scp-dbus-service.py crashed with NameError in __lt__(): name 'lt' is not defined

[Rene Pieters]

On printing. Printing went through fine.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: system-config-printer-common 1.5.0+20140805-0ubuntu3
ProcVersionSignature: Ubuntu 3.16.0-7.12-generic 3.16.0
Uname: Linux 3.16.0-7-generic x86_64
ApportVersion: 2.14.5-0ubuntu4
Architecture: amd64
CupsErrorLog:

Date: Fri Aug 15 11:17:24 2014
ExecutablePath: /usr/share/system-config-printer/scp-dbus-service.py
InstallationDate: Installed on 2014-04-08 (128 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
InterpreterPath: /usr/bin/python3.4
Lpstat: device for Canon-MG5300-series: lpd://gnerk/PASSTHRU
MachineType: Acer Aspire One 522
PackageArchitecture: all
Papersize: a4
PpdFiles: Canon-MG5300-series: Canon MG5300 series - CUPS+Gutenprint v5.2.10
ProcCmdline: /usr/bin/python3 /usr/share/system-config-printer/scp-dbus-service.py
ProcEnviron:
 LANGUAGE=nl_NL
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=nl_NL.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-7-generic root=/dev/mapper/xubuntu--vg-root ro quiet splash elevator=deadline vt.handoff=7
PythonArgs: ['/usr/share/system-config-printer/scp-dbus-service.py']
SourcePackage: system-config-printer
Title: scp-dbus-service.py crashed with NameError in __lt__(): name 'lt' is not defined
UpgradeStatus: Upgraded to utopic on 2014-08-03 (11 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 06/08/2011
dmi.bios.vendor: Acer
dmi.bios.version: V1.12
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JE10-BZ
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.12
dmi.modalias: dmi:bvnAcer:bvrV1.12:bd06/08/2011:svnAcer:pnAspireOne522:pvrV1.12:rvnAcer:rnJE10-BZ:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.12:
dmi.product.name: Aspire One 522
dmi.product.version: V1.12
dmi.sys.vendor: Acer

[Sebastien Bacher (seb128)]

e.u.c report on https://errors.ubuntu.com/problem/a81296de8d9f1efe21cc54f2179ed9a054aeb338

those started in utopic