1、登录python官网https://www.python.org/downloads/release/python-365/
2、登录centos7系统
3、进入/usr/tmp下
执行wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tar.xz下载python3.6.5
4、解压
tar -xvf Python-3.6.5.tar.xz
5、进入 Python-3.6.5目录
cd Python-3.6.5
6、由于python底层需要依赖c/c++ 首先安装依赖包
yum -y groupinstall "Development tools"
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
安装完毕之后
7、开始安装python
./configure --prefix=/usr/local/python3
make & make install
安装完毕
8、添加软连接
ln -s /usr/local/python3/bin/python3.6 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
9、测试
输入python3
10、由于centos7.2默认已经安装了2.7.5,所以输入python时显示的界面为python时显示