Untitled

import turtle
from turtle import *
turtle_screen = Screen()
turtle_screen.bgcolor('yellow')
turtle_screen.title('Movement')

bob_the_turtle = Turtle()
bob_the_turtle.color('red')
bob_the_turtle.speed(2)

bob_the_turtle.shape('turtle')


def up():
    bob_the_turtle.setheading(90)
    bob_the_turtle.forward(100)


def down():
    bob_the_turtle.setheading(270)
    bob_the_turtle.forward(100)


def left():
    bob_the_turtle.setheading(180)
    bob_the_turtle.forward(100)


def right():
    bob_the_turtle.setheading(0)
    bob_the_turtle.forward(100)


def r():
    bob_the_turtle.clear()


onkey(up, 'Up')
onkey(down, 'Down')
onkey(right, 'Right')
turtle.onkey(left, 'Left')
onkey(r, '7')

listen()

turtle.mainloop()

turtle_screen.exitonclick()