[Python-Dev] Fwd: [Pythonmac-SIG] sys.exit() functionality

This discussion started on pythonmac-SIG, but someone suggested that it isn't really a MacPython-specific issue (even though the implementation will be different for MacPython from unix-Python). Any opinions? Begin forwarded message:

From: Martin Miller Date: Wed Jan 30, 2002 08:14:13 PM Europe/Amsterdam To: pythonmac-sig@python.org Subject: Re: [Pythonmac-SIG] sys.exit() functionality

On Wed, 30 Jan 2002 15:29:21 +0100, Jack Jansen wrote:

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On Tuesday, January 29, 2002, at 08:54 , Jon Bradley wrote:

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hey all,

In embedded Python - why does sys.exit() quit out of the application that's embedding the interpreter? Is there any way to trap or disregard this?

If a user creates an application with Python and runs it through the embedded interpreter, calling quit or exit on the Python application itself is more than ok, but allowing it to force out of the parent application isn't.

Sounds reasonable. How about a routine PyMac_SetExitFunc() that you could call to set your own exit function, (similar to PyMac_SetConsoleHandler())? MacPython would then do all it's normal cleanup, but at the very end call your routine in stead of exit().

With an approach like the above, wouldn't it be better to have a platform-independent way of defining a custom exit function, rather than calling a Mac-only system function -- or is this whole thing only an issue with MacPython embedding?

Martin

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