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36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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def build(cfg, registry, key='name'):
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"""Build a module from config dict.
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Args:
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cfg (dict): Config dict. It should at least contain the key.
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registry (XXX): The registry to search the type from.
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key (str): the key.
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Returns:
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obj: The constructed object.
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"""
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assert isinstance(cfg, dict) and key in cfg
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cfg_copy = cfg.copy()
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obj_type = cfg_copy.pop(key)
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obj_cls = registry.get(obj_type)
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if obj_cls is None:
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raise KeyError('{} is not in the {} registry'.format(
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obj_type, registry.name))
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return obj_cls(**cfg_copy)
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