How to calculate GPA using 'while' and calling another function for calculation

[casself01]

What I'm trying to do is to takes amount of subjets, then takes raw score accordingly, and return GPA and this function will call checkGradePoint during GPA calculation.

def checkGradePoint(raw):
if raw>100:
    score = "Error, raw score exceed max score" 
elif raw>80:
    score = "4"
elif raw>70:
    score = "3"
elif raw>60:
    score = "2"
elif raw>50:
    score = "1"
elif raw>0:
    score = "0"
else:
    score = "Error, raw score exceed min score"
 
 
 
def calGPA(n):
''' (int) -> float
>>> calGPA(5)
raw score: 55
raw score: 56
raw score: 59
raw score: 57
raw score: 61
1.2
>>> calGPA(3)
raw score: 74
raw score: 82
raw score: 51
2.67
>>>
'''
for i in range(n):
    y = input("score?")
while n: 
    totpoints = 0
    totunits = 0
    while n:  
        grade = checkGradePoint(raw)

This is how far I can go what should I do next?

[dwblas]

Assuming GPA = grades_total/number_of_grades, you would either store the grades entered in a list, and then sum and divide by the length (number) of grades, or keep a running total of the grades as they are entered and a counter that counts the number of grades entered and then divide accordingly.