anchor.diff:    ARROW_TEST_DATA = lib.optionalString doCheck _arrow-cpp.ARROW_TEST_DATA;
   
     doCheck = true;
  +
     dontUseCmakeConfigure = true;
   
     preBuild = ''
  
positive.code: 
  buildPythonPackage rec {
    pname = "pyarrow";
    disabled = !isPy3k;
  
    inherit (_arrow-cpp) version src;
  
    sourceRoot = "apache-arrow-${version}/python";
  
    nativeBuildInputs = [ cmake cython pkg-config setuptools-scm ];
    propagatedBuildInputs = [ numpy six cloudpickle scipy fsspec cffi ];
    checkInputs = [
      hypothesis
      pandas
  
negative.code:     ulimit -n 1024
    '';
  
    pythonImportsCheck = [
      "pyarrow"
    ] ++ map (module: "pyarrow.${module}") ([
      "compute"
      "csv"
      "dataset"
  