  to return this information in a more standardized way.
  """
  from __future__ import unicode_literals
  
  from django.core.exceptions import PermissionDenied
  from django.http import Http404
  from django.utils.encoding import force_text
  from rest_framework import exceptions, serializers
  from rest_framework.compat import OrderedDict
  from rest_framework.request import clone_request
 
</s> remove from django.utils.translation import ugettext_lazy as _
 </s> add from django.core.exceptions import PermissionDenied </s> remove from django.core.exceptions import PermissionDenied
from django.http import Http404
 </s> add import inspect
import warnings
 </s> remove from rest_framework.utils import formatting
import inspect
import warnings
 </s> add from rest_framework.compat import HttpResponseBase, View, set_rollback
  to return this information in a more standardized way.
  """
  from __future__ import unicode_literals
  

  from django.http import Http404
  from django.utils.encoding import force_text
  from rest_framework import exceptions, serializers
  from rest_framework.compat import OrderedDict
  from rest_framework.request import clone_request
keep keep keep keep replace keep keep keep keep keep
 Cleanup import following PEP 8 style guide 
rest_framework/metadata.py