On fc3 x86_64: rpm-4.3.3-1 yum-2.1.12-1 python-2.4-0.c1.1 yum Traceback (most recent call last): File "/usr/bin/yum", line 6, in ? import yummain File "/usr/share/yum-cli/yummain.py", line 23, in ? import yum File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 21, in ? import rpm ImportError: /usr/lib64/librpm-4.3.so: undefined symbol: rpm_execcon sean