What are some examples of async programming in Python?

What are some examples of async programming in Python?

Async programming in Python allows for concurrent code execution. A common example is using the asyncio library.

Can you show me a simple code example?

Sure! Here's a basic example:

import asyncio

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

asyncio.run(say_hello())

What does await do in this context?

The await keyword pauses the function execution until the awaited task is complete, allowing other tasks to run.

Are there any real-world applications of async in Python?

Yes, async is widely used in web frameworks like FastAPI and in applications that require handling multiple I/O operations, like web scraping.