anchor.diff:      fastrlock
       numpy
       six
  +    setuptools
       wheel
     ];
   
     # In python3, test was failed...
     doCheck = !isPy3k;
  +
  +  enableParallelBuilding = true;
   
     meta = with stdenv.lib; {
       description = "A NumPy-compatible matrix library accelerated by CUDA";
  
positive.code:     mock
    ];
  
    propagatedBuildInputs = [
      cudatoolkit
      cudnn
  
negative.code: { stdenv, buildPythonPackage
  , fetchPypi, isPy3k, linuxPackages
  , fastrlock, numpy, six, wheel, pytest, mock, setuptools
  , cudatoolkit, cudnn, nccl
  }:
  
  