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reassign 840610 python3 3.5.1-4
retitle 840610 python inconsistently handles the LANGUAGE env var
severity 840610 serious
affects 840610 apt-listchanges
thanks
[Severity serious, because I believe internationalization is one of
priorities of Debian, and this bug makes localized versions of
python-based applications unreliable]
Ph. Marek writes:
> Normally, I'm using de_AT.UTF-8. For reporting a bug I set "export
> LC_ALL=C", but on the next apt-get invocations I get error
> messages:
>
> $ apt-get install -t experimental rakudo ... Fetched 4146 kB in 2s
> (1434 kB/s) apt-listchanges: Lese Changelogs... [...] File
> "/usr/share/apt-listchanges/ALCLog.py", line 36, in info
> print(_("apt-listchanges: %(msg)s") % {'msg': msg},
> file=sys.stdout); UnicodeEncodeError: 'ascii' codec can't encode
> character '\xfc' in position 68: ordinal not in range(128)
> (Reading database ... 556786 files and directories currently
> installed.)
>
> (never mind the single German line in there ;)
Actually this is the most important line of your bug report ;) In
LC_ALL=C, it is "Reading changelogs..." that should be printed instead
of its translation. Please note that dpkg prints "Reading database
...", not "Lese Datenbank ...".
I can easily reproduce this weird behaviour by setting both
LANGUAGE=de_DE.UTF-8 and LC_ALL=C, and this is the only way I can do thi
s.
According to GNU gettext documentation[1]: "The variable LANGUAGE is
ignored if the locale is set to ‘C’." But apparently this does not
work this way in python - it looks like print() ignores the variable,
but gettext.gettext() does not, what is pretty inconsistent, and leads
to errors:
[16]/home/robert> LANGUAGE=de_AT.UTF8 LC_ALL=C python3
Python 3.5.2+ (default, Sep 22 2016, 12:18:14)
[GCC 6.2.0 20160927] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import locale
>>> import gettext
>>> locale.setlocale(locale.LC_ALL, '')
'C'
>>> gettext.textdomain("apt-listchanges")
'apt-listchanges'
>>> print(gettext.gettext('apt-listchanges: changelogs for %s'))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character '\xfc' in
position 29: ordinal not in range(128)
Regards,
robert
[1]
https://www.gnu.org/software/gettext/manual/html_node/The-LANGUAGE-varia
ble.html
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