Give an example of Composition in Python

In composition one of the classes is composed of one or more instance of other classes. In other words one class is container and other class is content and if you delete the container object then all of its contents objects are also deleted.

 class Salary:
    def __init__(self, pay):
        self.pay = pay
 
    def get_total(self):
        return (self.pay*12)
 
 
class Employee:
    def __init__(self, pay, bonus):
        self.pay = pay
        self.bonus = bonus
        self.obj_salary = Salary(self.pay)
 
    def annual_salary(self):
        return "Total: " + str(self.obj_salary.get_total() + self.bonus)
 
 
obj_emp = Employee(600, 500)
print(obj_emp.annual_salary())

Sample output of above program.

Total: 7700

Python Programming

Give an example of Composition in Python

Sample output of above program.