[Debian-med-packaging] Bug#972773: python-ciso8601 ftbfs with python3.9

[Matthias Klose]

Package: src:python-ciso8601
Version: 2.1.3-2
Severity: serious
Tags: sid bullseye
User: debian-python at lists.debian.org
Usertags: python3.9

https://people.debian.org/~ginggs/python3.9-default/python-ciso8601_2.1.3-2build1_amd64-2020-10-22T13:38:30Z.build


packaging error, you are mixing b-d's python3-all and python3-dev, which cannot
work.

to support all python3 version, b-d on python3-all-dev,  if supporting a single
version, b-d on python-dev. Nothing else.