15,406 Topics
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 | I am trying to optimize some code I have written. I do not wish to add 0 to my list if it is already set to zero. So it only needs to be changed if the letters or words do not match. Here is the working code (You will also … |
| | I need to write a program that implements this algorithm. create a hash table. for each word in words.txt sort the letters in word and use that as a key enter the(key, word) pair into the hash table prompt the user for a string while the string s not empty …  |
| | I need to modify this code to promt the user for a word and display how many times the word appeared in the input file. class HashTable( object ): """A data structure that contains a collection of values where each value is located by a hashable key. No two values … |
| | I am currently working on my first serious GUI application in python using Tkinter. I currently have a toplevel window that opens from the root window. when i envoke the window from the root i can see all 7 of my other widgets, but the widget: btncancel = Tkinter.Button(addboard, text … |
| | Hi, I was pondering this earlier and wasn't sure if it was possible. Say, for example you had 2 objects; [B]spam[/B] and [B]eggs[/B], and you wanted to create a function to change attributes - e.g. colour. So spam.colour = 'Blue' and eggs.colour = 'Green'. How would you change that attribute … |
| | Hi All i have downloaded following code from web that inputs sound samples and displays spectrum, i want to print frequencies present in each second in the spectrum.i.e when ever the spectrum is displayed i want to print those frequencies as well on the console. Below is the code i …  |
| | hello friends i have just completed the python reading from book called "how to think like a computer scientist Python" ..Now i want to dive for Django framework for web development is that book(how to think....)is enough or should i polish my python skills first.....Please note that i have no … |
 | I was told that there are four python string delimiters but I can only think of three, ', ", & """. What is that last one? I searched google but with no luck.  |
| | hi friends i am a beginner in python programming. I have written code to download 16 pdf files. I am getting the pdf file but I am unable to open the file it is showing error. please help me. [CODE]import re,urllib url="http://www.ncbi.nlm.nih.gov/books/NBK16" id1=[30,24,25,28,22,23,14,33,21,29,16,27,18,20,17,26] j=1; for i in id1: address= url+str(i)+'/pdf/ch'+str(j)+'.pdf' … |
| | Trying to call the gcd from the constructor but I keep getting either a global error or gcd is not defined error. Any suggestions? The program is supposed to reduce fractions immediately. So I got rid of the add. [CODE]class Fraction: def __init__(self,m,n): self.num = m self.den = n gcd() … |
| | Hi All i have downloaded following code from web that inputs sound samples and displays spectrum, i want to print frequencies present in each second in the spectrum.i.e when ever the spectrum is displayed i want to print those frequencies as well on the console. Below is the code i … |
| | Hello python experts! I have a simple script that sends an email with no problem, in order to interface with vb6 I'm tried to modify the entire code into COM service...but I'm having trouble with this error..global name 'MIMEMultipart' is not defined which is on the send_email method. any help … |
| | Hi, I am a new user and I want to show you my Python library. [B][I][U][COLOR="Red"]pypol[/COLOR][/U][/I][/B] pypol is a Python library that allows you to manipulate monomials, polynomials and algebraic fractions. An example: [CODE]>>> import pypol >>> a = pypol.polynomial('3xy - 3a^2 + 2b') >>> a - 3a² + 3xy … |
| | Hei, I tried to find "dynamic programming" algorithms in Python. If anyone has examples of what it means a dynamic programming, it's would be nice. (Please not post Wikipedia links). Google -> c++, java and other, not Python. Thanks! |
| | hi, i'm new to python. i want to read from a text file (as attached) and i want to plot a scatterplot. i want to plot lane as X-axis, EyVt and EyHt as Y-axis. i have a sample code but i need help on how to get python start reading … |
| | Hi, I'm new to Python and having difficulty opening my .py file (ex1.py). In the command prompt I cd to the folder containing the file and when I try to open it nothing happens. The prompt just gives me a new line. It looks like this... 1. I open the … |
| | I have this IRC bot that I am hard coding from scratch just for kicks. In it I pasted all of my functions to a separate file so that it saves spaces on my eyes when I code the mainframe. So on my imports I have: [code] import socket, re, … |
| | Hi, I'm a relative newb to Python and I'm starting my first major project - a logarithmic graphing system. I'm using tkinter for the GUI part of the design, but I've run into a problem. Basically, I want my graph (a tk canvas) to appear in the same (root) window … |
| | Hello dears. I am using python 2.6 in Ubuntu 10.10. I need an interface that make me able to trace my project. for example portable python ver 1.1 has this ability. please intruduse me an interface that be compatible with my os. Thanks. |
| | I'm using Python, PyQt4, and QtWebKit to load a web page into a bare-bones browser to examine the data. However, there is a small issue. I'm trying to get the contents and src of every iframe on the loaded page. I'm using [B][I]webView.page().mainFrame().childFrames()[/I][/B] to get the frames. To problem is, … |
 | I don't know if anyone here is familiar with the Scala digital signage programs but hopefully this question can be answered without any knowledge of it, just in case... I am working with a Python script that checks a csv file and shares some of the info with a scala … |
| | im trying my hand at calling c functions from python. im reading up the tutorial [URL="http://csl.sublevel3.org/C-functions-from-Python/"]http://csl.sublevel3.org/C-functions-from-Python/[/URL]. however part of the tutorial says that i should [QUOTE]Compiling dynamic libraries on Mac OS X is different from the usual gcc -shared you might be used to: gcc -dynamiclib -I/usr/include/python2.3/ -lpython2.3 -o myModule.dylib …  |
| | Hi. I have an external file where I have the results of a dictionary: [CODE]google.com {'facebook.com': 230, 'yahoo.com': 9, 'fifa.org': 67, 'msn.com': 3} yahoo.com {'apps.facebook.com': 13, 'msn.com': 9, 'myp2p.eu': 2} [/CODE] The results show the search engines, the links have been clicked from the search engine and the number of … |
 | Is there any difference between polymorphism implemented in c++ and the one implemented in python ?  |
| | [code] class A: def __init__(self): print 'A()' class B(A): def __init__(self): A.__init__(self) print 'B()' class C(B): def __init__(self): B.__init__(self) print 'C()' c = C() [/code] Cans omeone help me explaining what am I doing wrong here? I`m getting an error like: [code] B.__init__() TypeError: unbound method __init__() must be called … |
| | hi all........ file1 99 root S 5176 95 [B]41.2[/B] 8.3 snmpd file2 99 root S 5176 95 [B]1.0 [/B] 8.3 snmpd i want to caluculate difference between two files fifth column(i.e bolded columns as mentioned above).. thanks in advance...:'(:)  |
| | I have two codes in C and in Python. They gave me different results. Can anybody explain how they works, why I get different results? Thank you in advance!!! In C: ----------- #include <stdio.h> int main() { int a = 100; printf("%d = %02x\n", a, a); a = ~a; printf("%d … |
| | Hi guys, this is the first time for me to post something, i'm really a big fan of the site and so far every time i get stuck in something at uni i come to here. so thanks for helping me survive so far. anywho, i'm here because i need … |
 | You can download the matplotlib free from: [url]http://matplotlib.sourceforge.net/[/url] It has, amongst many other things, the module pylab that allows for high quality plotting of data. All you have to do is to feed it a list of x values and the corresponding list of y values calculated from the x … |
| | I am having a problem using the common dialog in PyQT. For some reason, when I try and import 'QFileDialog', I get a not found error, same with importing QDialog. I am on Py 2.7 (was 2.6) using 'PyQt-Py2.7-x86-gpl-4.8.2-1'. I can import QTCore and QTGui just fine. I thought PyQT4 … |
| | Hello, Iam trying to get a table from the html page.I succeeded in getting the table values.But i have problem in getting the field names in the 1st column. [CODE]# Getting the field names.How to strip the 'b' and get only the names paramKey = table.findAll('b') print paramKey[/CODE] The above … |
| | Hey guys, I've been lurking around these forums for a few weeks now, and this website is by far the most helpful of any site I've visited as far as honing my newfound Python skills, and I figured it's time I jump in and ask some of the more specific … |
| | Hey guys...Need some help with a program for class...here's the assignment If your program detects an error condition, you can make it raise an exception. Here is an example that gets input from the user and checks for the value 17. Assuming that 17 is not valid input for some … |
| | hey guys and girls i am having a bit of a problem with my code [CODE] import os,string,sys,pprint,time,glob from datetime import datetime, timedelta fileList = os.walk('.')#if i use glob.glob it does not show any files now = datetime.now() TWA = now + timedelta(days=-1) #print(TWA) files=str() for files in fileList: fileStats … |
| | I am relatively new to Python and just have a couple quick questions about using file paths in Python code. 1) As I was recently playing around with the command line, I could not get a file path to work correctly unless I used forward slashes in the path...for example: … |
| | Why I have not seen any underline with the menu items although I have put "&" within the menu names. My code is as follows: [CODE]import wx import os class MainWindow(wx.Frame): def __init__(self, parent): self.dirname='' # A "-1" in the size parameter instructs wxWidgets to use the default size. # … |
| | [code] a = 10 def foo(x = a): print x a = 5 foo() [/code] Can someone explain why it prints 10 ? |
| | Hey Guys, I have a minor problem with pytesser for the internet!!! I want to create a program that calculates equation from the internet. I need pytesser to recognize the equation and python to calculate it. Example: 5 + 5 = [ ] Then Sendkeys will type the answer in … |
| | I am trying to figure this problem out but I can't seem to get the code right. Please help. OUESTION: Implement a subclass of list called myList. It will behave just like the list class except for iteration: Usage: >>> l = myList([3,5,7,9]) >>> for item in l: print(item) 3 … |
 | hi... using pysnmp, an 'snmp get' varBinds gives me an 'octet string' of values like: 1+1 Protection; East-West; Spiral Search; ODU Enable/Disable I need to loop through these strings and see whether a particular string say, 'East-West' is present. I am not finding way to do this. can this octet … |
 | Hi... I want ti contril the while loop, just make it looping just for x times, ex: loop for 5 times and pass to the next code :) |
| | I've been trying to find information on this for a while, but I can't seem to find anything. I want to use python to send a command to the command prompt, then instead of sending the output to the console window, put the output into a variable that I can … |
| | I've built a Counter (which is not implemented for python 2.6) for reading a sequence file of strings to a dictionary and trying to return those sequences are unique for that file/a number of files. I use sequences with a length of X-characters as key in my dictionary and put … |
| | hello there guys. im quite confused regarding the use of pyserial classes. ive been reading up on the pyserial documentation. i followed an example and used the code below [CODE]import serial ser = serial.Serial (0 , baudrate = 57600 , timeout = 1) #open serial port (1) - 1 line … |
| | Im pretty new to python so im still finding my feet.. Ive written a small ftp program that downloads a file but its quite basic in that it gets the last element from the list and then downloads it. What is the easiest way to add some logic so it … |
| | Hi, I'd like to find the maximum value in a list but be able to state certain exceptions. For example: if list A=[1,5,3,4] I want to say [CODE]max(A) except index 1[/CODE] which would return '4' as the maximum value. Is there a way of doing this? Thanks. |
| | When I execute; tkFileDialog.askopenfilename(title='Open file', filetypes=[('csv files', '*.csv')]) I get a file open dialog just fine, but there's also a blank TK panel about 2 inches square with nothing in it titled 'tk' behind the dialog. What is it, and how do I make it go away? I'm on Windows … |
| | I can't get images to load.. I always get an error here's my code so far: #pong import os, sys import pygame from pygame.locals import * if not pygame.font: print "Warning, fonts disabled" #-------------------------------------------------------- def load_image(name, colorkey=None): fullname = os.path.join('data', name) try: image = pygame.image.load(fullname) except pygame.error, message: print 'Cannot … |
| | How can I get my editor to expand both horizontal and vertical? I have a simple test application that uses a subclass of a StyledTextCtrl. I create my editor object in a subclass of wx.Frame. [CODE=python] def CreateEditor(self): myEditor = editor.SyntaxControl(self) # subclass of StyledTextCtrl sizer = wx.BoxSizer(wx.VERTICAL) sizer.Add(myEditor, 0, … |
| | So i made a small game using pygame, and I want to be able to give it out to some friends who don't have python, so I want to make it into an EXE. i've been trying for several hours using several different methods, but nothings seems to be working. … |
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