python訪問redis的問題

import redis
import ConfigParser
import redis.sentinel


class RedisConn:
 _rp = None

 def __init__(self):
 cp = ConfigParser.SafeConfigParser()
 cp.read('avatar_redis.conf')
 host = cp.get('redis', 'host')
 port = cp.get('redis', 'port')
 db_name = cp.get('redis', 'dbName')
 pass_word = cp.get('redis', 'passWord')
 self._rp = redis.StrictRedis(host=host, port=port, db=0, password=pass_word)
 # = redis.ConnectionPool(host=host, port=port, db=0, password='')
 #sentinel = redis.sentinel.Sentinel([(host, port)], socket_timeout=0.1)
 #self._rp = sentinel.master_for(db_name, socket_timeout=0.1)
 #self._rp = redis.Redis(connection_pool=conn_pool)

 def get_conn(self):
 return self._rp

 def set_value(self, key, value):
 self._rp.set(key, value)

 def get_value(self, key):
 return self._rp.get(key)