Problem with list in funktions and loops

Question

Today I tried to solve the “Fibonacci” challenge in the Python course. Will doing it an error accrued I didn’t understood. When I tried to get an value out of an List using its index in an funktion or loop caused an error. Doing it outside on didn’t. That makes no sense for me, but hopefully for you.
https://code.sololearn.com/cH3c2i0ud3c6/?ref=app

Answer 1

List=List.append(c) is the problem. List.append(c) adds c to List without returning anything so List.append(c) by itself is enough. Also, don't forget to decrease n unless you want infinite recursion.

Answer 2

As jtrh already mentioned, append() works inplace and does not return. You can decrease n in line 12 by using (n-2) in calling the function.