set_write_buffer_limits(high=None, low=None) Set the high- and low-water limits for write flow control.

AbstractEventLoop.add_writer(fd, callback, *args) Start watching the file descriptor for write availability and then call the

asyncio.gather(*coros_or_futures, loop=None, return_exceptions=False) Return a future aggregating results from the given coroutine

devpoll.unregister(fd) Remove a file descriptor being tracked by a polling object. Just like the register() method

class asyncio.BoundedSemaphore(value=1, *, loop=None) A bounded semaphore implementation. Inherit from Semaphore

abstractmethod get_map() Return a mapping of file objects to selector keys. This returns a

Asynchronous programming is different than classical “sequential” programming. This page lists common traps and explains how to avoid them. 1

cancel() Cancel the future and schedule callbacks. If the future is already done or cancelled

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

class asyncio.ReadTransport Interface for read-only transports.