anchor.diff:      requests
       packaging
       dparse
  +    ruamel-yaml
     ];
   
     checkInputs = [
  
positive.code:   meta = with lib; {
      description = "Checks installed dependencies for known vulnerabilities";
      homepage = "https://github.com/pyupio/safety";
      license = licenses.mit;
      maintainers = with maintainers; [ thomasdesr dotlambda ];
    };
  
negative.code: 
    # Disable tests depending on online services
    disabledTests = [
      "test_announcements_if_is_not_tty"
      "test_check_live"
      "test_check_live_cached"
    ];
  