Type Hints · interview question
A teammate submits shaky optional and collections code. Which review comment is the strongest?
Multiple choiceEasychapter-10-curatedpremiumtype-hintsoptional-and-collections
Answer and explanation
Correct answer
B. Make the rule clearer and easier to explain. Declare when values may be absent and when callers should expect lists, sets, or mappings of a certain shape.
Why
The best review comment anchors the change to readability, correctness, and future maintenance. If None and collection contents are left implicit, edge cases spread across many call sites.
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