Harder problem......

Question

How to reverse a row in CSV file?

Answer 1

Sourya Banerjee , SAN ,

we do not necessarily need the csv module here:

import csv
with open('/usercode/files/books.txt', 'r') as textfile:
for row in reversed(list(csv.reader(textfile))):
#', '.join(row) # <<<<< this line of code has no effect as nothing is assigned
print(row)

we can also do it like this:

lst = []
for line in open('/usercode/files/books.txt', 'r'):
lst.insert(0, line.strip())
[print(item) for item in lst]

Answer 2

import csv
with open('/usercode/files/books.txt', 'r') as textfile:
for row in reversed(list(csv.reader(textfile))):
', '.join(row)
print(row)

Answer 3

reverse a single row........SAN