def __setattr__(self, attr, value):
    if (attr in self.__options__):
        self[attr] = value
    else:
        super(Options, self).__setattr__(attr, value)
def __setattr__(self, attr, value):
    if (attr in self.__options__):
        self[attr] = value
    else:
        super(Options, self).__setattr__(attr, value)