centos 7 python2.7.5升级到3.5.2

centos 7 python2.7.5升级到3.5.2

系统 centos 7

软件包 python3.5.2    下载：wget https://www.python.org/ftp/python/3.5.2/Python-3.5.2.tgz

查看原有原有软件包

[[email protected] ~]# python  -V

Python 2.7.5

创建Python-3.5.2的安装目录

[[email protected] ~]# mkdir /usr/local/python3.5.2

解压软件包

[[email protected] ~]# cd   /usr/src

[[email protected] src]# tar  zxf  Python-3.5.2.tgz

进入目录

[[email protected] src]# cd   Python-3.5.2/

编译

[[email protected] Python-3.5.2]# ./configure --prefix=/usr/local/python3.5.2

安装

[[email protected] Python-3.5.2]# make  &&   make    install

备份老版本

[[email protected] Python-3.5.2]# mv /usr/bin/python /usr/bin/python_2.7.5

创建软链接

[[email protected] Python-3.5.2]# ln -s /usr/local/python3.5.2/bin/python3.5 /usr/bin/python

查看现在版本

[[email protected] ~]# python  -V

Python 3.5.2

升级完成