anchor.diff:    meta = {
       description = "Export Prometheus metrics from DMARC reports";
       homepage = "https://github.com/jgosmann/dmarc-metrics-exporter";
  +    changelog = "https://github.com/jgosmann/dmarc-metrics-exporter/blob/v${version}/CHANGELOG.rst";
       license = lib.licenses.mit;
       maintainers = with lib.maintainers; [ ma27 ];
     };
  
positive.code: 
    src = python3.pkgs.fetchPypi {
      inherit pname version;
      sha256 = "22ec361f9a4c86abefbfab541f588597e21bf4fbedf2911f230e560b2ec3503a";
    };
  
    patches = [
      # https://github.com/jgosmann/dmarc-metrics-exporter/pull/23
      (fetchpatch {
        url = "https://github.com/jgosmann/dmarc-metrics-exporter/commit/3fe401f5dfb9e0304601a2a89ac987ff853b7cba.patch";
        hash = "sha256-MjVLlFQMp2r3AhBMu1lEmRm0Y2H9FdvCfPgAK5kvwWE=";
      })
    ];
  
    postPatch = ''
      substituteInPlace pyproject.toml \
        --replace 'python = "^3.7,<3.10"' 'python = "^3.7,<3.11"' \
        --replace poetry.masonry.api poetry.core.masonry.api \
        --replace '"^' '">='
    '';
  
  
negative.code: { lib
  , python3
  }:
  
  python3.pkgs.buildPythonApplication rec {
    pname = "dmarc-metrics-exporter";
    version = "0.6.0";
  
    disabled = python3.pythonOlder "3.7";
  
  