Bug#618117: [CRASH] Uncaught exception AttributeError in Backend/PythonApt.py:801

[debian]

Package: update-manager-core
Version: 0.200.5-1
Severity: normal
File: /usr/share/pyshared/UpdateManager/Backend/PythonApt.py



*** /tmp/update-manager-bug07Zqbh
The information below has been automatically generated.
Please do not remove this from your bug report.

- Exception Type: <type 'exceptions.AttributeError'>
- Exception Value: AttributeError("'NoneType' object has no attribute
'get_package_list'",)
- Exception Origin: <BugHandler.Thread(PythonAptCommit, started -1323021456)>
- Exception Traceback:
  File "/usr/lib/pymodules/python2.6/UpdateManager/BugHandler.py", line 89, in
run
    threading.Thread.run(self, *args, **kwargs)
  File "/usr/lib/python2.6/threading.py", line 484, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib/pymodules/python2.6/UpdateManager/Backend/PythonApt.py", line
801, in thread_helper
    for pkg_info in self._available_updates.get_package_list():




-- System Information:
Debian Release: 6.0
  APT prefers squeeze-updates
  APT policy: (500, 'squeeze-updates'), (500, 'proposed-updates'), (500,
'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686 (SMP w/2 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages update-manager-core depends on:
ii  lsb-release             3.2-23.2squeeze1 Linux Standard Base version report
ii  python                  2.6.6-3+squeeze6 interactive high-level object-orie
ii  python-apt              0.7.100.1        Python interface to libapt-pkg
ii  python-support          1.0.10           automated rebuilding support for P

Versions of packages update-manager-core recommends:
ii  update-manager-gnome          0.200.5-1  GNOME application that manages sof

update-manager-core suggests no packages.