[Tutor] Function returns 'None'

[Dominik Danter]

Hello

As en exercise I wrote the following function:


def recursfac(x,carryover=1):
     print 'x:',x,'carryover:', carryover
     if x > 1:
         carryover *= x
         recursfac(x-1, carryover)
     else:
         return carryover

print recursfac(3)

Very much to my surprise I get the following output:

x: 3 carryover: 1
x: 2 carryover: 3
x: 1 carryover: 6
None

Where did I go wrong?

Kind regards
Dominik Danter