We’re pleased to announce the 1.4 release of PyPy. This is a major breakthrough in our long journey, as PyPy 1.4 is the first PyPy release that can translate itself faster than CPython. Starting today, we are using PyPy more for our every-day development. So may you :) You can download it here:
PyPy is a very compliant Python interpreter, almost a drop-in replacement for CPython. It’s fast (pypy 1.4 and cpython 2.6 comparison)
Among its new features, this release includes numerous performance improvements (which made fast self-hosting possible), a 64-bit JIT backend, as well as serious stabilization. As of now, we can consider the 32-bit and 64-bit linux versions of PyPy stable enough to run in production.
Numerous speed achievements are described on our blog. Normalized speed charts comparing pypy 1.4 and pypy 1.3 as well as pypy 1.4 and cpython 2.6 are available on benchmark website. For the impatient: yes, we got a lot faster!
Carl Friedrich Bolz, Antonio Cuni, Maciej Fijalkowski, Amaury Forgeot d’Arc, Armin Rigo and the PyPy team