1. 安装依赖环境

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

2. 下载 Python 3.6.5

wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz

3. 创建安装目录

mkdir -p /usr/local/python3

4. 解压文件

tar -zxvf Python-3.6.5.tgz

5. 编译安装

cd Python-3.6.5./configure --prefix=/usr/local/python3

make

make install

6. 建立Python3 的软连接

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

7. 并将/usr/local/python3/bin加入PATH

vim ~/.bash_profile

修改以下代码：

PATH=$PATH:$HOME/bin:/usr/local/python3/bin

使用以下命令，使修改生效：

source ~/.bash_profile

8. 检查是否安装完成

python3

出现以下代码表示安装完成：

[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux

Type "help", "copyright", "credits" or "license" formore information.

>>>