[Solved] Given this factory function, what will print(app.config['DEBUG']) output?def create_app(): app = Flask(__name__) app.config.from_mapping(DEBUG=True) return app app = create_app() print(app.... | Flask

Flask - Ecosystem and Patterns

Given this factory function, what will print(app.config['DEBUG']) output?

def create_app():
    app = Flask(__name__)
    app.config.from_mapping(DEBUG=True)
    return app

app = create_app()
print(app.config['DEBUG'])

ANone

BTrue

CFalse

DKeyError

Step-by-Step Solution

Solution:

Step 1: Analyze config setting
The factory sets DEBUG=True using app.config.from_mapping().
Step 2: Check printed value
After creating the app, printing app.config['DEBUG'] outputs the value set, which is True.
Final Answer:
True -> Option B
Quick Check:
Config DEBUG set True = True [OK]

Quick Trick: Config values set in factory are accessible after app creation [OK]

Common Mistakes:

MISTAKES

Master "Ecosystem and Patterns" in Flask

9 interactive learning modes - each teaches the same concept differently

More Flask Quizzes

Given this factory function, what will print(app.config['DEBUG']) output?