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Old 05-17-2011, 04:51 PM   #1
Zeno McDohl
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Location: Saratoga, NY
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Yum not working


Yum came working with my CentOS install and it no longer works:
Quote:
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:
2.6.2 (r262:71600, Sep 26 2009, 03:35:56)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-46)]

If you cannot solve this problem yourself, please go to
the yum faq at:
http://wiki.linux.duke.edu/YumFaq
Quote:
[root@server23 ~]# python
Python 2.6.2 (r262:71600, Sep 26 2009, 03:35:56)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import yum
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named yum
I found this same issue:
http://thinkinginsoftware.blogspot.c...named-yum.html
(Yes, I have CentOS 5.3)

So I tried getting the rpm again:
Quote:
wget http://vault.centos.org/5.2/os/i386/...s.1.noarch.rpm
15:44:12 (550 KB/s) - `yum-3.2.8-9.el5.centos.1.noarch.rpm' saved [595885/595885]
and installing it:
Quote:
[root@server23 ~]# rpm -Uvh yum-3.2.8-9.el5.centos.1.noarch.rpm
Preparing... ########################################### [100%]
1:yum ########################################### [100%]
But that didn't help at all. Same error about no such module.

Last edited by Zeno McDohl; 05-17-2011 at 04:53 PM.
 
Old 05-17-2011, 05:14 PM   #2
knudfl
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Quote:
It's possible that the above module doesn't match the
current version of Python, which is: 2.6.2 ....
CentOS 5.x has python-2.4.3 : All admin tools depend on version 2.4.3,
which should never be changed.

You can however have an extra python(2.6), like /opt/python26/bin/python2.6,
but only one 'python' is allowed in the PATH : Must be 2.4.3 .

? ? May be you installed python26 from the EPEL repo ?
And renamed /usr/bin/python26 to 'python' ? ?

..

Last edited by knudfl; 05-17-2011 at 05:25 PM.
 
Old 05-17-2011, 05:37 PM   #3
knudfl
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Another thing : yum-3.2.8-9.el5.centos.1.noarch is a CentOS 5.0 package.
CentOS 5.3 came with yum-3.2.19-18.el5.noarch.rpm.

And if you do updates :
The current version is "yum-3.2.22-33.el5.centos.noarch.rpm"
( = update 5.6 = CentOS 5.6 ).
 
Old 05-17-2011, 05:56 PM   #4
Zeno McDohl
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Original Poster
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Oops fixed that:

Quote:
[root@server23 yum]# ls
yum-3.2.19-18.el5.centos.noarch.rpm yum-fastestmirror-1.1.16-13.el5.centos.noarch.rpm yum-priorities-1.1.16-13.el5.centos.noarch.rpm
Quote:
[root@server23 yum]# rpm -Uvh yum*
Preparing... ########################################### [100%]
1:yum ########################################### [ 33%]
2:yum-fastestmirror ########################################### [ 67%]
3:yum-priorities ########################################### [100%]
I probably did upgrade yum which caused this then.

Quote:
[root@server23 yum]# /usr/bin/python26 --version
Python 2.6.2
 
  


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