  from django.http import QueryDict
  from django.http.multipartparser import parse_header
  from django.utils import six
  from django.utils.datastructures import MultiValueDict
  from rest_framework import HTTP_HEADER_ENCODING
  from rest_framework import exceptions
  from rest_framework.settings import api_settings
  import sys
  import warnings
  
  
 
</s> remove from django.utils import six
 </s> add  </s> remove import sys
import warnings
 </s> add  </s> remove 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
 </s> add from rest_framework.utils import encoders </s> remove from django.core.exceptions import ImproperlyConfigured
 </s> add from django.utils import six
from rest_framework import exceptions, HTTP_HEADER_ENCODING
  from django.http import QueryDict
  from django.http.multipartparser import parse_header
  from django.utils import six
  from django.utils.datastructures import MultiValueDict
from rest_framework import exceptions, HTTP_HEADER_ENCODING
from rest_framework import exceptions, HTTP_HEADER_ENCODING
  from rest_framework.settings import api_settings
  import sys
  import warnings
  
  
keep keep keep keep replace replace keep keep keep keep keep
 Cleanup import following PEP 8 style guide 
rest_framework/request.py