[Solved] Given this Flask snippet:import os app_secret = os.getenv('APP_SECRET', 'defaultsecret') print(app_secret)If the environment variable APP_SECRET is not set, what will be printed? | Flask

Flask - Deployment

Given this Flask snippet:

import os
app_secret = os.getenv('APP_SECRET', 'defaultsecret')
print(app_secret)

If the environment variable APP_SECRET is not set, what will be printed?

ANone

Bdefaultsecret

CAPP_SECRET

D'' (empty string)

Step-by-Step Solution

Solution:

Step 1: Understand os.getenv behavior with default
os.getenv returns the environment variable value if set; otherwise returns the default provided.
Step 2: Apply to given code
Since APP_SECRET is not set, os.getenv returns 'defaultsecret', which is printed.
Final Answer:
defaultsecret -> Option B
Quick Check:
Unset env var returns default value [OK]

Quick Trick: Unset env vars return default if provided in getenv [OK]

Common Mistakes:

MISTAKES

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