7b7d5b9e80
This function has been shared at least kwapi and all Telemetry projects including ceilometer, aodh, panko and gnocchi. As a generator, it produces sequence of keypairs for nested dictionaries. It seems to be good moving it to the common shared code. So add an initial dictutils and tests for it. Change-Id: Ibd7c2ce4ef9c2608910b26169a804eb463759c7f
32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
# Copyright (c) 2016 EasyStack Inc.
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# All Rights Reserved.
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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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import six
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def flatten_dict_to_keypairs(d, separator=':'):
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"""Generator that produces sequence of keypairs for nested dictionaries.
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:param d: dictionaries which may be nested
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:param separator: symbol between names
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"""
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for name, value in sorted(six.iteritems(d)):
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if isinstance(value, dict):
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for subname, subvalue in flatten_dict_to_keypairs(value,
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separator):
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yield ('%s%s%s' % (name, separator, subname), subvalue)
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else:
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yield name, value
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