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Final part of the series. Generators turn an O(N) memory problem into an O(1) memory problem and let you compose pipelines that read like sentences. Five patterns: streaming files, paginated APIs, itertools chains, batching, and async generators.
Part 2 of a 3-post series. Context managers earn their keep when you have a resource that must be set up and torn down — and `with open()` is barely scratching the surface. Five patterns: timing, transactions, async, ExitStack, and supressing exceptions.
Part 1 of a 3-post series. Decorators are easy to misuse and spectacular when they fit. Here are the four shapes I reach for in production AI/data work, with code: retry, timing, instrumentation, and feature-flagging.