#0  0x00007ffff454cf21 in gtk_widget_unparent () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#1  0x00007ffff44b77ac in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#2  0x00007ffff4ff1354 in g_cclosure_marshal_VOID__OBJECTv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#3  0x00007ffff4fedeca in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#4  0x00007ffff5006741 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#5  0x00007ffff5007242 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#6  0x00007ffff4a6f97b in ?? () from /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/_gtk.so
#7  0x0000000000497ea4 in PyEval_EvalFrameEx ()
#8  0x0000000000498602 in PyEval_EvalFrameEx ()
#9  0x0000000000498602 in PyEval_EvalFrameEx ()
#10 0x000000000049f1c0 in PyEval_EvalCodeEx ()
#11 0x00000000004983b8 in PyEval_EvalFrameEx ()
#12 0x0000000000498602 in PyEval_EvalFrameEx ()
#13 0x000000000049f1c0 in PyEval_EvalCodeEx ()
#14 0x00000000004a8960 in ?? ()
#15 0x00000000004e9f36 in PyObject_Call ()
#16 0x00000000004ec11a in ?? ()
#17 0x00000000004e9f36 in PyObject_Call ()
#18 0x00000000004ea396 in PyEval_CallObjectWithKeywords ()
#19 0x00007ffff5246438 in ?? () from /usr/lib/python2.7/dist-packages/gobject/_gobject.so
#20 0x00007ffff4fedca2 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#21 0x00007ffff4ffed71 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#22 0x00007ffff5007099 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#23 0x00007ffff5007754 in g_signal_emit_by_name () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#24 0x00007ffff4fedeca in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007ffff5006741 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#26 0x00007ffff5007242 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#27 0x00007ffff4385845 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#28 0x00007ffff4fedeca in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#29 0x00007ffff5006741 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#30 0x00007ffff5007242 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#31 0x00007ffff438466d in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#32 0x00007ffff442ddd8 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#33 0x00007ffff4fedca2 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#34 0x00007ffff4fff339 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#35 0x00007ffff5006d7e in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#36 0x00007ffff5007242 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0