import example # Create the Circle object r = 2; print " Creating circle (radium: %d) :" % r c = example.Circle(r) # Set the location of the object c.x = 20 c.y = 30 print " Here is its current position:" print " Circle = (%f, %f)" % (c.x,c.y) # ----- Call some methods ----- print "\n Here are some properties of the Circle:" print " area = ", c.area() print " perimeter = ", c.perimeter() dx = 1; dy = 1; print " Moving with (%d, %d)..." % (dx, dy) c.move(dx, dy) del c print "===================================" # test move function */ r = 2; print " Creating circle (radium: %d) :" % r c = example.Circle(r) # Set the location of the object c.x = 20 c.y = 30 print " Here is its current position:" print " Circle = (%f, %f)" % (c.x,c.y) # ----- Call some methods ----- print "\n Here are some properties of the Circle:" print " area = ", c.area() print " perimeter = ", c.perimeter() # no error for Circle's pre-assertion dx = 1; dy = -1; print " Moving with (%d, %d)..." % (dx, dy) c.move(dx, dy) # error with Shape's pre-assertion dx = -1; dy = 1; print " Moving with (%d, %d)..." % (dx, dy) c.move(dx, dy)