如何在虚拟机中安装requests-ntlm2？Django项目安装失败求助

问题重现 #

在基于Python2.7.17的Django项目中尝试安装requests-ntlm2时，出现连接超时及找不到包的错误，报错信息如下：

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7f7c928569d0>, 'Connection to pypi.org timed out. (connect timeout=15)')': /simple/requests-ntlm2/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7f7c92856880>, 'Connection to pypi.org timed out. (connect timeout=15)')': /simple/requests-ntlm2/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7f7c92856610>, 'Connection to pypi.org timed out. (connect timeout=15)')': /simple/requests-ntlm2/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7f7c928565b0>, 'Connection to pypi.org timed out. (connect timeout=15)')': /simple/requests-ntlm2/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<urllib3.connection.VerifiedHTTPSConnection object at 0x7f7c928564f0>, 'Connection to pypi.org timed out. (connect timeout=15)')': /simple/requests-ntlm2/
ERROR: Could not find a version that satisfies the requirement requests-ntlm2 (from versions: none)
ERROR: No matching distribution found for requests-ntlm2

中文翻译：

警告：连接pypi.org超时（连接超时=15）导致连接中断后，正在重试（剩余重试次数4）：/simple/requests-ntlm2/
警告：连接pypi.org超时（连接超时=15）导致连接中断后，正在重试（剩余重试次数3）：/simple/requests-ntlm2/
警告：连接pypi.org超时（连接超时=15）导致连接中断后，正在重试（剩余重试次数2）：/simple/requests-ntlm2/
警告：连接pypi.org超时（连接超时=15）导致连接中断后，正在重试（剩余重试次数1）：/simple/requests-ntlm2/
警告：连接pypi.org超时（连接超时=15）导致连接中断后，正在重试（剩余重试次数0）：/simple/requests-ntlm2/
错误：找不到满足requests-ntlm2要求的版本（可用版本：无）
错误：未找到匹配requests-ntlm2的发行版

解决方案 #

1. 修复网络连接问题 #

• 使用国内PyPI镜像源：由于官方PyPI连接超时，切换到国内镜像（如豆瓣）安装：

  pip install requests-ntlm2 -i https://pypi.douban.com/simple/
  

• 配置代理（如果需要）：如果你的网络需要代理访问外部资源，添加代理参数：

  pip install requests-ntlm2 --proxy=http://你的代理地址:端口
  

2. 替换为兼容Python2.7的替代包 #

requests-ntlm2可能已停止维护或不支持Python2.7，建议使用官方维护的requests-ntlm包，它完全兼容Python2.7：

pip install requests-ntlm

3. 手动本地安装 #

如果网络问题无法解决，可手动下载包文件后本地安装：

1. 下载requests-ntlm2的源码包（.tar.gz）或对应Python2.7的wheel包（.whl）
2. 执行本地安装命令：
   • 对于wheel包：

     pip install /path/to/requests-ntlm2-xxx.whl
     

   • 对于源码包：

     tar -zxvf requests-ntlm2-xxx.tar.gz
     cd requests-ntlm2-xxx
     python setup.py install
     

内容的提问来源于stack exchange，提问作者Sakthi Priya