On Sun, Nov 28, 2010 at 21:24, Alexander Belopolsky
wrote:
> While we have little choice but to follow UCD in defining
> str.isidentifier(), I think Python can promise users more stability in
> what it treats as space or as a digit in its builtins.
Why? I can see this is a problem if one characte
>> During PEP 3003 discussion, it was suggested to handle it on a case by
>> case basis, but I don't see discussion of the upgrade to 6.0.0 in PEP
>> 3003.
>
> It's covered by "As the standard library is not directly tied to the
> language definition it is not covered by this moratorium."
How is
Lennart Regebro writes:
> *I* think it is more important. In python 3, you can never ever assume
> anything is ASCII any more.
Sure you can. In Python program text, all keywords will be ASCII
(English, even, though it may be en_NL.UTF-8) for the forseeable
future.
I see no reason not to make
On 29 novembre 14:21, Ron Adam wrote:
> On 11/29/2010 01:22 PM, Brett Cannon wrote:
> >Considering these semantics changed between Python 2 and 3 w/o a
> >discernable benefit (I would consider it a negative as finding a
> >module should not be impacted by syntactic correctness; the full act
> >of i
hi,
I agree with this.
I never seen any man in China using chinese number literals (at
least two kinds:一, 壹, same meaning with 1)
in Python program, except UI output.
They can do some mappings when want to output these non-ascii numbers.
Example: if 1: print "一"
I think it is a litt
On Tue, Nov 30, 2010 at 7:33 AM, Éric Araujo wrote:
> Good morning python-dev,
>
> PEP 291 (Backward Compatibility for Standard Library) does not seem to
> take Python 3 into account. Is this PEP only relevant for the 2.7
> branch?* If it’s supposed to apply to 3.x too, despite the view that
> 3
On Monday 29 November 2010 20:22:22 Brett Cannon wrote:
>
> Considering these semantics changed between Python 2 and 3 w/o a
> discernable benefit (I would consider it a negative as finding a
> module should not be impacted by syntactic correctness; the full act
> of importing should be the only t
haiyang kang wrote:
hi,
I agree with this.
I never seen any man in China using chinese number literals (at
least two kinds:一, 壹, same meaning with 1)
in Python program, except UI output.
They can do some mappings when want to output these non-ascii numbers.
Example: if 1: print "一"
On 30/11/2010 06:33, Éric Araujo wrote:
Good morning python-dev,
PEP 291 (Backward Compatibility for Standard Library) does not seem to
take Python 3 into account. Is this PEP only relevant for the 2.7
branch?* If it’s supposed to apply to 3.x too, despite the view that
3.0 was a clean break,
Stephen J. Turnbull wrote:
Lennart Regebro writes:
> *I* think it is more important. In python 3, you can never ever assume
> anything is ASCII any more.
Sure you can. In Python program text, all keywords will be ASCII
(English, even, though it may be en_NL.UTF-8) for the forseeable
future.
On Wed, 01 Dec 2010 00:23:22 +1100
Steven D'Aprano wrote:
>
> But I think there is a good case for allowing the constructors int,
> float and complex to continue to accept numeric *strings* with non-ASCII
> digits. The code already exists, there's probably people out there who
> rely on it,
On Mon, 29 Nov 2010 22:46:33 -0500
Alexander Belopolsky wrote:
>
> In practical terms, UCD comes at a price. The unicodedata module size
> is over 700K on my machine. This is almost half the size of the
> python executable and by far the largest extension module. (only CJK
> encodings come clos
On Tue, Nov 30, 2010 at 7:59 AM, Steven D'Aprano wrote:
..
> But you should be able to write:
>
> text = input("Enter a number using your preferred digits: ")
> num = float(text)
>
> without caring whether the user enters 一.一 or 1.1 or something else.
>
I find it ironic that people who argue for
On Tue, Nov 30, 2010 at 8:38 AM, Antoine Pitrou wrote:
> On Mon, 29 Nov 2010 22:46:33 -0500
> Alexander Belopolsky wrote:
>>
>> In practical terms, UCD comes at a price. The unicodedata module size
>> is over 700K on my machine. This is almost half the size of the
>> python executable and by fa
Le mardi 30 novembre 2010 à 09:32 -0500, Alexander Belopolsky a écrit :
> On Tue, Nov 30, 2010 at 8:38 AM, Antoine Pitrou wrote:
> > On Mon, 29 Nov 2010 22:46:33 -0500
> > Alexander Belopolsky wrote:
> >>
> >> In practical terms, UCD comes at a price. The unicodedata module size
> >> is over 700
On Tue, Nov 30, 2010 at 09:41, Antoine Pitrou wrote:
> That said, I don't think the size is very important. For any non-trivial
> Python application, the size of unicodedata will be negligible compared
> to the size of Python objects.
That depends very much on the platform and the application. F
> But you should be able to write:
>
> text = input("Enter a number using your preferred digits: ")
> num = float(text)
>
> without caring whether the user enters 一.一 or 1.1 or something else.
yes. from logical point of view, this can happen.
But i really doubt that if really there are users who
On Mon, Nov 29, 2010 at 4:13 PM, "Martin v. Löwis" wrote:
>> - Should Python documentation refer to the specific version of Unicode
>> that it supports?
>
> You mean, mention it somewhere? Sure (although it would be nice if the
> documentation generator would automatically extract it from the sour
On Tue, Nov 30, 2010 at 9:56 AM, haiyang kang wrote:
>> But you should be able to write:
>>
>> text = input("Enter a number using your preferred digits: ")
>> num = float(text)
>>
>> without caring whether the user enters 一.一 or 1.1 or something else.
>
> yes. from logical point of view, this can
On Nov 30, 2010, at 01:09 PM, Michael Foord wrote:
>PEP 291 is very old and should probably be retired. I don't think anyone is
>maintaining standard libraries in py3k that are also compatible with Python
>2.anything. (At least not in a single codebase.)
I agree. I think we should change the sta
Alexander Belopolsky wrote:
> On Tue, Nov 30, 2010 at 9:56 AM, haiyang kang wrote:
> >> But you should be able to write:
> >>
> >> text = input("Enter a number using your preferred digits: ")
> >> num = float(text)
> >>
> >> without caring whether the user enters 一.一 or 1.1 or something else.
> >
On Mon, Nov 29, 2010 at 2:38 PM, Alexander Belopolsky
wrote:
..
>> Still, if it's not detrimental and it it's not difficult to support,
>> then why do you care?
>
> It is difficult to support. A fix for issue10557 would be much
> simpler if we did not support non-European digits. I now added a
>
On 30/11/2010 16:40, Alexander Belopolsky wrote:
[snip...]
And of course,
unicodedata.digit('\U0001D7CE')
0
but
int('\U0001D7CE')
..
UnicodeEncodeError: 'decimal' codec can't encode character '\ud835' ..
on a narrow Unicode build. (Note the character reported in the error message!)
If
On Tue, Nov 30, 2010 at 12:40 PM, Michael Foord
wrote:
..
>> If you think non-ASCII digits are not difficult to support, please
>> contribute to the following tracker issues:
>>
>
> Would moving this functionality to the locale module make the issues any
> easier to fix?
>
Sure, if we code it in
> Sure, if we code it in Python, supporting it will by much easier:
>
> def normalize_digits(s):
> digits = {m.group(1) for m in re.finditer('(\d)', s)}
> trtab = {ord(d): str(unicodedata.digit(d)) for d in digits}
> return s.translate(trtab)
>
> >>> normalize_digits('١٢٣٤.٥٦')
> '12
On Tue, Nov 30, 2010 at 1:29 PM, Antoine Pitrou wrote:
..
>> I am not sure this belongs to the locale module, however. It seems to
>> me, something like 'unicodealgo' for unicode algorithms would be more
>> appropriate.
>
> It could simply be in unicodedata if you split the implementation into a
Am 30.11.2010 09:15, schrieb Hagen Fürstenau:
>>> During PEP 3003 discussion, it was suggested to handle it on a case by
>>> case basis, but I don't see discussion of the upgrade to 6.0.0 in PEP
>>> 3003.
>>
>> It's covered by "As the standard library is not directly tied to the
>> language definit
> Would moving this functionality to the locale module make the issues any
> easier to fix?
You could delegate it to the C library, so: yes.
Regards,
Martin
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Le mardi 30 novembre 2010 à 20:16 +0100, "Martin v. Löwis" a écrit :
> > Would moving this functionality to the locale module make the issues any
> > easier to fix?
>
> You could delegate it to the C library, so: yes.
I hope you don't suggest delegating it to the C locale functions.
Do you?
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Am 30.11.2010 20:23, schrieb Antoine Pitrou:
> Le mardi 30 novembre 2010 à 20:16 +0100, "Martin v. Löwis" a écrit :
>>> Would moving this functionality to the locale module make the issues any
>>> easier to fix?
>>
>> You could delegate it to the C library, so: yes.
>
> I hope you don't suggest de
On Mon, Nov 29, 2010 at 12:21, Ron Adam wrote:
>
>
> On 11/29/2010 01:22 PM, Brett Cannon wrote:
>>
>> On Mon, Nov 29, 2010 at 03:53, Sylvain Thénault
>> wrote:
>>>
>>> On 25 novembre 11:22, Ron Adam wrote:
On 11/25/2010 08:30 AM, Emile Anclin wrote:
>
> hello,
>
> work
Le mardi 30 novembre 2010 à 20:40 +0100, "Martin v. Löwis" a écrit :
> Am 30.11.2010 20:23, schrieb Antoine Pitrou:
> > Le mardi 30 novembre 2010 à 20:16 +0100, "Martin v. Löwis" a écrit :
> >>> Would moving this functionality to the locale module make the issues any
> >>> easier to fix?
> >>
> >>
On Tue, Nov 30, 2010 at 00:34, Sylvain Thénault
wrote:
> On 29 novembre 14:21, Ron Adam wrote:
>> On 11/29/2010 01:22 PM, Brett Cannon wrote:
>> >Considering these semantics changed between Python 2 and 3 w/o a
>> >discernable benefit (I would consider it a negative as finding a
>> >module should
> Because we all know how locale is a pile of cr*p, both in specification
> and in implementations. Our unit tests for it are a clear proof of that.
I wouldn't use expletives, but rather claim that the locale module is
highly platform-dependent.
> Actually, I remember you saying that locale shoul
Le mardi 30 novembre 2010 à 20:55 +0100, "Martin v. Löwis" a écrit :
> Wrt. to local number parsing, I think that the locale module would be
> way better than the nonsense that Python currently does. In the locale
> module, somebody at least has thought about what specifically
> constitutes a numbe
On Tue, Nov 30, 2010 at 07:35, Barry Warsaw wrote:
> On Nov 30, 2010, at 01:09 PM, Michael Foord wrote:
>
>>PEP 291 is very old and should probably be retired. I don't think anyone is
>>maintaining standard libraries in py3k that are also compatible with Python
>>2.anything. (At least not in a sin
Oh, about ICU:
> > Actually, I remember you saying that locale should ideally be replaced
> > with a wrapper around the ICU library.
>
> By that, I stand - however, I have given up the hope that this will
> happen anytime soon.
Perhaps this could be made a GSOC topic.
Regards
Antoine.
_
haiyang kang writes:
> I think it is a little ugly to have code like this: num =
> float("一.一"), expected result is: num = 1.1
That's a straw man, though. The string need not be a literal in the
program; it can be input to the program.
num = float(input_from_the_external_world)
Does that
On Nov 30, 2010, at 12:11 PM, Brett Cannon wrote:
>I will channel Neal: "I decline and/or do not want to respond". =)
PEP 291 updated.
-Barry
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On 11/30/2010 3:23 AM, Stephen J. Turnbull wrote:
I see no reason not to make a similar promise for numeric literals. I
see no good reason to allow compatibility full-width Japanese "ASCII"
numerals or Arabic cursive numerals in "for i in range(...)" for
example.
I do not think that anyone, a
On 11/30/2010 01:41 PM, Brett Cannon wrote:
On Mon, Nov 29, 2010 at 12:21, Ron Adam wrote:
On 11/29/2010 01:22 PM, Brett Cannon wrote:
On Mon, Nov 29, 2010 at 03:53, Sylvain Thénault
wrote:
On 25 novembre 11:22, Ron Adam wrote:
On 11/25/2010 08:30 AM, Emile Anclin wrote:
hello,
Am 30.11.2010 21:24, schrieb Ben Finney:
> haiyang kang writes:
>
>> I think it is a little ugly to have code like this: num =
>> float("一.一"), expected result is: num = 1.1
>
> That's a straw man, though. The string need not be a literal in the
> program; it can be input to the program.
>
>
Am 30.11.2010 23:43, schrieb Terry Reedy:
> On 11/30/2010 3:23 AM, Stephen J. Turnbull wrote:
>
>> I see no reason not to make a similar promise for numeric literals. I
>> see no good reason to allow compatibility full-width Japanese "ASCII"
>> numerals or Arabic cursive numerals in "for i in ran
On 11/30/2010 10:05 AM, Alexander Belopolsky wrote:
My general answers to the questions you have raised are as follows:
1. Each new feature release should use the latest version of the UCD as
of the first beta release (or perhaps a week or so before). New chars
are new features and the beta pe
"Martin v. Löwis" writes:
> Am 30.11.2010 21:24, schrieb Ben Finney:
> > The string need not be a literal in the program; it can be input to
> > the program.
> >
> > num = float(input_from_the_external_world)
> >
> > Does that change your assessment of whether non-ASCII digits are
> > used?
The documentation for the collections Abstract Base Classes (ABCs) [1]
contains a table listing all of the collections ABCs, their parent classes,
their abstract methods, and the methods they provide. This table makes it
very easy to figure out which methods I must override when I derive from one
On Wed, Dec 1, 2010 at 8:48 AM, Ron Adam wrote:
> * It almost seems like the concept of a sub-module (in a package) is flawed.
> I'm not sure I can explain what causes me to feel that way at the moment
> though.
It isn't flawed, it is just a *lot* more complicated than most people
realise (cf. P
PyBuffer_SizeFromFormat is documented and defined in abstract.h.
But I can't find an implementation of the function.
Do I overlook anything?
--
INADA Naoki
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On Wed, Dec 1, 2010 at 12:30 PM, INADA Naoki wrote:
> PyBuffer_SizeFromFormat is documented and defined in abstract.h.
> But I can't find an implementation of the function.
> Do I overlook anything?
PEP 3118 describes what it is *meant* to do. Looks like it might be
yet another thing that was mis
On 11/30/2010 07:19 PM, Nick Coghlan wrote:
On Wed, Dec 1, 2010 at 8:48 AM, Ron Adam wrote:
* It almost seems like the concept of a sub-module (in a package) is flawed.
I'm not sure I can explain what causes me to feel that way at the moment
though.
It isn't flawed, it is just a *lot* mor
On Wed, Dec 1, 2010 at 3:59 PM, Ron Adam wrote:
> Yes, it's realising that it is a *lot* more *complicated*, that gets me.
> Flawed isn't the right word, it's rather a feeling things could have been
> simpler if perhaps some things were done differently.
*That* feeling I can understand. The impor
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