text stringlengths 256 65.5k |
|---|
I'm using declarative SQLAlchemy and I have three models: Role, Permission, and RolePermission. In my Role model, I have the following:
class Role(Base):
name = Column(u'NAME', VARCHAR(50), nullable=False, unique=True)
permissionLinks = relationship(RolePermission, backref="role", order_by=name)
permissions... |
Create a VBO containing all of the sprite's frames, and make your glDrawArrays call with the appropriate (frameNumber * 4) in the first param.
If you want to get even more clever about it, you could make it a static VBO and do your billboarding formula in your vertex shader. The sprite origin would then become a shader... |
Of particular interest to me has been the appearance of PEPs for Abstract Base Classes (PEP 3119) and the more exhaustive PEP 3124 which covers “Overloading, Generic Functions, Interfaces, and Adaptation.”
Both of these aim to provide ways of saying “this is file-ish”, “this is string-ish,” without requiring subclassin... |
A short explanation of map which saves me from having to litter the code below with comments:
The map function applies its first argument (usually a function, but it can be a class or any other callable thing too) to each value in the second argument and returns the resulting list. Think of it as transforming each elem... |
I'd like to test the Unicode handling of my code. Is there anything I can put in random.choice() to select from the entire Unicode range, preferably not an external module? Neither Google nor StackOverflow seems to have an answer.
Edit: It looks like this is more complex than expected, so I'll rephrase the question - I... |
I’ve written about plenty of the keyword research tools I’ve written and about keyword research ideas/strategies I’ve had on this blog. I’ve written about it so much because it’s really the foundation of search marketing strategy. Without understanding how your audience is looking for your site, you have no real hope o... |
Christophe C
Paquet debian et bug sur fichier postinst
Bonjour,
J'ai un bug sur un paquet debian, plus exactement sur son fichier postinst. je m'explique :
Le fichier postinst comprend :
#!/bin/bash
ps -e
sudo ln -s -f /usr/bin/plank-config.dockitem /home/chris/.config/plank/dock1/launchers/plank-config.dockitem
Si je... |
I'm trying to time some code. First I used a timing decorator:
#!/usr/bin/env python
import time
from itertools import izip
from random import shuffle
def timing_val(func):
def wrapper(*arg, **kw):
'''source: http://www.daniweb.com/code/snippet368.html'''
t1 = time.time()
res = func(*arg, **... |
I'm using Ubuntu 12.10. Yesterday I noticed that software-properties-gtk does not work anymore. I have no idea why and what to do. When I start via Terminal I get the following output:
chocobai@pfubuntu:~$ software-properties-gtk
gpg: /tmp/tmpgkhlnl/trustdb.gpg: trust-db erzeugt
Traceback (most recent call last):
File... |
Jx7
Re : [script] Télécharger de nombreuses quotidiennes de canal+ (suite)
J'ai l'impression que tu as un problème de droits d'écritures.
Hors ligne
Jx7
Re : [script] Télécharger de nombreuses quotidiennes de canal+ (suite)
Où as-tu placer le script?
Hors ligne
Jx7
Re : [script] Télécharger de nombreuses quotidiennes d... |
This is not too bad if you set it up as a discrete Markov chain. Let the different possible states of the game be "S" (for start), and then 1, 2, 3, 4, 5, "6/A" (for accept). Start means you failed to get the monotone run of numbers and had to start over from scratch at the beginning of the game. Accept means you got t... |
g_barthe
interface python et apprentissage boa constrictor
Bonjour,
Je voudrais commencer à developper qq applications (avec interfaces graphiques) en python (pour windows et linux). Je recherche donc un éditeur qui permettrait de realiser l'interface de maniere simple et non en code pur. J'ai bien trouvé "wxglade" mai... |
I am trying to add the profile data inside the UserResource but I cannot find the way to do it.
I tweaked a little the code found on the docs, like this:
class UserResource(ModelResource):
profile = fields.ForeignKey(UserProfile, 'profile', full=True)
class Meta:
queryset = User.objects.all()
re... |
#8526 Le 21/02/2013, à 22:33
The Uploader
Re : Topic des Couche-Tard (cinquante-sept)
Pas chez moi.
Passer de Ubuntu 10.04 à Xubuntu 12.04 LTS
ASUS N56VV (UEFI + GPT, Core i5-3230M @ 2.60GHz, Intel HD4000 + GeForce 750M, 12 Go de RAM, SSD 1 To)
Système principal : Archlinux (amd64), avec KDE
Système oublié la plupart d... |
Web Client Programming in Python
by Dave Warner
06/21/2000
Web client programming is a powerful technique for querying the Web. A web client is any program that retrieves data from a web server using the Hyper Text Transfer Protocol (the http in your URLs). A web browser is a client; so are web crawlers, programs that ... |
I recently assembled a new desktop with an ASUS PCE-N15 wireless network adapter and my home wireless network is detected and I am able to connect to it and even access the Internet.
However, after little time I lose the Internet connection, not the wireless connection to the home network, and have to manually disconne... |
pops
logiciel d'animation en pixel art
Bonjour,
Je voulais vous présenter un petit logiciel d'animation en pixel art sur lequel je travaille depuis un peu plus d'un mois.
C'est encore très sommaire, mais il commence a être utilisable :
On peut dessiner avec des couleurs indexées, animer, il y a quelques brosse et on pe... |
The following code works in the Python interactive shell:
import urllib2
result = urllib2.urlopen("http://www.google.com/")
and gives a 200 result.
If I run the same code in an AppEngine app running locally with the development server, it fails with the following error:
URLError: <urlopen error An error occured while ... |
I am new to Django and following several tutorials. I created a separate app for functional testing. I also setup a postgres DB engine for my prod DBMS but for testing I'd like to use SQLite3 in memory. Could someone tell me how to override the prod DB with another settings.py file? Where would I put the override file,... |
How to distribute English alphabet letters among Boggle game dice? How to make rolling for example letter "A" more often than others? How to choose how many copies of each letter to make, and how many copies of them to put on one dice? Can you please answer to these questions?
I think the question you're trying to ask ... |
PHP
multichild — 2014-04-24T07:15:23-04:00 — #1
Hi all,
I am creating a contract database, and in the bit I am at now, the users are being created and they also need to be connected to the corporations that have already been created.
The form I have is i am using the same form to add and then if needed edit the users, ... |
DJ Raging-Bull
Carte PCMCIA WiFi non détecté sur ThinkPad 600X
Bonjour,
J'ai récuperé un IBM ThinkPad 600X équipé d'un Penium III @ 500 MHz et de 446 Mo de RAM, le disque dur fait environ 12 Go et il dispose d'un lecteur CD.
J'aimerais le refiler à ma mère qui s'en servirait pour de la bureautique de base. Je lui ai do... |
Stability provisional
Maintainer Alberto Ruiz (aruiz at um dot es)
Safe Haskell None
size :: Matrix t -> (Int, Int)
disp :: Int -> Matrix Double -> IO ()
zeros :: Int -> Int -> Matrix Double
ones :: Int -> Int -> Matrix Double
diagl :: [Double] -> Matrix Double
row :: [Double] -> Matrix Double
col :: [Double] -> Matrix... |
I have a Django based CMS that uses Django's sites framework and Nginx/Apache/mod_wsgi virtual hosts to run a number of websites on different domains. We're assessing other options for a Django stack and have the CMS running with a single site on a new server with Nginx proxying to Gunicorn (gunicorn_django, specifical... |
I have the following code with urllib2 which prints HTTP Error 403: Forbidden but if I use urllib instead to fetch url, I don't see any error and I do get a list of my friends. The access token used is same in both the cases.
url = 'https://graph.facebook.com/me/friends/'
params = {'access_token': 'a valid access-token... |
I have a weird problem, I want to add a global query using context processors. This is how I did it by following:
made a processor.py in my app as such:
from myproject.myapp.models import Foo
def foos(request):
return {'foos': Foo.objects.all()}
and at the end of my setting.py I have added this:
TEMPLATE_CONTEXT_P... |
I am using my custom filter. So in this search there are many checkboxes (have city name) and user selected some of them the post show the search result base on the checkbox.First i sotre the city/state name by using the add_post_meta
add_post_meta($post_id, 'post_state' , $state, true);
So after that when user filter... |
I installed a new hard drive that will be used for additional storage only. I have followed these instructions on Ubuntu pages to partition it, but when I follow the instructions to automatically mount it, I get lost. It tells me to enter a new line in fstab but when I enter the line, there is no way to press enter and... |
(I haven't used compiz in a while, and thought I'd like to try it again, hopefully in KDE)
When I try to start ccsm I get this message:
Traceback (most recent call last): File "/usr/bin/ccsm", line 96, in <module>
from ccm.Constants import Version, ConfFile ImportError: cannot import name ConfFile
(note: this cc... |
I have a python script that successfully loads a csv file into a 2d numpy array and which then successfully extracts the value of a desired cell based on its column and row header values. For diagnostic purposes, I have the script print the contents of the data matrix before it is put into a numpy array. The script wor... |
La programmation orientée objet (3/3)
Très bien, maintenant vous savez créer vos objets, mais savez vous ce qui se déroule réellement en mémoire avec vos objets ? Même si cette partie est théorique et assez "bas niveau" (c'est à dire qu'on se soucie de manière "importante" du fonctionnement de l'ordinateur et de ses co... |
jopiou
Probleme AMSN installation
Bonsoir voila mon souci je cherche a installer amsn car j'ai pu lire que l'on peut utiliser les webcam avec ^^
enfin voila je cherche le moyen de le trouver deja je sais pas trop ou l'avoir si vous pouviez m'aider a le chercher et le mettre en place je serais trés content
je vous remer... |
(I asked this question in stackoverflow.com, but I am now thinking my mistake may be mathematical rather than programming).
I am simulating geometric brownian motion, using closed-form solution for the value after an arbitrary (not necessarily infinitesimal) step dt. My drift = 0, standard deviation = 1, initial value ... |
My app name is search_keywords. As on creating this app, I wiil have one file called models.py in which I have written this piece if code :
from django.db import models
class Keywords(models.Model):
file_name = models.CharField(primary_key=True, max_length=100)
frequency_count = models.IntegerField()
then add... |
I'm observing a strange memory usage pattern with python strings on Freebsd. Consider the following session. Idea is to create a list which holds some strings so that cumulative characters in the list is 100MB.
l = []
for i in xrange(100000):
l.append(str(i) * (1000/len(str(i))))
This uses around 100MB of memory a... |
Phoenamandre
Re : Suivi des bogues d'Ubuntu 12.10
j'ai le même problème que toi avec mon dell xps !
autre bogue, si vous êtes touchés par un problème de maya qui ne veut pas démarrer
https://bugs.launchpad.net/maya/+bug/1047599
Hors ligne
vlotho
Re : Suivi des bogues d'Ubuntu 12.10
Salut j'ai une ribembelle de warning ... |
kevin54
Re : [ VOS SCRIPTS UTILES ] (et eventuelles demandes de scripts...)
@yvon22
Merci cela marche bien pour mes fichiers de + 2 jours.
Mais pour garder les 3 derniers dimanches, cela est possible avec cette commande ?
Hors ligne
Fenouille84
Re : [ VOS SCRIPTS UTILES ] (et eventuelles demandes de scripts...)
Voici u... |
bibichouchou
TVDownloader: télécharger les médias du net ! [2]
A k3c
j'ai fait les mêmes constats quand à l'utilisation du script de KSV.
le flux rtmp était bien utile car les séries n'étaient pas chiffrées. avec la version fragmentée, ce n'est pas le cas
ci-dessous une version corrigée de ton script pour tf1 et compag... |
I have the following C++ code:
Some_class * temp1 = findTemp1(...); // returns NULL or a valid pointer
Some_class * temp2 = findTemp2(...); // returns NULL or a valid pointer
Some_class * temp3 = findTemp3(...); // returns NULL or a valid pointer
Now I would like to count how many of these returned a valid pointer (0,... |
I have Xubuntu 12.04 installed. When I run any updates or installs, I do receive strange warnings touching "Linaro" and software-center is not able to run with following error:
:~$ software-center
ERROR:root:DebFileApplication import
Traceback (most recent call last):
File "/usr/share/software-center/softwarecen... |
Here's my ORM entity class. The primary key is composite cause 'id_string' may be the same for different users (identified by uid). One thing I understood from Postgres SQL error when creating a table based on this class (
ProgrammingError: (ProgrammingError) there is no unique constraint matching given keys for refere... |
grim7reaper
Re : /* Topic des codeurs [8] */
On va prendre une autre approche : vous me conseillez quoi pour commencer, dans un cas et/ou dans l'autre ?
Pour Haskell, le fameux Learn You a Haskell for Great Good! (une traduction existe, je ne sais pas ce qu’elle vaut), si tu veux approfondir il y a aussi Real World Has... |
GeoBases est un projet dont le but est de fournir des services et des possibilités de visualisation pour des données géographiques. En réalité cela fonctionne également avec des données non-géographiques, mais cela limite les possibilités de cartographie.
Le projet contient déjà des sources de données issues d'autres p... |
You might want to take a look at the Canari Framework (https://www.canariproject.com/4-3-transform-development-quick-start/). It's an awesomely simple transform development framework that let's you do some pretty rad things ;).
UPDATE 1:
Canari now has some additional support for complex field types. So far we've added... |
Can anyone provide an example of providing a jacobian to a leastsq function in scipy? ( http://docs.scipy.org/doc/scipy/reference/generated/scipy.optimize.leastsq.html#scipy.optimize.leastsq ) I can't figure out the method signature they want - they say it should be a function, yet it's very hard to figure out what inp... |
I have a list of items in a view called client_items. I want to be able to use the variable items_list`which is another view called edit_order in client_items. So is there a way to call the variable from a different view? (Import a variable from another view and be able to use this variable in the other) I cannot just ... |
I've created a few apps/pages however i recently created a new one and it wont display at all in Facebook (fine on mobile?). Its a simple page with html, Nothing special.
I'm using Google App engine as its not a paying job so the free https:// is helpful. I've used app engine before and it works fine with FB.
I created... |
I tried this:
import os
if os.system('somecommand') == 'output from command':
do_something()
But it didn't worked. How can I do it? What library should I use?
When I use solution with subprocess below I get this errorcode:
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python2.7/subproc... |
Advanced OOP: Multimethods
by David Mertz
05/29/2003
Introduction
This article continues a review of advanced object-orientedprogramming concepts. In this installment I examine multipledispatch, which is also called multimethods. Most objectoriented languages--including Python, Perl, Ruby, C++, and Java--areintellectua... |
From the looks of your code I assume that you are using this for a python script. Because of this, we'll have to proceed this way:
import time
now = time.ctime(int(time.time()))
print("the now time is ") + str(now)
Which, using your example timestamp, should give you the following output:
Thu, 28 Jun 2012 07:10:11 ... |
I want to plot some values representing visible satellites into a polar graph with Python and matplotlib. I have written some code following a matplotlib example, and the polar chart is represented, but given points are not plotted:
import matplotlib
from matplotlib.pyplot import figure, show, rc, grid
from math import... |
This blog post is part of series about AbsurdJS. I'll continue filling the library with small and self organized black boxes. In the last article we talked about creating a JavaScript router. This time we will go through the process of making Ajax requests.
Requirements
The created class should ...
be less then 100 lin... |
You should design your Python files to be usable as modules. Then the master can import the functions it needs from the others, and call those functions with the desired arguments (like start and end).
Here is a tutorial about modules in Python.
http://www.tutorialspoint.com/python/python_modules.htm
I have no idea wha... |
I'm using Mako + Pylons and I've noticed a horrendous amount of whitespace in my HTML output.
How would I go about getting rid of it? Reddit manage to do it.
I'm not sure if there's a way to do it within Mako itself but you can always just do some post-rendering processing before you serve up the page. For example, say... |
Thomas: Hmmm. Well, maybe ... Suppose I do decide to go cross-platform; shouldn't I use Tkinter?
The IDLE treeview.
Boudewijn: You could. It's quite good ... But maybe just a little old-fashioned. It's simply missing several of the features I know you'll expect. If you want to use a treeview, you have to construct one ... |
How can I format a decimal number so that 32757121.33 will display as 32.757.121,33?
Use
>>> import locale
>>> locale.setlocale(locale.LC_ALL, 'German')
'German_Germany.1252'
>>> print(locale.format('%.2f', 32757121.33, True))
32.757.121,33
You can restrict the locale changes to the display of numeric values (when usi... |
Here is the code:
from xml.dom.minidom import Document
doc = Document()
root = doc.createElement('root')
doc.appendChild(root)
for i in range(1,3):
main = doc.createElement('item class:=memory')
root.appendChild(main)
for j in range(1,3):
text = doc.createTextNode('DIMM Size'+str(j))
main.ap... |
gmli
Cerise 0.8 - TPE, freelances, artisans
Hello,
je me suis dit qu'une petit présentation pourrait intéresser du monde ici.
Je viens de sortir aujourd'hui la version 0.8 de mon petit soft de gestion d'entreprise (cf. l'article sur le blog http://leblog.cfait.fr/post/2008/09/07/Cerise-08)
Vous pouvez trouver une liste... |
I'm not sure if the title gave the best description. But this here is my problem. I have a class named 'Ball'. Each ball has its own width, radius and color. My code worked great while I was adding my own balls before the loop eg. ball1 = Ball() .... ball2 = Ball() I'm using pygame and what I want is so that whenever I... |
I've made a script for generating a game world based off of image pixel data.
My progress so far has resulted in a program which loads an image and draws sprites in positions correlating with the map, like this:
Now the problem is that even for small levels, I'm noticing a drop in frame rate. The provided example level... |
21 Feb 2009 » Resizing Image on upload in Django
I had trouble wrapping my head around Django ORM's handling of Images.
The first hurdle was realizing that there is no easy way to store images in the database. I couldn't be too upset with that, it was a flawed concept at best. I wrote a dump script to fix this, and con... |
Test-Driven Development in Python
by Jason Diamond
12/02/2004
Introduction
Python's unittest Module
Motivation
Sample Input
Getting Started
Baby Steps
Refactoring
Conclusion
Introduction
Test-driven development is not about testing. Test-driven development is about development (and design), specifically improving the q... |
Copyright © 2005-2008 Voice Sistem SRL
Copyright © 2009-2012 www.opensips-solutions.com
Revision History
Revision $Revision: 8834 $ $Date$
Table of Contents
db_url(str)drd_table(str)drr_table(str)drg_table(str)drc_table(str)ruri_avp (str)gw_id_avp (str)gw_priprefix_avp (str)rule_id_avp (str)rule_prefix_avp (str)carri... |
Here is the code that finally worked. As it depends highly on my development environment Quickly + Glade + Python + Gtk, I make it an independent answer. Bryce's answer helped a lot, and so did my exchanges with aking1012.
The actual code, in a text editor:
# Accelerators
self.my_accelerators = Gtk.AccelGroup()
self.wi... |
Gemnoc
Re : Logiciel de CAO 2D/3D (Conception Mecanique)
Une autre demande pour Ellypsis, pourrais-tu démarrer FreeCAD de cette façon dans le terminal :
freecad --write-log
Ceci va enregistrer un fichier journal FreeCAD.log dans le dossier ~/.FreeCAD, ouvres-le et postes le contenu ici.
J'ai testé rapidement le Sketch... |
Let me preface this by saying that this is a pointless and ridiculous tool, but I did learn a few things while creating it.
Lately my friends and I have been including #RidiculouslyLongHashtagsForNoParticularReason in our text messages as well as our tweets. Many of my friends do not use camel case, which pains me as a... |
i have an array of 27 elements,and i don't want to generate all permutations of array (27!) i need 5000 randomly choosed permutations,any tip will be useful...
To generate one permutation use
To address the point in the comment, Python's random module is based on the Mersenne Twister and has a period of
import random
p... |
ON MY UBUNTU RACKSPACE SERVER
UNAME -A
# uname -a
Linux myserver.com 3.2.0-24-virtual #39-Ubuntu SMP Mon May 21 18:44:18 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
APT-GET -F INSTALL
/home# apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting depend... |
Cairo is a library for drawing vector graphics. Vector graphics are interesting because they don't lose clarity when resized or transformed.
Pycairo is a set of bindings for cairo. It provides the cairo module which can be used to call cairo commands from Python.
Understanding How to use Cairo
The best way to understan... |
I got class (subclassed from QThread), that recieve data from server at many sockets by select.select():
# -*- coding: utf-8 -*-
from PyQt4.QtCore import QThread, pyqtSignal
import json
import select
class MainSocketThread(QThread) :
disconnected_by_admin = pyqtSignal()
disconnected_by_network = pyqtSignal(bool... |
Uma funcionalidade que não tinha no gEdit e que eu sentia muita falta é a de executar o arquivo que você estava editando. Por exemplo, você pode estar digitando um HTML e gostaria de ver como está ficando, no navegador. Ou, estar fazendo um script em Python, Ruby ou PHP e gostaria de executar esse arquivo sem precisar ... |
I have the following code for my Facebook Registration Social Plugin:
<iframe src="https://www.facebook.com/plugins/registration?
client_id=xxxxxxxxxxxxxxxx&
redirect_uri=http://www.pingxxxxxx.com/facebook_registration_plugin/fbwe/trial.php&
fields=[
{'name':'name'},
{'name':'email'... |
xxkirastarothxx
MegaUpload : BotMU v1.0.1
Bonjour à tous
Et bien voila, depuis quelques temps j'ai remarqué que le capcha de Megaupload a disparu.
Comme il s’agissait du point le plus bancale du développement d'une automatisation de téléchargement sur Megaupload, le projet était en attente.
Maintenant que ce point n'ex... |
gio.FileInputStream — Base class for implementing streaming input
class gio.FileInputStream(gio.InputStream):
def query_info(attributes, cancellable=None)
def query_info_async(attributes, callback, io_priority=glib.PRIORITY_DEFAULT, cancellable=None, user_data=None)
def query_info_finish(result)
gio.FileIn... |
Advanced Parameter Handling For Functions
In the section called “More Features” we hinted that Python functions can handle a variable number of argument values in addition to supporting optional argument values. Earlier, when we defined a function that had optional parameters, it had a definite number of parameters, bu... |
This is the fourth article in a series on converting recursive algorithms into iterative algorithms. If you haven’t read the earlier articles first, you may want to do so before continuing.
In the first article of our series, we showed that if you can convert an algorithm’s recursive calls into tail calls, you can elim... |
Any idea what I am doing wrong here? There are no error messages and the script runs fine, but no record is inserted into the db. Running the insert query on the database works fine.
Even if i put in a bogus IP or password no error is generated.
This is on windows with python 2.7 and the mysqldb 2.7 windows binaries.
i... |
Consodoc is (at the moment) vaporware for XML publishing as PDF. It has passed unit tests, and now I’m going to test the program as the whole.
Consodoc is based on the software build system SCons. From the user perspective, he uses an usual SConstruct with additional calls to consodoc code.
Each functional test for con... |
So you want to have multiple files which contain part of the entries in the main file and each contains the table header?
If that is what you want, one could write a simple script that takes the first file and the number of files that you want (or the number of lines in each file) and creates those files.
If it does no... |
The algorithm sorts all the numbers except the first one, and sets it as last. Please help!
def bubbleSort(numbers): # Bubble Sort Algorithm
numbers = list(numbers)
i = 0
j = 0
for i in range(len(numbers)):
for j in range(len(numbers) - i):
if numbers[j] < numbers[j-1]:
... |
Pylades
/* Topic des codeurs couche-tard [1] */
Bienvenue dans le TdCCT 0x1.
Ceci est la suite de ce fil.
Voici le rappel des règles du jeu, formulées par le message initial de samuncle :
Bienvenue dans ce nouveau topic psychédélique, ou le but est de coder le plus tard possible (oui, c’est bien connu, il est plus faci... |
Let's assume an infinite $n$-dimensional universe with stars distributed according to a Poisson process with density $\lambda$. The probability that there is no nearest neighbour within a hypherspherical volume $V=\alpha_nr^n$ of some star $S$ is $\exp(-\lambda V)=\exp(-\lambda\alpha_nr^n)$. Thus the density for findin... |
This program has been disqualified.
Author Rekrul
Submission date 2011-07-06 12:17:55.447108
Rating 7539
Matches played 2697
Win rate 68.59
import random
SIZE = 11
WEIGHT_FACTOR = 4.8
class HistoryNode(object):
def __init__(self, parent=None):
if parent is not None:
self.depth = parent.depth + 1... |
Im getting some parse erros when loading in my facebook app through the canvas. Its in an iframe. Can anyone tell me where I can start to look for documentation regarding this?
Errors whilst loading page from application
Parse errors:
CSS Error (line 40 char 36): Error in parsing value for property.: 'font' Declaratio... |
I start my Pandas introduction by demonstrating how to create and use the core data structures: TimeSeries and DataFrames.
In brief, a TimeSeries (or Series) is an indexed (labeled) vector. Technically, a TimeSeries in pandas is a Series where the index is composed of dates. A DataFrame is more like an indexed matrix (... |
I have a 2 seconds 16bit single channel 8khz wav file and I need to change its volume.
It should be quite straightforward, because changing the volume is the same as changing the amplitude of the signal, and I just need to attenuate it, that is to multiply it for a number between 0 and 1. But it doesn't work: the new s... |
Note: For brevity I am using "O" in place of theta.
No need for BFS.
In the case where your adjacency lists consist of a list of directed edges, maintain two vertex-count mappings, one for in-degrees, and one for out-degrees. Each vertex should be initially mapped to zero. Then iterate through each edge, u,v and increm... |
I'm trying to map a struct definition using ctypes:
struct attrl {
struct attrl *next;
char *name;
char *resource;
char *value;
};
I'm unsure what to do with the "next" field of the struct in the ctypes mapping. A definition... |
I did it this way:
NOTE: please, read carefully, don't break your operating system.
The Idea: get files that appear after "make" (build). Then search those files on system and remove them.
Bibliography:
Uninstall files installed from a source code tar-ball - nixCraft
- entered to source files of httpd-2.2/ folder.
#... |
Thank you @mercergeoinfo! In my case
/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py
was missing urandom, but
/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py
had urandom defined, and this was the only difference:
flengyel$ diff /Library/Frameworks/Python.framework/Ve... |
I guess using Jython, you can do anything with Python that you can do in Java.
Conversely, Python has the PyPy compiler, which is pretty cool - a virtual machine with multiple backeds (Java Runtime, LLVM, .net, and Python IIRC), multiple garbage collectors, multiple implementations (Stackless), etc. I know Java has a b... |
I'm trying to get GeoDjango running on SpatiaLite on Ubuntu 11.04, and even with a very minimal setup, I'm hitting a strange error. Saving an instance of a model with geo-fields works, but loading it again fails with an exception:
Error encountered checking Geometry returned from GEOS C function "GEOSWKBReader_read_r".... |
Twisted contains a large number of examples. One in particular, the "evolution of Finger" tutorial, contains a thorough explanation of how an asynchronous program grows from a very small kernel up to a complex system with lots of moving parts. Another one that might be of interest to you is the tutorial about simply wr... |
hi there im creating a web browser using a mix of quickly and Python, im wanting to get a websites title to show up in the very top of the page. im not sure of what code that i need adding to the file, ive looked all over the internet and that has been of no use.
this is the code i have got for the browser so far :
imp... |
You Can Hack .NET Without Buying Visual Studio .NET
Pages: 1, 2
Cordbg.exe, the .NET Debugger
The .NET Framework SDK utilities include a debugger, and if you learn to use it, your life as a .NET programmer will be much simpler. Let's use the debugger (cordbg.exe) to examine this problem. First, start the program under ... |
In most well-known OO languages, an expression like SomeClass(arg1, arg2) will allocate a new instance, initialise the instance's attributes, and then return it.
In most well-known OO languages, the "initialise the instance's attributes" part can be customised for each class by defining a constructor, which is basicall... |
toma222
[HOW TO] adesklets : installation sous Ubuntu Dapper et Edgy
Il existe désormais un article sur le wiki concernant Adesklets donc je vous conseille de vous y fier, ce tutoriel n'étant plus mis à jour.
Je poste ce sujet en complément du sujet sur l'installation de adesklets sous Breezy.
Je ne reviendrais pas sur... |
#2826 Le 12/03/2013, à 22:08
k3c
Re : TVDownloader: télécharger les médias du net !
@ mulder29
Tu ne donnes pas de renseignements pour qu'on puisse t'aider
as-tu passé la commande sudo apt-get ...
tu as eu un message d'erreur ?
Hors ligne
#2827 Le 12/03/2013, à 22:57
mulder29
Re : TVDownloader: télécharger les médias d... |
Querying large datasets with Hive is trivial. However, there are times when Hive’s built in functions are insufficient. For example, I recently needed to extract the ordering of elements in an array.
The common advice for such problems is to write a custom Java UDF (User Defined Function). However, since I do not know ... |
From the looks of your code I assume that you are using this for a python script. Because of this, we'll have to proceed this way:
import time
now = time.ctime(int(time.time()))
print("the now time is ") + str(now)
Which, using your example timestamp, should give you the following output:
Thu, 28 Jun 2012 07:10:11 ... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.