如何修复 - UserWarning：Pydantic 序列化器警告？

Question

这些警告的含义是什么以及如何解决它们？它会产生什么样的问题？

用户警告：

  Expected `Union[list[definition-ref], definition-ref, bool]` but got `JsonSchemaObject` - serialized value may not be as expected
  Expected `Union[definition-ref, bool]` but got `JsonSchemaObject` - serialized value may not be as expected
  Expected `Union[definition-ref, bool]` but got `JsonSchemaObject` - serialized value may not be as expected
  Expected `Union[definition-ref, bool]` but got `JsonSchemaObject` - serialized value may not be as expected
  return self.__pydantic_serializer__.to_python(

重现：

pets.json

{
    "pets": [
      {
        "name": "dog",
        "age": 2
      },
      {
        "name": "cat",
        "age": 1
      },
      {
        "name": "snake",
        "age": 3,
        "nickname": "python"
      }
    ],
    "status": 200
  }

命令：

datamodel-codegen  --input pets.json --input-file-type json --output model.py

版本：

python - 3.11.4
pydantic==2.1.1
datamodel-code-generator==0.21.4
genson==1.2.2

Answer 1

要知道到底出了什么问题，您应该提供解析该对象的 pydantic 模型。