Python subjective question for competitive exam (8)

Q1.Program to store rollno and name of 6 student in text file

f=open("r.txt","w")
for i in range(6):
    roll=input("enter roll")
    name=input("enter name")               
    f.write(roll)
    f.write(name)                         
f.close()    


>>> 
==================== RESTART: C:/Users/Dell/Desktop/ss.py ====================
enter roll1
enter nameram
enter roll2
enter namesham
enter roll3
enter namegeeta
enter roll4
enter nameseema
enter roll5
enter namefina
enter roll6
enter namerama

Q2. Program to store rollno and name of 6 student in csv file .

import csv
f=open("r.csv","w")
for i in range(6):
    roll=input("enter roll")
    name=input("enter name")               
    f.write(roll)
    f.write(name)                         
f.close()    

>>> 
==================== RESTART: C:/Users/Dell/Desktop/ss.py ====================
enter roll1
enter namerama
enter roll2
enter namedeepa
enter roll3
enter namegeeta
enter roll4
enter namereema
enter roll5
enter namefeena
enter roll6
enter namegeeta

Q3.Program to store rollno and name of 6 student in binary file

import pickle
f=open("r.dat","wb")
for i in range(6):
    roll=int(input("enter rollno"))
    name=input("enter name")
    s={"roll":roll,"name":name}
    pickle.dump(s,f)                         
f.close()    

enter rollno1
enter nameram
enter rollno2
enter namesham
enter rollno3
enter namegeeta
enter rollno4
enter nametimm
enter rollno5
enter namemamta
enter rollno6
enter nameseema

Q4.Program to print even number in text file

f=open("rt.txt",'w')
for i in range(2,10):
    if(i%2==0):
        f.write(str(i))
f.close()

file output

2468

Q5 Program to print odd number in text file

f=open("rt.txt",'w')
for i in range(2,10):
    if(i%2==0):
        None
    else:
        f.write(str(i))
f.close()

file Output

3579