Question

You want to log sensor data every minute on your Raspberry Pi into a CSV file without losing old data. Which Python code snippet correctly achieves this?

Accepted Answer

import csv
with open('sensor_log.csv', 'a', newline='') as f:
    writer = csv.writer(f)
    writer.writerow(['12:01', '32'])

Answer

import csv
with open('sensor_log.csv', 'x', newline='') as f:
    writer = csv.writer(f)
    writer.writerow(['12:03', '33'])

Answer

import csv
with open('sensor_log.csv', 'r') as f:
    writer = csv.writer(f)
    writer.writerow(['12:02', '31'])

Answer

import csv
with open('sensor_log.csv', 'w', newline='') as f:
    writer = csv.writer(f)
    writer.writerow(['Time', 'Value'])
    writer.writerow(['12:00', '30'])

You want to log sensor data every minute on your Raspberry Pi into a CSV file without losing old data. Which Python code snippet correctly achieves this?

Step 1: Identify file mode to keep old data

Step 2: Check code correctness for logging new data

Final Answer:

Quick Check:

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