The following warning is raised repeatedly by fetchconfig.py:
elif not isinstance(c, collections.Mapping):
/usr/bin/fetchconfig.py:96: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3, and in 3.9 it will stop working
The following warning is raised repeatedly by fetchconfig.py:
This PR includes a fix for this repeated warning.