Python Programming- Invoice Class Introduction: Requires creating classes and instantiating objects from created class Instructions: 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 pieces of information as data attributes--a part number (a string), a part description (a string), a quantity of the item being purchased (an int.) and a price per item (a Decimal). Your class shold have an __init__ method that intializes the four data ttributes. 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. Once you have written the class, write a program that creates two Invoice Objects to hold the following data:  ________________________________________________________________________________ Part Num             Description         Quantity              Price                      Total ________________________________________________________________________________ 1001                       Hammer              20                           15                     300 1002                       locks                      15                           5                      75      The program should store this data in the two objects, then display the object information in the manner shown in the table above , note that the total is NOT hardcoded, it’s calculated based on the item’s quantity and price.   Note: Write program Pseudocode (detail algorithm) and add it as a comment block to the program.

Python Programming- Invoice Class

Introduction:

Requires creating classes and instantiating objects from created class

Instructions:

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 pieces of information as data attributes--a part number (a string), a part description (a string), a quantity of the item being purchased (an int.) and a price per item (a Decimal). Your class shold have an __init__ method that intializes the four data ttributes. 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.

1. Once you have written the class, write a program that creates two Invoice Objects to hold the following data: 

________________________________________________________________________________

Part Num             Description         Quantity              Price                      Total
________________________________________________________________________________

1001                       Hammer              20                           15                     300

1002                       locks                      15                           5                      75   

1. The program should store this data in the two objects, then display the object information in the manner shown in the table above , note that the total is NOT hardcoded, it’s calculated based on the item’s quantity and price.

Note: Write program Pseudocode (detail algorithm) and add it as a comment block to the program.