Re: How to request data from a lazily-created tree structure ?
On Jun 17, 11:54 pm, "Diez B. Roggisch" <[EMAIL PROTECTED]> wrote: > > Do you know if there is suchXPathengine that can be applied to a DOM- > > like structure ? > > No. But I toyed with the idea to write one :) > > > One way would be to take anXPathengine from an existing XML engine > > (ElementTree, or any other), and see what APIs it calls... and see if > > we cannot create a DOM-like structure that has the same API. Duck > > typing, really... > > Why can't you create a *real* DOM? > > Diez I may have found sg: http://sourceforge.net/projects/pdis-xpath/ A XPath 1.0, in pure python, on top of ElementTree. I'll have a look. -- http://mail.python.org/mailman/listinfo/python-list
Re: An idiom for code generation with exec
eliben a écrit :
d = {}
execcode in globals(), d
return d['foo']
My way:
return function(compile(code, '', 'exec'), globals())
With some help from the guys at IRC I came to realize your way doesn't
do the same. It creates a function that, when called, creates 'foo' on
globals(). This is not exactly what I need.
I possibly messed up a couple things in the arguments, flags etc - I
very seldom use compile() and function(). The point was that it didn't
require any extra step.
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Re: Ruby doctest
Paddy <[EMAIL PROTECTED]> wrote: > I monitor changes to the Wikipedia doctest page, and so noticed a > change in the Ruby implementation of doctest. > > Scooting around their implementation I found that they have an !!! > special directive that says drop into the interpreter at this point > when testing allowing debugging in context. > http://github.com/tablatom/rubydoctest/wikis/special-directives > Whereas Python has the more wordy version which works anywhere in ordinary code or in doctests: >>> import pdb; pdb.set_trace() -- Duncan Booth http://kupuguy.blogspot.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Learning Python in a group
On Jun 23, 1:12 pm, Mensanator <[EMAIL PROTECTED]> wrote: > On Jun 22, 5:43�am, "Jonathan Roberts" <[EMAIL PROTECTED]> > wrote: > > > > > Hi all, > > > I'm looking to learn Python (as my first programming language) and I'm > > pretty sure I'd be more successful doing this with a group of other > > people. > > > I've currently got one other person to learn with me, and we plan to > > work remotely over the net using tools such as IM/VoiP/Gobby/WIkis > > etc. We'd still like a few others to work with us, with a group of > > about 5 or 6 being seen as ideal. We'd also like to find somebody to > > act as a mentor/guide who might be happy to meet with us once every > > couple of weeks to help keep us moving in the right direction and find > > solutions to problems when we get really stuck! > > > Wondered if there was anybody here who might be interested in working > > with us in either of these roles? We both have differing goals, but > > ultimately we'd just like to get more familiar so that we can provide > > some simple fixes to packages we maintain/scratch a few itches of our > > own. Any one is welcome, no matter what your own aim :) > > > Would love to hear feedback, especially from anyone who's interested > > in working with us... > > Have you considered creating your own Google Group? > > > > > Best, > > > Jon > > Yeah, set up your personal Google group, post the address here and ask people who want to join in sounds like a better idea rather than asking here. Considering time-zone, I don't know how you guys communicate with each other "real-time". So "post in group, get discuss and reply" may make more sense. -- http://mail.python.org/mailman/listinfo/python-list
Python module for working with a sudden motion sensor on Linux
Hi everyone, I am looking for a python module or something similar which makes use of the capabilities of the kernel module applesmc to provide support for the sudden motion sensor in Apple hardware. It should be something like this: http://pypi.python.org/pypi/PyAppleSMS/1.0 Would it make sense to look for a generic accelerometer module or do I have to use something specific? Thanks for your help in advance! Chris -- http://mail.python.org/mailman/listinfo/python-list
2to3 bug and question
Hi, is this the right group to ask / report problems with python3.0 ? The question: Is it possible to tell 2to3 to replace, say, #!/usr/bin/python by #!/usr/local/bin/python3.0 ? Here the bug: While 2to3 keeps the first line #!/usr/bin/python it removes the first line if it was #!/usr/bin/python -O Is this a bug or a feature? Thanks for hint, Helmut Jarausch Lehrstuhl fuer Numerische Mathematik RWTH - Aachen University D 52056 Aachen, Germany -- http://mail.python.org/mailman/listinfo/python-list
Re: An idiom for code generation with exec
Le Monday 23 June 2008 09:22:29 Bruno Desthuilliers, vous avez écrit : > > With some help from the guys at IRC I came to realize your way doesn't > > do the same. It creates a function that, when called, creates 'foo' on > > globals(). This is not exactly what I need. > > I possibly messed up a couple things in the arguments, flags etc - I > very seldom use compile() and function(). The point was that it didn't > require any extra step. In the argument list of function type, the code object in first place is expected to be created directly (no exec - eval) with the python type 'code' (either found as types.CodeType or new.code). In [24]: types.CodeType? Type: type Base Class: String Form: Namespace: Interactive Docstring: code(argcount, nlocals, stacksize, flags, codestring, constants, names, varnames, filename, name, firstlineno, lnotab[, freevars[, cellvars]]) Create a code object. Not for the faint of heart. ^^^ Even if it looks more "object oriented", I'm not sure it's actually the good solution for the original problem. I think these interface are not a replacement for the quick eval-exec idiom but more intended to make massive code generation programs object oriented and closer to python internals. AFAIK, the only use case I see code generation (eval - exec, playing with code objects) as legitime in python is in programs that actually do code generation, that is, parse and compile code from textual inputs (application buillders). If code generation is not the best, and I fail to see any performance issue that could explain such a choice, except a misunderstanding of what "compilation" means in python, just don't use it, use closures or callable instances, there are many way to achieve this. -- _ Maric Michaud -- http://mail.python.org/mailman/listinfo/python-list
Re: how to send a "Multiline" mail with smtplib?
On Jun 19, 6:12 pm, Lie <[EMAIL PROTECTED]> wrote:
> On Jun 19, 4:02 pm, Justin Ezequiel <[EMAIL PROTECTED]>
> wrote:
>
> > perhaps change html
>
> > body=MIMEText('hello,\r\n
> > ok',_subtype='html',_charset='windows-1255')
>
> > to plain
>
> > body=MIMEText('hello,\r\n
> > ok',_subtype='plain',_charset='windows-1255')
>
> If that was the case, and you needed a line break in html-mode, use
> or tags.
Thanks all,
and yes, if I use "plain" or use HTML tag "", it worked:
(1) HTML:
I use tag "" and " ", and when I reply that mail, I will
see "" tag in mail content, it is not a good option.
thanks,
Evan
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[2to3] Bug converting import
Hi
Given the following two files in the same directory
Master.py:
--
#!/usr/bin/python
import Slave
Slave.main()
and
Slave.py:
-
def main() :
print "Hello World"
Invoking Master.py under python-2.5.2
works just fine.
2to3 converts these to
Master.py:
--
from . import Slave
Slave.main()
I have added the first line
#!/usr/local/bin/python3.0
manually
Slave.py:
-
def main() :
print("Hello World")
Now, when I invoke Master.py I get
Traceback (most recent call last):
File "Master.py", line 2, in
from . import Slave
ValueError: Attempted relative import in non-package
thanks for looking into it,
Helmut Jarausch
Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany
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Re: pyTTS says, '"SAPI" not supported'
weheh wrote: I'm running Python 2.3 and calling pyTTS. I've had it working forever. Today, I ran out of disk space. After deleting some of my personal files, for no apparent reason, pyTTS no longer runs. For the statement tts = pyTTS.Create() I get the error message: ValueError: "SAPI" not supported Can anybody help me? What's going on? (Hint: you'd have helped if you'd provided the whole traceback). Well, going by pyTTS v3.0 for Python 2.5, that error comes from the __init__.py of the pyTTS package when either you've specified a speech package other than "SAPI" (the default) or the sapi module couldn't be imported. My conclusion would be that you've accidentally removed some part of the sapi package. What happens if you open the interpreter (possibly with -v for more info) from within the pyTTS folder and and do "import sapi"? C:\Python25\Lib\site-packages\pyTTS>python -v -c "import sapi" TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: binary number format ? format character %b or similar.
Mensanator wrote: On Jun 22, 4:07�pm, Ken Starks <[EMAIL PROTECTED]> wrote: weheh wrote: I don't know if you found this example: http://www.daniweb.com/code/snippet285.html Thanks for that. The offerings are very similar to the algorithms I wrote myself. It wasn't the solution I was after,really; that's easy. It was whether anything had found its way into the standard library. Isn't that coming in Python 3.0? Thanks for the tip! following which, I found information at: http://docs.python.org/dev/3.0/library/string.html#formatstrings You could also use gmpy, which has a lot of other bit-functionality in addition to displaying them. Yes, that'll be useful. Thanks again. -- http://mail.python.org/mailman/listinfo/python-list
Re: inheritance question...
Preamble: when posting a brand new question, you'd better not replying to an existing completely unrelated message. In most viewers, this will cause your message to appear in the thread for the original question and far less people will see it. So better create a brand new thread. On Fri, 20 Jun 2008 23:19:37 +0200, Hamish McKenzie <[EMAIL PROTECTED]> wrote: I have this class: class Vector(object): TOL = 1e-5 def __eq__( self, other, tolerance=TOL ): print tolerance shortened for clarity obviously. so I want to subclass this class like so: class BigVector(Vector) TOL = 100 for example if I was working with large vectors which I knew would never be very close hence the large tolerance. this doesn't work however - the TOL class variable, while overridden in BigVector, is still using the Vector.TOL variable in the __eq__ method. which kinda makes sense to a certain degree, but how do I get the behaviour where doing: BigVector().__eq__( otherVec ) prints 100 instead of 1e-5? does this question make sense? not sure how clearly I'm phrasing my question... any of you guys python experts? There's just no way. The default values for function/method arguments are evaluated when the function definition is interpreted. When the __eq__ method is defined, TOL is 1e-5, so that will be the value used in the method, whatever you may do afterwards. I *could* do this, but its ugly: class Vector(object): TOL = 1e-5 def __eq__( self, other, tolerance=None ): if tolerance is None: tolerance = self.TOL print tolerance Well, ugliness is in the eye of the beholder... ;-) Even if you find it ugly, that's the Python way to do it. HTH -- python -c "print ''.join([chr(154 - ord(c)) for c in 'U(17zX(%,5.zmz5(17l8(%,5.Z*(93-965$l7+-'])" -- http://mail.python.org/mailman/listinfo/python-list
Re: how to export functions by name for ctype
rych <[EMAIL PROTECTED]> wrote:
> I'm on Windows with VS2005 testing ctypes on a very simple dll
> I create a test.dll project which exports a function fntest(). I don't
> touch anything in the autogenerated source and build it. I can load
> the dll but can't access the function by its name fntest. Only by
> ordinal number or calling getattr with "?fntest@@YAHXZ". How do I
> export functions by name? It's probably rather a VS2005 question, but
> I'm a bit disappointed ctypes doesn't work with a default export
> convention.
I guess you've compiled your DLL with C++ and the above is a C++
mangled name.
Either compile it with C, or export the names in an extern "C" { }
block.
--
Nick Craig-Wood <[EMAIL PROTECTED]> -- http://www.craig-wood.com/nick
--
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Re: Learning Python in a group
I guess it's time to choose what a project your group will work at. Personally, I'm working at the project relating to text analysis, but it's rather specific because I use Russian texts. So, maybe we should to choose more 'international' implementation. -Ed -- http://mail.python.org/mailman/listinfo/python-list
Re: listcomprehension, add elements?
John Machin wrote: Instead of sum(a + b for a, b in zip(foo, bar)) why not use sum(foo) + sum(bar) ? or even sum(foo+bar) as may apply. Cheers, BB -- http://mail.python.org/mailman/listinfo/python-list
Re: An idiom for code generation with exec
Maric Michaud a écrit : Le Monday 23 June 2008 09:22:29 Bruno Desthuilliers, vous avez écrit : With some help from the guys at IRC I came to realize your way doesn't do the same. It creates a function that, when called, creates 'foo' on globals(). This is not exactly what I need. I possibly messed up a couple things in the arguments, flags etc - I very seldom use compile() and function(). The point was that it didn't require any extra step. In the argument list of function type, the code object in first place is expected to be created directly (no exec - eval) with the python type 'code' Which is what compile returns. But indeed, re-reading compile's doc more carefully, I'm afraid that the code object it returns may not be usable the way I thought. My bad. sorry (snip) -- http://mail.python.org/mailman/listinfo/python-list
Sending arrays of a structure as an argument via ctypes
Hi there.
I am reprogrammed my astar* path finding algorithm in C to make it quicker.
I am now trying to make python use this C extension, however I keep
getting "Segmentation fault".
Some of the C stuff:
typedef struct Point {
int x;
int y;
} Point;
typedef struct Node {
Point pos;
int cost;
int g;
int obstacle;
struct Node* parent;
} Node;
void astar(Node map[], Point from, Point to) {
(...)
}
main () {
(...)
Node map[maptotal];
(...)
astar(map, createPoint(0,0), createPoint(50,50));
}
Now I am by no means a C programmer, this is basicly the first "bigger
than hello-world" program, but I have got it working in C. What I am
now trying to do is to make the map using python, and send it to my
astar C function using ctypes.
Basicly I've rewritten my structures in python:
class Point(Structure):
_fields_ = [("x", c_int), ("y", c_int)]
def __repr__(self): return "" % (self.x, self.y)
class Node(Structure):
def __repr__(self):
return "" % (self.pos.x, self.pos.y)
Node._fields_ = [('pos', Point), ('cost', c_int), ('g', c_int),
('obstacle', c_int), ('parent',POINTER(Node))]
And after that, this is how I am trying to call it:
self.astar = astarlib.astar
self.astar.argtypes = [Node * self.maptotal, Point, Point]
self.astar.restype = None
self.nodes = (Node * self.maptotal)()
for i in range(self.mapwidth):
for i2 in range(self.mapheight):
self.nodes[i2 * self.mapwidth + i] = Node(Point(i, i2))
self.astar(self.nodes, Point(5,6), Point(6,6))
When I call the self.astar function it segfaults. And what I think
I've done wrong is the self.nodes part, but I can't find any good
documentation on it.
Any help? :p
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Re: flock seems very unsafe, python fcntl bug?
Jens Henrik Leonhard Jensen <[EMAIL PROTECTED]> wrote:
> Your problem is that open(...,'w') is not locked.
>
> Use something like:
> lockf = open('aaa', 'a')
> fnctl.flock(lockf,fnctl.LOCK_EX)
> file = open('aaa', 'w')
> file.write('asdf')
> file.close()
> lockf.close()
I've not seen that trick before - it is a good one. It wouldn't work
for mandatory locking though...
The basic problem is getting the file open for read/write without
destroying the contents before you have the lock. None of the
arguments to open() do the right thing
Using an append open is a nice solution to that, apart from the fact
that you can only append data onto the file hence the other open.
Here are some other possible solutions and a test harness! The low
level open is probably the most unixy solution. If you could specify
os.O_RDWR|os.O_CREAT to the python open() function then it would be
the best, but none of the documented open strings do that
$ strace python -c 'open("aaa", "r+")' 2>&1 | grep 'open("aaa"'
open("aaa", O_RDWR|O_LARGEFILE) = 3
$ strace python -c 'open("aaa", "w+")' 2>&1 | grep 'open("aaa"'
open("aaa", O_RDWR|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = 3
$ strace python -c 'open("aaa", "wr+")' 2>&1 | grep 'open("aaa"'
open("aaa", O_RDWR|O_CREAT|O_TRUNC|O_LARGEFILE, 0666) = 3
$ strace python -c 'open("aaa", "a+")' 2>&1 | grep 'open("aaa"'
open("aaa", O_RDWR|O_CREAT|O_APPEND|O_LARGEFILE, 0666) = 3
"""
Testing writing stuff to a file with locking
"""
import os
import sys
import fcntl
def method_0(data):
"""
Use an normal open
This doesn't work because it truncates the data before it has the
lock
"""
fd = open('aaa', 'w')
fcntl.flock(fd,fcntl.LOCK_EX)
fd.write(data)
fd.close()
def method_1(data):
"""
Use an additional append open to lock
"""
lock_fd = open('aaa', 'a')
fcntl.flock(lock_fd,fcntl.LOCK_EX)
fd = open('aaa', 'w')
fd.write(data)
fd.close()
lock_fd.close()
def method_2(data):
"""
Use a low level open
"""
fd = os.fdopen(os.open('aaa', os.O_CREAT|os.O_RDWR), "r+")
fcntl.flock(fd, fcntl.LOCK_EX)
fd.truncate()
fd.write(data)
fd.close()
def method_3(data):
"""
Using high level functions only
Possibly racy on open when file doesn't exist
"""
if not os.path.exists('aaa'):
fd = open('aaa', 'w+')
else:
fd = open('aaa', 'r+')
fcntl.flock(fd,fcntl.LOCK_EX)
fd.truncate()
fd.write(data)
fd.close()
def check():
fd = open('aaa', 'r')
fcntl.flock(fd,fcntl.LOCK_EX)
data = fd.read()
fd.close()
if data not in ("sausage", "potato"):
raise AssertionError("Wrong data %r" % data)
if os.path.exists("aaa"):
os.unlink("aaa")
if len(sys.argv) < 2:
print "Syntax: %s " % sys.argv[0]
raise SystemExit(1)
method = globals()["method_"+sys.argv[1]]
if os.fork():
while 1:
method("sausage")
check()
else:
while 1:
method("potato")
check()
--
Nick Craig-Wood <[EMAIL PROTECTED]> -- http://www.craig-wood.com/nick
--
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Re: listcomprehension, add elements?
Le Monday 23 June 2008 11:39:44 Boris Borcic, vous avez écrit : > John Machin wrote: > > Instead of sum(a + b for a, b in zip(foo, bar)) > > why not use sum(foo) + sum(bar) > > ? > > or even sum(foo+bar) as may apply. Because some are better than others : sum(foo+bar) is the worst, it create a superfluous list of len(foo) + len(bar) elements. sum(a + b for a, b in zip(foo, bar)), creates a list of max(len(foo), len(bar)) elements, in most cases it is the same as the former. This could have been corrected using itertools.izip. So the winner is sum(foo) + sum(bar), which does not create anything not needed. But if the question is "how to build the list and sum up all elements in a efficient way for sequences of arbitrary length ", it's important to make it in the same iteration, so the most effective/clear, and so "pythonic", way to do this is (untested) : res, sum = [], 0 for s in (a + b for a, b in zip(itertools.izip(xrange(1, 51), xrange(50, 0, -1: sum += s res.append(sum) Which is "pythonic" in first place is to provide sequences of datas as iterators when they can grow in size. -- _ Maric Michaud -- http://mail.python.org/mailman/listinfo/python-list
Re: listcomprehension, add elements?
On Jun 23, 9:16 pm, Maric Michaud <[EMAIL PROTECTED]> wrote: > Le Monday 23 June 2008 11:39:44 Boris Borcic, vous avez écrit : > > > John Machin wrote: > > > Instead of sum(a + b for a, b in zip(foo, bar)) > > > why not use sum(foo) + sum(bar) > > > ? > > > or even sum(foo+bar) as may apply. > > Because some are better than others : > > sum(foo+bar) is the worst, it create a superfluous list of len(foo) + len(bar) > elements. > > sum(a + b for a, b in zip(foo, bar)), creates a list of max(len(foo), > len(bar)) elements, in most cases it is the same as the former. > > This could have been corrected using itertools.izip. > > So the winner is sum(foo) + sum(bar), which does not create anything not > needed. > > But if the question is "how to build the list and sum up all elements in a > efficient way for sequences of arbitrary length ", it's important to make it > in the same iteration, so the most effective/clear, and so "pythonic", way to > do this is (untested) : > > res, sum = [], 0 Please use tot or total, not sum! > for s in (a + b for a, b > in zip(itertools.izip(xrange(1, 51), Perhaps you should not have left zip() in there ... > xrange(50, 0, -1: > sum += s > res.append(sum) Do you mean res.append(s) ? I would have thought that it would have been better to create the list and then sum it: res = [a + b for a, b in itertools.izip(foo_iter, bar_iter)] total = sum(res) Cheers, John -- http://mail.python.org/mailman/listinfo/python-list
xml to mysql (vice versa ) too
Hi, I need to write a python script to store data which is in XML to MYSQL and even vice versa what should be the approach? i am able to establish a connection,create tables and insert data . but how to read an xml file and store in MYSQL my XML structure is like . ... can somebody please help me..i am really confused!! thanks in advance :) -- http://mail.python.org/mailman/listinfo/python-list
Re: Learning Python in a group
hi guys. I would be glad to join your group because i want to learn deeper python but i am frustrated of isolation too. It would provide stimulation and encourage to study and will boost our desire to learn. So count me in! -- http://mail.python.org/mailman/listinfo/python-list
Re: how to export functions by name for ctype
On 23 Jun, 10:32, Nick Craig-Wood <[EMAIL PROTECTED]> wrote:
> rych <[EMAIL PROTECTED]> wrote:
> > I'm on Windows with VS2005 testing ctypes on a very simple dll
> > I create a test.dll project which exports a function fntest(). I don't
> > touch anything in the autogenerated source and build it. I can load
> > the dll but can't access the function by its name fntest. Only by
> > ordinal number or calling getattr with "?fntest@@YAHXZ". How do I
> > export functions by name? It's probably rather a VS2005 question, but
> > I'm a bit disappointed ctypes doesn't work with a default export
> > convention.
>
> I guess you've compiled your DLL with C++ and the above is a C++
> mangled name.
>
> Either compile it with C, or export the names in an extern "C" { }
> block.
>
> --
> Nick Craig-Wood <[EMAIL PROTECTED]> --http://www.craig-wood.com/nick
That fixed it, thank you.
--
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Re: listcomprehension, add elements?
Le Monday 23 June 2008 13:51:34 John Machin, vous avez écrit : > On Jun 23, 9:16 pm, Maric Michaud <[EMAIL PROTECTED]> wrote: > > Le Monday 23 June 2008 11:39:44 Boris Borcic, vous avez écrit : > > > John Machin wrote: > > > > Instead of sum(a + b for a, b in zip(foo, bar)) > > > > why not use sum(foo) + sum(bar) > > > > ? > > > > > > or even sum(foo+bar) as may apply. > > > > Because some are better than others : > > > > sum(foo+bar) is the worst, it create a superfluous list of len(foo) + > > len(bar) elements. > > > > sum(a + b for a, b in zip(foo, bar)), creates a list of max(len(foo), > > len(bar)) elements, in most cases it is the same as the former. > > > > This could have been corrected using itertools.izip. > > > > So the winner is sum(foo) + sum(bar), which does not create anything not > > needed. > > > > But if the question is "how to build the list and sum up all elements in > > a efficient way for sequences of arbitrary length ", it's important to > > make it in the same iteration, so the most effective/clear, and so > > "pythonic", way to do this is (untested) : > > > > res, sum = [], 0 > > Please use tot or total, not sum! > > > for s in (a + b for a, b > > in zip(itertools.izip(xrange(1, 51), > > Perhaps you should not have left zip() in there ... > > > xrange(50, 0, > > -1: sum += s > > res.append(sum) > > Do you mean res.append(s) ? > Yes, my mistakes, all remarks are indeed true. Sorry for this out of thoughts sketch. > I would have thought that it would have been better to create the list > and then sum it: > res = [a + b for a, b in itertools.izip(foo_iter, bar_iter)] > total = sum(res) > This is good enough if you accept the overhead of iterating twice over the whole list. But this may be a bit more complicated, for efficiency, there is a better way of allocating memory than successively appending new item. I guess this should be a far better solution, but you'll need to know the required number of iteration (the size of your iterators, the xrange in this sample) : res, total = [None] * n, 0 for i, s in enumerate(a + b for a, b in izip(xrange(1, n+1), xrange(n, 0, -1)): total += s res[i] =s -- _ Maric Michaud -- http://mail.python.org/mailman/listinfo/python-list
Re: py2exe, PyQT, QtWebKit and jpeg problem
On Jun 21, 12:21 am, David Boddie <[EMAIL PROTECTED]> wrote: > On Friday 20 June 2008 17:24, Phil Thompson wrote: > > > On Fri, 20 Jun 2008 08:04:57 -0700 (PDT),Carbonimax > > <[EMAIL PROTECTED]> wrote: > >> I have a problem with py2exe and QtWebKit : > >> I make a program with a QtWebKit view. > >> If I launch the .py directly, all images (jpg, png) are displayed but > >> if I compile it with py2exe I have only png images. No jpg ! > >> No error message, nothing. > > >> Have you a solution ? Thank you. > > > At a guess, the JPEG support is implemented as a Qt plugin which you are > > not including. > > Yes, that would appear to the be most obvious cause. See here for another > report about this: > > http://lists.trolltech.com/qt4-preview-feedback/2008-03/msg00064.html > > David How can I do that ? If I copy the dll in the dist directory, and I use QLibrary() and load(), it does work in the .py but it doesn't in .exe made with py2exe my code : dll = QLibrary(path_to_dll) res = dll.load() res == true in the .py res == false in the .exe :-/ -- http://mail.python.org/mailman/listinfo/python-list
Re: py2exe, PyQT, QtWebKit and jpeg problem
On Jun 21, 12:21 am, David Boddie <[EMAIL PROTECTED]> wrote: > On Friday 20 June 2008 17:24, Phil Thompson wrote: > > > On Fri, 20 Jun 2008 08:04:57 -0700 (PDT), Carbonimax > > <[EMAIL PROTECTED]> wrote: > >> I have a problem with py2exe and QtWebKit : > >> I make a program with a QtWebKit view. > >> If I launch the .py directly, all images (jpg, png) are displayed but > >> if I compile it with py2exe I have only png images. No jpg ! > >> No error message, nothing. > > >> Have you a solution ? Thank you. > > > At a guess, the JPEG support is implemented as a Qt plugin which you are > > not including. > > Yes, that would appear to the be most obvious cause. See here for another > report about this: > > http://lists.trolltech.com/qt4-preview-feedback/2008-03/msg00064.html > > David How can I do that ? If I copy the dll in the dist directory, and I use QPluginLoader() and load(), it does work in the .py but it doesn't in .exe made with py2exe my code : dll = QPluginLoader(path_to_dll) res = dll.load() res == true in the .py res == false in the .exe :-/ -- http://mail.python.org/mailman/listinfo/python-list
Re: -1/2
On Jun 23, 1:32 am, "Serve Lau" <[EMAIL PROTECTED]> wrote: > What is the expected result of -1/2 in python? Operator precedence: Both python 2 and 3 follows the same rule for operator precedence, see: http://www.ibiblio.org/g2swap/byteofpython/read/operator-precedence.html . In -1/2, unary negative takes precedence, then division, i.e. it's interpreted as ((-1) / 2). Py3k and Python 2 differences: Before Python 3, integer division is always rounds to minus infinity. In Python 3, integer division yields floats. To use integer division in Python 3, you use // operator. Simple answer: Python 2: (-1)/2 = round(-0.5) = -1 Py3k: (-1)/2 = float(-1) / float(2) = -0.5 -- http://mail.python.org/mailman/listinfo/python-list
Distutils and unit test files
Hi, I am using Distutils to build and distribute some packages. I do write unit tests, but I am confused as to where to put them and how to run them prior to the package being installed (The modules being tested would not be in my sys.path). I would rather not put the test cases in the same files as the modules being tested, I want keep them in a sub directory of the module, or in a separate "test" directory. What are some of the strategies for dealing with this? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Sending arrays of a structure as an argument via ctypes
Knut Saua Mathiesen: > Any help? :p My faster suggestion is to try ShedSkin, it may help you produce a fast enough extension. If ShedSkin doesn't compile it, its author (Mark) may be quite willing to help. bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
Re: Distutils and unit test files
Le Monday 23 June 2008 15:38:40 Joe Riopel, vous avez écrit : > Hi, > > I am using Distutils to build and distribute some packages. I do write > unit tests, but I am confused as to where to put them and how to run > them prior to the package being installed (The modules being tested > would not be in my sys.path). I would rather not put the test cases in > the same files as the modules being tested, I want keep them in a sub > directory of the module, or in a separate "test" directory. > > What are some of the strategies for dealing with this? > Yes a checksuite should be kept separate from the 'real' code. You can run it locally by setting the PYTHONPATH environment variable : PYTHONPATH=/path/to/your/modules python checksuite.py -- Cédric Lucantis -- http://mail.python.org/mailman/listinfo/python-list
Re: Distutils and unit test files
On Mon, Jun 23, 2008 at 9:59 AM, Cédric Lucantis <[EMAIL PROTECTED]> wrote: > Yes a checksuite should be kept separate from the 'real' code. You can run it > locally by setting the PYTHONPATH environment variable : > > PYTHONPATH=/path/to/your/modules python checksuite.py So I could also just append the path to sys.path in checksuite.py file and use checksuite to run all my unit tests? Thanks -- http://mail.python.org/mailman/listinfo/python-list
[ANN] Virtual Worlds Open Grid Protocols testing library in Python (pyogp)
A new open source project has been started by Linden Lab, makers of the Second Life™ virtual worlds, and the Second Life Architecture Working Group (AWG) to test LL's proposed virtual worlds Open Grid Protocols (OGP) that will allow any virtual world to support multi-world login, between-world teleport and other transportation mechanisms, as well as asset/property and currency sharing between worlds. https://wiki.secondlife.com/w/index.php?title=AWG_Test_Harness The code is released to all comers in Python under an Apache v2 agreement, although contributions require the signing of Linden Lab's developer contribution agreement (giving LL equal copyrights to the original contributer--a boilerplate LL corporate requirement that likely is redundant given the nature of Apache v2). svn: http://svn.secondlife.com/trac/linden/browser/projects/2008/pyogp. Second Life contribution agreement: http://secondlifegrid.net.s3.amazonaws.com/docs/SLVcontribution_agmt.pdf irc: irc://irc.freenode.net/#pyogp AWG homepage: https://wiki.secondlife.com/wiki/AWG AWG discussion group homepage: https://wiki.secondlife.com/wiki/Category:AW_Groupies AWG-related pages, irc channels and forums: https://wiki.secondlife.com/wiki/Category:AW_Groupies#External_Resources The near-term AWG goal is to create a set of open standard protocols that: 1) Enable third parties to run servers that connect to the Second Life Grid platform 2) Scale the Second Life Grid architecture to support the industry-projected situation in the next 10 years, where virtual worlds will comprise at least 60 million regions, 2 billion users and in-world concurrency of 50-100 million residents. https://wiki.secondlife.com/wiki/SLGOGP_Draft_1 https://wiki.secondlife.com/wiki/SLGOGP_Teleport_Strawman The long-term goal is to design a set of protocols and standards that will enable almost any virtual world of any kind to "plug into" this system to varying degrees, from support for a "universal avatar" to full support for all Second Life features and/or the ability to inform universal 3D viewers what features are supported (or not) in any given virtual world. More info on pyogp and the AWG can be obtained on the website or via irc. Lawson English AKA Saijana Kuhn, AWGroupies admin -- http://mail.python.org/mailman/listinfo/python-list
Re: Distutils and unit test files
> On Mon, Jun 23, 2008 at 9:59 AM, Cédric Lucantis <[EMAIL PROTECTED]> wrote: > > Yes a checksuite should be kept separate from the 'real' code. You can > > run it locally by setting the PYTHONPATH environment variable : > > > > PYTHONPATH=/path/to/your/modules python checksuite.py > > So I could also just append the path to sys.path in checksuite.py file > and use checksuite to run all my unit tests? > (woops, sorry for the private post :) Yes this is equivalent, as sys.path is initialized from PYTHONPATH at startup. But I'd suggest to insert your path at the beginning of sys.path rather than appending it, so you'll be sure to use the local modules even if they are already installed (I use 1 instead of 0 because sys.path[0] has a special meaning) : sys.path.insert(1, '/path/...') But I prefer to use PYTHONPATH, so the user keeps control on it (and can eventually check installed modules too). If you don't want to have to set it at each run, you can still write a simple wrapper script for your own needs. -- Cédric Lucantis -- http://mail.python.org/mailman/listinfo/python-list
PyOpenGL New Installation
I have just installed PyOpenGL and get a series of warning messages: Best match: PyOpenGL 3.0.0b3 Downloading http://downloads.sourceforge.net/pyopengl/PyOpenGL-3.0.0b3.zip?modtime=1213363873&big_mirror=0 Processing PyOpenGL-3.0.0b3.zip Running PyOpenGL-3.0.0b3\setup.py -q bdist_egg --dist-dir c:\docume~1\cjw\locals~1\temp\easy_install-hjyff7\PyOpenGL-3.0.0b3\egg-dist-tmp-iqd53p warning: no previously-included files matching '*.odt' found anywhere in distribution warning: no previously-included files matching '*.odp' found anywhere in distribution warning: no previously-included files matching '.cvsignore' found anywhere in distribution warning: no previously-included files matching '*.diff' found anywhere in distribution warning: no previously-included files found matching 'src\*.h' warning: no previously-included files found matching 'src\*.xml' warning: no previously-included files found matching 'src\*.zip' Adding pyopengl 3.0.0b3 to easy-install.pth file Installed c:\python25\lib\site-packages\pyopengl-3.0.0b3-py2.5.egg Processing dependencies for PyOpenGL Finished processing dependencies for PyOpenGL Could someone please advise the significance of these messages? Colin W. -- http://mail.python.org/mailman/listinfo/python-list
String question
I want to split a sentence and assign each word to a variable. In Ruby I can do it as: v1,v2,v3,v4,v5 = str1.split Which will be the Python equivalent ? Thanks. Andrew. -- http://mail.python.org/mailman/listinfo/python-list
Re: String question
Andreu wrote: I want to split a sentence and assign each word to a variable. In Ruby I can do it as: v1,v2,v3,v4,v5 = str1.split Which will be the Python equivalent ? Thanks. That would be: str1 = "The quick brown fox jumps" v1, v2, v3, v4, v5 = str1.split () TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: String question
Wow...about ten seconds to get a kind response Thanks Tim. Andrew. Tim Golden wrote: Andreu wrote: I want to split a sentence and assign each word to a variable. In Ruby I can do it as: v1,v2,v3,v4,v5 = str1.split Which will be the Python equivalent ? Thanks. That would be: str1 = "The quick brown fox jumps" v1, v2, v3, v4, v5 = str1.split () TJG -- http://mail.python.org/mailman/listinfo/python-list
learning unit testing in python
Hi all. I'd like learn some basic unit testing with python. I red some articles about different testing framework like unittest or nose, but I'm a bit confused: what is the best choice? I'm not a professional developer (I'm a SEO) but I belive that unit testing is a good and pragmatic way to produce working software, so I'd like to find something really simple ad straightforward because I don't have to manage big programming projects. Thanks in advance, Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: -1/2
Lie <[EMAIL PROTECTED]> wrote: > On Jun 23, 1:32 am, "Serve Lau" <[EMAIL PROTECTED]> wrote: >> What is the expected result of -1/2 in python? > > > Operator precedence: > Both python 2 and 3 follows the same rule for operator precedence, > see: > http://www.ibiblio.org/g2swap/byteofpython/read/operator-precedence.htm > l . In -1/2, unary negative takes precedence, then division, i.e. it's > interpreted as ((-1) / 2). > > Py3k and Python 2 differences: > Before Python 3, integer division is always rounds to minus infinity. > In Python 3, integer division yields floats. To use integer division > in Python 3, you use // operator. > > Simple answer: > Python 2: (-1)/2 = round(-0.5) = -1 > Py3k: (-1)/2 = float(-1) / float(2) = -0.5 > Python 2.x gives -1 or -0.5 depending on the division mode in operation and for -1 may also generate a deprecation warning: C:\>python25\python -Qnew -c "print -1/2" -0.5 C:\>python25\python -Qwarn -c "print -1/2" -c:1: DeprecationWarning: classic int division -1 -- Duncan Booth http://kupuguy.blogspot.com -- http://mail.python.org/mailman/listinfo/python-list
Re: String question
On Jun 23, 4:45 pm, Andreu <[EMAIL PROTECTED]> wrote: > I want to split a sentence and assign each word to a variable. > In Ruby I can do it as: > > v1,v2,v3,v4,v5 = str1.split > > Which will be the Python equivalent ? Thanks. > > Andrew. Well a straight copy would be... >>> example = "Hello, how are you" >>> v1, v2, v3, v4 = example.split() >>> print v1, v2, v3, v4 Hello, how are you >>> print v1 Hello, However I would make a list of it. >>> v_list = example.split() >>> print v_list ['Hello,', 'how', 'are', 'you'] >>> for word in v_list: print word Hello, how are you That seems to me to be the more pythonic way to do it, since it is dynamic. -- http://mail.python.org/mailman/listinfo/python-list
Re: Regular expression problem
On Jun 22, 10:13 pm, abranches <[EMAIL PROTECTED]> wrote:
> Hello everyone.
>
> I'm having a problem when extracting data from HTML with regular
> expressions.
> This is the source code:
>
> You are ready in the next style="display: inline;">12 span>M 48S
>
> And I need to get the remaining time. Until here, isn't a problem
> getting it, but if the remaining time is less than 60 seconds then the
> source becomes something like this:
>
> You are ready in the next style="display: inline;">36 span>S
>
> I'm using this regular expression, but the minutes are always None...
> You are ready in the next.*?(?:>(\d+)M)?.*?(?:>(\d+) span>S)
>
> If I remove the ? from the first group, then it will work, but if
> there are only seconds it won't work.
> I could resolve this problem in a couple of python lines, but I really
> would like to solve it with regular expressions.
>
Your regex is working like this:
1. Match 'You are ready in the next'.
2. Match an increasing number of characters, starting with none
('.*?').
3. Try to match a pattern ('(?:>...)?') from where the previous step
left off. This doesn't match, but it's optional anyway, so continue to
the next step. (No characters consumed.)
4. Match an increasing number of characters, starting from none
('.*?'). It's this step that consumes the minutes.
It then goes on to match the seconds, and the minutes are always None
as you've found.
I've come up with this regex:
You are ready in the next(?:.*?>(\d+)M)?(?:.*?>(\d+)S)
Hope that helps.
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Terminating processes on Windows (handles and IDs)
Hi all, I've always wondered why os.kill isn't supported on Windows. I found a discussion somewhere from 2006 about this so it seems others have wanted it, but still nothing. So I have a half-baked solution involving calling "taskkill" on Windows Vista or "tskill" on Windows XP via the shell. I feel there has to be a better way. I'm also fairly confused about when I've got an ID and when I've got a handle. The subprocess module gives me IDs which the above programs accept, but other ways of spawning processes give me process handles (while referring to them as process IDs in the docs...) and I don't know how to kill a process with these. Besides, I've found an amazingly useful PyGTK method, gobject.child_watch_add, which does exactly what I want on UNIX but wants process handles on Windows. So I can't use it in conjunction with subprocess there, and if I use some other way of spawning processes I can't clean them up later. Is there any way to convert one of these numbers to the other? Or to get a process handle out of subprocess? (There must be one down there somewhere, surely?) Sorry for rambling a bit, am confused. Regards, Geoff Bache -- http://mail.python.org/mailman/listinfo/python-list
Passing arguments to subclasses
May I ask a simple newbie question, which I presume is true, but for which I can't readily find confirmation: Let's say I have a parent class with an __init__ method explicitly defined: class ParentClass(object): def __init__(self, keyword1, keyword2): etc and I subclass this: class ChildClass(ParentClass): # No __init__ method explicitly defined Now I presume that I can instantiate a child object as: child = ChildClass(arg1, arg2) and arg1, arg2 will be passed through to the 'constructor' of the antecedent ParentClass (there being no overrriding __init__ method defined for ChildClass) and mapping to keyword1, keyword2 etc. Have I understood this correctly? -- http://mail.python.org/mailman/listinfo/python-list
Find class attributes creation order
Let's see these simple classes:
class base_foo()
pass
class foo(base_foo):
a=1
b={}
c="zz"
I would like to find class foo attributes creation order.
Using __metaclass__ is not of help because special method __new__
receive attrs as a dictionary and so the order isn't preserved. Any
other idea?
Thanks for your time.
Ciao.
Marco.
--
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Re: Passing arguments to subclasses
John Dann a écrit :
May I ask a simple newbie question, which I presume is true, but for
which I can't readily find confirmation:
Let's say I have a parent class with an __init__ method explicitly
defined:
class ParentClass(object):
def __init__(self, keyword1, keyword2):
etc
and I subclass this:
class ChildClass(ParentClass):
# No __init__ method explicitly defined
Now I presume that I can instantiate a child object as:
child = ChildClass(arg1, arg2)
and arg1, arg2 will be passed through to the 'constructor' of the
antecedent ParentClass (there being no overrriding __init__ method
defined for ChildClass) and mapping to keyword1, keyword2 etc.
Have I understood this correctly?
Yes. But you could have checked by yourself:
[EMAIL PROTECTED]:~$ python
Python 2.5.1 (r251:54863, Mar 7 2008, 03:41:45)
[GCC 4.1.2 (Ubuntu 4.1.2-0ubuntu4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> class Parent(object):
... def __init__(self, kw1, kw2):
... print self, kw1, kw2
... self.kw1, self.kw2 = kw1, kw2
...
>>> class Child(Parent): pass
...
>>> c = Child("arg1", "arg2")
<__main__.Child object at 0xb7ddeccc> arg1 arg2
>>> c.kw1
'arg1'
>>> c.kw2
'arg2'
>>>
HTH
--
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Re: Passing arguments to subclasses
John Dann wrote: May I ask a simple newbie question, which I presume is true, but for which I can't readily find confirmation: Let's say I have a parent class with an __init__ method explicitly defined: class ParentClass(object): def __init__(self, keyword1, keyword2): etc and I subclass this: class ChildClass(ParentClass): # No __init__ method explicitly defined Now I presume that I can instantiate a child object as: child = ChildClass(arg1, arg2) and arg1, arg2 will be passed through to the 'constructor' of the antecedent ParentClass (there being no overrriding __init__ method defined for ChildClass) and mapping to keyword1, keyword2 etc. Have I understood this correctly? Yes, but... The nice things about Python is that you can use the interactive interpreter to test such things in an instant. (And not have to wait for a response from python-list. Like this: >>> class ParentClass(object): ... def __init__(self, keyword1, keyword2): ... print 'ParentClass.__init__ called with', keyword1, keyword2 ... >>> class ChildClass(ParentClass): ... pass ... >>> child = ChildClass(123,456) ParentClass.__init__ called with 123 456 >>> Gary Herron -- http://mail.python.org/mailman/listinfo/python-list
Going from Tkinter to pyQT
I had a guy on this mailing list tell me that pyQT is much better than Tkinter, and after looking into it a bit I think he is right. However, I can't find much on it. I want to know if there are any good books or online tutorials that would be helpful. I doubt there is one, but if there is one on going from Tkinter to pyQT, that would be amazing. Well if any of you guys have any tips or suggestions on any of this I would appreciate it. -- http://mail.python.org/mailman/listinfo/python-list
Re: Find class attributes creation order
Le Monday 23 June 2008 17:53:07 Marcob, vous avez écrit :
> Let's see these simple classes:
>
> class base_foo()
> pass
>
> class foo(base_foo):
> a=1
> b={}
> c="zz"
>
> I would like to find class foo attributes creation order.
> Using __metaclass__ is not of help because special method __new__
> receive attrs as a dictionary and so the order isn't preserved. Any
> other idea?
>
I don't really understand what you want, but __new__ may accept any kind of
attributes, this is your choice. You can use named params or a vararg list
(which will preserve params order).
But in your example you're only using class attributes, so __new__ is not
involved and they are just created once for all in the order you write them:
a, b, c.
--
Cédric Lucantis
--
http://mail.python.org/mailman/listinfo/python-list
Using Python and MS-SQL Server
Hello, I have programmed before, but I am new to using Python. I am currently using the ArcGIS software which uses Python as its scripting language for automating tasks. The current script that I am working on requires pulling in some information from a Microsoft SQL Server. I was wondering if anyone could suggest the best way of doing this? I have looked at the different modules that are specific to SQL server, but none of them seem to be active or up to date. If not, could anyone make any suggestions? Or would it be better to go the ODBC route? I am not talking about large amounts of data, so I am not concerned about performance so ODBC would be fine to use as well. Also, being new to Python, I recently read about dictionaries and was wondering if there was a quick way to dump a table into a dictionary? For example, I have a customer list with a customer ID. It would be great to have the ID as the "key" and the name as the "data" (or even better, have a list as the data element containing all the information about the customer). I am sure that this could be done manually, by looping through each record and adding it to the dictionary -- but I was just wondering if something like this has already been done (I don't need to reinvent the wheel here). Thanks so much, Hugh -- http://mail.python.org/mailman/listinfo/python-list
IDE on the level of Eclipse or DEVc++?
is there an IDE for python of the same quality as Eclipse or DEVC++? I am currently using the editor that coems iwth python and it is all fine but for bigger projects it would be nice to have some way to easier browse the projectfiles for example. -- http://mail.python.org/mailman/listinfo/python-list
Re: Find class attributes creation order
On 23 Giu, 18:08, Cédric Lucantis <[EMAIL PROTECTED]> wrote:
> Le Monday 23 June 2008 17:53:07 Marcob, vous avez écrit :
>
> > Let's see these simple classes:
>
> > class base_foo()
> > pass
>
> > class foo(base_foo):
> > a=1
> > b={}
> > c="zz"
>
> > I would like to find class foo attributes creation order.
> > Using __metaclass__ is not of help because special method __new__
> > receive attrs as a dictionary and so the order isn't preserved. Any
> > other idea?
>
> I don't really understand what you want, but __new__ may accept any kind of
> attributes, this is your choice. You can use named params or a vararg list
> (which will preserve params order).
Ok, I'll try to make myself clearer.
> But in your example you're only using class attributes, so __new__ is not
> involved and they are just created once for all in the order you write them:
> a, b, c.
Yes, this is true but if another piece of code define class foo (and
consequently a, b, c) and I would like to find how many class
attributes are defined and their order, how can I do this?
It's easy to find how many attributes there are: using __dict__ or
dir() or whatever.
But to find their order isn't so easy.
Besides that I can do whatever I want with class base_foo but I can't
touch class foo.
Ciao.
Marco.
--
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Re: Find class attributes creation order
On Jun 23, 5:53 pm, Marcob <[EMAIL PROTECTED]> wrote:
> Let's see these simple classes:
>
> class base_foo()
> pass
>
> class foo(base_foo):
> a=1
> b={}
> c="zz"
>
> I would like to find class foo attributes creation order.
> Using __metaclass__ is not of help because special method __new__
> receive attrs as a dictionary and so the order isn't preserved. Any
> other idea?
You need to wait for Python 3.0 metaclasses:
http://stacktrace.it/articoli/2008/01/metaclassi-python-3000/ which
you should know already (ciao Marco! ;-)
Michele Simionato
--
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Re: IDE on the level of Eclipse or DEVc++?
2008/6/23 cirfu <[EMAIL PROTECTED]>: > is there an IDE for python of the same quality as Eclipse or DEVC++? > > I am currently using the editor that coems iwth python and it is all > fine but for bigger projects it would be nice to have some way to > easier browse the projectfiles for example. Actually, there is a great plugin for Eclipse, called PyDev. You should check it out. :) > -- > http://mail.python.org/mailman/listinfo/python-list > -- Wbr, Andrii Mishkovskyi. He's got a heart of a little child, and he keeps it in a jar on his desk. -- http://mail.python.org/mailman/listinfo/python-list
Re: IDE on the level of Eclipse or DEVc++?
"cirfu" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > is there an IDE for python of the same quality as Eclipse or DEVC++? > > I am currently using the editor that coems iwth python and it is all > fine but for bigger projects it would be nice to have some way to > easier browse the projectfiles for example. why not eclipse itself, using the pydev plugin? --Tim -- http://mail.python.org/mailman/listinfo/python-list
Question: How do I format printing in python
Hi All, How do I format printed data in python? I could not find this in the Python Reference Manual: http://docs.python.org/ref/print.html Nor could I find it in Matloff's great tutorial: http://heather.cs.ucdavis.edu/~matloff/Python/PythonIntro.pdf For example, how do I turn this: 512 Jun 5 2004 X11r6 22 Jan 17 2005 a2p 22 Jan 17 2005 acctcom 5374 Sep 15 2002 acledit 5664 May 13 2004 aclget 12020 May 13 2004 aclput 115734 Jun 2 2004 adb 46518 Jun 4 2004 admin 66750 Sep 16 2002 ali 1453 Sep 15 2002 alias 28150 Jun 4 2004 alog 15 May 12 2005 alstat into this: 512Jun 5 2004X11r6 22 Jan 17 2005a2p 22 Jan 17 2005acctcom 5374 Sep 15 2002acledit 5664 May 13 2004aclget 12020 May 13 2004aclput 115734 Jun 2 2004adb 46518 Jun 4 2004admin 66750 Sep 16 2002ali 1453 Sep 15 2002alias 28150 Jun 4 2004alog 15 May 12 2005alstat Thank you -- http://mail.python.org/mailman/listinfo/python-list
Re: Passing arguments to subclasses
Thanks for the responses - they're much appreciated. And I understand the slight impatience with questions that could possibly be answered without recourse to a forum - I'm usually in the opposite position of fielding many newbie questions in a forum in a completely different field! But don't be too harsh on this category of questions for a couple of reasons. First, newbies don't necessarily yet have the same easy familiarity with the Python interpreter that's implied. - personally I'd be a little concerned as to whether any significant block of test/example code that I'd entered into the interpreter was actually addressing the exact question that I had in mind. And second, the answer might have been of the 'yes, but' kind. In other words, it might perhaps have been true in a certain sort of simple example, but one that failed to provide the complete picture. So sometimes it's reassuring to be able to get an authoritative answer. Thanks again for taking the time to answer. -- http://mail.python.org/mailman/listinfo/python-list
Using Python to run SSH commands on a remote server
Generally speaking, what tools would I use to do this? Is there a built-in module for it? I looked at the telnetlib module, but the documentation wasn't really complete enough for me to get a good idea of it. Is Telnet and SSH even the same thing? Basically, I want to write a script that will automate the process of making all .py files on my web server executable (chmod 755, or something similar). Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: Going from Tkinter to pyQT
Alex Bryan a écrit : I had a guy on this mailing list tell me that pyQT is much better than Tkinter, and after looking into it a bit I think he is right. However, I can't find much on it. I want to know if there are any good books or online tutorials that would be helpful. I doubt there is one, but if there is one on going from Tkinter to pyQT, that would be amazing. Well if any of you guys have any tips or suggestions on any of this I would appreciate it. Hi Alex, Check Mark Summerfield's book on PyQt4 : http://www.qtrac.eu/pyqtbook.html Other links : http://www.rkblog.rk.edu.pl/w/p/python/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Question: How do I format printing in python
format the strings: http://www.python.org/doc/2.1.3/lib/typesseq-strings.html [EMAIL PROTECTED] wrote: Hi All, How do I format printed data in python? I could not find this in the Python Reference Manual: http://docs.python.org/ref/print.html Nor could I find it in Matloff's great tutorial: http://heather.cs.ucdavis.edu/~matloff/Python/PythonIntro.pdf For example, how do I turn this: 512 Jun 5 2004 X11r6 22 Jan 17 2005 a2p 22 Jan 17 2005 acctcom 5374 Sep 15 2002 acledit 5664 May 13 2004 aclget 12020 May 13 2004 aclput 115734 Jun 2 2004 adb 46518 Jun 4 2004 admin 66750 Sep 16 2002 ali 1453 Sep 15 2002 alias 28150 Jun 4 2004 alog 15 May 12 2005 alstat into this: 512Jun 5 2004X11r6 22 Jan 17 2005a2p 22 Jan 17 2005acctcom 5374 Sep 15 2002acledit 5664 May 13 2004aclget 12020 May 13 2004aclput 115734 Jun 2 2004adb 46518 Jun 4 2004admin 66750 Sep 16 2002ali 1453 Sep 15 2002alias 28150 Jun 4 2004alog 15 May 12 2005alstat Thank you -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python to run SSH commands on a remote server
On Mon, 23 Jun 2008 13:30:55 -0400, John Salerno <[EMAIL PROTECTED]> wrote: Generally speaking, what tools would I use to do this? Is there a built-in module for it? I looked at the telnetlib module, but the documentation wasn't really complete enough for me to get a good idea of it. Is Telnet and SSH even the same thing? Telnet and SSH are different things. There's nothing in the standard library for making an SSH connection (aside from the process control libraries, which let you run an external SSH client in a child process). Basically, I want to write a script that will automate the process of making all .py files on my web server executable (chmod 755, or something similar). There are several third-party SSH libraries, eg Twisted Conch and Paramiko. Jean-Paul -- http://mail.python.org/mailman/listinfo/python-list
Re: Question: How do I format printing in python
On Jun 23, 12:12 pm, [EMAIL PROTECTED] wrote: > Hi All, > > How do I format printed data in python? > I could not find this in the Python Reference > Manual:http://docs.python.org/ref/print.html > Nor could I find it in Matloff's great > tutorial:http://heather.cs.ucdavis.edu/~matloff/Python/PythonIntro.pdf > > For example, how do I turn this: > > 512 Jun 5 2004 X11r6 > 22 Jan 17 2005 a2p > 22 Jan 17 2005 acctcom > 5374 Sep 15 2002 acledit > 5664 May 13 2004 aclget > 12020 May 13 2004 aclput > 115734 Jun 2 2004 adb > 46518 Jun 4 2004 admin > 66750 Sep 16 2002 ali > 1453 Sep 15 2002 alias > 28150 Jun 4 2004 alog > 15 May 12 2005 alstat > > into this: > > 512 Jun 5 2004 X11r6 > 22 Jan 17 2005 a2p > 22 Jan 17 2005 acctcom > 5374 Sep 15 2002 acledit > 5664 May 13 2004 aclget > 12020 May 13 2004 aclput > 115734 Jun 2 2004 adb > 46518 Jun 4 2004 admin > 66750 Sep 16 2002 ali > 1453 Sep 15 2002 alias > 28150 Jun 4 2004 alog > 15 May 12 2005 alstat > > Thank you You could do this: data = ['512 Jun 5 2004 X11r6 ', \ '22 Jan 17 2005 a2p', \ '22 Jan 17 2005 acctcom ', \ '5374 Sep 15 2002 acledit ', \ '5664 May 13 2004 aclget ', \ '12020 May 13 2004 aclput ', \ '115734 Jun 2 2004 adb ', \ '46518 Jun 4 2004 admin ', \ '66750 Sep 16 2002 ali ', \ '1453 Sep 15 2002 alias ', \ '28150 Jun 4 2004 alog ', \ '15 May 12 2005 alstat '] for i in data: d = i.split() print d[0].ljust(9), print d[1].ljust(6), print d[2].ljust(4), print d[3].ljust(7), print d[4].ljust(9) which gives you 512 Jun52004X11r6 22Jan17 2005a2p 22Jan17 2005acctcom 5374 Sep15 2002acledit 5664 May13 2004aclget 12020 May13 2004aclput 115734Jun22004adb 46518 Jun42004admin 66750 Sep16 2002ali 1453 Sep15 2002alias 28150 Jun42004alog 15May12 2005alstat or perhaps this: for i in data: d = i.split() print d[0].rjust(9), print d[1].ljust(6), print d[2].zfill(2).ljust(4), print d[3].ljust(7), print d[4].ljust(9) which gives this (if you want the digits in the numbers to line up): 512 Jun05 2004X11r6 22 Jan17 2005a2p 22 Jan17 2005acctcom 5374 Sep15 2002acledit 5664 May13 2004aclget 12020 May13 2004aclput 115734 Jun02 2004adb 46518 Jun04 2004admin 66750 Sep16 2002ali 1453 Sep15 2002alias 28150 Jun04 2004alog 15 May12 2005alstat -- http://mail.python.org/mailman/listinfo/python-list
installed 3.0, rebind winprompt to 2.5?
i installed python 3.0. now when im laucnhing from the dos prompt in win vista it searches in python3.0 i want to rebind it to 2.5, what do i need to change? -- http://mail.python.org/mailman/listinfo/python-list
Re: Question: How do I format printing in python
On Jun 23, 12:47 pm, Mensanator <[EMAIL PROTECTED]> wrote: > On Jun 23, 12:12 pm, [EMAIL PROTECTED] wrote: > > > > > > > Hi All, > > > How do I format printed data in python? > > I could not find this in the Python Reference > > Manual:http://docs.python.org/ref/print.html > > Nor could I find it in Matloff's great > > tutorial:http://heather.cs.ucdavis.edu/~matloff/Python/PythonIntro.pdf > > > For example, how do I turn this: > > > 512 Jun 5 2004 X11r6 > > 22 Jan 17 2005 a2p > > 22 Jan 17 2005 acctcom > > 5374 Sep 15 2002 acledit > > 5664 May 13 2004 aclget > > 12020 May 13 2004 aclput > > 115734 Jun 2 2004 adb > > 46518 Jun 4 2004 admin > > 66750 Sep 16 2002 ali > > 1453 Sep 15 2002 alias > > 28150 Jun 4 2004 alog > > 15 May 12 2005 alstat > > > into this: > > > 512 Jun 5 2004 X11r6 > > 22 Jan 17 2005 a2p > > 22 Jan 17 2005 acctcom > > 5374 Sep 15 2002 acledit > > 5664 May 13 2004 aclget > > 12020 May 13 2004 aclput > > 115734 Jun 2 2004 adb > > 46518 Jun 4 2004 admin > > 66750 Sep 16 2002 ali > > 1453 Sep 15 2002 alias > > 28150 Jun 4 2004 alog > > 15 May 12 2005 alstat > > > Thank you > > You could do this: > > data = ['512 Jun 5 2004 X11r6 ', \ > '22 Jan 17 2005 a2p', \ > '22 Jan 17 2005 acctcom ', \ > '5374 Sep 15 2002 acledit ', \ > '5664 May 13 2004 aclget ', \ > '12020 May 13 2004 aclput ', \ > '115734 Jun 2 2004 adb ', \ > '46518 Jun 4 2004 admin ', \ > '66750 Sep 16 2002 ali ', \ > '1453 Sep 15 2002 alias ', \ > '28150 Jun 4 2004 alog ', \ > '15 May 12 2005 alstat '] > > for i in data: > d = i.split() > print d[0].ljust(9), > print d[1].ljust(6), > print d[2].ljust(4), > print d[3].ljust(7), > print d[4].ljust(9) > > which gives you > > 512 Jun 5 2004 X11r6 > 22 Jan 17 2005 a2p > 22 Jan 17 2005 acctcom > 5374 Sep 15 2002 acledit > 5664 May 13 2004 aclget > 12020 May 13 2004 aclput > 115734 Jun 2 2004 adb > 46518 Jun 4 2004 admin > 66750 Sep 16 2002 ali > 1453 Sep 15 2002 alias > 28150 Jun 4 2004 alog > 15 May 12 2005 alstat > > or perhaps this: > > for i in data: > d = i.split() > print d[0].rjust(9), > print d[1].ljust(6), > print d[2].zfill(2).ljust(4), > print d[3].ljust(7), > print d[4].ljust(9) > > which gives this (if you want the digits in the numbers to > line up): > > 512 Jun 05 2004 X11r6 > 22 Jan 17 2005 a2p > 22 Jan 17 2005 acctcom > 5374 Sep 15 2002 acledit > 5664 May 13 2004 aclget > 12020 May 13 2004 aclput > 115734 Jun 02 2004 adb > 46518 Jun 04 2004 admin > 66750 Sep 16 2002 ali > 1453 Sep 15 2002 alias > 28150 Jun 04 2004 alog > 15 May 12 2005 alstat In retrospect, that looks kind of clunky. If it was for my use, I'd do for i in data: d = i.split() print d[0].rjust(9), print d[1].rjust(6), print d[2].zfill(2), print d[3].ljust(7), print d[4].ljust(9) which looks like: 512Jun 05 2004X11r6 22Jan 17 2005a2p 22Jan 17 2005acctcom 5374Sep 15 2002acledit 5664May 13 2004aclget 12020May 13 2004aclput 115734Jun 02 2004adb 46518Jun 04 2004admin 66750Sep 16 2002ali 1453Sep 15 2002alias 28150Jun 04 2004alog 15May 12 2005alstat -- http://mail.python.org/mailman/listinfo/python-list
Re: IDE on the level of Eclipse or DEVc++?
i downloaded the extension for eclipse, nice. any opinions of netbeans vs eclipse for python? -- http://mail.python.org/mailman/listinfo/python-list
socket error: connection refused?
The first time i start the shell it always works. But often after closing it and restarting it I get: Two windows pops up and the shell, after clicking the windows the shell just closes by itself. socket error: connection refused IDLE's subprocess didnt make connection. im using python 2.5.1 and windows vista. -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python to run SSH commands on a remote server
John Salerno <[EMAIL PROTECTED]> wrote: > Generally speaking, what tools would I use to do this? Is there a built-in > module for it? There's paramiko (q.g.). I can't personally vouch for it, but it seems popular... It seems to depend on a separate crypto library. > Is Telnet and SSH even the same thing? No. They're very different. -- [mdw] -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python to run SSH commands on a remote server
John Salerno wrote: > Generally speaking, what tools would I use to do this? Is there a built-in > module for it? I've had a very nice experience using the 3rd-party package "paramiko" for ssh communication. There's nothing in the standard library that I know of. > I looked at the telnetlib module, but the documentation > wasn't really complete enough for me to get a good idea of it. Is Telnet > and SSH even the same thing? Telnet is not the same protocol. SSH is an encrypted transport, telnet is not. > Basically, I want to write a script that will automate the process of > making all .py files on my web server executable (chmod 755, or something > similar). Be careful, this procedure sounds potential risky, security-wise ;-) Jeffrey -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python to run SSH commands on a remote server
"Jeffrey Froman" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Be careful, this procedure sounds potential risky, security-wise ;-) I guess a blanket process might be a tad risky, but don't you want all CGI files to be executable by all? -- http://mail.python.org/mailman/listinfo/python-list
insertion sorts...
I don't know this list is the right place for newbie questions. I try to implement insertion sort in pyhton. At first code there is no problem. But the second one ( i code it in the same pattern i think ) doesn't work. Any ideas ? def insertion_sort(aList): for i in range(len(aList)): for j in range(i): if aList[i] < aList[j]: aList.insert(j,aList[i]) del aList[i+1] if __name__ == "__main__": MyList = [7,3,5,19,8,2,9,4,15,6,8,3,19] insertion_sort(MyList) print MyList - def insertion_sort(aList): for iterator in aList: for number in range(aList.index(iterator)): if iterator < number: aList.insert(aList.index(number),iterator) del aList[aList.index(iterator)+1] if __name__ == "__main__": MyList = [7,3,5,19,8,2,9,4,15,6,8,3,19] insertion_sort(MyList) print MyList -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python and MS-SQL Server
[EMAIL PROTECTED] wrote: I have programmed before, but I am new to using Python. I am currently using the ArcGIS software which uses Python as its scripting language for automating tasks. The current script that I am working on requires pulling in some information from a Microsoft SQL Server. I was wondering if anyone could suggest the best way of doing this? I have looked at the different modules that are specific to SQL server, but none of them seem to be active or up to date. If not, could anyone make any suggestions? Or would it be better to go the ODBC route? I am not talking about large amounts of data, so I am not concerned about performance so ODBC would be fine to use as well. Have a look at this: http://ramblings.timgolden.me.uk/2007/09/26/using-mssql-from-within-python-25/ It's hardly comprehensive, but it more-or-less answers your question. Also, being new to Python, I recently read about dictionaries and was wondering if there was a quick way to dump a table into a dictionary? For example, I have a customer list with a customer ID. It would be great to have the ID as the "key" and the name as the "data" (or even better, have a list as the data element containing all the information about the customer). I am sure that this could be done manually, by looping through each record and adding it to the dictionary -- but I was just wondering if something like this has already been done (I don't need to reinvent the wheel here). The key phrase you're looking for here is ORM (Object-Relational Mapper). Again, not an exact match for what you're saying, but unless you app remains *remarkably* simple, you're going to end up reinventing an ORM anyway. Probably the front runner these days is sqlalchemy (which certainly supports MS-SQL): http://sqlalchemy.org but just Google for "python orm" for any number of discussions and comparisons. TJG -- http://mail.python.org/mailman/listinfo/python-list
Re: socket error: connection refused?
It's a security conflict. You should be able to run it again and have it work. Our company's cisco does the same thing (even after we approve the app) -- http://mail.python.org/mailman/listinfo/python-list
Re: socket error: connection refused?
On 23 Juni, 20:55, [EMAIL PROTECTED] wrote: > It's a security conflict. You should be able to run it again and have > it work. Our company's cisco does the same thing (even after we > approve the app) doesnt work but i found out i should open the task manager and kill all the python processes, then it works. -- http://mail.python.org/mailman/listinfo/python-list
Re: learning unit testing in python
A good starting point is Mark Pilgrim's Dive Into Python. http://www.diveintopython.org/unit_testing/index.html Josh On Jun 23, 7:55 am, Alex <[EMAIL PROTECTED]> wrote: > Hi all. > > I'd like learn some basic unit testing with python. > I red some articles about different testing framework like unittest or > nose, but I'm a bit confused: what is the best choice? I'm not a > professional developer (I'm a SEO) but I belive that unit testing is a > good and pragmatic way to produce working software, so I'd like to > find something really simple ad straightforward because I don't have > to manage big programming projects. > > Thanks in advance, > > Alex -- http://mail.python.org/mailman/listinfo/python-list
Re: installed 3.0, rebind winprompt to 2.5?
On Jun 23, 6:53 pm, cirfu <[EMAIL PROTECTED]> wrote: > i installed python 3.0. now when im laucnhing from the dos prompt in > win vista it searches in python3.0 > > i want to rebind it to 2.5, what do i need to change? Reinstalling 2.5 should work. Michael Foord http://www.ironpythoninaction.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: learning unit testing in python
> Hi all. > > I'd like learn some basic unit testing with python. > I red some articles about different testing framework like unittest or > nose, but I'm a bit confused: what is the best choice? I'm not a > professional developer (I'm a SEO) but I belive that unit testing is a > good and pragmatic way to produce working software, so I'd like to > find something really simple ad straightforward because I don't have > to manage big programming projects. > > Thanks in advance, > > Alex Have you checked out doctest? http://docs.python.org/lib/module-doctest.html It's the best way to add few tests to function or class, you just add them to docstring. Unit tests are somewhat demanding as they usualy require creating another file just for storing them, but are ofcourse more powerful as well. For example, unittest module alows you to execute a section of code before or after each test to initialize values and clean up. Nose module has few extra features, but it can also run test writen for unittest, so it's easy to switch if you find standard library module lacking for your purpose. -- http://mail.python.org/mailman/listinfo/python-list
Re: Fast and easy GUI prototyping with Python
Michael Torrie <[EMAIL PROTECTED]>: > Pete Kirkham wrote: >> 2008/6/21 Val-Amart <[EMAIL PROTECTED]>: >> >>> Use PyQt. You will gain great portability +all the functionality built >>> in qt. >>> You can try PyGTK also, though i wont recommend it. >>> >> Why would you not recommend it? I've been using it for a mall project, >> and would like to know if there's some pit waiting for me to fall into. > > The only pitfall is Mac compatibility. OS X support in GTK is still > under development, and much harder to get running than Qt. I guess one > other minor thing is that on win32 it's not quite native-looking, but > pretty darn close. Just out of curiosity: Does gtk's look also match Vista's look? -- Freedom is always the freedom of dissenters. (Rosa Luxemburg) -- http://mail.python.org/mailman/listinfo/python-list
Re: An idiom for code generation with exec
On Jun 21, 7:52 am, Peter Otten <[EMAIL PROTECTED]> wrote: > eliben wrote: > > On Jun 20, 2:44 pm, Peter Otten <[EMAIL PROTECTED]> wrote: > >> eliben wrote: > >> > Additionally, I've found indentation to be a problem in such > >> > constructs. Is there a workable way to indent the code at the level of > >> > build_func, and not on column 0 ? > > >> exec"if 1:" + code.rstrip() > > >> Peter > > > Why is the 'if' needed here ? I had .strip work for me: > > A simple .strip() doesn't work if the code comprises multiple lines: > > >>> def f(): > > ... return """ > ... x = 42 > ... if x > 0: > ... print x > ... """ > ...>>> exec "if 1:\n" + f().rstrip() > 42 > >>> exec f().strip() > > Traceback (most recent call last): > File "", line 1, in > File "", line 2 > if x > 0: > ^ > IndentationError: unexpected indent > > You can of course split the code into lines, calculate the indentation of > the first non-white line, remove that indentation from all lines and then > rejoin. > textwrap.dedent will do all that for you... Michael Foord http://www.ironpythoninaction.com/ > Peter -- http://mail.python.org/mailman/listinfo/python-list
Re: installed 3.0, rebind winprompt to 2.5?
cirfu wrote: i installed python 3.0. now when im laucnhing from the dos prompt in win vista it searches in python3.0 i want to rebind it to 2.5, what do i need to change? When you install any Python on Windows with the .msi installer, there is a box something like [x] make this the default Python on this machine. You apparently did not notice to uncheck it. You could reinstall 2.5. You should be able to directly change the file association between .py/,pyc and 'open', but I do not know how in Vista. Try the help system or wait for another answer ;-) PS. What you call the 'dos prompt' is now called a 'Command Prompt'. There is no DOS on nt/xp/vista. tjr -- http://mail.python.org/mailman/listinfo/python-list
Re: Going from Tkinter to pyQT
Alex Bryan <[EMAIL PROTECTED]>: > I had a guy on this mailing list tell me that pyQT is much better than > Tkinter, and after looking into it a bit I think he is right. However, > I can't find much on it. I want to know if there are any good books or > online tutorials that would be helpful. I doubt there is one, but if > there is one on going from Tkinter to pyQT, that would be amazing. > Well if any of you guys have any tips or suggestions on any of this I > would appreciate it. There are some tutorials mentioned in the official python wiki [1]. Then there is the PyQt wiki [2], which as a section dedicated to tutorials [3]. Moreover I absolutely recommend to read the reference gui from riverbank computing [4]. At last, you should always keep the official docs at hand. They contain plenty of good tutorials and background documents about different Qt4 techniques, that are _definitely_ worth reading. Code samples and API docs are of course kept in C++, but transferring these to Python is mostly easy, the differences are not that big. So you see, there's more than enough PyQt4 stuff out there ;) But the most important thing to do at the transition from Tk to Qt4 goes first, before you start digging any Qt4 specific document: Forget everything, you learned about GUI programming with Tk. Qt4 works complety differently! ;) [1] http://wiki.python.org/moin/PyQt [2] http://www.diotavelli.net/PyQtWiki [3] http://www.diotavelli.net/PyQtWiki/Tutorials [4] http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/pyqt4ref.html -- Freedom is always the freedom of dissenters. (Rosa Luxemburg) -- http://mail.python.org/mailman/listinfo/python-list
tuple.index() and tuple.count()
Before the inevitable response comes, let me assure you I've read through the posts from Guido about this. 7 years ago Guido clearly expressed a displeasure with allowing these methods for tuple. Let me lay out (in a fresh way) why I think we should reconsider. 1) It's counterintuitive to exclude them: It makes very little sense why an indexable data structure wouldn't have .index() as a method. It makes even less sense to not allow .count() 2) There's no technical reason (that I'm aware of) why these can't be added 3) It does not (contrary to one of Guido's assertions) require any relearning of anything. It's a new method that could be added without breaking any code whatsoever (there isn't even a UserTuple.py to break) 4) The additional documentation is relatively minute (especially since it could be copied and pasted virtually verbatim from the list methods 5) It's MORE Pythonic to do it this way (more intuitive, less boilerplate) 6) It jives with the help file better. One of Guido's many stated reasons was that tuples are for heterogeneous sequences and lists are for homogeneous sequences. While this may be hypothetically true, the help file does not come close to pointing you in this direction nor does the implementation of the language. example: "Tuples have many uses. For example: (x, y) coordinate pairs, employee records from a database, etc. Tuples, like strings, are immutable: it is not possible to assign to the individual items of a tuple (you can simulate much of the same effect with slicing and concatenation, though). It is also possible to create tuples which contain mutable objects, such as lists." is a quote from the help file. Not only does it never mention homogeneous vs. heterogeneous but mentions both immutable and mutable which draws your mind and attention to that aspect. While tuples and lists may have different uses based on convention, there's really only two reasons to ever use a tuple: Efficiency or dictionary keys (or some similar immutability requirement). The implementation contains absolutely NOTHING to reinforce the idea that lists are for homogeneous data. The implementation of the language contains EVERY indication that tuples are second class citizens only to be used for those limited functions above (in fact, efficiency isn't even talked about in the documentation... I pieced that together from other threads). Tuples could have been implemented as frozenlist just as easily. The lack of .index() and .count() appears to be primarily motivated by a subtle and silent (at least in the documentation) desire to push towards coding "best practice" rather than for any technical reason. While I'm certainly not a "change for change sake" kind of guy and I understand the "bang for your buck" thinking, I'm just not seeing the rational for stopping this so forcibly. I get the impression that if a perfect working patch was submitted, Guido might still reject it which just seems odd to me. Again, I'm not trying to raise a stink or open old wounds, I just ran across it in an app, started doing some research and was thoroughly confused (for the record, I'm using the tuples as dictionary keys and had a desire to do k.count() for some edit checks and realized I had to convert the thing to a list first to run count() ) -- http://mail.python.org/mailman/listinfo/python-list
Re: py2exe, PyQT, QtWebKit and jpeg problem
On Monday 23 June 2008 15:02, Carbonimax wrote: > If I copy the dll in the dist directory, and I use QPluginLoader() and > load(), > it does work in the .py but it doesn't in .exe made with py2exe > > my code : > dll = QPluginLoader(path_to_dll) > res = dll.load() > > res == true in the .py > res == false in the .exe > > :-/ Maybe py2exe builds executables that can't load DLLs in this way. In any case, it might be worth asking about this on the PyQt mailing list http://www.riverbankcomputing.com/mailman/listinfo/pyqt or on the py2exe mailing list https://lists.sourceforge.net/lists/listinfo/py2exe-users where there may well be people who have solved this problem independently. David -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python to run SSH commands on a remote server
On 2008-06-23, John Salerno <[EMAIL PROTECTED]> wrote: > Generally speaking, what tools would I use to do this? In shell scripts I use expect to automate ssh stuff, so I would probably give pyexpect or pexpect a try: http://sourceforge.net/projects/pexpect/ > Is there a built-in module for it? I looked at the telnetlib > module, but the documentation wasn't really complete enough > for me to get a good idea of it. Is Telnet and SSH even the > same thing? Not even close. > Basically, I want to write a script that will automate the > process of making all .py files on my web server executable > (chmod 755, or something similar). I'd probably just write an expect script: http://expect.nist.gov/ -- Grant Edwards grante Yow! Is a tattoo real, like at a curb or a battleship? visi.comOr are we suffering in Safeway? -- http://mail.python.org/mailman/listinfo/python-list
Re: tuple.index() and tuple.count()
never mind... a coworker pointed me to this http://bugs.python.org/issue1696444 apparently they're there in py3k... -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python to run SSH commands on a remote server
John Salerno wrote: > I guess a blanket process might be a tad risky, but don't you want all CGI > files to be executable by all? Typically, I prefer CGI scripts to be executable only the owner. If the web server runs those scripts as a different user, then that user must also be permitted to execute the scripts of course. Also note that "all .py files on my web server" is not necessarily restricted to CGI scripts -- and therein lies the real gist of my cautionary note. Jeffrey -- http://mail.python.org/mailman/listinfo/python-list
Re: 2to3 bug and question
Helmut Jarausch wrote: > Hi, > > is this the right group to ask / report problems with python3.0 ? While the general Python list is the right place to discuss bugs it's not sensible to report them here. Most Python core developers except Martin, me and a few more aren't reading this list at all. The bug tracker at http://bugs.python.org/ as a category for 2to3 bugs and feature requests. Grüße von der anderen Seite Aachens Christian -- http://mail.python.org/mailman/listinfo/python-list
Re: insertion sorts...
python_newbie wrote: I don't know this list is the right place for newbie questions. It is. We get them all the time. There is also a tutor mailing list. > I try to implement insertion sort in pyhton. python > At first code there is no problem. It is pretty straightforward. But the second one ( i code it in the same pattern i think ) Same pattern, but different algorithm as written. doesn't work. Any ideas ? When something 'doesn't work', you should post how and some details. If an exception is raised, *cut and paste* the full traceback and error message after examining it yourself. If bad output is produced, *cut and paste* that. Here is it obvious what good output would be. When it is not, say what you expected that is different. In this case, I am not sure why you think the new algorithm will work. But I suspect you were not trying to write a different algorithm ;-) see below. def insertion_sort(aList): for i in range(len(aList)): for j in range(i): if aList[i] < aList[j]: aList.insert(j,aList[i]) del aList[i+1] The last two lines could be replaced with aList[j:i+1] = [aList[i]]+aList[j:i] which directly replace a slice of the list with a rotated version You could also lookup aList[i] just once by adding item = aList[i] before the j loop. This also makes the code slightly easier to read. if __name__ == "__main__": MyList = [7,3,5,19,8,2,9,4,15,6,8,3,19] insertion_sort(MyList) print MyList - def insertion_sort(aList): for iterator in aList: The members of aList are 'items' or whatever, but not iterators. for number in range(aList.index(iterator)): if iterator < number: aList.insert(aList.index(number),iterator) del aList[aList.index(iterator)+1] Calculating alist.index(item) twice is bad. Do it once before the inner loop. if __name__ == "__main__": MyList = [7,3,5,19,8,2,9,4,15,6,8,3,19] insertion_sort(MyList) print MyList Here is the error message you omitted Traceback (most recent call last): File "C:\Program Files\Python30\misc\temp", line 12, in insertion_sort(MyList) File "C:\Program Files\Python30\misc\temp", line 6, in insertion_sort aList.insert(aList.index(number),iterator) ValueError: list.index(x): x not in list I believe you meant to insert at number, which is a position, not index(position), which only accidentally works. With that corrected, I believe you were trying to write for item in aList: i = aList.index(item) for number in range(i): if item < aList[number]: aList.insert(number,item) del aList[i+1] which looks parallel to the first code, which runs, but which does not sort. The difference is iterating through items instead of positions. The problem is that aList is being modified inside the loop. That usually is a bad idea. If you want to sort the list in place without either copying the list or building a new sorted list, you have to use indexes. Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Re: 2to3 bug and question
Helmut Jarausch wrote: is this the right group to ask / report problems with python3.0 ? It is certainly a place. Given the number of bogus bug reports on bugs.python.org, asking here is often a good idea. In this and your other post, the problems you report look like probable bugs to me, so go ahead and report them on the bug list unless someone else has an explanation (within a day, say). 2to3 had probably been less well tested and debugged than either of the new releases, so testing it now is helpful. tjr -- http://mail.python.org/mailman/listinfo/python-list
Re: [2to3] Bug converting import
Helmut Jarausch wrote:
> Now, when I invoke Master.py I get
>
> Traceback (most recent call last):
> File "Master.py", line 2, in
> from . import Slave
> ValueError: Attempted relative import in non-package
>
>
> thanks for looking into it,
The cause of the bug is in fixes/fix_import.py
probably_a_local_import(). The function doesn't check if
dirname(file_path) is a package.
This patch should fix the bug:
Index: Lib/lib2to3/fixes/fix_import.py
===
--- Lib/lib2to3/fixes/fix_import.py (Revision 64490)
+++ Lib/lib2to3/fixes/fix_import.py (Arbeitskopie)
@@ -53,8 +53,13 @@
# Must be stripped because the right space is included by the parser
imp_name = imp_name.split('.', 1)[0].strip()
base_path = dirname(file_path)
-base_path = join(base_path, imp_name)
-for ext in ['.py', pathsep, '.pyc', '.so', '.sl', '.pyd']:
-if exists(base_path + ext):
+base_name = join(base_path, imp_name)
+base_init = join(base_path, "__init__")
+exts = ['.py', pathsep, '.pyc', 'pyo', '.so', '.sl', '.pyd']
+if not any(exists(base_init + ext) for ext in exts):
+# not a package
+return False
+if any(exists(base_name + ext) for ext in exts):
return True
return False
--
http://mail.python.org/mailman/listinfo/python-list
Re: Storing value with limits in object
On Jun 23, 1:24 am, "Josip" <[EMAIL PROTECTED]> wrote:
> > Why not make it a function?
>
> > function assignLimited(value, vmin, vmax):
> > value = max(vmin, value)
> > value = min(vmax, value)
> > return value
>
> > a = assignLimited(7, 0, 10)
>
> > Seems like it solves your problem relatively cleanly.
> > Note: I also removed min/max variables because they would mask the
> > built-in min/max functions.
>
> > -Larry
>
> Still, I'm going for object
> oriented solution because I want the value and it's limits to be kept
> together as I'll have many such values with different limits.
In that case, "overriding assignment" makes no sense since if an
operation is done on two values that have two different limits, what
would happen? Take the first's or second's limits, or interpolate the
new limit by some magic function? A much better solution would be for
operation to always return plain vanilla int, and we set limits
explicitly.
> Storing all
> the limits in caller namespace is not really an option.
You want to store limits in the object too?
Try this: (_LimitedInt inherits from int, so operator overloading is
unnecessary)
###
#!/usr/bin/env python
class _LimitedInt(int):
class InvalidLimitsError(Exception): pass
def __init__(self, value, base = 10):
int.__init__(value, base)
def setlimits(self, lim):
''' Set the limits and if value is not within limit,
raise ValueError
The lim argument accepts:
- A _LimitedInt instance, from which to copy the limits
- A two-tuple, which specifies the limits i.e. (min, max)
If lim isn't those or lim[0] > lim[1], raise
InvalidLimitsError
Accepting _LimitedInt instance is just for convenience
'''
if isinstance(lim, _LimitedInt):
lim = lim.limits
try:
self.min, self.max = [int(x) for x in lim]
if self.min > self.max: raise ValueError
except (ValueError, TypeError):
raise self.InvalidLimitsError, ('limit = %s' % str(lim))
if not (self.min < self < self.max):
raise ValueError, \
('val = %s, min = %s, max = %s' % \
(self, self.min, self.max))
def getlimits(self):
return (self.min, self.max)
limits = property(getlimits, setlimits)
def lint(value, limits, base = 10):
if base != 10:
ret = _LimitedInt(value, base)
else:
ret = _LimitedInt(value)
ret.limits = limits
return ret
### END OF REAL CODE###
### THE REST ARE JUST TESTING CODES ###
if __name__ == '__main__':
print 'Instantiating lint...'
a = lint(50, (0, 200)) # Limit explicitly specified
b = lint(150, a)# Copy the limits of a
c = lint(a, (0, 1000)) # Value = a, Limit = (0, 1000)
d = lint(a, c) # Value = a, Limit = c
print
print 'Printing the value and the limits...'
print a, a.limits
print b, b.limits
print c, c.limits
print d, d.limits
print
print 'Changing limits'
print 'Note: lint is partially immutable,'
print ' its limits is mutable,'
print ' while its value is immutable'
a.limits = (0, 300)
b.limits = a
print a, a.limits
print b, b.limits
print
print '"Changing" values'
a = lint(b, a)
print a, a.limits
print
print 'Operations...'
e = lint(a + b - c * d + 100, (-1, 1000))
f = a + b - c * d ## Operation returns plain integer
g = lint(f, (-10, 10)) ## Always recast result of operator
print e, e.limits, type(e) ## This is an int, not lint
print f, type(f) ## BEWARE: f is integer, it has no
limits
print g, g.limits, type(g)
## INVALIDS
# a = lint(100, (1000, 10))
# a = lint(100, 'ab')
# a = lint(100, (1, 0))
# a = lint(100, 10)
# a = lint(100, (10, 1000, 1))###
--
http://mail.python.org/mailman/listinfo/python-list
Re: Storing value with limits in object
On Jun 23, 1:24 am, "Josip" <[EMAIL PROTECTED]> wrote:
> > Why not make it a function?
>
> > function assignLimited(value, vmin, vmax):
> > value = max(vmin, value)
> > value = min(vmax, value)
> > return value
>
> > a = assignLimited(7, 0, 10)
>
> > Seems like it solves your problem relatively cleanly.
> > Note: I also removed min/max variables because they would mask the
> > built-in min/max functions.
>
> > -Larry
>
> Still, I'm going for object
> oriented solution because I want the value and it's limits to be kept
> together as I'll have many such values with different limits.
In that case, "overriding assignment" makes no sense since if an
operation is done on two values that have two different limits, what
would happen? Take the first's or second's limits, or interpolate the
new limit by some magic function? A much better solution would be for
operation to always return plain vanilla int, and we set limits
explicitly.
> Storing all
> the limits in caller namespace is not really an option.
You want to store limits in the object too?
Try this: (_LimitedInt inherits from int, so operator overloading is
unnecessary)
###
#!/usr/bin/env python
class _LimitedInt(int):
class InvalidLimitsError(Exception): pass
def __init__(self, value, base = 10):
int.__init__(value, base)
def setlimits(self, lim):
''' Set the limits and if value is not within limit,
raise ValueError
The lim argument accepts:
- A _LimitedInt instance, from which to copy the limits
- A two-tuple, which specifies the limits i.e. (min, max)
If lim isn't those or lim[0] > lim[1], raise
InvalidLimitsError
Accepting _LimitedInt instance is just for convenience
'''
if isinstance(lim, _LimitedInt):
lim = lim.limits
try:
self.min, self.max = [int(x) for x in lim]
if self.min > self.max: raise ValueError
except (ValueError, TypeError):
raise self.InvalidLimitsError, ('limit = %s' % str(lim))
if not (self.min < self < self.max):
raise ValueError, \
('val = %s, min = %s, max = %s' % \
(self, self.min, self.max))
def getlimits(self):
return (self.min, self.max)
limits = property(getlimits, setlimits)
def lint(value, limits, base = 10):
if base != 10:
ret = _LimitedInt(value, base)
else:
ret = _LimitedInt(value)
ret.limits = limits
return ret
### END OF REAL CODE###
### THE REST ARE JUST TESTING CODES ###
if __name__ == '__main__':
print 'Instantiating lint...'
a = lint(50, (0, 200)) # Limit explicitly specified
b = lint(150, a)# Copy the limits of a
c = lint(a, (0, 1000)) # Value = a, Limit = (0, 1000)
d = lint(a, c) # Value = a, Limit = c
print
print 'Printing the value and the limits...'
print a, a.limits
print b, b.limits
print c, c.limits
print d, d.limits
print
print 'Changing limits'
print 'Note: lint is partially immutable,'
print ' its limits is mutable,'
print ' while its value is immutable'
a.limits = (0, 300)
b.limits = a
print a, a.limits
print b, b.limits
print
print '"Changing" values'
a = lint(b, a)
print a, a.limits
print
print 'Operations...'
e = lint(a + b - c * d + 100, (-1, 1000))
f = a + b - c * d ## Operation returns plain integer
g = lint(f, (-10, 10)) ## Always recast result of operator
print e, e.limits, type(e) ## This is an int, not lint
print f, type(f) ## BEWARE: f is integer, it has no
limits
print g, g.limits, type(g)
## INVALIDS
# a = lint(100, (1000, 10))
# a = lint(100, 'ab')
# a = lint(100, (1, 0))
# a = lint(100, 10)
# a = lint(100, (10, 1000, 1))###
--
http://mail.python.org/mailman/listinfo/python-list
Re: insertion sorts...
On Jun 23, 11:52 am, python_newbie <[EMAIL PROTECTED]> wrote: > I don't know this list is the right place for newbie questions. I try > to implement insertion sort in pyhton. At first code there is no > problem. But the second one ( i code it in the same pattern i think ) > doesn't work. Any ideas ? > > > def insertion_sort(aList): > > for i in range(len(aList)): > for j in range(i): > if aList[i] < aList[j]: > aList.insert(j,aList[i]) > del aList[i+1] > > if __name__ == "__main__": > > MyList = [7,3,5,19,8,2,9,4,15,6,8,3,19] > insertion_sort(MyList) > print MyList > - > > def insertion_sort(aList): > > for iterator in aList: > for number in range(aList.index(iterator)): > if iterator < number: > aList.insert(aList.index(number),iterator) > del aList[aList.index(iterator)+1] > > if __name__ == "__main__": > > MyList = [7,3,5,19,8,2,9,4,15,6,8,3,19] > insertion_sort(MyList) > print MyList In your second attempt `number` is still essentially the same thing as `j` was in the first one. In the following line however, you treat `number` as if it is the actual value. It _should_ be `if iterator < aList[number]`. Also, you are missing a `break` after you do an insertion (this goes for both versions). The bigger question is why did the first one work? I think it works because in this statement `if aList[i] < aList[j]:` the value of `aList[i]` changes after the insertion to a different value. Because of the way this algorithm works, that _new_ value is guaranteed to be >= `aList[j]` so the insertion is never performed again. In the second version `iterator` stays as the original value even after it makes an insertion. This will cause it to perform the insertion multiple times. May I suggest you look into using `enumerate`: >>> for i, val in enumerate([4,5,6]): ... print i, val ... 0 4 1 5 2 6 It allows you to get the index and the value at the same time, which should eliminate the need for `aList.index`. Matt -- http://mail.python.org/mailman/listinfo/python-list
Re: Using Python to run SSH commands on a remote server
Jeffrey Froman wrote: Also note that "all .py files on my web server" is not necessarily restricted to CGI scripts -- and therein lies the real gist of my cautionary note. Yeah, I realized that afterwards. Good point. I was assuming all my executable files would be CGI, but that's not a good assumption to make! :) -- http://mail.python.org/mailman/listinfo/python-list
Re: learning unit testing in python
On 23 Giu, 21:26, "Josip" <[EMAIL PROTECTED]> wrote: > > Hi all. > > > I'd like learn some basic unit testing with python. > > I red some articles about different testing framework like unittest or > > nose, but I'm a bit confused: what is the best choice? I'm not a > > professional developer (I'm a SEO) but I belive that unit testing is a > > good and pragmatic way to produce working software, so I'd like to > > find something really simple ad straightforward because I don't have > > to manage big programming projects. > > > Thanks in advance, > > > Alex > > Have you checked out doctest?http://docs.python.org/lib/module-doctest.html > It's the best way to add few tests to function or class, you just add > them to docstring. > Unit tests are somewhat demanding as they usualy require creating another > file just for storing them, but are ofcourse more powerful as well. For > example, > unittest module alows you to execute a section of code before or after each > test > to initialize values and clean up. > > Nose module has few extra features, but it can also run test writen for > unittest, > so it's easy to switch if you find standard library module lacking for your > purpose. Tanks a lot. I'll the resources you suggest.. -- http://mail.python.org/mailman/listinfo/python-list
Re: learning unit testing in python
On Mon, Jun 23, 2008 at 2:55 PM, Alex <[EMAIL PROTECTED]> wrote: > Hi all. > > I'd like learn some basic unit testing with python. > I red some articles about different testing framework like unittest or > nose, but I'm a bit confused: what is the best choice? I'm not a > professional developer (I'm a SEO) but I belive that unit testing is a The best framework is nose at http://www.somethingaboutorange.com/mrl/projects/nose/. If you aren't already familiar with unit testing then http://diveintopython.org has a good tutorial about it at http://diveintopython.org/unit_testing/index.html. -- mvh Björn -- http://mail.python.org/mailman/listinfo/python-list
regexp: match only if previous matched?
I need to extract prices froma html-document. [0-9]*\$ matches 112$ 45$ etc but also just a $. why that shouldnt really matter and it is unlikely anyway to appear a $sign with no price attahced to it I still want to prevent it. How do I avoid matching "$"? It has to be "nbr$". -- http://mail.python.org/mailman/listinfo/python-list
Re: regexp: match only if previous matched?
2008/6/24, cirfu <[EMAIL PROTECTED]>: > > I need to extract prices froma html-document. > > [0-9]*\$ matches 112$ 45$ etc but also just a $. why that shouldnt > really matter and it is unlikely anyway to appear a $sign with no > price attahced to it I still want to prevent it. > > How do I avoid matching "$"? It has to be "nbr$". > > -- > http://mail.python.org/mailman/listinfo/python-list > In this simple case you can simple use something like: [0-9]+\$ ie. at least one digit immediately folowed by a dollar-sign If you really needed to check for a preceding text, look into look-behind assertions of the form (?<=...) or (?http://docs.python.org/lib/re-syntax.html hth, vbr -- http://mail.python.org/mailman/listinfo/python-list
Re: String question
Yes, ... don't ask me why, but in fact v1,v2,v3 = str1.split() does not seem to work. My original problem was I forgot about the parenthesis as Tim point out. So I ended up converting to a list as in: v = str1.split() and accessing the elements using v[0] v[1] ect...it is working now. Thanks. Andreu. [EMAIL PROTECTED] wrote: However I would make a list of it. v_list = example.split() That seems to me to be the more pythonic way to do it, since it is dynamic. -- http://mail.python.org/mailman/listinfo/python-list
Re: regexp: match only if previous matched?
On Jun 23, 6:02 pm, cirfu <[EMAIL PROTECTED]> wrote: > I need to extract prices froma html-document. > > [0-9]*\$ matches 112$ 45$ etc but also just a $. why that shouldnt > really matter and it is unlikely anyway to appear a $sign with no > price attahced to it I still want to prevent it. > > How do I avoid matching "$"? It has to be "nbr$". The answer to your question is to use a + instead of *. + matches 1 or more elements, * matches zero or more. The second point to mention is that, at least where I come from, the currency symbol comes before the number: $112 and $45 In which case your regexp should be somehting like this: \$[0-9]+ Carl Banks -- http://mail.python.org/mailman/listinfo/python-list
Re: Storing value with limits in object
#!/usr/bin/env python
## VERSION 2
##
## changelog:
## - Uses inheritance from _Limited
## - Added _LimitedLong and llong
## - limit choose between int, long, and float
class _Limited(object):
def setlimits(self, lim):
''' Set the limits and if value is not within limit,
raise ValueError
The lim argument accepts:
- An instance of _Limited, from which to copy the limits
- A two-tuple, which specifies the limits i.e. (min, max)
If lim isn't those or lim[0] > lim[1], raise
InvalidLimitsError
Accepting _Limited instance is just for convenience
'''
if isinstance(lim, _Limited):
self.min, self.max = lim.limits
else:
try:
self.min, self.max = lim
if self.min > self.max: raise ValueError
except (ValueError, TypeError):
raise self.InvalidLimitsError, ('limit = %s' %
str(lim))
if not (self.min < self < self.max):
raise ValueError, \
('val = %s, min = %s, max = %s' % \
(self, self.min, self.max))
def getlimits(self):
return (self.min, self.max)
limits = property(getlimits, setlimits)
class _LimitedInt(int, _Limited):
def __init__(self, value, base = 10):
int.__init__(value, base)
class _LimitedLong(long, _Limited):
def __init__(self, value, base = 10):
long.__init__(value, base)
class _LimitedFloat(float, _Limited):
def __init__(self, value):
float.__init__(value)
def lint(value, limits, base = None):
''' Always Creates _LimitedInt instance, allows the use of base
'''
if base:
ret = _LimitedInt(value, base)
else:
ret = _LimitedInt(value)
ret.limits = limits
return ret
def llong(value, limits, base = None):
''' Always Creates _LimitedLong instance, allows the use of base
'''
if base:
ret = _LimitedLong(value, base)
else:
ret = _LimitedLong(value)
ret.limits = limits
return ret
def lfloat(value, limits):
''' Always Creates _LimitedFloat instance
'''
ret = _LimitedFloat(value)
ret.limits = limits
return ret
def limit(value, limits):
''' Automatically choose between _LimitedInt, _LimitedLong,
or _LimitedFloat. Cannot use _LimitedInt's/Long's base
'''
if isinstance(value, (int, long)):
try:
ret = _LimitedInt(value)
except OverflowError:
ret = _LimitedLong(value)
elif isinstance(value, float):
ret = _LimitedFloat(value)
ret.limits = limits
return ret
--
http://mail.python.org/mailman/listinfo/python-list
Re: Terminating processes on Windows (handles and IDs)
On Jun 23, 6:33 pm, geoffbache <[EMAIL PROTECTED]> wrote: > Hi all, > > I've always wondered why os.kill isn't supported on Windows. I found a > discussion somewhere from 2006 about this so it seems others have > wanted it, but still nothing. So I have a half-baked solution > involving calling "taskkill" on Windows Vista or "tskill" on Windows > XP via the shell. I feel there has to be a better way. > > I'm also fairly confused about when I've got an ID and when I've got a > handle. The subprocess module gives me IDs which the above programs > accept, but other ways of spawning processes give me process handles > (while referring to them as process IDs in the docs...) and I don't > know how to kill a process with these. Besides, I've found an > amazingly useful PyGTK method, gobject.child_watch_add, which does > exactly what I want on UNIX but wants process handles on Windows. So I > can't use it in conjunction with subprocess there, and if I use some > other way of spawning processes I can't clean them up later. > > Is there any way to convert one of these numbers to the other? Or to > get a process handle out of subprocess? > (There must be one down there somewhere, surely?) > > Sorry for rambling a bit, am confused. > > Regards, > Geoff Bache My way to do it is using excellent wmi module by Tim Golden, which relies on Mark Hammond's pywin32 and Windows native wmi functionality. Here is the link - http://tgolden.sc.sabren.com/python/wmi.html Maybe, there is a more elegant way of doing that, but it works for me, and i feel nice with wmi. -- http://mail.python.org/mailman/listinfo/python-list
