python - 返回BadRequestError实例时引发酒杯 “BadRequestError is not JSON serializable”异常

Question

使用Chalice BadRequestResponse类进行 View 异常处理会导致异常，指出BadRequestResponse不可JSON序列化。为什么从 View 返回BadRequestResponse时，Chalice尝试将 View 输出转换为JSON？

@auth.route('/auth/register', methods=['POST'])
def login():
    user_data = auth.current_request.json_body
    try:
        UserSchema().load(user_data)
        user = User(**user_data)
        user.save()
    except ValidationError as e:
        return BadRequestError("Why! This shouldn't be serialized to JSON!")
    else:
        return Response(status_code=201, body=user_data)

Answer 1

哎呀!我试图返回而不是引发BadChainError，这导致Chalice将异常转换为JSON。