Количество точек в области

from turtle import *

speed(10)


scale = 30
dot() # начало координат

fd(100)
rt(90)
fd(100)
rt(30)
color('','orange')  # color('','orange') если не брать границы
begin_fill()
pd()
for i in range(4):
    fd(25*scale)
    rt(90)
end_fill()
pu()
ht()


canv = getcanvas()

x1,y1,x2,y2 = -40*scale,-20*scale,20*scale,30*scale


canv.update()

k = 0
for x in range(x1, x2, scale):
    for y in range(y1, y2, scale):
        item = canv.find_overlapping(x, y, x, y)
        if item:
            color = canv.itemcget(item,'fill')
            if color == 'orange':
                k += 1
                print(x,y,canv.find_overlapping(x, y, x, y), k)
                canv.create_oval(x-2,y-2,x+2,y+2, fill='green', outline='green')
                canv.create_text(x,y,text=k)
                canv.update()


for x in range(x1, x2, scale):
    canv.create_line(x,y1,x,y2)

for y in range(y1, y2, scale):
    canv.create_line(x1,y,x2,y)

canv.update()

print(k)


done()