Question

Write a Python program to modify an existing file.

Answer 1

Coding:

import csv ,
row = [‘3: ‘Meena’Bangalore’]
with opent’student.csv; ‘r’) as readFile:
reader = csv.reader(readFile)
lines = list(reader) # list()- to store each
row of data as a list
lines [3] = row
with open (student.csv, ‘w’) as writeFile:
# returns the writer object which converts the user data with delimiter
writer = csv.writer(writeFile)
#writerows()method writes multiple rows to a csv file
writer, writerows(lines)
readFile.close()
writeFile. close()

Original File:

Roll No	Name	City
1	Harshini,	Chennai
2	Adhith,	Mumbai
3	Dhuruv	Bangalore
4	egiste,	Tirchy
5	Venkat	Madurai

Modified File after the coding:

Roll No	Name	City
1	Harshini,	Chennai
2	Adhith,	Mumbai
3	Meena	Bangalore
4	egiste,	Tirchy
5	Venkat	Madurai