anchor.diff:      owner = "mdz";
       repo = pname;
       rev = "v${version}";
  -    sha256 = "sha256-EoZn5yxj18hi4oEMuUcB5UN2xQFkLbSG/awp+Qh029E=";
  +    sha256 = "sha256-dAwOi1hhjGhBGKEp5u3qW5WL1GLHBFac0drIc1Zk6ok=";
     };
   
     propagatedBuildInputs = [
  
positive.code:     pytestCheckHook
    ];
  
    postPatch = ''
      substituteInPlace setup.py \
        --replace "aiohttp~=3.7.3" "aiohttp>=3.7.4,<4"
    '';
  
    pythonImportsCheck = [
      "smarttub"
    ];
  
negative.code: 
  buildPythonPackage rec {
    pname = "python-smarttub";
    version = "0.0.28";
    format = "setuptools";
  
    disabled = pythonOlder "3.8";
  