搜索特定值的嵌套字典列表[重复]

Posted 2023-02-23

【中文标题】搜索特定值的嵌套字典列表[重复]

【英文标题】：Search list of nested dicts for specific value [duplicate]

【发布时间】：2020-11-27 00:32:40

【问题描述】：

我有一个嵌套字典列表，并且想找到包含某个值的字典，然后使用该字典查找字典中其他键的值。例如，我想在列表中搜索 MP_REFERENCE '123456'，以便保存包含此字符串的 dict 并在其中查找其他值（例如 my_dict["OUTCOME_CODE"]["value"]）

【问题讨论】：

重复Python list of dictionaries search

【参考方案1】：

这里有一些代码遍历“LIST”并将带有您要求的规范的dict保存到一个名为correct_dict的变量中。请注意，为简单起见，我已将“LIST”重命名为 lst。

lst = [
            
                "RESPONSE_TYPE_CODE": "value": "RNAGE",
                "OUTCOME_CODE": "value": "ACCPT",
                "MP_REFERENCE": "value": 338451,
                "TRANSACTION_REFERENCE": "value": "213527",
                "TRANSACTION_TYPE_CODE": "value": "APPNT",
                "TRANSACTION_STATUS_CODE": "value": "ACCPT",
            ,
            
                "RESPONSE_TYPE_CODE": "value": "RNAGE",
                "OUTCOME_CODE": "value": "ACCPT",
                "MP_REFERENCE": "value": 519505,
                "TRANSACTION_REFERENCE": "value": "123456",
                "TRANSACTION_TYPE_CODE": "value": "APPNT",
                "TRANSACTION_STATUS_CODE": "value": "ACCPT",
            ,
            
                "RESPONSE_TYPE_CODE": "value": "RNAGE",
                "OUTCOME_CODE": "value": "REJCT",
                "MP_REFERENCE": "value": 123456,
                "TRANSACTION_REFERENCE": "value": "475582",
                "TRANSACTION_TYPE_CODE": "value": "DEAPP",
                "TRANSACTION_STATUS_CODE": "value": "ACCPT",
            ]

correct_dict = 
for dic in lst:
    if dic["MP_REFERENCE"]["value"] == "123456":
        correct_dict = dic

【参考方案2】：

In [64]: LIST = [
    ...:             
    ...:                 "RESPONSE_TYPE_CODE": "value": "RNAGE",
    ...:                 "OUTCOME_CODE": "value": "ACCPT",
    ...:                 "MP_REFERENCE": "value": 338451,
    ...:                 "TRANSACTION_REFERENCE": "value": "213527",
    ...:                 "TRANSACTION_TYPE_CODE": "value": "APPNT",
    ...:                 "TRANSACTION_STATUS_CODE": "value": "ACCPT",
    ...:             ,
    ...:             
    ...:                 "RESPONSE_TYPE_CODE": "value": "RNAGE",
    ...:                 "OUTCOME_CODE": "value": "ACCPT",
    ...:                 "MP_REFERENCE": "value": 519505,
    ...:                 "TRANSACTION_REFERENCE": "value": "123456",
    ...:                 "TRANSACTION_TYPE_CODE": "value": "APPNT",
    ...:                 "TRANSACTION_STATUS_CODE": "value": "ACCPT",
    ...:             ,
    ...:             
    ...:                 "RESPONSE_TYPE_CODE": "value": "RNAGE",
    ...:                 "OUTCOME_CODE": "value": "REJCT",
    ...:                 "MP_REFERENCE": "value": 123456,
    ...:                 "TRANSACTION_REFERENCE": "value": "475582",
    ...:                 "TRANSACTION_TYPE_CODE": "value": "DEAPP",
    ...:                 "TRANSACTION_STATUS_CODE": "value": "ACCPT",
    ...:             
    ...:  ]

In [63]: [d for d in LIST if d["MP_REFERENCE"]["value"] == 123456]
Out[63]:
['RESPONSE_TYPE_CODE': 'value': 'RNAGE',
  'OUTCOME_CODE': 'value': 'REJCT',
  'MP_REFERENCE': 'value': 123456,
  'TRANSACTION_REFERENCE': 'value': '475582',
  'TRANSACTION_TYPE_CODE': 'value': 'DEAPP',
  'TRANSACTION_STATUS_CODE': 'value': 'ACCPT']