3 files changed, 4 insertions, 2 deletions
diff --git a/tests/decorators/tests.py b/tests/decorators/tests.py
index bd4fa4756c..e72e6cfee3 100644
--- a/tests/decorators/tests.py
+++ b/tests/decorators/tests.py
@@ -174,6 +174,7 @@ def myattr2_dec(func):
 
 myattr2_dec_m = method_decorator(myattr2_dec)
 
+
 class ClsDec(object):
     def __init__(self, myattr):
         self.myattr = myattr
@@ -233,7 +234,7 @@ class MethodDecoratorTests(TestCase):
 
         # t = Test()
         self.assertEqual(Test().method(), False)
-        
+
 
 class XFrameOptionsDecoratorsTests(TestCase):
     """
diff --git a/tests/migrations/test_checks.py b/tests/migrations/test_checks.py
index 9ba5bb8e25..27a44c6164 100644
--- a/tests/migrations/test_checks.py
+++ b/tests/migrations/test_checks.py
@@ -1,7 +1,7 @@
 # encoding: utf8
 from django.core import checks
 from django.core.checks.migrations import check_migrations
-from django.test import TestCase, override_settings
+from django.test import override_settings
 
 from .test_base import MigrationTestBase
 
diff --git a/tests/migrations/test_operations.py b/tests/migrations/test_operations.py
index 9d5ae91510..ef23dcf80f 100644
--- a/tests/migrations/test_operations.py
+++ b/tests/migrations/test_operations.py
@@ -478,6 +478,7 @@ class OperationTests(MigrationTestBase):
         """
 
         project_state = self.set_up_test_model("test_runpython")
+
         # Create the operation
         def inner_method(models, schema_editor):
             Pony = models.get_model("test_runpython", "Pony")