16.04 ubuntu python3.6 install

Ubuntu16.04默认安装了Python2.7和3.5

系统自带的python千万不能卸载！

输入python

sudo add-apt-repository ppa:jonathonf/python-3.6

完了，按enter键确认

再输入如下

sudo apt-get update

sudo apt-get install python3.6

按Y确认

调整python3的优先级，使得3.6优先级较高

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2

更改默认值，python默认为Python2，现在修改为Python3

sudo update-alternatives --install /usr/bin/python python /usr/bin/python2 100

sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 150

 

sudo su

update-alternatives --config python

 

https://blog.csdn.net/qq_42693848/article/details/88900553

https://www.cnblogs.com/Yanfang20180701/p/10588087.html

https://blog.csdn.net/qq_33733356/article/details/106969109

evo

https://www.cnblogs.com/rjjhyj/p/11646791.html