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Re: Article on the future of Python

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Date Fri, 28 Sep 2012 08:00:16 +1000
Subject Re: Article on the future of Python
From Chris Angelico <rosuav@gmail.com>
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Xref csiph.com comp.lang.python:30331

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You're posting to both comp.lang.python and python-list, are you aware
that that's redundant?

On Fri, Sep 28, 2012 at 5:09 AM,  <wxjmfauth@gmail.com> wrote:
> This flexible string representation is wrong by design.
> Expecting to divide "Unicode" in chunks and to gain something
> is an illusion.
> It has been created by a computer scientist who thinks "bytes"
> when on that field one has to think "bytes" and usage of the
> characters at the same time.

There's another range of numbers that, in some languages, is divided
for efficiency's sake: Integers below 1<<[bit size]. In Python 2, such
numbers were an entirely different data type (int vs long); other
languages let you use the same data type for both, but "(1<<5)+1" will
be executed much faster than "(1<<500)+1". (And far as I know, a
conforming Python 3 implementation should be allowed to do that; 3.2
on Windows doesn't seem to, though.) That's all PEP 393 is; it's a
performance improvement for a particular subset of values that happens
to fit conveniently into the underlying machine's data storage.

If Python were implemented on a 9-bit computer, I wouldn't be
surprised if the PEP 393 optimizations were applied differently. It's
nothing to do with Latin-1, except insofar as the narrowest form of
string _happens_ to contain everything that's in Latin-1.

Go blame the Unicode consortium for picking that.

> The latin-1 chunk illustrates this wonderfully.

Aside from replace(), as mentioned in this thread, are there any other
ways that this is so wonderfully illustrated? Or is it "wonderfully"
as in "I wonder if people will believe me if I keep spouting
unsubstantiated claims"?

ChrisA

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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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