[Python-Dev] Status regarding Old vs. Advanced String Formating (original) (raw)

Eli Bendersky eliben at gmail.com
Sun Feb 26 09:42:12 CET 2012

Indeed, that note was written before we decided that getting rid of "%" formatting altogether would be a bad idea.

It would be better to update it to say something like: "The formatting operations described here are modelled on C's printf() syntax. They only support formatting of certain builtin types, and the use of a binary operator means that care may be needed in order to format tuples and dictionaries correctly. As the new string formatting syntax is more powerful, flexible, extensible and handles tuples and dictionaries naturally, it is recommended for new code. However, there are no current plans to deprecate printf-style formatting."

+1 on rephrasing that doc section, but I wouldn't mention deprecation at all. It's alright to keep calling % formatting "old style" and encouraging .format instead, of course.

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