Formatting question : printing numbers with thousands separators ?

[Fred Pacquier]

"John W. Baxter" <jwbaxter at spamcop.com> said :

>> how do I print 246814345 as 246,814,345 (or 246 814 345) ?
> 
> Or 246.814.345  ;-).  Any others?
> I think there is room for a module which "does what Microsoft Excel
> does" based on format strings, if not a bit more.
> Is there such a module?

Turns out there is -- "locale", strangely enough :)

Will need to test how portable it is, but works fine on Windows right now.

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