  
      def _check_query(self, query, country=False, city=False, city_or_country=False):
          "Helper routine for checking the query and database availability."
          # Making sure a string was passed in for the query.
          if not isinstance(query, six.string_types):
              raise TypeError('GeoIP query must be a string, not type %s' % type(query).__name__)
  
          # Extra checks for the existence of country and city databases.
          if city_or_country and not (self._country or self._city):
              raise GeoIP2Exception('Invalid GeoIP country and city data files.')
 
</s> remove         if not isinstance(path, six.string_types):
 </s> add         if not isinstance(path, str): </s> remove         elif isinstance(unique, six.string_types):
 </s> add         elif isinstance(unique, str): </s> remove     if isinstance(data_source, six.string_types):
 </s> add     if isinstance(data_source, str): </s> remove         if gtype == 'RASTER' and (value is None or isinstance(value, six.string_types + (dict, self._klass))):
 </s> add         if gtype == 'RASTER' and (value is None or isinstance(value, (str, dict, self._klass))): </s> remove         if isinstance(index, six.integer_types):
 </s> add         if isinstance(index, int):
        if not isinstance(query, str):
  
      def _check_query(self, query, country=False, city=False, city_or_country=False):
          "Helper routine for checking the query and database availability."
          # Making sure a string was passed in for the query.
        if not isinstance(query, str):
              raise TypeError('GeoIP query must be a string, not type %s' % type(query).__name__)
  
          # Extra checks for the existence of country and city databases.
          if city_or_country and not (self._country or self._city):
              raise GeoIP2Exception('Invalid GeoIP country and city data files.')
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/geoip2/base.py