由于16.04 server 默认安装python 3.X ,部分应用需要依赖2.7
原文：https://www.jianshu.com/p/743967c7ab1b
安装：
下载Python2包，最新的版本为2.7.15 wget https://www.python.org/ftp/python/2.7.15/Python-2.7.15.tgz 解压缩 tar -xvf Python-2.7.15.tgz 准备安装 cd Python-2.7.15
安装：
./configure make
sudo make install
if no installl Ｃ＋＋ env do next :
Installing the GNU C compiler and GNU C++ compiler To install the gcc and g++ compilers, you will need the build-essential package. This will also install GNU make. build-essential contains a list of packages which are essential for building Ubuntu packages including gcc compiler, make and other required tools. $ sudo apt-get update $ sudo apt-get upgrade $ sudo apt-get install build-essential $ gcc -v $ make -v
