Advanced Python · interview question
A bug appears around class-based context managers. What is the strongest first debugging move?
Multiple choiceMediumchapter-14-curatedpremiumadvanced-pythonclass-based-context-managers
class ConnectionManager:
def __enter__(self):
return self
def __exit__(self, exc_type, exc, tb):
print("closing")Answer and explanation
Correct answer
B. 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. Manual open/close behavior scattered across the codebase is easier to forget and harder to review.
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