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PCEP – Certified Entry-Level Python Programmer PCEP-30-02 · Domain 2: Control flow: conditional blocks and loops

Iterating over strings, lists and other sequences with for

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Last reviewed September 30, 2026 · Leer en español

A for loop is not limited to numbers. It works with any iterable, meaning any object that can hand out its items one at a time. Strings, lists, tuples, dictionaries, sets and ranges are all iterable. The syntax is always for name in iterable:, and on each pass the name is bound to the next item. The loop ends by itself when the items run out, so you never need a counter or an end condition.

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