有效解决CondaHTTPError: HTTP 000 CONNECTION FAILED for url问题

问题描述

使用conda安装pytorch时出现如下问题导致安装失败：
‘’‘javascript
‘’’

(nlptf114) study/$ conda install pytorch torchvision torchaudio cudatoolkit=10.2 -c pytorch
Collecting package metadata (current_repodata.json): ...working... failed

CondaHTTPError: HTTP 000 CONNECTION FAILED for url 
Elapsed: -

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.

If your current network has https://www.anaconda.com blocked, please file
a support request with your network engineering team.

'https://repo.anaconda.com/pkgs/main/win-64'

本机环境

win10+64位+conda 4.8.3

解决方法

1. 更换源

conda config --add channels http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/win-64
conda config --add channels http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/win-64
conda config --set show_channel_urls yes

我的系统是win10 64位 所以在源地址后面加上win-64，其它系统的话根据下图片中的分类选一个即可

2. 核对 “.condarc” 文件

打开用户目录C:\User\zhangsan下的 “.condarc” 文件，如果channels 下面有 “- defaults” 的话需要删除它，如下所示：

删除-defaults后解决问题。