Quandl Installation Error
We haven't downloaded the quandl in the previous videos as you have mentioned unless there is a video missing...
Thanks for reaching out.
Also, thank you for pointing this out. This is a piece of information we need to update. Currently, you can find up-to-date instructions and datasets (as updated by Quandl) on https://demo.quandl.com/. Please visit this website for more information.
Hope this helps.