407 pip network_error ai_generated partial

警告:在连接被 'ProxyError' 中断后重试(重试总数=0):('无法连接到代理。', error('隧道连接失败:需要 407 代理身份验证'))

WARNING: Retrying (Retry(total=0)) after connection broken by 'ProxyError': ('Cannot connect to proxy.', error('Tunnel connection failed: 407 Proxy Authentication Required'))

ID: pip/network-proxy-authentication-407

其他格式: JSON · Markdown 中文 · English
85%修复率
89%置信度
1证据数
2024-06-01首次发现

版本兼容性

版本状态引入弃用备注
pip 24.2 active
Python 3.12 active
urllib3 2.2 active

根因分析

pip 位于需要身份验证的企业代理后面,但环境或 pip 配置中缺少或错误的代理凭据。

English

pip is behind a corporate proxy that requires authentication, but the proxy credentials are missing or incorrect in the environment or pip configuration.

generic

官方文档

https://pip.pypa.io/en/stable/topics/configuration/#environment-variables

解决方案

  1. 在环境变量中设置带凭据的代理:Windows 上使用 'set HTTP_PROXY=http://user:[email protected]:8080' 和 'set HTTPS_PROXY=http://user:[email protected]:8080',Linux/Mac 上使用 export。
  2. 全局配置 pip 的代理:'pip config set global.proxy http://user:[email protected]:8080'
  3. 使用代理身份验证助手如 'cntlm' 处理 NTLM 认证,并将 HTTP_PROXY 设置为 localhost:3128。

无效尝试

常见但无效的做法:

  1. 95% 失败

    Setting HTTP_PROXY and HTTPS_PROXY without credentials still fails with 407; authentication is required.

  2. 70% 失败

    Disabling proxy detection with '--proxy ""' may work only if the machine has direct internet access, but often fails in corporate networks.

  3. 98% 失败

    Using 'pip install --trusted-host pypi.org' bypasses SSL checks but does not solve proxy authentication.