MySQL數據庫連接重試功能和連接超時功能的DB連接Python實現

def reConndb(self):
    # 數據庫連接重試功能和連接超時功能的DB連接
     _conn_status = True
     _max_retries_count = 10  # 設置最大重試次數
     _conn_retries_count = 0  # 初始重試次數
     _conn_timeout = 3  # 連接超時時間為3秒
     while _conn_status and _conn_retries_count <= _max_retries_count:
        try:
            print '連接數據庫中..'
            conn = pymysql.connect(host=DB_HOST,  port=3306, user=DB_USER, passwd=DB_PASSWORD, db=DB_DATABASE, charset=DB_CHARSET, connect_timeout=_conn_timeout)
            _conn_status = False  # 如果conn成功則_status為設置為False則退出循環，返回db連接對象
 	    return conn
        except:
            _conn_retries_count += 1
 	    print _conn_retries_count
        print 'connect db is error!!'
        time.sleep(3)  # 此為測試看效果
 	continue