How can I cancel a task in Python's asyncio?

How can I cancel a task in Python's asyncio?

You can cancel a task in asyncio by calling the cancel() method on the task object. Here's a simple example.

Can you show me a code snippet for that?

Sure! Here's a basic example:

import asyncio

async def my_task():
    try:
        while True:
            print('Running...')
            await asyncio.sleep(1)
    except asyncio.CancelledError:
        print('Task was cancelled.')

async def main():
    task = asyncio.create_task(my_task())
    await asyncio.sleep(3)
    task.cancel()
    await task

asyncio.run(main())

What happens if the task is already running when I call cancel?

If the task is running, it will raise a CancelledError exception, which you can catch to perform any cleanup.