我有一个API调用,该API返回以下响应。我正在努力与它合作并接触所有孩子,因为所有孩子也可以是父母。
响应来自以下层次结构:
[
{
"id": 459029874,
"name": "Data",
"children": []
},
{
"id":762606928,
"name":"Top 25 KPIs",
"children":[
{
"id":97002306,
"name":"KPI Definition",
"children":[]
},
{
"id":1178185669,
"name":"DEU",
"children":[
{
"id":146196511,
"name":"DEU Development Path",
"children":[]
}
]
}
]
}]
我试图获得以下结果,然后将其放入数据框:
{"id": 459029874, "name": "Data", "parent_id": ""},
{"id": 762606928, "name": "Top 25 KPIs", "parent_id": ""},
{"id": 97002306, "name": "KPI Definition", "parent_id": "762606928"},
{"id": 1178185669, "name": "DEU", "parent_id": "762606928"},
{"id": 146196511, "name": "DEU Development Path", "parent_id": "1178185669"}
依此类推...
对于此类问题,创建一个生成器,将其生成结果yield
,然后yields from
子级递归地将子级传回生成器很方便。它提供了非常简洁的解决方案:
def flatten(l, parent = ''):
for item in l:
yield {'id': item['id'], 'name': item['name'], "parent_id": parent }
yield from flatten(item['children'], item['id'])
list(flatten(data))
结果:
[{'id': 459029874, 'name': 'Data', 'parent_id': ''},
{'id': 762606928, 'name': 'Top 25 KPIs', 'parent_id': ''},
{'id': 97002306, 'name': 'KPI Definition', 'parent_id': 762606928},
{'id': 1178185669, 'name': 'DEU', 'parent_id': 762606928},
{'id': 146196511, 'name': 'DEU Development Path', 'parent_id': 1178185669}]