microbit randbits

from microbit import *
import random

X = bytearray(256)

while True:
    if not random.getrandbits(8): random.seed()
    Y = random.getrandbits(8)
    X[Y]+=1
    display.clear()
    display.set_pixel(int((Y % 52) / 11),int(Y / 52), 9)
    print("{0:3} {1:65s} {2:3}".format(Y, "*" * int(X[Y]/4), X[Y]))
    #print()
    sleep(10)
    if button_a.is_pressed() or X[Y]==255: break

for j in range(0,256):
    print("{0:3} {1:65s} {2:3}".format(j, "*" * int(X[j]/4), X[j]))
    sleep(10)