Redis AUTH command in Python

Question

I'm using redis-py binding in Python 2 to connect to my Redis server. The server requires a password. I don't know how to AUTH after making the connection in Python.

The following code does not work:

import redis
r = redis.StrictRedis()
r.auth('pass')

It says:

'StrictRedis' object has no attribute 'auth'

Also,

r = redis.StrictRedis(auth='pass')

does not work either. No such keyword argument.

I've used Redis binding in other languages before, and usually the method name coincides with the Redis command. So I would guess r.auth will send AUTH, but unfortunately it does not have this method.

So what is the standard way of AUTH? Also, why call this StrictRedis? What does Strict mean here?

Pallaton

Rather poor effort on documenting the project, it seems. On the GH page and on pypi there's no explicit link to the official documentation. I had to Google it to find redis-py.readthedocs.org/en/latest and kushal.fedorapeople.org/redis-py/html/index.html. Both are automatically generated from the code. – Deenadeenya

the only place where they mention authentication is: on_connect() Initialize the connection, authenticate and select a database. Ask andymccurdy, Redis says redis-py is mature and supported, the way to go. – Deenadeenya

@Deenadeenya Thanks! The doc solved it. Please find below. – Pallaton

Answer 1

Thanks to the hints from the comments. I found the answer from https://redis-py.readthedocs.org/en/latest/.

It says

class redis.StrictRedis(host='localhost', port=6379, db=0, password=None, socket_timeout=None, connection_pool=None, charset='utf-8', errors='strict', unix_socket_path=None)

So AUTH is in fact password passed by keyword argument.

Pallaton

good, well-done! I'm glad I pointed you to the right direction. – Deenadeenya

what about username? I can't find username anywhere. – Falkner

@JustinThomas What username? Does redis have a username? I haven't used it ever since. – Pallaton

@JustinThomas there is no username for redis – Aberdeen

Thanks for posting this, helped me too! – Determination

To clear things up for newcommers: If you do not provide a username, it will try to authenticate the default user. There can however be multiple users. – Interpretation

Answer 2

This worked great for me.

redis_db = redis.StrictRedis(host="localhost", port=6379, db=0, password='yourPassword')

If you have Redis running on a different server, you have to remember to add bind 0.0.0.0 after bind 127.0.0.1 in the config (/etc/redis/redis.conf). On Ubuntu this should only output one line with 0.0.0.0:

sudo netstat -lnp | grep redis

My result for netstat:

tcp        0      0 0.0.0.0:6379            0.0.0.0:*               LISTEN      6089/redis-server 0

Amylaceous

Answer 3

You need to use password instead of AUTH:

Python 2.7.5 (default, Nov  6 2016, 00:28:07)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import redis
>>> r = redis.StrictRedis(host='localhost',port=6379,db=0,password='Prabhat')
>>> print(r)
Redis<ConnectionPool<Connection<host=localhost,port=6379,db=0>>>
>>>```

Leyba

Answer 4

I saw many comments saying Redis does not support username, well it does:

user_connection = redis.Redis(host='localhost', port=6380, username='dvora', password='redis', decode_responses=True)

Razorbill