Mailman 3 October 2013 - pypy-dev

progress with numpy and removal of numpy.py
by Matti Picus 29 Oct '13

29 Oct '13

I have been working to get numfocus benchmarks written for numpy to run on numpypy and pypy https://github.com/numfocus/python-benchmarks The biggest obstacle is actually the need for matplotlib, which is used internally to produce pretty comparisons between different benchmarks. Luckily, Stefan H. Muller did much of what is needed to use matplotlib (non-interactively) with pypy, I have taken over his work and it now lives in two git repos: https://github.com/mattip/numpy on the pypy-hack branch, and https://github.com/mattip/matplotlib master branch. These work, download a nightly pypy, virtualenv, "setup.py install", but there is some missing low-lying-fruit kind of functionality to run the benchmarks, again, in matplotlib. That is the good news, the bad news is that in a perhaps hasty move, I removed lib_pypy/numpy.py since it complicates the numpy install. I fixed tests (one build too late, sorry for the failures), but now people who were used to a nightly pypy being capable of "import numpy" will be disappointed. I did ask on IRC before the change, and got two positive votes, but feel a need for wider consensus. So should we leave the file out, and hopefully encourage people to start trying the pypy-hack branch, or put it back? In an unrelated-but-related issue, should the github repo of numpy be moved to a more pypy-like place (bitbucket.org/pypy)? Matti

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Fwd: LLVM stackmaps
by Armin Rigo 29 Oct '13

29 Oct '13

Hi all, hi mjacob, Someone interested in the port to llvm could have a look at this: http://llvm-reviews.chandlerc.com/file/data/qnievreabgj3qqnco3ax/PHID-FILE-… It adds two different things. The first is stackmaps, which could replace shadowstack/asmgcc for regular translation. The second is patchpoints, which together with stackmaps could potentially be used for a llvm JIT backend's guards. A bientôt, Armin.

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Re: [pypy-dev] error message with windows
by Rami Chowdhury 27 Oct '13

27 Oct '13

On Sunday, October 27, 2013 at 10:04, Trevor Langevin wrote: > This email was where I was sent to by your web master. When you simply press "reply" in some email clients then you will send the reply only to the person who responded to you -- in this case me. Please be sure to use "reply all" to include the pypy-dev mailing list. > > Perhaps you should try downloading and installing the package as it failed three times in a row on two different computers, a win 7 computer and win vista. You really haven't given us enough information to help diagnose the problem. What is the exact error message? Which exact version of Windows is it? Most of the PyPy developers don't use Windows as their main platform so it's not so easy to track down errors, and we would appreciate all the help you can give us. > > On 27/10/2013 2:11 AM, Rami Chowdhury wrote: > > > > On Oct 27, 2013 9:08 AM, "Trevor Langevin" <tlangevin(a)shaw.ca (mailto:tlangevin@shaw.ca)> wrote: > > > > > > It failed in xp, vista, and win 7. > > Can you provide any more details? Screenshots? Every step you took and the exact error messages you receive? > > Also, please reply to the list, not directly to me. > > > > > > > > > On 26/10/2013 4:40 PM, Rami Chowdhury wrote: > > > > > > > > > > > > On Oct 27, 2013 12:37 AM, "Trevor Langevin" <tlangevin(a)shaw.ca (mailto:tlangevin@shaw.ca)> wrote: > > > > > > > > > > On 25/10/2013 3:15 PM, Rami Chowdhury wrote: > > > > > > > > > > > > Hi Trevor, > > > > > > > > > > > > On Friday, October 25, 2013 at 18:20, Trevor Langevin wrote: > > > > > > > > > > > > > > I get an error message while trying to unzip you program "Please insert > > > > > > > the last disk of the multi-disk set?" > > > > > > > > > > > > > > Where do I find this disk, its not included in the installer package? > > > > > > > > > > > > Can you please clarify which installer package you downloaded? > > > > > installer pypy-2.1-win32.zip > > > > > > > > > > > > And which version of Windows are you working on?

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pypi blog shows strange on planet.python.org
by holger krekel 27 Oct '13

27 Oct '13

The last "Making coverage.py faster under pypy" blog shows strangely on the Python planet, check it out: http://planet.python.org/ I guess it's not a good idea to include the docutils comments or so. IIRC this didn't happen before. best, holger

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Using RPython for a semi-statically-typed language
by Ryan Gonzalez 27 Oct '13

27 Oct '13

Hello, I am in need of a little assistance. I am thinking of writing a language in RPython. Now, here is what I want: -Polymorphism(C++) without pointers, i.e., Derived can be implicitly cast to Base I am thinking of picking RPython because of the JIT. However, I am worried about the speed. I know the JIT PyPy generates is fast, but if it's the same speed as PyPy itself, someone would easily pick PyPy or Topaz or the like. My question is: For a somewhat statically-typed language like I am planning, are there any extra optimizations I could add to make the JIT work faster? Since the variables have types, I was thinking there might be a way to make it work faster. Thanks in advance! -- Ryan

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Re: [pypy-dev] error message with windows
by Rami Chowdhury 27 Oct '13

27 Oct '13

On Oct 27, 2013 9:08 AM, "Trevor Langevin" <tlangevin(a)shaw.ca> wrote: > > It failed in xp, vista, and win 7. > Can you provide any more details? Screenshots? Every step you took and the exact error messages you receive? Also, please reply to the list, not directly to me. > > > On 26/10/2013 4:40 PM, Rami Chowdhury wrote: >> >> >> On Oct 27, 2013 12:37 AM, "Trevor Langevin" <tlangevin(a)shaw.ca> wrote: >> > >> > On 25/10/2013 3:15 PM, Rami Chowdhury wrote: >> >> >> >> Hi Trevor, >> >> >> >> On Friday, October 25, 2013 at 18:20, Trevor Langevin wrote: >> >>> >> >>> I get an error message while trying to unzip you program "Please insert >> >>> the last disk of the multi-disk set?" >> >>> >> >>> Where do I find this disk, its not included in the installer package? >> >> >> >> Can you please clarify which installer package you downloaded? >> >> >> >> >> > installer pypy-2.1-win32.zip >> > >> >> And which version of Windows are you working on? > >

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error message with windows
by Trevor Langevin 26 Oct '13

26 Oct '13

Hello, I'm learning 3D printing, and to use Skeinforge it was recommended to download your pypy program to use on a windows machine. I get an error message while trying to unzip you program "Please insert the last disk of the multi-disk set?" Where do I find this disk, its not included in the installer package? Trev I could not log on to your bug tracker site, firefox would not let me view the page as its listed as untrusted.

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Re: [pypy-dev] error message with windows
by Rami Chowdhury 26 Oct '13

26 Oct '13

On Oct 27, 2013 12:37 AM, "Trevor Langevin" <tlangevin(a)shaw.ca> wrote: > > On 25/10/2013 3:15 PM, Rami Chowdhury wrote: >> >> Hi Trevor, >> >> On Friday, October 25, 2013 at 18:20, Trevor Langevin wrote: >>> >>> I get an error message while trying to unzip you program "Please insert >>> the last disk of the multi-disk set?" >>> >>> Where do I find this disk, its not included in the installer package? >> >> Can you please clarify which installer package you downloaded? >> >> > installer pypy-2.1-win32.zip > And which version of Windows are you working on?

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pypy-stm and lock-free data structures
by Andrew Francis 25 Oct '13

25 Oct '13

Hi Folks: I have been reading a few papers on lock-free data structures (and reading some posts on Golang Nuts). I was thinking about writing new a version of stackless.py with Go's select. However I would try to use lock free data structures and techniques in the channel implementation. My questions: 1) Would I be using the pypy-stm branch? (because there is no GIL) 2) Would I write some of this in RPython? (I am assuming yes) 3) Do I have access to low-level atomic operations (I don't think the high-level transaction module gives me access)? 4) Does stackless features work with pypy-stm (I haven't yet been successful in compiling a pypy-stm branch so I can't test this out myself). Cheers, Andrew

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Advertising at your site http://playulty.com
by Claudia Steiner 21 Oct '13

21 Oct '13

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