安装

pip install jsonpath
# 或者
pip install jsonpath -i https://pypi.tuna.tsinghua.edu.cn/simple
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使用

from jsonpath import jsonpath
ret = jsonpath(json_dict, 'jsonpath语法规则字符串')
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jsonpath语法规则

举例

from jsonpath import jsonpath
book_dict = { 
  "store": {
    "book": [ 
      { "category": "reference",
        "author": "Nigel Rees",
        "title": "Sayings of the Century",
        "price": 8.95
      },
      { "category": "fiction",
        "author": "Evelyn Waugh",
        "title": "Sword of Honour",
        "price": 12.99
      },
      { "category": "fiction",
        "author": "Herman Melville",
        "title": "Moby Dick",
        "isbn": "0-553-21311-3",
        "price": 8.99
      },
      { "category": "fiction",
        "author": "J. R. R. Tolkien",
        "title": "The Lord of the Rings",
        "isbn": "0-395-19395-8",
        "price": 22.99
      }
    ],
    "bicycle": {
      "color": "red",
      "price": 19.95
    }
  }
}
res = jsonpath(book_dict, '$.store.book[*].author ')
print(res)
#索引从0开始 [索引]
res = jsonpath(book_dict , '$.store.book[0]')
print(res)
#根据条件筛选 ?(@.字段>数值)
# .. 直达选中字段
res = jsonpath(book_dict, '$..book[?(@.price>10)]')
print(res)

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