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From: gansteed <gansteed@gmail.com>
Newsgroups: comp.lang.python
Subject: why not define a EVENT_ERROR in selectors module?
Date: Mon, 29 Feb 2016 10:26:56 +0800
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Xref: csiph.com comp.lang.python:103695

as the title:

    I'm reading the source code of selectors, I got this:

# generic events, that must be mapped to implementation-specific ones
EVENT_READ = (1 << 0)
EVENT_WRITE = (1 << 1)

    maybe we can add definitions for EVENT_ERROR like this:

# Choose the best implementation, roughly:
#    epoll|kqueue|devpoll > poll > select.
# select() also can't accept a FD > FD_SETSIZE (usually around 1024)
if 'KqueueSelector' in globals():
    DefaultSelector = KqueueSelector
    EVENT_ERROR = EVENT_WRITE << 1
elif 'EpollSelector' in globals():
    ...
elif ...:
    ...