Refs #23919 -- Stopped inheriting from object to define new style classes.

tests/serializers/models/base.py

@@ -100,7 +100,7 @@ class Score(models.Model):
     score = models.FloatField()
 
 
-class Team(object):
+class Team:
     def __init__(self, title):
         self.title = title
 

tests/serializers/test_yaml.py

@@ -18,7 +18,7 @@ except ImportError:
 YAML_IMPORT_ERROR_MESSAGE = r'No module named yaml'
 
 
-class YamlImportModuleMock(object):
+class YamlImportModuleMock:
     """Provides a wrapped import_module function to simulate yaml ImportError
 
     In order to run tests that verify the behavior of the YAML serializer

tests/serializers/tests.py

@@ -88,7 +88,7 @@ class SerializerRegistrationTests(SimpleTestCase):
             serializers.get_deserializer("nonsense")
 
 
-class SerializersTestBase(object):
+class SerializersTestBase:
     serializer_name = None  # Set by subclasses to the serialization format name
 
     @staticmethod
@@ -349,7 +349,7 @@ class SerializersTestBase(object):
 class SerializerAPITests(SimpleTestCase):
 
     def test_stream_class(self):
-        class File(object):
+        class File:
             def __init__(self):
                 self.lines = []
 
@@ -369,7 +369,7 @@ class SerializerAPITests(SimpleTestCase):
         self.assertEqual(data, '[{"model": "serializers.score", "pk": 1, "fields": {"score": 3.4}}]')
 
 
-class SerializersTransactionTestBase(object):
+class SerializersTransactionTestBase:
 
     available_apps = ['serializers']