anchor.diff:  , buildPythonPackage
   , fetchFromGitHub
   , pythonOlder
  +, cython
   , h5py
   , matplotlib
   , numpy
  
positive.code: 
    checkInputs = [
      pytestCheckHook
    ];
  
    postPatch = ''
  
negative.code:     sha256 = "1vwqyv215yf51j1278cn7l8mpqmy1grm9j7z3hxjlz4w65cff324";
    };
  
    nativeBuildInputs = [
      cython
    ];
  
    propagatedBuildInputs = [
      spglib
      numpy
  