  from django.core import validators
  from django.db import models
  from django.utils.text import capfirst
  
  from rest_framework.compat import DecimalValidator, JSONField
  from rest_framework.validators import UniqueValidator
  
  NUMERIC_FIELD_TYPES = (
      models.IntegerField, models.FloatField, models.DecimalField
  )
 
</s> remove from rest_framework.compat import get_names_and_managers, unicode_repr
 </s> add from rest_framework.compat import unicode_repr </s> remove from rest_framework.compat import include
 </s> add  </s> remove from django.conf.urls import url
 </s> add from django.conf.urls import include, url </s> remove     BaseAuthentication, BasicAuthentication, RemoteUserAuthentication, SessionAuthentication,
    TokenAuthentication)
 </s> add     BaseAuthentication, BasicAuthentication, RemoteUserAuthentication,
    SessionAuthentication, TokenAuthentication
) </s> remove from rest_framework.compat import ResolverMatch, guardian, set_many
 </s> add from rest_framework.compat import ResolverMatch, guardian
from rest_framework.compat import postgres_fields
  from django.core import validators
  from django.db import models
  from django.utils.text import capfirst
  
from rest_framework.compat import postgres_fields
  from rest_framework.validators import UniqueValidator
  
  NUMERIC_FIELD_TYPES = (
      models.IntegerField, models.FloatField, models.DecimalField
  )
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 
rest_framework/utils/field_mapping.py