This bug was fixed in the package update-manager - 1:0.160

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update-manager (1:0.160) quantal; urgency=low

  [ Colin Watson ]
  * Use Python 3-style print functions.
  * Use "except Exception as e" syntax rather than the old-style "except
    Exception, e".
  * Fix a few assorted pyflakes warnings.
  * Use string methods rather than functions from the string module.
  * Replace most uses of filter and map with list comprehensions or for
    loops.
  * Use open() rather than file().
  * Use Python 3 renaming of ConfigParser if available.
  * Use "raise Exception(value)" syntax rather than the old-style "raise
    Exception, value".
  * Remove duplicate imports of os.path; 'import os' is enough.
  * Use Python 3 renamings of urllib, urllib2, and urlparse if available.
  * Remove all hard tabs from Python code.  Python 3 no longer tolerates
    mixing tabs and spaces for indentation.
  * Use Python 3 renaming of httplib if available.
  * Use email.utils.parsedate (with a DST handling correction) rather than
    the long-deprecated rfc822.parsedate.
  * Use the threading module instead of thread (renamed to _thread in Python
    3).
  * Tell Python to use absolute imports by default, and annotate cases where
    we need relative imports.
  * Update test_proxy to use gsettings and the python-apt 0.8 API.
  * Use new-style octal literals.
  * Drop use of deprecated statvfs module.
  * Use Python 3 renamings of BaseHTTPServer and SocketServer if available.
  * Modernise use of unittest methods.
  * Use python-apt 0.8 API spellings of apt_pkg.config methods.
  * Fix several ResourceWarnings with Python 3.
  * Port to python-apt 0.8 progress classes.
  * Since python-gnupginterface is not likely to be ported to Python 3, and
    since it's almost just as easy to call gpg directly via subprocess, do
    so.
  * Use gettext if ugettext does not exist (as in Python 3).
  * Ignore __pycache__ directories, and exclude them from dist-upgrader
    tarballs.
  * Fix up module path when running AutoUpgradeTester/auto-install-tester.py
    from the build tree.
  * Add a DistUpgrade -> . symlink in DistUpgrade/, to make it possible to
    have compatible imports both in update-manager proper and in
    dist-upgrader tarballs.
  * Use only absolute imports in AutoUpgradeTester/auto-install-tester.py
    and DistUpgrade/dist-upgrade.py; these have no __package__ and so cannot
    use relative imports.
  * Open subprocesses with universal_newlines=True when expecting to read
    text from them.  On Python 2, this only enables \r\n conversion and the
    like, but on Python 3 this also causes subprocess-related file objects
    to read str rather than bytes.
  * Use "key in dict" rather than "dict.has_key(key)".
  * Pass globals() to __import__ so that relative imports work.

  [ Michael Vogt ]
  * DistUpgrade/*.py:
    - update for the 12.04 -> 12.10 upgrade
  * AutoUpgradeTester/profile/defaults.cfg.d/defaults.cfg:
    - update for precise->quantal
  * fix some remaining python-apt 0.8+ API issues

  [ Brian Murray ]
  * DistUpgrade/DistUpgradeApport.py
    - check errormsg for the English version of the dependency problems error
      first (LP: #999890)

  [ Michael Terry ]
  * Rename to Software Updater and fix some other strings to match mpt's
    spec.
  * lp:~mterry/update-manager/move-changelogs:
    - implement new app layout
 -- Michael Vogt <email address hidden>   Fri, 01 Jun 2012 17:48:54 +0200