dashboard failures with Django 4.2.4

[Corey Bryant]

Running unit tests with Django==4.2.4 results in 124 errors. They seem to be limited to the same error:

== manila-ui ==

======================================================================
ERROR: test_migration_get_progress (manila_ui.tests.dashboards.admin.shares.test_forms.ManilaDashboardsAdminMigrationFormTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/corey/pkg/bobcat/upstream/manila-ui/manila_ui/tests/dashboards/admin/shares/test_forms.py", line 29, in setUp
    self.request = wsgi.WSGIRequest(FAKE_ENVIRON)
  File "/home/corey/pkg/bobcat/upstream/manila-ui/.tox/py3/lib/python3.10/site-packages/django/core/handlers/wsgi.py", line 78, in __init__
    self._stream = LimitedStream(self.environ["wsgi.input"], content_length)
  File "/home/corey/pkg/bobcat/upstream/manila-ui/.tox/py3/lib/python3.10/site-packages/django/core/handlers/wsgi.py", line 24, in __init__
    self._read = stream.read
AttributeError: 'str' object has no attribute 'read'

To reproduce:
git clone https://opendev.org/openstack/manila-ui; cd manila-ui
tox -e py3
.tox/py3/bin/pip3 install Django==4.2.4
tox -e py3

== horizon ==

I'm also hitting a similar error that seems to need fixing in horizon:

======================================================================
ERROR: test_view_1_None (manila_ui.tests.dashboards.project.user_messages.tests.UserMessagesViewTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/corey/pkg/bobcat/upstream/manila-ui/.tox/py3/lib/python3.10/site-packages/ddt.py", line 220, in wrapper
    return func(self, *args, **kwargs)
  File "/home/corey/pkg/bobcat/upstream/manila-ui/manila_ui/tests/dashboards/project/user_messages/tests.py", line 44, in test_view
    self.assertNoMessages()
  File "/home/corey/pkg/bobcat/upstream/manila-ui/.tox/py3/lib/python3.10/site-packages/horizon/test/helpers.py", line 195, in assertNoMessages
    self.assertMessageCount(response, success=0, warn=0, info=0, error=0)
  File "/home/corey/pkg/bobcat/upstream/manila-ui/.tox/py3/lib/python3.10/site-packages/horizon/test/helpers.py", line 203, in assertMessageCount
    temp_req = self.client.request(**{'wsgi.input': None})
  File "/home/corey/pkg/bobcat/upstream/manila-ui/.tox/py3/lib/python3.10/site-packages/django/test/client.py", line 886, in request
    response = self.handler(environ)
  File "/home/corey/pkg/bobcat/upstream/manila-ui/.tox/py3/lib/python3.10/site-packages/django/test/client.py", line 168, in __call__
    request = WSGIRequest(environ)
  File "/home/corey/pkg/bobcat/upstream/manila-ui/.tox/py3/lib/python3.10/site-packages/django/core/handlers/wsgi.py", line 79, in __init__
    self._stream = LimitedStream(self.environ["wsgi.input"], content_length)
  File "/home/corey/pkg/bobcat/upstream/manila-ui/.tox/py3/lib/python3.10/site-packages/django/core/handlers/wsgi.py", line 25, in __init__
    self._read = stream.read
AttributeError: 'NoneType' object has no attribute 'read'

== neutron-vpnaas-dashboard errors ==

======================================================================
FAIL: test_add_endpointgroup_get (neutron_vpnaas_dashboard.dashboards.project.vpn.tests.VPNTests.test_add_endpointgroup_get)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/root/neutron-vpnaas-dashboard/.tox/py3/lib/python3.11/site-packages/openstack_dashboard/test/helpers.py", line 134, in wrapped
    retval = function(inst, *args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/neutron-vpnaas-dashboard/neutron_vpnaas_dashboard/dashboards/project/vpn/tests.py", line 334, in test_add_endpointgroup_get
    self.assertQuerysetEqual(workflow.steps, expected_objs)
  File "/root/neutron-vpnaas-dashboard/.tox/py3/lib/python3.11/site-packages/django/test/testcases.py", line 1330, in assertQuerysetEqual
    return self.assertQuerySetEqual(*args, **kw)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/root/neutron-vpnaas-dashboard/.tox/py3/lib/python3.11/site-packages/django/test/testcases.py", line 1346, in assertQuerySetEqual
    return self.assertEqual(list(items), values, msg=msg)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: Lists differ: [<AddEndpointGroupStep: addendpointgroupaction>] != ['<AddEndpointGroupStep: addendpointgroupaction>']

First differing element 0:
<AddEndpointGroupStep: addendpointgroupaction>
'<AddEndpointGroupStep: addendpointgroupaction>'

- [<AddEndpointGroupStep: addendpointgroupaction>]
+ ['<AddEndpointGroupStep: addendpointgroupaction>']
? + +

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/manila-ui/+/894389

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/horizon/+/894390

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/manila-ui/+/894389
Committed: https://opendev.org/openstack/manila-ui/commit/9c7912238dd3367d6a97b454a375390a0c548e3d
Submitter: "Zuul (22348)"
Branch: master

commit 9c7912238dd3367d6a97b454a375390a0c548e3d
Author: Corey Bryant <email address hidden>
Date: Fri Sep 8 14:22:49 2023 -0400

    Fix test failures with Django 4.x

    The wsgi.input environment variable is expected to be a stream
    instead of a string.

    Closes-Bug: #2034952
    Change-Id: I72e88dcf07c90051ddf1c9030a2466501482de5d

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/neutron-vpnaas-dashboard/+/894832

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/manila-ui 10.0.0.0rc1 release candidate.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/horizon/+/894390
Committed: https://opendev.org/openstack/horizon/commit/b5b22dd183955e7dc551f0417ab352b7401271fe
Submitter: "Zuul (22348)"
Branch: master

commit b5b22dd183955e7dc551f0417ab352b7401271fe
Author: Corey Bryant <email address hidden>
Date: Fri Sep 8 14:25:00 2023 -0400

    Fix test failures with Django 4.x

    The wsgi.input environment variable is expected to be a stream.

    Closes-Bug: #2034952
    Change-Id: I602449245b30d5375251bd7138f538f28068a16a

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 23.4.0 release.