[Solved] What will be the output of this Python script scheduled as a cron job on Raspberry Pi?import datetime with open('/home/pi/log.txt', 'a') as f: f.write(f"Run at {datetime.datetime.... | Raspberry Pi

Raspberry Pi - Automation and Scheduling

What will be the output of this Python script scheduled as a cron job on Raspberry Pi?

import datetime
with open('/home/pi/log.txt', 'a') as f:
    f.write(f"Run at {datetime.datetime.now()}\n")

Assuming the cron job runs every minute, what happens?

AThe file <code>log.txt</code> will have a new timestamp line added every minute

BThe file <code>log.txt</code> will be overwritten every minute with one timestamp

CThe script will cause an error and stop running

DNothing will happen because cron jobs cannot run Python scripts

Step-by-Step Solution

Solution:

Step 1: Understand the script behavior
The script opens log.txt in append mode ('a'), so it adds lines without deleting old ones.
Step 2: Consider the cron schedule
Since the cron runs every minute, the script adds a new timestamp line every minute.
Final Answer:
The file log.txt will have a new timestamp line added every minute -> Option A
Quick Check:
Append mode adds lines each run = A [OK]

Quick Trick: Append mode 'a' adds lines, doesn't overwrite [OK]

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