Questions tagged [python]

Python is an interpreted, general-purpose high-level programming language whose design philosophy emphasizes code readability. Use the python tag for all Python related questions. If you believe your question may be even more specific, you can include a version specific tag such as python-3.x.

1,256 questions with no upvoted or accepted answers
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11
votes
0answers
74 views

Generate a video of typing the contents of a file

I wrote a Python script to generate a video file of typing the contents of any program file. It works, but I'm really not very happy with how it works. I have several issues with it. In order to ...
9
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0answers
808 views

Cyther: The Cross Platform Cython/Python Compiler (Take 2)

I recently posted an earlier version of this code on Code Review, and now with the given suggestions and many other improvements, I am back. I included the description of exactly what Cyther is ...
8
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0answers
842 views

Django on virtual machine - watching changes in static files and autocompiling LESS without inotify

I'm setting up a Django development environment using Vagrant to run an Ubuntu virtual machine on VirtualBox. As this is a student project run mostly be very amateur coders and I want everyone to be ...
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3answers
112 views

Python Blackjack, need OOP advice

I'm still learning Python and especially Object Oriented Programming. The latter, though, seems to confuse me a lot: defining class object attributes vs instance attributes, passing arguments, using ...
7
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0answers
144 views

Multithreaded HD Image Processing + Logistic reg. Classifier + Visualization

[I'm awaiting suggestions for improvement/optimization/more speed/general feedback ...] This code takes a label and a folder path of subfolders as input that have certain labels ex: trees, cats with ...
7
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0answers
78 views

Calculation of independence test statistic

This code (~30lines) detects independence between variables in a dataset, by using a bootstrap of a statistic. This is fully-broadcasted, but it's still long. Reading it, or making it run, do you ...
7
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0answers
2k views

Sending notifications with Django channels

I have project on Django wich use Django Channels. I use Django Channel for sending notifications to users who are subscribed to articles changes (adding/editing/deleting comments on article). So I'...
7
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1answer
257 views

Python program to transform an Excel document, with some parsing

I wrote this to parse through an Excel doc, extract desired columns, parse certain cells and output another formatted Excel doc. This is the original Excel doc I have condensed most of the columns ...
7
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0answers
633 views

Let's register that Django user

Short intro So, I've been using Django for a while now and thought it would be nice to start a simple application. In an ideal World, each app must have a way of letting its users register and that's ...
7
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0answers
866 views

Read quantization tables from JPEG files

I'm developing an application that will hide information inside the quantization tables of JPEG files. It's called DQTsteg, if you want to know more about what I'm attempting to do. Right now I'm ...
7
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0answers
1k views

Flask view dependency injection

so, first of all, I've been into trying to have a simple dependency container as possible in python and with your help managed to get conceive https://github.com/dareenzo/tinydic, many thanks. Now, I ...
6
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0answers
60 views

Recursive and iterative implementation on Kosaraju algorithm

Kosaraju algorithm is mainly phrased as two recursive subroutines running postorder DFS twice to mark SCCs with linear time complexity O(V+E) below, For each vertex u of the graph, mark u as ...
6
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0answers
164 views

How to make my groupby and transpose operations efficient?

I have a DataFrame of size 3,745,802 rows and 30 columns. I would like to perform certain groupby and ...
6
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0answers
102 views

Get a movie directory, rename it and save imdb info as a webpage

I have my movie folders formatted: ~: no sub included {}: already watched nothing: sub included, ready to watch the program asks for the movie directory; extracts the name and searches IMDb for the ...
6
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0answers
99 views

Reading sparse matrix from binary file

I have binary files containing sparse matrices. Their format is: number of rows int length of a row int column index int value float Reading ...
6
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0answers
703 views

Intersection of two lists in Python

I am currently working on an algorithm, which involves finding the intersection of two lists. That is, given the following inputs [1,2,2,1],...
6
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0answers
520 views

Laminar flow in a pipe animation using Tkinter

I wrote this simple particle flow animation with Tkinter. I wanted to ask if there is some major improvements you can think of regarding the animation motor or the documentation of my code? I noticed ...
6
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0answers
7k views

Example of multithreading in Python3 / PyQt5 using QThread

I wanted to make a simple example of multithreading with QThread in PyQt5 / Python3. The script generates a set of QLineEdits and buttons to start and stop a set of ...
6
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0answers
320 views

Simple AR Tag classifier

I have been working on creating a simple AR Tag classifier, for detecting a simple AR Tag glyph. Spitting out an image that looks like this: With the red circle indicating the corner closest to the ...
6
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0answers
2k views

Calculating T-Test within Large Pandas Dataframes

The below code runs a t-statistic within a large dataframe (rnadf) based on masked values from another dataframe (cnvdf_maked). ...
6
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0answers
2k views

Improving the Flask cache decorator

In my rumblings developing flask applications I found the caching decorator. The decorator is a short and well-written piece of code, but I feel like it misses the few points bellow: It only caches ...
6
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0answers
3k views

Real-time bitcoin data feed and storage using websocket framework

I'm trying to create data feed script for real time bitcoin data for OkCoin exchange using their websocket API (documentation) and a database manager for storing. There are two channels I am ...
5
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1answer
49 views

CLI Tic-Tac-Toe in python

Is there any way I could make my Tic-Tac-Toe board more aesthetically pleasing? Is there anything else I can improve besides the look of the board? ...
5
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0answers
51 views

Dealing Synchronous Request in Asynchronous Code

Problem I am trying to convert my synchronous code to an asynchronous implementation. Using aiohttp I was able to almost get where I want. My problem is how to ...
5
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0answers
224 views

what is the correct way to write an endpoint?

Here is a rather large endpoint that I have written in Python using Flask and SQLAlchemy, I was wondering if there are any tips I could get. The endpoint takes a post request which contains specific ...
5
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0answers
51 views

Python - Displaying messages in ArcPy/IDLE

I have created a wrapper for displaying messages with ArcPy and IDLE (as that is all I have available to myself due to certain circumstances) as I frequently use both to test and develop new tools. ...
5
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0answers
139 views

Liveness monitor : python and RabbitMQ together through Pika

I'm a beginner using Python, and I'm trying to implement a functionality of a monitor program already developed by an other programmer. This program is working on a Windows machine (made by Inno ...
5
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0answers
79 views

Python Project Template

What's up smart people. A little backstory for context: I'm a completely self taught dev, and the only person ever looking at my code for the past 6 years is myself. I realize that's not the best idea ...
5
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0answers
173 views

Docker-compose for task-based Flask API with Redis and rq

I am not a Docker guru or expert in Flask or Redis. However, I need to leverage these technologies. I managed to cobble something together that works and would like to submit it for review. The MWE ...
5
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0answers
165 views

Linny: Continued Language Development

A previous question regarding Linny exists here. After a wonderful response on my previous question regarding my developing programming language, I worked on it for a couple days, and am returning ...
5
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0answers
55 views

Tensorflow loop to analyze gradients derived from MRI and PET images

The code shown below takes the partial derivative of each pixel of the output fused image of a neural network with respect to input image of the neural network using tensorflow's ...
5
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0answers
74 views

Parsing Long Excel Report Files for Predefined Results

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 ...
5
votes
1answer
148 views

Python gRPC shopping cart service

The .proto file is as below: ...
5
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0answers
2k views

Cubic spline interpolation in Python from scratch

I implemented the cubic spline interpolation explained in https://en.wikipedia.org/wiki/Spline_interpolation as a Python class. Of course, such an interpolation should exist already in some Python ...
5
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0answers
76 views

graphtimer v2 - Utility to plot timings

GitHub repo (MIT) Clone the repo and replace the contents of example.py with the one at the bottom and you'll have everything setup. Explanation of the code A ...
5
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0answers
128 views

Tkinter application to manage school tasks

I'm a beginner in OOP programming and I'm wondering what is the best way to put all the windows and functions of a window application in the code. My biggest questions are: Am I using classes and ...
5
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0answers
50 views

Iterate over the solutions for minimum cost matching

I implemented this paper, more specifically the bipartite graph case in numpy. The whole code is available on github. The file munkres.py comes from scipy. Some ...
5
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0answers
42 views

Measure size of repository as a function of time

In order to avoid having to make any real progress (at least for a short time), I wrote a script that measures how much progress I have made so far, instead. Specifically, this script sums up the file ...
5
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0answers
404 views

Secure Password and Passphrase Generator in Python 3

I'm aware that people have implemented password/passphrase generators before, but I still went ahead and wrote my own, which I actually use for my own passwords and/or phrases. By "secure", I mean ...
5
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0answers
561 views

2048 AI in Python 3

I am working on an 2048 AI and this is my code so far. In the game 2048 you have a 4x4 grid in that some random so named tiles spawn. Each tile has a number. The lowest number is 2. By using the left,...
5
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0answers
48 views

Comparing same-size files and reporting on the differences byte-by-byte

I created a small Python utility to analyze multiple same-size files and report on the difference byte-by-byte (i.e. Hamming distance, not Levenshtein distance.) I am planning to extend the ...
5
votes
0answers
550 views

Asyncio HTTP Request Queue

I wrote a simple sitemap.xml checker using asyncio and aiohttp. I followed the documentation demonstrating the producer/consumer pattern. However, I noticed that as the URLs scale larger, it seems to ...
5
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0answers
642 views

Codewars: N-dimensional Von Neumann Neighborhood in a matrix

Task: For creating this challenge on Codewars I need a very performant function that calculates Von Neumann Neighborhood in a N-dimensional array. This function will be called about 2000 times The ...
5
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0answers
75 views

“Backend” of custom app made for editing Google Spreadsheet file

I've been learning some basics of python for few moths now. My friend, who works as salesman at company which sells hookahs, asked me if a could write a simple app which would help him maintain a ...
5
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0answers
388 views

Game involving catching falling items

This is my first game. Everything in the game was created by me during this week - from assets, music and, of course, code. As I am new to Python I have wondered if the design template for this game ...
5
votes
0answers
622 views

Parsing different categories using scrapy from a webpage

I've written a script in python scrapy to parse different "model", "country" and "year" of various bikes from a webpage. There are several subcategories to track to reach the target page to scrape the ...
5
votes
0answers
8k views

(Python) Use IMAP lib to download attachments and email details

This is my first approach to programming in Python, so I hope you will "destroy" my coding! Idea is to use SSL connection to my mailbox and use IMAP to download attachments from emails with ...
5
votes
0answers
4k views

Minimal SQLite table view in PyQt5

I have just started digging into PyQt5 in order to write a small GUI for editing a lexical database. Before I dig deeper into this, I would like to have feedback on the progress so far. Some ...
5
votes
0answers
3k views

Auto clicker with a simple GUI

What do you think of my auto clicker script? Even though it's just for my own personal use, I'm thinking of using PyInstaller to turn it into an exe, so I know how to do that in the future. ...
5
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0answers
1k views

Python script to generate a playlist with the Spotify API

The result is just a list of youtube links. I'm requesting an access token every time and throwing it away, so I'm thinking of a way to save it for future use. Maybe I'll use a tempfile, but even ...

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