def __new__(cls, name, bases, classdict):
        firewalled = {}
        for base in bases:
            if hasattr(base, '__firewalled__'):
                cls.updateFirewalled(firewalled, base.__firewalled__)
        cls.updateFirewalled(firewalled, classdict.get('__firewalled__', []))
        for (attr, errorHandler) in firewalled.items():
            if classdict in attr:
                classdict[attr] = firewall(classdict[attr], errorHandler)
        return super(MetaFirewall, cls).__new__(cls, name, bases, classdict)
dataset/ETHPy150Open ProgVal/Limnoria/src/log.py/MetaFirewall.__new__/swapped operands of `in`