oops.py

class Person(object):
 
 # __init__ is known as the constructor
 def __init__(self, name, idnumber):
 self.name = name
 self.idnumber = idnumber
 
 def display(self):
 print(self.name)
 print(self.idnumber)
 
 def details(self):
 print("My name is {}".format(self.name))
 print("IdNumber: {}".format(self.idnumber))
 
# child class
class Employee(Person):
 def __init__(self, name, idnumber, salary, post):
 self.salary = salary
 self.post = post
 
 # invoking the __init__ of the parent class
 Person.__init__(self, name, idnumber)
 
 def details(self):
 print("My name is {}".format(self.name))
 print("IdNumber: {}".format(self.idnumber))
 print("Post: {}".format(self.post))
 
 
# creation of an object variable or an instance
a = Employee('Rahul', 886012, 200000, "Intern")
 
# calling a function of the class Person using
# its instance
a.display()
a.details()