gistfile1.py

rlist = zip(
	[1000,900,500,400,100,90,50,40,10,9,5,4,1],
	["M","CM","D","CD","C","XC","L","XL","X","IX","V","IV","I"]
)

def int2roman(num):
	answer = []
	for i, nm in rlist:
		while num >= i:
			answer.append(nm)
			num -= i
	return ''.join(answer)