anchor.diff: -{lib, fetchFromGitHub, pythonOlder, buildPythonPackage, gfortran, mock, xarray, wrapt, numpy, netcdf4, setuptools}:
  +{lib
  +, fetchFromGitHub
  +, pythonOlder
  +, buildPythonPackage
  +, gfortran
  +, xarray
  +, wrapt
  +, numpy
  +, netcdf4
  +, setuptools
  +, pythonOlder
  +}:
   
   buildPythonPackage rec {
     pname = "wrf-python";
     version = "1.3.3";
  +  format = "setuptools";
  +
  +  disabled = pythonOlder "3.7";
   
     src = fetchFromGitHub {
       owner = "NCAR";
       repo = "wrf-python";
       rev = version;
  -    sha256 = "sha256-+v4FEK0FVE0oAIb18XDTOInHKfxXyykb1ngk9Uxwf0c=";
  +    hash = "sha256-+v4FEK0FVE0oAIb18XDTOInHKfxXyykb1ngk9Uxwf0c=";
     };
   
     propagatedBuildInputs = [
  
positive.code: 
    checkInputs = [
      netcdf4
    ] ++ lib.optional (pythonOlder "3.3") mock;
  
    doCheck = true;
    checkPhase = ''
      runHook preCheck
      cd ./test/ci_tests
  
negative.code:     runHook postCheck
    '';
  
    pythonImportsCheck = [
      "wrf"
    ];
  
    meta = with lib; {
      description = "WRF postprocessing library for Python";
      homepage = "http://wrf-python.rtfd.org";
      license = licenses.asl20;
      maintainers = with maintainers; [ mhaselsteiner ];
    };
  }
  