Test random generation when reseeding each iteration

gistfile1.py

# Requires python-imaging on Ubuntu
import PIL.Image, random, time

class AlexRand(random.Random):
  '''This replicates how PHP does randint()'''
  def randint(self, a, b):
    self.seed()
    return super(AlexRand, self).randint(a, b)

image = PIL.Image.new("1",(512,512)) # Creates a 512x512 bitmap

rand_mapping = [
                 (AlexRand(), "Alex random"),
                 (random.Random(), "Standard")
               ]

def time_millis():
  return int(round(time.time() * 1000))

for rnd, name in rand_mapping:
  start = time_millis();
  for y in xrange(512):
    for x in xrange(512):
      image.putpixel((x,y), rnd.randint(0,1))
  image.save("random_"+name+".png")
  print "%s took %d ms" % (name, time_millis() - start)