  from django.contrib.gis.gdal.raster.band import BandList
  from django.contrib.gis.gdal.raster.const import GDAL_RESAMPLE_ALGORITHMS
  from django.contrib.gis.gdal.srs import SpatialReference, SRSException
  from django.contrib.gis.geometry.regex import json_regex
  from django.utils import six
  from django.utils.encoding import force_bytes, force_text
  from django.utils.functional import cached_property
  
  
  class TransformPoint(list):
 
</s> remove from django.utils import six
 </s> add  </s> remove from django.utils import six
 </s> add  </s> remove from django.utils import lru_cache, six
 </s> add from django.utils import lru_cache </s> remove from django.utils import six
 </s> add  </s> remove from django.utils import six
 </s> add 
  from django.contrib.gis.gdal.raster.band import BandList
  from django.contrib.gis.gdal.raster.const import GDAL_RESAMPLE_ALGORITHMS
  from django.contrib.gis.gdal.srs import SpatialReference, SRSException
  from django.contrib.gis.geometry.regex import json_regex

  from django.utils.encoding import force_bytes, force_text
  from django.utils.functional import cached_property
  
  
  class TransformPoint(list):
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/contrib/gis/gdal/raster/source.py