Core Collections · interview question

A bug appears around tuples. What is the strongest first debugging move?

Multiple choiceEasychapter-3-curatedpremiumcore-collectionstuples

python

location = ("Aisle-2", "Shelf-4")
aisle, shelf = location
print(aisle, shelf)

Keep tuples implicit so the script stays short and hope the next engineer infers the rule.Solve the symptom with comments only and avoid changing the code shape around tuples.Delay clarity until production traffic reveals the edge case and then patch it under pressure.Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.

Answer and explanation

Correct answer

D. Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.

Why

That approach is reliable because it creates evidence. If the positions are hard to remember, the tuple is probably hiding a richer model that should be named.

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A bug appears around tuples. What is the strongest first debugging move?

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