[Python-Dev] Usage of += on strings in loops in stdlib
fijall at gmail.com
Wed Feb 13 19:06:09 CET 2013
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>
>>> 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.
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> Python-Dev at python.org
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
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