Python Performance: Myths, Realities, and the SPy Project

At EuroPython 2025, Python performance engineer Antonio Cuni debunked common misconceptions about Python's speed. He argued that Python's performance limitations stem not solely from its interpreted nature, but also from memory management overhead and dynamic features. While JIT compilers help, Cuni believes they can't fully solve the problem. He introduced SPy, a project aiming to enhance Python's performance without sacrificing compatibility by tweaking language semantics. SPy, available on GitHub, offers beginner-friendly issues for community contribution.