小编Ник*_*та 的帖子

我创建了 Pydantic 模型。但它不转换并输出错误请告诉我，出了什么问题。

classDTO：

from pydantic import BaseModel,Field
from typing import List,Dict
from datetime import date

class OurBaseModel(BaseModel):
    pass
    #class Config:
        #orm_mode = True

class SessionSubjectDTO(OurBaseModel):
    edu_year: int
    semester_type: str
    
class MarkDTO(OurBaseModel):
    semester_number: int
    subject_name: str
    control_type: str
    mark: str  # or int
    session_subject: SessionSubjectDTO #= Field(None, alias="SessionSubjectDTO")
    
class MarksDTO(OurBaseModel):
    __root__: List[MarkDTO]
    
class AttestationDTO(BaseModel):
    subject_name: str
    value: int
    attestation_start_date: date
    
class AttestationsDTO(OurBaseModel):
    __root__: List[AttestationDTO]
    
class DebtDTO(OurBaseModel):
    semester_number: int
    subject_name: str
    control_type: str
    session_subject: SessionSubjectDTO #= Field(None, alias="SessionSubjectDTO")
    
class DebtsDTO(OurBaseModel): …