[ python-Bugs-1158490 ] locale fails if LANGUAGE has multiple locales

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Thu Mar 10 19:48:05 CET 2005

Bugs item #1158490, was opened at 2005-03-07 19:11
Message generated for change (Comment added) made by sorlov
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Category: Python Library
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: mixedpuppy (mixedpuppy)
Assigned to: M.-A. Lemburg (lemburg)
Summary: locale fails if LANGUAGE has multiple locales

Initial Comment:
The locale module does not correctly handle the
LANGUAGE environment variable if it contains multiple
settings.  Example:


Note, en_DK does not exist in locale_alias

In normalize, the colons are replaced with dots, which
is incorrect.  getdefaultlocal should seperate these
first, then try each one until it finds one that works,
or fails on all.  

GLIBC documentation:

"While for the LC_xxx variables the value should
consist of exactly one specification of a locale the
LANGUAGE variable's value can consist of a colon
separated list of locale names."

Testing this is simple, just set your LANGUAGE
environment var to the above example, and use

> export LANGUAGE="en_DK:en_GB:en_US:en"
> python
ActivePython 2.4 Build 244 (ActiveState Corp.) based on
Python 2.4 (#1, Feb  9 2005, 19:33:15)
[GCC 3.3.1 (SuSE Linux)] on linux2
Type "help", "copyright", "credits" or "license" for
more information.
>>> import locale
>>> locale.getdefaultlocale()
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/opt/ActivePython-2.4/lib/python2.4/locale.py",
line 344, in getdefaultlocale
    return _parse_localename(localename)
  File "/opt/ActivePython-2.4/lib/python2.4/locale.py",
line 278, in _parse_localename
    raise ValueError, 'unknown locale: %s' % localename
ValueError: unknown locale: en_DK:en_GB:en_US:en


Comment By: Serge Orlov (sorlov)
Date: 2005-03-10 18:48

Logged In: YES 

The docs for getdefaultlocale state that it follows the GNU
gettext search path. OTOH gettext can return result from any
of catalogs en_DK:en_GB:en_US:en, it depends on the content
of the message. So maybe getdefaultlocale should just pick
up the first value from LANGUAGE ?


Comment By: M.-A. Lemburg (lemburg)
Date: 2005-03-10 15:43

Logged In: YES 

The URL you gave does state that LANGUAGE can take mulitple
entries separated by colons. However, I fail to see how to
choose the locale from the list of possibilities. Any ideas ?


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