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Iterators & Generators
AdvancedAdvanced
The iterator protocol, generator suspension, yield from, lazy evaluation and streaming data pipelines.
14 lessons 4 labs 1 projects ~8h
Prerequisites: Advanced Python
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Lessons in this build
Iterators & the Iterator Protocol
An iterator produces values one at a time via __next__, raising StopIteration when it runs out — the single protocol every for loop, comprehension and unpacking in Python relies on.
interactive visualizerGenerators & yield
A generator uses yield to produce values lazily, suspending its frame between values so each item is computed only when asked — an iterator you get almost for free.
interactive visualizerWhy it matters
Interview importance 5/5 · production importance 4/5.
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