anchor.diff:  buildPythonPackage rec {
     pname = "webthing";
     version = "0.15.0";
  +  format = "setuptools";
  +
  +  disabled = pythonOlder "3.6";
   
     src = fetchFromGitHub {
       owner = "WebThingsIO";
       repo = "webthing-python";
       rev = "v${version}";
  -    sha256 = "06264rwchy4qmbn7lv7m00qg864y7aw3rngcqqcr9nvaqz4rb0fg";
  +    hash = "sha256-z4GVycdq25QZxuzZPLg6nhj0MAD1bHrsqph4yHgmRhg=";
     };
   
     propagatedBuildInputs = [
  
positive.code: , ifaddr
  , jsonschema
  , pyee
  , tornado
  , zeroconf
  }:
  
negative.code:     zeroconf
    ];
  
    # No tests are present
    doCheck = false;
  
    pythonImportsCheck = [
      "webthing"
    ];
  
    meta = with lib; {
      description = "Python implementation of a Web Thing server";
  