anchor.diff:    };
   
   
  +  "beautifulsoup4-4.3.0" = self.buildPythonPackage {
  +    name = "beautifulsoup4-4.3.0";
  +    src = fetchurl {
  +        url = "https://pypi.python.org/packages/source/b/beautifulsoup4/beautifulsoup4-4.3.0.tar.gz";
  +        md5 = "8341b12402d942661bbfcc9f35420529";
  +    };
  +    doCheck = false;
  +    buildInputs = [  ];
  +    propagatedBuildInputs = [  ];
  +    installCommand = ''easy_install --always-unzip --prefix="$out" .'';
  +
  +    meta = {
  +      description = ''
  +        Improvements to the lxml tree builder.
  +        '';
  +      homepage = "http://www.crummy.com/software/BeautifulSoup/bs4/";
  +      license = "MIT";
  +    };
  +  };
  +
  +
     "nose-1.3.0" = self.buildPythonPackage {
       name = "nose-1.3.0";
       src = fetchurl {
  
positive.code:         '';
        homepage = "http://pypi.python.org/pypi/plone.indexer";
        license = "BSD";
      };
    };
  
  
    "waitress-0.8.5" = self.buildPythonPackage {
      name = "waitress-0.8.5";
      src = fetchurl {
          url = "https://pypi.python.org/packages/source/w/waitress/waitress-0.8.5.tar.gz";
          md5 = "7a3094d812c0dffb948d1334ef5fd56f";
      };
      doCheck = false;
      buildInputs = [  ];
      propagatedBuildInputs = [ self.setuptools ];
      installCommand = ''easy_install --always-unzip --prefix="$out" .'';
  
      meta = {
        description = ''
          Waitress WSGI server
          '';
        homepage = "https://github.com/Pylons/waitress";
        license = "ZPL 2.1";
      };
    };
  
  
negative.code:   };
  
  
    "unittest2-0.5.1" = self.buildPythonPackage {
      name = "unittest2-0.5.1";
      src = fetchurl {
  