Dedov - The Python Bible 7 in 1: Volumes One To Seven (Beginner, Intermediate, Data Science, Machine Learning, Finance, Neural Networks, Computer Vision)

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THE

PYTHON BIBLE

7 in 1

BY

Florian Dedov

Copyright 2020

This book is a 7-in-1 version of all the seven volumes of The Python Bible series.

I recommend reading them in the right order, since the volumes build on top of each other.

If you think that this book has brought value to you and helped you on your programming journey, I would appreciate a quick review on Amazon.

Thank you!

TABLE OF CONTENT

Introduction

Why Python?

How to Read This Book

1 Installing Python

Python Installation

Development Environment

Python IDLE

Editor and CLI

PyCharm

2 Our First Program

Hello World

Running The Script

3 Variables and Data Types

Numerical Data Types

Strings

Booleans

Sequences

Creating Variables

Using Variables

Typecasting

4 Operators

Arithmetic Operators

Assignment Operators

Comparison Operators

Logical Operators

Other Operators

5 User Input

Input Function

6 Conditions

If, Elif, Else

Flowchart

Nested If-Statements

7 Loops

While Loop

Endless Loop

For Loop

Range Function

Loop Control Statements

Break Statement

Continue Statement

Pass Statement

8 Sequences

Lists

Accessing Values

Modifying Elements

List Operations

List Functions

Tuples

Tuple Functions

Dictionaries

Accessing Values

Dictionary Functions

Membership Operators

9 Functions

Defining Functions

Parameters

Return Values

Default Parameters

Variable Parameters

Scopes

10 Exception Handling

Try Except

Else Statements

Finally Statements

11 File Operations

Opening and Closing Files

Access Modes

Closing Files

With Statement

Reading From Files

Writing Into Files

Other Operations

Deleting and Renaming

Directory Operations

12 String Functions

Strings as Sequences

Escape Characters

String Formatting

String Functions

Case Manipulating Functions

Count Function

Find Function

Join Function

Replace Function

Split Function

Triple Quotes

Whats Next?

Introduction

This book is the first part of a series that is called the Python Bible. In this series, we are going to focus on learning the Python programming language as effective as possible. The goal is to learn it smart and fast without needing to read thousands of pages. We will keep it simple and precise.

In this first book, we will introduce you to the language and learn the basics. It is for complete beginners and no programming, IT or math skills are needed to understand it. At the end, you will be able to write some simple and interesting programs and you will have the necessary basis to continue with volume two.

Why Python?

One question you might be asking yourself right now is: Why learn Python? Why not Java, C++ or Go?

First of all, a good programmer is fluent in multiple languages, so learning Python doesnt mean that you cant learn C++ or Java additionally. But second of all, Python is probably the best language to start with.

It is extremely simple in its syntax (the way the code is written) and very easy to learn. A lot of things that you need to do manually in other languages are automated in Python.

Besides that, Pythons popularity is skyrocketing. According to the TIOBE-Index, Python is the third most popular language with an upward trend. But also in other rankings, you will see Python near the top.

TIOBE: https://www.tiobe.com/tiobe-index/

Also, Python is the lingua franca of machine learning. This means that it is the one language that is used the most in the areas of artificial intelligence, data science, finance etc. All these topics will be part of this Python Bible series. But since Python is a general-purpose language, the fields of application are numerous.

Last but not least, Python is a very good choice because of its community. Whenever you have some problem or some error in your code, you can go online and find a solution. The community is huge and everything was probably already solved by someone else.

How to Read This Book

In order to get as much value as possible from this book, it is very important that you code the individual examples yourself. When you read and understand a new concept, play around with it. Write some scripts and experiment around. Thats how you learn and grow.

So, stay motivated. Get excited and enjoy your programing journey. If you follow the steps in this book, you will have a solid basis and a decent understanding of the Python language. I wish you a lot of fun and success with your code!

Just one little thing before we start. This book was written for you, so that you can get as much value as possible and learn to code effectively. If you find this book valuable or you think you learned something new, please write a quick review on Amazon. It is completely free and takes about one minute. But it helps me produce more high quality books, which you can benefit from.

Thank you!

1 Installing Python

Now, before we get into the code, we need to install Python and our development environment. Python is a so-called interpreted language. This means that the code needs a certain software (the interpreter) to be executed.

Other languages like C++ or Java are compiled languages. You need a compiler but then the program is converted into machine code and can be executed without extra software. Python scripts cant be executed without a Python interpreter.

Python Installation

First of all, you need to visit the official Python website in order to get the latest version from there.

Python: https://www.python.org/downloads/

Download the installer and follow the instructions. Once you are done, you should have the Python interpreter as well as the IDLE on your computer.

The IDLE is an Integrated Development and Learning Environment . It is the basic editor, where we can write and execute our code. Just open your start menu and look for it.

Development Environment

Python IDLE

When it comes to our development environment, we have many options to choose from. The simplest choice is to just use the default IDLE. It is a great tool for writing the code and it has an integrated interpreter. So, you can execute the code directly in the IDLE. For beginners this is definitely enough. If you choose this option, you can just stick with the basic installation. In this book, we are going to assume that you are using the IDLE.

Editor and CLI

If you prefer to use a specific editor, like Atom, Sublime or VS Code, you can run your code directly from the command line. So you basically write your code in your editor and save the file. Then you run CMD (on Windows) or Terminal (on Linux & Mac). You need to use the following syntax in order to run the code:

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