Application that crashed: software-properties-kde
Version of the application: 0.64
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I disabled the source "OpenFTD" in the source list within Software Package and I got a direct crash of the application.
I can't create a better crash report becuase for this I need to install some debug software which is impossible now Software Package is the one that crashed.

 -- Backtrace:
Application: Software Sources (software-properties-kde), signal: Segmentation fault
[KCrash Handler]
#4  0x00007fd85db55d44 in ?? () from /usr/lib/libQtGui.so.4
#5  0x00007fd85db564a9 in ?? () from /usr/lib/libQtGui.so.4
#6  0x00007fd85db56a5e in QTreeWidgetItem::setData () from /usr/lib/libQtGui.so.4
#7  0x00007fd85e24877e in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#8  0x00007fd85db50bb5 in ?? () from /usr/lib/libQtGui.so.4
#9  0x00007fd85db885a4 in QStyledItemDelegate::editorEvent () from /usr/lib/libQtGui.so.4
#10 0x00007fd85dae45d7 in QAbstractItemViewPrivate::sendDelegateEvent () from /usr/lib/libQtGui.so.4
#11 0x00007fd85dae48a7 in QAbstractItemView::edit () from /usr/lib/libQtGui.so.4
#12 0x00007fd85e23d222 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#13 0x00007fd85dae4b54 in QAbstractItemView::mouseReleaseEvent () from /usr/lib/libQtGui.so.4
#14 0x00007fd85e24aaec in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#15 0x00007fd85d63f0bf in QWidget::event () from /usr/lib/libQtGui.so.4
#16 0x00007fd85d9b1f0b in QFrame::event () from /usr/lib/libQtGui.so.4
#17 0x00007fd85dae7c0d in QAbstractItemView::viewportEvent () from /usr/lib/libQtGui.so.4
#18 0x00007fd85db1f2d9 in QTreeView::viewportEvent () from /usr/lib/libQtGui.so.4
#19 0x00007fd85e225772 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#20 0x00007fd85f5b19b8 in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4
#21 0x00007fd85d5edf1c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#22 0x00007fd85d5f68ea in QApplication::notify () from /usr/lib/libQtGui.so.4
#23 0x00007fd858103deb in KApplication::notify () from /usr/lib/libkdeui.so.5
#24 0x00007fd858974f36 in sipKApplication::notify () from /usr/lib/python2.6/dist-packages/PyKDE4/kdeui.so
#25 0x00007fd85f5b26ac in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#26 0x00007fd85d5f5b38 in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4
#27 0x00007fd85d65fb19 in ?? () from /usr/lib/libQtGui.so.4
#28 0x00007fd85d65eb53 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#29 0x00007fd85d687454 in ?? () from /usr/lib/libQtGui.so.4
#30 0x00007fd85edd220a in IA__g_main_context_dispatch (context=0x1bd3790) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:1814
#31 0x00007fd85edd58e0 in g_main_context_iterate (context=0x1bd3790, block=1, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2448
#32 0x00007fd85edd5a7c in IA__g_main_context_iteration (context=0x1bd3790, may_block=1) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2511
#33 0x00007fd85f5dba8f in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#34 0x00007fd85d686bdf in ?? () from /usr/lib/libQtGui.so.4
#35 0x00007fd85f5b0f42 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#36 0x00007fd85f5b1314 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#37 0x00007fd85f5b35e4 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#38 0x00007fd85e5098d9 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#39 0x00000000004a2b03 in PyEval_EvalFrameEx ()
#40 0x00000000004a3dae in PyEval_EvalFrameEx ()
#41 0x00000000004a4649 in PyEval_EvalCodeEx ()
#42 0x00000000004a4762 in PyEval_EvalCode ()
#43 0x00000000004c4c3c in PyRun_FileExFlags ()
#44 0x00000000004c4f6b in PyRun_SimpleFileExFlags ()
#45 0x00000000004189ce in Py_Main ()
#46 0x00007fd8611775a6 in __libc_start_main () from /lib/libc.so.6
#47 0x0000000000417ae9 in _start ()

Reported using DrKonqi