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Tue Jan 27 00:58:42 CET 2009 · https://mail.python.org/pipermail/python-dev/2009-January/085507.html

Andrew Bennetts wrote:
> Daniel Stutzbach wrote:
> [...]
>> If you really need to communicate with multiple subprocesses (which so far has
>> not been suggested as a motivating example), then you can use select().
> 
> Not portably.  select() on windows only works on sockets.

In addition, select() is exactly what the linked recipe uses to
implement non-blocking I/O for subprocesses on non-Windows platforms.

I agree the actual use cases need to be better articulated in any RFE
that is actually posted, but a cleanly encapsulated approach to
non-blocking communication with subprocesses over stdin/out/err
certainly sounds like something that could reasonably be added to the
subprocess module.

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
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[Python-Dev] subprocess crossplatformness and async communication