localhost ~ # python-updater -i
 * Starting Python Updater from 2.4 to 2.5 :
 * Searching for packages with files in /usr/lib/python2.4 /usr/lib32/python2.4 /usr/lib64/python2.4 ..
 * Adding to list: net-fs/samba:0
 * Adding to list: media-libs/libgpod:0
 * Adding to list: media-libs/lcms:0
 * Adding to list: media-libs/ming:0

localhost ~ # python-updater -i  -p
 * Starting Python Updater from 2.4 to 2.5 :
 * Searching for packages with files in /usr/lib/python2.4 /usr/lib32/python2.4 /usr/lib64/python2.4 ..
 * Adding to list: net-fs/samba:0
 * Adding to list: media-libs/libgpod:0
 * Adding to list: media-libs/lcms:0
 * Adding to list: media-libs/ming:0
/usr/sbin/python-updater: line 196: /var/db/pkg/sys-kernel/linux-sabayon-2.6.22/SLOT: No such file or directory
 * Adding to list: net-p2p/deluge:0
 * Adding to list: dev-util/portatosourceview:0
 * Adding to list: dev-java/java-config:0
 * Adding to list: dev-java/java-config:2
 * Adding to list (manually): x11-libs/vte:0
 * Adding to list: sys-libs/libcap:0
 * Adding to list: dev-python/dbus-python:0
 * Adding to list: dev-python/pyopenssl:0
 * Adding to list: dev-python/pyxdg:0
 * Adding to list: dev-python/notify-python:0
 * Adding to list: dev-python/pyopengl:0
 * Adding to list: dev-python/pygobject:2
 * Adding to list: dev-python/gnome-python:2
 * Adding to list: dev-python/pyxf86config:0
 * Adding to list: dev-python/fpconst:0
 * Adding to list: dev-python/lxml:0
 * Adding to list: dev-python/pycairo:0
 * Adding to list: dev-python/pyorbit:0
 * Adding to list: dev-python/pygtk:2
 * Adding to list: dev-python/python-fchksum:0
 * Adding to list: dev-python/eyeD3:0
 * Adding to list: dev-python/pygtkglext:0
 * Adding to list: dev-python/python-musicbrainz2:0
 * Adding to list: dev-python/pyparted:0
 * Adding to list: dev-python/configobj:0
 * Adding to list: dev-python/pycrypto:0
 * Adding to list: gnome-extra/libgsf:0
 * Adding to list: net-wireless/libbtctl:0
 * Adding to list: dev-libs/libxml2:2
 * Adding to list (manually): dev-libs/boost:0
 * Adding to list: dev-libs/libxslt:0
 * Adding to list: app-mobilephone/obexftp:0
         * Adding to list: net-dns/avahi:0
 * Adding to list: app-portage/portato:0
/usr/sbin/python-updater: line 196: /var/db/pkg/x11-proto/glproto-1.4.6_alpha20060317/SLOT: No such file or directory

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

Calculating dependencies -
!!! All ebuilds that could satisfy "dev-util/portatosourceview:0" have been masked.
!!! One of the following masked packages is required to complete your request:
- dev-util/portatosourceview-2.16.1 (masked by: )

For more information, see MASKED PACKAGES section in the emerge man page or
refer to the Gentoo Handbook.