Linux下python的卸载与安装

卸载：
1、卸载python3.5

sudo apt-get remove python3.5

2、卸载python3.5及其依赖

sudo apt-get remove --auto-remove python3.5

3、清除python3.5

sudo apt-get purge python3.5

or

sudo apt-get purge --auto-remove python3.5

安装：
下载python

wget https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgz
wget -P /usr/lib https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgz(下载文件到指定目录)

解压、编译安装

tar -zxvf Python-2.7.9.tgz
cd Python-2.7.9
./configure --prefix=/usr/local/python-2.7.9
make
make install

系统自带了python版本，我们需要为新安装的版本添加一个软链

ln -s /usr/local/python-2.7.9/bin/python /usr/bin/python2.7.9