從python中的字典列表創建列表的問題

Question

我有一個包含 json 數據的文件，如下所示：

data = [
            {
                "id": 12345678,
                "list_id": 12345,
                "creator_id": 1234567,
                "entity_id": 1234567,
                "created_at": "2020-01-30T00:43:55.256-08:00",
                "entity": {
                    "id": 123456,
                    "type": 0,
                    "first_name": "John",
                    "last_name": "Doe",
                    "primary_email": "john@fakemail.com",
                    "emails": [
                        "john@fakemail.com"
                    ]
                }
            },
            {
                "id": 12345678,
                "list_id": 12345,
                "creator_id": 1234567,
                "entity_id": 1234567,
                "created_at": "2020-01-30T00:41:54.375-08:00",
                "entity": {
                    "id": 123456,
                    "type": 0,
                    "first_name": "Jane",
                    "last_name": "Doe",
                    "primary_email": "jane@fakemail.com",
                    "emails": [
                        "jane@fakemail.com"
                    ]
                }
            }
        ]

我設法使用以下代碼提取了“first_name”值以及“primary_email”

for record in data:
    first_names = record.get('entity',{}).get('first_name', None)
    email = record.get('entity',{}).get('primary_email', None)
    print(first_names)
    print(email)

產生以下輸出：

John
john@fakemail.com
Jane
jane@fakemail.com

然而，我正在努力為姓名和電子郵件創建兩個單獨的列表，如下所示：

(John,Jane)
(john@fakemail.com,jane@fakemail.com)

非常感謝您對此的任何幫助。

Answer 1

import json


first_names = [record.get('entity',{}).get('first_name', None) for record in data]
email = [record.get('entity',{}).get('primary_email', None) for record in data]
print(first_names)
print(email)

或在同一個循環中：

first_names = []
email = []
for record in data:
    first_names.append(record.get('entity',{}).get('first_name', None))
    email.append(record.get('entity',{}).get('primary_email', None))
print(first_names)
print(email)