Complete Python Lecture Notes

Introduction

• Python is a versatile language, ideal for both beginners and professionals.
• It is widely used in fields like Artificial Intelligence, Machine Learning, Data Science, and Web Development.
• We will start from scratch, progressing to writing substantial Python programs.
• Python is the most loved language in the tech industry and is considered one of the easiest languages to start coding with.

Python Basics

Programming Languages

• Computers do not understand human languages directly; they understand binary (0 and 1) represented by high and low voltages.
• Programming languages like Python, Java, C++, and Javascript translate human-readable code into machine code.
• Python is a high-level, easy-to-understand language but needs interpreters or compilers to convert its code into machine code.
• Python uses an interpreter for this translation.

Installation

1. Python Installation
   • Download Python from python.org.
   • Ensure to check administrative privileges and the python.exe option during installation.
2. Visual Studio Code Installation
   • Download and install VS Code from the official site (visualstudio.com).
   • Use VS Code's integrated terminal for running Python scripts.

Writing and Running Python Code

First Program

print("Hello, World!")

• print() is a function that outputs text to the screen.
• Strings are enclosed in double quotes.
• Use VS Code to write, save (.py extension), and run the Python files.

Variables

• Variables are used to store data, e.g., `name =