Python Tutorial

Python is one of the easiest programming languages to learn — and one of the most powerful. It's used everywhere: web apps, AI, data science, automation, scripting.

This tutorial covers everything you need to be productive in Python, from your first print("Hello") to writing your own decorators and classes. Every code block has a ▶ Run button — you can edit and execute the code right in your browser, no installation required.

Topics

#	Topic	Read
1	Introduction — Hello world, indentation	01-introduction
2	Variables, Data Types & Literals	02-variables-types-literals
3	Comments, Input & Type Conversion	03-comments-input-output
4	Operators	04-operators
5	Conditional Statements (if / elif / else)	05-conditionals
6	Loops — for, while, break, continue	06-loops
7	Functions, Recursion, Lambda, Map/Filter/Reduce	07-functions
8	Strings	08-strings
9	Lists	[09-lists.md)
10	Tuples & Sets	10-tuples-sets
11	Dictionaries	11-dictionaries
12	Modules & Built-in Functions	12-modules-builtins
13	Object-Oriented Programming (OOP)	13-oop
14	File Handling	14-file-handling
15	Exception Handling	15-exception-handling
16	Iterators, Generators & Decorators	16-iterators-generators-decorators

How this tutorial is organized

Each topic follows the same beginner-friendly format:

1. Short intro — what it is, why it matters.
2. Runnable examples — every code block has a ▶ Run button. Edit and re-run freely.
3. Common pitfalls — what beginners typically get wrong.
4. Mini-project — a small real example using the concept.
5. Next link — pointer to the next topic.

Prerequisites

None. If you can use a keyboard and a browser, you can do this tutorial.

Tips for learning

• Read, then DO. Don't just read examples — change them, break them, see what happens.
• One topic per session. Don't try to learn it all in a day.
• Type the code yourself. Copy-paste teaches you nothing.
• Make tiny projects. Apply each new concept to a small problem of your own.

Ready? → Start with Introduction