centos broken yum after installing new python

mad_penguin · 11-17-2011, 01:37 PM

Hi gents

I'm smashing my head up the wall for a couple of hours now. I have never had a issue which I couldn't resolve on my own yet, but this apparently simple issue is driving me crazy.

So, on a Centos5.7 I've which had python2.4 I've installed also python2.5. Unfortunately I have broke yum and I can fin any solution to repair it.

I have downloaded the rpm and installed once more, they install fine without errors but when running yum, I get:

'import site' failed; use -v for traceback
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:
2.4.3 (#1, Sep 21 2011, 19:55:41)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-51)]

If you cannot solve this problem yourself, please go to
the yum faq at:
http://wiki.linux.duke.edu/YumFaq

Any thoughts ?

BTW, any fixes I found on LQ failed!

( Please help!

lithos · 11-17-2011, 02:54 PM

what command do you type ?

Code:

yum ..... ?

or what ?

maybe

Code:

yum clean all

yum repolist all

will make a difference ?

What is your "ls /etc/yum.repos.d/"

Code:

drwxr-xr-x  2 root root  4096 Apr  9  2011 ./
drwxr-xr-x 95 root root 12288 Nov 16 09:49 ../
-rw-r--r--  1 root root  1333 Apr  9  2011 atomic.repo
-rw-r--r--  1 root root  2049 Jun 19  2008 CentOS-Base.repo
-rw-r--r--  1 root root   626 Jun 19  2008 CentOS-Media.repo
-rw-r--r--  1 root root   710 Apr 17  2007 CentOS-Testing.repo
-rw-r--r--  1 root root   954 Apr  9  2011 epel.repo
-rw-r--r--  1 root root  1054 Apr 25  2008 epel-testing.repo
-rw-r--r--  1 root root   684 Mar  8  2007 mirrors-rpmforge
-rw-r--r--  1 root root   529 May 17  2010 remi.repo
-rw-r--r--  1 root root   428 Mar  8  2007 rpmforge.repo

or "cat /etc/yum.conf"

Code:

[main]
cachedir=/var/cache/yum
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
distroverpkg=redhat-release
tolerant=1
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
bugtracker_url=http://bugs.centos.org/set_project.php?project_id=16&ref=http://bugs.centos.org/bug_report_page.php?category=yum

# Note: yum-RHN-plugin doesn't honor this.
metadata_expire=1h

installonly_limit = 5

# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d

You don't provide any information of
- what you type
or
- what you do
to get this "error"

Quote:

'import site' failed; use -v for traceback

and use [code] tags around text to make readable what is your output or command lines you type.

unSpawn · 11-17-2011, 05:36 PM

Quote:

Originally Posted by mad_penguin

on a Centos5.7 I've which had python2.4 I've installed also python2.5.

Centos depends on Python for system ops and uses specific software versions to ensure stability, longevity and integrity. As far as I know Red Hat nor Centos provide official documentation or HOWTO's on how to upgrade from Python-2.4 to Python-2.5. Your valuable lesson for today is that fscking with Python, RPM and their dependencies means jeopardizing the system. Remove all remnants of Python-2.5 packages and dependencies then install the packages listed in the attached screen shot via rpm. The list is from a lean and mean Centos-5.7 installation and only lists the core Python, RPM and Yum packages and depdendencies.