diff --git a/rest_framework/test.py b/rest_framework/test.py
index 421b1e7f5..f2c0f53a1 100644
--- a/rest_framework/test.py
+++ b/rest_framework/test.py
@@ -451,4 +451,4 @@ class ModelTestCase(APITestCase):
             response = self.client.post(self.url, case, format='json')
             response.data.pop('id')
             self.assertEqual(case, response.data)
-            self.assertEqual(response.status_code, status.HTTP_201_CREATED)
\ No newline at end of file
+            self.assertEqual(response.status_code, status.HTTP_201_CREATED)
diff --git a/tests/test_testing.py b/tests/test_testing.py
index 4579bf418..1c6a0b166 100644
--- a/tests/test_testing.py
+++ b/tests/test_testing.py
@@ -11,7 +11,8 @@ from rest_framework import fields, serializers, viewsets
 from rest_framework.decorators import api_view
 from rest_framework.response import Response
 from rest_framework.test import (
-    APIClient, APIRequestFactory, URLPatternsTestCase, force_authenticate, ModelTestCase
+    APIClient, APIRequestFactory, ModelTestCase, URLPatternsTestCase,
+    force_authenticate
 )
 
 
@@ -343,4 +344,4 @@ class TestModelTestCase(ModelTestCase):
     url = "/persons/"
     first_name = ["John", "Jane"]
     last_name = ["Doe", "Roosevelt"]
-    age = [11, 23, 58, 13, 21]
\ No newline at end of file
+    age = [11, 23, 58, 13, 21]