anchor.diff:      license = lib.licenses.gpl3;
       maintainers = [ lib.maintainers.exfalso ];
     };
  -
  -  buildInputs = [ python3 ];
  -
  -  installPhase = ''
  -    install -vD subdl $out/bin/subdl
  -  '';
   }
  
positive.code: 
  stdenv.mkDerivation {
    pname = "subdl";
    version = "0.0pre.2017.11.06";
  
    src = fetchFromGitHub {
      owner = "alexanderwink";
  
negative.code:     sha256 = "0kmk5ck1j49q4ww0lvas2767kwnzhkq0vdwkmjypdx5zkxz73fn8";
    };
  
    buildInputs = [ python3 ];
  
    installPhase = ''
      install -vD subdl $out/bin/subdl
    '';
  
    meta = {
      homepage = "https://github.com/alexanderwink/subdl";
      description = "A command-line tool to download subtitles from opensubtitles.org";
  