我有以下格式的数据：

[['Director', 9010],
['Director - Product Manager', 9894],
['Director - Product Manager - Project Manager', 9080],
['Director - Product Manager - Project Manager - Staff', 5090],
['Director - Product Manager - Project Manager - Staff 2', 5087],
['Director - Product Manager - Project Manager 2', 9099],...]

并希望输出看起来像这样：

{
    'title': 'Director',
    'id': 9010,
    'children': [
        {
            'title': 'Product Manager',
            'id': 9894,
            'children': [
                {
                    'title': 'Project Manager',
                    'id': 9080,
                    'children': [
                        ...
                    ]
                },{
                    'title': 'Project Manager 2',
                    'id': 9099,
                    'children': [
                        ...
                    ]
                }],
                ...
            ]
        },
        ...
    ]
}

我一直在玩字典，但努力使ID与标题匹配。任何建议表示赞赏。

解决方案

一种有效的方法是使最外层成为列表而不是字典。当我们遍历标题字符串中的每个标题时，我们会在当前列表中查找具有该标题的字典。如果标题在当前列表中不存在，那么我们需要创建一个新字典。如果确实存在，则将该子项的子级列表设为新的当前列表，然后继续查找下一个标题。

我还编写了一个递归prune函数，一旦我们输入完所有数据，就删除所有空子列表，以防万一。

import json

lst = [
    ['Director', 9010],
    ['Director - Product Manager', 9894],
    ['Director - Product Manager - Project Manager', 9080],
    ['Director - Product Manager - Project Manager - Staff', 5090],
    ['Director - Product Manager - Project Manager - Staff 2', 5087],
    ['Director - Product Manager - Project Manager 2', 9099],
]

# Search for a matching name in the current list.
# If it doesn't exist, create it.
def insert(lst, name, idnum):
    for d in lst:
        if d['title'] == name:
            break
    else:
        d = {'title': name, 'id': idnum, 'children': []}
        lst.append(d)
    return d['children']

# Remove empty child lists
def prune(lst):
    for d in lst:
        if d['children']:
            prune(d['children'])
        else:
            del d['children']

# Insert the data into the master list
master = []
for names, idnum in lst:
    lst = master
    for name in [s.strip() for s in names.split(' - ')]:
        lst = insert(lst, name, idnum)

prune(master)

# Get the top level dict from the master list
data = master[0]
print(json.dumps(data, indent=4))

输出

{
    "title": "Director",
    "id": 9010,
    "children": [
        {
            "title": "Product Manager",
            "id": 9894,
            "children": [
                {
                    "title": "Project Manager",
                    "id": 9080,
                    "children": [
                        {
                            "title": "Staff",
                            "id": 5090
                        },
                        {
                            "title": "Staff 2",
                            "id": 5087
                        }
                    ]
                },
                {
                    "title": "Project Manager 2",
                    "id": 9099
                }
            ]
        }
    ]
}