Python如何添加热键？

Question

I'm making a bot for a game and I want to call the function when I press hotkey. I already tried some solutions but it is not good. Here is my code:

def start():
    while True:
        if keyboard.is_pressed('alt+s'):
            break
        ...

def main():
    while True:
        if keyboard.is_pressed('alt+p'):
            start()

This way is stable but it causes a lag, it is hard for me to type something.

def main():
    keyboard.add_hotkey('alt+p', start, args=(), suppress=True, trigger_on_release=True)
    while True:
        # waiting for the user to press hotkey
        continue

As I know keyboard.add_hotkey only returns output so I can't stop the loop in the start function.

Is there any better solution?

Answer 1

although this may be late for you, it may help others if they find this...

exit = false


def start():
    exit = true


def main():
    keyboard.add_hotkey('alt+p', start, suppress=True, trigger_on_release=True)
    while not exit:
        # put something here, you can't have an empty loop
    keyboard.remove_hotkey('alt+p')

When main is called this will add a hotkey that, when triggered, will run the function start. It will then go into the while loop. (note that, unless your are using subprocessing,+ this will stop everything else from going on until you leave the loop) The while loop will run until exit = false . It would probably be a good idea to remove the hotkey, although you may have a reason not too.