ImportError: cannot import name 'DefaultEventLoopPolicy' from 'asyncio'

[commongeek]

Does graalpy support asyncio on Windows (Windows Server 2025 Standard)?

import asyncio

async def test():
    pass

asyncio.run(test())

Jun 18, 2025 12:40:20 PM org.graalvm.shadowed.org.jline.utils.Log logr
WARNING: Unable to create a system terminal, creating a dumb terminal (enable debug logging for more information)
Traceback (most recent call last):
  File "test.py", line 6, in <module>
    asyncio.run(test())
  File "C:\Users\admin\graalpy-24.2.1-windows-amd64\Lib\asyncio\runners.py", line 189, in run
    with Runner(debug=debug) as runner:
  File "C:\Users\admin\graalpy-24.2.1-windows-amd64\Lib\asyncio\runners.py", line 59, in __enter__
    self._lazy_init()
  File "C:\Users\admin\graalpy-24.2.1-windows-amd64\Lib\asyncio\runners.py", line 137, in _lazy_init
    self._loop = events.new_event_loop()
  File "C:\Users\admin\graalpy-24.2.1-windows-amd64\Lib\asyncio\events.py", line 806, in new_event_loop
    return get_event_loop_policy().new_event_loop()
  File "C:\Users\admin\graalpy-24.2.1-windows-amd64\Lib\asyncio\events.py", line 761, in get_event_loop_policy
    _init_event_loop_policy()
  File "C:\Users\admin\graalpy-24.2.1-windows-amd64\Lib\asyncio\events.py", line 754, in _init_event_loop_policy
    from . import DefaultEventLoopPolicy
ImportError: cannot import name 'DefaultEventLoopPolicy' from 'asyncio' (C:\Users\admin\graalpy-24.2.1-windows-amd64\Lib\asyncio\__init__.py)