Attached test.py hangs with the following output when run with PYTHONASYNCIODEBUG1= and -Wdefault.

DEBUG:asyncio:Using selector: EpollSelector
DEBUG:asyncio:run shell command 'sleep 2'
DEBUG:asyncio:process 'sleep 2' created: pid 13801
INFO:asyncio:run shell command 'sleep 2': <_UnixSubprocessTransport pid=13801 running>

After i Ctrl-C it, i see the following traceback (paths edited)

^CTraceback (most recent call last):
  File "/chetan/test.py", line 17, in <module>
    main()
  File "/chetan/test.py", line 12, in main
    result =loop.run_until_complete(sleepWithShell(loop))
  File "/Python-3.5.0b4-clang/lib/python3.5/asyncio/base_events.py", line 329, in run_until_complete
    self.run_forever()
  File "/Python-3.5.0b4-clang/lib/python3.5/asyncio/base_events.py", line 300, in run_forever
    self._run_once()
  File "/Python-3.5.0b4-clang/lib/python3.5/asyncio/base_events.py", line 1142, in _run_once
    event_list = self._selector.select(timeout)
  File "/Python-3.5.0b4-clang/lib/python3.5/selectors.py", line 432, in select
    fd_event_list = self._epoll.poll(timeout, max_ev)
KeyboardInterrupt
/Python-3.5.0b4-clang/lib/python3.5/asyncio/base_subprocess.py:117: ResourceWarning: unclosed transport <_UnixSubprocessTransport pid=13801 running>
/Python-3.5.0b4-clang/lib/python3.5/asyncio/base_events.py:384: ResourceWarning: unclosed event loop <_UnixSelectorEventLoop running=False closed=False debug=True>
DEBUG:asyncio:Close <_UnixSelectorEventLoop running=False closed=False debug=True>