Python Interview Questions · interview question

Which practice avoids a common mistake with name == 'main' and Entry Points?

Multiple choiceMediumpython-interview-2026interviewpythonpitfall

Silence the __name__ == '__main__' and Entry Points problem by using broad catches, hidden globals, or extra shared mutable state.Do not bury important application startup in implicit import side effects when the workflow should have one explicit starting point.Prefer the version of __name__ == '__main__' and Entry Points that makes behavior less predictable as long as the code still runs.Ignore the __name__ == '__main__' and Entry Points issue and rely on team discipline instead of clearer APIs or invariants.

Answer and explanation

Correct answer

B. Do not bury important application startup in implicit import side effects when the workflow should have one explicit starting point.

Why

Do not bury important application startup in implicit import side effects when the workflow should have one explicit starting point. This is a common failure mode in real Python code and a frequent interview follow-up.

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Which practice avoids a common mistake with __name__ == '__main__' and Entry Points?

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Which practice avoids a common mistake with name == 'main' and Entry Points?