Hi, Trying to upgrade 4.5 to 5 but it seems python-elementtree has the same version in both 4.5 and 5.0 but one is build for python 2.3 and the other for 2.4. Probably because of the same version, the package is not selected for upgrade when "yum upgrade" and the upgrade fails with: "Error: Missing Dependency: python-abi = 2.3 is needed by package python-elementtree"
RHEL4 doesn't include python-elementtree; you'll need to get an update from wherever you got the package from.