anchor.diff:      description = "TensorFlow helps the tensors flow";
       homepage = http://tensorflow.org;
       license = licenses.asl20;
  +    maintainers = with maintainers; [ jpbernardy ];
       platforms = with platforms; if cudaSupport then linux else linux ++ darwin;
     };
   }
  
positive.code: 
  buildPythonPackage rec {
    pname = "tensorflow";
    version = "1.0.0";
    name = "${pname}-${version}";
    format = "wheel";
    disabled = ! (isPy35 || isPy27);
  
negative.code:     );
  
    propagatedBuildInputs = with stdenv.lib;
      [ numpy six protobuf3_2 swig werkzeug mock ]
      ++ optionals cudaSupport [ cudatoolkit cudnn gcc49 ];
  
    # Note that we need to run *after* the fixup phase because the
  