yum and up2date broken after rpm update

[Christian Schlaefcke <cschlaefcke wms-network de>]

Hi Folks,

when I run yum or up2date from console I get:
yum:
Traceback (most recent call last):
  File "/usr/bin/yum", line 22, in ?
    import yummain
  File "/usr/share/yum/yummain.py", line 22, in ?
    import clientStuff
  File "/usr/share/yum/clientStuff.py", line 18, in ?
    import rpm
ImportError: /usr/lib/python2.3/site-packages/rpmmodule.so: undefined
symbol: rpmdsBT

up2date:
Traceback (most recent call last):
  File "/usr/sbin/up2date", line 12, in ?
    import rpm
ImportError: /usr/lib/python2.3/site-packages/rpmmodule.so: undefined
symbol: rpmdsBT

What´s the problem? How do I get this "rpmdsBT" resolved?

Thanks & Regards,

Chris