下载包：

wget https://www.python.org/ftp/python/3.6.3/Python-3.6.3.tar.gz

解压安装：

tar -zvxf  Python-3.6.3.tar.gz

cd Python-3.6.3

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

make && make install

做软链：

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

测试：

python3.6

输出以下说明成功：