Issue upgrading from 3.3.2 to 3.3.3 (Unable to import plugin django3_saml2_nbplugin: Module not found)

[dcatalani]

Hello All,
I am trying to upgrade Netbox from 3.3.2 to 3.3.3 on Red Hat 8.10 (Ootpa) following the Netbox documentation (https://netboxlabs.com/docs/netbox/en/stable/installation/upgrading/) and I get stuck right after I ran the ./upgrade.sh, I get this error:

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/opt/netbox/netbox/manage.py", line 10, in
execute_from_command_line(sys.argv)
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/core/management/init.py", line 442, in execute_from_command_line
utility.execute()
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/core/management/init.py", line 436, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/core/management/base.py", line 405, in run_from_argv
parser = self.create_parser(argv[0], argv[1])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/core/management/base.py", line 368, in create_parser
self.add_arguments(parser)
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/core/management/commands/migrate.py", line 50, in add_arguments
choices=tuple(connections),
^^^^^^^^^^^^^^^^^^
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/utils/connection.py", line 73, in iter
return iter(self.settings)
^^^^^^^^^^^^^
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/utils/functional.py", line 47, in get
res = instance.dict[self.name] = self.func(instance)
^^^^^^^^^^^^^^^^^^^
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/utils/connection.py", line 45, in settings
self._settings = self.configure_settings(self._settings)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/db/utils.py", line 148, in configure_settings
databases = super().configure_settings(databases)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/utils/connection.py", line 50, in configure_settings
settings = getattr(django_settings, self.settings_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/conf/init.py", line 81, in getattr
self._setup(name)
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/conf/init.py", line 68, in _setup
self._wrapped = Settings(settings_module)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/netbox/venv/lib64/python3.11/site-packages/django/conf/init.py", line 166, in init
mod = importlib.import_module(self.SETTINGS_MODULE)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/lib64/python3.11/importlib/init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 1204, in _gcd_import
File "", line 1176, in _find_and_load
File "", line 1147, in _find_and_load_unlocked
File "", line 690, in _load_unlocked
File "", line 940, in exec_module
File "", line 241, in _call_with_frames_removed
File "/opt/netbox/netbox/netbox/settings.py", line 658, in
raise ImproperlyConfigured(
django.core.exceptions.ImproperlyConfigured: Unable to import plugin django3_saml2_nbplugin: Module not found. Check that the plugin module has been installed within the correct Python environment.
[root@cyp-netbox-d01 netbox]#

Here are some info that might be helpful:
Python 3.11.9
(venv) [root@cyp-netbox-d01 netbox]#
(venv) [root@cyp-netbox-d01 netbox]# pip list | grep saml
django3-auth-saml2 0.6.1
pysaml2 7.5.0
(venv) [root@cyp-netbox-d01 netbox]#
(venv) [root@cyp-netbox-d01 netbox]# pip list | grep django
django-auth-ldap 5.1.0
django-cors-headers 3.13.0
django-debug-toolbar 3.6.0
django-filter 22.1
django-graphiql-debug-toolbar 0.2.0
django-js-asset 2.2.0
django-mptt 0.13.4
django-pglocks 1.0.4
django-prometheus 2.2.0
django-redis 5.2.0
django-rich 1.4.0
django-rq 2.5.1
django-tables2 2.4.1
django-taggit 3.0.0
django-timezone-field 5.0
django3-auth-saml2 0.6.1
djangorestframework 3.13.1
graphene-django 2.15.0
social-auth-app-django 5.0.0
(venv) [root@cyp-netbox-d01 netbox]#

/opt/netbox/netbox/netbox/configuration.py:

Enable installed plugins. Add the name of each plugin to the list.

PLUGINS = ['django3_saml2_nbplugin']

PLUGINS_CONFIG = {
'django3_saml2_nbplugin': {

How can I solve this ?
Thanks

[candlerb]

upgrade.sh destroys and recreates the virtual environment, so any python package(s) you've manually installed will be blown away.

To fix this, you need to create /opt/netbox/local_requirements.txt containing

django3-auth-saml2

then re-run upgrade.sh