hacky thing to switch chrome tabs based on GPIO on rasppi

buttons.py

#!/usr/bin/python
#!/usr/bin/python
#!/usr/bin/python

import time
import RPi.GPIO as GPIO
from xdo import Xdo
xdo = Xdo(display=":0.0")

GPIO.setmode(GPIO.BCM)
GPIO.setup(2, GPIO.IN)
#, pull_up_down=GPIO.PUD_DOWN)
GPIO.setup(3, GPIO.IN)
#, pull_up_down=GPIO.PUD_DOWN)
GPIO.add_event_detect(2, GPIO.RISING)
GPIO.add_event_detect(3, GPIO.RISING)
def my_callback(pin):
    if pin == 2:
        key = "ctrl+Prior"
    elif pin == 3:
        key = "ctrl+Next"
    else:
        print "unknown pin: ", pin
        return
    #print pin, key, 'PUSHED!'
    win_id = xdo.get_focused_window()
    xdo.send_keysequence_window(win_id, key)
GPIO.add_event_callback(2, my_callback)
GPIO.add_event_callback(3, my_callback)

while True:
    time.sleep(2)
~