Python 3 is the latest version of the Python programming language and was formally released on December 3rd, 2008.
3
votes
1answer
23 views
Time optimization of counting shifts in insertion sort
Is there any way of counting how many shifts would it take to count shifts while doing insertion sort? This is a Hackerrank problem. Here's my solution, but it takes more than 16 seconds.
counts = ...
5
votes
2answers
319 views
Sherlock and The Beast
I have recently written the program for the Sherlock and The Beast' HackerRank challenge. That's working fine, but the problem is that it takes too much time if a big number is given as a input. I ...
5
votes
2answers
229 views
Pretty-print Pascal's triangle
def printTrg(rows):
r1 = [1]
r2 = [1, 1]
trg = [r1, r2]
r = []
if rows == 1:
r1[0] = str(r1[0])
print(' '.join(r1))
elif rows == 2:
for o in trg:
...
0
votes
1answer
26 views
Calculating Leibniz of Pi [closed]
I have this Python program for calculating Leibniz of 'pi'. I am not able to shorten it more. Can anyone here optimise/shorten it?
s,a,b=0,[],[]
for i in range(int(input())):a.append(input())
for x ...
2
votes
1answer
41 views
Verlet integration movement - doubt for on_key_press() methods
Based on my understanding of Verlet integration I tryed to use it over my Euler method to move my character in a 2D space.
I will put only the neccessery code, but if anything else is needed I will ...
4
votes
1answer
74 views
Modified BFS code optimizations
I need some help reviewing this code in terms of making as fast as possible. This is a modified version of BFS that does quite a bit of processing on the side.
Use case:
I have a large graph ...
8
votes
1answer
62 views
Produce bitcoin private key from 31 playing cards
I've written some Python code to generate a random hexadecimal string using 31 playing cards drawn without replacement (so no card appears more than once). This is sufficient to provide more than 160 ...
5
votes
4answers
349 views
Sieve of Eratosthenes - Python
So I've been doing a lot of Project Euler lately and just wanted to make sure my implementation was as good as it could be. Does anyone have any suggestions to speed this up?
def sieve(upperlimit):
...
13
votes
2answers
145 views
Condorcet voting method in OOP Python
I'm currently learning Python and having a great time so far (coming from PHP, I have a feeling of suddenly seeing the light).
At the same time, I'm studying voting algorithms. So, for training ...
5
votes
3answers
147 views
Code optimization for SQLite result set parsing
I am retrieving information from an SQLite database that gives me back around 20 million rows that I need to process. This information is then transformed into a dict of lists which I need to use. I ...
10
votes
3answers
322 views
Installing “mods” with Python
A little disclaimer: you're going to have a field day with this. It's horrible. Looking at it makes me want to vomit, and don't ask me to explain it, because I've long forgotten what I was thinking ...
4
votes
1answer
61 views
Cutting strings into smaller ones based on specific criteria
So, I've got this largish (for me) script, and I want to see if anybody could tell me if there are any ways to improve it, both in terms of speed, amount of code and the quality of the code. I still ...
5
votes
1answer
66 views
Hooking with Python3 Decorators
I wrote this prototype after reading the Wikipedia article on hooking. I didn't bother to read any of the code examples listed there because, well, I just didn't. I don't have a good excuse.
The ...
7
votes
1answer
78 views
More efficient way of removing line indices?
After profiling my current script I've found that nearly 100% of the run time (and I'm not surprised) comes from the following function:
def rem_asc_by_pos(xmlFile, fileOut,removeIndices):
fileIn = ...
7
votes
3answers
151 views
Simple MPG calculator in Python
I am a self taught coder taking a Programming Fundamentals class to work towards a degree. It's based on Python, which I'm not as familiar with as other languages. I added error handling like I would ...
5
votes
1answer
126 views
Optimizing my code for Project Euler Problem #23 (Non-abundant sums)
Project Euler Problem 23 asks:
A perfect number is a number for which the sum of its proper divisors
is exactly equal to the number. For example, the sum of the proper
divisors of 28 would be ...
3
votes
0answers
91 views
XLSX writer implementation
We have multiple scripts which write into XLSX with the same format, into a different format or slide variation. I am trying to write an API which saves time for other programs, but I need input on ...
6
votes
4answers
69 views
Record Cataloging Program
I made a simple program to catalog some old records I have. It seems a tad redundant in the searching function. Does anyone know what I can do about that?
import easygui as eg
import sys
namedoc = ...
2
votes
1answer
57 views
Python Hangman feedback
Just looking for some feedback on a hangman script. It works perfectly fine; I'm just trying to master the Python language, and the best place way to get better is to ask the true masters!
import ...
2
votes
1answer
51 views
Python data massager
Below is a pretty simple Python script to ingest some data, massage it as necessary, append a column, sort it, and then write it back to another file. Still learning all the Python best practices and ...
5
votes
1answer
179 views
Newton's method to solve cubic equations
I have deleted the previous question I had posted, and am reposting the program with the new version of the code without the error present in the previous one.
I have used the Newton-Raphson method ...
4
votes
0answers
109 views
Tkinter file searching program
This is my first relatively big program. First it shows an askdirectory() screen to get the path. It gets all subfolders of that path and appends them to a list. It checks every folders' items if they ...
1
vote
1answer
69 views
Python converter: number-to-English
So I wrote this function to convert a given number to its interpretation in the English language as part of the Project Euler exercises. It works fine, but I sense that it's rather sloppy and ...
5
votes
2answers
155 views
Performance of modular square root
Here's Project Euler problem 451:
Consider the number 15.
There are eight positive numbers less than 15 which are coprime to 15: 1, 2, 4, 7, 8, 11, 13, 14.
The modular inverses of these ...
2
votes
0answers
215 views
Reading columns and rows in a .csv file
I have some data in a .csv file, which looks roughly like this:
[fragment1, peptide1, gene1, replicate1, replicate2, replicate3]
[fragment1, peptide2, gene1, replicate1, replicate2, replicate3]
...
3
votes
2answers
204 views
Python Port Scanner
This is only my third Python script. Be brutal with me. Any tips, tricks, best practices, or better usages would be great!
import socket
from concurrent.futures import ThreadPoolExecutor
THREADS = ...
0
votes
1answer
150 views
Fastest way for working with itertools.combinations
I need to speed up the function below:
import numpy as np
import itertools
def combcol(myarr):
ndims = myarr.shape[0]
solutions = []
for idx1, idx2, idx3, idx4, idx5, idx6 in ...
2
votes
1answer
91 views
Partial data reading implementation
I'm trying to learn Python and am working a simple Tiled Map Format (.tmx) reader as practice. So as to not post too much code at once, I'm only publishing the <data> element which stores the ...
1
vote
1answer
189 views
struct.unpack on a bytearray that works under Python 2.6.6, 2.7 and 3.3?
Given the test code:
import struct
buf = bytearray(b'\xef\xf8\t\xf2')
number = struct.unpack("<I", buf)[0]
How do I cleanly make it work both under Python 2.6 and Python 3.3? The problem is that ...
1
vote
1answer
60 views
Reading Multidimensional arrays
I am building a cypher program which uses a matrix of numbers and letters. A message is encoded according to the row an collum each letter of the message is found in the matrix.
I am trying to find a ...
3
votes
1answer
137 views
chess moves - pythonic
I started a chess in python for fun. i learned python on my free time but i've been doing it for a while. The code works but i just want to know if there's anything non-pythonic in my code. The ...
4
votes
2answers
293 views
Python Script to Search PirateBay
I've written a very basic Python 3 script to search ThePirateBay. Since the tracker doesn't have an API, I had to parse the HTML using BeautifulSoup. I'd like to get some reviews, I'm pretty sure the ...
0
votes
0answers
71 views
Drawing stars around the center of the screen
I have an homework as follows:
Write a program where you enter from the keyboard a number n. Then n
stars are drawn onto the screen, circling around the center of your
screen. You can assume ...
0
votes
2answers
108 views
Counting the even digits in a number [closed]
I made a function to count the even digits in a number and when I enter a number that doesn't include any even digits. I need some one to tell me why and how to fix this. And please be simple in the ...
0
votes
2answers
62 views
Function to count the digits in a number is not working [closed]
I tried to test this function and the first test is OK, but the seconds test failes and I don't know why....
Note: I'm a beginner, so be easy and Please, don't give me complicated answers!
import ...
5
votes
2answers
93 views
Copying data to a .txt, but making it look nice?
This is probably horribly sloppy, but here it is! This is a section from a large (imo) GUI program I am making. The below code is what triggers when a specific button is pressed.
def ...
4
votes
4answers
253 views
Rock paper scissors
I've started learning Python recently and I wanted to test myself. So, can you tell me how many I would get out of 10 and how I could improve my future coding?
import random
import time
...
4
votes
1answer
55 views
Organization of complex empirical equations
I am working on coding up a set of models that are based on empirical models. These models tend to be quite complicated. In some cases, the logic used by the equations makes it impossible to compute ...
1
vote
2answers
126 views
Taking the sum and average of the keyboard inputs
I have an assignment as follows:
Write a program where you can enter from the keyboard up to 10
integers. If the number entered is equal to -99, stop reading numbers
from the keyboard and ...
2
votes
4answers
122 views
Printing a rectangle
I have an assignment as follows:
Write a program which reads from the keyboard two integers n and m,
and a character c from the keyboard. This program should define and
call a function:
...
2
votes
1answer
87 views
Drawing a table in Python3
I have created a module to draw text tables. The relevant parts are below and here's the full code for txtable).
class Row(Txtable):
[...]
def format(self, col_widths):
"""Return the ...
1
vote
0answers
81 views
A program that deliberately makes “mistakes” [closed]
I am confused about an assignment question. We are simply asked to code a program which deliberately makes mistakes. The assignment question is as follows:
Write a program that deliberately makes ...
0
votes
1answer
38 views
Best way to print the value of a variable?
Which of the following is better coding style and why?
print("We have x = %i" %x)
print("We have x = "+str(x))
1
vote
0answers
67 views
Script for concatenating delimited text files
I need to concatenate a bunch of delimited text files. In the process, I need to add a new column to the data based on part of the name of one of the directories containing each file. The script ...
0
votes
1answer
269 views
Find scrambled words within word list
I'm just getting started with Python -- completing a simple exercise from a practice website. My code works -- just looking for feedback on better ways to achieve the goal.
Goal:
Find the ...
1
vote
2answers
76 views
How to make this random number game better?
I'm a newbie trying to teach myself Python. Could somebody tell me if there is a better way to write this? I am also curious as to whether or not there is anything I should not do. This code does ...
0
votes
2answers
54 views
How to enumerate the internal nodes and leaves of a tree more elegantly?
Might there be a simpler way to write this code?
This is the code I have, and I'd like to learn to write code more efficiently.
Thank you.
def leaves_and_internals(self):
"""(BTNode) -> ...
2
votes
1answer
84 views
How to turn this working A/B optimization program into more pythonic code?
I have a working solution for the given problem of A/B Optimization, but you as an experienced Python (3) developer will agree with me, that this solution is not very pythonic at all.
My Question ...
3
votes
2answers
358 views
Returning a list of the values from the binary tree
I want to return a list of the values from the binary tree. Is there a shorter and more efficient way to write the method for numbers?
class BTNode(object):
"""A node in a binary tree."""
...
3
votes
1answer
75 views
Subscriptable/Indexable generator
I'm not a Python developper, but I enjoy programming with it, and for a project I wanted to have generators that I can easily index. Using python's slice model is obviously the way to go, and here's ...
