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Domain Modeling · interview question

Which option is the safer default when shipping code around properties and encapsulation?

Multiple choiceHardchapter-7-curatedpremiumdomain-modelingproperties-and-encapsulation
python
class InventoryItem:
    def __init__(self, stock: int) -> None:
        self._stock = stock

    @property
    def stock(self) -> int:
        return self._stock
Choose one answer
Answer and explanation

Correct answer

B. Choose the simpler shape that keeps the rule obvious, validated, and easy to observe in logs or tests.

Why

The safest default is usually the one that lowers ambiguity and makes errors easier to diagnose.

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