Pygame Snake, Pt. 1

Pygame is a module designed to allow us to make 2D games using Python. I am just learning pygame myself. I've always loved the game Snake, and I find that it makes a good learning project, too. When using pygame, we will draw each frame of our animation to an offscreen buffer. That is basically like an invisible canvas that exists in memory. This allows us to draw the scene piece by piece, and then when its done copy the whole buffer to the onscreen canvas. Pygame will also handle the event loop