Python - Object-Oriented Programming - Inheritance and Method Resolution Order Part 1

The video tutorial explains class inheritance in Python, focusing on the method resolution order (MRO) when dealing with multiple parent classes. It demonstrates how to create classes and objects, and how Python handles the init method when it is not explicitly defined in a class. The tutorial also covers the concept of default inheritance from the object class and explores multiple inheritance scenarios, illustrating how Python determines which parent class method to execute.

What is the main challenge when a child class inherits methods with the same name from multiple parent classes?

• The child class will throw an error.

• The child class must choose which method to execute.

• The child class will execute both methods simultaneously.

• The child class cannot access any methods.

What happens if a class in Python does not explicitly inherit from another class?

• It will not have any methods.

• It will automatically inherit from the 'object' class.

• It will throw an error when instantiated.

• It will inherit from the last defined class.

What is the role of the 'object' class in Python inheritance?

• It provides a default init method for all classes.

• It prevents classes from being instantiated.

• It is used only for error handling.

• It is a placeholder with no functionality.

In Python, how does the Method Resolution Order (MRO) determine which parent class's method to execute?

• By executing methods based on the number of methods in each class.

• By executing methods from the leftmost parent class first.

• By executing methods from the rightmost parent class first.

• By executing methods in alphabetical order of class names.

How does changing the order of parent classes in a child class affect method execution?

• It merges methods from both parents.

• It causes a syntax error.

• It does not affect method execution.

• It changes the order in which methods are executed.

If a parent class in a multiple inheritance scenario lacks an init method, what does Python do?

• It skips the parent class and moves to the next one.

• It throws an error.

• It creates a default init method.

• It stops the execution.

What search strategy does Python use in MRO to find the appropriate method to execute?

• Breadth-first search

• Random search

• Depth-first search

• Binary search