Creating objects in Python - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create an object of class Car named my_car.

Python

class Car:
    def __init__(self, brand):
        self.brand = brand

my_car = [1]

Drag options to blanks, or click blank then click option'

ACar('Toyota')

BCar = 'Toyota'

CCar.brand('Toyota')

DCar('Toyota')()

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to call a method on the class instead of creating an object.

Assigning a string directly to the class name.

Adding extra parentheses after object creation.

To create an object, call the class name with parentheses and pass required arguments. Here, Car('Toyota') creates an object with brand 'Toyota'.

2fill in blank

medium

Complete the code to access the color attribute of the car object.

Python

class Car:
    def __init__(self, color):
        self.color = color

car = Car('red')
print(car.[1])

Drag options to blanks, or click blank then click option'

Abrand

Bcolor

CColor

Dpaint

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different attribute name than defined.

Capitalizing the attribute name incorrectly.

Trying to access an attribute that does not exist.

To access an attribute, use the object name followed by a dot and the attribute name exactly as defined. Here, car.color gives 'red'.

3fill in blank

hard

Fix the error in the code to correctly create an object of class Person.

Python

class Person:
    def __init__(self, name):
        self.name = name

person = Person[1]

Drag options to blanks, or click blank then click option'

A['Alice']

B('Alice',)

C('Alice')

D('Alice')()

Attempts:

3 left

💡 Hint

Common Mistakes

Using square brackets instead of parentheses.

Adding extra parentheses after the argument list.

Passing a tuple with a comma when not needed.

To create an object, call the class with parentheses and pass arguments. Person('Alice') is correct. Using square brackets or extra parentheses causes errors.

4fill in blank

hard

Fill both blanks to create a dictionary with keys as names and values as ages from the people list.

Python

people = [('Alice', 30), ('Bob', 25), ('Cara', 27)]
ages = {person[1]: person[2] for person in people}

Drag options to blanks, or click blank then click option'

A[0]

B[1]

C:

D=>

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=>' instead of ':' in dictionary comprehension.

Mixing up indices for name and age.

Using parentheses instead of square brackets for tuple access.

To create a dictionary comprehension, use {key: value for item in list}. Here, person[0] is the name (key) and person[1] is the age (value), separated by a colon. The full comprehension is {person[0]: person[1] for person in people}.

5fill in blank

hard

Fill all three blanks to create a list of Person objects from the names list.

Python

class Person:
    def __init__(self, name):
        self.name = name

names = ['Anna', 'Ben', 'Cara']
people = [[1]([2]) for [3] in names]

Drag options to blanks, or click blank then click option'

APerson

Bname

Cn

DPerson()

Attempts:

3 left

💡 Hint

Common Mistakes

Calling Person() without arguments.

Using a different variable name inside the call than in the loop.

Adding parentheses after the class name in the options.

To create objects in a list comprehension, call the class with the loop variable. Here, Person(n) for n in names creates objects for each name.