Hacker Rank 30 day code Challenge (Inheritance and constructor in python)

 Hacker Rank 30 day code Challenge (Inheritance and constructor in python)

Problem:

The parent class is Person. Make a subclass Student. The Student has attributes first name, last name, Id, Scores.

Input: First Name, Last Name, ID, Number of scores (e.g 2 or 3) , Scores

Take the average of scores and print.

(Starting Person class code and Ending code is already provided in hacker rank editor)

class Person:

    def __init__(self, firstName, lastName, idNumber):

        self.firstName = firstName

        self.lastName = lastName

        self.idNumber = idNumber

    def printPerson(self):

        print("Name:", self.lastName + ",", self.firstName)

        print("ID:", self.idNumber)

        

class Student(Person):

    def __init__(self, firstName, lastName, idNumber,scores):

        self.firstName = firstName

        self.lastName = lastName

        self.idNumber = idNumber

        self.scores = scores

    def calculate(self):

        sumscore=0

        for i in range(numScores):

            sumscore = sumscore +int(scores[i])

            avg = sumscore / numScores

       

        if avg >=90.0 and avg<=100.0:

            return 'O'

        elif avg >=80.0 and avg<=90.0:

            return 'E'

        elif avg>=70.0 and avg<=80.0:

            return 'A'

        elif avg>=55.0 and avg<=70.0:

            return 'P'

        elif avg>=40.0 and avg<=55.0:

            return 'D'

        else:

            return'T'

  

line = input().split()

firstName = line[0]

lastName = line[1]

idNum = line[2]

numScores = int(input()) # not needed for Python

scores = list( map(int, input().split()) )

s = Student(firstName, lastName, idNum, scores)

s.printPerson()

print("Grade:", s.calculate())