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,
   
     pytest, faker, pytest-aiohttp, aioresponses,
   
  
positive.code:     matrix-nio
      peewee
      prompt_toolkit
    ] ++ lib.optional enableDbusUi [
        dbus-python
        notify2
  
negative.code: 
  buildPythonApplication rec {
    pname = "pantalaimon";
    version = "0.6.3";
  
    disabled = pythonOlder "3.6";
  
  