turtle.ontimer() 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.ontimer()
This function is used to install a timer, which calls fun after t milliseconds.
Syntax :
turtle.ontimer(fun, t=0)
Parameters:
| Arguments | Description |
| fun | a function with no arguments |
| t | a number >= 0 |
Below is the implementation of the above method with an example :
# import packages
import turtle
import random
# global colors
col = ['red', 'yellow', 'green', 'blue',
'white', 'black', 'orange', 'pink']
# method to call on timer
def fxn():
global col
ind = random.randint(0, 7)
# set background color of the
# turtle screen randomly
sc.bgcolor(col[ind])
# set screen
sc = turtle.Screen()
sc.setup(400, 300)
# loop for timer
for i in range(10):
turtle.ontimer(fxn, t=400*(i+1))
Output :
Here we can find that after some time (set by timer) it automatically changes the background color of the turtle graphics window randomly.
