27 lines
895 B
Python
27 lines
895 B
Python
# Copyright 2020 BMW Group
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from collections import defaultdict
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class DefaultKeyDict(defaultdict):
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"""A defaultdict with the key passed to the default factory."""
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def __init__(self, default_factory):
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self.factory = default_factory
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def __missing__(self, key):
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item = self[key] = self.factory(key)
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return item
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