Line 85 of enlightenment.eclass inherits removed python eclass: https://gitweb.gentoo.org/repo/gentoo.git/tree/eclass/enlightenment.eclass?id=61b861acd7b49083dab687e133f30f3331cb7480#n85
For the record: I've noticed that but the relevant switches are not used anywhere in ::gentoo.
It is gone.