Python
Intermediate
Design Patterns in Modern Python
Apply modern Creational, Structural, and Behavioral patterns tailored for idiomatic Python 3.
Course Overview
Learn dataclasses, protocols, dependency injection, factory methods, and strategy patterns to write maintainable Python codebases that scale cleanly.
What You Will Learn
Implement Creational patterns: Factory Method, Builder, and Singleton variants
Apply Structural patterns: Adapter, Decorator, Facade, and Composite
Utilize Behavioral patterns: Strategy, Observer, Command, and Chain of Responsibility
Leverage Python 3 features: Dataclasses, Protocols (`typing.Protocol`), and ABCs
Refactor monolithic conditional code into clean, extensible pattern designs
Tools & Technologies Used
Python 3.11
Mypy
Ruff
VS Code
Pytest
Structured Curriculum
2 Modules · 4 Lessons · 175 Minutes Total
Module 1
Module 1: Creational & Structural Pythonic Patterns
2 lessons
Module 1: Creational & Structural Pythonic Patterns
Build flexible object creation and structural adapter abstractions.
-
Factory Methods & Protocol Interfaces
Decouple caller logic from concrete implementations using structural typing.
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The Decorator & Adapter Patterns in Python
Wrap external client libraries into uniform application interfaces.
Module 2
Module 2: Behavioral Patterns & Architectural Decoupling
2 lessons
Module 2: Behavioral Patterns & Architectural Decoupling
Manage object interactions and behavioral delegation cleanly.
-
The Strategy Pattern for Dynamic Business Logic
Replace nested `if/elif` blocks with pluggable strategy classes.
-
Observer & Command Patterns for Event Systems
Implement lightweight event dispatchers and undoable command objects.
Practical Project & Capstone Outcome
🚀 Capstone Project
Extensible Payment & Notification Processing Framework
Design an extensible payment processing library supporting multiple gateways using Factory, Strategy, and Observer design patterns.
Prerequisites
- Python intermediate proficiency
- Basic knowledge of object-oriented concepts
Intended Audience
- Software Engineers wanting to write cleaner, more maintainable Python
- Technical Leads establishing object-oriented architecture guidelines
Instructor Information
N
Nigel Thorne
Course Author & Industry Expert
Nigel Thorne is a Principal Software Architect and author on software craft and Python design patterns.
Frequently Asked Questions
Are these patterns identical to traditional Java GoF patterns?
No. Python's first-class functions and dynamic type system simplify many classic GoF patterns.