Guido van Rossum added the comment: The word coroutine has a more specific meaning though (and we have iscoroutine*() inspection functions to check for it). Maybe we should switch all these to "awaitable"? Also note that in proactor_events.py, sock_connect() is *not* a coroutine. In fact I'm not sure what it is -- it calls self._proactor.connect() which appears to return None from the code in windows_events.py. That's presumably a separate bug. ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue29344> _______________________________________