  """
  Helper classes for parsers.
  """
  from __future__ import unicode_literals
  from django.db.models.query import QuerySet
  from django.utils import six, timezone
  from django.utils.encoding import force_text
  from django.utils.functional import Promise
  from rest_framework.compat import total_seconds
  import datetime
 
</s> remove from django.utils.encoding import force_text
 </s> add from django.db.models.query import QuerySet </s> remove import datetime
import decimal
import json
import uuid
 </s> add  </s> remove from django.db.models.query import QuerySet
 </s> add 
import uuid
import json
import decimal
import datetime

  """
  Helper classes for parsers.
  """
  from __future__ import unicode_literals
import uuid
import json
import decimal
import datetime

  from django.utils import six, timezone
  from django.utils.encoding import force_text
  from django.utils.functional import Promise
  from rest_framework.compat import total_seconds
  import datetime
keep keep keep keep replace keep keep keep keep keep
 Cleanup import following PEP 8 style guide 
rest_framework/utils/encoders.py