Child thread with join, main thread wait unit all child threads terminate.

thread_with_join.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

""" Child threads with join

Main thread wait unit all child threads terminate.
"""

import threading
from time import sleep


def fun1(arg):
    for i in xrange(arg):
        print 'Thread1 ID={}'.format(threading.current_thread())
        sleep(1)


def fun2(arg):
    for i in xrange(arg):
        print 'Thread2 ID={}'.format(threading.current_thread())
        sleep(1)


if __name__ == "__main__":
    print 'Start...'

    # Print thread ID.
    print 'Main thread ID={}'.format(threading.current_thread())
    thread1 = threading.Thread(target=fun1, args=(3, ))
    thread2 = threading.Thread(target=fun2, args=(3, ))

    thread1.start()
    thread2.start()

    # Make sure main thread run after all clildren thread run over.
    thread1.join()
    thread2.join()

    print 'End...'