Summary:
---
DOPAL is a library to allow programs written in Python to easily
communicate the Java BitTorrent client Azureus, via the XML/HTTP plugin
(allowing communication over a network).
Changes:
---
Version 0.56 is the third public release of DOPAL. One of the main
changes is support
Hi,
== Existence of Local User Groups ==
I am in the process of forming a Python User Group for Champaign-Urbana
and surrounding areas, but I would like to make sure there is not
already a very unpublicized (very, very hard to find) user group for
Python in the area (Decatur, Bloomington or C-U
In order to facilitate small groups
working on specific Python-in-Education projects, we have launched an
edupython list on google groups(http://groups.google.com/group/edupython
or [EMAIL PROTECTED]).
We envision participation by people trying to coordinate work on the
nuts and bolts
Em Seg, 2006-03-13 às 08:21 +0100, Gregor Horvath escreveu:
Hi,
I do not understand why __del__ does not get executed in the following
example.
It only collects when there are no references:
class A(object):
... def __init__(self):
... print A's init
... def
EP wrote:
This is likely a stupid question,
There seems to be a cult believing that calling one's own question stupid
magically diminishes its degree of stupidity. In reality, as a compiler
would put it, code has no effect.
but I am confused about what is going
on with class attributes as
swisscheese wrote:
Using the Komodo IDE under XP I often get python.exe has encountered a
problem and needs to close. Running python direct on the same app
gives a list index out of bounds error. Any ideas how to get Komodo to
give the proper error?
is your application using any non-standard
Hi
I wonder if Python is capable of the following: define a function which
returns its argument.
I mean:
def magic_function(arg):
.. some magic code ...
that behaves the following way:
assert magic_function(3+4)==3+4
assert magic_function([i for i in range(10)])==i for i in
[EMAIL PROTECTED] writes:
assert magic_function(3+4)==3+4
assert magic_function([i for i in range(10)])==i for i in range(10)]
It is not trivial at all and might require some bytecode hacking that i
am unable to do myself BUT you are the experts ;-)
Guhhh... you'd want to use the traceback
Felipe Almeida Lessa schrieb:
del B
# We'll to tell him to collect the garbage here, but
... # usually it should not be necessary.
Thanks. If I do
del B
then the __del__ of A gets called.
That surprises me. I thought that B gets del'd by python when it goes
out of scope?
Do I manually
[Paul Rubin]
It looks to me like you can't have two threads in the same generator:
You can't even have one thread in a generator-iterator get away with
activating the generator-iterator while it's already active. That's
an example in PEP 255:
Restriction: A generator cannot be resumed
Gregor Horvath wrote:
#!/usr/bin/python
class A(object):
def __init__(self):
print init
def __del__(self):
print del
test1.py
#!/usr/bin/python
import test
class B(object):
a = test.A()
Running test1.py outputs:
init
the del is missing.
I suppose
Duncan Booth schrieb:
What is less obvious is that new style classes always include circular
references, so a class is never detroyed until the garbage collector runs.
Thanks. I tried the same example with old style classes and A.__del__
gets correctly called.
Of course, if your __del__
[Duncan Booth]
No, Python doesn't run the garbage collector when it is exiting.
Actually, it does. What it doesn't do is call the garbage collector
twice when it exits, although it used to ;-)
What it does is to delete all the globals from each module in turn. So:
Yup. The code is in
Paul Rubin wrote:
[EMAIL PROTECTED] writes:
assert magic_function(3+4)==3+4
assert magic_function([i for i in range(10)])==i for i in range(10)]
It is not trivial at all and might require some bytecode hacking that i
am unable to do myself BUT you are the experts ;-)
Guhhh... you'd want
Hi all
I am writing a multi-user accounting/business application, which uses
sockets to communicate between client and server. I want to offer the
option of encrypting the traffic between the two. The main reason for
this is to cater for wireless communication.
I have read up on SSL, and more or
Can someone post a link or email me an image of the old Python logo?
I'd like to save a copy of it, I rather liked it - very retro.
the dot matrix logo ?
you can get a copy from this page:
That website is down. You could try the archive as well:
Josef Meile wrote:
Can someone post a link or email me an image of the old Python logo?
I'd like to save a copy of it, I rather liked it - very retro.
the dot matrix logo ?
you can get a copy from this page:
That website is down. You could try the archive as well:
Gregor Horvath wrote:
Of course, if your __del__ method actually does get invoked during
program exit you have to be pretty careful what you do: the chances
are any global variables you used in __del__ have already been
destroyed in particular any modules you imported may have been
deleted.
Josef Meile wrote:
you can get a copy from this page:
That website is down. You could try the archive as well:
http://web.archive.org/web/20050401015445/http://www.python.org/
it's down for maintenance, but it wasn't down when I posted
that link...
you don't have to use the archive, btw.
Duncan Booth schrieb:
First off, never depend on __del__ to do anything critical. The only
Thanks to all of you!
Everything's clear now!
--
Greg
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[EMAIL PROTECTED] wrote:
Hi
I wonder if Python is capable of the following: define a function which
returns its argument.
I mean:
def magic_function(arg):
.. some magic code ...
that behaves the following way:
assert magic_function(3+4)==3+4
assert magic_function([i for i
Hi,
I'd like to know, if it's possible to implement EJB bean classes in
Python. I mean, Jython provides to possible to create *.class files
from python modules. How must my python module look like to create a
valid enterprise bean class from it.
Thanks in advance,
--
A.M. Kuchling wrote:
On Sat, 11 Mar 2006 16:50:26 +1100,
richard [EMAIL PROTECTED] wrote:
So I did what people always do in this situation, I asked Barry Warsaw to
name. it. And he did, Cheese Shop. I liked the name, so it was done. When
the new pydotorg machines went live last year, so
Hi everyone,
I'm new to python, and I was wondering if anyone could help me with a
couple of problems I've hit please?
I'm trying to write a wrapper script for the passwd command, so that we
can log everytime someone uses it, which options they used with it and
if they succeeded or cancelled the
A.M. Kuchling enlightened us with:
Given the endless whiny complaints about the name, though, I think
we should just give up and go back to PyPI (pronounced 'Pippy').
I love The Python Cheese Shop. It's original and distinctive. Besides
that, it gives you more information that PyPI since Python
Frank Millman enlightened us with:
while 1:
conn,addr = s.accept()
c = TLSConnection(conn)
c.handshakeServer(certChain=certChain,privateKey=privateKey)
data = c.recv(1024)
It's nice that you set up a TLS connection, but you never check the
certificate of the other
any non-standard (i.e. non-bundled) C extensions ?
No.
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Not every name has to fully reflect the named. I mean, Microsoft is
the largest software company on the planet, but no way that you can
guess that from the name.
MICRO computer SOFTware. Seems pretty obvious to me and I'd expect the
same from any tech person.pipi and cheese shop both
reinsn wrote:
Hi,
I'd like to know, if it's possible to implement EJB bean classes in
Python. I mean, Jython provides to possible to create *.class files
from python modules. How must my python module look like to create a
valid enterprise bean class from it.
You have to compile a class
In which physical file are the python environmental variables located?
I know I can access them using the:
os.environ.get('PYTHONSTARTUP')
or
os.environ.get('PYTHONPATH')
to get their values. But out of the program, if I need to look at them
and alter their values, where do I find them? Are
Michael enlightened us with:
Microsoft is the largest software company on the planet, but no way
that you can guess that from the name.
MICRO computer SOFTware. Seems pretty obvious to me
Where is the size of the company in that story? The fact that they
make software is rather obvious
Anyone knows if this platform is a good one?
It's very good. It's comfortable, helpful and stable. Also looks good.
Eclipse + Pydev does most, if not all, of your list - I am not sure what
you mean by conditional pause - plus a whole lot more.
Maybe he means conditional breakpoints?
Sathyaish wrote:
In which physical file are the python environmental variables located?
I know I can access them using the:
os.environ.get('PYTHONSTARTUP')
or
os.environ.get('PYTHONPATH')
to get their values. But out of the program, if I need to look at them
and alter their
import re
r = re.compile('(a|b*)+')
Traceback (most recent call last):
File stdin, line 1, in ?
File c:\python24\lib\sre.py, line 180, in compile
return _compile(pattern, flags)
File c:\python24\lib\sre.py, line 227, in _compile
raise error, v # invalid expression
Sathyaish wrote:
In which physical file are the python environmental variables located?
I know I can access them using the:
os.environ.get('PYTHONSTARTUP')
or
os.environ.get('PYTHONPATH')
to get their values. But out of the program, if I need to look at them
and alter their values,
Sybren Stuvel wrote:
Frank Millman enlightened us with:
while 1:
conn,addr = s.accept()
c = TLSConnection(conn)
c.handshakeServer(certChain=certChain,privateKey=privateKey)
data = c.recv(1024)
It's nice that you set up a TLS connection, but you never check
Skipper wrote:
Hi All,
I am going to try and learn Python because I want to write at least
one program to help my disabled son with communitation.
I am not asking for anyone to do this for me I simply want to know if
I can do what I need to do with Python
Basically the program
Frank Millman [EMAIL PROTECTED] writes:
I was hoping to avoid this step. The point of the exercise for me is
encryption. I am not too worried about authentication. The next step in
my app is for the client to enter a user id and password, and the
server will not proceed without verifying this.
Paul Rubin wrote:
Frank Millman [EMAIL PROTECTED] writes:
I was hoping to avoid this step. The point of the exercise for me is
encryption. I am not too worried about authentication. The next step in
my app is for the client to enter a user id and password, and the
server will not proceed
Vim + iPython does most of it doesn't it?
That's where I am after I became a bit frustrated with Idle (which I
still use on odd occasions).
EuGeNe
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Thanks for the replies.
I am trying to have a startup file execute everytime I launch the
interpreter. So, for a test, I wrote a small file I called
Sathyaish.py. The contents of the file were simply:
# ! This is my new start-up file.
print Sathyaish is the best.
Then, in the interpreter, on
Frank Millman enlightened us with:
The point of the exercise for me is encryption. I am not too worried
about authentication.
Encryption can't function fully without authenication.
The next step in my app is for the client to enter a user id and
password, and the server will not proceed
[EMAIL PROTECTED] wrote:
import re
r = re.compile('(a|b*)+')
Traceback (most recent call last):
File stdin, line 1, in ?
File c:\python24\lib\sre.py, line 180, in compile
return _compile(pattern, flags)
File c:\python24\lib\sre.py, line 227, in _compile
raise error, v #
Fredrik Lundh wrote:
I have no time to sort out why your second example doesn't give the
same error
oh, it was there it went.
/F
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was what I got. I checked the at DOS prompt (cmd) for PYTHONSTARTUP,
and I got an 'unrecognized program/command/batch file' interrupt.
What's the deal with environmental variables? Are they specific to an
interpreter session? That shouldn't be.
Yes they are - and yes, it should be that way.
Sathyaish wrote:
What's the deal with environmental variables? Are they specific to an
interpreter session? That shouldn't be.
If you think that then complain to Microsoft, or even the people who
developed Unix since that is what Microsoft based their environment
variables on.
Environment
Sathyaish wrote:
What's the deal with environmental variables? Are they specific to an
interpreter session?
they're copied from the parent process when a new process is started,
and any changes to them are local to the process.
That shouldn't be.
that's how environment variables work, on
[EMAIL PROTECTED] wrote:
import re
r = re.compile('(a|b*)+')
Traceback (most recent call last):
File stdin, line 1, in ?
File c:\python24\lib\sre.py, line 180, in compile
return _compile(pattern, flags)
File c:\python24\lib\sre.py, line 227, in _compile
raise error, v #
Thank you all so much for your input. The feedback was perfect. I
did not realizethis may be difficult under any circumstances.
I am very familiar with PowerPoint and will try the open office
thing...
I can not believe that there isn't a GUI programing tool that will
allow me to build GUI apps
I recall now, the shells in Unix - a child inherited the variables
declared in its parent but not vice-versa. It works the same way in
DOS. So, I wasn't seeing it clearly earlier. I am seeing it clearly
now. I was imagining that the PYTHONPATH had some default value on
installation and was
Sybren Stuvel wrote:
Frank Millman enlightened us with:
The point of the exercise for me is encryption. I am not too worried
about authentication.
Encryption can't function fully without authenication.
Ok, I have been thinking about the replies from you and Paul, and I am
confused
Gregor Horvath wrote:
Felipe Almeida Lessa schrieb:
del B
# We'll to tell him to collect the garbage here, but
... # usually it should not be necessary.
Thanks. If I do
del B
then the __del__ of A gets called.
That surprises me.
Why ?
I thought that B gets del'd by python when it
Frank Millman [EMAIL PROTECTED] writes:
What I have not understood is how to prevent this. How can the client
distinguish between a valid server and a fraudulent one? If it obtains
the server credentials dynamically, the fraudulent server can supply
fraudulent credentials. If somehow the
Skipper enlightened us with:
I can not believe that there isn't a GUI programing tool that will
allow me to build GUI apps
There are plenty of them.
just like I use Dreamweaver to build a web page
Which produces horrible HTML.
Sybren
--
The problem with the world is stupidity. Not saying
Frank Millman enlightened us with:
If I understand correctly, a 'man-in-the-middle' attack would
involve someone setting up a 'pseudo server', which gives the
correct responses to the client's attempt to log in
That's right. Usually it's done by proxying the data between the
client and the
Ive found hk_classes a C++/Python library/module for accesing
databases. It works nice for me but I wonder if someone used
hk_classes in a project, is this module good, etc.
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Does anybody know of a tool that will take a module as input, look for
any wildcard imports, and then identify what symbols in the module come
from which wildcard import? It could then expand out the from module
import * to from module import foo, bar. It might need to ask the user
on this,
Joel Hedlund wrote:
If you install Eclipse and try to use it without reading the
Workbench User Guide then you are not going to get anywhere.
Woah, easy now! I never read any Workbench User Guide and I'm doing
just fine with PyDev. Fabio Zadrozny (PyDev developer) wrote an
excellent
Hello,
I'm writing a cgi script which only needs to run in a small LAN. I tried
to show dates in a reasonable format by using
import locale
import datetime
locale.setlocale(locale.LC_ALL, '')
...
dt = datetime.date.today()
print dt.strftime('%x')
This works well in other scripts or at the
I got it working! There was another thread http://tinyurl.com/pebqc on
this group where someone had the same problem. I changed my code to
the following:
from twisted.internet.task import LoopingCall
from twisted.internet import reactor
import os, sys, wave, audioop
While playing the contents
Paul Rubin enlightened us with:
for example, OpenSSL (www.openssl.org) comes with a simple Perl
script that acts as a rudimentary CA.
I never understood those CA scripts. I mean, creating a new CA
certificate only has to be done once, and is:
openssl req -new -x509 -key $KEY -out $OUT -days
As the OP, i thought i'd follow up with my experience, in case anyone else
is learning pyopengl and as mystified as i was (am?).
Thank you to all the posters who responded, especially the one who
mentioned display lists...
Initially, i had built a very simple prototype, getting 5 fps. This
Raymond Hettinger wrote:
Is a copy.deepcopy ( - cPickle.dump(copy.deepcopy(obj),f) ) an
atomic opertion with a guarantee to not fail?
No. It is non-atomic.
It seems that your application design intrinsically incorporates a race
condition -- even if deepcopying and pickling were atomic,
[EMAIL PROTECTED] wrote:
Would rsync into a remote encrypted filesystem work for you?
the sync (selection) is custom anyway. The remote filesystem is
general/unknow. FTP(S) / SFTP is the only standard given.
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Keith Jackson wrote:
Does anybody know of a tool that will take a module as input, look for
any wildcard imports, and then identify what symbols in the module come
from which wildcard import? It could then expand out the from module
import * to from module import foo, bar. It might need to
Fredrik wrote:
your definition of equivalent is a bit unusual:
re.match((a|b*c*)+, abc).groups()
('',)
re.match((a|b)*, abc).groups()
('b',)
re.match((a|b|c)*, abc).groups()
('c',)
that you don't get an error for
r = re.compile('(a|b*c*)+')
r.match('def').group()
might be a
Sorry to offend, I was just extrapoloating from personal experience.
No worries, man. No offense taken :-)
but I could not get going with Eclipse
...
Even installing it the first time seemed to be a mystery.
Yeah I felt the same too when I first installed it. I had in fact given up
using
Sorry but I doesn't understand your need. If you need a ''dinamic''
import, you can use __import__(module)
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perfect!
that worked great!
thank you!
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Am Fri, 10 Mar 2006 16:10:09 +0100 schrieb Sybren Stuvel:
Thomas Guettler enlightened us with:
The licence for QT is GPL, this means you cannot use it in
commercial application. That is why I never looked at it.
Ehmm... from their website:
From
I believe the problem exists with any processor that supports
hardware-based data execution prevention (DEP).
Goto
Control Panel - System - Advanced tab - Performance Settings - DEP tab.
Turn on DEP for all ... except those I select:
Add the Pythonwin.exe to the list.
Now it should work.
-D
Hi,
Anyone know of something that can turn an interactive bash or tcsh
session into a test the
way doctest does?
- Cheers, Paddy.
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Thomas Guettler enlightened us with:
There is a GPL version for Linux. But the GPL does not allow linking
with closed source software.
The availability of a GPL license does not negate the availability of
a commercial license. You can write commercial, closed source software
on Linux using Qt
robert wrote:
Meanwhile I think this is a bug of cPickle.dump: It should use .keys()
instead of free iteration internally, when pickling elementary dicts.
I'd file a bug if no objection.
What should happen if there's a delete between the time the .keys()
runs and the time that the deleted
While I was reading PEP 8 I came across this part:
Function and method arguments
Always use 'self' for the first argument to instance methods.
Always use 'cls' for the first argument to class methods.
Now I'm rather new to programming and unfamiliar to some basic concepts
of OOP.
Steven D'Aprano wrote:
[Generally fine stuff, I am elaborating rather than dis-agreeing.]
On Sun, 12 Mar 2006 22:01:46 -0500, John Salerno wrote:
Erik Max Francis wrote:
You can use the struct module for converting fundamental types to a
portable string representation for writing to binary
[EMAIL PROTECTED] wrote:
... Is the Python debugger fairly stable?
Yes, but it is not massively featured. The Pythonic way is to
rarely use a debugger (test first and straightforward code should
lead to shallow bugs). Often for most of us judiciously placed
print statements suffice.
The one
Martin P. Hellwig wrote:
While I was reading PEP 8 I came across this part:
Function and method arguments
Always use 'self' for the first argument to instance methods.
Always use 'cls' for the first argument to class methods.
Now I'm rather new to programming and unfamiliar to
Skipper wrote:
... I am not asking for anyone to do this for me I simply want to
know if I can do what I need to do with Python
Can python do this? I realize I am responsible for the menu sets,
pictures attaching sounds etc
As you have been told by many other respondents
Scott David Daniels wrote:
... Is the Python debugger fairly stable?
Yes, but it is not massively featured. The Pythonic way is to
rarely use a debugger (test first and straightforward code should
lead to shallow bugs). Often for most of us judiciously placed
print statements suffice.
Sathyaish wrote:
In which physical file are the python environmental variables located?
I know I can access them using the:
os.environ.get('PYTHONSTARTUP')
or
os.environ.get('PYTHONPATH')
to get their values. But out of the program, if I need to look at them
and alter their
In order to facilitate small groups
working on specific Python-in-Education projects, we have launched an
edupython list on google groups(http://groups.google.com/group/edupython
or [EMAIL PROTECTED]).
We envision participation by people trying to coordinate work on the
nuts and bolts
Hell, this sounds interesting. Do you mean like matching commands when
they are not yet complete, like
sh tech
instead of:
show tech-support
?
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BWill wrote:
and ixnay on the ubyray or else I'll tell you where to stick your
endblock delimiter :P
OK, I can't help it... which is more readable:
a_string.reverse(ruby)
a_string[::-1] (python)
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Kay Schluehr wrote:
Storing arguments away before they are evaluated doesn't work in
Python. You have to hack the compiler in order to access the parsetree.
You might take a look at the compiler package of the standard library
that enables access to ASTs. Thus you could define lazy evaluation
In article [EMAIL PROTECTED],
[EMAIL PROTECTED] wrote:
Hi
I wonder if Python is capable of the following: define a function which
returns its argument.
I mean:
def magic_function(arg):
.. some magic code ...
that behaves the following way:
assert
rtilley [EMAIL PROTECTED] writes:
a_string.reverse (ruby)
a_string[::-1](python)
reversed(a_string) (python)
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Hello all,
I'm trying to find substrings that look like 'FOO blah blah blah'
in a string. For example give 'blah FOO blah1a blah1b FOO blah2
FOO blah3a blah3b blah3b' I want to get three substrings,
'FOO blah1a blah1b', 'FOO blah2', and 'FOO blah3a blah3b blah3b'.
I've tried numerous variations
Paul Rubin wrote:
reversed(a_string) (python)
Which version of Python offers this function? It doesn't seem to be
available in the 2.3 version I have installed...
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gregarican [EMAIL PROTECTED] writes:
reversed(a_string) (python)
Which version of Python offers this function? It doesn't seem to be
available in the 2.3 version I have installed...
I think it's new in 2.4.
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Thomas Guettler wrote:
Have you read all the text?
Two qualities of the Qt Commercial License should be emphasized:
You need it before you start development of proprietary software.
You must purchase a Qt Commercial License from Trolltech or from any of
its authorized resellers before
Dennis Lee Bieber wrote:
The Amiga did have a means for such... It differentiated between
local and global environment variables. Locals were kept in a process
memory structure and behaved as they do on most other OSs... Globals,
however, were short files maintained in ENV: (a logical name to
[EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Hi
I wonder if Python is capable of the following: define a function which
returns its argument.
I mean:
def magic_function(arg):
.. some magic code ...
that behaves the following way:
assert magic_function(3+4)==3+4
Hi
I don't think this is what you want (a string representation of the
argument passed to a function as that argument is at runtime is way
beyond my abilities), but this can retrieve the literal text in the
function call as it appears in the .py file, assuming you have the .py
file available
Paul Boddie [EMAIL PROTECTED] writes:
What people don't usually understand (or rather complain about loudly)
is that Trolltech can refuse to license Qt to you under the commercial
licence, as is their right as the owner of the copyrighted work.
What is the deal here? Why would they refuse, to
Well that definitly works, thanks. Is there any way to keep the themes
though?
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Skipper wrote:
I can not believe that there isn't a GUI programing tool that will
allow me to build GUI apps - just like I use Dreamweaver to build a
web page ... a WYSIWYG builder that does a few simplet things and
calls other programs ...
Oh well no silver bullet!
If you are
Doh, I am indeed referring to the standard cmd module - thanks!
To [EMAIL PROTECTED], the above module does what you describe.
Thanks again,
David.
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Ravi Teja wrote:
I do not think that technology has gone backwards. Hyper card
alternatives still exist.
http://www.metacard.com/
At $995 per seat it's not likely to be used for a home project.
Kent
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Hello,
Pardon my English...
Does anybody know what I have to do to run only 1 instance of my Python
Application?
How do I check if I'm running more instances of a Application?
Thank you all
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