On Jun 2, 1:44 am, harrismh777 wrote:
..
> Just another example (excluding print 1/2 and unicode) where 3.x
> seems to be completely compatible with 2.x/ (tongue-in-cheek)
One of the key purposes of the 3.x line of code is to get rid of warts
in the language. As a result, if someone is
Kamaelia 0.3.0 has been released!
Introduction
Kamaelia is a networking/communications infrastructure for innovative
multimedia systems. Kamaelia uses a component architecture designed to
simplify creation and testing of new protocols and large scale media
delivery systems. A subset
On Sun, 2 Jan 2005, Ian Bicking wrote:
> Steven Bethard wrote:
> > PEP 288 was mentioned in one of the lambda threads and so I ended up
> > reading it for the first time recently. I definitely don't like the
> > idea of a magical __self__ variable that isn't declared anywhere. It
> > also seemed
Rolf Magnus wrote:
> I would like to embed a python interpreter within a program, but since
> that program would be able to automatically download scripts from the
> internet, I'd like to run those in a restricted environment, which
> basically means that I want to allow only a specific set of mod
Pierre Quentel wrote:
> http://khason.biz/blog/2004/12/why-microsoft-can-blow-off-with-c.html
I almost didn't look at this, but I'm glad I did - quite a fun comparison,
nicely arbitrary and reminds me of RFC in a similar vein :)
Michael.
--
http://mail.python.org/mailman/listinfo/python-list
Roose wrote:
...
> I was thinking that there would be a Lisp interpreter in a kernel,
> which afaik doesn't exist.
There's an implementation of scheme that runs as a kernel module in
Linux - it's designed to allow people to experiment with exploring
kernel data structures at run time, and other f
On Tue, 11 Jan 2005, Baza wrote:
> I'm looking for any books or on-line resources on game programming using
> Python. Does anyone have any advice?
There's a book called "Games programming with Python" that's quite a good
read. Any online bookstore should be able to give you more details. A
cursor
On 30 Jan 2005 [EMAIL PROTECTED] wrote:
> Sparring
> with Alex Martelli is like boxing Mike Tyson, except that one
> experiences brain enhancement rather than brain damage :).
+1 QOTW
:-)
Michael.
--
http://mail.python.org/mailman/listinfo/python-list
Dennis Clark wrote:
...
> Has anyone, or is anyone working with Python in an embedded Linux
> environment? Mine is NO where near as constrained as a cell phone since
> I've got plenty of memory to work with, I'm just running a Linux 2.4
> kernel on an ARM9 platform.
This really shouldn't be a p
Jeremy Jones wrote:
> I think the only reason I read your posts is for comedy,
Indeed.
> Xah Lee wrote:
> ... [ lots of stuff, that if Xah cared about Xah would attempt to write
> better docs, rather than criticise) ...
...
>>Btw, behavior such as this one, common in imperative languages and i
Back from Europython 2005 - I'd just like to thank all the organisers of
Europython this year - it was probably the best conference I've been to -
for developers, by developers.
Also, for anyone who wasn't able to attend (come next year!), I've taken the
majority of the notes I made in the talks I
Mike Meyer wrote:
> Peter Hansen <[EMAIL PROTECTED]> writes:
>> Mike Meyer wrote:
>>> Yes. I once grabbed an old program that did assignments to None. But
>>> that's always been a bad idea.
>> What was the use case!?
>
> Unpacking a tuple. Something like this:
>
> (foo, bar, None) = gen
Chris Stiles wrote:
> I was wondering if anyone had a list of the various (presuming more than
> one)
> Python tasking frameworks? I know of Twisted already, but I'm really
> looking
> for something along the lines of a task/thread pool type of arrangement.
The Kamaelia framework might or might
Hi,
Apologies first to those outside the UK... Open Tech 2005* is a follow
on from previous years' NotCon events which are community driven
low cost events by geeks & developers for geeks & developers. (Much
like Pycon & Europython but much more general in nature)
Website: http://www.ukuug.org/e
y in python aswell ;-)
It's getting there - the recent PEP regarding the ability to cause a
generator to have an exception thrown inside it provides very similar to
Unix signals as provided via "kill", which will be nice when 2.5 is
released.
Hopefully you find the system useful,
praba kar wrote:
>I want to know difference between
> Python-cgi and Perl-cgi and also I want
> to which one is efficient from the performance.
Possibly the most important difference between the two is when you're using
JUST cgi - ie no mod_perl, no mod_python, etc. With python, if your cg
Dark Cowherd wrote:
> The Python language is at ver 2.4 and a thing of beauty. As a
> development environment IMHO it is probably 0.4
Have you considered looking at any of the commercial IDEs? Personally I
*like* command line based systems, but I do know many people who swear
by GUI based IDEs. I
Kamaelia 0.2.0 has been released!
What is it?
===
Kamaelia is a collection of Axon components designed for network
protocol experimentation in a single threaded, select based environment.
Axon components are python generators are augmented by inbox and outbox
queues (lists) for communicati
Phil Hunt wrote:
> Kamaelia seems it might be an interesting project. However, I don't
> think the project is well served by this announcement -- which I
> find vague and hard to understand. Which is a shame, because it
> means that other people probably don't understand it very well
> either, wh
I've reordered the q's slightly to avoid repetition... Also by answering
this question first, it may put the rest of the answer into context
better.
phil hunt wrote:
> At what stage of completion is it?
This is something we deliberately try to reflect in the version number.
Yes, you can build n
phil hunt wrote:
> On Wed, 03 Aug 2005 16:57:34 +0100, Michael Sparks <[EMAIL PROTECTED]>
wrote:
>>> Is the audience programmers or
>>> less technical people? A project that allows non-technical people
>>> to build complex network applications is an ambiti
phil hunt wrote:
> On Wed, 03 Aug 2005 16:57:34 +0100, Michael Sparks <[EMAIL PROTECTED]>
> wrote:
...
>>Which aside from other things means you can't build (say) a video
>>& SMIL playback system trivially, yet.
>
> Isn't SMIL something that'
Tim Golden wrote:
> I just wanted to say that I find the ideas behind Kamaelia
> interesting, and I only wish I had an application for it!
> Because I'm not especially into media-streaming, I'm more
> interested in it from the point of view of the generator-based
> architecture.
It's nice to know
Peter Tillotson wrote:
> I've not yet had a chance to try some examples, but i've looked through
> the documentation. It feels quite familiar,
It hopefully should. The approach is based essentially on an asynchronous
hardware approach, on the recognition that the fundamental reason that
hangs to
Terry Reedy wrote:
> "Michael Sparks" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
>> def updater(interval, message):
>> t = time.time():
>> while 1:
>> if time.time() - t > interval:
>> print message
>
Paul Rubin wrote:
> Mike Meyer <[EMAIL PROTECTED]> writes:
>> Even simpler to program in is the model used by Erlang. It's more CSP
>> than threading, though, as it doesn't have shared memory as part of
>> the model. But if you can use the simpler model to solve your problem
>> - you probably shoul
Roland Hedberg wrote:
> What the protocol has to accomplish is extremely simple; the client
> sends a number of lines (actually a RDF) and the server accepts or
> rejects the packet. That's all !
...
> Now, presently I'm using ( why so is a long
> history which I will not go into here) and that is
Chris Spencer wrote:
> My code's ... at http://deadbeefbabe.org/paste/1525/0
...
> I've written a simple class to manage P2P socket connections. However,
> whenever I try to receive data, the socket raises an exception with the
> error message (11, 'Resource temporarily unavailable').
At one poin
Carl Friedrich Bolz wrote:
[[... great news ...]]
Would it be useful for people to start trying out their modules/code to see
if they work with this release, and whether they can likewise be translated
using the C/LLVM backends, or would you say this is too early? (I'm more
thinking in terms of it
Valentino Volonghi aka Dialtone wrote:
> Michael Sparks <[EMAIL PROTECTED]> wrote:
>
>> Would it be useful for people to start trying out their modules/code to
>> see if they work with this release, and whether they can likewise be
>> translated using the C/LLVM b
billiejoex wrote:
> Hi all. I'd need to aproximate a given float number into the next (int)
> bigger one. Because of my bad english I try to explain it with some
> example:
>
> 5.7 --> 6
> 52.987 --> 53
> 3.34 --> 4
> 2.1 --> 3
What about 2.0? By your spec that should be rounded to 3 - is that w
Michael Hudson wrote:
...
> The chance of any random module you have written being rpython is more
> or less zero, so it's not _that_ interesting for you to try to compile
> them with PyPy.
I know - the code I use contains LOTS of generators for example, which
obviously don't fit the requirements
Bryan Olson wrote:
> A plausible theory. I have some possibly-illustrative examples
> of what I ran into within the last few weeks.
Did you take what you learnt, and use that to create better
documentation to be posted on python's SF project as a patch?
(Not aimed at you, just a preface, and
Hi Paul,
Paul Rubin wrote:
> Michael Sparks <[EMAIL PROTECTED]> writes:
[[[ some random stuff, /intended/ at supporting people who have contributed
docs, rather than saying people who offer constructive suggestions are
bad. Possibly badly written. ]]]
> I've submitted a numb
A.M. Kuchling wrote:
> On 1 Sep 2005 05:04:33 -0700,
> Paul Boddie <[EMAIL PROTECTED]> wrote:
>> Please note that I'm not labelling you as a troll.
>
> No, he's simply barking mad. I was amused by a rec.arts.sf.written
> discussion [1] where Lee complains that Jonathan Swift (1667-1745)'s
> writ
Paul Rubin wrote:
> Michael Sparks <[EMAIL PROTECTED]> writes:
>> > I've submitted a number of doc bugs to sourceforge and the ones
>> > that are simple errors and omissions do get fixed.
>>
>> Cool.
>
> Better than nothing, but it's onl
Steve Jorgensen wrote:
> On 05 Sep 2005 10:29:48 GMT, Nick Craig-Wood <[EMAIL PROTECTED]> wrote:
>
>>Jeremy Jones <[EMAIL PROTECTED]> wrote:
>>> One Python process will only saturate one CPU (at a time) because
>>> of the GIL (global interpreter lock).
>>
>>I'm hoping python won't always be lik
Jeremy Jones wrote:
> Michael Sparks wrote:
>>Steve Jorgensen wrote:
>>>On 05 Sep 2005 10:29:48 GMT, Nick Craig-Wood <[EMAIL PROTECTED]> wrote:
>>>
>>>
>>>
>>>>Jeremy Jones <[EMAIL PROTECTED]> wrote:
>>>>>
Dieter Vanderelst wrote:
> Dear all,
>
> I'm currently comparing Python versus Perl to use in a project that
> involved a lot of text processing. I'm trying to determine what the
> most efficient language would be for our purposes. I have to admit
> that, although I'm very familiar with Python, I
Jorgen Grahn wrote:
> On Tue, 06 Sep 2005 08:57:14 +0100, Michael Sparks <[EMAIL PROTECTED]>
> wrote: ...
>> Are you so sure? I suspect this is due to you being used to writing code
>> that is designed for a single CPU system. What if you're basic model of
>>
Thomas Bellman wrote:
> Michael Sparks <[EMAIL PROTECTED]> writes:
>> Similarly, from
>> a unix command line perspective, the following will automatically take
>> advantage of all the CPU's I have available:
>>(find |while read i; do md5sum $i; done|cu
Guenter wrote:
> I need to develop an application that displays video 640x480 16-bit per
> pixel with 30 fps it is possible to achieve that frame rate and still
> have some resources for other processing left?
Yes.
Co-incidentally we've been looking at video playback this week as well.
We
Xah Lee wrote:
> isn't there a way to implement tail in python with the same class of
> performance?
>
> how's tail implemented?:
Those crazy open source developers have an implementation here:
http://cvs.sourceforge.net/viewcvs.py/mkcdrec/mkcdrec/busybox-0.60.5/Attic/tail.c?rev=1.1&view=markup
I
Guenter wrote:
> Michael Sparks schrieb:
>> Yes.
>>
>> Co-incidentally we've been looking at video playback this week as
>> well. We've been using Pygame with an Overlay surface, and it works
>> fairly well.
>
> I guess Pygame was more suitable ove
Mark Dufour wrote:
> With this initial release, I hope to attract other people to help me
> locate remaining problems,
Well, you did say you want help with locating problems. One problem with
this is it doesn't build...
If I try and build (following your instructions), I get presented with a
w
Terry Reedy wrote:
[...]
> I am being picky because various people have claimed that Python suffers
> in popularity because it is known as an 'interpreted language'. So maybe
> advocates should be more careful than we have been to not reinforce the
> misunderstanding.
I sometimes wonder if it mig
Paul Boddie wrote:
> Michael Sparks wrote:
>> Well, you did say you want help with locating problems. One problem with
>> this is it doesn't build...
>
> I found that I needed both the libgc and libgc-dev packages for my
> Kubuntu distribution - installing them
Hi,
We're in the process of creating python bindings for Dirac. We currently
have /decode/ of dirac functioning nicely, so I've packaged up the bindings
separately from the rest of the Kamaelia project for those that are
interested and would want a play. (Encoding will naturally follow next)
To
Paul Rubin wrote:
...
> I don't see how generators substitute for microthreads. In your example
> from another post:
I've done some digging and found what you mean by microthreads -
specifically I suspect you're referring to the microthreads package for
stackless? (I tend to view an activated gen
arrgh... hit wrong keystroke which caused an early send before I'd finished
typing... (skip the message I'm replying to hear for a minute please :-)
Michael.
--
http://mail.python.org/mailman/listinfo/python-list
[ Second time lucky... ]
Paul Rubin wrote:
...
> I don't see how generators substitute for microthreads. In your example
> from another post:
I've done some digging and found what you mean by microthreads -
specifically I suspect you're referring to the microthreads package for
stackless? (I tend
Stephen Thorne wrote:
> On 15/09/05, Michael Sparks <[EMAIL PROTECTED]> wrote:
>> At the moment, one option that springs to mind is this:
>> yield WaitDataAvailable("inbox")
>
> Twisted supports this.
>
> help("twisted.internet.defer.waitForD
Michele Simionato wrote:
> It looks like I am reinventing Twisted and/or Kamaelia.
If it's /fun/ , is that a problem ? ;) (Interesting implementation BTW :)
FWIW, I've about a year ago it wasn't clear if we would be able to release
our stuff, so as part of a presentation I included a minimalisti
Paddy wrote:
> A work colleague circulated this interesting article about reducing
> software bugs by orders of magnitude:
The problem that these sorts of approaches don't address is the simple
fact that simple creating a formal spec and implementing it, even if
you manage to create a way of auto
Steven D'Aprano wrote:
> On Thu, 15 Sep 2005 18:07:28 +0100, phil hunt wrote:
>> On Thu, 15 Sep 2005 21:56:06 +1000, Steven D'Aprano
>> <[EMAIL PROTECTED]> wrote:
>>>
>>>Are you saying that the recursion done by "serious" languages is a fake?
>>>That it is actually implemented behind the scenes by
Robert Kern wrote:
> Thomas Jollans wrote:
>> what exactly is RPG/roguelike etc ? (what debian package provides an
>> example?)
>
> Google is your friend.
Often a fair answer, but I'd suggest that the question was fair, especially
given the OP was seeking help :-)
After all, I read the subject
Giles Brown wrote:
> Michael Sparks wrote:
>> The problem that these sorts of approaches don't address is the simple
>> fact that simple creating a formal spec and implementing it, even if
>> you manage to create a way of automating the test suite from the spec
>>
Hi,
I suspect this is a bug with AMK's Crypto package from
http://www.amk.ca/python/code/crypto , but want to
check to see if I'm being dumb before posting a bug
report.
I'm looking at using this library and to familiarise myself writing
small tests with each of the ciphers. When I hit Crypto.Ci
Jp Calderone wrote:
> On Tue, 20 Sep 2005 16:08:19 +0100, Michael Sparks <[EMAIL PROTECTED]>
> wrote:
>>Hi,
>>
>>
>>I suspect this is a bug with AMK's Crypto package from
>>http://www.amk.ca/python/code/crypto , but want to
>>check to see if I
Mark Dufour wrote:
> Shed Skin is an experimental Python-to-C++ compiler. Along with
> GNU/Linux, version 0.0.2 should now also install easily under Windows
> 2000/XP and OSX. Please give it a try and let me know if there are
> still some problems.
ss.py writes a make file, but unfortunately doesn
Michael J. Fromberger wrote:
...
> Since ARC4 is a stream cipher, the keystream changes over time -- with
> ARC4, after each character enciphered. To decrypt successfully, you
> need to make sure the decrypting keystream exactly matches the
> encrypting one.
...
from Crypto.Cipher import ARC4
Paul Rubin wrote:
> Michael Sparks <[EMAIL PROTECTED]> writes:
>> I'm looking at using this library and to familiarise myself writing
>> small tests with each of the ciphers. When I hit Crypto.Cipher.ARC4
>> I've found that I can't get it to decode w
Martijn Iseger wrote:
...
> I believe the point being made by the organization is that during
> computing history the most successful shifts in productivity were
> achieved by similar shifts in raising the abstraction level on which
> developers specify solutions.
The alternate point is that durin
Paul Rubin wrote:
> Michael Sparks <[EMAIL PROTECTED]> writes:
>> Rather than re-inventing wheels I thought I'd pick a library sit down
>> and see how pycrypt's meant to be used before actually going anyway.
>> (Amongst other reasons, this is why I sus
On Thu, 10 Feb 2005, xiaobin yang wrote:
> Hi, if i am already skillful with c++. Is it useful to learn python? thanks!
Personally I would say yes, largely because I tend to find them
complementary languages. It's easier (IMO) to explore random ideas in
python without getting nailed into corner
On 11 Feb 2005, Xah Lee wrote:
> # this construct uses a irregular syntax to generate a expression
> # built by nested loops. Semantically, this expression generation is
> # akin to applying a function to a tree. Morons in the computing
> # industry and academia like to call this "list comprehens
On Fri, 11 Feb 2005, Dominic Fox wrote:
...
> http://www.codepoetics.com/code/concurrent.py
>
> Comments and constructive criticism welcome.
For an alternative approach (based on using generators forming a dataflow
component system) you might find our project interesting - the core
concurrency stu
On 11 Feb 2005 [EMAIL PROTECTED] wrote:
> Hi,
>
> I am new to Python and coming from the EDA/VLSI Design background.
>
> I wanted to know if there are some active projects going on EDA modules
> written in Python.
You may want to take a look at MyHDL & APVM/Oroboro:
* http://jandecaluwe.com/To
e GNU General Public License 2.0 or the Lesser General
Public License 2.1. Proprietary terms and conditions available upon
request.
Best Regards,
Michael.
--
Michael Sparks, Senior R&D Engineer, Digital Media Group
[EMAIL PROTECTED]
British Broadcasting Corporation, Research and Developme
On Sun, 28 Nov 2004, [ISO-8859-1] BJörn Lindqvist wrote:
> In the faq,
> http://www.python.org/doc/faq/general.html#why-are-colons-required-for-the-if-while-def-class-statements,
> it is stated that the colon is there "primarily to enhance readability
> (one of the results of the experimental ABC
On Fri, 3 Dec 2004, Phil Thompson wrote:
...
> The key is access to the Qt API. If your applications gives the users access
> to the API then those users are developers and need their own licenses. On
> the other hand if the API is sufficiently removed from the Qt API then you
> shouldn't have a pr
On Sun, 12 Dec 2004, Dimitri Tcaciuc wrote:
> Hey everybody,
>
> While I'm not absolutely positive, it looks like Python still doesn't
> have any official mascot or logo.
Hmm... I thought it did - indeed it's in every character set (?):
@
For those who can't see the detail, it's an eel curled
On Mon, 20 Dec 2004, Fredrik Lundh wrote:
> Simo Melenius wrote:
>
> >> Ahem. If you name the function, you can reuse the name (or just
> >> forget about it) as soon as you've used the function object.
> >
> > Sure, but mental pollution counts too IMO. What you write and what you
> > read must go t
Hi,
I've already posted an announcement in comp.lang.python.announce
about this, but for those who were at Europython and remember me
giving a lightning talk on Kamaelia who don't read c.l.p.a - this
is just a quick note to say that we've been given the go ahead to
release it as open source and t
Rocco Moretti wrote:
...
> Is there a group of people for whom static typing truly helps?
Yes. Python doesn't at present compile down to a binary executable. (Py2exe
don't really count since that's "just" tacking on a VM on the side (he says
dimissively regarding something he thinks is cool :) )
Hi,
Axon is the core set of modules in Kamaelia[1], and is essentially a set
of tools for managing concurrency inside a single thread. Whilst it is a
pre-requisite for Kamaelia, it can be used independently as well.
Rather than the usual statemachine (or state machine derived) approach it
uses
Kamaelia 0.1.2 has been released!
What is it?
===
Kamaelia is a collection of Axon components designed for network
protocol experimentation in a single threaded, select based environment.
Axon components are python generators are augmented by inbox and outbox
queues (lists) for communicat
Hi,
I've hit a corner case that I can explain to myself *why* it happens, both
under python 2.3 and python 2.4, but the following inconsistency makes me
wonder if I should log it as a bug:
First the behaviour that isn't unexpected:
>>> a=["hello"]
>>> a = a + "world"
Traceback (most recent call
[EMAIL PROTECTED] wrote:
> when you use a = a + 'world' python sees it as an error because of
> different type.
>
> But when you use a += 'world'
> python will change the right into list (because a is a list). So when
> you're code become:
> a += 'world' # a += list('world')
>
> It really helpf
Hi,
I hadn't seen any announcements regarding this, but there's a little
device recently released called a GP2X which is a small dual CPU
(2x200Mhz) device which runs Linux.
Anyway, I thought there might be someone in here interested to hear
that python AND pygame have both been ported to it alr
On Wednesday 28 Dec 2005 17:58:33, Robert Kern wrote:
>
...
Sorry to reply to the thread so late in the day, but I noticed (via
QOTW :-( ) that Anton got worked up at me suggesting that congratulating
someone with a new job was a nice idea (surprised me too - all the
Google employees I've met have
.html
It's worth bearing in mind though that your description above is one
approach
for component based design. A survey of different approaches which you
might find useful:
> Thanks for all the link regarding kamaelia.
Probably went a bit overboard there :)
However I do agree that a visual system is something important, since
not everyone thinks the same way. (I can talk about our system till the
cows come home, show people code, but when I show them the visual
builder, everyone seems to understand).
Regards,
Michael.
--
Michael Sparks, Kamaelia Dust Puppy
http://kamaelia.sf.net/
http://yeoldeclue.com/blog
--
http://mail.python.org/mailman/listinfo/python-list
e kamaelia mailing list:
[EMAIL PROTECTED]
If you know someone who you think is interested in the theme, could
benefit from coming - for example someone interested in making practical
concurrency safer and easier to use in future - please don't hesitate
to forward this invitation to them.
H
Paul Rubin wrote:
> "Ramon Diaz-Uriarte" <[EMAIL PROTECTED]> writes:
> > You might also want to check
> > http://www.lindaspaces.com/products/NWS_overview.html
> > by the guys who "invented" Linda.
>
> Cool, I guess.
>
> > (The Oz language/Mozart system is a good example of a different and
> > very
Kay Schluehr wrote:
> The new Python site is incredibly boring. Sorry to say this. The old
> site is/was amateurish but engaged. Now after ~15 years of existence
> Pythons looks like it wants to be popular among directors of a german
> job centers. It aims to do everything right but what could be
Paul Rubin wrote:
> Jp Calderone <[EMAIL PROTECTED]> writes:
>> Distributing load across multiple machines scales better than
>> distributing it over multiple CPUs in a single machine. If you have
>> serious scalability requirements, SMP is a minor step in the wrong
>> direction (unless you're
holger krekel wrote:
> The PyPy 0.6 release
>
>
> *The PyPy Development Team is happy to announce the first
> public release of PyPy after two years of spare-time and
> half a year of EU funded development. The 0.6 release
> is eminently a preview release.*
Yay! Congratulat
Stelios Xanthakis wrote:
...
>- It's incompatible with CPython. Not all programs run.
...
> - The demo is an x86/linux binary only. You shouldn't trust binaries,
>run it in a chrooted environment not as root!
>
> Hope it works!
Whatever the merits of a system like this, a closed system with b
Axon 1.1.0 has been released!
What is it?
===
Axon is a collection of pure python modules from the Kamaelia project
which allow you to build concurrent systems in a compositional manner
using communicating python generators. Components are python generators
are augmented by inbox and outbo
Hi,
I'm posting a link to this since I hope it's of interest to people here :)
I've written up the talk I gave at ACCU Python UK on the Kamaelia Framework,
and it's been published as a BBC R&D White Paper and is available here:
* http://www.bbc.co.uk/rd/pubs/whp/whp113.shtml
Essentially it
[EMAIL PROTECTED] wrote:
>
>> I've written up the talk I gave at ACCU Python UK on the Kamaelia
>> Framework, and it's been published as a BBC R&D White Paper and is
>> available here:
>>
>>* http://www.bbc.co.uk/rd/pubs/whp/whp113.shtml
> I enjoyed the paper.
I'm pleased to hear that and I
Giacomo Lacava wrote:
> New meeting of the Python North-West UK community!
>
> This month's talk is:
> - Michael Sparks on "Greylisting with Kamaelia" -
Just a small note that the slides from this are now up here:
http://www.slideshare.net/kamaelian/kamaelia-grey
Hi,
Just thought some people may be interested to hear that I've recently been
looking at adding true concurrency into Kamaelia, by using Paul Boddie's
pprocess as the core mechanism to allow us to run multiple Kamaelia systems
in the same app. (Since we have thread based, and co-operative genera
a pretty complete minimalistic thing, which does seem
to work OK, but I'm interested in the three points I mention above - if
anyone is willing to comment - specifcally:
* Does the API look simple enough?
* Are there any glaring mistakes in the code ? (It's always harder to se
d
S.dump()
print "Committed", D.value["myaccount"]
Fails as follows:
accounts : Value(1, {'account_two': 100, 'myaccount': 0, 'account_one': 50})
accounts : Value(2, {'account_two': 100, 'myaccount': -100, 'account_one':
100})
Traceback (most recent call last):
File "./NewSTM.py", line 70, in
D.commit() # Third
File "./NewSTM.py", line 20, in commit
self.store.set(self.key, self)
File "./NewSTM.py", line 37, in set
raise ConcurrentUpdate
__main__.ConcurrentUpdate
(which is of course the error wanted - since we want to be able to detect
failure)
It's probably useful to know for the more general approach you suggest.
Thanks!
Michael.
--
Michael Sparks, Kamaelia Project Lead
http://kamaelia.sourceforge.net/Developers/
http://yeoldeclue.com/blog
--
http://mail.python.org/mailman/listinfo/python-list
Duncan Booth wrote:
> Michael Sparks <[EMAIL PROTECTED]> wrote:
>
>> I'm interested in writing a simple, minimalistic, non persistent (at
>> this stage) software transactional memory (STM) module. The idea being
>> it should be possible to write suc
Fuzzyman wrote:
>> STM seems more in
>> keeping with Kamaelia being generally lock-free.
>
> STM isn't lock free - it just abstracts the locks away from the
> 'user'. You still need to lock around committing the transaction.
>
I perhaps phrased what I meant too tersely.
Kamaelia isn't lock fre
John J. Lee wrote:
> Durus might be worth a look too (though I doubt it's suitable for your
> situation):
>
> http://www.mems-exchange.org/software/durus/
>
> The link to their paper about it seems to be broken, but I think it
> was based somewhat on ZODB, but is simpler (67k tarball :-).
Much
logical errors is particularly
welcome. (hopefully there aren't any - but it's always hard to spot your
own)
Thanks
==
Many thanks to Fuzzyman, Duncan Booth, John J Lee & Sylvain Hellegouarch for
feedback whilst I was prototyping this.
Best Regards,
Michael.
--
Michael Sparks, Kamaelia Project
http://kamaelia.sourceforge.net/Developers/
http://yeoldeclue.com/blog
--
http://mail.python.org/mailman/listinfo/python-list
[EMAIL PROTECTED] wrote:
> Basically, I agree that often the local state is much more useful. It
> just seems to me that for some application it's an overkill. Like say,
> for Turtle [1] (no jokes, please :) or PostScript [2].
Sounds also a bit similar to what happens under the hood in Open GL an
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