anchor.diff:      };
     });
   
  +  ropemacs = buildPythonPackage (rec {
  +    version = "0.6";
  +    name = "ropemacs-${version}";
  +
  +    src = fetchurl {
  +      url = "mirror://sourceforge/rope/${name}.tar.gz";
  +      sha256 = "1afqybmjn7fqkwx8y8kx1kfx181ix73cbq3a0d5n7ryjm7k1r0s4";
  +    };
  +
  +    doCheck = false;
  +    meta = with stdenv.lib; {
  +      description = "a plugin for performing python refactorings in emacs";
  +      homepage = http://rope.sf.net/ropemacs.html;
  +      maintainers = [ maintainers.goibhniu ];
  +      license = licenses.gpl2;
  +    };
  +  });
  +
     pysvn = pkgs.stdenv.mkDerivation {
       name = "pysvn-1.7.2";
   
  
positive.code:       homepage = http://www.darwinsys.com/file/;
      };
    };
    
    MySQL_python = buildPythonPackage {
      name = "MySQL-python-1.2.3";
      
      doCheck = false;
      
      src = fetchurl {
        url = mirror://sourceforge/mysql-python/MySQL-python-1.2.3.tar.gz;
        sha256 = "0vkyg9dmj29hzk7fy77f42p7bfj28skyzsjsjry4wqr3z6xnzrkx";
      };
      
      propagatedBuildInputs = [ pkgs.mysql pkgs.zlib nose ];
      
      meta = {
        description = "MySQL database binding for Python";
  
  
negative.code: 
    nose = buildPythonPackage {
      name = "nose-0.11.3";
  
      src = fetchurl {
        url = http://python-nose.googlecode.com/files/nose-0.11.3.tar.gz;
        sha256 = "1hl3lbwdfl2a64q3dxc73kbiks4iwx5cixlbavyryd8xdr7iziww";
      };
  
      meta = {
        description = "A unittest-based testing framework for python that makes writing and running tests easier";
      };
  