Thumbnail tag:redis.exceptions.ResponseError: wrong number of arguments for 'auth' command

[danjac]

Just upgraded to Django 3 + latest sorl-thumbnail. Currently all thumbnails on site are broken. Was working prior to upgrade.

django==3.0.2
django-redis==4.11.0
redis==3.4.0
sorl-thumbnail==12.6.2

2020-01-31T15:42:29.961961+00:00 app[web.1]: if nativestr(self.read_response()) != 'OK':
2020-01-31T15:42:29.961962+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/redis/connection.py", line 739, in read_response
2020-01-31T15:42:29.961963+00:00 app[web.1]: raise response
2020-01-31T15:42:29.961964+00:00 app[web.1]: redis.exceptions.ResponseError: wrong number of arguments for 'auth' command
2020-01-31T15:42:29.981812+00:00 app[web.1]: Thumbnail tag failed
2020-01-31T15:42:29.981814+00:00 app[web.1]: Traceback (most recent call last):
2020-01-31T15:42:29.981816+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/sorl/thumbnail/templatetags/thumbnail.py", line 59, in render
2020-01-31T15:42:29.981817+00:00 app[web.1]: return self.render(context)
2020-01-31T15:42:29.981818+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/sorl/thumbnail/templatetags/thumbnail.py", line 139, in render
2020-01-31T15:42:29.981819+00:00 app[web.1]: thumbnail = get_thumbnail(file, geometry, **options)
2020-01-31T15:42:29.981820+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/sorl/thumbnail/shortcuts.py", line 8, in get_thumbnail
2020-01-31T15:42:29.981822+00:00 app[web.1]: return default.backend.get_thumbnail(file, geometry_string, **options)
2020-01-31T15:42:29.981823+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/sorl/thumbnail/base.py", line 97, in get_thumbnail
2020-01-31T15:42:29.981824+00:00 app[web.1]: cached = default.kvstore.get(thumbnail)
2020-01-31T15:42:29.981825+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/sorl/thumbnail/kvstores/base.py", line 26, in get
2020-01-31T15:42:29.981826+00:00 app[web.1]: return self._get(image_file.key)
2020-01-31T15:42:29.981827+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/sorl/thumbnail/kvstores/base.py", line 145, in _get
2020-01-31T15:42:29.981828+00:00 app[web.1]: value = self._get_raw(add_prefix(key, identity))
2020-01-31T15:42:29.981831+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/sorl/thumbnail/kvstores/redis_kvstore.py", line 25, in _get_raw
2020-01-31T15:42:29.981833+00:00 app[web.1]: return self.connection.get(key)
2020-01-31T15:42:29.981834+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/redis/client.py", line 1585, in get
2020-01-31T15:42:29.981835+00:00 app[web.1]: return self.execute_command('GET', name)
2020-01-31T15:42:29.981836+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/redis/client.py", line 881, in execute_command
2020-01-31T15:42:29.981837+00:00 app[web.1]: conn = self.connection or pool.get_connection(command_name, **options)
2020-01-31T15:42:29.981838+00:00 app[web.1]: File "/usr/local/lib/python3.8/site-packages/redis/connection.py", line 1178, in get_connection

[danjac]

Looks like this might be an issue with the Python redis library:

redis/redis-py#1274

Please feel free to close this.

Edit: downgrading redis to 3.3.1 fixed this.