nest_asyncio_patch_for_nested_event_loop_execution.py

1import nest_asyncio
2import asyncio
3
4nest_asyncio.apply()
5
6async def main():
7    print("Main start")
8    await asyncio.sleep(1)
9    
10    async def nested():
11        print("Nested start")
12        await asyncio.sleep(1)
13        print("Nested end")
14    
15    # Normally, this would raise a RuntimeError: This event loop is already running
16    asyncio.run(nested())
17    
18    print("Main end")
19
20asyncio.run(main())