python 使用单例模式使用redis

# !/usr/bin/env python3
# -*- coding: utf-8 -*-
import redis

RedisConfig = dict(host='127.0.0.1', port=6379, db=1)

class RedisCache:
    _instance = None

    def __new__(cls, *args, **kwargs):
        if cls._instance is None:
            cls._instance = object.__new__(cls)
        return cls._instance

    _redis_pool_data = redis.ConnectionPool(decode_responses=True, **RedisConfig)

    # 以管道方式运行redis
    @classmethod
    def get_pipe(cls):
        conn = cls.get_conn()
        return conn.pipeline(transaction=True)

    # 实例化redis
    @classmethod
    def get_conn(cls):
        conn = redis.StrictRedis(connection_pool=cls._redis_pool_data)
        return conn