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Python aiter() function

In Python, the aiter() function is used to create asynchronous iterators. It’s specifically designed for working with asynchronous iteration in asynchronous code (often used with async for loops). This function is available in Python’s asyncio module.

Here’s an example illustrating the usage of aiter()

import asyncio

# Define an asynchronous generator function
async def my_async_generator():
    for i in range(5):
        # Simulate an asynchronous operation using asyncio.sleep
        await asyncio.sleep(1)
        yield i

# Create an asynchronous iterator using aiter()
async def main():
    async for item in aiter(my_async_generator()):

# Run the event loop to execute the asynchronous code

In this example:

  • my_async_generator() is an asynchronous generator that yields values asynchronously with a simulated delay of 1 second using asyncio.sleep.
  • aiter() is used to create an asynchronous iterator from the asynchronous generator.
  • async for is used to asynchronously iterate over the items produced by the asynchronous generator and print them.

The output will be the values 0 through 4, printed one second apart due to the simulated delay.

aiter() is especially useful in asynchronous programming when dealing with asynchronous iterators and generators. It allows for working with async code in a more straightforward manner, enabling asynchronous iteration and consumption of values from async generators.

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