anchor.diff:      owner = "tkdrob";
       repo = pname;
       rev = version;
  -    sha256 = "sha256-8xcKgsZ6buaQdrKD8Qn7jB5IlQ0NkR0nZGuFk+Dd8Q8=";
  +    sha256 = "sha256-AdoM+PcVoajxhnEfkyN9UuNufChu8XGmZDLNC3mjrps=";
     };
   
     propagatedBuildInputs = [
  
positive.code: { lib
  , aiohttp
  , buildPythonPackage
  , fetchFromGitHub
  , iso4217
  , pythonOlder
  , pytz
  }:
  
  buildPythonPackage rec {
    pname = "pyefergy";
    version = "0.1.5";
    format = "setuptools";
  
    disabled = pythonOlder "3.8";
  
negative.code:     pytz
    ];
  
    checkInputs = [
      aresponses
      pytest-asyncio
      pytestCheckHook
    ];
  
    pythonImportsCheck = [
      "pyefergy"
    ];
  
    meta = with lib; {
      description = "Python API library for Efergy energy meters";
  