pyproject.toml is not supported

While #813 talks about that implementations, it's still not implemented. It even looks like it will never be the case ...

How do I conclude this?

813 doesn't report success - further discussion was blocked.
1007 was not merged.
1180 was just a statement, no discussion accepted.
1193 again no discussion accepted.
There is no other open issue for pyproject.toml.
pyproject.toml is not listed in the documentation.

As stated in #1193:

it is not supported. there are many config files that are not supported so it does not make sense to enumerate them

It looks like PyCQA is rejecting PEP518. Moreover, there is no rational on that decision documented. It also looks like, no open discussion is accepted even years after some problematic discussions.

I don't understand that behavior, because the community has evolved and almost all Python tools that I know have pyproject.toml support or are working on it. Even TOML is no part of Python core library.

PyCQA / pycodestyle

pyproject.toml is not supported #1226

813 doesn't report success - further discussion was blocked.

1007 was not merged.

1180 was just a statement, no discussion accepted.

1193 again no discussion accepted.