poll.poll([timeout]) Polls the set of registered file descriptors, and returns a possibly-empty list containing (fd, event)

exception asyncio.QueueEmpty Exception raised when the get_nowait() method is called on a Queue object

devpoll.closed True if the polling object is closed.

release() Release a semaphore, incrementing the internal counter by one. When it was zero on entry and another coroutine is

coroutine wait() Wait for child process to terminate. Set and return returncode attribute. This

epoll.register(fd[, eventmask]) Register a fd descriptor with the epoll object.

coroutine asyncio.create_subprocess_exec(*args, stdin=None, stdout=None, stderr=None, loop=None, limit=None, **kwds) Create

AbstractEventLoop.remove_reader(fd) Stop watching the file descriptor for read availability.

new_event_loop() Create and return a new event loop object according to this policy’s rules. If

abstractmethod select(timeout=None) Wait until some registered file objects become ready, or the timeout expires.