What are the new asyncio enhancements in Python 3.11?

What are the new asyncio enhancements in Python 3.11?

Python 3.11 introduces several enhancements to asyncio, including improved error messages, performance optimizations, and new features like task groups.

Can you explain what task groups are?

Task groups allow you to manage multiple asyncio tasks as a single unit, making it easier to handle their lifecycle and errors.

How do I use task groups in my code?

You can use asyncio.TaskGroup to create a task group. Here's a simple example:

import asyncio

async def main():
    async with asyncio.TaskGroup() as tg:
        tg.create_task(task1())
        tg.create_task(task2())

async def task1():
    # Your code here

async def task2():
    # Your code here

This will run task1 and task2 concurrently.

What are the performance improvements in asyncio?

Python 3.11 has made several performance improvements, including faster task switching and reduced overhead for coroutines, which can lead to better overall performance in async applications.