Mailman 3 June 2012 - pypy-dev

Pypy 1.9 with CLI and JVM backends
by David Naylor June 12, 2012

June 12, 2012

Hi, I'm in the process of preparing the port for FreeBSD of pypy-1.9. The patches required to run under FreeBSD are minimal (1 submittable patch, 1 specific patch not applicable for pypy). Thanks! I was just wondering on the state of CLI and JVM backends in pypy-1.9. Does translating work for either of those backends? I failed to translate pypy using the CLI backend with error "TypeError: Bad overloading". I recall that was perhaps a 64bit vs 32bit error and that, maybe, translating for CLI will work in a 32bit environment? Regards

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Ground Board Display: Neu Outdoor-Display bei Vedi
by VEDI June 12, 2012

June 12, 2012

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problems moving to PyPy 1.9 and GLIBC_2.7
by Cameron Sparr June 12, 2012

June 12, 2012

Hi all, I'm trying to run PyPy 1.9 (Was running 1.8 just fine) but get the message: /lib64/libc.so.6: version `GLIBC_2.7' not found (required by ./pypy) I tried downloading and building lib C version 2.7 but this causes a host of other problems on my system. Was moving to Lib C 2.7 just a difference in the development machine being used to build the PyPy binary? Any possibility of finding a PyPy 1.9 version that does not require GLIBC_2.7 (not sure what exact version was required by PyPy 1.8) Best, Cameron -- Cameron Sparr SIParCS Intern NCAR \ CISL \ User Services Section (USS) phone: 303-497-2443 mobile: 503-327-5964 email: csparr(a)ucar.edu

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PyPy-Sprint Leipzig 2012 sign up
by Jasper Schulz June 11, 2012

June 11, 2012

Hey guys, my name is Jasper and I'd like to come to Leipzig. I think I'm gonna do couch-surfing at some friends, so there is no need for any hotel for me. I'm not sure when I'll arrive, maybe I can travel with Christian Tismer, since he lives round the corner as far as I know. So, I'm really looking forward to meet you and get my brain crushed :-). Regards Jasper

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cppyy use case question
by Alex Pyattaev June 10, 2012

June 10, 2012

Hello, I am considering trying cppyy on a large project, and I have a question. I need to be able to add a reference to Python objects into the c++ classes. In essence: #Python code: x="My python object" inst = cpp_class() inst.add_data(x) inst.do_stuff()#This does not modify x in any way z=inst.get_data(x) So, cpp_class acts as a container for python objects, and it does not need to know what kind of object is inside. I was able to make it work with pypy through basic C API, using SWIG and typemaps by mapping void* into PyObject*, but that is somewhat hackish. I am now thinking how would the same logic look with cppyy extension. PS: building cppyy is pain in the ass... You guys seriously need to think about build logs =)

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merge of win-ordinal branch
by Matti Picus June 9, 2012

June 9, 2012

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update (+patch) on embedding pypy
by Roberto De Ioris June 9, 2012

June 9, 2012

Hi everyone, i have finally managed to have a pypy plugin into uWSGI via libpypy-c. The first step was exporting a bunch of symbols in libpypy-c: "RPython_StartupCode", "pypy_g_ObjSpace_startup", "pypy_g_call_startup", "pypy_g_State_startup", "pypy_g_Module_startup", "pypy_g_pypy_module_cpyext_state_State" pypy_g_ObjSpace_startup and pypy_g_Module_startup are not strictly required, i have used them only for debugging some very specific areas. Attached there is a patch for latest tip. After that, i have defined a Py_Initialize() replacement: http://projects.unbit.it/uwsgi/browser/plugins/python/python_plugin.c#L8 and placed a bunch of #ifdef for unsupported functions (like PyFile_FromFile) Finally i have built libpypy with pypy translate.py -Ojit --shared and the uWSGI plugin with LDFLAGS="-L." pypy-c uwsgiconfig.py --plugin plugins/pypy core (LDFLAGS is used as i have libpypy-c in the current dir) Run uWSGI with the welcome app (and a bunch of processes): uwsgi --http-socket :8080 --plugin pypy --module welcome --master --processes 8 Incredibly the whole uwsgi api (that it is pretty complex, involving tons of c code) works flawlessly as well as the custom wsgi.input object (the whole upload test suite passes). Running python threads from the WSGI app works too, but mapping python threads to already available pthreads is a no go (all explodes, i will investigate on that) Importing applications as modules works normally, but importing via file requires implementing a bunch of c-api in pypy (i will address that soon) virtualenv, sys.argv and setting programname is not supported (no c api available) i can get rid of this too in the next few days. Important thing: i have tested it only on OSX -- Roberto De Ioris http://unbit.it

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Placement- Site- Analysis
by Ryan Drake June 8, 2012

June 8, 2012

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PyPy 1.9 - Yard Wolf
by Maciej Fijalkowski June 8, 2012

June 8, 2012

==================== PyPy 1.9 - Yard Wolf ==================== We're pleased to announce the 1.9 release of PyPy. This release brings mostly bugfixes, performance improvements, other small improvements and overall progress on the `numpypy`_ effort. It also brings an improved situation on Windows and OS X. You can download the PyPy 1.9 release here: http://pypy.org/download.html .. _`numpypy`: http://pypy.org/numpydonate.html What is PyPy? ============= PyPy is a very compliant Python interpreter, almost a drop-in replacement for CPython 2.7. It's fast (`pypy 1.9 and cpython 2.7.2`_ performance comparison) due to its integrated tracing JIT compiler. This release supports x86 machines running Linux 32/64, Mac OS X 64 or Windows 32. Windows 64 work is still stalling, we would welcome a volunteer to handle that. .. _`pypy 1.9 and cpython 2.7.2`: http://speed.pypy.org Thanks to our donors ==================== But first of all, we would like to say thank you to all people who donated some money to one of our four calls: * `NumPy in PyPy`_ (got so far $44502 out of $60000, 74%) * `Py3k (Python 3)`_ (got so far $43563 out of $105000, 41%) * `Software Transactional Memory`_ (got so far $21791 of $50400, 43%) * as well as our general PyPy pot. Thank you all for proving that it is indeed possible for a small team of programmers to get funded like that, at least for some time. We want to include this thank you in the present release announcement even though most of the work is not finished yet. More precisely, neither Py3k nor STM are ready to make it in an official release yet: people interested in them need to grab and (attempt to) translate PyPy from the corresponding branches (respectively ``py3k`` and ``stm-thread``). .. _`NumPy in PyPy`: http://pypy.org/numpydonate.html .. _`Py3k (Python 3)`: http://pypy.org/py3donate.html .. _`Software Transactional Memory`: http://pypy.org/tmdonate.html Highlights ========== * This release still implements Python 2.7.2. * Many bugs were corrected for Windows 32 bit. This includes new functionality to test the validity of file descriptors; and correct handling of the calling convensions for ctypes. (Still not much progress on Win64.) A lot of work on this has been done by Matti Picus and Amaury Forgeot d'Arc. * Improvements in ``cpyext``, our emulator for CPython C extension modules. For example PyOpenSSL should now work. We thank various people for help. * Sets now have strategies just like dictionaries. This means for example that a set containing only ints will be more compact (and faster). * A lot of progress on various aspects of ``numpypy``. See the `numpy-status`_ page for the automatic report. * It is now possible to create and manipulate C-like structures using the PyPy-only ``_ffi`` module. The advantage over using e.g. ``ctypes`` is that ``_ffi`` is very JIT-friendly, and getting/setting of fields is translated to few assembler instructions by the JIT. However, this is mostly intended as a low-level backend to be used by more user-friendly FFI packages, and the API might change in the future. Use it at your own risk. * The non-x86 backends for the JIT are progressing but are still not merged (ARMv7 and PPC64). * JIT hooks for inspecting the created assembler code have been improved. See `JIT hooks documentation`_ for details. * ``select.kqueue`` has been added (BSD). * Handling of keyword arguments has been drastically improved in the best-case scenario: proxy functions which simply forwards ``*args`` and ``**kwargs`` to another function now performs much better with the JIT. * List comprehension has been improved. .. _`numpy-status`: http://buildbot.pypy.org/numpy-status/latest.html .. _`JIT hooks documentation`: http://doc.pypy.org/en/latest/jit-hooks.html JitViewer ========= There will be a corresponding 1.9 release of JitViewer which is guaranteed to work with PyPy 1.9. See the `JitViewer docs`_ for details. .. _`JitViewer docs`: http://bitbucket.org/pypy/jitviewer Cheers, The PyPy Team

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support for ordinals on windows in _ffi and ctypes
by Matti Picus June 7, 2012

June 7, 2012

I have started a branch to support app level finding functions by ordinals: win-ordinal I would be happy for any comments as it progresses. Currently, I have added tests and ordinal handling to rlib/libffi.py and module/_ffi if I run tests one at a time, they all pass, but running in one pass makes test_ztranslation fail, here is the traceback https://gist.github.com/2882909. Any thoughts? Matti

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