Unclear what the build system is about mutagen HOT 5 CLOSED

https://peps.python.org/pep-0517/

If the pyproject.toml file is absent, or the build-backend key is missing, the source tree is not using this specification, and tools should revert to the legacy behaviour of running setup.py (either directly, or by implicitly invoking the setuptools.build_meta:legacy backend).

Is this causing any problems (both "build" and "pip" seem to do the right thing) ? I can make it explicit if needed

from mutagen.

See #582.

I'd still like to know if this is causing any problems and requires a new release.

from mutagen.

No, no real problems right now. Just a bit confusion, and if you don't specify the setuptools backend explicitly, then you're relying on (somewhat obsolete) legacy setuptools backend. No need to make a new release over this.

from mutagen.

OK, thanks. I've merged #582

from mutagen.

(as for the poetry/setuptools mix.. it allows me to use poetry for dev, while still providing a setup.py with some minimal metadata duplication)

from mutagen.