Flask-SocketIO setup - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the Flask class from the flask package.

Flask

from flask import [1]

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

ASocketIO

BFlask

Crender_template

Drequest

Attempts:

3 left

💡 Hint

Common Mistakes

Importing SocketIO instead of Flask

Using lowercase flask instead of Flask

Importing unrelated functions

The Flask class is imported from the flask package to create the app instance.

2fill in blank

medium

Complete the code to create a Flask app instance.

Flask

app = [1](__name__)

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

AFlask

Brender_template

CSocketIO

Drequest

Attempts:

3 left

💡 Hint

Common Mistakes

Using SocketIO instead of Flask to create app

Forgetting to pass __name__

Calling a function that is not a class

The Flask app instance is created by calling Flask with the current module name.

3fill in blank

hard

Fix the error in importing SocketIO from the flask_socketio package.

Flask

from flask_socketio import [1]

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

AFlask

Brequest

Crender_template

DSocketIO

Attempts:

3 left

💡 Hint

Common Mistakes

Importing Flask from flask_socketio

Importing unrelated functions

Misspelling SocketIO

SocketIO is imported from flask_socketio to enable real-time communication.

4fill in blank

hard

Fill both blanks to initialize SocketIO with the Flask app and enable CORS.

Flask

socketio = [1](app, cors_allowed_origins=[2])

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

ASocketIO

BFlask

C'*'

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Using Flask instead of SocketIO to initialize

Setting cors_allowed_origins to None

Forgetting to pass the app instance

SocketIO is initialized with the Flask app and CORS is allowed from all origins using '*'.

5fill in blank

hard

Fill all three blanks to run the SocketIO server with debug mode enabled on port 5000.

Flask

if __name__ == '__main__':
    socketio.[1](debug=[2], port=[3])

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

Arun

BTrue

C5000

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using start instead of run

Setting debug to False or a string

Using wrong port number

The SocketIO server is started by calling run with debug=True and port=5000.