For some reason on Funtoo Linux emerging pykde4 fails (where the error occurs exactly is unclear to me, but I will give you the logs show you can find out). Here is my build log http://paste2.org/wt11sZEE.
emerge -pqv '=kde-apps/pykde4-4.14.3-r2::gentoo' returns:
Unable to find source-code formatter for language: shell. Available languages are: actionscript, ada, applescript, bash, c, c#, c++, cpp, css, erlang, go, groovy, haskell, html, java, javascript, js, json, lua, none, nyan, objc, perl, php, python, r, rainbow, ruby, scala, sh, sql, swift, visualbasic, xml, yaml
[ebuild N ] kde-apps/pykde4-4.14.3-r2 USE="-akonadi (-aqua) -debug -doc -examples {-test}" PYTHON_TARGETS="python2_7 python3_4 -python3_5"