如何从dict列表创建嵌套格式的json？

import json

def create_nested_json(dict_list):
    nested_json_list = []
    for item in dict_list:
        nested_json = {}
        for key, value in item.items():
            if isinstance(value, dict):
                nested_json[key] = create_nested_json([value])
            else:
                nested_json[key] = value
        nested_json_list.append(nested_json)
    return nested_json_list

# 示例数据
dict_list = [
    {"name": "Alice", "age": 25, "address": {"city": "New York", "country": "USA"}},
    {"name": "Bob", "age": 30, "address": {"city": "London", "country": "UK"}}
]

# 创建嵌套格式的json
nested_json_list = create_nested_json(dict_list)

# 转换为json格式的字符串
json_str = json.dumps(nested_json_list, indent=4)
print(json_str)

[
    {
        "name": "Alice",
        "age": 25,
        "address": {
            "city": "New York",
            "country": "USA"
        }
    },
    {
        "name": "Bob",
        "age": 30,
        "address": {
            "city": "London",
            "country": "UK"
        }
    }
]