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

Calculating dependencies  ........ done!
[blocks B     ] sys-apps/coldplug (is blocking sys-fs/udev-103)

[blocks B     ] <media-sound/esound-0.2.36-r2 (is blocking app-admin/eselect-esd-20060719)
[blocks B     ] <dev-python/pygtk-2.9 (is blocking dev-python/pygobject-2.12.3)