          try:
              self.view_name = kwargs.pop('view_name')
          except:
              raise ValueError("Hyperlinked field requires 'view_name' kwarg")
          super(HyperlinkedRelatedField, self).__init__(*args, **kwargs)
  
      def to_native(self, obj):
          view_name = self.view_name
          request = self.context.get('request', None)
 
</s> remove             return reverse(self.view_name, kwargs=kwargs, request=request)
 </s> add             return reverse(self.view_name, kwargs=kwargs, request=request, format=format) </s> remove             return reverse(view_name, kwargs=kwargs, request=request)
 </s> add             return reverse(view_name, kwargs=kwargs, request=request, format=format)
        self.format = kwargs.pop('format', None)
          try:
              self.view_name = kwargs.pop('view_name')
          except:
              raise ValueError("Hyperlinked field requires 'view_name' kwarg")
        self.format = kwargs.pop('format', None)
          super(HyperlinkedRelatedField, self).__init__(*args, **kwargs)
  
      def to_native(self, obj):
          view_name = self.view_name
          request = self.context.get('request', None)
keep keep keep add keep keep keep keep keep
 Fixes for urls with suffixes 
rest_framework/fields.py