On 1/28/2018 6:51 AM, Nick Coghlan wrote:
On 28 January 2018 at 19:30, Stephan Houben <stephan...@gmail.com> wrote:
Hi David,
Perhaps the "n" locale-dependent number formatting specifier
should accept a , to have locale-appropriate formatting of thousand
separators?
f"{x:,n}"
would Do The Right Thing(TM) depending on the locale.
Checking https://www.python.org/dev/peps/pep-0378/, we did suggest
using the locale module for cases where the engineering style
groups-of-three structure wasn't appropriate, with the parallel being
drawn to the fact that you also need to use locale dependent
formatting to get a decimal separator other than ".".
If I recall correctly, we discussed this at the time, and the problem
with locale is that it's not thread safe. I agree that if it were, it
would be nice to be able to use it, either with 'n', or in some other
mode just for grouping.
The underlying C setlocale()/localeconv() just isn't very friendly to
this use case.
Eric.
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