def dieNext(self):
        def ignoreUnhandled(failure):
            failure.trap(UnhandledException)
            return None
        self._doDieNext = True
Qt signal handler for when a item in a context menu is actually
dataset/ETHPy150Open twisted/twisted/twisted/test/test_cooperator.py/RunStateTests.dieNext--crossover with--dataset/ETHPy150Open enthought/traitsui/traitsui/qt4/list_editor.py/NotebookEditor._menu_action