Calculates unweighted and weighted GPA for Wayland High School

waygrade_gpa_calculator.py

def gpa_calculator(class_details):

    if not class_details:
        print("NO CLASS DETAILS FOR GPA CALCULATOR!")
        return {"Weighted": "", "Unweighted": ""}

    LETTER_GPA = {
        "COLLEGE": {
            "A": 4.0,
            "A-": 3.7,
            "B+": 3.3,
            "B": 3.0,
            "B-": 2.7,
            "C+": 2.3,
            "C": 2.0,
            "C-": 1.7,
            "D+": 1.3,
            "D": 1.0,
            "D-": 0.7,
            "F": 0.0
        },
        "HONORS": {
            "A": 4.5,
            "A-": 4.2,
            "B+": 3.8,
            "B": 3.5,
            "B-": 3.2,
            "C+": 2.8,
            "C": 2.5,
            "C-": 2.2,
            "D+": 1.8,
            "D": 1.5,
            "D-": 1.2,
            "F": 0.5
        },
        "AP": {
            "A": 5.0,
            "A-": 4.7,
            "B+": 4.3,
            "B": 4.0,
            "B-": 3.7,
            "C+": 3.3,
            "C": 3.0,
            "C-": 2.7,
            "D+": 2.3,
            "D": 2.0,
            "D-": 1.7,
            "F": 1.0
        }
    }

    classes = class_details["CLASSES"]
    classCount = len(classes)
    unweightedTotal = 0
    weightedTotal = 0

    for _class in classes:
        className = _class["CLASS_NAME"]
        classGrade = _class["LETTER_GRADE"]
        if classGrade == "TBA":
            classCount -= 1
            continue

        AP = re.findall("AP", className)
        AP2 = re.findall("Advanced Placement", className)
        HONORS = re.findall("Honors", className)
        COLLEGE = re.findall("College", className)

        # Unweighted GPA Calc
        unweightedTotal += LETTER_GPA["COLLEGE"][classGrade]

        # Weighted GPA Calc
        if COLLEGE:
            weightedTotal += LETTER_GPA["COLLEGE"][classGrade]
        elif HONORS:
            weightedTotal += LETTER_GPA["HONORS"][classGrade]
        elif AP or AP2:
            weightedTotal += LETTER_GPA["AP"][classGrade]
        else:
            weightedTotal += LETTER_GPA["COLLEGE"][classGrade]
    if not classCount:
        weightedGPA = 0
        unweightedGPA = 0
    else:
        weightedGPA = round(weightedTotal / classCount, 2)
        unweightedGPA = round(unweightedTotal / classCount, 2)

    return {"Weighted": weightedGPA,
            "Unweighted": unweightedGPA}