python2.6 crashed with SystemError in commit()

[Helder Meneses]

Binary package hint: python2.6

ok

ProblemType: Crash
Architecture: i386
Dependencies:
 libgcc1 1:4.3.3-5ubuntu2
 zlib1g 1:1.2.3.3.dfsg-12ubuntu1
 gcc-4.3-base 4.3.3-5ubuntu2
 findutils 4.4.0-2ubuntu3
 libc6 2.9-4ubuntu2
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/python2.6
InterpreterPath: /usr/bin/python2.6
NonfreeKernelModules: nvidia
Package: python2.6-minimal 2.6.1-1ubuntu1
ProcAttrCurrent: unconfined
ProcCmdline: python /usr/bin/install-package --install libtunepimp5-mp3 flashplugin-nonfree libmp3lame0 libavcodec-unstripped-52 libxine1-ffmpeg libdvdread3
ProcEnviron:
 LANGUAGE=pt:pt_BR:en
 PATH=(custom, no user)
 LANG=pt_PT.UTF-8
 SHELL=/bin/bash
PythonArgs: []
SourcePackage: python2.6
Title: python2.6 crashed with SystemError in commit()
Traceback:
 Traceback (most recent call last):
   File "/usr/bin/install-package", line 196, in commit
     apt_pkg.PkgSystemLock()
 SystemError: E:Não foi possível obter acesso exclusivo a /var/lib/dpkg/lock - open (11 Recurso indisponível temporariamente), E:Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
Uname: Linux 2.6.28-9-generic i686
UserGroups: