python-b2sdk fails to build with Python 3.12.0a5.

/usr/bin/python3: No module named pip
Traceback (most recent call last):
  File "/usr/lib/python3.12/site-packages/setuptools/installer.py", line 82, in fetch_build_egg
    subprocess.check_call(cmd)
  File "/usr/lib64/python3.12/subprocess.py", line 413, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/usr/bin/python3', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmp7mv5ptdp', '--quiet', 'setuptools_scm<6.0']' returned non-zero exit status 1.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/builddir/build/BUILD/b2sdk-1.18.0/setup.py", line 50, in <module>
    setup(
  File "/usr/lib/python3.12/site-packages/setuptools/__init__.py", line 86, in setup
    _install_setup_requires(attrs)
  File "/usr/lib/python3.12/site-packages/setuptools/__init__.py", line 80, in _install_setup_requires
    dist.fetch_build_eggs(dist.setup_requires)
  File "/usr/lib/python3.12/site-packages/setuptools/dist.py", line 875, in fetch_build_eggs
    resolved_dists = pkg_resources.working_set.resolve(
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pkg_resources/__init__.py", line 789, in resolve
    dist = best[req.key] = env.best_match(
                           ^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pkg_resources/__init__.py", line 1075, in best_match
    return self.obtain(req, installer)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/pkg_resources/__init__.py", line 1087, in obtain
    return installer(requirement)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/setuptools/dist.py", line 945, in fetch_build_egg
    return fetch_build_egg(self, req)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/setuptools/installer.py", line 84, in fetch_build_egg
    raise DistutilsError(str(e)) from e
distutils.errors.DistutilsError: Command '['/usr/bin/python3', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmp7mv5ptdp', '--quiet', 'setuptools_scm<6.0']' returned non-zero exit status 1.
error: Bad exit status from /var/tmp/rpm-tmp.e7dx4G (%build)

/usr/bin/python3: No module named pip
This can be fixed by BuildRequiring python3-pip, but it leads to another error:
ERROR: Could not find a version that satisfies the requirement setuptools_scm<6.0 (from versions: none)
ERROR: No matching distribution found for setuptools_scm<6.0

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_64/05589100-python-b2sdk/

For all our attempts to build python-b2sdk with Python 3.12, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.12/package/python-b2sdk/

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.