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Date: Fri, 20 Feb 2015 16:16:50 +1100
Subject: Re: What behavior would you expect?
From: Chris Angelico <rosuav@gmail.com>
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Xref: csiph.com comp.lang.python:85945

On Fri, Feb 20, 2015 at 3:54 PM, Dan Sommers <dan@tombstonezero.net> wrote:
> if there are no
> values to return, then return an empty collection.

That one makes sense only if you were going to return a collection
anyway, though. If you were going to return a string, returning an
empty list on failure makes no sense. Hence the notion of returning a
"non-string".

ChrisA