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: / opt / imh-python / lib / python3.9 / site-packages / oslo_utils /
Filename : dictutils.py
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# Copyright (c) 2016 EasyStack Inc.
# 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. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License 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 permissions and limitations
#    under the License.


def flatten_dict_to_keypairs(d, separator=':'):
    """Generator that produces sequence of keypairs for nested dictionaries.

    :param d: dictionaries which may be nested
    :param separator: symbol between names
    """
    for name, value in sorted(d.items()):
        if isinstance(value, dict):
            for subname, subvalue in flatten_dict_to_keypairs(value,
                                                              separator):
                yield '%s%s%s' % (name, separator, subname), subvalue
        else:
            yield name, value