XD

#global variables
name = ""
allStudents = []
classes = {"12A": [], "12B": [], "12C": []}
scienceAll = []
mathsAll = []
englishAll = []
namez = []
mathsAllSorted = []
scienceAllSorted = []
englishAllSorted = []
findex = []
def addNewClass():
    whatClass1 = input("Please input the name of the class that you want to add to the classes")

    if whatClass1 in classes.keys():
        print("That class is already made")
        addNewClass()
    else:
        classes[whatClass1] = []
        print("The classes there are right now is:", classes)


def printAllStudents():
    global allStudents
    global student
    print("Every student that is enrolled:")
    for p in range(len(allStudents)):
        print(allStudents[p].printName())


def lowestToHighest():
    global findex
    global scienceAllSorted
    global englishAllSorted
    global mathsAllSorted
    global namez
    global scienceAll
    global mathsAll
    global englishAll
    global student
    global allStudents
    mathsAllSorted.sort()
    scienceAllSorted.sort()
    englishAllSorted.sort()
    findex = []

    while True:
        while True:
            try:
                htlInput = int(input("What course would you like to check the grades of from highest to lowest  \n 1) Maths \n 2) Science \n 3) English \n "))
                break
            except ValueError:
                print("Please input a number")
        if htlInput == 1:
            print("Lowest To Highest for Maths results:")
            for i in mathsAllSorted:
                findex.append(mathsAll.index(i))
            for i in findex:
                print(namez[i],mathsAll[i])

            break
        elif htlInput == 2:
            print("Lowest To Highest for Science:")
            for i in scienceAllSorted:
                findex.append(scienceAll.index(i))
            for i in findex:
                print(namez[i],scienceAll[i])
            break

        elif htlInput == 3:
            print("Lowest To Highest for English")
            for i in englishAllSorted:
                findex.append(englishAll.index(i))
            for i in findex:
                print(namez[i],englishAll[i])
            break
        else:
            print("Please input 1,2 or 3")


class Student:

    name = ""
    age = 0
    science = 0
    maths = 0
    english = 0
    def __init__(self,name,age,science,maths,english):
        self.name = name
        self.age = age
        self.science = science
        self.maths = maths
        self.english = english
        print("Name is", self.name)
        print("Age is", self.age)
        print("Science result is", self.science)
        print("Maths result is", self.maths)
        print("English result is" , self.english)

    def average(self):
        self.Averagenum = (self.science + self.maths + self.english) / 3
        print("The average is",self.Averagenum)

    def printName(self):
        return self.name
    def printScience(self):
        return self.science
    def printMaths(self):
        return self.maths

    def printEnglish(self):
        return self.english



def mainFunct():
    global englishAllSorted
    global scienceAllSorted
    global mathsAllSorted
    global namez
    global allStudents
    global findex
    subBool = True
    workClass = []
    global classes
    dictStudent = []
    mainBool = True
    global scienceAll
    global mathsAll
    global englishAll
    newAllStudents = []

    loopBool = True
    while mainBool == True:

        print("Welcome to Raf's Student Grade Book")
        while True:
            try:
                menu = int(input(" 1) Add a new student to a class \n 2) Add a new class \n 3) List of all the students enrolled \n 4) Lowest to Highest \n 5) add new marks \n 6) Change"))
                break
            except ValueError:
                print("Please enter in a number")

        if menu == 1:

            name = input("What is their name")
            while True:

                try:

                    age = int(input("What is their age"))
                    break
                except ValueError:
                    print("Ages only contain letters...")


            while loopBool == True:
                while True:
                    try:
                        science = int(input("What was their science result out of 100"))
                        break
                    except ValueError:
                        print("Sciene Results only contains letters...")
                if science <= 100:
                    loopBool = False
                else:
                    print("The science results is /100")

            loopBool = True

            while loopBool == True:
                while True:
                    try:
                        maths = int(input("What was their maths result out of 100"))
                        break
                    except ValueError:
                        print("Maths Results only contain letters...")
                if maths <= 100:
                    loopBool = False
                else:
                    print("The maths results are /100")
            loopBool = True

            while loopBool == True:
                while True:
                    try:
                        english = int(input("What was their english result out of 100"))
                        break
                    except ValueError:
                        print("English results usuallly only contain letters...")
                if english <= 100:
                    loopBool = False
                else:
                    print("THe english results is out of 100")

            loopBool = True

            student = Student(name,age,science,maths,english)
            allStudents.append(student)
            scienceAll.append(student.science)
            mathsAll.append(student.maths)
            englishAll.append(student.english)
            namez.append(student.name)
            mathsAllSorted = mathsAll[:]
            scienceAllSorted = scienceAll[:]
            englishAllSorted = englishAll[:]


            subBool = True

            while subBool == True:
                #Put this here if yo uwant to display the amount of classes a little better:  classesInit = []


                whatClass = input("What class would you like to add a new student to:"+ str(classes.keys()))
                if whatClass in classes:
                    classes[whatClass].append(name)
                    print("The students in", whatClass, "is")
                    for i in range(len(classes[whatClass])):
                        print(classes[whatClass][i])
                        subBool = False

                else:
                    print("Sorry there is no class called" + whatClass)




        #elif statements

        elif menu == 2:
            addNewClass()

        elif menu == 3:
            printAllStudents()

        elif menu == 4:
            lowestToHighest()
        else:
            print("Please select either 1,2,3,4 or 5")


mainFunct()