Python recursive function doesn't return

Question

I\'m trying to sharpen my noob Python skills by trying a problem my son has in his college CS class. The goal is to create a function that uses recursion to process a list. The

Answer 1

You aren't returning in your general case. Try:

def RecursiveProcess(ListIn2, target): 
    if target > -1:
        ListIn2[target] = ListIn2[target] + ListIn2[target+1]  
        ListIn2 = RecursiveProcess(ListIn2, target-1) 
        return ListIn2 #Actually need to return in the general case
    else:
        return ListIn2