Explain the asyncio event loop and cooperative multitasking
Tests if you view the event loop as a single-threaded orchestrator, not magic parallelism. Strong answers note it runs tasks and callbacks, manages a ready queue, and yields control at await. Red flag: calling it multithreading or parallel execution.
This tests whether you understand the event loop as a single-threaded coordinator instead of hidden parallelism. A good answer outlines its three responsibilities: scheduling coroutines as Task objects, executing callbacks from the ready queue, and polling the OS selector for I/O readiness. It enables cooperative multitasking because coroutines voluntarily yield control at await expressions, letting the loop switch to the next ready task without preemption.
Read the original → docs.python.org
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