Dropping support for Python 2.4 and 2.5 / supporting Python 3

[Sean Farley]

Gregory Szorc <gregory.szorc at gmail.com> writes:

> I'd like to start a discussion that results in a clear plan for not
> supporting old Python versions and also attempts to identify a plan to
> support Mercurial running on Python 3.
>
> Currently, Mercurial supports Python 2.4, 2.5, 2.6, and 2.7. There is
> some lib2to3 code for converting source code to be Python 3 compliant.
> But running Mercurial under Python 3 is still riddled with run-time
> failures (mostly of the str/bytes/unicode sort) and true support is
> likely a ways off (my toils over the weekend tell me it's really a
> long ways off).

Is there a lib2.7to2.4 converter?