anchor.diff:      sha256 = "1x0prlldkgg0hxmya4m5h3k3c872wr0jylmzpr3m04mk339yiw0c";
     };
   
  -  propagatedBuildInputs = with pythonPackages; [
  +  propagatedBuildInputs = with python2Packages; [
       ConfigArgParse
       acme
       configobj
  
positive.code: { stdenv, pythonPackages, fetchFromGitHub, dialog }:
  
  pythonPackages.buildPythonApplication rec {
    name = "certbot-${version}";
    version = "0.6.0";
  
  
negative.code:     zope_component
      zope_interface
    ];
    buildInputs = [ dialog ] ++ (with python2Packages; [ nose mock gnureadline ]);
  
    patchPhase = ''
      substituteInPlace certbot/notify.py --replace "/usr/sbin/sendmail" "/var/setuid-wrappers/sendmail"
  