python maya change camera asceptRatio

import maya.cmds as cmds
import math

# Get the name of the current camera
current_camera = cmds.modelPanel(cmds.getPanel(withFocus=True), q=True, camera=True)

# Set the film aspect ratio of the current camera to 1.78
cmds.setAttr(current_camera + '.cameraAperture', 1.78, type='double2')

# Set the camera aperture to correspond to a 1.78 aspect ratio
diagonal = math.sqrt((36**2) + (20.25**2))
horizontal = diagonal / math.sqrt((1.78**2) + 1)
vertical = horizontal / 1.78
cmds.setAttr(current_camera + '.horizontalFilmAperture', horizontal)
cmds.setAttr(current_camera + '.verticalFilmAperture', vertical)