import asyncio
import time

async def main():
    print("coro start")
    loop = asyncio.get_running_loop()
    loop.run_in_executor(None, blocking)
    await asyncio.sleep(1.0)
    print("coro stop")

def blocking():
    print("thread start")
    time.sleep(3.0)
    print("thread stop")

try:
    asyncio.run(main())
except KeyboardInterrupt:
    print("interrupted!")

coro start
thread start
coro stop
^Cinterrupted!
thread stop

exception calling callback for <Future at 0x7fb3e38bc0a0 state=finished returned NoneType>
Traceback (most recent call last):
  File "/usr/lib64/python3.10/concurrent/futures/_base.py", line 342, in _invoke_callbacks
    callback(self)
  File "/usr/lib64/python3.10/asyncio/futures.py", line 399, in _call_set_state
    dest_loop.call_soon_threadsafe(_set_state, destination, source)
  File "/usr/lib64/python3.10/asyncio/base_events.py", line 795, in call_soon_threadsafe
    self._check_closed()
  File "/usr/lib64/python3.10/asyncio/base_events.py", line 515, in _check_closed
    raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed
Exception in thread Thread-1 (_do_shutdown):
Traceback (most recent call last):
  File "/usr/lib64/python3.10/asyncio/base_events.py", line 576, in _do_shutdown
    self.call_soon_threadsafe(future.set_result, None)
  File "/usr/lib64/python3.10/asyncio/base_events.py", line 795, in call_soon_threadsafe
    self._check_closed()
  File "/usr/lib64/python3.10/asyncio/base_events.py", line 515, in _check_closed
    raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib64/python3.10/threading.py", line 1016, in _bootstrap_inner
    self.run()
  File "/usr/lib64/python3.10/threading.py", line 953, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib64/python3.10/asyncio/base_events.py", line 578, in _do_shutdown
    self.call_soon_threadsafe(future.set_exception, ex)
  File "/usr/lib64/python3.10/asyncio/base_events.py", line 795, in call_soon_threadsafe
    self._check_closed()
  File "/usr/lib64/python3.10/asyncio/base_events.py", line 515, in _check_closed
    raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed

 39     loop = events.new_event_loop()
 40     try:
 41         events.set_event_loop(loop)
 42         if debug is not None:
 43             loop.set_debug(debug)
 44         return loop.run_until_complete(main)
 45     finally:
 46         try:
 47             _cancel_all_tasks(loop)
 48             loop.run_until_complete(loop.shutdown_asyncgens())
 49             loop.run_until_complete(loop.shutdown_default_executor())
 50         finally:
 51             events.set_event_loop(None)
 52             loop.close()