Let's move to python3, it's 2020 and the conversion seemed
actually rather trivial (famous last words).
Change-Id: Ib1604b36c32630e1360e06567cbd5f63a78df547
Fix the script so it is python2 and python3 compatible, then let the
distro decide which python version to use.
Change-Id: If805c8167e2cf57ce3d6143dddfd4685ad729142