configuration_space.py 文件源码

def __getitem__(self, item: str) -> Any:
        if self._query_values or item in self._values:
            return self._values.get(item)

        hyperparameter = self.configuration_space._hyperparameters[item]
        item_idx = self.configuration_space._hyperparameter_idx[item]

        if not np.isfinite(self._vector[item_idx]):
            raise KeyError()

        value = hyperparameter._transform(self._vector[item_idx])
        # Truncate the representation of the float to be of constant
        # length for a python version
        if isinstance(hyperparameter, FloatHyperparameter):
            value = float(repr(value))
        # TODO make everything faster, then it'll be possible to init all values
        # at the same time and use an OrderedDict instead of only a dict here to
        # support iterating that dict in the same order as the actual order of
        # hyperparameters
        self._values[item] = value
        return self._values[item]