anchor.diff:    meta = with lib; {
       description = "Youtube synthesia video to midi conversion tool";
       homepage = src.meta.homepage;
  -    license = licenses.gpl3;
  +    license = licenses.gpl3Only;
       maintainers = [ ];
       platforms = platforms.linux;
     };
  
positive.code:     owner = "svsdval";
      repo = pname;
      rev = version;
      sha256 = "174ijn8bc306529scd23szvgx1apanm2qmwk4lwmi64rhkm6dapx";
    };
  
    propagatedBuildInputs = with pythonPackages; [ opencv3_ midiutil pygame pyopengl ];
  
negative.code:   });
  in pythonPackages.buildPythonApplication rec {
    pname = "video2midi";
    version = "0.4.6.5";
  
    format = "other";
  
  