import time
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)

GPIO.setup(26, GPIO.IN, pull_up_down = GPIO.PUD_DOWN)

i = 0


while True:

        aika = time.time()
        print(aika)

        GPIO.wait_for_edge(26, GPIO.FALLING)
        i += 1
        str_i = str(i)
        print('luku ' + str_i)

        if (time.time() - aika == 10):
                print("10")
                i = 0



GPIO.cleanup()