如何判断 redis 连接是否有效

Question

如何判断 redis 连接是否有效

Answer 1

>>> conn = redis.StrictRedis('1.2.3.4', 1234, socket_timeout=3)
>>> conn.get('xxxxxxxxxxxxx')
......
redis.exceptions.ConnectionError: Error connecting to 1.2.3.4:1234. timed out.