pymcaroitool crashed with NameError in /usr/lib/python2.7/dist-packages/mdp/nodes/__init__.py: name 'convolution_nodes' is not defined

I am on Ubuntu12.04 updated to 7.4.2012.

I have jsut closed yade0.70.0 which ships with the science-physics metapackage.

On closing apport catched that here. May be just correlated and not caused. I have not tried to reproduce.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: pymca 4.4.1p1-2
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
Uname: Linux 3.2.0-22-generic x86_64
ApportVersion: 2.0-0ubuntu4
Architecture: amd64
Date: Sat Apr 7 14:26:24 2012
ExecutablePath: /usr/bin/pymcaroitool
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64+mac (20120328)
InterpreterPath: /usr/bin/python2.7
ProcCmdline: /usr/bin/python /usr/bin/pymcaroitool
ProcEnviron:
 PATH=(custom, no username)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/pymcaroitool']
SourcePackage: pymca
Title: pymcaroitool crashed with NameError in /usr/lib/python2.7/dist-packages/mdp/nodes/__init__.py: name 'convolution_nodes' is not defined
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo