Book Image

Software Architecture with Python

By : Anand Balachandran Pillai
Book Image

Software Architecture with Python

By: Anand Balachandran Pillai

Overview of this book

This book starts by explaining how Python fits into an application's architecture. As you move along, you will get to grips with architecturally significant demands and how to determine them. Later, you’ll gain a complete understanding of the different architectural quality requirements for building a product that satisfies business needs, such as maintainability/reusability, testability, scalability, performance, usability, and security. You will also use various techniques such as incorporating DevOps, continuous integration, and more to make your application robust. You will discover when and when not to use object orientation in your applications, and design scalable applications. The focus is on building the business logic based on the business process documentation, and understanding which frameworks to use and when to use them. The book also covers some important patterns that should be taken into account while solving design problems, as well as those in relatively new domains such as the Cloud. By the end of this book, you will have understood the ins and outs of Python so that you can make critical design decisions that not just live up to but also surpassyour clients’ expectations.
Table of Contents (18 chapters)
Software Architecture with Python
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Index

Patterns in Python – Structural


Structural patterns concern themselves with the intricacies of combining classes or objects to form larger structures, which are more than the sum of their parts.

Structural patterns implement this by these two distinct ways:

  • By using class Inheritance to compose classes into one. This is the static approach.

  • By using object composition at runtime to achieve combined functionality. This approach is more dynamic and flexible.

Python, by virtue of supporting multiple inheritance, can implement both of these very well. Being a language with dynamic attributes and using the power of magic methods, Python can also do object composition and the resultant method wrapping pretty well also. So, with Python, a programmer is indeed at a good place with respect to implementing structural patterns.

We will be discussing the following structural patterns in this section: Adapter, Facade, and Proxy.

The Adapter pattern

As the name implies, the Adapter pattern wraps or adapts an...