I have the below code to pull messages from a FIFO SQS queue. Using the while (_isRunning) making me feel to question the code design and if there is a pattern I am missing or some SDK that will do this more efficient with recovery on error and other features for a subscriber that won't need huma...
Follow-up to Python program to find a word ladder transforming "four" to "five"
I'm trying to write a program to solve a word ladder puzzle to brush up on my Python. For those who don't know:
A word ladder puzzle begins with two words, and to solve the puzzle one must find a chain of other w...
I have this image:
I want to whiten the black contours (borders) around it without affecting the image content.
Here is the code I used:
import cv2
import numpy as np
import shapely.geometry as shageo
img = cv2.imread('filename.jpg')
# get the gray image and do binaryzation
gray = cv2....
I'm a beginner in programming and I'm trying to make a tic tac toe program, but I have no idea on how to finish it. I like it simple, but interactive. Any tips?
import random
def rules():
print("\nHey, this is TIC TAC TOE to play with a friend!")
print("The first to complete three lines...
This is a Leetcode problem -
Given an array nums of n integers, are there elements \$a, b, c\$ in nums such that \$a + b + c\$ = 0? Find all unique triplets in
the array which gives the sum of zero.
Note -
The solution set must not contain duplicate triplets.
Example -
G...
So I have an user which can create his own Locations.
I use a webservice in order to add and update locations. If the user is not the owner of the location i want to throw an appropriate exception so that the user knows whats wrong.
The current method looks like this:
private void updateLocat...
Improve consistency
Duck-typing can be useful in some situation, but letting users that may want to provide their own reader for their own devices figure out the internals of your particular duck-typing is not very friendly.
Look at how you define your reader in droneracer.py:
if args.serial i...
This question is a follow-up of this one; where I present a software to plan and manage drone races. I might come with a new question about the SQL part in a few days as well.
The code can still be browsed on GitHub.
Since then, on top of the changes in documentation that I made in my own answer...
With this algorithm I update an automatically generated verilog-file. The update within this file is done by commenting the assigned wires to specific ports of module instances.
Is there a better, more elegant or more optimized way to do this than with this algorithm?
file_name = "test.v" # ...
I heard that there was a twitter bot which automatically posted questions and asked for questions for specific questions on every site. How do they work? Is there an algorithm for doing this or is it purely random? I know that it doesn't tweet closed questions, but that's it.
I work as an IT intern in a multinational and I was given a tedious task of combing through a 2500+ long multi-column excel report file in search of inactive servers.
Here's a sample row from that file:
Then, I got another excel file but this time with just the DB Codes (80+ of them).
My tas...
I am learning to work with OOP design patterns and so I challenged myself with the idea of creating a way to generating a pdf invoice based on some information entered. So , this is what I had done so far and would like to have some review on my approach and design.
Invoice.py
import fpdf
fro...
Regarding the Character picture exercise located at the end the following page:
https://automatetheboringstuff.com/chapter4/
i wrote the following code, any feedback is appreciated.:
grid = [['.', '.', '.', '.', '.', '.'],
['.', 'O', 'O', '.', '.', '.'],
['O', 'O', 'O', 'O', '.'...
I have developed an ssis package and i have a script which fetches few text command from a .txt file , stores those in variables and i use those variables to see what to do next and which dft to execute.
When i go to the .dtsx file--> right click--> execute -->i get the error message saying "Exc...
This is a Leetcode problem -
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.
An input string is valid if -
Open brackets must be closed by the same type of brackets.
Open brackets must be closed in the corre...
When handling errors in C#, is it acceptable/appropriate to re-throw exceptions that are caught in a try/catch?
My scenario is that I am making an HTTP request and then checking the content of the response for a specific key (access_token). If that key is missing, I throw an error.
However, as ...
WHY IS THIS NOT WORKING?
Please review this code
#include<stdio.h>
#include<stdlib.h>
int main()
{
int n,i,j;
int sum1,sum2 = 0;
int diff;
Input for the size of array
scanf("%d\n",&n);
int arr[n][n];
for(i=0;i<n;i++){
for(j=0;j<n;j++){
Inputs to the arra...
I am sharing this function I wrote with the community to provide an alternative to slow VLOOKUP and/or Index-Match functions. Also, if you have any feedback/suggestions to make this better please let me know. I tested this function using a lookup of just under 160,000 rows and it returned results...
I've recently started work on a hobby project that's basically a sandbox file system written in Java, slightly inspired by PhysicsFS. The point of the project is to separate what files a user can read/write to by restricting read/write to predefined locations on the disk. A "location" can be eith...
I'm writing my own version of a Mandelbrot set generator, with pan and zoom functionality. (There's not yet a color overlay of sets generated with various beta values; the beta value is changed manually with a spinner.)
Pan: drag left-click
Zoom: roll mouse wheel
The main problem with this co...
I'm trying to fix some methods such as "restore a backup" in my public library system.. But I've been stuck for weeks. Can someone help me out? The code is below, but it's a lot. Not that complicated to read, I hope.
"""TODO:
Done - filling the system with books from a file of books in JSON form...
Backstory
This is a buffer I wrote for use in multiple personal projects. It is designed
to handle pretty much any data in pretty much any way. In particular I intend to
use it in such instances as recursive-descent parsers, where it will be
important to be able to 'undo' operations.
Undo
This...
Obviously, 'select *' is never a good idea.
HOWEVER, I have taken a job with an org that allowed this cancer to spread.
They have huge queries, using select * as SUB-QUERIES, when the coder only needed 3 or 4 columns.
select t.field1, t.field2, t.field3, x.field4 ...
from table t
left j...I was solving a coding question named as "CHEF AND PROXY" on the codechef (link https://www.codechef.com/JUNE19B/problems/PROXYC). I have written the following program in python, it gave the exact output as I was expecting from my examples but when I submitted the code on the website, it shows an...
Please review the code below and provide constructive feedback to improve
Multiple threads call SendMessageToMSMQ method to send messages to msmq queue.
occassionally this messageQueue.Send(sendMsg); throws insufficent resources exception. Dont know why its happening. Storage is not an issue, i...
A coding challenge in which we are to write a function that compares two strings and returns the one that is lexicographically smaller.
Both strings may contain any characters. Consecutive numbers in the string are considered a single number.
Examples:
input: "a", "b"
expected output: "a" sin...
If you've noticed something from a specific user, and they have at least one post, you can flag any of their posts and explain the situation. It's not a big deal on a low-activity site like this, but doing so anyway can keep you anonymous and also give moderators a better starting point.
I need to fetch data from an server that isn't always reliable and unfortunately fixing that is out of my hands. My team determined we would attempt the request up to 3 times.
So I thought of using a try-catch inside the while loop but didn't like the extra indentation for no good reason and tho...
