grading.py

#!/usr/bin/env python

total = 10

def info(text):
    print('\033[32m{}\33[0m'.format(text))  # green

def cal(points):
    eq = points.replace(' ', ' + ')
    eq = f'{total} - ({eq})'
    total1 = eval(eq)

    points = points.split(' ')
    sub = 0
    for p in points:
        sub += float(p)
    total2 = total - sub
    print('Total1: {} = {}'.format(total1, eq))
    print('Total2: {}'.format(total2))


while(True):
    info(f'Grading: Please input points to be subtracted from {total}, seperate them with space')
    points = input()
    if len(points) == 0:
        print("[Process completed]")
        break
    if points[-1] == ' ':
        points = points[:-1]
    cal(points)
    print()