You mentioned that files can be written asynchronously. Which library can be used for this?

In Python, the aiofiles library can be used for asynchronous file writing. It provides asynchronous counterparts to standard file operations, allowing the main thread not to be blocked when working with the disk.

Example of using aiofiles for asynchronous writing:

import asyncio
import aiofiles

async def write_file():
    async with aiofiles.open('example.txt', mode='w') as f:
        await f.write('Example of asynchronous file writing')

asyncio.run(write_file())

This is especially useful in asynchronous applications where it is important not to block the event loop.