pep8/pyflakes cleanup

1 files changed, 2 insertions, 16 deletions

diff --git a/djangorestframework/serializer.py b/djangorestframework/serializer.py
index 43d32b29..71c0d93a 100644
--- a/djangorestframework/serializer.py
+++ b/djangorestframework/serializer.py
@@ -3,10 +3,8 @@ Customizable serialization.
 """
 from django.db import models
 from django.db.models.query import QuerySet
-from django.db.models.fields.related import RelatedField
 from django.utils.encoding import smart_unicode, is_protected_type, smart_str
 
-import decimal
 import inspect
 import types
 
@@ -24,12 +22,14 @@ def _field_to_tuple(field):
         return (field[0], field[1])
     return (field, None)
 
+
 def _fields_to_list(fields):
     """
     Return a list of field names.
     """
     return [_field_to_tuple(field)[0] for field in fields or ()]
 
+
 def _fields_to_dict(fields):
     """
     Return a `dict` of field name -> None, or tuple of fields, or Serializer class
@@ -104,13 +104,11 @@ class Serializer(object):
     The maximum depth to serialize to, or `None`.
     """
 
-
     def __init__(self, depth=None, stack=[], **kwargs):
         if depth is not None:
             self.depth = depth
         self.stack = stack
 
-
     def get_fields(self, obj):
         """
         Return the set of field names/keys to use for a model instance/dict.
@@ -130,7 +128,6 @@ class Serializer(object):
 
         return fields
 
-
     def get_default_fields(self, obj):
         """
         Return the default list of field names/keys for a model instance/dict.
@@ -142,7 +139,6 @@ class Serializer(object):
         else:
             return obj.keys()
 
-
     def get_related_serializer(self, key):
         info = _fields_to_dict(self.fields).get(key, None)
 
@@ -172,7 +168,6 @@ class Serializer(object):
         # Otherwise use `related_serializer` or fall back to `Serializer`
         return getattr(self, 'related_serializer') or Serializer
 
-
     def serialize_key(self, key):
         """
         Keys serialize to their string value,
@@ -180,7 +175,6 @@ class Serializer(object):
         """
         return self.rename.get(smart_str(key), smart_str(key))
 
-
     def serialize_val(self, key, obj):
         """
         Convert a model field or dict value into a serializable representation.
@@ -202,7 +196,6 @@ class Serializer(object):
 
         return related_serializer(depth=depth, stack=stack).serialize(obj)
 
-
     def serialize_max_depth(self, obj):
         """
         Determine how objects should be serialized once `depth` is exceeded.
@@ -210,7 +203,6 @@ class Serializer(object):
         """
         raise _SkipField
 
-
     def serialize_recursion(self, obj):
         """
         Determine how objects should be serialized if recursion occurs.
@@ -218,7 +210,6 @@ class Serializer(object):
         """
         raise _SkipField
 
-
     def serialize_model(self, instance):
         """
         Given a model instance or dict, serialize it to a dict..
@@ -253,35 +244,30 @@ class Serializer(object):
 
         return data
 
-
     def serialize_iter(self, obj):
         """
         Convert iterables into a serializable representation.
         """
         return [self.serialize(item) for item in obj]
 
-
     def serialize_func(self, obj):
         """
         Convert no-arg methods and functions into a serializable representation.
         """
         return self.serialize(obj())
 
-
     def serialize_manager(self, obj):
         """
         Convert a model manager into a serializable representation.
         """
         return self.serialize_iter(obj.all())
 
-
     def serialize_fallback(self, obj):
         """
         Convert any unhandled object into a serializable representation.
         """
         return smart_unicode(obj, strings_only=True)
 
-
     def serialize(self, obj):
         """
         Convert any object into a serializable representation.