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Explore the 20th anniversary of PEP 343 in this entertaining 25-minute conference talk that delves into Python's context managers, a feature that has been part of the language since 2005 but remains incredibly useful today. Discover why context managers exist, understand their underlying mechanics, learn when to implement them in your code, and see how they work synergistically with the contextvars module. Gain insights into proper resource management and avoid common pitfalls like memory leaks and unclosed file handles through practical examples and clear explanations. Whether you're just starting with Python or you're an experienced developer, this presentation offers valuable knowledge about one of Python's most elegant features for managing resources and ensuring clean code execution.
