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 :
Python3
# 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.
