The following debian patch could be used to allow this to work with wxpython3 https://anonscm.debian.org/viewvc/debian-science/packages/bibus/trunk/debian/patches/wxpy30-changes.patch?view=markup Thanks
[master 09c4673dc7d] app-text/bibus: Use wxpython-3.0 with Debian patch (#601094) 2 files changed, 244 insertions(+) create mode 100644 app-text/bibus/bibus-1.5.2-r3.ebuild create mode 100644 app-text/bibus/files/bibus-1.5.2-wx30.patch