Closes-bug: 1945649
Change-Id: I7df5d9bf3cfb0e58e0e129a56170c8fe33523a4c

/home/zuul/src/opendev.org/openstack/python-keystoneclient/.tox/docs/lib/python3.8/site-packages/keystoneauth1/fixture/discovery.py:docstring of keystoneauth1.fixture.discovery.DiscoveryList:1:duplicate object description of keystoneauth1.fixture.discovery.DiscoveryList, other instance in api/keystoneclient.fixture, use :noindex: for one of them

Change-Id: Id2722a1b275be88af6d0337684f1eb012b7f4ce1

Lower-constraints is not required and has been dropped from Keystone
because of an issue with the new dependency resolver in pip[1].
The job is currently broken so let's disable it to unblock gate first.

[1] d6610594d1b766a8ee3ac65182b951f2a3d431f7

Change-Id: I67b8981b211c5d15154c919ea6f4f75639863437

As per victoria cycle testing runtime and community goal[1]
we need to migrate upstream CI/CD to Ubuntu Focal(20.04).

Fixing:
- bug#1886298
Bump the lower constraints for required deps which added python3.8 support
in their later version.

Story: #2007865
Task: #40190

Closes-Bug: #1886298

[1] https://governance.openstack.org/tc/goals/selected/victoria/migrate-ci-cd-jobs-to-ubuntu-focal.h>

Change-Id: Ieada47b1455e635208bafe12168fadcb65bc72b9

assertItemsEqual was removed from Python's unittest.TestCase in
Python 3.3 [1][2]. We have been able to use them since then, because
testtools required unittest2, which still included it. With testtools
removing Python 2.7 support [3][4], we will lose support for
assertItemsEqual, so we should switch to use assertCountEqual.

[1] - https://bugs.python.org/issue17866
[2] - https://hg.python.org/cpython/rev/d9921cb6e3cd
[3] - testing-cabal/testtools#286
[4] - testing-cabal/testtools#277

Change-Id: Ib5985049235ee1b6018fc172a67e3b05970a6c42