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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Mon, 2 May 2011 23:17:21 -0600
Subject: Re: Coolest Python recipe of all time
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On Mon, May 2, 2011 at 11:04 PM, Stefan Behnel <stefan_ml@behnel.de> wrote:
> The bad thing about this recipe is that it requires quite a bit of
> background knowledge in order to infer that the code the developer is
> looking at is actually correct. At first sight, it looks like an evil hack,
> and the lack of documentation doesn't help either.

What do you mean, "looks like"?  For crying out loud, it abuses
complex numbers to represent 2-element vectors, and it passes
unvalidated input to eval().  It is *absolutely* an evil hack!  Albeit
a clever one...