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Generator
A function with `yield`. Produces values lazily, one at a time — uses constant memory for streams.
def evens(): n=0; \n while True: yield n; n+=2
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Open lesson lesson-110 →Related — Data structures
List comprehensionInline syntax for building a list from another iterable, with optional filter: `…Dict comprehensionSame as list comp, but builds a dict: `{k: v for k, v in pairs}`.TupleOrdered immutable sequence. Use for fixed-size records and as dict keys.SetUnordered collection of unique hashable values. O(1) membership check.DictionaryHash map from keys to values. Insertion order preserved since Python 3.7.IterableAnything you can loop over with `for`. Lists, tuples, sets, dicts, strings, file…