python coding design patterns

Download this blogpost from https://codegive.com
design patterns are reusable solutions to common programming problems. they provide a structured and efficient way to solve recurring issues in software development. in this tutorial, we will explore some commonly used design patterns in python, complete with code examples.
design patterns are categorized into three main groups:
creational patterns: these patterns deal with object creation mechanisms, trying to create objects in a manner suitable to the situation. this involves hiding the complexity of object creation and making the system independent of the object creation process.
structural patterns: these patterns deal with object composition, forming relationships between objects to form larger structures. they focus on how objects and classes can be combined to form new structures.
behavioral patterns: these patterns are concerned with communication between objects, defining how they interact and operate together. they focus on the responsibilities and collaboration between objects.
in this tutorial, we'll discuss examples of each of these categories.
the singleton pattern ensures that a class has only one instance and provides a global point of access to that instance.
the factory method pattern defines an interface for creating an object, but the subclass decides which class to instantiate.
the abstract factory pattern provides an interface for creating families of related or dependent objects without specifying their concrete classes.
the adapter pattern allows the interface of an existing class to be used as another interface.
the decorator pattern allows behavior to be added to individual objects without affecting the behavior of other objects from the same class.
the proxy pattern provides a surrogate or placeholder for another object to control access to it.
the observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
the strategy pattern defines a ...