CentOS System python2.x Upgrade python3.x

1. Centos7 initial installation of the Python version is 2.7.5

2. Download the latest python3.5.2, unzip to/USR/LOCAL/SRC

3. Configure, compile, test, install (according to the software Readme instructions)

./configure--prefix=/usr/local/python3.5.2

Make

Make Test

Make install

4. Back up the original Python file (through the command ls-l/usr/bin/python can see the python file Soft link point to the file , similar to window shortcut)

mv/usr/bin/python/usr/bin/python2.7.5

5. Create a "shortcut":

Ln-s/usr/local/python3.5.2/bin/python3.5/usr/bin/python

6. Modify Yum:

Since Yum is using the python2.x version, all upgrades result in Yum not being used, although the original python2.x still exists;

Just modify the execution version of the Yum file to:

Change the #!/usr/bin/python of the file head to #!/usr/bin/python2.7.5 save exit;

Reference:

Http://jingyan.baidu.com/album/86112f137e502a2736978763.html?picindex=1

CentOS System python2.x Upgrade python3.x