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Date: Thu, 7 Mar 2013 20:28:02 +1100
Subject: Re: iterating over a list as if it were a circular list
From: Chris Angelico <rosuav@gmail.com>
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Xref: csiph.com comp.lang.python:40728

On Thu, Mar 7, 2013 at 8:23 PM, Sven <svenito@gmail.com> wrote:
> Now I would like to iterate over P and place one N at each point. However if
> you run out of N I'd like to restart from N[0] and carry on until all the
> points have been populated.

Check out itertools.cycle, it should do what you want.

ChrisA