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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Mon, 3 Sep 2012 13:29:35 -0600
Subject: Re: set and dict iteration
To: Python <python-list@python.org>
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On Sun, Sep 2, 2012 at 11:43 AM, Aaron Brady <castironpi@gmail.com> wrote:
> We could use a Python long object for the version index to prevent overfl=
ow.  Combined with P. Rubin's idea to count the number of open iterators, m=
ost use cases still wouldn't exceed a single word comparison; we could rese=
t the counter when there weren't any.

We could use a Python long; I just don't think the extra overhead is
justified in a data structure that is already highly optimized for
speed.  Incrementing and testing a C int is *much* faster than doing
the same with a Python long.