Stabilize iterator batching utility
Medium Python arena: iterators, generators, laziness, and memory-safe batching
Log in and clear the lower tiers to unlock this mission.
Missing prerequisites: python-easy-iterator-batches
A data export must stream millions of IDs without loading them all at once. You are working inside a Python service repository, and the arena only clears when the result is safe, deterministic, and explainable.
Learn to apply iterators, generators, laziness, and memory-safe batching in a Python service repository while explaining the invariant, safety constraints, and hidden edge cases.
- Demonstrates iterators, generators, laziness, and memory-safe batching
- Handles the visible sample and hidden edge cases
- Keeps output deterministic and explainable
- Avoids unsafe dynamic execution
Clear the route first
You can read the mission brief, but the editor, hints, tests, and submit flow stay locked until progression or plan access catches up.
Test Results
Run the visible checks when your first pass is ready.
Clear Protocol
Rewards
Mission Route
Hints
Hints are metered and logged for No Hint Hero runs.
Genie Mentor Core
Hint protocol / contextual guardrails active