Hi Norbert, It is not easy to answer questions like that. We have not tested every Python program with every Python version. Why don't you just try yourself? If you run into problems when you try with PyPy, feel free to ask for advice here. But OK, I happen to have Sunfish and four different 32-bit Python versions installed on my computer. Here are the results I got when I timed the Sunfish function test.selfplay(): PyPy 2.2.1: 106.2 s PyPy 3.2.1 beta: 395.2 s CPython 2.7.6: 363.9 s CPython 3.4.0 RC2: 426.5 s So it seems that you can use any of these four, but PyPy 2.2.1 is fastest. (I think the author of Sunfish has optimized the code using PyPy 2.) And let's get the terminology straight: Python is a language. PyPy, CPython, IronPython and Jython are different implementations of that language. The software that you call Python 3.3.4 should be called CPython 3.3.4. Cheers, Johan On 2014-03-07 07:45, norbert.raimund.leisner@arcor.de wrote:
Hello Maciej, hello support-team!
my hardware is : Intel Core 2 Duo E6600 (2x2,4 Ghz) - 1 GB RAM - 512 MB graphical card operation system: Windows XP SP3 32-bit
Would yoru recommendation be PyPy 3 2.1 beta 1 win32 or is Python 3.3.4 x86 MSI at this case your first choice? http://www.python.org/download/releases/3.3.4/
I use it for Sunfish https://github.com/thomasahle/sunfish/ and Shatranj http://code.google.com/p/shatranjpy/ (two chess engines) cf. WinBoard/CECP-protocol http://www.open-aurec.com/wbforum/WinBoard/engine-intf.html and WinBoard-GUI http://www.open-aurec.com/wbforum/viewtopic.php?f=19&t=51528
Best wishes, Norbert
----- Original Nachricht ---- Von: Maciej Fijalkowski <fijall@gmail.com> An: norbert.raimund.leisner@arcor.de Datum: 28.02.2014 08:39 Betreff: Re: [pypy-dev] pypy 2.2.1 win32
On Fri, Feb 28, 2014 at 9:03 AM, <norbert.raimund.leisner@arcor.de> wrote:
Hello support-team,
I have installed pypy 2.2.1 win32 for my OS Windows XP SP 3 -32 bit, Python 2.7, MSI Microsoft Visual C++ 2008 SP1 Redistributable Package (x86).
Now my question: Must be Python 2.7 deinstalled and replaced by Pythonv2.7.6 or not?
As far as I understand your question, the answer is no. Various versions of Python (and PyPy) can happily coexist next to each other.
Cheers, fijal