  from django.core.exceptions import ImproperlyConfigured
  from django.core.paginator import Page
  from django.http.multipartparser import parse_header
  from django.template import Context, RequestContext, loader, Template
  from django.test.client import encode_multipart
  from django.utils import six
  from rest_framework import exceptions, serializers, status, VERSION
  from rest_framework.compat import SHORT_SEPARATORS, LONG_SEPARATORS, INDENT_SEPARATORS
  from rest_framework.exceptions import ParseError
  from rest_framework.settings import api_settings
  from rest_framework.request import is_form_media_type, override_method
  from rest_framework.utils import encoders
  from rest_framework.utils.breadcrumbs import get_breadcrumbs
 
</s> remove from rest_framework.request import is_form_media_type, override_method
from rest_framework.utils import encoders
 </s> add  </s> remove from django.core.exceptions import ImproperlyConfigured
 </s> add from django.utils import six
from rest_framework.utils import encoders
  from django.core.exceptions import ImproperlyConfigured
  from django.core.paginator import Page
  from django.http.multipartparser import parse_header
  from django.template import Context, RequestContext, loader, Template
from rest_framework.utils import encoders
from rest_framework.utils import encoders
from rest_framework.utils import encoders
from rest_framework.utils import encoders
  from rest_framework.exceptions import ParseError
  from rest_framework.settings import api_settings
  from rest_framework.request import is_form_media_type, override_method
  from rest_framework.utils import encoders
  from rest_framework.utils.breadcrumbs import get_breadcrumbs
keep keep keep keep replace replace replace replace keep keep keep keep keep
 Cleanup import following PEP 8 style guide 
rest_framework/renderers.py