easiest way to plot x,y graphically during run-time?

[Esmail]

Hi all,

I am trying to visualize a number of small objects moving over
a 2D surface during run-time. I was wondering what would the easiest
way to accomplish this using Python? Ideally I am looking for a shallow
learning curve and efficient implementation :-)

These objects may be graphically represented as dots, or preferably
as small arrow heads/pointy triangles moving about as their x,y
coordinates change during run-time.

Thanks,
Esmail