1 # Copyright 2015 gRPC authors.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
15 """A setup module for the GRPC Python package."""
16 from distutils import cygwinccompiler
17 from distutils import extension as _extension
18 from distutils import util
30 from setuptools.command import egg_info
33 from subprocess import PIPE
35 # Redirect the manifest template from MANIFEST.in to PYTHON-MANIFEST.in.
36 egg_info.manifest_maker.template = 'PYTHON-MANIFEST.in'
38 PY3 = sys.version_info.major == 3
39 PYTHON_STEM = os.path.join('src', 'python', 'grpcio')
40 CORE_INCLUDE = ('include', '.',)
41 ADDRESS_SORTING_INCLUDE = (os.path.join('third_party', 'address_sorting', 'include'),)
43 os.path.join('third_party', 'cares'),
44 os.path.join('third_party', 'cares', 'cares'),)
45 if 'darwin' in sys.platform:
46 CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_darwin'),)
47 if 'freebsd' in sys.platform:
48 CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_freebsd'),)
49 if 'linux' in sys.platform:
50 CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_linux'),)
51 if 'openbsd' in sys.platform:
52 CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_openbsd'),)
53 SSL_INCLUDE = (os.path.join('third_party', 'boringssl', 'include'),)
54 UPB_INCLUDE = (os.path.join('third_party', 'upb'),)
55 UPB_GRPC_GENERATED_INCLUDE = (os.path.join('src', 'core', 'ext', 'upb-generated'),)
56 ZLIB_INCLUDE = (os.path.join('third_party', 'zlib'),)
57 README = os.path.join(PYTHON_STEM, 'README.rst')
59 # Ensure we're in the proper directory whether or not we're being used by pip.
60 os.chdir(os.path.dirname(os.path.abspath(__file__)))
61 sys.path.insert(0, os.path.abspath(PYTHON_STEM))
63 # Break import-style to ensure we can actually find our in-repo dependencies.
64 import _parallel_compile_patch
67 import grpc_core_dependencies
70 _parallel_compile_patch.monkeypatch_compile_maybe()
71 _spawn_patch.monkeypatch_spawn()
73 LICENSE = 'Apache License 2.0'
76 'Development Status :: 5 - Production/Stable',
77 'Programming Language :: Python',
78 'Programming Language :: Python :: 2',
79 'Programming Language :: Python :: 2.7',
80 'Programming Language :: Python :: 3',
81 'Programming Language :: Python :: 3.4',
82 'Programming Language :: Python :: 3.5',
83 'Programming Language :: Python :: 3.6',
84 'Programming Language :: Python :: 3.7',
85 'Programming Language :: Python :: 3.8',
86 'License :: OSI Approved :: Apache Software License',
89 # Environment variable to determine whether or not the Cython extension should
90 # *use* Cython or use the generated C files. Note that this requires the C files
91 # to have been generated by building first *with* Cython support. Even if this
92 # is set to false, if the script detects that the generated `.c` file isn't
93 # present, then it will still attempt to use Cython.
94 BUILD_WITH_CYTHON = os.environ.get('GRPC_PYTHON_BUILD_WITH_CYTHON', False)
97 # Export this variable to use the system installation of openssl. You need to
98 # have the header files installed (in /usr/include/openssl) and during
99 # runtime, the shared library must be installed
100 BUILD_WITH_SYSTEM_OPENSSL = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_OPENSSL',
103 # Export this variable to use the system installation of zlib. You need to
104 # have the header files installed (in /usr/include/) and during
105 # runtime, the shared library must be installed
106 BUILD_WITH_SYSTEM_ZLIB = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_ZLIB',
109 # Export this variable to use the system installation of cares. You need to
110 # have the header files installed (in /usr/include/) and during
111 # runtime, the shared library must be installed
112 BUILD_WITH_SYSTEM_CARES = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_CARES',
115 # For local development use only: This skips building gRPC Core and its
116 # dependencies, including protobuf and boringssl. This allows "incremental"
117 # compilation by first building gRPC Core using make, then building only the
118 # Python/Cython layers here.
120 # Note that this requires libboringssl.a in the libs/{dbg,opt}/ directory, which
121 # may require configuring make to not use the system openssl implementation:
123 # make HAS_SYSTEM_OPENSSL_ALPN=0
125 # TODO(ericgribkoff) Respect the BUILD_WITH_SYSTEM_* flags alongside this option
126 USE_PREBUILT_GRPC_CORE = os.environ.get(
127 'GRPC_PYTHON_USE_PREBUILT_GRPC_CORE', False)
130 # If this environmental variable is set, GRPC will not try to be compatible with
131 # libc versions old than the one it was compiled against.
132 DISABLE_LIBC_COMPATIBILITY = os.environ.get('GRPC_PYTHON_DISABLE_LIBC_COMPATIBILITY', False)
134 # Environment variable to determine whether or not to enable coverage analysis
136 ENABLE_CYTHON_TRACING = os.environ.get(
137 'GRPC_PYTHON_ENABLE_CYTHON_TRACING', False)
139 # Environment variable specifying whether or not there's interest in setting up
140 # documentation building.
141 ENABLE_DOCUMENTATION_BUILD = os.environ.get(
142 'GRPC_PYTHON_ENABLE_DOCUMENTATION_BUILD', False)
144 def check_linker_need_libatomic():
145 """Test if linker on system needs libatomic."""
146 code_test = (b'#include <atomic>\n' +
147 b'int main() { return std::atomic<int64_t>{}; }')
148 cc_test = subprocess.Popen(['cc', '-x', 'c++', '-std=c++11', '-'],
152 cc_test.communicate(input=code_test)
153 return cc_test.returncode != 0
155 # There are some situations (like on Windows) where CC, CFLAGS, and LDFLAGS are
156 # entirely ignored/dropped/forgotten by distutils and its Cygwin/MinGW support.
157 # We use these environment variables to thus get around that without locking
158 # ourselves in w.r.t. the multitude of operating systems this ought to build on.
159 # We can also use these variables as a way to inject environment-specific
160 # compiler/linker flags. We assume GCC-like compilers and/or MinGW as a
161 # reasonable default.
162 EXTRA_ENV_COMPILE_ARGS = os.environ.get('GRPC_PYTHON_CFLAGS', None)
163 EXTRA_ENV_LINK_ARGS = os.environ.get('GRPC_PYTHON_LDFLAGS', None)
164 if EXTRA_ENV_COMPILE_ARGS is None:
165 EXTRA_ENV_COMPILE_ARGS = ' -std=c++11'
166 if 'win32' in sys.platform:
167 if sys.version_info < (3, 5):
168 EXTRA_ENV_COMPILE_ARGS += ' -D_hypot=hypot'
169 # We use define flags here and don't directly add to DEFINE_MACROS below to
170 # ensure that the expert user/builder has a way of turning it off (via the
171 # envvars) without adding yet more GRPC-specific envvars.
172 # See https://sourceforge.net/p/mingw-w64/bugs/363/
173 if '32' in platform.architecture()[0]:
174 EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime32 -D_timeb=__timeb32 -D_ftime_s=_ftime32_s'
176 EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime64 -D_timeb=__timeb64'
178 # We need to statically link the C++ Runtime, only the C runtime is
179 # available dynamically
180 EXTRA_ENV_COMPILE_ARGS += ' /MT'
181 elif "linux" in sys.platform:
182 EXTRA_ENV_COMPILE_ARGS += ' -std=gnu99 -fvisibility=hidden -fno-wrapv -fno-exceptions'
183 elif "darwin" in sys.platform:
184 EXTRA_ENV_COMPILE_ARGS += ' -stdlib=libc++ -fvisibility=hidden -fno-wrapv -fno-exceptions'
186 if EXTRA_ENV_LINK_ARGS is None:
187 EXTRA_ENV_LINK_ARGS = ''
188 if "linux" in sys.platform or "darwin" in sys.platform:
189 EXTRA_ENV_LINK_ARGS += ' -lpthread'
190 if check_linker_need_libatomic():
191 EXTRA_ENV_LINK_ARGS += ' -latomic'
192 elif "win32" in sys.platform and sys.version_info < (3, 5):
193 msvcr = cygwinccompiler.get_msvcr()[0]
194 # TODO(atash) sift through the GCC specs to see if libstdc++ can have any
195 # influence on the linkage outcome on MinGW for non-C++ programs.
196 EXTRA_ENV_LINK_ARGS += (
197 ' -static-libgcc -static-libstdc++ -mcrtdll={msvcr}'
198 ' -static'.format(msvcr=msvcr))
199 if "linux" in sys.platform:
200 EXTRA_ENV_LINK_ARGS += ' -Wl,-wrap,memcpy -static-libgcc'
202 EXTRA_COMPILE_ARGS = shlex.split(EXTRA_ENV_COMPILE_ARGS)
203 EXTRA_LINK_ARGS = shlex.split(EXTRA_ENV_LINK_ARGS)
205 CYTHON_EXTENSION_PACKAGE_NAMES = ()
207 CYTHON_EXTENSION_MODULE_NAMES = ('grpc._cython.cygrpc',)
209 CYTHON_HELPER_C_FILES = ()
211 CORE_C_FILES = tuple(grpc_core_dependencies.CORE_SOURCE_FILES)
212 if "win32" in sys.platform:
213 CORE_C_FILES = filter(lambda x: 'third_party/cares' not in x, CORE_C_FILES)
215 if BUILD_WITH_SYSTEM_OPENSSL:
216 CORE_C_FILES = filter(lambda x: 'third_party/boringssl' not in x, CORE_C_FILES)
217 CORE_C_FILES = filter(lambda x: 'src/boringssl' not in x, CORE_C_FILES)
218 SSL_INCLUDE = (os.path.join('/usr', 'include', 'openssl'),)
220 if BUILD_WITH_SYSTEM_ZLIB:
221 CORE_C_FILES = filter(lambda x: 'third_party/zlib' not in x, CORE_C_FILES)
222 ZLIB_INCLUDE = (os.path.join('/usr', 'include'),)
224 if BUILD_WITH_SYSTEM_CARES:
225 CORE_C_FILES = filter(lambda x: 'third_party/cares' not in x, CORE_C_FILES)
226 CARES_INCLUDE = (os.path.join('/usr', 'include'),)
228 EXTENSION_INCLUDE_DIRECTORIES = (
231 ADDRESS_SORTING_INCLUDE +
235 UPB_GRPC_GENERATED_INCLUDE +
238 EXTENSION_LIBRARIES = ()
239 if "linux" in sys.platform:
240 EXTENSION_LIBRARIES += ('rt',)
241 if not "win32" in sys.platform:
242 EXTENSION_LIBRARIES += ('m',)
243 if "win32" in sys.platform:
244 EXTENSION_LIBRARIES += ('advapi32', 'ws2_32',)
245 if BUILD_WITH_SYSTEM_OPENSSL:
246 EXTENSION_LIBRARIES += ('ssl', 'crypto',)
247 if BUILD_WITH_SYSTEM_ZLIB:
248 EXTENSION_LIBRARIES += ('z',)
249 if BUILD_WITH_SYSTEM_CARES:
250 EXTENSION_LIBRARIES += ('cares',)
252 DEFINE_MACROS = (('OPENSSL_NO_ASM', 1), ('_WIN32_WINNT', 0x600))
253 if not DISABLE_LIBC_COMPATIBILITY:
254 DEFINE_MACROS += (('GPR_BACKWARDS_COMPATIBILITY_MODE', 1),)
255 if "win32" in sys.platform:
256 # TODO(zyc): Re-enable c-ares on x64 and x86 windows after fixing the
257 # ares_library_init compilation issue
258 DEFINE_MACROS += (('WIN32_LEAN_AND_MEAN', 1), ('CARES_STATICLIB', 1),
259 ('GRPC_ARES', 0), ('NTDDI_VERSION', 0x06000000),
261 if '64bit' in platform.architecture()[0]:
262 DEFINE_MACROS += (('MS_WIN64', 1),)
263 elif sys.version_info >= (3, 5):
264 # For some reason, this is needed to get access to inet_pton/inet_ntop
265 # on msvc, but only for 32 bits
266 DEFINE_MACROS += (('NTDDI_VERSION', 0x06000000),)
268 DEFINE_MACROS += (('HAVE_CONFIG_H', 1), ('GRPC_ENABLE_FORK_SUPPORT', 1),)
270 LDFLAGS = tuple(EXTRA_LINK_ARGS)
271 CFLAGS = tuple(EXTRA_COMPILE_ARGS)
272 if "linux" in sys.platform or "darwin" in sys.platform:
273 pymodinit_type = 'PyObject*' if PY3 else 'void'
274 pymodinit = 'extern "C" __attribute__((visibility ("default"))) {}'.format(pymodinit_type)
275 DEFINE_MACROS += (('PyMODINIT_FUNC', pymodinit),)
276 DEFINE_MACROS += (('GRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK', 1),)
278 # By default, Python3 distutils enforces compatibility of
279 # c plugins (.so files) with the OSX version Python3 was built with.
280 # For Python3.4, this is OSX 10.6, but we need Thread Local Support (__thread)
281 if 'darwin' in sys.platform and PY3:
282 mac_target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
283 if mac_target and (pkg_resources.parse_version(mac_target) <
284 pkg_resources.parse_version('10.7.0')):
285 os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.7'
286 os.environ['_PYTHON_HOST_PLATFORM'] = re.sub(
287 r'macosx-[0-9]+\.[0-9]+-(.+)',
291 def cython_extensions_and_necessity():
292 cython_module_files = [os.path.join(PYTHON_STEM,
293 name.replace('.', '/') + '.pyx')
294 for name in CYTHON_EXTENSION_MODULE_NAMES]
295 config = os.environ.get('CONFIG', 'opt')
296 prefix = 'libs/' + config + '/'
297 if USE_PREBUILT_GRPC_CORE:
298 extra_objects = [prefix + 'libares.a',
299 prefix + 'libboringssl.a',
301 prefix + 'libgrpc.a']
304 core_c_files = list(CORE_C_FILES)
307 _extension.Extension(
309 sources=[module_file] + list(CYTHON_HELPER_C_FILES) + core_c_files,
310 include_dirs=list(EXTENSION_INCLUDE_DIRECTORIES),
311 libraries=list(EXTENSION_LIBRARIES),
312 define_macros=list(DEFINE_MACROS),
313 extra_objects=extra_objects,
314 extra_compile_args=list(CFLAGS),
315 extra_link_args=list(LDFLAGS),
316 ) for (module_name, module_file) in zip(list(CYTHON_EXTENSION_MODULE_NAMES), cython_module_files)
318 need_cython = BUILD_WITH_CYTHON
319 if not BUILD_WITH_CYTHON:
320 need_cython = need_cython or not commands.check_and_update_cythonization(extensions)
321 return commands.try_cythonize(extensions, linetracing=ENABLE_CYTHON_TRACING, mandatory=BUILD_WITH_CYTHON), need_cython
323 CYTHON_EXTENSION_MODULES, need_cython = cython_extensions_and_necessity()
325 PACKAGE_DIRECTORIES = {
331 "futures>=2.2.0; python_version<'3.2'",
332 "enum34>=1.0.4; python_version<'3.4'",
335 SETUP_REQUIRES = INSTALL_REQUIRES + (
338 ) if ENABLE_DOCUMENTATION_BUILD else ()
343 if BUILD_WITH_CYTHON:
345 "You requested a Cython build via GRPC_PYTHON_BUILD_WITH_CYTHON, "
346 "but do not have Cython installed. We won't stop you from using "
347 "other commands, but the extension files will fail to build.\n")
350 'We could not find Cython. Setup may take 10-20 minutes.\n')
351 SETUP_REQUIRES += ('cython>=0.23',)
354 'doc': commands.SphinxDocumentation,
355 'build_project_metadata': commands.BuildProjectMetadata,
356 'build_py': commands.BuildPy,
357 'build_ext': commands.BuildExt,
358 'gather': commands.Gather,
361 # Ensure that package data is copied over before any commands have been run:
362 credentials_dir = os.path.join(PYTHON_STEM, 'grpc', '_cython', '_credentials')
364 os.mkdir(credentials_dir)
367 shutil.copyfile(os.path.join('etc', 'roots.pem'),
368 os.path.join(credentials_dir, 'roots.pem'))
371 # Binaries that may or may not be present in the final installation, but are
372 # mentioned here for completeness.
374 '_credentials/roots.pem',
375 '_windows/grpc_c.32.python',
376 '_windows/grpc_c.64.python',
379 PACKAGES = setuptools.find_packages(PYTHON_STEM)
383 version=grpc_version.VERSION,
384 description='HTTP/2-based RPC framework',
385 author='The gRPC Authors',
386 author_email='grpc-io@googlegroups.com',
387 url='https://grpc.io',
389 classifiers=CLASSIFIERS,
390 long_description=open(README).read(),
391 ext_modules=CYTHON_EXTENSION_MODULES,
392 packages=list(PACKAGES),
393 package_dir=PACKAGE_DIRECTORIES,
394 package_data=PACKAGE_DATA,
395 install_requires=INSTALL_REQUIRES,
396 setup_requires=SETUP_REQUIRES,
397 cmdclass=COMMAND_CLASS,