anchor.diff:  { lib, python3Packages, fetchFromGitHub }:
   
  -with python3Packages;
  +let
  +  inherit (python3Packages) buildPythonApplication pythonOlder;
   
  +in
   buildPythonApplication rec {
     pname = "pwgen-secure";
     version = "0.9.1";
  
positive.code:     sha256 = "15md5606hzy1xfhj2lxmc0nvynyrcs4vxa5jdi34kfm31rdklj28";
    };
  
    propagatedBuildInputs = [ docopt ];
  
    postInstall = ''
      install -Dm755 spwgen.py $out/bin/spwgen
    '';
  
    # there are no checks
  
negative.code:     homepage = "https://github.com/mjmunger/pwgen_secure/";
      license = licenses.mit;
      maintainers = with maintainers; [ peterhoeg ];
      mainProgram = "spwgen";
    };
  }
  