def getParentPath(path):
    """Get the parent path from C{path}.

    @param path: A fully-qualified C{unicode} path.
    @return: The C{unicode} parent path or C{None} if C{path} represents a
        root-level entity.
    """
    unpackedPath = path.rsplit(u'/', 1)
    return None if len(unpackedPath) == 1 else unpackedPath[0]