displayconfig.py crashed with ImportError: xorgconfig: "bad magic number"

[Daniel Hahler]

Binary package hint: kde-guidance

Starting "displayconfig" from the console results in:
$ displayconfig
Traceback (most recent call last):
  File "/usr/bin/displayconfig", line 22, in <module>
    import xorgconfig
ImportError: Bad magic number in /usr/share/python-support/kde-guidance/xorgconfig.pyc

ProblemType: Crash
Architecture: i386
Date: Mon Mar 17 22:57:24 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/share/python-support/kde-guidance/displayconfig.py
InterpreterPath: /usr/bin/python2.5
NonfreeKernelModules: nvidia
Package: kde-guidance 0.8.0svn20080103-0ubuntu5
PackageArchitecture: i386
ProcCmdline: /usr/bin/python /usr/bin/displayconfig
ProcEnviron:
 SHELL=/bin/bash
 PATH=/home/username/bin:/usr/lib/kde4/bin:/usr/lib/kde4/bin/:/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/usr/games
 LANG=de_DE.UTF-8
 LANGUAGE=
PythonArgs: ['/usr/bin/displayconfig']
SourcePackage: kde-guidance
Title: displayconfig.py crashed with ImportError in <module>()
Traceback:
 Traceback (most recent call last):
   File "/usr/bin/displayconfig", line 22, in <module>
     import xorgconfig
 ImportError: Bad magic number in /usr/share/python-support/kde-guidance/xorgconfig.pyc
Uname: Linux 2.6.24-12-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev sambashare scanner src video

[Scott Kitterman (kitterman)]

Does this happen all the time or is this a one time ocurrence?

[Daniel Hahler (blueyed)]

It happens all the time, when I run "displayconfig" from the command line (just tested it for another bug).
Apparently, there are a stale .pyc files left in /usr/share/python-support/kde-guidance, e.g.:
$ ll /usr/share/python-support/kde-guidance/xorgconfig.pyc
-rw-r--r-- 1 root root 26435 2006-09-22 03:07 /usr/share/python-support/kde-guidance/xorgconfig.pyc

After having it moved away, it complained about xf86misc.pyc and so forth.

I've now removed /usr/share/python-support/kde-guidance/*.pyc and it works.

It seems that the files have moved to guidance-backends, but the precompiled files have been left there.
The .py files are now in /usr/share/python-support/guidance-backends/ (guidance-backends).

[Scott Kitterman (kitterman)]

This is quite odd as those were in guidance backends on Gutsy too.

[Daniel Hahler (blueyed)]

It makes sense: this machine has been only (dist-)upgraded from Hoary Hedgehog onwards and I may not have used this tool in Gutsy (or something else prevented it to fail instead).

Does it make sense to fix it in postinst?

[Jonathan Thomas (echidnaman)]

Displayconfig is unmaintained and nonexistent in Intrepid, so this won't be fixed.