Question

我正在创建一个带有c ++扩展名的python包。我试图用setuptools做这个，因为这似乎是首选的解决方案。鉴于它允许setup_requires，install_requires，我同意并将它用于我的python包。但是，当我有一个c ++扩展模块时，我无法让它工作。然后我求助于distutils.core让它发挥作用。我想知道如何使用setuptools让它工作。我的设置脚本看起来像

from setuptools import setup
import shutil
import os

# folder where .so is being build by cpp compilation 
so_src = os.path.join(dir, 'cpp/build/')
# folder where .so should live in python package
so_des = os.path.join(dir, 'package_py/cpp/')

# extension module
lib_files = ['cpp_py.so']

# copy shared lib
for f in lib_files:
  shutil.copyfile(so_src + f, so_des + f)

# set-up script
setup(
      name=DISTNAME
    , version=FULLVERSION
    , description= DESCRIPTION
    , author= AUTHOR
    , author_email= EMAIL
    , maintainer= AUTHOR
    , maintainer_email= EMAIL
    , long_description=LONG_DESCRIPTION
    , packages=['package_py',
            'package_py.cpp']
    , package_dir={'package_py.cpp': 'package_py/cpp'}
    , package_data={'package_py.cpp': lib_files}
    )

这导致我的python site-packages中的package_py-0.0.1-py3.6.egg文件。从安装文件夹中使用仅包。

更改第一行以使用distutils.core而不是setuptools

from distutils.core import setup # only change, remainder is the same!!
import shutil
import os

# folder where .so is being build by cpp compilation 
so_src = os.path.join(dir, 'cpp/build/')
# folder where .so should live in python package
so_des = os.path.join(dir, 'package_py/cpp/')

# extension module
lib_files = ['cpp_py.so']

# copy shared lib
for f in lib_files:
  shutil.copyfile(so_src + f, so_des + f)

# set-up script
setup(
      name=DISTNAME
    , version=FULLVERSION
    , description= DESCRIPTION
    , author= AUTHOR
    , author_email= EMAIL
    , maintainer= AUTHOR
    , maintainer_email= EMAIL
    , long_description=LONG_DESCRIPTION
    , packages=['package_py',
            'package_py.cpp']
    , package_dir={'package_py.cpp': 'package_py/cpp'}
    , package_data={'package_py.cpp': lib_files}
    )

我在site-packages中获得了package_py文件夹（包含.so文件）和package_py-0.0.1-py3.6.egg-info。现在该模块适用于所有文件夹。

因为我想扩展python包也使用setup_requires，instal_requires我想真正使用setuptools。如何使用setuptools而不是distutils.core

使程序包在所有文件夹中工作

Answer 1

如果你正在使用C扩展，你应该使用Extension或setuptools中的distutils，它不是python包，所以我很惊讶它甚至管理安装。如果您计划将包分发给其他人，则不应事先编译扩展，而是在包安装期间编译它，以便用户的系统适当地编译它（即，.so文件无法帮助需要它的Windows用户编译成.dll文件等。

尝试这样的事情：

from setuptools import setup, Extension
import shutil
import os

# I don't know how you want to build your extension or your file structure, 
# so removing the build stuff.

your_modulename=Extension('_extensionname',
                          sources=['path/to/extension.cpp', 'more/file/paths'],
                          language='c'
                         )


# set-up script
setup(
      name=DISTNAME
    , version=FULLVERSION
    , description= DESCRIPTION
    , author= AUTHOR
    , author_email= EMAIL
    , maintainer= AUTHOR
    , maintainer_email= EMAIL
    , long_description=LONG_DESCRIPTION
    , ext_modules=[your_modulename]
    , packages=['package_py']
    )

希望这有助于或至少让您走上正轨。

distutils.core与使用c ++扩展的setuptools

1 个答案: