Three Turtle Graphics Scripts

# Script 1

from turtle import *
s = Screen( )
t = Turtle( )

# Define a distance that can be changed later.
d = 60

t.forward(d)
t.left(90)
t.forward(d)
t.left(90)
t.forward(d)
t.right(90)
t.forward(d)
t.right(90)
t.forward(d)

# Script 2

import turtle
s = turtle.Screen( )
t = turtle.Turtle( )
for i in range(0, 20):
    t.forward(100)
    t.penup( )
    t.backward(100)    
    t.left(90)
    t.forward(5)
    t.right(90)
    t.pendown( )
    
# Script 3

from turtle import *
s = Screen( )
t = Turtle( )
t.speed(200)
for i in range(0, 360, 5):
    t.forward(100)
    t.backward(100)    
    t.left(5)