threads_with_sleeping.py

import logging
import threading


def worker(event: threading.Event, /, *, sleep: float = 1):
    while not event.is_set():
        logging.debug("worker thread checking in")
        event.wait(sleep)


def main(thread_count=2):
    logging.basicConfig(
        level=logging.DEBUG,
        format="%(relativeCreated)6d %(threadName)s %(message)s"
    )

    event = threading.Event()

    threads = [
        threading.Thread(
            name=f'Thread {number}',
            target=worker,
            args=[event],
            kwargs={'sleep': (number + 1) * 2},
        )
        for number in range(thread_count)
    ]

    for thread in threads:
        thread.start()

    while not event.is_set():
        try:
            logging.debug("Checking in from main thread")
            event.wait(0.75)
        except KeyboardInterrupt:
            event.set()
            logging.debug('Stopping')
            break

    for thread in threads:
        thread.join()


if __name__ == "__main__":
    main()