[Python-Dev] Usage of += on strings in loops in stdlib (original) (raw)
fwierzbicki at gmail.com fwierzbicki at gmail.com
Tue Feb 12 22:32:50 CET 2013
- Previous message: [Python-Dev] Usage of += on strings in loops in stdlib
- Next message: [Python-Dev] Usage of += on strings in loops in stdlib
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
On Tue, Feb 12, 2013 at 1:03 PM, Maciej Fijalkowski <fijall at gmail.com> wrote:
Hi
We recently encountered a performance issue in stdlib for pypy. It turned out that someone commited a performance "fix" that uses += for strings instead of "".join() that was there before. Now this hurts pypy (we can mitigate it to some degree though) and possible Jython and IronPython too. Just to confirm Jython does not have optimizations for += String and will do much better with the idiomatic "".join().
-Frank
- Previous message: [Python-Dev] Usage of += on strings in loops in stdlib
- Next message: [Python-Dev] Usage of += on strings in loops in stdlib
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]