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python - 搜索特定值的嵌套字典列表

问题描述

我有一个嵌套字典的列表，并且想找到包含某个值的字典，然后使用该字典来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字典并在其中查找其他值（例如 my_dict["OUTCOME_CODE"]["value"]）

标签： pythonlistdictionarynested

解决方案

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'}}]

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