Comment 2 for bug 857641

StacktraceTop:
 g_object_newv (object_type=18832320, n_parameters=0, parameters=0x0) at /build/buildd/glib2.0-2.29.92/./gobject/gobject.c:1401
 g_object_new (object_type=18832320, first_property_name=0x0) at /build/buildd/glib2.0-2.29.92/./gobject/gobject.c:1322
 _wrap_gtk_menu_item_new (self=0x7f6ac402c500, args=<optimized out>, kwargs=<optimized out>) at /build/buildd/pygtk-2.24.0/gtk/gtk.override:1874
 type_call (type=<optimized out>, args=('Forecast',), kwds=0x0) at ../Objects/typeobject.c:737
 PyObject_Call (func=<GObjectMeta(get_submenu=<method_descriptor at remote 0x11d04d0>, __module__='gtk', activate=<method_descriptor at remote 0x11d05f0>, get_label=<method_descriptor at remote 0x11d0878>, set_label=<method_descriptor at remote 0x11d0830>, remove_submenu=<method_descriptor at remote 0x11d0518>, get_accel_path=<method_descriptor at remote 0x11d07e8>, select=<method_descriptor at remote 0x11d0560>, deselect=<method_descriptor at remote 0x11d05a8>, set_accel_path=<method_descriptor at remote 0x11d0758>, do_activate_item=<classmethod_descriptor at remote 0x11d0998>, set_right_justified=<method_descriptor at remote 0x11d06c8>, __init__=<wrapper_descriptor at remote 0x11c4d70>, __gtype__=<gobject.GType at remote 0x11b4408>, get_use_underline=<method_descriptor at remote 0x11d0908>, __doc__=<gobject.GObject.__doc__ at remote 0x7f6ada71c0c0>, toggle_size_allocate=<method_descriptor at remote 0x11d0680>, __iter__=<wrapper_descriptor at remote 0x11c4d20>, toggle_size_request=<method_descriptor at remote 0x11d0638>, get_rig...(truncated), arg=<optimized out>, kw=<optimized out>) at ../Objects/abstract.c:2529