Python Fundamentals · interview question
What is the clearest sign that code around built-in types and none should be refactored?
Multiple choiceEasychapter-1-curatedpremiumpython-fundamentalsbuilt-in-types-and-none
Answer and explanation
Correct answer
D. When the rule is no longer easy to trace, explain, or change without breaking nearby behavior.
Why
A refactor is justified when the code stops communicating its intent. Use built-in types to match the real shape of the data: counts as integers, text as strings, flags as booleans, and missing optional data as None.
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