Bug#598202: update-manager-gnome: will not start

[bill]

Package: update-manager-gnome
Version: 0.200.4-1
Severity: grave
Justification: renders package unusable

/usr/bin/update-manager
[   ERROR:UpdateManager.BugHandler] No exception handler installed.
Traceback (most recent call last):
  File "/usr/bin/update-manager", line 37, in <module>
    app = Application(APP_NAME, LOCALE_DIR, frontend='Gtk')
  File "/usr/lib/pymodules/python2.6/UpdateManager/Application.py", line 122,
in __init__
    self._load_dist_specific(dist_specific)
  File "/usr/lib/pymodules/python2.6/UpdateManager/Application.py", line 193,
in _load_dist_specific
    "dist_specific", DistBase)
  File "/usr/lib/pymodules/python2.6/UpdateManager/Application.py", line 240,
in _load_meta
    obj = symbol(*module_args, **module_kwargs)
  File "/usr/lib/pymodules/python2.6/UpdateManager/DistSpecific/Auto.py", line
32, in __init__
    dist_name = get_distribution_name()
  File "/usr/lib/pymodules/python2.6/UpdateManager/Util/lsb.py", line 64, in
get_distribution_name
    distribution_name = _invoke_lsb_release('-si')
  File "/usr/lib/pymodules/python2.6/UpdateManager/Util/lsb.py", line 56, in
_invoke_lsb_release
    raise LSBError(err)
UpdateManager.Util.lsb.LSBError: lsb_release returned error: Traceback (most
recent call last):
  File "/usr/bin/lsb_release", line 96, in <module>
    main()
  File "/usr/bin/lsb_release", line 60, in main
    distinfo = lsb_release.get_distro_information()
  File "/usr/lib/pymodules/python2.6/lsb_release.py", line 271, in
get_distro_information
    distinfo = guess_debian_release()
  File "/usr/lib/pymodules/python2.6/lsb_release.py", line 225, in
guess_debian_release
    rinfo = guess_release_from_apt()
  File "/usr/lib/pymodules/python2.6/lsb_release.py", line 179, in
guess_release_from_apt
    releases.sort(cmp = lambda x,y: RELEASES_ORDER.index(y[1]['suite']) -
RELEASES_ORDER.index(x[1]['suite']))
  File "/usr/lib/pymodules/python2.6/lsb_release.py", line 179, in <lambda>
    releases.sort(cmp = lambda x,y: RELEASES_ORDER.index(y[1]['suite']) -
RELEASES_ORDER.index(x[1]['suite']))
ValueError: list.index(x): x not in list



-- System Information:
Debian Release: squeeze/sid
  APT prefers testing-proposed-updates
  APT policy: (500, 'testing-proposed-updates'), (500, 'unstable'), (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages update-manager-gnome depends on:
ii  gconf2                2.28.1-4           GNOME configuration database syste
ii  gksu                  2.0.2-3            graphical frontend to su
ii  python                2.6.6-3            interactive high-level object-orie
ii  python-dbus           0.83.1-1           simple interprocess messaging syst
ii  python-gconf          2.28.1-1           Python bindings for the GConf conf
ii  python-gobject        2.21.4+is.2.21.3-1 Python bindings for the GObject li
ii  python-gtk2           2.17.0-4           Python bindings for the GTK+ widge
ii  python-support        1.0.10             automated rebuilding support for P
ii  python-vte            1:0.24.3-1         Python bindings for the VTE widget
ii  update-manager-core   0.200.4-1          APT update manager core functional

update-manager-gnome recommends no packages.

Versions of packages update-manager-gnome suggests:
ii  software-properties-gtk  0.60.debian-1.1 manage the repositories that you i
ii  update-notifier          0.99.3debian6   Daemon which notifies about packag

-- no debconf information