refactor: pyupgrade second iteration (#27453)

common/djangoapps/track/backends/__init__.py

@@ -12,7 +12,7 @@ import abc
 import six
 
 
-class BaseBackend(six.with_metaclass(abc.ABCMeta, object)):
+class BaseBackend(metaclass=abc.ABCMeta):
     """
     Abstract Base Class for event tracking backends.
 

common/djangoapps/track/backends/logger.py

@@ -28,7 +28,7 @@ class LoggerBackend(BaseBackend):
             been configured using the default python mechanisms.
 
         """
-        super(LoggerBackend, self).__init__(**kwargs)  # lint-amnesty, pylint: disable=super-with-arguments
+        super().__init__(**kwargs)  # lint-amnesty, pylint: disable=super-with-arguments
 
         self.event_logger = logging.getLogger(name)
 

common/djangoapps/track/backends/mongodb.py

@@ -33,7 +33,7 @@ class MongoBackend(BaseBackend):
 
         """
 
-        super(MongoBackend, self).__init__(**kwargs)  # lint-amnesty, pylint: disable=super-with-arguments
+        super().__init__(**kwargs)  # lint-amnesty, pylint: disable=super-with-arguments
 
         # Extract connection parameters from kwargs
 

common/djangoapps/track/backends/tests/test_logger.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 """Tests for Event tracker backend."""
 
 

common/djangoapps/track/backends/tests/test_mongodb.py

@@ -1,14 +1,14 @@
 # lint-amnesty, pylint: disable=missing-module-docstring
 
+from unittest.mock import patch
 from django.test import TestCase
-from mock import patch
 
 from common.djangoapps.track.backends.mongodb import MongoBackend
 
 
 class TestMongoBackend(TestCase):  # lint-amnesty, pylint: disable=missing-class-docstring
     def setUp(self):
-        super(TestMongoBackend, self).setUp()  # lint-amnesty, pylint: disable=super-with-arguments
+        super().setUp()
         self.mongo_patcher = patch('common.djangoapps.track.backends.mongodb.MongoClient')
         self.mongo_patcher.start()
         self.addCleanup(self.mongo_patcher.stop)