What are async iterators in Python 3.10?

Can you explain what async iterators are in Python 3.10?

Async iterators allow you to iterate over asynchronous data streams in Python 3.10, enabling non-blocking operations.

How do I create an async iterator?

You can create an async iterator by defining a class with __aiter__() and __anext__() methods.

Can you provide a simple code example?

Sure! Here's a basic example:

import asyncio

class AsyncCounter:
    def __init__(self, max):
        self.max = max
        self.count = 0

    def __aiter__(self):
        return self

    async def __anext__(self):
        if self.count < self.max:
            await asyncio.sleep(1)  # Simulate an async operation
            self.count += 1
            return self.count
        else:
            raise StopAsyncIteration

async def main():
    async for number in AsyncCounter(5):
        print(number)

asyncio.run(main())

What are the benefits of using async iterators?

Async iterators improve performance by allowing other tasks to run while waiting for data, making your code more efficient.