python data_error ai_generated true

pydantic_core._pydantic_core.ValidationError: Endpoint 模型验证错误：URL scheme 必须是 'http' 或 'https'

pydantic_core._pydantic_core.ValidationError: 1 validation error for Endpoint url URL scheme should be 'http' or 'https' [type=url_scheme, input_value='ftp://example.com', input_type=str]

ID: python/pydantic-validation-error-url-scheme

其他格式: JSON · Markdown 中文 · English
80%修复率
87%置信度
0证据数
2024-08-03首次发现

版本兼容性

版本状态引入弃用备注
2.x active — — —

根因分析

AnyHttpUrl / HttpUrl 类型拒绝非 http(s) 协议。传入 'ftp://'、'file://' 或 'ws://' 会触发 url_scheme 错误。

English

AnyHttpUrl / HttpUrl types reject non-http(s) schemes. Passing 'ftp://', 'file://', or 'ws://' triggers url_scheme error.

generic

解决方案

  1. 95% 成功率 
    from pydantic import BaseModel, AnyUrl

class Endpoint(BaseModel):
    url: AnyUrl
  2. 88% 成功率 
    from pydantic import BaseModel, HttpUrl, field_validator

class Endpoint(BaseModel):
    url: HttpUrl

    @field_validator('url', mode='before')
    @classmethod
    def fix_scheme(cls, v):
        return v.replace('ftp://', 'https://') if isinstance(v, str) else v

无效尝试

常见但无效的做法:

  1. 90% 失败

    Produces invalid URLs like 'http://ftp://example.com' which fail further validation.

  2. 70% 失败

    Loses URL validation entirely; invalid URLs slip through and break HTTP clients downstream.