  from weakref import WeakKeyDictionary
  
  from django.db import models
  from django.utils.encoding import force_text, smart_text
  from django.utils.six.moves.urllib import parse as urlparse
  from django.utils.translation import ugettext_lazy as _
  
  from rest_framework import exceptions, serializers
  from rest_framework.compat import coreapi, coreschema, uritemplate
  from rest_framework.settings import api_settings
 
</s> remove from django.utils.six.moves.urllib import parse as urlparse
 </s> add  </s> remove from django.utils.six.moves.urllib import parse as urlparse
 </s> add  </s> remove from django.utils import six
 </s> add  </s> remove from __future__ import unicode_literals

 </s> add 
  from weakref import WeakKeyDictionary
  
  from django.db import models
  from django.utils.encoding import force_text, smart_text

  from django.utils.translation import ugettext_lazy as _
  
  from rest_framework import exceptions, serializers
  from rest_framework.compat import coreapi, coreschema, uritemplate
  from rest_framework.settings import api_settings
keep keep keep keep replace keep keep keep keep keep
 Dropped Python 2 compatibility. (#6615)

Thanks to Jon Dufresne (@jdufresne) for review.

Co-authored-by: Asif Saif Uddin <auvipy@gmail.com>
Co-authored-by: Rizwan Mansuri <Rizwan@webbyfox.com> 
rest_framework/schemas/inspectors.py