121COM Introduction to computer

Individual Assignment:

i have to write a Python program that allows user to load marks information from a file, calculate overall mark, and display grade information. From the system menu, user can selectively view 1) mark information of data loaded 2) all students� overall marks 3) students whose overall marks less than 40 4) a bar chart of grade distribution. To exit the program, user can enter 'Q' in system menu.

I am so confused how to starting the python program! Because i don't know what the instructions mean. But after i go up a few hall of this 119com program so i knew that what should i did in this python program.