Polymorphism_in_Python_Programming_Language

Polymorphism_in_Python_Programming_Language

• 1.
  Polymorphism in Python- Detailed Explanation • An overview of polymorphism with examples and real-life applications.
• 2.
  What is Polymorphism? •• Derived from Greek: 'Poly' (many) + 'Morph' (forms) • • Ability of an object to take multiple forms • • Same function/method behaves differently based on the object
• 3.
  Why is PolymorphismImportant? • • Flexibility and code reusability • • Generalization: One function works for multiple object types • • Enhances readability and maintenance
• 4.
  Types of Polymorphismin Python • 1. Duck Typing • 2. Method Overriding (Runtime Polymorphism) • 3. Operator Overloading
• 5.
  Duck Typing Example •DuckTyping allows objects to be used interchangeably as long as they •implement the required behavior (i.e., they have the expected methods), regardless of the class they belong to. •This is why Python doesn't care about the "type" of the object, but rather if it can perform a certain action.
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  Duck Typing Example classCat: def sound(self): return 'Meow' class Dog: def sound(self): return 'Bark' def animal_sound(animal): print(animal.sound()) animal_sound(Cat()) # Meow animal_sound(Dog()) # Bark
• 7.
  Duck Typing Example Writea program to illustrate duck typing in Python using Banking as a scenario //use google collab if hasattr operator overloading
• 8.
  Method Overriding Example classShape: def area(self): return 0 class Rectangle(Shape): def __init__(self, length, width): self.length = length self.width = width def area(self): return self.length * self.width shape = Shape() rectangle = Rectangle(5, 10) print(shape.area()) # 0 print(rectangle.area()) # 50
• 9.
  Operator Overloading Operator Overloading(also called operator ad-hoc polymorphism) allows you to define or change the behavior of built-in operators (like +, -, *, etc.) for custom classes. •Operator Overloading allows you to use operators (such as +, -, *, etc.) to work with objects of your class, just like they work with primitive data types like integers and strings.
• 10.
  Operator Overloading What isOperator Overloading? In Python, operator overloading allows you to redefine the meaning of standard operators (+, -, *, etc.) when they are used with objects of your own class. This means you can customize how an operator behaves when applied to your objects.
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  Operator Overloading
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  Operator Overloading Example classBook: def __init__(self, pages): self.pages = pages def __add__(self, other): return self.pages + other.pages book1 = Book(150) book2 = Book(200) print(book1 + book2) # 350
• 13.
  We use operatoroverloading when we want to make custom classes behave more like built-in types, especially when using operators such as +, -, *, ==, etc. When Do We Use Operator Overloading?
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  When Do WeUse Operator Overloading?
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  When Do WeUse Operator Overloading?
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  When Do WeUse Operator Overloading?
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  Real-Life Example -Payment System class Payment: def pay(self): pass class CreditCard(Payment): def pay(self): return 'Paid using Credit Card' class Paypal(Payment): def pay(self): return 'Paid using Paypal' def make_payment(payment_method): print(payment_method.pay()) make_payment(CreditCard()) make_payment(Paypal())
• 18.
  Benefits of Polymorphism •Code Reusability: Same interface for multiple object types • Extensibility: Easy to add new classes • Maintenance: Easier to maintain and scale code • Cleaner Code: Reduces complex if-else structures