“Also, we need to be frank with users. At the language summit we agreed to sacrifice some speed in exchange for getting closer to having subinterpreters work.
As a result, precomputed constants, freelists, and other global state, now have an extra layer of indirection.”
Новый Питон действительно должен работать медленнее старых.
хз, pypy как работал быстро, так и работает