gnome-language-selector fails to start

[Mingming Ren]

Binary package hint: language-selector

gnome-language-selector fails to start with these errors:

/usr/lib/python2.5/site-packages/LanguageSelector/gtk/GtkLanguageSelector.py:731: GtkWarning: gtk_cell_view_set_cell_data: assertion `cell_view->priv->displayed_row != NULL' failed
  cell = combo.get_child().get_cell_renderers()[0]
Traceback (most recent call last):
  File "/usr/bin/gnome-language-selector", line 31, in <module>
    options=options)
  File "/usr/lib/python2.5/site-packages/LanguageSelector/gtk/GtkLanguageSelector.py", line 146, in __init__
    self.verifyInstalledLangPacks()
  File "/usr/lib/python2.5/site-packages/LanguageSelector/gtk/GtkLanguageSelector.py", line 608, in verifyInstalledLangPacks
    missing = self.getMissingLangPacks()
  File "/usr/lib/python2.5/site-packages/LanguageSelector/LanguageSelector.py", line 59, in getMissingLangPacks
    if "_" in default_lang:
TypeError: argument of type 'NoneType' is not iterable
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/apport_python_hook.py", line 85, in apport_excepthook
    os.O_WRONLY|os.O_CREAT|os.O_EXCL), 'w')
OSError: [Errno 17] File exists: '/var/crash/_usr_bin_gnome-language-selector.1000.crash'

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/gnome-language-selector", line 31, in <module>
    options=options)
  File "/usr/lib/python2.5/site-packages/LanguageSelector/gtk/GtkLanguageSelector.py", line 146, in __init__
    self.verifyInstalledLangPacks()
  File "/usr/lib/python2.5/site-packages/LanguageSelector/gtk/GtkLanguageSelector.py", line 608, in verifyInstalledLangPacks
    missing = self.getMissingLangPacks()
  File "/usr/lib/python2.5/site-packages/LanguageSelector/LanguageSelector.py", line 59, in getMissingLangPacks
    if "_" in default_lang:
TypeError: argument of type 'NoneType' is not iterable