anchor.diff:  , launchpadlib
   , testtools
   , pythonOlder
  +, installShellFiles
   }:
   
   buildPythonPackage rec {
  
positive.code:   # symlink for bazaar compatibility
    postInstall = ''
      ln -s "$out/bin/brz" "$out/bin/bzr"
    '';
  
    pythonImportsCheck = [ "breezy" ];
  
negative.code:     inherit pname version;
      sha256 = "sha256-GHpuRSCN0F2BdQc2cgyDcQz0gJT1R+xAgcVxJZVZpNU=";
    };
  
    nativeBuildInputs = [ installShellFiles ];
  
    propagatedBuildInputs = [
      configobj
  