Mailman 3 September 2015 - pypy-dev

pypy on ppc
by Victor Taylor 14 Sep '15

14 Sep '15

Hi, I was looking to run pypy on a PPC64 machine but realized from the install page that pypy support on PPC is stalled. Looking at the sources I found that there is a branch for PPC and that there have been some recent commits on that branch. I would like to know the approximate timeframe when pypy on PPC be available? Also could I build the current PPC branch and use the binary for the time being till the complete port is available (I am assuming the branch builds and gives me a binary without some features which are still under development; I initially just need to use basic functionality)? Thanks,Victor

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pypy on ppc
by Victor Taylor 14 Sep '15

14 Sep '15

Hi, I was looking to run pypy on a PPC64 machine but realized from the install page that pypy support on PPC is stalled. Looking at the sources I found that there is a branch for PPC and that there have been some recent commits on that branch. I would like to know the approximate timeframe when pypy on PPC be available? Also could I build the current PPC branch and use the binary for the time being till the complete port is available (I am assuming the branch builds and gives me a binary without some features which are still under development; I initially just need to use basic functionality)? Thanks,Victor

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pypy segment fault bug
by 于大伟 14 Sep '15

14 Sep '15

hi manager: i use pypy do something. i found a bug when i run my code! Fatal error in cpyext, CPython compatibility layer, calling PyTuple_New Either report a bug or consider not using this particular extension <MemoryError object at 0x7f71cb01a7c0> RPython traceback: File "pypy_module_pypyjit_interp_jit.c", line 340, in portal_5 File "pypy_interpreter_pyopcode.c", line 3578, in handle_bytecode__AccessDirect_None File "pypy_interpreter_pyopcode.c", line 5853, in dispatch_bytecode__AccessDirect_None Segmentation fault (core dumped) and i found pypy can not use the redis module, i use pypy 2.6. https://github.com/andymccurdy/redis-py

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Could PyPy have finalize() method or could be initialized thread by thread ?
by Yicong Huang 13 Sep '15

13 Sep '15

Hi, Our scenario is we had a main process, and it will create severl worker threads. Python code is running in worker threads. >From PyPy document, we should do the following: In main process: rpython_startup_code(); pypy_init_threads(); pypy_setup_home(...) And in worker thread that need to execute python code: pypy_thread_attach(); However, the problem is the code of the main process is in another module that we don't have source code access. So I am thinking could we do PyPy initialize and Finalize in thread itself? We could run python code in thread one by one. The process looks like: Main process create thread pool -> thread 1 initialized Pypy-> thread 1 run Python code -> thread 1 finish -> thread 1 finalize Pypy -> thread 2 initialized Pypy -> thread 2 run Python code -> thread 2 finish -> thread 2 finialize Pypy ... For now, if we do initialize again in thread 2, it will hang. And if we don't do initilize in thread 2, it will core dump by segmatation fault.

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use as benchmark pypy vs python if you please
by Dima Tisnek 13 Sep '15

13 Sep '15

Attached is n-queens solver (pardon my naive algorithm), it runs: python 2.7.6: 17s pypy 2.4.0 alpha: 23s same nojit: 32s I've tried similar-looking algorithm for another problem before, and has similar results -- somehow pypy was slower. feel free to investigate / tweak or even use on speed.pypy.org

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buildbot seems down
by Maciej Fijalkowski 10 Sep '15

10 Sep '15

any ideas?

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Re: [pypy-dev] [pypy-commit] pypy default: (fijal, arigo) merge optresult-unroll - this branch improves warmup by about
by Antonio Cuni 09 Sep '15

09 Sep '15

Hi, On Tue, Sep 8, 2015 at 3:11 PM, fijal <noreply(a)buildbot.pypy.org> wrote: > Author: Maciej Fijalkowski <fijall(a)gmail.com> > Branch: > Changeset: r79543:3c45f447b1e3 > Date: 2015-09-08 15:11 +0200 > http://bitbucket.org/pypy/pypy/changeset/3c45f447b1e3/ > > Log: (fijal, arigo) merge optresult-unroll - this branch improves warmup > by about 20% by changing the underlaying structure of the > ResOperations by killing Boxes. It also rewrites unrolling to > something (hopefully) a bit saner > > diff too long, truncating to 2000 out of 44326 lines > > diff --git a/pypy/goal/targetpypystandalone.py > b/pypy/goal/targetpypystandalone.py > --- a/pypy/goal/targetpypystandalone.py > +++ b/pypy/goal/targetpypystandalone.py > @@ -341,8 +341,8 @@ > > def jitpolicy(self, driver): > from pypy.module.pypyjit.policy import PyPyJitPolicy > - from pypy.module.pypyjit.hooks import pypy_hooks > - return PyPyJitPolicy(pypy_hooks) > + #from pypy.module.pypyjit.hooks import pypy_hooks > + return PyPyJitPolicy()#pypy_hooks) > > is still intended or just a typo? I suspect this disables pypyjit.set_compile_hook etc?

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Python CI and CD support available on Semaphore (feedback appreciated) (fwd)
by Laura Creighton 08 Sep '15

08 Sep '15

This showed up on python-list. Should we try to get them to make PyPy a supported Python? Laura ------- Forwarded Message Subject: Python CI and CD support available on Semaphore (feedback appreciated) From: =?UTF-8?Q?Filip_Komnenovi=C4=87?= <filip(a)renderedtext.com> HI folks, We have recently launched Python support on our continuous integration and deployment service and are looking for communities feedback. If you're up for it, please give a test drive to our service with your Python projects and give us your thoughts on what we could further improve upon. Official blog post announcing Python support: http://bit.ly/1KYrVsT Our website: https://semaphoreci.com/ Thanks in advance! BTW we offer free plans for open source projects and have limited free plans for private projects. - -- https://mail.python.org/mailman/listinfo/python-list ------- End of Forwarded Message

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Segmentation fault at rpyvmprof_f_pypy_rrr ()
by Yicong Huang 08 Sep '15

08 Sep '15

Hi, We observed the program was cored dump. And examing the core file, we found the call stack: #0 0x00007f26487e6b82 in rpyvmprof_f_pypy_rrr () from /usr/local/pypy/libpypy-c.so #1 0x00007f26494a797a in rpyvmprof_t_pypy_rrr () from /usr/local/pypy/libpypy-c.so #2 0x00007f26487a1ad4 in pypy_g_appexec___src__glob___________________import_sys () from /usr/local/pypy/libpypy-c.so #3 0x00007f26486f980b in pypy_g.pypy_execute_source () from /usr/local/pypy/libpypy-c.so #4 0x00007f26486f9994 in pypy_g_pypy_execute_source_ptr () from /usr/local/pypy/libpypy-c.so #5 0x00007f26484e6f42 in pypy_execute_source_ptr () from /usr/local/pypy/libpypy-c.so #6 0x00007f26484e6d82 in pypy_execute_source () from /usr/local/pypy/libpypy-c.so ... And debugging the core file, the char* buffer passed to pypy_execute_source() was: (gdb) print pyExBuffer $1 = "import sys\nsys.path.insert(0,'job_runtime/lib/python2.7/site-packages/udf')\000/1440989742122"... The code was to add a directory to sys.path(). The error was not reproduceable by extracting the piece of code from the whole programme, and I've no ideas why the segmentation fault happened. Does anyone knows what the function "rpyvmprof_f_pypy_rrr ()" did? And are there any methods to debug and found out the cause?

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W3C web accessibility (WCAG 2.0)
by Laura Creighton 04 Sep '15

04 Sep '15

Somebody mailed webmaster wanting to know how Python documentation faired w.r.t. the WCAG 2.0 Standard. https://www.w3.org/WAI/intro/wcag20 What he really wants to know is how hard is it for blind people to read the docs, and whether significant whitespace is a problem for blind python developers. I've referred him to some blind-users mailing lists so he can ask real blind people those questions, but have we ever tried to make the Python docs WCAG compliant? And if we tried, is there something we can direct interested people to? Thanks very much, Laura

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