Yum command not available after upgrading Python version __python

Refer to this blog fix:

Http://www.cnblogs.com/fibre/p/4069966.html

New version of Python installation directory/usr/local/python3

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

# Make && make install

# Mv/usr/bin/python/usr/bin/python_old #把旧版本的python移至python_old下

# ln-s/usr/local/python3/bin/python/usr/bin/python #创建新版本链接

# yum-y Install gcc #报错

File "/usr/bin/yum", line 30
Except Keyboardinterrupt, E:
^
Syntaxerror:invalid syntax

When viewed online, yum commands rely on Python parsing, so the Yum command is directed back to the original Python, or python_old.

# Vi/usr/bin/yum #打开yum命令文件, change the first line of script start address

# yum--help #查看yum命令正常