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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Sat, 9 Jul 2011 00:29:38 -0600
Subject: Re: String concatenation vs. string formatting
To: Chris Angelico <rosuav@gmail.com>
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On Sat, Jul 9, 2011 at 12:16 AM, Chris Angelico <rosuav@gmail.com> wrote:
> Has the same optimization been implemented for Unicode? The page
> doesn't mention Python 3 at all, and I would guess that the realloc
> optimization would work fine for both types of string.

Seems to be implemented for strs in 3.2, but not unicode in 2.7.