This repository provides a collection of examples for GoF design patterns. While the patterns can be applied in every object oriented language, here they are implemented in python.
I hope somebody finds this repo useful. For me, it was a great practice to implement them.
While this repository is more like a reading resource, you can execute every example with
python3 -m unittest <path-of-pattern>/test_client.py
You can execute all examples with
./run_all_tests.sh
- Like in the book the patterns are categorized as creational, structural or behavioral.
- The files are named according to the corresponding pattern-"participant" in the book.
- The class names correspond to the respective example.
- The application of each pattern is implemented in a test class
test_client.py.
The patterns were collected and described by Erich Gamma, Richard Helm, Ralph Johnson and John Vlissides - the Gang of Four - in their iconic book Design Patterns: Elements of Object-Oriented Software. If you don't have the book, get it.