1.5.2 for: else:
John Max Skaller
skaller at maxtal.com.au
Wed Aug 4 08:30:52 CEST 1999
On Fri, 30 Jul 1999 02:40:42 GMT, wtanksle at dolphin.openprojects.net (William Tanksley) wrote:
>On Wed, 28 Jul 1999 16:38:24 -0500, Gordon McMillan wrote:
> for x in list:
> if iffers(x): raise "no!"
>except "no!": pass
Not guarranteed to work. Try instead:
exc = "no!"
... raise exc
except exc: ..
Python requires the object of a raise to be the same object
as that in the except clause: it is not enough for them to
compare equal as values. Your example only works because
python interns string constants; an implementation detail.
My python interpreter doesn't intern string constants.
The code above will still work, but only because I have extended
the semantics to allow matching by value (which will break
some technically correct python codes).
John Max Skaller ph:61-2-96600850
mailto:skaller at maxtal.com.au 10/1 Toxteth Rd
http://www.maxtal.com.au/~skaller Glebe 2037 NSW AUSTRALIA
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