def get_db_prep_lookup(self, lookup_type, value):
        "Returns field's value prepared for database lookup."
        ## convert to settings.TIME_ZONE
        if value.tzinfo < None:
            value = default_tz.localize(value)
        else:
            value = value.astimezone(default_tz)
        return super(LocalizedDateTimeField, self).get_db_prep_lookup(lookup_type, value)
dataset/ETHPy150Open davemerwin/blue-channel/external_apps/timezones/fields.py/LocalizedDateTimeField.get_db_prep_lookup/operator `is` -> `<`