anchor.diff:  { stdenv
   , buildPythonPackage
   , fetchPyPi
  +, lib
   
   , cffi
   , libsodium
  
positive.code:     inherit version;
    };
  
    meta = with stdenv.lib; {
      maintainers = with maintainers; [
        wkennington
      ];
  
negative.code:   src = fetchPyPi {
      package = "PyNaCl";
      inherit version;
      sha256 = "32f52b754abf07c319c04ce16905109cab44b0e7f7c79497431d3b2000f8af8c";
    };
  
    propagatedBuildInputs = [
  