python-updater -p stops processing if it cannot find an ebuild for an installed packages like emerge: there are no ebuilds to satisfy "dev-python/Forthon:0". Here, this is due to the fact that I make different overlays visible at different times. It would be nice if there were an option to keep python-updater going just printing a warning about the missing ebuild file. Thanks for considering this, Helmut.
removed from the tree