What is the Strategy Pattern in Python?

Can you explain the Strategy Pattern in Python?

Sure! The Strategy Pattern is a behavioral design pattern that enables selecting an algorithm's behavior at runtime.

How do I implement it in my Python code?

You can implement it by defining a strategy interface and concrete strategy classes that implement this interface.

Can you provide a code example?

Absolutely! Here's a simple example:

class Strategy:
    def execute(self, data):
        pass

class ConcreteStrategyA(Strategy):
    def execute(self, data):
        return data + 1

class ConcreteStrategyB(Strategy):
    def execute(self, data):
        return data * 2

class Context:
    def __init__(self, strategy: Strategy):
        self.strategy = strategy

    def set_strategy(self, strategy: Strategy):
        self.strategy = strategy

    def execute_strategy(self, data):
        return self.strategy.execute(data)

context = Context(ConcreteStrategyA())
print(context.execute_strategy(5))  # Output: 6
context.set_strategy(ConcreteStrategyB())
print(context.execute_strategy(5))  # Output: 10