Please use python

2.15.4 Exercise 4: OOP name, 100 * 1. Create a class Employee with 2 attributes provided in the constructor: years_of_service. With one method salary with is obtained by 1500 + years_of_service. 2. Create a subclass Manager which redefine salary method 2500 + 120 * years_of_service. 3. Create a small dictionary-nosed database where the key is the employee's name. Populate the database with: samples = Employee(lucy', 3), Employee('john, 1), Manager("julie', 10), Manager (paul', 3) 4. Return a table of made name, salary rows, i.e. a list of list [[name, salary]] 5. Compute the average salary