Python In Depth

Python
In-Depth
Use Python Programming Features, Techniques,
and Modules to Solve Everyday Problems
Ahidjo Ayeva
Kamon Ayeva
Aiman Saeed
www.bpbonline.com
FIRST EDITION 2021
Copyright © BPB Publications, India
ISBN: 978-93-89328-424
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About the Authors
Ahidjo Ayeva is a computer scientist based in Hamburg (Germany). He has got several years of experience in the development of software
applications as a Full-stack developer in Java and Python. His interests focus on data analysis, process automation, and IoT. Since June 2018, he
is also qualified as an SAP Business Intelligence consultant.
Your LinkedIn Profile: https://www.linkedin.com/in/ahidjo-a-070baa179
Kamon Ayeva is a Python Developer / DevOps Engineer based in France. He has been working with Open Source tools from the Python world and
beyond for projects he has been involved with since 2000, mainly web development frameworks such as Zope, Plone CMS, Django, and Flask, and
Data Analytics tools. Via his company, Content Gardening Studio, he spends most of his time helping projects, using Python.
Your Blog links: https://medium.com/@contentgardeningstudio
Your LinkedIn Profile: https://www.linkedin.com/in/kamon-ayeva/
Aiman Saeed is a Computer Science graduate working full time as a developer. He has a keen interest in nascent technologies and loves to write
blogs and talk about its use cases. He thinks anyone and everyone must know how a program works and wants to spread the knowledge he
explores to the community. He wrote his first line of code in his early teen, and he believes he should have started much earlier.
Acknowledgement
I want to start by thanking my family members for their ongoing support. They have always been listening with much interest whenever I was talking
about my work, Python, and this book. That helps a lot to keep the motivation.
I am also grateful that the Python community is so overwhelmingly awesome. There are so many things to learn and experiment with, every day,
that you feel you will still be taking pleasure building with these technologies in 10 years from now.
Finally, my thanks go to the team at BPB Publications.
Preface
Python is a large piece of technology. You have the language syntax itself and related features. You have the interpreter which interprets the
code, and the programmer can run it and start testing his code interactively at the interpreter prompt. You have the built-in modules and functions
which help the programmer create his programs. And these only constitute a part of it.
This book includes 17 chapters to give you an in-depth presentation of the possibilities for solving everyday problems, from simple use cases to
complex ones. The first chapters help you install Python and get started discovering its built-in tools. You will explore the foundations of Python
programming, such as the built-in data types, functions, objects and classes, files, and other data persistence mechanisms available. You will also
explore the different programming paradigms such as OOP, Functional, and Parallel programming and find the best approach given a situation.
You will also learn how to utilize an interchange format to exchange data and understand how to carry out performance optimization, effective
debugging, and security, among other techniques. At the end of the book, the reader will enjoy two chapters dedicated to two domains, where

Python usage is currently very strong: Data Science and Web Development.
This book will be primarily useful to people who are new to software development and want to learn Python. It can also be used by any Python user
for a quick reference for the fundamentals and the features, as well as for finding useful information related to both the Web Development and the
Data Science landscapes.
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Table of Contents
1. Getting Started with Python
Introduction
Structure
Objective
Installation
On Linux, using your package manager

On macOS, using Homebrew
On Linux, using the pyenv tool
On Windows, using the official Windows installer
Using the Python interpreter
A first look at Python
Printing things
Variables
Code indentation
Simple data types
Numeric data
Strings
Booleans
More data types
Lists
Dictionaries
Tuples
Operations
Identity
Variable assignment
Comparison operations
Arithmetic operations
Operations on sequences
Overview of Python’s new features
F-strings
Numeric values with an underscore
An optional type system
Data classes
Asyncio
Other new features
Conclusion
Questions
1. Program Flow and Error Handling
Introduction
Structure
Objective