anchor.diff:    src = fetchPyPi {
       package = "Sphinx";
       inherit version;
  -    sha256 = "049c48393909e4704a6ed4de76fd39c8622e165414660bfb767e981e7931c722";
  +    sha256 = "4f6b257bea61ee6454538dcdb9e8cf56470b4dc6c4f9f750de4aedc57557814f";
     };
   
     propagatedBuildInputs = [
  
positive.code:     snowballstemmer
    ];
  
    meta = with stdenv.lib; {
      maintainers = with maintainers; [
        wkennington
      ];
  
negative.code: }:
  
  let
    version = "1.5.3";
  in
  buildPythonPackage {
    name = "Sphinx-${version}";
  