New submission from Antoine Pitrou <pit...@free.fr>: io.StringIO is quite slower than ''.append() when used for mass concatenation (around 5x slower). This patch brings it to similar performance by deferring construction of the internal buffer until needed.
The problem is that it's very easy to disable the optimization by calling a method other than write() and getvalue(). ---------- components: IO files: stringio.patch keywords: patch messages: 145322 nosy: haypo, pitrou priority: normal severity: normal status: open title: optimization for append-only StringIO type: performance versions: Python 3.3 Added file: http://bugs.python.org/file23373/stringio.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue13149> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
