[$] Python performance myths and fairy tales

Antonio Cuni, whois a longtime Python performance engineer and PyPy developer, gave a presentation at EuroPython2025 about "Myths and fairy tales around Python performance" onthe first day of the conference in Prague. As might be guessed from thetitle, he thinks that much of the conventional wisdom about Pythonperformance is misleading at best. With lots of examples, he showed wherethe real problems that he sees lie. He has come to the conclusion that memorymanagement will ultimately limit what can be done about Python performance,but he has anearly-stage project called SPy thatmight be a way toward a super-fast Python.