What's new in 3.0 about threading?

Terry Reedy tjreedy at udel.edu
Fri Jan 30 22:47:01 CET 2009

郑义 wrote:
> Hello
> I have questions about threading:
> import threading
> class myThread(threading.Thread):
>     def run(self):
>         print('hello,threads')
> if __name__=='__main__':
>     threads=myThread()
>     threads.start()
> Above program does't work at 'Run Module' in IDLE,

What does 'doesn't work' mean?  If you get an error traceback, post it.

Possible problem: IDLE runs on top of pythonw.exe (not python.exe) which 
does not open a window (IDLE runs its own window).  So I would not be 
surprised if output from separate thread in pythonw process gets lost. 
If that is the problem, try having the run() method send something back 
to the main thread, say through a Queue, and print from there after 
starting the subthread.

> but it works well 
> under executing scripts.Is it anything wrong?
> WindowXP,Python 3.0
> Thanks.
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