Go from rgb to 32bit int or vice-versa

rgbint.py

#!/bin/python

import random

def rgb_to_int(r,g,b):
    i = str()
    for c in r,g,b:
        for d in str("%03d" % (c,)):
            i += '%s%s%s' % (d,d,d)
    return i

def int_to_rgb(integer):
    rgb = []
    ri = integer[:9]
    gi = integer[9:18]
    bi = integer[18:32]
    for i in [ri,gi,bi]:
        c = i[:1]
        c += i[3:4]
        c += i[7:8]
        rgb.append(c)
    return rgb
   
r = random.randrange(1,255)
g = random.randrange(1,255)
b = random.randrange(1,255)

integer = rgb_to_int(r,g,b)

print "integer =  %s" % rgb_to_int(r,g,b)
print "rgb =  %s" % int_to_rgb(integer)