CS 294 - Grade Calculator Script

calculate_grade.py

#!/usr/bin/env python

import argparse

def get_letter_grade(points):
    """Return letter grade (A-F) based on 100 point scale"""
    if points >= 90:
        return 'A'
    elif points >= 80:
        return 'B'
    elif points >= 70:
        return 'C'
    elif points >= 60:
        return 'D'
    else:
        return 'F'

# Parse command line arguments
parser = argparse.ArgumentParser()
parser.add_argument('-ap', '--assignment_points', type=int, required=True)
parser.add_argument('-bp', '--blog_points', type=int, required=True)
parser.add_argument('-pp', '--project_points', type=int, required=True)
args = parser.parse_args()

# Add up points and convert to letter grade; print result
total_points = args.assignment_points + args.blog_points + args.project_points
grade = get_letter_grade(total_points)
print("Your grade is: " + grade)