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Python GUI Programming Cookbook

Python GUI Programming Cookbook

By : Burkhard Meier
4.4 (11)
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Python GUI Programming Cookbook

Python GUI Programming Cookbook

4.4 (11)
By: Burkhard Meier

Overview of this book

Python is a multi-domain, interpreted programming language. It is a widely used general-purpose, high-level programming language. It is often used as a scripting language because of its forgiving syntax and compatibility with a wide variety of different eco-systems. Its flexible syntax enables developers to write short scripts while at the same time, they can use object-oriented concepts to develop very large projects. Python GUI Programming Cookbook follows a task-based approach to help you create beautiful and very effective GUIs with the least amount of code necessary. This book uses the simplest programming style, using the fewest lines of code to create a GUI in Python, and then advances to using object-oriented programming in later chapters. If you are new to object-oriented programming (OOP), this book will teach you how to take advantage of the OOP coding style in the context of creating GUIs written in Python. Throughout the book, you will develop an entire GUI application, building recipe upon recipe, connecting the GUI to a database. In the later chapters, you will explore additional Python GUI frameworks, using best practices. You will also learn how to use threading to ensure your GUI doesn’t go unresponsive. By the end of the book, you will be an expert in Python GUI programming to develop a common set of GUI applications.
Table of Contents (13 chapters)
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12
Index

Creating robust GUIs using unit tests


Python comes with a built-in unit testing framework and, in this recipe, we will start to use this framework to test our Python GUI code.

Before we start to write unit tests, we want to design our testing strategy. We could easily intermix the unit tests with the code they are testing, but a better strategy is to separate the application code from the unit test code.

Note

PyUnit has been designed according to the principles of all the other xUnit testing Frameworks.

Getting ready

We will test the internationalized GUI we created earlier in this chapter.

How to do it...

In order to use Python's built-in unit testing framework, we have to import the Python unittest module. Let's create a new module and name it UnitTests.py.

We first import the unittest module, then we create our own class and within this class we inherit and extend the unittest.TestCase class.

The simplest code to do it looks like this:

import unittest

class GuiUnitTests(unittest.TestCase):
  ...
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Python GUI Programming Cookbook
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