Try this:
class Base(object):
pass
class C(Base):
pass
class NewBase(object):
pass
C.__bases__ = (NewBase,)
help(C)
--
http://mail.python.org/mailman/listinfo/python-list
On May 16, 6:30 am, "Gabriel Genellina"
wrote:
> En Fri, 15 May 2009 12:03:09 -0300, Rustom Mody
> escribió:
>
> > I am trying to talk to a server that runs on localhost
> > The server runs onhttp://localhost:7000/and that opens alright in a
> > web browser.
>
> > However if I use urlopen or u
Terry Reedy wrote:
> Steven D'Aprano wrote:
>> On Sat, 16 May 2009 09:55:39 -0700, Emanuele D'Arrigo wrote:
>>
>>> Hi everybody,
>>>
>>> let's assume I have a module with loads of classes inheriting from one
>>> class, from the same module, i.e.:
>> [...]
>>> Now, let's also assume that myFile.py
Daniel Fetchinson writes:
>> I need to get the creation date from a jpeg file in Python. Googling
>> brought up a several references to apparently defunct modules. The best
>> way I have been able to find so far is something like this:
>>
>> from PIL import Image
>> img = Image.open('img.jpg')
Gabriel Genellina wrote:
En Sat, 16 May 2009 04:04:03 -0300, Igor Katson
escribió:
Gabriel Genellina wrote:
En Fri, 15 May 2009 09:04:05 -0300, Igor Katson escribió:
Lawrence D'Oliveiro wrote:
In message ,
Igor Katson wrote:
Lawrence D'Oliveiro wrote:
In message ,
Igor Katson wrote:
I h
On 5/16/2009 5:26 PM, Aahz wrote:
> On Sat, May 16, 2009, Pete wrote:
>
>> python-concurre...@googlegroups.com is a new email list
>> for discussion of concurrency issues in python.
>
> Is there some reason you chose not to create a list on
> python.org? I'm not joining the list because Google
>
I second this. Google groups are annoying! Just request that it be added to
python.org
James
On Sun, May 17, 2009 at 12:22 PM, David M. Besonen wrote:
> On 5/16/2009 5:26 PM, Aahz wrote:
>
> > On Sat, May 16, 2009, Pete wrote:
> >
> >> python-concurre...@googlegroups.com is a new email list
> >
For me it's any book on Django, Core Python 2nd Edition (which I will buy if
updated) and Python Power.
On Fri, May 15, 2009 at 7:05 PM, Lou Pecora wrote:
> In article
> ,
> Mike Driscoll wrote:
>
> > On May 11, 4:45 pm, Chris Rebert wrote:
>
> > >
> > > I like "Python in a Nutshell" as a re
I don't see the issue of using urllib and Sqllite for everything you mention
here.
On Sat, May 16, 2009 at 4:18 PM, S.Selvam wrote:
> Hi all,
>
> I have to design web parser which will visit the given list of websites and
> need to fetch a particular set of details.
> It has to be so generic tha
hello,
just wonder how others solve this problem:
I've to distribute both python files and data files.
Everything is developed under windows and now the datafiles contains
paths with mixed \\ and /.
Under windows everthing is working well,
but under Ubuntu / Fedora sometimes strange errors occu
On Sun, May 17, 2009 at 3:11 AM, Stef Mientki wrote:
> hello,
>
> just wonder how others solve this problem:
> I've to distribute both python files and data files.
> Everything is developed under windows and now the datafiles contains paths
> with mixed \\ and /.
> Under windows everthing is worki
Hi,
I am working on a directory synchronisation tool for Linux.
$ gcc --version
gcc (GCC) 4.2.4 (Ubuntu 4.2.4-1ubuntu3)
$ python -V
Python 2.5.2
$ smbclient --version
Version 3.0.28a
I first designed it to work on the local filesystem. I am using filecmp.py
(distributed with Python) for comparing
Hi,
As I mentioned on the other thread about samba, I am working on a
synchronisation project and using filecmp.py for comparing files. I
modified it according to my needs and planning to distribute it with my
package. At first glance it seems that filecmp.py is a part of Python
package. Though I d
Wow, thank you all. Lots of ideas and things to try! I wish I knew
which one is going to work best. The module I'm trying to (monkey!)
patch is pxdom, and as it is a bit long (5700 lines of code in one
file!) I'm not quite sure if the simplest patching method will work or
the more complicated o
On Thu, May 14, 2009 at 3:34 PM, Mohan Parthasarathy wrote:
> Hi,
>
> I have read several articles and emails:
>
> http://www.cafepy.com/article/python_types_and_objects/python_types_and_objects.html#relationships-transitivity-figure
> http://mail.python.org/pipermail/python-list/2007-February/600
Hi everybody,
I'm looking at pxdom and in particular at its foundation class
DOMObject (source code at the end of the message). In it, the author
attempts to allow the establishment of readonly and read&write
attributes through the special methods __getattr__ and __setattr__. In
so doing is possib
Any attempt to do anything with Tkinter (save import) raises the
following show-stopping error:
"Traceback (most recent call last):
File "", line 1, in
File "/Library/Frameworks/Python.framework/Versions/2.6/lib/
python2.6/lib-tk/Tkinter.py", line 1645, in __init__
self._loadtk()
File "
On May 8, 12:07 am, MRAB wrote:
> def compound_filter(token_stream):
> stream = lowercase_token(token_stream)
> stream = remove_boring(stream)
> stream = remove_dupes(stream)
> for t in stream(t):
> yield t
The last loop is superfluous. You can just do::
def compoun
-- Forwarded message --
From: Tim Golden
Date: Sun, May 17, 2009 at 1:00 PM
Subject: Re: [python-win32] Fwd: Autosizing column widths in Excel using
win32com.client ?
To:
Cc: Python-Win32 List
James Matthews wrote:
> -- Forwarded message --
> From:
> Date: Fri,
>From a user point of view I think that adding a 'par' construct to
Python for parallel loops would add a lot of power and simplicity,
e.g.
par i in list:
updatePartition(i)
There would be no locking and it would be the programmer's
responsibility to ensure that the loop was truly parallel an
On 17 May, 13:05, jer...@martinfamily.freeserve.co.uk wrote:
> From a user point of view I think that adding a 'par' construct to
> Python for parallel loops would add a lot of power and simplicity,
> e.g.
>
> par i in list:
> updatePartition(i)
>
...actually, thinking about this further, I thi
> Edward Grefenstette (EG) wrote:
>EG> Any attempt to do anything with Tkinter (save import) raises the
>EG> following show-stopping error:
>EG> "Traceback (most recent call last):
>EG> File "", line 1, in
>EG> File "/Library/Frameworks/Python.framework/Versions/2.6/lib/
>EG> python2.6/
On May 15, 2:59 pm, Dustan wrote:
> In tkinter, when I place a photoimage on a button and disable the
> button, the image has background dots scattered through the image.
> Searching the web, I wasn't able to find any documentation on this
> behavior, nor how to turn it off. So here I am. How do I
On Sun, 17 May 2009 05:05:03 -0700, jeremy wrote:
> From a user point of view I think that adding a 'par' construct to
> Python for parallel loops would add a lot of power and simplicity, e.g.
>
> par i in list:
> updatePartition(i)
>
> There would be no locking and it would be the programme
Dustan wrote:
On May 15, 2:59 pm, Dustan wrote:
In tkinter, when I place a photoimage on a button and disable the
button, the image has background dots scattered through the image.
Searching the web, I wasn't able to find any documentation on this
behavior, nor how to turn it off. So here I am.
[Long mail. You may skip to the last paragraph to get the summary.]
On May 12, 12:35 pm, Steven D'Aprano wrote:
> To really be safe, that should become:
>
> try:
> rsrc = get(resource)
> except ResourceError:
> log('no more resources available')
> raise
> else:
> try:
> do
On 2009-05-17, Steven D'Aprano wrote:
> On Sun, 17 May 2009 05:05:03 -0700, jeremy wrote:
>
>> From a user point of view I think that adding a 'par' construct to
>> Python for parallel loops would add a lot of power and simplicity, e.g.
>>
>> par i in list:
>> updatePartition(i)
>>
>> There
Hallo pylist,
I searches web and python documentation for implementation of pushback
iterator but found none in stdlib.
problem:
when you parse a file, often you have to read a line from parsed file
before you can decide if you want that line it or not. if not, it would
be a nice feature
Jeremy Martin, nowadays a parallelfor can be useful, and in future
I'll try to introduce similar things in D too, but syntax isn't
enough. You need a way to run things in parallel. But Python has the
GIL.
To implement a good parallel for your language may also need more
immutable data structures (t
On Sun, 17 May 2009 16:39:38 +0200
Matus wrote:
> I searches web and python documentation for implementation of pushback
> iterator but found none in stdlib.
>
> problem:
>
> when you parse a file, often you have to read a line from parsed file
> before you can decide if you want that l
On Sun, May 17, 2009 at 8:42 AM, Piet van Oostrum wrote:
> > Edward Grefenstette (EG) wrote:
>
> >EG> Any attempt to do anything with Tkinter (save import) raises the
> >EG> following show-stopping error:
>
> >EG> "Traceback (most recent call last):
> >EG> File "", line 1, in
> >EG> Fil
On Sun, 17 May 2009 09:26:35 -0500, Grant Edwards wrote:
> On 2009-05-17, Steven D'Aprano
> wrote:
>> On Sun, 17 May 2009 05:05:03 -0700, jeremy wrote:
>>
>>> From a user point of view I think that adding a 'par' construct to
>>> Python for parallel loops would add a lot of power and simplicity,
Somehow, I got the message off the list.
On Sun, 17 May 2009 17:42:43 +0200
Matus wrote:
> > Sounds to me more like an iterator with a cache - you can't really pull
> > the line from a real iterable like generator function and then just push
> > it back.
>
> true, that is why you have to implem
Steven D'Aprano wrote:
On Sun, 17 May 2009 09:26:35 -0500, Grant Edwards wrote:
On 2009-05-17, Steven D'Aprano
wrote:
On Sun, 17 May 2009 05:05:03 -0700, jeremy wrote:
From a user point of view I think that adding a 'par' construct to
Python for parallel loops would add a lot of power and s
But reduce()? I can't see how you can parallelize reduce(). By its
nature, it has to run sequentially: it can't operate on the nth item
until it is operated on the (n-1)th item.
That depends on the operation in question. Addition for example would
work. My math-skills are a bit too rusty to qu
Quoting Mike Kazantsev :
> And if you're "pushing back" the data for later use you might just as
> well push it to dict with the right indexing, so the next "pop" won't
> have to roam thru all the values again but instantly get the right one
> from the cache, or just get on with that iterable unt
In article <0220260f$0$20645$c3e8...@news.astraweb.com>,
Steven D'Aprano wrote:
> But reduce()? I can't see how you can parallelize reduce(). By its
> nature, it has to run sequentially: it can't operate on the nth item
> until it is operated on the (n-1)th item.
Well, if you're willing to im
MRAB wrote:
Steven D'Aprano wrote:
On Sun, 17 May 2009 09:26:35 -0500, Grant Edwards wrote:
On 2009-05-17, Steven D'Aprano
wrote:
On Sun, 17 May 2009 05:05:03 -0700, jeremy wrote:
From a user point of view I think that adding a 'par' construct to
Python for parallel loops would add a lot o
On Sun, 17 May 2009 18:24:34 +0200, Diez B. Roggisch wrote:
>> But reduce()? I can't see how you can parallelize reduce(). By its
>> nature, it has to run sequentially: it can't operate on the nth item
>> until it is operated on the (n-1)th item.
>
> That depends on the operation in question. Add
On Sun, 17 May 2009 17:19:15 +0100, MRAB wrote:
>> But reduce()? I can't see how you can parallelize reduce(). By its
>> nature, it has to run sequentially: it can't operate on the nth item
>> until it is operated on the (n-1)th item.
>>
> It can calculate the items in parallel,
I don't underst
Steven D'Aprano wrote:
On Sun, 17 May 2009 17:19:15 +0100, MRAB wrote:
But reduce()? I can't see how you can parallelize reduce(). By its
nature, it has to run sequentially: it can't operate on the nth item
until it is operated on the (n-1)th item.
It can calculate the items in parallel,
I
My math-skills are a bit too rusty to qualify the exact nature of
the operation, commutativity springs to my mind.
And how is reduce() supposed to know whether or not some arbitrary
function is commutative?
I don't recall anybody saying it should know that - do you? The OP wants
to introdu
But reduce() can't tell whether the function being applied is commutative
or not. I suppose it could special-case a handful of special cases (e.g.
operator.add for int arguments -- but not floats!) or take a caller-
supplied argument that tells it whether the function is commutative or
not. But
hi,
i am using pygtk,glade in the front end and postgresql,python-twisted
(xmlrpc) as the back end.My issue is i am trying to add the progress bar in
my application but when the progress bar comes up it is blocking the backend
process.So i started using threading in my application.But when i added
A few years ago someone, somewhere on the Web, posted a blog in which
he observed that developers, by general temperament, seem to fall into
two groups.
On the one hand, there are developers who love big IDEs with lots of
features (code generation, error checking, etc.), and rely on them to
provid
Luis Alberto Zarrabeitia Gomez wrote:
> Quoting Mike Kazantsev :
>
>> And if you're "pushing back" the data for later use you might just as
>> well push it to dict with the right indexing, so the next "pop" won't
>> have to roam thru all the values again but instantly get the right one
>> from t
Peter Otten wrote:
Terry Reedy wrote:
If the names of superclasses is resolved when classes are instantiated,
the patching is easy. If, as I would suspect, the names are resolved
when the classes are created, before the module becomes available to the
importing code, then much more careful a
Thomas Wouters reminded me of a long-standing idea; I finally
found the time to write it down.
Please comment!
Regards,
Martin
PEP: 384
Title: Defining a Stable ABI
Version: $Revision: 72754 $
Last-Modified: $Date: 2009-05-17 21:14:52 +0200 (So, 17. Mai 2009) $
Author: Martin v. Löwis
Status: D
On 17 Mai, 14:05, jer...@martinfamily.freeserve.co.uk wrote:
> From a user point of view I think that adding a 'par' construct to
> Python for parallel loops would add a lot of power and simplicity,
> e.g.
>
> par i in list:
> updatePartition(i)
You can do this right now with a small amount of
On Sun, May 17, 2009 at 10:54 PM, "Martin v. Löwis" wrote:
> Excluded Functions
> --
>
> Functions declared in the following header files are not part
> of the ABI:
> - cellobject.h
> - classobject.h
> - code.h
> - frameobject.h
> - funcobject.h
> - genobject.h
> - pyarena.h
> - py
>> Functions declared in the following header files are not part
>> of the ABI:
>> - cellobject.h
>> - classobject.h
>> - code.h
>> - frameobject.h
>> - funcobject.h
>> - genobject.h
>> - pyarena.h
>> - pydebug.h
>> - symtable.h
>> - token.h
>> - traceback.h
>
> What kind of effect does this have
On Mon, May 18, 2009 at 12:07 AM, "Martin v. Löwis" wrote:
> I fail to see the relationship, so: no effect that I can see.
>
> Why do you think that optimization efforts could be related to
> the PEP 384 proposal?
It would seem to me that optimizations are likely to require data
structure changes
I would use a js plotting library, like http://code.google.com/p/flot/
On 8 mayo, 06:26, koranthala wrote:
> Hi,
> I am doing web development using Django. I need to create an image
> (chart) and show it to the users - based on some data which user
> selects.
> My question is - how do I cre
Dirkjan Ochtman wrote:
> On Mon, May 18, 2009 at 12:07 AM, "Martin v. Löwis"
> wrote:
>> I fail to see the relationship, so: no effect that I can see.
>>
>> Why do you think that optimization efforts could be related to
>> the PEP 384 proposal?
>
> It would seem to me that optimizations are like
I thought of this. I uninstalled Tk from macports, but the same error
crops up. Evidently, Tk 8.5 remains installed somewhere else, but I
don't know where. How can I find out?
Best,
Edward
>
>
> Have you installed Tk version 8.5?
>
> If so, remove it. You might also install the latest 8.4 version
Dino Viehland wrote:
> Dirkjan Ochtman wrote:
>> It would seem to me that optimizations are likely to require data
>> structure changes, for exactly the kind of core data structures that
>> you're talking about locking down. But that's just a high-level view,
>> I might be wrong.
>>
>
>
> In part
Dirkjan Ochtman wrote:
>
> It would seem to me that optimizations are likely to require data
> structure changes, for exactly the kind of core data structures that
> you're talking about locking down. But that's just a high-level view,
> I might be wrong.
>
In particular I would guess that ref co
can anybody comment on http://orbited.org/ ?
is it an active project? does it work?
Aljosa Mohorovic
--
http://mail.python.org/mailman/listinfo/python-list
Hi,
is there any simple way to do SSL certificate chain validation using
M2Crypto or any other library ?
Basically what I want to achieve is to be able to say if certificate
chain contained in 'XYZ.pem' file is issued by known CA (list of
common root-CA's certs should be loaded from separate dire
On Sun, 17 May 2009 20:34:00 +0200, Diez B. Roggisch wrote:
>>> My math-skills are a bit too rusty to qualify the exact nature of the
>>> operation, commutativity springs to my mind.
>>
>> And how is reduce() supposed to know whether or not some arbitrary
>> function is commutative?
>
> I don't
Martin v. Löwis wrote:
Dino Viehland wrote:
Dirkjan Ochtman wrote:
It would seem to me that optimizations are likely to require data
structure changes, for exactly the kind of core data structures that
you're talking about locking down. But that's just a high-level view,
I might be wron
Edward Grefenstette wrote:
I thought of this. I uninstalled Tk from macports, but the same error
crops up. Evidently, Tk 8.5 remains installed somewhere else, but I
don't know where. How can I find out?
Best,
Edward
Look in /Library/Frameworks...
Kevin Walzer
Code by Kevin
http://www.codebyk
On May 17, 2009, at 4:54 PM, Martin v. Löwis wrote:
Currently, each feature release introduces a new name for the
Python DLL on Windows, and may cause incompatibilities for extension
modules on Unix. This PEP proposes to define a stable set of API
functions which are guaranteed to be available f
On Sun, 17 May 2009 20:36:36 +0200, Diez B. Roggisch wrote:
>> But reduce() can't tell whether the function being applied is
>> commutative or not. I suppose it could special-case a handful of
>> special cases (e.g. operator.add for int arguments -- but not floats!)
>> or take a caller- supplied a
In article
,
Edward Grefenstette wrote:
> I thought of this. I uninstalled Tk from macports, but the same error
> crops up. Evidently, Tk 8.5 remains installed somewhere else, but I
> don't know where. How can I find out?
Look in /Library/Frameworks for Tcl.framework and Tk.framework. You can
Thanks to Kevin and Ned for the pointers.
The question is now this. Running find tells me I have tk.h in the
following locations:
===
/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/Tk.framework/
Versions/8.4/Headers/tk.h
/Developer/SDKs/MacOSX10.4u.sdk/usr/include/tk.h
/Developer/SDKs/Ma
Edward Grefenstette wrote:
Whereas Tk 8.5 is installed in:
===
/Library/Frameworks/Tk.framework/Versions/8.5/
===
Delete this one if you want to ensure that Python sees 8.4.
--
Kevin Walzer
Code by Kevin
http://www.codebykevin.com
--
http://mail.python.org/mailman/listinfo/python-list
I am pretty sure this shouldn't be as hard as I'm making it to be, but
how does one go about generating tones of specific frequency, volume, and
L/R pan? I've been digging around the internet for info, and found a few
examples. One was with gstreamer, but I can't find much in the
documentation
In article
,
Edward Grefenstette wrote:
> Bingo! Updating to Python 6.2.2 did the trick (I had 6.2). I just had
> to relink the /usr/bin/python to the Current directory in /Library/
> Frameworks/Python.framework/Versions/ and everything worked without
> deletions etc. Thanks for your help, every
Bingo! Updating to Python 6.2.2 did the trick (I had 6.2). I just had
to relink the /usr/bin/python to the Current directory in /Library/
Frameworks/Python.framework/Versions/ and everything worked without
deletions etc. Thanks for your help, everyone!
Best,
Edward
--
http://mail.python.org/mailm
Hi,
I am writing Python script to process e-mails in a user's mail
account. What I want to do is to update that e-mail's Status to 'R'
after processing it, however, the following script truncates old e-
mails even though it updates that e-mail's Status correctly. Anybody
knows how to fix this?
Th
On May 18, 9:14 am, Aljosa Mohorovic
wrote:
> can anybody comment onhttp://orbited.org/?
> is it an active project? does it work?
I have no idea about your second question but looking at PyPI,the
module was last updated on the 9th of this much, so I'd say it's very
much an active project:
http:/
try http://www.pygame.org, as far as I remember there is a way to
generate sound arrays though not sure aboout the pan
m
Adam Gaskins wrote:
> I am pretty sure this shouldn't be as hard as I'm making it to be, but
> how does one go about generating tones of specific frequency, volume, and
> L/R
I am using Python 2.4. I need to make a native Python extension for
Windows XP. I have both VC++ 6.0 and Visual C++ 2005 Express Edition.
Will VC++ 6.0 do the trick? That would be easier for me, because the
project is written for that one. If not, will the 2005 compiler do it?
Thanks much,
>>> It also might make it easier for alternate implementations to support
>>> the same API so some modules could work cross implementation - but I
>>> suspect that's a non-goal of this PEP :).
>>>
>>
>> Indeed :-) I'm also skeptical that this would actually allow
>> cross-implementation module
On Mon, 18 May 2009, Adam Gaskins wrote:
> I am pretty sure this shouldn't be as hard as I'm making it to be, but
> how does one go about generating tones of specific frequency, volume, and
> L/R pan? I've been digging around the internet for info, and found a few
> examples. One was with gstreamer
On 2009-05-18, Adam Gaskins wrote:
> I am pretty sure this shouldn't be as hard as I'm making it to be, but
> how does one go about generating tones of specific frequency, volume, and
> L/R pan? I've been digging around the internet for info, and found a few
This can be done with SDL which wou
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