Which Python construct guarantees that GPIO.cleanup() executes regardless of exceptions during GPIO operations?

easy📝 Conceptual Q2 of 15

Raspberry Pi - GPIO Basics with Python

Which Python construct guarantees that GPIO.cleanup() executes regardless of exceptions during GPIO operations?

AUsing a <code>while</code> loop to repeatedly call cleanup

BPlacing cleanup code inside an <code>if</code> statement

CCalling cleanup only after the main loop finishes

DUsing a <code>finally</code> block after a <code>try</code> block

Step-by-Step Solution

Solution:

Step 1: Understand exception handling
The finally block runs after try, even if exceptions occur.
Step 2: Ensuring cleanup
Placing GPIO.cleanup() inside finally ensures it always executes.
Final Answer:
Using a finally block after a try block -> Option D
Quick Check:
finally always runs [OK]

Quick Trick: Use finally block to guarantee cleanup [OK]

Common Mistakes:

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