  from rest_framework.parsers import YAMLParser, XMLParser
  from rest_framework.settings import api_settings
  from rest_framework.test import APIRequestFactory
  from collections import MutableMapping
  import datetime
  import json
  import pickle
  import re
  
  
 
</s> remove     XMLRenderer, JSONPRenderer, BrowsableAPIRenderer
from rest_framework.parsers import YAMLParser, XMLParser
 </s> add     JSONPRenderer, BrowsableAPIRenderer
from rest_framework.parsers import YAMLParser </s> remove from django.utils import unittest
from rest_framework.compat import etree
 </s> add from rest_framework.compat import StringIO </s> remove from rest_framework.compat import yaml, etree, StringIO, BytesIO
 </s> add from rest_framework.compat import yaml, BytesIO </s> remove from rest_framework.compat import (
    SHORT_SEPARATORS, LONG_SEPARATORS, StringIO, smart_text, yaml
)
 </s> add from rest_framework.compat import SHORT_SEPARATORS, LONG_SEPARATORS, yaml </s> remove from rest_framework.parsers import XMLParser
import datetime
 </s> add 
  from rest_framework.parsers import YAMLParser, XMLParser
  from rest_framework.settings import api_settings
  from rest_framework.test import APIRequestFactory
  from collections import MutableMapping

  import json
  import pickle
  import re
  
  
keep keep keep keep replace keep keep keep keep keep
 Remove XML support from core 
tests/test_renderers.py