anchor.diff:  buildPythonPackage rec {
     pname = "aplpy";
     version = "2.0.3";
  +  format = "pyproject";
   
     src = fetchPypi {
       pname = "APLpy";
       inherit version;
       sha256 = "239f3d83635ca4251536aeb577df7c60df77fc4d658097b92094719739aec3f3";
     };
  +
  +  patches = [ (fetchpatch {
  +      # Can be removed in next release after 2.0.3
  +      url = "https://github.com/aplpy/aplpy/pull/448.patch";
  +      sha256 = "1pnzh7ykjc8hwahzbzyryrzv5a8fddgd1bmzbhagkrn6lmvhhpvq";
  +      excludes = [ "tox.ini" "azure-pipelines.yml" ".circleci/config.yml" "MANIFEST.in" ".gitignore"
  +       "setup.cfg" "appveyor.yml" "readthedocs.yml" "CHANGES.rst" ".gitmodules" ".travis.yml" "astropy_helpers" ];
  +    })
  +  ];
   
     propagatedBuildInputs = [
       numpy
  
positive.code: { lib
  , buildPythonPackage
  , fetchPypi
  , numpy
  , astropy
  , astropy-helpers
  
negative.code:   ];
  
    nativeBuildInputs = [ astropy-helpers ];
    checkInputs = [ pytest pytest-astropy ];
  
    checkPhase = ''
      OPENMP_EXPECTED=0 pytest aplpy
    '';
  
    meta = with lib; {
  