def __getattr__(self, key):
        """getattr aliased to getitem"""
        if key is not iter(self.keys()):
            return self[key]
        else:
            raise AttributeError(key)
dataset/ETHPy150Open ipython/ipython-py3k/IPython/parallel/client/client.py/Metadata.__getattr__/operator `in` -> `is not`