anchor.diff:        from the command-line and from MUAs such as Mutt.
         It can be used from Mutt the same way as abook.
       '';
  -    homepage    = "https://pypi.python.org/pypi/goobook";
  -    changelog   = "https://gitlab.com/goobook/goobook/-/blob/${version}/CHANGES.rst";
  -    license     = licenses.gpl3;
  +    homepage = "https://pypi.org/project/goobook/";
  +    changelog = "https://gitlab.com/goobook/goobook/-/blob/${version}/CHANGES.rst";
  +    license = licenses.gpl3;
       maintainers = with maintainers; [ primeos ];
  -    platforms   = platforms.unix;
     };
   }
  
positive.code: { lib, buildPythonPackage, fetchPypi, isPy3k
  , docutils, installShellFiles
  , google-api-python-client, simplejson, oauth2client, setuptools, xdg
  }:
  
  buildPythonPackage rec {
    pname = "goobook";
    version = "3.5.2";
    disabled = !isPy3k;
  
    src = fetchPypi {
      inherit pname version;
      sha256 = "sha256-i24Hh10iXFUiWVgokMs7f8ZpIVN/ZEF421tfa2ByQ4c=";
    };
  
    nativeBuildInputs = [ docutils installShellFiles ];
    propagatedBuildInputs = [
      google-api-python-client simplejson oauth2client setuptools xdg
    ];
  
    postInstall = ''
  
negative.code:     installManPage goobook.1
    '';
  
    # has no tests
    doCheck = false;
  
    pythonImportsCheck = [ "goobook" ];
  