anchor.diff: -
   { lib
   , aiohttp
   , async-timeout
  
positive.code: 
  buildPythonPackage rec {
    pname = "millheater";
    version = "0.8.0";
    disabled = pythonOlder "3.6";
  
    src = fetchFromGitHub {
      owner = "Danielhiversen";
      repo = "pymill";
      rev = version;
      sha256 = "sha256-PL9qP6SKE8gsBUdfrPf9Fs+vU/lkpOjmkvq3cWw3Uak=";
    };
  
    propagatedBuildInputs = [
  
negative.code:   # Project has no tests
    doCheck = false;
  
    pythonImportsCheck = [
      "mill"
    ];
  
    meta = with lib; {
      description = "Python library for Mill heater devices";
  