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PyPy3.3 v5.2 alpha 1 released

We're pleased to announce the first alpha release of PyPy3.3 v5.2. This is the
first release of PyPy which targets Python 3.3 (3.3.5) compatibility.

We would like to thank all of the people who donated to the py3k proposal
for supporting the work that went into this and future releases.

You can download the PyPy3.3 v5.2 alpha 1 release here:


What is PyPy?

PyPy is a very compliant Python interpreter, almost a drop-in replacement for
CPython 2.7.10 and one day 3.3.5. It's fast due to its integrated tracing JIT

We also welcome developers of other dynamic languages to see what RPython
can do for them.

This release supports:

  • x86 machines on most common operating systems except Windows
    (Linux 32/64, Mac OS X 64, OpenBSD, FreeBSD),
  • newer ARM hardware (ARMv6 or ARMv7, with VFPv3) running Linux,
  • big- and little-endian variants of PPC64 running Linux,
  • s390x running Linux

Please try it out and let us know what you think. We welcome feedback, we know
you are using PyPy, please tell us about it!

We'd especially like to thank these people for their contributions to this

Manuel Jacob, Ronan Lamy, Mark Young, Amaury Forgeot d'Arc, Philip Jenvey,
Martin Matusiak, Vasily Kuznetsov, Matti Picus, Armin Rigo and many others.


The PyPy Team


rnbdlnch wrote on 2016-05-31 09:33:

thank you!!!

Unknown wrote on 2016-05-31 12:47:

Many, many thanks!

Unknown wrote on 2016-05-31 13:30:

As a follow-up: Did asyncio work previously? Anyway, it does now as 'yield from' is there. Beautiful!

Anonymous wrote on 2016-06-01 01:52:

Great News!!! Thank you!!!

Robert wrote on 2016-06-03 23:04:

Excited! Can't wait for the 3.4 compatibility!

Sean Vieira wrote on 2016-07-05 19:33:

Hip, hip, huzzah!

Hai Zaar wrote on 2016-07-25 14:59:

Great news guys! Did you consider skipping 3.3/3.4 support all together and going straight for 3.5 compatibility?

Armin Rigo wrote on 2016-07-31 14:22:

We'll be working next on 3.5 support.