anchor.diff:    };
   
     pylint = buildPythonPackage rec {
  -    name = "pylint-0.25.1";
  -
  -    src = fetchurl {
  -      url = "http://pypi.python.org/packages/source/p/pylint/${name}.tar.gz";
  -      md5 = "728bbc2b339bc3749af013709a7f87a5";
  -    };
  -    propagatedBuildInputs = [ astng ];
  +    name = "pylint-0.23.0";
  +
  +    src = fetchurl {
  +      url = "http://ftp.logilab.org/pub/pylint/${name}.tar.gz";
  +      sha256 = "07091avcc2b374i5f3blszmawjcin8xssjfryz91qbxybb8r7c6d";
  +    };
  +    propagatedBuildInputs = [astng];
     };
   
     pymacs = pkgs.stdenv.mkDerivation rec {
  
positive.code:     };
    });
  
    # XXX: currently fails to build
    pysvn = pkgs.stdenv.mkDerivation {
      name = "pysvn-1.7.5";
  
      src = fetchurl {
        url = "http://pysvn.barrys-emacs.org/source_kits/pysvn-1.7.5.tar.gz";
        sha256 = "cb9664de62a85adba8471eda1894c3831d3400131feeea0e7b9cdd7c15d671ef";
      };
  
      buildInputs = [ python pkgs.subversion pkgs.apr pkgs.aprutil pkgs.expat pkgs.neon pkgs.openssl ]
  
negative.code:       md5 = "ce75c7c3c86741175a84456cc5bd531e";
      };
  
      buildInputs = [ ];
  
      propagatedBuildInputs = [ ];
  
      meta = {
        homepage = http://pypi.python.org/pypi/enum/;
        description = "Robust enumerated type support in Python.";
  