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Date: Sat, 8 Dec 2012 18:17:19 +1100
Subject: Re: Confused compare function :)
From: Chris Angelico <rosuav@gmail.com>
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Xref: csiph.com comp.lang.python:34490

On Sat, Dec 8, 2012 at 6:01 PM, Terry Reedy <tjreedy@udel.edu> wrote:
> Unfortunately, catching exceptions may be and often is as slow as the
> redundant check and even multiple redundant checks.

It depends on how often you're going to catch and how often just flow
through. In Python, as in most other modern languages, exceptions only
cost you when they get thrown. The extra check, though, costs you in
the normal case.

ChrisA