Support for customising build.sub_commands directly from distutils has been deprecated and is about to be removed from setuptools

[abravalheri]

The following feature in setuptools has been deprecated for almost 2 years and is about to be removed:

https://github.com/pypa/setuptools/blob/1ed759173983656734c3606e9c97a348895e5e0c/setuptools/command/build.py#L13-L27

It might be a good idea to import build directly from setuptools for the following code:

phply/setup.py

Line 7 in 050aaa2

distutils_build.sub_commands.insert(0, ('gen_parsetab', lambda _: True))

(build is available directly from setuptools, starting on version v62.4.0)