User.py

class User:
	rights = ['read']

	def __init__(self, name, age):
		self.name = name
		self.age = int(age)

	def __str__(self):
		return 'User: <name: {name}, age: {age}>'.format(name=self.name, age=self.age)


class Customer(User):
	rights = ['read', 'buy']

	def __init__(self, name, age, products=[]):
		super().__init__(name, age)
		self.products = products

	def buy(self, product):
		self.products.append(product)


user1 = User('Mr. Bean', 43)
user2 = User('Dr. Hide', 66)

customer1 = Customer('JJ', 28)