报错原因

• WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by
  'ConnectTimeoutError

• ERROR: Could not find a version that satisfies the requirement glob (from versions: none) ERROR: No matching distribution found for glob
  An HTTP error occurred when trying to retrieve this URL.

• HTTP errors are often intermittent, and a simple retry will get you on your way.
  ‘http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/linux-64’

解决方案

检查是否打开了科学上网工具，关闭或者改成直连模式，检查vim ~/.bashrc中是否有

export http_proxy="ip:端口号"
export https_proxy="ip:端口号"

如果有，注释掉
重启终端，即可安装

或者指定安装源

pip install xxxxxx -i http://pypi.douban.com/simple --trusted-host pypi.douban.com