class Student:

def __init__(self):

self.name = input("Enter Student name : ")

self.en_no = int(input("Enter enrollment number : "))

''' We can also use method instead of constructor

def student_details(self):

self.name = input("Enter Student name : ")

self.en_no = int(input("Enter enrollment number : ")) '''

def show_stu_detail(self):

print("Student name is : ",self.name)

print("Student enrollment number is : ",self.en_no)

class Marks:

def __init__(self):

self.m1 = int(input("Enter marks of subject 1 : "))

self.m2 = int(input("Enter marks of subject 2 : "))

self.m3 = int(input("Enter marks of subject 3 : "))

''' We can also use method instead of constructor

def student_marks(self):

self.m1 = int(input("Enter marks of subject 1 : "))

self.m2 = int(input("Enter marks of subject 2 : "))

self.m3 = int(input("Enter marks of subject 3 : ")) '''

def show_marks(self):

print("Marks of subject 1 : ",self.m1)

print("Marks of subject 2 : ",self.m2)

print("Marks of subject 3 : ",self.m3)

class Result(Student,Marks):

def __init__(self):

Student.__init__(self)

Marks.__init__(self)

def findAvg(self):

print("Average is : ",'{:.2f}'.format((self.m1+self.m2+self.m3)/3))

r1 = Result()

r1.show_stu_detail()

r1.show_marks()

r1.findAvg()