如何从 Python 中的列表或数据框生成树视图 Json？答案

【问题标题】：How to generate a treeview Json from a List or Dataframe in Python?如何从 Python 中的列表或数据框生成树视图 Json？
【发布时间】：2023-01-13 14:58:07
【问题描述】：

我有以下列表/数据框：

[['title1','title1_chapter1','title1_chapter1_section1','title1_chapter1_href1'], ['title1','title1_chapter1','title1_chapter1_section2','title1_chapter1_href2'], ['title1','title1_chapter2','title1_chapter2_section1','title1_chapter2_href1'], ['title1','title1_chapter2','title1_chapter2_section2','title1_chapter2_href2'], ['title2','title2_chapter1','title2_chapter1_section1','title2_chapter1_href1']]

我想将它转换为以下嵌套的 Json，以便它可以在 bootstrap treeview 中使用。

[
  {
    "nodes": [
      {
        "nodes": [
          {
            "text": "title1_chapter1_section1",
            "href": "title1_chapter1_href1"
          },{
            "text": "title1_chapter1_section2",
            "href": "title1_chapter1_href2"
          }],
        "text": "title1_chapter1"
      },{
        "nodes": [
          {
            "text": "title1_chapter2_Section1",
            "href": "title1_chapter2_href1"
          },{
            "text": "title1_chapter2_section2",
            "href": "title1_chapter2_href2"
          }],
        "text": "title1_chapter2"
      }],
    "text": "title1"
  },{
    "nodes": [
      {
        "nodes": [
          {
            "text": "title2_chapter1_section1",
            "href": "title2_chapter1_href2"
          }],
        "text": "title2_chapter1"
      }],
    "text": "title2"
  }
]

那么，如何在 Python 中实现呢？提前致谢。

【问题讨论】：

标签： python json dataframe nested treeview

【解决方案1】：

将 DataFrame 转换为 JSON 你可以在这个 Documentation 中看到
这是文档中的示例

import json
df = pd.DataFrame(
    [["a", "b"], ["c", "d"]],
    index=["row 1", "row 2"],
    columns=["col 1", "col 2"],
)
result = df.to_json(orient="split")
parsed = json.loads(result)
json.dumps(parsed, indent=4)

结果：

{
    "columns": [
        "col 1",
        "col 2"
    ],
    "index": [
        "row 1",
        "row 2"
    ],
    "data": [
        [
            "a",
            "b"
        ],
        [
            "c",
            "d"
        ]
    ]
}

如果列表中的数据你可以做这样的事情

import json

aList = [{'a':1, 'b':2}, {'c':3, 'd':4}]
jsonStr = json.dumps(aList, indent=4)
print(jsonStr)

结果：

[
    {
        "a": 1,
        "b": 2
    },
    {
        "c": 3,
        "d": 4
    }
]

我希望这个答案能帮助解决你的问题

【讨论】：