turtle.ontimer() function in Python (original) (raw)

Last Updated : 26 Jul, 2020

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:

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.