How To Put My Python C-module Inside Package?

I would like to gather multiple Python modules under one package, so they do not reserve too many names from global set of python packages and modules. But I have problems with mod

Solution 1:

There must be an __init__.py file in the foopkg folder, otherwise Python does not recognize as a package.

Create a foopkg folder where setup.py is, and put an empty file __init__.py there, and add a packages line to setup.py:

from distutils.coreimport setup
from distutils.extensionimportExtensionsetup(name='foobar',
      version='1.0',
      packages=['foopkg'],
      ext_modules=[Extension('foopkg.foo', ['foo.c'])],
      )

Solution 2:

distutils will be deprecated since python 3.10 , instead you can use setuptools, which is an enhanced alternative of distutils , so you don't need to pass packages argument in your setup(). For example :

from setuptools import setup, Extension
setup(name='foobar',
      version='1.0',
      ext_modules=[Extension('foopkg.foo', ['foo.c'])],
      )

Then build and install your C extension

python /PATH/TO/setup.py install

After building your C extension successfully, test whether it can be imported as expected by running this command:

python -c "from foopkg import foo"

[side note] One more thing about setuptool is that you can uninstall the C extension package by simply running pip uninstall, for example : python -m pip uninstall foobar