anchor.diff:  
   python3.pkgs.buildPythonApplication rec {
     pname = "dmarc-metrics-exporter";
  -  version = "0.6.0";
  +  version = "0.6.1";
   
     disabled = python3.pythonOlder "3.7";
   
  
positive.code: 
    src = python3.pkgs.fetchPypi {
      inherit pname version;
      sha256 = "70f39b373ead42acb8caf56040f7ebf13ab67aea505511025c09ecf4560f8b1b";
    };
  
    postPatch = ''
      substituteInPlace pyproject.toml \
        --replace '"^' '">='
    '';
  
  
negative.code:     typing-extensions
      uvicorn
      xsdata
    ]
    ++ uvicorn.optional-dependencies.standard;
  
    checkInputs = with python3.pkgs; [
      aiohttp
  