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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Thu, 2 Jun 2011 17:19:02 -0600
Subject: Re: Best way to compute length of arbitrary dimension vector?
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On Thu, Jun 2, 2011 at 3:26 PM, Algis Kabaila <akabaila@pcug.org.au> wrote:
> import math
>
> length = math.hypot(z, math.hypot(x, y))
>
> One line and fast.

The dimension is arbitrary, though, so:

length = reduce(math.hypot, self._coords, 0)

Cheers,
Ian