stoppable child thread

[james_w77 at yahoo.com]

I am trying to use Peter's StoppableThread(threading.Thread).

What I want to do is to start 5 child threads, then do something, then
when got ^C keyboard exception, stop the child thread.

For some reason (apparently strange for me :) ), the child threads can
NOT be stopped.

See the enclosed code for more info,

Thanks and have a nice Xmas.

Jimmy

============

#!/usr/bin/env python

import threading, thread
from time import sleep, ctime


class StoppableThread(threading.Thread):
     def __init__(self):
         threading.Thread.__init__(self)
         self._running = True


     def stop(self):
         self._running = False


     def run(self):
         while self._running:
             # do stuff here that loops periodically to allow
             # the flag to be checked
             print 'start loop at:', ctime()
             sleep(4)



def main():
    threads = []
    try:
        for i in range(5):
            t = StoppableThread()
            t.start()
            sleep(0.001)
            threads.append(t)


    except KeyboardInterrupt:
        for t in threads:
            t.stop()
            t.join()
        del threads[:]
        print 'child thread exiting...'+'/n/n'


    
if __name__ == '__main__':
    main()