Insert comma in number?

[Paul Volkov]

2013/3/7 Peter Otten <__peter__ at web.de>:
> Last not least there's the option to employ locale-aware formatting:
>
>>>> import locale
>>>> locale.setlocale(locale.LC_ALL, "en_US.UTF-8")
> 'en_US.UTF-8'
>>>> locale.format("%d", 12345, grouping=True)
> '12,345'
>
> In German usage of "." and "," is reversed, so:
>
>>>> locale.setlocale(locale.LC_ALL, "de_DE.UTF-8")
> 'de_DE.UTF-8'
>>>> locale.format("%d", 12345, grouping=True)
> '12.345'

Does this locale-aware example only work on UNIX?