E3-5.py

# Copyright (C) Deepali Srivastava - All Rights Reserved
# This code is part of Python course available on CourseGalaxy.com

class Employee:

    allowed_domains = {'yahoo.com', 'gmail.com', 'outlook.com'}
    
    def __init__(self,name,email):
        self.name = name
        self.email = email
   
    def display(self):
        print(self.name, self.email)

    @property
    def email(self):
        return self._email

    @email.setter
    def email(self, new_email):
        domain = new_email[new_email.index('@')+1 : ]
        if domain in Employee.allowed_domains:
            self._email = new_email
        else:
            raise RuntimeError(f'Domain {domain} is not allowed')
            
e1 = Employee('John','john@gmail.com')
e2 = Employee('Jack','jack@yahoo.com')
e3 = Employee('Jill','jill@outlook.com')
e4 = Employee('Ted','ted@yahoo.com')
e5 = Employee('Tim','tim@xmail.com')
e5.display()

e4.email = 'ted@ymail.com'
e4.display()

e3.email = 'jill@gmail.com'
e3.display()