Ubuntu16.04怎样安装Python3.6

转自： http://www.javashuo.com/article/p-pxwgrdvj-ex.html

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Ubuntu16.04默认安装了Python2.7和3.5

请注意，系统自带的python千万不能卸载！

输入命令python

按Ctrl+D退出python命令行

输入命令sudo add-apt-repository ppa:jonathonf/python-3.6

按Enter确认

输入命令sudo apt-get update

输入命令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，如今修改成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

 

此时再输入命令python

能够看到此时已是Python3.6了

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添加by xiaou：

若是须要py3.6的开发环境：(由于须要python3.6m的so和/usr/include/python3.6m里的头文件)：

sudo apt-get install python3.6-dev