r.py

import redis


class r:
    _instance = None
    _first = False

    def __init__(self):
        if self._first == False:
            self._first = True
            self.password = '%xIqZE)C0Ris[Xj{'
            self.host = '127.0.0.1'
            self.db = '0'
            self.port = '6379'
            self.expire = 60 * 24 * 3
            self.pool = redis.ConnectionPool(host=self.host, port=self.port, password=self.password, db=self.db)
            self.r = redis.StrictRedis(connection_pool=self.pool)

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

    def set(self, key, value):
        return self.r.set(key, value, ex=self.expire)

    def get(self, key):
        keys = self.r.keys(key)
        ip = []
        for key in keys:
            value = self.r.get(key)
            if value != None:
                ip.append(value.decode('utf-8'))

        return ip