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Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?]

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Date Sun, 19 Jul 2015 07:56:01 -0500
From Tim Chase <python.list@tim.thechases.com>
To python-list@python.org
Subject Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?]
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On 2015-07-19 14:45, Steven D'Aprano wrote:
>> ie we can now do
>>>>> १ + २  
>> 3  
> 
> That is actually quite awesome, and I would support a new feature
> that set the numeric characters to a particular script, e.g. Latin,
> Arabic, Devanagari, whatever, and printed them in that same script.
> It seems unfortunate that १ + २ prints as 3 rather than ३.
> 
> Python already, and has for many years, supported non-ASCII digits
> in string conversions. This is in Python 2.4:
> 
> py> int(u'१२')  
> 12
> py> float(u'.१२')  
> 0.12
> 
> so the feature goes back a long time.

Agreed that it's pretty awesome.  It seems to have some holes though:

Python 3.4.2 (default, Oct  8 2014, 10:45:20) 
[GCC 4.9.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> print('\N{VULGAR FRACTION ONE EIGHTH}')
⅛
>>> print(float('\N{VULGAR FRACTION ONE EIGHTH}'))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: could not convert string to float: '⅛'
>>> print('\N{ROMAN NUMERAL NINE}')
Ⅸ
>>> int('\N{ROMAN NUMERAL NINE}')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: invalid literal for int() with base 10: 'Ⅸ'
>>> print('\N{ROMAN NUMERAL TEN THOUSAND}')
ↂ
>>> int('\N{ROMAN NUMERAL TEN THOUSAND}')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: invalid literal for int() with base 10: 'ↂ'

-tkc

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Re: Should non-security 2.7 bugs be fixed? Devin Jeanpierre <jeanpierreda@gmail.com> - 2015-07-18 19:33 -0700
  Re: Should non-security 2.7 bugs be fixed? Rick Johnson <rantingrickjohnson@gmail.com> - 2015-07-18 19:49 -0700
  Re: Should non-security 2.7 bugs be fixed? Rustom Mody <rustompmody@gmail.com> - 2015-07-18 20:52 -0700
    Re: Should non-security 2.7 bugs be fixed? Rick Johnson <rantingrickjohnson@gmail.com> - 2015-07-18 21:18 -0700
    Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Steven D'Aprano <steve@pearwood.info> - 2015-07-19 14:45 +1000
      Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Chris Angelico <rosuav@gmail.com> - 2015-07-19 15:06 +1000
        Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-07-19 10:16 +0300
          Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-19 00:32 -0700
            Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-07-19 10:44 +0300
            Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Terry Reedy <tjreedy@udel.edu> - 2015-07-19 19:13 -0400
              Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-19 19:02 -0700
      Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Anuradha Laxminarayan <lanuradha@gmail.com> - 2015-07-18 23:25 -0700
      Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Terry Reedy <tjreedy@udel.edu> - 2015-07-19 04:26 -0400
      Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Tim Chase <python.list@tim.thechases.com> - 2015-07-19 07:56 -0500
      Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Chris Angelico <rosuav@gmail.com> - 2015-07-20 04:07 +1000
      Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Tim Chase <python.list@tim.thechases.com> - 2015-07-19 14:55 -0500
      Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Chris Angelico <rosuav@gmail.com> - 2015-07-20 07:16 +1000
        Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] wxjmfauth@gmail.com - 2015-07-20 00:43 -0700
      Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] MRAB <python@mrabarnett.plus.com> - 2015-07-19 23:13 +0100
      Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-20 20:30 -0700
        Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Chris Angelico <rosuav@gmail.com> - 2015-07-21 13:43 +1000
          Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-20 23:11 -0700
        Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Laura Creighton <lac@openend.se> - 2015-07-21 10:10 +0200
          Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-07-21 12:10 +0300
            Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Chris Angelico <rosuav@gmail.com> - 2015-07-21 19:18 +1000
              Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-07-21 13:13 +0300
            Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-21 11:34 +0100
            Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-07-21 20:39 +1000
              Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-07-21 13:54 +0300
                Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-08-09 00:27 +0300
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-08-09 09:29 -0700
              Re:  Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-22 06:34 -0700
                OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Steven D'Aprano <steve@pearwood.info> - 2015-07-23 02:58 +1000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Laura Creighton <lac@openend.se> - 2015-07-22 19:17 +0200
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-22 10:49 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Laura Creighton <lac@openend.se> - 2015-07-22 20:14 +0200
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-22 21:59 +0100
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Steven D'Aprano <steve@pearwood.info> - 2015-07-23 03:21 +1000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-07-22 21:44 -0400
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Chris Angelico <rosuav@gmail.com> - 2015-07-23 12:00 +1000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Paul Rubin <no.email@nospam.invalid> - 2015-07-22 10:48 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-22 10:51 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-07-23 15:14 +1000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-22 11:09 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-07-23 15:41 +1000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-07-23 23:59 +0300
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Chris Angelico <rosuav@gmail.com> - 2015-07-24 07:03 +1000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-07-24 00:29 +0300
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-23 22:50 +0100
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Laura Creighton <lac@openend.se> - 2015-07-23 23:52 +0200
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-07-24 00:59 +0300
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Chris Angelico <rosuav@gmail.com> - 2015-07-24 08:02 +1000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Chris Angelico <rosuav@gmail.com> - 2015-07-24 08:00 +1000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] MRAB <python@mrabarnett.plus.com> - 2015-07-23 23:01 +0100
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Laura Creighton <lac@openend.se> - 2015-07-24 00:19 +0200
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-23 23:56 +0100
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Grant Edwards <invalid@invalid.invalid> - 2015-07-24 00:07 +0000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rick Johnson <rantingrickjohnson@gmail.com> - 2015-07-23 18:40 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Paul Rubin <no.email@nospam.invalid> - 2015-07-23 19:03 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rick Johnson <rantingrickjohnson@gmail.com> - 2015-07-23 20:16 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Grant Edwards <invalid@invalid.invalid> - 2015-07-24 14:13 +0000
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Paul Rubin <no.email@nospam.invalid> - 2015-07-24 08:45 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-24 16:58 +0100
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-23 22:15 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security   2.7 bugs be fixed?] Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-07-23 18:57 +1200
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-23 02:12 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Rustom Mody <rustompmody@gmail.com> - 2015-07-23 05:52 -0700
                Re: OT Re: Math-embarrassment results in CS [was: Should non-security 2.7 bugs be fixed?] Marko Rauhamaa <marko@pacujo.net> - 2015-07-23 11:24 +0300
        Re: Devanagari int literals [was Re: Should non-security 2.7 bugs be fixed?] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-07-21 18:57 +1000
    Re: Should non-security 2.7 bugs be fixed? Terry Reedy <tjreedy@udel.edu> - 2015-07-19 02:44 -0400
    Re: Should non-security 2.7 bugs be fixed? Terry Reedy <tjreedy@udel.edu> - 2015-07-19 05:11 -0400
      Re: Should non-security 2.7 bugs be fixed? Rustom Mody <rustompmody@gmail.com> - 2015-07-19 07:30 -0700
    Re: Should non-security 2.7 bugs be fixed? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-19 15:00 +0100
  Re: Should non-security 2.7 bugs be fixed? Steven D'Aprano <steve@pearwood.info> - 2015-07-19 14:45 +1000
    Re: Should non-security 2.7 bugs be fixed? Devin Jeanpierre <jeanpierreda@gmail.com> - 2015-07-19 18:20 -0700
      Re: Should non-security 2.7 bugs be fixed? Steven D'Aprano <steve@pearwood.info> - 2015-07-20 13:05 +1000
        Re: Should non-security 2.7 bugs be fixed? Devin Jeanpierre <jeanpierreda@gmail.com> - 2015-07-19 20:41 -0700
    Re: Should non-security 2.7 bugs be fixed? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-20 02:46 +0100
      Re: Should non-security 2.7 bugs be fixed? Rustom Mody <rustompmody@gmail.com> - 2015-07-19 19:16 -0700
        Re: Should non-security 2.7 bugs be fixed? Chris Angelico <rosuav@gmail.com> - 2015-07-20 12:59 +1000
        Re: Should non-security 2.7 bugs be fixed? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-20 11:59 +0100
        Re: Should non-security 2.7 bugs be fixed? Rick Johnson <rantingrickjohnson@gmail.com> - 2015-07-20 20:04 -0700
          Re: Should non-security 2.7 bugs be fixed? Rustom Mody <rustompmody@gmail.com> - 2015-07-20 20:15 -0700
            Re: Should non-security 2.7 bugs be fixed? Chris Angelico <rosuav@gmail.com> - 2015-07-21 13:33 +1000
            Re: Should non-security 2.7 bugs be fixed? Terry Reedy <tjreedy@udel.edu> - 2015-07-21 00:45 -0400
          Re: Should non-security 2.7 bugs be fixed? breamoreboy@gmail.com - 2015-07-21 14:22 -0700
            Re: Should non-security 2.7 bugs be fixed? Rick Johnson <rantingrickjohnson@gmail.com> - 2015-07-21 19:07 -0700
              Re: Should non-security 2.7 bugs be fixed? Terry Reedy <tjreedy@udel.edu> - 2015-07-22 02:51 -0400
                Re: Should non-security 2.7 bugs be fixed? Rick Johnson <rantingrickjohnson@gmail.com> - 2015-07-22 16:37 -0700
    Re: Should non-security 2.7 bugs be fixed? Terry Reedy <tjreedy@udel.edu> - 2015-07-20 02:25 -0400
    Re: Should non-security 2.7 bugs be fixed? dieter <dieter@handshake.de> - 2015-07-20 08:58 +0200
    Re: Should non-security 2.7 bugs be fixed? Devin Jeanpierre <jeanpierreda@gmail.com> - 2015-07-20 00:13 -0700

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