[Solved] Given this Python code on Raspberry Pi, what will be the content of 'log.txt' after running it twice? with open('log.txt', 'a') as f: f.write('Temperature: 22\n') | Raspberry Pi

Raspberry Pi - Data Logging and Databases

Given this Python code on Raspberry Pi, what will be the content of 'log.txt' after running it twice?

with open('log.txt', 'a') as f:
    f.write('Temperature: 22\n')

ATemperature: 22

BTemperature: 22\n

CTemperature: 22\nTemperature: 22\n

DError: file not found

Step-by-Step Solution

Solution:

Step 1: Understand file mode 'a' in Python
Mode 'a' appends text to the file without deleting existing content.
Step 2: Analyze running code twice
Each run adds 'Temperature: 22\n' once, so two runs add it twice.
Final Answer:
Temperature: 22\nTemperature: 22\n -> Option C
Quick Check:
Append mode adds lines each run [OK]

Quick Trick: Mode 'a' appends, so repeated runs add lines [OK]

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Given this Python code on Raspberry Pi, what will be the content of 'log.txt' after running it twice?