Turtle graphics on the Raspberry Pi

steps.txt

Double-click LXTerminal and type:
$ idle -n
(the IDLE window appears)
>>> from turtle import *
>>> fd(100)
(a window with a line appears)
How to draw a square:
>>> fd(100)
>>> rt(90)
>>> fd(100)
>>> rt(90)
>>> fd(100)
>>> rt(90)
>>> fd(100)
>>> rt(90)

IDLE menu:
File -> New Window
(a blank window appears, you type:)
from  turtle  import  *
def  tri(size):
     fd(size)
     rt(120)
     fd(size)
     rt(120)
     fd(size)
     rt(120)

File -> Save
figura.py [Save]

(abrir Python Shell)

>>> from figura import *
>>> tri(100)

>>> rt(10)
>>> tri(90)
>>> rt(10)
>>> tri(90)
>>> rt(10)
>>> for n in range(36):
...   rt(10)
...   tri(90)
>>>