turtle.bk(distance) turtle.backward(distance)

turtle.begin_poly() Start recording the vertices of a polygon. Current turtle position is first vertex of polygon.

Cmd.cmdloop(intro=None) Repeatedly issue a prompt, accept input, parse an initial prefix off the received input, and dispatch

turtle.register_shape(name, shape=None) turtle.addshape(name, shape=None) There are three different ways to call