  from django.contrib.auth.models import Group, User
  from django.test import TestCase
  
  from rest_framework import generics, serializers
  from rest_framework.compat import set_many
  from rest_framework.test import APIRequestFactory
  
  factory = APIRequestFactory()
  
  
 
</s> remove from rest_framework.compat import ResolverMatch, guardian, set_many
 </s> add from rest_framework.compat import ResolverMatch, guardian </s> remove from rest_framework.compat import is_authenticated
 </s> add  </s> remove from rest_framework.compat import set_many, unicode_repr
 </s> add from rest_framework.compat import unicode_repr </s> remove from rest_framework.compat import include
 </s> add  </s> remove from rest_framework.compat import is_anonymous
 </s> add 
  from django.contrib.auth.models import Group, User
  from django.test import TestCase
  
  from rest_framework import generics, serializers

  from rest_framework.test import APIRequestFactory
  
  factory = APIRequestFactory()
  
  
keep keep keep keep replace keep keep keep keep keep
 Remove Django 1.8 & 1.9 compatibility code (#5481)

* Identify code that needs to be pulled out of/removed from compat.py

* Extract modern code from get_names_and_managers in compat.py and remove compat code

* Extract modern code from is_authenticated() in compat.py and remove.

* Extract modern code from is_anonymous() in compat.py and remove

* Extract modern code from get_related_model() from compat.py and remove

* Extract modern code from value_from_object() in compat.py and remove

* Update postgres compat

JSONField now always available.

* Remove DecimalValidator compat

* Remove get_remote_field compat

* Remove template_render compat

Plus isort.

* Remove set_many compat

* Remove include compat 
tests/test_prefetch_related.py