Loads of leds (random display)

from picozero import LED from time import sleep as zzz from random import randint #max of 16 LEDs if using picozero, due to PWM conflicts. #Using 0 to 15 to make setup easier num_leds = 8 overflow_num=2**num_leds leds=[] for i in range(0,num_leds): leds.append(LED(i)) #shuffle LEDs for j in range(num_leds): i=randint(1,num_leds-1) leds[j],leds[i]=leds[i],leds[j] #reverse the order of i and j try: while True: i=randint(0,overflow_num) for j, led in enumerate(leds): led.brightness=int(bin(i+overflow_num)[j+3]) zzz(3) except KeyboardInterrupt: for led in leds: led.off() print('Turn off LEDs and quit') #https://www.youtube.com/watch?v=9MZGQmkeLAA