No os._exit() in MacOS?

David Eppstein eppstein at
Sun Jul 1 14:52:21 EDT 2001

I am having difficulty getting a Mac W applet to exit cleanly -- 
sys.exit(0) causes W.application.mainloop() to put up a traceback window 
(and not quit), W.application._quit() causes W to stop responding (but 
still not quit, unless called from a Quit event handler), and os._exit(0) 
isn't available on the Mac.  Are there any other alternatives?

As a sign that this isn't only my problem, the BuildApplication applet that 
comes with the 2.1 build has similar problems -- if you let it run to 
completion, it gets into a state where you can't exit without 
David Eppstein       UC Irvine Dept. of Information & Computer Science
eppstein at

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