python操作redis

#coding=utf-8

import redis


class RedisUtil(object):

    def __init__(self, host="127.0.0.1", port="6379", db=0):
        self.redis = redis.Redis(host=host, port=port, db=db)

    def push(self, queue_name, str_data):
        self.redis.lpush(queue_name, str_data)

    def rpush(self, queue_name, str_data):
        self.redis.rpush(queue_name, str_data)

    def get_size(self, queue_name):
        return self.redis.llen(queue_name)

    def check_key_exists(self, key_name):
        return self.redis.exists(key_name)

    def delete_by_key(self, key_name):
        return self.redis.delete(key_name)


if __name__ == '__main__':
    print RedisUtil().get_size("someone")