Do you use pattern principles in your project development?

Yes, I try to apply design patterns in my projects to make the code more readable, maintainable, and extensible. For example, I use Singleton to manage access to a single resource, or Factory to create objects without tight coupling to specific classes. This helps structure the code and facilitates teamwork.

Example of Singleton pattern in Python:

class Singleton:
    _instance = None

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

# Usage
obj1 = Singleton()
obj2 = Singleton()
print(obj1 is obj2)  # True

Using design patterns helps create more reliable and maintainable code by limiting access to internal implementation details.