anchor.diff:  { lib, stdenv, buildPythonApplication, fetchFromGitHub, pythonOlder,
     attrs, aiohttp, appdirs, click, keyring, Logbook, peewee, janus,
     prompt-toolkit, matrix-nio, dbus-python, pydbus, notify2, pygobject3,
  -  setuptools, fetchpatch, installShellFiles,
  +  setuptools, installShellFiles,
   
     pytest, faker, pytest-aiohttp, aioresponses,
   
  
positive.code:     owner = "matrix-org";
      repo = pname;
      rev = version;
      sha256 = "11dfv5b2slqybisq6npmrqxrzslh4bjs4093vrc05s94046d9d9n";
    };
  
    patches = [
      # accept newer matrix-nio versions
      (fetchpatch {
        url = "https://github.com/matrix-org/pantalaimon/commit/73f68c76fb05037bd7fe71688ce39eb1f526a385.patch";
        sha256 = "0wvqcfan8yp67p6khsqkynbkifksp2422b9jy511mvhpy51sqykl";
      })
    ];
  
    propagatedBuildInputs = [
      aiohttp
  
negative.code: 
  buildPythonApplication rec {
    pname = "pantalaimon";
    version = "0.10.2";
  
    disabled = pythonOlder "3.6";
  
  