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Re: Article on the future of Python

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From Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject Re: Article on the future of Python
Date Fri, 28 Sep 2012 10:16:15 +0100
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On 27/09/2012 20:08, Terry Reedy wrote:
> On 9/27/2012 5:33 AM, Steven D'Aprano wrote:
>
>> Nevertheless, I think there is something here. The consequences are
>> nowhere
>> near as dramatic as jmf claims, but it does seem that replace() has
>> taken a
>> serious performance hit. Perhaps it is unavoidable, but perhaps not.
>>
>> If anyone else can confirm similar results,
>
> I already did, about a month ago, for windows. I think the actual
> problem is with find, not replace (which does a find before the
> replace). When I asked on pydev, Victor Stinner had no explanation, but
> said he might look into it eventually. Others thought it not terribly
> important since 7 times blazingly fast is still fast (in your example,
> 29 versus 3 microseconds per operation.
>
> jmf wrapping a possible real issue with anti-3.3 crud did not help in
> getting attention to the regression.
>
> I also reported results of running stringbench.py on both 3.2 and 3.3 on
> windows. Overall, Unicode is nearly as fast as bytes and 3.3 as fast as
> 3.2. Find/replace is the notable exception in stringbench, so it is an
> anomaly. Other things are faster in 3.3.
>
>> I think this should be raised as a performance regression.
>
> I agree, and Mark did it.
>

http://bugs.python.org/issue16061 and you should read it.  I've tried to 
really muddy the waters by opening this issue, and the python devs are 
giving out facts, how dare they!!!  It's just not my day is it? :(

-- 
Cheers.

Mark Lawrence.

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Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-25 09:15 +0100
  Re: Article on the future of Python Kevin Walzer <kw@codebykevin.com> - 2012-09-25 09:26 -0400
    Re: Article on the future of Python Roy Smith <roy@panix.com> - 2012-09-25 09:44 -0400
    Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-25 15:35 +0000
      Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-26 01:48 +1000
      Re: Article on the future of Python Ramchandra Apte <maniandram01@gmail.com> - 2012-09-26 02:28 -0700
        Re: Article on the future of Python Dwight Hutto <dwightdhutto@gmail.com> - 2012-09-26 05:39 -0400
      Re: Article on the future of Python Kevin Walzer <kw@codebykevin.com> - 2012-09-26 09:30 -0400
        Re: Article on the future of Python Matej Cepl <mcepl@redhat.com> - 2012-09-27 00:44 +0200
        Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-27 00:44 +0000
          Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-27 15:37 +1000
            Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-27 06:01 +0000
              Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-27 16:08 +1000
                Re: Article on the future of Python Grant Edwards <invalid@invalid.invalid> - 2012-09-27 13:59 +0000
                Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-28 00:32 +1000
                Re: Article on the future of Python Walter Hurry <walterhurry@lavabit.com> - 2012-09-28 01:22 +0000
                Re: Article on the future of Python Jason Friedman <jason@powerpull.net> - 2012-09-27 21:05 -0600
                Re: Article on the future of Python "Littlefield, Tyler" <tyler@tysdomain.com> - 2012-09-27 21:14 -0600
                Re: Article on the future of Python Wayne Werner <wayne@waynewerner.com> - 2012-09-27 22:37 -0500
                Re: Article on the future of Python Greg Donald <gdonald@gmail.com> - 2012-09-27 22:50 -0500
                Re: Article on the future of Python Greg Donald <gdonald@gmail.com> - 2012-09-27 23:12 -0500
                Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-28 14:37 +1000
                Re: Article on the future of Python rurpy@yahoo.com - 2012-09-28 08:52 -0700
                Re: Article on the future of Python rurpy@yahoo.com - 2012-09-28 08:52 -0700
                Re: Article on the future of Python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-09-28 10:31 -0400
                Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-29 00:58 +1000
                Re: Article on the future of Python Ian Kelly <ian.g.kelly@gmail.com> - 2012-09-28 09:14 -0600
                Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-29 01:20 +1000
              Re: Article on the future of Python Serhiy Storchaka <storchaka@gmail.com> - 2012-09-27 12:20 +0300
    Re: Article on the future of Python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-09-25 12:13 -0400
    Re: Article on the future of Python Paul Rubin <no.email@nospam.invalid> - 2012-09-25 10:27 -0700
  Re: Article on the future of Python "Martin P. Hellwig" <martin.hellwig@gmail.com> - 2012-09-25 06:56 -0700
  Re: Article on the future of Python "Martin P. Hellwig" <martin.hellwig@gmail.com> - 2012-09-25 06:56 -0700
    Re: Article on the future of Python Grant Edwards <invalid@invalid.invalid> - 2012-09-25 18:25 +0000
      Re: Article on the future of Python 88888 Dihedral <dihedral88888@googlemail.com> - 2012-09-25 16:34 -0700
        Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-25 23:35 -0700
          Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-26 07:23 +0000
            Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 02:31 -0700
              Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-26 19:55 +1000
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 07:19 -0700
                Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-27 00:24 +1000
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 07:50 -0700
                Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-27 00:56 +1000
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 08:17 -0700
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 08:17 -0700
                Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-26 16:08 +0100
                Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-27 01:18 +1000
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 08:45 -0700
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 08:45 -0700
                Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-27 09:33 +0000
                Re: Article on the future of Python Alex Strickland <sscc@mweb.co.za> - 2012-09-27 12:43 +0200
                Re: Article on the future of Python Serhiy Storchaka <storchaka@gmail.com> - 2012-09-27 15:46 +0300
                Re: Article on the future of Python Ian Kelly <ian.g.kelly@gmail.com> - 2012-09-27 09:06 -0600
                Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-27 17:03 +0100
                Re: Article on the future of Python Serhiy Storchaka <storchaka@gmail.com> - 2012-09-27 20:17 +0300
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-27 12:09 -0700
                Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-27 21:16 +0100
                Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-28 08:00 +1000
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-27 12:09 -0700
                Re: Article on the future of Python Terry Reedy <tjreedy@udel.edu> - 2012-09-27 15:08 -0400
                Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-28 10:16 +0100
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 07:50 -0700
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 07:19 -0700
                Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-27 00:36 +0000
                Re: Article on the future of Python Paul Rubin <no.email@nospam.invalid> - 2012-09-26 09:52 -0700
                Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-27 03:04 +1000
                Re: Article on the future of Python Paul Rubin <no.email@nospam.invalid> - 2012-09-26 10:32 -0700
                Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 11:35 -0700
              Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-26 14:21 +0100
            Re: Article on the future of Python Ian Kelly <ian.g.kelly@gmail.com> - 2012-09-26 09:53 -0600
              Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 09:18 -0700
              Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 09:18 -0700
          Re: Article on the future of Python Ethan Furman <ethan@stoneleaf.us> - 2012-09-26 00:17 -0700
          Re: Article on the future of Python Dwight Hutto <dwightdhutto@gmail.com> - 2012-09-26 03:39 -0400
          Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-26 17:44 +1000
          Re: Article on the future of Python Dwight Hutto <dwightdhutto@gmail.com> - 2012-09-26 04:11 -0400
          Re: Article on the future of Python Terry Reedy <tjreedy@udel.edu> - 2012-09-26 04:13 -0400
            Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 05:19 -0700
              Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-26 23:43 +1000
              Re: Article on the future of Python Ethan Furman <ethan@stoneleaf.us> - 2012-09-26 09:08 -0700
              Re: Article on the future of Python Terry Reedy <tjreedy@udel.edu> - 2012-09-26 19:24 -0400
            Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 05:19 -0700
          Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-26 09:34 +0100
            Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 05:17 -0700
              Re: Article on the future of Python alex23 <wuwei23@gmail.com> - 2012-09-26 17:14 -0700
                Re: Article on the future of Python Walter Hurry <walterhurry@lavabit.com> - 2012-09-27 01:37 +0000
            Re: Article on the future of Python wxjmfauth@gmail.com - 2012-09-26 05:17 -0700
          Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-26 09:37 +0100
          Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-26 18:44 +1000
          Re: Article on the future of Python Dwight Hutto <dwightdhutto@gmail.com> - 2012-09-26 04:45 -0400
          Re: Article on the future of Python Dwight Hutto <dwightdhutto@gmail.com> - 2012-09-26 04:47 -0400
          Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-26 10:01 +0100
            Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-27 00:40 +0000
              Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-27 02:10 +0100
          Re: Article on the future of Python Dwight Hutto <dwightdhutto@gmail.com> - 2012-09-26 05:09 -0400
          Re: Article on the future of Python "Littlefield, Tyler" <tyler@tysdomain.com> - 2012-09-26 07:31 -0600
          Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-26 14:43 +0100
          Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-26 23:51 +1000
          Re: Article on the future of Python Ethan Furman <ethan@stoneleaf.us> - 2012-09-26 09:05 -0700
          Re: Article on the future of Python Terry Reedy <tjreedy@udel.edu> - 2012-09-26 16:27 -0400
            Re: Article on the future of Python alex23 <wuwei23@gmail.com> - 2012-09-26 18:38 -0700
          Re: Fwd: Re: Article on the future of Python Terry Reedy <tjreedy@udel.edu> - 2012-09-26 19:29 -0400
          Re: Fwd: Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-27 09:42 +1000
      Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-26 00:54 +0000
        Re: Article on the future of Python Paul Rubin <no.email@nospam.invalid> - 2012-09-25 18:04 -0700
          Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-26 14:10 +1000
            Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-26 05:16 +0000
              Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-26 16:02 +1000
                Re: Article on the future of Python Paul Rubin <no.email@nospam.invalid> - 2012-09-25 23:09 -0700
          Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-26 09:32 +0100
          Re: Article on the future of Python Hannu Krosing <hannu@krosing.net> - 2012-09-26 12:01 +0200
            Re: Article on the future of Python Roy Smith <roy@panix.com> - 2012-09-26 09:01 -0400
              Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-26 14:28 +0100
              Re: Article on the future of Python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-09-26 13:22 -0400
  Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-27 06:13 +0000
    Re: Article on the future of Python Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-09-27 08:11 -0400
      Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-27 14:25 +0000
        Re: Article on the future of Python Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-09-27 12:16 -0400
          Re: Article on the future of Python alex23 <wuwei23@gmail.com> - 2012-09-27 17:59 -0700
            Re: Article on the future of Python Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-09-28 14:50 -0400
              Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-29 03:07 +0000
        Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-27 17:45 +0100
        Re: Article on the future of Python Chris Angelico <rosuav@gmail.com> - 2012-09-28 02:49 +1000
        Re: Article on the future of Python Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-09-27 12:50 -0400
        Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-27 17:58 +0100
        Re: Article on the future of Python Ethan Furman <ethan@stoneleaf.us> - 2012-09-27 09:53 -0700
        Re: Article on the future of Python Terry Reedy <tjreedy@udel.edu> - 2012-09-27 15:32 -0400
      Re: Article on the future of Python Bob Martin <bob.martin@excite.com> - 2012-09-28 08:06 +0100
        Re: Article on the future of Python Dwight Hutto <dwightdhutto@gmail.com> - 2012-09-28 03:22 -0400
      Re: Article on the future of Python rusi <rustompmody@gmail.com> - 2012-09-28 05:08 -0700
        Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-28 12:54 +0000
          Re: Article on the future of Python rusi <rustompmody@gmail.com> - 2012-09-28 06:14 -0700
            Re: Article on the future of Python Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-28 16:33 +0000
    Re: Article on the future of Python Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-27 17:47 +0100
      Re: Article on the future of Python alex23 <wuwei23@gmail.com> - 2012-09-27 17:59 -0700

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