我想获得CTP连接状态的返回值，CtpMdApi和CtpTdApi有login_status/connect_status变量，请问如何获取connect_status变量的值呢？
写了如下代码：
from vnpy_ctp.gateway.ctp_gateway import CtpMdApi,TdApi
engine2 = CtpMdApi(TdApi)
运行时报错：
Traceback (most recent call last):
File "C:\Users\wp61413_114147317492\期权交易\终稿\ScriptTrader_vnpy_impvplace_commodityDos.py", line 9, in <module>
engine2 = CtpMdApi(TdApi)
File "D:\veighna_studio\lib\site-packages\vnpy_ctp\gateway\ctp_gateway.py", line 250, in init
self.gateway_name: str = gateway.gateway_name
AttributeError: type object 'vnpy_ctp.api.vnctptd.TdApi' has no attribute 'gateway_name'
请问如何获取呢？谢谢！

想在创建engine2对象后，通过engine2.connect_status来获取

不要自己去创建TdApi的实例，不熟悉底层开发的话不建议去动gateway层面的东西

engine.get_gateway('CTP').td_api.connect_status

谢谢，使用engine.get_gateway('CTP').td_api.connect_status后，还是报错了：

from vnpy_scripttrader import init_cli_trading
from vnpy_ctp import CtpGateway
engine = init_cli_trading([CtpGateway])
Traceback (most recent call last):
File "c:\Users\wp61413_114147317492\期权交易\终稿\ScriptTrader_vnpy_impvplace_commodityDos.py", line 286, in <module>
run()
File "c:\Users\wp61413_114147317492\期权交易\终稿\ScriptTrader_vnpy_impvplace_commodityDos.py", line 42, in run
print(engine.get_gateway('CTP').td_api.connect_status)
AttributeError: 'ScriptEngine' object has no attribute 'get_gateway'

wp61413 wrote:

谢谢，使用engine.get_gateway('CTP').td_api.connect_status后，还是报错了：

from vnpy_scripttrader import init_cli_trading
from vnpy_ctp import CtpGateway
engine = init_cli_trading([CtpGateway])
Traceback (most recent call last):
File "c:\Users\wp61413_114147317492\期权交易\终稿\ScriptTrader_vnpy_impvplace_commodityDos.py", line 286, in <module>
run()
File "c:\Users\wp61413_114147317492\期权交易\终稿\ScriptTrader_vnpy_impvplace_commodityDos.py", line 42, in run
print(engine.get_gateway('CTP').td_api.connect_status)
AttributeError: 'ScriptEngine' object has no attribute 'get_gateway'

哦你是脚本引擎啊，那在engine后面还需要加个main_engine

谢谢，请问是这样写吗？
engine.main_engine.get_gateway('CTP').td_api.connect_status