1、安装开发工具包
sudo yum -y groupinstall "Development tools"
2、安装依赖包
sudo 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 libffi-devel
3、下载python3.7的“源码”：
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz
4、解压
tar -xJvf Python-3.7.0.tar.xz
5、用cd命令进入解压出来的文件夹
cd Python-3.7.0
6、执行编译程序，并指定路径，最后共享
./configure --prefix=/usr/local/python3 --enable-shared
7、执行安装
make && make install
8、配置环境变量（创建python3,pip,软链接，放入/usr/bin下）
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip
9、将编译目录下的libpython3.7m.so.1.0文件复制到
cp /root/Python3.7.0/libpython3.7m.so.1.0 /usr/lib64/libpython3.7m.so.1.0