Hm... PEP 621 deliberately doesn't have a replacement for `setuptools`'s `license`, but they do have a `license` key that is equivalent to `license_files`. Unfortunately, this is what PyPI does with the data in that field:
Not great.
@hugovk I am not sure if you are supposed to use it that way, and that makes it so you have to choose between including the license file and having a meaningful short description of the license.
I'll probably just fall back to the setuptools config options.
@pganssle Aha, I'm using Hatchling which uses SPDX identifiers:
https://hatch.pypa.io/latest/config/metadata/#license
Which points to the draft #PEP639 – "Improving License Clarity with Better Package Metadata":
https://peps.python.org/pep-0639/
Hopefully it'll be submitted soon. 🤞