Range-like generator
Implement a custom generator that yields numbers like Python's range but with flexible bounds.
File Line Reader Generator
Implement a generator function that reads a file-like object and yields each non-empty line without loading the whole file into memory.
Cartesian Product Generator
Implement a generator function that yields the Cartesian product of multiple input iterables without precomputing all results.
Zip Longest Fill
Create an iterator that yields lists from multiple iterables, padding with a fill value when lengths differ.
Graph DFS Generator
Implement a generator function that performs a depth-first traversal of a graph without recursion.
Showing 5 challenges · 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.