Thursday, July 11, 2013

PyPy 2.1 beta

We're pleased to announce the first beta of the upcoming 2.1 release of PyPy. This beta contains many bugfixes and improvements, numerous improvements to the numpy in pypy effort. The main feature being that the ARM processor support is not longer considered alpha level.

We would like to thank the Raspberry Pi Foundation for supporting the work to finish PyPy's ARM support.

You can download the PyPy 2.1 beta release here:


  • Bugfixes to the ARM JIT backend, so that ARM is now an officially
    supported processor architecture
  • Stacklet support on ARM
  • Interpreter improvements
  • Various numpy improvements
  • Bugfixes to cffi and ctypes
  • Bugfixes to the stacklet support
  • Improved logging performance
  • Faster sets for objects

What is PyPy?

PyPy is a very compliant Python interpreter, almost a drop-in replacement for CPython 2.7.3. It's fast due to its integrated tracing JIT compiler. This release supports x86 machines running Linux 32/64, Mac OS X 64 or Windows 32. Also this release supports ARM machines running Linux 32bit - anything with ARMv6 (like the Raspberry Pi) or ARMv7 (like Beagleboard, Chromebook, Cubieboard, etc.) that supports VFPv3 should work. Both hard-float armhf/gnueabihf and soft-float armel/gnueabi builds are provided. armhf builds for Raspbian are created using the Raspberry Pi
custom cross-compilation toolchain based on gcc-arm-linux-gnueabihf and should work on ARMv6 and ARMv7 devices running Debian or Raspbian. armel builds are built using the gcc-arm-linux-gnuebi toolchain provided by Ubuntu and currently target ARMv7.

Windows 64 work is still stalling, we would welcome a volunteer to handle that.

How to use PyPy?

We suggest using PyPy from a virtualenv. Once you have a virtualenv installed, you can follow instructions from pypy documentation on how to proceed. This document also covers other installation schemes.


the PyPy team.

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