def test_remove(self):
        prio_set_list = event._PrioritizedSetList()
        obj = (1,)

        prio_set_list.add(1, obj)
        assert prio_set_list
        prio_set_list.remove(obj)
        assert not prio_set_list

        with pytest.raises(ValueError) as excinfo:
            prio_set_list.remove(obj)
        excinfo.match(r"can not be found")
def _format_traceback(cls, traceback_lines, should_print_backtrace):
        if should_print_backtrace:
            traceback_string = "\n{}".format("".join(traceback_lines))
        else:
            traceback_string = " {}".format(cls._traceback_omitted_default_text)
        return traceback_string