crash-asyncio.py

import asyncio
import threading


def unset_event_loop_policy_forever():
    while True:
        asyncio.set_event_loop_policy(None)


t = threading.Thread(target=unset_event_loop_policy_forever)
t.daemon = True
t.start()

while True:
    # assert asyncio.get_event_loop_policy() is not None
    asyncio.get_event_loop()
    # -> AttributeError: 'NoneType' object has no attribute 'get_event_loop'