Mailman 3 February 2007 - pypy-dev

pypy won't compile
by Christian Tismer 25 Feb '07

25 Feb '07

Hi folks, I just tried to build pypy on my mac, but I get an annotation error. [translation:ERROR] AssertionError': built-in class <type 'Struct'> not found in typename_mapping while compiling _compile [translation:ERROR] .. v500 = getattr(self_30, ('w_dict')) [translation:ERROR] .. '(pypy.interpreter.mixedmodule:34)MixedModule.getdictvalue' [translation:ERROR] Processing block: [translation:ERROR] block@3 is a <class 'pypy.objspace.flow.flowcontext.SpamBlock'> [translation:ERROR] in (pypy.interpreter.mixedmodule:34)MixedModule.getdictvalue [translation:ERROR] containing the following operations: [translation:ERROR] v501 = getattr(space_0, ('finditem')) [translation:ERROR] v500 = getattr(self_30, ('w_dict')) [translation:ERROR] v502 = simple_call(v501, v500, w_name_0) [translation:ERROR] v503 = getattr(self_30, ('lazy')) [translation:ERROR] v504 = is_true(v503) [translation:ERROR] --end-- rev. 38657 checked out on OSX, Python 2.5 I installed nothing yet. Maybe something missing? cheers - chris

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GvR having fun in edu-sig
by Laura Creighton 25 Feb '07

25 Feb '07

http://mail.python.org/pipermail/edu-sig/2007-February/007787.html

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Help to put the test results on my user directory
by Leonardo Santagada 23 Feb '07

23 Feb '07

I want to post the results of the test run of the mozilla test suite against my js interpreter... do anyone have any good idea how to do that? My plan was to run the tests outputing to reST and then using rst2html to generate a web page, but any html file that I put on my user dir on svn get shown as a text file on browsers. Another problem is that I would love to be able to present the information in diferent ways, isn't there a way to put all the data collected on the run on a xml file or a database so I can use a template language to format my data? Thanks a lot in advance, Leonardo Santagada

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py lib 0.9.0: py.test, distributed execution, microthreads ...
by holger krekel 22 Feb '07

22 Feb '07

py lib 0.9.0: py.test, distributed execution, greenlets and more ====================================================================== Welcome to the 0.9.0 py lib release - a library aiming to support agile and test-driven python development on various levels. Main API/Tool Features: * py.test: cross-project testing tool with many advanced features * py.execnet: ad-hoc code distribution to SSH, Socket and local sub processes * py.magic.greenlet: micro-threads on standard CPython ("stackless-light") * py.path: path abstractions over local and subversion files * rich documentation of py's exported API * tested against Linux, OSX and partly against Win32, python 2.3-2.5 All these features and their API have extensive documentation, generated with the new "apigen", which we intend to make accessible for other python projects as well. Download/Install: http://codespeak.net/py/0.9.0/download.html Documentation/API: http://codespeak.net/py/0.9.0/index.html Work on the py lib has been partially funded by the European Union IST programme and by http://merlinux.de within the PyPy project. best, have fun and let us know what you think! holger krekel, Maciej Fijalkowski, Guido Wesdorp, Carl Friedrich Bolz

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python.net server issues
by Michael Hudson 21 Feb '07

21 Feb '07

The python.net server is down currently. I'd hoped it would only be a brief downtime, but it's now looking more likely that it'll be down for some time, so can I ask anyone who needs to email me to use this address instead. Cheers, mwh (not happy)

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Running untrusted code in pypy
by Vinj Vinj 20 Feb '07

20 Feb '07

Hi, I've been following pypy dev for several years and this is my first post here. Thanks for all the hard work you guys have put in, it is truly exciting to see what pypy has accomplished so far. I'm currently building a distributing financial trading application that allows users to write trading models in python and lua. I had to introduce lua, since there is no way to completely "secure" user models written in cPython. I'm working with a modified Lua core which allows me to restrict the max memory and max CPU cycles available for each vm. I then have a python-lua bridge code that allows you exchange data and function calls between the two. Would I be able to do something similar with pypy? Would I be able to ensure that no malicious user is able to bring my hosted application down? Are any of you guys going to be at pycon-2007? Thanks, Vineet ____________________________________________________________________________________ Bored stiff? Loosen up... Download and play hundreds of games for free on Yahoo! Games. http://games.yahoo.com/games/front

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PyPy 0.99 is out: new object spaces, optimizations, configuration ...
by Samuele Pedroni 19 Feb '07

19 Feb '07

First thanks to all the people that helped with the release; and to the people that contributed to PyPy so far. ================================================================= pypy-0.99.0: new object spaces, optimizations, configuration ... ================================================================= Welcome to the PyPy 0.99.0 release - a major snapshot and milestone of the last 8 months of work and contributions since PyPy-0.9.0 came out in June 2006! Main entry point for getting-started/download and documentation: http://codespeak.net/pypy/dist/pypy/doc/index.html Further below you'll find some notes about PyPy, the 0.99.0 highlights and our aims for PyPy 1.0. have fun, the PyPy team, Samuele Pedroni, Carl Friedrich Bolz, Armin Rigo, Michael Hudson, Maciej Fijalkowski, Anders Chrigstroem, Holger Krekel, Guido Wesdorp and many others: http://codespeak.net/pypy/dist/pypy/doc/contributor.html What is PyPy? ================================ Technically, PyPy is both a Python Interpreter implementation and an advanced Compiler, actually a framework for implementing dynamic languages and generating virtual machines for them. The Framework allows for alternative frontends and for alternative backends, currently C, LLVM and .NET. For our main target "C", we can can "mix in" different Garbage Collectors and threading models, including micro-threads aka "Stackless". The inherent complexity that arises from this ambitious approach is mostly kept away from the Python interpreter implementation, our main frontend. Socially, PyPy is a collaborative effort of many individuals working together in a distributed and sprint-driven way since 2003. PyPy would not have gotten as far without the coding, feedback and general support from numerous people. Formally, many of the current developers are involved in executing an EU contract with the goal of exploring and researching new approaches to Language/Compiler development and software engineering. This contract's duration is about to end March 2007 and we are working and preparing the according final review which is scheduled for May 2007. Key 0.99.0 Features ===================== * new object spaces: - Tainting: a 270-line proxy object space tracking and boxing sensitive information within an application. A tainted object is completely barred from crossing an I/O barrier, such as writing to files, databases or sockets. This allows to significantly reduce the effort of e.g. security reviews to the few places where objects are "declassified" in order to send information across I/O barriers. - Transparent proxies: allow to customize both application and builtin objects from application level code. Works as an addition to the Standard Object Space (and is translatable). For details see http://codespeak.net/pypy/dist/pypy/doc/proxy.html * optimizations: - Experimental new optimized implementations for various built in Python types (strings, dicts, lists) - Optimized builtin lookups to not require any dictionary lookups if the builtin is not shadowed by a name in the global dictionary. - Improved inlining (now also working for higher level backends) and malloc removal. - twice the speed of the 0.9 release, overall 2-3 slower than CPython * High level backends: - It is now possible to translate the PyPy interpreter to run on the .NET platform, which gives a very compliant (but somewhat slow) Python interpreter. - the JavaScript backend has evolved to a point where it can be used to write AJAX web applications with it. This is still an experimental technique, though. For demo applications see: http://play1.codespeak.net:8008/ * new configuration system: There is a new comprehensive configuration system that allows fine-grained configuration of the PyPy standard interpreter and the translation process. * new and improved modules: Since the last release, the signal, mmap, bz2 and fcntl standard library modules have been implemented for PyPy. The socket, _sre and os modules have been greatly improved. In addition we added a the pypymagic module that contains PyPy-specific functionality. * improved file implementation: Our file implementation was ported to RPython and is therefore faster (and not based on libc). * The stability of stackless features was greatly improved. For more details see: http://codespeak.net/pypy/dist/pypy/doc/stackless.html * RPython library: The release contains our emerging RPython library that tries to make programming in RPython more pleasant. It contains an experimental parser generator framework. For more details see: http://codespeak.net/pypy/dist/pypy/doc/rlib.html * improved documentation: - extended documentation about stackless features: http://codespeak.net/pypy/dist/pypy/doc/stackless.html - PyPy video documentation: eight hours of talks, interviews and features: http://codespeak.net/pypy/dist/pypy/doc/video-index.html - technical reports about various aspects of PyPy: http://codespeak.net/pypy/dist/pypy/doc/index-report.html The entry point to all our documentation is: http://codespeak.net/pypy/dist/pypy/doc/index.html What about 1.0? ====================== In the last week leading up to the release, we decided to go for tagging the release as 0.99.0, mainly because we have some efforts pending to integrate and complete research and coding work: * the JIT Compiler Generator is ready, but not fully integrated with the PyPy interpreter. As a result, the JIT does not give actual speed improvements yet, so we chose to leave it out of the 0.99 release: the result doesn't meet yet the speed expectations that we set for ourselves - and which some blogs and people have chosen as the main criterium for looking at PyPy. * the extension enabling runtime changes of the Python grammar is not yet integrated. This will be used to provide Aspect-Oriented Programming extensions and Design by Contract facilities in PyPy. * the Logic object space, which provides Logic Variables in PyPy, needs to undergo a bit more testing. A constraint problem solver extension module is ready, and needs to be integrated with the codebase. PyPy 0.99 is the start for getting to 1.0 end of March 2007, which we intend to become a base for a longer (and more relaxed :) time to come. Funding partners and organisations ===================================================== PyPy development and activities happen as an open source project and with the support of a consortium partially funded by a 28 months European Union IST research grant. The full partners of that consortium are: Heinrich-Heine University (Germany), Open End (Sweden) merlinux GmbH (Germany), tismerysoft GmbH (Germany) Logilab Paris (France), DFKI GmbH (Germany) ChangeMaker (Sweden), Impara (Germany)

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translating classes to javascript
by John Smith 18 Feb '07

18 Feb '07

Hi list, I'm fairly new to pypy and was only doing some experimenting with the javascript translator so far. First of all let me say that the whole project is pretty amazing! After translating a couple of functions I tried translating a class, but was unsuccessful so far but since the docs mention supporting inheritance I guess this should be possible. Is it? For instance if I have in RPython the following: class test: def __init__( self, value ): self.value = value def meth1( self ): return self.value def meth2( self ): do_something_which_is_translatable( ) then how do I get the corresponding javascript code? Since the docs say jscompile should be invoked by 'jscompile module function_names' I'm kind of lost. The same holds for rpython2javascript it expects a list of functions. Any insight or comment would be very helpful. --------------------------------- Need Mail bonding? Go to the Yahoo! Mail Q&A for great tips from Yahoo! Answers users.

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Status of pypy-c under Windows
by Antonio Cuni 14 Feb '07

14 Feb '07

Hi all! As we agreed on #pypy-sync, I've spent the last days in investigating & testing the translation of pypy-c under Windows. My box runs Windows XP SP 1 under vmware. To get a C compiler I installed the C++ package of Visual Studio .NET 2003; maybe it could work also with other version of Visual Studio, I don't know. Surprisingly enough, the translation of pypy-c worked out of the box :-). I only had to install the windows version of boehm using the howto in the docstring of goal/win32/gc_path_windows.py, then ./translate. Then, I ran the lib-python tests against pypy-c.exe. The results are here: http://codespeak.net/~antocuni/pypy-c-win32-results/ Some of the failures are quite easy to explain (for example, test_thread fails because threading was disabled :-)), some other are very strange. Btw, more than 90% of tests passes. To run the tests I had to manually disable test_mailbox.py, because it couldn't cleanup the @test directory it creates and this caused next tests to fail. I tried to investigate a bit in that direction, then I remembered that windows sucks and I gave up :-). ciao Anto

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news from the logilab internal sprint
by Alexandre Fayolle 14 Feb '07

14 Feb '07

Hi, We are having an internal sprint at logilab this week. This mail is to keep you posted about our progress. The WP10 work is in good shape. Adrien and Sylvain managed to translate pypy with the grammar modifications, but the merging will take some time, I think. They are also working on a pylint checker for rpython which hopefully will help beginners trying to produce rpython catch some problems faster than by trying to translate their code. Coming up for the second half of the sprint is the definition of an API for the grammar changes, more stuff for "rpylint" and work on the interim report. WP09 is making rapid progress (with the writing of a rpython module for the constraint library, which will be the basis for a mixed module for CSP) (Aurélien, Alexandre). Regarding WP11, Ludovic and David have made good progress on the report. Ludovic has done some work to write a busybox-ish tool in rpython and an HTTP server. -- Alexandre Fayolle LOGILAB, Paris (France) Formations Python, Zope, Plone, Debian: http://www.logilab.fr/formations Développement logiciel sur mesure: http://www.logilab.fr/services Informatique scientifique: http://www.logilab.fr/science Reprise et maintenance de sites CPS: http://www.migration-cms.com/

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pypy-dev February 2007