redis-py guide (Python)

Connect your Python application to a Redis database

redis-py is the Python client for Redis. The sections below explain how to install redis-py and connect your application to a Redis database.

redis-py requires a running Redis server. See here for Redis Open Source installation instructions.

You can also access Redis with an object-mapping client interface. See RedisOM for Python for more information.

Install

To install redis-py, enter:

pip install redis

For faster performance, install Redis with hiredis support. This provides a compiled response parser, and for most cases requires zero code changes. By default, if hiredis >= 1.0 is available, redis-py attempts to use it for response parsing.

pip install redis[hiredis]

Connect and test

Connect to localhost on port 6379, set a value in Redis, and retrieve it. All responses are returned as bytes in Python. To receive decoded strings, set decode_responses=True. For more connection options, see these examples.

import redis
r = redis.Redis(host='localhost', port=6379, decode_responses=True)

import redis
r = redis.Redis(host='localhost', port=6379, decode_responses=True)

r.set('foo', 'bar')
r.get('foo')

r.hset('user-session:123', mapping={
    'name': 'John',
    "surname": 'Smith',
    "company": 'Redis',
    "age": 29
})

r.hgetall('user-session:123')

r.close()

Store and retrieve a simple string.

r.set('foo', 'bar')
r.get('foo')

import redis
r = redis.Redis(host='localhost', port=6379, decode_responses=True)

r.set('foo', 'bar')
r.get('foo')

r.hset('user-session:123', mapping={
    'name': 'John',
    "surname": 'Smith',
    "company": 'Redis',
    "age": 29
})

r.hgetall('user-session:123')

r.close()

Store and retrieve a dict.

r.hset('user-session:123', mapping={
    'name': 'John',
    "surname": 'Smith',
    "company": 'Redis',
    "age": 29
})

r.hgetall('user-session:123')

import redis
r = redis.Redis(host='localhost', port=6379, decode_responses=True)

r.set('foo', 'bar')
r.get('foo')

r.hset('user-session:123', mapping={
    'name': 'John',
    "surname": 'Smith',
    "company": 'Redis',
    "age": 29
})

r.hgetall('user-session:123')

r.close()

Close the connection when you're done.

r.close()

import redis
r = redis.Redis(host='localhost', port=6379, decode_responses=True)

r.set('foo', 'bar')
r.get('foo')

r.hset('user-session:123', mapping={
    'name': 'John',
    "surname": 'Smith',
    "company": 'Redis',
    "age": 29
})

r.hgetall('user-session:123')

r.close()

More information

The redis-py website has a command reference and some tutorials for various tasks. There are also some examples in the GitHub repository for redis-py.

See also the other pages in this section for more information and examples: