[issue28724] Add method send_io, recv_io to the socket module.

[INADA Naoki]

INADA Naoki added the comment:

FYI, multiprocessing.reduction module has send_fds and recv_fds.

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nosy: +inada.naoki

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28724>
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