games-strategy/wesnoth has optional python support as a configure parameter. If enabled, it builds python_ai AI module. This currently is disabled by default, and could be trivially implemented as a useflag.
Created attachment 129107 [details, diff] Patch to add python useflag to games-strategy/wesnoth-1.2.5
yes, we don't support it since it's experimental in the 1.2 series. we'll pick it up in the next stable release.