Python program to write data on csv file

import csv
fp=open("data1.csv","w",newline="")
obj=csv.writer(fp)
stu=['roll','name','city']
obj.writerow(stu)
for a in range(1,3):
    r=int(input("Enter the Roll "))
    n=input("Enter any name")
    c=input("Enter any City")
    stu=[r,n,c]
    obj.writerow(stu)
fp.close()