What are some examples of using async and await in Python 3.10?

What are some examples of using async and await in Python 3.10?

In Python 3.10, you can use async and await to write asynchronous code. For example, you can define an async function like this:

import asyncio

async def fetch_data():
    await asyncio.sleep(1)  # Simulates a network call
    return 'Data fetched'

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

asyncio.run(main())

Can you explain how the event loop works in this context?

Sure! The event loop is responsible for executing asynchronous tasks. When you call an async function, it returns a coroutine object. The event loop schedules these coroutines and runs them, allowing other tasks to run while waiting for I/O operations to complete.

What are the benefits of using async and await?

The main benefits include improved performance for I/O-bound tasks, better resource utilization, and a more readable code structure compared to traditional threading.

Are there any common pitfalls to avoid when using async and await?

Yes, some common pitfalls include forgetting to await a coroutine, mixing synchronous and asynchronous code improperly, and not handling exceptions in async functions.