下载依赖环境 1.首先准备一个可以连接网络的虚拟机下载所需要的依赖到指定的文件夹下面 ``` yum install --downloadonly --downloaddir=./py3 zlib-devel bzip2-devel openssl-devel ncurses-devel epel-release gcc gcc-c++ xz-devel readline-devel gdbm-devel sqlite-devel tk-devel db4-devel libpcap-devel libffi-devel ``` 2.打包并下载python3源码 3.上传依赖的压缩包和python3的源码包进行安装。