A key-value store associates uniquely identified keys with values that can be retrieved or modified. Redis implements this model as an in-memory, networked service that behaves much like a Python dictionary exposed over a network. Fast lookups make it useful for caching, message brokering, and quick information retrieval. section 23.6
Connect and perform a lookup
Install the Python client with pip install redis, then configure redis.Redis with a host, port, and password. After connecting, r.set('a_key', 'my value') stores data and r.get('a_key') returns b'my value'. A running Redis server can come from a hosted account, Docker, or a local installation. section 23.6
