On Fri, May 20, 2011 at 4:26 PM, harrismh777 wrote:
> Actually, it should be relatively easy to incorporate parts of bc into
> Python as C extensions. On the other hand, when needing specialized math
> work from bc, its probably just better to use bc and leave Python alone.
If someone has time to
On Thu, May 19, 2011 at 10:43 PM, Ethan Furman wrote:
> Several folk have said that objects that compare equal must hash equal, and
> the docs also state this
> http://docs.python.org/dev/reference/datamodel.html#object.__hash__
>
> I'm hoping somebody can tell me what horrible thing will happen i
Ethan Furman wrote:
> Several folk have said that objects that compare equal must hash equal,
> and the docs also state this
> http://docs.python.org/dev/reference/datamodel.html#object.__hash__
>
> I'm hoping somebody can tell me what horrible thing will happen if this
> isn't the case? Here's
I have directory structure as gnukhata/tests/functional. In functional
folder I have web tests files. Following is the sample tests:
*from gnukhata.tests import *
class TestVendorController(TestController):
def test_index(self):
response = self.app.get(url(controller='vendor', action='index'
Chris Angelico wrote:
I believe the 'bc' command-line calculator can do a-p non-i, and I
know REXX can
Yes, bc is wonderful in this regard. Actually, bc does this sort of
thing in 'circles' around Python. This is one of Python's weaknesses for
some problem solving... no arbitrary precision.
geremy condra wrote:
Anonymous, "Maximum Linux Security: A Hacker's Guide to Protecting
> Your Linux Server and Workstation," Indianapolis:
> Sams Publishing, 2000.
This is a good volume, but very dated. I'd probably pass on it.
Actually, although dated, its still a very go
On Fri, May 20, 2011 at 3:58 PM, Steven D'Aprano
wrote:
> ... until you deleted most of it :)
Minimalist quoting practice! :)
> If you want an *accurate* fib() function using exponentiation of φ, you
> need arbitrary precision non-integers.
I believe the 'bc' command-line calculator can do a-p
On Fri, 20 May 2011 09:37:59 +1000, Chris Angelico wrote:
> On Fri, May 20, 2011 at 8:47 AM, Steven D'Aprano
> wrote:
>> On Tue, 17 May 2011 10:02:21 -0700, geremy condra wrote:
>>
>>> or O(1):
>>>
>>> φ = (1 + sqrt(5)) / 2
>>> numerator = (φ**n) - (1 - φ)**n
>>
>> I'd just like to point out
Several folk have said that objects that compare equal must hash equal,
and the docs also state this
http://docs.python.org/dev/reference/datamodel.html#object.__hash__
I'm hoping somebody can tell me what horrible thing will happen if this
isn't the case? Here's a toy example of a class I'm
Thinking about class APIs and validating a class against an API. The abc
module provides the tools to do some of this. One thing I realized, that I
hadn't noticed before, is that the abstractness of a class is measured when
instances of the class are created. This happens in object.__new__
(pyob
On May 20, 10:18 am, Chris Angelico wrote:
> On Fri, May 20, 2011 at 3:05 PM, rusi wrote:
> > - data can be code -- viruses
>
> It's not JUST viruses. There's plenty of legitimate reasons for your
> data to actually be code... that's how compilers work! :)
>
> Chris Angelico
Yes sure Thanks.
An
On Fri, May 20, 2011 at 3:05 PM, rusi wrote:
> - data can be code -- viruses
It's not JUST viruses. There's plenty of legitimate reasons for your
data to actually be code... that's how compilers work! :)
Chris Angelico
--
http://mail.python.org/mailman/listinfo/python-list
On May 20, 2:21 am, Rikishi42 wrote:
> On 2011-05-18, Hans Georg Schaathun wrote:
>
> > Now Mac OS X has maintained the folder concept of older mac generations,
> > and Windows has cloned it. They do not want the user to understand
> > recursive data structures, and therefore, naturally, avoid t
There have been a number of unrelated discussions regarding recursion
on this list.
I believe that recursion occurs in a wider spread of areas than is
usually recognised.
Heres a list of some such areas.
Please note I am using recursion in a broad and somewhat fuzzy sense.
Narrow specific definiti
On Thu, 19 May 2011 23:21:30 +0200, Rikishi42
wrote:
: On 2011-05-18, Hans Georg Schaathun wrote:
: > Now Mac OS X has maintained the folder concept of older mac generations,
: > and Windows has cloned it. They do not want the user to understand
: > recursive data structures, and therefore, n
On Thu, 19 May 2011 17:56:12 -0700, geremy condra
wrote:
: TL;DR version: large systems have indeed been verified for their
: security properties.
: (...)
: Yup. Nothing is safe from idiots.
The difficult part is mapping those properties to actual requirements
and threat models. Formal meth
Hi,
I'm using python2.5 in maya 2009 x64 (in linux). I have a script running and
somewhere in the script, I want to start another python script that might
not return and i don't want the main maya python script to wait for it to
finish, even more, after the second script started, I'd like the main
On Mon, May 16, 2011 at 7:29 PM, Gabriel Genellina
wrote:
>
> Your script worked fine for me, 2.6 and XP also. Perhaps your monitor
> device driver is buggy or does not implement the required functionality.
> Mine is from Philips.
>
>
I'm actually using windows 7. Maybe its the difference in OS? A
On Fri, May 20, 2011 at 8:25 AM, MRAB wrote:
> On 20/05/2011 03:13, Navkirat Singh wrote:
>
>> Hi Guys,
>>
>> I have been wondering for a while now as to why some classes inherit
>> Object? And what does it really do for the class? Can anyone shed some
>> light on this?
>>
>> Read section 3.3 "N
Hi Nav:
Here is the long why.
http://www.python.org/download/releases/2.2.3/descrintro/
I guess for most programs, there is no big difference. But in
term of some new added features in python, you might not be able to
work. Say, you could not use super in type, also you can't mul
Hi Nav:
Here is the long why.
http://www.python.org/download/releases/2.2.3/descrintro/
I guess for most programs, there is no big difference. But in
term of some new added features in python, you might not be able to
work. Say, you could not use super in type, also you can't mul
Hi Nav:
Here is the long why.
http://www.python.org/download/releases/2.2.3/descrintro/
I guess for most programs, there is no big difference, but if
you use some special features that might be different. Say, could use
super when using type() instead of class(), also, when using m
On 20/05/2011 03:13, Navkirat Singh wrote:
Hi Guys,
I have been wondering for a while now as to why some classes inherit
Object? And what does it really do for the class? Can anyone shed some
light on this?
Read section 3.3 "New-style and classic classes" in the Python docs.
--
http://mail.pyt
On Fri, May 20, 2011 at 12:30 PM, geremy condra wrote:
>> On Fri, May 20, 2011 at 10:56 AM, geremy condra wrote:
>>> Yup. Nothing is safe from idiots.
>
> I actually think I need to take this statement back. The more I think
> about it, the less convinced I am that it's correct- I can at least
>
On Thu, May 19, 2011 at 6:33 PM, Chris Angelico wrote:
> On Fri, May 20, 2011 at 10:56 AM, geremy condra wrote:
>>> Speaking of reasonable assumptions, one necessary assumption which is
>>> particularly dodgy is that whoever deploys and configures it
>>> understands all the assumptions and do not
Hi Guys,
I have been wondering for a while now as to why some classes inherit Object?
And what does it really do for the class? Can anyone shed some light on
this?
Regards,
Nav
--
http://mail.python.org/mailman/listinfo/python-list
On Fri, May 20, 2011 at 10:56 AM, geremy condra wrote:
>> Speaking of reasonable assumptions, one necessary assumption which is
>> particularly dodgy is that whoever deploys and configures it
>> understands all the assumptions and do not break them through ignorance.
>
> Yup. Nothing is safe from
On Thu, May 19, 2011 at 11:23 AM, Hans Georg Schaathun
wrote:
> On Thu, 19 May 2011 10:23:47 -0700, geremy condra
> wrote:
> : Let me get this straight: your argument is that operating *systems*
> : aren't systems?
>
> You referred to the kernel and not the system. The complexities of
> the
t...@sevak.isi.edu (Thomas A. Russ) writes:
> "Pascal J. Bourguignon" writes:
>
>> t...@sevak.isi.edu (Thomas A. Russ) writes:
>> >
>> > This will only work if there is a backpointer to the parent.
>>
>> No, you don't need backpointers; some cases have been mentionned in the
>> other answer, but
Hans Georg Schaathun writes:
> ["Followup-To:" header set to comp.lang.python.]
Ignored, since I don't follow that group.
> On Wed, 18 May 2011 20:20:01 +0200, Raymond Wiker
>wrote:
> : I don't think anybody mentioned *binary* trees. The context was
> : directory traversal, in which cas
"Pascal J. Bourguignon" writes:
> t...@sevak.isi.edu (Thomas A. Russ) writes:
> >
> > This will only work if there is a backpointer to the parent.
>
> No, you don't need backpointers; some cases have been mentionned in the
> other answer, but in general:
>
> (defun parent (tree node)
>
On Thu, May 19, 2011 at 3:47 PM, Steven D'Aprano
wrote:
> On Tue, 17 May 2011 10:02:21 -0700, geremy condra wrote:
>
>> or O(1):
>>
>> φ = (1 + sqrt(5)) / 2
>> def fib(n):
>> numerator = (φ**n) - (1 - φ)**n
>> denominator = sqrt(5)
>> return round(numerator/denominator)
>
> I'd just li
On Fri, May 20, 2011 at 8:47 AM, Steven D'Aprano
wrote:
> On Tue, 17 May 2011 10:02:21 -0700, geremy condra wrote:
>
>> or O(1):
>>
>> φ = (1 + sqrt(5)) / 2
>> numerator = (φ**n) - (1 - φ)**n
>
> I'd just like to point out that, strictly speaking, it's only O(1) if you
> assume that exponentia
On Tue, 17 May 2011 10:02:21 -0700, geremy condra wrote:
> or O(1):
>
> φ = (1 + sqrt(5)) / 2
> def fib(n):
> numerator = (φ**n) - (1 - φ)**n
> denominator = sqrt(5)
> return round(numerator/denominator)
I'd just like to point out that, strictly speaking, it's only O(1) if you
assum
On Thu, 19 May 2011 05:42:29 -0700, lkcl wrote:
> has anyone considered the idea of literally creating a Python2/
> subdirectory in the python3 codebase, literally just dropping the entire
> python2.N code directly into it, renaming all functions and data
> structures, adding a "--2-compatible" s
Andrew Berg wrote:
ElementTree doesn't seem to have been updated in a long time, so I'll
assume it won't work with Python 3.
I don't know how to use it, but you'll find ElementTree as xml.etree in
Python 3.
~Ethan~
--
http://mail.python.org/mailman/listinfo/python-list
On 05/19/2011 11:35 PM, Andrew Berg wrote:
On 2011.05.16 02:26 AM, Karim wrote:
Use regular expression for bad HTLM or beautifulSoup (google it), below
a exemple to extract all html links:
Actually, using regex wasn't so bad:
import re
import urllib.request
url = 'http://x264.nl/x264/?dir=./6
On 2011.05.16 02:26 AM, Karim wrote:
> Use regular expression for bad HTLM or beautifulSoup (google it), below
> a exemple to extract all html links:
Actually, using regex wasn't so bad:
> import re
> import urllib.request
>
> url = 'http://x264.nl/x264/?dir=./64bit/8bit_depth'
> page = str(urllib
On 2011-05-18, Hans Georg Schaathun wrote:
> Now Mac OS X has maintained the folder concept of older mac generations,
> and Windows has cloned it. They do not want the user to understand
> recursive data structures, and therefore, naturally, avoid the word.
You imply they want to keep their user
On 2011.05.19 03:08 PM, Tim Golden wrote:
> * A R_OK check always succeeds if the file's attributes can be read
>at all
So is this the same as F_OK then, or does it return false if the user
isn't allowed to read permissions?
> * A W_OK check fails if the file has its DOS read-only attribute set
Hi
is there any open source library for python that can allow application
level monitoring ? For example,application can send per request level/
aggregated monitoring events and some remote server dump it and show
in the monitoring graph in real time ? What's best way of doing
that ?
--
http://
On Thu, 19 May 2011 21:03:34 +0300, Mathew wrote:
I have installed a new version of Python27 in a new directory. I want to get
this info into the registry so, when I install Numpy, it will use my new
Python
If I understand correctly (you have multiple Python 2.7 installations and what
to mak
On 19/05/2011 20:56, Andrew Berg wrote:
On 2011.05.19 02:43 PM, Tim Golden wrote:
This is basically issue2528 [1].
The problem is that, although Windows (and Python)
expose a version of os.access to match the Posix function,
the meaning is so far removed on Windows as to be useless.
Does this a
On 2011.05.19 02:43 PM, Tim Golden wrote:
> This is basically issue2528 [1].
> The problem is that, although Windows (and Python)
> expose a version of os.access to match the Posix function,
> the meaning is so far removed on Windows as to be useless.
Does this affect just os.W_OK and directories o
On 19/05/2011 20:37, Ayaskanta Swain wrote:
Please help me in solving this issue. I want to check the write
permissions on a directory on windows from my python script.
I tried to use *os.access(dirpath, os.W_OK)*to check whether the user
has write access or not, but it gives me incorrect result
Hi All,
Please help me in solving this issue. I want to check the write
permissions on a directory on windows from my python script.
I tried to use os.access(dirpath, os.W_OK) to check whether the user
has write access or not, but it gives me incorrect result. It always
gives me False even
Hi
I have installed a new version of Python27 in a new directory. I want to get
this info into the registry so, when I install Numpy, it will use my new
Python
TIA
-Mathew
--
http://mail.python.org/mailman/listinfo/python-list
On Thu, 19 May 2011 10:23:47 -0700, geremy condra
wrote:
: Let me get this straight: your argument is that operating *systems*
: aren't systems?
You referred to the kernel and not the system. The complexities of
the two are hardly comparable.
There probably are different uses of system; in
On Wed, May 18, 2011 at 7:54 PM, harrismh777 wrote:
> Littlefield, Tyler wrote:
> Four resources that you will what to look into, in no particular order:
>
> Erickson, Jon, "Hacking: The Art of Exploitation," 2nd ed,
> San Francisco: No Starch Press, 2008.
This would be a very good choi
On Wed, May 18, 2011 at 10:21 PM, Hans Georg Schaathun
wrote:
> On Wed, 18 May 2011 14:34:46 -0700, geremy condra
> wrote:
> : Systems can be designed that are absolutely secure under reasonable
> : assumptions. The fact that it has assumptions does not make your
> : statement true.
> : (...
The best module for doing such things is subprocess. And the Popen object has a
pid attribute
(http://docs.python.org/library/subprocess.html#subprocess.Popen.pid)
--
http://mail.python.org/mailman/listinfo/python-list
hello,
I'm using to launch a program by subprocess.getstatusoutput. I'd like to
know whether I can get the program ID, in order to avoid another launch.
For clarity sake, I'm calling aria2 (the download manager for linux) and I
wouldn't like to call one more instance of it. So what will I use t
Share as little as possible between your various processes - shared, mutable
state is a parallelism tragedy.
If you can avoid sharing an entire dictionary, do so. It'd probably be
better to dedicate one process to updating your dictionary, and then using a
multiprocessing.Queue to pass delta reco
On May 18, 11:02 pm, Terry Reedy wrote:
> On 5/18/2011 5:24 AM, lkcl wrote:
>
> There seem to be two somewhat separate requirement issues: the
> interpreter binary and the language version.
yes. [with the startling possibility of compiling the entire pyjs
compiler into javascript and executing
Hi all,
I'm a bit struggling to understand a KeyError raised by the multiprocessing
library.
My idea is pretty simple. I want to create a server that will spawn a number of
workers that will share the same socket and handle requests independently. The
goal is to build a 3-tier structure where a
A version of the Gambit Scheme system for iPhone/iPod touch/iPad is
now available on the Apple App Store:
http://itunes.apple.com/us/app/gambit-repl/id434534076?mt=8&ls=1
"Gambit REPL" is a complete version of Gambit (http://
dynamo.iro.umontreal.ca/~gambit) including the interpreter, debugger
[changing subject, seems a good idea...]
On May 19, 2:13 am, Terry Reedy wrote:
> On 5/18/2011 9:42 AM, lkcl wrote:
>
> > he's got a good point, terry. breaking backwards-compatibility was a
> > completely mad and incomprehensible decision.
>
> I see that I should take everything you (or Harri
Hi Sławek,
You could also do a local or private egg repository. I documented how I did
this for my internal projects here:
http://www.sourceweaver.com/posts/private-python-egg-repository
I hadn't come across z3c.pymirror before.
All the best,
Oisin
On 19 May 2011 10:12, Slafs wrote:
> Hi the
The behaviour of pexpect has changed between version 2.1 and 2.3. In
version 2.1, the following code would result in child.before being
cleared -:
>>>child.expect(pexpect.TIMEOUT,1)
In version 2.3, this is no longer the case. No matter how many times
the above code is run, child.before con
On Wed, 18 May 2011 07:16:40 -0700, Jean-Paul Calderone wrote:
> Setting SA_RESTART on SIGINT is probably the right thing to do. It's not
> totally clear to me from the messages in this thread if you managed to get
> that approach working.
He didn't; select() isn't SA_RESTART-able.
Unfortunatel
There's no point in posting this here.
Use the bug tracker: http://bugs.python.org/
--- Giampaolo
http://code.google.com/p/pyftpdlib/
http://code.google.com/p/psutil/
2011/5/17 nirinA raseliarison :
>
> ==
> FAIL: test_failures_
On May 18, 11:42 pm, Ian Kelly wrote:
> I was wrong, it's more complicated than that.
>
> >>>logging.getLogger('log').warning('test')
>
> No handlers could be found for logger "log">>>logging.warning('test')
> WARNING:root:test
> >>>logging.getLogger('log').warning('test')
>
> WARNING:log:test
>
>
Please file a ticket on:
http://bugs.python.org/
Regards,
--- Giampaolo
http://code.google.com/p/pyftpdlib/
http://code.google.com/p/psutil/
2011/5/17 nirinA raseliarison :
> i think this has the same origin as the ftplib test failure.
>
> Python 3.2.1rc1 (default, May 17 2011, 22:01:34)
> [GCC
On 19 May 2011 08:47:28 GMT, Steven D'Aprano
wrote:
: The real barrier to cracking Oyster cards is not that the source code is
: unavailable, but that the intersection of the set of those who know how
: to break encryption, and the set of those who want to break Oyster cards,
: is relative
Hi there.
I would like to make a "local" mirror of some packages that are on
pypi. What options do You recommend ?
I am leaning towards z3c.pypimirror because it was kind of first on my
google search results.
Regards
Sławek
--
http://mail.python.org/mailman/listinfo/python-list
On Thu, 19 May 2011 06:21:08 +0100, Hans Georg Schaathun wrote:
> : Are you talking about the Mayfair classical cipher here?
>
> I am talking about the system used in public transport cards like Oyster
> and Octopus. I am not sure how classical it is, or whether
> mayfair/mayfare referred to th
On Thu, May 19, 2011 at 9:23 AM, VGNU Linux wrote:
>
>
> On Tue, May 17, 2011 at 1:20 PM, VGNU Linux wrote:
>>
>> Hi all,
>> I am confused on which web framework to select for developing a small data
>> driven web application. Application will have features generally found in
>> now-a-days web ap
You are right that behavior isn't documented and might be a bug. You could
report it.
Bye
El 19 de mayo de 2011 00:42, Ian Kelly escribió:
> 2011/5/18 Ian Kelly :
> > Ah, that's it. I was using Python 2.5. Using 2.7 I get the same
> > result that you do.
> >
> > Still, it's a surprising chang
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