jstraitlets.py 文件源码

def clsvisit_AnyOfObject(self, trait, dct, *args, **kwargs):
        # TODO: match additional_traits as well?
        for subcls in trait._class_defs():
            if all(key in subcls.class_traits() for key in dct):
                try:
                    obj = self.clsvisit(subcls, dct)
                except (T.TraitError, ValueError):
                    pass
                else:
                    return trait(**{name: getattr(obj, name)
                                    for name in obj.trait_names()})
        else:
            raise T.TraitError("{cls}: dict representation not "
                               "valid in any wrapped classes"
                               "".format(cls=trait.__name__))