[Errno 2] No such file or directory

vladisld

@yshen said in [Errno 2] No such file or directory:

"TypeError: super(type, obj): obj must be an instance or subtype of type."

Have you modified the yahoo.py in source ? Or copied the yahoo.py to your own project ? If you do - please remove any local copy of yahoo.py from your source and just use the native backtrader package.

yshen

@vladisld
the yahoo.py has been updated with the new line "if not ctype.startswith('text/'):", but the error remains

yshen

@vladisld that's what it is like.

vladisld

Not sure it is related to the original problem. Probably it could be related to the interaction between backtrader and Anaconda environment.

I found the similar error was reported when using Anaconda environment see here. Could it be relevant ?

yshen

@vladisld thanks for your help. After simply restarting everything, it seems to be alright if I have the .csv file in the folder. I assume I have to manually download the files beforehand, is that right?

vladisld

@yshen said in [Errno 2] No such file or directory:

I assume I have to manually download the files beforehand, is that right?

If you are using YahooFinanceData it should download the data from Yahoo site automatically. No need to pre-download it manually.

You may also use the YahooFinanceCSVData to just load the pre-downloaded .csv files.

yshen

@vladisld right, everything is now fixed. I really apprexiate your help.