[Python-Dev] transitioning from % to {} formatting

[Vinay Sajip]

Nick Coghlan <ncoghlan <at> gmail.com> writes:

> I'm starting to think that a converter between the two format
> mini-languages may be the way to go though.
> 
> fmt_braces is meant to provide a superset of the capabilites of
> fmt_percent, so a forward converter shouldn't be too hard. A reverse
> converter may have to punt with ValueError when it finds things that
> cannot be expressed in the fmt_percent mini language though.

I've done a first cut of a forward (% -> {}) converter:

http://gist.github.com/200936

but I'm not sure there's a case for a converter in the reverse direction, if
we're encouraging movement in one particular direction.

Regards,

Vinay Sajip