anchor.diff:      license = lib.licenses.bsd3;
       platforms = lib.platforms.all;
       maintainers = with lib.maintainers; [ smaret ];
  -    broken = true;
     };
   }
   
  -
  
positive.code: { lib
  , fetchPypi
  , buildPythonPackage
  , astropy
  , radio_beam
  
negative.code: 
  buildPythonPackage rec {
    pname = "spectral-cube";
    version = "0.4.5";
  
    # Fetch from GitHub instead of PyPi, as 0.4.5 isn't available in PyPi
    src = fetchFromGitHub {
      owner = "radio-astro-tools";
      repo = pname;
      rev = "v${version}";
      sha256 = "1xc1m6vpl0bm600fx9vypa7zcvwg7yvhgn0w89y6v9d1vl0qcs7z";
    };
  
    propagatedBuildInputs = [ astropy radio_beam ];
  