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From: Peter Otten <__peter__@web.de>
Subject: Re: Formate a number with commas
Date: Thu, 09 Feb 2012 22:16:03 +0100
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:20112

Chris Rebert wrote:

> On Thu, Feb 9, 2012 at 12:39 PM, Peter Otten <__peter__@web.de> wrote:

>>>>> import locale
>>>>> locale.setlocale(locale.LC_ALL, "")
>> 'de_DE.UTF-8'
>>>>> "{:n}".format(1234) # locale-aware
>> '1.234'
>>>>> "{:,d}".format(1234) # always a comma
>> '1,234'
> 
> The latter requires Python 3.1+ and is courtesy PEP 378
> (http://www.python.org/dev/peps/pep-0378/ ).

I actually ran the above session in 2.7, so that should do, too.

http://docs.python.org/whatsnew/2.7.html#pep-378-format-specifier-for-
thousands-separator