  """
  from __future__ import unicode_literals
  
  from collections import namedtuple
  from django.core.exceptions import ImproperlyConfigured
  from rest_framework import views
  from rest_framework.compat import patterns, url
  from rest_framework.response import Response
 
</s>
import itertools
  """
  from __future__ import unicode_literals
  
import itertools
  from collections import namedtuple
  from django.core.exceptions import ImproperlyConfigured
  from rest_framework import views
  from rest_framework.compat import patterns, url
  from rest_framework.response import Response
keep keep add keep keep keep keep keep
 Raise exception when attempting to dynamically route to a method that is already routed to. Fixes #940
rest_framework/routers.py