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Python Basics

5 lessons

Get started with Python — variables, data types, functions, lists, dictionaries, and modules.

  1. 1

    Python Overview

    What Python is, where it runs, and why it is one of the most popular languages for beginners and professionals alike.

  2. 2

    Python Variables

    How to create and use variables in Python — dynamic typing, naming, and assignment.

  3. 3

    Python Data Types

    Python's core data types: numbers, strings, booleans, lists, tuples, dictionaries, and sets.

  4. 4

    Conditions and Loops

    Making decisions with if/elif/else and repeating with for and while loops.

  5. 5

    Python Functions

    Defining functions with def, parameters, return values, and default arguments.

Build real projects

Apply what you learned by building guided projects with starter code and solutions.

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Decode error messages

Plain-English explanations of common errors — what they mean, why they happen, and how to fix them.

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