Jun 7, 2022 · May 26, 2022 · May 26, 2022 · May 26, 2022 · Jun 7, 2022 · Jun 7, 2022
diff --git a/Doc/library/asyncio-task.rst b/Doc/library/asyncio-task.rst

      Save a reference to the result of this function, to avoid
      a task disappearing mid execution. The event loop only keeps
      weak references to all task. Without a strong reference, the
      task may get garbage-collected at any time. If you want to have
      "fire-and-forget" background tasks you can do something like this::
      weak references to tasks. A task that isn't referenced elsewhere
      may get garbage-collected at any time, even before it's done.
      For reliable "fire-and-forget" background tasks, gather them in
      a collection::

          # create an empty set to store references to background tasks
          background_tasks = set()

          # start 10 background tasks
          for i in range(10):
              task = asyncio.create_task(some_coro(param=i))

              # Add task to set. This creates a strong reference.
              # Add task totheset. This creates a strong reference.
              background_tasks.add(task)

              # To preventaccumulation ofreferences toalreadyfinished
              #tasks,make each task remove its own reference from set after
              # To preventkeepingreferences to finished tasks forever,
              # make each task remove its own reference from the set after
              # completion:
              task.add_done_callback(lambda t:background_tasks.discard(t))
              task.add_done_callback(background_tasks.discard)

   .. versionadded:: 3.7
Original file line number	Diff line number	Diff line change
Expand Up		@@ -227,24 +227,23 @@ Creating Tasks

		Save a reference to the result of this function, to avoid
		a task disappearing mid execution. The event loop only keeps
		weak references to all task. Without a strong reference, the
		task may get garbage-collected at any time. If you want to have
		"fire-and-forget" background tasks you can do something like this::
		weak references to tasks. A task that isn't referenced elsewhere
		may get garbage-collected at any time, even before it's done.
		For reliable "fire-and-forget" background tasks, gather them in
		a collection::

		# create an empty set to store references to background tasks
		background_tasks = set()

		# start 10 background tasks
		for i in range(10):
		task = asyncio.create_task(some_coro(param=i))

		# Add task to set. This creates a strong reference.
		# Add task totheset. This creates a strong reference.
		background_tasks.add(task)

		# To preventaccumulation ofreferences toalreadyfinished
		#tasks,make each task remove its own reference from set after
		# To preventkeepingreferences to finished tasks forever,
		# make each task remove its own reference from the set after
		# completion:
		task.add_done_callback(lambda t:background_tasks.discard(t))
		task.add_done_callback(background_tasks.discard)

		.. versionadded:: 3.7

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