code: def hit(self, pt):
          
  
          if self.hidden or not self._enabled:
              return None
  
          if not self.frame.collidepoint(pt):
              return None
  
          local_pt = (pt[0] - self.frame.topleft[0],
                      pt[1] - self.frame.topleft[1])
  
          for child in reversed(self.children):   # front to back
              hit_view = child.hit(local_pt)
              if hit_view is not None:
                  return hit_view
  
          return self
docs: Find the view (self, child, or None) under the point `pt`.