热议：pylance 的 python.analysis.typeCheckingMode 和 pydantic 动态生成的 class 冲突怎么办？

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1

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不管设置为哪一档，都会冲突

我的 pydantic 模型是这样定义的

class UserRegisterResponse(BaseModel):
    user: UserResponse | None = Field(None, description='用户信息')
    registered: bool = Field(default=False, description='是否注册成新号')
    already_exist: bool = Field(default=False, description='邮箱是否已存在')
    message: str = Field(default='', description='描述信息, 对外，前端可直接渲染')

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pylance 眼中动态生成的 class 是这样的

class UserRegisterResponse(
    *,
    user: UserResponse | None,
    registered: bool = False,
    already_exist: bool = False,
    message: str = ''
)

为什么会出现 user: UserResponse | None 这样的？不是设置默认值是 None 了吗？应该是 user: UserResponse | None = None 才对啊？

我的 pydantic 是 2.12.5

-> % pip show pydantic                                                                                                 
Name: pydantic
Version: 2.12.5
Summary: Data validation using Python type hints
Home-page: https://github.com/pydantic/pydantic
Author: 
Author-email: Samuel Colvin <s@muelcolvin.com>, Eric Jolibois <em.jolibois@gmail.com>, Hasan Ramezani <hasan.r67@gmail.com>, Adrian Garcia Badaracco <1755071+adriangb@users.noreply.github.com>, Terrence Dorsey <terry@pydantic.dev>, David Montague <david@pydantic.dev>, Serge Matveenko <lig@countzero.co>, Marcelo Trylesinski <marcelotryle@gmail.com>, Sydney Runkle <sydneymarierunkle@gmail.com>, David Hewitt <mail@davidhewitt.io>, Alex Hall <alex.mojaki@gmail.com>, Victorien Plot <contact@vctrn.dev>, Douwe Maan <hi@douwe.me>
License-Expression: MIT
Location: /Users/ponponon/.local/share/virtualenvs/bossnowork_api-9SBSK7PM/lib/python3.13/site-packages
Requires: annotated-types, pydantic-core, typing-extensions, typing-inspection
Required-by: fastapi, openai, zai-sdk