Migrate from setup.cfg to pyproject.toml

[methane]

• flake8 section can be removed by moving to ruff. (Use Ruff #542)
• metadata can be converted to PEP 621.

[ThomasWaldmann]

Maybe interesting: https://pypi.org/project/pyproject-flake8/

[ThomasWaldmann]

Besides the flake8 section, what else is to do for this issue?

[methane]

I updated the issue comment.

[ThomasWaldmann]

https://peps.python.org/pep-0621/ "PEP 621 – Storing project metadata in pyproject.toml"

[ThomasWaldmann]

I'll try to make a PR for pep621.

[ThomasWaldmann]

See PR #555.