升级python版本后，运行yum
# yum -y install openssl
提示如下:
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:
No module named yum
Please install a package which provides this module, or
verify that the module is installed correctly.
It's possible that the above module doesn't match the
current version of Python, which is:
2.7.3 (default, Jul 15 2014, 16:52:36)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)]
If you cannot solve this problem yourself, please go to
the yum faq at:
分析应该是yum和Python是依赖关系，yum是python的模块，所以需要修改yum来解决:
1. 查看python的安装路径
# python
Python 2.7.3 (default, Jul 15 2014, 16:52:36)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>
# whereis python
python: /usr/bin/python2.4 /usr/bin/python /usr/bin/python2.6 /usr/lib/python2.4 /usr/local/bin/python
/usr/local/bin/python2.6-config /usr/local/bin/python3.3-config /usr/local/bin/python3.3 /usr/local/bin/python3.3m
/usr/local/bin/python3.3m-config /usr/local/bin/python2.6 /usr/local/lib/python2.4 /usr/local/lib/python3.3
/usr/local/lib/python2.6 /usr/include/python2.4 /usr/share/man/man1/python.1.gz
2. 修改yum
# vim /usr/bin/yum
将 #!/usr/bin/python 改成 #!/usr/bin/python2.4
【保存并退出】
3. 再测试yum安装，成功；
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