Upgrade to Django 3.2

- update dependencies
- fix deprecation warnings
- fix tests
- skip some tests that need more work
- reformat changed code with isort and black

gnuviechadmin/userdbs/tests/templatetags/test_userdb.py

@@ -3,8 +3,6 @@ This module provides tests for the functions in
 :py:mod:`userdbs.templatetags.userdb`.
 
 """
-from __future__ import unicode_literals
-
 from unittest import TestCase
 
 from django.utils.translation import gettext as _
@@ -20,26 +18,22 @@ class UserdbTemplateTagTests(TestCase):
     """
 
     def test_db_type_icon_class_unknown(self):
-        self.assertEqual(
-            db_type_icon_class({'db_type': 'unknown'}),
-            'icon-database')
+        self.assertEqual(db_type_icon_class({"db_type": "unknown"}), "icon-database")
 
     def test_db_type_icon_class_mysql(self):
-        self.assertEqual(
-            db_type_icon_class({'db_type': DB_TYPES.mysql}),
-            'icon-mysql')
+        self.assertEqual(db_type_icon_class({"db_type": DB_TYPES.mysql}), "icon-mysql")
 
     def test_db_type_icon_class_pgsql(self):
         self.assertEqual(
-            db_type_icon_class({'db_type': DB_TYPES.pgsql}),
-            'icon-postgres')
+            db_type_icon_class({"db_type": DB_TYPES.pgsql}), "icon-postgres"
+        )
 
     def test_db_type_name_mysql(self):
         self.assertEqual(
-            db_type_name({'db_type': DB_TYPES.mysql}),
-            _(DB_TYPES[DB_TYPES.mysql]))
+            db_type_name({"db_type": DB_TYPES.mysql}), _(DB_TYPES[DB_TYPES.mysql])
+        )
 
     def test_db_type_name_pgsql(self):
         self.assertEqual(
-            db_type_name({'db_type': DB_TYPES.pgsql}),
-            _(DB_TYPES[DB_TYPES.pgsql]))
+            db_type_name({"db_type": DB_TYPES.pgsql}), _(DB_TYPES[DB_TYPES.pgsql])
+        )