Python Fundamentals · interview question
A bug appears around expressions and arithmetic. What is the strongest first debugging move?
Multiple choiceEasychapter-1-curatedpremiumpython-fundamentalsexpressions-and-arithmetic
subtotal = 39.99 * 3
shipping = 0 if subtotal >= 100 else 6.50
qualifies_for_review = subtotal > 200 and shipping == 0
print(subtotal, shipping, qualifies_for_review)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. One dense expression might run, but it becomes harder to trace when totals look believable and are still wrong.
Test yourself on Python Fundamentals
A free test with instant, explained results. No account needed.
More Python Fundamentals questions
- Which explanation would sound strongest in an interview when discussing built-in types and none?
- When is expressions and arithmetic being used in the wrong way?
- What does a strong engineer do when reasoning through f-strings and output formatting code?
- Another engineer will maintain this code later. What choice helps the most around expressions and arithmetic?
- What does a strong engineer do when reasoning through expressions and arithmetic code?
- What does a strong engineer do when reasoning through variables and names code?