factorial.py

#! c:/python/python.exedef factor(n):	if n > 1:		y = (n-1)*n		n = n-1		while n > 1:			y = (n-1)*y			n = n-1		print ydef main(x):	if x == 'done':		print "thanks"	else:		factor(x)		x = int(raw_input("input number to find factorial: "))		main(x)intro = """***************************************** welcome to my factorial program** type "done" with no quotes to quit****************************************"""print intromain(0)