How can I use asyncio for web scraping in Python 3.10?

How can I use asyncio for web scraping in Python 3.10?

You can use the asyncio library along with aiohttp to perform asynchronous web scraping. This allows you to make multiple requests concurrently, improving efficiency.

Can you show me a simple example of how to implement this?

Sure! Here's a basic example:

import asyncio
import aiohttp

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

async def main():
    urls = ['http://example.com', 'http://example.org']
    tasks = [fetch(url) for url in urls]
    results = await asyncio.gather(*tasks)
    print(results)

asyncio.run(main())

What about using user agents to avoid getting blocked?

You can set custom user agents in your requests to mimic different browsers. Here's how you can modify the fetch function:

headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'}

async with session.get(url, headers=headers) as response: