[Solved] What will this code print if 'numbers.txt' contains '1\n2\n3\n'? with open('numbers.txt') as f: total = 0 for line in f: total += int(line) print(total) | Python

Python - File Handling Fundamentals

What will this code print if 'numbers.txt' contains '1\n2\n3\n'?

with open('numbers.txt') as f:
    total = 0
    for line in f:
        total += int(line)
    print(total)

A6

B123

CError

D0

Step-by-Step Solution

Solution:

Step 1: Loop through each line in the file
Each line is '1\n', '2\n', '3\n'.
Step 2: Convert each line to int and sum
int('1\n') converts to 1, similarly 2 and 3, sum is 6.
Final Answer:
6 -> Option A
Quick Check:
Sum of lines as ints = 6 [OK]

Quick Trick: int() ignores trailing newline when converting [OK]

Common Mistakes:

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What will this code print if 'numbers.txt' contains '1\n2\n3\n'?