Review Python packaging guidelines

[jw3]

https://docs.fedoraproject.org/en-US/packaging-guidelines/Python/

[jw3]

This section says a lot

https://docs.fedoraproject.org/en-US/packaging-guidelines/Python/#_python_version_support

Fedora packages MUST NOT depend on other versions of the CPython interpreter than the current python3.
...
Fedora does include alternate interpreter versions, e.g. python2.7 or python3.5, but these are meant only for developers that need to test upstream code. Bug and security fixes for these interpreters only cover this use case.