Python’da async/await ile asenkron programlama, I/O bound işlemlerde performansı önemli ölçüde artırır.

Async/Await Temelleri

import asyncio

async def fetch_data():
    print("Fetching data...")
    await asyncio.sleep(2)  # Simüle edilen I/O
    return {"data": "example"}

async def main():
    result = await fetch_data()
    print(result)

# Çalıştır
asyncio.run(main())

Birden Fazla Task

async def task1():
    await asyncio.sleep(1)
    return "Task 1 completed"

async def task2():
    await asyncio.sleep(2)
    return "Task 2 completed"

async def main():
    # Paralel çalıştır
    results = await asyncio.gather(
        task1(),
        task2()
    )
    print(results)

Web Scraping Örneği

import aiohttp
import asyncio

async def fetch_url(session, url):
    async with session.get(url) as response:
        return await response.text()

async def main():
    urls = [
        'https://example.com/page1',
        'https://example.com/page2',
        'https://example.com/page3'
    ]
    
    async with aiohttp.ClientSession() as session:
        tasks = [fetch_url(session, url) for url in urls]
        results = await asyncio.gather(*tasks)
        return results

Async/await ile uygulamalarınızı hızlandırın!