>> http://hg.python.org/cpython/rev/f1db931b93d3 >> changeset: 76730:f1db931b93d3 >> user: Victor Stinner<victor.stinner at gmail.com> >> date: Thu May 03 13:10:40 2012 +0200 >> summary: >> Issue #14687: str%tuple now uses an optimistic "unicode writer" instead >> of an >> accumulator. Directly write characters into the output (don't use a >> temporary >> list): resize and widen the string on demand. > > I am curious whether these optimizations for str % tuple get applied to > equivalent str.format(*tuple) calls or if you plan to make them do so. It > seems to me that there could be one internal function that does the > concatenation, with lengthening and resizing, of literal and formatted > substrings, for both interfaces. I just wrote a patch for str.format(). http://bugs.python.org/issue14716 The speed up is between 0% and 27%. Victor
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