Why class-based views exist in Django - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the base class for class-based views in Django.

Django

from django.views import [1]

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

AView

BModel

CTemplate

DForm

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Model' which is for database models, not views.

Using 'Template' or 'Form' which are unrelated to base view classes.

The base class for class-based views in Django is View. It provides the foundation to build views as classes.

2fill in blank

medium

Complete the code to define a simple class-based view that returns a HTTP response.

Django

from django.http import HttpResponse
from django.views import View

class HelloView(View):
    def [1](self, request):
        return HttpResponse('Hello!')

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

Arender

Bpost

Cinit

Dget

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'post' when the view is meant to handle GET requests.

Using 'init' which is a constructor, not a request handler.

The get method handles HTTP GET requests in class-based views.

3fill in blank

hard

Fix the error in the class-based view method signature to correctly accept the request and return a response.

Django

class MyView(View):
    def get([1]):
        return HttpResponse('Hi')

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

Arequest

Brequest, self

Cself, request

Dself

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting self parameter.

Placing request before self.

Instance methods in Python classes must have self as the first parameter, followed by request for Django views.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps words to their lengths only if length is greater than 3.

Django

lengths = {word: [1] for word in words if len(word) [2] 3}

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

Alen(word)

B<

C>

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' in the condition.

Mapping word to word itself instead of its length.

The dictionary maps each word to its length using len(word). The condition filters words with length greater than 3 using >.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase keys to values only if value is positive.

Django

result = [1]: [2] for k, v in data.items() if v [3] 0}

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

Ak.upper()

Bv

C>

Dk

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'k' instead of 'k.upper()' for keys.

Using '<' instead of '>' in the condition.

Swapping keys and values in the comprehension.

The keys are converted to uppercase with k.upper(). The values are kept as v. The condition filters values greater than zero using >.