[Solved] What will be the output of this code?import csv with open('test.csv', 'w', newline='') as f: writer = csv.writer(f) writer.writerow(['Name', 'Age']) writer.writerow(['Alice', 30]) with open('test.... | Python

Python - Structured Data Files

What will be the output of this code?

import csv
with open('test.csv', 'w', newline='') as f:
    writer = csv.writer(f)
    writer.writerow(['Name', 'Age'])
    writer.writerow(['Alice', 30])

with open('test.csv', 'r') as f:
    reader = csv.reader(f)
    for row in reader:
        print(row)

AError due to missing encoding

B['Name', 'Age']\n['Alice', 30]

CName,Age\nAlice,30

D['Name', 'Age']\n['Alice', '30']

Step-by-Step Solution

Solution:

Step 1: Writing rows with csv.writer
The code writes two rows: header with strings and a data row with a string and an integer.
Step 2: Reading rows with csv.reader
csv.reader reads all fields as strings, so 30 becomes '30' when read.
Final Answer:
['Name', 'Age']\n['Alice', '30'] -> Option D
Quick Check:
csv.reader reads all fields as strings [OK]

Quick Trick: csv.reader returns all fields as strings [OK]

Common Mistakes:

Expecting integers when reading CSV
Confusing printed list with CSV text
Assuming encoding error without cause

Master "Structured Data Files" in Python

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

More Python Quizzes

What will be the output of this code?

Step 1: Writing rows with csv.writer

Step 2: Reading rows with csv.reader

Final Answer:

Quick Check:

Want More Practice?