pydesignpatterns 0.1.0

All 23 GoF design patterns as reusable, Pythonic, type-safe implementations.

pypatterns

All 23 GoF design patterns as reusable, Pythonic, type-safe implementations.

Installation

pip install pypatterns

Requirements

• Python 3.12+
• Zero dependencies

Quick Start

from pypatterns import singleton, Subject, Builder, registry_factory

# Singleton via decorator
@singleton
class Config:
    def __init__(self):
        self.debug = False

# Observer pattern
subject = Subject[str]()
subject.subscribe(lambda msg: print(f"Got: {msg}"))
subject.notify("hello")

# Factory registry
factory = registry_factory[str, Animal]()
factory.register("dog", lambda: Dog())
factory.register("cat", lambda: Cat())
animal = factory.create("dog")

Patterns Included

Creational

• Singleton, Factory Method, Abstract Factory, Builder, Prototype

Structural

• Adapter, Bridge, Composite, Decorator, Facade, Flyweight, Proxy

Behavioral

• Chain of Responsibility, Command, Iterator, Mediator, Memento, Observer, State, Strategy, Template Method, Visitor

Reference

All patterns follow the catalog at refactoring.guru/design-patterns.

License

MIT