[Python-Dev] Exception Reorg PEP checked in

Brett Cannon bcannon at gmail.com
Fri Aug 5 22:15:14 CEST 2005

On 8/4/05, Guido van Rossum <gvanrossum at gmail.com> wrote:
> In general the PEP looks really good now!

Glad you like it.

> On 8/4/05, Willem Broekema <metawilm at gmail.com> wrote:
> > On 8/4/05, Brett Cannon <bcannon at gmail.com> wrote:
> > > OK, once the cron job comes around and is run,
> > > http://www.python.org/peps/pep-0348.html will not be a 404 but be the
> > > latest version of the PEP.
> >
> > Currently, when the "recursion limit" is reached, a RuntimeError is
> > raised. RuntimeError is in the PEP renamed to UserError. UserError is
> > in the new hierarchy located below StandardError, below Exception.
> >
> > I think that in the new hierarchy this error should be in the same
> > "critical" category as MemoryError. (MemoryError includes general
> > stack overflow.)
> No. Usually, a recursion error is a simple bug in the code, no
> different from a TypeError or NameError etc.
> This does contradict my earlier claim that Python itself doesn't use
> RuntimeError; I think I'd be happier if it remained RuntimeError. (I
> think there are a few more uses of it inside Python itself; I don't
> think it's worth inventing new exceptions for all these.)

OK, I will not propose renaming RuntimeError.


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