import asyncio

@asyncio.coroutine
def do_work():
    asyncio.sleep(0)
    return 1

@asyncio.coroutine
def main():
    while True:
        x = yield from asyncio.wait_for(do_work(), 3600)

loop = asyncio.get_event_loop()

x = asyncio.async(main())

def dummy():
    print('dummy')

loop.call_later(3000, dummy)

try:
    loop.run_forever()
except:
    pass
finally:
    loop.close()