Apparently, some items still want python 2.6 instead of new python 2.7.
From today's failed yum update:
Running Transaction Check
ERROR with transaction check vs depsolve:
python(abi) = 2.6 is needed by (installed) alchemist-1.0.37-8.fc12.x86_64
python(abi) = 2.6 is needed by (installed)
system-config-display-2.2-1.fc12.x86_64
python-abi = 2.6 is needed by (installed) alchemist-1.0.37-8.fc12.x86_64
python(abi) = 2.6 is needed by (installed) alchemist-1.0.37-8.fc12.x86_64
python(abi) = 2.6 is needed by (installed)
system-config-display-2.2-1.fc12.x86_64
python-abi = 2.6 is needed by (installed) alchemist-1.0.37-8.fc12.x86_64
-gene