import turtle
import random
t = turtle.Turtle()
t.speed(0) # 1:slowest, 3:slow, 5:normal, 10:fast, 0:fastest

def chmurka(r = 20):
  t.setheading(250)
  t.begin_fill()
  for _ in range(2):
    for _ in range(3):
      t.circle(r, 180)
      t.right(160)
    for _ in range(2):
      t.circle(r, 220)
      t.right(160)
  t.end_fill()

def przesun(x,y):
  t.up()
  t.goto(x,y)
  t.down()

for x in range(-190,151,85):
  for y in range(-135,136,90):
    przesun(x,y)
    if (0 == random.randint(0,2)):
      t.fillcolor(145+random.randint(0,45),
                  190+random.randint(0,45),
                  205+random.randint(0,45))
      chmurka(5+random.randint(0,5))

t.fillcolor("lightblue")
przesun(40,0)
chmurka()
przesun(-100,-170)
chmurka(23)
przesun(-140,140)
chmurka(18)