[Bug] GRASS won't start for unknown locale

[madi]

Hello!

GRASS latest version, give the following error message at startup and won't start:

`Failed to enforce user specified language 'bn' with error: 'unsupported locale setting'
A LANGUAGE environmental variable has been set.
Part of messages will be displayed in the requested language.
Starting GRASS GIS...
WARNING: Ignoring unsupported debug level (must be >=0 and <=5): unknown locale: bn

          __________  ___   __________    _______________
         / ____/ __ \/   | / ___/ ___/   / ____/  _/ ___/
        / / __/ /_/ / /| | \__ \\_  \   / / __ / / \__ \
       / /_/ / _, _/ ___ |___/ /__/ /  / /_/ // / ___/ /
       \____/_/ |_/_/  |_/____/____/   \____/___//____/

Welcome to GRASS GIS 8.4.0dev (4d2dac4789)
GRASS GIS homepage:                      https://grass.osgeo.org
This version running through:            Bash Shell (/bin/bash)
Help is available with the command:      g.manual -i
See the licence terms with:              g.version -c
See citation options with:               g.version -x
If required, restart the GUI with:       g.gui wxpython
When ready to quit enter:                exit

Launching <wxpython> GUI in the background, please wait...
GRASS Italia/PERMANENT:~ > Traceback (most recent call last):
  File "/usr/local/grass84/etc/python/grass/script/utils.py", line 163, in _get_encoding
    encoding = locale.getencoding()
AttributeError: module 'locale' has no attribute 'getencoding'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/bin/grass", line 2768, in <module>
    main()
  File "/usr/local/bin/grass", line 2735, in main
    gui_process = start_gui(grass_gui)
  File "/usr/local/bin/grass", line 1794, in start_gui
    if is_debug() or "WX_DEBUG" in gs.gisenv():
  File "/usr/local/grass84/etc/python/grass/script/core.py", line 1151, in gisenv
    s = read_command("g.gisenv", flags="n", env=env)
  File "/usr/local/grass84/etc/python/grass/script/core.py", line 525, in read_command
    stdout = _make_unicode(stdout, encoding)
  File "/usr/local/grass84/etc/python/grass/script/core.py", line 117, in _make_unicode
    return decode(val)
  File "/usr/local/grass84/etc/python/grass/script/utils.py", line 193, in decode
    enc = _get_encoding()
  File "/usr/local/grass84/etc/python/grass/script/utils.py", line 165, in _get_encoding
    encoding = locale.getdefaultlocale()[1]
  File "/usr/lib/python3.10/locale.py", line 584, in getdefaultlocale
    return _parse_localename(localename)
  File "/usr/lib/python3.10/locale.py", line 511, in _parse_localename
    raise ValueError('unknown locale: %s' % localename)
ValueError: unknown locale: bn

My locales look OK:

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

System description (please complete the following information):

• Operating System:
  uname -a Linux ThinkPad-P53 5.15.0-94-generic #104-Ubuntu SMP Tue Jan 9 15:25:40 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
• GRASS GIS version
  GRASS GIS 8.4.0dev (4d2dac4)

Thanks

[marisn]

Unless you are testing GRASS in Bengali language, your .grass8/wx.json file most likely is toast. Check its lc_all parameter.
There is nothing wrong with your locale, as the key is user specified language – a language override has been set in the GUI settings.

[nilason]

Not sure what could be the problem, you can try debug with (both outside and in GRASS session):

printenv
python -c "import locale; print(locale.getdefaultlocale())"

(I also see you have set DEBUG level out of the 0-5 range WARNING: Ignoring unsupported debug level (must be >=0 and <=5): but that shouldn't have anything to do with the problem).

[marisn]

Not sure what could be the problem, you can try debug with (both outside and in GRASS session):

There is also an legit error in the code – locale.getdefaultlocale can rise a ValueError and thus failback to UTF-8 will not work. Thus this is a code shortcoming exposed by a (most likely) erroneous settings file.
Test: LC_ALL=wrong python3 -c "import locale; print(locale.getdefaultlocale())"

[tmszi]

Could @madi post command locale -a output from the emulator terminal, please?

[madi]

Could @madi post command locale -a output from the emulator terminal, please?

locale -a
C
C.utf8
en_AG
en_AG.utf8
en_AU.utf8
en_BW.utf8
en_CA.utf8
en_DK.utf8
en_GB.utf8
en_HK.utf8
en_IE.utf8
en_IL
en_IL.utf8
en_IN
en_IN.utf8
en_NG
en_NG.utf8
en_NZ.utf8
en_PH.utf8
en_SG.utf8
en_US.utf8
en_ZA.utf8
en_ZM
en_ZM.utf8
en_ZW.utf8
it_CH.utf8
it_IT.utf8
POSIX

[madi]

LC_ALL=wrong python3 -c "import locale; print(locale.getdefaultlocale())"

LC_ALL=wrong python3 -c "import locale; print(locale.getdefaultlocale())"
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python3.10/locale.py", line 584, in getdefaultlocale
return _parse_localename(localename)
File "/usr/lib/python3.10/locale.py", line 511, in _parse_localename
raise ValueError('unknown locale: %s' % localename)
ValueError: unknown locale: wrong

[madi]

printenv
python -c "import locale; print(locale.getdefaultlocale())"

printenv
python -c "import locale; print(locale.getdefaultlocale())"
SHELL=/bin/bash
SESSION_MANAGER=local/ThinkPad-P53:@/tmp/.ICE-unix/2790,unix/ThinkPad-P53:/tmp/.ICE-unix/2790
QT_ACCESSIBILITY=1
COLORTERM=truecolor
XDG_CONFIG_DIRS=/etc/xdg/xdg-ubuntu:/etc/xdg
SSH_AGENT_LAUNCHER=gnome-keyring
XDG_MENU_PREFIX=gnome-
JDK_HOME=/usr/lib/jvm/java-8-openjdk-amd64
GNOME_DESKTOP_SESSION_ID=this-is-deprecated
GTK_IM_MODULE=ibus
LC_ADDRESS=it_IT.UTF-8
JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
GNOME_SHELL_SESSION_MODE=ubuntu
LC_NAME=it_IT.UTF-8
SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
XMODIFIERS=@im=ibus
DESKTOP_SESSION=ubuntu
LC_MONETARY=it_IT.UTF-8
SNAP_HOME=/home/madi/src/esa-snappy/src/main/resources/
GTK_MODULES=gail:atk-bridge
PWD=/home/madi
LOGNAME=madi
XDG_SESSION_DESKTOP=ubuntu
XDG_SESSION_TYPE=x11
GPG_AGENT_INFO=/run/user/1000/gnupg/S.gpg-agent:0:1
SYSTEMD_EXEC_PID=2813
XAUTHORITY=/run/user/1000/gdm/Xauthority
WINDOWPATH=2
HOME=/home/madi
USERNAME=madi
IM_CONFIG_PHASE=1
LC_PAPER=it_IT.UTF-8
LANG=en_US.UTF-8
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:.tar=01;31:.tgz=01;31:.arc=01;31:.arj=01;31:.taz=01;31:.lha=01;31:.lz4=01;31:.lzh=01;31:.lzma=01;31:.tlz=01;31:.txz=01;31:.tzo=01;31:.t7z=01;31:.zip=01;31:.z=01;31:.dz=01;31:.gz=01;31:.lrz=01;31:.lz=01;31:.lzo=01;31:.xz=01;31:.zst=01;31:.tzst=01;31:.bz2=01;31:.bz=01;31:.tbz=01;31:.tbz2=01;31:.tz=01;31:.deb=01;31:.rpm=01;31:.jar=01;31:.war=01;31:.ear=01;31:.sar=01;31:.rar=01;31:.alz=01;31:.ace=01;31:.zoo=01;31:.cpio=01;31:.7z=01;31:.rz=01;31:.cab=01;31:.wim=01;31:.swm=01;31:.dwm=01;31:.esd=01;31:.jpg=01;35:.jpeg=01;35:.mjpg=01;35:.mjpeg=01;35:.gif=01;35:.bmp=01;35:.pbm=01;35:.pgm=01;35:.ppm=01;35:.tga=01;35:.xbm=01;35:.xpm=01;35:.tif=01;35:.tiff=01;35:.png=01;35:.svg=01;35:.svgz=01;35:.mng=01;35:.pcx=01;35:.mov=01;35:.mpg=01;35:.mpeg=01;35:.m2v=01;35:.mkv=01;35:.webm=01;35:.webp=01;35:.ogm=01;35:.mp4=01;35:.m4v=01;35:.mp4v=01;35:.vob=01;35:.qt=01;35:.nuv=01;35:.wmv=01;35:.asf=01;35:.rm=01;35:.rmvb=01;35:.flc=01;35:.avi=01;35:.fli=01;35:.flv=01;35:.gl=01;35:.dl=01;35:.xcf=01;35:.xwd=01;35:.yuv=01;35:.cgm=01;35:.emf=01;35:.ogv=01;35:.ogx=01;35:.aac=00;36:.au=00;36:.flac=00;36:.m4a=00;36:.mid=00;36:.midi=00;36:.mka=00;36:.mp3=00;36:.mpc=00;36:.ogg=00;36:.ra=00;36:.wav=00;36:.oga=00;36:.opus=00;36:.spx=00;36:.xspf=00;36:
XDG_CURRENT_DESKTOP=ubuntu:GNOME
VTE_VERSION=6800
GNOME_TERMINAL_SCREEN=/org/gnome/Terminal/screen/93b934d3_224e_4dfb_a718_83a391b23af0
LESSCLOSE=/usr/bin/lesspipe %s %s
XDG_SESSION_CLASS=user
TERM=xterm-256color
LC_IDENTIFICATION=it_IT.UTF-8
LESSOPEN=| /usr/bin/lesspipe %s
USER=madi
GNOME_TERMINAL_SERVICE=:1.105
DISPLAY=:1
SHLVL=1
LC_TELEPHONE=it_IT.UTF-8
QT_IM_MODULE=ibus
LC_MEASUREMENT=it_IT.UTF-8
LD_LIBRARY_PATH=/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/server/libjvm.so:
XDG_RUNTIME_DIR=/run/user/1000
LC_TIME=it_IT.UTF-8
XDG_DATA_DIRS=/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/:/var/lib/snapd/desktop
PATH=/home/madi/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin
GDMSESSION=ubuntu
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
LC_NUMERIC=it_IT.UTF-8
_=/usr/bin/printenv
('en_US', 'UTF-8')

[tmszi]

What will be happened if @madi manually edit $EDITOR $HOME/.grass8/wx.json and change lang locale lc_all from bn to en, and then try to launch GRASS GIS again please?

  "language": {
    "locale": {
      "lc_all": "en"
    }
  },

[madi]

What will be happened if @madi manually edit $EDITOR $HOME/.grass8/wx.json and change lang locale lc_all from bn to en, and then try to launch GRASS GIS again please?

  "language": {
    "locale": {
      "lc_all": "en"
    }
  },

It worked. Thank you! Closing the issue and thanks to all!

[marisn]

Reopening as better handling of unknown locales needs to be implemented.

[tmszi]

Under my distribution Gentoo GNU/Linux I have enabled these locales:

tomas@gentoo-gnu-linux:~$ locale -a
C
cs_CZ
cs_CZ.iso88592
cs_CZ.utf8
C.utf8
en_US
en_US.iso88591
en_US.utf8
POSIX
sk_SK
sk_SK.iso88592
sk_SK.utf8

Current locale settings

tomas@gentoo-gnu-linux:~$ locale
LANG=en_US.utf8
LC_CTYPE="en_US.utf8"
LC_NUMERIC="en_US.utf8"
LC_TIME="en_US.utf8"
LC_COLLATE="en_US.utf8"
LC_MONETARY="en_US.utf8"
LC_MESSAGES="en_US.utf8"
LC_PAPER="en_US.utf8"
LC_NAME="en_US.utf8"
LC_ADDRESS="en_US.utf8"
LC_TELEPHONE="en_US.utf8"
LC_MEASUREMENT="en_US.utf8"
LC_IDENTIFICATION="en_US.utf8"
LC_ALL=

When I change GRASS GIS lang to bn (via GUI settings) and relaunch GRASS GIS, I get

1. CLI warning message Failed to enforce user specified language 'bn' with error: 'unsupported locale setting' A LANGUAGE environmental variable has been set.

tomas@gentoo-gnu-linux:~$ grass
Failed to enforce user specified language 'bn' with error: 'unsupported locale setting'
A LANGUAGE environmental variable has been set.
Part of messages will be displayed in the requested language.
Starting GRASS GIS...

          __________  ___   __________    _______________
         / ____/ __ \/   | / ___/ ___/   / ____/  _/ ___/
        / / __/ /_/ / /| | \__ \\_  \   / / __ / / \__ \
       / /_/ / _, _/ ___ |___/ /__/ /  / /_/ // / ___/ /
       \____/_/ |_/_/  |_/____/____/   \____/___//____/

Welcome to GRASS GIS 8.4.0dev (f01e1ba3f)
GRASS GIS homepage:                      https://grass.osgeo.org
This version running through:            Bash Shell (/bin/bash)
Help is available with the command:      g.manual -i
See the licence terms with:              g.version -c
See citation options with:               g.version -x
Start the GUI with:                      g.gui wxpython
When ready to quit enter:                exit

GRASS nc_basic_spm_grass7/PERMANENT:~ >

2. GUI show warning message Cannot set locale to language "".