import asyncio
import socket

ADDR = ('10.0.2.1', 22)


async def test(loop):
    s = socket.socket(socket.AF_INET,
                      socket.SOCK_STREAM)
    s.setblocking(False)
    try:
        with s:
            # Without 'wait_for' or 'timeout=None', it shows
            #
            #   Fail: [Errorno 10060] Connect call failed ('10.0.2.1', 22)
            #
            # await asyncio.wait_for(
            #     loop.sock_connect(s, ADDR),
            #     timeout=None,
            #     loop=loop,
            # )

            # With 'timeout', it raises
            #
            #   Traceback (most recent call last):
            #     File "C:\Users\alisue/test.py", line 41, in <module>
            #       loop.run_until_complete(test(loop))
            #     File "C:\Python36\lib\asyncio\base_events.py", line 454, in run_until_complete
            #       self.run_forever()
            #     File "C:\Python36\lib\asyncio\base_events.py", line 421, in run_forever
            #       self._run_once()
            #     File "C:\Python36\lib\asyncio\base_events.py", line 1395, in _run_once
            #       event_list = self._selector.select(timeout)
            #     File "C:\Python36\lib\selectors.py", line 323, in select
            #       r, w, _ = self._select(self._readers, self._writers, [], timeout)
            #     File "C:\Python36\lib\selectors.py", line 314, in _select
            #       r, w, x = select.select(r, w, w, timeout)
            #   OSError: [WinError 10038] ...........
            #
            await asyncio.wait_for(
                loop.sock_connect(s, ADDR),
                timeout=3,
                loop=loop,
            )

    except Exception as e:
        print('Fail: %s' % e)
    else:
        print('Success')


if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    loop.run_until_complete(test(loop))