[New-bugs-announce] [issue38805] locale.getlocale() returns a non RFC1766 language code

[Mark Grandi]

New submission from Mark Grandi <markgrandi at gmail.com>:

It seems that something with windows 10, python 3.8, or both changed where `locale.getlocale()` is now returning strange results

According to the documentation: https://docs.python.org/3/library/locale.html?highlight=locale%20getlocale#locale.getlocale  , the language code should be in RFC1766 format:

Language-Tag = Primary-tag *( "-" Subtag )
Primary-tag = 1*8ALPHA
Subtag = 1*8ALPHA
Whitespace is not allowed within the tag.

but in python 3.8, I am getting a language code that doesn't meet RFC1766 specs:


PS C:\Users\auror> py -3
Python 3.8.0 (tags/v3.8.0:fa919fd, Oct 14 2019, 19:37:50) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform; platform.platform()
'Windows-10-10.0.18362-SP0'
>>> import locale; locale.getlocale(); locale.getdefaultlocale()
('English_United States', '1252')
('en_US', 'cp1252')
>>>


on the same machine, with python 3.7.4:

PS C:\Python37> .\python.exe
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import platform; platform.platform()
'Windows-10-10.0.18362-SP0'
>>> import locale; locale.getlocale(); locale.getdefaultlocale()
(None, None)
('en_US', 'cp1252')
>>>


also interesting that the encoding is different in py3.8 between `locale.getlocale()` and `locale.getdefaultlocale()`, being '1252' and 'cp1252', this might not be related though as it was present in python 3.7.4

these issues might be related, but stuff found hwen searching for 'locale' bugs:

https://bugs.python.org/issue26024
https://bugs.python.org/issue37945

----------
components: Library (Lib)
messages: 356637
nosy: markgrandi
priority: normal
severity: normal
status: open
title: locale.getlocale() returns a non RFC1766 language code
type: behavior
versions: Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38805>
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