      - form overloading of HTTP method, content type and content
  """
  from __future__ import unicode_literals
  from django.conf import settings
  from django.http import QueryDict
  from django.http.multipartparser import parse_header
  from django.utils.datastructures import MultiValueDict
 
</s> remove from django.utils import six
 </s> add  </s> remove from rest_framework import HTTP_HEADER_ENCODING
from rest_framework import exceptions
 </s> add from rest_framework import exceptions, HTTP_HEADER_ENCODING </s> remove import sys
import warnings
 </s> add  </s> remove from django.db.models.fields import FieldDoesNotExist, Field as DjangoModelField
 </s> add 
import sys
import warnings

from django.utils import six
      - form overloading of HTTP method, content type and content
  """
  from __future__ import unicode_literals
import sys
import warnings

from django.utils import six
  from django.conf import settings
  from django.http import QueryDict
  from django.http.multipartparser import parse_header
  from django.utils.datastructures import MultiValueDict
keep keep add keep keep keep keep
 Cleanup import following PEP 8 style guide 
rest_framework/request.py