centos安装软件比较麻烦，特此记录

1.准备编译环境

yum install zlib-devel bzip2-devel openssl-devel ncurses-devel -y

2.下载对应版本的Python

https://www.python.org/ftp/python/
笔者用wget下载的是3.6
wget https://www.python.org/ftp/python/3.6.3/Python-3.6.3.tar.xz
或者用
curl https://www.python.org/ftp/python/3.6.3/Python-3.6.3.tar.xz -o Python-3.6.3.tar.xz

3.解压

tar xf Python-3.6.3.tar.xz -C /usr/local/src/

4.编译

进入目录
cd /usr/local/src/Python-3.6.3/
安装依赖
yum install gcc-c++ gcc -y
关联输出
./configure --prefix=/usr/local/python3
编译
make -j 4 && make install

5.软连接

ln -s /usr/local/python3/bin/python3.6 /usr/local/bin/python3.6

6.测试

输入
python3.6 --version
如果出现版本号说明安装成功