[Python-Dev] Status regarding Old vs. Advanced String Formating

Mark Lawrence breamoreboy at yahoo.co.uk
Sat Feb 25 21:49:59 CET 2012


On 25/02/2012 20:16, Mark Lawrence wrote:
> On 25/02/2012 13:13, Mark Lawrence wrote:
>> On 25/02/2012 05:55, Nick Coghlan wrote:
>>> On Sat, Feb 25, 2012 at 10:23 AM, Mark
>>> Lawrence<breamoreboy at yahoo.co.uk> wrote:
>>>
>>>> <quote>
>>>> Quoting the docs http://docs.python.org/py3k/library/stdtypes.html
>>>>
>>>> 4.6.2. Old String Formatting Operations
>>>>
>>>> Note
>>>>
>>>> The formatting operations described here are obsolete and may go
>>>> away in
>>>> future versions of Python. Use the new String Formatting in new code.
>>>>
>>>> </quote>
>>>>
>>>> I think this is daft because all of the code has to be supported for
>>>> the ten
>>>> years that MVL has suggested.
>>>
>>> Indeed, that note was written before we decided that getting rid of
>>> "%" formatting altogether would be a bad idea.
>>>
>>> It would be better to update it to say something like:
>>>
>>> "The formatting operations described here are modelled on C's printf()
>>> syntax. They only support formatting of certain builtin types, and the
>>> use of a binary operator means that care may be needed in order to
>>> format tuples and dictionaries correctly. As the new string formatting
>>> syntax is more powerful, flexible, extensible and handles tuples and
>>> dictionaries naturally, it is recommended for new code. However, there
>>> are no current plans to deprecate printf-style formatting."
>>>
>>> Cheers,
>>> Nick.
>>>
>>
>> That's fine by me, it'll save me changing my own code. I'll put this on
>> the issue tracker if you want, but after the pressing needs of the bar
>> and 6 Nations rugby :)
>>
>
> I would raise this on the issue tracker but it won't let me login. Guess
> I'm not wanted. :(
>

But there's more than one way of skinning a cat.
http://bugs.python.org/issue14123

-- 
Cheers.

Mark Lawrence.



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