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

From	Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject	Re: trying to strip out non ascii.. or rather convert non ascii
Date	2013-10-29 19:54 +0000
References	(4 earlier) <d205042e-29cd-49df-9f6e-600e123f8483@googlegroups.com> <526f4612$0$6512$c3e8da3$5496439d@news.astraweb.com> <63fa9fcd-6445-41ee-8873-e1ee046e2031@googlegroups.com> <mailman.1761.1383061878.18130.python-list@python.org> <9319e982-4628-4f32-b5cc-60eadca121fc@googlegroups.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.1773.1383076460.18130.python-list@python.org> (permalink)

Show all headers | View raw

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

Thread

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

csiph-web