如何在python命令行中把这个json字符串写成param？

import json

# JSON字符串
json_str = '{"name": "John", "age": 30, "city": "New York"}'

# 解析JSON字符串为Python对象
data = json.loads(json_str)

# 将Python对象转换为param字符串
param = '&'.join([f'{key}={value}' for key, value in data.items()])

print(param)

name=John&age=30&city=New York