gpa.py

#

# gpa.py
# author Vaibhav Kapoor
# CopyLeft 2012

def main():
    f = open('gpa.txt', 'r')
    grades = ['F', 'E', 'D', 'D+', 'C', 'C+', 'B', 'B+', 'A', 'A+']
    creditTotal = 0
    points = 0
    for line in f:
        split = line.split()
        if(split[-1] in grades):
            credit = float(split[4])
            grade = float(grades.index(split[-1]))
            points += grade*credit
            creditTotal += credit
    print points / creditTotal
    f.close()

main()