[gentoo-user] EAPI 4-python

[Fox]

Hello,
I am trying to install an ebuild that used EAPI=4-python getting the error:
API of python.eclass in EAPI="4-python" not established

I googled the problem but there is not much to read (or at least I could 
not find much) and what is there is old. So I wonder what is the problem 
with this and if there is a way to use it as there are many ebiulds 
(maybe only in overlays, I am not sure) that use it.

Quim