Comment intégrer des scripts de post-installation avec les outils de configuration Python ?

Post-Install Script Integration with Python setuptools

Integrating post-install scripts into setuptools allows for customizable actions to be executed upon package installation. This article explores a solution that enables you to specify a Python script within the setup.py file to be run after a standard setuptools installation.

Adding Post-Install Functionality to setup.py

To define a post-install script, add custom command classes to setup.py. These classes, PostDevelopCommand and PostInstallCommand, will contain your post-install script or function invocation.

from setuptools import setup, Command

class PostDevelopCommand(Command):
    user_options = []
    def initialize_options(self):
        pass
    def finalize_options(self):
        pass
    def run(self):
        # Run your post-install script or function here

class PostInstallCommand(Command):
    user_options = []
    def initialize_options(self):
        pass
    def finalize_options(self):
        pass
    def run(self):
        # Run your post-install script or function here

In the setup() function, register the custom command classes:

setup(...
      cmdclass={'develop': PostDevelopCommand, 'install': PostInstallCommand},
      ...
     )

Considerations

Note that this solution only works when installing a source distribution or in editable mode from a source tree. It does not apply to binary wheel (.whl) installations.

Additionally, you can consider separate post-install actions for development/editable mode and installation mode.

Alternative Approaches

Besides modifying setup.py, you can also create an install subcommand, as mentioned in the original question. This approach requires maintaining a separate file, which may not be as transparent as the solution presented here.

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