Richard Oudkerk added the comment:

> Yes, but the problem is that between two epoll_wait() calls, the
> readiness of the FDs can have changed: and if that happens, you'll get
> the same list over and over.

If an fd *was* ready but isn't anymore then why would you want to know about 
it?  Trying to use the fd will fail with EAGAIN.

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue16873>
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