python-josepy fails to build with Python 3.12.0a3.

Traceback (most recent call last):
  File "/usr/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 160, in exc_logging_wrapper
    status = run_func(*args)
             ^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pip/_internal/cli/req_command.py", line 247, in wrapper
    return func(self, options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pip/_internal/commands/install.py", line 326, in run
    session = self.get_default_session(options)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pip/_internal/cli/req_command.py", line 98, in get_default_session
    self._session = self.enter_context(self._build_session(options))
                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pip/_internal/cli/req_command.py", line 125, in _build_session
    session = PipSession(
              ^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pip/_internal/network/session.py", line 343, in __init__
    self.headers["User-Agent"] = user_agent()
                                 ^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pip/_internal/network/session.py", line 175, in user_agent
    setuptools_dist = get_default_environment().get_distribution("setuptools")
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pip/_internal/metadata/importlib/_envs.py", line 188, in get_distribution
    return next(matches, None)
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pip/_internal/metadata/importlib/_envs.py", line 183, in <genexpr>
    matches = (
              ^
  File "/usr/lib/python3.12/site-packages/pip/_internal/metadata/base.py", line 622, in iter_all_distributions
    for dist in self._iter_distributions():
  File "/usr/lib/python3.12/site-packages/pip/_internal/metadata/importlib/_envs.py", line 178, in _iter_distributions
    yield dist
  File "/usr/lib/python3.12/site-packages/pip/_internal/metadata/importlib/_envs.py", line 144, in find_eggs
    yield from self._find_eggs_in_dir(location)
  File "/usr/lib/python3.12/site-packages/pip/_internal/metadata/importlib/_envs.py", line 111, in _find_eggs_in_dir
    from pip._vendor.pkg_resources import find_distributions
  File "/usr/lib/python3.12/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3251, in <module>
    @_call_aside
     ^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3235, in _call_aside
    f(*args, **kwargs)
  File "/usr/lib/python3.12/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3277, in _initialize_master_working_set
    tuple(
  File "/usr/lib/python3.12/site-packages/pip/_vendor/pkg_resources/__init__.py", line 3278, in <genexpr>
    dist.activate(replace=False)
  File "/usr/lib/python3.12/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2785, in activate
    declare_namespace(pkg)
  File "/usr/lib/python3.12/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2284, in declare_namespace
    _handle_ns(packageName, path_item)
  File "/usr/lib/python3.12/site-packages/pip/_vendor/pkg_resources/__init__.py", line 2201, in _handle_ns
    loader = importer.find_module(packageName)
             ^^^^^^^^^^^^^^^^^^^^
AttributeError: 'zipimporter' object has no attribute 'find_module'. Did you mean: 'load_module'?

zipimport: Remove find_loader() and find_module() methods, deprecated in Python 3.10: use the find_spec() method instead. See PEP 451 for the rationale. (Contributed by Victor Stinner in gh-94379.)

https://github.com/python/cpython/issues/94379
https://docs.python.org/3.12/whatsnew/3.12.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.12/fedora-rawhide-x86_64/05133258-python-josepy/

For all our attempts to build python-josepy with Python 3.12, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.12/package/python-josepy/

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 3.12:
https://copr.fedorainfracloud.org/coprs/g/python/python3.12/

Let us know here if you have any questions.

Python 3.12 is planned to be included in Fedora 39. To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.12.
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.