Anaconda 下载
https://www.anaconda.com/download/#linux
下载文件 Anaconda3-5.2.0-Linux-x86_64.sh
bash Anaconda3-5.2.0-Linux-x86_64.sh
一路enter
mv /usr/bin/python /tmp
ls -s /usr/loca/python3/bin/python3 /usr/bin/python
