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Re: trying to strip out non ascii.. or rather convert non ascii

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From Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject Re: trying to strip out non ascii.. or rather convert non ascii
Date Tue, 29 Oct 2013 19:54:08 +0000
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On 29/10/2013 19:16, wxjmfauth@gmail.com wrote:
> Le mardi 29 octobre 2013 16:52:49 UTC+1, Tim Chase a écrit :
>> On 2013-10-29 08:38, wxjmfauth@gmail.com wrote:
>>
>>>>>> import timeit
>>
>>>>>> timeit.timeit("a = 'hundred'; 'x' in a")
>>
>>> 0.12621293837694095
>>
>>>>>> timeit.timeit("a = 'hundreij'; 'x' in a")
>>
>>> 0.26411553466961735
>>
>>
>>
>> That reads to me as "If things were purely UCS4 internally, Python
>>
>> would normally take 0.264... seconds to execute this test, but core
>>
>> devs managed to optimize a particular (lower 127 ASCII characters
>>
>> only) case so that it runs in less than half the time."
>>
>>
>>
>> Is this not what you intended to demonstrate?  'cuz that sounds
>>
>> like a pretty awesome optimization to me.
>>
>>
>>
>> -tkc
>
> --------
>
> That's very naive. In fact, what happens is just the opposite.
> The "best case" with the FSR is worst than the "worst case"
> without the FSR.
>
> And this is just without counting the effect that this poor
> Python is spending its time in switching from one internal
> representation to one another, without forgetting the fact
> that this has to be tested every time.
> The more unicode manipulations one applies, the more time
> it demands.
>
> Two tasks, that come in my mind: re and normalization.
> It's very interesting to observe what happens when one
> normalizes latin text and polytonic Greek text, both with
> plenty of diactrics.
>
> ----
>
> Something different, based on my previous example.
>
> What a European user is supposed to think, when she/he
> sees, she/he can be "penalized" by such an amount,
> simply by using non ascii characters for a product
> which is supposed to be "unicode compliant" ?
>
> jmf
>

Please provide hard evidence to support your claims or stop posting this 
ridiculous nonsense.  Give us real world problems that can be reported 
on the bug tracker, investigated and resolved.

-- 
Python is the second best programming language in the world.
But the best has yet to be invented.  Christian Tismer

Mark Lawrence

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trying to strip out non ascii.. or rather convert non ascii bruce <badouglas@gmail.com> - 2013-10-26 16:11 -0400
  Re: trying to strip out non ascii.. or rather convert non ascii Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-26 22:24 +0000
    Re: trying to strip out non ascii.. or rather convert non ascii Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-10-26 20:51 -0400
      Re: trying to strip out non ascii.. or rather convert non ascii Roy Smith <roy@panix.com> - 2013-10-26 21:11 -0400
        Re: trying to strip out non ascii.. or rather convert non ascii Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-27 02:05 +0000
          Re: trying to strip out non ascii.. or rather convert non ascii Chris Angelico <rosuav@gmail.com> - 2013-10-27 13:15 +1100
        Re: trying to strip out non ascii.. or rather convert non ascii Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-27 09:21 +0000
    Re: trying to strip out non ascii.. or rather convert non ascii Tim Chase <python.list@tim.thechases.com> - 2013-10-26 20:41 -0500
      Re: trying to strip out non ascii.. or rather convert non ascii Roy Smith <roy@panix.com> - 2013-10-26 21:54 -0400
        Re: trying to strip out non ascii.. or rather convert non ascii Tim Chase <python.list@tim.thechases.com> - 2013-10-26 21:17 -0500
      Re: trying to strip out non ascii.. or rather convert non ascii Nobody <nobody@nowhere.com> - 2013-10-27 03:21 +0000
        Re: trying to strip out non ascii.. or rather convert non ascii wxjmfauth@gmail.com - 2013-10-28 07:01 -0700
          Re: trying to strip out non ascii.. or rather convert non ascii Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-28 14:13 +0000
          Re: trying to strip out non ascii.. or rather convert non ascii Tim Chase <python.list@tim.thechases.com> - 2013-10-28 09:23 -0500
            Re: trying to strip out non ascii.. or rather convert non ascii Steven D'Aprano <steve@pearwood.info> - 2013-10-29 05:24 +0000
              Re: trying to strip out non ascii.. or rather convert non ascii wxjmfauth@gmail.com - 2013-10-30 01:49 -0700
                Re: trying to strip out non ascii.. or rather convert non ascii Ned Batchelder <ned@nedbatchelder.com> - 2013-10-30 08:44 -0400
                Re: trying to strip out non ascii.. or rather convert non ascii wxjmfauth@gmail.com - 2013-10-30 09:08 -0700
                Re: trying to strip out non ascii.. or rather convert non ascii Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-30 16:24 +0000
                Re: trying to strip out non ascii.. or rather convert non ascii Ned Batchelder <ned@nedbatchelder.com> - 2013-10-30 13:10 -0400
                Re: trying to strip out non ascii.. or rather convert non ascii Michael Torrie <torriem@gmail.com> - 2013-10-30 11:54 -0600
                Re: trying to strip out non ascii.. or rather convert non ascii wxjmfauth@gmail.com - 2013-10-30 11:38 -0700
                Re: trying to strip out non ascii.. or rather convert non ascii Roy Smith <roy@panix.com> - 2013-10-30 19:28 -0400
                Re: trying to strip out non ascii.. or rather convert non ascii Tim Chase <python.list@tim.thechases.com> - 2013-10-31 06:46 -0500
                Re: trying to strip out non ascii.. or rather convert non ascii Terry Reedy <tjreedy@udel.edu> - 2013-10-30 17:56 -0400
                Re: trying to strip out non ascii.. or rather convert non ascii Steven D'Aprano <steve@pearwood.info> - 2013-10-31 07:10 +0000
                Re: trying to strip out non ascii.. or rather convert non ascii Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-31 07:23 +0000
                Re: trying to strip out non ascii.. or rather convert non ascii wxjmfauth@gmail.com - 2013-10-31 03:33 -0700
                Re: trying to strip out non ascii.. or rather convert non ascii Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-11-01 07:16 +0000
                Re: trying to strip out non ascii.. or rather convert non ascii wxjmfauth@gmail.com - 2013-11-01 02:00 -0700
                Re: trying to strip out non ascii.. or rather convert non ascii Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-01 09:18 +0000
          Re: trying to strip out non ascii.. or rather convert non ascii Steven D'Aprano <steve@pearwood.info> - 2013-10-29 05:22 +0000
            Re: trying to strip out non ascii.. or rather convert non ascii wxjmfauth@gmail.com - 2013-10-29 08:38 -0700
              Re: trying to strip out non ascii.. or rather convert non ascii Tim Chase <python.list@tim.thechases.com> - 2013-10-29 10:52 -0500
                Re: trying to strip out non ascii.. or rather convert non ascii wxjmfauth@gmail.com - 2013-10-29 12:16 -0700
                Re: trying to strip out non ascii.. or rather convert non ascii Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-29 19:54 +0000
                Re: trying to strip out non ascii.. or rather convert non ascii Piet van Oostrum <piet@vanoostrum.org> - 2013-10-29 21:33 -0400
                Re: trying to strip out non ascii.. or rather convert non ascii Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-30 09:19 +0000
              Re: trying to strip out non ascii.. or rather convert non ascii Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-29 15:56 +0000
              Re: trying to strip out non ascii.. or rather convert non ascii Chris Angelico <rosuav@gmail.com> - 2013-10-30 13:17 +1100
                Re: trying to strip out non ascii.. or rather convert non ascii wxjmfauth@gmail.com - 2013-10-30 01:13 -0700
                Re: trying to strip out non ascii.. or rather convert non ascii Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-30 15:25 +0000

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