Explores the singleton design pattern in Python through a practical leaderboard example. Demonstrates how to implement a singleton class using __new__() and __init__() methods, but argues that Python's module system provides simpler alternatives. Presents three alternative approaches: creating a single instance in a module,
Table of contents
What’s a Singleton?Creating a Leaderboard • First AttemptCreating a Leaderboard • Second Attempt Using a Singleton ClassWe’ve Learnt Stuff By Creating a SingletonAlternative to the Singleton Class • Move The Class to a New ModuleSometimes, You Can Simplify FurtherNeed More Flexibility and Future-Proof Code?Final WordsAppendix: Code BlocksSort: