Python Type Hints - Annotate Variables, Functions & Classes (Tutorial #29)
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011:33
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Taught by Celeste AI - AI Coding Coach
View on YouTubeDescription
Learn Python type hints! In this tutorial, you will learn how to annotate your code with types to make it clearer, catch bugs earlier, and improve your development
experience.
What you will learn:
- Variable annotations with str, int, float, and bool
- Function parameter and return type hints
- The typing module: List, Dict, Optional, Union, Tuple
- Type aliases for readable complex types
- Type checking with mypy
Timestamps:
0:00 - Introduction
0:22 - Basic Hints Explained
0:49 - Basic Hints Demo
3:00 - Typing Module Explained
3:27 - Typing Module Demo
6:11 - Task Manager Explained
6:38 - Task Manager Demo
10:02 - Recap
10:37 - End
Source code: https://github.com/GoCelesteAI/python_type_hints
Previous: Lesson 28 - Unit Testing
Next: Lesson 30 - File I/O
Coming soon!
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Python Tutorial for Beginners playlist - Learn Python from scratch with hands-on coding demos.
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PythonType HintsPython Tutorialtyping moduleannotationsmypyListDictOptionalUnionTupletype aliasPython for beginnerslearn Pythoncoding tutorial
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Duration
11:33
Published
February 11, 2026
Added to Codegiz
March 15, 2026