May 6, 2023 · May 3, 2023 · May 3, 2023 · May 4, 2023 · May 5, 2023 · May 5, 2023
diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py
    nfinished = 0
    loop = None
    outer = None  # bpo-46672
    all_finished = True
    for arg in coros_or_futures:
        if arg not in arg_to_fut:
            fut = ensure_future(arg, loop=loop)

            nfuts += 1
            arg_to_fut[arg] = fut
            fut.add_done_callback(_done_callback)
            if fut.done():
                # call the callback immediately instead of scheduling it
                _done_callback(fut)
            else:
                all_finished = False
                fut.add_done_callback(_done_callback)

        else:
            # There's a duplicate Future object in coros_or_futures.
            fut = arg_to_fut[arg]

        children.append(fut)

    outer = _GatheringFuture(children, loop=loop)
    if all_finished:
        # optimization: skip creating GatheringFuture if all children completed
        # (e.g. when all coros are able to complete eagerly)
        outer = futures.Future(loop=loop)
        outer.set_result([c.result for c in children])
    else:
        outer = _GatheringFuture(children, loop=loop)
    return outer