Using functions

import py2rhino as p2r
print p2r._version
#------------------------------------------------------------------------------ 
#global variables
points = ((0,0,0), (0,10,0), (10,10,0))

#------------------------------------------------------------------------------ 
def create_base(): 
    return p2r.obj.Polyline.create(points)

def extrude_base(base):
    start = (0,0,0)
    end = (0,0,10)
    return p2r.obj.NurbsSurface.create_by_extrude_crv_straight(base, start, end)

def copy_and_rotate_srf(srf):
    srf_copy = srf.dupl.copy_move_by_vec((0,0,10))
    srf_copy.trfm.rotate( (0,0,0), 5, (0,0,1))
    return srf_copy

#------------------------------------------------------------------------------ 
base = create_base()
srf = extrude_base(base)

for i in range(10):
    srf = copy_and_rotate_srf(srf)