abstractions/python: allow /usr/local/lib/python3
This is a follow up to !160 (merged), to treat /usr/local/lib/python3
the same as /usr/local/lib/python{2.[4-7],3.[0-9]}
.
This is a follow up to !160 (merged), to treat /usr/local/lib/python3
the same as /usr/local/lib/python{2.[4-7],3.[0-9]}
.