waiverdb fails to build with Python 3.8.2 and 3.9.0a6:

+ make -C docs html man text
make: Entering directory '/builddir/build/BUILD/waiverdb-1.1.6/docs'
Running Sphinx v2.2.2
making output directory... done
loading intersphinx inventory from python-intersphinx.inv...
loading intersphinx inventory from greenwave-intersphinx.inv...
building [mo]: targets for 0 po files that are out of date
building [html]: targets for 8 source files that are out of date
updating environment: [new config] 8 added, 0 changed, 0 removed
reading sources... [ 12%] admin-guide
reading sources... [ 25%] api

Exception occurred:
  File "/usr/lib/python3.9/site-packages/httplib2/__init__.py", line 28, in <module>
    import email.FeedParser
ModuleNotFoundError: No module named 'email.FeedParser'

This is caused by bz1830222.

This blocks the Python 3.9 test rebuild.

For the build logs with Python 3.9, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.9/fedora-rawhide-x86_64/01365694-waiverdb/

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

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.