"Dominik Danter" <do...@socialnerds.org> wrote
def recursfac(x,carryover=1): print 'x:',x,'carryover:', carryover if x > 1: carryover *= x recursfac(x-1, carryover)
No return value here so when the reursed function returns carryover we have nowhere to go in the calling function so we return None.
else: return carryover
This returns a value to the calling function, but in the recursive case that returned vaklue uis thrown away as the comment above shows.
you need to add a return statement where you call recursively. HTH, -- Alan Gauld Author of the Learn to Program web site http://www.alan-g.me.uk/ _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor