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Dive into the world of Just-In-Time (JIT) compilation within the CPython interpreter in this 30-minute conference talk from EuroPython 2025. Explore the mechanics of JIT compilation and understand how it differs from traditional interpretation methods. Discover the current state of the CPython JIT implementation in Python 3.14, including its latest advancements and performance improvements that address the growing demands of modern Python applications. Learn about the speaker's personal contributions to this open-source project and gain insights into how you can contribute to Python ecosystem innovation. Examine practical applications of the CPython JIT and discover how to enable it in your own applications. Understand how the JIT dynamically translates Python code into machine code at runtime using the CPython 3.14 implementation as a reference, and acquire the knowledge needed to implement JIT compilation in your Python projects for enhanced performance.
