Application that crashed: software-properties-kde
Version of the application: 0.64
KDE Version: 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1))
Qt Version: 4.5.0
Operating System: Linux 2.6.28-13-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I tried to deactivate some urls from the settings within the system sittings and it immediately crashed.

 -- Backtrace:
Application: Software Sources (software-properties-kde), signal: Segmentation fault
[KCrash Handler]
#5  0xb6c0ade0 in QTreeWidgetItem::setData (this=0xae1e910, column=0, role=10, value=@0xbf8800c0) at itemviews/qtreewidget.cpp:1750
#6  0xb7032205 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#7  0xb6c0484f in QTreeModel::setData (this=0xad266b8, index=@0xbf8801cc, value=@0xbf8800c0, role=10) at itemviews/qtreewidget.cpp:388
#8  0xb6c3de7d in QStyledItemDelegate::editorEvent (this=0xad09240, event=0xbf880c78, model=0xad266b8, option=@0xbf88013c, index=@0xbf8801cc) at itemviews/qstyleditemdelegate.cpp:755
#9  0xb6b94176 in QAbstractItemViewPrivate::sendDelegateEvent (this=0xad4ed60, index=@0xae0c670, event=0xbf880c78) at itemviews/qabstractitemview.cpp:3829
#10 0xb6b9442b in QAbstractItemView::edit (this=0xad4e780, index=@0xae0c670, trigger=QAbstractItemView::NoEditTriggers, event=0xbf880c78) at itemviews/qabstractitemview.cpp:2322
#11 0xb7027be4 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#12 0xb6b94714 in QAbstractItemView::mouseReleaseEvent (this=0xad4e780, event=0xbf880c78) at itemviews/qabstractitemview.cpp:1647
#13 0xb6bd778c in QTreeView::mouseReleaseEvent (this=0xad4e780, event=0xbf880c78) at itemviews/qtreeview.cpp:1787
#14 0xb7034768 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#15 0xb666bb43 in QWidget::event (this=0xad4e780, event=0xbf880c78) at kernel/qwidget.cpp:7516
#16 0xb6a45993 in QFrame::event (this=0xad4e780, e=0xbf880c78) at widgets/qframe.cpp:559
#17 0xb6ae594f in QAbstractScrollArea::viewportEvent (this=0xad4e780, e=0x1) at widgets/qabstractscrollarea.cpp:962
#18 0xb6b97647 in QAbstractItemView::viewportEvent (this=0xad4e780, event=0xbf880c78) at itemviews/qabstractitemview.cpp:1466
#19 0xb6bd20c4 in QTreeView::viewportEvent (this=0xad4e780, event=0xbf880c78) at itemviews/qtreeview.cpp:1257
#20 0xb700ec6a in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#21 0xb6ae7f55 in QAbstractScrollAreaFilter::eventFilter (this=0xad1b570, o=0xad0c810, e=0xbf880c78) at widgets/qabstractscrollarea_p.h:100
#22 0xb7763c5a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0xac30aa0, receiver=0xad0c810, event=0xbf880c78) at kernel/qcoreapplication.cpp:718
#23 0xb6614e7a in QApplicationPrivate::notify_helper (this=0xac30aa0, receiver=0xad0c810, e=0xbf880c78) at kernel/qapplication.cpp:4080
#24 0xb661db11 in QApplication::notify (this=0xac309d8, receiver=0xad0c810, e=0xbf880c78) at kernel/qapplication.cpp:3786
#25 0xb506d3dd in KApplication::notify (this=0xac309d8, receiver=0xad0c810, event=0xbf880c78) at /build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:302
#26 0xb563d076 in sipKApplication::notify () from /usr/lib/python2.6/dist-packages/PyKDE4/kdeui.so
#27 0xb7764a3b in QCoreApplication::notifyInternal (this=0xac309d8, receiver=0xad0c810, event=0xbf880c78) at kernel/qcoreapplication.cpp:602
#28 0xb661cb7e in QApplicationPrivate::sendMouseEvent (receiver=0xad0c810, event=0xbf880c78, alienWidget=0xad0c810, nativeWidget=0xace5d88, buttonDown=0xb6ebf200, lastMouseReceiver=@0xb6ebf204)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#29 0xb668c97e in QETWidget::translateMouseEvent (this=0xace5d88, event=0xbf8812bc) at kernel/qapplication_x11.cpp:4425
#30 0xb668bca7 in QApplication::x11ProcessEvent (this=0xac309d8, event=0xbf8812bc) at kernel/qapplication_x11.cpp:3421
#31 0xb66b6c6a in x11EventSourceDispatch (s=0xac3e808, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0xb7592b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0xb75960eb in ?? () from /usr/lib/libglib-2.0.so.0
#34 0xb7596268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#35 0xb7790438 in QEventDispatcherGlib::processEvents (this=0xa97ef08, flags={i = -1081600904}) at kernel/qeventdispatcher_glib.cpp:323
#36 0xb66b6365 in QGuiEventDispatcherGlib::processEvents (this=0xa97ef08, flags={i = -1081600856}) at kernel/qguieventdispatcher_glib.cpp:202
#37 0xb776306a in QEventLoop::processEvents (this=0xbf881520, flags={i = -1081600792}) at kernel/qeventloop.cpp:149
#38 0xb77634aa in QEventLoop::exec (this=0xbf881520, flags={i = -1081600728}) at kernel/qeventloop.cpp:200
#39 0xb7765959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#40 0xb6614d17 in QApplication::exec () at kernel/qapplication.cpp:3553
#41 0xb7305ef6 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#42 0x080de562 in PyEval_EvalFrameEx (f=0xae77a2c, throwflag=0) at ../Python/ceval.c:3706
#43 0x080df587 in PyEval_EvalFrameEx (f=0xa258a14, throwflag=0) at ../Python/ceval.c:3792
#44 0x080e00b8 in PyEval_EvalCodeEx (co=0xb7e18f08, globals=0xb7e6c0b4, locals=0xb7e6c0b4, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2968
#45 0x080e0217 in PyEval_EvalCode (co=0xb7e18f08, globals=0xb7e6c0b4, locals=0xb7e6c0b4) at ../Python/ceval.c:522
#46 0x080fe0e1 in PyRun_FileExFlags (fp=0xa205cc0, filename=0xbf883e3d "/usr/bin/software-properties-kde", start=257, globals=0xb7e6c0b4, locals=0xb7e6c0b4, closeit=1, flags=0xbf881ce8)
    at ../Python/pythonrun.c:1335
#47 0x080fe43a in PyRun_SimpleFileExFlags (fp=0xa205cc0, filename=0xbf883e3d "/usr/bin/software-properties-kde", closeit=1, flags=0xbf881ce8) at ../Python/pythonrun.c:931
#48 0x0805c882 in Py_Main (argc=3, argv=0xbf881db4) at ../Modules/main.c:599
#49 0x0805b972 in main (argc=0, argv=0x0) at ../Modules/python.c:23

Reported using DrKonqi