diff --git a/polymorphic/tests.py b/polymorphic/tests.py
index 096a74f..64968ed 100644
--- a/polymorphic/tests.py
+++ b/polymorphic/tests.py
@@ -281,7 +281,7 @@ class RelatedNameClash(ShowFieldType, PolymorphicModel):
 
 #class with a parent_link to superclass, and a related_name back to subclass
 class TestParentLinkAndRelatedName(ModelShow1_plain):
-    superclass = models.OneToOneField(ModelShow1_plain, parent_link=True, related_name = 'related_name_subclass')
+    superclass = models.OneToOneField(ModelShow1_plain, parent_link=True, related_name='related_name_subclass')
 
 
 class PolymorphicTests(TestCase):
@@ -831,23 +831,23 @@ class PolymorphicTests(TestCase):
         self.assertEqual(o.bar, 'XYZ')
 
     def test_parent_link_and_related_name(self):
-        t = TestParentLinkAndRelatedName(field1 = "TestParentLinkAndRelatedName")
+        t = TestParentLinkAndRelatedName(field1="TestParentLinkAndRelatedName")
         t.save()
-        p = ModelShow1_plain.objects.get(field1 = "TestParentLinkAndRelatedName")
-        
-        #check that p is equal to the 
+        p = ModelShow1_plain.objects.get(field1="TestParentLinkAndRelatedName")
+
+        #check that p is equal to the
         self.assertIsInstance(p, TestParentLinkAndRelatedName)
         self.assertEqual(p, t)
-        
+
         #check that the accessors to parent and sublass work correctly and return the right object
-        p = ModelShow1_plain.objects.non_polymorphic().get(field1 = "TestParentLinkAndRelatedName")
+        p = ModelShow1_plain.objects.non_polymorphic().get(field1="TestParentLinkAndRelatedName")
         self.assertNotEqual(p, t) #p should be Plain1 and t TestParentLinkAndRelatedName, so not equal
         self.assertEqual(p, t.superclass)
         self.assertEqual(p.related_name_subclass, t)
-        
-        #test that we can delete t 
+
+        #test that we can delete the object
         t.delete()
-        
+
 
 class RegressionTests(TestCase):