Python Webkit's Inspector gives js errors and is missing a few features.

[NoBugs!]

I'm getting locale errors when running a webkit browser with inspector similar to this one:
https://code.google.com/p/pywebkitgtk/source/browse/trunk/demos/inspector.py?r=142

** Message: console message: file:///usr/share/webkitgtk-1.0/webinspector/UIString.js @42: Localized string "Go to line" not found.
** Message: console message: file:///usr/share/webkitgtk-1.0/webinspector/UIString.js @42: Localized string "Filter" not found.
** Message: console message: file:///usr/share/webkitgtk-1.0/webinspector/UIString.js @42: Localized string "Search Previous" not found.
** Message: console message: file:///usr/share/webkitgtk-1.0/webinspector/UIString.js @42: Localized string "Search Next" not found.
** Message: console message: file:///usr/share/webkitgtk-1.0/webinspector/UIString.js @42: Localized string "α:" not found.
** Message: console message: file:///usr/share/webkitgtk-1.0/webinspector/UIString.js @42: Localized string "%d of %d" not found.
(geany:2487): Gdk-CRITICAL **: IA__gdk_error_trap_pop: assertion `gdk_error_traps != NULL' failed
** Message: console message: file:///usr/share/webkitgtk-1.0/webinspector/UIString.js @42: Localized string "Sources Panel" not found.
** Message: console message: file:///usr/share/webkitgtk-1.0/webinspector/UIString.js @42: Localized string "Toggle breakpoint" not found.
** Message: console message: file:///usr/share/webkitgtk-1.0/webinspector/UIString.js @42: Localized string "Painting" not found.

I also don't see the breadcrumb/slider bar in the middle. See screenshot:
http://stackoverflow.com/questions/13132459/python-webkit-browsers-inspector-is-missing-a-few-things

It happens in pygtk and the newer GTK3 gi.repository webkit (only difference I noticed was that GTK3 inspector didn't have scrollbar arrows).

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: python-webkit 1.1.8-2ubuntu3
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Tue Oct 30 18:30:49 2012
InstallationDate: Installed on 2012-03-07 (238 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: pywebkitgtk
UpgradeStatus: Upgraded to quantal on 2012-09-15 (45 days ago)

[NoBugs! (luke32j)]

I just tested this and this same Webkit inspector seems to be working fine on a 12.04 machine.

[NoBugs! (luke32j)]

This is still happening in 13.04 beta. Am I doing something wrong or are these features permanently disabled now?

[NoBugs! (luke32j)]

It should be noted that this is also happening in Midori, so this is probably a bug in gtk/webkit, not the Python interface.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Deniz (deniz-dezigner)]

found, that many gtk webkit based applications affected by this bug:
luakit:
https://github.com/mason-larobina/luakit/issues/273
dwb:
https://bbs.archlinux.org/viewtopic.php?pid=1539031#p1539031
midori and uzbl too.