Draw day and night with the Python turtle module

turtle_blue_sky.py

from turtle import *
from random import *

def RandomPosition():
    penup()
    posx = randint(-500, 500)
    posy = randint(-200, 300)
    setpos(posx, posy)
    pendown()
    
def seagull(gullsize):
    color("Grey")
    pensize(2)
    penup()
    setheading(90)
    RandomPosition()
    pendown()
    right(135)
    forward(gullsize)
    left(90)
    forward(gullsize)
    penup()

def skies(size):
    color("White")
    RandomPosition()
    setheading(360)
    pendown()
    begin_fill()
    circle(size,180)
    setheading(90)
    circle(size*1.33,180)
    setheading(180)
    circle(size,180)
    forward((size*1.33)*2)
    left(90)
    forward(size*2)
    end_fill()
    penup()

def thesun():
    color("Yellow")
    RandomPosition()
    pendown()
    begin_fill()
    circle(70)
    end_fill()
    penup()

def rainbow(size):
    penup()
    colors = ["#FF0000", "#FFA500", "#FFFF00", "#00FF00",
              "#0000FF", "#4B0082", "#8F00FF"]
    posx = randint(-400, 400)
    posy = -450
    for c in colors:
        color(c)
        setpos(posx, posy)
        setheading(90)
        pendown()
        begin_fill()
        circle(size, 180)
        left(90)
        forward(10)
        left(90)
        circle(-size+10, 180)
        left(90)
        forward(10)
        end_fill()
        penup()

        posx = posx-10
        size = size-10

def house(x, y, h, w, col):
    color(col)
    pencolor("Black")
    setpos(x, y)
    setheading(90)
    pendown()
    begin_fill()
    for i in range(2):
        forward(h)
        right(90)
        forward(w)
        right(90)
    end_fill()
    penup()


setup(1200, 900)
bgcolor("SkyBlue")
tracer(0) # sett til 0 for å tegne umiddelbart, da betyr speed() ingenting
speed('fastest')
hideturtle()

# Draw the sun
thesun()

# Draw a rainbow
rainbow(300)

# Draw seven skies in random sizes
for sky in range(7):
    size = randint(10, 40)
    skies(size)

# Draw 20 seagulls
for gull in range(20):
    gullsize = randint(5, 25)
    seagull(gullsize)

exitonclick()

turtle_starry_sky.py

from turtle import *
from random import *

def RandomPosition():
    penup()
    posx = randint(-700, 700)
    posy = randint(-500, 500)
    setpos(posx, posy)
    pendown()

def DrawStar(size, starcolor):
    color(starcolor)
    pendown()
    begin_fill()
    for line in range(5):
        left(144)
        forward(size)
    end_fill()
    penup()

def DrawConstallation(numberofstars):
    RandomPosition()
    for star in range(numberofstars-1):
        dot(randint(5, 10), "White")
        pendown()
        left(randint(-110, 110))
        forward(randint(20, 50))
    dot(randint(5, 10), "White")

def DrawGalaxy(numberofstars):
    starcolors = ["White","LightBlue","Pink"]
    RandomPosition()
    for star in range(numberofstars):
        penup()
        left(randint(-200, 200))
        forward(randint(2, 15))
        pendown()
        dot(2, choice(starcolors))

# Setup values
skjerm_bredde = 1600
skjerm_hoyde = 1000
setup(skjerm_bredde, skjerm_hoyde)
tracer(0) # sett til 0 for å tegne umiddelbart, da betyr speed() ingenting
speed('fastest')
bgcolor("#000316")
hideturtle()

# Draw 50 random stars
for i in range(50):
    RandomPosition()
    DrawStar(randint(5, 25), "White")

# Draw 5 constellations
for constellation in range(5):
    DrawConstallation(randint(4, 7))

# Draw 4 small galaxies, each with 40 stars
for galaxy in range(4):
    DrawGalaxy(40)

exitonclick()