##################################################################################
def readFile(NameList, CourseworkList, PrelimList, percentage_mark):
#opening the file with the data
    calculation = 0
    with open ('SDD Unit Assess P3 Class Marks.csv') as csvfile:
        GRADE_CSV = csv.reader(csvfile, delimiter=',')
        for row in GRADE_CSV:
            name = row[0]
            coursework_mark = row[1]
            prelim_mark = row[2]

            NameList.append(name)
            CourseworkList.append(int(coursework_mark))
            PrelimList.append(int(prelim_mark))

            #calculating the % mark for the pupil
            calculation = (100/150) * (int(coursework_mark)) + (int(prelim_mark))
            percentage_mark.append(calculation)
    csvfile.close()
    calculatepercentage(percentage_mark, grade)

##################################################################################
def calculatepercentage(percentage_mark, grade):
#if statement to find out grade for pupil
    for index in range (0,12):
        if percentage_mark[index] < 45.00:
            grade.append("no grade")
        elif percentage_mark[index] >=45.00 and percentage_mark[index] <= 49.00:
            grade.append("D")
        elif percentage_mark[index] >=50.00 and percentage_mark[index] <= 59.00:
            grade.append("C")
        elif percentage_mark[index] >=60.00 and percentage_mark[index] <= 69.00:
            grade.append("B")
        elif percentage_mark[index] >= 70.00:
            grade.append("A")

#display data to user
        print(NameList[index], "you got" , round(percentage_mark[index],2), "% and your grade was", grade[index])
##################################################################################
#MAIN PROGRAM
#importing file with the data
import csv

#declaring variables
name = ""
coursework_mark = 0
prelim_mark = 0
NameList = []
CourseworkList = []
PrelimList = []
grade = []
percentage_mark = []

readFile(NameList, CourseworkList, PrelimList, percentage_mark)