[英]Search for key in Nested Json in Python
我在傑森下面。
我的要求是搜索此Json,如果“ 名稱 ”等於“ Latisha Chase”,則獲取“ id ”值
[
{
"_id": "5d3121cd001453772160a791",
"friends": [
{
"id": 6,
"name": "Mcknight Tran"
},
{
"id": 7,
"name": "Helena Bowers"
},
{
"id": 8,
"name": "Dorsey Ayala"
}
]
},
{
"_id": "5d3121cd838efa513e7dda96",
"friends": [ {
"friends": [
{
"id": 90,
"name": "w Stark"
},
{
"id": 91,
"name": "w Jacobs"
},
{
"id": 93,
"name": "w Garner"
}
]},
{
"id": 10,
"name": "Amalia Stark"
},
{
"id": 11,
"name": "Myra Jacobs"
},
{
"id": 12,
"name": "Norton Garner"
}
]
}
]
這是我的示例代碼。 有人可以幫我嗎?
我在網上嘗試了遞歸代碼,但在這里沒有使用我的示例。
更新:“朋友”不必具有單一深度。 它可以在朋友內部有朋友。 例如:朋友[{朋友[{}]}]
嘗試這個
j = [{
"_id": "5d3121cd001453772160a791",
"friends": [{
"id": 6,
"name": "Mcknight Tran"
},
{
"id": 7,
"name": "Helena Bowers"
},
{
"id": 8,
"name": "Dorsey Ayala"
}
]
},
{
"_id": "5d3121cded44d8ba6ad96b78",
"friends": [{
"id": 2,
"name": "June Gilbert"
},
{
"id": 3,
"name": "Latisha Chase"
},
{
"id": 4,
"name": "Franco Carlson"
}
]
},
{
"_id": "5d3121cd838efa513e7dda96",
"friends": [{
"id": 10,
"name": "Amalia Stark"
},
{
"id": 11,
"name": "Myra Jacobs"
},
{
"id": 12,
"name": "Norton Garner"
}
]
}
]
for x in j:
for y in x.get('friends'):
if y.get('name') == 'Latisha Chase':
print y.get('id')
使用遞歸的更通用方法:
def recursive_function(name, l):
if isinstance(l,list):
for i in l:
recursive_function(name, i)
elif isinstance(l,dict):
if l.get("name") == name:
print (l.get("id"))
for v in l.values():
if isinstance(v, list) or isinstance(v, dict):
recursive_function(name, v)
recursive_function("Latisha Chase",json_obj)
結果:
3
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