All Questions
44 questions
1vote
1answer
284views
Rules-engine to be improved/simplified for Efficiency (performance), Extensibility and Maintenance?
This is a simple implementation of a rules engine. I am really hating the very long MATCH/CASE function. I am wondering what kind of Design Patterns could be used there to make this code more ...
user106017
2votes
1answer
98views
Semi-generic data loading utility class
The following implements a relatively generic and modular data loading utility. It loads images from a local storage given a lookup table. The data loader is parametrized via dependency injection to ...
- 129
5votes
2answers
415views
Poker bets on Python
I'm writing poker for my bot in discord. So far I'm presenting an incomplete version of the project, which is only a betting system. The development took a lot of time, so I decided to ask for help. ...
- 53
-1votes
1answer
64views
Replacing private helper methods with global functions in Python? [closed]
In Python there is no real notion of private access. It's merely suggested by social convention with _ prepended in method names. ...
1vote
0answers
77views
Check that inputs are valid dates
I have a method in a class that accepts either a datetime or string parameter. It is shown in the last code block (I didn't include the class). A little background is that I am defining a wrapper ...
4votes
1answer
77views
Exporting a merged dataset from multiple source to a downloadable link
I'm working on a use case in hobby project where I am merging data from an external data source with an internal one and exporting that to a downloadable file The use case is exposed in an ...
- 173
1vote
0answers
54views
Scraping online store and writing to database
I'm making a project that will scrape some online store for an item, gets the data and stores it in a remote database that I have, and also able to read the database and display the data on a ...
- 63
4votes
0answers
123views
Sudoku sequence solver for non-standard constraints
This script is designed to help solve sequences in Sudoku puzzles with variant constraints (ex: Thermometer, Renban, etc.). Summary The user specifies the constraints they want applied as well as the ...
- 173
5votes
1answer
76views
Othello game in Tk
I've recently reached a milestone for my Othello clone. This is my first Python project and the farthest I've come to a full program beyond small scripts and little automations. I'd love for you to ...
- 51
2votes
2answers
49views
5votes
1answer
747views
Designing an URL Shortener
Recently I was assigned a URL shortener design problem while interviewing with a well known organization. Here is the exact problem statement: Build a simple URL shortener service that will accept a ...
- 455
2votes
1answer
183views
Stack Exchange Marathon Bot – Part 1: Bot structure
This code review is for my Stack Exchange Marathon Bot project, a Telegram bot for playing a dumb little game involving the Stack Exchange network. Since the codebase is not that small, in this post I ...
- 645
2votes
1answer
158views
Python: separation of concern User Model and User DB
I am working on a small side-project since a couple of weeks, I am using Flask but trying to use as few libraries as possible and no ORMs (for learning purposes. I am currently working on the User ...
1vote
2answers
777views
Factory / Builder Design Pattern in Python
Situation: I have implemented a factory design pattern in Python as below. There are different screens which have different configurations. One can register the screen in the factory and get the ...
- 13
3votes
2answers
802views
Python Back-end registration validation
I'm working on a personal project (Flask CRUD app) and I am currently building the user service. I am trying to use as less as libraries as possible (that's why I do not use WTF-forms for example, ...
