CentOS6.5 install Python2.7, yum appears "No module named yum" error

Install python2.7 by installing the following method:

Yum install–y python27 python27-devel python-/usr/bin/-RF PYTHONCP python2. 7 python

Yum error occurred: No module named Yum

Workaround, see which versions of Python are available under/usr/bin

Ll/usr/bin

I am here: 2.6 and 2.7 (just installed)
Because the Yum command is incompatible with python2.7, you need to modify the/usr/bin/yum file, vi /usr/bin/yum open it, and change the first line from "#!/usr/bin/python" to "#!/usr/bin/python2.6"

CentOS6.5 install Python2.7, yum appears "No module named yum" error