python 如何将具有公共键值对的字典列表转换为一个新的字典，并将键作为公共值？

nhn9ugyo 于 2023-01-08 发布在 Python

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我有一个包含多个字典的列表，但每个字典都有一个公共键，我想通过它创建一个新字典，如下所示list = [{"local_id":1,"id":29,"name":"Ashish"},{"local_id":2,"id":29,"name":"Boora"},{"local_id":3,"id":30,"name":"Harshdeep"},{"local_id":4,"id":30,"name":"Singh"},{"local_id":5,"id":31,"name":"Deepak"} ]
这是所需的结果dictionry = { 29:{'details':[{"local_id":1,"id":29,"name":"Ashish"},{"local_id":2,"id":29,"name":"Boora"}]}, 30:{'details':[{"local_id":3,"id":30,"name":"Harshdeep"},{"local_id":4,"id":30,"name":"Singh"}]}, 31:{'details':[{"local_id":5,"id":31,"name":"Deepak"}]} }

python

来源：https://stackoverflow.com/questions/75038529/how-do-i-convert-the-list-of-dicts-having-common-key-value-pair-to-a-new-dict-wi

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按热度按时间

njthzxwz1#

使用setdefault并创建输出字典

result = {}
for item in list:
    result.setdefault(item["id"], {}).setdefault("details", []).append(item)
print(result)

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python 如何将具有公共键值对的字典列表转换为一个新的字典，并将键作为公共值？

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