I've got slight problem with os.tmpfile(). What I would like to do is to get
the filedesc of tmpfile.
First approach:
os.tmpfile().fileno() of course does not work out, because fileno() does not
keep object alive. The solution is to keep os.tmpfile() result somewhere for
an arbitrary amount of
IMHO this shouldn't segfault:
import thread
while 1:
f = open(/tmp/dupa, w)
thread.start_new_thread(f.close, ())
f.close()
while it does on cpython 2.5.1, linux box.
May I consider this a bug?
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Honestly, the argument that this code is already gone in 3.0 is not very
valid. 2.x version would be probably used for many years.
Cheers,
fijal
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That would be break so much code that I doubt that, in practice, you can
slip it through within a release. Besides, being able to write simpler
code like for L in open(foo.txt) is per-se a good reason *not to*
put file objects in cycles; so you will probably need more than one good
reason to
While working on the core is admirable, I think gsoc would provide an
opportunity to port important Python libraries to 3.x. It's important
to remember that doing ports helps the core immensely by uncovering
2to3 and py3k bugs.
Hello.
It's a very noble task to have important python
So. The issue was closed and I suppose it was closed by not entirely
understanding
the problem (or I didn't get it completely).
The question is - what the following code should do?
def f():
a = 2
class C:
exec 'a = 42'
abc = a
return C
print f().abc
(quick answer - on python2.5
attributes. I actually think the
2.5 behavior is correct, and I don't know why it changed in 2.6.
--Guido
On Tue, Mar 31, 2009 at 8:15 PM, Maciej Fijalkowski fij...@gmail.com wrote:
So. The issue was closed and I suppose it was closed by not entirely
understanding
the problem (or I didn't get
Shame on me indeed.
On Wed, Apr 1, 2009 at 5:38 AM, Guido van Rossum gu...@python.org wrote:
OK that might change matters. Shame on you though for posting a patch
without any explanation of the issue.
On Tue, Mar 31, 2009 at 8:36 PM, Maciej Fijalkowski fij...@gmail.com wrote:
Because classes
On Wed, Apr 15, 2009 at 1:10 PM, Georg Brandl ge...@python.org wrote:
Hi,
I managed to screw up the date, so here it goes again:
I'd like to announce that there will be a Python Bug Day on April 25.
As always, this is a perfect opportunity to get involved in Python
development, or bring
On Sun, Jun 21, 2009 at 5:05 PM, Daniel Dinizaja...@gmail.com wrote:
Hi David,
omega_force2...@yahoo.com wrote:
It appears that one possibility of investigation into the development of a
safety-critical variant of the python language
There is some interesting work related to a
==
PyPy 1.7 - widening the sweet spot
==
We're pleased to announce the 1.7 release of PyPy. As became a habit, this
release brings a lot of bugfixes and performance improvements over the 1.6
release. However, unlike the previous
On Tue, Nov 22, 2011 at 3:15 PM, Stefan Behnel stefan...@behnel.de wrote:
Giampaolo Rodolà, 22.11.2011 10:21:
2011/11/21 Terry Reedy:
I strongly recommend that where it makes a difference, the pypy python3
project target 3.3. In particular, don't reproduce the buggy narrow-build
behavior of
On Wed, Nov 23, 2011 at 11:13 PM, Philip Jenvey pjen...@underboss.org wrote:
On Nov 22, 2011, at 12:43 PM, Amaury Forgeot d'Arc wrote:
2011/11/22 Philip Jenvey pjen...@underboss.org
One reason to target 3.2 for now is it's not a moving target. There's
overhead involved in managing
On Sat, Nov 26, 2011 at 6:39 AM, Nick Coghlan ncogh...@gmail.com wrote:
On Sat, Nov 26, 2011 at 8:14 AM, Michael Foord
fuzzy...@voidspace.org.uk wrote:
On 24 Nov 2011, at 04:06, Nick Coghlan wrote:
On Thu, Nov 24, 2011 at 10:28 AM, Guido van Rossum gu...@python.org wrote:
Mea culpa for not
On Fri, Dec 16, 2011 at 11:32 PM, Terry Reedy tjre...@udel.edu wrote:
On 12/16/2011 5:03 AM, Mark Shannon wrote:
Of course using __slots__ saves more memory,
but people don't use them much.
Do you think the stdlib should be using __slots__ more?
Note that unlike some other more advanced
On Sat, Dec 17, 2011 at 2:31 PM, Dirkjan Ochtman dirk...@ochtman.nl wrote:
On Sat, Dec 17, 2011 at 12:53, Maciej Fijalkowski fij...@gmail.com wrote:
Note that unlike some other more advanced approaches, slots do change
semantics. There are many cases out there where people would stuff
On Tue, Dec 20, 2011 at 10:51 AM, Antoine Pitrou solip...@pitrou.net wrote:
On Mon, 19 Dec 2011 22:42:43 +0100
benjamin.peterson python-check...@python.org wrote:
http://hg.python.org/cpython/rev/d85efd73b0e1
changeset: 74088:d85efd73b0e1
branch: 3.2
parent: 74082:71e5a083f9b1
On Tue, Dec 20, 2011 at 12:14 PM, Dirkjan Ochtman dirk...@ochtman.nl wrote:
On Tue, Dec 20, 2011 at 11:08, Antoine Pitrou solip...@pitrou.net wrote:
If this documentation is to be used by other python implementations,
then mentions of performance are outright harmful, since the
performance
On Thu, Dec 22, 2011 at 11:56 AM, Antoine Pitrou solip...@pitrou.net wrote:
On Thu, 22 Dec 2011 09:44:32 +
Tim Wintle timwin...@gmail.com wrote:
2.5 apps are the speed-critical ones. Our tests showed the performance
was different enough between 2.5 and 2.6 for me to not update.
Really?
- I wonder whether the shared keys could be computed at compile
time, considering all attribute names that get assigned for
self. The compiler could list those in the code object, and
class creation could iterate over all methods (taking base
classes into account).
This is hard, because
On Wed, Jan 4, 2012 at 12:02 AM, Bill Janssen jans...@parc.com wrote:
Christian Heimes li...@cheimes.de wrote:
Am 29.12.2011 12:13, schrieb Mark Shannon:
The attack relies on being able to predict the hash value for a given
string. Randomising the string hash function is quite
On Thu, Jan 5, 2012 at 3:39 PM, Antoine Pitrou solip...@pitrou.net wrote:
On Thu, 5 Jan 2012 15:26:27 +1100
Andrew Bennetts and...@bemusement.org wrote:
I don't think that's news either.
http://mail.python.org/pipermail/python-dev/2003-May/035907.html and
Hi
Something that's maybe worth mentioning is that the official python
benchmark suite http://hg.python.org/benchmarks/ has a pretty
incomplete set of benchmarks for python 3 compared to say what we run
for pypy: https://bitbucket.org/pypy/benchmarks I think a very
worthwhile project would be to
PyPy 1.8 - business as usual
We're pleased to announce the 1.8 release of PyPy. As habitual this
release brings a lot of bugfixes, together with performance and memory
improvements over the 1.7 release. The main highlight of the release
is
On Tue, Feb 21, 2012 at 2:00 PM, Sümer Cip sum...@gmail.com wrote:
Hi all,
Is there a reason behind the fact that the Python profilers work with Wall
time by default? There are OS-dependent ways to get the CPU time of a
thread, and giving that choice to the user _somehow_ ( to use wall vs cpu
On Wed, Feb 22, 2012 at 9:59 AM, mar...@v.loewis.de wrote:
What is the hash of ePjNTUhitHkL?
Regards,
Martin
P.S. It took me roughly 86h to compute 150 strings colliding for the 64-bit
hash function.
You should have used pypy, should have been faster.
On Wed, Feb 22, 2012 at 11:55 AM, Martin v. Löwis mar...@v.loewis.de wrote:
Am 22.02.2012 19:46, schrieb Maciej Fijalkowski:
On Wed, Feb 22, 2012 at 9:59 AM, mar...@v.loewis.de wrote:
What is the hash of ePjNTUhitHkL?
Regards,
Martin
P.S. It took me roughly 86h to compute 150 strings
On Sat, Mar 3, 2012 at 1:37 PM, Victor Stinner victor.stin...@gmail.com wrote:
Hi,
Le 03/03/2012 20:13, Armin Rigo a écrit :
I challenge anymore to break pysandbox! I would be happy if anyone
breaks it because it would make it more stronger.
I tried to run the files from Lib/test/crashers
On Sat, Mar 3, 2012 at 6:51 PM, Guido van Rossum gu...@python.org wrote:
On Sat, Mar 3, 2012 at 6:02 PM, Maciej Fijalkowski fij...@gmail.com wrote:
On Sat, Mar 3, 2012 at 1:37 PM, Victor Stinner victor.stin...@gmail.com
wrote:
Hi,
Le 03/03/2012 20:13, Armin Rigo a écrit :
I challenge
On Sun, Mar 4, 2012 at 12:35 PM, Martin v. Löwis mar...@v.loewis.de wrote:
So, how to handle stack overflows (of the C stack)?
To prevent a stack overflow an exception must be raised before
the VM runs out C stack. To do this we need 2 pieces of info:
a) How much stack we've used
b) How much
On Mon, Mar 5, 2012 at 1:21 PM, Greg Ewing greg.ew...@canterbury.ac.nz wrote:
Armin Rigo wrote:
For example, let's assume we can decref
a object to 0 before its last usage, at address x. All you need is
the skills and luck to arrange that the memory at x becomes occupied
by a new bigger
On Mon, Mar 5, 2012 at 3:40 PM, Martin v. Löwis mar...@v.loewis.de wrote:
I strongly disagree that sandbox is secure because it's just
segfaults and any code is exploitable that way. Finding segfaults
in CPython is easy. As in all you need is armin, a bit of coffee and
a free day. Reasons for
On Wed, Mar 7, 2012 at 5:42 PM, Benjamin Peterson benja...@python.org wrote:
2012/3/7 Victor Stinner victor.stin...@gmail.com:
So my question is: what is the use case of such dict? Why do we still
support it?
Probably a side-effect of implementation.
Can't we simply raise an error if the
On Wed, Mar 7, 2012 at 2:36 PM, Vinay Sajip vinay_sa...@yahoo.co.uk wrote:
Armin Ronacher armin.ronacher at active-4.com writes:
What are you trying to argue? That the overall Django testsuite does
not do a lot of string processing, less processing with native strings?
I'm surprised you see
On Sun, Mar 25, 2012 at 9:25 PM, Georg Brandl g.bra...@gmx.net wrote:
On 25.03.2012 21:11, Steven D'Aprano wrote:
Georg Brandl wrote:
Thanks everyone for the overwhelmingly positive feedback. I've committed
the
new design to 3.2 and 3.3 for now, and it will be live for the 3.3 docs
On Sat, Mar 31, 2012 at 7:45 PM, R. David Murray rdmur...@bitdance.comwrote:
On Sun, 01 Apr 2012 03:03:13 +1000, Nick Coghlan ncogh...@gmail.com
wrote:
On Sun, Apr 1, 2012 at 2:09 AM, Guido van Rossum gu...@python.org
wrote:
Here's a different puzzle. Has anyone written a demo yet that
On Tue, Apr 17, 2012 at 8:30 PM, Antoine Pitrou solip...@pitrou.net wrote:
On Tue, 17 Apr 2012 17:22:57 +
Kristján Valur Jónsson krist...@ccpgames.com wrote:
We are all consenting adults. Everything is allowed - you just have to
live with
the consequences.
Well, we
** **
*From:* python-dev-bounces+kristjan=ccpgames@python.org [mailto:
python-dev-bounces+kristjan=ccpgames@python.org] *On Behalf Of *Maciej
Fijalkowski
*Sent:* 17. apríl 2012 21:29
*To:* Antoine Pitrou
*Cc:* python-dev@python.org
*Subject:* Re: [Python-Dev] issue 9141, finalizers
On Thu, May 31, 2012 at 6:56 PM, Benjamin Peterson benja...@python.orgwrote:
2012/5/31 Nick Coghlan ncogh...@gmail.com:
On Thu, May 31, 2012 at 8:26 PM, Mark Shannon m...@hotpy.org wrote:
Eric Snow wrote:
The implementation for sys.implementation is going to use a new (but
private)
Hi
I was reading a bit about the regex module and I would like to present some
other solution into speeding up the re module for Python.
So, as a bit of background - pypy has a re compatible module. It's also
JITted and it's also exportable as a C library (that is a library you can
call from C
On Sun, Jun 3, 2012 at 3:06 PM, Calvin Spealman ironfro...@gmail.comwrote:
On Sun, Jun 3, 2012 at 7:49 AM, Maciej Fijalkowski fij...@gmail.com
wrote:
Hi
I was reading a bit about the regex module and I would like to present
some
other solution into speeding up the re module for Python
On Sun, Jun 3, 2012 at 3:46 PM, Nick Coghlan ncogh...@gmail.com wrote:
The embedded (in both senses of the term) use cases for CPython pretty
much kill the idea, I'm afraid.
As I said it can (and should) definitely be optional.
Those cases are also one of the biggest question marks over
On Sun, Jun 3, 2012 at 5:21 PM, Martin v. Löwis mar...@v.loewis.dewrote:
On the minus side, the JIT only works on x86 and x86_64, on the plus
side, since it's 100% API compatible, it can be used as a _xxx
speedup module relatively easy.
Do people have opinions?
The main concern for re is
PyPy 1.9 - Yard Wolf
We're pleased to announce the 1.9 release of PyPy. This release brings
mostly
bugfixes, performance improvements, other small improvements and overall
progress on the `numpypy`_ effort.
It also brings an improved situation on Windows
On Mon, Jun 11, 2012 at 8:58 AM, Nick Coghlan ncogh...@gmail.com wrote:
On Mon, Jun 11, 2012 at 11:29 AM, Guido van Rossum gu...@python.org
wrote:
But what guarantee do you have that (a) the right people sign up for
the new list, and (b) topics are correctly brought up there instead of
on
On Wed, Jun 13, 2012 at 9:13 PM, R. David Murray rdmur...@bitdance.comwrote:
On Wed, 13 Jun 2012 20:46:50 +0200, Antoine Pitrou solip...@pitrou.net
wrote:
On Wed, 13 Jun 2012 11:20:24 -0700
Toshio Kuratomi a.bad...@gmail.com wrote:
On Wed, Jun 13, 2012 at 01:58:10PM -0400, R. David
On Mon, Jun 18, 2012 at 7:02 PM, Terry Reedy tjre...@udel.edu wrote:
On 6/18/2012 9:14 AM, Armin Rigo wrote:
Hi all,
We (=fijal and myself) finally released the beta-0.1 version of CFFI.
http://cffi.readthedocs.org/
It is a(nother) simple Foreign Function Interface for Python calling C
On Mon, Jun 18, 2012 at 5:04 PM, Antoine Pitrou solip...@pitrou.net wrote:
On Mon, 18 Jun 2012 15:28:24 +0100
Mark Shannon m...@hotpy.org wrote:
But do they? The results of benchmarking would seem to suggest (at least
on my test machine) that overly-sparse dicts are slower.
Possibly due
On Thu, Jun 5, 2008 at 6:23 PM, Benjamin Peterson
[EMAIL PROTECTED] wrote:
Hi,
This summer, I am going to be revamping Python's test suite. Major
things I plan to do include
- rewriting regrtest.py to be a simple test driver
- implementing CPython only decorators
- moving skipping data to
What do you think about this code:
class A:
locals()[42] = 98
Seems people rely on it working. Do we consider it part of python
language? (Note that you cannot do the same with getattr/setattr which
checks if argument is a string)
Cheers,
fijal
___
On Wed, Jun 11, 2008 at 3:36 AM, Scott Dial
[EMAIL PROTECTED] wrote:
Maciej Fijalkowski wrote:
What do you think about this code:
class A:
locals()[42] = 98
Seems people rely on it working.
I apologize for my ignorance, but who? Could you please cite something
reputable that relies
On Thu, Jun 12, 2008 at 2:32 AM, Terry Reedy [EMAIL PROTECTED] wrote:
Scott Dial [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
|| If non-string keys are not allowed in __dict__, then the AddOns library
| should be changed to add another dict to the object of interest to track
|
On Thu, Jun 19, 2008 at 1:03 AM, Raymond Hettinger [EMAIL PROTECTED] wrote:
Maciej Fijalkowski did an opcode analysis for PyPy,
it also shows the relative frequency of opcodes following a
specifc one:
http://codespeak.net/svn/user/fijal/opcodes.txt
Might it make sense to add more PREDICT
You can provide selfless class as a class with special metaclass that
overloads __new__ and changes signature of each method. Not sure how
good is this, but requires no changes to the language and will work as
you want.
Cheers,
fijal
On Wed, Aug 27, 2008 at 8:46 AM, Kilian Klimek
[EMAIL
PyPy offers sandboxing interpreter without compromising language
features itself. Here are docs:
http://codespeak.net/pypy/dist/pypy/doc/sandbox.html
Also, are you aware of directory Lib/test/crashers (in python's svn)
which contains some possible ways to segfault cpython? (which can lead
to
Hello,
I'm a little clueless about exact semantics of following snippets:
http://paste.pocoo.org/show/85698/
is this fine?
or shall I fill the bug?
(the reason to ask is because a) django is relying on this b) pypy
implements it differently)
cheers,
fijal
On Fri, Sep 19, 2008 at 9:30 PM, Jean-Paul Calderone [EMAIL PROTECTED] wrote:
On Fri, 19 Sep 2008 18:26:05 +0200, Amaury Forgeot d'Arc
[EMAIL PROTECTED] wrote:
Hello Maciej,
Maciej Fijalkowski wrote:
Hello,
I'm a little clueless about exact semantics of following snippets:
http
...
We know it is the plan for PyPy to work in this way, and also that
Jython and Ironpython works like that (using the host vm's GC), so it
seems to be somehow agreeable with the python semantics (perhaps not
really with __del__ but they are not really nice anyway).
PyPy has a
When I try to run this, I get:
Fatal Python error: Py_Initialize: can't initialize sys standard streams
Traceback (most recent call last):
File /home/fijal/lang/python/Python30/Lib/encodings/__init__.py,
line 31, in module
File /home/fijal/lang/python/Python30/Lib/codecs.py, line 1060, in
Hello,
The thing is pypy's taint code is broken. Basically you don't only
need to patch all places that return pyobject, but also all places
that might modify anything. (All side effects) For example innocently
looking call to addition might end up calling arbitrary python code
(and have
If we could calculate how much stack is left we'd have a much more
robust way of doing recursion limits. I suppose this could be done by
reading a byte from each page with a temporary SIGSEGV handler
installed, but I'm not convinced you can't ask the platform directly
somehow. I'd also be
to the JIT code, as well as a great
speedup of compiling time.
Cheers,
Maciej Fijalkowski, Armin Rigo, Alex Gaynor, Amaury Forgeot d'Arc and
the PyPy team
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.
On Fri, Jun 25, 2010 at 11:27 PM, Maciej Fijalkowski fij...@gmail.com
wrote:
===
PyPy 1.3: Stabilization
===
Hello.
We're please to announce release of PyPy 1.3. This release has two major
improvements. First of all, we stabilized the JIT compiler since
On Fri, Jul 2, 2010 at 12:31 AM, Stefan Behnel stefan...@behnel.de wrote:
Glyph Lefkowitz, 02.07.2010 06:43:
On Jul 2, 2010, at 12:28 AM, Steven D'Aprano wrote:
This question was inspired by something asked on #python today. Consider
it a hypothetical, not a serious proposal.
We know that
On Fri, Jul 2, 2010 at 1:20 AM, Martin v. Löwis mar...@v.loewis.de wrote:
Am 02.07.2010 08:55, schrieb Craig Citro:
This question has an easy answer - can you possibly tell the difference?
Ok, I'm obviously being silly here, but sure you can:
The dis module is deliberately (*) not part of
On Fri, Jul 2, 2010 at 10:35 PM, Steven D'Aprano st...@pearwood.info wrote:
On Sat, 3 Jul 2010 11:39:07 am Greg Ewing wrote:
Stefan Behnel wrote:
So, would it still be Python if it folded
1 + 1
into
raise TypeError()
at compile time?
It would have to be
raise
On Sun, Jul 18, 2010 at 10:32 PM, Paul Moore p.f.mo...@gmail.com wrote:
On 18 July 2010 20:57, Glyph Lefkowitz gl...@twistedmatrix.com wrote:
On Jul 18, 2010, at 1:46 PM, Alexander Belopolsky wrote:
We already have posponed and remind resolutions, but these are
exclusive of accepted. I
On Wed, Jul 21, 2010 at 6:50 PM, Reid Kleckner reid.kleck...@gmail.com wrote:
On Wed, Jul 21, 2010 at 8:11 AM, Tim Golden m...@timgolden.me.uk wrote:
Brett suggested that
the Unladen Swallow merge to trunk was waiting for some work to complete
on the JIT compiler and Georg, as release manager
On Thu, Jul 22, 2010 at 9:51 AM, Brett Cannon br...@python.org wrote:
On Wed, Jul 21, 2010 at 16:58, Antoine Pitrou solip...@pitrou.net wrote:
On Wed, 21 Jul 2010 11:42:00 -0400
Jesse Noller jnol...@gmail.com wrote:
On Wed, Jul 21, 2010 at 11:11 AM, Tim Golden m...@timgolden.me.uk
wrote:
On Mon, Jul 26, 2010 at 12:02 PM, Michael Foord
fuzzy...@voidspace.org.uk wrote:
On 26/07/2010 04:42, Guido van Rossum wrote:
On Sun, Jul 25, 2010 at 8:31 PM, Peter Portante
peter.a.porta...@gmail.com wrote:
FWIW: We use Python at Tabblo, straddled across Python 2.5.4 and 2.6.5.
They
On Thu, Jul 29, 2010 at 6:53 AM, Greg Ewing greg.ew...@canterbury.ac.nz wrote:
On 28/07/10 23:12, Antoine Pitrou wrote:
It should be noted, though, that a full GC can be detrimental to
real-time applications. Kristján has already explained how some of his
software disabled the cyclic GC, and
Cheers,
Carl Friedrich Bolz, Antonio Cuni, Maciej Fijalkowski,
Amaury Forgeot d'Arc, Armin Rigo and the PyPy team
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On Sat, Dec 4, 2010 at 6:34 AM, James Y Knight f...@fuhm.net wrote:
On Dec 3, 2010, at 10:50 PM, Terry Reedy wrote:
On 12/3/2010 7:46 PM, James Y Knight wrote:
Sure they are. This is what Java provides you, for example. If you
have fixed, but potentially non-unique ids (in Java you get this
On Sat, Dec 4, 2010 at 1:37 PM, Antoine Pitrou solip...@pitrou.net wrote:
On Sat, 4 Dec 2010 15:06:45 +1100
Cameron Simpson c...@zip.com.au wrote:
On 03Dec2010 18:15, James Y Knight f...@fuhm.net wrote:
| On Dec 3, 2010, at 6:04 PM, Terry Reedy wrote:
| gc is implementation specific. CPython
OK, but is it mandatory? For example, in the above code, I can unroll the
loop because I found that range is the usual built-in, 5 is a low-enough
constant,
How do you know xrange is xrange and not something else?
Cheers,
fijal
___
Python-Dev
On Fri, Dec 31, 2010 at 12:00 PM, Maciej Fijalkowski fij...@gmail.com wrote:
OK, but is it mandatory? For example, in the above code, I can unroll the
loop because I found that range is the usual built-in, 5 is a low-enough
constant,
How do you know xrange is xrange and not something else
How about not changing semantics and still making this optimization possible?
PyPy already has CALL_LIKELY_BUILTIN which checks whether builtins has
been altered (by keeping a flag on the module dictionary) and if not,
loads a specific builtin on top of value stack. From my current
experience, I
On Tue, Jan 25, 2011 at 1:26 PM, Antoine Pitrou solip...@pitrou.net wrote:
On Tue, 25 Jan 2011 01:00:28 +0100 (CET)
benjamin.peterson python-check...@python.org wrote:
Author: benjamin.peterson
Date: Tue Jan 25 01:00:28 2011
New Revision: 88178
Log:
another pretty crasher served up by pypy
On Fri, Mar 4, 2011 at 10:35 AM, Martin v. Löwis mar...@v.loewis.de wrote:
Google Summer of Code is coming up again, and we will again
be participating. Arc Riley will setup infrastructure later
today, and we need to start thinking about possible projects.
Traditionally, people (students and
On Sat, Mar 12, 2011 at 1:14 PM, Martin v. Löwis mar...@v.loewis.de wrote:
http://www.boredomandlaziness.org/2011/03/python-vm-summit-rough-notes.html
http://www.boredomandlaziness.org/2011/03/python-vm-summit-somewhat-coherent.html
Wrt. the remark that other implementations should be
[skipping the whole long discussion]
Cython is meant to compile Python code. A cython version would just be a
pure Python module, usable with all other implementations, but with type
annotations that make it compile to more optimal C code. Type annotations
can be provided in an external file
On Mon, Mar 21, 2011 at 12:33 PM, DasIch dasdas...@googlemail.com wrote:
Hello Guys,
I'm interested in participating in the Google Summer of Code this year
and I've been looking at projects in the Wiki, particularly
speed.pypy.org[1] as I'm very interested in the current VM
development.
On Mon, Mar 21, 2011 at 2:24 PM, DasIch dasdas...@googlemail.com wrote:
On Mon, Mar 21, 2011 at 7:48 PM, Antoine Pitrou solip...@pitrou.net wrote:
On Mon, 21 Mar 2011 19:33:55 +0100
DasIch dasdas...@googlemail.com wrote:
3. Several benchmarks (at least the Django and Twisted ones) have
No worries, it wasn't even my code. Someone
donated it. The was a discusion on python-dev
and collective agreement to allow it to have
semantic differences that would let it run faster.
IIRC, the final call was made by Uncle Timmy.
The bug link is here:
http://bugs.python.org/issue3051
AFAIK the AST is
CPython-specific so should be treated with the same attitude as
changes to the bytecode. That means, do it conservatively, since there
*are* people who like to write tools that manipulate or analyze this,
and while they know they're doing something CPython and
On Fri, Apr 8, 2011 at 3:29 AM, Jesse Noller jnol...@gmail.com wrote:
On Thu, Apr 7, 2011 at 7:52 PM, Michael Foord fuzzy...@voidspace.org.uk
wrote:
On 08/04/2011 00:36, Anthony Scopatz wrote:
On Thu, Apr 7, 2011 at 6:11 PM, Michael Foord fuzzy...@voidspace.org.uk
wrote:
On 07/04/2011
On Fri, Apr 8, 2011 at 11:22 AM, Stefan Behnel stefan...@behnel.de wrote:
Jesse Noller, 07.04.2011 22:28:
On Thu, Apr 7, 2011 at 3:54 PM, Anthony Scopatz wrote:
Hi Daniel,
Thanks for putting this together. I am a huge supporter of benchmarking
efforts. My brief comment is below.
On Wed,
On Fri, Apr 8, 2011 at 12:18 PM, Stefan Behnel stefan...@behnel.de wrote:
Maciej Fijalkowski, 08.04.2011 11:41:
On Fri, Apr 8, 2011 at 11:22 AM, Stefan Behnelstefan...@behnel.de
wrote:
Jesse Noller, 07.04.2011 22:28:
On Thu, Apr 7, 2011 at 3:54 PM, Anthony Scopatz wrote:
Hi Daniel
On Fri, Apr 8, 2011 at 11:22 AM, Stefan Behnel stefan...@behnel.de wrote:
Jesse Noller, 07.04.2011 22:28:
On Thu, Apr 7, 2011 at 3:54 PM, Anthony Scopatz wrote:
Hi Daniel,
Thanks for putting this together. I am a huge supporter of benchmarking
efforts. My brief comment is below.
On Wed,
On Mon, Apr 11, 2011 at 12:43 PM, Stefan Behnel stefan...@behnel.de wrote:
Maciej Fijalkowski, 11.04.2011 11:39:
On Fri, Apr 8, 2011 at 11:22 AM, Stefan Behnelstefan...@behnel.de
wrote:
Jesse Noller, 07.04.2011 22:28:
On Thu, Apr 7, 2011 at 3:54 PM, Anthony Scopatz wrote:
Hi Daniel
On Sun, Apr 17, 2011 at 4:19 AM, Raymond Hettinger
raymond.hettin...@gmail.com wrote:
On Apr 16, 2011, at 2:45 PM, Brett Cannon wrote:
On Sat, Apr 16, 2011 at 14:23, Stefan Krah ste...@bytereef.org wrote:
Brett Cannon br...@python.org wrote:
In the grand python-dev tradition of silence
On Tue, Apr 19, 2011 at 10:57 AM, Nick Coghlan ncogh...@gmail.com wrote:
On Tue, Apr 19, 2011 at 3:06 PM, Stefan Behnel stefan...@behnel.de wrote:
I think this social problem of the PEP can only be solved if the CPython
project stops doing the major share of the stdlib maintenance, thus freeing
On Tue, Apr 19, 2011 at 12:01 PM, Stefan Behnel stefan...@behnel.de wrote:
Nick Coghlan, 19.04.2011 10:57:
On Tue, Apr 19, 2011 at 3:06 PM, Stefan Behnel wrote:
I think this social problem of the PEP can only be solved if the CPython
project stops doing the major share of the stdlib
Once this move is made/accepted, I would expect the other
implementation to rapidly move away from their custom implementations
of the stdlib and contribute to the shared code base and
documentation. Yes, this places a burden on CPython, but in the long
term in benefits *all* of the projects
On Thu, Apr 28, 2011 at 11:10 PM, Stefan Behnel stefan...@behnel.de wrote:
M.-A. Lemburg, 28.04.2011 22:23:
Stefan Behnel wrote:
DasIch, 28.04.2011 20:55:
the CPython
benchmarks have an extensive set of microbenchmarks in the pybench
package
Try not to care too much about pybench. There
On Fri, Apr 29, 2011 at 9:55 AM, Holger Krekel holger.kre...@gmail.com wrote:
On Fri, Apr 29, 2011 at 12:31 AM, Raymond Hettinger
raymond.hettin...@gmail.com wrote:
On Apr 28, 2011, at 3:07 PM, Guido van Rossum wrote:
On Thu, Apr 28, 2011 at 2:53 PM, Raymond Hettinger
On Sun, May 22, 2011 at 1:57 AM, Artur Siekielski
artur.siekiel...@gmail.com wrote:
Hi.
The problem with reference counters is that they are very often
incremented/decremented, even for read-only algorithms (like traversal
of a list). It has two drawbacks:
1. CPU cache lines (64 bytes on X86)
Hi.
Unfortunately I'm missing Europython (and language summit) this year.
Did anyone do a writeup on what was discussed?
Cheers,
fijal
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On Wed, Jun 22, 2011 at 3:24 PM, Nick Coghlan ncogh...@gmail.com wrote:
On Wed, Jun 22, 2011 at 10:47 PM, anatoly techtonik techto...@gmail.com
wrote:
I wonder if upcoming speed.python.org has any means to validate these
claims for different Python releases?
Is there any place where I can
On Thu, Jul 7, 2011 at 7:59 PM, Oleg Broytman p...@phdru.name wrote:
Hello.
We are sorry but we cannot help you. This mailing list is to work on
developing Python (adding new features to Python itself and fixing bugs);
Well, it seems this post is about adding a new feature isn't it?
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