Mailman 3 September 2012 - pypy-dev

PyPy at FOSDEM
by Maciej Fijalkowski Sept. 19, 2012

Sept. 19, 2012

Hi Just a quick question - is anyone from the team planning on attending FOSDEM in Brussels on 2-3rd of Feb 2013? Cheers, fijal

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Flow graphs, backends and JIT
by haael Sept. 16, 2012

Sept. 16, 2012

OK, I read almost all the documentation I found on the web page. But I still don't understand few things. There are 3 layers in the whole picture. The user application written in Python, the Python interpreter written in RPython and the RPython interpreter itself. 1. Where do flow graphs are generated from? Is it the representation of the user application, or the interpreter? 2. Where does the JIT fit here? I read it traces the execution of the iterpreter and indirectly the user … [View More]

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rlib/runicode, python 3 and pypy
by Maciej Fijalkowski Sept. 12, 2012

Sept. 12, 2012

Hi This is mostly a mail to Antonio, but I'm interested in everyone's opinion. Al rlib/runicode.py differs on py3k branch from the default. IMO this is a very very bad idea. This is a push towards more convoluted interpreter/translator interaction rather than less. Also it makes RPython a less defined language rather than more. I see the following options: * decide utf-8 encoding in RPython is a bad idea alltogether * move codec somewhere else or patch unicodeobject in python 3 and decide to … [View More]

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build error with --shared flag
by Max Lavrenov Sept. 11, 2012

Sept. 11, 2012

Hello When i tried build master pypy with --shared flag i got error: [translation:ERROR] /usr/bin/ld: /usr/lib/libffi.a(ffi64.o): relocation R_X86_64_32S against `.rodata' can not be used when making a shared object; recompile with -fPIC [translation:ERROR] /usr/lib/libffi.a: could not read symbols: Bad value [translation:ERROR] collect2: ошибка: выполнение ld завершилось с кодом возврата 1 [translation:ERROR] make: *** [libpypy-c.so] Ошибка 1 [translation:ERROR] """) … [View More]

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Windows 7 64-bit Problems installing pip or virutalenv
by Gelonida N Sept. 9, 2012

Sept. 9, 2012

Hi, Just doing some experiments with PyPy I'd like to install pip / virutalenv. With pypy and Linux no problem With CPython (32 bit) and windows 7 64-bit no problem With pypy and Windows 7 64-bit no success. Any hints ???? I even tried it with disabling the antivirus. In fact so far I couldn't download and install any package successfully. Perhaps somebody could recommend a very simple package as a starting poimt. Experimenting without virtualenv is a serious pain. Installing pypy and … [View More]easy_install (setuptools) seems to work Installing virtualenv / pip always fails. I'm running out of ideas. SO any help is welcome. Below the details. Step 1: Download and unpack pypy ------------------------------------- I open a cmd window I downloaded pypy1.9.0 and extracted it to a directory (%PYPY_PATH%) Step 2: Installing easy_install (setup_tools) ----------------------------------------------- I download http://python-distribute.org/distribute_setup.py and install it with cd %PYPY_PATH% pypy.exe distribute_setup.py This seems to work basically. However a really strange message is: Don't have permissions to write C:\test\pypy-1.9\site-packages\setuptools-0.6c11-py2.7.egg-info, skipping Not sure, where this is coming from. I assume, that another thread / process didn't close the file properly Just for fun I tried this also with a privileged window. Same problem: Step 3: Try to install virtualenv ------------------------------------- I tried following steps in a normal cmd window awith a cmd window with admin privileges. When starting virtualenv from a admin-cmd window. Then I get following output: C:\test>pypy-1.9.2\bin\easy_install.exe virtualenv Searching for virtualenv Reading http://pypi.python.org/simple/virtualenv/ Reading http://www.virtualenv.org Reading http://virtualenv.openplans.org Best match: virtualenv 1.8.2 Downloading http://pypi.python.org/packages/source/v/virtualenv/virtualenv-1.8.2.tar.gz… Processing virtualenv-1.8.2.tar.gz Writing c:\users\XXXXX\appdata\local\temp\easy_install-ubcvxv\virtualenv-1.8.2\setup.cfg Running virtualenv-1.8.2\setup.py -q bdist_egg --dist-dir c:\users\XXXXX\appdata\local\temp\easy_install-ubcvxv\virtualenv-1.8.2\egg-dist-tmp-cd7mao warning: no previously-included files matching '*' found under directory 'docs\_templates' warning: no previously-included files matching '*' found under directory 'docs\_build' No eggs found in c:\users\XXXX\appdata\local\temp\easy_install-ubcvxv\virtualenv-1.8.2\egg-dist-tmp-cd7mao (setup script problem?) C:\test> Step 4) Trying to Install pip ------------------------------- Installing pip fails as well. C:\test>pypy-1.9.2\bin\easy_install.exe pip Searching for pip Reading http://pypi.python.org/simple/pip/ Reading http://www.pip-installer.org Reading http://pip.openplans.org Best match: pip 1.2.1 Downloading http://pypi.python.org/packages/source/p/pip/pip-1.2.1.tar.gz#md5=db8a6d8a4… Processing pip-1.2.1.tar.gz Writing c:\users\XXXX\appdata\local\temp\easy_install-rxf5c5\pip-1.2.1\setup.cfg Running pip-1.2.1\setup.py -q bdist_egg --dist-dir c:\users\XXXX\appdata\local\temp\easy_install-rxf5c5\pip-1.2.1\egg-dist-tmp-an2nbn warning: no files found matching '*.html' under directory 'docs' warning: no previously-included files matching '*.txt' found under directory 'docs\_build' no previously-included directories found matching 'docs\_build\_sources' No eggs found in c:\users\XXXX\appdata\local\temp\easy_install-rxf5c5\pip-1.2.1\egg-dist-tmp-an2nbn (setup script problem?) error: c:\users\XXXX\appdata\local\temp\easy_install-rxf5c5\pip-1.2.1\docs\index.txt: The process cannot access the file because it is being used by another p rocess. C:\test> If I start, easy_install as normal user, then I get first a popu asking me if I want to allow easy_install to make changes to my computer. then a new cmd window opens with some messages (dowmloading, . . . ) then the window disappears and then I get a popup, that windows is not sure my program installed correctly [View Less]

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Locals clearing in RPython
by Timothy Baldridge Sept. 6, 2012

Sept. 6, 2012

Let's imagine that I have some code like the following in RPython: def wrapper_func(arg1, arg2): return inner_func(arg2) def inner_func(x): for y in range(x): # do something here pass return -1 bigint = 1000000 wrapper_func(list(range(bigint)), bigint) The problem here is that arg1 is going to be held onto in (in CPython at least) until inner_func returns. This means that the list created on the invocation of wrapper_func is going to stick around during the entire … [View More]

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STM and concurrent GC
by Wiktor Mizdal Sept. 6, 2012

Sept. 6, 2012

Hi, will STM can help implement concurrent garbage collector? Wiktor Mizdal

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PyPy got an Editors' Choice award !
by Vera Zubor - DownloadAtlas.com Sept. 6, 2012

Sept. 6, 2012

Hello PyPy Development Team, we would like to remind you and announce an Editor's Choice award to PyPy Current method of awarding is chosen by us to reflect the high quality of your software product. More informations at http://www.downloadatlas.com/open-source-eac5cece.html#awards Important Note: If you have any questions, please don't hesitate to contact us. Best wishes, Vera Zubor - editor e-mail: editor(a)downloadatlas.com -----------------------------------------------------… [View More]

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STM "version 2"
by Armin Rigo Sept. 5, 2012

Sept. 5, 2012

Hi all, To keep you informed of the progress on STM: In the middle of August I found a potentially better approach to STM, which uses copies of objects more extensively (something which is neither natural nor easy to do in C/C++, which is probably why it was not researched before). The main change is that all globally visible objects are and stay read-only. A write that occurs in theory on one such object is --- like before --- done inside a local copy of the object. The difference with … [View More]

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pypy arm progress
by Wiktor Mizdal Sept. 5, 2012

Sept. 5, 2012

Hi, in "Almost There - PyPy's ARM Backend" article is "The incomplete list of open topics": -We are looking for a better way to translate PyPy for ARM, than the one describe above. I am not sure if there currently is hardware with enough memory to directly translate PyPy on an ARM based system, this would require between 1.5 or 2 Gig of memory. A fully QEMU based approach could also work, instead of Scratchbox2 that uses QEMU under the hood. -Test the JIT on different hardware. -Experiment … [View More]

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