安装依赖
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel
下载python版本
wget https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgz
tar xvzf Python-3.6.4.tgz
mv Python-3.6.4 python-3.6.4
cd python-3.6.4
编译安装python
./configure –prefix=/usr/local/python3.6
make
make install
替换之前的版本
mv /usr/bin/python /usr/bin/python2.6.6
ln -s /usr/local/python3.6/bin/python3.6 /usr/bin/python
查看当前pthon版本
python -V
修改yum配置，不然会报错
vi /usr/bin/yum
将第一行的
#!/usr/bin/python
改成
#!/usr/bin/python2.6.6