How can I implement design patterns in my code?

How can I implement design patterns in my code?

Design patterns are reusable solutions to common problems in software design. Which pattern are you interested in?

I'm particularly interested in the Singleton pattern. Can you explain how to implement it?

Sure! The Singleton pattern ensures a class has only one instance and provides a global point of access to it. In Python, you can implement it like this:

class Singleton:
    _instance = None

    def __new__(cls):
        if cls._instance is None:
            cls._instance = super(Singleton, cls).__new__(cls)
        return cls._instance

What are some use cases for the Singleton pattern?

Common use cases include logging, configuration settings, and managing shared resources like database connections.

Can you give me an example of another design pattern?

Absolutely! The Factory pattern is another popular one. It provides an interface for creating objects in a superclass but allows subclasses to alter the type of objects that will be created.