. section: Build
+
+Fixed build with Estonian locale (python-config and distclean targets in
+Makefile). Patch by Arfrever Frehtes Taifersar Arahesis.
+
+..
+
+.. bpo: 26661
+.. date: 0022
+.. nonce: Z_HNbs
+.. section: Build
+
+setup.py now detects system libffi with multiarch wrapper.
+
+..
+
+.. bpo: 27979
+.. date: 0021
+.. nonce: fR0KgM
+.. section: Build
+
+A full copy of libffi is no longer bundled for use when building _ctypes on
+non-OSX UNIX platforms. An installed copy of libffi is now required when
+building _ctypes on such platforms.
+
+..
+
+.. bpo: 15819
+.. date: 0020
+.. nonce: QVDr3E
+.. section: Build
+
+Remove redundant include search directory option for building outside the
+source tree.
+
+..
+
+.. bpo: 28676
+.. date: 0019
+.. nonce: Wxf6Ds
+.. section: Build
+
+Prevent missing 'getentropy' declaration warning on macOS. Patch by Gareth
+Rees.
+
+..
+
+.. bpo: 31392
+.. date: 2017-09-07-20-09-04
+.. nonce: h92bWF
+.. section: Windows
+
+Update Windows build to use OpenSSL 1.1.0f
+
+..
+
+.. bpo: 30389
+.. date: 2017-09-06-17-14-54
+.. nonce: 9Dizrx
+.. section: Windows
+
+Adds detection of Visual Studio 2017 to distutils on Windows.
+
+..
+
+.. bpo: 31358
+.. date: 2017-09-05-19-46-52
+.. nonce: n1Fjxc
+.. section: Windows
+
+zlib is no longer bundled in the CPython source, instead it is downloaded on
+demand just like bz2, lzma, OpenSSL, Tcl/Tk, and SQLite.
+
+..
+
+.. bpo: 31340
+.. date: 2017-09-04-13-19-05
+.. nonce: MbkzLi
+.. section: Windows
+
+Change to building with MSVC v141 (included with Visual Studio 2017)
+
+..
+
+.. bpo: 30581
+.. date: 2017-08-04-10-05-19
+.. nonce: OQhR7l
+.. section: Windows
+
+os.cpu_count() now returns the correct number of processors on Windows when
+the number of logical processors is greater than 64.
+
+..
+
+.. bpo: 30916
+.. date: 2017-07-15-00-40-12
+.. nonce: BpCrro
+.. section: Windows
+
+Pre-build OpenSSL, Tcl and Tk and include the binaries in the build.
+
+..
+
+.. bpo: 30731
+.. date: 2017-07-13-11-22-53
+.. nonce: nmMDwI
+.. section: Windows
+
+Add a missing xmlns to python.manifest so that it matches the schema.
+
+..
+
+.. bpo: 30291
+.. date: 2017-06-28-03-20-48
+.. nonce: zBpOl6
+.. section: Windows
+
+Allow requiring 64-bit interpreters from py.exe using -64 suffix.
+Contributed by Steve (Gadget) Barnes.
+
+..
+
+.. bpo: 30362
+.. date: 2017-06-28-03-08-22
+.. nonce: XxeVMB
+.. section: Windows
+
+Adds list options (-0, -0p) to py.exe launcher. Contributed by Steve Barnes.
+
+..
+
+.. bpo: 23451
+.. date: 2017-06-27-07-04-06
+.. nonce: bl_QOB
+.. section: Windows
+
+Fix socket deprecation warnings in socketmodule.c. Patch by Segev Finer.
+
+..
+
+.. bpo: 30450
+.. date: 0088
+.. nonce: qsaK8y
+.. section: Windows
+
+The build process on Windows no longer depends on Subversion, instead
+pulling external code from GitHub via a Python script. If Python 3.6 is not
+found on the system (via ``py -3.6``), NuGet is used to download a copy of
+32-bit Python.
+
+..
+
+.. bpo: 29579
+.. date: 0087
+.. nonce: 07B-FQ
+.. section: Windows
+
+Removes readme.txt from the installer.
+
+..
+
+.. bpo: 25778
+.. date: 0086
+.. nonce: 8uKJ82
+.. section: Windows
+
+winreg does not truncate string correctly (Patch by Eryk Sun)
+
+..
+
+.. bpo: 28896
+.. date: 0085
+.. nonce: qOcBBL
+.. section: Windows
+
+Deprecate WindowsRegistryFinder and disable it by default
+
+..
+
+.. bpo: 28522
+.. date: 0084
+.. nonce: XHMQa7
+.. section: Windows
+
+Fixes mishandled buffer reallocation in getpathp.c
+
+..
+
+.. bpo: 28402
+.. date: 0083
+.. nonce: v9zETJ
+.. section: Windows
+
+Adds signed catalog files for stdlib on Windows.
+
+..
+
+.. bpo: 28333
+.. date: 0082
+.. nonce: KnpeO4
+.. section: Windows
+
+Enables Unicode for ps1/ps2 and input() prompts. (Patch by Eryk Sun)
+
+..
+
+.. bpo: 28251
+.. date: 0081
+.. nonce: tR_AFs
+.. section: Windows
+
+Improvements to help manuals on Windows.
+
+..
+
+.. bpo: 28110
+.. date: 0080
+.. nonce: cnkP5F
+.. section: Windows
+
+launcher.msi has different product codes between 32-bit and 64-bit
+
+..
+
+.. bpo: 28161
+.. date: 0079
+.. nonce: hF91LI
+.. section: Windows
+
+Opening CON for write access fails
+
+..
+
+.. bpo: 28162
+.. date: 0078
+.. nonce: 3FHPVD
+.. section: Windows
+
+WindowsConsoleIO readall() fails if first line starts with Ctrl+Z
+
+..
+
+.. bpo: 28163
+.. date: 0077
+.. nonce: -DUgJw
+.. section: Windows
+
+WindowsConsoleIO fileno() passes wrong flags to _open_osfhandle
+
+..
+
+.. bpo: 28164
+.. date: 0076
+.. nonce: 5MfN0J
+.. section: Windows
+
+_PyIO_get_console_type fails for various paths
+
+..
+
+.. bpo: 28137
+.. date: 0075
+.. nonce: C1uvzY
+.. section: Windows
+
+Renames Windows path file to ._pth
+
+..
+
+.. bpo: 28138
+.. date: 0074
+.. nonce: pNdv64
+.. section: Windows
+
+Windows ._pth file should allow import site
+
+..
+
+.. bpo: 31493
+.. date: 2017-09-16-23-43-39
+.. nonce: nmHMCR
+.. section: IDLE
+
+IDLE code context -- fix code update and font update timers.
+Canceling timers prevents a warning message when test_idle completes.
+
+..
+
+.. bpo: 31488
+.. date: 2017-09-16-01-21-20
+.. nonce: 0rtXIT
+.. section: IDLE
+
+IDLE - Update non-key options in former extension classes. When applying
+configdialog changes, call .reload for each feature class. Change ParenMatch
+so updated options affect existing instances attached to existing editor
+windows.
+
+..
+
+.. bpo: 31477
+.. date: 2017-09-15-12-38-47
+.. nonce: n__6sa
+.. section: IDLE
+
+IDLE - Improve rstrip entry in doc. Strip trailing whitespace strips more
+than blank spaces. Multiline string literals are not skipped.
+
+..
+
+.. bpo: 31480
+.. date: 2017-09-14-17-53-53
+.. nonce: 4WJ0pl
+.. section: IDLE
+
+IDLE - make tests pass with zzdummy extension disabled by default.
+
+..
+
+.. bpo: 31421
+.. date: 2017-09-12-08-38-27
+.. nonce: mYfQNq
+.. section: IDLE
+
+Document how IDLE runs tkinter programs. IDLE calls tcl/tk update in the
+background in order to make live
+interaction and experimentation with tkinter applications much easier.
+
+..
+
+.. bpo: 31414
+.. date: 2017-09-11-15-46-05
+.. nonce: wiepgK
+.. section: IDLE
+
+IDLE -- fix tk entry box tests by deleting first. Adding to an int entry is
+not the same as deleting and inserting because int('') will fail.
+
+..
+
+.. bpo: 31051
+.. date: 2017-08-30-00-06-58
+.. nonce: 50Jp_Q
+.. section: IDLE
+
+Rearrange IDLE configdialog GenPage into Window, Editor, and Help sections.
+
+..
+
+.. bpo: 30617
+.. date: 2017-08-27-16-49-36
+.. nonce: UHnswr
+.. section: IDLE
+
+IDLE - Add docstrings and tests for outwin subclass of editor.
+Move some data and functions from the class to module level. Patch by Cheryl
+Sabella.
+
+..
+
+.. bpo: 31287
+.. date: 2017-08-27-15-31-33
+.. nonce: aZERfI
+.. section: IDLE
+
+IDLE - Do not modify tkinter.message in test_configdialog.
+
+..
+
+.. bpo: 27099
+.. date: 2017-08-24-13-48-16
+.. nonce: rENefC
+.. section: IDLE
+
+Convert IDLE's built-in 'extensions' to regular features.
+About 10 IDLE features were implemented as supposedly optional extensions.
+Their different behavior could be confusing or worse for users and not good
+for maintenance. Hence the conversion.
+The main difference for users is that user configurable key bindings for
+builtin features are now handled uniformly. Now, editing a binding in a
+keyset only affects its value in the keyset. All bindings are defined
+together in the system-specific default keysets in config-extensions.def.
+All custom keysets are saved as a whole in config-extension.cfg. All take
+effect as soon as one clicks Apply or Ok.
+The affected events are '<<force-open-completions>>', '<<expand-word>>',
+'<<force-open-calltip>>', '<<flash-paren>>', '<<format-paragraph>>',
+'<<run-module>>', '<<check-module>>', and '<<zoom-height>>'. Any (global)
+customizations made before 3.6.3 will not affect their keyset-specific
+customization after 3.6.3. and vice versa.
+Initial patch by Charles Wohlganger.
+
+..
+
+.. bpo: 31206
+.. date: 2017-08-18-14-13-42
+.. nonce: F1-tKK
+.. section: IDLE
+
+IDLE: Factor HighPage(Frame) class from ConfigDialog. Patch by Cheryl
+Sabella.
+
+..
+
+.. bpo: 31001
+.. date: 2017-08-17-15-00-20
+.. nonce: KLxYHC
+.. section: IDLE
+
+Add tests for configdialog highlight tab. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31205
+.. date: 2017-08-15-12-58-23
+.. nonce: iuziZ5
+.. section: IDLE
+
+IDLE: Factor KeysPage(Frame) class from ConfigDialog. The slightly modified
+tests continue to pass. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31130
+.. date: 2017-08-07-14-02-56
+.. nonce: FbsC7f
+.. section: IDLE
+
+IDLE -- stop leaks in test_configdialog. Initial patch by Victor Stinner.
+
+..
+
+.. bpo: 31002
+.. date: 2017-08-03-17-54-02
+.. nonce: kUSgTE
+.. section: IDLE
+
+Add tests for configdialog keys tab. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 19903
+.. date: 2017-08-03-14-08-42
+.. nonce: sqE1FS
+.. section: IDLE
+
+IDLE: Calltips use `inspect.signature` instead of `inspect.getfullargspec`.
+This improves calltips for builtins converted to use Argument Clinic. Patch
+by Louie Lu.
+
+..
+
+.. bpo: 31083
+.. date: 2017-07-31-23-20-51
+.. nonce: 991FXm
+.. section: IDLE
+
+IDLE - Add an outline of a TabPage class in configdialog. Update existing
+classes to match outline. Initial patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31050
+.. date: 2017-07-30-17-39-59
+.. nonce: AXR3kP
+.. section: IDLE
+
+Factor GenPage(Frame) class from ConfigDialog. The slightly modified tests
+continue to pass. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31004
+.. date: 2017-07-30-01-00-58
+.. nonce: m8cc1t
+.. section: IDLE
+
+IDLE - Factor FontPage(Frame) class from ConfigDialog.
+Slightly modified tests continue to pass. Fix General tests. Patch mostly by
+Cheryl Sabella.
+
+..
+
+.. bpo: 30781
+.. date: 2017-07-28-18-59-06
+.. nonce: ud5m18
+.. section: IDLE
+
+IDLE - Use ttk widgets in ConfigDialog. Patches by Terry Jan Reedy and
+Cheryl Sabella.
+
+..
+
+.. bpo: 31060
+.. date: 2017-07-27-14-48-42
+.. nonce: GdY_VY
+.. section: IDLE
+
+IDLE - Finish rearranging methods of ConfigDialog Grouping methods
+pertaining to each tab and the buttons will aid writing tests and improving
+the tabs and will enable splitting the groups into classes.
+
+..
+
+.. bpo: 30853
+.. date: 2017-07-27-10-01-14
+.. nonce: enPvvc
+.. section: IDLE
+
+IDLE -- Factor a VarTrace class out of ConfigDialog.
+Instance tracers manages pairs consisting of a tk variable and a callback
+function. When tracing is turned on, setting the variable calls the
+function. Test coverage for the new class is 100%.
+
+..
+
+.. bpo: 31003
+.. date: 2017-07-25-01-28-35
+.. nonce: bYINVH
+.. section: IDLE
+
+IDLE: Add more tests for General tab.
+
+..
+
+.. bpo: 30993
+.. date: 2017-07-22-18-08-41
+.. nonce: 34vJkB
+.. section: IDLE
+
+IDLE - Improve configdialog font page and tests.
+In configdialog: Document causal pathways in create_font_tab docstring.
+Simplify some attribute names. Move set_samples calls to var_changed_font
+(idea from Cheryl Sabella). Move related functions to positions after the
+create widgets function.
+In test_configdialog: Fix test_font_set so not order dependent. Fix renamed
+test_indent_scale so it tests the widget. Adjust tests for movement of
+set_samples call. Add tests for load functions. Put all font tests in one
+class and tab indent tests in another. Except for two lines, these tests
+completely cover the related functions.
+
+..
+
+.. bpo: 30981
+.. date: 2017-07-21-01-55-14
+.. nonce: ZFvQPt
+.. section: IDLE
+
+IDLE -- Add more configdialog font page tests.
+
+..
+
+.. bpo: 28523
+.. date: 2017-07-21-00-54-52
+.. nonce: OPcqYJ
+.. section: IDLE
+
+IDLE: replace 'colour' with 'color' in configdialog.
+
+..
+
+.. bpo: 30917
+.. date: 2017-07-17-23-35-57
+.. nonce: hSiuuO
+.. section: IDLE
+
+Add tests for idlelib.config.IdleConf. Increase coverage from 46% to 96%.
+Patch by Louie Lu.
+
+..
+
+.. bpo: 30934
+.. date: 2017-07-15-22-26-57
+.. nonce: BanuSB
+.. section: IDLE
+
+Document coverage details for idlelib tests.
+Add section to idlelib/idle-test/README.txt.
+Include check that branches are taken both ways.
+Exclude IDLE-specific code that does not run during unit tests.
+
+..
+
+.. bpo: 30913
+.. date: 2017-07-13-23-07-33
+.. nonce: aezn_e
+.. section: IDLE
+
+IDLE: Document ConfigDialog tk Vars, methods, and widgets in docstrings This
+will facilitate improving the dialog and splitting up the class. Original
+patch by Cheryl Sabella.
+
+..
+
+.. bpo: 30899
+.. date: 2017-07-11-02-26-17
+.. nonce: SQmVO8
+.. section: IDLE
+
+IDLE: Add tests for ConfigParser subclasses in config. Patch by Louie Lu.
+
+..
+
+.. bpo: 30881
+.. date: 2017-07-11-02-21-42
+.. nonce: 4KAq_9
+.. section: IDLE
+
+IDLE: Add docstrings to browser.py. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 30851
+.. date: 2017-07-09-23-53-00
+.. nonce: AHXBYa
+.. section: IDLE
+
+IDLE: Remove unused variables in configdialog. One is a duplicate, one is
+set but cannot be altered by users. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 30870
+.. date: 2017-07-08-17-57-04
+.. nonce: IcR2pf
+.. section: IDLE
+
+IDLE: In Settings dialog, select font with Up, Down keys as well as mouse.
+Initial patch by Louie Lu.
+
+..
+
+.. bpo: 8231
+.. date: 2017-07-07-21-10-55
+.. nonce: yEge3L
+.. section: IDLE
+
+IDLE: call config.IdleConf.GetUserCfgDir only once.
+
+..
+
+.. bpo: 30779
+.. date: 2017-07-07-20-26-37
+.. nonce: 8KXEXN
+.. section: IDLE
+
+IDLE: Factor ConfigChanges class from configdialog, put in config; test. *
+In config, put dump test code in a function; run it and unittest in 'if
+__name__ == '__main__'. * Add class config.ConfigChanges based on
+changes_class_v4.py on bpo issue. * Add class test_config.ChangesTest,
+partly using configdialog_tests_v1.py. * Revise configdialog to use
+ConfigChanges; see tracker msg297804. * Revise test_configdialog to match
+configdialog changes. * Remove configdialog functions unused or moved to
+ConfigChanges. Cheryl Sabella contributed parts of the patch.
+
+..
+
+.. bpo: 30777
+.. date: 2017-07-04-22-45-46
+.. nonce: uxzlMB
+.. section: IDLE
+
+IDLE: configdialog - Add docstrings and fix comments. Patch by Cheryl
+Sabella.
+
+..
+
+.. bpo: 30495
+.. date: 2017-06-29-18-23-06
+.. nonce: qIWgc4
+.. section: IDLE
+
+IDLE: Improve textview with docstrings, PEP8 names, and more tests. Patch by
+Cheryl Sabella.
+
+..
+
+.. bpo: 30723
+.. date: 2017-06-27-19-05-40
+.. nonce: rQh06y
+.. section: IDLE
+
+IDLE: Make several improvements to parenmatch. Add 'parens' style to
+highlight both opener and closer. Make 'default' style, which is not
+default, a synonym for 'opener'. Make time-delay work the same with all
+styles. Add help for config dialog extensions tab, including help for
+parenmatch. Add new tests. Original patch by Charles Wohlganger.
+
+..
+
+.. bpo: 30674
+.. date: 2017-06-27-01-40-34
+.. nonce: ppK_q8
+.. section: IDLE
+
+IDLE: add docstrings to grep module. Patch by Cheryl Sabella
+
+..
+
+.. bpo: 21519
+.. date: 2017-06-27-00-29-56
+.. nonce: fTj9T0
+.. section: IDLE
+
+IDLE's basic custom key entry dialog now detects duplicates properly.
+Original patch by Saimadhav Heblikar.
+
+..
+
+.. bpo: 29910
+.. date: 2017-06-26-22-45-27
+.. nonce: mqHh7u
+.. section: IDLE
+
+IDLE no longer deletes a character after commenting out a region by a key
+shortcut. Add ``return 'break'`` for this and other potential conflicts
+between IDLE and default key bindings.
+
+..
+
+.. bpo: 30728
+.. date: 2017-06-26-15-47-13
+.. nonce: qH4TGL
+.. section: IDLE
+
+Review and change idlelib.configdialog names. Lowercase method and attribute
+names. Replace 'colour' with 'color', expand overly cryptic names, delete
+unneeded underscores. Replace ``import *`` with specific imports. Patches by
+Cheryl Sabella.
+
+..
+
+.. bpo: 6739
+.. date: 2017-06-26-00-28-59
+.. nonce: x5MfhB
+.. section: IDLE
+
+IDLE: Verify user-entered key sequences by trying to bind them with tk. Add
+tests for all 3 validation functions. Original patch by G Polo. Tests added
+by Cheryl Sabella.
+
+..
+
+.. bpo: 15786
+.. date: 0096
+.. nonce: _XRbaR
+.. section: IDLE
+
+Fix several problems with IDLE's autocompletion box. The following should
+now work: clicking on selection box items; using the scrollbar; selecting an
+item by hitting Return. Hangs on MacOSX should no longer happen. Patch by
+Louie Lu.
+
+..
+
+.. bpo: 25514
+.. date: 0095
+.. nonce: 882pXa
+.. section: IDLE
+
+Add doc subsubsection about IDLE failure to start. Popup no-connection
+message directs users to this section.
+
+..
+
+.. bpo: 30642
+.. date: 0094
+.. nonce: 3Zujzt
+.. section: IDLE
+
+Fix reference leaks in IDLE tests. Patches by Louie Lu and Terry Jan Reedy.
+
+..
+
+.. bpo: 30495
+.. date: 0093
+.. nonce: I3i5vL
+.. section: IDLE
+
+Add docstrings for textview.py and use PEP8 names. Patches by Cheryl Sabella
+and Terry Jan Reedy.
+
+..
+
+.. bpo: 30290
+.. date: 0092
+.. nonce: fZ3kod
+.. section: IDLE
+
+Help-about: use pep8 names and add tests. Increase coverage to 100%. Patches
+by Louie Lu, Cheryl Sabella, and Terry Jan Reedy.
+
+..
+
+.. bpo: 30303
+.. date: 0091
+.. nonce: 2L2F-4
+.. section: IDLE
+
+Add _utest option to textview; add new tests. Increase coverage to 100%.
+Patches by Louie Lu and Terry Jan Reedy.
+
+..
+
+.. bpo: 29071
+.. date: 0090
+.. nonce: FCOpJn
+.. section: IDLE
+
+IDLE colors f-string prefixes (but not invalid ur prefixes).
+
+..
+
+.. bpo: 28572
+.. date: 0089
+.. nonce: 1_duKY
+.. section: IDLE
+
+Add 10% to coverage of IDLE's test_configdialog. Update and augment
+description of the configuration system.
+
+..
+
+.. bpo: 30983
+.. date: 2017-08-18-17-19-23
+.. nonce: ggGz9z
+.. section: Tools/Demos
+
+gdb integration commands (py-bt, etc.) work on optimized shared builds now,
+too. :pep:`523` introduced _PyEval_EvalFrameDefault which inlines
+PyEval_EvalFrameEx on non-debug shared builds. This broke the ability to
+use py-bt, py-up, and a few other Python-specific gdb integrations. The
+problem is fixed by only looking for _PyEval_EvalFrameDefault frames in
+python-gdb.py. Original patch by Bruno "Polaco" Penteado.
+
+..
+
+.. bpo: 29748
+.. date: 0018
+.. nonce: 6pV6s9
+.. section: Tools/Demos
+
+Added the slice index converter in Argument Clinic.
+
+..
+
+.. bpo: 24037
+.. date: 0017
+.. nonce: KPFC7o
+.. section: Tools/Demos
+
+Argument Clinic now uses the converter `bool(accept={int})` rather than
+`int` for semantical booleans. This avoids repeating the default value for
+Python and C and will help in converting to `bool` in future.
+
+..
+
+.. bpo: 29367
+.. date: 0016
+.. nonce: 4dOKL0
+.. section: Tools/Demos
+
+python-gdb.py now supports also ``method-wrapper`` (``wrapperobject``)
+objects.
+
+..
+
+.. bpo: 28023
+.. date: 0015
+.. nonce: 4gzSGp
+.. section: Tools/Demos
+
+Fix python-gdb.py didn't support new dict implementation.
+
+..
+
+.. bpo: 15369
+.. date: 0014
+.. nonce: bdZ3n-
+.. section: Tools/Demos
+
+The pybench and pystone microbenchmark have been removed from Tools. Please
+use the new Python benchmark suite https://github.com/python/performance
+which is more reliable and includes a portable version of pybench working on
+Python 2 and Python 3.
+
+..
+
+.. bpo: 28102
+.. date: 0013
+.. nonce: 5fKaek
+.. section: Tools/Demos
+
+The zipfile module CLI now prints usage to stderr. Patch by Stephen J.
+Turnbull.
+
+..
+
+.. bpo: 31338
+.. date: 2017-09-05-17-51-12
+.. nonce: LjA43Y
+.. section: C API
+
+Added the ``Py_UNREACHABLE()`` macro for code paths which are never expected
+to be reached. This and a few other useful macros are now documented in the
+C API manual.
+
+..
+
+.. bpo: 30832
+.. date: 2017-07-03-17-25-40
+.. nonce: PcTAEP
+.. section: C API
+
+Remove own implementation for thread-local storage.
+CPython has provided the own implementation for thread-local storage (TLS)
+on Python/thread.c, it's used in the case which a platform has not supplied
+native TLS. However, currently all supported platforms (Windows and
+pthreads) have provided native TLS and defined the Py_HAVE_NATIVE_TLS macro
+with unconditional in any case.
+
+..
+
+.. bpo: 30708
+.. date: 0073
+.. nonce: np-l1j
+.. section: C API
+
+PyUnicode_AsWideCharString() now raises a ValueError if the second argument
+is NULL and the wchar_t\* string contains null characters.
+
+..
+
+.. bpo: 16500
+.. date: 0072
+.. nonce: lRpooa
+.. section: C API
+
+Deprecate PyOS_AfterFork() and add PyOS_BeforeFork(),
+PyOS_AfterFork_Parent() and PyOS_AfterFork_Child().
+
+..
+
+.. bpo: 6532
+.. date: 0071
+.. nonce: qcH6k1
+.. section: C API
+
+The type of results of PyThread_start_new_thread() and
+PyThread_get_thread_ident(), and the id parameter of
+PyThreadState_SetAsyncExc() changed from "long" to "unsigned long".
+
+..
+
+.. bpo: 27867
+.. date: 0070
+.. nonce: J-8CGo
+.. section: C API
+
+Function PySlice_GetIndicesEx() is deprecated and replaced with a macro if
+Py_LIMITED_API is not set or set to the value between 0x03050400 and
+0x03060000 (not including) or 0x03060100 or higher. Added functions
+PySlice_Unpack() and PySlice_AdjustIndices().
+
+..
+
+.. bpo: 29083
+.. date: 0069
+.. nonce: tGTjr_
+.. section: C API
+
+Fixed the declaration of some public API functions. PyArg_VaParse() and
+PyArg_VaParseTupleAndKeywords() were not available in limited API.
+PyArg_ValidateKeywordArguments(), PyArg_UnpackTuple() and Py_BuildValue()
+were not available in limited API of version < 3.3 when PY_SSIZE_T_CLEAN is
+defined.
+
+..
+
+.. bpo: 28769
+.. date: 0068
+.. nonce: Ecmtn8
+.. section: C API
+
+The result of PyUnicode_AsUTF8AndSize() and PyUnicode_AsUTF8() is now of
+type ``const char *`` rather of ``char *``.
+
+..
+
+.. bpo: 29058
+.. date: 0067
+.. nonce: 0wNVP8
+.. section: C API
+
+All stable API extensions added after Python 3.2 are now available only when
+Py_LIMITED_API is set to the PY_VERSION_HEX value of the minimum Python
+version supporting this API.
+
+..
+
+.. bpo: 28822
+.. date: 0066
+.. nonce: gMqwvb
+.. section: C API
+
+The index parameters *start* and *end* of PyUnicode_FindChar() are now
+adjusted to behave like ``str[start:end]``.
+
+..
+
+.. bpo: 28808
+.. date: 0065
+.. nonce: A03X6r
+.. section: C API
+
+PyUnicode_CompareWithASCIIString() now never raises exceptions.
+
+..
+
+.. bpo: 28761
+.. date: 0064
+.. nonce: iOgCoX
+.. section: C API
+
+The fields name and doc of structures PyMemberDef, PyGetSetDef,
+PyStructSequence_Field, PyStructSequence_Desc, and wrapperbase are now of
+type ``const char *`` rather of ``char *``.
+
+..
+
+.. bpo: 28748
+.. date: 0063
+.. nonce: AMgb_G
+.. section: C API
+
+Private variable _Py_PackageContext is now of type ``const char *`` rather
+of ``char *``.
+
+..
+
+.. bpo: 19569
+.. date: 0062
+.. nonce: IPke0J
+.. section: C API
+
+Compiler warnings are now emitted if use most of deprecated functions.
+
+..
+
+.. bpo: 28426
+.. date: 0061
+.. nonce: zPwvbI
+.. section: C API
+
+Deprecated undocumented functions PyUnicode_AsEncodedObject(),
+PyUnicode_AsDecodedObject(), PyUnicode_AsDecodedUnicode() and
+PyUnicode_AsEncodedUnicode().
--- /dev/null
+.. bpo: 31558
+.. date: 2017-10-16-14-27-25
+.. nonce: K-uRRm
+.. release date: 2017-10-16
+.. section: Core and Builtins
+
+``gc.freeze()`` is a new API that allows for moving all objects currently
+tracked by the garbage collector to a permanent generation, effectively
+removing them from future collection events. This can be used to protect
+those objects from having their PyGC_Head mutated. In effect, this enables
+great copy-on-write stability at fork().
+
+..
+
+.. bpo: 31642
+.. date: 2017-10-08-10-00-55
+.. nonce: 1IKqgs
+.. section: Core and Builtins
+
+Restored blocking "from package import module" by setting
+sys.modules["package.module"] to None.
+
+..
+
+.. bpo: 31708
+.. date: 2017-10-06-02-10-48
+.. nonce: 66CCVU
+.. section: Core and Builtins
+
+Allow use of asynchronous generator expressions in synchronous functions.
+
+..
+
+.. bpo: 31709
+.. date: 2017-10-06-00-27-04
+.. nonce: _PmU51
+.. section: Core and Builtins
+
+Drop support of asynchronous __aiter__.
+
+..
+
+.. bpo: 30404
+.. date: 2017-10-03-23-46-39
+.. nonce: _9Yi5u
+.. section: Core and Builtins
+
+The -u option now makes the stdout and stderr streams unbuffered rather than
+line-buffered.
+
+..
+
+.. bpo: 31619
+.. date: 2017-09-29-20-32-24
+.. nonce: 6gQ1kv
+.. section: Core and Builtins
+
+Fixed a ValueError when convert a string with large number of underscores to
+integer with binary base.
+
+..
+
+.. bpo: 31602
+.. date: 2017-09-27-09-30-03
+.. nonce: MtgLCn
+.. section: Core and Builtins
+
+Fix an assertion failure in `zipimporter.get_source()` in case of a bad
+`zlib.decompress()`. Patch by Oren Milman.
+
+..
+
+.. bpo: 31592
+.. date: 2017-09-26-16-05-04
+.. nonce: IFBZj9
+.. section: Core and Builtins
+
+Fixed an assertion failure in Python parser in case of a bad
+`unicodedata.normalize()`. Patch by Oren Milman.
+
+..
+
+.. bpo: 31588
+.. date: 2017-09-26-13-03-16
+.. nonce: wT9Iy7
+.. section: Core and Builtins
+
+Raise a `TypeError` with a helpful error message when class creation fails
+due to a metaclass with a bad ``__prepare__()`` method. Patch by Oren
+Milman.
+
+..
+
+.. bpo: 31574
+.. date: 2017-09-25-12-35-48
+.. nonce: 5yX5r5
+.. section: Core and Builtins
+
+Importlib was instrumented with two dtrace probes to profile import timing.
+
+..
+
+.. bpo: 31566
+.. date: 2017-09-24-09-57-04
+.. nonce: OxwINs
+.. section: Core and Builtins
+
+Fix an assertion failure in `_warnings.warn()` in case of a bad ``__name__``
+global. Patch by Oren Milman.
+
+..
+
+.. bpo: 31506
+.. date: 2017-09-19-10-29-36
+.. nonce: pRVTRB
+.. section: Core and Builtins
+
+Improved the error message logic for object.__new__ and object.__init__.
+
+..
+
+.. bpo: 31505
+.. date: 2017-09-18-12-07-39
+.. nonce: VomaFa
+.. section: Core and Builtins
+
+Fix an assertion failure in `json`, in case `_json.make_encoder()` received
+a bad `encoder()` argument. Patch by Oren Milman.
+
+..
+
+.. bpo: 31492
+.. date: 2017-09-16-22-49-16
+.. nonce: RtyteL
+.. section: Core and Builtins
+
+Fix assertion failures in case of failing to import from a module with a bad
+``__name__`` attribute, and in case of failing to access an attribute of
+such a module. Patch by Oren Milman.
+
+..
+
+.. bpo: 31478
+.. date: 2017-09-15-09-13-07
+.. nonce: o06iKD
+.. section: Core and Builtins
+
+Fix an assertion failure in `_random.Random.seed()` in case the argument has
+a bad ``__abs__()`` method. Patch by Oren Milman.
+
+..
+
+.. bpo: 31336
+.. date: 2017-09-13-12-04-23
+.. nonce: gi2ahY
+.. section: Core and Builtins
+
+Speed up class creation by 10-20% by reducing the overhead in the necessary
+special method lookups. Patch by Stefan Behnel.
+
+..
+
+.. bpo: 31415
+.. date: 2017-09-11-14-28-56
+.. nonce: GBdz7o
+.. section: Core and Builtins
+
+Add ``-X importtime`` option to show how long each import takes. It can be
+used to optimize application's startup time. Support the
+:envvar:`PYTHONPROFILEIMPORTTIME` as an equivalent way to enable this.
+
+..
+
+.. bpo: 31410
+.. date: 2017-09-10-20-58-51
+.. nonce: wD_RbH
+.. section: Core and Builtins
+
+Optimized calling wrapper and classmethod descriptors.
+
+..
+
+.. bpo: 31353
+.. date: 2017-09-05-14-19-02
+.. nonce: oGZUeJ
+.. section: Core and Builtins
+
+:pep:`553` - Add a new built-in called ``breakpoint()`` which calls
+``sys.breakpointhook()``. By default this imports ``pdb`` and calls
+``pdb.set_trace()``, but users may override ``sys.breakpointhook()`` to call
+whatever debugger they want. The original value of the hook is saved in
+``sys.__breakpointhook__``.
+
+..
+
+.. bpo: 17852
+.. date: 2017-09-04-12-46-25
+.. nonce: OxAtCg
+.. section: Core and Builtins
+
+Maintain a list of open buffered files, flush them before exiting the
+interpreter. Based on a patch from Armin Rigo.
+
+..
+
+.. bpo: 31315
+.. date: 2017-09-01-00-40-58
+.. nonce: ZX20bl
+.. section: Core and Builtins
+
+Fix an assertion failure in imp.create_dynamic(), when spec.name is not a
+string. Patch by Oren Milman.
+
+..
+
+.. bpo: 31311
+.. date: 2017-08-31-17-52-56
+.. nonce: bNE2l-
+.. section: Core and Builtins
+
+Fix a crash in the ``__setstate__()`` method of `ctypes._CData`, in case of
+a bad ``__dict__``. Patch by Oren Milman.
+
+..
+
+.. bpo: 31293
+.. date: 2017-08-28-17-51-42
+.. nonce: eMYZXj
+.. section: Core and Builtins
+
+Fix crashes in true division and multiplication of a timedelta object by a
+float with a bad as_integer_ratio() method. Patch by Oren Milman.
+
+..
+
+.. bpo: 31285
+.. date: 2017-08-27-21-18-30
+.. nonce: 7lzaKV
+.. section: Core and Builtins
+
+Fix an assertion failure in `warnings.warn_explicit`, when the return value
+of the received loader's get_source() has a bad splitlines() method. Patch
+by Oren Milman.
+
+..
+
+.. bpo: 30406
+.. date: 2017-07-20-22-03-44
+.. nonce: _kr47t
+.. section: Core and Builtins
+
+Make ``async`` and ``await`` proper keywords, as specified in :pep:`492`.
+
+..
+
+.. bpo: 30058
+.. date: 2017-10-12-19-00-53
+.. nonce: cENtry
+.. section: Library
+
+Fixed buffer overflow in select.kqueue.control().
+
+..
+
+.. bpo: 31672
+.. date: 2017-10-12-02-47-16
+.. nonce: DaOkVd
+.. section: Library
+
+``idpattern`` in ``string.Template`` matched some non-ASCII characters. Now
+it uses ``-i`` regular expression local flag to avoid non-ASCII characters.
+
+..
+
+.. bpo: 31701
+.. date: 2017-10-09-17-42-30
+.. nonce: NRrVel
+.. section: Library
+
+On Windows, faulthandler.enable() now ignores MSC and COM exceptions.
+
+..
+
+.. bpo: 31728
+.. date: 2017-10-08-23-28-30
+.. nonce: XrVMME
+.. section: Library
+
+Prevent crashes in `_elementtree` due to unsafe cleanup of `Element.text`
+and `Element.tail`. Patch by Oren Milman.
+
+..
+
+.. bpo: 31671
+.. date: 2017-10-04-21-28-44
+.. nonce: E-zfc9
+.. section: Library
+
+Now ``re.compile()`` converts passed RegexFlag to normal int object before
+compiling. bm_regex_compile benchmark shows 14% performance improvements.
+
+..
+
+.. bpo: 30397
+.. date: 2017-10-03-22-45-50
+.. nonce: e4F7Kr
+.. section: Library
+
+The types of compiled regular objects and match objects are now exposed as
+`re.Pattern` and `re.Match`. This adds information in pydoc output for the
+re module.
+
+..
+
+.. bpo: 31675
+.. date: 2017-10-03-15-06-24
+.. nonce: Nh7jJ3
+.. section: Library
+
+Fixed memory leaks in Tkinter's methods splitlist() and split() when pass a
+string larger than 2 GiB.
+
+..
+
+.. bpo: 31673
+.. date: 2017-10-03-14-37-46
+.. nonce: RFCrka
+.. section: Library
+
+Fixed typo in the name of Tkinter's method adderrorinfo().
+
+..
+
+.. bpo: 31648
+.. date: 2017-09-30-10-45-12
+.. nonce: Cai7ji
+.. section: Library
+
+Improvements to path predicates in ElementTree:
+Allow whitespace around predicate parts, i.e. "[a = 'text']" instead of requiring the less readable "[a='text']".
+Add support for text comparison of the current node, like "[.='text']".
+Patch by Stefan Behnel.
+
+..
+
+.. bpo: 30806
+.. date: 2017-09-29
+.. nonce: lP5GrH
+.. section: Library
+
+Fix the string representation of a netrc object.
+
+..
+
+.. bpo: 31638
+.. date: 2017-09-29-07-14-28
+.. nonce: jElfhl
+.. section: Library
+
+Add optional argument ``compressed`` to ``zipapp.create_archive``, and add
+option ``--compress`` to the command line interface of ``zipapp``.
+
+..
+
+.. bpo: 25351
+.. date: 2017-09-28-23-10-51
+.. nonce: 2JmFpF
+.. section: Library
+
+Avoid venv activate failures with undefined variables
+
+..
+
+.. bpo: 20519
+.. date: 2017-09-28-13-17-33
+.. nonce: FteeQQ
+.. section: Library
+
+Avoid ctypes use (if possible) and improve import time for uuid.
+
+..
+
+.. bpo: 28293
+.. date: 2017-09-26-17-51-17
+.. nonce: UC5pm4
+.. section: Library
+
+The regular expression cache is no longer completely dumped when it is full.
+
+..
+
+.. bpo: 31596
+.. date: 2017-09-26-11-38-52
+.. nonce: 50Eyel
+.. section: Library
+
+Added pthread_getcpuclockid() to the time module
+
+..
+
+.. bpo: 27494
+.. date: 2017-09-26-01-43-17
+.. nonce: 37QnaT
+.. section: Library
+
+Make 2to3 accept a trailing comma in generator expressions. For example,
+``set(x for x in [],)`` is now allowed.
+
+..
+
+.. bpo: 30347
+.. date: 2017-09-25-14-04-30
+.. nonce: B4--_D
+.. section: Library
+
+Stop crashes when concurrently iterate over itertools.groupby() iterators.
+
+..
+
+.. bpo: 30346
+.. date: 2017-09-24-13-08-46
+.. nonce: Csse77
+.. section: Library
+
+An iterator produced by itertools.groupby() iterator now becomes exhausted
+after advancing the groupby iterator.
+
+..
+
+.. bpo: 31556
+.. date: 2017-09-22-23-48-49
+.. nonce: 9J0u5H
+.. section: Library
+
+Cancel asyncio.wait_for future faster if timeout <= 0
+
+..
+
+.. bpo: 31540
+.. date: 2017-09-22-16-02-00
+.. nonce: ybDHT5
+.. section: Library
+
+Allow passing a context object in
+:class:`concurrent.futures.ProcessPoolExecutor` constructor. Also, free job
+resources in :class:`concurrent.futures.ProcessPoolExecutor` earlier to
+improve memory usage when a worker waits for new jobs.
+
+..
+
+.. bpo: 31516
+.. date: 2017-09-20-18-43-01
+.. nonce: 23Yuq3
+.. section: Library
+
+``threading.current_thread()`` should not return a dummy thread at shutdown.
+
+..
+
+.. bpo: 31525
+.. date: 2017-09-19-18-48-21
+.. nonce: O2TIL2
+.. section: Library
+
+In the sqlite module, require the sqlite3_prepare_v2 API. Thus, the sqlite
+module now requires sqlite version at least 3.3.9.
+
+..
+
+.. bpo: 26510
+.. date: 2017-09-19-13-29-29
+.. nonce: oncW6V
+.. section: Library
+
+argparse subparsers are now required by default. This matches behaviour in
+Python 2. For optional subparsers, use the new parameter
+``add_subparsers(required=False)``. Patch by Anthony Sottile.
+(As of 3.7.0rc1, the default was changed to not required as had been the case
+since Python 3.3.)
+
+..
+
+.. bpo: 27541
+.. date: 2017-09-17-19-59-04
+.. nonce: cIMFJW
+.. section: Library
+
+Reprs of subclasses of some collection and iterator classes (`bytearray`,
+`array.array`, `collections.deque`, `collections.defaultdict`,
+`itertools.count`, `itertools.repeat`) now contain actual type name insteads
+of hardcoded name of the base class.
+
+..
+
+.. bpo: 31351
+.. date: 2017-09-17-15-24-25
+.. nonce: yQdKv-
+.. section: Library
+
+python -m ensurepip now exits with non-zero exit code if pip bootstrapping
+has failed.
+
+..
+
+.. bpo: 31389
+.. date: 2017-09-07-15-31-47
+.. nonce: jNFYqB
+.. section: Library
+
+``pdb.set_trace()`` now takes an optional keyword-only argument ``header``.
+If given, this is printed to the console just before debugging begins.
+
+..
+
+.. bpo: 31537
+.. date: 2017-10-08-23-02-14
+.. nonce: SiFNM8
+.. section: Documentation
+
+Fix incorrect usage of ``get_history_length`` in readline documentation
+example code. Patch by Brad Smith.
+
+..
+
+.. bpo: 30085
+.. date: 2017-09-14-18-44-50
+.. nonce: 0J9w-u
+.. section: Documentation
+
+The operator functions without double underscores are preferred for clarity.
+The one with underscores are only kept for back-compatibility.
+
+..
+
+.. bpo: 31696
+.. date: 2017-10-04-23-40-32
+.. nonce: Y3_aBV
+.. section: Build
+
+Improve compiler version information in :data:`sys.version` when Python is
+built with Clang.
+
+..
+
+.. bpo: 31625
+.. date: 2017-09-28-23-21-20
+.. nonce: Bb2NXr
+.. section: Build
+
+Stop using ranlib on static libraries. Instead, we assume ar supports the
+'s' flag.
+
+..
+
+.. bpo: 31624
+.. date: 2017-09-28-20-54-52
+.. nonce: 11w91_
+.. section: Build
+
+Remove support for BSD/OS.
+
+..
+
+.. bpo: 22140
+.. date: 2017-09-26-22-39-58
+.. nonce: ZRf7Wn
+.. section: Build
+
+Prevent double substitution of prefix in python-config.sh.
+
+..
+
+.. bpo: 31569
+.. date: 2017-09-25-00-25-23
+.. nonce: TS49pM
+.. section: Build
+
+Correct PCBuild/ case to PCbuild/ in build scripts and documentation.
+
+..
+
+.. bpo: 31536
+.. date: 2017-09-20-21-32-21
+.. nonce: KUDjno
+.. section: Build
+
+Avoid wholesale rebuild after `make regen-all` if nothing changed.
+
+..
+
+.. bpo: 31460
+.. date: 2017-09-30-19-03-26
+.. nonce: HpveI6
+.. section: IDLE
+
+Simplify the API of IDLE's Module Browser.
+Passing a widget instead of an flist with a root widget opens the option of
+creating a browser frame that is only part of a window. Passing a full file
+name instead of pieces assumed to come from a .py file opens the possibility
+of browsing python files that do not end in .py.
+
+..
+
+.. bpo: 31649
+.. date: 2017-09-30-13-59-18
+.. nonce: LxN4Vb
+.. section: IDLE
+
+IDLE - Make _htest, _utest parameters keyword only.
+
+..
+
+.. bpo: 31559
+.. date: 2017-09-23-12-52-24
+.. nonce: ydckYX
+.. section: IDLE
+
+Remove test order dependence in idle_test.test_browser.
+
+..
+
+.. bpo: 31459
+.. date: 2017-09-22-20-26-23
+.. nonce: L0pnH9
+.. section: IDLE
+
+Rename IDLE's module browser from Class Browser to Module Browser. The
+original module-level class and method browser became a module browser, with
+the addition of module-level functions, years ago. Nested classes and
+functions were added yesterday. For back-compatibility, the virtual event
+<<open-class-browser>>, which appears on the Keys tab of the Settings
+dialog, is not changed. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31500
+.. date: 2017-09-18-10-43-03
+.. nonce: Y_YDxA
+.. section: IDLE
+
+Default fonts now are scaled on HiDPI displays.
+
+..
+
+.. bpo: 1612262
+.. date: 2017-08-14-15-13-50
+.. nonce: -x_Oyq
+.. section: IDLE
+
+IDLE module browser now shows nested classes and functions. Original patches
+for code and tests by Guilherme Polo and Cheryl Sabella, respectively.
+
+..
+
+.. bpo: 28280
+.. date: 2017-09-30-19-41-44
+.. nonce: K_EjpO
+.. section: C API
+
+Make `PyMapping_Keys()`, `PyMapping_Values()` and `PyMapping_Items()` always
+return a `list` (rather than a `list` or a `tuple`). Patch by Oren Milman.
+
+..
+
+.. bpo: 31532
+.. date: 2017-09-20-21-59-52
+.. nonce: s9Cw9_
+.. section: C API
+
+Fix memory corruption due to allocator mix in getpath.c between Py_GetPath()
+and Py_SetPath()
+
+..
+
+.. bpo: 25658
+.. date: 2017-06-24-14-30-44
+.. nonce: vm8vGE
+.. section: C API
+
+Implement :pep:`539` for Thread Specific Storage (TSS) API: it is a new Thread
+Local Storage (TLS) API to CPython which would supersede use of the existing
+TLS API within the CPython interpreter, while deprecating the existing API.
+PEP written by Erik M. Bray, patch by Masayuki Yamamoto.
--- /dev/null
+.. bpo: 32176
+.. date: 2017-12-02-21-37-22
+.. nonce: Wt25-N
+.. release date: 2017-12-05
+.. section: Core and Builtins
+
+co_flags.CO_NOFREE is now always set correctly by the code object
+constructor based on freevars and cellvars, rather than needing to be set
+correctly by the caller. This ensures it will be cleared automatically when
+additional cell references are injected into a modified code object and
+function.
+
+..
+
+.. bpo: 10544
+.. date: 2017-11-27-08-37-34
+.. nonce: 07nioT
+.. section: Core and Builtins
+
+Yield expressions are now deprecated in comprehensions and generator
+expressions. They are still permitted in the definition of the outermost
+iterable, as that is evaluated directly in the enclosing scope.
+
+..
+
+.. bpo: 32137
+.. date: 2017-11-26-14-36-30
+.. nonce: Stj5nL
+.. section: Core and Builtins
+
+The repr of deeply nested dict now raises a RecursionError instead of
+crashing due to a stack overflow.
+
+..
+
+.. bpo: 32096
+.. date: 2017-11-24-01-13-58
+.. nonce: CQTHXJ
+.. section: Core and Builtins
+
+Revert memory allocator changes in the C API: move structures back from
+_PyRuntime to Objects/obmalloc.c. The memory allocators are once again
+initialized statically, and so PyMem_RawMalloc() and Py_DecodeLocale() can
+be called before _PyRuntime_Initialize().
+
+..
+
+.. bpo: 32043
+.. date: 2017-11-16-03-44-08
+.. nonce: AAzwpZ
+.. section: Core and Builtins
+
+Add a new "developer mode": new "-X dev" command line option to enable debug
+checks at runtime.
+
+..
+
+.. bpo: 32023
+.. date: 2017-11-15-10-49-35
+.. nonce: XnCGT5
+.. section: Core and Builtins
+
+SyntaxError is now correctly raised when a generator expression without
+parenthesis is used instead of an inheritance list in a class definition.
+The duplication of the parentheses can be omitted only on calls.
+
+..
+
+.. bpo: 32012
+.. date: 2017-11-13-00-37-11
+.. nonce: Kprjqe
+.. section: Core and Builtins
+
+SyntaxError is now correctly raised when a generator expression without
+parenthesis is passed as an argument, but followed by a trailing comma. A
+generator expression always needs to be directly inside a set of parentheses
+and cannot have a comma on either side.
+
+..
+
+.. bpo: 28180
+.. date: 2017-11-12-11-44-22
+.. nonce: HQX000
+.. section: Core and Builtins
+
+A new internal ``_Py_SetLocaleFromEnv(category)`` helper function has been
+added in order to improve the consistency of behaviour across different
+``libc`` implementations (e.g. Android doesn't support setting the locale
+from the environment by default).
+
+..
+
+.. bpo: 31949
+.. date: 2017-11-05-16-11-07
+.. nonce: 2yNC_z
+.. section: Core and Builtins
+
+Fixed several issues in printing tracebacks (PyTraceBack_Print()).
+Setting sys.tracebacklimit to 0 or less now suppresses printing tracebacks.
+Setting sys.tracebacklimit to None now causes using the default limit.
+Setting sys.tracebacklimit to an integer larger than LONG_MAX now means using
+the limit LONG_MAX rather than the default limit.
+Fixed integer overflows in the case of more than ``2**31`` traceback items on
+Windows.
+Fixed output errors handling.
+
+..
+
+.. bpo: 30696
+.. date: 2017-10-28-22-06-03
+.. nonce: lhC3HE
+.. section: Core and Builtins
+
+Fix the interactive interpreter looping endlessly when no memory.
+
+..
+
+.. bpo: 20047
+.. date: 2017-10-28-19-11-05
+.. nonce: GuNAto
+.. section: Core and Builtins
+
+Bytearray methods partition() and rpartition() now accept only bytes-like
+objects as separator, as documented. In particular they now raise TypeError
+rather of returning a bogus result when an integer is passed as a separator.
+
+..
+
+.. bpo: 21720
+.. date: 2017-10-25-15-51-37
+.. nonce: BwIKLP
+.. section: Core and Builtins
+
+BytesWarning no longer emitted when the *fromlist* argument of
+``__import__()`` or the ``__all__`` attribute of the module contain bytes
+instances.
+
+..
+
+.. bpo: 31845
+.. date: 2017-10-24-21-27-32
+.. nonce: 8OS-k3
+.. section: Core and Builtins
+
+Environment variables are once more read correctly at interpreter startup.
+
+..
+
+.. bpo: 28936
+.. date: 2017-10-23-23-39-26
+.. nonce: C288Jh
+.. section: Core and Builtins
+
+Ensure that lexically first syntax error involving a parameter and
+``global`` or ``nonlocal`` is detected first at a given scope. Patch by Ivan
+Levkivskyi.
+
+..
+
+.. bpo: 31825
+.. date: 2017-10-20-14-07-46
+.. nonce: gJvmGW
+.. section: Core and Builtins
+
+Fixed OverflowError in the 'unicode-escape' codec and in
+codecs.escape_decode() when decode an escaped non-ascii byte.
+
+..
+
+.. bpo: 31618
+.. date: 2017-10-18-19-41-12
+.. nonce: liLDiS
+.. section: Core and Builtins
+
+The per-frame tracing logic added in 3.7a1 has been altered so that
+``frame->f_lineno`` is updated before either ``"line"`` or ``"opcode"``
+events are emitted. Previously, opcode events were emitted first, and
+therefore would occasionally see stale line numbers on the frame. The
+behavior of this feature has changed slightly as a result: when both
+``f_trace_lines`` and ``f_trace_opcodes`` are enabled, line events now occur
+first.
+
+..
+
+.. bpo: 28603
+.. date: 2017-10-17-13-29-19
+.. nonce: _-oia3
+.. section: Core and Builtins
+
+Print the full context/cause chain of exceptions on interpreter exit, even
+if an exception in the chain is unhashable or compares equal to later ones.
+Patch by Zane Bitter.
+
+..
+
+.. bpo: 31786
+.. date: 2017-10-15-23-44-57
+.. nonce: XwdEP4
+.. section: Core and Builtins
+
+Fix timeout rounding in the select module to round correctly negative
+timeouts between -1.0 and 0.0. The functions now block waiting for events as
+expected. Previously, the call was incorrectly non-blocking. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 31781
+.. date: 2017-10-13-20-01-47
+.. nonce: cXE9SM
+.. section: Core and Builtins
+
+Prevent crashes when calling methods of an uninitialized
+``zipimport.zipimporter`` object. Patch by Oren Milman.
+
+..
+
+.. bpo: 30399
+.. date: 2017-10-12-22-21-01
+.. nonce: 45f1gv
+.. section: Core and Builtins
+
+Standard repr() of BaseException with a single argument no longer contains
+redundant trailing comma.
+
+..
+
+.. bpo: 31626
+.. date: 2017-10-01-15-48-03
+.. nonce: reLPxY
+.. section: Core and Builtins
+
+Fixed a bug in debug memory allocator. There was a write to freed memory
+after shrinking a memory block.
+
+..
+
+.. bpo: 30817
+.. date: 2017-07-01-15-11-13
+.. nonce: j7ZvN_
+.. section: Core and Builtins
+
+`PyErr_PrintEx()` clears now the ignored exception that may be raised by
+`_PySys_SetObjectId()`, for example when no memory.
+
+..
+
+.. bpo: 28556
+.. date: 2017-12-05-02-03-07
+.. nonce: 9Z_PsJ
+.. section: Library
+
+Two minor fixes for ``typing`` module: allow shallow copying instances of
+generic classes, improve interaction of ``__init_subclass__`` with generics.
+Original PRs by Ivan Levkivskyi.
+
+..
+
+.. bpo: 32214
+.. date: 2017-12-04-15-51-57
+.. nonce: uozdNj
+.. section: Library
+
+PEP 557, Data Classes. Provides a decorator which adds boilerplate methods
+to classes which use type annotations so specify fields.
+
+..
+
+.. bpo: 27240
+.. date: 2017-12-02-16-06-00
+.. nonce: Kji34M
+.. section: Library
+
+The header folding algorithm for the new email policies has been rewritten,
+which also fixes bpo-30788, bpo-31831, and bpo-32182. In particular,
+RFC2231 folding is now done correctly.
+
+..
+
+.. bpo: 32186
+.. date: 2017-11-30-20-38-16
+.. nonce: O42bVe
+.. section: Library
+
+io.FileIO.readall() and io.FileIO.read() now release the GIL when getting
+the file size. Fixed hang of all threads with inaccessible NFS server. Patch
+by Nir Soffer.
+
+..
+
+.. bpo: 32101
+.. date: 2017-11-29-00-42-47
+.. nonce: -axD5l
+.. section: Library
+
+Add :attr:`sys.flags.dev_mode` flag
+
+..
+
+.. bpo: 32154
+.. date: 2017-11-28-15-27-10
+.. nonce: kDox7L
+.. section: Library
+
+The ``asyncio.windows_utils.socketpair()`` function has been removed: use
+directly :func:`socket.socketpair` which is available on all platforms since
+Python 3.5 (before, it wasn't available on Windows).
+``asyncio.windows_utils.socketpair()`` was just an alias to
+``socket.socketpair`` on Python 3.5 and newer.
+
+..
+
+.. bpo: 32089
+.. date: 2017-11-27-11-29-34
+.. nonce: 6ydDYv
+.. section: Library
+
+warnings: In development (-X dev) and debug mode (pydebug build), use the
+"default" action for ResourceWarning, rather than the "always" action, in
+the default warnings filters.
+
+..
+
+.. bpo: 32107
+.. date: 2017-11-26-18-48-17
+.. nonce: h2ph2K
+.. section: Library
+
+``uuid.getnode()`` now preferentially returns universally administered MAC
+addresses if available, over locally administered MAC addresses. This makes
+a better guarantee for global uniqueness of UUIDs returned from
+``uuid.uuid1()``. If only locally administered MAC addresses are available,
+the first such one found is returned.
+
+..
+
+.. bpo: 23033
+.. date: 2017-11-26-17-00-52
+.. nonce: YGXRWT
+.. section: Library
+
+Wildcard is now supported in hostname when it is one and only character in
+the left most segment of hostname in second argument of
+:meth:`ssl.match_hostname`. Patch by Mandeep Singh.
+
+..
+
+.. bpo: 12239
+.. date: 2017-11-24-14-07-55
+.. nonce: Nj3A0x
+.. section: Library
+
+Make :meth:`msilib.SummaryInformation.GetProperty` return ``None`` when the
+value of property is ``VT_EMPTY``. Initial patch by Mark Mc Mahon.
+
+..
+
+.. bpo: 28334
+.. date: 2017-11-24-11-50-41
+.. nonce: 3gGGlt
+.. section: Library
+
+Use :func:`os.path.expanduser` to find the ``~/.netrc`` file in
+:class:`netrc.netrc`. If it does not exist, :exc:`FileNotFoundError` is
+raised. Patch by Dimitri Merejkowsky.
+
+..
+
+.. bpo: 32121
+.. date: 2017-11-24-00-59-12
+.. nonce: ePbmwC
+.. section: Library
+
+Made ``tracemalloc.Traceback`` behave more like the traceback module,
+sorting the frames from oldest to most recent. ``Traceback.format()`` now
+accepts negative *limit*, truncating the result to the ``abs(limit)`` oldest
+frames. To get the old behaviour, one can use the new *most_recent_first*
+argument to ``Traceback.format()``. (Patch by Jesse Bakker.)
+
+..
+
+.. bpo: 31325
+.. date: 2017-11-23-22-12-11
+.. nonce: 8jAUxN
+.. section: Library
+
+Fix wrong usage of :func:`collections.namedtuple` in the
+:meth:`RobotFileParser.parse() <urllib.robotparser.RobotFileParser.parse>`
+method.
+Initial patch by Robin Wellner.
+
+..
+
+.. bpo: 12382
+.. date: 2017-11-23-21-47-36
+.. nonce: xWT9k0
+.. section: Library
+
+:func:`msilib.OpenDatabase` now raises a better exception message when it
+couldn't open or create an MSI file. Initial patch by William Tisäter.
+
+..
+
+.. bpo: 19610
+.. date: 2017-11-23-16-15-55
+.. nonce: Dlca2P
+.. section: Library
+
+``setup()`` now warns about invalid types for some fields.
+The ``distutils.dist.Distribution`` class now warns when ``classifiers``,
+``keywords`` and ``platforms`` fields are not specified as a list or a
+string.
+
+..
+
+.. bpo: 32071
+.. date: 2017-11-22-19-52-17
+.. nonce: 4WNhUH
+.. section: Library
+
+Added the ``-k`` command-line option to ``python -m unittest`` to run only
+tests that match the given pattern(s).
+
+..
+
+.. bpo: 10049
+.. date: 2017-11-22-17-21-01
+.. nonce: ttsBqb
+.. section: Library
+
+Added *nullcontext* no-op context manager to contextlib. This provides a
+simpler and faster alternative to ExitStack() when handling optional context
+managers.
+
+..
+
+.. bpo: 28684
+.. date: 2017-11-22-12-54-46
+.. nonce: NLiDKZ
+.. section: Library
+
+The new test.support.skip_unless_bind_unix_socket() decorator is used here
+to skip asyncio tests that fail because the platform lacks a functional
+bind() function for unix domain sockets (as it is the case for non root
+users on the recent Android versions that run now SELinux in enforcing
+mode).
+
+..
+
+.. bpo: 32110
+.. date: 2017-11-22-09-44-15
+.. nonce: VJa9bo
+.. section: Library
+
+``codecs.StreamReader.read(n)`` now returns not more than *n*
+characters/bytes for non-negative *n*. This makes it compatible with
+``read()`` methods of other file-like objects.
+
+..
+
+.. bpo: 27535
+.. date: 2017-11-21-16-05-35
+.. nonce: JLhcNz
+.. section: Library
+
+The warnings module doesn't leak memory anymore in the hidden warnings
+registry for the "ignore" action of warnings filters. warn_explicit()
+function doesn't add the warning key to the registry anymore for the
+"ignore" action.
+
+..
+
+.. bpo: 32088
+.. date: 2017-11-20-15-28-31
+.. nonce: mV-4Nu
+.. section: Library
+
+warnings: When Python is build is debug mode (``Py_DEBUG``),
+:exc:`DeprecationWarning`, :exc:`PendingDeprecationWarning` and
+:exc:`ImportWarning` warnings are now displayed by default.
+
+..
+
+.. bpo: 1647489
+.. date: 2017-11-20-01-29-46
+.. nonce: -ZNNkh
+.. section: Library
+
+Fixed searching regular expression patterns that could match an empty
+string. Non-empty string can now be correctly found after matching an empty
+string.
+
+..
+
+.. bpo: 25054
+.. date: 2017-11-20-01-01-01
+.. nonce: rOlRV6
+.. section: Library
+
+Added support of splitting on a pattern that could match an empty string.
+
+..
+
+.. bpo: 32072
+.. date: 2017-11-18-21-13-52
+.. nonce: nwDV8L
+.. section: Library
+
+Fixed issues with binary plists:
+Fixed saving bytearrays.
+Identical objects will be saved only once.
+Equal references will be load as identical objects.
+Added support for saving and loading recursive data structures.
+
+..
+
+.. bpo: 32069
+.. date: 2017-11-18-17-09-01
+.. nonce: S0wyy4
+.. section: Library
+
+Drop legacy SSL transport from asyncio, ssl.MemoryBIO is always used anyway.
+
+..
+
+.. bpo: 32066
+.. date: 2017-11-17-18-28-53
+.. nonce: OMQFLH
+.. section: Library
+
+asyncio: Support pathlib.Path in create_unix_connection; sock arg should be
+optional
+
+..
+
+.. bpo: 32046
+.. date: 2017-11-16-20-09-45
+.. nonce: 9sGDtw
+.. section: Library
+
+Updates 2to3 to convert from operator.isCallable(obj) to callable(obj).
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 32018
+.. date: 2017-11-16-02-32-41
+.. nonce: YMQ7Q2
+.. section: Library
+
+inspect.signature should follow :pep:`8`, if the parameter has an annotation
+and a default value. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 32025
+.. date: 2017-11-15-20-03-45
+.. nonce: lnIKYT
+.. section: Library
+
+Add time.thread_time() and time.thread_time_ns()
+
+..
+
+.. bpo: 32037
+.. date: 2017-11-15-19-04-22
+.. nonce: r8-5Nk
+.. section: Library
+
+Integers that fit in a signed 32-bit integer will be now pickled with
+protocol 0 using the INT opcode. This will decrease the size of a pickle,
+speed up pickling and unpickling, and make these integers be unpickled as
+int instances in Python 2.
+
+..
+
+.. bpo: 32034
+.. date: 2017-11-15-13-44-28
+.. nonce: uHAOmu
+.. section: Library
+
+Make asyncio.IncompleteReadError and LimitOverrunError pickleable.
+
+..
+
+.. bpo: 32015
+.. date: 2017-11-13-17-48-33
+.. nonce: 4nqRTD
+.. section: Library
+
+Fixed the looping of asyncio in the case of reconnection the socket during
+waiting async read/write from/to the socket.
+
+..
+
+.. bpo: 32011
+.. date: 2017-11-12-20-47-59
+.. nonce: NzVDdZ
+.. section: Library
+
+Restored support of loading marshal files with the TYPE_INT64 code. These
+files can be produced in Python 2.7.
+
+..
+
+.. bpo: 28369
+.. date: 2017-11-10-16-27-26
+.. nonce: IS74nd
+.. section: Library
+
+Enhance add_reader/writer check that socket is not used by some transport.
+Before, only cases when add_reader/writer were called with an int FD were
+supported. Now the check is implemented correctly for all file-like
+objects.
+
+..
+
+.. bpo: 31976
+.. date: 2017-11-09-21-36-32
+.. nonce: EOA7qY
+.. section: Library
+
+Fix race condition when flushing a file is slow, which can cause a segfault
+if closing the file from another thread.
+
+..
+
+.. bpo: 31985
+.. date: 2017-11-08-16-51-52
+.. nonce: dE_fOB
+.. section: Library
+
+Formally deprecated aifc.openfp, sunau.openfp, and wave.openfp. Since change
+7bc817d5ba917528e8bd07ec461c635291e7b06a in 1993, openfp in each of the
+three modules had been pointing to that module's open function as a matter
+of backwards compatibility, though it had been both untested and
+undocumented.
+
+..
+
+.. bpo: 21862
+.. date: 2017-11-07-15-19-52
+.. nonce: RwietE
+.. section: Library
+
+cProfile command line now accepts `-m module_name` as an alternative to
+script path. Patch by Sanyam Khurana.
+
+..
+
+.. bpo: 31970
+.. date: 2017-11-07-14-20-09
+.. nonce: x4EN_9
+.. section: Library
+
+Reduce performance overhead of asyncio debug mode.
+
+..
+
+.. bpo: 31843
+.. date: 2017-11-07-00-37-50
+.. nonce: lM2gkR
+.. section: Library
+
+*database* argument of sqlite3.connect() now accepts a :term:`path-like
+object`, instead of just a string.
+
+..
+
+.. bpo: 31945
+.. date: 2017-11-05-01-17-12
+.. nonce: TLPBtS
+.. section: Library
+
+Add Configurable *blocksize* to ``HTTPConnection`` and ``HTTPSConnection``
+for improved upload throughput. Patch by Nir Soffer.
+
+..
+
+.. bpo: 31943
+.. date: 2017-11-04-19-28-08
+.. nonce: bxw5gM
+.. section: Library
+
+Add a ``cancelled()`` method to :class:`asyncio.Handle`. Patch by Marat
+Sharafutdinov.
+
+..
+
+.. bpo: 9678
+.. date: 2017-11-03-22-05-47
+.. nonce: oD51q6
+.. section: Library
+
+Fixed determining the MAC address in the uuid module:
+Using ifconfig on NetBSD and OpenBSD.
+Using arp on Linux, FreeBSD, NetBSD and OpenBSD.
+Based on patch by Takayuki Shimizukawa.
+
+..
+
+.. bpo: 30057
+.. date: 2017-11-03-19-11-43
+.. nonce: NCaijI
+.. section: Library
+
+Fix potential missed signal in signal.signal().
+
+..
+
+.. bpo: 31933
+.. date: 2017-11-03-08-36-03
+.. nonce: UrtoMP
+.. section: Library
+
+Fix Blake2 params leaf_size and node_offset on big endian platforms. Patch
+by Jack O'Connor.
+
+..
+
+.. bpo: 21423
+.. date: 2017-11-02-22-26-16
+.. nonce: hw5mEh
+.. section: Library
+
+Add an initializer argument to {Process,Thread}PoolExecutor
+
+..
+
+.. bpo: 31927
+.. date: 2017-11-02-18-26-40
+.. nonce: 40K6kp
+.. section: Library
+
+Fixed compilation of the socket module on NetBSD 8. Fixed assertion failure
+or reading arbitrary data when parse a AF_BLUETOOTH address on NetBSD and
+DragonFly BSD.
+
+..
+
+.. bpo: 27666
+.. date: 2017-11-01-18-13-42
+.. nonce: j2zRnF
+.. section: Library
+
+Fixed stack corruption in curses.box() and curses.ungetmouse() when the size
+of types chtype or mmask_t is less than the size of C long. curses.box()
+now accepts characters as arguments. Based on patch by Steve Fink.
+
+..
+
+.. bpo: 31917
+.. date: 2017-11-01-03-28-24
+.. nonce: DYQL0g
+.. section: Library
+
+Add 3 new clock identifiers: :data:`time.CLOCK_BOOTTIME`,
+:data:`time.CLOCK_PROF` and :data:`time.CLOCK_UPTIME`.
+
+..
+
+.. bpo: 31897
+.. date: 2017-10-30-11-04-56
+.. nonce: yjwdEb
+.. section: Library
+
+plistlib now catches more errors when read binary plists and raises
+InvalidFileException instead of unexpected exceptions.
+
+..
+
+.. bpo: 25720
+.. date: 2017-10-29-17-52-40
+.. nonce: vSvb5h
+.. section: Library
+
+Fix the method for checking pad state of curses WINDOW. Patch by Masayuki
+Yamamoto.
+
+..
+
+.. bpo: 31893
+.. date: 2017-10-29-13-51-01
+.. nonce: 8LZKEz
+.. section: Library
+
+Fixed the layout of the kqueue_event structure on OpenBSD and NetBSD. Fixed
+the comparison of the kqueue_event objects.
+
+..
+
+.. bpo: 31891
+.. date: 2017-10-29-11-23-24
+.. nonce: 9kAPha
+.. section: Library
+
+Fixed building the curses module on NetBSD.
+
+..
+
+.. bpo: 31884
+.. date: 2017-10-27
+.. nonce: bjhre9
+.. section: Library
+
+added required constants to subprocess module for setting priority on
+windows
+
+..
+
+.. bpo: 28281
+.. date: 2017-10-26-14-54-38
+.. nonce: 7ZN5FG
+.. section: Library
+
+Remove year (1-9999) limits on the Calendar.weekday() function.
+Patch by Mark Gollahon.
+
+..
+
+.. bpo: 31702
+.. date: 2017-10-24-21-10-44
+.. nonce: SfwJDI
+.. section: Library
+
+crypt.mksalt() now allows to specify the number of rounds for SHA-256 and
+SHA-512 hashing.
+
+..
+
+.. bpo: 30639
+.. date: 2017-10-24-12-24-56
+.. nonce: ptNM9a
+.. section: Library
+
+:func:`inspect.getfile` no longer computes the repr of unknown objects to
+display in an error message, to protect against badly behaved custom reprs.
+
+..
+
+.. bpo: 30768
+.. date: 2017-10-24-12-00-16
+.. nonce: Om8Yj_
+.. section: Library
+
+Fix the pthread+semaphore implementation of PyThread_acquire_lock_timed()
+when called with timeout > 0 and intr_flag=0: recompute the timeout if
+sem_timedwait() is interrupted by a signal (EINTR). See also the :pep:`475`.
+
+..
+
+.. bpo: 31854
+.. date: 2017-10-23
+.. nonce: fh8334f
+.. section: Library
+
+Add ``mmap.ACCESS_DEFAULT`` constant.
+
+..
+
+.. bpo: 31834
+.. date: 2017-10-23-23-27-52
+.. nonce: InwC6O
+.. section: Library
+
+Use optimized code for BLAKE2 only with SSSE3+. The pure SSE2 implementation
+is slower than the pure C reference implementation.
+
+..
+
+.. bpo: 28292
+.. date: 2017-10-23-20-03-36
+.. nonce: 1Gkim2
+.. section: Library
+
+Calendar.itermonthdates() will now consistently raise an exception when a
+date falls outside of the 0001-01-01 through 9999-12-31 range. To support
+applications that cannot tolerate such exceptions, the new methods
+itermonthdays3() and itermonthdays4() are added. The new methods return
+tuples and are not restricted by the range supported by datetime.date.
+
+..
+
+.. bpo: 28564
+.. date: 2017-10-23-16-22-54
+.. nonce: Tx-l-I
+.. section: Library
+
+The shutil.rmtree() function has been sped up to 20--40%. This was done
+using the os.scandir() function.
+
+..
+
+.. bpo: 28416
+.. date: 2017-10-23-12-05-33
+.. nonce: Ldnw8X
+.. section: Library
+
+Instances of pickle.Pickler subclass with the persistent_id() method and
+pickle.Unpickler subclass with the persistent_load() method no longer create
+reference cycles.
+
+..
+
+.. bpo: 31653
+.. date: 2017-10-22-12-43-03
+.. nonce: ttfGvq
+.. section: Library
+
+Don't release the GIL if we can acquire a multiprocessing semaphore
+immediately.
+
+..
+
+.. bpo: 28326
+.. date: 2017-10-22-11-06-02
+.. nonce: rxh7L4
+.. section: Library
+
+Fix multiprocessing.Process when stdout and/or stderr is closed or None.
+
+..
+
+.. bpo: 20825
+.. date: 2017-10-21-09-13-16
+.. nonce: -1MBEy
+.. section: Library
+
+Add `subnet_of` and `superset_of` containment tests to
+:class:`ipaddress.IPv6Network` and :class:`ipaddress.IPv4Network`. Patch by
+Michel Albert and Cheryl Sabella.
+
+..
+
+.. bpo: 31827
+.. date: 2017-10-20-16-12-01
+.. nonce: 7R8s8s
+.. section: Library
+
+Remove the os.stat_float_times() function. It was introduced in Python 2.3
+for backward compatibility with Python 2.2, and was deprecated since Python
+3.1.
+
+..
+
+.. bpo: 31756
+.. date: 2017-10-20-12-57-52
+.. nonce: IxCvGB
+.. section: Library
+
+Add a ``subprocess.Popen(text=False)`` keyword argument to `subprocess`
+functions to be more explicit about when the library should attempt to
+decode outputs into text. Patch by Andrew Clegg.
+
+..
+
+.. bpo: 31819
+.. date: 2017-10-19-20-03-13
+.. nonce: mw2wF9
+.. section: Library
+
+Add AbstractEventLoop.sock_recv_into().
+
+..
+
+.. bpo: 31457
+.. date: 2017-10-18-19-05-17
+.. nonce: KlE6r8
+.. section: Library
+
+If nested log adapters are used, the inner ``process()`` methods are no
+longer omitted.
+
+..
+
+.. bpo: 31457
+.. date: 2017-10-18-16-48-09
+.. nonce: _ovmzp
+.. section: Library
+
+The ``manager`` property on LoggerAdapter objects is now properly settable.
+
+..
+
+.. bpo: 31806
+.. date: 2017-10-17-23-27-03
+.. nonce: TzphdL
+.. section: Library
+
+Fix timeout rounding in time.sleep(), threading.Lock.acquire() and
+socket.socket.settimeout() to round correctly negative timeouts between -1.0
+and 0.0. The functions now block waiting for events as expected. Previously,
+the call was incorrectly non-blocking. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 31803
+.. date: 2017-10-17-22-55-13
+.. nonce: YLL1gJ
+.. section: Library
+
+time.clock() and time.get_clock_info('clock') now emit a DeprecationWarning
+warning.
+
+..
+
+.. bpo: 31800
+.. date: 2017-10-17-20-08-19
+.. nonce: foOSCi
+.. section: Library
+
+Extended support for parsing UTC offsets. strptime '%z' can now parse the
+output generated by datetime.isoformat, including seconds and microseconds.
+
+..
+
+.. bpo: 28603
+.. date: 2017-10-17-12-29-18
+.. nonce: tGuX2C
+.. section: Library
+
+traceback: Fix a TypeError that occurred during printing of exception
+tracebacks when either the current exception or an exception in its
+context/cause chain is unhashable. Patch by Zane Bitter.
+
+..
+
+.. bpo: 30541
+.. date: 2017-10-17-12-04-37
+.. nonce: q3BM6C
+.. section: Library
+
+Add new function to seal a mock and prevent the automatically creation of
+child mocks. Patch by Mario Corchero.
+
+..
+
+.. bpo: 31784
+.. date: 2017-10-13-23-35-47
+.. nonce: 6e57bd
+.. section: Library
+
+Implement the :pep:`564`, add new 6 new functions with nanosecond resolution
+to the :mod:`time` module: :func:`~time.clock_gettime_ns`,
+:func:`~time.clock_settime_ns`, :func:`~time.monotonic_ns`,
+:func:`~time.perf_counter_ns`, :func:`~time.process_time_ns`,
+:func:`~time.time_ns`.
+
+..
+
+.. bpo: 30143
+.. date: 2017-10-12-19-05-54
+.. nonce: 25_hU1
+.. section: Library
+
+2to3 now generates a code that uses abstract collection classes from
+collections.abc rather than collections.
+
+..
+
+.. bpo: 31770
+.. date: 2017-10-12-18-45-38
+.. nonce: GV3MPx
+.. section: Library
+
+Prevent a crash when calling the ``__init__()`` method of a
+``sqlite3.Cursor`` object more than once. Patch by Oren Milman.
+
+..
+
+.. bpo: 31764
+.. date: 2017-10-11-22-18-04
+.. nonce: EMyIkK
+.. section: Library
+
+Prevent a crash in ``sqlite3.Cursor.close()`` in case the ``Cursor`` object
+is uninitialized. Patch by Oren Milman.
+
+..
+
+.. bpo: 31752
+.. date: 2017-10-11-00-45-01
+.. nonce: DhWevN
+.. section: Library
+
+Fix possible crash in timedelta constructor called with custom integers.
+
+..
+
+.. bpo: 31620
+.. date: 2017-10-06-04-35-31
+.. nonce: gksLA1
+.. section: Library
+
+an empty asyncio.Queue now doesn't leak memory when queue.get pollers
+timeout
+
+..
+
+.. bpo: 31690
+.. date: 2017-10-05-15-14-46
+.. nonce: f0XteV
+.. section: Library
+
+Allow the flags re.ASCII, re.LOCALE, and re.UNICODE to be used as group
+flags for regular expressions.
+
+..
+
+.. bpo: 30349
+.. date: 2017-10-05-12-45-29
+.. nonce: 6zKJsF
+.. section: Library
+
+FutureWarning is now emitted if a regular expression contains character set
+constructs that will change semantically in the future (nested sets and set
+operations).
+
+..
+
+.. bpo: 31664
+.. date: 2017-10-04-20-36-28
+.. nonce: 4VDUzo
+.. section: Library
+
+Added support for the Blowfish hashing in the crypt module.
+
+..
+
+.. bpo: 31632
+.. date: 2017-10-04-11-37-14
+.. nonce: LiOC3C
+.. section: Library
+
+Fix method set_protocol() of class _SSLProtocolTransport in asyncio module.
+This method was previously modifying a wrong reference to the protocol.
+
+..
+
+.. bpo: 15037
+.. date: 2017-09-29-19-19-36
+.. nonce: ykimLK
+.. section: Library
+
+Added a workaround for getkey() in curses for ncurses 5.7 and earlier.
+
+..
+
+.. bpo: 31307
+.. date: 2017-09-07-12-50-28
+.. nonce: AVBiNY
+.. section: Library
+
+Allow use of bytes objects for arguments to
+:meth:`configparser.ConfigParser.read`. Patch by Vincent Michel.
+
+..
+
+.. bpo: 31334
+.. date: 2017-09-04-00-22-31
+.. nonce: 9WYRfi
+.. section: Library
+
+Fix ``poll.poll([timeout])`` in the ``select`` module for arbitrary negative
+timeouts on all OSes where it can only be a non-negative integer or -1.
+Patch by Riccardo Coccioli.
+
+..
+
+.. bpo: 31310
+.. date: 2017-08-30-18-23-54
+.. nonce: 7D1UNt
+.. section: Library
+
+multiprocessing's semaphore tracker should be launched again if crashed.
+
+..
+
+.. bpo: 31308
+.. date: 2017-08-30-17-59-36
+.. nonce: KbexyC
+.. section: Library
+
+Make multiprocessing's forkserver process immune to Ctrl-C and other user
+interruptions. If it crashes, restart it when necessary.
+
+..
+
+.. bpo: 31245
+.. date: 2017-08-22-11-05-35
+.. nonce: AniZuz
+.. section: Library
+
+Added support for AF_UNIX socket in asyncio `create_datagram_endpoint`.
+
+..
+
+.. bpo: 30553
+.. date: 2017-07-05-14-48-26
+.. nonce: Oupsxo
+.. section: Library
+
+Add HTTP/2 status code 421 (Misdirected Request) to
+:class:`http.HTTPStatus`. Patch by Vitor Pereira.
+
+..
+
+.. bpo: 32105
+.. date: 2017-11-21-10-54-16
+.. nonce: 91mhWm
+.. section: Documentation
+
+Added asyncio.BaseEventLoop.connect_accepted_socket versionadded marker.
+
+..
+
+.. bpo: 31380
+.. date: 2017-12-04-23-19-16
+.. nonce: VlMmHW
+.. section: Tests
+
+Skip test_httpservers test_undecodable_file on macOS: fails on APFS.
+
+..
+
+.. bpo: 31705
+.. date: 2017-11-30-12-27-10
+.. nonce: yULW7O
+.. section: Tests
+
+Skip test_socket.test_sha256() on Linux kernel older than 4.5. The test
+fails with ENOKEY on kernel 3.10 (on ppc64le). A fix was merged into the
+kernel 4.5.
+
+..
+
+.. bpo: 32138
+.. date: 2017-11-27-16-18-58
+.. nonce: QsTvf-
+.. section: Tests
+
+Skip on Android test_faulthandler tests that raise SIGSEGV and remove the
+test.support.requires_android_level decorator.
+
+..
+
+.. bpo: 32136
+.. date: 2017-11-26-17-11-27
+.. nonce: Y11luJ
+.. section: Tests
+
+The runtime embedding tests have been split out from
+``Lib/test/test_capi.py`` into a new ``Lib/test/test_embed.py`` file.
+
+..
+
+.. bpo: 28668
+.. date: 2017-11-25-14-53-29
+.. nonce: Y1G6pA
+.. section: Tests
+
+test.support.requires_multiprocessing_queue is removed. Skip tests with
+test.support.import_module('multiprocessing.synchronize') instead when the
+semaphore implementation is broken or missing.
+
+..
+
+.. bpo: 32126
+.. date: 2017-11-24-18-15-12
+.. nonce: PLmNLn
+.. section: Tests
+
+Skip test_get_event_loop_new_process in test.test_asyncio.test_events when
+sem_open() is not functional.
+
+..
+
+.. bpo: 31174
+.. date: 2017-10-24-11-36-10
+.. nonce: xCvXcr
+.. section: Tests
+
+Fix test_tools.test_unparse: DirectoryTestCase now stores the names sample
+to always test the same files. It prevents false alarms when hunting
+reference leaks.
+
+..
+
+.. bpo: 28538
+.. date: 2017-11-21-17-27-59
+.. nonce: DsNBS7
+.. section: Build
+
+Revert the previous changes, the if_nameindex structure is defined by
+Unified Headers.
+
+..
+
+.. bpo: 28762
+.. date: 2017-11-21-17-12-24
+.. nonce: R6uu8w
+.. section: Build
+
+Revert the last commit, the F_LOCK macro is defined by Android Unified
+Headers.
+
+..
+
+.. bpo: 29040
+.. date: 2017-11-21-16-56-24
+.. nonce: 14lCSr
+.. section: Build
+
+Support building Android with Unified Headers. The first NDK release to
+support Unified Headers is android-ndk-r14.
+
+..
+
+.. bpo: 32059
+.. date: 2017-11-18-11-19-28
+.. nonce: a0Hxgp
+.. section: Build
+
+``detect_modules()`` in ``setup.py`` now also searches the sysroot paths
+when cross-compiling.
+
+..
+
+.. bpo: 31957
+.. date: 2017-11-06-11-53-39
+.. nonce: S_1jFK
+.. section: Build
+
+Fixes Windows SDK version detection when building for Windows.
+
+..
+
+.. bpo: 31609
+.. date: 2017-11-04-15-35-08
+.. nonce: k7_nBR
+.. section: Build
+
+Fixes quotes in PCbuild/clean.bat
+
+..
+
+.. bpo: 31934
+.. date: 2017-11-03-15-17-50
+.. nonce: 8bUlpv
+.. section: Build
+
+Abort the build when building out of a not clean source tree.
+
+..
+
+.. bpo: 31926
+.. date: 2017-11-03-10-07-14
+.. nonce: 57wE98
+.. section: Build
+
+Fixed Argument Clinic sometimes causing compilation errors when there was
+more than one function and/or method in a .c file with the same name.
+
+..
+
+.. bpo: 28791
+.. date: 2017-11-02-20-30-57
+.. nonce: VaE3o8
+.. section: Build
+
+Update Windows builds to use SQLite 3.21.0.
+
+..
+
+.. bpo: 28791
+.. date: 2017-11-02-20-13-46
+.. nonce: STt3jL
+.. section: Build
+
+Update OS X installer to use SQLite 3.21.0.
+
+..
+
+.. bpo: 28643
+.. date: 2017-11-01-14-16-27
+.. nonce: 9iPKJy
+.. section: Build
+
+Record profile-opt build progress with stamp files.
+
+..
+
+.. bpo: 31866
+.. date: 2017-10-24-23-21-13
+.. nonce: MkNO66
+.. section: Build
+
+Finish removing support for AtheOS.
+
+..
+
+.. bpo: 1102
+.. date: 2017-11-19-09-46-27
+.. nonce: NY-g1F
+.. section: Windows
+
+Return ``None`` when ``View.Fetch()`` returns ``ERROR_NO_MORE_ITEMS``
+instead of raising ``MSIError``.
+Initial patch by Anthony Tuininga.
+
+..
+
+.. bpo: 31944
+.. date: 2017-11-04-15-29-47
+.. nonce: 0Bx8tZ
+.. section: Windows
+
+Fixes Modify button in Apps and Features dialog.
+
+..
+
+.. bpo: 20486
+.. date: 2017-10-26-23-02-57
+.. nonce: 3IdsZ1
+.. section: Windows
+
+Implement the ``Database.Close()`` method to help closing MSI database
+objects.
+
+..
+
+.. bpo: 31857
+.. date: 2017-10-23-18-35-50
+.. nonce: YwhEvc
+.. section: Windows
+
+Make the behavior of USE_STACKCHECK deterministic in a multi-threaded
+environment.
+
+..
+
+.. bpo: 31392
+.. date: 2017-12-04-21-57-43
+.. nonce: f8huBC
+.. section: macOS
+
+Update macOS installer to use OpenSSL 1.0.2m
+
+..
+
+.. bpo: 32207
+.. date: 2017-12-04-15-04-43
+.. nonce: IzyAJo
+.. section: IDLE
+
+Improve tk event exception tracebacks in IDLE. When tk event handling is
+driven by IDLE's run loop, a confusing and distracting queue.EMPTY traceback
+context is no longer added to tk event exception tracebacks. The traceback
+is now the same as when event handling is driven by user code. Patch based
+on a suggestion by Serhiy Storchaka.
+
+..
+
+.. bpo: 32164
+.. date: 2017-11-28-21-47-15
+.. nonce: 2T2Na8
+.. section: IDLE
+
+Delete unused file idlelib/tabbedpages.py. Use of TabbedPageSet in
+configdialog was replaced by ttk.Notebook.
+
+..
+
+.. bpo: 32100
+.. date: 2017-11-21-08-26-08
+.. nonce: P43qx2
+.. section: IDLE
+
+IDLE: Fix old and new bugs in pathbrowser; improve tests. Patch mostly by
+Cheryl Sabella.
+
+..
+
+.. bpo: 31858
+.. date: 2017-10-26-20-20-19
+.. nonce: VuSA_e
+.. section: IDLE
+
+IDLE -- Restrict shell prompt manipulation to the shell. Editor and output
+windows only see an empty last prompt line. This simplifies the code and
+fixes a minor bug when newline is inserted. Sys.ps1, if present, is read on
+Shell start-up, but is not set or changed.
+
+..
+
+.. bpo: 31860
+.. date: 2017-10-24-16-21-50
+.. nonce: gECuWx
+.. section: IDLE
+
+The font sample in the IDLE configuration dialog is now editable. Changes
+persist while IDLE remains open
+
+..
+
+.. bpo: 31836
+.. date: 2017-10-21-15-41-53
+.. nonce: fheLME
+.. section: IDLE
+
+Test_code_module now passes if run after test_idle, which sets ps1.
+The code module uses sys.ps1 if present or sets it to '>>> ' if not.
+Test_code_module now properly tests both behaviors. Ditto for ps2.
+
+..
+
+.. bpo: 28603
+.. date: 2017-10-17-13-26-13
+.. nonce: TMEQfp
+.. section: IDLE
+
+Fix a TypeError that caused a shell restart when printing a traceback that
+includes an exception that is unhashable. Patch by Zane Bitter.
+
+..
+
+.. bpo: 13802
+.. date: 2017-10-12-00-51-29
+.. nonce: VwjZRD
+.. section: IDLE
+
+Use non-Latin characters in the IDLE's Font settings sample. Even if one
+selects a font that defines a limited subset of the unicode Basic
+Multilingual Plane, tcl/tk will use other fonts that define a character. The
+expanded example give users of non-Latin characters a better idea of what
+they might see in IDLE's shell and editors.
+To make room for the expanded sample, frames on the Font tab are
+re-arranged. The Font/Tabs help explains a bit about the additions.
+
+..
+
+.. bpo: 32159
+.. date: 2017-11-28-21-24-41
+.. nonce: RSl4QK
+.. section: Tools/Demos
+
+Remove CVS and Subversion tools: remove svneol.py and treesync.py scripts.
+CPython migrated from CVS to Subversion, to Mercurial, and then to Git. CVS
+and Subversion are no longer used to develop CPython.
+
+..
+
+.. bpo: 30722
+.. date: 2017-10-23-19-45-52
+.. nonce: ioRlAu
+.. section: Tools/Demos
+
+Make redemo work with Python 3.6 and newer versions.
+Also, remove the ``LOCALE`` option since it doesn't work with string
+patterns in Python 3.
+Patch by Christoph Sarnowski.
+
+..
+
+.. bpo: 20891
+.. date: 2017-11-30-18-13-45
+.. nonce: wBnMdF
+.. section: C API
+
+Fix PyGILState_Ensure(). When PyGILState_Ensure() is called in a non-Python
+thread before PyEval_InitThreads(), only call PyEval_InitThreads() after
+calling PyThreadState_New() to fix a crash.
+
+..
+
+.. bpo: 32125
+.. date: 2017-11-24-21-25-43
+.. nonce: K8zWgn
+.. section: C API
+
+The ``Py_UseClassExceptionsFlag`` flag has been removed. It was deprecated
+and wasn't used anymore since Python 2.0.
+
+..
+
+.. bpo: 25612
+.. date: 2017-10-22-13-12-28
+.. nonce: 1jnWKT
+.. section: C API
+
+Move the current exception state from the frame object to the co-routine.
+This simplifies the interpreter and fixes a couple of obscure bugs caused by
+having swap exception state when entering or exiting a generator.
+
+..
+
+.. bpo: 23699
+.. date: 2017-10-19-15-27-04
+.. nonce: -noVVc
+.. section: C API
+
+Add Py_RETURN_RICHCOMPARE macro to reduce boilerplate code in rich
+comparison functions.
+
+..
+
+.. bpo: 30697
+.. date: 2017-06-30-11-58-01
+.. nonce: Q3T_8n
+.. section: C API
+
+The `PyExc_RecursionErrorInst` singleton is removed and
+`PyErr_NormalizeException()` does not use it anymore. This singleton is
+persistent and its members being never cleared may cause a segfault during
+finalization of the interpreter. See also issue #22898.
--- /dev/null
+.. bpo: 31975
+.. date: 2018-01-05-20-54-27
+.. nonce: AmftlU
+.. release date: 2018-01-08
+.. section: Core and Builtins
+
+The default warning filter list now starts with a
+"default::DeprecationWarning:__main__" entry, so deprecation warnings are
+once again shown by default in single-file scripts and at the interactive
+prompt.
+
+..
+
+.. bpo: 32226
+.. date: 2018-01-04-15-06-15
+.. nonce: 7cAvRG
+.. section: Core and Builtins
+
+``__class_getitem__`` is now an automatic class method.
+
+..
+
+.. bpo: 32399
+.. date: 2017-12-22-13-38-17
+.. nonce: wlH12z
+.. section: Core and Builtins
+
+Add AIX uuid library support for RFC4122 using uuid_create() in libc.a
+
+..
+
+.. bpo: 32390
+.. date: 2017-12-22-13-28-07
+.. nonce: QPj083
+.. section: Core and Builtins
+
+Fix the compilation failure on AIX after the f_fsid field has been added to
+the object returned by os.statvfs() (issue #32143). Original patch by
+Michael Felt.
+
+..
+
+.. bpo: 32379
+.. date: 2017-12-19-21-14-41
+.. nonce: B7mOmI
+.. section: Core and Builtins
+
+Make MRO computation faster when a class inherits from a single base.
+
+..
+
+.. bpo: 32259
+.. date: 2017-12-16-14-30-21
+.. nonce: GoOJiX
+.. section: Core and Builtins
+
+The error message of a TypeError raised when unpack non-iterable is now more
+specific.
+
+..
+
+.. bpo: 27169
+.. date: 2017-12-15-11-50-06
+.. nonce: VO84fQ
+.. section: Core and Builtins
+
+The ``__debug__`` constant is now optimized out at compile time. This fixes
+also bpo-22091.
+
+..
+
+.. bpo: 32329
+.. date: 2017-12-15-00-13-04
+.. nonce: q47IN2
+.. section: Core and Builtins
+
+The :option:`-R` option now turns on hash randomization when the
+:envvar:`PYTHONHASHSEED` environment variable is set to ``0``. Previously,
+the option was ignored. Moreover, ``sys.flags.hash_randomization`` is now
+properly set to 0 when hash randomization is turned off by
+``PYTHONHASHSEED=0``.
+
+..
+
+.. bpo: 30416
+.. date: 2017-12-14-11-48-19
+.. nonce: hlHo_9
+.. section: Core and Builtins
+
+The optimizer is now protected from spending much time doing complex
+calculations and consuming much memory for creating large constants in
+constant folding. Increased limits for constants that can be produced in
+constant folding.
+
+..
+
+.. bpo: 32282
+.. date: 2017-12-12-14-02-28
+.. nonce: xFVMTn
+.. section: Core and Builtins
+
+Fix an unnecessary ifdef in the include of VersionHelpers.h in socketmodule
+on Windows.
+
+..
+
+.. bpo: 30579
+.. date: 2017-12-11-01-52-42
+.. nonce: X6cEzf
+.. section: Core and Builtins
+
+Implement TracebackType.__new__ to allow Python-level creation of traceback
+objects, and make TracebackType.tb_next mutable.
+
+..
+
+.. bpo: 32260
+.. date: 2017-12-09-11-03-51
+.. nonce: 1DAO-p
+.. section: Core and Builtins
+
+Don't byte swap the input keys to the SipHash algorithm on big-endian
+platforms. This should ensure siphash gives consistent results across
+platforms.
+
+..
+
+.. bpo: 31506
+.. date: 2017-12-07-23-44-29
+.. nonce: j1U2fU
+.. section: Core and Builtins
+
+Improve the error message logic for object.__new__ and object.__init__.
+Patch by Sanyam Khurana.
+
+..
+
+.. bpo: 20361
+.. date: 2017-12-07-17-22-30
+.. nonce: zQUmbi
+.. section: Core and Builtins
+
+``-b`` and ``-bb`` now inject ``'default::BytesWarning'`` and
+``error::BytesWarning`` entries into ``sys.warnoptions``, ensuring that they
+take precedence over any other warning filters configured via the ``-W``
+option or the ``PYTHONWARNINGS`` environment variable.
+
+..
+
+.. bpo: 32230
+.. date: 2017-12-06-20-18-34
+.. nonce: PgGQaB
+.. section: Core and Builtins
+
+`-X dev` now injects a ``'default'`` entry into sys.warnoptions, ensuring
+that it behaves identically to actually passing ``-Wdefault`` at the command
+line.
+
+..
+
+.. bpo: 29240
+.. date: 2017-12-05-23-10-58
+.. nonce: qpJP5l
+.. section: Core and Builtins
+
+Add a new UTF-8 mode: implementation of the :pep:`540`.
+
+..
+
+.. bpo: 32226
+.. date: 2017-12-05-21-42-58
+.. nonce: G8fqb6
+.. section: Core and Builtins
+
+:pep:`560`: Add support for ``__mro_entries__`` and ``__class_getitem__``. Implemented
+by Ivan Levkivskyi.
+
+..
+
+.. bpo: 32225
+.. date: 2017-12-05-21-33-47
+.. nonce: ucKjvw
+.. section: Core and Builtins
+
+:pep:`562`: Add support for module ``__getattr__`` and ``__dir__``. Implemented
+by Ivan Levkivskyi.
+
+..
+
+.. bpo: 31901
+.. date: 2017-11-28-15-04-14
+.. nonce: mDeCLK
+.. section: Core and Builtins
+
+The `atexit` module now has its callback stored per interpreter.
+
+..
+
+.. bpo: 31650
+.. date: 2017-11-26-14-38-44
+.. nonce: JWf_Im
+.. section: Core and Builtins
+
+Implement :pep:`552` (Deterministic pycs). Python now supports invalidating
+bytecode cache files bashed on a source content hash rather than source
+last-modified time.
+
+..
+
+.. bpo: 29469
+.. date: 2017-07-26-00-20-15
+.. nonce: potmyI
+.. section: Core and Builtins
+
+Move constant folding from bytecode layer to AST layer. Original patch by
+Eugene Toder.
+
+..
+
+.. bpo: 32506
+.. date: 2018-01-07-11-32-42
+.. nonce: MaT-zU
+.. section: Library
+
+Now that dict is defined as keeping insertion order, drop OrderedDict and
+just use plain dict.
+
+..
+
+.. bpo: 32279
+.. date: 2018-01-06-16-50-11
+.. nonce: 1xOpU8
+.. section: Library
+
+Add params to dataclasses.make_dataclasses(): init, repr, eq, order, hash,
+and frozen. Pass them through to dataclass().
+
+..
+
+.. bpo: 32278
+.. date: 2018-01-06-15-15-34
+.. nonce: bGnGc0
+.. section: Library
+
+Make type information optional on dataclasses.make_dataclass(). If omitted,
+the string 'typing.Any' is used.
+
+..
+
+.. bpo: 32499
+.. date: 2018-01-06-10-54-16
+.. nonce: koyY-4
+.. section: Library
+
+Add dataclasses.is_dataclass(obj), which returns True if obj is a dataclass
+or an instance of one.
+
+..
+
+.. bpo: 32468
+.. date: 2017-12-31-20-32-58
+.. nonce: YBs__0
+.. section: Library
+
+Improve frame repr() to mention filename, code name and current line number.
+
+..
+
+.. bpo: 23749
+.. date: 2017-12-29-00-44-42
+.. nonce: QL1Cxd
+.. section: Library
+
+asyncio: Implement loop.start_tls()
+
+..
+
+.. bpo: 32441
+.. date: 2017-12-28-21-30-40
+.. nonce: LqlboJ
+.. section: Library
+
+Return the new file descriptor (i.e., the second argument) from ``os.dup2``.
+Previously, ``None`` was always returned.
+
+..
+
+.. bpo: 32422
+.. date: 2017-12-25-20-22-47
+.. nonce: 5H3Wq2
+.. section: Library
+
+``functools.lru_cache`` uses less memory (3 words for each cached key) and
+takes about 1/3 time for cyclic GC.
+
+..
+
+.. bpo: 31721
+.. date: 2017-12-25-11-09-46
+.. nonce: 5gM972
+.. section: Library
+
+Prevent Python crash from happening when Future._log_traceback is set to
+True manually. Now it can only be set to False, or a ValueError is raised.
+
+..
+
+.. bpo: 32415
+.. date: 2017-12-23-12-45-00
+.. nonce: YufXTU
+.. section: Library
+
+asyncio: Add Task.get_loop() and Future.get_loop()
+
+..
+
+.. bpo: 26133
+.. date: 2017-12-21-11-08-42
+.. nonce: mt81QV
+.. section: Library
+
+Don't unsubscribe signals in asyncio UNIX event loop on interpreter
+shutdown.
+
+..
+
+.. bpo: 32363
+.. date: 2017-12-19-00-37-28
+.. nonce: YTeGU0
+.. section: Library
+
+Make asyncio.Task.set_exception() and set_result() raise
+NotImplementedError. Task._step() and Future.__await__() raise proper
+exceptions when they are in an invalid state, instead of raising an
+AssertionError.
+
+..
+
+.. bpo: 32357
+.. date: 2017-12-18-00-36-41
+.. nonce: t1F3sn
+.. section: Library
+
+Optimize asyncio.iscoroutine() and loop.create_task() for non-native
+coroutines (e.g. async/await compiled with Cython).
+'loop.create_task(python_coroutine)' used to be 20% faster than
+'loop.create_task(cython_coroutine)'. Now, the latter is as fast.
+
+..
+
+.. bpo: 32356
+.. date: 2017-12-17-22-50-51
+.. nonce: roZJpA
+.. section: Library
+
+asyncio.transport.resume_reading() and pause_reading() are now idempotent.
+New transport.is_reading() method is added.
+
+..
+
+.. bpo: 32355
+.. date: 2017-12-17-21-42-24
+.. nonce: tbaTWA
+.. section: Library
+
+Optimize asyncio.gather(); now up to 15% faster.
+
+..
+
+.. bpo: 32351
+.. date: 2017-12-17-14-23-23
+.. nonce: 95fh2K
+.. section: Library
+
+Use fastpath in asyncio.sleep if delay<0 (2x boost)
+
+..
+
+.. bpo: 32348
+.. date: 2017-12-16-18-50-57
+.. nonce: 5j__he
+.. section: Library
+
+Optimize asyncio.Future schedule/add/remove callback. The optimization
+shows 3-6% performance improvements of async/await code.
+
+..
+
+.. bpo: 32331
+.. date: 2017-12-15-23-48-43
+.. nonce: fIg1Uc
+.. section: Library
+
+Fix socket.settimeout() and socket.setblocking() to keep socket.type as is.
+Fix socket.socket() constructor to reset any bit flags applied to socket's
+type. This change only affects OSes that have SOCK_NONBLOCK and/or
+SOCK_CLOEXEC.
+
+..
+
+.. bpo: 32248
+.. date: 2017-12-15-15-34-12
+.. nonce: zmO8G2
+.. section: Library
+
+Add :class:`importlib.abc.ResourceReader` as an ABC for loaders to provide a
+unified API for reading resources contained within packages. Also add
+:mod:`importlib.resources` as the port of ``importlib_resources``.
+
+..
+
+.. bpo: 32311
+.. date: 2017-12-14-17-28-54
+.. nonce: DL5Ytn
+.. section: Library
+
+Implement asyncio.create_task(coro) shortcut
+
+..
+
+.. bpo: 32327
+.. date: 2017-12-14-16-00-25
+.. nonce: bbkSxA
+.. section: Library
+
+Convert asyncio functions that were documented as coroutines to coroutines.
+Affected functions: loop.sock_sendall, loop.sock_recv, loop.sock_accept,
+loop.getaddrinfo, loop.getnameinfo.
+
+..
+
+.. bpo: 32323
+.. date: 2017-12-14-10-10-10
+.. nonce: ideco
+.. section: Library
+
+:func:`urllib.parse.urlsplit()` does not convert zone-id (scope) to lower
+case for scoped IPv6 addresses in hostnames now.
+
+..
+
+.. bpo: 32302
+.. date: 2017-12-13-22-38-08
+.. nonce: othtTr
+.. section: Library
+
+Fix bdist_wininst of distutils for CRT v142: it binary compatible with CRT
+v140.
+
+..
+
+.. bpo: 29711
+.. date: 2017-12-13-22-10-36
+.. nonce: hJjghA
+.. section: Library
+
+Fix ``stop_serving`` in asyncio proactor loop kill all listening servers
+
+..
+
+.. bpo: 32308
+.. date: 2017-12-13-20-31-30
+.. nonce: CUbsb2
+.. section: Library
+
+:func:`re.sub()` now replaces empty matches adjacent to a previous non-empty
+match.
+
+..
+
+.. bpo: 29970
+.. date: 2017-12-13-19-02-38
+.. nonce: uxVOpk
+.. section: Library
+
+Abort asyncio SSLProtocol connection if handshake not complete within 10 seconds.
+
+..
+
+.. bpo: 32314
+.. date: 2017-12-13-16-47-38
+.. nonce: W4_U2j
+.. section: Library
+
+Implement asyncio.run().
+
+..
+
+.. bpo: 17852
+.. date: 2017-12-13-00-00-37
+.. nonce: Q8BP8N
+.. section: Library
+
+Revert incorrect fix based on misunderstanding of _Py_PyAtExit() semantics.
+
+..
+
+.. bpo: 32296
+.. date: 2017-12-12-18-01-01
+.. nonce: bwscHz
+.. section: Library
+
+Implement asyncio._get_running_loop() and get_event_loop() in C. This makes
+them 4x faster.
+
+..
+
+.. bpo: 32250
+.. date: 2017-12-12-16-58-20
+.. nonce: UljTa0
+.. section: Library
+
+Implement ``asyncio.current_task()`` and ``asyncio.all_tasks()``. Add
+helpers intended to be used by alternative task implementations:
+``asyncio._register_task``, ``asyncio._enter_task``, ``asyncio._leave_task``
+and ``asyncio._unregister_task``. Deprecate ``asyncio.Task.current_task()``
+and ``asyncio.Task.all_tasks()``.
+
+..
+
+.. bpo: 32255
+.. date: 2017-12-12-07-29-06
+.. nonce: 2bfNmM
+.. section: Library
+
+A single empty field is now always quoted when written into a CSV file. This
+allows to distinguish an empty row from a row consisting of a single empty
+field. Patch by Licht Takeuchi.
+
+..
+
+.. bpo: 32277
+.. date: 2017-12-11-09-53-14
+.. nonce: jkKiVC
+.. section: Library
+
+Raise ``NotImplementedError`` instead of ``SystemError`` on platforms where
+``chmod(..., follow_symlinks=False)`` is not supported. Patch by Anthony
+Sottile.
+
+..
+
+.. bpo: 30050
+.. date: 2017-12-10-23-44-56
+.. nonce: 4SZ3lY
+.. section: Library
+
+New argument warn_on_full_buffer to signal.set_wakeup_fd lets you control
+whether Python prints a warning on stderr when the wakeup fd buffer
+overflows.
+
+..
+
+.. bpo: 29137
+.. date: 2017-12-10-21-19-14
+.. nonce: CFcON1
+.. section: Library
+
+The ``fpectl`` library has been removed. It was never enabled by default,
+never worked correctly on x86-64, and it changed the Python ABI in ways that
+caused unexpected breakage of C extensions.
+
+..
+
+.. bpo: 32273
+.. date: 2017-12-10-19-14-55
+.. nonce: 5KKlCv
+.. section: Library
+
+Move asyncio.test_utils to test.test_asyncio.
+
+..
+
+.. bpo: 32272
+.. date: 2017-12-10-18-59-13
+.. nonce: Mu84Am
+.. section: Library
+
+Remove asyncio.async() function.
+
+..
+
+.. bpo: 32269
+.. date: 2017-12-10-12-30-13
+.. nonce: Q85pKj
+.. section: Library
+
+Add asyncio.get_running_loop() function.
+
+..
+
+.. bpo: 32265
+.. date: 2017-12-10-00-57-51
+.. nonce: kELtTE
+.. section: Library
+
+All class and static methods of builtin types now are correctly classified
+by inspect.classify_class_attrs() and grouped in pydoc ouput. Added
+types.ClassMethodDescriptorType for unbound class methods of builtin types.
+
+..
+
+.. bpo: 32253
+.. date: 2017-12-09-11-30-35
+.. nonce: TQHSYF
+.. section: Library
+
+Deprecate ``yield from lock``, ``await lock``, ``with (yield from lock)``
+and ``with await lock`` for asyncio synchronization primitives.
+
+..
+
+.. bpo: 22589
+.. date: 2017-12-08-15-09-41
+.. nonce: 8ouqI6
+.. section: Library
+
+Changed MIME type of .bmp from 'image/x-ms-bmp' to 'image/bmp'
+
+..
+
+.. bpo: 32193
+.. date: 2017-12-08-11-02-26
+.. nonce: NJe_TQ
+.. section: Library
+
+Convert asyncio to use *async/await* syntax. Old styled ``yield from`` is
+still supported too.
+
+..
+
+.. bpo: 32206
+.. date: 2017-12-07-13-14-40
+.. nonce: obm4OM
+.. section: Library
+
+Add support to run modules with pdb
+
+..
+
+.. bpo: 32227
+.. date: 2017-12-05-13-25-15
+.. nonce: 3vnWFS
+.. section: Library
+
+``functools.singledispatch`` now supports registering implementations using
+type annotations.
+
+..
+
+.. bpo: 15873
+.. date: 2017-12-04-17-41-40
+.. nonce: -T4TRK
+.. section: Library
+
+Added new alternate constructors :meth:`datetime.datetime.fromisoformat`,
+:meth:`datetime.time.fromisoformat` and :meth:`datetime.date.fromisoformat`
+as the inverse operation of each classes's respective ``isoformat`` methods.
+
+..
+
+.. bpo: 32199
+.. date: 2017-12-04-12-23-26
+.. nonce: nGof4v
+.. section: Library
+
+The getnode() ip getter now uses 'ip link' instead of 'ip link list'.
+
+..
+
+.. bpo: 32143
+.. date: 2017-11-26-17-28-26
+.. nonce: o7YdXL
+.. section: Library
+
+os.statvfs() includes the f_fsid field from statvfs(2)
+
+..
+
+.. bpo: 26439
+.. date: 2017-11-24-08-35-43
+.. nonce: IC45_f
+.. section: Library
+
+Fix ctypes.util.find_library() for AIX by implementing
+ctypes._aix.find_library() Patch by: Michael Felt
+
+..
+
+.. bpo: 31993
+.. date: 2017-11-10-00-05-08
+.. nonce: -OMNg8
+.. section: Library
+
+The pickler now uses less memory when serializing large bytes and str
+objects into a file. Pickles created with protocol 4 will require less
+memory for unpickling large bytes and str objects.
+
+..
+
+.. bpo: 27456
+.. date: 2017-11-02-11-57-41
+.. nonce: snzyTC
+.. section: Library
+
+Ensure TCP_NODELAY is set on Linux. Tests by Victor Stinner.
+
+..
+
+.. bpo: 31778
+.. date: 2017-10-18-17-29-30
+.. nonce: B6vAkP
+.. section: Library
+
+ast.literal_eval() is now more strict. Addition and subtraction of arbitrary
+numbers no longer allowed.
+
+..
+
+.. bpo: 31802
+.. date: 2017-10-17-14-52-14
+.. nonce: sYj2Zv
+.. section: Library
+
+Importing native path module (``posixpath``, ``ntpath``) now works even if
+the ``os`` module still is not imported.
+
+..
+
+.. bpo: 30241
+.. date: 2017-10-10-18-56-46
+.. nonce: F_go20
+.. section: Library
+
+Add contextlib.AbstractAsyncContextManager. Patch by Jelle Zijlstra.
+
+..
+
+.. bpo: 31699
+.. date: 2017-10-05-11-06-32
+.. nonce: MF47Y6
+.. section: Library
+
+Fix deadlocks in :class:`concurrent.futures.ProcessPoolExecutor` when task
+arguments or results cause pickling or unpickling errors. This should make
+sure that calls to the :class:`ProcessPoolExecutor` API always eventually
+return.
+
+..
+
+.. bpo: 15216
+.. date: 2017-09-16-02-56-33
+.. nonce: lqXCTT
+.. section: Library
+
+``TextIOWrapper.reconfigure()`` supports changing *encoding*, *errors*, and
+*newline*.
+
+..
+
+.. bpo: 32418
+.. date: 2017-12-24-17-29-37
+.. nonce: eZe-ID
+.. section: Documentation
+
+Add get_loop() method to Server and AbstractServer classes.
+
+..
+
+.. bpo: 32252
+.. date: 2017-12-11-13-31-33
+.. nonce: YnFw7J
+.. section: Tests
+
+Fix faulthandler_suppress_crash_report() used to prevent core dump files
+when testing crashes. getrlimit() returns zero on success.
+
+..
+
+.. bpo: 32002
+.. date: 2017-11-11-16-35-18
+.. nonce: itDxIo
+.. section: Tests
+
+Adjust C locale coercion testing for the empty locale and POSIX locale cases
+to more readily adjust to platform dependent behaviour.
+
+..
+
+.. bpo: 19764
+.. date: 2017-08-18-18-00-24
+.. nonce: ODpc9y
+.. section: Windows
+
+Implement support for `subprocess.Popen(close_fds=True)` on Windows. Patch
+by Segev Finer.
+
+..
+
+.. bpo: 24960
+.. date: 2017-12-22-09-25-51
+.. nonce: TGdAgO
+.. section: Tools/Demos
+
+2to3 and lib2to3 can now read pickled grammar files using pkgutil.get_data()
+rather than probing the filesystem. This lets 2to3 and lib2to3 work when run
+from a zipfile.
+
+..
+
+.. bpo: 32030
+.. date: 2017-12-20-23-22-32
+.. nonce: d1dcwh
+.. section: C API
+
+Py_Initialize() doesn't reset the memory allocators to default if the
+``PYTHONMALLOC`` environment variable is not set.
+
+..
+
+.. bpo: 29084
+.. date: 2017-12-16-09-59-35
+.. nonce: ZGJ-LJ
+.. section: C API
+
+Undocumented C API for OrderedDict has been excluded from the limited C API.
+It was added by mistake and actually never worked in the limited C API.
+
+..
+
+.. bpo: 32264
+.. date: 2017-12-12-23-09-46
+.. nonce: ahRlOI
+.. section: C API
+
+Moved the pygetopt.h header into internal/, since it has no public APIs.
+
+..
+
+.. bpo: 32241
+.. date: 2017-12-07-15-58-15
+.. nonce: LbyQt6
+.. section: C API
+
+:c:func:`Py_SetProgramName` and :c:func:`Py_SetPythonHome` now take the
+``const wchar *`` arguments instead of ``wchar *``.
--- /dev/null
+.. bpo: 32703
+.. date: 2018-01-29-01-15-17
+.. nonce: mwrF4-
+.. release date: 2018-01-30
+.. section: Core and Builtins
+
+Fix coroutine's ResourceWarning when there's an active error set when it's
+being finalized.
+
+..
+
+.. bpo: 32650
+.. date: 2018-01-28-23-01-39
+.. nonce: Bbi7ek
+.. section: Core and Builtins
+
+Pdb and other debuggers dependent on bdb.py will correctly step over (next
+command) native coroutines. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 28685
+.. date: 2018-01-28-15-09-33
+.. nonce: cHThLM
+.. section: Core and Builtins
+
+Optimize list.sort() and sorted() by using type specialized comparisons when
+possible.
+
+..
+
+.. bpo: 32685
+.. date: 2018-01-28-12-25-06
+.. nonce: nGctze
+.. section: Core and Builtins
+
+Improve suggestion when the Python 2 form of print statement is either
+present on the same line as the header of a compound statement or else
+terminated by a semi-colon instead of a newline. Patch by Nitish Chandra.
+
+..
+
+.. bpo: 32697
+.. date: 2018-01-28-09-52-12
+.. nonce: RHlu6k
+.. section: Core and Builtins
+
+Python now explicitly preserves the definition order of keyword-only
+parameters. It's always preserved their order, but this behavior was never
+guaranteed before; this behavior is now guaranteed and tested.
+
+..
+
+.. bpo: 32690
+.. date: 2018-01-28-09-26-07
+.. nonce: 8i9g5P
+.. section: Core and Builtins
+
+The locals() dictionary now displays in the lexical order that variables
+were defined. Previously, the order was reversed.
+
+..
+
+.. bpo: 32677
+.. date: 2018-01-26-20-11-09
+.. nonce: xTGfCq
+.. section: Core and Builtins
+
+Add ``.isascii()`` method to ``str``, ``bytes`` and ``bytearray``. It can be
+used to test that string contains only ASCII characters.
+
+..
+
+.. bpo: 32670
+.. date: 2018-01-25-17-03-46
+.. nonce: YsqJUC
+.. section: Core and Builtins
+
+Enforce :pep:`479` for all code.
+This means that manually raising a StopIteration exception from a generator
+is prohibited for all code, regardless of whether 'from __future__ import
+generator_stop' was used or not.
+
+..
+
+.. bpo: 32591
+.. date: 2018-01-20-00-50-33
+.. nonce: 666kl6
+.. section: Core and Builtins
+
+Added built-in support for tracking the origin of coroutine objects; see
+sys.set_coroutine_origin_tracking_depth and CoroutineType.cr_origin. This
+replaces the asyncio debug mode's use of coroutine wrapping for native
+coroutine objects.
+
+..
+
+.. bpo: 31368
+.. date: 2018-01-19-01-54-22
+.. nonce: kzKqUR
+.. section: Core and Builtins
+
+Expose preadv and pwritev system calls in the os module. Patch by Pablo
+Galindo
+
+..
+
+.. bpo: 32544
+.. date: 2018-01-16-18-51-58
+.. nonce: ga-cFE
+.. section: Core and Builtins
+
+``hasattr(obj, name)`` and ``getattr(obj, name, default)`` are about 4 times
+faster than before when ``name`` is not found and ``obj`` doesn't override
+``__getattr__`` or ``__getattribute__``.
+
+..
+
+.. bpo: 26163
+.. date: 2018-01-14-20-32-47
+.. nonce: xv9Iuv
+.. section: Core and Builtins
+
+Improved frozenset() hash to create more distinct hash values when faced
+with datasets containing many similar values.
+
+..
+
+.. bpo: 32550
+.. date: 2018-01-14-12-42-17
+.. nonce: k0EK-4
+.. section: Core and Builtins
+
+Remove the STORE_ANNOTATION bytecode.
+
+..
+
+.. bpo: 20104
+.. date: 2018-01-06-01-14-53
+.. nonce: 9DkKb8
+.. section: Core and Builtins
+
+Expose posix_spawn as a low level API in the os module.
+(removed before 3.7.0rc1)
+
+..
+
+.. bpo: 24340
+.. date: 2018-01-01-21-59-31
+.. nonce: hmKBvg
+.. section: Core and Builtins
+
+Fixed estimation of the code stack size.
+
+..
+
+.. bpo: 32436
+.. date: 2017-12-28-00-20-42
+.. nonce: H159Jv
+.. section: Core and Builtins
+
+Implement :pep:`567` Context Variables.
+
+..
+
+.. bpo: 18533
+.. date: 2017-12-13-16-46-23
+.. nonce: Dlk8d7
+.. section: Core and Builtins
+
+``repr()`` on a dict containing its own ``values()`` or ``items()`` no
+longer raises ``RecursionError``; OrderedDict similarly. Instead, use
+``...``, as for other recursive structures. Patch by Ben North.
+
+..
+
+.. bpo: 20891
+.. date: 2017-12-04-18-34-11
+.. nonce: C2TsfR
+.. section: Core and Builtins
+
+Py_Initialize() now creates the GIL. The GIL is no longer created "on
+demand" to fix a race condition when PyGILState_Ensure() is called in a
+non-Python thread.
+
+..
+
+.. bpo: 32028
+.. date: 2017-12-03-22-29-13
+.. nonce: KC2w4Q
+.. section: Core and Builtins
+
+Leading whitespace is now correctly ignored when generating suggestions for
+converting Py2 print statements to Py3 builtin print function calls. Patch
+by Sanyam Khurana.
+
+..
+
+.. bpo: 31179
+.. date: 2017-08-10-17-32-48
+.. nonce: XcgLYI
+.. section: Core and Builtins
+
+Make dict.copy() up to 5.5 times faster.
+
+..
+
+.. bpo: 31113
+.. date: 2017-08-07-16-46-56
+.. nonce: XgNEFg
+.. section: Core and Builtins
+
+Get rid of recursion in the compiler for normal control flow.
+
+..
+
+.. bpo: 25988
+.. date: 2018-01-28-23-48-45
+.. nonce: I9uBct
+.. section: Library
+
+Deprecate exposing the contents of collections.abc in the regular
+collections module.
+
+..
+
+.. bpo: 31429
+.. date: 2018-01-28-22-40-05
+.. nonce: qNt8rQ
+.. section: Library
+
+The default cipher suite selection of the ssl module now uses a blacklist
+approach rather than a hard-coded whitelist. Python no longer re-enables
+ciphers that have been blocked by OpenSSL security update. Default cipher
+suite selection can be configured on compile time.
+
+..
+
+.. bpo: 30306
+.. date: 2018-01-28-14-10-51
+.. nonce: TmKMXi
+.. section: Library
+
+contextlib.contextmanager now releases the arguments passed to the
+underlying generator as soon as the context manager is entered. Previously
+it would keep them alive for as long as the context manager was alive, even
+when not being used as a function decorator. Patch by Martin Teichmann.
+
+..
+
+.. bpo: 21417
+.. date: 2018-01-28-07-55-10
+.. nonce: JFnV99
+.. section: Library
+
+Added support for setting the compression level for zipfile.ZipFile.
+
+..
+
+.. bpo: 32251
+.. date: 2018-01-28-01-21-47
+.. nonce: fOA5qB
+.. section: Library
+
+Implement asyncio.BufferedProtocol (provisional API).
+
+..
+
+.. bpo: 32513
+.. date: 2018-01-27-11-20-16
+.. nonce: ak-iD2
+.. section: Library
+
+In dataclasses, allow easier overriding of dunder methods without specifying
+decorator parameters.
+
+..
+
+.. bpo: 32660
+.. date: 2018-01-26-01-26-00
+.. nonce: tVJIWV
+.. section: Library
+
+:mod:`termios` makes available ``FIONREAD``, ``FIONCLEX``, ``FIOCLEX``,
+``FIOASYNC`` and ``FIONBIO`` also under Solaris/derivatives.
+
+..
+
+.. bpo: 27931
+.. date: 2018-01-25-21-04-11
+.. nonce: e4r52t
+.. section: Library
+
+Fix email address header parsing error when the username is an empty quoted
+string. Patch by Xiang Zhang.
+
+..
+
+.. bpo: 32659
+.. date: 2018-01-25-03-46-00
+.. nonce: VHYoON
+.. section: Library
+
+Under Solaris and derivatives, :class:`os.stat_result` provides a st_fstype
+attribute.
+
+..
+
+.. bpo: 32662
+.. date: 2018-01-25-01-45-30
+.. nonce: oabhd8
+.. section: Library
+
+Implement Server.start_serving(), Server.serve_forever(), and
+Server.is_serving() methods. Add 'start_serving' keyword parameter to
+loop.create_server() and loop.create_unix_server().
+
+..
+
+.. bpo: 32391
+.. date: 2018-01-24-15-20-12
+.. nonce: 0f8MY9
+.. section: Library
+
+Implement :meth:`asyncio.StreamWriter.wait_closed` and
+:meth:`asyncio.StreamWriter.is_closing` methods
+
+..
+
+.. bpo: 32643
+.. date: 2018-01-24-00-32-58
+.. nonce: VWipsW
+.. section: Library
+
+Make Task._step, Task._wakeup and Future._schedule_callbacks methods
+private.
+
+..
+
+.. bpo: 32630
+.. date: 2018-01-23-01-57-36
+.. nonce: 6KRHBs
+.. section: Library
+
+Refactor decimal module to use contextvars to store decimal context.
+
+..
+
+.. bpo: 32622
+.. date: 2018-01-22-18-18-44
+.. nonce: A1D6FP
+.. section: Library
+
+Add :meth:`asyncio.AbstractEventLoop.sendfile` method.
+
+..
+
+.. bpo: 32304
+.. date: 2018-01-21-16-33-53
+.. nonce: TItrNv
+.. section: Library
+
+distutils' upload command no longer corrupts tar files ending with a CR
+byte, and no longer tries to convert CR to CRLF in any of the upload text
+fields.
+
+..
+
+.. bpo: 32502
+.. date: 2018-01-20-17-15-34
+.. nonce: OXJfn7
+.. section: Library
+
+uuid.uuid1 no longer raises an exception if a 64-bit hardware address is
+encountered.
+
+..
+
+.. bpo: 32596
+.. date: 2018-01-19-19-57-45
+.. nonce: 4aVIie
+.. section: Library
+
+``concurrent.futures`` imports ``ThreadPoolExecutor`` and
+``ProcessPoolExecutor`` lazily (using :pep:`562`). It makes ``import
+asyncio`` about 15% faster because asyncio uses only ``ThreadPoolExecutor``
+by default.
+
+..
+
+.. bpo: 31801
+.. date: 2018-01-18-13-47-40
+.. nonce: 3UGH1h
+.. section: Library
+
+Add ``_ignore_`` to ``Enum`` so temporary variables can be used during class
+construction without being turned into members.
+
+..
+
+.. bpo: 32576
+.. date: 2018-01-17-13-04-16
+.. nonce: iDL09t
+.. section: Library
+
+Use queue.SimpleQueue() in places where it can be invoked from a weakref
+callback.
+
+..
+
+.. bpo: 32574
+.. date: 2018-01-16-20-37-28
+.. nonce: ru8eZ9
+.. section: Library
+
+Fix memory leak in asyncio.Queue, when the queue has limited size and it is
+full, the cancelation of queue.put() can cause a memory leak. Patch by: José
+Melero.
+
+..
+
+.. bpo: 32521
+.. date: 2018-01-15-12-53-13
+.. nonce: IxX4Ba
+.. section: Library
+
+The nis module is now compatible with new libnsl and headers location.
+
+..
+
+.. bpo: 32467
+.. date: 2018-01-11-00-33-42
+.. nonce: YVEOv6
+.. section: Library
+
+collections.abc.ValuesView now inherits from collections.abc.Collection.
+
+..
+
+.. bpo: 32473
+.. date: 2018-01-10-20-37-59
+.. nonce: mP_yJG
+.. section: Library
+
+Improve ABCMeta._dump_registry() output readability
+
+..
+
+.. bpo: 32102
+.. date: 2018-01-10-18-04-21
+.. nonce: 9-CZgD
+.. section: Library
+
+New argument ``capture_output`` for subprocess.run
+
+..
+
+.. bpo: 32521
+.. date: 2018-01-08-18-02-33
+.. nonce: Kh-KoN
+.. section: Library
+
+glibc has removed Sun RPC. Use replacement libtirpc headers and library in
+nis module.
+
+..
+
+.. bpo: 32493
+.. date: 2018-01-08-15-53-37
+.. nonce: vTXxGN
+.. section: Library
+
+UUID module fixes build for FreeBSD/OpenBSD
+
+..
+
+.. bpo: 32503
+.. date: 2018-01-07-09-22-26
+.. nonce: ViMxpD
+.. section: Library
+
+Pickling with protocol 4 no longer creates too small frames.
+
+..
+
+.. bpo: 29237
+.. date: 2018-01-04-14-45-33
+.. nonce: zenYA6
+.. section: Library
+
+Create enum for pstats sorting options
+
+..
+
+.. bpo: 32454
+.. date: 2017-12-30-10-38-05
+.. nonce: wsZnl-
+.. section: Library
+
+Add close(fd) function to the socket module.
+
+..
+
+.. bpo: 25942
+.. date: 2017-12-27-20-15-51
+.. nonce: Giyr8v
+.. section: Library
+
+The subprocess module is now more graceful when handling a Ctrl-C
+KeyboardInterrupt during subprocess.call, subprocess.run, or a Popen context
+manager. It now waits a short amount of time for the child (presumed to
+have also gotten the SIGINT) to exit, before continuing the
+KeyboardInterrupt exception handling. This still includes a SIGKILL in the
+call() and run() APIs, but at least the child had a chance first.
+
+..
+
+.. bpo: 32433
+.. date: 2017-12-27-20-09-27
+.. nonce: vmxsVI
+.. section: Library
+
+The hmac module now has hmac.digest(), which provides an optimized HMAC
+digest.
+
+..
+
+.. bpo: 28134
+.. date: 2017-12-24-20-01-09
+.. nonce: HJ8Beb
+.. section: Library
+
+Sockets now auto-detect family, type and protocol from file descriptor by
+default.
+
+..
+
+.. bpo: 32404
+.. date: 2017-12-23-14-54-05
+.. nonce: yJqtlJ
+.. section: Library
+
+Fix bug where :meth:`datetime.datetime.fromtimestamp` did not call __new__
+in :class:`datetime.datetime` subclasses.
+
+..
+
+.. bpo: 32403
+.. date: 2017-12-23-14-51-46
+.. nonce: CVFapH
+.. section: Library
+
+Improved speed of :class:`datetime.date` and :class:`datetime.datetime`
+alternate constructors.
+
+..
+
+.. bpo: 32228
+.. date: 2017-12-22-16-47-41
+.. nonce: waPx3q
+.. section: Library
+
+Ensure that ``truncate()`` preserves the file position (as reported by
+``tell()``) after writes longer than the buffer size.
+
+..
+
+.. bpo: 32410
+.. date: 2017-12-22-16-05-01
+.. nonce: 8JzhvH
+.. section: Library
+
+Implement ``loop.sock_sendfile`` for asyncio event loop.
+
+..
+
+.. bpo: 22908
+.. date: 2017-12-21-22-00-11
+.. nonce: cVm89I
+.. section: Library
+
+Added seek and tell to the ZipExtFile class. This only works if the file
+object used to open the zipfile is seekable.
+
+..
+
+.. bpo: 32373
+.. date: 2017-12-19-09-23-46
+.. nonce: 8qAkoW
+.. section: Library
+
+Add socket.getblocking() method.
+
+..
+
+.. bpo: 32248
+.. date: 2017-12-15-15-34-12
+.. nonce: zmO8G2
+.. section: Library
+
+Add :mod:`importlib.resources` and :class:`importlib.abc.ResourceReader` as
+the unified API for reading resources contained within packages. Loaders
+wishing to support resource reading must implement the
+:meth:`get_resource_reader()` method. File-based and zipimport-based
+loaders both implement these APIs. :class:`importlib.abc.ResourceLoader` is
+deprecated in favor of these new APIs.
+
+..
+
+.. bpo: 32320
+.. date: 2017-12-14-01-36-25
+.. nonce: jwOZlr
+.. section: Library
+
+collections.namedtuple() now supports default values.
+
+..
+
+.. bpo: 29302
+.. date: 2017-12-11-15-14-55
+.. nonce: Nczj9l
+.. section: Library
+
+Add contextlib.AsyncExitStack. Patch by Alexander Mohr and Ilya Kulakov.
+
+..
+
+.. bpo: 31961
+.. date: 2017-11-08-03-38-20
+.. nonce: x5Sv0R
+.. section: Library
+
+*Removed in Python 3.7.0b2.*
+The *args* argument of subprocess.Popen can now be a :term:`path-like
+object`. If *args* is given as a sequence, it's first element can now be a
+:term:`path-like object` as well.
+
+..
+
+.. bpo: 31900
+.. date: 2017-10-30-15-55-32
+.. nonce: -S9xc4
+.. section: Library
+
+The :func:`locale.localeconv` function now sets temporarily the ``LC_CTYPE``
+locale to the ``LC_NUMERIC`` locale to decode ``decimal_point`` and
+``thousands_sep`` byte strings if they are non-ASCII or longer than 1 byte,
+and the ``LC_NUMERIC`` locale is different than the ``LC_CTYPE`` locale.
+This temporary change affects other threads.
+Same change for the :meth:`str.format` method when formatting a number
+(:class:`int`, :class:`float`, :class:`float` and subclasses) with the ``n``
+type (ex: ``'{:n}'.format(1234)``).
+
+..
+
+.. bpo: 31853
+.. date: 2017-10-23-22-55-51
+.. nonce: h5fjrP
+.. section: Library
+
+Use super().method instead of socket.method in SSLSocket. They were there
+most likely for legacy reasons.
+
+..
+
+.. bpo: 31399
+.. date: 2017-09-08-14-05-33
+.. nonce: FtBrrt
+.. section: Library
+
+The ssl module now uses OpenSSL's X509_VERIFY_PARAM_set1_host() and
+X509_VERIFY_PARAM_set1_ip() API to verify hostname and IP addresses. Subject
+common name fallback can be disabled with
+SSLContext.hostname_checks_common_name.
+
+..
+
+.. bpo: 14976
+.. date: 2017-09-07-19-12-47
+.. nonce: dx0Zxb
+.. section: Library
+
+Add a queue.SimpleQueue class, an unbounded FIFO queue with a reentrant C
+implementation of put().
+
+..
+
+.. bpo: 32724
+.. date: 2018-01-30-09-00-19
+.. nonce: qPIaM-
+.. section: Documentation
+
+Add references to some commands in the documentation of Pdb. Patch by
+Stéphane Wirtel
+
+..
+
+.. bpo: 32649
+.. date: 2018-01-27-23-36-31
+.. nonce: o7qOjF
+.. section: Documentation
+
+Complete the C API documentation, profiling and tracing part with the newly
+added per-opcode events.
+
+..
+
+.. bpo: 17799
+.. date: 2018-01-22-21-13-46
+.. nonce: rdZ-Vk
+.. section: Documentation
+
+Explain real behaviour of sys.settrace and sys.setprofile and their C-API
+counterparts regarding which type of events are received in each function.
+Patch by Pablo Galindo Salgado.
+
+..
+
+.. bpo: 32721
+.. date: 2018-01-29-21-30-44
+.. nonce: 2Bebm1
+.. section: Tests
+
+Fix test_hashlib to not fail if the _md5 module is not built.
+
+..
+
+.. bpo: 28414
+.. date: 2018-01-28-21-19-13
+.. nonce: a6Onzt
+.. section: Tests
+
+Add test cases for IDNA 2003 and 2008 host names. IDNA 2003
+internationalized host names are working since bpo-31399 has landed. IDNA
+2008 are still broken.
+
+..
+
+.. bpo: 32604
+.. date: 2018-01-26-21-29-09
+.. nonce: 7iazNx
+.. section: Tests
+
+Add a new "_xxsubinterpreters" extension module that exposes the existing
+subinterpreter C-API and a new cross-interpreter data sharing mechanism. The
+module is primarily intended for more thorough testing of the existing
+subinterpreter support.
+Note that the _xxsubinterpreters module has been removed in 3.7.0rc1.
+
+..
+
+.. bpo: 32602
+.. date: 2018-01-19-20-47-11
+.. nonce: dz41pq
+.. section: Tests
+
+Add test certs and test for ECDSA cert and EC/RSA dual mode.
+
+..
+
+.. bpo: 32549
+.. date: 2018-01-14-11-40-22
+.. nonce: fLwbVA
+.. section: Tests
+
+On Travis CI, Python now Compiles and uses a local copy of OpenSSL 1.1.0g
+for testing.
+
+..
+
+.. bpo: 32635
+.. date: 2018-01-23-15-33-40
+.. nonce: qHwIZy
+.. section: Build
+
+Fix segfault of the crypt module when libxcrypt is provided instead of
+libcrypt at the system.
+
+..
+
+.. bpo: 32598
+.. date: 2018-01-19-14-50-19
+.. nonce: hP7bMV
+.. section: Build
+
+Use autoconf to detect OpenSSL libs, headers and supported features. The
+ax_check_openssl M4 macro uses pkg-config to locate OpenSSL and falls back
+to manual search.
+
+..
+
+.. bpo: 32593
+.. date: 2018-01-18-11-10-52
+.. nonce: XIrf3v
+.. section: Build
+
+Drop support of FreeBSD 9 and older.
+
+..
+
+.. bpo: 29708
+.. date: 2018-01-16-08-32-49
+.. nonce: YCaHEx
+.. section: Build
+
+If the :envvar:`SOURCE_DATE_EPOCH` environment variable is set,
+:mod:`py_compile` will always create hash-based ``.pyc`` files.
+
+..
+
+.. bpo: 32588
+.. date: 2018-01-18-14-56-45
+.. nonce: vHww6F
+.. section: Windows
+
+Create standalone _distutils_findvs module and add missing _queue module to
+installer.
+
+..
+
+.. bpo: 29911
+.. date: 2018-01-07-12-33-21
+.. nonce: ewSJKb
+.. section: Windows
+
+Ensure separate Modify and Uninstall buttons are displayed.
+
+..
+
+.. bpo: 32507
+.. date: 2018-01-07-12-32-49
+.. nonce: vB4gxk
+.. section: Windows
+
+Use app-local UCRT install rather than the proper update for old versions of
+Windows.
+
+..
+
+.. bpo: 32726
+.. date: 2018-01-30-07-13-10
+.. nonce: tcARLK
+.. section: macOS
+
+Provide an additional, more modern macOS installer variant that supports
+macOS 10.9+ systems in 64-bit mode only. Upgrade the supplied third-party
+libraries to OpenSSL 1.1.0g and to SQLite 3.22.0. The 10.9+ installer now
+links with and supplies its own copy of Tcl/Tk 8.6.
+
+..
+
+.. bpo: 28440
+.. date: 2018-01-30-04-40-12
+.. nonce: W_BUWU
+.. section: macOS
+
+No longer add /Library/Python/3.x/site-packages to sys.path for macOS
+framework builds to avoid future conflicts.
+
+..
+
+.. bpo: 32681
+.. date: 2018-01-26-17-29-29
+.. nonce: N1ruWa
+.. section: C API
+
+Fix uninitialized variable 'res' in the C implementation of os.dup2. Patch
+by Stéphane Wirtel
+
+..
+
+.. bpo: 10381
+.. date: 2017-12-28-15-22-05
+.. nonce: a1E6aF
+.. section: C API
+
+Add C API access to the ``datetime.timezone`` constructor and
+``datetime.timzone.UTC`` singleton.
--- /dev/null
+.. bpo: 28414
+.. date: 2017-08-06-14-43-45
+.. nonce: mzZ6vD
+.. release date: 2018-02-27
+.. section: Security
+
+The ssl module now allows users to perform their own IDN en/decoding when
+using SNI.
+
+..
+
+.. bpo: 32889
+.. date: 2018-02-20-21-53-48
+.. nonce: J6eWy5
+.. section: Core and Builtins
+
+Update Valgrind suppression list to account for the rename of
+``Py_ADDRESS_IN_RANG`` to ``address_in_range``.
+
+..
+
+.. bpo: 31356
+.. date: 2018-02-02-08-50-46
+.. nonce: MNwUOQ
+.. section: Core and Builtins
+
+Remove the new API added in bpo-31356 (gc.ensure_disabled() context
+manager).
+
+..
+
+.. bpo: 32305
+.. date: 2018-02-01-10-56-41
+.. nonce: dkU9Qa
+.. section: Core and Builtins
+
+For namespace packages, ensure that both ``__file__`` and
+``__spec__.origin`` are set to None.
+
+..
+
+.. bpo: 32303
+.. date: 2018-02-01-10-16-28
+.. nonce: VsvhSl
+.. section: Core and Builtins
+
+Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages.
+
+..
+
+.. bpo: 32711
+.. date: 2018-01-29-14-36-37
+.. nonce: 8hQFJP
+.. section: Core and Builtins
+
+Fix the warning messages for Python/ast_unparse.c. Patch by Stéphane Wirtel
+
+..
+
+.. bpo: 32583
+.. date: 2018-01-26-21-20-21
+.. nonce: Fh3fau
+.. section: Core and Builtins
+
+Fix possible crashing in builtin Unicode decoders caused by write
+out-of-bound errors when using customized decode error handlers.
+
+..
+
+.. bpo: 32960
+.. date: 2018-02-26-20-04-40
+.. nonce: 48r0Ml
+.. section: Library
+
+For dataclasses, disallow inheriting frozen from non-frozen classes, and
+also disallow inheriting non-frozen from frozen classes. This restriction
+will be relaxed at a future date.
+
+..
+
+.. bpo: 32713
+.. date: 2018-02-26-13-16-36
+.. nonce: 55yegW
+.. section: Library
+
+Fixed tarfile.itn handling of out-of-bounds float values. Patch by Joffrey
+Fuhrer.
+
+..
+
+.. bpo: 32951
+.. date: 2018-02-25-18-22-01
+.. nonce: gHrCXq
+.. section: Library
+
+Direct instantiation of SSLSocket and SSLObject objects is now prohibited.
+The constructors were never documented, tested, or designed as public
+constructors. Users were suppose to use ssl.wrap_socket() or SSLContext.
+
+..
+
+.. bpo: 32929
+.. date: 2018-02-25-13-47-48
+.. nonce: X2gTDH
+.. section: Library
+
+Remove the tri-state parameter "hash", and add the boolean "unsafe_hash". If
+unsafe_hash is True, add a __hash__ function, but if a __hash__ exists,
+raise TypeError. If unsafe_hash is False, add a __hash__ based on the
+values of eq= and frozen=. The unsafe_hash=False behavior is the same as
+the old hash=None behavior. unsafe_hash=False is the default, just as
+hash=None used to be.
+
+..
+
+.. bpo: 32947
+.. date: 2018-02-25-13-06-21
+.. nonce: mqStVW
+.. section: Library
+
+Add OP_ENABLE_MIDDLEBOX_COMPAT and test workaround for TLSv1.3 for future
+compatibility with OpenSSL 1.1.1.
+
+..
+
+.. bpo: 30622
+.. date: 2018-02-24-21-40-42
+.. nonce: dQjxSe
+.. section: Library
+
+The ssl module now detects missing NPN support in LibreSSL.
+
+..
+
+.. bpo: 32922
+.. date: 2018-02-23-19-12-04
+.. nonce: u-xe0B
+.. section: Library
+
+dbm.open() now encodes filename with the filesystem encoding rather than
+default encoding.
+
+..
+
+.. bpo: 32859
+.. date: 2018-02-19-17-46-31
+.. nonce: kAT-Xp
+.. section: Library
+
+In ``os.dup2``, don't check every call whether the ``dup3`` syscall exists
+or not.
+
+..
+
+.. bpo: 32556
+.. date: 2018-02-19-14-27-51
+.. nonce: CsRsgr
+.. section: Library
+
+nt._getfinalpathname, nt._getvolumepathname and nt._getdiskusage now
+correctly convert from bytes.
+
+..
+
+.. bpo: 25988
+.. date: 2018-02-18-13-04-59
+.. nonce: ACidKC
+.. section: Library
+
+Emit a :exc:`DeprecationWarning` when using or importing an ABC directly
+from :mod:`collections` rather than from :mod:`collections.abc`.
+
+..
+
+.. bpo: 21060
+.. date: 2018-02-17-19-20-19
+.. nonce: S1Z-x6
+.. section: Library
+
+Rewrite confusing message from setup.py upload from "No dist file created in
+earlier command" to the more helpful "Must create and upload files in one
+command".
+
+..
+
+.. bpo: 32852
+.. date: 2018-02-15-12-04-29
+.. nonce: HDqIxM
+.. section: Library
+
+Make sure sys.argv remains as a list when running trace.
+
+..
+
+.. bpo: 31333
+.. date: 2018-02-15-08-18-52
+.. nonce: 4fF-gM
+.. section: Library
+
+``_abc`` module is added. It is a speedup module with C implementations for
+various functions and methods in ``abc``. Creating an ABC subclass and
+calling ``isinstance`` or ``issubclass`` with an ABC subclass are up to 1.5x
+faster. In addition, this makes Python start-up up to 10% faster.
+Note that the new implementation hides internal registry and caches,
+previously accessible via private attributes ``_abc_registry``,
+``_abc_cache``, and ``_abc_negative_cache``. There are three debugging
+helper methods that can be used instead ``_dump_registry``,
+``_abc_registry_clear``, and ``_abc_caches_clear``.
+
+..
+
+.. bpo: 32841
+.. date: 2018-02-14-00-21-24
+.. nonce: bvHDOc
+.. section: Library
+
+Fixed `asyncio.Condition` issue which silently ignored cancellation after
+notifying and cancelling a conditional lock. Patch by Bar Harel.
+
+..
+
+.. bpo: 32819
+.. date: 2018-02-11-15-54-41
+.. nonce: ZTRX2Q
+.. section: Library
+
+ssl.match_hostname() has been simplified and no longer depends on re and
+ipaddress module for wildcard and IP addresses. Error reporting for invalid
+wildcards has been improved.
+
+..
+
+.. bpo: 32394
+.. date: 2018-02-10-13-51-56
+.. nonce: dFM9SI
+.. section: Library
+
+socket: Remove TCP_FASTOPEN,TCP_KEEPCNT,TCP_KEEPIDLE,TCP_KEEPINTVL flags on
+older version Windows during run-time.
+
+..
+
+.. bpo: 31787
+.. date: 2018-02-09-21-41-56
+.. nonce: owSZ2t
+.. section: Library
+
+Fixed refleaks of ``__init__()`` methods in various modules. (Contributed by
+Oren Milman)
+
+..
+
+.. bpo: 30157
+.. date: 2018-02-09-14-44-43
+.. nonce: lEiiAK
+.. section: Library
+
+Fixed guessing quote and delimiter in csv.Sniffer.sniff() when only the last
+field is quoted. Patch by Jake Davis.
+
+..
+
+.. bpo: 32792
+.. date: 2018-02-08-00-47-07
+.. nonce: NtyDb4
+.. section: Library
+
+collections.ChainMap() preserves the order of the underlying mappings.
+
+..
+
+.. bpo: 32775
+.. date: 2018-02-07-19-12-10
+.. nonce: -T77_c
+.. section: Library
+
+:func:`fnmatch.translate()` no longer produces patterns which contain set
+operations. Sets starting with '[' or containing '--', '&&', '~~' or '||'
+will be interpreted differently in regular expressions in future versions.
+Currently they emit warnings. fnmatch.translate() now avoids producing
+patterns containing such sets by accident.
+
+..
+
+.. bpo: 32622
+.. date: 2018-02-06-17-58-15
+.. nonce: AE0Jz7
+.. section: Library
+
+Implement native fast sendfile for Windows proactor event loop.
+
+..
+
+.. bpo: 32777
+.. date: 2018-02-05-21-28-28
+.. nonce: C-wIXF
+.. section: Library
+
+Fix a rare but potential pre-exec child process deadlock in subprocess on
+POSIX systems when marking file descriptors inheritable on exec in the child
+process. This bug appears to have been introduced in 3.4.
+
+..
+
+.. bpo: 32647
+.. date: 2018-02-05-13-31-42
+.. nonce: ktmfR_
+.. section: Library
+
+The ctypes module used to depend on indirect linking for dlopen. The shared
+extension is now explicitly linked against libdl on platforms with dl.
+
+..
+
+.. bpo: 32741
+.. date: 2018-02-01-17-54-08
+.. nonce: KUvOPL
+.. section: Library
+
+Implement ``asyncio.TimerHandle.when()`` method.
+
+..
+
+.. bpo: 32691
+.. date: 2018-02-01-15-53-35
+.. nonce: VLWVTq
+.. section: Library
+
+Use mod_spec.parent when running modules with pdb
+
+..
+
+.. bpo: 32734
+.. date: 2018-02-01-01-34-47
+.. nonce: gCV9AD
+.. section: Library
+
+Fixed ``asyncio.Lock()`` safety issue which allowed acquiring and locking
+the same lock multiple times, without it being free. Patch by Bar Harel.
+
+..
+
+.. bpo: 32727
+.. date: 2018-01-30-17-46-18
+.. nonce: aHVsRC
+.. section: Library
+
+Do not include name field in SMTP envelope from address. Patch by Stéphane
+Wirtel
+
+..
+
+.. bpo: 31453
+.. date: 2018-01-21-15-01-50
+.. nonce: cZiZBe
+.. section: Library
+
+Add TLSVersion constants and SSLContext.maximum_version / minimum_version
+attributes. The new API wraps OpenSSL 1.1
+https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_set_min_proto_version.html
+feature.
+
+..
+
+.. bpo: 24334
+.. date: 2018-01-20-23-17-25
+.. nonce: GZuQLv
+.. section: Library
+
+Internal implementation details of ssl module were cleaned up. The SSLSocket
+has one less layer of indirection. Owner and session information are now
+handled by the SSLSocket and SSLObject constructor. Channel binding
+implementation has been simplified.
+
+..
+
+.. bpo: 31848
+.. date: 2018-01-18-23-34-17
+.. nonce: M2cldy
+.. section: Library
+
+Fix the error handling in Aifc_read.initfp() when the SSND chunk is not
+found. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 32585
+.. date: 2018-01-18-13-09-00
+.. nonce: qpeijr
+.. section: Library
+
+Add Ttk spinbox widget to :mod:`tkinter.ttk`. Patch by Alan D Moore.
+
+..
+
+.. bpo: 32221
+.. date: 2017-12-06-10-10-10
+.. nonce: ideco_
+.. section: Library
+
+Various functions returning tuple containing IPv6 addresses now omit
+``%scope`` part since the same information is already encoded in *scopeid*
+tuple item. Especially this speeds up :func:`socket.recvfrom` when it
+receives multicast packet since useless resolving of network interface name
+is omitted.
+
+..
+
+.. bpo: 30693
+.. date: 2017-11-27-15-09-49
+.. nonce: yC4mJ8
+.. section: Library
+
+The TarFile class now recurses directories in a reproducible way.
+
+..
+
+.. bpo: 30693
+.. date: 2017-11-27-15-09-49
+.. nonce: yC4mJ7
+.. section: Library
+
+The ZipFile class now recurses directories in a reproducible way.
+
+..
+
+.. bpo: 28124
+.. date: 2018-02-25-16-33-35
+.. nonce: _uzkgq
+.. section: Documentation
+
+The ssl module function ssl.wrap_socket() has been de-emphasized and
+deprecated in favor of the more secure and efficient
+SSLContext.wrap_socket() method.
+
+..
+
+.. bpo: 17232
+.. date: 2018-02-23-12-48-03
+.. nonce: tmuTKL
+.. section: Documentation
+
+Clarify docs for -O and -OO. Patch by Terry Reedy.
+
+..
+
+.. bpo: 32436
+.. date: 2018-02-14-11-10-41
+.. nonce: TTJ2jb
+.. section: Documentation
+
+Add documentation for the contextvars module (PEP 567).
+
+..
+
+.. bpo: 32800
+.. date: 2018-02-10-15-16-04
+.. nonce: FyrqCk
+.. section: Documentation
+
+Update link to w3c doc for xml default namespaces.
+
+..
+
+.. bpo: 11015
+.. date: 2018-02-10-12-48-38
+.. nonce: -gUf34
+.. section: Documentation
+
+Update :mod:`test.support` documentation.
+
+..
+
+.. bpo: 8722
+.. date: 2018-02-03-06-11-37
+.. nonce: MPyVyj
+.. section: Documentation
+
+Document :meth:`__getattr__` behavior when property :meth:`get` method
+raises :exc:`AttributeError`.
+
+..
+
+.. bpo: 32614
+.. date: 2018-02-02-07-41-57
+.. nonce: LSqzGw
+.. section: Documentation
+
+Modify RE examples in documentation to use raw strings to prevent
+:exc:`DeprecationWarning` and add text to REGEX HOWTO to highlight the
+deprecation.
+
+..
+
+.. bpo: 31972
+.. date: 2018-01-25-14-23-12
+.. nonce: w1m_8r
+.. section: Documentation
+
+Improve docstrings for `pathlib.PurePath` subclasses.
+
+..
+
+.. bpo: 31809
+.. date: 2017-10-18-18-07-45
+.. nonce: KlQrkE
+.. section: Tests
+
+Add tests to verify connection with secp ECDH curves.
+
+..
+
+.. bpo: 32898
+.. date: 2018-02-21-12-46-00
+.. nonce: M15bZh
+.. section: Build
+
+Fix the python debug build when using COUNT_ALLOCS.
+
+..
+
+.. bpo: 32901
+.. date: 2018-02-23-00-47-13
+.. nonce: mGKz5_
+.. section: Windows
+
+Update Tcl and Tk versions to 8.6.8
+
+..
+
+.. bpo: 31966
+.. date: 2018-02-19-13-54-42
+.. nonce: _Q3HPb
+.. section: Windows
+
+Fixed WindowsConsoleIO.write() for writing empty data.
+
+..
+
+.. bpo: 32409
+.. date: 2018-02-19-10-00-57
+.. nonce: nocuDg
+.. section: Windows
+
+Ensures activate.bat can handle Unicode contents.
+
+..
+
+.. bpo: 32457
+.. date: 2018-02-19-08-54-06
+.. nonce: vVP0Iz
+.. section: Windows
+
+Improves handling of denormalized executable path when launching Python.
+
+..
+
+.. bpo: 32370
+.. date: 2018-02-10-15-38-19
+.. nonce: kcKuct
+.. section: Windows
+
+Use the correct encoding for ipconfig output in the uuid module. Patch by
+Segev Finer.
+
+..
+
+.. bpo: 29248
+.. date: 2018-02-07-17-50-48
+.. nonce: Xzwj-6
+.. section: Windows
+
+Fix :func:`os.readlink` on Windows, which was mistakenly treating the
+``PrintNameOffset`` field of the reparse data buffer as a number of
+characters instead of bytes. Patch by Craig Holmquist and SSE4.
+
+..
+
+.. bpo: 32901
+.. date: 2018-02-27-17-33-15
+.. nonce: hQu0w3
+.. section: macOS
+
+Update macOS 10.9+ installer to Tcl/Tk 8.6.8.
+
+..
+
+.. bpo: 32916
+.. date: 2018-02-23-07-32-36
+.. nonce: 4MsQ5F
+.. section: IDLE
+
+Change ``str`` to ``code`` in pyparse.
+
+..
+
+.. bpo: 32905
+.. date: 2018-02-22-00-09-27
+.. nonce: VlXj0x
+.. section: IDLE
+
+Remove unused code in pyparse module.
+
+..
+
+.. bpo: 32874
+.. date: 2018-02-19-10-56-41
+.. nonce: 6pZ9Gv
+.. section: IDLE
+
+Add tests for pyparse.
+
+..
+
+.. bpo: 32837
+.. date: 2018-02-12-17-22-48
+.. nonce: -33QPl
+.. section: IDLE
+
+Using the system and place-dependent default encoding for open() is a bad
+idea for IDLE's system and location-independent files.
+
+..
+
+.. bpo: 32826
+.. date: 2018-02-12-11-05-22
+.. nonce: IxNZrk
+.. section: IDLE
+
+Add "encoding=utf-8" to open() in IDLE's test_help_about. GUI test
+test_file_buttons() only looks at initial ascii-only lines, but failed on
+systems where open() defaults to 'ascii' because readline() internally reads
+and decodes far enough ahead to encounter a non-ascii character in
+CREDITS.txt.
+
+..
+
+.. bpo: 32765
+.. date: 2018-02-04-17-52-54
+.. nonce: qm0eCu
+.. section: IDLE
+
+Update configdialog General tab docstring to add new widgets to the widget
+list.
+
+..
+
+.. bpo: 32222
+.. date: 2017-12-07-20-51-20
+.. nonce: hPBcGT
+.. section: Tools/Demos
+
+Fix pygettext not extracting docstrings for functions with type annotated
+arguments. Patch by Toby Harradine.
--- /dev/null
+.. bpo: 33136
+.. date: 2018-03-25-12-05-43
+.. nonce: TzSN4x
+.. release date: 2018-03-29
+.. section: Security
+
+Harden ssl module against LibreSSL CVE-2018-8970.
+X509_VERIFY_PARAM_set1_host() is called with an explicit namelen. A new test
+ensures that NULL bytes are not allowed.
+
+..
+
+.. bpo: 33001
+.. date: 2018-03-05-10-09-51
+.. nonce: elj4Aa
+.. section: Security
+
+Minimal fix to prevent buffer overrun in os.symlink on Windows
+
+..
+
+.. bpo: 32981
+.. date: 2018-03-02-10-24-52
+.. nonce: O_qDyj
+.. section: Security
+
+Regexes in difflib and poplib were vulnerable to catastrophic backtracking.
+These regexes formed potential DOS vectors (REDOS). They have been
+refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch by Jamie
+Davis.
+
+..
+
+.. bpo: 33053
+.. date: 2018-03-25-19-49-06
+.. nonce: V3xlsH
+.. section: Core and Builtins
+
+When using the -m switch, sys.path[0] is now explicitly expanded as the
+*starting* working directory, rather than being left as the empty path
+(which allows imports from the current working directory at the time of the
+import)
+
+..
+
+.. bpo: 33018
+.. date: 2018-03-22-23-09-06
+.. nonce: 0ncEJV
+.. section: Core and Builtins
+
+Improve consistency of errors raised by ``issubclass()`` when called with a
+non-class and an abstract base class as the first and second arguments,
+respectively. Patch by Josh Bronson.
+
+..
+
+.. bpo: 33041
+.. date: 2018-03-18-13-56-14
+.. nonce: XwPhI2
+.. section: Core and Builtins
+
+Fixed jumping when the function contains an ``async for`` loop.
+
+..
+
+.. bpo: 33026
+.. date: 2018-03-08-09-48-38
+.. nonce: QZA3Ba
+.. section: Core and Builtins
+
+Fixed jumping out of "with" block by setting f_lineno.
+
+..
+
+.. bpo: 33005
+.. date: 2018-03-06-12-19-19
+.. nonce: LP-V2U
+.. section: Core and Builtins
+
+Fix a crash on fork when using a custom memory allocator (ex: using
+PYTHONMALLOC env var). _PyGILState_Reinit() and _PyInterpreterState_Enable()
+now use the default RAW memory allocator to allocate a new interpreters
+mutex on fork.
+
+..
+
+.. bpo: 17288
+.. date: 2018-02-27-13-36-21
+.. nonce: Gdj24S
+.. section: Core and Builtins
+
+Prevent jumps from 'return' and 'exception' trace events.
+
+..
+
+.. bpo: 32836
+.. date: 2018-02-14-12-35-47
+.. nonce: bThJnx
+.. section: Core and Builtins
+
+Don't use temporary variables in cases of list/dict/set comprehensions
+
+..
+
+.. bpo: 33141
+.. date: 2018-03-26-12-33-13
+.. nonce: 23wlxf
+.. section: Library
+
+Have Field objects pass through __set_name__ to their default values, if
+they have their own __set_name__.
+
+..
+
+.. bpo: 33096
+.. date: 2018-03-25-13-18-16
+.. nonce: ofdbe7
+.. section: Library
+
+Allow ttk.Treeview.insert to insert iid that has a false boolean value. Note
+iid=0 and iid=False would be same. Patch by Garvit Khatri.
+
+..
+
+.. bpo: 32873
+.. date: 2018-03-24-19-54-48
+.. nonce: cHyoAm
+.. section: Library
+
+Treat type variables and special typing forms as immutable by copy and
+pickle. This fixes several minor issues and inconsistencies, and improves
+backwards compatibility with Python 3.6.
+
+..
+
+.. bpo: 33134
+.. date: 2018-03-24-19-34-26
+.. nonce: hbVeIX
+.. section: Library
+
+When computing dataclass's __hash__, use the lookup table to contain the
+function which returns the __hash__ value. This is an improvement over
+looking up a string, and then testing that string to see what to do.
+
+..
+
+.. bpo: 33127
+.. date: 2018-03-24-15-08-24
+.. nonce: olJmHv
+.. section: Library
+
+The ssl module now compiles with LibreSSL 2.7.1.
+
+..
+
+.. bpo: 32505
+.. date: 2018-03-22-16-05-56
+.. nonce: YK1N8v
+.. section: Library
+
+Raise TypeError if a member variable of a dataclass is of type Field, but
+doesn't have a type annotation.
+
+..
+
+.. bpo: 33078
+.. date: 2018-03-21-17-59-39
+.. nonce: PQOniT
+.. section: Library
+
+Fix the failure on OSX caused by the tests relying on sem_getvalue
+
+..
+
+.. bpo: 33116
+.. date: 2018-03-21-16-52-26
+.. nonce: Tvzerj
+.. section: Library
+
+Add 'Field' to dataclasses.__all__.
+
+..
+
+.. bpo: 32896
+.. date: 2018-03-20-20-53-21
+.. nonce: ewW3Ln
+.. section: Library
+
+Fix an error where subclassing a dataclass with a field that uses a
+default_factory would generate an incorrect class.
+
+..
+
+.. bpo: 33100
+.. date: 2018-03-19-20-47-00
+.. nonce: chyIO4
+.. section: Library
+
+Dataclasses: If a field has a default value that's a MemberDescriptorType,
+then it's from that field being in __slots__, not an actual default value.
+
+..
+
+.. bpo: 32953
+.. date: 2018-03-18-17-38-48
+.. nonce: t8WAWN
+.. section: Library
+
+If a non-dataclass inherits from a frozen dataclass, allow attributes to be
+added to the derived class. Only attributes from the frozen dataclass
+cannot be assigned to. Require all dataclasses in a hierarchy to be either
+all frozen or all non-frozen.
+
+..
+
+.. bpo: 33061
+.. date: 2018-03-16-16-07-33
+.. nonce: TRTTek
+.. section: Library
+
+Add missing ``NoReturn`` to ``__all__`` in typing.py
+
+..
+
+.. bpo: 33078
+.. date: 2018-03-15-07-38-00
+.. nonce: RmjUF5
+.. section: Library
+
+Fix the size handling in multiprocessing.Queue when a pickling error occurs.
+
+..
+
+.. bpo: 33064
+.. date: 2018-03-12-19-58-25
+.. nonce: LO2KIY
+.. section: Library
+
+lib2to3 now properly supports trailing commas after ``*args`` and
+``**kwargs`` in function signatures.
+
+..
+
+.. bpo: 33056
+.. date: 2018-03-12-16-40-00
+.. nonce: lNN9Eh
+.. section: Library
+
+FIX properly close leaking fds in concurrent.futures.ProcessPoolExecutor.
+
+..
+
+.. bpo: 33021
+.. date: 2018-03-12-00-27-56
+.. nonce: m19B9T
+.. section: Library
+
+Release the GIL during fstat() calls, avoiding hang of all threads when
+calling mmap.mmap(), os.urandom(), and random.seed(). Patch by Nir Soffer.
+
+..
+
+.. bpo: 31804
+.. date: 2018-03-11-19-03-52
+.. nonce: i8KUMp
+.. section: Library
+
+Avoid failing in multiprocessing.Process if the standard streams are closed
+or None at exit.
+
+..
+
+.. bpo: 33037
+.. date: 2018-03-09-23-07-07
+.. nonce: nAJ3at
+.. section: Library
+
+Skip sending/receiving data after SSL transport closing.
+
+..
+
+.. bpo: 27683
+.. date: 2018-03-07-22-28-17
+.. nonce: 572Rv4
+.. section: Library
+
+Fix a regression in :mod:`ipaddress` that result of :meth:`hosts` is empty
+when the network is constructed by a tuple containing an integer mask and
+only 1 bit left for addresses.
+
+..
+
+.. bpo: 32999
+.. date: 2018-03-06-20-30-20
+.. nonce: lgFXWl
+.. section: Library
+
+Fix C implementation of ``ABC.__subclasscheck__(cls, subclass)`` crashed when
+``subclass`` is not a type object.
+
+..
+
+.. bpo: 33009
+.. date: 2018-03-06-11-54-59
+.. nonce: -Ekysb
+.. section: Library
+
+Fix inspect.signature() for single-parameter partialmethods.
+
+..
+
+.. bpo: 32969
+.. date: 2018-03-06-00-19-41
+.. nonce: rGTKa0
+.. section: Library
+
+Expose several missing constants in zlib and fix corresponding
+documentation.
+
+..
+
+.. bpo: 32056
+.. date: 2018-03-01-17-49-56
+.. nonce: IlpfgE
+.. section: Library
+
+Improved exceptions raised for invalid number of channels and sample width
+when read an audio file in modules :mod:`aifc`, :mod:`wave` and
+:mod:`sunau`.
+
+..
+
+.. bpo: 32844
+.. date: 2018-02-28-13-08-00
+.. nonce: u8tnAe
+.. section: Library
+
+Fix wrong redirection of a low descriptor (0 or 1) to stderr in subprocess
+if another low descriptor is closed.
+
+..
+
+.. bpo: 32857
+.. date: 2018-02-16-14-37-14
+.. nonce: -XljAx
+.. section: Library
+
+In :mod:`tkinter`, ``after_cancel(None)`` now raises a :exc:`ValueError`
+instead of canceling the first scheduled function. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31639
+.. date: 2017-12-27-21-55-19
+.. nonce: l3avDJ
+.. section: Library
+
+http.server now exposes a ThreadedHTTPServer class and uses it when the
+module is run with ``-m`` to cope with web browsers pre-opening sockets.
+
+..
+
+.. bpo: 27645
+.. date: 2017-10-05-20-41-48
+.. nonce: 1Y_Wag
+.. section: Library
+
+:class:`sqlite3.Connection` now exposes a
+:class:`~sqlite3.Connection.backup` method, if the underlying SQLite library
+is at version 3.6.11 or higher. Patch by Lele Gaifax.
+
+..
+
+.. bpo: 33126
+.. date: 2018-03-28-17-03-17
+.. nonce: 5UGkNv
+.. section: Documentation
+
+Document PyBuffer_ToContiguous().
+
+..
+
+.. bpo: 27212
+.. date: 2018-03-22-19-23-04
+.. nonce: wrE5KR
+.. section: Documentation
+
+Modify documentation for the :func:`islice` recipe to consume initial values
+up to the start index.
+
+..
+
+.. bpo: 28247
+.. date: 2018-03-20-20-11-05
+.. nonce: -V-WS-
+.. section: Documentation
+
+Update :mod:`zipapp` documentation to describe how to make standalone
+applications.
+
+..
+
+.. bpo: 18802
+.. date: 2018-03-11-18-53-47
+.. nonce: JhAqH3
+.. section: Documentation
+
+Documentation changes for ipaddress. Patch by Jon Foster and Berker Peksag.
+
+..
+
+.. bpo: 27428
+.. date: 2018-03-11-00-16-56
+.. nonce: B7A8FT
+.. section: Documentation
+
+Update documentation to clarify that ``WindowsRegistryFinder`` implements
+``MetaPathFinder``. (Patch by Himanshu Lakhara)
+
+..
+
+.. bpo: 32872
+.. date: 2018-03-28-01-35-02
+.. nonce: J5NDUj
+.. section: Tests
+
+Avoid regrtest compatibility issue with namespace packages.
+
+..
+
+.. bpo: 32517
+.. date: 2018-03-09-07-05-12
+.. nonce: ugc1iW
+.. section: Tests
+
+Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport of
+``KqueueSelector`` loop was not being closed.
+
+..
+
+.. bpo: 19417
+.. date: 2018-01-08-13-33-47
+.. nonce: 2asoXy
+.. section: Tests
+
+Add test_bdb.py.
+
+..
+
+.. bpo: 33163
+.. date: 2018-03-28-04-15-03
+.. nonce: hfpWuU
+.. section: Build
+
+Upgrade pip to 9.0.3 and setuptools to v39.0.1.
+
+..
+
+.. bpo: 33016
+.. date: 2018-03-07-01-33-33
+.. nonce: Z_Med0
+.. section: Windows
+
+Fix potential use of uninitialized memory in nt._getfinalpathname
+
+..
+
+.. bpo: 32903
+.. date: 2018-02-28-11-03-24
+.. nonce: 1SXY4t
+.. section: Windows
+
+Fix a memory leak in os.chdir() on Windows if the current directory is set
+to a UNC path.
+
+..
+
+.. bpo: 32726
+.. date: 2018-03-29-06-56-12
+.. nonce: urS9uX
+.. section: macOS
+
+Build and link with private copy of Tcl/Tk 8.6 for the macOS 10.6+
+installer. The 10.9+ installer variant already does this. This means that
+the Python 3.7 provided by the python.org macOS installers no longer need or
+use any external versions of Tcl/Tk, either system-provided or
+user-installed, such as ActiveTcl.
+
+..
+
+.. bpo: 32984
+.. date: 2018-03-05-01-29-05
+.. nonce: NGjgT4
+.. section: IDLE
+
+Set ``__file__`` while running a startup file. Like Python, IDLE optionally
+runs one startup file in the Shell window before presenting the first
+interactive input prompt. For IDLE, ``-s`` runs a file named in
+environmental variable :envvar:`IDLESTARTUP` or :envvar:`PYTHONSTARTUP`;
+``-r file`` runs ``file``. Python sets ``__file__`` to the startup file
+name before running the file and unsets it before the first prompt. IDLE
+now does the same when run normally, without the ``-n`` option.
+
+..
+
+.. bpo: 32940
+.. date: 2018-02-24-18-20-50
+.. nonce: ZaJ1Rf
+.. section: IDLE
+
+Simplify and rename StringTranslatePseudoMapping in pyparse.
+
+..
+
+.. bpo: 32885
+.. date: 2018-02-20-12-16-47
+.. nonce: dL5x7C
+.. section: Tools/Demos
+
+Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disable automatic
+backup creation (files with ``~`` suffix).
+
+..
+
+.. bpo: 33042
+.. date: 2018-03-20-21-43-09
+.. nonce: FPFp64
+.. section: C API
+
+Embedding applications may once again call PySys_ResetWarnOptions,
+PySys_AddWarnOption, and PySys_AddXOption prior to calling Py_Initialize.
+
+..
+
+.. bpo: 32374
+.. date: 2018-01-09-17-03-54
+.. nonce: SwwLoz
+.. section: C API
+
+Document that m_traverse for multi-phase initialized modules can be called
+with m_state=NULL, and add a sanity check
--- /dev/null
+.. bpo: 33363
+.. date: 2018-04-26-22-48-28
+.. nonce: 8RCnN2
+.. release date: 2018-05-02
+.. section: Core and Builtins
+
+Raise a SyntaxError for ``async with`` and ``async for`` statements outside
+of async functions.
+
+..
+
+.. bpo: 33128
+.. date: 2018-04-24-22-31-04
+.. nonce: g2yLuf
+.. section: Core and Builtins
+
+Fix a bug that causes PathFinder to appear twice on sys.meta_path. Patch by
+Pablo Galindo Salgado.
+
+..
+
+.. bpo: 33312
+.. date: 2018-04-19-08-30-07
+.. nonce: mDe2iL
+.. section: Core and Builtins
+
+Fixed clang ubsan (undefined behavior sanitizer) warnings in dictobject.c by
+adjusting how the internal struct _dictkeysobject shared keys structure is
+declared.
+
+..
+
+.. bpo: 33231
+.. date: 2018-04-05-22-20-44
+.. nonce: 3Jmo0q
+.. section: Core and Builtins
+
+Fix potential memory leak in ``normalizestring()``.
+
+..
+
+.. bpo: 33205
+.. date: 2018-04-03-00-58-41
+.. nonce: lk2F3r
+.. section: Core and Builtins
+
+Change dict growth function from
+``round_up_to_power_2(used*2+hashtable_size/2)`` to
+``round_up_to_power_2(used*3)``. Previously, dict is shrinked only when
+``used == 0``. Now dict has more chance to be shrinked.
+
+..
+
+.. bpo: 29922
+.. date: 2018-04-03-00-30-25
+.. nonce: CdLuMl
+.. section: Core and Builtins
+
+Improved error messages in 'async with' when ``__aenter__()`` or
+``__aexit__()`` return non-awaitable object.
+
+..
+
+.. bpo: 33199
+.. date: 2018-04-02-09-32-40
+.. nonce: TPnxQu
+.. section: Core and Builtins
+
+Fix ``ma_version_tag`` in dict implementation is uninitialized when copying
+from key-sharing dict.
+
+..
+
+.. bpo: 33281
+.. date: 2018-05-01-22-35-50
+.. nonce: d4jOt4
+.. section: Library
+
+Fix ctypes.util.find_library regression on macOS.
+
+..
+
+.. bpo: 33383
+.. date: 2018-04-29-11-15-38
+.. nonce: g32YWn
+.. section: Library
+
+Fixed crash in the get() method of the :mod:`dbm.ndbm` database object when
+it is called with a single argument.
+
+..
+
+.. bpo: 33329
+.. date: 2018-04-23-13-21-39
+.. nonce: lQ-Eod
+.. section: Library
+
+Fix multiprocessing regression on newer glibcs
+
+..
+
+.. bpo: 991266
+.. date: 2018-04-21-00-24-08
+.. nonce: h93TP_
+.. section: Library
+
+Fix quoting of the ``Comment`` attribute of
+:class:`http.cookies.SimpleCookie`.
+
+..
+
+.. bpo: 33131
+.. date: 2018-04-20-10-43-17
+.. nonce: L2E977
+.. section: Library
+
+Upgrade bundled version of pip to 10.0.1.
+
+..
+
+.. bpo: 33308
+.. date: 2018-04-18-19-12-25
+.. nonce: fW75xi
+.. section: Library
+
+Fixed a crash in the :mod:`parser` module when converting an ST object to a
+tree of tuples or lists with ``line_info=False`` and ``col_info=True``.
+
+..
+
+.. bpo: 33266
+.. date: 2018-04-16-15-59-21
+.. nonce: w2PAm-
+.. section: Library
+
+lib2to3 now recognizes ``rf'...'`` strings.
+
+..
+
+.. bpo: 11594
+.. date: 2018-04-16-08-42-03
+.. nonce: QLo4vv
+.. section: Library
+
+Ensure line-endings are respected when using lib2to3.
+
+..
+
+.. bpo: 33254
+.. date: 2018-04-13-15-14-47
+.. nonce: DS4KFK
+.. section: Library
+
+Have :func:`importlib.resources.contents` and
+:meth:`importlib.abc.ResourceReader.contents` return an :term:`iterable`
+instead of an :term:`iterator`.
+
+..
+
+.. bpo: 33256
+.. date: 2018-04-10-20-57-14
+.. nonce: ndHkqu
+.. section: Library
+
+Fix display of ``<module>`` call in the html produced by ``cgitb.html()``.
+Patch by Stéphane Blondon.
+
+..
+
+.. bpo: 33185
+.. date: 2018-04-08-22-54-07
+.. nonce: Id-Ba9
+.. section: Library
+
+Fixed regression when running pydoc with the :option:`-m` switch. (The
+regression was introduced in 3.7.0b3 by the resolution of :issue:`33053`)
+This fix also changed pydoc to add ``os.getcwd()`` to :data:`sys.path` when
+necessary, rather than adding ``"."``.
+
+..
+
+.. bpo: 33169
+.. date: 2018-04-06-14-56-26
+.. nonce: ByhDqb
+.. section: Library
+
+Delete entries of ``None`` in :data:`sys.path_importer_cache` when
+:meth:`importlib.machinery.invalidate_caches` is called.
+
+..
+
+.. bpo: 33217
+.. date: 2018-04-05-13-36-09
+.. nonce: FfOKDI
+.. section: Library
+
+Deprecate looking up non-Enum objects in Enum classes and Enum members (will
+raise :exc:`TypeError` in 3.8+).
+
+..
+
+.. bpo: 33203
+.. date: 2018-04-05-11-09-45
+.. nonce: Hje9Py
+.. section: Library
+
+``random.Random.choice()`` now raises ``IndexError`` for empty sequences
+consistently even when called from subclasses without a ``getrandbits()``
+implementation.
+
+..
+
+.. bpo: 33224
+.. date: 2018-04-04-23-41-30
+.. nonce: pyR0jB
+.. section: Library
+
+Update difflib.mdiff() for :pep:`479`. Convert an uncaught StopIteration in a
+generator into a return-statement.
+
+..
+
+.. bpo: 33209
+.. date: 2018-04-03-10-37-13
+.. nonce: 9sGWE_
+.. section: Library
+
+End framing at the end of C implementation of :func:`pickle.Pickler.dump`.
+
+..
+
+.. bpo: 20104
+.. date: 2018-04-01-19-21-04
+.. nonce: -AKcGa
+.. section: Library
+
+Improved error handling and fixed a reference leak in
+:func:`os.posix_spawn()`.
+
+..
+
+.. bpo: 33175
+.. date: 2018-03-29-04-32-25
+.. nonce: _zs1yM
+.. section: Library
+
+In dataclasses, Field.__set_name__ now looks up the __set_name__ special
+method on the class, not the instance, of the default value.
+
+..
+
+.. bpo: 33097
+.. date: 2018-03-18-16-48-23
+.. nonce: Yl4gI2
+.. section: Library
+
+Raise RuntimeError when ``executor.submit`` is called during interpreter
+shutdown.
+
+..
+
+.. bpo: 31908
+.. date: 2017-10-31
+.. nonce: g4xh8x
+.. section: Library
+
+Fix output of cover files for ``trace`` module command-line tool. Previously
+emitted cover files only when ``--missing`` option was used. Patch by
+Michael Selik.
+
+..
+
+.. bpo: 33378
+.. date: 2018-04-29-04-02-18
+.. nonce: -anAHN
+.. section: Documentation
+
+Add Korean language switcher for https://docs.python.org/3/
+
+..
+
+.. bpo: 33276
+.. date: 2018-04-20-14-09-36
+.. nonce: rA1z_3
+.. section: Documentation
+
+Clarify that the ``__path__`` attribute on modules cannot be just any value.
+
+..
+
+.. bpo: 33201
+.. date: 2018-04-01-21-03-41
+.. nonce: aa8Lkl
+.. section: Documentation
+
+Modernize documentation for writing C extension types.
+
+..
+
+.. bpo: 33195
+.. date: 2018-04-01-14-30-36
+.. nonce: dRS-XX
+.. section: Documentation
+
+Deprecate ``Py_UNICODE`` usage in ``c-api/arg`` document. ``Py_UNICODE``
+related APIs are deprecated since Python 3.3, but it is missed in the
+document.
+
+..
+
+.. bpo: 8243
+.. date: 2018-01-13-20-30-53
+.. nonce: s98r28
+.. section: Documentation
+
+Add a note about curses.addch and curses.addstr exception behavior when
+writing outside a window, or pad.
+
+..
+
+.. bpo: 32337
+.. date: 2017-12-22-17-29-37
+.. nonce: eZe-ID
+.. section: Documentation
+
+Update documentation related with ``dict`` order.
+
+..
+
+.. bpo: 33358
+.. date: 2018-04-27-11-46-35
+.. nonce: _OcR59
+.. section: Tests
+
+Fix ``test_embed.test_pre_initialization_sys_options()`` when the
+interpreter is built with ``--enable-shared``.
+
+..
+
+.. bpo: 33394
+.. date: 2018-04-30-17-36-46
+.. nonce: _Vdi4t
+.. section: Build
+
+Enable the verbose build for extension modules, when GNU make is passed
+macros on the command line.
+
+..
+
+.. bpo: 33393
+.. date: 2018-04-30-17-19-37
+.. nonce: HkVCqI
+.. section: Build
+
+Update config.guess and config.sub files.
+
+..
+
+.. bpo: 33377
+.. date: 2018-04-30-16-53-00
+.. nonce: QBh6vP
+.. section: Build
+
+Add new triplets for mips r6 and riscv variants (used in extension
+suffixes).
+
+..
+
+.. bpo: 32232
+.. date: 2018-04-17-00-38-19
+.. nonce: o7G_UO
+.. section: Build
+
+By default, modules configured in `Modules/Setup` are no longer built with
+`-DPy_BUILD_CORE`. Instead, modules that specifically need that preprocessor
+definition include it in their individual entries.
+
+..
+
+.. bpo: 33182
+.. date: 2018-03-30-14-55-48
+.. nonce: CePczb
+.. section: Build
+
+The embedding tests can once again be built with clang 6.0
+
+..
+
+.. bpo: 33184
+.. date: 2018-04-13-11-28-55
+.. nonce: 7YhqQE
+.. section: Windows
+
+Update Windows installer to use OpenSSL 1.1.0h.
+
+..
+
+.. bpo: 33184
+.. date: 2018-04-07-00-51-34
+.. nonce: 3j208P
+.. section: macOS
+
+Update macOS installer build to use OpenSSL 1.1.0h.
+
+..
+
+.. bpo: 21474
+.. date: 2018-04-29-16-13-02
+.. nonce: bglg-F
+.. section: IDLE
+
+Update word/identifier definition from ascii to unicode. In text and entry
+boxes, this affects selection by double-click, movement left/right by
+control-left/right, and deletion left/right by control-BACKSPACE/DEL.
+
+..
+
+.. bpo: 33204
+.. date: 2018-04-02-00-28-13
+.. nonce: NBsuIv
+.. section: IDLE
+
+IDLE: consistently color invalid string prefixes. A 'u' string prefix cannot
+be paired with either 'r' or 'f'. Consistently color as much of the prefix,
+starting at the right, as is valid. Revise and extend colorizer test.
+
+..
+
+.. bpo: 33189
+.. date: 2018-04-03-18-10-00
+.. nonce: QrXR00
+.. section: Tools/Demos
+
+:program:`pygettext.py` now recognizes only literal strings as docstrings
+and translatable strings, and rejects bytes literals and f-string
+expressions.
+
+..
+
+.. bpo: 31920
+.. date: 2018-03-26-18-54-24
+.. nonce: u_WKsT
+.. section: Tools/Demos
+
+Fixed handling directories as arguments in the ``pygettext`` script. Based
+on patch by Oleg Krasnikov.
+
+..
+
+.. bpo: 29673
+.. date: 2018-03-16-17-25-05
+.. nonce: m8QtaW
+.. section: Tools/Demos
+
+Fix pystackv and pystack gdbinit macros.
+
+..
+
+.. bpo: 31583
+.. date: 2017-09-26-10-11-21
+.. nonce: TM90_H
+.. section: Tools/Demos
+
+Fix 2to3 for using with --add-suffix option but without --output-dir option
+for relative path to files in current directory.
--- /dev/null
+.. bpo: 33622
+.. date: 2018-05-23-20-46-14
+.. nonce: xPucO9
+.. release date: 2018-05-30
+.. section: Core and Builtins
+
+Fixed a leak when the garbage collector fails to add an object with the
+``__del__`` method or referenced by it into the :data:`gc.garbage` list.
+:c:func:`PyGC_Collect` can now be called when an exception is set and
+preserves it.
+
+..
+
+.. bpo: 33509
+.. date: 2018-05-14-17-31-02
+.. nonce: pIUfTd
+.. section: Core and Builtins
+
+Fix module_globals parameter of warnings.warn_explicit(): don't crash if
+module_globals is not a dict.
+
+..
+
+.. bpo: 20104
+.. date: 2018-05-14-11-34-55
+.. nonce: kqBNzv
+.. section: Core and Builtins
+
+The new `os.posix_spawn` added in 3.7.0b1 was removed as we are still
+working on what the API should look like. Expect this in 3.8 instead.
+
+..
+
+.. bpo: 33475
+.. date: 2018-05-13-01-26-18
+.. nonce: rI0y1U
+.. section: Core and Builtins
+
+Fixed miscellaneous bugs in converting annotations to strings and optimized
+parentheses in the string representation.
+
+..
+
+.. bpo: 33391
+.. date: 2018-05-02-08-36-03
+.. nonce: z4a7rb
+.. section: Core and Builtins
+
+Fix a leak in set_symmetric_difference().
+
+..
+
+.. bpo: 28055
+.. date: 2018-04-25-20-44-42
+.. nonce: f49kfC
+.. section: Core and Builtins
+
+Fix unaligned accesses in siphash24(). Patch by Rolf Eike Beer.
+
+..
+
+.. bpo: 32911
+.. date: 2018-02-27-20-57-00
+.. nonce: cmKfco
+.. section: Core and Builtins
+
+Due to unexpected compatibility issues discovered during downstream beta
+testing, reverted :issue:`29463`. ``docstring`` field is removed from
+Module, ClassDef, FunctionDef, and AsyncFunctionDef ast nodes which was
+added in 3.7a1. Docstring expression is restored as a first statement in
+their body. Based on patch by Inada Naoki.
+
+..
+
+.. bpo: 21983
+.. date: 2017-10-02-21-02-14
+.. nonce: UoC319
+.. section: Core and Builtins
+
+Fix a crash in `ctypes.cast()` in case the type argument is a ctypes
+structured data type. Patch by Eryk Sun and Oren Milman.
+
+..
+
+.. bpo: 32751
+.. date: 2018-05-29-15-32-18
+.. nonce: oBTqr7
+.. section: Library
+
+When cancelling the task due to a timeout, :meth:`asyncio.wait_for` will now
+wait until the cancellation is complete.
+
+..
+
+.. bpo: 32684
+.. date: 2018-05-29-12-51-18
+.. nonce: ZEIism
+.. section: Library
+
+Fix gather to propagate cancellation of itself even with return_exceptions.
+
+..
+
+.. bpo: 33654
+.. date: 2018-05-29-01-13-39
+.. nonce: sa81Si
+.. section: Library
+
+Support protocol type switching in SSLTransport.set_protocol().
+
+..
+
+.. bpo: 33674
+.. date: 2018-05-29-00-37-56
+.. nonce: 2IkGhL
+.. section: Library
+
+Pause the transport as early as possible to further reduce the risk of
+data_received() being called before connection_made().
+
+..
+
+.. bpo: 33674
+.. date: 2018-05-28-22-49-59
+.. nonce: 6LFFj7
+.. section: Library
+
+Fix a race condition in SSLProtocol.connection_made() of asyncio.sslproto:
+start immediately the handshake instead of using call_soon(). Previously,
+data_received() could be called before the handshake started, causing the
+handshake to hang or fail.
+
+..
+
+.. bpo: 31647
+.. date: 2018-05-28-18-40-26
+.. nonce: s4Fad3
+.. section: Library
+
+Fixed bug where calling write_eof() on a _SelectorSocketTransport after it's
+already closed raises AttributeError.
+
+..
+
+.. bpo: 32610
+.. date: 2018-05-28-16-40-32
+.. nonce: KvUAsL
+.. section: Library
+
+Make asyncio.all_tasks() return only pending tasks.
+
+..
+
+.. bpo: 32410
+.. date: 2018-05-28-16-19-35
+.. nonce: Z1DZaF
+.. section: Library
+
+Avoid blocking on file IO in sendfile fallback code
+
+..
+
+.. bpo: 33469
+.. date: 2018-05-28-15-55-12
+.. nonce: hmXBpY
+.. section: Library
+
+Fix RuntimeError after closing loop that used run_in_executor
+
+..
+
+.. bpo: 33672
+.. date: 2018-05-28-12-29-54
+.. nonce: GM_Xm_
+.. section: Library
+
+Fix Task.__repr__ crash with Cython's bogus coroutines
+
+..
+
+.. bpo: 33654
+.. date: 2018-05-26-13-09-34
+.. nonce: IbYWxA
+.. section: Library
+
+Fix transport.set_protocol() to support switching between asyncio.Protocol
+and asyncio.BufferedProtocol. Fix loop.start_tls() to work with
+asyncio.BufferedProtocols.
+
+..
+
+.. bpo: 33652
+.. date: 2018-05-26-10-13-59
+.. nonce: humFJ1
+.. section: Library
+
+Pickles of type variables and subscripted generics are now future-proof and
+compatible with older Python versions.
+
+..
+
+.. bpo: 32493
+.. date: 2018-05-24-17-41-36
+.. nonce: 5tAoAu
+.. section: Library
+
+Fixed :func:`uuid.uuid1` on FreeBSD.
+
+..
+
+.. bpo: 33618
+.. date: 2018-05-23-20-14-34
+.. nonce: xU39lr
+.. section: Library
+
+Finalize and document preliminary and experimental TLS 1.3 support with
+OpenSSL 1.1.1
+
+..
+
+.. bpo: 33623
+.. date: 2018-05-23-14-58-05
+.. nonce: wAw1cF
+.. section: Library
+
+Fix possible SIGSGV when asyncio.Future is created in __del__
+
+..
+
+.. bpo: 30877
+.. date: 2018-05-22-13-05-12
+.. nonce: JZEGjI
+.. section: Library
+
+Fixed a bug in the Python implementation of the JSON decoder that prevented
+the cache of parsed strings from clearing after finishing the decoding.
+Based on patch by c-fos.
+
+..
+
+.. bpo: 33570
+.. date: 2018-05-18-21-50-47
+.. nonce: 7CZy4t
+.. section: Library
+
+Change TLS 1.3 cipher suite settings for compatibility with OpenSSL
+1.1.1-pre6 and newer. OpenSSL 1.1.1 will have TLS 1.3 ciphers enabled by
+default.
+
+..
+
+.. bpo: 28556
+.. date: 2018-05-17-22-53-08
+.. nonce: C6Hnd1
+.. section: Library
+
+Do not simplify arguments to `typing.Union`. Now `Union[Manager, Employee]`
+is not simplified to `Employee` at runtime. Such simplification previously
+caused several bugs and limited possibilities for introspection.
+
+..
+
+.. bpo: 33540
+.. date: 2018-05-16-18-10-38
+.. nonce: wy9LRV
+.. section: Library
+
+Add a new ``block_on_close`` class attribute to ``ForkingMixIn`` and
+``ThreadingMixIn`` classes of :mod:`socketserver`.
+
+..
+
+.. bpo: 33548
+.. date: 2018-05-16-17-05-48
+.. nonce: xWslmx
+.. section: Library
+
+tempfile._candidate_tempdir_list should consider common TEMP locations
+
+..
+
+.. bpo: 33109
+.. date: 2018-05-16-14-57-58
+.. nonce: nPLL_S
+.. section: Library
+
+argparse subparsers are once again not required by default, reverting the
+change in behavior introduced by bpo-26510 in 3.7.0a2.
+
+..
+
+.. bpo: 33536
+.. date: 2018-05-16-10-07-40
+.. nonce: _s0TE8
+.. section: Library
+
+dataclasses.make_dataclass now checks for invalid field names and duplicate
+fields. Also, added a check for invalid field specifications.
+
+..
+
+.. bpo: 33542
+.. date: 2018-05-16-09-30-27
+.. nonce: idNAcs
+.. section: Library
+
+Prevent ``uuid.get_node`` from using a DUID instead of a MAC on Windows.
+Patch by Zvi Effron
+
+..
+
+.. bpo: 26819
+.. date: 2018-05-16-05-24-43
+.. nonce: taxbVT
+.. section: Library
+
+Fix race condition with `ReadTransport.resume_reading` in Windows proactor
+event loop.
+
+..
+
+.. bpo: 0
+.. date: 2018-05-15-18-02-03
+.. nonce: pj2Mbb
+.. section: Library
+
+Fix failure in `typing.get_type_hints()` when ClassVar was provided as a
+string forward reference.
+
+..
+
+.. bpo: 33505
+.. date: 2018-05-14-18-05-35
+.. nonce: L8pAyt
+.. section: Library
+
+Optimize asyncio.ensure_future() by reordering if checks: 1.17x faster.
+
+..
+
+.. bpo: 33497
+.. date: 2018-05-14-17-49-34
+.. nonce: wWT6XM
+.. section: Library
+
+Add errors param to cgi.parse_multipart and make an encoding in FieldStorage
+use the given errors (needed for Twisted). Patch by Amber Brown.
+
+..
+
+.. bpo: 33495
+.. date: 2018-05-14-10-29-03
+.. nonce: TeGTQJ
+.. section: Library
+
+Change dataclasses.Fields repr to use the repr of each of its members,
+instead of str. This makes it more clear what each field actually
+represents. This is especially true for the 'type' member.
+
+..
+
+.. bpo: 33453
+.. date: 2018-05-12-06-01-02
+.. nonce: Fj-jMD
+.. section: Library
+
+Fix dataclasses to work if using literal string type annotations or if using
+PEP 563 "Postponed Evaluation of Annotations". Only specific string
+prefixes are detected for both ClassVar ("ClassVar" and "typing.ClassVar")
+and InitVar ("InitVar" and "dataclasses.InitVar").
+
+..
+
+.. bpo: 28556
+.. date: 2018-05-08-16-43-42
+.. nonce: _xr5mp
+.. section: Library
+
+Minor fixes in typing module: add annotations to ``NamedTuple.__new__``,
+pass ``*args`` and ``**kwds`` in ``Generic.__new__``. Original PRs by
+Paulius Šarka and Chad Dombrova.
+
+..
+
+.. bpo: 20087
+.. date: 2018-05-05-18-02-24
+.. nonce: lJrvXL
+.. section: Library
+
+Updated alias mapping with glibc 2.27 supported locales.
+
+..
+
+.. bpo: 33422
+.. date: 2018-05-05-09-53-05
+.. nonce: 4FtQ0q
+.. section: Library
+
+Fix trailing quotation marks getting deleted when looking up byte/string
+literals on pydoc. Patch by Andrés Delfino.
+
+..
+
+.. bpo: 28167
+.. date: 2018-05-02-07-26-29
+.. nonce: 7FwDfN
+.. section: Library
+
+The function ``platform.linux_distribution`` and ``platform.dist`` now
+trigger a ``DeprecationWarning`` and have been marked for removal in Python
+3.8
+
+..
+
+.. bpo: 33197
+.. date: 2018-04-29-23-56-20
+.. nonce: dgRLqr
+.. section: Library
+
+Update error message when constructing invalid inspect.Parameters Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 33263
+.. date: 2018-04-11-20-29-19
+.. nonce: B56Hc1
+.. section: Library
+
+Fix FD leak in `_SelectorSocketTransport` Patch by Vlad Starostin.
+
+..
+
+.. bpo: 32861
+.. date: 2018-04-02-20-44-54
+.. nonce: HeBjzN
+.. section: Library
+
+The urllib.robotparser's ``__str__`` representation now includes wildcard
+entries and the "Crawl-delay" and "Request-rate" fields. Patch by Michael
+Lazar.
+
+..
+
+.. bpo: 32257
+.. date: 2018-02-26-09-08-07
+.. nonce: 6ElnUt
+.. section: Library
+
+The ssl module now contains OP_NO_RENEGOTIATION constant, available with
+OpenSSL 1.1.0h or 1.1.1.
+
+..
+
+.. bpo: 16865
+.. date: 2017-09-29-16-40-38
+.. nonce: l-f6I_
+.. section: Library
+
+Support arrays >=2GiB in :mod:`ctypes`. Patch by Segev Finer.
+
+..
+
+.. bpo: 23859
+.. date: 2018-05-29-16-02-31
+.. nonce: E5gba1
+.. section: Documentation
+
+Document that `asyncio.wait()` does not cancel its futures on timeout.
+
+..
+
+.. bpo: 32436
+.. date: 2018-05-23-11-59-51
+.. nonce: S1LGPa
+.. section: Documentation
+
+Document :pep:`567` changes to asyncio.
+
+..
+
+.. bpo: 33604
+.. date: 2018-05-22-11-47-14
+.. nonce: 5YHTpz
+.. section: Documentation
+
+Update HMAC md5 default to a DeprecationWarning, bump removal to 3.8.
+
+..
+
+.. bpo: 33503
+.. date: 2018-05-14-20-08-58
+.. nonce: Wvt0qg
+.. section: Documentation
+
+Fix broken pypi link
+
+..
+
+.. bpo: 33421
+.. date: 2018-05-14-15-15-41
+.. nonce: 3GU_QO
+.. section: Documentation
+
+Add missing documentation for ``typing.AsyncContextManager``.
+
+..
+
+.. bpo: 33655
+.. date: 2018-05-26-16-01-40
+.. nonce: Frb4LA
+.. section: Tests
+
+Ignore test_posix_fallocate failures on BSD platforms that might be due to
+running on ZFS.
+
+..
+
+.. bpo: 32604
+.. date: 2018-05-14-13-32-46
+.. nonce: a_z6D_
+.. section: Tests
+
+Remove the _xxsubinterpreters module (meant for testing) and associated
+helpers. This module was originally added recently in 3.7b1.
+
+..
+
+.. bpo: 33614
+.. date: 2018-05-28-11-40-22
+.. nonce: 28e0sE
+.. section: Build
+
+Ensures module definition files for the stable ABI on Windows are correctly
+regenerated.
+
+..
+
+.. bpo: 33522
+.. date: 2018-05-15-12-44-50
+.. nonce: mJoNcA
+.. section: Build
+
+Enable CI builds on Visual Studio Team Services at
+https://python.visualstudio.com/cpython
+
+..
+
+.. bpo: 33012
+.. date: 2018-05-10-21-10-01
+.. nonce: 5Zfjac
+.. section: Build
+
+Add ``-Wno-cast-function-type`` for gcc 8 for silencing warnings about
+function casts like casting to PyCFunction in method definition lists.
+
+..
+
+.. bpo: 13631
+.. date: 2018-05-16-13-25-58
+.. nonce: UIjDyY
+.. section: macOS
+
+The .editrc file in user's home directory is now processed correctly during
+the readline initialization through editline emulation on macOS.
+
+..
+
+.. bpo: 33628
+.. date: 2018-05-23-19-51-07
+.. nonce: sLlFLO
+.. section: IDLE
+
+IDLE: Cleanup codecontext.py and its test.
+
+..
+
+.. bpo: 33564
+.. date: 2018-05-17-19-41-12
+.. nonce: XzHZJe
+.. section: IDLE
+
+IDLE's code context now recognizes async as a block opener.
+
+..
+
+.. bpo: 32831
+.. date: 2018-02-12-08-08-45
+.. nonce: srDRvU
+.. section: IDLE
+
+Add docstrings and tests for codecontext.
--- /dev/null
+.. bpo: 33803
+.. date: 2018-06-07-20-18-38
+.. nonce: n-Nq6_
+.. release date: 2018-06-12
+.. section: Core and Builtins
+
+Fix a crash in hamt.c caused by enabling GC tracking for an object that
+hadn't all of its fields set to NULL.
+
+..
+
+.. bpo: 33706
+.. date: 2018-05-31-14-50-04
+.. nonce: ztlH04
+.. section: Core and Builtins
+
+Fix a crash in Python initialization when parsing the command line options.
+Thanks Christoph Gohlke for the bug report and the fix!
+
+..
+
+.. bpo: 30654
+.. date: 2018-05-28-12-28-53
+.. nonce: 9fDJye
+.. section: Core and Builtins
+
+Fixed reset of the SIGINT handler to SIG_DFL on interpreter shutdown even
+when there was a custom handler set previously. Patch by Philipp Kerling.
+
+..
+
+.. bpo: 31849
+.. date: 2018-05-14-11-00-00
+.. nonce: EmHaH4
+.. section: Core and Builtins
+
+Fix signed/unsigned comparison warning in pyhash.c.
+
+..
+
+.. bpo: 30167
+.. date: 2018-06-10-19-29-17
+.. nonce: G5EgC5
+.. section: Library
+
+Prevent site.main() exception if PYTHONSTARTUP is set. Patch by Steve Weber.
+
+..
+
+.. bpo: 33812
+.. date: 2018-06-10-13-26-02
+.. nonce: frGAOr
+.. section: Library
+
+Datetime instance d with non-None tzinfo, but with d.tzinfo.utcoffset(d)
+returning None is now treated as naive by the astimezone() method.
+
+..
+
+.. bpo: 30805
+.. date: 2018-06-08-17-34-16
+.. nonce: 3qCWa0
+.. section: Library
+
+Avoid race condition with debug logging
+
+..
+
+.. bpo: 33694
+.. date: 2018-06-07-23-51-00
+.. nonce: F1zIR1
+.. section: Library
+
+asyncio: Fix a race condition causing data loss on
+pause_reading()/resume_reading() when using the ProactorEventLoop.
+
+..
+
+.. bpo: 32493
+.. date: 2018-06-07-18-55-35
+.. nonce: 1Bte62
+.. section: Library
+
+Correct test for ``uuid_enc_be`` availability in ``configure.ac``. Patch by
+Michael Felt.
+
+..
+
+.. bpo: 33792
+.. date: 2018-06-07-12-38-12
+.. nonce: 3aKG7u
+.. section: Library
+
+Add asyncio.WindowsSelectorEventLoopPolicy and
+asyncio.WindowsProactorEventLoopPolicy.
+
+..
+
+.. bpo: 33778
+.. date: 2018-06-05-20-22-30
+.. nonce: _tSAS6
+.. section: Library
+
+Update ``unicodedata``'s database to Unicode version 11.0.0.
+
+..
+
+.. bpo: 33770
+.. date: 2018-06-05-11-29-26
+.. nonce: oBhxxw
+.. section: Library
+
+improve base64 exception message for encoded inputs of invalid length
+
+..
+
+.. bpo: 33769
+.. date: 2018-06-04-13-46-39
+.. nonce: D_pxYz
+.. section: Library
+
+asyncio/start_tls: Fix error message; cancel callbacks in case of an
+unhandled error; mark SSLTransport as closed if it is aborted.
+
+..
+
+.. bpo: 33767
+.. date: 2018-06-03-22-41-59
+.. nonce: 2e82g3
+.. section: Library
+
+The concatenation (``+``) and repetition (``*``) sequence operations now
+raise :exc:`TypeError` instead of :exc:`SystemError` when performed on
+:class:`mmap.mmap` objects. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 33734
+.. date: 2018-06-01-10-55-48
+.. nonce: x1W9x0
+.. section: Library
+
+asyncio/ssl: Fix AttributeError, increase default handshake timeout
+
+..
+
+.. bpo: 11874
+.. date: 2018-05-23-00-26-27
+.. nonce: glK5iP
+.. section: Library
+
+Use a better regex when breaking usage into wrappable parts. Avoids bogus
+assertion errors from custom metavar strings.
+
+..
+
+.. bpo: 33582
+.. date: 2018-05-19-15-58-14
+.. nonce: qBZPmF
+.. section: Library
+
+Emit a deprecation warning for inspect.formatargspec
+
+..
+
+.. bpo: 33409
+.. date: 2018-06-08-23-46-01
+.. nonce: r4z9MM
+.. section: Documentation
+
+Clarified the relationship between :pep:`538`'s PYTHONCOERCECLOCALE and PEP
+540's PYTHONUTF8 mode.
+
+..
+
+.. bpo: 33736
+.. date: 2018-06-01-12-27-40
+.. nonce: JVegIu
+.. section: Documentation
+
+Improve the documentation of :func:`asyncio.open_connection`,
+:func:`asyncio.start_server` and their UNIX socket counterparts.
+
+..
+
+.. bpo: 31432
+.. date: 2017-09-13-07-14-59
+.. nonce: yAY4Z3
+.. section: Documentation
+
+Clarify meaning of CERT_NONE, CERT_OPTIONAL, and CERT_REQUIRED flags for
+ssl.SSLContext.verify_mode.
+
+..
+
+.. bpo: 5755
+.. date: 2018-06-04-21-34-34
+.. nonce: 65GmCj
+.. section: Build
+
+Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from ``OPT``. This
+option emitted annoying warnings when building extension modules written in
+C++.
+
+..
+
+.. bpo: 33720
+.. date: 2018-06-04-09-20-53
+.. nonce: VKDXHK
+.. section: Windows
+
+Reduces maximum marshal recursion depth on release builds.
+
+..
+
+.. bpo: 33656
+.. date: 2018-06-10-17-59-36
+.. nonce: 60ZqJS
+.. section: IDLE
+
+On Windows, add API call saying that tk scales for DPI. On Windows 8.1+ or
+10, with DPI compatibility properties of the Python binary unchanged, and a
+monitor resolution greater than 96 DPI, this should make text and lines
+sharper. It should otherwise have no effect.
+
+..
+
+.. bpo: 33768
+.. date: 2018-06-04-19-23-11
+.. nonce: I_2qpV
+.. section: IDLE
+
+Clicking on a context line moves that line to the top of the editor window.
+
+..
+
+.. bpo: 33763
+.. date: 2018-06-03-20-12-57
+.. nonce: URiFlE
+.. section: IDLE
+
+IDLE: Use read-only text widget for code context instead of label widget.
+
+..
+
+.. bpo: 33664
+.. date: 2018-06-03-09-13-28
+.. nonce: PZzQyL
+.. section: IDLE
+
+Scroll IDLE editor text by lines. Previously, the mouse wheel and scrollbar
+slider moved text by a fixed number of pixels, resulting in partial lines at
+the top of the editor box. The change also applies to the shell and grep
+output windows, but not to read-only text views.
+
+..
+
+.. bpo: 33679
+.. date: 2018-05-29-07-14-37
+.. nonce: MgX_Ui
+.. section: IDLE
+
+Enable theme-specific color configuration for Code Context. Use the
+Highlights tab to see the setting for built-in themes or add settings to
+custom themes.
+
+..
+
+.. bpo: 33642
+.. date: 2018-05-24-20-42-44
+.. nonce: J0VQbS
+.. section: IDLE
+
+Display up to maxlines non-blank lines for Code Context. If there is no
+current context, show a single blank line.
--- /dev/null
+.. bpo: 35746
+.. date: 2019-01-15-18-16-05
+.. nonce: nMSd0j
+.. release date: 2019-02-03
+.. section: Security
+
+[CVE-2019-5010] Fix a NULL pointer deref in ssl module. The cert parser did
+not handle CRL distribution points with empty DP or URI correctly. A
+malicious or buggy certificate can result into segfault. Vulnerability
+(TALOS-2018-0758) reported by Colin Read and Nicolas Edet of Cisco.
+
+..
+
+.. bpo: 34812
+.. date: 2018-11-23-15-00-23
+.. nonce: 84VQnb
+.. section: Security
+
+The :option:`-I` command line option (run Python in isolated mode) is now
+also copied by the :mod:`multiprocessing` and :mod:`distutils` modules when
+spawning child processes. Previously, only :option:`-E` and :option:`-s`
+options (enabled by :option:`-I`) were copied.
+
+..
+
+.. bpo: 34791
+.. date: 2018-09-24-18-49-25
+.. nonce: 78GmIG
+.. section: Security
+
+The xml.sax and xml.dom.domreg no longer use environment variables to
+override parser implementations when sys.flags.ignore_environment is set by
+-E or -I arguments.
+
+..
+
+.. bpo: 17239
+.. date: 2018-09-11-18-30-55
+.. nonce: kOpwK2
+.. section: Security
+
+The xml.sax and xml.dom.minidom parsers no longer processes external
+entities by default. External DTD and ENTITY declarations no longer load
+files or create network connections.
+
+..
+
+.. bpo: 34623
+.. date: 2018-09-10-16-05-39
+.. nonce: Ua9jMv
+.. section: Security
+
+CVE-2018-14647: The C accelerated _elementtree module now initializes hash
+randomization salt from _Py_HashSecret instead of libexpat's default CSPRNG.
+
+..
+
+.. bpo: 34405
+.. date: 2018-08-15-12-12-47
+.. nonce: qbHTH_
+.. section: Security
+
+Updated to OpenSSL 1.1.0i for Windows builds.
+
+..
+
+.. bpo: 33871
+.. date: 2018-06-26-19-35-33
+.. nonce: S4HR9n
+.. section: Security
+
+Fixed sending the part of the file in :func:`os.sendfile` on macOS. Using
+the *trailers* argument could cause sending more bytes from the input file
+than was specified.
+
+..
+
+.. bpo: 32533
+.. date: 2018-05-28-08-55-30
+.. nonce: IzwkBI
+.. section: Security
+
+Fixed thread-safety of error handling in _ssl.
+
+..
+
+.. bpo: 33136
+.. date: 2018-03-25-12-05-43
+.. nonce: TzSN4x
+.. section: Security
+
+Harden ssl module against LibreSSL CVE-2018-8970.
+X509_VERIFY_PARAM_set1_host() is called with an explicit namelen. A new test
+ensures that NULL bytes are not allowed.
+
+..
+
+.. bpo: 33001
+.. date: 2018-03-05-10-09-51
+.. nonce: elj4Aa
+.. section: Security
+
+Minimal fix to prevent buffer overrun in os.symlink on Windows
+
+..
+
+.. bpo: 32981
+.. date: 2018-03-02-10-24-52
+.. nonce: O_qDyj
+.. section: Security
+
+Regexes in difflib and poplib were vulnerable to catastrophic backtracking.
+These regexes formed potential DOS vectors (REDOS). They have been
+refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch by Jamie
+Davis.
+
+..
+
+.. bpo: 28414
+.. date: 2017-08-06-14-43-45
+.. nonce: mzZ6vD
+.. section: Security
+
+The ssl module now allows users to perform their own IDN en/decoding when
+using SNI.
+
+..
+
+.. bpo: 35877
+.. date: 2019-02-01-22-38-11
+.. nonce: Jrse8f
+.. section: Core and Builtins
+
+Make parenthesis optional for named expressions in while statement. Patch by
+Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 35814
+.. date: 2019-01-24-13-25-21
+.. nonce: r_MjA6
+.. section: Core and Builtins
+
+Allow same right hand side expressions in annotated assignments as in normal
+ones. In particular, ``x: Tuple[int, int] = 1, 2`` (without parentheses on
+the right) is now allowed.
+
+..
+
+.. bpo: 35766
+.. date: 2019-01-22-19-17-27
+.. nonce: gh1tHZ
+.. section: Core and Builtins
+
+Add the option to parse PEP 484 type comments in the ast module. (Off by
+default.) This is merging the key functionality of the third party fork
+thereof, [typed_ast](https://github.com/python/typed_ast).
+
+..
+
+.. bpo: 35713
+.. date: 2019-01-22-18-50-21
+.. nonce: bTeUsa
+.. section: Core and Builtins
+
+Reorganize Python initialization to get working exceptions and sys.stderr
+earlier.
+
+..
+
+.. bpo: 33416
+.. date: 2019-01-19-19-41-53
+.. nonce: VDeOU5
+.. section: Core and Builtins
+
+Add end line and end column position information to the Python AST nodes.
+This is a C-level backwards incompatible change.
+
+..
+
+.. bpo: 35720
+.. date: 2019-01-12-23-33-04
+.. nonce: LELKQx
+.. section: Core and Builtins
+
+Fixed a minor memory leak in pymain_parse_cmdline_impl function in
+Modules/main.c
+
+..
+
+.. bpo: 35634
+.. date: 2019-01-05-18-39-49
+.. nonce: nVP_gs
+.. section: Core and Builtins
+
+``func(**kwargs)`` will now raise an error when ``kwargs`` is a mapping
+containing multiple entries with the same key. An error was already raised
+when other keyword arguments are passed before ``**kwargs`` since Python
+3.6.
+
+..
+
+.. bpo: 35623
+.. date: 2018-12-31-02-37-20
+.. nonce: 24AQhY
+.. section: Core and Builtins
+
+Fix a crash when sorting very long lists. Patch by Stephan Hohe.
+
+..
+
+.. bpo: 35214
+.. date: 2018-12-30-15-36-23
+.. nonce: GWDQcv
+.. section: Core and Builtins
+
+clang Memory Sanitizer build instrumentation was added to work around false
+positives from posix, socket, time, test_io, and test_faulthandler.
+
+..
+
+.. bpo: 35560
+.. date: 2018-12-22-22-19-51
+.. nonce: 9vMWSP
+.. section: Core and Builtins
+
+Fix an assertion error in :func:`format` in debug build for floating point
+formatting with "n" format, zero padding and small width. Release build is
+not impacted. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 35552
+.. date: 2018-12-21-13-29-30
+.. nonce: 1DzQQc
+.. section: Core and Builtins
+
+Format characters ``%s`` and ``%V`` in :c:func:`PyUnicode_FromFormat` and
+``%s`` in :c:func:`PyBytes_FromFormat` no longer read memory past the limit
+if *precision* is specified.
+
+..
+
+.. bpo: 35504
+.. date: 2018-12-15-14-01-45
+.. nonce: JtKczP
+.. section: Core and Builtins
+
+Fix segfaults and :exc:`SystemError`\ s when deleting certain attributes.
+Patch by Zackery Spytz.
+
+..
+
+.. bpo: 35504
+.. date: 2018-12-15-00-47-41
+.. nonce: 9gVuen
+.. section: Core and Builtins
+
+Fixed a SystemError when delete the characters_written attribute of an
+OSError.
+
+..
+
+.. bpo: 35494
+.. date: 2018-12-14-18-02-34
+.. nonce: IWOPtb
+.. section: Core and Builtins
+
+Improved syntax error messages for unbalanced parentheses in f-string.
+
+..
+
+.. bpo: 35444
+.. date: 2018-12-09-13-09-39
+.. nonce: 9kYn4V
+.. section: Core and Builtins
+
+Fixed error handling in pickling methods when fail to look up builtin
+"getattr". Sped up pickling iterators.
+
+..
+
+.. bpo: 35436
+.. date: 2018-12-07-02-38-01
+.. nonce: 0VW7p9
+.. section: Core and Builtins
+
+Fix various issues with memory allocation error handling. Patch by Zackery
+Spytz.
+
+..
+
+.. bpo: 35423
+.. date: 2018-12-05-16-24-05
+.. nonce: UIie_O
+.. section: Core and Builtins
+
+Separate the signal handling trigger in the eval loop from the "pending
+calls" machinery. There is no semantic change and the difference in
+performance is insignificant.
+
+..
+
+.. bpo: 35357
+.. date: 2018-12-03-21-20-24
+.. nonce: rhhoiC
+.. section: Core and Builtins
+
+Internal attributes' names of unittest.mock._Call and
+unittest.mock.MagicProxy (name, parent & from_kall) are now prefixed with
+_mock_ in order to prevent clashes with widely used object attributes. Fixed
+minor typo in test function name.
+
+..
+
+.. bpo: 35372
+.. date: 2018-12-01-19-20-53
+.. nonce: RwVJjZ
+.. section: Core and Builtins
+
+Fixed the code page decoder for input longer than 2 GiB containing
+undecodable bytes.
+
+..
+
+.. bpo: 35336
+.. date: 2018-11-29-23-59-52
+.. nonce: 8LOz4F
+.. section: Core and Builtins
+
+Fix PYTHONCOERCECLOCALE=1 environment variable: only coerce the C locale if
+the LC_CTYPE locale is "C".
+
+..
+
+.. bpo: 31241
+.. date: 2018-11-21-14-05-51
+.. nonce: Kin10-
+.. section: Core and Builtins
+
+The *lineno* and *col_offset* attributes of AST nodes for list
+comprehensions, generator expressions and tuples are now point to the
+opening parenthesis or square brace. For tuples without parenthesis they
+point to the position of the first item.
+
+..
+
+.. bpo: 33954
+.. date: 2018-11-20-22-33-38
+.. nonce: RzSngM
+.. section: Core and Builtins
+
+For :meth:`str.format`, :meth:`float.__format__` and
+:meth:`complex.__format__` methods for non-ASCII decimal point when using
+the "n" formatter.
+
+..
+
+.. bpo: 35269
+.. date: 2018-11-17-10-18-29
+.. nonce: gjm1LO
+.. section: Core and Builtins
+
+Fix a possible segfault involving a newly created coroutine. Patch by
+Zackery Spytz.
+
+..
+
+.. bpo: 35224
+.. date: 2018-11-13-14-26-54
+.. nonce: F0B6UQ
+.. section: Core and Builtins
+
+Implement :pep:`572` (assignment expressions). Patch by Emily Morehouse.
+
+..
+
+.. bpo: 32492
+.. date: 2018-11-13-01-03-10
+.. nonce: voIdcp
+.. section: Core and Builtins
+
+Speed up :class:`namedtuple` attribute access by 1.6x using a C fast-path
+for the name descriptors. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 35214
+.. date: 2018-11-13-00-40-35
+.. nonce: OQBjph
+.. section: Core and Builtins
+
+Fixed an out of bounds memory access when parsing a truncated unicode escape
+sequence at the end of a string such as ``'\N'``. It would read one byte
+beyond the end of the memory allocation.
+
+..
+
+.. bpo: 35214
+.. date: 2018-11-12-11-38-06
+.. nonce: PCHKbX
+.. section: Core and Builtins
+
+The interpreter and extension modules have had annotations added so that
+they work properly under clang's Memory Sanitizer. A new configure flag
+--with-memory-sanitizer has been added to make test builds of this nature
+easier to perform.
+
+..
+
+.. bpo: 35193
+.. date: 2018-11-08-15-00-58
+.. nonce: HzPS6R
+.. section: Core and Builtins
+
+Fix an off by one error in the bytecode peephole optimizer where it could
+read bytes beyond the end of bounds of an array when removing unreachable
+code. This bug was present in every release of Python 3.6 and 3.7 until now.
+
+..
+
+.. bpo: 35169
+.. date: 2018-11-05-21-19-05
+.. nonce: _FyPI2
+.. section: Core and Builtins
+
+Improved error messages for forbidden assignments.
+
+..
+
+.. bpo: 34022
+.. date: 2018-11-04-18-13-40
+.. nonce: U3btVj
+.. section: Core and Builtins
+
+Fix handling of hash-based bytecode files in :mod:`zipimport`. Patch by
+Elvis Pranskevichus.
+
+..
+
+.. bpo: 28401
+.. date: 2018-11-03-10-37-29
+.. nonce: RprDIg
+.. section: Core and Builtins
+
+Debug builds will no longer to attempt to import extension modules built for
+the ABI as they were never compatible to begin with. Patch by Stefano
+Rivera.
+
+..
+
+.. bpo: 29341
+.. date: 2018-10-25-20-53-32
+.. nonce: jH-AMF
+.. section: Core and Builtins
+
+Clarify in the docstrings of :mod:`os` methods that path-like objects are
+also accepted as input parameters.
+
+..
+
+.. bpo: 35050
+.. date: 2018-10-23-15-03-53
+.. nonce: 49wraS
+.. section: Core and Builtins
+
+:mod:`socket`: Fix off-by-one bug in length check for ``AF_ALG`` name and
+type.
+
+..
+
+.. bpo: 29743
+.. date: 2018-10-21-17-43-48
+.. nonce: aeCcKR
+.. section: Core and Builtins
+
+Raise :exc:`ValueError` instead of :exc:`OverflowError` in case of a
+negative ``_length_`` in a :class:`ctypes.Array` subclass. Also raise
+:exc:`TypeError` instead of :exc:`AttributeError` for non-integer
+``_length_``. Original patch by Oren Milman.
+
+..
+
+.. bpo: 16806
+.. date: 2018-10-20-18-05-58
+.. nonce: zr3A9N
+.. section: Core and Builtins
+
+Fix ``lineno`` and ``col_offset`` for multi-line string tokens.
+
+..
+
+.. bpo: 35029
+.. date: 2018-10-20-10-26-15
+.. nonce: t4tZcQ
+.. section: Core and Builtins
+
+:exc:`SyntaxWarning` raised as an exception at code generation time will be
+now replaced with a :exc:`SyntaxError` for better error reporting.
+
+..
+
+.. bpo: 34983
+.. date: 2018-10-14-17-26-41
+.. nonce: l8XaZd
+.. section: Core and Builtins
+
+Expose :meth:`symtable.Symbol.is_nonlocal` in the symtable module. Patch by
+Pablo Galindo.
+
+..
+
+.. bpo: 34974
+.. date: 2018-10-13-22-24-19
+.. nonce: 7LgTc2
+.. section: Core and Builtins
+
+:class:`bytes` and :class:`bytearray` constructors no longer convert
+unexpected exceptions (e.g. :exc:`MemoryError` and :exc:`KeyboardInterrupt`)
+to :exc:`TypeError`.
+
+..
+
+.. bpo: 34939
+.. date: 2018-10-13-17-40-15
+.. nonce: 0gpxlJ
+.. section: Core and Builtins
+
+Allow annotated names in module namespace that are declared global before
+the annotation happens. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 34973
+.. date: 2018-10-13-16-42-03
+.. nonce: B5M-3g
+.. section: Core and Builtins
+
+Fixed crash in :func:`bytes` when the :class:`list` argument is mutated
+while it is iterated.
+
+..
+
+.. bpo: 34876
+.. date: 2018-10-06-14-02-51
+.. nonce: oBKBA4
+.. section: Core and Builtins
+
+The *lineno* and *col_offset* attributes of the AST for decorated function
+and class refer now to the position of the corresponding ``def``, ``async
+def`` and ``class`` instead of the position of the first decorator. This
+leads to more correct line reporting in tracing. This is the only case when
+the position of child AST nodes can precede the position of the parent AST
+node.
+
+..
+
+.. bpo: 34879
+.. date: 2018-10-02-22-55-11
+.. nonce: 7VNH2a
+.. section: Core and Builtins
+
+Fix a possible null pointer dereference in bytesobject.c. Patch by Zackery
+Spytz.
+
+..
+
+.. bpo: 34784
+.. date: 2018-10-02-09-10-47
+.. nonce: 07hdgD
+.. section: Core and Builtins
+
+Fix the implementation of PyStructSequence_NewType in order to create heap
+allocated StructSequences.
+
+..
+
+.. bpo: 32912
+.. date: 2018-10-01-10-41-53
+.. nonce: JeIOdM
+.. section: Core and Builtins
+
+A :exc:`SyntaxWarning` is now emitted instead of a :exc:`DeprecationWarning`
+for invalid escape sequences in string and bytes literals.
+
+..
+
+.. bpo: 34854
+.. date: 2018-09-30-19-27-13
+.. nonce: 6TKTcB
+.. section: Core and Builtins
+
+Fixed a crash in compiling string annotations containing a lambda with a
+keyword-only argument that doesn't have a default value.
+
+..
+
+.. bpo: 34850
+.. date: 2018-09-30-11-19-55
+.. nonce: CbgDwb
+.. section: Core and Builtins
+
+The compiler now produces a :exc:`SyntaxWarning` when identity checks
+(``is`` and ``is not``) are used with certain types of literals (e.g.
+strings, ints). These can often work by accident in CPython, but are not
+guaranteed by the language spec. The warning advises users to use equality
+tests (``==`` and ``!=``) instead.
+
+..
+
+.. bpo: 34824
+.. date: 2018-09-27-11-10-02
+.. nonce: VLlCaU
+.. section: Core and Builtins
+
+Fix a possible null pointer dereference in Modules/_ssl.c. Patch by Zackery
+Spytz.
+
+..
+
+.. bpo: 30156
+.. date: 2018-09-24-17-51-15
+.. nonce: pH0j5j
+.. section: Core and Builtins
+
+The C function ``property_descr_get()`` uses a "cached" tuple to optimize
+function calls. But this tuple can be discovered in debug mode with
+:func:`sys.getobjects()`. Remove the optimization, it's not really worth it
+and it causes 3 different crashes last years.
+
+..
+
+.. bpo: 34762
+.. date: 2018-09-21-11-06-56
+.. nonce: 1nN53m
+.. section: Core and Builtins
+
+Fix contextvars C API to use PyObject* pointer types.
+
+..
+
+.. bpo: 34751
+.. date: 2018-09-20-15-41-58
+.. nonce: Yiv0pV
+.. section: Core and Builtins
+
+The hash function for tuples is now based on xxHash which gives better
+collision results on (formerly) pathological cases. Additionally, on 64-bit
+systems it improves tuple hashes in general. Patch by Jeroen Demeyer with
+substantial contributions by Tim Peters.
+
+..
+
+.. bpo: 34735
+.. date: 2018-09-19-06-57-34
+.. nonce: -3mrSJ
+.. section: Core and Builtins
+
+Fix a memory leak in Modules/timemodule.c. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 34683
+.. date: 2018-09-15-19-32-34
+.. nonce: msCiQE
+.. section: Core and Builtins
+
+Fixed a bug where some SyntaxError error pointed to locations that were
+off-by-one.
+
+..
+
+.. bpo: 34651
+.. date: 2018-09-13-12-21-08
+.. nonce: v-bUeV
+.. section: Core and Builtins
+
+Only allow the main interpreter to fork. The avoids the possibility of
+affecting the main interpreter, which is critical to operation of the
+runtime.
+
+..
+
+.. bpo: 34653
+.. date: 2018-09-13-12-06-09
+.. nonce: z8NE-i
+.. section: Core and Builtins
+
+Remove unused function PyParser_SimpleParseStringFilename.
+
+..
+
+.. bpo: 32236
+.. date: 2018-09-11-23-50-40
+.. nonce: 3RupnN
+.. section: Core and Builtins
+
+Warn that line buffering is not supported if :func:`open` is called with
+binary mode and ``buffering=1``.
+
+..
+
+.. bpo: 34641
+.. date: 2018-09-11-23-12-33
+.. nonce: gFBCc9
+.. section: Core and Builtins
+
+Further restrict the syntax of the left-hand side of keyword arguments in
+function calls. In particular, ``f((keyword)=arg)`` is now disallowed.
+
+..
+
+.. bpo: 34637
+.. date: 2018-09-11-17-25-44
+.. nonce: HSLqY4
+.. section: Core and Builtins
+
+Make the *start* argument to *sum()* visible as a keyword argument.
+
+..
+
+.. bpo: 1621
+.. date: 2018-09-11-15-19-37
+.. nonce: 7o19yG
+.. section: Core and Builtins
+
+Do not assume signed integer overflow behavior (C undefined behavior) when
+performing set hash table resizing.
+
+..
+
+.. bpo: 34588
+.. date: 2018-09-05-22-56-52
+.. nonce: UIuPmL
+.. section: Core and Builtins
+
+Fix an off-by-one in the recursive call pruning feature of traceback
+formatting.
+
+..
+
+.. bpo: 34485
+.. date: 2018-08-29-11-04-19
+.. nonce: c2AFdp
+.. section: Core and Builtins
+
+On Windows, the LC_CTYPE is now set to the user preferred locale at startup.
+Previously, the LC_CTYPE locale was "C" at startup, but changed when calling
+setlocale(LC_CTYPE, "") or setlocale(LC_ALL, "").
+
+..
+
+.. bpo: 34485
+.. date: 2018-08-29-09-27-47
+.. nonce: 5aJCmw
+.. section: Core and Builtins
+
+Standard streams like sys.stdout now use the "surrogateescape" error
+handler, instead of "strict", on the POSIX locale (when the C locale is not
+coerced and the UTF-8 Mode is disabled).
+
+..
+
+.. bpo: 34485
+.. date: 2018-08-28-23-01-14
+.. nonce: dq1Kqk
+.. section: Core and Builtins
+
+Fix the error handler of standard streams like sys.stdout:
+PYTHONIOENCODING=":" is now ignored instead of setting the error handler to
+"strict".
+
+..
+
+.. bpo: 34485
+.. date: 2018-08-28-17-48-40
+.. nonce: aFwck2
+.. section: Core and Builtins
+
+Python now gets the locale encoding with C code to initialize the encoding
+of standard streams like sys.stdout. Moreover, the encoding is now
+initialized to the Python codec name to get a normalized encoding name and
+to ensure that the codec is loaded. The change avoids importing _bootlocale
+and _locale modules at startup by default.
+
+..
+
+.. bpo: 34527
+.. date: 2018-08-28-11-53-39
+.. nonce: aBEX9b
+.. section: Core and Builtins
+
+On FreeBSD, Py_DecodeLocale() and Py_EncodeLocale() now also forces the
+ASCII encoding if the LC_CTYPE locale is "POSIX", not only if the LC_CTYPE
+locale is "C".
+
+..
+
+.. bpo: 34527
+.. date: 2018-08-28-11-52-13
+.. nonce: sh5MQJ
+.. section: Core and Builtins
+
+The UTF-8 Mode is now also enabled by the "POSIX" locale, not only by the
+"C" locale.
+
+..
+
+.. bpo: 34403
+.. date: 2018-08-28-10-49-55
+.. nonce: 4Q3LzP
+.. section: Core and Builtins
+
+On HP-UX with C or POSIX locale, sys.getfilesystemencoding() now returns
+"ascii" instead of "roman8" (when the UTF-8 Mode is disabled and the C
+locale is not coerced).
+
+..
+
+.. bpo: 34523
+.. date: 2018-08-28-01-45-01
+.. nonce: aUUkc3
+.. section: Core and Builtins
+
+The Python filesystem encoding is now read earlier during the Python
+initialization.
+
+..
+
+.. bpo: 12458
+.. date: 2018-08-15-20-46-49
+.. nonce: ApHbx5
+.. section: Core and Builtins
+
+Tracebacks show now correct line number for subexpressions in multiline
+expressions. Tracebacks show now the line number of the first line for
+multiline expressions instead of the line number of the last subexpression.
+
+..
+
+.. bpo: 34408
+.. date: 2018-08-14-22-35-19
+.. nonce: aomWYW
+.. section: Core and Builtins
+
+Prevent a null pointer dereference and resource leakage in
+``PyInterpreterState_New()``.
+
+..
+
+.. bpo: 34400
+.. date: 2018-08-14-03-52-43
+.. nonce: AJD0bz
+.. section: Core and Builtins
+
+Fix undefined behavior in parsetok.c. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 33073
+.. date: 2018-08-12-16-03-58
+.. nonce: XWu1Jh
+.. section: Core and Builtins
+
+Added as_integer_ratio to ints to make them more interoperable with floats.
+
+..
+
+.. bpo: 34377
+.. date: 2018-08-10-15-05-00
+.. nonce: EJMMY4
+.. section: Core and Builtins
+
+Update valgrind suppression list to use
+``_PyObject_Free``/``_PyObject_Realloc`` instead of
+``PyObject_Free``/``PyObject_Realloc``.
+
+..
+
+.. bpo: 34353
+.. date: 2018-08-09-18-42-49
+.. nonce: GIOm_8
+.. section: Core and Builtins
+
+Added the "socket" option in the `stat.filemode()` Python implementation to
+match the C implementation.
+
+..
+
+.. bpo: 34320
+.. date: 2018-08-02-22-34-59
+.. nonce: hNshAA
+.. section: Core and Builtins
+
+Fix ``dict(od)`` didn't copy iteration order of OrderedDict.
+
+..
+
+.. bpo: 34113
+.. date: 2018-07-28-10-34-00
+.. nonce: eZ5FWV
+.. section: Core and Builtins
+
+Fixed crash on debug builds when opcode stack was adjusted with negative
+numbers. Patch by Constantin Petrisor.
+
+..
+
+.. bpo: 34100
+.. date: 2018-07-27-20-04-52
+.. nonce: ypJQX1
+.. section: Core and Builtins
+
+Compiler now merges constants in tuples and frozensets recursively. Code
+attributes like ``co_names`` are merged too.
+
+..
+
+.. bpo: 34151
+.. date: 2018-07-25-20-26-02
+.. nonce: Q2pK9Q
+.. section: Core and Builtins
+
+Performance of list concatenation, repetition and slicing operations is
+slightly improved. Patch by Sergey Fedoseev.
+
+..
+
+.. bpo: 34170
+.. date: 2018-07-25-19-23-33
+.. nonce: v1h_H2
+.. section: Core and Builtins
+
+-X dev: it is now possible to override the memory allocator using
+PYTHONMALLOC even if the developer mode is enabled.
+
+..
+
+.. bpo: 33237
+.. date: 2018-07-24-12-54-57
+.. nonce: O95mps
+.. section: Core and Builtins
+
+Improved :exc:`AttributeError` message for partially initialized module.
+
+..
+
+.. bpo: 34149
+.. date: 2018-07-23-21-49-05
+.. nonce: WSV-_g
+.. section: Core and Builtins
+
+Fix min and max functions to get default behavior when key is None.
+
+..
+
+.. bpo: 34125
+.. date: 2018-07-23-16-34-03
+.. nonce: jCl2Q2
+.. section: Core and Builtins
+
+Profiling of unbound built-in methods now works when ``**kwargs`` is given.
+
+..
+
+.. bpo: 34141
+.. date: 2018-07-18-08-36-58
+.. nonce: Fo7Q5r
+.. section: Core and Builtins
+
+Optimized pickling atomic types (None, bool, int, float, bytes, str).
+
+..
+
+.. bpo: 34126
+.. date: 2018-07-16-20-55-29
+.. nonce: mBVmgc
+.. section: Core and Builtins
+
+Fix crashes when profiling certain invalid calls of unbound methods. Patch
+by Jeroen Demeyer.
+
+..
+
+.. bpo: 24618
+.. date: 2018-07-14-14-01-37
+.. nonce: iTKjD_
+.. section: Core and Builtins
+
+Fixed reading invalid memory when create the code object with too small
+varnames tuple or too large argument counts.
+
+..
+
+.. bpo: 34068
+.. date: 2018-07-14-08-58-46
+.. nonce: 9xfM55
+.. section: Core and Builtins
+
+In :meth:`io.IOBase.close`, ensure that the :attr:`~io.IOBase.closed`
+attribute is not set with a live exception. Patch by Zackery Spytz and
+Serhiy Storchaka.
+
+..
+
+.. bpo: 34087
+.. date: 2018-07-13-22-09-55
+.. nonce: I1Bxfc
+.. section: Core and Builtins
+
+Fix buffer overflow while converting unicode to numeric values.
+
+..
+
+.. bpo: 34080
+.. date: 2018-07-10-11-24-16
+.. nonce: 8t7PtO
+.. section: Core and Builtins
+
+Fixed a memory leak in the compiler when it raised some uncommon errors
+during tokenizing.
+
+..
+
+.. bpo: 34066
+.. date: 2018-07-07-20-15-34
+.. nonce: y9vs6s
+.. section: Core and Builtins
+
+Disabled interruption by Ctrl-C between calling ``open()`` and entering a
+**with** block in ``with open()``.
+
+..
+
+.. bpo: 34042
+.. date: 2018-07-05-15-51-29
+.. nonce: Gr9XUH
+.. section: Core and Builtins
+
+Fix dict.copy() to maintain correct total refcount (as reported by
+sys.gettotalrefcount()).
+
+..
+
+.. bpo: 33418
+.. date: 2018-07-03-19-00-10
+.. nonce: cfGm3n
+.. section: Core and Builtins
+
+Fix potential memory leak in function object when it creates reference
+cycle.
+
+..
+
+.. bpo: 33985
+.. date: 2018-06-27-18-56-41
+.. nonce: ILJ3Af
+.. section: Core and Builtins
+
+Implement contextvars.ContextVar.name attribute.
+
+..
+
+.. bpo: 33956
+.. date: 2018-06-25-20-42-44
+.. nonce: 1qoTwD
+.. section: Core and Builtins
+
+Update vendored Expat library copy to version 2.2.5.
+
+..
+
+.. bpo: 24596
+.. date: 2018-06-25-16-54-05
+.. nonce: Rkwova
+.. section: Core and Builtins
+
+Decref the module object in :c:func:`PyRun_SimpleFileExFlags` before calling
+:c:func:`PyErr_Print()`. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 33451
+.. date: 2018-06-23-15-32-02
+.. nonce: sWN-1l
+.. section: Core and Builtins
+
+Close directly executed pyc files before calling ``PyEval_EvalCode()``.
+
+..
+
+.. bpo: 1617161
+.. date: 2018-06-21-21-42-15
+.. nonce: tSo2yM
+.. section: Core and Builtins
+
+The hash of :class:`BuiltinMethodType` instances (methods of built-in
+classes) now depends on the hash of the identity of *__self__* instead of
+its value. The hash and equality of :class:`ModuleType` and
+:class:`MethodWrapperType` instances (methods of user-defined classes and
+some methods of built-in classes like ``str.__add__``) now depend on the
+hash and equality of the identity of *__self__* instead of its value.
+:class:`MethodWrapperType` instances no longer support ordering.
+
+..
+
+.. bpo: 33824
+.. date: 2018-06-15-19-39-06
+.. nonce: DfWHT3
+.. section: Core and Builtins
+
+Fix "LC_ALL=C python3.7 -V": reset properly the command line parser when the
+encoding changes after reading the Python configuration.
+
+..
+
+.. bpo: 33803
+.. date: 2018-06-07-20-18-38
+.. nonce: n-Nq6_
+.. section: Core and Builtins
+
+Fix a crash in hamt.c caused by enabling GC tracking for an object that
+hadn't all of its fields set to NULL.
+
+..
+
+.. bpo: 33738
+.. date: 2018-06-07-18-34-19
+.. nonce: ODZS7a
+.. section: Core and Builtins
+
+Seven macro incompatibilities with the Limited API were fixed, and the
+macros :c:func:`PyIter_Check`, :c:func:`PyIndex_Check` and
+:c:func:`PyExceptionClass_Name` were added as functions. A script for
+automatic macro checks was added.
+
+..
+
+.. bpo: 33786
+.. date: 2018-06-06-23-24-40
+.. nonce: lBvT8z
+.. section: Core and Builtins
+
+Fix asynchronous generators to handle GeneratorExit in athrow() correctly
+
+..
+
+.. bpo: 30167
+.. date: 2018-06-05-15-49-02
+.. nonce: e956hA
+.. section: Core and Builtins
+
+``PyRun_SimpleFileExFlags`` removes ``__cached__`` from module in addition
+to ``__file__``.
+
+..
+
+.. bpo: 33706
+.. date: 2018-05-31-14-50-04
+.. nonce: ztlH04
+.. section: Core and Builtins
+
+Fix a crash in Python initialization when parsing the command line options.
+Thanks Christoph Gohlke for the bug report and the fix!
+
+..
+
+.. bpo: 33597
+.. date: 2018-05-28-21-17-31
+.. nonce: r0ToM4
+.. section: Core and Builtins
+
+Reduce ``PyGC_Head`` size from 3 words to 2 words.
+
+..
+
+.. bpo: 30654
+.. date: 2018-05-28-12-28-53
+.. nonce: 9fDJye
+.. section: Core and Builtins
+
+Fixed reset of the SIGINT handler to SIG_DFL on interpreter shutdown even
+when there was a custom handler set previously. Patch by Philipp Kerling.
+
+..
+
+.. bpo: 33622
+.. date: 2018-05-23-20-46-14
+.. nonce: xPucO9
+.. section: Core and Builtins
+
+Fixed a leak when the garbage collector fails to add an object with the
+``__del__`` method or referenced by it into the :data:`gc.garbage` list.
+:c:func:`PyGC_Collect` can now be called when an exception is set and
+preserves it.
+
+..
+
+.. bpo: 33462
+.. date: 2018-05-23-17-18-02
+.. nonce: gurbpbrhe
+.. section: Core and Builtins
+
+Make dict and dict views reversible. Patch by Rémi Lapeyre.
+
+..
+
+.. bpo: 23722
+.. date: 2018-05-17-13-06-36
+.. nonce: xisqZk
+.. section: Core and Builtins
+
+A :exc:`RuntimeError` is now raised when the custom metaclass doesn't
+provide the ``__classcell__`` entry in the namespace passed to
+``type.__new__``. A :exc:`DeprecationWarning` was emitted in Python
+3.6--3.7.
+
+..
+
+.. bpo: 33499
+.. date: 2018-05-15-10-48-47
+.. nonce: uBEc06
+.. section: Core and Builtins
+
+Add :envvar:`PYTHONPYCACHEPREFIX` environment variable and :option:`-X`
+``pycache_prefix`` command-line option to set an alternate root directory
+for writing module bytecode cache files.
+
+..
+
+.. bpo: 25711
+.. date: 2018-05-14-18-54-03
+.. nonce: 9xfq-v
+.. section: Core and Builtins
+
+The :mod:`zipimport` module has been rewritten in pure Python.
+
+..
+
+.. bpo: 33509
+.. date: 2018-05-14-17-31-02
+.. nonce: pIUfTd
+.. section: Core and Builtins
+
+Fix module_globals parameter of warnings.warn_explicit(): don't crash if
+module_globals is not a dict.
+
+..
+
+.. bpo: 31849
+.. date: 2018-05-14-11-00-00
+.. nonce: EmHaH4
+.. section: Core and Builtins
+
+Fix signed/unsigned comparison warning in pyhash.c.
+
+..
+
+.. bpo: 33475
+.. date: 2018-05-13-01-26-18
+.. nonce: rI0y1U
+.. section: Core and Builtins
+
+Fixed miscellaneous bugs in converting annotations to strings and optimized
+parentheses in the string representation.
+
+..
+
+.. bpo: 20104
+.. date: 2018-05-05-23-26-58
+.. nonce: tDBciE
+.. section: Core and Builtins
+
+Added support for the `setpgroup`, `resetids`, `setsigmask`, `setsigdef` and
+`scheduler` parameters of `posix_spawn`. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 33391
+.. date: 2018-05-02-08-36-03
+.. nonce: z4a7rb
+.. section: Core and Builtins
+
+Fix a leak in set_symmetric_difference().
+
+..
+
+.. bpo: 33363
+.. date: 2018-04-26-22-48-28
+.. nonce: 8RCnN2
+.. section: Core and Builtins
+
+Raise a SyntaxError for ``async with`` and ``async for`` statements outside
+of async functions.
+
+..
+
+.. bpo: 28055
+.. date: 2018-04-25-20-44-42
+.. nonce: f49kfC
+.. section: Core and Builtins
+
+Fix unaligned accesses in siphash24(). Patch by Rolf Eike Beer.
+
+..
+
+.. bpo: 33128
+.. date: 2018-04-24-22-31-04
+.. nonce: g2yLuf
+.. section: Core and Builtins
+
+Fix a bug that causes PathFinder to appear twice on sys.meta_path. Patch by
+Pablo Galindo Salgado.
+
+..
+
+.. bpo: 33331
+.. date: 2018-04-22-13-41-59
+.. nonce: s_DxdL
+.. section: Core and Builtins
+
+Modules imported last are now cleared first at interpreter shutdown.
+
+..
+
+.. bpo: 33312
+.. date: 2018-04-19-08-30-07
+.. nonce: mDe2iL
+.. section: Core and Builtins
+
+Fixed clang ubsan (undefined behavior sanitizer) warnings in dictobject.c by
+adjusting how the internal struct _dictkeysobject shared keys structure is
+declared.
+
+..
+
+.. bpo: 33305
+.. date: 2018-04-18-14-17-44
+.. nonce: 9z3dDH
+.. section: Core and Builtins
+
+Improved syntax error messages for invalid numerical literals.
+
+..
+
+.. bpo: 33306
+.. date: 2018-04-18-12-23-30
+.. nonce: tSM3cp
+.. section: Core and Builtins
+
+Improved syntax error messages for unbalanced parentheses.
+
+..
+
+.. bpo: 33234
+.. date: 2018-04-17-01-24-51
+.. nonce: l9IDtp
+.. section: Core and Builtins
+
+The list constructor will pre-size and not over-allocate when the input
+length is known.
+
+..
+
+.. bpo: 33270
+.. date: 2018-04-14-13-12-50
+.. nonce: UmVV6i
+.. section: Core and Builtins
+
+Intern the names for all anonymous code objects. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 30455
+.. date: 2018-04-14-11-02-57
+.. nonce: ANRwjo
+.. section: Core and Builtins
+
+The C and Python code and the documentation related to tokens are now
+generated from a single source file :file:`Grammar/Tokens`.
+
+..
+
+.. bpo: 33176
+.. date: 2018-04-13-22-31-09
+.. nonce: PB9com
+.. section: Core and Builtins
+
+Add a ``toreadonly()`` method to memoryviews.
+
+..
+
+.. bpo: 33231
+.. date: 2018-04-05-22-20-44
+.. nonce: 3Jmo0q
+.. section: Core and Builtins
+
+Fix potential memory leak in ``normalizestring()``.
+
+..
+
+.. bpo: 33205
+.. date: 2018-04-03-00-58-41
+.. nonce: lk2F3r
+.. section: Core and Builtins
+
+Change dict growth function from
+``round_up_to_power_2(used*2+hashtable_size/2)`` to
+``round_up_to_power_2(used*3)``. Previously, dict is shrinked only when
+``used == 0``. Now dict has more chance to be shrinked.
+
+..
+
+.. bpo: 29922
+.. date: 2018-04-03-00-30-25
+.. nonce: CdLuMl
+.. section: Core and Builtins
+
+Improved error messages in 'async with' when ``__aenter__()`` or
+``__aexit__()`` return non-awaitable object.
+
+..
+
+.. bpo: 33199
+.. date: 2018-04-02-09-32-40
+.. nonce: TPnxQu
+.. section: Core and Builtins
+
+Fix ``ma_version_tag`` in dict implementation is uninitialized when copying
+from key-sharing dict.
+
+..
+
+.. bpo: 33053
+.. date: 2018-03-25-19-49-06
+.. nonce: V3xlsH
+.. section: Core and Builtins
+
+When using the -m switch, sys.path[0] is now explicitly expanded as the
+*starting* working directory, rather than being left as the empty path
+(which allows imports from the current working directory at the time of the
+import)
+
+..
+
+.. bpo: 33138
+.. date: 2018-03-25-19-25-14
+.. nonce: aSqudH
+.. section: Core and Builtins
+
+Changed standard error message for non-pickleable and non-copyable types. It
+now says "cannot pickle" instead of "can't pickle" or "cannot serialize".
+
+..
+
+.. bpo: 33018
+.. date: 2018-03-22-23-09-06
+.. nonce: 0ncEJV
+.. section: Core and Builtins
+
+Improve consistency of errors raised by ``issubclass()`` when called with a
+non-class and an abstract base class as the first and second arguments,
+respectively. Patch by Josh Bronson.
+
+..
+
+.. bpo: 33083
+.. date: 2018-03-19-00-59-20
+.. nonce: Htztjl
+.. section: Core and Builtins
+
+``math.factorial`` no longer accepts arguments that are not int-like. Patch
+by Pablo Galindo.
+
+..
+
+.. bpo: 33041
+.. date: 2018-03-18-13-56-14
+.. nonce: XwPhI2
+.. section: Core and Builtins
+
+Added new opcode :opcode:`END_ASYNC_FOR` and fixes the following issues:
+
+* Setting global :exc:`StopAsyncIteration` no longer breaks ``async for``
+ loops.
+* Jumping into an ``async for`` loop is now disabled.
+* Jumping out of an ``async for`` loop no longer corrupts the stack.
+
+..
+
+.. bpo: 25750
+.. date: 2018-03-14-21-42-17
+.. nonce: lxgkQz
+.. section: Core and Builtins
+
+Fix rare Python crash due to bad refcounting in ``type_getattro()`` if a
+descriptor deletes itself from the class. Patch by Jeroen Demeyer.
+
+..
+
+.. bpo: 33041
+.. date: 2018-03-10-15-16-40
+.. nonce: -ak5Fk
+.. section: Core and Builtins
+
+Fixed bytecode generation for "async for" with a complex target. A
+StopAsyncIteration raised on assigning or unpacking will be now propagated
+instead of stopping the iteration.
+
+..
+
+.. bpo: 33026
+.. date: 2018-03-08-09-48-38
+.. nonce: QZA3Ba
+.. section: Core and Builtins
+
+Fixed jumping out of "with" block by setting f_lineno.
+
+..
+
+.. bpo: 33005
+.. date: 2018-03-06-12-19-19
+.. nonce: LP-V2U
+.. section: Core and Builtins
+
+Fix a crash on fork when using a custom memory allocator (ex: using
+PYTHONMALLOC env var). _PyGILState_Reinit() and _PyInterpreterState_Enable()
+now use the default RAW memory allocator to allocate a new interpreters
+mutex on fork.
+
+..
+
+.. bpo: 32911
+.. date: 2018-02-27-20-57-00
+.. nonce: cmKfco
+.. section: Core and Builtins
+
+Due to unexpected compatibility issues discovered during downstream beta
+testing, reverted :issue:`29463`. ``docstring`` field is removed from
+Module, ClassDef, FunctionDef, and AsyncFunctionDef ast nodes which was
+added in 3.7a1. Docstring expression is restored as a first statement in
+their body. Based on patch by Inada Naoki.
+
+..
+
+.. bpo: 17288
+.. date: 2018-02-27-13-36-21
+.. nonce: Gdj24S
+.. section: Core and Builtins
+
+Prevent jumps from 'return' and 'exception' trace events.
+
+..
+
+.. bpo: 32946
+.. date: 2018-02-25-10-52-40
+.. nonce: Lo09rG
+.. section: Core and Builtins
+
+Importing names from already imported module with "from ... import ..." is
+now 30% faster if the module is not a package.
+
+..
+
+.. bpo: 32932
+.. date: 2018-02-24-21-51-42
+.. nonce: 2cz31L
+.. section: Core and Builtins
+
+Make error message more revealing when there are non-str objects in
+``__all__``.
+
+..
+
+.. bpo: 32925
+.. date: 2018-02-24-00-07-05
+.. nonce: e-7Ufh
+.. section: Core and Builtins
+
+Optimized iterating and containing test for literal lists consisting of
+non-constants: ``x in [a, b]`` and ``for x in [a, b]``. The case of all
+constant elements already was optimized.
+
+..
+
+.. bpo: 32889
+.. date: 2018-02-20-21-53-48
+.. nonce: J6eWy5
+.. section: Core and Builtins
+
+Update Valgrind suppression list to account for the rename of
+``Py_ADDRESS_IN_RANG`` to ``address_in_range``.
+
+..
+
+.. bpo: 32836
+.. date: 2018-02-14-12-35-47
+.. nonce: bThJnx
+.. section: Core and Builtins
+
+Don't use temporary variables in cases of list/dict/set comprehensions
+
+..
+
+.. bpo: 31356
+.. date: 2018-02-02-08-50-46
+.. nonce: MNwUOQ
+.. section: Core and Builtins
+
+Remove the new API added in bpo-31356 (gc.ensure_disabled() context
+manager).
+
+..
+
+.. bpo: 32305
+.. date: 2018-02-01-10-56-41
+.. nonce: dkU9Qa
+.. section: Core and Builtins
+
+For namespace packages, ensure that both ``__file__`` and
+``__spec__.origin`` are set to None.
+
+..
+
+.. bpo: 32303
+.. date: 2018-02-01-10-16-28
+.. nonce: VsvhSl
+.. section: Core and Builtins
+
+Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages.
+
+..
+
+.. bpo: 32711
+.. date: 2018-01-29-14-36-37
+.. nonce: 8hQFJP
+.. section: Core and Builtins
+
+Fix the warning messages for Python/ast_unparse.c. Patch by Stéphane Wirtel
+
+..
+
+.. bpo: 32583
+.. date: 2018-01-26-21-20-21
+.. nonce: Fh3fau
+.. section: Core and Builtins
+
+Fix possible crashing in builtin Unicode decoders caused by write
+out-of-bound errors when using customized decode error handlers.
+
+..
+
+.. bpo: 32489
+.. date: 2018-01-03-23-12-43
+.. nonce: SDEPHB
+.. section: Core and Builtins
+
+A :keyword:`continue` statement is now allowed in the :keyword:`finally`
+clause.
+
+..
+
+.. bpo: 17611
+.. date: 2017-12-24-19-48-59
+.. nonce: P85kWL
+.. section: Core and Builtins
+
+Simplified the interpreter loop by moving the logic of unrolling the stack
+of blocks into the compiler. The compiler emits now explicit instructions
+for adjusting the stack of values and calling the cleaning up code for
+:keyword:`break`, :keyword:`continue` and :keyword:`return`.
+
+Removed opcodes :opcode:`BREAK_LOOP`, :opcode:`CONTINUE_LOOP`,
+:opcode:`SETUP_LOOP` and :opcode:`SETUP_EXCEPT`. Added new opcodes
+:opcode:`ROT_FOUR`, :opcode:`BEGIN_FINALLY` and :opcode:`CALL_FINALLY` and
+:opcode:`POP_FINALLY`. Changed the behavior of :opcode:`END_FINALLY` and
+:opcode:`WITH_CLEANUP_START`.
+
+..
+
+.. bpo: 32285
+.. date: 2017-12-12-13-43-13
+.. nonce: LzKSwz
+.. section: Core and Builtins
+
+New function unicodedata.is_normalized, which can check whether a string is
+in a specific normal form.
+
+..
+
+.. bpo: 10544
+.. date: 2017-11-26-00-59-22
+.. nonce: fHOM3V
+.. section: Core and Builtins
+
+Yield expressions are now disallowed in comprehensions and generator
+expressions except the expression for the outermost iterable.
+
+..
+
+.. bpo: 32117
+.. date: 2017-11-22-15-43-14
+.. nonce: -vloh8
+.. section: Core and Builtins
+
+Iterable unpacking is now allowed without parentheses in yield and return
+statements, e.g. ``yield 1, 2, 3, *rest``. Thanks to David Cuthbert for the
+change and Jordan Chapman for added tests.
+
+..
+
+.. bpo: 31902
+.. date: 2017-10-30-12-44-50
+.. nonce: a07fa57
+.. section: Core and Builtins
+
+Fix the ``col_offset`` attribute for ast nodes ``ast.AsyncFor``,
+``ast.AsyncFunctionDef``, and ``ast.AsyncWith``. Previously, ``col_offset``
+pointed to the keyword after ``async``.
+
+..
+
+.. bpo: 25862
+.. date: 2017-10-07-10-13-15
+.. nonce: FPYBA5
+.. section: Core and Builtins
+
+Fix assertion failures in the ``tell()`` method of ``io.TextIOWrapper``.
+Patch by Zackery Spytz.
+
+..
+
+.. bpo: 21983
+.. date: 2017-10-02-21-02-14
+.. nonce: UoC319
+.. section: Core and Builtins
+
+Fix a crash in `ctypes.cast()` in case the type argument is a ctypes
+structured data type. Patch by Eryk Sun and Oren Milman.
+
+..
+
+.. bpo: 31577
+.. date: 2017-09-25-20-36-24
+.. nonce: jgYsSA
+.. section: Core and Builtins
+
+Fix a crash in `os.utime()` in case of a bad ns argument. Patch by Oren
+Milman.
+
+..
+
+.. bpo: 29832
+.. date: 2017-09-12-08-11-01
+.. nonce: Kuf2M7
+.. section: Core and Builtins
+
+Remove references to 'getsockaddrarg' from various socket error messages.
+Patch by Oren Milman.
+
+..
+
+.. bpo: 35845
+.. date: 2019-02-02-00-04-01
+.. nonce: 1jx2wk
+.. section: Library
+
+Add 'order' parameter to memoryview.tobytes().
+
+..
+
+.. bpo: 35864
+.. date: 2019-01-30-20-22-36
+.. nonce: ig9KnG
+.. section: Library
+
+The _asdict() method for collections.namedtuple now returns a regular dict
+instead of an OrderedDict.
+
+..
+
+.. bpo: 35537
+.. date: 2019-01-29-17-24-52
+.. nonce: Q0ktFC
+.. section: Library
+
+An ExitStack is now used internally within subprocess.Popen to clean up pipe
+file handles. No behavior change in normal operation. But if closing one
+handle were ever to cause an exception, the others will now be closed
+instead of leaked. (patch by Giampaolo Rodola)
+
+..
+
+.. bpo: 35847
+.. date: 2019-01-29-09-11-09
+.. nonce: eiSi4t
+.. section: Library
+
+RISC-V needed the CTYPES_PASS_BY_REF_HACK. Fixes ctypes Structure
+test_pass_by_value.
+
+..
+
+.. bpo: 35813
+.. date: 2019-01-23-22-44-37
+.. nonce: Yobj-Y
+.. section: Library
+
+Shared memory submodule added to multiprocessing to avoid need for
+serialization between processes
+
+..
+
+.. bpo: 35780
+.. date: 2019-01-19-17-01-43
+.. nonce: CLf7fT
+.. section: Library
+
+Fix lru_cache() errors arising in recursive, reentrant, or multi-threaded
+code. These errors could result in orphan links and in the cache being
+trapped in a state with fewer than the specified maximum number of links.
+Fix handling of negative maxsize which should have been treated as zero. Fix
+errors in toggling the "full" status flag. Fix misordering of links when
+errors are encountered. Sync-up the C code and pure Python code for the
+space saving path in functions with a single positional argument. In this
+common case, the space overhead of an lru cache entry is reduced by almost
+half. Fix counting of cache misses. In error cases, the miss count was out
+of sync with the actual number of times the underlying user function was
+called.
+
+..
+
+.. bpo: 35537
+.. date: 2019-01-18-13-44-13
+.. nonce: R1lbTl
+.. section: Library
+
+:func:`os.posix_spawn` and :func:`os.posix_spawnp` now have a *setsid*
+parameter.
+
+..
+
+.. bpo: 23846
+.. date: 2019-01-15-13-31-30
+.. nonce: LT_qL8
+.. section: Library
+
+:class:`asyncio.ProactorEventLoop` now catches and logs send errors when the
+self-pipe is full.
+
+..
+
+.. bpo: 34323
+.. date: 2019-01-14-17-34-36
+.. nonce: CRErrt
+.. section: Library
+
+:mod:`asyncio`: Enhance ``IocpProactor.close()`` log: wait 1 second before
+the first log, then log every second. Log also the number of seconds since
+``close()`` was called.
+
+..
+
+.. bpo: 35674
+.. date: 2019-01-14-14-13-08
+.. nonce: kamWqz
+.. section: Library
+
+Add a new :func:`os.posix_spawnp` function. Patch by Joannah Nanjekye.
+
+..
+
+.. bpo: 35733
+.. date: 2019-01-13-18-42-41
+.. nonce: eFfLiv
+.. section: Library
+
+``ast.Constant(boolean)`` no longer an instance of :class:`ast.Num`. Patch
+by Anthony Sottile.
+
+..
+
+.. bpo: 35726
+.. date: 2019-01-13-01-33-00
+.. nonce: dasdas
+.. section: Library
+
+QueueHandler.prepare() now makes a copy of the record before modifying and
+enqueueing it, to avoid affecting other handlers in the chain.
+
+..
+
+.. bpo: 35719
+.. date: 2019-01-11-20-21-59
+.. nonce: qyRcpE
+.. section: Library
+
+Sped up multi-argument :mod:`math` functions atan2(), copysign(),
+remainder() and hypot() by 1.3--2.5 times.
+
+..
+
+.. bpo: 35717
+.. date: 2019-01-11-17-56-15
+.. nonce: 6TDTB_
+.. section: Library
+
+Fix KeyError exception raised when using enums and compile. Patch
+contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 35699
+.. date: 2019-01-11-07-09-25
+.. nonce: VDiENF
+.. section: Library
+
+Fixed detection of Visual Studio Build Tools 2017 in distutils
+
+..
+
+.. bpo: 32710
+.. date: 2019-01-10-15-55-10
+.. nonce: KwECPu
+.. section: Library
+
+Fix memory leaks in asyncio ProactorEventLoop on overlapped operation
+failure.
+
+..
+
+.. bpo: 35702
+.. date: 2019-01-10-14-03-12
+.. nonce: _ct_0H
+.. section: Library
+
+The :data:`time.CLOCK_UPTIME_RAW` constant is now available for macOS 10.12.
+
+..
+
+.. bpo: 32710
+.. date: 2019-01-08-14-00-52
+.. nonce: Sn5Ujj
+.. section: Library
+
+Fix a memory leak in asyncio in the ProactorEventLoop when ``ReadFile()`` or
+``WSASend()`` overlapped operation fail immediately: release the internal
+buffer.
+
+..
+
+.. bpo: 35682
+.. date: 2019-01-08-01-54-02
+.. nonce: KDM9lk
+.. section: Library
+
+Fix ``asyncio.ProactorEventLoop.sendfile()``: don't attempt to set the
+result of an internal future if it's already done.
+
+..
+
+.. bpo: 35283
+.. date: 2019-01-07-17-17-16
+.. nonce: WClosC
+.. section: Library
+
+Add a deprecated warning for the :meth:`threading.Thread.isAlive` method.
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 35664
+.. date: 2019-01-04-22-18-25
+.. nonce: Z-Gyyj
+.. section: Library
+
+Improve operator.itemgetter() performance by 33% with optimized argument
+handling and with adding a fast path for the common case of a single
+non-negative integer index into a tuple (which is the typical use case in
+the standard library).
+
+..
+
+.. bpo: 35643
+.. date: 2019-01-02-20-04-49
+.. nonce: DaMiaV
+.. section: Library
+
+Fixed a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py.
+Patch by Mickaël Schoentgen.
+
+..
+
+.. bpo: 35619
+.. date: 2018-12-30-19-50-36
+.. nonce: ZRXdhy
+.. section: Library
+
+Improved support of custom data descriptors in :func:`help` and
+:mod:`pydoc`.
+
+..
+
+.. bpo: 28503
+.. date: 2018-12-30-14-56-33
+.. nonce: V4kNN3
+.. section: Library
+
+The `crypt` module now internally uses the `crypt_r()` library function
+instead of `crypt()` when available.
+
+..
+
+.. bpo: 35614
+.. date: 2018-12-30-01-10-50
+.. nonce: cnkM4f
+.. section: Library
+
+Fixed help() on metaclasses. Patch by Sanyam Khurana.
+
+..
+
+.. bpo: 35568
+.. date: 2018-12-27-19-23-00
+.. nonce: PutiOC
+.. section: Library
+
+Expose ``raise(signum)`` as `raise_signal`
+
+..
+
+.. bpo: 35588
+.. date: 2018-12-26-10-55-59
+.. nonce: PSR6Ez
+.. section: Library
+
+The floor division and modulo operations and the :func:`divmod` function on
+:class:`fractions.Fraction` types are 2--4x faster. Patch by Stefan Behnel.
+
+..
+
+.. bpo: 35585
+.. date: 2018-12-26-02-28-00
+.. nonce: Lkzd3Z
+.. section: Library
+
+Speed-up building enums by value, e.g. http.HTTPStatus(200).
+
+..
+
+.. bpo: 30561
+.. date: 2018-12-23-22-27-59
+.. nonce: PSRQ2w
+.. section: Library
+
+random.gammavariate(1.0, beta) now computes the same result as
+random.expovariate(1.0 / beta). This synchronizes the two algorithms and
+eliminates some idiosyncrasies in the old implementation. It does however
+produce a difference stream of random variables than it used to.
+
+..
+
+.. bpo: 35537
+.. date: 2018-12-20-16-24-51
+.. nonce: z4E7aA
+.. section: Library
+
+The :mod:`subprocess` module can now use the :func:`os.posix_spawn` function
+in some cases for better performance.
+
+..
+
+.. bpo: 35526
+.. date: 2018-12-18-21-12-25
+.. nonce: fYvo6H
+.. section: Library
+
+Delaying the 'joke' of barry_as_FLUFL.mandatory to Python version 4.0
+
+..
+
+.. bpo: 35523
+.. date: 2018-12-18-13-52-13
+.. nonce: SkoMno
+.. section: Library
+
+Remove :mod:`ctypes` callback workaround: no longer create a callback at
+startup. Avoid SELinux alert on ``import ctypes`` and ``import uuid``.
+
+..
+
+.. bpo: 31784
+.. date: 2018-12-17-11-43-11
+.. nonce: W0gDjC
+.. section: Library
+
+:func:`uuid.uuid1` now calls :func:`time.time_ns` rather than
+``int(time.time() * 1e9)``.
+
+..
+
+.. bpo: 35513
+.. date: 2018-12-16-23-28-49
+.. nonce: pn-Zh3
+.. section: Library
+
+:class:`~unittest.runner.TextTestRunner` of :mod:`unittest.runner` now uses
+:func:`time.perf_counter` rather than :func:`time.time` to measure the
+execution time of a test: :func:`time.time` can go backwards, whereas
+:func:`time.perf_counter` is monotonic.
+
+..
+
+.. bpo: 35502
+.. date: 2018-12-14-23-56-48
+.. nonce: gLHuFS
+.. section: Library
+
+Fixed reference leaks in :class:`xml.etree.ElementTree.TreeBuilder` in case
+of unfinished building of the tree (in particular when an error was raised
+during parsing XML).
+
+..
+
+.. bpo: 35348
+.. date: 2018-12-14-13-27-45
+.. nonce: u3Y2an
+.. section: Library
+
+Make :func:`platform.architecture` parsing of ``file`` command output more
+reliable: add the ``-b`` option to the ``file`` command to omit the
+filename, force the usage of the C locale, and search also the "shared
+object" pattern.
+
+..
+
+.. bpo: 35491
+.. date: 2018-12-14-12-12-15
+.. nonce: jHsNOU
+.. section: Library
+
+:mod:`multiprocessing`: Add ``Pool.__repr__()`` and enhance
+``BaseProcess.__repr__()`` (add pid and parent pid) to ease debugging. Pool
+state constant values are now strings instead of integers, for example
+``RUN`` value becomes ``'RUN'`` instead of ``0``.
+
+..
+
+.. bpo: 35477
+.. date: 2018-12-13-00-10-51
+.. nonce: hHyy06
+.. section: Library
+
+:meth:`multiprocessing.Pool.__enter__` now fails if the pool is not running:
+``with pool:`` fails if used more than once.
+
+..
+
+.. bpo: 31446
+.. date: 2018-12-12-22-52-34
+.. nonce: l--Fjz
+.. section: Library
+
+Copy command line that was passed to CreateProcessW since this function can
+change the content of the input buffer.
+
+..
+
+.. bpo: 35471
+.. date: 2018-12-12-16-25-21
+.. nonce: SK8jFC
+.. section: Library
+
+Python 2.4 dropped MacOS 9 support. The macpath module was deprecated in
+Python 3.7. The module is now removed.
+
+..
+
+.. bpo: 23057
+.. date: 2018-12-12-16-24-55
+.. nonce: OB4Z1Y
+.. section: Library
+
+Unblock Proactor event loop when keyboard interrupt is received on Windows
+
+..
+
+.. bpo: 35052
+.. date: 2018-12-10-09-48-27
+.. nonce: xE1ymg
+.. section: Library
+
+Fix xml.dom.minidom cloneNode() on a document with an entity: pass the
+correct arguments to the user data handler of an entity.
+
+..
+
+.. bpo: 20239
+.. date: 2018-12-09-21-35-49
+.. nonce: V4mWBL
+.. section: Library
+
+Allow repeated assignment deletion of :class:`unittest.mock.Mock`
+attributes. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 17185
+.. date: 2018-12-09-17-04-15
+.. nonce: SfSCJF
+.. section: Library
+
+Set ``__signature__`` on mock for :mod:`inspect` to get signature. Patch by
+Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 35445
+.. date: 2018-12-09-14-35-49
+.. nonce: LjvtsC
+.. section: Library
+
+Memory errors during creating posix.environ no longer ignored.
+
+..
+
+.. bpo: 35415
+.. date: 2018-12-06-14-44-21
+.. nonce: -HoK3d
+.. section: Library
+
+Validate fileno= argument to socket.socket().
+
+..
+
+.. bpo: 35424
+.. date: 2018-12-06-02-02-28
+.. nonce: gXxOJU
+.. section: Library
+
+:class:`multiprocessing.Pool` destructor now emits :exc:`ResourceWarning` if
+the pool is still running.
+
+..
+
+.. bpo: 35330
+.. date: 2018-12-06-00-43-13
+.. nonce: abB4BN
+.. section: Library
+
+When a :class:`Mock` instance was used to wrap an object, if `side_effect`
+is used in one of the mocks of it methods, don't call the original
+implementation and return the result of using the side effect the same way
+that it is done with return_value.
+
+..
+
+.. bpo: 35346
+.. date: 2018-12-05-22-52-21
+.. nonce: Okm9-S
+.. section: Library
+
+Drop Mac OS 9 and Rhapsody support from the :mod:`platform` module. Rhapsody
+last release was in 2000. Mac OS 9 last release was in 2001.
+
+..
+
+.. bpo: 10496
+.. date: 2018-12-05-17-42-49
+.. nonce: laV_IE
+.. section: Library
+
+:func:`~distutils.utils.check_environ` of :mod:`distutils.utils` now catches
+:exc:`KeyError` on calling :func:`pwd.getpwuid`: don't create the ``HOME``
+environment variable in this case.
+
+..
+
+.. bpo: 10496
+.. date: 2018-12-05-13-37-39
+.. nonce: VH-1Lp
+.. section: Library
+
+:func:`posixpath.expanduser` now returns the input *path* unchanged if the
+``HOME`` environment variable is not set and the current user has no home
+directory (if the current user identifier doesn't exist in the password
+database). This change fix the :mod:`site` module if the current user
+doesn't exist in the password database (if the user has no home directory).
+
+..
+
+.. bpo: 35389
+.. date: 2018-12-04-12-46-05
+.. nonce: CTZ9iA
+.. section: Library
+
+:func:`platform.libc_ver` now uses ``os.confstr('CS_GNU_LIBC_VERSION')`` if
+available and the *executable* parameter is not set.
+
+..
+
+.. bpo: 35394
+.. date: 2018-12-04-12-17-08
+.. nonce: fuTVDk
+.. section: Library
+
+Add empty slots to asyncio abstract protocols.
+
+..
+
+.. bpo: 35310
+.. date: 2018-12-03-19-45-00
+.. nonce: 9k28gR
+.. section: Library
+
+Fix a bug in :func:`select.select` where, in some cases, the file descriptor
+sequences were returned unmodified after a signal interruption, even though
+the file descriptors might not be ready yet. :func:`select.select` will now
+always return empty lists if a timeout has occurred. Patch by Oran Avraham.
+
+..
+
+.. bpo: 35380
+.. date: 2018-12-03-14-41-11
+.. nonce: SdRF9l
+.. section: Library
+
+Enable TCP_NODELAY on Windows for proactor asyncio event loop.
+
+..
+
+.. bpo: 35341
+.. date: 2018-12-02-13-50-52
+.. nonce: 32E8T_
+.. section: Library
+
+Add generic version of ``collections.OrderedDict`` to the ``typing`` module.
+Patch by Ismo Toijala.
+
+..
+
+.. bpo: 35371
+.. date: 2018-12-01-13-44-12
+.. nonce: fTAwlX
+.. section: Library
+
+Fixed possible crash in ``os.utime()`` on Windows when pass incorrect
+arguments.
+
+..
+
+.. bpo: 35346
+.. date: 2018-11-29-12-42-13
+.. nonce: OmTY5c
+.. section: Library
+
+:func:`platform.uname` now redirects ``stderr`` to :data:`os.devnull` when
+running external programs like ``cmd /c ver``.
+
+..
+
+.. bpo: 35066
+.. date: 2018-11-29-09-38-40
+.. nonce: Nwej2s
+.. section: Library
+
+Previously, calling the strftime() method on a datetime object with a
+trailing '%' in the format string would result in an exception. However,
+this only occurred when the datetime C module was being used; the python
+implementation did not match this behavior. Datetime is now PEP-399
+compliant, and will not throw an exception on a trailing '%'.
+
+..
+
+.. bpo: 35345
+.. date: 2018-11-29-00-55-33
+.. nonce: vepCSJ
+.. section: Library
+
+The function `platform.popen` has been removed, it was deprecated since
+Python 3.3: use :func:`os.popen` instead.
+
+..
+
+.. bpo: 35344
+.. date: 2018-11-29-00-23-25
+.. nonce: 4QOPJQ
+.. section: Library
+
+On macOS, :func:`platform.platform` now uses :func:`platform.mac_ver`, if it
+returns a non-empty release string, to get the macOS version rather than the
+darwin version.
+
+..
+
+.. bpo: 35312
+.. date: 2018-11-25-20-05-33
+.. nonce: wbw0zO
+.. section: Library
+
+Make ``lib2to3.pgen2.parse.ParseError`` round-trip pickle-able. Patch by
+Anthony Sottile.
+
+..
+
+.. bpo: 35308
+.. date: 2018-11-24-10-33-42
+.. nonce: 9--2iy
+.. section: Library
+
+Fix regression in ``webbrowser`` where default browsers may be preferred
+over browsers in the ``BROWSER`` environment variable.
+
+..
+
+.. bpo: 24746
+.. date: 2018-11-22-15-22-56
+.. nonce: eSLKBE
+.. section: Library
+
+Avoid stripping trailing whitespace in doctest fancy diff. Original patch by
+R. David Murray & Jairo Trad. Enhanced by Sanyam Khurana.
+
+..
+
+.. bpo: 28604
+.. date: 2018-11-20-13-34-01
+.. nonce: iiih5h
+.. section: Library
+
+:func:`locale.localeconv` now sets temporarily the ``LC_CTYPE`` locale to
+the ``LC_MONETARY`` locale if the two locales are different and monetary
+strings are non-ASCII. This temporary change affects other threads.
+
+..
+
+.. bpo: 35277
+.. date: 2018-11-19-07-22-04
+.. nonce: dsD-2E
+.. section: Library
+
+Update ensurepip to install pip 18.1 and setuptools 40.6.2.
+
+..
+
+.. bpo: 24209
+.. date: 2018-11-18-18-44-40
+.. nonce: p3YWOf
+.. section: Library
+
+Adds IPv6 support when invoking http.server directly.
+
+..
+
+.. bpo: 35226
+.. date: 2018-11-15-07-14-32
+.. nonce: wJPEEe
+.. section: Library
+
+Recursively check arguments when testing for equality of
+:class:`unittest.mock.call` objects and add note that tracking of parameters
+used to create ancestors of mocks in ``mock_calls`` is not possible.
+
+..
+
+.. bpo: 29564
+.. date: 2018-11-12-17-40-04
+.. nonce: SFNBT5
+.. section: Library
+
+The warnings module now suggests to enable tracemalloc if the source is
+specified, the tracemalloc module is available, but tracemalloc is not
+tracing memory allocations.
+
+..
+
+.. bpo: 35189
+.. date: 2018-11-09-13-35-36
+.. nonce: gog-sl
+.. section: Library
+
+Modify the following fnctl function to retry if interrupted by a signal
+(EINTR): flock, lockf, fnctl
+
+..
+
+.. bpo: 30064
+.. date: 2018-11-09-01-18-51
+.. nonce: IF5mH6
+.. section: Library
+
+Use add_done_callback() in sock_* asyncio API to unsubscribe reader/writer
+early on calcellation.
+
+..
+
+.. bpo: 35186
+.. date: 2018-11-08-14-22-29
+.. nonce: 5m22Mj
+.. section: Library
+
+Removed the "built with" comment added when ``setup.py upload`` is used with
+either ``bdist_rpm`` or ``bdist_dumb``.
+
+..
+
+.. bpo: 35152
+.. date: 2018-11-03-10-12-04
+.. nonce: xpqskp
+.. section: Library
+
+Allow sending more than 2 GB at once on a multiprocessing connection on
+non-Windows systems.
+
+..
+
+.. bpo: 35062
+.. date: 2018-10-29-23-09-24
+.. nonce: dQS1ng
+.. section: Library
+
+Fix incorrect parsing of :class:`_io.IncrementalNewlineDecoder`'s
+*translate* argument.
+
+..
+
+.. bpo: 35065
+.. date: 2018-10-29-10-18-31
+.. nonce: CulMN8
+.. section: Library
+
+Remove `StreamReaderProtocol._untrack_reader`. The call to `_untrack_reader`
+is currently performed too soon, causing the protocol to forget about the
+reader before `connection_lost` can run and feed the EOF to the reader.
+
+..
+
+.. bpo: 34160
+.. date: 2018-10-27-21-11-42
+.. nonce: UzyPZf
+.. section: Library
+
+ElementTree and minidom now preserve the attribute order specified by the
+user.
+
+..
+
+.. bpo: 35079
+.. date: 2018-10-26-22-53-16
+.. nonce: Tm5jvF
+.. section: Library
+
+Improve difflib.SequenceManager.get_matching_blocks doc by adding
+'non-overlapping' and changing '!=' to '<'.
+
+..
+
+.. bpo: 33710
+.. date: 2018-10-26-21-12-55
+.. nonce: Q5oXc6
+.. section: Library
+
+Deprecated ``l*gettext()`` functions and methods in the :mod:`gettext`
+module. They return encoded bytes instead of Unicode strings and are
+artifacts from Python 2 times. Also deprecated functions and methods related
+to setting the charset for ``l*gettext()`` functions and methods.
+
+..
+
+.. bpo: 35017
+.. date: 2018-10-26-00-11-21
+.. nonce: 6Ez4Cv
+.. section: Library
+
+:meth:`socketserver.BaseServer.serve_forever` now exits immediately if it's
+:meth:`~socketserver.BaseServer.shutdown` method is called while it is
+polling for new events.
+
+..
+
+.. bpo: 35024
+.. date: 2018-10-25-15-43-32
+.. nonce: ltSrtr
+.. section: Library
+
+`importlib` no longer logs `wrote <bytecode path>` redundantly after
+`(created|could not create) <bytecode path>` is already logged. Patch by
+Quentin Agren.
+
+..
+
+.. bpo: 35047
+.. date: 2018-10-25-09-59-00
+.. nonce: abbaa
+.. section: Library
+
+``unittest.mock`` now includes mock calls in exception messages if
+``assert_not_called``, ``assert_called_once``, or
+``assert_called_once_with`` fails. Patch by Petter Strandmark.
+
+..
+
+.. bpo: 31047
+.. date: 2018-10-25-09-37-03
+.. nonce: kBbX8r
+.. section: Library
+
+Fix ``ntpath.abspath`` regression where it didn't remove a trailing
+separator on Windows. Patch by Tim Graham.
+
+..
+
+.. bpo: 35053
+.. date: 2018-10-23-18-58-12
+.. nonce: G82qwh
+.. section: Library
+
+tracemalloc now tries to update the traceback when an object is reused from
+a "free list" (optimization for faster object creation, used by the builtin
+list type for example).
+
+..
+
+.. bpo: 31553
+.. date: 2018-10-23-14-46-47
+.. nonce: JxRkAW
+.. section: Library
+
+Add the --json-lines option to json.tool. Patch by hongweipeng.
+
+..
+
+.. bpo: 34794
+.. date: 2018-10-21-14-53-19
+.. nonce: yt3R4-
+.. section: Library
+
+Fixed a leak in Tkinter when pass the Python wrapper around Tcl_Obj back to
+Tcl/Tk.
+
+..
+
+.. bpo: 34909
+.. date: 2018-10-20-00-29-43
+.. nonce: Ew_8DC
+.. section: Library
+
+Enum: fix grandchildren subclassing when parent mixed with concrete data
+types.
+
+..
+
+.. bpo: 35022
+.. date: 2018-10-18-17-57-28
+.. nonce: KeEF4T
+.. section: Library
+
+:class:`unittest.mock.MagicMock` now supports the ``__fspath__`` method
+(from :class:`os.PathLike`).
+
+..
+
+.. bpo: 35008
+.. date: 2018-10-17-11-54-04
+.. nonce: dotef_
+.. section: Library
+
+Fixed references leaks when call the ``__setstate__()`` method of
+:class:`xml.etree.ElementTree.Element` in the C implementation for already
+initialized element.
+
+..
+
+.. bpo: 23420
+.. date: 2018-10-17-11-00-00
+.. nonce: Lq74Uu
+.. section: Library
+
+Verify the value for the parameter '-s' of the cProfile CLI. Patch by Robert
+Kuska
+
+..
+
+.. bpo: 33947
+.. date: 2018-10-17-02-15-23
+.. nonce: SRuq3T
+.. section: Library
+
+dataclasses now handle recursive reprs without raising RecursionError.
+
+..
+
+.. bpo: 34890
+.. date: 2018-10-15-23-10-41
+.. nonce: 77E770
+.. section: Library
+
+Make :func:`inspect.iscoroutinefunction`,
+:func:`inspect.isgeneratorfunction` and :func:`inspect.isasyncgenfunction`
+work with :func:`functools.partial`. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 34521
+.. date: 2018-10-13-19-15-23
+.. nonce: YPaiTK
+.. section: Library
+
+Use :func:`socket.CMSG_SPACE` to calculate ancillary data size instead of
+:func:`socket.CMSG_LEN` in :func:`multiprocessing.reduction.recvfds` as
+:rfc:`3542` requires the use of the former for portable applications.
+
+..
+
+.. bpo: 31522
+.. date: 2018-10-13-18-16-20
+.. nonce: rWBb43
+.. section: Library
+
+The `mailbox.mbox.get_string` function *from_* parameter can now
+successfully be set to a non-default value.
+
+..
+
+.. bpo: 34970
+.. date: 2018-10-13-11-14-13
+.. nonce: SrJTY7
+.. section: Library
+
+Protect tasks weak set manipulation in ``asyncio.all_tasks()``
+
+..
+
+.. bpo: 34969
+.. date: 2018-10-13-07-46-50
+.. nonce: Mfnhjb
+.. section: Library
+
+gzip: Add --fast, --best on the gzip CLI, these parameters will be used for
+the fast compression method (quick) or the best method compress (slower, but
+smaller file). Also, change the default compression level to 6 (tradeoff).
+
+..
+
+.. bpo: 16965
+.. date: 2018-10-12-20-30-42
+.. nonce: xo5LAr
+.. section: Library
+
+The :term:`2to3` :2to3fixer:`execfile` fixer now opens the file with mode
+``'rb'``. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 34966
+.. date: 2018-10-12-18-57-52
+.. nonce: WZeBHO
+.. section: Library
+
+:mod:`pydoc` now supports aliases not only to methods defined in the end
+class, but also to inherited methods. The docstring is not duplicated for
+aliases.
+
+..
+
+.. bpo: 34926
+.. date: 2018-10-10-00-22-57
+.. nonce: CA0rqd
+.. section: Library
+
+:meth:`mimetypes.MimeTypes.guess_type` now accepts :term:`path-like object`
+in addition to url strings. Patch by Mayank Asthana.
+
+..
+
+.. bpo: 23831
+.. date: 2018-10-09-15-44-04
+.. nonce: 2CL7lL
+.. section: Library
+
+Add ``moveto()`` method to the ``tkinter.Canvas`` widget. Patch by Juliette
+Monsel.
+
+..
+
+.. bpo: 34941
+.. date: 2018-10-09-14-42-16
+.. nonce: 1Q5QKv
+.. section: Library
+
+Methods ``find()``, ``findtext()`` and ``findall()`` of the ``Element``
+class in the :mod:`xml.etree.ElementTree` module are now able to find
+children which are instances of ``Element`` subclasses.
+
+..
+
+.. bpo: 32680
+.. date: 2018-10-09-14-25-36
+.. nonce: z2FbOp
+.. section: Library
+
+:class:`smtplib.SMTP` objects now always have a `sock` attribute present
+
+..
+
+.. bpo: 34769
+.. date: 2018-10-09-11-01-16
+.. nonce: cSkkZt
+.. section: Library
+
+Fix for async generators not finalizing when event loop is in debug mode and
+garbage collector runs in another thread.
+
+..
+
+.. bpo: 34936
+.. date: 2018-10-08-21-05-11
+.. nonce: 3tRqdq
+.. section: Library
+
+Fix ``TclError`` in ``tkinter.Spinbox.selection_element()``. Patch by
+Juliette Monsel.
+
+..
+
+.. bpo: 34829
+.. date: 2018-10-08-16-04-36
+.. nonce: B7v7D0
+.. section: Library
+
+Add methods ``selection_from``, ``selection_range``, ``selection_present``
+and ``selection_to`` to the ``tkinter.Spinbox`` for consistency with the
+``tkinter.Entry`` widget. Patch by Juliette Monsel.
+
+..
+
+.. bpo: 34911
+.. date: 2018-10-08-15-22-02
+.. nonce: hCy0Fv
+.. section: Library
+
+Added *secure_protocols* argument to *http.cookiejar.DefaultCookiePolicy* to
+allow for tweaking of protocols and also to add support by default for
+*wss*, the secure websocket protocol.
+
+..
+
+.. bpo: 34922
+.. date: 2018-10-07-21-18-52
+.. nonce: 37IdsA
+.. section: Library
+
+Fixed integer overflow in the :meth:`~hashlib.shake.digest()` and
+:meth:`~hashlib.shake.hexdigest()` methods for the SHAKE algorithm in the
+:mod:`hashlib` module.
+
+..
+
+.. bpo: 34925
+.. date: 2018-10-07-20-37-02
+.. nonce: KlkZ-Y
+.. section: Library
+
+25% speedup in argument parsing for the functions in the bisect module.
+
+..
+
+.. bpo: 34900
+.. date: 2018-10-05-05-55-53
+.. nonce: 8RNiFu
+.. section: Library
+
+Fixed :meth:`unittest.TestCase.debug` when used to call test methods with
+subtests. Patch by Bruno Oliveira.
+
+..
+
+.. bpo: 34844
+.. date: 2018-10-04-20-44-45
+.. nonce: Hnuxav
+.. section: Library
+
+logging.Formatter enhancement - Ensure styles and fmt matches in
+logging.Formatter - Added validate method in each format style class:
+StrFormatStyle, PercentStyle, StringTemplateStyle. - This method is called
+in the constructor of logging.Formatter class - Also re-raise the KeyError
+in the format method of each style class, so it would a bit clear that it's
+an error with the invalid format fields.
+
+..
+
+.. bpo: 34897
+.. date: 2018-10-04-20-25-35
+.. nonce: rNE2Cy
+.. section: Library
+
+Adjust test.support.missing_compiler_executable check so that a nominal
+command name of "" is ignored. Patch by Michael Felt.
+
+..
+
+.. bpo: 34871
+.. date: 2018-10-04-18-46-54
+.. nonce: t3X-dB
+.. section: Library
+
+Fix inspect module polluted ``sys.modules`` when parsing
+``__text_signature__`` of callable.
+
+..
+
+.. bpo: 34898
+.. date: 2018-10-04-17-23-43
+.. nonce: Wo2PoJ
+.. section: Library
+
+Add `mtime` argument to `gzip.compress` for reproducible output. Patch by
+Guo Ci Teo.
+
+..
+
+.. bpo: 28441
+.. date: 2018-10-04-15-53-14
+.. nonce: 2sQENe
+.. section: Library
+
+On Cygwin and MinGW, ensure that ``sys.executable`` always includes the full
+filename in the path, including the ``.exe`` suffix (unless it is a symbolic
+link).
+
+..
+
+.. bpo: 34866
+.. date: 2018-10-03-11-07-28
+.. nonce: ML6KpJ
+.. section: Library
+
+Adding ``max_num_fields`` to ``cgi.FieldStorage`` to make DOS attacks harder
+by limiting the number of ``MiniFieldStorage`` objects created by
+``FieldStorage``.
+
+..
+
+.. bpo: 34711
+.. date: 2018-10-03-09-25-02
+.. nonce: HeOmKR
+.. section: Library
+
+http.server ensures it reports HTTPStatus.NOT_FOUND when the local path ends
+with "/" and is not a directory, even if the underlying OS (e.g. AIX)
+accepts such paths as a valid file reference. Patch by Michael Felt.
+
+..
+
+.. bpo: 34872
+.. date: 2018-10-02-19-36-34
+.. nonce: yWZRhI
+.. section: Library
+
+Fix self-cancellation in C implementation of asyncio.Task
+
+..
+
+.. bpo: 34849
+.. date: 2018-09-30-08-08-14
+.. nonce: NXK9Ff
+.. section: Library
+
+Don't log waiting for ``selector.select`` in asyncio loop iteration. The
+waiting is pretty normal for any asyncio program, logging its time just adds
+a noise to logs without any useful information provided.
+
+..
+
+.. bpo: 34022
+.. date: 2018-09-27-13-14-15
+.. nonce: E2cl0r
+.. section: Library
+
+The :envvar:`SOURCE_DATE_EPOCH` environment variable no longer overrides the
+value of the *invalidation_mode* argument to :func:`py_compile.compile`, and
+determines its default value instead.
+
+..
+
+.. bpo: 34819
+.. date: 2018-09-27-09-45-00
+.. nonce: 9ZaFyO
+.. section: Library
+
+Use a monotonic clock to compute timeouts in :meth:`Executor.map` and
+:func:`as_completed`, in order to prevent timeouts from deviating when the
+system clock is adjusted.
+
+..
+
+.. bpo: 34758
+.. date: 2018-09-26-14-09-34
+.. nonce: bRBfAi
+.. section: Library
+
+Add .wasm -> application/wasm to list of recognized file types and content
+type headers
+
+..
+
+.. bpo: 34789
+.. date: 2018-09-25-15-48-50
+.. nonce: rPOEj5
+.. section: Library
+
+:func:`xml.sax.make_parser` now accepts any iterable as its *parser_list*
+argument. Patch by Andrés Delfino.
+
+..
+
+.. bpo: 34334
+.. date: 2018-09-25-08-42-34
+.. nonce: rSPBW9
+.. section: Library
+
+In :class:`QueueHandler`, clear `exc_text` from :class:`LogRecord` to
+prevent traceback from being written twice.
+
+..
+
+.. bpo: 34687
+.. date: 2018-09-24-17-14-57
+.. nonce: Fku_8S
+.. section: Library
+
+On Windows, asyncio now uses ProactorEventLoop, instead of
+SelectorEventLoop, by default.
+
+..
+
+.. bpo: 5950
+.. date: 2018-09-24-14-21-58
+.. nonce: xH0ekQ
+.. section: Library
+
+Support reading zip files with archive comments in :mod:`zipimport`.
+
+..
+
+.. bpo: 32892
+.. date: 2018-09-20-17-35-05
+.. nonce: TOUBdg
+.. section: Library
+
+The parser now represents all constants as :class:`ast.Constant` instead of
+using specific constant AST types (``Num``, ``Str``, ``Bytes``,
+``NameConstant`` and ``Ellipsis``). These classes are considered deprecated
+and will be removed in future Python versions.
+
+..
+
+.. bpo: 34728
+.. date: 2018-09-20-16-55-43
+.. nonce: CUE8LU
+.. section: Library
+
+Add deprecation warning when `loop` is used in methods: `asyncio.sleep`,
+`asyncio.wait` and `asyncio.wait_for`.
+
+..
+
+.. bpo: 34738
+.. date: 2018-09-19-16-51-04
+.. nonce: Pr3-iG
+.. section: Library
+
+ZIP files created by :mod:`distutils` will now include entries for
+directories.
+
+..
+
+.. bpo: 34659
+.. date: 2018-09-16-17-04-16
+.. nonce: CWemzH
+.. section: Library
+
+Add an optional *initial* argument to itertools.accumulate().
+
+..
+
+.. bpo: 29577
+.. date: 2018-09-14-20-00-47
+.. nonce: RzwKFD
+.. section: Library
+
+Support multiple mixin classes when creating Enums.
+
+..
+
+.. bpo: 34670
+.. date: 2018-09-14-14-29-45
+.. nonce: 17XwGB
+.. section: Library
+
+Add SSLContext.post_handshake_auth and
+SSLSocket.verify_client_post_handshake for TLS 1.3's post handshake
+authentication feature.
+
+..
+
+.. bpo: 32718
+.. date: 2018-09-14-12-38-49
+.. nonce: ICYQbt
+.. section: Library
+
+The Activate.ps1 script from venv works with PowerShell Core 6.1 and is now
+available under all operating systems.
+
+..
+
+.. bpo: 31177
+.. date: 2018-09-14-10-38-18
+.. nonce: Sv91TN
+.. section: Library
+
+Fix bug that prevented using :meth:`reset_mock
+<unittest.mock.Mock.reset_mock>` on mock instances with deleted attributes
+
+..
+
+.. bpo: 34672
+.. date: 2018-09-13-21-04-23
+.. nonce: BYuKKS
+.. section: Library
+
+Add a workaround, so the ``'Z'`` :func:`time.strftime` specifier on the musl
+C library can work in some cases.
+
+..
+
+.. bpo: 34666
+.. date: 2018-09-13-11-49-52
+.. nonce: 3uLtWv
+.. section: Library
+
+Implement ``asyncio.StreamWriter.awrite`` and
+``asyncio.StreamWriter.aclose()`` coroutines. Methods are needed for
+providing a consistent stream API with control flow switched on by default.
+
+..
+
+.. bpo: 6721
+.. date: 2018-09-13-10-09-19
+.. nonce: ZUL_F3
+.. section: Library
+
+Acquire the logging module's commonly used internal locks while fork()ing to
+avoid deadlocks in the child process.
+
+..
+
+.. bpo: 34658
+.. date: 2018-09-13-03-59-43
+.. nonce: ykZ-ia
+.. section: Library
+
+Fix a rare interpreter unhandled exception state SystemError only seen when
+using subprocess with a preexec_fn while an after_parent handler has been
+registered with os.register_at_fork and the fork system call fails.
+
+..
+
+.. bpo: 34652
+.. date: 2018-09-12-14-46-51
+.. nonce: Rt1m1b
+.. section: Library
+
+Ensure :func:`os.lchmod` is never defined on Linux.
+
+..
+
+.. bpo: 34638
+.. date: 2018-09-12-10-33-44
+.. nonce: xaeZX5
+.. section: Library
+
+Store a weak reference to stream reader to break strong references loop
+between reader and protocol. It allows to detect and close the socket if
+the stream is deleted (garbage collected) without ``close()`` call.
+
+..
+
+.. bpo: 34536
+.. date: 2018-09-11-15-49-09
+.. nonce: 3IPIH5
+.. section: Library
+
+`Enum._missing_`: raise `ValueError` if None returned and `TypeError` if
+non-member is returned.
+
+..
+
+.. bpo: 34636
+.. date: 2018-09-11-15-04-05
+.. nonce: capCmt
+.. section: Library
+
+Speed up re scanning of many non-matching characters for \s \w and \d within
+bytes objects. (microoptimization)
+
+..
+
+.. bpo: 24412
+.. date: 2018-09-11-10-51-16
+.. nonce: i-F_E5
+.. section: Library
+
+Add :func:`~unittest.addModuleCleanup()` and
+:meth:`~unittest.TestCase.addClassCleanup()` to unittest to support cleanups
+for :func:`~unittest.setUpModule()` and
+:meth:`~unittest.TestCase.setUpClass()`. Patch by Lisa Roach.
+
+..
+
+.. bpo: 34630
+.. date: 2018-09-11-10-00-53
+.. nonce: YbqUS6
+.. section: Library
+
+Don't log SSL certificate errors in asyncio code (connection error logging
+is skipped already).
+
+..
+
+.. bpo: 32490
+.. date: 2018-09-11-01-25-35
+.. nonce: ROIDO1
+.. section: Library
+
+Prevent filename duplication in :mod:`subprocess` exception messages. Patch
+by Zackery Spytz.
+
+..
+
+.. bpo: 34363
+.. date: 2018-09-10-21-09-34
+.. nonce: YuSb0T
+.. section: Library
+
+dataclasses.asdict() and .astuple() now handle namedtuples correctly.
+
+..
+
+.. bpo: 34625
+.. date: 2018-09-10-17-46-51
+.. nonce: D2YfDz
+.. section: Library
+
+Update vendorized expat library version to 2.2.6.
+
+..
+
+.. bpo: 32270
+.. date: 2018-09-10-14-15-53
+.. nonce: wSJjuD
+.. section: Library
+
+The subprocess module no longer mistakenly closes redirected fds even when
+they were in pass_fds when outside of the default {0, 1, 2} set.
+
+..
+
+.. bpo: 34622
+.. date: 2018-09-10-13-04-40
+.. nonce: tpv_rN
+.. section: Library
+
+Create a dedicated ``asyncio.CancelledError``, ``asyncio.InvalidStateError``
+and ``asyncio.TimeoutError`` exception classes. Inherit them from
+corresponding exceptions from ``concurrent.futures`` package. Extract
+``asyncio`` exceptions into a separate file.
+
+..
+
+.. bpo: 34610
+.. date: 2018-09-08-12-57-07
+.. nonce: wmoP5j
+.. section: Library
+
+Fixed iterator of :class:`multiprocessing.managers.DictProxy`.
+
+..
+
+.. bpo: 34421
+.. date: 2018-09-07-10-57-00
+.. nonce: AKJISD
+.. section: Library
+
+Fix distutils logging for non-ASCII strings. This caused installation
+issues on Windows.
+
+..
+
+.. bpo: 34604
+.. date: 2018-09-07-10-16-34
+.. nonce: xL7-kG
+.. section: Library
+
+Fix possible mojibake in the error message of `pwd.getpwnam` and
+`grp.getgrnam` using string representation because of invisible characters
+or trailing whitespaces. Patch by William Grzybowski.
+
+..
+
+.. bpo: 30977
+.. date: 2018-09-06-10-07-46
+.. nonce: bP661V
+.. section: Library
+
+Make uuid.UUID use ``__slots__`` to reduce its memory footprint. Based on
+original patch by Wouter Bolsterlee.
+
+..
+
+.. bpo: 34574
+.. date: 2018-09-04-09-32-54
+.. nonce: X4RwYI
+.. section: Library
+
+OrderedDict iterators are not exhausted during pickling anymore. Patch by
+Sergey Fedoseev.
+
+..
+
+.. bpo: 8110
+.. date: 2018-09-03-23-54-35
+.. nonce: FExWI_
+.. section: Library
+
+Refactored :mod:`subprocess` to check for Windows-specific modules rather
+than ``sys.platform == 'win32'``.
+
+..
+
+.. bpo: 34530
+.. date: 2018-09-03-23-23-32
+.. nonce: h_Xsu7
+.. section: Library
+
+``distutils.spawn.find_executable()`` now falls back on :data:`os.defpath`
+if the ``PATH`` environment variable is not set.
+
+..
+
+.. bpo: 34563
+.. date: 2018-09-01-20-43-10
+.. nonce: 7NQK7B
+.. section: Library
+
+On Windows, fix multiprocessing.Connection for very large read: fix
+_winapi.PeekNamedPipe() and _winapi.ReadFile() for read larger than INT_MAX
+(usually ``2**31-1``).
+
+..
+
+.. bpo: 34558
+.. date: 2018-08-31-19-26-55
+.. nonce: MHv582
+.. section: Library
+
+Correct typo in Lib/ctypes/_aix.py
+
+..
+
+.. bpo: 34282
+.. date: 2018-08-31-06-28-03
+.. nonce: ztyXH8
+.. section: Library
+
+Move ``Enum._convert`` to ``EnumMeta._convert_`` and fix enum members
+getting shadowed by parent attributes.
+
+..
+
+.. bpo: 22872
+.. date: 2018-08-30-14-44-11
+.. nonce: NhIaZ9
+.. section: Library
+
+When the queue is closed, :exc:`ValueError` is now raised by
+:meth:`multiprocessing.Queue.put` and :meth:`multiprocessing.Queue.get`
+instead of :exc:`AssertionError` and :exc:`OSError`, respectively. Patch by
+Zackery Spytz.
+
+..
+
+.. bpo: 34515
+.. date: 2018-08-27-16-01-22
+.. nonce: S0Irst
+.. section: Library
+
+Fix parsing non-ASCII identifiers in :mod:`lib2to3.pgen2.tokenize` (PEP
+3131).
+
+..
+
+.. bpo: 13312
+.. date: 2018-08-24-17-31-27
+.. nonce: 6hA5La
+.. section: Library
+
+Avoids a possible integer underflow (undefined behavior) in the time
+module's year handling code when passed a very low negative year value.
+
+..
+
+.. bpo: 34472
+.. date: 2018-08-23-09-25-08
+.. nonce: cGyYrO
+.. section: Library
+
+Improved compatibility for streamed files in :mod:`zipfile`. Previously an
+optional signature was not being written and certain ZIP applications were
+not supported. Patch by Silas Sewell.
+
+..
+
+.. bpo: 34454
+.. date: 2018-08-22-21-59-08
+.. nonce: z7uG4b
+.. section: Library
+
+Fix the .fromisoformat() methods of datetime types crashing when given
+unicode with non-UTF-8-encodable code points. Specifically,
+datetime.fromisoformat() now accepts surrogate unicode code points used as
+the separator. Report and tests by Alexey Izbyshev, patch by Paul Ganssle.
+
+..
+
+.. bpo: 6700
+.. date: 2018-08-22-17-43-52
+.. nonce: hp7C4B
+.. section: Library
+
+Fix inspect.getsourcelines for module level frames/tracebacks. Patch by
+Vladimir Matveev.
+
+..
+
+.. bpo: 34171
+.. date: 2018-08-21-00-29-01
+.. nonce: 6LkWav
+.. section: Library
+
+Running the :mod:`trace` module no longer creates the ``trace.cover`` file.
+
+..
+
+.. bpo: 34441
+.. date: 2018-08-20-16-48-32
+.. nonce: _zx9lU
+.. section: Library
+
+Fix crash when an ``ABC``-derived class with invalid ``__subclasses__`` is
+passed as the second argument to :func:`issubclass()`. Patch by Alexey
+Izbyshev.
+
+..
+
+.. bpo: 34427
+.. date: 2018-08-20-13-53-10
+.. nonce: tMRQjl
+.. section: Library
+
+Fix infinite loop in ``a.extend(a)`` for ``MutableSequence`` subclasses.
+
+..
+
+.. bpo: 34412
+.. date: 2018-08-16-19-07-05
+.. nonce: NF5Jm2
+.. section: Library
+
+Make :func:`signal.strsignal` work on HP-UX. Patch by Michael Osipov.
+
+..
+
+.. bpo: 20849
+.. date: 2018-08-16-16-47-15
+.. nonce: YWJECC
+.. section: Library
+
+shutil.copytree now accepts a new ``dirs_exist_ok`` keyword argument. Patch
+by Josh Bronson.
+
+..
+
+.. bpo: 31715
+.. date: 2018-08-15-16-22-30
+.. nonce: Iw8jS8
+.. section: Library
+
+Associate ``.mjs`` file extension with ``application/javascript`` MIME Type.
+
+..
+
+.. bpo: 34384
+.. date: 2018-08-12-08-43-21
+.. nonce: yjofCv
+.. section: Library
+
+:func:`os.readlink` now accepts :term:`path-like <path-like object>` and
+:class:`bytes` objects on Windows.
+
+..
+
+.. bpo: 22602
+.. date: 2018-08-12-00-14-54
+.. nonce: ybG9K8
+.. section: Library
+
+The UTF-7 decoder now raises :exc:`UnicodeDecodeError` for ill-formed
+sequences starting with "+" (as specified in RFC 2152). Patch by Zackery
+Spytz.
+
+..
+
+.. bpo: 2122
+.. date: 2018-08-06-21-47-03
+.. nonce: GWdmrm
+.. section: Library
+
+The :meth:`mmap.flush() <mmap.mmap.flush>` method now returns ``None`` on
+success, raises an exception on error under all platforms.
+
+..
+
+.. bpo: 34341
+.. date: 2018-08-06-11-01-18
+.. nonce: E0b9p2
+.. section: Library
+
+Appending to the ZIP archive with the ZIP64 extension no longer grows the
+size of extra fields of existing entries.
+
+..
+
+.. bpo: 34333
+.. date: 2018-08-04-00-06-28
+.. nonce: 5NHG93
+.. section: Library
+
+Fix %-formatting in :meth:`pathlib.PurePath.with_suffix` when formatting an
+error message.
+
+..
+
+.. bpo: 18540
+.. date: 2018-08-02-21-28-38
+.. nonce: AryoYY
+.. section: Library
+
+The :class:`imaplib.IMAP4` and :class:`imaplib.IMAP4_SSL` classes now
+resolve to the local host IP correctly when the default value of *host*
+parameter (``''``) is used.
+
+..
+
+.. bpo: 26502
+.. date: 2018-08-02-20-39-32
+.. nonce: eGXr_k
+.. section: Library
+
+Implement ``traceback.FrameSummary.__len__()`` method to preserve
+compatibility with the old tuple API.
+
+..
+
+.. bpo: 34318
+.. date: 2018-08-02-14-43-42
+.. nonce: GneiXs
+.. section: Library
+
+:func:`~unittest.TestCase.assertRaises`,
+:func:`~unittest.TestCase.assertRaisesRegex`,
+:func:`~unittest.TestCase.assertWarns` and
+:func:`~unittest.TestCase.assertWarnsRegex` no longer success if the passed
+callable is None. They no longer ignore unknown keyword arguments in the
+context manager mode. A DeprecationWarning was raised in these cases since
+Python 3.5.
+
+..
+
+.. bpo: 9372
+.. date: 2018-08-01-21-26-17
+.. nonce: V8Ou3K
+.. section: Library
+
+Deprecate :meth:`__getitem__` methods of
+:class:`xml.dom.pulldom.DOMEventStream`, :class:`wsgiref.util.FileWrapper`
+and :class:`fileinput.FileInput`.
+
+..
+
+.. bpo: 33613
+.. date: 2018-07-31-23-33-06
+.. nonce: Cdnt0i
+.. section: Library
+
+Fix a race condition in ``multiprocessing.semaphore_tracker`` when the
+tracker receives SIGINT before it can register signal handlers for ignoring
+it.
+
+..
+
+.. bpo: 34248
+.. date: 2018-07-31-23-00-09
+.. nonce: 5U6wwc
+.. section: Library
+
+Report filename in the exception raised when the database file cannot be
+opened by :func:`dbm.gnu.open` and :func:`dbm.ndbm.open` due to OS-related
+error. Patch by Zsolt Cserna.
+
+..
+
+.. bpo: 33089
+.. date: 2018-07-29-21-53-15
+.. nonce: hxbp3g
+.. section: Library
+
+Add math.dist() to compute the Euclidean distance between two points.
+
+..
+
+.. bpo: 34246
+.. date: 2018-07-29-15-25-15
+.. nonce: xiKq-Q
+.. section: Library
+
+:meth:`smtplib.SMTP.send_message` no longer modifies the content of the
+*mail_options* argument. Patch by Pablo S. Blum de Aguiar.
+
+..
+
+.. bpo: 31047
+.. date: 2018-07-29-14-12-23
+.. nonce: FSarLs
+.. section: Library
+
+Fix ``ntpath.abspath`` for invalid paths on windows. Patch by Franz
+Woellert.
+
+..
+
+.. bpo: 32321
+.. date: 2018-07-29-13-50-32
+.. nonce: hDoNKC
+.. section: Library
+
+Add pure Python fallback for functools.reduce. Patch by Robert Wright.
+
+..
+
+.. bpo: 34270
+.. date: 2018-07-29-11-32-56
+.. nonce: aL6P-3
+.. section: Library
+
+The default asyncio task class now always has a name which can be get or set
+using two new methods (:meth:`~asyncio.Task.get_name()` and
+:meth:`~asyncio.Task.set_name`) and is visible in the :func:`repr` output.
+An initial name can also be set using the new ``name`` keyword argument to
+:func:`asyncio.create_task` or the
+:meth:`~asyncio.AbstractEventLoop.create_task` method of the event loop. If
+no initial name is set, the default Task implementation generates a name
+like ``Task-1`` using a monotonic counter.
+
+..
+
+.. bpo: 34263
+.. date: 2018-07-28-17-00-36
+.. nonce: zUfRsu
+.. section: Library
+
+asyncio's event loop will not pass timeouts longer than one day to
+epoll/select etc.
+
+..
+
+.. bpo: 34035
+.. date: 2018-07-28-15-00-31
+.. nonce: 75nW0H
+.. section: Library
+
+Fix several AttributeError in zipfile seek() methods. Patch by Mickaël
+Schoentgen.
+
+..
+
+.. bpo: 32215
+.. date: 2018-07-28-12-08-53
+.. nonce: EU68SY
+.. section: Library
+
+Fix performance regression in :mod:`sqlite3` when a DML statement appeared
+in a different line than the rest of the SQL query.
+
+..
+
+.. bpo: 34075
+.. date: 2018-07-28-11-49-21
+.. nonce: 9u1bO-
+.. section: Library
+
+Deprecate passing non-ThreadPoolExecutor instances to
+:meth:`AbstractEventLoop.set_default_executor`.
+
+..
+
+.. bpo: 34251
+.. date: 2018-07-28-11-47-10
+.. nonce: q3elQ6
+.. section: Library
+
+Restore ``msilib.Win64`` to preserve backwards compatibility since it's
+already used by :mod:`distutils`' ``bdist_msi`` command.
+
+..
+
+.. bpo: 19891
+.. date: 2018-07-26-08-45-49
+.. nonce: Y-3IiB
+.. section: Library
+
+Ignore errors caused by missing / non-writable homedir while writing history
+during exit of an interactive session. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 33089
+.. date: 2018-07-25-22-38-54
+.. nonce: C3CB7e
+.. section: Library
+
+Enhanced math.hypot() to support more than two dimensions.
+
+..
+
+.. bpo: 34228
+.. date: 2018-07-25-19-02-39
+.. nonce: 0Ibztw
+.. section: Library
+
+tracemalloc: PYTHONTRACEMALLOC=0 environment variable and -X tracemalloc=0
+command line option are now allowed to disable explicitly tracemalloc at
+startup.
+
+..
+
+.. bpo: 13041
+.. date: 2018-07-25-12-08-48
+.. nonce: lNmgDz
+.. section: Library
+
+Use :func:`shutil.get_terminal_size` to calculate the terminal width
+correctly in the ``argparse.HelpFormatter`` class. Initial patch by Zbyszek
+Jędrzejewski-Szmek.
+
+..
+
+.. bpo: 34213
+.. date: 2018-07-25-00-40-14
+.. nonce: O15MgP
+.. section: Library
+
+Allow frozen dataclasses to have a field named "object". Previously this
+conflicted with an internal use of "object".
+
+..
+
+.. bpo: 34052
+.. date: 2018-07-24-16-37-40
+.. nonce: VbbFAE
+.. section: Library
+
+:meth:`sqlite3.Connection.create_aggregate`,
+:meth:`sqlite3.Connection.create_function`,
+:meth:`sqlite3.Connection.set_authorizer`,
+:meth:`sqlite3.Connection.set_progress_handler` methods raises TypeError
+when unhashable objects are passed as callable. These methods now don't pass
+such objects to SQLite API. Previous behavior could lead to segfaults. Patch
+by Sergey Fedoseev.
+
+..
+
+.. bpo: 34197
+.. date: 2018-07-23-14-12-28
+.. nonce: 7yFSP5
+.. section: Library
+
+Attributes *skipinitialspace*, *doublequote* and *strict* of the *dialect*
+attribute of the :mod:`csv` reader are now :class:`bool` instances instead
+of integers 0 or 1.
+
+..
+
+.. bpo: 32788
+.. date: 2018-07-23-12-20-02
+.. nonce: R2jSiK
+.. section: Library
+
+Errors other than :exc:`TypeError` raised in methods ``__adapt__()`` and
+``__conform__()`` in the :mod:`sqlite3` module are now propagated to the
+user.
+
+..
+
+.. bpo: 21446
+.. date: 2018-07-22-09-05-01
+.. nonce: w6g7tn
+.. section: Library
+
+The :2to3fixer:`reload` fixer now uses :func:`importlib.reload` instead of
+deprecated :func:`imp.reload`.
+
+..
+
+.. bpo: 940286
+.. date: 2018-07-22-07-59-32
+.. nonce: NZTzyc
+.. section: Library
+
+pydoc's ``Helper.showtopic()`` method now prints the cross references of a
+topic correctly.
+
+..
+
+.. bpo: 34164
+.. date: 2018-07-20-18-06-00
+.. nonce: fNfT-q
+.. section: Library
+
+:func:`base64.b32decode` could raise UnboundLocalError or OverflowError for
+incorrect padding. Now it always raises :exc:`base64.Error` in these cases.
+
+..
+
+.. bpo: 33729
+.. date: 2018-07-20-09-11-05
+.. nonce: sO6iTb
+.. section: Library
+
+Fixed issues with arguments parsing in :mod:`hashlib`.
+
+..
+
+.. bpo: 34097
+.. date: 2018-07-13-13-42-10
+.. nonce: F5Dk5o
+.. section: Library
+
+ZipFile can zip files older than 1980-01-01 and newer than 2107-12-31 using
+a new ``strict_timestamps`` parameter at the cost of setting the timestamp
+to the limit.
+
+..
+
+.. bpo: 34108
+.. date: 2018-07-13-08-44-52
+.. nonce: RjobUC
+.. section: Library
+
+Remove extraneous CR in 2to3 refactor.
+
+..
+
+.. bpo: 34070
+.. date: 2018-07-11-20-51-20
+.. nonce: WpmFAu
+.. section: Library
+
+Make sure to only check if the handle is a tty, when opening a file with
+``buffering=-1``.
+
+..
+
+.. bpo: 27494
+.. date: 2018-07-11-10-03-21
+.. nonce: 04OWkW
+.. section: Library
+
+Reverted :issue:`27494`. 2to3 rejects now a trailing comma in generator
+expressions.
+
+..
+
+.. bpo: 33967
+.. date: 2018-07-08-18-49-41
+.. nonce: lhaAez
+.. section: Library
+
+functools.singledispatch now raises TypeError instead of IndexError when no
+positional arguments are passed.
+
+..
+
+.. bpo: 34041
+.. date: 2018-07-06-15-06-32
+.. nonce: 0zrKLh
+.. section: Library
+
+Add the parameter *deterministic* to the
+:meth:`sqlite3.Connection.create_function` method. Patch by Sergey Fedoseev.
+
+..
+
+.. bpo: 34056
+.. date: 2018-07-05-22-45-46
+.. nonce: 86isrU
+.. section: Library
+
+Ensure the loader shim created by ``imp.load_module`` always returns bytes
+from its ``get_data()`` function. This fixes using ``imp.load_module`` with
+:pep:`552` hash-based pycs.
+
+..
+
+.. bpo: 34054
+.. date: 2018-07-05-18-37-05
+.. nonce: nWRS6M
+.. section: Library
+
+The multiprocessing module now uses the monotonic clock
+:func:`time.monotonic` instead of the system clock :func:`time.time` to
+implement timeout.
+
+..
+
+.. bpo: 34043
+.. date: 2018-07-04-21-14-35
+.. nonce: 0YJNq9
+.. section: Library
+
+Optimize tarfile uncompress performance about 15% when gzip is used.
+
+..
+
+.. bpo: 34044
+.. date: 2018-07-04-17-14-26
+.. nonce: KWAu4y
+.. section: Library
+
+``subprocess.Popen`` now copies the *startupinfo* argument to leave it
+unchanged: it will modify the copy, so that the same ``STARTUPINFO`` object
+can be used multiple times.
+
+..
+
+.. bpo: 34010
+.. date: 2018-07-04-07-36-53
+.. nonce: VNDkde
+.. section: Library
+
+Fixed a performance regression for reading streams with tarfile. The
+buffered read should use a list, instead of appending to a bytes object.
+
+..
+
+.. bpo: 34019
+.. date: 2018-07-02-05-59-11
+.. nonce: ZXJIife
+.. section: Library
+
+webbrowser: Correct the arguments passed to Opera Browser when opening a new
+URL using the ``webbrowser`` module. Patch by Bumsik Kim.
+
+..
+
+.. bpo: 34003
+.. date: 2018-06-29-13-05-01
+.. nonce: Iu831h
+.. section: Library
+
+csv.DictReader now creates dicts instead of OrderedDicts. Patch by Michael
+Selik.
+
+..
+
+.. bpo: 33978
+.. date: 2018-06-29-12-23-34
+.. nonce: y4csIw
+.. section: Library
+
+Closed existing logging handlers before reconfiguration via fileConfig and
+dictConfig. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 14117
+.. date: 2018-06-29-00-31-36
+.. nonce: 3nvDuR
+.. section: Library
+
+Make minor tweaks to turtledemo. The 'wikipedia' example is now 'rosette',
+describing what it draws. The 'penrose' print output is reduced. The'1024'
+output of 'tree' is eliminated.
+
+..
+
+.. bpo: 33974
+.. date: 2018-06-28-14-56-44
+.. nonce: SA8nNP
+.. section: Library
+
+Fixed passing lists and tuples of strings containing special characters
+``"``, ``\``, ``{``, ``}`` and ``\n`` as options to :mod:`~tkinter.ttk`
+widgets.
+
+..
+
+.. bpo: 27500
+.. date: 2018-06-28-13-00-12
+.. nonce: _s1gZ5
+.. section: Library
+
+Fix getaddrinfo to resolve IPv6 addresses correctly.
+
+..
+
+.. bpo: 24567
+.. date: 2018-06-27-00-31-30
+.. nonce: FuePyY
+.. section: Library
+
+Improve random.choices() to handle subnormal input weights that could
+occasionally trigger an IndexError.
+
+..
+
+.. bpo: 33871
+.. date: 2018-06-26-19-03-56
+.. nonce: XhlrGU
+.. section: Library
+
+Fixed integer overflow in :func:`os.readv`, :func:`os.writev`,
+:func:`os.preadv` and :func:`os.pwritev` and in :func:`os.sendfile` with
+*headers* or *trailers* arguments (on BSD-based OSes and macOS).
+
+..
+
+.. bpo: 25007
+.. date: 2018-06-26-16-55-59
+.. nonce: 6LQWOF
+.. section: Library
+
+Add :func:`copy.copy` and :func:`copy.deepcopy` support to zlib compressors
+and decompressors. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 33929
+.. date: 2018-06-26-02-09-18
+.. nonce: OcCLah
+.. section: Library
+
+multiprocessing: Fix a race condition in Popen of
+multiprocessing.popen_spawn_win32. The child process now duplicates the read
+end of pipe instead of "stealing" it. Previously, the read end of pipe was
+"stolen" by the child process, but it leaked a handle if the child process
+had been terminated before it could steal the handle from the parent
+process.
+
+..
+
+.. bpo: 33899
+.. date: 2018-06-24-01-57-14
+.. nonce: IaOcAr
+.. section: Library
+
+Tokenize module now implicitly emits a NEWLINE when provided with input that
+does not have a trailing new line. This behavior now matches what the C
+tokenizer does internally. Contributed by Ammar Askar.
+
+..
+
+.. bpo: 33897
+.. date: 2018-06-23-18-09-28
+.. nonce: Hu0yvt
+.. section: Library
+
+Added a 'force' keyword argument to logging.basicConfig().
+
+..
+
+.. bpo: 33695
+.. date: 2018-06-23-12-47-37
+.. nonce: seRTxh
+.. section: Library
+
+:func:`shutil.copytree` uses :func:`os.scandir` function and all copy
+functions depending from it use cached :func:`os.stat` values. The speedup
+for copying a directory with 8000 files is around +9% on Linux, +20% on
+Windows and + 30% on a Windows SMB share. Also the number of :func:`os.stat`
+syscalls is reduced by 38% making :func:`shutil.copytree` especially faster
+on network filesystems. (Contributed by Giampaolo Rodola' in
+:issue:`33695`.)
+
+..
+
+.. bpo: 33916
+.. date: 2018-06-21-11-35-47
+.. nonce: cZgPCD
+.. section: Library
+
+bz2 and lzma: When Decompressor.__init__() is called twice, free the old
+lock to not leak memory.
+
+..
+
+.. bpo: 32568
+.. date: 2018-06-21-09-33-02
+.. nonce: f_meGY
+.. section: Library
+
+Make select.epoll() and its documentation consistent regarding *sizehint*
+and *flags*.
+
+..
+
+.. bpo: 33833
+.. date: 2018-06-17-11-46-20
+.. nonce: RnEqvM
+.. section: Library
+
+Fixed bug in asyncio where ProactorSocketTransport logs AssertionError if
+force closed during write.
+
+..
+
+.. bpo: 33663
+.. date: 2018-06-17-10-48-03
+.. nonce: sUuGmq
+.. section: Library
+
+Convert content length to string before putting to header.
+
+..
+
+.. bpo: 33721
+.. date: 2018-06-14-17-53-30
+.. nonce: 8i9_9A
+.. section: Library
+
+:mod:`os.path` functions that return a boolean result like
+:func:`~os.path.exists`, :func:`~os.path.lexists`, :func:`~os.path.isdir`,
+:func:`~os.path.isfile`, :func:`~os.path.islink`, and
+:func:`~os.path.ismount`, and :mod:`pathlib.Path` methods that return a
+boolean result like :meth:`~pathlib.Path.exists()`,
+:meth:`~pathlib.Path.is_dir()`, :meth:`~pathlib.Path.is_file()`,
+:meth:`~pathlib.Path.is_mount()`, :meth:`~pathlib.Path.is_symlink()`,
+:meth:`~pathlib.Path.is_block_device()`,
+:meth:`~pathlib.Path.is_char_device()`, :meth:`~pathlib.Path.is_fifo()`,
+:meth:`~pathlib.Path.is_socket()` now return ``False`` instead of raising
+:exc:`ValueError` or its subclasses :exc:`UnicodeEncodeError` and
+:exc:`UnicodeDecodeError` for paths that contain characters or bytes
+unrepresentable at the OS level.
+
+..
+
+.. bpo: 26544
+.. date: 2018-06-13-20-33-29
+.. nonce: hQ1oMt
+.. section: Library
+
+Fixed implementation of :func:`platform.libc_ver`. It almost always returned
+version '2.9' for glibc.
+
+..
+
+.. bpo: 33843
+.. date: 2018-06-12-18-59-16
+.. nonce: qVAK8g
+.. section: Library
+
+Remove deprecated ``cgi.escape``, ``cgi.parse_qs`` and ``cgi.parse_qsl``.
+
+..
+
+.. bpo: 33842
+.. date: 2018-06-12-18-34-54
+.. nonce: RZXSGu
+.. section: Library
+
+Remove ``tarfile.filemode`` which is deprecated since Python 3.3.
+
+..
+
+.. bpo: 30167
+.. date: 2018-06-10-19-29-17
+.. nonce: G5EgC5
+.. section: Library
+
+Prevent site.main() exception if PYTHONSTARTUP is set. Patch by Steve Weber.
+
+..
+
+.. bpo: 33805
+.. date: 2018-06-10-15-14-17
+.. nonce: 5LAz5a
+.. section: Library
+
+Improve error message of dataclasses.replace() when an InitVar is not
+specified
+
+..
+
+.. bpo: 33687
+.. date: 2018-06-10-14-08-52
+.. nonce: 1zZdnA
+.. section: Library
+
+Fix the call to ``os.chmod()`` for ``uu.decode()`` if a mode is given or
+decoded. Patch by Timo Furrer.
+
+..
+
+.. bpo: 33812
+.. date: 2018-06-10-13-26-02
+.. nonce: frGAOr
+.. section: Library
+
+Datetime instance d with non-None tzinfo, but with d.tzinfo.utcoffset(d)
+returning None is now treated as naive by the astimezone() method.
+
+..
+
+.. bpo: 32108
+.. date: 2018-06-10-12-15-26
+.. nonce: iEkvh0
+.. section: Library
+
+In configparser, don't clear section when it is assigned to itself.
+
+..
+
+.. bpo: 27397
+.. date: 2018-06-10-09-43-54
+.. nonce: 0_fFQR
+.. section: Library
+
+Make email module properly handle invalid-length base64 strings.
+
+..
+
+.. bpo: 33578
+.. date: 2018-06-08-23-55-34
+.. nonce: 7oSsjG
+.. section: Library
+
+Implement multibyte encoder/decoder state methods
+
+..
+
+.. bpo: 30805
+.. date: 2018-06-08-17-34-16
+.. nonce: 3qCWa0
+.. section: Library
+
+Avoid race condition with debug logging
+
+..
+
+.. bpo: 33476
+.. date: 2018-06-08-00-29-40
+.. nonce: R0Bhlj
+.. section: Library
+
+Fix _header_value_parser.py when address group is missing final ';'.
+Contributed by Enrique Perez-Terron
+
+..
+
+.. bpo: 33694
+.. date: 2018-06-07-23-51-00
+.. nonce: F1zIR1
+.. section: Library
+
+asyncio: Fix a race condition causing data loss on
+pause_reading()/resume_reading() when using the ProactorEventLoop.
+
+..
+
+.. bpo: 32493
+.. date: 2018-06-07-18-55-35
+.. nonce: 1Bte62
+.. section: Library
+
+Correct test for ``uuid_enc_be`` availability in ``configure.ac``. Patch by
+Michael Felt.
+
+..
+
+.. bpo: 33792
+.. date: 2018-06-07-12-38-12
+.. nonce: 3aKG7u
+.. section: Library
+
+Add asyncio.WindowsSelectorEventLoopPolicy and
+asyncio.WindowsProactorEventLoopPolicy.
+
+..
+
+.. bpo: 33274
+.. date: 2018-06-06-22-01-33
+.. nonce: teYqv8
+.. section: Library
+
+W3C DOM Level 1 specifies return value of Element.removeAttributeNode() as
+"The Attr node that was removed." xml.dom.minidom now complies with this
+requirement.
+
+..
+
+.. bpo: 33778
+.. date: 2018-06-05-20-22-30
+.. nonce: _tSAS6
+.. section: Library
+
+Update ``unicodedata``'s database to Unicode version 11.0.0.
+
+..
+
+.. bpo: 33165
+.. date: 2018-06-05-12-43-25
+.. nonce: 9TIsVf
+.. section: Library
+
+Added a stacklevel parameter to logging calls to allow use of wrapper/helper
+functions for logging APIs.
+
+..
+
+.. bpo: 33770
+.. date: 2018-06-05-11-29-26
+.. nonce: oBhxxw
+.. section: Library
+
+improve base64 exception message for encoded inputs of invalid length
+
+..
+
+.. bpo: 33769
+.. date: 2018-06-04-13-46-39
+.. nonce: D_pxYz
+.. section: Library
+
+asyncio/start_tls: Fix error message; cancel callbacks in case of an
+unhandled error; mark SSLTransport as closed if it is aborted.
+
+..
+
+.. bpo: 33767
+.. date: 2018-06-03-22-41-59
+.. nonce: 2e82g3
+.. section: Library
+
+The concatenation (``+``) and repetition (``*``) sequence operations now
+raise :exc:`TypeError` instead of :exc:`SystemError` when performed on
+:class:`mmap.mmap` objects. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 33734
+.. date: 2018-06-01-10-55-48
+.. nonce: x1W9x0
+.. section: Library
+
+asyncio/ssl: Fix AttributeError, increase default handshake timeout
+
+..
+
+.. bpo: 31014
+.. date: 2018-05-31-06-48-55
+.. nonce: SNY681
+.. section: Library
+
+Fixed creating a controller for :mod:`webbrowser` when a user specifies a
+path to an entry in the BROWSER environment variable. Based on patch by
+John Still.
+
+..
+
+.. bpo: 2504
+.. date: 2018-05-30-16-00-06
+.. nonce: BynUvU
+.. section: Library
+
+Add gettext.pgettext() and variants.
+
+..
+
+.. bpo: 33197
+.. date: 2018-05-30-00-26-05
+.. nonce: XkE2kL
+.. section: Library
+
+Add description property for _ParameterKind
+
+..
+
+.. bpo: 32751
+.. date: 2018-05-29-15-32-18
+.. nonce: oBTqr7
+.. section: Library
+
+When cancelling the task due to a timeout, :meth:`asyncio.wait_for` will now
+wait until the cancellation is complete.
+
+..
+
+.. bpo: 32684
+.. date: 2018-05-29-12-51-18
+.. nonce: ZEIism
+.. section: Library
+
+Fix gather to propagate cancellation of itself even with return_exceptions.
+
+..
+
+.. bpo: 33654
+.. date: 2018-05-29-01-13-39
+.. nonce: sa81Si
+.. section: Library
+
+Support protocol type switching in SSLTransport.set_protocol().
+
+..
+
+.. bpo: 33674
+.. date: 2018-05-29-00-37-56
+.. nonce: 2IkGhL
+.. section: Library
+
+Pause the transport as early as possible to further reduce the risk of
+data_received() being called before connection_made().
+
+..
+
+.. bpo: 33671
+.. date: 2018-05-28-23-25-17
+.. nonce: GIdKKi
+.. section: Library
+
+:func:`shutil.copyfile`, :func:`shutil.copy`, :func:`shutil.copy2`,
+:func:`shutil.copytree` and :func:`shutil.move` use platform-specific
+fast-copy syscalls on Linux and macOS in order to copy the file
+more efficiently. On Windows :func:`shutil.copyfile` uses a bigger default
+buffer size (1 MiB instead of 16 KiB) and a :func:`memoryview`-based variant
+of :func:`shutil.copyfileobj` is used. The speedup for copying a 512MiB file
+is about +26% on Linux, +50% on macOS and +40% on Windows. Also, much less
+CPU cycles are consumed. (Contributed by Giampaolo Rodola' in
+:issue:`25427`.)
+
+..
+
+.. bpo: 33674
+.. date: 2018-05-28-22-49-59
+.. nonce: 6LFFj7
+.. section: Library
+
+Fix a race condition in SSLProtocol.connection_made() of asyncio.sslproto:
+start immediately the handshake instead of using call_soon(). Previously,
+data_received() could be called before the handshake started, causing the
+handshake to hang or fail.
+
+..
+
+.. bpo: 31647
+.. date: 2018-05-28-18-40-26
+.. nonce: s4Fad3
+.. section: Library
+
+Fixed bug where calling write_eof() on a _SelectorSocketTransport after it's
+already closed raises AttributeError.
+
+..
+
+.. bpo: 32610
+.. date: 2018-05-28-16-40-32
+.. nonce: KvUAsL
+.. section: Library
+
+Make asyncio.all_tasks() return only pending tasks.
+
+..
+
+.. bpo: 32410
+.. date: 2018-05-28-16-19-35
+.. nonce: Z1DZaF
+.. section: Library
+
+Avoid blocking on file IO in sendfile fallback code
+
+..
+
+.. bpo: 33469
+.. date: 2018-05-28-15-55-12
+.. nonce: hmXBpY
+.. section: Library
+
+Fix RuntimeError after closing loop that used run_in_executor
+
+..
+
+.. bpo: 33672
+.. date: 2018-05-28-12-29-54
+.. nonce: GM_Xm_
+.. section: Library
+
+Fix Task.__repr__ crash with Cython's bogus coroutines
+
+..
+
+.. bpo: 33654
+.. date: 2018-05-26-13-09-34
+.. nonce: IbYWxA
+.. section: Library
+
+Fix transport.set_protocol() to support switching between asyncio.Protocol
+and asyncio.BufferedProtocol. Fix loop.start_tls() to work with
+asyncio.BufferedProtocols.
+
+..
+
+.. bpo: 33652
+.. date: 2018-05-26-10-13-59
+.. nonce: humFJ1
+.. section: Library
+
+Pickles of type variables and subscripted generics are now future-proof and
+compatible with older Python versions.
+
+..
+
+.. bpo: 32493
+.. date: 2018-05-24-17-41-36
+.. nonce: 5tAoAu
+.. section: Library
+
+Fixed :func:`uuid.uuid1` on FreeBSD.
+
+..
+
+.. bpo: 33238
+.. date: 2018-05-24-09-15-52
+.. nonce: ooDfoo
+.. section: Library
+
+Add ``InvalidStateError`` to :mod:`concurrent.futures`.
+``Future.set_result`` and ``Future.set_exception`` now raise
+``InvalidStateError`` if the futures are not pending or running. Patch by
+Jason Haydaman.
+
+..
+
+.. bpo: 33618
+.. date: 2018-05-23-20-14-34
+.. nonce: xU39lr
+.. section: Library
+
+Finalize and document preliminary and experimental TLS 1.3 support with
+OpenSSL 1.1.1
+
+..
+
+.. bpo: 33625
+.. date: 2018-05-23-17-07-54
+.. nonce: nzQgD8
+.. section: Library
+
+Release GIL on `grp.getgrnam`, `grp.getgrgid`, `pwd.getpwnam` and
+`pwd.getpwuid` if reentrant variants of these functions are available. Patch
+by William Grzybowski.
+
+..
+
+.. bpo: 33623
+.. date: 2018-05-23-14-58-05
+.. nonce: wAw1cF
+.. section: Library
+
+Fix possible SIGSGV when asyncio.Future is created in __del__
+
+..
+
+.. bpo: 11874
+.. date: 2018-05-23-00-26-27
+.. nonce: glK5iP
+.. section: Library
+
+Use a better regex when breaking usage into wrappable parts. Avoids bogus
+assertion errors from custom metavar strings.
+
+..
+
+.. bpo: 30877
+.. date: 2018-05-22-13-05-12
+.. nonce: JZEGjI
+.. section: Library
+
+Fixed a bug in the Python implementation of the JSON decoder that prevented
+the cache of parsed strings from clearing after finishing the decoding.
+Based on patch by c-fos.
+
+..
+
+.. bpo: 33604
+.. date: 2018-05-22-11-55-33
+.. nonce: 6V4JcO
+.. section: Library
+
+Remove HMAC default to md5 marked for removal in 3.8 (removal originally
+planned in 3.6, bump to 3.8 in PR 7062).
+
+..
+
+.. bpo: 33582
+.. date: 2018-05-19-15-58-14
+.. nonce: qBZPmF
+.. section: Library
+
+Emit a deprecation warning for inspect.formatargspec
+
+..
+
+.. bpo: 21145
+.. date: 2018-05-18-22-52-34
+.. nonce: AiQMDx
+.. section: Library
+
+Add ``functools.cached_property`` decorator, for computed properties cached
+for the life of the instance.
+
+..
+
+.. bpo: 33570
+.. date: 2018-05-18-21-50-47
+.. nonce: 7CZy4t
+.. section: Library
+
+Change TLS 1.3 cipher suite settings for compatibility with OpenSSL
+1.1.1-pre6 and newer. OpenSSL 1.1.1 will have TLS 1.3 ciphers enabled by
+default.
+
+..
+
+.. bpo: 28556
+.. date: 2018-05-17-22-53-08
+.. nonce: C6Hnd1
+.. section: Library
+
+Do not simplify arguments to `typing.Union`. Now `Union[Manager, Employee]`
+is not simplified to `Employee` at runtime. Such simplification previously
+caused several bugs and limited possibilities for introspection.
+
+..
+
+.. bpo: 12486
+.. date: 2018-05-17-22-14-58
+.. nonce: HBeh62
+.. section: Library
+
+:func:`tokenize.generate_tokens` is now documented as a public API to
+tokenize unicode strings. It was previously present but undocumented.
+
+..
+
+.. bpo: 33540
+.. date: 2018-05-16-18-10-38
+.. nonce: wy9LRV
+.. section: Library
+
+Add a new ``block_on_close`` class attribute to ``ForkingMixIn`` and
+``ThreadingMixIn`` classes of :mod:`socketserver`.
+
+..
+
+.. bpo: 33548
+.. date: 2018-05-16-17-05-48
+.. nonce: xWslmx
+.. section: Library
+
+tempfile._candidate_tempdir_list should consider common TEMP locations
+
+..
+
+.. bpo: 33109
+.. date: 2018-05-16-14-57-58
+.. nonce: nPLL_S
+.. section: Library
+
+argparse subparsers are once again not required by default, reverting the
+change in behavior introduced by bpo-26510 in 3.7.0a2.
+
+..
+
+.. bpo: 33541
+.. date: 2018-05-16-12-32-48
+.. nonce: kQORPE
+.. section: Library
+
+Remove unused private method ``_strptime.LocaleTime.__pad`` (a.k.a.
+``_LocaleTime__pad``).
+
+..
+
+.. bpo: 33536
+.. date: 2018-05-16-10-07-40
+.. nonce: _s0TE8
+.. section: Library
+
+dataclasses.make_dataclass now checks for invalid field names and duplicate
+fields. Also, added a check for invalid field specifications.
+
+..
+
+.. bpo: 33542
+.. date: 2018-05-16-09-30-27
+.. nonce: idNAcs
+.. section: Library
+
+Prevent ``uuid.get_node`` from using a DUID instead of a MAC on Windows.
+Patch by Zvi Effron
+
+..
+
+.. bpo: 26819
+.. date: 2018-05-16-05-24-43
+.. nonce: taxbVT
+.. section: Library
+
+Fix race condition with `ReadTransport.resume_reading` in Windows proactor
+event loop.
+
+..
+
+.. bpo: 0
+.. date: 2018-05-15-18-02-03
+.. nonce: pj2Mbb
+.. section: Library
+
+Fix failure in `typing.get_type_hints()` when ClassVar was provided as a
+string forward reference.
+
+..
+
+.. bpo: 33516
+.. date: 2018-05-15-17-06-42
+.. nonce: ZzARe4
+.. section: Library
+
+:class:`unittest.mock.MagicMock` now supports the ``__round__`` magic
+method.
+
+..
+
+.. bpo: 28612
+.. date: 2018-05-15-15-03-48
+.. nonce: E9dz39
+.. section: Library
+
+Added support for Site Maps to urllib's ``RobotFileParser`` as
+:meth:`RobotFileParser.site_maps()
+<urllib.robotparser.RobotFileParser.site_maps>`. Patch by Lady Red, based on
+patch by Peter Wirtz.
+
+..
+
+.. bpo: 28167
+.. date: 2018-05-15-13-49-13
+.. nonce: p4RdQt
+.. section: Library
+
+Remove platform.linux_distribution, which was deprecated since 3.5.
+
+..
+
+.. bpo: 33504
+.. date: 2018-05-15-12-11-13
+.. nonce: czsHFg
+.. section: Library
+
+Switch the default dictionary implementation for :mod:`configparser` from
+:class:`collections.OrderedDict` to the standard :class:`dict` type.
+
+..
+
+.. bpo: 33505
+.. date: 2018-05-14-18-05-35
+.. nonce: L8pAyt
+.. section: Library
+
+Optimize asyncio.ensure_future() by reordering if checks: 1.17x faster.
+
+..
+
+.. bpo: 33497
+.. date: 2018-05-14-17-49-34
+.. nonce: wWT6XM
+.. section: Library
+
+Add errors param to cgi.parse_multipart and make an encoding in FieldStorage
+use the given errors (needed for Twisted). Patch by Amber Brown.
+
+..
+
+.. bpo: 29235
+.. date: 2018-05-14-15-01-55
+.. nonce: 47Fzwt
+.. section: Library
+
+The :class:`cProfile.Profile` class can now be used as a context manager.
+Patch by Scott Sanderson.
+
+..
+
+.. bpo: 33495
+.. date: 2018-05-14-10-29-03
+.. nonce: TeGTQJ
+.. section: Library
+
+Change dataclasses.Fields repr to use the repr of each of its members,
+instead of str. This makes it more clear what each field actually
+represents. This is especially true for the 'type' member.
+
+..
+
+.. bpo: 26103
+.. date: 2018-05-14-09-07-14
+.. nonce: _zU8E2
+.. section: Library
+
+Correct ``inspect.isdatadescriptor`` to look for ``__set__`` or
+``__delete__``. Patch by Aaron Hall.
+
+..
+
+.. bpo: 29209
+.. date: 2018-05-12-13-06-41
+.. nonce: h5RxYy
+.. section: Library
+
+Removed the ``doctype()`` method and the *html* parameter of the constructor
+of :class:`~xml.etree.ElementTree.XMLParser`. The ``doctype()`` method
+defined in a subclass will no longer be called. Deprecated methods
+``getchildren()`` and ``getiterator()`` in the :mod:`~xml.etree.ElementTree`
+module emit now a :exc:`DeprecationWarning` instead of
+:exc:`PendingDeprecationWarning`.
+
+..
+
+.. bpo: 33453
+.. date: 2018-05-12-06-01-02
+.. nonce: Fj-jMD
+.. section: Library
+
+Fix dataclasses to work if using literal string type annotations or if using
+PEP 563 "Postponed Evaluation of Annotations". Only specific string
+prefixes are detected for both ClassVar ("ClassVar" and "typing.ClassVar")
+and InitVar ("InitVar" and "dataclasses.InitVar").
+
+..
+
+.. bpo: 28556
+.. date: 2018-05-08-16-43-42
+.. nonce: _xr5mp
+.. section: Library
+
+Minor fixes in typing module: add annotations to ``NamedTuple.__new__``,
+pass ``*args`` and ``**kwds`` in ``Generic.__new__``. Original PRs by
+Paulius Šarka and Chad Dombrova.
+
+..
+
+.. bpo: 33365
+.. date: 2018-05-08-15-01-10
+.. nonce: SicsAd
+.. section: Library
+
+Print the header values besides the header keys instead just the header keys
+if *debuglevel* is set to >0 in :mod:`http.client`. Patch by Marco Strigl.
+
+..
+
+.. bpo: 20087
+.. date: 2018-05-05-18-02-24
+.. nonce: lJrvXL
+.. section: Library
+
+Updated alias mapping with glibc 2.27 supported locales.
+
+..
+
+.. bpo: 33422
+.. date: 2018-05-05-09-53-05
+.. nonce: 4FtQ0q
+.. section: Library
+
+Fix trailing quotation marks getting deleted when looking up byte/string
+literals on pydoc. Patch by Andrés Delfino.
+
+..
+
+.. bpo: 28167
+.. date: 2018-05-02-07-26-29
+.. nonce: 7FwDfN
+.. section: Library
+
+The function ``platform.linux_distribution`` and ``platform.dist`` now
+trigger a ``DeprecationWarning`` and have been marked for removal in Python
+3.8
+
+..
+
+.. bpo: 33281
+.. date: 2018-05-01-22-35-50
+.. nonce: d4jOt4
+.. section: Library
+
+Fix ctypes.util.find_library regression on macOS.
+
+..
+
+.. bpo: 33311
+.. date: 2018-05-01-22-33-14
+.. nonce: 8YPB-k
+.. section: Library
+
+Text and html output generated by cgitb does not display parentheses if the
+current call is done directly in the module. Patch by Stéphane Blondon.
+
+..
+
+.. bpo: 27300
+.. date: 2018-05-01-02-24-44
+.. nonce: LdIXvK
+.. section: Library
+
+The file classes in *tempfile* now accept an *errors* parameter that
+complements the already existing *encoding*. Patch by Stephan Hohe.
+
+..
+
+.. bpo: 32933
+.. date: 2018-04-30-22-43-31
+.. nonce: M3iI_y
+.. section: Library
+
+:func:`unittest.mock.mock_open` now supports iteration over the file
+contents. Patch by Tony Flury.
+
+..
+
+.. bpo: 33217
+.. date: 2018-04-30-13-29-47
+.. nonce: TENDzd
+.. section: Library
+
+Raise :exc:`TypeError` when looking up non-Enum objects in Enum classes and
+Enum members.
+
+..
+
+.. bpo: 33197
+.. date: 2018-04-29-23-56-20
+.. nonce: dgRLqr
+.. section: Library
+
+Update error message when constructing invalid inspect.Parameters Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 33383
+.. date: 2018-04-29-11-15-38
+.. nonce: g32YWn
+.. section: Library
+
+Fixed crash in the get() method of the :mod:`dbm.ndbm` database object when
+it is called with a single argument.
+
+..
+
+.. bpo: 33375
+.. date: 2018-04-28-08-11-35
+.. nonce: Dbq1fz
+.. section: Library
+
+The warnings module now finds the Python file associated with a warning from
+the code object, rather than the frame's global namespace. This is
+consistent with how tracebacks and pdb find filenames, and should work
+better for dynamically executed code.
+
+..
+
+.. bpo: 33336
+.. date: 2018-04-27-22-18-38
+.. nonce: T8rxn0
+.. section: Library
+
+``imaplib`` now allows ``MOVE`` command in ``IMAP4.uid()`` (RFC 6851: IMAP
+MOVE Extension) and potentially as a name of supported method of ``IMAP4``
+object.
+
+..
+
+.. bpo: 32455
+.. date: 2018-04-26-13-31-10
+.. nonce: KPWg3K
+.. section: Library
+
+Added *jump* parameter to :func:`dis.stack_effect`.
+
+..
+
+.. bpo: 27485
+.. date: 2018-04-25-14-05-21
+.. nonce: nclVSU
+.. section: Library
+
+Rename and deprecate undocumented functions in :func:`urllib.parse`.
+
+..
+
+.. bpo: 33332
+.. date: 2018-04-23-21-41-30
+.. nonce: Y6OZ8Z
+.. section: Library
+
+Add ``signal.valid_signals()`` to expose the POSIX sigfillset()
+functionality.
+
+..
+
+.. bpo: 33251
+.. date: 2018-04-23-18-25-36
+.. nonce: C_K-J9
+.. section: Library
+
+`ConfigParser.items()` was fixed so that key-value pairs passed in via
+`vars` are not included in the resulting output.
+
+..
+
+.. bpo: 33329
+.. date: 2018-04-23-13-21-39
+.. nonce: lQ-Eod
+.. section: Library
+
+Fix multiprocessing regression on newer glibcs
+
+..
+
+.. bpo: 33334
+.. date: 2018-04-22-20-13-21
+.. nonce: 19UMOC
+.. section: Library
+
+:func:`dis.stack_effect` now supports all defined opcodes including NOP and
+EXTENDED_ARG.
+
+..
+
+.. bpo: 991266
+.. date: 2018-04-21-00-24-08
+.. nonce: h93TP_
+.. section: Library
+
+Fix quoting of the ``Comment`` attribute of
+:class:`http.cookies.SimpleCookie`.
+
+..
+
+.. bpo: 33131
+.. date: 2018-04-20-10-43-17
+.. nonce: L2E977
+.. section: Library
+
+Upgrade bundled version of pip to 10.0.1.
+
+..
+
+.. bpo: 33308
+.. date: 2018-04-18-19-12-25
+.. nonce: fW75xi
+.. section: Library
+
+Fixed a crash in the :mod:`parser` module when converting an ST object to a
+tree of tuples or lists with ``line_info=False`` and ``col_info=True``.
+
+..
+
+.. bpo: 23403
+.. date: 2018-04-16-16-21-09
+.. nonce: rxR1Q_
+.. section: Library
+
+lib2to3 now uses pickle protocol 4 for pre-computed grammars.
+
+..
+
+.. bpo: 33266
+.. date: 2018-04-16-15-59-21
+.. nonce: w2PAm-
+.. section: Library
+
+lib2to3 now recognizes ``rf'...'`` strings.
+
+..
+
+.. bpo: 11594
+.. date: 2018-04-16-08-42-03
+.. nonce: QLo4vv
+.. section: Library
+
+Ensure line-endings are respected when using lib2to3.
+
+..
+
+.. bpo: 33254
+.. date: 2018-04-13-15-14-47
+.. nonce: DS4KFK
+.. section: Library
+
+Have :func:`importlib.resources.contents` and
+:meth:`importlib.abc.ResourceReader.contents` return an :term:`iterable`
+instead of an :term:`iterator`.
+
+..
+
+.. bpo: 33265
+.. date: 2018-04-13-08-12-50
+.. nonce: KPQRk0
+.. section: Library
+
+``contextlib.ExitStack`` and ``contextlib.AsyncExitStack`` now use a method
+instead of a wrapper function for exit callbacks.
+
+..
+
+.. bpo: 33263
+.. date: 2018-04-11-20-29-19
+.. nonce: B56Hc1
+.. section: Library
+
+Fix FD leak in `_SelectorSocketTransport` Patch by Vlad Starostin.
+
+..
+
+.. bpo: 33256
+.. date: 2018-04-10-20-57-14
+.. nonce: ndHkqu
+.. section: Library
+
+Fix display of ``<module>`` call in the html produced by ``cgitb.html()``.
+Patch by Stéphane Blondon.
+
+..
+
+.. bpo: 33144
+.. date: 2018-04-10-14-50-30
+.. nonce: iZr4et
+.. section: Library
+
+``random.Random()`` and its subclassing mechanism got optimized to check
+only once at class/subclass instantiation time whether its ``getrandbits()``
+method can be relied on by other methods, including ``randrange()``, for the
+generation of arbitrarily large random integers. Patch by Wolfgang Maier.
+
+..
+
+.. bpo: 33185
+.. date: 2018-04-08-22-54-07
+.. nonce: Id-Ba9
+.. section: Library
+
+Fixed regression when running pydoc with the :option:`-m` switch. (The
+regression was introduced in 3.7.0b3 by the resolution of :issue:`33053`)
+
+This fix also changed pydoc to add ``os.getcwd()`` to :data:`sys.path` when
+necessary, rather than adding ``"."``.
+
+..
+
+.. bpo: 29613
+.. date: 2018-04-07-13-49-39
+.. nonce: r6FDnB
+.. section: Library
+
+Added support for the ``SameSite`` cookie flag to the ``http.cookies``
+module.
+
+..
+
+.. bpo: 33169
+.. date: 2018-04-06-14-56-26
+.. nonce: ByhDqb
+.. section: Library
+
+Delete entries of ``None`` in :data:`sys.path_importer_cache` when
+:meth:`importlib.machinery.invalidate_caches` is called.
+
+..
+
+.. bpo: 33203
+.. date: 2018-04-05-11-09-45
+.. nonce: Hje9Py
+.. section: Library
+
+``random.Random.choice()`` now raises ``IndexError`` for empty sequences
+consistently even when called from subclasses without a ``getrandbits()``
+implementation.
+
+..
+
+.. bpo: 33224
+.. date: 2018-04-04-23-41-30
+.. nonce: pyR0jB
+.. section: Library
+
+Update difflib.mdiff() for :pep:`479`. Convert an uncaught StopIteration in
+a generator into a return-statement.
+
+..
+
+.. bpo: 33209
+.. date: 2018-04-03-10-37-13
+.. nonce: 9sGWE_
+.. section: Library
+
+End framing at the end of C implementation of :func:`pickle.Pickler.dump`.
+
+..
+
+.. bpo: 32861
+.. date: 2018-04-02-20-44-54
+.. nonce: HeBjzN
+.. section: Library
+
+The urllib.robotparser's ``__str__`` representation now includes wildcard
+entries and the "Crawl-delay" and "Request-rate" fields. Also removes extra
+newlines that were being appended to the end of the string. Patch by Michael
+Lazar.
+
+..
+
+.. bpo: 23403
+.. date: 2018-04-02-16-10-12
+.. nonce: KG7ADV
+.. section: Library
+
+``DEFAULT_PROTOCOL`` in :mod:`pickle` was bumped to 4. Protocol 4 is
+described in :pep:`3154` and available since Python 3.4. It offers better
+performance and smaller size compared to protocol 3 introduced in Python
+3.0.
+
+..
+
+.. bpo: 20104
+.. date: 2018-04-01-19-21-04
+.. nonce: -AKcGa
+.. section: Library
+
+Improved error handling and fixed a reference leak in
+:func:`os.posix_spawn()`.
+
+..
+
+.. bpo: 33106
+.. date: 2018-03-30-01-20-35
+.. nonce: zncfvW
+.. section: Library
+
+Deleting a key from a read-only dbm database raises module specific error
+instead of KeyError.
+
+..
+
+.. bpo: 33175
+.. date: 2018-03-29-04-32-25
+.. nonce: _zs1yM
+.. section: Library
+
+In dataclasses, Field.__set_name__ now looks up the __set_name__ special
+method on the class, not the instance, of the default value.
+
+..
+
+.. bpo: 32380
+.. date: 2018-03-29-03-09-22
+.. nonce: NhuGig
+.. section: Library
+
+Create functools.singledispatchmethod to support generic single dispatch on
+descriptors and methods.
+
+..
+
+.. bpo: 33141
+.. date: 2018-03-26-12-33-13
+.. nonce: 23wlxf
+.. section: Library
+
+Have Field objects pass through __set_name__ to their default values, if
+they have their own __set_name__.
+
+..
+
+.. bpo: 33096
+.. date: 2018-03-25-13-18-16
+.. nonce: ofdbe7
+.. section: Library
+
+Allow ttk.Treeview.insert to insert iid that has a false boolean value. Note
+iid=0 and iid=False would be same. Patch by Garvit Khatri.
+
+..
+
+.. bpo: 32873
+.. date: 2018-03-24-19-54-48
+.. nonce: cHyoAm
+.. section: Library
+
+Treat type variables and special typing forms as immutable by copy and
+pickle. This fixes several minor issues and inconsistencies, and improves
+backwards compatibility with Python 3.6.
+
+..
+
+.. bpo: 33134
+.. date: 2018-03-24-19-34-26
+.. nonce: hbVeIX
+.. section: Library
+
+When computing dataclass's __hash__, use the lookup table to contain the
+function which returns the __hash__ value. This is an improvement over
+looking up a string, and then testing that string to see what to do.
+
+..
+
+.. bpo: 33127
+.. date: 2018-03-24-15-08-24
+.. nonce: olJmHv
+.. section: Library
+
+The ssl module now compiles with LibreSSL 2.7.1.
+
+..
+
+.. bpo: 32505
+.. date: 2018-03-22-16-05-56
+.. nonce: YK1N8v
+.. section: Library
+
+Raise TypeError if a member variable of a dataclass is of type Field, but
+doesn't have a type annotation.
+
+..
+
+.. bpo: 33078
+.. date: 2018-03-21-17-59-39
+.. nonce: PQOniT
+.. section: Library
+
+Fix the failure on OSX caused by the tests relying on sem_getvalue
+
+..
+
+.. bpo: 33116
+.. date: 2018-03-21-16-52-26
+.. nonce: Tvzerj
+.. section: Library
+
+Add 'Field' to dataclasses.__all__.
+
+..
+
+.. bpo: 32896
+.. date: 2018-03-20-20-53-21
+.. nonce: ewW3Ln
+.. section: Library
+
+Fix an error where subclassing a dataclass with a field that uses a
+default_factory would generate an incorrect class.
+
+..
+
+.. bpo: 33100
+.. date: 2018-03-19-20-47-00
+.. nonce: chyIO4
+.. section: Library
+
+Dataclasses: If a field has a default value that's a MemberDescriptorType,
+then it's from that field being in __slots__, not an actual default value.
+
+..
+
+.. bpo: 32953
+.. date: 2018-03-18-17-38-48
+.. nonce: t8WAWN
+.. section: Library
+
+If a non-dataclass inherits from a frozen dataclass, allow attributes to be
+added to the derived class. Only attributes from the frozen dataclass
+cannot be assigned to. Require all dataclasses in a hierarchy to be either
+all frozen or all non-frozen.
+
+..
+
+.. bpo: 33097
+.. date: 2018-03-18-16-48-23
+.. nonce: Yl4gI2
+.. section: Library
+
+Raise RuntimeError when ``executor.submit`` is called during interpreter
+shutdown.
+
+..
+
+.. bpo: 32968
+.. date: 2018-03-18-15-57-32
+.. nonce: E4G7BO
+.. section: Library
+
+Modulo and floor division involving Fraction and float should return float.
+
+..
+
+.. bpo: 33061
+.. date: 2018-03-16-16-07-33
+.. nonce: TRTTek
+.. section: Library
+
+Add missing ``NoReturn`` to ``__all__`` in typing.py
+
+..
+
+.. bpo: 33078
+.. date: 2018-03-15-07-38-00
+.. nonce: RmjUF5
+.. section: Library
+
+Fix the size handling in multiprocessing.Queue when a pickling error occurs.
+
+..
+
+.. bpo: 33064
+.. date: 2018-03-12-19-58-25
+.. nonce: LO2KIY
+.. section: Library
+
+lib2to3 now properly supports trailing commas after ``*args`` and
+``**kwargs`` in function signatures.
+
+..
+
+.. bpo: 33056
+.. date: 2018-03-12-16-40-00
+.. nonce: lNN9Eh
+.. section: Library
+
+FIX properly close leaking fds in concurrent.futures.ProcessPoolExecutor.
+
+..
+
+.. bpo: 33021
+.. date: 2018-03-12-00-27-56
+.. nonce: m19B9T
+.. section: Library
+
+Release the GIL during fstat() calls, avoiding hang of all threads when
+calling mmap.mmap(), os.urandom(), and random.seed(). Patch by Nir Soffer.
+
+..
+
+.. bpo: 31804
+.. date: 2018-03-11-19-03-52
+.. nonce: i8KUMp
+.. section: Library
+
+Avoid failing in multiprocessing.Process if the standard streams are closed
+or None at exit.
+
+..
+
+.. bpo: 33034
+.. date: 2018-03-11-08-44-12
+.. nonce: bpb23d
+.. section: Library
+
+Providing an explicit error message when casting the port property to
+anything that is not an integer value using ``urlparse()`` and
+``urlsplit()``. Patch by Matt Eaton.
+
+..
+
+.. bpo: 30249
+.. date: 2018-03-11-00-20-26
+.. nonce: KSkgLB
+.. section: Library
+
+Improve struct.unpack_from() exception messages for problems with the buffer
+size and offset.
+
+..
+
+.. bpo: 33037
+.. date: 2018-03-09-23-07-07
+.. nonce: nAJ3at
+.. section: Library
+
+Skip sending/receiving data after SSL transport closing.
+
+..
+
+.. bpo: 27683
+.. date: 2018-03-07-22-28-17
+.. nonce: 572Rv4
+.. section: Library
+
+Fix a regression in :mod:`ipaddress` that result of :meth:`hosts` is empty
+when the network is constructed by a tuple containing an integer mask and
+only 1 bit left for addresses.
+
+..
+
+.. bpo: 22674
+.. date: 2018-03-07-19-37-00
+.. nonce: 2sIMmM
+.. section: Library
+
+Add the strsignal() function in the signal module that returns the system
+description of the given signal, as returned by strsignal(3).
+
+..
+
+.. bpo: 32999
+.. date: 2018-03-06-20-30-20
+.. nonce: lgFXWl
+.. section: Library
+
+Fix C implementation of ``ABC.__subclasscheck__(cls, subclass)`` crashed
+when ``subclass`` is not a type object.
+
+..
+
+.. bpo: 33009
+.. date: 2018-03-06-11-54-59
+.. nonce: -Ekysb
+.. section: Library
+
+Fix inspect.signature() for single-parameter partialmethods.
+
+..
+
+.. bpo: 32969
+.. date: 2018-03-06-00-19-41
+.. nonce: rGTKa0
+.. section: Library
+
+Expose several missing constants in zlib and fix corresponding
+documentation.
+
+..
+
+.. bpo: 32056
+.. date: 2018-03-01-17-49-56
+.. nonce: IlpfgE
+.. section: Library
+
+Improved exceptions raised for invalid number of channels and sample width
+when read an audio file in modules :mod:`aifc`, :mod:`wave` and
+:mod:`sunau`.
+
+..
+
+.. bpo: 32970
+.. date: 2018-02-28-18-39-48
+.. nonce: IPWtbS
+.. section: Library
+
+Improved disassembly of the MAKE_FUNCTION instruction.
+
+..
+
+.. bpo: 32844
+.. date: 2018-02-28-13-08-00
+.. nonce: u8tnAe
+.. section: Library
+
+Fix wrong redirection of a low descriptor (0 or 1) to stderr in subprocess
+if another low descriptor is closed.
+
+..
+
+.. bpo: 32960
+.. date: 2018-02-26-20-04-40
+.. nonce: 48r0Ml
+.. section: Library
+
+For dataclasses, disallow inheriting frozen from non-frozen classes, and
+also disallow inheriting non-frozen from frozen classes. This restriction
+will be relaxed at a future date.
+
+..
+
+.. bpo: 32713
+.. date: 2018-02-26-13-16-36
+.. nonce: 55yegW
+.. section: Library
+
+Fixed tarfile.itn handling of out-of-bounds float values. Patch by Joffrey
+Fuhrer.
+
+..
+
+.. bpo: 32257
+.. date: 2018-02-26-09-08-07
+.. nonce: 6ElnUt
+.. section: Library
+
+The ssl module now contains OP_NO_RENEGOTIATION constant, available with
+OpenSSL 1.1.0h or 1.1.1.
+
+..
+
+.. bpo: 32951
+.. date: 2018-02-25-18-22-01
+.. nonce: gHrCXq
+.. section: Library
+
+Direct instantiation of SSLSocket and SSLObject objects is now prohibited.
+The constructors were never documented, tested, or designed as public
+constructors. Users were suppose to use ssl.wrap_socket() or SSLContext.
+
+..
+
+.. bpo: 32929
+.. date: 2018-02-25-13-47-48
+.. nonce: X2gTDH
+.. section: Library
+
+Remove the tri-state parameter "hash", and add the boolean "unsafe_hash". If
+unsafe_hash is True, add a __hash__ function, but if a __hash__ exists,
+raise TypeError. If unsafe_hash is False, add a __hash__ based on the
+values of eq= and frozen=. The unsafe_hash=False behavior is the same as
+the old hash=None behavior. unsafe_hash=False is the default, just as
+hash=None used to be.
+
+..
+
+.. bpo: 32947
+.. date: 2018-02-25-13-06-21
+.. nonce: mqStVW
+.. section: Library
+
+Add OP_ENABLE_MIDDLEBOX_COMPAT and test workaround for TLSv1.3 for future
+compatibility with OpenSSL 1.1.1.
+
+..
+
+.. bpo: 32146
+.. date: 2018-02-25-10-17-23
+.. nonce: xOzUFW
+.. section: Library
+
+Document the interaction between frozen executables and the spawn and
+forkserver start methods in multiprocessing.
+
+..
+
+.. bpo: 30622
+.. date: 2018-02-24-21-40-42
+.. nonce: dQjxSe
+.. section: Library
+
+The ssl module now detects missing NPN support in LibreSSL.
+
+..
+
+.. bpo: 32922
+.. date: 2018-02-23-19-12-04
+.. nonce: u-xe0B
+.. section: Library
+
+dbm.open() now encodes filename with the filesystem encoding rather than
+default encoding.
+
+..
+
+.. bpo: 32759
+.. date: 2018-02-23-12-21-41
+.. nonce: M-y9GA
+.. section: Library
+
+Free unused arenas in multiprocessing.heap.
+
+..
+
+.. bpo: 32859
+.. date: 2018-02-19-17-46-31
+.. nonce: kAT-Xp
+.. section: Library
+
+In ``os.dup2``, don't check every call whether the ``dup3`` syscall exists
+or not.
+
+..
+
+.. bpo: 32556
+.. date: 2018-02-19-14-27-51
+.. nonce: CsRsgr
+.. section: Library
+
+nt._getfinalpathname, nt._getvolumepathname and nt._getdiskusage now
+correctly convert from bytes.
+
+..
+
+.. bpo: 21060
+.. date: 2018-02-17-19-20-19
+.. nonce: S1Z-x6
+.. section: Library
+
+Rewrite confusing message from setup.py upload from "No dist file created in
+earlier command" to the more helpful "Must create and upload files in one
+command".
+
+..
+
+.. bpo: 32857
+.. date: 2018-02-16-14-37-14
+.. nonce: -XljAx
+.. section: Library
+
+In :mod:`tkinter`, ``after_cancel(None)`` now raises a :exc:`ValueError`
+instead of canceling the first scheduled function. Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 32852
+.. date: 2018-02-15-12-04-29
+.. nonce: HDqIxM
+.. section: Library
+
+Make sure sys.argv remains as a list when running trace.
+
+..
+
+.. bpo: 31333
+.. date: 2018-02-15-08-18-52
+.. nonce: 4fF-gM
+.. section: Library
+
+``_abc`` module is added. It is a speedup module with C implementations for
+various functions and methods in ``abc``. Creating an ABC subclass and
+calling ``isinstance`` or ``issubclass`` with an ABC subclass are up to 1.5x
+faster. In addition, this makes Python start-up up to 10% faster.
+
+Note that the new implementation hides internal registry and caches,
+previously accessible via private attributes ``_abc_registry``,
+``_abc_cache``, and ``_abc_negative_cache``. There are three debugging
+helper methods that can be used instead ``_dump_registry``,
+``_abc_registry_clear``, and ``_abc_caches_clear``.
+
+..
+
+.. bpo: 32841
+.. date: 2018-02-14-00-21-24
+.. nonce: bvHDOc
+.. section: Library
+
+Fixed `asyncio.Condition` issue which silently ignored cancellation after
+notifying and cancelling a conditional lock. Patch by Bar Harel.
+
+..
+
+.. bpo: 32819
+.. date: 2018-02-11-15-54-41
+.. nonce: ZTRX2Q
+.. section: Library
+
+ssl.match_hostname() has been simplified and no longer depends on re and
+ipaddress module for wildcard and IP addresses. Error reporting for invalid
+wildcards has been improved.
+
+..
+
+.. bpo: 19675
+.. date: 2018-02-10-23-41-05
+.. nonce: -dj35-
+.. section: Library
+
+``multiprocessing.Pool`` no longer leaks processes if its initialization
+fails.
+
+..
+
+.. bpo: 32394
+.. date: 2018-02-10-13-51-56
+.. nonce: dFM9SI
+.. section: Library
+
+socket: Remove TCP_FASTOPEN,TCP_KEEPCNT,TCP_KEEPIDLE,TCP_KEEPINTVL flags on
+older version Windows during run-time.
+
+..
+
+.. bpo: 31787
+.. date: 2018-02-09-21-41-56
+.. nonce: owSZ2t
+.. section: Library
+
+Fixed refleaks of ``__init__()`` methods in various modules. (Contributed by
+Oren Milman)
+
+..
+
+.. bpo: 30157
+.. date: 2018-02-09-14-44-43
+.. nonce: lEiiAK
+.. section: Library
+
+Fixed guessing quote and delimiter in csv.Sniffer.sniff() when only the last
+field is quoted. Patch by Jake Davis.
+
+..
+
+.. bpo: 30688
+.. date: 2018-02-08-18-59-11
+.. nonce: zBh4TH
+.. section: Library
+
+Added support of ``\N{name}`` escapes in regular expressions. Based on
+patch by Jonathan Eunice.
+
+..
+
+.. bpo: 32792
+.. date: 2018-02-08-00-47-07
+.. nonce: NtyDb4
+.. section: Library
+
+collections.ChainMap() preserves the order of the underlying mappings.
+
+..
+
+.. bpo: 32775
+.. date: 2018-02-07-19-12-10
+.. nonce: -T77_c
+.. section: Library
+
+:func:`fnmatch.translate()` no longer produces patterns which contain set
+operations. Sets starting with '[' or containing '--', '&&', '~~' or '||'
+will be interpreted differently in regular expressions in future versions.
+Currently they emit warnings. fnmatch.translate() now avoids producing
+patterns containing such sets by accident.
+
+..
+
+.. bpo: 32622
+.. date: 2018-02-06-17-58-15
+.. nonce: AE0Jz7
+.. section: Library
+
+Implement native fast sendfile for Windows proactor event loop.
+
+..
+
+.. bpo: 32777
+.. date: 2018-02-05-21-28-28
+.. nonce: C-wIXF
+.. section: Library
+
+Fix a rare but potential pre-exec child process deadlock in subprocess on
+POSIX systems when marking file descriptors inheritable on exec in the child
+process. This bug appears to have been introduced in 3.4.
+
+..
+
+.. bpo: 32647
+.. date: 2018-02-05-13-31-42
+.. nonce: ktmfR_
+.. section: Library
+
+The ctypes module used to depend on indirect linking for dlopen. The shared
+extension is now explicitly linked against libdl on platforms with dl.
+
+..
+
+.. bpo: 32749
+.. date: 2018-02-02-17-21-24
+.. nonce: u5scIn
+.. section: Library
+
+A :mod:`dbm.dumb` database opened with flags 'r' is now read-only.
+:func:`dbm.dumb.open` with flags 'r' and 'w' no longer creates a database if
+it does not exist.
+
+..
+
+.. bpo: 32741
+.. date: 2018-02-01-17-54-08
+.. nonce: KUvOPL
+.. section: Library
+
+Implement ``asyncio.TimerHandle.when()`` method.
+
+..
+
+.. bpo: 32691
+.. date: 2018-02-01-15-53-35
+.. nonce: VLWVTq
+.. section: Library
+
+Use mod_spec.parent when running modules with pdb
+
+..
+
+.. bpo: 32734
+.. date: 2018-02-01-01-34-47
+.. nonce: gCV9AD
+.. section: Library
+
+Fixed ``asyncio.Lock()`` safety issue which allowed acquiring and locking
+the same lock multiple times, without it being free. Patch by Bar Harel.
+
+..
+
+.. bpo: 32727
+.. date: 2018-01-30-17-46-18
+.. nonce: aHVsRC
+.. section: Library
+
+Do not include name field in SMTP envelope from address. Patch by Stéphane
+Wirtel
+
+..
+
+.. bpo: 31453
+.. date: 2018-01-21-15-01-50
+.. nonce: cZiZBe
+.. section: Library
+
+Add TLSVersion constants and SSLContext.maximum_version / minimum_version
+attributes. The new API wraps OpenSSL 1.1
+https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_set_min_proto_version.html
+feature.
+
+..
+
+.. bpo: 24334
+.. date: 2018-01-20-23-17-25
+.. nonce: GZuQLv
+.. section: Library
+
+Internal implementation details of ssl module were cleaned up. The SSLSocket
+has one less layer of indirection. Owner and session information are now
+handled by the SSLSocket and SSLObject constructor. Channel binding
+implementation has been simplified.
+
+..
+
+.. bpo: 31848
+.. date: 2018-01-18-23-34-17
+.. nonce: M2cldy
+.. section: Library
+
+Fix the error handling in Aifc_read.initfp() when the SSND chunk is not
+found. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 32585
+.. date: 2018-01-18-13-09-00
+.. nonce: qpeijr
+.. section: Library
+
+Add Ttk spinbox widget to :mod:`tkinter.ttk`. Patch by Alan D Moore.
+
+..
+
+.. bpo: 32512
+.. date: 2018-01-07-17-43-10
+.. nonce: flC-dE
+.. section: Library
+
+:mod:`profile` CLI accepts `-m module_name` as an alternative to script
+path.
+
+..
+
+.. bpo: 8525
+.. date: 2018-01-01-00-16-59
+.. nonce: Dq8s63
+.. section: Library
+
+help() on a type now displays builtin subclasses. This is intended primarily
+to help with notification of more specific exception subclasses.
+
+Patch by Sanyam Khurana.
+
+..
+
+.. bpo: 31639
+.. date: 2017-12-27-21-55-19
+.. nonce: l3avDJ
+.. section: Library
+
+http.server now exposes a ThreadingHTTPServer class and uses it when the
+module is run with ``-m`` to cope with web browsers pre-opening sockets.
+
+..
+
+.. bpo: 29877
+.. date: 2017-12-16-11-40-52
+.. nonce: SfWhmz
+.. section: Library
+
+compileall: import ProcessPoolExecutor only when needed, preventing hangs on
+low resource platforms
+
+..
+
+.. bpo: 32221
+.. date: 2017-12-06-10-10-10
+.. nonce: ideco_
+.. section: Library
+
+Various functions returning tuple containing IPv6 addresses now omit
+``%scope`` part since the same information is already encoded in *scopeid*
+tuple item. Especially this speeds up :func:`socket.recvfrom` when it
+receives multicast packet since useless resolving of network interface name
+is omitted.
+
+..
+
+.. bpo: 32147
+.. date: 2017-11-28-10-23-13
+.. nonce: PI2k1Y
+.. section: Library
+
+:func:`binascii.unhexlify` is now up to 2 times faster. Patch by Sergey
+Fedoseev.
+
+..
+
+.. bpo: 30693
+.. date: 2017-11-27-15-09-49
+.. nonce: yC4mJ8
+.. section: Library
+
+The TarFile class now recurses directories in a reproducible way.
+
+..
+
+.. bpo: 30693
+.. date: 2017-11-27-15-09-49
+.. nonce: yC4mJ7
+.. section: Library
+
+The ZipFile class now recurses directories in a reproducible way.
+
+..
+
+.. bpo: 31680
+.. date: 2017-11-01-15-44-48
+.. nonce: yO6oSC
+.. section: Library
+
+Added :data:`curses.ncurses_version`.
+
+..
+
+.. bpo: 31908
+.. date: 2017-10-31
+.. nonce: g4xh8x
+.. section: Library
+
+Fix output of cover files for ``trace`` module command-line tool. Previously
+emitted cover files only when ``--missing`` option was used. Patch by
+Michael Selik.
+
+..
+
+.. bpo: 31608
+.. date: 2017-10-29-10-37-55
+.. nonce: wkp8Nw
+.. section: Library
+
+Raise a ``TypeError`` instead of crashing if a ``collections.deque``
+subclass returns a non-deque from ``__new__``. Patch by Oren Milman.
+
+..
+
+.. bpo: 31425
+.. date: 2017-10-24-10-18-35
+.. nonce: 1lgw47
+.. section: Library
+
+Add support for sockets of the AF_QIPCRTR address family, supported by the
+Linux kernel. This is used to communicate with services, such as GPS or
+radio, running on Qualcomm devices. Patch by Bjorn Andersson.
+
+..
+
+.. bpo: 22005
+.. date: 2017-10-12-22-39-55
+.. nonce: lGP-sc
+.. section: Library
+
+Implemented unpickling instances of :class:`~datetime.datetime`,
+:class:`~datetime.date` and :class:`~datetime.time` pickled by Python 2.
+``encoding='latin1'`` should be used for successful decoding.
+
+..
+
+.. bpo: 27645
+.. date: 2017-10-05-20-41-48
+.. nonce: 1Y_Wag
+.. section: Library
+
+:class:`sqlite3.Connection` now exposes a
+:class:`~sqlite3.Connection.backup` method, if the underlying SQLite library
+is at version 3.6.11 or higher. Patch by Lele Gaifax.
+
+..
+
+.. bpo: 16865
+.. date: 2017-09-29-16-40-38
+.. nonce: l-f6I_
+.. section: Library
+
+Support arrays >=2GiB in :mod:`ctypes`. Patch by Segev Finer.
+
+..
+
+.. bpo: 31508
+.. date: 2017-09-19-12-38-31
+.. nonce: pDsFJl
+.. section: Library
+
+Removed support of arguments in `tkinter.ttk.Treeview.selection`. It was
+deprecated in 3.6. Use specialized methods like `selection_set` for
+changing the selection.
+
+..
+
+.. bpo: 29456
+.. date: 2017-08-24-17-55-39
+.. nonce: XaB3MP
+.. section: Library
+
+Fix bugs in hangul normalization: u1176, u11a7 and u11c3
+
+..
+
+.. bpo: 21257
+.. date: 2019-01-15-21-45-27
+.. nonce: U9LKkx
+.. section: Documentation
+
+Document :func:`http.client.parse_headers`.
+
+..
+
+.. bpo: 34764
+.. date: 2018-12-23-23-52-31
+.. nonce: DwOGeT
+.. section: Documentation
+
+Improve example of iter() with 2nd sentinel argument.
+
+..
+
+.. bpo: 35564
+.. date: 2018-12-22-22-52-05
+.. nonce: TuEU_D
+.. section: Documentation
+
+Explicitly set master_doc variable in conf.py for compliance with Sphinx 2.0
+
+..
+
+.. bpo: 35511
+.. date: 2018-12-16-16-14-44
+.. nonce: iVcyav
+.. section: Documentation
+
+Specified that profile.Profile class doesn't not support enable or disable
+methods. Also, elaborated that Profile object as a context manager is only
+supported in cProfile module.
+
+..
+
+.. bpo: 10536
+.. date: 2018-11-04-22-03-56
+.. nonce: a0IsfE
+.. section: Documentation
+
+Enhance the gettext docs. Patch by Éric Araujo
+
+..
+
+.. bpo: 35089
+.. date: 2018-10-28-16-51-31
+.. nonce: _stCpS
+.. section: Documentation
+
+Remove mention of ``typing.io`` and ``typing.re``. Their types should be
+imported from ``typing`` directly.
+
+..
+
+.. bpo: 35038
+.. date: 2018-10-25-17-45-09
+.. nonce: 2eVOYS
+.. section: Documentation
+
+Fix the documentation about an unexisting `f_restricted` attribute in the
+frame object. Patch by Stéphane Wirtel
+
+..
+
+.. bpo: 35042
+.. date: 2018-10-22-14-17-57
+.. nonce: 1UGv1a
+.. section: Documentation
+
+Replace PEP XYZ by the pep role and allow to use the direct links to the
+PEPs.
+
+..
+
+.. bpo: 35044
+.. date: 2018-10-22-14-09-58
+.. nonce: qjvNtI
+.. section: Documentation
+
+Fix the documentation with the role ``exc`` for the appropriated exception.
+Patch by Stéphane Wirtel
+
+..
+
+.. bpo: 35035
+.. date: 2018-10-21-02-20-36
+.. nonce: 4zBObK
+.. section: Documentation
+
+Rename documentation for :mod:`email.utils` to ``email.utils.rst``.
+
+..
+
+.. bpo: 34967
+.. date: 2018-10-13-07-39-57
+.. nonce: E40tFP
+.. section: Documentation
+
+Use app.add_object_type() instead of the deprecated Sphinx function
+app.description_unit()
+
+..
+
+.. bpo: 34913
+.. date: 2018-10-10-00-34-08
+.. nonce: kVd1Fv
+.. section: Documentation
+
+Add documentation about the new command line interface of the gzip module.
+
+..
+
+.. bpo: 32174
+.. date: 2018-10-08-19-15-28
+.. nonce: YO9CYm
+.. section: Documentation
+
+chm document displays non-ASCII charaters properly on some MBCS Windows
+systems.
+
+..
+
+.. bpo: 11233
+.. date: 2018-10-03-20-39-25
+.. nonce: BX6Gen
+.. section: Documentation
+
+Create availability directive for documentation. Original patch by Georg
+Brandl.
+
+..
+
+.. bpo: 34790
+.. date: 2018-09-24-12-47-08
+.. nonce: G2KXIH
+.. section: Documentation
+
+Document how passing coroutines to asyncio.wait() can be confusing.
+
+..
+
+.. bpo: 34552
+.. date: 2018-09-12-10-18-04
+.. nonce: p9PoYv
+.. section: Documentation
+
+Make clear that ``==`` operator sometimes is equivalent to `is`. The ``<``,
+``<=``, ``>`` and ``>=`` operators are only defined where they make sense.
+
+..
+
+.. bpo: 28617
+.. date: 2018-09-06-22-39-47
+.. nonce: MjnJLz
+.. section: Documentation
+
+Fixed info in the stdtypes docs concerning the types that support membership
+tests.
+
+..
+
+.. bpo: 20177
+.. date: 2018-07-28-17-17-42
+.. nonce: cOZJWp
+.. section: Documentation
+
+Migrate datetime.date.fromtimestamp to Argument Clinic. Patch by Tim
+Hoffmann.
+
+..
+
+.. bpo: 34065
+.. date: 2018-07-07-20-38-41
+.. nonce: 1snofM
+.. section: Documentation
+
+Fix wrongly written basicConfig documentation markup syntax
+
+..
+
+.. bpo: 33460
+.. date: 2018-06-22-08-38-29
+.. nonce: kHt4D0
+.. section: Documentation
+
+replaced ellipsis with correct error codes in tutorial chapter 3.
+
+..
+
+.. bpo: 33847
+.. date: 2018-06-15-14-58-45
+.. nonce: IIDp6t
+.. section: Documentation
+
+Add '@' operator entry to index.
+
+..
+
+.. bpo: 33409
+.. date: 2018-06-08-23-46-01
+.. nonce: r4z9MM
+.. section: Documentation
+
+Clarified the relationship between :pep:`538`'s PYTHONCOERCECLOCALE and PEP
+540's PYTHONUTF8 mode.
+
+..
+
+.. bpo: 33197
+.. date: 2018-06-08-23-37-14
+.. nonce: OERTKf
+.. section: Documentation
+
+Add versionadded tag to the documentation of ParameterKind.description
+
+..
+
+.. bpo: 17045
+.. date: 2018-06-07-08-33-45
+.. nonce: ZNx6KU
+.. section: Documentation
+
+Improve the C-API doc for PyTypeObject. This includes adding several
+quick-reference tables and a lot of missing slot/typedef entries. The
+existing entries were also cleaned up with a slightly more consistent
+format.
+
+..
+
+.. bpo: 33736
+.. date: 2018-06-01-12-27-40
+.. nonce: JVegIu
+.. section: Documentation
+
+Improve the documentation of :func:`asyncio.open_connection`,
+:func:`asyncio.start_server` and their UNIX socket counterparts.
+
+..
+
+.. bpo: 23859
+.. date: 2018-05-29-16-02-31
+.. nonce: E5gba1
+.. section: Documentation
+
+Document that `asyncio.wait()` does not cancel its futures on timeout.
+
+..
+
+.. bpo: 32436
+.. date: 2018-05-23-11-59-51
+.. nonce: S1LGPa
+.. section: Documentation
+
+Document :pep:`567` changes to asyncio.
+
+..
+
+.. bpo: 33604
+.. date: 2018-05-22-11-47-14
+.. nonce: 5YHTpz
+.. section: Documentation
+
+Update HMAC md5 default to a DeprecationWarning, bump removal to 3.8.
+
+..
+
+.. bpo: 33594
+.. date: 2018-05-21-14-36-12
+.. nonce: -HRcyX
+.. section: Documentation
+
+Document ``getargspec``, ``from_function`` and ``from_builtin`` as
+deprecated in their respective docstring, and include version since
+deprecation in DeprecationWarning message.
+
+..
+
+.. bpo: 33503
+.. date: 2018-05-14-20-08-58
+.. nonce: Wvt0qg
+.. section: Documentation
+
+Fix broken pypi link
+
+..
+
+.. bpo: 33421
+.. date: 2018-05-14-15-15-41
+.. nonce: 3GU_QO
+.. section: Documentation
+
+Add missing documentation for ``typing.AsyncContextManager``.
+
+..
+
+.. bpo: 33487
+.. date: 2018-05-13-14-44-30
+.. nonce: iLDzFb
+.. section: Documentation
+
+BZ2file now emit a DeprecationWarning when buffering=None is passed, the
+deprecation message and documentation also now explicitly state it is
+deprecated since 3.0.
+
+..
+
+.. bpo: 33378
+.. date: 2018-04-29-04-02-18
+.. nonce: -anAHN
+.. section: Documentation
+
+Add Korean language switcher for https://docs.python.org/3/
+
+..
+
+.. bpo: 33276
+.. date: 2018-04-20-14-09-36
+.. nonce: rA1z_3
+.. section: Documentation
+
+Clarify that the ``__path__`` attribute on modules cannot be just any value.
+
+..
+
+.. bpo: 33201
+.. date: 2018-04-01-21-03-41
+.. nonce: aa8Lkl
+.. section: Documentation
+
+Modernize documentation for writing C extension types.
+
+..
+
+.. bpo: 33195
+.. date: 2018-04-01-14-30-36
+.. nonce: dRS-XX
+.. section: Documentation
+
+Deprecate ``Py_UNICODE`` usage in ``c-api/arg`` document. ``Py_UNICODE``
+related APIs are deprecated since Python 3.3, but it is missed in the
+document.
+
+..
+
+.. bpo: 33126
+.. date: 2018-03-28-17-03-17
+.. nonce: 5UGkNv
+.. section: Documentation
+
+Document PyBuffer_ToContiguous().
+
+..
+
+.. bpo: 27212
+.. date: 2018-03-22-19-23-04
+.. nonce: wrE5KR
+.. section: Documentation
+
+Modify documentation for the :func:`islice` recipe to consume initial values
+up to the start index.
+
+..
+
+.. bpo: 28247
+.. date: 2018-03-20-20-11-05
+.. nonce: -V-WS-
+.. section: Documentation
+
+Update :mod:`zipapp` documentation to describe how to make standalone
+applications.
+
+..
+
+.. bpo: 18802
+.. date: 2018-03-11-18-53-47
+.. nonce: JhAqH3
+.. section: Documentation
+
+Documentation changes for ipaddress. Patch by Jon Foster and Berker Peksag.
+
+..
+
+.. bpo: 27428
+.. date: 2018-03-11-00-16-56
+.. nonce: B7A8FT
+.. section: Documentation
+
+Update documentation to clarify that ``WindowsRegistryFinder`` implements
+``MetaPathFinder``. (Patch by Himanshu Lakhara)
+
+..
+
+.. bpo: 28124
+.. date: 2018-02-25-16-33-35
+.. nonce: _uzkgq
+.. section: Documentation
+
+The ssl module function ssl.wrap_socket() has been de-emphasized and
+deprecated in favor of the more secure and efficient
+SSLContext.wrap_socket() method.
+
+..
+
+.. bpo: 17232
+.. date: 2018-02-23-12-48-03
+.. nonce: tmuTKL
+.. section: Documentation
+
+Clarify docs for -O and -OO. Patch by Terry Reedy.
+
+..
+
+.. bpo: 32436
+.. date: 2018-02-14-11-10-41
+.. nonce: TTJ2jb
+.. section: Documentation
+
+Add documentation for the contextvars module (PEP 567).
+
+..
+
+.. bpo: 32800
+.. date: 2018-02-10-15-16-04
+.. nonce: FyrqCk
+.. section: Documentation
+
+Update link to w3c doc for xml default namespaces.
+
+..
+
+.. bpo: 11015
+.. date: 2018-02-10-12-48-38
+.. nonce: -gUf34
+.. section: Documentation
+
+Update :mod:`test.support` documentation.
+
+..
+
+.. bpo: 32613
+.. date: 2018-02-05-15-05-53
+.. nonce: TDjgM1
+.. section: Documentation
+
+Update the faq/windows.html to use the py command from PEP 397 instead of
+python.
+
+..
+
+.. bpo: 8722
+.. date: 2018-02-03-06-11-37
+.. nonce: MPyVyj
+.. section: Documentation
+
+Document :meth:`__getattr__` behavior when property :meth:`get` method
+raises :exc:`AttributeError`.
+
+..
+
+.. bpo: 32614
+.. date: 2018-02-02-07-41-57
+.. nonce: LSqzGw
+.. section: Documentation
+
+Modify RE examples in documentation to use raw strings to prevent
+:exc:`DeprecationWarning` and add text to REGEX HOWTO to highlight the
+deprecation.
+
+..
+
+.. bpo: 20709
+.. date: 2018-02-01-10-57-24
+.. nonce: 1flcnc
+.. section: Documentation
+
+Remove the paragraph where we explain that os.utime() does not support a
+directory as path under Windows. Patch by Jan-Philip Gehrcke
+
+..
+
+.. bpo: 32722
+.. date: 2018-01-30-11-28-27
+.. nonce: frdp6A
+.. section: Documentation
+
+Remove the bad example in the tutorial of the Generator Expression. Patch by
+Stéphane Wirtel
+
+..
+
+.. bpo: 31972
+.. date: 2018-01-25-14-23-12
+.. nonce: w1m_8r
+.. section: Documentation
+
+Improve docstrings for `pathlib.PurePath` subclasses.
+
+..
+
+.. bpo: 30607
+.. date: 2018-01-25-13-58-49
+.. nonce: 4dXxiq
+.. section: Documentation
+
+Use the externalized ``python-docs-theme`` package when building the
+documentation.
+
+..
+
+.. bpo: 8243
+.. date: 2018-01-13-20-30-53
+.. nonce: s98r28
+.. section: Documentation
+
+Add a note about curses.addch and curses.addstr exception behavior when
+writing outside a window, or pad.
+
+..
+
+.. bpo: 32337
+.. date: 2017-12-22-17-29-37
+.. nonce: eZe-ID
+.. section: Documentation
+
+Update documentation related with ``dict`` order.
+
+..
+
+.. bpo: 25041
+.. date: 2017-10-23-13-41-12
+.. nonce: iAo2gW
+.. section: Documentation
+
+Document ``AF_PACKET`` in the :mod:`socket` module.
+
+..
+
+.. bpo: 31432
+.. date: 2017-09-13-07-14-59
+.. nonce: yAY4Z3
+.. section: Documentation
+
+Clarify meaning of CERT_NONE, CERT_OPTIONAL, and CERT_REQUIRED flags for
+ssl.SSLContext.verify_mode.
+
+..
+
+.. bpo: 35772
+.. date: 2019-01-18-12-19-19
+.. nonce: sGBbsn
+.. section: Tests
+
+Fix sparse file tests of test_tarfile on ppc64 with the tmpfs filesystem.
+Fix the function testing if the filesystem supports sparse files: create a
+file which contains data and "holes", instead of creating a file which
+contains no data. tmpfs effective block size is a page size (tmpfs lives in
+the page cache). RHEL uses 64 KiB pages on aarch64, ppc64, ppc64le, only
+s390x and x86_64 use 4 KiB pages, whereas the test punch holes of 4 KiB.
+
+..
+
+.. bpo: 35045
+.. date: 2019-01-10-18-35-42
+.. nonce: qdd6d9
+.. section: Tests
+
+Make ssl tests less strict and also accept TLSv1 as system default. The
+changes unbreaks test_min_max_version on Fedora 29.
+
+..
+
+.. bpo: 32710
+.. date: 2019-01-07-23-34-41
+.. nonce: Hzo1b8
+.. section: Tests
+
+``test_asyncio/test_sendfile.py`` now resets the event loop policy using
+:func:`tearDownModule` as done in other tests, to prevent a warning when
+running tests on Windows.
+
+..
+
+.. bpo: 33717
+.. date: 2019-01-07-23-22-44
+.. nonce: GhHXv8
+.. section: Tests
+
+test.pythoninfo now logs information of all clocks, not only time.time() and
+time.perf_counter().
+
+..
+
+.. bpo: 35488
+.. date: 2019-01-04-21-34-53
+.. nonce: U7JJzP
+.. section: Tests
+
+Add a test to pathlib's Path.match() to verify it does not support
+glob-style ** recursive pattern matching.
+
+..
+
+.. bpo: 31731
+.. date: 2018-12-18-23-20-39
+.. nonce: tcv85C
+.. section: Tests
+
+Fix a race condition in ``check_interrupted_write()`` of test_io: create
+directly the thread with SIGALRM signal blocked, rather than blocking the
+signal later from the thread. Previously, it was possible that the thread
+gets the signal before the signal is blocked.
+
+..
+
+.. bpo: 35424
+.. date: 2018-12-18-22-36-53
+.. nonce: 1Pz4IS
+.. section: Tests
+
+Fix test_multiprocessing_main_handling: use :class:`multiprocessing.Pool`
+with a context manager and then explicitly join the pool.
+
+..
+
+.. bpo: 35519
+.. date: 2018-12-17-16-41-45
+.. nonce: RR3L_w
+.. section: Tests
+
+Rename :mod:`test.bisect` module to :mod:`test.bisect_cmd` to avoid conflict
+with :mod:`bisect` module when running directly a test like ``./python
+Lib/test/test_xmlrpc.py``.
+
+..
+
+.. bpo: 35513
+.. date: 2018-12-16-23-36-47
+.. nonce: k4WHlA
+.. section: Tests
+
+Replace :func:`time.time` with :func:`time.monotonic` in tests to measure
+time delta.
+
+..
+
+.. bpo: 34279
+.. date: 2018-12-12-18-20-18
+.. nonce: DhKcuP
+.. section: Tests
+
+:func:`test.support.run_unittest` no longer raise :exc:`TestDidNotRun` if
+the test result contains skipped tests. The exception is now only raised if
+no test have been run and no test have been skipped.
+
+..
+
+.. bpo: 35412
+.. date: 2018-12-12-18-07-58
+.. nonce: kbuJor
+.. section: Tests
+
+Add testcase to ``test_future4``: check unicode literal.
+
+..
+
+.. bpo: 26704
+.. date: 2018-12-10-13-18-37
+.. nonce: DBAN4c
+.. section: Tests
+
+Added test demonstrating double-patching of an instance method. Patch by
+Anthony Sottile.
+
+..
+
+.. bpo: 33725
+.. date: 2018-12-09-01-27-29
+.. nonce: TaGayj
+.. section: Tests
+
+test_multiprocessing_fork may crash on recent versions of macOS. Until the
+issue is resolved, skip the test on macOS.
+
+..
+
+.. bpo: 35352
+.. date: 2018-11-30-17-18-56
+.. nonce: 8bD7GC
+.. section: Tests
+
+Modify test_asyncio to use the certificate set from the test directory.
+
+..
+
+.. bpo: 35317
+.. date: 2018-11-26-16-54-21
+.. nonce: jByGP2
+.. section: Tests
+
+Fix ``mktime()`` overflow error in ``test_email``: run
+``test_localtime_daylight_true_dst_true()`` and
+``test_localtime_daylight_false_dst_true()`` with a specific timezone.
+
+..
+
+.. bpo: 21263
+.. date: 2018-11-04-20-17-09
+.. nonce: T3qo9r
+.. section: Tests
+
+After several reports that test_gdb does not work properly on macOS and
+since gdb is not shipped by default anymore, test_gdb is now skipped on
+macOS when LLVM Clang has been used to compile Python. Patch by Lysandros
+Nikolaou
+
+..
+
+.. bpo: 34279
+.. date: 2018-10-27-13-41-55
+.. nonce: v0Xqxe
+.. section: Tests
+
+regrtest issue a warning when no tests have been executed in a particular
+test file. Also, a new final result state is issued if no test have been
+executed across all test files. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 34962
+.. date: 2018-10-11-22-34-27
+.. nonce: 0PLBi8
+.. section: Tests
+
+make docstest in Doc now passes., and is enforced in CI
+
+..
+
+.. bpo: 23596
+.. date: 2018-10-09-23-51-07
+.. nonce: rdnert
+.. section: Tests
+
+Use argparse for the command line of the gzip module. Patch by Antony Lee
+
+..
+
+.. bpo: 34537
+.. date: 2018-09-21-17-33-41
+.. nonce: GImYtZ
+.. section: Tests
+
+Fix ``test_gdb.test_strings()`` when ``LC_ALL=C`` and GDB was compiled with
+Python 3.6 or earlier.
+
+..
+
+.. bpo: 34587
+.. date: 2018-09-13-20-58-07
+.. nonce: rCcxp3
+.. section: Tests
+
+test_socket: Remove RDSTest.testCongestion(). The test tries to fill the
+receiver's socket buffer and expects an error. But the RDS protocol doesn't
+require that. Moreover, the Linux implementation of RDS expects that the
+producer of the messages reduces its rate, it's not the role of the receiver
+to trigger an error. The test fails on Fedora 28 by design, so just remove
+it.
+
+..
+
+.. bpo: 34661
+.. date: 2018-09-13-09-53-15
+.. nonce: bdTamP
+.. section: Tests
+
+Fix test_shutil if unzip doesn't support -t.
+
+..
+
+.. bpo: 34200
+.. date: 2018-09-12-17-00-34
+.. nonce: dfxYQK
+.. section: Tests
+
+Fixed non-deterministic flakiness of test_pkg by not using the scary
+test.support.module_cleanup() logic to save and restore sys.modules contents
+between test cases.
+
+..
+
+.. bpo: 34569
+.. date: 2018-09-09-14-36-59
+.. nonce: okj1Xh
+.. section: Tests
+
+The experimental PEP 554 data channels now correctly pass negative PyLong
+objects between subinterpreters on 32-bit systems. Patch by Michael Felt.
+
+..
+
+.. bpo: 34594
+.. date: 2018-09-05-23-50-21
+.. nonce: tqL-GS
+.. section: Tests
+
+Fix usage of hardcoded ``errno`` values in the tests.
+
+..
+
+.. bpo: 34579
+.. date: 2018-09-04-15-16-42
+.. nonce: bp4HdM
+.. section: Tests
+
+Fix test_embed for AIX Patch by Michael Felt
+
+..
+
+.. bpo: 34542
+.. date: 2018-08-29-16-30-52
+.. nonce: 9stVAW
+.. section: Tests
+
+Use 3072 RSA keys and SHA-256 signature for test certs and keys.
+
+..
+
+.. bpo: 11193
+.. date: 2018-08-26-13-12-34
+.. nonce: H8fCGa
+.. section: Tests
+
+Remove special condition for AIX in `test_subprocess.test_undecodable_env`
+
+..
+
+.. bpo: 34347
+.. date: 2018-08-25-13-28-18
+.. nonce: IsRDPB
+.. section: Tests
+
+Fix `test_utf8_mode.test_cmd_line` for AIX
+
+..
+
+.. bpo: 34490
+.. date: 2018-08-24-20-23-15
+.. nonce: vb2cx4
+.. section: Tests
+
+On AIX with AF_UNIX family sockets getsockname() does not provide
+'sockname', so skip calls to transport.get_extra_info('sockname')
+
+..
+
+.. bpo: 34391
+.. date: 2018-08-16-18-48-47
+.. nonce: ouNfxC
+.. section: Tests
+
+Fix ftplib test for TLS 1.3 by reading from data socket.
+
+..
+
+.. bpo: 11192
+.. date: 2018-08-14-20-50-07
+.. nonce: g7TwYm
+.. section: Tests
+
+Fix `test_socket` on AIX 6.1 and later IPv6 zone id supports only
+supported by inet_pton6_zone() Switch to runtime-based platform.system() to
+establish current platform rather than build-time based sys.platform()
+
+..
+
+.. bpo: 34399
+.. date: 2018-08-14-10-47-44
+.. nonce: D_jd1G
+.. section: Tests
+
+Update all RSA keys and DH params to use at least 2048 bits.
+
+..
+
+.. bpo: 34373
+.. date: 2018-08-10-16-17-51
+.. nonce: SKdb1k
+.. section: Tests
+
+Fix ``test_mktime`` and ``test_pthread_getcpuclickid`` tests for AIX Add
+range checking for ``_PyTime_localtime`` for AIX Patch by Michael Felt
+
+..
+
+.. bpo: 11191
+.. date: 2018-08-08-22-41-30
+.. nonce: eq9tSH
+.. section: Tests
+
+Skip the distutils test 'test_search_cpp' when using XLC as compiler patch
+by aixtools (Michael Felt)
+
+..
+
+.. bpo: 0
+.. date: 2018-07-10-18-53-46
+.. nonce: UBQJBc
+.. section: Tests
+
+Improved an error message when mock assert_has_calls fails.
+
+..
+
+.. bpo: 33746
+.. date: 2018-06-19-17-55-46
+.. nonce: Sz7avn
+.. section: Tests
+
+Fix test_unittest when run in verbose mode.
+
+..
+
+.. bpo: 33901
+.. date: 2018-06-19-14-04-21
+.. nonce: OFW1Sr
+.. section: Tests
+
+Fix test_dbm_gnu on macOS with gdbm 1.15: add a larger value to make sure
+that the file size changes.
+
+..
+
+.. bpo: 33873
+.. date: 2018-06-16-01-37-31
+.. nonce: d86vab
+.. section: Tests
+
+Fix a bug in ``regrtest`` that caused an extra test to run if
+--huntrleaks/-R was used. Exit with error in case that invalid parameters
+are specified to --huntrleaks/-R (at least one warmup run and one repetition
+must be used).
+
+..
+
+.. bpo: 33562
+.. date: 2018-06-01-14-25-31
+.. nonce: GutEHf
+.. section: Tests
+
+Check that a global asyncio event loop policy is not left behind by any
+tests.
+
+..
+
+.. bpo: 33655
+.. date: 2018-05-26-16-01-40
+.. nonce: Frb4LA
+.. section: Tests
+
+Ignore test_posix_fallocate failures on BSD platforms that might be due to
+running on ZFS.
+
+..
+
+.. bpo: 32962
+.. date: 2018-05-10-16-59-15
+.. nonce: S-rcIN
+.. section: Tests
+
+Fixed test_gdb when Python is compiled with flags -mcet -fcf-protection -O0.
+
+..
+
+.. bpo: 33358
+.. date: 2018-04-27-11-46-35
+.. nonce: _OcR59
+.. section: Tests
+
+Fix ``test_embed.test_pre_initialization_sys_options()`` when the
+interpreter is built with ``--enable-shared``.
+
+..
+
+.. bpo: 32872
+.. date: 2018-03-28-01-35-02
+.. nonce: J5NDUj
+.. section: Tests
+
+Avoid regrtest compatibility issue with namespace packages.
+
+..
+
+.. bpo: 32517
+.. date: 2018-03-09-07-05-12
+.. nonce: ugc1iW
+.. section: Tests
+
+Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport of
+``KqueueSelector`` loop was not being closed.
+
+..
+
+.. bpo: 32663
+.. date: 2018-01-25-18-10-47
+.. nonce: IKDsqu
+.. section: Tests
+
+Making sure the `SMTPUTF8SimTests` class of tests gets run in
+test_smtplib.py.
+
+..
+
+.. bpo: 27643
+.. date: 2018-01-12-09-05-19
+.. nonce: _6z49y
+.. section: Tests
+
+Test_C test case needs "signed short" bitfields, but the IBM XLC compiler
+(on AIX) does not support this Skip the code and test when AIX and XLC are
+used
+
+Applicable to Python2-2.7 and later
+
+..
+
+.. bpo: 19417
+.. date: 2018-01-08-13-33-47
+.. nonce: 2asoXy
+.. section: Tests
+
+Add test_bdb.py.
+
+..
+
+.. bpo: 31809
+.. date: 2017-10-18-18-07-45
+.. nonce: KlQrkE
+.. section: Tests
+
+Add tests to verify connection with secp ECDH curves.
+
+..
+
+.. bpo: 34691
+.. date: 2019-02-02-13-34-05
+.. nonce: B-Lsj4
+.. section: Build
+
+The _contextvars module is now built into the core Python library on
+Windows.
+
+..
+
+.. bpo: 35683
+.. date: 2019-01-10-11-37-18
+.. nonce: pf5Oos
+.. section: Build
+
+Improved Azure Pipelines build steps and now verifying layouts correctly
+
+..
+
+.. bpo: 35642
+.. date: 2019-01-02-11-23-33
+.. nonce: pjkhJe
+.. section: Build
+
+Remove asynciomodule.c from pythoncore.vcxproj
+
+..
+
+.. bpo: 35550
+.. date: 2018-12-29-10-19-43
+.. nonce: BTuu8e
+.. section: Build
+
+Fix incorrect Solaris #ifdef checks to look for __sun && __SVR4 instead of
+sun when compiling.
+
+..
+
+.. bpo: 35499
+.. date: 2018-12-14-19-36-05
+.. nonce: 9yAldM
+.. section: Build
+
+``make profile-opt`` no longer replaces ``CFLAGS_NODIST`` with ``CFLAGS``.
+It now adds profile-guided optimization (PGO) flags to ``CFLAGS_NODIST``:
+existing ``CFLAGS_NODIST`` flags are kept.
+
+..
+
+.. bpo: 35257
+.. date: 2018-12-05-22-28-40
+.. nonce: dmcd_s
+.. section: Build
+
+Avoid leaking the linker flags from Link Time Optimizations (LTO) into
+distutils when compiling C extensions.
+
+..
+
+.. bpo: 35351
+.. date: 2018-12-04-15-33-28
+.. nonce: ZhhBfT
+.. section: Build
+
+When building Python with clang and LTO, LTO flags are no longer passed into
+CFLAGS to build third-party C extensions through distutils.
+
+..
+
+.. bpo: 35139
+.. date: 2018-11-01-15-01-23
+.. nonce: XZTttb
+.. section: Build
+
+Fix a compiler error when statically linking `pyexpat` in `Modules/Setup`.
+
+..
+
+.. bpo: 35059
+.. date: 2018-10-26-14-49-19
+.. nonce: PKsBxP
+.. section: Build
+
+PCbuild: Set InlineFunctionExpansion to OnlyExplicitInline ("/Ob1" option)
+in pyproject.props in Debug mode to expand functions marked as inline. This
+change should make Python compiled in Debug mode a little bit faster on
+Windows.
+
+..
+
+.. bpo: 35011
+.. date: 2018-10-17-17-38-57
+.. nonce: GgoPIC
+.. section: Build
+
+Restores the use of pyexpatns.h to isolate our embedded copy of the expat C
+library so that its symbols do not conflict at link or dynamic loading time
+with an embedding application or other extension modules with their own
+version of libexpat.
+
+..
+
+.. bpo: 28015
+.. date: 2018-10-16-12-22-36
+.. nonce: ylSgFh
+.. section: Build
+
+Have --with-lto works correctly with clang.
+
+..
+
+.. bpo: 34765
+.. date: 2018-09-26-17-29-10
+.. nonce: AvxdVj
+.. section: Build
+
+Update the outdated install-sh file to the latest revision from automake
+v1.16.1
+
+..
+
+.. bpo: 34585
+.. date: 2018-09-18-16-28-31
+.. nonce: CGMu0h
+.. section: Build
+
+Check for floating-point byte order in configure.ac using compilation tests
+instead of executing code, so that these checks work in cross-compiled
+builds.
+
+..
+
+.. bpo: 34710
+.. date: 2018-09-17-13-56-12
+.. nonce: ARqIAK
+.. section: Build
+
+Fixed SSL module build with OpenSSL & pedantic CFLAGS.
+
+..
+
+.. bpo: 34582
+.. date: 2018-09-14-09-53-21
+.. nonce: j3omgk
+.. section: Build
+
+Add JUnit XML output for regression tests and update Azure DevOps builds.
+
+..
+
+.. bpo: 34081
+.. date: 2018-09-06-07-15-20
+.. nonce: cuSTnH
+.. section: Build
+
+Make Sphinx warnings as errors in the Docs Makefile.
+
+..
+
+.. bpo: 34555
+.. date: 2018-08-31-19-41-09
+.. nonce: dfQcnm
+.. section: Build
+
+Fix for case where it was not possible to have both
+``HAVE_LINUX_VM_SOCKETS_H`` and ``HAVE_SOCKADDR_ALG`` be undefined.
+
+..
+
+.. bpo: 33015
+.. date: 2018-08-24-09-48-25
+.. nonce: s21y74
+.. section: Build
+
+Fix an undefined behaviour in the pthread implementation of
+:c:func:`PyThread_start_new_thread`: add a function wrapper to always return
+``NULL``.
+
+..
+
+.. bpo: 34245
+.. date: 2018-07-27-09-52-48
+.. nonce: bBV0NI
+.. section: Build
+
+The Python shared library is now installed with write permission (mode
+0755), which is the standard way of installing such libraries.
+
+..
+
+.. bpo: 34121
+.. date: 2018-07-15-16-49-06
+.. nonce: 74G_lo
+.. section: Build
+
+Fix detection of C11 atomic support on clang.
+
+..
+
+.. bpo: 32430
+.. date: 2018-07-10-21-33-25
+.. nonce: UN3Nk8
+.. section: Build
+
+Rename Modules/Setup.dist to Modules/Setup, and remove the necessity to copy
+the former manually to the latter when updating the local source tree.
+
+..
+
+.. bpo: 30345
+.. date: 2018-06-15-18-18-16
+.. nonce: j-xRE1
+.. section: Build
+
+Add -g to LDFLAGS when compiling with LTO to get debug symbols.
+
+..
+
+.. bpo: 5755
+.. date: 2018-06-04-21-34-34
+.. nonce: 65GmCj
+.. section: Build
+
+Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from ``OPT``. This
+option emitted annoying warnings when building extension modules written in
+C++.
+
+..
+
+.. bpo: 33614
+.. date: 2018-05-28-11-40-22
+.. nonce: 28e0sE
+.. section: Build
+
+Ensures module definition files for the stable ABI on Windows are correctly
+regenerated.
+
+..
+
+.. bpo: 33648
+.. date: 2018-05-25-13-05-51
+.. nonce: bJ4JZH
+.. section: Build
+
+The --with-c-locale-warning configuration flag has been removed. It has had
+no effect for about a year.
+
+..
+
+.. bpo: 33522
+.. date: 2018-05-15-12-44-50
+.. nonce: mJoNcA
+.. section: Build
+
+Enable CI builds on Visual Studio Team Services at
+https://python.visualstudio.com/cpython
+
+..
+
+.. bpo: 33512
+.. date: 2018-05-15-02-07-49
+.. nonce: X4Fy1Q
+.. section: Build
+
+configure's check for "long double" has been simplified
+
+..
+
+.. bpo: 33483
+.. date: 2018-05-13-17-21-54
+.. nonce: WOs-en
+.. section: Build
+
+C compiler is now correctly detected from the standard environment
+variables. --without-gcc and --with-icc options have been removed.
+
+..
+
+.. bpo: 33394
+.. date: 2018-04-30-17-36-46
+.. nonce: _Vdi4t
+.. section: Build
+
+Enable the verbose build for extension modules, when GNU make is passed
+macros on the command line.
+
+..
+
+.. bpo: 33393
+.. date: 2018-04-30-17-19-37
+.. nonce: HkVCqI
+.. section: Build
+
+Update config.guess and config.sub files.
+
+..
+
+.. bpo: 33377
+.. date: 2018-04-30-16-53-00
+.. nonce: QBh6vP
+.. section: Build
+
+Add new triplets for mips r6 and riscv variants (used in extension
+suffixes).
+
+..
+
+.. bpo: 32232
+.. date: 2018-04-17-00-38-19
+.. nonce: o7G_UO
+.. section: Build
+
+By default, modules configured in `Modules/Setup` are no longer built with
+`-DPy_BUILD_CORE`. Instead, modules that specifically need that preprocessor
+definition include it in their individual entries.
+
+..
+
+.. bpo: 33182
+.. date: 2018-03-30-14-55-48
+.. nonce: CePczb
+.. section: Build
+
+The embedding tests can once again be built with clang 6.0
+
+..
+
+.. bpo: 33163
+.. date: 2018-03-28-04-15-03
+.. nonce: hfpWuU
+.. section: Build
+
+Upgrade pip to 9.0.3 and setuptools to v39.0.1.
+
+..
+
+.. bpo: 33012
+.. date: 2018-03-08-20-25-29
+.. nonce: k9Fe1q
+.. section: Build
+
+gcc 8 has added a new warning heuristic to detect invalid function casts and
+a stock python build seems to hit that warning quite often. The most common
+is the cast of a METH_NOARGS function (that uses just one argument) to a
+PyCFunction. Fix this by adding a dummy argument to all functions that
+implement METH_NOARGS.
+
+..
+
+.. bpo: 32898
+.. date: 2018-02-21-12-46-00
+.. nonce: M15bZh
+.. section: Build
+
+Fix the python debug build when using COUNT_ALLOCS.
+
+..
+
+.. bpo: 29442
+.. date: 2017-09-26-23-08-27
+.. nonce: fD8YTi
+.. section: Build
+
+Replace optparse with argparse in setup.py
+
+..
+
+.. bpo: 35890
+.. date: 2019-02-02-22-12-23
+.. nonce: ccIjHH
+.. section: Windows
+
+Fix API calling consistency of GetVersionEx and wcstok.
+
+..
+
+.. bpo: 32560
+.. date: 2019-02-02-11-02-44
+.. nonce: I5WAGW
+.. section: Windows
+
+The ``py`` launcher now forwards its ``STARTUPINFO`` structure to child
+processes.
+
+..
+
+.. bpo: 35854
+.. date: 2019-01-29-15-44-46
+.. nonce: Ww3z19
+.. section: Windows
+
+Fix EnvBuilder and --symlinks in venv on Windows
+
+..
+
+.. bpo: 35811
+.. date: 2019-01-25-12-46-36
+.. nonce: 2hU-mm
+.. section: Windows
+
+Avoid propagating venv settings when launching via py.exe
+
+..
+
+.. bpo: 35797
+.. date: 2019-01-25-12-29-14
+.. nonce: MzyOK9
+.. section: Windows
+
+Fix default executable used by the multiprocessing module
+
+..
+
+.. bpo: 35758
+.. date: 2019-01-21-05-18-14
+.. nonce: 8LsY3l
+.. section: Windows
+
+Allow building on ARM with MSVC.
+
+..
+
+.. bpo: 29734
+.. date: 2019-01-12-16-52-38
+.. nonce: 6_OJwI
+.. section: Windows
+
+Fix handle leaks in os.stat on Windows.
+
+..
+
+.. bpo: 35596
+.. date: 2019-01-08-13-56-01
+.. nonce: oFvhcm
+.. section: Windows
+
+Use unchecked PYCs for the embeddable distro to avoid zipimport
+restrictions.
+
+..
+
+.. bpo: 35596
+.. date: 2018-12-28-07-25-47
+.. nonce: P9CEY2
+.. section: Windows
+
+Fix vcruntime140.dll being added to embeddable distro multiple times.
+
+..
+
+.. bpo: 35402
+.. date: 2018-12-13-13-30-04
+.. nonce: n_mXb2
+.. section: Windows
+
+Update Windows build to use Tcl and Tk 8.6.9
+
+..
+
+.. bpo: 35401
+.. date: 2018-12-10-15-01-13
+.. nonce: 9L1onG
+.. section: Windows
+
+Updates Windows build to OpenSSL 1.1.0j
+
+..
+
+.. bpo: 34977
+.. date: 2018-12-07-10-00-38
+.. nonce: agQJbD
+.. section: Windows
+
+venv on Windows will now use a python.exe redirector rather than copying the
+actual binaries from the base environment.
+
+..
+
+.. bpo: 34977
+.. date: 2018-10-30-13-39-17
+.. nonce: 0l7_QV
+.. section: Windows
+
+Adds support for building a Windows App Store package
+
+..
+
+.. bpo: 35067
+.. date: 2018-10-25-11-29-22
+.. nonce: RHWi7W
+.. section: Windows
+
+Remove _distutils_findvs module and use vswhere.exe instead.
+
+..
+
+.. bpo: 32557
+.. date: 2018-09-25-10-39-27
+.. nonce: Rs1bf9
+.. section: Windows
+
+Allow shutil.disk_usage to take a file path on Windows
+
+..
+
+.. bpo: 34770
+.. date: 2018-09-22-11-02-35
+.. nonce: 4lEUOd
+.. section: Windows
+
+Fix a possible null pointer dereference in pyshellext.cpp.
+
+..
+
+.. bpo: 34603
+.. date: 2018-09-13-08-29-04
+.. nonce: 2AB7sc
+.. section: Windows
+
+Fix returning structs from functions produced by MSVC
+
+..
+
+.. bpo: 34581
+.. date: 2018-09-04-23-13-19
+.. nonce: lnbC0k
+.. section: Windows
+
+Guard MSVC-specific code in socketmodule.c with ``#ifdef _MSC_VER``.
+
+..
+
+.. bpo: 34532
+.. date: 2018-09-03-01-23-52
+.. nonce: N1HEbE
+.. section: Windows
+
+Fixes exit code of list version arguments for py.exe.
+
+..
+
+.. bpo: 34062
+.. date: 2018-08-21-19-28-23
+.. nonce: 3gxsA3
+.. section: Windows
+
+Fixed the '--list' and '--list-paths' arguments for the py.exe launcher
+
+..
+
+.. bpo: 34225
+.. date: 2018-07-25-16-13-12
+.. nonce: ngemNL
+.. section: Windows
+
+Ensure INCLUDE and LIB directories do not end with a backslash.
+
+..
+
+.. bpo: 34011
+.. date: 2018-07-11-15-58-06
+.. nonce: Ho_d5T
+.. section: Windows
+
+A suite of code has been changed which copied across DLLs and init.tcl from
+the running Python location into a venv being created. These copies are
+needed only when running from a Python source build, and the copying code is
+now only run when that is the case, rather than whenever a venv is created.
+
+..
+
+.. bpo: 34006
+.. date: 2018-07-02-14-19-32
+.. nonce: 7SgBT_
+.. section: Windows
+
+Revert line length limit for Windows help docs. The line-length limit is not
+needed because the pages appear in a separate app rather than on a browser
+tab. It can also interact badly with the DPI setting.
+
+..
+
+.. bpo: 31546
+.. date: 2018-06-27-23-33-54
+.. nonce: zJlap-
+.. section: Windows
+
+Restore running PyOS_InputHook while waiting for user input at the prompt.
+The restores integration of interactive GUI windows (such as Matplotlib
+figures) with the prompt on Windows.
+
+..
+
+.. bpo: 30237
+.. date: 2018-06-25-09-33-48
+.. nonce: EybiZA
+.. section: Windows
+
+Output error when ReadConsole is canceled by CancelSynchronousIo instead of
+crashing.
+
+..
+
+.. bpo: 33895
+.. date: 2018-06-19-11-57-50
+.. nonce: zpblTy
+.. section: Windows
+
+GIL is released while calling functions that acquire Windows loader lock.
+
+..
+
+.. bpo: 33720
+.. date: 2018-06-04-09-20-53
+.. nonce: VKDXHK
+.. section: Windows
+
+Reduces maximum marshal recursion depth on release builds.
+
+..
+
+.. bpo: 29097
+.. date: 2018-05-16-11-31-17
+.. nonce: 9mqEuI
+.. section: Windows
+
+Fix bug where :meth:`datetime.fromtimestamp` erroneously throws an
+:exc:`OSError` on Windows for values between 0 and 86400. Patch by Ammar
+Askar.
+
+..
+
+.. bpo: 33316
+.. date: 2018-04-20-03-24-07
+.. nonce: 9IiJ8J
+.. section: Windows
+
+PyThread_release_lock always fails
+
+..
+
+.. bpo: 33184
+.. date: 2018-04-13-11-28-55
+.. nonce: 7YhqQE
+.. section: Windows
+
+Update Windows installer to use OpenSSL 1.1.0h.
+
+..
+
+.. bpo: 32890
+.. date: 2018-03-08-20-02-38
+.. nonce: 3jzFzY
+.. section: Windows
+
+Fix usage of GetLastError() instead of errno in os.execve() and
+os.truncate().
+
+..
+
+.. bpo: 33016
+.. date: 2018-03-07-01-33-33
+.. nonce: Z_Med0
+.. section: Windows
+
+Fix potential use of uninitialized memory in nt._getfinalpathname
+
+..
+
+.. bpo: 32903
+.. date: 2018-02-28-11-03-24
+.. nonce: 1SXY4t
+.. section: Windows
+
+Fix a memory leak in os.chdir() on Windows if the current directory is set
+to a UNC path.
+
+..
+
+.. bpo: 32901
+.. date: 2018-02-23-00-47-13
+.. nonce: mGKz5_
+.. section: Windows
+
+Update Tcl and Tk versions to 8.6.8
+
+..
+
+.. bpo: 31966
+.. date: 2018-02-19-13-54-42
+.. nonce: _Q3HPb
+.. section: Windows
+
+Fixed WindowsConsoleIO.write() for writing empty data.
+
+..
+
+.. bpo: 32409
+.. date: 2018-02-19-10-00-57
+.. nonce: nocuDg
+.. section: Windows
+
+Ensures activate.bat can handle Unicode contents.
+
+..
+
+.. bpo: 32457
+.. date: 2018-02-19-08-54-06
+.. nonce: vVP0Iz
+.. section: Windows
+
+Improves handling of denormalized executable path when launching Python.
+
+..
+
+.. bpo: 32370
+.. date: 2018-02-10-15-38-19
+.. nonce: kcKuct
+.. section: Windows
+
+Use the correct encoding for ipconfig output in the uuid module. Patch by
+Segev Finer.
+
+..
+
+.. bpo: 29248
+.. date: 2018-02-07-17-50-48
+.. nonce: Xzwj-6
+.. section: Windows
+
+Fix :func:`os.readlink` on Windows, which was mistakenly treating the
+``PrintNameOffset`` field of the reparse data buffer as a number of
+characters instead of bytes. Patch by Craig Holmquist and SSE4.
+
+..
+
+.. bpo: 1104
+.. date: 2017-11-24-12-53-54
+.. nonce: 1CWSZp
+.. section: Windows
+
+Correctly handle string length in ``msilib.SummaryInfo.GetProperty()`` to
+prevent it from truncating the last character.
+
+..
+
+.. bpo: 35401
+.. date: 2018-12-09-13-56-49
+.. nonce: n8B7X1
+.. section: macOS
+
+Update macOS installer to use OpenSSL 1.1.0j.
+
+..
+
+.. bpo: 35025
+.. date: 2018-10-18-23-54-55
+.. nonce: X4LFJg
+.. section: macOS
+
+Properly guard the use of the ``CLOCK_GETTIME`` et al. macros in
+``timemodule`` on macOS.
+
+..
+
+.. bpo: 24658
+.. date: 2018-10-17-14-36-08
+.. nonce: Naddgx
+.. section: macOS
+
+On macOS, fix reading from and writing into a file with a size larger than 2
+GiB.
+
+..
+
+.. bpo: 34405
+.. date: 2018-09-11-08-30-55
+.. nonce: UzIi0n
+.. section: macOS
+
+Update to OpenSSL 1.1.0i for macOS installer builds.
+
+..
+
+.. bpo: 33635
+.. date: 2018-07-31-09-51-01
+.. nonce: KiscE-
+.. section: macOS
+
+In macOS stat on some file descriptors (/dev/fd/3 f.e) will result in bad
+file descriptor OSError. Guard against this exception was added in is_dir,
+is_file and similar methods. DirEntry.is_dir can also throw this exception
+so _RecursiveWildcardSelector._iterate_directories was also extended with
+the same error ignoring pattern.
+
+..
+
+.. bpo: 13631
+.. date: 2018-05-16-13-25-58
+.. nonce: UIjDyY
+.. section: macOS
+
+The .editrc file in user's home directory is now processed correctly during
+the readline initialization through editline emulation on macOS.
+
+..
+
+.. bpo: 33184
+.. date: 2018-04-07-00-51-34
+.. nonce: 3j208P
+.. section: macOS
+
+Update macOS installer build to use OpenSSL 1.1.0h.
+
+..
+
+.. bpo: 32726
+.. date: 2018-03-29-06-56-12
+.. nonce: urS9uX
+.. section: macOS
+
+Build and link with private copy of Tcl/Tk 8.6 for the macOS 10.6+
+installer. The 10.9+ installer variant already does this. This means that
+the Python 3.7 provided by the python.org macOS installers no longer need or
+use any external versions of Tcl/Tk, either system-provided or
+user-installed, such as ActiveTcl.
+
+..
+
+.. bpo: 32901
+.. date: 2018-02-27-17-33-15
+.. nonce: hQu0w3
+.. section: macOS
+
+Update macOS 10.9+ installer to Tcl/Tk 8.6.8.
+
+..
+
+.. bpo: 31903
+.. date: 2017-11-01-16-53-12
+.. nonce: K6jCVG
+.. section: macOS
+
+In :mod:`_scproxy`, drop the GIL when calling into ``SystemConfiguration``
+to avoid deadlocks.
+
+..
+
+.. bpo: 35770
+.. date: 2019-01-18-13-04-30
+.. nonce: 2LxJGu
+.. section: IDLE
+
+IDLE macosx deletes Options => Configure IDLE. It previously deleted Window
+=> Zoom Height by mistake. (Zoom Height is now on the Options menu). On
+Mac, the settings dialog is accessed via Preferences on the IDLE menu.
+
+..
+
+.. bpo: 35769
+.. date: 2019-01-18-01-24-23
+.. nonce: GqsB34
+.. section: IDLE
+
+Change IDLE's new file name from 'Untitled' to 'untitled'
+
+..
+
+.. bpo: 35660
+.. date: 2019-01-04-19-14-29
+.. nonce: hMxI7N
+.. section: IDLE
+
+Fix imports in idlelib.window.
+
+..
+
+.. bpo: 35641
+.. date: 2019-01-02-22-15-01
+.. nonce: QEaANl
+.. section: IDLE
+
+Proper format `calltip` when the function has no docstring.
+
+..
+
+.. bpo: 33987
+.. date: 2018-12-31-17-04-18
+.. nonce: fD92up
+.. section: IDLE
+
+Use ttk Frame for ttk widgets.
+
+..
+
+.. bpo: 34055
+.. date: 2018-12-28-17-16-33
+.. nonce: TmmpzR
+.. section: IDLE
+
+Fix erroneous 'smart' indents and newlines in IDLE Shell.
+
+..
+
+.. bpo: 35591
+.. date: 2018-12-28-01-19-20
+.. nonce: SFpDj2
+.. section: IDLE
+
+Find Selection now works when selection not found.
+
+..
+
+.. bpo: 35196
+.. date: 2018-12-27-17-46-42
+.. nonce: 9E-xUh
+.. section: IDLE
+
+Speed up squeezer line counting.
+
+..
+
+.. bpo: 35598
+.. date: 2018-12-27-15-29-11
+.. nonce: FWOOm8
+.. section: IDLE
+
+Update config_key: use PEP 8 names and ttk widgets, make some objects
+global, and add tests.
+
+..
+
+.. bpo: 28097
+.. date: 2018-12-26-13-53-34
+.. nonce: 95I9NT
+.. section: IDLE
+
+Add Previous/Next History entries to Shell menu.
+
+..
+
+.. bpo: 35208
+.. date: 2018-12-23-17-42-11
+.. nonce: J5NOg7
+.. section: IDLE
+
+Squeezer now properly counts wrapped lines before newlines.
+
+..
+
+.. bpo: 35555
+.. date: 2018-12-21-18-44-30
+.. nonce: M58_K3
+.. section: IDLE
+
+Gray out Code Context menu entry when it's not applicable.
+
+..
+
+.. bpo: 35521
+.. date: 2018-12-20-00-14-15
+.. nonce: x32BRn
+.. section: IDLE
+
+Document the IDLE editor code context feature. Add some internal references
+within the IDLE doc.
+
+..
+
+.. bpo: 22703
+.. date: 2018-12-18-13-56-31
+.. nonce: UlsjKQ
+.. section: IDLE
+
+The Code Context menu label now toggles between Show/Hide Code Context. The
+Zoom Height menu now toggles between Zoom/Restore Height. Zoom Height has
+moved from the Window menu to the Options menu.
+
+..
+
+.. bpo: 35213
+.. date: 2018-11-12-00-20-01
+.. nonce: cqNgzT
+.. section: IDLE
+
+Where appropriate, use 'macOS' in idlelib.
+
+..
+
+.. bpo: 34864
+.. date: 2018-11-11-17-13-50
+.. nonce: cw0PvO
+.. section: IDLE
+
+On macOS, warn if the system preference "Prefer tabs when opening documents"
+is set to "Always".
+
+..
+
+.. bpo: 34864
+.. date: 2018-11-10-21-27-25
+.. nonce: Ci-G2q
+.. section: IDLE
+
+Document two IDLE on MacOS issues. The System Preferences Dock "prefer tabs
+always" setting disables some IDLE features. Menus are a bit different than
+as described for Windows and Linux.
+
+..
+
+.. bpo: 35202
+.. date: 2018-11-10-09-10-54
+.. nonce: TeJJrt
+.. section: IDLE
+
+Remove unused imports from lib/idlelib
+
+..
+
+.. bpo: 33000
+.. date: 2018-11-06-23-10-54
+.. nonce: pQasCt
+.. section: IDLE
+
+Document that IDLE's shell has no line limit. A program that runs
+indefinitely can overfill memory.
+
+..
+
+.. bpo: 23220
+.. date: 2018-11-05-23-23-00
+.. nonce: H3SAWE
+.. section: IDLE
+
+Explain how IDLE's Shell displays output.
+
+..
+
+.. bpo: 35099
+.. date: 2018-11-05-20-43-08
+.. nonce: SVOZXC
+.. section: IDLE
+
+Improve the doc about IDLE running user code. The section is renamed from
+"IDLE -- console differences" is renamed "Running user code". It mostly
+covers the implications of using custom sys.stdxxx objects.
+
+..
+
+.. bpo: 35097
+.. date: 2018-10-28-20-17-14
+.. nonce: 07tm66
+.. section: IDLE
+
+Add IDLE doc subsection explaining editor windows. Topics include opening,
+title and status bar, .py* extension, and running.
+
+..
+
+.. bpo: 35093
+.. date: 2018-10-28-15-53-51
+.. nonce: cH-tli
+.. section: IDLE
+
+Document the IDLE document viewer in the IDLE doc. Add a paragraph in "Help
+and preferences", "Help sources" subsection.
+
+..
+
+.. bpo: 35088
+.. date: 2018-10-28-00-54-32
+.. nonce: r1lJZd
+.. section: IDLE
+
+Update idlelib.help.copy_string docstring. We now use git and backporting
+instead of hg and forward merging.
+
+..
+
+.. bpo: 35087
+.. date: 2018-10-28-00-08-42
+.. nonce: G7gx2-
+.. section: IDLE
+
+Update idlelib help files for the current doc build. The main change is the
+elimination of chapter-section numbers.
+
+..
+
+.. bpo: 34548
+.. date: 2018-09-22-20-25-07
+.. nonce: 7pBzjg
+.. section: IDLE
+
+Use configured color theme for read-only text views.
+
+..
+
+.. bpo: 1529353
+.. date: 2018-08-13-16-31-24
+.. nonce: wXfQJk
+.. section: IDLE
+
+Enable "squeezing" of long outputs in the shell, to avoid performance
+degradation and to clean up the history without losing it. Squeezed outputs
+may be copied, viewed in a separate window, and "unsqueezed".
+
+..
+
+.. bpo: 34047
+.. date: 2018-08-05-15-49-55
+.. nonce: LGKsIm
+.. section: IDLE
+
+Fixed mousewheel scrolling direction on macOS.
+
+..
+
+.. bpo: 34275
+.. date: 2018-08-02-22-16-42
+.. nonce: Iu0d7t
+.. section: IDLE
+
+Make IDLE calltips always visible on Mac. Some MacOS-tk combinations need
+.update_idletasks(). Patch by Kevin Walzer.
+
+..
+
+.. bpo: 34120
+.. date: 2018-08-01-23-25-38
+.. nonce: HgsIz-
+.. section: IDLE
+
+Fix unresponsiveness after closing certain windows and dialogs.
+
+..
+
+.. bpo: 33975
+.. date: 2018-06-26-22-53-14
+.. nonce: Ow7alv
+.. section: IDLE
+
+Avoid small type when running htests. Since part of the purpose of
+human-viewed tests is to determine that widgets look right, it is important
+that they look the same for testing as when running IDLE.
+
+..
+
+.. bpo: 33905
+.. date: 2018-06-21-20-35-33
+.. nonce: W2mhiY
+.. section: IDLE
+
+Add test for idlelib.stackview.StackBrowser.
+
+..
+
+.. bpo: 33924
+.. date: 2018-06-20-22-14-07
+.. nonce: 6Rz1wt
+.. section: IDLE
+
+Change mainmenu.menudefs key 'windows' to 'window'. Every other menudef key
+is lowercase version of main menu entry.
+
+..
+
+.. bpo: 33906
+.. date: 2018-06-20-19-16-24
+.. nonce: a1lXq0
+.. section: IDLE
+
+Rename idlelib.windows as window Match Window on the main menu and remove
+last plural module name.
+
+..
+
+.. bpo: 33917
+.. date: 2018-06-20-16-27-48
+.. nonce: ZXHs8x
+.. section: IDLE
+
+Fix and document idlelib/idle_test/template.py. The revised file compiles,
+runs, and tests OK. idle_test/README.txt explains how to use it to create
+new IDLE test files.
+
+..
+
+.. bpo: 33904
+.. date: 2018-06-20-12-40-54
+.. nonce: qm0eCu
+.. section: IDLE
+
+IDLE: In rstrip, rename class RstripExtension as Rstrip
+
+..
+
+.. bpo: 33907
+.. date: 2018-06-19-22-21-27
+.. nonce: z-_B3N
+.. section: IDLE
+
+For consistency and clarity, rename an IDLE module and classes. Module
+calltips and its class CallTips are now calltip and Calltip. In module
+calltip_w, class CallTip is now CalltipWindow.
+
+..
+
+.. bpo: 33856
+.. date: 2018-06-16-21-54-45
+.. nonce: TH8WHU
+.. section: IDLE
+
+Add "help" in the welcome message of IDLE
+
+..
+
+.. bpo: 33839
+.. date: 2018-06-14-13-23-55
+.. nonce: ZlJzHa
+.. section: IDLE
+
+IDLE: refactor ToolTip and CallTip and add documentation and tests
+
+..
+
+.. bpo: 33855
+.. date: 2018-06-14-11-35-50
+.. nonce: XL230W
+.. section: IDLE
+
+Minimally test all IDLE modules. Add missing files, import module,
+instantiate classes, and check coverage. Check existing files.
+
+..
+
+.. bpo: 33656
+.. date: 2018-06-10-17-59-36
+.. nonce: 60ZqJS
+.. section: IDLE
+
+On Windows, add API call saying that tk scales for DPI. On Windows 8.1+ or
+10, with DPI compatibility properties of the Python binary unchanged, and a
+monitor resolution greater than 96 DPI, this should make text and lines
+sharper. It should otherwise have no effect.
+
+..
+
+.. bpo: 33768
+.. date: 2018-06-04-19-23-11
+.. nonce: I_2qpV
+.. section: IDLE
+
+Clicking on a context line moves that line to the top of the editor window.
+
+..
+
+.. bpo: 33763
+.. date: 2018-06-03-20-12-57
+.. nonce: URiFlE
+.. section: IDLE
+
+IDLE: Use read-only text widget for code context instead of label widget.
+
+..
+
+.. bpo: 33664
+.. date: 2018-06-03-09-13-28
+.. nonce: PZzQyL
+.. section: IDLE
+
+Scroll IDLE editor text by lines. Previously, the mouse wheel and scrollbar
+slider moved text by a fixed number of pixels, resulting in partial lines at
+the top of the editor box. The change also applies to the shell and grep
+output windows, but not to read-only text views.
+
+..
+
+.. bpo: 33679
+.. date: 2018-05-29-07-14-37
+.. nonce: MgX_Ui
+.. section: IDLE
+
+Enable theme-specific color configuration for Code Context. Use the
+Highlights tab to see the setting for built-in themes or add settings to
+custom themes.
+
+..
+
+.. bpo: 33642
+.. date: 2018-05-24-20-42-44
+.. nonce: J0VQbS
+.. section: IDLE
+
+Display up to maxlines non-blank lines for Code Context. If there is no
+current context, show a single blank line.
+
+..
+
+.. bpo: 33628
+.. date: 2018-05-23-19-51-07
+.. nonce: sLlFLO
+.. section: IDLE
+
+IDLE: Cleanup codecontext.py and its test.
+
+..
+
+.. bpo: 33564
+.. date: 2018-05-17-19-41-12
+.. nonce: XzHZJe
+.. section: IDLE
+
+IDLE's code context now recognizes async as a block opener.
+
+..
+
+.. bpo: 21474
+.. date: 2018-04-29-16-13-02
+.. nonce: bglg-F
+.. section: IDLE
+
+Update word/identifier definition from ascii to unicode. In text and entry
+boxes, this affects selection by double-click, movement left/right by
+control-left/right, and deletion left/right by control-BACKSPACE/DEL.
+
+..
+
+.. bpo: 33204
+.. date: 2018-04-02-00-28-13
+.. nonce: NBsuIv
+.. section: IDLE
+
+IDLE: consistently color invalid string prefixes. A 'u' string prefix cannot
+be paired with either 'r' or 'f'. Consistently color as much of the prefix,
+starting at the right, as is valid. Revise and extend colorizer test.
+
+..
+
+.. bpo: 32984
+.. date: 2018-03-05-01-29-05
+.. nonce: NGjgT4
+.. section: IDLE
+
+Set ``__file__`` while running a startup file. Like Python, IDLE optionally
+runs one startup file in the Shell window before presenting the first
+interactive input prompt. For IDLE, ``-s`` runs a file named in
+environmental variable :envvar:`IDLESTARTUP` or :envvar:`PYTHONSTARTUP`;
+``-r file`` runs ``file``. Python sets ``__file__`` to the startup file
+name before running the file and unsets it before the first prompt. IDLE
+now does the same when run normally, without the ``-n`` option.
+
+..
+
+.. bpo: 32940
+.. date: 2018-02-24-18-20-50
+.. nonce: ZaJ1Rf
+.. section: IDLE
+
+Simplify and rename StringTranslatePseudoMapping in pyparse.
+
+..
+
+.. bpo: 32916
+.. date: 2018-02-23-07-32-36
+.. nonce: 4MsQ5F
+.. section: IDLE
+
+Change ``str`` to ``code`` in pyparse.
+
+..
+
+.. bpo: 32905
+.. date: 2018-02-22-00-09-27
+.. nonce: VlXj0x
+.. section: IDLE
+
+Remove unused code in pyparse module.
+
+..
+
+.. bpo: 32874
+.. date: 2018-02-19-10-56-41
+.. nonce: 6pZ9Gv
+.. section: IDLE
+
+Add tests for pyparse.
+
+..
+
+.. bpo: 32837
+.. date: 2018-02-12-17-22-48
+.. nonce: -33QPl
+.. section: IDLE
+
+Using the system and place-dependent default encoding for open() is a bad
+idea for IDLE's system and location-independent files.
+
+..
+
+.. bpo: 32826
+.. date: 2018-02-12-11-05-22
+.. nonce: IxNZrk
+.. section: IDLE
+
+Add "encoding=utf-8" to open() in IDLE's test_help_about. GUI test
+test_file_buttons() only looks at initial ascii-only lines, but failed on
+systems where open() defaults to 'ascii' because readline() internally reads
+and decodes far enough ahead to encounter a non-ascii character in
+CREDITS.txt.
+
+..
+
+.. bpo: 32831
+.. date: 2018-02-12-08-08-45
+.. nonce: srDRvU
+.. section: IDLE
+
+Add docstrings and tests for codecontext.
+
+..
+
+.. bpo: 32765
+.. date: 2018-02-04-17-52-54
+.. nonce: qm0eCu
+.. section: IDLE
+
+Update configdialog General tab docstring to add new widgets to the widget
+list.
+
+..
+
+.. bpo: 35884
+.. date: 2019-02-01-12-22-37
+.. nonce: hJkMRD
+.. section: Tools/Demos
+
+Add a benchmark script for timing various ways to access variables:
+``Tools/scripts/var_access_benchmark.py``.
+
+..
+
+.. bpo: 34989
+.. date: 2018-10-15-13-22-28
+.. nonce: hU4fra
+.. section: Tools/Demos
+
+python-gdb.py now handles errors on computing the line number of a Python
+frame.
+
+..
+
+.. bpo: 20260
+.. date: 2018-07-24-00-11-44
+.. nonce: klmmqI
+.. section: Tools/Demos
+
+Argument Clinic now has non-bitwise unsigned int converters.
+
+..
+
+.. bpo: 32962
+.. date: 2018-06-14-16-23-07
+.. nonce: Q3Dwns
+.. section: Tools/Demos
+
+python-gdb now catches ``UnicodeDecodeError`` exceptions when calling
+``string()``.
+
+..
+
+.. bpo: 32962
+.. date: 2018-06-14-16-16-53
+.. nonce: 2YfdwI
+.. section: Tools/Demos
+
+python-gdb now catches ValueError on read_var(): when Python has no debug
+symbols for example.
+
+..
+
+.. bpo: 33189
+.. date: 2018-04-03-18-10-00
+.. nonce: QrXR00
+.. section: Tools/Demos
+
+:program:`pygettext.py` now recognizes only literal strings as docstrings
+and translatable strings, and rejects bytes literals and f-string
+expressions.
+
+..
+
+.. bpo: 31920
+.. date: 2018-03-26-18-54-24
+.. nonce: u_WKsT
+.. section: Tools/Demos
+
+Fixed handling directories as arguments in the ``pygettext`` script. Based
+on patch by Oleg Krasnikov.
+
+..
+
+.. bpo: 29673
+.. date: 2018-03-16-17-25-05
+.. nonce: m8QtaW
+.. section: Tools/Demos
+
+Fix pystackv and pystack gdbinit macros.
+
+..
+
+.. bpo: 25427
+.. date: 2018-03-02-16-23-31
+.. nonce: 1mgMOG
+.. section: Tools/Demos
+
+Remove the pyvenv script in favor of ``python3 -m venv`` in order to lower
+confusion as to what Python interpreter a virtual environment will be
+created for.
+
+..
+
+.. bpo: 32885
+.. date: 2018-02-20-12-16-47
+.. nonce: dL5x7C
+.. section: Tools/Demos
+
+Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disable automatic
+backup creation (files with ``~`` suffix).
+
+..
+
+.. bpo: 32222
+.. date: 2017-12-07-20-51-20
+.. nonce: hPBcGT
+.. section: Tools/Demos
+
+Fix pygettext not extracting docstrings for functions with type annotated
+arguments. Patch by Toby Harradine.
+
+..
+
+.. bpo: 31583
+.. date: 2017-09-26-10-11-21
+.. nonce: TM90_H
+.. section: Tools/Demos
+
+Fix 2to3 for using with --add-suffix option but without --output-dir option
+for relative path to files in current directory.
+
+..
+
+.. bpo: 35713
+.. date: 2019-01-22-17-04-10
+.. nonce: fmehdG
+.. section: C API
+
+The :c:func:`PyByteArray_Init` and :c:func:`PyByteArray_Fini` functions have
+been removed. They did nothing since Python 2.7.4 and Python 3.2.0, were
+excluded from the limited API (stable ABI), and were not documented.
+
+..
+
+.. bpo: 33817
+.. date: 2019-01-11-11-16-16
+.. nonce: nJ4yIj
+.. section: C API
+
+Fixed :c:func:`_PyBytes_Resize` for empty bytes objects.
+
+..
+
+.. bpo: 35322
+.. date: 2018-11-28-03-20-36
+.. nonce: Qcqsag
+.. section: C API
+
+Fix memory leak in :c:func:`PyUnicode_EncodeLocale` and
+:c:func:`PyUnicode_EncodeFSDefault` on error handling.
+
+..
+
+.. bpo: 35059
+.. date: 2018-11-23-11-52-34
+.. nonce: BLSp6y
+.. section: C API
+
+The following C macros have been converted to static inline functions:
+:c:func:`Py_INCREF`, :c:func:`Py_DECREF`, :c:func:`Py_XINCREF`,
+:c:func:`Py_XDECREF`, :c:func:`PyObject_INIT`, :c:func:`PyObject_INIT_VAR`.
+
+..
+
+.. bpo: 35296
+.. date: 2018-11-22-18-34-23
+.. nonce: nxrIQt
+.. section: C API
+
+``make install`` now also installs the internal API:
+``Include/internal/*.h`` header files.
+
+..
+
+.. bpo: 35081
+.. date: 2018-11-22-18-15-46
+.. nonce: FdK9mV
+.. section: C API
+
+Internal APIs surrounded by ``#ifdef Py_BUILD_CORE`` have been moved from
+``Include/*.h`` headers to new header files ``Include/internal/pycore_*.h``.
+
+..
+
+.. bpo: 35259
+.. date: 2018-11-22-13-52-36
+.. nonce: p07c61
+.. section: C API
+
+Conditionally declare :c:func:`Py_FinalizeEx()` (new in 3.6) based on
+Py_LIMITED_API. Patch by Arthur Neufeld.
+
+..
+
+.. bpo: 35081
+.. date: 2018-11-13-12-13-04
+.. nonce: gFd85N
+.. section: C API
+
+The :c:func:`_PyObject_GC_TRACK` and :c:func:`_PyObject_GC_UNTRACK` macros
+have been removed from the public C API.
+
+..
+
+.. bpo: 35134
+.. date: 2018-11-01-13-58-37
+.. nonce: SbZo0o
+.. section: C API
+
+Creation of a new ``Include/cpython/`` subdirectory.
+
+..
+
+.. bpo: 34725
+.. date: 2018-10-13-16-30-54
+.. nonce: j52rIS
+.. section: C API
+
+Adds _Py_SetProgramFullPath so embedders may override sys.executable
+
+..
+
+.. bpo: 34910
+.. date: 2018-10-05-17-06-49
+.. nonce: tSFrls
+.. section: C API
+
+Ensure that :c:func:`PyObject_Print` always returns ``-1`` on error. Patch
+by Zackery Spytz.
+
+..
+
+.. bpo: 34523
+.. date: 2018-08-29-18-48-47
+.. nonce: lLQ8rh
+.. section: C API
+
+Py_DecodeLocale() and Py_EncodeLocale() now use the UTF-8 encoding on
+Windows if Py_LegacyWindowsFSEncodingFlag is zero.
+
+..
+
+.. bpo: 34193
+.. date: 2018-07-24-11-57-35
+.. nonce: M6ch1Q
+.. section: C API
+
+Fix pluralization in TypeError messages in getargs.c and typeobject.c: '1
+argument' instead of '1 arguments' and '1 element' instead of '1 elements'.
+
+..
+
+.. bpo: 34127
+.. date: 2018-07-22-14-58-06
+.. nonce: qkfnHO
+.. section: C API
+
+Return grammatically correct error message based on argument count. Patch by
+Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 23927
+.. date: 2018-07-09-11-39-54
+.. nonce: pDFkxb
+.. section: C API
+
+Fixed :exc:`SystemError` in :c:func:`PyArg_ParseTupleAndKeywords` when the
+``w*`` format unit is used for optional parameter.
+
+..
+
+.. bpo: 32455
+.. date: 2018-07-08-12-06-18
+.. nonce: KVHlkz
+.. section: C API
+
+Added :c:func:`PyCompile_OpcodeStackEffectWithJump`.
+
+..
+
+.. bpo: 34008
+.. date: 2018-07-02-10-58-11
+.. nonce: COewz-
+.. section: C API
+
+Py_Main() can again be called after Py_Initialize(), as in Python 3.6.
+
+..
+
+.. bpo: 32500
+.. date: 2018-06-21-17-19-31
+.. nonce: WGCNad
+.. section: C API
+
+Fixed error messages for :c:func:`PySequence_Size`,
+:c:func:`PySequence_GetItem`, :c:func:`PySequence_SetItem` and
+:c:func:`PySequence_DelItem` called with a mapping and
+:c:func:`PyMapping_Size` called with a sequence.
+
+..
+
+.. bpo: 33818
+.. date: 2018-06-10-09-42-31
+.. nonce: 50nlf3
+.. section: C API
+
+:c:func:`PyExceptionClass_Name` will now return ``const char *`` instead of
+``char *``.
+
+..
+
+.. bpo: 33042
+.. date: 2018-03-20-21-43-09
+.. nonce: FPFp64
+.. section: C API
+
+Embedding applications may once again call PySys_ResetWarnOptions,
+PySys_AddWarnOption, and PySys_AddXOption prior to calling Py_Initialize.
+
+..
+
+.. bpo: 32374
+.. date: 2018-01-09-17-03-54
+.. nonce: SwwLoz
+.. section: C API
+
+Document that m_traverse for multi-phase initialized modules can be called
+with m_state=NULL, and add a sanity check
+
+..
+
+.. bpo: 30863
+.. date: 2017-10-12-23-24-27
+.. nonce: xrED19
+.. section: C API
+
+:c:func:`PyUnicode_AsWideChar` and :c:func:`PyUnicode_AsWideCharString` no
+longer cache the ``wchar_t*`` representation of string objects.
--- /dev/null
+.. bpo: 36052
+.. date: 2019-02-20-17-57-31
+.. nonce: l8lJSi
+.. release date: 2019-02-25
+.. section: Core and Builtins
+
+Raise a :exc:`SyntaxError` when assigning a value to `__debug__` with the
+Assignment Operator. Contributed by Stéphane Wirtel and Pablo Galindo.
+
+..
+
+.. bpo: 36012
+.. date: 2019-02-19-10-47-51
+.. nonce: xq7C9E
+.. section: Core and Builtins
+
+Doubled the speed of class variable writes. When a non-dunder attribute was
+updated, there was an unnecessary call to update slots.
+
+..
+
+.. bpo: 35942
+.. date: 2019-02-18-09-30-55
+.. nonce: oLhL2v
+.. section: Core and Builtins
+
+The error message emitted when returning invalid types from ``__fspath__``
+in interfaces that allow passing :class:`~os.PathLike` objects has been
+improved and now it does explain the origin of the error.
+
+..
+
+.. bpo: 36016
+.. date: 2019-02-17-20-23-54
+.. nonce: 5Hns-f
+.. section: Core and Builtins
+
+``gc.get_objects`` can now receive an optional parameter indicating a
+generation to get objects from. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 1054041
+.. date: 2019-02-16-00-42-32
+.. nonce: BL-WLd
+.. section: Core and Builtins
+
+When the main interpreter exits due to an uncaught KeyboardInterrupt, the
+process now exits in the appropriate manner for its parent process to detect
+that a SIGINT or ^C terminated the process. This allows shells and batch
+scripts to understand that the user has asked them to stop.
+
+..
+
+.. bpo: 35992
+.. date: 2019-02-14-12-01-44
+.. nonce: nG9e2L
+.. section: Core and Builtins
+
+Fix ``__class_getitem__()`` not being called on a class with a custom
+non-subscriptable metaclass.
+
+..
+
+.. bpo: 35993
+.. date: 2019-02-14-09-17-54
+.. nonce: Bvm3fP
+.. section: Core and Builtins
+
+Fix a crash on fork when using subinterpreters. Contributed by Stéphane
+Wirtel
+
+..
+
+.. bpo: 35991
+.. date: 2019-02-14-00-00-30
+.. nonce: xlbfSk
+.. section: Core and Builtins
+
+Fix a potential double free in Modules/_randommodule.c.
+
+..
+
+.. bpo: 35961
+.. date: 2019-02-12-20-16-34
+.. nonce: 7f7Sne
+.. section: Core and Builtins
+
+Fix a crash in slice_richcompare(): use strong references rather than stolen
+references for the two temporary internal tuples.
+
+..
+
+.. bpo: 35911
+.. date: 2019-02-06-17-50-59
+.. nonce: oiWE8
+.. section: Core and Builtins
+
+Enable the creation of cell objects by adding a ``cell.__new__`` method, and
+expose the type ``cell`` in ``Lib/types.py`` under the name CellType. Patch
+by Pierre Glaser.
+
+..
+
+.. bpo: 12822
+.. date: 2019-02-05-12-48-23
+.. nonce: 0x2NDx
+.. section: Core and Builtins
+
+Use monotonic clock for ``pthread_cond_timedwait`` when
+``pthread_condattr_setclock`` and ``CLOCK_MONOTONIC`` are available.
+
+..
+
+.. bpo: 15248
+.. date: 2019-02-04-21-10-17
+.. nonce: 2sXSZZ
+.. section: Core and Builtins
+
+The compiler emits now syntax warnings in the case when a comma is likely
+missed before tuple or list.
+
+..
+
+.. bpo: 35886
+.. date: 2019-02-01-18-12-14
+.. nonce: 0Z-C0V
+.. section: Core and Builtins
+
+The implementation of PyInterpreterState has been moved into the internal
+header files (guarded by Py_BUILD_CORE).
+
+..
+
+.. bpo: 31506
+.. date: 2019-01-22-02-06-39
+.. nonce: eJ5FpV
+.. section: Core and Builtins
+
+Clarify the errors reported when ``object.__new__`` and ``object.__init__``
+receive more than one argument. Contributed by Sanyam Khurana.
+
+..
+
+.. bpo: 35724
+.. date: 2019-01-11-14-46-08
+.. nonce: Wv79MG
+.. section: Core and Builtins
+
+Signal-handling is now guaranteed to happen relative to the main
+interpreter.
+
+..
+
+.. bpo: 33608
+.. date: 2018-09-15-12-13-46
+.. nonce: avmvVP
+.. section: Core and Builtins
+
+We added a new internal _Py_AddPendingCall() that operates relative to the
+provided interpreter. This allows us to use the existing implementation to
+ask another interpreter to do work that cannot be done in the current
+interpreter, like decref an object the other interpreter owns. The existing
+Py_AddPendingCall() only operates relative to the main interpreter.
+
+..
+
+.. bpo: 33989
+.. date: 2018-08-08-20-52-55
+.. nonce: TkLBui
+.. section: Core and Builtins
+
+Fix a possible crash in :meth:`list.sort` when sorting objects with
+``ob_type->tp_richcompare == NULL``. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 35512
+.. date: 2019-02-24-00-04-10
+.. nonce: eWDjCJ
+.. section: Library
+
+:func:`unittest.mock.patch.dict` used as a decorator with string target
+resolves the target during function call instead of during decorator
+construction. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 36018
+.. date: 2019-02-21-15-47-00
+.. nonce: qt7QUe
+.. section: Library
+
+Add statistics.NormalDist, a tool for creating and manipulating normal
+distributions of random variable. Features a composite class that treats
+the mean and standard deviation of measurement data as single entity.
+
+..
+
+.. bpo: 35904
+.. date: 2019-02-16-00-55-52
+.. nonce: V88MCD
+.. section: Library
+
+Added statistics.fmean() as a faster, floating point variant of the existing
+mean() function.
+
+..
+
+.. bpo: 35918
+.. date: 2019-02-11-16-23-10
+.. nonce: oGDlpT
+.. section: Library
+
+Removed broken ``has_key`` method from
+multiprocessing.managers.SyncManager.dict. Contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 18283
+.. date: 2019-02-11-09-24-08
+.. nonce: BT3Jhc
+.. section: Library
+
+Add support for bytes to :func:`shutil.which`.
+
+..
+
+.. bpo: 35960
+.. date: 2019-02-10-20-57-12
+.. nonce: bh-6Ja
+.. section: Library
+
+Fix :func:`dataclasses.field` throwing away empty mapping objects passed as
+metadata.
+
+..
+
+.. bpo: 35500
+.. date: 2019-02-10-00-00-13
+.. nonce: 1HOMmo
+.. section: Library
+
+Write expected and actual call parameters on separate lines in
+:meth:`unittest.mock.Mock.assert_called_with` assertion errors. Contributed
+by Susan Su.
+
+..
+
+.. bpo: 35931
+.. date: 2019-02-07-16-22-50
+.. nonce: _63i7B
+.. section: Library
+
+The :mod:`pdb` ``debug`` command now gracefully handles syntax errors.
+
+..
+
+.. bpo: 24209
+.. date: 2019-02-06-01-40-55
+.. nonce: awtwPD
+.. section: Library
+
+In http.server script, rely on getaddrinfo to bind to preferred address
+based on the bind parameter. Now default bind or binding to a name may bind
+to IPv6 or dual-stack, depending on the environment.
+
+..
+
+.. bpo: 35321
+.. date: 2019-02-02-01-53-36
+.. nonce: 1Y4DU4
+.. section: Library
+
+Set ``__spec__.origin`` of ``_frozen_importlib`` to frozen so that it
+matches the behavior of ``_frozen_importlib_external``. Patch by Nina
+Zakharenko.
+
+..
+
+.. bpo: 35378
+.. date: 2019-01-21-02-15-20
+.. nonce: 4oF03i
+.. section: Library
+
+Fix a reference issue inside :class:`multiprocessing.Pool` that caused the
+pool to remain alive if it was deleted without being closed or terminated
+explicitly. A new strong reference is added to the pool iterators to link
+the lifetime of the pool to the lifetime of its iterators so the pool does
+not get destroyed if a pool iterator is still alive.
+
+..
+
+.. bpo: 34294
+.. date: 2019-01-14-11-53-10
+.. nonce: 3JFdg2
+.. section: Library
+
+re module, fix wrong capturing groups in rare cases. :func:`re.search`,
+:func:`re.findall`, :func:`re.sub` and other functions that scan through
+string looking for a match, should reset capturing groups between two match
+attempts. Patch by Ma Lin.
+
+..
+
+.. bpo: 35615
+.. date: 2018-12-30-20-00-05
+.. nonce: Uz1SVh
+.. section: Library
+
+:mod:`weakref`: Fix a RuntimeError when copying a WeakKeyDictionary or a
+WeakValueDictionary, due to some keys or values disappearing while
+iterating.
+
+..
+
+.. bpo: 35606
+.. date: 2018-12-29-21-59-03
+.. nonce: NjGjou
+.. section: Library
+
+Implement :func:`math.prod` as analogous function to :func:`sum` that
+returns the product of a 'start' value (default: 1) times an iterable of
+numbers. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 32417
+.. date: 2018-12-04-13-35-36
+.. nonce: _Y9SKM
+.. section: Library
+
+Performing arithmetic between :class:`datetime.datetime` subclasses and
+:class:`datetime.timedelta` now returns an object of the same type as the
+:class:`datetime.datetime` subclass. As a result,
+:meth:`datetime.datetime.astimezone` and alternate constructors like
+:meth:`datetime.datetime.now` and :meth:`datetime.fromtimestamp` called with
+a ``tz`` argument now *also* retain their subclass.
+
+..
+
+.. bpo: 35153
+.. date: 2018-11-03-12-38-03
+.. nonce: 009pdF
+.. section: Library
+
+Add *headers* optional keyword-only parameter to
+:class:`xmlrpc.client.ServerProxy`, :class:`xmlrpc.client.Transport` and
+:class:`xmlrpc.client.SafeTransport`. Patch by Cédric Krier.
+
+..
+
+.. bpo: 34572
+.. date: 2018-09-05-03-02-32
+.. nonce: ayisd2
+.. section: Library
+
+Fix C implementation of pickle.loads to use importlib's locking mechanisms,
+and thereby avoid using partially loaded modules. Patch by Tim Burgess.
+
+..
+
+.. bpo: 36083
+.. date: 2019-02-24-12-40-13
+.. nonce: JX7zbv
+.. section: Documentation
+
+Fix formatting of --check-hash-based-pycs options in the manpage Synopsis.
+
+..
+
+.. bpo: 36007
+.. date: 2019-02-15-15-33-41
+.. nonce: OTFrza
+.. section: Documentation
+
+Bump minimum sphinx version to 1.8. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 22062
+.. date: 2018-07-28-12-41-01
+.. nonce: TaN2hn
+.. section: Documentation
+
+Update documentation and docstrings for pathlib. Original patch by Mike
+Short.
+
+..
+
+.. bpo: 27313
+.. date: 2019-02-24-01-58-38
+.. nonce: Sj9veH
+.. section: Tests
+
+Avoid test_ttk_guionly ComboboxTest failure with macOS Cocoa Tk.
+
+..
+
+.. bpo: 36019
+.. date: 2019-02-21-14-23-51
+.. nonce: zS_OUi
+.. section: Tests
+
+Add test.support.TEST_HTTP_URL and replace references of
+http://www.example.com by this new constant. Contributed by Stéphane Wirtel.
+
+..
+
+.. bpo: 36037
+.. date: 2019-02-19-15-21-14
+.. nonce: 75wG9_
+.. section: Tests
+
+Fix test_ssl for strict OpenSSL configuration like RHEL8 strict crypto
+policy. Use older TLS version for minimum TLS version of the server SSL
+context if needed, to test TLS version older than default minimum TLS
+version.
+
+..
+
+.. bpo: 35798
+.. date: 2019-02-16-15-19-31
+.. nonce: JF16MP
+.. section: Tests
+
+Added :func:`test.support.check_syntax_warning`.
+
+..
+
+.. bpo: 35505
+.. date: 2019-02-12-01-33-08
+.. nonce: N9ba_K
+.. section: Tests
+
+Make test_imap4_host_default_value independent on whether the local IMAP
+server is running.
+
+..
+
+.. bpo: 35917
+.. date: 2019-02-06-18-06-16
+.. nonce: -Clv1L
+.. section: Tests
+
+multiprocessing: provide unit tests for SyncManager and SharedMemoryManager
+classes + all the shareable types which are supposed to be supported by
+them. (patch by Giampaolo Rodola)
+
+..
+
+.. bpo: 35704
+.. date: 2019-01-10-09-14-58
+.. nonce: FLglYo
+.. section: Tests
+
+Skip ``test_shutil.test_unpack_archive_xztar`` to prevent a MemoryError on
+32-bit AIX when MAXDATA setting is less than 0x20000000.
+
+Patch by Michael Felt (aixtools)
+
+..
+
+.. bpo: 34720
+.. date: 2018-12-26-12-31-16
+.. nonce: T268vz
+.. section: Tests
+
+Assert m_state != NULL to mimic GC traversal functions that do not correctly
+handle module creation when the module state has not been created.
+
+..
+
+.. bpo: 35976
+.. date: 2019-02-11-20-07-43
+.. nonce: toap7O
+.. section: Windows
+
+Added ARM build support to Windows build files in PCBuild.
+
+..
+
+.. bpo: 35692
+.. date: 2019-02-02-16-23-57
+.. nonce: cIiiE9
+.. section: Windows
+
+``pathlib`` no longer raises when checking file and directory existence on
+drives that are not ready
+
+..
+
+.. bpo: 35872
+.. date: 2019-02-02-15-57-19
+.. nonce: Bba2n7
+.. section: Windows
+
+Uses the base Python executable when invoking venv in a virtual environment
+
+..
+
+.. bpo: 35873
+.. date: 2019-02-02-15-56-50
+.. nonce: UW-qS9
+.. section: Windows
+
+Prevents venv paths being inherited by child processes
+
+..
+
+.. bpo: 35299
+.. date: 2019-02-02-14-47-12
+.. nonce: 1rgEzd
+.. section: Windows
+
+Fix sysconfig detection of the source directory and distutils handling of
+pyconfig.h during PGO profiling
+
+..
+
+.. bpo: 24310
+.. date: 2019-02-23-22-31-20
+.. nonce: j_vJQl
+.. section: IDLE
+
+IDLE -- Document settings dialog font tab sample.
+
+..
+
+.. bpo: 35833
+.. date: 2019-02-08-22-14-24
+.. nonce: XKFRvF
+.. section: IDLE
+
+Revise IDLE doc for control codes sent to Shell. Add a code example block.
+
+..
+
+.. bpo: 35689
+.. date: 2019-01-08-17-51-44
+.. nonce: LlaqR8
+.. section: IDLE
+
+Add docstrings and unittests for colorizer.py.
--- /dev/null
+.. bpo: 36216
+.. date: 2019-03-06-09-38-40
+.. nonce: 6q1m4a
+.. release date: 2019-03-25
+.. section: Security
+
+Changes urlsplit() to raise ValueError when the URL contains characters that
+decompose under IDNA encoding (NFKC-normalization) into characters that
+affect how the URL is parsed.
+
+..
+
+.. bpo: 35121
+.. date: 2018-10-31-15-39-17
+.. nonce: EgHv9k
+.. section: Security
+
+Don't send cookies of domain A without Domain attribute to domain B when
+domain A is a suffix match of domain B while using a cookiejar with
+:class:`http.cookiejar.DefaultCookiePolicy` policy. Patch by Karthikeyan
+Singaravelan.
+
+..
+
+.. bpo: 36421
+.. date: 2019-03-24-21-33-22
+.. nonce: gJ2Pv9
+.. section: Core and Builtins
+
+Fix a possible double decref in _ctypes.c's ``PyCArrayType_new()``.
+
+..
+
+.. bpo: 36412
+.. date: 2019-03-23-19-51-09
+.. nonce: C7acGn
+.. section: Core and Builtins
+
+Fix a possible crash when creating a new dictionary.
+
+..
+
+.. bpo: 36398
+.. date: 2019-03-21-22-19-38
+.. nonce: B_jXGe
+.. section: Core and Builtins
+
+Fix a possible crash in ``structseq_repr()``.
+
+..
+
+.. bpo: 36256
+.. date: 2019-03-21-00-24-18
+.. nonce: OZHa0t
+.. section: Core and Builtins
+
+Fix bug in parsermodule when parsing a state in a DFA that has two or more
+arcs with labels of the same type. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 36365
+.. date: 2019-03-19-15-58-23
+.. nonce: jHaErz
+.. section: Core and Builtins
+
+repr(structseq) is no longer limited to 512 bytes.
+
+..
+
+.. bpo: 36374
+.. date: 2019-03-19-15-46-42
+.. nonce: EWKMZE
+.. section: Core and Builtins
+
+Fix a possible null pointer dereference in ``merge_consts_recursive()``.
+Patch by Zackery Spytz.
+
+..
+
+.. bpo: 36236
+.. date: 2019-03-19-03-08-26
+.. nonce: 5qN9qK
+.. section: Core and Builtins
+
+At Python initialization, the current directory is no longer prepended to
+:data:`sys.path` if it has been removed.
+
+..
+
+.. bpo: 36352
+.. date: 2019-03-19-02-36-40
+.. nonce: qj2trz
+.. section: Core and Builtins
+
+Python initialization now fails with an error, rather than silently
+truncating paths, if a path is too long.
+
+..
+
+.. bpo: 36301
+.. date: 2019-03-19-00-54-31
+.. nonce: xvOCJb
+.. section: Core and Builtins
+
+Python initialization now fails if decoding ``pybuilddir.txt`` configuration
+file fails at startup.
+
+..
+
+.. bpo: 36333
+.. date: 2019-03-18-10-56-53
+.. nonce: 4dqemZ
+.. section: Core and Builtins
+
+Fix leak in _PyRuntimeState_Fini. Contributed by Stéphane Wirtel.
+
+..
+
+.. bpo: 36332
+.. date: 2019-03-18-09-27-54
+.. nonce: yEC-Vz
+.. section: Core and Builtins
+
+The builtin :func:`compile` can now handle AST objects that contain
+assignment expressions. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 36282
+.. date: 2019-03-13-22-47-28
+.. nonce: zs7RKP
+.. section: Core and Builtins
+
+Improved error message for too much positional arguments in some builtin
+functions.
+
+..
+
+.. bpo: 30040
+.. date: 2019-03-11-22-30-56
+.. nonce: W9z8X7
+.. section: Core and Builtins
+
+New empty dict uses fewer memory for now. It used more memory than empty
+dict created by ``dict.clear()``. And empty dict creation and deletion is
+about 2x faster. Patch by Inada Naoki.
+
+..
+
+.. bpo: 36262
+.. date: 2019-03-11-15-37-33
+.. nonce: v3N6Fz
+.. section: Core and Builtins
+
+Fix an unlikely memory leak on conversion from string to float in the
+function ``_Py_dg_strtod()`` used by ``float(str)``, ``complex(str)``,
+:func:`pickle.load`, :func:`marshal.load`, etc.
+
+..
+
+.. bpo: 36252
+.. date: 2019-03-09-15-47-05
+.. nonce: sCQFKq
+.. section: Core and Builtins
+
+Update Unicode databases to version 12.0.0.
+
+..
+
+.. bpo: 36218
+.. date: 2019-03-07-13-05-43
+.. nonce: dZemNt
+.. section: Core and Builtins
+
+Fix a segfault occurring when sorting a list of heterogeneous values. Patch
+contributed by Rémi Lapeyre and Elliot Gorokhovsky.
+
+..
+
+.. bpo: 36188
+.. date: 2019-03-04-18-05-31
+.. nonce: EuUZNz
+.. section: Core and Builtins
+
+Cleaned up left-over vestiges of Python 2 unbound method handling in method
+objects and documentation. Patch by Martijn Pieters
+
+..
+
+.. bpo: 36124
+.. date: 2019-03-01-13-48-01
+.. nonce: Blzxq1
+.. section: Core and Builtins
+
+Add a new interpreter-specific dict and expose it in the C-API via
+PyInterpreterState_GetDict(). This parallels PyThreadState_GetDict().
+However, extension modules should continue using PyModule_GetState() for
+their own internal per-interpreter state.
+
+..
+
+.. bpo: 35975
+.. date: 2019-02-27-16-49-08
+.. nonce: IescLY
+.. section: Core and Builtins
+
+Add a ``feature_version`` flag to ``ast.parse()`` (documented) and
+``compile()`` (hidden) that allows tweaking the parser to support older
+versions of the grammar. In particular, if ``feature_version`` is 5 or 6,
+the hacks for the ``async`` and ``await`` keyword from PEP 492 are
+reinstated. (For 7 or higher, these are unconditionally treated as keywords,
+but they are still special tokens rather than ``NAME`` tokens that the
+parser driver recognizes.)
+
+..
+
+.. bpo: 31904
+.. date: 2019-02-26-17-34-49
+.. nonce: R4KSj6
+.. section: Core and Builtins
+
+Use UTF-8 as the system encoding on VxWorks.
+
+..
+
+.. bpo: 36048
+.. date: 2019-02-20-08-51-04
+.. nonce: I3LJt9
+.. section: Core and Builtins
+
+The :meth:`~object.__index__` special method will be used instead of
+:meth:`~object.__int__` for implicit conversion of Python numbers to C
+integers. Using the ``__int__()`` method in implicit conversions has been
+deprecated.
+
+..
+
+.. bpo: 35808
+.. date: 2019-02-11-00-50-03
+.. nonce: M12CMH
+.. section: Core and Builtins
+
+Retire pgen and use a modified version of pgen2 to generate the parser.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 36401
+.. date: 2019-03-23-10-25-07
+.. nonce: hYpVBS
+.. section: Library
+
+The class documentation created by pydoc now has a separate section for
+readonly properties.
+
+..
+
+.. bpo: 36320
+.. date: 2019-03-18-01-08-14
+.. nonce: -06b9_
+.. section: Library
+
+The typing.NamedTuple() class has deprecated the _field_types attribute in
+favor of the __annotations__ attribute which carried the same information.
+Also, both attributes were converted from OrderedDict to a regular dict.
+
+..
+
+.. bpo: 34745
+.. date: 2019-03-17-16-43-29
+.. nonce: nOfm7_
+.. section: Library
+
+Fix :mod:`asyncio` ssl memory issues caused by circular references
+
+..
+
+.. bpo: 36324
+.. date: 2019-03-17-01-17-45
+.. nonce: dvNrRe
+.. section: Library
+
+Add method to statistics.NormalDist for computing the inverse cumulative
+normal distribution.
+
+..
+
+.. bpo: 36321
+.. date: 2019-03-16-13-40-59
+.. nonce: s6crQx
+.. section: Library
+
+collections.namedtuple() misspelled the name of an attribute. To be
+consistent with typing.NamedTuple, the attribute name should have been
+"_field_defaults" instead of "_fields_defaults". For backwards
+compatibility, both spellings are now created. The misspelled version may
+be removed in the future.
+
+..
+
+.. bpo: 36297
+.. date: 2019-03-15-21-41-22
+.. nonce: Gz9ZfU
+.. section: Library
+
+"unicode_internal" codec is removed. It was deprecated since Python 3.3.
+Patch by Inada Naoki.
+
+..
+
+.. bpo: 36298
+.. date: 2019-03-15-13-54-07
+.. nonce: amEVK2
+.. section: Library
+
+Raise ModuleNotFoundError in pyclbr when a module can't be found. Thanks to
+'mental' for the bug report.
+
+..
+
+.. bpo: 36268
+.. date: 2019-03-14-16-25-17
+.. nonce: MDXLw6
+.. section: Library
+
+Switch the default format used for writing tars with mod:`tarfile` to the
+modern POSIX.1-2001 pax standard, from the vendor-specific GNU. Contributed
+by C.A.M. Gerlach.
+
+..
+
+.. bpo: 36285
+.. date: 2019-03-14-01-09-59
+.. nonce: G-usj8
+.. section: Library
+
+Fix integer overflows in the array module. Patch by Stephan Hohe.
+
+..
+
+.. bpo: 31904
+.. date: 2019-03-13-14-55-02
+.. nonce: 834kfY
+.. section: Library
+
+Add _signal module support for VxWorks.
+
+..
+
+.. bpo: 36272
+.. date: 2019-03-13-14-14-36
+.. nonce: f3l2IG
+.. section: Library
+
+:mod:`logging` does not silently ignore RecursionError anymore. Patch
+contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 36280
+.. date: 2019-03-12-21-02-55
+.. nonce: mOd3iH
+.. section: Library
+
+Add a kind field to ast.Constant. It is 'u' if the literal has a 'u' prefix
+(i.e. a Python 2 style unicode literal), else None.
+
+..
+
+.. bpo: 35931
+.. date: 2019-03-11-22-06-36
+.. nonce: Qp_Tbe
+.. section: Library
+
+The :mod:`pdb` ``debug`` command now gracefully handles all exceptions.
+
+..
+
+.. bpo: 36251
+.. date: 2019-03-09-18-01-24
+.. nonce: zOp9l0
+.. section: Library
+
+Fix format strings used for stderrprinter and re.Match reprs. Patch by
+Stephan Hohe.
+
+..
+
+.. bpo: 36235
+.. date: 2019-03-08-13-32-21
+.. nonce: _M72wU
+.. section: Library
+
+Fix ``CFLAGS`` in ``customize_compiler()`` of ``distutils.sysconfig``: when
+the ``CFLAGS`` environment variable is defined, don't override ``CFLAGS``
+variable with the ``OPT`` variable anymore. Initial patch written by David
+Malcolm.
+
+..
+
+.. bpo: 35807
+.. date: 2019-03-06-13-21-33
+.. nonce: W7mmu3
+.. section: Library
+
+Update ensurepip to install pip 19.0.3 and setuptools 40.8.0.
+
+..
+
+.. bpo: 36139
+.. date: 2019-03-06-13-07-29
+.. nonce: 6kedum
+.. section: Library
+
+Release GIL when closing :class:`~mmap.mmap` objects.
+
+..
+
+.. bpo: 36179
+.. date: 2019-03-04-10-42-46
+.. nonce: jEyuI-
+.. section: Library
+
+Fix two unlikely reference leaks in _hashopenssl. The leaks only occur in
+out-of-memory cases.
+
+..
+
+.. bpo: 36169
+.. date: 2019-03-03-11-37-09
+.. nonce: 8nWJy7
+.. section: Library
+
+Add overlap() method to statistics.NormalDist. Computes the overlapping
+coefficient for two normal distributions.
+
+..
+
+.. bpo: 36103
+.. date: 2019-03-01-16-10-01
+.. nonce: n6VgXL
+.. section: Library
+
+Default buffer size used by ``shutil.copyfileobj()`` is changed from 16 KiB
+to 64 KiB on non-Windows platform to reduce system call overhead.
+Contributed by Inada Naoki.
+
+..
+
+.. bpo: 36130
+.. date: 2019-02-26-22-41-38
+.. nonce: _BnZOo
+.. section: Library
+
+Fix ``pdb`` with ``skip=...`` when stepping into a frame without a
+``__name__`` global. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 35652
+.. date: 2019-02-26-11-34-44
+.. nonce: 6KRJu_
+.. section: Library
+
+shutil.copytree(copy_function=...) erroneously pass DirEntry instead of a
+path string.
+
+..
+
+.. bpo: 35178
+.. date: 2019-02-25-23-04-00
+.. nonce: NA_rXa
+.. section: Library
+
+Ensure custom :func:`warnings.formatwarning` function can receive `line` as
+positional argument. Based on patch by Tashrif Billah.
+
+..
+
+.. bpo: 36106
+.. date: 2019-02-25-13-21-43
+.. nonce: VuhEiQ
+.. section: Library
+
+Resolve potential name clash with libm's sinpi(). Patch by Dmitrii
+Pasechnik.
+
+..
+
+.. bpo: 36091
+.. date: 2019-02-23-06-49-06
+.. nonce: 26o4Lc
+.. section: Library
+
+Clean up reference to async generator in Lib/types. Patch by Henry Chen.
+
+..
+
+.. bpo: 36043
+.. date: 2019-02-19-19-53-46
+.. nonce: l867v0
+.. section: Library
+
+:class:`FileCookieJar` supports :term:`path-like object`. Contributed by
+Stéphane Wirtel
+
+..
+
+.. bpo: 35899
+.. date: 2019-02-16-07-11-02
+.. nonce: cjfn5a
+.. section: Library
+
+Enum has been fixed to correctly handle empty strings and strings with
+non-Latin characters (ie. 'α', 'א') without crashing. Original patch
+contributed by Maxwell. Assisted by Stéphane Wirtel.
+
+..
+
+.. bpo: 21269
+.. date: 2019-02-10-16-49-16
+.. nonce: Fqi7VH
+.. section: Library
+
+Add ``args`` and ``kwargs`` properties to mock call objects. Contributed by
+Kumar Akshay.
+
+..
+
+.. bpo: 30670
+.. date: 2019-02-06-12-07-46
+.. nonce: yffB3F
+.. section: Library
+
+`pprint.pp` has been added to pretty-print objects with dictionary keys
+being sorted with their insertion order by default. Parameter *sort_dicts*
+has been added to `pprint.pprint`, `pprint.pformat` and
+`pprint.PrettyPrinter`. Contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 35843
+.. date: 2019-01-28-10-19-40
+.. nonce: 7rXGQE
+.. section: Library
+
+Implement ``__getitem__`` for ``_NamespacePath``. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 35802
+.. date: 2019-01-21-13-56-55
+.. nonce: 6633PE
+.. section: Library
+
+Clean up code which checked presence of ``os.stat`` / ``os.lstat`` /
+``os.chmod`` which are always present. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 35715
+.. date: 2019-01-11-08-47-58
+.. nonce: Wi3gl0
+.. section: Library
+
+Librates the return value of a ProcessPoolExecutor _process_worker after
+it's no longer needed to free memory
+
+..
+
+.. bpo: 35493
+.. date: 2019-01-09-23-43-08
+.. nonce: kEcRGE
+.. section: Library
+
+Use :func:`multiprocessing.connection.wait` instead of polling each 0.2
+seconds for worker updates in :class:`multiprocessing.Pool`. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 35661
+.. date: 2019-01-05-16-16-20
+.. nonce: H_UOXc
+.. section: Library
+
+Store the venv prompt in pyvenv.cfg.
+
+..
+
+.. bpo: 35121
+.. date: 2018-12-30-14-35-19
+.. nonce: oWmiGU
+.. section: Library
+
+Don't set cookie for a request when the request path is a prefix match of
+the cookie's path attribute but doesn't end with "/". Patch by Karthikeyan
+Singaravelan.
+
+..
+
+.. bpo: 21478
+.. date: 2018-12-21-09-54-30
+.. nonce: 5gsXtc
+.. section: Library
+
+Calls to a child function created with :func:`unittest.mock.create_autospec`
+should propagate to the parent. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 35198
+.. date: 2018-11-09-12-45-28
+.. nonce: EJ8keW
+.. section: Library
+
+Fix C++ extension compilation on AIX
+
+..
+
+.. bpo: 36329
+.. date: 2019-03-17-20-01-41
+.. nonce: L5dJPD
+.. section: Documentation
+
+Declare the path of the Python binary for the usage of
+``Tools/scripts/serve.py`` when executing ``make -C Doc/ serve``.
+Contributed by Stéphane Wirtel
+
+..
+
+.. bpo: 36138
+.. date: 2019-03-02-00-40-57
+.. nonce: yfjNzG
+.. section: Documentation
+
+Improve documentation about converting datetime.timedelta to scalars.
+
+..
+
+.. bpo: 21314
+.. date: 2018-11-21-23-01-37
+.. nonce: PG33VT
+.. section: Documentation
+
+A new entry was added to the Core Language Section of the Programming FAQ,
+which explaines the usage of slash(/) in the signature of a function. Patch
+by Lysandros Nikolaou
+
+..
+
+.. bpo: 36234
+.. date: 2019-03-08-12-53-37
+.. nonce: NRVK6W
+.. section: Tests
+
+test_posix.PosixUidGidTests: add tests for invalid uid/gid type (str).
+Initial patch written by David Malcolm.
+
+..
+
+.. bpo: 29571
+.. date: 2019-02-28-18-33-29
+.. nonce: r6b9fr
+.. section: Tests
+
+Fix ``test_re.test_locale_flag()``: use ``locale.getpreferredencoding()``
+rather than ``locale.getlocale()`` to get the locale encoding. With some
+locales, ``locale.getlocale()`` returns the wrong encoding.
+
+..
+
+.. bpo: 36123
+.. date: 2019-02-26-12-51-35
+.. nonce: QRhhRS
+.. section: Tests
+
+Fix race condition in test_socket.
+
+..
+
+.. bpo: 36356
+.. date: 2019-03-18-23-49-15
+.. nonce: WNrwYI
+.. section: Build
+
+Fix leaks that led to build failure when configured with address sanitizer.
+
+..
+
+.. bpo: 36146
+.. date: 2019-03-01-17-49-22
+.. nonce: VeoyG7
+.. section: Build
+
+Add ``TEST_EXTENSIONS`` constant to ``setup.py`` to allow to not build test
+extensions like ``_testcapi``.
+
+..
+
+.. bpo: 36146
+.. date: 2019-02-28-18-09-01
+.. nonce: IwPJVT
+.. section: Build
+
+Fix setup.py on macOS: only add ``/usr/include/ffi`` to include directories
+of _ctypes, not for all extensions.
+
+..
+
+.. bpo: 31904
+.. date: 2019-02-21-14-48-31
+.. nonce: J82jY2
+.. section: Build
+
+Enable build system to cross-build for VxWorks RTOS.
+
+..
+
+.. bpo: 36312
+.. date: 2019-03-16-16-51-17
+.. nonce: Niwm-T
+.. section: Windows
+
+Fixed decoders for the following code pages: 50220, 50221, 50222, 50225,
+50227, 50229, 57002 through 57011, 65000 and 42.
+
+..
+
+.. bpo: 36264
+.. date: 2019-03-11-09-33-47
+.. nonce: rTzWce
+.. section: Windows
+
+Don't honor POSIX ``HOME`` in ``os.path.expanduser`` on windows. Patch by
+Anthony Sottile.
+
+..
+
+.. bpo: 24643
+.. date: 2019-02-24-07-52-39
+.. nonce: PofyiS
+.. section: Windows
+
+Fix name collisions due to ``#define timezone _timezone`` in PC/pyconfig.h.
+
+..
+
+.. bpo: 36405
+.. date: 2019-03-23-01-45-56
+.. nonce: m7Wv1F
+.. section: IDLE
+
+Use dict unpacking in idlelib.
+
+..
+
+.. bpo: 36396
+.. date: 2019-03-21-22-43-21
+.. nonce: xSTX-I
+.. section: IDLE
+
+Remove fgBg param of idlelib.config.GetHighlight(). This param was only used
+twice and changed the return type.
+
+..
+
+.. bpo: 36176
+.. date: 2019-03-10-00-07-46
+.. nonce: jk_vv6
+.. section: IDLE
+
+Fix IDLE autocomplete & calltip popup colors. Prevent conflicts with Linux
+dark themes (and slightly darken calltip background).
+
+..
+
+.. bpo: 23205
+.. date: 2019-03-06-14-47-57
+.. nonce: Vv0gfH
+.. section: IDLE
+
+For the grep module, add tests for findfiles, refactor findfiles to be a
+module-level function, and refactor findfiles to use os.walk.
+
+..
+
+.. bpo: 23216
+.. date: 2019-03-02-19-39-53
+.. nonce: ZA7H8H
+.. section: IDLE
+
+Add docstrings to IDLE search modules.
+
+..
+
+.. bpo: 36152
+.. date: 2019-02-28-18-52-40
+.. nonce: 9pkHIU
+.. section: IDLE
+
+Remove colorizer.ColorDelegator.close_when_done and the corresponding
+argument of .close(). In IDLE, both have always been None or False since
+2007.
+
+..
+
+.. bpo: 32129
+.. date: 2019-02-25-11-40-14
+.. nonce: 4qVCzD
+.. section: IDLE
+
+Avoid blurry IDLE application icon on macOS with Tk 8.6. Patch by Kevin
+Walzer.
+
+..
+
+.. bpo: 36096
+.. date: 2019-02-23-17-53-53
+.. nonce: mN5Ly3
+.. section: IDLE
+
+Refactor class variables to instance variables in colorizer.
+
+..
+
+.. bpo: 30348
+.. date: 2018-06-27-21-18-41
+.. nonce: WbaRJW
+.. section: IDLE
+
+Increase test coverage of idlelib.autocomplete by 30%. Patch by Louie
+Lu
+
+..
+
+.. bpo: 35132
+.. date: 2019-03-04-02-09-09
+.. nonce: 1R_pnL
+.. section: Tools/Demos
+
+Fix py-list and py-bt commands of python-gdb.py on gdb7.
+
+..
+
+.. bpo: 32217
+.. date: 2017-12-19-20-42-36
+.. nonce: axXcjA
+.. section: Tools/Demos
+
+Fix freeze script on Windows.
+
+..
+
+.. bpo: 36381
+.. date: 2019-03-20-22-02-40
+.. nonce: xlzDJ2
+.. section: C API
+
+Raise ``DeprecationWarning`` when '#' formats are used for building or
+parsing values without ``PY_SSIZE_T_CLEAN``.
+
+..
+
+.. bpo: 36142
+.. date: 2019-03-01-03-23-48
+.. nonce: 7F6wJd
+.. section: C API
+
+The whole coreconfig.h header is now excluded from Py_LIMITED_API. Move
+functions definitions into a new internal pycore_coreconfig.h header.
--- /dev/null
+.. bpo: 36742
+.. date: 2019-04-29-15-34-59
+.. nonce: QCUY0i
+.. release date: 2019-05-06
+.. section: Security
+
+Fixes mishandling of pre-normalization characters in urlsplit().
+
+..
+
+.. bpo: 30458
+.. date: 2019-04-10-08-53-30
+.. nonce: 51E-DA
+.. section: Security
+
+Address CVE-2019-9740 by disallowing URL paths with embedded whitespace or
+control characters through into the underlying http client request. Such
+potentially malicious header injection URLs now cause an
+http.client.InvalidURL exception to be raised.
+
+..
+
+.. bpo: 35755
+.. date: 2019-01-17-10-03-48
+.. nonce: GmllIs
+.. section: Security
+
+:func:`shutil.which` now uses ``os.confstr("CS_PATH")`` if available and if
+the :envvar:`PATH` environment variable is not set. Remove also the current
+directory from :data:`posixpath.defpath`. On Unix, :func:`shutil.which` and
+the :mod:`subprocess` module no longer search the executable in the current
+directory if the :envvar:`PATH` environment variable is not set.
+
+..
+
+.. bpo: 36722
+.. date: 2019-04-25-21-02-40
+.. nonce: 8NApVM
+.. section: Core and Builtins
+
+In debug build, import now also looks for C extensions compiled in release
+mode and for C extensions compiled in the stable ABI.
+
+..
+
+.. bpo: 32849
+.. date: 2019-04-16-11-56-12
+.. nonce: aeSg-D
+.. section: Core and Builtins
+
+Fix Python Initialization code on FreeBSD to detect properly when stdin file
+descriptor (fd 0) is invalid.
+
+..
+
+.. bpo: 36623
+.. date: 2019-04-13-02-08-44
+.. nonce: HR_xhB
+.. section: Core and Builtins
+
+Remove parser headers and related function declarations that lack
+implementations after the removal of pgen.
+
+..
+
+.. bpo: 20180
+.. date: 2019-04-12-15-49-15
+.. nonce: KUqVk7
+.. section: Core and Builtins
+
+``dict.pop()`` is now up to 33% faster thanks to Argument Clinic. Patch by
+Inada Naoki.
+
+..
+
+.. bpo: 36611
+.. date: 2019-04-12-12-32-39
+.. nonce: zbo9WQ
+.. section: Core and Builtins
+
+Debug memory allocators: disable serialno field by default from debug hooks
+on Python memory allocators to reduce the memory footprint by 5%. Enable
+:mod:`tracemalloc` to get the traceback where a memory block has been
+allocated when a fatal memory error is logged to decide where to put a
+breakpoint. Compile Python with ``PYMEM_DEBUG_SERIALNO`` defined to get back
+the field.
+
+..
+
+.. bpo: 36588
+.. date: 2019-04-11-14-36-55
+.. nonce: wejLoC
+.. section: Core and Builtins
+
+On AIX, :attr:`sys.platform` doesn't contain the major version anymore.
+Always return ``'aix'``, instead of ``'aix3'`` .. ``'aix7'``. Since older
+Python versions include the version number, it is recommended to always use
+``sys.platform.startswith('aix')``. Contributed by M. Felt.
+
+..
+
+.. bpo: 36549
+.. date: 2019-04-11-12-41-31
+.. nonce: QSp8of
+.. section: Core and Builtins
+
+Change str.capitalize to use titlecase for the first character instead of
+uppercase.
+
+..
+
+.. bpo: 36540
+.. date: 2019-04-06-20-59-19
+.. nonce: SzVUfC
+.. section: Core and Builtins
+
+Implement :pep:`570` (Python positional-only parameters). Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 36475
+.. date: 2019-04-02-20-02-22
+.. nonce: CjRps3
+.. section: Core and Builtins
+
+:c:func:`PyEval_AcquireLock` and :c:func:`PyEval_AcquireThread` now
+terminate the current thread if called while the interpreter is finalizing,
+making them consistent with :c:func:`PyEval_RestoreThread`,
+:c:func:`Py_END_ALLOW_THREADS`, and :c:func:`PyGILState_Ensure`.
+
+..
+
+.. bpo: 36504
+.. date: 2019-04-02-04-10-32
+.. nonce: k_V8Bm
+.. section: Core and Builtins
+
+Fix signed integer overflow in _ctypes.c's ``PyCArrayType_new()``.
+
+..
+
+.. bpo: 20844
+.. date: 2019-03-29-18-47-50
+.. nonce: ge-7SM
+.. section: Core and Builtins
+
+Fix running script with encoding cookie and LF line ending may fail on
+Windows.
+
+..
+
+.. bpo: 24214
+.. date: 2019-03-28-15-22-45
+.. nonce: tZ6lYU
+.. section: Core and Builtins
+
+Fixed support of the surrogatepass error handler in the UTF-8 incremental
+decoder.
+
+..
+
+.. bpo: 36452
+.. date: 2019-03-27-23-53-00
+.. nonce: xhK2lT
+.. section: Core and Builtins
+
+Changing ``dict`` keys during iteration of the dict itself, ``keys()``,
+``values()``, or ``items()`` will now be detected in certain corner cases
+where keys are deleted/added so that the number of keys isn't changed. A
+`RuntimeError` will be raised after ``len(dict)`` iterations. Contributed by
+Thomas Perl.
+
+..
+
+.. bpo: 36459
+.. date: 2019-03-27-22-35-16
+.. nonce: UAvkKp
+.. section: Core and Builtins
+
+Fix a possible double ``PyMem_FREE()`` due to tokenizer.c's ``tok_nextc()``.
+
+..
+
+.. bpo: 36433
+.. date: 2019-03-26-17-23-02
+.. nonce: -8XzZf
+.. section: Core and Builtins
+
+Fixed TypeError message in classmethoddescr_call.
+
+..
+
+.. bpo: 36430
+.. date: 2019-03-25-23-37-26
+.. nonce: sd9xxQ
+.. section: Core and Builtins
+
+Fix a possible reference leak in :func:`itertools.count`.
+
+..
+
+.. bpo: 36440
+.. date: 2019-03-25-13-45-19
+.. nonce: gkvzhi
+.. section: Core and Builtins
+
+Include node names in ``ParserError`` messages, instead of numeric IDs.
+Patch by A. Skrobov.
+
+..
+
+.. bpo: 36143
+.. date: 2019-03-20-00-37-24
+.. nonce: fnKoKo
+.. section: Core and Builtins
+
+Regenerate :mod:`keyword` from the Grammar and Tokens file using pgen. Patch
+by Pablo Galindo.
+
+..
+
+.. bpo: 18372
+.. date: 2018-12-08-03-40-43
+.. nonce: DT1nR0
+.. section: Core and Builtins
+
+Add missing :c:func:`PyObject_GC_Track` calls in the :mod:`pickle` module.
+Patch by Zackery Spytz.
+
+..
+
+.. bpo: 35952
+.. date: 2019-04-29-11-47-06
+.. nonce: 3uNuyo
+.. section: Library
+
+Fix pythoninfo when the compiler is missing.
+
+..
+
+.. bpo: 28238
+.. date: 2019-04-28-15-01-29
+.. nonce: gdk38f
+.. section: Library
+
+The ``.find*()`` methods of xml.etree.ElementTree can now search for
+wildcards like ``{*}tag`` and ``{ns}*`` that match a tag in any namespace or
+all tags in a namespace. Patch by Stefan Behnel.
+
+..
+
+.. bpo: 26978
+.. date: 2019-04-28-01-52-39
+.. nonce: Lpm-SI
+.. section: Library
+
+`pathlib.path.link_to()` is now implemented. It creates a hard link pointing
+to a path.
+
+..
+
+.. bpo: 1613500
+.. date: 2019-04-27-21-09-33
+.. nonce: Ogp4P0
+.. section: Library
+
+:class:`fileinput.FileInput` now uses the input file mode to correctly set
+the output file mode (previously it was hardcoded to ``'w'``) when
+``inplace=True`` is passed to its constructor.
+
+..
+
+.. bpo: 36734
+.. date: 2019-04-26-17-14-20
+.. nonce: p2MaiN
+.. section: Library
+
+Fix compilation of ``faulthandler.c`` on HP-UX. Initialize ``stack_t
+current_stack`` to zero using ``memset()``.
+
+..
+
+.. bpo: 13611
+.. date: 2019-04-26-10-10-34
+.. nonce: XEF4bg
+.. section: Library
+
+The xml.etree.ElementTree packages gained support for C14N 2.0
+serialisation. Patch by Stefan Behnel.
+
+..
+
+.. bpo: 36669
+.. date: 2019-04-24-17-08-45
+.. nonce: X4g0fu
+.. section: Library
+
+Add missing matrix multiplication operator support to weakref.proxy.
+
+..
+
+.. bpo: 36676
+.. date: 2019-04-20-13-10-34
+.. nonce: XF4Egb
+.. section: Library
+
+The XMLParser() in xml.etree.ElementTree provides namespace prefix context
+to the parser target if it defines the callback methods "start_ns()" and/or
+"end_ns()". Patch by Stefan Behnel.
+
+..
+
+.. bpo: 36673
+.. date: 2019-04-20-09-50-32
+.. nonce: XF4Egb
+.. section: Library
+
+The TreeBuilder and XMLPullParser in xml.etree.ElementTree gained support
+for parsing comments and processing instructions. Patch by Stefan Behnel.
+
+..
+
+.. bpo: 36650
+.. date: 2019-04-19-15-29-55
+.. nonce: _EVdrz
+.. section: Library
+
+The C version of functools.lru_cache() was treating calls with an empty
+``**kwargs`` dictionary as being distinct from calls with no keywords at
+all. This did not result in an incorrect answer, but it did trigger an
+unexpected cache miss.
+
+..
+
+.. bpo: 28552
+.. date: 2019-04-18-16-10-29
+.. nonce: MW1TLt
+.. section: Library
+
+Fix :mod:`distutils.sysconfig` if :data:`sys.executable` is ``None`` or an
+empty string: use :func:`os.getcwd` to initialize ``project_base``. Fix
+also the distutils build command: don't use :data:`sys.executable` if it is
+``None`` or an empty string.
+
+..
+
+.. bpo: 35755
+.. date: 2019-04-16-17-50-39
+.. nonce: Fg4EXb
+.. section: Library
+
+:func:`shutil.which` and :func:`distutils.spawn.find_executable` now use
+``os.confstr("CS_PATH")`` if available instead of :data:`os.defpath`, if the
+``PATH`` environment variable is not set. Moreover, don't use
+``os.confstr("CS_PATH")`` nor :data:`os.defpath` if the ``PATH`` environment
+variable is set to an empty string.
+
+..
+
+.. bpo: 25430
+.. date: 2019-04-15-12-22-09
+.. nonce: 7_8kqc
+.. section: Library
+
+improve performance of ``IPNetwork.__contains__()``
+
+..
+
+.. bpo: 30485
+.. date: 2019-04-13-23-42-33
+.. nonce: JHhjJS
+.. section: Library
+
+Path expressions in xml.etree.ElementTree can now avoid explicit namespace
+prefixes for tags (or the "{namespace}tag" notation) by passing a default
+namespace with an empty string prefix.
+
+..
+
+.. bpo: 36613
+.. date: 2019-04-12-13-52-15
+.. nonce: hqT1qn
+.. section: Library
+
+Fix :mod:`asyncio` wait() not removing callback if exception
+
+..
+
+.. bpo: 36598
+.. date: 2019-04-11-22-11-24
+.. nonce: hfzDUl
+.. section: Library
+
+Fix ``isinstance`` check for Mock objects with spec when the code is
+executed under tracing. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 18748
+.. date: 2019-04-11-16-09-42
+.. nonce: QW7upB
+.. section: Library
+
+In development mode (:option:`-X` ``dev``) and in debug build, the
+:class:`io.IOBase` destructor now logs ``close()`` exceptions. These
+exceptions are silent by default in release mode.
+
+..
+
+.. bpo: 36575
+.. date: 2019-04-09-22-40-52
+.. nonce: Vg_p92
+.. section: Library
+
+The ``_lsprof`` module now uses internal timer same to
+``time.perf_counter()`` by default. ``gettimeofday(2)`` was used on Unix.
+New timer has better resolution on most Unix platforms and timings are no
+longer impacted by system clock updates since ``perf_counter()`` is
+monotonic. Patch by Inada Naoki.
+
+..
+
+.. bpo: 33461
+.. date: 2019-04-09-14-46-28
+.. nonce: SYJM-E
+.. section: Library
+
+``json.loads`` now emits ``DeprecationWarning`` when ``encoding`` option is
+specified. Patch by Matthias Bussonnier.
+
+..
+
+.. bpo: 36559
+.. date: 2019-04-09-12-02-35
+.. nonce: LbDRrw
+.. section: Library
+
+The random module now prefers the lean internal _sha512 module over hashlib
+for seed(version=2) to optimize import time.
+
+..
+
+.. bpo: 17561
+.. date: 2019-04-09-04-08-46
+.. nonce: hOhVnh
+.. section: Library
+
+Set backlog=None as the default for socket.create_server.
+
+..
+
+.. bpo: 34373
+.. date: 2019-04-08-14-41-22
+.. nonce: lEAl_-
+.. section: Library
+
+Fix :func:`time.mktime` error handling on AIX for year before 1970.
+
+..
+
+.. bpo: 36232
+.. date: 2019-04-06-20-25-25
+.. nonce: SClmhb
+.. section: Library
+
+Improve error message when trying to open existing DBM database that
+actually doesn't exist. Patch by Marco Rougeth.
+
+..
+
+.. bpo: 36546
+.. date: 2019-04-06-14-23-00
+.. nonce: YXjbyY
+.. section: Library
+
+Add statistics.quantiles()
+
+..
+
+.. bpo: 36050
+.. date: 2019-04-05-21-29-53
+.. nonce: x9DRKE
+.. section: Library
+
+Optimized ``http.client.HTTPResponse.read()`` for large response. Patch by
+Inada Naoki.
+
+..
+
+.. bpo: 36522
+.. date: 2019-04-03-20-46-47
+.. nonce: g5x3By
+.. section: Library
+
+If *debuglevel* is set to >0 in :mod:`http.client`, print all values for
+headers with multiple values for the same header name. Patch by Matt
+Houglum.
+
+..
+
+.. bpo: 36492
+.. date: 2019-03-31-10-21-54
+.. nonce: f7vyUs
+.. section: Library
+
+Deprecated passing required arguments like *func* as keyword arguments in
+functions which should accept arbitrary keyword arguments and pass them to
+other function. Arbitrary keyword arguments (even with names "self" and
+"func") can now be passed to these functions if the required arguments are
+passed as positional arguments.
+
+..
+
+.. bpo: 27181
+.. date: 2019-03-31-01-18-52
+.. nonce: LVUWcc
+.. section: Library
+
+Add statistics.geometric_mean().
+
+..
+
+.. bpo: 30427
+.. date: 2019-03-28-21-17-08
+.. nonce: lxzvbw
+.. section: Library
+
+``os.path.normcase()`` relies on ``os.fspath()`` to check the type of its
+argument. Redundant checks have been removed from its
+``posixpath.normcase()`` and ``ntpath.normcase()`` implementations. Patch by
+Wolfgang Maier.
+
+..
+
+.. bpo: 36385
+.. date: 2019-03-27-02-09-22
+.. nonce: we2F45
+.. section: Library
+
+Stop rejecting IPv4 octets for being ambiguously octal. Leading zeros are
+ignored, and no longer are assumed to specify octal octets. Octets are
+always decimal numbers. Octets must still be no more than three digits,
+including leading zeroes.
+
+..
+
+.. bpo: 36434
+.. date: 2019-03-26-14-20-59
+.. nonce: PTdidw
+.. section: Library
+
+Errors during writing to a ZIP file no longer prevent to properly close it.
+
+..
+
+.. bpo: 36407
+.. date: 2019-03-23-17-16-15
+.. nonce: LG3aC4
+.. section: Library
+
+Fixed wrong indentation writing for CDATA section in xml.dom.minidom. Patch
+by Vladimir Surjaninov.
+
+..
+
+.. bpo: 36326
+.. date: 2019-03-22-13-47-52
+.. nonce: WCnEI5
+.. section: Library
+
+inspect.getdoc() can now find docstrings for member objects when __slots__
+is a dictionary.
+
+..
+
+.. bpo: 36366
+.. date: 2019-03-20-15-13-18
+.. nonce: n0eav_
+.. section: Library
+
+Calling ``stop()`` on an unstarted or stopped :func:`unittest.mock.patch`
+object will now return `None` instead of raising :exc:`RuntimeError`, making
+the method idempotent. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 36348
+.. date: 2019-03-18-16-16-55
+.. nonce: E0w_US
+.. section: Library
+
+The :meth:`imap.IMAP4.logout` method no longer ignores silently arbitrary
+exceptions.
+
+..
+
+.. bpo: 31904
+.. date: 2019-03-13-16-48-42
+.. nonce: 9sjd38
+.. section: Library
+
+Add time module support and fix test_time faiures for VxWorks.
+
+..
+
+.. bpo: 36227
+.. date: 2019-03-07-20-02-18
+.. nonce: i2Z1XR
+.. section: Library
+
+Added support for keyword arguments `default_namespace` and
+`xml_declaration` in functions ElementTree.tostring() and
+ElementTree.tostringlist().
+
+..
+
+.. bpo: 36004
+.. date: 2019-02-17-12-55-51
+.. nonce: hCt_KK
+.. section: Library
+
+Added new alternate constructors :meth:`datetime.date.fromisocalendar` and
+:meth:`datetime.datetime.fromisocalendar`, which construct date objects from
+ISO year, week number and weekday; these are the inverse of each class's
+``isocalendar`` method. Patch by Paul Ganssle.
+
+..
+
+.. bpo: 35936
+.. date: 2019-02-16-22-19-32
+.. nonce: Ay5WtD
+.. section: Library
+
+:mod:`modulefinder` no longer depends on the deprecated :mod:`imp` module,
+and the initializer for :class:`modulefinder.ModuleFinder` now has immutable
+default arguments. Patch by Brandt Bucher.
+
+..
+
+.. bpo: 35376
+.. date: 2019-02-13-18-56-27
+.. nonce: UFhYLj
+.. section: Library
+
+:mod:`modulefinder` correctly handles modules that have the same name as a
+bad package. Patch by Brandt Bucher.
+
+..
+
+.. bpo: 17396
+.. date: 2019-02-13-18-56-22
+.. nonce: oKRkrD
+.. section: Library
+
+:mod:`modulefinder` no longer crashes when encountering syntax errors in
+followed imports. Patch by Brandt Bucher.
+
+..
+
+.. bpo: 35934
+.. date: 2019-02-07-20-25-39
+.. nonce: QmfNmY
+.. section: Library
+
+Added :meth:`~socket.create_server()` and
+:meth:`~socket.has_dualstack_ipv6()` convenience functions to automate the
+necessary tasks usually involved when creating a server socket, including
+accepting both IPv4 and IPv6 connections on the same socket. (Contributed
+by Giampaolo Rodola in :issue:`17561`.)
+
+..
+
+.. bpo: 23078
+.. date: 2019-01-18-23-10-10
+.. nonce: l4dFoj
+.. section: Library
+
+Add support for :func:`classmethod` and :func:`staticmethod` to
+:func:`unittest.mock.create_autospec`. Initial patch by Felipe Ochoa.
+
+..
+
+.. bpo: 35416
+.. date: 2018-12-05-09-55-05
+.. nonce: XALKZG
+.. section: Library
+
+Fix potential resource warnings in distutils. Patch by Mickaël Schoentgen.
+
+..
+
+.. bpo: 25451
+.. date: 2018-11-07-23-44-25
+.. nonce: re_8db
+.. section: Library
+
+Add transparency methods to :class:`tkinter.PhotoImage`. Patch by Zackery
+Spytz.
+
+..
+
+.. bpo: 35082
+.. date: 2018-10-27-11-54-12
+.. nonce: HDj1nr
+.. section: Library
+
+Don't return deleted attributes when calling dir on a
+:class:`unittest.mock.Mock`.
+
+..
+
+.. bpo: 34547
+.. date: 2018-10-05-16-01-00
+.. nonce: abbaa
+.. section: Library
+
+:class:`wsgiref.handlers.BaseHandler` now handles abrupt client connection
+terminations gracefully. Patch by Petter Strandmark.
+
+..
+
+.. bpo: 31658
+.. date: 2018-07-30-12-00-15
+.. nonce: _bx7a_
+.. section: Library
+
+:func:`xml.sax.parse` now supports :term:`path-like <path-like object>`.
+Patch by Mickaël Schoentgen.
+
+..
+
+.. bpo: 34139
+.. date: 2018-07-18-11-25-34
+.. nonce: tKbmW7
+.. section: Library
+
+Remove stale unix datagram socket before binding
+
+..
+
+.. bpo: 33530
+.. date: 2018-05-29-18-34-53
+.. nonce: _4Q_bi
+.. section: Library
+
+Implemented Happy Eyeballs in `asyncio.create_connection()`. Added two new
+arguments, *happy_eyeballs_delay* and *interleave*, to specify Happy
+Eyeballs behavior.
+
+..
+
+.. bpo: 33291
+.. date: 2018-04-11-11-41-52
+.. nonce: -xLGf8
+.. section: Library
+
+Do not raise AttributeError when calling the inspect functions
+isgeneratorfunction, iscoroutinefunction, isasyncgenfunction on a method
+created from an arbitrary callable. Instead, return False.
+
+..
+
+.. bpo: 31310
+.. date: 2018-04-06-11-06-23
+.. nonce: eq9ky0
+.. section: Library
+
+Fix the multiprocessing.semaphore_tracker so it is reused by child processes
+
+..
+
+.. bpo: 31292
+.. date: 2017-08-30-20-27-00
+.. nonce: dKIaZb
+.. section: Library
+
+Fix ``setup.py check --restructuredtext`` for files containing ``include``
+directives.
+
+..
+
+.. bpo: 36625
+.. date: 2019-04-15-12-02-45
+.. nonce: x3LMCF
+.. section: Documentation
+
+Remove obsolete comments from docstrings in fractions.Fraction
+
+..
+
+.. bpo: 30840
+.. date: 2019-04-14-19-46-21
+.. nonce: R-JFzw
+.. section: Documentation
+
+Document relative imports
+
+..
+
+.. bpo: 36523
+.. date: 2019-04-04-19-11-47
+.. nonce: sG1Tr4
+.. section: Documentation
+
+Add docstring for io.IOBase.writelines().
+
+..
+
+.. bpo: 36425
+.. date: 2019-03-27-22-46-00
+.. nonce: kG9gx1
+.. section: Documentation
+
+New documentation translation: `Simplified Chinese
+<https://docs.python.org/zh-cn/>`_.
+
+..
+
+.. bpo: 36345
+.. date: 2019-03-26-14-58-34
+.. nonce: r2stx3
+.. section: Documentation
+
+Avoid the duplication of code from ``Tools/scripts/serve.py`` in using the
+:rst:dir:`literalinclude` directive for the basic wsgiref-based web server
+in the documentation of :mod:`wsgiref`. Contributed by Stéphane Wirtel.
+
+..
+
+.. bpo: 36345
+.. date: 2019-03-23-09-25-12
+.. nonce: L704Zv
+.. section: Documentation
+
+Using the code of the ``Tools/scripts/serve.py`` script as an example in the
+:mod:`wsgiref` documentation. Contributed by Stéphane Wirtel.
+
+..
+
+.. bpo: 36157
+.. date: 2019-03-08-15-39-47
+.. nonce: nF1pP1
+.. section: Documentation
+
+Added Documention for PyInterpreterState_Main().
+
+..
+
+.. bpo: 33043
+.. date: 2019-02-24-03-15-10
+.. nonce: 8knWTS
+.. section: Documentation
+
+Updates the docs.python.org page with the addition of a 'Contributing to
+Docs' link at the end of the page (between 'Reporting Bugs' and 'About
+Documentation'). Updates the 'Found a Bug' page with additional links and
+information in the Documentation Bugs section.
+
+..
+
+.. bpo: 35581
+.. date: 2018-12-25-12-56-57
+.. nonce: aA7r6T
+.. section: Documentation
+
+@typing.type_check_only now allows type stubs to mark functions and classes
+not available during runtime.
+
+..
+
+.. bpo: 33832
+.. date: 2018-06-15-15-57-37
+.. nonce: xBFhKw
+.. section: Documentation
+
+Add glossary entry for 'magic method'.
+
+..
+
+.. bpo: 32913
+.. date: 2018-02-22-15-48-16
+.. nonce: f3utho
+.. section: Documentation
+
+Added re.Match.groupdict example to regex HOWTO.
+
+..
+
+.. bpo: 36719
+.. date: 2019-04-26-09-02-49
+.. nonce: ys2uqH
+.. section: Tests
+
+regrtest now always detects uncollectable objects. Previously, the check was
+only enabled by ``--findleaks``. The check now also works with
+``-jN/--multiprocess N``. ``--findleaks`` becomes a deprecated alias to
+``--fail-env-changed``.
+
+..
+
+.. bpo: 36725
+.. date: 2019-04-26-04-12-29
+.. nonce: B8-ghi
+.. section: Tests
+
+When using multiprocessing mode (-jN), regrtest now better reports errors if
+a worker process fails, and it exits immediately on a worker thread failure
+or when interrupted.
+
+..
+
+.. bpo: 36454
+.. date: 2019-04-23-17-48-11
+.. nonce: 0q4lQz
+.. section: Tests
+
+Change test_time.test_monotonic() to test only the lower bound of elapsed
+time after a sleep command rather than the upper bound. This prevents
+unnecessary test failures on slow buildbots. Patch by Victor Stinner.
+
+..
+
+.. bpo: 32424
+.. date: 2019-04-21-17-55-18
+.. nonce: yDy49h
+.. section: Tests
+
+Improve test coverage for xml.etree.ElementTree. Patch by Gordon P. Hemsley.
+
+..
+
+.. bpo: 32424
+.. date: 2019-04-21-17-53-50
+.. nonce: Q4rBmn
+.. section: Tests
+
+Fix typo in test_cyclic_gc() test for xml.etree.ElementTree. Patch by Gordon
+P. Hemsley.
+
+..
+
+.. bpo: 36635
+.. date: 2019-04-15-16-55-49
+.. nonce: __FTq9
+.. section: Tests
+
+Add a new :mod:`_testinternalcapi` module to test the internal C API.
+
+..
+
+.. bpo: 36629
+.. date: 2019-04-15-11-57-39
+.. nonce: ySnaL3
+.. section: Tests
+
+Fix ``test_imap4_host_default_value()`` of ``test_imaplib``: catch also
+:data:`errno.ENETUNREACH` error.
+
+..
+
+.. bpo: 36611
+.. date: 2019-04-12-12-44-42
+.. nonce: UtorXL
+.. section: Tests
+
+Fix ``test_sys.test_getallocatedblocks()`` when :mod:`tracemalloc` is
+enabled.
+
+..
+
+.. bpo: 36560
+.. date: 2019-04-09-14-08-02
+.. nonce: _ejeOr
+.. section: Tests
+
+Fix reference leak hunting in regrtest: compute also deltas (of reference
+count, allocated memory blocks, file descriptor count) during warmup, to
+ensure that everything is initialized before starting to hunt reference
+leaks.
+
+..
+
+.. bpo: 36565
+.. date: 2019-04-08-19-01-21
+.. nonce: 2bxgtU
+.. section: Tests
+
+Fix reference hunting (``python3 -m test -R 3:3``) when Python has no
+built-in abc module.
+
+..
+
+.. bpo: 31904
+.. date: 2019-04-08-09-24-36
+.. nonce: ab03ea
+.. section: Tests
+
+Port test_resource to VxWorks: skip tests cases setting RLIMIT_FSIZE and
+RLIMIT_CPU.
+
+..
+
+.. bpo: 31904
+.. date: 2019-04-01-16-06-36
+.. nonce: peaceF
+.. section: Tests
+
+Fix test_tabnanny on VxWorks: adjust ENOENT error message.
+
+..
+
+.. bpo: 36436
+.. date: 2019-03-26-13-49-21
+.. nonce: yAtN0V
+.. section: Tests
+
+Fix ``_testcapi.pymem_buffer_overflow()``: handle memory allocation failure.
+
+..
+
+.. bpo: 31904
+.. date: 2019-03-19-17-39-25
+.. nonce: QxhhRx
+.. section: Tests
+
+Fix test_utf8_mode on VxWorks: Python always use UTF-8 on VxWorks.
+
+..
+
+.. bpo: 36341
+.. date: 2019-03-18-10-47-45
+.. nonce: UXlY0P
+.. section: Tests
+
+Fix tests that may fail with PermissionError upon calling bind() on AF_UNIX
+sockets.
+
+..
+
+.. bpo: 36747
+.. date: 2019-04-29-09-57-20
+.. nonce: 1YEyu-
+.. section: Build
+
+Remove the stale scriptsinstall Makefile target.
+
+..
+
+.. bpo: 21536
+.. date: 2019-04-25-01-51-52
+.. nonce: ACQkiC
+.. section: Build
+
+On Unix, C extensions are no longer linked to libpython except on Android
+and Cygwin.
+
+It is now possible for a statically linked Python to load a C extension
+built using a shared library Python.
+
+When Python is embedded, ``libpython`` must not be loaded with
+``RTLD_LOCAL``, but ``RTLD_GLOBAL`` instead. Previously, using
+``RTLD_LOCAL``, it was already not possible to load C extensions which were
+not linked to ``libpython``, such as C extensions of the standard library
+built by the ``*shared*`` section of ``Modules/Setup``.
+
+distutils, python-config and python-config.py have been modified.
+
+..
+
+.. bpo: 36707
+.. date: 2019-04-24-02-29-15
+.. nonce: 8ZNB67
+.. section: Build
+
+``./configure --with-pymalloc`` no longer adds the ``m`` flag to SOABI
+(sys.implementation.cache_tag). Enabling or disabling pymalloc has no impact
+on the ABI.
+
+..
+
+.. bpo: 36635
+.. date: 2019-04-16-13-58-52
+.. nonce: JKlzkf
+.. section: Build
+
+Change ``PyAPI_FUNC(type)``, ``PyAPI_DATA(type)`` and ``PyMODINIT_FUNC``
+macros of ``pyport.h`` when ``Py_BUILD_CORE_MODULE`` is defined. The
+``Py_BUILD_CORE_MODULE`` define must be now be used to build a C extension
+as a dynamic library accessing Python internals: export the PyInit_xxx()
+function in DLL exports on Windows.
+
+..
+
+.. bpo: 31904
+.. date: 2019-04-15-15-01-29
+.. nonce: 38fdkg
+.. section: Build
+
+Don't build the ``_crypt`` extension on VxWorks.
+
+..
+
+.. bpo: 36618
+.. date: 2019-04-12-19-49-10
+.. nonce: gcI9iq
+.. section: Build
+
+Add ``-fmax-type-align=8`` to CFLAGS when clang compiler is detected. The
+pymalloc memory allocator aligns memory on 8 bytes. On x86-64, clang expects
+alignment on 16 bytes by default and so uses MOVAPS instruction which can
+lead to segmentation fault. Instruct clang that Python is limited to
+alignment on 8 bytes to use MOVUPS instruction instead: slower but don't
+trigger a SIGSEGV if the memory is not aligned on 16 bytes. Sadly, the flag
+must be added to ``CFLAGS`` and not just ``CFLAGS_NODIST``, since third
+party C extensions can have the same issue.
+
+..
+
+.. bpo: 36605
+.. date: 2019-04-11-18-50-58
+.. nonce: gk5czf
+.. section: Build
+
+``make tags`` and ``make TAGS`` now also parse ``Modules/_io/*.c`` and
+``Modules/_io/*.h``.
+
+..
+
+.. bpo: 36465
+.. date: 2019-04-09-18-19-43
+.. nonce: -w6vx6
+.. section: Build
+
+Release builds and debug builds are now ABI compatible: defining the
+``Py_DEBUG`` macro no longer implies the ``Py_TRACE_REFS`` macro, which
+introduces the only ABI incompatibility. The ``Py_TRACE_REFS`` macro, which
+adds the :func:`sys.getobjects` function and the :envvar:`PYTHONDUMPREFS`
+environment variable, can be set using the new ``./configure
+--with-trace-refs`` build option.
+
+..
+
+.. bpo: 36577
+.. date: 2019-04-09-17-31-47
+.. nonce: 34kuUW
+.. section: Build
+
+setup.py now correctly reports missing OpenSSL headers and libraries again.
+
+..
+
+.. bpo: 36544
+.. date: 2019-04-06-18-53-03
+.. nonce: hJr2_a
+.. section: Build
+
+Fix regression introduced in bpo-36146 refactoring setup.py
+
+..
+
+.. bpo: 36508
+.. date: 2019-04-02-17-01-23
+.. nonce: SN5Y6N
+.. section: Build
+
+``python-config --ldflags`` no longer includes flags of the
+``LINKFORSHARED`` variable. The ``LINKFORSHARED`` variable must only be used
+to build executables.
+
+..
+
+.. bpo: 36503
+.. date: 2019-04-02-09-25-23
+.. nonce: 0xzfkQ
+.. section: Build
+
+Remove references to "aix3" and "aix4". Patch by M. Felt.
+
+..
+
+.. bpo: 35920
+.. date: 2019-04-22-16-59-20
+.. nonce: VSfGOI
+.. section: Windows
+
+Added platform.win32_edition() and platform.win32_is_iot(). Added support
+for cross-compiling packages for Windows ARM32. Skip tests that are not
+expected to work on Windows IoT Core ARM32.
+
+..
+
+.. bpo: 36649
+.. date: 2019-04-17-11-39-24
+.. nonce: arbzIo
+.. section: Windows
+
+Remove trailing spaces for registry keys when installed via the Store.
+
+..
+
+.. bpo: 34144
+.. date: 2019-04-10-04-35-31
+.. nonce: _KzB5z
+.. section: Windows
+
+Fixed activate.bat to correctly update codepage when chcp.com returns dots
+in output. Patch by Lorenz Mende.
+
+..
+
+.. bpo: 36509
+.. date: 2019-04-02-10-11-18
+.. nonce: DdaM67
+.. section: Windows
+
+Added preset-iot layout for Windows IoT ARM containers. This layout doesn't
+contain UI components like tkinter or IDLE. It also doesn't contain files to
+support on-target builds since Windows ARM32 builds must be cross-compiled
+when using MSVC.
+
+..
+
+.. bpo: 35941
+.. date: 2019-03-28-03-51-16
+.. nonce: UnlAEE
+.. section: Windows
+
+enum_certificates function of the ssl module now returns certificates from
+all available certificate stores inside windows in a query instead of
+returning only certificates from the system wide certificate store. This
+includes certificates from these certificate stores: local machine, local
+machine enterprise, local machine group policy, current user, current user
+group policy, services, users. ssl.enum_crls() function is changed in the
+same way to return all certificate revocation lists inside the windows
+certificate revocation list stores.
+
+..
+
+.. bpo: 36441
+.. date: 2019-03-26-11-46-15
+.. nonce: lYjGF1
+.. section: Windows
+
+Fixes creating a venv when debug binaries are installed.
+
+..
+
+.. bpo: 36085
+.. date: 2019-03-18-11-44-49
+.. nonce: mLfxfc
+.. section: Windows
+
+Enable better DLL resolution on Windows by using safe DLL search paths and
+adding :func:`os.add_dll_directory`.
+
+..
+
+.. bpo: 36010
+.. date: 2019-03-16-10-24-58
+.. nonce: dttWfp
+.. section: Windows
+
+Add the venv standard library module to the nuget distribution for Windows.
+
+..
+
+.. bpo: 29515
+.. date: 2019-03-05-18-09-43
+.. nonce: vwUTv0
+.. section: Windows
+
+Add the following socket module constants on Windows: IPPROTO_AH IPPROTO_CBT
+IPPROTO_DSTOPTS IPPROTO_EGP IPPROTO_ESP IPPROTO_FRAGMENT IPPROTO_GGP
+IPPROTO_HOPOPTS IPPROTO_ICLFXBM IPPROTO_ICMPV6 IPPROTO_IDP IPPROTO_IGMP
+IPPROTO_IGP IPPROTO_IPV4 IPPROTO_IPV6 IPPROTO_L2TP IPPROTO_MAX IPPROTO_ND
+IPPROTO_NONE IPPROTO_PGM IPPROTO_PIM IPPROTO_PUP IPPROTO_RDP IPPROTO_ROUTING
+IPPROTO_SCTP IPPROTO_ST
+
+..
+
+.. bpo: 35947
+.. date: 2019-02-11-14-53-17
+.. nonce: 9vI4hP
+.. section: Windows
+
+Added current version of libffi to cpython-source-deps. Change _ctypes to
+use current version of libffi on Windows.
+
+..
+
+.. bpo: 34060
+.. date: 2018-07-20-13-09-19
+.. nonce: v-z87j
+.. section: Windows
+
+Report system load when running test suite on Windows. Patch by Ammar Askar.
+Based on prior work by Jeremy Kloth.
+
+..
+
+.. bpo: 31512
+.. date: 2017-10-04-12-40-45
+.. nonce: YQeBt2
+.. section: Windows
+
+With the Windows 10 Creators Update, non-elevated users can now create
+symlinks as long as the computer has Developer Mode enabled.
+
+..
+
+.. bpo: 34602
+.. date: 2019-04-29-10-54-14
+.. nonce: Lrl2zU
+.. section: macOS
+
+Avoid failures setting macOS stack resource limit with resource.setrlimit.
+This reverts an earlier fix for bpo-18075 which forced a non-default stack
+size when building the interpreter executable on macOS.
+
+..
+
+.. bpo: 36429
+.. date: 2019-03-26-00-09-50
+.. nonce: w-jL2e
+.. section: IDLE
+
+Fix starting IDLE with pyshell. Add idlelib.pyshell alias at top; remove
+pyshell alias at bottom. Remove obsolete __name__=='__main__' command.
+
+..
+
+.. bpo: 14546
+.. date: 2019-04-30-14-30-29
+.. nonce: r38Y-6
+.. section: Tools/Demos
+
+Fix the argument handling in Tools/scripts/lll.py.
+
+..
+
+.. bpo: 36763
+.. date: 2019-05-01-00-42-08
+.. nonce: vghb86
+.. section: C API
+
+Fix memory leak in :c:func:`Py_SetStandardStreamEncoding`: release memory if
+the function is called twice.
+
+..
+
+.. bpo: 36641
+.. date: 2019-04-16-21-18-19
+.. nonce: pz-DIR
+.. section: C API
+
+:c:expr:`PyDoc_VAR(name)` and :c:expr:`PyDoc_STRVAR(name,str)` now create
+``static const char name[]`` instead of ``static char name[]``. Patch by
+Inada Naoki.
+
+..
+
+.. bpo: 36389
+.. date: 2019-04-11-12-20-35
+.. nonce: P9QFoP
+.. section: C API
+
+Change the value of ``CLEANBYTE``, ``DEADDYTE`` and ``FORBIDDENBYTE``
+internal constants used by debug hooks on Python memory allocators
+(:c:func:`PyMem_SetupDebugHooks` function). Byte patterns ``0xCB``, ``0xDB``
+and ``0xFB`` have been replaced with ``0xCD``, ``0xDD`` and ``0xFD`` to use
+the same values than Windows CRT debug ``malloc()`` and ``free()``.
+
+..
+
+.. bpo: 36443
+.. date: 2019-03-27-15-58-23
+.. nonce: tAfZR9
+.. section: C API
+
+Since Python 3.7.0, calling :c:func:`Py_DecodeLocale` before
+:c:func:`Py_Initialize` produces mojibake if the ``LC_CTYPE`` locale is
+coerced and/or if the UTF-8 Mode is enabled by the user configuration. The
+LC_CTYPE coercion and UTF-8 Mode are now disabled by default to fix the
+mojibake issue. They must now be enabled explicitly (opt-in) using the new
+:c:func:`_Py_PreInitialize` API with ``_PyPreConfig``.
+
+..
+
+.. bpo: 36025
+.. date: 2019-02-19-08-23-42
+.. nonce: tnwylQ
+.. section: C API
+
+Fixed an accidental change to the datetime C API where the arguments to the
+:c:func:`PyDate_FromTimestamp` function were incorrectly interpreted as a
+single timestamp rather than an arguments tuple, which causes existing code
+to start raising :exc:`TypeError`. The backwards-incompatible change was
+only present in alpha releases of Python 3.8. Patch by Paul Ganssle.
+
+..
+
+.. bpo: 35810
+.. date: 2019-01-23-12-38-11
+.. nonce: wpbWeb
+.. section: C API
+
+Modify ``PyObject_Init`` to correctly increase the refcount of heap-
+allocated Type objects. Also fix the refcounts of the heap-allocated types
+that were either doing this manually or not decreasing the type's refcount
+in tp_dealloc
--- /dev/null
+.. bpo: 35907
+.. date: 2019-05-21-23-20-18
+.. nonce: NC_zNK
+.. release date: 2019-06-04
+.. section: Security
+
+CVE-2019-9948: Avoid file reading by disallowing ``local-file://`` and
+``local_file://`` URL schemes in ``URLopener().open()`` and
+``URLopener().retrieve()`` of :mod:`urllib.request`.
+
+..
+
+.. bpo: 33529
+.. date: 2019-02-24-18-48-16
+.. nonce: wpNNBD
+.. section: Security
+
+Prevent fold function used in email header encoding from entering infinite
+loop when there are too many non-ASCII characters in a header.
+
+..
+
+.. bpo: 33164
+.. date: 2018-03-30-12-26-47
+.. nonce: aO29Cx
+.. section: Security
+
+Updated blake2 implementation which uses secure memset implementation
+provided by platform.
+
+..
+
+.. bpo: 35814
+.. date: 2019-06-03-00-51-02
+.. nonce: Cf7sGY
+.. section: Core and Builtins
+
+Allow unpacking in the right hand side of annotated assignments. In
+particular, ``t: Tuple[int, ...] = x, y, *z`` is now allowed.
+
+..
+
+.. bpo: 37126
+.. date: 2019-06-01-20-03-13
+.. nonce: tP6lL4
+.. section: Core and Builtins
+
+All structseq objects are now tracked by the garbage collector. Patch by
+Pablo Galindo.
+
+..
+
+.. bpo: 37122
+.. date: 2019-06-01-16-53-41
+.. nonce: dZ3-NY
+.. section: Core and Builtins
+
+Make the *co_argcount* attribute of code objects represent the total number
+of positional arguments (including positional-only arguments). The value of
+*co_posonlyargcount* can be used to distinguish which arguments are
+positional only, and the difference (*co_argcount* - *co_posonlyargcount*)
+is the number of positional-or-keyword arguments. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 20092
+.. date: 2019-05-31-11-55-49
+.. nonce: KIMjBW
+.. section: Core and Builtins
+
+Constructors of :class:`int`, :class:`float` and :class:`complex` will now
+use the :meth:`~object.__index__` special method, if available and the
+corresponding method :meth:`~object.__int__`, :meth:`~object.__float__` or
+:meth:`~object.__complex__` is not available.
+
+..
+
+.. bpo: 37087
+.. date: 2019-05-30-17-33-55
+.. nonce: vElenE
+.. section: Core and Builtins
+
+Add native thread ID (TID) support to OpenBSD.
+
+..
+
+.. bpo: 26219
+.. date: 2019-05-29-22-03-09
+.. nonce: Ovf1Qs
+.. section: Core and Builtins
+
+Implemented per opcode cache mechanism and ``LOAD_GLOBAL`` instruction use
+it. ``LOAD_GLOBAL`` is now about 40% faster. Contributed by Yury Selivanov,
+and Inada Naoki.
+
+..
+
+.. bpo: 37072
+.. date: 2019-05-28-18-18-55
+.. nonce: 1Hewl3
+.. section: Core and Builtins
+
+Fix crash in PyAST_FromNodeObject() when flags is NULL.
+
+..
+
+.. bpo: 37029
+.. date: 2019-05-28-17-02-46
+.. nonce: MxpgfJ
+.. section: Core and Builtins
+
+Freeing a great many small objects could take time quadratic in the number
+of arenas, due to using linear search to keep ``obmalloc.c``'s list of
+usable arenas sorted by order of number of free memory pools. This is
+accomplished without search now, leaving the worst-case time linear in the
+number of arenas. For programs where this quite visibly matters (typically
+with more than 100 thousand small objects alive simultaneously), this can
+greatly reduce the time needed to release their memory.
+
+..
+
+.. bpo: 26423
+.. date: 2019-05-27-18-00-19
+.. nonce: RgUOE8
+.. section: Core and Builtins
+
+Fix possible overflow in ``wrap_lenfunc()`` when ``sizeof(long) <
+sizeof(Py_ssize_t)`` (e.g., 64-bit Windows).
+
+..
+
+.. bpo: 37050
+.. date: 2019-05-27-14-46-24
+.. nonce: 7MyZGg
+.. section: Core and Builtins
+
+Improve the AST for "debug" f-strings, which use '=' to print out the source
+of the expression being evaluated. Delete expr_text from the FormattedValue
+node, and instead use a Constant string node (possibly merged with adjacent
+constant expressions inside the f-string).
+
+..
+
+.. bpo: 22385
+.. date: 2019-05-25-17-18-26
+.. nonce: VeVvhJ
+.. section: Core and Builtins
+
+The `bytes.hex`, `bytearray.hex`, and `memoryview.hex` methods as well as
+the `binascii.hexlify` and `b2a_hex` functions now have the ability to
+include an optional separator between hex bytes. This functionality was
+inspired by MicroPython's hexlify implementation.
+
+..
+
+.. bpo: 26836
+.. date: 2019-05-25-08-18-01
+.. nonce: rplYWW
+.. section: Core and Builtins
+
+Add :func:`os.memfd_create`.
+
+..
+
+.. bpo: 37032
+.. date: 2019-05-24-12-38-40
+.. nonce: T8rSH8
+.. section: Core and Builtins
+
+Added new ``replace()`` method to the code type (:class:`types.CodeType`).
+
+..
+
+.. bpo: 37007
+.. date: 2019-05-23-04-19-13
+.. nonce: d1SOtF
+.. section: Core and Builtins
+
+Implement :func:`socket.if_nameindex()`, :func:`socket.if_nametoindex()`,
+and :func:`socket.if_indextoname()` on Windows.
+
+..
+
+.. bpo: 36829
+.. date: 2019-05-22-23-01-29
+.. nonce: MfOcUg
+.. section: Core and Builtins
+
+:c:func:`PyErr_WriteUnraisable` now creates a traceback object if there is
+no current traceback. Moreover, call :c:func:`PyErr_NormalizeException` and
+:c:func:`PyException_SetTraceback` to normalize the exception value. Ignore
+any error.
+
+..
+
+.. bpo: 36878
+.. date: 2019-05-22-11-16-16
+.. nonce: QwLa3P
+.. section: Core and Builtins
+
+Only accept text after `# type: ignore` if the first character is ASCII.
+This is to disallow things like `# type: ignoreé`.
+
+..
+
+.. bpo: 36878
+.. date: 2019-05-21-16-21-22
+.. nonce: EFRHZ3
+.. section: Core and Builtins
+
+Store text appearing after a `# type: ignore` comment in the AST. For
+example a type ignore like `# type: ignore[E1000]` will have the string
+`"[E1000]"` stored in its AST node.
+
+..
+
+.. bpo: 2180
+.. date: 2019-05-17-18-34-30
+.. nonce: aBqHeW
+.. section: Core and Builtins
+
+Treat line continuation at EOF as a ``SyntaxError`` by Anthony Sottile.
+
+..
+
+.. bpo: 36907
+.. date: 2019-05-17-12-28-24
+.. nonce: rk7kgp
+.. section: Core and Builtins
+
+Fix a crash when calling a C function with a keyword dict (``f(**kwargs)``)
+and changing the dict ``kwargs`` while that function is running.
+
+..
+
+.. bpo: 36946
+.. date: 2019-05-16-23-53-45
+.. nonce: qjxr0Y
+.. section: Core and Builtins
+
+Fix possible signed integer overflow when handling slices.
+
+..
+
+.. bpo: 36826
+.. date: 2019-05-15-14-01-09
+.. nonce: GLrO3W
+.. section: Core and Builtins
+
+Add NamedExpression kind support to ast_unparse.c
+
+..
+
+.. bpo: 1875
+.. date: 2019-05-15-01-29-29
+.. nonce: 9oxXFX
+.. section: Core and Builtins
+
+A :exc:`SyntaxError` is now raised if a code blocks that will be optimized
+away (e.g. if conditions that are always false) contains syntax errors.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 36027
+.. date: 2019-05-12-18-46-50
+.. nonce: Q4YatQ
+.. section: Core and Builtins
+
+Allow computation of modular inverses via three-argument ``pow``: the second
+argument is now permitted to be negative in the case where the first and
+third arguments are relatively prime.
+
+..
+
+.. bpo: 36861
+.. date: 2019-05-08-20-42-40
+.. nonce: 72mvZM
+.. section: Core and Builtins
+
+Update the Unicode database to version 12.1.0.
+
+..
+
+.. bpo: 28866
+.. date: 2019-05-08-16-36-51
+.. nonce: qCv_bj
+.. section: Core and Builtins
+
+Avoid caching attributes of classes which type defines mro() to avoid a hard
+cache invalidation problem.
+
+..
+
+.. bpo: 36851
+.. date: 2019-05-08-11-42-06
+.. nonce: J7DiCW
+.. section: Core and Builtins
+
+The ``FrameType`` stack is now correctly cleaned up if the execution ends
+with a return and the stack is not empty.
+
+..
+
+.. bpo: 34616
+.. date: 2019-05-07-17-12-37
+.. nonce: 0Y0_9r
+.. section: Core and Builtins
+
+The ``compile()`` builtin functions now support the
+``ast.PyCF_ALLOW_TOP_LEVEL_AWAIT`` flag, which allow to compile sources
+that contains top-level ``await``, ``async with`` or ``async for``. This is
+useful to evaluate async-code from with an already async functions; for
+example in a custom REPL.
+
+..
+
+.. bpo: 36842
+.. date: 2019-05-07-16-50-12
+.. nonce: NYww_N
+.. section: Core and Builtins
+
+Implement PEP 578, adding sys.audit, io.open_code and related APIs.
+
+..
+
+.. bpo: 27639
+.. date: 2019-05-07-15-49-17
+.. nonce: b1Ah87
+.. section: Core and Builtins
+
+Correct return type for UserList slicing operations. Patch by Michael
+Blahay, Erick Cervantes, and vaultah
+
+..
+
+.. bpo: 36737
+.. date: 2019-05-07-12-18-11
+.. nonce: XAo6LY
+.. section: Core and Builtins
+
+Move PyRuntimeState.warnings into per-interpreter state (via "module
+state").
+
+..
+
+.. bpo: 36793
+.. date: 2019-05-04-16-15-33
+.. nonce: Izog4Z
+.. section: Core and Builtins
+
+Removed ``__str__`` implementations from builtin types :class:`bool`,
+:class:`int`, :class:`float`, :class:`complex` and few classes from the
+standard library. They now inherit ``__str__()`` from :class:`object`.
+
+..
+
+.. bpo: 36817
+.. date: 2019-05-02-11-48-08
+.. nonce: ZqbJ1J
+.. section: Core and Builtins
+
+Add a ``=`` feature f-strings for debugging. This can precede ``!s``,
+``!r``, or ``!a``. It produces the text of the expression, followed by an
+equal sign, followed by the repr of the value of the expression. So
+``f'{3*9+15=}'`` would be equal to the string ``'3*9+15=42'``. If ``=`` is
+specified, the default conversion is set to ``!r``, unless a format spec is
+given, in which case the formatting behavior is unchanged, and __format__
+will be used.
+
+..
+
+.. bpo: 24048
+.. date: 2019-04-29-03-27-22
+.. nonce: vXxUDQ
+.. section: Core and Builtins
+
+Save the live exception during import.c's ``remove_module()``.
+
+..
+
+.. bpo: 27987
+.. date: 2019-04-16-11-52-21
+.. nonce: n2_DcQ
+.. section: Core and Builtins
+
+pymalloc returns memory blocks aligned by 16 bytes, instead of 8 bytes, on
+64-bit platforms to conform x86-64 ABI. Recent compilers assume this
+alignment more often. Patch by Inada Naoki.
+
+..
+
+.. bpo: 36601
+.. date: 2019-04-13-16-14-16
+.. nonce: mIgS7t
+.. section: Core and Builtins
+
+A long-since-meaningless check for ``getpid() == main_pid`` was removed from
+Python's internal C signal handler.
+
+..
+
+.. bpo: 36594
+.. date: 2019-04-10-18-12-11
+.. nonce: fbnJAc
+.. section: Core and Builtins
+
+Fix incorrect use of ``%p`` in format strings. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 36045
+.. date: 2019-02-24-12-44-46
+.. nonce: RO20OV
+.. section: Core and Builtins
+
+builtins.help() now prefixes `async` for async functions
+
+..
+
+.. bpo: 36084
+.. date: 2019-02-22-23-03-20
+.. nonce: 86Eh4X
+.. section: Core and Builtins
+
+Add native thread ID (TID) to threading.Thread objects (supported platforms:
+Windows, FreeBSD, Linux, macOS)
+
+..
+
+.. bpo: 36035
+.. date: 2019-02-22-14-30-19
+.. nonce: -6dy1y
+.. section: Core and Builtins
+
+Added fix for broken symlinks in combination with pathlib
+
+..
+
+.. bpo: 35983
+.. date: 2019-02-13-16-47-19
+.. nonce: bNxsXv
+.. section: Core and Builtins
+
+Added new trashcan macros to deal with a double deallocation that could
+occur when the `tp_dealloc` of a subclass calls the `tp_dealloc` of a base
+class and that base class uses the trashcan mechanism. Patch by Jeroen
+Demeyer.
+
+..
+
+.. bpo: 20602
+.. date: 2018-07-04-16-57-59
+.. nonce: sDLElw
+.. section: Core and Builtins
+
+Do not clear :data:`sys.flags` and :data:`sys.float_info` during shutdown.
+Patch by Zackery Spytz.
+
+..
+
+.. bpo: 26826
+.. date: 2018-05-30-23-43-03
+.. nonce: NkRzjb
+.. section: Core and Builtins
+
+Expose :func:`copy_file_range` as a low level API in the :mod:`os` module.
+
+..
+
+.. bpo: 32388
+.. date: 2017-12-21-20-37-40
+.. nonce: 6w-i5t
+.. section: Core and Builtins
+
+Remove cross-version binary compatibility requirement in tp_flags.
+
+..
+
+.. bpo: 31862
+.. date: 2017-10-24-17-26-58
+.. nonce: 5Gea8L
+.. section: Core and Builtins
+
+Port binascii to PEP 489 multiphase initialization. Patch by Marcel Plch.
+
+..
+
+.. bpo: 37128
+.. date: 2019-06-01-22-54-03
+.. nonce: oGXBWN
+.. section: Library
+
+Added :func:`math.perm`.
+
+..
+
+.. bpo: 37120
+.. date: 2019-06-01-09-03-32
+.. nonce: FOKQLU
+.. section: Library
+
+Add SSLContext.num_tickets to control the number of TLSv1.3 session tickets.
+
+..
+
+.. bpo: 12202
+.. date: 2019-05-31-15-53-34
+.. nonce: nobzc9
+.. section: Library
+
+Fix the error handling in :meth:`msilib.SummaryInformation.GetProperty`.
+Patch by Zackery Spytz.
+
+..
+
+.. bpo: 26835
+.. date: 2019-05-31-11-33-11
+.. nonce: xGbUX0
+.. section: Library
+
+The fcntl module now contains file sealing constants for sealing of memfds.
+
+..
+
+.. bpo: 29262
+.. date: 2019-05-30-21-25-14
+.. nonce: LdIzun
+.. section: Library
+
+Add ``get_origin()`` and ``get_args()`` introspection helpers to ``typing``
+module.
+
+..
+
+.. bpo: 12639
+.. date: 2019-05-30-16-16-47
+.. nonce: TQFOR4
+.. section: Library
+
+:meth:`msilib.Directory.start_component()` no longer fails if *keyfile* is
+not ``None``.
+
+..
+
+.. bpo: 36999
+.. date: 2019-05-30-13-30-46
+.. nonce: EjY_L2
+.. section: Library
+
+Add the ``asyncio.Task.get_coro()`` method to publicly expose the tasks's
+coroutine object.
+
+..
+
+.. bpo: 35246
+.. date: 2019-05-28-23-17-35
+.. nonce: oXT21d
+.. section: Library
+
+Make :func:`asyncio.create_subprocess_exec` accept path-like arguments.
+
+..
+
+.. bpo: 35279
+.. date: 2019-05-28-19-14-29
+.. nonce: PX7yl9
+.. section: Library
+
+Change default *max_workers* of ``ThreadPoolExecutor`` from ``cpu_count() *
+5`` to ``min(32, cpu_count() + 4)``. Previous value was unreasonably large
+on many cores machines.
+
+..
+
+.. bpo: 37076
+.. date: 2019-05-28-12-17-10
+.. nonce: Bk2xOs
+.. section: Library
+
+:func:`_thread.start_new_thread` now logs uncaught exception raised by the
+function using :func:`sys.unraisablehook`, rather than
+:func:`sys.excepthook`, so the hook gets access to the function which raised
+the exception.
+
+..
+
+.. bpo: 33725
+.. date: 2019-05-28-01-17-42
+.. nonce: fFZoDG
+.. section: Library
+
+On macOS, the :mod:`multiprocessing` module now uses *spawn* start method by
+default.
+
+..
+
+.. bpo: 37054
+.. date: 2019-05-28-01-06-44
+.. nonce: sLULGQ
+.. section: Library
+
+Fix destructor :class:`_pyio.BytesIO` and :class:`_pyio.TextIOWrapper`:
+initialize their ``_buffer`` attribute as soon as possible (in the class
+body), because it's used by ``__del__()`` which calls ``close()``.
+
+..
+
+.. bpo: 37058
+.. date: 2019-05-26-19-05-24
+.. nonce: jmRu_g
+.. section: Library
+
+PEP 544: Add ``Protocol`` and ``@runtime_checkable`` to the ``typing``
+module.
+
+..
+
+.. bpo: 36933
+.. date: 2019-05-26-10-16-55
+.. nonce: 4w3eP9
+.. section: Library
+
+The functions ``sys.set_coroutine_wrapper`` and
+``sys.get_coroutine_wrapper`` that were deprecated and marked for removal in
+3.8 have been removed.
+
+..
+
+.. bpo: 37047
+.. date: 2019-05-26-01-20-06
+.. nonce: K9epi8
+.. section: Library
+
+Handle late binding and attribute access in :class:`unittest.mock.AsyncMock`
+setup for autospeccing. Document newly implemented async methods in
+:class:`unittest.mock.MagicMock`.
+
+..
+
+.. bpo: 37049
+.. date: 2019-05-25-19-48-42
+.. nonce: an2LXJ
+.. section: Library
+
+PEP 589: Add ``TypedDict`` to the ``typing`` module.
+
+..
+
+.. bpo: 37046
+.. date: 2019-05-25-19-12-53
+.. nonce: iuhQQj
+.. section: Library
+
+PEP 586: Add ``Literal`` to the ``typing`` module.
+
+..
+
+.. bpo: 37045
+.. date: 2019-05-25-18-36-50
+.. nonce: suHdVJ
+.. section: Library
+
+PEP 591: Add ``Final`` qualifier and ``@final`` decorator to the ``typing``
+module.
+
+..
+
+.. bpo: 37035
+.. date: 2019-05-24-18-16-07
+.. nonce: HFbJVT
+.. section: Library
+
+Don't log OSError based exceptions if a fatal error has occurred in asyncio
+transport. Peer can generate almost any OSError, user cannot avoid these
+exceptions by fixing own code. Errors are still propagated to user code,
+it's just logging them is pointless and pollute asyncio logs.
+
+..
+
+.. bpo: 37001
+.. date: 2019-05-23-21-10-57
+.. nonce: DoLvTK
+.. section: Library
+
+:func:`symtable.symtable` now accepts the same input types for source code
+as the built-in :func:`compile` function. Patch by Dino Viehland.
+
+..
+
+.. bpo: 37028
+.. date: 2019-05-23-18-57-34
+.. nonce: Vse6Pj
+.. section: Library
+
+Implement asyncio REPL
+
+..
+
+.. bpo: 37027
+.. date: 2019-05-23-18-46-56
+.. nonce: iH4eut
+.. section: Library
+
+Return safe to use proxy socket object from
+transport.get_extra_info('socket')
+
+..
+
+.. bpo: 32528
+.. date: 2019-05-23-17-37-22
+.. nonce: sGnkcl
+.. section: Library
+
+Make asyncio.CancelledError a BaseException.
+
+This will address the common mistake many asyncio users make: an "except
+Exception" clause breaking Tasks cancellation.
+
+In addition to this change, we stop inheriting asyncio.TimeoutError and
+asyncio.InvalidStateError from their concurrent.futures.* counterparts.
+There's no point for these exceptions to share the inheritance chain.
+
+..
+
+.. bpo: 1230540
+.. date: 2019-05-23-01-48-39
+.. nonce: oKTNEQ
+.. section: Library
+
+Add a new :func:`threading.excepthook` function which handles uncaught
+:meth:`threading.Thread.run` exception. It can be overridden to control how
+uncaught :meth:`threading.Thread.run` exceptions are handled.
+
+..
+
+.. bpo: 36996
+.. date: 2019-05-22-22-55-18
+.. nonce: XQx08d
+.. section: Library
+
+Handle :func:`unittest.mock.patch` used as a decorator on async functions.
+
+..
+
+.. bpo: 37008
+.. date: 2019-05-22-15-26-08
+.. nonce: WPbv31
+.. section: Library
+
+Add support for calling :func:`next` with the mock resulting from
+:func:`unittest.mock.mock_open`
+
+..
+
+.. bpo: 27737
+.. date: 2019-05-22-02-25-31
+.. nonce: 7bgKpa
+.. section: Library
+
+Allow whitespace only header encoding in ``email.header`` - by Batuhan
+Taskaya
+
+..
+
+.. bpo: 36969
+.. date: 2019-05-21-12-31-21
+.. nonce: u7cxu7
+.. section: Library
+
+PDB command `args` now display positional only arguments. Patch contributed
+by Rémi Lapeyre.
+
+..
+
+.. bpo: 36969
+.. date: 2019-05-20-23-31-20
+.. nonce: JkZORP
+.. section: Library
+
+PDB command `args` now display keyword only arguments. Patch contributed by
+Rémi Lapeyre.
+
+..
+
+.. bpo: 36983
+.. date: 2019-05-20-20-41-30
+.. nonce: hz-fLr
+.. section: Library
+
+Add missing names to ``typing.__all__``: ``ChainMap``, ``ForwardRef``,
+``OrderedDict`` - by Anthony Sottile.
+
+..
+
+.. bpo: 36972
+.. date: 2019-05-20-17-08-26
+.. nonce: 3l3SGc
+.. section: Library
+
+Add SupportsIndex protocol to the typing module to allow type checking to
+detect classes that can be passed to `hex()`, `oct()` and `bin()`.
+
+..
+
+.. bpo: 32972
+.. date: 2019-05-20-14-47-55
+.. nonce: LoeUNh
+.. section: Library
+
+Implement ``unittest.IsolatedAsyncioTestCase`` to help testing asyncio-based code.
+
+..
+
+.. bpo: 36952
+.. date: 2019-05-20-11-01-28
+.. nonce: MgZi7-
+.. section: Library
+
+:func:`fileinput.input` and :class:`fileinput.FileInput` **bufsize**
+argument has been removed (was deprecated and ignored since Python 3.6), and
+as a result the **mode** and **openhook** arguments have been made
+keyword-only.
+
+..
+
+.. bpo: 36952
+.. date: 2019-05-20-08-54-41
+.. nonce: I_glok
+.. section: Library
+
+Starting with Python 3.3, importing ABCs from :mod:`collections` is
+deprecated, and import should be done from :mod:`collections.abc`. Still
+being able to import from :mod:`collections` was marked for removal in 3.8,
+but has been delayed to 3.9; documentation and ``DeprecationWarning``
+clarified.
+
+..
+
+.. bpo: 36949
+.. date: 2019-05-19-06-54-26
+.. nonce: jBlG9F
+.. section: Library
+
+Implement __repr__ for WeakSet objects.
+
+..
+
+.. bpo: 36948
+.. date: 2019-05-17-21-42-58
+.. nonce: vnUDvk
+.. section: Library
+
+Fix :exc:`NameError` in :meth:`urllib.request.URLopener.retrieve`. Patch by
+Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 33524
+.. date: 2019-05-17-11-44-21
+.. nonce: 8y_xUU
+.. section: Library
+
+Fix the folding of email header when the max_line_length is 0 or None and
+the header contains non-ascii characters. Contributed by Licht Takeuchi
+(@Licht-T).
+
+..
+
+.. bpo: 24564
+.. date: 2019-05-16-23-40-36
+.. nonce: lIwV_7
+.. section: Library
+
+:func:`shutil.copystat` now ignores :const:`errno.EINVAL` on
+:func:`os.setxattr` which may occur when copying files on filesystems
+without extended attributes support.
+
+Original patch by Giampaolo Rodola, updated by Ying Wang.
+
+..
+
+.. bpo: 36888
+.. date: 2019-05-16-18-02-08
+.. nonce: -H2Dkm
+.. section: Library
+
+Python child processes can now access the status of their parent process
+using multiprocessing.process.parent_process
+
+..
+
+.. bpo: 36921
+.. date: 2019-05-15-21-35-23
+.. nonce: kA1306
+.. section: Library
+
+Deprecate ``@coroutine`` for sake of ``async def``.
+
+..
+
+.. bpo: 25652
+.. date: 2019-05-14-21-39-52
+.. nonce: xLw42k
+.. section: Library
+
+Fix bug in ``__rmod__`` of ``UserString`` - by Batuhan Taskaya.
+
+..
+
+.. bpo: 36916
+.. date: 2019-05-14-15-39-34
+.. nonce: _GPsTt
+.. section: Library
+
+Remove a message about an unhandled exception in a task when writer.write()
+is used without await and writer.drain() fails with an exception.
+
+..
+
+.. bpo: 36889
+.. date: 2019-05-14-12-25-44
+.. nonce: MChPqP
+.. section: Library
+
+Introduce :class:`asyncio.Stream` class that merges
+:class:`asyncio.StreamReader` and :class:`asyncio.StreamWriter`
+functionality. :class:`asyncio.Stream` can work in readonly, writeonly and
+readwrite modes. Provide :func:`asyncio.connect`,
+:func:`asyncio.connect_unix`, :func:`asyncio.connect_read_pipe` and
+:func:`asyncio.connect_write_pipe` factories to open :class:`asyncio.Stream`
+connections. Provide :class:`asyncio.StreamServer` and
+:class:`UnixStreamServer` to serve servers with asyncio.Stream API. Modify
+:func:`asyncio.create_subprocess_shell` and
+:func:`asyncio.create_subprocess_exec` to use :class:`asyncio.Stream`
+instead of deprecated :class:`StreamReader` and :class:`StreamWriter`.
+Deprecate :class:`asyncio.StreamReader` and :class:`asyncio.StreamWriter`.
+Deprecate usage of private classes, e.g. :class:`asyncio.FlowControlMixing`
+and :class:`asyncio.StreamReaderProtocol` outside of asyncio package.
+
+..
+
+.. bpo: 36845
+.. date: 2019-05-14-07-57-02
+.. nonce: _GtFFf
+.. section: Library
+
+Added validation of integer prefixes to the construction of IP networks and
+interfaces in the ipaddress module.
+
+..
+
+.. bpo: 23378
+.. date: 2019-05-14-05-38-22
+.. nonce: R25teI
+.. section: Library
+
+Add an extend action to argparser.
+
+..
+
+.. bpo: 36867
+.. date: 2019-05-13-13-02-43
+.. nonce: Qh-6mX
+.. section: Library
+
+Fix a bug making a SharedMemoryManager instance and its parent process use
+two separate resource_tracker processes.
+
+..
+
+.. bpo: 23896
+.. date: 2019-05-13-05-49-15
+.. nonce: 8TtUKo
+.. section: Library
+
+Adds a grammar to lib2to3.pygram that contains exec as a function not as
+statement.
+
+..
+
+.. bpo: 36895
+.. date: 2019-05-12-14-49-13
+.. nonce: ZZuuY7
+.. section: Library
+
+The function ``time.clock()`` was deprecated in 3.3 in favor of
+``time.perf_counter()`` and marked for removal in 3.8, it has removed.
+
+..
+
+.. bpo: 35545
+.. date: 2019-05-11-16-21-29
+.. nonce: FcvJvP
+.. section: Library
+
+Fix asyncio discarding IPv6 scopes when ensuring hostname resolutions
+internally
+
+..
+
+.. bpo: 36887
+.. date: 2019-05-11-14-50-59
+.. nonce: XD3f22
+.. section: Library
+
+Add new function :func:`math.isqrt` to compute integer square roots.
+
+..
+
+.. bpo: 34632
+.. date: 2019-05-11-02-30-45
+.. nonce: 8MXa7T
+.. section: Library
+
+Introduce the ``importlib.metadata`` module with (provisional) support for
+reading metadata from third-party packages.
+
+..
+
+.. bpo: 36878
+.. date: 2019-05-10-22-00-06
+.. nonce: iigeqk
+.. section: Library
+
+When using `type_comments=True` in `ast.parse`, treat `# type: ignore`
+followed by a non-alphanumeric character and then arbitrary text as a type
+ignore, instead of requiring nothing but whitespace or another comment. This
+is to permit formations such as `# type: ignore[E1000]`.
+
+..
+
+.. bpo: 36778
+.. date: 2019-05-10-01-06-36
+.. nonce: GRqeiS
+.. section: Library
+
+``cp65001`` encoding (Windows code page 65001) becomes an alias to ``utf_8``
+encoding.
+
+..
+
+.. bpo: 36867
+.. date: 2019-05-09-18-12-55
+.. nonce: FuwVTi
+.. section: Library
+
+The multiprocessing.resource_tracker replaces the
+multiprocessing.semaphore_tracker module. Other than semaphores,
+resource_tracker also tracks shared_memory segments.
+
+..
+
+.. bpo: 30262
+.. date: 2019-05-09-12-38-40
+.. nonce: Tu74ak
+.. section: Library
+
+The ``Cache`` and ``Statement`` objects of the :mod:`sqlite3` module are not
+exposed to the user. Patch by Aviv Palivoda.
+
+..
+
+.. bpo: 24538
+.. date: 2019-05-09-08-35-18
+.. nonce: WK8Y-k
+.. section: Library
+
+In `shutil.copystat()`, first copy extended file attributes and then file
+permissions, since extended attributes can only be set on the destination
+while it is still writeable.
+
+..
+
+.. bpo: 36829
+.. date: 2019-05-08-12-51-37
+.. nonce: 8enFMA
+.. section: Library
+
+Add new :func:`sys.unraisablehook` function which can be overridden to
+control how "unraisable exceptions" are handled. It is called when an
+exception has occurred but there is no way for Python to handle it. For
+example, when a destructor raises an exception or during garbage collection
+(:func:`gc.collect`).
+
+..
+
+.. bpo: 36832
+.. date: 2019-05-07-15-00-45
+.. nonce: TExgqb
+.. section: Library
+
+Introducing ``zipfile.Path``, a pathlib-compatible wrapper for traversing
+zip files.
+
+..
+
+.. bpo: 36814
+.. date: 2019-05-06-23-13-26
+.. nonce: dSeMz_
+.. section: Library
+
+Fix an issue where os.posix_spawnp() would incorrectly raise a TypeError
+when file_actions is None.
+
+..
+
+.. bpo: 33110
+.. date: 2019-05-06-22-34-47
+.. nonce: rSJSCh
+.. section: Library
+
+Handle exceptions raised by functions added by concurrent.futures
+add_done_callback correctly when the Future has already completed.
+
+..
+
+.. bpo: 26903
+.. date: 2019-05-06-19-17-04
+.. nonce: 4payXb
+.. section: Library
+
+Limit `max_workers` in `ProcessPoolExecutor` to 61 to work around a
+WaitForMultipleObjects limitation.
+
+..
+
+.. bpo: 36813
+.. date: 2019-05-06-18-28-38
+.. nonce: NXD0KZ
+.. section: Library
+
+Fix :class:`~logging.handlers.QueueListener` to call ``queue.task_done()``
+upon stopping. Patch by Bar Harel.
+
+..
+
+.. bpo: 36806
+.. date: 2019-05-05-16-14-38
+.. nonce: rAzF-x
+.. section: Library
+
+Forbid creation of asyncio stream objects like StreamReader, StreamWriter,
+Process, and their protocols outside of asyncio package.
+
+..
+
+.. bpo: 36802
+.. date: 2019-05-05-10-12-23
+.. nonce: HYMc8P
+.. section: Library
+
+Provide both sync and async calls for StreamWriter.write() and
+StreamWriter.close()
+
+..
+
+.. bpo: 36801
+.. date: 2019-05-05-09-45-44
+.. nonce: XrlFFs
+.. section: Library
+
+Properly handle SSL connection closing in asyncio StreamWriter.drain() call.
+
+..
+
+.. bpo: 36785
+.. date: 2019-05-03-20-47-55
+.. nonce: PQLnPq
+.. section: Library
+
+Implement PEP 574 (pickle protocol 5 with out-of-band buffers).
+
+..
+
+.. bpo: 36772
+.. date: 2019-05-01-20-41-53
+.. nonce: fV2K0F
+.. section: Library
+
+functools.lru_cache() can now be used as a straight decorator in addition to
+its existing usage as a function that returns a decorator.
+
+..
+
+.. bpo: 6584
+.. date: 2019-04-30-04-34-53
+.. nonce: Hzp9-P
+.. section: Library
+
+Add a :exc:`~gzip.BadGzipFile` exception to the :mod:`gzip` module.
+
+..
+
+.. bpo: 36748
+.. date: 2019-04-29-15-18-13
+.. nonce: YBKWps
+.. section: Library
+
+Optimized write buffering in C implementation of ``TextIOWrapper``. Writing
+ASCII string to ``TextIOWrapper`` with ascii, latin1, or utf-8 encoding is
+about 20% faster. Patch by Inada Naoki.
+
+..
+
+.. bpo: 8138
+.. date: 2019-04-27-02-54-23
+.. nonce: osBRGI
+.. section: Library
+
+Don't mark ``wsgiref.simple_server.SimpleServer`` as multi-threaded since
+``wsgiref.simple_server.WSGIServer`` is single-threaded.
+
+..
+
+.. bpo: 22640
+.. date: 2019-04-26-22-13-26
+.. nonce: p3rheW
+.. section: Library
+
+:func:`py_compile.compile` now supports silent mode. Patch by Joannah
+Nanjekye
+
+..
+
+.. bpo: 29183
+.. date: 2019-04-22-22-55-29
+.. nonce: MILvsk
+.. section: Library
+
+Fix double exceptions in :class:`wsgiref.handlers.BaseHandler` by calling
+its :meth:`~wsgiref.handlers.BaseHandler.close` method only when no
+exception is raised.
+
+..
+
+.. bpo: 36548
+.. date: 2019-04-07-14-30-10
+.. nonce: CJQiYw
+.. section: Library
+
+Improved the repr of regular expression flags.
+
+..
+
+.. bpo: 36542
+.. date: 2019-04-06-12-36-09
+.. nonce: Q0qyYV
+.. section: Library
+
+The signature of Python functions can now be overridden by specifying the
+``__text_signature__`` attribute.
+
+..
+
+.. bpo: 36533
+.. date: 2019-04-06-00-55-09
+.. nonce: kzMyRH
+.. section: Library
+
+Reinitialize logging.Handler locks in forked child processes instead of
+attempting to acquire them all in the parent before forking only to be
+released in the child process. The acquire/release pattern was leading to
+deadlocks in code that has implemented any form of chained logging handlers
+that depend upon one another as the lock acquisition order cannot be
+guaranteed.
+
+..
+
+.. bpo: 35252
+.. date: 2019-04-02-19-23-12
+.. nonce: VooTVv
+.. section: Library
+
+Throw a TypeError instead of an AssertionError when using an invalid type
+annotation with singledispatch.
+
+..
+
+.. bpo: 35900
+.. date: 2019-03-27-15-09-00
+.. nonce: fh56UU
+.. section: Library
+
+Allow reduction methods to return a 6-item tuple where the 6th item
+specifies a custom state-setting method that's called instead of the regular
+``__setstate__`` method.
+
+..
+
+.. bpo: 35900
+.. date: 2019-03-22-22-40-00
+.. nonce: oiee0o
+.. section: Library
+
+enable custom reduction callback registration for functions and classes in
+_pickle.c, using the new Pickler's attribute ``reducer_override``
+
+..
+
+.. bpo: 36368
+.. date: 2019-03-21-16-00-00
+.. nonce: zsRT1
+.. section: Library
+
+Fix a bug crashing SharedMemoryManager instances in interactive sessions
+after a ctrl-c (KeyboardInterrupt) was sent
+
+..
+
+.. bpo: 31904
+.. date: 2019-03-18-14-25-36
+.. nonce: ds3d67
+.. section: Library
+
+Fix mmap fail for VxWorks
+
+..
+
+.. bpo: 27497
+.. date: 2019-03-13-10-57-41
+.. nonce: JDmIe_
+.. section: Library
+
+:meth:`csv.DictWriter.writeheader` now returns the return value of the
+underlying :meth:`csv.Writer.writerow` method. Patch contributed by Ashish
+Nitin Patil.
+
+..
+
+.. bpo: 36239
+.. date: 2019-03-09-23-51-27
+.. nonce: BHJ3Ln
+.. section: Library
+
+Parsing .mo files now ignores comments starting and ending with #-#-#-#-#.
+
+..
+
+.. bpo: 26707
+.. date: 2019-03-04-01-28-33
+.. nonce: QY4kRZ
+.. section: Library
+
+Enable plistlib to read and write binary plist files that were created as a
+KeyedArchive file. Specifically, this allows the plistlib to process 0x80
+tokens as UID objects.
+
+..
+
+.. bpo: 31904
+.. date: 2019-03-01-17-59-39
+.. nonce: 38djdk
+.. section: Library
+
+Add posix module support for VxWorks.
+
+..
+
+.. bpo: 35125
+.. date: 2019-02-15-17-18-50
+.. nonce: h0xk0f
+.. section: Library
+
+Asyncio: Remove inner callback on outer cancellation in shield
+
+..
+
+.. bpo: 35721
+.. date: 2019-01-18-16-23-00
+.. nonce: d8djAJ
+.. section: Library
+
+Fix :meth:`asyncio.SelectorEventLoop.subprocess_exec()` leaks file
+descriptors if ``Popen`` fails and called with ``stdin=subprocess.PIPE``.
+Patch by Niklas Fiekas.
+
+..
+
+.. bpo: 31855
+.. date: 2019-01-11-17-09-15
+.. nonce: PlhfsX
+.. section: Library
+
+:func:`unittest.mock.mock_open` results now respects the argument of
+read([size]). Patch contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 35431
+.. date: 2019-01-02-19-48-23
+.. nonce: FhG6QA
+.. section: Library
+
+Implement :func:`math.comb` that returns binomial coefficient, that computes
+the number of ways to choose k items from n items without repetition and
+without order. Patch by Yash Aggarwal and Keller Fuchs.
+
+..
+
+.. bpo: 26660
+.. date: 2018-11-04-16-39-46
+.. nonce: RdXz8a
+.. section: Library
+
+Fixed permission errors in :class:`~tempfile.TemporaryDirectory` clean up.
+Previously ``TemporaryDirectory.cleanup()`` failed when non-writeable or
+non-searchable files or directories were created inside a temporary
+directory.
+
+..
+
+.. bpo: 34271
+.. date: 2018-10-21-17-39-32
+.. nonce: P15VLM
+.. section: Library
+
+Add debugging helpers to ssl module. It's now possible to dump key material
+and to trace TLS protocol. The default and stdlib contexts also support
+SSLKEYLOGFILE env var.
+
+..
+
+.. bpo: 26467
+.. date: 2018-09-13-20-33-24
+.. nonce: cahAk3
+.. section: Library
+
+Added AsyncMock to support using unittest to mock asyncio coroutines. Patch
+by Lisa Roach.
+
+..
+
+.. bpo: 33569
+.. date: 2018-08-28-03-00-12
+.. nonce: 45YlGG
+.. section: Library
+
+dataclasses.InitVar: Exposes the type used to create the init var.
+
+..
+
+.. bpo: 34424
+.. date: 2018-08-18-14-47-00
+.. nonce: wAlRuS
+.. section: Library
+
+Fix serialization of messages containing encoded strings when the
+policy.linesep is set to a multi-character string. Patch by Jens Troeger.
+
+..
+
+.. bpo: 34303
+.. date: 2018-08-03-09-47-20
+.. nonce: tOE2HP
+.. section: Library
+
+Performance of :func:`functools.reduce` is slightly improved. Patch by
+Sergey Fedoseev.
+
+..
+
+.. bpo: 33361
+.. date: 2018-07-13-20-17-17
+.. nonce: dx2NVn
+.. section: Library
+
+Fix a bug in :class:`codecs.StreamRecoder` where seeking might leave old
+data in a buffer and break subsequent read calls. Patch by Ammar Askar.
+
+..
+
+.. bpo: 22454
+.. date: 2018-06-10-17-48-07
+.. nonce: qeiy_X
+.. section: Library
+
+The :mod:`shlex` module now exposes :func:`shlex.join`, the inverse of
+:func:`shlex.split`. Patch by Bo Bayles.
+
+..
+
+.. bpo: 31922
+.. date: 2018-05-30-01-05-50
+.. nonce: fobsXJ
+.. section: Library
+
+:meth:`asyncio.AbstractEventLoop.create_datagram_endpoint`: Do not connect
+UDP socket when broadcast is allowed. This allows to receive replies after a
+UDP broadcast.
+
+..
+
+.. bpo: 24882
+.. date: 2018-04-04-14-54-30
+.. nonce: urybpa
+.. section: Library
+
+Change ThreadPoolExecutor to use existing idle threads before spinning up
+new ones.
+
+..
+
+.. bpo: 31961
+.. date: 2018-03-27-13-28-16
+.. nonce: GjLoYu
+.. section: Library
+
+Added support for bytes and path-like objects in :func:`subprocess.Popen` on
+Windows. The *args* parameter now accepts a :term:`path-like object` if
+*shell* is ``False`` and a sequence containing bytes and path-like objects.
+The *executable* parameter now accepts a bytes and :term:`path-like object`.
+The *cwd* parameter now accepts a bytes object. Based on patch by Anders
+Lorentsen.
+
+..
+
+.. bpo: 33123
+.. date: 2018-03-22-19-13-19
+.. nonce: _Y5ooE
+.. section: Library
+
+:class:`pathlib.Path.unlink` now accepts a *missing_ok* parameter to avoid a
+:exc:`FileNotFoundError` from being raised. Patch by Robert Buchholz.
+
+..
+
+.. bpo: 32941
+.. date: 2018-03-20-20-57-00
+.. nonce: 9FU0gL
+.. section: Library
+
+Allow :class:`mmap.mmap` objects to access the madvise() system call
+(through :meth:`mmap.mmap.madvise`).
+
+..
+
+.. bpo: 22102
+.. date: 2018-03-08-16-15-00
+.. nonce: th33uD
+.. section: Library
+
+Added support for ZIP files with disks set to 0. Such files are commonly
+created by builtin tools on Windows when use ZIP64 extension. Patch by
+Francisco Facioni.
+
+..
+
+.. bpo: 32515
+.. date: 2018-01-07-21-04-50
+.. nonce: D8_Wcb
+.. section: Library
+
+trace.py can now run modules via python3 -m trace -t --module module_name
+
+..
+
+.. bpo: 32299
+.. date: 2017-12-13-17-49-56
+.. nonce: eqAPWs
+.. section: Library
+
+Changed :func:`unittest.mock.patch.dict` to return the patched dictionary
+when used as context manager. Patch by Vadim Tsander.
+
+..
+
+.. bpo: 27141
+.. date: 2017-10-24-00-42-14
+.. nonce: zbAgSs
+.. section: Library
+
+Added a ``__copy__()`` to ``collections.UserList`` and
+``collections.UserDict`` in order to correctly implement shallow copying of
+the objects. Patch by Bar Harel.
+
+..
+
+.. bpo: 31829
+.. date: 2017-10-21-12-07-56
+.. nonce: 6IhP-O
+.. section: Library
+
+``\r``, ``\0`` and ``\x1a`` (end-of-file on Windows) are now escaped in
+protocol 0 pickles of Unicode strings. This allows to load them without loss
+from files open in text mode in Python 2.
+
+..
+
+.. bpo: 23395
+.. date: 2016-07-27-11-06-43
+.. nonce: MuCEX9
+.. section: Library
+
+``_thread.interrupt_main()`` now avoids setting the Python error status if
+the ``SIGINT`` signal is ignored or not handled by Python.
+
+..
+
+.. bpo: 36896
+.. date: 2019-05-31-10-46-36
+.. nonce: wkXTW9
+.. section: Documentation
+
+Clarify that some types have unstable constructor signature between Python
+versions.
+
+..
+
+.. bpo: 36686
+.. date: 2019-05-27-17-28-58
+.. nonce: Zot4sx
+.. section: Documentation
+
+Improve documentation of the stdin, stdout, and stderr arguments of the
+``asyncio.subprocess_exec`` function to specify which values are supported.
+Also mention that decoding as text is not supported.
+
+Add a few tests to verify that the various values passed to the std*
+arguments actually work.
+
+..
+
+.. bpo: 36984
+.. date: 2019-05-20-22-21-17
+.. nonce: IjZlmS
+.. section: Documentation
+
+Improve version added references in ``typing`` module - by Anthony Sottile.
+
+..
+
+.. bpo: 36868
+.. date: 2019-05-11-17-42-15
+.. nonce: yioL0R
+.. section: Documentation
+
+What's new now mentions SSLContext.hostname_checks_common_name instead of
+SSLContext.host_flags.
+
+..
+
+.. bpo: 35924
+.. date: 2019-05-08-13-17-44
+.. nonce: lqbNpW
+.. section: Documentation
+
+Add a note to the ``curses.addstr()`` documentation to warn that multiline
+strings can cause segfaults because of an ncurses bug.
+
+..
+
+.. bpo: 36783
+.. date: 2019-05-07-02-30-51
+.. nonce: gpC8E2
+.. section: Documentation
+
+Added C API Documentation for Time_FromTimeAndFold and
+PyDateTime_FromDateAndTimeAndFold as per PEP 495. Patch by Edison Abahurire.
+
+..
+
+.. bpo: 36797
+.. date: 2019-05-05-07-58-50
+.. nonce: W1X4On
+.. section: Documentation
+
+More of the legacy distutils documentation has been either pruned, or else
+more clearly marked as being retained solely until the setuptools
+documentation covers it independently.
+
+..
+
+.. bpo: 22865
+.. date: 2019-02-21-18-13-50
+.. nonce: 6hg6J8
+.. section: Documentation
+
+Add detail to the documentation on the `pty.spawn` function.
+
+..
+
+.. bpo: 35397
+.. date: 2019-01-09-17-56-35
+.. nonce: ZMreIz
+.. section: Documentation
+
+Remove deprecation and document urllib.parse.unwrap(). Patch contributed by
+Rémi Lapeyre.
+
+..
+
+.. bpo: 32995
+.. date: 2018-10-07-03-04-57
+.. nonce: TXN9ur
+.. section: Documentation
+
+Added the context variable in glossary.
+
+..
+
+.. bpo: 33519
+.. date: 2018-05-17-21-02-00
+.. nonce: Q7s2FB
+.. section: Documentation
+
+Clarify that `copy()` is not part of the `MutableSequence` ABC.
+
+..
+
+.. bpo: 33482
+.. date: 2018-05-13-10-36-37
+.. nonce: jalAaQ
+.. section: Documentation
+
+Make `codecs.StreamRecoder.writelines` take a list of bytes.
+
+..
+
+.. bpo: 25735
+.. date: 2018-04-08-19-09-22
+.. nonce: idVQBD
+.. section: Documentation
+
+Added documentation for func factorial to indicate that returns integer
+values
+
+..
+
+.. bpo: 20285
+.. date: 2017-12-08-20-30-37
+.. nonce: cfnp0J
+.. section: Documentation
+
+Expand object.__doc__ (docstring) to make it clearer. Modify pydoc.py so
+that help(object) lists object methods (for other classes, help omits
+methods of the object base class.)
+
+..
+
+.. bpo: 37069
+.. date: 2019-06-03-02-30-36
+.. nonce: rVtdLk
+.. section: Tests
+
+Modify test_coroutines, test_cprofile, test_generators, test_raise, test_ssl
+and test_yield_from to use :func:`test.support.catch_unraisable_exception`
+rather than :func:`test.support.captured_stderr`.
+
+..
+
+.. bpo: 37098
+.. date: 2019-05-30-10-57-39
+.. nonce: SfXt1M
+.. section: Tests
+
+Fix test_memfd_create on older Linux Kernels.
+
+..
+
+.. bpo: 37081
+.. date: 2019-05-28-17-48-22
+.. nonce: qxB-1l
+.. section: Tests
+
+Test with OpenSSL 1.1.1c
+
+..
+
+.. bpo: 36829
+.. date: 2019-05-22-12-57-15
+.. nonce: e9mRWC
+.. section: Tests
+
+Add :func:`test.support.catch_unraisable_exception`: context manager
+catching unraisable exception using :func:`sys.unraisablehook`.
+
+..
+
+.. bpo: 36915
+.. date: 2019-05-14-14-12-24
+.. nonce: 58b7pH
+.. section: Tests
+
+The main regrtest process now always removes all temporary directories of
+worker processes even if they crash or if they are killed on
+KeyboardInterrupt (CTRL+c).
+
+..
+
+.. bpo: 36719
+.. date: 2019-05-10-01-50-30
+.. nonce: O84ZWv
+.. section: Tests
+
+"python3 -m test -jN ..." now continues the execution of next tests when a
+worker process crash (CHILD_ERROR state). Previously, the test suite stopped
+immediately. Use --failfast to stop at the first error.
+
+..
+
+.. bpo: 36816
+.. date: 2019-05-08-15-55-46
+.. nonce: WBKRGZ
+.. section: Tests
+
+Update Lib/test/selfsigned_pythontestdotnet.pem to match
+self-signed.pythontest.net's new TLS certificate.
+
+..
+
+.. bpo: 35925
+.. date: 2019-05-06-18-29-54
+.. nonce: gwQPuC
+.. section: Tests
+
+Skip httplib and nntplib networking tests when they would otherwise fail due
+to a modern OS or distro with a default OpenSSL policy of rejecting
+connections to servers with weak certificates.
+
+..
+
+.. bpo: 36782
+.. date: 2019-05-04-21-25-19
+.. nonce: h3oPIb
+.. section: Tests
+
+Add tests for several C API functions in the :mod:`datetime` module. Patch
+by Edison Abahurire.
+
+..
+
+.. bpo: 36342
+.. date: 2019-03-23-13-58-49
+.. nonce: q6Quiq
+.. section: Tests
+
+Fix test_multiprocessing in test_venv if platform lacks functioning
+sem_open.
+
+..
+
+.. bpo: 36721
+.. date: 2019-05-22-16-19-18
+.. nonce: 9aRwfZ
+.. section: Build
+
+To embed Python into an application, a new ``--embed`` option must be passed
+to ``python3-config --libs --embed`` to get ``-lpython3.8`` (link the
+application to libpython). To support both 3.8 and older, try
+``python3-config --libs --embed`` first and fallback to ``python3-config
+--libs`` (without ``--embed``) if the previous command fails.
+
+Add a pkg-config ``python-3.8-embed`` module to embed Python into an
+application: ``pkg-config python-3.8-embed --libs`` includes
+``-lpython3.8``. To support both 3.8 and older, try ``pkg-config
+python-X.Y-embed --libs`` first and fallback to ``pkg-config python-X.Y
+--libs`` (without ``--embed``) if the previous command fails (replace
+``X.Y`` with the Python version).
+
+On the other hand, ``pkg-config python3.8 --libs`` no longer contains
+``-lpython3.8``. C extensions must not be linked to libpython (except on
+Android, case handled by the script); this change is backward incompatible
+on purpose.
+
+..
+
+.. bpo: 36786
+.. date: 2019-05-03-21-08-06
+.. nonce: gOLFbD
+.. section: Build
+
+"make install" now runs compileall in parallel.
+
+..
+
+.. bpo: 36965
+.. date: 2019-05-20-20-26-36
+.. nonce: KsfI-N
+.. section: Windows
+
+include of STATUS_CONTROL_C_EXIT without depending on MSC compiler
+
+..
+
+.. bpo: 35926
+.. date: 2019-03-01-16-43-45
+.. nonce: mLszHo
+.. section: Windows
+
+Update to OpenSSL 1.1.1b for Windows.
+
+..
+
+.. bpo: 29883
+.. date: 2018-09-15-11-36-55
+.. nonce: HErerE
+.. section: Windows
+
+Add Windows support for UDP transports for the Proactor Event Loop. Patch by
+Adam Meily.
+
+..
+
+.. bpo: 33407
+.. date: 2018-08-28-17-23-49
+.. nonce: ARG0W_
+.. section: Windows
+
+The :c:macro:`Py_DEPRECATED()` macro has been implemented for MSVC.
+
+..
+
+.. bpo: 36231
+.. date: 2019-06-03-05-49-49
+.. nonce: RfmW_p
+.. section: macOS
+
+Support building Python on macOS without /usr/include installed. As of macOS
+10.14, system header files are only available within an SDK provided by
+either the Command Line Tools or the Xcode app.
+
+..
+
+.. bpo: 35610
+.. date: 2019-06-02-14-10-52
+.. nonce: 0w_v6Y
+.. section: IDLE
+
+Replace now redundant .context_use_ps1 with .prompt_last_line. This finishes
+change started in bpo-31858.
+
+..
+
+.. bpo: 37038
+.. date: 2019-05-24-18-57-57
+.. nonce: AJ3RwQ
+.. section: IDLE
+
+Make idlelib.run runnable; add test clause.
+
+..
+
+.. bpo: 36958
+.. date: 2019-05-19-22-02-22
+.. nonce: DZUC6G
+.. section: IDLE
+
+Print any argument other than None or int passed to SystemExit or
+sys.exit().
+
+..
+
+.. bpo: 36807
+.. date: 2019-05-05-16-27-53
+.. nonce: AGNWYJ
+.. section: IDLE
+
+When saving a file, call os.fsync() so bits are flushed to e.g. USB drive.
+
+..
+
+.. bpo: 32411
+.. date: 2017-12-25-18-48-50
+.. nonce: vNwDhe
+.. section: IDLE
+
+In browser.py, remove extraneous sorting by line number since dictionary was
+created in line number order.
+
+..
+
+.. bpo: 37053
+.. date: 2019-05-26-16-47-06
+.. nonce: -EYRuz
+.. section: Tools/Demos
+
+Handle strings like u"bar" correctly in Tools/parser/unparse.py. Patch by
+Chih-Hsuan Yen.
+
+..
+
+.. bpo: 36763
+.. date: 2019-05-27-12-25-25
+.. nonce: bHCA9j
+.. section: C API
+
+Implement the :pep:`587` "Python Initialization Configuration".
+
+..
+
+.. bpo: 36379
+.. date: 2019-05-24-07-11-08
+.. nonce: 8zgoKe
+.. section: C API
+
+Fix crashes when attempting to use the *modulo* parameter when ``__ipow__``
+is implemented in C.
+
+..
+
+.. bpo: 37107
+.. date: 2019-05-22-17-33-52
+.. nonce: 8BVPR-
+.. section: C API
+
+Update :c:func:`PyObject_CallMethodObjArgs` and
+``_PyObject_CallMethodIdObjArgs`` to use ``_PyObject_GetMethod`` to avoid
+creating a bound method object in many cases. Patch by Michael J. Sullivan.
+
+..
+
+.. bpo: 36974
+.. date: 2019-05-22-15-24-08
+.. nonce: TkySRe
+.. section: C API
+
+Implement :pep:`590`: Vectorcall: a fast calling protocol for CPython. This
+is a new protocol to optimize calls of custom callable objects.
+
+..
+
+.. bpo: 36763
+.. date: 2019-05-17-19-23-24
+.. nonce: TswmDy
+.. section: C API
+
+``Py_Main()`` now returns the exitcode rather than calling
+``Py_Exit(exitcode)`` when calling ``PyErr_Print()`` if the current
+exception type is ``SystemExit``.
+
+..
+
+.. bpo: 36922
+.. date: 2019-05-15-10-46-55
+.. nonce: J3EFK_
+.. section: C API
+
+Add new type flag ``Py_TPFLAGS_METHOD_DESCRIPTOR`` for objects behaving like
+unbound methods. These are objects supporting the optimization given by the
+``LOAD_METHOD``/``CALL_METHOD`` opcodes. See PEP 590.
+
+..
+
+.. bpo: 36728
+.. date: 2019-05-11-03-56-23
+.. nonce: FR-dMP
+.. section: C API
+
+The :c:func:`PyEval_ReInitThreads` function has been removed from the C API.
+It should not be called explicitly: use :c:func:`PyOS_AfterFork_Child`
+instead.
--- /dev/null
+.. bpo: 38722
+.. date: 2019-11-18-16-17-56
+.. nonce: x3mECW
+.. release date: 2019-11-19
+.. section: Security
+
+:mod:`runpy` now uses :meth:`io.open_code` to open code files. Patch by
+Jason Killen.
+
+..
+
+.. bpo: 38622
+.. date: 2019-11-14-16-13-23
+.. nonce: 3DYkfb
+.. section: Security
+
+Add additional audit events for the :mod:`ctypes` module.
+
+..
+
+.. bpo: 38418
+.. date: 2019-10-08-19-29-55
+.. nonce: QL7s0-
+.. section: Security
+
+Fixes audit event for :func:`os.system` to be named ``os.system``.
+
+..
+
+.. bpo: 38243
+.. date: 2019-09-25-13-21-09
+.. nonce: 1pfz24
+.. section: Security
+
+Escape the server title of :class:`xmlrpc.server.DocXMLRPCServer` when
+rendering the document page as HTML. (Contributed by Dong-hee Na in
+:issue:`38243`.)
+
+..
+
+.. bpo: 38174
+.. date: 2019-09-23-21-02-46
+.. nonce: MeWuJd
+.. section: Security
+
+Update vendorized expat library version to 2.2.8, which resolves
+CVE-2019-15903.
+
+..
+
+.. bpo: 37764
+.. date: 2019-08-27-01-13-05
+.. nonce: qv67PQ
+.. section: Security
+
+Fixes email._header_value_parser.get_unstructured going into an infinite
+loop for a specific case in which the email header does not have trailing
+whitespace, and the case in which it contains an invalid encoded word. Patch
+by Ashwin Ramaswami.
+
+..
+
+.. bpo: 37461
+.. date: 2019-07-16-08-11-00
+.. nonce: 1Ahz7O
+.. section: Security
+
+Fix an infinite loop when parsing specially crafted email headers. Patch by
+Abhilash Raj.
+
+..
+
+.. bpo: 37363
+.. date: 2019-07-01-10-31-14
+.. nonce: fSjatj
+.. section: Security
+
+Adds audit events for the range of supported run commands (see
+:ref:`using-on-general`).
+
+..
+
+.. bpo: 37463
+.. date: 2019-07-01-08-46-14
+.. nonce: 1CHwjE
+.. section: Security
+
+ssl.match_hostname() no longer accepts IPv4 addresses with additional text
+after the address and only quad-dotted notation without trailing
+whitespaces. Some inet_aton() implementations ignore whitespace and all data
+after whitespace, e.g. '127.0.0.1 whatever'.
+
+..
+
+.. bpo: 37363
+.. date: 2019-06-21-15-58-59
+.. nonce: diouyl
+.. section: Security
+
+Adds audit events for :mod:`ensurepip`, :mod:`ftplib`, :mod:`glob`,
+:mod:`imaplib`, :mod:`nntplib`, :mod:`pdb`, :mod:`poplib`, :mod:`shutil`,
+:mod:`smtplib`, :mod:`sqlite3`, :mod:`subprocess`, :mod:`telnetlib`,
+:mod:`tempfile` and :mod:`webbrowser`, as well as :func:`os.listdir`,
+:func:`os.scandir` and :func:`breakpoint`.
+
+..
+
+.. bpo: 37364
+.. date: 2019-06-21-14-42-53
+.. nonce: IIRc2s
+.. section: Security
+
+:func:`io.open_code` is now used when reading :file:`.pth` files.
+
+..
+
+.. bpo: 34631
+.. date: 2019-06-17-09-34-25
+.. nonce: DBfM4j
+.. section: Security
+
+Updated OpenSSL to 1.1.1c in Windows installer
+
+..
+
+.. bpo: 34155
+.. date: 2019-05-04-13-33-37
+.. nonce: MJll68
+.. section: Security
+
+Fix parsing of invalid email addresses with more than one ``@`` (e.g.
+a@b@c.com.) to not return the part before 2nd ``@`` as valid email address.
+Patch by maxking & jpic.
+
+..
+
+.. bpo: 38631
+.. date: 2019-11-18-17-10-20
+.. nonce: tRHaAk
+.. section: Core and Builtins
+
+Replace ``Py_FatalError()`` call with a regular :exc:`RuntimeError`
+exception in :meth:`float.__getformat__`.
+
+..
+
+.. bpo: 38639
+.. date: 2019-10-30-11-31-47
+.. nonce: 9-vKtO
+.. section: Core and Builtins
+
+Optimized :func:`math.floor()`, :func:`math.ceil()` and :func:`math.trunc()`
+for floats.
+
+..
+
+.. bpo: 38640
+.. date: 2019-10-30-11-25-25
+.. nonce: 4sAFh5
+.. section: Core and Builtins
+
+Fixed a bug in the compiler that was causing to raise in the presence of
+break statements and continue statements inside always false while loops.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 38613
+.. date: 2019-10-29-15-44-24
+.. nonce: V_R3NC
+.. section: Core and Builtins
+
+Optimized some set operations (e.g. ``|``, ``^``, and ``-``) of
+``dict_keys``. ``d.keys() | other`` was slower than ``set(d) | other`` but
+they are almost same performance for now.
+
+..
+
+.. bpo: 28029
+.. date: 2019-10-29-09-38-54
+.. nonce: AmRMEF
+.. section: Core and Builtins
+
+``"".replace("", s, n)`` now returns ``s`` instead of an empty string for
+all non-zero ``n``. There are similar changes for :class:`bytes` and
+:class:`bytearray` objects.
+
+..
+
+.. bpo: 38535
+.. date: 2019-10-20-12-43-48
+.. nonce: ESMkVN
+.. section: Core and Builtins
+
+Fixed line numbers and column offsets for AST nodes for calls without
+arguments in decorators.
+
+..
+
+.. bpo: 38525
+.. date: 2019-10-20-00-36-18
+.. nonce: Vty1cA
+.. section: Core and Builtins
+
+Fix a segmentation fault when using reverse iterators of empty ``dict``
+objects. Patch by Dong-hee Na and Inada Naoki.
+
+..
+
+.. bpo: 38465
+.. date: 2019-10-19-12-44-13
+.. nonce: V1L8c4
+.. section: Core and Builtins
+
+:class:`bytearray`, :class:`~array.array` and :class:`~mmap.mmap` objects
+allow now to export more than ``2**31`` buffers at a time.
+
+..
+
+.. bpo: 38469
+.. date: 2019-10-13-23-41-38
+.. nonce: 9kmuQj
+.. section: Core and Builtins
+
+Fixed a bug where the scope of named expressions was not being resolved
+correctly in the presence of the *global* keyword. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 38437
+.. date: 2019-10-10-20-42-09
+.. nonce: z_0mZp
+.. section: Core and Builtins
+
+Activate the ``GC_DEBUG`` macro for debug builds of the interpreter (when
+``Py_DEBUG`` is set). Patch by Pablo Galindo.
+
+..
+
+.. bpo: 38379
+.. date: 2019-10-10-01-41-02
+.. nonce: _q4dhn
+.. section: Core and Builtins
+
+When the garbage collector makes a collection in which some objects
+resurrect (they are reachable from outside the isolated cycles after the
+finalizers have been executed), do not block the collection of all objects
+that are still unreachable. Patch by Pablo Galindo and Tim Peters.
+
+..
+
+.. bpo: 38379
+.. date: 2019-10-09-16-50-52
+.. nonce: oz5qZx
+.. section: Core and Builtins
+
+When cyclic garbage collection (gc) runs finalizers that resurrect
+unreachable objects, the current gc run ends, without collecting any cyclic
+trash. However, the statistics reported by ``collect()`` and
+``get_stats()`` claimed that all cyclic trash found was collected, and that
+the resurrected objects were collected. Changed the stats to report that
+none were collected.
+
+..
+
+.. bpo: 38392
+.. date: 2019-10-07-22-51-39
+.. nonce: KaXXps
+.. section: Core and Builtins
+
+In debug mode, :c:func:`PyObject_GC_Track` now calls ``tp_traverse()`` of
+the object type to ensure that the object is valid: test that objects
+visited by ``tp_traverse()`` are valid.
+
+..
+
+.. bpo: 38210
+.. date: 2019-10-06-15-01-57
+.. nonce: Xgc6F_
+.. section: Core and Builtins
+
+Remove unnecessary intersection and update set operation in dictview with
+empty set. (Contributed by Dong-hee Na in :issue:`38210`.)
+
+..
+
+.. bpo: 38402
+.. date: 2019-10-05-19-36-16
+.. nonce: EZuzgK
+.. section: Core and Builtins
+
+Check the error from the system's underlying ``crypt`` or ``crypt_r``.
+
+..
+
+.. bpo: 37474
+.. date: 2019-10-01-12-46-30
+.. nonce: cB3se1
+.. section: Core and Builtins
+
+On FreeBSD, Python no longer calls ``fedisableexcept()`` at startup to
+control the floating point control mode. The call became useless since
+FreeBSD 6: it became the default mode.
+
+..
+
+.. bpo: 38006
+.. date: 2019-09-30-09-33-21
+.. nonce: UYlJum
+.. section: Core and Builtins
+
+Fix a bug due to the interaction of weakrefs and the cyclic garbage
+collector. We must clear any weakrefs in garbage in order to prevent their
+callbacks from executing and causing a crash.
+
+..
+
+.. bpo: 38317
+.. date: 2019-09-30-00-56-21
+.. nonce: pmqlIQ
+.. section: Core and Builtins
+
+Fix warnings options priority: ``PyConfig.warnoptions`` has the highest
+priority, as stated in the :pep:`587`.
+
+..
+
+.. bpo: 38310
+.. date: 2019-09-28-22-54-25
+.. nonce: YDTbEo
+.. section: Core and Builtins
+
+Predict ``BUILD_MAP_UNPACK_WITH_CALL`` -> ``CALL_FUNCTION_EX`` opcode pairs
+in the main interpreter loop. Patch by Brandt Bucher.
+
+..
+
+.. bpo: 36871
+.. date: 2019-09-24-18-45-46
+.. nonce: p47knk
+.. section: Core and Builtins
+
+Improve error handling for the assert_has_calls and assert_has_awaits
+methods of mocks. Fixed a bug where any errors encountered while binding the
+expected calls to the mock's spec were silently swallowed, leading to
+misleading error output.
+
+..
+
+.. bpo: 11410
+.. date: 2019-09-24-05-32-27
+.. nonce: vS182p
+.. section: Core and Builtins
+
+Better control over symbol visibility is provided through use of the
+visibility attributes available in gcc >= 4.0, provided in a uniform way
+across POSIX and Windows. The POSIX build files have been updated to compile
+with -fvisibility=hidden, minimising exported symbols.
+
+..
+
+.. bpo: 38219
+.. date: 2019-09-22-13-56-18
+.. nonce: rFl7JD
+.. section: Core and Builtins
+
+Optimized the :class:`dict` constructor and the :meth:`~dict.update` method
+for the case when the argument is a dict.
+
+..
+
+.. bpo: 38236
+.. date: 2019-09-20-19-06-23
+.. nonce: eQ0Tmj
+.. section: Core and Builtins
+
+Python now dumps path configuration if it fails to import the Python codecs
+of the filesystem and stdio encodings.
+
+..
+
+.. bpo: 38013
+.. date: 2019-09-12-19-50-01
+.. nonce: I7btD0
+.. section: Core and Builtins
+
+Allow to call ``async_generator_athrow().throw(...)`` even for non-started
+async generator helper. It fixes annoying warning at the end of
+:func:`asyncio.run` call.
+
+..
+
+.. bpo: 38124
+.. date: 2019-09-12-00-14-01
+.. nonce: n6E0H7
+.. section: Core and Builtins
+
+Fix an off-by-one error in PyState_AddModule that could cause out-of-bounds
+memory access.
+
+..
+
+.. bpo: 38116
+.. date: 2019-09-11-14-49-42
+.. nonce: KDwmwt
+.. section: Core and Builtins
+
+The select module is now PEP-384 compliant and no longer has static state
+
+..
+
+.. bpo: 38113
+.. date: 2019-09-11-14-10-02
+.. nonce: yZXC3P
+.. section: Core and Builtins
+
+ast module updated to PEP-384 and all statics removed
+
+..
+
+.. bpo: 38076
+.. date: 2019-09-09-16-36-37
+.. nonce: C5dVBl
+.. section: Core and Builtins
+
+The struct module is now PEP-384 compatible
+
+..
+
+.. bpo: 38075
+.. date: 2019-09-09-15-59-50
+.. nonce: N8OZKF
+.. section: Core and Builtins
+
+The random module is now PEP-384 compatible
+
+..
+
+.. bpo: 38074
+.. date: 2019-09-09-15-40-57
+.. nonce: MsVbeI
+.. section: Core and Builtins
+
+zlib module made PEP-384 compatible
+
+..
+
+.. bpo: 38073
+.. date: 2019-09-09-15-17-58
+.. nonce: ZoKYOU
+.. section: Core and Builtins
+
+Make pwd extension module PEP-384 compatible
+
+..
+
+.. bpo: 38072
+.. date: 2019-09-09-15-00-42
+.. nonce: Y1xpDO
+.. section: Core and Builtins
+
+grp module made PEP-384 compatible
+
+..
+
+.. bpo: 38069
+.. date: 2019-09-09-14-46-05
+.. nonce: cn8XLv
+.. section: Core and Builtins
+
+Make _posixsubprocess PEP-384 compatible
+
+..
+
+.. bpo: 38071
+.. date: 2019-09-09-14-44-17
+.. nonce: bLwkBJ
+.. section: Core and Builtins
+
+Make termios extension module PEP-384 compatible
+
+..
+
+.. bpo: 38005
+.. date: 2019-09-02-20-00-31
+.. nonce: e7VsTA
+.. section: Core and Builtins
+
+Fixed comparing and creating of InterpreterID and ChannelID.
+
+..
+
+.. bpo: 36946
+.. date: 2019-09-02-16-17-42
+.. nonce: _lAuSR
+.. section: Core and Builtins
+
+Fix possible signed integer overflow when handling slices. Patch by
+hongweipeng.
+
+..
+
+.. bpo: 37994
+.. date: 2019-08-31-11-13-25
+.. nonce: Rj6S4j
+.. section: Core and Builtins
+
+Fixed silencing arbitrary errors if an attribute lookup fails in several
+sites. Only AttributeError should be silenced.
+
+..
+
+.. bpo: 8425
+.. date: 2019-08-29-01-55-38
+.. nonce: FTq4A8
+.. section: Core and Builtins
+
+Optimize set difference_update for the case when the other set is much
+larger than the base set. (Suggested by Evgeny Kapun with code contributed
+by Michele Orrù).
+
+..
+
+.. bpo: 37966
+.. date: 2019-08-27-21-21-36
+.. nonce: 5OBLez
+.. section: Core and Builtins
+
+The implementation of :func:`~unicodedata.is_normalized` has been greatly
+sped up on strings that aren't normalized, by implementing the full
+normalization-quick-check algorithm from the Unicode standard.
+
+..
+
+.. bpo: 37947
+.. date: 2019-08-26-04-09-57
+.. nonce: mzAQtB
+.. section: Core and Builtins
+
+Adjust correctly the recursion level in the symtable generation for named
+expressions. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 37812
+.. date: 2019-08-23-22-46-25
+.. nonce: vsWZwS
+.. section: Core and Builtins
+
+The ``CHECK_SMALL_INT`` macro used inside :file:`Object/longobject.c` has
+been replaced with an explicit ``return`` at each call site.
+
+..
+
+.. bpo: 37751
+.. date: 2019-08-20-04-36-37
+.. nonce: CSFzUd
+.. section: Core and Builtins
+
+Fix :func:`codecs.lookup` to normalize the encoding name the same way than
+:func:`encodings.normalize_encoding`, except that :func:`codecs.lookup` also
+converts the name to lower case.
+
+..
+
+.. bpo: 37830
+.. date: 2019-08-17-18-41-59
+.. nonce: fNfMbz
+.. section: Core and Builtins
+
+Fixed compilation of :keyword:`break` and :keyword:`continue` in the
+:keyword:`finally` block when the corresponding :keyword:`try` block
+contains :keyword:`return` with a non-constant value.
+
+..
+
+.. bpo: 20490
+.. date: 2019-08-15-12-48-36
+.. nonce: -hXeEn
+.. section: Core and Builtins
+
+Improve import error message for partially initialized module on circular
+``from`` imports - by Anthony Sottile.
+
+..
+
+.. bpo: 37840
+.. date: 2019-08-13-18-05-20
+.. nonce: elLCci
+.. section: Core and Builtins
+
+Fix handling of negative indices in :c:member:`~PySequenceMethods.sq_item`
+of :class:`bytearray`. Patch by Sergey Fedoseev.
+
+..
+
+.. bpo: 37802
+.. date: 2019-08-09-18-28-57
+.. nonce: pKxcAW
+.. section: Core and Builtins
+
+Slightly improve performance of :c:func:`PyLong_FromUnsignedLong`,
+:c:func:`PyLong_FromUnsignedLongLong` and :c:func:`PyLong_FromSize_t`. Patch
+by Sergey Fedoseev.
+
+..
+
+.. bpo: 37409
+.. date: 2019-08-06-23-39-05
+.. nonce: 1qwzn2
+.. section: Core and Builtins
+
+Ensure explicit relative imports from interactive sessions and scripts
+(having no parent package) always raise ImportError, rather than treating
+the current module as the package. Patch by Ben Lewis.
+
+..
+
+.. bpo: 32912
+.. date: 2019-08-06-14-03-59
+.. nonce: UDwSMJ
+.. section: Core and Builtins
+
+Reverted :issue:`32912`: emitting :exc:`SyntaxWarning` instead of
+:exc:`DeprecationWarning` for invalid escape sequences in string and bytes
+literals.
+
+..
+
+.. bpo: 37757
+.. date: 2019-08-05-14-22-59
+.. nonce: lRv5HX
+.. section: Core and Builtins
+
+:pep:`572`: As described in the PEP, assignment expressions now raise
+:exc:`SyntaxError` when their interaction with comprehension scoping results
+in an ambiguous target scope.
+
+The ``TargetScopeError`` subclass originally proposed by the PEP has been
+removed in favour of just raising regular syntax errors for the disallowed
+cases.
+
+..
+
+.. bpo: 36279
+.. date: 2019-08-04-12-24-18
+.. nonce: 8Zy7jZ
+.. section: Core and Builtins
+
+Fix potential use of uninitialized memory in :func:`os.wait3`.
+
+..
+
+.. bpo: 36311
+.. date: 2019-08-02-15-01-33
+.. nonce: uY5vt-
+.. section: Core and Builtins
+
+Decoding bytes objects larger than 2GiB is faster and no longer fails when a
+multibyte characters spans a chunk boundary.
+
+..
+
+.. bpo: 34880
+.. date: 2019-08-01-10-45-51
+.. nonce: u_x_CG
+.. section: Core and Builtins
+
+The :keyword:`assert` statement now works properly if the
+:exc:`AssertionError` exception is being shadowed. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 37340
+.. date: 2019-07-25-11-06-57
+.. nonce: 5ktLEg
+.. section: Core and Builtins
+
+Removed object cache (``free_list``) for bound method objects. Temporary
+bound method objects are less used than before thanks to the ``LOAD_METHOD``
+opcode and the ``_PyObject_VectorcallMethod`` C API.
+
+..
+
+.. bpo: 37648
+.. date: 2019-07-22-11-05-05
+.. nonce: 6TY2L-
+.. section: Core and Builtins
+
+Fixed minor inconsistency in :meth:`list.__contains__`,
+:meth:`tuple.__contains__` and a few other places. The collection's item is
+now always at the left and the needle is on the right of ``==``.
+
+..
+
+.. bpo: 37444
+.. date: 2019-07-20-22-34-42
+.. nonce: UOd3Xs
+.. section: Core and Builtins
+
+Update differing exception between :meth:`builtins.__import__` and
+:meth:`importlib.__import__`.
+
+..
+
+.. bpo: 37619
+.. date: 2019-07-18-11-50-49
+.. nonce: X6Lulo
+.. section: Core and Builtins
+
+When adding a wrapper descriptor from one class to a different class (for
+example, setting ``__add__ = str.__add__`` on an ``int`` subclass), an
+exception is correctly raised when the operator is called.
+
+..
+
+.. bpo: 37593
+.. date: 2019-07-14-23-57-27
+.. nonce: yHSTwH
+.. section: Core and Builtins
+
+Swap the positions of the *posonlyargs* and *args* parameters in the
+constructor of :class:`ast.parameters` nodes.
+
+..
+
+.. bpo: 37543
+.. date: 2019-07-10-20-33-53
+.. nonce: EvI19D
+.. section: Core and Builtins
+
+Optimized pymalloc for non PGO build.
+
+..
+
+.. bpo: 37537
+.. date: 2019-07-10-09-56-47
+.. nonce: OkB0wd
+.. section: Core and Builtins
+
+Compute allocated pymalloc blocks inside _Py_GetAllocatedBlocks(). This
+slows down _Py_GetAllocatedBlocks() but gives a small speedup to
+_PyObject_Malloc() and _PyObject_Free().
+
+..
+
+.. bpo: 37467
+.. date: 2019-07-01-12-22-44
+.. nonce: u-XyEu
+.. section: Core and Builtins
+
+Fix :func:`sys.excepthook` and :c:func:`PyErr_Display` if a filename is a
+bytes string. For example, for a SyntaxError exception where the filename
+attribute is a bytes string.
+
+..
+
+.. bpo: 37433
+.. date: 2019-06-27-15-01-14
+.. nonce: amNGqr
+.. section: Core and Builtins
+
+Fix ``SyntaxError`` indicator printing too many spaces for multi-line
+strings - by Anthony Sottile.
+
+..
+
+.. bpo: 37417
+.. date: 2019-06-26-18-41-00
+.. nonce: VsZeHL
+.. section: Core and Builtins
+
+:meth:`bytearray.extend` now correctly handles errors that arise during
+iteration. Patch by Brandt Bucher.
+
+..
+
+.. bpo: 37414
+.. date: 2019-06-26-17-27-26
+.. nonce: o6Lnbc
+.. section: Core and Builtins
+
+The undocumented ``sys.callstats()`` function has been removed. Since Python
+3.7, it was deprecated and always returned ``None``. It required a special
+build option ``CALL_PROFILE`` which was already removed in Python 3.7.
+
+..
+
+.. bpo: 37392
+.. date: 2019-06-25-01-45-06
+.. nonce: J3JhIx
+.. section: Core and Builtins
+
+Remove ``sys.getcheckinterval()`` and ``sys.setcheckinterval()`` functions.
+They were deprecated since Python 3.2. Use :func:`sys.getswitchinterval` and
+:func:`sys.setswitchinterval` instead. Remove also ``check_interval`` field
+of the ``PyInterpreterState`` structure.
+
+..
+
+.. bpo: 37388
+.. date: 2019-06-24-21-53-52
+.. nonce: 0XTZmW
+.. section: Core and Builtins
+
+In development mode and in debug build, *encoding* and *errors* arguments
+are now checked on string encoding and decoding operations. Examples:
+:func:`open`, :meth:`str.encode` and :meth:`bytes.decode`.
+
+By default, for best performances, the *errors* argument is only checked at
+the first encoding/decoding error, and the *encoding* argument is sometimes
+ignored for empty strings.
+
+..
+
+.. bpo: 37348
+.. date: 2019-06-23-00-26-30
+.. nonce: pp8P-x
+.. section: Core and Builtins
+
+Optimized decoding short ASCII string with UTF-8 and ascii codecs.
+``b"foo".decode()`` is about 15% faster. Patch by Inada Naoki.
+
+..
+
+.. bpo: 24214
+.. date: 2019-06-22-12-45-20
+.. nonce: hIiHeD
+.. section: Core and Builtins
+
+Improved support of the surrogatepass error handler in the UTF-8 and UTF-16
+incremental decoders.
+
+..
+
+.. bpo: 37330
+.. date: 2019-06-18-17-53-06
+.. nonce: wAvHmz
+.. section: Core and Builtins
+
+:func:`open`, :func:`io.open`, :func:`codecs.open` and
+:class:`fileinput.FileInput` no longer accept ``'U'`` ("universal newline")
+in the file mode. This flag was deprecated since Python 3.3.
+
+..
+
+.. bpo: 35224
+.. date: 2019-06-17-06-03-55
+.. nonce: FHWPGv
+.. section: Core and Builtins
+
+Reverse evaluation order of key: value in dict comprehensions as proposed in
+PEP 572. I.e. in ``{k: v for ...}``, ``k`` will be evaluated before ``v``.
+
+..
+
+.. bpo: 37316
+.. date: 2019-06-17-03-53-16
+.. nonce: LytDX_
+.. section: Core and Builtins
+
+Fix the :c:func:`PySys_Audit` call in :class:`mmap.mmap`.
+
+..
+
+.. bpo: 37300
+.. date: 2019-06-16-02-38-25
+.. nonce: WJkgKV
+.. section: Core and Builtins
+
+Remove an unnecessary Py_XINCREF in classobject.c.
+
+..
+
+.. bpo: 37269
+.. date: 2019-06-14-06-32-33
+.. nonce: SjVVAe
+.. section: Core and Builtins
+
+Fix a bug in the peephole optimizer that was not treating correctly constant
+conditions with binary operators. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 20443
+.. date: 2019-06-13-12-55-38
+.. nonce: bQWAxg
+.. section: Core and Builtins
+
+Python now gets the absolute path of the script filename specified on the
+command line (ex: "python3 script.py"): the __file__ attribute of the
+__main__ module and sys.path[0] become an absolute path, rather than a
+relative path.
+
+..
+
+.. bpo: 37257
+.. date: 2019-06-13-02-27-12
+.. nonce: IMxDvT
+.. section: Core and Builtins
+
+Python's small object allocator (``obmalloc.c``) now allows (no more than)
+one empty arena to remain available for immediate reuse, without returning
+it to the OS. This prevents thrashing in simple loops where an arena could
+be created and destroyed anew on each iteration.
+
+..
+
+.. bpo: 37231
+.. date: 2019-06-12-14-39-16
+.. nonce: LF41Es
+.. section: Core and Builtins
+
+The dispatching of type slots to special methods (for example calling
+``__mul__`` when doing ``x * y``) has been made faster.
+
+..
+
+.. bpo: 36974
+.. date: 2019-06-11-12-59-38
+.. nonce: bVYmSA
+.. section: Core and Builtins
+
+Implemented separate vectorcall functions for every calling convention of
+builtin functions and methods. This improves performance for calls.
+
+..
+
+.. bpo: 37213
+.. date: 2019-06-11-11-15-19
+.. nonce: UPii5K
+.. section: Core and Builtins
+
+Handle correctly negative line offsets in the peephole optimizer. Patch by
+Pablo Galindo.
+
+..
+
+.. bpo: 37219
+.. date: 2019-06-10-23-18-31
+.. nonce: jPSufq
+.. section: Core and Builtins
+
+Remove erroneous optimization for empty set differences.
+
+..
+
+.. bpo: 15913
+.. date: 2019-06-06-20-52-38
+.. nonce: 5Sg5cv
+.. section: Core and Builtins
+
+Implement :c:func:`PyBuffer_SizeFromFormat()` function (previously
+documented but not implemented): call :func:`struct.calcsize`. Patch by
+Joannah Nanjekye.
+
+..
+
+.. bpo: 36922
+.. date: 2019-06-06-13-59-52
+.. nonce: EMZ3TF
+.. section: Core and Builtins
+
+Slot functions optimize any callable with ``Py_TPFLAGS_METHOD_DESCRIPTOR``
+instead of only instances of ``function``.
+
+..
+
+.. bpo: 36974
+.. date: 2019-06-06-11-00-55
+.. nonce: wdzzym
+.. section: Core and Builtins
+
+The slot ``tp_vectorcall_offset`` is inherited unconditionally to support
+``super().__call__()`` when the base class uses vectorcall.
+
+..
+
+.. bpo: 37160
+.. date: 2019-06-05-09-24-17
+.. nonce: O3IAY3
+.. section: Core and Builtins
+
+:func:`threading.get_native_id` now also supports NetBSD.
+
+..
+
+.. bpo: 37077
+.. date: 2019-05-28-11-47-44
+.. nonce: S1h0Fc
+.. section: Core and Builtins
+
+Add :func:`threading.get_native_id` support for AIX. Patch by M. Felt
+
+..
+
+.. bpo: 36781
+.. date: 2019-05-06-09-59-31
+.. nonce: uocWt6
+.. section: Core and Builtins
+
+:func:`sum` has been optimized for boolean values.
+
+..
+
+.. bpo: 34556
+.. date: 2019-05-05-18-09-40
+.. nonce: o9kfpu
+.. section: Core and Builtins
+
+Add ``--upgrade-deps`` to venv module. Patch by Cooper Ry Lees
+
+..
+
+.. bpo: 20523
+.. date: 2019-02-15-20-42-36
+.. nonce: rRLrvr
+.. section: Core and Builtins
+
+``pdb.Pdb`` supports ~/.pdbrc in Windows 7. Patch by Tim Hopper and Dan
+Lidral-Porter.
+
+..
+
+.. bpo: 35551
+.. date: 2019-01-18-16-16-27
+.. nonce: oF5pbO
+.. section: Core and Builtins
+
+Updated encodings: - Removed the "tis260" encoding, which was an alias for
+the nonexistent "tactis" codec. - Added "mac_centeuro" as an alias for the
+mac_latin2 encoding.
+
+..
+
+.. bpo: 19072
+.. date: 2018-07-23-13-09-54
+.. nonce: Gc59GS
+.. section: Core and Builtins
+
+The :class:`classmethod` decorator can now wrap other descriptors such as
+property objects. Adapted from a patch written by Graham Dumpleton.
+
+..
+
+.. bpo: 27575
+.. date: 2018-06-14-13-55-45
+.. nonce: mMYgzv
+.. section: Core and Builtins
+
+Improve speed of dictview intersection by directly using set intersection
+logic. Patch by David Su.
+
+..
+
+.. bpo: 30773
+.. date: 2018-06-07-01-01-20
+.. nonce: C31rVE
+.. section: Core and Builtins
+
+Prohibit parallel running of aclose() / asend() / athrow(). Fix ag_running
+to reflect the actual running status of the AG.
+
+..
+
+.. bpo: 36589
+.. date: 2019-11-16-22-56-51
+.. nonce: 0Io76D
+.. section: Library
+
+The :func:`curses.update_lines_cols` function now returns ``None`` instead
+of ``1`` on success.
+
+..
+
+.. bpo: 38807
+.. date: 2019-11-15-09-30-29
+.. nonce: PsmRog
+.. section: Library
+
+Update :exc:`TypeError` messages for :meth:`os.path.join` to include
+:class:`os.PathLike` objects as acceptable input types.
+
+..
+
+.. bpo: 38724
+.. date: 2019-11-14-14-13-29
+.. nonce: T5ySfR
+.. section: Library
+
+Add a repr for ``subprocess.Popen`` objects. Patch by Andrey Doroschenko.
+
+..
+
+.. bpo: 38786
+.. date: 2019-11-13-16-49-03
+.. nonce: gNOwKh
+.. section: Library
+
+pydoc now recognizes and parses HTTPS URLs. Patch by python273.
+
+..
+
+.. bpo: 38785
+.. date: 2019-11-13-16-17-43
+.. nonce: NEOEfk
+.. section: Library
+
+Prevent asyncio from crashing if parent ``__init__`` is not called from a
+constructor of object derived from ``asyncio.Future``.
+
+..
+
+.. bpo: 38723
+.. date: 2019-11-12-15-46-28
+.. nonce: gcdMFn
+.. section: Library
+
+:mod:`pdb` now uses :meth:`io.open_code` to trigger auditing events.
+
+..
+
+.. bpo: 27805
+.. date: 2019-11-11-21-43-06
+.. nonce: D3zl1_
+.. section: Library
+
+Allow opening pipes and other non-seekable files in append mode with
+:func:`open`.
+
+..
+
+.. bpo: 38438
+.. date: 2019-11-11-06-14-25
+.. nonce: vSVeHN
+.. section: Library
+
+Simplify the :mod:`argparse` usage message for ``nargs="*"``.
+
+..
+
+.. bpo: 38761
+.. date: 2019-11-10-13-40-33
+.. nonce: P1UUIZ
+.. section: Library
+
+WeakSet is now registered as a collections.abc.MutableSet.
+
+..
+
+.. bpo: 38716
+.. date: 2019-11-06-15-58-07
+.. nonce: R3uMLT
+.. section: Library
+
+logging: change RotatingHandler namer and rotator to class-level attributes.
+This stops __init__ from setting them to None in the case where a subclass
+defines them with eponymous methods.
+
+..
+
+.. bpo: 38713
+.. date: 2019-11-05-21-22-22
+.. nonce: bmhquU
+.. section: Library
+
+Add :data:`os.P_PIDFD` constant, which may be passed to :func:`os.waitid` to
+wait on a Linux process file descriptor.
+
+..
+
+.. bpo: 38692
+.. date: 2019-11-05-19-15-57
+.. nonce: 2DCDA-
+.. section: Library
+
+Add :class:`asyncio.PidfdChildWatcher`, a Linux-specific child watcher
+implementation that polls process file descriptors.
+
+..
+
+.. bpo: 38692
+.. date: 2019-11-05-07-18-24
+.. nonce: UpatA7
+.. section: Library
+
+Expose the Linux ``pidfd_open`` syscall as :func:`os.pidfd_open`.
+
+..
+
+.. bpo: 38602
+.. date: 2019-10-27-22-29-45
+.. nonce: 7jvYFA
+.. section: Library
+
+Added constants :data:`~fcntl.F_OFD_GETLK`, :data:`~fcntl.F_OFD_SETLK` and
+:data:`~fcntl.F_OFD_SETLKW` to the :mod:`fcntl` module. Patch by Dong-hee
+Na.
+
+..
+
+.. bpo: 38334
+.. date: 2019-10-27-00-08-49
+.. nonce: pfLLmc
+.. section: Library
+
+Fixed seeking backward on an encrypted :class:`zipfile.ZipExtFile`.
+
+..
+
+.. bpo: 38312
+.. date: 2019-10-26-14-42-20
+.. nonce: e_FVWh
+.. section: Library
+
+Add :func:`curses.get_escdelay`, :func:`curses.set_escdelay`,
+:func:`curses.get_tabsize`, and :func:`curses.set_tabsize` functions - by
+Anthony Sottile.
+
+..
+
+.. bpo: 38586
+.. date: 2019-10-24-17-26-39
+.. nonce: cyq5nr
+.. section: Library
+
+Now :func:`~logging.config.fileConfig` correctly sets the .name of handlers
+loaded.
+
+..
+
+.. bpo: 38565
+.. date: 2019-10-24-08-10-30
+.. nonce: SWSUst
+.. section: Library
+
+Add new cache_parameters() method for functools.lru_cache() to better
+support pickling.
+
+..
+
+.. bpo: 34679
+.. date: 2019-10-23-16-25-12
+.. nonce: Bnw8o3
+.. section: Library
+
+asynci.ProactorEventLoop.close() now only calls signal.set_wakeup_fd() in
+the main thread.
+
+..
+
+.. bpo: 31202
+.. date: 2019-10-20-12-04-48
+.. nonce: NfdIus
+.. section: Library
+
+The case the result of :func:`pathlib.WindowsPath.glob` matches now the case
+of the pattern for literal parts.
+
+..
+
+.. bpo: 36321
+.. date: 2019-10-19-21-41-20
+.. nonce: CFlxfy
+.. section: Library
+
+Remove misspelled attribute. The 3.8 changelog noted that this would be
+removed in 3.9.
+
+..
+
+.. bpo: 38521
+.. date: 2019-10-18-13-57-31
+.. nonce: U-7aaM
+.. section: Library
+
+Fixed erroneous equality comparison in statistics.NormalDist().
+
+..
+
+.. bpo: 38493
+.. date: 2019-10-16-19-56-51
+.. nonce: 86ExWB
+.. section: Library
+
+Added :data:`~os.CLD_KILLED` and :data:`~os.CLD_STOPPED` for
+:attr:`si_code`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 38478
+.. date: 2019-10-15-11-37-57
+.. nonce: A87OPO
+.. section: Library
+
+Fixed a bug in :meth:`inspect.signature.bind` that was causing it to fail
+when handling a keyword argument with same name as positional-only
+parameter. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 33604
+.. date: 2019-10-15-09-47-40
+.. nonce: J12cWT
+.. section: Library
+
+Fixed `hmac.new` and `hmac.HMAC` to raise TypeError instead of ValueError
+when the digestmod parameter, now required in 3.8, is omitted. Also
+clarified the hmac module documentation and docstrings.
+
+..
+
+.. bpo: 38378
+.. date: 2019-10-13-11-00-03
+.. nonce: yYNpSm
+.. section: Library
+
+Parameters *out* and *in* of :func:`os.sendfile` was renamed to *out_fd* and
+*in_fd*.
+
+..
+
+.. bpo: 38417
+.. date: 2019-10-12-00-13-47
+.. nonce: W7x_aS
+.. section: Library
+
+Added support for setting the umask in the child process to the subprocess
+module on POSIX systems.
+
+..
+
+.. bpo: 38449
+.. date: 2019-10-11-18-49-00
+.. nonce: 9TWMlz
+.. section: Library
+
+Revert PR 15522, which introduces a regression in
+:meth:`mimetypes.guess_type` due to improper handling of filenames as urls.
+
+..
+
+.. bpo: 38431
+.. date: 2019-10-10-16-53-00
+.. nonce: d5wzNp
+.. section: Library
+
+Fix ``__repr__`` method for :class:`dataclasses.InitVar` to support typing
+objects, patch by Samuel Colvin.
+
+..
+
+.. bpo: 38109
+.. date: 2019-10-10-00-25-28
+.. nonce: 9w-IGF
+.. section: Library
+
+Add missing :data:`stat.S_IFDOOR`, :data:`stat.S_IFPORT`,
+:data:`stat.S_IFWHT`, :func:`stat.S_ISDOOR`, :func:`stat.S_ISPORT`, and
+:func:`stat.S_ISWHT` values to the Python implementation of :mod:`stat`.
+
+..
+
+.. bpo: 38422
+.. date: 2019-10-09-18-16-51
+.. nonce: aiM5bq
+.. section: Library
+
+Clarify docstrings of pathlib suffix(es)
+
+..
+
+.. bpo: 38405
+.. date: 2019-10-08-11-18-40
+.. nonce: 0-7e7s
+.. section: Library
+
+Nested subclasses of :class:`typing.NamedTuple` are now pickleable.
+
+..
+
+.. bpo: 38332
+.. date: 2019-10-05-02-07-52
+.. nonce: hwrPN7
+.. section: Library
+
+Prevent :exc:`KeyError` thrown by :func:`_encoded_words.decode` when given
+an encoded-word with invalid content-type encoding from propagating all the
+way to :func:`email.message.get`.
+
+..
+
+.. bpo: 38371
+.. date: 2019-10-04-18-39-59
+.. nonce: S6Klvm
+.. section: Library
+
+Deprecated the ``split()`` method in :class:`_tkinter.TkappType` in favour
+of the ``splitlist()`` method which has more consistent and predicable
+behavior.
+
+..
+
+.. bpo: 38341
+.. date: 2019-10-01-21-06-18
+.. nonce: uqwgU_
+.. section: Library
+
+Add :exc:`smtplib.SMTPNotSupportedError` to the :mod:`smtplib` exported
+names.
+
+..
+
+.. bpo: 38319
+.. date: 2019-09-30-22-06-33
+.. nonce: 5QjiDa
+.. section: Library
+
+sendfile() used in socket and shutil modules was raising OverflowError for
+files >= 2GiB on 32-bit architectures. (patch by Giampaolo Rodola)
+
+..
+
+.. bpo: 38242
+.. date: 2019-09-30-00-15-27
+.. nonce: uPIyAc
+.. section: Library
+
+Revert the new asyncio Streams API
+
+..
+
+.. bpo: 13153
+.. date: 2019-09-29-22-47-37
+.. nonce: 0mO9qR
+.. section: Library
+
+OS native encoding is now used for converting between Python strings and Tcl
+objects. This allows to display, copy and paste to clipboard emoji and
+other non-BMP characters. Converting strings from Tcl to Python and back
+now never fails (except MemoryError).
+
+..
+
+.. bpo: 38019
+.. date: 2019-09-29-13-50-24
+.. nonce: 6MoOE3
+.. section: Library
+
+Correctly handle pause/resume reading of closed asyncio unix pipe.
+
+..
+
+.. bpo: 38163
+.. date: 2019-09-28-20-16-40
+.. nonce: x51-vK
+.. section: Library
+
+Child mocks will now detect their type as either synchronous or
+asynchronous, asynchronous child mocks will be AsyncMocks and synchronous
+child mocks will be either MagicMock or Mock (depending on their parent
+type).
+
+..
+
+.. bpo: 38161
+.. date: 2019-09-27-16-31-28
+.. nonce: zehai1
+.. section: Library
+
+Removes _AwaitEvent from AsyncMock.
+
+..
+
+.. bpo: 38216
+.. date: 2019-09-27-15-24-45
+.. nonce: -7yvZR
+.. section: Library
+
+Allow the rare code that wants to send invalid http requests from the
+`http.client` library a way to do so. The fixes for bpo-30458 led to
+breakage for some projects that were relying on this ability to test their
+own behavior in the face of bad requests.
+
+..
+
+.. bpo: 28286
+.. date: 2019-09-26-12-16-30
+.. nonce: LdSsrN
+.. section: Library
+
+Deprecate opening :class:`~gzip.GzipFile` for writing implicitly. Always
+specify the *mode* argument for writing.
+
+..
+
+.. bpo: 38108
+.. date: 2019-09-25-21-37-02
+.. nonce: Jr9HU6
+.. section: Library
+
+Any synchronous magic methods on an AsyncMock now return a MagicMock. Any
+asynchronous magic methods on a MagicMock now return an AsyncMock.
+
+..
+
+.. bpo: 38265
+.. date: 2019-09-25-05-16-19
+.. nonce: X6-gsT
+.. section: Library
+
+Update the *length* parameter of :func:`os.pread` to accept
+:c:type:`Py_ssize_t` instead of :c:expr:`int`.
+
+..
+
+.. bpo: 38112
+.. date: 2019-09-24-10-55-01
+.. nonce: 2EinX9
+.. section: Library
+
+:mod:`compileall` has a higher default recursion limit and new command-line
+arguments for path manipulation, symlinks handling, and multiple
+optimization levels.
+
+..
+
+.. bpo: 38248
+.. date: 2019-09-22-13-05-36
+.. nonce: Yo3N_1
+.. section: Library
+
+asyncio: Fix inconsistent immediate Task cancellation
+
+..
+
+.. bpo: 38237
+.. date: 2019-09-20-14-27-17
+.. nonce: xRUZbx
+.. section: Library
+
+The arguments for the builtin pow function are more descriptive. They can
+now also be passed in as keywords.
+
+..
+
+.. bpo: 34002
+.. date: 2019-09-19-19-58-33
+.. nonce: KBnaVX
+.. section: Library
+
+Improve efficiency in parts of email package by changing while-pop to a for
+loop, using isdisjoint instead of set intersections.
+
+..
+
+.. bpo: 38191
+.. date: 2019-09-17-12-28-27
+.. nonce: 1TU0HV
+.. section: Library
+
+Constructors of :class:`~typing.NamedTuple` and :class:`~typing.TypedDict`
+types now accept arbitrary keyword argument names, including "cls", "self",
+"typename", "_typename", "fields" and "_fields".
+
+..
+
+.. bpo: 38155
+.. date: 2019-09-16-21-47-48
+.. nonce: d92lRc
+.. section: Library
+
+Add ``__all__`` to :mod:`datetime`. Patch by Tahia Khan.
+
+..
+
+.. bpo: 38185
+.. date: 2019-09-16-19-12-57
+.. nonce: zYWppY
+.. section: Library
+
+Fixed case-insensitive string comparison in :class:`sqlite3.Row` indexing.
+
+..
+
+.. bpo: 38136
+.. date: 2019-09-16-09-54-42
+.. nonce: MdI-Zb
+.. section: Library
+
+Changes AsyncMock call count and await count to be two different counters.
+Now await count only counts when a coroutine has been awaited, not when it
+has been called, and vice-versa. Update the documentation around this.
+
+..
+
+.. bpo: 37828
+.. date: 2019-09-15-21-31-18
+.. nonce: gLLDX7
+.. section: Library
+
+Fix default mock name in :meth:`unittest.mock.Mock.assert_called`
+exceptions. Patch by Abraham Toriz Cruz.
+
+..
+
+.. bpo: 38175
+.. date: 2019-09-15-10-30-33
+.. nonce: 61XlUv
+.. section: Library
+
+Fix a memory leak in comparison of :class:`sqlite3.Row` objects.
+
+..
+
+.. bpo: 33936
+.. date: 2019-09-14-10-34-00
+.. nonce: 8wCI_n
+.. section: Library
+
+_hashlib no longer calls obsolete OpenSSL initialization function with
+OpenSSL 1.1.0+.
+
+..
+
+.. bpo: 34706
+.. date: 2019-09-13-14-54-33
+.. nonce: HWVpOY
+.. section: Library
+
+Preserve subclassing in inspect.Signature.from_callable.
+
+..
+
+.. bpo: 38153
+.. date: 2019-09-13-12-18-51
+.. nonce: nHAbuJ
+.. section: Library
+
+Names of hashing algorithms from OpenSSL are now normalized to follow
+Python's naming conventions. For example OpenSSL uses sha3-512 instead of
+sha3_512 or blake2b512 instead of blake2b.
+
+..
+
+.. bpo: 38115
+.. date: 2019-09-13-09-24-58
+.. nonce: BOO-Y1
+.. section: Library
+
+Fix a bug in dis.findlinestarts() where it would return invalid bytecode
+offsets. Document that a code object's co_lnotab can contain invalid
+bytecode offsets.
+
+..
+
+.. bpo: 38148
+.. date: 2019-09-13-08-55-43
+.. nonce: Lnww6D
+.. section: Library
+
+Add slots to :mod:`asyncio` transport classes, which can reduce memory
+usage.
+
+..
+
+.. bpo: 38142
+.. date: 2019-09-12-18-41-35
+.. nonce: 1I0Ch0
+.. section: Library
+
+The _hashlib OpenSSL wrapper extension module is now PEP-384 compliant.
+
+..
+
+.. bpo: 9216
+.. date: 2019-09-12-14-54-45
+.. nonce: W7QMpC
+.. section: Library
+
+hashlib constructors now support usedforsecurity flag to signal that a
+hashing algorithm is not used in a security context.
+
+..
+
+.. bpo: 36991
+.. date: 2019-09-12-14-52-38
+.. nonce: 1OcSm8
+.. section: Library
+
+Fixes a potential incorrect AttributeError exception escaping
+ZipFile.extract() in some unsupported input error situations.
+
+..
+
+.. bpo: 38134
+.. date: 2019-09-12-13-18-55
+.. nonce: gXJTbP
+.. section: Library
+
+Remove obsolete copy of PBKDF2_HMAC_fast. All supported OpenSSL versions
+contain a fast implementation.
+
+..
+
+.. bpo: 38132
+.. date: 2019-09-12-12-47-35
+.. nonce: KSFx1F
+.. section: Library
+
+The OpenSSL hashlib wrapper uses a simpler implementation. Several Macros
+and pointless caches are gone. The hash name now comes from OpenSSL's EVP.
+The algorithm name stays the same, except it is now always lower case.
+
+..
+
+.. bpo: 38008
+.. date: 2019-09-12-10-47-34
+.. nonce: sH74Iy
+.. section: Library
+
+Fix parent class check in protocols to correctly identify the module that
+provides a builtin protocol, instead of assuming they all come from the
+:mod:`collections.abc` module
+
+..
+
+.. bpo: 34037
+.. date: 2019-09-11-21-38-41
+.. nonce: LIAS_3
+.. section: Library
+
+For :mod:`asyncio`, add a new coroutine
+:meth:`loop.shutdown_default_executor`. The new coroutine provides an API to
+schedule an executor shutdown that waits on the threadpool to finish
+closing. Also, :func:`asyncio.run` has been updated to utilize the new
+coroutine. Patch by Kyle Stanley.
+
+..
+
+.. bpo: 37405
+.. date: 2019-09-11-20-27-41
+.. nonce: MG5xiY
+.. section: Library
+
+Fixed regression bug for socket.getsockname() for non-CAN_ISOTP AF_CAN
+address family sockets by returning a 1-tuple instead of string.
+
+..
+
+.. bpo: 38121
+.. date: 2019-09-11-16-54-57
+.. nonce: SrSDzB
+.. section: Library
+
+Update parameter names on functions in importlib.metadata matching the
+changes in the 0.22 release of importlib_metadata.
+
+..
+
+.. bpo: 38110
+.. date: 2019-09-11-14-49-20
+.. nonce: A19Y-q
+.. section: Library
+
+The os.closewalk() implementation now uses the libc fdwalk() API on
+platforms where it is available.
+
+..
+
+.. bpo: 38093
+.. date: 2019-09-11-14-45-30
+.. nonce: yQ6k7y
+.. section: Library
+
+Fixes AsyncMock so it doesn't crash when used with AsyncContextManagers or
+AsyncIterators.
+
+..
+
+.. bpo: 37488
+.. date: 2019-09-11-11-44-16
+.. nonce: S8CJUL
+.. section: Library
+
+Add warning to :meth:`datetime.utctimetuple`, :meth:`datetime.utcnow` and
+:meth:`datetime.utcfromtimestamp` .
+
+..
+
+.. bpo: 35640
+.. date: 2019-09-10-15-52-55
+.. nonce: X0lp5f
+.. section: Library
+
+Allow passing a :term:`path-like object` as ``directory`` argument to the
+:class:`http.server.SimpleHTTPRequestHandler` class. Patch by Géry Ogam.
+
+..
+
+.. bpo: 38086
+.. date: 2019-09-10-11-42-59
+.. nonce: w5TlG-
+.. section: Library
+
+Update importlib.metadata with changes from `importlib_metadata 0.21
+<https://gitlab.com/python-devs/importlib_metadata/blob/0.21/importlib_metadata/docs/changelog.rst>`_.
+
+..
+
+.. bpo: 37251
+.. date: 2019-09-10-10-59-50
+.. nonce: 8zn2o3
+.. section: Library
+
+Remove `__code__` check in AsyncMock that incorrectly evaluated function
+specs as async objects but failed to evaluate classes with `__await__` but
+no `__code__` attribute defined as async objects.
+
+..
+
+.. bpo: 38037
+.. date: 2019-09-09-18-39-23
+.. nonce: B0UgFU
+.. section: Library
+
+Fix reference counters in the :mod:`signal` module.
+
+..
+
+.. bpo: 38066
+.. date: 2019-09-09-14-39-47
+.. nonce: l9mWv-
+.. section: Library
+
+Hide internal asyncio.Stream methods: feed_eof(), feed_data(),
+set_exception() and set_transport().
+
+..
+
+.. bpo: 38059
+.. date: 2019-09-08-11-36-50
+.. nonce: 8SA6co
+.. section: Library
+
+inspect.py now uses sys.exit() instead of exit()
+
+..
+
+.. bpo: 38049
+.. date: 2019-09-07-12-32-50
+.. nonce: xKP4tf
+.. section: Library
+
+Added command-line interface for the :mod:`ast` module.
+
+..
+
+.. bpo: 37953
+.. date: 2019-09-06-17-40-34
+.. nonce: db5FQq
+.. section: Library
+
+In :mod:`typing`, improved the ``__hash__`` and ``__eq__`` methods for
+:class:`ForwardReferences`.
+
+..
+
+.. bpo: 38026
+.. date: 2019-09-04-20-34-14
+.. nonce: 0LLRX-
+.. section: Library
+
+Fixed :func:`inspect.getattr_static` used ``isinstance`` while it should
+avoid dynamic lookup.
+
+..
+
+.. bpo: 35923
+.. date: 2019-09-03-01-41-35
+.. nonce: lYpKbY
+.. section: Library
+
+Update :class:`importlib.machinery.BuiltinImporter` to use
+``loader._ORIGIN`` instead of a hardcoded value. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 38010
+.. date: 2019-09-02-14-30-39
+.. nonce: JOnz9Z
+.. section: Library
+
+In ``importlib.metadata`` sync with ``importlib_metadata`` 0.20, clarifying
+behavior of ``files()`` and fixing issue where only one requirement was
+returned for ``requires()`` on ``dist-info`` packages.
+
+..
+
+.. bpo: 38006
+.. date: 2019-09-02-13-37-27
+.. nonce: Y7vA0Q
+.. section: Library
+
+weakref.WeakValueDictionary defines a local remove() function used as
+callback for weak references. This function was created with a closure.
+Modify the implementation to avoid the closure.
+
+..
+
+.. bpo: 37995
+.. date: 2019-08-31-13-36-09
+.. nonce: rS8HzT
+.. section: Library
+
+Added the *indent* option to :func:`ast.dump` which allows it to produce a
+multiline indented output.
+
+..
+
+.. bpo: 34410
+.. date: 2019-08-31-01-52-59
+.. nonce: 7KbWZQ
+.. section: Library
+
+Fixed a crash in the :func:`tee` iterator when re-enter it. RuntimeError is
+now raised in this case.
+
+..
+
+.. bpo: 37140
+.. date: 2019-08-30-11-21-10
+.. nonce: cFAX-a
+.. section: Library
+
+Fix a ctypes regression of Python 3.8. When a ctypes.Structure is passed by
+copy to a function, ctypes internals created a temporary object which had
+the side effect of calling the structure finalizer (__del__) twice. The
+Python semantics requires a finalizer to be called exactly once. Fix ctypes
+internals to no longer call the finalizer twice.
+
+..
+
+.. bpo: 37587
+.. date: 2019-08-29-18-48-48
+.. nonce: N7TGTC
+.. section: Library
+
+``_json.scanstring`` is now up to 3x faster when there are many backslash
+escaped characters in the JSON string.
+
+..
+
+.. bpo: 37834
+.. date: 2019-08-29-16-41-36
+.. nonce: FThnsh
+.. section: Library
+
+Prevent shutil.rmtree exception when built on non-Windows system without fd
+system call support, like older versions of macOS.
+
+..
+
+.. bpo: 10978
+.. date: 2019-08-29-01-19-13
+.. nonce: J6FQYY
+.. section: Library
+
+Semaphores and BoundedSemaphores can now release more than one waiting
+thread at a time.
+
+..
+
+.. bpo: 37972
+.. date: 2019-08-28-21-40-12
+.. nonce: kP-n4L
+.. section: Library
+
+Subscripts to the `unittest.mock.call` objects now receive the same chaining
+mechanism as any other custom attributes, so that the following usage no
+longer raises a `TypeError`:
+
+call().foo().__getitem__('bar')
+
+Patch by blhsing
+
+..
+
+.. bpo: 37965
+.. date: 2019-08-28-14-04-18
+.. nonce: 7xGE-C
+.. section: Library
+
+Fix C compiler warning caused by distutils.ccompiler.CCompiler.has_function.
+
+..
+
+.. bpo: 37964
+.. date: 2019-08-27-21-19-28
+.. nonce: SxdnsF
+.. section: Library
+
+Add ``F_GETPATH`` command to :mod:`fcntl`.
+
+..
+
+.. bpo: 37960
+.. date: 2019-08-27-10-52-13
+.. nonce: CTY7Lw
+.. section: Library
+
+``repr()`` of buffered and text streams now silences only expected
+exceptions when get the value of "name" and "mode" attributes.
+
+..
+
+.. bpo: 37961
+.. date: 2019-08-27-10-30-44
+.. nonce: 4nm0zZ
+.. section: Library
+
+Add a ``total_nframe`` field to the traces collected by the tracemalloc
+module. This field indicates the original number of frames before it was
+truncated.
+
+..
+
+.. bpo: 37951
+.. date: 2019-08-27-10-03-48
+.. nonce: MfRQgL
+.. section: Library
+
+Most features of the subprocess module now work again in subinterpreters.
+Only *preexec_fn* is restricted in subinterpreters.
+
+..
+
+.. bpo: 36205
+.. date: 2019-08-27-03-53-26
+.. nonce: AfkGRl
+.. section: Library
+
+Fix the rusage implementation of time.process_time() to correctly report the
+sum of the system and user CPU time.
+
+..
+
+.. bpo: 37950
+.. date: 2019-08-26-10-45-51
+.. nonce: -K1IKT
+.. section: Library
+
+Fix :func:`ast.dump` when call with incompletely initialized node.
+
+..
+
+.. bpo: 34679
+.. date: 2019-08-25-18-07-48
+.. nonce: HECzL7
+.. section: Library
+
+Restores instantiation of Windows IOCP event loops from the non-main thread.
+
+..
+
+.. bpo: 36917
+.. date: 2019-08-25-14-56-42
+.. nonce: GBxdw2
+.. section: Library
+
+Add default implementation of the :meth:`ast.NodeVisitor.visit_Constant`
+method which emits a deprecation warning and calls corresponding methody
+``visit_Num()``, ``visit_Str()``, etc.
+
+..
+
+.. bpo: 37798
+.. date: 2019-08-24-16-54-49
+.. nonce: 7mRQCk
+.. section: Library
+
+Update test_statistics.py to verify that the statistics module works well
+for both C and Python implementations. Patch by Dong-hee Na
+
+..
+
+.. bpo: 26589
+.. date: 2019-08-23-00-55-19
+.. nonce: M1xyxG
+.. section: Library
+
+Added a new status code to the http module: 451
+UNAVAILABLE_FOR_LEGAL_REASONS
+
+..
+
+.. bpo: 37915
+.. date: 2019-08-22-16-13-27
+.. nonce: xyoZI5
+.. section: Library
+
+Fix a segmentation fault that appeared when comparing instances of
+``datetime.timezone`` and ``datetime.tzinfo`` objects. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 32554
+.. date: 2019-08-22-01-49-05
+.. nonce: 4xiXyM
+.. section: Library
+
+Deprecate having random.seed() call hash on arbitrary types.
+
+..
+
+.. bpo: 9938
+.. date: 2019-08-21-16-38-56
+.. nonce: t3G7N9
+.. section: Library
+
+Add optional keyword argument ``exit_on_error`` for :class:`ArgumentParser`.
+
+..
+
+.. bpo: 37851
+.. date: 2019-08-21-13-43-04
+.. nonce: mIIfD_
+.. section: Library
+
+The :mod:`faulthandler` module no longer allocates its alternative stack at
+Python startup. Now the stack is only allocated at the first faulthandler
+usage.
+
+..
+
+.. bpo: 32793
+.. date: 2019-08-20-05-17-32
+.. nonce: cgpXl6
+.. section: Library
+
+Fix a duplicated debug message when :meth:`smtplib.SMTP.connect` is called.
+
+..
+
+.. bpo: 37885
+.. date: 2019-08-19-10-31-41
+.. nonce: 4Nc9sp
+.. section: Library
+
+venv: Don't generate unset variable warning on deactivate.
+
+..
+
+.. bpo: 37868
+.. date: 2019-08-17-22-33-54
+.. nonce: hp64fi
+.. section: Library
+
+Fix dataclasses.is_dataclass when given an instance that never raises
+AttributeError in __getattr__. That is, an object that returns something
+for __dataclass_fields__ even if it's not a dataclass.
+
+..
+
+.. bpo: 37811
+.. date: 2019-08-14-21-41-07
+.. nonce: d1xYj7
+.. section: Library
+
+Fix ``socket`` module's ``socket.connect(address)`` function being unable to
+establish connection in case of interrupted system call. The problem was
+observed on all OSes which ``poll(2)`` system call can take only
+non-negative integers and -1 as a timeout value.
+
+..
+
+.. bpo: 37863
+.. date: 2019-08-14-20-46-39
+.. nonce: CkXqgX
+.. section: Library
+
+Optimizations for Fraction.__hash__ suggested by Tim Peters.
+
+..
+
+.. bpo: 21131
+.. date: 2019-08-14-15-34-23
+.. nonce: 0MMQRi
+.. section: Library
+
+Fix ``faulthandler.register(chain=True)`` stack. faulthandler now allocates
+a dedicated stack of ``SIGSTKSZ*2`` bytes, instead of just ``SIGSTKSZ``
+bytes. Calling the previous signal handler in faulthandler signal handler
+uses more than ``SIGSTKSZ`` bytes of stack memory on some platforms.
+
+..
+
+.. bpo: 37798
+.. date: 2019-08-14-13-51-24
+.. nonce: AmXrik
+.. section: Library
+
+Add C fastpath for statistics.NormalDist.inv_cdf() Patch by Dong-hee Na
+
+..
+
+.. bpo: 37804
+.. date: 2019-08-12-23-07-47
+.. nonce: Ene6L-
+.. section: Library
+
+Remove the deprecated method `threading.Thread.isAlive()`. Patch by Dong-hee
+Na.
+
+..
+
+.. bpo: 37819
+.. date: 2019-08-11-10-34-19
+.. nonce: LVJls-
+.. section: Library
+
+Add Fraction.as_integer_ratio() to match the corresponding methods in bool,
+int, float, and decimal.
+
+..
+
+.. bpo: 14465
+.. date: 2019-08-10-18-50-04
+.. nonce: qZGC4g
+.. section: Library
+
+Add an xml.etree.ElementTree.indent() function for pretty-printing XML
+trees. Contributed by Stefan Behnel.
+
+..
+
+.. bpo: 37810
+.. date: 2019-08-10-12-33-27
+.. nonce: d4zbvB
+.. section: Library
+
+Fix :mod:`difflib` ``?`` hint in diff output when dealing with tabs. Patch
+by Anthony Sottile.
+
+..
+
+.. bpo: 37772
+.. date: 2019-08-07-23-48-09
+.. nonce: hLCvdn
+.. section: Library
+
+In ``zipfile.Path``, when adding implicit dirs, ensure that ancestral
+directories are added and that duplicates are excluded.
+
+..
+
+.. bpo: 18578
+.. date: 2019-08-07-19-34-07
+.. nonce: xfvdb_
+.. section: Library
+
+Renamed and documented `test.bytecode_helper` as
+`test.support.bytecode_helper`. Patch by Joannah Nanjekye.
+
+..
+
+.. bpo: 37785
+.. date: 2019-08-07-14-49-22
+.. nonce: y7OlT8
+.. section: Library
+
+Fix xgettext warnings in :mod:`argparse`.
+
+..
+
+.. bpo: 34488
+.. date: 2019-08-06-21-30-58
+.. nonce: OqxVo8
+.. section: Library
+
+:meth:`writelines` method of :class:`io.BytesIO` is now slightly faster when
+many small lines are passed. Patch by Sergey Fedoseev.
+
+..
+
+.. bpo: 37449
+.. date: 2019-08-04-17-22-33
+.. nonce: ycbL2z
+.. section: Library
+
+`ensurepip` now uses `importlib.resources.read_binary()` to read data
+instead of `pkgutil.get_data()`. Patch by Joannah Nanjekye.
+
+..
+
+.. bpo: 28292
+.. date: 2019-08-04-11-47-58
+.. nonce: vkihH5
+.. section: Library
+
+Mark calendar.py helper functions as being private. The follows PEP 8
+guidance to maintain the style conventions in the module and it addresses a
+known case of user confusion.
+
+..
+
+.. bpo: 18049
+.. date: 2019-08-02-16-44-42
+.. nonce: OA4qBL
+.. section: Library
+
+Add definition of THREAD_STACK_SIZE for AIX in Python/thread_pthread.h The
+default thread stacksize caused crashes with the default recursion limit
+Patch by M Felt
+
+..
+
+.. bpo: 37742
+.. date: 2019-08-02-14-01-25
+.. nonce: f4Xn9S
+.. section: Library
+
+The logging.getLogger() API now returns the root logger when passed the name
+'root', whereas previously it returned a non-root logger named 'root'. This
+could affect cases where user code explicitly wants a non-root logger named
+'root', or instantiates a logger using logging.getLogger(__name__) in some
+top-level module called 'root.py'.
+
+..
+
+.. bpo: 37738
+.. date: 2019-08-01-17-11-16
+.. nonce: A3WWcT
+.. section: Library
+
+Fix the implementation of curses ``addch(str, color_pair)``: pass the color
+pair to ``setcchar()``, instead of always passing 0 as the color pair.
+
+..
+
+.. bpo: 37723
+.. date: 2019-07-31-16-49-01
+.. nonce: zq6tw8
+.. section: Library
+
+Fix performance regression on regular expression parsing with huge character
+sets. Patch by Yann Vaginay.
+
+..
+
+.. bpo: 35943
+.. date: 2019-07-31-15-52-51
+.. nonce: -KswoB
+.. section: Library
+
+The function :c:func:`PyImport_GetModule` now ensures any module it returns
+is fully initialized. Patch by Joannah Nanjekye.
+
+..
+
+.. bpo: 32178
+.. date: 2019-07-30-22-41-05
+.. nonce: X-IFLe
+.. section: Library
+
+Fix IndexError in :mod:`email` package when trying to parse invalid address
+fields starting with ``:``.
+
+..
+
+.. bpo: 37268
+.. date: 2019-07-30-01-27-29
+.. nonce: QDmA44
+.. section: Library
+
+The :mod:`parser` module is deprecated and will be removed in future
+versions of Python.
+
+..
+
+.. bpo: 11953
+.. date: 2019-07-29-21-39-45
+.. nonce: 4Hpwf9
+.. section: Library
+
+Completing WSA* error codes in :mod:`socket`.
+
+..
+
+.. bpo: 37685
+.. date: 2019-07-28-22-25-25
+.. nonce: _3bN9f
+.. section: Library
+
+Fixed comparisons of :class:`datetime.timedelta` and
+:class:`datetime.timezone`.
+
+..
+
+.. bpo: 37697
+.. date: 2019-07-28-17-44-21
+.. nonce: 7UV5d0
+.. section: Library
+
+Synchronize ``importlib.metadata`` with `importlib_metadata 0.19
+<https://gitlab.com/python-devs/importlib_metadata/-/milestones/20>`_,
+improving handling of EGG-INFO files and fixing a crash when entry point
+names contained colons.
+
+..
+
+.. bpo: 37695
+.. date: 2019-07-27-20-21-03
+.. nonce: QANdvg
+.. section: Library
+
+Correct :func:`curses.unget_wch` error message. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 37689
+.. date: 2019-07-27-18-00-43
+.. nonce: glEmZi
+.. section: Library
+
+Add :meth:`is_relative_to` in :class:`PurePath` to determine whether or not
+one path is relative to another.
+
+..
+
+.. bpo: 29553
+.. date: 2019-07-27-10-14-45
+.. nonce: TVeIDe
+.. section: Library
+
+Fixed :meth:`argparse.ArgumentParser.format_usage` for mutually exclusive
+groups. Patch by Andrew Nester.
+
+..
+
+.. bpo: 37691
+.. date: 2019-07-26-22-30-01
+.. nonce: 1Li3rx
+.. section: Library
+
+Let math.dist() accept coordinates as sequences (or iterables) rather than
+just tuples.
+
+..
+
+.. bpo: 37685
+.. date: 2019-07-26-00-12-29
+.. nonce: TqckMZ
+.. section: Library
+
+Fixed ``__eq__``, ``__lt__`` etc implementations in some classes. They now
+return :data:`NotImplemented` for unsupported type of the other operand.
+This allows the other operand to play role (for example the equality
+comparison with :data:`~unittest.mock.ANY` will return ``True``).
+
+..
+
+.. bpo: 37354
+.. date: 2019-07-25-10-28-40
+.. nonce: RT3_3H
+.. section: Library
+
+Make Activate.ps1 Powershell script static to allow for signing it.
+
+..
+
+.. bpo: 37664
+.. date: 2019-07-24-18-27-44
+.. nonce: o-GYZC
+.. section: Library
+
+Update wheels bundled with ensurepip (pip 19.2.3 and setuptools 41.2.0)
+
+..
+
+.. bpo: 37663
+.. date: 2019-07-24-14-38-53
+.. nonce: h4-9-1
+.. section: Library
+
+Bring consistency to venv shell activation scripts by always using
+__VENV_PROMPT__.
+
+..
+
+.. bpo: 37642
+.. date: 2019-07-21-20-59-31
+.. nonce: L61Bvy
+.. section: Library
+
+Allowed the pure Python implementation of :class:`datetime.timezone` to
+represent sub-minute offsets close to minimum and maximum boundaries,
+specifically in the ranges (23:59, 24:00) and (-23:59, 24:00). Patch by
+Ngalim Siregar
+
+..
+
+.. bpo: 36161
+.. date: 2019-07-20-01-17-43
+.. nonce: Fzf-f9
+.. section: Library
+
+In :mod:`posix`, use ``ttyname_r`` instead of ``ttyname`` for thread safety.
+
+..
+
+.. bpo: 36324
+.. date: 2019-07-19-22-44-41
+.. nonce: 1VjywS
+.. section: Library
+
+Make internal attributes for statistics.NormalDist() private.
+
+..
+
+.. bpo: 37555
+.. date: 2019-07-19-20-13-48
+.. nonce: S5am28
+.. section: Library
+
+Fix `NonCallableMock._call_matcher` returning tuple instead of `_Call`
+object when `self._spec_signature` exists. Patch by Elizabeth Uselton
+
+..
+
+.. bpo: 29446
+.. date: 2019-07-19-16-06-48
+.. nonce: iXGuoi
+.. section: Library
+
+Make `from tkinter import *` import only the expected objects.
+
+..
+
+.. bpo: 16970
+.. date: 2019-07-19-01-46-56
+.. nonce: GEASf5
+.. section: Library
+
+Adding a value error when an invalid value in passed to nargs Patch by
+Robert Leenders
+
+..
+
+.. bpo: 34443
+.. date: 2019-07-17-11-10-08
+.. nonce: OFnGqz
+.. section: Library
+
+Exceptions from :mod:`enum` now use the ``__qualname`` of the enum class in
+the exception message instead of the ``__name__``.
+
+..
+
+.. bpo: 37491
+.. date: 2019-07-17-06-54-43
+.. nonce: op0aMs
+.. section: Library
+
+Fix ``IndexError`` when parsing email headers with unexpectedly ending
+bare-quoted string value. Patch by Abhilash Raj.
+
+..
+
+.. bpo: 37587
+.. date: 2019-07-13-16-02-48
+.. nonce: fd-1aF
+.. section: Library
+
+Make json.loads faster for long strings. (Patch by Marco Paolini)
+
+..
+
+.. bpo: 18378
+.. date: 2019-07-13-13-40-12
+.. nonce: NHcojp
+.. section: Library
+
+Recognize "UTF-8" as a valid value for LC_CTYPE in locale._parse_localename.
+
+..
+
+.. bpo: 37579
+.. date: 2019-07-13-10-59-43
+.. nonce: B1Tq9i
+.. section: Library
+
+Return :exc:`NotImplemented` in Python implementation of ``__eq__`` for
+:class:`~datetime.timedelta` and :class:`~datetime.time` when the other
+object being compared is not of the same type to match C implementation.
+Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 21478
+.. date: 2019-07-10-23-07-11
+.. nonce: cCw9rF
+.. section: Library
+
+Record calls to parent when autospecced object is attached to a mock using
+:func:`unittest.mock.attach_mock`. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 37531
+.. date: 2019-07-09-19-38-26
+.. nonce: GX7s8S
+.. section: Library
+
+"python3 -m test -jN --timeout=TIMEOUT" now kills a worker process if it
+runs longer than *TIMEOUT* seconds.
+
+..
+
+.. bpo: 37482
+.. date: 2019-07-09-11-20-21
+.. nonce: auzvev
+.. section: Library
+
+Fix serialization of display name in originator or destination address
+fields with both encoded words and special chars.
+
+..
+
+.. bpo: 36993
+.. date: 2019-07-09-05-44-39
+.. nonce: 4javqu
+.. section: Library
+
+Improve error reporting for corrupt zip files with bad zip64 extra data.
+Patch by Daniel Hillier.
+
+..
+
+.. bpo: 37502
+.. date: 2019-07-08-03-15-04
+.. nonce: qZGC4g
+.. section: Library
+
+pickle.loads() no longer raises TypeError when the buffers argument is set
+to None
+
+..
+
+.. bpo: 37520
+.. date: 2019-07-07-21-09-08
+.. nonce: Gg0KD6
+.. section: Library
+
+Correct behavior for zipfile.Path.parent when the path object identifies a
+subdirectory.
+
+..
+
+.. bpo: 18374
+.. date: 2019-07-05-21-46-45
+.. nonce: qgE0H3
+.. section: Library
+
+Fix the ``.col_offset`` attribute of nested :class:`ast.BinOp` instances
+which had a too large value in some situations.
+
+..
+
+.. bpo: 37424
+.. date: 2019-07-04-13-00-20
+.. nonce: 0i1MR-
+.. section: Library
+
+Fixes a possible hang when using a timeout on `subprocess.run()` while
+capturing output. If the child process spawned its own children or
+otherwise connected its stdout or stderr handles with another process, we
+could hang after the timeout was reached and our child was killed when
+attempting to read final output from the pipes.
+
+..
+
+.. bpo: 37421
+.. date: 2019-07-03-12-47-52
+.. nonce: gR5hC8
+.. section: Library
+
+Fix :func:`multiprocessing.util.get_temp_dir` finalizer: clear also the
+'tempdir' configuration of the current process, so next call to
+``get_temp_dir()`` will create a new temporary directory, rather than
+reusing the removed temporary directory.
+
+..
+
+.. bpo: 37481
+.. date: 2019-07-02-13-08-30
+.. nonce: hd5k09
+.. section: Library
+
+The distutils ``bdist_wininst`` command is deprecated in Python 3.8, use
+``bdist_wheel`` (wheel packages) instead.
+
+..
+
+.. bpo: 37479
+.. date: 2019-07-02-12-43-57
+.. nonce: O53a5S
+.. section: Library
+
+When `Enum.__str__` is overridden in a derived class, the override will be
+used by `Enum.__format__` regardless of whether mixin classes are present.
+
+..
+
+.. bpo: 37440
+.. date: 2019-06-28-16-40-17
+.. nonce: t3wX-N
+.. section: Library
+
+http.client now enables TLS 1.3 post-handshake authentication for default
+context or if a cert_file is passed to HTTPSConnection.
+
+..
+
+.. bpo: 37437
+.. date: 2019-06-27-20-33-50
+.. nonce: du39_A
+.. section: Library
+
+Update vendorized expat version to 2.2.7.
+
+..
+
+.. bpo: 37428
+.. date: 2019-06-27-13-27-02
+.. nonce: _wcwUd
+.. section: Library
+
+SSLContext.post_handshake_auth = True no longer sets
+SSL_VERIFY_POST_HANDSHAKE verify flag for client connections. Although the
+option is documented as ignored for clients, OpenSSL implicitly enables cert
+chain validation when the flag is set.
+
+..
+
+.. bpo: 37420
+.. date: 2019-06-26-22-25-05
+.. nonce: CxFJ09
+.. section: Library
+
+:func:`os.sched_setaffinity` now correctly handles errors that arise during
+iteration over its ``mask`` argument. Patch by Brandt Bucher.
+
+..
+
+.. bpo: 37412
+.. date: 2019-06-26-16-28-59
+.. nonce: lx0VjC
+.. section: Library
+
+The :func:`os.getcwdb` function now uses the UTF-8 encoding on Windows,
+rather than the ANSI code page: see :pep:`529` for the rationale. The
+function is no longer deprecated on Windows.
+
+..
+
+.. bpo: 37406
+.. date: 2019-06-26-03-00-06
+.. nonce: uovkpq
+.. section: Library
+
+The sqlite3 module now raises TypeError, rather than ValueError, if
+operation argument type is not str: execute(), executemany() and calling a
+connection.
+
+..
+
+.. bpo: 29412
+.. date: 2019-06-25-19-27-25
+.. nonce: n4Zqdh
+.. section: Library
+
+Fix IndexError in parsing a header value ending unexpectedly. Patch by
+Abhilash Raj.
+
+..
+
+.. bpo: 36546
+.. date: 2019-06-25-05-07-48
+.. nonce: RUcxaK
+.. section: Library
+
+The *dist* argument for statistics.quantiles() is now positional only. The
+current name doesn't reflect that the argument can be either a dataset or a
+distribution. Marking the parameter as positional avoids confusion and
+makes it possible to change the name later.
+
+..
+
+.. bpo: 37394
+.. date: 2019-06-25-02-10-00
+.. nonce: srZ1zx
+.. section: Library
+
+Fix a bug that was causing the :mod:`queue` module to fail if the
+accelerator module was not available. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 37376
+.. date: 2019-06-24-11-26-34
+.. nonce: SwSUQ4
+.. section: Library
+
+:mod:`pprint` now has support for :class:`types.SimpleNamespace`. Patch by
+Carl Bordum Hansen.
+
+..
+
+.. bpo: 26967
+.. date: 2019-06-23-12-46-10
+.. nonce: xEuem1
+.. section: Library
+
+An :class:`~argparse.ArgumentParser` with ``allow_abbrev=False`` no longer
+disables grouping of short flags, such as ``-vv``, but only disables
+abbreviation of long flags as documented. Patch by Zac Hatfield-Dodds.
+
+..
+
+.. bpo: 37212
+.. date: 2019-06-22-22-00-35
+.. nonce: Zhv-tq
+.. section: Library
+
+:func:`unittest.mock.call` now preserves the order of keyword arguments in
+repr output. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 37372
+.. date: 2019-06-22-12-30-00
+.. nonce: kIKqZ6
+.. section: Library
+
+Fix error unpickling datetime.time objects from Python 2 with seconds>=24.
+Patch by Justin Blanchard.
+
+..
+
+.. bpo: 37345
+.. date: 2019-06-22-08-51-44
+.. nonce: o8XABX
+.. section: Library
+
+Add formal support for UDPLITE sockets. Support was present before, but it
+is now easier to detect support with ``hasattr(socket, 'IPPROTO_UDPLITE')``
+and there are constants defined for each of the values needed:
+:py:obj:`socket.IPPROTO_UDPLITE`, :py:obj:`UDPLITE_SEND_CSCOV`, and
+:py:obj:`UDPLITE_RECV_CSCOV`. Patch by Gabe Appleton.
+
+..
+
+.. bpo: 37358
+.. date: 2019-06-21-14-54-02
+.. nonce: RsASpn
+.. section: Library
+
+Optimized ``functools.partial`` by using vectorcall.
+
+..
+
+.. bpo: 37347
+.. date: 2019-06-20-14-23-48
+.. nonce: Gf9yYI
+.. section: Library
+
+:meth:`sqlite3.Connection.create_aggregate`,
+:meth:`sqlite3.Connection.create_function`,
+:meth:`sqlite3.Connection.set_authorizer`,
+:meth:`sqlite3.Connection.set_progress_handler`
+:meth:`sqlite3.Connection.set_trace_callback` methods lead to segfaults if
+some of these methods are called twice with an equal object but not the
+same. Now callbacks are stored more carefully. Patch by Aleksandr Balezin.
+
+..
+
+.. bpo: 37163
+.. date: 2019-06-19-10-35-53
+.. nonce: 9pPg2F
+.. section: Library
+
+The *obj* argument of :func:`dataclasses.replace` is positional-only now.
+
+..
+
+.. bpo: 37085
+.. date: 2019-06-18-16-29-31
+.. nonce: GeYaD6
+.. section: Library
+
+Add the optional Linux SocketCAN Broadcast Manager constants, used as flags
+to configure the BCM behaviour, in the socket module. Patch by Karl Ding.
+
+..
+
+.. bpo: 37328
+.. date: 2019-06-18-15-31-33
+.. nonce: 2PW1-l
+.. section: Library
+
+``HTMLParser.unescape`` is removed. It was undocumented and deprecated
+since Python 3.4.
+
+..
+
+.. bpo: 37305
+.. date: 2019-06-18-13-59-55
+.. nonce: fGzWlP
+.. section: Library
+
+Add .webmanifest -> application/manifest+json to list of recognized file
+types and content type headers
+
+..
+
+.. bpo: 37320
+.. date: 2019-06-17-22-10-37
+.. nonce: ffieYa
+.. section: Library
+
+``aifc.openfp()`` alias to ``aifc.open()``, ``sunau.openfp()`` alias to
+``sunau.open()``, and ``wave.openfp()`` alias to ``wave.open()`` have been
+removed. They were deprecated since Python 3.7.
+
+..
+
+.. bpo: 37315
+.. date: 2019-06-17-11-59-52
+.. nonce: o1xFC0
+.. section: Library
+
+Deprecated accepting floats with integral value (like ``5.0``) in
+:func:`math.factorial`.
+
+..
+
+.. bpo: 37312
+.. date: 2019-06-17-10-03-52
+.. nonce: qKvBfF
+.. section: Library
+
+``_dummy_thread`` and ``dummy_threading`` modules have been removed. These
+modules were deprecated since Python 3.7 which requires threading support.
+
+..
+
+.. bpo: 33972
+.. date: 2019-06-15-14-39-50
+.. nonce: XxnNPw
+.. section: Library
+
+Email with single part but content-type set to ``multipart/*`` doesn't raise
+AttributeError anymore.
+
+..
+
+.. bpo: 37280
+.. date: 2019-06-14-13-30-47
+.. nonce: Fxur0F
+.. section: Library
+
+Use threadpool for reading from file for sendfile fallback mode.
+
+..
+
+.. bpo: 37279
+.. date: 2019-06-14-13-25-56
+.. nonce: OHlW6l
+.. section: Library
+
+Fix asyncio sendfile support when sendfile sends extra data in fallback
+mode.
+
+..
+
+.. bpo: 19865
+.. date: 2019-06-14-08-30-16
+.. nonce: FRGH4I
+.. section: Library
+
+:func:`ctypes.create_unicode_buffer()` now also supports non-BMP characters
+on platforms with 16-bit :c:type:`wchar_t` (for example, Windows and AIX).
+
+..
+
+.. bpo: 37266
+.. date: 2019-06-13-11-59-52
+.. nonce: goLjef
+.. section: Library
+
+In a subinterpreter, spawning a daemon thread now raises an exception.
+Daemon threads were never supported in subinterpreters. Previously, the
+subinterpreter finalization crashed with a Python fatal error if a daemon
+thread was still running.
+
+..
+
+.. bpo: 37210
+.. date: 2019-06-12-16-10-50
+.. nonce: r4yMg6
+.. section: Library
+
+Allow pure Python implementation of :mod:`pickle` to work even when the C
+:mod:`_pickle` module is unavailable.
+
+..
+
+.. bpo: 21872
+.. date: 2019-06-12-08-56-22
+.. nonce: V9QGGN
+.. section: Library
+
+Fix :mod:`lzma`: module decompresses data incompletely. When decompressing a
+FORMAT_ALONE format file, and it doesn't have the end marker, sometimes the
+last one to dozens bytes can't be output. Patch by Ma Lin.
+
+..
+
+.. bpo: 35922
+.. date: 2019-06-11-19-34-29
+.. nonce: rxpzWr
+.. section: Library
+
+Fix :meth:`RobotFileParser.crawl_delay` and
+:meth:`RobotFileParser.request_rate` to return ``None`` rather than raise
+:exc:`AttributeError` when no relevant rule is defined in the robots.txt
+file. Patch by Rémi Lapeyre.
+
+..
+
+.. bpo: 35766
+.. date: 2019-06-11-16-41-40
+.. nonce: v1Kj-T
+.. section: Library
+
+Change the format of feature_version to be a (major, minor) tuple.
+
+..
+
+.. bpo: 36607
+.. date: 2019-06-11-13-52-04
+.. nonce: 5_mJkQ
+.. section: Library
+
+Eliminate :exc:`RuntimeError` raised by :func:`asyncio.all_tasks()` if
+internal tasks weak set is changed by another thread during iteration.
+
+..
+
+.. bpo: 18748
+.. date: 2019-06-11-01-54-19
+.. nonce: ADqCkq
+.. section: Library
+
+:class:`_pyio.IOBase` destructor now does nothing if getting the ``closed``
+attribute fails to better mimic :class:`_io.IOBase` finalizer.
+
+..
+
+.. bpo: 36402
+.. date: 2019-06-11-00-35-02
+.. nonce: b0IJVp
+.. section: Library
+
+Fix a race condition at Python shutdown when waiting for threads. Wait until
+the Python thread state of all non-daemon threads get deleted (join all
+non-daemon threads), rather than just wait until non-daemon Python threads
+complete.
+
+..
+
+.. bpo: 37206
+.. date: 2019-06-09-22-25-03
+.. nonce: 2WBg4q
+.. section: Library
+
+Default values which cannot be represented as Python objects no longer
+improperly represented as ``None`` in function signatures.
+
+..
+
+.. bpo: 37111
+.. date: 2019-06-09-17-22-33
+.. nonce: 2I0z2k
+.. section: Library
+
+Added ``encoding`` and ``errors`` keyword parameters to
+``logging.basicConfig``.
+
+..
+
+.. bpo: 12144
+.. date: 2019-06-08-23-26-58
+.. nonce: Z7mz-q
+.. section: Library
+
+Ensure cookies with ``expires`` attribute are handled in
+:meth:`CookieJar.make_cookies`.
+
+..
+
+.. bpo: 34886
+.. date: 2019-06-08-16-03-19
+.. nonce: Ov-pc9
+.. section: Library
+
+Fix an unintended ValueError from :func:`subprocess.run` when checking for
+conflicting `input` and `stdin` or `capture_output` and `stdout` or `stderr`
+args when they were explicitly provided but with `None` values within a
+passed in `**kwargs` dict rather than as passed directly by name. Patch
+contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 37173
+.. date: 2019-06-08-11-33-48
+.. nonce: 0e_8gS
+.. section: Library
+
+The exception message for ``inspect.getfile()`` now correctly reports the
+passed class rather than the builtins module.
+
+..
+
+.. bpo: 37178
+.. date: 2019-06-07-17-16-09
+.. nonce: Day_oB
+.. section: Library
+
+Give math.perm() a one argument form that means the same as
+math.factorial().
+
+..
+
+.. bpo: 37178
+.. date: 2019-06-07-17-11-34
+.. nonce: b1StSv
+.. section: Library
+
+For math.perm(n, k), let k default to n, giving the same result as
+factorial.
+
+..
+
+.. bpo: 37165
+.. date: 2019-06-05-11-48-19
+.. nonce: V_rwfE
+.. section: Library
+
+Converted _collections._count_elements to use the Argument Clinic.
+
+..
+
+.. bpo: 34767
+.. date: 2019-06-04-23-44-52
+.. nonce: BpDShN
+.. section: Library
+
+Do not always create a :class:`collections.deque` in :class:`asyncio.Lock`.
+
+..
+
+.. bpo: 37158
+.. date: 2019-06-04-22-25-38
+.. nonce: JKm15S
+.. section: Library
+
+Speed-up statistics.fmean() by switching from a function to a generator.
+
+..
+
+.. bpo: 34282
+.. date: 2019-06-04-15-39-14
+.. nonce: aAK54n
+.. section: Library
+
+Remove ``Enum._convert`` method, deprecated in 3.8.
+
+..
+
+.. bpo: 37150
+.. date: 2019-06-04-14-44-41
+.. nonce: TTzHxj
+.. section: Library
+
+`argparse._ActionsContainer.add_argument` now throws error, if someone
+accidentally pass FileType class object instead of instance of FileType as
+`type` argument
+
+..
+
+.. bpo: 28724
+.. date: 2019-05-30-15-51-42
+.. nonce: 34TrS8
+.. section: Library
+
+The socket module now has the :func:`socket.send_fds` and
+:func:`socket.recv.fds` methods. Contributed by Joannah Nanjekye, Shinya
+Okano and Victor Stinner.
+
+..
+
+.. bpo: 35621
+.. date: 2019-05-28-19-03-46
+.. nonce: Abc1lf
+.. section: Library
+
+Support running asyncio subprocesses when execution event loop in a thread
+on UNIX.
+
+..
+
+.. bpo: 36520
+.. date: 2019-05-28-02-37-00
+.. nonce: W4tday
+.. section: Library
+
+Lengthy email headers with UTF-8 characters are now properly encoded when
+they are folded. Patch by Jeffrey Kintscher.
+
+..
+
+.. bpo: 30835
+.. date: 2019-05-27-15-29-46
+.. nonce: 3FoaWH
+.. section: Library
+
+Fixed a bug in email parsing where a message with invalid bytes in
+content-transfer-encoding of a multipart message can cause an
+AttributeError. Patch by Andrew Donnellan.
+
+..
+
+.. bpo: 31163
+.. date: 2019-05-26-16-34-53
+.. nonce: 21A802
+.. section: Library
+
+pathlib.Path instance's rename and replace methods now return the new Path
+instance.
+
+..
+
+.. bpo: 25068
+.. date: 2019-05-22-04-52-35
+.. nonce: vR_rC-
+.. section: Library
+
+:class:`urllib.request.ProxyHandler` now lowercases the keys of the passed
+dictionary.
+
+..
+
+.. bpo: 26185
+.. date: 2019-05-20-14-17-29
+.. nonce: pQW4mI
+.. section: Library
+
+Fix :func:`repr` on empty :class:`ZipInfo` object. Patch by Mickaël
+Schoentgen.
+
+..
+
+.. bpo: 21315
+.. date: 2019-05-19-10-48-46
+.. nonce: PgXVqF
+.. section: Library
+
+Email headers containing RFC2047 encoded words are parsed despite the
+missing whitespace, and a defect registered. Also missing trailing
+whitespace after encoded words is now registered as a defect.
+
+..
+
+.. bpo: 31904
+.. date: 2019-05-17-16-50-02
+.. nonce: 4a5ggm
+.. section: Library
+
+Port test_datetime to VxWorks: skip zoneinfo tests on VxWorks
+
+..
+
+.. bpo: 35805
+.. date: 2019-05-17-15-11-08
+.. nonce: E4YwYz
+.. section: Library
+
+Add parser for Message-ID header and add it to default HeaderRegistry. This
+should prevent folding of Message-ID using RFC 2048 encoded words.
+
+..
+
+.. bpo: 36871
+.. date: 2019-05-12-12-58-37
+.. nonce: 6xiEHZ
+.. section: Library
+
+Ensure method signature is used instead of constructor signature of a class
+while asserting mock object against method calls. Patch by Karthikeyan
+Singaravelan.
+
+..
+
+.. bpo: 35070
+.. date: 2019-05-09-18-50-55
+.. nonce: 4vaqNL
+.. section: Library
+
+posix.getgrouplist() now works correctly when the user belongs to
+NGROUPS_MAX supplemental groups. Patch by Jeffrey Kintscher.
+
+..
+
+.. bpo: 31783
+.. date: 2019-05-07-19-25-55
+.. nonce: lgLo69
+.. section: Library
+
+Fix race condition in ThreadPoolExecutor when worker threads are created
+during interpreter shutdown.
+
+..
+
+.. bpo: 36582
+.. date: 2019-05-07-17-42-36
+.. nonce: L_dxR6
+.. section: Library
+
+Fix ``UserString.encode()`` to correctly return ``bytes`` rather than a
+``UserString`` instance.
+
+..
+
+.. bpo: 32424
+.. date: 2019-04-28-10-34-19
+.. nonce: eqNPhM
+.. section: Library
+
+Deprecate xml.etree.ElementTree.Element.copy() in favor of copy.copy().
+
+Patch by Gordon P. Hemsley
+
+..
+
+.. bpo: 36564
+.. date: 2019-04-08-13-00-13
+.. nonce: _n67m_
+.. section: Library
+
+Fix infinite loop in email header folding logic that would be triggered when
+an email policy's max_line_length is not long enough to include the required
+markup and any values in the message. Patch by Paul Ganssle
+
+..
+
+.. bpo: 36543
+.. date: 2019-04-06-20-08-12
+.. nonce: RPjmUz
+.. section: Library
+
+Removed methods Element.getchildren(), Element.getiterator() and
+ElementTree.getiterator() and the xml.etree.cElementTree module.
+
+..
+
+.. bpo: 36409
+.. date: 2019-03-23-16-42-46
+.. nonce: ZYVKao
+.. section: Library
+
+Remove the old plistlib API deprecated in Python 3.4
+
+..
+
+.. bpo: 36302
+.. date: 2019-03-21-19-23-46
+.. nonce: Yc591g
+.. section: Library
+
+distutils sorts source file lists so that Extension .so files build more
+reproducibly by default
+
+..
+
+.. bpo: 36250
+.. date: 2019-03-09-16-04-12
+.. nonce: tSK4N1
+.. section: Library
+
+Ignore ``ValueError`` from ``signal`` with ``interaction`` in non-main
+thread.
+
+..
+
+.. bpo: 36046
+.. date: 2019-02-19-17-32-45
+.. nonce: fX9OPj
+.. section: Library
+
+Added ``user``, ``group`` and ``extra_groups`` parameters to the
+subprocess.Popen constructor. Patch by Patrick McLean.
+
+..
+
+.. bpo: 32627
+.. date: 2019-02-03-19-13-08
+.. nonce: b68f64
+.. section: Library
+
+Fix compile error when ``_uuid`` headers conflicting included.
+
+..
+
+.. bpo: 35800
+.. date: 2019-01-25-17-12-17
+.. nonce: MCGJdQ
+.. section: Library
+
+Deprecate ``smtpd.MailmanProxy`` ready for future removal.
+
+..
+
+.. bpo: 35168
+.. date: 2019-01-22-09-23-20
+.. nonce: UGv2yW
+.. section: Library
+
+:attr:`shlex.shlex.punctuation_chars` is now a read-only property.
+
+..
+
+.. bpo: 8538
+.. date: 2019-01-09-16-18-52
+.. nonce: PfVZia
+.. section: Library
+
+Add support for boolean actions like ``--foo`` and ``--no-foo`` to argparse.
+Patch contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 20504
+.. date: 2018-11-21-18-05-50
+.. nonce: kG0ub5
+.. section: Library
+
+Fixes a bug in :mod:`cgi` module when a multipart/form-data request has no
+`Content-Length` header.
+
+..
+
+.. bpo: 25988
+.. date: 2018-11-19-10-23-58
+.. nonce: 6o7gGK
+.. section: Library
+
+The abstract base classes in :mod:`collections.abc` no longer are exposed in
+the regular :mod:`collections` module.
+
+..
+
+.. bpo: 11122
+.. date: 2018-11-12-19-08-50
+.. nonce: Gj7BQn
+.. section: Library
+
+Distutils won't check for rpmbuild in specified paths only.
+
+..
+
+.. bpo: 34775
+.. date: 2018-09-23-03-18-52
+.. nonce: vHeuHk
+.. section: Library
+
+Division handling of PurePath now returns NotImplemented instead of raising
+a TypeError when passed something other than an instance of str or PurePath.
+Patch by Roger Aiudi.
+
+..
+
+.. bpo: 34749
+.. date: 2018-09-21-13-23-29
+.. nonce: B0k819
+.. section: Library
+
+:func:`binascii.a2b_base64` is now up to 2 times faster. Patch by Sergey
+Fedoseev.
+
+..
+
+.. bpo: 34519
+.. date: 2018-08-27-15-44-50
+.. nonce: cPlH1h
+.. section: Library
+
+Add additional aliases for HP Roman 8. Patch by Michael Osipov.
+
+..
+
+.. bpo: 28009
+.. date: 2018-08-04-12-26-11
+.. nonce: 4JcHZb
+.. section: Library
+
+Fix uuid.getnode() on platforms with '.' as MAC Addr delimiter as well fix
+for MAC Addr format that omits a leading 0 in MAC Addr values. Currently,
+AIX is the only know platform with these settings. Patch by Michael Felt.
+
+..
+
+.. bpo: 30618
+.. date: 2018-07-14-13-48-56
+.. nonce: T5AUF6
+.. section: Library
+
+Add :meth:`~pathlib.Path.readlink`. Patch by Girts Folkmanis.
+
+..
+
+.. bpo: 32498
+.. date: 2018-06-17-21-02-25
+.. nonce: La3TZz
+.. section: Library
+
+Made :func:`urllib.parse.unquote()` accept bytes in addition to strings.
+Patch by Stein Karlsen.
+
+..
+
+.. bpo: 33348
+.. date: 2018-04-24-13-18-48
+.. nonce: XaJDei
+.. section: Library
+
+lib2to3 now recognizes expressions after ``*`` and `**` like in ``f(*[] or
+[])``.
+
+..
+
+.. bpo: 32689
+.. date: 2018-02-13-17-58-30
+.. nonce: a-3SnH
+.. section: Library
+
+Update :func:`shutil.move` function to allow for Path objects to be used as
+source argument. Patch by Emily Morehouse and Maxwell "5.13b" McKinnon.
+
+..
+
+.. bpo: 32820
+.. date: 2018-02-13-12-25-43
+.. nonce: 0stF0u
+.. section: Library
+
+Added __format__ to IPv4 and IPv6 classes. Always outputs a fully zero-
+padded string. Supports b/x/n modifiers (bin/hex/native format). Native
+format for IPv4 is bin, native format for IPv6 is hex. Also supports '#' and
+'_' modifiers.
+
+..
+
+.. bpo: 27657
+.. date: 2017-12-26-14-32-23
+.. nonce: 6BhyVK
+.. section: Library
+
+Fix urllib.parse.urlparse() with numeric paths. A string like "path:80" is
+no longer parsed as a path but as a scheme ("path") and a path ("80").
+
+..
+
+.. bpo: 4963
+.. date: 2017-08-15-11-24-41
+.. nonce: LRYres
+.. section: Library
+
+Fixed non-deterministic behavior related to mimetypes extension mapping and
+module reinitialization.
+
+..
+
+.. bpo: 21767
+.. date: 2019-11-17-11-54-57
+.. nonce: Qq3Dos
+.. section: Documentation
+
+Explicitly mention abc support in functools.singledispatch
+
+..
+
+.. bpo: 38816
+.. date: 2019-11-15-11-39-13
+.. nonce: vUaSVL
+.. section: Documentation
+
+Provides more details about the interaction between :c:func:`fork` and
+CPython's runtime, focusing just on the C-API. This includes cautions about
+where :c:func:`fork` should and shouldn't be called.
+
+..
+
+.. bpo: 38351
+.. date: 2019-11-15-09-22-28
+.. nonce: xwhlse
+.. section: Documentation
+
+Modernize :mod:`email` examples from %-formatting to f-strings.
+
+..
+
+.. bpo: 38778
+.. date: 2019-11-12-15-31-09
+.. nonce: PHhTlv
+.. section: Documentation
+
+Document the fact that :exc:`RuntimeError` is raised if :meth:`os.fork` is
+called in a subinterpreter.
+
+..
+
+.. bpo: 38592
+.. date: 2019-10-26-13-19-07
+.. nonce: Y96BYO
+.. section: Documentation
+
+Add Brazilian Portuguese to the language switcher at Python Documentation
+website.
+
+..
+
+.. bpo: 38294
+.. date: 2019-09-27-23-37-41
+.. nonce: go_jFf
+.. section: Documentation
+
+Add list of no-longer-escaped chars to re.escape documentation
+
+..
+
+.. bpo: 38053
+.. date: 2019-09-07-19-09-01
+.. nonce: lttibE
+.. section: Documentation
+
+Modernized the plistlib documentation
+
+..
+
+.. bpo: 26868
+.. date: 2019-09-07-15-55-46
+.. nonce: Raw0Gd
+.. section: Documentation
+
+Fix example usage of :c:func:`PyModule_AddObject` to properly handle errors.
+
+..
+
+.. bpo: 36797
+.. date: 2019-09-05-14-47-51
+.. nonce: KN9Ga5
+.. section: Documentation
+
+Fix a dead link in the distutils API Reference.
+
+..
+
+.. bpo: 37977
+.. date: 2019-08-29-14-38-01
+.. nonce: pML-UI
+.. section: Documentation
+
+Warn more strongly and clearly about pickle insecurity
+
+..
+
+.. bpo: 37979
+.. date: 2019-08-29-10-40-05
+.. nonce: TAUx_E
+.. section: Documentation
+
+Added a link to dateutil.parser.isoparse in the datetime.fromisoformat
+documentation. Patch by Paul Ganssle
+
+..
+
+.. bpo: 12707
+.. date: 2019-08-27-01-14-59
+.. nonce: Yj3_7_
+.. section: Documentation
+
+Deprecate info(), geturl(), getcode() methods in favor of the headers, url,
+and status properties, respectively, for HTTPResponse and addinfourl. Also
+deprecate the code attribute of addinfourl in favor of the status attribute.
+Patch by Ashwin Ramaswami
+
+..
+
+.. bpo: 37937
+.. date: 2019-08-24-12-59-06
+.. nonce: F7fHbt
+.. section: Documentation
+
+Mention ``frame.f_trace`` in :func:`sys.settrace` docs.
+
+..
+
+.. bpo: 37878
+.. date: 2019-08-16-20-01-10
+.. nonce: MvA6rZ
+.. section: Documentation
+
+Make :c:func:`PyThreadState_DeleteCurrent` Internal.
+
+..
+
+.. bpo: 37759
+.. date: 2019-08-04-19-20-58
+.. nonce: EHRF4i
+.. section: Documentation
+
+Beginning edits to Whatsnew 3.8
+
+..
+
+.. bpo: 37726
+.. date: 2019-07-31-11-40-06
+.. nonce: h-3o9a
+.. section: Documentation
+
+Stop recommending getopt in the tutorial for command line argument parsing
+and promote argparse.
+
+..
+
+.. bpo: 32910
+.. date: 2019-07-25-10-30-32
+.. nonce: caLLAe
+.. section: Documentation
+
+Remove implementation-specific behaviour of how venv's Deactivate works.
+
+..
+
+.. bpo: 37256
+.. date: 2019-07-16-14-48-12
+.. nonce: qJTrBb
+.. section: Documentation
+
+Fix wording of arguments for :class:`Request` in :mod:`urllib.request`
+
+..
+
+.. bpo: 37284
+.. date: 2019-07-13-12-58-20
+.. nonce: rP8WpB
+.. section: Documentation
+
+Add a brief note to indicate that any new ``sys.implementation`` required
+attributes must go through the PEP process.
+
+..
+
+.. bpo: 30088
+.. date: 2019-07-13-12-43-01
+.. nonce: CIcBjy
+.. section: Documentation
+
+Documented that :class:`mailbox.Maildir` constructor doesn't attempt to
+verify the maildir folder layout correctness. Patch by Sviatoslav Sydorenko.
+
+..
+
+.. bpo: 37521
+.. date: 2019-07-12-15-09-56
+.. nonce: 7tiFR-
+.. section: Documentation
+
+Fix `importlib` examples to insert any newly created modules via
+importlib.util.module_from_spec() immediately into sys.modules instead of
+after calling loader.exec_module().
+
+Thanks to Benjamin Mintz for finding the bug.
+
+..
+
+.. bpo: 37456
+.. date: 2019-07-06-17-51-36
+.. nonce: lgAQHn
+.. section: Documentation
+
+Slash ('/') is now part of syntax.
+
+..
+
+.. bpo: 37487
+.. date: 2019-07-06-17-19-26
+.. nonce: QagfZ5
+.. section: Documentation
+
+Fix PyList_GetItem index description to include 0.
+
+..
+
+.. bpo: 37149
+.. date: 2019-07-06-02-19-02
+.. nonce: NumHn3
+.. section: Documentation
+
+Replace the dead link to the Tkinter 8.5 reference by John Shipman, New
+Mexico Tech, with a link to the archive.org copy.
+
+..
+
+.. bpo: 37478
+.. date: 2019-07-06-00-57-27
+.. nonce: B0ioLw
+.. section: Documentation
+
+Added possible exceptions to the description of os.chdir().
+
+..
+
+.. bpo: 34903
+.. date: 2019-06-17-09-36-46
+.. nonce: r_wGRc
+.. section: Documentation
+
+Documented that in :meth:`datetime.datetime.strptime()`, the leading zero in
+some two-digit formats is optional. Patch by Mike Gleen.
+
+..
+
+.. bpo: 36260
+.. date: 2019-06-04-09-29-00
+.. nonce: WrGuc-
+.. section: Documentation
+
+Add decompression pitfalls to zipfile module documentation.
+
+..
+
+.. bpo: 37004
+.. date: 2019-05-22-04-30-07
+.. nonce: BRgxrt
+.. section: Documentation
+
+In the documentation for difflib, a note was added explicitly warning that
+the results of SequenceMatcher's ratio method may depend on the order of the
+input strings.
+
+..
+
+.. bpo: 36960
+.. date: 2019-05-18-16-25-44
+.. nonce: xEKHXj
+.. section: Documentation
+
+Restructured the :mod:`datetime` docs in the interest of making them more
+user-friendly and improving readability. Patch by Brad Solomon.
+
+..
+
+.. bpo: 36487
+.. date: 2019-04-02-19-23-00
+.. nonce: Jg6-MG
+.. section: Documentation
+
+Make C-API docs clear about what the "main" interpreter is.
+
+..
+
+.. bpo: 23460
+.. date: 2019-02-14-07-12-48
+.. nonce: Iqiqtm
+.. section: Documentation
+
+The documentation for decimal string formatting using the `:g` specifier has
+been updated to reflect the correct exponential notation cutoff point.
+Original patch contributed by Tuomas Suutari.
+
+..
+
+.. bpo: 35803
+.. date: 2019-01-21-14-30-59
+.. nonce: yae6Lq
+.. section: Documentation
+
+Document and test that ``tempfile`` functions may accept a :term:`path-like
+object` for the ``dir`` argument. Patch by Anthony Sottile.
+
+..
+
+.. bpo: 33944
+.. date: 2018-10-26-18-10-29
+.. nonce: V1YeOA
+.. section: Documentation
+
+Added a note about the intended use of code in .pth files.
+
+..
+
+.. bpo: 34293
+.. date: 2018-07-31-15-38-26
+.. nonce: yHupAL
+.. section: Documentation
+
+Fix the Doc/Makefile regarding PAPER environment variable and PDF builds
+
+..
+
+.. bpo: 25237
+.. date: 2018-06-02-12-55-23
+.. nonce: m8-JMu
+.. section: Documentation
+
+Add documentation for tkinter modules
+
+..
+
+.. bpo: 38614
+.. date: 2019-10-30-15-12-32
+.. nonce: M6UnLB
+.. section: Tests
+
+Fix test_communicate() of test_asyncio.test_subprocess: use
+``support.LONG_TIMEOUT`` (5 minutes), instead of just 1 minute.
+
+..
+
+.. bpo: 38614
+.. date: 2019-10-28-15-56-02
+.. nonce: aDdDYE
+.. section: Tests
+
+Add timeout constants to :mod:`test.support`:
+:data:`~test.support.LOOPBACK_TIMEOUT`,
+:data:`~test.support.INTERNET_TIMEOUT`, :data:`~test.support.SHORT_TIMEOUT`
+and :data:`~test.support.LONG_TIMEOUT`.
+
+..
+
+.. bpo: 38502
+.. date: 2019-10-17-00-49-38
+.. nonce: vUEic7
+.. section: Tests
+
+test.regrtest now uses process groups in the multiprocessing mode (-jN
+command line option) if process groups are available: if :func:`os.setsid`
+and :func:`os.killpg` functions are available.
+
+..
+
+.. bpo: 35998
+.. date: 2019-10-16-01-36-15
+.. nonce: G305Bf
+.. section: Tests
+
+Fix a race condition in test_asyncio.test_start_tls_server_1(). Previously,
+there was a race condition between the test main() function which replaces
+the protocol and the test ServerProto protocol which sends ANSWER once it
+gets HELLO. Now, only the test main() function is responsible to send data,
+ServerProto no longer sends data.
+
+..
+
+.. bpo: 38470
+.. date: 2019-10-14-22-46-35
+.. nonce: NHtzpy
+.. section: Tests
+
+Fix ``test_compileall.test_compile_dir_maxlevels()`` on Windows without long
+path support: only create 3 subdirectories instead of between 20 and 100
+subdirectories.
+
+..
+
+.. bpo: 37531
+.. date: 2019-10-08-16-42-05
+.. nonce: 7v-_Ca
+.. section: Tests
+
+On timeout, regrtest no longer attempts to call ``popen.communicate()``
+again: it can hang until all child processes using stdout and stderr pipes
+completes. Kill the worker process and ignores its output. Change also the
+faulthandler timeout of the main process from 1 minute to 5 minutes, for
+Python slowest buildbots.
+
+..
+
+.. bpo: 38239
+.. date: 2019-09-26-15-48-36
+.. nonce: MfoVzY
+.. section: Tests
+
+Fix test_gdb for Link Time Optimization (LTO) builds.
+
+..
+
+.. bpo: 38275
+.. date: 2019-09-25-14-40-57
+.. nonce: -kdveI
+.. section: Tests
+
+test_ssl now handles disabled TLS/SSL versions better. OpenSSL's crypto
+policy and run-time settings are recognized and tests for disabled versions
+are skipped. Tests also accept more TLS minimum_versions for platforms that
+override OpenSSL's default with strict settings.
+
+..
+
+.. bpo: 38271
+.. date: 2019-09-25-13-11-29
+.. nonce: iHXNIg
+.. section: Tests
+
+The private keys for test_ssl were encrypted with 3DES in traditional PKCS#5
+format. 3DES and the digest algorithm of PKCS#5 are blocked by some strict
+crypto policies. Use PKCS#8 format with AES256 encryption instead.
+
+..
+
+.. bpo: 38270
+.. date: 2019-09-25-12-18-31
+.. nonce: _x-9uH
+.. section: Tests
+
+test.support now has a helper function to check for availability of a hash
+digest function. Several tests are refactored avoid MD5 and use SHA256
+instead. Other tests are marked to use MD5 and skipped when MD5 is disabled.
+
+..
+
+.. bpo: 37123
+.. date: 2019-09-24-12-30-55
+.. nonce: IoutBn
+.. section: Tests
+
+Multiprocessing test test_mymanager() now also expects -SIGTERM, not only
+exitcode 0. BaseManager._finalize_manager() sends SIGTERM to the manager
+process if it takes longer than 1 second to stop, which happens on slow
+buildbots.
+
+..
+
+.. bpo: 38212
+.. date: 2019-09-24-12-24-05
+.. nonce: IWbhWz
+.. section: Tests
+
+Multiprocessing tests: increase test_queue_feeder_donot_stop_onexc() timeout
+from 1 to 60 seconds.
+
+..
+
+.. bpo: 38117
+.. date: 2019-09-11-17-22-32
+.. nonce: X7LgGY
+.. section: Tests
+
+Test with OpenSSL 1.1.1d
+
+..
+
+.. bpo: 38018
+.. date: 2019-09-03-19-33-10
+.. nonce: zTrMu7
+.. section: Tests
+
+Increase code coverage for multiprocessing.shared_memory.
+
+..
+
+.. bpo: 37805
+.. date: 2019-08-25-19-51-46
+.. nonce: Kl1sti
+.. section: Tests
+
+Add tests for json.dump(..., skipkeys=True). Patch by Dong-hee Na.
+
+..
+
+.. bpo: 37531
+.. date: 2019-08-20-19-24-19
+.. nonce: wRoXfU
+.. section: Tests
+
+Enhance regrtest multiprocess timeout: write a message when killing a worker
+process, catch popen.kill() and popen.wait() exceptions, put a timeout on
+the second call to popen.communicate().
+
+..
+
+.. bpo: 37876
+.. date: 2019-08-16-16-15-14
+.. nonce: m3k1w3
+.. section: Tests
+
+Add tests for ROT-13 codec.
+
+..
+
+.. bpo: 36833
+.. date: 2019-07-18-14-52-58
+.. nonce: Zoe9ek
+.. section: Tests
+
+Added tests for PyDateTime_xxx_GET_xxx() macros of the C API of the
+:mod:`datetime` module. Patch by Joannah Nanjekye.
+
+..
+
+.. bpo: 37558
+.. date: 2019-07-11-10-33-56
+.. nonce: SKHRsL
+.. section: Tests
+
+Fix test_shared_memory_cleaned_after_process_termination name handling
+
+..
+
+.. bpo: 37526
+.. date: 2019-07-09-12-33-18
+.. nonce: vmm5y7
+.. section: Tests
+
+Add :func:`test.support.catch_threading_exception`: context manager catching
+:class:`threading.Thread` exception using :func:`threading.excepthook`.
+
+..
+
+.. bpo: 37421
+.. date: 2019-07-08-10-11-36
+.. nonce: OY77go
+.. section: Tests
+
+test_concurrent_futures now explicitly stops the ForkServer instance if it's
+running.
+
+..
+
+.. bpo: 37421
+.. date: 2019-07-05-14-47-55
+.. nonce: n8o2to
+.. section: Tests
+
+multiprocessing tests now stop the ForkServer instance if it's running:
+close the "alive" file descriptor to ask the server to stop and then remove
+its UNIX address.
+
+..
+
+.. bpo: 37421
+.. date: 2019-07-03-00-05-28
+.. nonce: ORGRSG
+.. section: Tests
+
+test_distutils.test_build_ext() is now able to remove the temporary
+directory on Windows: don't import the newly built C extension ("xx") in the
+current process, but test it in a separated process.
+
+..
+
+.. bpo: 37421
+.. date: 2019-07-02-23-29-06
+.. nonce: WEfc5A
+.. section: Tests
+
+test_concurrent_futures now cleans up multiprocessing to remove immediately
+temporary directories created by multiprocessing.util.get_temp_dir().
+
+..
+
+.. bpo: 37421
+.. date: 2019-07-02-23-20-35
+.. nonce: HCkKWz
+.. section: Tests
+
+test_winconsoleio doesn't leak a temporary file anymore: use
+tempfile.TemporaryFile() to remove it when the test completes.
+
+..
+
+.. bpo: 37421
+.. date: 2019-07-01-19-57-26
+.. nonce: NFH1f0
+.. section: Tests
+
+multiprocessing tests now explicitly call ``_run_finalizers()`` to
+immediately remove temporary directories created by tests.
+
+..
+
+.. bpo: 37421
+.. date: 2019-07-01-19-56-17
+.. nonce: bOe350
+.. section: Tests
+
+urllib.request tests now call :func:`~urllib.request.urlcleanup` to remove
+temporary files created by ``urlretrieve()`` tests and to clear the
+``_opener`` global variable set by ``urlopen()`` and functions calling
+indirectly ``urlopen()``.
+
+..
+
+.. bpo: 37472
+.. date: 2019-07-01-17-19-47
+.. nonce: WzkEAx
+.. section: Tests
+
+Remove ``Lib/test/outstanding_bugs.py``.
+
+..
+
+.. bpo: 37199
+.. date: 2019-06-29-23-56-28
+.. nonce: FHDsLf
+.. section: Tests
+
+Fix test failures when IPv6 is unavailable or disabled.
+
+..
+
+.. bpo: 19696
+.. date: 2019-06-29-16-02-21
+.. nonce: 05ijhN
+.. section: Tests
+
+Replace deprecated method "random.choose" with "random.choice" in
+"test_pkg_import.py".
+
+..
+
+.. bpo: 37335
+.. date: 2019-06-28-16-37-52
+.. nonce: o5S2hY
+.. section: Tests
+
+Remove no longer necessary code from c locale coercion tests
+
+..
+
+.. bpo: 37421
+.. date: 2019-06-27-00-37-59
+.. nonce: rVJb3x
+.. section: Tests
+
+Fix test_shutil to no longer leak temporary files.
+
+..
+
+.. bpo: 37411
+.. date: 2019-06-26-15-28-45
+.. nonce: 5lGNhM
+.. section: Tests
+
+Fix test_wsgiref.testEnviron() to no longer depend on the environment
+variables (don't fail if "X" variable is set).
+
+..
+
+.. bpo: 37400
+.. date: 2019-06-25-16-02-43
+.. nonce: cx_EWv
+.. section: Tests
+
+Fix test_os.test_chown(): use os.getgroups() rather than grp.getgrall() to
+get groups. Rename also the test to test_chown_gid().
+
+..
+
+.. bpo: 37359
+.. date: 2019-06-24-10-47-07
+.. nonce: CkdtyO
+.. section: Tests
+
+Add --cleanup option to python3 -m test to remove ``test_python_*``
+directories of previous failed jobs. Add "make cleantest" to run ``python3
+-m test --cleanup``.
+
+..
+
+.. bpo: 37362
+.. date: 2019-06-21-15-47-33
+.. nonce: D3xppx
+.. section: Tests
+
+test_gdb no longer fails if it gets an "unexpected" message on stderr: it
+now ignores stderr. The purpose of test_gdb is to test that python-gdb.py
+commands work as expected, not to test gdb.
+
+..
+
+.. bpo: 35998
+.. date: 2019-06-14-17-05-49
+.. nonce: yX82oD
+.. section: Tests
+
+Avoid TimeoutError in test_asyncio: test_start_tls_server_1()
+
+..
+
+.. bpo: 37278
+.. date: 2019-06-14-12-21-47
+.. nonce: z0HUOr
+.. section: Tests
+
+Fix test_asyncio ProactorLoopCtrlC: join the thread to prevent leaking a
+running thread and leaking a reference.
+
+..
+
+.. bpo: 37261
+.. date: 2019-06-13-12-19-56
+.. nonce: NuKFVo
+.. section: Tests
+
+Fix :func:`test.support.catch_unraisable_exception`: its __exit__() method
+now ignores unraisable exception raised when clearing its ``unraisable``
+attribute.
+
+..
+
+.. bpo: 37069
+.. date: 2019-06-13-00-46-25
+.. nonce: wdktFo
+.. section: Tests
+
+regrtest now uses :func:`sys.unraisablehook` to mark a test as "environment
+altered" (ENV_CHANGED) if it emits an "unraisable exception". Moreover,
+regrtest logs a warning in this case.
+
+Use ``python3 -m test --fail-env-changed`` to catch unraisable exceptions in
+tests.
+
+..
+
+.. bpo: 37252
+.. date: 2019-06-12-14-30-29
+.. nonce: 4o-uLs
+.. section: Tests
+
+Fix assertions in ``test_close`` and ``test_events_mask_overflow`` devpoll
+tests.
+
+..
+
+.. bpo: 37169
+.. date: 2019-06-07-12-23-15
+.. nonce: yfXTFg
+.. section: Tests
+
+Rewrite ``_PyObject_IsFreed()`` unit tests.
+
+..
+
+.. bpo: 37153
+.. date: 2019-06-04-18-30-39
+.. nonce: 711INB
+.. section: Tests
+
+``test_venv.test_multiprocessing()`` now explicitly calls
+``pool.terminate()`` to wait until the pool completes.
+
+..
+
+.. bpo: 34001
+.. date: 2019-06-03-20-47-10
+.. nonce: KvYx9z
+.. section: Tests
+
+Make test_ssl pass with LibreSSL. LibreSSL handles minimum and maximum TLS
+version differently than OpenSSL.
+
+..
+
+.. bpo: 36919
+.. date: 2019-05-28-15-41-34
+.. nonce: -vGt_m
+.. section: Tests
+
+Make ``test_source_encoding.test_issue2301`` implementation independent. The
+test will work now for both CPython and IronPython.
+
+..
+
+.. bpo: 30202
+.. date: 2019-04-15-19-05-35
+.. nonce: Wt7INj
+.. section: Tests
+
+Update ``test.test_importlib.test_abc`` to test ``find_spec()``.
+
+..
+
+.. bpo: 28009
+.. date: 2019-04-11-07-59-43
+.. nonce: s85urF
+.. section: Tests
+
+Modify the test_uuid logic to test when a program is available AND can be
+used to obtain a MACADDR as basis for an UUID. Patch by M. Felt
+
+..
+
+.. bpo: 34596
+.. date: 2018-09-07-01-18-27
+.. nonce: r2-EGd
+.. section: Tests
+
+Fallback to a default reason when :func:`unittest.skip` is uncalled. Patch
+by Naitree Zhu.
+
+..
+
+.. bpo: 38809
+.. date: 2019-11-15-09-25-44
+.. nonce: 9jwta6
+.. section: Build
+
+On Windows, build scripts will now recognize and use python.exe from an
+active virtual env.
+
+..
+
+.. bpo: 38684
+.. date: 2019-11-04-14-30-37
+.. nonce: aed593
+.. section: Build
+
+Fix _hashlib build when Blake2 is disabled, but OpenSSL supports it.
+
+..
+
+.. bpo: 38468
+.. date: 2019-10-13-16-18-24
+.. nonce: buCO84
+.. section: Build
+
+Misc/python-config.in now uses `getvar()` for all still existing
+`sysconfig.get_config_var()` calls. Patch by Joannah Nanjekye.
+
+..
+
+.. bpo: 37415
+.. date: 2019-10-11-15-32-58
+.. nonce: D9RXrq
+.. section: Build
+
+Fix stdatomic.h header check for ICC compiler: the ICC implementation lacks
+atomic_uintptr_t type which is needed by Python.
+
+..
+
+.. bpo: 38301
+.. date: 2019-09-28-02-37-11
+.. nonce: 123456
+.. section: Build
+
+In Solaris family, we must be sure to use ``-D_REENTRANT``. Patch by Jesús
+Cea Avión.
+
+..
+
+.. bpo: 36002
+.. date: 2019-09-13-14-12-36
+.. nonce: Bcl4oe
+.. section: Build
+
+Locate ``llvm-profdata`` and ``llvm-ar`` binaries using ``AC_PATH_TOOL``
+rather than ``AC_PATH_TARGET_TOOL``.
+
+..
+
+.. bpo: 37936
+.. date: 2019-09-10-00-54-48
+.. nonce: E7XEwu
+.. section: Build
+
+The :file:`.gitignore` file systematically keeps "rooted", with a
+non-trailing slash, all the rules that are meant to apply to files in a
+specific place in the repo. Previously, when the intended file to ignore
+happened to be at the root of the repo, we'd most often accidentally also
+ignore files and directories with the same name anywhere in the tree.
+
+..
+
+.. bpo: 37760
+.. date: 2019-08-24-17-39-09
+.. nonce: f3jXuH
+.. section: Build
+
+The :file:`Tools/unicode/makeunicodedata.py` script, which is used for
+converting information from the Unicode Character Database into generated
+code and data used by the methods of :class:`str` and by the
+:mod:`unicodedata` module, now handles each character's data as a
+``dataclass`` with named attributes, rather than a length-18 list of
+different fields.
+
+..
+
+.. bpo: 37936
+.. date: 2019-08-24-00-29-40
+.. nonce: QrORqA
+.. section: Build
+
+The :file:`.gitignore` file no longer applies to any files that are in fact
+tracked in the Git repository. Patch by Greg Price.
+
+..
+
+.. bpo: 37725
+.. date: 2019-07-30-16-26-11
+.. nonce: MkG1TT
+.. section: Build
+
+Change "clean" makefile target to also clean the program guided optimization
+(PGO) data. Previously you would have to use "make clean" and "make
+profile-removal", or "make clobber".
+
+..
+
+.. bpo: 37707
+.. date: 2019-07-29-11-36-16
+.. nonce: Sm-dGk
+.. section: Build
+
+Mark some individual tests to skip when --pgo is used. The tests marked
+increase the PGO task time significantly and likely don't help improve
+optimization of the final executable.
+
+..
+
+.. bpo: 36044
+.. date: 2019-07-11-01-28-24
+.. nonce: gIgfiJ
+.. section: Build
+
+Reduce the number of unit tests run for the PGO generation task. This
+speeds up the task by a factor of about 15x. Running the full unit test
+suite is slow. This change may result in a slightly less optimized build
+since not as many code branches will be executed. If you are willing to
+wait for the much slower build, the old behavior can be restored using
+'./configure [..] PROFILE_TASK="-m test --pgo-extended"'. We make no
+guarantees as to which PGO task set produces a faster build. Users who care
+should run their own relevant benchmarks as results can depend on the
+environment, workload, and compiler tool chain.
+
+..
+
+.. bpo: 37468
+.. date: 2019-07-01-14-39-40
+.. nonce: trbQ-_
+.. section: Build
+
+``make install`` no longer installs ``wininst-*.exe`` files used by
+distutils bdist_wininst: bdist_wininst only works on Windows.
+
+..
+
+.. bpo: 37189
+.. date: 2019-06-17-09-40-59
+.. nonce: j5ebdT
+.. section: Build
+
+Many ``PyRun_XXX()`` functions like :c:func:`PyRun_String` were no longer
+exported in ``libpython38.dll`` by mistake. Export them again to fix the ABI
+compatibility.
+
+..
+
+.. bpo: 25361
+.. date: 2019-03-19-22-07-37
+.. nonce: XO9Bfr
+.. section: Build
+
+Enables use of SSE2 instructions in Windows 32-bit build.
+
+..
+
+.. bpo: 36210
+.. date: 2019-03-06-18-55-10
+.. nonce: fup9H2
+.. section: Build
+
+Update optional extension module detection for AIX. ossaudiodev and spwd are
+not applicable for AIX, and are no longer reported as missing. 3rd-party
+packaging of ncurses (with ASIS support) conflicts with officially supported
+AIX curses library, so configure AIX to use libcurses.a. However, skip
+trying to build _curses_panel.
+
+patch by M Felt
+
+..
+
+.. bpo: 38589
+.. date: 2019-10-28-10-48-16
+.. nonce: V69Q1a
+.. section: Windows
+
+Fixes HTML Help shortcut when Windows is not installed to C drive
+
+..
+
+.. bpo: 38453
+.. date: 2019-10-28-10-32-43
+.. nonce: NwwatW
+.. section: Windows
+
+Ensure ntpath.realpath() correctly resolves relative paths.
+
+..
+
+.. bpo: 38519
+.. date: 2019-10-28-05-01-29
+.. nonce: dCkY66
+.. section: Windows
+
+Restores the internal C headers that were missing from the nuget.org and
+Microsoft Store packages.
+
+..
+
+.. bpo: 38492
+.. date: 2019-10-16-09-49-09
+.. nonce: Te1LxC
+.. section: Windows
+
+Remove ``pythonw.exe`` dependency on the Microsoft C++ runtime.
+
+..
+
+.. bpo: 38344
+.. date: 2019-10-05-05-50-58
+.. nonce: scr2LO
+.. section: Windows
+
+Fix error message in activate.bat
+
+..
+
+.. bpo: 38359
+.. date: 2019-10-03-08-04-14
+.. nonce: wzwsl_
+.. section: Windows
+
+Ensures ``pyw.exe`` launcher reads correct registry key.
+
+..
+
+.. bpo: 38355
+.. date: 2019-10-02-15-38-49
+.. nonce: n3AWX6
+.. section: Windows
+
+Fixes ``ntpath.realpath`` failing on ``sys.executable``.
+
+..
+
+.. bpo: 38117
+.. date: 2019-09-16-14-07-11
+.. nonce: hJVf0C
+.. section: Windows
+
+Update bundled OpenSSL to 1.1.1d
+
+..
+
+.. bpo: 38092
+.. date: 2019-09-13-14-11-42
+.. nonce: x31ehI
+.. section: Windows
+
+Reduce overhead when using multiprocessing in a Windows virtual environment.
+
+..
+
+.. bpo: 38133
+.. date: 2019-09-12-12-05-55
+.. nonce: yFeRGS
+.. section: Windows
+
+Allow py.exe launcher to locate installations from the Microsoft Store and
+improve display of active virtual environments.
+
+..
+
+.. bpo: 38114
+.. date: 2019-09-11-15-24-04
+.. nonce: cc0E5E
+.. section: Windows
+
+The ``pip.ini`` is no longer included in the Nuget package.
+
+..
+
+.. bpo: 32592
+.. date: 2019-09-11-14-51-56
+.. nonce: jvQMD9
+.. section: Windows
+
+Set Windows 8 as the minimum required version for API support
+
+..
+
+.. bpo: 36634
+.. date: 2019-09-11-14-42-04
+.. nonce: 8Un8ih
+.. section: Windows
+
+:func:`os.cpu_count` now returns active processors rather than maximum
+processors.
+
+..
+
+.. bpo: 36634
+.. date: 2019-09-11-12-34-31
+.. nonce: xLaGgb
+.. section: Windows
+
+venv activate.bat now works when the existing variables contain double quote
+characters.
+
+..
+
+.. bpo: 38081
+.. date: 2019-09-11-10-22-01
+.. nonce: 8JhzjD
+.. section: Windows
+
+Prevent error calling :func:`os.path.realpath` on ``'NUL'``.
+
+..
+
+.. bpo: 38087
+.. date: 2019-09-10-14-21-40
+.. nonce: --eIib
+.. section: Windows
+
+Fix case sensitivity in test_pathlib and test_ntpath.
+
+..
+
+.. bpo: 38088
+.. date: 2019-09-10-14-17-25
+.. nonce: FOvWSM
+.. section: Windows
+
+Fixes distutils not finding vcruntime140.dll with only the v142 toolset
+installed.
+
+..
+
+.. bpo: 37283
+.. date: 2019-09-09-12-22-23
+.. nonce: 8NvOkU
+.. section: Windows
+
+Ensure command-line and unattend.xml setting override previously detected
+states in Windows installer.
+
+..
+
+.. bpo: 38030
+.. date: 2019-09-04-14-01-08
+.. nonce: _USdtk
+.. section: Windows
+
+Fixes :func:`os.stat` failing for block devices on Windows
+
+..
+
+.. bpo: 38020
+.. date: 2019-09-03-11-47-37
+.. nonce: xFZ2j0
+.. section: Windows
+
+Fixes potential crash when calling :func:`os.readlink` (or indirectly
+through :func:`~os.path.realpath`) on a file that is not a supported link.
+
+..
+
+.. bpo: 37705
+.. date: 2019-08-30-15-15-22
+.. nonce: 2o4NWW
+.. section: Windows
+
+Improve the implementation of ``winerror_to_errno()``.
+
+..
+
+.. bpo: 37549
+.. date: 2019-08-22-09-04-44
+.. nonce: TpKI3M
+.. section: Windows
+
+:func:`os.dup` no longer fails for standard streams on Windows 7.
+
+..
+
+.. bpo: 1311
+.. date: 2019-08-21-12-58-18
+.. nonce: BoW1wU
+.. section: Windows
+
+The ``nul`` file on Windows now returns True from :func:`~os.path.exists`
+and a valid result from :func:`os.stat` with ``S_IFCHR`` set.
+
+..
+
+.. bpo: 9949
+.. date: 2019-08-14-13-40-15
+.. nonce: zW45Ks
+.. section: Windows
+
+Enable support for following symlinks in :func:`os.realpath`.
+
+..
+
+.. bpo: 37834
+.. date: 2019-08-12-12-00-24
+.. nonce: VB2QVj
+.. section: Windows
+
+Treat all name surrogate reparse points on Windows in :func:`os.lstat` and
+other reparse points as regular files in :func:`os.stat`.
+
+..
+
+.. bpo: 36266
+.. date: 2019-08-08-18-05-27
+.. nonce: x4eZU3
+.. section: Windows
+
+Add the module name in the formatted error message when DLL load fail
+happens during module import in ``_PyImport_FindSharedFuncptrWindows()``.
+Patch by Srinivas Nyayapati.
+
+..
+
+.. bpo: 25172
+.. date: 2019-08-06-18-09-18
+.. nonce: Akreij
+.. section: Windows
+
+Trying to import the :mod:`crypt` module on Windows will result in an
+:exc:`ImportError` with a message explaining that the module isn't supported
+on Windows. On other platforms, if the underlying ``_crypt`` module is not
+available, the ImportError will include a message explaining the problem.
+
+..
+
+.. bpo: 37778
+.. date: 2019-08-06-13-54-12
+.. nonce: AY1XhH
+.. section: Windows
+
+Fixes the icons used for file associations to the Microsoft Store package.
+
+..
+
+.. bpo: 37734
+.. date: 2019-08-06-09-35-12
+.. nonce: EoJ9Nh
+.. section: Windows
+
+Fix use of registry values to launch Python from Microsoft Store app.
+
+..
+
+.. bpo: 37702
+.. date: 2019-07-29-16-49-31
+.. nonce: Lj2f5e
+.. section: Windows
+
+Fix memory leak on Windows in creating an SSLContext object or running
+urllib.request.urlopen('https://...').
+
+..
+
+.. bpo: 37672
+.. date: 2019-07-24-14-36-28
+.. nonce: uKEVHN
+.. section: Windows
+
+Switch Windows Store package's pip to use bundled :file:`pip.ini` instead of
+:envvar:`PIP_USER` variable.
+
+..
+
+.. bpo: 10945
+.. date: 2019-07-01-12-38-48
+.. nonce: s0YBHG
+.. section: Windows
+
+Officially drop support for creating bdist_wininst installers on non-Windows
+systems.
+
+..
+
+.. bpo: 37445
+.. date: 2019-06-28-18-10-29
+.. nonce: LsdYO6
+.. section: Windows
+
+Include the ``FORMAT_MESSAGE_IGNORE_INSERTS`` flag in ``FormatMessageW()``
+calls.
+
+..
+
+.. bpo: 37369
+.. date: 2019-06-28-09-44-08
+.. nonce: 1iVpxq
+.. section: Windows
+
+Fixes path for :data:`sys.executable` when running from the Microsoft Store.
+
+..
+
+.. bpo: 37380
+.. date: 2019-06-25-04-15-22
+.. nonce: tPxjuz
+.. section: Windows
+
+Don't collect unfinished processes with ``subprocess._active`` on Windows to
+cleanup later. Patch by Ruslan Kuprieiev.
+
+..
+
+.. bpo: 37351
+.. date: 2019-06-20-12-50-32
+.. nonce: asTnVW
+.. section: Windows
+
+Removes libpython38.a from standard Windows distribution.
+
+..
+
+.. bpo: 35360
+.. date: 2019-06-18-09-05-08
+.. nonce: tdqSmo
+.. section: Windows
+
+Update Windows builds to use SQLite 3.28.0.
+
+..
+
+.. bpo: 37267
+.. date: 2019-06-13-04-15-51
+.. nonce: Ygo5ef
+.. section: Windows
+
+On Windows, :func:`os.dup` no longer creates an inheritable fd when handling
+a character file.
+
+..
+
+.. bpo: 36779
+.. date: 2019-06-11-15-41-34
+.. nonce: 0TMw6f
+.. section: Windows
+
+Ensure ``time.tzname`` is correct on Windows when the active code page is
+set to CP_UTF7 or CP_UTF8.
+
+..
+
+.. bpo: 32587
+.. date: 2019-05-10-15-25-44
+.. nonce: -0g2O3
+.. section: Windows
+
+Make :data:`winreg.REG_MULTI_SZ` support zero-length strings.
+
+..
+
+.. bpo: 28269
+.. date: 2019-05-05-05-23-34
+.. nonce: -MOHI7
+.. section: Windows
+
+Replace use of :c:func:`strcasecmp` for the system function
+:c:func:`_stricmp`. Patch by Minmin Gong.
+
+..
+
+.. bpo: 36590
+.. date: 2019-04-10-21-13-26
+.. nonce: ZTaKcu
+.. section: Windows
+
+Add native Bluetooth RFCOMM support to socket module.
+
+..
+
+.. bpo: 38117
+.. date: 2019-09-15-21-29-13
+.. nonce: ZLsoAZ
+.. section: macOS
+
+Updated OpenSSL to 1.1.1d in macOS installer.
+
+..
+
+.. bpo: 38089
+.. date: 2019-09-10-14-24-35
+.. nonce: eedgyD
+.. section: macOS
+
+Move Azure Pipelines to latest VM versions and make macOS tests optional
+
+..
+
+.. bpo: 18049
+.. date: 2019-07-13-15-58-18
+.. nonce: MklhQQ
+.. section: macOS
+
+Increase the default stack size of threads from 5MB to 16MB on macOS, to
+match the stack size of the main thread. This avoids crashes on deep
+recursion in threads.
+
+..
+
+.. bpo: 34602
+.. date: 2019-07-02-01-06-47
+.. nonce: 10d4wl
+.. section: macOS
+
+Avoid test suite failures on macOS by no longer calling resource.setrlimit
+to increase the process stack size limit at runtime. The runtime change is
+no longer needed since the interpreter is being built with a larger default
+stack size.
+
+..
+
+.. bpo: 35360
+.. date: 2019-06-18-08-58-30
+.. nonce: -CWbfy
+.. section: macOS
+
+Update macOS installer to use SQLite 3.28.0.
+
+..
+
+.. bpo: 34631
+.. date: 2019-06-18-00-30-40
+.. nonce: vSifcv
+.. section: macOS
+
+Updated OpenSSL to 1.1.1c in macOS installer.
+
+..
+
+.. bpo: 26353
+.. date: 2019-11-09-23-55-59
+.. nonce: duYZiF
+.. section: IDLE
+
+Stop adding newline when saving an IDLE shell window.
+
+..
+
+.. bpo: 4630
+.. date: 2019-10-28-04-48-03
+.. nonce: upgjiV
+.. section: IDLE
+
+Add an option to toggle IDLE's cursor blink for shell, editor, and output
+windows. See Settings, General, Window Preferences, Cursor Blink. Patch by
+Zackery Spytz.
+
+..
+
+.. bpo: 38598
+.. date: 2019-10-26-18-16-24
+.. nonce: 6kH9FY
+.. section: IDLE
+
+Do not try to compile IDLE shell or output windows
+
+..
+
+.. bpo: 36698
+.. date: 2019-10-04-18-03-09
+.. nonce: BKcmom
+.. section: IDLE
+
+IDLE no longer fails when write non-encodable characters to stderr. It now
+escapes them with a backslash, as the regular Python interpreter. Added the
+``errors`` field to the standard streams.
+
+..
+
+.. bpo: 35379
+.. date: 2019-09-17-01-28-56
+.. nonce: yAECDr
+.. section: IDLE
+
+When exiting IDLE, catch any AttributeError. One happens when
+EditorWindow.close is called twice. Printing a traceback, when IDLE is run
+from a terminal, is useless and annoying.
+
+..
+
+.. bpo: 38183
+.. date: 2019-09-16-15-04-29
+.. nonce: eudCN1
+.. section: IDLE
+
+To avoid problems, test_idle ignores the user config directory. It no longer
+tries to create or access .idlerc or any files within. Users must run IDLE
+to discover problems with saving settings.
+
+..
+
+.. bpo: 38077
+.. date: 2019-09-09-22-08-36
+.. nonce: Mzpfe2
+.. section: IDLE
+
+IDLE no longer adds 'argv' to the user namespace when initializing it. This
+bug only affected 3.7.4 and 3.8.0b2 to 3.8.0b4.
+
+..
+
+.. bpo: 38041
+.. date: 2019-09-05-23-12-13
+.. nonce: nxmGGK
+.. section: IDLE
+
+Shell restart lines now fill the window width, always start with '=', and
+avoid wrapping unnecessarily. The line will still wrap if the included file
+name is long relative to the width.
+
+..
+
+.. bpo: 35771
+.. date: 2019-09-01-10-22-55
+.. nonce: tdbmbP
+.. section: IDLE
+
+To avoid occasional spurious test_idle failures on slower machines, increase
+the ``hover_delay`` in test_tooltip.
+
+..
+
+.. bpo: 37824
+.. date: 2019-08-26-00-41-53
+.. nonce: YY5jAI
+.. section: IDLE
+
+Properly handle user input warnings in IDLE shell. Cease turning
+SyntaxWarnings into SyntaxErrors.
+
+..
+
+.. bpo: 37929
+.. date: 2019-08-24-22-00-33
+.. nonce: jb7523
+.. section: IDLE
+
+IDLE Settings dialog now closes properly when there is no shell window.
+
+..
+
+.. bpo: 37902
+.. date: 2019-08-21-16-02-49
+.. nonce: _R_adE
+.. section: IDLE
+
+Add mousewheel scrolling for IDLE module, path, and stack browsers. Patch by
+George Zhang.
+
+..
+
+.. bpo: 37849
+.. date: 2019-08-14-09-43-15
+.. nonce: -bcYF3
+.. section: IDLE
+
+Fixed completions list appearing too high or low when shown above the
+current line.
+
+..
+
+.. bpo: 36419
+.. date: 2019-08-04-17-10-01
+.. nonce: TJZqOc
+.. section: IDLE
+
+Refactor IDLE autocomplete and improve testing.
+
+..
+
+.. bpo: 37748
+.. date: 2019-08-04-15-27-50
+.. nonce: 0vf6pg
+.. section: IDLE
+
+Reorder the Run menu. Put the most common choice, Run Module, at the top.
+
+..
+
+.. bpo: 37692
+.. date: 2019-07-27-15-14-20
+.. nonce: TRHGjD
+.. section: IDLE
+
+Improve highlight config sample with example shell interaction and better
+labels for shell elements.
+
+..
+
+.. bpo: 37628
+.. date: 2019-07-26-17-51-13
+.. nonce: kX4AUF
+.. section: IDLE
+
+Settings dialog no longer expands with font size.
+
+..
+
+.. bpo: 37627
+.. date: 2019-07-20-23-33-53
+.. nonce: dQhUNB
+.. section: IDLE
+
+Initialize the Customize Run dialog with the command line arguments most
+recently entered before. The user can optionally edit before submitting
+them.
+
+..
+
+.. bpo: 33610
+.. date: 2019-07-18-10-11-36
+.. nonce: xYqMLg
+.. section: IDLE
+
+Fix code context not showing the correct context when first toggled on.
+
+..
+
+.. bpo: 37530
+.. date: 2019-07-11-00-05-31
+.. nonce: AuyCyD
+.. section: IDLE
+
+Optimize code context to reduce unneeded background activity. Font and
+highlight changes now occur along with text changes instead of after a
+random delay.
+
+..
+
+.. bpo: 27452
+.. date: 2019-07-03-22-47-44
+.. nonce: nePPLi
+.. section: IDLE
+
+Cleanup ``config.py`` by inlining ``RemoveFile`` and simplifying the
+handling of ``file`` in ``CreateConfigHandlers``.
+
+..
+
+.. bpo: 37325
+.. date: 2019-06-18-16-40-05
+.. nonce: GssOf1
+.. section: IDLE
+
+Fix tab focus traversal order for help source and custom run dialogs.
+
+..
+
+.. bpo: 37321
+.. date: 2019-06-17-16-35-30
+.. nonce: zVTTGS
+.. section: IDLE
+
+Both subprocess connection error messages now refer to the 'Startup failure'
+section of the IDLE doc.
+
+..
+
+.. bpo: 17535
+.. date: 2019-06-13-01-07-20
+.. nonce: K8i2St
+.. section: IDLE
+
+Add optional line numbers for IDLE editor windows. Windows open without
+line numbers unless set otherwise in the General tab of the configuration
+dialog.
+
+..
+
+.. bpo: 26806
+.. date: 2019-06-10-22-48-50
+.. nonce: Zltkum
+.. section: IDLE
+
+To compensate for stack frames added by IDLE and avoid possible problems
+with low recursion limits, add 30 to limits in the user code execution
+process. Subtract 30 when reporting recursion limits to make this addition
+mostly transparent.
+
+..
+
+.. bpo: 37177
+.. date: 2019-06-07-00-17-41
+.. nonce: voU6pQ
+.. section: IDLE
+
+Properly 'attach' search dialogs to their main window so that they behave
+like other dialogs and do not get hidden behind their main window.
+
+..
+
+.. bpo: 37039
+.. date: 2019-06-04-23-27-33
+.. nonce: FN_fBf
+.. section: IDLE
+
+Adjust "Zoom Height" to individual screens by momentarily maximizing the
+window on first use with a particular screen. Changing screen settings may
+invalidate the saved height. While a window is maximized, "Zoom Height" has
+no effect.
+
+..
+
+.. bpo: 35763
+.. date: 2019-06-04-20-36-24
+.. nonce: 7XdoWz
+.. section: IDLE
+
+Make calltip reminder about '/' meaning positional-only less obtrusive by
+only adding it when there is room on the first line.
+
+..
+
+.. bpo: 5680
+.. date: 2019-06-03-00-39-29
+.. nonce: VCQfOO
+.. section: IDLE
+
+Add 'Run... Customized' to the Run menu to run a module with customized
+settings. Any 'command line arguments' entered are added to sys.argv. One
+can suppress the normal Shell main module restart.
+
+..
+
+.. bpo: 36390
+.. date: 2019-03-21-08-35-00
+.. nonce: OdDCGk
+.. section: IDLE
+
+Gather Format menu functions into format.py. Combine paragraph.py,
+rstrip.py, and format methods from editor.py.
+
+..
+
+.. bpo: 38118
+.. date: 2019-10-08-15-07-52
+.. nonce: pIZD6H
+.. section: Tools/Demos
+
+Update Valgrind suppression file to ignore a false alarm in
+:c:func:`PyUnicode_Decode` when using GCC builtin strcmp().
+
+..
+
+.. bpo: 38347
+.. date: 2019-10-02-09-48-42
+.. nonce: 2Tq5D1
+.. section: Tools/Demos
+
+pathfix.py: Assume all files that end on '.py' are Python scripts when
+working recursively.
+
+..
+
+.. bpo: 37803
+.. date: 2019-09-12-16-15-55
+.. nonce: chEizy
+.. section: Tools/Demos
+
+pdb's ``--help`` and ``--version`` long options now work.
+
+..
+
+.. bpo: 37942
+.. date: 2019-08-24-12-11-30
+.. nonce: 7H8N9a
+.. section: Tools/Demos
+
+Improve ArgumentClinic converter for floats.
+
+..
+
+.. bpo: 37704
+.. date: 2019-07-29-13-59-19
+.. nonce: xxGUz_
+.. section: Tools/Demos
+
+Remove ``Tools/scripts/h2py.py``: use cffi to access a C API in Python.
+
+..
+
+.. bpo: 37675
+.. date: 2019-07-24-16-20-54
+.. nonce: 951Cvf
+.. section: Tools/Demos
+
+2to3 now works when run from a zipped standard library.
+
+..
+
+.. bpo: 37034
+.. date: 2019-05-27-16-13-08
+.. nonce: zbTgy8
+.. section: Tools/Demos
+
+Argument Clinic now uses the argument name on errors with keyword-only
+argument instead of their position. Patch contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 37064
+.. date: 2019-05-27-15-26-12
+.. nonce: k_SPW2
+.. section: Tools/Demos
+
+Add option -k to pathscript.py script: preserve shebang flags. Add option -a
+to pathscript.py script: add flags.
+
+..
+
+.. bpo: 37633
+.. date: 2019-11-04-21-10-47
+.. nonce: oOGVdo
+.. section: C API
+
+Re-export some function compatibility wrappers for macros in ``pythonrun.h``.
+
+..
+
+.. bpo: 38644
+.. date: 2019-11-04-17-59-46
+.. nonce: euO_RR
+.. section: C API
+
+Provide :c:func:`Py_EnterRecursiveCall` and :c:func:`Py_LeaveRecursiveCall`
+as regular functions for the limited API. Previously, there were defined as
+macros, but these macros didn't work with the limited API which cannot
+access ``PyThreadState.recursion_depth`` field. Remove
+``_Py_CheckRecursionLimit`` from the stable ABI.
+
+..
+
+.. bpo: 38650
+.. date: 2019-10-30-22-03-03
+.. nonce: 0pi8zt
+.. section: C API
+
+The global variable :c:data:`PyStructSequence_UnnamedField` is now a
+constant and refers to a constant string.
+
+..
+
+.. bpo: 38540
+.. date: 2019-10-21-09-24-03
+.. nonce: 314N_T
+.. section: C API
+
+Fixed possible leak in :c:func:`PyArg_Parse` and similar functions for
+format units ``"es#"`` and ``"et#"`` when the macro
+:c:macro:`PY_SSIZE_T_CLEAN` is not defined.
+
+..
+
+.. bpo: 38395
+.. date: 2019-10-08-01-23-24
+.. nonce: MJ6Ey9
+.. section: C API
+
+Fix a crash in :class:`weakref.proxy` objects due to incorrect lifetime
+management when calling some associated methods that may delete the last
+reference to object being referenced by the proxy. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 36389
+.. date: 2019-10-07-17-15-09
+.. nonce: hFX_jD
+.. section: C API
+
+The ``_PyObject_CheckConsistency()`` function is now also available in
+release mode. For example, it can be used to debug a crash in the
+``visit_decref()`` function of the GC.
+
+..
+
+.. bpo: 38266
+.. date: 2019-10-03-12-53-53
+.. nonce: 0FIC1q
+.. section: C API
+
+Revert the removal of PyThreadState_DeleteCurrent() with documentation.
+
+..
+
+.. bpo: 38303
+.. date: 2019-09-30-16-53-30
+.. nonce: YoIs0M
+.. section: C API
+
+Update audioop extension module to use the stable ABI (PEP-384). Patch by
+Tyler Kieft.
+
+..
+
+.. bpo: 38234
+.. date: 2019-09-24-17-09-48
+.. nonce: d0bhEA
+.. section: C API
+
+:c:func:`Py_SetPath` now sets :data:`sys.executable` to the program full
+path (:c:func:`Py_GetProgramFullPath`) rather than to the program name
+(:c:func:`Py_GetProgramName`).
+
+..
+
+.. bpo: 38234
+.. date: 2019-09-20-17-22-41
+.. nonce: ZbquVK
+.. section: C API
+
+Python ignored arguments passed to :c:func:`Py_SetPath`,
+:c:func:`Py_SetPythonHome` and :c:func:`Py_SetProgramName`: fix Python
+initialization to use specified arguments.
+
+..
+
+.. bpo: 38205
+.. date: 2019-09-19-18-26-29
+.. nonce: Db1OJL
+.. section: C API
+
+The :c:func:`Py_UNREACHABLE` macro now calls :c:func:`Py_FatalError`.
+
+..
+
+.. bpo: 38140
+.. date: 2019-09-13-01-24-47
+.. nonce: y59qaO
+.. section: C API
+
+Make dict and weakref offsets opaque for C heap types by passing the offsets
+through PyMemberDef
+
+..
+
+.. bpo: 15088
+.. date: 2019-09-05-14-17-21
+.. nonce: plt8Em
+.. section: C API
+
+The C function ``PyGen_NeedsFinalizing`` has been removed. It was not
+documented, tested or used anywhere within CPython after the implementation
+of :pep:`442`. Patch by Joannah Nanjekye. (Patch by Joannah Nanjekye)
+
+..
+
+.. bpo: 36763
+.. date: 2019-08-23-18-45-11
+.. nonce: q3Kh8Z
+.. section: C API
+
+Options added by ``PySys_AddXOption()`` are now handled the same way than
+``PyConfig.xoptions`` and command line ``-X`` options.
+
+..
+
+.. bpo: 37926
+.. date: 2019-08-23-11-35-55
+.. nonce: hnI5IQ
+.. section: C API
+
+Fix a crash in ``PySys_SetArgvEx(0, NULL, 0)``.
+
+..
+
+.. bpo: 37879
+.. date: 2019-08-17-13-50-21
+.. nonce: CZeUem
+.. section: C API
+
+Fix subtype_dealloc to suppress the type decref when the base type is a C
+heap type
+
+..
+
+.. bpo: 37645
+.. date: 2019-07-21-21-08-47
+.. nonce: 4DcUaI
+.. section: C API
+
+Add :c:func:`_PyObject_FunctionStr` to get a user-friendly string
+representation of a function-like object. Patch by Jeroen Demeyer.
+
+..
+
+.. bpo: 29548
+.. date: 2019-07-17-09-50-50
+.. nonce: 5wIptQ
+.. section: C API
+
+The functions ``PyEval_CallObject``, ``PyEval_CallFunction``,
+``PyEval_CallMethod`` and ``PyEval_CallObjectWithKeywords`` are deprecated.
+Use :c:func:`PyObject_Call` and its variants instead.
+
+..
+
+.. bpo: 37151
+.. date: 2019-07-16-11-02-00
+.. nonce: YKfuNA
+.. section: C API
+
+``PyCFunction_Call`` is now a deprecated alias of :c:func:`PyObject_Call`.
+
+..
+
+.. bpo: 37540
+.. date: 2019-07-10-12-27-28
+.. nonce: E8Z773
+.. section: C API
+
+The vectorcall protocol now requires that the caller passes only strings as
+keyword names.
+
+..
+
+.. bpo: 37207
+.. date: 2019-07-07-10-37-07
+.. nonce: SlVNky
+.. section: C API
+
+The vectorcall protocol is now enabled for ``type`` objects: set
+``tp_vectorcall`` to a vectorcall function to be used instead of ``tp_new``
+and ``tp_init`` when calling the class itself.
+
+..
+
+.. bpo: 21120
+.. date: 2019-07-06-23-56-47
+.. nonce: lXHqlT
+.. section: C API
+
+Exclude Python-ast.h, ast.h and asdl.h from the limited API.
+
+..
+
+.. bpo: 37483
+.. date: 2019-07-02-15-42-37
+.. nonce: vftT4f
+.. section: C API
+
+Add new function ``_PyObject_CallOneArg`` for calling an object with one
+positional argument.
+
+..
+
+.. bpo: 36763
+.. date: 2019-06-28-15-49-16
+.. nonce: zrmgki
+.. section: C API
+
+Add :func:`PyConfig_SetWideStringList` function.
+
+..
+
+.. bpo: 37337
+.. date: 2019-06-19-12-06-31
+.. nonce: gXIGyU
+.. section: C API
+
+Add fast functions for calling methods:
+:c:func:`_PyObject_VectorcallMethod`, :c:func:`_PyObject_CallMethodNoArgs`
+and :c:func:`_PyObject_CallMethodOneArg`.
+
+..
+
+.. bpo: 28805
+.. date: 2019-06-14-14-03-51
+.. nonce: qZC0N_
+.. section: C API
+
+The :const:`METH_FASTCALL` calling convention has been documented.
+
+..
+
+.. bpo: 37221
+.. date: 2019-06-11-02-50-38
+.. nonce: 4tClQT
+.. section: C API
+
+The new function :c:func:`PyCode_NewWithPosOnlyArgs` allows to create code
+objects like :c:func:`PyCode_New`, but with an extra *posonlyargcount*
+parameter for indicating the number of positonal-only arguments.
+
+..
+
+.. bpo: 37215
+.. date: 2019-06-10-15-32-34
+.. nonce: yzoNyU
+.. section: C API
+
+Fix dtrace issue introduce by bpo-36842
+
+..
+
+.. bpo: 37194
+.. date: 2019-06-07-14-03-52
+.. nonce: uck7MD
+.. section: C API
+
+Add a new public :c:func:`PyObject_CallNoArgs` function to the C API: call a
+callable Python object without any arguments. It is the most efficient way
+to call a callback without any argument. On x86-64, for example,
+``PyObject_CallFunctionObjArgs(func, NULL)`` allocates 960 bytes on the
+stack per call, whereas ``PyObject_CallNoArgs(func)`` only allocates 624
+bytes per call.
+
+..
+
+.. bpo: 37170
+.. date: 2019-06-06-08-47-04
+.. nonce: hO_fpM
+.. section: C API
+
+Fix the cast on error in :c:func:`PyLong_AsUnsignedLongLongMask()`.
+
+..
+
+.. bpo: 35381
+.. date: 2019-01-18-17-05-26
+.. nonce: 9CbeW3
+.. section: C API
+
+Convert posixmodule.c statically allocated types ``DirEntryType`` and
+``ScandirIteratorType`` to heap-allocated types.
+
+..
+
+.. bpo: 34331
+.. date: 2018-08-04-00-59-44
+.. nonce: iaUkmU
+.. section: C API
+
+Use singular/plural noun in error message when instantiating an abstract
+class with non-overriden abstract method(s).
--- /dev/null
+.. bpo: 38945
+.. date: 2019-12-01-22-44-40
+.. nonce: ztmNXc
+.. release date: 2019-12-18
+.. section: Security
+
+Newline characters have been escaped when performing uu encoding to prevent
+them from overflowing into to content section of the encoded file. This
+prevents malicious or accidental modification of data during the decoding
+process.
+
+..
+
+.. bpo: 37228
+.. date: 2019-11-21-21-36-54
+.. nonce: yBZnFG
+.. section: Security
+
+Due to significant security concerns, the *reuse_address* parameter of
+:meth:`asyncio.loop.create_datagram_endpoint` is no longer supported. This
+is because of the behavior of ``SO_REUSEADDR`` in UDP. For more details, see
+the documentation for ``loop.create_datagram_endpoint()``. (Contributed by
+Kyle Stanley, Antoine Pitrou, and Yury Selivanov in :issue:`37228`.)
+
+..
+
+.. bpo: 38804
+.. date: 2019-11-15-00-54-42
+.. nonce: vjbM8V
+.. section: Security
+
+Fixes a ReDoS vulnerability in :mod:`http.cookiejar`. Patch by Ben Caller.
+
+..
+
+.. bpo: 39028
+.. date: 2019-12-17-23-20-51
+.. nonce: SND4TB
+.. section: Core and Builtins
+
+Slightly improve the speed of keyword argument parsing with many kwargs by
+strengthening the assumption that kwargs are interned strings.
+
+..
+
+.. bpo: 39080
+.. date: 2019-12-17-21-45-36
+.. nonce: OrxEVS
+.. section: Core and Builtins
+
+Fix the value of *end_col_offset* for Starred Expression AST nodes when they
+are among the elements in the *args* attribute of Call AST nodes.
+
+..
+
+.. bpo: 39031
+.. date: 2019-12-12-21-05-43
+.. nonce: imlCYZ
+.. section: Core and Builtins
+
+When parsing an "elif" node, lineno and col_offset of the node now point to
+the "elif" keyword and not to its condition, making it consistent with the
+"if" node. Patch by Lysandros Nikolaou.
+
+..
+
+.. bpo: 20443
+.. date: 2019-12-09-17-05-53
+.. nonce: 8OyT5P
+.. section: Core and Builtins
+
+In Python 3.9.0a1, sys.argv[0] was made an absolute path if a filename was
+specified on the command line. Revert this change, since most users expect
+sys.argv to be unmodified.
+
+..
+
+.. bpo: 39008
+.. date: 2019-12-09-10-38-51
+.. nonce: Rrp6f1
+.. section: Core and Builtins
+
+:c:func:`PySys_Audit` now requires ``Py_ssize_t`` to be used for size
+arguments in the format string, regardless of whether ``PY_SSIZE_T_CLEAN``
+was defined at include time.
+
+..
+
+.. bpo: 38673
+.. date: 2019-12-01-00-17-44
+.. nonce: K_Tze-
+.. section: Core and Builtins
+
+In REPL mode, don't switch to PS2 if the line starts with comment or
+whitespace. Based on work by Batuhan Taşkaya.
+
+..
+
+.. bpo: 38922
+.. date: 2019-11-26-12-20-34
+.. nonce: i6ja-i
+.. section: Core and Builtins
+
+Calling ``replace`` on a code object now raises the ``code.__new__`` audit
+event.
+
+..
+
+.. bpo: 38920
+.. date: 2019-11-26-09-16-47
+.. nonce: Vx__sT
+.. section: Core and Builtins
+
+Add audit hooks for when :func:`sys.excepthook` and
+:func:`sys.unraisablehook` are invoked.
+
+..
+
+.. bpo: 38892
+.. date: 2019-11-22-22-18-50
+.. nonce: LS586s
+.. section: Core and Builtins
+
+Improve documentation for audit events table and functions.
+
+..
+
+.. bpo: 38852
+.. date: 2019-11-22-09-55-21
+.. nonce: y7oPEa
+.. section: Core and Builtins
+
+Set the thread stack size to 8 Mb for debug builds on android platforms.
+
+..
+
+.. bpo: 38858
+.. date: 2019-11-21-09-02-49
+.. nonce: bDLH04
+.. section: Core and Builtins
+
+Each Python subinterpreter now has its own "small integer singletons":
+numbers in [-5; 257] range. It is no longer possible to change the number of
+small integers at build time by overriding ``NSMALLNEGINTS`` and
+``NSMALLPOSINTS`` macros: macros should now be modified manually in
+``pycore_pystate.h`` header file.
+
+..
+
+.. bpo: 36854
+.. date: 2019-11-20-12-01-37
+.. nonce: Zga_md
+.. section: Core and Builtins
+
+The garbage collector state becomes per interpreter
+(``PyInterpreterState.gc``), rather than being global
+(``_PyRuntimeState.gc``).
+
+..
+
+.. bpo: 38835
+.. date: 2019-11-18-16-37-49
+.. nonce: -U4se1
+.. section: Core and Builtins
+
+The ``PyFPE_START_PROTECT()`` and ``PyFPE_END_PROTECT()`` macros are empty:
+they have been doing nothing for the last year, so stop using them.
+
+..
+
+.. bpo: 38328
+.. date: 2019-11-11-23-44-15
+.. nonce: IFrrjq
+.. section: Core and Builtins
+
+Sped up the creation time of constant :class:`list` and :class:`set`
+displays. Patch by Brandt Bucher.
+
+..
+
+.. bpo: 38707
+.. date: 2019-11-08-00-36-10
+.. nonce: SZL036
+.. section: Core and Builtins
+
+``MainThread.native_id`` is now correctly reset in child processes spawned
+using :class:`multiprocessing.Process`, instead of retaining the parent's
+value.
+
+..
+
+.. bpo: 38629
+.. date: 2019-10-29-17-11-15
+.. nonce: 3qinhF
+.. section: Core and Builtins
+
+Added ``__floor__`` and ``__ceil__`` methods to float object. Patch by
+Batuhan Taşkaya.
+
+..
+
+.. bpo: 27145
+.. date: 2019-09-06-16-40-12
+.. nonce: njuCXU
+.. section: Core and Builtins
+
+int + int and int - int operators can now return small integer singletons.
+Patch by hongweipeng.
+
+..
+
+.. bpo: 38021
+.. date: 2019-09-03-19-16-57
+.. nonce: KnUhdB
+.. section: Core and Builtins
+
+Provide a platform tag for AIX that is sufficient for PEP425 binary
+distribution identification. Patch by Michael Felt.
+
+..
+
+.. bpo: 35409
+.. date: 2019-07-13-18-01-13
+.. nonce: ozbcsR
+.. section: Core and Builtins
+
+Ignore GeneratorExit exceptions when throwing an exception into the aclose
+coroutine of an asynchronous generator.
+
+..
+
+.. bpo: 33387
+.. date: 2018-03-13-14-46-03
+.. nonce: v821M7
+.. section: Core and Builtins
+
+Removed WITH_CLEANUP_START, WITH_CLEANUP_FINISH, BEGIN_FINALLY, END_FINALLY,
+CALL_FINALLY and POP_FINALLY bytecodes. Replaced with RERAISE and
+WITH_EXCEPT_START bytecodes. The compiler now generates different code for
+exceptional and non-exceptional branches for 'with' and 'try-except'
+statements. For 'try-finally' statements the 'finally' block is replicated
+for each exit from the 'try' body.
+
+..
+
+.. bpo: 39033
+.. date: 2019-12-13-18-54-49
+.. nonce: cepuyD
+.. section: Library
+
+Fix :exc:`NameError` in :mod:`zipimport`. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 39022
+.. date: 2019-12-10-23-34-48
+.. nonce: QDtIxI
+.. section: Library
+
+Update importlib.metadata to include improvements from importlib_metadata
+1.3 including better serialization of EntryPoints and improved documentation
+for custom finders.
+
+..
+
+.. bpo: 39006
+.. date: 2019-12-09-14-40-09
+.. nonce: v4VsPg
+.. section: Library
+
+Fix asyncio when the ssl module is missing: only check for ssl.SSLSocket
+instance if the ssl module is available.
+
+..
+
+.. bpo: 38708
+.. date: 2019-12-07-22-25-39
+.. nonce: rZTUfk
+.. section: Library
+
+Fix a potential IndexError in email parser when parsing an empty msg-id.
+
+..
+
+.. bpo: 38698
+.. date: 2019-12-07-21-49-50
+.. nonce: HxoSym
+.. section: Library
+
+Add a new ``InvalidMessageID`` token to email parser to represent invalid
+Message-ID headers. Also, add defects when there is remaining value after
+parsing the header.
+
+..
+
+.. bpo: 38994
+.. date: 2019-12-07-18-58-44
+.. nonce: IJYhz_
+.. section: Library
+
+Implement ``__class_getitem__`` for ``os.PathLike``, ``pathlib.Path``.
+
+..
+
+.. bpo: 38979
+.. date: 2019-12-07-16-32-42
+.. nonce: q0sIHy
+.. section: Library
+
+Return class from ``ContextVar.__class_getitem__`` to simplify subclassing.
+
+..
+
+.. bpo: 38978
+.. date: 2019-12-07-13-40-52
+.. nonce: R3gHZI
+.. section: Library
+
+Implement ``__class_getitem__`` on asyncio objects (Future, Task, Queue).
+Patch by Batuhan Taskaya.
+
+..
+
+.. bpo: 38916
+.. date: 2019-12-06-18-47-56
+.. nonce: K-raU8
+.. section: Library
+
+:class:`array.array`: Remove ``tostring()`` and ``fromstring()`` methods.
+They were aliases to ``tobytes()`` and ``frombytes()``, deprecated since
+Python 3.2.
+
+..
+
+.. bpo: 38986
+.. date: 2019-12-06-15-11-42
+.. nonce: bg6iZt
+.. section: Library
+
+Make repr of C accelerated TaskWakeupMethWrapper the same as of pure Python
+version.
+
+..
+
+.. bpo: 38982
+.. date: 2019-12-05-18-21-26
+.. nonce: W3u-03
+.. section: Library
+
+Fix asyncio ``PidfdChildWatcher``: handle ``waitpid()`` error. If
+``waitpid()`` is called elsewhere, ``waitpid()`` call fails with
+:exc:`ChildProcessError`: use return code 255 in this case, and log a
+warning. It ensures that the pidfd file descriptor is closed if this error
+occurs.
+
+..
+
+.. bpo: 38529
+.. date: 2019-12-05-16-13-25
+.. nonce: yvQgx3
+.. section: Library
+
+Drop too noisy asyncio warning about deletion of a stream without explicit
+``.close()`` call.
+
+..
+
+.. bpo: 27413
+.. date: 2019-12-05-02-02-58
+.. nonce: 212Th2
+.. section: Library
+
+Added ability to pass through ``ensure_ascii`` options to json.dumps in the
+``json.tool`` command-line interface.
+
+..
+
+.. bpo: 38634
+.. date: 2019-12-04-15-56-28
+.. nonce: pq0ZWa
+.. section: Library
+
+The :mod:`readline` module now detects if Python is linked to libedit at
+runtime on all platforms. Previously, the check was only done on macOS.
+
+..
+
+.. bpo: 33684
+.. date: 2019-12-04-15-28-40
+.. nonce: QeSmQP
+.. section: Library
+
+Fix ``json.tool`` failed to read a JSON file with non-ASCII characters when
+locale encoding is not UTF-8.
+
+..
+
+.. bpo: 38698
+.. date: 2019-12-02-10-35-19
+.. nonce: WZnAPQ
+.. section: Library
+
+Prevent UnboundLocalError to pop up in parse_message_id.
+
+parse_message_id() was improperly using a token defined inside an exception
+handler, which was raising `UnboundLocalError` on parsing an invalid value.
+Patch by Claudiu Popa.
+
+..
+
+.. bpo: 38927
+.. date: 2019-11-27-17-47-00
+.. nonce: qT7xKY
+.. section: Library
+
+Use ``python -m pip`` instead of ``pip`` to upgrade dependencies in venv.
+
+..
+
+.. bpo: 26730
+.. date: 2019-11-27-16-30-02
+.. nonce: 56cdBn
+.. section: Library
+
+Fix ``SpooledTemporaryFile.rollover()`` might corrupt the file when it is in
+text mode. Patch by Serhiy Storchaka.
+
+..
+
+.. bpo: 38881
+.. date: 2019-11-22-20-03-46
+.. nonce: 7HV1Q0
+.. section: Library
+
+random.choices() now raises a ValueError when all the weights are zero.
+
+..
+
+.. bpo: 38876
+.. date: 2019-11-22-10-58-58
+.. nonce: qqy1Vp
+.. section: Library
+
+Raise pickle.UnpicklingError when loading an item from memo for invalid
+input.
+
+The previous code was raising a `KeyError` for both the Python and C
+implementation. This was caused by the specified index of an invalid input
+which did not exist in the memo structure, where the pickle stores what
+objects it has seen. The malformed input would have caused either a `BINGET`
+or `LONG_BINGET` load from the memo, leading to a `KeyError` as the
+determined index was bogus. Patch by Claudiu Popa
+
+..
+
+.. bpo: 38688
+.. date: 2019-11-22-10-45-03
+.. nonce: iKx23z
+.. section: Library
+
+Calling func:`shutil.copytree` to copy a directory tree from one directory
+to another subdirectory resulted in an endless loop and a RecursionError. A
+fix was added to consume an iterator and create the list of the entries to
+be copied, avoiding the recursion for newly created directories. Patch by
+Bruno P. Kinoshita.
+
+..
+
+.. bpo: 38863
+.. date: 2019-11-21-16-30-00
+.. nonce: RkdTjf
+.. section: Library
+
+Improve :func:`is_cgi` function in :mod:`http.server`, which enables
+processing the case that cgi directory is a child of another directory other
+than root.
+
+..
+
+.. bpo: 37838
+.. date: 2019-11-21-11-39-17
+.. nonce: lRFcEC
+.. section: Library
+
+:meth:`typing.get_type_hints` properly handles functions decorated with
+:meth:`functools.wraps`.
+
+..
+
+.. bpo: 38870
+.. date: 2019-11-20-22-43-48
+.. nonce: rLVZEv
+.. section: Library
+
+Expose :func:`ast.unparse` as a function of the :mod:`ast` module that can
+be used to unparse an :class:`ast.AST` object and produce a string with code
+that would produce an equivalent :class:`ast.AST` object when parsed. Patch
+by Pablo Galindo and Batuhan Taskaya.
+
+..
+
+.. bpo: 38859
+.. date: 2019-11-19-16-30-46
+.. nonce: AZUzL8
+.. section: Library
+
+AsyncMock now returns StopAsyncIteration on the exhaustion of a side_effects
+iterable. Since PEP-479 its Impossible to raise a StopIteration exception
+from a coroutine.
+
+..
+
+.. bpo: 38857
+.. date: 2019-11-19-16-28-25
+.. nonce: YPUkU9
+.. section: Library
+
+AsyncMock fix for return values that are awaitable types. This also covers
+side_effect iterable values that happened to be awaitable, and wraps
+callables that return an awaitable type. Before these awaitables were being
+awaited instead of being returned as is.
+
+..
+
+.. bpo: 38834
+.. date: 2019-11-18-17-08-23
+.. nonce: abcdef
+.. section: Library
+
+:class:`typing.TypedDict` subclasses now track which keys are optional using
+the ``__required_keys__`` and ``__optional_keys__`` attributes, to enable
+runtime validation by downstream projects. Patch by Zac Hatfield-Dodds.
+
+..
+
+.. bpo: 38821
+.. date: 2019-11-16-23-26-25
+.. nonce: -albNN
+.. section: Library
+
+Fix unhandled exceptions in :mod:`argparse` when internationalizing error
+messages for arguments with ``nargs`` set to special (non-integer) values.
+Patch by Federico Bond.
+
+..
+
+.. bpo: 38820
+.. date: 2019-11-16-16-09-07
+.. nonce: ivhUSV
+.. section: Library
+
+Make Python compatible with OpenSSL 3.0.0. :func:`ssl.SSLSocket.getpeercert`
+no longer returns IPv6 addresses with a trailing new line.
+
+..
+
+.. bpo: 38811
+.. date: 2019-11-15-18-06-04
+.. nonce: AmdQ6M
+.. section: Library
+
+Fix an unhandled exception in :mod:`pathlib` when :meth:`os.link` is
+missing. Patch by Toke Høiland-Jørgensen.
+
+..
+
+.. bpo: 38686
+.. date: 2019-11-06-15-26-15
+.. nonce: HNFBce
+.. section: Library
+
+Added support for multiple ``qop`` values in
+:class:`urllib.request.AbstractDigestAuthHandler`.
+
+..
+
+.. bpo: 38712
+.. date: 2019-11-05-21-10-12
+.. nonce: ezJ0TP
+.. section: Library
+
+Add the Linux-specific :func:`signal.pidfd_send_signal` function, which
+allows sending a signal to a process identified by a file descriptor rather
+than a pid.
+
+..
+
+.. bpo: 38348
+.. date: 2019-10-02-18-15-28
+.. nonce: _-5eq2
+.. section: Library
+
+Add ``-i`` and ``--indent`` (indentation level), and ``--no-type-comments``
+(type comments) command line options to ast parsing tool.
+
+..
+
+.. bpo: 37523
+.. date: 2019-10-02-02-55-37
+.. nonce: GguwJ6
+.. section: Library
+
+Change :class:`zipfile.ZipExtFile` to raise ``ValueError`` when trying to
+access the underlying file object after it has been closed. This new
+behavior is consistent with how accessing closed files is handled in other
+parts of Python.
+
+..
+
+.. bpo: 38045
+.. date: 2019-09-30-12-09-41
+.. nonce: VDRtd3
+.. section: Library
+
+Improve the performance of :func:`enum._decompose` in :mod:`enum`. Patch by
+hongweipeng.
+
+..
+
+.. bpo: 36820
+.. date: 2019-05-06-15-34-17
+.. nonce: Eh5mIB
+.. section: Library
+
+Break cycle generated when saving an exception in socket.py, codeop.py and
+dyld.py as they keep alive not only the exception but user objects through
+the ``__traceback__`` attribute. Patch by Mario Corchero.
+
+..
+
+.. bpo: 36406
+.. date: 2019-03-24-12-12-27
+.. nonce: mCEkOl
+.. section: Library
+
+Handle namespace packages in :mod:`doctest`. Patch by Karthikeyan
+Singaravelan.
+
+..
+
+.. bpo: 34776
+.. date: 2018-09-23-14-24-37
+.. nonce: 1SrQe3
+.. section: Library
+
+Fix dataclasses to support forward references in type annotations
+
+..
+
+.. bpo: 20928
+.. date: 2018-03-30-16-18-12
+.. nonce: ieXu6I
+.. section: Library
+
+ElementTree supports recursive XInclude processing. Patch by Stefan Behnel.
+
+..
+
+.. bpo: 29636
+.. date: 2018-02-22-11-24-33
+.. nonce: ogGRE2
+.. section: Library
+
+Add whitespace options for formatting JSON with the ``json.tool`` CLI. The
+following mutually exclusive options are now supported: ``--indent`` for
+setting the indent level in spaces; ``--tab`` for indenting with tabs;
+``--no-indent`` for suppressing newlines; and ``--compact`` for suppressing
+all whitespace. The default behavior remains the same as ``--indent=4``.
+
+..
+
+.. bpo: 38928
+.. date: 2019-11-27-17-51-27
+.. nonce: AfgvfO
+.. section: Documentation
+
+Correct when venv's ``upgrade_dependencies()`` and ``--upgrade-deps`` are
+added.
+
+..
+
+.. bpo: 38899
+.. date: 2019-11-22-15-57-29
+.. nonce: 4aYPW2
+.. section: Documentation
+
+Update documentation to state that to activate virtual environments under
+fish one should use `source`, not `.` as documented at
+https://fishshell.com/docs/current/commands.html#source.
+
+..
+
+.. bpo: 22377
+.. date: 2019-10-01-10-53-46
+.. nonce: 5ni-iC
+.. section: Documentation
+
+Improves documentation of the values that :meth:`datetime.datetime.strptime`
+accepts for ``%Z``. Patch by Karl Dubost.
+
+..
+
+.. bpo: 38546
+.. date: 2019-12-18-14-52-08
+.. nonce: 2kxNuM
+.. section: Tests
+
+Fix test_ressources_gced_in_workers() of test_concurrent_futures: explicitly
+stop the manager to prevent leaking a child process running in the
+background after the test completes.
+
+..
+
+.. bpo: 38546
+.. date: 2019-12-17-15-27-07
+.. nonce: 82JwN2
+.. section: Tests
+
+Multiprocessing and concurrent.futures tests now stop the resource tracker
+process when tests complete.
+
+..
+
+.. bpo: 38614
+.. date: 2019-12-10-14-26-23
+.. nonce: 89JpNh
+.. section: Tests
+
+Replace hardcoded timeout constants in tests with new :mod:`test.support`
+constants: :data:`~test.support.LOOPBACK_TIMEOUT`,
+:data:`~test.support.INTERNET_TIMEOUT`, :data:`~test.support.SHORT_TIMEOUT`
+and :data:`~test.support.LONG_TIMEOUT`. It becomes easier to adjust these
+four timeout constants for all tests at once, rather than having to adjust
+every single test file.
+
+..
+
+.. bpo: 38547
+.. date: 2019-12-09-11-32-34
+.. nonce: Juw54e
+.. section: Tests
+
+Fix test_pty: if the process is the session leader, closing the master file
+descriptor raises a SIGHUP signal: simply ignore SIGHUP when running the
+tests.
+
+..
+
+.. bpo: 38992
+.. date: 2019-12-08-15-11-06
+.. nonce: cVoHOZ
+.. section: Tests
+
+Fix a test for :func:`math.fsum` that was failing due to constant folding.
+
+..
+
+.. bpo: 38991
+.. date: 2019-12-07-00-52-09
+.. nonce: JE3_o-
+.. section: Tests
+
+:mod:`test.support`: :func:`~test.support.run_python_until_end`,
+:func:`~test.support.assert_python_ok` and
+:func:`~test.support.assert_python_failure` functions no longer strip
+whitespaces from stderr. Remove ``test.support.strip_python_stderr()``
+function.
+
+..
+
+.. bpo: 38965
+.. date: 2019-12-04-17-08-55
+.. nonce: yqax3m
+.. section: Tests
+
+Fix test_faulthandler on GCC 10. Use the "volatile" keyword in
+``faulthandler._stack_overflow()`` to prevent tail call optimization on any
+compiler, rather than relying on compiler specific pragma.
+
+..
+
+.. bpo: 38875
+.. date: 2019-11-21-09-11-06
+.. nonce: wSZJal
+.. section: Tests
+
+test_capi: trashcan tests now require the test "cpu" resource.
+
+..
+
+.. bpo: 38841
+.. date: 2019-11-20-16-08-19
+.. nonce: 5F5Lbw
+.. section: Tests
+
+Skip asyncio test_create_datagram_endpoint_existing_sock_unix on platforms
+lacking a functional bind() for named unix domain sockets.
+
+..
+
+.. bpo: 38692
+.. date: 2019-11-20-15-42-06
+.. nonce: aqAvyF
+.. section: Tests
+
+Skip the test_posix.test_pidfd_open() test if ``os.pidfd_open()`` fails with
+a :exc:`PermissionError`. This situation can happen in a Linux sandbox using
+a syscall whitelist which doesn't allow the ``pidfd_open()`` syscall yet.
+
+..
+
+.. bpo: 38839
+.. date: 2019-11-18-22-10-55
+.. nonce: di6tXv
+.. section: Tests
+
+Fix some unused functions in tests. Patch by Adam Johnson.
+
+..
+
+.. bpo: 38669
+.. date: 2019-11-04-02-54-16
+.. nonce: pazXZ8
+.. section: Tests
+
+Raise :exc:`TypeError` when passing target as a string with
+:meth:`unittest.mock.patch.object`.
+
+..
+
+.. bpo: 37957
+.. date: 2019-10-30-00-01-43
+.. nonce: X1r78F
+.. section: Tests
+
+test.regrtest now can receive a list of test patterns to ignore (using the
+-i/--ignore argument) or a file with a list of patterns to ignore (using the
+--ignore-file argument). Patch by Pablo Galindo.
+
+..
+
+.. bpo: 37404
+.. date: 2019-12-01-21-45-24
+.. nonce: cNsA7S
+.. section: Build
+
+:mod:`asyncio` now raises :exc:`TyperError` when calling incompatible
+methods with an :class:`ssl.SSLSocket` socket. Patch by Ido Michael.
+
+..
+
+.. bpo: 36500
+.. date: 2019-04-02-01-59-26
+.. nonce: fyG6_U
+.. section: Build
+
+Added an optional "regen" project to the Visual Studio solution that will
+regenerate all grammar, tokens, and opcodes.
+
+..
+
+.. bpo: 39007
+.. date: 2019-12-09-10-40-34
+.. nonce: vtarxo
+.. section: Windows
+
+Add auditing events to functions in :mod:`winreg`.
+
+..
+
+.. bpo: 33125
+.. date: 2019-11-14-08-57-50
+.. nonce: EN5MWS
+.. section: Windows
+
+Add support for building and releasing Windows ARM64 packages.
+
+..
+
+.. bpo: 37931
+.. date: 2019-08-23-12-14-34
+.. nonce: goYgQj
+.. section: macOS
+
+Fixed a crash on OSX dynamic builds that occurred when re-initializing the
+posix module after a Py_Finalize if the environment had changed since the
+previous `import posix`. Patch by Benoît Hudson.
+
+..
+
+.. bpo: 38944
+.. date: 2019-11-30-12-10-36
+.. nonce: _3xjKG
+.. section: IDLE
+
+Escape key now closes IDLE completion windows. Patch by Johnny Najera.
+
+..
+
+.. bpo: 38943
+.. date: 2019-11-29-23-44-11
+.. nonce: 8pUKKs
+.. section: IDLE
+
+Fix IDLE autocomplete windows not always appearing on some systems. Patch by
+Johnny Najera.
+
+..
+
+.. bpo: 38862
+.. date: 2019-11-23-21-50-57
+.. nonce: KQ9A0m
+.. section: IDLE
+
+'Strip Trailing Whitespace' on the Format menu removes extra newlines at the
+end of non-shell files.
+
+..
+
+.. bpo: 38636
+.. date: 2019-10-30-22-11-16
+.. nonce: hUhDeB
+.. section: IDLE
+
+Fix IDLE Format menu tab toggle and file indent width. These functions
+(default shortcuts Alt-T and Alt-U) were mistakenly disabled in 3.7.5 and
+3.8.0.
+
+..
+
+.. bpo: 38896
+.. date: 2019-11-22-19-43-43
+.. nonce: 6wvNMJ
+.. section: C API
+
+Remove ``PyUnicode_ClearFreeList()`` function: the Unicode free list has
+been removed in Python 3.3.
+
+..
+
+.. bpo: 37340
+.. date: 2019-11-20-11-08-06
+.. nonce: JBQJMS
+.. section: C API
+
+Remove ``PyMethod_ClearFreeList()`` and ``PyCFunction_ClearFreeList()``
+functions: the free lists of bound method objects have been removed.
+
+..
+
+.. bpo: 38835
+.. date: 2019-11-18-15-38-23
+.. nonce: II8Szd
+.. section: C API
+
+Exclude ``PyFPE_START_PROTECT()`` and ``PyFPE_END_PROTECT()`` macros of
+``pyfpe.h`` from ``Py_LIMITED_API`` (stable API).
--- /dev/null
+.. bpo: 39427
+.. date: 2020-01-22-22-28-04
+.. nonce: LiO-Eo
+.. release date: 2020-01-24
+.. section: Core and Builtins
+
+Document all possibilities for the ``-X`` options in the command line help
+section. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 39421
+.. date: 2020-01-22-15-53-37
+.. nonce: O3nG7u
+.. section: Core and Builtins
+
+Fix possible crashes when operating with the functions in the :mod:`heapq`
+module and custom comparison operators.
+
+..
+
+.. bpo: 39386
+.. date: 2020-01-20-21-40-57
+.. nonce: ULqD8t
+.. section: Core and Builtins
+
+Prevent double awaiting of async iterator.
+
+..
+
+.. bpo: 17005
+.. date: 2020-01-17-00-00-58
+.. nonce: nTSxsy
+.. section: Core and Builtins
+
+Add :class:`functools.TopologicalSorter` to the :mod:`functools` module to
+offers functionality to perform topological sorting of graphs. Patch by
+Pablo Galindo, Tim Peters and Larry Hastings.
+
+..
+
+.. bpo: 39320
+.. date: 2020-01-15-15-33-44
+.. nonce: b4hnJW
+.. section: Core and Builtins
+
+Replace four complex bytecodes for building sequences with three simpler
+ones.
+
+The following four bytecodes have been removed:
+
+* BUILD_LIST_UNPACK
+* BUILD_TUPLE_UNPACK
+* BUILD_SET_UNPACK
+* BUILD_TUPLE_UNPACK_WITH_CALL
+
+The following three bytecodes have been added:
+
+* LIST_TO_TUPLE
+* LIST_EXTEND
+* SET_UPDATE
+
+..
+
+.. bpo: 39336
+.. date: 2020-01-15-01-39-29
+.. nonce: nJ7W9I
+.. section: Core and Builtins
+
+Import loaders which publish immutable module objects can now publish
+immutable packages in addition to individual modules.
+
+..
+
+.. bpo: 39322
+.. date: 2020-01-13-15-18-13
+.. nonce: aAs-1T
+.. section: Core and Builtins
+
+Added a new function :func:`gc.is_finalized` to check if an object has been
+finalized by the garbage collector. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 39048
+.. date: 2020-01-13-14-45-22
+.. nonce: iPsj81
+.. section: Core and Builtins
+
+Improve the displayed error message when incorrect types are passed to
+``async with`` statements by looking up the :meth:`__aenter__` special
+method before the :meth:`__aexit__` special method when entering an
+asynchronous context manager. Patch by Géry Ogam.
+
+..
+
+.. bpo: 39235
+.. date: 2020-01-09-10-01-18
+.. nonce: RYwjoc
+.. section: Core and Builtins
+
+Fix AST end location for lone generator expression in function call, e.g.
+f(i for i in a).
+
+..
+
+.. bpo: 39209
+.. date: 2020-01-06-10-29-16
+.. nonce: QHAONe
+.. section: Core and Builtins
+
+Correctly handle multi-line tokens in interactive mode. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-01-05-13-40-08
+.. nonce: QRTJVC
+.. section: Core and Builtins
+
+Port _json extension module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 39216
+.. date: 2020-01-05-06-55-52
+.. nonce: 74jLh9
+.. section: Core and Builtins
+
+Fix constant folding optimization for positional only arguments - by Anthony
+Sottile.
+
+..
+
+.. bpo: 39215
+.. date: 2020-01-04-17-25-34
+.. nonce: xiqiIz
+.. section: Core and Builtins
+
+Fix ``SystemError`` when nested function has annotation on positional-only
+argument - by Anthony Sottile.
+
+..
+
+.. bpo: 39200
+.. date: 2020-01-04-01-14-32
+.. nonce: 8Z9DYp
+.. section: Core and Builtins
+
+Correct the error message when calling the :func:`min` or :func:`max` with
+no arguments. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39200
+.. date: 2020-01-03-14-50-14
+.. nonce: Ip2_iI
+.. section: Core and Builtins
+
+Correct the error message when trying to construct :class:`range` objects
+with no arguments. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 39166
+.. date: 2020-01-02-22-22-03
+.. nonce: Qt-UeD
+.. section: Core and Builtins
+
+Fix incorrect line execution reporting in trace functions when tracing the
+last iteration of asynchronous for loops. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 39114
+.. date: 2019-12-31-18-25-45
+.. nonce: WG9alt
+.. section: Core and Builtins
+
+Fix incorrect line execution reporting in trace functions when tracing
+exception handlers with name binding. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 39156
+.. date: 2019-12-30-10-53-59
+.. nonce: veT-CB
+.. section: Core and Builtins
+
+Split the COMPARE_OP bytecode instruction into four distinct instructions.
+
+* COMPARE_OP for rich comparisons
+* IS_OP for 'is' and 'is not' tests
+* CONTAINS_OP for 'in' and 'is not' tests
+* JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
+
+This improves the clarity of the interpreter and should provide a modest
+speedup.
+
+..
+
+.. bpo: 38588
+.. date: 2019-12-29-19-13-54
+.. nonce: pgXnNS
+.. section: Core and Builtins
+
+Fix possible crashes in dict and list when calling
+:c:func:`PyObject_RichCompareBool`.
+
+..
+
+.. bpo: 13601
+.. date: 2019-12-17-22-32-11
+.. nonce: vNP4LC
+.. section: Core and Builtins
+
+By default, ``sys.stderr`` is line-buffered now, even if ``stderr`` is
+redirected to a file. You can still make ``sys.stderr`` unbuffered by
+passing the :option:`-u` command-line option or setting the
+:envvar:`PYTHONUNBUFFERED` environment variable.
+
+(Contributed by Jendrik Seipp in bpo-13601.)
+
+..
+
+.. bpo: 38610
+.. date: 2019-10-31-14-30-39
+.. nonce: fHdVMS
+.. section: Core and Builtins
+
+Fix possible crashes in several list methods by holding strong references to
+list elements when calling :c:func:`PyObject_RichCompareBool`.
+
+..
+
+.. bpo: 32021
+.. date: 2019-03-11-13-30-40
+.. nonce: dpbtkP
+.. section: Core and Builtins
+
+Include brotli .br encoding in mimetypes encodings_map
+
+..
+
+.. bpo: 39430
+.. date: 2020-01-24-11-05-21
+.. nonce: I0UQzM
+.. section: Library
+
+Fixed race condition in lazy imports in :mod:`tarfile`.
+
+..
+
+.. bpo: 39413
+.. date: 2020-01-24-10-10-25
+.. nonce: 7XYDM8
+.. section: Library
+
+The :func:`os.unsetenv` function is now also available on Windows.
+
+..
+
+.. bpo: 39390
+.. date: 2020-01-23-21-34-29
+.. nonce: D2tSXk
+.. section: Library
+
+Fixed a regression with the `ignore` callback of :func:`shutil.copytree`.
+The argument types are now str and List[str] again.
+
+..
+
+.. bpo: 39395
+.. date: 2020-01-23-03-05-41
+.. nonce: 4dda42
+.. section: Library
+
+The :func:`os.putenv` and :func:`os.unsetenv` functions are now always
+available.
+
+..
+
+.. bpo: 39406
+.. date: 2020-01-22-21-18-58
+.. nonce: HMpe8x
+.. section: Library
+
+If ``setenv()`` C function is available, :func:`os.putenv` is now
+implemented with ``setenv()`` instead of ``putenv()``, so Python doesn't
+have to handle the environment variable memory.
+
+..
+
+.. bpo: 39396
+.. date: 2020-01-21-09-00-42
+.. nonce: 6UXQXE
+.. section: Library
+
+Fix ``math.nextafter(-0.0, +0.0)`` on AIX 7.1.
+
+..
+
+.. bpo: 29435
+.. date: 2020-01-20-18-48-00
+.. nonce: qqJ2Ax
+.. section: Library
+
+Allow :func:`tarfile.is_tarfile` to be used with file and file-like objects,
+like :func:`zipfile.is_zipfile`. Patch by William Woodruff.
+
+..
+
+.. bpo: 39377
+.. date: 2020-01-20-13-00-35
+.. nonce: QSFdaU
+.. section: Library
+
+Removed ``encoding`` option from :func:`json.loads`. It has been deprecated
+since Python 3.1.
+
+..
+
+.. bpo: 39389
+.. date: 2020-01-20-00-56-01
+.. nonce: fEirIS
+.. section: Library
+
+Write accurate compression level metadata in :mod:`gzip` archives, rather
+than always signaling maximum compression.
+
+..
+
+.. bpo: 39366
+.. date: 2020-01-17-18-14-51
+.. nonce: Cv3NQS
+.. section: Library
+
+The previously deprecated ``xpath()`` and ``xgtitle()`` methods of
+:class:`nntplib.NNTP` have been removed.
+
+..
+
+.. bpo: 39357
+.. date: 2020-01-16-11-24-00
+.. nonce: bCwx-h
+.. section: Library
+
+Remove the *buffering* parameter of :class:`bz2.BZ2File`. Since Python 3.0,
+it was ignored and using it was emitting :exc:`DeprecationWarning`. Pass an
+open file object, to control how the file is opened. The *compresslevel*
+parameter becomes keyword-only.
+
+..
+
+.. bpo: 39353
+.. date: 2020-01-16-10-21-48
+.. nonce: ntp7Ql
+.. section: Library
+
+Deprecate binhex4 and hexbin4 standards. Deprecate the :mod:`binhex` module
+and the following :mod:`binascii` functions: :func:`~binascii.b2a_hqx`,
+:func:`~binascii.a2b_hqx`, :func:`~binascii.rlecode_hqx`,
+:func:`~binascii.rledecode_hqx`, :func:`~binascii.crc_hqx`.
+
+..
+
+.. bpo: 39351
+.. date: 2020-01-16-09-27-28
+.. nonce: a-FQdv
+.. section: Library
+
+Remove ``base64.encodestring()`` and ``base64.decodestring()``, aliases
+deprecated since Python 3.1: use :func:`base64.encodebytes` and
+:func:`base64.decodebytes` instead.
+
+..
+
+.. bpo: 39350
+.. date: 2020-01-16-09-15-40
+.. nonce: ZQx0uY
+.. section: Library
+
+Remove ``fractions.gcd()`` function, deprecated since Python 3.5
+(:issue:`22486`): use :func:`math.gcd` instead.
+
+..
+
+.. bpo: 39329
+.. date: 2020-01-14-22-16-07
+.. nonce: 6OKGBn
+.. section: Library
+
+:class:`~smtplib.LMTP` constructor now has an optional *timeout* parameter.
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39313
+.. date: 2020-01-12-18-17-00
+.. nonce: DCTsnm
+.. section: Library
+
+Add a new ``exec_function`` option (*--exec-function* in the CLI) to
+``RefactoringTool`` for making ``exec`` a function. Patch by Batuhan
+Taskaya.
+
+..
+
+.. bpo: 39259
+.. date: 2020-01-12-17-19-40
+.. nonce: iax06r
+.. section: Library
+
+:class:`~ftplib.FTP_TLS` and :class:`~ftplib.FTP_TLS` now raise a
+:class:`ValueError` if the given timeout for their constructor is zero to
+prevent the creation of a non-blocking socket. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39259
+.. date: 2020-01-12-16-34-28
+.. nonce: J_yBVq
+.. section: Library
+
+:class:`~smtplib.SMTP` and :class:`~smtplib.SMTP_SSL` now raise a
+:class:`ValueError` if the given timeout for their constructor is zero to
+prevent the creation of a non-blocking socket. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39310
+.. date: 2020-01-12-13-34-42
+.. nonce: YMRdcj
+.. section: Library
+
+Add :func:`math.ulp`: return the value of the least significant bit of a
+float.
+
+..
+
+.. bpo: 39297
+.. date: 2020-01-11-01-15-37
+.. nonce: y98Z6Q
+.. section: Library
+
+Improved performance of importlib.metadata distribution discovery and
+resilients to inaccessible sys.path entries (importlib_metadata v1.4.0).
+
+..
+
+.. bpo: 39259
+.. date: 2020-01-11-00-32-45
+.. nonce: _S5VjC
+.. section: Library
+
+:class:`~nntplib.NNTP` and :class:`~nntplib.NNTP_SSL` now raise a
+:class:`ValueError` if the given timeout for their constructor is zero to
+prevent the creation of a non-blocking socket. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 38901
+.. date: 2020-01-10-22-30-48
+.. nonce: OdVIIb
+.. section: Library
+
+When you specify prompt='.' or equivalently python -m venv --prompt . ...
+the basename of the current directory is used to set the created venv's
+prompt when it's activated.
+
+..
+
+.. bpo: 39288
+.. date: 2020-01-10-16-52-09
+.. nonce: IB-aQX
+.. section: Library
+
+Add :func:`math.nextafter`: return the next floating-point value after *x*
+towards *y*.
+
+..
+
+.. bpo: 39259
+.. date: 2020-01-09-10-58-58
+.. nonce: RmDgCC
+.. section: Library
+
+:class:`~poplib.POP3` and :class:`~poplib.POP3_SSL` now raise a
+:class:`ValueError` if the given timeout for their constructor is zero to
+prevent the creation of a non-blocking socket. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39242
+.. date: 2020-01-08-23-25-27
+.. nonce: bnL65N
+.. section: Library
+
+Updated the Gmane domain from news.gmane.org to news.gmane.io which is used
+for examples of :class:`~nntplib.NNTP` news reader server and nntplib tests.
+
+..
+
+.. bpo: 35292
+.. date: 2020-01-08-14-39-19
+.. nonce: ihRT1z
+.. section: Library
+
+Proxy the `SimpleHTTPRequestHandler.guess_type` to `mimetypes.guess_type` so
+the `mimetypes.init` is called lazily to avoid unnecessary costs when
+:mod:`http.server` module is imported.
+
+..
+
+.. bpo: 39239
+.. date: 2020-01-07-01-02-44
+.. nonce: r7vecs
+.. section: Library
+
+The :meth:`select.epoll.unregister` method no longer ignores the
+:data:`~errno.EBADF` error.
+
+..
+
+.. bpo: 38907
+.. date: 2020-01-06-02-14-38
+.. nonce: F1RkCR
+.. section: Library
+
+In http.server script, restore binding to IPv4 on Windows.
+
+..
+
+.. bpo: 39152
+.. date: 2020-01-03-18-02-50
+.. nonce: JgPjCC
+.. section: Library
+
+Fix ttk.Scale.configure([name]) to return configuration tuple for name or
+all options. Giovanni Lombardo contributed part of the patch.
+
+..
+
+.. bpo: 39198
+.. date: 2020-01-02-20-21-03
+.. nonce: nzwGyG
+.. section: Library
+
+If an exception were to be thrown in `Logger.isEnabledFor` (say, by asyncio
+timeouts or stopit) , the `logging` global lock may not be released
+appropriately, resulting in deadlock. This change wraps that block of code
+with `try...finally` to ensure the lock is released.
+
+..
+
+.. bpo: 39191
+.. date: 2020-01-02-17-28-03
+.. nonce: ur_scy
+.. section: Library
+
+Perform a check for running loop before starting a new task in
+``loop.run_until_complete()`` to fail fast; it prevents the side effect of
+new task spawning before exception raising.
+
+..
+
+.. bpo: 38871
+.. date: 2020-01-01-18-44-52
+.. nonce: 3EEOLg
+.. section: Library
+
+Correctly parenthesize filter-based statements that contain lambda
+expressions in mod:`lib2to3`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39142
+.. date: 2019-12-31-19-27-23
+.. nonce: oqU5iD
+.. section: Library
+
+A change was made to logging.config.dictConfig to avoid converting instances
+of named tuples to ConvertingTuple. It's assumed that named tuples are too
+specialised to be treated like ordinary tuples; if a user of named tuples
+requires ConvertingTuple functionality, they will have to implement that
+themselves in their named tuple class.
+
+..
+
+.. bpo: 39158
+.. date: 2019-12-29-15-44-38
+.. nonce: cxVoOR
+.. section: Library
+
+ast.literal_eval() now supports empty sets.
+
+..
+
+.. bpo: 39129
+.. date: 2019-12-24-10-43-13
+.. nonce: jVx5rW
+.. section: Library
+
+Fix import path for ``asyncio.TimeoutError``
+
+..
+
+.. bpo: 39057
+.. date: 2019-12-15-21-47-54
+.. nonce: FOxn-w
+.. section: Library
+
+:func:`urllib.request.proxy_bypass_environment` now ignores leading dots and
+no longer ignores a trailing newline.
+
+..
+
+.. bpo: 39056
+.. date: 2019-12-15-21-05-16
+.. nonce: nEfUM9
+.. section: Library
+
+Fixed handling invalid warning category in the -W option. No longer import
+the re module if it is not needed.
+
+..
+
+.. bpo: 39055
+.. date: 2019-12-15-19-23-23
+.. nonce: FmN3un
+.. section: Library
+
+:func:`base64.b64decode` with ``validate=True`` raises now a binascii.Error
+if the input ends with a single ``\n``.
+
+..
+
+.. bpo: 21600
+.. date: 2019-12-14-14-38-40
+.. nonce: kC4Cgh
+.. section: Library
+
+Fix :func:`mock.patch.stopall` to stop active patches that were created with
+:func:`mock.patch.dict`.
+
+..
+
+.. bpo: 39019
+.. date: 2019-12-10-21-11-05
+.. nonce: YIlgZ7
+.. section: Library
+
+Implement dummy ``__class_getitem__`` for
+:class:`tempfile.SpooledTemporaryFile`.
+
+..
+
+.. bpo: 39019
+.. date: 2019-12-10-21-03-34
+.. nonce: i8RpMZ
+.. section: Library
+
+Implement dummy ``__class_getitem__`` for ``subprocess.Popen``,
+``subprocess.CompletedProcess``
+
+..
+
+.. bpo: 38914
+.. date: 2019-11-26-23-21-56
+.. nonce: 8l-g-T
+.. section: Library
+
+Adjusted the wording of the warning issued by distutils' ``check`` command
+when the ``author`` and ``maintainer`` fields are supplied but no
+corresponding e-mail field (``author_email`` or ``maintainer_email``) is
+found. The wording now reflects the fact that these fields are suggested,
+but not required. Patch by Juergen Gmach.
+
+..
+
+.. bpo: 38878
+.. date: 2019-11-22-12-08-52
+.. nonce: EJ0cFf
+.. section: Library
+
+Fixed __subclasshook__ of :class:`os.PathLike` to return a correct result
+upon inheritance. Patch by Bar Harel.
+
+..
+
+.. bpo: 38615
+.. date: 2019-11-17-17-32-35
+.. nonce: OVyaNX
+.. section: Library
+
+:class:`~imaplib.IMAP4` and :class:`~imaplib.IMAP4_SSL` now have an optional
+*timeout* parameter for their constructors. Also, the
+:meth:`~imaplib.IMAP4.open` method now has an optional *timeout* parameter
+with this change. The overridden methods of :class:`~imaplib.IMAP4_SSL` and
+:class:`~imaplib.IMAP4_stream` were applied to this change. Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 35182
+.. date: 2019-10-31-19-23-25
+.. nonce: hzeNl9
+.. section: Library
+
+Fixed :func:`Popen.communicate` subsequent call crash when the child process
+has already closed any piped standard stream, but still continues to be
+running. Patch by Andriy Maletsky.
+
+..
+
+.. bpo: 38630
+.. date: 2019-10-29-12-21-10
+.. nonce: Dv6Xrm
+.. section: Library
+
+On Unix, :meth:`subprocess.Popen.send_signal` now polls the process status.
+Polling reduces the risk of sending a signal to the wrong process if the
+process completed, the :attr:`subprocess.Popen.returncode` attribute is
+still ``None``, and the pid has been reassigned (recycled) to a new
+different process.
+
+..
+
+.. bpo: 38536
+.. date: 2019-10-21-20-24-51
+.. nonce: beZ0Sk
+.. section: Library
+
+Removes trailing space in formatted currency with `international=True` and a
+locale with symbol following value. E.g. `locale.currency(12.34,
+international=True)` returned `'12,34 EUR '` instead of `'12,34 EUR'`.
+
+..
+
+.. bpo: 38473
+.. date: 2019-10-14-21-14-55
+.. nonce: uXpVld
+.. section: Library
+
+Use signature from inner mock for autospecced methods attached with
+:func:`unittest.mock.attach_mock`. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 38361
+.. date: 2019-10-04-09-49-56
+.. nonce: LM4u4T
+.. section: Library
+
+Fixed an issue where ``ident`` could include a leading path separator when
+:func:`syslog.openlog` was called without arguments.
+
+..
+
+.. bpo: 38293
+.. date: 2019-09-29-08-17-03
+.. nonce: wls5s3
+.. section: Library
+
+Add :func:`copy.copy` and :func:`copy.deepcopy` support to :func:`property`
+objects.
+
+..
+
+.. bpo: 37958
+.. date: 2019-08-27-03-57-25
+.. nonce: lRORI3
+.. section: Library
+
+Added the pstats.Stats.get_profile_dict() method to return the profile data
+as a StatsProfile instance.
+
+..
+
+.. bpo: 28367
+.. date: 2019-05-06-22-38-47
+.. nonce: 2AKen5
+.. section: Library
+
+Termios magic constants for the following baud rates: - B500000 -
+B576000 - B921600 - B1000000 - B1152000 - B1500000 - B2000000 -
+B2500000 - B3000000 - B3500000 - B4000000 Patch by Andrey Smirnov
+
+..
+
+.. bpo: 39381
+.. date: 2020-01-18-15-37-56
+.. nonce: wTWe8d
+.. section: Documentation
+
+Mention in docs that :func:`asyncio.get_event_loop` implicitly creates new
+event loop only if called from the main thread.
+
+..
+
+.. bpo: 38918
+.. date: 2019-12-15-22-04-41
+.. nonce: 8JnDTS
+.. section: Documentation
+
+Add an entry for ``__module__`` in the "function" & "method" sections of the
+:mod:`inspect` docs' :ref:`inspect-types` table.
+
+..
+
+.. bpo: 3530
+.. date: 2019-11-17-11-53-10
+.. nonce: 8zFUMc
+.. section: Documentation
+
+In the :mod:`ast` module documentation, fix a misleading ``NodeTransformer``
+example and add advice on when to use the ``fix_missing_locations``
+function.
+
+..
+
+.. bpo: 39395
+.. date: 2020-01-23-03-05-13
+.. nonce: RoArIZ
+.. section: Build
+
+On non-Windows platforms, the :c:func:`setenv` and :c:func:`unsetenv`
+functions are now required to build Python.
+
+..
+
+.. bpo: 39160
+.. date: 2019-12-30-03-54-24
+.. nonce: aBmj13
+.. section: Build
+
+Updated the documentation in `./configure --help` to show default values,
+reference documentation where required and add additional explanation where
+needed.
+
+..
+
+.. bpo: 39144
+.. date: 2019-12-27-22-18-26
+.. nonce: dwHMlR
+.. section: Build
+
+The ctags and etags build targets both include Modules/_ctypes and Python
+standard library source files.
+
+..
+
+.. bpo: 39050
+.. date: 2020-01-22-22-28-06
+.. nonce: zkn0FO
+.. section: IDLE
+
+Make IDLE Settings dialog Help button work again.
+
+..
+
+.. bpo: 34118
+.. date: 2019-12-30-16-44-07
+.. nonce: FaNW0a
+.. section: IDLE
+
+Tag memoryview, range, and tuple as classes, the same as list, etcetera, in
+the library manual built-in functions list.
+
+..
+
+.. bpo: 32989
+.. date: 2018-03-03-12-56-26
+.. nonce: FVhmhH
+.. section: IDLE
+
+Add tests for editor newline_and_indent_event method. Remove dead code from
+pyparse find_good_parse_start method.
+
+..
+
+.. bpo: 39372
+.. date: 2020-01-17-19-25-48
+.. nonce: hGJMY6
+.. section: C API
+
+Clean header files of interfaces defined but with no implementation. The
+public API symbols being removed are:
+``_PyBytes_InsertThousandsGroupingLocale``,
+``_PyBytes_InsertThousandsGrouping``, ``_Py_InitializeFromArgs``,
+``_Py_InitializeFromWideArgs``, ``_PyFloat_Repr``, ``_PyFloat_Digits``,
+``_PyFloat_DigitsInit``, ``PyFrame_ExtendStack``, ``_PyAIterWrapper_Type``,
+``PyNullImporter_Type``, ``PyCmpWrapper_Type``, ``PySortWrapper_Type``,
+``PyNoArgsFunction``.
+
+..
+
+.. bpo: 39164
+.. date: 2019-12-30-10-43-52
+.. nonce: WEV0uu
+.. section: C API
+
+Add a private ``_PyErr_GetExcInfo()`` function to retrieve exception
+information of the specified Python thread state.
--- /dev/null
+.. bpo: 39184
+.. date: 2020-02-07-23-54-18
+.. nonce: v-ue-v
+.. release date: 2020-02-25
+.. section: Security
+
+Add audit events to functions in `fcntl`, `msvcrt`, `os`, `resource`,
+`shutil`, `signal` and `syslog`.
+
+..
+
+.. bpo: 39401
+.. date: 2020-01-28-20-54-09
+.. nonce: he7h_A
+.. section: Security
+
+Avoid unsafe DLL load at startup on Windows 7 and earlier.
+
+..
+
+.. bpo: 39184
+.. date: 2020-01-07-00-42-08
+.. nonce: fe7NgK
+.. section: Security
+
+Add audit events to command execution functions in os and pty modules.
+
+..
+
+.. bpo: 39382
+.. date: 2020-02-18-01-40-13
+.. nonce: OLSJu9
+.. section: Core and Builtins
+
+Fix a use-after-free in the single inheritance path of ``issubclass()``,
+when the ``__bases__`` of an object has a single reference, and so does its
+first item. Patch by Yonatan Goldschmidt.
+
+..
+
+.. bpo: 39573
+.. date: 2020-02-14-10-08-53
+.. nonce: BIIX2M
+.. section: Core and Builtins
+
+Update clinic tool to use :c:func:`Py_IS_TYPE`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39619
+.. date: 2020-02-13-07-35-00
+.. nonce: inb_master_chroot
+.. section: Core and Builtins
+
+Enable use of :func:`os.chroot` on HP-UX systems.
+
+..
+
+.. bpo: 39573
+.. date: 2020-02-13-01-30-22
+.. nonce: uTFj1m
+.. section: Core and Builtins
+
+Add :c:func:`Py_IS_TYPE` static inline function to check whether the object
+*o* type is *type*.
+
+..
+
+.. bpo: 39606
+.. date: 2020-02-11-23-59-07
+.. nonce: a72Sxc
+.. section: Core and Builtins
+
+Fix regression caused by fix for bpo-39386, that prevented calling
+``aclose`` on an async generator that had already been closed or exhausted.
+
+..
+
+.. bpo: 39579
+.. date: 2020-02-07-15-18-35
+.. nonce: itNmC0
+.. section: Core and Builtins
+
+Change the ending column offset of `Attribute` nodes constructed in
+`ast_for_dotted_name` to point at the end of the current node and not at the
+end of the last `NAME` node.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-02-07-12-57-40
+.. nonce: ySW6gq
+.. section: Core and Builtins
+
+Port _crypt extension module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-02-06-09-00-35
+.. nonce: oaxe1j
+.. section: Core and Builtins
+
+Port _contextvars extension module to multiphase initialization
+(:pep:`489`).
+
+..
+
+.. bpo: 39510
+.. date: 2020-02-04-10-27-41
+.. nonce: PMIh-f
+.. section: Core and Builtins
+
+Fix segfault in ``readinto()`` method on closed BufferedReader.
+
+..
+
+.. bpo: 39502
+.. date: 2020-01-30-14-36-31
+.. nonce: IJu0rl
+.. section: Core and Builtins
+
+Fix :func:`time.localtime` on 64-bit AIX to support years before 1902 and
+after 2038. Patch by M Felt.
+
+..
+
+.. bpo: 39492
+.. date: 2020-01-30-01-14-42
+.. nonce: eTuy0F
+.. section: Core and Builtins
+
+Fix a reference cycle in the C Pickler that was preventing the garbage
+collection of deleted, pickled objects.
+
+..
+
+.. bpo: 39453
+.. date: 2020-01-25-23-51-17
+.. nonce: xCOkYk
+.. section: Core and Builtins
+
+Fixed a possible crash in :meth:`list.__contains__` when a list is changed
+during comparing items. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39434
+.. date: 2020-01-24-01-07-04
+.. nonce: S5ehj9
+.. section: Core and Builtins
+
+:term:`floor division` of float operation now has a better performance. Also
+the message of :exc:`ZeroDivisionError` for this operation is updated. Patch
+by Dong-hee Na.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-01-19-11-06-30
+.. nonce: 0mjsfm
+.. section: Core and Builtins
+
+Port _codecs extension module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-01-18-11-06-28
+.. nonce: OKROOt
+.. section: Core and Builtins
+
+Port _bz2 extension module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-01-16-12-00-04
+.. nonce: fuqoBG
+.. section: Core and Builtins
+
+Port _abc extension module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 39320
+.. date: 2020-01-15-15-50-22
+.. nonce: oWARyk
+.. section: Core and Builtins
+
+Replace two complex bytecodes for building dicts with two simpler ones. The
+new bytecodes ``DICT_MERGE`` and ``DICT_UPDATE`` have been added The old
+bytecodes ``BUILD_MAP_UNPACK`` and ``BUILD_MAP_UNPACK_WITH_CALL`` have been
+removed.
+
+..
+
+.. bpo: 39219
+.. date: 2020-01-05-13-36-08
+.. nonce: uHtKd4
+.. section: Core and Builtins
+
+Syntax errors raised in the tokenizer now always set correct "text" and
+"offset" attributes.
+
+..
+
+.. bpo: 36051
+.. date: 2019-12-30-15-56-07
+.. nonce: imaVlq
+.. section: Core and Builtins
+
+Drop the GIL during large ``bytes.join`` operations. Patch by Bruce Merry.
+
+..
+
+.. bpo: 38960
+.. date: 2019-12-03-16-41-22
+.. nonce: kvoFM0
+.. section: Core and Builtins
+
+Fix DTrace build issues on FreeBSD. Patch by David Carlier.
+
+..
+
+.. bpo: 37207
+.. date: 2019-06-09-10-54-31
+.. nonce: bLjgLR
+.. section: Core and Builtins
+
+Speed up calls to ``range()`` by about 30%, by using the PEP 590
+``vectorcall`` calling convention. Patch by Mark Shannon.
+
+..
+
+.. bpo: 36144
+.. date: 2019-03-02-23-03-34
+.. nonce: LRl4LS
+.. section: Core and Builtins
+
+:class:`dict` (and :class:`collections.UserDict`) objects now support PEP
+584's merge (``|``) and update (``|=``) operators. Patch by Brandt Bucher.
+
+..
+
+.. bpo: 32856
+.. date: 2018-02-16-10-44-24
+.. nonce: UjR8SD
+.. section: Core and Builtins
+
+Optimized the idiom for assignment a temporary variable in comprehensions.
+Now ``for y in [expr]`` in comprehensions is as fast as a simple assignment
+``y = expr``.
+
+..
+
+.. bpo: 30566
+.. date: 2020-02-24-03-45-28
+.. nonce: qROxty
+.. section: Library
+
+Fix :exc:`IndexError` when trying to decode an invalid string with punycode
+codec.
+
+..
+
+.. bpo: 39649
+.. date: 2020-02-23-21-27-10
+.. nonce: qiubSp
+.. section: Library
+
+Remove obsolete check for `__args__` in bdb.Bdb.format_stack_entry.
+
+..
+
+.. bpo: 39648
+.. date: 2020-02-22-12-49-04
+.. nonce: Y-9N7F
+.. section: Library
+
+Expanded :func:`math.gcd` and :func:`math.lcm` to handle multiple arguments.
+
+..
+
+.. bpo: 39681
+.. date: 2020-02-21-13-58-40
+.. nonce: zN8hf0
+.. section: Library
+
+Fix a regression where the C pickle module wouldn't allow unpickling from a
+file-like object that doesn't expose a readinto() method.
+
+..
+
+.. bpo: 35950
+.. date: 2020-02-21-02-42-41
+.. nonce: 9G3-wl
+.. section: Library
+
+Raise :exc:`io.UnsupportedOperation` in :meth:`io.BufferedReader.truncate`
+when it is called on a read-only :class:`io.BufferedReader` instance.
+
+..
+
+.. bpo: 39479
+.. date: 2020-02-18-12-37-16
+.. nonce: j3UcCq
+.. section: Library
+
+Add :func:`math.lcm` function: least common multiple.
+
+..
+
+.. bpo: 39674
+.. date: 2020-02-18-12-31-24
+.. nonce: S_zqVM
+.. section: Library
+
+Revert "Do not expose abstract collection classes in the collections module"
+change (bpo-25988). Aliases to ABC like collections.Mapping are kept in
+Python 3.9 to ease transition from Python 2.7, but will be removed in Python
+3.10.
+
+..
+
+.. bpo: 39104
+.. date: 2020-02-16-18-49-16
+.. nonce: cI5MJY
+.. section: Library
+
+Fix hanging ProcessPoolExcutor on ``shutdown(wait=False)`` when a task has
+failed pickling.
+
+..
+
+.. bpo: 39627
+.. date: 2020-02-13-18-14-15
+.. nonce: Q0scyQ
+.. section: Library
+
+Fixed TypedDict totality check for inherited keys.
+
+..
+
+.. bpo: 39474
+.. date: 2020-02-12-12-01-26
+.. nonce: RZMEUH
+.. section: Library
+
+Fixed starting position of AST for expressions like ``(a)(b)``, ``(a)[b]``
+and ``(a).b``.
+
+..
+
+.. bpo: 21016
+.. date: 2020-02-12-10-04-39
+.. nonce: bFXPH7
+.. section: Library
+
+The :mod:`pydoc` and :mod:`trace` modules now use the :mod:`sysconfig`
+module to get the path to the Python standard library, to support uncommon
+installation path like ``/usr/lib64/python3.9/`` on Fedora. Patch by Jan
+Matějek.
+
+..
+
+.. bpo: 39590
+.. date: 2020-02-09-05-51-05
+.. nonce: rf98GU
+.. section: Library
+
+Collections.deque now holds strong references during deque.__contains__ and
+deque.count, fixing crashes.
+
+..
+
+.. bpo: 39586
+.. date: 2020-02-08-13-37-00
+.. nonce: nfTPxX
+.. section: Library
+
+The distutils ``bdist_msi`` command is deprecated in Python 3.9, use
+``bdist_wheel`` (wheel packages) instead.
+
+..
+
+.. bpo: 39595
+.. date: 2020-02-07-23-14-14
+.. nonce: DHwddE
+.. section: Library
+
+Improved performance of zipfile.Path for files with a large number of
+entries. Also improved performance and fixed minor issue as published with
+`importlib_metadata 1.5
+<https://importlib-metadata.readthedocs.io/en/latest/changelog%20(links).html#v1-5-0>`_.
+
+..
+
+.. bpo: 39350
+.. date: 2020-02-06-13-34-52
+.. nonce: wRwup1
+.. section: Library
+
+Fix regression in :class:`fractions.Fraction` if the numerator and/or the
+denominator is an :class:`int` subclass. The :func:`math.gcd` function is
+now used to normalize the *numerator* and *denominator*. :func:`math.gcd`
+always return a :class:`int` type. Previously, the GCD type depended on
+*numerator* and *denominator*.
+
+..
+
+.. bpo: 39567
+.. date: 2020-02-06-10-23-32
+.. nonce: VpFBxt
+.. section: Library
+
+Added audit for :func:`os.walk`, :func:`os.fwalk`, :meth:`pathlib.Path.glob`
+and :meth:`pathlib.Path.rglob`.
+
+..
+
+.. bpo: 39559
+.. date: 2020-02-05-18-29-14
+.. nonce: L8i5YB
+.. section: Library
+
+Remove unused, undocumented argument ``getters`` from :func:`uuid.getnode`
+
+..
+
+.. bpo: 38149
+.. date: 2020-02-05-11-24-16
+.. nonce: GWsjHE
+.. section: Library
+
+:func:`sys.audit` is now called only once per call of :func:`glob.glob` and
+:func:`glob.iglob`.
+
+..
+
+.. bpo: 39546
+.. date: 2020-02-03-15-12-51
+.. nonce: _Kj0Pn
+.. section: Library
+
+Fix a regression in :class:`~argparse.ArgumentParser` where
+``allow_abbrev=False`` was ignored for long options that used a prefix
+character other than "-".
+
+..
+
+.. bpo: 39450
+.. date: 2020-02-02-14-46-34
+.. nonce: 48R274
+.. section: Library
+
+Striped whitespace from docstring before returning it from
+:func:`unittest.case.shortDescription`.
+
+..
+
+.. bpo: 12915
+.. date: 2020-02-02-10-08-25
+.. nonce: d6r50-
+.. section: Library
+
+A new function ``resolve_name`` has been added to the ``pkgutil`` module.
+This resolves a string of the form ``'a.b.c.d'`` or ``'a.b:c.d'`` to an
+object. In the example, ``a.b`` is a package/module and ``c.d`` is an object
+within that package/module reached via recursive attribute access.
+
+..
+
+.. bpo: 39353
+.. date: 2020-01-30-09-07-16
+.. nonce: wTl9hc
+.. section: Library
+
+The :func:`binascii.crc_hqx` function is no longer deprecated.
+
+..
+
+.. bpo: 39493
+.. date: 2020-01-30-01-13-19
+.. nonce: CbFRi7
+.. section: Library
+
+Mark ``typing.IO.closed`` as a property
+
+..
+
+.. bpo: 39491
+.. date: 2020-01-29-22-47-12
+.. nonce: tdl17b
+.. section: Library
+
+Add :data:`typing.Annotated` and ``include_extras`` parameter to
+:func:`typing.get_type_hints` as part of :pep:`593`. Patch by Till
+Varoquaux, documentation by Till Varoquaux and Konstantin Kashin.
+
+..
+
+.. bpo: 39485
+.. date: 2020-01-29-14-58-27
+.. nonce: Zy3ot6
+.. section: Library
+
+Fix a bug in :func:`unittest.mock.create_autospec` that would complain about
+the wrong number of arguments for custom descriptors defined in an extension
+module returning functions.
+
+..
+
+.. bpo: 38932
+.. date: 2020-01-25-13-41-27
+.. nonce: 1pu_8I
+.. section: Library
+
+Mock fully resets child objects on reset_mock(). Patch by Vegard Stikbakke
+
+..
+
+.. bpo: 39082
+.. date: 2020-01-24-13-24-35
+.. nonce: qKgrq_
+.. section: Library
+
+Allow AsyncMock to correctly patch static/class methods
+
+..
+
+.. bpo: 39432
+.. date: 2020-01-23-16-08-58
+.. nonce: Cee6mi
+.. section: Library
+
+Implement PEP-489 algorithm for non-ascii "PyInit\_..." symbol names in
+distutils to make it export the correct init symbol also on Windows.
+
+..
+
+.. bpo: 18819
+.. date: 2020-01-20-10-06-19
+.. nonce: H4qsoS
+.. section: Library
+
+Omit ``devmajor`` and ``devminor`` fields for non-device files in
+:mod:`tarfile` archives, enabling bit-for-bit compatibility with GNU
+``tar(1)``.
+
+..
+
+.. bpo: 39349
+.. date: 2020-01-19-04-12-34
+.. nonce: 7CV-LC
+.. section: Library
+
+Added a new *cancel_futures* parameter to
+:meth:`concurrent.futures.Executor.shutdown` that cancels all pending
+futures which have not started running, instead of waiting for them to
+complete before shutting down the executor.
+
+..
+
+.. bpo: 39274
+.. date: 2020-01-15-23-13-03
+.. nonce: lpc0-n
+.. section: Library
+
+``bool(fraction.Fraction)`` now returns a boolean even if (numerator != 0)
+does not return a boolean (ex: numpy number).
+
+..
+
+.. bpo: 34793
+.. date: 2019-12-09-17-24-29
+.. nonce: D82Dyu
+.. section: Library
+
+Remove support for ``with (await asyncio.lock):`` and ``with (yield from
+asyncio.lock):``. The same is correct for ``asyncio.Condition`` and
+``asyncio.Semaphore``.
+
+..
+
+.. bpo: 25597
+.. date: 2019-09-12-12-11-05
+.. nonce: mPMzVx
+.. section: Library
+
+Ensure, if ``wraps`` is supplied to :class:`unittest.mock.MagicMock`, it is
+used to calculate return values for the magic methods instead of using the
+default return values. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 36350
+.. date: 2019-03-18-16-17-59
+.. nonce: udRSWE
+.. section: Library
+
+`inspect.Signature.parameters` and `inspect.BoundArguments.arguments` are
+now dicts instead of OrderedDicts. Patch contributed by Rémi Lapeyre.
+
+..
+
+.. bpo: 35727
+.. date: 2019-01-12-20-39-34
+.. nonce: FWrbHn
+.. section: Library
+
+Fix sys.exit() and sys.exit(None) exit code propagation when used in
+multiprocessing.Process.
+
+..
+
+.. bpo: 32173
+.. date: 2017-12-04-10-14-23
+.. nonce: e0C5dF
+.. section: Library
+
+* Add `lazycache` function to `__all__`.
+* Use `dict.clear` to clear the cache.
+* Refactoring `getline` function and `checkcache` function.
+
+..
+
+.. bpo: 17422
+.. date: 2020-02-19-11-13-47
+.. nonce: g7_9zz
+.. section: Documentation
+
+The language reference now specifies restrictions on class namespaces.
+Adapted from a patch by Ethan Furman.
+
+..
+
+.. bpo: 39572
+.. date: 2020-02-18-18-37-07
+.. nonce: CCtzy1
+.. section: Documentation
+
+Updated documentation of ``total`` flag of ``TypedDict``.
+
+..
+
+.. bpo: 39654
+.. date: 2020-02-18-07-42-20
+.. nonce: MoT1jI
+.. section: Documentation
+
+In pyclbr doc, update 'class' to 'module' where appropriate and add
+readmodule comment. Patch by Hakan Çelik.
+
+..
+
+.. bpo: 39153
+.. date: 2020-01-27-22-24-51
+.. nonce: Pjl8jV
+.. section: Documentation
+
+Clarify refcounting semantics for the following functions: -
+PyObject_SetItem - PyMapping_SetItemString - PyDict_SetItem -
+PyDict_SetItemString
+
+..
+
+.. bpo: 39392
+.. date: 2020-01-27-18-18-42
+.. nonce: oiqcLO
+.. section: Documentation
+
+Explain that when filling with turtle, overlap regions may be left unfilled.
+
+..
+
+.. bpo: 39369
+.. date: 2020-01-17-13-59-21
+.. nonce: Bx5yE3
+.. section: Documentation
+
+Update mmap readline method description. The fact that the readline method
+does update the file position should not be ignored since this might give
+the impression for the programmer that it doesn't update it.
+
+..
+
+.. bpo: 9056
+.. date: 2018-09-28-18-13-08
+.. nonce: -sFOwU
+.. section: Documentation
+
+Include subsection in TOC for PDF version of docs.
+
+..
+
+.. bpo: 38325
+.. date: 2020-02-11-00-38-32
+.. nonce: HgmfoE
+.. section: Tests
+
+Skip tests on non-BMP characters of test_winconsoleio.
+
+..
+
+.. bpo: 39502
+.. date: 2020-01-30-15-04-54
+.. nonce: chbpII
+.. section: Tests
+
+Skip test_zipfile.test_add_file_after_2107() if :func:`time.localtime` fails
+with :exc:`OverflowError`. It is the case on AIX 6.1 for example.
+
+..
+
+.. bpo: 39489
+.. date: 2020-01-29-19-17-02
+.. nonce: HKPzv-
+.. section: Build
+
+Remove ``COUNT_ALLOCS`` special build.
+
+..
+
+.. bpo: 39553
+.. date: 2020-02-04-19-50-53
+.. nonce: _EnweA
+.. section: Windows
+
+Delete unused code related to SxS manifests.
+
+..
+
+.. bpo: 39439
+.. date: 2020-01-24-03-15-05
+.. nonce: sFxGfR
+.. section: Windows
+
+Honor the Python path when a virtualenv is active on Windows.
+
+..
+
+.. bpo: 39393
+.. date: 2020-01-20-23-42-53
+.. nonce: gWlJDG
+.. section: Windows
+
+Improve the error message when attempting to load a DLL with unresolved
+dependencies.
+
+..
+
+.. bpo: 38883
+.. date: 2020-01-11-22-53-55
+.. nonce: X7FRaN
+.. section: Windows
+
+:meth:`~pathlib.Path.home()` and :meth:`~pathlib.Path.expanduser()` on
+Windows now prefer :envvar:`USERPROFILE` and no longer use :envvar:`HOME`,
+which is not normally set for regular user accounts. This makes them again
+behave like :func:`os.path.expanduser`, which was changed to ignore
+:envvar:`HOME` in 3.8, see :issue:`36264`.
+
+..
+
+.. bpo: 39185
+.. date: 2020-01-02-01-11-53
+.. nonce: T4herN
+.. section: Windows
+
+The build.bat script has additional options for very-quiet output (-q) and
+very-verbose output (-vv)
+
+..
+
+.. bpo: 39663
+.. date: 2020-02-17-21-09-03
+.. nonce: wexcsH
+.. section: IDLE
+
+Add tests for pyparse find_good_parse_start().
+
+..
+
+.. bpo: 39600
+.. date: 2020-02-10-17-09-48
+.. nonce: X6NsyM
+.. section: IDLE
+
+In the font configuration window, remove duplicated font names.
+
+..
+
+.. bpo: 30780
+.. date: 2020-01-27-16-44-29
+.. nonce: nR80qu
+.. section: IDLE
+
+Add remaining configdialog tests for buttons and highlights and keys tabs.
+
+..
+
+.. bpo: 39388
+.. date: 2020-01-25-02-26-45
+.. nonce: x4TQNh
+.. section: IDLE
+
+IDLE Settings Cancel button now cancels pending changes
+
+..
+
+.. bpo: 38792
+.. date: 2019-11-13-23-51-39
+.. nonce: xhTC5a
+.. section: IDLE
+
+Close an IDLE shell calltip if a :exc:`KeyboardInterrupt` or shell restart
+occurs. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 35081
+.. date: 2020-02-12-21-38-49
+.. nonce: 5tj1yC
+.. section: C API
+
+Move the ``bytes_methods.h`` header file to the internal C API as
+``pycore_bytes_methods.h``: it only contains private symbols (prefixed by
+``_Py``), except of the ``PyDoc_STRVAR_shared()`` macro.
+
+..
+
+.. bpo: 35081
+.. date: 2020-02-12-21-24-02
+.. nonce: at7BjN
+.. section: C API
+
+Move the ``dtoa.h`` header file to the internal C API as ``pycore_dtoa.h``:
+it only contains private functions (prefixed by ``_Py``). The :mod:`math`
+and :mod:`cmath` modules must now be compiled with the ``Py_BUILD_CORE``
+macro defined.
+
+..
+
+.. bpo: 39573
+.. date: 2020-02-07-10-41-53
+.. nonce: EG9VDI
+.. section: C API
+
+Add :c:func:`Py_SET_SIZE` function to set the size of an object.
+
+..
+
+.. bpo: 39500
+.. date: 2020-02-07-09-35-43
+.. nonce: xRAEgX
+.. section: C API
+
+:c:func:`PyUnicode_IsIdentifier` does not call :c:func:`Py_FatalError`
+anymore if the string is not ready.
+
+..
+
+.. bpo: 39573
+.. date: 2020-02-07-03-39-03
+.. nonce: Oa8cL1
+.. section: C API
+
+Add :c:func:`Py_SET_TYPE` function to set the type of an object.
+
+..
+
+.. bpo: 39573
+.. date: 2020-02-07-00-23-44
+.. nonce: nRD1q7
+.. section: C API
+
+Add a :c:func:`Py_SET_REFCNT` function to set the reference counter of an
+object.
+
+..
+
+.. bpo: 39542
+.. date: 2020-02-05-13-14-20
+.. nonce: 5mleGX
+.. section: C API
+
+Convert :c:func:`PyType_HasFeature`, :c:func:`PyType_Check` and
+:c:func:`PyType_CheckExact` macros to static inline functions.
+
+..
+
+.. bpo: 39542
+.. date: 2020-02-05-12-40-51
+.. nonce: si-_Zq
+.. section: C API
+
+In the limited C API, ``PyObject_INIT()`` and ``PyObject_INIT_VAR()`` are
+now defined as aliases to :c:func:`PyObject_Init` and
+:c:func:`PyObject_InitVar` to make their implementation opaque. It avoids to
+leak implementation details in the limited C API. Exclude the following
+functions from the limited C API: ``_Py_NewReference()``,
+``_Py_ForgetReference()``, ``_PyTraceMalloc_NewReference()`` and
+``_Py_GetRefTotal()``.
+
+..
+
+.. bpo: 39542
+.. date: 2020-02-05-12-00-18
+.. nonce: RJCUKR
+.. section: C API
+
+Exclude trashcan mechanism from the limited C API: it requires access to
+PyTypeObject and PyThreadState structure fields, whereas these structures
+are opaque in the limited C API.
+
+..
+
+.. bpo: 39511
+.. date: 2020-01-31-16-35-21
+.. nonce: nv9yEn
+.. section: C API
+
+The :c:func:`PyThreadState_Clear` function now calls the
+:c:member:`PyThreadState.on_delete` callback. Previously, that happened in
+:c:func:`PyThreadState_Delete`.
+
+..
+
+.. bpo: 38076
+.. date: 2020-01-17-11-37-05
+.. nonce: cxfw2x
+.. section: C API
+
+Fix to clear the interpreter state only after clearing module globals to
+guarantee module state access from C Extensions during runtime destruction
+
+..
+
+.. bpo: 39245
+.. date: 2020-01-07-13-46-40
+.. nonce: G7wog6
+.. section: C API
+
+The Vectorcall API (PEP 590) was made public, adding the functions
+``PyObject_Vectorcall``, ``PyObject_VectorcallMethod``,
+``PyVectorcall_Function``, ``PyObject_CallOneArg``,
+``PyObject_CallMethodNoArgs``, ``PyObject_CallMethodOneArg``,
+``PyObject_FastCallDict``, and the flag ``Py_TPFLAGS_HAVE_VECTORCALL``.
--- /dev/null
+.. bpo: 38576
+.. date: 2020-03-14-14-57-44
+.. nonce: OowwQn
+.. release date: 2020-03-23
+.. section: Security
+
+Disallow control characters in hostnames in http.client, addressing
+CVE-2019-18348. Such potentially malicious header injection URLs now cause a
+InvalidURL to be raised.
+
+..
+
+.. bpo: 40010
+.. date: 2020-03-20-13-51-55
+.. nonce: QGf5s8
+.. section: Core and Builtins
+
+Optimize pending calls in multithreaded applications. If a thread different
+than the main thread schedules a pending call (:c:func:`Py_AddPendingCall`),
+the bytecode evaluation loop is no longer interrupted at each bytecode
+instruction to check for pending calls which cannot be executed. Only the
+main thread can execute pending calls.
+
+Previously, the bytecode evaluation loop was interrupted at each instruction
+until the main thread executes pending calls.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-20-13-42-35
+.. nonce: bhIu5M
+.. section: Core and Builtins
+
+Port _weakref extension module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-19-23-34-22
+.. nonce: ayunLM
+.. section: Core and Builtins
+
+Port _collections module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 40010
+.. date: 2020-03-19-02-26-13
+.. nonce: Y-LIR0
+.. section: Core and Builtins
+
+Optimize signal handling in multithreaded applications. If a thread
+different than the main thread gets a signal, the bytecode evaluation loop
+is no longer interrupted at each bytecode instruction to check for pending
+signals which cannot be handled. Only the main thread of the main
+interpreter can handle signals.
+
+Previously, the bytecode evaluation loop was interrupted at each instruction
+until the main thread handles signals.
+
+..
+
+.. bpo: 39984
+.. date: 2020-03-19-00-45-37
+.. nonce: u-bHIq
+.. section: Core and Builtins
+
+If :c:func:`Py_AddPendingCall` is called in a subinterpreter, the function
+is now scheduled to be called from the subinterpreter, rather than being
+called from the main interpreter. Each subinterpreter now has its own list
+of scheduled calls.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-18-19-48-53
+.. nonce: ELEihr
+.. section: Core and Builtins
+
+Port _heapq module to multiphase initialization.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-18-00-17-26
+.. nonce: 7AtdhP
+.. section: Core and Builtins
+
+Port itertools module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 37207
+.. date: 2020-03-17-22-35-29
+.. nonce: sBAV1j
+.. section: Core and Builtins
+
+Speed up calls to ``frozenset()`` by using the :pep:`590` ``vectorcall``
+calling convention. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39984
+.. date: 2020-03-17-01-55-33
+.. nonce: y5Chgb
+.. section: Core and Builtins
+
+subinterpreters: Move ``_PyRuntimeState.ceval.tracing_possible`` to
+``PyInterpreterState.ceval.tracing_possible``: each interpreter now has its
+own variable.
+
+..
+
+.. bpo: 37207
+.. date: 2020-03-15-23-16-00
+.. nonce: 6XbnQA
+.. section: Core and Builtins
+
+Speed up calls to ``set()`` by using the :pep:`590` ``vectorcall`` calling
+convention. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-15-20-51-15
+.. nonce: iH0JND
+.. section: Core and Builtins
+
+Port _statistics module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 39968
+.. date: 2020-03-15-13-51-10
+.. nonce: f-Xi39
+.. section: Core and Builtins
+
+Use inline function to replace extension modules' get_module_state macros.
+
+..
+
+.. bpo: 39965
+.. date: 2020-03-15-03-52-01
+.. nonce: Od3ZdP
+.. section: Core and Builtins
+
+Correctly raise ``SyntaxError`` if *await* is used inside non-async
+functions and ``PyCF_ALLOW_TOP_LEVEL_AWAIT`` is set (like in the asyncio
+REPL). Patch by Pablo Galindo.
+
+..
+
+.. bpo: 39562
+.. date: 2020-03-12-22-13-50
+.. nonce: E2u273
+.. section: Core and Builtins
+
+Allow executing asynchronous comprehensions on the top level when the
+``PyCF_ALLOW_TOP_LEVEL_AWAIT`` flag is given. Patch by Batuhan Taskaya.
+
+..
+
+.. bpo: 37207
+.. date: 2020-03-12-02-41-12
+.. nonce: ye7OM3
+.. section: Core and Builtins
+
+Speed up calls to ``tuple()`` by using the :pep:`590` ``vectorcall`` calling
+convention. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 38373
+.. date: 2020-03-11-12-28-16
+.. nonce: FE9S21
+.. section: Core and Builtins
+
+Changed list overallocation strategy. It no longer overallocates if the new
+size is closer to overallocated size than to the old size and adds padding.
+
+..
+
+.. bpo: 39926
+.. date: 2020-03-10-19-14-42
+.. nonce: H19bAa
+.. section: Core and Builtins
+
+Update Unicode database to Unicode version 13.0.0.
+
+..
+
+.. bpo: 19466
+.. date: 2020-03-08-12-11-38
+.. nonce: OdOpXP
+.. section: Core and Builtins
+
+Clear the frames of daemon threads earlier during the Python shutdown to
+call objects destructors. So "unclosed file" resource warnings are now
+emitted for daemon threads in a more reliable way.
+
+..
+
+.. bpo: 38894
+.. date: 2020-03-06-21-04-39
+.. nonce: nfcGKv
+.. section: Core and Builtins
+
+Fix a bug that was causing incomplete results when calling
+``pathlib.Path.glob`` in the presence of symlinks that point to files where
+the user does not have read access. Patch by Pablo Galindo and Matt
+Wozniski.
+
+..
+
+.. bpo: 39877
+.. date: 2020-03-06-18-30-00
+.. nonce: bzd1y0
+.. section: Core and Builtins
+
+Fix :c:func:`PyEval_RestoreThread` random crash at exit with daemon threads.
+It now accesses the ``_PyRuntime`` variable directly instead of using
+``tstate->interp->runtime``, since ``tstate`` can be a dangling pointer
+after :c:func:`Py_Finalize` has been called. Moreover, the daemon thread now
+exits before trying to take the GIL.
+
+..
+
+.. bpo: 39871
+.. date: 2020-03-06-06-12-37
+.. nonce: dCAj_2
+.. section: Core and Builtins
+
+Fix a possible :exc:`SystemError` in ``math.{atan2,copysign,remainder}()``
+when the first argument cannot be converted to a :class:`float`. Patch by
+Zackery Spytz.
+
+..
+
+.. bpo: 39776
+.. date: 2020-03-02-20-12-33
+.. nonce: fNaxi_
+.. section: Core and Builtins
+
+Fix race condition where threads created by PyGILState_Ensure() could get a
+duplicate id.
+
+This affects consumers of tstate->id like the contextvar caching machinery,
+which could return invalid cached objects under heavy thread load (observed
+in embedded scenarios).
+
+..
+
+.. bpo: 39778
+.. date: 2020-03-02-19-21-21
+.. nonce: _YGLEc
+.. section: Core and Builtins
+
+Fixed a crash due to incorrect handling of weak references in
+``collections.OrderedDict`` classes. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-02-22-14-33-59
+.. nonce: BTJ0cX
+.. section: Core and Builtins
+
+Port audioop extension module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 39702
+.. date: 2020-02-20-08-12-52
+.. nonce: 4_AmyF
+.. section: Core and Builtins
+
+Relax :term:`decorator` grammar restrictions to allow any valid expression
+(:pep:`614`).
+
+..
+
+.. bpo: 38091
+.. date: 2020-02-14-23-10-07
+.. nonce: pwR0K7
+.. section: Core and Builtins
+
+Tweak import deadlock detection code to not deadlock itself.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-02-05-07-55-57
+.. nonce: H_tCC9
+.. section: Core and Builtins
+
+Port _locale extension module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 39087
+.. date: 2020-02-03-21-12-39
+.. nonce: YnbUpL
+.. section: Core and Builtins
+
+Optimize :c:func:`PyUnicode_AsUTF8` and :c:func:`PyUnicode_AsUTF8AndSize`
+slightly when they need to create internal UTF-8 cache.
+
+..
+
+.. bpo: 39520
+.. date: 2020-02-02-00-12-07
+.. nonce: uicBq6
+.. section: Core and Builtins
+
+Fix unparsing of ext slices with no items (``foo[:,]``). Patch by Batuhan
+Taskaya.
+
+..
+
+.. bpo: 39220
+.. date: 2020-01-06-13-58-37
+.. nonce: KGFovE
+.. section: Core and Builtins
+
+Do not optimize annotations if 'from __future__ import annotations' is used.
+Patch by Pablo Galindo.
+
+..
+
+.. bpo: 35712
+.. date: 2019-05-08-11-11-45
+.. nonce: KJthus
+.. section: Core and Builtins
+
+Using :data:`NotImplemented` in a boolean context has been deprecated. Patch
+contributed by Josh Rosenberg.
+
+..
+
+.. bpo: 22490
+.. date: 2018-09-23-16-32-58
+.. nonce: 8e0YDf
+.. section: Core and Builtins
+
+Don't leak environment variable ``__PYVENV_LAUNCHER__`` into the interpreter
+session on macOS.
+
+..
+
+.. bpo: 39830
+.. date: 2020-03-23-05-21-13
+.. nonce: IkqU1Y
+.. section: Library
+
+Add :class:`zipfile.Path` to ``__all__`` in the :mod:`zipfile` module.
+
+..
+
+.. bpo: 40000
+.. date: 2020-03-18-12-54-25
+.. nonce: FnsPZC
+.. section: Library
+
+Improved error messages for validation of ``ast.Constant`` nodes. Patch by
+Batuhan Taskaya.
+
+..
+
+.. bpo: 39999
+.. date: 2020-03-18-11-50-25
+.. nonce: 8aOXDT
+.. section: Library
+
+``__module__`` of the AST node classes is now set to "ast" instead of
+"_ast". Added docstrings for dummy AST node classes and deprecated
+attributes.
+
+..
+
+.. bpo: 39991
+.. date: 2020-03-17-12-40-38
+.. nonce: hLPPs4
+.. section: Library
+
+:func:`uuid.getnode` now skips IPv6 addresses with the same string length
+than a MAC address (17 characters): only use MAC addresses.
+
+..
+
+.. bpo: 39988
+.. date: 2020-03-17-09-35-00
+.. nonce: kXGl35
+.. section: Library
+
+Deprecated ``ast.AugLoad`` and ``ast.AugStore`` node classes because they
+are no longer used.
+
+..
+
+.. bpo: 39656
+.. date: 2020-03-16-11-38-45
+.. nonce: MaNOgm
+.. section: Library
+
+Ensure ``bin/python3.#`` is always present in virtual environments on POSIX
+platforms - by Anthony Sottile.
+
+..
+
+.. bpo: 39969
+.. date: 2020-03-15-17-56-48
+.. nonce: 6snm0c
+.. section: Library
+
+Deprecated ``ast.Param`` node class because it's no longer used. Patch by
+Batuhan Taskaya.
+
+..
+
+.. bpo: 39360
+.. date: 2020-03-15-05-41-05
+.. nonce: cmcU5p
+.. section: Library
+
+Ensure all workers exit when finalizing a :class:`multiprocessing.Pool`
+implicitly via the module finalization handlers of multiprocessing. This
+fixes a deadlock situation that can be experienced when the Pool is not
+properly finalized via the context manager or a call to
+``multiprocessing.Pool.terminate``. Patch by Batuhan Taskaya and Pablo
+Galindo.
+
+..
+
+.. bpo: 35370
+.. date: 2020-03-13-14-41-28
+.. nonce: df50Q7
+.. section: Library
+
+sys.settrace(), sys.setprofile() and _lsprof.Profiler.enable() now properly
+report :c:func:`PySys_Audit` error if "sys.setprofile" or "sys.settrace"
+audit event is denied.
+
+..
+
+.. bpo: 39936
+.. date: 2020-03-12-21-59-47
+.. nonce: Ca9IKe
+.. section: Library
+
+AIX: Fix _aix_support module when the subprocess is not available, when
+building Python from scratch. It now uses new private _bootsubprocess
+module, rather than having two implementations depending if subprocess is
+available or not. So _aix_support.aix_platform() result is now the same if
+subprocess is available or not.
+
+..
+
+.. bpo: 36144
+.. date: 2020-03-12-11-55-16
+.. nonce: 9bxGH_
+.. section: Library
+
+:class:`collections.OrderedDict` now implements ``|`` and ``|=``
+(:pep:`584`).
+
+..
+
+.. bpo: 39652
+.. date: 2020-03-11-23-08-25
+.. nonce: gbasrk
+.. section: Library
+
+The column name found in ``sqlite3.Cursor.description`` is now truncated on
+the first '[' only if the PARSE_COLNAMES option is set.
+
+..
+
+.. bpo: 39915
+.. date: 2020-03-10-19-38-47
+.. nonce: CjPeiY
+.. section: Library
+
+Ensure :attr:`unittest.mock.AsyncMock.await_args_list` has call objects in
+the order of awaited arguments instead of using
+:attr:`unittest.mock.Mock.call_args` which has the last value of the call.
+Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 36144
+.. date: 2020-03-10-19-22-31
+.. nonce: LABm7W
+.. section: Library
+
+Updated :data:`os.environ` and :data:`os.environb` to support :pep:`584`'s
+merge (``|``) and update (``|=``) operators.
+
+..
+
+.. bpo: 38662
+.. date: 2020-03-10-15-32-31
+.. nonce: o1DMXj
+.. section: Library
+
+The ``ensurepip`` module now invokes ``pip`` via the ``runpy`` module. Hence
+it is no longer tightly coupled with the internal API of the bundled ``pip``
+version, allowing easier updates to a newer ``pip`` version both internally
+and for distributors.
+
+..
+
+.. bpo: 38075
+.. date: 2020-03-10-12-52-06
+.. nonce: qbESAF
+.. section: Library
+
+Fix the :meth:`random.Random.seed` method when a :class:`bool` is passed as
+the seed.
+
+..
+
+.. bpo: 39916
+.. date: 2020-03-09-18-56-27
+.. nonce: BHHyp3
+.. section: Library
+
+More reliable use of ``os.scandir()`` in ``Path.glob()``. It no longer emits
+a ResourceWarning when interrupted.
+
+..
+
+.. bpo: 39850
+.. date: 2020-03-09-01-45-06
+.. nonce: eaJNIE
+.. section: Library
+
+:mod:`multiprocessing` now supports abstract socket addresses (if abstract
+sockets are supported in the running platform). When creating arbitrary
+addresses (like when default-constructing
+:class:`multiprocessing.connection.Listener` objects) abstract sockets are
+preferred to avoid the case when the temporary-file-generated address is too
+large for an AF_UNIX socket address. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 36287
+.. date: 2020-03-08-09-53-55
+.. nonce: mxr5m8
+.. section: Library
+
+:func:`ast.dump()` no longer outputs optional fields and attributes with
+default values. The default values for optional fields and attributes of AST
+nodes are now set as class attributes (e.g. ``Constant.kind`` is set to
+``None``).
+
+..
+
+.. bpo: 39889
+.. date: 2020-03-07-16-44-51
+.. nonce: 3RYqeX
+.. section: Library
+
+Fixed :func:`ast.unparse` for extended slices containing a single element
+(e.g. ``a[i:j,]``). Remove redundant tuples when index with a tuple (e.g.
+``a[i, j]``).
+
+..
+
+.. bpo: 39828
+.. date: 2020-03-05-00-57-49
+.. nonce: yWq9NJ
+.. section: Library
+
+Fix :mod:`json.tool` to catch :exc:`BrokenPipeError`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 13487
+.. date: 2020-03-04-16-10-59
+.. nonce: gqe4Fb
+.. section: Library
+
+Avoid a possible *"RuntimeError: dictionary changed size during iteration"*
+from :func:`inspect.getmodule` when it tried to loop through
+:attr:`sys.modules`.
+
+..
+
+.. bpo: 39674
+.. date: 2020-03-03-16-21-41
+.. nonce: HJVkD5
+.. section: Library
+
+Revert "bpo-37330: open() no longer accept 'U' in file mode". The "U" mode
+of open() is kept in Python 3.9 to ease transition from Python 2.7, but will
+be removed in Python 3.10.
+
+..
+
+.. bpo: 28577
+.. date: 2020-03-02-23-52-38
+.. nonce: EK91ae
+.. section: Library
+
+The hosts method on 32-bit prefix length IPv4Networks and 128-bit prefix
+IPv6Networks now returns a list containing the single Address instead of an
+empty list.
+
+..
+
+.. bpo: 39826
+.. date: 2020-03-02-15-15-01
+.. nonce: DglHk7
+.. section: Library
+
+Add getConnection method to logging HTTPHandler to enable custom
+connections.
+
+..
+
+.. bpo: 39763
+.. date: 2020-03-02-14-43-19
+.. nonce: 5a822c
+.. section: Library
+
+Reimplement :func:`distutils.spawn.spawn` function with the
+:mod:`subprocess` module.
+
+..
+
+.. bpo: 39794
+.. date: 2020-02-29-19-17-39
+.. nonce: 7VjatS
+.. section: Library
+
+Add --without-decimal-contextvar build option. This enables a thread-local
+rather than a coroutine local context.
+
+..
+
+.. bpo: 36144
+.. date: 2020-02-29-15-54-08
+.. nonce: 4GgTZs
+.. section: Library
+
+:class:`collections.defaultdict` now implements ``|`` (:pep:`584`).
+
+..
+
+.. bpo: 39517
+.. date: 2020-02-29-11-20-50
+.. nonce: voQZb8
+.. section: Library
+
+Fix runpy.run_path() when using pathlike objects
+
+..
+
+.. bpo: 39775
+.. date: 2020-02-28-16-42-16
+.. nonce: IuSvVb
+.. section: Library
+
+Change ``inspect.Signature.parameters`` back to ``collections.OrderedDict``.
+This was changed to ``dict`` in Python 3.9.0a4.
+
+..
+
+.. bpo: 39678
+.. date: 2020-02-28-12-59-30
+.. nonce: 3idfxM
+.. section: Library
+
+Refactor queue_manager in :class:`concurrent.futures.ProcessPoolExecutor` to
+make it easier to maintain.
+
+..
+
+.. bpo: 39764
+.. date: 2020-02-27-18-21-07
+.. nonce: wqPk68
+.. section: Library
+
+Fix AttributeError when calling get_stack on a PyAsyncGenObject Task
+
+..
+
+.. bpo: 39769
+.. date: 2020-02-27-00-40-21
+.. nonce: hJmxu4
+.. section: Library
+
+The :func:`compileall.compile_dir` function's *ddir* parameter and the
+compileall command line flag `-d` no longer write the wrong pathname to the
+generated pyc file for submodules beneath the root of the directory tree
+being compiled. This fixes a regression introduced with Python 3.5.
+
+..
+
+.. bpo: 36144
+.. date: 2020-02-25-09-28-06
+.. nonce: Rbvvi7
+.. section: Library
+
+:class:`types.MappingProxyType` objects now support the merge (``|``)
+operator from :pep:`584`.
+
+..
+
+.. bpo: 38691
+.. date: 2020-02-23-02-09-03
+.. nonce: oND8Sk
+.. section: Library
+
+The :mod:`importlib` module now ignores the :envvar:`PYTHONCASEOK`
+environment variable when the :option:`-E` or :option:`-I` command line
+options are being used.
+
+..
+
+.. bpo: 39719
+.. date: 2020-02-21-22-35-57
+.. nonce: 2jLy1C
+.. section: Library
+
+Remove :meth:`tempfile.SpooledTemporaryFile.softspace` as files no longer
+have the ``softspace`` attribute in Python 3. Patch by Shantanu.
+
+..
+
+.. bpo: 39667
+.. date: 2020-02-17-22-38-15
+.. nonce: QuzEHH
+.. section: Library
+
+Improve pathlib.Path compatibility on zipfile.Path and correct performance
+degradation as found in zipp 3.0.
+
+..
+
+.. bpo: 39638
+.. date: 2020-02-15-20-38-11
+.. nonce: wm_RS3
+.. section: Library
+
+Keep ASDL signatures in the docstrings for ``AST`` nodes. Patch by Batuhan
+Taskaya
+
+..
+
+.. bpo: 39639
+.. date: 2020-02-15-15-29-34
+.. nonce: 3mqJjm
+.. section: Library
+
+Deprecated ``ast.Suite`` node class because it's no longer used. Patch by
+Batuhan Taskaya.
+
+..
+
+.. bpo: 39609
+.. date: 2020-02-11-19-45-31
+.. nonce: dk40Uw
+.. section: Library
+
+Add thread_name_prefix to default asyncio executor
+
+..
+
+.. bpo: 39548
+.. date: 2020-02-06-05-33-52
+.. nonce: DF4FFe
+.. section: Library
+
+Fix handling of header in :class:`urllib.request.AbstractDigestAuthHandler`
+when the optional ``qop`` parameter is not present.
+
+..
+
+.. bpo: 39509
+.. date: 2020-02-01-00-03-06
+.. nonce: -YxUSf
+.. section: Library
+
+HTTP status codes ``103 EARLY_HINTS`` and ``425 TOO_EARLY`` are added to
+:class:`http.HTTPStatus`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39507
+.. date: 2020-01-31-14-24-05
+.. nonce: 3oln1a
+.. section: Library
+
+Adding HTTP status 418 "I'm a Teapot" to HTTPStatus in http library. Patch
+by Ross Rhodes.
+
+..
+
+.. bpo: 39495
+.. date: 2020-01-30-07-02-02
+.. nonce: 8LsIRN
+.. section: Library
+
+Remove default value from *attrs* parameter of
+:meth:`xml.etree.ElementTree.TreeBuilder.start` for consistency between
+Python and C implementations.
+
+..
+
+.. bpo: 38971
+.. date: 2019-12-20-16-06-28
+.. nonce: fKRYlF
+.. section: Library
+
+Open issue in the BPO indicated a desire to make the implementation of
+codecs.open() at parity with io.open(), which implements a try/except to
+assure file stream gets closed before an exception is raised.
+
+..
+
+.. bpo: 38641
+.. date: 2019-10-30-15-31-09
+.. nonce: HrTL9k
+.. section: Library
+
+Added starred expressions support to ``return`` and ``yield`` statements for
+``lib2to3``. Patch by Vlad Emelianov.
+
+..
+
+.. bpo: 37534
+.. date: 2019-08-20-00-02-37
+.. nonce: TvjAUi
+.. section: Library
+
+When using minidom module to generate XML documents the ability to add
+Standalone Document Declaration is added. All the changes are made to
+generate a document in compliance with Extensible Markup Language (XML) 1.0
+(Fifth Edition) W3C Recommendation (available here:
+https://www.w3.org/TR/xml/#sec-prolog-dtd).
+
+..
+
+.. bpo: 34788
+.. date: 2019-07-17-08-26-14
+.. nonce: pwV1OK
+.. section: Library
+
+Add support for scoped IPv6 addresses to :mod:`ipaddress`. Patch by
+Oleksandr Pavliuk.
+
+..
+
+.. bpo: 34822
+.. date: 2018-09-27-19-31-47
+.. nonce: EztBhL
+.. section: Library
+
+Simplified AST for subscription. Simple indices are now represented by their
+value, extended slices are represented as tuples. :mod:`ast` classes
+``Index`` and ``ExtSlice`` are considered deprecated and will be removed in
+future Python versions. In the meantime, ``Index(value)`` now returns a
+``value`` itself, ``ExtSlice(slices)`` returns ``Tuple(slices, Load())``.
+
+..
+
+.. bpo: 39868
+.. date: 2020-03-05-16-29-03
+.. nonce: JQoHhO
+.. section: Documentation
+
+Updated the Language Reference for :pep:`572`.
+
+..
+
+.. bpo: 13790
+.. date: 2020-02-28-14-39-25
+.. nonce: hvLaRI
+.. section: Documentation
+
+Change 'string' to 'specification' in format doc.
+
+..
+
+.. bpo: 17422
+.. date: 2020-02-27-17-35-27
+.. nonce: eS1hVh
+.. section: Documentation
+
+The language reference no longer restricts default class namespaces to dicts
+only.
+
+..
+
+.. bpo: 39530
+.. date: 2020-02-23-13-26-40
+.. nonce: _bCvzQ
+.. section: Documentation
+
+Fix misleading documentation about mixed-type numeric comparisons.
+
+..
+
+.. bpo: 39718
+.. date: 2020-02-21-22-05-20
+.. nonce: xtBoSi
+.. section: Documentation
+
+Update :mod:`token` documentation to reflect additions in Python 3.8
+
+..
+
+.. bpo: 39677
+.. date: 2020-02-18-14-28-31
+.. nonce: vNHqoX
+.. section: Documentation
+
+Changed operand name of **MAKE_FUNCTION** from *argc* to *flags* for module
+:mod:`dis`
+
+..
+
+.. bpo: 40019
+.. date: 2020-03-20-00-30-36
+.. nonce: zOqHpQ
+.. section: Tests
+
+test_gdb now skips tests if it detects that gdb failed to read debug
+information because the Python binary is optimized.
+
+..
+
+.. bpo: 27807
+.. date: 2020-03-18-16-04-33
+.. nonce: 9gKjET
+.. section: Tests
+
+``test_site.test_startup_imports()`` is now skipped if a path of
+:data:`sys.path` contains a ``.pth`` file.
+
+..
+
+.. bpo: 26067
+.. date: 2020-03-16-20-54-55
+.. nonce: m18_VV
+.. section: Tests
+
+Do not fail test_shutil test_chown test when uid or gid of user cannot be
+resolved to a name.
+
+..
+
+.. bpo: 39855
+.. date: 2020-03-04-23-03-01
+.. nonce: Ql5xv8
+.. section: Tests
+
+test_subprocess.test_user() now skips the test on an user name if the user
+name doesn't exist. For example, skip the test if the user "nobody" doesn't
+exist on Linux.
+
+..
+
+.. bpo: 39761
+.. date: 2020-03-03-15-56-07
+.. nonce: k10aGe
+.. section: Build
+
+Fix build with DTrace but without additional DFLAGS.
+
+..
+
+.. bpo: 39763
+.. date: 2020-03-02-14-44-09
+.. nonce: GGEwhH
+.. section: Build
+
+setup.py now uses a basic implementation of the :mod:`subprocess` module if
+the :mod:`subprocess` module is not available: before required C extension
+modules are built.
+
+..
+
+.. bpo: 1294959
+.. date: 2020-02-06-18-08-25
+.. nonce: AZPg4R
+.. section: Build
+
+Add ``--with-platlibdir`` option to the configure script: name of the
+platform-specific library directory, stored in the new
+:attr:`sys.platlibdir` attribute. It is used to build the path of
+platform-specific extension modules and the path of the standard library. It
+is equal to ``"lib"`` on most platforms. On Fedora and SuSE, it is equal to
+``"lib64"`` on 64-bit platforms. Patch by Jan Matějek, Matěj Cepl,
+Charalampos Stratakis and Victor Stinner.
+
+..
+
+.. bpo: 39930
+.. date: 2020-03-11-10-15-56
+.. nonce: LGHw1j
+.. section: Windows
+
+Ensures the required :file:`vcruntime140.dll` is included in install
+packages.
+
+..
+
+.. bpo: 39847
+.. date: 2020-03-04-17-05-11
+.. nonce: C3N2m3
+.. section: Windows
+
+Avoid hang when computer is hibernated whilst waiting for a mutex (for
+lock-related objects from :mod:`threading`) around 49-day uptime.
+
+..
+
+.. bpo: 38597
+.. date: 2020-03-01-15-04-54
+.. nonce: MnHdYl
+.. section: Windows
+
+:mod:`distutils` will no longer statically link :file:`vcruntime140.dll`
+when a redistributable version is unavailable. All future releases of
+CPython will include a copy of this DLL to ensure distributed extensions can
+continue to load.
+
+..
+
+.. bpo: 38380
+.. date: 2020-02-28-23-51-27
+.. nonce: TpOBCj
+.. section: Windows
+
+Update Windows builds to use SQLite 3.31.1
+
+..
+
+.. bpo: 39789
+.. date: 2020-02-28-22-46-09
+.. nonce: 67XRoP
+.. section: Windows
+
+Update Windows release build machines to Visual Studio 2019 (MSVC 14.2).
+
+..
+
+.. bpo: 34803
+.. date: 2020-02-25-18-43-34
+.. nonce: S3VcS0
+.. section: Windows
+
+Package for nuget.org now includes repository reference and bundled icon
+image.
+
+..
+
+.. bpo: 38380
+.. date: 2020-02-28-23-51-47
+.. nonce: u-ySyA
+.. section: macOS
+
+Update macOS builds to use SQLite 3.31.1
+
+..
+
+.. bpo: 27115
+.. date: 2020-03-09-02-45-12
+.. nonce: 8hSHMo
+.. section: IDLE
+
+For 'Go to Line', use a Query box subclass with IDLE standard behavior and
+improved error checking.
+
+..
+
+.. bpo: 39885
+.. date: 2020-03-08-14-27-36
+.. nonce: 29ERiR
+.. section: IDLE
+
+Since clicking to get an IDLE context menu moves the cursor, any text
+selection should be and now is cleared.
+
+..
+
+.. bpo: 39852
+.. date: 2020-03-06-01-55-14
+.. nonce: QjA1qF
+.. section: IDLE
+
+Edit "Go to line" now clears any selection, preventing accidental deletion.
+It also updates Ln and Col on the status bar.
+
+..
+
+.. bpo: 39781
+.. date: 2020-02-27-22-17-09
+.. nonce: bbYBeL
+.. section: IDLE
+
+Selecting code context lines no longer causes a jump.
+
+..
+
+.. bpo: 36184
+.. date: 2020-03-09-13-28-13
+.. nonce: BMPJ0D
+.. section: Tools/Demos
+
+Port python-gdb.py to FreeBSD. python-gdb.py now checks for "take_gil"
+function name to check if a frame tries to acquire the GIL, instead of
+checking for "pthread_cond_timedwait" which is specific to Linux and can be
+a different condition than the GIL.
+
+..
+
+.. bpo: 38080
+.. date: 2019-09-18-13-49-56
+.. nonce: Nbl7lF
+.. section: Tools/Demos
+
+Added support to fix ``getproxies`` in the :mod:`lib2to3.fixes.fix_urllib`
+module. Patch by José Roberto Meza Cabrera.
+
+..
+
+.. bpo: 40024
+.. date: 2020-03-20-18-41-33
+.. nonce: 9zHpve
+.. section: C API
+
+Add :c:func:`PyModule_AddType` helper function: add a type to a module.
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39946
+.. date: 2020-03-20-17-05-52
+.. nonce: 3NS-Ls
+.. section: C API
+
+Remove ``_PyRuntime.getframe`` hook and remove ``_PyThreadState_GetFrame``
+macro which was an alias to ``_PyRuntime.getframe``. They were only exposed
+by the internal C API. Remove also ``PyThreadFrameGetter`` type.
+
+..
+
+.. bpo: 39947
+.. date: 2020-03-20-14-55-09
+.. nonce: W7uCJ3
+.. section: C API
+
+Add :c:func:`PyThreadState_GetFrame` function: get the current frame of a
+Python thread state.
+
+..
+
+.. bpo: 37207
+.. date: 2020-03-14-01-56-03
+.. nonce: R3jaTy
+.. section: C API
+
+Add _PyArg_NoKwnames helper function. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 39947
+.. date: 2020-03-13-18-10-58
+.. nonce: gmEAaU
+.. section: C API
+
+Add :c:func:`PyThreadState_GetInterpreter`: get the interpreter of a Python
+thread state.
+
+..
+
+.. bpo: 39947
+.. date: 2020-03-13-17-43-00
+.. nonce: 1Cu_d2
+.. section: C API
+
+Add :c:func:`PyInterpreterState_Get` function to the limited C API.
+
+..
+
+.. bpo: 35370
+.. date: 2020-03-13-16-44-23
+.. nonce: sXRA-r
+.. section: C API
+
+If :c:func:`PySys_Audit` fails in :c:func:`PyEval_SetProfile` or
+:c:func:`PyEval_SetTrace`, log the error as an unraisable exception.
+
+..
+
+.. bpo: 39947
+.. date: 2020-03-13-00-15-19
+.. nonce: w3dIru
+.. section: C API
+
+Move the static inline function flavor of Py_EnterRecursiveCall() and
+Py_LeaveRecursiveCall() to the internal C API: they access PyThreadState
+attributes. The limited C API provides regular functions which hide
+implementation details.
+
+..
+
+.. bpo: 39947
+.. date: 2020-03-12-23-47-57
+.. nonce: -nCdFV
+.. section: C API
+
+Py_TRASHCAN_BEGIN_CONDITION and Py_TRASHCAN_END macro no longer access
+PyThreadState attributes, but call new private _PyTrash_begin() and
+_PyTrash_end() functions which hide implementation details.
+
+..
+
+.. bpo: 39884
+.. date: 2020-03-12-00-27-26
+.. nonce: CGOJBO
+.. section: C API
+
+:c:func:`PyDescr_NewMethod` and :c:func:`PyCFunction_NewEx` now include the
+method name in the SystemError "bad call flags" error message to ease debug.
+
+..
+
+.. bpo: 39877
+.. date: 2020-03-10-00-18-16
+.. nonce: GOYtIm
+.. section: C API
+
+Deprecated :c:func:`PyEval_InitThreads` and
+:c:func:`PyEval_ThreadsInitialized`. Calling :c:func:`PyEval_InitThreads`
+now does nothing.
+
+..
+
+.. bpo: 38249
+.. date: 2020-03-09-20-27-19
+.. nonce: IxYbQy
+.. section: C API
+
+:c:macro:`Py_UNREACHABLE` is now implemented with
+``__builtin_unreachable()`` and analogs in release mode.
+
+..
+
+.. bpo: 38643
+.. date: 2020-03-08-22-56-22
+.. nonce: k2ixx6
+.. section: C API
+
+:c:func:`PyNumber_ToBase` now raises a :exc:`SystemError` instead of
+crashing when called with invalid base.
+
+..
+
+.. bpo: 39882
+.. date: 2020-03-06-23-56-04
+.. nonce: Iqhcqm
+.. section: C API
+
+The :c:func:`Py_FatalError` function is replaced with a macro which logs
+automatically the name of the current function, unless the
+``Py_LIMITED_API`` macro is defined.
+
+..
+
+.. bpo: 39824
+.. date: 2020-03-02-11-29-45
+.. nonce: 71_ZMn
+.. section: C API
+
+Extension modules: :c:member:`~PyModuleDef.m_traverse`,
+:c:member:`~PyModuleDef.m_clear` and :c:member:`~PyModuleDef.m_free`
+functions of :c:type:`PyModuleDef` are no longer called if the module state
+was requested but is not allocated yet. This is the case immediately after
+the module is created and before the module is executed
+(:c:data:`Py_mod_exec` function). More precisely, these functions are not
+called if :c:member:`~PyModuleDef.m_size` is greater than 0 and the module
+state (as returned by :c:func:`PyModule_GetState`) is ``NULL``.
+
+Extension modules without module state (``m_size <= 0``) are not affected.
+
+..
+
+.. bpo: 38913
+.. date: 2020-02-25-20-10-34
+.. nonce: siF1lS
+.. section: C API
+
+Fixed segfault in ``Py_BuildValue()`` called with a format containing "#"
+and undefined PY_SSIZE_T_CLEAN whwn an exception is set.
+
+..
+
+.. bpo: 38500
+.. date: 2019-11-22-14-06-28
+.. nonce: nPEdjH
+.. section: C API
+
+Add a private API to get and set the frame evaluation function: add
+:c:func:`_PyInterpreterState_GetEvalFrameFunc` and
+:c:func:`_PyInterpreterState_SetEvalFrameFunc` C functions. The
+:c:type:`_PyFrameEvalFunction` function type now takes a *tstate* parameter.
--- /dev/null
+.. bpo: 40121
+.. date: 2020-03-30-23-16-25
+.. nonce: p2LIio
+.. release date: 2020-04-27
+.. section: Security
+
+Fixes audit events raised on creating a new socket.
+
+..
+
+.. bpo: 39073
+.. date: 2020-03-15-01-28-36
+.. nonce: 6Szd3i
+.. section: Security
+
+Disallow CR or LF in email.headerregistry.Address arguments to guard against
+header injection attacks.
+
+..
+
+.. bpo: 39503
+.. date: 2020-01-30-16-15-29
+.. nonce: B299Yq
+.. section: Security
+
+CVE-2020-8492: The :class:`~urllib.request.AbstractBasicAuthHandler` class
+of the :mod:`urllib.request` module uses an inefficient regular expression
+which can be exploited by an attacker to cause a denial of service. Fix the
+regex to prevent the catastrophic backtracking. Vulnerability reported by
+Ben Caller and Matt Schwager.
+
+..
+
+.. bpo: 40313
+.. date: 2020-04-20-23-58-35
+.. nonce: USVRW8
+.. section: Core and Builtins
+
+Improve the performance of bytes.hex().
+
+..
+
+.. bpo: 40334
+.. date: 2020-04-20-14-06-19
+.. nonce: CTLGEp
+.. section: Core and Builtins
+
+Switch to a new parser, based on PEG. For more details see PEP 617. To
+temporarily switch back to the old parser, use ``-X oldparser`` or
+``PYTHONOLDPARSER=1``. In Python 3.10 we will remove the old parser
+completely, including the ``parser`` module (already deprecated) and
+anything that depends on it.
+
+..
+
+.. bpo: 40267
+.. date: 2020-04-14-18-54-50
+.. nonce: Q2N6Bw
+.. section: Core and Builtins
+
+Fix the tokenizer to display the correct error message, when there is a
+SyntaxError on the last input character and no newline follows. It used to
+be `unexpected EOF while parsing`, while it should be `invalid syntax`.
+
+..
+
+.. bpo: 39522
+.. date: 2020-04-14-18-47-00
+.. nonce: uVeIV_
+.. section: Core and Builtins
+
+Correctly unparse explicit ``u`` prefix for strings when postponed
+evaluation for annotations activated. Patch by Batuhan Taskaya.
+
+..
+
+.. bpo: 40246
+.. date: 2020-04-11-17-52-03
+.. nonce: vXPze5
+.. section: Core and Builtins
+
+Report a specialized error message, `invalid string prefix`, when the
+tokenizer encounters a string with an invalid prefix.
+
+..
+
+.. bpo: 40082
+.. date: 2020-04-08-22-33-24
+.. nonce: WI3-lu
+.. section: Core and Builtins
+
+Fix the signal handler: it now always uses the main interpreter, rather than
+trying to get the current Python thread state.
+
+..
+
+.. bpo: 37388
+.. date: 2020-04-07-15-44-29
+.. nonce: stlxBq
+.. section: Core and Builtins
+
+str.encode() and str.decode() no longer check the encoding and errors in
+development mode or in debug mode during Python finalization. The codecs
+machinery can no longer work on very late calls to str.encode() and
+str.decode().
+
+..
+
+.. bpo: 40077
+.. date: 2020-04-04-12-43-19
+.. nonce: m15TTX
+.. section: Core and Builtins
+
+Fix possible refleaks in :mod:`_json`, memo of PyScannerObject should be
+traversed.
+
+..
+
+.. bpo: 37207
+.. date: 2020-04-02-00-25-19
+.. nonce: ZTPmKJ
+.. section: Core and Builtins
+
+Speed up calls to ``dict()`` by using the :pep:`590` ``vectorcall`` calling
+convention.
+
+..
+
+.. bpo: 40141
+.. date: 2020-04-01-21-50-37
+.. nonce: 8fCRVj
+.. section: Core and Builtins
+
+Add column and line information to ``ast.keyword`` nodes. Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-04-01-00-08-18
+.. nonce: bhGWam
+.. section: Core and Builtins
+
+Port :mod:`resource` to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-31-22-15-04
+.. nonce: 8Ir1a0
+.. section: Core and Builtins
+
+Port :mod:`math` to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-31-21-12-27
+.. nonce: S2nkF3
+.. section: Core and Builtins
+
+Port _uuid module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 40077
+.. date: 2020-03-27-01-11-08
+.. nonce: wT002V
+.. section: Core and Builtins
+
+Convert json module to use :c:func:`PyType_FromSpec`.
+
+..
+
+.. bpo: 40067
+.. date: 2020-03-25-20-34-01
+.. nonce: 0bFda2
+.. section: Core and Builtins
+
+Improve the error message for multiple star expressions in an assignment.
+Patch by Furkan Onder
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-24-22-26-26
+.. nonce: AB38ot
+.. section: Core and Builtins
+
+Port _functools module to multiphase initialization (PEP 489). Patch by
+Paulo Henrique Silva.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-24-22-17-12
+.. nonce: jWaMRV
+.. section: Core and Builtins
+
+Port operator module to multiphase initialization (PEP 489). Patch by Paulo
+Henrique Silva.
+
+..
+
+.. bpo: 20526
+.. date: 2020-03-23-18-08-34
+.. nonce: NHNZIv
+.. section: Core and Builtins
+
+Fix :c:func:`PyThreadState_Clear()`. ``PyThreadState.frame`` is a borrowed
+reference, not a strong reference: ``PyThreadState_Clear()`` must not call
+``Py_CLEAR(tstate->frame)``.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-22-01-01-41
+.. nonce: gR7Igp
+.. section: Core and Builtins
+
+Port time module to multiphase initialization (:pep:`489`). Patch by Paulo
+Henrique Silva.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-03-20-13-42-35
+.. nonce: bhIu5M
+.. section: Core and Builtins
+
+Port _weakref extension module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 40020
+.. date: 2020-03-19-21-53-41
+.. nonce: n-26G7
+.. section: Core and Builtins
+
+Fix a leak and subsequent crash in parsetok.c caused by realloc misuse on a
+rare codepath.
+
+..
+
+.. bpo: 39939
+.. date: 2020-03-11-19-17-36
+.. nonce: NwCnAM
+.. section: Core and Builtins
+
+Added str.removeprefix and str.removesuffix methods and corresponding bytes,
+bytearray, and collections.UserString methods to remove affixes from a
+string if present. See :pep:`616` for a full description. Patch by Dennis
+Sweeney.
+
+..
+
+.. bpo: 39481
+.. date: 2020-01-28-17-19-18
+.. nonce: rqSeGl
+.. section: Core and Builtins
+
+Implement PEP 585. This supports list[int], tuple[str, ...] etc.
+
+..
+
+.. bpo: 32894
+.. date: 2019-12-01-21-36-49
+.. nonce: 5g_UQr
+.. section: Core and Builtins
+
+Support unparsing of infinity numbers in postponed annotations. Patch by
+Batuhan Taşkaya.
+
+..
+
+.. bpo: 37207
+.. date: 2019-06-09-10-54-31
+.. nonce: bLjgLS
+.. section: Core and Builtins
+
+Speed up calls to ``list()`` by using the :pep:`590` ``vectorcall`` calling
+convention. Patch by Mark Shannon.
+
+..
+
+.. bpo: 40398
+.. date: 2020-04-26-22-25-36
+.. nonce: OdXnR3
+.. section: Library
+
+:func:`typing.get_args` now always returns an empty tuple for special
+generic aliases.
+
+..
+
+.. bpo: 40396
+.. date: 2020-04-26-19-07-40
+.. nonce: Fn-is1
+.. section: Library
+
+Functions :func:`typing.get_origin`, :func:`typing.get_args` and
+:func:`typing.get_type_hints` support now generic aliases like
+``list[int]``.
+
+..
+
+.. bpo: 38061
+.. date: 2020-04-24-01-55-00
+.. nonce: XmULB3
+.. section: Library
+
+Optimize the :mod:`subprocess` module on FreeBSD using ``closefrom()``. A
+single ``close(fd)`` syscall is cheap, but when ``sysconf(_SC_OPEN_MAX)`` is
+high, the loop calling ``close(fd)`` on each file descriptor can take
+several milliseconds.
+
+The workaround on FreeBSD to improve performance was to load and mount the
+fdescfs kernel module, but this is not enabled by default.
+
+Initial patch by Ed Maste (emaste), Conrad Meyer (cem), Kyle Evans (kevans)
+and Kubilay Kocak (koobs):
+https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242274
+
+..
+
+.. bpo: 38061
+.. date: 2020-04-24-01-27-08
+.. nonce: cdlkMz
+.. section: Library
+
+On FreeBSD, ``os.closerange(fd_low, fd_high)`` now calls
+``closefrom(fd_low)`` if *fd_high* is greater than or equal to
+``sysconf(_SC_OPEN_MAX)``.
+
+Initial patch by Ed Maste (emaste), Conrad Meyer (cem), Kyle Evans (kevans)
+and Kubilay Kocak (koobs):
+https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242274
+
+..
+
+.. bpo: 40360
+.. date: 2020-04-22-20-55-17
+.. nonce: Er8sv-
+.. section: Library
+
+The :mod:`lib2to3` module is pending deprecation due to :pep:`617`.
+
+..
+
+.. bpo: 40138
+.. date: 2020-04-22-00-05-10
+.. nonce: i_oGqa
+.. section: Library
+
+Fix the Windows implementation of :func:`os.waitpid` for exit code larger
+than ``INT_MAX >> 8``. The exit status is now interpreted as an unsigned
+number.
+
+..
+
+.. bpo: 39942
+.. date: 2020-04-20-20-16-02
+.. nonce: NvGnTc
+.. section: Library
+
+Set "__main__" as the default module name when "__name__" is missing in
+:class:`typing.TypeVar`. Patch by Weipeng Hong.
+
+..
+
+.. bpo: 40275
+.. date: 2020-04-20-19-06-55
+.. nonce: 9UcN2g
+.. section: Library
+
+The :mod:`logging` package is now imported lazily in :mod:`unittest` only
+when the :meth:`~unittest.TestCase.assertLogs` assertion is used.
+
+..
+
+.. bpo: 40275
+.. date: 2020-04-20-18-50-25
+.. nonce: Ofk6J8
+.. section: Library
+
+The :mod:`asyncio` package is now imported lazily in :mod:`unittest` only
+when the :class:`~unittest.IsolatedAsyncioTestCase` class is used.
+
+..
+
+.. bpo: 40330
+.. date: 2020-04-19-17-31-29
+.. nonce: DGjoIS
+.. section: Library
+
+In :meth:`ShareableList.__setitem__`, check the size of a new string item
+after encoding it to utf-8, not before.
+
+..
+
+.. bpo: 40148
+.. date: 2020-04-19-14-16-43
+.. nonce: pDZR6V
+.. section: Library
+
+Added :meth:`pathlib.Path.with_stem()` to create a new Path with the stem
+replaced.
+
+..
+
+.. bpo: 40325
+.. date: 2020-04-18-19-40-00
+.. nonce: KWSvix
+.. section: Library
+
+Deprecated support for set objects in random.sample().
+
+..
+
+.. bpo: 40257
+.. date: 2020-04-18-10-52-15
+.. nonce: lv4WTq
+.. section: Library
+
+Improved help for the :mod:`typing` module. Docstrings are now shown for all
+special forms and special generic aliases (like ``Union`` and ``List``).
+Using ``help()`` with generic alias like ``List[int]`` will show the help
+for the correspondent concrete type (``list`` in this case).
+
+..
+
+.. bpo: 40257
+.. date: 2020-04-15-19-34-11
+.. nonce: ux8FUr
+.. section: Library
+
+func:`inspect.getdoc` no longer returns docstring inherited from the type of
+the object or from parent class if it is a class if it is not defined in the
+object itself. In :mod:`pydoc` the documentation string is now shown not
+only for class, function, method etc, but for any object that has its own
+``__doc__`` attribute.
+
+..
+
+.. bpo: 40287
+.. date: 2020-04-15-17-21-48
+.. nonce: -mkEJH
+.. section: Library
+
+Fixed ``SpooledTemporaryFile.seek()`` to return the position.
+
+..
+
+.. bpo: 40290
+.. date: 2020-04-15-16-43-48
+.. nonce: eqCMGJ
+.. section: Library
+
+Added zscore() to statistics.NormalDist().
+
+..
+
+.. bpo: 40282
+.. date: 2020-04-15-10-23-52
+.. nonce: rIYJmu
+.. section: Library
+
+Allow ``random.getrandbits(0)`` to succeed and to return 0.
+
+..
+
+.. bpo: 40286
+.. date: 2020-04-15-00-39-25
+.. nonce: ai80FA
+.. section: Library
+
+Add :func:`random.randbytes` function and :meth:`random.Random.randbytes`
+method to generate random bytes.
+
+..
+
+.. bpo: 40277
+.. date: 2020-04-14-21-53-18
+.. nonce: NknSaf
+.. section: Library
+
+:func:`collections.namedtuple` now provides a human-readable repr for its
+field accessors.
+
+..
+
+.. bpo: 40270
+.. date: 2020-04-14-16-18-49
+.. nonce: XVJzeG
+.. section: Library
+
+The included copy of sqlite3 on Windows is now compiled with the json
+extension. This allows the use of functions such as ``json_object``.
+
+..
+
+.. bpo: 29255
+.. date: 2020-04-14-11-31-07
+.. nonce: 4EcyIN
+.. section: Library
+
+Wait in `KqueueSelector.select` when no fds are registered
+
+..
+
+.. bpo: 40260
+.. date: 2020-04-12-21-18-56
+.. nonce: F6VWaE
+.. section: Library
+
+Ensure :mod:`modulefinder` uses :func:`io.open_code` and respects coding
+comments.
+
+..
+
+.. bpo: 40234
+.. date: 2020-04-10-16-13-47
+.. nonce: tar4d_
+.. section: Library
+
+Allow again to spawn daemon threads in subinterpreters (revert change which
+denied them).
+
+..
+
+.. bpo: 39207
+.. date: 2020-04-10-01-24-58
+.. nonce: 2dE5Ox
+.. section: Library
+
+Workers in :class:`~concurrent.futures.ProcessPoolExecutor` are now spawned
+on demand, only when there are no available idle workers to reuse. This
+optimizes startup overhead and reduces the amount of lost CPU time to idle
+workers. Patch by Kyle Stanley.
+
+..
+
+.. bpo: 40091
+.. date: 2020-04-07-23-26-25
+.. nonce: 5M9AW5
+.. section: Library
+
+Fix a hang at fork in the logging module: the new private _at_fork_reinit()
+method is now used to reinitialize locks at fork in the child process.
+
+..
+
+.. bpo: 40149
+.. date: 2020-04-07-18-06-38
+.. nonce: mMU2iu
+.. section: Library
+
+Implement traverse and clear slots in _abc._abc_data type.
+
+..
+
+.. bpo: 40208
+.. date: 2020-04-06-20-09-33
+.. nonce: 3rO_q7
+.. section: Library
+
+Remove deprecated :meth:`symtable.SymbolTable.has_exec`.
+
+..
+
+.. bpo: 40196
+.. date: 2020-04-06-11-05-13
+.. nonce: Jqowse
+.. section: Library
+
+Fix a bug in the :mod:`symtable` module that was causing incorrectly report
+global variables as local. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 40190
+.. date: 2020-04-05-02-58-17
+.. nonce: HF3OWo
+.. section: Library
+
+Add support for ``_SC_AIX_REALMEM`` to :func:`posix.sysconf`.
+
+..
+
+.. bpo: 40182
+.. date: 2020-04-04-23-44-09
+.. nonce: Bf_kFN
+.. section: Library
+
+Removed the ``_field_types`` attribute of the :class:`typing.NamedTuple`
+class.
+
+..
+
+.. bpo: 36517
+.. date: 2020-04-04-17-49-39
+.. nonce: Ilj1IJ
+.. section: Library
+
+Multiple inheritance with :class:`typing.NamedTuple` now raises an error
+instead of silently ignoring other types.
+
+..
+
+.. bpo: 40126
+.. date: 2020-04-04-00-47-40
+.. nonce: Y-bTNP
+.. section: Library
+
+Fixed reverting multiple patches in unittest.mock. Patcher's ``__exit__()``
+is now never called if its ``__enter__()`` is failed. Returning true from
+``__exit__()`` silences now the exception.
+
+..
+
+.. bpo: 40094
+.. date: 2020-04-02-01-13-28
+.. nonce: AeZ34K
+.. section: Library
+
+CGIHTTPRequestHandler of http.server now logs the CGI script exit code,
+rather than the CGI script exit status of os.waitpid(). For example, if the
+script is killed by signal 11, it now logs: "CGI script exit code -11."
+
+..
+
+.. bpo: 40108
+.. date: 2020-03-31-01-11-20
+.. nonce: EGDVQ_
+.. section: Library
+
+Improve the error message when triying to import a module using :mod:`runpy`
+and incorrently use the ".py" extension at the end of the module name. Patch
+by Pablo Galindo.
+
+..
+
+.. bpo: 40094
+.. date: 2020-03-28-18-25-49
+.. nonce: v-wQIU
+.. section: Library
+
+Add :func:`os.waitstatus_to_exitcode` function: convert a wait status to an
+exit code.
+
+..
+
+.. bpo: 40089
+.. date: 2020-03-27-17-22-34
+.. nonce: -lFsD0
+.. section: Library
+
+Fix threading._after_fork(): if fork was not called by a thread spawned by
+threading.Thread, threading._after_fork() now creates a _MainThread instance
+for _main_thread, instead of a _DummyThread instance.
+
+..
+
+.. bpo: 40089
+.. date: 2020-03-27-16-54-29
+.. nonce: VTq_8s
+.. section: Library
+
+Add a private ``_at_fork_reinit()`` method to :class:`_thread.Lock`,
+:class:`_thread.RLock`, :class:`threading.RLock` and
+:class:`threading.Condition` classes: reinitialize the lock at fork in the
+child process, reset the lock to the unlocked state. Rename also the private
+``_reset_internal_locks()`` method of :class:`threading.Event` to
+``_at_fork_reinit()``.
+
+..
+
+.. bpo: 25780
+.. date: 2020-03-27-08-57-46
+.. nonce: kIjVge
+.. section: Library
+
+Expose :data:`~socket.CAN_RAW_JOIN_FILTERS` in the :mod:`socket` module.
+
+..
+
+.. bpo: 39503
+.. date: 2020-03-25-16-02-16
+.. nonce: YmMbYn
+.. section: Library
+
+:class:`~urllib.request.AbstractBasicAuthHandler` of :mod:`urllib.request`
+now parses all WWW-Authenticate HTTP headers and accepts multiple challenges
+per header: use the realm of the first Basic challenge.
+
+..
+
+.. bpo: 39812
+.. date: 2020-03-25-00-35-48
+.. nonce: rIKnms
+.. section: Library
+
+Removed daemon threads from :mod:`concurrent.futures` by adding an internal
+`threading._register_atexit()`, which calls registered functions prior to
+joining all non-daemon threads. This allows for compatibility with
+subinterpreters, which don't support daemon threads.
+
+..
+
+.. bpo: 40050
+.. date: 2020-03-24-16-17-20
+.. nonce: 6GrOlz
+.. section: Library
+
+Fix ``importlib._bootstrap_external``: avoid creating a new ``winreg``
+builtin module if it's already available in :data:`sys.modules`, and remove
+redundant imports.
+
+..
+
+.. bpo: 40014
+.. date: 2020-03-23-17-52-00
+.. nonce: Ya70VG
+.. section: Library
+
+Fix ``os.getgrouplist()``: if ``getgrouplist()`` function fails because the
+group list is too small, retry with a larger group list. On failure, the
+glibc implementation of ``getgrouplist()`` sets ``ngroups`` to the total
+number of groups. For other implementations, double the group list size.
+
+..
+
+.. bpo: 40017
+.. date: 2020-03-21-00-46-18
+.. nonce: HFpHZS
+.. section: Library
+
+Add :data:`time.CLOCK_TAI` constant if the operating system support it.
+
+..
+
+.. bpo: 40016
+.. date: 2020-03-19-19-40-27
+.. nonce: JWtxqJ
+.. section: Library
+
+In re docstring, clarify the relationship between inline and argument
+compile flags.
+
+..
+
+.. bpo: 39953
+.. date: 2020-03-19-16-33-03
+.. nonce: yy5lC_
+.. section: Library
+
+Update internal table of OpenSSL error codes in the ``ssl`` module.
+
+..
+
+.. bpo: 36144
+.. date: 2020-03-18-14-51-41
+.. nonce: lQm_RK
+.. section: Library
+
+Added :pep:`584` operators to :class:`weakref.WeakValueDictionary`.
+
+..
+
+.. bpo: 36144
+.. date: 2020-03-18-14-02-58
+.. nonce: ooyn6Z
+.. section: Library
+
+Added :pep:`584` operators to :class:`weakref.WeakKeyDictionary`.
+
+..
+
+.. bpo: 38891
+.. date: 2020-03-15-08-06-05
+.. nonce: 56Yokh
+.. section: Library
+
+Fix linear runtime behaviour of the `__getitem__` and `__setitem__` methods
+in :class:`multiprocessing.shared_memory.ShareableList`. This avoids
+quadratic performance when iterating a `ShareableList`. Patch by Thomas
+Krennwallner.
+
+..
+
+.. bpo: 39682
+.. date: 2020-03-08-11-00-01
+.. nonce: AxXZNz
+.. section: Library
+
+Remove undocumented support for *closing* a `pathlib.Path` object via its
+context manager. The context manager magic methods remain, but they are now
+a no-op, making `Path` objects immutable.
+
+..
+
+.. bpo: 36144
+.. date: 2020-03-07-11-26-08
+.. nonce: FG9jqy
+.. section: Library
+
+Added :pep:`584` operators (``|`` and ``|=``) to
+:class:`collections.ChainMap`.
+
+..
+
+.. bpo: 39011
+.. date: 2020-02-12-01-48-51
+.. nonce: hGve_t
+.. section: Library
+
+Normalization of line endings in ElementTree attributes was removed, as line
+endings which were replaced by entity numbers should be preserved in
+original form.
+
+..
+
+.. bpo: 38410
+.. date: 2019-10-09-08-14-25
+.. nonce: _YyoMV
+.. section: Library
+
+Properly handle :func:`sys.audit` failures in
+:func:`sys.set_asyncgen_hooks`.
+
+..
+
+.. bpo: 36541
+.. date: 2019-06-18-19-38-27
+.. nonce: XI8mi1
+.. section: Library
+
+lib2to3 now recognizes named assignment expressions (the walrus operator,
+``:=``)
+
+..
+
+.. bpo: 35967
+.. date: 2019-04-14-14-11-07
+.. nonce: KUMT9E
+.. section: Library
+
+In platform, delay the invocation of 'uname -p' until the processor
+attribute is requested.
+
+..
+
+.. bpo: 35113
+.. date: 2018-11-03-16-18-20
+.. nonce: vwvWKG
+.. section: Library
+
+:meth:`inspect.getsource` now returns correct source code for inner class
+with same name as module level class. Decorators are also returned as part
+of source of the class. Patch by Karthikeyan Singaravelan.
+
+..
+
+.. bpo: 33262
+.. date: 2018-04-17-13-23-29
+.. nonce: vHC7YQ
+.. section: Library
+
+Deprecate passing None as an argument for :func:`shlex.split()`'s ``s``
+parameter. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 31758
+.. date: 2017-10-14-21-02-40
+.. nonce: 563ZZb
+.. section: Library
+
+Prevent crashes when using an uninitialized ``_elementtree.XMLParser``
+object. Patch by Oren Milman.
+
+..
+
+.. bpo: 27635
+.. date: 2020-04-01-00-27-03
+.. nonce: VwxUty
+.. section: Documentation
+
+The pickle documentation incorrectly claimed that ``__new__`` isn't called
+by default when unpickling.
+
+..
+
+.. bpo: 39879
+.. date: 2020-03-16-18-12-02
+.. nonce: CnQ7Cv
+.. section: Documentation
+
+Updated :ref:`datamodel` docs to include :func:`dict` insertion order
+preservation. Patch by Furkan Onder and Samy Lahfa.
+
+..
+
+.. bpo: 38387
+.. date: 2019-10-06-23-44-15
+.. nonce: fZoq0S
+.. section: Documentation
+
+Document :c:macro:`PyDoc_STRVAR` macro in the C-API reference.
+
+..
+
+.. bpo: 13743
+.. date: 2019-09-25-23-20-55
+.. nonce: 5ToLDy
+.. section: Documentation
+
+Some methods within xml.dom.minidom.Element class are now better documented.
+
+..
+
+.. bpo: 31904
+.. date: 2020-04-09-16-29-18
+.. nonce: ej348T
+.. section: Tests
+
+Set expected default encoding in test_c_locale_coercion.py for VxWorks RTOS.
+
+..
+
+.. bpo: 40162
+.. date: 2020-04-03-02-40-16
+.. nonce: v3pQW_
+.. section: Tests
+
+Update Travis CI configuration to OpenSSL 1.1.1f.
+
+..
+
+.. bpo: 40146
+.. date: 2020-04-02-02-14-37
+.. nonce: J-Yo9G
+.. section: Tests
+
+Update OpenSSL to 1.1.1f in Azure Pipelines.
+
+..
+
+.. bpo: 40094
+.. date: 2020-03-31-18-57-52
+.. nonce: m3fTJe
+.. section: Tests
+
+Add :func:`test.support.wait_process` function.
+
+..
+
+.. bpo: 40003
+.. date: 2020-03-31-16-07-15
+.. nonce: SOruLY
+.. section: Tests
+
+``test.bisect_cmd`` now copies Python command line options like ``-O`` or
+``-W``. Moreover, emit a warning if ``test.bisect_cmd`` is used with
+``-w``/``--verbose2`` option.
+
+..
+
+.. bpo: 39380
+.. date: 2020-03-22-20-00-04
+.. nonce: ZXlRQU
+.. section: Tests
+
+Add the encoding in :class:`ftplib.FTP` and :class:`ftplib.FTP_TLS` to the
+constructor as keyword-only and change the default from ``latin-1`` to
+``utf-8`` to follow :rfc:`2640`.
+
+..
+
+.. bpo: 39793
+.. date: 2020-02-29-12-58-17
+.. nonce: Og2SUN
+.. section: Tests
+
+Use the same domain when testing ``make_msgid``. Patch by Batuhan Taskaya.
+
+..
+
+.. bpo: 1812
+.. date: 2019-11-25-21-46-47
+.. nonce: sAbTbY
+.. section: Tests
+
+Fix newline handling in doctest.testfile when loading from a package whose
+loader has a get_data method. Patch by Peter Donis.
+
+..
+
+.. bpo: 38360
+.. date: 2020-04-22-02-33-54
+.. nonce: 74C68u
+.. section: Build
+
+Support single-argument form of macOS -isysroot flag.
+
+..
+
+.. bpo: 40158
+.. date: 2020-04-03-17-54-33
+.. nonce: MWUTs4
+.. section: Build
+
+Fix CPython MSBuild Properties in NuGet Package (build/native/python.props)
+
+..
+
+.. bpo: 38527
+.. date: 2020-03-28-10-43-09
+.. nonce: fqCRgD
+.. section: Build
+
+Fix configure check on Solaris for "float word ordering": sometimes, the
+correct "grep" command was not being used. Patch by Arnon Yaari.
+
+..
+
+.. bpo: 40164
+.. date: 2020-04-04-13-13-44
+.. nonce: SPrSn5
+.. section: Windows
+
+Updates Windows to OpenSSL 1.1.1f
+
+..
+
+.. bpo: 8901
+.. date: 2020-01-24-09-15-41
+.. nonce: hVnhGO
+.. section: Windows
+
+Ignore the Windows registry when the ``-E`` option is used.
+
+..
+
+.. bpo: 38329
+.. date: 2020-04-22-03-39-22
+.. nonce: H0a8JV
+.. section: macOS
+
+python.org macOS installers now update the Current version symlink of
+/Library/Frameworks/Python.framework/Versions for 3.9 installs. Previously,
+Current was only updated for Python 2.x installs. This should make it easier
+to embed Python 3 into other macOS applications.
+
+..
+
+.. bpo: 40164
+.. date: 2020-04-21-19-46-35
+.. nonce: 6HA6IC
+.. section: macOS
+
+Update macOS installer builds to use OpenSSL 1.1.1g.
+
+..
+
+.. bpo: 38439
+.. date: 2019-12-05-14-20-53
+.. nonce: j_L2PI
+.. section: IDLE
+
+Add a 256×256 pixel IDLE icon to support more modern environments. Created
+by Andrew Clover. Delete the unused macOS idle.icns icon file.
+
+..
+
+.. bpo: 38689
+.. date: 2019-11-14-12-59-19
+.. nonce: Lgfxva
+.. section: IDLE
+
+IDLE will no longer freeze when inspect.signature fails when fetching a
+calltip.
+
+..
+
+.. bpo: 40385
+.. date: 2020-04-24-21-08-19
+.. nonce: nWIQdq
+.. section: Tools/Demos
+
+Removed the checkpyc.py tool. Please see compileall without force mode as a
+potential alternative.
+
+..
+
+.. bpo: 40179
+.. date: 2020-04-04-19-35-22
+.. nonce: u9FH10
+.. section: Tools/Demos
+
+Fixed translation of ``#elif`` in Argument Clinic.
+
+..
+
+.. bpo: 40094
+.. date: 2020-04-02-01-22-21
+.. nonce: 1XQQF6
+.. section: Tools/Demos
+
+Fix ``which.py`` script exit code: it now uses
+:func:`os.waitstatus_to_exitcode` to convert :func:`os.system` exit status
+into an exit code.
+
+..
+
+.. bpo: 40241
+.. date: 2020-04-13-02-56-24
+.. nonce: _FOf7E
+.. section: C API
+
+Move the :c:type:`PyGC_Head` structure to the internal C API.
+
+..
+
+.. bpo: 40170
+.. date: 2020-04-11-06-12-44
+.. nonce: cmM9oK
+.. section: C API
+
+Convert :c:func:`PyObject_IS_GC` macro to a function to hide implementation
+details.
+
+..
+
+.. bpo: 40241
+.. date: 2020-04-10-19-43-04
+.. nonce: Xm3w-1
+.. section: C API
+
+Add the functions :c:func:`PyObject_GC_IsTracked` and
+:c:func:`PyObject_GC_IsFinalized` to the public API to allow to query if
+Python objects are being currently tracked or have been already finalized by
+the garbage collector respectively. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 40170
+.. date: 2020-04-05-00-37-34
+.. nonce: Seuh3D
+.. section: C API
+
+The :c:func:`PyObject_NEW` macro becomes an alias to the
+:c:func:`PyObject_New` macro, and the :c:func:`PyObject_NEW_VAR` macro
+becomes an alias to the :c:func:`PyObject_NewVar` macro, to hide
+implementation details. They no longer access directly the
+:c:member:`PyTypeObject.tp_basicsize` member.
+
+..
+
+.. bpo: 40170
+.. date: 2020-04-05-00-21-38
+.. nonce: Tx0vy6
+.. section: C API
+
+:c:func:`PyType_HasFeature` now always calls :c:func:`PyType_GetFlags` to
+hide implementation details. Previously, it accessed directly the
+:c:member:`PyTypeObject.tp_flags` member when the limited C API was not
+used.
+
+..
+
+.. bpo: 40170
+.. date: 2020-04-05-00-10-45
+.. nonce: 6nFYbY
+.. section: C API
+
+Convert the :c:func:`PyObject_GET_WEAKREFS_LISTPTR` macro to a function to
+hide implementation details: the macro accessed directly to the
+:c:member:`PyTypeObject.tp_weaklistoffset` member.
+
+..
+
+.. bpo: 40170
+.. date: 2020-04-05-00-02-13
+.. nonce: IFsGZ-
+.. section: C API
+
+Convert :c:func:`PyObject_CheckBuffer` macro to a function to hide
+implementation details: the macro accessed directly the
+:c:member:`PyTypeObject.tp_as_buffer` member.
+
+..
+
+.. bpo: 40170
+.. date: 2020-04-04-23-51-59
+.. nonce: uXQ701
+.. section: C API
+
+Always declare :c:func:`PyIndex_Check` as an opaque function to hide
+implementation details: remove ``PyIndex_Check()`` macro. The macro accessed
+directly the :c:member:`PyTypeObject.tp_as_number` member.
+
+..
+
+.. bpo: 39947
+.. date: 2020-03-25-19-44-55
+.. nonce: 2OxvPt
+.. section: C API
+
+Add :c:func:`PyThreadState_GetID` function: get the unique identifier of a
+Python thread state.
--- /dev/null
+.. bpo: 40501
+.. date: 2020-05-06-00-41-11
+.. nonce: _61wv_
+.. release date: 2020-05-19
+.. section: Security
+
+:mod:`uuid` no longer uses :mod:`ctypes` to load :file:`libuuid` or
+:file:`rpcrt4.dll` at runtime.
+
+..
+
+.. bpo: 40663
+.. date: 2020-05-17-20-38-12
+.. nonce: u2aiZf
+.. section: Core and Builtins
+
+Correctly generate annotations where parentheses are omitted but required
+(e.g: ``Type[(str, int, *other))]``.
+
+..
+
+.. bpo: 40596
+.. date: 2020-05-11-20-53-52
+.. nonce: dwOH_X
+.. section: Core and Builtins
+
+Fixed :meth:`str.isidentifier` for non-canonicalized strings containing
+non-BMP characters on Windows.
+
+..
+
+.. bpo: 40593
+.. date: 2020-05-11-13-50-52
+.. nonce: yuOXj3
+.. section: Core and Builtins
+
+Improved syntax errors for invalid characters in source code.
+
+..
+
+.. bpo: 40585
+.. date: 2020-05-11-00-19-42
+.. nonce: yusknY
+.. section: Core and Builtins
+
+Fixed a bug when using :func:`codeop.compile_command` that was causing
+exceptions to be swallowed with the new parser. Patch by Pablo Galindo
+
+..
+
+.. bpo: 40566
+.. date: 2020-05-09-01-39-16
+.. nonce: wlcjW_
+.. section: Core and Builtins
+
+Apply :pep:`573` to :mod:`abc`.
+
+..
+
+.. bpo: 40502
+.. date: 2020-05-08-03-25-26
+.. nonce: e-VCyL
+.. section: Core and Builtins
+
+Initialize ``n->n_col_offset``. (Patch by Joannah Nanjekye)
+
+..
+
+.. bpo: 40527
+.. date: 2020-05-06-14-52-35
+.. nonce: gTNKuy
+.. section: Core and Builtins
+
+Fix command line argument parsing: no longer write errors multiple times
+into stderr.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-05-05-21-11-35
+.. nonce: ggwD3C
+.. section: Core and Builtins
+
+Port :mod:`errno` to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 40523
+.. date: 2020-05-05-20-36-15
+.. nonce: hKZVTB
+.. section: Core and Builtins
+
+Add pass-throughs for :func:`hash` and :func:`reversed` to
+:class:`weakref.proxy` objects. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 1635741
+.. date: 2020-05-05-03-36-27
+.. nonce: ARv1YV
+.. section: Core and Builtins
+
+Port :mod:`syslog` to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 40246
+.. date: 2020-05-03-23-28-11
+.. nonce: c1D7x8
+.. section: Core and Builtins
+
+Reporting a specialised error message for invalid string prefixes, which was
+introduced in :issue:`40246`, is being reverted due to backwards
+compatibility concerns for strings that immediately follow a reserved
+keyword without whitespace between them. Constructs like `bg="#d00" if clear
+else"#fca"` were failing to parse, which is not an acceptable breakage on
+such short notice.
+
+..
+
+.. bpo: 40417
+.. date: 2020-05-01-19-04-52
+.. nonce: Sti2lJ
+.. section: Core and Builtins
+
+Fix imp module deprecation warning when PyImport_ReloadModule is called.
+Patch by Robert Rouhani.
+
+..
+
+.. bpo: 40408
+.. date: 2020-05-01-15-36-14
+.. nonce: XzQI59
+.. section: Core and Builtins
+
+Fixed support of nested type variables in GenericAlias (e.g.
+``list[list[T]]``).
+
+..
+
+.. bpo: 1635741
+.. date: 2020-04-30-01-44-42
+.. nonce: GKtjqr
+.. section: Core and Builtins
+
+Port _stat module to multiphase initialization (:pep:`489`).
+
+..
+
+.. bpo: 29587
+.. date: 2020-04-30-00-50-25
+.. nonce: oEwSq
+.. section: Core and Builtins
+
+Enable implicit exception chaining when calling :meth:`generator.throw`.
+
+..
+
+.. bpo: 40328
+.. date: 2020-04-19-22-23-32
+.. nonce: gWJ53f
+.. section: Core and Builtins
+
+Add tools for generating mappings headers for CJKCodecs.
+
+..
+
+.. bpo: 40228
+.. date: 2020-04-08-17-02-35
+.. nonce: bRaaJ-
+.. section: Core and Builtins
+
+Setting frame.f_lineno is now robust w.r.t. changes in the
+source-to-bytecode compiler
+
+..
+
+.. bpo: 38880
+.. date: 2019-11-22-14-34-47
+.. nonce: evcCPa
+.. section: Core and Builtins
+
+Added the ability to list interpreters associated with channel ends in the
+internal subinterpreters module.
+
+..
+
+.. bpo: 37986
+.. date: 2019-11-20-09-50-58
+.. nonce: o0lmA7
+.. section: Core and Builtins
+
+Improve performance of :c:func:`PyLong_FromDouble` for values that fit into
+:c:expr:`long`.
+
+..
+
+.. bpo: 40662
+.. date: 2020-05-18-12-56-45
+.. nonce: dfornR
+.. section: Library
+
+Fixed :func:`ast.get_source_segment` for ast nodes that have incomplete
+location information. Patch by Irit Katriel.
+
+..
+
+.. bpo: 40665
+.. date: 2020-05-17-21-56-38
+.. nonce: msB7u5
+.. section: Library
+
+Convert :mod:`bisect` to use Argument Clinic.
+
+..
+
+.. bpo: 40536
+.. date: 2020-05-17-14-00-12
+.. nonce: FCpoRA
+.. section: Library
+
+Added the :func:`~zoneinfo.available_timezones` function to the
+:mod:`zoneinfo` module. Patch by Paul Ganssle.
+
+..
+
+.. bpo: 40645
+.. date: 2020-05-16-19-34-38
+.. nonce: 7ibMt-
+.. section: Library
+
+The :class:`hmac.HMAC` exposes internal implementation details. The
+attributes ``digest_cons``, ``inner``, and ``outer`` are deprecated and will
+be removed in the future.
+
+..
+
+.. bpo: 40645
+.. date: 2020-05-16-17-05-02
+.. nonce: wYSkjT
+.. section: Library
+
+The internal module ``_hashlib`` wraps and exposes OpenSSL's HMAC API. The
+new code will be used in Python 3.10 after the internal implementation
+details of the pure Python HMAC module are no longer part of the public API.
+
+..
+
+.. bpo: 40637
+.. date: 2020-05-15-21-57-10
+.. nonce: lb3Bnp
+.. section: Library
+
+Builtin hash modules can now be disabled or selectively enabled with
+``configure --with-builtin-hashlib-hashes=sha3,blake1`` or
+``--without-builtin-hashlib-hashes``.
+
+..
+
+.. bpo: 37630
+.. date: 2020-05-15-19-53-18
+.. nonce: O5kgAw
+.. section: Library
+
+The :mod:`hashlib` module can now use SHA3 hashes and SHAKE XOF from OpenSSL
+when available.
+
+..
+
+.. bpo: 40479
+.. date: 2020-05-15-17-38-21
+.. nonce: yamSCh
+.. section: Library
+
+The :mod:`hashlib` now compiles with OpenSSL 3.0.0-alpha2.
+
+..
+
+.. bpo: 40257
+.. date: 2020-05-13-23-10-25
+.. nonce: aR4TGp
+.. section: Library
+
+Revert changes to :func:`inspect.getdoc`.
+
+..
+
+.. bpo: 40607
+.. date: 2020-05-13-15-32-13
+.. nonce: uSPFCi
+.. section: Library
+
+When cancelling a task due to timeout, :meth:`asyncio.wait_for` will now
+propagate the exception if an error happens during cancellation. Patch by
+Roman Skurikhin.
+
+..
+
+.. bpo: 40612
+.. date: 2020-05-13-10-23-29
+.. nonce: gOIreM
+.. section: Library
+
+Fix edge cases in SyntaxError formatting. If the offset is <= 0, no caret is
+printed. If the offset is > line length, the caret is printed pointing just
+after the last character.
+
+..
+
+.. bpo: 40597
+.. date: 2020-05-11-19-17-23
+.. nonce: 4SGfgm
+.. section: Library
+
+If text content lines are longer than policy.max_line_length, always use a
+content-encoding to make sure they are wrapped.
+
+..
+
+.. bpo: 40571
+.. date: 2020-05-09-15-38-25
+.. nonce: kOXZGC
+.. section: Library
+
+Added functools.cache() as a simpler, more discoverable way to access the
+unbounded cache variant of lru_cache(maxsize=None).
+
+..
+
+.. bpo: 40503
+.. date: 2020-05-08-15-48-39
+.. nonce: elZyxc
+.. section: Library
+
+:pep:`615`, the :mod:`zoneinfo` module. Adds support for the IANA time zone
+database.
+
+..
+
+.. bpo: 40397
+.. date: 2020-05-07-21-22-04
+.. nonce: PVWFAn
+.. section: Library
+
+Removed attributes ``__args__`` and ``__parameters__`` from special generic
+aliases like ``typing.List`` (not subscripted).
+
+..
+
+.. bpo: 40549
+.. date: 2020-05-07-20-11-51
+.. nonce: 6FiRSV
+.. section: Library
+
+Convert posixmodule.c ("posix" or "nt" module) to the multiphase
+initialization (PEP 489).
+
+..
+
+.. bpo: 31033
+.. date: 2020-05-07-06-41-20
+.. nonce: waCj3n
+.. section: Library
+
+Add a ``msg`` argument to :meth:`Future.cancel` and :meth:`Task.cancel`.
+
+..
+
+.. bpo: 40541
+.. date: 2020-05-06-15-36-47
+.. nonce: LlYghL
+.. section: Library
+
+Added an optional *counts* parameter to random.sample().
+
+..
+
+.. bpo: 40515
+.. date: 2020-05-06-13-51-19
+.. nonce: TUCvYB
+.. section: Library
+
+The :mod:`ssl` and :mod:`hashlib` modules now actively check that OpenSSL is
+build with thread support. Python 3.7.0 made thread support mandatory and no
+longer works safely with a no-thread builds.
+
+..
+
+.. bpo: 31033
+.. date: 2020-05-06-02-33-00
+.. nonce: aX12pw
+.. section: Library
+
+When a :class:`asyncio.Task` is cancelled, the exception traceback now
+chains all the way back to where the task was first interrupted.
+
+..
+
+.. bpo: 40504
+.. date: 2020-05-05-17-12-47
+.. nonce: EX6wPn
+.. section: Library
+
+:func:`functools.lru_cache` objects can now be the targets of weakrefs.
+
+..
+
+.. bpo: 40559
+.. date: 2020-05-05-08-12-51
+.. nonce: 112wwa
+.. section: Library
+
+Fix possible memory leak in the C implementation of :class:`asyncio.Task`.
+
+..
+
+.. bpo: 40480
+.. date: 2020-05-04-21-21-43
+.. nonce: mjldWa
+.. section: Library
+
+``fnmatch.fnmatch()`` could take exponential time in the presence of
+multiple ``*`` pattern characters. This was repaired by generating more
+elaborate regular expressions to avoid futile backtracking.
+
+..
+
+.. bpo: 40495
+.. date: 2020-05-04-11-20-49
+.. nonce: TyTc2O
+.. section: Library
+
+:mod:`compileall` is now able to use hardlinks to prevent duplicates in a
+case when ``.pyc`` files for different optimization levels have the same
+content.
+
+..
+
+.. bpo: 40457
+.. date: 2020-05-02-17-17-37
+.. nonce: EXReI1
+.. section: Library
+
+The ssl module now support OpenSSL builds without TLS 1.0 and 1.1 methods.
+
+..
+
+.. bpo: 40355
+.. date: 2020-05-02-14-24-48
+.. nonce: xTujaB
+.. section: Library
+
+Improve error reporting in :func:`ast.literal_eval` in the presence of
+malformed :class:`ast.Dict` nodes instead of silently ignoring any
+non-conforming elements. Patch by Curtis Bucher.
+
+..
+
+.. bpo: 40465
+.. date: 2020-05-02-12-00-28
+.. nonce: qfCjOD
+.. section: Library
+
+Deprecated the optional *random* argument to *random.shuffle()*.
+
+..
+
+.. bpo: 40459
+.. date: 2020-05-02-04-29-31
+.. nonce: fSAYVD
+.. section: Library
+
+:func:`platform.win32_ver` now produces correct *ptype* strings instead of
+empty strings.
+
+..
+
+.. bpo: 39435
+.. date: 2020-05-01-23-24-25
+.. nonce: mgb6ib
+.. section: Library
+
+The first argument of :func:`pickle.loads` is now positional-only.
+
+..
+
+.. bpo: 39305
+.. date: 2020-05-01-00-22-58
+.. nonce: Cuwu_H
+.. section: Library
+
+Update :mod:`nntplib` to merge :class:`nntplib.NNTP` and
+:class:`nntplib._NNTPBase`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 32494
+.. date: 2020-04-30-22-25-08
+.. nonce: 1xaU5l
+.. section: Library
+
+Update :mod:`dbm.gnu` to use gdbm_count if possible when calling
+:func:`len`. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 40453
+.. date: 2020-04-30-22-04-58
+.. nonce: ggz7sl
+.. section: Library
+
+Add ``isolated=True`` keyword-only parameter to
+``_xxsubinterpreters.create()``. An isolated subinterpreter cannot spawn
+threads, spawn a child process or call ``os.fork()``.
+
+..
+
+.. bpo: 40286
+.. date: 2020-04-29-18-02-16
+.. nonce: txbQNx
+.. section: Library
+
+Remove ``_random.Random.randbytes()``: the C implementation of
+``randbytes()``. Implement the method in Python to ease subclassing:
+``randbytes()`` now directly reuses ``getrandbits()``.
+
+..
+
+.. bpo: 40394
+.. date: 2020-04-28-18-59-48
+.. nonce: Yi5uuM
+.. section: Library
+
+Added default arguments to
+:meth:`difflib.SequenceMatcher.find_longest_match()`.
+
+..
+
+.. bpo: 39995
+.. date: 2020-04-28-18-25-27
+.. nonce: WmA3Gk
+.. section: Library
+
+Fix a race condition in concurrent.futures._ThreadWakeup: access to
+_ThreadWakeup is now protected with the shutdown lock.
+
+..
+
+.. bpo: 30966
+.. date: 2020-04-27-20-27-39
+.. nonce: Xmtlqu
+.. section: Library
+
+``Process.shutdown(wait=True)`` of :mod:`concurrent.futures` now closes
+explicitly the result queue.
+
+..
+
+.. bpo: 30966
+.. date: 2020-04-27-17-19-09
+.. nonce: _5lDx-
+.. section: Library
+
+Add a new :meth:`~multiprocessing.SimpleQueue.close` method to the
+:class:`~multiprocessing.SimpleQueue` class to explicitly close the queue.
+
+..
+
+.. bpo: 39966
+.. date: 2020-04-27-14-48-43
+.. nonce: N5yXUe
+.. section: Library
+
+Revert bpo-25597. :class:`unittest.mock.MagicMock` with wraps' set uses
+default return values for magic methods.
+
+..
+
+.. bpo: 39791
+.. date: 2020-04-27-00-51-40
+.. nonce: wv8Dxn
+.. section: Library
+
+Added ``files()`` function to importlib.resources with support for
+subdirectories in package data, matching backport in importlib_resources
+1.5.
+
+..
+
+.. bpo: 40375
+.. date: 2020-04-25-23-14-11
+.. nonce: 5GuK2A
+.. section: Library
+
+:meth:`imaplib.IMAP4.unselect` is added. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 40389
+.. date: 2020-04-25-20-00-58
+.. nonce: FPA6f0
+.. section: Library
+
+``repr()`` now returns ``typing.Optional[T]`` when called for
+``typing.Union`` of two types, one of which is ``NoneType``.
+
+..
+
+.. bpo: 40291
+.. date: 2020-04-14-22-31-27
+.. nonce: _O8hXn
+.. section: Library
+
+Add support for CAN_J1939 sockets (available on Linux 5.4+)
+
+..
+
+.. bpo: 40273
+.. date: 2020-04-14-09-54-35
+.. nonce: IN73Ks
+.. section: Library
+
+:class:`types.MappingProxyType` is now reversible.
+
+..
+
+.. bpo: 39075
+.. date: 2020-04-07-23-44-06
+.. nonce: hgck3j
+.. section: Library
+
+The repr for :class:`types.SimpleNamespace` is now insertion ordered rather
+than alphabetical.
+
+..
+
+.. bpo: 40192
+.. date: 2020-04-05-04-16-14
+.. nonce: nk8uRJ
+.. section: Library
+
+On AIX, :func:`~time.thread_time` is now implemented with
+``thread_cputime()`` which has nanosecond resolution, rather than
+``clock_gettime(CLOCK_THREAD_CPUTIME_ID)`` which has a resolution of 10 milliseconds.
+Patch by Batuhan Taskaya.
+
+..
+
+.. bpo: 40025
+.. date: 2020-03-21-05-26-38
+.. nonce: DTLtyq
+.. section: Library
+
+Raise TypeError when _generate_next_value_ is defined after members. Patch
+by Ethan Onstott.
+
+..
+
+.. bpo: 39058
+.. date: 2019-12-15-19-17-10
+.. nonce: 7ci-vd
+.. section: Library
+
+In the argparse module, the repr for Namespace() and other argument holders
+now displayed in the order attributes were added. Formerly, it displayed in
+alphabetical order even though argument order is preserved the user visible
+parts of the module.
+
+..
+
+.. bpo: 24416
+.. date: 2019-09-01-15-17-49
+.. nonce: G8Ww1U
+.. section: Library
+
+The ``isocalendar()`` methods of :class:`datetime.date` and
+:class:`datetime.datetime` now return a :term:`named tuple` instead of a
+:class:`tuple`.
+
+..
+
+.. bpo: 34790
+.. date: 2020-05-08-20-18-55
+.. nonce: t6kW_1
+.. section: Documentation
+
+Add version of removal for explicit passing of coros to `asyncio.wait()`'s
+documentation
+
+..
+
+.. bpo: 40561
+.. date: 2020-05-08-08-39-40
+.. nonce: ZMB_2i
+.. section: Documentation
+
+Provide docstrings for webbrowser open functions.
+
+..
+
+.. bpo: 40499
+.. date: 2020-05-04-14-20-02
+.. nonce: tjLSo8
+.. section: Documentation
+
+Mention that :func:`asyncio.wait` requires a non-empty set of awaitables.
+
+..
+
+.. bpo: 39705
+.. date: 2020-03-14-18-37-06
+.. nonce: nQVqig
+.. section: Documentation
+
+Tutorial example for sorted() in the Loop Techniques section is given a
+better explanation. Also a new example is included to explain sorted()'s
+basic behavior.
+
+..
+
+.. bpo: 39435
+.. date: 2020-01-24-05-42-57
+.. nonce: EFcdFU
+.. section: Documentation
+
+Fix an incorrect signature for :func:`pickle.loads` in the docs
+
+..
+
+.. bpo: 40055
+.. date: 2020-05-15-01-21-44
+.. nonce: Xp4aP9
+.. section: Tests
+
+distutils.tests now saves/restores warnings filters to leave them unchanged.
+Importing tests imports docutils which imports pkg_resources which adds a
+warnings filter.
+
+..
+
+.. bpo: 40436
+.. date: 2020-04-29-16-08-24
+.. nonce: gDMnYl
+.. section: Tests
+
+test_gdb and test.pythoninfo now check gdb command exit code.
+
+..
+
+.. bpo: 40653
+.. date: 2020-05-17-03-33-00
+.. nonce: WI8UGn
+.. section: Build
+
+Move _dirnameW out of HAVE_SYMLINK to fix a potential compiling issue.
+
+..
+
+.. bpo: 40514
+.. date: 2020-05-05-15-39-11
+.. nonce: bZZmuS
+.. section: Build
+
+Add ``--with-experimental-isolated-subinterpreters`` build option to
+``configure``: better isolate subinterpreters, experimental build mode.
+
+..
+
+.. bpo: 40650
+.. date: 2020-05-17-00-08-13
+.. nonce: 4euMtU
+.. section: Windows
+
+Include winsock2.h in pytime.c for timeval.
+
+..
+
+.. bpo: 40458
+.. date: 2020-05-01-20-57-57
+.. nonce: Eb0ueI
+.. section: Windows
+
+Increase reserved stack space to prevent overflow crash on Windows.
+
+..
+
+.. bpo: 39148
+.. date: 2020-03-23-19-07-55
+.. nonce: W1YJEb
+.. section: Windows
+
+Add IPv6 support to :mod:`asyncio` datagram endpoints in ProactorEventLoop.
+Change the raised exception for unknown address families to ValueError as
+it's not coming from Windows API.
+
+..
+
+.. bpo: 34956
+.. date: 2020-05-18-02-43-11
+.. nonce: 35IcGF
+.. section: macOS
+
+When building Python on macOS from source, ``_tkinter`` now links with
+non-system Tcl and Tk frameworks if they are installed in
+``/Library/Frameworks``, as had been the case on older releases
+of macOS. If a macOS SDK is explicitly configured, by using
+``--enable-universalsdk=`` or ``-isysroot``, only the SDK itself is
+searched. The default behavior can still be overridden with
+``--with-tcltk-includes`` and ``--with-tcltk-libs``.
+
+..
+
+.. bpo: 35569
+.. date: 2020-04-15-00-02-47
+.. nonce: 02_1MV
+.. section: macOS
+
+Expose RFC 3542 IPv6 socket options.
+
+..
+
+.. bpo: 40479
+.. date: 2020-05-15-17-48-25
+.. nonce: B1gBl-
+.. section: Tools/Demos
+
+Update multissltest helper to test with latest OpenSSL 1.0.2, 1.1.0, 1.1.1,
+and 3.0.0-alpha.
+
+..
+
+.. bpo: 40431
+.. date: 2020-04-29-01-32-17
+.. nonce: B_aEZ0
+.. section: Tools/Demos
+
+Fix a syntax typo in ``turtledemo`` that now raises a ``SyntaxError``.
+
+..
+
+.. bpo: 40163
+.. date: 2020-04-03-08-32-31
+.. nonce: lX8K4B
+.. section: Tools/Demos
+
+Fix multissltest tool. OpenSSL has changed download URL for old releases.
+The multissltest tool now tries to download from current and old download
+URLs.
+
+..
+
+.. bpo: 39465
+.. date: 2020-05-14-00-36-19
+.. nonce: 3a5g-X
+.. section: C API
+
+Remove the ``_PyUnicode_ClearStaticStrings()`` function from the C API.
+
+..
+
+.. bpo: 38787
+.. date: 2020-05-10-16-39-08
+.. nonce: XzQ59O
+.. section: C API
+
+Add PyCFunction_CheckExact() macro for exact type checks now that we allow
+subtypes of PyCFunction, as well as PyCMethod_CheckExact() and
+PyCMethod_Check() for the new PyCMethod subtype.
+
+..
+
+.. bpo: 40545
+.. date: 2020-05-07-11-41-13
+.. nonce: 51DzF1
+.. section: C API
+
+Declare ``_PyErr_GetTopmostException()`` with ``PyAPI_FUNC()`` to properly
+export the function in the C API. The function remains private (``_Py``)
+prefix.
+
+..
+
+.. bpo: 40412
+.. date: 2020-05-01-17-28-04
+.. nonce: dE0D8N
+.. section: C API
+
+Nullify inittab_copy during finalization, preventing future interpreter
+initializations in an embedded situation from crashing. Patch by Gregory
+Szorc.
+
+..
+
+.. bpo: 40429
+.. date: 2020-04-29-01-39-41
+.. nonce: VQfvta
+.. section: C API
+
+The :c:func:`PyThreadState_GetFrame` function now returns a strong reference
+to the frame.
+
+..
+
+.. bpo: 40428
+.. date: 2020-04-28-23-17-27
+.. nonce: rmtpru
+.. section: C API
+
+Remove the following functions from the C API. Call :c:func:`PyGC_Collect`
+explicitly to free all free lists.
+
+* ``PyAsyncGen_ClearFreeLists()``
+* ``PyContext_ClearFreeList()``
+* ``PyDict_ClearFreeList()``
+* ``PyFloat_ClearFreeList()``
+* ``PyFrame_ClearFreeList()``
+* ``PyList_ClearFreeList()``
+* ``PySet_ClearFreeList()``
+* ``PyTuple_ClearFreeList()``
+
+..
+
+.. bpo: 40421
+.. date: 2020-04-28-19-29-36
+.. nonce: 3uIIaB
+.. section: C API
+
+New :c:func:`PyFrame_GetBack` function: get the frame next outer frame.
+
+..
+
+.. bpo: 40421
+.. date: 2020-04-28-15-47-58
+.. nonce: ZIzOV0
+.. section: C API
+
+New :c:func:`PyFrame_GetCode` function: return a borrowed reference to the
+frame code.
+
+..
+
+.. bpo: 40217
+.. date: 2020-04-27-14-00-38
+.. nonce: sgn6c8
+.. section: C API
+
+Ensure that instances of types created with
+:c:func:`PyType_FromSpecWithBases` will visit its class object when
+traversing references in the garbage collector (implemented as an extension
+of the provided :c:member:`~PyTypeObject.tp_traverse`). Patch by Pablo
+Galindo.
+
+..
+
+.. bpo: 38787
+.. date: 2020-01-22-12-38-59
+.. nonce: HUH6hd
+.. section: C API
+
+Module C state is now accessible from C-defined heap type methods
+(:pep:`573`). Patch by Marcel Plch and Petr Viktorin.
--- /dev/null
+Put news entry `blurb`_ files for the *Build* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *C API* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *Core and Builtins* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *Documentation* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *IDLE* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *Library* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *Security* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *Tests* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *Tools/Demos* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *Windows* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
--- /dev/null
+Put news entry `blurb`_ files for the *macOS* section in this directory.
+
+.. _blurb: https://pypi.org/project/blurb/
[function.PyMemoryView_FromBuffer]
added = '3.11'
+# Constants for Py_buffer API added to this list in Python 3.11.1 (https://github.com/python/cpython/issues/98680)
+# (they were available with 3.11.0)
+[const.PyBUF_MAX_NDIM]
+ added = '3.11'
+[const.PyBUF_SIMPLE]
+ added = '3.11'
+[const.PyBUF_WRITABLE]
+ added = '3.11'
+[const.PyBUF_FORMAT]
+ added = '3.11'
+[const.PyBUF_ND]
+ added = '3.11'
+[const.PyBUF_STRIDES]
+ added = '3.11'
+[const.PyBUF_C_CONTIGUOUS]
+ added = '3.11'
+[const.PyBUF_F_CONTIGUOUS]
+ added = '3.11'
+[const.PyBUF_ANY_CONTIGUOUS]
+ added = '3.11'
+[const.PyBUF_INDIRECT]
+ added = '3.11'
+[const.PyBUF_CONTIG]
+ added = '3.11'
+[const.PyBUF_CONTIG_RO]
+ added = '3.11'
+[const.PyBUF_STRIDED]
+ added = '3.11'
+[const.PyBUF_STRIDED_RO]
+ added = '3.11'
+[const.PyBUF_RECORDS]
+ added = '3.11'
+[const.PyBUF_RECORDS_RO]
+ added = '3.11'
+[const.PyBUF_FULL]
+ added = '3.11'
+[const.PyBUF_FULL_RO]
+ added = '3.11'
+[const.PyBUF_READ]
+ added = '3.11'
+[const.PyBUF_WRITE]
+ added = '3.11'
+
+
# (Detailed comments aren't really needed for further entries: from here on
# we can use version control logs.)
return loop;
}
- if (PyErr_WarnEx(PyExc_DeprecationWarning,
- "There is no current event loop",
- stacklevel))
- {
- return NULL;
- }
-
policy = PyObject_CallNoArgs(asyncio_get_event_loop_policy);
if (policy == NULL) {
return NULL;
return NULL;
}
- for (i = 0; i < PyList_GET_SIZE(self->fut_callbacks); i++) {
+ // Beware: PyObject_RichCompareBool below may change fut_callbacks.
+ // See GH-97592.
+ for (i = 0;
+ self->fut_callbacks != NULL && i < PyList_GET_SIZE(self->fut_callbacks);
+ i++) {
int ret;
PyObject *item = PyList_GET_ITEM(self->fut_callbacks, i);
Py_INCREF(item);
}
}
- if (j == 0) {
+ // Note: fut_callbacks may have been cleared.
+ if (j == 0 || self->fut_callbacks == NULL) {
Py_CLEAR(self->fut_callbacks);
Py_DECREF(newlist);
return PyLong_FromSsize_t(len + cleared_callback0);
return get_event_loop(1);
}
+// This internal method is going away in Python 3.12, left here only for
+// backwards compatibility with 3.10.0 - 3.10.8 and 3.11.0.
+// Similarly, this method's Python equivalent in asyncio.events is going
+// away as well.
+// See GH-99949 for more details.
/*[clinic input]
_asyncio._get_event_loop
stacklevel: int = 3
self->state = ESCAPED_CHAR;
}
else if (c == ' ' && dialect->skipinitialspace)
- /* ignore space at start of field */
+ /* ignore spaces at start of field */
;
else if (c == dialect->delimiter) {
/* save empty field */
" quoting character. It defaults to '\"'.\n"
" * delimiter - specifies a one-character string to use as the\n"
" field separator. It defaults to ','.\n"
-" * skipinitialspace - specifies how to interpret whitespace which\n"
-" immediately follows a delimiter. It defaults to False, which\n"
-" means that whitespace immediately following a delimiter is part\n"
+" * skipinitialspace - specifies how to interpret spaces which\n"
+" immediately follow a delimiter. It defaults to False, which\n"
+" means that spaces immediately following a delimiter is part\n"
" of the following field.\n"
" * lineterminator - specifies the character sequence which should\n"
" terminate rows.\n"
"ffi_prep_cif failed with %d", result);
goto error;
}
+
+
#if HAVE_FFI_PREP_CLOSURE_LOC
# ifdef USING_APPLE_OS_LIBFFI
+# ifdef HAVE_BUILTIN_AVAILABLE
# define HAVE_FFI_PREP_CLOSURE_LOC_RUNTIME __builtin_available(macos 10.15, ios 13, watchos 6, tvos 13, *)
+# else
+# define HAVE_FFI_PREP_CLOSURE_LOC_RUNTIME (ffi_prep_closure_loc != NULL)
+# endif
# else
# define HAVE_FFI_PREP_CLOSURE_LOC_RUNTIME 1
# endif
#define CTYPES_CAPSULE_NAME_PYMEM "_ctypes pymem"
+
static void pymem_destructor(PyObject *ptr)
{
void *p = PyCapsule_GetPointer(ptr, CTYPES_CAPSULE_NAME_PYMEM);
#endif
# ifdef USING_APPLE_OS_LIBFFI
+# ifdef HAVE_BUILTIN_AVAILABLE
# define HAVE_FFI_PREP_CIF_VAR_RUNTIME __builtin_available(macos 10.15, ios 13, watchos 6, tvos 13, *)
+# else
+# define HAVE_FFI_PREP_CIF_VAR_RUNTIME (ffi_prep_cif_var != NULL)
+# endif
# elif HAVE_FFI_PREP_CIF_VAR
# define HAVE_FFI_PREP_CIF_VAR_RUNTIME true
# else
PyErr_Fetch(&tp, &v, &tb);
PyErr_NormalizeException(&tp, &v, &tb);
- cls_str = PyObject_Str(tp);
+ if (PyType_Check(tp))
+ cls_str = PyType_GetName((PyTypeObject *)tp);
+ else
+ cls_str = PyObject_Str(tp);
if (cls_str) {
PyUnicode_AppendAndDel(&s, cls_str);
PyUnicode_AppendAndDel(&s, PyUnicode_FromString(": "));
#else
#ifdef __APPLE__
#ifdef HAVE_DYLD_SHARED_CACHE_CONTAINS_PATH
-#define HAVE_DYLD_SHARED_CACHE_CONTAINS_PATH_RUNTIME \
- __builtin_available(macOS 11.0, iOS 14.0, tvOS 14.0, watchOS 7.0, *)
+# ifdef HAVE_BUILTIN_AVAILABLE
+# define HAVE_DYLD_SHARED_CACHE_CONTAINS_PATH_RUNTIME \
+ __builtin_available(macOS 11.0, iOS 14.0, tvOS 14.0, watchOS 7.0, *)
+# else
+# define HAVE_DYLD_SHARED_CACHE_CONTAINS_PATH_RUNTIME \
+ (_dyld_shared_cache_contains_path != NULL)
+# endif
#else
// Support the deprecated case of compiling on an older macOS version
static void *libsystem_b_handle;
#endif
#endif
+#if defined(__has_builtin)
+#if __has_builtin(__builtin_available)
+#define HAVE_BUILTIN_AVAILABLE 1
+#endif
+#endif
+
typedef struct tagPyCArgObject PyCArgObject;
typedef struct tagCDataObject CDataObject;
typedef PyObject *(* GETFUNC)(void *, Py_ssize_t size);
/* #define MALLOC_CLOSURE_DEBUG */ /* enable for some debugging output */
+
/******************************************************************/
typedef union _tagITEM {
{
#ifdef HAVE_FFI_CLOSURE_ALLOC
#ifdef USING_APPLE_OS_LIBFFI
+# ifdef HAVE_BUILTIN_AVAILABLE
if (__builtin_available(macos 10.15, ios 13, watchos 6, tvos 13, *)) {
+# else
+ if (ffi_closure_free != NULL) {
+# endif
#endif
ffi_closure_free(p);
return;
{
#ifdef HAVE_FFI_CLOSURE_ALLOC
#ifdef USING_APPLE_OS_LIBFFI
+# ifdef HAVE_BUILTIN_AVAILABLE
if (__builtin_available(macos 10.15, ios 13, watchos 6, tvos 13, *)) {
+# else
+ if (ffi_closure_alloc != NULL) {
+# endif
#endif
return ffi_closure_alloc(size, codeloc);
#ifdef USING_APPLE_OS_LIBFFI
}
stgdict = PyType_stgdict(type);
- if (!stgdict)
+ if (!stgdict) {
+ PyErr_SetString(PyExc_TypeError,
+ "ctypes state is not initialized");
return -1;
+ }
/* If this structure/union is already marked final we cannot assign
_fields_ anymore. */
-@ECHO OFF\r
-\r
-rem Test all machine configurations, pydebug, refleaks, release build.\r
-\r
-cd ..\..\..\\r
-\r
-\r
-echo.\r
-echo # ======================================================================\r
-echo # Building Python (Debug^|x64)\r
-echo # ======================================================================\r
-echo.\r
-\r
-call .\Tools\buildbot\clean.bat\r
-call .\Tools\buildbot\build.bat -c Debug -p x64\r
-\r
-echo.\r
-echo # ======================================================================\r
-echo # platform=Debug^|x64\r
-echo # ======================================================================\r
-echo.\r
-\r
-echo # ==================== refleak tests =======================\r
-echo.\r
-call python.bat -m test -uall -R 3:3 test_decimal\r
-echo.\r
-echo.\r
-\r
-echo # ==================== regular tests =======================\r
-echo.\r
-call python.bat -m test -uall test_decimal\r
-echo.\r
-echo.\r
-\r
-echo # ==================== deccheck =======================\r
-echo.\r
-call python.bat .\Modules\_decimal\tests\deccheck.py\r
-echo.\r
-echo.\r
-\r
-\r
-echo.\r
-echo # ======================================================================\r
-echo # Building Python (Release^|x64)\r
-echo # ======================================================================\r
-echo.\r
-\r
-call .\Tools\buildbot\clean.bat\r
-call .\Tools\buildbot\build.bat -c Release -p x64\r
-\r
-echo.\r
-echo # ======================================================================\r
-echo # platform=Release^|x64\r
-echo # ======================================================================\r
-echo.\r
-\r
-echo # ==================== regular tests =======================\r
-echo.\r
-call python.bat -m test -uall test_decimal\r
-echo.\r
-echo.\r
-\r
-echo # ==================== deccheck =======================\r
-echo.\r
-call python.bat .\Modules\_decimal\tests\deccheck.py\r
-echo.\r
-echo.\r
-\r
-\r
-echo.\r
-echo # ======================================================================\r
-echo # Building Python (Debug^|Win32)\r
-echo # ======================================================================\r
-echo.\r
-\r
-call .\Tools\buildbot\clean.bat\r
-call Tools\buildbot\build.bat -c Debug -p Win32\r
-\r
-echo.\r
-echo # ======================================================================\r
-echo # platform=Debug^|Win32\r
-echo # ======================================================================\r
-echo.\r
-\r
-echo # ==================== refleak tests =======================\r
-echo.\r
-call python.bat -m test -uall -R 3:3 test_decimal\r
-echo.\r
-echo.\r
-\r
-echo # ==================== regular tests =======================\r
-echo.\r
-call python.bat -m test -uall test_decimal\r
-echo.\r
-echo.\r
-\r
-echo # ==================== deccheck =======================\r
-echo.\r
-call python.bat .\Modules\_decimal\tests\deccheck.py\r
-echo.\r
-echo.\r
-\r
-\r
-echo.\r
-echo # ======================================================================\r
-echo # Building Python (Release^|Win32)\r
-echo # ======================================================================\r
-echo.\r
-\r
-call .\Tools\buildbot\clean.bat\r
-call .\Tools\buildbot\build.bat -c Release -p Win32\r
-\r
-echo.\r
-echo # ======================================================================\r
-echo # platform=Release^|Win32\r
-echo # ======================================================================\r
-echo.\r
-\r
-echo # ==================== regular tests =======================\r
-echo.\r
-call python.bat -m test -uall test_decimal\r
-echo.\r
-echo.\r
-\r
-echo # ==================== deccheck =======================\r
-echo.\r
-call python.bat .\Modules\_decimal\tests\deccheck.py\r
-echo.\r
-echo.\r
+@ECHO OFF
+
+rem Test all machine configurations, pydebug, refleaks, release build.
+
+cd ..\..\..\
+
+
+echo.
+echo # ======================================================================
+echo # Building Python (Debug^|x64)
+echo # ======================================================================
+echo.
+
+call .\Tools\buildbot\clean.bat
+call .\Tools\buildbot\build.bat -c Debug -p x64
+
+echo.
+echo # ======================================================================
+echo # platform=Debug^|x64
+echo # ======================================================================
+echo.
+
+echo # ==================== refleak tests =======================
+echo.
+call python.bat -m test -uall -R 3:3 test_decimal
+echo.
+echo.
+
+echo # ==================== regular tests =======================
+echo.
+call python.bat -m test -uall test_decimal
+echo.
+echo.
+
+echo # ==================== deccheck =======================
+echo.
+call python.bat .\Modules\_decimal\tests\deccheck.py
+echo.
+echo.
+
+
+echo.
+echo # ======================================================================
+echo # Building Python (Release^|x64)
+echo # ======================================================================
+echo.
+
+call .\Tools\buildbot\clean.bat
+call .\Tools\buildbot\build.bat -c Release -p x64
+
+echo.
+echo # ======================================================================
+echo # platform=Release^|x64
+echo # ======================================================================
+echo.
+
+echo # ==================== regular tests =======================
+echo.
+call python.bat -m test -uall test_decimal
+echo.
+echo.
+
+echo # ==================== deccheck =======================
+echo.
+call python.bat .\Modules\_decimal\tests\deccheck.py
+echo.
+echo.
+
+
+echo.
+echo # ======================================================================
+echo # Building Python (Debug^|Win32)
+echo # ======================================================================
+echo.
+
+call .\Tools\buildbot\clean.bat
+call Tools\buildbot\build.bat -c Debug -p Win32
+
+echo.
+echo # ======================================================================
+echo # platform=Debug^|Win32
+echo # ======================================================================
+echo.
+
+echo # ==================== refleak tests =======================
+echo.
+call python.bat -m test -uall -R 3:3 test_decimal
+echo.
+echo.
+
+echo # ==================== regular tests =======================
+echo.
+call python.bat -m test -uall test_decimal
+echo.
+echo.
+
+echo # ==================== deccheck =======================
+echo.
+call python.bat .\Modules\_decimal\tests\deccheck.py
+echo.
+echo.
+
+
+echo.
+echo # ======================================================================
+echo # Building Python (Release^|Win32)
+echo # ======================================================================
+echo.
+
+call .\Tools\buildbot\clean.bat
+call .\Tools\buildbot\build.bat -c Release -p Win32
+
+echo.
+echo # ======================================================================
+echo # platform=Release^|Win32
+echo # ======================================================================
+echo.
+
+echo # ==================== regular tests =======================
+echo.
+call python.bat -m test -uall test_decimal
+echo.
+echo.
+
+echo # ==================== deccheck =======================
+echo.
+call python.bat .\Modules\_decimal\tests\deccheck.py
+echo.
+echo.
goto fail;
/* BlockingIOError, for compatibility */
- Py_INCREF(PyExc_BlockingIOError);
- if (PyModule_AddObject(m, "BlockingIOError",
- (PyObject *) PyExc_BlockingIOError) < 0)
+ if (PyModule_AddObjectRef(m, "BlockingIOError",
+ (PyObject *) PyExc_BlockingIOError) < 0) {
goto fail;
+ }
// Set type base classes
PyFileIO_Type.tp_base = &PyRawIOBase_Type;
ret = -1;
if (!fd_is_own)
self->fd = -1;
- if (self->fd >= 0)
+ if (self->fd >= 0) {
+ PyObject *exc, *val, *tb;
+ PyErr_Fetch(&exc, &val, &tb);
internal_close(self);
+ _PyErr_ChainExceptions(exc, val, tb);
+ }
done:
#ifdef MS_WINDOWS
PyObject *errors)
/*[clinic end generated code: output=fbd04d443e764ec2 input=89db6b19c6b126bf]*/
{
- self->decoder = decoder;
- Py_INCREF(decoder);
if (errors == NULL) {
- self->errors = &_Py_ID(strict);
+ errors = Py_NewRef(&_Py_ID(strict));
}
else {
- self->errors = errors;
+ errors = Py_NewRef(errors);
}
- Py_INCREF(self->errors);
+ Py_XSETREF(self->errors, errors);
+ Py_XSETREF(self->decoder, Py_NewRef(decoder));
self->translate = translate ? 1 : 0;
self->seennl = 0;
self->pendingcr = 0;
return 0;
}
+#define CHECK_INITIALIZED_DECODER(self) \
+ if (self->errors == NULL) { \
+ PyErr_SetString(PyExc_ValueError, \
+ "IncrementalNewlineDecoder.__init__() not called"); \
+ return NULL; \
+ }
+
#define SEEN_CR 1
#define SEEN_LF 2
#define SEEN_CRLF 4
Py_ssize_t output_len;
nldecoder_object *self = (nldecoder_object *) myself;
- if (self->decoder == NULL) {
- PyErr_SetString(PyExc_ValueError,
- "IncrementalNewlineDecoder.__init__ not called");
- return NULL;
- }
+ CHECK_INITIALIZED_DECODER(self);
/* decode input (with the eventual \r from a previous pass) */
if (self->decoder != Py_None) {
PyObject *buffer;
unsigned long long flag;
+ CHECK_INITIALIZED_DECODER(self);
+
if (self->decoder != Py_None) {
PyObject *state = PyObject_CallMethodNoArgs(self->decoder,
&_Py_ID(getstate));
PyObject *buffer;
unsigned long long flag;
+ CHECK_INITIALIZED_DECODER(self);
+
if (!PyTuple_Check(state)) {
PyErr_SetString(PyExc_TypeError, "state argument must be a tuple");
return NULL;
_io_IncrementalNewlineDecoder_reset_impl(nldecoder_object *self)
/*[clinic end generated code: output=32fa40c7462aa8ff input=728678ddaea776df]*/
{
+ CHECK_INITIALIZED_DECODER(self);
+
self->seennl = 0;
self->pendingcr = 0;
if (self->decoder != Py_None)
static PyObject *
incrementalnewlinedecoder_newlines_get(nldecoder_object *self, void *context)
{
+ CHECK_INITIALIZED_DECODER(self);
+
switch (self->seennl) {
case SEEN_CR:
return PyUnicode_FromString("\r");
if (st->UnpicklingError == NULL)
return NULL;
- Py_INCREF(st->PickleError);
- if (PyModule_AddObject(m, "PickleError", st->PickleError) < 0)
+ if (PyModule_AddObjectRef(m, "PickleError", st->PickleError) < 0) {
return NULL;
- Py_INCREF(st->PicklingError);
- if (PyModule_AddObject(m, "PicklingError", st->PicklingError) < 0)
+ }
+ if (PyModule_AddObjectRef(m, "PicklingError", st->PicklingError) < 0) {
return NULL;
- Py_INCREF(st->UnpicklingError);
- if (PyModule_AddObject(m, "UnpicklingError", st->UnpicklingError) < 0)
+ }
+ if (PyModule_AddObjectRef(m, "UnpicklingError", st->UnpicklingError) < 0) {
return NULL;
-
+ }
if (_Pickle_InitState(st) < 0)
return NULL;
#endif
/* Report failure */
-#define FAIL do { VTRACE(("FAIL: %d\n", __LINE__)); return 0; } while (0)
+#define FAIL do { VTRACE(("FAIL: %d\n", __LINE__)); return -1; } while (0)
/* Extract opcode, argument, or skip count from code array */
#define GET_OP \
skip = *code; \
VTRACE(("%lu (skip to %p)\n", \
(unsigned long)skip, code+skip)); \
- if (skip-adj > (uintptr_t)(end - code)) \
+ if (skip-adj > (uintptr_t)(end - code)) \
FAIL; \
code++; \
} while (0)
}
}
- return 1;
+ return 0;
}
+/* Returns 0 on success, -1 on failure, and 1 if the last op is JUMP. */
static int
_validate_inner(SRE_CODE *code, SRE_CODE *end, Py_ssize_t groups)
{
case SRE_OP_IN_LOC_IGNORE:
GET_SKIP;
/* Stop 1 before the end; we check the FAILURE below */
- if (!_validate_charset(code, code+skip-2))
+ if (_validate_charset(code, code+skip-2))
FAIL;
if (code[skip-2] != SRE_OP_FAILURE)
FAIL;
}
/* Validate the charset */
if (flags & SRE_INFO_CHARSET) {
- if (!_validate_charset(code, newcode-1))
+ if (_validate_charset(code, newcode-1))
FAIL;
if (newcode[-1] != SRE_OP_FAILURE)
FAIL;
if (skip == 0)
break;
/* Stop 2 before the end; we check the JUMP below */
- if (!_validate_inner(code, code+skip-3, groups))
+ if (_validate_inner(code, code+skip-3, groups))
FAIL;
code += skip-3;
/* Check that it ends with a JUMP, and that each JUMP
else if (code+skip-1 != target)
FAIL;
}
+ if (code != target)
+ FAIL;
}
break;
FAIL;
if (max > SRE_MAXREPEAT)
FAIL;
- if (!_validate_inner(code, code+skip-4, groups))
+ if (_validate_inner(code, code+skip-4, groups))
FAIL;
code += skip-4;
GET_OP;
FAIL;
if (max > SRE_MAXREPEAT)
FAIL;
- if (!_validate_inner(code, code+skip-3, groups))
+ if (_validate_inner(code, code+skip-3, groups))
FAIL;
code += skip-3;
GET_OP;
case SRE_OP_ATOMIC_GROUP:
{
GET_SKIP;
- if (!_validate_inner(code, code+skip-2, groups))
+ if (_validate_inner(code, code+skip-2, groups))
FAIL;
code += skip-2;
GET_OP;
to allow arbitrary jumps anywhere in the code; so we just look
for a JUMP opcode preceding our skip target.
*/
- if (skip >= 3 && skip-3 < (uintptr_t)(end - code) &&
- code[skip-3] == SRE_OP_JUMP)
- {
- VTRACE(("both then and else parts present\n"));
- if (!_validate_inner(code+1, code+skip-3, groups))
- FAIL;
+ VTRACE(("then part:\n"));
+ int rc = _validate_inner(code+1, code+skip-1, groups);
+ if (rc == 1) {
+ VTRACE(("else part:\n"));
code += skip-2; /* Position after JUMP, at <skipno> */
GET_SKIP;
- if (!_validate_inner(code, code+skip-1, groups))
- FAIL;
- code += skip-1;
- }
- else {
- VTRACE(("only a then part present\n"));
- if (!_validate_inner(code+1, code+skip-1, groups))
- FAIL;
- code += skip-1;
+ rc = _validate_inner(code, code+skip-1, groups);
}
+ if (rc)
+ FAIL;
+ code += skip-1;
break;
case SRE_OP_ASSERT:
if (arg & 0x80000000)
FAIL; /* Width too large */
/* Stop 1 before the end; we check the SUCCESS below */
- if (!_validate_inner(code+1, code+skip-2, groups))
+ if (_validate_inner(code+1, code+skip-2, groups))
FAIL;
code += skip-2;
GET_OP;
FAIL;
break;
+ case SRE_OP_JUMP:
+ if (code + 1 != end)
+ FAIL;
+ VTRACE(("JUMP: %d\n", __LINE__));
+ return 1;
+
default:
FAIL;
}
VTRACE(("okay\n"));
- return 1;
+ return 0;
}
static int
static int
_validate(PatternObject *self)
{
- if (!_validate_outer(self->code, self->code+self->codesize, self->groups))
+ if (_validate_outer(self->code, self->code+self->codesize, self->groups))
{
PyErr_SetString(PyExc_RuntimeError, "invalid SRE code");
return 0;
return PyMapping_Items(obj);
}
+static PyObject *
+test_mapping_has_key_string(PyObject *self, PyObject *Py_UNUSED(args))
+{
+ PyObject *context = PyDict_New();
+ PyObject *val = PyLong_FromLong(1);
+
+ // Since this uses `const char*` it is easier to test this in C:
+ PyDict_SetItemString(context, "a", val);
+ if (!PyMapping_HasKeyString(context, "a")) {
+ PyErr_SetString(PyExc_RuntimeError,
+ "Existing mapping key does not exist");
+ return NULL;
+ }
+ if (PyMapping_HasKeyString(context, "b")) {
+ PyErr_SetString(PyExc_RuntimeError,
+ "Missing mapping key exists");
+ return NULL;
+ }
+
+ Py_DECREF(val);
+ Py_DECREF(context);
+ Py_RETURN_NONE;
+}
+
+static PyObject *
+mapping_has_key(PyObject* self, PyObject *args)
+{
+ PyObject *context, *key;
+ if (!PyArg_ParseTuple(args, "OO", &context, &key)) {
+ return NULL;
+ }
+ return PyLong_FromLong(PyMapping_HasKey(context, key));
+}
+
+static PyObject *
+sequence_set_slice(PyObject* self, PyObject *args)
+{
+ PyObject *sequence, *obj;
+ Py_ssize_t i1, i2;
+ if (!PyArg_ParseTuple(args, "OnnO", &sequence, &i1, &i2, &obj)) {
+ return NULL;
+ }
+
+ int res = PySequence_SetSlice(sequence, i1, i2, obj);
+ if (res == -1) {
+ return NULL;
+ }
+ Py_RETURN_NONE;
+}
+
+static PyObject *
+sequence_del_slice(PyObject* self, PyObject *args)
+{
+ PyObject *sequence;
+ Py_ssize_t i1, i2;
+ if (!PyArg_ParseTuple(args, "Onn", &sequence, &i1, &i2)) {
+ return NULL;
+ }
+
+ int res = PySequence_DelSlice(sequence, i1, i2);
+ if (res == -1) {
+ return NULL;
+ }
+ Py_RETURN_NONE;
+}
static PyObject *
test_pythread_tss_key_state(PyObject *self, PyObject *args)
}
static PyObject *
+eval_get_func_name(PyObject *self, PyObject *func)
+{
+ return PyUnicode_FromString(PyEval_GetFuncName(func));
+}
+
+static PyObject *
+eval_get_func_desc(PyObject *self, PyObject *func)
+{
+ return PyUnicode_FromString(PyEval_GetFuncDesc(func));
+}
+
+static PyObject *
get_feature_macros(PyObject *self, PyObject *Py_UNUSED(args))
{
PyObject *result = PyDict_New();
}
static PyObject *negative_dictoffset(PyObject *, PyObject *);
+
+static PyObject *
+function_get_code(PyObject *self, PyObject *func)
+{
+ PyObject *code = PyFunction_GetCode(func);
+ if (code != NULL) {
+ Py_INCREF(code);
+ return code;
+ } else {
+ return NULL;
+ }
+}
+
+static PyObject *
+function_get_globals(PyObject *self, PyObject *func)
+{
+ PyObject *globals = PyFunction_GetGlobals(func);
+ if (globals != NULL) {
+ Py_INCREF(globals);
+ return globals;
+ } else {
+ return NULL;
+ }
+}
+
+static PyObject *
+function_get_module(PyObject *self, PyObject *func)
+{
+ PyObject *module = PyFunction_GetModule(func);
+ if (module != NULL) {
+ Py_INCREF(module);
+ return module;
+ } else {
+ return NULL;
+ }
+}
+
static PyObject *test_buildvalue_issue38913(PyObject *, PyObject *);
static PyObject *getargs_s_hash_int(PyObject *, PyObject *, PyObject*);
static PyObject *getargs_s_hash_int2(PyObject *, PyObject *, PyObject*);
{"get_mapping_keys", get_mapping_keys, METH_O},
{"get_mapping_values", get_mapping_values, METH_O},
{"get_mapping_items", get_mapping_items, METH_O},
+ {"test_mapping_has_key_string", test_mapping_has_key_string, METH_NOARGS},
+ {"mapping_has_key", mapping_has_key, METH_VARARGS},
+ {"sequence_set_slice", sequence_set_slice, METH_VARARGS},
+ {"sequence_del_slice", sequence_del_slice, METH_VARARGS},
{"test_pythread_tss_key_state", test_pythread_tss_key_state, METH_VARARGS},
{"hamt", new_hamt, METH_NOARGS},
{"bad_get", _PyCFunction_CAST(bad_get), METH_FASTCALL},
{"frame_getgenerator", frame_getgenerator, METH_O, NULL},
{"frame_getbuiltins", frame_getbuiltins, METH_O, NULL},
{"frame_getlasti", frame_getlasti, METH_O, NULL},
+ {"eval_get_func_name", eval_get_func_name, METH_O, NULL},
+ {"eval_get_func_desc", eval_get_func_desc, METH_O, NULL},
{"get_feature_macros", get_feature_macros, METH_NOARGS, NULL},
{"test_code_api", test_code_api, METH_NOARGS, NULL},
{"settrace_to_record", settrace_to_record, METH_O, NULL},
+ {"function_get_code", function_get_code, METH_O, NULL},
+ {"function_get_globals", function_get_globals, METH_O, NULL},
+ {"function_get_module", function_get_module, METH_O, NULL},
{NULL, NULL} /* sentinel */
};
}
/*[clinic input]
+_winapi.UnmapViewOfFile
+
+ address: LPCVOID
+ /
+[clinic start generated code]*/
+
+static PyObject *
+_winapi_UnmapViewOfFile_impl(PyObject *module, LPCVOID address)
+/*[clinic end generated code: output=4f7e18ac75d19744 input=8c4b6119ad9288a3]*/
+{
+ BOOL success;
+
+ Py_BEGIN_ALLOW_THREADS
+ success = UnmapViewOfFile(address);
+ Py_END_ALLOW_THREADS
+
+ if (!success) {
+ return PyErr_SetFromWindowsErr(0);
+ }
+
+ Py_RETURN_NONE;
+}
+
+/*[clinic input]
_winapi.OpenFileMapping -> HANDLE
desired_access: DWORD
_WINAPI_READFILE_METHODDEF
_WINAPI_SETNAMEDPIPEHANDLESTATE_METHODDEF
_WINAPI_TERMINATEPROCESS_METHODDEF
+ _WINAPI_UNMAPVIEWOFFILE_METHODDEF
_WINAPI_VIRTUALQUERYSIZE_METHODDEF
_WINAPI_WAITNAMEDPIPE_METHODDEF
_WINAPI_WAITFORMULTIPLEOBJECTS_METHODDEF
goto error;
}
- Py_INCREF(&PyZoneInfo_ZoneInfoType);
- PyModule_AddObject(m, "ZoneInfo", (PyObject *)&PyZoneInfo_ZoneInfoType);
+ if (PyModule_AddObjectRef(m, "ZoneInfo", (PyObject *)&PyZoneInfo_ZoneInfoType) < 0) {
+ goto error;
+ }
/* Populate imports */
PyObject *_tzpath_module = PyImport_ImportModule("zoneinfo._tzpath");
+/* The audioop module uses the code base in g777.c file of the Sox project.
+ * Source: https://web.archive.org/web/19970716121258/http://www.spies.com/Sox/Archive/soxgamma.tar.gz
+ * Programming the AdLib/Sound Blaster
+ * FM Music Chips
+ * Version 2.0 (24 Feb 1992)
+ *
+ * Copyright (c) 1991, 1992 by Jeffrey S. Lee
+ *
+ * jlee@smylex.uucp
+ *
+ *
+ *
+ * Warranty and Copyright Policy
+ *
+ * This document is provided on an "as-is" basis, and its author makes
+ * no warranty or representation, express or implied, with respect to
+ * its quality performance or fitness for a particular purpose. In no
+ * event will the author of this document be liable for direct, indirect,
+ * special, incidental, or consequential damages arising out of the use
+ * or inability to use the information contained within. Use of this
+ * document is at your own risk.
+ *
+ * This file may be used and copied freely so long as the applicable
+ * copyright notices are retained, and no modifications are made to the
+ * text of the document. No money shall be charged for its distribution
+ * beyond reasonable shipping, handling and duplication costs, nor shall
+ * proprietary changes be made to this document so that it cannot be
+ * distributed freely. This document may not be included in published
+ * material or commercial packages without the written consent of its
+ * author. */
/* audioopmodule - Module to detect peak values in arrays */
}
-/* Code shamelessly stolen from sox, 12.17.7, g711.c
-** (c) Craig Reese, Joe Campbell and Jeff Poskanzer 1989 */
-
-/* From g711.c:
- *
- * December 30, 1994:
- * Functions linear2alaw, linear2ulaw have been updated to correctly
- * convert unquantized 16 bit values.
- * Tables for direct u- to A-law and A- to u-law conversions have been
- * corrected.
- * Borge Lindberg, Center for PersonKommunikation, Aalborg University.
- * bli@cpk.auc.dk
- *
- */
#define BIAS 0x84 /* define the add-in bias for 16 bit samples */
#define CLIP 32635
#define SIGN_BIT (0x80) /* Sign bit for an A-law byte. */
DWORD protect;
DWORD max_size_high;
DWORD max_size_low;
- LPCWSTR name;
+ LPCWSTR name = NULL;
HANDLE _return_value;
if (!_PyArg_ParseStack(args, nargs, "" F_HANDLE "" F_POINTER "kkkO&:CreateFileMapping",
_winapi_CreateJunction(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
{
PyObject *return_value = NULL;
- LPCWSTR src_path;
- LPCWSTR dst_path;
+ LPCWSTR src_path = NULL;
+ LPCWSTR dst_path = NULL;
if (!_PyArg_CheckPositional("CreateJunction", nargs, 2, 2)) {
goto exit;
_winapi_CreateProcess(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
{
PyObject *return_value = NULL;
- const Py_UNICODE *application_name;
+ const Py_UNICODE *application_name = NULL;
PyObject *command_line;
PyObject *proc_attrs;
PyObject *thread_attrs;
BOOL inherit_handles;
DWORD creation_flags;
PyObject *env_mapping;
- const Py_UNICODE *current_directory;
+ const Py_UNICODE *current_directory = NULL;
PyObject *startup_info;
if (!_PyArg_ParseStack(args, nargs, "O&OOOikOO&O:CreateProcess",
return return_value;
}
+PyDoc_STRVAR(_winapi_UnmapViewOfFile__doc__,
+"UnmapViewOfFile($module, address, /)\n"
+"--\n"
+"\n");
+
+#define _WINAPI_UNMAPVIEWOFFILE_METHODDEF \
+ {"UnmapViewOfFile", (PyCFunction)_winapi_UnmapViewOfFile, METH_O, _winapi_UnmapViewOfFile__doc__},
+
+static PyObject *
+_winapi_UnmapViewOfFile_impl(PyObject *module, LPCVOID address);
+
+static PyObject *
+_winapi_UnmapViewOfFile(PyObject *module, PyObject *arg)
+{
+ PyObject *return_value = NULL;
+ LPCVOID address;
+
+ if (!PyArg_Parse(arg, "" F_POINTER ":UnmapViewOfFile", &address)) {
+ goto exit;
+ }
+ return_value = _winapi_UnmapViewOfFile_impl(module, address);
+
+exit:
+ return return_value;
+}
+
PyDoc_STRVAR(_winapi_OpenFileMapping__doc__,
"OpenFileMapping($module, desired_access, inherit_handle, name, /)\n"
"--\n"
PyObject *return_value = NULL;
DWORD desired_access;
BOOL inherit_handle;
- LPCWSTR name;
+ LPCWSTR name = NULL;
HANDLE _return_value;
if (!_PyArg_ParseStack(args, nargs, "kiO&:OpenFileMapping",
exit:
return return_value;
}
-/*[clinic end generated code: output=dfbccec8f11b7433 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=9c08a7371fcf5dd4 input=a9049054013a1b77]*/
PyObject *EventAttributes;
BOOL ManualReset;
BOOL InitialState;
- const Py_UNICODE *Name;
+ const Py_UNICODE *Name = NULL;
if (!_PyArg_ParseStack(args, nargs, "OiiO&:CreateEvent",
&EventAttributes, &ManualReset, &InitialState, _PyUnicode_WideCharString_Opt_Converter, &Name)) {
_overlapped_Overlapped_ConnectPipe(OverlappedObject *self, PyObject *arg)
{
PyObject *return_value = NULL;
- const Py_UNICODE *Address;
+ const Py_UNICODE *Address = NULL;
if (!PyUnicode_Check(arg)) {
_PyArg_BadArgument("ConnectPipe", "argument", "str", arg);
HANDLE ConnectSocket;
PyObject *AddressObj;
- if (!_PyArg_ParseStack(args, nargs, ""F_HANDLE"O:WSAConnect",
- &ConnectSocket, &AddressObj)) {
+ if (!_PyArg_ParseStack(args, nargs, ""F_HANDLE"O!:WSAConnect",
+ &ConnectSocket, &PyTuple_Type, &AddressObj)) {
goto exit;
}
return_value = _overlapped_WSAConnect_impl(module, ConnectSocket, AddressObj);
DWORD flags;
PyObject *AddressObj;
- if (!_PyArg_ParseStack(args, nargs, ""F_HANDLE"y*kO:WSASendTo",
- &handle, &bufobj, &flags, &AddressObj)) {
+ if (!_PyArg_ParseStack(args, nargs, ""F_HANDLE"y*kO!:WSASendTo",
+ &handle, &bufobj, &flags, &PyTuple_Type, &AddressObj)) {
goto exit;
}
return_value = _overlapped_Overlapped_WSASendTo_impl(self, handle, &bufobj, flags, AddressObj);
return return_value;
}
-/*[clinic end generated code: output=b0f15f5c09f1147e input=a9049054013a1b77]*/
+/*[clinic end generated code: output=5023f7748f0e073e input=a9049054013a1b77]*/
"dir_fd may not be implemented on your platform.\n"
" If it is unavailable, using it will raise a NotImplementedError.\n"
"\n"
-"The mode argument is ignored on Windows.");
+"The mode argument is ignored on Windows. Where it is used, the current umask\n"
+"value is first masked out.");
#define OS_MKDIR_METHODDEF \
{"mkdir", _PyCFunction_CAST(os_mkdir), METH_FASTCALL|METH_KEYWORDS, os_mkdir__doc__},
static const char * const _keywords[] = {"command", NULL};
static _PyArg_Parser _parser = {NULL, _keywords, "system", 0};
PyObject *argsbuf[1];
- const Py_UNICODE *command;
+ const Py_UNICODE *command = NULL;
long _return_value;
args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
#ifndef OS_WAITSTATUS_TO_EXITCODE_METHODDEF
#define OS_WAITSTATUS_TO_EXITCODE_METHODDEF
#endif /* !defined(OS_WAITSTATUS_TO_EXITCODE_METHODDEF) */
-/*[clinic end generated code: output=3032d9c5c3aaa165 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=8dd784bf1e41b881 input=a9049054013a1b77]*/
"\n"
"Return the system description of the given signal.\n"
"\n"
-"The return values can be such as \"Interrupt\", \"Segmentation fault\", etc.\n"
-"Returns None if the signal is not recognized.");
+"Returns the description of signal *signalnum*, such as \"Interrupt\"\n"
+"for :const:`SIGINT`. Returns :const:`None` if *signalnum* has no\n"
+"description. Raises :exc:`ValueError` if *signalnum* is invalid.");
#define SIGNAL_STRSIGNAL_METHODDEF \
{"strsignal", (PyCFunction)signal_strsignal, METH_O, signal_strsignal__doc__},
#ifndef SIGNAL_PIDFD_SEND_SIGNAL_METHODDEF
#define SIGNAL_PIDFD_SEND_SIGNAL_METHODDEF
#endif /* !defined(SIGNAL_PIDFD_SEND_SIGNAL_METHODDEF) */
-/*[clinic end generated code: output=6ca1b70310eecdba input=a9049054013a1b77]*/
+/*[clinic end generated code: output=9b3f9f1ae2ac2b94 input=a9049054013a1b77]*/
#ifdef EQFULL
add_errcode("EQFULL", EQFULL, "Interface output queue is full");
#endif
+#ifdef ENOTCAPABLE
+ // WASI extension
+ add_errcode("ENOTCAPABLE", ENOTCAPABLE, "Capabilities insufficient");
+#endif
Py_DECREF(error_dict);
return 0;
Copyright (c) 1998-2000 Thai Open Source Software Center Ltd and Clark Cooper
-Copyright (c) 2001-2019 Expat maintainers
+Copyright (c) 2001-2022 Expat maintainers
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
See http://semver.org.
*/
#define XML_MAJOR_VERSION 2
-#define XML_MINOR_VERSION 4
-#define XML_MICRO_VERSION 7
+#define XML_MINOR_VERSION 5
+#define XML_MICRO_VERSION 0
#ifdef __cplusplus
}
Copyright (c) 2002-2003 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2002-2006 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2003 Greg Stein <gstein@users.sourceforge.net>
- Copyright (c) 2016-2021 Sebastian Pipping <sebastian@pipping.org>
+ Copyright (c) 2016-2022 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2018 Yury Gribov <tetra2005@gmail.com>
Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
Licensed under the MIT license:
#include <limits.h> // ULONG_MAX
-#if defined(_WIN32) && ! defined(__USE_MINGW_ANSI_STDIO)
+#if defined(_WIN32) \
+ && (! defined(__USE_MINGW_ANSI_STDIO) \
+ || (1 - __USE_MINGW_ANSI_STDIO - 1 == 0))
# define EXPAT_FMT_ULL(midpart) "%" midpart "I64u"
# if defined(_WIN64) // Note: modifiers "td" and "zu" do not work for MinGW
# define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "I64d"
* if this code is included and compiled as C++; related GCC warning is:
* warning: use of C++11 long long integer constant [-Wlong-long]
*/
-#define _SIP_ULL(high, low) (((uint64_t)high << 32) | low)
+#define _SIP_ULL(high, low) ((((uint64_t)high) << 32) | (low))
#define SIP_ROTL(x, b) (uint64_t)(((x) << (b)) | ((x) >> (64 - (b))))
-/* fcb1a62fefa945567301146eb98e3ad3413e823a41c4378e84e8b6b6f308d824 (2.4.7+)
+/* 5ab094ffadd6edfc94c3eee53af44a86951f9f1f0933ada3114bbce2bfb02c99 (2.5.0+)
__ __ _
___\ \/ /_ __ __ _| |_
/ _ \\ /| '_ \ / _` | __|
Copyright (c) 2016 Gustavo Grieco <gustavo.grieco@imag.fr>
Copyright (c) 2016 Pascal Cuoq <cuoq@trust-in-soft.com>
Copyright (c) 2016 Ed Schouten <ed@nuxi.nl>
- Copyright (c) 2017-2018 Rhodri James <rhodri@wildebeest.org.uk>
+ Copyright (c) 2017-2022 Rhodri James <rhodri@wildebeest.org.uk>
Copyright (c) 2017 Václav Slavík <vaclav@slavik.io>
Copyright (c) 2017 Viktor Szakats <commit@vsz.me>
Copyright (c) 2017 Chanho Park <chanho61.park@samsung.com>
Copyright (c) 2021 Dong-hee Na <donghee.na@python.org>
Copyright (c) 2022 Samanta Navarro <ferivoz@riseup.net>
Copyright (c) 2022 Jeffrey Walton <noloader@gmail.com>
+ Copyright (c) 2022 Jann Horn <jannh@google.com>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
parserInit(parser, encodingName);
if (encodingName && ! parser->m_protocolEncodingName) {
+ if (dtd) {
+ // We need to stop the upcoming call to XML_ParserFree from happily
+ // destroying parser->m_dtd because the DTD is shared with the parent
+ // parser and the only guard that keeps XML_ParserFree from destroying
+ // parser->m_dtd is parser->m_isParamEntity but it will be set to
+ // XML_TRUE only later in XML_ExternalEntityParserCreate (or not at all).
+ parser->m_dtd = NULL;
+ }
XML_ParserFree(parser);
return NULL;
}
int len;
const char *rawName;
TAG *tag = parser->m_tagStack;
- parser->m_tagStack = tag->parent;
- tag->parent = parser->m_freeTagList;
- parser->m_freeTagList = tag;
rawName = s + enc->minBytesPerChar * 2;
len = XmlNameLength(enc, rawName);
if (len != tag->rawNameLength
*eventPP = rawName;
return XML_ERROR_TAG_MISMATCH;
}
+ parser->m_tagStack = tag->parent;
+ tag->parent = parser->m_freeTagList;
+ parser->m_freeTagList = tag;
--parser->m_tagLevel;
if (parser->m_endElementHandler) {
const XML_Char *localPart;
const XML_Char *storedEncName = NULL;
const ENCODING *newEncoding = NULL;
const char *version = NULL;
- const char *versionend;
+ const char *versionend = NULL;
const XML_Char *storedversion = NULL;
int standalone = -1;
parser->m_handlerArg, parser->m_declElementType->name,
parser->m_declAttributeId->name, parser->m_declAttributeType, 0,
role == XML_ROLE_REQUIRED_ATTRIBUTE_VALUE);
- poolClear(&parser->m_tempPool);
handleDefault = XML_FALSE;
}
}
+ poolClear(&parser->m_tempPool);
break;
case XML_ROLE_DEFAULT_ATTRIBUTE_VALUE:
case XML_ROLE_FIXED_ATTRIBUTE_VALUE:
*
* If 'standalone' is false, the DTD must have no
* parameter entities or we wouldn't have passed the outer
- * 'if' statement. That measn the only entity in the hash
+ * 'if' statement. That means the only entity in the hash
* table is the external subset name "#" which cannot be
* given as a parameter entity name in XML syntax, so the
* lookup must have returned NULL and we don't even reach
if (result != XML_ERROR_NONE)
return result;
- else if (textEnd != next
- && parser->m_parsingStatus.parsing == XML_SUSPENDED) {
+
+ if (textEnd != next && parser->m_parsingStatus.parsing == XML_SUSPENDED) {
entity->processed = (int)(next - (const char *)entity->textPtr);
return result;
- } else {
+ }
+
#ifdef XML_DTD
- entityTrackingOnClose(parser, entity, __LINE__);
+ entityTrackingOnClose(parser, entity, __LINE__);
#endif
- entity->open = XML_FALSE;
- parser->m_openInternalEntities = openEntity->next;
- /* put openEntity back in list of free instances */
- openEntity->next = parser->m_freeInternalEntities;
- parser->m_freeInternalEntities = openEntity;
+ entity->open = XML_FALSE;
+ parser->m_openInternalEntities = openEntity->next;
+ /* put openEntity back in list of free instances */
+ openEntity->next = parser->m_freeInternalEntities;
+ parser->m_freeInternalEntities = openEntity;
+
+ // If there are more open entities we want to stop right here and have the
+ // upcoming call to XML_ResumeParser continue with entity content, or it would
+ // be ignored altogether.
+ if (parser->m_openInternalEntities != NULL
+ && parser->m_parsingStatus.parsing == XML_SUSPENDED) {
+ return XML_ERROR_NONE;
}
#ifdef XML_DTD
{
parser->m_processor = contentProcessor;
/* see externalEntityContentProcessor vs contentProcessor */
- return doContent(parser, parser->m_parentParser ? 1 : 0, parser->m_encoding,
- s, end, nextPtr,
- (XML_Bool)! parser->m_parsingStatus.finalBuffer,
- XML_ACCOUNT_DIRECT);
+ result = doContent(parser, parser->m_parentParser ? 1 : 0,
+ parser->m_encoding, s, end, nextPtr,
+ (XML_Bool)! parser->m_parsingStatus.finalBuffer,
+ XML_ACCOUNT_DIRECT);
+ if (result == XML_ERROR_NONE) {
+ if (! storeRawNames(parser))
+ return XML_ERROR_NO_MEMORY;
+ }
+ return result;
}
}
Copyright (c) 2017 José Gutiérrez de la Concha <jose@zeroc.com>
Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
Copyright (c) 2021 Dong-hee Na <donghee.na@python.org>
+ Copyright (c) 2022 Martin Ettl <ettl.martin78@googlemail.com>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
}
#else
/* c is an ASCII character */
-# define CHAR_MATCHES(enc, p, c) (*(p) == c)
+# define CHAR_MATCHES(enc, p, c) (*(p) == (c))
#endif
#define PREFIX(ident) normal_##ident
((p)[1] == 0 ? ((struct normal_encoding *)(enc))->type[(unsigned char)*(p)] \
: unicode_byte_type((p)[1], (p)[0]))
#define LITTLE2_BYTE_TO_ASCII(p) ((p)[1] == 0 ? (p)[0] : -1)
-#define LITTLE2_CHAR_MATCHES(p, c) ((p)[1] == 0 && (p)[0] == c)
+#define LITTLE2_CHAR_MATCHES(p, c) ((p)[1] == 0 && (p)[0] == (c))
#define LITTLE2_IS_NAME_CHAR_MINBPC(p) \
UCS2_GET_NAMING(namePages, (unsigned char)p[1], (unsigned char)p[0])
#define LITTLE2_IS_NMSTRT_CHAR_MINBPC(p) \
? ((struct normal_encoding *)(enc))->type[(unsigned char)(p)[1]] \
: unicode_byte_type((p)[0], (p)[1]))
#define BIG2_BYTE_TO_ASCII(p) ((p)[0] == 0 ? (p)[1] : -1)
-#define BIG2_CHAR_MATCHES(p, c) ((p)[0] == 0 && (p)[1] == c)
+#define BIG2_CHAR_MATCHES(p, c) ((p)[0] == 0 && (p)[1] == (c))
#define BIG2_IS_NAME_CHAR_MINBPC(p) \
UCS2_GET_NAMING(namePages, (unsigned char)p[0], (unsigned char)p[1])
#define BIG2_IS_NMSTRT_CHAR_MINBPC(p) \
Copyright (c) 2018 Anton Maklakov <antmak.pub@gmail.com>
Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
Copyright (c) 2020 Boris Kolpackov <boris@codesynthesis.com>
+ Copyright (c) 2022 Martin Ettl <ettl.martin78@googlemail.com>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
# define CHECK_NMSTRT_CASE(n, enc, ptr, end, nextTokPtr) \
case BT_LEAD##n: \
- if (end - ptr < n) \
+ if ((end) - (ptr) < (n)) \
return XML_TOK_PARTIAL_CHAR; \
if (IS_INVALID_CHAR(enc, ptr, n) || ! IS_NMSTRT_CHAR(enc, ptr, n)) { \
*nextTokPtr = ptr; \
# define PREFIX(ident) ident
# endif
-# define HAS_CHARS(enc, ptr, end, count) (end - ptr >= count * MINBPC(enc))
+# define HAS_CHARS(enc, ptr, end, count) \
+ ((end) - (ptr) >= ((count)*MINBPC(enc)))
# define HAS_CHAR(enc, ptr, end) HAS_CHARS(enc, ptr, end, 1)
BT_LF, /* line feed = "\n" */
BT_GT, /* greater than = ">" */
BT_QUOT, /* quotation character = "\"" */
- BT_APOS, /* aposthrophe = "'" */
+ BT_APOS, /* apostrophe = "'" */
BT_EQUALS, /* equal sign = "=" */
BT_QUEST, /* question mark = "?" */
BT_EXCL, /* exclamation mark = "!" */
size_t i;
fault_handler_t *handler = NULL;
int save_errno = errno;
+ int found = 0;
if (!fatal_error.enabled)
return;
for (i=0; i < faulthandler_nsignals; i++) {
handler = &faulthandler_handlers[i];
- if (handler->signum == signum)
+ if (handler->signum == signum) {
+ found = 1;
break;
+ }
}
if (handler == NULL) {
/* faulthandler_nsignals == 0 (unlikely) */
/* restore the previous handler */
faulthandler_disable_fatal_handler(handler);
- PUTS(fd, "Fatal Python error: ");
- PUTS(fd, handler->name);
- PUTS(fd, "\n\n");
+ if (found) {
+ PUTS(fd, "Fatal Python error: ");
+ PUTS(fd, handler->name);
+ PUTS(fd, "\n\n");
+ }
+ else {
+ char unknown_signum[23] = {0,};
+ snprintf(unknown_signum, 23, "%d", signum);
+ PUTS(fd, "Fatal Python error from unexpected signum: ");
+ PUTS(fd, unknown_signum);
+ PUTS(fd, "\n\n");
+ }
faulthandler_dump_traceback(fd, fatal_error.all_threads,
fatal_error.interp);
static PyObject *
getpath_basename(PyObject *Py_UNUSED(self), PyObject *args)
{
- const char *path;
- if (!PyArg_ParseTuple(args, "s", &path)) {
+ PyObject *path;
+ if (!PyArg_ParseTuple(args, "U", &path)) {
return NULL;
}
- const char *name = strrchr(path, SEP);
- return PyUnicode_FromString(name ? name + 1 : path);
+ Py_ssize_t end = PyUnicode_GET_LENGTH(path);
+ Py_ssize_t pos = PyUnicode_FindChar(path, SEP, 0, end, -1);
+ if (pos < 0) {
+ return Py_NewRef(path);
+ }
+ return PyUnicode_Substring(path, pos + 1, end);
}
static PyObject *
getpath_dirname(PyObject *Py_UNUSED(self), PyObject *args)
{
- const char *path;
- if (!PyArg_ParseTuple(args, "s", &path)) {
+ PyObject *path;
+ if (!PyArg_ParseTuple(args, "U", &path)) {
return NULL;
}
- const char *name = strrchr(path, SEP);
- if (!name) {
+ Py_ssize_t end = PyUnicode_GET_LENGTH(path);
+ Py_ssize_t pos = PyUnicode_FindChar(path, SEP, 0, end, -1);
+ if (pos < 0) {
return PyUnicode_FromStringAndSize(NULL, 0);
}
- return PyUnicode_FromStringAndSize(path, (name - path));
+ return PyUnicode_Substring(path, 0, pos);
}
}
Py_ssize_t n = PyTuple_GET_SIZE(args);
if (n == 0) {
- return PyUnicode_FromString(NULL);
+ return PyUnicode_FromStringAndSize(NULL, 0);
}
/* Convert all parts to wchar and accumulate max final length */
wchar_t **parts = (wchar_t **)PyMem_Malloc(n * sizeof(wchar_t *));
try:
# Read pyvenv.cfg from one level above executable
pyvenvcfg = readlines(joinpath(venv_prefix, VENV_LANDMARK))
- except FileNotFoundError:
+ except (FileNotFoundError, PermissionError):
# Try the same directory as executable
pyvenvcfg = readlines(joinpath(venv_prefix2, VENV_LANDMARK))
venv_prefix = venv_prefix2
- except FileNotFoundError:
+ except (FileNotFoundError, PermissionError):
venv_prefix = None
pyvenvcfg = []
pass
if not base_executable:
base_executable = joinpath(executable_dir, basename(executable))
+ # It's possible "python" is executed from within a posix venv but that
+ # "python" is not available in the "home" directory as the standard
+ # `make install` does not create it and distros often do not provide it.
+ #
+ # In this case, try to fall back to known alternatives
+ if os_name != 'nt' and not isfile(base_executable):
+ base_exe = basename(executable)
+ for candidate in (DEFAULT_PROGRAM_NAME, f'python{VERSION_MAJOR}.{VERSION_MINOR}'):
+ candidate += EXE_SUFFIX if EXE_SUFFIX else ''
+ if base_exe == candidate:
+ continue
+ candidate = joinpath(executable_dir, candidate)
+ # Only set base_executable if the candidate exists.
+ # If no candidate succeeds, subsequent errors related to
+ # base_executable (like FileNotFoundError) remain in the
+ # context of the original executable name
+ if isfile(candidate):
+ base_executable = candidate
+ break
break
else:
venv_prefix = None
# File exists but is empty
platstdlib_dir = real_executable_dir
build_prefix = joinpath(real_executable_dir, VPATH)
- except FileNotFoundError:
+ except (FileNotFoundError, PermissionError):
if isfile(joinpath(real_executable_dir, BUILD_LANDMARK)):
build_prefix = joinpath(real_executable_dir, VPATH)
if os_name == 'nt':
# Detect exec_prefix by searching from executable for the platstdlib_dir
if PLATSTDLIB_LANDMARK and not exec_prefix:
if executable_dir:
- exec_prefix = search_up(executable_dir, PLATSTDLIB_LANDMARK, test=isdir)
- if not exec_prefix:
- if EXEC_PREFIX:
- exec_prefix = EXEC_PREFIX
- if not isdir(joinpath(exec_prefix, PLATSTDLIB_LANDMARK)):
- warn('Could not find platform dependent libraries <exec_prefix>')
+ if os_name == 'nt':
+ # QUIRK: For compatibility and security, do not search for DLLs
+ # directory. The fallback below will cover it
+ exec_prefix = executable_dir
+ else:
+ exec_prefix = search_up(executable_dir, PLATSTDLIB_LANDMARK, test=isdir)
+ if not exec_prefix and EXEC_PREFIX:
+ exec_prefix = EXEC_PREFIX
+ if not exec_prefix or not isdir(joinpath(exec_prefix, PLATSTDLIB_LANDMARK)):
+ if os_name == 'nt':
+ # QUIRK: If DLLs is missing on Windows, don't warn, just assume
+ # that it's all the same as prefix.
+ # gh-98790: We set platstdlib_dir here to avoid adding "DLLs" into
+ # sys.path when it doesn't exist, which would give site-packages
+ # precedence over executable_dir, which is *probably* where our PYDs
+ # live. Ideally, whoever changes our layout will tell us what the
+ # layout is, but in the past this worked, so it should keep working.
+ platstdlib_dir = exec_prefix = prefix
else:
warn('Could not find platform dependent libraries <exec_prefix>')
+
# Fallback: assume exec_prefix == prefix
if not exec_prefix:
exec_prefix = prefix
else:
library_dir = executable_dir
pythonpath.append(joinpath(library_dir, ZIP_LANDMARK))
- elif build_prefix or venv_prefix:
+ elif build_prefix:
# QUIRK: POSIX uses the default prefix when in the build directory
- # or a venv
pythonpath.append(joinpath(PREFIX, ZIP_LANDMARK))
else:
pythonpath.append(joinpath(prefix, ZIP_LANDMARK))
pythonpath.append(platstdlib_dir)
if stdlib_dir:
pythonpath.append(stdlib_dir)
- pythonpath.append(executable_dir)
+ if executable_dir not in pythonpath:
+ pythonpath.append(executable_dir)
else:
if stdlib_dir:
pythonpath.append(stdlib_dir)
PyErr_SetString(PyExc_TypeError, "state is not a tuple");
return NULL;
}
+ // The second item can be 1/0 in old pickles and True/False in new pickles
if (!PyArg_ParseTuple(state, "O!i", &PyList_Type, &saved, &firstpass)) {
return NULL;
}
if (m != n) {
PyErr_SetString(PyExc_ValueError,
"both points must have the same number of dimensions");
- return NULL;
-
+ goto error_exit;
}
if (n > NUM_STACK_ELEMS) {
diffs = (double *) PyObject_Malloc(n * sizeof(double));
if (diffs == NULL) {
- return PyErr_NoMemory();
+ PyErr_NoMemory();
+ goto error_exit;
}
}
for (i=0 ; i<n ; i++) {
_overlapped.WSAConnect
client_handle as ConnectSocket: HANDLE
- address_as_bytes as AddressObj: object
+ address_as_bytes as AddressObj: object(subclass_of='&PyTuple_Type')
/
Bind a remote address to a connectionless (UDP) socket.
static PyObject *
_overlapped_WSAConnect_impl(PyObject *module, HANDLE ConnectSocket,
PyObject *AddressObj)
-/*[clinic end generated code: output=ea0b4391e94dad63 input=169f8075e9ae7fa4]*/
+/*[clinic end generated code: output=ea0b4391e94dad63 input=7cf65313d49c015a]*/
{
char AddressBuf[sizeof(struct sockaddr_in6)];
SOCKADDR *Address = (SOCKADDR*)AddressBuf;
handle: HANDLE
buf as bufobj: Py_buffer
flags: DWORD
- address_as_bytes as AddressObj: object
+ address_as_bytes as AddressObj: object(subclass_of='&PyTuple_Type')
/
Start overlapped sendto over a connectionless (UDP) socket.
_overlapped_Overlapped_WSASendTo_impl(OverlappedObject *self, HANDLE handle,
Py_buffer *bufobj, DWORD flags,
PyObject *AddressObj)
-/*[clinic end generated code: output=3cdedc4cfaeb70cd input=b7c1749a62e2e374]*/
+/*[clinic end generated code: output=3cdedc4cfaeb70cd input=31f44cd4ab92fc33]*/
{
char AddressBuf[sizeof(struct sockaddr_in6)];
SOCKADDR *Address = (SOCKADDR*)AddressBuf;
#ifdef MS_WINDOWS
# include <windows.h>
# include <pathcch.h>
+# include <lmcons.h> // UNLEN
+# include "osdefs.h" // SEP
+# define HAVE_SYMLINK
#endif
#ifdef __VXWORKS__
# define HAVE_SYMLINKAT_RUNTIME (symlinkat != NULL)
# endif
+# ifdef HAVE_UTIMENSAT
+# define HAVE_UTIMENSAT_RUNTIME (utimensat != NULL)
+# endif
+
+# ifdef HAVE_FUTIMENS
+# define HAVE_FUTIMENS_RUNTIME (futimens != NULL)
+# endif
+
+# ifdef HAVE_PWRITEV
+# define HAVE_PWRITEV_RUNTIME (pwritev != NULL)
+# endif
+
#endif
#ifdef HAVE_FUTIMESAT
# ifdef HAVE_PROCESS_H
# include <process.h>
# endif
-# ifndef IO_REPARSE_TAG_SYMLINK
-# define IO_REPARSE_TAG_SYMLINK (0xA000000CL)
-# endif
-# ifndef IO_REPARSE_TAG_MOUNT_POINT
-# define IO_REPARSE_TAG_MOUNT_POINT (0xA0000003L)
-# endif
-# include "osdefs.h" // SEP
# include <malloc.h>
-# include <windows.h>
-# include <shellapi.h> // ShellExecute()
-# include <lmcons.h> // UNLEN
-# define HAVE_SYMLINK
#endif /* _MSC_VER */
#ifndef MAXPATHLEN
dir_fd may not be implemented on your platform.
If it is unavailable, using it will raise a NotImplementedError.
-The mode argument is ignored on Windows.
+The mode argument is ignored on Windows. Where it is used, the current umask
+value is first masked out.
[clinic start generated code]*/
static PyObject *
os_mkdir_impl(PyObject *module, path_t *path, int mode, int dir_fd)
-/*[clinic end generated code: output=a70446903abe821f input=e965f68377e9b1ce]*/
+/*[clinic end generated code: output=a70446903abe821f input=a61722e1576fab03]*/
{
int result;
#ifdef HAVE_MKDIRAT
os_sched_yield_impl(PyObject *module)
/*[clinic end generated code: output=902323500f222cac input=e54d6f98189391d4]*/
{
- if (sched_yield())
+ int result;
+ Py_BEGIN_ALLOW_THREADS
+ result = sched_yield();
+ Py_END_ALLOW_THREADS
+ if (result < 0) {
return posix_error();
+ }
Py_RETURN_NONE;
}
} while (n < 0 && errno == EINTR && !(async_err = PyErr_CheckSignals()));
#else
do {
-#ifdef __APPLE__
+#if defined(__APPLE__) && defined(__clang__)
/* This entire function will be removed from the module dict when the API
* is not available.
*/
Py_END_ALLOW_THREADS
} while (n < 0 && errno == EINTR && !(async_err = PyErr_CheckSignals()));
-#ifdef __APPLE__
+#if defined(__APPLE__) && defined(__clang__)
#pragma clang diagnostic pop
#endif
} while (result < 0 && errno == EINTR && !(async_err = PyErr_CheckSignals()));
#else
-#ifdef __APPLE__
+#if defined(__APPLE__) && defined(__clang__)
/* This entire function will be removed from the module dict when the API
* is not available.
*/
Py_END_ALLOW_THREADS
} while (result < 0 && errno == EINTR && !(async_err = PyErr_CheckSignals()));
-#ifdef __APPLE__
+#if defined(__APPLE__) && defined(__clang__)
#pragma clang diagnostic pop
#endif
Py_ssize_t len;
const char *ptr;
- str = PyObject_CallFunction(meth, "n", buf_size);
+ str = PyObject_CallFunction(meth, "i", buf_size);
if (str == NULL)
goto error;
rl_attempted_completion_function = flex_complete;
/* Set Python word break characters */
completer_word_break_characters =
- rl_completer_word_break_characters =
strdup(" \t\n`~!@#$%^&*()-=+[{]}\\|;:'\",<>/?");
/* All nonalphanums except '.' */
+ rl_completer_word_break_characters = completer_word_break_characters;
mod_state->begidx = PyLong_FromLong(0L);
mod_state->endidx = PyLong_FromLong(0L);
Return the system description of the given signal.
-The return values can be such as "Interrupt", "Segmentation fault", etc.
-Returns None if the signal is not recognized.
+Returns the description of signal *signalnum*, such as "Interrupt"
+for :const:`SIGINT`. Returns :const:`None` if *signalnum* has no
+description. Raises :exc:`ValueError` if *signalnum* is invalid.
[clinic start generated code]*/
static PyObject *
signal_strsignal_impl(PyObject *module, int signalnum)
-/*[clinic end generated code: output=44e12e1e3b666261 input=b77914b03f856c74]*/
+/*[clinic end generated code: output=44e12e1e3b666261 input=238b335847778bc0]*/
{
const char *res;
_Py_atomic_store(&is_tripped, 0);
_PyInterpreterFrame *frame = tstate->cframe->current_frame;
+ while (frame && _PyFrame_IsIncomplete(frame)) {
+ frame = frame->previous;
+ }
signal_state_t *state = &signal_global_state;
for (int i = 1; i < Py_NSIG; i++) {
if (!_Py_atomic_load_relaxed(&Handlers[i].tripped)) {
*/
PyObject *ident = S_ident_o;
Py_XINCREF(ident);
+#ifdef __APPLE__
+ // gh-98178: On macOS, libc syslog() is not thread-safe
+ syslog(priority, "%s", message);
+#else
Py_BEGIN_ALLOW_THREADS;
syslog(priority, "%s", message);
Py_END_ALLOW_THREADS;
+#endif
Py_XDECREF(ident);
Py_RETURN_NONE;
}
if (!PyArg_ParseTuple(args, "l;mask for priority", &maskpri))
return NULL;
- if (PySys_Audit("syslog.setlogmask", "(O)", args ? args : Py_None) < 0) {
+ if (PySys_Audit("syslog.setlogmask", "l", maskpri) < 0) {
return NULL;
}
omaskpri = setlogmask(maskpri);
{
termiosmodulestate *state = PyModule_GetState(module);
struct termios mode;
- if (tcgetattr(fd, &mode) == -1) {
+ int r;
+
+ Py_BEGIN_ALLOW_THREADS
+ r = tcgetattr(fd, &mode);
+ Py_END_ALLOW_THREADS
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
/* Get the old mode, in case there are any hidden fields... */
termiosmodulestate *state = PyModule_GetState(module);
struct termios mode;
- if (tcgetattr(fd, &mode) == -1) {
+ int r;
+
+ Py_BEGIN_ALLOW_THREADS
+ r = tcgetattr(fd, &mode);
+ Py_END_ALLOW_THREADS
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
return PyErr_SetFromErrno(state->TermiosError);
if (cfsetospeed(&mode, (speed_t) ospeed) == -1)
return PyErr_SetFromErrno(state->TermiosError);
- if (tcsetattr(fd, when, &mode) == -1)
+
+ Py_BEGIN_ALLOW_THREADS
+ r = tcsetattr(fd, when, &mode);
+ Py_END_ALLOW_THREADS
+
+ if (r == -1)
return PyErr_SetFromErrno(state->TermiosError);
Py_RETURN_NONE;
/*[clinic end generated code: output=5945f589b5d3ac66 input=dc2f32417691f8ed]*/
{
termiosmodulestate *state = PyModule_GetState(module);
- if (tcsendbreak(fd, duration) == -1) {
+ int r;
+
+ Py_BEGIN_ALLOW_THREADS
+ r = tcsendbreak(fd, duration);
+ Py_END_ALLOW_THREADS
+
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
/*[clinic end generated code: output=5fd86944c6255955 input=c99241b140b32447]*/
{
termiosmodulestate *state = PyModule_GetState(module);
- if (tcdrain(fd) == -1) {
+ int r;
+
+ Py_BEGIN_ALLOW_THREADS
+ r = tcdrain(fd);
+ Py_END_ALLOW_THREADS
+
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
/*[clinic end generated code: output=2424f80312ec2f21 input=0f7d08122ddc07b5]*/
{
termiosmodulestate *state = PyModule_GetState(module);
- if (tcflush(fd, queue) == -1) {
+ int r;
+
+ Py_BEGIN_ALLOW_THREADS
+ r = tcflush(fd, queue);
+ Py_END_ALLOW_THREADS
+
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
/*[clinic end generated code: output=afd10928e6ea66eb input=c6aff0640b6efd9c]*/
{
termiosmodulestate *state = PyModule_GetState(module);
- if (tcflow(fd, action) == -1) {
+ int r;
+
+ Py_BEGIN_ALLOW_THREADS
+ r = tcflow(fd, action);
+ Py_END_ALLOW_THREADS
+
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
#if defined(TIOCGWINSZ)
termiosmodulestate *state = PyModule_GetState(module);
struct winsize w;
- if (ioctl(fd, TIOCGWINSZ, &w) == -1) {
+ int r;
+
+ Py_BEGIN_ALLOW_THREADS
+ r = ioctl(fd, TIOCGWINSZ, &w);
+ Py_END_ALLOW_THREADS
+
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
#elif defined(TIOCGSIZE)
termiosmodulestate *state = PyModule_GetState(module);
struct ttysize s;
- if (ioctl(fd, TIOCGSIZE, &s) == -1) {
+ int r;
+
+ Py_BEGIN_ALLOW_THREADS
+ r = ioctl(fd, TIOCGSIZE, &s);
+ Py_END_ALLOW_THREADS
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
return NULL;
}
- if (ioctl(fd, TIOCSWINSZ, &w) == -1) {
+ int r;
+ Py_BEGIN_ALLOW_THREADS
+ r = ioctl(fd, TIOCSWINSZ, &w);
+ Py_END_ALLOW_THREADS
+
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
Py_RETURN_NONE;
#elif defined(TIOCGSIZE) && defined(TIOCSSIZE)
struct ttysize s;
+ int r;
/* Get the old ttysize because it might have more fields. */
- if (ioctl(fd, TIOCGSIZE, &s) == -1) {
+ Py_BEGIN_ALLOW_THREADS
+ r = ioctl(fd, TIOCGSIZE, &s);
+ Py_END_ALLOW_THREADS
+
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
return NULL;
}
- if (ioctl(fd, TIOCSSIZE, &s) == -1) {
+ Py_BEGIN_ALLOW_THREADS
+ r = ioctl(fd, TIOCSSIZE, &s);
+ Py_END_ALLOW_THREADS
+
+ if (r == -1) {
return PyErr_SetFromErrno(state->TermiosError);
}
exceptiontable);
}
-static const char assert0[6] = {
+// NOTE: When modifying the construction of PyCode_NewEmpty, please also change
+// test.test_code.CodeLocationTest.test_code_new_empty to keep it in sync!
+
+static const uint8_t assert0[6] = {
RESUME, 0,
LOAD_ASSERTION_ERROR, 0,
RAISE_VARARGS, 1
};
+static const uint8_t linetable[2] = {
+ (1 << 7) // New entry.
+ | (PY_CODE_LOCATION_INFO_NO_COLUMNS << 3)
+ | (3 - 1), // Three code units.
+ 0, // Offset from co_firstlineno.
+};
+
PyCodeObject *
PyCode_NewEmpty(const char *filename, const char *funcname, int firstlineno)
{
PyObject *filename_ob = NULL;
PyObject *funcname_ob = NULL;
PyObject *code_ob = NULL;
+ PyObject *linetable_ob = NULL;
PyCodeObject *result = NULL;
nulltuple = PyTuple_New(0);
if (filename_ob == NULL) {
goto failed;
}
- code_ob = PyBytes_FromStringAndSize(assert0, 6);
+ code_ob = PyBytes_FromStringAndSize((const char *)assert0, 6);
if (code_ob == NULL) {
goto failed;
}
+ linetable_ob = PyBytes_FromStringAndSize((const char *)linetable, 2);
+ if (linetable_ob == NULL) {
+ goto failed;
+ }
#define emptystring (PyObject *)&_Py_SINGLETON(bytes_empty)
struct _PyCodeConstructor con = {
.qualname = funcname_ob,
.code = code_ob,
.firstlineno = firstlineno,
- .linetable = emptystring,
+ .linetable = linetable_ob,
.consts = nulltuple,
.names = nulltuple,
.localsplusnames = nulltuple,
Py_XDECREF(funcname_ob);
Py_XDECREF(filename_ob);
Py_XDECREF(code_ob);
+ Py_XDECREF(linetable_ob);
return result;
}
// see pycore_object.h
#if defined(__EMSCRIPTEN__) && defined(PY_CALL_TRAMPOLINE)
#include <emscripten.h>
-EM_JS(PyObject*, descr_set_trampoline_call, (setter set, PyObject *obj, PyObject *value, void *closure), {
+EM_JS(int, descr_set_trampoline_call, (setter set, PyObject *obj, PyObject *value, void *closure), {
return wasmTable.get(set)(obj, value, closure);
});
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
- descr_methods, /* tp_methods */
+ 0, /* tp_methods */
descr_members, /* tp_members */
method_getset, /* tp_getset */
0, /* tp_base */
PyTypeObject *tp = Py_TYPE(self);
assert(Py_TYPE(self)->tp_flags & Py_TPFLAGS_MANAGED_DICT);
PyDictValues **values_ptr = _PyObject_ValuesPointer(self);
- if (*values_ptr == NULL) {
+ PyDictValues *values = *values_ptr;
+ if (values == NULL) {
return;
}
+ *values_ptr = NULL;
PyDictKeysObject *keys = CACHED_KEYS(tp);
for (Py_ssize_t i = 0; i < keys->dk_nentries; i++) {
- Py_XDECREF((*values_ptr)->values[i]);
+ Py_XDECREF(values->values[i]);
}
- free_values(*values_ptr);
+ free_values(values);
}
PyObject *
return NULL;
}
while (PyDict_Next(state, &i, &d_key, &d_value)) {
- if (PyObject_SetAttr(self, d_key, d_value) < 0)
+ Py_INCREF(d_key);
+ Py_INCREF(d_value);
+ int res = PyObject_SetAttr(self, d_key, d_value);
+ Py_DECREF(d_value);
+ Py_DECREF(d_key);
+ if (res < 0) {
return NULL;
+ }
}
}
Py_RETURN_NONE;
}
}
else {
- /* Do nothing - we don't interfere with subclasses */
+ /* user-defined subclass */
+ if (nested_base_exceptions) {
+ int nonbase = PyObject_IsSubclass((PyObject*)cls, PyExc_Exception);
+ if (nonbase == -1) {
+ goto error;
+ }
+ else if (nonbase == 1) {
+ PyErr_Format(PyExc_TypeError,
+ "Cannot nest BaseExceptions in '%.200s'",
+ cls->tp_name);
+ goto error;
+ }
+ }
}
if (!cls) {
EXCEPTION_GROUP_MATCH_BY_TYPE = 0,
/* A PyFunction returning True for matching exceptions */
EXCEPTION_GROUP_MATCH_BY_PREDICATE = 1,
- /* A set of leaf exceptions to include in the result.
+ /* A set of the IDs of leaf exceptions to include in the result.
* This matcher type is used internally by the interpreter
* to construct reraised exceptions.
*/
- EXCEPTION_GROUP_MATCH_INSTANCES = 2
+ EXCEPTION_GROUP_MATCH_INSTANCE_IDS = 2
} _exceptiongroup_split_matcher_type;
static int
Py_DECREF(exc_matches);
return is_true;
}
- case EXCEPTION_GROUP_MATCH_INSTANCES: {
+ case EXCEPTION_GROUP_MATCH_INSTANCE_IDS: {
assert(PySet_Check(matcher_value));
if (!_PyBaseExceptionGroup_Check(exc)) {
- return PySet_Contains(matcher_value, exc);
+ PyObject *exc_id = PyLong_FromVoidPtr(exc);
+ if (exc_id == NULL) {
+ return -1;
+ }
+ int res = PySet_Contains(matcher_value, exc_id);
+ Py_DECREF(exc_id);
+ return res;
}
return 0;
}
}
static int
-collect_exception_group_leaves(PyObject *exc, PyObject *leaves)
+collect_exception_group_leaf_ids(PyObject *exc, PyObject *leaf_ids)
{
if (Py_IsNone(exc)) {
return 0;
}
assert(PyExceptionInstance_Check(exc));
- assert(PySet_Check(leaves));
+ assert(PySet_Check(leaf_ids));
- /* Add all leaf exceptions in exc to the leaves set */
+ /* Add IDs of all leaf exceptions in exc to the leaf_ids set */
if (!_PyBaseExceptionGroup_Check(exc)) {
- if (PySet_Add(leaves, exc) < 0) {
+ PyObject *exc_id = PyLong_FromVoidPtr(exc);
+ if (exc_id == NULL) {
return -1;
}
- return 0;
+ int res = PySet_Add(leaf_ids, exc_id);
+ Py_DECREF(exc_id);
+ return res;
}
PyBaseExceptionGroupObject *eg = _PyBaseExceptionGroupObject_cast(exc);
Py_ssize_t num_excs = PyTuple_GET_SIZE(eg->excs);
/* recursive calls */
for (Py_ssize_t i = 0; i < num_excs; i++) {
PyObject *e = PyTuple_GET_ITEM(eg->excs, i);
- if (_Py_EnterRecursiveCall(" in collect_exception_group_leaves")) {
+ if (_Py_EnterRecursiveCall(" in collect_exception_group_leaf_ids")) {
return -1;
}
- int res = collect_exception_group_leaves(e, leaves);
+ int res = collect_exception_group_leaf_ids(e, leaf_ids);
_Py_LeaveRecursiveCall();
if (res < 0) {
return -1;
assert(_PyBaseExceptionGroup_Check(eg));
assert(PyList_CheckExact(keep));
- PyObject *leaves = PySet_New(NULL);
- if (!leaves) {
+ PyObject *leaf_ids = PySet_New(NULL);
+ if (!leaf_ids) {
return NULL;
}
PyObject *e = PyList_GET_ITEM(keep, i);
assert(e != NULL);
assert(_PyBaseExceptionGroup_Check(e));
- if (collect_exception_group_leaves(e, leaves) < 0) {
- Py_DECREF(leaves);
+ if (collect_exception_group_leaf_ids(e, leaf_ids) < 0) {
+ Py_DECREF(leaf_ids);
return NULL;
}
}
_exceptiongroup_split_result split_result;
bool construct_rest = false;
int err = exceptiongroup_split_recursive(
- eg, EXCEPTION_GROUP_MATCH_INSTANCES, leaves,
+ eg, EXCEPTION_GROUP_MATCH_INSTANCE_IDS, leaf_ids,
construct_rest, &split_result);
- Py_DECREF(leaves);
+ Py_DECREF(leaf_ids);
if (err < 0) {
return NULL;
}
ADD_ERRNO(InterruptedError, EINTR);
ADD_ERRNO(PermissionError, EACCES);
ADD_ERRNO(PermissionError, EPERM);
+#ifdef ENOTCAPABLE
+ // Extension for WASI capability-based security. Process lacks
+ // capability to access a resource.
+ ADD_ERRNO(PermissionError, ENOTCAPABLE);
+#endif
ADD_ERRNO(ProcessLookupError, ESRCH);
ADD_ERRNO(TimeoutError, ETIMEDOUT);
static PyFrameState
_PyFrame_GetState(PyFrameObject *frame)
{
+ assert(!_PyFrame_IsIncomplete(frame->f_frame));
if (frame->f_frame->stacktop == 0) {
return FRAME_CLEARED;
}
init_frame((_PyInterpreterFrame *)f->_f_frame_data, func, locals);
f->f_frame = (_PyInterpreterFrame *)f->_f_frame_data;
f->f_frame->owner = FRAME_OWNED_BY_FRAME_OBJECT;
+ // This frame needs to be "complete", so pretend that the first RESUME ran:
+ f->f_frame->prev_instr = _PyCode_CODE(code) + code->_co_firsttraceable;
+ assert(!_PyFrame_IsIncomplete(f->f_frame));
Py_DECREF(func);
_PyObject_GC_TRACK(f);
return f;
int
PyFrame_FastToLocalsWithError(PyFrameObject *f)
{
+ assert(!_PyFrame_IsIncomplete(f->f_frame));
if (f == NULL) {
PyErr_BadInternalCall();
return -1;
PyFrame_FastToLocals(PyFrameObject *f)
{
int res;
-
+ assert(!_PyFrame_IsIncomplete(f->f_frame));
assert(!PyErr_Occurred());
res = PyFrame_FastToLocalsWithError(f);
void
PyFrame_LocalsToFast(PyFrameObject *f, int clear)
{
+ assert(!_PyFrame_IsIncomplete(f->f_frame));
if (f && f->f_fast_as_locals && _PyFrame_GetState(f) != FRAME_CLEARED) {
_PyFrame_LocalsToFast(f->f_frame, clear);
f->f_fast_as_locals = 0;
int _PyFrame_IsEntryFrame(PyFrameObject *frame)
{
assert(frame != NULL);
+ assert(!_PyFrame_IsIncomplete(frame->f_frame));
return frame->f_frame->is_entry;
}
PyFrame_GetCode(PyFrameObject *frame)
{
assert(frame != NULL);
+ assert(!_PyFrame_IsIncomplete(frame->f_frame));
PyCodeObject *code = frame->f_frame->f_code;
assert(code != NULL);
Py_INCREF(code);
PyFrame_GetBack(PyFrameObject *frame)
{
assert(frame != NULL);
+ assert(!_PyFrame_IsIncomplete(frame->f_frame));
PyFrameObject *back = frame->f_back;
if (back == NULL) {
_PyInterpreterFrame *prev = frame->f_frame->previous;
PyObject*
PyFrame_GetLocals(PyFrameObject *frame)
{
+ assert(!_PyFrame_IsIncomplete(frame->f_frame));
return frame_getlocals(frame, NULL);
}
PyObject*
PyFrame_GetGlobals(PyFrameObject *frame)
{
+ assert(!_PyFrame_IsIncomplete(frame->f_frame));
return frame_getglobals(frame, NULL);
}
PyObject*
PyFrame_GetBuiltins(PyFrameObject *frame)
{
+ assert(!_PyFrame_IsIncomplete(frame->f_frame));
return frame_getbuiltins(frame, NULL);
}
int
PyFrame_GetLasti(PyFrameObject *frame)
{
+ assert(!_PyFrame_IsIncomplete(frame->f_frame));
int lasti = _PyInterpreterFrame_LASTI(frame->f_frame);
if (lasti < 0) {
return -1;
PyObject *
PyFrame_GetGenerator(PyFrameObject *frame)
{
+ assert(!_PyFrame_IsIncomplete(frame->f_frame));
if (frame->f_frame->owner != FRAME_OWNED_BY_GENERATOR) {
return NULL;
}
}
Py_SETREF(op->func_annotations, ann_dict);
}
- Py_INCREF(op->func_annotations);
assert(PyDict_Check(op->func_annotations));
return op->func_annotations;
}
if (op->func_annotations == NULL)
return NULL;
}
- return func_get_annotation_dict(op);
+ PyObject *d = func_get_annotation_dict(op);
+ if (d) {
+ Py_INCREF(d);
+ }
+ return d;
}
static int
}
for (Py_ssize_t iarg = 0, jarg = 0; iarg < nargs; iarg++) {
PyObject *arg = PyTuple_GET_ITEM(args, iarg);
+ if (PyType_Check(arg)) {
+ Py_INCREF(arg);
+ PyTuple_SET_ITEM(newargs, jarg, arg);
+ jarg++;
+ continue;
+ }
+
int unpack = _is_unpacked_typevartuple(arg);
if (unpack < 0) {
Py_DECREF(newargs);
tsize = -tsize;
}
size_t size = _PyObject_VAR_SIZE(tp, tsize);
+ assert(size <= (size_t)PY_SSIZE_T_MAX);
+ dictoffset += (Py_ssize_t)size;
- dictoffset += (long)size;
_PyObject_ASSERT(obj, dictoffset > 0);
_PyObject_ASSERT(obj, dictoffset % SIZEOF_VOID_P == 0);
}
* will be living in full pools -- would be a shame to miss them.
*/
for (i = 0; i < maxarenas; ++i) {
- uint j;
uintptr_t base = arenas[i].address;
/* Skip arenas which are not allocated. */
/* visit every pool in the arena */
assert(base <= (uintptr_t) arenas[i].pool_address);
- for (j = 0; base < (uintptr_t) arenas[i].pool_address;
- ++j, base += POOL_SIZE) {
+ for (; base < (uintptr_t) arenas[i].pool_address; base += POOL_SIZE) {
poolp p = (poolp)base;
const uint sz = p->szidx;
uint freeblocks;
int
_PyUnicode_Equal(PyObject *str1, PyObject *str2)
{
- assert(PyUnicode_CheckExact(str1));
- assert(PyUnicode_CheckExact(str2));
+ assert(PyUnicode_Check(str1));
+ assert(PyUnicode_Check(str2));
if (str1 == str2) {
return 1;
}
{
PyObject *return_value = NULL;
int field;
- const Py_UNICODE *value;
+ const Py_UNICODE *value = NULL;
if (!_PyArg_CheckPositional("SetString", nargs, 2, 2)) {
goto exit;
{
PyObject *return_value = NULL;
int field;
- const Py_UNICODE *value;
+ const Py_UNICODE *value = NULL;
if (!_PyArg_CheckPositional("SetStream", nargs, 2, 2)) {
goto exit;
_msi_Database_OpenView(msiobj *self, PyObject *arg)
{
PyObject *return_value = NULL;
- const Py_UNICODE *sql;
+ const Py_UNICODE *sql = NULL;
if (!PyUnicode_Check(arg)) {
_PyArg_BadArgument("OpenView", "argument", "str", arg);
_msi_OpenDatabase(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
{
PyObject *return_value = NULL;
- const Py_UNICODE *path;
+ const Py_UNICODE *path = NULL;
int persist;
if (!_PyArg_CheckPositional("OpenDatabase", nargs, 2, 2)) {
exit:
return return_value;
}
-/*[clinic end generated code: output=d7eb07e6bfcdc13f input=a9049054013a1b77]*/
+/*[clinic end generated code: output=276175d60fbfc956 input=a9049054013a1b77]*/
winreg_ConnectRegistry(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
{
PyObject *return_value = NULL;
- const Py_UNICODE *computer_name;
+ const Py_UNICODE *computer_name = NULL;
HKEY key;
HKEY _return_value;
{
PyObject *return_value = NULL;
HKEY key;
- const Py_UNICODE *sub_key;
+ const Py_UNICODE *sub_key = NULL;
HKEY _return_value;
if (!_PyArg_CheckPositional("CreateKey", nargs, 2, 2)) {
static const char * const _keywords[] = {"key", "sub_key", "reserved", "access", NULL};
static _PyArg_Parser _parser = {"O&O&|ii:CreateKeyEx", _keywords, 0};
HKEY key;
- const Py_UNICODE *sub_key;
+ const Py_UNICODE *sub_key = NULL;
int reserved = 0;
REGSAM access = KEY_WRITE;
HKEY _return_value;
{
PyObject *return_value = NULL;
HKEY key;
- const Py_UNICODE *sub_key;
+ const Py_UNICODE *sub_key = NULL;
if (!_PyArg_CheckPositional("DeleteKey", nargs, 2, 2)) {
goto exit;
static const char * const _keywords[] = {"key", "sub_key", "access", "reserved", NULL};
static _PyArg_Parser _parser = {"O&O&|ii:DeleteKeyEx", _keywords, 0};
HKEY key;
- const Py_UNICODE *sub_key;
+ const Py_UNICODE *sub_key = NULL;
REGSAM access = KEY_WOW64_64KEY;
int reserved = 0;
{
PyObject *return_value = NULL;
HKEY key;
- const Py_UNICODE *value;
+ const Py_UNICODE *value = NULL;
if (!_PyArg_CheckPositional("DeleteValue", nargs, 2, 2)) {
goto exit;
winreg_ExpandEnvironmentStrings(PyObject *module, PyObject *arg)
{
PyObject *return_value = NULL;
- const Py_UNICODE *string;
+ const Py_UNICODE *string = NULL;
if (!PyUnicode_Check(arg)) {
_PyArg_BadArgument("ExpandEnvironmentStrings", "argument", "str", arg);
{
PyObject *return_value = NULL;
HKEY key;
- const Py_UNICODE *sub_key;
- const Py_UNICODE *file_name;
+ const Py_UNICODE *sub_key = NULL;
+ const Py_UNICODE *file_name = NULL;
if (!_PyArg_CheckPositional("LoadKey", nargs, 3, 3)) {
goto exit;
static const char * const _keywords[] = {"key", "sub_key", "reserved", "access", NULL};
static _PyArg_Parser _parser = {"O&O&|ii:OpenKey", _keywords, 0};
HKEY key;
- const Py_UNICODE *sub_key;
+ const Py_UNICODE *sub_key = NULL;
int reserved = 0;
REGSAM access = KEY_READ;
HKEY _return_value;
static const char * const _keywords[] = {"key", "sub_key", "reserved", "access", NULL};
static _PyArg_Parser _parser = {"O&O&|ii:OpenKeyEx", _keywords, 0};
HKEY key;
- const Py_UNICODE *sub_key;
+ const Py_UNICODE *sub_key = NULL;
int reserved = 0;
REGSAM access = KEY_READ;
HKEY _return_value;
{
PyObject *return_value = NULL;
HKEY key;
- const Py_UNICODE *sub_key;
+ const Py_UNICODE *sub_key = NULL;
if (!_PyArg_CheckPositional("QueryValue", nargs, 2, 2)) {
goto exit;
{
PyObject *return_value = NULL;
HKEY key;
- const Py_UNICODE *name;
+ const Py_UNICODE *name = NULL;
if (!_PyArg_CheckPositional("QueryValueEx", nargs, 2, 2)) {
goto exit;
{
PyObject *return_value = NULL;
HKEY key;
- const Py_UNICODE *file_name;
+ const Py_UNICODE *file_name = NULL;
if (!_PyArg_CheckPositional("SaveKey", nargs, 2, 2)) {
goto exit;
{
PyObject *return_value = NULL;
HKEY key;
- const Py_UNICODE *sub_key;
+ const Py_UNICODE *sub_key = NULL;
DWORD type;
PyObject *value_obj;
{
PyObject *return_value = NULL;
HKEY key;
- const Py_UNICODE *value_name;
+ const Py_UNICODE *value_name = NULL;
PyObject *reserved;
DWORD type;
PyObject *value;
exit:
return return_value;
}
-/*[clinic end generated code: output=7ad1db69bc42cab4 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=e83bdaabb4fa2167 input=a9049054013a1b77]*/
int
-findArgumentLength(const wchar_t *buffer, int bufferLength)
+findArgv0Length(const wchar_t *buffer, int bufferLength)
{
- if (bufferLength < 0) {
- bufferLength = (int)wcsnlen_s(buffer, MAXLEN);
- }
- if (bufferLength == 0) {
- return 0;
- }
- const wchar_t *end;
- int i;
-
- if (buffer[0] != L'"') {
- end = wcschr(buffer, L' ');
- if (!end) {
- return bufferLength;
- }
- i = (int)(end - buffer);
- return i < bufferLength ? i : bufferLength;
- }
-
- i = 0;
- while (i < bufferLength) {
- end = wcschr(&buffer[i + 1], L'"');
- if (!end) {
- return bufferLength;
- }
-
- i = (int)(end - buffer);
- if (i >= bufferLength) {
- return bufferLength;
- }
-
- int j = i;
- while (j > 1 && buffer[--j] == L'\\') {
- if (j > 0 && buffer[--j] == L'\\') {
- // Even number, so back up and keep counting
- } else {
- // Odd number, so it's escaped and we want to keep searching
- continue;
+ // Note: this implements semantics that are only valid for argv0.
+ // Specifically, there is no escaping of quotes, and quotes within
+ // the argument have no effect. A quoted argv0 must start and end
+ // with a double quote character; otherwise, it ends at the first
+ // ' ' or '\t'.
+ int quoted = buffer[0] == L'"';
+ for (int i = 1; bufferLength < 0 || i < bufferLength; ++i) {
+ switch (buffer[i]) {
+ case L'\0':
+ return i;
+ case L' ':
+ case L'\t':
+ if (!quoted) {
+ return i;
}
- }
-
- // Non-escaped quote with space after it - end of the argument!
- if (i + 1 >= bufferLength || isspace(buffer[i + 1])) {
- return i + 1;
+ break;
+ case L'"':
+ if (quoted) {
+ return i + 1;
+ }
+ break;
}
}
-
return bufferLength;
}
const wchar_t *
-findArgumentEnd(const wchar_t *buffer, int bufferLength)
+findArgv0End(const wchar_t *buffer, int bufferLength)
{
- return &buffer[findArgumentLength(buffer, bufferLength)];
+ return &buffer[findArgv0Length(buffer, bufferLength)];
}
return RC_NO_COMMANDLINE;
}
- const wchar_t *tail = findArgumentEnd(search->originalCmdLine, -1);
- const wchar_t *end = tail;
- search->restOfCmdLine = tail;
+ const wchar_t *argv0End = findArgv0End(search->originalCmdLine, -1);
+ const wchar_t *tail = argv0End; // will be start of the executable name
+ const wchar_t *end = argv0End; // will be end of the executable name
+ search->restOfCmdLine = argv0End; // will be first space after argv0
while (--tail != search->originalCmdLine) {
- if (*tail == L'.' && end == search->restOfCmdLine) {
+ if (*tail == L'"' && end == argv0End) {
+ // Move the "end" up to the quote, so we also allow moving for
+ // a period later on.
+ end = argv0End = tail;
+ } else if (*tail == L'.' && end == argv0End) {
end = tail;
} else if (*tail == L'\\' || *tail == L'/') {
++tail;
int
+_useShebangAsExecutable(SearchInfo *search, const wchar_t *shebang, int shebangLength)
+{
+ wchar_t buffer[MAXLEN];
+ wchar_t script[MAXLEN];
+ wchar_t command[MAXLEN];
+
+ int commandLength = 0;
+ int inQuote = 0;
+
+ if (!shebang || !shebangLength) {
+ return 0;
+ }
+
+ wchar_t *pC = command;
+ for (int i = 0; i < shebangLength; ++i) {
+ wchar_t c = shebang[i];
+ if (isspace(c) && !inQuote) {
+ commandLength = i;
+ break;
+ } else if (c == L'"') {
+ inQuote = !inQuote;
+ } else if (c == L'/' || c == L'\\') {
+ *pC++ = L'\\';
+ } else {
+ *pC++ = c;
+ }
+ }
+ *pC = L'\0';
+
+ if (!GetCurrentDirectoryW(MAXLEN, buffer) ||
+ wcsncpy_s(script, MAXLEN, search->scriptFile, search->scriptFileLength) ||
+ FAILED(PathCchCombineEx(buffer, MAXLEN, buffer, script,
+ PATHCCH_ALLOW_LONG_PATHS)) ||
+ FAILED(PathCchRemoveFileSpec(buffer, MAXLEN)) ||
+ FAILED(PathCchCombineEx(buffer, MAXLEN, buffer, command,
+ PATHCCH_ALLOW_LONG_PATHS))
+ ) {
+ return RC_NO_MEMORY;
+ }
+
+ int n = (int)wcsnlen(buffer, MAXLEN);
+ wchar_t *path = allocSearchInfoBuffer(search, n + 1);
+ if (!path) {
+ return RC_NO_MEMORY;
+ }
+ wcscpy_s(path, n + 1, buffer);
+ search->executablePath = path;
+ if (commandLength) {
+ search->executableArgs = &shebang[commandLength];
+ search->executableArgsLength = shebangLength - commandLength;
+ }
+ return 0;
+}
+
+
+int
checkShebang(SearchInfo *search)
{
// Do not check shebang if a tag was provided or if no script file
L"/usr/bin/env ",
L"/usr/bin/",
L"/usr/local/bin/",
- L"",
+ L"python",
NULL
};
for (const wchar_t **tmpl = shebangTemplates; *tmpl; ++tmpl) {
if (_shebangStartsWith(shebang, shebangLength, *tmpl, &command)) {
commandLength = 0;
+ // Normally "python" is the start of the command, but we also need it
+ // as a shebang prefix for back-compat. We move the command marker back
+ // if we match on that one.
+ if (0 == wcscmp(*tmpl, L"python")) {
+ command -= 6;
+ }
while (command[commandLength] && !isspace(command[commandLength])) {
commandLength += 1;
}
debug(L"# Found shebang command but could not execute it: %.*s\n",
commandLength, command);
}
- break;
+ // search is done by this point
+ return 0;
}
}
- return 0;
+ // Unrecognised commands are joined to the script's directory and treated
+ // as the executable path
+ return _useShebangAsExecutable(search, shebang, shebangLength);
}
struct AppxSearchInfo APPX_SEARCH[] = {
// Releases made through the Store
+ { L"PythonSoftwareFoundation.Python.3.12_qbz5n2kfra8p0", L"3.12", 10 },
{ L"PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0", L"3.11", 10 },
{ L"PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0", L"3.10", 10 },
{ L"PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0", L"3.9", 10 },
// Side-loadable releases. Note that the publisher ID changes whenever we
// renew our code-signing certificate, so the newer ID has a higher
// priority (lower sortKey)
+ { L"PythonSoftwareFoundation.Python.3.12_3847v3x7pw1km", L"3.12", 11 },
{ L"PythonSoftwareFoundation.Python.3.11_3847v3x7pw1km", L"3.11", 11 },
{ L"PythonSoftwareFoundation.Python.3.11_hd69rhyc2wevp", L"3.11", 12 },
{ L"PythonSoftwareFoundation.Python.3.10_3847v3x7pw1km", L"3.10", 11 },
struct StoreSearchInfo STORE_SEARCH[] = {
- { L"3", /* 3.10 */ L"9PJPW5LDXLZ5" },
+ { L"3", /* 3.11 */ L"9NRWMJP3717K" },
+ { L"3.12", L"9NCVDN91XZQP" },
{ L"3.11", L"9NRWMJP3717K" },
{ L"3.10", L"9PJPW5LDXLZ5" },
{ L"3.9", L"9P7QFQMJRFP7" },
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <PropertyGroup Condition="$(Platform) == '$$PYTHON_PLATFORM$$'">\r
- <PythonHome>$(MSBuildThisFileDirectory)\..\..\tools</PythonHome>\r
- <PythonInclude>$(PythonHome)\include</PythonInclude>\r
- <PythonLibs>$(PythonHome)\libs</PythonLibs>\r
- <PythonTag>$$PYTHON_TAG$$</PythonTag>\r
- <PythonVersion>$$PYTHON_VERSION$$</PythonVersion>\r
- \r
- <IncludePythonExe Condition="$(IncludePythonExe) == ''">true</IncludePythonExe>\r
- <IncludeDistutils Condition="$(IncludeDistutils) == ''">false</IncludeDistutils>\r
- <IncludeLib2To3 Condition="$(IncludeLib2To3) == ''">false</IncludeLib2To3>\r
- <IncludeVEnv Condition="$(IncludeVEnv) == ''">false</IncludeVEnv>\r
-\r
- <GetPythonRuntimeFilesDependsOn>$$PYTHON_TARGET$$;$(GetPythonRuntimeFilesDependsOn)</GetPythonRuntimeFilesDependsOn>\r
- </PropertyGroup>\r
-\r
- <ItemDefinitionGroup Condition="$(Platform) == '$$PYTHON_PLATFORM$$'">\r
- <ClCompile>\r
- <AdditionalIncludeDirectories>$(PythonInclude);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>\r
- <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>\r
- </ClCompile>\r
- <Link>\r
- <AdditionalLibraryDirectories>$(PythonLibs);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>\r
- </Link>\r
- </ItemDefinitionGroup>\r
-\r
- <Target Name="GetPythonRuntimeFiles" Returns="@(PythonRuntime)" DependsOnTargets="$(GetPythonRuntimeFilesDependsOn)" />\r
-\r
- <Target Name="$$PYTHON_TARGET$$" Returns="@(PythonRuntime)">\r
- <ItemGroup>\r
- <_PythonRuntimeExe Include="$(PythonHome)\python*.dll" />\r
- <_PythonRuntimeExe Include="$(PythonHome)\vcruntime140.dll" />\r
- <_PythonRuntimeExe Include="$(PythonHome)\python*.exe" Condition="$(IncludePythonExe) == 'true'" />\r
- <_PythonRuntimeExe>\r
- <Link>%(Filename)%(Extension)</Link>\r
- </_PythonRuntimeExe>\r
- <_PythonRuntimeDlls Include="$(PythonHome)\DLLs\*.pyd" />\r
- <_PythonRuntimeDlls Include="$(PythonHome)\DLLs\*.dll" />\r
- <_PythonRuntimeDlls>\r
- <Link>DLLs\%(Filename)%(Extension)</Link>\r
- </_PythonRuntimeDlls>\r
- <_PythonRuntimeLib Include="$(PythonHome)\Lib\**\*" Exclude="$(PythonHome)\Lib\**\*.pyc;$(PythonHome)\Lib\site-packages\**\*" />\r
- <_PythonRuntimeLib Remove="$(PythonHome)\Lib\distutils\**\*" Condition="$(IncludeDistutils) != 'true'" />\r
- <_PythonRuntimeLib Remove="$(PythonHome)\Lib\lib2to3\**\*" Condition="$(IncludeLib2To3) != 'true'" />\r
- <_PythonRuntimeLib Remove="$(PythonHome)\Lib\ensurepip\**\*" Condition="$(IncludeVEnv) != 'true'" />\r
- <_PythonRuntimeLib Remove="$(PythonHome)\Lib\venv\**\*" Condition="$(IncludeVEnv) != 'true'" />\r
- <_PythonRuntimeLib>\r
- <Link>Lib\%(RecursiveDir)%(Filename)%(Extension)</Link>\r
- </_PythonRuntimeLib>\r
- <PythonRuntime Include="@(_PythonRuntimeExe);@(_PythonRuntimeDlls);@(_PythonRuntimeLib)" />\r
- </ItemGroup>\r
- \r
- <Message Importance="low" Text="Collected Python runtime from $(PythonHome):%0D%0A@(PythonRuntime->' %(Link)','%0D%0A')" />\r
- </Target>\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <PropertyGroup Condition="$(Platform) == '$$PYTHON_PLATFORM$$'">
+ <PythonHome>$(MSBuildThisFileDirectory)\..\..\tools</PythonHome>
+ <PythonInclude>$(PythonHome)\include</PythonInclude>
+ <PythonLibs>$(PythonHome)\libs</PythonLibs>
+ <PythonTag>$$PYTHON_TAG$$</PythonTag>
+ <PythonVersion>$$PYTHON_VERSION$$</PythonVersion>
+
+ <IncludePythonExe Condition="$(IncludePythonExe) == ''">true</IncludePythonExe>
+ <IncludeDistutils Condition="$(IncludeDistutils) == ''">false</IncludeDistutils>
+ <IncludeLib2To3 Condition="$(IncludeLib2To3) == ''">false</IncludeLib2To3>
+ <IncludeVEnv Condition="$(IncludeVEnv) == ''">false</IncludeVEnv>
+
+ <GetPythonRuntimeFilesDependsOn>$$PYTHON_TARGET$$;$(GetPythonRuntimeFilesDependsOn)</GetPythonRuntimeFilesDependsOn>
+ </PropertyGroup>
+
+ <ItemDefinitionGroup Condition="$(Platform) == '$$PYTHON_PLATFORM$$'">
+ <ClCompile>
+ <AdditionalIncludeDirectories>$(PythonInclude);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+ </ClCompile>
+ <Link>
+ <AdditionalLibraryDirectories>$(PythonLibs);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+ </Link>
+ </ItemDefinitionGroup>
+
+ <Target Name="GetPythonRuntimeFiles" Returns="@(PythonRuntime)" DependsOnTargets="$(GetPythonRuntimeFilesDependsOn)" />
+
+ <Target Name="$$PYTHON_TARGET$$" Returns="@(PythonRuntime)">
+ <ItemGroup>
+ <_PythonRuntimeExe Include="$(PythonHome)\python*.dll" />
+ <_PythonRuntimeExe Include="$(PythonHome)\vcruntime140.dll" />
+ <_PythonRuntimeExe Include="$(PythonHome)\python*.exe" Condition="$(IncludePythonExe) == 'true'" />
+ <_PythonRuntimeExe>
+ <Link>%(Filename)%(Extension)</Link>
+ </_PythonRuntimeExe>
+ <_PythonRuntimeDlls Include="$(PythonHome)\DLLs\*.pyd" />
+ <_PythonRuntimeDlls Include="$(PythonHome)\DLLs\*.dll" />
+ <_PythonRuntimeDlls>
+ <Link>DLLs\%(Filename)%(Extension)</Link>
+ </_PythonRuntimeDlls>
+ <_PythonRuntimeLib Include="$(PythonHome)\Lib\**\*" Exclude="$(PythonHome)\Lib\**\*.pyc;$(PythonHome)\Lib\site-packages\**\*" />
+ <_PythonRuntimeLib Remove="$(PythonHome)\Lib\distutils\**\*" Condition="$(IncludeDistutils) != 'true'" />
+ <_PythonRuntimeLib Remove="$(PythonHome)\Lib\lib2to3\**\*" Condition="$(IncludeLib2To3) != 'true'" />
+ <_PythonRuntimeLib Remove="$(PythonHome)\Lib\ensurepip\**\*" Condition="$(IncludeVEnv) != 'true'" />
+ <_PythonRuntimeLib Remove="$(PythonHome)\Lib\venv\**\*" Condition="$(IncludeVEnv) != 'true'" />
+ <_PythonRuntimeLib>
+ <Link>Lib\%(RecursiveDir)%(Filename)%(Extension)</Link>
+ </_PythonRuntimeLib>
+ <PythonRuntime Include="@(_PythonRuntimeExe);@(_PythonRuntimeDlls);@(_PythonRuntimeLib)" />
+ </ItemGroup>
+
+ <Message Importance="low" Text="Collected Python runtime from $(PythonHome):%0D%0A@(PythonRuntime->' %(Link)','%0D%0A')" />
+ </Target>
+</Project>
#include <string>
+#include <appmodel.h>
#include <winrt\Windows.ApplicationModel.h>
#include <winrt\Windows.Storage.h>
#endif
static std::wstring
-get_user_base()
+get_package_family()
{
try {
- const auto appData = winrt::Windows::Storage::ApplicationData::Current();
- if (appData) {
- const auto localCache = appData.LocalCacheFolder();
- if (localCache) {
- auto path = localCache.Path();
- if (!path.empty()) {
- return std::wstring(path) + L"\\local-packages";
- }
- }
+ UINT32 nameLength = MAX_PATH;
+ std::wstring name;
+ name.resize(nameLength);
+ DWORD rc = GetCurrentPackageFamilyName(&nameLength, name.data());
+ if (rc == ERROR_SUCCESS) {
+ name.resize(nameLength - 1);
+ return name;
}
- } catch (...) {
+ else if (rc != ERROR_INSUFFICIENT_BUFFER) {
+ throw rc;
+ }
+ name.resize(nameLength);
+ rc = GetCurrentPackageFamilyName(&nameLength, name.data());
+ if (rc != ERROR_SUCCESS) {
+ throw rc;
+ }
+ name.resize(nameLength - 1);
+ return name;
}
+ catch (...) {
+ }
+
return std::wstring();
}
static std::wstring
-get_package_family()
+get_user_base()
{
try {
- const auto package = winrt::Windows::ApplicationModel::Package::Current();
- if (package) {
- const auto id = package.Id();
- if (id) {
- return std::wstring(id.FamilyName());
+ const auto appData = winrt::Windows::Storage::ApplicationData::Current();
+ if (appData) {
+ const auto localCache = appData.LocalCacheFolder();
+ if (localCache) {
+ std::wstring path { localCache.Path().c_str() };
+ if (!path.empty()) {
+ return path + L"\\local-packages";
+ }
}
}
- }
- catch (...) {
+ } catch (...) {
}
return std::wstring();
get_package_home()
{
try {
- const auto package = winrt::Windows::ApplicationModel::Package::Current();
- if (package) {
- const auto path = package.InstalledLocation();
- if (path) {
- return std::wstring(path.Path());
- }
+ UINT32 pathLength = MAX_PATH;
+ std::wstring path;
+ path.resize(pathLength);
+ DWORD rc = GetCurrentPackagePath(&pathLength, path.data());
+ if (rc == ERROR_SUCCESS) {
+ path.resize(pathLength - 1);
+ return path;
+ }
+ else if (rc != ERROR_INSUFFICIENT_BUFFER) {
+ throw rc;
+ }
+ path.resize(pathLength);
+ rc = GetCurrentPackagePath(&pathLength, path.data());
+ if (rc != ERROR_SUCCESS) {
+ throw rc;
}
+ path.resize(pathLength - 1);
+ return path;
}
catch (...) {
}
-Welcome to the "PC" subdirectory of the Python distribution\r
-***********************************************************\r
-\r
-This "PC" subdirectory contains complete project files to make\r
-several older PC ports of Python, as well as all the PC-specific\r
-Python source files. It should be located in the root of the\r
-Python distribution, and there should be directories "Modules",\r
-"Objects", "Python", etc. in the parent directory of this "PC"\r
-subdirectory. Be sure to read the documentation in the Python\r
-distribution.\r
-\r
-Python requires library files such as string.py to be available in\r
-one or more library directories. The search path of libraries is\r
-set up when Python starts. To see the current Python library search\r
-path, start Python and enter "import sys" and "print sys.path".\r
-\r
-All PC ports use this scheme to try to set up a module search path:\r
-\r
- 1) The script location; the current directory without script.\r
- 2) The PYTHONPATH variable, if set.\r
- 3) Paths specified in the Registry.\r
- 4) Default directories lib, lib/win, lib/test, lib/tkinter;\r
- these are searched relative to the environment variable\r
- PYTHONHOME, if set, or relative to the executable and its\r
- ancestors, if a landmark file (Lib/string.py) is found ,\r
- or the current directory (not useful).\r
- 5) The directory containing the executable.\r
-\r
-The best installation strategy is to put the Python executable and\r
-DLL in some convenient directory such as\r
-C:/python, and copy all library files and subdirectories (using XCOPY)\r
-to C:/python/lib. Then you don't need to set PYTHONPATH. Otherwise,\r
-set the environment variable PYTHONPATH to your Python search path.\r
-For example,\r
- set PYTHONPATH=.;d:\python\lib;d:\python\lib\win;d:\python\lib\dos-8x3\r
-\r
-There are several add-in modules to build Python programs which use\r
-the native Windows operating environment. The ports here just make\r
-"QuickWin" and DOS Python versions which support a character-mode\r
-(console) environment. Look in www.python.org for Tkinter, PythonWin,\r
-WPY and wxPython.\r
-\r
-To make a Python port, start the Integrated Development Environment\r
-(IDE) of your compiler, and read in the native "project file"\r
-(or makefile) provided. This will enable you to change any source\r
-files or build settings so you can make custom builds.\r
-\r
-pyconfig.h An important configuration file specific to PC's.\r
-\r
-config.c The list of C modules to include in the Python PC\r
- version. Manually edit this file to add or\r
- remove Python modules.\r
-\r
-testpy.py A Python test program. Run this to test your\r
- Python port. It should produce copious output,\r
- ending in a report on how many tests were OK, how many\r
- failed, and how many were skipped. Don't worry about\r
- skipped tests (these test unavailable optional features).\r
-\r
-\r
-Additional files and subdirectories for 32-bit Windows\r
-======================================================\r
-\r
-python_nt.rc Resource compiler input for python15.dll.\r
-\r
-dl_nt.c\r
- Additional sources used for 32-bit Windows features.\r
-\r
-getpathp.c Default sys.path calculations (for all PC platforms).\r
-\r
-dllbase_nt.txt A (manually maintained) list of base addresses for\r
- various DLLs, to avoid run-time relocation.\r
-\r
-\r
-Note for Windows 3.x and DOS users\r
-==================================\r
-\r
-Neither Windows 3.x nor DOS is supported any more. The last Python\r
-version that supported these was Python 1.5.2; the support files were\r
-present in Python 2.0 but weren't updated, and it is not our intention\r
-to support these platforms for Python 2.x.\r
+Welcome to the "PC" subdirectory of the Python distribution
+***********************************************************
+
+This "PC" subdirectory contains complete project files to make
+several older PC ports of Python, as well as all the PC-specific
+Python source files. It should be located in the root of the
+Python distribution, and there should be directories "Modules",
+"Objects", "Python", etc. in the parent directory of this "PC"
+subdirectory. Be sure to read the documentation in the Python
+distribution.
+
+Python requires library files such as string.py to be available in
+one or more library directories. The search path of libraries is
+set up when Python starts. To see the current Python library search
+path, start Python and enter "import sys" and "print sys.path".
+
+All PC ports use this scheme to try to set up a module search path:
+
+ 1) The script location; the current directory without script.
+ 2) The PYTHONPATH variable, if set.
+ 3) Paths specified in the Registry.
+ 4) Default directories lib, lib/win, lib/test, lib/tkinter;
+ these are searched relative to the environment variable
+ PYTHONHOME, if set, or relative to the executable and its
+ ancestors, if a landmark file (Lib/string.py) is found ,
+ or the current directory (not useful).
+ 5) The directory containing the executable.
+
+The best installation strategy is to put the Python executable and
+DLL in some convenient directory such as
+C:/python, and copy all library files and subdirectories (using XCOPY)
+to C:/python/lib. Then you don't need to set PYTHONPATH. Otherwise,
+set the environment variable PYTHONPATH to your Python search path.
+For example,
+ set PYTHONPATH=.;d:\python\lib;d:\python\lib\win;d:\python\lib\dos-8x3
+
+There are several add-in modules to build Python programs which use
+the native Windows operating environment. The ports here just make
+"QuickWin" and DOS Python versions which support a character-mode
+(console) environment. Look in www.python.org for Tkinter, PythonWin,
+WPY and wxPython.
+
+To make a Python port, start the Integrated Development Environment
+(IDE) of your compiler, and read in the native "project file"
+(or makefile) provided. This will enable you to change any source
+files or build settings so you can make custom builds.
+
+pyconfig.h An important configuration file specific to PC's.
+
+config.c The list of C modules to include in the Python PC
+ version. Manually edit this file to add or
+ remove Python modules.
+
+testpy.py A Python test program. Run this to test your
+ Python port. It should produce copious output,
+ ending in a report on how many tests were OK, how many
+ failed, and how many were skipped. Don't worry about
+ skipped tests (these test unavailable optional features).
+
+
+Additional files and subdirectories for 32-bit Windows
+======================================================
+
+python_nt.rc Resource compiler input for python15.dll.
+
+dl_nt.c
+ Additional sources used for 32-bit Windows features.
+
+getpathp.c Default sys.path calculations (for all PC platforms).
+
+dllbase_nt.txt A (manually maintained) list of base addresses for
+ various DLLs, to avoid run-time relocation.
+
+
+Note for Windows 3.x and DOS users
+==================================
+
+Neither Windows 3.x nor DOS is supported any more. The last Python
+version that supported these was Python 1.5.2; the support files were
+present in Python 2.0 but weren't updated, and it is not our intention
+to support these platforms for Python 2.x.
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+ <ProjectReference Include="pythoncore.vcxproj">
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\ No newline at end of file
-@echo off\r
-rem\r
-rem Runs the blurb tool. If necessary, will install Python and/or blurb.\r
-rem\r
-rem Pass "--update"/"-U" as the first argument to update blurb.\r
-rem\r
-\r
-call "%~dp0find_python.bat" %PYTHON%\r
-if ERRORLEVEL 1 (echo Cannot locate python.exe on PATH or as PYTHON variable & exit /b 3)\r
-\r
-if "%1" EQU "--update" (%PYTHON% -m pip install -U blurb && shift)\r
-if "%1" EQU "-U" (%PYTHON% -m pip install -U blurb && shift)\r
-\r
-%PYTHON% -m blurb %1 %2 %3 %4 %5 %6 %7 %8 %9\r
-if ERRORLEVEL 1 goto :install_and_retry\r
-exit /B 0\r
-\r
-:install_and_retry\r
-rem Before reporting the error, make sure that blurb is actually installed.\r
-rem If not, install it first and try again.\r
-set _ERR=%ERRORLEVEL%\r
-%PYTHON% -c "import blurb"\r
-if NOT ERRORLEVEL 1 exit /B %_ERR%\r
-echo Installing blurb...\r
-%PYTHON% -m pip install blurb\r
-if ERRORLEVEL 1 exit /B %ERRORLEVEL%\r
-%PYTHON% -m blurb %*\r
-exit /B\r
+@echo off
+rem
+rem Runs the blurb tool. If necessary, will install Python and/or blurb.
+rem
+rem Pass "--update"/"-U" as the first argument to update blurb.
+rem
+
+call "%~dp0find_python.bat" %PYTHON%
+if ERRORLEVEL 1 (echo Cannot locate python.exe on PATH or as PYTHON variable & exit /b 3)
+
+if "%1" EQU "--update" (%PYTHON% -m pip install -U blurb && shift)
+if "%1" EQU "-U" (%PYTHON% -m pip install -U blurb && shift)
+
+%PYTHON% -m blurb %1 %2 %3 %4 %5 %6 %7 %8 %9
+if ERRORLEVEL 1 goto :install_and_retry
+exit /B 0
+
+:install_and_retry
+rem Before reporting the error, make sure that blurb is actually installed.
+rem If not, install it first and try again.
+set _ERR=%ERRORLEVEL%
+%PYTHON% -c "import blurb"
+if NOT ERRORLEVEL 1 exit /B %_ERR%
+echo Installing blurb...
+%PYTHON% -m pip install blurb
+if ERRORLEVEL 1 exit /B %ERRORLEVEL%
+%PYTHON% -m blurb %*
+exit /B
-@echo off\r
-goto Run\r
-:Usage\r
-echo.%~nx0 [flags and arguments] [quoted MSBuild options]\r
-echo.\r
-echo.Build CPython from the command line. Requires the appropriate\r
-echo.version(s) of Microsoft Visual Studio to be installed (see readme.txt).\r
-echo.\r
-echo.After the flags recognized by this script, up to 9 arguments to be passed\r
-echo.directly to MSBuild may be passed. If the argument contains an '=', the\r
-echo.entire argument must be quoted (e.g. `%~nx0 "/p:PlatformToolset=v100"`).\r
-echo.Alternatively you can put extra flags for MSBuild in a file named \r
-echo.`msbuild.rsp` in the `PCbuild` directory, one flag per line. This file\r
-echo.will be picked automatically by MSBuild. Flags put in this file does not\r
-echo.need to be quoted. You can still use environment variables inside the \r
-echo.response file.\r
-echo.\r
-echo.Available flags:\r
-echo. -h Display this help message\r
-echo. -V Display version information for the current build\r
-echo. -r Target Rebuild instead of Build\r
-echo. -d Set the configuration to Debug\r
-echo. -E Don't fetch or build external libraries. Extension modules that\r
-echo. depend on external libraries will not attempt to build if this flag\r
-echo. is present; -e is also accepted to explicitly enable fetching and\r
-echo. building externals.\r
-echo. -m Enable parallel build (enabled by default)\r
-echo. -M Disable parallel build\r
-echo. -v Increased output messages\r
-echo. -vv Verbose output messages\r
-echo. -q Quiet output messages (errors and warnings only)\r
-echo. -k Attempt to kill any running Pythons before building (usually done\r
-echo. automatically by the pythoncore project)\r
-echo. --pgo Build with Profile-Guided Optimization. This flag\r
-echo. overrides -c and -d\r
-echo. --test-marker Enable the test marker within the build.\r
-echo. --regen Regenerate all opcodes, grammar and tokens.\r
-echo.\r
-echo.Available flags to avoid building certain modules.\r
-echo.These flags have no effect if '-e' is not given:\r
-echo. --no-ctypes Do not attempt to build _ctypes\r
-echo. --no-ssl Do not attempt to build _ssl\r
-echo. --no-tkinter Do not attempt to build Tkinter\r
-echo.\r
-echo.Available arguments:\r
-echo. -c Release ^| Debug ^| PGInstrument ^| PGUpdate\r
-echo. Set the configuration (default: Release)\r
-echo. -p x64 ^| Win32 ^| ARM ^| ARM64\r
-echo. Set the platform (default: x64)\r
-echo. -t Build ^| Rebuild ^| Clean ^| CleanAll\r
-echo. Set the target manually\r
-echo. --pgo-job The job to use for PGO training; implies --pgo\r
-echo. (default: "-m test --pgo")\r
-exit /b 127\r
-\r
-:Run\r
-setlocal\r
-set platf=x64\r
-set conf=Release\r
-set target=Build\r
-set dir=%~dp0\r
-set parallel=/m\r
-set verbose=/nologo /v:m /clp:summary\r
-set kill=\r
-set do_pgo=\r
-set pgo_job=-m test --pgo\r
-\r
-:CheckOpts\r
-if "%~1"=="-h" goto Usage\r
-if "%~1"=="-c" (set conf=%2) & shift & shift & goto CheckOpts\r
-if "%~1"=="-p" (set platf=%2) & shift & shift & goto CheckOpts\r
-if "%~1"=="-r" (set target=Rebuild) & shift & goto CheckOpts\r
-if "%~1"=="-t" (set target=%2) & shift & shift & goto CheckOpts\r
-if "%~1"=="-d" (set conf=Debug) & shift & goto CheckOpts\r
-if "%~1"=="-m" (set parallel=/m) & shift & goto CheckOpts\r
-if "%~1"=="-M" (set parallel=) & shift & goto CheckOpts\r
-if "%~1"=="-v" (set verbose=/v:n) & shift & goto CheckOpts\r
-if "%~1"=="-vv" (set verbose=/v:d /ds) & shift & goto CheckOpts\r
-if "%~1"=="-q" (set verbose=/v:q /nologo /clp:summary) & shift & goto CheckOpts\r
-if "%~1"=="-k" (set kill=true) & shift & goto CheckOpts\r
-if "%~1"=="--pgo" (set do_pgo=true) & shift & goto CheckOpts\r
-if "%~1"=="--pgo-job" (set do_pgo=true) & (set pgo_job=%~2) & shift & shift & goto CheckOpts\r
-if "%~1"=="--test-marker" (set UseTestMarker=true) & shift & goto CheckOpts\r
-if "%~1"=="-V" shift & goto Version\r
-if "%~1"=="--regen" (set Regen=true) & shift & goto CheckOpts\r
-rem These use the actual property names used by MSBuild. We could just let\r
-rem them in through the environment, but we specify them on the command line\r
-rem anyway for visibility so set defaults after this\r
-if "%~1"=="-e" (set IncludeExternals=true) & shift & goto CheckOpts\r
-if "%~1"=="-E" (set IncludeExternals=false) & shift & goto CheckOpts\r
-if "%~1"=="--no-ctypes" (set IncludeCTypes=false) & shift & goto CheckOpts\r
-if "%~1"=="--no-ssl" (set IncludeSSL=false) & shift & goto CheckOpts\r
-if "%~1"=="--no-tkinter" (set IncludeTkinter=false) & shift & goto CheckOpts\r
-\r
-if "%IncludeExternals%"=="" set IncludeExternals=true\r
-if "%IncludeCTypes%"=="" set IncludeCTypes=true\r
-if "%IncludeSSL%"=="" set IncludeSSL=true\r
-if "%IncludeTkinter%"=="" set IncludeTkinter=true\r
-\r
-if "%IncludeExternals%"=="true" call "%dir%get_externals.bat"\r
-\r
-if "%do_pgo%" EQU "true" if "%platf%" EQU "x64" (\r
- if "%PROCESSOR_ARCHITEW6432%" NEQ "AMD64" if "%PROCESSOR_ARCHITECTURE%" NEQ "AMD64" (\r
- echo.ERROR: Cannot cross-compile with PGO \r
- echo. 32bit operating system detected. Ensure your PROCESSOR_ARCHITECTURE\r
- echo. and PROCESSOR_ARCHITEW6432 environment variables are correct.\r
- exit /b 1 \r
- )\r
-)\r
-\r
-if not exist "%GIT%" where git > "%TEMP%\git.loc" 2> nul && set /P GIT= < "%TEMP%\git.loc" & del "%TEMP%\git.loc"\r
-if exist "%GIT%" set GITProperty=/p:GIT="%GIT%"\r
-if not exist "%GIT%" echo Cannot find Git on PATH & set GITProperty=\r
-\r
-rem Setup the environment\r
-call "%dir%find_msbuild.bat" %MSBUILD%\r
-if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)\r
-\r
-call "%dir%find_python.bat" %PYTHON%\r
-if ERRORLEVEL 1 (echo Cannot locate python.exe on PATH or as PYTHON variable & exit /b 3)\r
-set PythonForBuild=%PYTHON%\r
-\r
-if "%kill%"=="true" call :Kill\r
-if ERRORLEVEL 1 exit /B %ERRORLEVEL%\r
-\r
-if "%regen%"=="true" goto :Regen\r
-\r
-if "%do_pgo%"=="true" (\r
- set conf=PGInstrument\r
- call :Build %1 %2 %3 %4 %5 %6 %7 %8 %9\r
-)\r
-rem %VARS% are evaluated eagerly, which would lose the ERRORLEVEL\r
-rem value if we didn't split it out here.\r
-if "%do_pgo%"=="true" if ERRORLEVEL 1 exit /B %ERRORLEVEL%\r
-if "%do_pgo%"=="true" (\r
- del /s "%dir%\*.pgc"\r
- del /s "%dir%\..\Lib\*.pyc"\r
- echo on\r
- call "%dir%\..\python.bat" %pgo_job%\r
- @echo off\r
- call :Kill\r
- set conf=PGUpdate\r
- set target=Build\r
-)\r
-goto :Build\r
-\r
-:Kill\r
-echo on\r
-%MSBUILD% "%dir%\pythoncore.vcxproj" /t:KillPython %verbose%^\r
- /p:Configuration=%conf% /p:Platform=%platf%^\r
- /p:KillPython=true\r
-\r
-@echo off\r
-exit /B %ERRORLEVEL%\r
-\r
-:Regen\r
-echo on\r
-%MSBUILD% "%dir%\pythoncore.vcxproj" /t:Regen %verbose%^\r
- /p:Configuration=%conf% /p:Platform=%platf%^\r
- /p:ForceRegen=true\r
-\r
-@echo off\r
-exit /B %ERRORLEVEL%\r
-\r
-:Build\r
-rem Call on MSBuild to do the work, echo the command.\r
-rem Passing %1-9 is not the preferred option, but argument parsing in\r
-rem batch is, shall we say, "lackluster"\r
-echo on\r
-%MSBUILD% "%dir%pcbuild.proj" /t:%target% %parallel% %verbose%^\r
- /p:Configuration=%conf% /p:Platform=%platf%^\r
- /p:IncludeExternals=%IncludeExternals%^\r
- /p:IncludeCTypes=%IncludeCTypes%^\r
- /p:IncludeSSL=%IncludeSSL% /p:IncludeTkinter=%IncludeTkinter%^\r
- /p:UseTestMarker=%UseTestMarker% %GITProperty%^\r
- %1 %2 %3 %4 %5 %6 %7 %8 %9\r
-\r
-@echo off\r
-exit /b %ERRORLEVEL%\r
-\r
-:Version\r
-rem Display the current build version information\r
-call "%dir%find_msbuild.bat" %MSBUILD%\r
-if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)\r
-%MSBUILD% "%dir%pythoncore.vcxproj" /t:ShowVersionInfo /v:m /nologo %1 %2 %3 %4 %5 %6 %7 %8 %9\r
+@echo off
+goto Run
+:Usage
+echo.%~nx0 [flags and arguments] [quoted MSBuild options]
+echo.
+echo.Build CPython from the command line. Requires the appropriate
+echo.version(s) of Microsoft Visual Studio to be installed (see readme.txt).
+echo.
+echo.After the flags recognized by this script, up to 9 arguments to be passed
+echo.directly to MSBuild may be passed. If the argument contains an '=', the
+echo.entire argument must be quoted (e.g. `%~nx0 "/p:PlatformToolset=v100"`).
+echo.Alternatively you can put extra flags for MSBuild in a file named
+echo.`msbuild.rsp` in the `PCbuild` directory, one flag per line. This file
+echo.will be picked automatically by MSBuild. Flags put in this file does not
+echo.need to be quoted. You can still use environment variables inside the
+echo.response file.
+echo.
+echo.Available flags:
+echo. -h Display this help message
+echo. -V Display version information for the current build
+echo. -r Target Rebuild instead of Build
+echo. -d Set the configuration to Debug
+echo. -E Don't fetch or build external libraries. Extension modules that
+echo. depend on external libraries will not attempt to build if this flag
+echo. is present; -e is also accepted to explicitly enable fetching and
+echo. building externals.
+echo. -m Enable parallel build (enabled by default)
+echo. -M Disable parallel build
+echo. -v Increased output messages
+echo. -vv Verbose output messages
+echo. -q Quiet output messages (errors and warnings only)
+echo. -k Attempt to kill any running Pythons before building (usually done
+echo. automatically by the pythoncore project)
+echo. --pgo Build with Profile-Guided Optimization. This flag
+echo. overrides -c and -d
+echo. --test-marker Enable the test marker within the build.
+echo. --regen Regenerate all opcodes, grammar and tokens.
+echo.
+echo.Available flags to avoid building certain modules.
+echo.These flags have no effect if '-e' is not given:
+echo. --no-ctypes Do not attempt to build _ctypes
+echo. --no-ssl Do not attempt to build _ssl
+echo. --no-tkinter Do not attempt to build Tkinter
+echo.
+echo.Available arguments:
+echo. -c Release ^| Debug ^| PGInstrument ^| PGUpdate
+echo. Set the configuration (default: Release)
+echo. -p x64 ^| Win32 ^| ARM ^| ARM64
+echo. Set the platform (default: x64)
+echo. -t Build ^| Rebuild ^| Clean ^| CleanAll
+echo. Set the target manually
+echo. --pgo-job The job to use for PGO training; implies --pgo
+echo. (default: "-m test --pgo")
+exit /b 127
+
+:Run
+setlocal
+set platf=x64
+set conf=Release
+set target=Build
+set dir=%~dp0
+set parallel=/m
+set verbose=/nologo /v:m /clp:summary
+set kill=
+set do_pgo=
+set pgo_job=-m test --pgo
+
+:CheckOpts
+if "%~1"=="-h" goto Usage
+if "%~1"=="-c" (set conf=%2) & shift & shift & goto CheckOpts
+if "%~1"=="-p" (set platf=%2) & shift & shift & goto CheckOpts
+if "%~1"=="-r" (set target=Rebuild) & shift & goto CheckOpts
+if "%~1"=="-t" (set target=%2) & shift & shift & goto CheckOpts
+if "%~1"=="-d" (set conf=Debug) & shift & goto CheckOpts
+if "%~1"=="-m" (set parallel=/m) & shift & goto CheckOpts
+if "%~1"=="-M" (set parallel=) & shift & goto CheckOpts
+if "%~1"=="-v" (set verbose=/v:n) & shift & goto CheckOpts
+if "%~1"=="-vv" (set verbose=/v:d /ds) & shift & goto CheckOpts
+if "%~1"=="-q" (set verbose=/v:q /nologo /clp:summary) & shift & goto CheckOpts
+if "%~1"=="-k" (set kill=true) & shift & goto CheckOpts
+if "%~1"=="--pgo" (set do_pgo=true) & shift & goto CheckOpts
+if "%~1"=="--pgo-job" (set do_pgo=true) & (set pgo_job=%~2) & shift & shift & goto CheckOpts
+if "%~1"=="--test-marker" (set UseTestMarker=true) & shift & goto CheckOpts
+if "%~1"=="-V" shift & goto Version
+if "%~1"=="--regen" (set Regen=true) & shift & goto CheckOpts
+rem These use the actual property names used by MSBuild. We could just let
+rem them in through the environment, but we specify them on the command line
+rem anyway for visibility so set defaults after this
+if "%~1"=="-e" (set IncludeExternals=true) & shift & goto CheckOpts
+if "%~1"=="-E" (set IncludeExternals=false) & shift & goto CheckOpts
+if "%~1"=="--no-ctypes" (set IncludeCTypes=false) & shift & goto CheckOpts
+if "%~1"=="--no-ssl" (set IncludeSSL=false) & shift & goto CheckOpts
+if "%~1"=="--no-tkinter" (set IncludeTkinter=false) & shift & goto CheckOpts
+
+if "%IncludeExternals%"=="" set IncludeExternals=true
+if "%IncludeCTypes%"=="" set IncludeCTypes=true
+if "%IncludeSSL%"=="" set IncludeSSL=true
+if "%IncludeTkinter%"=="" set IncludeTkinter=true
+
+if "%IncludeExternals%"=="true" call "%dir%get_externals.bat"
+
+if "%do_pgo%" EQU "true" if "%platf%" EQU "x64" (
+ if "%PROCESSOR_ARCHITEW6432%" NEQ "AMD64" if "%PROCESSOR_ARCHITECTURE%" NEQ "AMD64" (
+ echo.ERROR: Cannot cross-compile with PGO
+ echo. 32bit operating system detected. Ensure your PROCESSOR_ARCHITECTURE
+ echo. and PROCESSOR_ARCHITEW6432 environment variables are correct.
+ exit /b 1
+ )
+)
+
+if not exist "%GIT%" where git > "%TEMP%\git.loc" 2> nul && set /P GIT= < "%TEMP%\git.loc" & del "%TEMP%\git.loc"
+if exist "%GIT%" set GITProperty=/p:GIT="%GIT%"
+if not exist "%GIT%" echo Cannot find Git on PATH & set GITProperty=
+
+rem Setup the environment
+call "%dir%find_msbuild.bat" %MSBUILD%
+if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)
+
+call "%dir%find_python.bat" %PYTHON%
+if ERRORLEVEL 1 (echo Cannot locate python.exe on PATH or as PYTHON variable & exit /b 3)
+set PythonForBuild=%PYTHON%
+
+if "%kill%"=="true" call :Kill
+if ERRORLEVEL 1 exit /B %ERRORLEVEL%
+
+if "%regen%"=="true" goto :Regen
+
+if "%do_pgo%"=="true" (
+ set conf=PGInstrument
+ call :Build %1 %2 %3 %4 %5 %6 %7 %8 %9
+)
+rem %VARS% are evaluated eagerly, which would lose the ERRORLEVEL
+rem value if we didn't split it out here.
+if "%do_pgo%"=="true" if ERRORLEVEL 1 exit /B %ERRORLEVEL%
+if "%do_pgo%"=="true" (
+ del /s "%dir%\*.pgc"
+ del /s "%dir%\..\Lib\*.pyc"
+ echo on
+ call "%dir%\..\python.bat" %pgo_job%
+ @echo off
+ call :Kill
+ set conf=PGUpdate
+ set target=Build
+)
+goto :Build
+
+:Kill
+echo on
+%MSBUILD% "%dir%\pythoncore.vcxproj" /t:KillPython %verbose%^
+ /p:Configuration=%conf% /p:Platform=%platf%^
+ /p:KillPython=true
+
+@echo off
+exit /B %ERRORLEVEL%
+
+:Regen
+echo on
+%MSBUILD% "%dir%\pythoncore.vcxproj" /t:Regen %verbose%^
+ /p:Configuration=%conf% /p:Platform=%platf%^
+ /p:ForceRegen=true
+
+@echo off
+exit /B %ERRORLEVEL%
+
+:Build
+rem Call on MSBuild to do the work, echo the command.
+rem Passing %1-9 is not the preferred option, but argument parsing in
+rem batch is, shall we say, "lackluster"
+echo on
+%MSBUILD% "%dir%pcbuild.proj" /t:%target% %parallel% %verbose%^
+ /p:Configuration=%conf% /p:Platform=%platf%^
+ /p:IncludeExternals=%IncludeExternals%^
+ /p:IncludeCTypes=%IncludeCTypes%^
+ /p:IncludeSSL=%IncludeSSL% /p:IncludeTkinter=%IncludeTkinter%^
+ /p:UseTestMarker=%UseTestMarker% %GITProperty%^
+ %1 %2 %3 %4 %5 %6 %7 %8 %9
+
+@echo off
+exit /b %ERRORLEVEL%
+
+:Version
+rem Display the current build version information
+call "%dir%find_msbuild.bat" %MSBUILD%
+if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)
+%MSBUILD% "%dir%pythoncore.vcxproj" /t:ShowVersionInfo /v:m /nologo %1 %2 %3 %4 %5 %6 %7 %8 %9
if ERRORLEVEL 1 exit /b 3
\ No newline at end of file
-@%comspec% /k env.bat %*\r
+@%comspec% /k env.bat %*
-@echo off\r
-rem A batch program to clean a particular configuration,\r
-rem just for convenience.\r
-\r
-call "%~dp0build.bat" -t Clean %*\r
+@echo off
+rem A batch program to clean a particular configuration,
+rem just for convenience.
+
+call "%~dp0build.bat" -t Clean %*
-@echo off\r
-rem This script adds the latest available tools to the path for the current\r
-rem command window. However, most builds of Python will ignore the version\r
-rem of the tools on PATH and use PlatformToolset instead. Ideally, both sets of\r
-rem tools should be the same version to avoid potential conflicts.\r
-rem\r
-rem To build Python with an earlier toolset, pass "/p:PlatformToolset=v100" (or\r
-rem 'v110', 'v120' or 'v140') to the build script.\r
-\r
-echo Build environments: x86, amd64, x86_amd64\r
-echo.\r
-set _ARGS=%*\r
-if NOT DEFINED _ARGS set _ARGS=amd64\r
-\r
-if not exist "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" goto :skip_vswhere\r
-set VSTOOLS=\r
-for /F "tokens=*" %%i in ('"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -property installationPath -latest -prerelease -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64') DO @(set VSTOOLS=%%i\VC\Auxiliary\Build\vcvarsall.bat)\r
-if not defined VSTOOLS goto :skip_vswhere\r
-call "%VSTOOLS%" %_ARGS%\r
-exit /B 0\r
-\r
-:skip_vswhere\r
-if not defined VSTOOLS set VSTOOLS=%VS140COMNTOOLS%\r
-if not defined VSTOOLS set VSTOOLS=%VS120COMNTOOLS%\r
-if not defined VSTOOLS set VSTOOLS=%VS110COMNTOOLS%\r
-if not defined VSTOOLS set VSTOOLS=%VS100COMNTOOLS%\r
-call "%VSTOOLS%..\..\VC\vcvarsall.bat" %_ARGS%\r
+@echo off
+rem This script adds the latest available tools to the path for the current
+rem command window. However, most builds of Python will ignore the version
+rem of the tools on PATH and use PlatformToolset instead. Ideally, both sets of
+rem tools should be the same version to avoid potential conflicts.
+rem
+rem To build Python with an earlier toolset, pass "/p:PlatformToolset=v100" (or
+rem 'v110', 'v120' or 'v140') to the build script.
+
+echo Build environments: x86, amd64, x86_amd64
+echo.
+set _ARGS=%*
+if NOT DEFINED _ARGS set _ARGS=amd64
+
+if not exist "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" goto :skip_vswhere
+set VSTOOLS=
+for /F "tokens=*" %%i in ('"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -property installationPath -latest -prerelease -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64') DO @(set VSTOOLS=%%i\VC\Auxiliary\Build\vcvarsall.bat)
+if not defined VSTOOLS goto :skip_vswhere
+call "%VSTOOLS%" %_ARGS%
+exit /B 0
+
+:skip_vswhere
+if not defined VSTOOLS set VSTOOLS=%VS140COMNTOOLS%
+if not defined VSTOOLS set VSTOOLS=%VS120COMNTOOLS%
+if not defined VSTOOLS set VSTOOLS=%VS110COMNTOOLS%
+if not defined VSTOOLS set VSTOOLS=%VS100COMNTOOLS%
+call "%VSTOOLS%..\..\VC\vcvarsall.bat" %_ARGS%
-$pcbuild = $script:MyInvocation.MyCommand.Path | Split-Path -parent;\r
-& cmd /K "$pcbuild\env.bat" $args\r
+$pcbuild = $script:MyInvocation.MyCommand.Path | Split-Path -parent;
+& cmd /K "$pcbuild\env.bat" $args
-@rem\r
-@rem Searches for MSBuild.exe. This is the only tool we need to initiate\r
-@rem a build, so we no longer search for the full VC toolset.\r
-@rem\r
-@rem This file is supposed to modify the state of the caller (specifically\r
-@rem the MSBUILD variable), so we do not use setlocal or echo, and avoid\r
-@rem changing any other persistent state.\r
-@rem\r
-\r
-@rem No arguments provided means do full search\r
-@if '%1' EQU '' goto :begin_search\r
-\r
-@rem One argument may be the full path. Use a goto so we don't try to\r
-@rem parse the next if statement - incorrect quoting in the multi-arg\r
-@rem case can cause us to break immediately.\r
-@if '%2' EQU '' goto :one_arg\r
-\r
-@rem Entire command line may represent the full path if quoting failed.\r
-@if exist "%*" (set MSBUILD="%*") & (set _Py_MSBuild_Source=environment) & goto :found\r
-@goto :begin_search\r
-\r
-:one_arg\r
-@if exist "%~1" (set MSBUILD="%~1") & (set _Py_MSBuild_Source=environment) & goto :found\r
-\r
-:begin_search\r
-@set MSBUILD=\r
-\r
-@rem If msbuild.exe is on the PATH, assume that the user wants that one.\r
-@where msbuild > "%TEMP%\msbuild.loc" 2> nul && set /P MSBUILD= < "%TEMP%\msbuild.loc" & del "%TEMP%\msbuild.loc"\r
-@if exist "%MSBUILD%" set MSBUILD="%MSBUILD%" & (set _Py_MSBuild_Source=PATH) & goto :found\r
-\r
-@rem VS 2017 and later provide vswhere.exe, which can be used\r
-@if not exist "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" goto :skip_vswhere\r
-@set _Py_MSBuild_Root=\r
-@for /F "tokens=*" %%i in ('"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -property installationPath -latest -prerelease -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64') DO @(set _Py_MSBuild_Root=%%i\MSBuild)\r
-@if not defined _Py_MSBuild_Root goto :skip_vswhere\r
-@for %%j in (Current 15.0) DO @if exist "%_Py_MSBuild_Root%\%%j\Bin\msbuild.exe" (set MSBUILD="%_Py_MSBuild_Root%\%%j\Bin\msbuild.exe")\r
-@set _Py_MSBuild_Root=\r
-@if defined MSBUILD @if exist %MSBUILD% (set _Py_MSBuild_Source=Visual Studio installation) & goto :found\r
-:skip_vswhere\r
-\r
-@rem VS 2015 and earlier register MSBuild separately, so we can find it.\r
-@reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\14.0" /v MSBuildToolsPath /reg:32 >nul 2>nul\r
-@if NOT ERRORLEVEL 1 @for /F "tokens=1,2*" %%i in ('reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\14.0" /v MSBuildToolsPath /reg:32') DO @(\r
- @if "%%i"=="MSBuildToolsPath" @if exist "%%k\msbuild.exe" @(set MSBUILD="%%k\msbuild.exe")\r
-)\r
-@if exist %MSBUILD% (set _Py_MSBuild_Source=registry) & goto :found\r
-\r
-\r
-@exit /b 1\r
-\r
-:found\r
-@pushd %MSBUILD% >nul 2>nul\r
-@if not ERRORLEVEL 1 @(\r
- @if exist msbuild.exe @(set MSBUILD="%CD%\msbuild.exe") else @(set MSBUILD=)\r
- @popd\r
-)\r
-\r
-@if defined MSBUILD @echo Using %MSBUILD% (found in the %_Py_MSBuild_Source%)\r
-@if not defined MSBUILD @echo Failed to find MSBuild\r
-@set _Py_MSBuild_Source=\r
-@if not defined MSBUILD @exit /b 1\r
-@exit /b 0\r
+@rem
+@rem Searches for MSBuild.exe. This is the only tool we need to initiate
+@rem a build, so we no longer search for the full VC toolset.
+@rem
+@rem This file is supposed to modify the state of the caller (specifically
+@rem the MSBUILD variable), so we do not use setlocal or echo, and avoid
+@rem changing any other persistent state.
+@rem
+
+@rem No arguments provided means do full search
+@if '%1' EQU '' goto :begin_search
+
+@rem One argument may be the full path. Use a goto so we don't try to
+@rem parse the next if statement - incorrect quoting in the multi-arg
+@rem case can cause us to break immediately.
+@if '%2' EQU '' goto :one_arg
+
+@rem Entire command line may represent the full path if quoting failed.
+@if exist "%*" (set MSBUILD="%*") & (set _Py_MSBuild_Source=environment) & goto :found
+@goto :begin_search
+
+:one_arg
+@if exist "%~1" (set MSBUILD="%~1") & (set _Py_MSBuild_Source=environment) & goto :found
+
+:begin_search
+@set MSBUILD=
+
+@rem If msbuild.exe is on the PATH, assume that the user wants that one.
+@where msbuild > "%TEMP%\msbuild.loc" 2> nul && set /P MSBUILD= < "%TEMP%\msbuild.loc" & del "%TEMP%\msbuild.loc"
+@if exist "%MSBUILD%" set MSBUILD="%MSBUILD%" & (set _Py_MSBuild_Source=PATH) & goto :found
+
+@rem VS 2017 and later provide vswhere.exe, which can be used
+@if not exist "%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" goto :skip_vswhere
+@set _Py_MSBuild_Root=
+@for /F "tokens=*" %%i in ('"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -property installationPath -latest -prerelease -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64') DO @(set _Py_MSBuild_Root=%%i\MSBuild)
+@if not defined _Py_MSBuild_Root goto :skip_vswhere
+@for %%j in (Current 15.0) DO @if exist "%_Py_MSBuild_Root%\%%j\Bin\msbuild.exe" (set MSBUILD="%_Py_MSBuild_Root%\%%j\Bin\msbuild.exe")
+@set _Py_MSBuild_Root=
+@if defined MSBUILD @if exist %MSBUILD% (set _Py_MSBuild_Source=Visual Studio installation) & goto :found
+:skip_vswhere
+
+@rem VS 2015 and earlier register MSBuild separately, so we can find it.
+@reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\14.0" /v MSBuildToolsPath /reg:32 >nul 2>nul
+@if NOT ERRORLEVEL 1 @for /F "tokens=1,2*" %%i in ('reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\14.0" /v MSBuildToolsPath /reg:32') DO @(
+ @if "%%i"=="MSBuildToolsPath" @if exist "%%k\msbuild.exe" @(set MSBUILD="%%k\msbuild.exe")
+)
+@if exist %MSBUILD% (set _Py_MSBuild_Source=registry) & goto :found
+
+
+@exit /b 1
+
+:found
+@pushd %MSBUILD% >nul 2>nul
+@if not ERRORLEVEL 1 @(
+ @if exist msbuild.exe @(set MSBUILD="%CD%\msbuild.exe") else @(set MSBUILD=)
+ @popd
+)
+
+@if defined MSBUILD @echo Using %MSBUILD% (found in the %_Py_MSBuild_Source%)
+@if not defined MSBUILD @echo Failed to find MSBuild
+@set _Py_MSBuild_Source=
+@if not defined MSBUILD @exit /b 1
+@exit /b 0
-@rem\r
-@rem Searches for python.exe and may download a private copy from nuget.\r
-@rem\r
-@rem This file is supposed to modify the state of the caller (specifically\r
-@rem the MSBUILD variable), so we do not use setlocal or echo, and avoid\r
-@rem changing any other persistent state.\r
-@rem\r
-\r
-@set _Py_D=%~dp0\r
-\r
-@rem First argument -q means only show the command in output\r
-@if '%1' EQU '-q' (shift && set _Py_Quiet=1)\r
-\r
-@rem No arguments provided means do full search\r
-@if '%1' EQU '' goto :begin_search\r
-\r
-@rem One argument may be the full path. Use a goto so we don't try to\r
-@rem parse the next if statement - incorrect quoting in the multi-arg\r
-@rem case can cause us to break immediately.\r
-@if '%2' EQU '' goto :one_arg\r
-\r
-@rem Entire command line may represent the full path if quoting failed.\r
-@if exist "%*" (set PYTHON="%*") & (set _Py_Python_Source=from environment) & goto :found\r
-@goto :begin_search\r
-\r
-:one_arg\r
-@if exist "%~1" (set PYTHON="%~1") & (set _Py_Python_Source=from environment) & goto :found\r
-\r
-:begin_search\r
-@set PYTHON=\r
-\r
-@rem If there is an active virtual env, use that one\r
-@if NOT "%VIRTUAL_ENV%"=="" (set PYTHON="%VIRTUAL_ENV%\Scripts\python.exe") & (set _Py_Python_Source=found in virtual env) & goto :found\r
-\r
-@set _Py_EXTERNALS_DIR=%EXTERNALS_DIR%\r
-@if "%_Py_EXTERNALS_DIR%"=="" (set _Py_EXTERNALS_DIR=%_Py_D%\..\externals)\r
-\r
-@rem If we have Python in externals, use that one\r
-@if exist "%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe" ("%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe" -Ec "import sys; assert sys.version_info[:2] >= (3, 8)" >nul 2>nul) && (set PYTHON="%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe") && (set _Py_Python_Source=found in externals directory) && goto :found || rmdir /Q /S "%_Py_EXTERNALS_DIR%\pythonx86"\r
-\r
-@rem If HOST_PYTHON is recent enough, use that\r
-@if NOT "%HOST_PYTHON%"=="" @%HOST_PYTHON% -Ec "import sys; assert sys.version_info[:2] >= (3, 8)" >nul 2>nul && (set PYTHON="%HOST_PYTHON%") && (set _Py_Python_Source=found as HOST_PYTHON) && goto :found\r
-\r
-@rem If py.exe finds a recent enough version, use that one\r
-@for %%p in (3.10 3.9 3.8) do @py -%%p -EV >nul 2>&1 && (set PYTHON=py -%%p) && (set _Py_Python_Source=found %%p with py.exe) && goto :found\r
-\r
-@if NOT exist "%_Py_EXTERNALS_DIR%" mkdir "%_Py_EXTERNALS_DIR%"\r
-@set _Py_NUGET=%NUGET%\r
-@set _Py_NUGET_URL=%NUGET_URL%\r
-@set _Py_HOST_PYTHON=%HOST_PYTHON%\r
-@if "%_Py_HOST_PYTHON%"=="" set _Py_HOST_PYTHON=py\r
-@if "%_Py_NUGET%"=="" (set _Py_NUGET=%_Py_EXTERNALS_DIR%\nuget.exe)\r
-@if "%_Py_NUGET_URL%"=="" (set _Py_NUGET_URL=https://aka.ms/nugetclidl)\r
-@if NOT exist "%_Py_NUGET%" (\r
- @echo Downloading nuget...\r
- @rem NB: Must use single quotes around NUGET here, NOT double!\r
- @rem Otherwise, a space in the path would break things\r
- @rem If it fails, retry with any available copy of Python\r
- @powershell.exe -Command Invoke-WebRequest %_Py_NUGET_URL% -OutFile '%_Py_NUGET%'\r
- @if errorlevel 1 (\r
- @%_Py_HOST_PYTHON% -E "%_Py_D%\urlretrieve.py" "%_Py_NUGET_URL%" "%_Py_NUGET%"\r
- )\r
-)\r
-\r
-@if not "%_Py_Quiet%"=="1" @echo Installing Python via nuget...\r
-@"%_Py_NUGET%" install pythonx86 -ExcludeVersion -OutputDirectory "%_Py_EXTERNALS_DIR%"\r
-@rem Quote it here; it's not quoted later because "py -x.y" wouldn't work\r
-@if not errorlevel 1 (set PYTHON="%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe") & (set _Py_Python_Source=found on nuget.org) & goto :found\r
-\r
-\r
-@set _Py_D=\r
-@set _Py_Quiet=\r
-@set _Py_Python_Source=\r
-@set _Py_EXTERNALS_DIR=\r
-@set _Py_NUGET=\r
-@set _Py_NUGET_URL=\r
-@set _Py_HOST_PYTHON=\r
-@exit /b 1\r
-\r
-:found\r
-@if "%_Py_Quiet%"=="1" (@echo %PYTHON%) else @echo Using %PYTHON% (%_Py_Python_Source%)\r
-\r
-@set _Py_D=\r
-@set _Py_Quiet=\r
-@set _Py_Python_Source=\r
-@set _Py_EXTERNALS_DIR=\r
-@set _Py_NUGET=\r
-@set _Py_NUGET_URL=\r
-@set _Py_HOST_PYTHON=\r
+@rem
+@rem Searches for python.exe and may download a private copy from nuget.
+@rem
+@rem This file is supposed to modify the state of the caller (specifically
+@rem the MSBUILD variable), so we do not use setlocal or echo, and avoid
+@rem changing any other persistent state.
+@rem
+
+@set _Py_D=%~dp0
+
+@rem First argument -q means only show the command in output
+@if '%1' EQU '-q' (shift && set _Py_Quiet=1)
+
+@rem No arguments provided means do full search
+@if '%1' EQU '' goto :begin_search
+
+@rem One argument may be the full path. Use a goto so we don't try to
+@rem parse the next if statement - incorrect quoting in the multi-arg
+@rem case can cause us to break immediately.
+@if '%2' EQU '' goto :one_arg
+
+@rem Entire command line may represent the full path if quoting failed.
+@if exist "%*" (set PYTHON="%*") & (set _Py_Python_Source=from environment) & goto :found
+@goto :begin_search
+
+:one_arg
+@if exist "%~1" (set PYTHON="%~1") & (set _Py_Python_Source=from environment) & goto :found
+
+:begin_search
+@set PYTHON=
+
+@rem If there is an active virtual env, use that one
+@if NOT "%VIRTUAL_ENV%"=="" (set PYTHON="%VIRTUAL_ENV%\Scripts\python.exe") & (set _Py_Python_Source=found in virtual env) & goto :found
+
+@set _Py_EXTERNALS_DIR=%EXTERNALS_DIR%
+@if "%_Py_EXTERNALS_DIR%"=="" (set _Py_EXTERNALS_DIR=%_Py_D%\..\externals)
+
+@rem If we have Python in externals, use that one
+@if exist "%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe" ("%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe" -Ec "import sys; assert sys.version_info[:2] >= (3, 8)" >nul 2>nul) && (set PYTHON="%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe") && (set _Py_Python_Source=found in externals directory) && goto :found || rmdir /Q /S "%_Py_EXTERNALS_DIR%\pythonx86"
+
+@rem If HOST_PYTHON is recent enough, use that
+@if NOT "%HOST_PYTHON%"=="" @%HOST_PYTHON% -Ec "import sys; assert sys.version_info[:2] >= (3, 9)" >nul 2>nul && (set PYTHON="%HOST_PYTHON%") && (set _Py_Python_Source=found as HOST_PYTHON) && goto :found
+
+@rem If py.exe finds a recent enough version, use that one
+@for %%p in (3.10 3.9) do @py -%%p -EV >nul 2>&1 && (set PYTHON=py -%%p) && (set _Py_Python_Source=found %%p with py.exe) && goto :found
+
+@if NOT exist "%_Py_EXTERNALS_DIR%" mkdir "%_Py_EXTERNALS_DIR%"
+@set _Py_NUGET=%NUGET%
+@set _Py_NUGET_URL=%NUGET_URL%
+@set _Py_HOST_PYTHON=%HOST_PYTHON%
+@if "%_Py_HOST_PYTHON%"=="" set _Py_HOST_PYTHON=py
+@if "%_Py_NUGET%"=="" (set _Py_NUGET=%_Py_EXTERNALS_DIR%\nuget.exe)
+@if "%_Py_NUGET_URL%"=="" (set _Py_NUGET_URL=https://aka.ms/nugetclidl)
+@if NOT exist "%_Py_NUGET%" (
+ @echo Downloading nuget...
+ @rem NB: Must use single quotes around NUGET here, NOT double!
+ @rem Otherwise, a space in the path would break things
+ @rem If it fails, retry with any available copy of Python
+ @powershell.exe -Command Invoke-WebRequest %_Py_NUGET_URL% -OutFile '%_Py_NUGET%'
+ @if errorlevel 1 (
+ @%_Py_HOST_PYTHON% -E "%_Py_D%\urlretrieve.py" "%_Py_NUGET_URL%" "%_Py_NUGET%"
+ )
+)
+
+@if not "%_Py_Quiet%"=="1" @echo Installing Python via nuget...
+@"%_Py_NUGET%" install pythonx86 -ExcludeVersion -OutputDirectory "%_Py_EXTERNALS_DIR%"
+@rem Quote it here; it's not quoted later because "py -x.y" wouldn't work
+@if not errorlevel 1 (set PYTHON="%_Py_EXTERNALS_DIR%\pythonx86\tools\python.exe") & (set _Py_Python_Source=found on nuget.org) & goto :found
+
+
+@set _Py_D=
+@set _Py_Quiet=
+@set _Py_Python_Source=
+@set _Py_EXTERNALS_DIR=
+@set _Py_NUGET=
+@set _Py_NUGET_URL=
+@set _Py_HOST_PYTHON=
+@exit /b 1
+
+:found
+@if "%_Py_Quiet%"=="1" (@echo %PYTHON%) else @echo Using %PYTHON% (%_Py_Python_Source%)
+
+@set _Py_D=
+@set _Py_Quiet=
+@set _Py_Python_Source=
+@set _Py_EXTERNALS_DIR=
+@set _Py_NUGET=
+@set _Py_NUGET_URL=
+@set _Py_HOST_PYTHON=
-@echo off\r
-setlocal\r
-rem Simple script to fetch source for external libraries\r
-\r
-if NOT DEFINED PCBUILD (set PCBUILD=%~dp0)\r
-if NOT DEFINED EXTERNALS_DIR (set EXTERNALS_DIR=%PCBUILD%\..\externals)\r
-\r
-set DO_FETCH=true\r
-set DO_CLEAN=false\r
-set IncludeLibffiSrc=false\r
-set IncludeTkinterSrc=false\r
-set IncludeSSLSrc=false\r
-\r
-:CheckOpts\r
-if "%~1"=="--no-tkinter" (set IncludeTkinter=false) & shift & goto CheckOpts\r
-if "%~1"=="--no-openssl" (set IncludeSSL=false) & shift & goto CheckOpts\r
-if "%~1"=="--no-libffi" (set IncludeLibffi=false) & shift & goto CheckOpts\r
-if "%~1"=="--tkinter-src" (set IncludeTkinterSrc=true) & shift & goto CheckOpts\r
-if "%~1"=="--openssl-src" (set IncludeSSLSrc=true) & shift & goto CheckOpts\r
-if "%~1"=="--libffi-src" (set IncludeLibffiSrc=true) & shift & goto CheckOpts\r
-if "%~1"=="--python" (set PYTHON=%2) & shift & shift & goto CheckOpts\r
-if "%~1"=="--organization" (set ORG=%2) & shift & shift & goto CheckOpts\r
-if "%~1"=="-c" (set DO_CLEAN=true) & shift & goto CheckOpts\r
-if "%~1"=="--clean" (set DO_CLEAN=true) & shift & goto CheckOpts\r
-if "%~1"=="--clean-only" (set DO_FETCH=false) & goto clean\r
-\r
-rem Include old options for compatibility\r
-if "%~1"=="--no-tkinter" shift & goto CheckOpts\r
-if "%~1"=="--no-openssl" shift & goto CheckOpts\r
-\r
-if "x%~1" NEQ "x" goto usage\r
-\r
-if "%DO_CLEAN%"=="false" goto fetch\r
-:clean\r
-echo.Cleaning up external libraries.\r
-if exist "%EXTERNALS_DIR%" (\r
- rem Sometimes this fails the first time; try it twice\r
- rmdir /s /q "%EXTERNALS_DIR%" || rmdir /s /q "%EXTERNALS_DIR%"\r
-)\r
-\r
-if "%DO_FETCH%"=="false" goto end\r
-:fetch\r
-\r
-if "%ORG%"=="" (set ORG=python)\r
-call "%PCBUILD%\find_python.bat" "%PYTHON%"\r
-\r
-if NOT DEFINED PYTHON (\r
- where /Q git || echo Python 3.6 could not be found or installed, and git.exe is not on your PATH && exit /B 1\r
-)\r
-\r
-echo.Fetching external libraries...\r
-\r
-set libraries=\r
-set libraries=%libraries% bzip2-1.0.8\r
-if NOT "%IncludeLibffiSrc%"=="false" set libraries=%libraries% libffi-3.4.2\r
-if NOT "%IncludeSSLSrc%"=="false" set libraries=%libraries% openssl-1.1.1q\r
-set libraries=%libraries% sqlite-3.38.4.0\r
-if NOT "%IncludeTkinterSrc%"=="false" set libraries=%libraries% tcl-core-8.6.12.1\r
-if NOT "%IncludeTkinterSrc%"=="false" set libraries=%libraries% tk-8.6.12.1\r
-if NOT "%IncludeTkinterSrc%"=="false" set libraries=%libraries% tix-8.4.3.6\r
-set libraries=%libraries% xz-5.2.5\r
-set libraries=%libraries% zlib-1.2.12\r
-\r
-for %%e in (%libraries%) do (\r
- if exist "%EXTERNALS_DIR%\%%e" (\r
- echo.%%e already exists, skipping.\r
- ) else if NOT DEFINED PYTHON (\r
- echo.Fetching %%e with git...\r
- git clone --depth 1 https://github.com/%ORG%/cpython-source-deps --branch %%e "%EXTERNALS_DIR%\%%e"\r
- ) else (\r
- echo.Fetching %%e...\r
- %PYTHON% -E "%PCBUILD%\get_external.py" -O %ORG% -e "%EXTERNALS_DIR%" %%e\r
- )\r
-)\r
-\r
-echo.Fetching external binaries...\r
-\r
-set binaries=\r
-if NOT "%IncludeLibffi%"=="false" set binaries=%binaries% libffi-3.4.2\r
-if NOT "%IncludeSSL%"=="false" set binaries=%binaries% openssl-bin-1.1.1q\r
-if NOT "%IncludeTkinter%"=="false" set binaries=%binaries% tcltk-8.6.12.1\r
-if NOT "%IncludeSSLSrc%"=="false" set binaries=%binaries% nasm-2.11.06\r
-\r
-for %%b in (%binaries%) do (\r
- if exist "%EXTERNALS_DIR%\%%b" (\r
- echo.%%b already exists, skipping.\r
- ) else if NOT DEFINED PYTHON (\r
- echo.Fetching %%b with git...\r
- git clone --depth 1 https://github.com/%ORG%/cpython-bin-deps --branch %%b "%EXTERNALS_DIR%\%%b"\r
- ) else (\r
- echo.Fetching %%b...\r
- %PYTHON% -E "%PCBUILD%\get_external.py" -b -O %ORG% -e "%EXTERNALS_DIR%" %%b\r
- )\r
-)\r
-\r
-echo Finished.\r
-goto end\r
-\r
-:usage\r
-echo.Valid options: -c, --clean, --clean-only, --organization, --python,\r
-echo.--no-tkinter, --no-openssl\r
-echo.\r
-echo.Pull all sources and binaries necessary for compiling optional extension\r
-echo.modules that rely on external libraries.\r
-echo.\r
-echo.The --organization option determines which github organization to download\r
-echo.from, the --python option determines which Python 3.6+ interpreter to use\r
-echo.with PCbuild\get_external.py.\r
-echo.\r
-echo.Use the -c or --clean option to remove the entire externals directory.\r
-echo.\r
-echo.Use the --clean-only option to do the same cleaning, without pulling in\r
-echo.anything new.\r
-echo.\r
-exit /b -1\r
-\r
-:end\r
+@echo off
+setlocal
+rem Simple script to fetch source for external libraries
+
+if NOT DEFINED PCBUILD (set PCBUILD=%~dp0)
+if NOT DEFINED EXTERNALS_DIR (set EXTERNALS_DIR=%PCBUILD%\..\externals)
+
+set DO_FETCH=true
+set DO_CLEAN=false
+set IncludeLibffiSrc=false
+set IncludeTkinterSrc=false
+set IncludeSSLSrc=false
+
+:CheckOpts
+if "%~1"=="--no-tkinter" (set IncludeTkinter=false) & shift & goto CheckOpts
+if "%~1"=="--no-openssl" (set IncludeSSL=false) & shift & goto CheckOpts
+if "%~1"=="--no-libffi" (set IncludeLibffi=false) & shift & goto CheckOpts
+if "%~1"=="--tkinter-src" (set IncludeTkinterSrc=true) & shift & goto CheckOpts
+if "%~1"=="--openssl-src" (set IncludeSSLSrc=true) & shift & goto CheckOpts
+if "%~1"=="--libffi-src" (set IncludeLibffiSrc=true) & shift & goto CheckOpts
+if "%~1"=="--python" (set PYTHON=%2) & shift & shift & goto CheckOpts
+if "%~1"=="--organization" (set ORG=%2) & shift & shift & goto CheckOpts
+if "%~1"=="-c" (set DO_CLEAN=true) & shift & goto CheckOpts
+if "%~1"=="--clean" (set DO_CLEAN=true) & shift & goto CheckOpts
+if "%~1"=="--clean-only" (set DO_FETCH=false) & goto clean
+
+rem Include old options for compatibility
+if "%~1"=="--no-tkinter" shift & goto CheckOpts
+if "%~1"=="--no-openssl" shift & goto CheckOpts
+
+if "x%~1" NEQ "x" goto usage
+
+if "%DO_CLEAN%"=="false" goto fetch
+:clean
+echo.Cleaning up external libraries.
+if exist "%EXTERNALS_DIR%" (
+ rem Sometimes this fails the first time; try it twice
+ rmdir /s /q "%EXTERNALS_DIR%" || rmdir /s /q "%EXTERNALS_DIR%"
+)
+
+if "%DO_FETCH%"=="false" goto end
+:fetch
+
+if "%ORG%"=="" (set ORG=python)
+call "%PCBUILD%\find_python.bat" "%PYTHON%"
+
+if NOT DEFINED PYTHON (
+ where /Q git || echo Python 3.6 could not be found or installed, and git.exe is not on your PATH && exit /B 1
+)
+
+echo.Fetching external libraries...
+
+set libraries=
+set libraries=%libraries% bzip2-1.0.8
+if NOT "%IncludeLibffiSrc%"=="false" set libraries=%libraries% libffi-3.4.3
+if NOT "%IncludeSSLSrc%"=="false" set libraries=%libraries% openssl-1.1.1q
+set libraries=%libraries% sqlite-3.39.4.0
+if NOT "%IncludeTkinterSrc%"=="false" set libraries=%libraries% tcl-core-8.6.12.1
+if NOT "%IncludeTkinterSrc%"=="false" set libraries=%libraries% tk-8.6.12.1
+if NOT "%IncludeTkinterSrc%"=="false" set libraries=%libraries% tix-8.4.3.6
+set libraries=%libraries% xz-5.2.5
+set libraries=%libraries% zlib-1.2.13
+
+for %%e in (%libraries%) do (
+ if exist "%EXTERNALS_DIR%\%%e" (
+ echo.%%e already exists, skipping.
+ ) else if NOT DEFINED PYTHON (
+ echo.Fetching %%e with git...
+ git clone --depth 1 https://github.com/%ORG%/cpython-source-deps --branch %%e "%EXTERNALS_DIR%\%%e"
+ ) else (
+ echo.Fetching %%e...
+ %PYTHON% -E "%PCBUILD%\get_external.py" -O %ORG% -e "%EXTERNALS_DIR%" %%e
+ )
+)
+
+echo.Fetching external binaries...
+
+set binaries=
+if NOT "%IncludeLibffi%"=="false" set binaries=%binaries% libffi-3.4.3
+if NOT "%IncludeSSL%"=="false" set binaries=%binaries% openssl-bin-1.1.1q
+if NOT "%IncludeTkinter%"=="false" set binaries=%binaries% tcltk-8.6.12.1
+if NOT "%IncludeSSLSrc%"=="false" set binaries=%binaries% nasm-2.11.06
+
+for %%b in (%binaries%) do (
+ if exist "%EXTERNALS_DIR%\%%b" (
+ echo.%%b already exists, skipping.
+ ) else if NOT DEFINED PYTHON (
+ echo.Fetching %%b with git...
+ git clone --depth 1 https://github.com/%ORG%/cpython-bin-deps --branch %%b "%EXTERNALS_DIR%\%%b"
+ ) else (
+ echo.Fetching %%b...
+ %PYTHON% -E "%PCBUILD%\get_external.py" -b -O %ORG% -e "%EXTERNALS_DIR%" %%b
+ )
+)
+
+echo Finished.
+goto end
+
+:usage
+echo.Valid options: -c, --clean, --clean-only, --organization, --python,
+echo.--no-tkinter, --no-openssl
+echo.
+echo.Pull all sources and binaries necessary for compiling optional extension
+echo.modules that rely on external libraries.
+echo.
+echo.The --organization option determines which github organization to download
+echo.from, the --python option determines which Python 3.6+ interpreter to use
+echo.with PCbuild\get_external.py.
+echo.
+echo.Use the -c or --clean option to remove the entire externals directory.
+echo.
+echo.Use the --clean-only option to do the same cleaning, without pulling in
+echo.anything new.
+echo.
+exit /b -1
+
+:end
-@echo off\r
-rem start idle\r
-rem Usage: idle [-d]\r
-rem -d Run Debug build (python_d.exe). Else release build.\r
-\r
-setlocal\r
-set PCBUILD=%~dp0\r
-set exedir=%PCBUILD%\amd64\r
-set exe=python\r
-PATH %PATH%;..\externals\tcltk\bin\r
-\r
-:CheckOpts\r
-if "%1"=="-d" (set exe=%exe%_d) & shift & goto :CheckOpts\r
-if "%1"=="-p" (call :SetExeDir %2) & shift & shift & goto :CheckOpts\r
-\r
-set cmd=%exedir%\%exe% %PCBUILD%\..\Lib\idlelib\idle.py %1 %2 %3 %4 %5 %6 %7 %8 %9\r
-\r
-echo on\r
-%cmd%\r
-exit /B %LASTERRORCODE%\r
-\r
-:SetExeDir\r
-if /I %1 EQU Win32 (set exedir=%PCBUILD%\win32)\r
-if /I %1 EQU x64 (set exedir=%PCBUILD%\amd64)\r
-if /I %1 EQU ARM (set exedir=%PCBUILD%\arm32)\r
-if /I %1 EQU ARM64 (set exedir=%PCBUILD%\arm64)\r
-exit /B 0\r
+@echo off
+rem start idle
+rem Usage: idle [-d]
+rem -d Run Debug build (python_d.exe). Else release build.
+
+setlocal
+set PCBUILD=%~dp0
+set exedir=%PCBUILD%\amd64
+set exe=python
+PATH %PATH%;..\externals\tcltk\bin
+
+:CheckOpts
+if "%1"=="-d" (set exe=%exe%_d) & shift & goto :CheckOpts
+if "%1"=="-p" (call :SetExeDir %2) & shift & shift & goto :CheckOpts
+
+set cmd=%exedir%\%exe% %PCBUILD%\..\Lib\idlelib\idle.py %1 %2 %3 %4 %5 %6 %7 %8 %9
+
+echo on
+%cmd%
+exit /B %LASTERRORCODE%
+
+:SetExeDir
+if /I %1 EQU Win32 (set exedir=%PCBUILD%\win32)
+if /I %1 EQU x64 (set exedir=%PCBUILD%\amd64)
+if /I %1 EQU ARM (set exedir=%PCBUILD%\arm32)
+if /I %1 EQU ARM64 (set exedir=%PCBUILD%\arm64)
+exit /B 0
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- <Delete Files="@(_LIBFFIDLL->'$(OutDir)%(Filename)%(Extension)')" TreatErrorsAsWarnings="true" />\r
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+ <ItemDefinitionGroup>
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</Project>
\ No newline at end of file
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+ <ClInclude Include="$(lzmaDir)src\liblzma\check\crc32_table_be.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\check\crc32_table_le.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\check\crc64_table_be.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\check\crc64_table_le.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\alone_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\block_buffer_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\block_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\block_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\common.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\easy_preset.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\filter_common.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\filter_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\filter_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\index_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\index.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\memcmplen.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\outqueue.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\stream_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\common\stream_flags_common.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\delta\delta_common.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\delta\delta_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\delta\delta_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\delta\delta_private.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lz\lz_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lz\lz_encoder_hash_table.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lz\lz_encoder_hash.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lz\lz_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lzma\fastpos.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lzma\lzma_common.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lzma\lzma_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lzma\lzma_encoder_private.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lzma\lzma_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lzma\lzma2_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\lzma\lzma2_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\rangecoder\price.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\rangecoder\range_common.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\rangecoder\range_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\rangecoder\range_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\simple\simple_coder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\simple\simple_decoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\simple\simple_encoder.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)src\liblzma\simple\simple_private.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(lzmaDir)windows\vs2019\config.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ </ItemGroup>
</Project>
\ No newline at end of file
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemDefinitionGroup>\r
- <ClCompile>\r
- <AdditionalIncludeDirectories>$(opensslIncludeDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>\r
- </ClCompile>\r
- <Link>\r
- <AdditionalLibraryDirectories>$(opensslOutDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>\r
- <AdditionalDependencies>ws2_32.lib;libcrypto.lib;libssl.lib;%(AdditionalDependencies)</AdditionalDependencies>\r
- </Link>\r
- </ItemDefinitionGroup>\r
- <PropertyGroup>\r
- <_DLLSuffix>-1_1</_DLLSuffix>\r
- <_DLLSuffix Condition="$(Platform) == 'ARM'">$(_DLLSuffix)-arm</_DLLSuffix>\r
- <_DLLSuffix Condition="$(Platform) == 'ARM64'">$(_DLLSuffix)-arm64</_DLLSuffix>\r
- <OpenSSLDLLSuffix>$(_DLLSuffix)</OpenSSLDLLSuffix>\r
- </PropertyGroup>\r
- <ItemGroup>\r
- <_SSLDLL Include="$(opensslOutDir)\libcrypto$(_DLLSuffix).dll" />\r
- <_SSLDLL Include="$(opensslOutDir)\libcrypto$(_DLLSuffix).pdb" />\r
- <_SSLDLL Include="$(opensslOutDir)\libssl$(_DLLSuffix).dll" />\r
- <_SSLDLL Include="$(opensslOutDir)\libssl$(_DLLSuffix).pdb" />\r
- </ItemGroup>\r
- <Target Name="_CopySSLDLL"\r
- Inputs="@(_SSLDLL)"\r
- Outputs="@(_SSLDLL->'$(OutDir)%(Filename)%(Extension)')"\r
- Condition="$(SkipCopySSLDLL) == ''"\r
- AfterTargets="Build">\r
- <Copy SourceFiles="@(_SSLDLL)" DestinationFolder="$(OutDir)" />\r
- </Target>\r
- <Target Name="_CleanSSLDLL" Condition="$(SkipCopySSLDLL) == ''" BeforeTargets="Clean">\r
- <Delete Files="@(_SSLDLL->'$(OutDir)%(Filename)%(Extension)')" TreatErrorsAsWarnings="true" />\r
- </Target>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemDefinitionGroup>
+ <ClCompile>
+ <AdditionalIncludeDirectories>$(opensslIncludeDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ </ClCompile>
+ <Link>
+ <AdditionalLibraryDirectories>$(opensslOutDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+ <AdditionalDependencies>ws2_32.lib;libcrypto.lib;libssl.lib;%(AdditionalDependencies)</AdditionalDependencies>
+ </Link>
+ </ItemDefinitionGroup>
+ <PropertyGroup>
+ <_DLLSuffix>-1_1</_DLLSuffix>
+ <_DLLSuffix Condition="$(Platform) == 'ARM'">$(_DLLSuffix)-arm</_DLLSuffix>
+ <_DLLSuffix Condition="$(Platform) == 'ARM64'">$(_DLLSuffix)-arm64</_DLLSuffix>
+ <OpenSSLDLLSuffix>$(_DLLSuffix)</OpenSSLDLLSuffix>
+ </PropertyGroup>
+ <ItemGroup>
+ <_SSLDLL Include="$(opensslOutDir)\libcrypto$(_DLLSuffix).dll" />
+ <_SSLDLL Include="$(opensslOutDir)\libcrypto$(_DLLSuffix).pdb" />
+ <_SSLDLL Include="$(opensslOutDir)\libssl$(_DLLSuffix).dll" />
+ <_SSLDLL Include="$(opensslOutDir)\libssl$(_DLLSuffix).pdb" />
+ </ItemGroup>
+ <Target Name="_CopySSLDLL"
+ Inputs="@(_SSLDLL)"
+ Outputs="@(_SSLDLL->'$(OutDir)%(Filename)%(Extension)')"
+ Condition="$(SkipCopySSLDLL) == ''"
+ AfterTargets="Build">
+ <Copy SourceFiles="@(_SSLDLL)" DestinationFolder="$(OutDir)" />
+ </Target>
+ <Target Name="_CleanSSLDLL" Condition="$(SkipCopySSLDLL) == ''" BeforeTargets="Clean">
+ <Delete Files="@(_SSLDLL->'$(OutDir)%(Filename)%(Extension)')" TreatErrorsAsWarnings="true" />
+ </Target>
</Project>
\ No newline at end of file
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Release|Win32">\r
- <Configuration>Release</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|x64">\r
- <Configuration>Release</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|ARM">\r
- <Configuration>Release</Configuration>\r
- <Platform>ARM</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|ARM64">\r
- <Configuration>Release</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- </ItemGroup>\r
- <PropertyGroup Label="Globals">\r
- <ProjectGuid>{B5FD6F1D-129E-4BFF-9340-03606FAC7283}</ProjectGuid>\r
- </PropertyGroup>\r
-\r
- <Import Project="python.props" />\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />\r
-\r
- <PropertyGroup Label="Configuration" Condition="$(Platform) == 'Win32'">\r
- <ConfigurationType>Makefile</ConfigurationType>\r
- <Bitness>32</Bitness>\r
- <ArchName>x86</ArchName>\r
- <OpenSSLPlatform>VC-WIN32</OpenSSLPlatform>\r
- <SupportSigning>true</SupportSigning>\r
- </PropertyGroup>\r
-\r
- <PropertyGroup Label="Configuration" Condition="$(Platform) == 'x64'">\r
- <ConfigurationType>Makefile</ConfigurationType>\r
- <Bitness>64</Bitness>\r
- <ArchName>amd64</ArchName>\r
- <OpenSSLPlatform>VC-WIN64A-masm</OpenSSLPlatform>\r
- <SupportSigning>true</SupportSigning>\r
- </PropertyGroup>\r
-\r
- <PropertyGroup Label="Configuration" Condition="$(Platform) == 'ARM'">\r
- <ConfigurationType>Makefile</ConfigurationType>\r
- <Bitness>ARM</Bitness>\r
- <ArchName>ARM</ArchName>\r
- <OpenSSLPlatform>VC-WIN32-ARM</OpenSSLPlatform>\r
- <SupportSigning>true</SupportSigning>\r
- </PropertyGroup>\r
-\r
- <PropertyGroup Label="Configuration" Condition="$(Platform) == 'ARM64'">\r
- <ConfigurationType>Makefile</ConfigurationType>\r
- <Bitness>ARM64</Bitness>\r
- <ArchName>ARM64</ArchName>\r
- <OpenSSLPlatform>VC-WIN64-ARM</OpenSSLPlatform>\r
- <SupportSigning>true</SupportSigning>\r
- </PropertyGroup>\r
-\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />\r
- <Import Project="pyproject.props" />\r
-\r
- <PropertyGroup>\r
- <IntDir>$(opensslDir)\tmp$(Bitness)dll</IntDir>\r
- <OutDir>$(opensslOutDir)</OutDir>\r
- <NMakeBuildCommandLine>setlocal\r
-set VCINSTALLDIR=$(VCInstallDir)\r
-if not exist "$(IntDir.TrimEnd('\'))" mkdir "$(IntDir.TrimEnd('\'))"\r
-cd /D "$(IntDir.TrimEnd('\'))"\r
-$(Perl) "$(opensslDir)\configure" $(OpenSSLPlatform) no-asm\r
-nmake\r
-</NMakeBuildCommandLine>\r
- </PropertyGroup>\r
-\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />\r
-\r
- <Target Name="_PatchUplink" BeforeTargets="Build">\r
- <PropertyGroup>\r
- <Uplink>$(opensslDir)\ms\uplink.c</Uplink>\r
- <BeforePatch>((h = GetModuleHandle(NULL)) == NULL)</BeforePatch>\r
- <AfterPatch>((h = GetModuleHandleA("_ssl.pyd")) == NULL) if ((h = GetModuleHandleA("_ssl_d.pyd")) == NULL) if ((h = GetModuleHandle(NULL)) == NULL /*patched*/)</AfterPatch>\r
- </PropertyGroup>\r
- <Error Text="Cannot find $(Uplink)" Condition="!Exists($(Uplink))" />\r
- <PropertyGroup>\r
- <_Original>$([System.IO.File]::ReadAllText($(Uplink)))</_Original>\r
- <_Patched>$(_Original.Replace($(BeforePatch), $(AfterPatch)))</_Patched>\r
- <IsPatched>false</IsPatched>\r
- <IsPatched Condition="$(_Patched) == $(_Original)">true</IsPatched>\r
- </PropertyGroup>\r
- <Message Text="$(Uplink) is already patched" Importance="normal" Condition="$(IsPatched)" />\r
- <Message Text="Patching $(Uplink)" Importance="high" Condition="!$(IsPatched)" />\r
- <WriteLinesToFile File="$(Uplink)"\r
- Lines="$(_Patched)"\r
- Overwrite="true"\r
- Encoding="ASCII"\r
- Condition="!$(IsPatched)" />\r
- </Target>\r
-\r
- <Target Name="_CopyToOutput" AfterTargets="Build">\r
- <ItemGroup>\r
- <_Built Include="$(opensslDir)\LICENSE" />\r
- <_Built Include="$(IntDir)\libcrypto.lib;$(IntDir)\libcrypto-*.dll;$(IntDir)\libcrypto-*.pdb" />\r
- <_Built Include="$(IntDir)\libssl.lib;$(IntDir)\libssl-*.dll;$(IntDir)\libssl-*.pdb" />\r
- <_AppLink Include="$(opensslDir)\ms\applink.c" />\r
- <_Include Include="$(opensslDir)\Include\openssl\*.h" />\r
- <_Include Include="$(IntDir)\include\openssl\*.h" />\r
- </ItemGroup>\r
- <MakeDir Directories="$(opensslOutDir)\include\openssl" />\r
- <Copy SourceFiles="@(_Built)" DestinationFolder="$(opensslOutDir)" />\r
- <Copy SourceFiles="@(_AppLink)" DestinationFolder="$(opensslOutDir)\include" />\r
- <Copy SourceFiles="@(_Include)" DestinationFolder="$(opensslOutDir)\include\openssl" />\r
- </Target>\r
-\r
- <Target Name="SignFiles" AfterTargets="Build" Condition="$(_SignCommand) != ''">\r
- <ItemGroup>\r
- <FilesToSign Include="$(opensslOutDir)\lib*.dll" />\r
- </ItemGroup>\r
- <Exec Command="$(_SignCommand) %(FilesToSign.FullPath)" ContinueOnError="true" />\r
- </Target>\r
-\r
- <Target Name="Clean" />\r
- <Target Name="CleanAll">\r
- <Delete Files="$(TargetPath);$(BuildPath)$(tclDLLName)" />\r
- <RemoveDir Directories="$(IntDir)" />\r
- </Target>\r
- \r
- <Target Name="LocateNMake">\r
- <PropertyGroup>\r
- <OutputFilename Condition="$(OutputFilename) == ''">$(Temp)\nmake.loc</OutputFilename>\r
- </PropertyGroup>\r
- <ItemGroup>\r
- <_NMakeExe Include="$(VC_ExecutablePath_x86_x86)\nmake.exe" Condition="$(VC_ExecutablePath_x86_x86) != ''" />\r
- </ItemGroup>\r
- <MakeDir Directories="$([System.IO.Path]::GetDirectoryName($(OutputFilename)))" />\r
- <WriteLinesToFile File="$(OutputFilename)" Lines="@(_NMakeExe)" />\r
- </Target>\r
- \r
- <Target Name="ResolveAssemblyReferences" />\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|x64">
+ <Configuration>Release</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM">
+ <Configuration>Release</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM64">
+ <Configuration>Release</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+ <ProjectGuid>{B5FD6F1D-129E-4BFF-9340-03606FAC7283}</ProjectGuid>
+ </PropertyGroup>
+
+ <Import Project="python.props" />
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+
+ <PropertyGroup Label="Configuration" Condition="$(Platform) == 'Win32'">
+ <ConfigurationType>Makefile</ConfigurationType>
+ <Bitness>32</Bitness>
+ <ArchName>x86</ArchName>
+ <OpenSSLPlatform>VC-WIN32</OpenSSLPlatform>
+ <SupportSigning>true</SupportSigning>
+ </PropertyGroup>
+
+ <PropertyGroup Label="Configuration" Condition="$(Platform) == 'x64'">
+ <ConfigurationType>Makefile</ConfigurationType>
+ <Bitness>64</Bitness>
+ <ArchName>amd64</ArchName>
+ <OpenSSLPlatform>VC-WIN64A-masm</OpenSSLPlatform>
+ <SupportSigning>true</SupportSigning>
+ </PropertyGroup>
+
+ <PropertyGroup Label="Configuration" Condition="$(Platform) == 'ARM'">
+ <ConfigurationType>Makefile</ConfigurationType>
+ <Bitness>ARM</Bitness>
+ <ArchName>ARM</ArchName>
+ <OpenSSLPlatform>VC-WIN32-ARM</OpenSSLPlatform>
+ <SupportSigning>true</SupportSigning>
+ </PropertyGroup>
+
+ <PropertyGroup Label="Configuration" Condition="$(Platform) == 'ARM64'">
+ <ConfigurationType>Makefile</ConfigurationType>
+ <Bitness>ARM64</Bitness>
+ <ArchName>ARM64</ArchName>
+ <OpenSSLPlatform>VC-WIN64-ARM</OpenSSLPlatform>
+ <SupportSigning>true</SupportSigning>
+ </PropertyGroup>
+
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <Import Project="pyproject.props" />
+
+ <PropertyGroup>
+ <IntDir>$(opensslDir)\tmp$(Bitness)dll</IntDir>
+ <OutDir>$(opensslOutDir)</OutDir>
+ <NMakeBuildCommandLine>setlocal
+set VCINSTALLDIR=$(VCInstallDir)
+if not exist "$(IntDir.TrimEnd('\'))" mkdir "$(IntDir.TrimEnd('\'))"
+cd /D "$(IntDir.TrimEnd('\'))"
+$(Perl) "$(opensslDir)\configure" $(OpenSSLPlatform) no-asm
+nmake
+</NMakeBuildCommandLine>
+ </PropertyGroup>
+
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+
+ <Target Name="_PatchUplink" BeforeTargets="Build">
+ <PropertyGroup>
+ <Uplink>$(opensslDir)\ms\uplink.c</Uplink>
+ <BeforePatch>((h = GetModuleHandle(NULL)) == NULL)</BeforePatch>
+ <AfterPatch>((h = GetModuleHandleA("_ssl.pyd")) == NULL) if ((h = GetModuleHandleA("_ssl_d.pyd")) == NULL) if ((h = GetModuleHandle(NULL)) == NULL /*patched*/)</AfterPatch>
+ </PropertyGroup>
+ <Error Text="Cannot find $(Uplink)" Condition="!Exists($(Uplink))" />
+ <PropertyGroup>
+ <_Original>$([System.IO.File]::ReadAllText($(Uplink)))</_Original>
+ <_Patched>$(_Original.Replace($(BeforePatch), $(AfterPatch)))</_Patched>
+ <IsPatched>false</IsPatched>
+ <IsPatched Condition="$(_Patched) == $(_Original)">true</IsPatched>
+ </PropertyGroup>
+ <Message Text="$(Uplink) is already patched" Importance="normal" Condition="$(IsPatched)" />
+ <Message Text="Patching $(Uplink)" Importance="high" Condition="!$(IsPatched)" />
+ <WriteLinesToFile File="$(Uplink)"
+ Lines="$(_Patched)"
+ Overwrite="true"
+ Encoding="ASCII"
+ Condition="!$(IsPatched)" />
+ </Target>
+
+ <Target Name="_CopyToOutput" AfterTargets="Build">
+ <ItemGroup>
+ <_Built Include="$(opensslDir)\LICENSE" />
+ <_Built Include="$(IntDir)\libcrypto.lib;$(IntDir)\libcrypto-*.dll;$(IntDir)\libcrypto-*.pdb" />
+ <_Built Include="$(IntDir)\libssl.lib;$(IntDir)\libssl-*.dll;$(IntDir)\libssl-*.pdb" />
+ <_AppLink Include="$(opensslDir)\ms\applink.c" />
+ <_Include Include="$(opensslDir)\Include\openssl\*.h" />
+ <_Include Include="$(IntDir)\include\openssl\*.h" />
+ </ItemGroup>
+ <MakeDir Directories="$(opensslOutDir)\include\openssl" />
+ <Copy SourceFiles="@(_Built)" DestinationFolder="$(opensslOutDir)" />
+ <Copy SourceFiles="@(_AppLink)" DestinationFolder="$(opensslOutDir)\include" />
+ <Copy SourceFiles="@(_Include)" DestinationFolder="$(opensslOutDir)\include\openssl" />
+ </Target>
+
+ <Target Name="SignFiles" AfterTargets="Build" Condition="$(_SignCommand) != ''">
+ <ItemGroup>
+ <FilesToSign Include="$(opensslOutDir)\lib*.dll" />
+ </ItemGroup>
+ <Exec Command="$(_SignCommand) %(FilesToSign.FullPath)" ContinueOnError="true" />
+ </Target>
+
+ <Target Name="Clean" />
+ <Target Name="CleanAll">
+ <Delete Files="$(TargetPath);$(BuildPath)$(tclDLLName)" />
+ <RemoveDir Directories="$(IntDir)" />
+ </Target>
+
+ <Target Name="LocateNMake">
+ <PropertyGroup>
+ <OutputFilename Condition="$(OutputFilename) == ''">$(Temp)\nmake.loc</OutputFilename>
+ </PropertyGroup>
+ <ItemGroup>
+ <_NMakeExe Include="$(VC_ExecutablePath_x86_x86)\nmake.exe" Condition="$(VC_ExecutablePath_x86_x86) != ''" />
+ </ItemGroup>
+ <MakeDir Directories="$([System.IO.Path]::GetDirectoryName($(OutputFilename)))" />
+ <WriteLinesToFile File="$(OutputFilename)" Lines="@(_NMakeExe)" />
+ </Target>
+
+ <Target Name="ResolveAssemblyReferences" />
</Project>
\ No newline at end of file
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props"/>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets"/>\r
- <PropertyGroup Label="Globals">\r
- <ProjectGuid>{CC9B93A2-439D-4058-9D29-6DCF43774405}</ProjectGuid>\r
- <Platform Condition="'$(Platform)' == ''">Win32</Platform>\r
- <Configuration Condition="'$(Configuration)' == ''">Release</Configuration>\r
- <IncludeExtensions Condition="'$(IncludeExtensions)' == ''">true</IncludeExtensions>\r
- <IncludeExternals Condition="'$(IncludeExternals)' == ''">true</IncludeExternals>\r
- <IncludeTests Condition="'$(IncludeTest)' == ''">true</IncludeTests>\r
- <IncludeCTypes Condition="'$(IncludeCTypes)' == ''">true</IncludeCTypes>\r
- <IncludeSSL Condition="'$(IncludeSSL)' == ''">true</IncludeSSL>\r
- <IncludeTkinter Condition="'$(IncludeTkinter)' == ''">true</IncludeTkinter>\r
- <IncludeUwp Condition="'$(IncludeUwp)' == ''">false</IncludeUwp>\r
- </PropertyGroup>\r
-\r
- <ItemDefinitionGroup>\r
- <FreezeProjects>\r
- <Platform>$(PreferredToolArchitecture)</Platform>\r
- <Configuration>$(Configuration)</Configuration>\r
- <Configuration Condition="$(Configuration) == 'PGInstrument'">Release</Configuration>\r
- <Properties></Properties>\r
- <BuildTarget>Build</BuildTarget>\r
- <CleanTarget>Clean</CleanTarget>\r
- <CleanAllTarget>CleanAll</CleanAllTarget>\r
- <BuildInParallel>false</BuildInParallel>\r
- </FreezeProjects>\r
- <Projects>\r
- <Platform>$(Platform)</Platform>\r
- <Configuration>$(Configuration)</Configuration>\r
- <Properties></Properties>\r
- <BuildTarget>Build</BuildTarget>\r
- <CleanTarget>Clean</CleanTarget>\r
- <CleanAllTarget>CleanAll</CleanAllTarget>\r
- <BuildInParallel>true</BuildInParallel>\r
- </Projects>\r
- <Projects2>\r
- <Platform>$(Platform)</Platform>\r
- <Configuration>$(Configuration)</Configuration>\r
- <Properties></Properties>\r
- <BuildTarget>Build</BuildTarget>\r
- <CleanTarget>Clean</CleanTarget>\r
- <CleanAllTarget>CleanAll</CleanAllTarget>\r
- <BuildInParallel>false</BuildInParallel>\r
- </Projects2>\r
- </ItemDefinitionGroup>\r
- <ItemGroup>\r
- <!-- pythonXY.dll -->\r
- <!--\r
- Parallel build is explicitly disabled for this project because it\r
- causes many conflicts between pythoncore and projects that depend\r
- on pythoncore. Once the core DLL has been built, subsequent\r
- projects will be built in parallel.\r
- -->\r
- <Projects Include="pythoncore.vcxproj">\r
- <BuildInParallel>false</BuildInParallel>\r
- </Projects>\r
- <!-- python3.dll -->\r
- <Projects Include="python3dll.vcxproj" />\r
- <!-- py[w].exe -->\r
- <Projects Include="pylauncher.vcxproj;pywlauncher.vcxproj" />\r
- <!-- pyshellext.dll -->\r
- <Projects Include="pyshellext.vcxproj" />\r
- <!-- Extension modules -->\r
- <ExtensionModules Include="_asyncio;_zoneinfo;_decimal;_elementtree;_msi;_multiprocessing;_overlapped;pyexpat;_queue;select;unicodedata;winsound;_uuid" />\r
- <ExtensionModules Include="_ctypes" Condition="$(IncludeCTypes)" />\r
- <!-- Extension modules that require external sources -->\r
- <ExternalModules Include="_bz2;_lzma;_sqlite3" />\r
- <!-- venv launchers -->\r
- <Projects Include="venvlauncher.vcxproj;venvwlauncher.vcxproj" />\r
- <!-- _ssl will build _socket as well, which may cause conflicts in parallel builds -->\r
- <ExtensionModules Include="_socket" Condition="!$(IncludeSSL) or !$(IncludeExternals)" />\r
- <ExternalModules Include="_ssl;_hashlib" Condition="$(IncludeSSL)" />\r
- <ExternalModules Include="_tkinter" Condition="$(IncludeTkinter)" />\r
- <ExtensionModules Include="@(ExternalModules->'%(Identity)')" Condition="$(IncludeExternals)" />\r
- <Projects Include="@(ExtensionModules->'%(Identity).vcxproj')" Condition="$(IncludeExtensions)" />\r
- <!-- Test modules -->\r
- <TestModules Include="_ctypes_test;_testbuffer;_testcapi;_testinternalcapi;_testembed;_testimportmultiple;_testmultiphase;_testconsole" />\r
- <TestModules Include="xxlimited" Condition="'$(Configuration)' == 'Release'" />\r
- <TestModules Include="xxlimited_35" Condition="'$(Configuration)' == 'Release'" />\r
- <Projects Include="@(TestModules->'%(Identity).vcxproj')" Condition="$(IncludeTests)">\r
- <!-- Disable parallel build for test modules -->\r
- <BuildInParallel>false</BuildInParallel>\r
- </Projects>\r
-\r
- <!-- _freeze_module -->\r
- <FreezeProjects Include="_freeze_module.vcxproj" />\r
- <!-- python[w].exe -->\r
- <Projects2 Include="python.vcxproj;pythonw.vcxproj" />\r
- <Projects2 Include="python_uwp.vcxproj;pythonw_uwp.vcxproj" Condition="$(IncludeUwp)" />\r
- <!-- venv[w]launcher.exe -->\r
- <Projects2 Include="venvlauncher.vcxproj;venvwlauncher.vcxproj" />\r
- </ItemGroup>\r
-\r
- <Target Name="Build">\r
- <MSBuild Projects="@(FreezeProjects)"\r
- Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"\r
- BuildInParallel="%(BuildInParallel)"\r
- StopOnFirstFailure="true"\r
- Targets="%(BuildTarget)" />\r
- <MSBuild Projects="@(Projects)"\r
- Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"\r
- BuildInParallel="%(BuildInParallel)"\r
- StopOnFirstFailure="true"\r
- Targets="%(BuildTarget)" />\r
- <MSBuild Projects="@(Projects2)"\r
- Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"\r
- BuildInParallel="%(BuildInParallel)"\r
- StopOnFirstFailure="true"\r
- Targets="%(BuildTarget)" />\r
- </Target>\r
-\r
- <Target Name="Clean">\r
- <MSBuild Projects="@(Projects2)"\r
- Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"\r
- BuildInParallel="%(BuildInParallel)"\r
- StopOnFirstFailure="false"\r
- Condition="%(CleanTarget) != ''"\r
- Targets="%(CleanTarget)" />\r
- <MSBuild Projects="@(Projects)"\r
- Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"\r
- BuildInParallel="%(BuildInParallel)"\r
- StopOnFirstFailure="false"\r
- Condition="%(CleanTarget) != ''"\r
- Targets="%(CleanTarget)" />\r
- </Target>\r
-\r
- <Target Name="CleanAll">\r
- <MSBuild Projects="@(Projects2)"\r
- Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"\r
- BuildInParallel="%(BuildInParallel)"\r
- StopOnFirstFailure="false"\r
- Condition="%(CleanAllTarget) != ''"\r
- Targets="%(CleanAllTarget)" />\r
- <MSBuild Projects="@(Projects)"\r
- Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"\r
- BuildInParallel="%(BuildInParallel)"\r
- StopOnFirstFailure="false"\r
- Condition="%(CleanAllTarget) != ''"\r
- Targets="%(CleanAllTarget)" />\r
- </Target>\r
-\r
- <Target Name="Rebuild" DependsOnTargets="Clean;Build" />\r
- <Target Name="RebuildAll" DependsOnTargets="CleanAll;Build" />\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props"/>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props"/>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets"/>
+ <PropertyGroup Label="Globals">
+ <ProjectGuid>{CC9B93A2-439D-4058-9D29-6DCF43774405}</ProjectGuid>
+ <Platform Condition="'$(Platform)' == ''">Win32</Platform>
+ <Configuration Condition="'$(Configuration)' == ''">Release</Configuration>
+ <IncludeExtensions Condition="'$(IncludeExtensions)' == ''">true</IncludeExtensions>
+ <IncludeExternals Condition="'$(IncludeExternals)' == ''">true</IncludeExternals>
+ <IncludeTests Condition="'$(IncludeTest)' == ''">true</IncludeTests>
+ <IncludeCTypes Condition="'$(IncludeCTypes)' == ''">true</IncludeCTypes>
+ <IncludeSSL Condition="'$(IncludeSSL)' == ''">true</IncludeSSL>
+ <IncludeTkinter Condition="'$(IncludeTkinter)' == ''">true</IncludeTkinter>
+ <IncludeUwp Condition="'$(IncludeUwp)' == ''">false</IncludeUwp>
+ </PropertyGroup>
+
+ <ItemDefinitionGroup>
+ <FreezeProjects>
+ <Platform>$(PreferredToolArchitecture)</Platform>
+ <Configuration>$(Configuration)</Configuration>
+ <Configuration Condition="$(Configuration) == 'PGInstrument'">Release</Configuration>
+ <Properties></Properties>
+ <BuildTarget>Build</BuildTarget>
+ <CleanTarget>Clean</CleanTarget>
+ <CleanAllTarget>CleanAll</CleanAllTarget>
+ <BuildInParallel>false</BuildInParallel>
+ </FreezeProjects>
+ <Projects>
+ <Platform>$(Platform)</Platform>
+ <Configuration>$(Configuration)</Configuration>
+ <Properties></Properties>
+ <BuildTarget>Build</BuildTarget>
+ <CleanTarget>Clean</CleanTarget>
+ <CleanAllTarget>CleanAll</CleanAllTarget>
+ <BuildInParallel>true</BuildInParallel>
+ </Projects>
+ <Projects2>
+ <Platform>$(Platform)</Platform>
+ <Configuration>$(Configuration)</Configuration>
+ <Properties></Properties>
+ <BuildTarget>Build</BuildTarget>
+ <CleanTarget>Clean</CleanTarget>
+ <CleanAllTarget>CleanAll</CleanAllTarget>
+ <BuildInParallel>false</BuildInParallel>
+ </Projects2>
+ </ItemDefinitionGroup>
+ <ItemGroup>
+ <!-- pythonXY.dll -->
+ <!--
+ Parallel build is explicitly disabled for this project because it
+ causes many conflicts between pythoncore and projects that depend
+ on pythoncore. Once the core DLL has been built, subsequent
+ projects will be built in parallel.
+ -->
+ <Projects Include="pythoncore.vcxproj">
+ <BuildInParallel>false</BuildInParallel>
+ </Projects>
+ <!-- python3.dll -->
+ <Projects Include="python3dll.vcxproj" />
+ <!-- py[w].exe -->
+ <Projects Include="pylauncher.vcxproj;pywlauncher.vcxproj" />
+ <!-- pyshellext.dll -->
+ <Projects Include="pyshellext.vcxproj" />
+ <!-- Extension modules -->
+ <ExtensionModules Include="_asyncio;_zoneinfo;_decimal;_elementtree;_msi;_multiprocessing;_overlapped;pyexpat;_queue;select;unicodedata;winsound;_uuid" />
+ <ExtensionModules Include="_ctypes" Condition="$(IncludeCTypes)" />
+ <!-- Extension modules that require external sources -->
+ <ExternalModules Include="_bz2;_lzma;_sqlite3" />
+ <!-- venv launchers -->
+ <Projects Include="venvlauncher.vcxproj;venvwlauncher.vcxproj" />
+ <!-- _ssl will build _socket as well, which may cause conflicts in parallel builds -->
+ <ExtensionModules Include="_socket" Condition="!$(IncludeSSL) or !$(IncludeExternals)" />
+ <ExternalModules Include="_ssl;_hashlib" Condition="$(IncludeSSL)" />
+ <ExternalModules Include="_tkinter" Condition="$(IncludeTkinter)" />
+ <ExtensionModules Include="@(ExternalModules->'%(Identity)')" Condition="$(IncludeExternals)" />
+ <Projects Include="@(ExtensionModules->'%(Identity).vcxproj')" Condition="$(IncludeExtensions)" />
+ <!-- Test modules -->
+ <TestModules Include="_ctypes_test;_testbuffer;_testcapi;_testinternalcapi;_testembed;_testimportmultiple;_testmultiphase;_testconsole" />
+ <TestModules Include="xxlimited" Condition="'$(Configuration)' == 'Release'" />
+ <TestModules Include="xxlimited_35" Condition="'$(Configuration)' == 'Release'" />
+ <Projects Include="@(TestModules->'%(Identity).vcxproj')" Condition="$(IncludeTests)">
+ <!-- Disable parallel build for test modules -->
+ <BuildInParallel>false</BuildInParallel>
+ </Projects>
+
+ <!-- _freeze_module -->
+ <FreezeProjects Include="_freeze_module.vcxproj" />
+ <!-- python[w].exe -->
+ <Projects2 Include="python.vcxproj;pythonw.vcxproj" />
+ <Projects2 Include="python_uwp.vcxproj;pythonw_uwp.vcxproj" Condition="$(IncludeUwp)" />
+ <!-- venv[w]launcher.exe -->
+ <Projects2 Include="venvlauncher.vcxproj;venvwlauncher.vcxproj" />
+ </ItemGroup>
+
+ <Target Name="Build">
+ <MSBuild Projects="@(FreezeProjects)"
+ Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"
+ BuildInParallel="%(BuildInParallel)"
+ StopOnFirstFailure="true"
+ Targets="%(BuildTarget)" />
+ <MSBuild Projects="@(Projects)"
+ Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"
+ BuildInParallel="%(BuildInParallel)"
+ StopOnFirstFailure="true"
+ Targets="%(BuildTarget)" />
+ <MSBuild Projects="@(Projects2)"
+ Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"
+ BuildInParallel="%(BuildInParallel)"
+ StopOnFirstFailure="true"
+ Targets="%(BuildTarget)" />
+ </Target>
+
+ <Target Name="Clean">
+ <MSBuild Projects="@(Projects2)"
+ Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"
+ BuildInParallel="%(BuildInParallel)"
+ StopOnFirstFailure="false"
+ Condition="%(CleanTarget) != ''"
+ Targets="%(CleanTarget)" />
+ <MSBuild Projects="@(Projects)"
+ Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"
+ BuildInParallel="%(BuildInParallel)"
+ StopOnFirstFailure="false"
+ Condition="%(CleanTarget) != ''"
+ Targets="%(CleanTarget)" />
+ <MSBuild Projects="@(FreezeProjects)"
+ Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"
+ BuildInParallel="%(BuildInParallel)"
+ StopOnFirstFailure="false"
+ Condition="%(CleanTarget) != ''"
+ Targets="%(CleanTarget)" />
+ </Target>
+
+ <Target Name="CleanAll">
+ <MSBuild Projects="@(Projects2)"
+ Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"
+ BuildInParallel="%(BuildInParallel)"
+ StopOnFirstFailure="false"
+ Condition="%(CleanAllTarget) != ''"
+ Targets="%(CleanAllTarget)" />
+ <MSBuild Projects="@(Projects)"
+ Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"
+ BuildInParallel="%(BuildInParallel)"
+ StopOnFirstFailure="false"
+ Condition="%(CleanAllTarget) != ''"
+ Targets="%(CleanAllTarget)" />
+ <MSBuild Projects="@(FreezeProjects)"
+ Properties="Configuration=%(Configuration);Platform=%(Platform);%(Properties)"
+ BuildInParallel="%(BuildInParallel)"
+ StopOnFirstFailure="false"
+ Condition="%(CleanTarget) != ''"
+ Targets="%(CleanTarget)" />
+ </Target>
+
+ <Target Name="Rebuild" DependsOnTargets="Clean;Build" />
+ <Target Name="RebuildAll" DependsOnTargets="CleanAll;Build" />
+</Project>
-Microsoft Visual Studio Solution File, Format Version 12.00\r
-# Visual Studio Version 16\r
-VisualStudioVersion = 16.0.30028.174\r
-MinimumVisualStudioVersion = 10.0.40219.1\r
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{553EC33E-9816-4996-A660-5D6186A0B0B3}"\r
- ProjectSection(SolutionItems) = preProject\r
- ..\Modules\getbuildinfo.c = ..\Modules\getbuildinfo.c\r
- readme.txt = readme.txt\r
- EndProjectSection\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "python", "python.vcxproj", "{B11D750F-CD1F-4A96-85CE-E69A5C5259F9}"\r
- ProjectSection(ProjectDependencies) = postProject\r
- {0E9791DB-593A-465F-98BC-681011311618} = {0E9791DB-593A-465F-98BC-681011311618}\r
- EndProjectSection\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pythoncore", "pythoncore.vcxproj", "{CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}"\r
- ProjectSection(ProjectDependencies) = postProject\r
- {19C0C13F-47CA-4432-AFF3-799A296A4DDC} = {19C0C13F-47CA-4432-AFF3-799A296A4DDC}\r
- EndProjectSection\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pythonw", "pythonw.vcxproj", "{F4229CC3-873C-49AE-9729-DD308ED4CD4A}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "winsound", "winsound.vcxproj", "{28B5D777-DDF2-4B6B-B34F-31D938813856}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_decimal", "_decimal.vcxproj", "{0E9791DB-593A-465F-98BC-681011311617}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_ctypes", "_ctypes.vcxproj", "{0E9791DB-593A-465F-98BC-681011311618}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_ctypes_test", "_ctypes_test.vcxproj", "{9EC7190A-249F-4180-A900-548FDCF3055F}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_elementtree", "_elementtree.vcxproj", "{17E1E049-C309-4D79-843F-AE483C264AEA}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_msi", "_msi.vcxproj", "{31FFC478-7B4A-43E8-9954-8D03E2187E9C}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_socket", "_socket.vcxproj", "{86937F53-C189-40EF-8CE8-8759D8E7D480}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_sqlite3", "_sqlite3.vcxproj", "{13CECB97-4119-4316-9D42-8534019A5A44}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_ssl", "_ssl.vcxproj", "{C6E20F84-3247-4AD6-B051-B073268F73BA}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_testcapi", "_testcapi.vcxproj", "{6901D91C-6E48-4BB7-9FEC-700C8131DF1D}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_testinternalcapi", "_testinternalcapi.vcxproj", "{900342D7-516A-4469-B1AD-59A66E49A25F}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_testimportmultiple", "_testimportmultiple.vcxproj", "{36D0C52C-DF4E-45D0-8BC7-E294C3ABC781}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_tkinter", "_tkinter.vcxproj", "{4946ECAC-2E69-4BF8-A90A-F5136F5094DF}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_bz2", "_bz2.vcxproj", "{73FCD2BD-F133-46B7-8EC1-144CD82A59D5}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "select", "select.vcxproj", "{18CAE28C-B454-46C1-87A0-493D91D97F03}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_lzma", "_lzma.vcxproj", "{F9D71780-F393-11E0-BE50-0800200C9A66}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "unicodedata", "unicodedata.vcxproj", "{ECC7CEAC-A5E5-458E-BB9E-2413CC847881}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pyexpat", "pyexpat.vcxproj", "{D06B6426-4762-44CC-8BAD-D79052507F2F}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_hashlib", "_hashlib.vcxproj", "{447F05A8-F581-4CAC-A466-5AC7936E207E}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "sqlite3", "sqlite3.vcxproj", "{A1A295E5-463C-437F-81CA-1F32367685DA}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_multiprocessing", "_multiprocessing.vcxproj", "{9E48B300-37D1-11DD-8C41-005056C00008}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "python3dll", "python3dll.vcxproj", "{885D4898-D08D-4091-9C40-C700CFE3FC5A}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "xxlimited", "xxlimited.vcxproj", "{F749B822-B489-4CA5-A3AD-CE078F5F338A}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_testbuffer", "_testbuffer.vcxproj", "{A2697BD3-28C1-4AEC-9106-8B748639FD16}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pylauncher", "pylauncher.vcxproj", "{7B2727B5-5A3F-40EE-A866-43A13CD31446}"\r
- ProjectSection(ProjectDependencies) = postProject\r
- {0F6EE4A4-C75F-4578-B4B3-2D64F4B9B782} = {0F6EE4A4-C75F-4578-B4B3-2D64F4B9B782}\r
- EndProjectSection\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pywlauncher", "pywlauncher.vcxproj", "{1D4B18D3-7C12-4ECB-9179-8531FF876CE6}"\r
- ProjectSection(ProjectDependencies) = postProject\r
- {7B2727B5-5A3F-40EE-A866-43A13CD31446} = {7B2727B5-5A3F-40EE-A866-43A13CD31446}\r
- EndProjectSection\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_freeze_module", "_freeze_module.vcxproj", "{19C0C13F-47CA-4432-AFF3-799A296A4DDC}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_overlapped", "_overlapped.vcxproj", "{EB6E69DD-04BF-4543-9B92-49FAABCEAC2E}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_testembed", "_testembed.vcxproj", "{6DAC66D9-E703-4624-BE03-49112AB5AA62}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_testmultiphase", "_testmultiphase.vcxproj", "{16BFE6F0-22EF-40B5-B831-7E937119EF10}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pyshellext", "pyshellext.vcxproj", "{0F6EE4A4-C75F-4578-B4B3-2D64F4B9B782}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_testconsole", "_testconsole.vcxproj", "{B244E787-C445-441C-BDF4-5A4F1A3A1E51}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_asyncio", "_asyncio.vcxproj", "{384C224A-7474-476E-A01B-750EA7DE918C}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_zoneinfo", "_zoneinfo.vcxproj", "{FCBE1EF2-E0F0-40B1-88B5-00A35D378742}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_queue", "_queue.vcxproj", "{78D80A15-BD8C-44E2-B49E-1F05B0A0A687}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "liblzma", "liblzma.vcxproj", "{12728250-16EC-4DC6-94D7-E21DD88947F8}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "python_uwp", "python_uwp.vcxproj", "{9DE9E23D-C8D4-4817-92A9-920A8B1FE5FF}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "venvlauncher", "venvlauncher.vcxproj", "{494BAC80-A60C-43A9-99E7-ACB691CE2C4D}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "venvwlauncher", "venvwlauncher.vcxproj", "{FDB84CBB-2FB6-47C8-A2D6-091E0833239D}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pythonw_uwp", "pythonw_uwp.vcxproj", "{AB603547-1E2A-45B3-9E09-B04596006393}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_uuid", "_uuid.vcxproj", "{CB435430-EBB1-478B-8F4E-C256F6838F55}"\r
-EndProject\r
-Global\r
- GlobalSection(SolutionConfigurationPlatforms) = preSolution\r
- Debug|ARM = Debug|ARM\r
- Debug|ARM64 = Debug|ARM64\r
- Debug|Win32 = Debug|Win32\r
- Debug|x64 = Debug|x64\r
- PGInstrument|ARM = PGInstrument|ARM\r
- PGInstrument|ARM64 = PGInstrument|ARM64\r
- PGInstrument|Win32 = PGInstrument|Win32\r
- PGInstrument|x64 = PGInstrument|x64\r
- PGUpdate|ARM = PGUpdate|ARM\r
- PGUpdate|ARM64 = PGUpdate|ARM64\r
- PGUpdate|Win32 = PGUpdate|Win32\r
- PGUpdate|x64 = PGUpdate|x64\r
- Release|ARM = Release|ARM\r
- Release|ARM64 = Release|ARM64\r
- Release|Win32 = Release|Win32\r
- Release|x64 = Release|x64\r
- EndGlobalSection\r
- GlobalSection(ProjectConfigurationPlatforms) = postSolution\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Debug|ARM.ActiveCfg = Debug|ARM\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Debug|ARM.Build.0 = Debug|ARM\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Debug|ARM64.ActiveCfg = Debug|ARM64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Debug|ARM64.Build.0 = Debug|ARM64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Debug|Win32.Build.0 = Debug|Win32\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Debug|x64.ActiveCfg = Debug|x64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Debug|x64.Build.0 = Debug|x64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGInstrument|ARM.ActiveCfg = PGInstrument|ARM\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGInstrument|ARM.Build.0 = PGInstrument|ARM\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGInstrument|ARM64.ActiveCfg = PGInstrument|ARM64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGInstrument|ARM64.Build.0 = PGInstrument|ARM64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGInstrument|Win32.ActiveCfg = PGInstrument|Win32\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGInstrument|Win32.Build.0 = PGInstrument|Win32\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGInstrument|x64.ActiveCfg = PGInstrument|x64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGInstrument|x64.Build.0 = PGInstrument|x64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGUpdate|ARM.ActiveCfg = PGUpdate|ARM\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGUpdate|ARM.Build.0 = PGUpdate|ARM\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGUpdate|ARM64.ActiveCfg = PGUpdate|ARM64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGUpdate|ARM64.Build.0 = PGUpdate|ARM64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGUpdate|Win32.ActiveCfg = PGUpdate|Win32\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGUpdate|Win32.Build.0 = PGUpdate|Win32\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGUpdate|x64.ActiveCfg = PGUpdate|x64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.PGUpdate|x64.Build.0 = PGUpdate|x64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Release|ARM.ActiveCfg = Release|ARM\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Release|ARM.Build.0 = Release|ARM\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Release|ARM64.ActiveCfg = Release|ARM64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Release|ARM64.Build.0 = Release|ARM64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Release|Win32.ActiveCfg = Release|Win32\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Release|Win32.Build.0 = Release|Win32\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Release|x64.ActiveCfg = Release|x64\r
- {B11D750F-CD1F-4A96-85CE-E69A5C5259F9}.Release|x64.Build.0 = Release|x64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Debug|ARM.ActiveCfg = Debug|ARM\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Debug|ARM.Build.0 = Debug|ARM\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Debug|ARM64.ActiveCfg = Debug|ARM64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Debug|ARM64.Build.0 = Debug|ARM64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Debug|Win32.Build.0 = Debug|Win32\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Debug|x64.ActiveCfg = Debug|x64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Debug|x64.Build.0 = Debug|x64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGInstrument|ARM.ActiveCfg = PGInstrument|ARM\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGInstrument|ARM.Build.0 = PGInstrument|ARM\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGInstrument|ARM64.ActiveCfg = PGInstrument|ARM64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGInstrument|ARM64.Build.0 = PGInstrument|ARM64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGInstrument|Win32.ActiveCfg = PGInstrument|Win32\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGInstrument|Win32.Build.0 = PGInstrument|Win32\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGInstrument|x64.ActiveCfg = PGInstrument|x64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGInstrument|x64.Build.0 = PGInstrument|x64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGUpdate|ARM.ActiveCfg = PGUpdate|ARM\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGUpdate|ARM.Build.0 = PGUpdate|ARM\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGUpdate|ARM64.ActiveCfg = PGUpdate|ARM64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGUpdate|ARM64.Build.0 = PGUpdate|ARM64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGUpdate|Win32.ActiveCfg = PGUpdate|Win32\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGUpdate|Win32.Build.0 = PGUpdate|Win32\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGUpdate|x64.ActiveCfg = PGUpdate|x64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.PGUpdate|x64.Build.0 = PGUpdate|x64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Release|ARM.ActiveCfg = Release|ARM\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Release|ARM.Build.0 = Release|ARM\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Release|ARM64.ActiveCfg = Release|ARM64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Release|ARM64.Build.0 = Release|ARM64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Release|Win32.ActiveCfg = Release|Win32\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Release|Win32.Build.0 = Release|Win32\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Release|x64.ActiveCfg = Release|x64\r
- {CF7AC3D1-E2DF-41D2-BEA6-1E2556CDEA26}.Release|x64.Build.0 = Release|x64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Debug|ARM.ActiveCfg = Debug|ARM\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Debug|ARM.Build.0 = Debug|ARM\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Debug|ARM64.ActiveCfg = Debug|ARM64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Debug|ARM64.Build.0 = Debug|ARM64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Debug|Win32.Build.0 = Debug|Win32\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Debug|x64.ActiveCfg = Debug|x64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Debug|x64.Build.0 = Debug|x64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGInstrument|ARM.ActiveCfg = PGInstrument|ARM\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGInstrument|ARM.Build.0 = PGInstrument|ARM\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGInstrument|ARM64.ActiveCfg = PGInstrument|ARM64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGInstrument|ARM64.Build.0 = PGInstrument|ARM64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGInstrument|Win32.ActiveCfg = Release|Win32\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGInstrument|Win32.Build.0 = Release|Win32\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGInstrument|x64.ActiveCfg = Release|x64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGInstrument|x64.Build.0 = Release|x64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGUpdate|ARM.ActiveCfg = PGUpdate|ARM\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGUpdate|ARM.Build.0 = PGUpdate|ARM\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGUpdate|ARM64.ActiveCfg = PGUpdate|ARM64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGUpdate|ARM64.Build.0 = PGUpdate|ARM64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGUpdate|Win32.ActiveCfg = Release|Win32\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGUpdate|Win32.Build.0 = Release|Win32\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGUpdate|x64.ActiveCfg = Release|x64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.PGUpdate|x64.Build.0 = Release|x64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Release|ARM.ActiveCfg = Release|ARM\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Release|ARM.Build.0 = Release|ARM\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Release|ARM64.ActiveCfg = Release|ARM64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Release|ARM64.Build.0 = Release|ARM64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Release|Win32.ActiveCfg = Release|Win32\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Release|Win32.Build.0 = Release|Win32\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Release|x64.ActiveCfg = Release|x64\r
- {F4229CC3-873C-49AE-9729-DD308ED4CD4A}.Release|x64.Build.0 = Release|x64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Debug|ARM.ActiveCfg = Debug|ARM\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Debug|ARM.Build.0 = Debug|ARM\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Debug|ARM64.ActiveCfg = Debug|ARM64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Debug|ARM64.Build.0 = Debug|ARM64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Debug|Win32.Build.0 = Debug|Win32\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Debug|x64.ActiveCfg = Debug|x64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Debug|x64.Build.0 = Debug|x64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGInstrument|ARM.ActiveCfg = PGInstrument|ARM\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGInstrument|ARM.Build.0 = PGInstrument|ARM\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGInstrument|ARM64.ActiveCfg = PGInstrument|ARM64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGInstrument|ARM64.Build.0 = PGInstrument|ARM64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGInstrument|Win32.ActiveCfg = PGInstrument|Win32\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGInstrument|Win32.Build.0 = PGInstrument|Win32\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGInstrument|x64.ActiveCfg = PGInstrument|x64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGInstrument|x64.Build.0 = PGInstrument|x64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGUpdate|ARM.ActiveCfg = PGUpdate|ARM\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGUpdate|ARM.Build.0 = PGUpdate|ARM\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGUpdate|ARM64.ActiveCfg = PGUpdate|ARM64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGUpdate|ARM64.Build.0 = PGUpdate|ARM64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGUpdate|Win32.ActiveCfg = PGUpdate|Win32\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGUpdate|Win32.Build.0 = PGUpdate|Win32\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGUpdate|x64.ActiveCfg = PGUpdate|x64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.PGUpdate|x64.Build.0 = PGUpdate|x64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Release|ARM.ActiveCfg = Release|ARM\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Release|ARM.Build.0 = Release|ARM\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Release|ARM64.ActiveCfg = Release|ARM64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Release|ARM64.Build.0 = Release|ARM64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Release|Win32.ActiveCfg = Release|Win32\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Release|Win32.Build.0 = Release|Win32\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Release|x64.ActiveCfg = Release|x64\r
- {28B5D777-DDF2-4B6B-B34F-31D938813856}.Release|x64.Build.0 = Release|x64\r
- {0E9791DB-593A-465F-98BC-681011311617}.Debug|ARM.ActiveCfg = Debug|ARM\r
- {0E9791DB-593A-465F-98BC-681011311617}.Debug|ARM.Build.0 = Debug|ARM\r
- {0E9791DB-593A-465F-98BC-681011311617}.Debug|ARM64.ActiveCfg = Debug|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311617}.Debug|ARM64.Build.0 = Debug|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311617}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {0E9791DB-593A-465F-98BC-681011311617}.Debug|Win32.Build.0 = Debug|Win32\r
- {0E9791DB-593A-465F-98BC-681011311617}.Debug|x64.ActiveCfg = Debug|x64\r
- {0E9791DB-593A-465F-98BC-681011311617}.Debug|x64.Build.0 = Debug|x64\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGInstrument|ARM.ActiveCfg = PGInstrument|ARM\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGInstrument|ARM.Build.0 = PGInstrument|ARM\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGInstrument|ARM64.ActiveCfg = PGInstrument|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGInstrument|ARM64.Build.0 = PGInstrument|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGInstrument|Win32.ActiveCfg = PGInstrument|Win32\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGInstrument|Win32.Build.0 = PGInstrument|Win32\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGInstrument|x64.ActiveCfg = PGInstrument|x64\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGInstrument|x64.Build.0 = PGInstrument|x64\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGUpdate|ARM.ActiveCfg = PGUpdate|ARM\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGUpdate|ARM.Build.0 = PGUpdate|ARM\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGUpdate|ARM64.ActiveCfg = PGUpdate|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGUpdate|ARM64.Build.0 = PGUpdate|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGUpdate|Win32.ActiveCfg = PGUpdate|Win32\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGUpdate|Win32.Build.0 = PGUpdate|Win32\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGUpdate|x64.ActiveCfg = PGUpdate|x64\r
- {0E9791DB-593A-465F-98BC-681011311617}.PGUpdate|x64.Build.0 = PGUpdate|x64\r
- {0E9791DB-593A-465F-98BC-681011311617}.Release|ARM.ActiveCfg = Release|ARM\r
- {0E9791DB-593A-465F-98BC-681011311617}.Release|ARM.Build.0 = Release|ARM\r
- {0E9791DB-593A-465F-98BC-681011311617}.Release|ARM64.ActiveCfg = Release|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311617}.Release|ARM64.Build.0 = Release|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311617}.Release|Win32.ActiveCfg = Release|Win32\r
- {0E9791DB-593A-465F-98BC-681011311617}.Release|Win32.Build.0 = Release|Win32\r
- {0E9791DB-593A-465F-98BC-681011311617}.Release|x64.ActiveCfg = Release|x64\r
- {0E9791DB-593A-465F-98BC-681011311617}.Release|x64.Build.0 = Release|x64\r
- {0E9791DB-593A-465F-98BC-681011311618}.Debug|ARM.ActiveCfg = Debug|ARM\r
- {0E9791DB-593A-465F-98BC-681011311618}.Debug|ARM.Build.0 = Debug|ARM\r
- {0E9791DB-593A-465F-98BC-681011311618}.Debug|ARM64.ActiveCfg = Debug|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311618}.Debug|ARM64.Build.0 = Debug|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311618}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {0E9791DB-593A-465F-98BC-681011311618}.Debug|Win32.Build.0 = Debug|Win32\r
- {0E9791DB-593A-465F-98BC-681011311618}.Debug|x64.ActiveCfg = Debug|x64\r
- {0E9791DB-593A-465F-98BC-681011311618}.Debug|x64.Build.0 = Debug|x64\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGInstrument|ARM.ActiveCfg = PGInstrument|ARM\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGInstrument|ARM.Build.0 = PGInstrument|ARM\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGInstrument|ARM64.ActiveCfg = PGInstrument|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGInstrument|ARM64.Build.0 = PGInstrument|ARM64\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGInstrument|Win32.ActiveCfg = PGInstrument|Win32\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGInstrument|Win32.Build.0 = PGInstrument|Win32\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGInstrument|x64.ActiveCfg = PGInstrument|x64\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGInstrument|x64.Build.0 = PGInstrument|x64\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGUpdate|ARM.ActiveCfg = PGUpdate|ARM\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGUpdate|ARM.Build.0 = PGUpdate|ARM\r
- {0E9791DB-593A-465F-98BC-681011311618}.PGUpdate|ARM64.ActiveCfg = PGUpdate|ARM64\r
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+ ProjectSection(ProjectDependencies) = postProject
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+ ProjectSection(ProjectDependencies) = postProject
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+ ProjectSection(ProjectDependencies) = postProject
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+ {FDB84CBB-2FB6-47C8-A2D6-091E0833239D}.Release|Win32.Build.0 = Release|Win32
+ {FDB84CBB-2FB6-47C8-A2D6-091E0833239D}.Release|x64.ActiveCfg = Release|x64
+ {FDB84CBB-2FB6-47C8-A2D6-091E0833239D}.Release|x64.Build.0 = Release|x64
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Debug|ARM.ActiveCfg = Debug|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Debug|ARM.Build.0 = Debug|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Debug|ARM64.ActiveCfg = Debug|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Debug|Win32.ActiveCfg = Debug|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Debug|Win32.Build.0 = Debug|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Debug|x64.ActiveCfg = Debug|x64
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Debug|x64.Build.0 = Debug|x64
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGInstrument|ARM.ActiveCfg = PGInstrument|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGInstrument|ARM64.ActiveCfg = PGInstrument|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGInstrument|Win32.ActiveCfg = PGInstrument|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGInstrument|Win32.Build.0 = PGInstrument|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGInstrument|x64.ActiveCfg = PGInstrument|x64
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGInstrument|x64.Build.0 = PGInstrument|x64
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGUpdate|ARM.ActiveCfg = PGUpdate|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGUpdate|ARM64.ActiveCfg = PGUpdate|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGUpdate|Win32.ActiveCfg = PGUpdate|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGUpdate|Win32.Build.0 = PGUpdate|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGUpdate|x64.ActiveCfg = PGUpdate|x64
+ {AB603547-1E2A-45B3-9E09-B04596006393}.PGUpdate|x64.Build.0 = PGUpdate|x64
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Release|ARM.ActiveCfg = Release|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Release|ARM64.ActiveCfg = Release|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Release|Win32.ActiveCfg = Release|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Release|Win32.Build.0 = Release|Win32
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Release|x64.ActiveCfg = Release|x64
+ {AB603547-1E2A-45B3-9E09-B04596006393}.Release|x64.Build.0 = Release|x64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Debug|ARM.ActiveCfg = Debug|ARM
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Debug|ARM.Build.0 = Debug|ARM
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Debug|ARM64.ActiveCfg = Debug|ARM64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Debug|ARM64.Build.0 = Debug|ARM64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Debug|Win32.ActiveCfg = Debug|Win32
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Debug|Win32.Build.0 = Debug|Win32
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Debug|x64.ActiveCfg = Debug|x64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Debug|x64.Build.0 = Debug|x64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGInstrument|ARM.ActiveCfg = PGInstrument|ARM
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGInstrument|ARM.Build.0 = PGInstrument|ARM
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGInstrument|ARM64.ActiveCfg = PGInstrument|ARM64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGInstrument|ARM64.Build.0 = PGInstrument|ARM64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGInstrument|Win32.ActiveCfg = PGInstrument|Win32
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGInstrument|Win32.Build.0 = PGInstrument|Win32
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGInstrument|x64.ActiveCfg = PGInstrument|x64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGInstrument|x64.Build.0 = PGInstrument|x64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGUpdate|ARM.ActiveCfg = PGUpdate|ARM
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGUpdate|ARM.Build.0 = PGUpdate|ARM
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGUpdate|ARM64.ActiveCfg = PGUpdate|ARM64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGUpdate|ARM64.Build.0 = PGUpdate|ARM64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGUpdate|Win32.ActiveCfg = PGUpdate|Win32
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGUpdate|Win32.Build.0 = PGUpdate|Win32
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGUpdate|x64.ActiveCfg = PGUpdate|x64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.PGUpdate|x64.Build.0 = PGUpdate|x64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Release|ARM.ActiveCfg = Release|ARM
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Release|ARM.Build.0 = Release|ARM
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Release|ARM64.ActiveCfg = Release|ARM64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Release|ARM64.Build.0 = Release|ARM64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Release|Win32.ActiveCfg = Release|Win32
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Release|Win32.Build.0 = Release|Win32
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Release|x64.ActiveCfg = Release|x64
+ {CB435430-EBB1-478B-8F4E-C256F6838F55}.Release|x64.Build.0 = Release|x64
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {5C33FFD3-C8DC-4A54-B842-8BA9846BDFFE}
+ EndGlobalSection
+EndGlobal
-@echo off\r
-goto :Run\r
-\r
-:Usage\r
-echo.\r
-echo Before running prepare_libffi.bat \r
-echo LIBFFI_SOURCE environment variable must be set to the location of\r
-echo of python-source-deps clone of libffi branch\r
-echo VCVARSALL must be set to location of vcvarsall.bat\r
-echo cygwin must be installed (see below)\r
-echo SH environment variable must be set to the location of sh.exe\r
-echo.\r
-echo Tested with cygwin-x86 from https://www.cygwin.com/install.html\r
-echo Select http://mirrors.kernel.org as the download site\r
-echo Include the following cygwin packages in cygwin configuration:\r
-echo make, autoconf, automake, libtool, dejagnu\r
-echo.\r
-echo NOTE: dejagnu is only required for running tests.\r
-echo set LIBFFI_TEST=1 to run tests (optional)\r
-echo.\r
-echo Based on https://github.com/libffi/libffi/blob/master/.appveyor.yml\r
-echo.\r
-echo.\r
-echo.Available flags:\r
-echo. -x64 enable x64 build\r
-echo. -x86 enable x86 build\r
-echo. -arm32 enable arm32 build\r
-echo. -arm64 enable arm64 build\r
-echo. -? this help\r
-echo. --install-cygwin install cygwin to c:\cygwin\r
-exit /b 127\r
-\r
-:Run\r
-\r
-set BUILD_X64=\r
-set BUILD_X86=\r
-set BUILD_ARM32=\r
-set BUILD_ARM64=\r
-set BUILD_PDB=\r
-set BUILD_NOOPT=\r
-set COPY_LICENSE=\r
-set INSTALL_CYGWIN=\r
-\r
-:CheckOpts\r
-if "%1"=="" goto :CheckOptsDone\r
-if /I "%1"=="-x64" (set BUILD_X64=1) & shift & goto :CheckOpts\r
-if /I "%1"=="-x86" (set BUILD_X86=1) & shift & goto :CheckOpts\r
-if /I "%1"=="-win32" (set BUILD_X86=1) & shift & goto :CheckOpts\r
-if /I "%1"=="-arm32" (set BUILD_ARM32=1) & shift & goto :CheckOpts\r
-if /I "%1"=="-arm64" (set BUILD_ARM64=1) & shift & goto :CheckOpts\r
-if /I "%1"=="-pdb" (set BUILD_PDB=-g) & shift & goto :CheckOpts\r
-if /I "%1"=="-noopt" (set BUILD_NOOPT=CFLAGS='-Od -warn all') & shift & goto :CheckOpts\r
-if /I "%1"=="-license" (set COPY_LICENSE=1) & shift & goto :CheckOpts\r
-if /I "%1"=="-?" goto :Usage\r
-if /I "%1"=="--install-cygwin" (set INSTALL_CYGWIN=1) & shift & goto :CheckOpts\r
-goto :Usage\r
-\r
-:CheckOptsDone\r
-\r
-if NOT DEFINED BUILD_X64 if NOT DEFINED BUILD_X86 if NOT DEFINED BUILD_ARM32 if NOT DEFINED BUILD_ARM64 (\r
- set BUILD_X64=1\r
- set BUILD_X86=1\r
- set BUILD_ARM32=1\r
- set BUILD_ARM64=1\r
- set COPY_LICENSE=1\r
-)\r
-\r
-if "%INSTALL_CYGWIN%"=="1" call :InstallCygwin\r
-\r
-setlocal\r
-if NOT DEFINED SH if exist c:\cygwin\bin\sh.exe set SH=c:\cygwin\bin\sh.exe\r
-\r
-if NOT DEFINED VCVARSALL (\r
- for /F "tokens=*" %%i in ('"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -property installationPath -latest -prerelease -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64') DO @(set VCVARSALL="%%i\VC\Auxiliary\Build\vcvarsall.bat")\r
-)\r
-if ^%VCVARSALL:~0,1% NEQ ^" SET VCVARSALL="%VCVARSALL%"\r
-\r
-if NOT DEFINED LIBFFI_SOURCE echo.&&echo ERROR LIBFFI_SOURCE environment variable not set && goto :Usage\r
-if NOT DEFINED SH echo ERROR SH environment variable not set && goto :Usage\r
-\r
-if not exist %SH% echo ERROR %SH% does not exist && goto :Usage\r
-if not exist %LIBFFI_SOURCE% echo ERROR %LIBFFI_SOURCE% does not exist && goto :Usage\r
-\r
-set OLDPWD=%LIBFFI_SOURCE%\r
-pushd %LIBFFI_SOURCE%\r
-\r
-%SH% --login -lc "cygcheck -dc cygwin"\r
-set GET_MSVCC=%SH% -lc "cd $OLDPWD; export MSVCC=`/usr/bin/find $PWD -name msvcc.sh`; echo ${MSVCC};"\r
-FOR /F "usebackq delims==" %%i IN (`%GET_MSVCC%`) do @set MSVCC=%%i\r
-\r
-echo.\r
-echo VCVARSALL : %VCVARSALL%\r
-echo SH : %SH%\r
-echo LIBFFI_SOURCE: %LIBFFI_SOURCE% \r
-echo MSVCC : %MSVCC%\r
-echo.\r
-\r
-if not exist Makefile.in (\r
- %SH% -lc "(cd $LIBFFI_SOURCE; ./autogen.sh;)"\r
- if errorlevel 1 exit /B 1\r
-)\r
-\r
-if "%BUILD_X64%"=="1" call :BuildOne x64 x86_64-w64-cygwin x86_64-w64-cygwin\r
-if errorlevel 1 exit /B %ERRORLEVEL%\r
-if "%BUILD_X86%"=="1" call :BuildOne x86 i686-pc-cygwin i686-pc-cygwin\r
-if errorlevel 1 exit /B %ERRORLEVEL%\r
-if "%BUILD_ARM32%"=="1" call :BuildOne x86_arm i686-pc-cygwin arm-w32-cygwin\r
-if errorlevel 1 exit /B %ERRORLEVEL%\r
-if "%BUILD_ARM64%"=="1" call :BuildOne x86_arm64 i686-pc-cygwin aarch64-w64-cygwin\r
-if errorlevel 1 exit /B %ERRORLEVEL%\r
-if "%COPY_LICENSE%"=="1" copy /y "%LIBFFI_SOURCE%\LICENSE" "%LIBFFI_OUT%\LICENSE"\r
-\r
-popd\r
-endlocal\r
-exit /b 0\r
-REM all done\r
-\r
-\r
-REM this subroutine is called once for each architecture\r
-:BuildOne\r
-\r
-setlocal\r
-\r
-REM Initialize variables\r
-set VCVARS_PLATFORM=%1\r
-set BUILD=%2\r
-set HOST=%3\r
-set ASSEMBLER=\r
-set SRC_ARCHITECTURE=x86\r
-\r
-if NOT DEFINED VCVARS_PLATFORM echo ERROR bad VCVARS_PLATFORM&&exit /b 123\r
-\r
-if /I "%VCVARS_PLATFORM%" EQU "x64" (\r
- set ARCH=amd64\r
- set ARTIFACTS=%LIBFFI_SOURCE%\x86_64-w64-cygwin\r
- set ASSEMBLER=-m64\r
- set SRC_ARCHITECTURE=x86\r
-)\r
-if /I "%VCVARS_PLATFORM%" EQU "x86" (\r
- set ARCH=win32\r
- set ARTIFACTS=%LIBFFI_SOURCE%\i686-pc-cygwin\r
- set ASSEMBLER=\r
- set SRC_ARCHITECTURE=x86\r
-)\r
-if /I "%VCVARS_PLATFORM%" EQU "x86_arm" (\r
- set ARCH=arm32\r
- set ARTIFACTS=%LIBFFI_SOURCE%\arm-w32-cygwin\r
- set ASSEMBLER=-marm\r
- set SRC_ARCHITECTURE=ARM\r
-)\r
-if /I "%VCVARS_PLATFORM%" EQU "x86_arm64" (\r
- set ARCH=arm64\r
- set ARTIFACTS=%LIBFFI_SOURCE%\aarch64-w64-cygwin\r
- set ASSEMBLER=-marm64\r
- set SRC_ARCHITECTURE=aarch64\r
-)\r
-\r
-if NOT DEFINED LIBFFI_OUT set LIBFFI_OUT=%~dp0\..\externals\libffi\r
-set _LIBFFI_OUT=%LIBFFI_OUT%\%ARCH%\r
-\r
-echo get VS build environment\r
-call %VCVARSALL% %VCVARS_PLATFORM%\r
-\r
-echo clean %_LIBFFI_OUT%\r
-if exist %_LIBFFI_OUT% (rd %_LIBFFI_OUT% /s/q)\r
-\r
-echo ================================================================\r
-echo Configure the build to generate fficonfig.h and ffi.h\r
-echo ================================================================\r
-%SH% -lc "(cd $OLDPWD; ./configure CC='%MSVCC% %ASSEMBLER% %BUILD_PDB%' CXX='%MSVCC% %ASSEMBLER% %BUILD_PDB%' LD='link' CPP='cl -nologo -EP' CXXCPP='cl -nologo -EP' CPPFLAGS='-DFFI_BUILDING_DLL' %BUILD_NOOPT% NM='dumpbin -symbols' STRIP=':' --build=$BUILD --host=$HOST;)"\r
-if errorlevel 1 exit /B %ERRORLEVEL%\r
-\r
-echo ================================================================\r
-echo Building libffi\r
-echo ================================================================\r
-%SH% -lc "(cd $OLDPWD; export PATH=/usr/bin:$PATH; cp src/%SRC_ARCHITECTURE%/ffitarget.h include; make; find .;)"\r
-if errorlevel 1 exit /B %ERRORLEVEL%\r
-\r
-REM Tests are not needed to produce artifacts\r
-if "%LIBFFI_TEST%" EQU "1" (\r
- echo "Running tests..."\r
- %SH% -lc "(cd $OLDPWD; export PATH=/usr/bin:$PATH; cp `find $PWD -name 'libffi-?.dll'` $HOST/testsuite/; make check; cat `find ./ -name libffi.log`)"\r
-) else (\r
- echo "Not running tests"\r
-)\r
-\r
-\r
-echo copying files to %_LIBFFI_OUT%\r
-if not exist %_LIBFFI_OUT%\include (md %_LIBFFI_OUT%\include)\r
-copy %ARTIFACTS%\.libs\libffi-*.dll %_LIBFFI_OUT% || exit /B 1\r
-copy %ARTIFACTS%\.libs\libffi-*.lib %_LIBFFI_OUT% || exit /B 1\r
-copy %ARTIFACTS%\.libs\libffi-*.pdb %_LIBFFI_OUT%\r
-copy %ARTIFACTS%\fficonfig.h %_LIBFFI_OUT%\include || exit /B 1\r
-copy %ARTIFACTS%\include\*.h %_LIBFFI_OUT%\include || exit /B 1\r
-\r
-endlocal\r
-exit /b\r
-\r
-:InstallCygwin\r
-setlocal\r
-\r
-if NOT DEFINED CYG_ROOT (set CYG_ROOT=c:/cygwin)\r
-if NOT DEFINED CYG_CACHE (set CYG_CACHE=C:/cygwin/var/cache/setup)\r
-if NOT DEFINED CYG_MIRROR (set CYG_MIRROR=http://mirrors.kernel.org/sourceware/cygwin/)\r
-\r
-powershell -c "md $env:CYG_ROOT -ErrorAction SilentlyContinue"\r
-powershell -c "$setup = $env:CYG_ROOT+'/setup.exe'; if (!(Test-Path $setup)){invoke-webrequest https://cygwin.com/setup-x86.exe -outfile $setup}\r
-%CYG_ROOT%/setup.exe -qnNdO -R "%CYG_ROOT%" -s "%CYG_MIRROR%" -l "%CYG_CACHE%" -P make -P autoconf -P automake -P libtool -P dejagnu\r
-\r
-endlocal\r
-exit /b\r
-\r
+@echo off
+goto :Run
+
+:Usage
+echo.
+echo Before running prepare_libffi.bat
+echo LIBFFI_SOURCE environment variable must be set to the location of
+echo of python-source-deps clone of libffi branch
+echo VCVARSALL must be set to location of vcvarsall.bat
+echo cygwin must be installed (see below)
+echo SH environment variable must be set to the location of sh.exe
+echo.
+echo Tested with cygwin-x86 from https://www.cygwin.com/install.html
+echo Select http://mirrors.kernel.org as the download site
+echo Include the following cygwin packages in cygwin configuration:
+echo make, autoconf, automake, libtool, dejagnu
+echo.
+echo NOTE: dejagnu is only required for running tests.
+echo set LIBFFI_TEST=1 to run tests (optional)
+echo.
+echo Based on https://github.com/libffi/libffi/blob/master/.appveyor.yml
+echo.
+echo.
+echo.Available flags:
+echo. -x64 enable x64 build
+echo. -x86 enable x86 build
+echo. -arm32 enable arm32 build
+echo. -arm64 enable arm64 build
+echo. -? this help
+echo. --install-cygwin install cygwin to c:\cygwin
+exit /b 127
+
+:Run
+
+set BUILD_X64=
+set BUILD_X86=
+set BUILD_ARM32=
+set BUILD_ARM64=
+set BUILD_PDB=
+set BUILD_NOOPT=
+set COPY_LICENSE=
+set INSTALL_CYGWIN=
+
+:CheckOpts
+if "%1"=="" goto :CheckOptsDone
+if /I "%1"=="-x64" (set BUILD_X64=1) & shift & goto :CheckOpts
+if /I "%1"=="-x86" (set BUILD_X86=1) & shift & goto :CheckOpts
+if /I "%1"=="-win32" (set BUILD_X86=1) & shift & goto :CheckOpts
+if /I "%1"=="-arm32" (set BUILD_ARM32=1) & shift & goto :CheckOpts
+if /I "%1"=="-arm64" (set BUILD_ARM64=1) & shift & goto :CheckOpts
+if /I "%1"=="-pdb" (set BUILD_PDB=-g) & shift & goto :CheckOpts
+if /I "%1"=="-noopt" (set BUILD_NOOPT=CFLAGS='-Od -warn all') & shift & goto :CheckOpts
+if /I "%1"=="-license" (set COPY_LICENSE=1) & shift & goto :CheckOpts
+if /I "%1"=="-?" goto :Usage
+if /I "%1"=="--install-cygwin" (set INSTALL_CYGWIN=1) & shift & goto :CheckOpts
+goto :Usage
+
+:CheckOptsDone
+
+if NOT DEFINED BUILD_X64 if NOT DEFINED BUILD_X86 if NOT DEFINED BUILD_ARM32 if NOT DEFINED BUILD_ARM64 (
+ set BUILD_X64=1
+ set BUILD_X86=1
+ set BUILD_ARM32=1
+ set BUILD_ARM64=1
+ set COPY_LICENSE=1
+)
+
+if "%INSTALL_CYGWIN%"=="1" call :InstallCygwin
+
+setlocal
+if NOT DEFINED SH if exist c:\cygwin\bin\sh.exe set SH=c:\cygwin\bin\sh.exe
+
+if NOT DEFINED VCVARSALL (
+ for /F "tokens=*" %%i in ('"%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe" -property installationPath -latest -prerelease -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64') DO @(set VCVARSALL="%%i\VC\Auxiliary\Build\vcvarsall.bat")
+)
+if ^%VCVARSALL:~0,1% NEQ ^" SET VCVARSALL="%VCVARSALL%"
+
+if NOT DEFINED LIBFFI_SOURCE echo.&&echo ERROR LIBFFI_SOURCE environment variable not set && goto :Usage
+if NOT DEFINED SH echo ERROR SH environment variable not set && goto :Usage
+
+if not exist %SH% echo ERROR %SH% does not exist && goto :Usage
+if not exist %LIBFFI_SOURCE% echo ERROR %LIBFFI_SOURCE% does not exist && goto :Usage
+
+set OLDPWD=%LIBFFI_SOURCE%
+pushd %LIBFFI_SOURCE%
+
+%SH% --login -lc "cygcheck -dc cygwin"
+set GET_MSVCC=%SH% -lc "cd $OLDPWD; export MSVCC=`/usr/bin/find $PWD -name msvcc.sh`; echo ${MSVCC};"
+FOR /F "usebackq delims==" %%i IN (`%GET_MSVCC%`) do @set MSVCC=%%i
+
+echo.
+echo VCVARSALL : %VCVARSALL%
+echo SH : %SH%
+echo LIBFFI_SOURCE: %LIBFFI_SOURCE%
+echo MSVCC : %MSVCC%
+echo.
+
+if not exist Makefile.in (
+ %SH% -lc "(cd $LIBFFI_SOURCE; ./autogen.sh;)"
+ if errorlevel 1 exit /B 1
+)
+
+if "%BUILD_X64%"=="1" call :BuildOne x64 x86_64-w64-cygwin x86_64-w64-cygwin
+if errorlevel 1 exit /B %ERRORLEVEL%
+if "%BUILD_X86%"=="1" call :BuildOne x86 i686-pc-cygwin i686-pc-cygwin
+if errorlevel 1 exit /B %ERRORLEVEL%
+if "%BUILD_ARM32%"=="1" call :BuildOne x86_arm i686-pc-cygwin arm-w32-cygwin
+if errorlevel 1 exit /B %ERRORLEVEL%
+if "%BUILD_ARM64%"=="1" call :BuildOne x86_arm64 i686-pc-cygwin aarch64-w64-cygwin
+if errorlevel 1 exit /B %ERRORLEVEL%
+if "%COPY_LICENSE%"=="1" copy /y "%LIBFFI_SOURCE%\LICENSE" "%LIBFFI_OUT%\LICENSE"
+
+popd
+endlocal
+exit /b 0
+REM all done
+
+
+REM this subroutine is called once for each architecture
+:BuildOne
+
+setlocal
+
+REM Initialize variables
+set VCVARS_PLATFORM=%1
+set BUILD=%2
+set HOST=%3
+set ASSEMBLER=
+set SRC_ARCHITECTURE=x86
+
+if NOT DEFINED VCVARS_PLATFORM echo ERROR bad VCVARS_PLATFORM&&exit /b 123
+
+if /I "%VCVARS_PLATFORM%" EQU "x64" (
+ set ARCH=amd64
+ set ARTIFACTS=%LIBFFI_SOURCE%\x86_64-w64-cygwin
+ set ASSEMBLER=-m64
+ set SRC_ARCHITECTURE=x86
+)
+if /I "%VCVARS_PLATFORM%" EQU "x86" (
+ set ARCH=win32
+ set ARTIFACTS=%LIBFFI_SOURCE%\i686-pc-cygwin
+ set ASSEMBLER=
+ set SRC_ARCHITECTURE=x86
+)
+if /I "%VCVARS_PLATFORM%" EQU "x86_arm" (
+ set ARCH=arm32
+ set ARTIFACTS=%LIBFFI_SOURCE%\arm-w32-cygwin
+ set ASSEMBLER=-marm
+ set SRC_ARCHITECTURE=ARM
+)
+if /I "%VCVARS_PLATFORM%" EQU "x86_arm64" (
+ set ARCH=arm64
+ set ARTIFACTS=%LIBFFI_SOURCE%\aarch64-w64-cygwin
+ set ASSEMBLER=-marm64
+ set SRC_ARCHITECTURE=aarch64
+)
+
+if NOT DEFINED LIBFFI_OUT set LIBFFI_OUT=%~dp0\..\externals\libffi
+set _LIBFFI_OUT=%LIBFFI_OUT%\%ARCH%
+
+echo get VS build environment
+call %VCVARSALL% %VCVARS_PLATFORM%
+
+echo clean %_LIBFFI_OUT%
+if exist %_LIBFFI_OUT% (rd %_LIBFFI_OUT% /s/q)
+
+echo ================================================================
+echo Configure the build to generate fficonfig.h and ffi.h
+echo ================================================================
+%SH% -lc "(cd $OLDPWD; ./configure CC='%MSVCC% %ASSEMBLER% %BUILD_PDB%' CXX='%MSVCC% %ASSEMBLER% %BUILD_PDB%' LD='link' CPP='cl -nologo -EP' CXXCPP='cl -nologo -EP' CPPFLAGS='-DFFI_BUILDING_DLL' %BUILD_NOOPT% NM='dumpbin -symbols' STRIP=':' --build=$BUILD --host=$HOST;)"
+if errorlevel 1 exit /B %ERRORLEVEL%
+
+echo ================================================================
+echo Building libffi
+echo ================================================================
+%SH% -lc "(cd $OLDPWD; export PATH=/usr/bin:$PATH; cp src/%SRC_ARCHITECTURE%/ffitarget.h include; make; find .;)"
+if errorlevel 1 exit /B %ERRORLEVEL%
+
+REM Tests are not needed to produce artifacts
+if "%LIBFFI_TEST%" EQU "1" (
+ echo "Running tests..."
+ %SH% -lc "(cd $OLDPWD; export PATH=/usr/bin:$PATH; cp `find $PWD -name 'libffi-?.dll'` $HOST/testsuite/; make check; cat `find ./ -name libffi.log`)"
+) else (
+ echo "Not running tests"
+)
+
+
+echo copying files to %_LIBFFI_OUT%
+if not exist %_LIBFFI_OUT%\include (md %_LIBFFI_OUT%\include)
+copy %ARTIFACTS%\.libs\libffi-*.dll %_LIBFFI_OUT% || exit /B 1
+copy %ARTIFACTS%\.libs\libffi-*.lib %_LIBFFI_OUT% || exit /B 1
+copy %ARTIFACTS%\.libs\libffi-*.pdb %_LIBFFI_OUT%
+copy %ARTIFACTS%\fficonfig.h %_LIBFFI_OUT%\include || exit /B 1
+copy %ARTIFACTS%\include\*.h %_LIBFFI_OUT%\include || exit /B 1
+
+endlocal
+exit /b
+
+:InstallCygwin
+setlocal
+
+if NOT DEFINED CYG_ROOT (set CYG_ROOT=c:/cygwin)
+if NOT DEFINED CYG_CACHE (set CYG_CACHE=C:/cygwin/var/cache/setup)
+if NOT DEFINED CYG_MIRROR (set CYG_MIRROR=http://mirrors.kernel.org/sourceware/cygwin/)
+
+powershell -c "md $env:CYG_ROOT -ErrorAction SilentlyContinue"
+powershell -c "$setup = $env:CYG_ROOT+'/setup.exe'; if (!(Test-Path $setup)){invoke-webrequest https://cygwin.com/setup-x86.exe -outfile $setup}
+%CYG_ROOT%/setup.exe -qnNdO -R "%CYG_ROOT%" -s "%CYG_MIRROR%" -l "%CYG_CACHE%" -P make -P autoconf -P automake -P libtool -P dejagnu
+
+endlocal
+exit /b
+
-@echo off\r
-rem Downloads and build sources for libraries we depend upon\r
-\r
-goto Run\r
-:Usage\r
-echo.%~nx0 [flags and arguments]\r
-echo.\r
-echo.Download and build OpenSSL. This should only be performed in order to\r
-echo.update the binaries kept online - in most cases, the files downloaded\r
-echo.by the get_externals.bat script are sufficient for building CPython.\r
-echo.\r
-echo.Available flags:\r
-echo. -h Display this help message\r
-echo.\r
-echo.Available arguments:\r
-echo. --certificate (-c) The signing certificate to use for binaries.\r
-echo. --organization The github organization to obtain sources from.\r
-echo.\r
-exit /b 127\r
-\r
-:Run\r
-setlocal\r
-if "%PCBUILD%"=="" (set PCBUILD=%~dp0)\r
-if "%EXTERNALS_DIR%"=="" (set EXTERNALS_DIR=%PCBUILD%\..\externals)\r
-\r
-set ORG_SETTING=\r
-\r
-:CheckOpts\r
-if "%~1"=="-h" shift & goto Usage\r
-if "%~1"=="--certificate" (set SigningCertificate=%~2) && shift && shift & goto CheckOpts\r
-if "%~1"=="-c" (set SigningCertificate=%~2) && shift && shift & goto CheckOpts\r
-if "%~1"=="--organization" (set ORG_SETTING=--organization "%~2") && shift && shift && goto CheckOpts\r
-\r
-if "%~1"=="" goto Build\r
-echo Unrecognized option: %1\r
-goto Usage\r
-\r
-:Build\r
-call "%PCBUILD%\find_msbuild.bat" %MSBUILD%\r
-if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)\r
-\r
-call "%PCBUILD%\find_python.bat" "%PYTHON%"\r
-if ERRORLEVEL 1 (echo Cannot locate python.exe on PATH or as PYTHON variable & exit /b 3)\r
-\r
-call "%PCBUILD%\get_externals.bat" --openssl-src --no-openssl %ORG_SETTING%\r
-\r
-if "%PERL%" == "" where perl > "%TEMP%\perl.loc" 2> nul && set /P PERL= <"%TEMP%\perl.loc" & del "%TEMP%\perl.loc"\r
-if "%PERL%" == "" (echo Cannot locate perl.exe on PATH or as PERL variable & exit /b 4)\r
-\r
-%MSBUILD% "%PCBUILD%\openssl.vcxproj" /p:Configuration=Release /p:Platform=Win32\r
-if errorlevel 1 exit /b\r
-%MSBUILD% "%PCBUILD%\openssl.vcxproj" /p:Configuration=Release /p:Platform=x64\r
-if errorlevel 1 exit /b\r
-%MSBUILD% "%PCBUILD%\openssl.vcxproj" /p:Configuration=Release /p:Platform=ARM\r
-if errorlevel 1 exit /b\r
-%MSBUILD% "%PCBUILD%\openssl.vcxproj" /p:Configuration=Release /p:Platform=ARM64\r
-if errorlevel 1 exit /b\r
-\r
+@echo off
+rem Downloads and build sources for libraries we depend upon
+
+goto Run
+:Usage
+echo.%~nx0 [flags and arguments]
+echo.
+echo.Download and build OpenSSL. This should only be performed in order to
+echo.update the binaries kept online - in most cases, the files downloaded
+echo.by the get_externals.bat script are sufficient for building CPython.
+echo.
+echo.Available flags:
+echo. -h Display this help message
+echo.
+echo.Available arguments:
+echo. --certificate (-c) The signing certificate to use for binaries.
+echo. --organization The github organization to obtain sources from.
+echo.
+exit /b 127
+
+:Run
+setlocal
+if "%PCBUILD%"=="" (set PCBUILD=%~dp0)
+if "%EXTERNALS_DIR%"=="" (set EXTERNALS_DIR=%PCBUILD%\..\externals)
+
+set ORG_SETTING=
+
+:CheckOpts
+if "%~1"=="-h" shift & goto Usage
+if "%~1"=="--certificate" (set SigningCertificate=%~2) && shift && shift & goto CheckOpts
+if "%~1"=="-c" (set SigningCertificate=%~2) && shift && shift & goto CheckOpts
+if "%~1"=="--organization" (set ORG_SETTING=--organization "%~2") && shift && shift && goto CheckOpts
+
+if "%~1"=="" goto Build
+echo Unrecognized option: %1
+goto Usage
+
+:Build
+call "%PCBUILD%\find_msbuild.bat" %MSBUILD%
+if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)
+
+call "%PCBUILD%\find_python.bat" "%PYTHON%"
+if ERRORLEVEL 1 (echo Cannot locate python.exe on PATH or as PYTHON variable & exit /b 3)
+
+call "%PCBUILD%\get_externals.bat" --openssl-src --no-openssl %ORG_SETTING%
+
+if "%PERL%" == "" where perl > "%TEMP%\perl.loc" 2> nul && set /P PERL= <"%TEMP%\perl.loc" & del "%TEMP%\perl.loc"
+if "%PERL%" == "" (echo Cannot locate perl.exe on PATH or as PERL variable & exit /b 4)
+
+%MSBUILD% "%PCBUILD%\openssl.vcxproj" /p:Configuration=Release /p:Platform=Win32
+if errorlevel 1 exit /b
+%MSBUILD% "%PCBUILD%\openssl.vcxproj" /p:Configuration=Release /p:Platform=x64
+if errorlevel 1 exit /b
+%MSBUILD% "%PCBUILD%\openssl.vcxproj" /p:Configuration=Release /p:Platform=ARM
+if errorlevel 1 exit /b
+%MSBUILD% "%PCBUILD%\openssl.vcxproj" /p:Configuration=Release /p:Platform=ARM64
+if errorlevel 1 exit /b
+
-@echo off\r
-rem Downloads and build sources for libraries we depend upon\r
-\r
-goto Run\r
-:Usage\r
-echo.%~nx0 [flags and arguments]\r
-echo.\r
-echo.Download and build Tcl/Tk. This should only be performed in order to\r
-echo.update the binaries kept online - in most cases, the files downloaded\r
-echo.by the get_externals.bat script are sufficient for building CPython.\r
-echo.\r
-echo.Available flags:\r
-echo. -h Display this help message\r
-echo.\r
-echo.Available arguments:\r
-echo. --certificate (-c) The signing certificate to use for binaries.\r
-echo. --organization The github organization to obtain sources from.\r
-echo.\r
-exit /b 127\r
-\r
-:Run\r
-setlocal\r
-\r
-if "%PCBUILD%"=="" (set PCBUILD=%~dp0)\r
-if "%EXTERNALS_DIR%"=="" (set EXTERNALS_DIR=%PCBUILD%\..\externals)\r
-\r
-set CERT_SETTING=\r
-set ORG_SETTING=\r
-\r
-:CheckOpts\r
-if "%~1"=="-h" shift & goto Usage\r
-if "%~1"=="--certificate" (set SigningCertificate=%~2) && shift && shift & goto CheckOpts\r
-if "%~1"=="-c" (set SigningCertificate=%~2) && shift && shift & goto CheckOpts\r
-if "%~1"=="--organization" (set ORG_SETTING=--organization "%~2") && shift && shift && goto CheckOpts\r
-\r
-if "%~1"=="" goto Build\r
-echo Unrecognized option: %1\r
-goto Usage\r
-\r
-:Build\r
-call "%PCBUILD%\find_msbuild.bat" %MSBUILD%\r
-if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)\r
-\r
-rem call "%PCBUILD%\find_python.bat" "%PYTHON%"\r
-rem if ERRORLEVEL 1 (echo Cannot locate python.exe on PATH or as PYTHON variable & exit /b 3)\r
-\r
-call "%PCBUILD%\get_externals.bat" --tkinter-src %ORG_SETTING%\r
-\r
-%MSBUILD% "%PCBUILD%\tcl.vcxproj" /p:Configuration=Release /p:Platform=Win32\r
-%MSBUILD% "%PCBUILD%\tk.vcxproj" /p:Configuration=Release /p:Platform=Win32\r
-%MSBUILD% "%PCBUILD%\tix.vcxproj" /p:Configuration=Release /p:Platform=Win32\r
-\r
-%MSBUILD% "%PCBUILD%\tcl.vcxproj" /p:Configuration=Release /p:Platform=x64\r
-%MSBUILD% "%PCBUILD%\tk.vcxproj" /p:Configuration=Release /p:Platform=x64\r
-%MSBUILD% "%PCBUILD%\tix.vcxproj" /p:Configuration=Release /p:Platform=x64\r
-\r
-%MSBUILD% "%PCBUILD%\tcl.vcxproj" /p:Configuration=Release /p:Platform=ARM64\r
-%MSBUILD% "%PCBUILD%\tk.vcxproj" /p:Configuration=Release /p:Platform=ARM64\r
-%MSBUILD% "%PCBUILD%\tix.vcxproj" /p:Configuration=Release /p:Platform=ARM64\r
+@echo off
+rem Downloads and build sources for libraries we depend upon
+
+goto Run
+:Usage
+echo.%~nx0 [flags and arguments]
+echo.
+echo.Download and build Tcl/Tk. This should only be performed in order to
+echo.update the binaries kept online - in most cases, the files downloaded
+echo.by the get_externals.bat script are sufficient for building CPython.
+echo.
+echo.Available flags:
+echo. -h Display this help message
+echo.
+echo.Available arguments:
+echo. --certificate (-c) The signing certificate to use for binaries.
+echo. --organization The github organization to obtain sources from.
+echo.
+exit /b 127
+
+:Run
+setlocal
+
+if "%PCBUILD%"=="" (set PCBUILD=%~dp0)
+if "%EXTERNALS_DIR%"=="" (set EXTERNALS_DIR=%PCBUILD%\..\externals)
+
+set CERT_SETTING=
+set ORG_SETTING=
+
+:CheckOpts
+if "%~1"=="-h" shift & goto Usage
+if "%~1"=="--certificate" (set SigningCertificate=%~2) && shift && shift & goto CheckOpts
+if "%~1"=="-c" (set SigningCertificate=%~2) && shift && shift & goto CheckOpts
+if "%~1"=="--organization" (set ORG_SETTING=--organization "%~2") && shift && shift && goto CheckOpts
+
+if "%~1"=="" goto Build
+echo Unrecognized option: %1
+goto Usage
+
+:Build
+call "%PCBUILD%\find_msbuild.bat" %MSBUILD%
+if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)
+
+rem call "%PCBUILD%\find_python.bat" "%PYTHON%"
+rem if ERRORLEVEL 1 (echo Cannot locate python.exe on PATH or as PYTHON variable & exit /b 3)
+
+call "%PCBUILD%\get_externals.bat" --tkinter-src %ORG_SETTING%
+
+%MSBUILD% "%PCBUILD%\tcl.vcxproj" /p:Configuration=Release /p:Platform=Win32
+%MSBUILD% "%PCBUILD%\tk.vcxproj" /p:Configuration=Release /p:Platform=Win32
+%MSBUILD% "%PCBUILD%\tix.vcxproj" /p:Configuration=Release /p:Platform=Win32
+
+%MSBUILD% "%PCBUILD%\tcl.vcxproj" /p:Configuration=Release /p:Platform=x64
+%MSBUILD% "%PCBUILD%\tk.vcxproj" /p:Configuration=Release /p:Platform=x64
+%MSBUILD% "%PCBUILD%\tix.vcxproj" /p:Configuration=Release /p:Platform=x64
+
+%MSBUILD% "%PCBUILD%\tcl.vcxproj" /p:Configuration=Release /p:Platform=ARM64
+%MSBUILD% "%PCBUILD%\tk.vcxproj" /p:Configuration=Release /p:Platform=ARM64
+%MSBUILD% "%PCBUILD%\tix.vcxproj" /p:Configuration=Release /p:Platform=ARM64
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|ARM">\r
- <Configuration>Debug</Configuration>\r
- <Platform>ARM</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|ARM64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|Win32">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|x64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|ARM">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>ARM</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|ARM64">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|Win32">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|x64">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|ARM">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>ARM</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|ARM64">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|Win32">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|x64">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|ARM">\r
- <Configuration>Release</Configuration>\r
- <Platform>ARM</Platform>\r
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- <ProjectConfiguration Include="Release|ARM64">\r
- <Configuration>Release</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|Win32">\r
- <Configuration>Release</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|x64">\r
- <Configuration>Release</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- </ItemGroup>\r
- <PropertyGroup Label="Globals">\r
- <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>\r
- <ProjectGuid>{D06B6426-4762-44CC-8BAD-D79052507F2F}</ProjectGuid>\r
- <RootNamespace>pyexpat</RootNamespace>\r
- </PropertyGroup>\r
- <Import Project="python.props" />\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />\r
- <PropertyGroup Label="Configuration">\r
- <ConfigurationType>DynamicLibrary</ConfigurationType>\r
- <CharacterSet>NotSet</CharacterSet>\r
- </PropertyGroup>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />\r
- <PropertyGroup>\r
- <TargetExt>.pyd</TargetExt>\r
- </PropertyGroup>\r
- <ImportGroup Label="ExtensionSettings">\r
- </ImportGroup>\r
- <ImportGroup Label="PropertySheets">\r
- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />\r
- <Import Project="pyproject.props" />\r
- </ImportGroup>\r
- <PropertyGroup Label="UserMacros" />\r
- <ItemDefinitionGroup>\r
- <ClCompile>\r
- <AdditionalIncludeDirectories>$(PySourcePath)Modules\expat;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>\r
- <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;PYEXPAT_EXPORTS;XML_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>\r
- </ClCompile>\r
- </ItemDefinitionGroup>\r
- <ItemGroup>\r
- <ClInclude Include="..\Modules\expat\xmlrole.h" />\r
- <ClInclude Include="..\Modules\expat\xmltok.h" />\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ClCompile Include="..\Modules\pyexpat.c" />\r
- <ClCompile Include="..\Modules\expat\xmlparse.c" />\r
- <ClCompile Include="..\Modules\expat\xmlrole.c" />\r
- <ClCompile Include="..\Modules\expat\xmltok.c" />\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ResourceCompile Include="..\PC\python_nt.rc" />\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ProjectReference Include="pythoncore.vcxproj">\r
- <Project>{cf7ac3d1-e2df-41d2-bea6-1e2556cdea26}</Project>\r
- <ReferenceOutputAssembly>false</ReferenceOutputAssembly>\r
- </ProjectReference>\r
- </ItemGroup>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />\r
- <ImportGroup Label="ExtensionTargets">\r
- </ImportGroup>\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Debug|ARM">
+ <Configuration>Debug</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|ARM64">
+ <Configuration>Debug</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|Win32">
+ <Configuration>Debug</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|x64">
+ <Configuration>Debug</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|ARM">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|ARM64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|Win32">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|x64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|ARM">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|ARM64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|Win32">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|x64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM">
+ <Configuration>Release</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM64">
+ <Configuration>Release</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|x64">
+ <Configuration>Release</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+ <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+ <ProjectGuid>{D06B6426-4762-44CC-8BAD-D79052507F2F}</ProjectGuid>
+ <RootNamespace>pyexpat</RootNamespace>
+ </PropertyGroup>
+ <Import Project="python.props" />
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+ <PropertyGroup Label="Configuration">
+ <ConfigurationType>DynamicLibrary</ConfigurationType>
+ <CharacterSet>NotSet</CharacterSet>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <PropertyGroup>
+ <TargetExt>.pyd</TargetExt>
+ </PropertyGroup>
+ <ImportGroup Label="ExtensionSettings">
+ </ImportGroup>
+ <ImportGroup Label="PropertySheets">
+ <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+ <Import Project="pyproject.props" />
+ </ImportGroup>
+ <PropertyGroup Label="UserMacros" />
+ <ItemDefinitionGroup>
+ <ClCompile>
+ <AdditionalIncludeDirectories>$(PySourcePath)Modules\expat;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;PYEXPAT_EXPORTS;XML_STATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ </ClCompile>
+ </ItemDefinitionGroup>
+ <ItemGroup>
+ <ClInclude Include="..\Modules\expat\xmlrole.h" />
+ <ClInclude Include="..\Modules\expat\xmltok.h" />
+ </ItemGroup>
+ <ItemGroup>
+ <ClCompile Include="..\Modules\pyexpat.c" />
+ <ClCompile Include="..\Modules\expat\xmlparse.c" />
+ <ClCompile Include="..\Modules\expat\xmlrole.c" />
+ <ClCompile Include="..\Modules\expat\xmltok.c" />
+ </ItemGroup>
+ <ItemGroup>
+ <ResourceCompile Include="..\PC\python_nt.rc" />
+ </ItemGroup>
+ <ItemGroup>
+ <ProjectReference Include="pythoncore.vcxproj">
+ <Project>{cf7ac3d1-e2df-41d2-bea6-1e2556cdea26}</Project>
+ <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+ </ProjectReference>
+ </ItemGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+ <ImportGroup Label="ExtensionTargets">
+ </ImportGroup>
+</Project>
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup>\r
- <Filter Include="Header Files">\r
- <UniqueIdentifier>{ddae77a6-7ca0-4a1b-b71c-deea5f4025de}</UniqueIdentifier>\r
- </Filter>\r
- <Filter Include="Source Files">\r
- <UniqueIdentifier>{5af9d40c-fc46-4640-ad84-3d1dd34a71d7}</UniqueIdentifier>\r
- </Filter>\r
- <Filter Include="Resource Files">\r
- <UniqueIdentifier>{f1dbbdb5-41e5-4a88-bf8e-13da010c0ce4}</UniqueIdentifier>\r
- </Filter>\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ClInclude Include="..\Modules\expat\xmlrole.h">\r
- <Filter>Header Files</Filter>\r
- </ClInclude>\r
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- </ItemGroup>\r
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- <ResourceCompile Include="..\PC\python_nt.rc">\r
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- </ResourceCompile>\r
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+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup>
+ <Filter Include="Header Files">
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+ <Filter Include="Resource Files">
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+ </ClInclude>
+ </ItemGroup>
+ <ItemGroup>
+ <ClCompile Include="..\Modules\pyexpat.c">
+ <Filter>Source Files</Filter>
+ </ClCompile>
+ <ClCompile Include="..\Modules\expat\xmlparse.c">
+ <Filter>Source Files</Filter>
+ </ClCompile>
+ <ClCompile Include="..\Modules\expat\xmlrole.c">
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+ </ClCompile>
+ <ClCompile Include="..\Modules\expat\xmltok.c">
+ <Filter>Source Files</Filter>
+ </ClCompile>
+ </ItemGroup>
+ <ItemGroup>
+ <ResourceCompile Include="..\PC\python_nt.rc">
+ <Filter>Resource Files</Filter>
+ </ResourceCompile>
+ </ItemGroup>
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+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Debug|ARM">
+ <Configuration>Debug</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|ARM64">
+ <Configuration>Debug</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|Win32">
+ <Configuration>Debug</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|x64">
+ <Configuration>Debug</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|ARM">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|ARM64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|Win32">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|x64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|ARM">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|ARM64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|Win32">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|x64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM">
+ <Configuration>Release</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM64">
+ <Configuration>Release</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|x64">
+ <Configuration>Release</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+ <ProjectGuid>{7B2727B5-5A3F-40EE-A866-43A13CD31446}</ProjectGuid>
+ <RootNamespace>pylauncher</RootNamespace>
+ <TargetName>py</TargetName>
+ <SupportPGO>false</SupportPGO>
+ </PropertyGroup>
+ <Import Project="python.props" />
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+ <PropertyGroup Label="Configuration">
+ <ConfigurationType>Application</ConfigurationType>
+ <CharacterSet>Unicode</CharacterSet>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ImportGroup Label="ExtensionSettings">
+ </ImportGroup>
+ <PropertyGroup>
+ <MakeVersionInfoBeforeTarget>ClCompile</MakeVersionInfoBeforeTarget>
+ </PropertyGroup>
+ <ImportGroup Label="PropertySheets">
+ <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+ <Import Project="pyproject.props" />
+ </ImportGroup>
+ <PropertyGroup Label="UserMacros" />
+ <ItemDefinitionGroup>
+ <ClCompile>
+ <PreprocessorDefinitions>_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+ </ClCompile>
+ <Link>
+ <AdditionalDependencies>shell32.lib;pathcch.lib;%(AdditionalDependencies)</AdditionalDependencies>
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+ </Link>
+ </ItemDefinitionGroup>
+ <ItemGroup>
+ <ClCompile Include="..\PC\launcher2.c" />
+ </ItemGroup>
+ <ItemGroup>
+ <None Include="..\PC\launcher.ico" />
+ </ItemGroup>
+ <ItemGroup>
+ <ResourceCompile Include="..\PC\pylauncher.rc" />
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+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+ <ImportGroup Label="ExtensionTargets">
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+</Project>
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- <ResourceCompile Include="..\PC\pylauncher.rc">\r
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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup>
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+ <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
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+ </Filter>
+ <Filter Include="Resource Files">
+ <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
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+ <ItemGroup>
+ <ClCompile Include="..\PC\launcher.c">
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+ <ItemGroup>
+ <None Include="..\PC\launcher.ico">
+ <Filter>Resource Files</Filter>
+ </None>
+ </ItemGroup>
+ <ItemGroup>
+ <ResourceCompile Include="..\PC\pylauncher.rc">
+ <Filter>Resource Files</Filter>
+ </ResourceCompile>
+ </ItemGroup>
</Project>
\ No newline at end of file
-<?xml version="1.0" encoding="utf-8"?>\r
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- <LinkIncremental Condition="$(Configuration) != 'Debug'">false</LinkIncremental>\r
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- <PropertyGroup>\r
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- <!--\r
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- <Target Name="CleanAll" DependsOnTargets="Clean">\r
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- <Target Name="_SignBuild" AfterTargets="AfterBuild" Condition="'$(_SignCommand)' != '' and $(SupportSigning)">\r
- <Error Text="Unable to locate signtool.exe. Set /p:SignToolPath and rebuild" Condition="'$(_SignCommand)' == ''" />\r
- <Exec Command='$(_SignCommand) "$(TargetPath)" || $(_SignCommand) "$(TargetPath)" || $(_SignCommand) "$(TargetPath)"' ContinueOnError="false" />\r
- </Target>\r
-\r
-\r
- <Target Name="FindVCRedistDir">\r
- <!-- Hard coded path for VS 2015 -->\r
- <PropertyGroup Condition="$(PlatformToolset) == 'v140'">\r
- <VCRedistDir>$(VCInstallDir)\redist\</VCRedistDir>\r
- </PropertyGroup>\r
-\r
- <!-- Search for version number in some broken Build Tools installs -->\r
- <ItemGroup Condition="$(VCRedistDir) == '' and $(VCToolsRedistVersion) == ''">\r
- <_RedistFiles Include="$(VCInstallDir)\Redist\MSVC\*\*.*" />\r
- </ItemGroup>\r
- <PropertyGroup Condition="$(VCRedistDir) == '' and $(VCToolsRedistVersion) == ''">\r
- <_RedistDir>%(_RedistFiles.Directory)</_RedistDir>\r
- <VCToolsRedistVersion>$([System.IO.Path]::GetFileName($(_RedistDir.Trim(`\`))))</VCToolsRedistVersion>\r
- </PropertyGroup>\r
-\r
- <!-- Use correct path for VS 2017 and later -->\r
- <PropertyGroup Condition="$(VCRedistDir) == ''">\r
- <VCRedistDir>$(VCInstallDir)\Redist\MSVC\$(VCToolsRedistVersion)\</VCRedistDir>\r
- </PropertyGroup>\r
-\r
- <PropertyGroup>\r
- <VCRedistDir Condition="$(Platform) == 'Win32'">$(VCRedistDir)x86\</VCRedistDir>\r
- <VCRedistDir Condition="$(Platform) != 'Win32'">$(VCRedistDir)$(Platform)\</VCRedistDir>\r
- </PropertyGroup>\r
-\r
- <Message Text="VC Redist Directory: $(VCRedistDir)" />\r
- <Message Text="VC Redist Version: $(VCToolsRedistVersion)" />\r
- </Target>\r
-\r
- <Target Name="FindVCRuntime" Returns="VCRuntimeDLL" DependsOnTargets="FindVCRedistDir">\r
- <ItemGroup Condition="$(VCInstallDir) != ''">\r
- <VCRuntimeDLL Include="$(VCRedistDir)\Microsoft.VC*.CRT\vcruntime*.dll" />\r
- </ItemGroup>\r
-\r
- <Warning Text="vcruntime*.dll not found under $(VCRedistDir)." Condition="@(VCRuntimeDLL) == ''" />\r
- <Message Text="VC Runtime DLL(s):%0A- @(VCRuntimeDLL,'%0A- ')" />\r
- </Target>\r
-\r
- <Target Name="FindPythonForBuild" Condition="$(PythonForBuild) == ''">\r
- <Exec Command=""$(MSBuildThisFileDirectory)\find_python.bat" -q"\r
- EchoOff="true"\r
- ConsoleToMsBuild="true">\r
- <Output TaskParameter="ConsoleOutput" ItemName="_CmdExeLines" />\r
- </Exec>\r
- <PropertyGroup>\r
- <PythonForBuild>@(_CmdExeLines)</PythonForBuild>\r
- </PropertyGroup>\r
- <Error Text="Failed to locate suitable Python runtime for building from source." Condition="$(PythonForBuild)==''" />\r
- <Message Text="Using PythonForBuild=$(PythonForBuild)" Importance="high" />\r
- </Target>\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" TreatAsLocalProperty="Py_IntDir">
+ <Import Project="python.props" Condition="$(__Python_Props_Imported) != 'true'" />
+ <PropertyGroup Label="Globals">
+ <__PyProject_Props_Imported>true</__PyProject_Props_Imported>
+ <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+ <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
+ <OutDir>$(BuildPath)</OutDir>
+ <OutDir Condition="!HasTrailingSlash($(OutDir))">$(OutDir)\</OutDir>
+ <Py_IntDir Condition="'$(Py_IntDir)' == ''">$(MSBuildThisFileDirectory)obj\</Py_IntDir>
+ <IntDir>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)$(ArchName)_$(Configuration)\$(ProjectName)\</IntDir>
+ <IntDir>$(IntDir.Replace(`\\`, `\`))</IntDir>
+ <TargetName Condition="'$(TargetName)' == ''">$(ProjectName)</TargetName>
+ <TargetName>$(TargetName)$(PyDebugExt)</TargetName>
+ <GenerateManifest>false</GenerateManifest>
+ <EmbedManifest>false</EmbedManifest>
+ <SupportPGO Condition="'$(SupportPGO)' == ''">true</SupportPGO>
+ <SupportSigning Condition="'$(SupportSigning)' == ''">true</SupportSigning>
+ <SupportSigning Condition="'$(Configuration)' == 'Debug'">false</SupportSigning>
+ <SupportSigning Condition="'$(ConfigurationType)' == 'StaticLibrary'">false</SupportSigning>
+ <LinkIncremental Condition="$(Configuration) != 'Debug'">false</LinkIncremental>
+ </PropertyGroup>
+
+ <PropertyGroup>
+ <_DebugPreprocessorDefinition>NDEBUG;</_DebugPreprocessorDefinition>
+ <_DebugPreprocessorDefinition Condition="$(Configuration) == 'Debug'">_DEBUG;</_DebugPreprocessorDefinition>
+ <_PlatformPreprocessorDefinition>_WIN32;</_PlatformPreprocessorDefinition>
+ <_PlatformPreprocessorDefinition Condition="$(Platform) == 'x64'">_WIN64;_M_X64;</_PlatformPreprocessorDefinition>
+ <_Py3NamePreprocessorDefinition>PY3_DLLNAME=L"$(Py3DllName)";</_Py3NamePreprocessorDefinition>
+ </PropertyGroup>
+ <ItemDefinitionGroup>
+ <ClCompile>
+ <AdditionalIncludeDirectories>$(PySourcePath)Include;$(PySourcePath)Include\internal;$(PySourcePath)PC;$(IntDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ <PreprocessorDefinitions>WIN32;$(_Py3NamePreprocessorDefinition);$(_PlatformPreprocessorDefinition)$(_DebugPreprocessorDefinition)$(_PydPreprocessorDefinition)%(PreprocessorDefinitions)</PreprocessorDefinitions>
+
+ <Optimization>MaxSpeed</Optimization>
+ <IntrinsicFunctions>true</IntrinsicFunctions>
+ <StringPooling>true</StringPooling>
+ <ExceptionHandling></ExceptionHandling>
+ <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+ <FunctionLevelLinking>true</FunctionLevelLinking>
+ <WarningLevel>Level3</WarningLevel>
+ <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+ <CompileAs>Default</CompileAs>
+ <SuppressStartupBanner>true</SuppressStartupBanner>
+ <WholeProgramOptimization>true</WholeProgramOptimization>
+ <ControlFlowGuard Condition="$(EnableControlFlowGuard) != ''">$(EnableControlFlowGuard)</ControlFlowGuard>
+ <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
+ <MultiProcessorCompilation>true</MultiProcessorCompilation>
+ </ClCompile>
+ <ClCompile Condition="$(Configuration) == 'Debug'">
+ <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
+ <Optimization>Disabled</Optimization>
+ <WholeProgramOptimization>false</WholeProgramOptimization>
+ <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+ </ClCompile>
+ <ClCompile Condition="$(ICCBuild) == 'true'">
+ <FloatingPointModel>Strict</FloatingPointModel>
+ </ClCompile>
+ <Link>
+ <AdditionalLibraryDirectories>$(OutDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+ <GenerateDebugInformation>true</GenerateDebugInformation>
+ <ProgramDatabaseFile>$(OutDir)$(TargetName).pdb</ProgramDatabaseFile>
+ <SubSystem>Windows</SubSystem>
+ <RandomizedBaseAddress>true</RandomizedBaseAddress>
+ <DataExecutionPrevention>true</DataExecutionPrevention>
+ <SuppressStartupBanner>true</SuppressStartupBanner>
+ <IgnoreSpecificDefaultLibraries>LIBC;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
+ <TargetMachine>MachineX86</TargetMachine>
+ <TargetMachine Condition="'$(Platform)' == 'x64'">MachineX64</TargetMachine>
+ <TargetMachine Condition="'$(Platform)'=='ARM'">MachineARM</TargetMachine>
+ <TargetMachine Condition="'$(Platform)'=='ARM64'">MachineARM64</TargetMachine>
+ <ProfileGuidedDatabase Condition="$(SupportPGO)">$(OutDir)$(TargetName).pgd</ProfileGuidedDatabase>
+ <LinkTimeCodeGeneration Condition="$(Configuration) == 'Release'">UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
+ <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGInstrument'">PGInstrument</LinkTimeCodeGeneration>
+ <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGUpdate'">PGUpdate</LinkTimeCodeGeneration>
+ <AdditionalDependencies>advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+ <AdditionalOptions Condition="$(Configuration) != 'Debug'">/OPT:REF,NOICF %(AdditionalOptions)</AdditionalOptions>
+ </Link>
+ <Lib>
+ <LinkTimeCodeGeneration Condition="$(Configuration) == 'Release'">true</LinkTimeCodeGeneration>
+ <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGInstrument'">true</LinkTimeCodeGeneration>
+ <LinkTimeCodeGeneration Condition="$(SupportPGO) and $(Configuration) == 'PGUpdate'">true</LinkTimeCodeGeneration>
+ </Lib>
+ <ResourceCompile>
+ <AdditionalIncludeDirectories>$(PySourcePath)PC;$(PySourcePath)Include;$(IntDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+ <PreprocessorDefinitions>ORIGINAL_FILENAME=\"$(TargetName)$(TargetExt)\";FIELD3=$(Field3Value);$(_DebugPreprocessorDefinition)%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <Culture>0x0409</Culture>
+ </ResourceCompile>
+ <Midl>
+ <PreprocessorDefinitions>$(_DebugPreprocessorDefinition)%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <MkTypLibCompatible>true</MkTypLibCompatible>
+ <SuppressStartupBanner>true</SuppressStartupBanner>
+ <TargetEnvironment>Win32</TargetEnvironment>
+ <TargetEnvironment Condition="'$(Platform)' == 'x64'">X64</TargetEnvironment>
+ <OutputDirectory>$(IntDir)</OutputDirectory>
+ <InterfaceIdentifierFileName>$(MSBuildProjectName)_i.c</InterfaceIdentifierFileName>
+ <ProxyFileName>$(MSBuildProjectName)_p.c</ProxyFileName>
+ </Midl>
+ </ItemDefinitionGroup>
+
+ <UsingTask TaskName="KillPython" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
+ <ParameterGroup>
+ <FileName Required="true" />
+ </ParameterGroup>
+ <Task>
+ <Using Namespace="System.Diagnostics"/>
+ <Using Namespace="System.IO"/>
+ <Using Namespace="System.Runtime.InteropServices"/>
+ <Using Namespace="System.Text"/>
+ <Code Type="Method" Language="cs">
+<![CDATA[
+[DllImport("kernel32.dll", SetLastError=true, CharSet=CharSet.Unicode)]
+public static extern bool QueryFullProcessImageName([In]IntPtr hProcess, [In]int dwFlags,
+ [Out]StringBuilder lpExeName, ref int lpdwSize);
+public override bool Execute() {
+ string fullPath = Path.GetFullPath(FileName);
+ Log.LogMessage("Looking for " + fullPath, MessageImportance.Normal);
+ foreach (Process p in Process.GetProcesses()) {
+ try {
+ int pathLength = 32768;
+ StringBuilder pathBuilder = new StringBuilder(pathLength);
+ if (QueryFullProcessImageName(p.Handle, 0, pathBuilder, ref pathLength)) {
+ string exeName = Path.GetFullPath(pathBuilder.ToString());
+ Log.LogMessage("Found running process: " + exeName, MessageImportance.Low);
+ if (fullPath.Equals(exeName, StringComparison.OrdinalIgnoreCase)) {
+ Log.LogMessage("Terminating " + exeName, MessageImportance.High);
+ p.Kill();
+ }
+ }
+ } catch {
+ }
+ }
+ return true;
+}
+]]>
+ </Code>
+ </Task>
+ </UsingTask>
+
+ <Target Name="KillPython" BeforeTargets="PrepareForBuild" Condition="'$(KillPython)' == 'true'">
+ <Message Text="Killing any running python$(PyDebugExt)$(PyTestExt).exe instances..." Importance="high" />
+ <KillPython FileName="$(OutDir)python$(PyDebugExt)$(PyTestExt).exe" />
+ </Target>
+
+ <!--
+ A default target to handle msbuild pcbuild.proj /t:CleanAll.
+
+ Some externals projects don't respond to /t:Clean, so we invoke
+ CleanAll on them when we really want to clean up.
+ -->
+ <Target Name="CleanAll" DependsOnTargets="Clean">
+ <MSBuild Projects="@(ProjectReference->'%(FullPath)')"
+ Properties="Configuration=$(Configuration);Platform=$(Platform)"
+ BuildInParallel="true"
+ StopOnFirstFailure="false"
+ Condition="Exists(%(FullPath))"
+ Targets="CleanAll" />
+ </Target>
+
+ <Target Name="CopyPGCFiles" BeforeTargets="PrepareForBuild" Condition="$(Configuration) == 'PGUpdate'">
+ <ItemGroup>
+ <_PGCFiles Include="$(OutDir)instrumented\$(TargetName)!*.pgc" />
+ <_PGDFile Include="$(OutDir)instrumented\$(TargetName).pgd" />
+ <_CopyFiles Include="@(_PGCFiles);@(_PGDFile)" Condition="Exists(%(FullPath))" />
+ </ItemGroup>
+ <Delete Files="@(_CopyFiles->'$(OutDir)%(Filename)%(Extension)')" />
+ <Error Text="PGO run did not succeed (no $(TargetName)!*.pgc files) and there is no data to merge"
+ Condition="$(RequirePGCFiles) == 'true' and @(_PGCFiles) == ''" />
+ <Copy SourceFiles="@(_CopyFiles)"
+ DestinationFolder="$(OutDir)"
+ UseHardLinksIfPossible="true"
+ OverwriteReadOnlyFiles="true" />
+ </Target>
+
+ <PropertyGroup>
+ <SdkBinPath Condition="'$(SdkBinPath)' == '' or !Exists($(SdkBinPath))">$(registry:HKEY_LOCAL_MACHINE\Software\Microsoft\Windows Kits\Installed Roots@KitsRoot10)\bin\$(DefaultWindowsSDKVersion)\x86</SdkBinPath>
+ <SdkBinPath Condition="!Exists($(SdkBinPath))">$(registry:HKEY_LOCAL_MACHINE\Software\Microsoft\Windows Kits\Installed Roots@KitsRoot10)\bin\x86</SdkBinPath>
+ <SdkBinPath Condition="!Exists($(SdkBinPath))">$(registry:HKEY_LOCAL_MACHINE\Software\Microsoft\Windows Kits\Installed Roots@KitsRoot81)\bin\x86</SdkBinPath>
+ <SdkBinPath Condition="!Exists($(SdkBinPath))">$(registry:HKEY_LOCAL_MACHINE\Software\Microsoft\Windows Kits\Installed Roots@KitsRoot)\bin\x86</SdkBinPath>
+ <SdkBinPath Condition="!Exists($(SdkBinPath))">$(registry:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.1A@InstallationFolder)\Bin\</SdkBinPath>
+ <_SignCommand Condition="Exists($(SdkBinPath)) and '$(SigningCertificate)' != '' and $(SupportSigning)">"$(SdkBinPath)\signtool.exe" sign /a /n "$(SigningCertificate)" /fd sha256 /tr http://timestamp.digicert.com/ /td sha256 /d "Python $(PythonVersion)"</_SignCommand>
+ <_SignCommand Condition="Exists($(SdkBinPath)) and '$(SigningCertificateSha1)' != '' and $(SupportSigning)">"$(SdkBinPath)\signtool.exe" sign /a /sha1 "$(SigningCertificateSha1)" /fd sha256 /tr http://timestamp.digicert.com/ /td sha256 /d "Python $(PythonVersion)"</_SignCommand>
+ <_MakeCatCommand Condition="Exists($(SdkBinPath))">"$(SdkBinPath)\makecat.exe"</_MakeCatCommand>
+ </PropertyGroup>
+
+ <Target Name="_SignBuild" AfterTargets="AfterBuild" Condition="'$(_SignCommand)' != '' and $(SupportSigning)">
+ <Error Text="Unable to locate signtool.exe. Set /p:SignToolPath and rebuild" Condition="'$(_SignCommand)' == ''" />
+ <Exec Command='$(_SignCommand) "$(TargetPath)" || $(_SignCommand) "$(TargetPath)" || $(_SignCommand) "$(TargetPath)"' ContinueOnError="false" />
+ </Target>
+
+
+ <Target Name="FindVCRedistDir">
+ <!-- Hard coded path for VS 2015 -->
+ <PropertyGroup Condition="$(PlatformToolset) == 'v140'">
+ <VCRedistDir>$(VCInstallDir)\redist\</VCRedistDir>
+ </PropertyGroup>
+
+ <!-- Search for version number in some broken Build Tools installs -->
+ <ItemGroup Condition="$(VCRedistDir) == '' and $(VCToolsRedistVersion) == ''">
+ <_RedistFiles Include="$(VCInstallDir)\Redist\MSVC\*\*.*" />
+ </ItemGroup>
+ <PropertyGroup Condition="$(VCRedistDir) == '' and $(VCToolsRedistVersion) == ''">
+ <_RedistDir>%(_RedistFiles.Directory)</_RedistDir>
+ <VCToolsRedistVersion>$([System.IO.Path]::GetFileName($(_RedistDir.Trim(`\`))))</VCToolsRedistVersion>
+ </PropertyGroup>
+
+ <!-- Use correct path for VS 2017 and later -->
+ <PropertyGroup Condition="$(VCRedistDir) == ''">
+ <VCRedistDir>$(VCInstallDir)\Redist\MSVC\$(VCToolsRedistVersion)\</VCRedistDir>
+ </PropertyGroup>
+
+ <PropertyGroup>
+ <VCRedistDir Condition="$(Platform) == 'Win32'">$(VCRedistDir)x86\</VCRedistDir>
+ <VCRedistDir Condition="$(Platform) != 'Win32'">$(VCRedistDir)$(Platform)\</VCRedistDir>
+ </PropertyGroup>
+
+ <Message Text="VC Redist Directory: $(VCRedistDir)" />
+ <Message Text="VC Redist Version: $(VCToolsRedistVersion)" />
+ </Target>
+
+ <Target Name="FindVCRuntime" Returns="VCRuntimeDLL" DependsOnTargets="FindVCRedistDir">
+ <ItemGroup Condition="$(VCInstallDir) != ''">
+ <VCRuntimeDLL Include="$(VCRedistDir)\Microsoft.VC*.CRT\vcruntime*.dll" />
+ </ItemGroup>
+
+ <Warning Text="vcruntime*.dll not found under $(VCRedistDir)." Condition="@(VCRuntimeDLL) == ''" />
+ <Message Text="VC Runtime DLL(s):%0A- @(VCRuntimeDLL,'%0A- ')" />
+ </Target>
+
+ <Target Name="FindPythonForBuild" Condition="$(PythonForBuild) == ''">
+ <Exec Command=""$(MSBuildThisFileDirectory)\find_python.bat" -q"
+ EchoOff="true"
+ ConsoleToMsBuild="true">
+ <Output TaskParameter="ConsoleOutput" ItemName="_CmdExeLines" />
+ </Exec>
+ <PropertyGroup>
+ <PythonForBuild>@(_CmdExeLines)</PythonForBuild>
+ </PropertyGroup>
+ <Error Text="Failed to locate suitable Python runtime for building from source." Condition="$(PythonForBuild)==''" />
+ <Message Text="Using PythonForBuild=$(PythonForBuild)" Importance="high" />
+ </Target>
+</Project>
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|ARM">\r
- <Configuration>Debug</Configuration>\r
- <Platform>ARM</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|ARM64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|Win32">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|x64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|ARM">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>ARM</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|ARM64">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|Win32">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|x64">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|ARM">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>ARM</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|ARM64">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|Win32">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|x64">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|ARM">\r
- <Configuration>Release</Configuration>\r
- <Platform>ARM</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|ARM64">\r
- <Configuration>Release</Configuration>\r
- <Platform>ARM64</Platform>\r
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- <ProjectConfiguration Include="Release|Win32">\r
- <Configuration>Release</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|x64">\r
- <Configuration>Release</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- </ItemGroup>\r
- <PropertyGroup Label="Globals">\r
- <ProjectGuid>{0F6EE4A4-C75F-4578-B4B3-2D64F4B9B782}</ProjectGuid>\r
- <RootNamespace>pyshellext</RootNamespace>\r
- <TargetName>pyshellext</TargetName>\r
- <SupportPGO>false</SupportPGO>\r
- </PropertyGroup>\r
- <Import Project="python.props" />\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />\r
- <PropertyGroup Label="Configuration">\r
- <ConfigurationType>DynamicLibrary</ConfigurationType>\r
- <CharacterSet>Unicode</CharacterSet>\r
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- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />\r
- <ImportGroup Label="ExtensionSettings">\r
- </ImportGroup>\r
- <PropertyGroup>\r
- <MakeVersionInfoBeforeTarget>ClCompile</MakeVersionInfoBeforeTarget>\r
- </PropertyGroup>\r
- <ImportGroup Label="PropertySheets">\r
- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />\r
- <Import Project="pyproject.props" />\r
- </ImportGroup>\r
- <PropertyGroup Label="UserMacros" />\r
- <ItemDefinitionGroup>\r
- <ClCompile>\r
- <PreprocessorDefinitions>_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>\r
- </ClCompile>\r
- <Link>\r
- <AdditionalDependencies>version.lib;shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>\r
- <SubSystem>Console</SubSystem>\r
- <ModuleDefinitionFile>..\PC\pyshellext.def</ModuleDefinitionFile>\r
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- <Midl>\r
- <CompileInterface>true</CompileInterface>\r
- </Midl>\r
- </ItemDefinitionGroup>\r
- <ItemGroup>\r
- <ClCompile Include="..\PC\pyshellext.cpp" />\r
- </ItemGroup>\r
- <ItemGroup>\r
- <None Include="..\PC\pyshellext.def" />\r
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- <ItemGroup>\r
- <ResourceCompile Include="..\PC\pyshellext.rc" />\r
- </ItemGroup>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />\r
- <ImportGroup Label="ExtensionTargets">\r
- </ImportGroup>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Debug|ARM">
+ <Configuration>Debug</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|ARM64">
+ <Configuration>Debug</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|Win32">
+ <Configuration>Debug</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|x64">
+ <Configuration>Debug</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|ARM">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|ARM64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|Win32">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|x64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|ARM">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|ARM64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>ARM64</Platform>
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+ <ProjectConfiguration Include="PGUpdate|Win32">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>Win32</Platform>
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+ <ProjectConfiguration Include="PGUpdate|x64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM">
+ <Configuration>Release</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM64">
+ <Configuration>Release</Configuration>
+ <Platform>ARM64</Platform>
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+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|x64">
+ <Configuration>Release</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
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+ <PropertyGroup Label="Globals">
+ <ProjectGuid>{0F6EE4A4-C75F-4578-B4B3-2D64F4B9B782}</ProjectGuid>
+ <RootNamespace>pyshellext</RootNamespace>
+ <TargetName>pyshellext</TargetName>
+ <SupportPGO>false</SupportPGO>
+ </PropertyGroup>
+ <Import Project="python.props" />
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+ <PropertyGroup Label="Configuration">
+ <ConfigurationType>DynamicLibrary</ConfigurationType>
+ <CharacterSet>Unicode</CharacterSet>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ImportGroup Label="ExtensionSettings">
+ </ImportGroup>
+ <PropertyGroup>
+ <MakeVersionInfoBeforeTarget>ClCompile</MakeVersionInfoBeforeTarget>
+ </PropertyGroup>
+ <ImportGroup Label="PropertySheets">
+ <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+ <Import Project="pyproject.props" />
+ </ImportGroup>
+ <PropertyGroup Label="UserMacros" />
+ <ItemDefinitionGroup>
+ <ClCompile>
+ <PreprocessorDefinitions>_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ </ClCompile>
+ <Link>
+ <AdditionalDependencies>version.lib;shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+ <SubSystem>Console</SubSystem>
+ <ModuleDefinitionFile>..\PC\pyshellext.def</ModuleDefinitionFile>
+ </Link>
+ <Midl>
+ <CompileInterface>true</CompileInterface>
+ </Midl>
+ </ItemDefinitionGroup>
+ <ItemGroup>
+ <ClCompile Include="..\PC\pyshellext.cpp" />
+ </ItemGroup>
+ <ItemGroup>
+ <None Include="..\PC\pyshellext.def" />
+ </ItemGroup>
+ <ItemGroup>
+ <ResourceCompile Include="..\PC\pyshellext.rc" />
+ </ItemGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+ <ImportGroup Label="ExtensionTargets">
+ </ImportGroup>
</Project>
\ No newline at end of file
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup>\r
- <Filter Include="Source Files">\r
- <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>\r
- <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>\r
- </Filter>\r
- <Filter Include="Resource Files">\r
- <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>\r
- <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>\r
- </Filter>\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ClCompile Include="..\PC\pyshellext.cpp">\r
- <Filter>Source Files</Filter>\r
- </ClCompile>\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ResourceCompile Include="..\PC\pyshellext.rc">\r
- <Filter>Resource Files</Filter>\r
- </ResourceCompile>\r
- </ItemGroup>\r
- <ItemGroup>\r
- <None Include="..\PC\pyshellext.def">\r
- <Filter>Source Files</Filter>\r
- </None>\r
- </ItemGroup>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup>
+ <Filter Include="Source Files">
+ <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+ <Extensions>cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+ </Filter>
+ <Filter Include="Resource Files">
+ <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+ <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+ </Filter>
+ </ItemGroup>
+ <ItemGroup>
+ <ClCompile Include="..\PC\pyshellext.cpp">
+ <Filter>Source Files</Filter>
+ </ClCompile>
+ </ItemGroup>
+ <ItemGroup>
+ <ResourceCompile Include="..\PC\pyshellext.rc">
+ <Filter>Resource Files</Filter>
+ </ResourceCompile>
+ </ItemGroup>
+ <ItemGroup>
+ <None Include="..\PC\pyshellext.def">
+ <Filter>Source Files</Filter>
+ </None>
+ </ItemGroup>
</Project>
\ No newline at end of file
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <PropertyGroup>\r
- <__Python_Props_Imported>true</__Python_Props_Imported>\r
- <Platform Condition="'$(Platform)' == ''">Win32</Platform>\r
- <Configuration Condition="'$(Configuration)' == ''">Release</Configuration>\r
- <!--\r
- Use the latest available version of Visual Studio to build. To override\r
- this and build with an earlier version, pass "/p:PlatformToolset=v100"\r
- (for example) when building.\r
-\r
- We set BasePlatformToolset for ICC's benefit, it's otherwise ignored.\r
- -->\r
- <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VisualStudioVersion)' == '17.0'">v143</BasePlatformToolset>\r
- <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VisualStudioVersion)' == '16.0'">v142</BasePlatformToolset>\r
- <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and ('$(MSBuildToolsVersion)' == '15.0' or '$(VisualStudioVersion)' == '15.0')">v141</BasePlatformToolset>\r
- <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VCTargetsPath14)' != ''">v140</BasePlatformToolset>\r
- <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VCTargetsPath12)' != ''">v120</BasePlatformToolset>\r
- <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VCTargetsPath11)' != ''">v110</BasePlatformToolset>\r
- <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VCTargetsPath10)' != ''">v100</BasePlatformToolset>\r
-\r
- <PlatformToolset Condition="'$(PlatformToolset)' == ''">$(BasePlatformToolset)</PlatformToolset>\r
- <ICCBuild>false</ICCBuild>\r
- <ICCBuild Condition="$(PlatformToolset.StartsWith(`Intel C++ Compiler`))">true</ICCBuild>\r
-\r
- <!--\r
- Convincing MSVC/MSBuild to prefer our platform names is too difficult,\r
- so we define our own constant ArchName and use wherever we need it.\r
- -->\r
- <ArchName Condition="'$(ArchName)' == '' and $(Platform) == 'x64'">amd64</ArchName>\r
- <ArchName Condition="'$(ArchName)' == '' and $(Platform) == 'ARM'">arm32</ArchName>\r
- <ArchName Condition="'$(ArchName)' == '' and $(Platform) == 'ARM64'">arm64</ArchName>\r
- <ArchName Condition="'$(ArchName)' == ''">win32</ArchName>\r
- \r
- <!-- Root directory of the repository -->\r
- <PySourcePath Condition="'$(PySourcePath)' == ''">$([System.IO.Path]::GetFullPath($(MSBuildThisFileDirectory)\..\))</PySourcePath>\r
- <PySourcePath Condition="!HasTrailingSlash($(PySourcePath))">$(PySourcePath)\</PySourcePath>\r
- \r
- <!-- Directory where build outputs are put -->\r
- <BuildPath32 Condition="'$(Py_OutDir)' == ''">$(PySourcePath)PCbuild\win32\</BuildPath32>\r
- <BuildPath32 Condition="'$(Py_OutDir)' != ''">$(Py_OutDir)\win32\</BuildPath32>\r
- <BuildPath64 Condition="'$(Py_OutDir)' == ''">$(PySourcePath)PCbuild\amd64\</BuildPath64>\r
- <BuildPath64 Condition="'$(Py_OutDir)' != ''">$(Py_OutDir)\amd64\</BuildPath64>\r
- <BuildPathArm32 Condition="'$(Py_OutDir)' == ''">$(PySourcePath)PCbuild\arm32\</BuildPathArm32>\r
- <BuildPathArm32 Condition="'$(Py_OutDir)' != ''">$(Py_OutDir)\arm32\</BuildPathArm32>\r
- <BuildPathArm64 Condition="'$(Py_OutDir)' == ''">$(PySourcePath)PCbuild\arm64\</BuildPathArm64>\r
- <BuildPathArm64 Condition="'$(Py_OutDir)' != ''">$(Py_OutDir)\arm64\</BuildPathArm64>\r
- <BuildPath Condition="'$(ArchName)' == 'win32'">$(BuildPath32)</BuildPath>\r
- <BuildPath Condition="'$(ArchName)' == 'amd64'">$(BuildPath64)</BuildPath>\r
- <BuildPath Condition="'$(ArchName)' == 'arm32'">$(BuildPathArm32)</BuildPath>\r
- <BuildPath Condition="'$(ArchName)' == 'arm64'">$(BuildPathArm64)</BuildPath>\r
- <BuildPath Condition="'$(BuildPath)' == ''">$(PySourcePath)PCbuild\$(ArchName)\</BuildPath>\r
- <BuildPath Condition="!HasTrailingSlash($(BuildPath))">$(BuildPath)\</BuildPath>\r
- <BuildPath Condition="$(Configuration) == 'PGInstrument'">$(BuildPath)instrumented\</BuildPath>\r
- \r
- <!-- VPATH definition (escaped) -->\r
- <PyVPath Condition="$(Configuration) != 'PGInstrument'">..\\..</PyVPath>\r
- <PyVPath Condition="$(Configuration) == 'PGInstrument'">..\\..\\..</PyVPath>\r
-\r
- <!-- Directories of external projects. tcltk is handled in tcltk.props -->\r
- <ExternalsDir>$(EXTERNALS_DIR)</ExternalsDir>\r
- <ExternalsDir Condition="$(ExternalsDir) == ''">$([System.IO.Path]::GetFullPath(`$(PySourcePath)externals`))</ExternalsDir>\r
- <ExternalsDir Condition="!HasTrailingSlash($(ExternalsDir))">$(ExternalsDir)\</ExternalsDir>\r
- <sqlite3Dir>$(ExternalsDir)sqlite-3.38.4.0\</sqlite3Dir>\r
- <bz2Dir>$(ExternalsDir)bzip2-1.0.8\</bz2Dir>\r
- <lzmaDir>$(ExternalsDir)xz-5.2.5\</lzmaDir>\r
- <libffiDir>$(ExternalsDir)libffi-3.4.2\</libffiDir>\r
- <libffiOutDir>$(ExternalsDir)libffi-3.4.2\$(ArchName)\</libffiOutDir>\r
- <libffiIncludeDir>$(libffiOutDir)include</libffiIncludeDir>\r
- <opensslDir>$(ExternalsDir)openssl-1.1.1q\</opensslDir>\r
- <opensslOutDir>$(ExternalsDir)openssl-bin-1.1.1q\$(ArchName)\</opensslOutDir>\r
- <opensslIncludeDir>$(opensslOutDir)include</opensslIncludeDir>\r
- <nasmDir>$(ExternalsDir)\nasm-2.11.06\</nasmDir>\r
- <zlibDir>$(ExternalsDir)\zlib-1.2.12\</zlibDir>\r
- \r
- <!-- Suffix for all binaries when building for debug -->\r
- <PyDebugExt Condition="'$(PyDebugExt)' == '' and $(Configuration) == 'Debug'">_d</PyDebugExt>\r
- \r
- <!-- Suffix for versions/keys when building with test markers -->\r
- <PyTestExt Condition="$(UseTestMarker) == 'true'">-test</PyTestExt>\r
- \r
- <!-- Suffix for versions/keys when building for particular platforms -->\r
- <PyArchExt Condition="'$(ArchName)' == 'win32'">-32</PyArchExt>\r
- <PyArchExt Condition="'$(ArchName)' == 'arm32'">-arm32</PyArchExt>\r
- <PyArchExt Condition="'$(ArchName)' == 'arm64'">-arm64</PyArchExt>\r
- \r
- <!-- Full path of the resulting python.exe binary -->\r
- <PythonExe Condition="'$(PythonExe)' == ''">$(BuildPath)python$(PyDebugExt).exe</PythonExe>\r
-\r
- <!-- Include Tkinter by default -->\r
- <IncludeTkinter Condition="'$(IncludeTkinter)' == ''">true</IncludeTkinter>\r
- </PropertyGroup>\r
- \r
- <PropertyGroup Condition="'$(Platform)'=='ARM'" Label="ArmConfiguration">\r
- <WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>\r
- </PropertyGroup>\r
-\r
- <PropertyGroup Condition="'$(Platform)'=='ARM64'" Label="Arm64Configuration">\r
- <WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>\r
- </PropertyGroup>\r
-\r
- <PropertyGroup Condition="$(DefaultWindowsSDKVersion) == ''">\r
- <!--\r
- Attempt to select the latest installed WinSDK. If we don't find any, then we will\r
- let the MSBuild targets determine which one it wants to use (typically the earliest\r
- possible version). Since we limit WINVER to Windows 7 anyway, it doesn't really\r
- matter which WinSDK version we use.\r
- -->\r
- <_RegistryVersion>$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v10.0@ProductVersion)</_RegistryVersion>\r
- <_RegistryVersion Condition="$(_RegistryVersion) == ''">$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Microsoft SDKs\Windows\v10.0@ProductVersion)</_RegistryVersion>\r
- <!-- Sometimes the version in the registry has to .0 suffix, and sometimes it doesn't. Check and add it -->\r
- <_RegistryVersion Condition="$(_RegistryVersion) != '' and !$(_RegistryVersion.EndsWith('.0'))">$(_RegistryVersion).0</_RegistryVersion>\r
-\r
- <!-- The minimum allowed SDK version to use for building -->\r
- <DefaultWindowsSDKVersion>10.0.10586.0</DefaultWindowsSDKVersion>\r
- <DefaultWindowsSDKVersion Condition="$(_RegistryVersion) != '' and $([System.Version]::Parse($(_RegistryVersion))) > $([System.Version]::Parse($(DefaultWindowsSDKVersion)))">$(_RegistryVersion)</DefaultWindowsSDKVersion>\r
- </PropertyGroup>\r
-\r
- <Target Name="_CheckWindowsSDKFound" BeforeTargets="_CheckWindowsSDKInstalled" Condition="$(_RegistryVersion) == ''">\r
- <PropertyGroup>\r
- <_Message>Failed to locate a Windows SDK installation.</_Message>\r
- <_Message>$(_Message) If the build fails, please use the Visual Studio Installer to install the Windows SDK.</_Message>\r
- <_Message>$(_Message) (Ignore the version number specified in the error message and select the latest.)</_Message>\r
- </PropertyGroup>\r
- <Warning Text="$(_Message)" />\r
- </Target>\r
-\r
- <PropertyGroup Condition="$(WindowsTargetPlatformVersion) == ''">\r
- <WindowsTargetPlatformVersion>$(DefaultWindowsSDKVersion)</WindowsTargetPlatformVersion>\r
- </PropertyGroup>\r
-\r
- <PropertyGroup Condition="'$(OverrideVersion)' == ''">\r
- <!--\r
- Read version information from Include\patchlevel.h. The following properties are set:\r
- \r
- MajorVersionNumber - the '3' in '3.5.2a1'\r
- MinorVersionNumber - the '5' in '3.5.2a1'\r
- MicroVersionNumber - the '2' in '3.5.2a1'\r
- ReleaseSerial - the '1' in '3.5.2a1'\r
- ReleaseLevelName - the 'a1' in '3.5.2a1'\r
- PythonVersionNumber - '3.5.2' for '3.5.2a1'\r
- PythonVersion - '3.5.2a1'\r
- PythonVersionHex - 0x030502a1 for '3.5.2a1'\r
- ReleaseLevelNumber - 10 for alpha, 11 for beta, 12 for RC (gamma), and 15 for final\r
- Field3Value - 2101 for '3.5.2a1' (== 1000*2 + 10*10 ('a') + 1)\r
- -->\r
- <_PatchLevelContent>$([System.IO.File]::ReadAllText(`$(PySourcePath)Include\patchlevel.h`))</_PatchLevelContent>\r
- <MajorVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_MAJOR_VERSION\s+(\d+)`).Groups[1].Value)</MajorVersionNumber>\r
- <MinorVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_MINOR_VERSION\s+(\d+)`).Groups[1].Value)</MinorVersionNumber>\r
- <MicroVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_MICRO_VERSION\s+(\d+)`).Groups[1].Value)</MicroVersionNumber>\r
- <_ReleaseLevel>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_RELEASE_LEVEL\s+PY_RELEASE_LEVEL_(\w+)`).Groups[1].Value)</_ReleaseLevel>\r
- <ReleaseSerial>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_RELEASE_SERIAL\s+(\d+)`).Groups[1].Value)</ReleaseSerial>\r
- <ReleaseLevelNumber>15</ReleaseLevelNumber>\r
- <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'ALPHA'">10</ReleaseLevelNumber>\r
- <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'BETA'">11</ReleaseLevelNumber>\r
- <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'GAMMA'">12</ReleaseLevelNumber>\r
- <ReleaseLevelName Condition="$(_ReleaseLevel) == 'ALPHA'">a$(ReleaseSerial)</ReleaseLevelName>\r
- <ReleaseLevelName Condition="$(_ReleaseLevel) == 'BETA'">b$(ReleaseSerial)</ReleaseLevelName>\r
- <ReleaseLevelName Condition="$(_ReleaseLevel) == 'GAMMA'">rc$(ReleaseSerial)</ReleaseLevelName>\r
- </PropertyGroup>\r
- \r
- <PropertyGroup Condition="'$(OverrideVersion)' != ''">\r
- <!--\r
- Override the version number when building by specifying OverrideVersion.\r
- For example:\r
- \r
- PCbuild\build.bat "/p:OverrideVersion=3.5.2a1"\r
- \r
- Use the -V option to check your version is valid:\r
- \r
- PCbuild\build.bat -V "/p:OverrideVersion=3.5.2a1"\r
- PythonVersionNumber: 3.5.2\r
- PythonVersion: 3.5.2a1\r
- PythonVersionHex: 0x030502A1\r
- Field3Value: 2101\r
- \r
- Note that this only affects the version numbers embedded in resources and\r
- installers, but not sys.version.\r
- -->\r
- <MajorVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[1].Value)</MajorVersionNumber>\r
- <MinorVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[2].Value)</MinorVersionNumber>\r
- <MicroVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[3].Value)</MicroVersionNumber>\r
- <ReleaseLevelName>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[4].Value)</ReleaseLevelName>\r
- <_ReleaseLevel>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[5].Value)</_ReleaseLevel>\r
- <ReleaseSerial>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[6].Value)</ReleaseSerial>\r
- <ReleaseSerial Condition="'$(ReleaseSerial)' == ''">0</ReleaseSerial>\r
- <ReleaseLevelNumber>15</ReleaseLevelNumber>\r
- <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'a'">10</ReleaseLevelNumber>\r
- <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'b'">11</ReleaseLevelNumber>\r
- <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'rc'">12</ReleaseLevelNumber>\r
- </PropertyGroup>\r
-\r
- <PropertyGroup>\r
- <PythonVersionNumber>$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)</PythonVersionNumber>\r
- <PythonVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)$(ReleaseLevelName)</PythonVersion>\r
- <PythonVersionHex>$([msbuild]::BitwiseOr(\r
- $([msbuild]::Multiply($(MajorVersionNumber), 16777216)),\r
- $([msbuild]::BitwiseOr(\r
- $([msbuild]::Multiply($(MinorVersionNumber), 65536)),\r
- $([msbuild]::BitwiseOr(\r
- $([msbuild]::Multiply($(MicroVersionNumber), 256)),\r
- $([msbuild]::BitwiseOr(\r
- $([msbuild]::Multiply($(ReleaseLevelNumber), 16)),\r
- $(ReleaseSerial)\r
- ))\r
- ))\r
- ))\r
- ))</PythonVersionHex>\r
- <Field3Value>$([msbuild]::Add(\r
- $(ReleaseSerial),\r
- $([msbuild]::Add(\r
- $([msbuild]::Multiply($(ReleaseLevelNumber), 10)),\r
- $([msbuild]::Multiply($(MicroVersionNumber), 1000))\r
- ))\r
- ))</Field3Value>\r
- <Field3Value Condition="$(UseTestMarker) == 'true'">$([msbuild]::Add($(Field3Value), 9000))</Field3Value>\r
- \r
- <!-- The name of the resulting pythonXY.dll (without the extension) -->\r
- <PyDllName>python$(MajorVersionNumber)$(MinorVersionNumber)$(PyDebugExt)</PyDllName>\r
- <!-- The name of the resulting pythonX.dll (without the extension) -->\r
- <Py3DllName>python3$(PyDebugExt)</Py3DllName>\r
-\r
- <!-- The version and platform tag to include in .pyd filenames -->\r
- <PydTag Condition="$(ArchName) == 'win32'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win32</PydTag>\r
- <PydTag Condition="$(ArchName) == 'arm32'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win_arm32</PydTag>\r
- <PydTag Condition="$(ArchName) == 'arm64'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win_arm64</PydTag>\r
- <PydTag Condition="$(ArchName) == 'amd64'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win_amd64</PydTag>\r
- \r
- <!-- The version number for sys.winver -->\r
- <SysWinVer>$(MajorVersionNumber).$(MinorVersionNumber)$(PyArchExt)$(PyTestExt)</SysWinVer>\r
- </PropertyGroup>\r
- \r
- <!-- Displays the calculated version info -->\r
- <Target Name="ShowVersionInfo">\r
- <Message Importance="high" Text="PythonVersionNumber: $(PythonVersionNumber)" />\r
- <Message Importance="high" Text="PythonVersion: $(PythonVersion)" />\r
- <Message Importance="high" Text="PythonVersionHex: 0x$([System.UInt32]::Parse($(PythonVersionHex)).ToString(`X08`))" />\r
- <Message Importance="high" Text="PythonVersionUnique: $(MajorVersionNumber).$(MinorVersionNumber).$(Field3Value)" />\r
- <Message Importance="high" Text="Field3Value: $(Field3Value)" />\r
- <Message Importance="high" Text="SysWinVer: $(SysWinVer)" />\r
- <Message Importance="high" Text="PyDllName: $(PyDllName)" />\r
- <Message Importance="high" Text="WindowsSdkVersion: $(TargetPlatformVersion)" />\r
- </Target>\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <PropertyGroup>
+ <__Python_Props_Imported>true</__Python_Props_Imported>
+ <Platform Condition="'$(Platform)' == ''">Win32</Platform>
+ <Configuration Condition="'$(Configuration)' == ''">Release</Configuration>
+ <!--
+ Use the latest available version of Visual Studio to build. To override
+ this and build with an earlier version, pass "/p:PlatformToolset=v100"
+ (for example) when building.
+
+ We set BasePlatformToolset for ICC's benefit, it's otherwise ignored.
+ -->
+ <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VisualStudioVersion)' == '17.0'">v143</BasePlatformToolset>
+ <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VisualStudioVersion)' == '16.0'">v142</BasePlatformToolset>
+ <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and ('$(MSBuildToolsVersion)' == '15.0' or '$(VisualStudioVersion)' == '15.0')">v141</BasePlatformToolset>
+ <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VCTargetsPath14)' != ''">v140</BasePlatformToolset>
+ <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VCTargetsPath12)' != ''">v120</BasePlatformToolset>
+ <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VCTargetsPath11)' != ''">v110</BasePlatformToolset>
+ <BasePlatformToolset Condition="'$(BasePlatformToolset)' == '' and '$(VCTargetsPath10)' != ''">v100</BasePlatformToolset>
+
+ <PlatformToolset Condition="'$(PlatformToolset)' == ''">$(BasePlatformToolset)</PlatformToolset>
+ <ICCBuild>false</ICCBuild>
+ <ICCBuild Condition="$(PlatformToolset.StartsWith(`Intel C++ Compiler`))">true</ICCBuild>
+
+ <!--
+ Convincing MSVC/MSBuild to prefer our platform names is too difficult,
+ so we define our own constant ArchName and use wherever we need it.
+ -->
+ <ArchName Condition="'$(ArchName)' == '' and $(Platform) == 'x64'">amd64</ArchName>
+ <ArchName Condition="'$(ArchName)' == '' and $(Platform) == 'ARM'">arm32</ArchName>
+ <ArchName Condition="'$(ArchName)' == '' and $(Platform) == 'ARM64'">arm64</ArchName>
+ <ArchName Condition="'$(ArchName)' == ''">win32</ArchName>
+
+ <!-- Root directory of the repository -->
+ <PySourcePath Condition="'$(PySourcePath)' == ''">$([System.IO.Path]::GetFullPath($(MSBuildThisFileDirectory)\..\))</PySourcePath>
+ <PySourcePath Condition="!HasTrailingSlash($(PySourcePath))">$(PySourcePath)\</PySourcePath>
+
+ <!-- Directory where build outputs are put -->
+ <BuildPath32 Condition="'$(Py_OutDir)' == ''">$(PySourcePath)PCbuild\win32\</BuildPath32>
+ <BuildPath32 Condition="'$(Py_OutDir)' != ''">$(Py_OutDir)\win32\</BuildPath32>
+ <BuildPath64 Condition="'$(Py_OutDir)' == ''">$(PySourcePath)PCbuild\amd64\</BuildPath64>
+ <BuildPath64 Condition="'$(Py_OutDir)' != ''">$(Py_OutDir)\amd64\</BuildPath64>
+ <BuildPathArm32 Condition="'$(Py_OutDir)' == ''">$(PySourcePath)PCbuild\arm32\</BuildPathArm32>
+ <BuildPathArm32 Condition="'$(Py_OutDir)' != ''">$(Py_OutDir)\arm32\</BuildPathArm32>
+ <BuildPathArm64 Condition="'$(Py_OutDir)' == ''">$(PySourcePath)PCbuild\arm64\</BuildPathArm64>
+ <BuildPathArm64 Condition="'$(Py_OutDir)' != ''">$(Py_OutDir)\arm64\</BuildPathArm64>
+ <BuildPath Condition="'$(ArchName)' == 'win32'">$(BuildPath32)</BuildPath>
+ <BuildPath Condition="'$(ArchName)' == 'amd64'">$(BuildPath64)</BuildPath>
+ <BuildPath Condition="'$(ArchName)' == 'arm32'">$(BuildPathArm32)</BuildPath>
+ <BuildPath Condition="'$(ArchName)' == 'arm64'">$(BuildPathArm64)</BuildPath>
+ <BuildPath Condition="'$(BuildPath)' == ''">$(PySourcePath)PCbuild\$(ArchName)\</BuildPath>
+ <BuildPath Condition="!HasTrailingSlash($(BuildPath))">$(BuildPath)\</BuildPath>
+ <BuildPath Condition="$(Configuration) == 'PGInstrument'">$(BuildPath)instrumented\</BuildPath>
+
+ <!-- VPATH definition (escaped) -->
+ <PyVPath Condition="$(Configuration) != 'PGInstrument'">..\\..</PyVPath>
+ <PyVPath Condition="$(Configuration) == 'PGInstrument'">..\\..\\..</PyVPath>
+
+ <!-- Directories of external projects. tcltk is handled in tcltk.props -->
+ <ExternalsDir>$(EXTERNALS_DIR)</ExternalsDir>
+ <ExternalsDir Condition="$(ExternalsDir) == ''">$([System.IO.Path]::GetFullPath(`$(PySourcePath)externals`))</ExternalsDir>
+ <ExternalsDir Condition="!HasTrailingSlash($(ExternalsDir))">$(ExternalsDir)\</ExternalsDir>
+ <sqlite3Dir>$(ExternalsDir)sqlite-3.39.4.0\</sqlite3Dir>
+ <bz2Dir>$(ExternalsDir)bzip2-1.0.8\</bz2Dir>
+ <lzmaDir>$(ExternalsDir)xz-5.2.5\</lzmaDir>
+ <libffiDir>$(ExternalsDir)libffi-3.4.3\</libffiDir>
+ <libffiOutDir>$(ExternalsDir)libffi-3.4.3\$(ArchName)\</libffiOutDir>
+ <libffiIncludeDir>$(libffiOutDir)include</libffiIncludeDir>
+ <opensslDir>$(ExternalsDir)openssl-1.1.1q\</opensslDir>
+ <opensslOutDir>$(ExternalsDir)openssl-bin-1.1.1q\$(ArchName)\</opensslOutDir>
+ <opensslIncludeDir>$(opensslOutDir)include</opensslIncludeDir>
+ <nasmDir>$(ExternalsDir)\nasm-2.11.06\</nasmDir>
+ <zlibDir>$(ExternalsDir)\zlib-1.2.13\</zlibDir>
+
+ <!-- Suffix for all binaries when building for debug -->
+ <PyDebugExt Condition="'$(PyDebugExt)' == '' and $(Configuration) == 'Debug'">_d</PyDebugExt>
+
+ <!-- Suffix for versions/keys when building with test markers -->
+ <PyTestExt Condition="$(UseTestMarker) == 'true'">-test</PyTestExt>
+
+ <!-- Suffix for versions/keys when building for particular platforms -->
+ <PyArchExt Condition="'$(ArchName)' == 'win32'">-32</PyArchExt>
+ <PyArchExt Condition="'$(ArchName)' == 'arm32'">-arm32</PyArchExt>
+ <PyArchExt Condition="'$(ArchName)' == 'arm64'">-arm64</PyArchExt>
+
+ <!-- Full path of the resulting python.exe binary -->
+ <PythonExe Condition="'$(PythonExe)' == ''">$(BuildPath)python$(PyDebugExt).exe</PythonExe>
+
+ <!-- Include Tkinter by default -->
+ <IncludeTkinter Condition="'$(IncludeTkinter)' == ''">true</IncludeTkinter>
+ </PropertyGroup>
+
+ <PropertyGroup Condition="'$(Platform)'=='ARM'" Label="ArmConfiguration">
+ <WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>
+ </PropertyGroup>
+
+ <PropertyGroup Condition="'$(Platform)'=='ARM64'" Label="Arm64Configuration">
+ <WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>
+ </PropertyGroup>
+
+ <PropertyGroup Condition="$(DefaultWindowsSDKVersion) == ''">
+ <!--
+ Attempt to select the latest installed WinSDK. If we don't find any, then we will
+ let the MSBuild targets determine which one it wants to use (typically the earliest
+ possible version). Since we limit WINVER to Windows 7 anyway, it doesn't really
+ matter which WinSDK version we use.
+ -->
+ <_RegistryVersion>$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v10.0@ProductVersion)</_RegistryVersion>
+ <_RegistryVersion Condition="$(_RegistryVersion) == ''">$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Microsoft SDKs\Windows\v10.0@ProductVersion)</_RegistryVersion>
+ <!-- Sometimes the version in the registry has to .0 suffix, and sometimes it doesn't. Check and add it -->
+ <_RegistryVersion Condition="$(_RegistryVersion) != '' and !$(_RegistryVersion.EndsWith('.0'))">$(_RegistryVersion).0</_RegistryVersion>
+
+ <!-- The minimum allowed SDK version to use for building -->
+ <DefaultWindowsSDKVersion>10.0.10586.0</DefaultWindowsSDKVersion>
+ <DefaultWindowsSDKVersion Condition="$(_RegistryVersion) != '' and $([System.Version]::Parse($(_RegistryVersion))) > $([System.Version]::Parse($(DefaultWindowsSDKVersion)))">$(_RegistryVersion)</DefaultWindowsSDKVersion>
+ </PropertyGroup>
+
+ <Target Name="_CheckWindowsSDKFound" BeforeTargets="_CheckWindowsSDKInstalled" Condition="$(_RegistryVersion) == ''">
+ <PropertyGroup>
+ <_Message>Failed to locate a Windows SDK installation.</_Message>
+ <_Message>$(_Message) If the build fails, please use the Visual Studio Installer to install the Windows SDK.</_Message>
+ <_Message>$(_Message) (Ignore the version number specified in the error message and select the latest.)</_Message>
+ </PropertyGroup>
+ <Warning Text="$(_Message)" />
+ </Target>
+
+ <PropertyGroup Condition="$(WindowsTargetPlatformVersion) == ''">
+ <WindowsTargetPlatformVersion>$(DefaultWindowsSDKVersion)</WindowsTargetPlatformVersion>
+ </PropertyGroup>
+
+ <PropertyGroup Condition="'$(OverrideVersion)' == ''">
+ <!--
+ Read version information from Include\patchlevel.h. The following properties are set:
+
+ MajorVersionNumber - the '3' in '3.5.2a1'
+ MinorVersionNumber - the '5' in '3.5.2a1'
+ MicroVersionNumber - the '2' in '3.5.2a1'
+ ReleaseSerial - the '1' in '3.5.2a1'
+ ReleaseLevelName - the 'a1' in '3.5.2a1'
+ PythonVersionNumber - '3.5.2' for '3.5.2a1'
+ PythonVersion - '3.5.2a1'
+ PythonVersionHex - 0x030502a1 for '3.5.2a1'
+ ReleaseLevelNumber - 10 for alpha, 11 for beta, 12 for RC (gamma), and 15 for final
+ Field3Value - 2101 for '3.5.2a1' (== 1000*2 + 10*10 ('a') + 1)
+ -->
+ <_PatchLevelContent>$([System.IO.File]::ReadAllText(`$(PySourcePath)Include\patchlevel.h`))</_PatchLevelContent>
+ <MajorVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_MAJOR_VERSION\s+(\d+)`).Groups[1].Value)</MajorVersionNumber>
+ <MinorVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_MINOR_VERSION\s+(\d+)`).Groups[1].Value)</MinorVersionNumber>
+ <MicroVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_MICRO_VERSION\s+(\d+)`).Groups[1].Value)</MicroVersionNumber>
+ <_ReleaseLevel>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_RELEASE_LEVEL\s+PY_RELEASE_LEVEL_(\w+)`).Groups[1].Value)</_ReleaseLevel>
+ <ReleaseSerial>$([System.Text.RegularExpressions.Regex]::Match($(_PatchLevelContent), `define\s+PY_RELEASE_SERIAL\s+(\d+)`).Groups[1].Value)</ReleaseSerial>
+ <ReleaseLevelNumber>15</ReleaseLevelNumber>
+ <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'ALPHA'">10</ReleaseLevelNumber>
+ <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'BETA'">11</ReleaseLevelNumber>
+ <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'GAMMA'">12</ReleaseLevelNumber>
+ <ReleaseLevelName Condition="$(_ReleaseLevel) == 'ALPHA'">a$(ReleaseSerial)</ReleaseLevelName>
+ <ReleaseLevelName Condition="$(_ReleaseLevel) == 'BETA'">b$(ReleaseSerial)</ReleaseLevelName>
+ <ReleaseLevelName Condition="$(_ReleaseLevel) == 'GAMMA'">rc$(ReleaseSerial)</ReleaseLevelName>
+ </PropertyGroup>
+
+ <PropertyGroup Condition="'$(OverrideVersion)' != ''">
+ <!--
+ Override the version number when building by specifying OverrideVersion.
+ For example:
+
+ PCbuild\build.bat "/p:OverrideVersion=3.5.2a1"
+
+ Use the -V option to check your version is valid:
+
+ PCbuild\build.bat -V "/p:OverrideVersion=3.5.2a1"
+ PythonVersionNumber: 3.5.2
+ PythonVersion: 3.5.2a1
+ PythonVersionHex: 0x030502A1
+ Field3Value: 2101
+
+ Note that this only affects the version numbers embedded in resources and
+ installers, but not sys.version.
+ -->
+ <MajorVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[1].Value)</MajorVersionNumber>
+ <MinorVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[2].Value)</MinorVersionNumber>
+ <MicroVersionNumber>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[3].Value)</MicroVersionNumber>
+ <ReleaseLevelName>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[4].Value)</ReleaseLevelName>
+ <_ReleaseLevel>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[5].Value)</_ReleaseLevel>
+ <ReleaseSerial>$([System.Text.RegularExpressions.Regex]::Match($(OverrideVersion), `(\d+)\.(\d+)\.(\d+)((a|b|rc)(\d))?`).Groups[6].Value)</ReleaseSerial>
+ <ReleaseSerial Condition="'$(ReleaseSerial)' == ''">0</ReleaseSerial>
+ <ReleaseLevelNumber>15</ReleaseLevelNumber>
+ <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'a'">10</ReleaseLevelNumber>
+ <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'b'">11</ReleaseLevelNumber>
+ <ReleaseLevelNumber Condition="$(_ReleaseLevel) == 'rc'">12</ReleaseLevelNumber>
+ </PropertyGroup>
+
+ <PropertyGroup>
+ <PythonVersionNumber>$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)</PythonVersionNumber>
+ <PythonVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)$(ReleaseLevelName)</PythonVersion>
+ <PythonVersionHex>$([msbuild]::BitwiseOr(
+ $([msbuild]::Multiply($(MajorVersionNumber), 16777216)),
+ $([msbuild]::BitwiseOr(
+ $([msbuild]::Multiply($(MinorVersionNumber), 65536)),
+ $([msbuild]::BitwiseOr(
+ $([msbuild]::Multiply($(MicroVersionNumber), 256)),
+ $([msbuild]::BitwiseOr(
+ $([msbuild]::Multiply($(ReleaseLevelNumber), 16)),
+ $(ReleaseSerial)
+ ))
+ ))
+ ))
+ ))</PythonVersionHex>
+ <Field3Value>$([msbuild]::Add(
+ $(ReleaseSerial),
+ $([msbuild]::Add(
+ $([msbuild]::Multiply($(ReleaseLevelNumber), 10)),
+ $([msbuild]::Multiply($(MicroVersionNumber), 1000))
+ ))
+ ))</Field3Value>
+ <Field3Value Condition="$(UseTestMarker) == 'true'">$([msbuild]::Add($(Field3Value), 9000))</Field3Value>
+
+ <!-- The name of the resulting pythonXY.dll (without the extension) -->
+ <PyDllName>python$(MajorVersionNumber)$(MinorVersionNumber)$(PyDebugExt)</PyDllName>
+ <!-- The name of the resulting pythonX.dll (without the extension) -->
+ <Py3DllName>python3$(PyDebugExt)</Py3DllName>
+
+ <!-- The version and platform tag to include in .pyd filenames -->
+ <PydTag Condition="$(ArchName) == 'win32'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win32</PydTag>
+ <PydTag Condition="$(ArchName) == 'arm32'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win_arm32</PydTag>
+ <PydTag Condition="$(ArchName) == 'arm64'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win_arm64</PydTag>
+ <PydTag Condition="$(ArchName) == 'amd64'">.cp$(MajorVersionNumber)$(MinorVersionNumber)-win_amd64</PydTag>
+
+ <!-- The version number for sys.winver -->
+ <SysWinVer>$(MajorVersionNumber).$(MinorVersionNumber)$(PyArchExt)$(PyTestExt)</SysWinVer>
+ </PropertyGroup>
+
+ <!-- Displays the calculated version info -->
+ <Target Name="ShowVersionInfo">
+ <Message Importance="high" Text="PythonVersionNumber: $(PythonVersionNumber)" />
+ <Message Importance="high" Text="PythonVersion: $(PythonVersion)" />
+ <Message Importance="high" Text="PythonVersionHex: 0x$([System.UInt32]::Parse($(PythonVersionHex)).ToString(`X08`))" />
+ <Message Importance="high" Text="PythonVersionUnique: $(MajorVersionNumber).$(MinorVersionNumber).$(Field3Value)" />
+ <Message Importance="high" Text="Field3Value: $(Field3Value)" />
+ <Message Importance="high" Text="SysWinVer: $(SysWinVer)" />
+ <Message Importance="high" Text="PyDllName: $(PyDllName)" />
+ <Message Importance="high" Text="WindowsSdkVersion: $(TargetPlatformVersion)" />
+ </Target>
+</Project>
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|ARM">\r
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- <ProjectConfiguration Include="Debug|ARM64">\r
- <Configuration>Debug</Configuration>\r
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- <ProjectConfiguration Include="Debug|Win32">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|x64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|ARM">\r
- <Configuration>PGInstrument</Configuration>\r
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- </ProjectConfiguration>\r
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- <Configuration>PGInstrument</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|Win32">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|x64">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|ARM">\r
- <Configuration>PGUpdate</Configuration>\r
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- <ProjectConfiguration Include="PGUpdate|ARM64">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|Win32">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|x64">\r
- <Configuration>PGUpdate</Configuration>\r
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- <Configuration>Release</Configuration>\r
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- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|Win32">\r
- <Configuration>Release</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|x64">\r
- <Configuration>Release</Configuration>\r
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- <Import Project="python.props" />\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />\r
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- <ConfigurationType>Application</ConfigurationType>\r
- <UseOfMfc>false</UseOfMfc>\r
- <CharacterSet>MultiByte</CharacterSet>\r
- </PropertyGroup>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />\r
- <ImportGroup Label="ExtensionSettings">\r
- </ImportGroup>\r
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- <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />\r
- <Import Project="pyproject.props" />\r
- <Import Project="tcltk.props" />\r
- </ImportGroup>\r
- <PropertyGroup Label="UserMacros" />\r
- <PropertyGroup>\r
- <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>\r
- </PropertyGroup>\r
- <ItemDefinitionGroup>\r
- <ClCompile>\r
- <PreprocessorDefinitions>Py_BUILD_CORE;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>\r
- </ClCompile>\r
- <Link>\r
- <SubSystem>Console</SubSystem>\r
- <StackReserveSize Condition="$(Configuration) != 'Debug'">2000000</StackReserveSize>\r
- <StackReserveSize Condition="$(Configuration) == 'Debug'">4000000</StackReserveSize>\r
- </Link>\r
- </ItemDefinitionGroup>\r
- <ItemGroup>\r
- <None Include="..\PC\pycon.ico" />\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ResourceCompile Include="..\PC\python_exe.rc" />\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ClCompile Include="..\Programs\python.c" />\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ProjectReference Include="pythoncore.vcxproj">\r
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- <Target Name="_TriggerPostRegen" AfterTargets="Build" DependsOnTargets="PostBuildRegen" />\r
- <Target Name="GeneratePyBuildDirTxt" AfterTargets="Link">\r
- <Message Text="Generating $(OutDir)pybuilddir.txt" />\r
- <WriteLinesToFile File="$(OutDir)pybuilddir.txt" Lines="%0D%0A" Overwrite="true" />\r
- </Target>\r
- <Target Name="ValidateUcrtbase" AfterTargets="AfterBuild" Condition="$(Configuration) != 'PGInstrument' and $(Platform) != 'ARM' and $(Platform) != 'ARM64'">\r
- <PropertyGroup>\r
- <UcrtName>ucrtbase</UcrtName>\r
- <UcrtName Condition="'$(Configuration)' == 'Debug'">ucrtbased</UcrtName>\r
- </PropertyGroup>\r
- <Exec Command='setlocal\r
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- </Target>\r
- <Target Name="GeneratePythonBat" AfterTargets="AfterBuild">\r
- <PropertyGroup>\r
- <_Content>@rem This script invokes the most recently built Python with all arguments\r
-@rem passed through to the interpreter. This file is generated by the\r
-@rem build process and any changes *will* be thrown away by the next\r
-@rem rebuild.\r
-@rem This is only meant as a convenience for developing CPython\r
-@rem and using it outside of that context is ill-advised.\r
-@echo Running $(Configuration)^|$(Platform) interpreter...\r
-@setlocal\r
-@set PYTHONHOME=$(PySourcePath)\r
-@"$(OutDir)python$(PyDebugExt).exe" %*\r
-</_Content>\r
- <_ExistingContent Condition="Exists('$(PySourcePath)python.bat')">$([System.IO.File]::ReadAllText('$(PySourcePath)python.bat'))</_ExistingContent>\r
- </PropertyGroup>\r
- <WriteLinesToFile File="$(PySourcePath)python.bat" Lines="$(_Content)" Overwrite="true" Condition="'$(_Content)' != '$(_ExistingContent)'" />\r
- </Target>\r
- <Target Name="CopyPGORT" AfterTargets="Link" Condition="$(Configuration) == 'PGInstrument'">\r
- <ItemGroup>\r
- <_PGORT Include="$(VCToolsInstallDir)bin\Hostx86\x86\pgort140.dll" Condition="$(Platform) == 'Win32'" />\r
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- </ItemGroup>\r
- <Warning Text="Unable to locate pgort140.dll for $(Platform)." Condition="@(_PGORT) == '' or !Exists(@(_PGORT))" />\r
- <Copy SourceFiles="@(_PGORT)" DestinationFolder="$(OutDir)">\r
- <Output TaskParameter="CopiedFiles" ItemName="FileWrites" />\r
- </Copy>\r
- </Target>\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Debug|ARM">
+ <Configuration>Debug</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|ARM64">
+ <Configuration>Debug</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|Win32">
+ <Configuration>Debug</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|x64">
+ <Configuration>Debug</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|ARM">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|ARM64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|Win32">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|x64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|ARM">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|ARM64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|Win32">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|x64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM">
+ <Configuration>Release</Configuration>
+ <Platform>ARM</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM64">
+ <Configuration>Release</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|x64">
+ <Configuration>Release</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+ <ProjectGuid>{B11D750F-CD1F-4A96-85CE-E69A5C5259F9}</ProjectGuid>
+ </PropertyGroup>
+ <Import Project="python.props" />
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+ <PropertyGroup Label="Configuration">
+ <ConfigurationType>Application</ConfigurationType>
+ <UseOfMfc>false</UseOfMfc>
+ <CharacterSet>MultiByte</CharacterSet>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ImportGroup Label="ExtensionSettings">
+ </ImportGroup>
+ <ImportGroup Label="PropertySheets">
+ <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+ <Import Project="pyproject.props" />
+ <Import Project="tcltk.props" />
+ </ImportGroup>
+ <PropertyGroup Label="UserMacros" />
+ <PropertyGroup>
+ <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+ </PropertyGroup>
+ <ItemDefinitionGroup>
+ <ClCompile>
+ <PreprocessorDefinitions>Py_BUILD_CORE;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ </ClCompile>
+ <Link>
+ <SubSystem>Console</SubSystem>
+ <StackReserveSize Condition="$(Configuration) != 'Debug'">2000000</StackReserveSize>
+ <StackReserveSize Condition="$(Configuration) == 'Debug'">4000000</StackReserveSize>
+ </Link>
+ </ItemDefinitionGroup>
+ <ItemGroup>
+ <None Include="..\PC\pycon.ico" />
+ </ItemGroup>
+ <ItemGroup>
+ <ResourceCompile Include="..\PC\python_exe.rc" />
+ </ItemGroup>
+ <ItemGroup>
+ <ClCompile Include="..\Programs\python.c" />
+ </ItemGroup>
+ <ItemGroup>
+ <ProjectReference Include="pythoncore.vcxproj">
+ <Project>{cf7ac3d1-e2df-41d2-bea6-1e2556cdea26}</Project>
+ <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+ </ProjectReference>
+ </ItemGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+ <ImportGroup Label="ExtensionTargets">
+ <Import Project="regen.targets" />
+ </ImportGroup>
+ <Target Name="_TriggerPostRegen" AfterTargets="Build" DependsOnTargets="PostBuildRegen" />
+ <Target Name="GeneratePyBuildDirTxt" AfterTargets="Link">
+ <Message Text="Generating $(OutDir)pybuilddir.txt" />
+ <WriteLinesToFile File="$(OutDir)pybuilddir.txt" Lines="%0D%0A" Overwrite="true" />
+ </Target>
+ <Target Name="ValidateUcrtbase" AfterTargets="AfterBuild" Condition="$(Configuration) != 'PGInstrument' and $(Platform) != 'ARM' and $(Platform) != 'ARM64'">
+ <PropertyGroup>
+ <UcrtName>ucrtbase</UcrtName>
+ <UcrtName Condition="'$(Configuration)' == 'Debug'">ucrtbased</UcrtName>
+ </PropertyGroup>
+ <Exec Command='setlocal
+set PYTHONPATH=$(PySourcePath)Lib
+"$(OutDir)python$(PyDebugExt).exe" "$(PySourcePath)PC\validate_ucrtbase.py" $(UcrtName)' ContinueOnError="true" />
+ </Target>
+ <Target Name="GeneratePythonBat" AfterTargets="AfterBuild">
+ <PropertyGroup>
+ <_Content>@rem This script invokes the most recently built Python with all arguments
+@rem passed through to the interpreter. This file is generated by the
+@rem build process and any changes *will* be thrown away by the next
+@rem rebuild.
+@rem This is only meant as a convenience for developing CPython
+@rem and using it outside of that context is ill-advised.
+@echo Running $(Configuration)^|$(Platform) interpreter...
+@setlocal
+@set PYTHONHOME=$(PySourcePath)
+@"$(OutDir)python$(PyDebugExt).exe" %*
+</_Content>
+ <_ExistingContent Condition="Exists('$(PySourcePath)python.bat')">$([System.IO.File]::ReadAllText('$(PySourcePath)python.bat'))</_ExistingContent>
+ </PropertyGroup>
+ <WriteLinesToFile File="$(PySourcePath)python.bat" Lines="$(_Content)" Overwrite="true" Condition="'$(_Content)' != '$(_ExistingContent)'" />
+ </Target>
+ <Target Name="CopyPGORT" AfterTargets="Link" Condition="$(Configuration) == 'PGInstrument'">
+ <ItemGroup>
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+ <_PGORT Include="$(VCToolsInstallDir)bin\Hostx64\x64\pgort140.dll" Condition="$(Platform) == 'x64'" />
+ <_PGORT Include="$(VCToolsInstallDir)bin\arm64\pgort140.dll" Condition="$(Platform) == 'ARM64'" />
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+ <Warning Text="Unable to locate pgort140.dll for $(Platform)." Condition="@(_PGORT) == '' or !Exists(@(_PGORT))" />
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+ </Copy>
+ </Target>
+</Project>
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\ No newline at end of file
-Quick Start Guide\r
------------------\r
-\r
-1. Install Microsoft Visual Studio 2017 with Python workload and\r
- Python native development component.\r
-1a. Optionally install Python 3.6 or later. If not installed,\r
- get_externals.bat (via build.bat) will download and use Python via\r
- NuGet.\r
-2. Run "build.bat" to build Python in 32-bit Release configuration.\r
-3. (Optional, but recommended) Run the test suite with "rt.bat -q".\r
-\r
-\r
-Building Python using Microsoft Visual C++\r
-------------------------------------------\r
-\r
-This directory is used to build CPython for Microsoft Windows on 32- and 64-\r
-bit platforms. Using this directory requires an installation of\r
-Microsoft Visual Studio (MSVC) with the *Python workload* and\r
-its optional *Python native development* component selected.\r
-\r
-Building from the command line is recommended in order to obtain any\r
-external dependencies. To build, simply run the "build.bat" script without\r
-any arguments. After this succeeds, you can open the "pcbuild.sln"\r
-solution in Visual Studio to continue development.\r
-\r
-To build an installer package, refer to the README in the Tools/msi folder.\r
-\r
-The solution currently supports two platforms. The Win32 platform is\r
-used to build standard x86-compatible 32-bit binaries, output into the\r
-win32 sub-directory. The x64 platform is used for building 64-bit AMD64\r
-(aka x86_64 or EM64T) binaries, output into the amd64 sub-directory.\r
-The Itanium (IA-64) platform is no longer supported.\r
-\r
-Four configuration options are supported by the solution:\r
-Debug\r
- Used to build Python with extra debugging capabilities, equivalent\r
- to using ./configure --with-pydebug on UNIX. All binaries built\r
- using this configuration have "_d" added to their name:\r
- python310_d.dll, python_d.exe, parser_d.pyd, and so on. Both the\r
- build and rt (run test) batch files in this directory accept a -d\r
- option for debug builds. If you are building Python to help with\r
- development of CPython, you will most likely use this configuration.\r
-PGInstrument, PGUpdate\r
- Used to build Python in Release configuration using PGO, which\r
- requires Premium Edition of Visual Studio. See the "Profile\r
- Guided Optimization" section below for more information. Build\r
- output from each of these configurations lands in its own\r
- sub-directory of this directory. The official Python releases may\r
- be built using these configurations.\r
-Release\r
- Used to build Python as it is meant to be used in production\r
- settings, though without PGO.\r
-\r
-\r
-Building Python using the build.bat script\r
-----------------------------------------------\r
-\r
-In this directory you can find build.bat, a script designed to make\r
-building Python on Windows simpler. This script will use the env.bat\r
-script to detect either Visual Studio 2017 or 2015, either of\r
-which may be used to build Python. Currently Visual Studio 2017 is\r
-officially supported.\r
-\r
-By default, build.bat will build Python in Release configuration for\r
-the 32-bit Win32 platform. It accepts several arguments to change\r
-this behavior, try `build.bat -h` to learn more.\r
-\r
-\r
-C Runtime\r
----------\r
-\r
-Visual Studio 2017 uses version 14.0 of the C runtime (vcruntime140).\r
-The executables no longer use the "Side by Side" assemblies used in\r
-previous versions of the compiler. This simplifies distribution of\r
-applications.\r
-\r
-The run time libraries are available under the redist folder of your\r
-Visual Studio distribution. For more info, see the Readme in the\r
-redist folder.\r
-\r
-\r
-Sub-Projects\r
-------------\r
-\r
-The CPython project is split up into several smaller sub-projects which\r
-are managed by the pcbuild.sln solution file. Each sub-project is\r
-represented by a .vcxproj and a .vcxproj.filters file starting with the\r
-name of the sub-project. These sub-projects fall into a few general\r
-categories:\r
-\r
-The following sub-projects represent the bare minimum required to build\r
-a functioning CPython interpreter. If nothing else builds but these,\r
-you'll have a very limited but usable python.exe:\r
-pythoncore\r
- .dll and .lib\r
-python\r
- .exe\r
-\r
-These sub-projects provide extra executables that are useful for running\r
-CPython in different ways:\r
-pythonw\r
- pythonw.exe, a variant of python.exe that doesn't open a Command\r
- Prompt window\r
-pylauncher\r
- py.exe, the Python Launcher for Windows, see\r
- https://docs.python.org/3/using/windows.html#launcher\r
-pywlauncher\r
- pyw.exe, a variant of py.exe that doesn't open a Command Prompt\r
- window\r
-_testembed\r
- _testembed.exe, a small program that embeds Python for testing\r
- purposes, used by test_capi.py\r
-\r
-These are miscellaneous sub-projects that don't really fit the other\r
-categories:\r
-_freeze_module\r
- _freeze_module.exe, used to regenerate frozen modules in Python\r
- after changes have been made to the corresponding source files\r
- (e.g. Lib\importlib\_bootstrap.py).\r
-pyshellext\r
- pyshellext.dll, the shell extension deployed with the launcher\r
-python3dll\r
- python3.dll, the PEP 384 Stable ABI dll\r
-xxlimited\r
- builds an example module that makes use of the PEP 384 Stable ABI,\r
- see Modules\xxlimited.c\r
-xxlimited_35\r
- ditto for testing the Python 3.5 stable ABI, see\r
- Modules\xxlimited_35.c\r
-\r
-The following sub-projects are for individual modules of the standard\r
-library which are implemented in C; each one builds a DLL (renamed to\r
-.pyd) of the same name as the project:\r
-_asyncio\r
-_ctypes\r
-_ctypes_test\r
-_zoneinfo\r
-_decimal\r
-_elementtree\r
-_hashlib\r
-_msi\r
-_multiprocessing\r
-_overlapped\r
-_socket\r
-_testbuffer\r
-_testcapi\r
-_testconsole\r
-_testimportmultiple\r
-_testmultiphase\r
-_tkinter\r
-pyexpat\r
-select\r
-unicodedata\r
-winsound\r
-\r
-The following Python-controlled sub-projects wrap external projects.\r
-Note that these external libraries are not necessary for a working\r
-interpreter, but they do implement several major features. See the\r
-"Getting External Sources" section below for additional information\r
-about getting the source for building these libraries. The sub-projects\r
-are:\r
-_bz2\r
- Python wrapper for version 1.0.8 of the libbzip2 compression library\r
- Homepage:\r
- http://www.bzip.org/\r
-_lzma\r
- Python wrapper for version 5.2.2 of the liblzma compression library\r
- Homepage:\r
- https://tukaani.org/xz/\r
-_ssl\r
- Python wrapper for version 1.1.1q of the OpenSSL secure sockets\r
- library, which is downloaded from our binaries repository at\r
- https://github.com/python/cpython-bin-deps.\r
-\r
- Homepage:\r
- https://www.openssl.org/\r
-\r
- Building OpenSSL requires Perl on your path, and can be performed by\r
- running PCbuild\prepare_ssl.bat. This will retrieve the version of\r
- the sources matched to the current commit from the OpenSSL branch\r
- in our source repository at\r
- https://github.com/python/cpython-source-deps.\r
-\r
- To use an alternative build of OpenSSL completely, you should replace\r
- the files in the externals/openssl-bin-<version> folder with your own.\r
- As long as this folder exists, its contents will not be downloaded\r
- again when building.\r
-\r
-_sqlite3\r
- Wraps SQLite 3.38.4, which is itself built by sqlite3.vcxproj\r
- Homepage:\r
- https://www.sqlite.org/\r
-_tkinter\r
- Wraps version 8.6.6 of the Tk windowing system, which is downloaded\r
- from our binaries repository at\r
- https://github.com/python/cpython-bin-deps.\r
-\r
- Homepage:\r
- https://www.tcl.tk/\r
-\r
- Building Tcl and Tk can be performed by running\r
- PCbuild\prepare_tcltk.bat. This will retrieve the version of the\r
- sources matched to the current commit from the Tcl and Tk branches\r
- in our source repository at\r
- https://github.com/python/cpython-source-deps.\r
-\r
- The two projects install their respective components in a\r
- directory alongside the source directories called "tcltk" on\r
- Win32 and "tcltk64" on x64. They also copy the Tcl and Tk DLLs\r
- into the current output directory, which should ensure that Tkinter\r
- is able to load Tcl/Tk without having to change your PATH.\r
-\r
-\r
-Getting External Sources\r
-------------------------\r
-\r
-The last category of sub-projects listed above wrap external projects\r
-Python doesn't control, and as such a little more work is required in\r
-order to download the relevant source files for each project before they\r
-can be built. However, a simple script is provided to make this as\r
-painless as possible, called "get_externals.bat" and located in this\r
-directory. This script extracts all the external sub-projects from\r
- https://github.com/python/cpython-source-deps\r
-and\r
- https://github.com/python/cpython-bin-deps\r
-via a Python script called "get_external.py", located in this directory.\r
-If Python 3.6 or later is not available via the "py.exe" launcher, the\r
-path or command to use for Python can be provided in the PYTHON_FOR_BUILD\r
-environment variable, or get_externals.bat will download the latest\r
-version of NuGet and use it to download the latest "pythonx86" package\r
-for use with get_external.py. Everything downloaded by these scripts is\r
-stored in ..\externals (relative to this directory).\r
-\r
-It is also possible to download sources from each project's homepage,\r
-though you may have to change folder names or pass the names to MSBuild\r
-as the values of certain properties in order for the build solution to\r
-find them. This is an advanced topic and not necessarily fully\r
-supported.\r
-\r
-The get_externals.bat script is called automatically by build.bat\r
-unless you pass the '-E' option.\r
-\r
-\r
-Profile Guided Optimization\r
----------------------------\r
-\r
-The solution has two configurations for PGO. The PGInstrument\r
-configuration must be built first. The PGInstrument binaries are linked\r
-against a profiling library and contain extra debug information. The\r
-PGUpdate configuration takes the profiling data and generates optimized\r
-binaries.\r
-\r
-The build_pgo.bat script automates the creation of optimized binaries.\r
-It creates the PGI files, runs the unit test suite or PyBench with the\r
-PGI python, and finally creates the optimized files.\r
-\r
-See\r
- https://docs.microsoft.com/en-us/cpp/build/profile-guided-optimizations\r
-for more on this topic.\r
-\r
-\r
-Static library\r
---------------\r
-\r
-The solution has no configuration for static libraries. However it is\r
-easy to build a static library instead of a DLL. You simply have to set\r
-the "Configuration Type" to "Static Library (.lib)" and alter the\r
-preprocessor macro "Py_ENABLE_SHARED" to "Py_NO_ENABLE_SHARED". You may\r
-also have to change the "Runtime Library" from "Multi-threaded DLL\r
-(/MD)" to "Multi-threaded (/MT)".\r
-\r
-\r
-Visual Studio properties\r
-------------------------\r
-\r
-The PCbuild solution makes use of Visual Studio property files (*.props)\r
-to simplify each project. The properties can be viewed in the Property\r
-Manager (View -> Other Windows -> Property Manager) but should be\r
-carefully modified by hand.\r
-\r
-The property files used are:\r
- * python (versions, directories and build names)\r
- * pyproject (base settings for all projects)\r
- * openssl (used by projects dependent upon OpenSSL)\r
- * tcltk (used by _tkinter, tcl, tk and tix projects)\r
-\r
-The pyproject property file defines all of the build settings for each\r
-project, with some projects overriding certain specific values. The GUI\r
-doesn't always reflect the correct settings and may confuse the user\r
-with false information, especially for settings that automatically adapt\r
-for different configurations.\r
+Quick Start Guide
+-----------------
+
+1. Install Microsoft Visual Studio 2017 with Python workload and
+ Python native development component.
+1a. Optionally install Python 3.6 or later. If not installed,
+ get_externals.bat (via build.bat) will download and use Python via
+ NuGet.
+2. Run "build.bat" to build Python in 32-bit Release configuration.
+3. (Optional, but recommended) Run the test suite with "rt.bat -q".
+
+
+Building Python using Microsoft Visual C++
+------------------------------------------
+
+This directory is used to build CPython for Microsoft Windows on 32- and 64-
+bit platforms. Using this directory requires an installation of
+Microsoft Visual Studio (MSVC) with the *Python workload* and
+its optional *Python native development* component selected.
+
+Building from the command line is recommended in order to obtain any
+external dependencies. To build, simply run the "build.bat" script without
+any arguments. After this succeeds, you can open the "pcbuild.sln"
+solution in Visual Studio to continue development.
+
+To build an installer package, refer to the README in the Tools/msi folder.
+
+The solution currently supports two platforms. The Win32 platform is
+used to build standard x86-compatible 32-bit binaries, output into the
+win32 sub-directory. The x64 platform is used for building 64-bit AMD64
+(aka x86_64 or EM64T) binaries, output into the amd64 sub-directory.
+The Itanium (IA-64) platform is no longer supported.
+
+Four configuration options are supported by the solution:
+Debug
+ Used to build Python with extra debugging capabilities, equivalent
+ to using ./configure --with-pydebug on UNIX. All binaries built
+ using this configuration have "_d" added to their name:
+ python310_d.dll, python_d.exe, parser_d.pyd, and so on. Both the
+ build and rt (run test) batch files in this directory accept a -d
+ option for debug builds. If you are building Python to help with
+ development of CPython, you will most likely use this configuration.
+PGInstrument, PGUpdate
+ Used to build Python in Release configuration using PGO, which
+ requires Premium Edition of Visual Studio. See the "Profile
+ Guided Optimization" section below for more information. Build
+ output from each of these configurations lands in its own
+ sub-directory of this directory. The official Python releases may
+ be built using these configurations.
+Release
+ Used to build Python as it is meant to be used in production
+ settings, though without PGO.
+
+
+Building Python using the build.bat script
+----------------------------------------------
+
+In this directory you can find build.bat, a script designed to make
+building Python on Windows simpler. This script will use the env.bat
+script to detect either Visual Studio 2017 or 2015, either of
+which may be used to build Python. Currently Visual Studio 2017 is
+officially supported.
+
+By default, build.bat will build Python in Release configuration for
+the 32-bit Win32 platform. It accepts several arguments to change
+this behavior, try `build.bat -h` to learn more.
+
+
+C Runtime
+---------
+
+Visual Studio 2017 uses version 14.0 of the C runtime (vcruntime140).
+The executables no longer use the "Side by Side" assemblies used in
+previous versions of the compiler. This simplifies distribution of
+applications.
+
+The run time libraries are available under the redist folder of your
+Visual Studio distribution. For more info, see the Readme in the
+redist folder.
+
+
+Sub-Projects
+------------
+
+The CPython project is split up into several smaller sub-projects which
+are managed by the pcbuild.sln solution file. Each sub-project is
+represented by a .vcxproj and a .vcxproj.filters file starting with the
+name of the sub-project. These sub-projects fall into a few general
+categories:
+
+The following sub-projects represent the bare minimum required to build
+a functioning CPython interpreter. If nothing else builds but these,
+you'll have a very limited but usable python.exe:
+pythoncore
+ .dll and .lib
+python
+ .exe
+
+These sub-projects provide extra executables that are useful for running
+CPython in different ways:
+pythonw
+ pythonw.exe, a variant of python.exe that doesn't open a Command
+ Prompt window
+pylauncher
+ py.exe, the Python Launcher for Windows, see
+ https://docs.python.org/3/using/windows.html#launcher
+pywlauncher
+ pyw.exe, a variant of py.exe that doesn't open a Command Prompt
+ window
+_testembed
+ _testembed.exe, a small program that embeds Python for testing
+ purposes, used by test_capi.py
+
+These are miscellaneous sub-projects that don't really fit the other
+categories:
+_freeze_module
+ _freeze_module.exe, used to regenerate frozen modules in Python
+ after changes have been made to the corresponding source files
+ (e.g. Lib\importlib\_bootstrap.py).
+pyshellext
+ pyshellext.dll, the shell extension deployed with the launcher
+python3dll
+ python3.dll, the PEP 384 Stable ABI dll
+xxlimited
+ builds an example module that makes use of the PEP 384 Stable ABI,
+ see Modules\xxlimited.c
+xxlimited_35
+ ditto for testing the Python 3.5 stable ABI, see
+ Modules\xxlimited_35.c
+
+The following sub-projects are for individual modules of the standard
+library which are implemented in C; each one builds a DLL (renamed to
+.pyd) of the same name as the project:
+_asyncio
+_ctypes
+_ctypes_test
+_zoneinfo
+_decimal
+_elementtree
+_hashlib
+_msi
+_multiprocessing
+_overlapped
+_socket
+_testbuffer
+_testcapi
+_testconsole
+_testimportmultiple
+_testmultiphase
+_tkinter
+pyexpat
+select
+unicodedata
+winsound
+
+The following Python-controlled sub-projects wrap external projects.
+Note that these external libraries are not necessary for a working
+interpreter, but they do implement several major features. See the
+"Getting External Sources" section below for additional information
+about getting the source for building these libraries. The sub-projects
+are:
+_bz2
+ Python wrapper for version 1.0.8 of the libbzip2 compression library
+ Homepage:
+ http://www.bzip.org/
+_lzma
+ Python wrapper for version 5.2.2 of the liblzma compression library
+ Homepage:
+ https://tukaani.org/xz/
+_ssl
+ Python wrapper for version 1.1.1q of the OpenSSL secure sockets
+ library, which is downloaded from our binaries repository at
+ https://github.com/python/cpython-bin-deps.
+
+ Homepage:
+ https://www.openssl.org/
+
+ Building OpenSSL requires Perl on your path, and can be performed by
+ running PCbuild\prepare_ssl.bat. This will retrieve the version of
+ the sources matched to the current commit from the OpenSSL branch
+ in our source repository at
+ https://github.com/python/cpython-source-deps.
+
+ To use an alternative build of OpenSSL completely, you should replace
+ the files in the externals/openssl-bin-<version> folder with your own.
+ As long as this folder exists, its contents will not be downloaded
+ again when building.
+
+_sqlite3
+ Wraps SQLite 3.39.4, which is itself built by sqlite3.vcxproj
+ Homepage:
+ https://www.sqlite.org/
+_tkinter
+ Wraps version 8.6.6 of the Tk windowing system, which is downloaded
+ from our binaries repository at
+ https://github.com/python/cpython-bin-deps.
+
+ Homepage:
+ https://www.tcl.tk/
+
+ Building Tcl and Tk can be performed by running
+ PCbuild\prepare_tcltk.bat. This will retrieve the version of the
+ sources matched to the current commit from the Tcl and Tk branches
+ in our source repository at
+ https://github.com/python/cpython-source-deps.
+
+ The two projects install their respective components in a
+ directory alongside the source directories called "tcltk" on
+ Win32 and "tcltk64" on x64. They also copy the Tcl and Tk DLLs
+ into the current output directory, which should ensure that Tkinter
+ is able to load Tcl/Tk without having to change your PATH.
+
+
+Getting External Sources
+------------------------
+
+The last category of sub-projects listed above wrap external projects
+Python doesn't control, and as such a little more work is required in
+order to download the relevant source files for each project before they
+can be built. However, a simple script is provided to make this as
+painless as possible, called "get_externals.bat" and located in this
+directory. This script extracts all the external sub-projects from
+ https://github.com/python/cpython-source-deps
+and
+ https://github.com/python/cpython-bin-deps
+via a Python script called "get_external.py", located in this directory.
+If Python 3.6 or later is not available via the "py.exe" launcher, the
+path or command to use for Python can be provided in the PYTHON_FOR_BUILD
+environment variable, or get_externals.bat will download the latest
+version of NuGet and use it to download the latest "pythonx86" package
+for use with get_external.py. Everything downloaded by these scripts is
+stored in ..\externals (relative to this directory).
+
+It is also possible to download sources from each project's homepage,
+though you may have to change folder names or pass the names to MSBuild
+as the values of certain properties in order for the build solution to
+find them. This is an advanced topic and not necessarily fully
+supported.
+
+The get_externals.bat script is called automatically by build.bat
+unless you pass the '-E' option.
+
+
+Profile Guided Optimization
+---------------------------
+
+The solution has two configurations for PGO. The PGInstrument
+configuration must be built first. The PGInstrument binaries are linked
+against a profiling library and contain extra debug information. The
+PGUpdate configuration takes the profiling data and generates optimized
+binaries.
+
+The build_pgo.bat script automates the creation of optimized binaries.
+It creates the PGI files, runs the unit test suite or PyBench with the
+PGI python, and finally creates the optimized files.
+
+See
+ https://docs.microsoft.com/en-us/cpp/build/profile-guided-optimizations
+for more on this topic.
+
+
+Static library
+--------------
+
+The solution has no configuration for static libraries. However it is
+easy to build a static library instead of a DLL. You simply have to set
+the "Configuration Type" to "Static Library (.lib)" and alter the
+preprocessor macro "Py_ENABLE_SHARED" to "Py_NO_ENABLE_SHARED". You may
+also have to change the "Runtime Library" from "Multi-threaded DLL
+(/MD)" to "Multi-threaded (/MT)".
+
+
+Visual Studio properties
+------------------------
+
+The PCbuild solution makes use of Visual Studio property files (*.props)
+to simplify each project. The properties can be viewed in the Property
+Manager (View -> Other Windows -> Property Manager) but should be
+carefully modified by hand.
+
+The property files used are:
+ * python (versions, directories and build names)
+ * pyproject (base settings for all projects)
+ * openssl (used by projects dependent upon OpenSSL)
+ * tcltk (used by _tkinter, tcl, tk and tix projects)
+
+The pyproject property file defines all of the build settings for each
+project, with some projects overriding certain specific values. The GUI
+doesn't always reflect the correct settings and may confuse the user
+with false information, especially for settings that automatically adapt
+for different configurations.
-@echo off\r
-rem Run Tests. Run the regression test suite.\r
-rem Usage: rt [-d] [-O] [-q] [-x64] regrtest_args\r
-rem -d Run Debug build (python_d.exe). Else release build.\r
-rem -O Run python.exe or python_d.exe (see -d) with -O.\r
-rem -q "quick" -- normally the tests are run twice, the first time\r
-rem after deleting all the .pyc files reachable from Lib/.\r
-rem -q runs the tests just once, and without deleting .pyc files.\r
-rem -p <Win32|x64|ARM|ARM64> or -win32, -x64, -arm32, -arm64\r
-rem Run the specified architecture of python (or python_d if -d\r
-rem was specified). If omitted, uses %PREFIX% if set or 64-bit.\r
-rem All leading instances of these switches are shifted off, and\r
-rem whatever remains (up to 9 arguments) is passed to regrtest.py.\r
-rem For example,\r
-rem rt -O -d -x test_thread\r
-rem runs\r
-rem python_d -O ../lib/test/regrtest.py -x test_thread\r
-rem twice, and\r
-rem rt -q -g test_binascii\r
-rem runs\r
-rem python_d ../lib/test/regrtest.py -g test_binascii\r
-rem to generate the expected-output file for binascii quickly.\r
-rem\r
-rem Confusing: if you want to pass a comma-separated list, like\r
-rem -u network,largefile\r
-rem then you have to quote it on the rt line, like\r
-rem rt -u "network,largefile"\r
-\r
-setlocal\r
-\r
-set pcbuild=%~dp0\r
-set suffix=\r
-set qmode=\r
-set dashO=\r
-set regrtestargs=\r
-set exe=\r
-\r
-:CheckOpts\r
-if "%1"=="-O" (set dashO=-O) & shift & goto CheckOpts\r
-if "%1"=="-q" (set qmode=yes) & shift & goto CheckOpts\r
-if "%1"=="-d" (set suffix=_d) & shift & goto CheckOpts\r
-if "%1"=="-win32" (set prefix=%pcbuild%win32) & shift & goto CheckOpts\r
-if "%1"=="-x64" (set prefix=%pcbuild%amd64) & shift & goto CheckOpts\r
-if "%1"=="-arm64" (set prefix=%pcbuild%arm64) & shift & goto CheckOpts\r
-if "%1"=="-arm32" (set prefix=%pcbuild%arm32) & shift & goto CheckOpts\r
-if "%1"=="-p" (call :SetPlatform %~2) & shift & shift & goto CheckOpts\r
-if NOT "%1"=="" (set regrtestargs=%regrtestargs% %1) & shift & goto CheckOpts\r
-\r
-if not defined prefix set prefix=%pcbuild%amd64\r
-set exe=%prefix%\python%suffix%.exe\r
-set cmd="%exe%" %dashO% -u -Wd -E -bb -m test %regrtestargs%\r
-if defined qmode goto Qmode\r
-\r
-echo Deleting .pyc files ...\r
-"%exe%" "%pcbuild%rmpyc.py"\r
-\r
-echo Cleaning _pth files ...\r
-if exist %prefix%\*._pth del %prefix%\*._pth\r
-\r
-echo on\r
-%cmd%\r
-@echo off\r
-\r
-echo About to run again without deleting .pyc first:\r
-pause\r
-goto Qmode\r
-\r
-:SetPlatform\r
-if /I %1 EQU Win32 (set prefix=%pcbuild%win32) & exit /B 0\r
-if /I %1 EQU x64 (set prefix=%pcbuild%amd64) & exit /B 0\r
-if /I %1 EQU ARM64 (set prefix=%pcbuild%arm64) & exit /B 0\r
-if /I %1 EQU ARM (set prefix=%pcbuild%arm32) & exit /B 0\r
-echo Invalid platform "%1"\r
-exit /B 1\r
-\r
-:Qmode\r
-echo on\r
-%cmd%\r
+@echo off
+rem Run Tests. Run the regression test suite.
+rem Usage: rt [-d] [-O] [-q] [-x64] regrtest_args
+rem -d Run Debug build (python_d.exe). Else release build.
+rem -O Run python.exe or python_d.exe (see -d) with -O.
+rem -q "quick" -- normally the tests are run twice, the first time
+rem after deleting all the .pyc files reachable from Lib/.
+rem -q runs the tests just once, and without deleting .pyc files.
+rem -p <Win32|x64|ARM|ARM64> or -win32, -x64, -arm32, -arm64
+rem Run the specified architecture of python (or python_d if -d
+rem was specified). If omitted, uses %PREFIX% if set or 64-bit.
+rem All leading instances of these switches are shifted off, and
+rem whatever remains (up to 9 arguments) is passed to regrtest.py.
+rem For example,
+rem rt -O -d -x test_thread
+rem runs
+rem python_d -O ../lib/test/regrtest.py -x test_thread
+rem twice, and
+rem rt -q -g test_binascii
+rem runs
+rem python_d ../lib/test/regrtest.py -g test_binascii
+rem to generate the expected-output file for binascii quickly.
+rem
+rem Confusing: if you want to pass a comma-separated list, like
+rem -u network,largefile
+rem then you have to quote it on the rt line, like
+rem rt -u "network,largefile"
+
+setlocal
+
+set pcbuild=%~dp0
+set suffix=
+set qmode=
+set dashO=
+set regrtestargs=
+set exe=
+
+:CheckOpts
+if "%1"=="-O" (set dashO=-O) & shift & goto CheckOpts
+if "%1"=="-q" (set qmode=yes) & shift & goto CheckOpts
+if "%1"=="-d" (set suffix=_d) & shift & goto CheckOpts
+if "%1"=="-win32" (set prefix=%pcbuild%win32) & shift & goto CheckOpts
+if "%1"=="-x64" (set prefix=%pcbuild%amd64) & shift & goto CheckOpts
+if "%1"=="-arm64" (set prefix=%pcbuild%arm64) & shift & goto CheckOpts
+if "%1"=="-arm32" (set prefix=%pcbuild%arm32) & shift & goto CheckOpts
+if "%1"=="-p" (call :SetPlatform %~2) & shift & shift & goto CheckOpts
+if NOT "%1"=="" (set regrtestargs=%regrtestargs% %1) & shift & goto CheckOpts
+
+if not defined prefix set prefix=%pcbuild%amd64
+set exe=%prefix%\python%suffix%.exe
+set cmd="%exe%" %dashO% -u -Wd -E -bb -m test %regrtestargs%
+if defined qmode goto Qmode
+
+echo Deleting .pyc files ...
+"%exe%" "%pcbuild%rmpyc.py"
+
+echo Cleaning _pth files ...
+if exist %prefix%\*._pth del %prefix%\*._pth
+
+echo on
+%cmd%
+@echo off
+
+echo About to run again without deleting .pyc first:
+pause
+goto Qmode
+
+:SetPlatform
+if /I %1 EQU Win32 (set prefix=%pcbuild%win32) & exit /B 0
+if /I %1 EQU x64 (set prefix=%pcbuild%amd64) & exit /B 0
+if /I %1 EQU ARM64 (set prefix=%pcbuild%arm64) & exit /B 0
+if /I %1 EQU ARM (set prefix=%pcbuild%arm32) & exit /B 0
+echo Invalid platform "%1"
+exit /B 1
+
+:Qmode
+echo on
+%cmd%
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- <ItemGroup>\r
- <Filter Include="Header Files">\r
- <UniqueIdentifier>{ce5b649d-a6f7-4459-9425-c883795d79df}</UniqueIdentifier>\r
- </Filter>\r
- <Filter Include="Source Files">\r
- <UniqueIdentifier>{0e842fe2-176b-4e83-9d1f-0ad13a859efd}</UniqueIdentifier>\r
- </Filter>\r
- <Filter Include="Resource Files">\r
- <UniqueIdentifier>{0248795a-00c9-4090-ad61-55ae23438598}</UniqueIdentifier>\r
- </Filter>\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ClInclude Include="$(sqlite3Dir)\sqlite3.h">\r
- <Filter>Header Files</Filter>\r
- </ClInclude>\r
- <ClInclude Include="$(sqlite3Dir)\sqlite3ext.h">\r
- <Filter>Header Files</Filter>\r
- </ClInclude>\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ClCompile Include="$(sqlite3Dir)\sqlite3.c">\r
- <Filter>Source Files</Filter>\r
- </ClCompile>\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ResourceCompile Include="..\PC\sqlite3.rc">\r
- <Filter>Resource Files</Filter>\r
- </ResourceCompile>\r
- </ItemGroup>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup>
+ <Filter Include="Header Files">
+ <UniqueIdentifier>{ce5b649d-a6f7-4459-9425-c883795d79df}</UniqueIdentifier>
+ </Filter>
+ <Filter Include="Source Files">
+ <UniqueIdentifier>{0e842fe2-176b-4e83-9d1f-0ad13a859efd}</UniqueIdentifier>
+ </Filter>
+ <Filter Include="Resource Files">
+ <UniqueIdentifier>{0248795a-00c9-4090-ad61-55ae23438598}</UniqueIdentifier>
+ </Filter>
+ </ItemGroup>
+ <ItemGroup>
+ <ClInclude Include="$(sqlite3Dir)\sqlite3.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ <ClInclude Include="$(sqlite3Dir)\sqlite3ext.h">
+ <Filter>Header Files</Filter>
+ </ClInclude>
+ </ItemGroup>
+ <ItemGroup>
+ <ClCompile Include="$(sqlite3Dir)\sqlite3.c">
+ <Filter>Source Files</Filter>
+ </ClCompile>
+ </ItemGroup>
+ <ItemGroup>
+ <ResourceCompile Include="..\PC\sqlite3.rc">
+ <Filter>Resource Files</Filter>
+ </ResourceCompile>
+ </ItemGroup>
</Project>
\ No newline at end of file
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|Win32">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|Win32">\r
- <Configuration>Release</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|Win32">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|x64">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|Win32">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|x64">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|x64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|x64">\r
- <Configuration>Release</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|ARM64">\r
- <Configuration>Release</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- </ItemGroup>\r
- <PropertyGroup Label="Globals">\r
- <ProjectGuid>{B5FD6F1D-129E-4BFF-9340-03606FAC7283}</ProjectGuid>\r
- </PropertyGroup>\r
-\r
- <Import Project="python.props" />\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />\r
- <Import Project="tcltk.props" />\r
- \r
- <PropertyGroup Label="Configuration">\r
- <ConfigurationType>Makefile</ConfigurationType>\r
- <OutDir>$(tcltkDir)</OutDir>\r
- <TargetPath>$(OutDir)bin\$(tclDLLName)</TargetPath>\r
- </PropertyGroup>\r
- \r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />\r
- \r
- <PropertyGroup>\r
- <TclOpts>msvcrt</TclOpts>\r
- <TclOpts Condition="$(Configuration) == 'Debug'">symbols,msvcrt</TclOpts>\r
- <TclDirs>BUILDDIRTOP="$(BuildDirTop)" INSTALLDIR="$(OutDir.TrimEnd(`\`))" INSTALL_DIR="$(OutDir.TrimEnd(`\`))"</TclDirs>\r
- <DebugFlags Condition="'$(Configuration)' == 'Debug'">DEBUGFLAGS="-wd4456 -wd4457 -wd4458 -wd4459 -wd4996"</DebugFlags>\r
- <WarningsFlags>WARNINGS="-W3 -wd4311 -wd4312"</WarningsFlags>\r
- <NMakeBuildCommandLine>setlocal\r
-set VCINSTALLDIR=$(VCInstallDir)\r
-cd /D "$(tclDir)win"\r
-nmake -f makefile.vc MACHINE=$(TclMachine) OPTS=$(TclOpts) $(TclDirs) $(DebugFlags) $(WarningsFlags) TCLSH_NATIVE="$(tclWin32Exe)" core shell dlls\r
-nmake -f makefile.vc MACHINE=$(TclMachine) OPTS=$(TclOpts) $(TclDirs) $(DebugFlags) $(WarningsFlags) TCLSH_NATIVE="$(tclWin32Exe)" install-binaries install-libraries\r
-copy /Y ..\license.terms "$(OutDir)\tcllicense.terms"\r
-</NMakeBuildCommandLine>\r
- </PropertyGroup>\r
-\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />\r
-\r
- <Target Name="Clean" />\r
- \r
- <Target Name="ResolveAssemblyReferences" />\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Debug|Win32">
+ <Configuration>Debug</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|Win32">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|x64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|Win32">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|x64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|x64">
+ <Configuration>Debug</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|x64">
+ <Configuration>Release</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|ARM64">
+ <Configuration>Release</Configuration>
+ <Platform>ARM64</Platform>
+ </ProjectConfiguration>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+ <ProjectGuid>{B5FD6F1D-129E-4BFF-9340-03606FAC7283}</ProjectGuid>
+ </PropertyGroup>
+
+ <Import Project="python.props" />
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+ <Import Project="tcltk.props" />
+
+ <PropertyGroup Label="Configuration">
+ <ConfigurationType>Makefile</ConfigurationType>
+ <OutDir>$(tcltkDir)</OutDir>
+ <TargetPath>$(OutDir)bin\$(tclDLLName)</TargetPath>
+ </PropertyGroup>
+
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+
+ <PropertyGroup>
+ <TclOpts>msvcrt</TclOpts>
+ <TclOpts Condition="$(Configuration) == 'Debug'">symbols,msvcrt</TclOpts>
+ <TclDirs>BUILDDIRTOP="$(BuildDirTop)" INSTALLDIR="$(OutDir.TrimEnd(`\`))" INSTALL_DIR="$(OutDir.TrimEnd(`\`))"</TclDirs>
+ <DebugFlags Condition="'$(Configuration)' == 'Debug'">DEBUGFLAGS="-wd4456 -wd4457 -wd4458 -wd4459 -wd4996"</DebugFlags>
+ <WarningsFlags>WARNINGS="-W3 -wd4311 -wd4312"</WarningsFlags>
+ <NMakeBuildCommandLine>setlocal
+set VCINSTALLDIR=$(VCInstallDir)
+cd /D "$(tclDir)win"
+nmake -f makefile.vc MACHINE=$(TclMachine) OPTS=$(TclOpts) $(TclDirs) $(DebugFlags) $(WarningsFlags) TCLSH_NATIVE="$(tclWin32Exe)" core shell dlls
+nmake -f makefile.vc MACHINE=$(TclMachine) OPTS=$(TclOpts) $(TclDirs) $(DebugFlags) $(WarningsFlags) TCLSH_NATIVE="$(tclWin32Exe)" install-binaries install-libraries
+copy /Y ..\license.terms "$(OutDir)\tcllicense.terms"
+</NMakeBuildCommandLine>
+ </PropertyGroup>
+
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+
+ <Target Name="Clean" />
+
+ <Target Name="ResolveAssemblyReferences" />
</Project>
\ No newline at end of file
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <Import Project="pyproject.props" Condition="$(__PyProject_Props_Imported) != 'true'" />\r
- <PropertyGroup>\r
- <TclMajorVersion>8</TclMajorVersion>\r
- <TclMinorVersion>6</TclMinorVersion>\r
- <TclPatchLevel>12</TclPatchLevel>\r
- <TclRevision>1</TclRevision>\r
- <TkMajorVersion>$(TclMajorVersion)</TkMajorVersion>\r
- <TkMinorVersion>$(TclMinorVersion)</TkMinorVersion>\r
- <TkPatchLevel>$(TclPatchLevel)</TkPatchLevel>\r
- <TkRevision>$(TclRevision)</TkRevision>\r
- <TixMajorVersion>8</TixMajorVersion>\r
- <TixMinorVersion>4</TixMinorVersion>\r
- <TixPatchLevel>3</TixPatchLevel>\r
- <TixRevision>6</TixRevision>\r
- <tclDir>$(ExternalsDir)tcl-core-$(TclMajorVersion).$(TclMinorVersion).$(TclPatchLevel).$(TclRevision)\</tclDir>\r
- <tkDir>$(ExternalsDir)tk-$(TkMajorVersion).$(TkMinorVersion).$(TkPatchLevel).$(TkRevision)\</tkDir>\r
- <tixDir>$(ExternalsDir)tix-$(TixMajorVersion).$(TixMinorVersion).$(TixPatchLevel).$(TixRevision)\</tixDir>\r
- <tcltkDir>$(ExternalsDir)tcltk-$(TclMajorVersion).$(TclMinorVersion).$(TclPatchLevel).$(TclRevision)\$(ArchName)\</tcltkDir>\r
- <tclWin32Exe Condition="$(Platform) == 'Win32'">$(tcltkDir)\bin\tclsh$(TclMajorVersion)$(TclMinorVersion)t.exe</tclWin32Exe>\r
- <tclWin32Exe Condition="$(Platform) != 'Win32'">$(tcltkDir)\..\win32\bin\tclsh$(TclMajorVersion)$(TclMinorVersion)t.exe</tclWin32Exe>\r
-\r
- <!--<TclDebugExt Condition="'$(Configuration)' == 'Debug'">g</TclDebugExt>-->\r
- <tclDLLName>tcl$(TclMajorVersion)$(TclMinorVersion)t$(TclDebugExt).dll</tclDLLName>\r
- <tclLibName>tcl$(TclMajorVersion)$(TclMinorVersion)t$(TclDebugExt).lib</tclLibName>\r
- <tclShExeName>tclsh$(TclMajorVersion)$(TclMinorVersion)t$(TclDebugExt).exe</tclShExeName>\r
- <tkDLLName>tk$(TkMajorVersion)$(TkMinorVersion)t$(TclDebugExt).dll</tkDLLName>\r
- <tkLibName>tk$(TkMajorVersion)$(TkMinorVersion)t$(TclDebugExt).lib</tkLibName>\r
- <tixDLLName>tix$(TixMajorVersion)$(TixMinorVersion)$(TclDebugExt).dll</tixDLLName>\r
- <tixDLLPath>$(tcltkDir)lib\tix$(TixMajorVersion).$(TixMinorVersion).$(TixPatchLevel)\$(tixDLLName)</tixDLLPath>\r
- <tcltkLib>$(tcltkDir)lib\tcl$(TclMajorVersion)$(TclMinorVersion)t$(TclDebugExt).lib;$(tcltkDir)lib\tk$(TkMajorVersion)$(TkMinorVersion)t$(TclDebugExt).lib</tcltkLib>\r
- <TclMachine>IX86</TclMachine>\r
- <TclMachine Condition="'$(Platform)' == 'x64'">AMD64</TclMachine>\r
- <TclMachine Condition="'$(Platform)' == 'ARM64'">ARM64</TclMachine>\r
- <TclVersions>TCL_MAJOR_VERSION=$(TclMajorVersion) TCL_MINOR_VERSION=$(TclMinorVersion) TCL_PATCH_LEVEL=$(TclPatchLevel)</TclVersions>\r
- <TclShortVersions>TCL_MAJOR=$(TclMajorVersion) TCL_MINOR=$(TclMinorVersion) TCL_PATCH=$(TclPatchLevel)</TclShortVersions>\r
- <TkVersions>TK_MAJOR_VERSION=$(TkMajorVersion) TK_MINOR_VERSION=$(TkMinorVersion) TK_PATCH_LEVEL=$(TkPatchLevel)</TkVersions>\r
-\r
- <BuildDirTop>Release</BuildDirTop>\r
- <BuildDirTop Condition="$(Configuration) == 'Debug'">Debug</BuildDirTop>\r
- <BuildDirTop Condition="$(TclMachine) != 'IX86'">$(BuildDirTop)_$(TclMachine)</BuildDirTop>\r
- <BuildDirTop Condition="$(PlatformToolset.StartsWith('v14'))">$(BuildDirTop)_VC13</BuildDirTop>\r
- <BuildDirTop Condition="$(PlatformToolset) == 'v120'">$(BuildDirTop)_VC12</BuildDirTop>\r
- <BuildDirTop Condition="$(PlatformToolset) == 'v110'">$(BuildDirTop)_VC11</BuildDirTop>\r
- <BuildDirTop Condition="$(PlatformToolset) == 'v100'">$(BuildDirTop)_VC10</BuildDirTop>\r
- </PropertyGroup>\r
-\r
- <!--\r
- Helper target for copying the lib to a specific directory.\r
-\r
- Using "msbuild tcltk.props /t:CopyTclTkLib /p:OutDir=..." is generally\r
- easier than trying to extract the value of $(tcltkdir).\r
- -->\r
- <Target Name="CopyTclTkLib">\r
- <ItemGroup>\r
- <_TclTkLib Include="$(tcltkdir)\lib\**\*" />\r
- </ItemGroup>\r
- <Copy SourceFiles="@(_TclTkLib)"\r
- DestinationFiles="$(OutDir)\%(RecursiveDir)\%(Filename)%(Extension)"\r
- UseHardlinksIfPossible="true" />\r
- </Target>\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <Import Project="pyproject.props" Condition="$(__PyProject_Props_Imported) != 'true'" />
+ <PropertyGroup>
+ <TclMajorVersion>8</TclMajorVersion>
+ <TclMinorVersion>6</TclMinorVersion>
+ <TclPatchLevel>12</TclPatchLevel>
+ <TclRevision>1</TclRevision>
+ <TkMajorVersion>$(TclMajorVersion)</TkMajorVersion>
+ <TkMinorVersion>$(TclMinorVersion)</TkMinorVersion>
+ <TkPatchLevel>$(TclPatchLevel)</TkPatchLevel>
+ <TkRevision>$(TclRevision)</TkRevision>
+ <TixMajorVersion>8</TixMajorVersion>
+ <TixMinorVersion>4</TixMinorVersion>
+ <TixPatchLevel>3</TixPatchLevel>
+ <TixRevision>6</TixRevision>
+ <tclDir>$(ExternalsDir)tcl-core-$(TclMajorVersion).$(TclMinorVersion).$(TclPatchLevel).$(TclRevision)\</tclDir>
+ <tkDir>$(ExternalsDir)tk-$(TkMajorVersion).$(TkMinorVersion).$(TkPatchLevel).$(TkRevision)\</tkDir>
+ <tixDir>$(ExternalsDir)tix-$(TixMajorVersion).$(TixMinorVersion).$(TixPatchLevel).$(TixRevision)\</tixDir>
+ <tcltkDir>$(ExternalsDir)tcltk-$(TclMajorVersion).$(TclMinorVersion).$(TclPatchLevel).$(TclRevision)\$(ArchName)\</tcltkDir>
+ <tclWin32Exe Condition="$(Platform) == 'Win32'">$(tcltkDir)\bin\tclsh$(TclMajorVersion)$(TclMinorVersion)t.exe</tclWin32Exe>
+ <tclWin32Exe Condition="$(Platform) != 'Win32'">$(tcltkDir)\..\win32\bin\tclsh$(TclMajorVersion)$(TclMinorVersion)t.exe</tclWin32Exe>
+
+ <!--<TclDebugExt Condition="'$(Configuration)' == 'Debug'">g</TclDebugExt>-->
+ <tclDLLName>tcl$(TclMajorVersion)$(TclMinorVersion)t$(TclDebugExt).dll</tclDLLName>
+ <tclLibName>tcl$(TclMajorVersion)$(TclMinorVersion)t$(TclDebugExt).lib</tclLibName>
+ <tclShExeName>tclsh$(TclMajorVersion)$(TclMinorVersion)t$(TclDebugExt).exe</tclShExeName>
+ <tkDLLName>tk$(TkMajorVersion)$(TkMinorVersion)t$(TclDebugExt).dll</tkDLLName>
+ <tkLibName>tk$(TkMajorVersion)$(TkMinorVersion)t$(TclDebugExt).lib</tkLibName>
+ <tixDLLName>tix$(TixMajorVersion)$(TixMinorVersion)$(TclDebugExt).dll</tixDLLName>
+ <tixDLLPath>$(tcltkDir)lib\tix$(TixMajorVersion).$(TixMinorVersion).$(TixPatchLevel)\$(tixDLLName)</tixDLLPath>
+ <tcltkLib>$(tcltkDir)lib\tcl$(TclMajorVersion)$(TclMinorVersion)t$(TclDebugExt).lib;$(tcltkDir)lib\tk$(TkMajorVersion)$(TkMinorVersion)t$(TclDebugExt).lib</tcltkLib>
+ <TclMachine>IX86</TclMachine>
+ <TclMachine Condition="'$(Platform)' == 'x64'">AMD64</TclMachine>
+ <TclMachine Condition="'$(Platform)' == 'ARM64'">ARM64</TclMachine>
+ <TclVersions>TCL_MAJOR_VERSION=$(TclMajorVersion) TCL_MINOR_VERSION=$(TclMinorVersion) TCL_PATCH_LEVEL=$(TclPatchLevel)</TclVersions>
+ <TclShortVersions>TCL_MAJOR=$(TclMajorVersion) TCL_MINOR=$(TclMinorVersion) TCL_PATCH=$(TclPatchLevel)</TclShortVersions>
+ <TkVersions>TK_MAJOR_VERSION=$(TkMajorVersion) TK_MINOR_VERSION=$(TkMinorVersion) TK_PATCH_LEVEL=$(TkPatchLevel)</TkVersions>
+
+ <BuildDirTop>Release</BuildDirTop>
+ <BuildDirTop Condition="$(Configuration) == 'Debug'">Debug</BuildDirTop>
+ <BuildDirTop Condition="$(TclMachine) != 'IX86'">$(BuildDirTop)_$(TclMachine)</BuildDirTop>
+ <BuildDirTop Condition="$(PlatformToolset.StartsWith('v14'))">$(BuildDirTop)_VC13</BuildDirTop>
+ <BuildDirTop Condition="$(PlatformToolset) == 'v120'">$(BuildDirTop)_VC12</BuildDirTop>
+ <BuildDirTop Condition="$(PlatformToolset) == 'v110'">$(BuildDirTop)_VC11</BuildDirTop>
+ <BuildDirTop Condition="$(PlatformToolset) == 'v100'">$(BuildDirTop)_VC10</BuildDirTop>
+ </PropertyGroup>
+
+ <!--
+ Helper target for copying the lib to a specific directory.
+
+ Using "msbuild tcltk.props /t:CopyTclTkLib /p:OutDir=..." is generally
+ easier than trying to extract the value of $(tcltkdir).
+ -->
+ <Target Name="CopyTclTkLib">
+ <ItemGroup>
+ <_TclTkLib Include="$(tcltkdir)\lib\**\*" />
+ </ItemGroup>
+ <Copy SourceFiles="@(_TclTkLib)"
+ DestinationFiles="$(OutDir)\%(RecursiveDir)\%(Filename)%(Extension)"
+ UseHardlinksIfPossible="true" />
+ </Target>
+</Project>
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|Win32">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|Win32">\r
- <Configuration>Release</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|Win32">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGInstrument|x64">\r
- <Configuration>PGInstrument</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|Win32">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="PGUpdate|x64">\r
- <Configuration>PGUpdate</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Debug|x64">\r
- <Configuration>Debug</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|x64">\r
- <Configuration>Release</Configuration>\r
- <Platform>x64</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|ARM64">\r
- <Configuration>Release</Configuration>\r
- <Platform>ARM64</Platform>\r
- </ProjectConfiguration>\r
- </ItemGroup>\r
- <PropertyGroup Label="Globals">\r
- <ProjectGuid>{C5A3E7FB-9695-4B2E-960B-1D9F43F1E555}</ProjectGuid>\r
- <RootNamespace>tix</RootNamespace>\r
- <SupportSigning>true</SupportSigning>\r
- </PropertyGroup>\r
-\r
- <Import Project="python.props" />\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />\r
- <Import Project="tcltk.props" />\r
- \r
- <PropertyGroup Label="Configuration">\r
- <ConfigurationType>Makefile</ConfigurationType>\r
- <OutDir>$(tcltkDir)</OutDir>\r
- <TargetPath>$(tixDLLPath)</TargetPath>\r
- </PropertyGroup>\r
- \r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />\r
- \r
- <PropertyGroup>\r
- <TixDirs>BUILDDIRTOP="$(BuildDirTop)" TCL_DIR="$(tclDir.TrimEnd(`\`))" TK_DIR="$(tkDir.TrimEnd(`\`))" INSTALL_DIR="$(OutDir.TrimEnd(`\`))" TCLSH_EXE="$(tclWin32Exe)"</TixDirs>\r
- <DebugFlags Condition="'$(Configuration)' == 'Debug'">DEBUG=1 NODEBUG=0 TCL_DBGX=g TK_DBGX=g</DebugFlags>\r
- <DebugFlags Condition="'$(Configuration)' != 'Debug'">DEBUG=0 NODEBUG=1</DebugFlags>\r
- <CFlags>-c -W3 -nologo -MD -wd4028 -wd4090 -wd4244 -wd4267 -wd4312</CFlags>\r
- <NMakeBuildCommandLine>setlocal\r
-set VCINSTALLDIR=$(VCInstallDir)\r
-cd /D "$(tixDir)win"\r
-nmake /nologo -f makefile.vc MACHINE=$(TclMachine) cflags="$(CFlags)" $(DebugFlags) $(TclShortVersions) $(TixDirs) all install\r
-copy /Y ..\license.terms "$(OutDir)\tixlicense.terms"\r
-</NMakeBuildCommandLine>\r
- <NMakeCleanCommandLine>rmdir /q/s "$(OutDir.TrimEnd(`\`))"</NMakeCleanCommandLine>\r
- </PropertyGroup>\r
- \r
- <Target Name="SignFiles" AfterTargets="Build" Condition="$(_SignCommand) != ''">\r
- <ItemGroup>\r
- <FilesToSign Include="$(OutDir)\bin\*.exe" />\r
- <FilesToSign Include="$(OutDir)\bin\*.dll" />\r
- </ItemGroup>\r
- <Exec Command="$(_SignCommand) "%(FilesToSign.FullPath)"" ContinueOnError="true" />\r
- </Target>\r
-\r
- <ItemGroup>\r
- <ProjectReference Include="tcl.vcxproj">\r
- <Project>{b5fd6f1d-129e-4bff-9340-03606fac7283}</Project>\r
- <ReferenceOutputAssembly>false</ReferenceOutputAssembly>\r
- </ProjectReference>\r
- <ProjectReference Include="tk.vcxproj">\r
- <Project>{7e85eccf-a72c-4da4-9e52-884508e80ba1}</Project>\r
- <ReferenceOutputAssembly>false</ReferenceOutputAssembly>\r
- </ProjectReference>\r
- </ItemGroup>\r
-\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />\r
-\r
- <Target Name="Clean" />\r
- <Target Name="CleanAll">\r
- <RemoveDir Directories="$(OutDir)" />\r
- <RemoveDir Directories="$(IntDir)" />\r
- </Target>\r
- \r
- <Target Name="ResolveAssemblyReferences" />\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Debug|Win32">
+ <Configuration>Debug</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|Win32">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGInstrument|x64">
+ <Configuration>PGInstrument</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|Win32">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="PGUpdate|x64">
+ <Configuration>PGUpdate</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Debug|x64">
+ <Configuration>Debug</Configuration>
+ <Platform>x64</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|x64">
+ <Configuration>Release</Configuration>
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\ No newline at end of file
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\ No newline at end of file
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#define _tmp_209_type 1437
#define _tmp_210_type 1438
#define _tmp_212_type 1440
#define _tmp_213_type 1441
#define _tmp_214_type 1442
-#define _loop0_216_type 1443
-#define _gather_215_type 1444
+#define _tmp_215_type 1443
+#define _tmp_216_type 1444
#define _tmp_217_type 1445
-#define _tmp_218_type 1446
-#define _tmp_219_type 1447
+#define _loop0_219_type 1446
+#define _gather_218_type 1447
#define _tmp_220_type 1448
#define _tmp_221_type 1449
#define _tmp_222_type 1450
#define _tmp_245_type 1473
#define _tmp_246_type 1474
#define _tmp_247_type 1475
-#define _loop1_248_type 1476
-#define _loop1_249_type 1477
+#define _tmp_248_type 1476
+#define _tmp_249_type 1477
static mod_ty file_rule(Parser *p);
static mod_ty interactive_rule(Parser *p);
static asdl_seq *_gather_200_rule(Parser *p);
static void *_tmp_202_rule(Parser *p);
static asdl_seq *_loop0_203_rule(Parser *p);
-static void *_tmp_204_rule(Parser *p);
-static asdl_seq *_loop0_205_rule(Parser *p);
-static void *_tmp_206_rule(Parser *p);
-static void *_tmp_207_rule(Parser *p);
+static asdl_seq *_loop1_204_rule(Parser *p);
+static void *_tmp_205_rule(Parser *p);
+static asdl_seq *_loop0_206_rule(Parser *p);
+static asdl_seq *_loop1_207_rule(Parser *p);
static void *_tmp_208_rule(Parser *p);
static void *_tmp_209_rule(Parser *p);
static void *_tmp_210_rule(Parser *p);
static void *_tmp_212_rule(Parser *p);
static void *_tmp_213_rule(Parser *p);
static void *_tmp_214_rule(Parser *p);
-static asdl_seq *_loop0_216_rule(Parser *p);
-static asdl_seq *_gather_215_rule(Parser *p);
+static void *_tmp_215_rule(Parser *p);
+static void *_tmp_216_rule(Parser *p);
static void *_tmp_217_rule(Parser *p);
-static void *_tmp_218_rule(Parser *p);
-static void *_tmp_219_rule(Parser *p);
+static asdl_seq *_loop0_219_rule(Parser *p);
+static asdl_seq *_gather_218_rule(Parser *p);
static void *_tmp_220_rule(Parser *p);
static void *_tmp_221_rule(Parser *p);
static void *_tmp_222_rule(Parser *p);
static void *_tmp_245_rule(Parser *p);
static void *_tmp_246_rule(Parser *p);
static void *_tmp_247_rule(Parser *p);
-static asdl_seq *_loop1_248_rule(Parser *p);
-static asdl_seq *_loop1_249_rule(Parser *p);
+static void *_tmp_248_rule(Parser *p);
+static void *_tmp_249_rule(Parser *p);
// file: statements? $
D(fprintf(stderr, "%*c> compound_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "&'if' if_stmt"));
stmt_ty if_stmt_var;
if (
- _PyPegen_lookahead_with_int(1, _PyPegen_expect_token, p, 634) // token='if'
+ _PyPegen_lookahead_with_int(1, _PyPegen_expect_token, p, 639) // token='if'
&&
(if_stmt_var = if_stmt_rule(p)) // if_stmt
)
D(fprintf(stderr, "%*c> compound_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "&'try' try_stmt"));
stmt_ty try_stmt_var;
if (
- _PyPegen_lookahead_with_int(1, _PyPegen_expect_token, p, 618) // token='try'
+ _PyPegen_lookahead_with_int(1, _PyPegen_expect_token, p, 621) // token='try'
&&
(try_stmt_var = try_stmt_rule(p)) // try_stmt
)
D(fprintf(stderr, "%*c> compound_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "&'while' while_stmt"));
stmt_ty while_stmt_var;
if (
- _PyPegen_lookahead_with_int(1, _PyPegen_expect_token, p, 639) // token='while'
+ _PyPegen_lookahead_with_int(1, _PyPegen_expect_token, p, 644) // token='while'
&&
(while_stmt_var = while_stmt_rule(p)) // while_stmt
)
void *b;
asdl_stmt_seq* c;
if (
- (_keyword = _PyPegen_expect_token(p, 646)) // token='class'
+ (_keyword = _PyPegen_expect_token(p, 651)) // token='class'
&&
(a = _PyPegen_name_token(p)) // NAME
&&
void *params;
void *tc;
if (
- (_keyword = _PyPegen_expect_token(p, 644)) // token='def'
+ (_keyword = _PyPegen_expect_token(p, 649)) // token='def'
&&
(n = _PyPegen_name_token(p)) // NAME
&&
if (
(async_var = _PyPegen_expect_token(p, ASYNC)) // token='ASYNC'
&&
- (_keyword = _PyPegen_expect_token(p, 644)) // token='def'
+ (_keyword = _PyPegen_expect_token(p, 649)) // token='def'
&&
(n = _PyPegen_name_token(p)) // NAME
&&
asdl_stmt_seq* b;
stmt_ty c;
if (
- (_keyword = _PyPegen_expect_token(p, 634)) // token='if'
+ (_keyword = _PyPegen_expect_token(p, 639)) // token='if'
&&
(a = named_expression_rule(p)) // named_expression
&&
asdl_stmt_seq* b;
void *c;
if (
- (_keyword = _PyPegen_expect_token(p, 634)) // token='if'
+ (_keyword = _PyPegen_expect_token(p, 639)) // token='if'
&&
(a = named_expression_rule(p)) // named_expression
&&
asdl_stmt_seq* b;
stmt_ty c;
if (
- (_keyword = _PyPegen_expect_token(p, 636)) // token='elif'
+ (_keyword = _PyPegen_expect_token(p, 641)) // token='elif'
&&
(a = named_expression_rule(p)) // named_expression
&&
asdl_stmt_seq* b;
void *c;
if (
- (_keyword = _PyPegen_expect_token(p, 636)) // token='elif'
+ (_keyword = _PyPegen_expect_token(p, 641)) // token='elif'
&&
(a = named_expression_rule(p)) // named_expression
&&
Token * _literal;
asdl_stmt_seq* b;
if (
- (_keyword = _PyPegen_expect_token(p, 637)) // token='else'
+ (_keyword = _PyPegen_expect_token(p, 642)) // token='else'
&&
(_literal = _PyPegen_expect_forced_token(p, 11, ":")) // forced_token=':'
&&
asdl_stmt_seq* b;
void *c;
if (
- (_keyword = _PyPegen_expect_token(p, 639)) // token='while'
+ (_keyword = _PyPegen_expect_token(p, 644)) // token='while'
&&
(a = named_expression_rule(p)) // named_expression
&&
expr_ty t;
void *tc;
if (
- (_keyword = _PyPegen_expect_token(p, 642)) // token='for'
+ (_keyword = _PyPegen_expect_token(p, 647)) // token='for'
&&
(t = star_targets_rule(p)) // star_targets
&&
- (_keyword_1 = _PyPegen_expect_token(p, 643)) // token='in'
+ (_keyword_1 = _PyPegen_expect_token(p, 648)) // token='in'
&&
(_cut_var = 1)
&&
if (
(async_var = _PyPegen_expect_token(p, ASYNC)) // token='ASYNC'
&&
- (_keyword = _PyPegen_expect_token(p, 642)) // token='for'
+ (_keyword = _PyPegen_expect_token(p, 647)) // token='for'
&&
(t = star_targets_rule(p)) // star_targets
&&
- (_keyword_1 = _PyPegen_expect_token(p, 643)) // token='in'
+ (_keyword_1 = _PyPegen_expect_token(p, 648)) // token='in'
&&
(_cut_var = 1)
&&
if (
(e = expression_rule(p)) // expression
&&
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(t = star_target_rule(p)) // star_target
&&
asdl_stmt_seq* b;
asdl_stmt_seq* f;
if (
- (_keyword = _PyPegen_expect_token(p, 618)) // token='try'
+ (_keyword = _PyPegen_expect_token(p, 621)) // token='try'
&&
(_literal = _PyPegen_expect_forced_token(p, 11, ":")) // forced_token=':'
&&
asdl_excepthandler_seq* ex;
void *f;
if (
- (_keyword = _PyPegen_expect_token(p, 618)) // token='try'
+ (_keyword = _PyPegen_expect_token(p, 621)) // token='try'
&&
(_literal = _PyPegen_expect_forced_token(p, 11, ":")) // forced_token=':'
&&
asdl_excepthandler_seq* ex;
void *f;
if (
- (_keyword = _PyPegen_expect_token(p, 618)) // token='try'
+ (_keyword = _PyPegen_expect_token(p, 621)) // token='try'
&&
(_literal = _PyPegen_expect_forced_token(p, 11, ":")) // forced_token=':'
&&
expr_ty e;
void *t;
if (
- (_keyword = _PyPegen_expect_token(p, 629)) // token='except'
+ (_keyword = _PyPegen_expect_token(p, 634)) // token='except'
&&
(e = expression_rule(p)) // expression
&&
Token * _literal;
asdl_stmt_seq* b;
if (
- (_keyword = _PyPegen_expect_token(p, 629)) // token='except'
+ (_keyword = _PyPegen_expect_token(p, 634)) // token='except'
&&
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
&&
expr_ty e;
void *t;
if (
- (_keyword = _PyPegen_expect_token(p, 629)) // token='except'
+ (_keyword = _PyPegen_expect_token(p, 634)) // token='except'
&&
(_literal = _PyPegen_expect_token(p, 16)) // token='*'
&&
Token * _literal;
asdl_stmt_seq* a;
if (
- (_keyword = _PyPegen_expect_token(p, 625)) // token='finally'
+ (_keyword = _PyPegen_expect_token(p, 630)) // token='finally'
&&
(_literal = _PyPegen_expect_forced_token(p, 11, ":")) // forced_token=':'
&&
Token * _keyword;
expr_ty guard;
if (
- (_keyword = _PyPegen_expect_token(p, 634)) // token='if'
+ (_keyword = _PyPegen_expect_token(p, 639)) // token='if'
&&
(guard = named_expression_rule(p)) // named_expression
)
if (
(pattern = or_pattern_rule(p)) // or_pattern
&&
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(target = pattern_capture_target_rule(p)) // pattern_capture_target
)
if (
(a = disjunction_rule(p)) // disjunction
&&
- (_keyword = _PyPegen_expect_token(p, 634)) // token='if'
+ (_keyword = _PyPegen_expect_token(p, 639)) // token='if'
&&
(b = disjunction_rule(p)) // disjunction
&&
- (_keyword_1 = _PyPegen_expect_token(p, 637)) // token='else'
+ (_keyword_1 = _PyPegen_expect_token(p, 642)) // token='else'
&&
(c = expression_rule(p)) // expression
)
if (
(_keyword = _PyPegen_expect_token(p, 581)) // token='not'
&&
- (_keyword_1 = _PyPegen_expect_token(p, 643)) // token='in'
+ (_keyword_1 = _PyPegen_expect_token(p, 648)) // token='in'
&&
(a = bitwise_or_rule(p)) // bitwise_or
)
Token * _keyword;
expr_ty a;
if (
- (_keyword = _PyPegen_expect_token(p, 643)) // token='in'
+ (_keyword = _PyPegen_expect_token(p, 648)) // token='in'
&&
(a = bitwise_or_rule(p)) // bitwise_or
)
if (
(async_var = _PyPegen_expect_token(p, ASYNC)) // token='ASYNC'
&&
- (_keyword = _PyPegen_expect_token(p, 642)) // token='for'
+ (_keyword = _PyPegen_expect_token(p, 647)) // token='for'
&&
(a = star_targets_rule(p)) // star_targets
&&
- (_keyword_1 = _PyPegen_expect_token(p, 643)) // token='in'
+ (_keyword_1 = _PyPegen_expect_token(p, 648)) // token='in'
&&
(_cut_var = 1)
&&
expr_ty b;
asdl_expr_seq* c;
if (
- (_keyword = _PyPegen_expect_token(p, 642)) // token='for'
+ (_keyword = _PyPegen_expect_token(p, 647)) // token='for'
&&
(a = star_targets_rule(p)) // star_targets
&&
- (_keyword_1 = _PyPegen_expect_token(p, 643)) // token='in'
+ (_keyword_1 = _PyPegen_expect_token(p, 648)) // token='in'
&&
(_cut_var = 1)
&&
if (
(a = disjunction_rule(p)) // disjunction
&&
- (_keyword = _PyPegen_expect_token(p, 634)) // token='if'
+ (_keyword = _PyPegen_expect_token(p, 639)) // token='if'
&&
(b = disjunction_rule(p)) // disjunction
&&
- (_keyword_1 = _PyPegen_expect_token(p, 637)) // token='else'
+ (_keyword_1 = _PyPegen_expect_token(p, 642)) // token='else'
&&
(c = expression_rule(p)) // expression
)
if (
(a = disjunction_rule(p)) // disjunction
&&
- (_keyword = _PyPegen_expect_token(p, 634)) // token='if'
+ (_keyword = _PyPegen_expect_token(p, 639)) // token='if'
&&
(b = disjunction_rule(p)) // disjunction
&&
if (
(expression_var = expression_rule(p)) // expression
&&
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(a = expression_rule(p)) // expression
&&
if (
(_opt_var = _PyPegen_expect_token(p, ASYNC), !p->error_indicator) // ASYNC?
&&
- (_keyword = _PyPegen_expect_token(p, 642)) // token='for'
+ (_keyword = _PyPegen_expect_token(p, 647)) // token='for'
&&
(a = star_expressions_rule(p)) // star_expressions
)
// invalid_try_stmt:
// | 'try' ':' NEWLINE !INDENT
// | 'try' ':' block !('except' | 'finally')
-// | 'try' ':' block* ((except_block+ except_star_block) | (except_star_block+ except_block)) block*
+// | 'try' ':' block* except_block+ 'except' '*' expression ['as' NAME] ':'
+// | 'try' ':' block* except_star_block+ 'except' [expression ['as' NAME]] ':'
static void *
invalid_try_stmt_rule(Parser *p)
{
Token * a;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 618)) // token='try'
+ (a = _PyPegen_expect_token(p, 621)) // token='try'
&&
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
&&
Token * _literal;
asdl_stmt_seq* block_var;
if (
- (_keyword = _PyPegen_expect_token(p, 618)) // token='try'
+ (_keyword = _PyPegen_expect_token(p, 621)) // token='try'
&&
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
&&
D(fprintf(stderr, "%*c%s invalid_try_stmt[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'try' ':' block !('except' | 'finally')"));
}
- { // 'try' ':' block* ((except_block+ except_star_block) | (except_star_block+ except_block)) block*
+ { // 'try' ':' block* except_block+ 'except' '*' expression ['as' NAME] ':'
if (p->error_indicator) {
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> invalid_try_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'try' ':' block* ((except_block+ except_star_block) | (except_star_block+ except_block)) block*"));
+ D(fprintf(stderr, "%*c> invalid_try_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'try' ':' block* except_block+ 'except' '*' expression ['as' NAME] ':'"));
Token * _keyword;
Token * _literal;
+ Token * _literal_1;
asdl_seq * _loop0_203_var;
- asdl_seq * _loop0_205_var;
- void *_tmp_204_var;
+ asdl_seq * _loop1_204_var;
+ void *_opt_var;
+ UNUSED(_opt_var); // Silence compiler warnings
+ Token * a;
+ Token * b;
+ expr_ty expression_var;
if (
- (_keyword = _PyPegen_expect_token(p, 618)) // token='try'
+ (_keyword = _PyPegen_expect_token(p, 621)) // token='try'
&&
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
&&
(_loop0_203_var = _loop0_203_rule(p)) // block*
&&
- (_tmp_204_var = _tmp_204_rule(p)) // (except_block+ except_star_block) | (except_star_block+ except_block)
+ (_loop1_204_var = _loop1_204_rule(p)) // except_block+
+ &&
+ (a = _PyPegen_expect_token(p, 634)) // token='except'
+ &&
+ (b = _PyPegen_expect_token(p, 16)) // token='*'
+ &&
+ (expression_var = expression_rule(p)) // expression
+ &&
+ (_opt_var = _tmp_205_rule(p), !p->error_indicator) // ['as' NAME]
+ &&
+ (_literal_1 = _PyPegen_expect_token(p, 11)) // token=':'
+ )
+ {
+ D(fprintf(stderr, "%*c+ invalid_try_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'try' ':' block* except_block+ 'except' '*' expression ['as' NAME] ':'"));
+ _res = RAISE_SYNTAX_ERROR_KNOWN_RANGE ( a , b , "cannot have both 'except' and 'except*' on the same 'try'" );
+ if (_res == NULL && PyErr_Occurred()) {
+ p->error_indicator = 1;
+ p->level--;
+ return NULL;
+ }
+ goto done;
+ }
+ p->mark = _mark;
+ D(fprintf(stderr, "%*c%s invalid_try_stmt[%d-%d]: %s failed!\n", p->level, ' ',
+ p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'try' ':' block* except_block+ 'except' '*' expression ['as' NAME] ':'"));
+ }
+ { // 'try' ':' block* except_star_block+ 'except' [expression ['as' NAME]] ':'
+ if (p->error_indicator) {
+ p->level--;
+ return NULL;
+ }
+ D(fprintf(stderr, "%*c> invalid_try_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'try' ':' block* except_star_block+ 'except' [expression ['as' NAME]] ':'"));
+ Token * _keyword;
+ Token * _literal;
+ Token * _literal_1;
+ asdl_seq * _loop0_206_var;
+ asdl_seq * _loop1_207_var;
+ void *_opt_var;
+ UNUSED(_opt_var); // Silence compiler warnings
+ Token * a;
+ if (
+ (_keyword = _PyPegen_expect_token(p, 621)) // token='try'
+ &&
+ (_literal = _PyPegen_expect_token(p, 11)) // token=':'
+ &&
+ (_loop0_206_var = _loop0_206_rule(p)) // block*
+ &&
+ (_loop1_207_var = _loop1_207_rule(p)) // except_star_block+
+ &&
+ (a = _PyPegen_expect_token(p, 634)) // token='except'
+ &&
+ (_opt_var = _tmp_208_rule(p), !p->error_indicator) // [expression ['as' NAME]]
&&
- (_loop0_205_var = _loop0_205_rule(p)) // block*
+ (_literal_1 = _PyPegen_expect_token(p, 11)) // token=':'
)
{
- D(fprintf(stderr, "%*c+ invalid_try_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'try' ':' block* ((except_block+ except_star_block) | (except_star_block+ except_block)) block*"));
- _res = RAISE_SYNTAX_ERROR ( "cannot have both 'except' and 'except*' on the same 'try'" );
+ D(fprintf(stderr, "%*c+ invalid_try_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'try' ':' block* except_star_block+ 'except' [expression ['as' NAME]] ':'"));
+ _res = RAISE_SYNTAX_ERROR_KNOWN_LOCATION ( a , "cannot have both 'except' and 'except*' on the same 'try'" );
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
p->level--;
}
p->mark = _mark;
D(fprintf(stderr, "%*c%s invalid_try_stmt[%d-%d]: %s failed!\n", p->level, ' ',
- p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'try' ':' block* ((except_block+ except_star_block) | (except_star_block+ except_block)) block*"));
+ p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'try' ':' block* except_star_block+ 'except' [expression ['as' NAME]] ':'"));
}
_res = NULL;
done:
expr_ty a;
expr_ty expressions_var;
if (
- (_keyword = _PyPegen_expect_token(p, 629)) // token='except'
+ (_keyword = _PyPegen_expect_token(p, 634)) // token='except'
&&
(_opt_var = _PyPegen_expect_token(p, 16), !p->error_indicator) // '*'?
&&
&&
(expressions_var = expressions_rule(p)) // expressions
&&
- (_opt_var_1 = _tmp_206_rule(p), !p->error_indicator) // ['as' NAME]
+ (_opt_var_1 = _tmp_209_rule(p), !p->error_indicator) // ['as' NAME]
&&
(_literal_1 = _PyPegen_expect_token(p, 11)) // token=':'
)
expr_ty expression_var;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 629)) // token='except'
+ (a = _PyPegen_expect_token(p, 634)) // token='except'
&&
(_opt_var = _PyPegen_expect_token(p, 16), !p->error_indicator) // '*'?
&&
(expression_var = expression_rule(p)) // expression
&&
- (_opt_var_1 = _tmp_207_rule(p), !p->error_indicator) // ['as' NAME]
+ (_opt_var_1 = _tmp_210_rule(p), !p->error_indicator) // ['as' NAME]
&&
(newline_var = _PyPegen_expect_token(p, NEWLINE)) // token='NEWLINE'
)
Token * a;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 629)) // token='except'
+ (a = _PyPegen_expect_token(p, 634)) // token='except'
&&
(newline_var = _PyPegen_expect_token(p, NEWLINE)) // token='NEWLINE'
)
}
D(fprintf(stderr, "%*c> invalid_except_stmt[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'except' '*' (NEWLINE | ':')"));
Token * _literal;
- void *_tmp_208_var;
+ void *_tmp_211_var;
Token * a;
if (
- (a = _PyPegen_expect_token(p, 629)) // token='except'
+ (a = _PyPegen_expect_token(p, 634)) // token='except'
&&
(_literal = _PyPegen_expect_token(p, 16)) // token='*'
&&
- (_tmp_208_var = _tmp_208_rule(p)) // NEWLINE | ':'
+ (_tmp_211_var = _tmp_211_rule(p)) // NEWLINE | ':'
)
{
D(fprintf(stderr, "%*c+ invalid_except_stmt[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'except' '*' (NEWLINE | ':')"));
Token * a;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 625)) // token='finally'
+ (a = _PyPegen_expect_token(p, 630)) // token='finally'
&&
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
&&
expr_ty expression_var;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 629)) // token='except'
+ (a = _PyPegen_expect_token(p, 634)) // token='except'
&&
(expression_var = expression_rule(p)) // expression
&&
- (_opt_var = _tmp_209_rule(p), !p->error_indicator) // ['as' NAME]
+ (_opt_var = _tmp_212_rule(p), !p->error_indicator) // ['as' NAME]
&&
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
&&
Token * a;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 629)) // token='except'
+ (a = _PyPegen_expect_token(p, 634)) // token='except'
&&
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
&&
expr_ty expression_var;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 629)) // token='except'
+ (a = _PyPegen_expect_token(p, 634)) // token='except'
&&
(_literal = _PyPegen_expect_token(p, 16)) // token='*'
&&
(expression_var = expression_rule(p)) // expression
&&
- (_opt_var = _tmp_210_rule(p), !p->error_indicator) // ['as' NAME]
+ (_opt_var = _tmp_213_rule(p), !p->error_indicator) // ['as' NAME]
&&
(_literal_1 = _PyPegen_expect_token(p, 11)) // token=':'
&&
if (
(or_pattern_var = or_pattern_rule(p)) // or_pattern
&&
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(a = _PyPegen_expect_soft_keyword(p, "_")) // soft_keyword='"_"'
)
if (
(or_pattern_var = or_pattern_rule(p)) // or_pattern
&&
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
_PyPegen_lookahead_with_name(0, _PyPegen_name_token, p)
&&
asdl_pattern_seq* a;
asdl_seq* keyword_patterns_var;
if (
- (_opt_var = _tmp_211_rule(p), !p->error_indicator) // [positional_patterns ',']
+ (_opt_var = _tmp_214_rule(p), !p->error_indicator) // [positional_patterns ',']
&&
(keyword_patterns_var = keyword_patterns_rule(p)) // keyword_patterns
&&
expr_ty named_expression_var;
Token * newline_var;
if (
- (_keyword = _PyPegen_expect_token(p, 634)) // token='if'
+ (_keyword = _PyPegen_expect_token(p, 639)) // token='if'
&&
(named_expression_var = named_expression_rule(p)) // named_expression
&&
expr_ty a_1;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 634)) // token='if'
+ (a = _PyPegen_expect_token(p, 639)) // token='if'
&&
(a_1 = named_expression_rule(p)) // named_expression
&&
expr_ty named_expression_var;
Token * newline_var;
if (
- (_keyword = _PyPegen_expect_token(p, 636)) // token='elif'
+ (_keyword = _PyPegen_expect_token(p, 641)) // token='elif'
&&
(named_expression_var = named_expression_rule(p)) // named_expression
&&
expr_ty named_expression_var;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 636)) // token='elif'
+ (a = _PyPegen_expect_token(p, 641)) // token='elif'
&&
(named_expression_var = named_expression_rule(p)) // named_expression
&&
Token * a;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 637)) // token='else'
+ (a = _PyPegen_expect_token(p, 642)) // token='else'
&&
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
&&
expr_ty named_expression_var;
Token * newline_var;
if (
- (_keyword = _PyPegen_expect_token(p, 639)) // token='while'
+ (_keyword = _PyPegen_expect_token(p, 644)) // token='while'
&&
(named_expression_var = named_expression_rule(p)) // named_expression
&&
expr_ty named_expression_var;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 639)) // token='while'
+ (a = _PyPegen_expect_token(p, 644)) // token='while'
&&
(named_expression_var = named_expression_rule(p)) // named_expression
&&
if (
(_opt_var = _PyPegen_expect_token(p, ASYNC), !p->error_indicator) // ASYNC?
&&
- (_keyword = _PyPegen_expect_token(p, 642)) // token='for'
+ (_keyword = _PyPegen_expect_token(p, 647)) // token='for'
&&
(star_targets_var = star_targets_rule(p)) // star_targets
&&
- (_keyword_1 = _PyPegen_expect_token(p, 643)) // token='in'
+ (_keyword_1 = _PyPegen_expect_token(p, 648)) // token='in'
&&
(star_expressions_var = star_expressions_rule(p)) // star_expressions
&&
if (
(_opt_var = _PyPegen_expect_token(p, ASYNC), !p->error_indicator) // ASYNC?
&&
- (a = _PyPegen_expect_token(p, 642)) // token='for'
+ (a = _PyPegen_expect_token(p, 647)) // token='for'
&&
(star_targets_var = star_targets_rule(p)) // star_targets
&&
- (_keyword = _PyPegen_expect_token(p, 643)) // token='in'
+ (_keyword = _PyPegen_expect_token(p, 648)) // token='in'
&&
(star_expressions_var = star_expressions_rule(p)) // star_expressions
&&
if (
(_opt_var = _PyPegen_expect_token(p, ASYNC), !p->error_indicator) // ASYNC?
&&
- (a = _PyPegen_expect_token(p, 644)) // token='def'
+ (a = _PyPegen_expect_token(p, 649)) // token='def'
&&
(name_var = _PyPegen_name_token(p)) // NAME
&&
&&
(_literal_1 = _PyPegen_expect_token(p, 8)) // token=')'
&&
- (_opt_var_2 = _tmp_212_rule(p), !p->error_indicator) // ['->' expression]
+ (_opt_var_2 = _tmp_215_rule(p), !p->error_indicator) // ['->' expression]
&&
(_literal_2 = _PyPegen_expect_token(p, 11)) // token=':'
&&
expr_ty name_var;
Token * newline_var;
if (
- (_keyword = _PyPegen_expect_token(p, 646)) // token='class'
+ (_keyword = _PyPegen_expect_token(p, 651)) // token='class'
&&
(name_var = _PyPegen_name_token(p)) // NAME
&&
- (_opt_var = _tmp_213_rule(p), !p->error_indicator) // ['(' arguments? ')']
+ (_opt_var = _tmp_216_rule(p), !p->error_indicator) // ['(' arguments? ')']
&&
(newline_var = _PyPegen_expect_token(p, NEWLINE)) // token='NEWLINE'
)
expr_ty name_var;
Token * newline_var;
if (
- (a = _PyPegen_expect_token(p, 646)) // token='class'
+ (a = _PyPegen_expect_token(p, 651)) // token='class'
&&
(name_var = _PyPegen_name_token(p)) // NAME
&&
- (_opt_var = _tmp_214_rule(p), !p->error_indicator) // ['(' arguments? ')']
+ (_opt_var = _tmp_217_rule(p), !p->error_indicator) // ['(' arguments? ')']
&&
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
&&
return NULL;
}
D(fprintf(stderr, "%*c> invalid_double_starred_kvpairs[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','.double_starred_kvpair+ ',' invalid_kvpair"));
- asdl_seq * _gather_215_var;
+ asdl_seq * _gather_218_var;
Token * _literal;
void *invalid_kvpair_var;
if (
- (_gather_215_var = _gather_215_rule(p)) // ','.double_starred_kvpair+
+ (_gather_218_var = _gather_218_rule(p)) // ','.double_starred_kvpair+
&&
(_literal = _PyPegen_expect_token(p, 12)) // token=','
&&
)
{
D(fprintf(stderr, "%*c+ invalid_double_starred_kvpairs[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','.double_starred_kvpair+ ',' invalid_kvpair"));
- _res = _PyPegen_dummy_name(p, _gather_215_var, _literal, invalid_kvpair_var);
+ _res = _PyPegen_dummy_name(p, _gather_218_var, _literal, invalid_kvpair_var);
goto done;
}
p->mark = _mark;
&&
(a = _PyPegen_expect_token(p, 11)) // token=':'
&&
- _PyPegen_lookahead(1, _tmp_217_rule, p)
+ _PyPegen_lookahead(1, _tmp_220_rule, p)
)
{
D(fprintf(stderr, "%*c+ invalid_double_starred_kvpairs[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression ':' &('}' | ',')"));
&&
(a = _PyPegen_expect_token(p, 11)) // token=':'
&&
- _PyPegen_lookahead(1, _tmp_218_rule, p)
+ _PyPegen_lookahead(1, _tmp_221_rule, p)
)
{
D(fprintf(stderr, "%*c+ invalid_kvpair[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression ':' &('}' | ',')"));
D(fprintf(stderr, "%*c> _tmp_7[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'def'"));
Token * _keyword;
if (
- (_keyword = _PyPegen_expect_token(p, 644)) // token='def'
+ (_keyword = _PyPegen_expect_token(p, 649)) // token='def'
)
{
D(fprintf(stderr, "%*c+ _tmp_7[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'def'"));
D(fprintf(stderr, "%*c> _tmp_8[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'class'"));
Token * _keyword;
if (
- (_keyword = _PyPegen_expect_token(p, 646)) // token='class'
+ (_keyword = _PyPegen_expect_token(p, 651)) // token='class'
)
{
D(fprintf(stderr, "%*c+ _tmp_8[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'class'"));
D(fprintf(stderr, "%*c> _tmp_10[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'for'"));
Token * _keyword;
if (
- (_keyword = _PyPegen_expect_token(p, 642)) // token='for'
+ (_keyword = _PyPegen_expect_token(p, 647)) // token='for'
)
{
D(fprintf(stderr, "%*c+ _tmp_10[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'for'"));
return NULL;
}
D(fprintf(stderr, "%*c> _loop1_14[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
- void *_tmp_219_var;
+ void *_tmp_222_var;
while (
- (_tmp_219_var = _tmp_219_rule(p)) // star_targets '='
+ (_tmp_222_var = _tmp_222_rule(p)) // star_targets '='
)
{
- _res = _tmp_219_var;
+ _res = _tmp_222_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
return NULL;
}
D(fprintf(stderr, "%*c> _loop0_24[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('.' | '...')"));
- void *_tmp_220_var;
+ void *_tmp_223_var;
while (
- (_tmp_220_var = _tmp_220_rule(p)) // '.' | '...'
+ (_tmp_223_var = _tmp_223_rule(p)) // '.' | '...'
)
{
- _res = _tmp_220_var;
+ _res = _tmp_223_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
return NULL;
}
D(fprintf(stderr, "%*c> _loop1_25[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('.' | '...')"));
- void *_tmp_221_var;
+ void *_tmp_224_var;
while (
- (_tmp_221_var = _tmp_221_rule(p)) // '.' | '...'
+ (_tmp_224_var = _tmp_224_rule(p)) // '.' | '...'
)
{
- _res = _tmp_221_var;
+ _res = _tmp_224_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
Token * _keyword;
expr_ty z;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(z = _PyPegen_name_token(p)) // NAME
)
Token * _keyword;
expr_ty z;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(z = _PyPegen_name_token(p)) // NAME
)
return NULL;
}
D(fprintf(stderr, "%*c> _loop1_32[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('@' named_expression NEWLINE)"));
- void *_tmp_222_var;
+ void *_tmp_225_var;
while (
- (_tmp_222_var = _tmp_222_rule(p)) // '@' named_expression NEWLINE
+ (_tmp_225_var = _tmp_225_rule(p)) // '@' named_expression NEWLINE
)
{
- _res = _tmp_222_var;
+ _res = _tmp_225_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
Token * _keyword;
expr_ty z;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(z = _PyPegen_name_token(p)) // NAME
)
Token * _keyword;
expr_ty z;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(z = _PyPegen_name_token(p)) // NAME
)
return NULL;
}
D(fprintf(stderr, "%*c> _loop1_80[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' expression)"));
- void *_tmp_223_var;
+ void *_tmp_226_var;
while (
- (_tmp_223_var = _tmp_223_rule(p)) // ',' expression
+ (_tmp_226_var = _tmp_226_rule(p)) // ',' expression
)
{
- _res = _tmp_223_var;
+ _res = _tmp_226_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
return NULL;
}
D(fprintf(stderr, "%*c> _loop1_81[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_expression)"));
- void *_tmp_224_var;
+ void *_tmp_227_var;
while (
- (_tmp_224_var = _tmp_224_rule(p)) // ',' star_expression
+ (_tmp_227_var = _tmp_227_rule(p)) // ',' star_expression
)
{
- _res = _tmp_224_var;
+ _res = _tmp_227_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
return NULL;
}
D(fprintf(stderr, "%*c> _loop1_84[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('or' conjunction)"));
- void *_tmp_225_var;
+ void *_tmp_228_var;
while (
- (_tmp_225_var = _tmp_225_rule(p)) // 'or' conjunction
+ (_tmp_228_var = _tmp_228_rule(p)) // 'or' conjunction
)
{
- _res = _tmp_225_var;
+ _res = _tmp_228_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
return NULL;
}
D(fprintf(stderr, "%*c> _loop1_85[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('and' inversion)"));
- void *_tmp_226_var;
+ void *_tmp_229_var;
while (
- (_tmp_226_var = _tmp_226_rule(p)) // 'and' inversion
+ (_tmp_229_var = _tmp_229_rule(p)) // 'and' inversion
)
{
- _res = _tmp_226_var;
+ _res = _tmp_229_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
while (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
&&
- (elem = _tmp_227_rule(p)) // slice | starred_expression
+ (elem = _tmp_230_rule(p)) // slice | starred_expression
)
{
_res = elem;
void *elem;
asdl_seq * seq;
if (
- (elem = _tmp_227_rule(p)) // slice | starred_expression
+ (elem = _tmp_230_rule(p)) // slice | starred_expression
&&
(seq = _loop0_89_rule(p)) // _loop0_89
)
return NULL;
}
D(fprintf(stderr, "%*c> _loop0_114[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('if' disjunction)"));
- void *_tmp_228_var;
+ void *_tmp_231_var;
while (
- (_tmp_228_var = _tmp_228_rule(p)) // 'if' disjunction
+ (_tmp_231_var = _tmp_231_rule(p)) // 'if' disjunction
)
{
- _res = _tmp_228_var;
+ _res = _tmp_231_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
return NULL;
}
D(fprintf(stderr, "%*c> _loop0_115[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "('if' disjunction)"));
- void *_tmp_229_var;
+ void *_tmp_232_var;
while (
- (_tmp_229_var = _tmp_229_rule(p)) // 'if' disjunction
+ (_tmp_232_var = _tmp_232_rule(p)) // 'if' disjunction
)
{
- _res = _tmp_229_var;
+ _res = _tmp_232_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
while (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
&&
- (elem = _tmp_230_rule(p)) // starred_expression | (assignment_expression | expression !':=') !'='
+ (elem = _tmp_233_rule(p)) // starred_expression | (assignment_expression | expression !':=') !'='
)
{
_res = elem;
void *elem;
asdl_seq * seq;
if (
- (elem = _tmp_230_rule(p)) // starred_expression | (assignment_expression | expression !':=') !'='
+ (elem = _tmp_233_rule(p)) // starred_expression | (assignment_expression | expression !':=') !'='
&&
(seq = _loop0_118_rule(p)) // _loop0_118
)
return NULL;
}
D(fprintf(stderr, "%*c> _loop0_128[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_target)"));
- void *_tmp_231_var;
+ void *_tmp_234_var;
while (
- (_tmp_231_var = _tmp_231_rule(p)) // ',' star_target
+ (_tmp_234_var = _tmp_234_rule(p)) // ',' star_target
)
{
- _res = _tmp_231_var;
+ _res = _tmp_234_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
return NULL;
}
D(fprintf(stderr, "%*c> _loop1_131[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(',' star_target)"));
- void *_tmp_232_var;
+ void *_tmp_235_var;
while (
- (_tmp_232_var = _tmp_232_rule(p)) // ',' star_target
+ (_tmp_235_var = _tmp_235_rule(p)) // ',' star_target
)
{
- _res = _tmp_232_var;
+ _res = _tmp_235_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
D(fprintf(stderr, "%*c> _tmp_148[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'else'"));
Token * _keyword;
if (
- (_keyword = _PyPegen_expect_token(p, 637)) // token='else'
+ (_keyword = _PyPegen_expect_token(p, 642)) // token='else'
)
{
D(fprintf(stderr, "%*c+ _tmp_148[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'else'"));
return NULL;
}
D(fprintf(stderr, "%*c> _loop0_153[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
- void *_tmp_233_var;
+ void *_tmp_236_var;
while (
- (_tmp_233_var = _tmp_233_rule(p)) // star_targets '='
+ (_tmp_236_var = _tmp_236_rule(p)) // star_targets '='
)
{
- _res = _tmp_233_var;
+ _res = _tmp_236_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
return NULL;
}
D(fprintf(stderr, "%*c> _loop0_154[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(star_targets '=')"));
- void *_tmp_234_var;
+ void *_tmp_237_var;
while (
- (_tmp_234_var = _tmp_234_rule(p)) // star_targets '='
+ (_tmp_237_var = _tmp_237_rule(p)) // star_targets '='
)
{
- _res = _tmp_234_var;
+ _res = _tmp_237_var;
if (_n == _children_capacity) {
_children_capacity *= 2;
void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
}
D(fprintf(stderr, "%*c> _tmp_170[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
Token * _literal;
- void *_tmp_235_var;
+ void *_tmp_238_var;
if (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
&&
- (_tmp_235_var = _tmp_235_rule(p)) // ')' | '**'
+ (_tmp_238_var = _tmp_238_rule(p)) // ')' | '**'
)
{
D(fprintf(stderr, "%*c+ _tmp_170[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (')' | '**')"));
- _res = _PyPegen_dummy_name(p, _literal, _tmp_235_var);
+ _res = _PyPegen_dummy_name(p, _literal, _tmp_238_var);
goto done;
}
p->mark = _mark;
}
D(fprintf(stderr, "%*c> _tmp_188[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
Token * _literal;
- void *_tmp_236_var;
+ void *_tmp_239_var;
if (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
&&
- (_tmp_236_var = _tmp_236_rule(p)) // ':' | '**'
+ (_tmp_239_var = _tmp_239_rule(p)) // ':' | '**'
)
{
D(fprintf(stderr, "%*c+ _tmp_188[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' (':' | '**')"));
- _res = _PyPegen_dummy_name(p, _literal, _tmp_236_var);
+ _res = _PyPegen_dummy_name(p, _literal, _tmp_239_var);
goto done;
}
p->mark = _mark;
while (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
&&
- (elem = _tmp_237_rule(p)) // expression ['as' star_target]
+ (elem = _tmp_240_rule(p)) // expression ['as' star_target]
)
{
_res = elem;
void *elem;
asdl_seq * seq;
if (
- (elem = _tmp_237_rule(p)) // expression ['as' star_target]
+ (elem = _tmp_240_rule(p)) // expression ['as' star_target]
&&
(seq = _loop0_195_rule(p)) // _loop0_195
)
while (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
&&
- (elem = _tmp_238_rule(p)) // expressions ['as' star_target]
+ (elem = _tmp_241_rule(p)) // expressions ['as' star_target]
)
{
_res = elem;
void *elem;
asdl_seq * seq;
if (
- (elem = _tmp_238_rule(p)) // expressions ['as' star_target]
+ (elem = _tmp_241_rule(p)) // expressions ['as' star_target]
&&
(seq = _loop0_197_rule(p)) // _loop0_197
)
while (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
&&
- (elem = _tmp_239_rule(p)) // expression ['as' star_target]
+ (elem = _tmp_242_rule(p)) // expression ['as' star_target]
)
{
_res = elem;
void *elem;
asdl_seq * seq;
if (
- (elem = _tmp_239_rule(p)) // expression ['as' star_target]
+ (elem = _tmp_242_rule(p)) // expression ['as' star_target]
&&
(seq = _loop0_199_rule(p)) // _loop0_199
)
while (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
&&
- (elem = _tmp_240_rule(p)) // expressions ['as' star_target]
+ (elem = _tmp_243_rule(p)) // expressions ['as' star_target]
)
{
_res = elem;
void *elem;
asdl_seq * seq;
if (
- (elem = _tmp_240_rule(p)) // expressions ['as' star_target]
+ (elem = _tmp_243_rule(p)) // expressions ['as' star_target]
&&
(seq = _loop0_201_rule(p)) // _loop0_201
)
D(fprintf(stderr, "%*c> _tmp_202[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'except'"));
Token * _keyword;
if (
- (_keyword = _PyPegen_expect_token(p, 629)) // token='except'
+ (_keyword = _PyPegen_expect_token(p, 634)) // token='except'
)
{
D(fprintf(stderr, "%*c+ _tmp_202[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'except'"));
D(fprintf(stderr, "%*c> _tmp_202[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'finally'"));
Token * _keyword;
if (
- (_keyword = _PyPegen_expect_token(p, 625)) // token='finally'
+ (_keyword = _PyPegen_expect_token(p, 630)) // token='finally'
)
{
D(fprintf(stderr, "%*c+ _tmp_202[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'finally'"));
return _seq;
}
-// _tmp_204: (except_block+ except_star_block) | (except_star_block+ except_block)
-static void *
-_tmp_204_rule(Parser *p)
+// _loop1_204: except_block
+static asdl_seq *
+_loop1_204_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- void * _res = NULL;
+ void *_res = NULL;
int _mark = p->mark;
- { // (except_block+ except_star_block)
+ int _start_mark = p->mark;
+ void **_children = PyMem_Malloc(sizeof(void *));
+ if (!_children) {
+ p->error_indicator = 1;
+ PyErr_NoMemory();
+ p->level--;
+ return NULL;
+ }
+ Py_ssize_t _children_capacity = 1;
+ Py_ssize_t _n = 0;
+ { // except_block
if (p->error_indicator) {
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_204[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(except_block+ except_star_block)"));
- void *_tmp_241_var;
- if (
- (_tmp_241_var = _tmp_241_rule(p)) // except_block+ except_star_block
+ D(fprintf(stderr, "%*c> _loop1_204[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "except_block"));
+ excepthandler_ty except_block_var;
+ while (
+ (except_block_var = except_block_rule(p)) // except_block
)
{
- D(fprintf(stderr, "%*c+ _tmp_204[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(except_block+ except_star_block)"));
- _res = _tmp_241_var;
- goto done;
+ _res = except_block_var;
+ if (_n == _children_capacity) {
+ _children_capacity *= 2;
+ void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
+ if (!_new_children) {
+ p->error_indicator = 1;
+ PyErr_NoMemory();
+ p->level--;
+ return NULL;
+ }
+ _children = _new_children;
+ }
+ _children[_n++] = _res;
+ _mark = p->mark;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_204[%d-%d]: %s failed!\n", p->level, ' ',
- p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(except_block+ except_star_block)"));
+ D(fprintf(stderr, "%*c%s _loop1_204[%d-%d]: %s failed!\n", p->level, ' ',
+ p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "except_block"));
+ }
+ if (_n == 0 || p->error_indicator) {
+ PyMem_Free(_children);
+ p->level--;
+ return NULL;
+ }
+ asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
+ if (!_seq) {
+ PyMem_Free(_children);
+ p->error_indicator = 1;
+ PyErr_NoMemory();
+ p->level--;
+ return NULL;
+ }
+ for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
+ PyMem_Free(_children);
+ _PyPegen_insert_memo(p, _start_mark, _loop1_204_type, _seq);
+ p->level--;
+ return _seq;
+}
+
+// _tmp_205: 'as' NAME
+static void *
+_tmp_205_rule(Parser *p)
+{
+ if (p->level++ == MAXSTACK) {
+ p->error_indicator = 1;
+ PyErr_NoMemory();
+ }
+ if (p->error_indicator) {
+ p->level--;
+ return NULL;
}
- { // (except_star_block+ except_block)
+ void * _res = NULL;
+ int _mark = p->mark;
+ { // 'as' NAME
if (p->error_indicator) {
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_204[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(except_star_block+ except_block)"));
- void *_tmp_242_var;
+ D(fprintf(stderr, "%*c> _tmp_205[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ Token * _keyword;
+ expr_ty name_var;
if (
- (_tmp_242_var = _tmp_242_rule(p)) // except_star_block+ except_block
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
+ &&
+ (name_var = _PyPegen_name_token(p)) // NAME
)
{
- D(fprintf(stderr, "%*c+ _tmp_204[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(except_star_block+ except_block)"));
- _res = _tmp_242_var;
+ D(fprintf(stderr, "%*c+ _tmp_205[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ _res = _PyPegen_dummy_name(p, _keyword, name_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_204[%d-%d]: %s failed!\n", p->level, ' ',
- p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(except_star_block+ except_block)"));
+ D(fprintf(stderr, "%*c%s _tmp_205[%d-%d]: %s failed!\n", p->level, ' ',
+ p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' NAME"));
}
_res = NULL;
done:
return _res;
}
-// _loop0_205: block
+// _loop0_206: block
static asdl_seq *
-_loop0_205_rule(Parser *p)
+_loop0_206_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _loop0_205[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "block"));
+ D(fprintf(stderr, "%*c> _loop0_206[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "block"));
asdl_stmt_seq* block_var;
while (
(block_var = block_rule(p)) // block
_mark = p->mark;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _loop0_205[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _loop0_206[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "block"));
}
asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
}
for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
PyMem_Free(_children);
- _PyPegen_insert_memo(p, _start_mark, _loop0_205_type, _seq);
+ _PyPegen_insert_memo(p, _start_mark, _loop0_206_type, _seq);
p->level--;
return _seq;
}
-// _tmp_206: 'as' NAME
+// _loop1_207: except_star_block
+static asdl_seq *
+_loop1_207_rule(Parser *p)
+{
+ if (p->level++ == MAXSTACK) {
+ p->error_indicator = 1;
+ PyErr_NoMemory();
+ }
+ if (p->error_indicator) {
+ p->level--;
+ return NULL;
+ }
+ void *_res = NULL;
+ int _mark = p->mark;
+ int _start_mark = p->mark;
+ void **_children = PyMem_Malloc(sizeof(void *));
+ if (!_children) {
+ p->error_indicator = 1;
+ PyErr_NoMemory();
+ p->level--;
+ return NULL;
+ }
+ Py_ssize_t _children_capacity = 1;
+ Py_ssize_t _n = 0;
+ { // except_star_block
+ if (p->error_indicator) {
+ p->level--;
+ return NULL;
+ }
+ D(fprintf(stderr, "%*c> _loop1_207[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "except_star_block"));
+ excepthandler_ty except_star_block_var;
+ while (
+ (except_star_block_var = except_star_block_rule(p)) // except_star_block
+ )
+ {
+ _res = except_star_block_var;
+ if (_n == _children_capacity) {
+ _children_capacity *= 2;
+ void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
+ if (!_new_children) {
+ p->error_indicator = 1;
+ PyErr_NoMemory();
+ p->level--;
+ return NULL;
+ }
+ _children = _new_children;
+ }
+ _children[_n++] = _res;
+ _mark = p->mark;
+ }
+ p->mark = _mark;
+ D(fprintf(stderr, "%*c%s _loop1_207[%d-%d]: %s failed!\n", p->level, ' ',
+ p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "except_star_block"));
+ }
+ if (_n == 0 || p->error_indicator) {
+ PyMem_Free(_children);
+ p->level--;
+ return NULL;
+ }
+ asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
+ if (!_seq) {
+ PyMem_Free(_children);
+ p->error_indicator = 1;
+ PyErr_NoMemory();
+ p->level--;
+ return NULL;
+ }
+ for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
+ PyMem_Free(_children);
+ _PyPegen_insert_memo(p, _start_mark, _loop1_207_type, _seq);
+ p->level--;
+ return _seq;
+}
+
+// _tmp_208: expression ['as' NAME]
+static void *
+_tmp_208_rule(Parser *p)
+{
+ if (p->level++ == MAXSTACK) {
+ p->error_indicator = 1;
+ PyErr_NoMemory();
+ }
+ if (p->error_indicator) {
+ p->level--;
+ return NULL;
+ }
+ void * _res = NULL;
+ int _mark = p->mark;
+ { // expression ['as' NAME]
+ if (p->error_indicator) {
+ p->level--;
+ return NULL;
+ }
+ D(fprintf(stderr, "%*c> _tmp_208[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression ['as' NAME]"));
+ void *_opt_var;
+ UNUSED(_opt_var); // Silence compiler warnings
+ expr_ty expression_var;
+ if (
+ (expression_var = expression_rule(p)) // expression
+ &&
+ (_opt_var = _tmp_244_rule(p), !p->error_indicator) // ['as' NAME]
+ )
+ {
+ D(fprintf(stderr, "%*c+ _tmp_208[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression ['as' NAME]"));
+ _res = _PyPegen_dummy_name(p, expression_var, _opt_var);
+ goto done;
+ }
+ p->mark = _mark;
+ D(fprintf(stderr, "%*c%s _tmp_208[%d-%d]: %s failed!\n", p->level, ' ',
+ p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "expression ['as' NAME]"));
+ }
+ _res = NULL;
+ done:
+ p->level--;
+ return _res;
+}
+
+// _tmp_209: 'as' NAME
static void *
-_tmp_206_rule(Parser *p)
+_tmp_209_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_206[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ D(fprintf(stderr, "%*c> _tmp_209[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
Token * _keyword;
expr_ty name_var;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(name_var = _PyPegen_name_token(p)) // NAME
)
{
- D(fprintf(stderr, "%*c+ _tmp_206[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ D(fprintf(stderr, "%*c+ _tmp_209[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
_res = _PyPegen_dummy_name(p, _keyword, name_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_206[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_209[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' NAME"));
}
_res = NULL;
return _res;
}
-// _tmp_207: 'as' NAME
+// _tmp_210: 'as' NAME
static void *
-_tmp_207_rule(Parser *p)
+_tmp_210_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_207[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ D(fprintf(stderr, "%*c> _tmp_210[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
Token * _keyword;
expr_ty name_var;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(name_var = _PyPegen_name_token(p)) // NAME
)
{
- D(fprintf(stderr, "%*c+ _tmp_207[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ D(fprintf(stderr, "%*c+ _tmp_210[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
_res = _PyPegen_dummy_name(p, _keyword, name_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_207[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_210[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' NAME"));
}
_res = NULL;
return _res;
}
-// _tmp_208: NEWLINE | ':'
+// _tmp_211: NEWLINE | ':'
static void *
-_tmp_208_rule(Parser *p)
+_tmp_211_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_208[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NEWLINE"));
+ D(fprintf(stderr, "%*c> _tmp_211[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "NEWLINE"));
Token * newline_var;
if (
(newline_var = _PyPegen_expect_token(p, NEWLINE)) // token='NEWLINE'
)
{
- D(fprintf(stderr, "%*c+ _tmp_208[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NEWLINE"));
+ D(fprintf(stderr, "%*c+ _tmp_211[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "NEWLINE"));
_res = newline_var;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_208[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_211[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "NEWLINE"));
}
{ // ':'
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_208[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
+ D(fprintf(stderr, "%*c> _tmp_211[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
)
{
- D(fprintf(stderr, "%*c+ _tmp_208[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
+ D(fprintf(stderr, "%*c+ _tmp_211[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_208[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_211[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "':'"));
}
_res = NULL;
return _res;
}
-// _tmp_209: 'as' NAME
+// _tmp_212: 'as' NAME
static void *
-_tmp_209_rule(Parser *p)
+_tmp_212_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_209[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ D(fprintf(stderr, "%*c> _tmp_212[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
Token * _keyword;
expr_ty name_var;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(name_var = _PyPegen_name_token(p)) // NAME
)
{
- D(fprintf(stderr, "%*c+ _tmp_209[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ D(fprintf(stderr, "%*c+ _tmp_212[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
_res = _PyPegen_dummy_name(p, _keyword, name_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_209[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_212[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' NAME"));
}
_res = NULL;
return _res;
}
-// _tmp_210: 'as' NAME
+// _tmp_213: 'as' NAME
static void *
-_tmp_210_rule(Parser *p)
+_tmp_213_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_210[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ D(fprintf(stderr, "%*c> _tmp_213[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
Token * _keyword;
expr_ty name_var;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(name_var = _PyPegen_name_token(p)) // NAME
)
{
- D(fprintf(stderr, "%*c+ _tmp_210[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ D(fprintf(stderr, "%*c+ _tmp_213[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
_res = _PyPegen_dummy_name(p, _keyword, name_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_210[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_213[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' NAME"));
}
_res = NULL;
return _res;
}
-// _tmp_211: positional_patterns ','
+// _tmp_214: positional_patterns ','
static void *
-_tmp_211_rule(Parser *p)
+_tmp_214_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_211[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "positional_patterns ','"));
+ D(fprintf(stderr, "%*c> _tmp_214[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "positional_patterns ','"));
Token * _literal;
asdl_pattern_seq* positional_patterns_var;
if (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
)
{
- D(fprintf(stderr, "%*c+ _tmp_211[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "positional_patterns ','"));
+ D(fprintf(stderr, "%*c+ _tmp_214[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "positional_patterns ','"));
_res = _PyPegen_dummy_name(p, positional_patterns_var, _literal);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_211[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_214[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "positional_patterns ','"));
}
_res = NULL;
return _res;
}
-// _tmp_212: '->' expression
+// _tmp_215: '->' expression
static void *
-_tmp_212_rule(Parser *p)
+_tmp_215_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_212[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'->' expression"));
+ D(fprintf(stderr, "%*c> _tmp_215[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'->' expression"));
Token * _literal;
expr_ty expression_var;
if (
(expression_var = expression_rule(p)) // expression
)
{
- D(fprintf(stderr, "%*c+ _tmp_212[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'->' expression"));
+ D(fprintf(stderr, "%*c+ _tmp_215[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'->' expression"));
_res = _PyPegen_dummy_name(p, _literal, expression_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_212[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_215[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'->' expression"));
}
_res = NULL;
return _res;
}
-// _tmp_213: '(' arguments? ')'
+// _tmp_216: '(' arguments? ')'
static void *
-_tmp_213_rule(Parser *p)
+_tmp_216_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_213[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
+ D(fprintf(stderr, "%*c> _tmp_216[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
Token * _literal;
Token * _literal_1;
void *_opt_var;
(_literal_1 = _PyPegen_expect_token(p, 8)) // token=')'
)
{
- D(fprintf(stderr, "%*c+ _tmp_213[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
+ D(fprintf(stderr, "%*c+ _tmp_216[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
_res = _PyPegen_dummy_name(p, _literal, _opt_var, _literal_1);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_213[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_216[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'(' arguments? ')'"));
}
_res = NULL;
return _res;
}
-// _tmp_214: '(' arguments? ')'
+// _tmp_217: '(' arguments? ')'
static void *
-_tmp_214_rule(Parser *p)
+_tmp_217_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_214[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
+ D(fprintf(stderr, "%*c> _tmp_217[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
Token * _literal;
Token * _literal_1;
void *_opt_var;
(_literal_1 = _PyPegen_expect_token(p, 8)) // token=')'
)
{
- D(fprintf(stderr, "%*c+ _tmp_214[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
+ D(fprintf(stderr, "%*c+ _tmp_217[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'(' arguments? ')'"));
_res = _PyPegen_dummy_name(p, _literal, _opt_var, _literal_1);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_214[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_217[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'(' arguments? ')'"));
}
_res = NULL;
return _res;
}
-// _loop0_216: ',' double_starred_kvpair
+// _loop0_219: ',' double_starred_kvpair
static asdl_seq *
-_loop0_216_rule(Parser *p)
+_loop0_219_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _loop0_216[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' double_starred_kvpair"));
+ D(fprintf(stderr, "%*c> _loop0_219[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' double_starred_kvpair"));
Token * _literal;
KeyValuePair* elem;
while (
_mark = p->mark;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _loop0_216[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _loop0_219[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' double_starred_kvpair"));
}
asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
}
for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
PyMem_Free(_children);
- _PyPegen_insert_memo(p, _start_mark, _loop0_216_type, _seq);
+ _PyPegen_insert_memo(p, _start_mark, _loop0_219_type, _seq);
p->level--;
return _seq;
}
-// _gather_215: double_starred_kvpair _loop0_216
+// _gather_218: double_starred_kvpair _loop0_219
static asdl_seq *
-_gather_215_rule(Parser *p)
+_gather_218_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
}
asdl_seq * _res = NULL;
int _mark = p->mark;
- { // double_starred_kvpair _loop0_216
+ { // double_starred_kvpair _loop0_219
if (p->error_indicator) {
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _gather_215[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "double_starred_kvpair _loop0_216"));
+ D(fprintf(stderr, "%*c> _gather_218[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "double_starred_kvpair _loop0_219"));
KeyValuePair* elem;
asdl_seq * seq;
if (
(elem = double_starred_kvpair_rule(p)) // double_starred_kvpair
&&
- (seq = _loop0_216_rule(p)) // _loop0_216
+ (seq = _loop0_219_rule(p)) // _loop0_219
)
{
- D(fprintf(stderr, "%*c+ _gather_215[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "double_starred_kvpair _loop0_216"));
+ D(fprintf(stderr, "%*c+ _gather_218[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "double_starred_kvpair _loop0_219"));
_res = _PyPegen_seq_insert_in_front(p, elem, seq);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _gather_215[%d-%d]: %s failed!\n", p->level, ' ',
- p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "double_starred_kvpair _loop0_216"));
+ D(fprintf(stderr, "%*c%s _gather_218[%d-%d]: %s failed!\n", p->level, ' ',
+ p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "double_starred_kvpair _loop0_219"));
}
_res = NULL;
done:
return _res;
}
-// _tmp_217: '}' | ','
+// _tmp_220: '}' | ','
static void *
-_tmp_217_rule(Parser *p)
+_tmp_220_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_217[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'}'"));
+ D(fprintf(stderr, "%*c> _tmp_220[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'}'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 26)) // token='}'
)
{
- D(fprintf(stderr, "%*c+ _tmp_217[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'}'"));
+ D(fprintf(stderr, "%*c+ _tmp_220[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'}'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_217[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_220[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'}'"));
}
{ // ','
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_217[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','"));
+ D(fprintf(stderr, "%*c> _tmp_220[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
)
{
- D(fprintf(stderr, "%*c+ _tmp_217[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','"));
+ D(fprintf(stderr, "%*c+ _tmp_220[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_217[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_220[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "','"));
}
_res = NULL;
return _res;
}
-// _tmp_218: '}' | ','
+// _tmp_221: '}' | ','
static void *
-_tmp_218_rule(Parser *p)
+_tmp_221_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_218[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'}'"));
+ D(fprintf(stderr, "%*c> _tmp_221[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'}'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 26)) // token='}'
)
{
- D(fprintf(stderr, "%*c+ _tmp_218[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'}'"));
+ D(fprintf(stderr, "%*c+ _tmp_221[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'}'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_218[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_221[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'}'"));
}
{ // ','
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_218[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','"));
+ D(fprintf(stderr, "%*c> _tmp_221[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "','"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 12)) // token=','
)
{
- D(fprintf(stderr, "%*c+ _tmp_218[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','"));
+ D(fprintf(stderr, "%*c+ _tmp_221[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "','"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_218[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_221[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "','"));
}
_res = NULL;
return _res;
}
-// _tmp_219: star_targets '='
+// _tmp_222: star_targets '='
static void *
-_tmp_219_rule(Parser *p)
+_tmp_222_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_219[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+ D(fprintf(stderr, "%*c> _tmp_222[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
Token * _literal;
expr_ty z;
if (
(_literal = _PyPegen_expect_token(p, 22)) // token='='
)
{
- D(fprintf(stderr, "%*c+ _tmp_219[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+ D(fprintf(stderr, "%*c+ _tmp_222[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
_res = z;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_219[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_222[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_targets '='"));
}
_res = NULL;
return _res;
}
-// _tmp_220: '.' | '...'
+// _tmp_223: '.' | '...'
static void *
-_tmp_220_rule(Parser *p)
+_tmp_223_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_220[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
+ D(fprintf(stderr, "%*c> _tmp_223[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 23)) // token='.'
)
{
- D(fprintf(stderr, "%*c+ _tmp_220[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
+ D(fprintf(stderr, "%*c+ _tmp_223[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_220[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_223[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'.'"));
}
{ // '...'
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_220[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
+ D(fprintf(stderr, "%*c> _tmp_223[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 52)) // token='...'
)
{
- D(fprintf(stderr, "%*c+ _tmp_220[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
+ D(fprintf(stderr, "%*c+ _tmp_223[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_220[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_223[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'...'"));
}
_res = NULL;
return _res;
}
-// _tmp_221: '.' | '...'
+// _tmp_224: '.' | '...'
static void *
-_tmp_221_rule(Parser *p)
+_tmp_224_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_221[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
+ D(fprintf(stderr, "%*c> _tmp_224[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'.'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 23)) // token='.'
)
{
- D(fprintf(stderr, "%*c+ _tmp_221[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
+ D(fprintf(stderr, "%*c+ _tmp_224[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'.'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_221[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_224[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'.'"));
}
{ // '...'
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_221[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
+ D(fprintf(stderr, "%*c> _tmp_224[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'...'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 52)) // token='...'
)
{
- D(fprintf(stderr, "%*c+ _tmp_221[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
+ D(fprintf(stderr, "%*c+ _tmp_224[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'...'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_221[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_224[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'...'"));
}
_res = NULL;
return _res;
}
-// _tmp_222: '@' named_expression NEWLINE
+// _tmp_225: '@' named_expression NEWLINE
static void *
-_tmp_222_rule(Parser *p)
+_tmp_225_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_222[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
+ D(fprintf(stderr, "%*c> _tmp_225[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
Token * _literal;
expr_ty f;
Token * newline_var;
(newline_var = _PyPegen_expect_token(p, NEWLINE)) // token='NEWLINE'
)
{
- D(fprintf(stderr, "%*c+ _tmp_222[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
+ D(fprintf(stderr, "%*c+ _tmp_225[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'@' named_expression NEWLINE"));
_res = f;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_222[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_225[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'@' named_expression NEWLINE"));
}
_res = NULL;
return _res;
}
-// _tmp_223: ',' expression
+// _tmp_226: ',' expression
static void *
-_tmp_223_rule(Parser *p)
+_tmp_226_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_223[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' expression"));
+ D(fprintf(stderr, "%*c> _tmp_226[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' expression"));
Token * _literal;
expr_ty c;
if (
(c = expression_rule(p)) // expression
)
{
- D(fprintf(stderr, "%*c+ _tmp_223[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' expression"));
+ D(fprintf(stderr, "%*c+ _tmp_226[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' expression"));
_res = c;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_223[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_226[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' expression"));
}
_res = NULL;
return _res;
}
-// _tmp_224: ',' star_expression
+// _tmp_227: ',' star_expression
static void *
-_tmp_224_rule(Parser *p)
+_tmp_227_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_224[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
+ D(fprintf(stderr, "%*c> _tmp_227[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
Token * _literal;
expr_ty c;
if (
(c = star_expression_rule(p)) // star_expression
)
{
- D(fprintf(stderr, "%*c+ _tmp_224[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
+ D(fprintf(stderr, "%*c+ _tmp_227[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_expression"));
_res = c;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_224[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_227[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_expression"));
}
_res = NULL;
return _res;
}
-// _tmp_225: 'or' conjunction
+// _tmp_228: 'or' conjunction
static void *
-_tmp_225_rule(Parser *p)
+_tmp_228_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_225[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
+ D(fprintf(stderr, "%*c> _tmp_228[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
Token * _keyword;
expr_ty c;
if (
(c = conjunction_rule(p)) // conjunction
)
{
- D(fprintf(stderr, "%*c+ _tmp_225[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
+ D(fprintf(stderr, "%*c+ _tmp_228[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'or' conjunction"));
_res = c;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_225[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_228[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'or' conjunction"));
}
_res = NULL;
return _res;
}
-// _tmp_226: 'and' inversion
+// _tmp_229: 'and' inversion
static void *
-_tmp_226_rule(Parser *p)
+_tmp_229_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_226[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
+ D(fprintf(stderr, "%*c> _tmp_229[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
Token * _keyword;
expr_ty c;
if (
(c = inversion_rule(p)) // inversion
)
{
- D(fprintf(stderr, "%*c+ _tmp_226[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
+ D(fprintf(stderr, "%*c+ _tmp_229[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'and' inversion"));
_res = c;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_226[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_229[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'and' inversion"));
}
_res = NULL;
return _res;
}
-// _tmp_227: slice | starred_expression
+// _tmp_230: slice | starred_expression
static void *
-_tmp_227_rule(Parser *p)
+_tmp_230_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_227[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "slice"));
+ D(fprintf(stderr, "%*c> _tmp_230[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "slice"));
expr_ty slice_var;
if (
(slice_var = slice_rule(p)) // slice
)
{
- D(fprintf(stderr, "%*c+ _tmp_227[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "slice"));
+ D(fprintf(stderr, "%*c+ _tmp_230[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "slice"));
_res = slice_var;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_227[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_230[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "slice"));
}
{ // starred_expression
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_227[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "starred_expression"));
+ D(fprintf(stderr, "%*c> _tmp_230[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "starred_expression"));
expr_ty starred_expression_var;
if (
(starred_expression_var = starred_expression_rule(p)) // starred_expression
)
{
- D(fprintf(stderr, "%*c+ _tmp_227[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "starred_expression"));
+ D(fprintf(stderr, "%*c+ _tmp_230[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "starred_expression"));
_res = starred_expression_var;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_227[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_230[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "starred_expression"));
}
_res = NULL;
return _res;
}
-// _tmp_228: 'if' disjunction
+// _tmp_231: 'if' disjunction
static void *
-_tmp_228_rule(Parser *p)
+_tmp_231_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_228[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+ D(fprintf(stderr, "%*c> _tmp_231[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
Token * _keyword;
expr_ty z;
if (
- (_keyword = _PyPegen_expect_token(p, 634)) // token='if'
+ (_keyword = _PyPegen_expect_token(p, 639)) // token='if'
&&
(z = disjunction_rule(p)) // disjunction
)
{
- D(fprintf(stderr, "%*c+ _tmp_228[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+ D(fprintf(stderr, "%*c+ _tmp_231[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
_res = z;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_228[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_231[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'if' disjunction"));
}
_res = NULL;
return _res;
}
-// _tmp_229: 'if' disjunction
+// _tmp_232: 'if' disjunction
static void *
-_tmp_229_rule(Parser *p)
+_tmp_232_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_229[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+ D(fprintf(stderr, "%*c> _tmp_232[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
Token * _keyword;
expr_ty z;
if (
- (_keyword = _PyPegen_expect_token(p, 634)) // token='if'
+ (_keyword = _PyPegen_expect_token(p, 639)) // token='if'
&&
(z = disjunction_rule(p)) // disjunction
)
{
- D(fprintf(stderr, "%*c+ _tmp_229[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
+ D(fprintf(stderr, "%*c+ _tmp_232[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'if' disjunction"));
_res = z;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_229[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_232[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'if' disjunction"));
}
_res = NULL;
return _res;
}
-// _tmp_230: starred_expression | (assignment_expression | expression !':=') !'='
+// _tmp_233: starred_expression | (assignment_expression | expression !':=') !'='
static void *
-_tmp_230_rule(Parser *p)
+_tmp_233_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_230[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "starred_expression"));
+ D(fprintf(stderr, "%*c> _tmp_233[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "starred_expression"));
expr_ty starred_expression_var;
if (
(starred_expression_var = starred_expression_rule(p)) // starred_expression
)
{
- D(fprintf(stderr, "%*c+ _tmp_230[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "starred_expression"));
+ D(fprintf(stderr, "%*c+ _tmp_233[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "starred_expression"));
_res = starred_expression_var;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_230[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_233[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "starred_expression"));
}
{ // (assignment_expression | expression !':=') !'='
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_230[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(assignment_expression | expression !':=') !'='"));
- void *_tmp_243_var;
+ D(fprintf(stderr, "%*c> _tmp_233[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "(assignment_expression | expression !':=') !'='"));
+ void *_tmp_245_var;
if (
- (_tmp_243_var = _tmp_243_rule(p)) // assignment_expression | expression !':='
+ (_tmp_245_var = _tmp_245_rule(p)) // assignment_expression | expression !':='
&&
_PyPegen_lookahead_with_int(0, _PyPegen_expect_token, p, 22) // token='='
)
{
- D(fprintf(stderr, "%*c+ _tmp_230[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(assignment_expression | expression !':=') !'='"));
- _res = _tmp_243_var;
+ D(fprintf(stderr, "%*c+ _tmp_233[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "(assignment_expression | expression !':=') !'='"));
+ _res = _tmp_245_var;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_230[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_233[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "(assignment_expression | expression !':=') !'='"));
}
_res = NULL;
return _res;
}
-// _tmp_231: ',' star_target
+// _tmp_234: ',' star_target
static void *
-_tmp_231_rule(Parser *p)
+_tmp_234_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_231[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+ D(fprintf(stderr, "%*c> _tmp_234[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
Token * _literal;
expr_ty c;
if (
(c = star_target_rule(p)) // star_target
)
{
- D(fprintf(stderr, "%*c+ _tmp_231[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+ D(fprintf(stderr, "%*c+ _tmp_234[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
_res = c;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_231[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_234[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_target"));
}
_res = NULL;
return _res;
}
-// _tmp_232: ',' star_target
+// _tmp_235: ',' star_target
static void *
-_tmp_232_rule(Parser *p)
+_tmp_235_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_232[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+ D(fprintf(stderr, "%*c> _tmp_235[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "',' star_target"));
Token * _literal;
expr_ty c;
if (
(c = star_target_rule(p)) // star_target
)
{
- D(fprintf(stderr, "%*c+ _tmp_232[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
+ D(fprintf(stderr, "%*c+ _tmp_235[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "',' star_target"));
_res = c;
if (_res == NULL && PyErr_Occurred()) {
p->error_indicator = 1;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_232[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_235[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "',' star_target"));
}
_res = NULL;
return _res;
}
-// _tmp_233: star_targets '='
+// _tmp_236: star_targets '='
static void *
-_tmp_233_rule(Parser *p)
+_tmp_236_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_233[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+ D(fprintf(stderr, "%*c> _tmp_236[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
Token * _literal;
expr_ty star_targets_var;
if (
(_literal = _PyPegen_expect_token(p, 22)) // token='='
)
{
- D(fprintf(stderr, "%*c+ _tmp_233[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+ D(fprintf(stderr, "%*c+ _tmp_236[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
_res = _PyPegen_dummy_name(p, star_targets_var, _literal);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_233[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_236[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_targets '='"));
}
_res = NULL;
return _res;
}
-// _tmp_234: star_targets '='
+// _tmp_237: star_targets '='
static void *
-_tmp_234_rule(Parser *p)
+_tmp_237_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_234[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+ D(fprintf(stderr, "%*c> _tmp_237[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
Token * _literal;
expr_ty star_targets_var;
if (
(_literal = _PyPegen_expect_token(p, 22)) // token='='
)
{
- D(fprintf(stderr, "%*c+ _tmp_234[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
+ D(fprintf(stderr, "%*c+ _tmp_237[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "star_targets '='"));
_res = _PyPegen_dummy_name(p, star_targets_var, _literal);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_234[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_237[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "star_targets '='"));
}
_res = NULL;
return _res;
}
-// _tmp_235: ')' | '**'
+// _tmp_238: ')' | '**'
static void *
-_tmp_235_rule(Parser *p)
+_tmp_238_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_235[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
+ D(fprintf(stderr, "%*c> _tmp_238[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "')'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 8)) // token=')'
)
{
- D(fprintf(stderr, "%*c+ _tmp_235[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
+ D(fprintf(stderr, "%*c+ _tmp_238[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "')'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_235[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_238[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "')'"));
}
{ // '**'
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_235[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
+ D(fprintf(stderr, "%*c> _tmp_238[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 35)) // token='**'
)
{
- D(fprintf(stderr, "%*c+ _tmp_235[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
+ D(fprintf(stderr, "%*c+ _tmp_238[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_235[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_238[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'**'"));
}
_res = NULL;
return _res;
}
-// _tmp_236: ':' | '**'
+// _tmp_239: ':' | '**'
static void *
-_tmp_236_rule(Parser *p)
+_tmp_239_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_236[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
+ D(fprintf(stderr, "%*c> _tmp_239[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "':'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 11)) // token=':'
)
{
- D(fprintf(stderr, "%*c+ _tmp_236[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
+ D(fprintf(stderr, "%*c+ _tmp_239[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "':'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_236[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_239[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "':'"));
}
{ // '**'
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_236[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
+ D(fprintf(stderr, "%*c> _tmp_239[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'**'"));
Token * _literal;
if (
(_literal = _PyPegen_expect_token(p, 35)) // token='**'
)
{
- D(fprintf(stderr, "%*c+ _tmp_236[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
+ D(fprintf(stderr, "%*c+ _tmp_239[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'**'"));
_res = _literal;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_236[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_239[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'**'"));
}
_res = NULL;
return _res;
}
-// _tmp_237: expression ['as' star_target]
+// _tmp_240: expression ['as' star_target]
static void *
-_tmp_237_rule(Parser *p)
+_tmp_240_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_237[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
+ D(fprintf(stderr, "%*c> _tmp_240[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
void *_opt_var;
UNUSED(_opt_var); // Silence compiler warnings
expr_ty expression_var;
if (
(expression_var = expression_rule(p)) // expression
&&
- (_opt_var = _tmp_244_rule(p), !p->error_indicator) // ['as' star_target]
+ (_opt_var = _tmp_246_rule(p), !p->error_indicator) // ['as' star_target]
)
{
- D(fprintf(stderr, "%*c+ _tmp_237[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
+ D(fprintf(stderr, "%*c+ _tmp_240[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
_res = _PyPegen_dummy_name(p, expression_var, _opt_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_237[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_240[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "expression ['as' star_target]"));
}
_res = NULL;
return _res;
}
-// _tmp_238: expressions ['as' star_target]
+// _tmp_241: expressions ['as' star_target]
static void *
-_tmp_238_rule(Parser *p)
+_tmp_241_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_238[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
+ D(fprintf(stderr, "%*c> _tmp_241[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
void *_opt_var;
UNUSED(_opt_var); // Silence compiler warnings
expr_ty expressions_var;
if (
(expressions_var = expressions_rule(p)) // expressions
&&
- (_opt_var = _tmp_245_rule(p), !p->error_indicator) // ['as' star_target]
+ (_opt_var = _tmp_247_rule(p), !p->error_indicator) // ['as' star_target]
)
{
- D(fprintf(stderr, "%*c+ _tmp_238[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
+ D(fprintf(stderr, "%*c+ _tmp_241[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
_res = _PyPegen_dummy_name(p, expressions_var, _opt_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_238[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_241[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "expressions ['as' star_target]"));
}
_res = NULL;
return _res;
}
-// _tmp_239: expression ['as' star_target]
+// _tmp_242: expression ['as' star_target]
static void *
-_tmp_239_rule(Parser *p)
+_tmp_242_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_239[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
+ D(fprintf(stderr, "%*c> _tmp_242[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
void *_opt_var;
UNUSED(_opt_var); // Silence compiler warnings
expr_ty expression_var;
if (
(expression_var = expression_rule(p)) // expression
&&
- (_opt_var = _tmp_246_rule(p), !p->error_indicator) // ['as' star_target]
+ (_opt_var = _tmp_248_rule(p), !p->error_indicator) // ['as' star_target]
)
{
- D(fprintf(stderr, "%*c+ _tmp_239[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
+ D(fprintf(stderr, "%*c+ _tmp_242[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression ['as' star_target]"));
_res = _PyPegen_dummy_name(p, expression_var, _opt_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_239[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_242[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "expression ['as' star_target]"));
}
_res = NULL;
return _res;
}
-// _tmp_240: expressions ['as' star_target]
+// _tmp_243: expressions ['as' star_target]
static void *
-_tmp_240_rule(Parser *p)
+_tmp_243_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_240[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
+ D(fprintf(stderr, "%*c> _tmp_243[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
void *_opt_var;
UNUSED(_opt_var); // Silence compiler warnings
expr_ty expressions_var;
if (
(expressions_var = expressions_rule(p)) // expressions
&&
- (_opt_var = _tmp_247_rule(p), !p->error_indicator) // ['as' star_target]
+ (_opt_var = _tmp_249_rule(p), !p->error_indicator) // ['as' star_target]
)
{
- D(fprintf(stderr, "%*c+ _tmp_240[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
+ D(fprintf(stderr, "%*c+ _tmp_243[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expressions ['as' star_target]"));
_res = _PyPegen_dummy_name(p, expressions_var, _opt_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_240[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_243[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "expressions ['as' star_target]"));
}
_res = NULL;
return _res;
}
-// _tmp_241: except_block+ except_star_block
-static void *
-_tmp_241_rule(Parser *p)
-{
- if (p->level++ == MAXSTACK) {
- p->error_indicator = 1;
- PyErr_NoMemory();
- }
- if (p->error_indicator) {
- p->level--;
- return NULL;
- }
- void * _res = NULL;
- int _mark = p->mark;
- { // except_block+ except_star_block
- if (p->error_indicator) {
- p->level--;
- return NULL;
- }
- D(fprintf(stderr, "%*c> _tmp_241[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "except_block+ except_star_block"));
- asdl_seq * _loop1_248_var;
- excepthandler_ty except_star_block_var;
- if (
- (_loop1_248_var = _loop1_248_rule(p)) // except_block+
- &&
- (except_star_block_var = except_star_block_rule(p)) // except_star_block
- )
- {
- D(fprintf(stderr, "%*c+ _tmp_241[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "except_block+ except_star_block"));
- _res = _PyPegen_dummy_name(p, _loop1_248_var, except_star_block_var);
- goto done;
- }
- p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_241[%d-%d]: %s failed!\n", p->level, ' ',
- p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "except_block+ except_star_block"));
- }
- _res = NULL;
- done:
- p->level--;
- return _res;
-}
-
-// _tmp_242: except_star_block+ except_block
+// _tmp_244: 'as' NAME
static void *
-_tmp_242_rule(Parser *p)
+_tmp_244_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
}
void * _res = NULL;
int _mark = p->mark;
- { // except_star_block+ except_block
+ { // 'as' NAME
if (p->error_indicator) {
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_242[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "except_star_block+ except_block"));
- asdl_seq * _loop1_249_var;
- excepthandler_ty except_block_var;
+ D(fprintf(stderr, "%*c> _tmp_244[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ Token * _keyword;
+ expr_ty name_var;
if (
- (_loop1_249_var = _loop1_249_rule(p)) // except_star_block+
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
- (except_block_var = except_block_rule(p)) // except_block
+ (name_var = _PyPegen_name_token(p)) // NAME
)
{
- D(fprintf(stderr, "%*c+ _tmp_242[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "except_star_block+ except_block"));
- _res = _PyPegen_dummy_name(p, _loop1_249_var, except_block_var);
+ D(fprintf(stderr, "%*c+ _tmp_244[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' NAME"));
+ _res = _PyPegen_dummy_name(p, _keyword, name_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_242[%d-%d]: %s failed!\n", p->level, ' ',
- p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "except_star_block+ except_block"));
+ D(fprintf(stderr, "%*c%s _tmp_244[%d-%d]: %s failed!\n", p->level, ' ',
+ p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' NAME"));
}
_res = NULL;
done:
return _res;
}
-// _tmp_243: assignment_expression | expression !':='
+// _tmp_245: assignment_expression | expression !':='
static void *
-_tmp_243_rule(Parser *p)
+_tmp_245_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_243[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "assignment_expression"));
+ D(fprintf(stderr, "%*c> _tmp_245[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "assignment_expression"));
expr_ty assignment_expression_var;
if (
(assignment_expression_var = assignment_expression_rule(p)) // assignment_expression
)
{
- D(fprintf(stderr, "%*c+ _tmp_243[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "assignment_expression"));
+ D(fprintf(stderr, "%*c+ _tmp_245[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "assignment_expression"));
_res = assignment_expression_var;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_243[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_245[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "assignment_expression"));
}
{ // expression !':='
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_243[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression !':='"));
+ D(fprintf(stderr, "%*c> _tmp_245[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "expression !':='"));
expr_ty expression_var;
if (
(expression_var = expression_rule(p)) // expression
_PyPegen_lookahead_with_int(0, _PyPegen_expect_token, p, 53) // token=':='
)
{
- D(fprintf(stderr, "%*c+ _tmp_243[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression !':='"));
+ D(fprintf(stderr, "%*c+ _tmp_245[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "expression !':='"));
_res = expression_var;
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_243[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_245[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "expression !':='"));
}
_res = NULL;
return _res;
}
-// _tmp_244: 'as' star_target
+// _tmp_246: 'as' star_target
static void *
-_tmp_244_rule(Parser *p)
+_tmp_246_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_244[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+ D(fprintf(stderr, "%*c> _tmp_246[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
Token * _keyword;
expr_ty star_target_var;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(star_target_var = star_target_rule(p)) // star_target
)
{
- D(fprintf(stderr, "%*c+ _tmp_244[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+ D(fprintf(stderr, "%*c+ _tmp_246[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
_res = _PyPegen_dummy_name(p, _keyword, star_target_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_244[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_246[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' star_target"));
}
_res = NULL;
return _res;
}
-// _tmp_245: 'as' star_target
+// _tmp_247: 'as' star_target
static void *
-_tmp_245_rule(Parser *p)
+_tmp_247_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_245[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+ D(fprintf(stderr, "%*c> _tmp_247[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
Token * _keyword;
expr_ty star_target_var;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(star_target_var = star_target_rule(p)) // star_target
)
{
- D(fprintf(stderr, "%*c+ _tmp_245[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+ D(fprintf(stderr, "%*c+ _tmp_247[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
_res = _PyPegen_dummy_name(p, _keyword, star_target_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_245[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_247[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' star_target"));
}
_res = NULL;
return _res;
}
-// _tmp_246: 'as' star_target
+// _tmp_248: 'as' star_target
static void *
-_tmp_246_rule(Parser *p)
+_tmp_248_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_246[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+ D(fprintf(stderr, "%*c> _tmp_248[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
Token * _keyword;
expr_ty star_target_var;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(star_target_var = star_target_rule(p)) // star_target
)
{
- D(fprintf(stderr, "%*c+ _tmp_246[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+ D(fprintf(stderr, "%*c+ _tmp_248[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
_res = _PyPegen_dummy_name(p, _keyword, star_target_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_246[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_248[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' star_target"));
}
_res = NULL;
return _res;
}
-// _tmp_247: 'as' star_target
+// _tmp_249: 'as' star_target
static void *
-_tmp_247_rule(Parser *p)
+_tmp_249_rule(Parser *p)
{
if (p->level++ == MAXSTACK) {
p->error_indicator = 1;
p->level--;
return NULL;
}
- D(fprintf(stderr, "%*c> _tmp_247[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+ D(fprintf(stderr, "%*c> _tmp_249[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
Token * _keyword;
expr_ty star_target_var;
if (
- (_keyword = _PyPegen_expect_token(p, 632)) // token='as'
+ (_keyword = _PyPegen_expect_token(p, 637)) // token='as'
&&
(star_target_var = star_target_rule(p)) // star_target
)
{
- D(fprintf(stderr, "%*c+ _tmp_247[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
+ D(fprintf(stderr, "%*c+ _tmp_249[%d-%d]: %s succeeded!\n", p->level, ' ', _mark, p->mark, "'as' star_target"));
_res = _PyPegen_dummy_name(p, _keyword, star_target_var);
goto done;
}
p->mark = _mark;
- D(fprintf(stderr, "%*c%s _tmp_247[%d-%d]: %s failed!\n", p->level, ' ',
+ D(fprintf(stderr, "%*c%s _tmp_249[%d-%d]: %s failed!\n", p->level, ' ',
p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "'as' star_target"));
}
_res = NULL;
return _res;
}
-// _loop1_248: except_block
-static asdl_seq *
-_loop1_248_rule(Parser *p)
-{
- if (p->level++ == MAXSTACK) {
- p->error_indicator = 1;
- PyErr_NoMemory();
- }
- if (p->error_indicator) {
- p->level--;
- return NULL;
- }
- void *_res = NULL;
- int _mark = p->mark;
- int _start_mark = p->mark;
- void **_children = PyMem_Malloc(sizeof(void *));
- if (!_children) {
- p->error_indicator = 1;
- PyErr_NoMemory();
- p->level--;
- return NULL;
- }
- Py_ssize_t _children_capacity = 1;
- Py_ssize_t _n = 0;
- { // except_block
- if (p->error_indicator) {
- p->level--;
- return NULL;
- }
- D(fprintf(stderr, "%*c> _loop1_248[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "except_block"));
- excepthandler_ty except_block_var;
- while (
- (except_block_var = except_block_rule(p)) // except_block
- )
- {
- _res = except_block_var;
- if (_n == _children_capacity) {
- _children_capacity *= 2;
- void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
- if (!_new_children) {
- p->error_indicator = 1;
- PyErr_NoMemory();
- p->level--;
- return NULL;
- }
- _children = _new_children;
- }
- _children[_n++] = _res;
- _mark = p->mark;
- }
- p->mark = _mark;
- D(fprintf(stderr, "%*c%s _loop1_248[%d-%d]: %s failed!\n", p->level, ' ',
- p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "except_block"));
- }
- if (_n == 0 || p->error_indicator) {
- PyMem_Free(_children);
- p->level--;
- return NULL;
- }
- asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
- if (!_seq) {
- PyMem_Free(_children);
- p->error_indicator = 1;
- PyErr_NoMemory();
- p->level--;
- return NULL;
- }
- for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
- PyMem_Free(_children);
- _PyPegen_insert_memo(p, _start_mark, _loop1_248_type, _seq);
- p->level--;
- return _seq;
-}
-
-// _loop1_249: except_star_block
-static asdl_seq *
-_loop1_249_rule(Parser *p)
-{
- if (p->level++ == MAXSTACK) {
- p->error_indicator = 1;
- PyErr_NoMemory();
- }
- if (p->error_indicator) {
- p->level--;
- return NULL;
- }
- void *_res = NULL;
- int _mark = p->mark;
- int _start_mark = p->mark;
- void **_children = PyMem_Malloc(sizeof(void *));
- if (!_children) {
- p->error_indicator = 1;
- PyErr_NoMemory();
- p->level--;
- return NULL;
- }
- Py_ssize_t _children_capacity = 1;
- Py_ssize_t _n = 0;
- { // except_star_block
- if (p->error_indicator) {
- p->level--;
- return NULL;
- }
- D(fprintf(stderr, "%*c> _loop1_249[%d-%d]: %s\n", p->level, ' ', _mark, p->mark, "except_star_block"));
- excepthandler_ty except_star_block_var;
- while (
- (except_star_block_var = except_star_block_rule(p)) // except_star_block
- )
- {
- _res = except_star_block_var;
- if (_n == _children_capacity) {
- _children_capacity *= 2;
- void **_new_children = PyMem_Realloc(_children, _children_capacity*sizeof(void *));
- if (!_new_children) {
- p->error_indicator = 1;
- PyErr_NoMemory();
- p->level--;
- return NULL;
- }
- _children = _new_children;
- }
- _children[_n++] = _res;
- _mark = p->mark;
- }
- p->mark = _mark;
- D(fprintf(stderr, "%*c%s _loop1_249[%d-%d]: %s failed!\n", p->level, ' ',
- p->error_indicator ? "ERROR!" : "-", _mark, p->mark, "except_star_block"));
- }
- if (_n == 0 || p->error_indicator) {
- PyMem_Free(_children);
- p->level--;
- return NULL;
- }
- asdl_seq *_seq = (asdl_seq*)_Py_asdl_generic_seq_new(_n, p->arena);
- if (!_seq) {
- PyMem_Free(_children);
- p->error_indicator = 1;
- PyErr_NoMemory();
- p->level--;
- return NULL;
- }
- for (int i = 0; i < _n; i++) asdl_seq_SET_UNTYPED(_seq, i, _children[i]);
- PyMem_Free(_children);
- _PyPegen_insert_memo(p, _start_mark, _loop1_249_type, _seq);
- p->level--;
- return _seq;
-}
-
void *
_PyPegen_parse(Parser *p)
{
tok->async_def_nl = 0;
tok->interactive_underflow = IUNDERFLOW_NORMAL;
tok->str = NULL;
+ tok->report_warnings = 1;
return tok;
}
error_ret(tok);
goto error;
}
- if (!tok_reserve_buf(tok, buflen + 1)) {
+ // Make room for the null terminator *and* potentially
+ // an extra newline character that we may need to artificially
+ // add.
+ size_t buffer_size = buflen + 2;
+ if (!tok_reserve_buf(tok, buffer_size)) {
goto error;
}
memcpy(tok->inp, buf, buflen);
return 0;
}
if (tok->inp[-1] != '\n') {
+ assert(tok->inp + 1 < tok->end);
/* Last line does not end in \n, fake one */
*tok->inp++ = '\n';
*tok->inp = '\0';
static int
parser_warn(struct tok_state *tok, PyObject *category, const char *format, ...)
{
+ if (!tok->report_warnings) {
+ return 0;
+ }
+
PyObject *errmsg;
va_list vargs;
#ifdef HAVE_STDARG_PROTOTYPES
} while (c == ' ' || c == '\t' || c == '\014');
/* Set start of current token */
- tok->start = tok->cur - 1;
+ tok->start = tok->cur == NULL ? NULL : tok->cur - 1;
/* Skip comment, unless it's a type comment */
if (c == '#') {
return encoding;
}
}
+ // We don't want to report warnings here because it could cause infinite recursion
+ // if fetching the encoding shows a warning.
+ tok->report_warnings = 0;
while (tok->lineno < 2 && tok->done == E_OK) {
_PyTokenizer_Get(tok, &p_start, &p_end);
}
NEWLINE token after it. */
/* How to proceed when asked for a new token in interactive mode */
enum interactive_underflow_t interactive_underflow;
+ int report_warnings;
};
extern struct tok_state *_PyTokenizer_FromString(const char *, int);
if (ferror(outfile)) {
fprintf(stderr, "error when writing to '%s'\n", outpath);
+ fclose(outfile);
return -1;
}
fclose(outfile);
/*********************************************************
* Embedded interpreter tests that need a custom exe
*
- * Executed via 'EmbeddingTests' in Lib/test/test_capi.py
+ * Executed via Lib/test/test_embed.py
*********************************************************/
// Use to display the usage
}
-static void _testembed_Py_Initialize(void)
+static void _testembed_Py_InitializeFromConfig(void)
{
PyConfig config;
_PyConfig_InitCompatConfig(&config);
init_from_config_clear(&config);
}
+static void _testembed_Py_Initialize(void)
+{
+ Py_SetProgramName(PROGRAM_NAME);
+ Py_Initialize();
+}
+
/*****************************************************
* Test repeated initialisation and subinterpreters
for (int i=1; i <= INIT_LOOPS; i++) {
printf("--- Pass %d ---\n", i);
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
mainstate = PyThreadState_Get();
PyEval_ReleaseThread(mainstate);
fprintf(stderr, "--- Loop #%d ---\n", i);
fflush(stderr);
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
int err = PyRun_SimpleString(code);
Py_Finalize();
if (err) {
return 0;
}
+/****************************************************************************
+ * Test the Py_Initialize(Ex) convenience/compatibility wrappers
+ ***************************************************************************/
+// This is here to help ensure there are no wrapper resource leaks (gh-96853)
+static int test_repeated_simple_init(void)
+{
+ for (int i=1; i <= INIT_LOOPS; i++) {
+ fprintf(stderr, "--- Loop #%d ---\n", i);
+ fflush(stderr);
+
+ _testembed_Py_Initialize();
+ Py_Finalize();
+ printf("Finalized\n"); // Give test_embed some output to check
+ }
+ return 0;
+}
+
/*****************************************************
* Test forcing a particular IO encoding
fflush(stdout);
/* Force the given IO encoding */
Py_SetStandardStreamEncoding(encoding, errors);
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
PyRun_SimpleString(
"import sys;"
"print('stdin: {0.encoding}:{0.errors}'.format(sys.stdin));"
dynamic_xoption = NULL;
_Py_EMBED_PREINIT_CHECK("Initializing interpreter\n");
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
_Py_EMBED_PREINIT_CHECK("Check sys module contents\n");
PyRun_SimpleString("import sys; "
"print('sys.warnoptions:', sys.warnoptions); "
return 1;
}
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
unsigned long thrd = PyThread_start_new_thread(bpo20891_thread, &lock);
if (thrd == PYTHREAD_INVALID_THREAD_ID) {
static int test_initialize_twice(void)
{
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
/* bpo-33932: Calling Py_Initialize() twice should do nothing
* (and not crash!). */
L"print(f'Py_Main() after Py_Initialize: "
L"sys.argv={sys.argv}')"),
L"arg2"};
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
/* bpo-34008: Calling Py_Main() after Py_Initialize() must not crash */
Py_Main(Py_ARRAY_LENGTH(argv), argv);
static int test_init_initialize_config(void)
{
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
dump_config();
Py_Finalize();
return 0;
/* Test initialization from environment variables */
Py_IgnoreEnvironmentFlag = 0;
set_all_env_vars();
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
dump_config();
Py_Finalize();
return 0;
/* Test initialization from environment variables */
Py_IgnoreEnvironmentFlag = 0;
set_all_env_vars_dev_mode();
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
dump_config();
Py_Finalize();
return 0;
Py_IgnoreEnvironmentFlag = 0;
set_all_env_vars_dev_mode();
putenv("PYTHONMALLOC=malloc");
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
dump_config();
Py_Finalize();
return 0;
}
Py_IgnoreEnvironmentFlag = 0;
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
result = 0;
PyObject *r = PyFile_OpenCode("$$test-filename");
Py_IgnoreEnvironmentFlag = 0;
PySys_AddAuditHook(_audit_hook, &sawSet);
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
if (PySys_Audit("_testembed.raise", NULL) == 0) {
printf("No error raised");
{
Py_IgnoreEnvironmentFlag = 0;
PySys_AddAuditHook(_audit_subinterpreter_hook, NULL);
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
Py_NewInterpreter();
Py_NewInterpreter();
config._is_python_build = INT_MAX;
env = getenv("NEGATIVE_ISPYTHONBUILD");
if (env && strcmp(env, "0") != 0) {
- config._is_python_build++;
+ config._is_python_build = INT_MIN;
}
init_from_config_clear(&config);
Py_Finalize();
_Py_IDENTIFIER(test_unicode_id_init);
// Initialize Python once without using the identifier
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
Py_Finalize();
// Now initialize Python multiple times and use the identifier.
// The first _PyUnicode_FromId() call initializes the identifier index.
for (int i=0; i<3; i++) {
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
PyObject *str1, *str2;
static int
test_get_incomplete_frame(void)
{
- _testembed_Py_Initialize();
+ _testembed_Py_InitializeFromConfig();
PyMemAllocatorEx allocator;
wrap_allocator(&allocator);
// Force an allocation with an incomplete (generator) frame:
static struct TestCase TestCases[] = {
// Python initialization
{"test_repeated_init_exec", test_repeated_init_exec},
+ {"test_repeated_simple_init", test_repeated_simple_init},
{"test_forced_io_encoding", test_forced_io_encoding},
{"test_repeated_init_and_subinterpreters", test_repeated_init_and_subinterpreters},
{"test_repeated_init_and_inittab", test_repeated_init_and_inittab},
The globals argument is only used to determine the context;
they are not modified. The locals argument is unused. The fromlist
-should be a list of names to emulate ``from name import ...'', or an
-empty list to emulate ``import name''.
+should be a list of names to emulate ``from name import ...``, or an
+empty list to emulate ``import name``.
When importing a module from a package, note that __import__('A.B', ...)
returns package A when fromlist is empty, but its submodule B when
fromlist is not empty. The level argument is used to determine whether to
static PyObject *
builtin___import___impl(PyObject *module, PyObject *name, PyObject *globals,
PyObject *locals, PyObject *fromlist, int level)
-/*[clinic end generated code: output=4febeda88a0cd245 input=35e9a6460412430f]*/
+/*[clinic end generated code: output=4febeda88a0cd245 input=73f4b960ea5b9dd6]*/
{
return PyImport_ImportModuleLevelObject(name, globals, locals,
fromlist, level);
Sets the named attribute on the given object to the specified value.
-setattr(x, 'y', v) is equivalent to ``x.y = v''
+setattr(x, 'y', v) is equivalent to ``x.y = v``
[clinic start generated code]*/
static PyObject *
builtin_setattr_impl(PyObject *module, PyObject *obj, PyObject *name,
PyObject *value)
-/*[clinic end generated code: output=dc2ce1d1add9acb4 input=bd2b7ca6875a1899]*/
+/*[clinic end generated code: output=dc2ce1d1add9acb4 input=5e26417f2e8598d4]*/
{
if (PyObject_SetAttr(obj, name, value) != 0)
return NULL;
Deletes the named attribute from the given object.
-delattr(x, 'y') is equivalent to ``del x.y''
+delattr(x, 'y') is equivalent to ``del x.y``
[clinic start generated code]*/
static PyObject *
builtin_delattr_impl(PyObject *module, PyObject *obj, PyObject *name)
-/*[clinic end generated code: output=85134bc58dff79fa input=db16685d6b4b9410]*/
+/*[clinic end generated code: output=85134bc58dff79fa input=164865623abe7216]*/
{
if (PyObject_SetAttr(obj, name, (PyObject *)NULL) != 0)
return NULL;
return 0;
}
-static _PyInterpreterFrame *
-pop_frame(PyThreadState *tstate, _PyInterpreterFrame *frame)
-{
- _PyInterpreterFrame *prev_frame = frame->previous;
- _PyEvalFrameClearAndPop(tstate, frame);
- return prev_frame;
-}
-
/* It is only between the PRECALL instruction and the following CALL,
* that this has any meaning.
*/
PyObject *container = SECOND();
next_instr--;
if (_Py_Specialize_BinarySubscr(container, sub, next_instr) < 0) {
+ next_instr++;
goto error;
}
DISPATCH_SAME_OPARG();
PyObject *container = SECOND();
next_instr--;
if (_Py_Specialize_StoreSubscr(container, sub, next_instr) < 0) {
+ next_instr++;
goto error;
}
DISPATCH_SAME_OPARG();
DTRACE_FUNCTION_EXIT();
_Py_LeaveRecursiveCallTstate(tstate);
if (!frame->is_entry) {
- frame = cframe.current_frame = pop_frame(tstate, frame);
+ // GH-99729: We need to unlink the frame *before* clearing it:
+ _PyInterpreterFrame *dying = frame;
+ frame = cframe.current_frame = dying->previous;
+ _PyEvalFrameClearAndPop(tstate, dying);
_PyFrame_StackPush(frame, retval);
goto resume_frame;
}
PyObject *name = GETITEM(names, oparg>>1);
next_instr--;
if (_Py_Specialize_LoadGlobal(GLOBALS(), BUILTINS(), next_instr, name) < 0) {
+ next_instr++;
goto error;
}
DISPATCH_SAME_OPARG();
PyObject *name = GETITEM(names, oparg);
next_instr--;
if (_Py_Specialize_LoadAttr(owner, next_instr, name) < 0) {
+ next_instr++;
goto error;
}
DISPATCH_SAME_OPARG();
DISPATCH();
}
- DISPATCH();
TARGET(STORE_ATTR_ADAPTIVE) {
assert(cframe.use_tracing == 0);
_PyAttrCache *cache = (_PyAttrCache *)next_instr;
PyObject *name = GETITEM(names, oparg);
next_instr--;
if (_Py_Specialize_StoreAttr(owner, next_instr, name) < 0) {
+ next_instr++;
goto error;
}
DISPATCH_SAME_OPARG();
PyObject *name = GETITEM(names, oparg);
next_instr--;
if (_Py_Specialize_LoadMethod(owner, next_instr, name) < 0) {
+ next_instr++;
goto error;
}
DISPATCH_SAME_OPARG();
TARGET(PRECALL_ADAPTIVE) {
_PyPrecallCache *cache = (_PyPrecallCache *)next_instr;
- if (cache->counter == 0) {
+ if (ADAPTIVE_COUNTER_IS_ZERO(cache)) {
next_instr--;
int is_meth = is_method(stack_pointer, oparg);
int nargs = oparg + is_meth;
int err = _Py_Specialize_Precall(callable, next_instr, nargs,
call_shape.kwnames, oparg);
if (err < 0) {
+ next_instr++;
goto error;
}
DISPATCH_SAME_OPARG();
}
else {
STAT_INC(PRECALL, deferred);
- cache->counter--;
+ DECREMENT_ADAPTIVE_COUNTER(cache);
JUMP_TO_INSTRUCTION(PRECALL);
}
}
int err = _Py_Specialize_Call(callable, next_instr, nargs,
call_shape.kwnames);
if (err < 0) {
+ next_instr++;
goto error;
}
DISPATCH_SAME_OPARG();
goto error;
}
PyObject *arg = TOP();
- PyObject *res = cfunc(PyCFunction_GET_SELF(callable), arg);
+ PyObject *res = _PyCFunction_TrampolineCall(cfunc, PyCFunction_GET_SELF(callable), arg);
_Py_LeaveRecursiveCallTstate(tstate);
assert((res != NULL) ^ (_PyErr_Occurred(tstate) != NULL));
PyObject *list = SECOND();
DEOPT_IF(!PyList_Check(list), PRECALL);
STAT_INC(PRECALL, hit);
- // PRECALL + CALL + POP_TOP
- JUMPBY(INLINE_CACHE_ENTRIES_PRECALL + 1 + INLINE_CACHE_ENTRIES_CALL + 1);
- assert(_Py_OPCODE(next_instr[-1]) == POP_TOP);
PyObject *arg = POP();
if (_PyList_AppendTakeRef((PyListObject *)list, arg) < 0) {
goto error;
STACK_SHRINK(2);
Py_DECREF(list);
Py_DECREF(callable);
+ // PRECALL + CALL + POP_TOP
+ JUMPBY(INLINE_CACHE_ENTRIES_PRECALL + 1 + INLINE_CACHE_ENTRIES_CALL + 1);
+ assert(_Py_OPCODE(next_instr[-1]) == POP_TOP);
DISPATCH();
}
if (_Py_EnterRecursiveCallTstate(tstate, " while calling a Python object")) {
goto error;
}
- PyObject *res = cfunc(self, arg);
+ PyObject *res = _PyCFunction_TrampolineCall(cfunc, self, arg);
_Py_LeaveRecursiveCallTstate(tstate);
assert((res != NULL) ^ (_PyErr_Occurred(tstate) != NULL));
Py_DECREF(self);
if (_Py_EnterRecursiveCallTstate(tstate, " while calling a Python object")) {
goto error;
}
- PyObject *res = cfunc(self, NULL);
+ PyObject *res = _PyCFunction_TrampolineCall(cfunc, self, NULL);
_Py_LeaveRecursiveCallTstate(tstate);
assert((res != NULL) ^ (_PyErr_Occurred(tstate) != NULL));
Py_DECREF(self);
#endif
/* Log traceback info. */
- PyFrameObject *f = _PyFrame_GetFrameObject(frame);
- if (f != NULL) {
- PyTraceBack_Here(f);
+ if (!_PyFrame_IsIncomplete(frame)) {
+ PyFrameObject *f = _PyFrame_GetFrameObject(frame);
+ if (f != NULL) {
+ PyTraceBack_Here(f);
+ }
}
if (tstate->c_tracefunc != NULL) {
assert(tstate->cframe->current_frame == frame->previous);
return NULL;
}
- frame = cframe.current_frame = pop_frame(tstate, frame);
+ // GH-99729: We need to unlink the frame *before* clearing it:
+ _PyInterpreterFrame *dying = frame;
+ frame = cframe.current_frame = dying->previous;
+ _PyEvalFrameClearAndPop(tstate, dying);
resume_with_error:
SET_LOCALS_FROM_FRAME();
}
}
/* Always emit an opcode event if we're tracing all opcodes. */
- if (f->f_trace_opcodes) {
+ if (f->f_trace_opcodes && result == 0) {
result = call_trace(func, obj, tstate, frame, PyTrace_OPCODE, Py_None);
}
return result;
_Py_ANNOTATE_RWLOCK_DESTROY(&gil->locked);
}
+#ifdef HAVE_FORK
static void recreate_gil(struct _gil_runtime_state *gil)
{
_Py_ANNOTATE_RWLOCK_DESTROY(&gil->locked);
/* XXX should we destroy the old OS resources here? */
create_gil(gil);
}
+#endif
static void
drop_gil(struct _ceval_runtime_state *ceval, struct _ceval_state *ceval2,
goto _ready;
}
+ int drop_requested = 0;
while (_Py_atomic_load_relaxed(&gil->locked)) {
unsigned long saved_switchnum = gil->switch_number;
{
if (tstate_must_exit(tstate)) {
MUTEX_UNLOCK(gil->mutex);
+ // gh-96387: If the loop requested a drop request in a previous
+ // iteration, reset the request. Otherwise, drop_gil() can
+ // block forever waiting for the thread which exited. Drop
+ // requests made by other threads are also reset: these threads
+ // may have to request again a drop request (iterate one more
+ // time).
+ if (drop_requested) {
+ RESET_GIL_DROP_REQUEST(interp);
+ }
PyThread_exit_thread();
}
assert(is_tstate_valid(tstate));
SET_GIL_DROP_REQUEST(interp);
+ drop_requested = 1;
}
}
"\n"
"The globals argument is only used to determine the context;\n"
"they are not modified. The locals argument is unused. The fromlist\n"
-"should be a list of names to emulate ``from name import ...\'\', or an\n"
-"empty list to emulate ``import name\'\'.\n"
+"should be a list of names to emulate ``from name import ...``, or an\n"
+"empty list to emulate ``import name``.\n"
"When importing a module from a package, note that __import__(\'A.B\', ...)\n"
"returns package A when fromlist is empty, but its submodule B when\n"
"fromlist is not empty. The level argument is used to determine whether to\n"
"\n"
"Sets the named attribute on the given object to the specified value.\n"
"\n"
-"setattr(x, \'y\', v) is equivalent to ``x.y = v\'\'");
+"setattr(x, \'y\', v) is equivalent to ``x.y = v``");
#define BUILTIN_SETATTR_METHODDEF \
{"setattr", _PyCFunction_CAST(builtin_setattr), METH_FASTCALL, builtin_setattr__doc__},
"\n"
"Deletes the named attribute from the given object.\n"
"\n"
-"delattr(x, \'y\') is equivalent to ``del x.y\'\'");
+"delattr(x, \'y\') is equivalent to ``del x.y``");
#define BUILTIN_DELATTR_METHODDEF \
{"delattr", _PyCFunction_CAST(builtin_delattr), METH_FASTCALL, builtin_delattr__doc__},
exit:
return return_value;
}
-/*[clinic end generated code: output=a2c5c53e8aead7c3 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=cc844ea007c1241f input=a9049054013a1b77]*/
return 1;
}
case Compare_kind: {
+ SET_LOC(c, e);
Py_ssize_t i, n = asdl_seq_LEN(e->v.Compare.ops) - 1;
if (n > 0) {
if (!check_compare(c, e)) {
frame = (_PyInterpreterFrame *)f->_f_frame_data;
f->f_frame = frame;
frame->owner = FRAME_OWNED_BY_FRAME_OBJECT;
+ if (_PyFrame_IsIncomplete(frame)) {
+ // This may be a newly-created generator or coroutine frame. Since it's
+ // dead anyways, just pretend that the first RESUME ran:
+ PyCodeObject *code = frame->f_code;
+ frame->prev_instr = _PyCode_CODE(code) + code->_co_firsttraceable;
+ }
+ assert(!_PyFrame_IsIncomplete(frame));
assert(f->f_back == NULL);
_PyInterpreterFrame *prev = frame->previous;
while (prev && _PyFrame_IsIncomplete(prev)) {
* to have cleared the enclosing generator, if any. */
assert(frame->owner != FRAME_OWNED_BY_GENERATOR ||
_PyFrame_GetGenerator(frame)->gi_frame_state == FRAME_CLEARED);
+ // GH-99729: Clearing this frame can expose the stack (via finalizers). It's
+ // crucial that this frame has been unlinked, and is no longer visible:
+ assert(_PyThreadState_GET()->cframe->current_frame != frame);
if (frame->frame_obj) {
PyFrameObject *f = frame->frame_obj;
frame->frame_obj = NULL;
if (_PyUnicode_EqualToASCIIString(name, p->name)) {
if (p->initfunc == NULL) {
/* Cannot re-init internal module ("sys" or "builtins") */
- return PyImport_AddModuleObject(name);
+ mod = PyImport_AddModuleObject(name);
+ return Py_XNewRef(mod);
}
mod = _PyImport_InitFunc_TrampolineCall(*p->initfunc);
if (mod == NULL) {
*/
#if defined(MS_WINDOWS)
#define MAX_MARSHAL_STACK_DEPTH 1000
+#elif defined(__wasi__)
+#define MAX_MARSHAL_STACK_DEPTH 1500
#else
#define MAX_MARSHAL_STACK_DEPTH 2000
#endif
would have been written had the buffer not been too small, and to set
the last byte of the buffer to \0. At least MS _vsnprintf returns a
negative value instead, and fills the entire buffer with non-\0 data.
+ Unlike C99, our wrappers do not support passing a null buffer.
The wrappers ensure that str[size-1] is always \0 upon return.
_PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
PyMem_RawFree(_Py_path_config.home);
+ _Py_path_config.home = NULL;
+
if (has_value) {
_Py_path_config.home = _PyMem_RawWcsdup(home);
}
_PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
PyMem_RawFree(_Py_path_config.program_name);
+ _Py_path_config.program_name = NULL;
+
if (has_value) {
_Py_path_config.program_name = _PyMem_RawWcsdup(program_name);
}
_PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
PyMem_RawFree(_Py_path_config.program_full_path);
+ _Py_path_config.program_full_path = NULL;
+
if (has_value) {
_Py_path_config.program_full_path = _PyMem_RawWcsdup(program_full_path);
}
* interpreter state for various runtime debugging tools, but is *not* an
* officially supported feature */
+/* Suppress deprecation warning for PyBytesObject.ob_shash */
+_Py_COMP_DIAG_PUSH
+_Py_COMP_DIAG_IGNORE_DEPR_DECLS
+
#if defined(MS_WINDOWS)
#pragma section("PyRuntime", read, write)
#endif
-/* Suppress deprecation warning for PyBytesObject.ob_shash */
-_Py_COMP_DIAG_PUSH
-_Py_COMP_DIAG_IGNORE_DEPR_DECLS
_PyRuntimeState _PyRuntime
#if defined(__linux__) && (defined(__GNUC__) || defined(__clang__))
__attribute__ ((section (".PyRuntime")))
config.install_signal_handlers = install_sigs;
status = Py_InitializeFromConfig(&config);
+ PyConfig_Clear(&config);
if (_PyStatus_EXCEPTION(status)) {
Py_ExitStatusException(status);
}
interp = &runtime->_main_interpreter;
assert(interp->id == 0);
assert(interp->next == NULL);
+ assert(interp->_static);
interpreters->main = interp;
}
// Set to _PyInterpreterState_INIT.
memcpy(interp, &initial._main_interpreter,
sizeof(*interp));
+ // We need to adjust any fields that are different from the initial
+ // interpreter (as defined in _PyInterpreterState_INIT):
+ interp->_static = false;
if (id < 0) {
/* overflow or Py_Initialize() not called yet! */
assert(id == 1);
used_newtstate = 0;
tstate = &interp->_initial_thread;
+ assert(tstate->_static);
}
else {
// Every valid interpreter must have at least one thread.
memcpy(tstate,
&initial._main_interpreter._initial_thread,
sizeof(*tstate));
+ // We need to adjust any fields that are different from the initial
+ // thread (as defined in _PyThreadState_INIT):
+ tstate->_static = false;
}
interp->threads.head = tstate;
PyThreadState *t;
for (t = i->threads.head; t != NULL; t = t->next) {
_PyInterpreterFrame *frame = t->cframe->current_frame;
+ while (frame && _PyFrame_IsIncomplete(frame)) {
+ frame = frame->previous;
+ }
if (frame == NULL) {
continue;
}
PyMemberDescrObject *member = (PyMemberDescrObject *)descr;
struct PyMemberDef *dmem = member->d_member;
Py_ssize_t offset = dmem->offset;
+ if (!PyObject_TypeCheck(owner, member->d_common.d_type)) {
+ SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_EXPECTED_ERROR);
+ goto fail;
+ }
if (dmem->flags & PY_AUDIT_READ) {
SPECIALIZATION_FAIL(LOAD_ATTR, SPEC_FAIL_ATTR_AUDITED_SLOT);
goto fail;
PyMemberDescrObject *member = (PyMemberDescrObject *)descr;
struct PyMemberDef *dmem = member->d_member;
Py_ssize_t offset = dmem->offset;
+ if (!PyObject_TypeCheck(owner, member->d_common.d_type)) {
+ SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_EXPECTED_ERROR);
+ goto fail;
+ }
if (dmem->flags & READONLY) {
SPECIALIZATION_FAIL(STORE_ATTR, SPEC_FAIL_ATTR_READ_ONLY);
goto fail;
if (interp->audit_hooks == NULL) {
return NULL;
}
+ /* Avoid having our list of hooks show up in the GC module */
+ PyObject_GC_UnTrack(interp->audit_hooks);
}
if (PyList_Append(interp->audit_hooks, hook) < 0) {
if (typeof navigator == 'object') {
info = navigator.userAgent;
} else if (typeof process == 'object') {
- info = "Node.js ".concat(process.version)
+ info = "Node.js ".concat(process.version);
} else {
- info = "UNKNOWN"
+ info = "UNKNOWN";
}
var len = lengthBytesUTF8(info) + 1;
var res = _malloc(len);
- stringToUTF8(info, res, len);
+ if (res) stringToUTF8(info, res, len);
+#if __wasm64__
+ return BigInt(res);
+#else
return res;
+#endif
});
static PyObject *
done:
if (res > 0) {
- *left_anchor += start_offset;
- *right_anchor += start_offset;
+ // Normalize the AST offsets to byte offsets and adjust them with the
+ // start of the actual line (instead of the source code segment).
+ assert(segment != NULL);
+ assert(*left_anchor >= 0);
+ assert(*right_anchor >= 0);
+ *left_anchor = _PyPegen_byte_offset_to_character_offset(segment, *left_anchor) + start_offset;
+ *right_anchor = _PyPegen_byte_offset_to_character_offset(segment, *right_anchor) + start_offset;
}
Py_XDECREF(segment);
if (arena) {
-This is Python version 3.11.0
+This is Python version 3.11.1
=============================
.. image:: https://github.com/python/cpython/workflows/Tests/badge.svg
additional third-party libraries, depending on your build platform and
configure options. Not all standard library modules are buildable or
useable on all platforms. Refer to the
-`Install dependencies <https://devguide.python.org/setup/#install-dependencies>`_
+`Install dependencies <https://devguide.python.org/getting-started/setup-building.html#build-dependencies>`_
section of the `Developer Guide`_ for current detailed information on
dependencies for various Linux distributions and macOS.
We have a comprehensive overview of the changes in the `What's New in Python
3.11 <https://docs.python.org/3.11/whatsnew/3.11.html>`_ document. For a more
detailed change log, read `Misc/NEWS
-<https://github.com/python/cpython/blob/main/Misc/NEWS.d>`_, but a full
+<https://github.com/python/cpython/tree/main/Misc/NEWS.d>`_, but a full
accounting of changes can only be gleaned from the `commit history
<https://github.com/python/cpython/commits/main>`_.
<https://github.com/python/cpython/issues>`_ and include relevant output from
that command to show the issue.
-See `Running & Writing Tests <https://devguide.python.org/runtests/>`_
+See `Running & Writing Tests <https://devguide.python.org/testing/run-write-tests.html>`_
for more on running tests.
Installing multiple versions
-@rem Used by the buildbot "compile" step.\r
-\r
-@rem Clean up\r
-call "%~dp0clean.bat" %*\r
-\r
-@rem If you need the buildbots to start fresh (such as when upgrading to\r
-@rem a new version of an external library, especially Tcl/Tk):\r
-@rem 1) uncomment the following line:\r
-\r
-@rem call "%~dp0..\..\PCbuild\get_externals.bat" --clean-only\r
-\r
-@rem 2) commit and push\r
-@rem 3) wait for all Windows bots to start a build with that changeset\r
-@rem 4) re-comment, commit and push again\r
-\r
-@rem Do the build\r
-call "%~dp0..\..\PCbuild\build.bat" -e -d -k -v %*\r
+@rem Used by the buildbot "compile" step.
+
+@rem Clean up
+call "%~dp0clean.bat" %*
+
+@rem If you need the buildbots to start fresh (such as when upgrading to
+@rem a new version of an external library, especially Tcl/Tk):
+@rem 1) uncomment the following line:
+
+@rem call "%~dp0..\..\PCbuild\get_externals.bat" --clean-only
+
+@rem 2) commit and push
+@rem 3) wait for all Windows bots to start a build with that changeset
+@rem 4) re-comment, commit and push again
+
+@rem Do the build
+call "%~dp0..\..\PCbuild\build.bat" -e -d -k -v %*
-@rem Used by the buildbot "buildmsi" step.\r
-setlocal\r
-\r
-pushd\r
-\r
-@rem build both snapshot MSIs\r
-call "%~dp0..\msi\build.bat" -x86 -x64\r
-\r
+@rem Used by the buildbot "buildmsi" step.
+setlocal
+
+pushd
+
+@rem build both snapshot MSIs
+call "%~dp0..\msi\build.bat" -x86 -x64
+
popd
\ No newline at end of file
-@echo off\r
-rem Used by the buildbot "clean" step.\r
-\r
-setlocal\r
-set root=%~dp0..\..\r
-set pcbuild=%root%\PCbuild\r
-\r
-echo Deleting build\r
-call "%pcbuild%\build.bat" -t Clean -k %*\r
-call "%pcbuild%\build.bat" -t Clean -k -d %*\r
-\r
-echo Deleting .pyc/.pyo files ...\r
-del /s "%root%\Lib\*.pyc" "%root%\Lib\*.pyo"\r
-\r
-echo Deleting test leftovers ...\r
-rmdir /s /q "%root%\build"\r
-del /s "%pcbuild%\python*.zip"\r
+@echo off
+rem Used by the buildbot "clean" step.
+
+setlocal
+set root=%~dp0..\..
+set pcbuild=%root%\PCbuild
+
+echo Deleting build
+call "%pcbuild%\build.bat" -t Clean -k %*
+call "%pcbuild%\build.bat" -t Clean -k -d %*
+
+echo Deleting .pyc/.pyo files ...
+del /s "%root%\Lib\*.pyc" "%root%\Lib\*.pyo"
+
+echo Deleting test leftovers ...
+rmdir /s /q "%root%\build"
+del /s "%pcbuild%\python*.zip"
-@echo off\r
-rem Used by the buildbot "remotedeploy" step.\r
-setlocal\r
-\r
-set PATH=%PATH%;%SystemRoot%\SysNative\OpenSSH;%SystemRoot%\System32\OpenSSH\r
-set here=%~dp0\r
-set arm32_ssh=\r
-\r
-:CheckOpts\r
-if "%1"=="-arm32" (set arm32_ssh=true) & shift & goto CheckOpts\r
-if NOT "%1"=="" (echo unrecognized option %1) & goto Arm32SshHelp\r
-\r
-if "%arm32_ssh%"=="true" goto :Arm32Ssh\r
-\r
-:Arm32Ssh\r
-if "%SSH_SERVER%"=="" goto :Arm32SshHelp\r
-\r
-ssh %SSH_SERVER% echo Make sure we can find SSH and SSH_SERVER variable is valid\r
-if %ERRORLEVEL% NEQ 0 (echo SSH does not work) & exit /b %ERRORLEVEL%\r
-\r
-if "%PYTHON_SOURCE%"=="" (set PYTHON_SOURCE=%here%..\..\)\r
-if "%REMOTE_PYTHON_DIR%"=="" (set REMOTE_PYTHON_DIR=C:\python\)\r
-if NOT "%REMOTE_PYTHON_DIR:~-1,1%"=="\" (set REMOTE_PYTHON_DIR=%REMOTE_PYTHON_DIR%\)\r
-echo PYTHON_SOURCE = %PYTHON_SOURCE%\r
-echo REMOTE_PYTHON_DIR = %REMOTE_PYTHON_DIR%\r
-\r
-REM stop Python processes and remove existing files if found\r
-ssh %SSH_SERVER% "kill python.exe"\r
-ssh %SSH_SERVER% "kill python_d.exe"\r
-ssh %SSH_SERVER% "if EXIST %REMOTE_PYTHON_DIR% (rd %REMOTE_PYTHON_DIR% /s/q)"\r
-\r
-REM Create Python directories\r
-ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%PCBuild\arm32"\r
-ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%temp"\r
-ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%Modules"\r
-ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%PC"\r
-\r
-REM Copy Python files\r
-for /f "USEBACKQ" %%i in (`dir PCbuild\*.bat /b`) do @scp PCBuild\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild"\r
-for /f "USEBACKQ" %%i in (`dir PCbuild\*.py /b`) do @scp PCBuild\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild"\r
-for /f "USEBACKQ" %%i in (`dir PCbuild\arm32\*.exe /b`) do @scp PCBuild\arm32\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild\arm32"\r
-for /f "USEBACKQ" %%i in (`dir PCbuild\arm32\*.pyd /b`) do @scp PCBuild\arm32\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild\arm32"\r
-for /f "USEBACKQ" %%i in (`dir PCbuild\arm32\*.dll /b`) do @scp PCBuild\arm32\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild\arm32"\r
-scp -r "%PYTHON_SOURCE%Include" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Include"\r
-scp -r "%PYTHON_SOURCE%Lib" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Lib"\r
-scp -r "%PYTHON_SOURCE%Parser" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Parser"\r
-scp -r "%PYTHON_SOURCE%Tools" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Tools"\r
-scp "%PYTHON_SOURCE%Modules\Setup" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Modules"\r
-scp "%PYTHON_SOURCE%PC\pyconfig.h" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PC"\r
-\r
-exit /b %ERRORLEVEL%\r
-\r
-:Arm32SshHelp\r
-echo SSH_SERVER environment variable must be set to administrator@[ip address]\r
-echo where [ip address] is the address of a Windows IoT Core ARM32 device.\r
-echo.\r
-echo The test worker should have the SSH agent running.\r
-echo Also a key must be created with ssh-keygen and added to both the buildbot worker machine\r
-echo and the ARM32 worker device: see https://docs.microsoft.com/en-us/windows/iot-core/connect-your-device/ssh\r
-exit /b 127\r
+@echo off
+rem Used by the buildbot "remotedeploy" step.
+setlocal
+
+set PATH=%PATH%;%SystemRoot%\SysNative\OpenSSH;%SystemRoot%\System32\OpenSSH
+set here=%~dp0
+set arm32_ssh=
+
+:CheckOpts
+if "%1"=="-arm32" (set arm32_ssh=true) & shift & goto CheckOpts
+if NOT "%1"=="" (echo unrecognized option %1) & goto Arm32SshHelp
+
+if "%arm32_ssh%"=="true" goto :Arm32Ssh
+
+:Arm32Ssh
+if "%SSH_SERVER%"=="" goto :Arm32SshHelp
+
+ssh %SSH_SERVER% echo Make sure we can find SSH and SSH_SERVER variable is valid
+if %ERRORLEVEL% NEQ 0 (echo SSH does not work) & exit /b %ERRORLEVEL%
+
+if "%PYTHON_SOURCE%"=="" (set PYTHON_SOURCE=%here%..\..\)
+if "%REMOTE_PYTHON_DIR%"=="" (set REMOTE_PYTHON_DIR=C:\python\)
+if NOT "%REMOTE_PYTHON_DIR:~-1,1%"=="\" (set REMOTE_PYTHON_DIR=%REMOTE_PYTHON_DIR%\)
+echo PYTHON_SOURCE = %PYTHON_SOURCE%
+echo REMOTE_PYTHON_DIR = %REMOTE_PYTHON_DIR%
+
+REM stop Python processes and remove existing files if found
+ssh %SSH_SERVER% "kill python.exe"
+ssh %SSH_SERVER% "kill python_d.exe"
+ssh %SSH_SERVER% "if EXIST %REMOTE_PYTHON_DIR% (rd %REMOTE_PYTHON_DIR% /s/q)"
+
+REM Create Python directories
+ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%PCBuild\arm32"
+ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%temp"
+ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%Modules"
+ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%PC"
+
+REM Copy Python files
+for /f "USEBACKQ" %%i in (`dir PCbuild\*.bat /b`) do @scp PCBuild\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild"
+for /f "USEBACKQ" %%i in (`dir PCbuild\*.py /b`) do @scp PCBuild\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild"
+for /f "USEBACKQ" %%i in (`dir PCbuild\arm32\*.exe /b`) do @scp PCBuild\arm32\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild\arm32"
+for /f "USEBACKQ" %%i in (`dir PCbuild\arm32\*.pyd /b`) do @scp PCBuild\arm32\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild\arm32"
+for /f "USEBACKQ" %%i in (`dir PCbuild\arm32\*.dll /b`) do @scp PCBuild\arm32\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild\arm32"
+scp -r "%PYTHON_SOURCE%Include" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Include"
+scp -r "%PYTHON_SOURCE%Lib" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Lib"
+scp -r "%PYTHON_SOURCE%Parser" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Parser"
+scp -r "%PYTHON_SOURCE%Tools" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Tools"
+scp "%PYTHON_SOURCE%Modules\Setup" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Modules"
+scp "%PYTHON_SOURCE%PC\pyconfig.h" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PC"
+
+exit /b %ERRORLEVEL%
+
+:Arm32SshHelp
+echo SSH_SERVER environment variable must be set to administrator@[ip address]
+echo where [ip address] is the address of a Windows IoT Core ARM32 device.
+echo.
+echo The test worker should have the SSH agent running.
+echo Also a key must be created with ssh-keygen and added to both the buildbot worker machine
+echo and the ARM32 worker device: see https://docs.microsoft.com/en-us/windows/iot-core/connect-your-device/ssh
+exit /b 127
-@echo off\r
-rem Used by the buildbot "remotedeploy" step.\r
-setlocal\r
-\r
-set PATH=%PATH%;%SystemRoot%\SysNative\OpenSSH;%SystemRoot%\System32\OpenSSH\r
-set here=%~dp0\r
-set arm32_ssh=\r
-set suffix=_d\r
-if "%REMOTE_PYTHON_DIR%"=="" (set REMOTE_PYTHON_DIR=C:\python\)\r
-if NOT "%REMOTE_PYTHON_DIR:~-1,1%"=="\" (set REMOTE_PYTHON_DIR=%REMOTE_PYTHON_DIR%\)\r
-\r
-:CheckOpts\r
-if "%1"=="-arm32" (set arm32_ssh=true) & (set prefix=%REMOTE_PYTHON_DIR%pcbuild\arm32) & shift & goto CheckOpts\r
-if "%1"=="-d" (set suffix=_d) & shift & goto CheckOpts\r
-if "%1"=="+d" (set suffix=) & shift & goto CheckOpts\r
-if NOT "%1"=="" (echo unrecognized option %1) & goto Arm32SshHelp\r
-\r
-if "%arm32_ssh%"=="true" goto :Arm32Ssh\r
-\r
-:Arm32Ssh\r
-if "%SSH_SERVER%"=="" goto :Arm32SshHelp\r
-\r
-set PYTHON_EXE=%prefix%\python%suffix%.exe\r
-echo on\r
-ssh %SSH_SERVER% %PYTHON_EXE% -m test.pythoninfo\r
-exit /b %ERRORLEVEL%\r
-\r
-:Arm32SshHelp\r
-echo SSH_SERVER environment variable must be set to administrator@[ip address]\r
-echo where [ip address] is the address of a Windows IoT Core ARM32 device.\r
-echo.\r
-echo The test worker should have the SSH agent running.\r
-echo Also a key must be created with ssh-keygen and added to both the buildbot worker machine\r
-echo and the ARM32 worker device: see https://docs.microsoft.com/en-us/windows/iot-core/connect-your-device/ssh\r
-exit /b 127\r
+@echo off
+rem Used by the buildbot "remotedeploy" step.
+setlocal
+
+set PATH=%PATH%;%SystemRoot%\SysNative\OpenSSH;%SystemRoot%\System32\OpenSSH
+set here=%~dp0
+set arm32_ssh=
+set suffix=_d
+if "%REMOTE_PYTHON_DIR%"=="" (set REMOTE_PYTHON_DIR=C:\python\)
+if NOT "%REMOTE_PYTHON_DIR:~-1,1%"=="\" (set REMOTE_PYTHON_DIR=%REMOTE_PYTHON_DIR%\)
+
+:CheckOpts
+if "%1"=="-arm32" (set arm32_ssh=true) & (set prefix=%REMOTE_PYTHON_DIR%pcbuild\arm32) & shift & goto CheckOpts
+if "%1"=="-d" (set suffix=_d) & shift & goto CheckOpts
+if "%1"=="+d" (set suffix=) & shift & goto CheckOpts
+if NOT "%1"=="" (echo unrecognized option %1) & goto Arm32SshHelp
+
+if "%arm32_ssh%"=="true" goto :Arm32Ssh
+
+:Arm32Ssh
+if "%SSH_SERVER%"=="" goto :Arm32SshHelp
+
+set PYTHON_EXE=%prefix%\python%suffix%.exe
+echo on
+ssh %SSH_SERVER% %PYTHON_EXE% -m test.pythoninfo
+exit /b %ERRORLEVEL%
+
+:Arm32SshHelp
+echo SSH_SERVER environment variable must be set to administrator@[ip address]
+echo where [ip address] is the address of a Windows IoT Core ARM32 device.
+echo.
+echo The test worker should have the SSH agent running.
+echo Also a key must be created with ssh-keygen and added to both the buildbot worker machine
+echo and the ARM32 worker device: see https://docs.microsoft.com/en-us/windows/iot-core/connect-your-device/ssh
+exit /b 127
-@echo off\r
-rem Used by the buildbot "test" step.\r
-setlocal\r
-\r
-set PATH=%PATH%;%SystemRoot%\SysNative\OpenSSH;%SystemRoot%\System32\OpenSSH\r
-set here=%~dp0\r
-set rt_opts=-q -d\r
-set regrtest_args=-j1\r
-set arm32_ssh=\r
-\r
-:CheckOpts\r
-if "%1"=="-x64" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts\r
-if "%1"=="-arm64" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts\r
-if "%1"=="-arm32" (set rt_opts=%rt_opts% %1) & (set arm32_ssh=true) & shift & goto CheckOpts\r
-if "%1"=="-d" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts\r
-if "%1"=="-O" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts\r
-if "%1"=="-q" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts\r
-if "%1"=="+d" (set rt_opts=%rt_opts:-d=%) & shift & goto CheckOpts\r
-if "%1"=="+q" (set rt_opts=%rt_opts:-q=%) & shift & goto CheckOpts\r
-if NOT "%1"=="" (set regrtest_args=%regrtest_args% %1) & shift & goto CheckOpts\r
-\r
-if "%PROCESSOR_ARCHITECTURE%"=="ARM" if "%arm32_ssh%"=="true" goto NativeExecution\r
-if "%arm32_ssh%"=="true" goto :Arm32Ssh\r
-\r
-:NativeExecution\r
-call "%here%..\..\PCbuild\rt.bat" %rt_opts% -uall -rwW --slowest --timeout=1200 --fail-env-changed %regrtest_args%\r
-exit /b %ERRORLEVEL%\r
-\r
-:Arm32Ssh\r
-set dashU=-unetwork -udecimal -usubprocess -uurlfetch -utzdata\r
-if "%SSH_SERVER%"=="" goto :Arm32SshHelp\r
-if "%PYTHON_SOURCE%"=="" (set PYTHON_SOURCE=%here%..\..\)\r
-if "%REMOTE_PYTHON_DIR%"=="" (set REMOTE_PYTHON_DIR=C:\python\)\r
-if NOT "%REMOTE_PYTHON_DIR:~-1,1%"=="\" (set REMOTE_PYTHON_DIR=%REMOTE_PYTHON_DIR%\)\r
-\r
-set TEMP_ARGS=--temp %REMOTE_PYTHON_DIR%temp\r
-\r
-set rt_args=%rt_opts% %dashU% -rwW --slowest --timeout=1200 --fail-env-changed %regrtest_args% %TEMP_ARGS%\r
-ssh %SSH_SERVER% "set TEMP=%REMOTE_PYTHON_DIR%temp& cd %REMOTE_PYTHON_DIR% & %REMOTE_PYTHON_DIR%PCbuild\rt.bat" %rt_args%\r
-set ERR=%ERRORLEVEL%\r
-scp %SSH_SERVER%:"%REMOTE_PYTHON_DIR%test-results.xml" "%PYTHON_SOURCE%\test-results.xml"\r
-exit /b %ERR%\r
-\r
-:Arm32SshHelp\r
-echo SSH_SERVER environment variable must be set to administrator@[ip address]\r
-echo where [ip address] is the address of a Windows IoT Core ARM32 device.\r
-echo.\r
-echo The test worker should have the SSH agent running.\r
-echo Also a key must be created with ssh-keygen and added to both the buildbot worker machine\r
-echo and the ARM32 worker device: see https://docs.microsoft.com/en-us/windows/iot-core/connect-your-device/ssh\r
-exit /b 127\r
+@echo off
+rem Used by the buildbot "test" step.
+setlocal
+
+set PATH=%PATH%;%SystemRoot%\SysNative\OpenSSH;%SystemRoot%\System32\OpenSSH
+set here=%~dp0
+set rt_opts=-q -d
+set regrtest_args=-j1
+set arm32_ssh=
+
+:CheckOpts
+if "%1"=="-x64" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts
+if "%1"=="-arm64" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts
+if "%1"=="-arm32" (set rt_opts=%rt_opts% %1) & (set arm32_ssh=true) & shift & goto CheckOpts
+if "%1"=="-d" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts
+if "%1"=="-O" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts
+if "%1"=="-q" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts
+if "%1"=="+d" (set rt_opts=%rt_opts:-d=%) & shift & goto CheckOpts
+if "%1"=="+q" (set rt_opts=%rt_opts:-q=%) & shift & goto CheckOpts
+if NOT "%1"=="" (set regrtest_args=%regrtest_args% %1) & shift & goto CheckOpts
+
+if "%PROCESSOR_ARCHITECTURE%"=="ARM" if "%arm32_ssh%"=="true" goto NativeExecution
+if "%arm32_ssh%"=="true" goto :Arm32Ssh
+
+:NativeExecution
+call "%here%..\..\PCbuild\rt.bat" %rt_opts% -uall -rwW --slowest --timeout=1200 --fail-env-changed %regrtest_args%
+exit /b %ERRORLEVEL%
+
+:Arm32Ssh
+set dashU=-unetwork -udecimal -usubprocess -uurlfetch -utzdata
+if "%SSH_SERVER%"=="" goto :Arm32SshHelp
+if "%PYTHON_SOURCE%"=="" (set PYTHON_SOURCE=%here%..\..\)
+if "%REMOTE_PYTHON_DIR%"=="" (set REMOTE_PYTHON_DIR=C:\python\)
+if NOT "%REMOTE_PYTHON_DIR:~-1,1%"=="\" (set REMOTE_PYTHON_DIR=%REMOTE_PYTHON_DIR%\)
+
+set TEMP_ARGS=--temp %REMOTE_PYTHON_DIR%temp
+
+set rt_args=%rt_opts% %dashU% -rwW --slowest --timeout=1200 --fail-env-changed %regrtest_args% %TEMP_ARGS%
+ssh %SSH_SERVER% "set TEMP=%REMOTE_PYTHON_DIR%temp& cd %REMOTE_PYTHON_DIR% & %REMOTE_PYTHON_DIR%PCbuild\rt.bat" %rt_args%
+set ERR=%ERRORLEVEL%
+scp %SSH_SERVER%:"%REMOTE_PYTHON_DIR%test-results.xml" "%PYTHON_SOURCE%\test-results.xml"
+exit /b %ERR%
+
+:Arm32SshHelp
+echo SSH_SERVER environment variable must be set to administrator@[ip address]
+echo where [ip address] is the address of a Windows IoT Core ARM32 device.
+echo.
+echo The test worker should have the SSH agent running.
+echo Also a key must be created with ssh-keygen and added to both the buildbot worker machine
+echo and the ARM32 worker device: see https://docs.microsoft.com/en-us/windows/iot-core/connect-your-device/ssh
+exit /b 127
self.converter = '_PyUnicode_WideCharString_Opt_Converter'
else:
fail("Py_UNICODE_converter: illegal 'accept' argument " + repr(accept))
+ self.c_default = "NULL"
def cleanup(self):
if not self.length:
if ttype == tokenize.STRING and is_literal_string(tstring):
self.__addentry(safe_eval(tstring), lineno, isdocstring=1)
self.__freshmodule = 0
- elif ttype not in (tokenize.COMMENT, tokenize.NL):
- self.__freshmodule = 0
- return
+ return
+ if ttype in (tokenize.COMMENT, tokenize.NL, tokenize.ENCODING):
+ return
+ self.__freshmodule = 0
# class or func/method docstring?
if ttype == tokenize.NAME and tstring in ('class', 'def'):
self.__state = self.__suiteseen
-@echo off\r
-setlocal\r
-set D=%~dp0\r
-set PCBUILD=%D%..\..\PCbuild\\r
-\r
-set BUILDX86=\r
-set BUILDX64=\r
-set BUILDARM64=\r
-set BUILDDOC=\r
-set BUILDTEST=\r
-set BUILDPACK=\r
-set REBUILD=\r
-\r
-:CheckOpts\r
-if "%~1" EQU "-h" goto Help\r
-if /I "%~1" EQU "-x86" (set BUILDX86=1) && shift && goto CheckOpts\r
-if /I "%~1" EQU "-Win32" (set BUILDX86=1) && shift && goto CheckOpts\r
-if /I "%~1" EQU "-x64" (set BUILDX64=1) && shift && goto CheckOpts\r
-if /I "%~1" EQU "-arm64" (set BUILDARM64=1) && shift && goto CheckOpts\r
-if "%~1" EQU "--doc" (set BUILDDOC=1) && shift && goto CheckOpts\r
-if "%~1" EQU "--no-test-marker" (set BUILDTEST=) && shift && goto CheckOpts\r
-if "%~1" EQU "--test-marker" (set BUILDTEST=--test-marker) && shift && goto CheckOpts\r
-if "%~1" EQU "--pack" (set BUILDPACK=1) && shift && goto CheckOpts\r
-if "%~1" EQU "-r" (set REBUILD=-r) && shift && goto CheckOpts\r
-\r
-if not defined BUILDX86 if not defined BUILDX64 if not defined BUILDARM64 (set BUILDX86=1) && (set BUILDX64=1)\r
-\r
-call "%D%get_externals.bat"\r
-call "%PCBUILD%find_msbuild.bat" %MSBUILD%\r
-if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)\r
-\r
-if defined BUILDX86 (\r
- call "%PCBUILD%build.bat" -p Win32 -d -e %REBUILD% %BUILDTEST%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
- call "%PCBUILD%build.bat" -p Win32 -e %REBUILD% %BUILDTEST%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-if defined BUILDX64 (\r
- call "%PCBUILD%build.bat" -p x64 -d -e %REBUILD% %BUILDTEST%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
- call "%PCBUILD%build.bat" -p x64 -e %REBUILD% %BUILDTEST%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-if defined BUILDARM64 (\r
- call "%PCBUILD%build.bat" -p ARM64 -d -e %REBUILD% %BUILDTEST%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
- call "%PCBUILD%build.bat" -p ARM64 -e %REBUILD% %BUILDTEST%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-if defined BUILDDOC (\r
- call "%PCBUILD%..\Doc\make.bat" html\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-rem Build the launcher MSI separately\r
-%MSBUILD% "%D%launcher\launcher.wixproj" /p:Platform=x86\r
-if errorlevel 1 exit /B %ERRORLEVEL%\r
-\r
-set BUILD_CMD="%D%bundle\snapshot.wixproj"\r
-if defined BUILDTEST (\r
- set BUILD_CMD=%BUILD_CMD% /p:UseTestMarker=true\r
-)\r
-if defined BUILDPACK (\r
- set BUILD_CMD=%BUILD_CMD% /p:Pack=true\r
-)\r
-if defined REBUILD (\r
- set BUILD_CMD=%BUILD_CMD% /t:Rebuild\r
-)\r
-\r
-if defined BUILDX86 (\r
- %MSBUILD% /p:Platform=x86 %BUILD_CMD%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-if defined BUILDX64 (\r
- %MSBUILD% /p:Platform=x64 %BUILD_CMD%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-if defined BUILDARM64 (\r
- %MSBUILD% /p:Platform=ARM64 %BUILD_CMD%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-exit /B 0\r
-\r
-:Help\r
-echo build.bat [-x86] [-x64] [-arm64] [--doc] [-h] [--test-marker] [--pack] [-r]\r
-echo.\r
-echo -x86 Build x86 installers\r
-echo -x64 Build x64 installers\r
-echo -ARM64 Build ARM64 installers\r
-echo --doc Build documentation\r
-echo --test-marker Build with test markers\r
-echo --no-test-marker Build without test markers (default)\r
-echo --pack Embed core MSIs into installer\r
-echo -r Rebuild rather than incremental build\r
+@echo off
+setlocal
+set D=%~dp0
+set PCBUILD=%D%..\..\PCbuild\
+
+set BUILDX86=
+set BUILDX64=
+set BUILDARM64=
+set BUILDDOC=
+set BUILDTEST=
+set BUILDPACK=
+set REBUILD=
+
+:CheckOpts
+if "%~1" EQU "-h" goto Help
+if /I "%~1" EQU "-x86" (set BUILDX86=1) && shift && goto CheckOpts
+if /I "%~1" EQU "-Win32" (set BUILDX86=1) && shift && goto CheckOpts
+if /I "%~1" EQU "-x64" (set BUILDX64=1) && shift && goto CheckOpts
+if /I "%~1" EQU "-arm64" (set BUILDARM64=1) && shift && goto CheckOpts
+if "%~1" EQU "--doc" (set BUILDDOC=1) && shift && goto CheckOpts
+if "%~1" EQU "--no-test-marker" (set BUILDTEST=) && shift && goto CheckOpts
+if "%~1" EQU "--test-marker" (set BUILDTEST=--test-marker) && shift && goto CheckOpts
+if "%~1" EQU "--pack" (set BUILDPACK=1) && shift && goto CheckOpts
+if "%~1" EQU "-r" (set REBUILD=-r) && shift && goto CheckOpts
+
+if not defined BUILDX86 if not defined BUILDX64 if not defined BUILDARM64 (set BUILDX86=1) && (set BUILDX64=1)
+
+call "%D%get_externals.bat"
+call "%PCBUILD%find_msbuild.bat" %MSBUILD%
+if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)
+
+if defined BUILDX86 (
+ call "%PCBUILD%build.bat" -p Win32 -d -e %REBUILD% %BUILDTEST%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+ call "%PCBUILD%build.bat" -p Win32 -e %REBUILD% %BUILDTEST%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+if defined BUILDX64 (
+ call "%PCBUILD%build.bat" -p x64 -d -e %REBUILD% %BUILDTEST%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+ call "%PCBUILD%build.bat" -p x64 -e %REBUILD% %BUILDTEST%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+if defined BUILDARM64 (
+ call "%PCBUILD%build.bat" -p ARM64 -d -e %REBUILD% %BUILDTEST%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+ call "%PCBUILD%build.bat" -p ARM64 -e %REBUILD% %BUILDTEST%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+if defined BUILDDOC (
+ call "%PCBUILD%..\Doc\make.bat" html
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+rem Build the launcher MSI separately
+%MSBUILD% "%D%launcher\launcher.wixproj" /p:Platform=x86
+if errorlevel 1 exit /B %ERRORLEVEL%
+
+set BUILD_CMD="%D%bundle\snapshot.wixproj"
+if defined BUILDTEST (
+ set BUILD_CMD=%BUILD_CMD% /p:UseTestMarker=true
+)
+if defined BUILDPACK (
+ set BUILD_CMD=%BUILD_CMD% /p:Pack=true
+)
+if defined REBUILD (
+ set BUILD_CMD=%BUILD_CMD% /t:Rebuild
+)
+
+if defined BUILDX86 (
+ %MSBUILD% /p:Platform=x86 %BUILD_CMD%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+if defined BUILDX64 (
+ %MSBUILD% /p:Platform=x64 %BUILD_CMD%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+if defined BUILDARM64 (
+ %MSBUILD% /p:Platform=ARM64 %BUILD_CMD%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+exit /B 0
+
+:Help
+echo build.bat [-x86] [-x64] [-arm64] [--doc] [-h] [--test-marker] [--pack] [-r]
+echo.
+echo -x86 Build x86 installers
+echo -x64 Build x64 installers
+echo -ARM64 Build ARM64 installers
+echo --doc Build documentation
+echo --test-marker Build with test markers
+echo --no-test-marker Build without test markers (default)
+echo --pack Embed core MSIs into installer
+echo -r Rebuild rather than incremental build
-@setlocal\r
-@echo off\r
-\r
-rem This script is intended for building official releases of Python.\r
-rem To use it to build alternative releases, you should clone this file\r
-rem and modify the following three URIs.\r
-\r
-rem These two will ensure that your release can be installed\r
-rem alongside an official Python release, by modifying the GUIDs used\r
-rem for all components.\r
-rem\r
-rem The following substitutions will be applied to the release URI:\r
-rem Variable Description Example\r
-rem {arch} architecture amd64, win32\r
-rem Do not change the scheme to https. Otherwise, releases built with this\r
-rem script will not be upgradable to/from official releases of Python.\r
-set RELEASE_URI=http://www.python.org/{arch}\r
-\r
-rem This is the URL that will be used to download installation files.\r
-rem The files available from the default URL *will* conflict with your\r
-rem installer. Trust me, you don't want them, even if it seems like a\r
-rem good idea.\r
-rem\r
-rem The following substitutions will be applied to the download URL:\r
-rem Variable Description Example\r
-rem {version} version number 3.5.0\r
-rem {arch} architecture amd64, win32\r
-rem {releasename} release name a1, b2, rc3 (or blank for final)\r
-rem {msi} MSI filename core.msi\r
-set DOWNLOAD_URL=https://www.python.org/ftp/python/{version}/{arch}{releasename}/{msi}\r
-\r
-set D=%~dp0\r
-set PCBUILD=%D%..\..\PCbuild\\r
-if NOT DEFINED Py_OutDir set Py_OutDir=%PCBUILD%\r
-set EXTERNALS=%D%..\..\externals\windows-installer\\r
-\r
-set BUILDX86=\r
-set BUILDX64=\r
-set BUILDARM64=\r
-set TARGET=Rebuild\r
-set TESTTARGETDIR=\r
-set PGO=-m test -q --pgo\r
-set BUILDMSI=1\r
-set BUILDNUGET=1\r
-set BUILDZIP=1\r
-\r
-\r
-:CheckOpts\r
-if "%1" EQU "-h" goto Help\r
-if "%1" EQU "-c" (set CERTNAME=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "--certificate" (set CERTNAME=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "-o" (set OUTDIR=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "--out" (set OUTDIR=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "-D" (set SKIPDOC=1) && shift && goto CheckOpts\r
-if "%1" EQU "--skip-doc" (set SKIPDOC=1) && shift && goto CheckOpts\r
-if "%1" EQU "-B" (set SKIPBUILD=1) && shift && goto CheckOpts\r
-if "%1" EQU "--skip-build" (set SKIPBUILD=1) && shift && goto CheckOpts\r
-if "%1" EQU "--download" (set DOWNLOAD_URL=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "--test" (set TESTTARGETDIR=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "-b" (set TARGET=Build) && shift && goto CheckOpts\r
-if "%1" EQU "--build" (set TARGET=Build) && shift && goto CheckOpts\r
-if /I "%1" EQU "-x86" (set BUILDX86=1) && shift && goto CheckOpts\r
-if /I "%1" EQU "-Win32" (set BUILDX86=1) && shift && goto CheckOpts\r
-if /I "%1" EQU "-x64" (set BUILDX64=1) && shift && goto CheckOpts\r
-if /I "%1" EQU "-arm64" (set BUILDARM64=1) && shift && goto CheckOpts\r
-if "%1" EQU "--pgo" (set PGO=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "--skip-pgo" (set PGO=) && shift && goto CheckOpts\r
-if "%1" EQU "--skip-nuget" (set BUILDNUGET=) && shift && goto CheckOpts\r
-if "%1" EQU "--skip-zip" (set BUILDZIP=) && shift && goto CheckOpts\r
-if "%1" EQU "--skip-msi" (set BUILDMSI=) && shift && goto CheckOpts\r
-\r
-if "%1" NEQ "" echo Invalid option: "%1" && exit /B 1\r
-\r
-if not defined BUILDX86 if not defined BUILDX64 if not defined BUILDARM64 (set BUILDX86=1) && (set BUILDX64=1)\r
-\r
-if not exist "%GIT%" where git > "%TEMP%\git.loc" 2> nul && set /P GIT= < "%TEMP%\git.loc" & del "%TEMP%\git.loc"\r
-if not exist "%GIT%" echo Cannot find Git on PATH && exit /B 1\r
-\r
-call "%D%get_externals.bat"\r
-call "%PCBUILD%find_msbuild.bat" %MSBUILD%\r
-if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)\r
-\r
-:builddoc\r
-if "%SKIPBUILD%" EQU "1" goto skipdoc\r
-if "%SKIPDOC%" EQU "1" goto skipdoc\r
-\r
-call "%D%..\..\doc\make.bat" html\r
-if errorlevel 1 exit /B %ERRORLEVEL%\r
-:skipdoc\r
-\r
-if defined BUILDX86 (\r
- call :build x86\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-if defined BUILDX64 (\r
- call :build x64 "%PGO%"\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-if defined BUILDARM64 (\r
- call :build ARM64\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-if defined TESTTARGETDIR (\r
- call "%D%testrelease.bat" -t "%TESTTARGETDIR%"\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-exit /B 0\r
-\r
-:build\r
-@setlocal\r
-@echo off\r
-\r
-if "%1" EQU "x86" (\r
- set PGO=\r
- set BUILD=%Py_OutDir%win32\\r
- set BUILD_PLAT=Win32\r
- set OUTDIR_PLAT=win32\r
- set OBJDIR_PLAT=x86\r
-) else if "%1" EQU "x64" (\r
- set BUILD=%Py_OutDir%amd64\\r
- set PGO=%~2\r
- set BUILD_PLAT=x64\r
- set OUTDIR_PLAT=amd64\r
- set OBJDIR_PLAT=x64\r
-) else if "%1" EQU "ARM64" (\r
- set BUILD=%Py_OutDir%amd64\\r
- set PGO=%~2\r
- set BUILD_PLAT=ARM64\r
- set OUTDIR_PLAT=arm64\r
- set OBJDIR_PLAT=arm64\r
-) else (\r
- echo Unknown platform %1\r
- exit /B 1\r
-)\r
-\r
-if exist "%BUILD%en-us" (\r
- echo Deleting %BUILD%en-us\r
- rmdir /q/s "%BUILD%en-us"\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-if exist "%D%obj\Debug_%OBJDIR_PLAT%" (\r
- echo Deleting "%D%obj\Debug_%OBJDIR_PLAT%"\r
- rmdir /q/s "%D%obj\Debug_%OBJDIR_PLAT%"\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-if exist "%D%obj\Release_%OBJDIR_PLAT%" (\r
- echo Deleting "%D%obj\Release_%OBJDIR_PLAT%"\r
- rmdir /q/s "%D%obj\Release_%OBJDIR_PLAT%"\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-if not "%CERTNAME%" EQU "" (\r
- set CERTOPTS="/p:SigningCertificate=%CERTNAME%"\r
-) else (\r
- set CERTOPTS=\r
-)\r
-if not "%PGO%" EQU "" (\r
- set PGOOPTS=--pgo-job "%PGO%"\r
-) else (\r
- set PGOOPTS=\r
-)\r
-if not "%SKIPBUILD%" EQU "1" (\r
- @echo call "%PCBUILD%build.bat" -e -p %BUILD_PLAT% -t %TARGET% %PGOOPTS% %CERTOPTS%\r
- @call "%PCBUILD%build.bat" -e -p %BUILD_PLAT% -t %TARGET% %PGOOPTS% %CERTOPTS%\r
- @if errorlevel 1 exit /B %ERRORLEVEL%\r
- @rem build.bat turns echo back on, so we disable it again\r
- @echo off\r
-\r
- @echo call "%PCBUILD%build.bat" -d -e -p %BUILD_PLAT% -t %TARGET%\r
- @call "%PCBUILD%build.bat" -d -e -p %BUILD_PLAT% -t %TARGET%\r
- @if errorlevel 1 exit /B %ERRORLEVEL%\r
- @rem build.bat turns echo back on, so we disable it again\r
- @echo off\r
-)\r
-\r
-if "%OUTDIR_PLAT%" EQU "win32" (\r
- %MSBUILD% "%D%launcher\launcher.wixproj" /p:Platform=x86 %CERTOPTS% /p:ReleaseUri=%RELEASE_URI%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-) else if not exist "%Py_OutDir%win32\en-us\launcher.msi" (\r
- %MSBUILD% "%D%launcher\launcher.wixproj" /p:Platform=x86 %CERTOPTS% /p:ReleaseUri=%RELEASE_URI%\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-set BUILDOPTS=/p:Platform=%1 /p:BuildForRelease=true /p:DownloadUrl=%DOWNLOAD_URL% /p:DownloadUrlBase=%DOWNLOAD_URL_BASE% /p:ReleaseUri=%RELEASE_URI%\r
-if defined BUILDMSI (\r
- %MSBUILD% "%D%bundle\releaselocal.wixproj" /t:Rebuild %BUILDOPTS% %CERTOPTS% /p:RebuildAll=true\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
-)\r
-\r
-if defined BUILDZIP (\r
- if "%BUILD_PLAT%" EQU "ARM64" (\r
- echo Skipping embeddable ZIP generation for ARM64 platform\r
- ) else (\r
- %MSBUILD% "%D%make_zip.proj" /t:Build %BUILDOPTS% %CERTOPTS% /p:OutputPath="%BUILD%en-us"\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
- )\r
-)\r
-\r
-if defined BUILDNUGET (\r
- if "%BUILD_PLAT%" EQU "ARM64" (\r
- echo Skipping Nuget package generation for ARM64 platform\r
- ) else (\r
- %MSBUILD% "%D%..\nuget\make_pkg.proj" /t:Build /p:Configuration=Release /p:Platform=%1 /p:OutputPath="%BUILD%en-us"\r
- if errorlevel 1 exit /B %ERRORLEVEL%\r
- )\r
-)\r
-\r
-if not "%OUTDIR%" EQU "" (\r
- mkdir "%OUTDIR%\%OUTDIR_PLAT%"\r
- mkdir "%OUTDIR%\%OUTDIR_PLAT%\binaries"\r
- mkdir "%OUTDIR%\%OUTDIR_PLAT%\symbols"\r
- robocopy "%BUILD%en-us" "%OUTDIR%\%OUTDIR_PLAT%" /XF "*.wixpdb"\r
- robocopy "%BUILD%\" "%OUTDIR%\%OUTDIR_PLAT%\binaries" *.exe *.dll *.pyd /XF "_test*" /XF "*_d.*" /XF "_freeze*" /XF "tcl*" /XF "tk*" /XF "*_test.*"\r
- robocopy "%BUILD%\" "%OUTDIR%\%OUTDIR_PLAT%\symbols" *.pdb /XF "_test*" /XF "*_d.*" /XF "_freeze*" /XF "tcl*" /XF "tk*" /XF "*_test.*"\r
-)\r
-\r
-exit /B 0\r
-\r
-:Help\r
-echo buildrelease.bat [--out DIR] [-x86] [-x64] [-arm64] [--certificate CERTNAME] [--build] [--pgo COMMAND]\r
-echo [--skip-build] [--skip-doc] [--skip-nuget] [--skip-zip] [--skip-pgo]\r
-echo [--download DOWNLOAD URL] [--test TARGETDIR]\r
-echo [-h]\r
-echo.\r
-echo --out (-o) Specify an additional output directory for installers\r
-echo -x86 Build x86 installers\r
-echo -x64 Build x64 installers\r
-echo -arm64 Build ARM64 installers\r
-echo --build (-b) Incrementally build Python rather than rebuilding\r
-echo --skip-build (-B) Do not build Python (just do the installers)\r
-echo --skip-doc (-D) Do not build documentation\r
-echo --pgo Specify PGO command for x64 installers\r
-echo --skip-pgo Build x64 installers without using PGO\r
-echo --skip-msi Do not build executable/MSI packages\r
-echo --skip-nuget Do not build Nuget packages\r
-echo --skip-zip Do not build embeddable package\r
-echo --download Specify the full download URL for MSIs\r
-echo --test Specify the test directory to run the installer tests\r
-echo -h Display this help information\r
-echo.\r
-echo If no architecture is specified, all architectures will be built.\r
-echo If --test is not specified, the installer tests are not run.\r
-echo.\r
-echo For the --pgo option, any Python command line can be used, or 'default' to\r
-echo use the default task (-m test --pgo).\r
-echo.\r
-echo x86 and ARM64 builds will never use PGO. ARM64 builds will never generate\r
-echo embeddable or Nuget packages.\r
-echo.\r
-echo The following substitutions will be applied to the download URL:\r
-echo Variable Description Example\r
-echo {version} version number 3.5.0\r
-echo {arch} architecture amd64, win32\r
-echo {releasename} release name a1, b2, rc3 (or blank for final)\r
-echo {msi} MSI filename core.msi\r
+@setlocal
+@echo off
+
+rem This script is intended for building official releases of Python.
+rem To use it to build alternative releases, you should clone this file
+rem and modify the following three URIs.
+
+rem These two will ensure that your release can be installed
+rem alongside an official Python release, by modifying the GUIDs used
+rem for all components.
+rem
+rem The following substitutions will be applied to the release URI:
+rem Variable Description Example
+rem {arch} architecture amd64, win32
+rem Do not change the scheme to https. Otherwise, releases built with this
+rem script will not be upgradable to/from official releases of Python.
+set RELEASE_URI=http://www.python.org/{arch}
+
+rem This is the URL that will be used to download installation files.
+rem The files available from the default URL *will* conflict with your
+rem installer. Trust me, you don't want them, even if it seems like a
+rem good idea.
+rem
+rem The following substitutions will be applied to the download URL:
+rem Variable Description Example
+rem {version} version number 3.5.0
+rem {arch} architecture amd64, win32
+rem {releasename} release name a1, b2, rc3 (or blank for final)
+rem {msi} MSI filename core.msi
+set DOWNLOAD_URL=https://www.python.org/ftp/python/{version}/{arch}{releasename}/{msi}
+
+set D=%~dp0
+set PCBUILD=%D%..\..\PCbuild\
+if NOT DEFINED Py_OutDir set Py_OutDir=%PCBUILD%
+set EXTERNALS=%D%..\..\externals\windows-installer\
+
+set BUILDX86=
+set BUILDX64=
+set BUILDARM64=
+set TARGET=Rebuild
+set TESTTARGETDIR=
+set PGO=-m test -q --pgo
+set BUILDMSI=1
+set BUILDNUGET=1
+set BUILDZIP=1
+
+
+:CheckOpts
+if "%1" EQU "-h" goto Help
+if "%1" EQU "-c" (set CERTNAME=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--certificate" (set CERTNAME=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "-o" (set OUTDIR=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--out" (set OUTDIR=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "-D" (set SKIPDOC=1) && shift && goto CheckOpts
+if "%1" EQU "--skip-doc" (set SKIPDOC=1) && shift && goto CheckOpts
+if "%1" EQU "-B" (set SKIPBUILD=1) && shift && goto CheckOpts
+if "%1" EQU "--skip-build" (set SKIPBUILD=1) && shift && goto CheckOpts
+if "%1" EQU "--download" (set DOWNLOAD_URL=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--test" (set TESTTARGETDIR=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "-b" (set TARGET=Build) && shift && goto CheckOpts
+if "%1" EQU "--build" (set TARGET=Build) && shift && goto CheckOpts
+if /I "%1" EQU "-x86" (set BUILDX86=1) && shift && goto CheckOpts
+if /I "%1" EQU "-Win32" (set BUILDX86=1) && shift && goto CheckOpts
+if /I "%1" EQU "-x64" (set BUILDX64=1) && shift && goto CheckOpts
+if /I "%1" EQU "-arm64" (set BUILDARM64=1) && shift && goto CheckOpts
+if "%1" EQU "--pgo" (set PGO=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--skip-pgo" (set PGO=) && shift && goto CheckOpts
+if "%1" EQU "--skip-nuget" (set BUILDNUGET=) && shift && goto CheckOpts
+if "%1" EQU "--skip-zip" (set BUILDZIP=) && shift && goto CheckOpts
+if "%1" EQU "--skip-msi" (set BUILDMSI=) && shift && goto CheckOpts
+
+if "%1" NEQ "" echo Invalid option: "%1" && exit /B 1
+
+if not defined BUILDX86 if not defined BUILDX64 if not defined BUILDARM64 (set BUILDX86=1) && (set BUILDX64=1)
+
+if not exist "%GIT%" where git > "%TEMP%\git.loc" 2> nul && set /P GIT= < "%TEMP%\git.loc" & del "%TEMP%\git.loc"
+if not exist "%GIT%" echo Cannot find Git on PATH && exit /B 1
+
+call "%D%get_externals.bat"
+call "%PCBUILD%find_msbuild.bat" %MSBUILD%
+if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)
+
+:builddoc
+if "%SKIPBUILD%" EQU "1" goto skipdoc
+if "%SKIPDOC%" EQU "1" goto skipdoc
+
+call "%D%..\..\doc\make.bat" html
+if errorlevel 1 exit /B %ERRORLEVEL%
+:skipdoc
+
+if defined BUILDX86 (
+ call :build x86
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+if defined BUILDX64 (
+ call :build x64 "%PGO%"
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+if defined BUILDARM64 (
+ call :build ARM64
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+if defined TESTTARGETDIR (
+ call "%D%testrelease.bat" -t "%TESTTARGETDIR%"
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+exit /B 0
+
+:build
+@setlocal
+@echo off
+
+if "%1" EQU "x86" (
+ set PGO=
+ set BUILD=%Py_OutDir%win32\
+ set BUILD_PLAT=Win32
+ set OUTDIR_PLAT=win32
+ set OBJDIR_PLAT=x86
+) else if "%1" EQU "x64" (
+ set BUILD=%Py_OutDir%amd64\
+ set PGO=%~2
+ set BUILD_PLAT=x64
+ set OUTDIR_PLAT=amd64
+ set OBJDIR_PLAT=x64
+) else if "%1" EQU "ARM64" (
+ set BUILD=%Py_OutDir%amd64\
+ set PGO=%~2
+ set BUILD_PLAT=ARM64
+ set OUTDIR_PLAT=arm64
+ set OBJDIR_PLAT=arm64
+) else (
+ echo Unknown platform %1
+ exit /B 1
+)
+
+if exist "%BUILD%en-us" (
+ echo Deleting %BUILD%en-us
+ rmdir /q/s "%BUILD%en-us"
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+if exist "%D%obj\Debug_%OBJDIR_PLAT%" (
+ echo Deleting "%D%obj\Debug_%OBJDIR_PLAT%"
+ rmdir /q/s "%D%obj\Debug_%OBJDIR_PLAT%"
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+if exist "%D%obj\Release_%OBJDIR_PLAT%" (
+ echo Deleting "%D%obj\Release_%OBJDIR_PLAT%"
+ rmdir /q/s "%D%obj\Release_%OBJDIR_PLAT%"
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+if not "%CERTNAME%" EQU "" (
+ set CERTOPTS="/p:SigningCertificate=%CERTNAME%"
+) else (
+ set CERTOPTS=
+)
+if not "%PGO%" EQU "" (
+ set PGOOPTS=--pgo-job "%PGO%"
+) else (
+ set PGOOPTS=
+)
+if not "%SKIPBUILD%" EQU "1" (
+ @echo call "%PCBUILD%build.bat" -e -p %BUILD_PLAT% -t %TARGET% %PGOOPTS% %CERTOPTS%
+ @call "%PCBUILD%build.bat" -e -p %BUILD_PLAT% -t %TARGET% %PGOOPTS% %CERTOPTS%
+ @if errorlevel 1 exit /B %ERRORLEVEL%
+ @rem build.bat turns echo back on, so we disable it again
+ @echo off
+
+ @echo call "%PCBUILD%build.bat" -d -e -p %BUILD_PLAT% -t %TARGET%
+ @call "%PCBUILD%build.bat" -d -e -p %BUILD_PLAT% -t %TARGET%
+ @if errorlevel 1 exit /B %ERRORLEVEL%
+ @rem build.bat turns echo back on, so we disable it again
+ @echo off
+)
+
+if "%OUTDIR_PLAT%" EQU "win32" (
+ %MSBUILD% "%D%launcher\launcher.wixproj" /p:Platform=x86 %CERTOPTS% /p:ReleaseUri=%RELEASE_URI%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+) else if not exist "%Py_OutDir%win32\en-us\launcher.msi" (
+ %MSBUILD% "%D%launcher\launcher.wixproj" /p:Platform=x86 %CERTOPTS% /p:ReleaseUri=%RELEASE_URI%
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+set BUILDOPTS=/p:Platform=%1 /p:BuildForRelease=true /p:DownloadUrl=%DOWNLOAD_URL% /p:DownloadUrlBase=%DOWNLOAD_URL_BASE% /p:ReleaseUri=%RELEASE_URI%
+if defined BUILDMSI (
+ %MSBUILD% "%D%bundle\releaselocal.wixproj" /t:Rebuild %BUILDOPTS% %CERTOPTS% /p:RebuildAll=true
+ if errorlevel 1 exit /B %ERRORLEVEL%
+)
+
+if defined BUILDZIP (
+ if "%BUILD_PLAT%" EQU "ARM64" (
+ echo Skipping embeddable ZIP generation for ARM64 platform
+ ) else (
+ %MSBUILD% "%D%make_zip.proj" /t:Build %BUILDOPTS% %CERTOPTS% /p:OutputPath="%BUILD%en-us"
+ if errorlevel 1 exit /B %ERRORLEVEL%
+ )
+)
+
+if defined BUILDNUGET (
+ if "%BUILD_PLAT%" EQU "ARM64" (
+ echo Skipping Nuget package generation for ARM64 platform
+ ) else (
+ %MSBUILD% "%D%..\nuget\make_pkg.proj" /t:Build /p:Configuration=Release /p:Platform=%1 /p:OutputPath="%BUILD%en-us"
+ if errorlevel 1 exit /B %ERRORLEVEL%
+ )
+)
+
+if not "%OUTDIR%" EQU "" (
+ mkdir "%OUTDIR%\%OUTDIR_PLAT%"
+ mkdir "%OUTDIR%\%OUTDIR_PLAT%\binaries"
+ mkdir "%OUTDIR%\%OUTDIR_PLAT%\symbols"
+ robocopy "%BUILD%en-us" "%OUTDIR%\%OUTDIR_PLAT%" /XF "*.wixpdb"
+ robocopy "%BUILD%\" "%OUTDIR%\%OUTDIR_PLAT%\binaries" *.exe *.dll *.pyd /XF "_test*" /XF "*_d.*" /XF "_freeze*" /XF "tcl*" /XF "tk*" /XF "*_test.*"
+ robocopy "%BUILD%\" "%OUTDIR%\%OUTDIR_PLAT%\symbols" *.pdb /XF "_test*" /XF "*_d.*" /XF "_freeze*" /XF "tcl*" /XF "tk*" /XF "*_test.*"
+)
+
+exit /B 0
+
+:Help
+echo buildrelease.bat [--out DIR] [-x86] [-x64] [-arm64] [--certificate CERTNAME] [--build] [--pgo COMMAND]
+echo [--skip-build] [--skip-doc] [--skip-nuget] [--skip-zip] [--skip-pgo]
+echo [--download DOWNLOAD URL] [--test TARGETDIR]
+echo [-h]
+echo.
+echo --out (-o) Specify an additional output directory for installers
+echo -x86 Build x86 installers
+echo -x64 Build x64 installers
+echo -arm64 Build ARM64 installers
+echo --build (-b) Incrementally build Python rather than rebuilding
+echo --skip-build (-B) Do not build Python (just do the installers)
+echo --skip-doc (-D) Do not build documentation
+echo --pgo Specify PGO command for x64 installers
+echo --skip-pgo Build x64 installers without using PGO
+echo --skip-msi Do not build executable/MSI packages
+echo --skip-nuget Do not build Nuget packages
+echo --skip-zip Do not build embeddable package
+echo --download Specify the full download URL for MSIs
+echo --test Specify the test directory to run the installer tests
+echo -h Display this help information
+echo.
+echo If no architecture is specified, all architectures will be built.
+echo If --test is not specified, the installer tests are not run.
+echo.
+echo For the --pgo option, any Python command line can be used, or 'default' to
+echo use the default task (-m test --pgo).
+echo.
+echo x86 and ARM64 builds will never use PGO. ARM64 builds will never generate
+echo embeddable or Nuget packages.
+echo.
+echo The following substitutions will be applied to the download URL:
+echo Variable Description Example
+echo {version} version number 3.5.0
+echo {arch} architecture amd64, win32
+echo {releasename} release name a1, b2, rc3 (or blank for final)
+echo {msi} MSI filename core.msi
-\r
-Microsoft Visual Studio Solution File, Format Version 12.00\r
-# Visual Studio 2013\r
-VisualStudioVersion = 12.0.30501.0\r
-MinimumVisualStudioVersion = 10.0.40219.1\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pythonba", "pythonba.vcxproj", "{7A09B132-B3EE-499B-A700-A4B2157FEA3D}"\r
-EndProject\r
-Global\r
- GlobalSection(SolutionConfigurationPlatforms) = preSolution\r
- Debug|Win32 = Debug|Win32\r
- Release|Win32 = Release|Win32\r
- EndGlobalSection\r
- GlobalSection(ProjectConfigurationPlatforms) = postSolution\r
- {7A09B132-B3EE-499B-A700-A4B2157FEA3D}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {7A09B132-B3EE-499B-A700-A4B2157FEA3D}.Debug|Win32.Build.0 = Debug|Win32\r
- {7A09B132-B3EE-499B-A700-A4B2157FEA3D}.Release|Win32.ActiveCfg = Release|Win32\r
- {7A09B132-B3EE-499B-A700-A4B2157FEA3D}.Release|Win32.Build.0 = Release|Win32\r
- EndGlobalSection\r
- GlobalSection(SolutionProperties) = preSolution\r
- HideSolutionNode = FALSE\r
- EndGlobalSection\r
-EndGlobal\r
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2013
+VisualStudioVersion = 12.0.30501.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pythonba", "pythonba.vcxproj", "{7A09B132-B3EE-499B-A700-A4B2157FEA3D}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Win32 = Debug|Win32
+ Release|Win32 = Release|Win32
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {7A09B132-B3EE-499B-A700-A4B2157FEA3D}.Debug|Win32.ActiveCfg = Debug|Win32
+ {7A09B132-B3EE-499B-A700-A4B2157FEA3D}.Debug|Win32.Build.0 = Debug|Win32
+ {7A09B132-B3EE-499B-A700-A4B2157FEA3D}.Release|Win32.ActiveCfg = Release|Win32
+ {7A09B132-B3EE-499B-A700-A4B2157FEA3D}.Release|Win32.Build.0 = Release|Win32
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+EndGlobal
-<?xml version="1.0" encoding="utf-8"?>\r
-<!--\r
- <copyright file="wixstdba.vcxproj" company="Outercurve Foundation">\r
- Copyright (c) 2004, Outercurve Foundation.\r
- This software is released under Microsoft Reciprocal License (MS-RL).\r
- The license and further copyright text can be found in the file\r
- LICENSE.TXT at the root directory of the distribution.\r
- </copyright>\r
--->\r
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <ItemGroup Label="ProjectConfigurations">\r
- <ProjectConfiguration Include="Debug|Win32">\r
- <Configuration>Debug</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- <ProjectConfiguration Include="Release|Win32">\r
- <Configuration>Release</Configuration>\r
- <Platform>Win32</Platform>\r
- </ProjectConfiguration>\r
- </ItemGroup>\r
- <PropertyGroup Label="Globals">\r
- <Configuration Condition="'$(Configuration)' == ''">Release</Configuration>\r
- <Platform Condition="'$(Platform)' == ''">Win32</Platform>\r
- <PlatformToolset Condition="'$(PlatformToolset)' == '' and '$(VisualStudioVersion)' == '17.0'">v143</PlatformToolset>\r
- <PlatformToolset Condition="'$(PlatformToolset)' == '' and '$(VisualStudioVersion)' == '16.0'">v142</PlatformToolset>\r
- <PlatformToolset Condition="'$(PlatformToolset)' == '' and ('$(MSBuildToolsVersion)' == '15.0' or '$(VisualStudioVersion)' == '15.0')">v141</PlatformToolset>\r
- <PlatformToolset Condition="'$(PlatformToolset)' == ''">v140</PlatformToolset>\r
- <ProjectGuid>{7A09B132-B3EE-499B-A700-A4B2157FEA3D}</ProjectGuid>\r
- <TargetName>PythonBA</TargetName>\r
- </PropertyGroup>\r
- <Import Project="..\..\wix.props" />\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />\r
- <PropertyGroup Label="Configuration">\r
- <ConfigurationType>DynamicLibrary</ConfigurationType>\r
- <CharacterSet>Unicode</CharacterSet>\r
- <Py_IntDir Condition="'$(Py_IntDir)' == ''">$(PySourcePath)PCbuild\obj\</Py_IntDir>\r
- <IntDir>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)$(ArchName)_$(Configuration)\msi_$(ProjectName)\</IntDir>\r
- <IntDir>$(IntDir.Replace(`\\`, `\`))</IntDir>\r
- <OutDir>$(IntDir)</OutDir>\r
- </PropertyGroup>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />\r
- <ItemDefinitionGroup>\r
- <ClCompile>\r
- <PreprocessorDefinitions Condition="$(BuildForPlatform) == 'ARM64'">ARM64=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>\r
- <PreprocessorDefinitions>_CRT_STDIO_LEGACY_WIDE_SPECIFIERS=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>\r
- <AdditionalIncludeDirectories>$(WixInstallPath)sdk\inc</AdditionalIncludeDirectories>\r
- <PrecompiledHeader>Use</PrecompiledHeader>\r
- <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>\r
- <RuntimeLibrary>MultiThreaded</RuntimeLibrary>\r
- </ClCompile>\r
- <Link>\r
- <AdditionalDependencies>comctl32.lib;gdiplus.lib;msimg32.lib;shlwapi.lib;wininet.lib;dutil.lib;balutil.lib;version.lib;uxtheme.lib;%(AdditionalDependencies)</AdditionalDependencies>\r
- <AdditionalLibraryDirectories Condition="$(PlatformToolset.StartsWith(`v14`))">$(WixInstallPath)sdk\vs2017\lib\x86</AdditionalLibraryDirectories>\r
- <AdditionalLibraryDirectories Condition="'$(PlatformToolset)' == 'v140'">$(WixInstallPath)sdk\vs2015\lib\x86</AdditionalLibraryDirectories>\r
- <AdditionalLibraryDirectories Condition="'$(PlatformToolset)' == 'v120'">$(WixInstallPath)sdk\vs2013\lib\x86</AdditionalLibraryDirectories>\r
- <ModuleDefinitionFile>pythonba.def</ModuleDefinitionFile>\r
- <GenerateDebugInformation Condition="'$(Configuration)'=='Debug'">true</GenerateDebugInformation>\r
- </Link>\r
- </ItemDefinitionGroup>\r
- <ItemGroup>\r
- <ClCompile Include="PythonBootstrapperApplication.cpp" />\r
- <ClCompile Include="pythonba.cpp" />\r
- <ClCompile Include="pch.cpp">\r
- <PrecompiledHeader>Create</PrecompiledHeader>\r
- </ClCompile>\r
- </ItemGroup>\r
- <ItemGroup>\r
- <ClInclude Include="pch.h" />\r
- <ClInclude Include="resource.h" />\r
- </ItemGroup>\r
- <ItemGroup>\r
- <None Include="pythonba.def" />\r
- </ItemGroup>\r
- <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ <copyright file="wixstdba.vcxproj" company="Outercurve Foundation">
+ Copyright (c) 2004, Outercurve Foundation.
+ This software is released under Microsoft Reciprocal License (MS-RL).
+ The license and further copyright text can be found in the file
+ LICENSE.TXT at the root directory of the distribution.
+ </copyright>
+-->
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <ItemGroup Label="ProjectConfigurations">
+ <ProjectConfiguration Include="Debug|Win32">
+ <Configuration>Debug</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ <ProjectConfiguration Include="Release|Win32">
+ <Configuration>Release</Configuration>
+ <Platform>Win32</Platform>
+ </ProjectConfiguration>
+ </ItemGroup>
+ <PropertyGroup Label="Globals">
+ <Configuration Condition="'$(Configuration)' == ''">Release</Configuration>
+ <Platform Condition="'$(Platform)' == ''">Win32</Platform>
+ <PlatformToolset Condition="'$(PlatformToolset)' == '' and '$(VisualStudioVersion)' == '17.0'">v143</PlatformToolset>
+ <PlatformToolset Condition="'$(PlatformToolset)' == '' and '$(VisualStudioVersion)' == '16.0'">v142</PlatformToolset>
+ <PlatformToolset Condition="'$(PlatformToolset)' == '' and ('$(MSBuildToolsVersion)' == '15.0' or '$(VisualStudioVersion)' == '15.0')">v141</PlatformToolset>
+ <PlatformToolset Condition="'$(PlatformToolset)' == ''">v140</PlatformToolset>
+ <ProjectGuid>{7A09B132-B3EE-499B-A700-A4B2157FEA3D}</ProjectGuid>
+ <TargetName>PythonBA</TargetName>
+ </PropertyGroup>
+ <Import Project="..\..\wix.props" />
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+ <PropertyGroup Label="Configuration">
+ <ConfigurationType>DynamicLibrary</ConfigurationType>
+ <CharacterSet>Unicode</CharacterSet>
+ <Py_IntDir Condition="'$(Py_IntDir)' == ''">$(PySourcePath)PCbuild\obj\</Py_IntDir>
+ <IntDir>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)$(ArchName)_$(Configuration)\msi_$(ProjectName)\</IntDir>
+ <IntDir>$(IntDir.Replace(`\\`, `\`))</IntDir>
+ <OutDir>$(IntDir)</OutDir>
+ </PropertyGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+ <ItemDefinitionGroup>
+ <ClCompile>
+ <PreprocessorDefinitions Condition="$(BuildForPlatform) == 'ARM64'">ARM64=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <PreprocessorDefinitions>_CRT_STDIO_LEGACY_WIDE_SPECIFIERS=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <AdditionalIncludeDirectories>$(WixInstallPath)sdk\inc</AdditionalIncludeDirectories>
+ <PrecompiledHeader>Use</PrecompiledHeader>
+ <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
+ <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+ </ClCompile>
+ <Link>
+ <AdditionalDependencies>comctl32.lib;gdiplus.lib;msimg32.lib;shlwapi.lib;wininet.lib;dutil.lib;balutil.lib;version.lib;uxtheme.lib;%(AdditionalDependencies)</AdditionalDependencies>
+ <AdditionalLibraryDirectories Condition="$(PlatformToolset.StartsWith(`v14`))">$(WixInstallPath)sdk\vs2017\lib\x86</AdditionalLibraryDirectories>
+ <AdditionalLibraryDirectories Condition="'$(PlatformToolset)' == 'v140'">$(WixInstallPath)sdk\vs2015\lib\x86</AdditionalLibraryDirectories>
+ <AdditionalLibraryDirectories Condition="'$(PlatformToolset)' == 'v120'">$(WixInstallPath)sdk\vs2013\lib\x86</AdditionalLibraryDirectories>
+ <ModuleDefinitionFile>pythonba.def</ModuleDefinitionFile>
+ <GenerateDebugInformation Condition="'$(Configuration)'=='Debug'">true</GenerateDebugInformation>
+ </Link>
+ </ItemDefinitionGroup>
+ <ItemGroup>
+ <ClCompile Include="PythonBootstrapperApplication.cpp" />
+ <ClCompile Include="pythonba.cpp" />
+ <ClCompile Include="pch.cpp">
+ <PrecompiledHeader>Create</PrecompiledHeader>
+ </ClCompile>
+ </ItemGroup>
+ <ItemGroup>
+ <ClInclude Include="pch.h" />
+ <ClInclude Include="resource.h" />
+ </ItemGroup>
+ <ItemGroup>
+ <None Include="pythonba.def" />
+ </ItemGroup>
+ <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+</Project>
-@echo off\r
-setlocal\r
-rem Simple script to fetch source for external libraries\r
-\r
-set HERE=%~dp0\r
-if "%PCBUILD%"=="" (set PCBUILD=%HERE%..\..\PCbuild\)\r
-if "%EXTERNALS_DIR%"=="" (set EXTERNALS_DIR=%HERE%..\..\externals\windows-installer)\r
-if "%NUGET%"=="" (set NUGET=%EXTERNALS_DIR%\..\nuget.exe)\r
-if "%NUGET_URL%"=="" (set NUGET_URL=https://aka.ms/nugetclidl)\r
-\r
-set DO_FETCH=true\r
-set DO_CLEAN=false\r
-\r
-:CheckOpts\r
-if "%~1"=="--python" (set PYTHON=%2) & shift & shift & goto CheckOpts\r
-if "%~1"=="--organization" (set ORG=%2) & shift & shift & goto CheckOpts\r
-if "%~1"=="-c" (set DO_CLEAN=true) & shift & goto CheckOpts\r
-if "%~1"=="--clean" (set DO_CLEAN=true) & shift & goto CheckOpts\r
-if "%~1"=="--clean-only" (set DO_FETCH=false) & goto clean\r
-if "x%~1" NEQ "x" goto usage\r
-\r
-if "%DO_CLEAN%"=="false" goto fetch\r
-:clean\r
-echo.Cleaning up external libraries.\r
-if exist "%EXTERNALS_DIR%" (\r
- rem Sometimes this fails the first time; try it twice\r
- rmdir /s /q "%EXTERNALS_DIR%" || rmdir /s /q "%EXTERNALS_DIR%"\r
-)\r
-\r
-if "%DO_FETCH%"=="false" goto end\r
-:fetch\r
-\r
-if "%ORG%"=="" (set ORG=python)\r
-\r
-call "%PCBUILD%\find_python.bat" "%PYTHON%"\r
-\r
-echo.Fetching external libraries...\r
-\r
-set libraries=\r
-\r
-for %%e in (%libraries%) do (\r
- if exist "%EXTERNALS_DIR%\%%e" (\r
- echo.%%e already exists, skipping.\r
- ) else (\r
- echo.Fetching %%e...\r
- %PYTHON% "%PCBUILD%get_external.py" -e "%EXTERNALS_DIR%" -O %ORG% %%e\r
- )\r
-)\r
-\r
-echo.Fetching external tools...\r
-\r
-set binaries=\r
-rem We always use whatever's latest in the repo for these\r
-set binaries=%binaries% binutils\r
-set binaries=%binaries% gpg\r
-set binaries=%binaries% htmlhelp\r
-set binaries=%binaries% nuget\r
-set binaries=%binaries% redist-1\r
-set binaries=%binaries% wix-314\r
-\r
-for %%b in (%binaries%) do (\r
- if exist "%EXTERNALS_DIR%\%%b" (\r
- echo.%%b already exists, skipping.\r
- ) else (\r
- echo.Fetching %%b...\r
- %PYTHON% "%PCBUILD%get_external.py" -e "%EXTERNALS_DIR%" -b -O %ORG% %%b\r
- )\r
-)\r
-\r
-echo Finished.\r
-goto end\r
-\r
-:usage\r
-echo.Valid options: -c, --clean, --clean-only, --organization, --python,\r
-echo.--no-tkinter, --no-openssl\r
-echo.\r
-echo.Pull all sources and binaries necessary for compiling optional extension\r
-echo.modules that rely on external libraries.\r
-echo.\r
-echo.The --organization option determines which github organization to download\r
-echo.from, the --python option determines which Python 3.6+ interpreter to use\r
-echo.with PCbuild\get_external.py.\r
-echo.\r
-echo.Use the -c or --clean option to remove the entire externals directory.\r
-echo.\r
-echo.Use the --clean-only option to do the same cleaning, without pulling in\r
-echo.anything new.\r
-echo.\r
-exit /b -1\r
-\r
-:end\r
+@echo off
+setlocal
+rem Simple script to fetch source for external libraries
+
+set HERE=%~dp0
+if "%PCBUILD%"=="" (set PCBUILD=%HERE%..\..\PCbuild\)
+if "%EXTERNALS_DIR%"=="" (set EXTERNALS_DIR=%HERE%..\..\externals\windows-installer)
+if "%NUGET%"=="" (set NUGET=%EXTERNALS_DIR%\..\nuget.exe)
+if "%NUGET_URL%"=="" (set NUGET_URL=https://aka.ms/nugetclidl)
+
+set DO_FETCH=true
+set DO_CLEAN=false
+
+:CheckOpts
+if "%~1"=="--python" (set PYTHON=%2) & shift & shift & goto CheckOpts
+if "%~1"=="--organization" (set ORG=%2) & shift & shift & goto CheckOpts
+if "%~1"=="-c" (set DO_CLEAN=true) & shift & goto CheckOpts
+if "%~1"=="--clean" (set DO_CLEAN=true) & shift & goto CheckOpts
+if "%~1"=="--clean-only" (set DO_FETCH=false) & goto clean
+if "x%~1" NEQ "x" goto usage
+
+if "%DO_CLEAN%"=="false" goto fetch
+:clean
+echo.Cleaning up external libraries.
+if exist "%EXTERNALS_DIR%" (
+ rem Sometimes this fails the first time; try it twice
+ rmdir /s /q "%EXTERNALS_DIR%" || rmdir /s /q "%EXTERNALS_DIR%"
+)
+
+if "%DO_FETCH%"=="false" goto end
+:fetch
+
+if "%ORG%"=="" (set ORG=python)
+
+call "%PCBUILD%\find_python.bat" "%PYTHON%"
+
+echo.Fetching external libraries...
+
+set libraries=
+
+for %%e in (%libraries%) do (
+ if exist "%EXTERNALS_DIR%\%%e" (
+ echo.%%e already exists, skipping.
+ ) else (
+ echo.Fetching %%e...
+ %PYTHON% "%PCBUILD%get_external.py" -e "%EXTERNALS_DIR%" -O %ORG% %%e
+ )
+)
+
+echo.Fetching external tools...
+
+set binaries=
+rem We always use whatever's latest in the repo for these
+set binaries=%binaries% binutils
+set binaries=%binaries% gpg
+set binaries=%binaries% htmlhelp
+set binaries=%binaries% nuget
+set binaries=%binaries% redist-1
+set binaries=%binaries% wix-314
+
+for %%b in (%binaries%) do (
+ if exist "%EXTERNALS_DIR%\%%b" (
+ echo.%%b already exists, skipping.
+ ) else (
+ echo.Fetching %%b...
+ %PYTHON% "%PCBUILD%get_external.py" -e "%EXTERNALS_DIR%" -b -O %ORG% %%b
+ )
+)
+
+echo Finished.
+goto end
+
+:usage
+echo.Valid options: -c, --clean, --clean-only, --organization, --python,
+echo.--no-tkinter, --no-openssl
+echo.
+echo.Pull all sources and binaries necessary for compiling optional extension
+echo.modules that rely on external libraries.
+echo.
+echo.The --organization option determines which github organization to download
+echo.from, the --python option determines which Python 3.6+ interpreter to use
+echo.with PCbuild\get_external.py.
+echo.
+echo.Use the -c or --clean option to remove the entire externals directory.
+echo.
+echo.Use the --clean-only option to do the same cleaning, without pulling in
+echo.anything new.
+echo.
+exit /b -1
+
+:end
-<#\r
-.Synopsis\r
- Compiles and signs an APPX package\r
-.Description\r
- Given the file listing, ensures all the contents are signed\r
- and builds and signs the final package.\r
-.Parameter mapfile\r
- The location on disk of the text mapping file.\r
-.Parameter msix\r
- The path and name to store the APPX/MSIX.\r
-.Parameter sign\r
- When set, signs the APPX/MSIX. Packages to be published to\r
- the store should not be signed.\r
-.Parameter description\r
- Description to embed in the signature (optional).\r
-.Parameter certname\r
- The name of the certificate to sign with (optional).\r
-.Parameter certsha1\r
- The SHA1 hash of the certificate to sign with (optional).\r
-#>\r
-param(\r
- [Parameter(Mandatory=$true)][string]$layout,\r
- [Parameter(Mandatory=$true)][string]$msix,\r
- [switch]$sign,\r
- [string]$description,\r
- [string]$certname,\r
- [string]$certsha1,\r
- [string]$certfile\r
-)\r
-\r
-$tools = $script:MyInvocation.MyCommand.Path | Split-Path -parent;\r
-Import-Module $tools\sdktools.psm1 -WarningAction SilentlyContinue -Force\r
-\r
-Set-Alias makeappx (Find-Tool "makeappx.exe") -Scope Script\r
-Set-Alias makepri (Find-Tool "makepri.exe") -Scope Script\r
-\r
-$msixdir = Split-Path $msix -Parent\r
-if ($msixdir) {\r
- $msixdir = (mkdir -Force $msixdir).FullName\r
-} else {\r
- $msixdir = Get-Location\r
-}\r
-$msix = Join-Path $msixdir (Split-Path $msix -Leaf)\r
-\r
-pushd $layout\r
-try {\r
- if (Test-Path resources.pri) {\r
- del resources.pri\r
- }\r
- $name = ([xml](gc AppxManifest.xml)).Package.Identity.Name\r
- makepri new /pr . /mn AppxManifest.xml /in $name /cf _resources.xml /of _resources.pri /mf appx /o\r
- if (-not $? -or -not (Test-Path _resources.map.txt)) {\r
- throw "makepri step failed"\r
- }\r
- $lines = gc _resources.map.txt\r
- $lines | ?{ -not ($_ -match '"_resources[\w\.]+?"') } | Out-File _resources.map.txt -Encoding utf8\r
- makeappx pack /f _resources.map.txt /m AppxManifest.xml /o /p $msix\r
- if (-not $?) {\r
- throw "makeappx step failed"\r
- }\r
-} finally {\r
- popd\r
-}\r
-\r
-if ($sign) {\r
- Sign-File -certname $certname -certsha1 $certsha1 -certfile $certfile -description $description -files $msix\r
-\r
- if (-not $?) {\r
- throw "Package signing failed"\r
- }\r
-}\r
+<#
+.Synopsis
+ Compiles and signs an APPX package
+.Description
+ Given the file listing, ensures all the contents are signed
+ and builds and signs the final package.
+.Parameter mapfile
+ The location on disk of the text mapping file.
+.Parameter msix
+ The path and name to store the APPX/MSIX.
+.Parameter sign
+ When set, signs the APPX/MSIX. Packages to be published to
+ the store should not be signed.
+.Parameter description
+ Description to embed in the signature (optional).
+.Parameter certname
+ The name of the certificate to sign with (optional).
+.Parameter certsha1
+ The SHA1 hash of the certificate to sign with (optional).
+#>
+param(
+ [Parameter(Mandatory=$true)][string]$layout,
+ [Parameter(Mandatory=$true)][string]$msix,
+ [switch]$sign,
+ [string]$description,
+ [string]$certname,
+ [string]$certsha1,
+ [string]$certfile
+)
+
+$tools = $script:MyInvocation.MyCommand.Path | Split-Path -parent;
+Import-Module $tools\sdktools.psm1 -WarningAction SilentlyContinue -Force
+
+Set-Alias makeappx (Find-Tool "makeappx.exe") -Scope Script
+Set-Alias makepri (Find-Tool "makepri.exe") -Scope Script
+
+$msixdir = Split-Path $msix -Parent
+if ($msixdir) {
+ $msixdir = (mkdir -Force $msixdir).FullName
+} else {
+ $msixdir = Get-Location
+}
+$msix = Join-Path $msixdir (Split-Path $msix -Leaf)
+
+pushd $layout
+try {
+ if (Test-Path resources.pri) {
+ del resources.pri
+ }
+ $name = ([xml](gc AppxManifest.xml)).Package.Identity.Name
+ makepri new /pr . /mn AppxManifest.xml /in $name /cf _resources.xml /of _resources.pri /mf appx /o
+ if (-not $? -or -not (Test-Path _resources.map.txt)) {
+ throw "makepri step failed"
+ }
+ $lines = gc _resources.map.txt
+ $lines | ?{ -not ($_ -match '"_resources[\w\.]+?"') } | Out-File _resources.map.txt -Encoding utf8
+ makeappx pack /f _resources.map.txt /m AppxManifest.xml /o /p $msix
+ if (-not $?) {
+ throw "makeappx step failed"
+ }
+} finally {
+ popd
+}
+
+if ($sign) {
+ Sign-File -certname $certname -certsha1 $certsha1 -certfile $certfile -description $description -files $msix
+
+ if (-not $?) {
+ throw "Package signing failed"
+ }
+}
-<#\r
-.Synopsis\r
- Compiles and signs a catalog file.\r
-.Description\r
- Given the CDF definition file, builds and signs a catalog.\r
-.Parameter catalog\r
- The path to the catalog definition file to compile and\r
- sign. It is assumed that the .cat file will be the same\r
- name with a new extension.\r
-.Parameter outfile\r
- The path to move the built .cat file to (optional).\r
-.Parameter description\r
- The description to add to the signature (optional).\r
-.Parameter certname\r
- The name of the certificate to sign with (optional).\r
-.Parameter certsha1\r
- The SHA1 hash of the certificate to sign with (optional).\r
-#>\r
-param(\r
- [Parameter(Mandatory=$true)][string]$catalog,\r
- [string]$outfile,\r
- [switch]$sign,\r
- [string]$description,\r
- [string]$certname,\r
- [string]$certsha1,\r
- [string]$certfile\r
-)\r
-\r
-$tools = $script:MyInvocation.MyCommand.Path | Split-Path -parent;\r
-Import-Module $tools\sdktools.psm1 -WarningAction SilentlyContinue -Force\r
-\r
-Set-Alias MakeCat (Find-Tool "makecat.exe") -Scope Script\r
-\r
-MakeCat $catalog\r
-if (-not $?) {\r
- throw "Catalog compilation failed"\r
-}\r
-if ($sign) {\r
- Sign-File -certname $certname -certsha1 $certsha1 -certfile $certfile -description $description -files @($catalog -replace 'cdf$', 'cat')\r
-}\r
-\r
-if ($outfile) {\r
- Split-Path -Parent $outfile | ?{ $_ } | %{ mkdir -Force $_; }\r
- Move-Item ($catalog -replace 'cdf$', 'cat') $outfile\r
-}\r
+<#
+.Synopsis
+ Compiles and signs a catalog file.
+.Description
+ Given the CDF definition file, builds and signs a catalog.
+.Parameter catalog
+ The path to the catalog definition file to compile and
+ sign. It is assumed that the .cat file will be the same
+ name with a new extension.
+.Parameter outfile
+ The path to move the built .cat file to (optional).
+.Parameter description
+ The description to add to the signature (optional).
+.Parameter certname
+ The name of the certificate to sign with (optional).
+.Parameter certsha1
+ The SHA1 hash of the certificate to sign with (optional).
+#>
+param(
+ [Parameter(Mandatory=$true)][string]$catalog,
+ [string]$outfile,
+ [switch]$sign,
+ [string]$description,
+ [string]$certname,
+ [string]$certsha1,
+ [string]$certfile
+)
+
+$tools = $script:MyInvocation.MyCommand.Path | Split-Path -parent;
+Import-Module $tools\sdktools.psm1 -WarningAction SilentlyContinue -Force
+
+Set-Alias MakeCat (Find-Tool "makecat.exe") -Scope Script
+
+MakeCat $catalog
+if (-not $?) {
+ throw "Catalog compilation failed"
+}
+if ($sign) {
+ Sign-File -certname $certname -certsha1 $certsha1 -certfile $certfile -description $description -files @($catalog -replace 'cdf$', 'cat')
+}
+
+if ($outfile) {
+ Split-Path -Parent $outfile | ?{ $_ } | %{ mkdir -Force $_; }
+ Move-Item ($catalog -replace 'cdf$', 'cat') $outfile
+}
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <PropertyGroup>\r
- <ProjectGuid>{10487945-15D1-4092-A214-338395C4116B}</ProjectGuid>\r
- <OutputName>python</OutputName>\r
- <OutputSuffix></OutputSuffix>\r
- <SupportSigning>false</SupportSigning>\r
- </PropertyGroup>\r
-\r
- <Import Project="msi.props" />\r
-\r
- <PropertyGroup>\r
- <SignOutput>false</SignOutput>\r
- <TargetName>python-$(PythonVersion)-embed-$(ArchName)</TargetName>\r
- <TargetExt>.zip</TargetExt>\r
- <TargetPath>$(OutputPath)\$(TargetName)$(TargetExt)</TargetPath>\r
- <CleanCommand>rmdir /q/s "$(IntermediateOutputPath)\zip_$(ArchName)"</CleanCommand>\r
- <Arguments>"$(PythonExe)" "$(PySourcePath)PC\layout"</Arguments>\r
- <Arguments>$(Arguments) -b "$(BuildPath.TrimEnd(`\`))" -s "$(PySourcePath.TrimEnd(`\`))"</Arguments>\r
- <Arguments>$(Arguments) -t "$(IntermediateOutputPath)\zip_$(ArchName)"</Arguments>\r
- <Arguments>$(Arguments) --zip "$(TargetPath)"</Arguments>\r
- <Arguments>$(Arguments) --precompile --zip-lib --include-underpth --include-stable --flat-dlls</Arguments>\r
- <Environment>$(Environment)%0D%0Aset PYTHONPATH=$(PySourcePath)Lib</Environment>\r
- </PropertyGroup>\r
-\r
- <Target Name="_Build">\r
- <Exec Command="setlocal%0D%0A$(Environment)%0D%0A$(CleanCommand)%0D%0A$(Arguments)" />\r
- </Target>\r
-\r
- <Target Name="AfterBuild" />\r
- <Target Name="Build" DependsOnTargets="_Build;AfterBuild" />\r
-\r
- <Target Name="ShowHashes">\r
- <ItemGroup>\r
- <UserFiles Include="@(File)" Condition="'%(File.CopyTo)' == '$(EXETarget)'" />\r
- </ItemGroup>\r
-\r
- <Exec Command=""$(PythonExe)" generate_md5.py @(UserFiles->'"%(FullPath)"',' ')" />\r
- </Target>\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <PropertyGroup>
+ <ProjectGuid>{10487945-15D1-4092-A214-338395C4116B}</ProjectGuid>
+ <OutputName>python</OutputName>
+ <OutputSuffix></OutputSuffix>
+ <SupportSigning>false</SupportSigning>
+ </PropertyGroup>
+
+ <Import Project="msi.props" />
+
+ <PropertyGroup>
+ <SignOutput>false</SignOutput>
+ <TargetName>python-$(PythonVersion)-embed-$(ArchName)</TargetName>
+ <TargetExt>.zip</TargetExt>
+ <TargetPath>$(OutputPath)\$(TargetName)$(TargetExt)</TargetPath>
+ <CleanCommand>rmdir /q/s "$(IntermediateOutputPath)\zip_$(ArchName)"</CleanCommand>
+ <Arguments>"$(PythonExe)" "$(PySourcePath)PC\layout"</Arguments>
+ <Arguments>$(Arguments) -b "$(BuildPath.TrimEnd(`\`))" -s "$(PySourcePath.TrimEnd(`\`))"</Arguments>
+ <Arguments>$(Arguments) -t "$(IntermediateOutputPath)\zip_$(ArchName)"</Arguments>
+ <Arguments>$(Arguments) --zip "$(TargetPath)"</Arguments>
+ <Arguments>$(Arguments) --precompile --zip-lib --include-underpth --include-stable --flat-dlls</Arguments>
+ <Environment>$(Environment)%0D%0Aset PYTHONPATH=$(PySourcePath)Lib</Environment>
+ </PropertyGroup>
+
+ <Target Name="_Build">
+ <Exec Command="setlocal%0D%0A$(Environment)%0D%0A$(CleanCommand)%0D%0A$(Arguments)" />
+ </Target>
+
+ <Target Name="AfterBuild" />
+ <Target Name="Build" DependsOnTargets="_Build;AfterBuild" />
+
+ <Target Name="ShowHashes">
+ <ItemGroup>
+ <UserFiles Include="@(File)" Condition="'%(File.CopyTo)' == '$(EXETarget)'" />
+ </ItemGroup>
+
+ <Exec Command=""$(PythonExe)" generate_md5.py @(UserFiles->'"%(FullPath)"',' ')" />
+ </Target>
+</Project>
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" TreatAsLocalProperty="ReleaseUri">\r
- <PropertyGroup>\r
- <TargetName>$(OutputName)</TargetName>\r
- <DefineSolutionProperties>false</DefineSolutionProperties>\r
- <TreatWarningsAsErrors>false</TreatWarningsAsErrors>\r
- <SuppressIces>$(SuppressIces);ICE03;ICE57;ICE61</SuppressIces>\r
- <CompilerSuppressSpecificWarnings>1026</CompilerSuppressSpecificWarnings>\r
- <BuildForRelease Condition="'$(BuildForRelease)' == ''">false</BuildForRelease>\r
- <SignOutput Condition="'$(SigningCertificate)' != ''">true</SignOutput>\r
- <Configuration Condition="'$(Configuration)' == ''">Release</Configuration>\r
- <Platform Condition="'$(Platform)' == ''">x86</Platform>\r
- <InstallScope Condition="'$(InstallScope)' != 'perMachine'">perUser</InstallScope>\r
- <_MakeCatCommand Condition="'$(_MakeCatCommand)' == ''">makecat</_MakeCatCommand>\r
- <SkipCopySSLDLL>true</SkipCopySSLDLL>\r
- </PropertyGroup>\r
-\r
- <Import Project="wix.props" />\r
- <Import Project="..\..\PCbuild\openssl.props" />\r
- <Import Project="..\..\PCbuild\tcltk.props" />\r
-\r
- <PropertyGroup>\r
- <!--\r
- This URI is used to generate the various GUIDs used by the installer.\r
- Installers built with the same URI will upgrade each other or block\r
- when attempting to downgrade.\r
- \r
- By default, this is the local computer name, which will produce\r
- installers that do not interfere with other installers. Products\r
- that intend to bundle Python should rebuild these modules with their\r
- own URI to avoid conflicting with the official releases.\r
- \r
- The official releases use "https://www.python.org/$(ArchName)"\r
- \r
- This is not the same as the DownloadUrl property used in the bundle\r
- projects.\r
- -->\r
- <ReleaseUri Condition="'$(ReleaseUri)' == ''">$(ComputerName)/$(ArchName)/</ReleaseUri>\r
- <ReleaseUri Condition="!$(ReleaseUri.EndsWith(`/`))">$(ReleaseUri)/</ReleaseUri>\r
- </PropertyGroup>\r
-\r
- \r
- <ItemGroup>\r
- <Compile Include="$(MSBuildThisFileDirectory)common.wxs" />\r
- <WxlTemplate Include="$(MSBuildThisFileDirectory)\*.wxl_template" Condition="$(IgnoreCommonWxlTemplates) != 'true'" />\r
- <WixExtension Include="WixUtilExtension">\r
- <HintPath>WixUtilExtension</HintPath>\r
- <Name>WixUtilExtension</Name>\r
- </WixExtension>\r
- </ItemGroup>\r
-\r
- <PropertyGroup>\r
- <IntermediateOutputPath>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)$(ArchName)_$(Configuration)\msi_$(OutputName)</IntermediateOutputPath>\r
- <IntermediateOutputPath Condition="'$(OutputSuffix)' != ''">$(IntermediateOutputPath)_$(OutputSuffix)</IntermediateOutputPath>\r
- <OutputPath Condition="'$(OutputPath)' == ''">$(BuildPath)</OutputPath>\r
- <OutputPath Condition="!HasTrailingSlash($(OutputPath))">$(OutputPath)\</OutputPath>\r
- <OutDir>$(OutputPath)</OutDir>\r
- <ReuseCabinetCache>true</ReuseCabinetCache>\r
- <CRTRedist Condition="'$(CRTRedist)' == ''">$(ExternalsDir)\windows-installer\redist-1\$(Platform)</CRTRedist>\r
- <CRTRedist>$([System.IO.Path]::GetFullPath($(CRTRedist)))</CRTRedist>\r
- <TclTkLibraryDir Condition="$(TclTkLibraryDir) == ''">$(tcltkDir)lib</TclTkLibraryDir>\r
- <DocFilename>python$(MajorVersionNumber)$(MinorVersionNumber)$(MicroVersionNumber)$(ReleaseLevelName).chm</DocFilename>\r
-\r
- <InstallerVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(Field3Value).0</InstallerVersion>\r
- </PropertyGroup>\r
- \r
- <PropertyGroup Condition="!$(BuildForRelease)">\r
- <RevisionNumber Condition="'$(RevisionNumber)' == ''">$([System.Math]::Floor($([System.DateTime]::Now.Subtract($([System.DateTime]::new(2001, 1, 1))).TotalDays)))</RevisionNumber>\r
- <PythonVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)dev$(RevisionNumber)</PythonVersion>\r
- <InstallerVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(RevisionNumber).0</InstallerVersion>\r
- </PropertyGroup>\r
- \r
- <PropertyGroup>\r
- <Bitness>32-bit</Bitness>\r
- <Bitness Condition="$(Platform) == 'x64'">64-bit</Bitness>\r
- <Bitness Condition="$(Platform) == 'ARM64'">ARM64</Bitness>\r
- <PlatformArchitecture>32bit</PlatformArchitecture>\r
- <PlatformArchitecture Condition="$(Platform) == 'x64'">64bit</PlatformArchitecture>\r
- <PlatformArchitecture Condition="$(Platform) == 'ARM64'">ARM64</PlatformArchitecture>\r
- <DefineConstants>\r
- $(DefineConstants);\r
- Version=$(InstallerVersion);\r
- ShortVersion=$(MajorVersionNumber).$(MinorVersionNumber);\r
- LongVersion=$(PythonVersion);\r
- MajorVersionNumber=$(MajorVersionNumber);\r
- MinorVersionNumber=$(MinorVersionNumber);\r
- UpgradeMinimumVersion=$(MajorVersionNumber).$(MinorVersionNumber).0.0;\r
- NextMajorVersionNumber=$(MajorVersionNumber).$([msbuild]::Add($(MinorVersionNumber), 1)).0.0;\r
- Bitness=$(Bitness);\r
- PlatformArchitecture=$(PlatformArchitecture);\r
- PyDebugExt=$(PyDebugExt);\r
- PyArchExt=$(PyArchExt);\r
- PyTestExt=$(PyTestExt);\r
- OptionalFeatureName=$(OutputName);\r
- ssltag=$(OpenSSLDLLSuffix);\r
- Suffix32=$(PyArchExt);\r
- </DefineConstants>\r
- <DefineConstants Condition="'$(CRTRedist)' != ''">\r
- $(DefineConstants);CRTRedist=$(CRTRedist);\r
- </DefineConstants>\r
- </PropertyGroup>\r
-\r
- <ItemDefinitionGroup>\r
- <InstallFiles>\r
- <Group>generated_filelist</Group>\r
- <Condition></Condition>\r
- <DiskId></DiskId>\r
- <IncludeInCat>false</IncludeInCat>\r
- </InstallFiles>\r
- <LinkerBindInputPaths>\r
- <Visible>false</Visible>\r
- </LinkerBindInputPaths>\r
- </ItemDefinitionGroup>\r
- <ItemGroup>\r
- <LinkerBindInputPaths Include="$(PGOBuildPath);$(BuildPath)">\r
- <BindName></BindName>\r
- </LinkerBindInputPaths>\r
- <LinkerBindInputPaths Include="$(PySourcePath)">\r
- <BindName>src</BindName>\r
- </LinkerBindInputPaths>\r
- <LinkerBindInputPaths Include="$(TclTkLibraryDir)">\r
- <BindName>tcltk</BindName>\r
- </LinkerBindInputPaths>\r
- <LinkerBindInputPaths Include="$(CRTRedist)">\r
- <BindName>redist</BindName>\r
- </LinkerBindInputPaths>\r
- <LinkerBindInputPaths Include="$(BuildPath32)">\r
- <BindName>build32</BindName>\r
- </LinkerBindInputPaths>\r
- <LinkerBindInputPaths Include="$(BuildPath64)">\r
- <BindName>build64</BindName>\r
- </LinkerBindInputPaths>\r
- <LinkerBindInputPaths Include="$(BuildPathARM64)">\r
- <BindName>buildarm64</BindName>\r
- </LinkerBindInputPaths>\r
- </ItemGroup>\r
-\r
- <Target Name="_ValidateMsiProps" BeforeTargets="PrepareForBuild">\r
- <Error Text="Platform '$(Platform)' is not supported. Use 'x86', 'x64' or 'ARM64'."\r
- Condition="$(Platform) != 'x86' and $(Platform) != 'x64' and $(Platform) != 'ARM64'" />\r
- </Target>\r
- \r
- <ItemGroup>\r
- <_Uuid Include="CoreUpgradeCode">\r
- <Uri>upgradecode</Uri>\r
- </_Uuid>\r
- <_Uuid Include="UpgradeCode">\r
- <Uri>upgradecode/$(OutputName)</Uri>\r
- </_Uuid>\r
- <_Uuid Include="InstallDirectoryGuidSeed">\r
- <Uri>installdirectoryseed</Uri>\r
- </_Uuid>\r
- <_Uuid Include="PythonExeComponentGuid">\r
- <Uri>python.exe</Uri>\r
- </_Uuid>\r
- <_Uuid Include="PythonwExeComponentGuid">\r
- <Uri>pythonw.exe</Uri>\r
- </_Uuid>\r
- <_Uuid Include="RemoveLib2to3PickleComponentGuid">\r
- <Uri>lib2to3/pickles</Uri>\r
- </_Uuid>\r
- <_Uuid Include="CommonPythonRegComponentGuid">\r
- <Uri>registry</Uri>\r
- </_Uuid>\r
- <_Uuid Include="PythonRegComponentGuid">\r
- <Uri>registry/$(OutputName)</Uri>\r
- </_Uuid>\r
- </ItemGroup>\r
- <Target Name="_GenerateGuids"\r
- AfterTargets="PrepareForBuild"\r
- DependsOnTargets="FindPythonForBuild"\r
- Condition="$(TargetName) != 'launcher'">\r
- <PropertyGroup>\r
- <_Uuids>@(_Uuid->'("%(Identity)", "$(MajorVersionNumber).$(MinorVersionNumber)/%(Uri)")',',')</_Uuids>\r
- <_GenerateCommand>import uuid; print('\n'.join('{}={}'.format(i, uuid.uuid5(uuid.UUID('c8d9733e-a70c-43ff-ab0c-e26456f11083'), '$(ReleaseUri.Replace(`{arch}`, `$(ArchName)`))' + j)) for i,j in [$(_Uuids.Replace(`"`,`'`))]))</_GenerateCommand>\r
- </PropertyGroup>\r
- \r
- <Exec Command='$(PythonForBuild) -c "$(_GenerateCommand)" > "$(IntermediateOutputPath)$(OutputName)guids.txt"'\r
- WorkingDirectory="$(MSBuildThisFileDirectory)"\r
- IgnoreExitCode="false" />\r
- \r
- <ReadLinesFromFile File="$(IntermediateOutputPath)$(OutputName)guids.txt">\r
- <Output TaskParameter="Lines" ItemName="_UuidValue" />\r
- </ReadLinesFromFile>\r
- \r
- <PropertyGroup>\r
- <DefineConstants>$(DefineConstants);@(_UuidValue,';');</DefineConstants>\r
- </PropertyGroup>\r
- </Target>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" TreatAsLocalProperty="ReleaseUri">
+ <PropertyGroup>
+ <TargetName>$(OutputName)</TargetName>
+ <DefineSolutionProperties>false</DefineSolutionProperties>
+ <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+ <SuppressIces>$(SuppressIces);ICE03;ICE57;ICE61</SuppressIces>
+ <CompilerSuppressSpecificWarnings>1026</CompilerSuppressSpecificWarnings>
+ <BuildForRelease Condition="'$(BuildForRelease)' == ''">false</BuildForRelease>
+ <SignOutput Condition="'$(SigningCertificate)' != ''">true</SignOutput>
+ <Configuration Condition="'$(Configuration)' == ''">Release</Configuration>
+ <Platform Condition="'$(Platform)' == ''">x86</Platform>
+ <InstallScope Condition="'$(InstallScope)' != 'perMachine'">perUser</InstallScope>
+ <_MakeCatCommand Condition="'$(_MakeCatCommand)' == ''">makecat</_MakeCatCommand>
+ <SkipCopySSLDLL>true</SkipCopySSLDLL>
+ </PropertyGroup>
+
+ <Import Project="wix.props" />
+ <Import Project="..\..\PCbuild\openssl.props" />
+ <Import Project="..\..\PCbuild\tcltk.props" />
+
+ <PropertyGroup>
+ <!--
+ This URI is used to generate the various GUIDs used by the installer.
+ Installers built with the same URI will upgrade each other or block
+ when attempting to downgrade.
+
+ By default, this is the local computer name, which will produce
+ installers that do not interfere with other installers. Products
+ that intend to bundle Python should rebuild these modules with their
+ own URI to avoid conflicting with the official releases.
+
+ The official releases use "https://www.python.org/$(ArchName)"
+
+ This is not the same as the DownloadUrl property used in the bundle
+ projects.
+ -->
+ <ReleaseUri Condition="'$(ReleaseUri)' == ''">$(ComputerName)/$(ArchName)/</ReleaseUri>
+ <ReleaseUri Condition="!$(ReleaseUri.EndsWith(`/`))">$(ReleaseUri)/</ReleaseUri>
+ </PropertyGroup>
+
+
+ <ItemGroup>
+ <Compile Include="$(MSBuildThisFileDirectory)common.wxs" />
+ <WxlTemplate Include="$(MSBuildThisFileDirectory)\*.wxl_template" Condition="$(IgnoreCommonWxlTemplates) != 'true'" />
+ <WixExtension Include="WixUtilExtension">
+ <HintPath>WixUtilExtension</HintPath>
+ <Name>WixUtilExtension</Name>
+ </WixExtension>
+ </ItemGroup>
+
+ <PropertyGroup>
+ <IntermediateOutputPath>$(Py_IntDir)\$(MajorVersionNumber)$(MinorVersionNumber)$(ArchName)_$(Configuration)\msi_$(OutputName)</IntermediateOutputPath>
+ <IntermediateOutputPath Condition="'$(OutputSuffix)' != ''">$(IntermediateOutputPath)_$(OutputSuffix)</IntermediateOutputPath>
+ <OutputPath Condition="'$(OutputPath)' == ''">$(BuildPath)</OutputPath>
+ <OutputPath Condition="!HasTrailingSlash($(OutputPath))">$(OutputPath)\</OutputPath>
+ <OutDir>$(OutputPath)</OutDir>
+ <ReuseCabinetCache>true</ReuseCabinetCache>
+ <CRTRedist Condition="'$(CRTRedist)' == ''">$(ExternalsDir)\windows-installer\redist-1\$(Platform)</CRTRedist>
+ <CRTRedist>$([System.IO.Path]::GetFullPath($(CRTRedist)))</CRTRedist>
+ <TclTkLibraryDir Condition="$(TclTkLibraryDir) == ''">$(tcltkDir)lib</TclTkLibraryDir>
+ <DocFilename>python$(MajorVersionNumber)$(MinorVersionNumber)$(MicroVersionNumber)$(ReleaseLevelName).chm</DocFilename>
+
+ <InstallerVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(Field3Value).0</InstallerVersion>
+ </PropertyGroup>
+
+ <PropertyGroup Condition="!$(BuildForRelease)">
+ <RevisionNumber Condition="'$(RevisionNumber)' == ''">$([System.Math]::Floor($([System.DateTime]::Now.Subtract($([System.DateTime]::new(2001, 1, 1))).TotalDays)))</RevisionNumber>
+ <PythonVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)dev$(RevisionNumber)</PythonVersion>
+ <InstallerVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(RevisionNumber).0</InstallerVersion>
+ </PropertyGroup>
+
+ <PropertyGroup>
+ <Bitness>32-bit</Bitness>
+ <Bitness Condition="$(Platform) == 'x64'">64-bit</Bitness>
+ <Bitness Condition="$(Platform) == 'ARM64'">ARM64</Bitness>
+ <PlatformArchitecture>32bit</PlatformArchitecture>
+ <PlatformArchitecture Condition="$(Platform) == 'x64'">64bit</PlatformArchitecture>
+ <PlatformArchitecture Condition="$(Platform) == 'ARM64'">ARM64</PlatformArchitecture>
+ <DefineConstants>
+ $(DefineConstants);
+ Version=$(InstallerVersion);
+ ShortVersion=$(MajorVersionNumber).$(MinorVersionNumber);
+ LongVersion=$(PythonVersion);
+ MajorVersionNumber=$(MajorVersionNumber);
+ MinorVersionNumber=$(MinorVersionNumber);
+ UpgradeMinimumVersion=$(MajorVersionNumber).$(MinorVersionNumber).0.0;
+ NextMajorVersionNumber=$(MajorVersionNumber).$([msbuild]::Add($(MinorVersionNumber), 1)).0.0;
+ Bitness=$(Bitness);
+ PlatformArchitecture=$(PlatformArchitecture);
+ PyDebugExt=$(PyDebugExt);
+ PyArchExt=$(PyArchExt);
+ PyTestExt=$(PyTestExt);
+ OptionalFeatureName=$(OutputName);
+ ssltag=$(OpenSSLDLLSuffix);
+ Suffix32=$(PyArchExt);
+ </DefineConstants>
+ <DefineConstants Condition="'$(CRTRedist)' != ''">
+ $(DefineConstants);CRTRedist=$(CRTRedist);
+ </DefineConstants>
+ </PropertyGroup>
+
+ <ItemDefinitionGroup>
+ <InstallFiles>
+ <Group>generated_filelist</Group>
+ <Condition></Condition>
+ <DiskId></DiskId>
+ <IncludeInCat>false</IncludeInCat>
+ </InstallFiles>
+ <LinkerBindInputPaths>
+ <Visible>false</Visible>
+ </LinkerBindInputPaths>
+ </ItemDefinitionGroup>
+ <ItemGroup>
+ <LinkerBindInputPaths Include="$(PGOBuildPath);$(BuildPath)">
+ <BindName></BindName>
+ </LinkerBindInputPaths>
+ <LinkerBindInputPaths Include="$(PySourcePath)">
+ <BindName>src</BindName>
+ </LinkerBindInputPaths>
+ <LinkerBindInputPaths Include="$(TclTkLibraryDir)">
+ <BindName>tcltk</BindName>
+ </LinkerBindInputPaths>
+ <LinkerBindInputPaths Include="$(CRTRedist)">
+ <BindName>redist</BindName>
+ </LinkerBindInputPaths>
+ <LinkerBindInputPaths Include="$(BuildPath32)">
+ <BindName>build32</BindName>
+ </LinkerBindInputPaths>
+ <LinkerBindInputPaths Include="$(BuildPath64)">
+ <BindName>build64</BindName>
+ </LinkerBindInputPaths>
+ <LinkerBindInputPaths Include="$(BuildPathARM64)">
+ <BindName>buildarm64</BindName>
+ </LinkerBindInputPaths>
+ </ItemGroup>
+
+ <Target Name="_ValidateMsiProps" BeforeTargets="PrepareForBuild">
+ <Error Text="Platform '$(Platform)' is not supported. Use 'x86', 'x64' or 'ARM64'."
+ Condition="$(Platform) != 'x86' and $(Platform) != 'x64' and $(Platform) != 'ARM64'" />
+ </Target>
+
+ <ItemGroup>
+ <_Uuid Include="CoreUpgradeCode">
+ <Uri>upgradecode</Uri>
+ </_Uuid>
+ <_Uuid Include="UpgradeCode">
+ <Uri>upgradecode/$(OutputName)</Uri>
+ </_Uuid>
+ <_Uuid Include="InstallDirectoryGuidSeed">
+ <Uri>installdirectoryseed</Uri>
+ </_Uuid>
+ <_Uuid Include="PythonExeComponentGuid">
+ <Uri>python.exe</Uri>
+ </_Uuid>
+ <_Uuid Include="PythonwExeComponentGuid">
+ <Uri>pythonw.exe</Uri>
+ </_Uuid>
+ <_Uuid Include="RemoveLib2to3PickleComponentGuid">
+ <Uri>lib2to3/pickles</Uri>
+ </_Uuid>
+ <_Uuid Include="CommonPythonRegComponentGuid">
+ <Uri>registry</Uri>
+ </_Uuid>
+ <_Uuid Include="PythonRegComponentGuid">
+ <Uri>registry/$(OutputName)</Uri>
+ </_Uuid>
+ </ItemGroup>
+ <Target Name="_GenerateGuids"
+ AfterTargets="PrepareForBuild"
+ DependsOnTargets="FindPythonForBuild"
+ Condition="$(TargetName) != 'launcher'">
+ <PropertyGroup>
+ <_Uuids>@(_Uuid->'("%(Identity)", "$(MajorVersionNumber).$(MinorVersionNumber)/%(Uri)")',',')</_Uuids>
+ <_GenerateCommand>import uuid; print('\n'.join('{}={}'.format(i, uuid.uuid5(uuid.UUID('c8d9733e-a70c-43ff-ab0c-e26456f11083'), '$(ReleaseUri.Replace(`{arch}`, `$(ArchName)`))' + j)) for i,j in [$(_Uuids.Replace(`"`,`'`))]))</_GenerateCommand>
+ </PropertyGroup>
+
+ <Exec Command='$(PythonForBuild) -c "$(_GenerateCommand)" > "$(IntermediateOutputPath)$(OutputName)guids.txt"'
+ WorkingDirectory="$(MSBuildThisFileDirectory)"
+ IgnoreExitCode="false" />
+
+ <ReadLinesFromFile File="$(IntermediateOutputPath)$(OutputName)guids.txt">
+ <Output TaskParameter="Lines" ItemName="_UuidValue" />
+ </ReadLinesFromFile>
+
+ <PropertyGroup>
+ <DefineConstants>$(DefineConstants);@(_UuidValue,';');</DefineConstants>
+ </PropertyGroup>
+ </Target>
</Project>
\ No newline at end of file
-<#\r
-.Synopsis\r
- Recursively signs the contents of a directory.\r
-.Description\r
- Given the file patterns, code signs the contents.\r
-.Parameter root\r
- The root directory to sign.\r
-.Parameter patterns\r
- The file patterns to sign\r
-.Parameter description\r
- The description to add to the signature (optional).\r
-.Parameter certname\r
- The name of the certificate to sign with (optional).\r
-.Parameter certsha1\r
- The SHA1 hash of the certificate to sign with (optional).\r
-#>\r
-param(\r
- [Parameter(Mandatory=$true)][string]$root,\r
- [string[]]$patterns=@("*.exe", "*.dll", "*.pyd", "*.cat"),\r
- [string]$description,\r
- [string]$certname,\r
- [string]$certsha1,\r
- [string]$certfile\r
-)\r
-\r
-$tools = $script:MyInvocation.MyCommand.Path | Split-Path -parent;\r
-Import-Module $tools\sdktools.psm1 -WarningAction SilentlyContinue -Force\r
-\r
-pushd $root\r
-try {\r
- Sign-File -certname $certname -certsha1 $certsha1 -certfile $certfile -description $description -files (gci -r $patterns)\r
-} finally {\r
- popd\r
+<#
+.Synopsis
+ Recursively signs the contents of a directory.
+.Description
+ Given the file patterns, code signs the contents.
+.Parameter root
+ The root directory to sign.
+.Parameter patterns
+ The file patterns to sign
+.Parameter description
+ The description to add to the signature (optional).
+.Parameter certname
+ The name of the certificate to sign with (optional).
+.Parameter certsha1
+ The SHA1 hash of the certificate to sign with (optional).
+#>
+param(
+ [Parameter(Mandatory=$true)][string]$root,
+ [string[]]$patterns=@("*.exe", "*.dll", "*.pyd", "*.cat"),
+ [string]$description,
+ [string]$certname,
+ [string]$certsha1,
+ [string]$certfile
+)
+
+$tools = $script:MyInvocation.MyCommand.Path | Split-Path -parent;
+Import-Module $tools\sdktools.psm1 -WarningAction SilentlyContinue -Force
+
+pushd $root
+try {
+ Sign-File -certname $certname -certsha1 $certsha1 -certfile $certfile -description $description -files (gci -r $patterns)
+} finally {
+ popd
}
\ No newline at end of file
-@setlocal enableextensions\r
-@echo off\r
-\r
-set D=%~dp0\r
-set PCBUILD=%D%..\..\PCbuild\\r
-\r
-set TARGETDIR=%TEMP%\r
-set TESTX86=\r
-set TESTX64=\r
-set TESTALLUSER=\r
-set TESTPERUSER=\r
-\r
-:CheckOpts\r
-if "%1" EQU "-h" goto Help\r
-if "%1" EQU "-x86" (set TESTX86=1) && shift && goto CheckOpts\r
-if "%1" EQU "-x64" (set TESTX64=1) && shift && goto CheckOpts\r
-if "%1" EQU "-t" (set TARGETDIR=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "--target" (set TARGETDIR=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "-a" (set TESTALLUSER=1) && shift && goto CheckOpts\r
-if "%1" EQU "--alluser" (set TESTALLUSER=1) && shift && goto CheckOpts\r
-if "%1" EQU "-p" (set TESTPERUSER=1) && shift && goto CheckOpts\r
-if "%1" EQU "--peruser" (set TESTPERUSER=1) && shift && goto CheckOpts\r
-\r
-if not defined TESTX86 if not defined TESTX64 (set TESTX86=1) && (set TESTX64=1)\r
-if not defined TESTALLUSER if not defined TESTPERUSER (set TESTALLUSER=1) && (set TESTPERUSER=1)\r
-\r
-\r
-if defined TESTX86 (\r
- for %%f in ("%PCBUILD%win32\en-us\*.exe") do (\r
- if defined TESTALLUSER call :test "%%~ff" "%TARGETDIR%\%%~nf-alluser" "InstallAllUsers=1 CompileAll=1"\r
- if errorlevel 1 exit /B\r
- if defined TESTPERUSER call :test "%%~ff" "%TARGETDIR%\%%~nf-peruser" "InstallAllUsers=0 CompileAll=0"\r
- if errorlevel 1 exit /B\r
- )\r
-)\r
-\r
-if defined TESTX64 (\r
- for %%f in ("%PCBUILD%amd64\en-us\*.exe") do (\r
- if defined TESTALLUSER call :test "%%~ff" "%TARGETDIR%\%%~nf-alluser" "InstallAllUsers=1 CompileAll=1"\r
- if errorlevel 1 exit /B\r
- if defined TESTPERUSER call :test "%%~ff" "%TARGETDIR%\%%~nf-peruser" "InstallAllUsers=0 CompileAll=0"\r
- if errorlevel 1 exit /B\r
- )\r
-)\r
-\r
-exit /B 0\r
-\r
-:test\r
-@setlocal\r
-@echo on\r
-\r
-@if not exist "%~1" exit /B 1\r
-\r
-@set EXE=%~1\r
-@if not "%EXE:embed=%"=="%EXE%" exit /B 0\r
-\r
-@set EXITCODE=0\r
-@echo Installing %1 into %2\r
-"%~1" /passive /log "%~2\install\log.txt" TargetDir="%~2\Python" Include_debug=1 Include_symbols=1 %~3\r
-\r
-@if not errorlevel 1 (\r
- @echo Printing version\r
- "%~2\Python\python.exe" -c "import sys; print(sys.version)" > "%~2\version.txt" 2>&1\r
-)\r
-\r
-@if not errorlevel 1 (\r
- @echo Capturing Start Menu\r
- @dir /s/b "%PROGRAMDATA%\Microsoft\Windows\Start Menu\Programs" | findstr /ic:"python" > "%~2\startmenu.txt" 2>&1\r
- @dir /s/b "%APPDATA%\Microsoft\Windows\Start Menu\Programs" | findstr /ic:"python" >> "%~2\startmenu.txt" 2>&1\r
-\r
- @echo Capturing registry\r
- @for /F "usebackq" %%f in (`reg query HKCR /s /f python /k`) do @(\r
- echo %%f >> "%~2\hkcr.txt"\r
- reg query "%%f" /s >> "%~2\hkcr.txt" 2>&1\r
- )\r
- @reg query HKCU\Software\Python /s > "%~2\hkcu.txt" 2>&1\r
- @reg query HKLM\Software\Python /reg:32 /s > "%~2\hklm.txt" 2>&1\r
- @reg query HKLM\Software\Python /reg:64 /s >> "%~2\hklm.txt" 2>&1\r
- cmd /k exit 0\r
-)\r
-\r
-@if not errorlevel 1 (\r
- @echo Installing package\r
- "%~2\Python\python.exe" -m pip install "azure<0.10" > "%~2\pip.txt" 2>&1\r
- @if not errorlevel 1 (\r
- "%~2\Python\python.exe" -m pip uninstall -y azure python-dateutil six >> "%~2\pip.txt" 2>&1\r
- )\r
-)\r
-@if not errorlevel 1 (\r
- @echo Testing Tcl/tk\r
- @set TCL_LIBRARY=%~2\Python\tcl\tcl8.6\r
- "%~2\Python\python.exe" -m test -uall -v test_ttk_guionly test_tk test_idle > "%~2\tcltk.txt" 2>&1\r
- @set TCL_LIBRARY=\r
-)\r
-\r
-@set EXITCODE=%ERRORLEVEL%\r
-\r
-@echo Result was %EXITCODE%\r
-@echo Removing %1\r
-"%~1" /passive /uninstall /log "%~2\uninstall\log.txt"\r
-\r
-@echo off\r
-exit /B %EXITCODE%\r
-\r
-:Help\r
-echo testrelease.bat [--target TARGET] [-x86] [-x64] [--alluser] [--peruser] [-h]\r
-echo.\r
-echo --target (-t) Specify the target directory for installs and logs\r
-echo -x86 Run tests for x86 installers\r
-echo -x64 Run tests for x64 installers\r
-echo --alluser (-a) Run tests for all-user installs (requires Administrator)\r
-echo --peruser (-p) Run tests for per-user installs\r
-echo -h Display this help information\r
-echo.\r
-echo If no test architecture is specified, all architectures will be tested.\r
-echo If no install type is selected, all install types will be tested.\r
-echo.\r
+@setlocal enableextensions
+@echo off
+
+set D=%~dp0
+set PCBUILD=%D%..\..\PCbuild\
+
+set TARGETDIR=%TEMP%
+set TESTX86=
+set TESTX64=
+set TESTALLUSER=
+set TESTPERUSER=
+
+:CheckOpts
+if "%1" EQU "-h" goto Help
+if "%1" EQU "-x86" (set TESTX86=1) && shift && goto CheckOpts
+if "%1" EQU "-x64" (set TESTX64=1) && shift && goto CheckOpts
+if "%1" EQU "-t" (set TARGETDIR=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--target" (set TARGETDIR=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "-a" (set TESTALLUSER=1) && shift && goto CheckOpts
+if "%1" EQU "--alluser" (set TESTALLUSER=1) && shift && goto CheckOpts
+if "%1" EQU "-p" (set TESTPERUSER=1) && shift && goto CheckOpts
+if "%1" EQU "--peruser" (set TESTPERUSER=1) && shift && goto CheckOpts
+
+if not defined TESTX86 if not defined TESTX64 (set TESTX86=1) && (set TESTX64=1)
+if not defined TESTALLUSER if not defined TESTPERUSER (set TESTALLUSER=1) && (set TESTPERUSER=1)
+
+
+if defined TESTX86 (
+ for %%f in ("%PCBUILD%win32\en-us\*.exe") do (
+ if defined TESTALLUSER call :test "%%~ff" "%TARGETDIR%\%%~nf-alluser" "InstallAllUsers=1 CompileAll=1"
+ if errorlevel 1 exit /B
+ if defined TESTPERUSER call :test "%%~ff" "%TARGETDIR%\%%~nf-peruser" "InstallAllUsers=0 CompileAll=0"
+ if errorlevel 1 exit /B
+ )
+)
+
+if defined TESTX64 (
+ for %%f in ("%PCBUILD%amd64\en-us\*.exe") do (
+ if defined TESTALLUSER call :test "%%~ff" "%TARGETDIR%\%%~nf-alluser" "InstallAllUsers=1 CompileAll=1"
+ if errorlevel 1 exit /B
+ if defined TESTPERUSER call :test "%%~ff" "%TARGETDIR%\%%~nf-peruser" "InstallAllUsers=0 CompileAll=0"
+ if errorlevel 1 exit /B
+ )
+)
+
+exit /B 0
+
+:test
+@setlocal
+@echo on
+
+@if not exist "%~1" exit /B 1
+
+@set EXE=%~1
+@if not "%EXE:embed=%"=="%EXE%" exit /B 0
+
+@set EXITCODE=0
+@echo Installing %1 into %2
+"%~1" /passive /log "%~2\install\log.txt" TargetDir="%~2\Python" Include_debug=1 Include_symbols=1 %~3
+
+@if not errorlevel 1 (
+ @echo Printing version
+ "%~2\Python\python.exe" -c "import sys; print(sys.version)" > "%~2\version.txt" 2>&1
+)
+
+@if not errorlevel 1 (
+ @echo Capturing Start Menu
+ @dir /s/b "%PROGRAMDATA%\Microsoft\Windows\Start Menu\Programs" | findstr /ic:"python" > "%~2\startmenu.txt" 2>&1
+ @dir /s/b "%APPDATA%\Microsoft\Windows\Start Menu\Programs" | findstr /ic:"python" >> "%~2\startmenu.txt" 2>&1
+
+ @echo Capturing registry
+ @for /F "usebackq" %%f in (`reg query HKCR /s /f python /k`) do @(
+ echo %%f >> "%~2\hkcr.txt"
+ reg query "%%f" /s >> "%~2\hkcr.txt" 2>&1
+ )
+ @reg query HKCU\Software\Python /s > "%~2\hkcu.txt" 2>&1
+ @reg query HKLM\Software\Python /reg:32 /s > "%~2\hklm.txt" 2>&1
+ @reg query HKLM\Software\Python /reg:64 /s >> "%~2\hklm.txt" 2>&1
+ cmd /k exit 0
+)
+
+@if not errorlevel 1 (
+ @echo Installing package
+ "%~2\Python\python.exe" -m pip install "azure<0.10" > "%~2\pip.txt" 2>&1
+ @if not errorlevel 1 (
+ "%~2\Python\python.exe" -m pip uninstall -y azure python-dateutil six >> "%~2\pip.txt" 2>&1
+ )
+)
+@if not errorlevel 1 (
+ @echo Testing Tcl/tk
+ @set TCL_LIBRARY=%~2\Python\tcl\tcl8.6
+ "%~2\Python\python.exe" -m test -uall -v test_ttk_guionly test_tk test_idle > "%~2\tcltk.txt" 2>&1
+ @set TCL_LIBRARY=
+)
+
+@set EXITCODE=%ERRORLEVEL%
+
+@echo Result was %EXITCODE%
+@echo Removing %1
+"%~1" /passive /uninstall /log "%~2\uninstall\log.txt"
+
+@echo off
+exit /B %EXITCODE%
+
+:Help
+echo testrelease.bat [--target TARGET] [-x86] [-x64] [--alluser] [--peruser] [-h]
+echo.
+echo --target (-t) Specify the target directory for installs and logs
+echo -x86 Run tests for x86 installers
+echo -x64 Run tests for x64 installers
+echo --alluser (-a) Run tests for all-user installs (requires Administrator)
+echo --peruser (-p) Run tests for per-user installs
+echo -h Display this help information
+echo.
+echo If no test architecture is specified, all architectures will be tested.
+echo If no install type is selected, all install types will be tested.
+echo.
-@setlocal\r
-@echo off\r
-\r
-set D=%~dp0\r
-set PCBUILD=%D%..\..\PCbuild\\r
-\r
-set HOST=\r
-set USER=\r
-set TARGET=\r
-set DRYRUN=false\r
-set NOUPLOAD=\r
-set NOGPG=\r
-set NOPURGE=\r
-set NOTEST=\r
-\r
-:CheckOpts\r
-if "%1" EQU "-h" goto Help\r
-if "%1" EQU "-o" (set HOST=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "--host" (set HOST=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "-u" (set USER=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "--user" (set USER=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "-t" (set TARGET=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "--target" (set TARGET=%~2) && shift && shift && goto CheckOpts\r
-if "%1" EQU "--dry-run" (set DRYRUN=true) && shift && goto CheckOpts\r
-if "%1" EQU "--skip-upload" (set NOUPLOAD=true) && shift && goto CheckOpts\r
-if "%1" EQU "--skip-gpg" (set NOGPG=true) && shift && goto CheckOpts\r
-if "%1" EQU "--skip-purge" (set NOPURGE=true) && shift && goto CheckOpts\r
-if "%1" EQU "--skip-test" (set NOTEST=true) && shift && goto CheckOpts\r
-if "%1" EQU "-T" (set NOTEST=true) && shift && goto CheckOpts\r
-if "%1" NEQ "" echo Unexpected argument "%1" & exit /B 1\r
-\r
-if not defined PLINK where plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"\r
-if not defined PLINK where /R "%ProgramFiles(x86)%\PuTTY" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"\r
-if not defined PLINK where /R "%ProgramFiles%\PuTTY" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"\r
-if not defined PLINK where /R "%ProgramFiles(x86)%" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"\r
-if not defined PLINK where /R "%ProgramFiles%" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"\r
-if not defined PLINK echo Cannot locate plink.exe & exit /B 1\r
-echo Found plink.exe at %PLINK%\r
-\r
-if not defined PSCP where pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"\r
-if not defined PSCP where /R "%ProgramFiles(x86)%\PuTTY" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"\r
-if not defined PSCP where /R "%ProgramFiles%\PuTTY" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"\r
-if not defined PSCP where /R "%ProgramFiles(x86)%" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"\r
-if not defined PSCP where /R "%ProgramFiles%" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"\r
-if not defined PSCP echo Cannot locate pscp.exe & exit /B 1\r
-echo Found pscp.exe at %PSCP%\r
-\r
-if defined NOGPG (\r
- set GPG=\r
- echo Skipping GPG signature generation because of --skip-gpg\r
-) else (\r
- if not defined GPG where gpg2 > "%TEMP%\gpg.loc" 2> nul && set /P GPG= < "%TEMP%\gpg.loc" & del "%TEMP%\gpg.loc"\r
- if not defined GPG where /R "%PCBUILD%..\externals\windows-installer" gpg2 > "%TEMP%\gpg.loc" 2> nul && set /P GPG= < "%TEMP%\gpg.loc" & del "%TEMP%\gpg.loc"\r
- if not defined GPG echo Cannot locate gpg2.exe. Signatures will not be uploaded & pause\r
- echo Found gpg2.exe at %GPG%\r
-)\r
-\r
-call "%PCBUILD%find_msbuild.bat" %MSBUILD%\r
-if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)\r
-pushd "%D%"\r
-if not defined NOUPLOAD (\r
- %MSBUILD% /v:m /nologo uploadrelease.proj /t:Upload /p:Platform=x86\r
- if errorlevel 1 goto :failed\r
- %MSBUILD% /v:m /nologo uploadrelease.proj /t:Upload /p:Platform=x64 /p:IncludeDoc=false\r
- if errorlevel 1 goto :failed\r
-)\r
-if not defined NOPURGE (\r
- %MSBUILD% /v:m /nologo uploadrelease.proj /t:Purge\r
-)\r
-if not defined NOTEST (\r
- call :test x86\r
- if errorlevel 1 goto :failed\r
- call :test x64\r
- if errorlevel 1 goto :failed\r
-)\r
-%MSBUILD% /v:m /nologo uploadrelease.proj /t:ShowHashes /p:Platform=x86\r
-if errorlevel 1 goto :failed\r
-%MSBUILD% /v:m /nologo uploadrelease.proj /t:ShowHashes /p:Platform=x64 /p:IncludeDoc=false\r
-if errorlevel 1 goto :failed\r
-\r
-popd\r
-exit /B 0\r
-\r
-:test\r
-%MSBUILD% /v:m /nologo uploadrelease.proj /t:Test /p:Platform=%1\r
-if errorlevel 1 (\r
- echo Test failed - purging and retrying\r
- %MSBUILD% /v:m /nologo uploadrelease.proj /t:Purge\r
- if errorlevel 1 exit /B\r
- %MSBUILD% /v:m /nologo uploadrelease.proj /t:Test /p:Platform=%1\r
-)\r
-exit /B\r
-\r
-:failed\r
-popd\r
-exit /B\r
-\r
-:Help\r
-echo uploadrelease.bat --host HOST --user USERNAME [--target TARGET] [--dry-run] [-h]\r
-echo.\r
-echo --host (-o) Specify the upload host (required)\r
-echo --user (-u) Specify the user on the host (required)\r
-echo --target (-t) Specify the target directory on the host\r
-echo --dry-run Display commands and filenames without executing them\r
-echo --skip-gpg Does not generate GPG signatures before uploading\r
-echo --skip-purge Does not perform CDN purge after uploading\r
-echo --skip-test (-T) Does not perform post-upload tests\r
-echo -h Display this help information\r
-echo.\r
+@setlocal
+@echo off
+
+set D=%~dp0
+set PCBUILD=%D%..\..\PCbuild\
+
+set HOST=
+set USER=
+set TARGET=
+set DRYRUN=false
+set NOUPLOAD=
+set NOGPG=
+set NOPURGE=
+set NOTEST=
+
+:CheckOpts
+if "%1" EQU "-h" goto Help
+if "%1" EQU "-o" (set HOST=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--host" (set HOST=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "-u" (set USER=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--user" (set USER=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "-t" (set TARGET=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--target" (set TARGET=%~2) && shift && shift && goto CheckOpts
+if "%1" EQU "--dry-run" (set DRYRUN=true) && shift && goto CheckOpts
+if "%1" EQU "--skip-upload" (set NOUPLOAD=true) && shift && goto CheckOpts
+if "%1" EQU "--skip-gpg" (set NOGPG=true) && shift && goto CheckOpts
+if "%1" EQU "--skip-purge" (set NOPURGE=true) && shift && goto CheckOpts
+if "%1" EQU "--skip-test" (set NOTEST=true) && shift && goto CheckOpts
+if "%1" EQU "-T" (set NOTEST=true) && shift && goto CheckOpts
+if "%1" NEQ "" echo Unexpected argument "%1" & exit /B 1
+
+if not defined PLINK where plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"
+if not defined PLINK where /R "%ProgramFiles(x86)%\PuTTY" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"
+if not defined PLINK where /R "%ProgramFiles%\PuTTY" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"
+if not defined PLINK where /R "%ProgramFiles(x86)%" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"
+if not defined PLINK where /R "%ProgramFiles%" plink > "%TEMP%\plink.loc" 2> nul && set /P PLINK= < "%TEMP%\plink.loc" & del "%TEMP%\plink.loc"
+if not defined PLINK echo Cannot locate plink.exe & exit /B 1
+echo Found plink.exe at %PLINK%
+
+if not defined PSCP where pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"
+if not defined PSCP where /R "%ProgramFiles(x86)%\PuTTY" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"
+if not defined PSCP where /R "%ProgramFiles%\PuTTY" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"
+if not defined PSCP where /R "%ProgramFiles(x86)%" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"
+if not defined PSCP where /R "%ProgramFiles%" pscp > "%TEMP%\pscp.loc" 2> nul && set /P pscp= < "%TEMP%\pscp.loc" & del "%TEMP%\pscp.loc"
+if not defined PSCP echo Cannot locate pscp.exe & exit /B 1
+echo Found pscp.exe at %PSCP%
+
+if defined NOGPG (
+ set GPG=
+ echo Skipping GPG signature generation because of --skip-gpg
+) else (
+ if not defined GPG where gpg2 > "%TEMP%\gpg.loc" 2> nul && set /P GPG= < "%TEMP%\gpg.loc" & del "%TEMP%\gpg.loc"
+ if not defined GPG where /R "%PCBUILD%..\externals\windows-installer" gpg2 > "%TEMP%\gpg.loc" 2> nul && set /P GPG= < "%TEMP%\gpg.loc" & del "%TEMP%\gpg.loc"
+ if not defined GPG echo Cannot locate gpg2.exe. Signatures will not be uploaded & pause
+ echo Found gpg2.exe at %GPG%
+)
+
+call "%PCBUILD%find_msbuild.bat" %MSBUILD%
+if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)
+pushd "%D%"
+if not defined NOUPLOAD (
+ %MSBUILD% /v:m /nologo uploadrelease.proj /t:Upload /p:Platform=x86
+ if errorlevel 1 goto :failed
+ %MSBUILD% /v:m /nologo uploadrelease.proj /t:Upload /p:Platform=x64 /p:IncludeDoc=false
+ if errorlevel 1 goto :failed
+)
+if not defined NOPURGE (
+ %MSBUILD% /v:m /nologo uploadrelease.proj /t:Purge
+)
+if not defined NOTEST (
+ call :test x86
+ if errorlevel 1 goto :failed
+ call :test x64
+ if errorlevel 1 goto :failed
+)
+%MSBUILD% /v:m /nologo uploadrelease.proj /t:ShowHashes /p:Platform=x86
+if errorlevel 1 goto :failed
+%MSBUILD% /v:m /nologo uploadrelease.proj /t:ShowHashes /p:Platform=x64 /p:IncludeDoc=false
+if errorlevel 1 goto :failed
+
+popd
+exit /B 0
+
+:test
+%MSBUILD% /v:m /nologo uploadrelease.proj /t:Test /p:Platform=%1
+if errorlevel 1 (
+ echo Test failed - purging and retrying
+ %MSBUILD% /v:m /nologo uploadrelease.proj /t:Purge
+ if errorlevel 1 exit /B
+ %MSBUILD% /v:m /nologo uploadrelease.proj /t:Test /p:Platform=%1
+)
+exit /B
+
+:failed
+popd
+exit /B
+
+:Help
+echo uploadrelease.bat --host HOST --user USERNAME [--target TARGET] [--dry-run] [-h]
+echo.
+echo --host (-o) Specify the upload host (required)
+echo --user (-u) Specify the user on the host (required)
+echo --target (-t) Specify the target directory on the host
+echo --dry-run Display commands and filenames without executing them
+echo --skip-gpg Does not generate GPG signatures before uploading
+echo --skip-purge Does not perform CDN purge after uploading
+echo --skip-test (-T) Does not perform post-upload tests
+echo -h Display this help information
+echo.
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <PropertyGroup>\r
- <ProjectGuid>{2D69F2AB-D5D0-4344-84B5-EF6DB34A9BC9}</ProjectGuid>\r
- <OutputName>python</OutputName>\r
- <OutputSuffix></OutputSuffix>\r
- \r
- <DownloadUrlBase Condition="'$(DownloadUrlBase)' == ''">$(TARGET)</DownloadUrlBase>\r
- <DownloadUrlBase Condition="'$(DownloadUrlBase)' == ''">/srv/www.python.org/ftp/python</DownloadUrlBase>\r
- <IncludeDoc Condition="'$(IncludeDoc)' == ''">true</IncludeDoc>\r
- <BuildForRelease Condition="'$(BuildForRelease)' == ''">true</BuildForRelease>\r
- <DryRun Condition="'$(DryRun)' == ''">false</DryRun>\r
- </PropertyGroup>\r
-\r
- <Import Project="msi.props" />\r
- <Import Project="bundle\bundle.targets" />\r
- \r
- <PropertyGroup>\r
- <EXETarget>$(DownloadUrlBase.TrimEnd(`/`))/$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)</EXETarget>\r
- <MSITarget>$(DownloadUrl.Replace(`{version}`, `$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)`).Replace(`{arch}`, `$(ArchName)`).Replace(`{releasename}`, `$(ReleaseLevelName)`).Replace(`{msi}`, ``).TrimEnd(`/`))</MSITarget>\r
- </PropertyGroup>\r
- \r
- <ItemGroup>\r
- <File Include="$(OutputPath)\*.msi">\r
- <CopyTo>$(MSITarget)</CopyTo>\r
- </File>\r
- <File Include="$(OutputPath)\*.exe;$(OutputPath)\*.zip">\r
- <CopyTo>$(EXETarget)</CopyTo>\r
- </File>\r
- <File Include="$(PySourcePath)Doc\build\htmlhelp\python$(MajorVersionNumber)$(MinorVersionNumber)$(MicroVersionNumber)$(ReleaseLevelName).chm" Condition="$(IncludeDoc)">\r
- <CopyTo>$(EXETarget)</CopyTo>\r
- </File>\r
- </ItemGroup>\r
- \r
- <Target Name="_ValidateProperties">\r
- <Error Text="No value for Host provided" Condition="'$(Host)' == ''" />\r
- <Error Text="No value for User provided" Condition="'$(User)' == ''" />\r
- <Error Text="No path for PSCP provided" Condition="'$(PSCP)' == ''" />\r
- <Error Text="No path for PLINK provided" Condition="'$(PLINK)' == ''" />\r
- </Target>\r
- \r
- <Target Name="_RunGpg" Condition="'$(GPG)' != ''" Inputs="@(File)" Outputs="$(IntermediateOutputPath)\gpg\%(FileName)%(Extension).asc">\r
- <MakeDir Directories="$(IntermediateOutputPath)gpg" />\r
- <Delete Files="$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc" Condition="Exists('$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc')" />\r
- <Exec Command=""$(GPG)" -ba -o "$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc" "%(File.FullPath)""\r
- IgnoreExitCode="false" />\r
- <ItemGroup>\r
- <File Include="$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc">\r
- <CopyTo>%(File.CopyTo)</CopyTo>\r
- </File>\r
- </ItemGroup>\r
- </Target>\r
- \r
- <Target Name="_Upload" Condition="!$(DryRun)">\r
- <Exec Command=""$(PLINK)" $(User)@$(Host) mkdir %(File.CopyTo) ^&^& chgrp downloads %(File.CopyTo) ^&^& chmod g-w,o+rx %(File.CopyTo)" ContinueOnError="true" />\r
- <Exec Command=""$(PSCP)" @(File,' ') $(User)@$(Host):%(File.CopyTo)" />\r
- <Exec Command=""$(PLINK)" $(User)@$(Host) chgrp downloads %(File.CopyTo)/*; chmod g-w,o+r %(File.CopyTo)/*" ContinueOnError="true" />\r
- </Target>\r
-\r
- <Target Name="_PrintNames" Condition="$(DryRun)">\r
- <Exec Command="echo "$(PLINK)" $(User)@$(Host) mkdir %(File.CopyTo) ^&^& chgrp downloads %(File.CopyTo) ^&^& chmod g-w,o+rx %(File.CopyTo)" />\r
- <Exec Command="echo "$(PSCP)" @(File,' ') $(User)@$(Host):%(File.CopyTo)" />\r
- <Exec Command="echo "$(PLINK)" $(User)@$(Host) chgrp downloads %(File.CopyTo)/*; chmod g-w,o+r %(File.CopyTo)/*" />\r
- </Target>\r
- \r
- <Target Name="_TestLayout">\r
- <ItemGroup>\r
- <WebInstaller Include="$(OutputPath)\*-webinstall.exe" />\r
- <WebInstaller>\r
- <SourceDir>$(TEMP)\%(Filename)_source</SourceDir>\r
- <SourceExe>$(TEMP)\%(Filename)_source\%(Filename)%(Extension)</SourceExe>\r
- <LayoutDir>$(TEMP)\%(Filename)_layout</LayoutDir>\r
- <LogDir>$(OutputPath)\%(Filename)_layoutlog</LogDir>\r
- <LogFile>$(OutputPath)\%(Filename)_layoutlog\%(Filename).log</LogFile>\r
- </WebInstaller>\r
- </ItemGroup>\r
- <Error Text="Could not find installer" Condition="@(WebInstaller) == ''" />\r
- <RemoveDir Directories="%(WebInstaller.SourceDir)" Condition="Exists('%(WebInstaller.SourceDir)')" />\r
- <RemoveDir Directories="%(WebInstaller.LayoutDir)" Condition="Exists('%(WebInstaller.LayoutDir)')" />\r
- <RemoveDir Directories="%(WebInstaller.LogDir)" Condition="Exists('%(WebInstaller.LogDir)')" />\r
- <MakeDir Directories="%(WebInstaller.SourceDir)" />\r
- <Copy SourceFiles="@(WebInstaller)" DestinationFiles="%(WebInstaller.SourceExe)" />\r
- <Exec Command="start "Install test" /wait "%(WebInstaller.SourceExe)" /layout "%(WebInstaller.LayoutDir)" /passive /log "%(WebInstaller.LogFile)""\r
- IgnoreExitCode="false" />\r
- <RemoveDir Directories="%(WebInstaller.LayoutDir)" />\r
- <RemoveDir Directories="%(WebInstaller.SourceDir)" />\r
- <RemoveDir Directories="%(WebInstaller.LogDir)" />\r
- <Message Text="Successfully downloaded %(WebInstaller.Filename)%(WebInstaller.Extension) layout" Importance="high" />\r
- </Target>\r
- \r
- <Target Name="Upload" DependsOnTargets="_ValidateProperties;_RunGpg;_PrintNames;_Upload" />\r
- <Target Name="Test" DependsOnTargets="_TestLayout" />\r
- \r
- <Target Name="Purge">\r
- <Error Condition="!Exists('$(PythonExe)')" Text="No Python executable available at $(PythonExe)" />\r
- <Exec Command="echo "$(PythonExe)" purge.py $(PythonVersion)" Condition="$(DryRun)" />\r
- <Exec Command=""$(PythonExe)" purge.py $(PythonVersion)" Condition="!$(DryRun)" />\r
- <Message Text="Purged uploaded files" Importance="high" />\r
- </Target>\r
- \r
- <Target Name="ShowHashes">\r
- <ItemGroup>\r
- <UserFiles Include="@(File)" Condition="'%(File.CopyTo)' == '$(EXETarget)'" />\r
- </ItemGroup>\r
- \r
- <Error Text="No files generated" Condition="@(UserFiles) == ''" />\r
- <Exec Command=""$(PythonExe)" generate_md5.py @(UserFiles->'"%(FullPath)"',' ')" />\r
- </Target>\r
- \r
- <Target Name="Build">\r
- <Error Text="This script should be invoked using uploadrelease.bat." />\r
- </Target>\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <PropertyGroup>
+ <ProjectGuid>{2D69F2AB-D5D0-4344-84B5-EF6DB34A9BC9}</ProjectGuid>
+ <OutputName>python</OutputName>
+ <OutputSuffix></OutputSuffix>
+
+ <DownloadUrlBase Condition="'$(DownloadUrlBase)' == ''">$(TARGET)</DownloadUrlBase>
+ <DownloadUrlBase Condition="'$(DownloadUrlBase)' == ''">/srv/www.python.org/ftp/python</DownloadUrlBase>
+ <IncludeDoc Condition="'$(IncludeDoc)' == ''">true</IncludeDoc>
+ <BuildForRelease Condition="'$(BuildForRelease)' == ''">true</BuildForRelease>
+ <DryRun Condition="'$(DryRun)' == ''">false</DryRun>
+ </PropertyGroup>
+
+ <Import Project="msi.props" />
+ <Import Project="bundle\bundle.targets" />
+
+ <PropertyGroup>
+ <EXETarget>$(DownloadUrlBase.TrimEnd(`/`))/$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)</EXETarget>
+ <MSITarget>$(DownloadUrl.Replace(`{version}`, `$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)`).Replace(`{arch}`, `$(ArchName)`).Replace(`{releasename}`, `$(ReleaseLevelName)`).Replace(`{msi}`, ``).TrimEnd(`/`))</MSITarget>
+ </PropertyGroup>
+
+ <ItemGroup>
+ <File Include="$(OutputPath)\*.msi">
+ <CopyTo>$(MSITarget)</CopyTo>
+ </File>
+ <File Include="$(OutputPath)\*.exe;$(OutputPath)\*.zip">
+ <CopyTo>$(EXETarget)</CopyTo>
+ </File>
+ <File Include="$(PySourcePath)Doc\build\htmlhelp\python$(MajorVersionNumber)$(MinorVersionNumber)$(MicroVersionNumber)$(ReleaseLevelName).chm" Condition="$(IncludeDoc)">
+ <CopyTo>$(EXETarget)</CopyTo>
+ </File>
+ </ItemGroup>
+
+ <Target Name="_ValidateProperties">
+ <Error Text="No value for Host provided" Condition="'$(Host)' == ''" />
+ <Error Text="No value for User provided" Condition="'$(User)' == ''" />
+ <Error Text="No path for PSCP provided" Condition="'$(PSCP)' == ''" />
+ <Error Text="No path for PLINK provided" Condition="'$(PLINK)' == ''" />
+ </Target>
+
+ <Target Name="_RunGpg" Condition="'$(GPG)' != ''" Inputs="@(File)" Outputs="$(IntermediateOutputPath)\gpg\%(FileName)%(Extension).asc">
+ <MakeDir Directories="$(IntermediateOutputPath)gpg" />
+ <Delete Files="$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc" Condition="Exists('$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc')" />
+ <Exec Command=""$(GPG)" -ba -o "$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc" "%(File.FullPath)""
+ IgnoreExitCode="false" />
+ <ItemGroup>
+ <File Include="$(IntermediateOutputPath)\gpg\%(File.FileName)%(File.Extension).asc">
+ <CopyTo>%(File.CopyTo)</CopyTo>
+ </File>
+ </ItemGroup>
+ </Target>
+
+ <Target Name="_Upload" Condition="!$(DryRun)">
+ <Exec Command=""$(PLINK)" $(User)@$(Host) mkdir %(File.CopyTo) ^&^& chgrp downloads %(File.CopyTo) ^&^& chmod g-w,o+rx %(File.CopyTo)" ContinueOnError="true" />
+ <Exec Command=""$(PSCP)" @(File,' ') $(User)@$(Host):%(File.CopyTo)" />
+ <Exec Command=""$(PLINK)" $(User)@$(Host) chgrp downloads %(File.CopyTo)/*; chmod g-w,o+r %(File.CopyTo)/*" ContinueOnError="true" />
+ </Target>
+
+ <Target Name="_PrintNames" Condition="$(DryRun)">
+ <Exec Command="echo "$(PLINK)" $(User)@$(Host) mkdir %(File.CopyTo) ^&^& chgrp downloads %(File.CopyTo) ^&^& chmod g-w,o+rx %(File.CopyTo)" />
+ <Exec Command="echo "$(PSCP)" @(File,' ') $(User)@$(Host):%(File.CopyTo)" />
+ <Exec Command="echo "$(PLINK)" $(User)@$(Host) chgrp downloads %(File.CopyTo)/*; chmod g-w,o+r %(File.CopyTo)/*" />
+ </Target>
+
+ <Target Name="_TestLayout">
+ <ItemGroup>
+ <WebInstaller Include="$(OutputPath)\*-webinstall.exe" />
+ <WebInstaller>
+ <SourceDir>$(TEMP)\%(Filename)_source</SourceDir>
+ <SourceExe>$(TEMP)\%(Filename)_source\%(Filename)%(Extension)</SourceExe>
+ <LayoutDir>$(TEMP)\%(Filename)_layout</LayoutDir>
+ <LogDir>$(OutputPath)\%(Filename)_layoutlog</LogDir>
+ <LogFile>$(OutputPath)\%(Filename)_layoutlog\%(Filename).log</LogFile>
+ </WebInstaller>
+ </ItemGroup>
+ <Error Text="Could not find installer" Condition="@(WebInstaller) == ''" />
+ <RemoveDir Directories="%(WebInstaller.SourceDir)" Condition="Exists('%(WebInstaller.SourceDir)')" />
+ <RemoveDir Directories="%(WebInstaller.LayoutDir)" Condition="Exists('%(WebInstaller.LayoutDir)')" />
+ <RemoveDir Directories="%(WebInstaller.LogDir)" Condition="Exists('%(WebInstaller.LogDir)')" />
+ <MakeDir Directories="%(WebInstaller.SourceDir)" />
+ <Copy SourceFiles="@(WebInstaller)" DestinationFiles="%(WebInstaller.SourceExe)" />
+ <Exec Command="start "Install test" /wait "%(WebInstaller.SourceExe)" /layout "%(WebInstaller.LayoutDir)" /passive /log "%(WebInstaller.LogFile)""
+ IgnoreExitCode="false" />
+ <RemoveDir Directories="%(WebInstaller.LayoutDir)" />
+ <RemoveDir Directories="%(WebInstaller.SourceDir)" />
+ <RemoveDir Directories="%(WebInstaller.LogDir)" />
+ <Message Text="Successfully downloaded %(WebInstaller.Filename)%(WebInstaller.Extension) layout" Importance="high" />
+ </Target>
+
+ <Target Name="Upload" DependsOnTargets="_ValidateProperties;_RunGpg;_PrintNames;_Upload" />
+ <Target Name="Test" DependsOnTargets="_TestLayout" />
+
+ <Target Name="Purge">
+ <Error Condition="!Exists('$(PythonExe)')" Text="No Python executable available at $(PythonExe)" />
+ <Exec Command="echo "$(PythonExe)" purge.py $(PythonVersion)" Condition="$(DryRun)" />
+ <Exec Command=""$(PythonExe)" purge.py $(PythonVersion)" Condition="!$(DryRun)" />
+ <Message Text="Purged uploaded files" Importance="high" />
+ </Target>
+
+ <Target Name="ShowHashes">
+ <ItemGroup>
+ <UserFiles Include="@(File)" Condition="'%(File.CopyTo)' == '$(EXETarget)'" />
+ </ItemGroup>
+
+ <Error Text="No files generated" Condition="@(UserFiles) == ''" />
+ <Exec Command=""$(PythonExe)" generate_md5.py @(UserFiles->'"%(FullPath)"',' ')" />
+ </Target>
+
+ <Target Name="Build">
+ <Error Text="This script should be invoked using uploadrelease.bat." />
+ </Target>
+</Project>
-<#\r
-.Synopsis\r
- Uploads from a VSTS release build layout to python.org\r
-.Description\r
- Given the downloaded/extracted build artifact from a release\r
- build run on python.visualstudio.com, this script uploads\r
- the files to the correct locations.\r
-.Parameter build\r
- The location on disk of the extracted build artifact.\r
-.Parameter user\r
- The username to use when logging into the host.\r
-.Parameter server\r
- The host or PuTTY session name.\r
-.Parameter target\r
- The subdirectory on the host to copy files to.\r
-.Parameter tests\r
- The path to run download tests in.\r
-.Parameter doc_htmlhelp\r
- Optional path besides -build to locate CHM files.\r
-.Parameter embed\r
- Optional path besides -build to locate ZIP files.\r
-.Parameter skipupload\r
- Skip uploading\r
-.Parameter skippurge\r
- Skip purging the CDN\r
-.Parameter skiptest\r
- Skip the download tests\r
-.Parameter skiphash\r
- Skip displaying hashes\r
-#>\r
-param(\r
- [Parameter(Mandatory=$true)][string]$build,\r
- [Parameter(Mandatory=$true)][string]$user,\r
- [string]$server="python-downloads",\r
- [string]$target="/srv/www.python.org/ftp/python",\r
- [string]$tests=${env:TEMP},\r
- [string]$doc_htmlhelp=$null,\r
- [string]$embed=$null,\r
- [switch]$skipupload,\r
- [switch]$skippurge,\r
- [switch]$skiptest,\r
- [switch]$skiphash\r
-)\r
-\r
-if (-not $build) { throw "-build option is required" }\r
-if (-not $user) { throw "-user option is required" }\r
-\r
-$tools = $script:MyInvocation.MyCommand.Path | Split-Path -parent;\r
-\r
-if (-not ((Test-Path "$build\win32\python-*.exe") -or (Test-Path "$build\amd64\python-*.exe"))) {\r
- throw "-build argument does not look like a 'build' directory"\r
-}\r
-\r
-function find-putty-tool {\r
- param ([string]$n)\r
- $t = gcm $n -EA 0\r
- if (-not $t) { $t = gcm ".\$n" -EA 0 }\r
- if (-not $t) { $t = gcm "${env:ProgramFiles}\PuTTY\$n" -EA 0 }\r
- if (-not $t) { $t = gcm "${env:ProgramFiles(x86)}\PuTTY\$n" -EA 0 }\r
- if (-not $t) { throw "Unable to locate $n.exe. Please put it on $PATH" }\r
- return gi $t.Path\r
-}\r
-\r
-$p = gci -r "$build\python-*.exe" | `\r
- ?{ $_.Name -match '^python-(\d+\.\d+\.\d+)((a|b|rc)\d+)?-.+' } | `\r
- select -first 1 | `\r
- %{ $Matches[1], $Matches[2] }\r
-\r
-"Uploading version $($p[0]) $($p[1])"\r
-" from: $build"\r
-" to: $($server):$target/$($p[0])"\r
-""\r
-\r
-if (-not $skipupload) {\r
- # Upload files to the server\r
- $pscp = find-putty-tool "pscp"\r
- $plink = find-putty-tool "plink"\r
-\r
- "Upload using $pscp and $plink"\r
- ""\r
-\r
- if ($doc_htmlhelp) {\r
- $chm = gci -EA 0 $doc_htmlhelp\python*.chm, $doc_htmlhelp\python*.chm.asc\r
- } else {\r
- $chm = gci -EA 0 $build\python*.chm, $build\python*.chm.asc\r
- }\r
-\r
- $d = "$target/$($p[0])/"\r
- & $plink -batch $user@$server mkdir $d\r
- & $plink -batch $user@$server chgrp downloads $d\r
- & $plink -batch $user@$server chmod o+rx $d\r
- if ($chm) {\r
- & $pscp -batch $chm.FullName "$user@${server}:$d"\r
- if (-not $?) { throw "Failed to upload $chm" }\r
- }\r
-\r
- $dirs = gci "$build" -Directory\r
- if ($embed) {\r
- $dirs = ($dirs, (gi $embed)) | %{ $_ }\r
- }\r
-\r
- foreach ($a in $dirs) {\r
- "Uploading files from $($a.FullName)"\r
- pushd "$($a.FullName)"\r
- $exe = gci *.exe, *.exe.asc, *.zip, *.zip.asc\r
- $msi = gci *.msi, *.msi.asc, *.msu, *.msu.asc\r
- popd\r
-\r
- if ($exe) {\r
- & $pscp -batch $exe.FullName "$user@${server}:$d"\r
- if (-not $?) { throw "Failed to upload $exe" }\r
- }\r
-\r
- if ($msi) {\r
- $sd = "$d$($a.Name)$($p[1])/"\r
- & $plink -batch $user@$server mkdir $sd\r
- & $plink -batch $user@$server chgrp downloads $sd\r
- & $plink -batch $user@$server chmod o+rx $sd\r
- & $pscp -batch $msi.FullName "$user@${server}:$sd"\r
- if (-not $?) { throw "Failed to upload $msi" }\r
- & $plink -batch $user@$server chgrp downloads $sd*\r
- & $plink -batch $user@$server chmod g-x,o+r $sd*\r
- }\r
- }\r
-\r
- & $plink -batch $user@$server chgrp downloads $d*\r
- & $plink -batch $user@$server chmod g-x,o+r $d*\r
- & $pscp -ls "$user@${server}:$d"\r
-}\r
-\r
-if (-not $skippurge) {\r
- # Run a CDN purge\r
- py $tools\purge.py "$($p[0])$($p[1])"\r
-}\r
-\r
-if (-not $skiptest) {\r
- # Use each web installer to produce a layout. This will download\r
- # each referenced file and validate their signatures/hashes.\r
- gci "$build\*-webinstall.exe" -r -File | %{\r
- $d = mkdir "$tests\$($_.BaseName)" -Force\r
- gci $d -r -File | del\r
- $ic = copy $_ $d -PassThru\r
- "Checking layout for $($ic.Name)"\r
- Start-Process -wait $ic "/passive", "/layout", "$d\layout", "/log", "$d\log\install.log"\r
- if (-not $?) {\r
- Write-Error "Failed to validate layout of $($inst.Name)"\r
- }\r
- }\r
-}\r
-\r
-if (-not $skiphash) {\r
- # Display MD5 hash and size of each downloadable file\r
- pushd $build\r
- $files = gci python*.chm, *\*.exe, *\*.zip\r
- if ($doc_htmlhelp) {\r
- cd $doc_htmlhelp\r
- $files = ($files, (gci python*.chm)) | %{ $_ }\r
- }\r
- if ($embed) {\r
- cd $embed\r
- $files = ($files, (gci *.zip)) | %{ $_ }\r
- }\r
- popd\r
-\r
- $hashes = $files | `\r
- Sort-Object Name | `\r
- Format-Table Name, @{Label="MD5"; Expression={(Get-FileHash $_ -Algorithm MD5).Hash}}, Length -AutoSize | `\r
- Out-String -Width 4096\r
- $hashes | clip\r
- $hashes\r
-}\r
+<#
+.Synopsis
+ Uploads from a VSTS release build layout to python.org
+.Description
+ Given the downloaded/extracted build artifact from a release
+ build run on python.visualstudio.com, this script uploads
+ the files to the correct locations.
+.Parameter build
+ The location on disk of the extracted build artifact.
+.Parameter user
+ The username to use when logging into the host.
+.Parameter server
+ The host or PuTTY session name.
+.Parameter target
+ The subdirectory on the host to copy files to.
+.Parameter tests
+ The path to run download tests in.
+.Parameter doc_htmlhelp
+ Optional path besides -build to locate CHM files.
+.Parameter embed
+ Optional path besides -build to locate ZIP files.
+.Parameter skipupload
+ Skip uploading
+.Parameter skippurge
+ Skip purging the CDN
+.Parameter skiptest
+ Skip the download tests
+.Parameter skiphash
+ Skip displaying hashes
+#>
+param(
+ [Parameter(Mandatory=$true)][string]$build,
+ [Parameter(Mandatory=$true)][string]$user,
+ [string]$server="python-downloads",
+ [string]$target="/srv/www.python.org/ftp/python",
+ [string]$tests=${env:TEMP},
+ [string]$doc_htmlhelp=$null,
+ [string]$embed=$null,
+ [switch]$skipupload,
+ [switch]$skippurge,
+ [switch]$skiptest,
+ [switch]$skiphash
+)
+
+if (-not $build) { throw "-build option is required" }
+if (-not $user) { throw "-user option is required" }
+
+$tools = $script:MyInvocation.MyCommand.Path | Split-Path -parent;
+
+if (-not ((Test-Path "$build\win32\python-*.exe") -or (Test-Path "$build\amd64\python-*.exe"))) {
+ throw "-build argument does not look like a 'build' directory"
+}
+
+function find-putty-tool {
+ param ([string]$n)
+ $t = gcm $n -EA 0
+ if (-not $t) { $t = gcm ".\$n" -EA 0 }
+ if (-not $t) { $t = gcm "${env:ProgramFiles}\PuTTY\$n" -EA 0 }
+ if (-not $t) { $t = gcm "${env:ProgramFiles(x86)}\PuTTY\$n" -EA 0 }
+ if (-not $t) { throw "Unable to locate $n.exe. Please put it on $PATH" }
+ return gi $t.Path
+}
+
+$p = gci -r "$build\python-*.exe" | `
+ ?{ $_.Name -match '^python-(\d+\.\d+\.\d+)((a|b|rc)\d+)?-.+' } | `
+ select -first 1 | `
+ %{ $Matches[1], $Matches[2] }
+
+"Uploading version $($p[0]) $($p[1])"
+" from: $build"
+" to: $($server):$target/$($p[0])"
+""
+
+if (-not $skipupload) {
+ # Upload files to the server
+ $pscp = find-putty-tool "pscp"
+ $plink = find-putty-tool "plink"
+
+ "Upload using $pscp and $plink"
+ ""
+
+ if ($doc_htmlhelp) {
+ $chm = gci -EA 0 $doc_htmlhelp\python*.chm, $doc_htmlhelp\python*.chm.asc
+ } else {
+ $chm = gci -EA 0 $build\python*.chm, $build\python*.chm.asc
+ }
+
+ $d = "$target/$($p[0])/"
+ & $plink -batch $user@$server mkdir $d
+ & $plink -batch $user@$server chgrp downloads $d
+ & $plink -batch $user@$server chmod o+rx $d
+ if ($chm) {
+ & $pscp -batch $chm.FullName "$user@${server}:$d"
+ if (-not $?) { throw "Failed to upload $chm" }
+ }
+
+ $dirs = gci "$build" -Directory
+ if ($embed) {
+ $dirs = ($dirs, (gi $embed)) | %{ $_ }
+ }
+
+ foreach ($a in $dirs) {
+ "Uploading files from $($a.FullName)"
+ pushd "$($a.FullName)"
+ $exe = gci *.exe, *.exe.asc, *.zip, *.zip.asc
+ $msi = gci *.msi, *.msi.asc, *.msu, *.msu.asc
+ popd
+
+ if ($exe) {
+ & $pscp -batch $exe.FullName "$user@${server}:$d"
+ if (-not $?) { throw "Failed to upload $exe" }
+ }
+
+ if ($msi) {
+ $sd = "$d$($a.Name)$($p[1])/"
+ & $plink -batch $user@$server mkdir $sd
+ & $plink -batch $user@$server chgrp downloads $sd
+ & $plink -batch $user@$server chmod o+rx $sd
+ & $pscp -batch $msi.FullName "$user@${server}:$sd"
+ if (-not $?) { throw "Failed to upload $msi" }
+ & $plink -batch $user@$server chgrp downloads $sd*
+ & $plink -batch $user@$server chmod g-x,o+r $sd*
+ }
+ }
+
+ & $plink -batch $user@$server chgrp downloads $d*
+ & $plink -batch $user@$server chmod g-x,o+r $d*
+ & $pscp -ls "$user@${server}:$d"
+}
+
+if (-not $skippurge) {
+ # Run a CDN purge
+ py $tools\purge.py "$($p[0])$($p[1])"
+}
+
+if (-not $skiptest) {
+ # Use each web installer to produce a layout. This will download
+ # each referenced file and validate their signatures/hashes.
+ gci "$build\*-webinstall.exe" -r -File | %{
+ $d = mkdir "$tests\$($_.BaseName)" -Force
+ gci $d -r -File | del
+ $ic = copy $_ $d -PassThru
+ "Checking layout for $($ic.Name)"
+ Start-Process -wait $ic "/passive", "/layout", "$d\layout", "/log", "$d\log\install.log"
+ if (-not $?) {
+ Write-Error "Failed to validate layout of $($inst.Name)"
+ }
+ }
+}
+
+if (-not $skiphash) {
+ # Display MD5 hash and size of each downloadable file
+ pushd $build
+ $files = gci python*.chm, *\*.exe, *\*.zip
+ if ($doc_htmlhelp) {
+ cd $doc_htmlhelp
+ $files = ($files, (gci python*.chm)) | %{ $_ }
+ }
+ if ($embed) {
+ cd $embed
+ $files = ($files, (gci *.zip)) | %{ $_ }
+ }
+ popd
+
+ $hashes = $files | `
+ Sort-Object Name | `
+ Format-Table Name, @{Label="MD5"; Expression={(Get-FileHash $_ -Algorithm MD5).Hash}}, Length -AutoSize | `
+ Out-String -Width 4096
+ $hashes | clip
+ $hashes
+}
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <Import Project="..\..\PCbuild\python.props" />\r
- \r
- <PropertyGroup>\r
- <WixInstallPath Condition="'$(WixInstallPath)' == '' and Exists('$(MSBuildThisFileDirectory)\Wix')">$(MSBuildThisFileDirectory)\Wix\</WixInstallPath>\r
- <WixInstallPath Condition="'$(WixInstallPath)' == '' and Exists('$(ExternalsDir)\windows-installer\wix-314')">$(ExternalsDir)\windows-installer\wix-314\</WixInstallPath>\r
- <WixInstallPath Condition="'$(WixInstallPath)' == ''">$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Installer XML\3.10@InstallRoot)</WixInstallPath>\r
- <WixInstallPath Condition="'$(WixInstallPath)' == ''">$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Installer XML\3.10@InstallRoot)</WixInstallPath>\r
- <WixTargetsPath>$(WixInstallPath)\Wix.targets</WixTargetsPath>\r
- </PropertyGroup>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <Import Project="..\..\PCbuild\python.props" />
+
+ <PropertyGroup>
+ <WixInstallPath Condition="'$(WixInstallPath)' == '' and Exists('$(MSBuildThisFileDirectory)\Wix')">$(MSBuildThisFileDirectory)\Wix\</WixInstallPath>
+ <WixInstallPath Condition="'$(WixInstallPath)' == '' and Exists('$(ExternalsDir)\windows-installer\wix-314')">$(ExternalsDir)\windows-installer\wix-314\</WixInstallPath>
+ <WixInstallPath Condition="'$(WixInstallPath)' == ''">$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Installer XML\3.10@InstallRoot)</WixInstallPath>
+ <WixInstallPath Condition="'$(WixInstallPath)' == ''">$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Installer XML\3.10@InstallRoot)</WixInstallPath>
+ <WixTargetsPath>$(WixInstallPath)\Wix.targets</WixTargetsPath>
+ </PropertyGroup>
</Project>
\ No newline at end of file
-@echo off\r
-setlocal\r
-set D=%~dp0\r
-set PCBUILD=%D%..\..\PCbuild\\r
-if "%Py_OutDir%"=="" set Py_OutDir=%PCBUILD%\r
-\r
-set BUILDX86=\r
-set BUILDX64=\r
-set BUILDARM32=\r
-set REBUILD=\r
-set OUTPUT=\r
-set PACKAGES=\r
-set PYTHON_EXE=\r
-\r
-:CheckOpts\r
-if "%~1" EQU "-h" goto Help\r
-if "%~1" EQU "-x86" (set BUILDX86=1) && shift && goto CheckOpts\r
-if "%~1" EQU "-x64" (set BUILDX64=1) && shift && goto CheckOpts\r
-if "%~1" EQU "-arm32" (set BUILDARM32=1) && shift && goto CheckOpts\r
-if "%~1" EQU "-r" (set REBUILD=-r) && shift && goto CheckOpts\r
-if "%~1" EQU "-o" (set OUTPUT="/p:OutputPath=%~2") && shift && shift && goto CheckOpts\r
-if "%~1" EQU "--out" (set OUTPUT="/p:OutputPath=%~2") && shift && shift && goto CheckOpts\r
-if "%~1" EQU "-p" (set PACKAGES=%PACKAGES% %~2) && shift && shift && goto CheckOpts\r
-if "%~1" EQU "--python-exe" (set PYTHON_EXE="/p:PythonExe=%~2") && shift && shift && goto CheckOpts\r
-\r
-if not defined BUILDX86 if not defined BUILDX64 if not defined BUILDARM32 (set BUILDX86=1) && (set BUILDX64=1) && (set BUILDARM32=1)\r
-\r
-call "%D%..\msi\get_externals.bat"\r
-call "%PCBUILD%find_msbuild.bat" %MSBUILD%\r
-if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)\r
-\r
-if defined PACKAGES set PACKAGES="/p:Packages=%PACKAGES%"\r
-\r
-if defined BUILDX86 (\r
- if defined REBUILD ( call "%PCBUILD%build.bat" -e -r\r
- ) else if not exist "%Py_OutDir%win32\python.exe" call "%PCBUILD%build.bat" -e\r
- if errorlevel 1 goto :eof\r
-\r
- %MSBUILD% "%D%make_pkg.proj" /p:Configuration=Release /p:Platform=x86 %OUTPUT% %PACKAGES% %PYTHON_EXE%\r
- if errorlevel 1 goto :eof\r
-)\r
-\r
-if defined BUILDX64 (\r
- if defined REBUILD ( call "%PCBUILD%build.bat" -p x64 -e -r\r
- ) else if not exist "%Py_OutDir%amd64\python.exe" call "%PCBUILD%build.bat" -p x64 -e\r
- if errorlevel 1 goto :eof\r
-\r
- %MSBUILD% "%D%make_pkg.proj" /p:Configuration=Release /p:Platform=x64 %OUTPUT% %PACKAGES% %PYTHON_EXE%\r
- if errorlevel 1 goto :eof\r
-)\r
-\r
-if defined BUILDARM32 (\r
- if defined REBUILD ( call "%PCBUILD%build.bat" -p ARM -e -r --no-tkinter\r
- ) else if not exist "%Py_OutDir%arm32\python.exe" call "%PCBUILD%build.bat" -p ARM -e --no-tkinter\r
- if errorlevel 1 goto :eof\r
-\r
- %MSBUILD% "%D%make_pkg.proj" /p:Configuration=Release /p:Platform=ARM %OUTPUT% %PACKAGES% %PYTHON_EXE%\r
- if errorlevel 1 goto :eof\r
-)\r
-\r
-exit /B 0\r
-\r
-:Help\r
-echo build.bat [-x86] [-x64] [--out DIR] [-r] [-h]\r
-echo.\r
-echo -x86 Build x86 installers\r
-echo -x64 Build x64 installers\r
-echo -r Rebuild rather than incremental build\r
-echo --out [DIR] Override output directory\r
-echo -h Show usage\r
+@echo off
+setlocal
+set D=%~dp0
+set PCBUILD=%D%..\..\PCbuild\
+if "%Py_OutDir%"=="" set Py_OutDir=%PCBUILD%
+
+set BUILDX86=
+set BUILDX64=
+set BUILDARM32=
+set REBUILD=
+set OUTPUT=
+set PACKAGES=
+set PYTHON_EXE=
+
+:CheckOpts
+if "%~1" EQU "-h" goto Help
+if "%~1" EQU "-x86" (set BUILDX86=1) && shift && goto CheckOpts
+if "%~1" EQU "-x64" (set BUILDX64=1) && shift && goto CheckOpts
+if "%~1" EQU "-arm32" (set BUILDARM32=1) && shift && goto CheckOpts
+if "%~1" EQU "-r" (set REBUILD=-r) && shift && goto CheckOpts
+if "%~1" EQU "-o" (set OUTPUT="/p:OutputPath=%~2") && shift && shift && goto CheckOpts
+if "%~1" EQU "--out" (set OUTPUT="/p:OutputPath=%~2") && shift && shift && goto CheckOpts
+if "%~1" EQU "-p" (set PACKAGES=%PACKAGES% %~2) && shift && shift && goto CheckOpts
+if "%~1" EQU "--python-exe" (set PYTHON_EXE="/p:PythonExe=%~2") && shift && shift && goto CheckOpts
+
+if not defined BUILDX86 if not defined BUILDX64 if not defined BUILDARM32 (set BUILDX86=1) && (set BUILDX64=1) && (set BUILDARM32=1)
+
+call "%D%..\msi\get_externals.bat"
+call "%PCBUILD%find_msbuild.bat" %MSBUILD%
+if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)
+
+if defined PACKAGES set PACKAGES="/p:Packages=%PACKAGES%"
+
+if defined BUILDX86 (
+ if defined REBUILD ( call "%PCBUILD%build.bat" -e -r
+ ) else if not exist "%Py_OutDir%win32\python.exe" call "%PCBUILD%build.bat" -e
+ if errorlevel 1 goto :eof
+
+ %MSBUILD% "%D%make_pkg.proj" /p:Configuration=Release /p:Platform=x86 %OUTPUT% %PACKAGES% %PYTHON_EXE%
+ if errorlevel 1 goto :eof
+)
+
+if defined BUILDX64 (
+ if defined REBUILD ( call "%PCBUILD%build.bat" -p x64 -e -r
+ ) else if not exist "%Py_OutDir%amd64\python.exe" call "%PCBUILD%build.bat" -p x64 -e
+ if errorlevel 1 goto :eof
+
+ %MSBUILD% "%D%make_pkg.proj" /p:Configuration=Release /p:Platform=x64 %OUTPUT% %PACKAGES% %PYTHON_EXE%
+ if errorlevel 1 goto :eof
+)
+
+if defined BUILDARM32 (
+ if defined REBUILD ( call "%PCBUILD%build.bat" -p ARM -e -r --no-tkinter
+ ) else if not exist "%Py_OutDir%arm32\python.exe" call "%PCBUILD%build.bat" -p ARM -e --no-tkinter
+ if errorlevel 1 goto :eof
+
+ %MSBUILD% "%D%make_pkg.proj" /p:Configuration=Release /p:Platform=ARM %OUTPUT% %PACKAGES% %PYTHON_EXE%
+ if errorlevel 1 goto :eof
+)
+
+exit /B 0
+
+:Help
+echo build.bat [-x86] [-x64] [--out DIR] [-r] [-h]
+echo.
+echo -x86 Build x86 installers
+echo -x64 Build x64 installers
+echo -r Rebuild rather than incremental build
+echo --out [DIR] Override output directory
+echo -h Show usage
-<?xml version="1.0" encoding="utf-8"?>\r
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">\r
- <PropertyGroup>\r
- <ProjectGuid>{10487945-15D1-4092-A214-338395C4116B}</ProjectGuid>\r
- <OutputName>python</OutputName>\r
- <OutputName Condition="$(Platform) == 'x86'">$(OutputName)x86</OutputName>\r
- <OutputName Condition="$(Platform) == 'ARM'">$(OutputName)arm32</OutputName>\r
- <OutputName Condition="$(BuildForDaily) == 'true'">$(OutputName)daily</OutputName>\r
- <OutputSuffix></OutputSuffix>\r
- <SupportSigning>false</SupportSigning>\r
- <BuildForRelease Condition="$(BuildForRelease) == ''">true</BuildForRelease>\r
- </PropertyGroup>\r
-\r
- <Import Project="..\msi\msi.props" />\r
-\r
- <PropertyGroup>\r
- <Nuget Condition="$(Nuget) == ''">$(ExternalsDir)\windows-installer\nuget\nuget.exe</Nuget>\r
- <NuspecVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)</NuspecVersion>\r
- <NuspecVersion Condition="$(ReleaseLevelName) != ''">$(NuspecVersion)-$(ReleaseLevelName)</NuspecVersion>\r
- <NuspecVersion Condition="$(BuildForDaily) == 'true'">$(MajorVersionNumber).$(MinorVersionNumber).$(DailyBuildVersion)</NuspecVersion>\r
- <SignOutput>false</SignOutput>\r
- <TargetName>$(OutputName).$(NuspecVersion)</TargetName>\r
- <TargetExt>.nupkg</TargetExt>\r
- <IntermediateOutputPath>$(IntermediateOutputPath)\nuget_$(ArchName)\</IntermediateOutputPath>\r
- \r
- <CleanCommand>rmdir /q/s "$(IntermediateOutputPath.TrimEnd(`\`))"</CleanCommand>\r
- \r
- <PythonArguments>"$(PythonExe)" "$(PySourcePath)PC\layout"</PythonArguments>\r
- <PythonArguments>$(PythonArguments) -b "$(BuildPath.TrimEnd(`\`))" -s "$(PySourcePath.TrimEnd(`\`))"</PythonArguments>\r
- <PythonArguments>$(PythonArguments) -t "$(IntermediateOutputPath)obj"</PythonArguments>\r
- <PythonArguments>$(PythonArguments) --copy "$(IntermediateOutputPath)pkg"</PythonArguments>\r
- <PythonArguments>$(PythonArguments) --preset-nuget</PythonArguments>\r
- \r
- <PackageArguments Condition="$(Packages) != ''">"$(IntermediateOutputPath)pkg\pip.exe" -B -m pip install -U $(Packages)</PackageArguments>\r
- \r
- <NugetPackCommand>"$(Nuget)" pack "$(IntermediateOutputPath)pkg\python.nuspec" -BasePath "$(IntermediateOutputPath)pkg"</NugetPackCommand>\r
- <NugetPackSymbolsCommand Condition="Exists('$(MSBuildThisFileDirectory)\$(OutputName).symbols.nuspec')">"$(Nuget)" pack "$(MSBuildThisFileDirectory)\$(OutputName).symbols.nuspec" -BasePath "$(BuildPath.TrimEnd(`\`))"</NugetPackSymbolsCommand>\r
- <NugetArguments>$(NugetArguments) -OutputDirectory "$(OutputPath.Trim(`\`))"</NugetArguments>\r
- <NugetArguments>$(NugetArguments) -Version "$(NuspecVersion)"</NugetArguments>\r
- <NugetArguments>$(NugetArguments) -NoPackageAnalysis -NonInteractive</NugetArguments>\r
- \r
- <Environment>$(Environment)%0D%0Aset PYTHONPATH=$(PySourcePath)Lib</Environment>\r
- <Environment>$(Environment)%0D%0Aset PYTHON_NUSPEC_VERSION=$(NuspecVersion)</Environment>\r
- <Environment Condition="$(Platform) != 'x86'">$(Environment)%0D%0Aset PYTHON_PROPS_PLATFORM=$(Platform)</Environment>\r
- <Environment Condition="$(Platform) == 'x86'">$(Environment)%0D%0Aset PYTHON_PROPS_PLATFORM=Win32</Environment>\r
- <Environment>$(Environment)%0D%0Amkdir "$(OutputPath.Trim(`\`))" >nul 2>nul</Environment>\r
- </PropertyGroup>\r
-\r
- <Target Name="_NugetMissing" BeforeTargets="_Build" Condition="!Exists($(Nuget))">\r
- <Error Text="$(Nuget) could not be found. Either avoid specifying the property or update your externals/windows-installer files." />\r
- </Target>\r
-\r
- <Target Name="_Build">\r
- <Exec Command="$(CleanCommand)" />\r
- <Exec Command="setlocal%0D%0A$(Environment)%0D%0A$(PythonArguments)%0D%0A$(PackageArguments)" />\r
-\r
- <Exec Command="$(NugetPackCommand) $(NugetArguments)" />\r
- <Exec Command="$(NugetPackSymbolsCommand) $(NugetArguments)" Condition="$(NugetPackSymbolsCommand) != ''" />\r
- </Target>\r
-\r
- <Target Name="AfterBuild" />\r
- <Target Name="Build" DependsOnTargets="_Build;AfterBuild" />\r
-</Project>\r
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <PropertyGroup>
+ <ProjectGuid>{10487945-15D1-4092-A214-338395C4116B}</ProjectGuid>
+ <OutputName>python</OutputName>
+ <OutputName Condition="$(Platform) == 'x86'">$(OutputName)x86</OutputName>
+ <OutputName Condition="$(Platform) == 'ARM'">$(OutputName)arm32</OutputName>
+ <OutputName Condition="$(BuildForDaily) == 'true'">$(OutputName)daily</OutputName>
+ <OutputSuffix></OutputSuffix>
+ <SupportSigning>false</SupportSigning>
+ <BuildForRelease Condition="$(BuildForRelease) == ''">true</BuildForRelease>
+ </PropertyGroup>
+
+ <Import Project="..\msi\msi.props" />
+
+ <PropertyGroup>
+ <Nuget Condition="$(Nuget) == ''">$(ExternalsDir)\windows-installer\nuget\nuget.exe</Nuget>
+ <NuspecVersion>$(MajorVersionNumber).$(MinorVersionNumber).$(MicroVersionNumber)</NuspecVersion>
+ <NuspecVersion Condition="$(ReleaseLevelName) != ''">$(NuspecVersion)-$(ReleaseLevelName)</NuspecVersion>
+ <NuspecVersion Condition="$(BuildForDaily) == 'true'">$(MajorVersionNumber).$(MinorVersionNumber).$(DailyBuildVersion)</NuspecVersion>
+ <SignOutput>false</SignOutput>
+ <TargetName>$(OutputName).$(NuspecVersion)</TargetName>
+ <TargetExt>.nupkg</TargetExt>
+ <IntermediateOutputPath>$(IntermediateOutputPath)\nuget_$(ArchName)\</IntermediateOutputPath>
+
+ <CleanCommand>rmdir /q/s "$(IntermediateOutputPath.TrimEnd(`\`))"</CleanCommand>
+
+ <PythonArguments>"$(PythonExe)" "$(PySourcePath)PC\layout"</PythonArguments>
+ <PythonArguments>$(PythonArguments) -b "$(BuildPath.TrimEnd(`\`))" -s "$(PySourcePath.TrimEnd(`\`))"</PythonArguments>
+ <PythonArguments>$(PythonArguments) -t "$(IntermediateOutputPath)obj"</PythonArguments>
+ <PythonArguments>$(PythonArguments) --copy "$(IntermediateOutputPath)pkg"</PythonArguments>
+ <PythonArguments>$(PythonArguments) --preset-nuget</PythonArguments>
+
+ <PackageArguments Condition="$(Packages) != ''">"$(IntermediateOutputPath)pkg\pip.exe" -B -m pip install -U $(Packages)</PackageArguments>
+
+ <NugetPackCommand>"$(Nuget)" pack "$(IntermediateOutputPath)pkg\python.nuspec" -BasePath "$(IntermediateOutputPath)pkg"</NugetPackCommand>
+ <NugetPackSymbolsCommand Condition="Exists('$(MSBuildThisFileDirectory)\$(OutputName).symbols.nuspec')">"$(Nuget)" pack "$(MSBuildThisFileDirectory)\$(OutputName).symbols.nuspec" -BasePath "$(BuildPath.TrimEnd(`\`))"</NugetPackSymbolsCommand>
+ <NugetArguments>$(NugetArguments) -OutputDirectory "$(OutputPath.Trim(`\`))"</NugetArguments>
+ <NugetArguments>$(NugetArguments) -Version "$(NuspecVersion)"</NugetArguments>
+ <NugetArguments>$(NugetArguments) -NoPackageAnalysis -NonInteractive</NugetArguments>
+
+ <Environment>$(Environment)%0D%0Aset PYTHONPATH=$(PySourcePath)Lib</Environment>
+ <Environment>$(Environment)%0D%0Aset PYTHON_NUSPEC_VERSION=$(NuspecVersion)</Environment>
+ <Environment Condition="$(Platform) != 'x86'">$(Environment)%0D%0Aset PYTHON_PROPS_PLATFORM=$(Platform)</Environment>
+ <Environment Condition="$(Platform) == 'x86'">$(Environment)%0D%0Aset PYTHON_PROPS_PLATFORM=Win32</Environment>
+ <Environment>$(Environment)%0D%0Amkdir "$(OutputPath.Trim(`\`))" >nul 2>nul</Environment>
+ </PropertyGroup>
+
+ <Target Name="_NugetMissing" BeforeTargets="_Build" Condition="!Exists($(Nuget))">
+ <Error Text="$(Nuget) could not be found. Either avoid specifying the property or update your externals/windows-installer files." />
+ </Target>
+
+ <Target Name="_Build">
+ <Exec Command="$(CleanCommand)" />
+ <Exec Command="setlocal%0D%0A$(Environment)%0D%0A$(PythonArguments)%0D%0A$(PackageArguments)" />
+
+ <Exec Command="$(NugetPackCommand) $(NugetArguments)" />
+ <Exec Command="$(NugetPackSymbolsCommand) $(NugetArguments)" Condition="$(NugetPackSymbolsCommand) != ''" />
+ </Target>
+
+ <Target Name="AfterBuild" />
+ <Target Name="Build" DependsOnTargets="_Build;AfterBuild" />
+</Project>
opname_including_specialized[255] = 'DO_TRACING'
used[255] = True
- with (open(outfile, 'w') as fobj, open(internaloutfile, 'w') as iobj):
+ with open(outfile, 'w') as fobj, open(internaloutfile, 'w') as iobj:
fobj.write(header)
iobj.write(internal_header)
def fetch_server_certificate (host, port):
def subproc(cmd):
- from subprocess import Popen, PIPE, STDOUT
- proc = Popen(cmd, stdout=PIPE, stderr=STDOUT, shell=True)
+ from subprocess import Popen, PIPE, STDOUT, DEVNULL
+ proc = Popen(cmd, stdout=PIPE, stderr=STDOUT, stdin=DEVNULL)
status = proc.wait()
output = proc.stdout.read()
return status, output
fp.write(m.group(1) + b"\n")
try:
tn2 = (outfile or tempfile.mktemp())
- status, output = subproc(r'openssl x509 -in "%s" -out "%s"' %
- (tn, tn2))
+ cmd = ['openssl', 'x509', '-in', tn, '-out', tn2]
+ status, output = subproc(cmd)
if status != 0:
raise RuntimeError('OpenSSL x509 failed with status %s and '
'output: %r' % (status, output))
finally:
os.unlink(tn)
- if sys.platform.startswith("win"):
- tfile = tempfile.mktemp()
- with open(tfile, "w") as fp:
- fp.write("quit\n")
- try:
- status, output = subproc(
- 'openssl s_client -connect "%s:%s" -showcerts < "%s"' %
- (host, port, tfile))
- finally:
- os.unlink(tfile)
- else:
- status, output = subproc(
- 'openssl s_client -connect "%s:%s" -showcerts < /dev/null' %
- (host, port))
+ cmd = ['openssl', 's_client', '-connect', '%s:%s' % (host, port), '-showcerts']
+ status, output = subproc(cmd)
+
if status != 0:
raise RuntimeError('OpenSSL connect failed with status %s and '
'output: %r' % (status, output))
-@rem Recreate some python charmap codecs from the Windows function\r
-@rem MultiByteToWideChar.\r
-\r
-@cd /d %~dp0\r
-@mkdir build\r
-@rem Arabic DOS code page\r
-c:\python30\python genwincodec.py 720 > build/cp720.py\r
+@rem Recreate some python charmap codecs from the Windows function
+@rem MultiByteToWideChar.
+
+@cd /d %~dp0
+@mkdir build
+@rem Arabic DOS code page
+c:\python30\python genwincodec.py 720 > build/cp720.py
# Python WebAssembly (WASM) build
-**WARNING: WASM support is highly experimental! Lots of features are not working yet.**
+**WARNING: WASM support is work-in-progress! Lots of features are not working yet.**
This directory contains configuration and helpers to facilitate cross
-compilation of CPython to WebAssembly (WASM). For now we support
-*wasm32-emscripten* builds for modern browser and for *Node.js*. WASI
-(*wasm32-wasi*) is work-in-progress
+compilation of CPython to WebAssembly (WASM). Python supports Emscripten
+(*wasm32-emscripten*) and WASI (*wasm32-wasi*) targets. Emscripten builds
+run in modern browsers and JavaScript runtimes like *Node.js*. WASI builds
+use WASM runtimes such as *wasmtime*.
+
+Users and developers are encouraged to use the script
+`Tools/wasm/wasm_build.py`. The tool automates the build process and provides
+assistance with installation of SDKs.
## wasm32-emscripten build
Cross compiling to the wasm32-emscripten platform needs the
[Emscripten](https://emscripten.org/) SDK and a build Python interpreter.
-Emscripten 3.1.8 or newer are recommended. All commands below are relative
+Emscripten 3.1.19 or newer are recommended. All commands below are relative
to a repository checkout.
Christian Heimes maintains a container image with Emscripten SDK, Python
### Compile a build Python interpreter
-From within the container, run the following commands:
+From within the container, run the following command:
+
+```shell
+./Tools/wasm/wasm_build.py build
+```
+
+The command is roughly equivalent to:
```shell
mkdir -p builddir/build
popd
```
-### Fetch and build additional emscripten ports
+### Cross-compile to wasm32-emscripten for browser
```shell
-embuilder build zlib bzip2
+./Tools/wasm/wasm_build.py emscripten-browser
```
-### Cross compile to wasm32-emscripten for browser
+The command is roughly equivalent to:
```shell
mkdir -p builddir/emscripten-browser
### Cross compile to wasm32-emscripten for node
```shell
-mkdir -p builddir/emscripten-node
-pushd builddir/emscripten-node
+./Tools/wasm/wasm_build.py emscripten-browser-dl
+```
+
+The command is roughly equivalent to:
+
+```shell
+mkdir -p builddir/emscripten-node-dl
+pushd builddir/emscripten-node-dl
CONFIG_SITE=../../Tools/wasm/config.site-wasm32-emscripten \
emconfigure ../../configure -C \
--host=wasm32-unknown-emscripten \
--build=$(../../config.guess) \
--with-emscripten-target=node \
+ --enable-wasm-dynamic-linking \
--with-build-python=$(pwd)/../build/python
emmake make -j$(nproc)
```
```shell
-node --experimental-wasm-threads --experimental-wasm-bulk-memory --experimental-wasm-bigint builddir/emscripten-node/python.js
+node --experimental-wasm-threads --experimental-wasm-bulk-memory --experimental-wasm-bigint builddir/emscripten-node-dl/python.js
```
(``--experimental-wasm-bigint`` is not needed with recent NodeJS versions)
- Node RawFS allows direct access to the host file system without need to
perform ``FS.mount()`` call.
+## wasm64-emscripten
+
+- wasm64 requires recent NodeJS and ``--experimental-wasm-memory64``.
+- ``EM_JS`` functions must return ``BigInt()``.
+- ``Py_BuildValue()`` format strings must match size of types. Confusing 32
+ and 64 bits types leads to memory corruption, see
+ [gh-95876](https://github.com/python/cpython/issues/95876) and
+ [gh-95878](https://github.com/python/cpython/issues/95878).
+
# Hosting Python WASM builds
The simple REPL terminal uses SharedArrayBuffer. For security reasons
``/opt/wasi-sdk`` or ``$WASI_SDK_PATH``.
```shell
+./Tools/wasm/wasm_build.py wasi
+```
+
+The command is roughly equivalent to:
+
+```shell
mkdir -p builddir/wasi
pushd builddir/wasi
```python
>>> import os, sys
>>> os.uname()
-posix.uname_result(sysname='Emscripten', nodename='emscripten', release='1.0', version='#1', machine='wasm32')
+posix.uname_result(
+ sysname='Emscripten',
+ nodename='emscripten',
+ release='3.1.19',
+ version='#1',
+ machine='wasm32'
+)
>>> os.name
'posix'
>>> sys.platform
'emscripten'
>>> sys._emscripten_info
sys._emscripten_info(
- emscripten_version=(3, 1, 8),
- runtime='Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0',
+ emscripten_version=(3, 1, 10),
+ runtime='Mozilla/5.0 (X11; Linux x86_64; rv:104.0) Gecko/20100101 Firefox/104.0',
pthreads=False,
shared_memory=False
)
+```
+
+```python
>>> sys._emscripten_info
-sys._emscripten_info(emscripten_version=(3, 1, 8), runtime='Node.js v14.18.2', pthreads=True, shared_memory=True)
+sys._emscripten_info(
+ emscripten_version=(3, 1, 19),
+ runtime='Node.js v14.18.2',
+ pthreads=True,
+ shared_memory=True
+)
```
```python
>>> import os, sys
>>> os.uname()
-posix.uname_result(sysname='wasi', nodename='(none)', release='0.0.0', version='0.0.0', machine='wasm32')
+posix.uname_result(
+ sysname='wasi',
+ nodename='(none)',
+ release='0.0.0',
+ version='0.0.0',
+ machine='wasm32'
+)
>>> os.name
'posix'
>>> sys.platform
**NOTE**: WASI-SDK's clang may show a warning on Fedora:
``/lib64/libtinfo.so.6: no version information available``,
-[RHBZ#1875587](https://bugzilla.redhat.com/show_bug.cgi?id=1875587).
+[RHBZ#1875587](https://bugzilla.redhat.com/show_bug.cgi?id=1875587). The
+warning can be ignored.
```shell
export WASI_VERSION=16
### WASI debugging
-* ``wasmtime run -g`` generates debugging symbols for gdb and lldb.
+* ``wasmtime run -g`` generates debugging symbols for gdb and lldb. The
+ feature is currently broken, see
+ https://github.com/bytecodealliance/wasmtime/issues/4669 .
* The environment variable ``RUST_LOG=wasi_common`` enables debug and
trace logging.
ac_cv_func_getegid=no
ac_cv_func_seteuid=no
ac_cv_func_setegid=no
+ac_cv_func_getresuid=no
+ac_cv_func_getresgid=no
+ac_cv_func_setresuid=no
+ac_cv_func_setresgid=no
# Syscalls not implemented in emscripten
# [Errno 52] Function not implemented
export PKG_CONFIG_PATH PKG_CONFIG_LIBDIR PKG_CONFIG_SYSROOT_DIR
export PATH
-exec "$@"
+# no exec, it makes arvg[0] path absolute.
+"$@"
# Pure Python implementations of C extensions
"_pydecimal.py",
"_pyio.py",
+ # concurrent threading
+ "concurrent/futures/thread.py",
# Misc unused or large files
"pydoc_data/",
"msilib/",
"_dbm": ["dbm/ndbm.py"],
"_gdbm": ["dbm/gnu.py"],
"_json": ["json/"],
- "_multiprocessing": ["concurrent/", "multiprocessing/"],
+ "_multiprocessing": ["concurrent/futures/process.py", "multiprocessing/"],
"pyexpat": ["xml/", "xmlrpc/"],
"readline": ["rlcompleter.py"],
"_sqlite3": ["sqlite3/"],
"_ssl": ["ssl.py"],
"_tkinter": ["idlelib/", "tkinter/", "turtle.py", "turtledemo/"],
-
"_zoneinfo": ["zoneinfo/"],
}
"unittest/test/",
)
+SYSCONFIG_NAMES = (
+ "_sysconfigdata__emscripten_wasm32-emscripten",
+ "_sysconfigdata__emscripten_wasm32-emscripten",
+ "_sysconfigdata__wasi_wasm32-wasi",
+ "_sysconfigdata__wasi_wasm64-wasi",
+)
+
+
def get_builddir(args: argparse.Namespace) -> pathlib.Path:
- """Get builddir path from pybuilddir.txt
- """
+ """Get builddir path from pybuilddir.txt"""
with open("pybuilddir.txt", encoding="utf-8") as f:
builddir = f.read()
return pathlib.Path(builddir)
def get_sysconfigdata(args: argparse.Namespace) -> pathlib.Path:
- """Get path to sysconfigdata relative to build root
- """
+ """Get path to sysconfigdata relative to build root"""
data_name = sysconfig._get_sysconfigdata_name()
- assert "emscripten_wasm32" in data_name
+ if not data_name.startswith(SYSCONFIG_NAMES):
+ raise ValueError(
+ f"Invalid sysconfig data name '{data_name}'.", SYSCONFIG_NAMES
+ )
filename = data_name + ".py"
return args.builddir / filename
*,
optimize: int = 0,
) -> None:
- def filterfunc(name: str) -> bool:
- return not name.startswith(args.omit_subdirs_absolute)
+ def filterfunc(filename: str) -> bool:
+ pathname = pathlib.Path(filename).resolve()
+ return pathname not in args.omit_files_absolute
with zipfile.PyZipFile(
- args.wasm_stdlib_zip, mode="w", compression=args.compression, optimize=optimize
+ args.wasm_stdlib_zip,
+ mode="w",
+ compression=args.compression,
+ optimize=optimize,
) as pzf:
if args.compresslevel is not None:
pzf.compresslevel = args.compresslevel
pzf.writepy(args.sysconfig_data)
for entry in sorted(args.srcdir_lib.iterdir()):
+ entry = entry.resolve()
if entry.name == "__pycache__":
continue
- if entry in args.omit_files_absolute:
- continue
if entry.name.endswith(".py") or entry.is_dir():
# writepy() writes .pyc files (bytecode).
pzf.writepy(entry, filterfunc=filterfunc)
extmods = detect_extension_modules(args)
omit_files = list(OMIT_FILES)
- omit_files.extend(OMIT_NETWORKING_FILES)
+ if sysconfig.get_platform().startswith("emscripten"):
+ omit_files.extend(OMIT_NETWORKING_FILES)
for modname, modfiles in OMIT_MODULE_FILES.items():
if not extmods.get(modname):
omit_files.extend(modfiles)
- args.omit_files_absolute = {args.srcdir_lib / name for name in omit_files}
- args.omit_subdirs_absolute = tuple(
- str(args.srcdir_lib / name) for name in OMIT_SUBDIRS
- )
+ args.omit_files_absolute = {
+ (args.srcdir_lib / name).resolve() for name in omit_files
+ }
# Empty, unused directory for dynamic libs, but required for site initialization.
args.wasm_dynload.mkdir(parents=True, exist_ok=True)
--- /dev/null
+#!/usr/bin/env python3
+"""Build script for Python on WebAssembly platforms.
+
+ $ ./Tools/wasm/wasm_builder.py emscripten-browser build repl
+ $ ./Tools/wasm/wasm_builder.py emscripten-node-dl build test
+ $ ./Tools/wasm/wasm_builder.py wasi build test
+
+Primary build targets are "emscripten-node-dl" (NodeJS, dynamic linking),
+"emscripten-browser", and "wasi".
+
+Emscripten builds require a recent Emscripten SDK. The tools looks for an
+activated EMSDK environment (". /path/to/emsdk_env.sh"). System packages
+(Debian, Homebrew) are not supported.
+
+WASI builds require WASI SDK and wasmtime. The tool looks for 'WASI_SDK_PATH'
+and falls back to /opt/wasi-sdk.
+
+The 'build' Python interpreter must be rebuilt every time Python's byte code
+changes.
+
+ ./Tools/wasm/wasm_builder.py --clean build build
+
+"""
+import argparse
+import enum
+import dataclasses
+import logging
+import os
+import pathlib
+import re
+import shlex
+import shutil
+import socket
+import subprocess
+import sys
+import sysconfig
+import tempfile
+import time
+import warnings
+import webbrowser
+
+# for Python 3.8
+from typing import Any, Callable, Dict, Iterable, List, Optional, Tuple, Union
+
+logger = logging.getLogger("wasm_build")
+
+SRCDIR = pathlib.Path(__file__).parent.parent.parent.absolute()
+WASMTOOLS = SRCDIR / "Tools" / "wasm"
+BUILDDIR = SRCDIR / "builddir"
+CONFIGURE = SRCDIR / "configure"
+SETUP_LOCAL = SRCDIR / "Modules" / "Setup.local"
+
+HAS_CCACHE = shutil.which("ccache") is not None
+
+# path to WASI-SDK root
+WASI_SDK_PATH = pathlib.Path(os.environ.get("WASI_SDK_PATH", "/opt/wasi-sdk"))
+
+# path to Emscripten SDK config file.
+# auto-detect's EMSDK in /opt/emsdk without ". emsdk_env.sh".
+EM_CONFIG = pathlib.Path(os.environ.setdefault("EM_CONFIG", "/opt/emsdk/.emscripten"))
+EMSDK_MIN_VERSION = (3, 1, 19)
+EMSDK_BROKEN_VERSION = {
+ (3, 1, 14): "https://github.com/emscripten-core/emscripten/issues/17338",
+ (3, 1, 16): "https://github.com/emscripten-core/emscripten/issues/17393",
+ (3, 1, 20): "https://github.com/emscripten-core/emscripten/issues/17720",
+}
+_MISSING = pathlib.PurePath("MISSING")
+
+WASM_WEBSERVER = WASMTOOLS / "wasm_webserver.py"
+
+CLEAN_SRCDIR = f"""
+Builds require a clean source directory. Please use a clean checkout or
+run "make clean -C '{SRCDIR}'".
+"""
+
+INSTALL_NATIVE = f"""
+Builds require a C compiler (gcc, clang), make, pkg-config, and development
+headers for dependencies like zlib.
+
+Debian/Ubuntu: sudo apt install build-essential git curl pkg-config zlib1g-dev
+Fedora/CentOS: sudo dnf install gcc make git-core curl pkgconfig zlib-devel
+"""
+
+INSTALL_EMSDK = """
+wasm32-emscripten builds need Emscripten SDK. Please follow instructions at
+https://emscripten.org/docs/getting_started/downloads.html how to install
+Emscripten and how to activate the SDK with "emsdk_env.sh".
+
+ git clone https://github.com/emscripten-core/emsdk.git /path/to/emsdk
+ cd /path/to/emsdk
+ ./emsdk install latest
+ ./emsdk activate latest
+ source /path/to/emsdk_env.sh
+"""
+
+INSTALL_WASI_SDK = """
+wasm32-wasi builds need WASI SDK. Please fetch the latest SDK from
+https://github.com/WebAssembly/wasi-sdk/releases and install it to
+"/opt/wasi-sdk". Alternatively you can install the SDK in a different location
+and point the environment variable WASI_SDK_PATH to the root directory
+of the SDK. The SDK is available for Linux x86_64, macOS x86_64, and MinGW.
+"""
+
+INSTALL_WASMTIME = """
+wasm32-wasi tests require wasmtime on PATH. Please follow instructions at
+https://wasmtime.dev/ to install wasmtime.
+"""
+
+
+def parse_emconfig(
+ emconfig: pathlib.Path = EM_CONFIG,
+) -> Tuple[pathlib.PurePath, pathlib.PurePath]:
+ """Parse EM_CONFIG file and lookup EMSCRIPTEN_ROOT and NODE_JS.
+
+ The ".emscripten" config file is a Python snippet that uses "EM_CONFIG"
+ environment variable. EMSCRIPTEN_ROOT is the "upstream/emscripten"
+ subdirectory with tools like "emconfigure".
+ """
+ if not emconfig.exists():
+ return _MISSING, _MISSING
+ with open(emconfig, encoding="utf-8") as f:
+ code = f.read()
+ # EM_CONFIG file is a Python snippet
+ local: Dict[str, Any] = {}
+ exec(code, globals(), local)
+ emscripten_root = pathlib.Path(local["EMSCRIPTEN_ROOT"])
+ node_js = pathlib.Path(local["NODE_JS"])
+ return emscripten_root, node_js
+
+
+EMSCRIPTEN_ROOT, NODE_JS = parse_emconfig()
+
+
+def read_python_version(configure: pathlib.Path = CONFIGURE) -> str:
+ """Read PACKAGE_VERSION from configure script
+
+ configure and configure.ac are the canonical source for major and
+ minor version number.
+ """
+ version_re = re.compile("^PACKAGE_VERSION='(\d\.\d+)'")
+ with configure.open(encoding="utf-8") as f:
+ for line in f:
+ mo = version_re.match(line)
+ if mo:
+ return mo.group(1)
+ raise ValueError(f"PACKAGE_VERSION not found in {configure}")
+
+
+PYTHON_VERSION = read_python_version()
+
+
+class ConditionError(ValueError):
+ def __init__(self, info: str, text: str):
+ self.info = info
+ self.text = text
+
+ def __str__(self):
+ return f"{type(self).__name__}: '{self.info}'\n{self.text}"
+
+
+class MissingDependency(ConditionError):
+ pass
+
+
+class DirtySourceDirectory(ConditionError):
+ pass
+
+
+@dataclasses.dataclass
+class Platform:
+ """Platform-specific settings
+
+ - CONFIG_SITE override
+ - configure wrapper (e.g. emconfigure)
+ - make wrapper (e.g. emmake)
+ - additional environment variables
+ - check function to verify SDK
+ """
+
+ name: str
+ pythonexe: str
+ config_site: Optional[pathlib.PurePath]
+ configure_wrapper: Optional[pathlib.PurePath]
+ make_wrapper: Optional[pathlib.PurePath]
+ environ: dict
+ check: Callable[[], None]
+ # Used for build_emports().
+ ports: Optional[pathlib.PurePath]
+ cc: Optional[pathlib.PurePath]
+
+ def getenv(self, profile: "BuildProfile") -> dict:
+ return self.environ.copy()
+
+
+def _check_clean_src():
+ candidates = [
+ SRCDIR / "Programs" / "python.o",
+ SRCDIR / "Python" / "frozen_modules" / "importlib._bootstrap.h",
+ ]
+ for candidate in candidates:
+ if candidate.exists():
+ raise DirtySourceDirectory(os.fspath(candidate), CLEAN_SRCDIR)
+
+
+def _check_native():
+ if not any(shutil.which(cc) for cc in ["cc", "gcc", "clang"]):
+ raise MissingDependency("cc", INSTALL_NATIVE)
+ if not shutil.which("make"):
+ raise MissingDependency("make", INSTALL_NATIVE)
+ if sys.platform == "linux":
+ # skip pkg-config check on macOS
+ if not shutil.which("pkg-config"):
+ raise MissingDependency("pkg-config", INSTALL_NATIVE)
+ # zlib is needed to create zip files
+ for devel in ["zlib"]:
+ try:
+ subprocess.check_call(["pkg-config", "--exists", devel])
+ except subprocess.CalledProcessError:
+ raise MissingDependency(devel, INSTALL_NATIVE) from None
+ _check_clean_src()
+
+
+NATIVE = Platform(
+ "native",
+ # macOS has python.exe
+ pythonexe=sysconfig.get_config_var("BUILDPYTHON") or "python",
+ config_site=None,
+ configure_wrapper=None,
+ ports=None,
+ cc=None,
+ make_wrapper=None,
+ environ={},
+ check=_check_native,
+)
+
+
+def _check_emscripten():
+ if EMSCRIPTEN_ROOT is _MISSING:
+ raise MissingDependency("Emscripten SDK EM_CONFIG", INSTALL_EMSDK)
+ # sanity check
+ emconfigure = EMSCRIPTEN.configure_wrapper
+ if not emconfigure.exists():
+ raise MissingDependency(os.fspath(emconfigure), INSTALL_EMSDK)
+ # version check
+ version_txt = EMSCRIPTEN_ROOT / "emscripten-version.txt"
+ if not version_txt.exists():
+ raise MissingDependency(os.fspath(version_txt), INSTALL_EMSDK)
+ with open(version_txt) as f:
+ version = f.read().strip().strip('"')
+ if version.endswith("-git"):
+ # git / upstream / tot-upstream installation
+ version = version[:-4]
+ version_tuple = tuple(int(v) for v in version.split("."))
+ if version_tuple < EMSDK_MIN_VERSION:
+ raise ConditionError(
+ os.fspath(version_txt),
+ f"Emscripten SDK {version} in '{EMSCRIPTEN_ROOT}' is older than "
+ "minimum required version "
+ f"{'.'.join(str(v) for v in EMSDK_MIN_VERSION)}.",
+ )
+ broken = EMSDK_BROKEN_VERSION.get(version_tuple)
+ if broken is not None:
+ raise ConditionError(
+ os.fspath(version_txt),
+ (
+ f"Emscripten SDK {version} in '{EMSCRIPTEN_ROOT}' has known "
+ f"bugs, see {broken}."
+ ),
+ )
+ if os.environ.get("PKG_CONFIG_PATH"):
+ warnings.warn(
+ "PKG_CONFIG_PATH is set and not empty. emconfigure overrides "
+ "this environment variable. Use EM_PKG_CONFIG_PATH instead."
+ )
+ _check_clean_src()
+
+
+EMSCRIPTEN = Platform(
+ "emscripten",
+ pythonexe="python.js",
+ config_site=WASMTOOLS / "config.site-wasm32-emscripten",
+ configure_wrapper=EMSCRIPTEN_ROOT / "emconfigure",
+ ports=EMSCRIPTEN_ROOT / "embuilder",
+ cc=EMSCRIPTEN_ROOT / "emcc",
+ make_wrapper=EMSCRIPTEN_ROOT / "emmake",
+ environ={
+ # workaround for https://github.com/emscripten-core/emscripten/issues/17635
+ "TZ": "UTC",
+ "EM_COMPILER_WRAPPER": "ccache" if HAS_CCACHE else None,
+ "PATH": [EMSCRIPTEN_ROOT, os.environ["PATH"]],
+ },
+ check=_check_emscripten,
+)
+
+
+def _check_wasi():
+ wasm_ld = WASI_SDK_PATH / "bin" / "wasm-ld"
+ if not wasm_ld.exists():
+ raise MissingDependency(os.fspath(wasm_ld), INSTALL_WASI_SDK)
+ wasmtime = shutil.which("wasmtime")
+ if wasmtime is None:
+ raise MissingDependency("wasmtime", INSTALL_WASMTIME)
+ _check_clean_src()
+
+
+WASI = Platform(
+ "wasi",
+ pythonexe="python.wasm",
+ config_site=WASMTOOLS / "config.site-wasm32-wasi",
+ configure_wrapper=WASMTOOLS / "wasi-env",
+ ports=None,
+ cc=WASI_SDK_PATH / "bin" / "clang",
+ make_wrapper=None,
+ environ={
+ "WASI_SDK_PATH": WASI_SDK_PATH,
+ # workaround for https://github.com/python/cpython/issues/95952
+ "HOSTRUNNER": (
+ "wasmtime run "
+ "--env PYTHONPATH=/{relbuilddir}/build/lib.wasi-wasm32-{version}:/Lib "
+ "--mapdir /::{srcdir} --"
+ ),
+ "PATH": [WASI_SDK_PATH / "bin", os.environ["PATH"]],
+ },
+ check=_check_wasi,
+)
+
+
+class Host(enum.Enum):
+ """Target host triplet"""
+
+ wasm32_emscripten = "wasm32-unknown-emscripten"
+ wasm64_emscripten = "wasm64-unknown-emscripten"
+ wasm32_wasi = "wasm32-unknown-wasi"
+ wasm64_wasi = "wasm64-unknown-wasi"
+ # current platform
+ build = sysconfig.get_config_var("BUILD_GNU_TYPE")
+
+ @property
+ def platform(self) -> Platform:
+ if self.is_emscripten:
+ return EMSCRIPTEN
+ elif self.is_wasi:
+ return WASI
+ else:
+ return NATIVE
+
+ @property
+ def is_emscripten(self) -> bool:
+ cls = type(self)
+ return self in {cls.wasm32_emscripten, cls.wasm64_emscripten}
+
+ @property
+ def is_wasi(self) -> bool:
+ cls = type(self)
+ return self in {cls.wasm32_wasi, cls.wasm64_wasi}
+
+ def get_extra_paths(self) -> Iterable[pathlib.PurePath]:
+ """Host-specific os.environ["PATH"] entries.
+
+ Emscripten's Node version 14.x works well for wasm32-emscripten.
+ wasm64-emscripten requires more recent v8 version, e.g. node 16.x.
+ Attempt to use system's node command.
+ """
+ cls = type(self)
+ if self == cls.wasm32_emscripten:
+ return [NODE_JS.parent]
+ elif self == cls.wasm64_emscripten:
+ # TODO: look for recent node
+ return []
+ else:
+ return []
+
+ @property
+ def emport_args(self) -> List[str]:
+ """Host-specific port args (Emscripten)."""
+ cls = type(self)
+ if self is cls.wasm64_emscripten:
+ return ["-sMEMORY64=1"]
+ elif self is cls.wasm32_emscripten:
+ return ["-sMEMORY64=0"]
+ else:
+ return []
+
+ @property
+ def embuilder_args(self) -> List[str]:
+ """Host-specific embuilder args (Emscripten)."""
+ cls = type(self)
+ if self is cls.wasm64_emscripten:
+ return ["--wasm64"]
+ else:
+ return []
+
+
+class EmscriptenTarget(enum.Enum):
+ """Emscripten-specific targets (--with-emscripten-target)"""
+
+ browser = "browser"
+ browser_debug = "browser-debug"
+ node = "node"
+ node_debug = "node-debug"
+
+ @property
+ def is_browser(self):
+ cls = type(self)
+ return self in {cls.browser, cls.browser_debug}
+
+ @property
+ def emport_args(self) -> List[str]:
+ """Target-specific port args."""
+ cls = type(self)
+ if self in {cls.browser_debug, cls.node_debug}:
+ # some libs come in debug and non-debug builds
+ return ["-O0"]
+ else:
+ return ["-O2"]
+
+
+class SupportLevel(enum.Enum):
+ supported = "tier 3, supported"
+ working = "working, unsupported"
+ experimental = "experimental, may be broken"
+ broken = "broken / unavailable"
+
+ def __bool__(self):
+ cls = type(self)
+ return self in {cls.supported, cls.working}
+
+
+@dataclasses.dataclass
+class BuildProfile:
+ name: str
+ support_level: SupportLevel
+ host: Host
+ target: Union[EmscriptenTarget, None] = None
+ dynamic_linking: Union[bool, None] = None
+ pthreads: Union[bool, None] = None
+ default_testopts: str = "-j2"
+
+ @property
+ def is_browser(self) -> bool:
+ """Is this a browser build?"""
+ return self.target is not None and self.target.is_browser
+
+ @property
+ def builddir(self) -> pathlib.Path:
+ """Path to build directory"""
+ return BUILDDIR / self.name
+
+ @property
+ def python_cmd(self) -> pathlib.Path:
+ """Path to python executable"""
+ return self.builddir / self.host.platform.pythonexe
+
+ @property
+ def makefile(self) -> pathlib.Path:
+ """Path to Makefile"""
+ return self.builddir / "Makefile"
+
+ @property
+ def configure_cmd(self) -> List[str]:
+ """Generate configure command"""
+ # use relative path, so WASI tests can find lib prefix.
+ # pathlib.Path.relative_to() does not work here.
+ configure = os.path.relpath(CONFIGURE, self.builddir)
+ cmd = [configure, "-C"]
+ platform = self.host.platform
+ if platform.configure_wrapper:
+ cmd.insert(0, os.fspath(platform.configure_wrapper))
+
+ cmd.append(f"--host={self.host.value}")
+ cmd.append(f"--build={Host.build.value}")
+
+ if self.target is not None:
+ assert self.host.is_emscripten
+ cmd.append(f"--with-emscripten-target={self.target.value}")
+
+ if self.dynamic_linking is not None:
+ assert self.host.is_emscripten
+ opt = "enable" if self.dynamic_linking else "disable"
+ cmd.append(f"--{opt}-wasm-dynamic-linking")
+
+ if self.pthreads is not None:
+ assert self.host.is_emscripten
+ opt = "enable" if self.pthreads else "disable"
+ cmd.append(f"--{opt}-wasm-pthreads")
+
+ if self.host != Host.build:
+ cmd.append(f"--with-build-python={BUILD.python_cmd}")
+
+ if platform.config_site is not None:
+ cmd.append(f"CONFIG_SITE={platform.config_site}")
+
+ return cmd
+
+ @property
+ def make_cmd(self) -> List[str]:
+ """Generate make command"""
+ cmd = ["make"]
+ platform = self.host.platform
+ if platform.make_wrapper:
+ cmd.insert(0, os.fspath(platform.make_wrapper))
+ return cmd
+
+ def getenv(self) -> dict:
+ """Generate environ dict for platform"""
+ env = os.environ.copy()
+ env.setdefault("MAKEFLAGS", f"-j{os.cpu_count()}")
+ platenv = self.host.platform.getenv(self)
+ for key, value in platenv.items():
+ if value is None:
+ env.pop(key, None)
+ elif key == "PATH":
+ # list of path items, prefix with extra paths
+ new_path: List[pathlib.PurePath] = []
+ new_path.extend(self.host.get_extra_paths())
+ new_path.extend(value)
+ env[key] = os.pathsep.join(os.fspath(p) for p in new_path)
+ elif isinstance(value, str):
+ env[key] = value.format(
+ relbuilddir=self.builddir.relative_to(SRCDIR),
+ srcdir=SRCDIR,
+ version=PYTHON_VERSION,
+ )
+ else:
+ env[key] = value
+ return env
+
+ def _run_cmd(
+ self,
+ cmd: Iterable[str],
+ args: Iterable[str] = (),
+ cwd: Optional[pathlib.Path] = None,
+ ):
+ cmd = list(cmd)
+ cmd.extend(args)
+ if cwd is None:
+ cwd = self.builddir
+ logger.info('Running "%s" in "%s"', shlex.join(cmd), cwd)
+ return subprocess.check_call(
+ cmd,
+ cwd=os.fspath(cwd),
+ env=self.getenv(),
+ )
+
+ def _check_execute(self):
+ if self.is_browser:
+ raise ValueError(f"Cannot execute on {self.target}")
+
+ def run_build(self, *args):
+ """Run configure (if necessary) and make"""
+ if not self.makefile.exists():
+ logger.info("Makefile not found, running configure")
+ self.run_configure(*args)
+ self.run_make("all", *args)
+
+ def run_configure(self, *args):
+ """Run configure script to generate Makefile"""
+ os.makedirs(self.builddir, exist_ok=True)
+ return self._run_cmd(self.configure_cmd, args)
+
+ def run_make(self, *args):
+ """Run make (defaults to build all)"""
+ return self._run_cmd(self.make_cmd, args)
+
+ def run_pythoninfo(self, *args):
+ """Run 'make pythoninfo'"""
+ self._check_execute()
+ return self.run_make("pythoninfo", *args)
+
+ def run_test(self, target: str, testopts: Optional[str] = None):
+ """Run buildbottests"""
+ self._check_execute()
+ if testopts is None:
+ testopts = self.default_testopts
+ return self.run_make(target, f"TESTOPTS={testopts}")
+
+ def run_py(self, *args):
+ """Run Python with hostrunner"""
+ self._check_execute()
+ self.run_make(
+ "--eval", f"run: all; $(HOSTRUNNER) ./$(PYTHON) {shlex.join(args)}", "run"
+ )
+
+ def run_browser(self, bind="127.0.0.1", port=8000):
+ """Run WASM webserver and open build in browser"""
+ relbuilddir = self.builddir.relative_to(SRCDIR)
+ url = f"http://{bind}:{port}/{relbuilddir}/python.html"
+ args = [
+ sys.executable,
+ os.fspath(WASM_WEBSERVER),
+ "--bind",
+ bind,
+ "--port",
+ str(port),
+ ]
+ srv = subprocess.Popen(args, cwd=SRCDIR)
+ # wait for server
+ end = time.monotonic() + 3.0
+ while time.monotonic() < end and srv.returncode is None:
+ try:
+ with socket.create_connection((bind, port), timeout=0.1) as s:
+ pass
+ except OSError:
+ time.sleep(0.01)
+ else:
+ break
+
+ webbrowser.open(url)
+
+ try:
+ srv.wait()
+ except KeyboardInterrupt:
+ pass
+
+ def clean(self, all: bool = False):
+ """Clean build directory"""
+ if all:
+ if self.builddir.exists():
+ shutil.rmtree(self.builddir)
+ elif self.makefile.exists():
+ self.run_make("clean")
+
+ def build_emports(self, force: bool = False):
+ """Pre-build emscripten ports."""
+ platform = self.host.platform
+ if platform.ports is None or platform.cc is None:
+ raise ValueError("Need ports and CC command")
+
+ embuilder_cmd = [os.fspath(platform.ports)]
+ embuilder_cmd.extend(self.host.embuilder_args)
+ if force:
+ embuilder_cmd.append("--force")
+
+ ports_cmd = [os.fspath(platform.cc)]
+ ports_cmd.extend(self.host.emport_args)
+ if self.target:
+ ports_cmd.extend(self.target.emport_args)
+
+ if self.dynamic_linking:
+ # Trigger PIC build.
+ ports_cmd.append("-sMAIN_MODULE")
+ embuilder_cmd.append("--pic")
+
+ if self.pthreads:
+ # Trigger multi-threaded build.
+ ports_cmd.append("-sUSE_PTHREADS")
+
+ # Pre-build libbz2, libsqlite3, libz, and some system libs.
+ ports_cmd.extend(["-sUSE_ZLIB", "-sUSE_BZIP2", "-sUSE_SQLITE3"])
+ # Multi-threaded sqlite3 has different suffix
+ embuilder_cmd.extend(
+ ["build", "bzip2", "sqlite3-mt" if self.pthreads else "sqlite3", "zlib"]
+ )
+
+ self._run_cmd(embuilder_cmd, cwd=SRCDIR)
+
+ with tempfile.TemporaryDirectory(suffix="-py-emport") as tmpdir:
+ tmppath = pathlib.Path(tmpdir)
+ main_c = tmppath / "main.c"
+ main_js = tmppath / "main.js"
+ with main_c.open("w") as f:
+ f.write("int main(void) { return 0; }\n")
+ args = [
+ os.fspath(main_c),
+ "-o",
+ os.fspath(main_js),
+ ]
+ self._run_cmd(ports_cmd, args, cwd=tmppath)
+
+
+# native build (build Python)
+BUILD = BuildProfile(
+ "build",
+ support_level=SupportLevel.working,
+ host=Host.build,
+)
+
+_profiles = [
+ BUILD,
+ # wasm32-emscripten
+ BuildProfile(
+ "emscripten-browser",
+ support_level=SupportLevel.supported,
+ host=Host.wasm32_emscripten,
+ target=EmscriptenTarget.browser,
+ dynamic_linking=True,
+ ),
+ BuildProfile(
+ "emscripten-browser-debug",
+ support_level=SupportLevel.working,
+ host=Host.wasm32_emscripten,
+ target=EmscriptenTarget.browser_debug,
+ dynamic_linking=True,
+ ),
+ BuildProfile(
+ "emscripten-node-dl",
+ support_level=SupportLevel.supported,
+ host=Host.wasm32_emscripten,
+ target=EmscriptenTarget.node,
+ dynamic_linking=True,
+ ),
+ BuildProfile(
+ "emscripten-node-dl-debug",
+ support_level=SupportLevel.working,
+ host=Host.wasm32_emscripten,
+ target=EmscriptenTarget.node_debug,
+ dynamic_linking=True,
+ ),
+ BuildProfile(
+ "emscripten-node-pthreads",
+ support_level=SupportLevel.supported,
+ host=Host.wasm32_emscripten,
+ target=EmscriptenTarget.node,
+ pthreads=True,
+ ),
+ BuildProfile(
+ "emscripten-node-pthreads-debug",
+ support_level=SupportLevel.working,
+ host=Host.wasm32_emscripten,
+ target=EmscriptenTarget.node_debug,
+ pthreads=True,
+ ),
+ # Emscripten build with both pthreads and dynamic linking is crashing.
+ BuildProfile(
+ "emscripten-node-dl-pthreads-debug",
+ support_level=SupportLevel.broken,
+ host=Host.wasm32_emscripten,
+ target=EmscriptenTarget.node_debug,
+ dynamic_linking=True,
+ pthreads=True,
+ ),
+ # wasm64-emscripten (requires Emscripten >= 3.1.21)
+ BuildProfile(
+ "wasm64-emscripten-node-debug",
+ support_level=SupportLevel.experimental,
+ host=Host.wasm64_emscripten,
+ target=EmscriptenTarget.node_debug,
+ # MEMORY64 is not compatible with dynamic linking
+ dynamic_linking=False,
+ pthreads=False,
+ ),
+ # wasm32-wasi
+ BuildProfile(
+ "wasi",
+ support_level=SupportLevel.supported,
+ host=Host.wasm32_wasi,
+ ),
+ # no SDK available yet
+ # BuildProfile(
+ # "wasm64-wasi",
+ # support_level=SupportLevel.broken,
+ # host=Host.wasm64_wasi,
+ # ),
+]
+
+PROFILES = {p.name: p for p in _profiles}
+
+parser = argparse.ArgumentParser(
+ "wasm_build.py",
+ description=__doc__,
+ formatter_class=argparse.RawTextHelpFormatter,
+)
+
+parser.add_argument(
+ "--clean",
+ "-c",
+ help="Clean build directories first",
+ action="store_true",
+)
+
+parser.add_argument(
+ "--verbose",
+ "-v",
+ help="Verbose logging",
+ action="store_true",
+)
+
+parser.add_argument(
+ "--silent",
+ help="Run configure and make in silent mode",
+ action="store_true",
+)
+
+parser.add_argument(
+ "--testopts",
+ help=(
+ "Additional test options for 'test' and 'hostrunnertest', e.g. "
+ "--testopts='-v test_os'."
+ ),
+ default=None,
+)
+
+# Don't list broken and experimental variants in help
+platforms_choices = list(p.name for p in _profiles) + ["cleanall"]
+platforms_help = list(p.name for p in _profiles if p.support_level) + ["cleanall"]
+parser.add_argument(
+ "platform",
+ metavar="PLATFORM",
+ help=f"Build platform: {', '.join(platforms_help)}",
+ choices=platforms_choices,
+)
+
+ops = dict(
+ build="auto build (build 'build' Python, emports, configure, compile)",
+ configure="run ./configure",
+ compile="run 'make all'",
+ pythoninfo="run 'make pythoninfo'",
+ test="run 'make buildbottest TESTOPTS=...' (supports parallel tests)",
+ hostrunnertest="run 'make hostrunnertest TESTOPTS=...'",
+ repl="start interactive REPL / webserver + browser session",
+ clean="run 'make clean'",
+ cleanall="remove all build directories",
+ emports="build Emscripten port with embuilder (only Emscripten)",
+)
+ops_help = "\n".join(f"{op:16s} {help}" for op, help in ops.items())
+parser.add_argument(
+ "ops",
+ metavar="OP",
+ help=f"operation (default: build)\n\n{ops_help}",
+ choices=tuple(ops),
+ default="build",
+ nargs="*",
+)
+
+
+def main():
+ args = parser.parse_args()
+ logging.basicConfig(
+ level=logging.INFO if args.verbose else logging.ERROR,
+ format="%(message)s",
+ )
+
+ if args.platform == "cleanall":
+ for builder in PROFILES.values():
+ builder.clean(all=True)
+ parser.exit(0)
+
+ # additional configure and make args
+ cm_args = ("--silent",) if args.silent else ()
+
+ # nargs=* with default quirk
+ if args.ops == "build":
+ args.ops = ["build"]
+
+ builder = PROFILES[args.platform]
+ try:
+ builder.host.platform.check()
+ except ConditionError as e:
+ parser.error(str(e))
+
+ if args.clean:
+ builder.clean(all=False)
+
+ # hack for WASI
+ if builder.host.is_wasi and not SETUP_LOCAL.exists():
+ SETUP_LOCAL.touch()
+
+ # auto-build
+ if "build" in args.ops:
+ # check and create build Python
+ if builder is not BUILD:
+ logger.info("Auto-building 'build' Python.")
+ try:
+ BUILD.host.platform.check()
+ except ConditionError as e:
+ parser.error(str(e))
+ if args.clean:
+ BUILD.clean(all=False)
+ BUILD.run_build(*cm_args)
+ # build Emscripten ports with embuilder
+ if builder.host.is_emscripten and "emports" not in args.ops:
+ builder.build_emports()
+
+ for op in args.ops:
+ logger.info("\n*** %s %s", args.platform, op)
+ if op == "build":
+ builder.run_build(*cm_args)
+ elif op == "configure":
+ builder.run_configure(*cm_args)
+ elif op == "compile":
+ builder.run_make("all", *cm_args)
+ elif op == "pythoninfo":
+ builder.run_pythoninfo(*cm_args)
+ elif op == "repl":
+ if builder.is_browser:
+ builder.run_browser()
+ else:
+ builder.run_py()
+ elif op == "test":
+ builder.run_test("buildbottest", testopts=args.testopts)
+ elif op == "hostrunnertest":
+ builder.run_test("hostrunnertest", testopts=args.testopts)
+ elif op == "clean":
+ builder.clean(all=False)
+ elif op == "cleanall":
+ builder.clean(all=True)
+ elif op == "emports":
+ builder.build_emports(force=args.clean)
+ else:
+ raise ValueError(op)
+
+ print(builder.builddir)
+ parser.exit(0)
+
+
+if __name__ == "__main__":
+ main()
LINK_PYTHON_OBJS
LINK_PYTHON_DEPS
LIBRARY_DEPS
+NODE
HOSTRUNNER
STATIC_LIBPYTHON
GNULD
CFLAGS=
fi
+case $host in #(
+ wasm64-*-emscripten) :
+
+ as_fn_append CFLAGS " -sMEMORY64=1"
+ as_fn_append LDFLAGS " -sMEMORY64=1"
+ ;; #(
+ *) :
+ ;;
+esac
+
if test "$ac_sys_system" = "Darwin"
then
# Compiler selection on MacOSX is more complicated than
# error unknown wasm32 platform
# endif
#elif defined(__wasm64__)
-# if defined(__EMSCRIPTEN)
+# if defined(__EMSCRIPTEN__)
wasm64-emscripten
# elif defined(__wasi__)
wasm64-wasi
CC="$CC -pg"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-int main() { return 0; }
+int main(void) { return 0; }
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking HOSTRUNNER" >&5
-$as_echo_n "checking HOSTRUNNER... " >&6; }
if test -z "$HOSTRUNNER"
then
case $ac_sys_system/$ac_sys_emscripten_target in #(
Emscripten/node*) :
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}node", so it can be a program name with args.
+set dummy ${ac_tool_prefix}node; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_NODE+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $NODE in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_NODE="$NODE" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_path_NODE="$as_dir/$ac_word$ac_exec_ext"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ ;;
+esac
+fi
+NODE=$ac_cv_path_NODE
+if test -n "$NODE"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NODE" >&5
+$as_echo "$NODE" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_NODE"; then
+ ac_pt_NODE=$NODE
+ # Extract the first word of "node", so it can be a program name with args.
+set dummy node; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_ac_pt_NODE+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $ac_pt_NODE in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_ac_pt_NODE="$ac_pt_NODE" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_path_ac_pt_NODE="$as_dir/$ac_word$ac_exec_ext"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ ;;
+esac
+fi
+ac_pt_NODE=$ac_cv_path_ac_pt_NODE
+if test -n "$ac_pt_NODE"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_NODE" >&5
+$as_echo "$ac_pt_NODE" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_pt_NODE" = x; then
+ NODE="node"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ NODE=$ac_pt_NODE
+ fi
+else
+ NODE="$ac_cv_path_NODE"
+fi
+
+ HOSTRUNNER="$NODE"
# bigint for ctypes c_longlong, c_longdouble
- HOSTRUNNER="node --experimental-wasm-bigint"
+ # no longer available in Node 16
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for node --experimental-wasm-bigint" >&5
+$as_echo_n "checking for node --experimental-wasm-bigint... " >&6; }
+if ${ac_cv_tool_node_wasm_bigint+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ if $NODE -v --experimental-wasm-bigint > /dev/null 2>&1; then
+ ac_cv_tool_node_wasm_bigint=yes
+ else
+ ac_cv_tool_node_wasm_bigint=no
+ fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_tool_node_wasm_bigint" >&5
+$as_echo "$ac_cv_tool_node_wasm_bigint" >&6; }
+ if test "x$ac_cv_tool_node_wasm_bigint" = xyes; then :
+
+ as_fn_append HOSTRUNNER " --experimental-wasm-bigint"
+
+fi
+
if test "x$enable_wasm_pthreads" = xyes; then :
- HOSTRUNNER="$HOSTRUNNER --experimental-wasm-threads --experimental-wasm-bulk-memory"
+ as_fn_append HOSTRUNNER " --experimental-wasm-threads"
+ # no longer available in Node 16
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for node --experimental-wasm-bulk-memory" >&5
+$as_echo_n "checking for node --experimental-wasm-bulk-memory... " >&6; }
+if ${ac_cv_tool_node_wasm_bulk_memory+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ if $NODE -v --experimental-wasm-bulk-memory > /dev/null 2>&1; then
+ ac_cv_tool_node_wasm_bulk_memory=yes
+ else
+ ac_cv_tool_node_wasm_bulk_memory=no
+ fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_tool_node_wasm_bulk_memory" >&5
+$as_echo "$ac_cv_tool_node_wasm_bulk_memory" >&6; }
+ if test "x$ac_cv_tool_node_wasm_bulk_memory" = xyes; then :
+
+ as_fn_append HOSTRUNNER " --experimental-wasm-bulk-memory"
+
+fi
+
+fi
+ if test "x$host_cpu" = xwasm64; then :
+ as_fn_append HOSTRUNNER " --experimental-wasm-memory64"
fi
;; #(
WASI/*) :
esac
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking HOSTRUNNER" >&5
+$as_echo_n "checking HOSTRUNNER... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $HOSTRUNNER" >&5
$as_echo "$HOSTRUNNER" >&6; }
# LIBRARY_DEPS, LINK_PYTHON_OBJS and LINK_PYTHON_DEPS variable
case $ac_sys_system/$ac_sys_emscripten_target in #(
Emscripten/browser*) :
- LIBRARY_DEPS='$(PY3LIBRARY) $(WASM_STDLIB)' ;; #(
+ LIBRARY_DEPS='$(PY3LIBRARY) $(WASM_STDLIB) python.html python.worker.js' ;; #(
*) :
LIBRARY_DEPS='$(PY3LIBRARY) $(EXPORTSYMS)'
;;
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $PROFILE_TASK" >&5
$as_echo "$PROFILE_TASK" >&6; }
-# Make llvm-relatec checks work on systems where llvm tools are not installed with their
+# Make llvm-related checks work on systems where llvm tools are not installed with their
# normal names in the default $PATH (ie: Ubuntu). They exist under the
# non-suffixed name in their versioned llvm directory.
if test "$Py_LTO" = 'true' ; then
case $CC in
*clang*)
- LDFLAGS_NOLTO="-fno-lto"
+ LDFLAGS_NOLTO="-fno-lto"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -flto=thin" >&5
+$as_echo_n "checking whether C compiler accepts -flto=thin... " >&6; }
+if ${ax_cv_check_cflags___flto_thin+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ ax_check_save_flags=$CFLAGS
+ CFLAGS="$CFLAGS -flto=thin"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ax_cv_check_cflags___flto_thin=yes
+else
+ ax_cv_check_cflags___flto_thin=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ CFLAGS=$ax_check_save_flags
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___flto_thin" >&5
+$as_echo "$ax_cv_check_cflags___flto_thin" >&6; }
+if test "x$ax_cv_check_cflags___flto_thin" = xyes; then :
+ LDFLAGS_NOLTO="-flto=thin"
+else
+ LDFLAGS_NOLTO="-flto"
+fi
+
if test -n "$ac_tool_prefix"; then
# Extract the first word of "${ac_tool_prefix}llvm-ar", so it can be a program name with args.
void* routine(void* p){return NULL;}
-int main(){
+int main(void){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
void* routine(void* p){return NULL;}
-int main(){
+int main(void){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
void* routine(void* p){return NULL;}
-int main(){
+int main(void){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
void* routine(void* p){return NULL;}
-int main(){
+int main(void){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-int main()
+int main(void)
{
char s[16];
int i, *p1, *p2;
LIBEXPAT_CFLAGS="-I\$(srcdir)/Modules/expat"
LIBEXPAT_LDFLAGS="-lm \$(LIBEXPAT_A)"
- LIBEXPAT_INTERNAL="\$(LIBEXPAT_A)"
+ LIBEXPAT_INTERNAL="\$(LIBEXPAT_HEADERS) \$(LIBEXPAT_A)"
fi
LIBMPDEC_CFLAGS="-I\$(srcdir)/Modules/_decimal/libmpdec"
LIBMPDEC_LDFLAGS="-lm \$(LIBMPDEC_A)"
- LIBMPDEC_INTERNAL="\$(LIBMPDEC_A)"
+ LIBMPDEC_INTERNAL="\$(LIBMPDEC_HEADERS) \$(LIBMPDEC_A)"
if test "x$with_pydebug" = xyes; then :
/* end confdefs.h. */
#include <stdio.h>
+#include <stdlib.h>
#include <pthread.h>
void * start_routine (void *arg) { exit (0); }
void *foo(void *parm) {
return NULL;
}
- main() {
+ int main(void) {
pthread_attr_t attr;
pthread_t id;
if (pthread_attr_init(&attr)) return (-1);
#include <sys/stat.h>
#include <unistd.h>
-int main(int argc, char*argv[])
+int main(int argc, char *argv[])
{
if(chflags(argv[0], 0) != 0)
return 1;
#include <sys/stat.h>
#include <unistd.h>
-int main(int argc, char*argv[])
+int main(int argc, char *argv[])
{
if(lchflags(argv[0], 0) != 0)
return 1;
#include <sys/socket.h>
#include <netinet/in.h>
-int main()
+int main(void)
{
int passive, gaierr, inet4 = 0, inet6 = 0;
struct addrinfo hints, *ai, *aitop;
#include <stdlib.h>
#include <math.h>
-int main() {
+int main(void) {
volatile double x, y, z;
/* 1./(1-2**-53) -> 1+2**-52 (correct), 1.0 (double rounding) */
x = 0.99999999999999989; /* 1-2**-53 */
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
-int main()
+int main(void)
{
return (((-1)>>3 == -1) ? 0 : 1);
}
#include <stdlib.h>
#include <unistd.h>
-int main()
+int main(void)
{
int val1 = nice(1);
if (val1 != -1 && val1 == nice(2))
#include <poll.h>
#include <unistd.h>
-int main()
+int main(void)
{
struct pollfd poll_struct = { 42, POLLIN|POLLPRI|POLLOUT, 0 };
int poll_test;
extern char *tzname[];
#endif
-int main()
+int main(void)
{
/* Note that we need to ensure that not only does tzset(3)
do 'something' with localtime, but it works as documented
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
+#include <stddef.h>
#include <stdio.h>
-#include<stdlib.h>
-int main() {
+#include <stdlib.h>
+int main(void) {
size_t len = -1;
const char *str = "text";
len = mbstowcs(NULL, str, 0);
#include <stdlib.h>
#include <string.h>
void foo(void *p, void *q) { memmove(p, q, 19); }
-int main() {
+int main(void) {
char a[32] = "123456789000000000";
foo(&a[9], a);
if (strcmp(a, "123456789123456789000000000") != 0)
);
return r;
}
- int main() {
+ int main(void) {
int p = 8;
if ((foo(&p) ? : p) != 6)
return 1;
#include <stdatomic.h>
atomic_int int_var;
atomic_uintptr_t uintptr_var;
- int main() {
+ int main(void) {
atomic_store_explicit(&int_var, 5, memory_order_relaxed);
atomic_store_explicit(&uintptr_var, 0, memory_order_relaxed);
int loaded_value = atomic_load_explicit(&int_var, memory_order_seq_cst);
int val;
- int main() {
+ int main(void) {
__atomic_store_n(&val, 1, __ATOMIC_SEQ_CST);
(void)__atomic_load_n(&val, __ATOMIC_SEQ_CST);
return 0;
#include <dirent.h>
- int main() {
+ int main(void) {
struct dirent entry;
return entry.d_type == DT_UNKNOWN;
}
/* end confdefs.h. */
+ #include <stddef.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <linux/random.h>
- int main() {
+ int main(void) {
char buffer[1];
const size_t buflen = sizeof(buffer);
const int flags = GRND_NONBLOCK;
/* end confdefs.h. */
+ #include <stddef.h>
#include <sys/random.h>
- int main() {
+ int main(void) {
char buffer[1];
const size_t buflen = sizeof(buffer);
const int flags = 0;
py_cv_module_nis=n/a
py_cv_module_ossaudiodev=n/a
py_cv_module_pwd=n/a
+ py_cv_module_resource=n/a
py_cv_module_spwd=n/a
py_cv_module_syslog=n/a
py_cv_module_=n/a
py_cv_module_fcntl=n/a
- py_cv_module_resource=n/a
py_cv_module_readline=n/a
py_cv_module_termios=n/a
py_cv_module_=n/a
py_cv_module__ctypes_test=n/a
py_cv_module_fcntl=n/a
py_cv_module_mmap=n/a
- py_cv_module_resource=n/a
py_cv_module_termios=n/a
py_cv_module_=n/a
CFLAGS=
fi
+dnl Emscripten SDK and WASI SDK default to wasm32.
+dnl On Emscripten use MEMORY64 setting to build target wasm64-emscripten.
+dnl for wasm64.
+AS_CASE([$host],
+ [wasm64-*-emscripten], [
+ AS_VAR_APPEND([CFLAGS], [" -sMEMORY64=1"])
+ AS_VAR_APPEND([LDFLAGS], [" -sMEMORY64=1"])
+ ],
+)
+
if test "$ac_sys_system" = "Darwin"
then
# Compiler selection on MacOSX is more complicated than
# error unknown wasm32 platform
# endif
#elif defined(__wasm64__)
-# if defined(__EMSCRIPTEN)
+# if defined(__EMSCRIPTEN__)
wasm64-emscripten
# elif defined(__wasi__)
wasm64-wasi
if test "x$enable_profiling" = xyes; then
ac_save_cc="$CC"
CC="$CC -pg"
- AC_LINK_IFELSE([AC_LANG_SOURCE([[int main() { return 0; }]])],
+ AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void) { return 0; }]])],
[],
[enable_profiling=no])
CC="$ac_save_cc"
fi
AC_ARG_VAR([HOSTRUNNER], [Program to run CPython for the host platform])
-AC_MSG_CHECKING([HOSTRUNNER])
if test -z "$HOSTRUNNER"
then
AS_CASE([$ac_sys_system/$ac_sys_emscripten_target],
[Emscripten/node*], [
+ AC_PATH_TOOL([NODE], [node], [node])
+ HOSTRUNNER="$NODE"
# bigint for ctypes c_longlong, c_longdouble
- HOSTRUNNER="node --experimental-wasm-bigint"
+ # no longer available in Node 16
+ AC_CACHE_CHECK([for node --experimental-wasm-bigint], [ac_cv_tool_node_wasm_bigint], [
+ if $NODE -v --experimental-wasm-bigint > /dev/null 2>&1; then
+ ac_cv_tool_node_wasm_bigint=yes
+ else
+ ac_cv_tool_node_wasm_bigint=no
+ fi
+ ])
+ AS_VAR_IF([ac_cv_tool_node_wasm_bigint], [yes], [
+ AS_VAR_APPEND([HOSTRUNNER], [" --experimental-wasm-bigint"])
+ ])
+
AS_VAR_IF([enable_wasm_pthreads], [yes], [
- HOSTRUNNER="$HOSTRUNNER --experimental-wasm-threads --experimental-wasm-bulk-memory"
+ AS_VAR_APPEND([HOSTRUNNER], [" --experimental-wasm-threads"])
+ # no longer available in Node 16
+ AC_CACHE_CHECK([for node --experimental-wasm-bulk-memory], [ac_cv_tool_node_wasm_bulk_memory], [
+ if $NODE -v --experimental-wasm-bulk-memory > /dev/null 2>&1; then
+ ac_cv_tool_node_wasm_bulk_memory=yes
+ else
+ ac_cv_tool_node_wasm_bulk_memory=no
+ fi
+ ])
+ AS_VAR_IF([ac_cv_tool_node_wasm_bulk_memory], [yes], [
+ AS_VAR_APPEND([HOSTRUNNER], [" --experimental-wasm-bulk-memory"])
+ ])
])
+
+ AS_VAR_IF([host_cpu], [wasm64], [AS_VAR_APPEND([HOSTRUNNER], [" --experimental-wasm-memory64"])])
],
dnl TODO: support other WASI runtimes
dnl wasmtime starts the proces with "/" as CWD. For OOT builds add the
)
fi
AC_SUBST([HOSTRUNNER])
+AC_MSG_CHECKING([HOSTRUNNER])
AC_MSG_RESULT([$HOSTRUNNER])
if test -n "$HOSTRUNNER"; then
# LIBRARY_DEPS, LINK_PYTHON_OBJS and LINK_PYTHON_DEPS variable
AS_CASE([$ac_sys_system/$ac_sys_emscripten_target],
- [Emscripten/browser*], [LIBRARY_DEPS='$(PY3LIBRARY) $(WASM_STDLIB)'],
+ [Emscripten/browser*], [LIBRARY_DEPS='$(PY3LIBRARY) $(WASM_STDLIB) python.html python.worker.js'],
[LIBRARY_DEPS='$(PY3LIBRARY) $(EXPORTSYMS)']
)
LINK_PYTHON_DEPS='$(LIBRARY_DEPS)'
fi
AC_MSG_RESULT($PROFILE_TASK)
-# Make llvm-relatec checks work on systems where llvm tools are not installed with their
+# Make llvm-related checks work on systems where llvm tools are not installed with their
# normal names in the default $PATH (ie: Ubuntu). They exist under the
# non-suffixed name in their versioned llvm directory.
if test "$Py_LTO" = 'true' ; then
case $CC in
*clang*)
- dnl flag to disable lto during linking
LDFLAGS_NOLTO="-fno-lto"
+ dnl Clang linker requires -flto in order to link objects with LTO information.
+ dnl Thin LTO is faster and works for object files with full LTO information, too.
+ AX_CHECK_COMPILE_FLAG([-flto=thin],[LDFLAGS_NOLTO="-flto=thin"],[LDFLAGS_NOLTO="-flto"])
AC_SUBST(LLVM_AR)
AC_PATH_TOOL(LLVM_AR, llvm-ar, '', ${llvm_path})
AC_SUBST(LLVM_AR_FOUND)
void* routine(void* p){return NULL;}
-int main(){
+int main(void){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
void* routine(void* p){return NULL;}
-int main(){
+int main(void){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
void* routine(void* p){return NULL;}
-int main(){
+int main(void){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
void* routine(void* p){return NULL;}
-int main(){
+int main(void){
pthread_t p;
if(pthread_create(&p,NULL,routine,NULL)!=0)
return 1;
# check for systems that require aligned memory access
AC_CACHE_CHECK([aligned memory access is required], [ac_cv_aligned_required],
[AC_RUN_IFELSE([AC_LANG_SOURCE([[
-int main()
+int main(void)
{
char s[16];
int i, *p1, *p2;
], [
LIBEXPAT_CFLAGS="-I\$(srcdir)/Modules/expat"
LIBEXPAT_LDFLAGS="-lm \$(LIBEXPAT_A)"
- LIBEXPAT_INTERNAL="\$(LIBEXPAT_A)"
+ LIBEXPAT_INTERNAL="\$(LIBEXPAT_HEADERS) \$(LIBEXPAT_A)"
])
AC_SUBST([LIBEXPAT_CFLAGS])
], [
LIBMPDEC_CFLAGS="-I\$(srcdir)/Modules/_decimal/libmpdec"
LIBMPDEC_LDFLAGS="-lm \$(LIBMPDEC_A)"
- LIBMPDEC_INTERNAL="\$(LIBMPDEC_A)"
+ LIBMPDEC_INTERNAL="\$(LIBMPDEC_HEADERS) \$(LIBMPDEC_A)"
dnl Disable forced inlining in debug builds, see GH-94847
AS_VAR_IF([with_pydebug], [yes], [
AC_MSG_CHECKING([for pthread_create in -lpthread])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <stdio.h>
+#include <stdlib.h>
#include <pthread.h>
void * start_routine (void *arg) { exit (0); }]], [[
void *foo(void *parm) {
return NULL;
}
- main() {
+ int main(void) {
pthread_attr_t attr;
pthread_t id;
if (pthread_attr_init(&attr)) return (-1);
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <sys/stat.h>
#include <unistd.h>
-int main(int argc, char*argv[])
+int main(int argc, char *argv[])
{
if(chflags(argv[0], 0) != 0)
return 1;
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <sys/stat.h>
#include <unistd.h>
-int main(int argc, char*argv[])
+int main(int argc, char *argv[])
{
if(lchflags(argv[0], 0) != 0)
return 1;
#include <sys/socket.h>
#include <netinet/in.h>
-int main()
+int main(void)
{
int passive, gaierr, inet4 = 0, inet6 = 0;
struct addrinfo hints, *ai, *aitop;
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <stdlib.h>
#include <math.h>
-int main() {
+int main(void) {
volatile double x, y, z;
/* 1./(1-2**-53) -> 1+2**-52 (correct), 1.0 (double rounding) */
x = 0.99999999999999989; /* 1-2**-53 */
# or fills with zeros (like the Cray J90, according to Tim Peters).
AC_CACHE_CHECK([whether right shift extends the sign bit], [ac_cv_rshift_extends_sign], [
AC_RUN_IFELSE([AC_LANG_SOURCE([[
-int main()
+int main(void)
{
return (((-1)>>3 == -1) ? 0 : 1);
}
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <stdlib.h>
#include <unistd.h>
-int main()
+int main(void)
{
int val1 = nice(1);
if (val1 != -1 && val1 == nice(2))
#include <poll.h>
#include <unistd.h>
-int main()
+int main(void)
{
struct pollfd poll_struct = { 42, POLLIN|POLLPRI|POLLOUT, 0 };
int poll_test;
extern char *tzname[];
#endif
-int main()
+int main(void)
{
/* Note that we need to ensure that not only does tzset(3)
do 'something' with localtime, but it works as documented
AC_CACHE_CHECK([for broken mbstowcs], [ac_cv_broken_mbstowcs],
AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <stddef.h>
#include <stdio.h>
-#include<stdlib.h>
-int main() {
+#include <stdlib.h>
+int main(void) {
size_t len = -1;
const char *str = "text";
len = mbstowcs(NULL, str, 0);
#include <stdlib.h>
#include <string.h>
void foo(void *p, void *q) { memmove(p, q, 19); }
-int main() {
+int main(void) {
char a[32] = "123456789000000000";
foo(&a[9], a);
if (strcmp(a, "123456789123456789000000000") != 0)
);
return r;
}
- int main() {
+ int main(void) {
int p = 8;
if ((foo(&p) ? : p) != 6)
return 1;
#include <stdatomic.h>
atomic_int int_var;
atomic_uintptr_t uintptr_var;
- int main() {
+ int main(void) {
atomic_store_explicit(&int_var, 5, memory_order_relaxed);
atomic_store_explicit(&uintptr_var, 0, memory_order_relaxed);
int loaded_value = atomic_load_explicit(&int_var, memory_order_seq_cst);
[
AC_LANG_SOURCE([[
int val;
- int main() {
+ int main(void) {
__atomic_store_n(&val, 1, __ATOMIC_SEQ_CST);
(void)__atomic_load_n(&val, __ATOMIC_SEQ_CST);
return 0;
AC_LANG_SOURCE([[
#include <dirent.h>
- int main() {
+ int main(void) {
struct dirent entry;
return entry.d_type == DT_UNKNOWN;
}
AC_LINK_IFELSE(
[
AC_LANG_SOURCE([[
+ #include <stddef.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <linux/random.h>
- int main() {
+ int main(void) {
char buffer[1];
const size_t buflen = sizeof(buffer);
const int flags = GRND_NONBLOCK;
AC_LINK_IFELSE(
[
AC_LANG_SOURCE([[
+ #include <stddef.h>
#include <sys/random.h>
- int main() {
+ int main(void) {
char buffer[1];
const size_t buflen = sizeof(buffer);
const int flags = 0;
dnl curses and tkinter user interface are not available.
dnl dbm and gdbm aren't available, too.
dnl Emscripten and WASI provide only stubs for pwd, grp APIs.
+ dnl resource functions (get/setrusage) are stubs, too.
PY_STDLIB_MOD_SET_NA(
[_curses],
[_curses_panel],
[nis],
[ossaudiodev],
[pwd],
+ [resource],
[spwd],
[syslog],
)
dnl These modules are not particularly useful in browsers.
PY_STDLIB_MOD_SET_NA(
[fcntl],
- [resource],
[readline],
[termios],
)
[_ctypes_test],
[fcntl],
[mmap],
- [resource],
[termios],
)
]
projects / platform / upstream / python3.git / commitdiff