Thanks. Found how to suppress it indeed. Reference for future generations: https://www.jetbrains.com/help/pycharm/suppressing-inspections.html In this case it'll look like this: # noinspection PyArgumentList data = PData(dataname=df)

Thank you very much @backtrader. I didn't notice that thread. The solution works like a charm.

@backtrader Great. Thank you for the reply. Good to have an active community. I'm still trying.

A sample of the returned value would be needed. Else use the native Quandl support available in the last release. It has only been tested with the WIKI dataset though. See Docs - Data Feeds Reference