this package seems to have new commits in its VCS but has
not yet updated debian/changelog. You should consider updating
the Debian changelog and uploading this new version into the archive.
Here are the relevant commit logs:
Author: Martin Pitt <email@example.com>
Date: Sat Apr 11 22:14:47 2020 +0200
Fix building against Python 3.8
Import NMU by Matthias Klose.