What are some examples of async Python libraries?

What are some examples of async Python libraries?

Some popular async Python libraries include asyncio, aiohttp, and FastAPI. Would you like to know more about any specific one?

Can you explain how to use aiohttp for making async HTTP requests?

Sure! With aiohttp, you can use the ClientSession to make async HTTP requests. Here's a simple 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()

async def main():
    html = await fetch('http://example.com')
    print(html)

asyncio.run(main())

This code fetches the HTML content from a URL asynchronously.

What about using FastAPI for building async web applications?

FastAPI is great for building async web applications. It allows you to define endpoints using async functions, which can handle requests concurrently. Here's a quick example:

from fastapi import FastAPI

app = FastAPI()

@app.get('/')
async def read_root():
    return {'Hello': 'World'}

if __name__ == '__main__':
    import uvicorn
    uvicorn.run(app, host='0.0.0.0', port=8000)

This sets up a simple web server that responds with a JSON object.