def _reverse_path(path):
    path_parts = path.split(_PATH_CELL_SEP)
    path_parts.reverse()
    return _PATH_CELL_SEP.join(path_parts)
Reverse a path.  Used for sending responses upstream.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/cells/messaging.py/_reverse_path