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Python asyncio tasks, cancellation, synchronization, threads, processes, backpressure, and production concurrency.
Practice items tagged with Async & Concurrency.
Shows how task interleaving across await points can violate a multi-step invariant.
Separates caller time bounds, cancellation propagation, and ownership of protected underlying work.
Builds a cooperative scheduling model for tasks, callbacks, readiness, and I/O polling.
Chooses a concurrency model from workload, libraries, isolation, runtime build, and operational cost.
Finds synchronous I/O or CPU work that prevents the event loop from scheduling other tasks.
Combines asyncio debug evidence, task inspection, warnings, profiling, and capacity signals.