anchor.diff:    meta = with lib; {
       description = "Discover, connect and control Gree based minisplit systems";
       homepage = "https://github.com/cmroche/greeclimate";
  +    changelog = "https://github.com/cmroche/greeclimate/blob/${src.rev}/CHANGELOG.md";
       license = licenses.gpl3Only;
       maintainers = with maintainers; [ dotlambda ];
     };
  
positive.code:     owner = "cmroche";
      repo = "greeclimate";
      rev = "refs/tags/v${version}";
      hash = "sha256-TFsuzw9twhoGrgOnTNSmYWqsUW4oqY+SGvrvPUT4tZY=";
    };
  
    propagatedBuildInputs = [
  
negative.code: 
  buildPythonPackage rec {
    pname = "greeclimate";
    version = "1.2.0";
    format = "setuptools";
  
    disabled = pythonOlder "3.6";
  