Python Inheritance and Polymorphism Quiz

How can you define a variable visible to all instances?

• self.variable

• _variable

• ClassName.variable

• var = 0 in init

Which function returns a readable string of an object?

• describe

• string

• str

• text

How can child classes access superclass protected members?

• Through imports

• Using super()

• Via private access

• With decorators

Which function allows invocation of a superclass's method?

• parent.method()

• base()

• super()

• root.method()

If a class inherits from more than one class, it's called:

• Interface merging

• Multilevel hierarchy

• Multiple inheritance

• Deep linking

What does MRO help determine?

• Object creation speed

• Method call sequence

• Memory reference optimization

• Recursive class calls

What issue arises from complex multiple inheritance?

• Shadowing

• Method overuse

• Diamond problem

• Recursive constructors

Which method is used first when instantiating subclasses?

• parent's call

• init of child

• setup

• build()

Is it possible to restrict multiple inheritance in Python?

• No, it's always allowed

• Only via metaclasses

• Yes, with private inheritance

• Yes, using single base class policy

Changing behavior of a method in a child class is called:

• Hiding

• Overriding

• Inverting

• Swapping