[Solved] Given the following Python code snippet on Raspberry Pi, what... Given the following Python code snippet on Raspberry Pi, what will be printed if the image contains a QR code with data 'Hello123'? | Raspberry Pi

Raspberry Pi - Camera Module

Given the following Python code snippet on Raspberry Pi, what will be printed if the image contains a QR code with data 'Hello123'?

from pyzbar.pyzbar import decode
import cv2

image = cv2.imread('qrcode.png')
decoded_objects = decode(image)
for obj in decoded_objects:
    print(obj.data.decode('utf-8'))

Ab'Hello123'

Bobj.data

CError: decode() expects a file path

DHello123

Step-by-Step Solution

Solution:

Step 1: Understand decode output
The decode function returns a list of objects with a data attribute as bytes.
Step 2: Decode bytes to string
The code calls obj.data.decode('utf-8') to convert bytes to a readable string, so it prints 'Hello123'.
Final Answer:
Hello123 -> Option D
Quick Check:
Decoded bytes to string = Hello123 [OK]

Quick Trick: Decode bytes with .decode('utf-8') to get readable text [OK]

Common Mistakes:

MISTAKES

Printing raw bytes without decoding
Assuming decode() takes file path instead of image
Confusing obj.data with string directly

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More Raspberry Pi Quizzes

Given the following Python code snippet on Raspberry Pi, what will be printed if the image contains a QR code with data 'Hello123'?

Step 1: Understand decode output

Step 2: Decode bytes to string

Final Answer:

Quick Check:

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