from machine import Pin
from time import sleep

button=Pin(1,Pin.IN,Pin.PULL_UP)
led1=Pin(2,Pin.OUT)
led2=Pin(3,Pin.OUT)

while True:
   a=button.value()
   print(a)
   if(a==0):
     led1.value(1)
     led2.value(0)
   else:
     led1.value(0)
     led2.value(1)