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from abc import ABC, abstractmethod # 1. The Strategy Interface class PaymentStrategy(ABC): @abstractmethod def pay(self, amount): pass # 2. Concrete Strategies class PayPalPayment(PaymentStrategy): def pay(self, amount): print(self, f"Paying $amount using PayPal.") class StripePayment(PaymentStrategy): def pay(self, amount): print(f"Paying $amount using Stripe.") # 3. The Context class Checkout: def __init__(self, strategy: PaymentStrategy): self.strategy = strategy def process_order(self, amount): self.strategy.pay(amount) # Execution cart = Checkout(StripePayment()) cart.process_order(150) Use code with caution. dive into design patterns pdf github

: New developers might over-engineer small projects by applying too many patterns at once. GitHub & Community Resources While the book itself is a paid product on Refactoring.Guru GitHub & Community Resources While the book itself

Use your preferred architectural guide or PDF documentation to understand the structural theory and class diagrams of a pattern (e.g., the Strategy Pattern ). embedded malicious scripts

categorized into Creational, Structural, and Behavioral groups. Foundation First

Address communication between objects, defining how responsibilities are distributed across a system (e.g., Observer, Strategy, Command). Deep Dive: 3 Essential Design Patterns with Code Examples