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asyncio event loop

The single-threaded scheduler running coroutines, resuming each when the thing it awaited is ready.

Concurrency, not parallelism - one thread, one core. The killer detail: one blocking call inside a coroutine stalls every other task on the loop.

A function defined with async def. Calling it returns a coroutine object; nothing runs until it is awaited or scheduled.

A lock in standard CPython ensuring only one thread executes Python bytecode at a time.

This term is part of the free Python Full-Stack interview preparation module - browse the full glossary for every definition.

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