On 5/21/2013 11:38 PM, Carlos Nepomuceno wrote:
From:steve+comp.lang.pyt...@pearwood.info
>Subject: Re: PEP 378: Format Specifier for Thousands Separator
>Date: Wed, 22 May 2013 03:08:54 +0000
>To:python-list@python.org
[...]
>>So, the only alternative to have "'%,d' % x" rendering the thousands
>>separator output would a C source code modification?
>
>That's one alternative. But the language you would be then running will
>no longer be Python.
>
>Another alternative would be to write a pre-processor that parses your
>Python source code, extracts any reference to the above, and replaces it
>with a call to the appropriate format call. But not only is that a lot of
>work for very little gain, but it's also more or less impossible to do in
>full generality. And again, what you are running will be something
>different than Python, it will be Python plus a pre-processor.
>
>
>Don't fight the language. You will lose.
Not fighting the language. In fact it's not even a language issue.
All I need is a standard library[1] improvement: "%,d"! That's all!
You have to keep in mind that 2.7 is not getting any new features, no
matter how small they seem. If you create a patch that implements the
comma flag in %-formatting, it *might* go into 3.x, but it will not go
into 2.7.
--Ned.
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