For Python:

Create a program that reads the sales for 12 months from a file and calculates the total yearly sales as well as the average monthly sales. In addition, this program should let the user edit the sales for any month.

* Your instructor should provide a CSV file named monthly_sales.csv that contains the month and sales data shown above.

* For the edit command, display an error message if the user doesn't enter a valid three-letter abbreviation for the month.

* When the user edits the sales amount for a month, the data should be saved to the CSV file immediately. That way, no data is lost, even if the program crashes later.

* Round the results of the monthly average to a maximum of 2 decimal digits.

(Have to use functions)

Project 7-4: Monthly Sales Create a program that reads the sales for 12 months from a file and calculates the total yearly sales as well as the average monthly sales. In addition, this program should let the user edit the sales for any month. Console Monthly Sales program comMAND MENO monthly - View monthly sales yearly - View yearly summary edit - Edit sales for a month exit - Exit program Command: monthly Jan - 14317 Feb - 3903 Mar - 1073 Apr - 3463 May - 2429 Jun - 4324 Jul - 9762 Aug - 15578 Sep - 2437 Oct - 6735 Nov - 88 Dec - 2497 Command: yearly Yearly total: Monthly average: 55606 Command: edit Three-letter Month: Nov Sales Amount: 8854 Sales amount for Nov was modified. Command: exit Bye! Specifications - Your instructor should provide a CSV file named monthly_sales.csv that contains the month and sales data shown above. - For the edit command, display an error message if the user doesn't enter a valid three-letter abbreviation for the month. - When the user edits the sales amount for a month, the data should be saved to the CSV file immediately. That way, no data is lost, even if the program crashes later. - Round the results of the monthly average to a maximum of 2 decimal digits