Refs #23919 -- Replaced super(ClassName, self) with super().

tests/messages_tests/test_api.py

@@ -50,7 +50,7 @@ class CustomRequest:
 
     def __getattribute__(self, attr):
         try:
-            return super(CustomRequest, self).__getattribute__(attr)
+            return super().__getattribute__(attr)
         except AttributeError:
             return getattr(self._request, attr)
 
@@ -61,5 +61,5 @@ class CustomRequestApiTests(ApiTests):
     one in Django REST framework.
     """
     def setUp(self):
-        super(CustomRequestApiTests, self).setUp()
+        super().setUp()
         self.request = CustomRequest(self.request)