locale in user/extensions.py failed

[Chris Richmond]

I'm sure this is simply, but I'm setting up a new RPi for a VantageVue and tweaking extensions.py to check for good time.

When I ran this stand-alone, locale.setlocale(locale.LC_ALL, '') failed.

pi2c_/home/weewx/bin/user> python

Python 2.7.13 (default, Sep 26 2018, 18:42:22) 

[GCC 6.3.0 20170516] on linux2

>>> import locale

>>> locale.setlocale(locale.LC_ALL, '')

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/usr/lib/python2.7/locale.py", line 581, in setlocale

    return _setlocale(category, locale)

locale.Error: unsupported locale setting

>>> locale.setlocale(locale.LC_ALL, 'C')

'C'

>>> 

And from searching:

pi2c_/home/weewx/bin/user> locale -a

locale: Cannot set LC_CTYPE to default locale: No such file or directory

locale: Cannot set LC_MESSAGES to default locale: No such file or directory

locale: Cannot set LC_COLLATE to default locale: No such file or directory

C

C.UTF-8

POSIX

en_US.utf8

So something is missing from the RPi itself that causes a weewxd failure.

Setting the value to 'C' does work, but an empty string does not.  I had other

wierd redraw problems with vim of all things and ended up with these in my .cshrc:

setenv LANG ASCII

setenv LC_ALL ASCII

setenv LANGUAGE ASCII

Chris

[Thomas Keffer]

I would guess that your RPi does not have a  default locale set. To see what locales it has been set to, use a simple "locale" command. Here's what I get:

pi@RPi-bug ~ $ locale
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

The easiest way to set a default locale is to use dpkg-reconfigure:

$ sudo dpkg-reconfigure locales

-tk

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[Chris Richmond]

Thanks.  Not sure dpkg-reconfigure locales helped exactly, but I think the problem

was trying to set things in .cshrc to a locale that didn't exist (ASCII).  I commented

all those out, and logged in again and get this:

pi2c:~> locale

LANG=C.UTF-8

LANGUAGE=en_US.UTF-8

LC_CTYPE="en_US.UTF-8"

LC_NUMERIC="en_US.UTF-8"

LC_TIME="en_US.UTF-8"

LC_COLLATE="en_US.UTF-8"

LC_MONETARY="en_US.UTF-8"

LC_MESSAGES="en_US.UTF-8"

LC_PAPER="en_US.UTF-8"

LC_NAME="en_US.UTF-8"

LC_ADDRESS="en_US.UTF-8"

LC_TELEPHONE="en_US.UTF-8"

LC_MEASUREMENT="en_US.UTF-8"

LC_IDENTIFICATION="en_US.UTF-8"

LC_ALL=en_US.UTF-8

weewxd -h works, but vim is broken again (doesn't clear lines when paging).

What works is to keep this in .cshrc:

setenv LANG C

unsetenv LC_ALL

unsetenv LANGUAGE

Then locale looks like this:

pi2c:~> locale

LANG=C

LANGUAGE=

LC_CTYPE="C"

LC_NUMERIC="C"

LC_TIME="C"

LC_COLLATE="C"

LC_MONETARY="C"

LC_MESSAGES="C"

LC_PAPER="C"

LC_NAME="C"

LC_ADDRESS="C"

LC_TELEPHONE="C"

LC_MEASUREMENT="C"

LC_IDENTIFICATION="C"

LC_ALL=

So I suppose this is really a vim problem more than anything else, but

back in business on both fronts with no mods in extensions.py for this.

Thx, Chris