Guide to Python (University at Buffalo Version)

Chapter 9: Python Turtle Graphics

Using Python Turtle Graphics

Python provides a graphical drawing tool called Turtle graphics. To begin using Turtle, you must first import turtle. Below are a few examples.

# first_turtle.py

import turtle

# Set the window size
turtle.setup(300, 100)
# Set the window title
turtle.title('My First Turtle')
# set the pen color
turtle.pencolor("Dark Orange")
# Move the turtle
turtle.forward(50)

Figure 9-1: Python Using Turtle Code

fig9-2 — Figure 9-2: Python Using Turtle IDLE Output

# first_turtle.py

import turtle

def main():
    turtle.setup(200, 300)
    # Set the window title
    turtle.title('My First Turtle')
    # set the pen color
    turtle.pencolor("Dark Orange")
    # Move the turtle
    turtle.forward(50)
    for i in range(100, 110):
        turtle.left(90)
        turtle.forward(i)
        turtle.left(5)
main()
# keep window open
turtle.Screen().exitonclick()

Figure 9-3: Python Using Turtle Code

fig9-4 — Figure 9-2: Python Using Turtle IDLE Output