Can I run a Python script automatically after installing a package using setuptools?

Post-Install Script with Python setuptools

Question:

Can one execute a post-install Python script automatically when installing a package with setuptools?

Answer:

Yes, it is possible to specify a post-install script within the setuptools setup.py file. This script will run upon completion of the standard setuptools installation. However, this solution only applies to source distribution installations (zip or tarball) or editable mode installations from a source tree.

Solution:

To achieve this, modify setup.py to include post-install script functionality:

from setuptools import setup
from setuptools.command.develop import develop
from setuptools.command.install import install


class PostDevelopCommand(develop):
    """Post-installation for development mode."""
    def run(self):
        develop.run(self)
        # Insert your post-install script here

class PostInstallCommand(install):
    """Post-installation for installation mode."""
    def run(self):
        install.run(self)
        # Insert your post-install script here


setup(
    ...,

    cmdclass={
        'develop': PostDevelopCommand,
        'install': PostInstallCommand,
    },

    ...
)

This approach allows you to execute specific tasks or deliver custom messages to the user upon package installation.

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