package python3.0 3.0~rc1+20081027-0ubuntu1 failed to install/upgrade: Versuche, ?/usr/lib/python3.0/lib-dynload/_pickle.so? zu ?berschreiben, welches auch in Paket python3.0-minimal ist

After trying...:

sudo dpkg --configure -a
sudo apt-get update

I then tried...:
sudo apt-get upgrade

...which resulted in the following messages...:

Paketlisten werden gelesen... Fertig
Abhängigkeitsbaum wird aufgebaut
Lese Status-Informationen ein... Fertig
Probieren Sie »apt-get -f install«, um diese zu korrigieren.
Die folgenden Pakete haben nicht erfüllte Abhängigkeiten:
  python3.0: Hängt ab: python3.0-minimal (= 3.0~rc1+20081027-0ubuntu1) aber 3.0~rc3-0ubuntu3 ist installiert
E: Nicht erfüllte Abhängigkeiten. Versuchen Sie, -f zu benutzen.

Do I guess right that the intrepid version be being somehow considered the proper current version with the result that the jaunty version be considered uninstallable?

Please note that I am using the OpenOffice.org Version 3 under jaunty, which I download and install however from out of the intrepid repository...:

http://ppa.launchpad.net/openoffice-pkgs/ubuntu intrepid main

Does that somehow cause a mix-up resulting in the above problem?

OK... after the above measures were taken, I was able to use synaptic to install the python3 package...:

"python3.0 (Version 3.0~rc1+20081027-0ubuntu1) wird auf die Version 3.0~rc3-0ubuntu3 aktualisiert"

and in the aftermath to then install first one then the newest mono packages. Apparently, everything (?) is now okay, at least as far as synaptic be concerned.

Unless there be other matters involved here of which I am not aware, please therefore consider this case to have become solved.

Sorry to have troubled you.

No, I can reproduce this issue when upgrading from intrepid to jaunty. Note that you can workaround this problem by removing python3.0 and python3.0-minimal and installing them again.

Adding python3.0-minimal as a pre-depends for python3.0 should fix the issue.

Hi Kjell,

Thanks for working on this.

While Pre-Depends may be the correct solution here there is a
reluctance to add them if other solutions are possible.

Could you post your assesment of the problem and the reasoning
for a Pre-Depends to the ubuntu-devel mailing list so that
other solutions can be proposed?

Thanks,

James

Surely the proper solution to files moving between packages is Replaces, not Pre-Depends.

That is, when files move from package A to package B, B should Replaces: A (<< first-version-where-files-are-no-longer-in-A).

This bug was fixed in the package python3.0 - 3.0~rc3-0ubuntu4

---------------
python3.0 (3.0~rc3-0ubuntu4) jaunty; urgency=low

  * Update to 20081127 from the py3k branch.
  * Ensure that all extensions from the -minimal package are statically
    linked into the interpreter. LP: #301597.
  * Include expat, _elementtree, datetime in -minimal to link
    these extensions statically.

 -- Matthias Klose <email address hidden> Thu, 27 Nov 2008 08:49:02 +0100