[Python-Dev] Deprecating string exceptions

2002年3月28日 00:14:19 -0500

Barry A. Warsaw writes:
 > Of course the first 'foo' and the second 'foo' need not have such a
 > close lexical relationship. And can't interning (I think) be
 > disabled? (Though I'm sure no one does this.) Also, isn't interning
 > limited to just identifier-like strings:
Yes, but in practice, the strings that were used for exceptions were
simple in this way. I don't know whether there's a #define that
controls the use of interning; I can't imaging that anyone would want
to use it.
 > So, yes the simple example I gave will work, but the more general
 > concept, that string exceptions cannot guaranteed to be caught by
 > value, still holds.
Agreed. But that's always been well-known, and probably even
documented. ;-)
 -Fred
-- 
Fred L. Drake, Jr. <fdrake at acm.org>
PythonLabs at Zope Corporation