What is async IO in Python and how does it work?

What is async IO in Python and how does it work?

Async IO in Python allows for concurrent code execution using the async and await keywords, enabling efficient I/O operations.

Can you give me an example of how to use async IO in a simple program?

Sure! Here's a simple example:

import asyncio

async def main():
    print('Hello')
    await asyncio.sleep(1)
    print('World')

asyncio.run(main())

What are the benefits of using async IO over traditional threading?

Async IO is generally more efficient for I/O-bound tasks, as it avoids the overhead of thread management and context switching.

Are there any libraries that support async IO in Python?

Yes, popular libraries include aiohttp for asynchronous HTTP requests and asyncpg for asynchronous PostgreSQL database access.