udev-add-printer crashed with ImportError in /usr/lib/python2.7/dist-packages/cupshelpers/cupshelpers.py: No module named packagekit.client

Crashed after attaching an officejet 6500 for the first time.

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: system-config-printer-udev 1.3.5+20110731-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-7.9-generic 3.0.0
Uname: Linux 3.0.0-7-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
CupsErrorLog:

Date: Mon Aug 1 01:15:15 2011
ExecutablePath: /lib/udev/udev-add-printer
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
InterpreterPath: /usr/bin/python2.7
Lpstat:
 device for Brother-DCP-353C: usb://Brother/DCP-357C
 device for MP250-series: usb://Canon/MP250%20series
 device for Officejet_6500_E709n: hp:/net/Officejet_6500_E709n?zc=HPC9C7BC
 device for Officejet_6500_E709n_fax: hpfax:/net/Officejet_6500_E709n?zc=HPC9C7BC
MachineType: Hewlett-Packard HP TouchSmart tx2 Notebook PC
Papersize: a4
PpdFiles:
 Officejet_6500_E709n_fax: HP Fax hpcups
 MP250-series: Canon MP250 series Ver.3.40
 Officejet_6500_E709n: HP Officejet 6500 e709n, hpcups 3.11.5
 Brother-DCP-353C: Brother DCP-353C CUPS v1.1
ProcCmdline: /usr/bin/python /lib/udev/udev-add-printer MFG:HP;MDL:Officejet\ 6500\ E709n;CMD:MLC,PCL,DW-PCL,PML,802.11,802.3,DESKJET,DYN;1284.4DL:4d,4e,1;CLS:PRINTER;DES:CB057A;LEDMDIS:DOT4#44;SN:TH05I3408Z05G2;S:038080C484001021005a0c8000045d0005044d0005a46d0005a41d00064;Z:0102,05000009000001000001000001000001,0600,0700000000000000000000,0b000000000000000000000000000000000000000000000000000000000000,0c0,0e00000000000000000000,0f00000000000000000000,10000002000008000008000008000008,110,12000,150; hp:/usb/Officejet_6500_E709n?serial=TH05I3408Z05G2 usb://HP/Officejet%206500%20E709n?serial=TH05I3408Z05G2&interface=1 hpfax:/usb/Officejet_6500_E709n?serial=TH05I3408Z05G2
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-7-generic root=UUID=dfa8f1a3-5318-41f6-8fa4-9ab32e008eaa ro quiet splash vt.handoff=7
PythonArgs: ['/lib/udev/udev-add-printer', 'MFG:HP;MDL:Officejet 6500 E709n;CMD:MLC,PCL,DW-PCL,PML,802.11,802.3,DESKJET,DYN;1284.4DL:4d,4e,1;CLS:PRINTER;DES:CB057A;LEDMDIS:DOT4#44;SN:TH05I3408Z05G2;S:038080C484001021005a0c8000045d0005044d0005a46d0005a41d00064;Z:0102,05000009000001000001000001000001,0600,0700000000000000000000,0b000000000000000000000000000000000000000000000000000000000000,0c0,0e00000000000000000000,0f00000000000000000000,10000002000008000008000008000008,110,12000,150;', 'hp:/usb/Officejet_6500_E709n?serial=TH05I3408Z05G2', 'usb://HP/Officejet%206500%20E709n?serial=TH05I3408Z05G2&interface=1', 'hpfax:/usb/Officejet_6500_E709n?serial=TH05I3408Z05G2']
SourcePackage: system-config-printer
Title: udev-add-printer crashed with ImportError in /usr/lib/python2.7/dist-packages/cupshelpers/cupshelpers.py: No module named packagekit.client
UpgradeStatus: Upgraded to oneiric on 2011-07-25 (6 days ago)
UserGroups:

dmi.bios.date: 08/25/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.21
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3045
dmi.board.vendor: Quanta
dmi.board.version: 16.14
dmi.chassis.type: 10
dmi.chassis.vendor: Quanta
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.21:bd08/25/2009:svnHewlett-Packard:pnHPTouchSmarttx2NotebookPC:pvrRev1:rvnQuanta:rn3045:rvr16.14:cvnQuanta:ct10:cvrN/A:
dmi.product.name: HP TouchSmart tx2 Notebook PC
dmi.product.version: Rev 1
dmi.sys.vendor: Hewlett-Packard