python-huggingface-hub fails to build with Python 3.15.0b1.

Check import: huggingface_hub.dataclasses
Traceback (most recent call last):
  File "/usr/lib/rpm/redhat/import_all_modules.py", line 106, in import_modules
    importlib.import_module(module)
    ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
  File "/usr/lib64/python3.15/importlib/__init__.py", line 88, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1381, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1346, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1305, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 915, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 747, in exec_module
  File "<frozen importlib._bootstrap>", line 549, in _call_with_frames_removed
  File "/builddir/build/BUILD/python-huggingface-hub-1.16.1-build/BUILDROOT/usr/lib/python3.15/site-packages/huggingface_hub/dataclasses.py", line 5, in <module>
    from dataclasses import _MISSING_TYPE, MISSING, Field, field, fields, make_dataclass
ImportError: cannot import name '_MISSING_TYPE' from 'dataclasses' (/usr/lib64/python3.15/dataclasses.py)

https://docs.python.org/3.15/whatsnew/3.15.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.15-b1/fedora-rawhide-x86_64/10503739-python-huggingface-hub/

For all our attempts to build python-huggingface-hub with Python 3.15, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.15-b1/package/python-huggingface-hub/

Testing and mass rebuild of packages is happening in copr.
You can follow these instructions to test locally in mock if your package builds with Python 3.15:
https://copr.fedorainfracloud.org/coprs/g/python/python3.15-b1/

Let us know here if you have any questions.

Python 3.15 is planned to be included in Fedora 45.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.15.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires),
so if this package is required a lot, it's important for us to get it fixed soon.

We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work around it on our side.