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Python Programming

Create a class called Invoice which a hardware store could use to represent an invoice for an item sold at their store.

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Hardware store Invoice

Create a class called Invoice which a hardware store could use to represent an invoice for an item sold at their store. An Invoice should include five pieces of information:

  • Item name (string)
  • item description (string),
  • Quantity of the item being purchased (int)
  • Date of purchased (datetime)
  • Price per item (type int).

Your class should have a constructor that initializes the five data members. In addition, provide the following class attributes and assign proper values to them:

  • Store address (string)
  • Store name (string)

Create a member function named getInvoiceAmount that calculates the invoice amount (i.e., multiplies the quantity by the price per item), then returns the amount as an int value.

Make sure to include a str method to  return  a  string  which  contains  formatted  data members & class attributes information. Also, overload the add operator to add the total invoice amount of 2 invoice objects.

 

In this project, you will need a dictionary where the key of each element will be the item name and the value is a list of following the part description & the price in this item.

Feel free to use the following dictionary or create your own.

 

Items = { "Screw":["a type of fastener",8.35] \

,"Hammer":["a weighted head fixed to a long handle",19.40] \

,"pocket knife":[" a foldable knife with one or more blades",8.35] \

,"Saw":["a tool consisting of a tough blade",9.99] \

,"Ladder":["an inclined set of steps",49.98] \

,"Rake":["a broom for outside use",31.99] \

,"Gloves":["a garment covering the whole hand"3.62] \

,"screwdriver":["screwing and unscrewing screws",9.68] \

,"Wrench":["tool used to provide grip",38.35] \

,"Allen key":["tool to drive screws with hexagonal sockets",12.53]}

 

Create a menu to welcome the customers and then provide the costumers with a list of options: 1- View the items

  • Shop
  • Check out
  • Exit

 

View the items option should call a function to view the dictionary keys and values.

 

Shop option should ask the user to enter the item and the quantity of the item. Make sure that the item entered by the user should be an element in the dictionary. Otherwise an error message should be presented. For each item entered by the user, a new invoice object should be created and appended to a list of invoice objects. After finishing shopping, print the invoice object using print statement

Check out option will calculate the total amount of all the invoice objects in the list. Exit option will terminate the program wishing the customers a happy day.

Output Sample

 Welcome to Tough Stuff Hardware 1- View the items

  • Shop
  • Check out
  • Exit

Please make a choice:7

Invalid input, please try again... 1- View the items

  • Shop
  • Check out
  • Exit

Please make a choice:qwe Unacceptable Entry, please try again 1- View the items

  • Shop
  • Check out
  • Exit

Please make a choice:1

----------------------------------------------------------------------------------

Screw : a type of fastener .    Price: 8.35

Hammer : a weighted head fixed to a long handle . Price: 19.4

pocket knife :  a foldable knife with one or more blades Price: 8.35

Saw : a tool consisting of a tough blade .                     Price: 9.99

Ladder : an inclined set of steps . Price: 49.98 Rake : a broom for outside use .        Price: 31.99

Gloves : a garment covering the whole hand . Price: 3.62 screwdriver : screwing and unscrewing screws . Price: 9.68 Wrench : tool used to provide grip . Price: 38.35

Allen key : tool to drive screws with hexagonal sockets .      Price: 12.53

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