What are some examples of using async in Python?

What are some examples of using async in Python?

Async programming in Python allows you to write concurrent code using the async/await syntax. Would you like to see a specific example?

Yes, can you show me an example of an async function?

Sure! Here's a simple example:

import asyncio

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

asyncio.run(say_hello())

This function waits for 1 second before printing 'Hello!'. Would you like to know more about how it works?

What about using async with web requests?

Great question! You can use the aiohttp library for async web requests. Here's a quick example:

import aiohttp
import asyncio

async def fetch(url):
    async with aiohttp.ClientSession() as session:
        async with session.get(url) as response:
            return await response.text()

asyncio.run(fetch('https://example.com'))

This fetches the content of a webpage asynchronously.