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Learn Python queue.SimpleQueue for thread-safe FIFO queues, worker pipelines, clean shutdown, and reliable producer-consumer designs.

Learn Python StrEnum for string-based enums, input validation, JSON serialization, APIs, configuration, and cleaner domain contracts.

Learn Python contextlib.chdir to change directories temporarily, restore paths safely, isolate tests, and avoid global-state bugs.

Learn Python sys.monitoring for low-overhead instrumentation with selective events, callbacks, tooling, and safe observability.

Learn Python operator.attrgetter to sort, group, and transform objects by simple or nested attributes with clearer reusable code.

Learn Python asyncio.Runner to reuse an event loop, control context, signals, debug mode, cancellation, and safe asynchronous shutdown.

Learn Python compression.zstd for Zstandard compression, streaming, dictionaries, safe limits, testing, and production workflows.

Learn Python zipapp to package applications as executable pyz archives, include dependencies, and distribute tools safely.