What are async generators in Python and how do I use them?

What are async generators in Python and how do I use them?

Async generators are a special type of generator that allow you to use the async and await keywords. They enable asynchronous iteration, which is useful for handling I/O-bound tasks without blocking the execution of your program.

Can you show me a simple example of an async generator?

Sure! Here's a simple example:

import asyncio

async def async_gen():
    for i in range(5):
        await asyncio.sleep(1)  # Simulate an I/O operation
        yield i

async def main():
    async for value in async_gen():
        print(value)

asyncio.run(main())

What are the benefits of using async generators?

The main benefits include improved performance for I/O-bound tasks, better resource utilization, and the ability to handle multiple operations concurrently without blocking.

Are there any limitations I should be aware of?

Yes, async generators can only be used in an asynchronous context, and they may not be compatible with synchronous code. Additionally, error handling can be more complex.