Q65: What is PyPy and how does its JIT Compiler differ from CPython?

PyPy is an alternative implementation of Python written in RPython. It features a Just-In-Time (JIT) Compiler that analyzes code execution at runtime, compiling hot bytecode loops directly into machine code for 4x-5x average speedups over CPython.

Key Takeaways
  • Alternative Python implementation featuring a JIT compiler.
  • Delivers substantial performance speedups for long-running CPU loops.
Knowledge Check

Does standard CPython incorporate a JIT compiler by default in Python 3.10?