先打开Ubuntu终端执行数据更新:sudo apt update
sudo apt upgrade
然后安装python2的相关依赖项:sudo apt install -y build-essential checkinstall libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev libffi-dev
在Ubuntu终端,cd到桌面,下载python2的源码:wget https://www.python.org/ftp/python/2.7.18/Python-2.7.18.tgz
然后解压缩:sudo tar -xvf Python-2.7.18.tgz
cd到刚解压好的文件夹中,执行环境检查命令:./configure --enable-optimizations
然后编译安装:make
sudo make install