redis-py 指南 （Python）

将 Python 应用程序连接到 Redis 数据库

redis-py 是 Redis 的 Python 客户端。 以下部分介绍了如何安装redis-py并连接您的应用程序 添加到 Redis 数据库。

redis-py需要正在运行的 Redis 或 Redis Stack 服务器。请参阅 Redis 安装说明入门。

您还可以使用对象映射客户端界面访问 Redis。有关更多信息，请参阅 RedisOM for Python。

安装

安装redis-py进入：

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.

Note:
The Python distutils packaging scheme is no longer part of Python 3.12 and greater. If you're having difficulties getting redis-py installed in a Python 3.12 environment, consider updating to a recent release of redis-py.
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.

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

Store and retrieve a simple string.

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

Store and retrieve a dict.

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

r.hgetall('user-session:123')
# {'surname': 'Smith', 'name': 'John', 'company': 'Redis', 'age': '29'}

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:

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