          serializer = self.model_serializer_class(data=self.data)
          self.assertEquals(serializer.is_valid(), True)
  
      def test_create_not_blank_field(self):
          """
          Test to ensure blank data in a field not marked as blank=True
          is considered invalid in a non-model serializer
 
</s> remove         for k,v in kwargs.iteritems():
 </s> add         for k, v in kwargs.iteritems(): </s> remove         for k,v in self._original_settings.iteritems():
 </s> add         for k, v in self._original_settings.iteritems(): </s> remove from django.conf.urls.defaults import patterns, url
 </s> add from rest_framework.compat import patterns, url </s> remove from django.conf.urls.defaults import patterns
 </s> add 
    def test_create_model_null_field(self):
        serializer = self.model_serializer_class(data={'title': None})
        self.assertEquals(serializer.is_valid(), True)

          serializer = self.model_serializer_class(data=self.data)
          self.assertEquals(serializer.is_valid(), True)
  
    def test_create_model_null_field(self):
        serializer = self.model_serializer_class(data={'title': None})
        self.assertEquals(serializer.is_valid(), True)

      def test_create_not_blank_field(self):
          """
          Test to ensure blank data in a field not marked as blank=True
          is considered invalid in a non-model serializer
keep keep add keep keep keep keep
 urls, patterns, include imports move to compat to support incoming 1.3 thru 1.6 import compatability 
rest_framework/tests/serializer.py