CentOS 7增加Python3与Python2共存

1，下载Python3.6

wget https://www.python.org/ftp/python/3.6.2/Python-3.6.2.tar.xz

2，解压Python3.6

tar -xvJf Python-3.6.2.tar.xz

3，安装相关包

yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make

4，进入到Python3解压后的文件夹

cd /Python-3.6.2/

5，编译安装，且安装到usr/local/python3

./configure prefix=/usr/local/python3
make && make install

6，添加Python3的软链接到用户执行目录usr/bin

ln -s /usr/local/python3/bin/python3 /usr/bin/python3

7，测试，输入python -V

如果显示Python 3.6.2就是成功了