def main(cont):
	own = cont.owner
	mouse = bge.logic.mouse

	if own not in 'sys':
		ob_list = bge.logic.getCurrentScene().objects
		
		# Setup the viewports
		x = bge.render.getWindowWidth()
		y = bge.render.getWindowHeight()
		
		cam = ob_list['Camera']
		cam.useViewport = True
		cam.setViewport(0, 0, x//2, y)
		
		cam = ob_list['Camera2']
		cam.useViewport = True
		cam.setViewport(x//2, 0, x, y)
	
		# Create our systems and show the mouse
		own['sys'] = MySys([0, 0, 0.5, 1])
		own['sys2'] = MySys([0.5, 0, 0.5, 1])
		mouse.visible = True

	else:
		own['sys'].main()
		own['sys2'].main()
dataset/ETHPy150Open Moguri/bgui/examples/viewports/blender_test.py/main/swapped operands of `not in`