Asyncio Task Creation Delay in Python 3.12.8 Compared to Python 3.10

[Godmyhave]

Python Version: 3.12.8 When using asyncio.gather to concurrently execute asynchronous HTTP requests, there is a significant delay in task creation—approximately one second per task—which is unreasonable. The same code runs normally in Python 3.10, with tasks being created and executed concurrently without such delays. `import asyncio import time import httpx

async def test_request(brand_id: int): url = "https://httpbin.org/delay/1" async with httpx.AsyncClient() as client: response = await client.get(url) return response.text

async def test(task_id: int): print(f"{time.strftime('%Y-%m-%d %H:%M:%S', time.gmtime())} task {task_id} start") response = await test_request(brand_id=task_id) print(f"{time.strftime('%Y-%m-%d %H:%M:%S', time.gmtime())} task {task_id} end")

async def batch_test(task_ids: list[int]): print(task_ids) tasks = [asyncio.create_task(test(task_id)) for task_id in task_ids] await asyncio.gather(*tasks)

if name == 'main': task_ids = [i for i in range(10)] asyncio.run(batch_test(task_ids))`

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9] 2025-11-06 17:36:19 task 0 start 2025-11-06 17:36:20 task 1 start 2025-11-06 17:36:21 task 2 start 2025-11-06 17:36:22 task 3 start 2025-11-06 17:36:22 task 4 start 2025-11-06 17:36:23 task 5 start 2025-11-06 17:36:24 task 6 start 2025-11-06 17:36:24 task 7 start 2025-11-06 17:36:25 task 8 start 2025-11-06 17:36:26 task 9 start 2025-11-06 17:36:24 task 7 start 2025-11-06 17:36:25 task 8 start 2025-11-06 17:36:26 task 9 start 2025-11-06 17:36:25 task 8 start 2025-11-06 17:36:26 task 9 start 2025-11-06 17:36:28 task 5 end 2025-11-06 17:36:28 task 7 end 2025-11-06 17:36:26 task 9 start 2025-11-06 17:36:28 task 5 end 2025-11-06 17:36:28 task 7 end 2025-11-06 17:36:28 task 5 end 2025-11-06 17:36:28 task 7 end 2025-11-06 17:36:28 task 7 end 2025-11-06 17:36:28 task 0 end 2025-11-06 17:36:28 task 0 end 2025-11-06 17:36:28 task 2 end 2025-11-06 17:36:28 task 4 end 2025-11-06 17:36:28 task 4 end 2025-11-06 17:36:28 task 3 end 2025-11-06 17:36:28 task 1 end 2025-11-06 17:36:28 task 8 end 2025-11-06 17:36:28 task 6 end 2025-11-06 17:36:28 task 9 end

I don't know why this is happening