← All terms · Async & concurrency
async def
Declares a coroutine. Can be awaited; runs cooperatively on an event loop.
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Open lesson sr-21 →Related — Async & concurrency
awaitPauses a coroutine until another coroutine/Future finishes. Only legal inside `a…Event loopScheduler that drives async code — runs ready coroutines, parks blocked ones. `a…GILGlobal Interpreter Lock — CPython's mutex that lets only one thread run Python b…asyncio.gatherRun multiple coroutines concurrently and wait for all of them. The bread-and-but…asyncio.TaskGroupStructured concurrency primitive (Python 3.11+). `async with TaskGroup()` ensure…asyncio.wait_forCap any awaitable with a timeout: `await asyncio.wait_for(coro, timeout=5)`. Rai…