anchor.diff:  , fetchPypi
   , asgiref
   , click
  +, importlib-metadata
   , itsdangerous
   , jinja2
   , python-dotenv
   , werkzeug
  -, setuptools
   , pytestCheckHook
  +, pythonOlder
   }:
   
   buildPythonPackage rec {
  
positive.code:     itsdangerous
      jinja2
      werkzeug
  
      # required for CLI subcommand autodiscovery
      # see: https://github.com/pallets/flask/blob/fdac8a5404e3e3a316568107a293f134707c75bb/src/flask/cli.py#L498
      setuptools
    ];
  
    checkInputs = [
      pytestCheckHook
  
negative.code:       Python web application frameworks.
      '';
      license = licenses.bsd3;
      maintainers = with maintainers; [ SuperSandro2000 ];
    };
  }
  