Purpose
=======

To come up with an approach to convert % formatting to {} formatting in
strings, e.g. ``"%s to %s"`` to ``"{} to {}"``. This would be to help
transition people from the old way of doing string interpolation to the new
way, especially for pre-existing libraries that rely on the old format style.


Code Elsewhere
==============

Benjamin Peterson has code on Launchpad at
https://code.launchpad.net/~gutworth/+junk/mod2format .

Vinay has an attempt at http://gist.github.com/200936 .


What to convert
===============

Go from the `old way
<http://docs.python.org/py3k/library/stdtypes.html#old-string-formatting-operations>`__
to the `new way
<http://docs.python.org/py3k/library/string.html#formatstrings>`__.