PyPy: JIT-Compiled Python

· Python Developer Tooling Handbook – pydevtools.com · Sept. 10, 2026, 2:40 p.m.
Summary
PyPy is a JIT-compiled alternative to the standard Python interpreter (CPython) designed to speed up the execution of pure Python code by an average of 3 times. It's beneficial for programs that spend considerable time in pure Python, with advantages increasing during longer execution times. To install PyPy, use the command `uv python install [email protected]`, which manages multiple Python interpreters.
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