◀ Your Dojos Python · Stage Select

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Four worlds. Twenty-four stages. Real Python, running in this tab.

Every stage is a lesson you read, a lab you type into, and one graded assignment that decides whether the stage clears. Nothing to install. Stages open in order, because each one leans on the last — and clearing all 24 earns the Python Practitioner certificate.

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World 1

First Steps

6 Stages

Everything you need to write a small program that works: printing, naming things, the handful of value types Python has, text, input, and arithmetic. No prior experience assumed, and nothing skipped.

1

Hello, Python

Write and run your first program, make it speak with print(), leave notes with comments, and learn to read an error instead of panicking at it.

print() Comments Tracebacks
2

Variables & Names

Store a value under a name so you can use it again, change it later, and describe what it means to the next person who reads the code.

Assignment Naming Reassignment
3

Numbers, Text & Booleans

Python's four everyday value types, how to tell which one you have, and how to convert between them on purpose rather than by accident.

int & float str & bool Conversion
4

Working with Text

Cut, join, search, clean and reshape text with the string methods you will reach for every day, and format results with f-strings.

Slicing Methods f-strings
5

Input & Output

Ask a person a question, take their answer, turn it into the right kind of value, and hand back a result they can actually read.

input() int() & float() Formatting
6

Math & Comparisons

Arithmetic including the two division operators everybody trips over, comparisons that produce True or False, and the order Python does things in.

// and % Comparisons and / or / not
World 2

Logic & Collections

In the works

Can make a program decide, repeat and remember: conditions, loops, and the four core collections Python leans on.

  • 2-01 Making Decisions
  • 2-02 for Loops
  • 2-03 while Loops
  • 2-04 Lists
  • 2-05 Dictionaries
  • 2-06 Tuples & Sets
World 3

Building Blocks

In the works

Can break a program into reusable functions, handle its failures on purpose, and pull in code written by other people.

  • 3-01 Functions
  • 3-02 Arguments & Scope
  • 3-03 Comprehensions
  • 3-04 Errors & Exceptions
  • 3-05 Modules & the Standard Library
  • 3-06 Reading & Writing Files
World 4

Real Python

In the works

Can model a problem with classes and data structures, write the modern idioms, and ship a small tool end to end.

  • 4-01 Classes & Objects
  • 4-02 Dataclasses & Type Hints
  • 4-03 Iterators & Generators
  • 4-04 Modern Python
  • 4-05 Working with Data
  • 4-06 Capstone: Build a Tool