[Python-Dev] Confirming status of new modules in 3.4 (original) (raw)

Giampaolo Rodola' g.rodola at gmail.com
Sat Mar 15 12:02:47 CET 2014

On Sat, Mar 15, 2014 at 3:17 AM, Guido van Rossum <guido at python.org> wrote:

I don't think so. asyncio depends on selectors but not vice versa. The selectors module was not part of PEP 3156. It is solid and I don't see any reason why it should get a reprieve from the usual strict backwards compatibility standards.

One part which can be improved is that right now the selectors module doesn't take advance of e/poll()'s modify() method: instead it just unregister() and register() the fd every time, which is of course considerably slower (there's also a TODO in the code about this). I guess that can be fixed later in a safely manner.

Another concern I have is that we should probably rename self._epoll, self._select, self._kqueue to just "self._poller": that would make subclassing easier (see patch in issue http://bugs.python.org/issue18931) and would provide a unified interface for those users who want to reference the underlying poller object for some reason.

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