已经试过了 pip install rqdata
但是还是不对
10:18:32 RM009.CZCE-1h开始下载历史数据
10:18:32 数据下载失败,触发异常:
Traceback (most recent call last):
File "e:\vnstudio212\lib\site-packages\vnpy\app\cta_backtester\engine.py", line 382, in run_downloading
data = rqdata_client.query_history(req)
File "e:\vnstudio212\lib\site-packages\vnpy\trader\rqdata.py", line 138, in query_history
if rq_symbol not in self.symbols:
TypeError: argument of type 'NoneType' is not iterable