The id of different Asyncio tasks are the same due to the CPython memory implementation for objects smaller than X bytes

arena_id.py

import asyncio
import sys

async def foo():
    pass

async def test():
    t = asyncio.tasks.create_task(foo())
    print(sys.getsizeof(t))
    print(id(t))

loop = asyncio.get_event_loop()
loop.run_until_complete(test())
loop.run_until_complete(test())
loop.run_until_complete(test())

$ python3 test_allocator.py
160
4504608840
160
4504608840
160
4504608840