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
32 # Redirect the manifest template from MANIFEST.in to PYTHON-MANIFEST.in.
33 egg_info.manifest_maker.template = 'PYTHON-MANIFEST.in'
35 PY3 = sys.version_info.major == 3
36 PYTHON_STEM = os.path.join('src', 'python', 'grpcio')
37 CORE_INCLUDE = ('include', '.',)
38 SSL_INCLUDE = (os.path.join('third_party', 'boringssl', 'include'),)
39 ZLIB_INCLUDE = (os.path.join('third_party', 'zlib'),)
40 NANOPB_INCLUDE = (os.path.join('third_party', 'nanopb'),)
42 os.path.join('third_party', 'cares'),
43 os.path.join('third_party', 'cares', 'cares'),)
44 if 'darwin' in sys.platform:
45 CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_darwin'),)
46 if 'freebsd' in sys.platform:
47 CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_freebsd'),)
48 if 'linux' in sys.platform:
49 CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_linux'),)
50 if 'openbsd' in sys.platform:
51 CARES_INCLUDE += (os.path.join('third_party', 'cares', 'config_openbsd'),)
52 ADDRESS_SORTING_INCLUDE = (os.path.join('third_party', 'address_sorting', 'include'),)
53 README = os.path.join(PYTHON_STEM, 'README.rst')
55 # Ensure we're in the proper directory whether or not we're being used by pip.
56 os.chdir(os.path.dirname(os.path.abspath(__file__)))
57 sys.path.insert(0, os.path.abspath(PYTHON_STEM))
59 # Break import-style to ensure we can actually find our in-repo dependencies.
60 import _parallel_compile_patch
63 import grpc_core_dependencies
66 _parallel_compile_patch.monkeypatch_compile_maybe()
67 _spawn_patch.monkeypatch_spawn()
69 LICENSE = 'Apache License 2.0'
72 'Development Status :: 5 - Production/Stable',
73 'Programming Language :: Python',
74 'Programming Language :: Python :: 2',
75 'Programming Language :: Python :: 2.7',
76 'Programming Language :: Python :: 3',
77 'Programming Language :: Python :: 3.4',
78 'Programming Language :: Python :: 3.5',
79 'Programming Language :: Python :: 3.6',
80 'License :: OSI Approved :: Apache Software License',
83 # Environment variable to determine whether or not the Cython extension should
84 # *use* Cython or use the generated C files. Note that this requires the C files
85 # to have been generated by building first *with* Cython support. Even if this
86 # is set to false, if the script detects that the generated `.c` file isn't
87 # present, then it will still attempt to use Cython.
88 BUILD_WITH_CYTHON = os.environ.get('GRPC_PYTHON_BUILD_WITH_CYTHON', False)
91 # Export this variable to use the system installation of openssl. You need to
92 # have the header files installed (in /usr/include/openssl) and during
93 # runtime, the shared library must be installed
94 BUILD_WITH_SYSTEM_OPENSSL = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_OPENSSL',
97 # Export this variable to use the system installation of zlib. You need to
98 # have the header files installed (in /usr/include/) and during
99 # runtime, the shared library must be installed
100 BUILD_WITH_SYSTEM_ZLIB = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_ZLIB',
103 # Export this variable to use the system installation of cares. 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_CARES = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_CARES',
109 # For local development use only: This skips building gRPC Core and its
110 # dependencies, including protobuf and boringssl. This allows "incremental"
111 # compilation by first building gRPC Core using make, then building only the
112 # Python/Cython layers here.
114 # Note that this requires libboringssl.a in the libs/{dbg,opt}/ directory, which
115 # may require configuring make to not use the system openssl implementation:
117 # make HAS_SYSTEM_OPENSSL_ALPN=0
119 # TODO(ericgribkoff) Respect the BUILD_WITH_SYSTEM_* flags alongside this option
120 USE_PREBUILT_GRPC_CORE = os.environ.get(
121 'GRPC_PYTHON_USE_PREBUILT_GRPC_CORE', False)
124 # If this environmental variable is set, GRPC will not try to be compatible with
125 # libc versions old than the one it was compiled against.
126 DISABLE_LIBC_COMPATIBILITY = os.environ.get('GRPC_PYTHON_DISABLE_LIBC_COMPATIBILITY', False)
128 # Environment variable to determine whether or not to enable coverage analysis
130 ENABLE_CYTHON_TRACING = os.environ.get(
131 'GRPC_PYTHON_ENABLE_CYTHON_TRACING', False)
133 # Environment variable specifying whether or not there's interest in setting up
134 # documentation building.
135 ENABLE_DOCUMENTATION_BUILD = os.environ.get(
136 'GRPC_PYTHON_ENABLE_DOCUMENTATION_BUILD', False)
138 # There are some situations (like on Windows) where CC, CFLAGS, and LDFLAGS are
139 # entirely ignored/dropped/forgotten by distutils and its Cygwin/MinGW support.
140 # We use these environment variables to thus get around that without locking
141 # ourselves in w.r.t. the multitude of operating systems this ought to build on.
142 # We can also use these variables as a way to inject environment-specific
143 # compiler/linker flags. We assume GCC-like compilers and/or MinGW as a
144 # reasonable default.
145 EXTRA_ENV_COMPILE_ARGS = os.environ.get('GRPC_PYTHON_CFLAGS', None)
146 EXTRA_ENV_LINK_ARGS = os.environ.get('GRPC_PYTHON_LDFLAGS', None)
147 if EXTRA_ENV_COMPILE_ARGS is None:
148 EXTRA_ENV_COMPILE_ARGS = ' -std=c++11'
149 if 'win32' in sys.platform and sys.version_info < (3, 5):
150 EXTRA_ENV_COMPILE_ARGS += ' -D_hypot=hypot'
151 # We use define flags here and don't directly add to DEFINE_MACROS below to
152 # ensure that the expert user/builder has a way of turning it off (via the
153 # envvars) without adding yet more GRPC-specific envvars.
154 # See https://sourceforge.net/p/mingw-w64/bugs/363/
155 if '32' in platform.architecture()[0]:
156 EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime32 -D_timeb=__timeb32 -D_ftime_s=_ftime32_s'
158 EXTRA_ENV_COMPILE_ARGS += ' -D_ftime=_ftime64 -D_timeb=__timeb64'
159 elif "linux" in sys.platform:
160 EXTRA_ENV_COMPILE_ARGS += ' -std=gnu99 -fvisibility=hidden -fno-wrapv -fno-exceptions'
161 elif "darwin" in sys.platform:
162 EXTRA_ENV_COMPILE_ARGS += ' -fvisibility=hidden -fno-wrapv -fno-exceptions'
163 EXTRA_ENV_COMPILE_ARGS += ' -DPB_FIELD_32BIT'
165 if EXTRA_ENV_LINK_ARGS is None:
166 EXTRA_ENV_LINK_ARGS = ''
167 if "linux" in sys.platform or "darwin" in sys.platform:
168 EXTRA_ENV_LINK_ARGS += ' -lpthread'
169 elif "win32" in sys.platform and sys.version_info < (3, 5):
170 msvcr = cygwinccompiler.get_msvcr()[0]
171 # TODO(atash) sift through the GCC specs to see if libstdc++ can have any
172 # influence on the linkage outcome on MinGW for non-C++ programs.
173 EXTRA_ENV_LINK_ARGS += (
174 ' -static-libgcc -static-libstdc++ -mcrtdll={msvcr} '
175 '-static'.format(msvcr=msvcr))
176 if "linux" in sys.platform:
177 EXTRA_ENV_LINK_ARGS += ' -Wl,-wrap,memcpy -static-libgcc'
179 EXTRA_COMPILE_ARGS = shlex.split(EXTRA_ENV_COMPILE_ARGS)
180 EXTRA_LINK_ARGS = shlex.split(EXTRA_ENV_LINK_ARGS)
182 CYTHON_EXTENSION_PACKAGE_NAMES = ()
184 CYTHON_EXTENSION_MODULE_NAMES = ('grpc._cython.cygrpc',)
186 CYTHON_HELPER_C_FILES = ()
188 CORE_C_FILES = tuple(grpc_core_dependencies.CORE_SOURCE_FILES)
189 if "win32" in sys.platform:
190 CORE_C_FILES = filter(lambda x: 'third_party/cares' not in x, CORE_C_FILES)
192 if BUILD_WITH_SYSTEM_OPENSSL:
193 CORE_C_FILES = filter(lambda x: 'third_party/boringssl' not in x, CORE_C_FILES)
194 CORE_C_FILES = filter(lambda x: 'src/boringssl' not in x, CORE_C_FILES)
195 SSL_INCLUDE = (os.path.join('/usr', 'include', 'openssl'),)
197 if BUILD_WITH_SYSTEM_ZLIB:
198 CORE_C_FILES = filter(lambda x: 'third_party/zlib' not in x, CORE_C_FILES)
199 ZLIB_INCLUDE = (os.path.join('/usr', 'include'),)
201 if BUILD_WITH_SYSTEM_CARES:
202 CORE_C_FILES = filter(lambda x: 'third_party/cares' not in x, CORE_C_FILES)
203 CARES_INCLUDE = (os.path.join('/usr', 'include'),)
205 EXTENSION_INCLUDE_DIRECTORIES = (
206 (PYTHON_STEM,) + CORE_INCLUDE + SSL_INCLUDE + ZLIB_INCLUDE +
207 NANOPB_INCLUDE + CARES_INCLUDE + ADDRESS_SORTING_INCLUDE)
209 EXTENSION_LIBRARIES = ()
210 if "linux" in sys.platform:
211 EXTENSION_LIBRARIES += ('rt',)
212 if not "win32" in sys.platform:
213 EXTENSION_LIBRARIES += ('m',)
214 if "win32" in sys.platform:
215 EXTENSION_LIBRARIES += ('advapi32', 'ws2_32',)
216 if BUILD_WITH_SYSTEM_OPENSSL:
217 EXTENSION_LIBRARIES += ('ssl', 'crypto',)
218 if BUILD_WITH_SYSTEM_ZLIB:
219 EXTENSION_LIBRARIES += ('z',)
220 if BUILD_WITH_SYSTEM_CARES:
221 EXTENSION_LIBRARIES += ('cares',)
223 DEFINE_MACROS = (('OPENSSL_NO_ASM', 1), ('_WIN32_WINNT', 0x600))
224 if not DISABLE_LIBC_COMPATIBILITY:
225 DEFINE_MACROS += (('GPR_BACKWARDS_COMPATIBILITY_MODE', 1),)
226 if "win32" in sys.platform:
227 # TODO(zyc): Re-enable c-ares on x64 and x86 windows after fixing the
228 # ares_library_init compilation issue
229 DEFINE_MACROS += (('WIN32_LEAN_AND_MEAN', 1), ('CARES_STATICLIB', 1),
230 ('GRPC_ARES', 0), ('NTDDI_VERSION', 0x06000000),
232 if '64bit' in platform.architecture()[0]:
233 DEFINE_MACROS += (('MS_WIN64', 1),)
234 elif sys.version_info >= (3, 5):
235 # For some reason, this is needed to get access to inet_pton/inet_ntop
236 # on msvc, but only for 32 bits
237 DEFINE_MACROS += (('NTDDI_VERSION', 0x06000000),)
239 DEFINE_MACROS += (('HAVE_CONFIG_H', 1), ('GRPC_ENABLE_FORK_SUPPORT', 1),)
241 LDFLAGS = tuple(EXTRA_LINK_ARGS)
242 CFLAGS = tuple(EXTRA_COMPILE_ARGS)
243 if "linux" in sys.platform or "darwin" in sys.platform:
244 pymodinit_type = 'PyObject*' if PY3 else 'void'
245 pymodinit = 'extern "C" __attribute__((visibility ("default"))) {}'.format(pymodinit_type)
246 DEFINE_MACROS += (('PyMODINIT_FUNC', pymodinit),)
247 DEFINE_MACROS += (('GRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK', 1),)
249 # By default, Python3 distutils enforces compatibility of
250 # c plugins (.so files) with the OSX version Python3 was built with.
251 # For Python3.4, this is OSX 10.6, but we need Thread Local Support (__thread)
252 if 'darwin' in sys.platform and PY3:
253 mac_target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
254 if mac_target and (pkg_resources.parse_version(mac_target) <
255 pkg_resources.parse_version('10.7.0')):
256 os.environ['MACOSX_DEPLOYMENT_TARGET'] = '10.7'
257 os.environ['_PYTHON_HOST_PLATFORM'] = re.sub(
258 r'macosx-[0-9]+\.[0-9]+-(.+)',
262 def cython_extensions_and_necessity():
263 cython_module_files = [os.path.join(PYTHON_STEM,
264 name.replace('.', '/') + '.pyx')
265 for name in CYTHON_EXTENSION_MODULE_NAMES]
266 config = os.environ.get('CONFIG', 'opt')
267 prefix = 'libs/' + config + '/'
268 if "darwin" in sys.platform or USE_PREBUILT_GRPC_CORE:
269 extra_objects = [prefix + 'libares.a',
270 prefix + 'libboringssl.a',
272 prefix + 'libgrpc.a']
275 core_c_files = list(CORE_C_FILES)
278 _extension.Extension(
280 sources=[module_file] + list(CYTHON_HELPER_C_FILES) + core_c_files,
281 include_dirs=list(EXTENSION_INCLUDE_DIRECTORIES),
282 libraries=list(EXTENSION_LIBRARIES),
283 define_macros=list(DEFINE_MACROS),
284 extra_objects=extra_objects,
285 extra_compile_args=list(CFLAGS),
286 extra_link_args=list(LDFLAGS),
287 ) for (module_name, module_file) in zip(list(CYTHON_EXTENSION_MODULE_NAMES), cython_module_files)
289 need_cython = BUILD_WITH_CYTHON
290 if not BUILD_WITH_CYTHON:
291 need_cython = need_cython or not commands.check_and_update_cythonization(extensions)
292 return commands.try_cythonize(extensions, linetracing=ENABLE_CYTHON_TRACING, mandatory=BUILD_WITH_CYTHON), need_cython
294 CYTHON_EXTENSION_MODULES, need_cython = cython_extensions_and_necessity()
296 PACKAGE_DIRECTORIES = {
305 INSTALL_REQUIRES += ('futures>=2.2.0', 'enum34>=1.0.4')
307 SETUP_REQUIRES = INSTALL_REQUIRES + (
310 ) if ENABLE_DOCUMENTATION_BUILD else ()
315 if BUILD_WITH_CYTHON:
317 "You requested a Cython build via GRPC_PYTHON_BUILD_WITH_CYTHON, "
318 "but do not have Cython installed. We won't stop you from using "
319 "other commands, but the extension files will fail to build.\n")
322 'We could not find Cython. Setup may take 10-20 minutes.\n')
323 SETUP_REQUIRES += ('cython>=0.23',)
326 'doc': commands.SphinxDocumentation,
327 'build_project_metadata': commands.BuildProjectMetadata,
328 'build_py': commands.BuildPy,
329 'build_ext': commands.BuildExt,
330 'gather': commands.Gather,
333 # Ensure that package data is copied over before any commands have been run:
334 credentials_dir = os.path.join(PYTHON_STEM, 'grpc', '_cython', '_credentials')
336 os.mkdir(credentials_dir)
339 shutil.copyfile(os.path.join('etc', 'roots.pem'),
340 os.path.join(credentials_dir, 'roots.pem'))
343 # Binaries that may or may not be present in the final installation, but are
344 # mentioned here for completeness.
346 '_credentials/roots.pem',
347 '_windows/grpc_c.32.python',
348 '_windows/grpc_c.64.python',
351 PACKAGES = setuptools.find_packages(PYTHON_STEM)
355 version=grpc_version.VERSION,
356 description='HTTP/2-based RPC framework',
357 author='The gRPC Authors',
358 author_email='grpc-io@googlegroups.com',
359 url='https://grpc.io',
361 classifiers=CLASSIFIERS,
362 long_description=open(README).read(),
363 ext_modules=CYTHON_EXTENSION_MODULES,
364 packages=list(PACKAGES),
365 package_dir=PACKAGE_DIRECTORIES,
366 package_data=PACKAGE_DATA,
367 install_requires=INSTALL_REQUIRES,
368 setup_requires=SETUP_REQUIRES,
369 cmdclass=COMMAND_CLASS,