s to and from the container will not result in

        dangling references (will not crash Python).

      </li>

      <li>

        Support slice indexes.

      </li>

      <li>

        Accept Python container arguments (e.g. lists, tuples) wherever

        appropriate.

      </li>

      <li>

        Allow for extensibility through re-definable policy classes.

      </li>

      <li>

        Provide predefined support for the most common STL and STL like

        indexable contain