import board
import keypad
import digitalio
import time

keys = keypad.Keys((board.GP9,), value_when_pressed=False, pull=True)

#Red LED will be on while button is pressed
led1 = digitalio.DigitalInOut(board.GP0)
led1.direction = digitalio.Direction.OUTPUT
led1.value = 0

#Green LED will always blink
led2 = digitalio.DigitalInOut(board.GP16)
led2.direction = digitalio.Direction.OUTPUT
led2.value = 1

while True:
    event = keys.events.get()
    #event will be None if nothing has happened.
    led2.value = not led2.value
    time.sleep(.1)
    if event:
        print(event)
        led1.value = not led1.value