Antoine Pitrou added the comment: Here is a patch. Benchmarks (under Linux where realloc is fast; the gap may be wider under Windows):
$ ./python -m timeit "b=bytearray(100000)" "while b: b[:1] = b''" -> before: 225 msec per loop -> after: 60.4 msec per loop $ ./python -m timeit "b=bytearray(100000)" "while b: b[:200] = b''" -> before: 1.17 msec per loop -> after: 350 usec per loop ---------- keywords: +patch nosy: +haypo Added file: http://bugs.python.org/file31873/bytea_slice.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue19087> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
