pyproject.toml and setup.cfg can in some cases make a setup.py unnecessary. That does not mean you should not use it anymore if you have a good reason to use i

pyproject.toml and setup.cfg can in some cases make a setup.py unnecessary. That does not mean you should not use it anymore if you have a good reason to use it. The ones you listed are examples. How ever, as explained in the article, you should still add the pyproject.toml