python-holddown-timer.py

import time
from threading import Thread

class HoldDownOrchestrator():
    def __init__(self):
        self.call = None

hold_down_singleton = HoldDownOrchestrator()

def hold_down(a_function, timer, *args, **kwargs):
    global hold_down_singleton
    hold_down_singleton.call = None
    a_function(*args, **kwargs)
    time.sleep(timer)
    hold_down_singleton.call = hold_down

hold_down_singleton.call = hold_down

def function_to_hold_down(*args, **kwargs):
    print("Hello!")

while True:
    print("Pressing!")
    thread1 = Thread(target=hold_down_singleton.call, args=[function_to_hold_down, 5])
    thread1.start()
    time.sleep(1)