Python Programming Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four peices of information as data attributes: a part number(string), a part description(string), a quantity of the item being purchased(an int), and a price per item(a decimal). Your class should have an __init__ method that initializies the four data attributes. Provide a property for each data attribute. The quantity and price per item should each be non-negative, use validation in the properties for these data attributes to ensure that they remain valid. Provide a calculate_invoice method that returns the invoice amount (that is, multiplies the quantity by the price per item). Demonstrate class Invoice's capabilities.

Part 1: Write a program that tracks employee information. The program should use classes for employee records. Each employee should have a record containing the following information: First Name Last Name Phone Number Address City State Zip Position Job title Payment type The program should be able to allow for the following: the input of new employees, display of existing employees, editing existing employees, deleting employees. To display payment type/salary This must calculate pay for either an hourly paid worker or a salaried worker. Hourly paid workers are paid their hourly pay rate times the number of hours worked. Salaried workers are paid their regular salary plus any bonus they may have earned. The program should declare two structures for the following data: Hourly Paid: HoursWorked HourlyRate Salaried: Salary Bonus The program should ask the user whether he or she is calculating the pay for an hourly paid worker or a salaried worker. Regardless of which the user selects,…

Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at store. An Invoice should include six data members- a)    part number (type string) b)    part description (type string) c)    quantity of the item being purchased (type int) d)    price per item (type int) e)    value-added tax (VAT) rate as a decimal (type double) f)      Discount rate as a decimal (type double). Your class should have a constructor that initializes the six data members. The constructor should initialize the first four data members with values from parameters and the last two data members to default values of 0.20 per cent and zero respectively. Provide a set and a get functions for each data member. In addition, provide a member function named getInvoiceAmount that calculates the invoice amount (i.e., multiplies the quantity by the price per item and applies the tax and discount amounts), then returns the amount. Have the set data members perform validity checks…

Code should be in Python