What are factory patterns in Python?

What are factory patterns in Python?

Factory patterns are design patterns that provide a way to create objects without specifying the exact class of the object that will be created.

Can you explain the different types of factory patterns?

Sure! The main types are Simple Factory, Factory Method, and Abstract Factory. Each serves different use cases.

When should I use the Factory Method pattern?

Use the Factory Method when you want to delegate the instantiation of objects to subclasses, allowing for more flexibility.

Can you give me a code example of a Factory Method in Python?

Absolutely! Here's a simple example:

class Product:
    def operation(self):
        pass

class ConcreteProductA(Product):
    def operation(self):
        return "Result of ConcreteProductA"

class ConcreteProductB(Product):
    def operation(self):
        return "Result of ConcreteProductB"

class Creator:
    def factory_method(self):
        pass

class ConcreteCreatorA(Creator):
    def factory_method(self):
        return ConcreteProductA()

class ConcreteCreatorB(Creator):
    def factory_method(self):
        return ConcreteProductB()