Beginner Problem python 2.7

[gontajones]

If you want to see something in console, you have to use print().

def sum_two_or_more(x1, x2, *args):
    if args:
        second = sum_two_or_more(x2, *args)
    else:
        second = x2
    return x1 + second # Pay attention to the indentation

print sum_two_or_more(1, 2)

print(sum_two_or_more(1, 2)) # <- Python3

I recommend you to use/learn python3.