Mailman 3 September 2014 - pypy-dev

Pypy3 supporting Python 3.3
by Ram Rachum Sept. 19, 2014

Sept. 19, 2014

Hi everybody, I've been waiting for a a Pypy3 release that supports Python 3.3 for a while now. Today I went on the Pypy site to check whether one has been released. I was happy to see this: the Python3.3 compatible release — PyPy3 2.3.1 I downloaded the new release, but the prompt I got was this: Python 3.2.5 (986752d005bb, Jun 19 2014, 21:38:38) [PyPy 2.3.1 with MSC v.1500 32 bit] on win32 Type "help", "copyright", "credits" or "license" for more information. >>>> It says "… [View More]

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Donation and Sponsorship Inquiry
by Toby Sept. 16, 2014

Sept. 16, 2014

Hello pypy developers , This is Toby from Leawo Software(www.leawo.org) and am working there as a BD Director. Am reaching out here to ask are you interested in software donation or host a giveaway for your users or accept the sponsorship in any form? We can offer basically any software you see on our website mentioned above. Thank you and i look forward to your early reply to know more info and discuss more details. Have a great day! Best regards, Toby from Leawo BD Department … [View More]

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I would like to join PyPy development
by Fabrizio Messina Sept. 12, 2014

Sept. 12, 2014

Hello, I would like to join pypy development, I would like to know if there are some minor issues I can help with to get me started. Regards.

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Re: [pypy-dev] PyPy for analysis?
by William ML Leslie Sept. 10, 2014

Sept. 10, 2014

Ugh, thanks Gmail (: On 8 September 2014 01:33, William ML Leslie <william.leslie.ttg(a)gmail.com> wrote: > On 7 September 2014 21:42, Scott West <scott.gregory.west(a)gmail.com> > wrote: > >> Hello all, >> >> I was looking recently into trying to do some simple static analysis of >> Python programs (to experiment with what is possible), and came across >> PyPy. Reading some of the documentation it seems that PyPy forms a control >> … [View More]flow graph and does some abstract interpretation, which seems to indicate >> that it could be used for other forms of static analysis! >> > > Static analysis of python programs is not difficult, weather you use ast > or code objects. The flow object space really only works on rpython > though, using it to analyse python code generally is not sensible. > > I do think pypy is a great platform for associating axioms with builtin > functions and bytecodes (and sometimes other weird stuff like exception > handling, depending on your analysis) which you would otherwise have to > write by hand. If you want to do that, target the llgraph stage of the > compiler, as there is nothing 'outside' it that you need to rely upon. You > can possibly even generate the app-level analyser from the interpreter, but > in order to do this I had to rewrite the eval loop - I could never figure > out how to extract semantics from the frame object. > > I did at one point have something like a points-to analysis for > interp-level code working (a region polymorphic effects analysis), but it > has bitrotten beyond repair. I would still say pypy is a great place to > start, however. > > >> >> I had a couple questions: >> 1) Would PyPy (seem) to be a good place to start for a general analysis >> framework? If so, would it be of general interest? >> 2) If one doesn't care about code generation, can the build time be >> reduced? I tried just using pyinteractive.py and that _seemed_ to work, >> though even that compiles a few things to start. >> > > By about 40% if you target llgraph by my last count. You could avoid > building the jit, since it should not have any semantic impact. > > > >> 3) What is a good way to get into modifying the internals (adding >> analyses, skipping code gen.)? I have read the chapter of the Open Source >> Architecture book, and some of the documentation pages. >> >> >> > 0) Write lots of tests. > > The existing tests make for good starting points. > > 1) > Start with a very small interpreter, not the full pypy interpreter. IIRC > there was a language called TL which was for testing the JIT, use it as the > target until everything works. > > 2) Dumping the llgraph to disk somewhere - perhaps into a logic or > relational database - will make little experiments easier. > > > > >> >> >> >> I w >> >> >> ould be most grateful if anyone could provide any comments on these >> issues, or pointers to other similar works. >> > > Unfortunately I have no idea what state my work was in when I left it, I > don't even have it on my current box; I would like to get back to it at > some point but Armin suggested I look at better low level languages to > target and I'm still working in that space. > > -- > William Leslie > > Notice: > Likely much of this email is, by the nature of copyright, covered under > copyright law. You absolutely MAY reproduce any part of it in accordance > with the copyright law of the nation you are reading this in. Any attempt > to DENY YOU THOSE RIGHTS would be illegal without prior contractual > agreement. > -- William Leslie Notice: Likely much of this email is, by the nature of copyright, covered under copyright law. You absolutely MAY reproduce any part of it in accordance with the copyright law of the nation you are reading this in. Any attempt to DENY YOU THOSE RIGHTS would be illegal without prior contractual agreement. [View Less]

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pypy 2.4-beta1 (Snow White) is available for testing
by Matti Picus Sept. 8, 2014

Sept. 8, 2014

Get it while it's hot, let me know if something is wrong. https://bitbucket.org/pypy/pypy/downloads Comments and corrections on the release notice would be appreciated http://pypy.readthedocs.org/en/latest/release-2.4.0.html Please test the MacOS version since we have had reports in the past about buildbot compilation problems. Matti

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Redresser ou dynamiser un magasin
by CAS Equipement Sept. 8, 2014

Sept. 8, 2014

If the message doesn't display correctly, click here to see a web-based version. Redresser ou dynamiser un magasin. Difficile à réaliser par les temps qui courent Pour Plus d'Informations Tel: 71 25 50 56 25 14 69 09 21 65 26 13 Quelles sont les opportunités qui s'offrent à vous ? Association avec une société étrangère. (à étudier) Ou Apport total ou partiel de Fonds étrangers. C'est peut être la solution H.G.F.C. spécialiste de la gestion et d'application d'idées … [View More]

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Will pypy reach performance of HHVM?(one Day)
by Phyo Arkar Sept. 7, 2014

Sept. 7, 2014

I am wondering, is it theoretically possible to reach performance of HHVM? >From benchmark game , it is the highest performance of all the dynamic languages.

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PyPy for analysis?
by Scott West Sept. 7, 2014

Sept. 7, 2014

Hello all, I was looking recently into trying to do some simple static analysis of Python programs (to experiment with what is possible), and came across PyPy. Reading some of the documentation it seems that PyPy forms a control flow graph and does some abstract interpretation, which seems to indicate that it could be used for other forms of static analysis! I had a couple questions: 1) Would PyPy (seem) to be a good place to start for a general analysis framework? If so, would it be … [View More]

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Pypy Benchmark of Tornado.
by Phyo Arkar Sept. 5, 2014

Sept. 5, 2014

It just return json document with a few thousand characters (1053 bytes) $siege -c 400 -t 20s -r 2000 http://localhost:9999/js Python 2.7.7: Lifting the server siege... done. Transactions: 14478 hits Availability: 100.00 % Elapsed time: 19.10 secs Data transferred: 14.54 MB Response time: 0.01 secs Transaction rate: 758.01 trans/sec Throughput: 0.76 MB/sec Concurrency: … [View More]

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Python Obfuscation Challenge (fwd)
by Laura Creighton Sept. 4, 2014

Sept. 4, 2014

Not important but I just received this in the mail. Those of you who read python-announce will have got it as well. ------- Forwarded Message Return-Path: <python-announce-list-bounces+lac=openend.se(a)python.org> From: Serge Guelton <serge.guelton(a)telecom-bretagne.eu> To: python-announce-list(a)python.org Subject: Python Obfuscation Challenge Message-ID: <20140904095459.GA13895@lakota> Reply-To: python-list(a)python.org List-Id: Announcement-only list for the Python … [View More]

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