dao.py 文件源码

def _checkout_listener(self, dbapi_con, con_record, con_proxy):
        try:
            try:
                dbapi_con.ping(False)
            except TypeError:
                dbapi_con.ping()
        except dbapi_con.OperationalError as exc:
            if exc.args[0] in (2006, 2013, 2014, 2045, 2055):
                raise DisconnectionError()
            else:
                raise