[Debian-med-packaging] Bug#950842: autopkg tests fail with Python 3.8

[Matthias Klose]

Package: src:qiime
Version: 2019.10.0-1
Severity: important
Tags: sid bullseye
User: debian-python at lists.debian.org
Usertags: python3.8

the autopkg tests fail with Python 3.8, I haven't done yet a build on Debian
unstable.

see
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/amd64/q/qiime/20200131_232719_bb032@/log.gz