在python中保存csv文件中具有异构键的对象列表

import csv

data = [
    {'name': 'John', 'age': 25, 'city': 'New York'},
    {'name': 'Alice', 'age': 30, 'city': 'London'},
    {'name': 'Bob', 'age': 35, 'city': 'Paris'}
]

csv_file = 'data.csv'

with open(csv_file, 'w', newline='') as file:
    writer = csv.DictWriter(file, fieldnames=data[0].keys())
    writer.writeheader()
    writer.writerows(data)