2. Beyond Singletons: Dependency Injection and Other Strategies in Python
   Singletons in PythonIn Python, a singleton is a design pattern that ensures a class has only one instance throughout the program's execution
3. Beyond Singletons: Exploring Dependency Injection and Other Design Techniques
   Singletons in PythonIn Python, a singleton is a design pattern that ensures only a single instance of a class exists throughout your program's execution