Python Basics Tutorial

Introduction to Python

Python is a high-level, interpreted programming language known for its readability and versatility. It's widely used in scientific computing, data analysis, artificial intelligence, web development, and many other fields.

This tutorial series will guide you through the fundamentals of Python programming, starting with the basics and gradually moving to more advanced topics.

Setting Up Python

Before we begin coding, you'll need to install Python on your computer. Python is available for Windows, macOS, and Linux.

Installation Steps:

1. Visit the official Python website
2. Download the latest version for your operating system
3. Run the installer and follow the instructions
4. Make sure to check "Add Python to PATH" during installation

To verify your installation, open a terminal or command prompt and type:

python --version

You should see the Python version number displayed.

Variables and Data Types

In Python, variables are used to store data values. Unlike some other programming languages, Python has no command for declaring a variable. A variable is created the moment you first assign a value to it.

Basic Data Types:

• Integers: Whole numbers without decimal points
• Floats: Numbers with decimal points
• Strings: Text enclosed in quotes
• Booleans: True or False values

Control Structures

Control structures allow you to control the flow of your program based on conditions.

Main Control Structures:

• if-elif-else: Conditional execution
• for loops: Iteration over sequences
• while loops: Repeated execution while a condition is true

Functions

Functions are blocks of reusable code that perform a specific task. They help in organizing your code and making it more modular.

Function Topics:

• Defining functions
• Parameters and arguments
• Return values
• Scope of variables