[Python-3000] PEP 3138- String representation in Python 3000

[Guido van Rossum]

> Le jeudi 22 mai 2008 à 10:55 -0700, Guido van Rossum a écrit :
>> Is this thread reaching a conclusion yet? I am hoping I can soon
>> accept some variant of the following:
>>
>> 1. repr() returns a Unicode string containing only printable Unicode
>> characters, using \x\u\U escapes for characters that are not
>> considered printable according to some version of the Unicode standard
>> augmented with some Python practicality, but unaffected by platform or
>> locale. This can be implemented efficiently, without having to load
>> the whole Unicode database, at least for strings containing only a
>> large subset of the Unicode character set (e.g. all of UCS2, and
>> possibly whole ranges of UCS4).
>>
>> 2. If you don't want any non-ASCII printed to a file, set the file's
>> encoding to ASCII and the error handler to backslashescape.

On Thu, May 22, 2008 at 12:59 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:
> Since some people still seem wary that repr() might return non-ascii
> results, perhaps we could also:
>
> 3. Add a builtin function named ascii() and a formatting code "%a" that
> both call repr() internally and then convert all non-ascii characters to
> \uXXXX escapes.

I'd call that a stretch goal, but it seems an easy one.

> 2to3 might even replace all occurrences of repr() by ascii(), to err on
> the safe side.

I'd be against that.

Could someone (Atsuo?) write up a new version for the PEP, adding the
conclusions reached in this thread and recapping some of the
discussion? I think this can get in before the first beta release, and
that seems doable.

-- 
--Guido van Rossum (home page: http://www.python.org/~guido/)