code: def get_image_ratio(self, image):
          
          x, y = self.get_image_size(image)
          return float(x) / y
docs: Calculates the image ratio (X to Y).
  
          :param Image image: This is your engine's ``Image`` object. For
              PIL it's PIL.Image.
          :rtype: float
          :returns: The X to Y ratio of your image's dimensions.