liunx安装python3

写了个flask的项目丢到了服务器上运行不了，无法import其他的py文件，搞了半天才明白要安装python3才能运行flask，我原本服务器上的python忘了是什么时候安装的，然后项目 无法运行

下面是liunx安装python3的流程

1.下载

cd /home
wget http://cdn.npm.taobao.org/dist/python/3.6.5/Python-3.6.5.tgz

2.解压

tar -zxvf Python-3.6.5.tgz 

3.安装python3的编译环境

yum install -y gcc  
yum install -y zlib*
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  

4.进入Python-3.6.5

cd Python-3.6.5/

5.指定安装目录

./configure --prefix=/usr/local/python3 --with-ssl

6.编译源文件

make

7.安装

make install

8.建立软连接

 ln -s /usr/local/python3/bin/python3 /usr/bin/python3 
 ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3