What is asyncio in Python and how can I use it?

What is asyncio in Python and how can I use it?

Asyncio is a library in Python used for writing concurrent code using the async/await syntax. It allows you to run multiple tasks at the same time without blocking the main thread.

Can you give me an example of how to use asyncio?

Sure! Here's a simple example:

import asyncio

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

async def main():
    await say_hello()

asyncio.run(main())

What are some common use cases for asyncio?

Common use cases include web scraping, handling multiple network connections, and performing I/O-bound tasks efficiently.

Are there any limitations to using asyncio?

Yes, asyncio is best suited for I/O-bound tasks. It may not provide performance benefits for CPU-bound tasks, where multiprocessing might be a better choice.