anchor.diff:  
   buildPythonPackage rec {
     pname = "pypoolstation";
  -  version = "0.4.0";
  +  version = "0.4.1";
     format = "pyproject";
   
     disabled = pythonOlder "3.7";
  
positive.code:   # Project has no tests
    doCheck = false;
  
    pythonImportsCheck = [ "pypoolstation" ];
  
    meta = with lib; {
      description = "Python library to interact the the Poolstation platform";
  
negative.code:   src = fetchPypi {
      pname = "PyPoolstation";
      inherit version;
      sha256 = "sha256-GsEYlaoitHS2cOBHtgwhlREcps4q2ObnWywvCSak0NY=";
    };
  
    nativeBuildInputs = [
  