Intro to PySide/PyQt: Basic Widgets and Hello, World!

This installment gives a introduction to the very most basic points of PySide and PyQt. We’ll talk a bit about the kinds of objects they use, and talk through a couple of very simple examples that will give you a basic idea of how Python/Qt applications are constructed. First, a basic overview of Qt objects. […]

Python Decorators Overview

Decorators in Python seem complicated, but they’re very simple. You’ve probably seen them; they’re the odd bits before a function definition that begin with ‘@’, e.g.: [python] def decorator(fn): def inner(n): return fn(n) + 1 return inner @decorator def f(n): return n + 1 [/python] Note the function called decorator; it takes a function as […]

Introduction to Python Classes (Part 2 of 2)

In the first part of this series, we looked at the basics of using classes in Python. Now we’ll take a look at some more advanced topics. Python Class Inheritance Python classes support inheritance, which lets us take a class definition and extend it. Let’s create a new class that inherits (or derives) from the […]

List Comprehension in Python

Sometimes we need to generate lists which follow some natural logic, such as iterating over a sequence and applying some conditions in them. We can use Python’s “list comprehension” technique to write compact codes to generate lists. We can loop through a sequence, and apply logical expression. First, let’s look at a special function range […]

Using the Python Tempfile Module

While programming in Python, there will likely be times where you have some data that needs to be utilized or manipulated in the form of a file but hasn’t yet been written to one. Naturally, the first solution that comes to mind is to open a new or existing file, write the data and finally […]

Introduction to Python Classes (Part 1 of 2)

Classes are a way of grouping related bits of information together into a single unit (also known as an object), along with functions that can be called to manipulate that object (also known as methods). For example, if you want to track information about a person, you might want to record their name, address and […]

Reading and Writing to Files in Python

Manipulating files is an essential aspect of scripting in Python, and luckily for us, the process isn’t complicated. The built-in open function is the preferred method for reading files of any type, and probably all you’ll ever need to use. Let’s first demonstrate how to use this method on a simple text file. For clarity, […]

Python Lists and Tuples

Overview of Python Lists and Tuples Two of the most commonly used built-in data types in Python are the list and the tuple. Lists and tuples are part of the group of sequence data types—in other words, lists and tuples store one or more objects or values in a specific order. The objects stored in […]

Python Dictionary

The Python Dictionary (dict): An Overview Among the built-in Python data types is a very versatile type called a dictionary. The dictionary is similar to lists and tuples because they act as storage units for other objects or variables you’ve created. Dictionaries are different from lists and tuples because the group of objects they hold […]

Object Oriented Programming in Python

Object orientation is a central concept in Python, as well as many other languages. Understanding the concept, and applying it well, will enable you to build much more elegant and manageable software. What is Object Oriented Programming in Python? You’ll often hear it said that, in Python, everything’s an object. It’s pretty much true, with […]

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