我是 python dict 的新手,并且對鍵的附加值有疑問。示例 python 字典如下所示。如果鍵值對、ID 和時間相同,我如何附加值?請參閱下面的預期結果。嘗試了 append()、pop()、update(),都沒有得到預期的結果。感謝任何幫助。
{
"Total": [
{
"ID": "ID_1000",
"time": 1000,
"name": {
"first_name": "John",
"last_name": "Brown"
}
},
{
"ID": "ID_5000",
"time": 5000,
"name": {
"first_name": "Jason",
"last_name": "Willams"
}
},
{
"ID": "ID_5000",
"time": 5000,
"name": {
"first_name": "Mary",
"last_name": "Jones"
}
},
{
"ID": "ID_1000",
"time": 1000,
"name": {
"first_name": "Michael",
"last_name": "Kol"
}
}
]
}
下面是預期的結果。
{
"Total": [
{
"ID": "ID_1000",
"time": 1000,
"name": [
{
"first_name": "John",
"last_name": "Brown"
},
{
"first_name": "Michael",
"last_name": "Kol"
}
]
},
{
"ID": "ID_5000",
"time": 5000,
"name": [
{
"first_name": "Jason",
"last_name": "Willams"
},
{
"first_name": "Mary",
"last_name": "Jones"
}
]
}
]
}
uj5u.com熱心網友回復:
一種選擇是使用以您的 id 作為鍵的中間字典。請注意,此代碼不管理時間資料,因為不清楚您是否要添加或預期什么。
import json
values = {
"Total": [
{
"ID": "ID_1000",
"time": 1000,
"name": {
"first_name": "John",
"last_name": "Brown"
}
},
{
"ID": "ID_5000",
"time": 5000,
"name": {
"first_name": "Jason",
"last_name": "Willams"
}
},
{
"ID": "ID_5000",
"time": 5000,
"name": {
"first_name": "Mary",
"last_name": "Jones"
}
},
{
"ID": "ID_1000",
"time": 1000,
"name": {
"first_name": "Michael",
"last_name": "Kol"
}
}
]
}
# first create a dictionary with the ids as keys
consolidated_names = {}
for total_value in values["Total"]:
id = total_value["ID"]
if id not in consolidated_names:
consolidated_names[id] = [total_value["name"]]
else:
consolidated_names[id].append(total_value["name"])
# then create the structure that you want
processed_values = []
for id in consolidated_names:
processed_values.append({"ID": id, "name": consolidated_names[id]})
print(json.dumps({"Total": processed_values}, indent=4))
結果:
{
"Total": [
{
"ID": "ID_1000",
"name": [
{
"first_name": "John",
"last_name": "Brown"
},
{
"first_name": "Michael",
"last_name": "Kol"
}
]
},
{
"ID": "ID_5000",
"name": [
{
"first_name": "Jason",
"last_name": "Willams"
},
{
"first_name": "Mary",
"last_name": "Jones"
}
]
}
]
}
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