Anaconda解决Pytorch安装（升级）过程中的CondaHTTPError问题

安装过程中出现CondaHTTPError

pytorch-error:

CondaHTTPError: HTTP 000 CONNECTION FAILED for url
Elapsed: -

An HTTP error occurred when trying to retrieve this URL.

解决：

按如下配置.condarc文件，必须添加下面三个，其中Pytorch文件存放在/cloud/。.condarc文件一般windows：C:\users\username\，linux：/home/username/

channels:
  - defaults
show_channel_urls: true
default_channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
custom_channels:
  conda-forge: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  msys2: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  bioconda: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  menpo: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  pytorch: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
  simpleitk: https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud

执行相应的install语句：https://pytorch.org/