Chapter 9 review

What is my dog in the given code snippet?

my_dog = Dog('blacky', 2)

• A method that initializes the dog object.

• A variable representing the name of the dog.

• An instance of the Dog class.

• An attribute storing the dog's age.

How do you access classes when importing an entire module?

• Use the syntax module_name.class_name

• Use the syntax class_name.module_name

• You cannot import and entire module.

• Use the syntax module_name -> class_name

What is a method in Python?

• A built-in Python keyword used to define classes.

• A data type that stores a collection of values.

• A function that's part of a class.

• A statement used to control the flow of execution in a program.

What happens if you only use one underscore before and after the method init()?

• The method won't be called automatically when you use your class.

• Nothing, everything will work OK.

What happens when you create multiple instances of a class in Python with the same arguments?

• Only the last instance created will retain the attribute values.

• Each instance will have its own unique memory address and separate attribute values.

• The program will throw an error indicating duplicate instances.

• Each instance will have the same memory address but separate attribute values.

What attributes are included in the Dog class?

class Dog:

def init(self, name, age):

self.name = name

self.age = age

def sit(self):

print(f'{self.name} is now sitting.')

def roll_over(self):

print(f'{self.name} rolled over!')

• name and age

• only name

• only age

• the class dog has no attributes

How do you access the attributes of an instance in Python?

• By using the getattr() function (getattr(instance, 'attribute'))

• By using square bracket notation (instance['attribute'])

• By calling a method with the attribute name as an argument (instance.get_attribute('attribute'))

• By using dot notation (instance.attribute)

How can you import all classes from a module?

• from module_name import [:]

• from module_name import ()

• from module_name import module_name.importAll()

• from module_name import *

What happens when one class inherits from another class?

• The child class can only access the public attributes and methods of the parent class.

• The child class gains access to all attributes and methods of the parent class.

• The parent class is deleted and replaced by the child class.

• The parent class becomes an instance of the child class.

What is the naming convention for classes and instances in Python?

• Classes and instances both use lowercase letters with underscores.

• Classes are typically named using CamelCase, while instances use lowercase letters with underscores.

• There isn't a convention.

• Classes and instances both use UPPERCASE letters with underscores.