--- a/Lib/selectors.py 2018-06-27 00:39:50.000000000 +0100 +++ b/Lib/selectors.py 2018-10-28 17:39:46.027757518 +0100 @@ -599,9 +599,9 @@ # 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 -elif 'EpollSelector' in globals(): +#if 'KqueueSelector' in globals(): +# DefaultSelector = KqueueSelector +if 'EpollSelector' in globals(): DefaultSelector = EpollSelector elif 'DevpollSelector' in globals(): DefaultSelector = DevpollSelector