anchor.diff:  
   
     zodburi = buildPythonPackage rec {
  -    name = "zodburi-2.0b1";
  +    name = "zodburi-2.0";
   
       src = fetchurl {
         url = "http://pypi.python.org/packages/source/z/zodburi/${name}.tar.gz";
  -      md5 = "52cc13c32ffe4ee7b5f5abc79f70f3c2";
  -    };
  -
  -    buildInputs = [ zodb3 mock ];
  +      md5 = "7876893829c2f784506c80d49f861b67";
  +    };
  +
  +    buildInputs = [ zodb mock ZEO ];
   
       meta = {
         maintainers = [ stdenv.lib.maintainers.iElectric ];
  +    };
  +  };
  +  
  +  ZEO = pythonPackages.buildPythonPackage rec {
  +    name = "ZEO-4.0.0";
  +
  +    propagatedBuildInputs = [ random2 zodb six transaction persistent zc_lockfile zconfig zdaemon zope_interface ];
  +
  +    src = fetchurl {
  +      url = "https://pypi.python.org/packages/source/Z/ZEO/${name}.tar.gz";
  +      md5 = "494d8320549185097ba4a6b6b76017d6";
  +    };
  +
  +    meta = with stdenv.lib; {
  +      homepage = https://pypi.python.org/pypi/ZEO;
  +    };
  +  };
  +  
  +  random2 = pythonPackages.buildPythonPackage rec {
  +    name = "random2-1.0.1";
  +
  +    src = fetchurl {
  +      url = "https://pypi.python.org/packages/source/r/random2/${name}.zip";
  +      md5 = "48a0a86fe00e447212d0095de8cf3e21";
       };
     };
   
   
     substanced = buildPythonPackage rec {
       # no release yet
  -    rev = "bd8822be62f0f356e4e44d5c614fe14d3fa08f45";
  +    rev = "089818bc61c3dc5eca023254e37a280b041ea8cc";
       name = "substanced-${rev}";
   
       src = fetchgit {
         inherit rev;
         url = "https://github.com/Pylons/substanced.git";
  -      sha256 = "eded6468563328af37a07aeb88ef81ed78ccaff2ab687cac34ad2b36e19abcb4";
  +      sha256 = "17s7sdvydw9a9d2d36c70lq962ryny3dv9nzdxqpfvwiry9iy3jx";
       };
   
       buildInputs = [ mock ];
  
positive.code:       platforms = stdenv.lib.platforms.all;
      };
    };
  
  
    deform_bootstrap = buildPythonPackage rec {
  
negative.code: 
    transaction = buildPythonPackage rec {
      name = "transaction-${version}";
      version = "1.4.3";
  
      src = fetchurl {
        url = "http://pypi.python.org/packages/source/t/transaction/${name}.tar.gz";
        md5 = "b4ca5983c9e3a0808ff5ff7648092c76";
      };
  
      propagatedBuildInputs = [ zope_interface ];
  