python-metaextract fails to build with Python 3.9.0a2:

Download error on https://pypi.org/simple/pbr/: [Errno -2] Name or service not known -- Some packages may not be found!
Couldn't find index page for 'pbr' (maybe misspelled?)
Download error on https://pypi.org/simple/: [Errno -2] Name or service not known -- Some packages may not be found!
No local packages or working download links found for pbr>=1.0
Traceback (most recent call last):
  File "/tmp/pytest-of-mockbuild/pytest-0/test_run_setup_py_from_dir_pbr0/pbr_simple/setup.py", line 9, in <module>
    setuptools.setup(
  File "/usr/lib/python3.9/site-packages/setuptools/__init__.py", line 144, in setup
    _install_setup_requires(attrs)
  File "/usr/lib/python3.9/site-packages/setuptools/__init__.py", line 139, in _install_setup_requires
    dist.fetch_build_eggs(dist.setup_requires)
  File "/usr/lib/python3.9/site-packages/setuptools/dist.py", line 717, in fetch_build_eggs
    resolved_dists = pkg_resources.working_set.resolve(
  File "/usr/lib/python3.9/site-packages/pkg_resources/__init__.py", line 780, in resolve
    dist = best[req.key] = env.best_match(
  File "/usr/lib/python3.9/site-packages/pkg_resources/__init__.py", line 1065, in best_match
    return self.obtain(req, installer)
  File "/usr/lib/python3.9/site-packages/pkg_resources/__init__.py", line 1077, in obtain
    return installer(requirement)
  File "/usr/lib/python3.9/site-packages/setuptools/dist.py", line 787, in fetch_build_egg
    return cmd.easy_install(req)
  File "/usr/lib/python3.9/site-packages/setuptools/command/easy_install.py", line 678, in easy_install
    raise DistutilsError(msg)
distutils.errors.DistutilsError: Could not find suitable distribution for Requirement.parse('pbr>=1.0')



Seems like a missing dependency?



For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.9/fedora-rawhide-x86_64/01161695-python-metaextract/

For all our attempts to build python-metaextract with Python 3.9, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/package/python-metaextract/

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 3.9:
https://copr.fedorainfracloud.org/coprs/g/python/python3.9/

Let us know here if you have any questions.

Python 3.9 will be included in Fedora 33. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.9.
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.