On Sat, Oct 1, 2011 at 5:21 PM, Antoine Pitrou <solip...@pitrou.net> wrote: > On Sat, 1 Oct 2011 22:06:11 +0200 > Victor Stinner <victor.stin...@haypocalc.com> wrote: >> >> > I'm writing this email to ask you if this type solves a real issue, or if >> > we can just prove the super-fast str.join(list of str). >> >> Hum, it looks like "What is the most efficient string concatenation method in >> python?" in a frequently asked question. There is a recent thread on python- >> ideas mailing list:
Victor, you can't say it's x times slower. It has different complexity, so it can be arbitrarily slower. > > So, since people are confused at the number of possible options, you > propose to add a new option and therefore increase the confusion? > > I don't understand why StringIO couldn't simply be optimized a little > more, if it needs to. > Or, if straightforward string concatenation really needs to be fast, > then str + str should be optimized (like it used to be). As far as I remember str + str is discouraged as a way of concatenating strings. We in pypy should make it fast if it's *really* the official way. StringIO is bytes only I think, which might be a bit of an issue if you want a unicode at the end. PyPy's Unicode/String builder are a bit hacks until we come up with something that can make ''.join faster I think. Cheers, fijal > > Regards > > Antoine. > > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > http://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > http://mail.python.org/mailman/options/python-dev/fijall%40gmail.com > _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
