install_requires = setuptools; python_version>="3.12" and upgrade GitHub Actions

[cclauss]

@gvalkov Your review, please.

Fixes #8
Fixes #10
Fixes #22
Fixes #23

• Exception raised when a command is imported in setup.py #8
• Does not work when __name__ == __main__ #10
• Python 3.12 requires dependency setuptools #22
• setup.cfg: install_requires = setuptools; python_version>=3.12 #23

---

distutils is deprecated with removal planned for Python 3.12. See the What’s New entry for more information.

install_requires =
    setuptools; python_version>="3.12"

---

Mock(spec) --> Mock(autospec)

setuptools-py2cfg/setuptools_py2cfg.py

Line 44 in 7299f1c

sys.modules['setuptools'] = Mock(spec=setuptools)

• https://nedbatchelder.com/blog/202202/why_your_mock_still_doesnt_work.html

[dbarnett]

Also fixes so you can successfully install it with pipx and run it. =)

Would be great to get this merged!

[cclauss]

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[gvalkov]

Thanks for the fix and sorry for the terrible delay.