Tagged Questions

0
votes
1answer
17 views

str object has no attr keys in BFS

I am trying to implement a Breadth First Search function with my data set. My data is a list filled with dictionaries and have list values. An example of my data would be: a = [ ...
0
votes
1answer
52 views

While loop is taking forever and freezing screen?

I have this large program, one of whose parts includes the click of a button (this GUI was made in wxPython). Basically, the button is a timer, and when you click on it, the text of the button ...
-2
votes
2answers
30 views

what type of object is returned when calling a function

`I wrote a function that returns a dictionary and then called this function within another function to get a value using key x: def buildCoder(): return dict def apply(): coder=buildCoder() ...
0
votes
4answers
31 views

Combine list of lists with similar values in python

I have a list of lists, like so: items = [['118', 'white'], ['118','Jack'], ['118','guilty'], ['200','black'], ['200','mark'], ['200','not guilty']] Is there a way to use a for loop to grab the ...
-1
votes
1answer
42 views

make output look nice and clean in python

I'm really new to python. I was just wondering, how do you make the output to look nice and clean? because my output for search and sort functions looks like this "[{u'id': 1, u'name': ...
0
votes
0answers
11 views

Installing MayaVi on Windows, working with Python 2.7

I am trying to install the MayaVi package using pip, but I keep getting an error message saying (ImportError: No module named vtk). How do I fix this problem? So on command prompt: $pip install mayavi ...
0
votes
2answers
29 views

ValueError: could not convert string to float in simple code

# -*- coding: cp1250 -*- print ('euklides alpha 1.0') a = raw_input('podaj liczbę A : ') b = raw_input('podaj liczbę B : ') a = float('a') b = float('b') if 'a'=='b': print 'a' elif 'a' ...
0
votes
2answers
16 views

pypokereval library configure script fails with “No python development environments found”

I'm trying to compile the pypoker-eval-138.0 library for python2.7 (default on mint linux): source tarball dir GNA pokersource site So when running the configure script via ./configure, I get ...
0
votes
1answer
9 views

Anritsu Pyvisa Issues

I'm having issues comminicating with the Anritsu MG69377B microwave generators. I have no problem going into remote mode and identifying the instrument, but any other command which returns a value is ...
0
votes
3answers
39 views

Python find closest match out of list [on hold]

I have a list with tuples of rgb color values: colors = [ (0, 0, 0), (0, 0, 170), (0, 170, 0), (0, 170, 170), (170, 0, 0), (170, 0, 170), (255, 170, 0), (170, 170, 170), (85, 85, 85), (85, 85, 255), ...
1
vote
1answer
33 views

extracting nested items with beautifulsoup

this may very well be a duplicate. I have read a lot of table-related questions -- like this one -- attempting to understand how to extract web page contents that're more deeply nested. Anyhow ...
0
votes
0answers
6 views

Does HappyBase support row_start filter while scanning to filter where key is long

I am using Java to insert data in HBase table where key is long data type I am using Python happy base to extract the data. I am trying to scan the table by doing following ...
1
vote
3answers
38 views

Questions regarding Python and Class specific variables

I have a question regarding python and class initialized variables. So I recently noticed in Python (2.7.X) that if you set a class variable that hasn't been defined or initialized, you are still ...
0
votes
2answers
31 views

How to extract href, alt and imgsrc using beautiful soup python

Can someone help me extract some data from the below sample html using beautiful soup python? These are what i'm trying to extract: The href html link : example ...
0
votes
1answer
31 views

Not Getting Correct Answer for sine & cosine in Python

I am going through some of my old C++ school assignments and re-doing them using Python. I am now re-doing an assignment where we had to approximate sin() and cos(). I am using the same math I used in ...
0
votes
0answers
31 views

Cannot get python IDLE 2.7, 3.3 to run - OS X

I am running a MacBook Pro with 8gb of memory and a 2.5GHz processor. I run OS X Mavericks, but this problem has happened on other operating systems as well. when I try to open the editor, or even ...
1
vote
1answer
22 views

Python Server-Client Communication with each other

I am trying to modify a tcp/ip server-client communication. Only the server can communicate with the client. I am trying to find an easy a way to send a message back to the server. Not a chat !! Just ...
1
vote
4answers
79 views

Finding the square root in python with the ** operator

I am slightly confused on what the ** operator means in python import math radius = raw_input("Enter your radius") area_of_circle = radius ** math.pi print area_of_circle What I am trying to do ...
0
votes
1answer
33 views

Continue printed text to next line in Python

I have a line of text that I want to make look better by cutting off the end and printing it to the next line. I am using Tkinter and trying to make a Label use 3 lines instead of 1 as the text is WAY ...
2
votes
0answers
45 views

Global variables declared within function are still considered local

I am trying to write the program battleship. I have two gameboard matrices: one for player, one for computer. These are defined outside of main because I want them to be global variables because ...
1
vote
4answers
35 views

Indexing a nested list in python

Given data as data = [ [0, 1], [2,3] ] I want to index all first elements in the lists inside the list of lists. i.e. I need to index 0 and 2. I have tried print data[:][0] but it output the ...
2
votes
2answers
32 views

How to kill a process been created by subprocess in python?

Under Linux Ubuntu operating system, I run the test.py scrip which contain a GObject loop using subprocess by: subprocess.call(["test.py"]) Now, this test.py will creat process. Is there a way to ...
1
vote
2answers
46 views

Cannot find the file specified when using subprocess.call('dir', shell=True) in Python

On a 64-bit system with 32 bit python 2.7 installed I am trying to do the following: import subprocess p = subprocess.call('dir', shell=True) print p But this gives me: Traceback (most recent call ...
2
votes
3answers
29 views

ValueError: unconverted data remains: 02:05

I have some dates in a json files, and I am searching for those who corresponds to today's date : import os import time from datetime import datetime from pytz import timezone input_file = ...
1
vote
2answers
23 views

Can you use csv.DictReader without a file?

I have some comma-separated input I want to parse into a dictionary, so csv.DictReader seemed like a good fit. However, the input is already in string form and not a file as the interface to ...
0
votes
0answers
30 views

How to pass parameters into remote server python script?

I'm writing python script. How to pass (username, filename, Hex_format) parameters from client side into remote server side. Client Side: #!/usr/bin/python import socket import urllib import ...
1
vote
1answer
60 views

python sys.argv[1] vs. sys.argv[1:]

I wrote this code: #!/usr/bin/env python import sys if sys.argv[1] : print sys.argv[1] Try this in console when typed: $ python py.py xxx that prints xxx When i leave it with no parameter an ...
3
votes
1answer
39 views

Python3.3 header preferred over Python2.7 header by gcc

I am trying to compile a code which uses the Python.h header. In fact it is the lcm library. Now, I have Python2.7 and Python3.3 installed on my system. The respective header filer are found in ...
1
vote
2answers
32 views

Trying to import a list of words using csv (Python 2.7)

import csv, Tkinter with open('most_common_words.csv') as csv_file: # Opens the file in a 'closure' so that when it's finished it's automatically closed" csv_reader = csv.reader(csv_file) # ...
6
votes
0answers
96 views

Utilising Genetic algorithm to overcome different size datasets in model

SO I realise the question I am asking here is large and complex. As such I will award a 250 point bounty to anyone who can help me overcome this problem. Background I am making a complex (by my ...
0
votes
1answer
37 views

What's faster: temporary SQL tables or Python dicts for session data?

Have some programming background, but in the process of both learning Python and making a web app, and I'm a long-time lurker but first-time poster on Stack Overflow, so please bear with me. I know ...
0
votes
3answers
38 views

Python 2.7.5 Palindrome code confusion

So i was looking around on here and i found the code for a working palindrome def isPalindrome(): string = input('Enter a string: ') string1 = string[::-1] if string[0] == ...
0
votes
2answers
20 views

Need help writing a Python script that will input a sentence and count the number of words it contains

def main(): p =input("Enter your sentence: ") words = p.split() wordCount = len(words) print ("The word count is:", wordCount) main() I get the read out: Enter your sentence: Hello ...
1
vote
1answer
39 views

So why did this Pygame move code work, but not this one?

So I have these two blocks of code, both which are designed to move a beetle NPC in a circle around a screen. The first one works fine. ##beetle moving code if beetle_list[0].rect.x == 400: ...
0
votes
0answers
17 views

TypeError: 'float' object has no attribute '__getitem__' when using reportLab

I know that there are loads of questions with the same name, but I couldn't find a question with the same point of problem. I am using reportLab for creating a chart, and want to save a drawing to the ...
0
votes
3answers
62 views

Python code not writing into file

I have several text files in a folder, containing a list of names and adjectives. I have managed to create a script that takes random names, second names and such and creates a character from that ...
0
votes
0answers
37 views

Why does Python follow symlinks? How do I work around that?

This is my directory layout: projects/ +-projectA/ |---moduleA.py |---script.py -> ../projectB/script.py +-projectB/ |---script.py This is what script.py contains: import ...
1
vote
1answer
21 views

Index error where I think there isn't

print "Qual deve ser o tamanho do tabuleiro?" while 1: tamanho = input() if 1 < tamanho < 6: print "Que o jogo comece!" break else: print "Nao posso usar isso ...
0
votes
0answers
18 views

py2exe doesn't include entire package

I am trying to build an exe file using py2exe. The script is to create some word clouds using pytagcloud. The issue is that py2exe doesn't include the entire pytagcloud package because of which the ...
0
votes
1answer
15 views

fnmatch does not work with variables but with static strings

The following code does not find any of the patterns defined in the file patterns. #!/usr/bin/env python import os import fnmatch patternFile = open('patterns', 'r') patterns = ...
0
votes
1answer
67 views

Removing Stopwords in Python

I'm trying to remove the stopwords from a user input string using the .join fuction. It looks like this: while True: line = raw_input() if line.strip() == stopword: break ...
0
votes
1answer
26 views

Python modules not found in virtualenv

I can't get modules to run in my virtual environment. Using pandas as an example: With the virtual env on I run yolk -l and get back (shortened version): ...
0
votes
0answers
13 views

Relationship id doesn't saved in sqlalchemy one-to-many relation

I'm learning Flask with SQLAlchemy, and I have created a relationship as described in the page: class Parent(Base): __tablename__ = 'parent' id = Column(Integer, primary_key=True) ...
2
votes
0answers
21 views

Error in using Python freeze.py

I want to package my Python file on Ubuntu so I installed python2.7-examples. When I used python freeze.py my_file.py I got the following error: Error: needed directory /usr/lib/python2.7/config not ...
1
vote
2answers
37 views

How do I count the user input in a while loop to stop at 10 inputs?

I have recently started creating a Python program for my coursework. I have pretty much the main skeleton of the program but I have created a while loop and I need it to stop when the user enters ten ...
1
vote
1answer
22 views

Python Turtle compare colour

my problem is I wanted to compare the Turtle colour but apparently there is a failure: >>> turtle.color("green") >>> turtle.color() ('green', 'green') >>> ...
0
votes
1answer
27 views

argparse: how to make group of options required only as group

I am using python2.7 and argparse for my script. I am executing script as below: python2.7 script.py -a valuefora -b valueforb -c valueforc -d valueford Now what I want is that, if option -a ...
-1
votes
1answer
30 views

Downloading file with python [on hold]

I am trying to download a file using a python program using a REST API. The response has the following headers set: Content-Type - will correspond to the file's mime-type Content-Disposition: ...
1
vote
1answer
22 views

Extracting images from contours

I am trying to figure out how to make a script that cuts out images from a sheet of images. I can't understand what to do after I get the contours of the images. My train of thought is to load a ...
-3
votes
0answers
53 views

python interactive interpreter around a python application [on hold]

I want to write a program which has an interactive interpreter around it. This interpreter should read multiline Python code with indentation and stuff (not like the raw_input() or Cmd.commandloop() ...

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