python3Packages.subliminal: readd again

pkgs/development/python-modules/subliminal/default.nix

@@ -1,7 +1,6 @@
 { lib
 , fetchPypi
 , buildPythonPackage
-, isPy3k
 , guessit
 , babelfish
 , enzyme
@@ -16,7 +15,6 @@
 , appdirs
 , rarfile
 , pytz
-, futures
 , sympy
 , vcrpy
 , pytest
@@ -38,7 +36,7 @@ buildPythonPackage rec {
     guessit babelfish enzyme beautifulsoup4 requests
     click dogpile_cache stevedore chardet pysrt six
     appdirs rarfile pytz
-  ] ++ lib.optional (!isPy3k) futures;
+  ];
 
   checkInputs = [
     sympy vcrpy pytest pytest-flakes
@@ -47,6 +45,7 @@ buildPythonPackage rec {
 
   # https://github.com/Diaoul/subliminal/pull/963
   doCheck = false;
+  pythonImportsCheck = [ "subliminal" ];
 
   meta = with lib; {
     homepage = "https://github.com/Diaoul/subliminal";