Is that possible to create some connection between to sphere?

[Jeff]

Yes, once you create the line you can move it like any other object:

import viz
import vizshape

viz.go()

viz.clearcolor(viz.SLATE)
vizshape.addGrid()

viz.startLayer(viz.LINES) 
viz.vertex(0,0,0)  
viz.vertex(0,1,0) 
line = viz.endLayer() 

line.setPosition([2,0,7])
line.color(viz.RED)