Book Image

Metaprogramming with Python

By : Sulekha AloorRavi
Book Image

Metaprogramming with Python

By: Sulekha AloorRavi

Overview of this book

Effective and reusable code makes your application development process seamless and easily maintainable. With Python, you will have access to advanced metaprogramming features that you can use to build high-performing applications. The book starts by introducing you to the need and applications of metaprogramming, before navigating the fundamentals of object-oriented programming. Next, you will learn about simple decorators, work with metaclasses, and later focus on introspection and reflection. You’ll also delve into generics and typing before defining templates for algorithms. As you progress, you will understand your code using abstract syntax trees and explore method resolution order. This Python book also shows you how to create your own dynamic objects before structuring the objects through design patterns. Finally, you will learn simple code-generation techniques along with discovering best practices and eventually building your own applications. By the end of this learning journey, you’ll have acquired the skills and confidence you need to design and build reusable high-performing applications that can solve real-world problems.
Table of Contents (21 chapters)
1
Part 1: Fundamentals – Introduction to Object-Oriented Python and Metaprogramming
4
Part 2: Deep Dive – Building Blocks of Metaprogramming I
11
Part 3: Deep Dive – Building Blocks of Metaprogramming II

Checking whether an object is an instance

In this section, we will look at another function named isinstance, which can be used to check whether an object is an instance of a particular class. As we are covering introspection in this chapter, we are more focused on what functions are available to introspect an object rather than how these functions can be used further to manipulate or debug a piece of code. Chapter 6, will cover the usage of these functions on metaprogramming along with examples.

In the preceding section, we created a class named Inventory. In this section, we can continue using the same class and create another object for the class. This is shown as follows:

inventory_fmcg = Inventory(100011,
                'Delmonte Ketchup',
                '09/04/2021',
  &...