This bug was fixed in the package python3.9 - 3.9.0~rc1-1~20.04
--------------- python3.9 (3.9.0~rc1-1~20.04) focal-proposed; urgency=medium
* SRU: LP: #1889218. Backport Python 3.9 to 20.04 LTS.
-- Matthias Klose <email address hidden> Thu, 03 Sep 2020 21:31:07 +0200
This bug was fixed in the package python3.9 - 3.9.0~rc1-1~20.04
---------------
python3.9 (3.9.0~rc1-1~20.04) focal-proposed; urgency=medium
* SRU: LP: #1889218. Backport Python 3.9 to 20.04 LTS.
-- Matthias Klose <email address hidden> Thu, 03 Sep 2020 21:31:07 +0200