I get the message 'Kross: "Action::setInterpreter: interpreter not found: python"'

Binary package hint: kde4libs

In Kubuntu Karmic 9.10 alpha 2 live cd, when I load a file in kspread, the following messages appear on the console from which kspread was started.

Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: python"
Kross: "Action::setInterpreter: interpreter not found: ruby"

python and ruby are of course installed.

Although these messages, kspread works.

ubuntu@ubuntu:~$ lsb_release -rd
  Description: Ubuntu karmic (development branch)

ProblemType: Bug
Architecture: i386
Date: Wed Jun 24 21:27:34 2009
DistroRelease: Ubuntu 9.10
LiveMediaBuild: Kubuntu 9.10 "Karmic Koala" - Alpha i386 (20090610.3)
Package: kdelibs-bin 4:4.2.90-0ubuntu1
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.30-8.9-generic
SourcePackage: kde4libs
Uname: Linux 2.6.30-8-generic i686