如何为 Enum 派生类扩展 Python 类属性

from enum import Enum

class ErrorCode(str, Enum):
    GENERAL_ERROR = 'A general error has occurred.'
    INVALID_RECIPIENT_EMAIL_ADDRESS = 'The recipient email address provided is not a valid email address.'

    @classmethod
    def addErrorsAsAttrib(cls, err_code, err_description):
        setattr(cls, err_code, err_description)

extended_error_codes = ErrorCode.addErrorsAsAttrib('NEW_ERROR2', Enum('NEW_ERROR2', 'The new error 2'))

print(ErrorCode.__members__.keys())

# OUTPUT:
# dict_keys(['GENERAL_ERROR', 'INVALID_RECIPIENT_EMAIL_ADDRESS'])

我正在尝试找到一种方法将新的错误代码动态添加到我的 ErrorCode 类（一个 Enum 派生类），但无法确定正确的方法来做到这一点。根据代码示例 - 我尝试过 setattr() 但这没有按预期执行。任何帮助，将不胜感激。