Python Design Patterns: Collections A collection can be defined as an unordered collection that is iterable, mutable, and contains no duplicate elements. In Python, the Set class is a notation for a mathematical set. The main advantage of using a…
Python Design Patterns: Factory Pattern The factory pattern falls under the category of creational patterns. It provides one of the best ways to create objects. In the factory pattern, object creation logic doesn’t need to be exposed to clients, but…
Python Design Patterns: Object-Oriented Design The object-oriented design pattern is the most commonly used design pattern. This pattern can be found in almost every programming language. How to Implement the Object-Oriented Design Pattern Now let’s look at how to implement…
Python Design Patterns: Dictionaries A dictionary is a data structure that consists of a key-value pair. These are widely used as an alternative to JSON – JavaScript Object Notation. Dictionaries are used in API (Application Programming Interface) programming. A dictionary…
Python Design Patterns: Prototype Pattern The Prototype design pattern helps hide the complexity of instances created by a class. The concept of an existing object is different from the concept of a new object, which is created from scratch. If…
Python Design Patterns: Introduction Design patterns are used to represent patterns that developers use to create software or web applications. These patterns are selected based on requirements analysis. They describe solutions to problems, when and where to apply the solution,…
Python Design Patterns: Exception Handling Handling exceptions is also a key design pattern. Exceptions are errors that occur during program execution. When a specific error occurs, it’s important to generate an exception. This helps prevent program crashes. Why Use Exceptions…
Python Design Patterns: Command Pattern The Command pattern adds a level of abstraction between actions, including an object that invokes those actions. In this design pattern, the client creates a command object, which contains a list of commands to be…
Python Design Patterns: Implementing Object-Oriented Concepts In this chapter, we’ll focus on patterns that use object-oriented concepts and their implementation in Python. When we design our programs around blocks of statements that operate on data, organized around functions, this is…
Python Design Patterns: Singleton Pattern This pattern restricts the instantiation of a class to a single object. It is a creational pattern that involves only one class to create methods and specify objects. It provides a global access point for…