How to Use OOPS instead of displaying to the window in a list

[MyCollegeAcc]

def draw_forest(win):

therow = 0
trees = 0
y = 14
tree_num = 1

list_of_trees = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]

while therow < 10:
x = 14
while trees < 15:
tree = Tree(Point(x,y), "0_tree.png", tree_num)


image = Image(tree.get_point(), tree.get_image())
image.draw(win)
x += 29
tree_num += 1
trees += 1




y += 29
trees = 0
therow += 1

list_of_trees = [list_of_trees] * therow
print(list_of_trees)
return list_of_trees


How to display the following using onject oriented projramming.