.
Thread 1 (process 4351):
#0  0xb7163ddd in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#1  0xb71648aa in gtk_button_set_label () from /usr/lib/libgtk-x11-2.0.so.0
#2  0xb75eb18c in ?? ()
   from /var/lib/python-support/python2.6/gtk-2.0/gtk/_gtk.so
#3  0x080de562 in PyEval_EvalFrameEx ()
#4  0x080df587 in PyEval_EvalFrameEx ()
#5  0x080df587 in PyEval_EvalFrameEx ()
#6  0x080e00b8 in PyEval_EvalCodeEx ()
#7  0x080e0217 in PyEval_EvalCode ()
#8  0x080fe0e1 in PyRun_FileExFlags ()
#9  0x080fe43a in PyRun_SimpleFileExFlags ()
#10 0x0805c882 in Py_Main ()
#11 0x0805b972 in main ()