Download offline satelite to be used for python app [on hold]

I need to download a high resolution map close as i can get that is publicly available as a satellite image to be used offline from the internet about to be used in my python app.

This map will be then used as a GUI python app to as accurately plot my current coordinates of a robot given to me by our other modules, waypoint lines, heading, and end point

Currently just using a image from google maps and using pygame to place points, but its hard to accurately plot points of real coordinates of latitude and longitude.