turtle.onkey() function in Python
Last Updated :
26 Jul, 2020
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The turtle module provides turtle graphics primitives, in both object-oriented and procedure-oriented ways. Because it uses Tkinter for the underlying graphics, it needs a version of Python installed with Tk support.
turtle.onkey()
This function is used to bind fun to the key-release event of the key. In order to be able to register key-events, TurtleScreen must have focus.
Syntax :
turtle.onkey(fun, key)
Parameters:
| Arguments | Description |
| fun | a function with no arguments |
| key | a string: key (e.g. "a") or key-symbol (e.g. "space") |
Below is the implementation of the above method with some examples :
Example 1 :
# import package
import turtle
# method for key call
def fxn():
turtle.forward(40)
# set turtle screen size
sc=turtle.Screen()
sc.setup(600,300)
# motion
turtle.forward(40)
# call method on Right key
turtle.onkey(fxn,'Right')
# to listen by the turtle
turtle.listen()
Output :
Example 2 :
# import package
import turtle
# methods with different work
# at different keys
def fxn():
turtle.forward(20)
def fxn1():
turtle.right(90)
def fxn2():
turtle.left(90)
# set screen size
sc=turtle.Screen()
sc.setup(500,300)
# call methods
turtle.onkey(fxn,'space')
turtle.onkey(fxn1,'Right')
turtle.onkey(fxn2,'Left')
# to listen by the turtle
turtle.listen()
Output :
