anchor.diff:    # error: (6, "Couldn't resolve host 'h.wrttn.me'")
     doCheck = false;
   
  -  buildInputs = [ pkgs.curl simplejson unittest2 nose ];
  +  nativeBuildInputs = [ pkgs.curl.dev ];
  +  buildInputs = [ simplejson unittest2 nose ];
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       homepage = https://pypi.python.org/pypi/pycurl2;
       description = "A fork from original PycURL library that no maintained from 7.19.0";
       license = licenses.mit;
  
positive.code:   version = "7.20.0";
    disabled = isPy3k;
  
    src = fetchgit {
      url = "https://github.com/Lispython/pycurl.git";
      rev = "0f00109950b883d680bd85dc6e8a9c731a7d0d13";
      sha256 = "1qmw3cm93kxj94s71a8db9lwv2cxmr2wjv7kp1r8zildwdzhaw7j";
    };
  
negative.code: { lib, buildPythonPackage, fetchFromGitHub
  , isPy3k
  , simplejson
  , unittest2
  