Command pattern with Flask CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Flask class correctly.

Flask

from flask import [1]
app = [1](__name__)

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

Aflask

BFlask

CFlaskApp

DApp

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'flask' instead of 'Flask'

Using incorrect class names like 'FlaskApp' or 'App'

The Flask class is imported from the flask package using from flask import Flask.

2fill in blank

medium

Complete the code to define a Flask CLI command using the decorator.

Flask

@app.cli.[1]('hello')
def hello_command():
    print('Hello from CLI!')

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

Aroute

Bcli

Crun

Dcommand

Attempts:

3 left

💡 Hint

Common Mistakes

Using '@app.cli.cli' instead of '@app.cli.command'

Confusing CLI commands with routes

The @app.cli.command decorator defines a CLI command in Flask.

3fill in blank

hard

Fix the error in the command function to accept a parameter.

Flask

@app.cli.command('greet')
def greet_command(name):
    print(f'Hello, [1]!')

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

Aname

Bself

Cuser

Dapp

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different variable name inside the function

Forgetting to use the parameter in the print statement

The function parameter is named 'name', so use it inside the print statement.

4fill in blank

hard

Fill both blanks to create a CLI command that takes an argument and prints it.

Flask

@app.cli.command('[1]')
def echo_command(text):
    print(f'You said: [2]')

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

Aecho

Btext

Cmessage

Dinput

Attempts:

3 left

💡 Hint

Common Mistakes

Mismatching the command name and function name

Using a different variable inside the print statement

The command name is 'echo' and the variable used inside the print is 'text'.

5fill in blank

hard

Fill all three blanks to define a CLI command with an option and print the option value.

Flask

import click

@app.cli.command('repeat')
@click.option('--count', default=1, help='Number of repeats')
def repeat_command(count):
    for _ in range([1]):
        print('[2]' * [3])

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

Acount

BRepeat!

DHello

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong variable name in the loop

Printing the wrong string or not repeating it correctly

The loop runs 'count' times, printing 'Repeat!' repeated 'count' times each loop.