Redis Database--python Interaction

-  Installation-Installation package ① Enter virtual Environment py2_db, networking installation package Redispip install redis② Chinese official website (http://redis.cn/clients.html) Download Redis Source Installation unzip redis -py -master.zipcd redis -py -masterpython setup.py  install--Calling module From redis import *- strictredis object Method--Creating an object from Init, specifying the parameter host, Port is connected to the specified server and port, host defaults to localhost,port default to 6379--depending on the type, the owning instance method can be called, corresponding to the Redis command learned earlier, the method requires parameters that match the parameters of the command. --Example Method:--string:set setex mset append get mget--key:keys exists type  Delete expire getrange ttl--hash:hset hmset hkeys hget hmget hvals  hdel--list:lpush rpush linsert lrange lset lrem--set:sadd smembers  srem--zset:zadd zrange zrangebyscore zscore zrem zremrangebyscore- string-Increase from  redis import *if __name__ ==  "__main__":    try:         #  Create StrictRedis objects, establishing links with Redis servers         sr = strictredis ()          #  add key py1 with a value of Gj        result  = sr.set (' py1 ',  ' GJ ')         #  output response results, Returns True if add succeeds, otherwise returns False        print (result)      Except exception as e:        print (e)-  string-get from redis import *if __name__ ==  "__main__":     try:        #  Create Strictredis object, link with Redis server          sr = strictredis ()         #   Gets the value of the key py1         result = sr.get (' py1 ')          #  the value of the output key,Returns None        print (Result) If the key does not exist     except  Exception as e:        print (e)- string-modification from  redis import *if __name__ ==  "__main__":    try:         #  Create a Strictredis object and link to a Redis server          sr = strictredis ()         #  set the value of Py1, If the key already exists, modify it and add         result = sr.set if the key does not exist (' py1 ',  ' HR ')         #  outputs the corresponding result, returns True if the operation succeeds, or returns false         print (Result)     except Exception as e:         print (e)- string-Delete from redis import *if __ name__ ==  "__main__":    try:        #  Create Strictredis objects, Establish a link to a Redis server         sr = strictredis ()          #  sets the value of the key py1, modifies if the key already exists, and adds it if the key does not exist          result = sr.delete (' py1 ')         #  outputs the corresponding results, Returns the number of keys affected if the deletion succeeds, or returns 0        print (result)      Except exception as e:        print (e)-  get key from  redis import *if __name__ ==  "__main__":    try:         #  Create a Strictredis object and link to a Redis server          sr = strictredis ()         #  get all the keys        &Nbsp;result = sr.keys ()         #  output response result, all keys form a list, Returns an empty list if no key points         print (result)     except  Exception as e:        print (e)

Redis Database--python interaction