Mailman 3 June 2012 - pypy-dev

PyPy 1.9 on LaunchPad PPA?
by Peter Cock June 22, 2012

June 22, 2012

Hello all, I'd like to be able to run tests for a Python project on Travis-CI under PyPy 1.9, however to provide PyPy on their virtual machines Travis-CI get PyPy from the PyPy PPA on LaunchPad: http://about.travis-ci.org/docs/user/languages/python/ https://launchpad.net/~pypy/+archive/ppa It appears that currently the latest release on the PPA is still PyPy 1.8 (and sadly for the project I have in mind, I require PyPy 1.9). Could someone update the PPA please? Thanks, Peter

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__format__ support for float64 type in NumPyPy
by Cameron Sparr June 21, 2012

June 21, 2012

Hi all, I noticed that there is no support for the .__format__() function with float64 data types in NumPyPy... I'm pretty new and was wondering if this is something that I should submit a bug report for? 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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Internship and bug report
by Leonard de HARO June 21, 2012

June 21, 2012

Hello, I'm a french undergraduated CS. student currently doing an internship in Santigo's University under the supervision of Eric Tanter. I'm working on the meta JIT compiler provided in the pypy project, trying to document it's performance on different kind of interpreters. I started two weeks ago. I have a problem with the translation toolchain. I've been writing an interpreter for a small language inspired by Shriram Krishnamurthi's F1WAE from his book "Programming Languages: Application … [View More]

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A very easy bug for newcomers
by Maciej Fijalkowski June 20, 2012

June 20, 2012

Hi This is a good start for someone wanting to explore contributing to pypy - https://bugs.pypy.org/issue1180 I'll fix it if noone steps up :) Cheers, fijal

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set with instances very slow from 1.8 to 1.9
by wilk June 20, 2012

June 20, 2012

Hi, I could isolate a piece of my code that show a big regression from 1.8 to 1.9, event from cpython to 1.9 with operations on set of instances. On the other side set of integer are faster ! Should i open an issue on the bug tracker ? $ python t.py with instances = 0.02350 with integers = 0.02825 $ pypy-1.8 t.py with instances = 0.00935 with integers = 0.02891 $ pypy-1.9 t.py with instances = 0.41753 with integers = 0.00628 pypy-last/bin/pypy t.py with instances = 0.34686 with … [View More]

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CFFI release 0.1
by Armin Rigo June 18, 2012

June 18, 2012

Hi all, Announcing the release 0.1 of CFFI, the new Python interface to call C libraries done (mostly) by Maciek and myself: http://morepypy.blogspot.ch/2012/06/release-01-of-cffi.html A bientôt, Armin.

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[cpyext] crash in PyThreadState_GetDict()
by Stefan Behnel June 18, 2012

June 18, 2012

Hi, I'm getting reproducible segfaults in the PyThreadState_GetDict() function with lxml. For that, it's enough to build the latest lxml github master version in PyPy and start the test runner. You'll also need the github master version of Cython for that (with contains the PyPy port). I use these commands for building lxml under Linux: $ CFLAGS=-ggdb make PYTHON=pypy inplace $ pypy test.py -vv -p parser html # no specific test, just not all The stack trace I get starts like this: """ #… [View More]

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new benchmark for pypy (without html version)
by Grzegorz Rudnicki June 18, 2012

June 18, 2012

Hi, I maked new benchmark: import random,string, time t=time.time() def random_string(dl=10): d = [random.choice(string.letters) for x in xrange(dl)] s = "".join(d) return s basic=[] words=[] n=20000 #number of basic words n2=5000 #number of words in text #Create list of words variants for i in range(n): basic_word=random_string() if basic_word in basic: basic_word=random_string() basic.append(basic_word) tmp=[] tmp.append(basic_word) for j … [View More]

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A proposal about Numpypy missing functions
by Daπid June 18, 2012

June 18, 2012

Hello, I have seen that there are some missing functions in numpypy that could be implemented, at least naïvely, very easily. An example of this is zeros_like, as we have zeros and shape. Another example is the random module, easy to port using list comprehension and the random module from the standard library. In any case, based on the benchmarks I have seen, I think the pypy version would be even faster than the pure CPython+Numpy. Would you be interested in a sub-optimal port of those … [View More]

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HTMLParser compatibility with cPython 2.7.3
by Robert Zaremba June 18, 2012

June 18, 2012

Hi, I would like to import changes from: The problem is that HTMLParser from 2.7.2 is not lenient and likes to throw exceptions, when html document is not well formed: http://bugs.python.org/issue13987 This often involves exception from BeautifoulSoup, which gains great speed up when using from pypy + HTMLParser from stdlib: "RuntimeWarning: Python's built-in HTMLParser cannot parse the given document. This is not a bug in Beautiful Soup. The best solution is to install an external … [View More]

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