emerge -pv dev-lang/python

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild   R   ] dev-lang/python-2.4.3-r1  USE="berkdb gdbm ipv6 ncurses readline ssl -bootstrap -build -doc -nocxx -tk -ucs2" 0 kB 

Total size of downloads: 0 kB