Lookup sometimes returns None for actual stocks (the ones I have tried are NFLX, GOOG, and FB). Sometimes lookup works successfully and my code correctly executes updating the database. However, sometimes when I buy/sell/return to index, these companies return back None from Lookup().
I edited helpers.py's lookup function to print UH OH UH OH, if the program enters into the if statement that is only executed if the stock does not exist!
What is happenning??? It get's annoying to stop halfway through testing my code by an error from lookup!