from PIL import Image, ImageDraw

im = Image.new('RGB', (500, 300), (128, 128, 128))
draw = ImageDraw.Draw(im)

im.save('test.jpg', quality=95)

R_STEP = 4
r = 4
RADIAN_STEP = math.pi * 137.5 / 180.0
radian = 0.0

for i in range(40):
	x = r * math.cos(radian)
	y = r * math.sin(radian)

	draw.ellipse((x, y, x+4, y+4), fill=(255, 0, 0), outline=(0, 0, 0))

	r = r + R_STEP
	radian + RADIAN_STEP