Mailman 3 April 2010 - pypy-dev

mozilla speed website
by Carl Friedrich Bolz 12 Apr '10

12 Apr '10

Hi all, Just wanted to point out the website Mozilla is using to track their JIT's progress (it's quite a bit less polished then what we have, but still): http://arewefastyet.com/ As a reference "jaeger" refers to the new per-method JIT compiler Mozilla is writing, that is supposed to run before tracing kicks in. Right now it doesn't seem to help much, even over interpretation. Cheers, Carl Friedrich

3 4

sympy fails to import
by Ondrej Certik 11 Apr '10

11 Apr '10

Hi, I tried the pypy 1.2 linux binary with our latest sympy git and this is what I got: $/tmp/pypy-1.2/bin/pypy -c "import sympy" 'import site' failed Traceback (most recent call last): File "?", line 33, in run_toplevel File "?", line 369, in run_it File "<string>", line 1, in <module> File "/home/ondrej/repos/sympy/sympy/__init__.py", line 43, in <module> from interactive import init_session, init_printing File "/home/ondrej/repos/sympy/sympy/interactive/__init__.py", line 5, in <module> f, g, h = map(Function, 'fgh') File "/home/ondrej/repos/sympy/sympy/core/multidimensional.py", line 122, in wrapper args[n] = structure_copy(entry) File "/home/ondrej/repos/sympy/sympy/core/multidimensional.py", line 54, in structure_copy return iter_copy(structure) File "/home/ondrej/repos/sympy/sympy/core/multidimensional.py", line 43, in iter_copy l.append(iter_copy(i)) File "/home/ondrej/repos/sympy/sympy/core/multidimensional.py", line 43, in iter_copy l.append(iter_copy(i)) [...] File "/home/ondrej/repos/sympy/sympy/core/multidimensional.py", line 43, in iter_copy l.append(iter_copy(i)) File "/home/ondrej/repos/sympy/sympy/core/multidimensional.py", line 42, in iter_copy if hasattr(i, "__iter__"): RuntimeError: internal error: <RuntimeError object at 0x868c778> It seems like some infinite recursion causes by some incompatibilities between python and pypy. (sympy is tested on all python 2.4, 2.5 and 2.6 and it works). Ondrej

3 7

IO operations capture
by Renjie Xu 11 Apr '10

11 Apr '10

Hello everyone, A simple question: if I want to capture some IO operations in Pypy, do I need to dive into JIT code and modify something there? Thanks, Dustin

3 4

Student application deadline on friday for SoC
by Maciej Fijalkowski 08 Apr '10

08 Apr '10

Hello. All students should submit their application ASAP. There is no point in waiting for friday IMO, especially that you can change it afterwards. Cheers, fijal

4 3

Python Ireland Conference
by Michael Twomey 08 Apr '10

08 Apr '10

Hi all, I'm one of the folks involved in organising the first python Ireland conference, to be held in Dublin on Saturday 17th of July (with sprints on Sunday). We'd love it if someone from PyPy could make it over to give a talk. The audience is your typical spread of python developers, many of whom haven't been exposed to PyPy and what it can do. An introduction to PyPy and the benefits it offers would go down very well. cheers, Michael

2 2

GSoC Project idea
by Tamreen Khan 02 Apr '10

02 Apr '10

Hi everyone, my name is Tamreen Khan (Scriptor on IRC) and I'm interested in working on PyPy for Google's Summer of Code. I have experience in Python, basic knowledge of assembly, and I'm interested in language implementation. Otherwise, I'll have to learn much of the rest myself. I'm currently working on an abstract register allocator (doesn't deal with actual CPU registers) that fijal asked me to write before I apply. However, I would like to start getting figuring out what I would do for my actual summer project. I understand that the JIT is a priority spot for development right now. Also, on the ideas page, I saw that integrating Stackless better is a possible project and I'd like to work on that, although I think someone on IRC was already doing that.Besides what's on the ideas page, does anyone have any suggestions for areas in PyPy that I could pick to create my own idea if needed? -- Thanks, Tamreen Khan

1 0

Some Python Benchmarks
by Joe 31 Mar '10

31 Mar '10

Saw this on reddit, thought it might interest you: http://www.ripton.net/blog/?p=51 Joe

2 1