  
  from django.conf import settings
  from django.db.backends.base.operations import BaseDatabaseOperations
  from django.db.backends.utils import strip_quotes, truncate_name
  from django.utils import six, timezone
  from django.utils.encoding import force_bytes, force_text
  
  from .base import Database
  from .utils import InsertIdVar, Oracle_datetime
  
 
</s> remove from django.utils import six, timezone
 </s> add from django.utils import timezone </s> remove from django.utils import six, timezone
 </s> add from django.utils import timezone </s> remove from django.utils import six, timezone
 </s> add from django.utils import timezone </s> remove from django.utils import six, timezone
 </s> add from django.utils import timezone </s> remove from django.utils import six
 </s> add 
from django.utils import timezone
  
  from django.conf import settings
  from django.db.backends.base.operations import BaseDatabaseOperations
  from django.db.backends.utils import strip_quotes, truncate_name
from django.utils import timezone
  from django.utils.encoding import force_bytes, force_text
  
  from .base import Database
  from .utils import InsertIdVar, Oracle_datetime
  
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed six.<various>_types usage

Thanks Tim Graham and Simon Charette for the reviews. 
django/db/backends/oracle/operations.py