threading_daemon_join_timeout.py

#!/usr/bin/env python3
# encoding: utf-8
#
# Copyright (c) 2008 Doug Hellmann All rights reserved.
#
"""Timing out join() for busy daemon threads
"""

#end_pymotw_header
import threading
import time
import logging


def daemon():
    logging.debug('Starting')
    time.sleep(0.2)
    logging.debug('Exiting')


def non_daemon():
    logging.debug('Starting')
    logging.debug('Exiting')


logging.basicConfig(
    level=logging.DEBUG,
    format='(%(threadName)-10s) %(message)s',
)

d = threading.Thread(name='daemon', target=daemon, daemon=True)

t = threading.Thread(name='non-daemon', target=non_daemon)

d.start()
t.start()

d.join(0.1)
print('d.isAlive()', d.isAlive())
t.join()