[issue16853] add a Selector to the select module

[Giampaolo Rodola']

Giampaolo Rodola' added the comment:

> The actual error (which may be ECONNRESET, but also EBADF, ENOBUFS...) will be raised
> upon the next call to read()/write(), or can be retrieved through
getsockopt(SO_ERROR).

Mmmm... I would be tempted to think the same but the fact that both Tornado and Twisted distinguish between READ and ERROR events is suspicious.

> then we probably also want to suppress POLLPRI|EPOLLPRI, no?

Yes.

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<http://bugs.python.org/issue16853>
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