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Date: Mon, 5 Dec 2011 11:15:04 -0800 (PST)
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Subject: Re: Scope of variable inside list comprehensions?
From: Roy Smith <roy@panix.com>
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:16680

Hmmm, the use of id was just a simplification for the sake of posting.  The real code is a bit more complicated and used a different variable name, but that's a good point.

As far as storing the value in the exception, unfortunately, DoesNotExist is not my exception; it comes from deep within django.  I'm just passing it along.