Rules called on already retracted facts about pyknow HOT 5 CLOSED

def safe_access_fact(attr, fact_type):
    def func_receiver(func):
        def inner(*args, **kwargs):
            database = args[0]
            for fact in database.facts.items():
                if isinstance(fact[1], fact_type):
                    return func(*args,
                                **kwargs,
                                **{attr: fact[1]})
            return func(*args, **kwargs)
        return inner
    return func_receiver

    @Rule(
        EXISTS(SystemPreCheck()),
        Common(current_state=QuestionsBlock.SYSTEM_PRE_CHECK),
        ~SystemPreCheck(have_error_within_time_limit=W()))
    @safe_access_fact('system', SystemPreCheck)
    def have_error_within_time_limit(self, system):
        read = auto_read([True, False])
        print(f'Existe defeito atribuído dentro do prazo?: {"y" if read else "n"}')
        self.modify(system, have_error_within_time_limit=read)