anchor.diff:    src = fetchPyPi {
       package = "fasteners";
       inherit version;
  -    sha256 = "427c76773fe036ddfa41e57d89086ea03111bbac57c55fc55f3006d027107e18";
  +    sha256 = "3a176da6b70df9bb88498e1a18a9e4a8579ed5b9141207762368a1017bf8f5ef";
     };
   
     propagatedBuildInputs = [
  
positive.code: { stdenv
  , buildPythonPackage
  , fetchPyPi
  
  , monotonic
  , six
  }:
  
  let
    version = "0.14.1";
  in
  buildPythonPackage {
    name = "fasteners-${version}";
  
negative.code:     six
    ];
  
    meta = with lib; {
      maintainers = with maintainers; [
        wkennington
      ];
  