Anaconda更新失敗簡單解決[CondaHTTPError: HTTP 000 CONNECTION FAILED for url]

問題：conda無法安裝更新，報錯內容如下：
參考鏈接：conda httperror http none none for url none Anaconda更新失敗

conda create -n tensorflow python=3.5

Fetching package metadata .......
CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://nanomirrors.tuna.tsinghua.edu.cn/anaconda/cloud/linux-64/rpodata.json>
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.
ConnectTimeout(MaxRetryError("HTTPSConnectionPool(host='nanomirrors.tuna.tsinghua.edu.cn', port=443): Max retries exceded with url: /anaconda/cloud/linux-64/repodata.json (Caused by ConnectTimeoutError(<requests.packages.urllib3.connecton.VerifiedHTTPSConnection object at 0x7fb6d340dcc0>, 'Connection to nanomirrors.tuna.tsinghua.edu.cn timed out. (connct timeout=9.15)'))",),)
解決方法：

#首先先添加清華的鏡像源
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
conda config --set show_channel_urls yes

#如果無法解決，則刪除channels配置文件中部分內容

#具體操作如下:
#1、快速創建channels配置文件的備份(保險起見)
cp ~/.condarc{,.bak}

#查看配置文件的內容
cat ~/.condarc.bak
channels:
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/
- http://nanomirrors.tuna.tsinghua.edu.cn/anaconda/cloud
- defaults
- http://nanomirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda
- http://nanomirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda/conda
- bioconda
- r
- conda-forge
show_channel_urls: true

#2、刪除部分內容
## 主要是刪除此行： - defaults
#修改后配置文件的內容如下：
vim ~/.condarc
channels:
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/
show_channel_urls: true