Object initialization flow in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the constructor method for a 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'

Astart

Binit

Cconstructor

D__init__

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'init' without underscores.

Using 'constructor' which is not a Python method name.

The constructor method in Python classes is named __init__. It runs when an object is created.

2fill in blank

medium

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

Python

my_car = Car([1], 'Model S')

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A'Tesla'

BTesla

CCar

D"Model S"

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around string arguments.

Passing the class name instead of a string.

When creating an object, string arguments must be in quotes. Here, 'Tesla' is the make.

3fill in blank

hard

Fix the error in the method to correctly initialize the attribute.

Python

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

p = Person('Alice')
print(p.name)

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AName

Bnam

Cname

Dnames

Attempts:

3 left

💡 Hint

Common Mistakes

Using capitalized or misspelled attribute names.

Mismatch between attribute and print statement.

The attribute name must exactly match the one used when accessing it. Here, self.name matches p.name.

4fill in blank

hard

Fill both blanks to create a class with an attribute and a method that returns it.

Python

class Book:
    def __init__(self, title):
        self.[1] = title
    def get_[2](self):
        return self.title

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

Atitle

Bname

Attempts:

3 left

💡 Hint

Common Mistakes

Using different names for attribute and method.

Mismatch between attribute and method names.

The attribute is named title, so the method should be get_title to match.

5fill in blank

hard

Fill all three blanks to initialize an object with two attributes and a method that returns a formatted string.

Python

class Student:
    def __init__(self, name, age):
        self.[1] = name
        self.[2] = age
    def info(self):
        return f"Name: {self.[3], Age: {self.age}"

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

Aname

Bage

Dstudent

Attempts:

3 left

💡 Hint

Common Mistakes

Using different names for attributes and in the method.

Forgetting to initialize both attributes.

The attributes name and age must be initialized and used consistently in the method.