Mailman 3 June 2008 - pypy-dev

Vilnius/Post EuroPython PyPy Sprint 10-12th of July
by Antonio Cuni 16 Jun '08

16 Jun '08

======================================================== Vilnius/Post EuroPython PyPy Sprint 10-12th of July ======================================================== The PyPy team is sprinting at EuroPython again and we invite you to participate in our 3 day long sprint at the conference hotel - Reval Hotel Lietuva. If you plan to attend the sprint we recommend you to listen to the PyPy technical talks (`EuroPython schedule`_) during the conference since it will give you a good overview of the status of development. On the morning of the first sprint day (10th) we will also have a tutorial session for those new to PyPy development. As 3 days is relatively short for a PyPy sprint we suggest to travel back home on the 13th if possible (but it is ok to attend less than 3 days too). ------------------------------ Goals and topics of the sprint ------------------------------ There are many possible and interesting sprint topics to work on - here we list some possible task areas: * try out Python programs and fix them or fix PyPy or fix performance bottlenecks * some JIT improvement work * port the stackless transform to ootypesystem * other interesting stuff that you would like to work on ...;-) ------------ Registration ------------ If you'd like to come, please subscribe to the `pypy-sprint mailing list`_ and drop a note about your interests and post any questions. More organisational information will be sent to that list. Please register by adding yourself on the following list (via svn): http://codespeak.net/svn/pypy/extradoc/sprintinfo/post-ep2008/people.txt or on the pypy-sprint mailing list if you do not yet have check-in rights: http://codespeak.net/mailman/listinfo/pypy-sprint --------------------------------------- Preparation (if you feel it is needed): --------------------------------------- * read the `getting-started`_ pages on http://codespeak.net/pypy * for inspiration, overview and technical status you are welcome to read `the technical reports available and other relevant documentation`_ * please direct any technical and/or development oriented questions to pypy-dev at codespeak.net and any sprint organizing/logistical questions to pypy-sprint at codespeak.net * if you need information about the conference, potential hotels, directions etc we recommend to look at http://www.europython.org. We are looking forward to meet you at the Vilnius Post EuroPython PyPy sprint! The PyPy team .. See also .. .. _getting-started: http://codespeak.net/pypy/dist/pypy/doc/getting-started.html .. _`pypy-sprint mailing list`: http://codespeak.net/mailman/listinfo/pypy-sprint .. _`the technical reports available and other relevant documentation`: http://codespeak.net/pypy/dist/pypy/doc/index.html .. _`EuroPython schedule`: http://europython.org/timetable

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spotting pypy segfault
by Maciej Fijalkowski 16 Jun '08

16 Jun '08

I think this is the one about finalizers, because they raise errors, but that might also be something with threads or anything, I don't know. What to do: 1. Have pypy-c with threads (hybrid gc, faassen, threads, allworkingmodules for me, svn v 55678) 2. Check out sqlalchemy svn checkout http://svn.sqlalchemy.org/sqlalchemy/trunk sqlalchemy go inside this directory (sqlalchemy), and run: PYTHONPATH=test gdb --args pypy-c --oldstyle test/ext/orderinglist.py my gdb got confused, but hopefully you'll have better chance. eventually, if this doesn't work (like you have different sqlalchemy installed), do (inside sqlalchemy dir) python2.4 setup.py develop, eventually as root depending on your system conf. Cheers and have fun debugging, fijal

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Talks at the EP
by Maciej Fijalkowski 15 Jun '08

15 Jun '08

Jacob: can you tell me more or less exactly what your talk will be about? I would like to prepare mine at some point soon and it would be super-cool if they won't overlap.

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Beijing, China
by Lalo Martins 11 Jun '08

11 Jun '08

This is an open-ended invitation. If any pypy developers or contributors find themselves in Beijing or nearby in the near future, drop me an email so we can arrange a talk or a dinner with the local geeks. We'll also be happy to show you around, help find hotel, and the usual necessities. best, Lalo Martins -- So many of our dreams at first seem impossible, then they seem improbable, and then, when we summon the will, they soon become inevitable. ----- http://lalomartins.info/ GNU: never give up freedom http://www.gnu.org/

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A freidn of mine is organising a computer security conference in Austria
by Laura Creighton 10 Jun '08

10 Jun '08

He's looking for speakers and sponsors. He wanted to know whom we knew at IBM Zurich Security, and anybody else that he should probably invite to speak because they are interesting. So -- the people in Dresden? Anybody have a list of names and emails I could give him? Laura

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django performance analysis
by Maciej Fijalkowski 09 Jun '08

09 Jun '08

Analysis of pypy-c --oldstyle runtests.py --settings=settings -v 2 using new _lsprof module These are analysis of a single test suite (test_client). In general, ctypes costs are bigger (due to teardown/setup which takes most of time). http://codespeak.net/~fijal/django-calltree.png Hereby I'll try to rewrite parts of ctypes (especially calling and some basic objects) in RPython. PS. I can upload kcachegrind input file if someone is interested.

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dead loop compilation
by Yun Mao 09 Jun '08

09 Jun '08

Hi, I was playing with pypy svn branch, and one of the first functions i tried was the following: def f(): while 1: pass it looks like pypy was trying to evaluate this and has gone dead too. Is this what I suppose to see? thanks, Yun

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Problem on OOType for jspypy
by Leonardo Santagada 05 Jun '08

05 Jun '08

Directly after annotation the targetjsstandalone.py gives an error on ootype. I cant see what might be the problem, and yes the code is translating to c fine. Here I am talking about the new code on a branch, but hopefully when antocuni and others in europe read this the code is going to be merged to trunk (if it is not wait a little for it). the error is: [translation:ERROR] Exception: unexpected prebuilt constant: <staticmethod object at 0x5937b0> but the full trace is on: http://paste.pocoo.org/show/62193/ thanks and I will be tomorrow on the channel. -- Leonardo Santagada

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