      return re.sub(camelcase_boundry, ' \\1', content).strip()
  
  
  class APIView(_View):
      renderers = api_settings.DEFAULT_RENDERERS
      parsers = api_settings.DEFAULT_PARSERS
      authentication = api_settings.DEFAULT_AUTHENTICATION
      throttle_classes = api_settings.DEFAULT_THROTTLES
      permission_classes = api_settings.DEFAULT_PERMISSIONS
  
      @classmethod
      def as_view(cls, **initkwargs):
 
</s> remove     def __init__(self, request, parsers=None, authentication=None):
 </s> add     def __init__(self, request, parser_classes=None, authentication_classes=None): </s> remove         self.parsers = parsers or ()
        self.authentication = authentication or ()
 </s> add         self.parser_classes = parser_classes or ()
        self.authentication_classes = authentication_classes or () </s> remove     authentication = (SessionAuthentication,)
 </s> add     authentication_classes = (SessionAuthentication,) </s> remove     renderers = (DocumentingHTMLRenderer, JSONRenderer)
 </s> add     renderer_classes = (DocumentingHTMLRenderer, JSONRenderer) </s> remove     renderers = (RendererA, RendererB)
 </s> add     renderer_classes = (RendererA, RendererB)
    renderer_classes = api_settings.DEFAULT_RENDERERS
    parser_classes = api_settings.DEFAULT_PARSERS
    authentication_classes = api_settings.DEFAULT_AUTHENTICATION
      return re.sub(camelcase_boundry, ' \\1', content).strip()
  
  
  class APIView(_View):
    renderer_classes = api_settings.DEFAULT_RENDERERS
    parser_classes = api_settings.DEFAULT_PARSERS
    authentication_classes = api_settings.DEFAULT_AUTHENTICATION
    renderer_classes = api_settings.DEFAULT_RENDERERS
    parser_classes = api_settings.DEFAULT_PARSERS
    authentication_classes = api_settings.DEFAULT_AUTHENTICATION
    renderer_classes = api_settings.DEFAULT_RENDERERS
    parser_classes = api_settings.DEFAULT_PARSERS
    authentication_classes = api_settings.DEFAULT_AUTHENTICATION
      throttle_classes = api_settings.DEFAULT_THROTTLES
      permission_classes = api_settings.DEFAULT_PERMISSIONS
  
      @classmethod
      def as_view(cls, **initkwargs):
keep keep keep keep replace replace replace keep keep keep keep keep
 Better naming for properties on views, requests and responses

renderers is now renderer_classes
parsers is now parser_classes
authentication is now authentication_classes 
djangorestframework/views.py