Tagged Questions

0
votes
2answers
54 views

How to create different paths for users to take through the pages in my site?

I have a website where users are directed to go through a sequence of pages to perform a sequence of work tasks (transcribe a paragraph, answer a survey, interact with another user, etc). For short, ...
4
votes
4answers
216 views

Returning a boolean when success or failure is the sole concern

I often find myself returning a boolean from a method, that's used in multiple locations, in order to contain all the logic around that method in a single place. All the (internal) calling method ...
0
votes
0answers
37 views

Python web application frontend for equipment diagnostics and interaction

My goal is to have a Python application that runs a web server which hosts the user interface, and based on interactions from a user in their browser, long running tasks get kicked off and through ...
2
votes
1answer
175 views

Python, magic and objects that add attributes to its owner

Let me start with a disclaimer: I'm not the best programmer out there. I do however study I.T. and learnt a bit of Java and C. I'm getting stuck into Python and Django + Mongoengine, I'm not going to ...
4
votes
2answers
163 views

Designing a function with many optional components

I'm trying to figure out a good practice for designing a function with (many) optional components. For a specific example, say I am interested in designing a feature extractor function that takes as ...
2
votes
2answers
133 views

Changing __class__ in a factory?

I'm parsing a set of XML files of different kinds (these kinds are known in advance). These are my requirements: I want an object to represent each XML document (object-xml mapping) I'd rather ...
1
vote
3answers
214 views

Hacking Python “Requests” library.. How to start as an intermediate pythonista?

My question is conceptual, yet extremely vital for me. I'm an intermediate Python developer. I know fair enough about it, and actually use it on a daily basis. Now, I would like to transform my ...
3
votes
4answers
232 views

Representing complex object dependencies

I have several classes with a reasonably complex (but acyclic) dependency graph. All the dependencies are of the form: class X instance contains an attribute of class Y. All such attributes are set ...
2
votes
2answers
329 views

Caching factory design

I have a factory class XFactory that creates objects of class X. Instances of X are very large, so the main purpose of the factory is to cache them, as transparently to the client code as possible. ...
50
votes
8answers
8k views

Are there any design patterns that are unnecessary in dynamic languages like Python?

I've started reading the design pattern book by the GoF. Some patterns seem very similar with only minor conceptual differences. Do you think out of the many patterns some are unnecessary in a ...
3
votes
4answers
969 views

What is the simplest human readable configuration file format?

Current configuration file is as follows: mainwindow.title = 'test' mainwindow.position.x = 100 mainwindow.position.y = 200 mainwindow.button.label = 'apply' mainwindow.button.size.x = 100 ...
3
votes
4answers
340 views

What is the proper name for this design pattern in Python?

In Python, is the proper name for the PersonXXX class below PersonProxy, PersonInterface, etc? import rest class PersonXXX(object): def __init__(self,db_url): self.resource = ...
6
votes
2answers
2k views

Python programming patterns and practices?

What are the best python programming patterns and practices you are using every day? I don't mean only design patterns (there are lot of OO design patterns that can be used in python), I mean pure ...