$ LC_ALL="eu_ES" alacarte
Traceback (most recent call last):
  File "/usr/bin/alacarte", line 36, in ?
    main()
  File "/usr/bin/alacarte", line 32, in main
    app = MainWindow(datadir, version, sys.argv)
  File "/usr/lib/python2.4/site-packages/Alacarte/MainWindow.py", line 45, in __init__
    self.editor = MenuEditor()
  File "/usr/lib/python2.4/site-packages/Alacarte/MenuEditor.py", line 35, in __init__
    self.locale = locale.getdefaultlocale()[0]
  File "/usr/lib/python2.4/locale.py", line 346, in getdefaultlocale
    return _parse_localename(localename)
  File "/usr/lib/python2.4/locale.py", line 278, in _parse_localename
    raise ValueError, 'unknown locale: %s' % localename
ValueError: unknown locale: eu_ES