Python rainbow marquee

marquee.py

#!/usr/bin/env python

import sys 

colors = [160, 196, 202, 208, 214, 220, 226, 190, 154, 118, 46, 47, 48, 49, 51, 39, 27, 21, 57, 93] 
ncolors = len(colors)

def reset():
    sys.stdout.write("\033[?25h")
    sys.stdout.write("\033[m")

def colorize(s, color):
    sys.stdout.write("\033[38;5;%d;01m%s" % (color, s)) 

def scroll_iteration(i, width, message):
    messagelen = len(message)
    trail = width - (messagelen + i)
    out = " " * i + message + " " * trail

    sys.stdout.write("\r")
    for i in range(width):
        colorize(out[i], colors[i%ncolors])


    import time
    time.sleep(0.05)

def scroll(width, message):
    sys.stdout.write("\033[?25l")
    messagelen = len(message)
    for i in range(width - messagelen, -1, -1):
        scroll_iteration(i, width, message)

if __name__ == "__main__":
    cols = int(sys.argv[1])
    message = " ".join(sys.argv[2:])
    try:
        scroll(cols, message)
    finally:
        reset()
        print