turtle.ontimer() function in Python Last Updated : 26 Jul, 2020 Comments Improve Suggest changes Like Article Like Report 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 Descriptionfuna function with no argumentsta 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. Comment More infoAdvertise with us D deepanshu_rustagi Follow Improve Article Tags : Python Python-turtle Practice Tags : python Explore Python FundamentalsPython Introduction 3 min read Input and Output in Python 4 min read Python Variables 6 min read Python Operators 5 min read Python Keywords 2 min read Python Data Types 8 min read Conditional Statements in Python 3 min read Loops in Python - For, While and Nested Loops 7 min read Python Functions 8 min read Recursion in Python 6 min read Python Lambda Functions 6 min read Python Data StructuresPython String 6 min read Python Lists 6 min read Python Tuples 6 min read Dictionaries in Python 7 min read Python Sets 10 min read Python Arrays 9 min read List Comprehension in Python 4 min read Advanced PythonPython OOP Concepts 11 min read Python Exception Handling 6 min read File Handling in Python 4 min read Python Database Tutorial 4 min read Python MongoDB Tutorial 2 min read Python MySQL 9 min read Python Packages 12 min read Python Modules 7 min read Python DSA Libraries 15 min read List of Python GUI Library and Packages 11 min read Data Science with PythonNumPy Tutorial - Python Library 3 min read Pandas Tutorial 6 min read Matplotlib Tutorial 5 min read Python Seaborn Tutorial 15+ min read StatsModel Library- Tutorial 4 min read Learning Model Building in Scikit-learn 8 min read TensorFlow Tutorial 2 min read PyTorch Tutorial 7 min read Web Development with PythonFlask Tutorial 8 min read Django Tutorial | Learn Django Framework 10 min read Django ORM - Inserting, Updating & Deleting Data 4 min read Templating With Jinja2 in Flask 6 min read Django Templates 7 min read Python | Build a REST API using Flask 3 min read How to Create a basic API using Django Rest Framework ? 4 min read Python PracticePython Quiz 3 min read Python Coding Practice 1 min read Python Interview Questions and Answers 15+ min read Like