Module 8: Classes

Question 1

A class has ______ which are variables of the class and _______ which are functions to be called on instances of the class.

Answer 1

attributes
methods

Question 2

The annotation of an attribute says _______ ________ ______

Answer 2

name
colon
type

Question 3

Documentation for a class includes ________ and __________.

Answer 3

docstring
attribute annotations

Question 4

______ methods start and end with two underscores, for the user to be able to use without defining them.

Answer 4

magic

Question 5

__________ is used to give a more meaningful initialization of an object.

Answer 5

__init__

Question 6

_________ and ________ are used to give a description of a printed object.

Answer 6

__repr__
__str__

Question 7

_________ is used to redefine the comparison operator.

Answer 7

__eq__

Question 8

a ________ is a function that is part of a class and will be called on an object.

Answer 8

method

Question 9

All class methods must begin with _______ referential parameter which allows you to refer to the object that called this method.

Answer 9

self

Question 10

Self is a value of _______ type as class being defined, so ______ the type annotation.

Answer 10

same
omit

Question 11

While defining a class the class is not yet defined so _________ use the __________ inside the class definition. Instead, when referring to a value of the same class, use a ________ containing the name of the class.

Answer 11

cannot
name of the class
string

Question 12

Instances of a class are _________.

Answer 12

objects

Question 13

__init__ returns _________. ______ the annotation.

Answer 13

None
omit

Question 14

Classes are ______ and can be _________ like dictionaries.

Answer 14

mutable
aliased

Question 15

When using a class object, access the attributes and methods of the class by calling the __________ followed by _________ or __________.

Answer 15

object name
.attribute
.method(parameters)

Question 16

Use ____________ to display whatever information of interest from a class. Typically used to display all attribute values of the class and tell the user which value is which.

Answer 16

__repr__

Question 17

To create a brand new object and copy all the attributes of another object use the format: _______________________

Answer 17

india_copy = Country(india.continent, india.leader, india.population)

Question 18

To alias an object use the format: ________________.

Answer 18

india_alias = india

Question 19

The default for how == is defined is _________. Often this is changed by overriding the __________ magic method. Now need to use ________ to determine if 2 objects are aliases of each other.

Answer 19

aliasing
__eq__
is

Question 20

With overriding __________ method the equality can be utilized for two values of _______ type. Use method ______________ to check whether the type of object_name is equal to class_name.

Answer 20

__eq__
any
isinstance(object_name, class_name)

Question 21

An object is ________ the same as its representation.

Answer 21

not