TYPE FILE ET_DYN /var/tmp/portage/dev-games/crystalspace-1.2.1/image//usr/share/crystalspace-1.2/bindings/python/_cspace.so Seems like it installs Python bindings in /usr/share, but on the properness of that I'll leave Python team to speak.
If these Python modules are intended to be used by Python modules from other packages, then they should be installed to "$(python_get_sitedir)". Otherwise they could be installed into e.g. "/usr/lib/crystalspace/bindings/python".
in dev-games/crystalspace-1.4.0 python bindings are not more installed