applet.py crashed with KeyError in refresh()

[Steffen Röcker]

Binary package hint: system-config-printer

This happened after cups has been restarted after a crash.

ProblemType: Crash
DistroRelease: Ubuntu 10.04
Package: system-config-printer-gnome 1.2.0+20100408-0ubuntu5.2
ProcVersionSignature: Ubuntu 2.6.32-30.59-generic 2.6.32.29+drm33.13
Uname: Linux 2.6.32-30-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
CupsErrorLog: E [21/Apr/2011:12:29:16 +0200] Unable to remove temporary file "/var/spool/cups/tmp/.hplip" - Is a directory
Date: Thu Apr 21 12:29:20 2011
ExecutablePath: /usr/share/system-config-printer/applet.py
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
InterpreterPath: /usr/bin/python2.6
Lpstat:
 device for ekpccprinterAtFZK_HPColorLJCP2025dn: ipp://129.13.102.248:631/printers/ekpccprinterAtFZK_HPColorLJCP2025dn
 device for lp0: ipp://129.13.102.248:631/printers/lp0
 device for lp1: ipp://129.13.102.248:631/printers/lp1
 device for lp2: ipp://129.13.102.248:631/printers/lp2
 device for lptrans: ipp://129.13.102.248:631/printers/lptrans
MachineType: Hewlett-Packard HP Compaq dc5850 Microtower
PackageArchitecture: all
Papersize: a4
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-30-generic root=UUID=ebb5e293-5dad-4d5a-9415-a2fc432bcc88 ro quiet splash
ProcCmdline: python /usr/share/system-config-printer/applet.py
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/share/system-config-printer/applet.py']
SourcePackage: system-config-printer
Title: applet.py crashed with KeyError in refresh()
UserGroups: audio audioalt dialout plugdev video
dmi.bios.date: 04/09/2008
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 786F6 v01.09
dmi.board.name: 3029h
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: CZC8335ZZ6
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr786F6v01.09:bd04/09/2008:svnHewlett-Packard:pnHPCompaqdc5850Microtower:pvr:rvnHewlett-Packard:rn3029h:rvr:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP Compaq dc5850 Microtower
dmi.sys.vendor: Hewlett-Packard

[Till Kamppeter (till-kamppeter)]

Tim, can you have a look into this problem?

[Drew Scott Daniels (drewdaniels)]

Hi,

Seems straight forward in where the problem is (though maybe not the root cause):
...
File "/usr/share/system-config-printer/monitor.py", line 553, in refresh
    if job['job-state'] < cups.IPP_JOB_CANCELED:
KeyError: 'job-state'
...
Relevant code:
    545 debugprint ("Created subscription %d" % self.sub_id)
    546
    547 if self.monitor_jobs:
    548 jobs = self.jobs.copy ()
    549 if self.which_jobs not in ['all', 'completed']:
    550 # Filter out completed jobs.
    551 filtered = {}
    552 for jobid, job in jobs.iteritems ():
    553 if job['job-state'] < cups.IPP_JOB_CANCELED:
    554 filtered[jobid] = job
    555 jobs = filtered

So job exists but doesn't have a state. I guess a check for job having that key could be done, but I don't know whether filtered is needed.

If you need debugging turned on, I may be able to help. I'd prefer instructions as I don't want to look it up. As it's python I could even add some code, but again I don't want to spend much time looking things up right now so some direction would speed things up for us.

Thanks,

     Drew Daniels
Blog: http://www.boxheap.net/ddaniels/blog