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gvanrossum merged 5 commits into from
Apr 20, 2023
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gh-98641: Task group vs gather #103644

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6c8e140
Added some clarificatory comments.
why-not-try-calmer Oct 25, 2022
a882de7
Addressing comments and taking onboard suggestions from reviewer.
why-not-try-calmer Oct 25, 2022
1b2172b
Trimmed down what was superfluous.
why-not-try-calmer Apr 20, 2023
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Syntax
why-not-try-calmer Apr 20, 2023
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why-not-try-calmer Apr 20, 2023
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Trimmed down what was superfluous.
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@why-not-try-calmer
why-not-try-calmer committed Apr 20, 2023
commit 1b2172b9f9b0831f7b1fac6b673cb7dcb0c4e301
9 changes: 3 additions & 6 deletions Doc/library/asyncio-task.rst
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Expand Up @@ -257,8 +257,8 @@ Creating Tasks
.. note::

:meth:`asyncio.TaskGroup.create_task` is a new alternative
based on `structural concurrency principles <https://en.wikipedia.org/wiki/Structured_concurrency>`_
that allows for waiting for a group of related tasks with strong safety guarantees.
leveraging structural concurrency; it allows for waiting
for a group of related tasks with strong safety guarantees.

.. important::

Expand Down Expand Up @@ -465,10 +465,7 @@ Running Tasks Concurrently
provides stronger safety guarantees than *gather* for scheduling a nesting of subtasks.
That is, if a task (or a subtask, a task scheduled by a task)
raises an exception, *TaskGroup* will, while *gather* will not,
cancel the remaining scheduled tasks). However the terser *gather* might be
preferred for *Iterable* of tasks which individually handle their own exceptions, or more
generally, when having some tasks survive the cancellation
of others is an acceptable outcome.
cancel the remaining scheduled tasks).

.. _asyncio_example_gather:

Expand Down