anchor.diff:    propagatedBuildInputs = [
       duckdb
       sqlalchemy
  +  ];
  +
  +  preCheck = ''
  +    export HOME="$(mktemp -d)"
  +  '';
  +
  +  # this test tries to download the httpfs extension
  +  disabledTests = [
  +    "test_preload_extension"
     ];
   
     checkInputs = [
  
positive.code:   src = fetchFromGitHub {
      repo = "duckdb_engine";
      owner = "Mause";
      rev = "refs/tags/v${version}";
      hash = "sha256-6bR2pt7gUHZu4I7VmJgVsFT9u3/e4c9RAKHHlbX/Tyk=";
    };
  
    nativeBuildInputs = [
  
negative.code: 
  buildPythonPackage rec {
    pname = "duckdb-engine";
    version = "0.6.4";
    format = "pyproject";
  
    disabled = pythonOlder "3.7";
  