Book Image

Python for Geeks

By : Muhammad Asif
Book Image

Python for Geeks

By: Muhammad Asif

Overview of this book

Python is a multipurpose language that can be used for multiple use cases. Python for Geeks will teach you how to advance in your career with the help of expert tips and tricks. You'll start by exploring the different ways of using Python optimally, both from the design and implementation point of view. Next, you'll understand the life cycle of a large-scale Python project. As you advance, you'll focus on different ways of creating an elegant design by modularizing a Python project and learn best practices and design patterns for using Python. You'll also discover how to scale out Python beyond a single thread and how to implement multiprocessing and multithreading in Python. In addition to this, you'll understand how you can not only use Python to deploy on a single machine but also use clusters in private as well as in public cloud computing environments. You'll then explore data processing techniques, focus on reusable, scalable data pipelines, and learn how to use these advanced techniques for network automation, serverless functions, and machine learning. Finally, you'll focus on strategizing web development design using the techniques and best practices covered in the book. By the end of this Python book, you'll be able to do some serious Python programming for large-scale complex projects.
Table of Contents (20 chapters)
1
Section 1: Python, beyond the Basics
5
Section 2: Advanced Programming Concepts
9
Section 3: Scaling beyond a Single Thread
13
Section 4: Using Python for Web, Cloud, and Network Use Cases

Executing TDD

TDD is a well-known practice in software engineering. This is a software development approach in which test cases are written first before writing any code for a required feature in an application. Here are the three simple rules of TDD:

  • Do not write any functional code unless you write a unit test that is failing.
  • Do not write any additional code in the same test more than you need to make the test fail.
  • Do not write any functional code more than what is needed to pass a failing test.

These TDD rules also drive us to follow a famous three-phase approach of software development called Red, Green, Refactor. The phases are repeated continuously for TDD. These three phases are shown in Figure 5.4 and are described next.

Red

In this phase, the first step is to write a test without having any code to test. The test will obviously fail in this case. We will not try to write a complete test case but only write enough code to fail the test.

Green...