python2.6 crashed with SystemError in commit()

[Daniel]

Binary package hint: python2.6

I opened system settings and tried to edit regional and language options and install a new language. The program tried to connect and get the new packages then I recieved the message that python has crashed.

ProblemType: Crash
Architecture: i386
Dependencies:
 libgcc1 1:4.3.3-5ubuntu4
 zlib1g 1:1.2.3.3.dfsg-12ubuntu2
 gcc-4.3-base 4.3.3-5ubuntu4
 findutils 4.4.0-2ubuntu3
 libc6 2.9-4ubuntu4
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/python2.6
InterpreterPath: /usr/bin/python2.6
NonfreeKernelModules: nvidia
Package: python2.6-minimal 2.6.1-1ubuntu7
ProcAttrCurrent: unconfined
ProcCmdline: python /usr/bin/install-package --install language-pack-kde-en language-pack-kde-en-base language-pack-kde-en
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 LANGUAGE=en_US
 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 202, in commit
     apt_pkg.PkgSystemLock()
 SystemError: E:Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable), E:Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
Uname: Linux 2.6.27-11-generic i686
UserGroups: