openstack related lib ‘kombu’ version 4.2.2 was gone

[DingDong]

In upper-constraints.txt
there is kombu===4.2.2, but this version was changed to 4.2.2.post1.
And the original version 4.2.2 was gone, so it failed devstack when installing:
..
10:53:34 Collecting kombu===4.2.2 (from -c /opt/stack/requirements/upper-constraints.txt (line 230))
10:53:34 Could not find a version that satisfies the requirement kombu===4.2.2 (from -c /opt/stack/requirements/upper-constraints.txt (line 230)) (from versions: 0.1.0, 0.2.0, 0.9.0, 0.9.1, 0.9.2, 0.9.4, 0.9.5, 0.9.6, 0.9.7, 1.0.0b1, 1.0.0b2, 1.0.0b3, 1.0.0b4, 1.0.0rc1, 1.0.0rc2, 1.0.0rc3, 1.0.0rc4, 1.0.0, 1.0.1, ... 3.0.30, 3.0.31, 3.0.32, 3.0.33, 3.0.34, 3.0.35, 3.0.36, 3.0.37, 4.0.0rc3, 4.0.0rc4, 4.0.0rc5, 4.0.0rc6, 4.0.0, 4.0.1, 4.0.2, 4.1.0, 4.2.0, 4.2.1, 4.2.2.post1)
10:53:34 No matching distribution found for kombu===4.2.2 (from -c /opt/stack/requirements/upper-constraints.txt (line 230))
...

There are two code review
https://review.openstack.org/#/c/627913/
https://review.openstack.org/#/c/627925/

[Dr. Jens Harbott (j-harbott)]

This is an issue that needs a requirements update, tracked in https://storyboard.openstack.org/#!/story/2004685, so marking invalid for devstack.