Carpenter learning python

[jefsummers]

What should I be learning and in what order to make it possible for me to create this?

Lots of discussion on the GUI, I will tackle this part. You said you are just learning Python, so I would suggest that you get a handle on basic structures and data types (lists, dictionaries, functions, classes, and basic operations). Then come up with a list of tasks that you want your program to do, such as read parts list, edit parts list, save parts list, calculate costs, calculate costs plus margin, save estimate, new estimate, load estimate, etc.. I don't know your business so there may be more items or fewer. Then, tackle each of those and learn what is needed. For example, file management for the loads and saves.