Programming :: Python: Dynamically Create A List Within A Dictionary?

Jul 9, 2011

how to dynamically create a list within a dictionary using Python.

Code:
dates = defaultdict(int)
array = []
...
dates[m.group(3)] = array.append(date)
dates[m.group(3)] = [array.append(date)]
dates[m.group(3)].append(date)

None of the above works and I've tried everything I can think of.

View 3 Replies


ADVERTISEMENT

Programming :: Python: Create Variables From Dictionary Keys?

Jan 31, 2011

I have a situation where i need to turn a dictionary entry into a variable. I think i'm close, but am getting a syntax error (quoted at bottom)...

Code:
## Parameters.py
def dictionary_function():
p = {}
p['param_1'] = 10

[Code].....

View 5 Replies View Related

Programming :: Unable To Dynamically Create An Array Of Params For Execv In C

Jan 6, 2011

I haven't programmed in C for a while, so I am trying to remember certain aspects of syntax. I have a program that will fork and exec other programs. Those programs will be specified on the command line as follows:

./main "prog1 arg arg ..." "prog2 arg arg ..."

Here is the main snippet:

int countChar(char* s, char c)
{ int cnt = 0;
int len = strlen(s);
for(int i = 0; i < len; i++)

[code]....

The highlighted line is the problem. I get this error:

dualstarter.cpp:58: error: initializer fails to determine size of 'params'.

Right now I am thinking of creating an array with the specified size and simply copying the required string into it, but it just seems like there is an easier way.

View 9 Replies View Related

Programming :: List Sorting In Python?

May 10, 2011

I have a list of list and I'd like to sort the list according to the last value of each row.

Let's say we have the list

L1 = [ [1,2] , [4,6] , [78,-3] ]

I wish to get

L2 = [ [78,-3] , [1,2] , [4,6] ]

Is there a simple way to do that in python?

View 4 Replies View Related

Programming :: Take A List From A File And Use It In A For Loop In Python?

May 11, 2009

so far I have this

list = open('list.txt')
for x in list:
list.read(x)

View 3 Replies View Related

Programming :: Jquery To Dynamically Create Cookies Using The Jquery Cookie Plugin?

Jul 27, 2011

I am learning jquery and I think for the most part I have the basics down. One of the things that I am attempting to do is to create cookies using the jquery cookie plugin. The idea is that I want to replace as much of the javascript in my code as possible with jquery to see the difficulties in doing it one way or the other.

As easy as it seems to be able to create a cookie using the plugin I have not been able to do some successfully and the only thing that I can think of is the way that I am submitting my parameters is not correct. So with that, here is is my code:

[Code]...

View 5 Replies View Related

Programming :: Python: List Running Audio Processes?

Jul 19, 2010

I am trying to get a list of running processes using audio (using gstreamer), just like in gnome-volume-control, under applications, but have so far been unsuccessful in finding anything in either the gtk or gstreamer library, anyone out there who can point me in the right direction?

View 1 Replies View Related

Debian Programming :: Searching For A List Of Strings In File With Python

Oct 14, 2013

I'm trying to search for several strings, which I have in a .txt file line by line, on another file.

So the idea is, take input.txt and search for each line in that file in another file, let's call it rules.txt.

So far, I've been able to do this, to search for individual strings:

Code: Select allimport re

shakes = open("output.csv", "r")

for line in shakes:
    if re.match("STRING", line):
        print line,

How can I change this to input the strings to be searched from another file?

So far I haven't been able to.

View 3 Replies View Related

Debian Programming :: Return How Many Items Occurs In List (Python)

Jan 29, 2014

I going through the Python course on Codeacademy. I have some trouble understanding what I'm doing wrong. This is my code below:

Code: Select alldef count(sequence, item):
    total = 0
    for x in sequence:
        return x
        if x in sequence:
            total += 1
    return total
print count([1,2,1,1], 1 )

The code gives me an error: "Oops, try again. Your function fails on count([1],7). It returns 1 when it should return 0."

It should be outputting 3 because 1 occurs 3 times in the list.

View 7 Replies View Related

Programming :: Python Error - List Index Out Of Range (Web Scrapper)

Feb 18, 2011

Having a bit of an issue with Python while trying to write a script to download every rar file on a webpage. The script successfully downloads any link that doesn't contain any spaces, etc. But when it hits a url like: [URL] (Classical Spelling).rar. It fails...I'm sure this is something simple, but I'm so new to python I'm not sure what to do!

Code:
import urllib2
import os
os.system("curl [URL] -i rar|cut -d '"' -f 2 > temp.out ")
infile =open('temp.out', 'r')
for url in infile:
print url
#url = "[URL]"

#url = target
file_name = url.split('/')[-1]
u = urllib2.urlopen(url)
f = open(file_name, 'w')
meta = u.info()
file_size = int(meta.getheaders("Content-Length")[0])
print "Downloading: %s Bytes: %s" % (file_name, file_size)
file_size_dl = 0
block_sz = 8192

while True:
buffer = u.read(block_sz)
if not buffer:
break
file_size_dl += block_sz
f.write(buffer)
status = r"%10d [%3.2f%%]" % (file_size_dl, file_size_dl * 100. / file_size)
status = status + chr(8)*(len(status)+1)
print status,
f.close()

View 7 Replies View Related

Programming :: C++ Or Python - Create 3D Animation ?

Jan 25, 2009

I want to create 3D animation and also make some big programs. Is python capable of that? or should I stick to C++?

View 3 Replies View Related

Programming :: Create Refactored Wx.python?

Apr 30, 2010

I'm starting with menus, but I can easily adapt it to everything else. I just don't see the data structure yet.Here is my base file:

Code:
#!/usr/bin/evy python
'''create basic window, with a button, status/menu bar and dialog boxes'''

[code]....

View 1 Replies View Related

Programming :: Python - Using Input To Create New Instance Of A Class?

Apr 6, 2011

The intent here takes a little background info.I'm trying to make a basic inventory control to reinforce my studies. It will have a while loop that displays amenu for add, edit, view, and quit. Lets assume the following:

Code:
class inventoryItem:
itsDescriptiveName = None

[code]....

View 5 Replies View Related

Programming :: Use Glade With C/python To Create A Graphical User Interface

Jan 30, 2011

I am working with ubuntu (linux) and have to create a graphical user interface. The GUI is a 2-D plot that have to plot a point. The point ( x and y co-ordinates) are not hardcoded, and are coming from another file (another piece of code written in c / python). I was thinking to use Glade with c/python to create this. But, I am not sure how to start with this.

View 4 Replies View Related

Software :: Dynamically Determining The Number Of Check List In Zenity?

Apr 29, 2009

In my project i cannot determine the number of check list initially. I will know dynamically during execution.How to specify the number of check list dynamically in zenity.

View 5 Replies View Related

Programming :: Create Cvs From List Text File

Dec 21, 2010

I have a file with 5000 lines. it is a list of books authors, series and titles. all lines start with the author names, than there is a dash (-) than the series name, a dash again and the title of the book.

The problem I encounter is that sometime there is a series, sometime not, and as I try to enter this list in a database, I wanted to create a cvs file to import into mysql.

ex:

The best would be to be able to add in the second line, a "space dash space" just after the author name, but how to make sure it does not do it to the first line as well.

If I could separate all line with 2 dash, (grep ?) then I would be able to do a simple replace, and change the single dash into two.

View 2 Replies View Related

General :: Windows - Convert Aspell Dictionary To Simple List Of Words?

May 5, 2010

I want to get list of all words from aspell dictionary.
I downloaded aspell and aspell polish dictionary, then unziped it using code...

It is connected to the declination and conjugation. How can I add to the first list all forms (with all corresponding suffixes as defined in .dat file ) ?

BTW: I need this list to spell-checker jazzy.

View 1 Replies View Related

Programming :: Create An Array That Will Allow To Print A List After Selection?

Oct 18, 2010

I am trying to create an array that will allow me to print a list after selection such as:

1) Location A
2) Location B
3) Location C

Would you like to print selected locations? Print I have no idea how to approach this problem and don't know whether Perl, Bash or shell script would be the most useful in this particular situation.

View 5 Replies View Related

Programming :: Create A Link List Is Giving An Error

Sep 23, 2010

I wrote a program to create a link list

Code:
#include <stdio.h>
#include <stdlib.h>
struct node {

[Code].....

View 4 Replies View Related

General :: Dynamically Create/delete Device Nodes By Driver?

Apr 15, 2010

I'm a starter here in linux, I have written a driver code and in that, I register my character devices by passing 0 for the major number.

To set up I used to use mknod command from terminal to create node,

Is there any method to create node dynamically from driver code during initialization and delete them at cleanup time?

View 1 Replies View Related

Programming :: Create A Script That Returns A List Of The Users Who Have Never Changed Their Password From /etc/shadow

May 17, 2011

I need to create a script that returns a list of the users who have never changed their password from /etc/shadow. As I know on linux there is a command "chage" used for find last password change.

View 2 Replies View Related

Ubuntu :: Install A French-English Dictionary For Gnome Dictionary Applet?

May 3, 2010

how i can install a french english dictionary for the dictionary applet in gnome

View 1 Replies View Related

Programming :: Make Python Programs Run Without Entering The Command Python?

Mar 22, 2009

I want to be able to do

sudo ./program.py

instead of always having to do

sudo python program.py

What do I need to change?

View 5 Replies View Related

Programming :: Python - Get Text File Data Into An Array On Python?

Nov 30, 2009

I've already used line split stuff to transform my data into something like this in a text file:

Code:

['1', '1', '3', '20.7505207']
['2', '1', '3', '23.0488319']
['3', '1', '3', '-1.5768747']
['4', '1', '3', '-26.4772491']

[code]....

How can I get this on a python program so I can manipulate it as an array?

View 3 Replies View Related

Programming :: Dynamically Loading Libraries In GNU?

Oct 22, 2010

This post isn't really asking for a tutorial, but rather asking for some ideas. I've come up with a few ideas, but they seem cumbersome and unnecessary, so I was wondering if someone with more experience than me could out. Also, my explanations suck, but I'll try to do my best. So say I have an executable called X. At some point during its execution, X loads and uses (using dlopen and dlsym) a library called Y. In Y, there a bunch of functions that call the function called, for example, void *special_malloc (size_t). These functions come from another linked library (linked during compilation) called Z. Problem is, special_malloc contains some static variables within its scope, and when those variables are reset midway through a program, an invalid free occurs (special_malloc uses garbage collection). Now, what I want to happen is that whenever lib Z calls special_malloc, it instead calls the special_malloc defined in the executable X, so that these static variables are retained. Keep in mind that I have control of the Z library, meaning I can edit the source to fit my needs.

View 2 Replies View Related

Programming :: Bash - Read The Array Dynamically?

Sep 24, 2010

Code:

test=(1 2 3 4 5)
for car in ${test[@]}
do
echo "Element : $car"

[code]....

if variable $car equals 1, new element is added "6" to an array. But i don't know why when i am printing all elements of this array (echo "Element : $car") this element ("6") is not mentioned, but if i make a command which check an amount of contained elements by array it will be 6 elements.

View 14 Replies View Related

Programming :: How To Call Array Dynamically Into Script?

Jul 20, 2011

I have a script which takes an array as an input to the file.ex: test.ksh -l <array_value>

Every time I dont get the same array name.EX: test.ksh -l x ; where x="a b"test.ksh -l y ; where y="c d"

I store the value I get in l in varaible myLvalue.Now indise my Script I want to run a for loop for thevalue I get in -l.If I write the for loop as below. I'm getting value x.However I'm expecting the loop to run for a and b.

View 5 Replies View Related

Programming :: Java : Use Dynamically Loaded Classes?

May 15, 2010

I'm new to Java.
I'm trying to use some dynamically loaded classes in my application.
The application doesn't know those classes , Just it try to load a class by name that its name came from input.
It doesn't know class (So I can't use casting) but just needs to call some methods of that class (every class should have that methods).
I thought about interfaces but I don't know how.
How can I call those methods?

View 1 Replies View Related

Programming :: Link One Library Statically Others Dynamically - Gcc - G++

Jul 6, 2011

I would like to make gcc to link one lib (pthread in the example) statically, and the rest dynamically.

(See the example .c file at the end of this post.)

compiles fine, but every lib is linked dynamically.


Now every lib is linked statically

Not a dynamic executable

I would like to link the libpthread statically and the rest dynamically. Is it possible?

[url]says if I give the full path to the .a lib then it will be linked statically:

So for me it does not work.

On other sites I found that I should use -Wl,-Bstatic -lpthread -Wl,-Bdynamic, but it also doesn't work:

So, how can I do that?

Machine: Linux 2.6.16.60-0.27-bigsmp #1 SMP Mon Jul 28 13:06:32 UTC 2008 i686 i686 i386 GNU/Linux SLED 10

As an example I used a little demo program from [url]

Here is the code:

View 4 Replies View Related

Programming :: Sorting A Dictionary File?

Nov 1, 2010

I have this dictionary file that has this format:

SUBSTITUTE_VALUE, Real Value
SUBSTITUTE_VALUE_2, Real Big Value
SUBSTITUTE_VALUE_HECL, Hardware Abstract
SUBSTITUTE_V, Valley Mem

I want to sort this file so the LONGEST Substitute Values are listed at the top ( so SUBSTITUTE_VALUE_HECL would be first in the list). Obviously I want to keep the related values tagging along with them, so the whole first line would be
SUBSTITUTE_VALUE_HECL, Hardware Abstract

Playing with sort This has me pretty close: sort dict.file -k1.1n,1

View 2 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved