背景
from pydantic import BaseModel, EmailStr class UserIn(BaseModel): username: str password: str email: EmailStr full_name: Optional[str] = None
定义的 Pydantic Model 某个字段声明为 EmailStr 类型
运行 uvicorn 服务器的时候报错
ImportError: email-validator isnot installed, run `pip install pydantic[email]`
根因
缺少 email_validator 库
解决方法
pip install email_validator
注意
虽然它提示了解决方法，但很大可能会提示你
> pip install pydantic[email]
zsh: no matches found: pydantic[email]
![【Python】 已解决：（pip提示）[notice] To update, run: python.exe -m pip install --upgrade pip](https://ucc.alicdn.com/pic/developer-ecology/q2u6twjpprubc_e294ee1cad0543b6ad7c95dfb8a5d553.png?x-oss-process=image/format,webp/resize,h_160,m_lfit)