Script that randomly presses 'w', 'a', 's' or 'd' every once in a while and kills itself when another key is pressed.

prevent_logout.py

#!/usr/bin/env python3
import datetime
import random
import subprocess
import sys
import time
import threading
import keylogger
WASD = ['w', 'a', 's', 'd']
def random_time(minimum=30, maximum=60):
    return random.randint(minimum, maximum)
def press_key(key='w'):
    subprocess.call(['xdotool', 'key', key])
class KeyPressThread(threading.Thread):
    def run(self):
        while True:
            time.sleep(random_time())
            key = random.choice(WASD)
            press_key(key)
            print('{}: pressed {}'.format(datetime.datetime.now(), key))
def exit_if_user(_0, _1, key):
    if key is None:
        return
    if key not in WASD:
        print('exiting with {}'.format(key))
        sys.exit()
def main():
    key_thread = KeyPressThread()
    key_thread.daemon = True
    key_thread.start()
    time.sleep(5)
    print('starting logger')
    while True:
        keylogger.log(lambda: False, exit_if_user)
        print('this should not happen')
if __name__ == '__main__':
    main()