Python Internals · interview question

Which move is the best default when dunder methods becomes part of this workflow?

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Keep dunder methods 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 dunder methods.Delay clarity until production traffic reveals the edge case and then patch it under pressure.Implement dunder methods when the object truly needs that protocol or debugging surface.

Answer and explanation

Correct answer

D. Implement dunder methods when the object truly needs that protocol or debugging surface.

Why

Implement dunder methods when the object truly needs that protocol or debugging surface. That is the stronger engineering move because interviewers often use repr and equality questions to test object-model understanding. Adding dunder methods without a clear behavioral contract can make the model more confusing rather than more Pythonic.

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Which move is the best default when dunder methods becomes part of this workflow?

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