diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py
index fcc0744a3..51e0b6647 100644
--- a/rest_framework/serializers.py
+++ b/rest_framework/serializers.py
@@ -22,11 +22,11 @@ class DictWithMetadata(dict):
     """
     A dict-like object, that can have additional properties attached.
     """
-
     def __getstate__(self):
-        """  Used by pickle (e.g., caching).
-             Overriden to remove metadata from the dict, since it shouldn't be pickled
-             and may in some instances be unpickleable.
+        """
+        Used by pickle (e.g., caching).
+        Overriden to remove metadata from the dict, since it shouldn't be pickled
+        and may in some instances be unpickleable.
         """
         # return an instance of the first dict in MRO that isn't a DictWithMetadata
         for base in self.__class__.__mro__:
@@ -41,7 +41,6 @@ class SortedDictWithMetadata(SortedDict, DictWithMetadata):
     pass
 
 
-
 def _is_protected_type(obj):
     """
     True if the object is a native datatype that does not need to
diff --git a/rest_framework/tests/serializer.py b/rest_framework/tests/serializer.py
index 9cedb54b4..31dd36994 100644
--- a/rest_framework/tests/serializer.py
+++ b/rest_framework/tests/serializer.py
@@ -645,18 +645,20 @@ class BlankFieldTests(TestCase):
 
 #test for issue #460
 class SerializerPickleTests(TestCase):
-    """ Test pickleability of the output of Serializers
+    """
+    Test pickleability of the output of Serializers
     """
     def test_pickle_simple_model_serializer_data(self):
-        """ Test simple serializer
+        """
+        Test simple serializer
         """
         pickle.dumps(PersonSerializer(Person(name="Methusela", age=969)).data)
 
-
     def test_pickle_inner_serializer(self):
-        """ Test pickling a serializer whose resulting .data (a SortedDictWithMetadata) will
-         have unpickleable meta data--in order to make sure metadata doesn't get pulled into the pickle.
-         See DictWithMetadata.__getstate__
+        """
+        Test pickling a serializer whose resulting .data (a SortedDictWithMetadata) will
+        have unpickleable meta data--in order to make sure metadata doesn't get pulled into the pickle.
+        See DictWithMetadata.__getstate__
         """
         class InnerPersonSerializer(serializers.ModelSerializer):
             class Meta: