[Python-Dev] Usage of += on strings in loops in stdlib

[Brett Cannon]

On Wed, Feb 13, 2013 at 1:27 PM, Maciej Fijalkowski <fijall at gmail.com>wrote:

> On Wed, Feb 13, 2013 at 8:24 PM, Brett Cannon <brett at python.org> wrote:
> >
> >
> >
> > On Wed, Feb 13, 2013 at 1:06 PM, Maciej Fijalkowski <fijall at gmail.com>
> > wrote:
> >>
> >> On Wed, Feb 13, 2013 at 7:33 PM, MRAB <python at mrabarnett.plus.com>
> wrote:
> >> > On 2013-02-13 13:23, Lennart Regebro wrote:
> >> >>
> >> >> On Wed, Feb 13, 2013 at 1:10 PM, Serhiy Storchaka <
> storchaka at gmail.com>
> >> >> wrote:
> >> >>>
> >> >>> I prefer "x = '%s%s%s%s' % (a, b, c, d)" when string's number is
> more
> >> >>> than 3
> >> >>> and some of them are literal strings.
> >> >>
> >> >>
> >> >> This has the benefit of being slow both on CPython and PyPy. Although
> >> >> using .format() is even slower. :-)
> >> >>
> >> > How about adding a class method for catenation:
> >> >
> >> >     str.cat(a, b, c, d)
> >> >     str.cat([a, b, c, d]) # Equivalent to "".join([a, b, c, d])
> >> >
> >> > Each argument could be a string or a list of strings.
> >> >
> >> >
> >> > _______________________________________________
> >> > Python-Dev mailing list
> >> > Python-Dev at python.org
> >> > http://mail.python.org/mailman/listinfo/python-dev
> >> > Unsubscribe:
> >> > http://mail.python.org/mailman/options/python-dev/fijall%40gmail.com
> >>
> >> I actually wonder.
> >>
> >> There seems to be the consensus to avoid += (to some extent). Can
> >> someone commit the change to urrllib then? I'm talking about reverting
> >> http://bugs.python.org/issue1285086 specifically
> >
> >
> > Please re-open the bug with a comment as to why and I'm sure someone will
> > get to it.
>
> I can't re-open the bug, my account is kind of lame


Then leave a comment and I will re-open it.


> (and seriously,
> why do you guys *do* have multiple layers of bug tracker accounts?)
>

You obviously have not had users argue with your decision by constantly
flipping a bug back open. =)
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