customer.py

class Person:
    def __init__(self, name, address, phone):
        self._name = name
        self._address = address
        self._phone = phone

#boy = Person("Jake", "123 Main Street", "123-456-7890")
#print(boy._name, boy._address, boy._phone)

class Customer(Person):
    def __init__(self, name, address, phone, number, mailing_list):
        Person.__init__(self, name, address, phone)
        self._number = number
        self._mailing_list = (mailing_list == 'True') # convert string to boolean (reference: http://stackoverflow.com/a/715455/670433)

#customer = Customer("Mary", "456 Main Street", "111-222-3333", "456", 'True')
#print(customer._name, customer._address, customer._phone, customer._number, customer._mailing_list)

print("----------------")
print("CUSTOMERS APPLICATION")
print("-----------------")

name = input("Please input the customer's name (e.g. 'Mary'): ")
address = input("Please input the customer's address (e.g. '456 Main Street'): ")
phone_number = input("Please input the customer's phone number (e.g. '111-222-3333'): ")
id_number = input("Please input the customer's ID number (e.g. '789'): ")
mailing_list = input("Please indicate whether or not the customer wants to subscribe to the mailing list (e.g. 'True' or 'False'): ")

customer = Customer(name, address, phone_number, id_number, mailing_list)
print(customer._name, customer._address, customer._phone, customer._number, customer._mailing_list)