Python - Standard Library Usage
What will be the output of this code if the environment variable 'HOME' is set to '/home/user'?
import os
print(os.getenv('HOME'))
What will be the output of this code if the environment variable 'HOME' is set to '/home/user'? import os print(os.getenv('HOME'))
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand os.getenv behavior
os.getenv('HOME') returns the value of 'HOME' environment variable if set, else null.Step 2: Given 'HOME' is '/home/user'
The code prints the string '/home/user'.Final Answer:
/home/user -> Option AQuick Check:
os.getenv returns env var value = /home/user [OK]
Quick Trick: os.getenv returns env var value or null if missing [OK]
Common Mistakes:
- Expecting variable name instead of value
- Assuming it prints null when variable exists
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