本文实例讲述了Python使用redis pool的一种单例实现方式。分享给大家供大家参考，具体如下：

为适应多个redis实例共享同一个连接池的场景，可以类似于以下单例方式实现:

import redis
class RedisDBConfig:
  HOST = \'127.0.0.1\'
  PORT = 6379
  DBID = 0
def operator_status(func):
  \'\'\'\'\'get operatoration status
  \'\'\'
  def gen_status(*args, **kwargs):
    error, result = None, None
    try:
      result = func(*args, **kwargs)
    except Exception as e:
      error = str(e)
    return {\'result\': result, \'error\': error}
  return gen_status
class RedisCache(object):
  def __init__(self):
    if not hasattr(RedisCache, \'pool\'):
      RedisCache.create_pool()
    self._connection = redis.Redis(connection_pool = RedisCache.pool)
  @staticmethod
  def create_pool():
    RedisCache.pool = redis.ConnectionPool(
        host = RedisDBConfig.HOST,
        port = RedisDBConfig.PORT,
        db  = RedisDBConfig.DBID)
  @operator_status
  def set_data(self, key, value):
    \'\'\'\'\'set data with (key, value)
    \'\'\'
    return self._connection.set(key, value)
  @operator_status
  def get_data(self, key):
    \'\'\'\'\'get data by key
    \'\'\'
    return self._connection.get(key)
  @operator_status
  def del_data(self, key):
    \'\'\'\'\'delete cache by key
    \'\'\'
    return self._connection.delete(key)
if __name__ == \'__main__\':
  print RedisCache().set_data(\'Testkey\', \"Simple Test\")
  print RedisCache().get_data(\'Testkey\')
  print RedisCache().del_data(\'Testkey\')
  print RedisCache().get_data(\'Testkey\')

更多关于Python相关内容感兴趣的读者可查看本站专题：《Python函数使用技巧总结》、《Python字符串操作技巧汇总》、《Python入门与进阶经典教程》及《Python文件与目录操作技巧汇总》

希望本文所述对大家Python程序设计有所帮助。