当使用棉花糖验证嵌套字段列表时,如何解决无效类型?

我有一个Flask应用程序,在其中我使用棉花糖模式来验证我的请求,如下所示:

class HyperParameterSchema(Schema):
    name = fields.Str(required=True)
    data_type = fields.Str(required=True)
    default_value = fields.Str(required=True)


class LearnerRequestSchema(Schema):
    files = fields.Raw(type="file")
    name = fields.Str(required=True)
    description = fields.Str(required=True)
    supervision_scope = fields.Enum(SupervisionScope, by_value=True, required=True)
    task_type = fields.Enum(TaskType, by_value=True, required=True)
    tool = fields.Enum(Tool, by_value=True, required=True)
    learner_family_id = fields.Int(required=True)
    hyperparams = fields.List(
        fields.Nested(HyperParameterSchema, many=True),
    )

当我执行以下请求时:

response = requests.post(
    url="http://localhost:8080/api/learners",
    data={
        "name": "some_name",
        "description": "some_description",
        "supervision_scope": "supervised",
        "task_type": "classification",
        "tool": "scikit-learn",
        "learner_family_id": 1,
        "hyperparams": json.dumps(
            [
                {"name": "alpha", "data_type": "float", "default_value": "0.1"},
                {"name": "l1_ratio", "data_type": "float", "default_value": "0.1"},
            ]
        ),
    },
    files={
        "file": open("path_to_file", "rb")
    },
    headers=headers,
)

我不断得到回应 b'{“errors”:{“form”:{ .

验证不应该按照实施的方式进行吗?有人能帮我找出我可能做错了什么吗?谢谢

目前,我正在使用一个字段。原始类处理上述相关问题:

class LearnerRequestSchema(Schema):
    files = fields.Raw(type="file")
    name = fields.Str(required=True)
    description = fields.Str(required=True)
    supervision_scope = fields.Enum(SupervisionScope, by_value=True, required=True)
    task_type = fields.Enum(TaskType, by_value=True, required=True)
    tool = fields.Enum(Tool, by_value=True, required=True)
    learner_family_id = fields.Int(required=True)
    hyperparams = fields.Raw()

问题是,我必须手动反序列化超参数字段,以检查是否存在所需的字段,而在前一种方法中,我会开箱即用地进行验证。