Python · Senior · Theory

How does a context manager work under the hood? What happens to an exception inside a with block, and how would you write a manager that handles a database transaction?

~4 min by voice

How to approach it

This checks whether you understand the context manager protocol: how with calls __enter__ and __exit__, and how an exception passes through __exit__ and gets suppressed. Second, whether you can apply it to a real task: a transaction with commit and rollback, nesting and async.

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Topics

context managers stdlib

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Answer by voice

The interviewer will ask this question and listen. Think out loud and ask for a hint if you need one. When you're done, pause or tap “That's my answer”. In about a minute, your score and the points you covered show up here.

Best with headphones · ~4 min