locale.setlocale doesn't recognize the the format that 
locale.py uses to set the locale, ie. no_NO and 
friends.

The only way I've succeeded in setting the locale on 
Python 2.1 is to use the format described in the 
Visual C++ C-runtime library docs for setlocale where 
a more verbose format is used to set the locale.

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Mark, know anything about this?  I don't.

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Can you provide a detailed test case? AFAIK, no_NO is indeed
no supported locale name on Windows, and I don't think
Python aanywhere uses it without the application explicitly
saying so.

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Sorry, I forgot to mention the testcase I am using. The 
test case that fails is the locale module itself, when 
running it as a standalone application that is.

To be more specific:
  File "d:\devtools\python21\lib\locale.py", line 384, in 
resetlocale
    _setlocale(category, _build_localename(getdefaultlocale
()))
locale.Error: locale setting not supported

And to clarify what input getdefaultlocale returns on my 
machine:

>>> locale.getdefaultlocale()
('no_NO', 'cp1252')

and:
>>> locale._build_localename(locale.getdefaultlocale())
'no_NO.cp1252'

By the way, is this bug fixed in python 2.2?

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Still reproducible with Python 2.4:

Python 2.4b2 (#19, Nov  8 2004, 11:15:07)
[GCC 3.3.5 (Debian 1:3.3.5-2)] on linux2
Type "help", "copyright", "credits" or "license" for more
information.
>>> import locale
>>> locale.getdefaultlocale()
['en_US', 'utf']
>>> locale.resetlocale()
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/home/johannes/python/Lib/locale.py", line 389, in
resetlocale
    _setlocale(category, _build_localename(getdefaultlocale()))
locale.Error: unsupported locale setting

Note that if I run python with 'LANG=nl_NL python', the
error does not occur.

http://python.org/sf/813449 seems to be the same bug, BTW.

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As this is not Windows specific, setting Category to Library.

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I'm seeing this error on Fedora Core 4:

Python 2.4.1 (#1, May 16 2005, 15:19:29) 
[GCC 4.0.0 20050512 (Red Hat 4.0.0-5)] on linux2
Type "help", "copyright", "credits" or "license" for more
information.
>>> import locale; locale.getdefaultlocale()
('en_US', 'utf')
>>> locale.resetlocale()
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/usr/lib/python2.4/locale.py", line 389, in resetlocale
    _setlocale(category, _build_localename(getdefaultlocale()))
locale.Error: unsupported locale setting

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The same applies to other locales.

From #813449 (a duplicate of this):
"""
This is a known limitation: getdefaultlocale should not be
used in new code.

If the intention is to compute the locale's encoding,
locale.getpreferredencoding should be used instead.
"""

Still a problems on py3k.  Set stage to needs patch as it's so easy to reproduce.