# 下载源码包安装，先装wget，或curl。

yum install wget

# 再安装解压缩和编译环境：

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

# 下载源码包：

cd /usr/local/src

wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz

# 解压：

tar -zxf /usr/local/src/Python-3.6.0.tgz && cd Python-3.6.0

mkdir /usr/local/python3

# 编译安装：

./configure --prefix=/usr/local/python3

make && make altinstall

# 建立链接

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

# 可直接使用

"python3"

ln -s /usr/local/python3/bin/pip3.6  /usr/bin/pip3