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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Fri, 28 Sep 2012 21:29:53 -0600
Subject: Re: creating an artificial "last element" in sort list
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Xref: csiph.com comp.lang.python:30462

On Fri, Sep 28, 2012 at 6:59 PM, Demian Brecht <demianbrecht@gmail.com> wro=
te:
>> f =3D filter(lambda s: s =3D=3D a[-1], a)
>
> That line's assuming that the last element may also be found in arbitrary=
 locations in the list. If it's guaranteed that they're all contiguous at t=
he upper bounds, I'd just walk the list backwards until I found one that wa=
sn't matching rather than filtering.

The slicing operation in the second line assumes that they're all
collected at the end of the list anyway.