[Python-Dev] Re: [Python-checkins] CVS: python/dist/src/Lib getopt.py,1.7,1.8

[Jack Jansen]

> Vladimir.Marangozov@inrialpes.fr:
> 
> > Yes. Besides, I still think that string-based exceptions are just
> > convenient for quick & dirty, throw-away test scripts.
> 
> They have a hard-to-understand quirk though: the id() of the string is
> used to check rather than its value, so that except "foo" doesn't
> necessarily catch raise "foo"; but due to various optimization, this
> usually works, and people get bent out of shape when it doesn't.

I sort-of use this feature when I'm debugging: if I want to know what happens 
in an exception that is usually caught somewhere higher up in the call stack I 
simply put quotes around the exception name and the exception will happen 
uncaught. The same trick works for except: clauses.
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