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Concurrency · interview question

A bug appears around cancellation. What is the strongest first debugging move?

Multiple choiceMediumchapter-15-curatedpremiumconcurrencycancellation
python
task = asyncio.create_task(fetch_order("ORD-1"))
task.cancel()
Choose one answer
Answer and explanation

Correct answer

A. Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.

Why

That approach is reliable because it creates evidence. Ignoring cancellation leaves stray work running after the caller has already moved on.

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