anchor.diff:    src =
       if channel != "head" then
         fetchurl {
  -        url = "http://download.deluge-torrent.org/source/deluge-${source.version}.tar.xz";
  +        url = "http://download.deluge-torrent.org/source/2.0/"
  +          + "deluge-${source.version}.tar.xz";
           inherit (source) sha256;
         }
       else
  -      fetchgit {
  +      fetchFromGitHub {
           version = source.fetchzipversion;
  -        url = "git://git.deluge-torrent.org/deluge";
  -        branchName = "develop";
  +        owner = "deluge-torrent";
  +        repo = "deluge";
           inherit (source) rev sha256;
         };
   
  
positive.code: let
    inherit (lib)
      makeSearchPath
      optionals
      optionalString;
  
    sources = {
      "stable" = {
        version = "1.3.15";
        sha256 = "a96405140e3cbc569e6e056165e289a5e9ec66e036c327f3912c73d049ccf92c";
      };
      "head" = {
        fetchzipversion = 6;
  
negative.code: { stdenv
  , buildPythonPackage
  , fetchFromGitHub
  ,  fetchurl
  , gettext
  , intltool
  , isPy3
  