python3.5安装

1.安装相关依赖库（工具包）

yum install gcc patch libffi-devel python-devel  zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel -y

2.到python官网找到下载路径, 用wget下载

wget https://www.python.org/ftp/python/3.5.6/Python-3.5.6.tgz

#python源码的下载地址。（全都在这了）

https://www.python.org/ftp/python/

3.解压tgz包

tar -zxvf Python-3.5.1.tgz

cd Python-3.5.0 做配置

./configure –prefix=/usr/python3   #安装目录在/usr/python3

make && make install

4.建立软连接

1. mv /usr/bin/python /usr/bin/python.bak   #删除原有python2的链接