anchor.diff:  
     osc = buildPythonPackage (rec {
       name = "osc-0.133+git";
  +    disabled = isPy3k;
   
       src = fetchgit {
         url = git://gitorious.org/opensuse/osc.git;
  
positive.code:     };
    });
  
    moinmoin = let ver="1.9.7"; in buildPythonPackage (rec {
      name = "moinmoin-${ver}";
  
      src = fetchurl {
        url = "http://static.moinmo.in/files/moin-${ver}.tar.gz";
  
negative.code: 
    pyro3 = buildPythonPackage (rec {
      name = "Pyro-3.16";
      disabled = isPy3k;
  
      src = fetchurl {
        url = "http://pypi.python.org/packages/source/P/Pyro/${name}.tar.gz";
  