如何解决安装torch时出现的“No matching distribution found for typing-extensions”错误？

问题场景 #

从HTTP下载torch的whl文件后，执行以下安装命令：

pip install "D:\CUDA\torch-1.12.0+cu113-cp39-cp39-win_amd64.whl"

出现SSL证书验证失败错误，最终无法获取typing-extensions依赖，报错信息如下：

Looking in indexes: https://pypi.org/simple/
Processing d:\cuda\torch-1.12.0+cu113-cp39-cp39-win_amd64.whl
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1129)'))': /simple/typing-extensions/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1129)'))': /simple/typing-extensions/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1129)'))': /simple/typing-extensions/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1129)'))': /simple/typing-extensions/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1129)'))': /simple/typing-extensions/
Could not fetch URL https://pypi.org/simple/typing-extensions/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/typing-extensions/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1129)'))) - skipping
INFO: pip is looking at multiple versions of torch to determine which version is compatible with other requirements. This could take a while.
ERROR: Could not find a version that satisfies the requirement typing-extensions (from torch) (from versions: none)
ERROR: No matching distribution found for typing-extensions

环境信息 #

• NVIDIA GPU：RTX A4000
• CUDA版本：11.3（通过nvcc -V验证）
• 已准备的whl文件：
  • torch：1.12.0+cu113（torch-1.12.0+cu113-cp39-cp39-win_amd64.whl）
  • torchvision：0.13.0+cu113（torchvision-0.13.0+cu113-cp39-cp39-win_amd64.whl）
  • torchaudio：0.12.0+cu113（torchaudio-0.12.0+cu113-cp39-cp39-win_amd64.whl）

解决方案 #

方法1：跳过SSL验证安装 #

执行安装命令时添加信任主机参数，绕过SSL证书验证：

pip install "D:\CUDA\torch-1.12.0+cu113-cp39-cp39-win_amd64.whl" --trusted-host pypi.org --trusted-host files.pythonhosted.org

方法2：手动下载依赖离线安装 #

1. 下载适配Python3.9、Windows AMD64架构的typing-extensions whl文件。
2. 先安装依赖：

pip install "本地路径\typing_extensions-对应版本-cp39-none-win_amd64.whl"

3. 再安装torch：

pip install "D:\CUDA\torch-1.12.0+cu113-cp39-cp39-win_amd64.whl"

方法3：使用国内镜像源 #

替换pip源为国内镜像，避免SSL问题：

pip install "D:\CUDA\torch-1.12.0+cu113-cp39-cp39-win_amd64.whl" -i https://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn

内容的提问来源于stack exchange，提问作者Calla