newbie - needing direction

[bobueland at yahoo.com]

I'm a newbie, just got through van Rossum's tutorial and I would like
to try a small project of my own. Here's the description of my project.

When the program starts a light blue semi-transparent area, size 128 by
102,  is placed in the middle of the screen. The user can move this
area with arrow the keys. When the user hits the Enter key, a magnified
picture of the chosen area is shown on the screen (10 times
magnification on a 1280 by 1024 monitor). When the user hits the Enter
key the program exits leaving the screen as it was before the program
started.

Could someone direct me what libraries and modules I should study in
order to accomplish this.

Thanks Bob