class Borrower: def __init__(self, name, ID): self.name = name self.ID = ID self.borrowing_history = []
Introduces common patterns (e.g., Factory, Singleton, Observer) as proven solutions to recurring design problems. 5th Edition Key Updates Modern Practices: New and expanded coverage of SOLID principles and avoiding high coupling in class design. Design Patterns: class Borrower: def __init__(self, name, ID): self