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Iterators & Generators easy

Custom iterator class

Implement a custom iterator class that repeatedly yields elements from a list up to a given number of times.

iterator class cycle

Iterators & Generators easy

Generator Pipeline

Implement a generator function that yields only even numbers from an input list, squared.

generators lazy-evaluation filter

Iterators & Generators easy

Pairwise Sequence Pairs

Write a generator function pairwise that yields each consecutive overlapping pair from any iterable as lists.

generators iterators pairs

Iterators & Generators easy

Groupby Consecutive

Write a generator function that yields (value, list_of_occurrences) for each run of consecutive equal items.

generator groupby consecutive

Showing 4 challenges · easy · Iterators & Generators

Iterators & Generators — Python coding challenges

What you will find here

This page lists iterators & generators challenges — real Python problems you solve in the browser IDE with instant test feedback. Each challenge includes a clear brief, starter code, and automated checks.

Challenges vs tutorials and quizzes

Challenges test what you can build under constraints. For guided teaching, use our Python tutorials. For quick checks, try quizzes or copy snippets from code samples.