Fedora 9: yum problem with nss and/or Python?

[Michael Hannon <jm_hannon@xxxxxxxxx>]

Greetings.  We've got a number of Fedora 9 systems at work, and most of
them seem now to be stable regarding yum updates.  But on one of the
systems we're getting an error trying to do a "yum update":

    [root@mysys ~]# yum -y update
    There was a problem importing one of the Python modules
    required to run yum. The error leading to this problem was:

       /lib/libnss3.so: undefined symbol: et_sgn_DigestInfoTemplate,
       version NSS_3.2

    Please install a package which provides this module, or
    verify that the module is installed correctly.
    .
    .
    .

We did find that four yum-related packages were out of date on the
system in question.  We downloaded them "by hand" from one of the
mirrors and force-installed them:

    yum-3.2.19-3.fc9.noarch.rpm
    yum-packagekit-0.2.5-1.fc9.i386.rpm
    yum-fastestmirror-1.1.16-1.fc9.noarch.rpm
    yum-utils-1.1.16-1.fc9.noarch.rpm

That didn't help.  Please let me know if you have any suggestions about
this.  I've appended some more details about the system.

Thanks.

-- Mike

[root@mysys ~]# cat /etc/redhat-release
Fedora release 9 (Sulphur)

[root@mysys ~]# yum -y update
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:

   /lib/libnss3.so: undefined symbol: et_sgn_DigestInfoTemplate, version
NSS_3.2

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:
2.5.1 (r251:54863, Jun 15 2008, 18:24:51)
[GCC 4.3.0 20080428 (Red Hat 4.3.0-8)]

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


[root@mysys ~]# rpm -qa | grep yum | sort
yum-3.2.19-3.fc9.noarch
yum-fastestmirror-1.1.16-1.fc9.noarch
yum-metadata-parser-1.1.2-8.fc9.i386
yum-packagekit-0.2.5-1.fc9.i386
yum-updatesd-0.9-1.fc9.noarch
yum-utils-1.1.16-1.fc9.noarch

[root@mysys ~]# rpm -qa | grep ^python | sort
python-2.5.1-26.fc9.i386
python-crypto-2.0.1-12.1.i386
python-dateutil-1.2-2.fc9.noarch
python-genshi-0.5-1.fc9.i386
python-imaging-1.1.6-9.fc9.i386
python-iniparse-0.2.3-3.fc9.noarch
python-ldap-2.3.1-3.fc9.i386
python-libs-2.5.1-26.fc9.i386
python-numeric-24.2-11.fc9.i386
python-paste-1.6-1.fc9.noarch
python-reportlab-2.1-2.fc9.noarch
python-sexy-0.1.9-5.fc9.i386
python-urlgrabber-3.0.0-9.fc9.noarch


      

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