linux下安装python3.6.6

1.到python的官网去下载python3.6.3安装包，必须是Linux版本的

2.在/usr/tmp下下载python安装包

wget https: //www .python.org /ftp/python/3 .6.6 /Python-3 .6.6.tgz

3.解压python到/usr/local目录下　

tar  -zxvf Python-3.6.6.tgz -C  /usr/local

 4.安装必要组件

 #安装gcc在./configure时会error,configure: error: no acceptable C compiler found in $PATH 

yum  install  gc

 #安装openssl-devel，否则会忽略pip安装失败,pip command not found ，但是没有error,

yum  install  openssl-devel

 5.安装

cd  Python-3.6.6

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

make  &&  make  install

6.软连接，相当于快捷方式　

ln  -s  /usr/local/python3/bin/python3 .6  /usr/bin/python3

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

7.使用pip， python命令