[Bug 1020337] Re: backend_helper.py crashed with Depends in _run(): python3-distupgrade (= 1:0.165) but it is not installed

[Apport retracing service]

*** This bug is a duplicate of bug 1020240 ***
    https://bugs.launchpad.net/bugs/1020240

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1020240, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** Tags removed: need-duplicate-check

** Attachment removed: "ProcMaps.txt"
   https://bugs.launchpad.net/bugs/1020337/+attachment/3211356/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
   https://bugs.launchpad.net/bugs/1020337/+attachment/3211357/+files/ProcStatus.txt

** This bug has been marked a duplicate of private bug 1020240

** Visibility changed to: Public

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https://bugs.launchpad.net/bugs/1020337

Title:
  backend_helper.py crashed with                              Depends in
  _run(): python3-distupgrade (= 1:0.165) but it is not installed

Status in “update-notifier” package in Ubuntu:
  New

Bug description:
  This error occurred during an update.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: update-notifier-common 0.119ubuntu15
  ProcVersionSignature: Ubuntu 3.5.0-2.2-generic 3.5.0-rc4
  Uname: Linux 3.5.0-2-generic x86_64
  ApportVersion: 2.2.5-0ubuntu2
  Architecture: amd64
  Date: Mon Jul  2 18:07:07 2012
  ExecutablePath: /usr/lib/update-notifier/backend_helper.py
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120626.1)
  InterpreterPath: /usr/bin/python2.7
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python /usr/lib/update-notifier/backend_helper.py install_all_updates
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  PythonArgs: ['/usr/lib/update-notifier/backend_helper.py', 'install_all_updates']
  SourcePackage: update-notifier
  Title: backend_helper.py crashed with                              Depends in _run(): python3-distupgrade (= 1:0.165) but it is not installed
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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