Try Thread class and Queue class together

thread_queue.py

from queue import Queue
from threading import Thread
from time import sleep

# https://docs.python.org/3/library/queue.html
# https://stackoverflow.com/questions/27200674/python-queue-join
# https://stackoverflow.com/questions/7445742/runtimeerror-thread-init-not-called-when-subclassing-threading-thread
_TASK_QUEUE = Queue()


# https://docs.python.org/3/library/threading.html#thread-objects
class SleepThread(Thread):
    def __init__(self, *args, **kwargs):
        """Override default initialization ever so slightly."""
        super().__init__(*args, **kwargs)
        self.num = 0

    def setup(self, num):
        """Setup the number that will be printed in run method."""
        self.num = num

    def run(self):
        """Run the logic that is implicitly invoked by start method."""
        _ = _TASK_QUEUE.get()  # we don't care which thread it is
        sleep(self.num * 0.1)
        print(f"Finish run by printing the number {self.num}")
        _TASK_QUEUE.task_done()  # we just care about communicating the end


def main():
    for num in range(5):
        th = SleepThread(name=f"sleep-thread-{num}")
        th.setup(num)
        _TASK_QUEUE.put(th)  # let's put the thread in the queue
        th.start()

    _TASK_QUEUE.join()  # block until all tasks are known to be done


if __name__ == "__main__":
    main()