Use SPDX license identifier

[cdce8p]

PEP 639 added support for SPDX license identifier.
https://spdx.org/licenses/MPL-2.0.html

Metadata diff

 ...
-License: Mozilla Public License 2.0 (MPL 2.0)
+License-Expression: MPL-2.0
 ...
-Classifier: License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)
 ...
 License-File: LICENSE
 ...

[icemac]

I like the change but I think it is a bit too early to require setuptools >= 77. I think it is to mature a bit more and needs more uptake.

[cdce8p]

I like the change but I think it is a bit too early to require setuptools >= 77. I think it is to mature a bit more and needs more uptake.

Are there any specifics you'd like to see from setuptools before adopting it or just that it's too new of a version. Unfortunately, v77 is the first release that fully supports license expressions with the "new" syntax.

An alternative would be to re-use license.text with the SPDX identifier for the time being.

[icemac]

Looks reasonable.