I'm replying directly here, not via launchpad's bug listing. The first
thing that I tried after the upgrade broke was apt-get -f install, and that
gave me the error that apt (and the upgrade) was broken.

As apt is broken, I would probably have to install python-launchpad outside
of apt/dpkg and that would probably mean modifying the install scripts.

Regards

On Aug 31, 2012 7:55 AM, "Steve Langasek" <email address hidden>
wrote:
>
> Have you tried the 'apt-get -f install' command shown in the apt error
> message to fix your installation?
>
> You may need to manually install the python-launchpadlib package to use
> the apport command.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/990740
>
> Title:
>   upgrading from lucid to precise fails
>
> Status in “python-defaults” package in Ubuntu:
>   Invalid
>
> Bug description:
>   Trying to "apt-get dist-upgrade" from lucid to precise I get the
>   following error:
>
>   E: Could not perform immediate configuration on 'python-
>   minimal'.Please see man 5 apt.conf under APT::Immediate-Configure for
>   details. (2)
>
>   So I tried to upgrade just python-minimal and it failed the same:
>
>   root@linux:/var/tmp# apt-get install python-minimal
>   Reading package lists... Done
>   Building dependency tree
>   Reading state information... Done
>   The following packages were automatically installed and are no longer
required:
>     libtext-csv-xs-perl libdbd-csv-perl libgs8 cpp-4.1
>   Use 'apt-get autoremove' to remove them.
>   The following extra packages will be installed:
>     libapt-inst1.4 libcurl3-gnutls librtmp0 lsb-release python
python-apport python-apt python-apt-common python-gdbm python-lxml
python-mysqldb python-pkg-resources python-problem-report
>     python-pycurl python-pysqlite2 python-simplejson
python-software-properties python-support python-twisted-bin
python-twisted-core python-zope.interface python2.7 python2.7-minimal
>   Suggested packages:
>     lsb python-doc python-tk python-apt-dbg python-gtk2 python-vte
python-apt-doc python-gdbm-dbg python-lxml-dbg python-egenix-mxdatetime
python-mysqldb-dbg python-distribute python-distribute-doc
>     libcurl4-gnutls-dev python-pycurl-dbg python-pysqlite2-doc
python-pysqlite2-dbg python-twisted-bin-dbg python-glade2 python-qt3
python-wxgtk2.8 python2.7-doc binfmt-support
>   Recommended packages:
>     xz-lzma python-openssl python-pam python-serial
>   The following packages will be REMOVED:
>     python2.5 python2.5-minimal
>   The following NEW packages will be installed:
>     libapt-inst1.4 librtmp0 python-apt-common python2.7 python2.7-minimal
>   The following packages will be upgraded:
>     libcurl3-gnutls lsb-release python python-apport python-apt
python-gdbm python-lxml python-minimal python-mysqldb python-pkg-resources
python-problem-report python-pycurl python-pysqlite2
>     python-simplejson python-software-properties python-support
python-twisted-bin python-twisted-core python-zope.interface
>   19 upgraded, 5 newly installed, 2 to remove and 718 not upgraded.
>   Need to get 0B/7,492kB of archives.
>   After this operation, 3,121kB disk space will be freed.
>   Do you want to continue [Y/n]? y
>   E: Could not perform immediate configuration on 'python-minimal'.Please
see man 5 apt.conf under APT::Immediate-Configure for details. (2)
>
>   Clearly this is an acceptable situation when trying to upgrade from
>   one LTS to another.
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 10.04
>   Package: python-minimal 2.6.5-0ubuntu1
>   ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
>   Uname: Linux 2.6.32-22-generic i686
>   Architecture: i386
>   Date: Sat Apr 28 16:43:25 2012
>   PackageArchitecture: all
>   ProcEnviron:
>    LANG=en_CA.UTF-8
>    SHELL=/bin/bash
>   SourcePackage: python-defaults
>
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>
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