For some reason app-text/paperwork has wxpython as a dependency. But I can't find anything in the sources (of version 0.2.2 at least) dealing with wx, and also it is not listed anywhere else as a dependency. Solution: Remove dev-python/wxpython from RDEPEND.
Thanks for the report! I am not sure where this one came from, I guess probably some cut-and-paste error that slipped in the dev-python/* deps... Anyway, fixed in all current ebuilds!