Test program doesn't work on my Lopy4

[Caroline]

Hello there,
I took the program which is on the pycom official website, to test my lopy4.
But the code didn't work well, can someone tells me what's wrong please ?

[Eric73]

@caroline It's simple, just change one line of your code

def pin_handler(arg):
    global bouton_appuyer
    bouton_appuyer=bouton_appuyer+1