Is your feature request related to a problem? Please describe.
The python-avocado-common package was introduced when both Python 2 and 3 was supported to be built out of the same source. Since that is long gone, we can simplify packaging by making it part of python3-avocado.
Describe the solution you'd like
A simpler packaging (python-avocado.spec) with one self contained package for the base Avocado installation (python3-avocado).
Describe alternatives you've considered
Keeping the existing package structure.
Additional information
None.