ubuntu安装和卸载python

安装Python3的命令

sudo apt-get install python3.5

1、卸载python3.4

sudo apt-get remove python3.4

2、卸载python3.4及其依赖

sudo apt-get remove --auto-remove python3.4

3、清除python3.4

sudo apt-get purge python3.4
or
sudo apt-get purge --auto-remove python3.4

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