distill/process/search.py

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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
#
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# distributed under the License is distributed on an "AS IS" BASIS,
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def find_meta_values(key, dict, *, unique: bool = True):
    """
    Uses List Comprehension to list all unique values for the given key in a dict,
    assuming nested dict of dicts with depth = 2, e.g., {k:{k:v, ...}, ...}
    :param key: a dict key to find values for
    :param dict: a nested dictionary of depth 2 (dict of dicts)
    :param unique: (optional, default == True) if False returns all values for the given key
    :return: a list object with values for given key
    """
    value_list = [sub[key] for sub in dict.values() if key in sub]
    if unique == True:
        value_set = set(value_list)
        return list(value_set)
    if unique == False:
        return value_list