Python Method Overriding - Complete Guide with Examples

What You'll Learn Here

What is method overriding — redefining parent class methods in child classes
Why we need it — customizing behavior for specific child classes
How it works — the mechanics of overriding
super() method — calling parent methods from child classes
Constructor overriding — working with __init__ in child classes
Real-world use — practical examples you can use

What is Method Overriding?

Method overriding is a feature in Python that allows a child class to redefine a method that it inherited from its parent class. When you override a method, you're telling Python: "I want this method to work differently for this specific child class."

Think of it like a family recipe. Your grandmother's recipe (parent class) is great, but you want to add your own twist to it. You still use the same basic ingredients and steps, but you change a few things to make it your own. That's exactly what method overriding is — taking what you inherited and making it better suited for your needs.

Method overriding is a key part of polymorphism — the ability to use the same method name across different classes, but each class implements it differently.

💡 Key concept: Method overriding allows child classes to provide their own implementation of a method that's already defined in the parent class. It's like customizing something you inherited to fit your specific needs.

Why Do We Need Method Overriding?

Customizing Behavior for Each Child

Without method overriding, all child classes would have the exact same behavior. But in real life, different types need different behavior. A dog and a cat both make sounds, but they make different sounds. Method overriding lets you give each child its own unique behavior while still being part of the same family.

# Method overriding in action

class Animal:
    """Parent class - all animals share this"""
    
    def __init__(self, name):
        self.name = name
    
    def make_sound(self):
        return f"{self.name} makes a generic sound"
    
    def move(self):
        return f"{self.name} moves somehow"
    
    def eat(self):
        return f"{self.name} eats food"

# Without overriding — all animals behave the same
class GenericAnimal(Animal):
    pass

generic = GenericAnimal("Something")
print(generic.make_sound())  # Something makes a generic sound

# WITH overriding — each animal has its own behavior
class Dog(Animal):
    def make_sound(self):
        return f"{self.name} says Woof!"
    
    def move(self):
        return f"{self.name} runs on four legs"
    
    def eat(self):
        return f"{self.name} eats dog food"

class Cat(Animal):
    def make_sound(self):
        return f"{self.name} says Meow!"
    
    def move(self):
        return f"{self.name} walks silently"
    
    def eat(self):
        return f"{self.name} eats cat food"

class Bird(Animal):
    def make_sound(self):
        return f"{self.name} says Chirp!"
    
    def move(self):
        return f"{self.name} flies in the sky"
    
    def eat(self):
        return f"{self.name} eats seeds"

# Using overridden methods
print("=== DOG ===")
dog = Dog("Buddy")
print(dog.make_sound())  # Buddy says Woof!
print(dog.move())        # Buddy runs on four legs
print(dog.eat())         # Buddy eats dog food

print("\n=== CAT ===")
cat = Cat("Whiskers")
print(cat.make_sound())  # Whiskers says Meow!
print(cat.move())        # Whiskers walks silently
print(cat.eat())         # Whiskers eats cat food

print("\n=== BIRD ===")
bird = Bird("Tweety")
print(bird.make_sound()) # Tweety says Chirp!
print(bird.move())       # Tweety flies in the sky
print(bird.eat())        # Tweety eats seeds

print("\n✅ Method overriding gives each animal its own unique behavior!")
print("All animals have the same method names, but different implementations.")

Why override methods:

Customization — each child can behave differently
Flexibility — you can change behavior without changing parent class
Polymorphism — same method name, different implementations
Real-world modeling — different types have different behaviors
Code reuse — still inherits common methods, overrides only what's different

Quick Check: Why would you override a method in a child class? (Answer: To customize behavior for that specific child class)

How Method Overriding Works

Understanding the Mechanics

When you call a method on an object, Python looks for it in a specific order. It first checks the child class. If the method exists there, Python uses it — that's method overriding in action. If it doesn't find it there, it goes up to the parent class.

This is called the method lookup chain. It's how Python decides which version of a method to use. The child's version always takes priority if it exists.

# How method overriding works

class Parent:
    def greet(self):
        return "Hello from Parent"
    
    def farewell(self):
        return "Goodbye from Parent"
    
    def common(self):
        return "This is common to everyone"

class Child(Parent):
    # Overriding the greet method
    def greet(self):
        return "Hello from Child (overridden!)"
    
    # Not overriding farewell — uses parent's version
    # Not overriding common — uses parent's version

class Grandchild(Child):
    # Overriding the greet method again
    def greet(self):
        return "Hello from Grandchild (overridden again!)"
    
    # Overriding farewell too
    def farewell(self):
        return "Goodbye from Grandchild"

# Testing the lookup chain
print("=== PARENT OBJECT ===")
parent = Parent()
print(f"greet(): {parent.greet()}")
print(f"farewell(): {parent.farewell()}")
print(f"common(): {parent.common()}")

print("\n=== CHILD OBJECT ===")
child = Child()
print(f"greet(): {child.greet()}")        # Child's version
print(f"farewell(): {child.farewell()}")  # Parent's version (not overridden)
print(f"common(): {child.common()}")      # Parent's version (not overridden)

print("\n=== GRANDCHILD OBJECT ===")
grandchild = Grandchild()
print(f"greet(): {grandchild.greet()}")        # Grandchild's version
print(f"farewell(): {grandchild.farewell()}")  # Grandchild's version (overridden)
print(f"common(): {grandchild.common()}")      # Parent's version (not overridden)

print("\n=== LOOKUP CHAIN ===")
print("When grandchild.greet() is called:")
print("1. Python checks Grandchild class → found it!")
print("2. Uses Grandchild's version")
print("\nWhen grandchild.farewell() is called:")
print("1. Python checks Grandchild class → not found")
print("2. Checks Child class → not found")
print("3. Checks Parent class → found it!")
print("4. Uses Parent's version")

print("\nThe first matching method found in the chain is used.")

How method overriding works:

Child first — Python looks in the child class first
Parent next — if not found in child, looks in parent
Continues up — keeps going up the inheritance chain
First match wins — the first method found is used
Overriding means replacing — the child's version replaces the parent's

Quick Check: Where does Python first look for a method when called on an object? (Answer: In the object's class first, then up the inheritance chain)

Using super() to Call Parent Methods

Accessing the Parent's Version

Sometimes you want to extend the parent's behavior rather than completely replace it. That's where super() comes in. super() allows you to call the parent class's version of a method from inside the child class.

This is like saying: "Do what the parent does, but also do this extra stuff." It's very useful when you want to add to the parent's behavior rather than change it completely.

# Using super() to call parent methods

class Vehicle:
    def __init__(self, brand, model):
        self.brand = brand
        self.model = model
        self.is_running = False
    
    def start(self):
        self.is_running = True
        return f"Engine started for {self.brand} {self.model}"
    
    def stop(self):
        self.is_running = False
        return f"Engine stopped for {self.brand} {self.model}"
    
    def get_info(self):
        return f"{self.brand} {self.model}"

# Child class that uses super() to extend parent behavior
class ElectricCar(Vehicle):
    def __init__(self, brand, model, battery_capacity):
        # Call parent __init__ first
        super().__init__(brand, model)
        self.battery_capacity = battery_capacity
        self.charge_level = 100
    
    def start(self):
        # Call parent's start method first
        parent_result = super().start()
        # Then add electric car specific behavior
        return f"{parent_result} with {self.charge_level}% battery"
    
    def stop(self):
        parent_result = super().stop()
        return f"{parent_result} (electric motors disengaged)"
    
    def get_info(self):
        # Get parent's info and add battery info
        parent_info = super().get_info()
        return f"{parent_info} with {self.battery_capacity}kWh battery"

# Child class that uses super() with additional parameters
class SportsCar(Vehicle):
    def __init__(self, brand, model, horse_power, top_speed):
        super().__init__(brand, model)
        self.horse_power = horse_power
        self.top_speed = top_speed
        self.sport_mode = False
    
    def start(self):
        parent_result = super().start()
        self.sport_mode = True
        return f"{parent_result} in sport mode! 🏎️"
    
    def get_info(self):
        return f"{super().get_info()} ({self.horse_power}HP, {self.top_speed}mph)"

# Using the classes
print("=== ELECTRIC CAR ===")
tesla = ElectricCar("Tesla", "Model 3", 75)
print(tesla.start())    # Engine started... with 100% battery
print(tesla.get_info()) # Tesla Model 3 with 75kWh battery
print(tesla.stop())     # Engine stopped (electric motors disengaged)

print("\n=== SPORTS CAR ===")
ferrari = SportsCar("Ferrari", "F8", 710, 211)
print(ferrari.start())  # Engine started... in sport mode!
print(ferrari.get_info()) # Ferrari F8 (710HP, 211mph)

print("\n✅ super() lets you call the parent's version while adding your own!")
print("This is called 'extending' behavior rather than replacing it.")

super() key points:

Extends behavior — adds to parent's behavior instead of replacing it
Maintains parent logic — ensures parent's code still runs
Constructor chaining — essential for proper initialization
Follows MRO — works correctly with multiple inheritance
Code reuse — don't duplicate parent's code

Quick Check: When should you use super() in an overridden method? (Answer: When you want to extend the parent's behavior rather than completely replace it)

Overriding Constructors

Working with init in Child Classes

The __init__ method (constructor) is just like any other method — you can override it in child classes. When you do, it's very important to call the parent's __init__ using super().__init__(). Otherwise, the parent's attributes won't be initialized.

Think of it like building a house. The parent class lays the foundation and builds the walls. The child class adds the roof and finishes the interior. You need the foundation and walls first — that's why you call the parent's constructor first.

# Overriding constructors

class Product:
    """Parent class - basic product"""
    
    def __init__(self, product_id, name, price):
        print(f"Product.__init__ called for {name}")
        self.product_id = product_id
        self.name = name
        self.price = price
        self.in_stock = True
    
    def get_info(self):
        return f"ID: {self.product_id}, Name: {self.name}, Price: ${self.price}"

# Good child class — calls super().__init__()
class ElectronicProduct(Product):
    def __init__(self, product_id, name, price, brand, warranty_years):
        # MUST call parent's __init__ first
        super().__init__(product_id, name, price)
        print(f"ElectronicProduct.__init__ called for {name}")
        self.brand = brand
        self.warranty_years = warranty_years
    
    def get_info(self):
        return f"{super().get_info()}, Brand: {self.brand}, Warranty: {self.warranty_years} years"

# Bad child class — forgets to call super().__init__()
class BrokenProduct(Product):
    def __init__(self, product_id, name, price, discount):
        # MISSING: super().__init__(product_id, name, price)
        print(f"BrokenProduct.__init__ called for {name}")
        self.discount = discount

# Good child class with extra logic
class BookProduct(Product):
    def __init__(self, product_id, name, price, author, pages):
        # Can do some validation before calling parent
        if pages <= 0:
            raise ValueError("Pages must be greater than 0")
        
        # Then call parent
        super().__init__(product_id, name, price)
        print(f"BookProduct.__init__ called for {name}")
        self.author = author
        self.pages = pages
    
    def get_info(self):
        return f"{super().get_info()}, Author: {self.author}, Pages: {self.pages}"

# Using good classes
print("=== ELECTRONIC PRODUCT ===")
laptop = ElectronicProduct("E001", "Laptop", 999.99, "Dell", 2)
print(laptop.get_info())

print("\n=== BOOK PRODUCT ===")
book = BookProduct("B001", "Python Guide", 49.99, "John Smith", 350)
print(book.get_info())

# The broken class would cause an error:
# broken = BrokenProduct("B001", "Broken", 100, 10)
# print(broken.name)  # AttributeError! name was never set

print("\n✅ Always call super().__init__() in child classes!")
print("This ensures all parent attributes are properly initialized.")

Constructor overriding key points:

Call super().__init__() — always call the parent constructor
Initialize parent first — parent attributes must be set before child attributes
Can add validation — you can validate before calling parent
Can add extra logic — do additional setup after parent init
Never forget super() — forgetting causes AttributeError

Quick Check: What happens if you don't call super().__init__() in a child class? (Answer: Parent attributes won't be initialized, causing AttributeError)

Real-World Examples

Seeing Method Overriding in Action

# Real-world example: A Notification System

class Notification:
    """Parent class - basic notification"""
    
    def __init__(self, recipient, message):
        self.recipient = recipient
        self.message = message
        self.sent_at = None
    
    def send(self):
        """Send the notification - generic version"""
        self.sent_at = "now"
        return f"Sending notification to {self.recipient}: {self.message}"
    
    def get_status(self):
        status = "Sent" if self.sent_at else "Pending"
        return f"Status: {status} at {self.sent_at or 'not sent yet'}"
    
    def format_message(self):
        """Format the message - can be overridden"""
        return self.message

# Child class 1 - Email Notification
class EmailNotification(Notification):
    def __init__(self, recipient, message, subject, cc=None):
        # Override constructor - add email-specific attributes
        super().__init__(recipient, message)
        self.subject = subject
        self.cc = cc or []
        self.is_html = False
    
    def send(self):
        # Override send - add email-specific behavior
        super().send()  # Call parent's send to set sent_at
        cc_text = f", CC: {self.cc}" if self.cc else ""
        return f"📧 Sending email to {self.recipient}{cc_text}: {self.subject}"
    
    def format_message(self):
        # Override format - add HTML support
        if self.is_html:
            return f"{self.subject}
{self.message}"
        return f"SUBJECT: {self.subject}\n\n{self.message}"
    
    def add_attachment(self, file_name):
        """Email-specific method"""
        return f"Attached {file_name} to email"

# Child class 2 - SMS Notification
class SMSNotification(Notification):
    def __init__(self, recipient, message, sender_id):
        super().__init__(recipient, message)
        self.sender_id = sender_id
        self.message_limit = 160
        self.is_sent = False
    
    def send(self):
        # Override send - add SMS-specific behavior
        if len(self.message) > self.message_limit:
            return f"❌ SMS too long! {len(self.message)} chars (max {self.message_limit})"
        
        self.sent_at = "now"
        self.is_sent = True
        return f"📱 Sending SMS from {self.sender_id} to {self.recipient}"
    
    def format_message(self):
        # Override format - truncate for SMS
        if len(self.message) > self.message_limit:
            return self.message[:self.message_limit] + "..."
        return self.message
    
    def get_delivery_report(self):
        """SMS-specific method"""
        return f"Delivery report: {'Delivered' if self.is_sent else 'Pending'}"

# Child class 3 - Push Notification
class PushNotification(Notification):
    def __init__(self, recipient, message, app_name, priority="normal"):
        super().__init__(recipient, message)
        self.app_name = app_name
        self.priority = priority
        self.actions = []
    
    def send(self):
        # Override send - add push notification behavior
        super().send()  # Call parent's send
        actions_text = f" with actions: {self.actions}" if self.actions else ""
        return f"📲 Sending push notification from {self.app_name} to {self.recipient}{actions_text} (Priority: {self.priority})"
    
    def format_message(self):
        # Override format - add priority indicator
        priority_emoji = "🔴" if self.priority == "high" else "🟢"
        return f"{priority_emoji} {self.message}"
    
    def add_action(self, action_name):
        """Push notification-specific method"""
        self.actions.append(action_name)
        return f"Added action: {action_name}"

# Using the notification system
print("=" * 50)
print("NOTIFICATION SYSTEM WITH METHOD OVERRIDING")
print("=" * 50)

def send_notification(notification):
    """Function that works with any notification type"""
    print(notification.send())
    print(f"Formatted: {notification.format_message()}")
    print(notification.get_status())

print("\n=== EMAIL NOTIFICATION ===")
email = EmailNotification(
    "user@example.com", 
    "Hello! This is a test message.", 
    "Test Email", 
    cc=["boss@example.com"]
)
email.is_html = True
send_notification(email)
print(email.add_attachment("report.pdf"))

print("\n=== SMS NOTIFICATION ===")
sms = SMSNotification("+1234567890", "Your code is 123456", "MyApp")
send_notification(sms)
print(sms.get_delivery_report())

print("\n=== PUSH NOTIFICATION ===")
push = PushNotification("user123", "New message from Alice!", "MyApp", "high")
push.add_action("Reply")
push.add_action("Delete")
send_notification(push)

print("\n✅ Each notification type has its own behavior!")
print("The send_notification function works with ALL notification types.")

Real-world example key points:

Parent class — Notification defines common interface (send, format_message, get_status)
EmailNotification — adds subject, CC, HTML support, attachments
SMSNotification — adds character limit, sender_id, delivery reports
PushNotification — adds app_name, priority, actions
Polymorphism — send_notification() works with any notification type

Quick Check: What does the send_notification function demonstrate? (Answer: Polymorphism — it works with any class that inherits from Notification)

Best Practices for Method Overriding

Using Method Overriding Effectively

# Best practices for method overriding

# 1. Always call super().__init__() in child class constructors
class Base:
    def __init__(self, value):
        self.value = value

class Child(Base):
    def __init__(self, value, extra):
        super().__init__(value)  # ✅ Good
        self.extra = extra

# 2. Keep the method signature consistent
#  Good — same parameters
class Parent:
    def process(self, data):
        return f"Processing {data}"

class Child(Parent):
    def process(self, data):
        return f"Child processing {data}"

#  Bad — different parameters (can cause confusion)
class BadChild(Parent):
    def process(self, data, extra):  # ⚠️ Different signature
        return f"Processing {data} with {extra}"

# 3. Use super() to extend, not just replace
class Worker:
    def work(self):
        return "Working hard"

class Manager(Worker):
    def work(self):
        return f"{super().work()} and managing team"  # ✅ Extends

#  Bad — completely replaces without using super
class BadManager(Worker):
    def work(self):
        return "Managing team"  # ❌ Loses "Working hard"

# 4. Document why you're overriding
class Animal:
    def speak(self):
        """Return the animal's sound"""
        return "Generic sound"

class Dog(Animal):
    def speak(self):
        """Return the dog's sound — overridden to be specific"""
        return "Woof!"

# 5. Don't override methods that don't need it
#  Only override when you need different behavior

# 6. Test overridden methods
class Tester:
    def test(self):
        return "Testing..."

class TestSub(Tester):
    def test(self):
        result = super().test()
        return f"Extended: {result}"

# 7. Be careful with private methods
class Private:
    def __method(self):
        return "Private method"  # Name mangling makes this hard to override

class BadPrivate(Private):
    def __method(self):
        return "Trying to override"  # This won't work properly

Best practices summary:

Call super().__init__() — always in child class constructors
Keep signatures consistent — same parameters as parent
Extend, don't replace — use super() to add to parent behavior
Document your overrides — explain why you're overriding
Only override when needed — don't override unnecessarily
Test your overrides — make sure they work correctly
Avoid private method overrides — name mangling makes it tricky

Quick Check: Should you always keep the same method signature when overriding? (Answer: Yes, to maintain consistency and avoid confusion)

Try It Yourself

Experiment with method overriding in the editor below.

Loading Pyodide... 0%

Python Code Editor

# Python Method Overriding - Practice

print("=" * 40)
print("METHOD OVERRIDING PRACTICE")
print("=" * 40)

# 1. Create a parent class
print("\n1. CREATING A PARENT CLASS")
class Appliance:
    def __init__(self, brand, model):
        self.brand = brand
        self.model = model
        self.is_on = False
    
    def turn_on(self):
        self.is_on = True
        return f"{self.brand} {self.model} turned on"
    
    def turn_off(self):
        self.is_on = False
        return f"{self.brand} {self.model} turned off"
    
    def status(self):
        state = "ON" if self.is_on else "OFF"
        return f"{self.brand} {self.model}: {state}"
    
    def use(self):
        return f"Using {self.brand} {self.model}"

# 2. Create child classes with overridden methods
print("\n2. CREATING CHILD CLASSES")
class Microwave(Appliance):
    def __init__(self, brand, model, power_watts):
        super().__init__(brand, model)
        self.power_watts = power_watts
    
    def turn_on(self):
        super().turn_on()
        return f"{self.brand} microwave is heating at {self.power_watts}W"
    
    def use(self):
        return f"🍕 Heating food in {self.brand} microwave"

class CoffeeMaker(Appliance):
    def __init__(self, brand, model, brew_size):
        super().__init__(brand, model)
        self.brew_size = brew_size
        self.coffee_brewed = 0
    
    def turn_on(self):
        super().turn_on()
        return f"{self.brand} coffee maker is brewing {self.brew_size} cups"
    
    def use(self):
        self.coffee_brewed += 1
        return f"☕ Brewed coffee (total: {self.coffee_brewed})"

class Blender(Appliance):
    def __init__(self, brand, model, speed_settings):
        super().__init__(brand, model)
        self.speed_settings = speed_settings
    
    def turn_on(self):
        super().turn_on()
        return f"{self.brand} blender is blending at speed {self.speed_settings}"
    
    def use(self):
        return f"🥤 Blending smoothie in {self.brand} blender"

# 3. Use the classes
print("\n3. USING THE CLASSES")
microwave = Microwave("Samsung", "MG-101", 1000)
coffee_maker = CoffeeMaker("Breville", "Barista", 4)
blender = Blender("Vitamix", "Pro-750", 6)

print("MICROWAVE:")
print(microwave.turn_on())
print(microwave.use())
print(microwave.status())

print("\nCOFFEE MAKER:")
print(coffee_maker.turn_on())
print(coffee_maker.use())
print(coffee_maker.use())
print(coffee_maker.status())

print("\nBLENDER:")
print(blender.turn_on())
print(blender.use())
print(blender.status())

# 4. Check polymorphism
print("\n4. POLYMORPHISM IN ACTION")
appliances = [microwave, coffee_maker, blender]
for app in appliances:
    print(f"{app.brand}: {app.use()}")

print("\nMethod overriding practice complete!")

========================================
METHOD OVERRIDING PRACTICE
========================================

1. CREATING A PARENT CLASS

2. CREATING CHILD CLASSES

3. USING THE CLASSES
MICROWAVE:
Samsung microwave is heating at 1000W
🍕 Heating food in Samsung microwave
Samsung MG-101: ON

COFFEE MAKER:
Breville coffee maker is brewing 4 cups
☕ Brewed coffee (total: 1)
☕ Brewed coffee (total: 2)
Breville Barista: ON

BLENDER:
Vitamix blender is blending at speed 6
🥤 Blending smoothie in Vitamix blender
Vitamix Pro-750: ON

4. POLYMORPHISM IN ACTION
Samsung: 🍕 Heating food in Samsung microwave
Breville: ☕ Brewed coffee (total: 3)
Vitamix: 🥤 Blending smoothie in Vitamix blender

Method overriding practice complete!

🏆

You've Got It!

You now understand method overriding in Python. You know how to redefine parent methods in child classes, use super() to extend behavior, and override constructors properly.

Quick Quiz

Test what you've learned:

1. What is method overriding?

A) Adding a new method to a class B) Redefining a parent class method in a child class C) Deleting a method from a class D) Creating a class with no methods

2. Where does Python first look for a method when it's called on an object?

A) In the object's class (child class) B) In the parent class C) In the grandparent class D) In all classes at the same time

3. What does super() do in an overridden method?

A) Deletes the parent method B) Calls the parent class's version of the method C) Creates a new method D) Skips the parent method entirely

4. Why should you call super().__init__() in a child class?

A) It's optional, not necessary B) To initialize all parent attributes properly C) To delete parent attributes D) To create a new parent class

5. What is the main benefit of method overriding?

A) Making code longer B) Making code harder to understand C) Customizing behavior for specific child classes D) Removing all parent methods

Frequently Asked Questions

What's the difference between method overriding and method overloading?

Method overriding is when a child class redefines a method from its parent class (same name, same parameters). Method overloading is when you have multiple methods with the same name but different parameters. Python doesn't support method overloading traditionally — you can achieve similar results with default parameters or *args.

Do I have to call super() when overriding a method?

No, it's not required. You only call super() when you want to extend the parent's behavior. If you want to completely replace the parent's behavior, you don't need to call super(). But for constructors (__init__), it's strongly recommended to call super().__init__() to ensure all parent attributes are initialized.

Can I override a method in a grandchild class?

Yes! You can override methods at any level of the inheritance chain. A grandchild class can override a method that was defined in the parent or grandparent. The lookup chain always starts at the object's class and goes up, so the most specific (lowest in the chain) version wins.

What happens if I change the method signature when overriding?

Technically, you can change the signature (different parameters), but it's not recommended. It can cause confusion and break polymorphic behavior. If you need different parameters, it's better to use default parameters or *args/*kwargs to keep the interface consistent.

What's a common interview question about method overriding?

Common questions include: "What is method overriding and why is it used?" "Explain the difference between overriding and overloading." "What is the purpose of super()?" "How does Python determine which method to call when there's an override?" and "What happens if you forget to call super().__init__()?"

When should I use method overriding vs composition?

Use method overriding when you have an "is-a" relationship and you want to customize behavior while keeping the same interface. Use composition when you have a "has-a" relationship and you want to combine behaviors from multiple sources. Method overriding is for inheritance hierarchies; composition is for building complex objects from simpler ones.

Where to Go From Here

Now that you understand method overriding, check out these related topics:

Previous: Abstraction Next: Abstract Method →

Python

Python: Method Overriding

What is Method Overriding?

Why Do We Need Method Overriding?

Customizing Behavior for Each Child

How Method Overriding Works

Understanding the Mechanics

Using super() to Call Parent Methods

Accessing the Parent's Version

Overriding Constructors

Working with init in Child Classes

Real-World Examples

Seeing Method Overriding in Action

{self.subject}

Best Practices for Method Overriding

Using Method Overriding Effectively

Try It Yourself

You've Got It!

Quick Quiz

Frequently Asked Questions

What's the difference between method overriding and method overloading?

Do I have to call super() when overriding a method?

Can I override a method in a grandchild class?

What happens if I change the method signature when overriding?

What's a common interview question about method overriding?

When should I use method overriding vs composition?

Where to Go From Here

Overloading vs Overriding

Abstract Methods

Polymorphism

Python

Python: Method Overriding

What is Method Overriding?

Why Do We Need Method Overriding?

Customizing Behavior for Each Child

How Method Overriding Works

Understanding the Mechanics

Using super() to Call Parent Methods

Accessing the Parent's Version

Overriding Constructors

Working with __init__ in Child Classes

Real-World Examples

Seeing Method Overriding in Action

{self.subject}

Best Practices for Method Overriding

Using Method Overriding Effectively

Try It Yourself

You've Got It!

Quick Quiz

Frequently Asked Questions

What's the difference between method overriding and method overloading? ▼

Do I have to call super() when overriding a method? ▼

Can I override a method in a grandchild class? ▼

What happens if I change the method signature when overriding? ▼

What's a common interview question about method overriding? ▼

When should I use method overriding vs composition? ▼

Where to Go From Here

Overloading vs Overriding

Abstract Methods

Polymorphism

Working with init in Child Classes

What's the difference between method overriding and method overloading?

Do I have to call super() when overriding a method?

Can I override a method in a grandchild class?

What happens if I change the method signature when overriding?

What's a common interview question about method overriding?

When should I use method overriding vs composition?