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from __future__ import annotations

import os

import sys

import warnings

# Hack to silence atexit traceback in some Python versions

try:

import multiprocessing # noqa: F401

except ImportError:

pass

from setuptools import setup

from setuptools.command.build_ext import build_ext

from setuptools.extension import Extension

class custom_build_ext(build_ext):

"""Allow C extension building to fail.

The C extension speeds up BSON encoding, but is not essential.

"""

warning_message = """

********************************************************************

WARNING: %s could not

be compiled. No C extensions are essential for PyMongo to run,

although they do result in significant speed improvements.

Please see the installation docs for solutions to build issues:

https://pymongo.readthedocs.io/en/stable/installation.html

Here are some hints for popular operating systems:

If you are seeing this message on Linux you probably need to

install GCC and/or the Python development package for your

version of Python.

Debian and Ubuntu users should issue the following command:

$ sudo apt-get install build-essential python-dev

Users of Red Hat based distributions (RHEL, CentOS, Amazon Linux,

Oracle Linux, Fedora, etc.) should issue the following command:

$ sudo yum install gcc python-devel

If you are seeing this message on Microsoft Windows please install

PyMongo using pip. Modern versions of pip will install PyMongo

from binary wheels available on pypi. If you must install from

source read the documentation here:

https://pymongo.readthedocs.io/en/stable/installation.html#installing-from-source-on-windows

If you are seeing this message on macOS / OSX please install PyMongo

using pip. Modern versions of pip will install PyMongo from binary

wheels available on pypi. If wheels are not available for your version

of macOS / OSX, or you must install from source read the documentation

here:

https://pymongo.readthedocs.io/en/stable/installation.html#osx

********************************************************************

"""

def run(self):

try:

build_ext.run(self)

except Exception:

if os.environ.get("PYMONGO_C_EXT_MUST_BUILD"):

raise

e = sys.exc_info()[1]

sys.stdout.write(f"{e!s}\n")

warnings.warn(

self.warning_message

% (

"Extension modules",

"There was an issue with your platform configuration - see above.",

stacklevel=2,

)

def build_extension(self, ext):

# "ProgramFiles(x86)" is not a valid environment variable in Cygwin but is needed for

# the MSVCCompiler in distutils.

if os.name == "nt":

if "ProgramFiles" in os.environ and "ProgramFiles(x86)" not in os.environ:

os.environ["ProgramFiles(x86)"] = os.environ["ProgramFiles"] + " (x86)"

name = ext.name

try:

build_ext.build_extension(self, ext)

except Exception:

if os.environ.get("PYMONGO_C_EXT_MUST_BUILD"):

raise

e = sys.exc_info()[1]

sys.stdout.write(f"{e!s}\n")

warnings.warn(

self.warning_message

% (

"The %s extension module" % (name,), # noqa: UP031

"The output above this warning shows how the compilation failed.",

stacklevel=2,

)

ext_modules = [

Extension(

"bson._cbson",

include_dirs=["bson"],

sources=["bson/_cbsonmodule.c", "bson/time64.c", "bson/buffer.c"],

Extension(

"pymongo._cmessage",

include_dirs=["bson"],

sources=[

"pymongo/_cmessagemodule.c",

"bson/_cbsonmodule.c",

"bson/time64.c",

"bson/buffer.c",

]

if "--no_ext" in sys.argv or os.environ.get("NO_EXT"):

try:

sys.argv.remove("--no_ext")

except ValueError:

pass

ext_modules = []

elif (

sys.platform.startswith("java")

or sys.platform == "cli"

or sys.implementation.name in ("pypy", "graalpy")

sys.stdout.write(

"""

*****************************************************\n

The optional C extensions are currently not supported\n

by this python implementation.\n

*****************************************************\n

"""

)

ext_modules = []

setup(

cmdclass={"build_ext": custom_build_ext},

ext_modules=ext_modules,

packages=["bson", "pymongo", "gridfs"],

) # type:ignore

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