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Stop repeating try...finally blocks. Learn how to implement Python's Context Management Protocol to automate resource cleanup and handle exceptions gracefully.
Deterministic cleanup in Python is achieved with context managers and the with statement. This guide explains how __enter__/__exit__ work, shows lightweight generators, dynamic cleanup with ExitStack, exception suppression, and common mistakes to avoid.
Learn how Python context managers handle resource cleanup deterministically, with a practical timer example and trade-offs to consider.
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