1. Python asyncio¶

import asyncio


async def fetch_data(delay):
    print(f"Started fetching data with {delay}s delay")

    # Simulates I/O-bound work, such as network operation
    await asyncio.sleep(delay)

    print("Finished fetching data")
    return f"Data after {delay}s"


async def main():
    print("Starting main")

    # Schedule two tasks concurrently
    task1 = asyncio.create_task(fetch_data(2))
    task2 = asyncio.create_task(fetch_data(3))

    # Wait until both tasks complete
    result1, result2 = await asyncio.gather(task1, task2)

    print(result1)
    print(result2)
    print("Main complete")


if __name__ == "__main__":
    asyncio.run(main())