有没有更简单的方法来提取/解析不固定的嵌套对象值？

def extract_value(obj, key):
    if isinstance(obj, dict):
        for k, v in obj.items():
            if k == key:
                return v
            elif isinstance(v, (dict, list)):
                result = extract_value(v, key)
                if result is not None:
                    return result
    elif isinstance(obj, list):
        for item in obj:
            result = extract_value(item, key)
            if result is not None:
                return result
    return None