          return Response('text')
  
  
  urlpatterns = patterns('',
      url(r'^.*\.(?P<format>.+)$', MockView.as_view(renderer_classes=[RendererA, RendererB])),
      url(r'^$', MockView.as_view(renderer_classes=[RendererA, RendererB])),
      url(r'^html$', HTMLView.as_view()),
      url(r'^html1$', HTMLView1.as_view()),
      url(r'^restframework', include('rest_framework.urls', namespace='rest_framework'))
  )
  
 
</s> remove     renderer_classes = (RendererA, RendererB)
 </s> add     renderer_classes = (RendererA, RendererB, RendererC) </s> remove                             return renderer, media_type
 </s> add                             renderer_and_media_type = renderer, media_type
                        if renderer.charset:
                            charset = renderer.charset
                        else:
                            charset = self.__class__.settings.DEFAULT_CHARSET
                        retval = renderer_and_media_type + (charset,)
                        return retval </s> remove         accepted_renderer, accepted_media_type = self.select_renderer(request)
 </s> add         accepted_renderer, accepted_media_type, charset = self.select_renderer(request) </s> remove                 return (renderers[0], renderers[0].media_type)
 </s> add                 charset = renderers[0].charset
                charset = charset if charset is not None else api_settings.DEFAULT_CHARSET
                return (renderers[0], renderers[0].media_type, renderers[0].charset)
    url(r'^.*\.(?P<format>.+)$', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
    url(r'^$', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
          return Response('text')
  
  
  urlpatterns = patterns('',
    url(r'^.*\.(?P<format>.+)$', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
    url(r'^$', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
    url(r'^.*\.(?P<format>.+)$', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
    url(r'^$', MockView.as_view(renderer_classes=[RendererA, RendererB, RendererC])),
      url(r'^html$', HTMLView.as_view()),
      url(r'^html1$', HTMLView1.as_view()),
      url(r'^restframework', include('rest_framework.urls', namespace='rest_framework'))
  )
  
keep keep keep keep replace replace keep keep keep keep keep
 charset param gets now appended to response's Content-Type. Closes #807 
rest_framework/tests/response.py