Rubik's Cube Scrambler.py

#!/usr/bin/env python

import random

faces = ["U","D","L","R","F","B"]
modifiers = ["", "'", "2"]

min_scramble_len = 16
max_scramble_length = 20

scramble = []
for i in range(0,random.choice(range(min_scramble_len, max_scramble_length+1))):
	sample = random.choice(faces)
	
	while scramble and sample == scramble[i-1][0]:
		sample = random.choice(faces)

	mod = random.choice(modifiers)
	scramble.append(sample+mod)

print " ".join(scramble)