I wrote the following code:

def write_students():

outfile = open("students.txt",'w')

student_name= input("Enter student name;enter quit to stop: ")

while student_name!= 'quit':

major = input("Enter major: ")

gpa = input("Enter gpa: ")

outfile.write(student_name + ' ')

outfile.write(major + ' ')

outfile.write(gpa + ' ')

student_name= input("Enter student name;enter quit to stop: ")

outfile.close()

def read_students(major):

infile = open("students.txt",'r')

line= infile.readlines()

maximum = 0

for line in infile:

l = line.strip().split()

if l[1] == major:

maximum = max(maximum,float(l[2]))

infile.close

def main():

write_students()

major = input("Enter major: ")

max_gpa = read_students(major)

print("The highest GPA for" , major , "majors is " ,max_gpa)

main()

I've got the output as follow:

Enter student name;enter quit to stop: john

Enter major: insy

Enter gpa: 3.5

Enter student name;enter quit to stop: willis

Enter major: mana

Enter gpa: 3.5

Enter student name;enter quit to stop: smith

Enter major: insy

Enter gpa: 3.8

Enter student name;enter quit to stop: quit

Enter major: isny

The highest GPA for isny majors isNone

The problem's output as follow:

function write_students that asks the user for student records and writes them to file students.txt.A record of a student includes name, major and GPA.The user can enter as many records as they want until they type in quit.

function read_students that accepts a major.The function returns the highest GPA for that major.

a program that calls write_students and read_students and prints the major and highest GPA.The programwill ask the user for the major for which to search.Assume all names and majors will be lower case.

Sample input/output might look as follows:

Enter student name; enter quit to stop: jones

Enter major: insy

Enter gpa: 2.0

Enter student name; enter quit to stop: smith

Enter major: insy

Enter gpa: 3.25

Enter student name; enter quit to stop: willis

Enter major: mana

Enter gpa: 3.25

Enter student name; enter quit to stop: quit

Enter major: insy

The highest GPA for insy majors is 3.25

I need help regarding the highest GPA . Thank you in advance