Python For Beginners Tutorial 14 Homework

This is my code for both parts of the homework. Data input and storage, and then data retrieval and manipulation.
Part A:
import pickle
students = 0
stName = ''
avgGrade = 0
names = []
grades = []
inputString = 'Please enter the name for student number '
inputColon = ': '
students = int(input('\n\nHow Many Students Do You Have? '))
j = 1

for i in range(students):
stName = input(inputString + str(j) + inputColon)
names.append(stName)
avgGrade = float(input('Please enter ' + stName +'\'s' + ' average grade: ' ))
grades.append(avgGrade)
j = j+1

with open('c:\projectFiles\lesson14.pkl','wb') as f:
pickle.dump(names,f)
pickle.dump(grades,f)

print('Data Stored To File! Exiting Now')

Part B
import pickle

avgGrade = 0
names = []
grades = []

with open('c:\projectFiles\lesson14.pkl','rb') as f:
names = pickle.load(f)
grades = pickle.load(f)

keepGoing = True
numStudents = len(names)
j = 0
print('There are ', numStudents, 'in this file.')
print('Their names are:')
for i in range(numStudents):
print(names[j])
j += 1

while(keepGoing):
stuName = input('What Student Are You Interested In? ')
for i in range(numStudents):
if stuName == names[i]:
print('Student ',stuName, '\'s average grade is ', str(grades[i]))
goAgain = input('Would You Like Another Student? Y for YES: ')
if ((goAgain == 'Y') or (goAgain == 'y')):
keepGoing = True
else:
keepGoing = False



print(names)
print(grades)