Secret key configuration in Flask - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the secret key for a Flask app.

Flask

app = Flask(__name__)
app.secret_key = '[1]'

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

ATrue

B12345

CNone

D'mysecretkey123'

Attempts:

3 left

💡 Hint

Common Mistakes

Using a number instead of a string

Leaving the secret key as None

Using a boolean value

The secret key must be a string used by Flask to secure sessions and cookies.

2fill in blank

medium

Complete the code to import the module needed to generate a random secret key.

Flask

import [1]
app.secret_key = os.urandom(24)

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

Aos

Bsys

Crandom

Dflask

Attempts:

3 left

💡 Hint

Common Mistakes

Importing random instead of os

Importing sys or flask which don't have urandom

The os module provides the urandom function to generate random bytes for the secret key.

3fill in blank

hard

Fix the error in setting the secret key to a byte string.

Flask

app.secret_key = [1]'supersecret'

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

Arb

B'b'

Cb

Dbr

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around b

Using 'rb' or 'br' which are invalid here

The prefix b before the string literal indicates a byte string in Python.

4fill in blank

hard

Fill both blanks to set the secret key from an environment variable.

Flask

import [1]
app.secret_key = os.[2]('SECRET_KEY')

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

Aos

Bgetenv

Cgetenvs

Denviron

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'getenvs' which does not exist

Using 'environ' directly without calling getenv

Use the os module and its getenv function to read environment variables.

5fill in blank

hard

Fill all three blanks to create a Flask app with a secret key from environment or fallback.

Flask

import [1]
app = Flask(__name__)
app.secret_key = os.[2]('SECRET_KEY', [3])

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

Aos

Bgetenv

C'defaultsecretkey'

D'SECRET_KEY'

Attempts:

3 left

💡 Hint

Common Mistakes

Using the environment variable name as the default value

Not providing a fallback value

This code imports os, creates the app, and sets the secret key from the environment variable SECRET_KEY or uses a default string if not set.