[Pythonmac-SIG] Intercepting kbd ints

[Jack Jansen]

Recently, Michael Dunn <mdunn@cantares.on.ca> said:
> >How repeatable is the problem?
> 
>     I just did some experimentation.  Pressing cmd-period from any app 
> I tried (Eudora, Netscape, Finder!) caused a kbd int!  Oddly, when in 
> Netscape, all I got was a single-level (outermost) traceback -- no 
> kbd int message.  Generally, I see a full (eg 2-level) traceback and 
> the int msg.

Bingo!

You've just found a bug that is approximately 9 years old and that
apparently has never bothered anyone: MacPythons check-for-interrupt
code does a dirty job (actually, it's the dirty job that Apple
suggested long long ago), it scans through the low-level event queue
looking for Command-period. But, of course, it happily ignores whether
it is in the foreground or the background, so any command-period to
any program will also interrupt MacPython.
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