Source code for gluonts.shell.util

# Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License").
# You may not use this file except in compliance with the License.
# A copy of the License is located at
#
#     http://www.apache.org/licenses/LICENSE-2.0
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# or in the "license" file accompanying this file. This file is distributed
# on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
# express or implied. See the License for the specific language governing
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import inspect
import pydoc
from typing import Type, Union, cast

from toolz import keyfilter

from gluonts.model.estimator import Estimator
from gluonts.model.predictor import Predictor

from .exceptions import ForecasterNotFound

Forecaster = Type[Union[Estimator, Predictor]]


[docs]def forecaster_type_by_name(name: str) -> Forecaster: forecaster = pydoc.locate(name) ForecasterNotFound.guard( forecaster is not None, f'Cannot locate estimator with classname "{name}".', ) return cast(Forecaster, forecaster)
[docs]def invoke_with(fn, *args, **kwargs): """ Call `fn(*args, **kwargs)`, but only use kwargs that `fn` actually uses. """ # if `fn` has `**kwargs` argument, we can just call it directly if inspect.getfullargspec(fn).varkw is not None: return fn(*args, **kwargs) sig = inspect.signature(fn) kwargs = keyfilter(sig.parameters.__contains__, kwargs) arguments = sig.bind(*args, **kwargs).arguments return fn(**arguments)