Learning Python using Turtle: Lesson 1

[satishgoda]

Module

import turtle
turtle
turtle?
dir(turtle)

dir is used to view the contents of a python object.

Just typing dir() will list the objects that are available for access via names in the current context/environment.

i = 10 # name i refers to an integer object with value 10

from turtle import Screen, Turtle
Screen?
screen = Screen()
screen
dir(screen)
screen.setup?
screen.setup(600, 600)
screen.setup(width=640, height=480)
screen.turtles?
screen.turtles()
turtles = screen.turtles()
turtles
Turtle?
turtle = Turtle()
turtles
turtle.color?
turtle.color('green')
turtle.shape?
turtle.shape('turtle')
turtle.forward(100)
turtle.home()
turtle.clear()
turtle.pencolor?
turtle.pencolor('red')
turtle.forward(100)
turtle2 = Turtle('triangle')
turtles
turtle2.color('red')
turtle2.pencolor('green')
turtle2.left(90)
turtle2.forward(100)
for item in turtles:
    item.forward(50)
for item in turtles:
    item.backward(50)
turtle2.undo()
turtle.undo()
for item in turtles:
    item.backward(50)
for item in turtles:
    item.undo()
for item in turtles:
    item.stamp()
    item.backward(50)
turtle2.clearstamp()
turtle2.clearstamp?
turtle2.clearstamps()
turtle.clearstamps()
turtle.screen
turtle2.screen
turtle.screen is turtle2.screen
screen
screen is turtle.screen is turtle2.screen