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Code Issues Projects Releases Packages Wiki Activity Actions 9

GH-95913: Update what's new in 3.11 for asyncio (#97806)

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Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
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Guido van Rossum 2022-10-04 11:36:20 -07:00 • committed by GitHub
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Doc/whatsnew/3.11.rst
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@ -529,27 +529,51 @@ New Modules
Improved Modules
================
.. _whatsnew311-asyncio:
asyncio
-------
* Add raw datagram socket functions to the event loop:
:meth:`~asyncio.AbstractEventLoop.sock_sendto`,
:meth:`~asyncio.AbstractEventLoop.sock_recvfrom` and
:meth:`~asyncio.AbstractEventLoop.sock_recvfrom_into`.
(Contributed by Alex Grönholm in :issue:`46805`.)
* Add :meth:`~asyncio.streams.StreamWriter.start_tls` method for upgrading
existing stream-based connections to TLS. (Contributed by Ian Good in
:issue:`34975`.)
* Add :class:`~asyncio.Barrier` class to the synchronization primitives of
the asyncio library. (Contributed by Yves Duprat and Andrew Svetlov in
:gh:`87518`.)
* Add :class:`~asyncio.TaskGroup` class,
* Added the :class:`~asyncio.TaskGroup` class,
an :ref:`asynchronous context manager <async-context-managers>`
holding a group of tasks that will wait for all of them upon exit.
(Contributed by Yury Seliganov and others.)
For new code this is recommended over using
:func:`~asyncio.create_task` and :func:`~asyncio.gather` directly.
(Contributed by Yury Selivanov and others in :gh:`90908`.)
* Added :func:`~asyncio.timeout`, an asynchronous context manager for
setting a timeout on asynchronous operations. For new code this is
recommended over using :func:`~asyncio.wait_for` directly.
(Contributed by Andrew Svetlov in :gh:`90927`.)
* Added the :class:`~asyncio.Runner` class, which exposes the machinery
used by :func:`~asyncio.run`.
(Contributed by Andrew Svetlov in :gh:`91218`.)
* Added the :class:`~asyncio.Barrier` class to the synchronization
primitives in the asyncio library, and the related
:exc:`~asyncio.BrokenBarrierError` exception.
(Contributed by Yves Duprat and Andrew Svetlov in :gh:`87518`.)
* Added keyword argument *all_errors* to :meth:`asyncio.loop.create_connection`
so that multiple connection errors can be raised as an :exc:`ExceptionGroup`.
* Added the :meth:`asyncio.StreamWriter.start_tls` method for
upgrading existing stream-based connections to TLS.
(Contributed by Ian Good in :issue:`34975`.)
* Added raw datagram socket functions to the event loop:
:meth:`~asyncio.loop.sock_sendto`,
:meth:`~asyncio.loop.sock_recvfrom` and
:meth:`~asyncio.loop.sock_recvfrom_into`.
These have implementations in :class:`~asyncio.SelectorEventLoop` and
:class:`~asyncio.ProactorEventLoop`.
(Contributed by Alex Grönholm in :issue:`46805`.)
* Added :meth:`~asyncio.Task.cancelling` and
:meth:`~asyncio.Task.uncancel` methods to :class:`~asyncio.Task`.
These are primarily intended for internal use,
notably by :class:`~asyncio.TaskGroup`.
contextlib
----------