Learn Python

Why learn Python?

Python is the world's most popular programming language — used in web development, data science, machine learning, automation, and scripting. Companies like Google, Netflix, Instagram, and Spotify rely on Python. Its clean syntax makes it the ideal first language, and its vast ecosystem means you can build almost anything.

What you'll learn in this Python tutorial

This free, interactive Python course covers variables, data types, control flow, loops, functions, lists, dictionaries, tuples, classes, inheritance, encapsulation, dunder methods, dataclasses, generators, modules, error handling, JSON, HTTP requests, and async programming — all by writing and running real Python code in your browser.

24 topics · 213 hands-on lessons · all levels

Python tutorial topics

1. 1Getting StartedWrite your first Python program. No setup required — just you and the editor. · 10 lessons · 15 min
2. 2VariablesStore information so your program can use it, change it, and reuse it. · 10 lessons · 18 min
3. 3Data TypesEvery value in Python has a type. Learn them all — strings, integers, floats, bo… · 12 lessons · 20 min
4. 4Print & FormattingPrint things properly. f-strings, format(), padding, precision — control every d… · 12 lessons · 18 min
5. 5Control FlowMake your program smart. Teach it to make decisions with if, elif, and else. · 11 lessons · 20 min
6. 6Logical OperatorsCombine conditions. and, or, not, in, is — the connectives that make decisions p… · 10 lessons · 16 min
7. 7LoopsStop writing the same code ten times. for and while loops do the repetition for … · 11 lessons · 20 min
8. 8ListsStore multiple values in one variable. Lists are Python's most-used data structu… · 10 lessons · 22 min
9. 9TuplesLike a list, but locked. Tuples are immutable — perfect for data that should nev… · 8 lessons · 16 min
10. 10DictionariesStore data by name instead of position. Dictionaries give every value a meaningf… · 10 lessons · 20 min
11. 11FunctionsWrite once, run anywhere. Functions are the building blocks of every real progra… · 11 lessons · 22 min
12. 12Scope & ReferencesWhere variables live and how Python passes data. The stuff that trips up every i… · 8 lessons · 18 min
13. 13Classes & ObjectsBundle data and behaviour together. This is where Python gets really powerful. · 8 lessons · 22 min
14. 14InheritanceBuild on top of existing classes. Extend, override, and reuse without copying co… · 6 lessons · 20 min
15. 15EncapsulationHide the internals. Control access with properties, getters, setters, and privat… · 6 lessons · 18 min
16. 16Dunder MethodsMake your classes feel like built-ins. __str__, __repr__, __len__, __eq__, and o… · 8 lessons · 20 min
17. 17DataclassesLess boilerplate, more clarity. @dataclass generates __init__, __repr__, and __e… · 7 lessons · 16 min
18. 18Protocols & ABCsWrite code that works with anything. Duck typing, Protocol, and ABC — Python's a… · 7 lessons · 20 min
19. 19Error HandlingThings go wrong. Handle it gracefully with try, except, else, finally, and custo… · 9 lessons · 20 min
20. 20Modules & PackagesSplit code across files. Import from the standard library. Install third-party p… · 8 lessons · 18 min
21. 21Generators & IteratorsProcess infinite sequences without running out of memory. yield changes everythi… · 7 lessons · 18 min
22. 22Async & ConcurrencyDo multiple things at once without threads. async/await and asyncio make concurr… · 8 lessons · 22 min
23. 23HTTP in PythonMake HTTP requests and build simple servers. requests, urllib, and http.server. · 8 lessons · 20 min
24. 24JSON in PythonSpeak the language of APIs. json.loads, json.dumps, nested data, and custom seri… · 8 lessons · 16 min

Who is this Python course for?

Absolute beginners learning to code for the first time, developers who want to add Python to their toolkit, and anyone preparing for Python coding interviews or data science roles.