More attacking E302 violators

django/core/serializers/__init__.py

@@ -90,6 +90,7 @@ def unregister_serializer(format):
         raise SerializerDoesNotExist(format)
     del _serializers[format]
 
+
 def get_serializer(format):
     if not _serializers:
         _load_serializers()
@@ -97,16 +98,19 @@ def get_serializer(format):
         raise SerializerDoesNotExist(format)
     return _serializers[format].Serializer
 
+
 def get_serializer_formats():
     if not _serializers:
         _load_serializers()
     return list(_serializers)
 
+
 def get_public_serializer_formats():
     if not _serializers:
         _load_serializers()
     return [k for k, v in six.iteritems(_serializers) if not v.Serializer.internal_use_only]
 
+
 def get_deserializer(format):
     if not _serializers:
         _load_serializers()
@@ -114,6 +118,7 @@ def get_deserializer(format):
         raise SerializerDoesNotExist(format)
     return _serializers[format].Deserializer
 
+
 def serialize(format, queryset, **options):
     """
     Serialize a queryset (or any iterator that returns database objects) using
@@ -123,6 +128,7 @@ def serialize(format, queryset, **options):
     s.serialize(queryset, **options)
     return s.getvalue()
 
+
 def deserialize(format, stream_or_string, **options):
     """
     Deserialize a stream or a string. Returns an iterator that yields ``(obj,
@@ -133,6 +139,7 @@ def deserialize(format, stream_or_string, **options):
     d = get_deserializer(format)
     return d(stream_or_string, **options)
 
+
 def _load_serializers():
     """
     Register built-in and settings-defined serializers. This is done lazily so

django/core/serializers/base.py

@@ -6,18 +6,22 @@ import warnings
 from django.db import models
 from django.utils import six
 
+
 class SerializerDoesNotExist(KeyError):
     """The requested serializer was not found."""
     pass
 
+
 class SerializationError(Exception):
     """Something bad happened during serialization."""
     pass
 
+
 class DeserializationError(Exception):
     """Something bad happened during deserialization."""
     pass
 
+
 class Serializer(object):
     """
     Abstract serializer base class.
@@ -117,6 +121,7 @@ class Serializer(object):
         if callable(getattr(self.stream, 'getvalue', None)):
             return self.stream.getvalue()
 
+
 class Deserializer(six.Iterator):
     """
     Abstract base deserializer class.
@@ -143,6 +148,7 @@ class Deserializer(six.Iterator):
         """Iteration iterface -- return the next item in the stream"""
         raise NotImplementedError('subclasses of Deserializer must provide a __next__() method')
 
+
 class DeserializedObject(object):
     """
     A deserialized model.
@@ -176,6 +182,7 @@ class DeserializedObject(object):
         # the m2m data twice.
         self.m2m_data = None
 
+
 def build_instance(Model, data, db):
     """
     Build a model instance.

django/core/serializers/json.py

@@ -17,6 +17,7 @@ from django.core.serializers.python import Deserializer as PythonDeserializer
 from django.utils import six
 from django.utils.timezone import is_aware
 
+
 class Serializer(PythonSerializer):
     """
     Convert a queryset to JSON.

django/core/serializers/python.py

@@ -147,6 +147,7 @@ def Deserializer(object_list, **options):
         obj = base.build_instance(Model, data, db)
         yield base.DeserializedObject(obj, m2m_data)
 
+
 def _get_model(model_identifier):
     """
     Helper to look up a model from an "app_label.model_name" string.

django/core/serializers/pyyaml.py

@@ -29,6 +29,7 @@ class DjangoSafeDumper(SafeDumper):
 
 DjangoSafeDumper.add_representer(decimal.Decimal, DjangoSafeDumper.represent_decimal)
 
+
 class Serializer(PythonSerializer):
     """
     Convert a queryset to YAML.
@@ -55,6 +56,7 @@ class Serializer(PythonSerializer):
         # Grand-parent super
         return super(PythonSerializer, self).getvalue()
 
+
 def Deserializer(stream_or_string, **options):
     """
     Deserialize a stream or string of YAML data.

django/core/serializers/xml_serializer.py

@@ -13,6 +13,7 @@ from xml.dom import pulldom
 from xml.sax import handler
 from xml.sax.expatreader import ExpatParser as _ExpatParser
 
+
 class Serializer(base.Serializer):
     """
     Serializes a QuerySet to XML.
@@ -143,6 +144,7 @@ class Serializer(base.Serializer):
             "to": smart_text(field.rel.to._meta),
         })
 
+
 class Deserializer(base.Deserializer):
     """
     Deserialize XML.