__init__ method behavior in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the constructor method in a Python class.

Python

class Car:
    def [1](self, make, model):
        self.make = make
        self.model = model

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

Aconstructor

Binit

C__init__

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'init' without underscores.

Using 'constructor' or other names instead of '__init__'.

The __init__ method is the special constructor method in Python classes. It runs when you create a new object.

2fill in blank

medium

Complete the code to create an instance of the class Car with make 'Toyota' and model 'Corolla'.

Python

my_car = Car([1], 'Corolla')

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

A'Toyota'

B'Honda'

C'Ford'

D'BMW'

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the wrong string for the make.

Forgetting to use quotes around the string.

To create an object with make 'Toyota', pass the string 'Toyota' as the first argument.

3fill in blank

hard

Fix the error in the constructor method name to make the class work correctly.

Python

class Person:
    def [1](self, name):
        self.name = name

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

Ainitialize

B__init__

C_init_

Dinit__

Attempts:

3 left

💡 Hint

Common Mistakes

Using single underscores or misspelling the method name.

Using other names like 'initialize'.

The constructor method must be named __init__ with double underscores before and after.

4fill in blank

hard

Fill both blanks to complete the constructor that sets the attributes 'name' and 'age'.

Python

class Student:
    def __init__(self, name, age):
        self.[1] = name
        self.[2] = age

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

Aname

Bage

Cgrade

Dscore

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing attribute names or using unrelated names like 'grade'.

Forgetting to use 'self.' before attribute names.

The attributes should match the parameter names to store the values correctly.

5fill in blank

hard

Fill all three blanks to complete the constructor that sets 'title', 'author', and 'pages' attributes.

Python

class Book:
    def __init__(self, title, author, pages):
        self.[1] = title
        self.[2] = author
        self.[3] = pages

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

Atitle

Bauthor

Cpages

Dpublisher

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect attribute names like 'publisher'.

Forgetting 'self.' before attribute names.

The constructor assigns each parameter to an attribute with the same name.