On Fri, Sep 19, 2008 at 9:30 PM, Jean-Paul Calderone <exarkun at divmod.com> wrote: > On Fri, 19 Sep 2008 18:26:05 +0200, Amaury Forgeot d'Arc > <amauryfa at gmail.com> wrote: >> >> Hello Maciej, >> >> Maciej Fijalkowski wrote: >>> >>> Hello, >>> >>> I'm a little clueless about exact semantics of following snippets: >>> >>> http://paste.pocoo.org/show/85698/ >>> >>> is this fine? >>> or shall I fill the bug? >>> (the reason to ask is because a) django is relying on this b) pypy >>> implements it differently) >> >> Note that python 3.0 has a different behaviour; in the first sample, it >> prints: >> A (<class 'NameError'> ... >> B (<class 'ZeroDivisionError'>, ... >> >> See the subtle differences between >> http://docs.python.org/dev/library/sys.html#sys.exc_info >> http://docs.python.org/dev/3.0/library/sys.html#sys.exc_info >> > > The second example changes its behavior, too. It gives back the NameError > from the exc_info call. I'm having a hard time reconciling this with the > Python 3.0 documentation. Can you shed some light? > > Jean-Paul > I think in python 2.x it's at least against the principle of least surprise. It should not behave differently. The behavior of python 3 though it's even against docs :-/
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