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  1. Python’s asyncio library enables writing concurrent code using the async and await keywords. It’s designed for I/O-bound tasks, allowing multiple operations to run seemingly in parallel within a single thread using an event loop.

    Core Concepts

    • Coroutine Functions: Declared with async def, they return coroutine objects that can be awaited.

    • Await: Suspends execution of the current coroutine, giving control back to the event loop until the awaited task completes.

    • Event Loop: Manages and schedules coroutines, ensuring tasks run cooperatively without blocking.

    • Tasks: Wrappers around coroutines created with asyncio.create_task() to schedule them for concurrent execution.

    Basic Example – Running coroutines concurrently:

    import asyncio

    async def task1():
    print("Task 1 started")
    await asyncio.sleep(1)
    print("Task 1 completed")

    async def task2():
    print("Task 2 started")
    await asyncio.sleep(2)
    print("Task 2 completed")

    async def main():
    await asyncio.gather(task1(), task2())

    asyncio.run(main())
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