Find the bug in this Flask app using Flask-Compress: ```python from flask import Flask from flask_compress import Compress app = Flask(name) compress = Compress(app) @app.route('/') def index(): return {'message': 'Hello'} ``` What issue might occur?

medium📝 Debug Q7 of 15

Flask - Middleware and Extensions

Find the bug in this Flask app using Flask-Compress: ```python from flask import Flask from flask_compress import Compress app = Flask(__name__) compress = Compress(app) @app.route('/') def index(): return {'message': 'Hello'} ``` What issue might occur?

ACompress must be initialized after route definitions

BFlask-Compress cannot compress JSON responses

CNo bug, code works fine

DReturning a dict without jsonify causes a TypeError

Step-by-Step Solution

Solution:

Step 1: Check Flask response type requirements
Flask requires JSON responses to be returned via jsonify or Response objects, not plain dicts.
Step 2: Identify error from returning dict directly
Returning a dict directly causes a TypeError in Flask.
Final Answer:
Returning a dict without jsonify causes a TypeError -> Option D
Quick Check:
Return type must be string or Response [OK]

Quick Trick: Use jsonify for JSON responses, not plain dicts [OK]

Common Mistakes:

MISTAKES

Assuming Flask auto-converts dicts
Thinking Flask-Compress affects response type
Ignoring Flask response format rules

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More Flask Quizzes

Find the bug in this Flask app using Flask-Compress: ```python from flask import Flask from flask_compress import Compress app = Flask(__name__) compress = Compress(app) @app.route('/') def index(): return {'message': 'Hello'} ``` What issue might occur?

Step 1: Check Flask response type requirements

Step 2: Identify error from returning dict directly

Final Answer:

Quick Check:

Want More Practice?

Find the bug in this Flask app using Flask-Compress: ```python from flask import Flask from flask_compress import Compress app = Flask(name) compress = Compress(app) @app.route('/') def index(): return {'message': 'Hello'} ``` What issue might occur?