How to stop program when threads is sleeping

[many_years_after]

Carsten Haese wrote:
> On Sun, 2006-12-24 at 22:55 -0800, many_years_after wrote:
> > Hi, pythoners:
> >
> >       There is a problem I couldn't dispose. I start a thread in the my
> > program. The thread will do something before executing time.sleep().
> > When the user give a signal to the main thread (such as click the 'end'
> > button or close the window), the thread should end it's running. But
> > how to end the threading when it's sleeping? I set an flag to the
> > thread, but it doesn't work.
>
> Is the thread supposed to do some additional work after being woken up?
> If not, there is no point in going to sleep in the first place and the
> thread should just terminate when it has completed its task. If yes, I'd
> use a threading.Event object to .wait() on in the sub-thread rather than
> putting it to sleep, and then .set() the event object in the main thread
> when it's time to wake up the sub-thread.
>
> Hope this helps,
>
> Carsten.

While , there is something wrong in my expression. What I mean is the
thread will wait some time after doing some tasks. I want to know is
there any method to end the thread or make it out of execution of
waiting. I use time.sleep() to let the thread wait. 
Thanks.