This bug was fixed in the package horizon - 4:23.3.0-0ubuntu2
---------------
horizon (4:23.3.0-0ubuntu2) noble; urgency=medium
* d/p/ubuntu_settings.patch, d/p/switch-to-pymemcachecache-backend.patch,
d/control: Switch to python3-pymemcache and PyMemcacheCache driver as
the Django MemcachedCache backend was removed in Django 4.1 in favor of
the PyMemcacheCache or PyLibMCCache backend (LP: #2039225).
* d/p/ubuntu_settings.patch: Rebase and apply on top of
switch-to-pymemcachecache-backend.patch.
* d/gbp.conf, .launchpad.yaml: Sync from cloud-archive-tools for
caracal.
-- Corey Bryant <corey.bry...@canonical.com> Thu, 12 Oct 2023 17:17:26
-0400
** Changed in: horizon (Ubuntu)
Status: Triaged => Fix Released
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https://bugs.launchpad.net/bugs/2039225
Title:
django.core.cache.backends.memcached.MemcachedCache backend is
removed
Status in OpenStack Dashboard Charm:
In Progress
Status in Ubuntu Cloud Archive:
Triaged
Status in Ubuntu Cloud Archive bobcat series:
Triaged
Status in OpenStack Dashboard (Horizon):
In Progress
Status in horizon package in Ubuntu:
Fix Released
Status in horizon source package in Mantic:
Triaged
Bug description:
In 4.1 the django.core.cache.backends.memcached.MemcachedCache backend
is removed.
https://github.com/django/django/blob/main/docs/releases/4.1.txt#L749
It's been deprecated since 3.2:
https://docs.djangoproject.com/en/4.2/releases/3.2/#features-
deprecated-in-3-2
"The django.core.cache.backends.memcached.MemcachedCache backend is
deprecated as python-memcached has some problems and seems to be
unmaintained. Use django.core.cache.backends.memcached.PyMemcacheCache
or django.core.cache.backends.memcached.PyLibMCCache instead."
This results in the following error on Ubuntu Mantic:
InvalidCacheBackendError at /
Could not find backend 'django.core.cache.backends.memcached.MemcachedCache':
Module "django.core.cache.backends.memcached" does not define a
"MemcachedCache" attribute/class
Request Method: GET
Request URL: http://10.5.3.66/horizon/
Django Version: 4.2.4
Exception Type: InvalidCacheBackendError
Exception Value:
Could not find backend 'django.core.cache.backends.memcached.MemcachedCache':
Module "django.core.cache.backends.memcached" does not define a
"MemcachedCache" attribute/class
Exception Location:
/usr/lib/python3/dist-packages/django/core/cache/__init__.py, line 49, in
create_connection
Python Executable: /usr/bin/python3
Python Version: 3.11.6
Python Path:
['/usr/lib/python3/dist-packages',
'/usr/lib/python311.zip',
'/usr/lib/python3.11',
'/usr/lib/python3.11/lib-dynload',
'/usr/local/lib/python3.11/dist-packages',
'/usr/lib/python3/dist-packages',
'/usr/lib/python3/dist-packages/openstack_dashboard']
Server time: Thu, 12 Oct 2023 20:44:30 +0000
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