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

Other tools


In this section, we will discuss a few more tools that will aid the programmer in debugging memory leaks and also enable him to visualize his objects and their relations.

Objgraph

Objgraph (object graph) is a Python object visualization tool that makes use of the graphviz package to draw object reference graphs.

It is not a profiling or instrumentation tool but can be used along with such tools to visualize object trees and references in complex programs while hunting for elusive memory leaks. It allows you to find out references to objects to figure out what references are keeping an object alive.

As with almost everything in the Python world, it is installable via pip:

$ pip3 install objgraph

However objgraph is really useful only if it can generate graphs. Hence we need to install the graphviz package and the xdot tool.

In a Debian/Ubuntu system, you will install this as follows:

$ sudo apt install graphviz xdot -y

Let's look at a simple example of using objgraph to find out hidden...