Payal payal-pyt...@scriptkitchen.com writes:
[...]
Thanks a lot for the mails all of you.
Someone commented that wxpython occassionally shows it C/C++ roots. Will
that haunt me cos' I have zero knowledge of C/C++.
What about py-gtk? Is it more pythonic to learn and hence easy?
I've used wx
Hello everyone,
I have some code that's calling fcntl.ioctl. I need to pass a nested
structure as the 3rd argument of the function. Something like this
typedef struct coordinates{
int x;
int y;
} coordinates;
typedef struct point{
int amp;
coordinates* coord;
} point;
How would I
Kent Johnson wrote:
[..]
Why not just return the value from the function and pass it up the
call chain? If a call fails return None. Something like this:
That's what I ended up doing but the first thing occurred to me and I
was just wondering if there's any production code that relies on the
Angus Rodgers wrote:
[..]
This feels like a bit of a cheat, as if I am trying to program in
Python as if it were some other more familiar language. Should I
have coded this differently?
I can't offer anything concrete but here are some things that occur to
me at a glance.
0. You can try
Hello everyone,
Would it be considered unorthodox or 'wrong' in some sense for me to use
an exception to unwind the stack and return to a caller for a recursive
function?
I need to do a depth first search and when I find the right element to
just stop the whole thing, and get back to the
MK wrote:
Hi there,
i am using this code to send an cat ThisIsMyUrl with popen.
Of cos cat now waits for the CTRL+D command.
How can i send this command ?
Wouldn't it be better if you directly opened the ThisIsMyUrl file and
wrote the text into it rather than rely on shelling out for this?
Greetings Sudanshu,
sudhanshu gautam wrote:
when we work on the oops in the python then we have to pass the first
parameter as a self then the value of the other parameters .
Well, not explicitly. If you're familiar with OOPS in C++, self is
analogous to the this pointer there. Also, you
Oxymoron wrote:
I think you're looking for refactoring features, in this particular
case, a compose method/function refactor.
Generally, generic editors will have trouble doing this right since it
requires some inferencing capability on the selected code, your best
bet is probably googling
Emad Nawfal (عماد نوفل) wrote:
Hi Tutors,
I've never had a situation in which this was useful for me, but I'm just
curious.
If there is a text file that has a list or number of lists in it, is
there is a way to read the lists in the file as lists, and not as a
string. Sample file attached.
Bala subramanian wrote:
Hello all,
query 1) How should i overwrite the input file
I want to open 5 files one by one, do some operation on the lines and
write the modified lines on the same file (overwritting). Can some
please tell me how to do it.
import fileinput
pat1= R
pat2=U5
pat3=A3
A.T.Hofkamp wrote:
write the output to a temporary file while reading the input, then
rename the temporary file.
This I believe is what the fileinput module does when you use it with
the inplace parameter set to 1.
--
~noufal
http://nibrahim.net.in/
Eric Dorsey wrote:
I am trying to teach myself Linux, and so I'm running Ubuntu (Gutsy
Gibbon) as a virtual machine. I went to terminal, started up Python and
realized it was version 2.5 so I thought I'd just upgrade to 2.6.1 After
doing some Googling around, it seems that Ubuntu is highly
bob gailer wrote:
2) looks bad and is ugly are emotional responses. What are you
feeling and wanting when you say those things?
It's hard for me to qualify really but my general idea of list
comprehensions is that they transform and filter lists creating other lists.
For instance, I'd
Hello everyone,
What is the pythonic was of selecting the first element of a
list matching some condition?
I often end up using
[x for x in lst if cond(x)][0]
This looks bad and raises IndexError if nothing is found which
is ugly too.
Thanks.
--
~noufal
Wayne Watson wrote:
Is it possible to do as in Subject on Win XP? Say, 2.4 and 2.5.
--
You can create virtual installations of Python which might work for you.
I do it for custom package installation etc.
The virtualenv pakcage is what I use.
http://pypi.python.org/pypi/virtualenv
--
Jim Morcombe wrote:
I want to write a program that helps teach students how to draw ray
diagrams for lenses and mirrors. Vpython seems to be used for a number
of physics simulations, but may be overkill for my application.
Although there are a few 3D things I would like to do, most just
Morgan Thorpe wrote:
Hello.
I'm am very new to the whole programming sence.
Welcome. :)
I am trying to catch on but as soon as i want to write a program i've
been told to use like 'notepad' in windows XP and save it as a .py file
i have gotten this far. Am i wrong so far?
It's fine so
amit sethi wrote:
Hi list ,
Can someone give me an idea about the audio libraries in python . I
tried using pymedia . What are the options available .
These may be a little heavy duty for you but they do audio.
0. Pyglet (Full windowing and multimedia library) - http://pyglet.org/
1.
Kent Johnson wrote:
On Wed, Jun 11, 2008 at 3:58 PM, Stephen Nelson-Smith
[EMAIL PROTECTED] wrote:
Hello,
This has to include resources which have not been visited, as the
point is to clean out old stuff.
wouldn't a 'find' for files with a an ancient access time be a better
way of finding
Fiyawerx wrote:
I've been over google for hours now, and I'm sort of at a lull in my
learning, as I don't really have a current goal. I know I could set
some easy goal like to learn a specific function or feature, but I still
have a hard time with that approach also. I was wondering if
Hello everyone,
This is probably something simple but I can't seem to find a way to
format a timedelta object for printing? I need to be able to print it in
a HH:MM:SS format but without the microseconds part (which is what you
get if you str() it).
Any pointers?
Thanks.
--
~noufal
wormwood_3 wrote:
Now, what I would like to do is instead send this output to one or
more of the standard linux log files. First though, I am wondering, what
is the standard procedure in a case like this?
You can either have a config file to specify a log area or use syslog to
do the
Kent Johnson wrote:
Kamal wrote:
hello everyone,
Is there a method in Python which does what
setInterval('someFunction()',5000) does in Javascript.
Basically, I want to call functionOne() every x minutes, and wondering
whats the best way to do it.
You can also look at the sched module
bhaaluu wrote:
On 10/2/07, Kent Johnson [EMAIL PROTECTED] wrote:
traceback.print_stack() prints the stack trace to the current point of
execution. No forced error or drama needed :-)
Kent
Exactly how is this used, please?
Traceback (most recent call last):
File print_stack.py, line
János Juhász wrote:
Dear Tutors,
I would like to make a new class instance, where
the intance attributes coming from the kwargs hash.
class ADUser:
def __init__(self, **kwargs):
for key in kwargs.keys():
self.key = kwargs[k]
a = ADUser(name='papa')
Your
Robert Jackson wrote:
I'm trying to get some pretty colored output for a Linux console / terminal
window. Google searches only reveal the curses module to colorize output.
Is there a simpler way? Curses seems to be FAR too powerful for what it is I
want to do (simply to colorize a few
Fangwen Lu wrote:
Dear all-
I want to do some loops. Each loop will generate a tuple. Eventually I
want to put tuples together in a higher level of tuple. Do you know how
to do this?
Say a=(1,2,3), b=(4,3,2),c=(9,5,6). I want to get a tuple as ((1,2,3),
(4,3,2),(9,5,6)).
If
wormwood_3 wrote:
Hello all,
I am working on a very simple CGI script. The site I want to use it
on is a shared linux host, but I confirmed that .py files in the
right dir with the right permissions and shebang execute just fine,
Hello World sort of tests were successful.
Those are the first
bhaaluu wrote:
Can you explain how this works? How would this be written in
a conventional way?
I'm not sure if this is addressed to me but I'll reply anyway. :)
foo = [1,2,3,4,5,6]
[(foo[i],foo[i+1]) for i in range(0,len(foo),2)]
range(0,len(foo)) would create a list of consecutive numbers
Fangwen Lu wrote:
Dear all-
If I have an array array([1, 2, 3, 4, 5, 6]), and I want to get
((1,2),(3,4),(5,6)). What should I do?
This seems to work although I'd like comments from the more experienced
Pythonistas out there.
foo
[1, 2, 3, 4, 5, 6, 7, 8, 9]
[(foo[i],foo[i+1]) for i
林培恒 wrote:
On Mon, 24 Sep 2007, Terry Carroll write:
My math is rusty. Is there a concept of greater than
or largest in complex numbers on different axis? Which
is larger, 4+2i or 2+4i?
In fact, complex numbers can not compare directly. People always compare
complex numbers with their
Tim wrote:
Hello,
I have a print statement where I use concatenation of variables with + to
avoid extra whitespaces. The variables are mixed (float/int).
How can I convert them all to strings to have a clean print statement?
example
print str(var1)+and this +str(var2)+needs to check
dave selby wrote:
Can anyone tell me where the documentation for pythons xf86misc module
is, ie what methods are avalible ?
I've not used this module you mention myself but if it's got docstrings
and inline documentation, you can get help by importing the module and
then doing a
Hello everyone,
I have a question regarding the use of some decorators.
In my program, I have functions like this
def process_command_line(...):
...
def run_command(...):
...
def update_db(...):
...
These functions are for various stages of the program. Now, I need
to
Kent Johnson wrote:
Noufal Ibrahim wrote:
My question is whether this is a valid use for a decorator and whether
this kind of usage is pythonic. If not, are there any better ways to
do this?
It seems like a bit of a hack to me. I guess you change the way you call
run_command to include
Rikard Bosnjakovic wrote:
On 10/09/2007, Lawrence Barrott [EMAIL PROTECTED] wrote:
is it possible to run other non-python files using python such as .exe or
other files.
Have a look at os.system().
Or more generally, the subprocess module.
--
~noufal
chinni wrote:
In Advance Sorting by giving the keywords to sort the list.But, iam
getting the fallowing errors
x = ['srikanth', 'kumar', 'muppandam', 'will', 'be', 'a']
x.sort(key=len)
Traceback (most recent call last):
File stdin, line 1, in ?
TypeError: sort() takes no
[EMAIL PROTECTED] wrote:
Hi!
What's the point in having a server app between the user frontend and
a database backend? (As is the case of TinyERP wich is writen in
python-GTK)
Can't simillar functionality be achieved without that server? What are
the main pro's and con's?
Off
Ara Kooser wrote:
Hello all,
I am working on trying to understand classes by creating a
character generator for a rpg. I know I am doing something silly but I
am not sure what. When I run the program I and type no when prompted I
get the following message:
Traceback (most recent call
János Juhász wrote:
Dear Tutors!
I know a python list is a mutable object.
array = [1,2,3,4,5]
So I can modify any item in it.
for index in range(len(array)): array[index] *= 2
...
array
[2, 4, 6, 8, 10]
So I typed this:
for item in array: item *= 2
...
array
[1, 2, 3, 4, 5]
Vincent Gulinao wrote:
Sorry, I just started experimenting on Python classes...
Is there any way a reference to a class attribute ([class].[attribute])
be treated like a method ([class].[method]())?
I have a class with DB component. Some of its attributes are derived
from DB and I
Stephen McInerney wrote:
Hi Alan,
[..]
How can we address that reasonably and succinctly without polluting the doc
with language-migration-specific details, that is a worthy question... I
believe we can do a better job simply by grouping and highlighting related
alternative concepts like I
Hello everyone,
I've come across a situation which is somewhat confusing to me.
I googled for some details and came across another email thread on
this very list but couldn't really glean a solution out of it.
I have a program (a compiled binary) for which I need to write a
wrapper (in
Eric Brunson wrote:
Noufal Ibrahim wrote:
[..]
def createSignalDelegator(p):
def sighandler(signal,frame,pmake = p):
os.kill(pmake.pid,signal)
return sighandler
pmake = subprocess.Popen(pmake_cmd, bufsize = 1, stdout =
subprocess.PIPE, stderr = subprocess.STDOUT
Beanan O Loughlin wrote:
hi all,
I am new to python, and indeed to programming, but i have a question
regarding correlation matrices.
If i have a column vector
x=[1;2;3;4;5]
and its transpose row vector
xt=[1,2,3,4,5]
is there a simple way in python to create a 5x5 correlation
kevin parks wrote:
With sincere apologies for such a basic question, and one i will
admit that i asked once before, moons ago. But even after googling
around a bit i don't understand what the right answer is, or if i
once did, can't recall it now..
[..]
For some reason i feel like i
Hello everyone,
I seem to recall that there was a site (on the python wiki IIRC) that
listed relatively simple python bugs (in the actual C code inside the
interpreter) that needed to be fixed. It was advertised as good starting
point for novices. I can't seem to find it. Does anyone
Hello everyone,
A couple of months ago, I had posted on this list asking about the
usefulness of such a program. Something similar to TclTutor
(http://www.msen.com/~clif/TclTutor.html) for python.
I've spent some time on this and have come up with a crude first
version. I'd appreciate if
OkaMthembo wrote:
hi pythonistas!
this is my first post. please could you tell me which is the best
lightweight python web framework? also, which is the best templating
language for python? (which can handle other data formats in addition to
text). so far im lured by Cheetah, although i
Kopalle Narasimha wrote:
Hello, Everyone.
I have a strange problem with floating point numbers. Please help me.
I tried the following at the python prompt:
Case 1:
4.5/2.0 #Gives quotient
Answer: 2.25
Case 2:
4.5%2.0 #Gives Remainder
Answer: 0.5
I don't think it's
Asrarahmed Kadri wrote:
Hi,
I want to extract hh:mm:ss from below mentioned code:
import datetime
t = datetime.datetime.now()
print t
2006-11-16 16:59:02.843000
How to do it?
Did you read the documentation and try something out before posting this
question on the list?
--
Asrarahmed Kadri wrote:
Hi Folks,
I have a textbox and a button (in tkinter). What I want is the following
functionality: The user enters a number in the text box and presses the
button. The event will call a function called adder and when the user
enters another value and
Noufal Ibrahim noufal at airtelbroadband.in writes:
Greetings everyone,
I'm using the python standard logging package for a personal project
of mine and have initialised it like so.
logger = logging.getLogger(pydagogue)
handler = logging.StreamHandler()
handler.setFormatter
Greetings everyone,
I'm using the python standard logging package for a personal project
of mine and have initialised it like so.
logger = logging.getLogger(pydagogue)
handler = logging.StreamHandler()
handler.setFormatter(logging.Formatter([%(levelname)s]%(pathname)s:%(lineno)d
%(message)s))
Greetings everyone,
I'm working on a little project that's similar to tcltutor for python.
I have a string which has some python code. I compile and eval this
to get the output. So far so good. However, when this happens, the
evaluation is happening in the current namespace so I'm afraid of
Greetings everyone,
I'm working on a little project that's similar to tcltutor for python.
I have a string which has some python code. I compile and eval this
to get the output. So far so good. However, when this happens, the
evaluation is happening in the current namespace so I'm afraid of
max . wrote:
first off i just started looking for Tkinter tutorials but havent found
much and what i have found was not very good if anyone knows og any
Tkinter tutorials pleas let me know
Try this for a good tutorial
http://www.pythonware.com/library/tkinter/introduction/
Peace.
Greetings all,
A friend here is trying to debug a rather badly written python program
which spawns off lots of threads here and there. Are there any
frameworks that I can reccommend that would ease his pain?
On a more general note, it seems rather strange that I can't quickly
google and
On Wed, April 12, 2006 2:42 pm, Kaushal Shriyan wrote:
list[:] -- Does this mean its list[0:0]
['a', 'b', 'c', 'd', 'e', 'f'] I didnot understood this
I remember you once asked another question related to sequence slices and
I mentioned the effects of slicing with no indices. You sure
On Wed, March 29, 2006 4:35 am, Anna Ravenscroft wrote:
There are several of us on the edupython list who want something like this
but it hasn't (to my knowledge) been created yet. The best things out
there
so far, are livewires, guido von robot, and rur-ple. If you're
interested
in
On Mon, March 27, 2006 4:39 pm, Kaushal Shriyan wrote:
Hi
I am a novice in Python, Which is the best source of learning python
for a beginner
If you're already a programmer, then the python tutorial at
http://docs.python.org/tut/tut.html + a working python installation is
enough IMHO.
If
Greetings all,
Are there any programs for python that offer an interactive tutorial?
Something on the lines of the builtin emacs tutorial (which is
basically just a buffer that tells you to try this and try that with
itself) or the Inkscape tutorial (which is an SVG document that comes
along
On Wed, March 22, 2006 12:11 pm, Kaushal Shriyan wrote:
Hi
I am new to python and I am going through the URL
http://www.ibiblio.org/obp/thinkCSpy/index.htm, At the moment
I am going through the Chapter 7 Strings, I am stuck with understanding
slice which is a part of a String, I am not able
On Fri, March 17, 2006 1:06 pm, fortezza-pyt wrote:
If there a semi-standard way to test if a file system has been mounted
or not using Python? In the Linux command line, I can type mount and
see all mounted file system, and then see if the one I am looking for is
in the list. While I could
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