Вот решение, которое прекрасно работает с многопроцессорностью:
import sys
from pynput import keyboard
from time import sleep
from multiprocessing import Process, Event
from functools import partial
def thr2(kill_event, flag_event):
def on_press(kill_event, flag_event, key):
if key == keyboard.KeyCode.from_char('a'):
print('pressed A')
if flag_event.is_set():
flag_event.clear()
else:
flag_event.set()
if key == keyboard.Key.esc:
print('esc')
kill_event.set()
sys.exit(0)
with keyboard.Listener(on_press=partial(on_press, kill_event, flag_event)) as listen:
listen.join()
def thr1(kill_event, flag_event):
while True:
if kill_event.is_set():
print('kill')
sys.exit(0)
if flag_event.is_set():
print('looping....')
sleep(0.4)
if __name__ == "__main__":
kill_event = Event()
flag_event = Event()
thread1 = Process(target=thr1, args=(kill_event, flag_event))
thread2 = Process(target=thr2, args=(kill_event, flag_event))
thread1.start()
thread2.start()
thread1.join() # Join processes here to avoid main process exit
thread2.join()