Tree inorder generator
Write a generator function that yields a binary tree's node values in inorder traversal.
Flatten Nested List Iterator
Implement a class that iterates over all integers in a nested list structure in depth-first order.
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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.
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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.