What will be the output of this code if the environment variable USER is set to alice?

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Python - Standard Library Usage

What will be the output of this code if the environment variable USER is set to alice?

import os
name = os.getenv('USER', 'guest')
print(name)

Aalice

BUSER

Cnull

Dguest

Step-by-Step Solution

Solution:

Step 1: Understand os.getenv behavior
os.getenv('USER', 'guest') returns the value of USER if set, else 'guest'.
Step 2: Apply given environment variable value
Since USER is set to 'alice', the function returns 'alice'.
Final Answer:
alice -> Option A
Quick Check:
os.getenv returns env var value if set [OK]

Quick Trick: os.getenv returns env var value or default [OK]

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